Staging: Add SBE 2T3E3 WAN driver
authorKrzysztof Halasa <khc@pm.waw.pl>
Thu, 12 Aug 2010 21:14:07 +0000 (23:14 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 31 Aug 2010 00:36:50 +0000 (17:36 -0700)
This is a driver for SBE Inc.'s dual port T3/E3 WAN cards. Based on
their original GPLed driver.

The original driver tarball is now accessible at
http://userweb.kernel.org/~chris/SBE_2T3_Linux_2.0c.tgz

It needs at least a new generic HDLC setup code (not yet written) before
moving to drivers/net/wan.

Signed-off-by: Krzysztof HaƂasa <khc@pm.waw.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
18 files changed:
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/sbe-2t3e3/2t3e3.h [new file with mode: 0644]
drivers/staging/sbe-2t3e3/Kconfig [new file with mode: 0644]
drivers/staging/sbe-2t3e3/Makefile [new file with mode: 0644]
drivers/staging/sbe-2t3e3/TODO [new file with mode: 0644]
drivers/staging/sbe-2t3e3/cpld.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/ctrl.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/ctrl.h [new file with mode: 0644]
drivers/staging/sbe-2t3e3/dc.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/exar7250.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/exar7300.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/intr.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/io.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/main.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/maps.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/module.c [new file with mode: 0644]
drivers/staging/sbe-2t3e3/netdev.c [new file with mode: 0644]

index c070b216e1ac5cf12f6f78f91b5a59ca89a1e163..a3897c52afa06d29ed43046e7a98e2cd0af0d7a5 100644 (file)
@@ -155,5 +155,7 @@ source "drivers/staging/quickstart/Kconfig"
 
 source "drivers/staging/westbridge/Kconfig"
 
+source "drivers/staging/sbe-2t3e3/Kconfig"
+
 endif # !STAGING_EXCLUDE_BUILD
 endif # STAGING
index 90d89ea47b80294b30c788b8442726385af20cb3..3645acf8da835ed7011d10f20a36c2fc1341b5a0 100644 (file)
@@ -58,3 +58,4 @@ obj-$(CONFIG_SOLO6X10)                += solo6x10/
 obj-$(CONFIG_TIDSPBRIDGE)      += tidspbridge/
 obj-$(CONFIG_ACPI_QUICKSTART)  += quickstart/
 obj-$(CONFIG_WESTBRIDGE_ASTORIA)       += westbridge/astoria/
+obj-$(CONFIG_SBE_2T3E3)        += sbe-2t3e3/
diff --git a/drivers/staging/sbe-2t3e3/2t3e3.h b/drivers/staging/sbe-2t3e3/2t3e3.h
new file mode 100644 (file)
index 0000000..fe9f086
--- /dev/null
@@ -0,0 +1,894 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#ifndef T3E3_H
+#define T3E3_H
+
+#include <linux/hdlc.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include "ctrl.h"
+
+/**************************************************************
+ *  21143
+ **************************************************************/
+
+/* CSR */
+#define SBE_2T3E3_21143_REG_BUS_MODE                                   0
+#define SBE_2T3E3_21143_REG_TRANSMIT_POLL_DEMAND                       1
+#define SBE_2T3E3_21143_REG_RECEIVE_POLL_DEMAND                                2
+#define SBE_2T3E3_21143_REG_RECEIVE_LIST_BASE_ADDRESS                  3
+#define SBE_2T3E3_21143_REG_TRANSMIT_LIST_BASE_ADDRESS                 4
+#define SBE_2T3E3_21143_REG_STATUS                                     5
+#define SBE_2T3E3_21143_REG_OPERATION_MODE                             6
+#define SBE_2T3E3_21143_REG_INTERRUPT_ENABLE                           7
+#define SBE_2T3E3_21143_REG_MISSED_FRAMES_AND_OVERFLOW_COUNTER         8
+#define SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT     9
+#define SBE_2T3E3_21143_REG_BOOT_ROM_PROGRAMMING_ADDRESS               10
+#define SBE_2T3E3_21143_REG_GENERAL_PURPOSE_TIMER_AND_INTERRUPT_MITIGATION_CONTROL 11
+#define SBE_2T3E3_21143_REG_SIA_STATUS                                 12
+#define SBE_2T3E3_21143_REG_SIA_CONNECTIVITY                           13
+#define SBE_2T3E3_21143_REG_SIA_TRANSMIT_AND_RECEIVE                   14
+#define SBE_2T3E3_21143_REG_SIA_AND_GENERAL_PURPOSE_PORT               15
+#define SBE_2T3E3_21143_REG_MAX                                                16
+
+/* CSR0 - BUS_MODE */
+#define SBE_2T3E3_21143_VAL_WRITE_AND_INVALIDATE_ENABLE                0x01000000
+#define SBE_2T3E3_21143_VAL_READ_LINE_ENABLE                   0x00800000
+#define SBE_2T3E3_21143_VAL_READ_MULTIPLE_ENABLE               0x00200000
+#define SBE_2T3E3_21143_VAL_TRANSMIT_AUTOMATIC_POLLING_200us   0x00020000
+#define SBE_2T3E3_21143_VAL_TRANSMIT_AUTOMATIC_POLLING_DISABLED        0x00000000
+#define SBE_2T3E3_21143_VAL_CACHE_ALIGNMENT_32                 0x0000c000
+#define SBE_2T3E3_21143_VAL_CACHE_ALIGNMENT_16                 0x00008000
+#define SBE_2T3E3_21143_VAL_CACHE_ALIGNMENT_8                  0x00004000
+#define SBE_2T3E3_21143_VAL_BUS_ARBITRATION_RR                 0x00000002
+#define SBE_2T3E3_21143_VAL_SOFTWARE_RESET                     0x00000001
+
+/* CSR5 - STATUS */
+#define SBE_2T3E3_21143_VAL_GENERAL_PURPOSE_PORT_INTERRUPT     0x04000000
+#define SBE_2T3E3_21143_VAL_ERROR_BITS                         0x03800000
+#define SBE_2T3E3_21143_VAL_PARITY_ERROR                       0x00000000
+#define SBE_2T3E3_21143_VAL_MASTER_ABORT                       0x00800000
+#define SBE_2T3E3_21143_VAL_TARGET_ABORT                       0x01000000
+#define SBE_2T3E3_21143_VAL_TRANSMISSION_PROCESS_STATE         0x00700000
+#define SBE_2T3E3_21143_VAL_TX_STOPPED                         0x00000000
+#define SBE_2T3E3_21143_VAL_TX_SUSPENDED                       0x00600000
+#define SBE_2T3E3_21143_VAL_RECEIVE_PROCESS_STATE              0x000e0000
+#define SBE_2T3E3_21143_VAL_RX_STOPPED                         0x00000000
+#define SBE_2T3E3_21143_VAL_RX_SUSPENDED                       0x000a0000
+#define SBE_2T3E3_21143_VAL_NORMAL_INTERRUPT_SUMMARY           0x00010000
+#define SBE_2T3E3_21143_VAL_ABNORMAL_INTERRUPT_SUMMARY         0x00008000
+#define SBE_2T3E3_21143_VAL_EARLY_RECEIVE_INTERRUPT            0x00004000
+#define SBE_2T3E3_21143_VAL_FATAL_BUS_ERROR                    0x00002000
+#define SBE_2T3E3_21143_VAL_GENERAL_PURPOSE_TIMER_EXPIRED      0x00000800
+#define SBE_2T3E3_21143_VAL_EARLY_TRANSMIT_INTERRUPT           0x00000400
+#define SBE_2T3E3_21143_VAL_RECEIVE_WATCHDOG_TIMEOUT           0x00000200
+#define SBE_2T3E3_21143_VAL_RECEIVE_PROCESS_STOPPED            0x00000100
+#define SBE_2T3E3_21143_VAL_RECEIVE_BUFFER_UNAVAILABLE         0x00000080
+#define SBE_2T3E3_21143_VAL_RECEIVE_INTERRUPT                  0x00000040
+#define SBE_2T3E3_21143_VAL_TRANSMIT_UNDERFLOW                 0x00000020
+#define SBE_2T3E3_21143_VAL_TRANSMIT_JABBER_TIMEOUT            0x00000008
+#define SBE_2T3E3_21143_VAL_TRANSMIT_BUFFER_UNAVAILABLE                0x00000004
+#define SBE_2T3E3_21143_VAL_TRANSMIT_PROCESS_STOPPED           0x00000002
+#define SBE_2T3E3_21143_VAL_TRANSMIT_INTERRUPT                 0x00000001
+
+/* CSR6 - OPERATION_MODE */
+#define SBE_2T3E3_21143_VAL_SPECIAL_CAPTURE_EFFECT_ENABLE      0x80000000
+#define SBE_2T3E3_21143_VAL_RECEIVE_ALL                                0x40000000
+#define SBE_2T3E3_21143_VAL_MUST_BE_ONE                                0x02000000
+#define SBE_2T3E3_21143_VAL_SCRAMBLER_MODE                     0x01000000
+#define SBE_2T3E3_21143_VAL_PCS_FUNCTION                       0x00800000
+#define SBE_2T3E3_21143_VAL_TRANSMIT_THRESHOLD_MODE_10Mbs      0x00400000
+#define SBE_2T3E3_21143_VAL_TRANSMIT_THRESHOLD_MODE_100Mbs     0x00000000
+#define SBE_2T3E3_21143_VAL_STORE_AND_FORWARD                  0x00200000
+#define SBE_2T3E3_21143_VAL_HEARTBEAT_DISABLE                  0x00080000
+#define SBE_2T3E3_21143_VAL_PORT_SELECT                                0x00040000
+#define SBE_2T3E3_21143_VAL_CAPTURE_EFFECT_ENABLE              0x00020000
+#define SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS             0x0000c000
+#define SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_1           0x00000000
+#define SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_2           0x00004000
+#define SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_3           0x00008000
+#define SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_4           0x0000c000
+#define SBE_2T3E3_21143_VAL_TRANSMISSION_START                 0x00002000
+#define SBE_2T3E3_21143_VAL_OPERATING_MODE                     0x00000c00
+#define SBE_2T3E3_21143_VAL_LOOPBACK_OFF                       0x00000000
+#define SBE_2T3E3_21143_VAL_LOOPBACK_EXTERNAL                  0x00000800
+#define SBE_2T3E3_21143_VAL_LOOPBACK_INTERNAL                  0x00000400
+#define SBE_2T3E3_21143_VAL_FULL_DUPLEX_MODE                   0x00000200
+#define SBE_2T3E3_21143_VAL_PASS_ALL_MULTICAST                 0x00000080
+#define SBE_2T3E3_21143_VAL_PROMISCUOUS_MODE                   0x00000040
+#define SBE_2T3E3_21143_VAL_PASS_BAD_FRAMES                    0x00000008
+#define SBE_2T3E3_21143_VAL_RECEIVE_START                      0x00000002
+
+/* CSR7 - INTERRUPT_ENABLE */
+#define SBE_2T3E3_21143_VAL_LINK_CHANGED_ENABLE                        0x08000000
+#define SBE_2T3E3_21143_VAL_GENERAL_PURPOSE_PORT_ENABLE                0x04000000
+#define SBE_2T3E3_21143_VAL_NORMAL_INTERRUPT_SUMMARY_ENABLE    0x00010000
+#define SBE_2T3E3_21143_VAL_ABNORMAL_INTERRUPT_SUMMARY_ENABLE  0x00008000
+#define SBE_2T3E3_21143_VAL_EARLY_RECEIVE_INTERRUPT_ENABLE     0x00004000
+#define SBE_2T3E3_21143_VAL_FATAL_BUS_ERROR_ENABLE             0x00002000
+#define SBE_2T3E3_21143_VAL_LINK_FAIL_ENABLE                   0x00001000
+#define SBE_2T3E3_21143_VAL_GENERAL_PURPOSE_TIMER_ENABLE       0x00000800
+#define SBE_2T3E3_21143_VAL_EARLY_TRANSMIT_INTERRUPT_ENABLE    0x00000400
+#define SBE_2T3E3_21143_VAL_RECEIVE_WATCHDOG_TIMEOUT_ENABLE    0x00000200
+#define SBE_2T3E3_21143_VAL_RECEIVE_STOPPED_ENABLE             0x00000100
+#define SBE_2T3E3_21143_VAL_RECEIVE_BUFFER_UNAVAILABLE_ENABLE  0x00000080
+#define SBE_2T3E3_21143_VAL_RECEIVE_INTERRUPT_ENABLE           0x00000040
+#define SBE_2T3E3_21143_VAL_TRANSMIT_UNDERFLOW_INTERRUPT_ENABLE        0x00000020
+#define SBE_2T3E3_21143_VAL_TRANSMIT_JABBER_TIMEOUT_ENABLE     0x00000008
+#define SBE_2T3E3_21143_VAL_TRANSMIT_BUFFER_UNAVAILABLE_ENABLE 0x00000004
+#define SBE_2T3E3_21143_VAL_TRANSMIT_STOPPED_ENABLE            0x00000002
+#define SBE_2T3E3_21143_VAL_TRANSMIT_INTERRUPT_ENABLE          0x00000001
+
+/* CSR8 - MISSED_FRAMES_AND_OVERFLOW_COUNTER */
+#define SBE_2T3E3_21143_VAL_OVERFLOW_COUNTER_OVERFLOW          0x10000000
+#define SBE_2T3E3_21143_VAL_OVERFLOW_COUNTER                   0x0ffe0000
+#define SBE_2T3E3_21143_VAL_MISSED_FRAME_OVERFLOW              0x00010000
+#define SBE_2T3E3_21143_VAL_MISSED_FRAMES_COUNTER              0x0000ffff
+
+/* CSR9 - BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT */
+#define SBE_2T3E3_21143_VAL_MII_MANAGEMENT_DATA_IN             0x00080000
+#define SBE_2T3E3_21143_VAL_MII_MANAGEMENT_READ_MODE           0x00040000
+#define SBE_2T3E3_21143_VAL_MII_MANAGEMENT_DATA_OUT            0x00020000
+#define SBE_2T3E3_21143_VAL_MII_MANAGEMENT_CLOCK               0x00010000
+#define SBE_2T3E3_21143_VAL_READ_OPERATION                     0x00004000
+#define SBE_2T3E3_21143_VAL_WRITE_OPERATION                    0x00002000
+#define SBE_2T3E3_21143_VAL_BOOT_ROM_SELECT                    0x00001000
+#define SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT                  0x00000800
+#define SBE_2T3E3_21143_VAL_BOOT_ROM_DATA                      0x000000ff
+#define SBE_2T3E3_21143_VAL_SERIAL_ROM_DATA_OUT                        0x00000008
+#define SBE_2T3E3_21143_VAL_SERIAL_ROM_DATA_IN                 0x00000004
+#define SBE_2T3E3_21143_VAL_SERIAL_ROM_CLOCK                   0x00000002
+#define SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT             0x00000001
+
+/* CSR11 - GENERAL_PURPOSE_TIMER_AND_INTERRUPT_MITIGATION_CONTROL */
+#define SBE_2T3E3_21143_VAL_CYCLE_SIZE                         0x80000000
+#define SBE_2T3E3_21143_VAL_TRANSMIT_TIMER                     0x78000000
+#define SBE_2T3E3_21143_VAL_NUMBER_OF_TRANSMIT_PACKETS         0x07000000
+#define SBE_2T3E3_21143_VAL_RECEIVE_TIMER                      0x00f00000
+#define SBE_2T3E3_21143_VAL_NUMBER_OF_RECEIVE_PACKETS          0x000e0000
+#define SBE_2T3E3_21143_VAL_CONTINUOUS_MODE                    0x00010000
+#define SBE_2T3E3_21143_VAL_TIMER_VALUE                                0x0000ffff
+
+/* CSR12 - SIA_STATUS */
+#define SBE_2T3E3_21143_VAL_10BASE_T_RECEIVE_PORT_ACTIVITY     0x00000200
+#define SBE_2T3E3_21143_VAL_AUI_RECEIVE_PORT_ACTIVITY          0x00000100
+#define SBE_2T3E3_21143_VAL_10Mbs_LINK_STATUS                  0x00000004
+#define SBE_2T3E3_21143_VAL_100Mbs_LINK_STATUS                 0x00000002
+#define SBE_2T3E3_21143_VAL_MII_RECEIVE_PORT_ACTIVITY          0x00000001
+
+/* CSR13 - SIA_CONNECTIVITY */
+#define SBE_2T3E3_21143_VAL_10BASE_T_OR_AUI                    0x00000008
+#define SBE_2T3E3_21143_VAL_SIA_RESET                          0x00000001
+
+/* CSR14 - SIA_TRANSMIT_AND_RECEIVE */
+#define SBE_2T3E3_21143_VAL_100BASE_TX_FULL_DUPLEX             0x00020000
+#define SBE_2T3E3_21143_VAL_COLLISION_DETECT_ENABLE            0x00000400
+#define SBE_2T3E3_21143_VAL_COLLISION_SQUELCH_ENABLE           0x00000200
+#define SBE_2T3E3_21143_VAL_RECEIVE_SQUELCH_ENABLE             0x00000100
+#define SBE_2T3E3_21143_VAL_LINK_PULSE_SEND_ENABLE             0x00000004
+#define SBE_2T3E3_21143_VAL_ENCODER_ENABLE                     0x00000001
+
+/* CSR15 - SIA_AND_GENERAL_PURPOSE_PORT */
+#define SBE_2T3E3_21143_VAL_RECEIVE_WATCHDOG_DISABLE           0x00000010
+#define SBE_2T3E3_21143_VAL_AUI_BNC_MODE                       0x00000008
+#define SBE_2T3E3_21143_VAL_HOST_UNJAB                         0x00000002
+#define SBE_2T3E3_21143_VAL_JABBER_DISABLE                     0x00000001
+
+/**************************************************************
+ *  CPLD
+ **************************************************************/
+
+/* reg_map indexes */
+#define SBE_2T3E3_CPLD_REG_PCRA                                0
+#define SBE_2T3E3_CPLD_REG_PCRB                                1
+#define SBE_2T3E3_CPLD_REG_PLCR                                2
+#define SBE_2T3E3_CPLD_REG_PLTR                                3
+#define SBE_2T3E3_CPLD_REG_PPFR                                4
+#define SBE_2T3E3_CPLD_REG_BOARD_ID                    5
+#define SBE_2T3E3_CPLD_REG_FPGA_VERSION                        6
+#define SBE_2T3E3_CPLD_REG_FRAMER_BASE_ADDRESS         7
+#define SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT          8
+#define SBE_2T3E3_CPLD_REG_STATIC_RESET                        9
+#define SBE_2T3E3_CPLD_REG_PULSE_RESET                 10
+#define SBE_2T3E3_CPLD_REG_FPGA_RECONFIGURATION                11
+#define SBE_2T3E3_CPLD_REG_LEDR                                12
+#define SBE_2T3E3_CPLD_REG_PICSR                       13
+#define SBE_2T3E3_CPLD_REG_PIER                                14
+#define SBE_2T3E3_CPLD_REG_PCRC                                15
+#define SBE_2T3E3_CPLD_REG_PBWF                                16
+#define SBE_2T3E3_CPLD_REG_PBWL                                17
+
+#define SBE_2T3E3_CPLD_REG_MAX                         18
+
+/**********/
+
+/* val_map indexes */
+#define SBE_2T3E3_CPLD_VAL_LIU_SELECT                  0
+#define SBE_2T3E3_CPLD_VAL_DAC_SELECT                  1
+#define SBE_2T3E3_CPLD_VAL_LOOP_TIMING_SOURCE          2
+#define SBE_2T3E3_CPLD_VAL_LIU_FRAMER_RESET            3
+
+/* PCRA */
+#define SBE_2T3E3_CPLD_VAL_CRC32                               0x40
+#define SBE_2T3E3_CPLD_VAL_TRANSPARENT_MODE                    0x20
+#define SBE_2T3E3_CPLD_VAL_REAR_PANEL                          0x10
+#define SBE_2T3E3_CPLD_VAL_RAW_MODE                            0x08
+#define SBE_2T3E3_CPLD_VAL_ALT                                 0x04
+#define SBE_2T3E3_CPLD_VAL_LOOP_TIMING                         0x02
+#define SBE_2T3E3_CPLD_VAL_LOCAL_CLOCK_E3                      0x01
+
+/* PCRB */
+#define SBE_2T3E3_CPLD_VAL_PAD_COUNT                           0x30
+#define SBE_2T3E3_CPLD_VAL_PAD_COUNT_1                         0x00
+#define SBE_2T3E3_CPLD_VAL_PAD_COUNT_2                         0x10
+#define SBE_2T3E3_CPLD_VAL_PAD_COUNT_3                         0x20
+#define SBE_2T3E3_CPLD_VAL_PAD_COUNT_4                         0x30
+#define SBE_2T3E3_CPLD_VAL_SCRAMBLER_TYPE                      0x02
+#define SBE_2T3E3_CPLD_VAL_SCRAMBLER_ENABLE                    0x01
+
+/* PCRC */
+#define SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_NONE                        0x00
+#define SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_0                   0x01
+#define SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_1                   0x11
+#define SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_2                   0x21
+
+/* PLTR */
+#define SBE_2T3E3_CPLD_VAL_LCV_COUNTER                         0xff
+
+/* SCSR */
+#define SBE_2T3E3_CPLD_VAL_EEPROM_SELECT                       0x10
+
+/* PICSR */
+#define SBE_2T3E3_CPLD_VAL_LOSS_OF_SIGNAL_THRESHOLD_LEVEL_1    0x80
+#define SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_SIGNAL_CHANGE       0x40
+#define SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_ETHERNET_ASSERTED    0x20
+#define SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_FRAMER_ASSERTED      0x10
+#define SBE_2T3E3_CPLD_VAL_LCV_LIMIT_EXCEEDED                  0x08
+#define SBE_2T3E3_CPLD_VAL_DMO_SIGNAL_DETECTED                 0x04
+#define SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_LOCK_DETECTED       0x02
+#define SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_SIGNAL_DETECTED     0x01
+
+/* PIER */
+#define SBE_2T3E3_CPLD_VAL_RECEIVE_LOS_CHANGE_ENABLE           0x40
+#define SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_ETHERNET_ENABLE      0x20
+#define SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_FRAMER_ENABLE                0x10
+#define SBE_2T3E3_CPLD_VAL_LCV_INTERRUPT_ENABLE                        0x08
+#define SBE_2T3E3_CPLD_VAL_DMO_ENABLE                          0x04
+#define SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_LOCK_ENABLE         0x02
+#define SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_SIGNAL_ENABLE       0x01
+
+/**************************************************************
+ *  Framer
+ **************************************************************/
+
+/* reg_map indexes */
+/* common */
+#define SBE_2T3E3_FRAMER_REG_OPERATING_MODE                            0
+#define SBE_2T3E3_FRAMER_REG_IO_CONTROL                                        1
+#define SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_ENABLE                    2
+#define SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_STATUS                    3
+#define SBE_2T3E3_FRAMER_REG_PMON_LCV_EVENT_COUNT_MSB                  28
+#define SBE_2T3E3_FRAMER_REG_PMON_LCV_EVENT_COUNT_LSB                  29
+#define SBE_2T3E3_FRAMER_REG_PMON_FRAMING_BIT_ERROR_EVENT_COUNT_MSB    30
+#define SBE_2T3E3_FRAMER_REG_PMON_FRAMING_BIT_ERROR_EVENT_COUNT_LSB    31
+#define SBE_2T3E3_FRAMER_REG_PMON_PARITY_ERROR_EVENT_COUNT_MSB         32
+#define SBE_2T3E3_FRAMER_REG_PMON_PARITY_ERROR_EVENT_COUNT_LSB         33
+#define SBE_2T3E3_FRAMER_REG_PMON_FEBE_EVENT_COUNT_MSB                 34
+#define SBE_2T3E3_FRAMER_REG_PMON_FEBE_EVENT_COUNT_LSB                 35
+#define SBE_2T3E3_FRAMER_REG_PMON_CP_BIT_ERROR_EVENT_COUNT_MSB         36
+#define SBE_2T3E3_FRAMER_REG_PMON_CP_BIT_ERROR_EVENT_COUNT_LSB         37
+#define SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER                     38
+#define SBE_2T3E3_FRAMER_REG_ONE_SECOND_ERROR_STATUS                   39
+#define SBE_2T3E3_FRAMER_REG_LCV_ONE_SECOND_ACCUMULATOR_MSB            40
+#define SBE_2T3E3_FRAMER_REG_LCV_ONE_SECOND_ACCUMULATOR_LSB            41
+#define SBE_2T3E3_FRAMER_REG_FRAME_PARITY_ERROR_ONE_SECOND_ACCUMULATOR_MSB  42
+#define SBE_2T3E3_FRAMER_REG_FRAME_PARITY_ERROR_ONE_SECOND_ACCUMULATOR_LSB  43
+#define SBE_2T3E3_FRAMER_REG_FRAME_CP_BIT_ERROR_ONE_SECOND_ACCUMULATOR_MSB  44
+#define SBE_2T3E3_FRAMER_REG_FRAME_CP_BIT_ERROR_ONE_SECOND_ACCUMULATOR_LSB  45
+#define SBE_2T3E3_FRAMER_REG_LINE_INTERFACE_DRIVE                      46
+#define SBE_2T3E3_FRAMER_REG_LINE_INTERFACE_SCAN                       47
+
+/* T3 */
+#define SBE_2T3E3_FRAMER_REG_T3_RX_CONFIGURATION_STATUS                        4
+#define SBE_2T3E3_FRAMER_REG_T3_RX_STATUS                              5
+#define SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_ENABLE                    6
+#define SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_STATUS                    7
+#define SBE_2T3E3_FRAMER_REG_T3_RX_SYNC_DETECT_ENABLE                  8
+#define SBE_2T3E3_FRAMER_REG_T3_RX_FEAC                                        10
+#define SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS                11
+#define SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL                                12
+#define SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_STATUS                         13
+#define SBE_2T3E3_FRAMER_REG_T3_TX_CONFIGURATION                       16
+#define SBE_2T3E3_FRAMER_REG_T3_TX_FEAC_CONFIGURATION_STATUS           17
+#define SBE_2T3E3_FRAMER_REG_T3_TX_FEAC                                        18
+#define SBE_2T3E3_FRAMER_REG_T3_TX_LAPD_CONFIGURATION                  19
