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Commit 69150946 authored by Bingzhe Cai's avatar Bingzhe Cai Committed by Sudhakar Manapati
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input: touchpanel: Goodix GT915 driver cleanup 



Code clean up that makes the driver more like a linux driver.
Add some error recovery to make sure driver will not crash when
error is occurs. Also have cleared the checkpatch errors on 3.18

  This patch is propagated from 3.4 kernel
    commit: c2fcdcda743f881eacccd0ebfe2ab206bf7a6b75
    input: touchpanel: Goodix GT915 driver cleanup

Change-Id: I3af425f5f0251ec576168f72a2059f85c3be4358
Signed-off-by: default avatarBingzhe Cai <bingzhec@codeaurora.org>
Signed-off-by: default avatarSudhakar Manapati <smanap@codeaurora.org>
parent 33697ae3

drivers/input/touchscreen/gt9xx/gt9xx.c

+1378 −1378

File changed.

Preview size limit exceeded, changes collapsed.

drivers/input/touchscreen/gt9xx/gt9xx.h

+229 −198
Original line number Diff line number Diff line 
/* drivers/input/touchscreen/gt9xx.h

 *

 * Copyright (c) 2013, The Linux Foundation. All rights reserved.

 *

 * Linux Foundation chooses to take subject only to the GPLv2 license

 * terms, and distributes only under these terms.

 *

 * 2010 - 2013 Goodix Technology.

 *
@@ -19,29 +24,54 @@ 
#define _GOODIX_GT9XX_H_



#include <linux/kernel.h>

#include <linux/hrtimer.h>

#include <linux/i2c.h>

#include <linux/irq.h>

#include <linux/input.h>

#include <linux/module.h>

#include <linux/delay.h>

#include <linux/i2c.h>

#include <linux/proc_fs.h>

#include <linux/string.h>

#include <asm/uaccess.h>

#include <linux/vmalloc.h>

#include <linux/slab.h>

#include <linux/interrupt.h>

#include <linux/io.h>

#include <mach/gpio.h>

#include <linux/delay.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/gpio.h>

#include <linux/regulator/consumer.h>

#include <linux/firmware.h>

#include <linux/debugfs.h>

#if defined(CONFIG_HAS_EARLYSUSPEND)

#include <linux/earlysuspend.h>

#define GOODIX_SUSPEND_LEVEL 1

#endif



struct goodix_ts_platform_data {

	int irq_gpio;

	u32 irq_gpio_flags;

	int reset_gpio;

	u32 reset_gpio_flags;

	int ldo_en_gpio;

	u32 ldo_en_gpio_flags;

	u32 family_id;

	u32 x_max;

	u32 y_max;

	u32 x_min;

	u32 y_min;

	u32 panel_minx;

	u32 panel_miny;

	u32 panel_maxx;

	u32 panel_maxy;

	bool no_force_update;

	bool i2c_pull_up;

};

struct goodix_ts_data {

	spinlock_t irq_lock;

	struct i2c_client *client;

	struct input_dev  *input_dev;

	struct goodix_ts_platform_data *pdata;

	struct hrtimer timer;

	struct workqueue_struct *goodix_wq;

	struct work_struct	work;

#if defined(CONFIG_HAS_EARLYSUSPEND)

	struct early_suspend early_suspend;

    s32 irq_is_disable;

#endif

	s32 irq_is_disabled;

	s32 use_irq;

	u16 abs_x_max;

	u16 abs_y_max;
@@ -49,6 +79,7 @@ struct goodix_ts_data { 
	u8  int_trigger_type;

	u8  green_wake_mode;

	u8  chip_type;

	u8 *config_data;

	u8  enter_update;

	u8  gtp_is_suspend;

	u8  gtp_rawdiff_mode;
@@ -61,41 +92,46 @@ struct goodix_ts_data { 
extern u16 show_len;

extern u16 total_len;



//***************************PART1:ON/OFF define*******************************

/***************************PART1:ON/OFF define*******************************/

#define GTP_CUSTOM_CFG			0

#define GTP_CHANGE_X2Y			0

#define GTP_DRIVER_SEND_CFG		1

#define GTP_HAVE_TOUCH_KEY    0

#define GTP_POWER_CTRL_SLEEP  0

#define GTP_HAVE_TOUCH_KEY		1

#define GTP_POWER_CTRL_SLEEP	1

#define GTP_ICS_SLOT_REPORT	0



#define GTP_AUTO_UPDATE       1     // auto updated by .bin file as default

#define GTP_HEADER_FW_UPDATE  0     // auto updated by head_fw_array in gt9xx_firmware.h, function together with GTP_AUTO_UPDATE

