Hey, Oliver On Mon, Jan 12, 2015 at 7:50 PM, Oliver Neukum wrote: On Mon, 2015-01-12 at 18:53 +0800, 曾婷葳 (tammy_tseng) wrote: > > (Skip the code diff...) > > Again macros for endianness > > And the driver has a great number of conditional compilations are they > really needed? The driver as is has a number of issues and is hard to > review due to the use of "//" for comments and a lot of conditional > compilation and unnecessary variables used for constants. Could you > fix this up and resubmit? Thanks for the reply. I've modified the code (sis_i2c.c/sis_i2c.h/Kconfig/Makefile) to fix them. Please help check them if anything needs to fix. Thanks. Tammy --- diff --git a/linux-3.18.1/drivers/input/touchscreen/Kconfig b/linux-3.18.1/drivers/input/touchscreen/Kconfig index e1d8003..401cd8b 100644 --- a/linux-3.18.1/drivers/input/touchscreen/Kconfig +++ b/linux-3.18.1/drivers/input/touchscreen/Kconfig @@ -962,4 +962,12 @@ config TOUCHSCREEN_ZFORCE To compile this driver as a module, choose M here: the module will be called zforce_ts. +config TOUCHSCREEN_SIS_I2C + tristate "SiS 9200 family I2C touchscreen driver" + depends on I2C + default n + help + This enables support for SiS 9200 family over I2C based touchscreens. + + endif diff --git a/linux-3.18.1/drivers/input/touchscreen/Makefile b/linux-3.18.1/drivers/input/touchscreen/Makefile index 090e61c..67137af 100644 --- a/linux-3.18.1/drivers/input/touchscreen/Makefile +++ b/linux-3.18.1/drivers/input/touchscreen/Makefile @@ -79,3 +79,4 @@ 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_ZFORCE) += zforce_ts.o +obj-$(CONFIG_TOUCHSCREEN_SIS_I2C) += sis_i2c.o diff --git a/linux-3.18.1/drivers/input/touchscreen/sis_i2c.c b/linux-3.18.1/drivers/input/touchscreen/sis_i2c.c new file mode 100644 index 0000000..157f991 --- /dev/null +++ b/linux-3.18.1/drivers/input/touchscreen/sis_i2c.c @@ -0,0 +1,1267 @@ +/* + * SiS 9200 family I2C Touch Screen Controller Driver + * + * Copyright (C) 2011 SiS, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#ifdef CONFIG_HAS_EARLYSUSPEND +#include +#endif +#include +#include +#include +#include +#include +#include +#include "sis_i2c.h" +#include +#include +#include +#include +#include +#include + +#ifdef _STD_RW_IO +#include +#include +#include +#define DEVICE_NAME "sis_aegis_touch_device" +static int sis_char_devs_count = 1; /* device count */ +static int sis_char_major = 0; +static struct cdev sis_char_cdev; +static struct class *sis_char_class = NULL; #endif + +/* Addresses to scan */ +static const unsigned short normal_i2c[] = { SIS_SLAVE_ADDR, +I2C_CLIENT_END }; static struct workqueue_struct *sis_wq; struct +sis_ts_data *ts_bak = 0; struct sisTP_driver_data *TPInfo = NULL; +static void sis_tpinfo_clear(struct sisTP_driver_data *TPInfo, int +max); + +#ifdef CONFIG_HAS_EARLYSUSPEND +static void sis_ts_early_suspend(struct early_suspend *h); static void +sis_ts_late_resume(struct early_suspend *h); #endif + +#ifdef CONFIG_X86 +/* static const struct i2c_client_address_data addr_data; */ +/* Insmod parameters */ +static int sis_ts_detect(struct i2c_client *client, struct +i2c_board_info *info); #endif + +#ifdef _CHECK_CRC +uint16_t cal_crc (char* cmd, int start, int end); #endif + +static void PrintBuffer(int start, int length, char* buf) { + int i; + for ( i = start; i < length; i++ ) + { + printk("%02x ", buf[i]); + if (i != 0 && i % 30 == 0) + printk("\n"); + } + printk("\n"); +} + +int sis_command_for_write(struct