+#define SBE_2T3E3_FRAMER_REG_T3_TX_LAPD_STATUS                         20
+#define SBE_2T3E3_FRAMER_REG_T3_TX_MBIT_MASK                           21
+#define SBE_2T3E3_FRAMER_REG_T3_TX_FBIT_MASK                           22
+#define SBE_2T3E3_FRAMER_REG_T3_TX_FBIT_MASK_2                         23
+#define SBE_2T3E3_FRAMER_REG_T3_TX_FBIT_MASK_3                         24
+
+/* E3 */
+#define SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_1              4
+#define SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_2              5
+#define SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_1                  6
+#define SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_2                  7
+#define SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_1                  8
+#define SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_2                  9
+#define SBE_2T3E3_FRAMER_REG_E3_RX_LAPD_CONTROL                                12
+#define SBE_2T3E3_FRAMER_REG_E3_RX_LAPD_STATUS                         13
+#define SBE_2T3E3_FRAMER_REG_E3_RX_NR_BYTE                             14
+#define SBE_2T3E3_FRAMER_REG_E3_RX_SERVICE_BITS                                14
+#define SBE_2T3E3_FRAMER_REG_E3_RX_GC_BYTE                             15
+#define SBE_2T3E3_FRAMER_REG_E3_TX_CONFIGURATION                       16
+#define SBE_2T3E3_FRAMER_REG_E3_TX_LAPD_CONFIGURATION                  19
+#define SBE_2T3E3_FRAMER_REG_E3_TX_LAPD_STATUS                         19
+#define SBE_2T3E3_FRAMER_REG_E3_TX_GC_BYTE                             21
+#define SBE_2T3E3_FRAMER_REG_E3_TX_SERVICE_BITS                                21
+#define SBE_2T3E3_FRAMER_REG_E3_TX_MA_BYTE                             22
+#define SBE_2T3E3_FRAMER_REG_E3_TX_NR_BYTE                             23
+#define SBE_2T3E3_FRAMER_REG_E3_TX_FA1_ERROR_MASK                      25
+#define SBE_2T3E3_FRAMER_REG_E3_TX_FAS_ERROR_MASK_UPPER                        25
+#define SBE_2T3E3_FRAMER_REG_E3_TX_FA2_ERROR_MASK                      26
+#define SBE_2T3E3_FRAMER_REG_E3_TX_FAS_ERROR_MASK_LOWER                        26
+#define SBE_2T3E3_FRAMER_REG_E3_TX_BIP8_MASK                           27
+#define SBE_2T3E3_FRAMER_REG_E3_TX_BIP4_MASK                           27
+
+#define SBE_2T3E3_FRAMER_REG_MAX                                       48
+
+/**********/
+
+/* OPERATING_MODE */
+#define SBE_2T3E3_FRAMER_VAL_LOCAL_LOOPBACK_MODE               0x80
+#define SBE_2T3E3_FRAMER_VAL_T3_E3_SELECT                      0x40
+#define SBE_2T3E3_FRAMER_VAL_INTERNAL_LOS_ENABLE               0x20
+#define SBE_2T3E3_FRAMER_VAL_RESET                             0x10
+#define SBE_2T3E3_FRAMER_VAL_INTERRUPT_ENABLE_RESET            0x08
+#define SBE_2T3E3_FRAMER_VAL_FRAME_FORMAT_SELECT               0x04
+#define SBE_2T3E3_FRAMER_VAL_TIMING_ASYNCH_TXINCLK             0x03
+#define SBE_2T3E3_FRAMER_VAL_E3_G751                           0x00
+#define SBE_2T3E3_FRAMER_VAL_E3_G832                           0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_CBIT                           0x40
+#define SBE_2T3E3_FRAMER_VAL_T3_M13                            0x44
+#define SBE_2T3E3_FRAMER_VAL_LOOPBACK_ON                       0x80
+#define SBE_2T3E3_FRAMER_VAL_LOOPBACK_OFF                      0x00
+
+/* IO_CONTROL */
+#define SBE_2T3E3_FRAMER_VAL_DISABLE_TX_LOSS_OF_CLOCK          0x80
+#define SBE_2T3E3_FRAMER_VAL_LOSS_OF_CLOCK_STATUS              0x40
+#define SBE_2T3E3_FRAMER_VAL_DISABLE_RX_LOSS_OF_CLOCK          0x20
+#define SBE_2T3E3_FRAMER_VAL_AMI_LINE_CODE                     0x10
+#define SBE_2T3E3_FRAMER_VAL_UNIPOLAR                          0x08
+#define SBE_2T3E3_FRAMER_VAL_TX_LINE_CLOCK_INVERT              0x04
+#define SBE_2T3E3_FRAMER_VAL_RX_LINE_CLOCK_INVERT              0x02
+#define SBE_2T3E3_FRAMER_VAL_REFRAME                           0x01
+
+/* BLOCK_INTERRUPT_ENABLE */
+#define SBE_2T3E3_FRAMER_VAL_RX_INTERRUPT_ENABLE               0x80
+#define SBE_2T3E3_FRAMER_VAL_TX_INTERRUPT_ENABLE               0x02
+#define SBE_2T3E3_FRAMER_VAL_ONE_SECOND_INTERRUPT_ENABLE       0x01
+
+/* BLOCK_INTERRUPT_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_RX_INTERRUPT_STATUS               0x80
+#define SBE_2T3E3_FRAMER_VAL_TX_INTERRUPT_STATUS               0x02
+#define SBE_2T3E3_FRAMER_VAL_ONE_SECOND_INTERRUPT_STATUS       0x01
+
+/**********/
+
+/* T3_RX_CONFIGURATION_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_AIS                         0x80
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_LOS                         0x40
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE                                0x20
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_OOF                         0x10
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FRAMING_ON_PARITY           0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_F_SYNC_ALGO                 0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_M_SYNC_ALGO                 0x01
+
+/* T3_RX_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FERF                                0x10
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_AIC                         0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FEBE                                0x07
+
+/* T3_RX_INTERRUPT_ENABLE */
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_CP_BIT_ERROR_INTERRUPT_ENABLE 0x80
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_ENABLE                0x40
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_AIS_INTERRUPT_ENABLE                0x20
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE_INTERRUPT_ENABLE       0x10
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FERF_INTERRUPT_ENABLE       0x08
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_AIC_INTERRUPT_ENABLE                0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_ENABLE                0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_P_BIT_INTERRUPT_ENABLE      0x01
+
+/* T3_RX_INTERRUPT_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_CP_BIT_ERROR_INTERRUPT_STATUS 0x80
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_STATUS                0x40
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_AIS_INTERRUPT_STATUS                0x20
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE_INTERRUPT_STATUS       0x10
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FERF_INTERRUPT_STATUS       0x08
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_AIC_INTERRUPT_STATUS                0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_STATUS                0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_P_BIT_INTERRUPT_STATUS      0x01
+
+/* T3_RX_FEAC_INTERRUPT_ENABLE_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_VALID                  0x10
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_REMOVE_INTERRUPT_ENABLE        0x08
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_REMOVE_INTERRUPT_STATUS        0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_VALID_INTERRUPT_ENABLE 0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_VALID_INTERRUPT_STATUS 0x01
+
+/* T3_RX_LAPD_CONTROL */
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_LAPD_ENABLE                 0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_LAPD_INTERRUPT_ENABLE       0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_LAPD_INTERRUPT_STATUS       0x01
+
+/* T3_RX_LAPD_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_ABORT                       0x40
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_LAPD_TYPE                   0x30
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_CR_TYPE                     0x08
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FCS_ERROR                   0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_END_OF_MESSAGE              0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_RX_FLAG_PRESENT                        0x01
+
+/* T3_TX_CONFIGURATION */
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_YELLOW_ALARM                        0x80
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_X_BIT                       0x40
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_IDLE                                0x20
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_AIS                         0x10
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_LOS                         0x08
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FERF_ON_LOS                 0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FERF_ON_OOF                 0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FERF_ON_AIS                 0x01
+
+/* T3_TX_FEAC_CONFIGURATION_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FEAC_INTERRUPT_ENABLE       0x10
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FEAC_INTERRUPT_STATUS       0x08
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FEAC_ENABLE                 0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FEAC_GO                     0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_FEAC_BUSY                   0x01
+
+/* T3_TX_LAPD_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_DL_START                    0x08
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_DL_BUSY                     0x04
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_LAPD_INTERRUPT_ENABLE       0x02
+#define SBE_2T3E3_FRAMER_VAL_T3_TX_LAPD_INTERRUPT_STATUS       0x01
+
+/**********/
+
+/* E3_RX_CONFIGURATION_STATUS_1 */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_PAYLOAD_TYPE                        0xe0
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FERF_ALGO                   0x10
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_T_MARK_ALGO                 0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_PAYLOAD_EXPECTED            0x07
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_BIP4                                0x01
+
+/* E3_RX_CONFIGURATION_STATUS_2 */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LOF_ALGO                    0x80
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LOF                         0x40
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_OOF                         0x20
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LOS                         0x10
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_AIS                         0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_PAYLOAD_UNSTABLE            0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_T_MARK                      0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FERF                                0x01
+
+/* E3_RX_INTERRUPT_ENABLE_1 */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_COFA_INTERRUPT_ENABLE       0x10
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_ENABLE                0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LOF_INTERRUPT_ENABLE                0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_ENABLE                0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_AIS_INTERRUPT_ENABLE                0x01
+
+/* E3_RX_INTERRUPT_ENABLE_2 */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_TTB_CHANGE_INTERRUPT_ENABLE 0x40
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FEBE_INTERRUPT_ENABLE       0x10
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FERF_INTERRUPT_ENABLE       0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_BIP8_ERROR_INTERRUPT_ENABLE 0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_BIP4_ERROR_INTERRUPT_ENABLE 0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FRAMING_BYTE_ERROR_INTERRUPT_ENABLE 0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_PAYLOAD_MISMATCH_INTERRUPT_ENABLE 0x01
+
+/* E3_RX_INTERRUPT_STATUS_1 */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_COFA_INTERRUPT_STATUS       0x10
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_STATUS                0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LOF_INTERRUPT_STATUS                0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_STATUS                0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_AIS_INTERRUPT_STATUS                0x01
+
+/* E3_RX_INTERRUPT_STATUS_2 */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_TTB_CHANGE_INTERRUPT_STATUS 0x40
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FEBE_INTERRUPT_STATUS       0x10
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FERF_INTERRUPT_STATUS       0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_BIP8_ERROR_INTERRUPT_STATUS 0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_BIP4_ERROR_INTERRUPT_STATUS 0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FRAMING_BYTE_ERROR_INTERRUPT_STATUS 0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_PAYLOAD_MISMATCH_INTERRUPT_STATUS 0x01
+
+/* E3_RX_LAPD_CONTROL */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_DL_FROM_NR                  0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LAPD_ENABLE                 0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LAPD_INTERRUPT_ENABLE       0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LAPD_INTERRUPT_STATUS       0x01
+
+/* E3_RX_LAPD_STATUS */
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_ABORT                       0x40
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_LAPD_TYPE                   0x30
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_CR_TYPE                     0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FCS_ERROR                   0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_END_OF_MESSAGE              0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_RX_FLAG_PRESENT                        0x01
+
+/* E3_TX_CONFIGURATION */
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_BIP4_ENABLE                 0x80
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_A_SOURCE_SELECT             0x60
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_DL_IN_NR                    0x10
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_N_SOURCE_SELECT             0x18
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_AIS_ENABLE                  0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_LOS_ENABLE                  0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_MA_RX                       0x01
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_FAS_SOURCE_SELECT           0x01
+
+/* E3_TX_LAPD_CONFIGURATION */
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_AUTO_RETRANSMIT             0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_LAPD_MESSAGE_LENGTH         0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_LAPD_ENABLE                 0x01
+
+/* E3_TX_LAPD_STATUS_INTERRUPT */
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_DL_START                    0x08
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_DL_BUSY                     0x04
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_LAPD_INTERRUPT_ENABLE       0x02
+#define SBE_2T3E3_FRAMER_VAL_E3_TX_LAPD_INTERRUPT_STATUS       0x01
+
+
+
+
+
+
+/**************************************************************
+ *  LIU
+ **************************************************************/
+
+/* reg_map indexes */
+#define SBE_2T3E3_LIU_REG_REG0                 0
+#define SBE_2T3E3_LIU_REG_REG1                 1
+#define SBE_2T3E3_LIU_REG_REG2                 2
+#define SBE_2T3E3_LIU_REG_REG3                 3
+#define SBE_2T3E3_LIU_REG_REG4                 4
+
+#define        SBE_2T3E3_LIU_REG_MAX                   5
+
+/**********/
+
+/* REG0 */
+#define SBE_2T3E3_LIU_VAL_RECEIVE_LOSS_OF_LOCK_STATUS          0x10
+#define SBE_2T3E3_LIU_VAL_RECEIVE_LOSS_OF_SIGNAL_STATUS                0x08
+#define SBE_2T3E3_LIU_VAL_ANALOG_LOSS_OF_SIGNAL_STATUS         0x04
+#define SBE_2T3E3_LIU_VAL_DIGITAL_LOSS_OF_SIGNAL_STATUS                0x02
+#define SBE_2T3E3_LIU_VAL_DMO_STATUS                           0x01
+
+/* REG1 */
+#define SBE_2T3E3_LIU_VAL_TRANSMITTER_OFF                      0x10
+#define SBE_2T3E3_LIU_VAL_TRANSMIT_ALL_ONES                    0x08
+#define SBE_2T3E3_LIU_VAL_TRANSMIT_CLOCK_INVERT                        0x04
+#define SBE_2T3E3_LIU_VAL_TRANSMIT_LEVEL_SELECT                        0x02
+#define SBE_2T3E3_LIU_VAL_TRANSMIT_BINARY_DATA                 0x01
+
+/* REG2 */
+#define SBE_2T3E3_LIU_VAL_DECODER_DISABLE                      0x10
+#define SBE_2T3E3_LIU_VAL_ENCODER_DISABLE                      0x08
+#define SBE_2T3E3_LIU_VAL_ANALOG_LOSS_OF_SIGNAL_DISABLE                0x04
+#define SBE_2T3E3_LIU_VAL_DIGITAL_LOSS_OF_SIGNAL_DISABLE       0x02
+#define SBE_2T3E3_LIU_VAL_RECEIVE_EQUALIZATION_DISABLE         0x01
+
+/* REG3 */
+#define SBE_2T3E3_LIU_VAL_RECEIVE_BINARY_DATA                  0x10
+#define SBE_2T3E3_LIU_VAL_RECOVERED_DATA_MUTING                        0x08
+#define SBE_2T3E3_LIU_VAL_RECEIVE_CLOCK_OUTPUT_2               0x04
+#define SBE_2T3E3_LIU_VAL_INVERT_RECEIVE_CLOCK_2               0x02
+#define SBE_2T3E3_LIU_VAL_INVERT_RECEIVE_CLOCK_1               0x01
+
+/* REG4 */
+#define SBE_2T3E3_LIU_VAL_T3_MODE_SELECT                       0x00
+#define SBE_2T3E3_LIU_VAL_E3_MODE_SELECT                       0x04
+#define SBE_2T3E3_LIU_VAL_LOCAL_LOOPBACK                       0x02
+#define SBE_2T3E3_LIU_VAL_REMOTE_LOOPBACK                      0x01
+#define SBE_2T3E3_LIU_VAL_LOOPBACK_OFF                         0x00
+#define SBE_2T3E3_LIU_VAL_LOOPBACK_REMOTE                      0x01
+#define SBE_2T3E3_LIU_VAL_LOOPBACK_ANALOG                      0x02
+#define SBE_2T3E3_LIU_VAL_LOOPBACK_DIGITAL                     0x03
+
+/**********************************************************************
+ *
+ * descriptor list and data buffer
+ *
+ **********************************************************************/
+typedef struct {
+       u32 rdes0;
+       u32 rdes1;
+       u32 rdes2;
+       u32 rdes3;
+} t3e3_rx_desc_t;
+
+#define SBE_2T3E3_RX_DESC_RING_SIZE                    64
+
+/* RDES0 */
+#define SBE_2T3E3_RX_DESC_21143_OWN                    0X80000000
+#define SBE_2T3E3_RX_DESC_FRAME_LENGTH                 0x3fff0000
+#define SBE_2T3E3_RX_DESC_FRAME_LENGTH_SHIFT           16
+#define SBE_2T3E3_RX_DESC_ERROR_SUMMARY                        0x00008000
+#define SBE_2T3E3_RX_DESC_DESC_ERROR                   0x00004000
+#define SBE_2T3E3_RX_DESC_DATA_TYPE                    0x00003000
+#define SBE_2T3E3_RX_DESC_RUNT_FRAME                   0x00000800
+#define SBE_2T3E3_RX_DESC_FIRST_DESC                   0x00000200
+#define SBE_2T3E3_RX_DESC_LAST_DESC                    0x00000100
+#define SBE_2T3E3_RX_DESC_FRAME_TOO_LONG               0x00000080
+#define SBE_2T3E3_RX_DESC_COLLISION_SEEN               0x00000040
+#define SBE_2T3E3_RX_DESC_FRAME_TYPE                   0x00000020
+#define SBE_2T3E3_RX_DESC_RECEIVE_WATCHDOG             0x00000010
+#define SBE_2T3E3_RX_DESC_MII_ERROR                    0x00000008
+#define SBE_2T3E3_RX_DESC_DRIBBLING_BIT                        0x00000004
+#define SBE_2T3E3_RX_DESC_CRC_ERROR                    0x00000002
+
+/* RDES1 */
+#define SBE_2T3E3_RX_DESC_END_OF_RING                  0x02000000
+#define SBE_2T3E3_RX_DESC_SECOND_ADDRESS_CHAINED       0x01000000
+#define SBE_2T3E3_RX_DESC_BUFFER_2_SIZE                        0x003ff800
+#define SBE_2T3E3_RX_DESC_BUFFER_1_SIZE                        0x000007ff
+
+/*********************/
+
+typedef struct {
+       u32 tdes0;
+       u32 tdes1;
+       u32 tdes2;
+       u32 tdes3;
+} t3e3_tx_desc_t;
+
+#define SBE_2T3E3_TX_DESC_RING_SIZE                    256
+
+/* TDES0 */
+#define SBE_2T3E3_TX_DESC_21143_OWN                    0x80000000
+#define SBE_2T3E3_TX_DESC_ERROR_SUMMARY                        0x00008000
+#define SBE_2T3E3_TX_DESC_TRANSMIT_JABBER_TIMEOUT      0x00004000
+#define SBE_2T3E3_TX_DESC_LOSS_OF_CARRIER              0x00000800
+#define SBE_2T3E3_TX_DESC_NO_CARRIER                   0x00000400
+#define SBE_2T3E3_TX_DESC_LINK_FAIL_REPORT             0x00000004
+#define SBE_2T3E3_TX_DESC_UNDERFLOW_ERROR              0x00000002
+#define SBE_2T3E3_TX_DESC_DEFFERED                     0x00000001
+
+/* TDES1 */
+#define SBE_2T3E3_TX_DESC_INTERRUPT_ON_COMPLETION      0x80000000
+#define SBE_2T3E3_TX_DESC_LAST_SEGMENT                 0x40000000
+#define SBE_2T3E3_TX_DESC_FIRST_SEGMENT                        0x20000000
+#define SBE_2T3E3_TX_DESC_CRC_DISABLE                  0x04000000
+#define SBE_2T3E3_TX_DESC_END_OF_RING                  0x02000000
+#define SBE_2T3E3_TX_DESC_SECOND_ADDRESS_CHAINED       0x01000000
+#define SBE_2T3E3_TX_DESC_DISABLE_PADDING              0x00800000
+#define SBE_2T3E3_TX_DESC_BUFFER_2_SIZE                        0x003ff800
+#define SBE_2T3E3_TX_DESC_BUFFER_1_SIZE                        0x000007ff
+
+
+#define SBE_2T3E3_MTU                                  1600
+#define SBE_2T3E3_CRC16_LENGTH                         2
+#define SBE_2T3E3_CRC32_LENGTH                         4
+
+#define MCLBYTES (SBE_2T3E3_MTU + 128)
+
+struct channel {
+       struct pci_dev *pdev;
+       struct net_device *dev;
+       struct card *card;
+       unsigned long addr;     /* DECchip */
+
+       int leds;
+
+       /* pci specific */
+       struct {
+               u32 slot;           /* should be 0 or 1 */
+               u32 command;
