#include <linux/fb.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
-#include <linux/i2c/qt602240_ts.h>
+#include <linux/i2c/atmel_mxt_ts.h>
#include <linux/mfd/max8998.h>
#include <linux/mfd/wm8994/pdata.h>
#include <linux/regulator/fixed.h>
To compile this driver as a module, choose M here: the
module will be called ad7879-spi.
+config TOUCHSCREEN_ATMEL_MXT
+ tristate "Atmel mXT I2C Touchscreen"
+ depends on I2C
+ help
+ Say Y here if you have Atmel mXT series I2C touchscreen,
+ such as AT42QT602240/ATMXT224, connected to your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called atmel_mxt_ts.
+
config TOUCHSCREEN_BITSY
tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
depends on SA1100_BITSY
To compile this driver as a module, choose M here: the
module will be called penmount.
-config TOUCHSCREEN_QT602240
- tristate "QT602240 I2C Touchscreen"
- depends on I2C
- help
- Say Y here if you have the AT42QT602240/ATMXT224 I2C touchscreen
- connected to your system.
-
- If unsure, say N.
-
- To compile this driver as a module, choose M here: the
- module will be called qt602240_ts.
-
config TOUCHSCREEN_MIGOR
tristate "Renesas MIGO-R touchscreen"
depends on SH_MIGOR && I2C
obj-$(CONFIG_TOUCHSCREEN_AD7879_I2C) += ad7879-i2c.o
obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o
obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
+obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT) += atmel_mxt_ts.o
obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o
obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE) += usbtouchscreen.o
obj-$(CONFIG_TOUCHSCREEN_PCAP) += pcap_ts.o
obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
-obj-$(CONFIG_TOUCHSCREEN_QT602240) += qt602240_ts.o
obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o
--- /dev/null
+/*
+ * AT42QT602240/ATMXT224 Touchscreen driver
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+/* Version */
+#define QT602240_VER_20 20
+#define QT602240_VER_21 21
+#define QT602240_VER_22 22
+
+/* Slave addresses */
+#define QT602240_APP_LOW 0x4a
+#define QT602240_APP_HIGH 0x4b
+#define QT602240_BOOT_LOW 0x24
+#define QT602240_BOOT_HIGH 0x25
+
+/* Firmware */
+#define QT602240_FW_NAME "qt602240.fw"
+
+/* Registers */
+#define QT602240_FAMILY_ID 0x00
+#define QT602240_VARIANT_ID 0x01
+#define QT602240_VERSION 0x02
+#define QT602240_BUILD 0x03
+#define QT602240_MATRIX_X_SIZE 0x04
+#define QT602240_MATRIX_Y_SIZE 0x05
+#define QT602240_OBJECT_NUM 0x06
+#define QT602240_OBJECT_START 0x07
+
+#define QT602240_OBJECT_SIZE 6
+
+/* Object types */
+#define QT602240_DEBUG_DIAGNOSTIC 37
+#define QT602240_GEN_MESSAGE 5
+#define QT602240_GEN_COMMAND 6
+#define QT602240_GEN_POWER 7
+#define QT602240_GEN_ACQUIRE 8
+#define QT602240_TOUCH_MULTI 9
+#define QT602240_TOUCH_KEYARRAY 15
+#define QT602240_TOUCH_PROXIMITY 23
+#define QT602240_PROCI_GRIPFACE 20
+#define QT602240_PROCG_NOISE 22
+#define QT602240_PROCI_ONETOUCH 24
+#define QT602240_PROCI_TWOTOUCH 27
+#define QT602240_SPT_COMMSCONFIG 18 /* firmware ver 21 over */
+#define QT602240_SPT_GPIOPWM 19
+#define QT602240_SPT_SELFTEST 25
+#define QT602240_SPT_CTECONFIG 28
+#define QT602240_SPT_USERDATA 38 /* firmware ver 21 over */
+
+/* QT602240_GEN_COMMAND field */
+#define QT602240_COMMAND_RESET 0
+#define QT602240_COMMAND_BACKUPNV 1
+#define QT602240_COMMAND_CALIBRATE 2
+#define QT602240_COMMAND_REPORTALL 3
+#define QT602240_COMMAND_DIAGNOSTIC 5
+
+/* QT602240_GEN_POWER field */
+#define QT602240_POWER_IDLEACQINT 0
+#define QT602240_POWER_ACTVACQINT 1
+#define QT602240_POWER_ACTV2IDLETO 2
+
+/* QT602240_GEN_ACQUIRE field */
+#define QT602240_ACQUIRE_CHRGTIME 0
+#define QT602240_ACQUIRE_TCHDRIFT 2
+#define QT602240_ACQUIRE_DRIFTST 3
+#define QT602240_ACQUIRE_TCHAUTOCAL 4
+#define QT602240_ACQUIRE_SYNC 5
+#define QT602240_ACQUIRE_ATCHCALST 6
+#define QT602240_ACQUIRE_ATCHCALSTHR 7
+
+/* QT602240_TOUCH_MULTI field */
+#define QT602240_TOUCH_CTRL 0
+#define QT602240_TOUCH_XORIGIN 1
+#define QT602240_TOUCH_YORIGIN 2
+#define QT602240_TOUCH_XSIZE 3
+#define QT602240_TOUCH_YSIZE 4
+#define QT602240_TOUCH_BLEN 6
+#define QT602240_TOUCH_TCHTHR 7
+#define QT602240_TOUCH_TCHDI 8
+#define QT602240_TOUCH_ORIENT 9
+#define QT602240_TOUCH_MOVHYSTI 11
+#define QT602240_TOUCH_MOVHYSTN 12
+#define QT602240_TOUCH_NUMTOUCH 14
+#define QT602240_TOUCH_MRGHYST 15
+#define QT602240_TOUCH_MRGTHR 16
+#define QT602240_TOUCH_AMPHYST 17
+#define QT602240_TOUCH_XRANGE_LSB 18
+#define QT602240_TOUCH_XRANGE_MSB 19
+#define QT602240_TOUCH_YRANGE_LSB 20
+#define QT602240_TOUCH_YRANGE_MSB 21
+#define QT602240_TOUCH_XLOCLIP 22
+#define QT602240_TOUCH_XHICLIP 23
+#define QT602240_TOUCH_YLOCLIP 24
+#define QT602240_TOUCH_YHICLIP 25
+#define QT602240_TOUCH_XEDGECTRL 26
+#define QT602240_TOUCH_XEDGEDIST 27
+#define QT602240_TOUCH_YEDGECTRL 28
+#define QT602240_TOUCH_YEDGEDIST 29
+#define QT602240_TOUCH_JUMPLIMIT 30 /* firmware ver 22 over */
+
+/* QT602240_PROCI_GRIPFACE field */
+#define QT602240_GRIPFACE_CTRL 0
+#define QT602240_GRIPFACE_XLOGRIP 1
+#define QT602240_GRIPFACE_XHIGRIP 2
+#define QT602240_GRIPFACE_YLOGRIP 3
+#define QT602240_GRIPFACE_YHIGRIP 4
+#define QT602240_GRIPFACE_MAXTCHS 5
+#define QT602240_GRIPFACE_SZTHR1 7
+#define QT602240_GRIPFACE_SZTHR2 8
+#define QT602240_GRIPFACE_SHPTHR1 9
+#define QT602240_GRIPFACE_SHPTHR2 10
+#define QT602240_GRIPFACE_SUPEXTTO 11
+
+/* QT602240_PROCI_NOISE field */
+#define QT602240_NOISE_CTRL 0
+#define QT602240_NOISE_OUTFLEN 1
+#define QT602240_NOISE_GCAFUL_LSB 3
+#define QT602240_NOISE_GCAFUL_MSB 4
+#define QT602240_NOISE_GCAFLL_LSB 5
+#define QT602240_NOISE_GCAFLL_MSB 6
+#define QT602240_NOISE_ACTVGCAFVALID 7
+#define QT602240_NOISE_NOISETHR 8
+#define QT602240_NOISE_FREQHOPSCALE 10
+#define QT602240_NOISE_FREQ0 11
+#define QT602240_NOISE_FREQ1 12
+#define QT602240_NOISE_FREQ2 13
+#define QT602240_NOISE_FREQ3 14
+#define QT602240_NOISE_FREQ4 15
+#define QT602240_NOISE_IDLEGCAFVALID 16
+
+/* QT602240_SPT_COMMSCONFIG */
+#define QT602240_COMMS_CTRL 0
+#define QT602240_COMMS_CMD 1
+
+/* QT602240_SPT_CTECONFIG field */
+#define QT602240_CTE_CTRL 0
+#define QT602240_CTE_CMD 1
+#define QT602240_CTE_MODE 2
+#define QT602240_CTE_IDLEGCAFDEPTH 3
+#define QT602240_CTE_ACTVGCAFDEPTH 4
+#define QT602240_CTE_VOLTAGE 5 /* firmware ver 21 over */
+
+#define QT602240_VOLTAGE_DEFAULT 2700000
+#define QT602240_VOLTAGE_STEP 10000
+
+/* Define for QT602240_GEN_COMMAND */
+#define QT602240_BOOT_VALUE 0xa5
+#define QT602240_BACKUP_VALUE 0x55
+#define QT602240_BACKUP_TIME 25 /* msec */
+#define QT602240_RESET_TIME 65 /* msec */
+
+#define QT602240_FWRESET_TIME 175 /* msec */
+
+/* Command to unlock bootloader */
+#define QT602240_UNLOCK_CMD_MSB 0xaa
+#define QT602240_UNLOCK_CMD_LSB 0xdc
+
+/* Bootloader mode status */
+#define QT602240_WAITING_BOOTLOAD_CMD 0xc0 /* valid 7 6 bit only */
+#define QT602240_WAITING_FRAME_DATA 0x80 /* valid 7 6 bit only */
+#define QT602240_FRAME_CRC_CHECK 0x02
+#define QT602240_FRAME_CRC_FAIL 0x03
+#define QT602240_FRAME_CRC_PASS 0x04
+#define QT602240_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */
+#define QT602240_BOOT_STATUS_MASK 0x3f
+
+/* Touch status */
+#define QT602240_SUPPRESS (1 << 1)
+#define QT602240_AMP (1 << 2)
+#define QT602240_VECTOR (1 << 3)
+#define QT602240_MOVE (1 << 4)
+#define QT602240_RELEASE (1 << 5)
+#define QT602240_PRESS (1 << 6)
+#define QT602240_DETECT (1 << 7)
+
+/* Touchscreen absolute values */
+#define QT602240_MAX_XC 0x3ff
+#define QT602240_MAX_YC 0x3ff
+#define QT602240_MAX_AREA 0xff
+
+#define QT602240_MAX_FINGER 10
+
+/* Initial register values recommended from chip vendor */
+static const u8 init_vals_ver_20[] = {
+ /* QT602240_GEN_COMMAND(6) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_GEN_POWER(7) */
+ 0x20, 0xff, 0x32,
+ /* QT602240_GEN_ACQUIRE(8) */
+ 0x08, 0x05, 0x05, 0x00, 0x00, 0x00, 0x05, 0x14,
+ /* QT602240_TOUCH_MULTI(9) */
+ 0x00, 0x00, 0x00, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x02, 0x00,
+ 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x64,
+ /* QT602240_TOUCH_KEYARRAY(15) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00,
+ /* QT602240_SPT_GPIOPWM(19) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00,
+ /* QT602240_PROCI_GRIPFACE(20) */
+ 0x00, 0x64, 0x64, 0x64, 0x64, 0x00, 0x00, 0x1e, 0x14, 0x04,
+ 0x1e, 0x00,
+ /* QT602240_PROCG_NOISE(22) */
+ 0x05, 0x00, 0x00, 0x19, 0x00, 0xe7, 0xff, 0x04, 0x32, 0x00,
+ 0x01, 0x0a, 0x0f, 0x14, 0x00, 0x00, 0xe8,
+ /* QT602240_TOUCH_PROXIMITY(23) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_ONETOUCH(24) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_SPT_SELFTEST(25) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_TWOTOUCH(27) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_SPT_CTECONFIG(28) */
+ 0x00, 0x00, 0x00, 0x04, 0x08,
+};
+
+static const u8 init_vals_ver_21[] = {