i2c_client *client, int wlength, +unsigned char *wdata) { + int ret = -1; + struct i2c_msg msg; + + msg.addr = client->addr; + /* Write */ + msg.flags = 0; + msg.len = wlength; + msg.buf = (unsigned char *)wdata; + + ret = i2c_transfer(client->adapter, &msg, 1); + + return ret; +} + +int sis_command_for_read(struct i2c_client *client, int rlength, +unsigned char *rdata) { + int ret = -1; + struct i2c_msg msg; + + msg.addr = client->addr; + /* Read */ + msg.flags = I2C_M_RD; + msg.len = rlength; + msg.buf = rdata; + + ret = i2c_transfer(client->adapter, &msg, 1); + + return ret; +} + +int sis_cul_unit(uint8_t report_id) +{ + int ret = NORMAL_LEN_PER_POINT; + + if (report_id != ALL_IN_ONE_PACKAGE) + { + if (IS_AREA(report_id) /*&& IS_TOUCH(report_id)*/) + { + ret += AREA_LEN_PER_POINT; + } + if (IS_PRESSURE(report_id)) + { + ret += PRESSURE_LEN_PER_POINT; + } + } + + return ret; +} + +int sis_ReadPacket(struct i2c_client *client, uint8_t cmd, uint8_t* +buf) { + uint8_t tmpbuf[MAX_BYTE] = {0}; +#ifdef _CHECK_CRC + uint16_t buf_crc = 0; + uint16_t package_crc = 0; + int l_package_crc = 0; + int crc_end = 0; +#endif + int ret = -1; + int touchnum = 0; + int p_count = 0; + int touc_formate_id = 0; + int locate = 0; + bool read_first = true; + +/* + New i2c format + * buf[0] = Low 8 bits of byte count value + * buf[1] = High 8 bits of byte counte value + * buf[2] = Report ID + * buf[touch num * 6 + 2 ] = Touch informations; 1 touch point has 6 bytes, it could be none if no touch + * buf[touch num * 6 + 3] = Touch numbers + * + * One touch point information include 6 bytes, the order is + * + * 1. status = touch down or touch up + * 2. id = finger id + * 3. x axis low 8 bits + * 4. x axis high 8 bits + * 5. y axis low 8 bits + * 6. y axis high 8 bits + * +*/ + do + { + if (locate >= PACKET_BUFFER_SIZE) + { + printk(KERN_ERR "sis_ReadPacket: Buf Overflow\n"); + return -1; + } + + ret = sis_command_for_read(client, MAX_BYTE, tmpbuf); + +#ifdef _DEBUG_PACKAGE + printk(KERN_INFO "chaoban test: Buf_Data [0~63] \n"); + PrintBuffer(0, 64, tmpbuf); +#endif + + if(ret < 0 ) + { + printk(KERN_ERR "sis_ReadPacket: i2c transfer error\n"); + return ret; + } + /* error package length of receiving data */ + else if (tmpbuf[P_BYTECOUNT] > MAX_BYTE) + { + printk(KERN_ERR "sis_ReadPacket: Error Bytecount\n"); + return -1; + } + + if (read_first) + { +#ifdef _SUPPORT_BUTTON_TOUCH + /* access BUTTON TOUCH event and BUTTON NO TOUCH event */ + if (tmpbuf[P_REPORT_ID] == BUTTON_FORMAT) + { + memcpy(&buf[0], &tmpbuf[0], 7); + return 0; /* touchnum is 0 */ + } +#endif + /* access NO TOUCH event unless BUTTON NO TOUCH event */ + if (tmpbuf[P_BYTECOUNT] == 0/*NO_TOUCH_BYTECOUNT*/) + { + return 0; /* touchnum is 0 */ + } + } + + /* skip parsing data when two devices are registered at the same slave address + * parsing data when P_REPORT_ID && 0xf is TOUCH_FORMAT or P_REPORT_ID is ALL_IN_ONE_PACKAGE + */ + touc_formate_id = tmpbuf[P_REPORT_ID] & 0xf; + if ((touc_formate_id != TOUCH_FORMAT) && (touc_formate_id != HIDI2C_FORMAT) && (tmpbuf[P_REPORT_ID] != ALL_IN_ONE_PACKAGE)) + { + printk(KERN_ERR "sis_ReadPacket: Error Report_ID\n"); + return -1; + } + + p_count = (int) tmpbuf[P_BYTECOUNT] - 1; /* start from 0 */ + if (tmpbuf[P_REPORT_ID] != ALL_IN_ONE_PACKAGE) + { + if (IS_TOUCH(tmpbuf[P_REPORT_ID])) + { + p_count -= BYTE_CRC_I2C; /* delete 2 byte crc */ + } + else if (IS_HIDI2C(tmpbuf[P_REPORT_ID])) + { + p_count -= BYTE_CRC_HIDI2C; + } + else /* should not be happen */ + { + printk(KERN_ERR "sis_ReadPacket: delete crc error\n"); + return -1; + } + + if (IS_SCANTIME(tmpbuf[P_REPORT_ID])) + { + p_count -= BYTE_SCANTIME; + } + } + /* else {} For ALL_IN_ONE_PACKAGE */ + + if (read_first) + { + touchnum = tmpbuf[p_count]; + } + else + { + if (tmpbuf[p_count] != 0) + { + printk(KERN_ERR "sis_ReadPacket: get error package\n"); + return -1; + } + } + +#ifdef _CHECK_CRC + crc_end = p_count + (IS_SCANTIME(tmpbuf[P_REPORT_ID]) * 2); + buf_crc = cal_crc(tmpbuf, 2, crc_end); /* sub bytecount (2 byte) */ + l_package_crc = p_count + 1 + (IS_SCANTIME(tmpbuf[P_REPORT_ID]) * 2); + package_crc = get_unaligned_le16(&tmpbuf[l_package_crc]); + + if (buf_crc != package_crc) + { + printk(KERN_ERR "sis_ReadPacket: CRC Error\n"); + return -1; + } +#endif + memcpy(&buf[locate], &tmpbuf[0], 64); /* Buf_Data [0~63] [64~128] */ + locate += 64; + read_first = false; + + }while(tmpbuf[P_REPORT_ID] != ALL_IN_ONE_PACKAGE && tmpbuf[p_count] +> 5); + + return touchnum; +} + + +int check_gpio_interrupt(void) +{ + int ret = 0; + + /* CHECK GPIO INTERRUPT STATUS BY YOUR PLATFORM SETTING. */ + ret = gpio_get_value(GPIO_IRQ); + + return ret; +} + +void ts_report_key(struct i2c_client *client, uint8_t keybit_state) { + int i = 0; + uint8_t diff_keybit_state= 0x0; /* check keybit_state is difference with pre_keybit_state */ + uint8_t key_value = 0x0; /* button location for binary */ + uint8_t key_pressed = 0x0; /* button is up or down */ + struct sis_ts_data *ts = i2c_get_clientdata(client); + + if (!ts) + { + printk(KERN_ERR "%s error: Missing Platform Data!\n", __func__); + return; + } + + diff_keybit_state = TPInfo->pre_keybit_state ^ keybit_state; + + if (diff_keybit_state) + { + for (i = 0; i < BUTTON_KEY_COUNT; i++) + { + if ((diff_keybit_state >> i) & 0x01) + { + key_value = diff_keybit_state & (0x01 << i); + key_pressed = (keybit_state >> i) & 0x01; + switch (key_value) + { + case MSK_COMP: + input_report_key(ts->input_dev, KEY_COMPOSE, key_pressed); + break; + case MSK_BACK: + input_report_key(ts->input_dev, KEY_BACK, key_pressed); + break; + case MSK_MENU: + input_report_key(ts->input_dev, KEY_MENU, key_pressed); + break; + case MSK_HOME: + input_report_key(ts->input_dev, KEY_HOME, key_pressed); + break; + case MSK_NOBTN: + /* Release the button if it touched. */ + default: + break; + } + } + } + TPInfo->pre_keybit_state = keybit_state; + } +} + + +static void sis_ts_work_func(struct work_struct *work) { + struct sis_ts_data *ts = container_of(work, struct sis_ts_data, work); + int ret = -1; + int point_unit; + uint8_t buf[PACKET_BUFFER_SIZE] = {0}; + uint8_t i = 0, fingers = 0; + uint8_t px = 0, py = 0, pstatus = 0; + uint8_t p_area = 0; + uint8_t p_preasure = 0; +#ifdef _SUPPORT_BUTTON_TOUCH + int button_key; + uint8_t button_buf[10] = {0}; +#endif + +#ifdef _ANDROID_4 + bool all_touch_up = true; +#endif + + mutex_lock(&ts->mutex_wq); + + /* I2C or SMBUS block data read */ + ret = sis_ReadPacket(ts->client, SIS_CMD_NORMAL, buf); + +#ifdef _SUPPORT_BUTTON_TOUCH + sis_ReadPacket(ts->client, SIS_CMD_NORMAL, button_buf); #endif + + /* Error Number */ + if (ret < 0) + { + goto err_free_allocate; + } +#ifdef _SUPPORT_BUTTON_TOUCH + /* access BUTTON TOUCH event and BUTTON NO TOUCH even */ + else if (button_buf[P_REPORT_ID] == BUTTON_FORMAT) + { + button_key = get_unaligned_le16(&button_buf[BUTTON_STATE]); + ts_report_key(ts->client, button_key); + } +#endif + /* access NO TOUCH event unless BUTTON NO TOUCH event */ + else if (ret == 0) + { + fingers = 0; + sis_tpinfo_clear(TPInfo, MAX_FINGERS); + goto label_send_report; /* need to report input_mt_sync() */ + } + + sis_tpinfo_clear(TPInfo, MAX_FINGERS); + + /* Parser and Get the sis9200 data */ + point_unit = sis_cul_unit(buf[P_REPORT_ID]); + fingers = ret; + + TPInfo->fingers = fingers = (fingers > MAX_FINGERS ? 