+               u8 cache_size;
+       } h;
+
+       /* statistics */
+       t3e3_stats_t s;
+
+       /* running */
+       struct {
+               u32 flags;
+       } r;
+
+       /* parameters */
+       t3e3_param_t p;
+
+       u32 liu_regs[SBE_2T3E3_LIU_REG_MAX];       /* LIU registers */
+       u32 framer_regs[SBE_2T3E3_FRAMER_REG_MAX]; /* Framer registers */
+
+       /* Ethernet Controller */
+       struct {
+               u_int16_t card_serial_number[3];
+
+               u32 reg[SBE_2T3E3_21143_REG_MAX]; /* registers i.e. CSR */
+
+               u32 interrupt_enable_mask;
+
+               /* receive chain/ring */
+               t3e3_rx_desc_t *rx_ring;
+               struct sk_buff *rx_data[SBE_2T3E3_RX_DESC_RING_SIZE];
+               u32 rx_ring_current_read;
+
+               /* transmit chain/ring */
+               t3e3_tx_desc_t *tx_ring;
+               struct sk_buff *tx_data[SBE_2T3E3_TX_DESC_RING_SIZE];
+               u32 tx_ring_current_read;
+               u32 tx_ring_current_write;
+               int tx_full;
+               int tx_free_cnt;
+               spinlock_t tx_lock;
+       } ether;
+
+       int32_t interrupt_active;
+       int32_t rcv_count;
+};
+
+struct card {
+       spinlock_t bootrom_lock;
+       unsigned long bootrom_addr;
+       struct timer_list timer; /* for updating LEDs */
+       struct channel channels[0];
+};
+
+#define SBE_2T3E3_FLAG_NETWORK_UP              0x00000001
+#define SBE_2T3E3_FLAG_NO_ERROR_MESSAGES       0x00000002
+
+extern const u32 cpld_reg_map[][2];
+extern const u32 cpld_val_map[][2];
+extern const u32 t3e3_framer_reg_map[];
+extern const u32 t3e3_liu_reg_map[];
+
+void t3e3_init(struct channel *);
+void t3e3_if_up(struct channel *);
+void t3e3_if_down(struct channel *);
+int t3e3_if_start_xmit(struct sk_buff *skb, struct net_device *dev);
+void t3e3_if_config(struct channel *, u32, char *,
+                   t3e3_resp_t *, int *);
+void t3e3_set_frame_type(struct channel *, u32);
+u32 t3e3_eeprom_read_word(struct channel *, u32);
+void t3e3_read_card_serial_number(struct channel *);
+
+/* interrupt handlers */
+irqreturn_t t3e3_intr(int irq, void *dev_instance);
+void dc_intr(struct channel *);
+void dc_intr_rx(struct channel *);
+void dc_intr_tx(struct channel *);
+void dc_intr_tx_underflow(struct channel *);
+void exar7250_intr(struct channel *);
+void exar7250_E3_intr(struct channel *, u32);
+void exar7250_T3_intr(struct channel *, u32);
+
+/* Ethernet controller */
+u32 bootrom_read(struct channel *, u32);
+void bootrom_write(struct channel *, u32, u32);
+void dc_init(struct channel *);
+void dc_start(struct channel *);
+void dc_stop(struct channel *);
+void dc_start_intr(struct channel *);
+void dc_stop_intr(struct channel *);
+void dc_reset(struct channel *);
+void dc_restart(struct channel *);
+void dc_receiver_onoff(struct channel *, u32);
+void dc_transmitter_onoff(struct channel *, u32);
+void dc_set_loopback(struct channel *, u32);
+u32 dc_init_descriptor_list(struct channel *);
+void dc_clear_descriptor_list(struct channel *);
+void dc_drop_descriptor_list(struct channel *);
+void dc_set_output_port(struct channel *);
+void t3e3_sc_init(struct channel *);
+
+/* CPLD */
+void cpld_init(struct channel *sc);
+u32 cpld_read(struct channel *sc, u32 reg);
+void cpld_set_crc(struct channel *, u32);
+void cpld_start_intr(struct channel *);
+void cpld_stop_intr(struct channel *);
+#if 0
+void cpld_led_onoff(struct channel *, u32, u32, u32, u32);
+#endif
+void cpld_set_clock(struct channel *sc, u32 mode);
+void cpld_set_scrambler(struct channel *, u32);
+void cpld_select_panel(struct channel *, u32);
+void cpld_set_frame_mode(struct channel *, u32);
+void cpld_set_frame_type(struct channel *, u32);
+void cpld_set_pad_count(struct channel *, u32);
+void cpld_set_fractional_mode(struct channel *, u32, u32, u32);
+void cpld_LOS_update(struct channel *);
+
+/* Framer */
+extern u32 exar7250_read(struct channel *, u32);
+extern void exar7250_write(struct channel *, u32, u32);
+void exar7250_init(struct channel *);
+void exar7250_start_intr(struct channel *, u32);
+void exar7250_stop_intr(struct channel *, u32);
+void exar7250_set_frame_type(struct channel *, u32);
+void exar7250_set_loopback(struct channel *, u32);
+void exar7250_unipolar_onoff(struct channel *, u32);
+
+/* LIU */
+u32 exar7300_read(struct channel *, u32);
+void exar7300_write(struct channel *, u32, u32);
+void exar7300_init(struct channel *);
+void exar7300_line_build_out_onoff(struct channel *, u32);
+void exar7300_set_frame_type(struct channel *, u32);
+void exar7300_set_loopback(struct channel *, u32);
+void exar7300_transmit_all_ones_onoff(struct channel *, u32);
+void exar7300_receive_equalization_onoff(struct channel *, u32);
+void exar7300_unipolar_onoff(struct channel *, u32);
+
+void update_led(struct channel *, int);
+int setup_device(struct net_device *dev, struct channel *sc);
+
+static inline int has_two_ports(struct pci_dev *pdev)
+{
+       return pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_2T3E3_P0;
+}
+
+#define dev_to_priv(dev) (*(struct channel **) ((hdlc_device*)(dev) + 1))
+
+static inline u32 dc_read(unsigned long addr, u32 reg)
+{
+       return inl(addr + (reg << 3));
+}
+
+static inline void dc_write(unsigned long addr, u32 reg, u32 val)
+{
+       outl(val, addr + (reg << 3));
+}
+
+static inline void dc_set_bits(unsigned long addr, u32 reg, u32 bits)
+{
+       dc_write(addr, reg, dc_read(addr, reg) | bits);
+}
+
+static inline void dc_clear_bits(unsigned long addr, u32 reg, u32 bits)
+{
+       dc_write(addr, reg, dc_read(addr, reg) & ~bits);
+}
+
+#define CPLD_MAP_REG(reg, sc)  (cpld_reg_map[(reg)][(sc)->h.slot])
+
+static inline void cpld_write(struct channel *channel, unsigned reg, u32 val)
+{
+       unsigned long flags;
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+       bootrom_write(channel, CPLD_MAP_REG(reg, channel), val);
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+}
+
+#define exar7250_set_bit(sc, reg, bit)                 \
+       exar7250_write((sc), (reg),                     \
+                      exar7250_read(sc, reg) | (bit))
+
+#define exar7250_clear_bit(sc, reg, bit)               \
+       exar7250_write((sc), (reg),                     \
+                      exar7250_read(sc, reg) & ~(bit))
+
+#define exar7300_set_bit(sc, reg, bit)                 \
+       exar7300_write((sc), (reg),                     \
+                      exar7300_read(sc, reg) | (bit))
+
+#define exar7300_clear_bit(sc, reg, bit)               \
+       exar7300_write((sc), (reg),                     \
+                      exar7300_read(sc, reg) & ~(bit))
+
+
+#endif /* T3E3_H */
diff --git a/drivers/staging/sbe-2t3e3/Kconfig b/drivers/staging/sbe-2t3e3/Kconfig
new file mode 100644 (file)
index 0000000..8ec86cf
--- /dev/null
@@ -0,0 +1,13 @@
+config SBE_2T3E3
+       tristate "SBE wanPMC-2T3E3 support"
+       depends on HDLC && PCI
+       help
+         Driver for wanPMC-2T3E3 cards by SBE Inc.
+
+         If you have such a card, say Y here and see
+         <http://www.kernel.org/pub/linux/utils/net/hdlc/>.
+
+         To compile this as a module, choose M here: the
+         module will be called sbe-2t3e3.
+
+         If unsure, say N.
diff --git a/drivers/staging/sbe-2t3e3/Makefile b/drivers/staging/sbe-2t3e3/Makefile
new file mode 100644 (file)
index 0000000..2c7b097
--- /dev/null
@@ -0,0 +1,4 @@
+obj-$(CONFIG_SBE_2T3E3) += sbe-2t3e3.o
+
+sbe-2t3e3-objs := module.o netdev.o maps.o     \
+       main.o cpld.o intr.o ctrl.o io.o dc.o exar7250.o exar7300.o
diff --git a/drivers/staging/sbe-2t3e3/TODO b/drivers/staging/sbe-2t3e3/TODO
new file mode 100644 (file)
index 0000000..624b20f
--- /dev/null
@@ -0,0 +1,6 @@
+TODO:
+       - additional cleaning and tests
+       - wait for the new configuration interface in generic HDLC layer and
+         when available, convert the driver to it
+
+Please send patches to Krzysztof Halasa <khc@pm.waw.pl>.
\ No newline at end of file
diff --git a/drivers/staging/sbe-2t3e3/cpld.c b/drivers/staging/sbe-2t3e3/cpld.c
new file mode 100644 (file)
index 0000000..b0fc2dd
--- /dev/null
@@ -0,0 +1,366 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/delay.h>
+#include "2t3e3.h"
+#include "ctrl.h"
+
+#define bootrom_set_bit(sc, reg, bit)                          \
+       bootrom_write((sc), (reg),                              \
+                     bootrom_read((sc), (reg)) | (bit))
+
+#define bootrom_clear_bit(sc, reg, bit)                                \
+       bootrom_write((sc), (reg),                              \
+                     bootrom_read((sc), (reg)) & ~(bit))
+
+static inline void cpld_set_bit(struct channel *channel, unsigned reg, u32 bit)
+{
+       unsigned long flags;
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+       bootrom_set_bit(channel, CPLD_MAP_REG(reg, channel), bit);
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+}
+
+static inline void cpld_clear_bit(struct channel *channel, unsigned reg, u32 bit)
+{
+       unsigned long flags;
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+       bootrom_clear_bit(channel, CPLD_MAP_REG(reg, channel), bit);
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+}
+
+void cpld_init(struct channel *sc)
+{
+       u32 val;
+#if 0
+       /* reset LIU and Framer */
+       val = cpld_val_map[SBE_2T3E3_CPLD_VAL_LIU_FRAMER_RESET][sc->h.slot];
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_STATIC_RESET, val);
+       udelay(10000); /* TODO - how long? */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_STATIC_RESET, val);
+#endif
+
+       /* PCRA */
+       val = SBE_2T3E3_CPLD_VAL_CRC32 |
+               cpld_val_map[SBE_2T3E3_CPLD_VAL_LOOP_TIMING_SOURCE][sc->h.slot];
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PCRA, val);
+
+       /* PCRB */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PCRB, val);
+
+       /* PCRC */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PCRC, val);
+
+       /* PBWF */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PBWF, val);
+
+       /* PBWL */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PBWL, val);
+
+       /* PLTR */
+       val = SBE_2T3E3_CPLD_VAL_LCV_COUNTER;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PLTR, val);
+       udelay(1000);
+
+       /* PLCR */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PLCR, val);
+       udelay(1000);
+
+       /* PPFR */
+       val = 0x55;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PPFR, val);
+       /* TODO: this doesn't work!!! */
+
+       /* SERIAL_CHIP_SELECT */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT, val);
+
+       /* PICSR */
+       val = SBE_2T3E3_CPLD_VAL_DMO_SIGNAL_DETECTED |
+               SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_LOCK_DETECTED |
+               SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_SIGNAL_DETECTED;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PICSR, val);
+
+       cpld_start_intr(sc);
+
+       udelay(1000);
+}
+
+void cpld_start_intr(struct channel *sc)
+{
+       u32 val;
+
+       /* PIER */
+       val = SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_ETHERNET_ENABLE |
+               SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_FRAMER_ENABLE;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PIER, val);
+#if 0
+       /*
+         do you want to hang up your computer?
+         ENABLE REST OF INTERRUPTS !!!
+         you have been warned :).
+       */
+#endif
+}
+
+void cpld_stop_intr(struct channel *sc)
+{
+       u32 val;
+
+       /* PIER */
+       val = 0;
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PIER, val);
+}
+
+void cpld_set_frame_mode(struct channel *sc, u32 mode)
+{
+       if (sc->p.frame_mode == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_FRAME_MODE_HDLC:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                              SBE_2T3E3_CPLD_VAL_TRANSPARENT_MODE |
+                              SBE_2T3E3_CPLD_VAL_RAW_MODE);
+               exar7250_unipolar_onoff(sc, SBE_2T3E3_OFF);
+               exar7300_unipolar_onoff(sc, SBE_2T3E3_OFF);
+               break;
+       case SBE_2T3E3_FRAME_MODE_TRANSPARENT:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                              SBE_2T3E3_CPLD_VAL_RAW_MODE);
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                            SBE_2T3E3_CPLD_VAL_TRANSPARENT_MODE);
+               exar7250_unipolar_onoff(sc, SBE_2T3E3_OFF);
+               exar7300_unipolar_onoff(sc, SBE_2T3E3_OFF);
+               break;
+       case SBE_2T3E3_FRAME_MODE_RAW:
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                            SBE_2T3E3_CPLD_VAL_RAW_MODE);
+               exar7250_unipolar_onoff(sc, SBE_2T3E3_ON);
+               exar7300_unipolar_onoff(sc, SBE_2T3E3_ON);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.frame_mode = mode;
+}
+
+/* set rate of the local clock */
+void cpld_set_frame_type(struct channel *sc, u32 type)
+{
+       switch (type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                            SBE_2T3E3_CPLD_VAL_LOCAL_CLOCK_E3);
+               break;
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                              SBE_2T3E3_CPLD_VAL_LOCAL_CLOCK_E3);
+               break;
+       default:
+               return;
+       }
+}
+
+void cpld_set_scrambler(struct channel *sc, u32 mode)
+{
+       if (sc->p.scrambler == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_SCRAMBLER_OFF:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRB,
+                              SBE_2T3E3_CPLD_VAL_SCRAMBLER_ENABLE);
+               break;
+       case SBE_2T3E3_SCRAMBLER_LARSCOM:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRB,
+                              SBE_2T3E3_CPLD_VAL_SCRAMBLER_TYPE);
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRB,
+                            SBE_2T3E3_CPLD_VAL_SCRAMBLER_ENABLE);
+               break;
+       case SBE_2T3E3_SCRAMBLER_ADC_KENTROX_DIGITAL:
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRB,
+                            SBE_2T3E3_CPLD_VAL_SCRAMBLER_TYPE);
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRB,
+                            SBE_2T3E3_CPLD_VAL_SCRAMBLER_ENABLE);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.scrambler = mode;
+}
+
+
+void cpld_set_crc(struct channel *sc, u32 crc)
+{
+       if (sc->p.crc == crc)
+               return;
+
+       switch (crc) {
+       case SBE_2T3E3_CRC_16:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                              SBE_2T3E3_CPLD_VAL_CRC32);
+               break;
+       case SBE_2T3E3_CRC_32:
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                            SBE_2T3E3_CPLD_VAL_CRC32);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.crc = crc;
+}
+
+
+void cpld_select_panel(struct channel *sc, u32 panel)
+{
+       if (sc->p.panel == panel)
+               return;
+       switch (panel) {
+       case SBE_2T3E3_PANEL_FRONT:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                              SBE_2T3E3_CPLD_VAL_REAR_PANEL);
+               break;
+       case SBE_2T3E3_PANEL_REAR:
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                            SBE_2T3E3_CPLD_VAL_REAR_PANEL);
+               break;
+       default:
+               return;
+       }
+
+       udelay(100);
+
+       sc->p.panel = panel;
+}
+
+
+extern void cpld_set_clock(struct channel *sc, u32 mode)
+{
+       if (sc->p.clock_source == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_TIMING_LOCAL:
+               cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                            SBE_2T3E3_CPLD_VAL_ALT);
+               break;
+       case SBE_2T3E3_TIMING_LOOP:
+               cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRA,
+                              SBE_2T3E3_CPLD_VAL_ALT);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.clock_source = mode;
+}
+
+void cpld_set_pad_count(struct channel *sc, u32 count)
+{
+       u32 val;
+
+       if (sc->p.pad_count == count)
+               return;
+
+       switch (count) {
+       case SBE_2T3E3_PAD_COUNT_1:
+               val = SBE_2T3E3_CPLD_VAL_PAD_COUNT_1;
+               break;
+       case SBE_2T3E3_PAD_COUNT_2:
+               val = SBE_2T3E3_CPLD_VAL_PAD_COUNT_2;
+               break;
+       case SBE_2T3E3_PAD_COUNT_3:
+               val = SBE_2T3E3_CPLD_VAL_PAD_COUNT_3;
+               break;
+       case SBE_2T3E3_PAD_COUNT_4:
+               val = SBE_2T3E3_CPLD_VAL_PAD_COUNT_4;
+               break;
+       default:
+               return;
+       }
+
+       cpld_clear_bit(sc, SBE_2T3E3_CPLD_REG_PCRB,
+                      SBE_2T3E3_CPLD_VAL_PAD_COUNT);
+       cpld_set_bit(sc, SBE_2T3E3_CPLD_REG_PCRB, val);
+       sc->p.pad_count = count;
+}
+
+void cpld_LOS_update(struct channel *sc)
+{
+       u_int8_t los;
+
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PICSR,
+                  SBE_2T3E3_CPLD_VAL_DMO_SIGNAL_DETECTED |
+                  SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_LOCK_DETECTED |
+                  SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_SIGNAL_DETECTED);
+       los = cpld_read(sc, SBE_2T3E3_CPLD_REG_PICSR) &
+               SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_SIGNAL_DETECTED;
+
+       if (los != sc->s.LOS)
+               dev_info(&sc->pdev->dev, "SBE 2T3E3: LOS status: %s\n",
+                        los ? "Loss of signal" : "Signal OK");
+       sc->s.LOS = los;
+}
+
+void cpld_set_fractional_mode(struct channel *sc, u32 mode,
+                             u32 start, u32 stop)
+{
+       if (mode == SBE_2T3E3_FRACTIONAL_MODE_NONE) {
+               start = 0;
+               stop = 0;
+       }
+
+       if (sc->p.fractional_mode == mode && sc->p.bandwidth_start == start &&
+           sc->p.bandwidth_stop == stop)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_FRACTIONAL_MODE_NONE:
+               cpld_write(sc, SBE_2T3E3_CPLD_REG_PCRC,
+                          SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_NONE);
+               break;
+       case SBE_2T3E3_FRACTIONAL_MODE_0:
+               cpld_write(sc, SBE_2T3E3_CPLD_REG_PCRC,
+                          SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_0);
+               break;
+       case SBE_2T3E3_FRACTIONAL_MODE_1:
+               cpld_write(sc, SBE_2T3E3_CPLD_REG_PCRC,
+                          SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_1);
+               break;
+       case SBE_2T3E3_FRACTIONAL_MODE_2:
+               cpld_write(sc, SBE_2T3E3_CPLD_REG_PCRC,
+                          SBE_2T3E3_CPLD_VAL_FRACTIONAL_MODE_2);
+               break;
+       default:
+               printk(KERN_ERR "wrong mode in set_fractional_mode\n");
+               return;
+       }
+
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PBWF, start);
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_PBWL, stop);
+
+       sc->p.fractional_mode = mode;
+       sc->p.bandwidth_start = start;
+       sc->p.bandwidth_stop = stop;
+}
diff --git a/drivers/staging/sbe-2t3e3/ctrl.c b/drivers/staging/sbe-2t3e3/ctrl.c
new file mode 100644 (file)
index 0000000..d9dd216
--- /dev/null
@@ -0,0 +1,362 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/types.h>
+#include "2t3e3.h"
+#include "ctrl.h"
+
+void t3e3_set_frame_type(struct channel *sc, u32 mode)
+{
+       if (sc->p.frame_type == mode)
+               return;
+
+       if (sc->r.flags & SBE_2T3E3_FLAG_NETWORK_UP) {
+               dev_err(&sc->pdev->dev, "SBE 2T3E3: changing frame type during active connection\n");
+               return;
+       }
+
+       exar7300_set_frame_type(sc, mode);
+       exar7250_set_frame_type(sc, mode);
+       cpld_set_frame_type(sc, mode);
+
+       sc->p.frame_type = mode;
+}
+
+void t3e3_set_loopback(struct channel *sc, u32 mode)
+{
+       u32 tx, rx;
+
+       if (sc->p.loopback == mode)
+               return;
+
+       tx = sc->p.transmitter_on;
+       rx = sc->p.receiver_on;
+       if (tx == SBE_2T3E3_ON)
+               dc_transmitter_onoff(sc, SBE_2T3E3_OFF);
+       if (rx == SBE_2T3E3_ON)
+               dc_receiver_onoff(sc, SBE_2T3E3_OFF);
+
+       /* stop current loopback if any exists */
+       switch (sc->p.loopback) {
+       case SBE_2T3E3_LOOPBACK_NONE:
+               break;
+       case SBE_2T3E3_LOOPBACK_ETHERNET:
+               dc_set_loopback(sc, SBE_2T3E3_21143_VAL_LOOPBACK_OFF);
+               break;
+       case SBE_2T3E3_LOOPBACK_FRAMER:
+               exar7250_set_loopback(sc, SBE_2T3E3_FRAMER_VAL_LOOPBACK_OFF);
+               break;
+       case SBE_2T3E3_LOOPBACK_LIU_DIGITAL:
+       case SBE_2T3E3_LOOPBACK_LIU_ANALOG:
+       case SBE_2T3E3_LOOPBACK_LIU_REMOTE:
+               exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_OFF);
+               break;
+       default:
+               return;
+       }
+
+       switch (mode) {
+       case SBE_2T3E3_LOOPBACK_NONE:
+               break;
+       case SBE_2T3E3_LOOPBACK_ETHERNET:
+               dc_set_loopback(sc, SBE_2T3E3_21143_VAL_LOOPBACK_INTERNAL);
+               break;
+       case SBE_2T3E3_LOOPBACK_FRAMER:
+               exar7250_set_loopback(sc, SBE_2T3E3_FRAMER_VAL_LOOPBACK_ON);
+               break;