+ /* QT602240_GEN_COMMAND(6) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_GEN_POWER(7) */
+ 0x20, 0xff, 0x32,
+ /* QT602240_GEN_ACQUIRE(8) */
+ 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
+ /* QT602240_TOUCH_MULTI(9) */
+ 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
+ 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_TOUCH_KEYARRAY(15) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00,
+ /* QT602240_SPT_GPIOPWM(19) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_GRIPFACE(20) */
+ 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
+ 0x0f, 0x0a,
+ /* QT602240_PROCG_NOISE(22) */
+ 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
+ 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
+ /* QT602240_TOUCH_PROXIMITY(23) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_ONETOUCH(24) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_SPT_SELFTEST(25) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_TWOTOUCH(27) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_SPT_CTECONFIG(28) */
+ 0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
+};
+
+static const u8 init_vals_ver_22[] = {
+ /* QT602240_GEN_COMMAND(6) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_GEN_POWER(7) */
+ 0x20, 0xff, 0x32,
+ /* QT602240_GEN_ACQUIRE(8) */
+ 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
+ /* QT602240_TOUCH_MULTI(9) */
+ 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
+ 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00,
+ /* QT602240_TOUCH_KEYARRAY(15) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00,
+ /* QT602240_SPT_GPIOPWM(19) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_GRIPFACE(20) */
+ 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
+ 0x0f, 0x0a,
+ /* QT602240_PROCG_NOISE(22) */
+ 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
+ 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
+ /* QT602240_TOUCH_PROXIMITY(23) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_ONETOUCH(24) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_SPT_SELFTEST(25) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_PROCI_TWOTOUCH(27) */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* QT602240_SPT_CTECONFIG(28) */
+ 0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
+};
+
+struct qt602240_info {
+ u8 family_id;
+ u8 variant_id;
+ u8 version;
+ u8 build;
+ u8 matrix_xsize;
+ u8 matrix_ysize;
+ u8 object_num;
+};
+
+struct qt602240_object {
+ u8 type;
+ u16 start_address;
+ u8 size;
+ u8 instances;
+ u8 num_report_ids;
+
+ /* to map object and message */
+ u8 max_reportid;
+};
+
+struct qt602240_message {
+ u8 reportid;
+ u8 message[7];
+ u8 checksum;
+};
+
+struct qt602240_finger {
+ int status;
+ int x;
+ int y;
+ int area;
+};
+
+/* Each client has this additional data */
+struct qt602240_data {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ const struct qt602240_platform_data *pdata;
+ struct qt602240_object *object_table;
+ struct qt602240_info info;
+ struct qt602240_finger finger[QT602240_MAX_FINGER];
+ unsigned int irq;
+};
+
+static bool qt602240_object_readable(unsigned int type)
+{
+ switch (type) {
+ case QT602240_GEN_MESSAGE:
+ case QT602240_GEN_COMMAND:
+ case QT602240_GEN_POWER:
+ case QT602240_GEN_ACQUIRE:
+ case QT602240_TOUCH_MULTI:
+ case QT602240_TOUCH_KEYARRAY:
+ case QT602240_TOUCH_PROXIMITY:
+ case QT602240_PROCI_GRIPFACE:
+ case QT602240_PROCG_NOISE:
+ case QT602240_PROCI_ONETOUCH:
+ case QT602240_PROCI_TWOTOUCH:
+ case QT602240_SPT_COMMSCONFIG:
+ case QT602240_SPT_GPIOPWM:
+ case QT602240_SPT_SELFTEST:
+ case QT602240_SPT_CTECONFIG:
+ case QT602240_SPT_USERDATA:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool qt602240_object_writable(unsigned int type)
+{
+ switch (type) {
+ case QT602240_GEN_COMMAND:
+ case QT602240_GEN_POWER:
+ case QT602240_GEN_ACQUIRE:
+ case QT602240_TOUCH_MULTI:
+ case QT602240_TOUCH_KEYARRAY:
+ case QT602240_TOUCH_PROXIMITY:
+ case QT602240_PROCI_GRIPFACE:
+ case QT602240_PROCG_NOISE:
+ case QT602240_PROCI_ONETOUCH:
+ case QT602240_PROCI_TWOTOUCH:
+ case QT602240_SPT_GPIOPWM:
+ case QT602240_SPT_SELFTEST:
+ case QT602240_SPT_CTECONFIG:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static void qt602240_dump_message(struct device *dev,
+ struct qt602240_message *message)
+{
+ dev_dbg(dev, "reportid:\t0x%x\n", message->reportid);
+ dev_dbg(dev, "message1:\t0x%x\n", message->message[0]);
+ dev_dbg(dev, "message2:\t0x%x\n", message->message[1]);
+ dev_dbg(dev, "message3:\t0x%x\n", message->message[2]);
+ dev_dbg(dev, "message4:\t0x%x\n", message->message[3]);
+ dev_dbg(dev, "message5:\t0x%x\n", message->message[4]);
+ dev_dbg(dev, "message6:\t0x%x\n", message->message[5]);
+ dev_dbg(dev, "message7:\t0x%x\n", message->message[6]);
+ dev_dbg(dev, "checksum:\t0x%x\n", message->checksum);
+}
+
+static int qt602240_check_bootloader(struct i2c_client *client,
+ unsigned int state)
+{
+ u8 val;
+
+recheck:
+ if (i2c_master_recv(client, &val, 1) != 1) {
+ dev_err(&client->dev, "%s: i2c recv failed\n", __func__);
+ return -EIO;
+ }
+
+ switch (state) {
+ case QT602240_WAITING_BOOTLOAD_CMD:
+ case QT602240_WAITING_FRAME_DATA:
+ val &= ~QT602240_BOOT_STATUS_MASK;
+ break;
+ case QT602240_FRAME_CRC_PASS:
+ if (val == QT602240_FRAME_CRC_CHECK)
+ goto recheck;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (val != state) {
+ dev_err(&client->dev, "Unvalid bootloader mode state\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qt602240_unlock_bootloader(struct i2c_client *client)
+{
+ u8 buf[2];
+
+ buf[0] = QT602240_UNLOCK_CMD_LSB;
+ buf[1] = QT602240_UNLOCK_CMD_MSB;
+
+ if (i2c_master_send(client, buf, 2) != 2) {
+ dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int qt602240_fw_write(struct i2c_client *client,
+ const u8 *data, unsigned int frame_size)
+{
+ if (i2c_master_send(client, data, frame_size) != frame_size) {
+ dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int __qt602240_read_reg(struct i2c_client *client,
+ u16 reg, u16 len, void *val)
+{
+ struct i2c_msg xfer[2];
+ u8 buf[2];
+
+ buf[0] = reg & 0xff;
+ buf[1] = (reg >> 8) & 0xff;
+
+ /* Write register */
+ xfer[0].addr = client->addr;
+ xfer[0].flags = 0;
+ xfer[0].len = 2;
+ xfer[0].buf = buf;
+
+ /* Read data */
+ xfer[1].addr = client->addr;
+ xfer[1].flags = I2C_M_RD;
+ xfer[1].len = len;
+ xfer[1].buf = val;
+
+ if (i2c_transfer(client->adapter, xfer, 2) != 2) {
+ dev_err(&client->dev, "%s: i2c transfer failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int qt602240_read_reg(struct i2c_client *client, u16 reg, u8 *val)
+{
+ return __qt602240_read_reg(client, reg, 1, val);
+}
+
+static int qt602240_write_reg(struct i2c_client *client, u16 reg, u8 val)
+{
+ u8 buf[3];
+
+ buf[0] = reg & 0xff;
+ buf[1] = (reg >> 8) & 0xff;
+ buf[2] = val;
+
+ if (i2c_master_send(client, buf, 3) != 3) {
+ dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int qt602240_read_object_table(struct i2c_client *client,
+ u16 reg, u8 *object_buf)
+{
+ return __qt602240_read_reg(client, reg, QT602240_OBJECT_SIZE,
+ object_buf);
+}
+
+static struct qt602240_object *
+qt602240_get_object(struct qt602240_data *data, u8 type)
+{
+ struct qt602240_object *object;
+ int i;
+
+ for (i = 0; i < data->info.object_num; i++) {
+ object = data->object_table + i;
+ if (object->type == type)
+ return object;
+ }
+
+ dev_err(&data->client->dev, "Invalid object type\n");
+ return NULL;
+}
+
+static int qt602240_read_message(struct qt602240_data *data,
+ struct qt602240_message *message)
+{
+ struct qt602240_object *object;
+ u16 reg;
+
+ object = qt602240_get_object(data, QT602240_GEN_MESSAGE);
+ if (!object)
+ return -EINVAL;
+
+ reg = object->start_address;
+ return __qt602240_read_reg(data->client, reg,
+ sizeof(struct qt602240_message), message);
+}
+
+static int qt602240_read_object(struct qt602240_data *data,
+ u8 type, u8 offset, u8 *val)
+{
+ struct qt602240_object *object;
+ u16 reg;
+
+ object = qt602240_get_object(data, type);
+ if (!object)
+ return -EINVAL;
+
+ reg = object->start_address;
+ return __qt602240_read_reg(data->client, reg + offset, 1, val);
+}
+
+static int qt602240_write_object(struct qt602240_data *data,
+ u8 type, u8 offset, u8 val)
+{
+ struct qt602240_object *object;
+ u16 reg;
+
+ object = qt602240_get_object(data, type);
+ if (!object)
+ return -EINVAL;
+
+ reg = object->start_address;
+ return qt602240_write_reg(data->client, reg + offset, val);
+}
+
+static void qt602240_input_report(struct qt602240_data *data, int single_id)
+{
+ struct qt602240_finger *finger = data->finger;
+ struct input_dev *input_dev = data->input_dev;
+ int status = finger[single_id].status;
+ int finger_num = 0;
+ int id;
+
+ for (id = 0; id < QT602240_MAX_FINGER; id++) {
+ if (!finger[id].status)
+ continue;
+
+ input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
+ finger[id].status != QT602240_RELEASE ?