/* auto updated by .bin file as default */

#define GTP_AUTO_UPDATE			0

/* auto updated by head_fw_array in gt9xx_firmware.h,

 * function together with GTP_AUTO_UPDATE */

#define GTP_HEADER_FW_UPDATE	0



#define GTP_CREATE_WR_NODE    1

#define GTP_CREATE_WR_NODE		0

#define GTP_ESD_PROTECT			0

#define GTP_WITH_PEN			0



#define GTP_SLIDE_WAKEUP		0

#define GTP_DBL_CLK_WAKEUP    0     // double-click wakeup, function together with GTP_SLIDE_WAKEUP

/* double-click wakeup, function together with GTP_SLIDE_WAKEUP */

#define GTP_DBL_CLK_WAKEUP		0



#define GTP_DEBUG_ON			1

#define GTP_DEBUG_ARRAY_ON		0

#define GTP_DEBUG_FUNC_ON		0



//*************************** PART2:TODO define **********************************

// STEP_1(REQUIRED): Define Configuration Information Group(s)

// Sensor_ID Map:

/*************************** PART2:TODO define *******************************/

/* STEP_1(REQUIRED): Define Configuration Information Group(s) */

/* Sensor_ID Map: */

/* sensor_opt1 sensor_opt2 Sensor_ID

    GND         GND         0 

    VDDIO       GND         1 

    NC          GND         2 

    GND         NC/300K     3 

    VDDIO       NC/300K     4 

    NC          NC/300K     5 

 *	GND			GND			0

 *	VDDIO		GND			1

 *	NC			GND			2

 *	GND			NC/300K		3

 *	VDDIO		NC/300K		4

 *	NC			NC/300K		5

*/

// TODO: define your own default or for Sensor_ID == 0 config here. 

// The predefined one is just a sample config, which is not suitable for your tp in most cases.

/* Define your own default or for Sensor_ID == 0 config here */

/* The predefined one is just a sample config,

 * which is not suitable for your tp in most cases. */

#define CTP_CFG_GROUP1 {\

	0x41, 0x1C, 0x02, 0xC0, 0x03, 0x0A, 0x05, 0x01, 0x01, 0x0F,\

	0x23, 0x0F, 0x5F, 0x41, 0x03, 0x05, 0x00, 0x00, 0x00, 0x00,\
@@ -122,67 +158,53 @@ extern u16 total_len; 
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x91, 0x01\

	}



// TODO: define your config for Sensor_ID == 1 here, if needed

/* Define your config for Sensor_ID == 1 here, if needed */

#define CTP_CFG_GROUP2 {\

	}

// TODO: define your config for Sensor_ID == 2 here, if needed



/* Define your config for Sensor_ID == 2 here, if needed */

#define CTP_CFG_GROUP3 {\

	}



// TODO: define your config for Sensor_ID == 3 here, if needed

/* Define your config for Sensor_ID == 3 here, if needed */

#define CTP_CFG_GROUP4 {\

	}



// TODO: define your config for Sensor_ID == 4 here, if needed

/* Define your config for Sensor_ID == 4 here, if needed */

#define CTP_CFG_GROUP5 {\

	}



// TODO: define your config for Sensor_ID == 5 here, if needed

/* Define your config for Sensor_ID == 5 here, if needed */

#define CTP_CFG_GROUP6 {\

	}



// STEP_2(REQUIRED): Customize your I/O ports & I/O operations

#define GTP_RST_PORT    S5PV210_GPJ3(6)

#define GTP_INT_PORT    S5PV210_GPH1(3)

#define GTP_INT_IRQ     gpio_to_irq(GTP_INT_PORT)

#define GTP_INT_CFG     S3C_GPIO_SFN(0xF)



#define GTP_GPIO_AS_INPUT(pin)          do{\

                                            gpio_direction_input(pin);\

                                            s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);\

                                        }while(0)

#define GTP_GPIO_AS_INT(pin)            do{\

                                            GTP_GPIO_AS_INPUT(pin);\

                                            s3c_gpio_cfgpin(pin, GTP_INT_CFG);\

                                        }while(0)

#define GTP_GPIO_GET_VALUE(pin)         gpio_get_value(pin)

#define GTP_GPIO_OUTPUT(pin,level)      gpio_direction_output(pin,level)

#define GTP_GPIO_REQUEST(pin, label)    gpio_request(pin, label)

#define GTP_GPIO_FREE(pin)              gpio_free(pin)

#define GTP_IRQ_TAB                     {IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING, IRQ_TYPE_LEVEL_LOW, IRQ_TYPE_LEVEL_HIGH}