+       case SBE_2T3E3_LOOPBACK_LIU_DIGITAL:
+               exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_DIGITAL);
+               break;
+       case SBE_2T3E3_LOOPBACK_LIU_ANALOG:
+               exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_ANALOG);
+               break;
+       case SBE_2T3E3_LOOPBACK_LIU_REMOTE:
+               exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_REMOTE);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.loopback = mode;
+
+       if (tx == SBE_2T3E3_ON)
+               dc_transmitter_onoff(sc, SBE_2T3E3_ON);
+       if (rx == SBE_2T3E3_ON)
+               dc_receiver_onoff(sc, SBE_2T3E3_ON);
+}
+
+
+void t3e3_reg_read(struct channel *sc, u32 *reg, u32 *val)
+{
+       u32 i;
+
+       *val = 0;
+
+       switch (reg[0]) {
+       case SBE_2T3E3_CHIP_21143:
+               if (!(reg[1] & 7))
+                       *val = dc_read(sc->addr, reg[1] / 8);
+               break;
+       case SBE_2T3E3_CHIP_CPLD:
+               for (i = 0; i < SBE_2T3E3_CPLD_REG_MAX; i++)
+                       if (cpld_reg_map[i][sc->h.slot] == reg[1]) {
+                               *val = cpld_read(sc, i);
+                               break;
+                       }
+               break;
+       case SBE_2T3E3_CHIP_FRAMER:
+               for (i = 0; i < SBE_2T3E3_FRAMER_REG_MAX; i++)
+                       if (t3e3_framer_reg_map[i] == reg[1]) {
+                               *val = exar7250_read(sc, i);
+                               break;
+                       }
+               break;
+       case SBE_2T3E3_CHIP_LIU:
+               for (i = 0; i < SBE_2T3E3_LIU_REG_MAX; i++)
+                       if (t3e3_liu_reg_map[i] == reg[1]) {
+                               *val = exar7300_read(sc, i);
+                               break;
+                       }
+               break;
+       default:
+               break;
+       }
+}
+
+void t3e3_reg_write(struct channel *sc, u32 *reg)
+{
+       u32 i;
+
+       switch (reg[0]) {
+       case SBE_2T3E3_CHIP_21143:
+               dc_write(sc->addr, reg[1], reg[2]);
+               break;
+       case SBE_2T3E3_CHIP_CPLD:
+               for (i = 0; i < SBE_2T3E3_CPLD_REG_MAX; i++)
+                       if (cpld_reg_map[i][sc->h.slot] == reg[1]) {
+                               cpld_write(sc, i, reg[2]);
+                               break;
+                       }
+               break;
+       case SBE_2T3E3_CHIP_FRAMER:
+               for (i = 0; i < SBE_2T3E3_FRAMER_REG_MAX; i++)
+                       if (t3e3_framer_reg_map[i] == reg[1]) {
+                               exar7250_write(sc, i, reg[2]);
+                               break;
+                       }
+               break;
+       case SBE_2T3E3_CHIP_LIU:
+               for (i = 0; i < SBE_2T3E3_LIU_REG_MAX; i++)
+                       if (t3e3_liu_reg_map[i] == reg[1]) {
+                               exar7300_write(sc, i, reg[2]);
+                               break;
+                       }
+               break;
+       }
+}
+
+void t3e3_port_get(struct channel *sc, t3e3_param_t *param)
+{
+       memcpy(param, &(sc->p), sizeof(t3e3_param_t));
+}
+
+void t3e3_port_set(struct channel *sc, t3e3_param_t *param)
+{
+       if (param->frame_mode != 0xff)
+               cpld_set_frame_mode(sc, param->frame_mode);
+
+       if (param->fractional_mode != 0xff)
+               cpld_set_fractional_mode(sc, param->fractional_mode,
+                                        param->bandwidth_start,
+                                        param->bandwidth_stop);
+
+       if (param->pad_count != 0xff)
+               cpld_set_pad_count(sc, param->pad_count);
+
+       if (param->crc != 0xff)
+               cpld_set_crc(sc, param->crc);
+
+       if (param->receiver_on != 0xff)
+               dc_receiver_onoff(sc, param->receiver_on);
+
+       if (param->transmitter_on != 0xff)
+               dc_transmitter_onoff(sc, param->transmitter_on);
+
+       if (param->frame_type != 0xff)
+               t3e3_set_frame_type(sc, param->frame_type);
+
+       if (param->panel != 0xff)
+               cpld_select_panel(sc, param->panel);
+
+       if (param->line_build_out != 0xff)
+               exar7300_line_build_out_onoff(sc, param->line_build_out);
+
+       if (param->receive_equalization != 0xff)
+               exar7300_receive_equalization_onoff(sc, param->receive_equalization);
+
+       if (param->transmit_all_ones != 0xff)
+               exar7300_transmit_all_ones_onoff(sc, param->transmit_all_ones);
+
+       if (param->loopback != 0xff)
+               t3e3_set_loopback(sc, param->loopback);
+
+       if (param->clock_source != 0xff)
+               cpld_set_clock(sc, param->clock_source);
+
+       if (param->scrambler != 0xff)
+               cpld_set_scrambler(sc, param->scrambler);
+}
+
+void t3e3_port_get_stats(struct channel *sc,
+                        t3e3_stats_t *stats)
+{
+       u32 result;
+
+       sc->s.LOC = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL)
+               & SBE_2T3E3_FRAMER_VAL_LOSS_OF_CLOCK_STATUS ? 1 : 0;
+
+       switch (sc->p.frame_type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_2);
+               sc->s.LOF = result & SBE_2T3E3_FRAMER_VAL_E3_RX_LOF ? 1 : 0;
+               sc->s.OOF = result & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF ? 1 : 0;
+#if 0
+               sc->s.LOS = result & SBE_2T3E3_FRAMER_VAL_E3_RX_LOS ? 1 : 0;
+#else
+               cpld_LOS_update(sc);
+#endif
+               sc->s.AIS = result & SBE_2T3E3_FRAMER_VAL_E3_RX_AIS ? 1 : 0;
+               sc->s.FERF = result & SBE_2T3E3_FRAMER_VAL_E3_RX_FERF ? 1 : 0;
+               break;
+
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_CONFIGURATION_STATUS);
+               sc->s.AIS = result & SBE_2T3E3_FRAMER_VAL_T3_RX_AIS ? 1 : 0;
+#if 0
+               sc->s.LOS = result & SBE_2T3E3_FRAMER_VAL_T3_RX_LOS ? 1 : 0;
+#else
+               cpld_LOS_update(sc);
+#endif
+               sc->s.IDLE = result & SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE ? 1 : 0;
+               sc->s.OOF = result & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF ? 1 : 0;
+
+               result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_STATUS);
+               sc->s.FERF = result & SBE_2T3E3_FRAMER_VAL_T3_RX_FERF ? 1 : 0;
+               sc->s.AIC = result & SBE_2T3E3_FRAMER_VAL_T3_RX_AIC ? 1 : 0;
+               sc->s.FEBE_code = result & SBE_2T3E3_FRAMER_VAL_T3_RX_FEBE;
+
+               sc->s.FEAC = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC);
+               break;
+
+       default:
+               break;
+       }
+
+       result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_LCV_EVENT_COUNT_MSB) << 8;
+       result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
+       sc->s.LCV += result;
+
+       result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_FRAMING_BIT_ERROR_EVENT_COUNT_MSB) << 8;
+       result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
+       sc->s.FRAMING_BIT += result;
+
+       result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_PARITY_ERROR_EVENT_COUNT_MSB) << 8;
+       result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
+       sc->s.PARITY_ERROR += result;
+
+       result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_FEBE_EVENT_COUNT_MSB) << 8;
+       result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
+       sc->s.FEBE_count += result;
+
+       result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_CP_BIT_ERROR_EVENT_COUNT_MSB) << 8;
+       result += exar7250_read(sc, SBE_2T3E3_FRAMER_REG_PMON_HOLDING_REGISTER);
+       sc->s.CP_BIT += result;
+
+       memcpy(stats, &(sc->s), sizeof(t3e3_stats_t));
+}
+
+void t3e3_port_del_stats(struct channel *sc)
+{
+       memset(&(sc->s), 0, sizeof(t3e3_stats_t));
+}
+
+void t3e3_if_config(struct channel *sc, u32 cmd, char *set,
+                   t3e3_resp_t *ret, int *rlen)
+{
+       t3e3_param_t *param = (t3e3_param_t *)set;
+       u32 *data = (u32 *)set;
+
+       /* turn off all interrupt */
+       /* cpld_stop_intr(sc); */
+
+       switch (cmd) {
+       case SBE_2T3E3_PORT_GET:
+               t3e3_port_get(sc, &(ret->u.param));
+               *rlen = sizeof(ret->u.param);
+               break;
+       case SBE_2T3E3_PORT_SET:
+               t3e3_port_set(sc, param);
+               *rlen = 0;
+               break;
+       case SBE_2T3E3_PORT_GET_STATS:
+               t3e3_port_get_stats(sc, &(ret->u.stats));
+               *rlen = sizeof(ret->u.stats);
+               break;
+       case SBE_2T3E3_PORT_DEL_STATS:
+               t3e3_port_del_stats(sc);
+               *rlen = 0;
+               break;
+       case SBE_2T3E3_PORT_READ_REGS:
+               t3e3_reg_read(sc, data, &(ret->u.data));
+               *rlen = sizeof(ret->u.data);
+               break;
+       case SBE_2T3E3_PORT_WRITE_REGS:
+#if 0
+               printk(KERN_DEBUG "SBE_2T3E3_PORT_WRITE_REGS, 0x%x, 0x%x, 0x%x\n",
+                      ((int*)data)[0], ((int*)data)[1], ((int*)data)[2]);
+#endif
+               t3e3_reg_write(sc, data);
+               *rlen = 0;
+               break;
+       case SBE_2T3E3_LOG_LEVEL:
+               *rlen = 0;
+               break;
+       default:
+               *rlen = 0;
+               break;
+       }
+
+       /* turn on interrupt */
+       /* cpld_start_intr(sc); */
+}
+
+void t3e3_sc_init(struct channel *sc)
+{
+       memset(sc, 0, sizeof(*sc));
+
+       sc->p.frame_mode = SBE_2T3E3_FRAME_MODE_HDLC;
+       sc->p.fractional_mode = SBE_2T3E3_FRACTIONAL_MODE_NONE;
+       sc->p.crc = SBE_2T3E3_CRC_32;
+       sc->p.receiver_on = SBE_2T3E3_OFF;
+       sc->p.transmitter_on = SBE_2T3E3_OFF;
+       sc->p.frame_type = SBE_2T3E3_FRAME_TYPE_T3_CBIT;
+       sc->p.panel = SBE_2T3E3_PANEL_FRONT;
+       sc->p.line_build_out = SBE_2T3E3_OFF;
+       sc->p.receive_equalization = SBE_2T3E3_OFF;
+       sc->p.transmit_all_ones = SBE_2T3E3_OFF;
+       sc->p.loopback = SBE_2T3E3_LOOPBACK_NONE;
+       sc->p.clock_source = SBE_2T3E3_TIMING_LOCAL;
+       sc->p.scrambler = SBE_2T3E3_SCRAMBLER_OFF;
+       sc->p.pad_count = SBE_2T3E3_PAD_COUNT_1;
+}
diff --git a/drivers/staging/sbe-2t3e3/ctrl.h b/drivers/staging/sbe-2t3e3/ctrl.h
new file mode 100644 (file)
index 0000000..c11a588
--- /dev/null
@@ -0,0 +1,131 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#ifndef CTRL_H
+#define CTRL_H
+
+#define SBE_2T3E3_OFF                                  0
+#define SBE_2T3E3_ON                                   1
+
+#define SBE_2T3E3_LED_NONE                             0
+#define SBE_2T3E3_LED_GREEN                            1
+#define SBE_2T3E3_LED_YELLOW                           2
+
+#define SBE_2T3E3_CABLE_LENGTH_LESS_THAN_255_FEET      0
+#define SBE_2T3E3_CABLE_LENGTH_GREATER_THAN_255_FEET   1
+
+#define SBE_2T3E3_CRC_16                               0
+#define SBE_2T3E3_CRC_32                               1
+
+#define SBE_2T3E3_PANEL_FRONT                          0
+#define SBE_2T3E3_PANEL_REAR                           1
+
+#define SBE_2T3E3_FRAME_MODE_HDLC                      0
+#define SBE_2T3E3_FRAME_MODE_TRANSPARENT               1
+#define SBE_2T3E3_FRAME_MODE_RAW                       2
+
+#define SBE_2T3E3_FRAME_TYPE_E3_G751                   0
+#define SBE_2T3E3_FRAME_TYPE_E3_G832                   1
+#define SBE_2T3E3_FRAME_TYPE_T3_CBIT                   2
+#define SBE_2T3E3_FRAME_TYPE_T3_M13                    3
+
+#define SBE_2T3E3_FRACTIONAL_MODE_NONE                 0
+#define SBE_2T3E3_FRACTIONAL_MODE_0                    1
+#define SBE_2T3E3_FRACTIONAL_MODE_1                    2
+#define SBE_2T3E3_FRACTIONAL_MODE_2                    3
+
+#define SBE_2T3E3_SCRAMBLER_OFF                                0
+#define SBE_2T3E3_SCRAMBLER_LARSCOM                    1
+#define SBE_2T3E3_SCRAMBLER_ADC_KENTROX_DIGITAL                2
+
+#define SBE_2T3E3_TIMING_LOCAL                         0
+#define SBE_2T3E3_TIMING_LOOP                          1
+
+#define SBE_2T3E3_LOOPBACK_NONE                                0
+#define SBE_2T3E3_LOOPBACK_ETHERNET                    1
+#define SBE_2T3E3_LOOPBACK_FRAMER                      2
+#define SBE_2T3E3_LOOPBACK_LIU_DIGITAL                 3
+#define SBE_2T3E3_LOOPBACK_LIU_ANALOG                  4
+#define SBE_2T3E3_LOOPBACK_LIU_REMOTE                  5
+
+#define SBE_2T3E3_PAD_COUNT_1                          1
+#define SBE_2T3E3_PAD_COUNT_2                          2
+#define SBE_2T3E3_PAD_COUNT_3                          3
+#define SBE_2T3E3_PAD_COUNT_4                          4
+
+#define SBE_2T3E3_CHIP_21143                           0
+#define SBE_2T3E3_CHIP_CPLD                            1
+#define SBE_2T3E3_CHIP_FRAMER                          2
+#define SBE_2T3E3_CHIP_LIU                             3
+
+#define SBE_2T3E3_LOG_LEVEL_NONE                       0
+#define SBE_2T3E3_LOG_LEVEL_ERROR                      1
+#define SBE_2T3E3_LOG_LEVEL_WARNING                    2
+#define SBE_2T3E3_LOG_LEVEL_INFO                       3
+
+/* commands */
+#define SBE_2T3E3_PORT_GET                             0
+#define SBE_2T3E3_PORT_SET                             1
+#define SBE_2T3E3_PORT_GET_STATS                       2
+#define SBE_2T3E3_PORT_DEL_STATS                       3
+#define SBE_2T3E3_PORT_READ_REGS                       4
+#define SBE_2T3E3_LOG_LEVEL                            5
+#define SBE_2T3E3_PORT_WRITE_REGS                      6
+
+#define NG_SBE_2T3E3_NODE_TYPE  "sbe2T3E3"
+#define NG_SBE_2T3E3_COOKIE     0x03800891
+
+typedef struct t3e3_param {
+       u_int8_t frame_mode;            /* FRAME_MODE_* */
+       u_int8_t crc;                   /* CRC_* */
+       u_int8_t receiver_on;           /* ON/OFF */
+       u_int8_t transmitter_on;        /* ON/OFF */
+       u_int8_t frame_type;            /* FRAME_TYPE_* */
+       u_int8_t panel;                 /* PANEL_* */
+       u_int8_t line_build_out;        /* ON/OFF */
+       u_int8_t receive_equalization;  /* ON/OFF */
+       u_int8_t transmit_all_ones;     /* ON/OFF */
+       u_int8_t loopback;              /* LOOPBACK_* */
+       u_int8_t clock_source;          /* TIMING_* */
+       u_int8_t scrambler;             /* SCRAMBLER_* */
+       u_int8_t pad_count;             /* PAD_COUNT_* */
+       u_int8_t log_level;             /* LOG_LEVEL_* - unused */
+       u_int8_t fractional_mode;       /* FRACTIONAL_MODE_* */
+       u_int8_t bandwidth_start;       /* 0-255 */
+       u_int8_t bandwidth_stop;        /* 0-255 */
+} t3e3_param_t;
+
+typedef struct t3e3_stats {
+       u_int64_t in_bytes;
+       u32 in_packets, in_dropped;
+       u32 in_errors, in_error_desc, in_error_coll, in_error_drib,
+               in_error_crc, in_error_mii;
+       u_int64_t out_bytes;
+       u32 out_packets, out_dropped;
+       u32 out_errors, out_error_jab, out_error_lost_carr,
+               out_error_no_carr, out_error_link_fail, out_error_underflow,
+               out_error_dereferred;
+       u_int8_t LOC, LOF, OOF, LOS, AIS, FERF, IDLE, AIC, FEAC;
+       u_int16_t FEBE_code;
+       u32 LCV, FRAMING_BIT, PARITY_ERROR, FEBE_count, CP_BIT;
+} t3e3_stats_t;
+
+
+typedef struct t3e3_resp {
+       union {
+               t3e3_param_t param;
+               t3e3_stats_t stats;
+               u32 data;
+       } u;
+} t3e3_resp_t;
+
+#endif /* CTRL_H */
diff --git a/drivers/staging/sbe-2t3e3/dc.c b/drivers/staging/sbe-2t3e3/dc.c
new file mode 100644 (file)
index 0000000..126a972
--- /dev/null
@@ -0,0 +1,502 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include "2t3e3.h"
+#include "ctrl.h"
+
+void dc_init(struct channel *sc)
+{
+       u32 val;
+
+       dc_stop(sc);
+       /*dc_reset(sc);*/ /* do not want to reset here */
+
+       /*
+        * BUS_MODE (CSR0)
+        */
+       val = SBE_2T3E3_21143_VAL_READ_LINE_ENABLE |
+               SBE_2T3E3_21143_VAL_READ_MULTIPLE_ENABLE |
+               SBE_2T3E3_21143_VAL_TRANSMIT_AUTOMATIC_POLLING_200us |
+               SBE_2T3E3_21143_VAL_BUS_ARBITRATION_RR;
+
+       if (sc->h.command & 16)
+               val |= SBE_2T3E3_21143_VAL_WRITE_AND_INVALIDATE_ENABLE;
+
+       switch (sc->h.cache_size) {
+       case 32:
+               val |= SBE_2T3E3_21143_VAL_CACHE_ALIGNMENT_32;
+               break;
+       case 16:
+               val |= SBE_2T3E3_21143_VAL_CACHE_ALIGNMENT_16;
+               break;
+       case 8:
+               val |= SBE_2T3E3_21143_VAL_CACHE_ALIGNMENT_8;
+               break;
+       default:
+               break;
+       }
+
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_BUS_MODE, val);
+
+       /* OPERATION_MODE (CSR6) */
+       val = SBE_2T3E3_21143_VAL_RECEIVE_ALL |
+               SBE_2T3E3_21143_VAL_MUST_BE_ONE |
+               SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_1 |
+               SBE_2T3E3_21143_VAL_LOOPBACK_OFF |
+               SBE_2T3E3_21143_VAL_PASS_ALL_MULTICAST |
+               SBE_2T3E3_21143_VAL_PROMISCUOUS_MODE |
+               SBE_2T3E3_21143_VAL_PASS_BAD_FRAMES;
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE, val);
+       if (sc->p.loopback == SBE_2T3E3_LOOPBACK_ETHERNET)
+               sc->p.loopback = SBE_2T3E3_LOOPBACK_NONE;
+
+#if 0 /* No need to clear this register - and it may be in use */
+       /*
+        * BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT (CSR9)
+        */
+       val = 0;
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT, val);
+#endif
+
+       /*
+        * GENERAL_PURPOSE_TIMER_AND_INTERRUPT_MITIGATION_CONTROL (CSR11)
+        */
+       val = SBE_2T3E3_21143_VAL_CYCLE_SIZE |
+               SBE_2T3E3_21143_VAL_TRANSMIT_TIMER |
+               SBE_2T3E3_21143_VAL_NUMBER_OF_TRANSMIT_PACKETS |
+               SBE_2T3E3_21143_VAL_RECEIVE_TIMER |
+               SBE_2T3E3_21143_VAL_NUMBER_OF_RECEIVE_PACKETS;
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_GENERAL_PURPOSE_TIMER_AND_INTERRUPT_MITIGATION_CONTROL, val);
+
+       /* prepare descriptors and data for receive and transmit procecsses */
+       if (dc_init_descriptor_list(sc) != 0)
+               return;
+
+       /* clear ethernet interrupts status */
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_STATUS, 0xFFFFFFFF);
+
+       /* SIA mode registers */
+       dc_set_output_port(sc);
+}
+
+void dc_start(struct channel *sc)
+{
+       u32 val;
+
+       if (!(sc->r.flags & SBE_2T3E3_FLAG_NETWORK_UP))
+               return;
+
+       dc_init(sc);
+
+       /* get actual LOS and OOF status */
+       switch (sc->p.frame_type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_2);
+               dev_dbg(&sc->pdev->dev, "Start Framer Rx Status = %02X\n", val);
+               sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF ? 1 : 0;
+               break;
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_CONFIGURATION_STATUS);
+               dev_dbg(&sc->pdev->dev, "Start Framer Rx Status = %02X\n", val);
+               sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF ? 1 : 0;
+               break;
+       default:
+               break;
+       }
+       cpld_LOS_update(sc);
+
+       /* start receive and transmit processes */
+       dc_transmitter_onoff(sc, SBE_2T3E3_ON);
+       dc_receiver_onoff(sc, SBE_2T3E3_ON);
+
+       /* start interrupts */
+       dc_start_intr(sc);
+}
+
+#define MAX_INT_WAIT_CNT       12000
+void dc_stop(struct channel *sc)
+{
+       int wcnt;
+
+       /* stop receive and transmit processes */
+       dc_receiver_onoff(sc, SBE_2T3E3_OFF);
+       dc_transmitter_onoff(sc, SBE_2T3E3_OFF);
+
+       /* turn off ethernet interrupts */
+       dc_stop_intr(sc);
+
+       /* wait to ensure the interrupts have been completed */
+       for (wcnt = 0; wcnt < MAX_INT_WAIT_CNT; wcnt++) {
+               udelay(5);
+               if (!sc->interrupt_active)
+                       break;
+       }
+       if (wcnt >= MAX_INT_WAIT_CNT)
+               dev_warn(&sc->pdev->dev, "SBE 2T3E3: Interrupt active too long\n");
+
+       /* clear all receive/transmit data */
+       dc_drop_descriptor_list(sc);
+}
+
+void dc_start_intr(struct channel *sc)
+{
+       if (sc->p.loopback == SBE_2T3E3_LOOPBACK_NONE && sc->s.OOF)
+               return;
+
+       if (sc->p.receiver_on || sc->p.transmitter_on) {
+               if (!sc->ether.interrupt_enable_mask)
+                       dc_write(sc->addr, SBE_2T3E3_21143_REG_STATUS, 0xFFFFFFFF);
+
+               sc->ether.interrupt_enable_mask =
+                       SBE_2T3E3_21143_VAL_NORMAL_INTERRUPT_SUMMARY_ENABLE |
+                       SBE_2T3E3_21143_VAL_ABNORMAL_INTERRUPT_SUMMARY_ENABLE |
+                       SBE_2T3E3_21143_VAL_RECEIVE_STOPPED_ENABLE |
+                       SBE_2T3E3_21143_VAL_RECEIVE_BUFFER_UNAVAILABLE_ENABLE |
+                       SBE_2T3E3_21143_VAL_RECEIVE_INTERRUPT_ENABLE |
+                       SBE_2T3E3_21143_VAL_TRANSMIT_UNDERFLOW_INTERRUPT_ENABLE |
+                       SBE_2T3E3_21143_VAL_TRANSMIT_BUFFER_UNAVAILABLE_ENABLE |
+                       SBE_2T3E3_21143_VAL_TRANSMIT_STOPPED_ENABLE |
+                       SBE_2T3E3_21143_VAL_TRANSMIT_INTERRUPT_ENABLE;
+
+               dc_write(sc->addr, SBE_2T3E3_21143_REG_INTERRUPT_ENABLE,
+                        sc->ether.interrupt_enable_mask);
+       }
+}
+
