config NET_VENDOR_APPLE
bool "Apple devices"
default y
- depends on (PPC_PMAC && PPC32) || MAC || ISA || EISA || MACH_IXDP2351 \
- || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440
+ depends on (PPC_PMAC && PPC32) || MAC
---help---
If you have a network (Ethernet) card belonging to this class, say Y
and read the Ethernet-HOWTO, available from
say Y and read the Ethernet-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
-config CS89x0
- tristate "CS89x0 support"
- depends on (ISA || EISA || MACH_IXDP2351 \
- || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440)
- ---help---
- Support for CS89x0 chipset based Ethernet cards. If you have a
- network (Ethernet) card of this type, say Y and read the
- Ethernet-HOWTO, available from
- <http://www.tldp.org/docs.html#howto> as well as
- <file:Documentation/networking/cs89x0.txt>.
-
- To compile this driver as a module, choose M here. The module
- will be called cs89x0.
-
-config CS89x0_NONISA_IRQ
- def_bool y
- depends on CS89x0 != n
- depends on MACH_IXDP2351 || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440
-
endif # NET_VENDOR_APPLE
obj-$(CONFIG_MACE) += mace.o
obj-$(CONFIG_BMAC) += bmac.o
obj-$(CONFIG_MAC89x0) += mac89x0.o
-obj-$(CONFIG_CS89x0) += cs89x0.o
obj-$(CONFIG_MACMACE) += macmace.o
+++ /dev/null
-/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
- * driver for linux.
- */
-
-/*
- Written 1996 by Russell Nelson, with reference to skeleton.c
- written 1993-1994 by Donald Becker.
-
- This software may be used and distributed according to the terms
- of the GNU General Public License, incorporated herein by reference.
-
- The author may be reached at nelson@crynwr.com, Crynwr
- Software, 521 Pleasant Valley Rd., Potsdam, NY 13676
-
- Changelog:
-
- Mike Cruse : mcruse@cti-ltd.com
- : Changes for Linux 2.0 compatibility.
- : Added dev_id parameter in net_interrupt(),
- : request_irq() and free_irq(). Just NULL for now.
-
- Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros
- : in net_open() and net_close() so kerneld would know
- : that the module is in use and wouldn't eject the
- : driver prematurely.
-
- Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c
- : as an example. Disabled autoprobing in init_module(),
- : not a good thing to do to other devices while Linux
- : is running from all accounts.
-
- Russ Nelson : Jul 13 1998. Added RxOnly DMA support.
-
- Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility.
- : email: ethernet@crystal.cirrus.com
-
- Alan Cox : Removed 1.2 support, added 2.1 extra counters.
-
- Andrew Morton : Kernel 2.3.48
- : Handle kmalloc() failures
- : Other resource allocation fixes
- : Add SMP locks
- : Integrate Russ Nelson's ALLOW_DMA functionality back in.
- : If ALLOW_DMA is true, make DMA runtime selectable
- : Folded in changes from Cirrus (Melody Lee
- : <klee@crystal.cirrus.com>)
- : Don't call netif_wake_queue() in net_send_packet()
- : Fixed an out-of-mem bug in dma_rx()
- : Updated Documentation/networking/cs89x0.txt
-
- Andrew Morton : Kernel 2.3.99-pre1
- : Use skb_reserve to longword align IP header (two places)
- : Remove a delay loop from dma_rx()
- : Replace '100' with HZ
- : Clean up a couple of skb API abuses
- : Added 'cs89x0_dma=N' kernel boot option
- : Correctly initialise lp->lock in non-module compile
-
- Andrew Morton : Kernel 2.3.99-pre4-1
- : MOD_INC/DEC race fix (see
- : http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html)
-
- Andrew Morton : Kernel 2.4.0-test7-pre2
- : Enhanced EEPROM support to cover more devices,
- : abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch
- : (Jason Gunthorpe <jgg@ualberta.ca>)
-
- Andrew Morton : Kernel 2.4.0-test11-pre4
- : Use dev->name in request_*() (Andrey Panin)
- : Fix an error-path memleak in init_module()
- : Preserve return value from request_irq()
- : Fix type of `media' module parm (Keith Owens)
- : Use SET_MODULE_OWNER()
- : Tidied up strange request_irq() abuse in net_open().
-
- Andrew Morton : Kernel 2.4.3-pre1
- : Request correct number of pages for DMA (Hugh Dickens)
- : Select PP_ChipID _after_ unregister_netdev in cleanup_module()
- : because unregister_netdev() calls get_stats.
- : Make `version[]' __initdata
- : Uninlined the read/write reg/word functions.
-
- Oskar Schirmer : oskar@scara.com
- : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=)
-
- Deepak Saxena : dsaxena@plexity.net
- : Intel IXDP2x01 (XScale ixp2x00 NPU) platform support
-
- Dmitry Pervushin : dpervushin@ru.mvista.com
- : PNX010X platform support
-
- Deepak Saxena : dsaxena@plexity.net
- : Intel IXDP2351 platform support
-
- Dmitry Pervushin : dpervushin@ru.mvista.com
- : PNX010X platform support
-
- Domenico Andreoli : cavokz@gmail.com
- : QQ2440 platform support
-
-*/
-
-/* Always include 'config.h' first in case the user wants to turn on
- or override something. */
-#include <linux/module.h>
-
-/*
- * Set this to zero to disable DMA code
- *
- * Note that even if DMA is turned off we still support the 'dma' and 'use_dma'
- * module options so we don't break any startup scripts.
- */
-#ifndef CONFIG_ISA_DMA_API
-#define ALLOW_DMA 0
-#else
-#define ALLOW_DMA 1
-#endif
-
-/*
- * Set this to zero to remove all the debug statements via
- * dead code elimination
- */
-#define DEBUGGING 1
-
-/*
- Sources:
-
- Crynwr packet driver epktisa.
-
- Crystal Semiconductor data sheets.
-
-*/
-
-#include <linux/errno.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/fcntl.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/in.h>
-#include <linux/skbuff.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-#include <linux/gfp.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#if ALLOW_DMA
-#include <asm/dma.h>
-#endif
-
-#include "cs89x0.h"
-
-static char version[] __initdata =
-"cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton\n";
-
-#define DRV_NAME "cs89x0"
-
-/* First, a few definitions that the brave might change.
- A zero-terminated list of I/O addresses to be probed. Some special flags..
- Addr & 1 = Read back the address port, look for signature and reset
- the page window before probing
- Addr & 3 = Reset the page window and probe
- The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
- but it is possible that a Cirrus board could be plugged into the ISA
- slots. */
-/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
- them to system IRQ numbers. This mapping is card specific and is set to
- the configuration of the Cirrus Eval board for this chip. */
-#if defined(CONFIG_MACH_IXDP2351)
-static unsigned int netcard_portlist[] __used __initdata = {IXDP2351_VIRT_CS8900_BASE, 0};
-static unsigned int cs8900_irq_map[] = {IRQ_IXDP2351_CS8900, 0, 0, 0};
-#elif defined(CONFIG_ARCH_IXDP2X01)
-static unsigned int netcard_portlist[] __used __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0};
-static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0};
-#elif defined(CONFIG_MACH_QQ2440)
-#include <mach/qq2440.h>
-static unsigned int netcard_portlist[] __used __initdata = { QQ2440_CS8900_VIRT_BASE + 0x300, 0 };
-static unsigned int cs8900_irq_map[] = { QQ2440_CS8900_IRQ, 0, 0, 0 };
-#elif defined(CONFIG_MACH_MX31ADS)
-#include <mach/board-mx31ads.h>
-static unsigned int netcard_portlist[] __used __initdata = {
- PBC_BASE_ADDRESS + PBC_CS8900A_IOBASE + 0x300, 0
-};
-static unsigned cs8900_irq_map[] = {EXPIO_INT_ENET_INT, 0, 0, 0};
-#else
-static unsigned int netcard_portlist[] __used __initdata =
- { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
-static unsigned int cs8900_irq_map[] = {10,11,12,5};
-#endif
-
-#if DEBUGGING
-static unsigned int net_debug = DEBUGGING;
-#else
-#define net_debug 0 /* gcc will remove all the debug code for us */
-#endif
-
-/* The number of low I/O ports used by the ethercard. */
-#define NETCARD_IO_EXTENT 16
-
-/* we allow the user to override various values normally set in the EEPROM */
-#define FORCE_RJ45 0x0001 /* pick one of these three */
-#define FORCE_AUI 0x0002
-#define FORCE_BNC 0x0004
-
-#define FORCE_AUTO 0x0010 /* pick one of these three */
-#define FORCE_HALF 0x0020
-#define FORCE_FULL 0x0030
-
-/* Information that need to be kept for each board. */
-struct net_local {
- int chip_type; /* one of: CS8900, CS8920, CS8920M */
- char chip_revision; /* revision letter of the chip ('A'...) */
- int send_cmd; /* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */
- int auto_neg_cnf; /* auto-negotiation word from EEPROM */
- int adapter_cnf; /* adapter configuration from EEPROM */
- int isa_config; /* ISA configuration from EEPROM */
- int irq_map; /* IRQ map from EEPROM */
- int rx_mode; /* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */
- int curr_rx_cfg; /* a copy of PP_RxCFG */
- int linectl; /* either 0 or LOW_RX_SQUELCH, depending on configuration. */
- int send_underrun; /* keep track of how many underruns in a row we get */
- int force; /* force various values; see FORCE* above. */
- spinlock_t lock;
-#if ALLOW_DMA
- int use_dma; /* Flag: we're using dma */
- int dma; /* DMA channel */
- int dmasize; /* 16 or 64 */
- unsigned char *dma_buff; /* points to the beginning of the buffer */
- unsigned char *end_dma_buff; /* points to the end of the buffer */
- unsigned char *rx_dma_ptr; /* points to the next packet */
-#endif
-};
-
-/* Index to functions, as function prototypes. */
-
-static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular);
-static int net_open(struct net_device *dev);
-static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev);
-static irqreturn_t net_interrupt(int irq, void *dev_id);
-static void set_multicast_list(struct net_device *dev);
-static void net_timeout(struct net_device *dev);
-static void net_rx(struct net_device *dev);
-static int net_close(struct net_device *dev);
-static struct net_device_stats *net_get_stats(struct net_device *dev);
-static void reset_chip(struct net_device *dev);
-static int get_eeprom_data(struct net_device *dev, int off, int len, int *buffer);
-static int get_eeprom_cksum(int off, int len, int *buffer);
-static int set_mac_address(struct net_device *dev, void *addr);
-static void count_rx_errors(int status, struct net_device *dev);
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void net_poll_controller(struct net_device *dev);
-#endif
-#if ALLOW_DMA
-static void get_dma_channel(struct net_device *dev);
-static void release_dma_buff(struct net_local *lp);
-#endif
-
-/* Example routines you must write ;->. */
-#define tx_done(dev) 1
-
-/*
- * Permit 'cs89x0_dma=N' in the kernel boot environment
- */
-#if !defined(MODULE) && (ALLOW_DMA != 0)
-static int g_cs89x0_dma;
-
-static int __init dma_fn(char *str)
-{
- g_cs89x0_dma = simple_strtol(str,NULL,0);
- return 1;
-}
-
-__setup("cs89x0_dma=", dma_fn);
-#endif /* !defined(MODULE) && (ALLOW_DMA != 0) */
-
-#ifndef MODULE
-static int g_cs89x0_media__force;
-
-static int __init media_fn(char *str)
-{
- if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45;
- else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI;
- else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC;
- return 1;
-}
-
-__setup("cs89x0_media=", media_fn);
-
-
-/* Check for a network adaptor of this type, and return '0' iff one exists.
- If dev->base_addr == 0, probe all likely locations.
- If dev->base_addr == 1, always return failure.
- If dev->base_addr == 2, allocate space for the device and return success
- (detachable devices only).
- Return 0 on success.
- */
-
-struct net_device * __init cs89x0_probe(int unit)
-{
- struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
- unsigned *port;
- int err = 0;
- int irq;
- int io;
-
- if (!dev)
- return ERR_PTR(-ENODEV);
-
- sprintf(dev->name, "eth%d", unit);
- netdev_boot_setup_check(dev);
- io = dev->base_addr;
- irq = dev->irq;
-
- if (net_debug)
- printk("cs89x0:cs89x0_probe(0x%x)\n", io);
-
- if (io > 0x1ff) { /* Check a single specified location. */
- err = cs89x0_probe1(dev, io, 0);
- } else if (io != 0) { /* Don't probe at all. */
- err = -ENXIO;
- } else {
- for (port = netcard_portlist; *port; port++) {
- if (cs89x0_probe1(dev, *port, 0) == 0)
- break;
- dev->irq = irq;
- }
- if (!*port)
- err = -ENODEV;
- }
- if (err)
- goto out;
- return dev;
-out:
- free_netdev(dev);
- printk(KERN_WARNING "cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n");
- return ERR_PTR(err);
-}
-#endif
-
-#if defined(CONFIG_MACH_IXDP2351)
-static u16
-readword(unsigned long base_addr, int portno)
-{
- return __raw_readw(base_addr + (portno << 1));
-}
-
-static void
-writeword(unsigned long base_addr, int portno, u16 value)
-{
- __raw_writew(value, base_addr + (portno << 1));
-}
-#elif defined(CONFIG_ARCH_IXDP2X01)
-static u16
-readword(unsigned long base_addr, int portno)
-{
- return __raw_readl(base_addr + (portno << 1));
-}
-
-static void
-writeword(unsigned long base_addr, int portno, u16 value)
-{
- __raw_writel(value, base_addr + (portno << 1));
-}
-#else
-static u16
-readword(unsigned long base_addr, int portno)
-{
- return inw(base_addr + portno);
-}
-
-static void
-writeword(unsigned long base_addr, int portno, u16 value)
-{
- outw(value, base_addr + portno);
-}
-#endif
-
-static void
-readwords(unsigned long base_addr, int portno, void *buf, int length)
-{
- u8 *buf8 = (u8 *)buf;
-
- do {
- u16 tmp16;
-
- tmp16 = readword(base_addr, portno);
- *buf8++ = (u8)tmp16;
- *buf8++ = (u8)(tmp16 >> 8);
- } while (--length);
-}
-
-static void
-writewords(unsigned long base_addr, int portno, void *buf, int length)
-{
- u8 *buf8 = (u8 *)buf;
-
- do {
- u16 tmp16;
-
- tmp16 = *buf8++;
- tmp16 |= (*buf8++) << 8;
- writeword(base_addr, portno, tmp16);
- } while (--length);
-}
-
-static u16
-readreg(struct net_device *dev, u16 regno)
-{
- writeword(dev->base_addr, ADD_PORT, regno);
- return readword(dev->base_addr, DATA_PORT);
-}
-
-static void
-writereg(struct net_device *dev, u16 regno, u16 value)
-{
- writeword(dev->base_addr, ADD_PORT, regno);
- writeword(dev->base_addr, DATA_PORT, value);
-}
-
-static int __init
-wait_eeprom_ready(struct net_device *dev)
-{
- int timeout = jiffies;
- /* check to see if the EEPROM is ready, a timeout is used -
- just in case EEPROM is ready when SI_BUSY in the
- PP_SelfST is clear */
- while(readreg(dev, PP_SelfST) & SI_BUSY)
- if (jiffies - timeout >= 40)
- return -1;
- return 0;
-}
-
-static int __init
-get_eeprom_data(struct net_device *dev, int off, int len, int *buffer)
-{
- int i;
-
- if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len);
- for (i = 0; i < len; i++) {
- if (wait_eeprom_ready(dev) < 0) return -1;
- /* Now send the EEPROM read command and EEPROM location to read */
- writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD);
- if (wait_eeprom_ready(dev) < 0) return -1;
- buffer[i] = readreg(dev, PP_EEData);
- if (net_debug > 3) printk("%04x ", buffer[i]);
- }
- if (net_debug > 3) printk("\n");
- return 0;
-}
-
-static int __init
-get_eeprom_cksum(int off, int len, int *buffer)
-{
- int i, cksum;
-
- cksum = 0;
- for (i = 0; i < len; i++)
- cksum += buffer[i];
- cksum &= 0xffff;
- if (cksum == 0)
- return 0;
- return -1;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling receive - used by netconsole and other diagnostic tools
- * to allow network i/o with interrupts disabled.
- */
-static void net_poll_controller(struct net_device *dev)
-{
- disable_irq(dev->irq);
- net_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static const struct net_device_ops net_ops = {
- .ndo_open = net_open,
- .ndo_stop = net_close,
- .ndo_tx_timeout = net_timeout,
- .ndo_start_xmit = net_send_packet,
- .ndo_get_stats = net_get_stats,
- .ndo_set_rx_mode = set_multicast_list,
- .ndo_set_mac_address = set_mac_address,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = net_poll_controller,
-#endif
- .ndo_change_mtu = eth_change_mtu,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-/* This is the real probe routine. Linux has a history of friendly device
- probes on the ISA bus. A good device probes avoids doing writes, and
- verifies that the correct device exists and functions.
- Return 0 on success.
- */
-
-static int __init
-cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
-{
- struct net_local *lp = netdev_priv(dev);
- static unsigned version_printed;
- int i;
- int tmp;
- unsigned rev_type = 0;
- int eeprom_buff[CHKSUM_LEN];
- int retval;
-
- /* Initialize the device structure. */
- if (!modular) {
- memset(lp, 0, sizeof(*lp));
- spin_lock_init(&lp->lock);
-#ifndef MODULE
-#if ALLOW_DMA
- if (g_cs89x0_dma) {
- lp->use_dma = 1;
- lp->dma = g_cs89x0_dma;
- lp->dmasize = 16; /* Could make this an option... */
- }
-#endif
- lp->force = g_cs89x0_media__force;
-#endif
-
-#if defined(CONFIG_MACH_QQ2440)
- lp->force |= FORCE_RJ45 | FORCE_FULL;
-#endif
- }
-
- /* Grab the region so we can find another board if autoIRQ fails. */
- /* WTF is going on here? */
- if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) {
- printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n",
- DRV_NAME, ioaddr, NETCARD_IO_EXTENT);
- retval = -EBUSY;
- goto out1;
- }
-
- /* if they give us an odd I/O address, then do ONE write to
- the address port, to get it back to address zero, where we
- expect to find the EISA signature word. An IO with a base of 0x3
- will skip the test for the ADD_PORT. */
- if (ioaddr & 1) {
- if (net_debug > 1)
- printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr);
- if ((ioaddr & 2) != 2)
- if ((readword(ioaddr & ~3, ADD_PORT) & ADD_MASK) != ADD_SIG) {
- printk(KERN_ERR "%s: bad signature 0x%x\n",
- dev->name, readword(ioaddr & ~3, ADD_PORT));
- retval = -ENODEV;
- goto out2;
- }
- }
-
- ioaddr &= ~3;
- printk(KERN_DEBUG "PP_addr at %x[%x]: 0x%x\n",
- ioaddr, ADD_PORT, readword(ioaddr, ADD_PORT));
- writeword(ioaddr, ADD_PORT, PP_ChipID);
-
- tmp = readword(ioaddr, DATA_PORT);
- if (tmp != CHIP_EISA_ID_SIG) {
- printk(KERN_DEBUG "%s: incorrect signature at %x[%x]: 0x%x!="
- CHIP_EISA_ID_SIG_STR "\n",
- dev->name, ioaddr, DATA_PORT, tmp);
- retval = -ENODEV;
- goto out2;
- }
-
- /* Fill in the 'dev' fields. */
- dev->base_addr = ioaddr;
-
- /* get the chip type */
- rev_type = readreg(dev, PRODUCT_ID_ADD);
- lp->chip_type = rev_type &~ REVISON_BITS;
- lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
-
- /* Check the chip type and revision in order to set the correct send command
- CS8920 revision C and CS8900 revision F can use the faster send. */
- lp->send_cmd = TX_AFTER_381;
- if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')
- lp->send_cmd = TX_NOW;
- if (lp->chip_type != CS8900 && lp->chip_revision >= 'C')
- lp->send_cmd = TX_NOW;
-
- if (net_debug && version_printed++ == 0)
- printk(version);
-
- printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ",
- dev->name,
- lp->chip_type==CS8900?'0':'2',
- lp->chip_type==CS8920M?"M":"",
- lp->chip_revision,
- dev->base_addr);
-
- reset_chip(dev);
-
- /* Here we read the current configuration of the chip. If there
- is no Extended EEPROM then the idea is to not disturb the chip
- configuration, it should have been correctly setup by automatic
- EEPROM read on reset. So, if the chip says it read the EEPROM
- the driver will always do *something* instead of complain that
- adapter_cnf is 0. */
-
-
- if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) ==
- (EEPROM_OK|EEPROM_PRESENT)) {
- /* Load the MAC. */
- for (i=0; i < ETH_ALEN/2; i++) {
- unsigned int Addr;
- Addr = readreg(dev, PP_IA+i*2);
- dev->dev_addr[i*2] = Addr & 0xFF;
- dev->dev_addr[i*2+1] = Addr >> 8;
- }
-
- /* Load the Adapter Configuration.
