On Wed, Jul 07, 2010 at 04:40:23PM +0900, Joonyoung Shim wrote:
> This chip full name is AT42QT602240 or ATMXT224. This is the capacitive
> touchscreen supporting 10 multitouch and uses I2C interface.
>
> Signed-off-by: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
Henrik, Jean,
Have your concerns with this patch been addressed? If I get your
acked-by I am ready to apply it.
Thanks.
> ---
> Changes since v1:
> - Splitting long functions up
> - Use threaded IRQs
> - Add open() and close() methods for the input device
> - Code cleanup from patch v1 feedback
>
> Changes since v2:
> - Fix MT events reporting
> - Add mutex on resume function
>
> Changes since v3:
> - Code cleanup
> - Add qt602240_start/_stop functions
> - Remove resume work
> - Use i2c_transfer() instead of i2c_master_send() + i2c_master_recv()
>
> drivers/input/touchscreen/Kconfig | 12 +
> drivers/input/touchscreen/Makefile | 1 +
> drivers/input/touchscreen/qt602240_ts.c | 1395 +++++++++++++++++++++++++++++++
> include/linux/i2c/qt602240_ts.h | 39 +
> 4 files changed, 1447 insertions(+), 0 deletions(-)
> create mode 100644 drivers/input/touchscreen/qt602240_ts.c
> create mode 100644 include/linux/i2c/qt602240_ts.h
>
> diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
> index 3b9d5e2..99c8c7e 100644
> --- a/drivers/input/touchscreen/Kconfig
> +++ b/drivers/input/touchscreen/Kconfig
> @@ -603,4 +603,16 @@ config TOUCHSCREEN_TPS6507X
> To compile this driver as a module, choose M here: the
> module will be called tps6507x_ts.
>
> +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.
> +
> endif
> diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
> index 497964a..4f3760b 100644
> --- a/drivers/input/touchscreen/Makefile
> +++ b/drivers/input/touchscreen/Makefile
> @@ -47,3 +47,4 @@ obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o
> obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o
> obj-$(CONFIG_TOUCHSCREEN_W90X900) += w90p910_ts.o
> obj-$(CONFIG_TOUCHSCREEN_TPS6507X) += tps6507x-ts.o
> +obj-$(CONFIG_TOUCHSCREEN_QT602240) += qt602240_ts.o
> diff --git a/drivers/input/touchscreen/qt602240_ts.c b/drivers/input/touchscreen/qt602240_ts.c
> new file mode 100644
> index 0000000..1ef79f8
> --- /dev/null
> +++ b/drivers/input/touchscreen/qt602240_ts.c
> @@ -0,0 +1,1395 @@
> +/*
> + * qt602240_ts.c - AT42QT602240/ATMXT224 Touchscreen driver
> + *
> + * Copyright (C) 2010 Samsung Electronics Co.Ltd
> + * Author: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
> + *
> + * 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;
> + 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 int 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 1;
> + default:
> + return 0;
> + }
> +}
> +
> +static int 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 1;
> + default:
> + return 0;
> + }
> +}
> +
> +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,
> + u8 *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 type\n");
> + return NULL;
> +}
> +
> +static int qt602240_read_message(struct qt602240_data *data,
> + struct qt602240_message *message)
> +{
> + struct i2c_client *client = data->client;
> + 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(client, reg, sizeof(struct qt602240_message),
> + (u8 *)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 = 0;
> + int ret;
> + 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;
> + break;
> + default:
> + dev_err(dev, "Invalid X/Y lines\n");
> + return -EINVAL;
> + }
> +
> + ret = qt602240_read_object(data, QT602240_SPT_CTECONFIG,
> + QT602240_CTE_MODE, &val);
> + if (ret)
> + return ret;
> +
> + 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 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 ret;
> + u8 val;
> +
> + ret = qt602240_read_reg(client, QT602240_FAMILY_ID, &val);
> + if (ret)
> + return ret;
> + info->family_id = val;
> +
> + ret = qt602240_read_reg(client, QT602240_VARIANT_ID, &val);
> + if (ret)
> + return ret;
> + info->variant_id = val;
> +
> + ret = qt602240_read_reg(client, QT602240_VERSION, &val);
> + if (ret)
> + return ret;
> + info->version = val;
> +
> + ret = qt602240_read_reg(client, QT602240_BUILD, &val);
> + if (ret)
> + return ret;
> + info->build = val;
> +
> + ret = qt602240_read_reg(client, QT602240_OBJECT_NUM, &val);
> + if (ret)
> + return ret;
> + info->object_num = val;
> +
> + return 0;
> +}
> +
> +static int qt602240_get_object_table(struct qt602240_data *data)
> +{
> + int ret;
> + 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;
> + ret = qt602240_read_object_table(data->client, reg, buf);
> + if (ret)
> + return ret;
> +
> + 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 count = 10;
> + int ret;
> + u8 val;
> +
> + ret = qt602240_get_info(data);
> + if (ret)
> + return ret;
> +
> + data->object_table =
> + kzalloc(sizeof(struct qt602240_data) * info->object_num,
> + GFP_KERNEL);