+void dc_stop_intr(struct channel *sc)
+{
+       sc->ether.interrupt_enable_mask = 0;
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_INTERRUPT_ENABLE, 0);
+}
+
+void dc_reset(struct channel *sc)
+{
+       /* turn off ethernet interrupts */
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_INTERRUPT_ENABLE, 0);
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_STATUS, 0xFFFFFFFF);
+
+       /* software reset */
+       dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_BUS_MODE,
+                  SBE_2T3E3_21143_VAL_SOFTWARE_RESET);
+       udelay(4); /* 50 PCI cycles < 2us */
+
+       /* clear hardware configuration */
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_BUS_MODE, 0);
+
+       /* clear software configuration */
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE, 0);
+
+       /* turn off SIA reset */
+       dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_SIA_CONNECTIVITY,
+                  SBE_2T3E3_21143_VAL_SIA_RESET);
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_SIA_TRANSMIT_AND_RECEIVE, 0);
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_SIA_AND_GENERAL_PURPOSE_PORT, 0);
+}
+
+
+void dc_receiver_onoff(struct channel *sc, u32 mode)
+{
+       u32 i, state = 0;
+
+       if (sc->p.receiver_on == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_OFF:
+               if (dc_read(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE) &
+                   SBE_2T3E3_21143_VAL_RECEIVE_START) {
+                       dc_clear_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                                     SBE_2T3E3_21143_VAL_RECEIVE_START);
+
+                       for (i = 0; i < 16; i++) {
+                               state = dc_read(sc->addr, SBE_2T3E3_21143_REG_STATUS) &
+                                       SBE_2T3E3_21143_VAL_RECEIVE_PROCESS_STATE;
+                               if (state == SBE_2T3E3_21143_VAL_RX_STOPPED)
+                                       break;
+                               udelay(5);
+                       }
+                       if (state != SBE_2T3E3_21143_VAL_RX_STOPPED)
+                               dev_warn(&sc->pdev->dev, "SBE 2T3E3: Rx failed to stop\n");
+                       else
+                               dev_info(&sc->pdev->dev, "SBE 2T3E3: Rx off\n");
+               }
+               break;
+       case SBE_2T3E3_ON:
+               dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                          SBE_2T3E3_21143_VAL_RECEIVE_START);
+               udelay(100);
+               dc_write(sc->addr, SBE_2T3E3_21143_REG_RECEIVE_POLL_DEMAND, 0xFFFFFFFF);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.receiver_on = mode;
+}
+
+void dc_transmitter_onoff(struct channel *sc, u32 mode)
+{
+       u32 i, state = 0;
+
+       if (sc->p.transmitter_on == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_OFF:
+               if (dc_read(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE) &
+                   SBE_2T3E3_21143_VAL_TRANSMISSION_START) {
+                       dc_clear_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                                     SBE_2T3E3_21143_VAL_TRANSMISSION_START);
+
+                       for (i = 0; i < 16; i++) {
+                               state = dc_read(sc->addr, SBE_2T3E3_21143_REG_STATUS) &
+                                       SBE_2T3E3_21143_VAL_TRANSMISSION_PROCESS_STATE;
+                               if (state == SBE_2T3E3_21143_VAL_TX_STOPPED)
+                                       break;
+                               udelay(5);
+                       }
+                       if (state != SBE_2T3E3_21143_VAL_TX_STOPPED)
+                               dev_warn(&sc->pdev->dev, "SBE 2T3E3: Tx failed to stop\n");
+               }
+               break;
+       case SBE_2T3E3_ON:
+               dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                          SBE_2T3E3_21143_VAL_TRANSMISSION_START);
+               udelay(100);
+               dc_write(sc->addr, SBE_2T3E3_21143_REG_TRANSMIT_POLL_DEMAND, 0xFFFFFFFF);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.transmitter_on = mode;
+}
+
+
+
+void dc_set_loopback(struct channel *sc, u32 mode)
+{
+       u32 val;
+
+       switch (mode) {
+       case SBE_2T3E3_21143_VAL_LOOPBACK_OFF:
+       case SBE_2T3E3_21143_VAL_LOOPBACK_INTERNAL:
+               break;
+       default:
+               return;
+       }
+
+#if 0
+       /* restart SIA */
+       dc_clear_bits(sc->addr, SBE_2T3E3_21143_REG_SIA_CONNECTIVITY,
+                     SBE_2T3E3_21143_VAL_SIA_RESET);
+       udelay(1000);
+       dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_SIA_CONNECTIVITY,
+                   SBE_2T3E3_21143_VAL_SIA_RESET);
+#endif
+
+       /* select loopback mode */
+       val = dc_read(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE) &
+               ~SBE_2T3E3_21143_VAL_OPERATING_MODE;
+       val |= mode;
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE, val);
+
+       if (mode == SBE_2T3E3_21143_VAL_LOOPBACK_OFF)
+               dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                          SBE_2T3E3_21143_VAL_FULL_DUPLEX_MODE);
+       else
+               dc_clear_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                             SBE_2T3E3_21143_VAL_FULL_DUPLEX_MODE);
+}
+
+u32 dc_init_descriptor_list(struct channel *sc)
+{
+       u32 i, j;
+       struct sk_buff *m;
+
+       if (sc->ether.rx_ring == NULL)
+               sc->ether.rx_ring = kzalloc(SBE_2T3E3_RX_DESC_RING_SIZE *
+                                           sizeof(t3e3_rx_desc_t), GFP_KERNEL);
+       if (sc->ether.rx_ring == NULL) {
+               dev_err(&sc->pdev->dev, "SBE 2T3E3: no buffer space for RX ring\n");
+               return ENOMEM;
+       }
+
+       if (sc->ether.tx_ring == NULL)
+               sc->ether.tx_ring = kzalloc(SBE_2T3E3_TX_DESC_RING_SIZE *
+                                           sizeof(t3e3_tx_desc_t), GFP_KERNEL);
+       if (sc->ether.tx_ring == NULL) {
+#ifdef T3E3_USE_CONTIGMALLOC
+               t3e3_contigmemory_size = SBE_2T3E3_RX_DESC_RING_SIZE *
+                       sizeof(t3e3_rx_desc_t);
+#endif
+               kfree(sc->ether.rx_ring);
+               sc->ether.rx_ring = NULL;
+               dev_err(&sc->pdev->dev, "SBE 2T3E3: no buffer space for RX ring\n");
+               return ENOMEM;
+       }
+
+
+       /*
+        * Receive ring
+        */
+       for (i = 0; i < SBE_2T3E3_RX_DESC_RING_SIZE; i++) {
+               sc->ether.rx_ring[i].rdes0 = SBE_2T3E3_RX_DESC_21143_OWN;
+               sc->ether.rx_ring[i].rdes1 =
+                       SBE_2T3E3_RX_DESC_SECOND_ADDRESS_CHAINED | SBE_2T3E3_MTU;
+
+               if (sc->ether.rx_data[i] == NULL) {
+                       if (!(m = dev_alloc_skb(MCLBYTES))) {
+                               for (j = 0; j < i; j++) {
+                                       dev_kfree_skb_any(sc->ether.rx_data[j]);
+                                       sc->ether.rx_data[j] = NULL;
+                               }
+#ifdef T3E3_USE_CONTIGMALLOC
+                               t3e3_contigmemory_size = SBE_2T3E3_RX_DESC_RING_SIZE *
+                                       sizeof(t3e3_rx_desc_t);
+#endif
+                               kfree(sc->ether.rx_ring);
+                               sc->ether.rx_ring = NULL;
+#ifdef T3E3_USE_CONTIGMALLOC
+                               t3e3_contigmemory_size = SBE_2T3E3_TX_DESC_RING_SIZE *
+                                       sizeof(t3e3_tx_desc_t);
+#endif
+                               kfree(sc->ether.tx_ring);
+                               sc->ether.tx_ring = NULL;
+                               dev_err(&sc->pdev->dev, "SBE 2T3E3: token_alloc err:"
+                                       " no buffer space for RX ring\n");
+                               return ENOBUFS;
+                       }
+                       sc->ether.rx_data[i] = m;
+               }
+               sc->ether.rx_ring[i].rdes2 = virt_to_phys(sc->ether.rx_data[i]->data);
+
+               sc->ether.rx_ring[i].rdes3 = virt_to_phys(
+                       &sc->ether.rx_ring[(i + 1) % SBE_2T3E3_RX_DESC_RING_SIZE]);
+       }
+       sc->ether.rx_ring[SBE_2T3E3_RX_DESC_RING_SIZE - 1].rdes1 |=
+               SBE_2T3E3_RX_DESC_END_OF_RING;
+       sc->ether.rx_ring_current_read = 0;
+
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_RECEIVE_LIST_BASE_ADDRESS,
+                virt_to_phys(&sc->ether.rx_ring[0]));
+
+       /*
+        * Transmit ring
+        */
+       for (i = 0; i < SBE_2T3E3_TX_DESC_RING_SIZE; i++) {
+               sc->ether.tx_ring[i].tdes0 = 0;
+               sc->ether.tx_ring[i].tdes1 = SBE_2T3E3_TX_DESC_SECOND_ADDRESS_CHAINED |
+                       SBE_2T3E3_TX_DESC_DISABLE_PADDING;
+
+               sc->ether.tx_ring[i].tdes2 = 0;
+               sc->ether.tx_data[i] = NULL;
+
+               sc->ether.tx_ring[i].tdes3 = virt_to_phys(
+                       &sc->ether.tx_ring[(i + 1) % SBE_2T3E3_TX_DESC_RING_SIZE]);
+       }
+       sc->ether.tx_ring[SBE_2T3E3_TX_DESC_RING_SIZE - 1].tdes1 |=
+               SBE_2T3E3_TX_DESC_END_OF_RING;
+
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_TRANSMIT_LIST_BASE_ADDRESS,
+                virt_to_phys(&sc->ether.tx_ring[0]));
+       sc->ether.tx_ring_current_read = 0;
+       sc->ether.tx_ring_current_write = 0;
+       sc->ether.tx_free_cnt = SBE_2T3E3_TX_DESC_RING_SIZE;
+       spin_lock_init(&sc->ether.tx_lock);
+
+       return 0;
+}
+
+void dc_clear_descriptor_list(struct channel *sc)
+{
+       u32 i;
+
+       /* clear CSR3 and CSR4 */
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_RECEIVE_LIST_BASE_ADDRESS, 0);
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_TRANSMIT_LIST_BASE_ADDRESS, 0);
+
+       /* free all data buffers on TX ring */
+       for (i = 0; i < SBE_2T3E3_TX_DESC_RING_SIZE; i++) {
+               if (sc->ether.tx_data[i] != NULL) {
+                       dev_kfree_skb_any(sc->ether.tx_data[i]);
+                       sc->ether.tx_data[i] = NULL;
+               }
+       }
+}
+
+void dc_drop_descriptor_list(struct channel *sc)
+{
+       u32 i;
+
+       dc_clear_descriptor_list(sc);
+
+       /* free all data buffers on RX ring */
+       for (i = 0; i < SBE_2T3E3_RX_DESC_RING_SIZE; i++) {
+               if (sc->ether.rx_data[i] != NULL) {
+                       dev_kfree_skb_any(sc->ether.rx_data[i]);
+                       sc->ether.rx_data[i] = NULL;
+               }
+       }
+
+       if (sc->ether.rx_ring != NULL) {
+#ifdef T3E3_USE_CONTIGMALLOC
+               t3e3_contigmemory_size = SBE_2T3E3_RX_DESC_RING_SIZE *
+                       sizeof(t3e3_rx_desc_t);
+#endif
+               kfree(sc->ether.rx_ring);
+               sc->ether.rx_ring = NULL;
+       }
+
+       if (sc->ether.tx_ring != NULL) {
+#ifdef T3E3_USE_CONTIGMALLOC
+               t3e3_contigmemory_size = SBE_2T3E3_TX_DESC_RING_SIZE *
+                       sizeof(t3e3_tx_desc_t);
+#endif
+               kfree(sc->ether.tx_ring);
+               sc->ether.tx_ring = NULL;
+       }
+}
+
+
+void dc_set_output_port(struct channel *sc)
+{
+       dc_clear_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                     SBE_2T3E3_21143_VAL_PORT_SELECT);
+
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_SIA_STATUS, 0x00000301);
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_SIA_CONNECTIVITY, 0);
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_SIA_TRANSMIT_AND_RECEIVE, 0);
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_SIA_AND_GENERAL_PURPOSE_PORT, 0x08000011);
+
+       dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                  SBE_2T3E3_21143_VAL_TRANSMIT_THRESHOLD_MODE_100Mbs |
+                  SBE_2T3E3_21143_VAL_HEARTBEAT_DISABLE |
+                  SBE_2T3E3_21143_VAL_PORT_SELECT |
+                  SBE_2T3E3_21143_VAL_FULL_DUPLEX_MODE);
+}
+
+void dc_restart(struct channel *sc)
+{
+       dev_warn(&sc->pdev->dev, "SBE 2T3E3: 21143 restart\n");
+
+       dc_stop(sc);
+       dc_reset(sc);
+       dc_init(sc);    /* stop + reset + init */
+       dc_start(sc);
+}
diff --git a/drivers/staging/sbe-2t3e3/exar7250.c b/drivers/staging/sbe-2t3e3/exar7250.c
new file mode 100644 (file)
index 0000000..809f446
--- /dev/null
@@ -0,0 +1,217 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include "2t3e3.h"
+#include "ctrl.h"
+
+void exar7250_init(struct channel *sc)
+{
+       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE,
+                      SBE_2T3E3_FRAMER_VAL_T3_CBIT |
+                      SBE_2T3E3_FRAMER_VAL_INTERRUPT_ENABLE_RESET |
+                      SBE_2T3E3_FRAMER_VAL_TIMING_ASYNCH_TXINCLK);
+
+       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL,
+                      SBE_2T3E3_FRAMER_VAL_DISABLE_TX_LOSS_OF_CLOCK |
+                      SBE_2T3E3_FRAMER_VAL_DISABLE_RX_LOSS_OF_CLOCK |
+                      SBE_2T3E3_FRAMER_VAL_AMI_LINE_CODE |
+                      SBE_2T3E3_FRAMER_VAL_RX_LINE_CLOCK_INVERT);
+
+       exar7250_set_frame_type(sc, SBE_2T3E3_FRAME_TYPE_T3_CBIT);
+}
+
+void exar7250_set_frame_type(struct channel *sc, u32 type)
+{
+       u32 val;
+
+       switch (type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               break;
+       default:
+               return;
+       }
+
+       exar7250_stop_intr(sc, type);
+
+       val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE);
+       val &= ~(SBE_2T3E3_FRAMER_VAL_LOCAL_LOOPBACK_MODE |
+                SBE_2T3E3_FRAMER_VAL_T3_E3_SELECT |
+                SBE_2T3E3_FRAMER_VAL_FRAME_FORMAT_SELECT);
+       switch (type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+               val |= SBE_2T3E3_FRAMER_VAL_E3_G751;
+               break;
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               val |= SBE_2T3E3_FRAMER_VAL_E3_G832;
+               break;
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+               val |= SBE_2T3E3_FRAMER_VAL_T3_CBIT;
+               break;
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               val |= SBE_2T3E3_FRAMER_VAL_T3_M13;
+               break;
+       default:
+               return;
+       }
+       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE, val);
+       exar7250_start_intr(sc, type);
+}
+
+
+void exar7250_start_intr(struct channel *sc, u32 type)
+{
+       u32 val;
+
+       switch (type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_2);
+#if 0
+               sc->s.LOS = val & SBE_2T3E3_FRAMER_VAL_E3_RX_LOS ? 1 : 0;
+#else
+               cpld_LOS_update(sc);
+#endif
+               sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF ? 1 : 0;
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_1);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_1,
+                              SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_ENABLE |
+                              SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_ENABLE);
+#if 0
+               /*SBE_2T3E3_FRAMER_VAL_E3_RX_COFA_INTERRUPT_ENABLE |
+                 SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_ENABLE |
+                 SBE_2T3E3_FRAMER_VAL_E3_RX_LOF_INTERRUPT_ENABLE |
+                 SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_ENABLE |
+                 SBE_2T3E3_FRAMER_VAL_E3_RX_AIS_INTERRUPT_ENABLE);*/
+#endif
+
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_2);
+#if 0
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_2,
+                              SBE_2T3E3_FRAMER_VAL_E3_RX_FEBE_INTERRUPT_ENABLE |
+                              SBE_2T3E3_FRAMER_VAL_E3_RX_FERF_INTERRUPT_ENABLE |
+                              SBE_2T3E3_FRAMER_VAL_E3_RX_FRAMING_BYTE_ERROR_INTERRUPT_ENABLE);
+#endif
+               break;
+
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_CONFIGURATION_STATUS);
+#if 0
+               sc->s.LOS = val & SBE_2T3E3_FRAMER_VAL_T3_RX_LOS ? 1 : 0;
+#else
+               cpld_LOS_update(sc);
+#endif
+               sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF ? 1 : 0;
+
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_STATUS);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_ENABLE,
+                              SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_ENABLE |
+                              SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_ENABLE);
+#if 0
+               /* SBE_2T3E3_FRAMER_VAL_T3_RX_CP_BIT_ERROR_INTERRUPT_ENABLE |
+                  SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_ENABLE |
+                  SBE_2T3E3_FRAMER_VAL_T3_RX_AIS_INTERRUPT_ENABLE |
+                  SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE_INTERRUPT_ENABLE |
+                  SBE_2T3E3_FRAMER_VAL_T3_RX_FERF_INTERRUPT_ENABLE |
+                  SBE_2T3E3_FRAMER_VAL_T3_RX_AIC_INTERRUPT_ENABLE |
+                  SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_ENABLE |
+                  SBE_2T3E3_FRAMER_VAL_T3_RX_P_BIT_INTERRUPT_ENABLE);*/
+#endif
+
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS);
+#if 0
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS,
+                              SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_REMOVE_INTERRUPT_ENABLE |
+                              SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_VALID_INTERRUPT_ENABLE);
+#endif
+
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL, 0);
+               break;
+
+       default:
+               return;
+       }
+
+       exar7250_read(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_STATUS);
+       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_ENABLE,
+                      SBE_2T3E3_FRAMER_VAL_RX_INTERRUPT_ENABLE |
+                      SBE_2T3E3_FRAMER_VAL_TX_INTERRUPT_ENABLE);
+}
+
+
+void exar7250_stop_intr(struct channel *sc, u32 type)
+{
+       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_ENABLE, 0);
+       exar7250_read(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_STATUS);
+
+       switch (type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_1, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_1);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_2, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_2);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_LAPD_CONTROL, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_LAPD_CONTROL);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_TX_LAPD_STATUS, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_TX_LAPD_STATUS);
+               break;
+
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_ENABLE, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_STATUS);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_TX_FEAC_CONFIGURATION_STATUS, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_TX_FEAC_CONFIGURATION_STATUS);
+               exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_TX_LAPD_STATUS, 0);
+               exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_TX_LAPD_STATUS);
+               break;
+       }
+}
+
+
+
+
+void exar7250_unipolar_onoff(struct channel *sc, u32 mode)
+{
+       switch (mode) {
+       case SBE_2T3E3_OFF:
+               exar7300_clear_bit(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL,
+                                  SBE_2T3E3_FRAMER_VAL_UNIPOLAR);
+               break;
+       case SBE_2T3E3_ON:
+               exar7300_set_bit(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL,
+                                SBE_2T3E3_FRAMER_VAL_UNIPOLAR);
+               break;
+       }
+}
+
+void exar7250_set_loopback(struct channel *sc, u32 mode)
+{
+       switch (mode) {
+       case SBE_2T3E3_FRAMER_VAL_LOOPBACK_OFF:
+               exar7300_clear_bit(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE,
+                                  SBE_2T3E3_FRAMER_VAL_LOCAL_LOOPBACK_MODE);
+               break;
+       case SBE_2T3E3_FRAMER_VAL_LOOPBACK_ON:
+               exar7300_set_bit(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE,
+                                SBE_2T3E3_FRAMER_VAL_LOCAL_LOOPBACK_MODE);
+               break;
+       }
+}
diff --git a/drivers/staging/sbe-2t3e3/exar7300.c b/drivers/staging/sbe-2t3e3/exar7300.c
new file mode 100644 (file)
index 0000000..d10d696
--- /dev/null
@@ -0,0 +1,182 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include "2t3e3.h"
+#include "ctrl.h"
+
+void exar7300_init(struct channel *sc)
+{
+       exar7300_write(sc, SBE_2T3E3_LIU_REG_REG1, 0);
+
+       /* enable line decodeer and encoder */
+       exar7300_write(sc, SBE_2T3E3_LIU_REG_REG2, 0);
+       exar7300_write(sc, SBE_2T3E3_LIU_REG_REG3, 0);
+       exar7300_write(sc, SBE_2T3E3_LIU_REG_REG4,
+                      SBE_2T3E3_LIU_VAL_T3_MODE_SELECT |
+                      SBE_2T3E3_LIU_VAL_LOOPBACK_OFF);
+}
+
+void exar7300_set_loopback(struct channel *sc, u32 mode)
+{
+       u32 val;
+
+       switch (mode) {
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_OFF:
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_REMOTE:
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_ANALOG:
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_DIGITAL:
+               break;
+       default:
+               return;
+       }
+
+       val = exar7300_read(sc, SBE_2T3E3_LIU_REG_REG4);