- Note: Barring any more specific information from some
- other source (ie EEPROM+Schematics), we would not know
- how to operate a 10Base2 interface on the AUI port.
- However, since we do read the status of HCB1 and use
- settings that always result in calls to control_dc_dc(dev,0)
- a BNC interface should work if the enable pin
- (dc/dc converter) is on HCB1. It will be called AUI
- however. */
-
- lp->adapter_cnf = 0;
- i = readreg(dev, PP_LineCTL);
- /* Preserve the setting of the HCB1 pin. */
- if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL))
- lp->adapter_cnf |= A_CNF_DC_DC_POLARITY;
- /* Save the sqelch bit */
- if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH)
- lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH;
- /* Check if the card is in 10Base-t only mode */
- if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0)
- lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T;
- /* Check if the card is in AUI only mode */
- if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY)
- lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI;
- /* Check if the card is in Auto mode. */
- if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET)
- lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T |
- A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO;
-
- if (net_debug > 1)
- printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n",
- dev->name, i, lp->adapter_cnf);
-
- /* IRQ. Other chips already probe, see below. */
- if (lp->chip_type == CS8900)
- lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK;
-
- printk( "[Cirrus EEPROM] ");
- }
-
- printk("\n");
-
- /* First check to see if an EEPROM is attached. */
-
- if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
- printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n");
- else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
- printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n");
- } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
- /* Check if the chip was able to read its own configuration starting
- at 0 in the EEPROM*/
- if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) !=
- (EEPROM_OK|EEPROM_PRESENT))
- printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n");
-
- } else {
- /* This reads an extended EEPROM that is not documented
- in the CS8900 datasheet. */
-
- /* get transmission control word but keep the autonegotiation bits */
- if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2];
- /* Store adapter configuration */
- if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2];
- /* Store ISA configuration */
- lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2];
- dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8;
-
- /* eeprom_buff has 32-bit ints, so we can't just memcpy it */
- /* store the initial memory base address */
- for (i = 0; i < ETH_ALEN/2; i++) {
- dev->dev_addr[i*2] = eeprom_buff[i];
- dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8;
- }
- if (net_debug > 1)
- printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n",
- dev->name, lp->adapter_cnf);
- }
-
- /* allow them to force multiple transceivers. If they force multiple, autosense */
- {
- int count = 0;
- if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; }
- if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; }
- if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; }
- if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; }
- else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; }
- else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; }
- else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; }
- }
-
- if (net_debug > 1)
- printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n",
- dev->name, lp->force, lp->adapter_cnf);
-
- /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */
-
- /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */
-
- /* FIXME: we don't set the Ethernet address on the command line. Use
- ifconfig IFACE hw ether AABBCCDDEEFF */
-
- printk(KERN_INFO "cs89x0 media %s%s%s",
- (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"",
- (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"",
- (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":"");
-
- lp->irq_map = 0xffff;
-
- /* If this is a CS8900 then no pnp soft */
- if (lp->chip_type != CS8900 &&
- /* Check if the ISA IRQ has been set */
- (i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
- (i != 0 && i < CS8920_NO_INTS))) {
- if (!dev->irq)
- dev->irq = i;
- } else {
- i = lp->isa_config & INT_NO_MASK;
- if (lp->chip_type == CS8900) {
-#ifdef CONFIG_CS89x0_NONISA_IRQ
- i = cs8900_irq_map[0];
-#else
- /* Translate the IRQ using the IRQ mapping table. */
- if (i >= ARRAY_SIZE(cs8900_irq_map))
- printk("\ncs89x0: invalid ISA interrupt number %d\n", i);
- else
- i = cs8900_irq_map[i];
-
- lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */
- } else {
- int irq_map_buff[IRQ_MAP_LEN/2];
-
- if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA,
- IRQ_MAP_LEN/2,
- irq_map_buff) >= 0) {
- if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT)
- lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8);
- }
-#endif
- }
- if (!dev->irq)
- dev->irq = i;
- }
-
- printk(" IRQ %d", dev->irq);
-
-#if ALLOW_DMA
- if (lp->use_dma) {
- get_dma_channel(dev);
- printk(", DMA %d", dev->dma);
- }
- else
-#endif
- {
- printk(", programmed I/O");
- }
-
- /* print the ethernet address. */
- printk(", MAC %pM", dev->dev_addr);
-
- dev->netdev_ops = &net_ops;
- dev->watchdog_timeo = HZ;
-
- printk("\n");
- if (net_debug)
- printk("cs89x0_probe1() successful\n");
-
- retval = register_netdev(dev);
- if (retval)
- goto out3;
- return 0;
-out3:
- writeword(dev->base_addr, ADD_PORT, PP_ChipID);
-out2:
- release_region(ioaddr & ~3, NETCARD_IO_EXTENT);
-out1:
- return retval;
-}
-
-
-/*********************************
- * This page contains DMA routines
-**********************************/
-
-#if ALLOW_DMA
-
-#define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17)
-
-static void
-get_dma_channel(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- if (lp->dma) {
- dev->dma = lp->dma;
- lp->isa_config |= ISA_RxDMA;
- } else {
- if ((lp->isa_config & ANY_ISA_DMA) == 0)
- return;
- dev->dma = lp->isa_config & DMA_NO_MASK;
- if (lp->chip_type == CS8900)
- dev->dma += 5;
- if (dev->dma < 5 || dev->dma > 7) {
- lp->isa_config &= ~ANY_ISA_DMA;
- return;
- }
- }
-}
-
-static void
-write_dma(struct net_device *dev, int chip_type, int dma)
-{
- struct net_local *lp = netdev_priv(dev);
- if ((lp->isa_config & ANY_ISA_DMA) == 0)
- return;
- if (chip_type == CS8900) {
- writereg(dev, PP_CS8900_ISADMA, dma-5);
- } else {
- writereg(dev, PP_CS8920_ISADMA, dma);
- }
-}
-
-static void
-set_dma_cfg(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- if (lp->use_dma) {
- if ((lp->isa_config & ANY_ISA_DMA) == 0) {
- if (net_debug > 3)
- printk("set_dma_cfg(): no DMA\n");
- return;
- }
- if (lp->isa_config & ISA_RxDMA) {
- lp->curr_rx_cfg |= RX_DMA_ONLY;
- if (net_debug > 3)
- printk("set_dma_cfg(): RX_DMA_ONLY\n");
- } else {
- lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */
- if (net_debug > 3)
- printk("set_dma_cfg(): AUTO_RX_DMA\n");
- }
- }
-}
-
-static int
-dma_bufcfg(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- if (lp->use_dma)
- return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0;
- else
- return 0;
-}
-
-static int
-dma_busctl(struct net_device *dev)
-{
- int retval = 0;
- struct net_local *lp = netdev_priv(dev);
- if (lp->use_dma) {
- if (lp->isa_config & ANY_ISA_DMA)
- retval |= RESET_RX_DMA; /* Reset the DMA pointer */
- if (lp->isa_config & DMA_BURST)
- retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */
- if (lp->dmasize == 64)
- retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */
- retval |= MEMORY_ON; /* we need memory enabled to use DMA. */
- }
- return retval;
-}
-
-static void
-dma_rx(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- struct sk_buff *skb;
- int status, length;
- unsigned char *bp = lp->rx_dma_ptr;
-
- status = bp[0] + (bp[1]<<8);
- length = bp[2] + (bp[3]<<8);
- bp += 4;
- if (net_debug > 5) {
- printk( "%s: receiving DMA packet at %lx, status %x, length %x\n",
- dev->name, (unsigned long)bp, status, length);
- }
- if ((status & RX_OK) == 0) {
- count_rx_errors(status, dev);
- goto skip_this_frame;
- }
-
- /* Malloc up new buffer. */
- skb = dev_alloc_skb(length + 2);
- if (skb == NULL) {
- if (net_debug) /* I don't think we want to do this to a stressed system */
- printk("%s: Memory squeeze, dropping packet.\n", dev->name);
- dev->stats.rx_dropped++;
-
- /* AKPM: advance bp to the next frame */
-skip_this_frame:
- bp += (length + 3) & ~3;
- if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
- lp->rx_dma_ptr = bp;
- return;
- }
- skb_reserve(skb, 2); /* longword align L3 header */
-
- if (bp + length > lp->end_dma_buff) {
- int semi_cnt = lp->end_dma_buff - bp;
- memcpy(skb_put(skb,semi_cnt), bp, semi_cnt);
- memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff,
- length - semi_cnt);
- } else {
- memcpy(skb_put(skb,length), bp, length);
- }
- bp += (length + 3) & ~3;
- if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
- lp->rx_dma_ptr = bp;
-
- if (net_debug > 3) {
- printk( "%s: received %d byte DMA packet of type %x\n",
- dev->name, length,
- (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
- }
- skb->protocol=eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += length;
-}
-
-#endif /* ALLOW_DMA */
-
-static void __init reset_chip(struct net_device *dev)
-{
-#if !defined(CONFIG_MACH_MX31ADS)
-#if !defined(CS89x0_NONISA_IRQ)
- struct net_local *lp = netdev_priv(dev);
- int ioaddr = dev->base_addr;
-#endif /* CS89x0_NONISA_IRQ */
- int reset_start_time;
-
- writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET);
-
- /* wait 30 ms */
- msleep(30);
-
-#if !defined(CS89x0_NONISA_IRQ)
- if (lp->chip_type != CS8900) {
- /* Hardware problem requires PNP registers to be reconfigured after a reset */
- writeword(ioaddr, ADD_PORT, PP_CS8920_ISAINT);
- outb(dev->irq, ioaddr + DATA_PORT);
- outb(0, ioaddr + DATA_PORT + 1);
-
- writeword(ioaddr, ADD_PORT, PP_CS8920_ISAMemB);
- outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT);
- outb((dev->mem_start >> 8) & 0xff, ioaddr + DATA_PORT + 1);
- }
-#endif /* CS89x0_NONISA_IRQ */
-
- /* Wait until the chip is reset */
- reset_start_time = jiffies;
- while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2)
- ;
-#endif /* !CONFIG_MACH_MX31ADS */
-}
-
-
-static void
-control_dc_dc(struct net_device *dev, int on_not_off)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned int selfcontrol;
- int timenow = jiffies;
- /* control the DC to DC convertor in the SelfControl register.
- Note: This is hooked up to a general purpose pin, might not
- always be a DC to DC convertor. */
-
- selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */
- if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off)
- selfcontrol |= HCB1;
- else
- selfcontrol &= ~HCB1;
- writereg(dev, PP_SelfCTL, selfcontrol);
-
- /* Wait for the DC/DC converter to power up - 500ms */
- while (jiffies - timenow < HZ)
- ;
-}
-
-#define DETECTED_NONE 0
-#define DETECTED_RJ45H 1
-#define DETECTED_RJ45F 2
-#define DETECTED_AUI 3
-#define DETECTED_BNC 4
-
-static int
-detect_tp(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- int timenow = jiffies;
- int fdx;
-
- if (net_debug > 1) printk("%s: Attempting TP\n", dev->name);
-
- /* If connected to another full duplex capable 10-Base-T card the link pulses
- seem to be lost when the auto detect bit in the LineCTL is set.
- To overcome this the auto detect bit will be cleared whilst testing the
- 10-Base-T interface. This would not be necessary for the sparrow chip but
- is simpler to do it anyway. */
- writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY);
- control_dc_dc(dev, 0);
-
- /* Delay for the hardware to work out if the TP cable is present - 150ms */
- for (timenow = jiffies; jiffies - timenow < 15; )
- ;
- if ((readreg(dev, PP_LineST) & LINK_OK) == 0)
- return DETECTED_NONE;
-
- if (lp->chip_type == CS8900) {
- switch (lp->force & 0xf0) {
-#if 0
- case FORCE_AUTO:
- printk("%s: cs8900 doesn't autonegotiate\n",dev->name);
- return DETECTED_NONE;
-#endif
- /* CS8900 doesn't support AUTO, change to HALF*/
- case FORCE_AUTO:
- lp->force &= ~FORCE_AUTO;
- lp->force |= FORCE_HALF;
- break;
- case FORCE_HALF:
- break;
- case FORCE_FULL:
- writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900);
- break;
- }
- fdx = readreg(dev, PP_TestCTL) & FDX_8900;
- } else {
- switch (lp->force & 0xf0) {
- case FORCE_AUTO:
- lp->auto_neg_cnf = AUTO_NEG_ENABLE;
- break;
- case FORCE_HALF:
- lp->auto_neg_cnf = 0;
- break;
- case FORCE_FULL:
- lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX;
- break;
- }
-
- writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK);
-
- if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) {
- printk(KERN_INFO "%s: negotiating duplex...\n",dev->name);
- while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) {
- if (jiffies - timenow > 4000) {
- printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n");
- break;
- }
- }
- }
- fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE;
- }
- if (fdx)
- return DETECTED_RJ45F;
- else
- return DETECTED_RJ45H;
-}
-
-/* send a test packet - return true if carrier bits are ok */
-static int
-send_test_pkt(struct net_device *dev)
-{
- char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0,
- 0, 46, /* A 46 in network order */
- 0, 0, /* DSAP=0 & SSAP=0 fields */
- 0xf3, 0 /* Control (Test Req + P bit set) */ };
- long timenow = jiffies;
-
- writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON);
-
- memcpy(test_packet, dev->dev_addr, ETH_ALEN);
- memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN);
-
- writeword(dev->base_addr, TX_CMD_PORT, TX_AFTER_ALL);
- writeword(dev->base_addr, TX_LEN_PORT, ETH_ZLEN);
-
- /* Test to see if the chip has allocated memory for the packet */
- while (jiffies - timenow < 5)
- if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW)
- break;
- if (jiffies - timenow >= 5)
- return 0; /* this shouldn't happen */
-
- /* Write the contents of the packet */
- writewords(dev->base_addr, TX_FRAME_PORT,test_packet,(ETH_ZLEN+1) >>1);
-
- if (net_debug > 1) printk("Sending test packet ");
- /* wait a couple of jiffies for packet to be received */
- for (timenow = jiffies; jiffies - timenow < 3; )
- ;
- if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) {
- if (net_debug > 1) printk("succeeded\n");
- return 1;
- }
- if (net_debug > 1) printk("failed\n");
- return 0;
-}
-
-
-static int
-detect_aui(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name);
- control_dc_dc(dev, 0);
-
- writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
-
- if (send_test_pkt(dev))
- return DETECTED_AUI;
- else
- return DETECTED_NONE;
-}
-
-static int
-detect_bnc(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
-
- if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name);
- control_dc_dc(dev, 1);
-
- writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
-
- if (send_test_pkt(dev))
- return DETECTED_BNC;
- else
- return DETECTED_NONE;
-}
-
-
-static void
-write_irq(struct net_device *dev, int chip_type, int irq)
-{
- int i;
-
- if (chip_type == CS8900) {
- /* Search the mapping table for the corresponding IRQ pin. */
- for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++)
- if (cs8900_irq_map[i] == irq)
- break;
- /* Not found */
- if (i == ARRAY_SIZE(cs8900_irq_map))
- i = 3;
- writereg(dev, PP_CS8900_ISAINT, i);
- } else {
- writereg(dev, PP_CS8920_ISAINT, irq);
- }
-}
-
-/* Open/initialize the board. This is called (in the current kernel)
- sometime after booting when the 'ifconfig' program is run.
-
- This routine should set everything up anew at each open, even
- registers that "should" only need to be set once at boot, so that
- there is non-reboot way to recover if something goes wrong.
- */
-
-/* AKPM: do we need to do any locking here? */
-
-static int
-net_open(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- int result = 0;
- int i;
- int ret;
-
- if (dev->irq < 2) {
- /* Allow interrupts to be generated by the chip */
-/* Cirrus' release had this: */
-#if 0
- writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
-#endif
-/* And 2.3.47 had this: */
- writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
-
- for (i = 2; i < CS8920_NO_INTS; i++) {
- if ((1 << i) & lp->irq_map) {
- if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) {
- dev->irq = i;
- write_irq(dev, lp->chip_type, i);
- /* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */
- break;
- }
- }
- }
-
- if (i >= CS8920_NO_INTS) {
- writereg(dev, PP_BusCTL, 0); /* disable interrupts. */
- printk(KERN_ERR "cs89x0: can't get an interrupt\n");
- ret = -EAGAIN;
- goto bad_out;
- }
- }
- else
- {
-#ifndef CONFIG_CS89x0_NONISA_IRQ
- if (((1 << dev->irq) & lp->irq_map) == 0) {
- printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
- dev->name, dev->irq, lp->irq_map);
- ret = -EAGAIN;
- goto bad_out;
- }
-#endif
-/* FIXME: Cirrus' release had this: */
- writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
-/* And 2.3.47 had this: */
-#if 0
- writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
-#endif
- write_irq(dev, lp->chip_type, dev->irq);
- ret = request_irq(dev->irq, net_interrupt, 0, dev->name, dev);
- if (ret) {
- printk(KERN_ERR "cs89x0: request_irq(%d) failed\n", dev->irq);
- goto bad_out;
- }
- }
-
-#if ALLOW_DMA
- if (lp->use_dma) {
- if (lp->isa_config & ANY_ISA_DMA) {
- unsigned long flags;
- lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL,
- get_order(lp->dmasize * 1024));
-
- if (!lp->dma_buff) {
- printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize);
- goto release_irq;
- }
- if (net_debug > 1) {
- printk( "%s: dma %lx %lx\n",
- dev->name,
- (unsigned long)lp->dma_buff,
- (unsigned long)isa_virt_to_bus(lp->dma_buff));
- }
- if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS ||
- !dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) {
- printk(KERN_ERR "%s: not usable as DMA buffer\n", dev->name);
- goto release_irq;
- }
- memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */
- if (request_dma(dev->dma, dev->name)) {
- printk(KERN_ERR "%s: cannot get dma channel %d\n", dev->name, dev->dma);
- goto release_irq;
- }
- write_dma(dev, lp->chip_type, dev->dma);
- lp->rx_dma_ptr = lp->dma_buff;
- lp->end_dma_buff = lp->dma_buff + lp->dmasize*1024;
- spin_lock_irqsave(&lp->lock, flags);
- disable_dma(dev->dma);
- clear_dma_ff(dev->dma);
- set_dma_mode(dev->dma, DMA_RX_MODE); /* auto_init as well */
- set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff));
- set_dma_count(dev->dma, lp->dmasize*1024);
- enable_dma(dev->dma);
- spin_unlock_irqrestore(&lp->lock, flags);
- }
- }
-#endif /* ALLOW_DMA */
-
- /* set the Ethernet address */
- for (i=0; i < ETH_ALEN/2; i++)
- writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
-
- /* while we're testing the interface, leave interrupts disabled */
- writereg(dev, PP_BusCTL, MEMORY_ON);
-
- /* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */
- if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
- lp->linectl = LOW_RX_SQUELCH;
- else
- lp->linectl = 0;
-
- /* check to make sure that they have the "right" hardware available */
- switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
- case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break;
- case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break;
- case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break;
- default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2);
- }
- if (!result) {
- printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name);
-release_dma:
-#if ALLOW_DMA
- free_dma(dev->dma);
-release_irq:
- release_dma_buff(lp);
-#endif
- writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
- free_irq(dev->irq, dev);
- ret = -EAGAIN;
- goto bad_out;
- }
-
- /* set the hardware to the configured choice */
- switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
- case A_CNF_MEDIA_10B_T:
- result = detect_tp(dev);
- if (result==DETECTED_NONE) {
- printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */
- }
- break;
- case A_CNF_MEDIA_AUI:
- result = detect_aui(dev);
- if (result==DETECTED_NONE) {
- printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */
- }
- break;
- case A_CNF_MEDIA_10B_2:
- result = detect_bnc(dev);
- if (result==DETECTED_NONE) {
- printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name);
- if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
- result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */
- }
- break;
- case A_CNF_MEDIA_AUTO:
- writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);
- if (lp->adapter_cnf & A_CNF_10B_T)
- if ((result = detect_tp(dev)) != DETECTED_NONE)
- break;
- if (lp->adapter_cnf & A_CNF_AUI)
- if ((result = detect_aui(dev)) != DETECTED_NONE)
- break;
- if (lp->adapter_cnf & A_CNF_10B_2)
- if ((result = detect_bnc(dev)) != DETECTED_NONE)
- break;
- printk(KERN_ERR "%s: no media detected\n", dev->name);
- goto release_dma;
- }
- switch(result) {
- case DETECTED_NONE:
- printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name);
- goto release_dma;
- case DETECTED_RJ45H:
- printk(KERN_INFO "%s: using half-duplex 10Base-T (RJ-45)\n", dev->name);
- break;
- case DETECTED_RJ45F:
- printk(KERN_INFO "%s: using full-duplex 10Base-T (RJ-45)\n", dev->name);
- break;
- case DETECTED_AUI:
- printk(KERN_INFO "%s: using 10Base-5 (AUI)\n", dev->name);
- break;
- case DETECTED_BNC:
- printk(KERN_INFO "%s: using 10Base-2 (BNC)\n", dev->name);
- break;
- }
-
- /* Turn on both receive and transmit operations */
- writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
-
- /* Receive only error free packets addressed to this card */
- lp->rx_mode = 0;
- writereg(dev, PP_RxCTL, DEF_RX_ACCEPT);
-
- lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL;
-
- if (lp->isa_config & STREAM_TRANSFER)
- lp->curr_rx_cfg |= RX_STREAM_ENBL;
-#if ALLOW_DMA
- set_dma_cfg(dev);
-#endif
- writereg(dev, PP_RxCFG, lp->curr_rx_cfg);
-
- writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL |
- TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
-
- writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL |
-#if ALLOW_DMA
- dma_bufcfg(dev) |
-#endif
- TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL);
-
- /* now that we've got our act together, enable everything */
- writereg(dev, PP_BusCTL, ENABLE_IRQ
- | (dev->mem_start?MEMORY_ON : 0) /* turn memory on */
-#if ALLOW_DMA
- | dma_busctl(dev)
-#endif
- );
- netif_start_queue(dev);
- if (net_debug > 1)
- printk("cs89x0: net_open() succeeded\n");
- return 0;
-bad_out:
- return ret;
-}
-
-static void net_timeout(struct net_device *dev)
-{
- /* If we get here, some higher level has decided we are broken.