+ finger[id].area : 0);
+ input_report_abs(input_dev, ABS_MT_POSITION_X,
+ finger[id].x);
+ input_report_abs(input_dev, ABS_MT_POSITION_Y,
+ finger[id].y);
+ input_mt_sync(input_dev);
+
+ if (finger[id].status == QT602240_RELEASE)
+ finger[id].status = 0;
+ else
+ finger_num++;
+ }
+
+ input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
+
+ if (status != QT602240_RELEASE) {
+ input_report_abs(input_dev, ABS_X, finger[single_id].x);
+ input_report_abs(input_dev, ABS_Y, finger[single_id].y);
+ }
+
+ input_sync(input_dev);
+}
+
+static void qt602240_input_touchevent(struct qt602240_data *data,
+ struct qt602240_message *message, int id)
+{
+ struct qt602240_finger *finger = data->finger;
+ struct device *dev = &data->client->dev;
+ u8 status = message->message[0];
+ int x;
+ int y;
+ int area;
+
+ /* Check the touch is present on the screen */
+ if (!(status & QT602240_DETECT)) {
+ if (status & QT602240_RELEASE) {
+ dev_dbg(dev, "[%d] released\n", id);
+
+ finger[id].status = QT602240_RELEASE;
+ qt602240_input_report(data, id);
+ }
+ return;
+ }
+
+ /* Check only AMP detection */
+ if (!(status & (QT602240_PRESS | QT602240_MOVE)))
+ return;
+
+ x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6);
+ y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2);
+ area = message->message[4];
+
+ dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
+ status & QT602240_MOVE ? "moved" : "pressed",
+ x, y, area);
+
+ finger[id].status = status & QT602240_MOVE ?
+ QT602240_MOVE : QT602240_PRESS;
+ finger[id].x = x;
+ finger[id].y = y;
+ finger[id].area = area;
+
+ qt602240_input_report(data, id);
+}
+
+static irqreturn_t qt602240_interrupt(int irq, void *dev_id)
+{
+ struct qt602240_data *data = dev_id;
+ struct qt602240_message message;
+ struct qt602240_object *object;
+ struct device *dev = &data->client->dev;
+ int id;
+ u8 reportid;
+ u8 max_reportid;
+ u8 min_reportid;
+
+ do {
+ if (qt602240_read_message(data, &message)) {
+ dev_err(dev, "Failed to read message\n");
+ goto end;
+ }
+
+ reportid = message.reportid;
+
+ /* whether reportid is thing of QT602240_TOUCH_MULTI */
+ object = qt602240_get_object(data, QT602240_TOUCH_MULTI);
+ if (!object)
+ goto end;
+
+ max_reportid = object->max_reportid;
+ min_reportid = max_reportid - object->num_report_ids + 1;
+ id = reportid - min_reportid;
+
+ if (reportid >= min_reportid && reportid <= max_reportid)
+ qt602240_input_touchevent(data, &message, id);
+ else
+ qt602240_dump_message(dev, &message);
+ } while (reportid != 0xff);
+
+end:
+ return IRQ_HANDLED;
+}
+
+static int qt602240_check_reg_init(struct qt602240_data *data)
+{
+ struct qt602240_object *object;
+ struct device *dev = &data->client->dev;
+ int index = 0;
+ int i, j;
+ u8 version = data->info.version;
+ u8 *init_vals;
+
+ switch (version) {
+ case QT602240_VER_20:
+ init_vals = (u8 *)init_vals_ver_20;
+ break;
+ case QT602240_VER_21:
+ init_vals = (u8 *)init_vals_ver_21;
+ break;
+ case QT602240_VER_22:
+ init_vals = (u8 *)init_vals_ver_22;
+ break;
+ default:
+ dev_err(dev, "Firmware version %d doesn't support\n", version);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < data->info.object_num; i++) {
+ object = data->object_table + i;
+
+ if (!qt602240_object_writable(object->type))
+ continue;
+
+ for (j = 0; j < object->size + 1; j++)
+ qt602240_write_object(data, object->type, j,
+ init_vals[index + j]);
+
+ index += object->size + 1;
+ }
+
+ return 0;
+}
+
+static int qt602240_check_matrix_size(struct qt602240_data *data)
+{
+ const struct qt602240_platform_data *pdata = data->pdata;
+ struct device *dev = &data->client->dev;
+ int mode = -1;
+ int error;
+ u8 val;
+
+ dev_dbg(dev, "Number of X lines: %d\n", pdata->x_line);
+ dev_dbg(dev, "Number of Y lines: %d\n", pdata->y_line);
+
+ switch (pdata->x_line) {
+ case 0 ... 15:
+ if (pdata->y_line <= 14)
+ mode = 0;
+ break;
+ case 16:
+ if (pdata->y_line <= 12)
+ mode = 1;
+ if (pdata->y_line == 13 || pdata->y_line == 14)
+ mode = 0;
+ break;
+ case 17:
+ if (pdata->y_line <= 11)
+ mode = 2;
+ if (pdata->y_line == 12 || pdata->y_line == 13)
+ mode = 1;
+ break;
+ case 18:
+ if (pdata->y_line <= 10)
+ mode = 3;
+ if (pdata->y_line == 11 || pdata->y_line == 12)
+ mode = 2;
+ break;
+ case 19:
+ if (pdata->y_line <= 9)
+ mode = 4;
+ if (pdata->y_line == 10 || pdata->y_line == 11)
+ mode = 3;
+ break;
+ case 20:
+ mode = 4;
+ }
+
+ if (mode < 0) {
+ dev_err(dev, "Invalid X/Y lines\n");
+ return -EINVAL;
+ }
+
+ error = qt602240_read_object(data, QT602240_SPT_CTECONFIG,
+ QT602240_CTE_MODE, &val);
+ if (error)
+ return error;
+
+ if (mode == val)
+ return 0;
+
+ /* Change the CTE configuration */
+ qt602240_write_object(data, QT602240_SPT_CTECONFIG,
+ QT602240_CTE_CTRL, 1);
+ qt602240_write_object(data, QT602240_SPT_CTECONFIG,
+ QT602240_CTE_MODE, mode);
+ qt602240_write_object(data, QT602240_SPT_CTECONFIG,
+ QT602240_CTE_CTRL, 0);
+
+ return 0;
+}
+
+static int qt602240_make_highchg(struct qt602240_data *data)
+{
+ struct device *dev = &data->client->dev;
+ int count = 10;
+ int error;
+ u8 val;
+
+ /* Read dummy message to make high CHG pin */
+ do {
+ error = qt602240_read_object(data, QT602240_GEN_MESSAGE, 0, &val);
+ if (error)
+ return error;
+ } while ((val != 0xff) && --count);
+
+ if (!count) {
+ dev_err(dev, "CHG pin isn't cleared\n");
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static void qt602240_handle_pdata(struct qt602240_data *data)
+{
+ const struct qt602240_platform_data *pdata = data->pdata;
+ u8 voltage;
+
+ /* Set touchscreen lines */
+ qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_XSIZE,
+ pdata->x_line);
+ qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_YSIZE,
+ pdata->y_line);
+
+ /* Set touchscreen orient */
+ qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_ORIENT,
+ pdata->orient);
+
+ /* Set touchscreen burst length */
+ qt602240_write_object(data, QT602240_TOUCH_MULTI,
+ QT602240_TOUCH_BLEN, pdata->blen);
+
+ /* Set touchscreen threshold */
+ qt602240_write_object(data, QT602240_TOUCH_MULTI,
+ QT602240_TOUCH_TCHTHR, pdata->threshold);
+
+ /* Set touchscreen resolution */
+ qt602240_write_object(data, QT602240_TOUCH_MULTI,
+ QT602240_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff);
+ qt602240_write_object(data, QT602240_TOUCH_MULTI,
+ QT602240_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8);
+ qt602240_write_object(data, QT602240_TOUCH_MULTI,
+ QT602240_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff);
+ qt602240_write_object(data, QT602240_TOUCH_MULTI,
+ QT602240_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8);
+
+ /* Set touchscreen voltage */
+ if (data->info.version >= QT602240_VER_21 && pdata->voltage) {
+ if (pdata->voltage < QT602240_VOLTAGE_DEFAULT) {
+ voltage = (QT602240_VOLTAGE_DEFAULT - pdata->voltage) /
+ QT602240_VOLTAGE_STEP;
+ voltage = 0xff - voltage + 1;
+ } else
+ voltage = (pdata->voltage - QT602240_VOLTAGE_DEFAULT) /
+ QT602240_VOLTAGE_STEP;
+
+ qt602240_write_object(data, QT602240_SPT_CTECONFIG,
+ QT602240_CTE_VOLTAGE, voltage);
+ }
+}
+
+static int qt602240_get_info(struct qt602240_data *data)
+{
+ struct i2c_client *client = data->client;
+ struct qt602240_info *info = &data->info;
+ int error;
+ u8 val;
+
+ error = qt602240_read_reg(client, QT602240_FAMILY_ID, &val);
+ if (error)
+ return error;
+ info->family_id = val;
+
+ error = qt602240_read_reg(client, QT602240_VARIANT_ID, &val);
+ if (error)
+ return error;
+ info->variant_id = val;
+
+ error = qt602240_read_reg(client, QT602240_VERSION, &val);
+ if (error)
+ return error;
+ info->version = val;
+
+ error = qt602240_read_reg(client, QT602240_BUILD, &val);
+ if (error)
+ return error;
+ info->build = val;
+
+ error = qt602240_read_reg(client, QT602240_OBJECT_NUM, &val);
+ if (error)
+ return error;
+ info->object_num = val;
+
+ return 0;
+}
+
+static int qt602240_get_object_table(struct qt602240_data *data)
+{
+ int error;
+ int i;
+ u16 reg;
+ u8 reportid = 0;
+ u8 buf[QT602240_OBJECT_SIZE];
+
+ for (i = 0; i < data->info.object_num; i++) {
+ struct qt602240_object *object = data->object_table + i;
+
+ reg = QT602240_OBJECT_START + QT602240_OBJECT_SIZE * i;
+ error = qt602240_read_object_table(data->client, reg, buf);
+ if (error)
+ return error;
+
+ object->type = buf[0];
+ object->start_address = (buf[2] << 8) | buf[1];
+ object->size = buf[3];
+ object->instances = buf[4];
+ object->num_report_ids = buf[5];
+
+ if (object->num_report_ids) {
+ reportid += object->num_report_ids *
+ (object->instances + 1);
+ object->max_reportid = reportid;
+ }
+ }
+
+ return 0;
+}
+
+static int qt602240_initialize(struct qt602240_data *data)
+{
+ struct i2c_client *client = data->client;
+ struct qt602240_info *info = &data->info;
+ int error;
+ u8 val;
+
+ error = qt602240_get_info(data);
+ if (error)
+ return error;
+
+ data->object_table = kcalloc(info->object_num,
+ sizeof(struct qt602240_object),
+ GFP_KERNEL);
+ if (!data->object_table) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ /* Get object table information */
+ error = qt602240_get_object_table(data);
+ if (error)
+ return error;
+
+ /* Check register init values */