#define GTP_IRQ_TAB		{\

				IRQ_TYPE_EDGE_RISING,\

				IRQ_TYPE_EDGE_FALLING,\

				IRQ_TYPE_LEVEL_LOW,\

				IRQ_TYPE_LEVEL_HIGH\

				}



// STEP_3(optional): Specify your special config info if needed

/* STEP_3(optional): Specify your special config info if needed */

#define GTP_IRQ_TAB_RISING	0

#define GTP_IRQ_TAB_FALLING	1

#if GTP_CUSTOM_CFG

#define GTP_MAX_HEIGHT		800

#define GTP_MAX_WIDTH		480

  #define GTP_INT_TRIGGER  0            // 0: Rising 1: Falling

#define GTP_INT_TRIGGER		GTP_IRQ_TAB_RISING

#else

#define GTP_MAX_HEIGHT		4096

#define GTP_MAX_WIDTH		4096

  #define GTP_INT_TRIGGER  1

#define GTP_INT_TRIGGER		GTP_IRQ_TAB_FALLING

#endif

#define GTP_MAX_TOUCH         5

#define GTP_ESD_CHECK_CIRCLE  2000      // jiffy: ms



// STEP_4(optional): If keys are available and reported as keys, config your key info here                             

#if GTP_HAVE_TOUCH_KEY

    #define GTP_KEY_TAB  {KEY_MENU, KEY_HOME, KEY_BACK}

#endif

#define GTP_MAX_TOUCH         5

#define GTP_ESD_CHECK_CIRCLE  2000      /* jiffy: ms */



//***************************PART3:OTHER define*********************************

/***************************PART3:OTHER define*********************************/

#define GTP_DRIVER_VERSION		"V1.8<2013/06/08>"

#define GTP_I2C_NAME			"Goodix-TS"

#define GTP_POLL_TIME         10     // jiffy: ms

#define GTP_POLL_TIME			10     /* jiffy: ms*/

#define GTP_ADDR_LENGTH			2

#define GTP_CONFIG_MIN_LENGTH	186

#define GTP_CONFIG_MAX_LENGTH	240
@@ -191,7 +213,7 @@ extern u16 total_len; 
#define SWITCH_OFF				0

#define SWITCH_ON				1



// Registers define

/* Registers define */

#define GTP_READ_COOR_ADDR		0x814E

#define GTP_REG_SLEEP			0x8040

#define GTP_REG_SENSOR_ID		0x814A
@@ -202,40 +224,49 @@ extern u16 total_len; 
#define TRIGGER_LOC				8



#define CFG_GROUP_LEN(p_cfg_grp) (sizeof(p_cfg_grp) / sizeof(p_cfg_grp[0]))

// Log define

#define GTP_INFO(fmt,arg...)           printk("<<-GTP-INFO->> "fmt"\n",##arg)

#define GTP_ERROR(fmt,arg...)          printk("<<-GTP-ERROR->> "fmt"\n",##arg)

/* Log define */

#define GTP_DEBUG(fmt, arg...)	do {\

                                         if(GTP_DEBUG_ON)\

                                         printk("<<-GTP-DEBUG->> [%d]"fmt"\n",__LINE__, ##arg);\

		if (GTP_DEBUG_ON) {\

			pr_debug("<<-GTP-DEBUG->> [%d]"fmt"\n",\

				__LINE__, ##arg); } \

		} while (0)



#define GTP_DEBUG_ARRAY(array, num)    do {\

		s32 i; \

		u8 *a = array; \

                                         if(GTP_DEBUG_ARRAY_ON)\

                                         {\

                                            printk("<<-GTP-DEBUG-ARRAY->>\n");\

                                            for (i = 0; i < (num); i++)\

                                            {\

                                                printk("%02x   ", (a)[i]);\

                                                if ((i + 1 ) %10 == 0)\

                                                {\

                                                    printk("\n");\

		if (GTP_DEBUG_ARRAY_ON) {\

			pr_debug("<<-GTP-DEBUG-ARRAY->>\n");\

			for (i = 0; i < (num); i++) { \

				pr_debug("%02x   ", (a)[i]);\

				if ((i + 1) % 10 == 0) { \

					pr_debug("\n");\

				} \

			} \

                                            printk("\n");\

			pr_debug("\n");\

		} \

	} while (0)



#define GTP_DEBUG_FUNC()	do {\

	if (GTP_DEBUG_FUNC_ON)\

                                         printk("<<-GTP-FUNC->> Func:%s@Line:%d\n",__func__,__LINE__);\

		pr_debug("<<-GTP-FUNC->> Func:%s@Line:%d\n",\

					__func__, __LINE__);\

	} while (0)



#define GTP_SWAP(x, y)		do {\

					typeof(x) z = x;\

					x = y;\

					y = z;\

				} while (0)

/*****************************End of Part III********************************/



//*****************************End of Part III********************************

void gtp_esd_switch(struct i2c_client *client, int on);



#if GTP_CREATE_WR_NODE

extern s32 init_wr_node(struct i2c_client *client);

extern void uninit_wr_node(void);

#endif



#if GTP_AUTO_UPDATE

extern u8 gup_init_update_proc(struct goodix_ts_data *ts);

#endif

#endif /* _GOODIX_GT9XX_H_ */