- There should really be a "kick me" function call instead. */
- if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name,
- tx_done(dev) ? "IRQ conflict ?" : "network cable problem");
- /* Try to restart the adaptor. */
- netif_wake_queue(dev);
-}
-
-static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned long flags;
-
- if (net_debug > 3) {
- printk("%s: sent %d byte packet of type %x\n",
- dev->name, skb->len,
- (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
- }
-
- /* keep the upload from being interrupted, since we
- ask the chip to start transmitting before the
- whole packet has been completely uploaded. */
-
- spin_lock_irqsave(&lp->lock, flags);
- netif_stop_queue(dev);
-
- /* initiate a transmit sequence */
- writeword(dev->base_addr, TX_CMD_PORT, lp->send_cmd);
- writeword(dev->base_addr, TX_LEN_PORT, skb->len);
-
- /* Test to see if the chip has allocated memory for the packet */
- if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) {
- /*
- * Gasp! It hasn't. But that shouldn't happen since
- * we're waiting for TxOk, so return 1 and requeue this packet.
- */
-
- spin_unlock_irqrestore(&lp->lock, flags);
- if (net_debug) printk("cs89x0: Tx buffer not free!\n");
- return NETDEV_TX_BUSY;
- }
- /* Write the contents of the packet */
- writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1);
- spin_unlock_irqrestore(&lp->lock, flags);
- dev->stats.tx_bytes += skb->len;
- dev_kfree_skb (skb);
-
- /*
- * We DO NOT call netif_wake_queue() here.
- * We also DO NOT call netif_start_queue().
- *
- * Either of these would cause another bottom half run through
- * net_send_packet() before this packet has fully gone out. That causes
- * us to hit the "Gasp!" above and the send is rescheduled. it runs like
- * a dog. We just return and wait for the Tx completion interrupt handler
- * to restart the netdevice layer
- */
-
- return NETDEV_TX_OK;
-}
-
-/* The typical workload of the driver:
- Handle the network interface interrupts. */
-
-static irqreturn_t net_interrupt(int irq, void *dev_id)
-{
- struct net_device *dev = dev_id;
- struct net_local *lp;
- int ioaddr, status;
- int handled = 0;
-
- ioaddr = dev->base_addr;
- lp = netdev_priv(dev);
-
- /* we MUST read all the events out of the ISQ, otherwise we'll never
- get interrupted again. As a consequence, we can't have any limit
- on the number of times we loop in the interrupt handler. The
- hardware guarantees that eventually we'll run out of events. Of
- course, if you're on a slow machine, and packets are arriving
- faster than you can read them off, you're screwed. Hasta la
- vista, baby! */
- while ((status = readword(dev->base_addr, ISQ_PORT))) {
- if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status);
- handled = 1;
- switch(status & ISQ_EVENT_MASK) {
- case ISQ_RECEIVER_EVENT:
- /* Got a packet(s). */
- net_rx(dev);
- break;
- case ISQ_TRANSMITTER_EVENT:
- dev->stats.tx_packets++;
- netif_wake_queue(dev); /* Inform upper layers. */
- if ((status & ( TX_OK |
- TX_LOST_CRS |
- TX_SQE_ERROR |
- TX_LATE_COL |
- TX_16_COL)) != TX_OK) {
- if ((status & TX_OK) == 0)
- dev->stats.tx_errors++;
- if (status & TX_LOST_CRS)
- dev->stats.tx_carrier_errors++;
- if (status & TX_SQE_ERROR)
- dev->stats.tx_heartbeat_errors++;
- if (status & TX_LATE_COL)
- dev->stats.tx_window_errors++;
- if (status & TX_16_COL)
- dev->stats.tx_aborted_errors++;
- }
- break;
- case ISQ_BUFFER_EVENT:
- if (status & READY_FOR_TX) {
- /* we tried to transmit a packet earlier,
- but inexplicably ran out of buffers.
- That shouldn't happen since we only ever
- load one packet. Shrug. Do the right
- thing anyway. */
- netif_wake_queue(dev); /* Inform upper layers. */
- }
- if (status & TX_UNDERRUN) {
- if (net_debug > 0) printk("%s: transmit underrun\n", dev->name);
- lp->send_underrun++;
- if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381;
- else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL;
- /* transmit cycle is done, although
- frame wasn't transmitted - this
- avoids having to wait for the upper
- layers to timeout on us, in the
- event of a tx underrun */
- netif_wake_queue(dev); /* Inform upper layers. */
- }
-#if ALLOW_DMA
- if (lp->use_dma && (status & RX_DMA)) {
- int count = readreg(dev, PP_DmaFrameCnt);
- while(count) {
- if (net_debug > 5)
- printk("%s: receiving %d DMA frames\n", dev->name, count);
- if (net_debug > 2 && count >1)
- printk("%s: receiving %d DMA frames\n", dev->name, count);
- dma_rx(dev);
- if (--count == 0)
- count = readreg(dev, PP_DmaFrameCnt);
- if (net_debug > 2 && count > 0)
- printk("%s: continuing with %d DMA frames\n", dev->name, count);
- }
- }
-#endif
- break;
- case ISQ_RX_MISS_EVENT:
- dev->stats.rx_missed_errors += (status >> 6);
- break;
- case ISQ_TX_COL_EVENT:
- dev->stats.collisions += (status >> 6);
- break;
- }
- }
- return IRQ_RETVAL(handled);
-}
-
-static void
-count_rx_errors(int status, struct net_device *dev)
-{
- dev->stats.rx_errors++;
- if (status & RX_RUNT)
- dev->stats.rx_length_errors++;
- if (status & RX_EXTRA_DATA)
- dev->stats.rx_length_errors++;
- if ((status & RX_CRC_ERROR) && !(status & (RX_EXTRA_DATA|RX_RUNT)))
- /* per str 172 */
- dev->stats.rx_crc_errors++;
- if (status & RX_DRIBBLE)
- dev->stats.rx_frame_errors++;
-}
-
-/* We have a good packet(s), get it/them out of the buffers. */
-static void
-net_rx(struct net_device *dev)
-{
- struct sk_buff *skb;
- int status, length;
-
- int ioaddr = dev->base_addr;
- status = readword(ioaddr, RX_FRAME_PORT);
- length = readword(ioaddr, RX_FRAME_PORT);
-
- if ((status & RX_OK) == 0) {
- count_rx_errors(status, dev);
- return;
- }
-
- /* Malloc up new buffer. */
- skb = dev_alloc_skb(length + 2);
- if (skb == NULL) {
-#if 0 /* Again, this seems a cruel thing to do */
- printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name);
-#endif
- dev->stats.rx_dropped++;
- return;
- }
- skb_reserve(skb, 2); /* longword align L3 header */
-
- readwords(ioaddr, RX_FRAME_PORT, skb_put(skb, length), length >> 1);
- if (length & 1)
- skb->data[length-1] = readword(ioaddr, RX_FRAME_PORT);
-
- if (net_debug > 3) {
- printk( "%s: received %d byte packet of type %x\n",
- dev->name, length,
- (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
- }
-
- skb->protocol=eth_type_trans(skb,dev);
- netif_rx(skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += length;
-}
-
-#if ALLOW_DMA
-static void release_dma_buff(struct net_local *lp)
-{
- if (lp->dma_buff) {
- free_pages((unsigned long)(lp->dma_buff), get_order(lp->dmasize * 1024));
- lp->dma_buff = NULL;
- }
-}
-#endif
-
-/* The inverse routine to net_open(). */
-static int
-net_close(struct net_device *dev)
-{
-#if ALLOW_DMA
- struct net_local *lp = netdev_priv(dev);
-#endif
-
- netif_stop_queue(dev);
-
- writereg(dev, PP_RxCFG, 0);
- writereg(dev, PP_TxCFG, 0);
- writereg(dev, PP_BufCFG, 0);
- writereg(dev, PP_BusCTL, 0);
-
- free_irq(dev->irq, dev);
-
-#if ALLOW_DMA
- if (lp->use_dma && lp->dma) {
- free_dma(dev->dma);
- release_dma_buff(lp);
- }
-#endif
-
- /* Update the statistics here. */
- return 0;
-}
-
-/* Get the current statistics. This may be called with the card open or
- closed. */
-static struct net_device_stats *
-net_get_stats(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned long flags;
-
- spin_lock_irqsave(&lp->lock, flags);
- /* Update the statistics from the device registers. */
- dev->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6);
- dev->stats.collisions += (readreg(dev, PP_TxCol) >> 6);
- spin_unlock_irqrestore(&lp->lock, flags);
-
- return &dev->stats;
-}
-
-static void set_multicast_list(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- unsigned long flags;
-
- spin_lock_irqsave(&lp->lock, flags);
- if(dev->flags&IFF_PROMISC)
- {
- lp->rx_mode = RX_ALL_ACCEPT;
- }
- else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev))
- {
- /* The multicast-accept list is initialized to accept-all, and we
- rely on higher-level filtering for now. */
- lp->rx_mode = RX_MULTCAST_ACCEPT;
- }
- else
- lp->rx_mode = 0;
-
- writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode);
-
- /* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */
- writereg(dev, PP_RxCFG, lp->curr_rx_cfg |
- (lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0));
- spin_unlock_irqrestore(&lp->lock, flags);
-}
-
-
-static int set_mac_address(struct net_device *dev, void *p)
-{
- int i;
- struct sockaddr *addr = p;
-
- if (netif_running(dev))
- return -EBUSY;
-
- memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-
- if (net_debug)
- printk("%s: Setting MAC address to %pM.\n",
- dev->name, dev->dev_addr);
-
- /* set the Ethernet address */
- for (i=0; i < ETH_ALEN/2; i++)
- writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
-
- return 0;
-}
-
-#ifdef MODULE
-
-static struct net_device *dev_cs89x0;
-
-/*
- * Support the 'debug' module parm even if we're compiled for non-debug to
- * avoid breaking someone's startup scripts
- */
-
-static int io;
-static int irq;
-static int debug;
-static char media[8];
-static int duplex=-1;
-
-static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */
-static int dma;
-static int dmasize=16; /* or 64 */
-
-module_param(io, int, 0);
-module_param(irq, int, 0);
-module_param(debug, int, 0);
-module_param_string(media, media, sizeof(media), 0);
-module_param(duplex, int, 0);
-module_param(dma , int, 0);
-module_param(dmasize , int, 0);
-module_param(use_dma , int, 0);
-MODULE_PARM_DESC(io, "cs89x0 I/O base address");
-MODULE_PARM_DESC(irq, "cs89x0 IRQ number");
-#if DEBUGGING
-MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)");
-#else
-MODULE_PARM_DESC(debug, "(ignored)");
-#endif
-MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)");
-/* No other value than -1 for duplex seems to be currently interpreted */
-MODULE_PARM_DESC(duplex, "(ignored)");
-#if ALLOW_DMA
-MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0");
-MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0");
-MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)");
-#else
-MODULE_PARM_DESC(dma , "(ignored)");
-MODULE_PARM_DESC(dmasize , "(ignored)");
-MODULE_PARM_DESC(use_dma , "(ignored)");
-#endif
-
-MODULE_AUTHOR("Mike Cruse, Russwll Nelson <nelson@crynwr.com>, Andrew Morton");
-MODULE_LICENSE("GPL");
-
-
-/*
-* media=t - specify media type
- or media=2
- or media=aui
- or medai=auto
-* duplex=0 - specify forced half/full/autonegotiate duplex
-* debug=# - debug level
-
-
-* Default Chip Configuration:
- * DMA Burst = enabled
- * IOCHRDY Enabled = enabled
- * UseSA = enabled
- * CS8900 defaults to half-duplex if not specified on command-line
- * CS8920 defaults to autoneg if not specified on command-line
- * Use reset defaults for other config parameters
-
-* Assumptions:
- * media type specified is supported (circuitry is present)
- * if memory address is > 1MB, then required mem decode hw is present
- * if 10B-2, then agent other than driver will enable DC/DC converter
- (hw or software util)
-
-
-*/
-
-int __init init_module(void)
-{
- struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
- struct net_local *lp;
- int ret = 0;
-
-#if DEBUGGING
- net_debug = debug;
-#else
- debug = 0;
-#endif
- if (!dev)
- return -ENOMEM;
-
- dev->irq = irq;
- dev->base_addr = io;
- lp = netdev_priv(dev);
-
-#if ALLOW_DMA
- if (use_dma) {
- lp->use_dma = use_dma;
- lp->dma = dma;
- lp->dmasize = dmasize;
- }
-#endif
-
- spin_lock_init(&lp->lock);
-
- /* boy, they'd better get these right */
- if (!strcmp(media, "rj45"))
- lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
- else if (!strcmp(media, "aui"))
- lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI;
- else if (!strcmp(media, "bnc"))
- lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2;
- else
- lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
-
- if (duplex==-1)
- lp->auto_neg_cnf = AUTO_NEG_ENABLE;
-
- if (io == 0) {
- printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n");
- printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n");
- ret = -EPERM;
- goto out;
- } else if (io <= 0x1ff) {
- ret = -ENXIO;
- goto out;
- }
-
-#if ALLOW_DMA
- if (use_dma && dmasize != 16 && dmasize != 64) {
- printk(KERN_ERR "cs89x0.c: dma size must be either 16K or 64K, not %dK\n", dmasize);
- ret = -EPERM;
- goto out;
- }
-#endif
- ret = cs89x0_probe1(dev, io, 1);
- if (ret)
- goto out;
-
- dev_cs89x0 = dev;
- return 0;
-out:
- free_netdev(dev);
- return ret;
-}
-
-void __exit
-cleanup_module(void)
-{
- unregister_netdev(dev_cs89x0);
- writeword(dev_cs89x0->base_addr, ADD_PORT, PP_ChipID);
- release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT);
- free_netdev(dev_cs89x0);
-}
-#endif /* MODULE */
-
-/*
- * Local variables:
- * version-control: t
- * kept-new-versions: 5
- * c-indent-level: 8
- * tab-width: 8
- * End:
- *
- */
+++ /dev/null
-/* Copyright, 1988-1992, Russell Nelson, Crynwr Software
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, version 1.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-#define PP_ChipID 0x0000 /* offset 0h -> Corp -ID */
- /* offset 2h -> Model/Product Number */
- /* offset 3h -> Chip Revision Number */
-
-#define PP_ISAIOB 0x0020 /* IO base address */
-#define PP_CS8900_ISAINT 0x0022 /* ISA interrupt select */
-#define PP_CS8920_ISAINT 0x0370 /* ISA interrupt select */
-#define PP_CS8900_ISADMA 0x0024 /* ISA Rec DMA channel */
-#define PP_CS8920_ISADMA 0x0374 /* ISA Rec DMA channel */
-#define PP_ISASOF 0x0026 /* ISA DMA offset */
-#define PP_DmaFrameCnt 0x0028 /* ISA DMA Frame count */
-#define PP_DmaByteCnt 0x002A /* ISA DMA Byte count */
-#define PP_CS8900_ISAMemB 0x002C /* Memory base */
-#define PP_CS8920_ISAMemB 0x0348 /* */
-
-#define PP_ISABootBase 0x0030 /* Boot Prom base */
-#define PP_ISABootMask 0x0034 /* Boot Prom Mask */
-
-/* EEPROM data and command registers */
-#define PP_EECMD 0x0040 /* NVR Interface Command register */
-#define PP_EEData 0x0042 /* NVR Interface Data Register */
-#define PP_DebugReg 0x0044 /* Debug Register */
-
-#define PP_RxCFG 0x0102 /* Rx Bus config */
-#define PP_RxCTL 0x0104 /* Receive Control Register */
-#define PP_TxCFG 0x0106 /* Transmit Config Register */
-#define PP_TxCMD 0x0108 /* Transmit Command Register */
-#define PP_BufCFG 0x010A /* Bus configuration Register */
-#define PP_LineCTL 0x0112 /* Line Config Register */
-#define PP_SelfCTL 0x0114 /* Self Command Register */
-#define PP_BusCTL 0x0116 /* ISA bus control Register */
-#define PP_TestCTL 0x0118 /* Test Register */
-#define PP_AutoNegCTL 0x011C /* Auto Negotiation Ctrl */
-
-#define PP_ISQ 0x0120 /* Interrupt Status */
-#define PP_RxEvent 0x0124 /* Rx Event Register */
-#define PP_TxEvent 0x0128 /* Tx Event Register */
-#define PP_BufEvent 0x012C /* Bus Event Register */
-#define PP_RxMiss 0x0130 /* Receive Miss Count */
-#define PP_TxCol 0x0132 /* Transmit Collision Count */
-#define PP_LineST 0x0134 /* Line State Register */
-#define PP_SelfST 0x0136 /* Self State register */
-#define PP_BusST 0x0138 /* Bus Status */