+ error = qt602240_check_reg_init(data);
+ if (error)
+ return error;
+
+ /* Check X/Y matrix size */
+ error = qt602240_check_matrix_size(data);
+ if (error)
+ return error;
+
+ error = qt602240_make_highchg(data);
+ if (error)
+ return error;
+
+ qt602240_handle_pdata(data);
+
+ /* Backup to memory */
+ qt602240_write_object(data, QT602240_GEN_COMMAND,
+ QT602240_COMMAND_BACKUPNV,
+ QT602240_BACKUP_VALUE);
+ msleep(QT602240_BACKUP_TIME);
+
+ /* Soft reset */
+ qt602240_write_object(data, QT602240_GEN_COMMAND,
+ QT602240_COMMAND_RESET, 1);
+ msleep(QT602240_RESET_TIME);
+
+ /* Update matrix size at info struct */
+ error = qt602240_read_reg(client, QT602240_MATRIX_X_SIZE, &val);
+ if (error)
+ return error;
+ info->matrix_xsize = val;
+
+ error = qt602240_read_reg(client, QT602240_MATRIX_Y_SIZE, &val);
+ if (error)
+ return error;
+ info->matrix_ysize = val;
+
+ dev_info(&client->dev,
+ "Family ID: %d Variant ID: %d Version: %d Build: %d\n",
+ info->family_id, info->variant_id, info->version,
+ info->build);
+
+ dev_info(&client->dev,
+ "Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n",
+ info->matrix_xsize, info->matrix_ysize,
+ info->object_num);
+
+ return 0;
+}
+
+static ssize_t qt602240_object_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct qt602240_data *data = dev_get_drvdata(dev);
+ struct qt602240_object *object;
+ int count = 0;
+ int i, j;
+ int error;
+ u8 val;
+
+ for (i = 0; i < data->info.object_num; i++) {
+ object = data->object_table + i;
+
+ count += sprintf(buf + count,
+ "Object Table Element %d(Type %d)\n",
+ i + 1, object->type);
+
+ if (!qt602240_object_readable(object->type)) {
+ count += sprintf(buf + count, "\n");
+ continue;
+ }
+
+ for (j = 0; j < object->size + 1; j++) {
+ error = qt602240_read_object(data,
+ object->type, j, &val);
+ if (error)
+ return error;
+
+ count += sprintf(buf + count,
+ " Byte %d: 0x%x (%d)\n", j, val, val);
+ }
+
+ count += sprintf(buf + count, "\n");
+ }
+
+ return count;
+}
+
+static int qt602240_load_fw(struct device *dev, const char *fn)
+{
+ struct qt602240_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ const struct firmware *fw = NULL;
+ unsigned int frame_size;
+ unsigned int pos = 0;
+ int ret;
+
+ ret = request_firmware(&fw, fn, dev);
+ if (ret) {
+ dev_err(dev, "Unable to open firmware %s\n", fn);
+ return ret;
+ }
+
+ /* Change to the bootloader mode */
+ qt602240_write_object(data, QT602240_GEN_COMMAND,
+ QT602240_COMMAND_RESET, QT602240_BOOT_VALUE);
+ msleep(QT602240_RESET_TIME);
+
+ /* Change to slave address of bootloader */
+ if (client->addr == QT602240_APP_LOW)
+ client->addr = QT602240_BOOT_LOW;
+ else
+ client->addr = QT602240_BOOT_HIGH;
+
+ ret = qt602240_check_bootloader(client, QT602240_WAITING_BOOTLOAD_CMD);
+ if (ret)
+ goto out;
+
+ /* Unlock bootloader */
+ qt602240_unlock_bootloader(client);
+
+ while (pos < fw->size) {
+ ret = qt602240_check_bootloader(client,
+ QT602240_WAITING_FRAME_DATA);
+ if (ret)
+ goto out;
+
+ frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1));
+
+ /* We should add 2 at frame size as the the firmware data is not
+ * included the CRC bytes.
+ */
+ frame_size += 2;
+
+ /* Write one frame to device */
+ qt602240_fw_write(client, fw->data + pos, frame_size);
+
+ ret = qt602240_check_bootloader(client,
+ QT602240_FRAME_CRC_PASS);
+ if (ret)
+ goto out;
+
+ pos += frame_size;
+
+ dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
+ }
+
+out:
+ release_firmware(fw);
+
+ /* Change to slave address of application */
+ if (client->addr == QT602240_BOOT_LOW)
+ client->addr = QT602240_APP_LOW;
+ else
+ client->addr = QT602240_APP_HIGH;
+
+ return ret;
+}
+
+static ssize_t qt602240_update_fw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct qt602240_data *data = dev_get_drvdata(dev);
+ unsigned int version;
+ int error;
+
+ if (sscanf(buf, "%u", &version) != 1) {
+ dev_err(dev, "Invalid values\n");
+ return -EINVAL;
+ }
+
+ if (data->info.version < QT602240_VER_21 || version < QT602240_VER_21) {
+ dev_err(dev, "FW update supported starting with version 21\n");
+ return -EINVAL;
+ }
+
+ disable_irq(data->irq);
+
+ error = qt602240_load_fw(dev, QT602240_FW_NAME);
+ if (error) {
+ dev_err(dev, "The firmware update failed(%d)\n", error);
+ count = error;
+ } else {
+ dev_dbg(dev, "The firmware update succeeded\n");
+
+ /* Wait for reset */
+ msleep(QT602240_FWRESET_TIME);
+
+ kfree(data->object_table);
+ data->object_table = NULL;
+
+ qt602240_initialize(data);
+ }
+
+ enable_irq(data->irq);
+
+ return count;
+}
+
+static DEVICE_ATTR(object, 0444, qt602240_object_show, NULL);
+static DEVICE_ATTR(update_fw, 0664, NULL, qt602240_update_fw_store);
+
+static struct attribute *qt602240_attrs[] = {
+ &dev_attr_object.attr,
+ &dev_attr_update_fw.attr,
+ NULL
+};
+
+static const struct attribute_group qt602240_attr_group = {
+ .attrs = qt602240_attrs,
+};
+
+static void qt602240_start(struct qt602240_data *data)
+{
+ /* Touch enable */
+ qt602240_write_object(data,
+ QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0x83);
+}
+
+static void qt602240_stop(struct qt602240_data *data)
+{
+ /* Touch disable */
+ qt602240_write_object(data,
+ QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0);
+}
+
+static int qt602240_input_open(struct input_dev *dev)
+{
+ struct qt602240_data *data = input_get_drvdata(dev);
+
+ qt602240_start(data);
+
+ return 0;
+}
+
+static void qt602240_input_close(struct input_dev *dev)
+{
+ struct qt602240_data *data = input_get_drvdata(dev);
+
+ qt602240_stop(data);
+}
+
+static int __devinit qt602240_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct qt602240_data *data;
+ struct input_dev *input_dev;
+ int error;
+
+ if (!client->dev.platform_data)
+ return -EINVAL;
+
+ data = kzalloc(sizeof(struct qt602240_data), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!data || !input_dev) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ input_dev->name = "AT42QT602240/ATMXT224 Touchscreen";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+ input_dev->open = qt602240_input_open;
+ input_dev->close = qt602240_input_close;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ /* For single touch */
+ input_set_abs_params(input_dev, ABS_X,
+ 0, QT602240_MAX_XC, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ 0, QT602240_MAX_YC, 0, 0);
+
+ /* For multi touch */
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+ 0, QT602240_MAX_AREA, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+ 0, QT602240_MAX_XC, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+ 0, QT602240_MAX_YC, 0, 0);
+
+ input_set_drvdata(input_dev, data);
+
+ data->client = client;
+ data->input_dev = input_dev;
+ data->pdata = client->dev.platform_data;
+ data->irq = client->irq;
+
+ i2c_set_clientdata(client, data);
+
+ error = qt602240_initialize(data);
+ if (error)
+ goto err_free_object;
+
+ error = request_threaded_irq(client->irq, NULL, qt602240_interrupt,
+ IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
+ if (error) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_object;
+ }
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto err_free_irq;
+
+ error = sysfs_create_group(&client->dev.kobj, &qt602240_attr_group);
+ if (error)
+ goto err_unregister_device;
+
+ return 0;
+
+err_unregister_device:
+ input_unregister_device(input_dev);
+ input_dev = NULL;
+err_free_irq:
+ free_irq(client->irq, data);
+err_free_object:
+ kfree(data->object_table);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(data);
+ return error;
+}
+
+static int __devexit qt602240_remove(struct i2c_client *client)
+{
+ struct qt602240_data *data = i2c_get_clientdata(client);
+
+ sysfs_remove_group(&client->dev.kobj, &qt602240_attr_group);
+ free_irq(data->irq, data);
+ input_unregister_device(data->input_dev);
+ kfree(data->object_table);
+ kfree(data);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int qt602240_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct qt602240_data *data = i2c_get_clientdata(client);
+ struct input_dev *input_dev = data->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ qt602240_stop(data);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static int qt602240_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct qt602240_data *data = i2c_get_clientdata(client);
+ struct input_dev *input_dev = data->input_dev;
+
+ /* Soft reset */
+ qt602240_write_object(data, QT602240_GEN_COMMAND,
+ QT602240_COMMAND_RESET, 1);
+
+ msleep(QT602240_RESET_TIME);
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ qt602240_start(data);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops qt602240_pm_ops = {
+ .suspend = qt602240_suspend,
+ .resume = qt602240_resume,
+};
+#endif
+
+static const struct i2c_device_id qt602240_id[] = {
+ { "qt602240_ts", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, qt602240_id);
+
+static struct i2c_driver qt602240_driver = {
+ .driver = {
+ .name = "qt602240_ts",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &qt602240_pm_ops,
+#endif
+ },
+ .probe = qt602240_probe,
+ .remove = __devexit_p(qt602240_remove),
+ .id_table = qt602240_id,
+};
+
+static int __init qt602240_init(void)