> + if (!data->object_table) {
> + dev_err(&client->dev, "Failed to allocate memory\n");
> + return -ENOMEM;
> + }
> +
> + /* Get object table information */
> + ret = qt602240_get_object_table(data);
> + if (ret)
> + return ret;
> +
> + /* Check register init values */
> + ret = qt602240_check_reg_init(data);
> + if (ret)
> + return ret;
> +
> + /* Check X/Y matrix size */
> + ret = qt602240_check_matrix_size(data);
> + if (ret)
> + return ret;
> +
> + /* Read dummy message to make high CHG pin */
> + do {
> + ret = qt602240_read_object(data, QT602240_GEN_MESSAGE, 0, &val);
> + if (ret)
> + return ret;
> + } while ((val != 0xff) && --count);
> +
> + if (!count) {
> + dev_err(&client->dev, "CHG pin isn't cleared\n");
> + return -EBUSY;
> + }
> +
> + 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 */
> + ret = qt602240_read_reg(client, QT602240_MATRIX_X_SIZE, &val);
> + if (ret)
> + return ret;
> + info->matrix_xsize = val;
> +
> + ret = qt602240_read_reg(client, QT602240_MATRIX_Y_SIZE, &val);
> + if (ret)
> + return ret;
> + 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 ret;
> + u8 val;
> +
> + if (!data) {
> + dev_err(dev, "The data is NULL\n");
> + return -EFAULT;
> + }
> +
> + 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++) {
> + ret = qt602240_read_object(data, object->type, j, &val);
> + if (ret)
> + return count;
> +
> + 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;
> +
> + if (!data) {
> + dev_err(dev, "The data is NULL\n");
> + return -EFAULT;
> + }
> +
> + 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 err_fw;
> +
> + /* Unlock bootloader */
> + qt602240_unlock_bootloader(client);
> +
> + while (pos < fw->size) {
> + ret = qt602240_check_bootloader(client,
> + QT602240_WAITING_FRAME_DATA);
> + if (ret)
> + goto err_fw;
> +
> + 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 err_fw;
> +
> + pos += frame_size;
> +
> + dev_dbg(dev, "Updated %zd bytes / %zd bytes\n", pos, fw->size);
> + }
> +
> +err_fw:
> + 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 ret;
> +
> + 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);
> +
> + ret = qt602240_load_fw(dev, QT602240_FW_NAME);
> + if (ret)
> + dev_err(dev, "The firmware update failed(%d)\n", ret);
> + else {
> + dev_dbg(dev, "The firmware update succeeded\n");
> +
> + /* Wait for reset */
> + msleep(QT602240_FWRESET_TIME);
> +
> + kfree(data->object_table);
> +
> + 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 ret;
> +
> + 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");
> + ret = -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);
> +
> + ret = qt602240_initialize(data);
> + if (ret)
> + goto err_free_object;
> +
> + ret = request_threaded_irq(client->irq, NULL, qt602240_interrupt,
> + IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
> + if (ret) {
> + dev_err(&client->dev, "Failed to register interrupt\n");
> + goto err_free_object;
> + }
> +
> + ret = input_register_device(input_dev);
> + if (ret)
> + goto err_free_irq;
> +
> + ret = sysfs_create_group(&client->dev.kobj, &qt602240_attr_group);
> + if (ret)
> + goto err_unregister_device;
> +
> + return 0;
> +
> +err_unregister_device:
> + input_unregister_device(input_dev);
> +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 ret;
> +}
> +
> +static int __devexit qt602240_remove(struct i2c_client *client)
> +{
> + struct qt602240_data *data = i2c_get_clientdata(client);
> +
> + free_irq(data->irq, data);
> + input_unregister_device(data->input_dev);
> + kfree(data->object_table);
> + kfree(data);
> +
> + sysfs_remove_group(&client->dev.kobj, &qt602240_attr_group);
> +
> + return 0;
> +}
> +
> +#ifdef CONFIG_PM
> +static int qt602240_suspend(struct i2c_client *client, pm_message_t mesg)
> +{
> + 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 i2c_client *client)
> +{
> + 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;
> +}
> +#else
> +#define qt602240_suspend NULL
> +#define qt602240_resume NULL
> +#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",
> + },
> + .probe = qt602240_probe,
> + .remove = __devexit_p(qt602240_remove),
> + .suspend = qt602240_suspend,
> + .resume = qt602240_resume,
> + .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@xxxxxxxxxxx>");
> +MODULE_DESCRIPTION("AT42QT602240/ATMXT224 Touchscreen driver");
> +MODULE_LICENSE("GPL");
> diff --git a/include/linux/i2c/qt602240_ts.h b/include/linux/i2c/qt602240_ts.h
> new file mode 100644
> index 0000000..09b55f9
> --- /dev/null
> +++ b/include/linux/i2c/qt602240_ts.h
> @@ -0,0 +1,39 @@
> +/*
> + * qt602240_ts.h - AT42QT602240/ATMXT224 Touchscreen driver
> + *
> + * Copyright (C) 2010 Samsung Electronics Co.Ltd
> + * Author: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
> + *
> + * 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 */
> --
> 1.7.0.4
>
--
Dmitry
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