-#define PP_TDR 0x013C /* Time Domain Reflectometry */
-#define PP_AutoNegST 0x013E /* Auto Neg Status */
-#define PP_TxCommand 0x0144 /* Tx Command */
-#define PP_TxLength 0x0146 /* Tx Length */
-#define PP_LAF 0x0150 /* Hash Table */
-#define PP_IA 0x0158 /* Physical Address Register */
-
-#define PP_RxStatus 0x0400 /* Receive start of frame */
-#define PP_RxLength 0x0402 /* Receive Length of frame */
-#define PP_RxFrame 0x0404 /* Receive frame pointer */
-#define PP_TxFrame 0x0A00 /* Transmit frame pointer */
-
-/* Primary I/O Base Address. If no I/O base is supplied by the user, then this */
-/* can be used as the default I/O base to access the PacketPage Area. */
-#define DEFAULTIOBASE 0x0300
-#define FIRST_IO 0x020C /* First I/O port to check */
-#define LAST_IO 0x037C /* Last I/O port to check (+10h) */
-#define ADD_MASK 0x3000 /* Mask it use of the ADD_PORT register */
-#define ADD_SIG 0x3000 /* Expected ID signature */
-
-/* On Macs, we only need use the ISA I/O stuff until we do MEMORY_ON */
-#ifdef CONFIG_MAC
-#define LCSLOTBASE 0xfee00000
-#define MMIOBASE 0x40000
-#endif
-
-#define CHIP_EISA_ID_SIG 0x630E /* Product ID Code for Crystal Chip (CS8900 spec 4.3) */
-#define CHIP_EISA_ID_SIG_STR "0x630E"
-
-#ifdef IBMEIPKT
-#define EISA_ID_SIG 0x4D24 /* IBM */
-#define PART_NO_SIG 0x1010 /* IBM */
-#define MONGOOSE_BIT 0x0000 /* IBM */
-#else
-#define EISA_ID_SIG 0x630E /* PnP Vendor ID (same as chip id for Crystal board) */
-#define PART_NO_SIG 0x4000 /* ID code CS8920 board (PnP Vendor Product code) */
-#define MONGOOSE_BIT 0x2000 /* PART_NO_SIG + MONGOOSE_BUT => ID of mongoose */
-#endif
-
-#define PRODUCT_ID_ADD 0x0002 /* Address of product ID */
-
-/* Mask to find out the types of registers */
-#define REG_TYPE_MASK 0x001F
-
-/* Eeprom Commands */
-#define ERSE_WR_ENBL 0x00F0
-#define ERSE_WR_DISABLE 0x0000
-
-/* Defines Control/Config register quintuplet numbers */
-#define RX_BUF_CFG 0x0003
-#define RX_CONTROL 0x0005
-#define TX_CFG 0x0007
-#define TX_COMMAND 0x0009
-#define BUF_CFG 0x000B
-#define LINE_CONTROL 0x0013
-#define SELF_CONTROL 0x0015
-#define BUS_CONTROL 0x0017
-#define TEST_CONTROL 0x0019
-
-/* Defines Status/Count registers quintuplet numbers */
-#define RX_EVENT 0x0004
-#define TX_EVENT 0x0008
-#define BUF_EVENT 0x000C
-#define RX_MISS_COUNT 0x0010
-#define TX_COL_COUNT 0x0012
-#define LINE_STATUS 0x0014
-#define SELF_STATUS 0x0016
-#define BUS_STATUS 0x0018
-#define TDR 0x001C
-
-/* PP_RxCFG - Receive Configuration and Interrupt Mask bit definition - Read/write */
-#define SKIP_1 0x0040
-#define RX_STREAM_ENBL 0x0080
-#define RX_OK_ENBL 0x0100
-#define RX_DMA_ONLY 0x0200
-#define AUTO_RX_DMA 0x0400
-#define BUFFER_CRC 0x0800
-#define RX_CRC_ERROR_ENBL 0x1000
-#define RX_RUNT_ENBL 0x2000
-#define RX_EXTRA_DATA_ENBL 0x4000
-
-/* PP_RxCTL - Receive Control bit definition - Read/write */
-#define RX_IA_HASH_ACCEPT 0x0040
-#define RX_PROM_ACCEPT 0x0080
-#define RX_OK_ACCEPT 0x0100
-#define RX_MULTCAST_ACCEPT 0x0200
-#define RX_IA_ACCEPT 0x0400
-#define RX_BROADCAST_ACCEPT 0x0800
-#define RX_BAD_CRC_ACCEPT 0x1000
-#define RX_RUNT_ACCEPT 0x2000
-#define RX_EXTRA_DATA_ACCEPT 0x4000
-#define RX_ALL_ACCEPT (RX_PROM_ACCEPT|RX_BAD_CRC_ACCEPT|RX_RUNT_ACCEPT|RX_EXTRA_DATA_ACCEPT)
-/* Default receive mode - individually addressed, broadcast, and error free */
-#define DEF_RX_ACCEPT (RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | RX_OK_ACCEPT)
-
-/* PP_TxCFG - Transmit Configuration Interrupt Mask bit definition - Read/write */
-#define TX_LOST_CRS_ENBL 0x0040
-#define TX_SQE_ERROR_ENBL 0x0080
-#define TX_OK_ENBL 0x0100
-#define TX_LATE_COL_ENBL 0x0200
-#define TX_JBR_ENBL 0x0400
-#define TX_ANY_COL_ENBL 0x0800
-#define TX_16_COL_ENBL 0x8000
-
-/* PP_TxCMD - Transmit Command bit definition - Read-only */
-#define TX_START_4_BYTES 0x0000
-#define TX_START_64_BYTES 0x0040
-#define TX_START_128_BYTES 0x0080
-#define TX_START_ALL_BYTES 0x00C0
-#define TX_FORCE 0x0100
-#define TX_ONE_COL 0x0200
-#define TX_TWO_PART_DEFF_DISABLE 0x0400
-#define TX_NO_CRC 0x1000
-#define TX_RUNT 0x2000
-
-/* PP_BufCFG - Buffer Configuration Interrupt Mask bit definition - Read/write */
-#define GENERATE_SW_INTERRUPT 0x0040
-#define RX_DMA_ENBL 0x0080
-#define READY_FOR_TX_ENBL 0x0100
-#define TX_UNDERRUN_ENBL 0x0200
-#define RX_MISS_ENBL 0x0400
-#define RX_128_BYTE_ENBL 0x0800
-#define TX_COL_COUNT_OVRFLOW_ENBL 0x1000
-#define RX_MISS_COUNT_OVRFLOW_ENBL 0x2000
-#define RX_DEST_MATCH_ENBL 0x8000
-
-/* PP_LineCTL - Line Control bit definition - Read/write */
-#define SERIAL_RX_ON 0x0040
-#define SERIAL_TX_ON 0x0080
-#define AUI_ONLY 0x0100
-#define AUTO_AUI_10BASET 0x0200
-#define MODIFIED_BACKOFF 0x0800
-#define NO_AUTO_POLARITY 0x1000
-#define TWO_PART_DEFDIS 0x2000
-#define LOW_RX_SQUELCH 0x4000
-
-/* PP_SelfCTL - Software Self Control bit definition - Read/write */
-#define POWER_ON_RESET 0x0040
-#define SW_STOP 0x0100
-#define SLEEP_ON 0x0200
-#define AUTO_WAKEUP 0x0400
-#define HCB0_ENBL 0x1000
-#define HCB1_ENBL 0x2000
-#define HCB0 0x4000
-#define HCB1 0x8000
-
-/* PP_BusCTL - ISA Bus Control bit definition - Read/write */
-#define RESET_RX_DMA 0x0040
-#define MEMORY_ON 0x0400
-#define DMA_BURST_MODE 0x0800
-#define IO_CHANNEL_READY_ON 0x1000
-#define RX_DMA_SIZE_64K 0x2000
-#define ENABLE_IRQ 0x8000
-
-/* PP_TestCTL - Test Control bit definition - Read/write */
-#define LINK_OFF 0x0080
-#define ENDEC_LOOPBACK 0x0200
-#define AUI_LOOPBACK 0x0400
-#define BACKOFF_OFF 0x0800
-#define FDX_8900 0x4000
-#define FAST_TEST 0x8000
-
-/* PP_RxEvent - Receive Event Bit definition - Read-only */
-#define RX_IA_HASHED 0x0040
-#define RX_DRIBBLE 0x0080
-#define RX_OK 0x0100
-#define RX_HASHED 0x0200
-#define RX_IA 0x0400
-#define RX_BROADCAST 0x0800
-#define RX_CRC_ERROR 0x1000
-#define RX_RUNT 0x2000
-#define RX_EXTRA_DATA 0x4000
-
-#define HASH_INDEX_MASK 0x0FC00
-
-/* PP_TxEvent - Transmit Event Bit definition - Read-only */
-#define TX_LOST_CRS 0x0040
-#define TX_SQE_ERROR 0x0080
-#define TX_OK 0x0100
-#define TX_LATE_COL 0x0200
-#define TX_JBR 0x0400
-#define TX_16_COL 0x8000
-#define TX_SEND_OK_BITS (TX_OK|TX_LOST_CRS)
-#define TX_COL_COUNT_MASK 0x7800
-
-/* PP_BufEvent - Buffer Event Bit definition - Read-only */
-#define SW_INTERRUPT 0x0040
-#define RX_DMA 0x0080
-#define READY_FOR_TX 0x0100
-#define TX_UNDERRUN 0x0200
-#define RX_MISS 0x0400
-#define RX_128_BYTE 0x0800
-#define TX_COL_OVRFLW 0x1000
-#define RX_MISS_OVRFLW 0x2000
-#define RX_DEST_MATCH 0x8000
-
-/* PP_LineST - Ethernet Line Status bit definition - Read-only */
-#define LINK_OK 0x0080
-#define AUI_ON 0x0100
-#define TENBASET_ON 0x0200
-#define POLARITY_OK 0x1000
-#define CRS_OK 0x4000
-
-/* PP_SelfST - Chip Software Status bit definition */
-#define ACTIVE_33V 0x0040
-#define INIT_DONE 0x0080
-#define SI_BUSY 0x0100
-#define EEPROM_PRESENT 0x0200
-#define EEPROM_OK 0x0400
-#define EL_PRESENT 0x0800
-#define EE_SIZE_64 0x1000
-
-/* PP_BusST - ISA Bus Status bit definition */
-#define TX_BID_ERROR 0x0080
-#define READY_FOR_TX_NOW 0x0100
-
-/* PP_AutoNegCTL - Auto Negotiation Control bit definition */
-#define RE_NEG_NOW 0x0040
-#define ALLOW_FDX 0x0080
-#define AUTO_NEG_ENABLE 0x0100
-#define NLP_ENABLE 0x0200
-#define FORCE_FDX 0x8000
-#define AUTO_NEG_BITS (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE)
-#define AUTO_NEG_MASK (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE|ALLOW_FDX|RE_NEG_NOW)
-
-/* PP_AutoNegST - Auto Negotiation Status bit definition */
-#define AUTO_NEG_BUSY 0x0080
-#define FLP_LINK 0x0100
-#define FLP_LINK_GOOD 0x0800
-#define LINK_FAULT 0x1000
-#define HDX_ACTIVE 0x4000
-#define FDX_ACTIVE 0x8000
-
-/* The following block defines the ISQ event types */
-#define ISQ_RECEIVER_EVENT 0x04
-#define ISQ_TRANSMITTER_EVENT 0x08
-#define ISQ_BUFFER_EVENT 0x0c
-#define ISQ_RX_MISS_EVENT 0x10
-#define ISQ_TX_COL_EVENT 0x12
-
-#define ISQ_EVENT_MASK 0x003F /* ISQ mask to find out type of event */
-#define ISQ_HIST 16 /* small history buffer */
-#define AUTOINCREMENT 0x8000 /* Bit mask to set bit-15 for autoincrement */
-
-#define TXRXBUFSIZE 0x0600
-#define RXDMABUFSIZE 0x8000
-#define RXDMASIZE 0x4000
-#define TXRX_LENGTH_MASK 0x07FF
-
-/* rx options bits */
-#define RCV_WITH_RXON 1 /* Set SerRx ON */
-#define RCV_COUNTS 2 /* Use Framecnt1 */
-#define RCV_PONG 4 /* Pong respondent */
-#define RCV_DONG 8 /* Dong operation */
-#define RCV_POLLING 0x10 /* Poll RxEvent */
-#define RCV_ISQ 0x20 /* Use ISQ, int */
-#define RCV_AUTO_DMA 0x100 /* Set AutoRxDMAE */
-#define RCV_DMA 0x200 /* Set RxDMA only */
-#define RCV_DMA_ALL 0x400 /* Copy all DMA'ed */
-#define RCV_FIXED_DATA 0x800 /* Every frame same */
-#define RCV_IO 0x1000 /* Use ISA IO only */
-#define RCV_MEMORY 0x2000 /* Use ISA Memory */
-
-#define RAM_SIZE 0x1000 /* The card has 4k bytes or RAM */
-#define PKT_START PP_TxFrame /* Start of packet RAM */
-
-#define RX_FRAME_PORT 0x0000
-#define TX_FRAME_PORT RX_FRAME_PORT
-#define TX_CMD_PORT 0x0004
-#define TX_NOW 0x0000 /* Tx packet after 5 bytes copied */
-#define TX_AFTER_381 0x0040 /* Tx packet after 381 bytes copied */
-#define TX_AFTER_ALL 0x00c0 /* Tx packet after all bytes copied */
-#define TX_LEN_PORT 0x0006
-#define ISQ_PORT 0x0008
-#define ADD_PORT 0x000A
-#define DATA_PORT 0x000C
-
-#define EEPROM_WRITE_EN 0x00F0
-#define EEPROM_WRITE_DIS 0x0000
-#define EEPROM_WRITE_CMD 0x0100
-#define EEPROM_READ_CMD 0x0200
-
-/* Receive Header */
-/* Description of header of each packet in receive area of memory */
-#define RBUF_EVENT_LOW 0 /* Low byte of RxEvent - status of received frame */
-#define RBUF_EVENT_HIGH 1 /* High byte of RxEvent - status of received frame */
-#define RBUF_LEN_LOW 2 /* Length of received data - low byte */
-#define RBUF_LEN_HI 3 /* Length of received data - high byte */
-#define RBUF_HEAD_LEN 4 /* Length of this header */
-
-#define CHIP_READ 0x1 /* Used to mark state of the repins code (chip or dma) */
-#define DMA_READ 0x2 /* Used to mark state of the repins code (chip or dma) */
-
-/* for bios scan */
-/* */
-#ifdef CSDEBUG
-/* use these values for debugging bios scan */
-#define BIOS_START_SEG 0x00000
-#define BIOS_OFFSET_INC 0x0010
-#else
-#define BIOS_START_SEG 0x0c000
-#define BIOS_OFFSET_INC 0x0200
-#endif
-
-#define BIOS_LAST_OFFSET 0x0fc00
-
-/* Byte offsets into the EEPROM configuration buffer */
-#define ISA_CNF_OFFSET 0x6
-#define TX_CTL_OFFSET (ISA_CNF_OFFSET + 8) /* 8900 eeprom */
-#define AUTO_NEG_CNF_OFFSET (ISA_CNF_OFFSET + 8) /* 8920 eeprom */
-
- /* the assumption here is that the bits in the eeprom are generally */
- /* in the same position as those in the autonegctl register. */
- /* Of course the IMM bit is not in that register so it must be */
- /* masked out */
-#define EE_FORCE_FDX 0x8000
-#define EE_NLP_ENABLE 0x0200
-#define EE_AUTO_NEG_ENABLE 0x0100
-#define EE_ALLOW_FDX 0x0080
-#define EE_AUTO_NEG_CNF_MASK (EE_FORCE_FDX|EE_NLP_ENABLE|EE_AUTO_NEG_ENABLE|EE_ALLOW_FDX)
-
-#define IMM_BIT 0x0040 /* ignore missing media */
-
-#define ADAPTER_CNF_OFFSET (AUTO_NEG_CNF_OFFSET + 2)
-#define A_CNF_10B_T 0x0001
-#define A_CNF_AUI 0x0002
-#define A_CNF_10B_2 0x0004
-#define A_CNF_MEDIA_TYPE 0x0070
-#define A_CNF_MEDIA_AUTO 0x0070
-#define A_CNF_MEDIA_10B_T 0x0020
-#define A_CNF_MEDIA_AUI 0x0040
-#define A_CNF_MEDIA_10B_2 0x0010
-#define A_CNF_DC_DC_POLARITY 0x0080
-#define A_CNF_NO_AUTO_POLARITY 0x2000
-#define A_CNF_LOW_RX_SQUELCH 0x4000
-#define A_CNF_EXTND_10B_2 0x8000
-
-#define PACKET_PAGE_OFFSET 0x8
-
-/* Bit definitions for the ISA configuration word from the EEPROM */
-#define INT_NO_MASK 0x000F
-#define DMA_NO_MASK 0x0070
-#define ISA_DMA_SIZE 0x0200
-#define ISA_AUTO_RxDMA 0x0400
-#define ISA_RxDMA 0x0800
-#define DMA_BURST 0x1000
-#define STREAM_TRANSFER 0x2000
-#define ANY_ISA_DMA (ISA_AUTO_RxDMA | ISA_RxDMA)
-
-/* DMA controller registers */
-#define DMA_BASE 0x00 /* DMA controller base */
-#define DMA_BASE_2 0x0C0 /* DMA controller base */
-
-#define DMA_STAT 0x0D0 /* DMA controller status register */
-#define DMA_MASK 0x0D4 /* DMA controller mask register */
-#define DMA_MODE 0x0D6 /* DMA controller mode register */
-#define DMA_RESETFF 0x0D8 /* DMA controller first/last flip flop */
-
-/* DMA data */
-#define DMA_DISABLE 0x04 /* Disable channel n */
-#define DMA_ENABLE 0x00 /* Enable channel n */
-/* Demand transfers, incr. address, auto init, writes, ch. n */
-#define DMA_RX_MODE 0x14
-/* Demand transfers, incr. address, auto init, reads, ch. n */
-#define DMA_TX_MODE 0x18
-
-#define DMA_SIZE (16*1024) /* Size of dma buffer - 16k */
-
-#define CS8900 0x0000
-#define CS8920 0x4000
-#define CS8920M 0x6000
-#define REVISON_BITS 0x1F00
-#define EEVER_NUMBER 0x12
-#define CHKSUM_LEN 0x14
-#define CHKSUM_VAL 0x0000
-#define START_EEPROM_DATA 0x001c /* Offset into eeprom for start of data */
-#define IRQ_MAP_EEPROM_DATA 0x0046 /* Offset into eeprom for the IRQ map */
-#define IRQ_MAP_LEN 0x0004 /* No of bytes to read for the IRQ map */
-#define PNP_IRQ_FRMT 0x0022 /* PNP small item IRQ format */
-#define CS8900_IRQ_MAP 0x1c20 /* This IRQ map is fixed */
-
-#define CS8920_NO_INTS 0x0F /* Max CS8920 interrupt select # */
-
-#define PNP_ADD_PORT 0x0279
-#define PNP_WRITE_PORT 0x0A79
-
-#define GET_PNP_ISA_STRUCT 0x40
-#define PNP_ISA_STRUCT_LEN 0x06
-#define PNP_CSN_CNT_OFF 0x01
-#define PNP_RD_PORT_OFF 0x02
-#define PNP_FUNCTION_OK 0x00
-#define PNP_WAKE 0x03
-#define PNP_RSRC_DATA 0x04
-#define PNP_RSRC_READY 0x01
-#define PNP_STATUS 0x05
-#define PNP_ACTIVATE 0x30
-#define PNP_CNF_IO_H 0x60
-#define PNP_CNF_IO_L 0x61
-#define PNP_CNF_INT 0x70
-#define PNP_CNF_DMA 0x74
-#define PNP_CNF_MEM 0x48
-
-#define BIT0 1
-#define BIT15 0x8000
-
config NET_VENDOR_CIRRUS
bool "Cirrus devices"
default y
- depends on ARM && ARCH_EP93XX
+ depends on ISA || EISA || MACH_IXDP2351 || ARCH_IXDP2X01 \
+ || MACH_MX31ADS || MACH_QQ2440 || (ARM && ARCH_EP93XX)
---help---
If you have a network (Ethernet) card belonging to this class, say Y
and read the Ethernet-HOWTO, available from
if NET_VENDOR_CIRRUS
+config CS89x0
+ tristate "CS89x0 support"
+ depends on (ISA || EISA || MACH_IXDP2351 \
+ || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440)
+ ---help---
+ Support for CS89x0 chipset based Ethernet cards. If you have a
+ network (Ethernet) card of this type, say Y and read the
+ Ethernet-HOWTO, available from
+ <http://www.tldp.org/docs.html#howto> as well as
+ <file:Documentation/networking/cs89x0.txt>.
+
+ To compile this driver as a module, choose M here. The module
+ will be called cs89x0.
+
+config CS89x0_NONISA_IRQ
+ def_bool y
+ depends on CS89x0 != n
+ depends on MACH_IXDP2351 || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440
+
config EP93XX_ETH
tristate "EP93xx Ethernet support"
depends on ARM && ARCH_EP93XX
# Makefile for the Cirrus network device drivers.
#
+obj-$(CONFIG_CS89x0) += cs89x0.o
obj-$(CONFIG_EP93XX_ETH) += ep93xx_eth.o
--- /dev/null
+/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0
+ * driver for linux.