+{
+ return i2c_add_driver(&qt602240_driver);
+}
+
+static void __exit qt602240_exit(void)
+{
+ i2c_del_driver(&qt602240_driver);
+}
+
+module_init(qt602240_init);
+module_exit(qt602240_exit);
+
+/* Module information */
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("AT42QT602240/ATMXT224 Touchscreen driver");
+MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * AT42QT602240/ATMXT224 Touchscreen driver
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * 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; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/firmware.h>
-#include <linux/i2c.h>
-#include <linux/i2c/qt602240_ts.h>
-#include <linux/input.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-/* Version */
-#define QT602240_VER_20 20
-#define QT602240_VER_21 21
-#define QT602240_VER_22 22
-
-/* Slave addresses */
-#define QT602240_APP_LOW 0x4a
-#define QT602240_APP_HIGH 0x4b
-#define QT602240_BOOT_LOW 0x24
-#define QT602240_BOOT_HIGH 0x25
-
-/* Firmware */
-#define QT602240_FW_NAME "qt602240.fw"
-
-/* Registers */
-#define QT602240_FAMILY_ID 0x00
-#define QT602240_VARIANT_ID 0x01
-#define QT602240_VERSION 0x02
-#define QT602240_BUILD 0x03
-#define QT602240_MATRIX_X_SIZE 0x04
-#define QT602240_MATRIX_Y_SIZE 0x05
-#define QT602240_OBJECT_NUM 0x06
-#define QT602240_OBJECT_START 0x07
-
-#define QT602240_OBJECT_SIZE 6
-
-/* Object types */
-#define QT602240_DEBUG_DIAGNOSTIC 37
-#define QT602240_GEN_MESSAGE 5
-#define QT602240_GEN_COMMAND 6
-#define QT602240_GEN_POWER 7
-#define QT602240_GEN_ACQUIRE 8
-#define QT602240_TOUCH_MULTI 9
-#define QT602240_TOUCH_KEYARRAY 15
-#define QT602240_TOUCH_PROXIMITY 23
-#define QT602240_PROCI_GRIPFACE 20
-#define QT602240_PROCG_NOISE 22
-#define QT602240_PROCI_ONETOUCH 24
-#define QT602240_PROCI_TWOTOUCH 27
-#define QT602240_SPT_COMMSCONFIG 18 /* firmware ver 21 over */
-#define QT602240_SPT_GPIOPWM 19
-#define QT602240_SPT_SELFTEST 25
-#define QT602240_SPT_CTECONFIG 28
-#define QT602240_SPT_USERDATA 38 /* firmware ver 21 over */
-
-/* QT602240_GEN_COMMAND field */
-#define QT602240_COMMAND_RESET 0
-#define QT602240_COMMAND_BACKUPNV 1
-#define QT602240_COMMAND_CALIBRATE 2
-#define QT602240_COMMAND_REPORTALL 3
-#define QT602240_COMMAND_DIAGNOSTIC 5
-
-/* QT602240_GEN_POWER field */
-#define QT602240_POWER_IDLEACQINT 0
-#define QT602240_POWER_ACTVACQINT 1
-#define QT602240_POWER_ACTV2IDLETO 2
-
-/* QT602240_GEN_ACQUIRE field */
-#define QT602240_ACQUIRE_CHRGTIME 0
-#define QT602240_ACQUIRE_TCHDRIFT 2
-#define QT602240_ACQUIRE_DRIFTST 3
-#define QT602240_ACQUIRE_TCHAUTOCAL 4
-#define QT602240_ACQUIRE_SYNC 5
-#define QT602240_ACQUIRE_ATCHCALST 6
-#define QT602240_ACQUIRE_ATCHCALSTHR 7
-
-/* QT602240_TOUCH_MULTI field */
-#define QT602240_TOUCH_CTRL 0
-#define QT602240_TOUCH_XORIGIN 1
-#define QT602240_TOUCH_YORIGIN 2
-#define QT602240_TOUCH_XSIZE 3
-#define QT602240_TOUCH_YSIZE 4
-#define QT602240_TOUCH_BLEN 6
-#define QT602240_TOUCH_TCHTHR 7
-#define QT602240_TOUCH_TCHDI 8
-#define QT602240_TOUCH_ORIENT 9
-#define QT602240_TOUCH_MOVHYSTI 11
-#define QT602240_TOUCH_MOVHYSTN 12
-#define QT602240_TOUCH_NUMTOUCH 14
-#define QT602240_TOUCH_MRGHYST 15
-#define QT602240_TOUCH_MRGTHR 16
-#define QT602240_TOUCH_AMPHYST 17
-#define QT602240_TOUCH_XRANGE_LSB 18
-#define QT602240_TOUCH_XRANGE_MSB 19
-#define QT602240_TOUCH_YRANGE_LSB 20
-#define QT602240_TOUCH_YRANGE_MSB 21
-#define QT602240_TOUCH_XLOCLIP 22
-#define QT602240_TOUCH_XHICLIP 23
-#define QT602240_TOUCH_YLOCLIP 24
-#define QT602240_TOUCH_YHICLIP 25
-#define QT602240_TOUCH_XEDGECTRL 26
-#define QT602240_TOUCH_XEDGEDIST 27
-#define QT602240_TOUCH_YEDGECTRL 28
-#define QT602240_TOUCH_YEDGEDIST 29
-#define QT602240_TOUCH_JUMPLIMIT 30 /* firmware ver 22 over */
-
-/* QT602240_PROCI_GRIPFACE field */
-#define QT602240_GRIPFACE_CTRL 0
-#define QT602240_GRIPFACE_XLOGRIP 1
-#define QT602240_GRIPFACE_XHIGRIP 2
-#define QT602240_GRIPFACE_YLOGRIP 3
-#define QT602240_GRIPFACE_YHIGRIP 4
-#define QT602240_GRIPFACE_MAXTCHS 5
-#define QT602240_GRIPFACE_SZTHR1 7
-#define QT602240_GRIPFACE_SZTHR2 8
-#define QT602240_GRIPFACE_SHPTHR1 9
-#define QT602240_GRIPFACE_SHPTHR2 10
-#define QT602240_GRIPFACE_SUPEXTTO 11
-
-/* QT602240_PROCI_NOISE field */
-#define QT602240_NOISE_CTRL 0
-#define QT602240_NOISE_OUTFLEN 1
-#define QT602240_NOISE_GCAFUL_LSB 3
-#define QT602240_NOISE_GCAFUL_MSB 4
-#define QT602240_NOISE_GCAFLL_LSB 5
-#define QT602240_NOISE_GCAFLL_MSB 6
-#define QT602240_NOISE_ACTVGCAFVALID 7
-#define QT602240_NOISE_NOISETHR 8
-#define QT602240_NOISE_FREQHOPSCALE 10
-#define QT602240_NOISE_FREQ0 11
-#define QT602240_NOISE_FREQ1 12
-#define QT602240_NOISE_FREQ2 13
-#define QT602240_NOISE_FREQ3 14
-#define QT602240_NOISE_FREQ4 15
-#define QT602240_NOISE_IDLEGCAFVALID 16
-
-/* QT602240_SPT_COMMSCONFIG */
-#define QT602240_COMMS_CTRL 0
-#define QT602240_COMMS_CMD 1
-
-/* QT602240_SPT_CTECONFIG field */
-#define QT602240_CTE_CTRL 0
-#define QT602240_CTE_CMD 1
-#define QT602240_CTE_MODE 2
-#define QT602240_CTE_IDLEGCAFDEPTH 3
-#define QT602240_CTE_ACTVGCAFDEPTH 4
-#define QT602240_CTE_VOLTAGE 5 /* firmware ver 21 over */
-
-#define QT602240_VOLTAGE_DEFAULT 2700000
-#define QT602240_VOLTAGE_STEP 10000
-
-/* Define for QT602240_GEN_COMMAND */
-#define QT602240_BOOT_VALUE 0xa5
-#define QT602240_BACKUP_VALUE 0x55
-#define QT602240_BACKUP_TIME 25 /* msec */
-#define QT602240_RESET_TIME 65 /* msec */
-
-#define QT602240_FWRESET_TIME 175 /* msec */
-
-/* Command to unlock bootloader */
-#define QT602240_UNLOCK_CMD_MSB 0xaa
-#define QT602240_UNLOCK_CMD_LSB 0xdc
-
-/* Bootloader mode status */
-#define QT602240_WAITING_BOOTLOAD_CMD 0xc0 /* valid 7 6 bit only */
-#define QT602240_WAITING_FRAME_DATA 0x80 /* valid 7 6 bit only */
-#define QT602240_FRAME_CRC_CHECK 0x02
-#define QT602240_FRAME_CRC_FAIL 0x03
-#define QT602240_FRAME_CRC_PASS 0x04
-#define QT602240_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */
-#define QT602240_BOOT_STATUS_MASK 0x3f
-
-/* Touch status */
-#define QT602240_SUPPRESS (1 << 1)
-#define QT602240_AMP (1 << 2)
-#define QT602240_VECTOR (1 << 3)
-#define QT602240_MOVE (1 << 4)
-#define QT602240_RELEASE (1 << 5)
-#define QT602240_PRESS (1 << 6)
-#define QT602240_DETECT (1 << 7)
-
-/* Touchscreen absolute values */
-#define QT602240_MAX_XC 0x3ff
-#define QT602240_MAX_YC 0x3ff
-#define QT602240_MAX_AREA 0xff
-
-#define QT602240_MAX_FINGER 10
-
-/* Initial register values recommended from chip vendor */
-static const u8 init_vals_ver_20[] = {
- /* QT602240_GEN_COMMAND(6) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_GEN_POWER(7) */
- 0x20, 0xff, 0x32,
- /* QT602240_GEN_ACQUIRE(8) */
- 0x08, 0x05, 0x05, 0x00, 0x00, 0x00, 0x05, 0x14,
- /* QT602240_TOUCH_MULTI(9) */
- 0x00, 0x00, 0x00, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x02, 0x00,
- 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x64,
- /* QT602240_TOUCH_KEYARRAY(15) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* QT602240_SPT_GPIOPWM(19) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00,
- /* QT602240_PROCI_GRIPFACE(20) */
- 0x00, 0x64, 0x64, 0x64, 0x64, 0x00, 0x00, 0x1e, 0x14, 0x04,
- 0x1e, 0x00,
- /* QT602240_PROCG_NOISE(22) */
- 0x05, 0x00, 0x00, 0x19, 0x00, 0xe7, 0xff, 0x04, 0x32, 0x00,
- 0x01, 0x0a, 0x0f, 0x14, 0x00, 0x00, 0xe8,
- /* QT602240_TOUCH_PROXIMITY(23) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00,
- /* QT602240_PROCI_ONETOUCH(24) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_SPT_SELFTEST(25) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- /* QT602240_PROCI_TWOTOUCH(27) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_SPT_CTECONFIG(28) */
- 0x00, 0x00, 0x00, 0x04, 0x08,
-};
-
-static const u8 init_vals_ver_21[] = {
- /* QT602240_GEN_COMMAND(6) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_GEN_POWER(7) */
- 0x20, 0xff, 0x32,
- /* QT602240_GEN_ACQUIRE(8) */
- 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
- /* QT602240_TOUCH_MULTI(9) */
- 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
- 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_TOUCH_KEYARRAY(15) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* QT602240_SPT_GPIOPWM(19) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_PROCI_GRIPFACE(20) */
- 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
- 0x0f, 0x0a,
- /* QT602240_PROCG_NOISE(22) */
- 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
- 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
- /* QT602240_TOUCH_PROXIMITY(23) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00,
- /* QT602240_PROCI_ONETOUCH(24) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_SPT_SELFTEST(25) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- /* QT602240_PROCI_TWOTOUCH(27) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_SPT_CTECONFIG(28) */
- 0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
-static const u8 init_vals_ver_22[] = {
- /* QT602240_GEN_COMMAND(6) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_GEN_POWER(7) */
- 0x20, 0xff, 0x32,
- /* QT602240_GEN_ACQUIRE(8) */
- 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
- /* QT602240_TOUCH_MULTI(9) */