+       val &= ~(SBE_2T3E3_LIU_VAL_LOCAL_LOOPBACK | SBE_2T3E3_LIU_VAL_REMOTE_LOOPBACK);
+       val |= mode;
+       exar7300_write(sc, SBE_2T3E3_LIU_REG_REG4, val);
+
+#if 0
+       /* TODO - is it necessary? idea from 2T3E3_HW_Test_code */
+       switch (mode) {
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_OFF:
+               break;
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_REMOTE:
+               exar7300_receive_equalization_onoff(sc, SBE_2T3E3_ON);
+               break;
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_ANALOG:
+               exar7300_receive_equalization_onoff(sc, SBE_2T3E3_OFF);
+               break;
+       case SBE_2T3E3_LIU_VAL_LOOPBACK_DIGITAL:
+               exar7300_receive_equalization_onoff(sc, SBE_2T3E3_ON);
+               break;
+       }
+#endif
+}
+
+void exar7300_set_frame_type(struct channel *sc, u32 type)
+{
+       u32 val;
+
+       switch (type) {
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               break;
+       default:
+               return;
+       }
+
+       val = exar7300_read(sc, SBE_2T3E3_LIU_REG_REG4);
+       val &= ~(SBE_2T3E3_LIU_VAL_T3_MODE_SELECT |
+                SBE_2T3E3_LIU_VAL_E3_MODE_SELECT);
+
+       switch (type) {
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               val |= SBE_2T3E3_LIU_VAL_T3_MODE_SELECT;
+               break;
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               val |= SBE_2T3E3_LIU_VAL_E3_MODE_SELECT;
+               break;
+       default:
+               return;
+       }
+
+       exar7300_write(sc, SBE_2T3E3_LIU_REG_REG4, val);
+}
+
+
+void exar7300_transmit_all_ones_onoff(struct channel *sc, u32 mode)
+{
+       if (sc->p.transmit_all_ones == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_ON:
+               exar7300_set_bit(sc, SBE_2T3E3_LIU_REG_REG1,
+                                SBE_2T3E3_LIU_VAL_TRANSMIT_ALL_ONES);
+               break;
+       case SBE_2T3E3_OFF:
+               exar7300_clear_bit(sc, SBE_2T3E3_LIU_REG_REG1,
+                                  SBE_2T3E3_LIU_VAL_TRANSMIT_ALL_ONES);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.transmit_all_ones = mode;
+}
+
+void exar7300_receive_equalization_onoff(struct channel *sc, u32 mode)
+{
+       if (sc->p.receive_equalization == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_OFF:
+               exar7300_set_bit(sc, SBE_2T3E3_LIU_REG_REG2,
+                                SBE_2T3E3_LIU_VAL_RECEIVE_EQUALIZATION_DISABLE);
+               break;
+       case SBE_2T3E3_ON:
+               exar7300_clear_bit(sc, SBE_2T3E3_LIU_REG_REG2,
+                                  SBE_2T3E3_LIU_VAL_RECEIVE_EQUALIZATION_DISABLE);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.receive_equalization = mode;
+}
+
+void exar7300_line_build_out_onoff(struct channel *sc, u32 mode)
+{
+       if (sc->p.line_build_out == mode)
+               return;
+
+       switch (mode) {
+       case SBE_2T3E3_OFF:
+               exar7300_set_bit(sc, SBE_2T3E3_LIU_REG_REG1,
+                                SBE_2T3E3_LIU_VAL_TRANSMIT_LEVEL_SELECT);
+               exar7300_receive_equalization_onoff(sc, SBE_2T3E3_OFF);
+               break;
+       case SBE_2T3E3_ON:
+               exar7300_clear_bit(sc, SBE_2T3E3_LIU_REG_REG1,
+                                  SBE_2T3E3_LIU_VAL_TRANSMIT_LEVEL_SELECT);
+               exar7300_receive_equalization_onoff(sc, SBE_2T3E3_ON);
+               break;
+       default:
+               return;
+       }
+
+       sc->p.line_build_out = mode;
+}
+
+/* TODO - what about encoder in raw mode??? disable it too? */
+void exar7300_unipolar_onoff(struct channel *sc, u32 mode)
+{
+       switch (mode) {
+       case SBE_2T3E3_OFF:
+               exar7300_clear_bit(sc, SBE_2T3E3_LIU_REG_REG3,
+                                  SBE_2T3E3_LIU_VAL_DECODER_DISABLE);
+               exar7300_clear_bit(sc, SBE_2T3E3_LIU_REG_REG1,
+                                  SBE_2T3E3_LIU_VAL_TRANSMIT_BINARY_DATA);
+               break;
+       case SBE_2T3E3_ON:
+               exar7300_set_bit(sc, SBE_2T3E3_LIU_REG_REG3,
+                                SBE_2T3E3_LIU_VAL_DECODER_DISABLE);
+               exar7300_set_bit(sc, SBE_2T3E3_LIU_REG_REG1,
+                                SBE_2T3E3_LIU_VAL_TRANSMIT_BINARY_DATA);
+               break;
+       }
+}
diff --git a/drivers/staging/sbe-2t3e3/intr.c b/drivers/staging/sbe-2t3e3/intr.c
new file mode 100644 (file)
index 0000000..7ad1a83
--- /dev/null
@@ -0,0 +1,635 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/hdlc.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include "2t3e3.h"
+
+irqreturn_t t3e3_intr(int irq, void *dev_instance)
+{
+       struct channel *sc = dev_to_priv(dev_instance);
+       u32 val;
+       irqreturn_t ret = IRQ_NONE;
+
+       sc->interrupt_active = 1;
+
+       val = cpld_read(sc, SBE_2T3E3_CPLD_REG_PICSR);
+
+       if (val & SBE_2T3E3_CPLD_VAL_RECEIVE_LOSS_OF_SIGNAL_CHANGE) {
+               dev_dbg(&sc->pdev->dev,
+                       "Rx LOS Chng Int r=%02x (LOS|OOF=%02x)\n",
+                       val, (sc->s.LOS << 4) | sc->s.OOF);
+               cpld_LOS_update(sc);
+               ret = IRQ_HANDLED;
+       }
+
+       if (val & SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_ETHERNET_ASSERTED) {
+               dc_intr(sc);
+               ret = IRQ_HANDLED;
+       }
+
+       if (val & SBE_2T3E3_CPLD_VAL_INTERRUPT_FROM_FRAMER_ASSERTED) {
+               exar7250_intr(sc);
+               ret = IRQ_HANDLED;
+       }
+
+       /*
+         we don't care about other interrupt sources (DMO, LOS, LCV) because
+         they are handled by Framer too
+       */
+
+       sc->interrupt_active = 0;
+       return ret;
+}
+
+void dc_intr(struct channel *sc)
+{
+       u32 val;
+
+       /* disable ethernet interrupts */
+       /* grrr this clears interrupt summary bits !!! */
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_INTERRUPT_ENABLE, 0);
+
+       while ((val = dc_read(sc->addr, SBE_2T3E3_21143_REG_STATUS)) &
+              (SBE_2T3E3_21143_VAL_RECEIVE_PROCESS_STOPPED |
+               SBE_2T3E3_21143_VAL_RECEIVE_BUFFER_UNAVAILABLE |
+               SBE_2T3E3_21143_VAL_RECEIVE_INTERRUPT |
+               SBE_2T3E3_21143_VAL_TRANSMIT_UNDERFLOW |
+               SBE_2T3E3_21143_VAL_TRANSMIT_BUFFER_UNAVAILABLE |
+               SBE_2T3E3_21143_VAL_TRANSMIT_PROCESS_STOPPED |
+               SBE_2T3E3_21143_VAL_TRANSMIT_INTERRUPT)) {
+               dc_write(sc->addr, SBE_2T3E3_21143_REG_STATUS, val);
+
+               dev_dbg(&sc->pdev->dev, "SBE 2T3E3: Ethernet controller interrupt! (CSR5 = %08X)\n",
+                       val);
+
+               if (val & (SBE_2T3E3_21143_VAL_RECEIVE_INTERRUPT |
+                          SBE_2T3E3_21143_VAL_RECEIVE_BUFFER_UNAVAILABLE |
+                          SBE_2T3E3_21143_VAL_RECEIVE_PROCESS_STOPPED)) {
+                       if (val & SBE_2T3E3_21143_VAL_RECEIVE_INTERRUPT)
+                               dev_dbg(&sc->pdev->dev,
+                                       "Receive interrupt (LOS=%d, OOF=%d)\n",
+                                       sc->s.LOS, sc->s.OOF);
+                       if (val & SBE_2T3E3_21143_VAL_RECEIVE_BUFFER_UNAVAILABLE)
+                               dev_dbg(&sc->pdev->dev,
+                                       "Receive buffer unavailable\n");
+                       if (val & SBE_2T3E3_21143_VAL_RECEIVE_PROCESS_STOPPED)
+                               dev_dbg(&sc->pdev->dev,
+                                       "Receive process stopped\n");
+                       dc_intr_rx(sc);
+               }
+
+               if (val & SBE_2T3E3_21143_VAL_TRANSMIT_UNDERFLOW) {
+                       dev_dbg(&sc->pdev->dev, "Transmit underflow\n");
+                       dc_intr_tx_underflow(sc);
+               }
+
+               if (val & (SBE_2T3E3_21143_VAL_TRANSMIT_BUFFER_UNAVAILABLE |
+                          SBE_2T3E3_21143_VAL_TRANSMIT_INTERRUPT |
+                          SBE_2T3E3_21143_VAL_TRANSMIT_PROCESS_STOPPED)) {
+                       if (val & SBE_2T3E3_21143_VAL_TRANSMIT_INTERRUPT)
+                               dev_dbg(&sc->pdev->dev, "Transmit interrupt\n");
+                       if (val & SBE_2T3E3_21143_VAL_TRANSMIT_BUFFER_UNAVAILABLE)
+                               dev_dbg(&sc->pdev->dev,
+                                       "Transmit buffer unavailable\n");
+                       if (val & SBE_2T3E3_21143_VAL_TRANSMIT_PROCESS_STOPPED)
+                               dev_dbg(&sc->pdev->dev,
+                                       "Transmit process stopped\n");
+                       dc_intr_tx(sc);
+               }
+       }
+
+       /* enable ethernet interrupts */
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_INTERRUPT_ENABLE,
+                sc->ether.interrupt_enable_mask);
+}
+
+void dc_intr_rx(struct channel *sc)
+{
+       u32 current_read;
+       u32 error_mask, error;
+       t3e3_rx_desc_t *current_desc;
+       struct sk_buff *m, *m2;
+       unsigned rcv_len;
+
+       sc->rcv_count++; /* for the activity LED */
+
+       current_read = sc->ether.rx_ring_current_read;
+       dev_dbg(&sc->pdev->dev, "intr_rx current_read = %d\n", current_read);
+
+       /* when ethernet loopback is set, ignore framer signals */
+       if ((sc->p.loopback != SBE_2T3E3_LOOPBACK_ETHERNET) && sc->s.OOF) {
+               while (!(sc->ether.rx_ring[current_read].rdes0 &
+                        SBE_2T3E3_RX_DESC_21143_OWN)) {
+                       current_desc = &sc->ether.rx_ring[current_read];
+                       current_desc->rdes1 &= SBE_2T3E3_RX_DESC_END_OF_RING |
+                               SBE_2T3E3_RX_DESC_SECOND_ADDRESS_CHAINED;
+                       current_desc->rdes1 |= SBE_2T3E3_MTU;
+                       current_desc->rdes0 = SBE_2T3E3_RX_DESC_21143_OWN;
+                       current_read = (current_read + 1) % SBE_2T3E3_RX_DESC_RING_SIZE;
+               }
+               sc->ether.rx_ring_current_read = current_read;
+               return;
+       }
+
+       while (!(sc->ether.rx_ring[current_read].rdes0 &
+                SBE_2T3E3_RX_DESC_21143_OWN)) {
+               current_desc = &sc->ether.rx_ring[current_read];
+
+               dev_dbg(&sc->pdev->dev, "rdes0: %08X        rdes1: %08X\n",
+                       current_desc->rdes0, current_desc->rdes1);
+
+               m = sc->ether.rx_data[current_read];
+               rcv_len = (current_desc->rdes0 & SBE_2T3E3_RX_DESC_FRAME_LENGTH) >>
+                       SBE_2T3E3_RX_DESC_FRAME_LENGTH_SHIFT;
+
+               dev_dbg(&sc->pdev->dev, "mbuf was received (mbuf len = %d)\n",
+                       rcv_len);
+
+               switch (sc->p.crc) {
+               case SBE_2T3E3_CRC_16:
+                       rcv_len -= SBE_2T3E3_CRC16_LENGTH;
+                       break;
+               case SBE_2T3E3_CRC_32:
+                       rcv_len -= SBE_2T3E3_CRC32_LENGTH;
+                       break;
+               default:
+                       break;
+               }
+
+               if (current_desc->rdes0 & SBE_2T3E3_RX_DESC_LAST_DESC) {
+
+                       /* TODO: is collision possible? */
+                       error_mask = SBE_2T3E3_RX_DESC_DESC_ERROR |
+                               SBE_2T3E3_RX_DESC_COLLISION_SEEN |
+                               SBE_2T3E3_RX_DESC_DRIBBLING_BIT;
+
+                       switch (sc->p.frame_mode) {
+                       case SBE_2T3E3_FRAME_MODE_HDLC:
+                               error_mask |= SBE_2T3E3_RX_DESC_MII_ERROR;
+                               if (sc->p.crc == SBE_2T3E3_CRC_32)
+                                       error_mask |= SBE_2T3E3_RX_DESC_CRC_ERROR;
+                               break;
+                       case SBE_2T3E3_FRAME_MODE_TRANSPARENT:
+                       case SBE_2T3E3_FRAME_MODE_RAW:
+                               break;
+                       default:
+                               error_mask = 0;
+                       }
+
+                       if (sc->s.LOS) {
+                               error_mask &= ~(SBE_2T3E3_RX_DESC_DRIBBLING_BIT ||
+                                               SBE_2T3E3_RX_DESC_MII_ERROR);
+                       }
+
+                       error = current_desc->rdes0 & error_mask;
+                       if (error) {
+                               sc->s.in_errors++;
+                               dev_dbg(&sc->pdev->dev,
+                                       "error interrupt: NO_ERROR_MESSAGE = %d\n",
+                                       sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES ? 1 : 0);
+
+                               current_desc->rdes1 &= SBE_2T3E3_RX_DESC_END_OF_RING |
+                                       SBE_2T3E3_RX_DESC_SECOND_ADDRESS_CHAINED;
+                               current_desc->rdes1 |= SBE_2T3E3_MTU;
+                               current_desc->rdes0 = SBE_2T3E3_RX_DESC_21143_OWN;
+
+                               if (error & SBE_2T3E3_RX_DESC_DESC_ERROR) {
+                                       if (!(sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES))
+                                               dev_err(&sc->pdev->dev,
+                                                       "SBE 2T3E3: descriptor error\n");
+                                       sc->s.in_error_desc++;
+                               }
+
+                               if (error & SBE_2T3E3_RX_DESC_COLLISION_SEEN) {
+                                       if (!(sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES))
+                                               dev_err(&sc->pdev->dev,
+                                                       "SBE 2T3E3: collision seen\n");
+                                       sc->s.in_error_coll++;
+                               } else {
+                                       if (error & SBE_2T3E3_RX_DESC_DRIBBLING_BIT) {
+                                               if (!(sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES))
+                                                       dev_err(&sc->pdev->dev,
+                                                               "SBE 2T3E3: dribbling bits error\n");
+                                               sc->s.in_error_drib++;
+                                       }
+
+                                       if (error & SBE_2T3E3_RX_DESC_CRC_ERROR) {
+                                               if (!(sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES))
+                                                       dev_err(&sc->pdev->dev,
+                                                               "SBE 2T3E3: crc error\n");
+                                               sc->s.in_error_crc++;
+                                       }
+                               }
+
+                               if (error & SBE_2T3E3_RX_DESC_MII_ERROR) {
+                                       if (!(sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES))
+                                               dev_err(&sc->pdev->dev, "SBE 2T3E3: mii error\n");
+                                       sc->s.in_error_mii++;
+                               }
+
+                               current_read = (current_read + 1) % SBE_2T3E3_RX_DESC_RING_SIZE;
+                               sc->r.flags |= SBE_2T3E3_FLAG_NO_ERROR_MESSAGES;
+                               continue;
+                       }
+               }
+
+               current_desc->rdes1 &= SBE_2T3E3_RX_DESC_END_OF_RING |
+                       SBE_2T3E3_RX_DESC_SECOND_ADDRESS_CHAINED;
+               current_desc->rdes1 |= SBE_2T3E3_MTU;
+
+               if (rcv_len > 1600) {
+                       sc->s.in_errors++;
+                       sc->s.in_dropped++;
+                       if (!(sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES))
+                               dev_err(&sc->pdev->dev, "SBE 2T3E3: oversized rx: rdes0 = %08X\n",
+                                       current_desc->rdes0);
+               } else {
+                       m2 = dev_alloc_skb(MCLBYTES);
+                       if (m2 != NULL) {
+                               current_desc->rdes2 = virt_to_phys(m2->data);
+                               sc->ether.rx_data[current_read] = m2;
+                               sc->s.in_packets++;
+                               sc->s.in_bytes += rcv_len;
+                               m->dev = sc->dev;
+                               skb_put(m, rcv_len);
+                               skb_reset_mac_header(m);
+                               m->protocol = hdlc_type_trans(m, m->dev);
+                               netif_rx(m);
+
+                               /* good packet was received so we will show error messages again... */
+                               if (sc->r.flags & SBE_2T3E3_FLAG_NO_ERROR_MESSAGES) {
+                                       dev_dbg(&sc->pdev->dev,
+                                               "setting ERROR_MESSAGES->0\n");
+                                       sc->r.flags &= ~SBE_2T3E3_FLAG_NO_ERROR_MESSAGES;
+                               }
+
+                       } else {
+                               sc->s.in_errors++;
+                               sc->s.in_dropped++;
+                       }
+               }
+               current_desc->rdes0 = SBE_2T3E3_RX_DESC_21143_OWN;
+               current_read = (current_read + 1) % SBE_2T3E3_RX_DESC_RING_SIZE;
+       }
+
+       sc->ether.rx_ring_current_read = current_read;
+
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_RECEIVE_POLL_DEMAND, 0xFFFFFFFF);
+}
+
+void dc_intr_tx(struct channel *sc)
+{
+       u32 current_read, current_write;
+       u32 last_segment, error;
+       t3e3_tx_desc_t *current_desc;
+
+       spin_lock(&sc->ether.tx_lock);
+
+       current_read = sc->ether.tx_ring_current_read;
+       current_write = sc->ether.tx_ring_current_write;
+
+       while (current_read != current_write) {
+               current_desc = &sc->ether.tx_ring[current_read];
+
+               if (current_desc->tdes0 & SBE_2T3E3_RX_DESC_21143_OWN)
+                       break;
+
+               dev_dbg(&sc->pdev->dev,
+                       "txeof: tdes0 = %08X        tdes1 = %08X\n",
+                       current_desc->tdes0, current_desc->tdes1);
+
+               error = current_desc->tdes0 & (SBE_2T3E3_TX_DESC_ERROR_SUMMARY |
+                                              SBE_2T3E3_TX_DESC_TRANSMIT_JABBER_TIMEOUT |
+                                              SBE_2T3E3_TX_DESC_LOSS_OF_CARRIER |
+                                              SBE_2T3E3_TX_DESC_NO_CARRIER |
+                                              SBE_2T3E3_TX_DESC_LINK_FAIL_REPORT |
+                                              SBE_2T3E3_TX_DESC_UNDERFLOW_ERROR |
+                                              SBE_2T3E3_TX_DESC_DEFFERED);
+
+               last_segment = current_desc->tdes1 & SBE_2T3E3_TX_DESC_LAST_SEGMENT;
+
+               current_desc->tdes0 = 0;
+               current_desc->tdes1 &= SBE_2T3E3_TX_DESC_END_OF_RING |
+                       SBE_2T3E3_TX_DESC_SECOND_ADDRESS_CHAINED;
+               current_desc->tdes2 = 0;
+               sc->ether.tx_free_cnt++;
+
+               if (last_segment != SBE_2T3E3_TX_DESC_LAST_SEGMENT) {
+                       current_read = (current_read + 1) % SBE_2T3E3_TX_DESC_RING_SIZE;
+                       continue;
+               }
+
+
+               if (sc->ether.tx_data[current_read]) {
+                       sc->s.out_packets++;
+                       sc->s.out_bytes += sc->ether.tx_data[current_read]->len;
+                       dev_kfree_skb_any(sc->ether.tx_data[current_read]);
+                       sc->ether.tx_data[current_read] = NULL;
+               }
+
+               if (error > 0) {
+                       sc->s.out_errors++;
+
+                       if (error & SBE_2T3E3_TX_DESC_TRANSMIT_JABBER_TIMEOUT) {
+                               dev_err(&sc->pdev->dev, "SBE 2T3E3: transmit jabber timeout\n");
+                               sc->s.out_error_jab++;
+                       }
+
+                       if (sc->p.loopback != SBE_2T3E3_LOOPBACK_ETHERNET) {
+                               if (error & SBE_2T3E3_TX_DESC_LOSS_OF_CARRIER) {
+                                       dev_err(&sc->pdev->dev, "SBE 2T3E3: loss of carrier\n");
+                                       sc->s.out_error_lost_carr++;
+                               }
+
+                               if (error & SBE_2T3E3_TX_DESC_NO_CARRIER) {
+                                       dev_err(&sc->pdev->dev, "SBE 2T3E3: no carrier\n");
+                                       sc->s.out_error_no_carr++;
+                               }
+                       }
+
+                       if (error & SBE_2T3E3_TX_DESC_LINK_FAIL_REPORT) {
+                               dev_err(&sc->pdev->dev, "SBE 2T3E3: link fail report\n");
+                               sc->s.out_error_link_fail++;
+                       }
+
+                       if (error & SBE_2T3E3_TX_DESC_UNDERFLOW_ERROR) {
+                               dev_err(&sc->pdev->dev, "SBE 2T3E3:"
+                                       " transmission underflow error\n");