+ */
+
+/*
+ Written 1996 by Russell Nelson, with reference to skeleton.c
+ written 1993-1994 by Donald Becker.
+
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ The author may be reached at nelson@crynwr.com, Crynwr
+ Software, 521 Pleasant Valley Rd., Potsdam, NY 13676
+
+ Changelog:
+
+ Mike Cruse : mcruse@cti-ltd.com
+ : Changes for Linux 2.0 compatibility.
+ : Added dev_id parameter in net_interrupt(),
+ : request_irq() and free_irq(). Just NULL for now.
+
+ Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros
+ : in net_open() and net_close() so kerneld would know
+ : that the module is in use and wouldn't eject the
+ : driver prematurely.
+
+ Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c
+ : as an example. Disabled autoprobing in init_module(),
+ : not a good thing to do to other devices while Linux
+ : is running from all accounts.
+
+ Russ Nelson : Jul 13 1998. Added RxOnly DMA support.
+
+ Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility.
+ : email: ethernet@crystal.cirrus.com
+
+ Alan Cox : Removed 1.2 support, added 2.1 extra counters.
+
+ Andrew Morton : Kernel 2.3.48
+ : Handle kmalloc() failures
+ : Other resource allocation fixes
+ : Add SMP locks
+ : Integrate Russ Nelson's ALLOW_DMA functionality back in.
+ : If ALLOW_DMA is true, make DMA runtime selectable
+ : Folded in changes from Cirrus (Melody Lee
+ : <klee@crystal.cirrus.com>)
+ : Don't call netif_wake_queue() in net_send_packet()
+ : Fixed an out-of-mem bug in dma_rx()
+ : Updated Documentation/networking/cs89x0.txt
+
+ Andrew Morton : Kernel 2.3.99-pre1
+ : Use skb_reserve to longword align IP header (two places)
+ : Remove a delay loop from dma_rx()
+ : Replace '100' with HZ
+ : Clean up a couple of skb API abuses
+ : Added 'cs89x0_dma=N' kernel boot option
+ : Correctly initialise lp->lock in non-module compile
+
+ Andrew Morton : Kernel 2.3.99-pre4-1
+ : MOD_INC/DEC race fix (see
+ : http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html)
+
+ Andrew Morton : Kernel 2.4.0-test7-pre2
+ : Enhanced EEPROM support to cover more devices,
+ : abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch
+ : (Jason Gunthorpe <jgg@ualberta.ca>)
+
+ Andrew Morton : Kernel 2.4.0-test11-pre4
+ : Use dev->name in request_*() (Andrey Panin)
+ : Fix an error-path memleak in init_module()
+ : Preserve return value from request_irq()
+ : Fix type of `media' module parm (Keith Owens)
+ : Use SET_MODULE_OWNER()
+ : Tidied up strange request_irq() abuse in net_open().
+
+ Andrew Morton : Kernel 2.4.3-pre1
+ : Request correct number of pages for DMA (Hugh Dickens)
+ : Select PP_ChipID _after_ unregister_netdev in cleanup_module()
+ : because unregister_netdev() calls get_stats.
+ : Make `version[]' __initdata
+ : Uninlined the read/write reg/word functions.
+
+ Oskar Schirmer : oskar@scara.com
+ : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=)
+
+ Deepak Saxena : dsaxena@plexity.net
+ : Intel IXDP2x01 (XScale ixp2x00 NPU) platform support
+
+ Dmitry Pervushin : dpervushin@ru.mvista.com
+ : PNX010X platform support
+
+ Deepak Saxena : dsaxena@plexity.net
+ : Intel IXDP2351 platform support
+
+ Dmitry Pervushin : dpervushin@ru.mvista.com
+ : PNX010X platform support
+
+ Domenico Andreoli : cavokz@gmail.com
+ : QQ2440 platform support
+
+*/
+
+/* Always include 'config.h' first in case the user wants to turn on
+ or override something. */
+#include <linux/module.h>
+
+/*
+ * Set this to zero to disable DMA code
+ *
+ * Note that even if DMA is turned off we still support the 'dma' and 'use_dma'
+ * module options so we don't break any startup scripts.
+ */
+#ifndef CONFIG_ISA_DMA_API
+#define ALLOW_DMA 0
+#else
+#define ALLOW_DMA 1
+#endif
+
+/*
+ * Set this to zero to remove all the debug statements via
+ * dead code elimination
+ */
+#define DEBUGGING 1
+
+/*
+ Sources:
+
+ Crynwr packet driver epktisa.
+
+ Crystal Semiconductor data sheets.
+
+*/
+
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/in.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/gfp.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#if ALLOW_DMA
+#include <asm/dma.h>
+#endif
+
+#include "cs89x0.h"
+
+static char version[] __initdata =
+"cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton\n";
+
+#define DRV_NAME "cs89x0"
+
+/* First, a few definitions that the brave might change.
+ A zero-terminated list of I/O addresses to be probed. Some special flags..
+ Addr & 1 = Read back the address port, look for signature and reset
+ the page window before probing
+ Addr & 3 = Reset the page window and probe
+ The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space,
+ but it is possible that a Cirrus board could be plugged into the ISA
+ slots. */
+/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
+ them to system IRQ numbers. This mapping is card specific and is set to
+ the configuration of the Cirrus Eval board for this chip. */
+#if defined(CONFIG_MACH_IXDP2351)
+static unsigned int netcard_portlist[] __used __initdata = {IXDP2351_VIRT_CS8900_BASE, 0};
+static unsigned int cs8900_irq_map[] = {IRQ_IXDP2351_CS8900, 0, 0, 0};
+#elif defined(CONFIG_ARCH_IXDP2X01)
+static unsigned int netcard_portlist[] __used __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0};
+static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0};
+#elif defined(CONFIG_MACH_QQ2440)
+#include <mach/qq2440.h>
+static unsigned int netcard_portlist[] __used __initdata = { QQ2440_CS8900_VIRT_BASE + 0x300, 0 };
+static unsigned int cs8900_irq_map[] = { QQ2440_CS8900_IRQ, 0, 0, 0 };
+#elif defined(CONFIG_MACH_MX31ADS)
+#include <mach/board-mx31ads.h>
+static unsigned int netcard_portlist[] __used __initdata = {
+ PBC_BASE_ADDRESS + PBC_CS8900A_IOBASE + 0x300, 0
+};
+static unsigned cs8900_irq_map[] = {EXPIO_INT_ENET_INT, 0, 0, 0};
+#else
+static unsigned int netcard_portlist[] __used __initdata =
+ { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
+static unsigned int cs8900_irq_map[] = {10,11,12,5};
+#endif
+
+#if DEBUGGING
+static unsigned int net_debug = DEBUGGING;
+#else
+#define net_debug 0 /* gcc will remove all the debug code for us */
+#endif
+
+/* The number of low I/O ports used by the ethercard. */
+#define NETCARD_IO_EXTENT 16
+
+/* we allow the user to override various values normally set in the EEPROM */
+#define FORCE_RJ45 0x0001 /* pick one of these three */
+#define FORCE_AUI 0x0002
+#define FORCE_BNC 0x0004
+
+#define FORCE_AUTO 0x0010 /* pick one of these three */
+#define FORCE_HALF 0x0020
+#define FORCE_FULL 0x0030
+
+/* Information that need to be kept for each board. */
+struct net_local {
+ int chip_type; /* one of: CS8900, CS8920, CS8920M */
+ char chip_revision; /* revision letter of the chip ('A'...) */
+ int send_cmd; /* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */
+ int auto_neg_cnf; /* auto-negotiation word from EEPROM */
+ int adapter_cnf; /* adapter configuration from EEPROM */
+ int isa_config; /* ISA configuration from EEPROM */
+ int irq_map; /* IRQ map from EEPROM */
+ int rx_mode; /* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */
+ int curr_rx_cfg; /* a copy of PP_RxCFG */
+ int linectl; /* either 0 or LOW_RX_SQUELCH, depending on configuration. */
+ int send_underrun; /* keep track of how many underruns in a row we get */
+ int force; /* force various values; see FORCE* above. */
+ spinlock_t lock;
+#if ALLOW_DMA
+ int use_dma; /* Flag: we're using dma */
+ int dma; /* DMA channel */
+ int dmasize; /* 16 or 64 */
+ unsigned char *dma_buff; /* points to the beginning of the buffer */
+ unsigned char *end_dma_buff; /* points to the end of the buffer */
+ unsigned char *rx_dma_ptr; /* points to the next packet */
+#endif
+};
+
+/* Index to functions, as function prototypes. */
+
+static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular);
+static int net_open(struct net_device *dev);
+static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev);
+static irqreturn_t net_interrupt(int irq, void *dev_id);
+static void set_multicast_list(struct net_device *dev);
+static void net_timeout(struct net_device *dev);
+static void net_rx(struct net_device *dev);
+static int net_close(struct net_device *dev);
+static struct net_device_stats *net_get_stats(struct net_device *dev);
+static void reset_chip(struct net_device *dev);
+static int get_eeprom_data(struct net_device *dev, int off, int len, int *buffer);
+static int get_eeprom_cksum(int off, int len, int *buffer);
+static int set_mac_address(struct net_device *dev, void *addr);
+static void count_rx_errors(int status, struct net_device *dev);
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void net_poll_controller(struct net_device *dev);
+#endif
+#if ALLOW_DMA
+static void get_dma_channel(struct net_device *dev);
+static void release_dma_buff(struct net_local *lp);
+#endif
+
+/* Example routines you must write ;->. */
+#define tx_done(dev) 1
+
+/*
+ * Permit 'cs89x0_dma=N' in the kernel boot environment
+ */
+#if !defined(MODULE) && (ALLOW_DMA != 0)
+static int g_cs89x0_dma;
+
+static int __init dma_fn(char *str)
+{
+ g_cs89x0_dma = simple_strtol(str,NULL,0);
+ return 1;
+}
+
+__setup("cs89x0_dma=", dma_fn);
+#endif /* !defined(MODULE) && (ALLOW_DMA != 0) */
+
+#ifndef MODULE
+static int g_cs89x0_media__force;
+
+static int __init media_fn(char *str)
+{
+ if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45;
+ else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI;
+ else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC;
+ return 1;
+}
+
+__setup("cs89x0_media=", media_fn);
+
+
+/* Check for a network adaptor of this type, and return '0' iff one exists.
+ If dev->base_addr == 0, probe all likely locations.
+ If dev->base_addr == 1, always return failure.
+ If dev->base_addr == 2, allocate space for the device and return success
+ (detachable devices only).
+ Return 0 on success.
+ */
+
+struct net_device * __init cs89x0_probe(int unit)
+{
+ struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
+ unsigned *port;
+ int err = 0;
+ int irq;
+ int io;
+
+ if (!dev)
+ return ERR_PTR(-ENODEV);
+
+ sprintf(dev->name, "eth%d", unit);
+ netdev_boot_setup_check(dev);
+ io = dev->base_addr;
+ irq = dev->irq;
+
+ if (net_debug)
+ printk("cs89x0:cs89x0_probe(0x%x)\n", io);
+
+ if (io > 0x1ff) { /* Check a single specified location. */
+ err = cs89x0_probe1(dev, io, 0);
+ } else if (io != 0) { /* Don't probe at all. */
+ err = -ENXIO;
+ } else {
+ for (port = netcard_portlist; *port; port++) {
+ if (cs89x0_probe1(dev, *port, 0) == 0)
+ break;
+ dev->irq = irq;
+ }
+ if (!*port)
+ err = -ENODEV;
+ }
+ if (err)
+ goto out;
+ return dev;
+out:
+ free_netdev(dev);
+ printk(KERN_WARNING "cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n");
+ return ERR_PTR(err);
+}
+#endif
+
+#if defined(CONFIG_MACH_IXDP2351)
+static u16
+readword(unsigned long base_addr, int portno)
+{
+ return __raw_readw(base_addr + (portno << 1));
+}
+
+static void
+writeword(unsigned long base_addr, int portno, u16 value)
+{
+ __raw_writew(value, base_addr + (portno << 1));
+}
+#elif defined(CONFIG_ARCH_IXDP2X01)
+static u16
+readword(unsigned long base_addr, int portno)
+{
+ return __raw_readl(base_addr + (portno << 1));
+}
+
+static void
+writeword(unsigned long base_addr, int portno, u16 value)
+{
+ __raw_writel(value, base_addr + (portno << 1));
+}
+#else
+static u16
+readword(unsigned long base_addr, int portno)
+{
+ return inw(base_addr + portno);
+}
+
+static void
+writeword(unsigned long base_addr, int portno, u16 value)
+{
+ outw(value, base_addr + portno);
+}
+#endif
+
+static void
+readwords(unsigned long base_addr, int portno, void *buf, int length)
+{
+ u8 *buf8 = (u8 *)buf;
+
+ do {
+ u16 tmp16;
+
+ tmp16 = readword(base_addr, portno);
+ *buf8++ = (u8)tmp16;
+ *buf8++ = (u8)(tmp16 >> 8);
+ } while (--length);
+}
+
+static void
+writewords(unsigned long base_addr, int portno, void *buf, int length)
+{
+ u8 *buf8 = (u8 *)buf;
+
+ do {
+ u16 tmp16;
+
+ tmp16 = *buf8++;
+ tmp16 |= (*buf8++) << 8;
+ writeword(base_addr, portno, tmp16);
+ } while (--length);
+}
+
+static u16
+readreg(struct net_device *dev, u16 regno)
+{
+ writeword(dev->base_addr, ADD_PORT, regno);
+ return readword(dev->base_addr, DATA_PORT);
+}
+
+static void
+writereg(struct net_device *dev, u16 regno, u16 value)
+{
+ writeword(dev->base_addr, ADD_PORT, regno);
+ writeword(dev->base_addr, DATA_PORT, value);
+}
+
+static int __init
+wait_eeprom_ready(struct net_device *dev)
+{
+ int timeout = jiffies;
+ /* check to see if the EEPROM is ready, a timeout is used -
+ just in case EEPROM is ready when SI_BUSY in the
+ PP_SelfST is clear */
+ while(readreg(dev, PP_SelfST) & SI_BUSY)
+ if (jiffies - timeout >= 40)
+ return -1;
+ return 0;
+}
+
+static int __init
+get_eeprom_data(struct net_device *dev, int off, int len, int *buffer)
+{
+ int i;
+
+ if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len);
+ for (i = 0; i < len; i++) {
+ if (wait_eeprom_ready(dev) < 0) return -1;
+ /* Now send the EEPROM read command and EEPROM location to read */
+ writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD);
+ if (wait_eeprom_ready(dev) < 0) return -1;
+ buffer[i] = readreg(dev, PP_EEData);
+ if (net_debug > 3) printk("%04x ", buffer[i]);
+ }
+ if (net_debug > 3) printk("\n");
+ return 0;
+}
+
+static int __init
+get_eeprom_cksum(int off, int len, int *buffer)
+{
+ int i, cksum;
+
+ cksum = 0;
+ for (i = 0; i < len; i++)
+ cksum += buffer[i];
+ cksum &= 0xffff;
+ if (cksum == 0)
+ return 0;
+ return -1;
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void net_poll_controller(struct net_device *dev)
+{
+ disable_irq(dev->irq);
+ net_interrupt(dev->irq, dev);
+ enable_irq(dev->irq);
+}
+#endif
+
+static const struct net_device_ops net_ops = {
+ .ndo_open = net_open,
+ .ndo_stop = net_close,
+ .ndo_tx_timeout = net_timeout,
+ .ndo_start_xmit = net_send_packet,
+ .ndo_get_stats = net_get_stats,
+ .ndo_set_rx_mode = set_multicast_list,
+ .ndo_set_mac_address = set_mac_address,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = net_poll_controller,
+#endif
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+/* This is the real probe routine. Linux has a history of friendly device
+ probes on the ISA bus. A good device probes avoids doing writes, and
+ verifies that the correct device exists and functions.
+ Return 0 on success.
+ */
+
+static int __init
+cs89x0_probe1(struct net_device *dev, int ioaddr, int modular)
+{
+ struct net_local *lp = netdev_priv(dev);
+ static unsigned version_printed;
+ int i;
+ int tmp;
+ unsigned rev_type = 0;
+ int eeprom_buff[CHKSUM_LEN];
+ int retval;
+
+ /* Initialize the device structure. */
+ if (!modular) {
+ memset(lp, 0, sizeof(*lp));
+ spin_lock_init(&lp->lock);
+#ifndef MODULE
+#if ALLOW_DMA
+ if (g_cs89x0_dma) {
+ lp->use_dma = 1;
+ lp->dma = g_cs89x0_dma;
+ lp->dmasize = 16; /* Could make this an option... */
+ }
+#endif
+ lp->force = g_cs89x0_media__force;
+#endif
+
+#if defined(CONFIG_MACH_QQ2440)
+ lp->force |= FORCE_RJ45 | FORCE_FULL;
+#endif
+ }
+
+ /* Grab the region so we can find another board if autoIRQ fails. */
+ /* WTF is going on here? */
+ if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) {
+ printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n",
+ DRV_NAME, ioaddr, NETCARD_IO_EXTENT);
+ retval = -EBUSY;
+ goto out1;
+ }
+
+ /* if they give us an odd I/O address, then do ONE write to
+ the address port, to get it back to address zero, where we
+ expect to find the EISA signature word. An IO with a base of 0x3
+ will skip the test for the ADD_PORT. */
+ if (ioaddr & 1) {
+ if (net_debug > 1)
+ printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr);
+ if ((ioaddr & 2) != 2)
+ if ((readword(ioaddr & ~3, ADD_PORT) & ADD_MASK) != ADD_SIG) {
+ printk(KERN_ERR "%s: bad signature 0x%x\n",
+ dev->name, readword(ioaddr & ~3, ADD_PORT));
+ retval = -ENODEV;
+ goto out2;
+ }
+ }
+
+ ioaddr &= ~3;
+ printk(KERN_DEBUG "PP_addr at %x[%x]: 0x%x\n",
+ ioaddr, ADD_PORT, readword(ioaddr, ADD_PORT));
+ writeword(ioaddr, ADD_PORT, PP_ChipID);
+
+ tmp = readword(ioaddr, DATA_PORT);
+ if (tmp != CHIP_EISA_ID_SIG) {
+ printk(KERN_DEBUG "%s: incorrect signature at %x[%x]: 0x%x!="
+ CHIP_EISA_ID_SIG_STR "\n",
+ dev->name, ioaddr, DATA_PORT, tmp);
+ retval = -ENODEV;
+ goto out2;
+ }
+
+ /* Fill in the 'dev' fields. */
+ dev->base_addr = ioaddr;
+
+ /* get the chip type */
+ rev_type = readreg(dev, PRODUCT_ID_ADD);
+ lp->chip_type = rev_type &~ REVISON_BITS;
+ lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
+
+ /* Check the chip type and revision in order to set the correct send command
+ CS8920 revision C and CS8900 revision F can use the faster send. */
+ lp->send_cmd = TX_AFTER_381;
+ if (lp->chip_type == CS8900 && lp->chip_revision >= 'F')
+ lp->send_cmd = TX_NOW;
+ if (lp->chip_type != CS8900 && lp->chip_revision >= 'C')
+ lp->send_cmd = TX_NOW;
+
+ if (net_debug && version_printed++ == 0)
+ printk(version);
+
+ printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ",
+ dev->name,
+ lp->chip_type==CS8900?'0':'2',
+ lp->chip_type==CS8920M?"M":"",
+ lp->chip_revision,
+ dev->base_addr);
+
+ reset_chip(dev);
+
+ /* Here we read the current configuration of the chip. If there
+ is no Extended EEPROM then the idea is to not disturb the chip
+ configuration, it should have been correctly setup by automatic
+ EEPROM read on reset. So, if the chip says it read the EEPROM
+ the driver will always do *something* instead of complain that
+ adapter_cnf is 0. */
+
+
+ if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) ==
+ (EEPROM_OK|EEPROM_PRESENT)) {
+ /* Load the MAC. */
+ for (i=0; i < ETH_ALEN/2; i++) {
+ unsigned int Addr;
+ Addr = readreg(dev, PP_IA+i*2);
+ dev->dev_addr[i*2] = Addr & 0xFF;
+ dev->dev_addr[i*2+1] = Addr >> 8;
+ }
+
+ /* Load the Adapter Configuration.
+ Note: Barring any more specific information from some
+ other source (ie EEPROM+Schematics), we would not know
+ how to operate a 10Base2 interface on the AUI port.