- 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
- 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* QT602240_TOUCH_KEYARRAY(15) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* QT602240_SPT_GPIOPWM(19) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_PROCI_GRIPFACE(20) */
- 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
- 0x0f, 0x0a,
- /* QT602240_PROCG_NOISE(22) */
- 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
- 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
- /* QT602240_TOUCH_PROXIMITY(23) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_PROCI_ONETOUCH(24) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_SPT_SELFTEST(25) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- /* QT602240_PROCI_TWOTOUCH(27) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* QT602240_SPT_CTECONFIG(28) */
- 0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
-struct qt602240_info {
- u8 family_id;
- u8 variant_id;
- u8 version;
- u8 build;
- u8 matrix_xsize;
- u8 matrix_ysize;
- u8 object_num;
-};
-
-struct qt602240_object {
- u8 type;
- u16 start_address;
- u8 size;
- u8 instances;
- u8 num_report_ids;
-
- /* to map object and message */
- u8 max_reportid;
-};
-
-struct qt602240_message {
- u8 reportid;
- u8 message[7];
- u8 checksum;
-};
-
-struct qt602240_finger {
- int status;
- int x;
- int y;
- int area;
-};
-
-/* Each client has this additional data */
-struct qt602240_data {
- struct i2c_client *client;
- struct input_dev *input_dev;
- const struct qt602240_platform_data *pdata;
- struct qt602240_object *object_table;
- struct qt602240_info info;
- struct qt602240_finger finger[QT602240_MAX_FINGER];
- unsigned int irq;
-};
-
-static bool qt602240_object_readable(unsigned int type)
-{
- switch (type) {
- case QT602240_GEN_MESSAGE:
- case QT602240_GEN_COMMAND:
- case QT602240_GEN_POWER:
- case QT602240_GEN_ACQUIRE:
- case QT602240_TOUCH_MULTI:
- case QT602240_TOUCH_KEYARRAY:
- case QT602240_TOUCH_PROXIMITY:
- case QT602240_PROCI_GRIPFACE:
- case QT602240_PROCG_NOISE:
- case QT602240_PROCI_ONETOUCH:
- case QT602240_PROCI_TWOTOUCH:
- case QT602240_SPT_COMMSCONFIG:
- case QT602240_SPT_GPIOPWM:
- case QT602240_SPT_SELFTEST:
- case QT602240_SPT_CTECONFIG:
- case QT602240_SPT_USERDATA:
- return true;
- default:
- return false;
- }
-}
-
-static bool qt602240_object_writable(unsigned int type)
-{
- switch (type) {
- case QT602240_GEN_COMMAND:
- case QT602240_GEN_POWER:
- case QT602240_GEN_ACQUIRE:
- case QT602240_TOUCH_MULTI:
- case QT602240_TOUCH_KEYARRAY:
- case QT602240_TOUCH_PROXIMITY:
- case QT602240_PROCI_GRIPFACE:
- case QT602240_PROCG_NOISE:
- case QT602240_PROCI_ONETOUCH:
- case QT602240_PROCI_TWOTOUCH:
- case QT602240_SPT_GPIOPWM:
- case QT602240_SPT_SELFTEST:
- case QT602240_SPT_CTECONFIG:
- return true;
- default:
- return false;
- }
-}
-
-static void qt602240_dump_message(struct device *dev,
- struct qt602240_message *message)
-{
- dev_dbg(dev, "reportid:\t0x%x\n", message->reportid);
- dev_dbg(dev, "message1:\t0x%x\n", message->message[0]);
- dev_dbg(dev, "message2:\t0x%x\n", message->message[1]);
- dev_dbg(dev, "message3:\t0x%x\n", message->message[2]);
- dev_dbg(dev, "message4:\t0x%x\n", message->message[3]);
- dev_dbg(dev, "message5:\t0x%x\n", message->message[4]);
- dev_dbg(dev, "message6:\t0x%x\n", message->message[5]);
- dev_dbg(dev, "message7:\t0x%x\n", message->message[6]);
- dev_dbg(dev, "checksum:\t0x%x\n", message->checksum);
-}
-
-static int qt602240_check_bootloader(struct i2c_client *client,
- unsigned int state)
-{
- u8 val;
-
-recheck:
- if (i2c_master_recv(client, &val, 1) != 1) {
- dev_err(&client->dev, "%s: i2c recv failed\n", __func__);
- return -EIO;
- }
-
- switch (state) {
- case QT602240_WAITING_BOOTLOAD_CMD:
- case QT602240_WAITING_FRAME_DATA:
- val &= ~QT602240_BOOT_STATUS_MASK;
- break;
- case QT602240_FRAME_CRC_PASS:
- if (val == QT602240_FRAME_CRC_CHECK)
- goto recheck;
- break;
- default:
- return -EINVAL;
- }
-
- if (val != state) {
- dev_err(&client->dev, "Unvalid bootloader mode state\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int qt602240_unlock_bootloader(struct i2c_client *client)
-{
- u8 buf[2];
-
- buf[0] = QT602240_UNLOCK_CMD_LSB;
- buf[1] = QT602240_UNLOCK_CMD_MSB;
-
- if (i2c_master_send(client, buf, 2) != 2) {
- dev_err(&client->dev, "%s: i2c send failed\n", __func__);
- return -EIO;
- }
-
- return 0;
-}
-
-static int qt602240_fw_write(struct i2c_client *client,
- const u8 *data, unsigned int frame_size)
-{
- if (i2c_master_send(client, data, frame_size) != frame_size) {
- dev_err(&client->dev, "%s: i2c send failed\n", __func__);
- return -EIO;
- }
-
- return 0;
-}
-
-static int __qt602240_read_reg(struct i2c_client *client,
- u16 reg, u16 len, void *val)
-{
- struct i2c_msg xfer[2];
- u8 buf[2];
-
- buf[0] = reg & 0xff;
- buf[1] = (reg >> 8) & 0xff;
-
- /* Write register */
- xfer[0].addr = client->addr;
- xfer[0].flags = 0;
- xfer[0].len = 2;
- xfer[0].buf = buf;
-
- /* Read data */
- xfer[1].addr = client->addr;
- xfer[1].flags = I2C_M_RD;
- xfer[1].len = len;
- xfer[1].buf = val;
-
- if (i2c_transfer(client->adapter, xfer, 2) != 2) {
- dev_err(&client->dev, "%s: i2c transfer failed\n", __func__);
- return -EIO;
- }
-
- return 0;
-}
-
-static int qt602240_read_reg(struct i2c_client *client, u16 reg, u8 *val)
-{
- return __qt602240_read_reg(client, reg, 1, val);
-}
-
-static int qt602240_write_reg(struct i2c_client *client, u16 reg, u8 val)
-{
- u8 buf[3];
-
- buf[0] = reg & 0xff;
- buf[1] = (reg >> 8) & 0xff;
- buf[2] = val;
-
- if (i2c_master_send(client, buf, 3) != 3) {
- dev_err(&client->dev, "%s: i2c send failed\n", __func__);
- return -EIO;
- }
-
- return 0;
-}
-
-static int qt602240_read_object_table(struct i2c_client *client,
- u16 reg, u8 *object_buf)
-{
- return __qt602240_read_reg(client, reg, QT602240_OBJECT_SIZE,
- object_buf);
-}
-
-static struct qt602240_object *
-qt602240_get_object(struct qt602240_data *data, u8 type)
-{
- struct qt602240_object *object;
- int i;
-
- for (i = 0; i < data->info.object_num; i++) {
- object = data->object_table + i;
- if (object->type == type)
- return object;
- }
-
- dev_err(&data->client->dev, "Invalid object type\n");
- return NULL;
-}
-
-static int qt602240_read_message(struct qt602240_data *data,
- struct qt602240_message *message)
-{
- struct qt602240_object *object;
- u16 reg;
-
- object = qt602240_get_object(data, QT602240_GEN_MESSAGE);
- if (!object)
- return -EINVAL;
-
- reg = object->start_address;
- return __qt602240_read_reg(data->client, reg,
- sizeof(struct qt602240_message), message);
-}
-
-static int qt602240_read_object(struct qt602240_data *data,
- u8 type, u8 offset, u8 *val)
-{
- struct qt602240_object *object;
- u16 reg;
-
- object = qt602240_get_object(data, type);
- if (!object)
- return -EINVAL;
-
- reg = object->start_address;
- return __qt602240_read_reg(data->client, reg + offset, 1, val);
-}
-
-static int qt602240_write_object(struct qt602240_data *data,
- u8 type, u8 offset, u8 val)
-{
- struct qt602240_object *object;
- u16 reg;
-
- object = qt602240_get_object(data, type);
- if (!object)
- return -EINVAL;
-
- reg = object->start_address;
- return qt602240_write_reg(data->client, reg + offset, val);
-}
-
-static void qt602240_input_report(struct qt602240_data *data, int single_id)
-{
- struct qt602240_finger *finger = data->finger;
- struct input_dev *input_dev = data->input_dev;
- int status = finger[single_id].status;
- int finger_num = 0;
- int id;
-
- for (id = 0; id < QT602240_MAX_FINGER; id++) {
- if (!finger[id].status)
- continue;
-
- input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
- finger[id].status != QT602240_RELEASE ?
- finger[id].area : 0);
- input_report_abs(input_dev, ABS_MT_POSITION_X,
- finger[id].x);
- input_report_abs(input_dev, ABS_MT_POSITION_Y,
- finger[id].y);
- input_mt_sync(input_dev);
-
- if (finger[id].status == QT602240_RELEASE)
- finger[id].status = 0;
- else
- finger_num++;
- }
-
- input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
-
- if (status != QT602240_RELEASE) {
- input_report_abs(input_dev, ABS_X, finger[single_id].x);
- input_report_abs(input_dev, ABS_Y, finger[single_id].y);
- }
-
- input_sync(input_dev);
-}
-
-static void qt602240_input_touchevent(struct qt602240_data *data,
- struct qt602240_message *message, int id)
-{
- struct qt602240_finger *finger = data->finger;
- struct device *dev = &data->client->dev;
- u8 status = message->message[0];
- int x;
- int y;
- int area;
-
- /* Check the touch is present on the screen */
- if (!(status & QT602240_DETECT)) {
- if (status & QT602240_RELEASE) {
- dev_dbg(dev, "[%d] released\n", id);
-
- finger[id].status = QT602240_RELEASE;
- qt602240_input_report(data, id);
- }
- return;
- }
-
- /* Check only AMP detection */
- if (!(status & (QT602240_PRESS | QT602240_MOVE)))
- return;
-
- x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6);
- y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2);
- area = message->message[4];
-
- dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
- status & QT602240_MOVE ? "moved" : "pressed",
- x, y, area);
-
- finger[id].status = status & QT602240_MOVE ?