+                               sc->s.out_error_underflow++;
+                               spin_unlock(&sc->ether.tx_lock);
+
+                               dc_restart(sc);
+                               return;
+                       }
+
+                       if (error & SBE_2T3E3_TX_DESC_DEFFERED) {
+                               dev_err(&sc->pdev->dev, "SBE 2T3E3: transmission deferred\n");
+                               sc->s.out_error_dereferred++;
+                       }
+               }
+
+               current_read = (current_read + 1) % SBE_2T3E3_TX_DESC_RING_SIZE;
+       }
+
+       sc->ether.tx_ring_current_read = current_read;
+
+       /* Relieve flow control when the TX queue is drained at least half way */
+       if (sc->ether.tx_full &&
+           (sc->ether.tx_free_cnt >= (SBE_2T3E3_TX_DESC_RING_SIZE / 2))) {
+               sc->ether.tx_full = 0;
+               netif_wake_queue(sc->dev);
+       }
+       spin_unlock(&sc->ether.tx_lock);
+}
+
+
+void dc_intr_tx_underflow(struct channel *sc)
+{
+       u32 val;
+
+       dc_transmitter_onoff(sc, SBE_2T3E3_OFF);
+
+       val = dc_read(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE);
+       dc_clear_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                     SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS);
+
+       switch (val & SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS) {
+       case SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_1:
+               dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                           SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_2);
+               break;
+       case SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_2:
+               dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                           SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_3);
+               break;
+       case SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_3:
+               dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                           SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_4);
+               break;
+       case SBE_2T3E3_21143_VAL_THRESHOLD_CONTROL_BITS_4:
+       default:
+               dc_set_bits(sc->addr, SBE_2T3E3_21143_REG_OPERATION_MODE,
+                           SBE_2T3E3_21143_VAL_STORE_AND_FORWARD);
+               break;
+       }
+
+       dc_transmitter_onoff(sc, SBE_2T3E3_ON);
+}
+
+
+
+
+void exar7250_intr(struct channel *sc)
+{
+       u32 status, old_OOF;
+
+#if 0
+       /* disable interrupts */
+       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_ENABLE, 0);
+#endif
+
+       old_OOF = sc->s.OOF;
+
+       status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_STATUS);
+       dev_dbg(&sc->pdev->dev, "SBE 2T3E3: Framer interrupt! (REG[0x05] = %02X)\n", status);
+
+       switch (sc->p.frame_type) {
+       case SBE_2T3E3_FRAME_TYPE_E3_G751:
+       case SBE_2T3E3_FRAME_TYPE_E3_G832:
+               exar7250_E3_intr(sc, status);
+               break;
+
+       case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+       case SBE_2T3E3_FRAME_TYPE_T3_M13:
+               exar7250_T3_intr(sc, status);
+               break;
+
+       default:
+               break;
+       }
+
+       if (sc->s.OOF != old_OOF) {
+               if (sc->s.OOF) {
+                       if (sc->p.loopback == SBE_2T3E3_LOOPBACK_NONE) {
+                               dev_dbg(&sc->pdev->dev, "SBE 2T3E3: Disabling eth interrupts\n");
+                               /* turn off ethernet interrupts */
+                               dc_stop_intr(sc);
+                       }
+               } else if (sc->r.flags & SBE_2T3E3_FLAG_NETWORK_UP) {
+                       dev_dbg(&sc->pdev->dev, "SBE 2T3E3: Enabling eth interrupts\n");
+                       /* start interrupts */
+                       sc->s.OOF = 1;
+                       dc_intr_rx(sc);
+                       sc->s.OOF = 0;
+                       if (sc->p.receiver_on) {
+                               dc_receiver_onoff(sc, SBE_2T3E3_OFF);
+                               dc_receiver_onoff(sc, SBE_2T3E3_ON);
+                       }
+                       dc_start_intr(sc);
+               }
+       }
+#if 0
+       /* reenable interrupts */
+       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_ENABLE,
+                      SBE_2T3E3_FRAMER_VAL_RX_INTERRUPT_ENABLE |
+                      SBE_2T3E3_FRAMER_VAL_TX_INTERRUPT_ENABLE
+               );
+#endif
+}
+
+
+void exar7250_T3_intr(struct channel *sc, u32 block_status)
+{
+       u32 status, result;
+
+       if (block_status & SBE_2T3E3_FRAMER_VAL_RX_INTERRUPT_STATUS) {
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_STATUS);
+
+               if (status) {
+                       dev_dbg(&sc->pdev->dev,
+                               "Framer interrupt T3 RX (REG[0x13] = %02X)\n",
+                               status);
+
+                       result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_CONFIGURATION_STATUS);
+
+#if 0
+                       if (status & SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_STATUS) {
+                               dev_dbg(&sc->pdev->dev,
+                                       "Framer interrupt T3: LOS\n");
+                               sc->s.LOS = result & SBE_2T3E3_FRAMER_VAL_T3_RX_LOS ? 1 : 0;
+
+                       }
+#else
+                       cpld_LOS_update(sc);
+#endif
+                       if (status & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_STATUS) {
+                               sc->s.OOF = result & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF ? 1 : 0;
+                               dev_dbg(&sc->pdev->dev,
+                                       "Framer interrupt T3: OOF (%d)\n",
+                                       sc->s.OOF);
+                       }
+
+                       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_ENABLE,
+                                      SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_ENABLE |
+                                      SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_ENABLE);
+#if 0
+                       SBE_2T3E3_FRAMER_VAL_T3_RX_CP_BIT_ERROR_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_T3_RX_AIS_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_T3_RX_FERF_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_T3_RX_AIC_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_T3_RX_P_BIT_INTERRUPT_ENABLE
+#endif
+                               }
+
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS);
+               if (status) {
+                       dev_dbg(&sc->pdev->dev,
+                               "Framer interrupt T3 RX (REG[0x17] = %02X)\n",
+                               status);
+#if 0
+                       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS,
+                                      SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_REMOVE_INTERRUPT_ENABLE |
+                                      SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_VALID_INTERRUPT_ENABLE
+                               );
+#endif
+               }
+
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL);
+               if (status)
+                       dev_dbg(&sc->pdev->dev,
+                               "Framer interrupt T3 RX (REG[0x18] = %02X)\n",
+                               status);
+       }
+
+
+       if (block_status & SBE_2T3E3_FRAMER_VAL_TX_INTERRUPT_STATUS) {
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_TX_FEAC_CONFIGURATION_STATUS);
+               dev_dbg(&sc->pdev->dev, "SBE 2T3E3: Framer interrupt T3 TX (REG[0x31] = %02X)\n",
+                       status);
+
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_TX_LAPD_STATUS);
+               dev_dbg(&sc->pdev->dev, "SBE 2T3E3: Framer interrupt T3 TX (REG[0x34] = %02X)\n",
+                       status);
+       }
+}
+
+
+void exar7250_E3_intr(struct channel *sc, u32 block_status)
+{
+       u32 status, result;
+
+       if (block_status & SBE_2T3E3_FRAMER_VAL_RX_INTERRUPT_STATUS) {
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_1);
+
+               if (status) {
+                       dev_dbg(&sc->pdev->dev,
+                               "Framer interrupt E3 RX (REG[0x14] = %02X)\n",
+                               status);
+
+                       result = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_2);
+
+#if 0
+                       if (status & SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_STATUS) {
+                               dev_dbg(&sc->pdev->dev,
+                                       "Framer interrupt E3: LOS\n");
+                               sc->s.LOS = result & SBE_2T3E3_FRAMER_VAL_E3_RX_LOS ? 1 : 0;
+                       }
+#else
+                       cpld_LOS_update(sc);
+#endif
+                       if (status & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_STATUS) {
+                               sc->s.OOF = result & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF ? 1 : 0;
+                               dev_dbg(&sc->pdev->dev,
+                                       "Framer interrupt E3: OOF (%d)\n",
+                                       sc->s.OOF);
+                       }
+
+                       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_1,
+                                      SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_ENABLE |
+                                      SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_ENABLE
+                               );
+#if 0
+                       SBE_2T3E3_FRAMER_VAL_E3_RX_COFA_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_E3_RX_LOF_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_ENABLE |
+                               SBE_2T3E3_FRAMER_VAL_E3_RX_AIS_INTERRUPT_ENABLE
+#endif
+                               }
+
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_2);
+               if (status) {
+                       dev_dbg(&sc->pdev->dev,
+                               "Framer interrupt E3 RX (REG[0x15] = %02X)\n",
+                               status);
+
+#if 0
+                       exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_2,
+                                      SBE_2T3E3_FRAMER_VAL_E3_RX_FEBE_INTERRUPT_ENABLE |
+                                      SBE_2T3E3_FRAMER_VAL_E3_RX_FERF_INTERRUPT_ENABLE |
+                                      SBE_2T3E3_FRAMER_VAL_E3_RX_FRAMING_BYTE_ERROR_INTERRUPT_ENABLE);
+#endif
+               }
+
+       }
+
+       if (block_status & SBE_2T3E3_FRAMER_VAL_TX_INTERRUPT_STATUS) {
+               status = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_TX_LAPD_STATUS);
+               dev_dbg(&sc->pdev->dev, "SBE 2T3E3: Framer interrupt E3 TX (REG[0x34] = %02X)\n",
+                       status);
+       }
+}
diff --git a/drivers/staging/sbe-2t3e3/io.c b/drivers/staging/sbe-2t3e3/io.c
new file mode 100644 (file)
index 0000000..b458ff0
--- /dev/null
@@ -0,0 +1,352 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/ip.h>
+#include <asm/system.h>
+#include "2t3e3.h"
+#include "ctrl.h"
+
+/* All access to registers done via the 21143 on port 0 must be
+ * protected via the card->bootrom_lock. */
+
+/* priviate define to be used here only - must be protected by card->bootrom_lock */
+#define cpld_write_nolock(channel, reg, val)                   \
+       bootrom_write((channel), CPLD_MAP_REG(reg, channel), val)
+
+u32 cpld_read(struct channel *channel, u32 reg)
+{
+       unsigned long flags;
+       u32 val;
+
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+       val = bootrom_read((channel), CPLD_MAP_REG(reg, channel));
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+       return val;
+}
+
+/****************************************
+ * Access via BootROM port
+ ****************************************/
+
+u32 bootrom_read(struct channel *channel, u32 reg)
+{
+       unsigned long addr = channel->card->bootrom_addr;
+       u32 result;
+
+       /* select BootROM address */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_PROGRAMMING_ADDRESS, reg & 0x3FFFF);
+
+       /* select reading from BootROM */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_READ_OPERATION |
+                SBE_2T3E3_21143_VAL_BOOT_ROM_SELECT);
+
+       udelay(2); /* 20 PCI cycles */
+
+       /* read from BootROM */
+       result = dc_read(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT) & 0xff;
+
+       /* reset CSR9 */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT, 0);
+
+       return result;
+}
+
+void bootrom_write(struct channel *channel, u32 reg, u32 val)
+{
+       unsigned long addr = channel->card->bootrom_addr;
+
+       /* select BootROM address */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_PROGRAMMING_ADDRESS, reg & 0x3FFFF);
+
+       /* select writting to BootROM */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_WRITE_OPERATION |
+                SBE_2T3E3_21143_VAL_BOOT_ROM_SELECT |
+                (val & 0xff));
+
+       udelay(2); /* 20 PCI cycles */
+
+       /* reset CSR9 */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT, 0);
+}
+
+
+/****************************************
+ * Access via Serial I/O port
+ ****************************************/
+
+static u32 serialrom_read_bit(struct channel *channel)
+{
+       unsigned long addr = channel->card->bootrom_addr;
+       u32 bit;
+
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_READ_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CLOCK |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);   /* clock high */
+
+       bit = (dc_read(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT) &
+              SBE_2T3E3_21143_VAL_SERIAL_ROM_DATA_OUT) > 0 ? 1 : 0;
+
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_READ_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);   /* clock low */
+
+       return bit;
+}
+
+static void serialrom_write_bit(struct channel *channel, u32 bit)
+{
+       unsigned long addr = channel->card->bootrom_addr;
+       u32 lastbit = -1;
+
+       bit &= 1;
+
+       if (bit != lastbit) {
+               dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                        SBE_2T3E3_21143_VAL_WRITE_OPERATION |
+                        SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                        SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT |
+                        (bit << 2)); /* clock low */
+
+               lastbit = bit;
+       }
+
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_WRITE_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CLOCK |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT |
+                (bit << 2)); /* clock high */
+
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_WRITE_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT |
+                (bit << 2)); /* clock low */
+}
+
+/****************************************
+ * Access to SerialROM (eeprom)
+ ****************************************/
+
+u32 t3e3_eeprom_read_word(struct channel *channel, u32 address)
+{
+       unsigned long addr = channel->card->bootrom_addr;
+       u32 i, val;
+       unsigned long flags;
+
+       address &= 0x3f;
+
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+
+       /* select correct Serial Chip */
+       cpld_write_nolock(channel, SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT,
+                         SBE_2T3E3_CPLD_VAL_EEPROM_SELECT);
+
+       /* select reading from Serial I/O Bus */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_READ_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);        /* clock low */
+
+       /* select read operation */
+       serialrom_write_bit(channel, 0);
+       serialrom_write_bit(channel, 1);
+       serialrom_write_bit(channel, 1);
+       serialrom_write_bit(channel, 0);
+
+       for (i = 0x20; i; i >>= 1)
+               serialrom_write_bit(channel, address & i ? 1 : 0);
+
+       val = 0;
+       for (i = 0x8000; i; i >>= 1)
+               val |= (serialrom_read_bit(channel) ? i : 0);
+
+       /* Reset 21143's CSR9 */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_READ_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);        /* clock low */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT, 0);
+
+       /* Unselect Serial Chip */
+       cpld_write_nolock(channel, SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT, 0);
+
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+
+       return ntohs(val);
+}
+
+
+/****************************************
+ * Access to Framer
+ ****************************************/
+
+u32 exar7250_read(struct channel *channel, u32 reg)
+{
+       u32 result;
+       unsigned long flags;
+
+#if 0
+       switch (reg) {
+       case SBE_2T3E3_FRAMER_REG_OPERATING_MODE:
+               return channel->framer_regs[reg];
+               break;
+       default:
+       }
+#endif
+
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+
+       result = bootrom_read(channel, cpld_reg_map[SBE_2T3E3_CPLD_REG_FRAMER_BASE_ADDRESS]
+                             [channel->h.slot] + (t3e3_framer_reg_map[reg] << 2));
+
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+
+       return result;
+}
+
+void exar7250_write(struct channel *channel, u32 reg, u32 val)
+{
+       unsigned long flags;
+
+       val &= 0xff;
+       channel->framer_regs[reg] = val;
+
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+
+       bootrom_write(channel, cpld_reg_map[SBE_2T3E3_CPLD_REG_FRAMER_BASE_ADDRESS]
+                     [channel->h.slot] + (t3e3_framer_reg_map[reg] << 2), val);
+
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+}
+
+
+/****************************************
+ * Access to LIU
+ ****************************************/
+
+u32 exar7300_read(struct channel *channel, u32 reg)
+{
+       unsigned long addr = channel->card->bootrom_addr, flags;
+       u32 i, val;
+
+#if 0
+       switch (reg) {
+       case SBE_2T3E3_LIU_REG_REG1:
+       case SBE_2T3E3_LIU_REG_REG2:
+       case SBE_2T3E3_LIU_REG_REG3:
+       case SBE_2T3E3_LIU_REG_REG4:
+               return channel->liu_regs[reg];
+               break;
+       default:
+       }
+#endif
+
+       /* select correct Serial Chip */
+
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+
+       cpld_write_nolock(channel, SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT,
+                         cpld_val_map[SBE_2T3E3_CPLD_VAL_LIU_SELECT][channel->h.slot]);
+
+       /* select reading from Serial I/O Bus */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_READ_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);   /* clock low */
+
+       /* select read operation */
+       serialrom_write_bit(channel, 1);
+
+       /* Exar7300 register address is 4 bit long */
+       reg = t3e3_liu_reg_map[reg];
+       for (i = 0; i < 4; i++, reg >>= 1) /* 4 bits of SerialROM address */
+               serialrom_write_bit(channel, reg & 1);
+       for (i = 0; i < 3; i++) /* remaining 3 bits of SerialROM address */
+               serialrom_write_bit(channel, 0);
+
+       val = 0; /* Exar7300 register value is 5 bit long */
+       for (i = 0; i < 8; i++) /* 8 bits of SerialROM value */
+               val += (serialrom_read_bit(channel) << i);
+
+       /* Reset 21143's CSR9 */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_READ_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);   /* clock low */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT, 0);
+
+       /* Unselect Serial Chip */
+       cpld_write_nolock(channel, SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT, 0);
+
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+
+       return val;
+}
+
+void exar7300_write(struct channel *channel, u32 reg, u32 val)
+{
+       unsigned long addr = channel->card->bootrom_addr, flags;
+       u32 i;
+
+       channel->liu_regs[reg] = val;
+
+       /* select correct Serial Chip */
+
+       spin_lock_irqsave(&channel->card->bootrom_lock, flags);
+
+       cpld_write_nolock(channel, SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT,
+                         cpld_val_map[SBE_2T3E3_CPLD_VAL_LIU_SELECT][channel->h.slot]);
+
+       /* select writting to Serial I/O Bus */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_WRITE_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);   /* clock low */
+
+       /* select write operation */
+       serialrom_write_bit(channel, 0);
+
+       /* Exar7300 register address is 4 bit long */
+       reg = t3e3_liu_reg_map[reg];
+       for (i = 0; i < 4; i++) {       /* 4 bits */
+               serialrom_write_bit(channel, reg & 1);
+               reg >>= 1;
+       }
+       for (i = 0; i < 3; i++) /* remaining 3 bits of SerialROM address */
+               serialrom_write_bit(channel, 0);
+
+       /* Exar7300 register value is 5 bit long */
+       for (i = 0; i < 5; i++) {
+               serialrom_write_bit(channel, val & 1);
+               val >>= 1;
+       }
+       for (i = 0; i < 3; i++) /* remaining 3 bits of SerialROM value */
+               serialrom_write_bit(channel, 0);
+
+       /* Reset 21143_CSR9 */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT,