+ However, since we do read the status of HCB1 and use
+ settings that always result in calls to control_dc_dc(dev,0)
+ a BNC interface should work if the enable pin
+ (dc/dc converter) is on HCB1. It will be called AUI
+ however. */
+
+ lp->adapter_cnf = 0;
+ i = readreg(dev, PP_LineCTL);
+ /* Preserve the setting of the HCB1 pin. */
+ if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL))
+ lp->adapter_cnf |= A_CNF_DC_DC_POLARITY;
+ /* Save the sqelch bit */
+ if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH)
+ lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH;
+ /* Check if the card is in 10Base-t only mode */
+ if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0)
+ lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T;
+ /* Check if the card is in AUI only mode */
+ if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY)
+ lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI;
+ /* Check if the card is in Auto mode. */
+ if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET)
+ lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T |
+ A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO;
+
+ if (net_debug > 1)
+ printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n",
+ dev->name, i, lp->adapter_cnf);
+
+ /* IRQ. Other chips already probe, see below. */
+ if (lp->chip_type == CS8900)
+ lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK;
+
+ printk( "[Cirrus EEPROM] ");
+ }
+
+ printk("\n");
+
+ /* First check to see if an EEPROM is attached. */
+
+ if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0)
+ printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n");
+ else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
+ printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n");
+ } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) {
+ /* Check if the chip was able to read its own configuration starting
+ at 0 in the EEPROM*/
+ if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) !=
+ (EEPROM_OK|EEPROM_PRESENT))
+ printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n");
+
+ } else {
+ /* This reads an extended EEPROM that is not documented
+ in the CS8900 datasheet. */
+
+ /* get transmission control word but keep the autonegotiation bits */
+ if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2];
+ /* Store adapter configuration */
+ if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2];
+ /* Store ISA configuration */
+ lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2];
+ dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8;
+
+ /* eeprom_buff has 32-bit ints, so we can't just memcpy it */
+ /* store the initial memory base address */
+ for (i = 0; i < ETH_ALEN/2; i++) {
+ dev->dev_addr[i*2] = eeprom_buff[i];
+ dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8;
+ }
+ if (net_debug > 1)
+ printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n",
+ dev->name, lp->adapter_cnf);
+ }
+
+ /* allow them to force multiple transceivers. If they force multiple, autosense */
+ {
+ int count = 0;
+ if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; }
+ if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; }
+ if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; }
+ if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; }
+ else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; }
+ else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; }
+ else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; }
+ }
+
+ if (net_debug > 1)
+ printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n",
+ dev->name, lp->force, lp->adapter_cnf);
+
+ /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */
+
+ /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */
+
+ /* FIXME: we don't set the Ethernet address on the command line. Use
+ ifconfig IFACE hw ether AABBCCDDEEFF */
+
+ printk(KERN_INFO "cs89x0 media %s%s%s",
+ (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"",
+ (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"",
+ (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":"");
+
+ lp->irq_map = 0xffff;
+
+ /* If this is a CS8900 then no pnp soft */
+ if (lp->chip_type != CS8900 &&
+ /* Check if the ISA IRQ has been set */
+ (i = readreg(dev, PP_CS8920_ISAINT) & 0xff,
+ (i != 0 && i < CS8920_NO_INTS))) {
+ if (!dev->irq)
+ dev->irq = i;
+ } else {
+ i = lp->isa_config & INT_NO_MASK;
+ if (lp->chip_type == CS8900) {
+#ifdef CONFIG_CS89x0_NONISA_IRQ
+ i = cs8900_irq_map[0];
+#else
+ /* Translate the IRQ using the IRQ mapping table. */
+ if (i >= ARRAY_SIZE(cs8900_irq_map))
+ printk("\ncs89x0: invalid ISA interrupt number %d\n", i);
+ else
+ i = cs8900_irq_map[i];
+
+ lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */
+ } else {
+ int irq_map_buff[IRQ_MAP_LEN/2];
+
+ if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA,
+ IRQ_MAP_LEN/2,
+ irq_map_buff) >= 0) {
+ if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT)
+ lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8);
+ }
+#endif
+ }
+ if (!dev->irq)
+ dev->irq = i;
+ }
+
+ printk(" IRQ %d", dev->irq);
+
+#if ALLOW_DMA
+ if (lp->use_dma) {
+ get_dma_channel(dev);
+ printk(", DMA %d", dev->dma);
+ }
+ else
+#endif
+ {
+ printk(", programmed I/O");
+ }
+
+ /* print the ethernet address. */
+ printk(", MAC %pM", dev->dev_addr);
+
+ dev->netdev_ops = &net_ops;
+ dev->watchdog_timeo = HZ;
+
+ printk("\n");
+ if (net_debug)
+ printk("cs89x0_probe1() successful\n");
+
+ retval = register_netdev(dev);
+ if (retval)
+ goto out3;
+ return 0;
+out3:
+ writeword(dev->base_addr, ADD_PORT, PP_ChipID);
+out2:
+ release_region(ioaddr & ~3, NETCARD_IO_EXTENT);
+out1:
+ return retval;
+}
+
+
+/*********************************
+ * This page contains DMA routines
+**********************************/
+
+#if ALLOW_DMA
+
+#define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17)
+
+static void
+get_dma_channel(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+
+ if (lp->dma) {
+ dev->dma = lp->dma;
+ lp->isa_config |= ISA_RxDMA;
+ } else {
+ if ((lp->isa_config & ANY_ISA_DMA) == 0)
+ return;
+ dev->dma = lp->isa_config & DMA_NO_MASK;
+ if (lp->chip_type == CS8900)
+ dev->dma += 5;
+ if (dev->dma < 5 || dev->dma > 7) {
+ lp->isa_config &= ~ANY_ISA_DMA;
+ return;
+ }
+ }
+}
+
+static void
+write_dma(struct net_device *dev, int chip_type, int dma)
+{
+ struct net_local *lp = netdev_priv(dev);
+ if ((lp->isa_config & ANY_ISA_DMA) == 0)
+ return;
+ if (chip_type == CS8900) {
+ writereg(dev, PP_CS8900_ISADMA, dma-5);
+ } else {
+ writereg(dev, PP_CS8920_ISADMA, dma);
+ }
+}
+
+static void
+set_dma_cfg(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+
+ if (lp->use_dma) {
+ if ((lp->isa_config & ANY_ISA_DMA) == 0) {
+ if (net_debug > 3)
+ printk("set_dma_cfg(): no DMA\n");
+ return;
+ }
+ if (lp->isa_config & ISA_RxDMA) {
+ lp->curr_rx_cfg |= RX_DMA_ONLY;
+ if (net_debug > 3)
+ printk("set_dma_cfg(): RX_DMA_ONLY\n");
+ } else {
+ lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */
+ if (net_debug > 3)
+ printk("set_dma_cfg(): AUTO_RX_DMA\n");
+ }
+ }
+}
+
+static int
+dma_bufcfg(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ if (lp->use_dma)
+ return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0;
+ else
+ return 0;
+}
+
+static int
+dma_busctl(struct net_device *dev)
+{
+ int retval = 0;
+ struct net_local *lp = netdev_priv(dev);
+ if (lp->use_dma) {
+ if (lp->isa_config & ANY_ISA_DMA)
+ retval |= RESET_RX_DMA; /* Reset the DMA pointer */
+ if (lp->isa_config & DMA_BURST)
+ retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */
+ if (lp->dmasize == 64)
+ retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */
+ retval |= MEMORY_ON; /* we need memory enabled to use DMA. */
+ }
+ return retval;
+}
+
+static void
+dma_rx(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ struct sk_buff *skb;
+ int status, length;
+ unsigned char *bp = lp->rx_dma_ptr;
+
+ status = bp[0] + (bp[1]<<8);
+ length = bp[2] + (bp[3]<<8);
+ bp += 4;
+ if (net_debug > 5) {
+ printk( "%s: receiving DMA packet at %lx, status %x, length %x\n",
+ dev->name, (unsigned long)bp, status, length);
+ }
+ if ((status & RX_OK) == 0) {
+ count_rx_errors(status, dev);
+ goto skip_this_frame;
+ }
+
+ /* Malloc up new buffer. */
+ skb = dev_alloc_skb(length + 2);
+ if (skb == NULL) {
+ if (net_debug) /* I don't think we want to do this to a stressed system */
+ printk("%s: Memory squeeze, dropping packet.\n", dev->name);
+ dev->stats.rx_dropped++;
+
+ /* AKPM: advance bp to the next frame */
+skip_this_frame:
+ bp += (length + 3) & ~3;
+ if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
+ lp->rx_dma_ptr = bp;
+ return;
+ }
+ skb_reserve(skb, 2); /* longword align L3 header */
+
+ if (bp + length > lp->end_dma_buff) {
+ int semi_cnt = lp->end_dma_buff - bp;
+ memcpy(skb_put(skb,semi_cnt), bp, semi_cnt);
+ memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff,
+ length - semi_cnt);
+ } else {
+ memcpy(skb_put(skb,length), bp, length);
+ }
+ bp += (length + 3) & ~3;
+ if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024;
+ lp->rx_dma_ptr = bp;
+
+ if (net_debug > 3) {
+ printk( "%s: received %d byte DMA packet of type %x\n",
+ dev->name, length,
+ (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
+ }
+ skb->protocol=eth_type_trans(skb,dev);
+ netif_rx(skb);
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += length;
+}
+
+#endif /* ALLOW_DMA */
+
+static void __init reset_chip(struct net_device *dev)
+{
+#if !defined(CONFIG_MACH_MX31ADS)
+#if !defined(CS89x0_NONISA_IRQ)
+ struct net_local *lp = netdev_priv(dev);
+ int ioaddr = dev->base_addr;
+#endif /* CS89x0_NONISA_IRQ */
+ int reset_start_time;
+
+ writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET);
+
+ /* wait 30 ms */
+ msleep(30);
+
+#if !defined(CS89x0_NONISA_IRQ)
+ if (lp->chip_type != CS8900) {
+ /* Hardware problem requires PNP registers to be reconfigured after a reset */
+ writeword(ioaddr, ADD_PORT, PP_CS8920_ISAINT);
+ outb(dev->irq, ioaddr + DATA_PORT);
+ outb(0, ioaddr + DATA_PORT + 1);
+
+ writeword(ioaddr, ADD_PORT, PP_CS8920_ISAMemB);
+ outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT);
+ outb((dev->mem_start >> 8) & 0xff, ioaddr + DATA_PORT + 1);
+ }
+#endif /* CS89x0_NONISA_IRQ */
+
+ /* Wait until the chip is reset */
+ reset_start_time = jiffies;
+ while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2)
+ ;
+#endif /* !CONFIG_MACH_MX31ADS */
+}
+
+
+static void
+control_dc_dc(struct net_device *dev, int on_not_off)
+{
+ struct net_local *lp = netdev_priv(dev);
+ unsigned int selfcontrol;
+ int timenow = jiffies;
+ /* control the DC to DC convertor in the SelfControl register.
+ Note: This is hooked up to a general purpose pin, might not
+ always be a DC to DC convertor. */
+
+ selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */
+ if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off)
+ selfcontrol |= HCB1;
+ else
+ selfcontrol &= ~HCB1;
+ writereg(dev, PP_SelfCTL, selfcontrol);
+
+ /* Wait for the DC/DC converter to power up - 500ms */
+ while (jiffies - timenow < HZ)
+ ;
+}
+
+#define DETECTED_NONE 0
+#define DETECTED_RJ45H 1
+#define DETECTED_RJ45F 2
+#define DETECTED_AUI 3
+#define DETECTED_BNC 4
+
+static int
+detect_tp(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ int timenow = jiffies;
+ int fdx;
+
+ if (net_debug > 1) printk("%s: Attempting TP\n", dev->name);
+
+ /* If connected to another full duplex capable 10-Base-T card the link pulses
+ seem to be lost when the auto detect bit in the LineCTL is set.
+ To overcome this the auto detect bit will be cleared whilst testing the
+ 10-Base-T interface. This would not be necessary for the sparrow chip but
+ is simpler to do it anyway. */
+ writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY);
+ control_dc_dc(dev, 0);
+
+ /* Delay for the hardware to work out if the TP cable is present - 150ms */
+ for (timenow = jiffies; jiffies - timenow < 15; )
+ ;
+ if ((readreg(dev, PP_LineST) & LINK_OK) == 0)
+ return DETECTED_NONE;
+
+ if (lp->chip_type == CS8900) {
+ switch (lp->force & 0xf0) {
+#if 0
+ case FORCE_AUTO:
+ printk("%s: cs8900 doesn't autonegotiate\n",dev->name);
+ return DETECTED_NONE;
+#endif
+ /* CS8900 doesn't support AUTO, change to HALF*/
+ case FORCE_AUTO:
+ lp->force &= ~FORCE_AUTO;
+ lp->force |= FORCE_HALF;
+ break;
+ case FORCE_HALF:
+ break;
+ case FORCE_FULL:
+ writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900);
+ break;
+ }
+ fdx = readreg(dev, PP_TestCTL) & FDX_8900;
+ } else {
+ switch (lp->force & 0xf0) {
+ case FORCE_AUTO:
+ lp->auto_neg_cnf = AUTO_NEG_ENABLE;
+ break;
+ case FORCE_HALF:
+ lp->auto_neg_cnf = 0;
+ break;
+ case FORCE_FULL:
+ lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX;
+ break;
+ }
+
+ writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK);
+
+ if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) {
+ printk(KERN_INFO "%s: negotiating duplex...\n",dev->name);
+ while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) {
+ if (jiffies - timenow > 4000) {
+ printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n");
+ break;
+ }
+ }
+ }
+ fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE;
+ }
+ if (fdx)
+ return DETECTED_RJ45F;
+ else
+ return DETECTED_RJ45H;
+}
+
+/* send a test packet - return true if carrier bits are ok */
+static int
+send_test_pkt(struct net_device *dev)
+{
+ char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0,
+ 0, 46, /* A 46 in network order */
+ 0, 0, /* DSAP=0 & SSAP=0 fields */
+ 0xf3, 0 /* Control (Test Req + P bit set) */ };
+ long timenow = jiffies;
+
+ writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON);
+
+ memcpy(test_packet, dev->dev_addr, ETH_ALEN);
+ memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN);
+
+ writeword(dev->base_addr, TX_CMD_PORT, TX_AFTER_ALL);
+ writeword(dev->base_addr, TX_LEN_PORT, ETH_ZLEN);
+
+ /* Test to see if the chip has allocated memory for the packet */
+ while (jiffies - timenow < 5)
+ if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW)
+ break;
+ if (jiffies - timenow >= 5)
+ return 0; /* this shouldn't happen */
+
+ /* Write the contents of the packet */
+ writewords(dev->base_addr, TX_FRAME_PORT,test_packet,(ETH_ZLEN+1) >>1);
+
+ if (net_debug > 1) printk("Sending test packet ");
+ /* wait a couple of jiffies for packet to be received */
+ for (timenow = jiffies; jiffies - timenow < 3; )
+ ;
+ if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) {
+ if (net_debug > 1) printk("succeeded\n");
+ return 1;
+ }
+ if (net_debug > 1) printk("failed\n");
+ return 0;
+}
+
+
+static int
+detect_aui(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+
+ if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name);
+ control_dc_dc(dev, 0);
+
+ writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
+
+ if (send_test_pkt(dev))
+ return DETECTED_AUI;
+ else
+ return DETECTED_NONE;
+}
+
+static int
+detect_bnc(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+
+ if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name);
+ control_dc_dc(dev, 1);
+
+ writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY);
+
+ if (send_test_pkt(dev))
+ return DETECTED_BNC;
+ else
+ return DETECTED_NONE;
+}
+
+
+static void
+write_irq(struct net_device *dev, int chip_type, int irq)
+{
+ int i;
+
+ if (chip_type == CS8900) {
+ /* Search the mapping table for the corresponding IRQ pin. */
+ for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++)
+ if (cs8900_irq_map[i] == irq)
+ break;
+ /* Not found */
+ if (i == ARRAY_SIZE(cs8900_irq_map))
+ i = 3;
+ writereg(dev, PP_CS8900_ISAINT, i);
+ } else {
+ writereg(dev, PP_CS8920_ISAINT, irq);
+ }
+}
+
+/* Open/initialize the board. This is called (in the current kernel)
+ sometime after booting when the 'ifconfig' program is run.
+
+ This routine should set everything up anew at each open, even
+ registers that "should" only need to be set once at boot, so that
+ there is non-reboot way to recover if something goes wrong.
+ */
+
+/* AKPM: do we need to do any locking here? */
+
+static int
+net_open(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ int result = 0;
+ int i;
+ int ret;
+
+ if (dev->irq < 2) {
+ /* Allow interrupts to be generated by the chip */
+/* Cirrus' release had this: */
+#if 0
+ writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
+#endif
+/* And 2.3.47 had this: */
+ writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
+
+ for (i = 2; i < CS8920_NO_INTS; i++) {
+ if ((1 << i) & lp->irq_map) {
+ if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) {
+ dev->irq = i;
+ write_irq(dev, lp->chip_type, i);
+ /* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */
+ break;
+ }
+ }
+ }
+
+ if (i >= CS8920_NO_INTS) {
+ writereg(dev, PP_BusCTL, 0); /* disable interrupts. */
+ printk(KERN_ERR "cs89x0: can't get an interrupt\n");
+ ret = -EAGAIN;
+ goto bad_out;
+ }
+ }
+ else
+ {
+#ifndef CONFIG_CS89x0_NONISA_IRQ
+ if (((1 << dev->irq) & lp->irq_map) == 0) {
+ printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n",
+ dev->name, dev->irq, lp->irq_map);
+ ret = -EAGAIN;
+ goto bad_out;
+ }
+#endif
+/* FIXME: Cirrus' release had this: */
+ writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ );
+/* And 2.3.47 had this: */
+#if 0
+ writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON);
+#endif
+ write_irq(dev, lp->chip_type, dev->irq);
+ ret = request_irq(dev->irq, net_interrupt, 0, dev->name, dev);
+ if (ret) {
+ printk(KERN_ERR "cs89x0: request_irq(%d) failed\n", dev->irq);
+ goto bad_out;
+ }
+ }
+
+#if ALLOW_DMA
+ if (lp->use_dma) {
+ if (lp->isa_config & ANY_ISA_DMA) {
+ unsigned long flags;
+ lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL,
+ get_order(lp->dmasize * 1024));
+
+ if (!lp->dma_buff) {
+ printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize);
+ goto release_irq;
+ }
+ if (net_debug > 1) {
+ printk( "%s: dma %lx %lx\n",
+ dev->name,
+ (unsigned long)lp->dma_buff,
+ (unsigned long)isa_virt_to_bus(lp->dma_buff));
+ }
+ if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS ||
+ !dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) {
+ printk(KERN_ERR "%s: not usable as DMA buffer\n", dev->name);
+ goto release_irq;
+ }
+ memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */
+ if (request_dma(dev->dma, dev->name)) {
+ printk(KERN_ERR "%s: cannot get dma channel %d\n", dev->name, dev->dma);
+ goto release_irq;
+ }
+ write_dma(dev, lp->chip_type, dev->dma);
+ lp->rx_dma_ptr = lp->dma_buff;
+ lp->end_dma_buff = lp->dma_buff + lp->dmasize*1024;
+ spin_lock_irqsave(&lp->lock, flags);
+ disable_dma(dev->dma);
+ clear_dma_ff(dev->dma);
+ set_dma_mode(dev->dma, DMA_RX_MODE); /* auto_init as well */
+ set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff));
+ set_dma_count(dev->dma, lp->dmasize*1024);
+ enable_dma(dev->dma);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ }
+ }
+#endif /* ALLOW_DMA */
+
+ /* set the Ethernet address */
+ for (i=0; i < ETH_ALEN/2; i++)
+ writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
+
+ /* while we're testing the interface, leave interrupts disabled */
+ writereg(dev, PP_BusCTL, MEMORY_ON);
+
+ /* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */
+ if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
+ lp->linectl = LOW_RX_SQUELCH;
+ else
+ lp->linectl = 0;
+
+ /* check to make sure that they have the "right" hardware available */
+ switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
+ case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break;
+ case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break;
+ case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break;
+ default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2);
+ }
+ if (!result) {
+ printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name);
+release_dma:
+#if ALLOW_DMA
+ free_dma(dev->dma);
+release_irq:
+ release_dma_buff(lp);
+#endif
+ writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
+ free_irq(dev->irq, dev);
+ ret = -EAGAIN;
+ goto bad_out;
+ }
+
+ /* set the hardware to the configured choice */
+ switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
+ case A_CNF_MEDIA_10B_T:
+ result = detect_tp(dev);
+ if (result==DETECTED_NONE) {
+ printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name);
+ if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
+ result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */
+ }
+ break;
+ case A_CNF_MEDIA_AUI:
+ result = detect_aui(dev);
+ if (result==DETECTED_NONE) {
+ printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name);
+ if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
+ result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */
+ }
+ break;
+ case A_CNF_MEDIA_10B_2:
+ result = detect_bnc(dev);
+ if (result==DETECTED_NONE) {
+ printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name);
+ if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
+ result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */
+ }
+ break;
+ case A_CNF_MEDIA_AUTO:
+ writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);
+ if (lp->adapter_cnf & A_CNF_10B_T)
+ if ((result = detect_tp(dev)) != DETECTED_NONE)
+ break;
+ if (lp->adapter_cnf & A_CNF_AUI)
+ if ((result = detect_aui(dev)) != DETECTED_NONE)
+ break;
+ if (lp->adapter_cnf & A_CNF_10B_2)
+ if ((result = detect_bnc(dev)) != DETECTED_NONE)
+ break;
+ printk(KERN_ERR "%s: no media detected\n", dev->name);
+ goto release_dma;
+ }
+ switch(result) {
+ case DETECTED_NONE:
+ printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name);
+ goto release_dma;
+ case DETECTED_RJ45H:
+ printk(KERN_INFO "%s: using half-duplex 10Base-T (RJ-45)\n", dev->name);
+ break;
+ case DETECTED_RJ45F:
+ printk(KERN_INFO "%s: using full-duplex 10Base-T (RJ-45)\n", dev->name);
+ break;
+ case DETECTED_AUI:
+ printk(KERN_INFO "%s: using 10Base-5 (AUI)\n", dev->name);
+ break;
+ case DETECTED_BNC:
+ printk(KERN_INFO "%s: using 10Base-2 (BNC)\n", dev->name);
+ break;
+ }
+
+ /* Turn on both receive and transmit operations */
+ writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
+
+ /* Receive only error free packets addressed to this card */
+ lp->rx_mode = 0;
+ writereg(dev, PP_RxCTL, DEF_RX_ACCEPT);
+
+ lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL;
+
+ if (lp->isa_config & STREAM_TRANSFER)
+ lp->curr_rx_cfg |= RX_STREAM_ENBL;
+#if ALLOW_DMA
+ set_dma_cfg(dev);
+#endif
+ writereg(dev, PP_RxCFG, lp->curr_rx_cfg);
+
+ writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL |
+ TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
+
+ writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL |
+#if ALLOW_DMA
+ dma_bufcfg(dev) |
+#endif
+ TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL);
+
+ /* now that we've got our act together, enable everything */
+ writereg(dev, PP_BusCTL, ENABLE_IRQ
+ | (dev->mem_start?MEMORY_ON : 0) /* turn memory on */
+#if ALLOW_DMA
+ | dma_busctl(dev)
+#endif
+ );
+ netif_start_queue(dev);
+ if (net_debug > 1)
+ printk("cs89x0: net_open() succeeded\n");
+ return 0;
+bad_out:
+ return ret;
+}
+
+static void net_timeout(struct net_device *dev)
+{
+ /* If we get here, some higher level has decided we are broken.