- QT602240_MOVE : QT602240_PRESS;
- finger[id].x = x;
- finger[id].y = y;
- finger[id].area = area;
-
- qt602240_input_report(data, id);
-}
-
-static irqreturn_t qt602240_interrupt(int irq, void *dev_id)
-{
- struct qt602240_data *data = dev_id;
- struct qt602240_message message;
- struct qt602240_object *object;
- struct device *dev = &data->client->dev;
- int id;
- u8 reportid;
- u8 max_reportid;
- u8 min_reportid;
-
- do {
- if (qt602240_read_message(data, &message)) {
- dev_err(dev, "Failed to read message\n");
- goto end;
- }
-
- reportid = message.reportid;
-
- /* whether reportid is thing of QT602240_TOUCH_MULTI */
- object = qt602240_get_object(data, QT602240_TOUCH_MULTI);
- if (!object)
- goto end;
-
- max_reportid = object->max_reportid;
- min_reportid = max_reportid - object->num_report_ids + 1;
- id = reportid - min_reportid;
-
- if (reportid >= min_reportid && reportid <= max_reportid)
- qt602240_input_touchevent(data, &message, id);
- else
- qt602240_dump_message(dev, &message);
- } while (reportid != 0xff);
-
-end:
- return IRQ_HANDLED;
-}
-
-static int qt602240_check_reg_init(struct qt602240_data *data)
-{
- struct qt602240_object *object;
- struct device *dev = &data->client->dev;
- int index = 0;
- int i, j;
- u8 version = data->info.version;
- u8 *init_vals;
-
- switch (version) {
- case QT602240_VER_20:
- init_vals = (u8 *)init_vals_ver_20;
- break;
- case QT602240_VER_21:
- init_vals = (u8 *)init_vals_ver_21;
- break;
- case QT602240_VER_22:
- init_vals = (u8 *)init_vals_ver_22;
- break;
- default:
- dev_err(dev, "Firmware version %d doesn't support\n", version);
- return -EINVAL;
- }
-
- for (i = 0; i < data->info.object_num; i++) {
- object = data->object_table + i;
-
- if (!qt602240_object_writable(object->type))
- continue;
-
- for (j = 0; j < object->size + 1; j++)
- qt602240_write_object(data, object->type, j,
- init_vals[index + j]);
-
- index += object->size + 1;
- }
-
- return 0;
-}
-
-static int qt602240_check_matrix_size(struct qt602240_data *data)
-{
- const struct qt602240_platform_data *pdata = data->pdata;
- struct device *dev = &data->client->dev;
- int mode = -1;
- int error;
- u8 val;
-
- dev_dbg(dev, "Number of X lines: %d\n", pdata->x_line);
- dev_dbg(dev, "Number of Y lines: %d\n", pdata->y_line);
-
- switch (pdata->x_line) {
- case 0 ... 15:
- if (pdata->y_line <= 14)
- mode = 0;
- break;
- case 16:
- if (pdata->y_line <= 12)
- mode = 1;
- if (pdata->y_line == 13 || pdata->y_line == 14)
- mode = 0;
- break;
- case 17:
- if (pdata->y_line <= 11)
- mode = 2;
- if (pdata->y_line == 12 || pdata->y_line == 13)
- mode = 1;
- break;
- case 18:
- if (pdata->y_line <= 10)
- mode = 3;
- if (pdata->y_line == 11 || pdata->y_line == 12)
- mode = 2;
- break;
- case 19:
- if (pdata->y_line <= 9)
- mode = 4;
- if (pdata->y_line == 10 || pdata->y_line == 11)
- mode = 3;
- break;
- case 20:
- mode = 4;
- }
-
- if (mode < 0) {
- dev_err(dev, "Invalid X/Y lines\n");
- return -EINVAL;
- }
-
- error = qt602240_read_object(data, QT602240_SPT_CTECONFIG,
- QT602240_CTE_MODE, &val);
- if (error)
- return error;
-
- if (mode == val)
- return 0;
-
- /* Change the CTE configuration */
- qt602240_write_object(data, QT602240_SPT_CTECONFIG,
- QT602240_CTE_CTRL, 1);
- qt602240_write_object(data, QT602240_SPT_CTECONFIG,
- QT602240_CTE_MODE, mode);
- qt602240_write_object(data, QT602240_SPT_CTECONFIG,
- QT602240_CTE_CTRL, 0);
-
- return 0;
-}
-
-static int qt602240_make_highchg(struct qt602240_data *data)
-{
- struct device *dev = &data->client->dev;
- int count = 10;
- int error;
- u8 val;
-
- /* Read dummy message to make high CHG pin */
- do {
- error = qt602240_read_object(data, QT602240_GEN_MESSAGE, 0, &val);
- if (error)
- return error;
- } while ((val != 0xff) && --count);
-
- if (!count) {
- dev_err(dev, "CHG pin isn't cleared\n");
- return -EBUSY;
- }
-
- return 0;
-}
-
-static void qt602240_handle_pdata(struct qt602240_data *data)
-{
- const struct qt602240_platform_data *pdata = data->pdata;
- u8 voltage;
-
- /* Set touchscreen lines */
- qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_XSIZE,
- pdata->x_line);
- qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_YSIZE,
- pdata->y_line);
-
- /* Set touchscreen orient */
- qt602240_write_object(data, QT602240_TOUCH_MULTI, QT602240_TOUCH_ORIENT,
- pdata->orient);
-
- /* Set touchscreen burst length */
- qt602240_write_object(data, QT602240_TOUCH_MULTI,
- QT602240_TOUCH_BLEN, pdata->blen);
-
- /* Set touchscreen threshold */
- qt602240_write_object(data, QT602240_TOUCH_MULTI,
- QT602240_TOUCH_TCHTHR, pdata->threshold);
-
- /* Set touchscreen resolution */
- qt602240_write_object(data, QT602240_TOUCH_MULTI,
- QT602240_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff);
- qt602240_write_object(data, QT602240_TOUCH_MULTI,
- QT602240_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8);
- qt602240_write_object(data, QT602240_TOUCH_MULTI,
- QT602240_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff);
- qt602240_write_object(data, QT602240_TOUCH_MULTI,
- QT602240_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8);
-
- /* Set touchscreen voltage */
- if (data->info.version >= QT602240_VER_21 && pdata->voltage) {
- if (pdata->voltage < QT602240_VOLTAGE_DEFAULT) {
- voltage = (QT602240_VOLTAGE_DEFAULT - pdata->voltage) /
- QT602240_VOLTAGE_STEP;
- voltage = 0xff - voltage + 1;
- } else
- voltage = (pdata->voltage - QT602240_VOLTAGE_DEFAULT) /
- QT602240_VOLTAGE_STEP;
-
- qt602240_write_object(data, QT602240_SPT_CTECONFIG,
- QT602240_CTE_VOLTAGE, voltage);
- }
-}
-
-static int qt602240_get_info(struct qt602240_data *data)
-{
- struct i2c_client *client = data->client;
- struct qt602240_info *info = &data->info;
- int error;
- u8 val;
-
- error = qt602240_read_reg(client, QT602240_FAMILY_ID, &val);
- if (error)
- return error;
- info->family_id = val;
-
- error = qt602240_read_reg(client, QT602240_VARIANT_ID, &val);
- if (error)
- return error;
- info->variant_id = val;
-
- error = qt602240_read_reg(client, QT602240_VERSION, &val);
- if (error)
- return error;
- info->version = val;
-
- error = qt602240_read_reg(client, QT602240_BUILD, &val);
- if (error)
- return error;
- info->build = val;
-
- error = qt602240_read_reg(client, QT602240_OBJECT_NUM, &val);
- if (error)
- return error;
- info->object_num = val;
-
- return 0;
-}
-
-static int qt602240_get_object_table(struct qt602240_data *data)
-{
- int error;
- int i;
- u16 reg;
- u8 reportid = 0;
- u8 buf[QT602240_OBJECT_SIZE];
-
- for (i = 0; i < data->info.object_num; i++) {
- struct qt602240_object *object = data->object_table + i;
-
- reg = QT602240_OBJECT_START + QT602240_OBJECT_SIZE * i;
- error = qt602240_read_object_table(data->client, reg, buf);
- if (error)
- return error;
-
- object->type = buf[0];
- object->start_address = (buf[2] << 8) | buf[1];
- object->size = buf[3];
- object->instances = buf[4];
- object->num_report_ids = buf[5];
-
- if (object->num_report_ids) {
- reportid += object->num_report_ids *
- (object->instances + 1);
- object->max_reportid = reportid;
- }
- }
-
- return 0;
-}
-
-static int qt602240_initialize(struct qt602240_data *data)
-{
- struct i2c_client *client = data->client;
- struct qt602240_info *info = &data->info;
- int error;
- u8 val;
-
- error = qt602240_get_info(data);
- if (error)
- return error;
-
- data->object_table = kcalloc(info->object_num,
- sizeof(struct qt602240_object),
- GFP_KERNEL);
- if (!data->object_table) {
- dev_err(&client->dev, "Failed to allocate memory\n");
- return -ENOMEM;
- }
-
- /* Get object table information */
- error = qt602240_get_object_table(data);
- if (error)
- return error;
-
- /* Check register init values */
- error = qt602240_check_reg_init(data);
- if (error)
- return error;
-
- /* Check X/Y matrix size */
- error = qt602240_check_matrix_size(data);
- if (error)
- return error;
-
- error = qt602240_make_highchg(data);
- if (error)
- return error;
-
- qt602240_handle_pdata(data);
-
- /* Backup to memory */
- qt602240_write_object(data, QT602240_GEN_COMMAND,
- QT602240_COMMAND_BACKUPNV,
- QT602240_BACKUP_VALUE);
- msleep(QT602240_BACKUP_TIME);
-
- /* Soft reset */
- qt602240_write_object(data, QT602240_GEN_COMMAND,
- QT602240_COMMAND_RESET, 1);
- msleep(QT602240_RESET_TIME);
-
- /* Update matrix size at info struct */
- error = qt602240_read_reg(client, QT602240_MATRIX_X_SIZE, &val);
- if (error)
- return error;
- info->matrix_xsize = val;
-
- error = qt602240_read_reg(client, QT602240_MATRIX_Y_SIZE, &val);
- if (error)
- return error;
- info->matrix_ysize = val;
-
- dev_info(&client->dev,
- "Family ID: %d Variant ID: %d Version: %d Build: %d\n",
- info->family_id, info->variant_id, info->version,
- info->build);
-
- dev_info(&client->dev,
- "Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n",
- info->matrix_xsize, info->matrix_ysize,
- info->object_num);
-
- return 0;
-}
-
-static ssize_t qt602240_object_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct qt602240_data *data = dev_get_drvdata(dev);
- struct qt602240_object *object;
- int count = 0;
- int i, j;
- int error;
- u8 val;
-
- for (i = 0; i < data->info.object_num; i++) {
- object = data->object_table + i;
-
- count += sprintf(buf + count,
- "Object Table Element %d(Type %d)\n",
- i + 1, object->type);
-
- if (!qt602240_object_readable(object->type)) {
- count += sprintf(buf + count, "\n");
- continue;
- }
-
- for (j = 0; j < object->size + 1; j++) {
- error = qt602240_read_object(data,
- object->type, j, &val);
- if (error)
- return error;
-
- count += sprintf(buf + count,
- " Byte %d: 0x%x (%d)\n", j, val, val);
- }
-
- count += sprintf(buf + count, "\n");
- }
-
- return count;
-}
-
-static int qt602240_load_fw(struct device *dev, const char *fn)
-{
- struct qt602240_data *data = dev_get_drvdata(dev);
- struct i2c_client *client = data->client;
- const struct firmware *fw = NULL;
- unsigned int frame_size;
- unsigned int pos = 0;
- int ret;
-
- ret = request_firmware(&fw, fn, dev);
- if (ret) {
- dev_err(dev, "Unable to open firmware %s\n", fn);
- return ret;
- }
-
- /* Change to the bootloader mode */
- qt602240_write_object(data, QT602240_GEN_COMMAND,
- QT602240_COMMAND_RESET, QT602240_BOOT_VALUE);
- msleep(QT602240_RESET_TIME);
-
- /* Change to slave address of bootloader */
- if (client->addr == QT602240_APP_LOW)
- client->addr = QT602240_BOOT_LOW;
- else
- client->addr = QT602240_BOOT_HIGH;
-
- ret = qt602240_check_bootloader(client, QT602240_WAITING_BOOTLOAD_CMD);
- if (ret)
- goto out;
-
- /* Unlock bootloader */
- qt602240_unlock_bootloader(client);
-
- while (pos < fw->size) {
- ret = qt602240_check_bootloader(client,
- QT602240_WAITING_FRAME_DATA);
- if (ret)
- goto out;
-
- frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1));
-
- /* We should add 2 at frame size as the the firmware data is not
- * included the CRC bytes.