+                SBE_2T3E3_21143_VAL_WRITE_OPERATION |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_SELECT |
+                SBE_2T3E3_21143_VAL_SERIAL_ROM_CHIP_SELECT);   /* clock low */
+       dc_write(addr, SBE_2T3E3_21143_REG_BOOT_ROM_SERIAL_ROM_AND_MII_MANAGEMENT, 0);
+
+       /* Unselect Serial Chip */
+       cpld_write_nolock(channel, SBE_2T3E3_CPLD_REG_SERIAL_CHIP_SELECT, 0);
+
+       spin_unlock_irqrestore(&channel->card->bootrom_lock, flags);
+}
diff --git a/drivers/staging/sbe-2t3e3/main.c b/drivers/staging/sbe-2t3e3/main.c
new file mode 100644 (file)
index 0000000..f3dbef6
--- /dev/null
@@ -0,0 +1,171 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include "2t3e3.h"
+
+void t3e3_init(struct channel *sc)
+{
+       cpld_init(sc);
+       dc_reset(sc);
+       dc_init(sc);
+       exar7250_init(sc);
+       exar7300_init(sc);
+}
+
+int t3e3_if_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+       struct channel *sc = dev_to_priv(dev);
+       u32 current_write, last_write;
+       unsigned long flags;
+       struct sk_buff *skb2;
+
+       if (skb == NULL) {
+               sc->s.out_errors++;
+               return 0;
+       }
+
+       if (sc->p.transmitter_on != SBE_2T3E3_ON) {
+               sc->s.out_errors++;
+               sc->s.out_dropped++;
+               dev_kfree_skb_any(skb);
+               return 0;
+       }
+
+       if (sc->s.OOF && sc->p.loopback == SBE_2T3E3_LOOPBACK_NONE) {
+               sc->s.out_dropped++;
+               dev_kfree_skb_any(skb);
+               return 0;
+       }
+
+       spin_lock_irqsave(&sc->ether.tx_lock, flags);
+
+       current_write = sc->ether.tx_ring_current_write;
+       for (skb2 = skb; skb2 != NULL; skb2 = NULL) {
+               if (skb2->len) {
+                       if ((sc->ether.tx_ring[current_write].tdes1 &
+                            SBE_2T3E3_TX_DESC_BUFFER_1_SIZE) > 0)
+                               break;
+                       current_write = (current_write + 1) % SBE_2T3E3_TX_DESC_RING_SIZE;
+                       /*
+                        * Leave at least 1 tx desc free so that dc_intr_tx() can
+                        * identify empty list
+                        */
+                       if (current_write == sc->ether.tx_ring_current_read)
+                               break;
+               }
+       }
+       if (skb2 != NULL) {
+               netif_stop_queue(sc->dev);
+               sc->ether.tx_full = 1;
+               dev_dbg(&sc->pdev->dev, "SBE 2T3E3: out of descriptors\n");
+               spin_unlock_irqrestore(&sc->ether.tx_lock, flags);
+               return NETDEV_TX_BUSY;
+       }
+
+       current_write = last_write = sc->ether.tx_ring_current_write;
+       dev_dbg(&sc->pdev->dev, "sending mbuf (current_write = %d)\n",
+               current_write);
+
+       for (skb2 = skb; skb2 != NULL; skb2 = NULL) {
+               if (skb2->len) {
+                       dev_dbg(&sc->pdev->dev,
+                               "sending mbuf (len = %d, next = %p)\n",
+                               skb2->len, NULL);
+
+                       sc->ether.tx_free_cnt--;
+                       sc->ether.tx_ring[current_write].tdes0 = 0;
+                       sc->ether.tx_ring[current_write].tdes1 &=
+                               SBE_2T3E3_TX_DESC_END_OF_RING |
+                               SBE_2T3E3_TX_DESC_SECOND_ADDRESS_CHAINED;
+/* DISABLE_PADDING sometimes gets lost somehow, hands off... */
+                       sc->ether.tx_ring[current_write].tdes1 |=
+                               SBE_2T3E3_TX_DESC_DISABLE_PADDING | skb2->len;
+
+                       if (current_write == sc->ether.tx_ring_current_write) {
+                               sc->ether.tx_ring[current_write].tdes1 |=
+                                       SBE_2T3E3_TX_DESC_FIRST_SEGMENT;
+                       } else {
+                               sc->ether.tx_ring[current_write].tdes0 =
+                                       SBE_2T3E3_TX_DESC_21143_OWN;
+                       }
+
+                       sc->ether.tx_ring[current_write].tdes2 = virt_to_phys(skb2->data);
+                       sc->ether.tx_data[current_write] = NULL;
+
+                       last_write = current_write;
+                       current_write = (current_write + 1) % SBE_2T3E3_TX_DESC_RING_SIZE;
+               }
+       }
+
+       sc->ether.tx_data[last_write] = skb;
+       sc->ether.tx_ring[last_write].tdes1 |=
+               SBE_2T3E3_TX_DESC_LAST_SEGMENT |
+               SBE_2T3E3_TX_DESC_INTERRUPT_ON_COMPLETION;
+       sc->ether.tx_ring[sc->ether.tx_ring_current_write].tdes0 |=
+               SBE_2T3E3_TX_DESC_21143_OWN;
+       sc->ether.tx_ring_current_write = current_write;
+
+       dev_dbg(&sc->pdev->dev, "txput: tdes0 = %08X        tdes1 = %08X\n",
+               sc->ether.tx_ring[last_write].tdes0,
+               sc->ether.tx_ring[last_write].tdes1);
+
+       dc_write(sc->addr, SBE_2T3E3_21143_REG_TRANSMIT_POLL_DEMAND,
+                0xffffffff);
+
+       spin_unlock_irqrestore(&sc->ether.tx_lock, flags);
+       return 0;
+}
+
+
+void t3e3_read_card_serial_number(struct channel *sc)
+{
+       u32 i;
+
+       for (i = 0; i < 3; i++)
+               sc->ether.card_serial_number[i] = t3e3_eeprom_read_word(sc, 10 + i);
+
+       printk(KERN_INFO "SBE wanPMC-2T3E3 serial number: %04X%04X%04X\n",
+              sc->ether.card_serial_number[0], sc->ether.card_serial_number[1],
+              sc->ether.card_serial_number[2]);
+}
+
+/*
+  bit 0 led1 (green)
+  bit 1 led1 (yellow)
+
+  bit 2 led2 (green)
+  bit 3 led2 (yellow)
+
+  bit 4 led3 (green)
+  bit 5 led3 (yellow)
+
+  bit 6 led4 (green)
+  bit 7 led4 (yellow)
+*/
+
+void update_led(struct channel *sc, int blinker)
+{
+       int leds;
+       if (sc->s.LOS)
+               leds = 0; /* led1 = off */
+       else if (sc->s.OOF)
+               leds = 2; /* led1 = yellow */
+       else if ((blinker & 1) && sc->rcv_count) {
+               leds = 0; /* led1 = off */
+               sc->rcv_count = 0;
+       } else
+               leds = 1; /* led1 = green */
+       cpld_write(sc, SBE_2T3E3_CPLD_REG_LEDR, leds);
+       sc->leds = leds;
+}
diff --git a/drivers/staging/sbe-2t3e3/maps.c b/drivers/staging/sbe-2t3e3/maps.c
new file mode 100644 (file)
index 0000000..7084fbe
--- /dev/null
@@ -0,0 +1,104 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/kernel.h>
+#include "2t3e3.h"
+
+const u32 cpld_reg_map[][2] =
+{
+       { 0x0000, 0x0080 }, /* 0 - Port Control Register A (PCRA) */
+       { 0x0004, 0x0084 }, /* 1 - Port Control Register B (PCRB) */
+       { 0x0008, 0x0088 }, /* 2 - LCV Count Register (PLCR) */
+       { 0x000c, 0x008c }, /* 3 - LCV Threshold register (PLTR) */
+       { 0x0010, 0x0090 }, /* 4 - Payload Fill Register (PPFR) */
+       { 0x0200, 0x0200 }, /* 5 - Board ID / FPGA Programming Status Register */
+       { 0x0204, 0x0204 }, /* 6 - FPGA Version Register */
+       { 0x0800, 0x1000 }, /* 7 - Framer Registers Base Address */
+       { 0x2000, 0x2000 }, /* 8 - Serial Chip Select Register */
+       { 0x2004, 0x2004 }, /* 9 - Static Reset Register */
+       { 0x2008, 0x2008 }, /* 10 - Pulse Reset Register */
+       { 0x200c, 0x200c }, /* 11 - FPGA Reconfiguration Register */
+       { 0x2010, 0x2014 }, /* 12 - LED Register (LEDR) */
+       { 0x2018, 0x201c }, /* 13 - LIU Control and Status Register (PISCR) */
+       { 0x2020, 0x2024 }, /* 14 - Interrupt Enable Register (PIER) */
+       { 0x0068, 0x00e8 }, /* 15 - Port Control Register C (PCRC) */
+       { 0x006c, 0x00ec }, /* 16 - Port Bandwidth Start (PBWF) */
+       { 0x0070, 0x00f0 }, /* 17 - Port Bandwidth Stop (PBWL) */
+};
+
+const u32 cpld_val_map[][2] =
+{
+       { 0x01, 0x02 }, /* LIU1 / LIU2 select for Serial Chip Select */
+       { 0x04, 0x08 }, /* DAC1 / DAC2 select for Serial Chip Select */
+       { 0x00, 0x04 }, /* LOOP1 / LOOP2 - select of loop timing source */
+       { 0x01, 0x02 }  /* PORT1 / PORT2 - select LIU and Framer for reset */
+};
+
+const u32 t3e3_framer_reg_map[] = {
+       0x00, /* 0 - OPERATING_MODE */
+       0x01, /* 1 - IO_CONTROL */
+       0x04, /* 2 - BLOCK_INTERRUPT_ENABLE */
+       0x05, /* 3 - BLOCK_INTERRUPT_STATUS */
+       0x10, /* 4 - T3_RX_CONFIGURATION_STATUS, E3_RX_CONFIGURATION_STATUS_1 */
+       0x11, /* 5 - T3_RX_STATUS, E3_RX_CONFIGURATION_STATUS_2 */
+       0x12, /* 6 - T3_RX_INTERRUPT_ENABLE, E3_RX_INTERRUPT_ENABLE_1 */
+       0x13, /* 7 - T3_RX_INTERRUPT_STATUS, E3_RX_INTERRUPT_ENABLE_2 */
+       0x14, /* 8 - T3_RX_SYNC_DETECT_ENABLE, E3_RX_INTERRUPT_STATUS_1 */
+       0x15, /* 9 - E3_RX_INTERRUPT_STATUS_2 */
+       0x16, /* 10 - T3_RX_FEAC */
+       0x17, /* 11 - T3_RX_FEAC_INTERRUPT_ENABLE_STATUS */
+       0x18, /* 12 - T3_RX_LAPD_CONTROL, E3_RX_LAPD_CONTROL */
+       0x19, /* 13 - T3_RX_LAPD_STATUS, E3_RX_LAPD_STATUS */
+       0x1a, /* 14 - E3_RX_NR_BYTE, E3_RX_SERVICE_BITS */
+       0x1b, /* 15 - E3_RX_GC_BYTE */
+       0x30, /* 16 - T3_TX_CONFIGURATION, E3_TX_CONFIGURATION */
+       0x31, /* 17 - T3_TX_FEAC_CONFIGURATION_STATUS */
+       0x32, /* 18 - T3_TX_FEAC */
+       0x33, /* 19 - T3_TX_LAPD_CONFIGURATION, E3_TX_LAPD_CONFIGURATION */
+       0x34, /* 20 - T3_TX_LAPD_STATUS, E3_TX_LAPD_STATUS_INTERRUPT */
+       0x35, /* 21 - T3_TX_MBIT_MASK, E3_TX_GC_BYTE, E3_TX_SERVICE_BITS */
+       0x36, /* 22 - T3_TX_FBIT_MASK, E3_TX_MA_BYTE */
+       0x37, /* 23 - T3_TX_FBIT_MASK_2, E3_TX_NR_BYTE */
+       0x38, /* 24 - T3_TX_FBIT_MASK_3 */
+       0x48, /* 25 - E3_TX_FA1_ERROR_MASK, E3_TX_FAS_ERROR_MASK_UPPER */
+       0x49, /* 26 - E3_TX_FA2_ERROR_MASK, E3_TX_FAS_ERROR_MASK_LOWER */
+       0x4a, /* 27 - E3_TX_BIP8_MASK, E3_TX_BIP4_MASK */
+       0x50, /* 28 - PMON_LCV_EVENT_COUNT_MSB */
+       0x51, /* 29 - PMON_LCV_EVENT_COUNT_LSB */
+       0x52, /* 30 - PMON_FRAMING_BIT_ERROR_EVENT_COUNT_MSB */
+       0x53, /* 31 - PMON_FRAMING_BIT_ERROR_EVENT_COUNT_LSB */
+       0x54, /* 32 - PMON_PARITY_ERROR_EVENT_COUNT_MSB */
+       0x55, /* 33 - PMON_PARITY_ERROR_EVENT_COUNT_LSB */
+       0x56, /* 34 - PMON_FEBE_EVENT_COUNT_MSB */
+       0x57, /* 35 - PMON_FEBE_EVENT_COUNT_LSB */
+       0x58, /* 36 - PMON_CP_BIT_ERROR_EVENT_COUNT_MSB */
+       0x59, /* 37 - PMON_CP_BIT_ERROR_EVENT_COUNT_LSB */
+       0x6c, /* 38 - PMON_HOLDING_REGISTER */
+       0x6d, /* 39 - ONE_SECOND_ERROR_STATUS */
+       0x6e, /* 40 - LCV_ONE_SECOND_ACCUMULATOR_MSB */
+       0x6f, /* 41 - LCV_ONE_SECOND_ACCUMULATOR_LSB */
+       0x70, /* 42 - FRAME_PARITY_ERROR_ONE_SECOND_ACCUMULATOR_MSB */
+       0x71, /* 43 - FRAME_PARITY_ERROR_ONE_SECOND_ACCUMULATOR_LSB */
+       0x72, /* 44 - FRAME_CP_BIT_ERROR_ONE_SECOND_ACCUMULATOR_MSB */
+       0x73, /* 45 - FRAME_CP_BIT_ERROR_ONE_SECOND_ACCUMULATOR_LSB */
+       0x80, /* 46 - LINE_INTERFACE_DRIVE */
+       0x81  /* 47 - LINE_INTERFACE_SCAN */
+};
+
+const u32 t3e3_liu_reg_map[] =
+{
+       0x00, /* REG0 */
+       0x01, /* REG1 */
+       0x02, /* REG2 */
+       0x03, /* REG3 */
+       0x04 /* REG4 */
+};
diff --git a/drivers/staging/sbe-2t3e3/module.c b/drivers/staging/sbe-2t3e3/module.c
new file mode 100644 (file)
index 0000000..e87fe81
--- /dev/null
@@ -0,0 +1,210 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/hdlc.h>
+#include <linux/if_arp.h>
+#include <linux/interrupt.h>
+#include "2t3e3.h"
+
+static void check_leds(unsigned long arg)
+{
+       struct card *card = (struct card *)arg;
+       struct channel *channel0 = &card->channels[0];
+       static int blinker;
+
+       update_led(channel0, ++blinker);
+       if (has_two_ports(channel0->pdev))
+               update_led(&card->channels[1], blinker);
+
+       card->timer.expires = jiffies + HZ / 10;
+       add_timer(&card->timer);
+}
+
+static void t3e3_remove_channel(struct channel *channel)
+{
+       struct pci_dev *pdev = channel->pdev;
+       struct net_device *dev = channel->dev;
+
+       /* system hangs if board asserts irq while module is unloaded */
+       cpld_stop_intr(channel);
+       free_irq(dev->irq, dev);
+       dc_drop_descriptor_list(channel);
+       unregister_hdlc_device(dev);
+       free_netdev(dev);
+       pci_release_regions(pdev);
+       pci_disable_device(pdev);
+       pci_set_drvdata(pdev, NULL);
+}
+
+static int __devinit t3e3_init_channel(struct channel *channel, struct pci_dev *pdev, struct card *card)
+{
+       struct net_device *dev;
+       unsigned int val;
+       int err;
+
+       err = pci_enable_device(pdev);
+       if (err)
+               return err;
+
+       err = pci_request_regions(pdev, "SBE 2T3E3");
+       if (err)
+               goto disable;
+
+       dev = alloc_hdlcdev(channel);
+       if (!dev) {
+               printk(KERN_ERR "SBE 2T3E3" ": Out of memory\n");
+               goto free_regions;
+       }
+
+       t3e3_sc_init(channel);
+       dev_to_priv(dev) = channel;
+
+       channel->pdev = pdev;
+       channel->dev = dev;
+       channel->card = card;
+       channel->addr = pci_resource_start(pdev, 0);
+       if (pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_2T3E3_P1)
+               channel->h.slot = 1;
+       else
+               channel->h.slot = 0;
+
+       if (setup_device(dev, channel))
+               goto free_regions;
+
+       pci_read_config_dword(channel->pdev, 0x40, &val); /* mask sleep mode */
+       pci_write_config_dword(channel->pdev, 0x40, val & 0x3FFFFFFF);
+
+       pci_read_config_byte(channel->pdev, PCI_CACHE_LINE_SIZE, &channel->h.cache_size);
+       pci_read_config_dword(channel->pdev, PCI_COMMAND, &channel->h.command);
+       t3e3_init(channel);
+
+       if (request_irq(dev->irq, &t3e3_intr, IRQF_SHARED, dev->name, dev)) {
+               printk(KERN_WARNING "%s: could not get irq: %d\n", dev->name, dev->irq);
+               goto free_regions;
+       }
+
+       pci_set_drvdata(pdev, channel);
+       return 0;
+
+free_regions:
+       pci_release_regions(pdev);
+disable:
+       pci_disable_device(pdev);
+       return err;
+}
+
+static void __devexit t3e3_remove_card(struct pci_dev *pdev)
+{
+       struct channel *channel0 = pci_get_drvdata(pdev);
+       struct card *card = channel0->card;
+
+       del_timer(&card->timer);
+       if (has_two_ports(channel0->pdev)) {
+               t3e3_remove_channel(&card->channels[1]);
+               pci_dev_put(card->channels[1].pdev);
+       }
+       t3e3_remove_channel(channel0);
+       kfree(card);
+}
+
+static int __devinit t3e3_init_card(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+       /* pdev points to channel #0 */
+       struct pci_dev *pdev1 = NULL;
+       struct card *card;
+       int channels = 1, err;
+
+       if (has_two_ports(pdev)) {
+               while ((pdev1 = pci_get_subsys(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142,
+                                              PCI_VENDOR_ID_SBE, PCI_SUBDEVICE_ID_SBE_2T3E3_P1,
+                                              pdev1)))
+                       if (pdev1->bus == pdev->bus &&
+                           pdev1->devfn == pdev->devfn + 8 /* next device on the same bus */)
+                               break; /* found the second channel */
+
+               if (!pdev1) {
+                       printk(KERN_ERR "SBE 2T3E3" ": Can't find the second channel\n");
+                       return -EFAULT;
+               }
+               channels = 2;
+               /* holds the reference for pdev1 */
+       }
+
+       card = kzalloc(sizeof(struct card) + channels * sizeof(struct channel), GFP_KERNEL);
+       if (!card) {
+               printk(KERN_ERR "SBE 2T3E3" ": Out of memory\n");
+               return -ENOBUFS;
+       }
+
+       spin_lock_init(&card->bootrom_lock);
+       card->bootrom_addr = pci_resource_start(pdev, 0);
+
+       err = t3e3_init_channel(&card->channels[0], pdev, card);
+       if (err)
+               goto free_card;
+
+       if (channels == 2) {
+               err = t3e3_init_channel(&card->channels[1], pdev1, card);
+               if (err) {
+                       t3e3_remove_channel(&card->channels[0]);
+                       goto free_card;
+               }
+       }
+
+       /* start LED timer */
+       init_timer(&card->timer);
+       card->timer.function = check_leds;
+       card->timer.expires = jiffies + HZ / 10;
+       card->timer.data = (unsigned long)card;
+       add_timer(&card->timer);
+       return 0;
+
+free_card:
+       kfree(card);
+       return err;
+}
+
+static struct pci_device_id t3e3_pci_tbl[] __devinitdata = {
+       { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142,
+         PCI_VENDOR_ID_SBE, PCI_SUBDEVICE_ID_SBE_T3E3, 0, 0, 0 },
+       { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142,
+         PCI_VENDOR_ID_SBE, PCI_SUBDEVICE_ID_SBE_2T3E3_P0, 0, 0, 0 },
+       /* channel 1 will be initialized after channel 0 */
+       { 0, }
+};
+
+static struct pci_driver t3e3_pci_driver = {
+       .name     = "SBE T3E3",
+       .id_table = t3e3_pci_tbl,
+       .probe    = t3e3_init_card,
+       .remove   = t3e3_remove_card,
+};
+
+static int __init t3e3_init_module(void)
+{
+       return pci_register_driver(&t3e3_pci_driver);
+}
+
+static void __exit t3e3_cleanup_module(void)
+{
+       pci_unregister_driver(&t3e3_pci_driver);
+}
+
+module_init(t3e3_init_module);
+module_exit(t3e3_cleanup_module);
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, t3e3_pci_tbl);
diff --git a/drivers/staging/sbe-2t3e3/netdev.c b/drivers/staging/sbe-2t3e3/netdev.c
new file mode 100644 (file)
index 0000000..c7b5e8b
--- /dev/null
@@ -0,0 +1,142 @@
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include <linux/capability.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+#include <linux/hdlc.h>
+#include <linux/if_arp.h>
+#include <linux/interrupt.h>
+#include "2t3e3.h"
+
+int t3e3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+       struct channel *sc = dev_to_priv(dev);
+       int cmd_2t3e3, len, rlen;
+       t3e3_param_t param;
+       t3e3_resp_t  resp;
+       void *data = ifr->ifr_data + sizeof(cmd_2t3e3) + sizeof(len);
+
+       if (cmd == SIOCWANDEV)
+               return hdlc_ioctl(dev, ifr, cmd);
+       if (!capable(CAP_SYS_ADMIN))
+               return -EPERM;
+       if (cmd != SIOCDEVPRIVATE + 15)
+               return -EINVAL;
+
+       if (copy_from_user(&cmd_2t3e3, ifr->ifr_data, sizeof(cmd_2t3e3)))
+               return -EFAULT;
+       if (copy_from_user(&len, ifr->ifr_data + sizeof(cmd_2t3e3), sizeof(len)))
+               return -EFAULT;
+
+       if (len > sizeof(param))
+               return -EFAULT;
+
+       if (len)
+               if (copy_from_user(&param, data, len))
+                       return -EFAULT;
+
+       t3e3_if_config(sc, cmd_2t3e3, (char *)&param, &resp, &rlen);
+
+       if (rlen)
+               if (copy_to_user(data, &resp, rlen))
+                       return -EFAULT;
+
+       return 0;
+}
+
+static struct net_device_stats* t3e3_get_stats(struct net_device *dev)
+{
+       struct net_device_stats *nstats = &dev->stats;
+       struct channel *sc = dev_to_priv(dev);
+       t3e3_stats_t *stats = &sc->s;
+
+       memset(nstats, 0, sizeof(struct net_device_stats));
+       nstats->rx_packets = stats->in_packets;
+       nstats->tx_packets = stats->out_packets;
+       nstats->rx_bytes = stats->in_bytes;
+       nstats->tx_bytes = stats->out_bytes;
+
+       nstats->rx_errors = stats->in_errors;
+       nstats->tx_errors = stats->out_errors;
+       nstats->rx_crc_errors = stats->in_error_crc;
+
+
+       nstats->rx_dropped = stats->in_dropped;
+       nstats->tx_dropped = stats->out_dropped;
+       nstats->tx_carrier_errors = stats->out_error_lost_carr +
+               stats->out_error_no_carr;
+
+       return nstats;
+}
+
+int t3e3_open(struct net_device *dev)
+{
+       struct channel *sc = dev_to_priv(dev);
+       int ret = hdlc_open(dev);
+
+       if (ret)
+               return ret;
+
+       sc->r.flags |= SBE_2T3E3_FLAG_NETWORK_UP;
+       dc_start(dev_to_priv(dev));
+       netif_start_queue(dev);
+       try_module_get(THIS_MODULE);
+       return 0;
+}
+
+int t3e3_close(struct net_device *dev)
+{
+       struct channel *sc = dev_to_priv(dev);
+       hdlc_close(dev);
+       netif_stop_queue(dev);
+       dc_stop(sc);
+       sc->r.flags &= ~SBE_2T3E3_FLAG_NETWORK_UP;
+       module_put(THIS_MODULE);
+       return 0;
+}
+
+static int t3e3_attach(struct net_device *dev, unsigned short foo1,
+                      unsigned short foo2)
+{
+       return 0;
+}
+
+static const struct net_device_ops t3e3_ops = {
+       .ndo_open       = t3e3_open,
+       .ndo_stop       = t3e3_close,
+       .ndo_change_mtu = hdlc_change_mtu,
+       .ndo_start_xmit = hdlc_start_xmit,
+       .ndo_do_ioctl   = t3e3_ioctl,
+       .ndo_get_stats  = t3e3_get_stats,
+};
+
+int setup_device(struct net_device *dev, struct channel *sc)
+{
+       hdlc_device *hdlc = dev_to_hdlc(dev);
+       int retval;
+
+       dev->base_addr = pci_resource_start(sc->pdev, 0);
+       dev->irq = sc->pdev->irq;
+       dev->netdev_ops = &t3e3_ops;
+       dev->tx_queue_len = 100;
+       hdlc->xmit = t3e3_if_start_xmit;
+       hdlc->attach = t3e3_attach;
+       if ((retval = register_hdlc_device(dev))) {
+               dev_err(&sc->pdev->dev, "error registering HDLC device\n");
+               return retval;
+       }
+       return 0;
+}