+ There should really be a "kick me" function call instead. */
+ if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name,
+ tx_done(dev) ? "IRQ conflict ?" : "network cable problem");
+ /* Try to restart the adaptor. */
+ netif_wake_queue(dev);
+}
+
+static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ unsigned long flags;
+
+ if (net_debug > 3) {
+ printk("%s: sent %d byte packet of type %x\n",
+ dev->name, skb->len,
+ (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
+ }
+
+ /* keep the upload from being interrupted, since we
+ ask the chip to start transmitting before the
+ whole packet has been completely uploaded. */
+
+ spin_lock_irqsave(&lp->lock, flags);
+ netif_stop_queue(dev);
+
+ /* initiate a transmit sequence */
+ writeword(dev->base_addr, TX_CMD_PORT, lp->send_cmd);
+ writeword(dev->base_addr, TX_LEN_PORT, skb->len);
+
+ /* Test to see if the chip has allocated memory for the packet */
+ if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) {
+ /*
+ * Gasp! It hasn't. But that shouldn't happen since
+ * we're waiting for TxOk, so return 1 and requeue this packet.
+ */
+
+ spin_unlock_irqrestore(&lp->lock, flags);
+ if (net_debug) printk("cs89x0: Tx buffer not free!\n");
+ return NETDEV_TX_BUSY;
+ }
+ /* Write the contents of the packet */
+ writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1);
+ spin_unlock_irqrestore(&lp->lock, flags);
+ dev->stats.tx_bytes += skb->len;
+ dev_kfree_skb (skb);
+
+ /*
+ * We DO NOT call netif_wake_queue() here.
+ * We also DO NOT call netif_start_queue().
+ *
+ * Either of these would cause another bottom half run through
+ * net_send_packet() before this packet has fully gone out. That causes
+ * us to hit the "Gasp!" above and the send is rescheduled. it runs like
+ * a dog. We just return and wait for the Tx completion interrupt handler
+ * to restart the netdevice layer
+ */
+
+ return NETDEV_TX_OK;
+}
+
+/* The typical workload of the driver:
+ Handle the network interface interrupts. */
+
+static irqreturn_t net_interrupt(int irq, void *dev_id)
+{
+ struct net_device *dev = dev_id;
+ struct net_local *lp;
+ int ioaddr, status;
+ int handled = 0;
+
+ ioaddr = dev->base_addr;
+ lp = netdev_priv(dev);
+
+ /* we MUST read all the events out of the ISQ, otherwise we'll never
+ get interrupted again. As a consequence, we can't have any limit
+ on the number of times we loop in the interrupt handler. The
+ hardware guarantees that eventually we'll run out of events. Of
+ course, if you're on a slow machine, and packets are arriving
+ faster than you can read them off, you're screwed. Hasta la
+ vista, baby! */
+ while ((status = readword(dev->base_addr, ISQ_PORT))) {
+ if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status);
+ handled = 1;
+ switch(status & ISQ_EVENT_MASK) {
+ case ISQ_RECEIVER_EVENT:
+ /* Got a packet(s). */
+ net_rx(dev);
+ break;
+ case ISQ_TRANSMITTER_EVENT:
+ dev->stats.tx_packets++;
+ netif_wake_queue(dev); /* Inform upper layers. */
+ if ((status & ( TX_OK |
+ TX_LOST_CRS |
+ TX_SQE_ERROR |
+ TX_LATE_COL |
+ TX_16_COL)) != TX_OK) {
+ if ((status & TX_OK) == 0)
+ dev->stats.tx_errors++;
+ if (status & TX_LOST_CRS)
+ dev->stats.tx_carrier_errors++;
+ if (status & TX_SQE_ERROR)
+ dev->stats.tx_heartbeat_errors++;
+ if (status & TX_LATE_COL)
+ dev->stats.tx_window_errors++;
+ if (status & TX_16_COL)
+ dev->stats.tx_aborted_errors++;
+ }
+ break;
+ case ISQ_BUFFER_EVENT:
+ if (status & READY_FOR_TX) {
+ /* we tried to transmit a packet earlier,
+ but inexplicably ran out of buffers.
+ That shouldn't happen since we only ever
+ load one packet. Shrug. Do the right
+ thing anyway. */
+ netif_wake_queue(dev); /* Inform upper layers. */
+ }
+ if (status & TX_UNDERRUN) {
+ if (net_debug > 0) printk("%s: transmit underrun\n", dev->name);
+ lp->send_underrun++;
+ if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381;
+ else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL;
+ /* transmit cycle is done, although
+ frame wasn't transmitted - this
+ avoids having to wait for the upper
+ layers to timeout on us, in the
+ event of a tx underrun */
+ netif_wake_queue(dev); /* Inform upper layers. */
+ }
+#if ALLOW_DMA
+ if (lp->use_dma && (status & RX_DMA)) {
+ int count = readreg(dev, PP_DmaFrameCnt);
+ while(count) {
+ if (net_debug > 5)
+ printk("%s: receiving %d DMA frames\n", dev->name, count);
+ if (net_debug > 2 && count >1)
+ printk("%s: receiving %d DMA frames\n", dev->name, count);
+ dma_rx(dev);
+ if (--count == 0)
+ count = readreg(dev, PP_DmaFrameCnt);
+ if (net_debug > 2 && count > 0)
+ printk("%s: continuing with %d DMA frames\n", dev->name, count);
+ }
+ }
+#endif
+ break;
+ case ISQ_RX_MISS_EVENT:
+ dev->stats.rx_missed_errors += (status >> 6);
+ break;
+ case ISQ_TX_COL_EVENT:
+ dev->stats.collisions += (status >> 6);
+ break;
+ }
+ }
+ return IRQ_RETVAL(handled);
+}
+
+static void
+count_rx_errors(int status, struct net_device *dev)
+{
+ dev->stats.rx_errors++;
+ if (status & RX_RUNT)
+ dev->stats.rx_length_errors++;
+ if (status & RX_EXTRA_DATA)
+ dev->stats.rx_length_errors++;
+ if ((status & RX_CRC_ERROR) && !(status & (RX_EXTRA_DATA|RX_RUNT)))
+ /* per str 172 */
+ dev->stats.rx_crc_errors++;
+ if (status & RX_DRIBBLE)
+ dev->stats.rx_frame_errors++;
+}
+
+/* We have a good packet(s), get it/them out of the buffers. */
+static void
+net_rx(struct net_device *dev)
+{
+ struct sk_buff *skb;
+ int status, length;
+
+ int ioaddr = dev->base_addr;
+ status = readword(ioaddr, RX_FRAME_PORT);
+ length = readword(ioaddr, RX_FRAME_PORT);
+
+ if ((status & RX_OK) == 0) {
+ count_rx_errors(status, dev);
+ return;
+ }
+
+ /* Malloc up new buffer. */
+ skb = dev_alloc_skb(length + 2);
+ if (skb == NULL) {
+#if 0 /* Again, this seems a cruel thing to do */
+ printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name);
+#endif
+ dev->stats.rx_dropped++;
+ return;
+ }
+ skb_reserve(skb, 2); /* longword align L3 header */
+
+ readwords(ioaddr, RX_FRAME_PORT, skb_put(skb, length), length >> 1);
+ if (length & 1)
+ skb->data[length-1] = readword(ioaddr, RX_FRAME_PORT);
+
+ if (net_debug > 3) {
+ printk( "%s: received %d byte packet of type %x\n",
+ dev->name, length,
+ (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]);
+ }
+
+ skb->protocol=eth_type_trans(skb,dev);
+ netif_rx(skb);
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += length;
+}
+
+#if ALLOW_DMA
+static void release_dma_buff(struct net_local *lp)
+{
+ if (lp->dma_buff) {
+ free_pages((unsigned long)(lp->dma_buff), get_order(lp->dmasize * 1024));
+ lp->dma_buff = NULL;
+ }
+}
+#endif
+
+/* The inverse routine to net_open(). */
+static int
+net_close(struct net_device *dev)
+{
+#if ALLOW_DMA
+ struct net_local *lp = netdev_priv(dev);
+#endif
+
+ netif_stop_queue(dev);
+
+ writereg(dev, PP_RxCFG, 0);
+ writereg(dev, PP_TxCFG, 0);
+ writereg(dev, PP_BufCFG, 0);
+ writereg(dev, PP_BusCTL, 0);
+
+ free_irq(dev->irq, dev);
+
+#if ALLOW_DMA
+ if (lp->use_dma && lp->dma) {
+ free_dma(dev->dma);
+ release_dma_buff(lp);
+ }
+#endif
+
+ /* Update the statistics here. */
+ return 0;
+}
+
+/* Get the current statistics. This may be called with the card open or
+ closed. */
+static struct net_device_stats *
+net_get_stats(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&lp->lock, flags);
+ /* Update the statistics from the device registers. */
+ dev->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6);
+ dev->stats.collisions += (readreg(dev, PP_TxCol) >> 6);
+ spin_unlock_irqrestore(&lp->lock, flags);
+
+ return &dev->stats;
+}
+
+static void set_multicast_list(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+ unsigned long flags;
+
+ spin_lock_irqsave(&lp->lock, flags);
+ if(dev->flags&IFF_PROMISC)
+ {
+ lp->rx_mode = RX_ALL_ACCEPT;
+ }
+ else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev))
+ {
+ /* The multicast-accept list is initialized to accept-all, and we
+ rely on higher-level filtering for now. */
+ lp->rx_mode = RX_MULTCAST_ACCEPT;
+ }
+ else
+ lp->rx_mode = 0;
+
+ writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode);
+
+ /* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */
+ writereg(dev, PP_RxCFG, lp->curr_rx_cfg |
+ (lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0));
+ spin_unlock_irqrestore(&lp->lock, flags);
+}
+
+
+static int set_mac_address(struct net_device *dev, void *p)
+{
+ int i;
+ struct sockaddr *addr = p;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ if (net_debug)
+ printk("%s: Setting MAC address to %pM.\n",
+ dev->name, dev->dev_addr);
+
+ /* set the Ethernet address */
+ for (i=0; i < ETH_ALEN/2; i++)
+ writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8));
+
+ return 0;
+}
+
+#ifdef MODULE
+
+static struct net_device *dev_cs89x0;
+
+/*
+ * Support the 'debug' module parm even if we're compiled for non-debug to
+ * avoid breaking someone's startup scripts
+ */
+
+static int io;
+static int irq;
+static int debug;
+static char media[8];
+static int duplex=-1;
+
+static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */
+static int dma;
+static int dmasize=16; /* or 64 */
+
+module_param(io, int, 0);
+module_param(irq, int, 0);
+module_param(debug, int, 0);
+module_param_string(media, media, sizeof(media), 0);
+module_param(duplex, int, 0);
+module_param(dma , int, 0);
+module_param(dmasize , int, 0);
+module_param(use_dma , int, 0);
+MODULE_PARM_DESC(io, "cs89x0 I/O base address");
+MODULE_PARM_DESC(irq, "cs89x0 IRQ number");
+#if DEBUGGING
+MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)");
+#else
+MODULE_PARM_DESC(debug, "(ignored)");
+#endif
+MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)");
+/* No other value than -1 for duplex seems to be currently interpreted */
+MODULE_PARM_DESC(duplex, "(ignored)");
+#if ALLOW_DMA
+MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0");
+MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0");
+MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)");
+#else
+MODULE_PARM_DESC(dma , "(ignored)");
+MODULE_PARM_DESC(dmasize , "(ignored)");
+MODULE_PARM_DESC(use_dma , "(ignored)");
+#endif
+
+MODULE_AUTHOR("Mike Cruse, Russwll Nelson <nelson@crynwr.com>, Andrew Morton");
+MODULE_LICENSE("GPL");
+
+
+/*
+* media=t - specify media type
+ or media=2
+ or media=aui
+ or medai=auto
+* duplex=0 - specify forced half/full/autonegotiate duplex
+* debug=# - debug level
+
+
+* Default Chip Configuration:
+ * DMA Burst = enabled
+ * IOCHRDY Enabled = enabled
+ * UseSA = enabled
+ * CS8900 defaults to half-duplex if not specified on command-line
+ * CS8920 defaults to autoneg if not specified on command-line
+ * Use reset defaults for other config parameters
+
+* Assumptions:
+ * media type specified is supported (circuitry is present)
+ * if memory address is > 1MB, then required mem decode hw is present
+ * if 10B-2, then agent other than driver will enable DC/DC converter
+ (hw or software util)
+
+
+*/
+
+int __init init_module(void)
+{
+ struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
+ struct net_local *lp;
+ int ret = 0;
+
+#if DEBUGGING
+ net_debug = debug;
+#else
+ debug = 0;
+#endif
+ if (!dev)
+ return -ENOMEM;
+
+ dev->irq = irq;
+ dev->base_addr = io;
+ lp = netdev_priv(dev);
+
+#if ALLOW_DMA
+ if (use_dma) {
+ lp->use_dma = use_dma;
+ lp->dma = dma;
+ lp->dmasize = dmasize;
+ }
+#endif
+
+ spin_lock_init(&lp->lock);
+
+ /* boy, they'd better get these right */
+ if (!strcmp(media, "rj45"))
+ lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
+ else if (!strcmp(media, "aui"))
+ lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI;
+ else if (!strcmp(media, "bnc"))
+ lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2;
+ else
+ lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T;
+
+ if (duplex==-1)
+ lp->auto_neg_cnf = AUTO_NEG_ENABLE;
+
+ if (io == 0) {
+ printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n");
+ printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n");
+ ret = -EPERM;
+ goto out;
+ } else if (io <= 0x1ff) {
+ ret = -ENXIO;
+ goto out;
+ }
+
+#if ALLOW_DMA
+ if (use_dma && dmasize != 16 && dmasize != 64) {
+ printk(KERN_ERR "cs89x0.c: dma size must be either 16K or 64K, not %dK\n", dmasize);
+ ret = -EPERM;
+ goto out;
+ }
+#endif
+ ret = cs89x0_probe1(dev, io, 1);
+ if (ret)
+ goto out;
+
+ dev_cs89x0 = dev;
+ return 0;
+out:
+ free_netdev(dev);
+ return ret;
+}
+
+void __exit
+cleanup_module(void)
+{
+ unregister_netdev(dev_cs89x0);
+ writeword(dev_cs89x0->base_addr, ADD_PORT, PP_ChipID);
+ release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT);
+ free_netdev(dev_cs89x0);
+}
+#endif /* MODULE */
+
+/*
+ * Local variables:
+ * version-control: t
+ * kept-new-versions: 5
+ * c-indent-level: 8
+ * tab-width: 8
+ * End:
+ *
+ */
--- /dev/null
+/* Copyright, 1988-1992, Russell Nelson, Crynwr Software
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, version 1.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#define PP_ChipID 0x0000 /* offset 0h -> Corp -ID */
+ /* offset 2h -> Model/Product Number */
+ /* offset 3h -> Chip Revision Number */
+
+#define PP_ISAIOB 0x0020 /* IO base address */
+#define PP_CS8900_ISAINT 0x0022 /* ISA interrupt select */
+#define PP_CS8920_ISAINT 0x0370 /* ISA interrupt select */
+#define PP_CS8900_ISADMA 0x0024 /* ISA Rec DMA channel */
+#define PP_CS8920_ISADMA 0x0374 /* ISA Rec DMA channel */
+#define PP_ISASOF 0x0026 /* ISA DMA offset */
+#define PP_DmaFrameCnt 0x0028 /* ISA DMA Frame count */
+#define PP_DmaByteCnt 0x002A /* ISA DMA Byte count */
+#define PP_CS8900_ISAMemB 0x002C /* Memory base */
+#define PP_CS8920_ISAMemB 0x0348 /* */
+
+#define PP_ISABootBase 0x0030 /* Boot Prom base */
+#define PP_ISABootMask 0x0034 /* Boot Prom Mask */
+
+/* EEPROM data and command registers */
+#define PP_EECMD 0x0040 /* NVR Interface Command register */
+#define PP_EEData 0x0042 /* NVR Interface Data Register */
+#define PP_DebugReg 0x0044 /* Debug Register */
+
+#define PP_RxCFG 0x0102 /* Rx Bus config */
+#define PP_RxCTL 0x0104 /* Receive Control Register */
+#define PP_TxCFG 0x0106 /* Transmit Config Register */
+#define PP_TxCMD 0x0108 /* Transmit Command Register */
+#define PP_BufCFG 0x010A /* Bus configuration Register */
+#define PP_LineCTL 0x0112 /* Line Config Register */
+#define PP_SelfCTL 0x0114 /* Self Command Register */