- */
- frame_size += 2;
-
- /* Write one frame to device */
- qt602240_fw_write(client, fw->data + pos, frame_size);
-
- ret = qt602240_check_bootloader(client,
- QT602240_FRAME_CRC_PASS);
- if (ret)
- goto out;
-
- pos += frame_size;
-
- dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
- }
-
-out:
- release_firmware(fw);
-
- /* Change to slave address of application */
- if (client->addr == QT602240_BOOT_LOW)
- client->addr = QT602240_APP_LOW;
- else
- client->addr = QT602240_APP_HIGH;
-
- return ret;
-}
-
-static ssize_t qt602240_update_fw_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct qt602240_data *data = dev_get_drvdata(dev);
- unsigned int version;
- int error;
-
- if (sscanf(buf, "%u", &version) != 1) {
- dev_err(dev, "Invalid values\n");
- return -EINVAL;
- }
-
- if (data->info.version < QT602240_VER_21 || version < QT602240_VER_21) {
- dev_err(dev, "FW update supported starting with version 21\n");
- return -EINVAL;
- }
-
- disable_irq(data->irq);
-
- error = qt602240_load_fw(dev, QT602240_FW_NAME);
- if (error) {
- dev_err(dev, "The firmware update failed(%d)\n", error);
- count = error;
- } else {
- dev_dbg(dev, "The firmware update succeeded\n");
-
- /* Wait for reset */
- msleep(QT602240_FWRESET_TIME);
-
- kfree(data->object_table);
- data->object_table = NULL;
-
- qt602240_initialize(data);
- }
-
- enable_irq(data->irq);
-
- return count;
-}
-
-static DEVICE_ATTR(object, 0444, qt602240_object_show, NULL);
-static DEVICE_ATTR(update_fw, 0664, NULL, qt602240_update_fw_store);
-
-static struct attribute *qt602240_attrs[] = {
- &dev_attr_object.attr,
- &dev_attr_update_fw.attr,
- NULL
-};
-
-static const struct attribute_group qt602240_attr_group = {
- .attrs = qt602240_attrs,
-};
-
-static void qt602240_start(struct qt602240_data *data)
-{
- /* Touch enable */
- qt602240_write_object(data,
- QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0x83);
-}
-
-static void qt602240_stop(struct qt602240_data *data)
-{
- /* Touch disable */
- qt602240_write_object(data,
- QT602240_TOUCH_MULTI, QT602240_TOUCH_CTRL, 0);
-}
-
-static int qt602240_input_open(struct input_dev *dev)
-{
- struct qt602240_data *data = input_get_drvdata(dev);
-
- qt602240_start(data);
-
- return 0;
-}
-
-static void qt602240_input_close(struct input_dev *dev)
-{
- struct qt602240_data *data = input_get_drvdata(dev);
-
- qt602240_stop(data);
-}
-
-static int __devinit qt602240_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct qt602240_data *data;
- struct input_dev *input_dev;
- int error;
-
- if (!client->dev.platform_data)
- return -EINVAL;
-
- data = kzalloc(sizeof(struct qt602240_data), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!data || !input_dev) {
- dev_err(&client->dev, "Failed to allocate memory\n");
- error = -ENOMEM;
- goto err_free_mem;
- }
-
- input_dev->name = "AT42QT602240/ATMXT224 Touchscreen";
- input_dev->id.bustype = BUS_I2C;
- input_dev->dev.parent = &client->dev;
- input_dev->open = qt602240_input_open;
- input_dev->close = qt602240_input_close;
-
- __set_bit(EV_ABS, input_dev->evbit);
- __set_bit(EV_KEY, input_dev->evbit);
- __set_bit(BTN_TOUCH, input_dev->keybit);
-
- /* For single touch */
- input_set_abs_params(input_dev, ABS_X,
- 0, QT602240_MAX_XC, 0, 0);
- input_set_abs_params(input_dev, ABS_Y,
- 0, QT602240_MAX_YC, 0, 0);
-
- /* For multi touch */
- input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
- 0, QT602240_MAX_AREA, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_POSITION_X,
- 0, QT602240_MAX_XC, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
- 0, QT602240_MAX_YC, 0, 0);
-
- input_set_drvdata(input_dev, data);
-
- data->client = client;
- data->input_dev = input_dev;
- data->pdata = client->dev.platform_data;
- data->irq = client->irq;
-
- i2c_set_clientdata(client, data);
-
- error = qt602240_initialize(data);
- if (error)
- goto err_free_object;
-
- error = request_threaded_irq(client->irq, NULL, qt602240_interrupt,
- IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
- if (error) {
- dev_err(&client->dev, "Failed to register interrupt\n");
- goto err_free_object;
- }
-
- error = input_register_device(input_dev);
- if (error)
- goto err_free_irq;
-
- error = sysfs_create_group(&client->dev.kobj, &qt602240_attr_group);
- if (error)
- goto err_unregister_device;
-
- return 0;
-
-err_unregister_device:
- input_unregister_device(input_dev);
- input_dev = NULL;
-err_free_irq:
- free_irq(client->irq, data);
-err_free_object:
- kfree(data->object_table);
-err_free_mem:
- input_free_device(input_dev);
- kfree(data);
- return error;
-}
-
-static int __devexit qt602240_remove(struct i2c_client *client)
-{
- struct qt602240_data *data = i2c_get_clientdata(client);
-
- sysfs_remove_group(&client->dev.kobj, &qt602240_attr_group);
- free_irq(data->irq, data);
- input_unregister_device(data->input_dev);
- kfree(data->object_table);
- kfree(data);
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int qt602240_suspend(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct qt602240_data *data = i2c_get_clientdata(client);
- struct input_dev *input_dev = data->input_dev;
-
- mutex_lock(&input_dev->mutex);
-
- if (input_dev->users)
- qt602240_stop(data);
-
- mutex_unlock(&input_dev->mutex);
-
- return 0;
-}
-
-static int qt602240_resume(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct qt602240_data *data = i2c_get_clientdata(client);
- struct input_dev *input_dev = data->input_dev;
-
- /* Soft reset */
- qt602240_write_object(data, QT602240_GEN_COMMAND,
- QT602240_COMMAND_RESET, 1);
-
- msleep(QT602240_RESET_TIME);
-
- mutex_lock(&input_dev->mutex);
-
- if (input_dev->users)
- qt602240_start(data);
-
- mutex_unlock(&input_dev->mutex);
-
- return 0;
-}
-
-static const struct dev_pm_ops qt602240_pm_ops = {
- .suspend = qt602240_suspend,
- .resume = qt602240_resume,
-};
-#endif
-
-static const struct i2c_device_id qt602240_id[] = {
- { "qt602240_ts", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, qt602240_id);
-
-static struct i2c_driver qt602240_driver = {
- .driver = {
- .name = "qt602240_ts",
- .owner = THIS_MODULE,
-#ifdef CONFIG_PM
- .pm = &qt602240_pm_ops,
-#endif
- },
- .probe = qt602240_probe,
- .remove = __devexit_p(qt602240_remove),
- .id_table = qt602240_id,
-};
-
-static int __init qt602240_init(void)
-{
- return i2c_add_driver(&qt602240_driver);
-}
-
-static void __exit qt602240_exit(void)
-{
- i2c_del_driver(&qt602240_driver);
-}
-
-module_init(qt602240_init);
-module_exit(qt602240_exit);
-
-/* Module information */
-MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
-MODULE_DESCRIPTION("AT42QT602240/ATMXT224 Touchscreen driver");
-MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * AT42QT602240/ATMXT224 Touchscreen driver
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __LINUX_QT602240_TS_H
+#define __LINUX_QT602240_TS_H
+
+/* Orient */
+#define QT602240_NORMAL 0x0
+#define QT602240_DIAGONAL 0x1
+#define QT602240_HORIZONTAL_FLIP 0x2
+#define QT602240_ROTATED_90_COUNTER 0x3
+#define QT602240_VERTICAL_FLIP 0x4
+#define QT602240_ROTATED_90 0x5
+#define QT602240_ROTATED_180 0x6
+#define QT602240_DIAGONAL_COUNTER 0x7
+
+/* The platform data for the AT42QT602240/ATMXT224 touchscreen driver */
+struct qt602240_platform_data {
+ unsigned int x_line;
+ unsigned int y_line;
+ unsigned int x_size;
+ unsigned int y_size;
+ unsigned int blen;
+ unsigned int threshold;
+ unsigned int voltage;
+ unsigned char orient;
+};
+
+#endif /* __LINUX_QT602240_TS_H */
+++ /dev/null
-/*
- * AT42QT602240/ATMXT224 Touchscreen driver
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * 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; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __LINUX_QT602240_TS_H
-#define __LINUX_QT602240_TS_H
-
-/* Orient */
-#define QT602240_NORMAL 0x0
-#define QT602240_DIAGONAL 0x1
-#define QT602240_HORIZONTAL_FLIP 0x2
-#define QT602240_ROTATED_90_COUNTER 0x3
-#define QT602240_VERTICAL_FLIP 0x4
-#define QT602240_ROTATED_90 0x5
-#define QT602240_ROTATED_180 0x6
-#define QT602240_DIAGONAL_COUNTER 0x7
-
-/* The platform data for the AT42QT602240/ATMXT224 touchscreen driver */
-struct qt602240_platform_data {
- unsigned int x_line;
- unsigned int y_line;
- unsigned int x_size;
- unsigned int y_size;
- unsigned int blen;
- unsigned int threshold;
- unsigned int voltage;
- unsigned char orient;
-};
-
-#endif /* __LINUX_QT602240_TS_H */
projects / firefly-linux-kernel-4.4.55.git / commitdiff