+#define PP_BusCTL 0x0116 /* ISA bus control Register */
+#define PP_TestCTL 0x0118 /* Test Register */
+#define PP_AutoNegCTL 0x011C /* Auto Negotiation Ctrl */
+
+#define PP_ISQ 0x0120 /* Interrupt Status */
+#define PP_RxEvent 0x0124 /* Rx Event Register */
+#define PP_TxEvent 0x0128 /* Tx Event Register */
+#define PP_BufEvent 0x012C /* Bus Event Register */
+#define PP_RxMiss 0x0130 /* Receive Miss Count */
+#define PP_TxCol 0x0132 /* Transmit Collision Count */
+#define PP_LineST 0x0134 /* Line State Register */
+#define PP_SelfST 0x0136 /* Self State register */
+#define PP_BusST 0x0138 /* Bus Status */
+#define PP_TDR 0x013C /* Time Domain Reflectometry */
+#define PP_AutoNegST 0x013E /* Auto Neg Status */
+#define PP_TxCommand 0x0144 /* Tx Command */
+#define PP_TxLength 0x0146 /* Tx Length */
+#define PP_LAF 0x0150 /* Hash Table */
+#define PP_IA 0x0158 /* Physical Address Register */
+
+#define PP_RxStatus 0x0400 /* Receive start of frame */
+#define PP_RxLength 0x0402 /* Receive Length of frame */
+#define PP_RxFrame 0x0404 /* Receive frame pointer */
+#define PP_TxFrame 0x0A00 /* Transmit frame pointer */
+
+/* Primary I/O Base Address. If no I/O base is supplied by the user, then this */
+/* can be used as the default I/O base to access the PacketPage Area. */
+#define DEFAULTIOBASE 0x0300
+#define FIRST_IO 0x020C /* First I/O port to check */
+#define LAST_IO 0x037C /* Last I/O port to check (+10h) */
+#define ADD_MASK 0x3000 /* Mask it use of the ADD_PORT register */
+#define ADD_SIG 0x3000 /* Expected ID signature */
+
+/* On Macs, we only need use the ISA I/O stuff until we do MEMORY_ON */
+#ifdef CONFIG_MAC
+#define LCSLOTBASE 0xfee00000
+#define MMIOBASE 0x40000
+#endif
+
+#define CHIP_EISA_ID_SIG 0x630E /* Product ID Code for Crystal Chip (CS8900 spec 4.3) */
+#define CHIP_EISA_ID_SIG_STR "0x630E"
+
+#ifdef IBMEIPKT
+#define EISA_ID_SIG 0x4D24 /* IBM */
+#define PART_NO_SIG 0x1010 /* IBM */
+#define MONGOOSE_BIT 0x0000 /* IBM */
+#else
+#define EISA_ID_SIG 0x630E /* PnP Vendor ID (same as chip id for Crystal board) */
+#define PART_NO_SIG 0x4000 /* ID code CS8920 board (PnP Vendor Product code) */
+#define MONGOOSE_BIT 0x2000 /* PART_NO_SIG + MONGOOSE_BUT => ID of mongoose */
+#endif
+
+#define PRODUCT_ID_ADD 0x0002 /* Address of product ID */
+
+/* Mask to find out the types of registers */
+#define REG_TYPE_MASK 0x001F
+
+/* Eeprom Commands */
+#define ERSE_WR_ENBL 0x00F0
+#define ERSE_WR_DISABLE 0x0000
+
+/* Defines Control/Config register quintuplet numbers */
+#define RX_BUF_CFG 0x0003
+#define RX_CONTROL 0x0005
+#define TX_CFG 0x0007
+#define TX_COMMAND 0x0009
+#define BUF_CFG 0x000B
+#define LINE_CONTROL 0x0013
+#define SELF_CONTROL 0x0015
+#define BUS_CONTROL 0x0017
+#define TEST_CONTROL 0x0019
+
+/* Defines Status/Count registers quintuplet numbers */
+#define RX_EVENT 0x0004
+#define TX_EVENT 0x0008
+#define BUF_EVENT 0x000C
+#define RX_MISS_COUNT 0x0010
+#define TX_COL_COUNT 0x0012
+#define LINE_STATUS 0x0014
+#define SELF_STATUS 0x0016
+#define BUS_STATUS 0x0018
+#define TDR 0x001C
+
+/* PP_RxCFG - Receive Configuration and Interrupt Mask bit definition - Read/write */
+#define SKIP_1 0x0040
+#define RX_STREAM_ENBL 0x0080
+#define RX_OK_ENBL 0x0100
+#define RX_DMA_ONLY 0x0200
+#define AUTO_RX_DMA 0x0400
+#define BUFFER_CRC 0x0800
+#define RX_CRC_ERROR_ENBL 0x1000
+#define RX_RUNT_ENBL 0x2000
+#define RX_EXTRA_DATA_ENBL 0x4000
+
+/* PP_RxCTL - Receive Control bit definition - Read/write */
+#define RX_IA_HASH_ACCEPT 0x0040
+#define RX_PROM_ACCEPT 0x0080
+#define RX_OK_ACCEPT 0x0100
+#define RX_MULTCAST_ACCEPT 0x0200
+#define RX_IA_ACCEPT 0x0400
+#define RX_BROADCAST_ACCEPT 0x0800
+#define RX_BAD_CRC_ACCEPT 0x1000
+#define RX_RUNT_ACCEPT 0x2000
+#define RX_EXTRA_DATA_ACCEPT 0x4000
+#define RX_ALL_ACCEPT (RX_PROM_ACCEPT|RX_BAD_CRC_ACCEPT|RX_RUNT_ACCEPT|RX_EXTRA_DATA_ACCEPT)
+/* Default receive mode - individually addressed, broadcast, and error free */
+#define DEF_RX_ACCEPT (RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | RX_OK_ACCEPT)
+
+/* PP_TxCFG - Transmit Configuration Interrupt Mask bit definition - Read/write */
+#define TX_LOST_CRS_ENBL 0x0040
+#define TX_SQE_ERROR_ENBL 0x0080
+#define TX_OK_ENBL 0x0100
+#define TX_LATE_COL_ENBL 0x0200
+#define TX_JBR_ENBL 0x0400
+#define TX_ANY_COL_ENBL 0x0800
+#define TX_16_COL_ENBL 0x8000
+
+/* PP_TxCMD - Transmit Command bit definition - Read-only */
+#define TX_START_4_BYTES 0x0000
+#define TX_START_64_BYTES 0x0040
+#define TX_START_128_BYTES 0x0080
+#define TX_START_ALL_BYTES 0x00C0
+#define TX_FORCE 0x0100
+#define TX_ONE_COL 0x0200
+#define TX_TWO_PART_DEFF_DISABLE 0x0400
+#define TX_NO_CRC 0x1000
+#define TX_RUNT 0x2000
+
+/* PP_BufCFG - Buffer Configuration Interrupt Mask bit definition - Read/write */
+#define GENERATE_SW_INTERRUPT 0x0040
+#define RX_DMA_ENBL 0x0080
+#define READY_FOR_TX_ENBL 0x0100
+#define TX_UNDERRUN_ENBL 0x0200
+#define RX_MISS_ENBL 0x0400
+#define RX_128_BYTE_ENBL 0x0800
+#define TX_COL_COUNT_OVRFLOW_ENBL 0x1000
+#define RX_MISS_COUNT_OVRFLOW_ENBL 0x2000
+#define RX_DEST_MATCH_ENBL 0x8000
+
+/* PP_LineCTL - Line Control bit definition - Read/write */
+#define SERIAL_RX_ON 0x0040
+#define SERIAL_TX_ON 0x0080
+#define AUI_ONLY 0x0100
+#define AUTO_AUI_10BASET 0x0200
+#define MODIFIED_BACKOFF 0x0800
+#define NO_AUTO_POLARITY 0x1000
+#define TWO_PART_DEFDIS 0x2000
+#define LOW_RX_SQUELCH 0x4000
+
+/* PP_SelfCTL - Software Self Control bit definition - Read/write */
+#define POWER_ON_RESET 0x0040
+#define SW_STOP 0x0100
+#define SLEEP_ON 0x0200
+#define AUTO_WAKEUP 0x0400
+#define HCB0_ENBL 0x1000
+#define HCB1_ENBL 0x2000
+#define HCB0 0x4000
+#define HCB1 0x8000
+
+/* PP_BusCTL - ISA Bus Control bit definition - Read/write */
+#define RESET_RX_DMA 0x0040
+#define MEMORY_ON 0x0400
+#define DMA_BURST_MODE 0x0800
+#define IO_CHANNEL_READY_ON 0x1000
+#define RX_DMA_SIZE_64K 0x2000
+#define ENABLE_IRQ 0x8000
+
+/* PP_TestCTL - Test Control bit definition - Read/write */
+#define LINK_OFF 0x0080
+#define ENDEC_LOOPBACK 0x0200
+#define AUI_LOOPBACK 0x0400
+#define BACKOFF_OFF 0x0800
+#define FDX_8900 0x4000
+#define FAST_TEST 0x8000
+
+/* PP_RxEvent - Receive Event Bit definition - Read-only */
+#define RX_IA_HASHED 0x0040
+#define RX_DRIBBLE 0x0080
+#define RX_OK 0x0100
+#define RX_HASHED 0x0200
+#define RX_IA 0x0400
+#define RX_BROADCAST 0x0800
+#define RX_CRC_ERROR 0x1000
+#define RX_RUNT 0x2000
+#define RX_EXTRA_DATA 0x4000
+
+#define HASH_INDEX_MASK 0x0FC00
+
+/* PP_TxEvent - Transmit Event Bit definition - Read-only */
+#define TX_LOST_CRS 0x0040
+#define TX_SQE_ERROR 0x0080
+#define TX_OK 0x0100
+#define TX_LATE_COL 0x0200
+#define TX_JBR 0x0400
+#define TX_16_COL 0x8000
+#define TX_SEND_OK_BITS (TX_OK|TX_LOST_CRS)
+#define TX_COL_COUNT_MASK 0x7800
+
+/* PP_BufEvent - Buffer Event Bit definition - Read-only */
+#define SW_INTERRUPT 0x0040
+#define RX_DMA 0x0080
+#define READY_FOR_TX 0x0100
+#define TX_UNDERRUN 0x0200
+#define RX_MISS 0x0400
+#define RX_128_BYTE 0x0800
+#define TX_COL_OVRFLW 0x1000
+#define RX_MISS_OVRFLW 0x2000
+#define RX_DEST_MATCH 0x8000
+
+/* PP_LineST - Ethernet Line Status bit definition - Read-only */
+#define LINK_OK 0x0080
+#define AUI_ON 0x0100
+#define TENBASET_ON 0x0200
+#define POLARITY_OK 0x1000
+#define CRS_OK 0x4000
+
+/* PP_SelfST - Chip Software Status bit definition */
+#define ACTIVE_33V 0x0040
+#define INIT_DONE 0x0080
+#define SI_BUSY 0x0100
+#define EEPROM_PRESENT 0x0200
+#define EEPROM_OK 0x0400
+#define EL_PRESENT 0x0800
+#define EE_SIZE_64 0x1000
+
+/* PP_BusST - ISA Bus Status bit definition */
+#define TX_BID_ERROR 0x0080
+#define READY_FOR_TX_NOW 0x0100
+
+/* PP_AutoNegCTL - Auto Negotiation Control bit definition */
+#define RE_NEG_NOW 0x0040
+#define ALLOW_FDX 0x0080
+#define AUTO_NEG_ENABLE 0x0100
+#define NLP_ENABLE 0x0200
+#define FORCE_FDX 0x8000
+#define AUTO_NEG_BITS (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE)
+#define AUTO_NEG_MASK (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE|ALLOW_FDX|RE_NEG_NOW)
+
+/* PP_AutoNegST - Auto Negotiation Status bit definition */
+#define AUTO_NEG_BUSY 0x0080
+#define FLP_LINK 0x0100
+#define FLP_LINK_GOOD 0x0800
+#define LINK_FAULT 0x1000
+#define HDX_ACTIVE 0x4000
+#define FDX_ACTIVE 0x8000
+
+/* The following block defines the ISQ event types */
+#define ISQ_RECEIVER_EVENT 0x04
+#define ISQ_TRANSMITTER_EVENT 0x08
+#define ISQ_BUFFER_EVENT 0x0c
+#define ISQ_RX_MISS_EVENT 0x10
+#define ISQ_TX_COL_EVENT 0x12
+
+#define ISQ_EVENT_MASK 0x003F /* ISQ mask to find out type of event */
+#define ISQ_HIST 16 /* small history buffer */
+#define AUTOINCREMENT 0x8000 /* Bit mask to set bit-15 for autoincrement */
+
+#define TXRXBUFSIZE 0x0600
+#define RXDMABUFSIZE 0x8000
+#define RXDMASIZE 0x4000
+#define TXRX_LENGTH_MASK 0x07FF
+
+/* rx options bits */
+#define RCV_WITH_RXON 1 /* Set SerRx ON */
+#define RCV_COUNTS 2 /* Use Framecnt1 */
+#define RCV_PONG 4 /* Pong respondent */
+#define RCV_DONG 8 /* Dong operation */
+#define RCV_POLLING 0x10 /* Poll RxEvent */
+#define RCV_ISQ 0x20 /* Use ISQ, int */
+#define RCV_AUTO_DMA 0x100 /* Set AutoRxDMAE */
+#define RCV_DMA 0x200 /* Set RxDMA only */
+#define RCV_DMA_ALL 0x400 /* Copy all DMA'ed */
+#define RCV_FIXED_DATA 0x800 /* Every frame same */
+#define RCV_IO 0x1000 /* Use ISA IO only */
+#define RCV_MEMORY 0x2000 /* Use ISA Memory */
+
+#define RAM_SIZE 0x1000 /* The card has 4k bytes or RAM */
+#define PKT_START PP_TxFrame /* Start of packet RAM */
+
+#define RX_FRAME_PORT 0x0000
+#define TX_FRAME_PORT RX_FRAME_PORT
+#define TX_CMD_PORT 0x0004
+#define TX_NOW 0x0000 /* Tx packet after 5 bytes copied */
+#define TX_AFTER_381 0x0040 /* Tx packet after 381 bytes copied */
+#define TX_AFTER_ALL 0x00c0 /* Tx packet after all bytes copied */
+#define TX_LEN_PORT 0x0006
+#define ISQ_PORT 0x0008
+#define ADD_PORT 0x000A
+#define DATA_PORT 0x000C
+
+#define EEPROM_WRITE_EN 0x00F0
+#define EEPROM_WRITE_DIS 0x0000
+#define EEPROM_WRITE_CMD 0x0100
+#define EEPROM_READ_CMD 0x0200
+
+/* Receive Header */
+/* Description of header of each packet in receive area of memory */
+#define RBUF_EVENT_LOW 0 /* Low byte of RxEvent - status of received frame */
+#define RBUF_EVENT_HIGH 1 /* High byte of RxEvent - status of received frame */
+#define RBUF_LEN_LOW 2 /* Length of received data - low byte */
+#define RBUF_LEN_HI 3 /* Length of received data - high byte */
+#define RBUF_HEAD_LEN 4 /* Length of this header */
+
+#define CHIP_READ 0x1 /* Used to mark state of the repins code (chip or dma) */
+#define DMA_READ 0x2 /* Used to mark state of the repins code (chip or dma) */
+
+/* for bios scan */
+/* */
+#ifdef CSDEBUG
+/* use these values for debugging bios scan */
+#define BIOS_START_SEG 0x00000
+#define BIOS_OFFSET_INC 0x0010
+#else
+#define BIOS_START_SEG 0x0c000
+#define BIOS_OFFSET_INC 0x0200
+#endif
+
+#define BIOS_LAST_OFFSET 0x0fc00
+
+/* Byte offsets into the EEPROM configuration buffer */
+#define ISA_CNF_OFFSET 0x6
+#define TX_CTL_OFFSET (ISA_CNF_OFFSET + 8) /* 8900 eeprom */
+#define AUTO_NEG_CNF_OFFSET (ISA_CNF_OFFSET + 8) /* 8920 eeprom */
+
+ /* the assumption here is that the bits in the eeprom are generally */
+ /* in the same position as those in the autonegctl register. */
+ /* Of course the IMM bit is not in that register so it must be */
+ /* masked out */
+#define EE_FORCE_FDX 0x8000
+#define EE_NLP_ENABLE 0x0200
+#define EE_AUTO_NEG_ENABLE 0x0100
+#define EE_ALLOW_FDX 0x0080
+#define EE_AUTO_NEG_CNF_MASK (EE_FORCE_FDX|EE_NLP_ENABLE|EE_AUTO_NEG_ENABLE|EE_ALLOW_FDX)
+
+#define IMM_BIT 0x0040 /* ignore missing media */
+
+#define ADAPTER_CNF_OFFSET (AUTO_NEG_CNF_OFFSET + 2)
+#define A_CNF_10B_T 0x0001
+#define A_CNF_AUI 0x0002
+#define A_CNF_10B_2 0x0004
+#define A_CNF_MEDIA_TYPE 0x0070
+#define A_CNF_MEDIA_AUTO 0x0070
+#define A_CNF_MEDIA_10B_T 0x0020
+#define A_CNF_MEDIA_AUI 0x0040
+#define A_CNF_MEDIA_10B_2 0x0010
+#define A_CNF_DC_DC_POLARITY 0x0080
+#define A_CNF_NO_AUTO_POLARITY 0x2000
+#define A_CNF_LOW_RX_SQUELCH 0x4000
+#define A_CNF_EXTND_10B_2 0x8000
+
+#define PACKET_PAGE_OFFSET 0x8
+
+/* Bit definitions for the ISA configuration word from the EEPROM */
+#define INT_NO_MASK 0x000F
+#define DMA_NO_MASK 0x0070
+#define ISA_DMA_SIZE 0x0200
+#define ISA_AUTO_RxDMA 0x0400
+#define ISA_RxDMA 0x0800
+#define DMA_BURST 0x1000
+#define STREAM_TRANSFER 0x2000
+#define ANY_ISA_DMA (ISA_AUTO_RxDMA | ISA_RxDMA)
+
+/* DMA controller registers */
+#define DMA_BASE 0x00 /* DMA controller base */
+#define DMA_BASE_2 0x0C0 /* DMA controller base */
+
+#define DMA_STAT 0x0D0 /* DMA controller status register */
+#define DMA_MASK 0x0D4 /* DMA controller mask register */
+#define DMA_MODE 0x0D6 /* DMA controller mode register */
+#define DMA_RESETFF 0x0D8 /* DMA controller first/last flip flop */
+
+/* DMA data */
+#define DMA_DISABLE 0x04 /* Disable channel n */
+#define DMA_ENABLE 0x00 /* Enable channel n */
+/* Demand transfers, incr. address, auto init, writes, ch. n */
+#define DMA_RX_MODE 0x14
+/* Demand transfers, incr. address, auto init, reads, ch. n */
+#define DMA_TX_MODE 0x18
+
+#define DMA_SIZE (16*1024) /* Size of dma buffer - 16k */
+
+#define CS8900 0x0000
+#define CS8920 0x4000
+#define CS8920M 0x6000
+#define REVISON_BITS 0x1F00
+#define EEVER_NUMBER 0x12
+#define CHKSUM_LEN 0x14
+#define CHKSUM_VAL 0x0000
+#define START_EEPROM_DATA 0x001c /* Offset into eeprom for start of data */
+#define IRQ_MAP_EEPROM_DATA 0x0046 /* Offset into eeprom for the IRQ map */
+#define IRQ_MAP_LEN 0x0004 /* No of bytes to read for the IRQ map */
+#define PNP_IRQ_FRMT 0x0022 /* PNP small item IRQ format */
+#define CS8900_IRQ_MAP 0x1c20 /* This IRQ map is fixed */
+
+#define CS8920_NO_INTS 0x0F /* Max CS8920 interrupt select # */
+
+#define PNP_ADD_PORT 0x0279
+#define PNP_WRITE_PORT 0x0A79
+
+#define GET_PNP_ISA_STRUCT 0x40
+#define PNP_ISA_STRUCT_LEN 0x06
+#define PNP_CSN_CNT_OFF 0x01
+#define PNP_RD_PORT_OFF 0x02
+#define PNP_FUNCTION_OK 0x00
+#define PNP_WAKE 0x03
+#define PNP_RSRC_DATA 0x04
+#define PNP_RSRC_READY 0x01
+#define PNP_STATUS 0x05
+#define PNP_ACTIVATE 0x30
+#define PNP_CNF_IO_H 0x60
+#define PNP_CNF_IO_L 0x61
+#define PNP_CNF_INT 0x70
+#define PNP_CNF_DMA 0x74
+#define PNP_CNF_MEM 0x48
+
+#define BIT0 1
+#define BIT15 0x8000
+
projects / firefly-linux-kernel-4.4.55.git / commitdiff