0 : fingers); + + /* fingers 10 = 0 ~ 9 */ + for (i = 0; i < fingers; i++) + { + if ((buf[P_REPORT_ID] != ALL_IN_ONE_PACKAGE) && (i >= 5)) + { /* Calc point status */ + pstatus = BYTE_BYTECOUNT + BYTE_ReportID + ((i - 5) * point_unit); + pstatus += 64; + } + else + { /* Calc point status */ + pstatus = BYTE_BYTECOUNT + BYTE_ReportID + (i * point_unit); + } + + px = pstatus + 2; /* Calc point x_coord */ + py = px + 2; /* Calc point y_coord */ + + if ((buf[pstatus]) == TOUCHUP) + { + TPInfo->pt[i].Width = 0; + TPInfo->pt[i].Height = 0; + TPInfo->pt[i].Pressure = 0; + } + else if (buf[P_REPORT_ID] == ALL_IN_ONE_PACKAGE && (buf[pstatus]) == TOUCHDOWN) + { + TPInfo->pt[i].Width = 1; + TPInfo->pt[i].Height = 1; + TPInfo->pt[i].Pressure = 1; + } + else if ((buf[pstatus]) == TOUCHDOWN) + { + p_area = py + 2; + p_preasure = py + 2 + (IS_AREA(buf[P_REPORT_ID]) * 2); + + /* area */ + if (IS_AREA(buf[P_REPORT_ID])) + { + TPInfo->pt[i].Width = buf[p_area] & 0xff; + TPInfo->pt[i].Height = buf[p_area + 1] & 0xff; + } + else + { + TPInfo->pt[i].Width = 1; + TPInfo->pt[i].Height = 1; + } + /* preasure */ + if (IS_PRESSURE(buf[P_REPORT_ID])) + TPInfo->pt[i].Pressure = (buf[p_preasure]); + else + TPInfo->pt[i].Pressure = 1; + } + else + { + printk(KERN_ERR "sis_ts_work_func: Error Touch Status\n"); + goto err_free_allocate; + } + + TPInfo->pt[i].id = (buf[pstatus + 1]); + TPInfo->pt[i].x = ((buf[px] & 0xff) | ((buf[px + 1] & 0xff)<< 8)); + TPInfo->pt[i].y = ((buf[py] & 0xff) | ((buf[py + 1] & 0xff)<< 8)); + } + +#ifdef _DEBUG_REPORT + for (i = 0; i < TPInfo->fingers; i++) + { + printk(KERN_INFO "chaoban test: i = %d, id = %d, x = %d, y = %d, pstatus = %d, width = %d, height = %d, pressure = %d, \n", i, TPInfo->pt[i].id, TPInfo->pt[i].x, TPInfo->pt[i].y, buf[pstatus], TPInfo->pt[i].Width, TPInfo->pt[i].Height, TPInfo->pt[i].Pressure); + } +#endif + +label_send_report: +/* Report co-ordinates to the multi-touch stack */ +#ifdef _ANDROID_4 + for(i = 0; ((i < TPInfo->fingers) && (i < MAX_FINGERS)); i++) + { + if(TPInfo->pt[i].Pressure) + { + TPInfo->pt[i].Width *= AREA_UNIT; + input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, TPInfo->pt[i].Width); + TPInfo->pt[i].Height *= AREA_UNIT; + input_report_abs(ts->input_dev, ABS_MT_TOUCH_MINOR, TPInfo->pt[i].Height); + input_report_abs(ts->input_dev, ABS_MT_PRESSURE, TPInfo->pt[i].Pressure); + input_report_abs(ts->input_dev, ABS_MT_POSITION_X, TPInfo->pt[i].x); + input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, TPInfo->pt[i].y); + input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, TPInfo->pt[i].id); + input_mt_sync(ts->input_dev); + all_touch_up = false; + } + + if (i == (TPInfo->fingers -1) && all_touch_up == true) + { + input_mt_sync(ts->input_dev); + } + } + + if(TPInfo->fingers == 0) + { + input_mt_sync(ts->input_dev); + } +#else + i = 0; + do + { + input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, TPInfo->pt[i].Pressure); + input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, TPInfo->pt[i].Width); + input_report_abs(ts->input_dev, ABS_MT_WIDTH_MINOR, TPInfo->pt[i].Height); + input_report_abs(ts->input_dev, ABS_MT_POSITION_X, TPInfo->pt[i].x); + input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, TPInfo->pt[i].y); + input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, TPInfo->pt[i].id); /* Android 2.3 */ + input_mt_sync(ts->input_dev); + i++; + } + while ((i < TPInfo->fingers) && (i < MAX_FINGERS)); #endif + input_sync(ts->input_dev); + +err_free_allocate: + + if (ts->use_irq) + { +/* case 1 mode */ +#ifdef _INT_MODE_1 + /*TODO: After interrupt status low, read i2c bus data by polling, until interrupt status is high */ + ret = check_gpio_interrupt(); /* interrupt pin is still LOW, read data until interrupt pin is released. */ + if (!ret) + { + hrtimer_start(&ts->timer, ktime_set(0, TIMER_NS), HRTIMER_MODE_REL); + } + else + { + if (TPInfo->pre_keybit_state) + { + ts_report_key(ts->client, 0x0); /* clear for interrupt */ + } + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + if ((ts->desc->status & IRQ_DISABLED) == IRQ_STATUS_DISABLED) +#else + if ((ts->desc->irq_data.state_use_accessors & +IRQD_IRQ_DISABLED) == IRQ_STATUS_DISABLED) #endif + { + enable_irq(ts->client->irq); + } + } +/* case 2 mode */ +#else + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + if ((ts->desc->status & IRQ_DISABLED) == IRQ_STATUS_DISABLED) #else + if ((ts->desc->irq_data.state_use_accessors & IRQD_IRQ_DISABLED) == +IRQ_STATUS_DISABLED) #endif + { + enable_irq(ts->client->irq); + } +#endif + } + + mutex_unlock(&ts->mutex_wq); + return; +} + +static void sis_tpinfo_clear(struct sisTP_driver_data *TPInfo, int max) +{ + int i = 0; + for(i = 0; i < max; i++) + { + TPInfo->pt[i].id = -1; + TPInfo->pt[i].x = 0; + TPInfo->pt[i].y = 0; + TPInfo->pt[i].Pressure = 0; + TPInfo->pt[i].Width = 0; + } + TPInfo->id = 0x0; + TPInfo->fingers = 0; +} + +static enum hrtimer_restart sis_ts_timer_func(struct hrtimer *timer) { + struct sis_ts_data *ts = container_of(timer, struct sis_ts_data, timer); + queue_work(sis_wq, &ts->work); + if (!ts->use_irq) + { /* For Polling mode */ + hrtimer_start(&ts->timer, ktime_set(0, TIMER_NS), HRTIMER_MODE_REL); + } + return HRTIMER_NORESTART; +} + +static irqreturn_t sis_ts_irq_handler(int irq, void *dev_id) { + struct sis_ts_data *ts = dev_id; + +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + if ((ts->desc->status & IRQ_DISABLED) == IRQ_STATUS_ENABLED) #else + if ((ts->desc->irq_data.state_use_accessors & IRQD_IRQ_DISABLED) == +IRQ_STATUS_ENABLED) #endif + { + disable_irq_nosync(ts->client->irq); + } + queue_work(sis_wq, &ts->work); + + return IRQ_HANDLED; +} + +static int initial_irq(void) +{ + int ret = 0; +#ifdef _I2C_INT_ENABLE + /* initialize gpio and interrupt pins */ + ret = gpio_request(GPIO_IRQ, "GPIO_133"); /* ex. GPIO_133 for interrupt mode */ + if (ret < 0) + { + /* Set Active Low. Please reference the file include/linux/interrupt.h */ + } + /* setting gpio direction here OR boardinfo file*/ + +#else + ret = -1; +#endif + return ret; +} + +uint16_t cal_crc (char* cmd, int start, int end) { + int i = 0; + uint16_t crc = 0; + + for (i = start; i <= end ; i++) + { + crc = (crc<<8) ^ crc16tab[((crc>>8) ^ cmd[i] )&0x00FF]; + } + + return crc; +} + +uint16_t cal_crc_with_cmd (char* data, int start, int end, uint8_t cmd) +{ + int i = 0; + uint16_t crc = 0; + + crc = (crc<<8) ^ crc16tab[((crc>>8) ^ cmd)&0x00FF]; + for (i = start; i <= end ; i++) + { + crc = (crc<<8) ^ crc16tab[((crc>>8) ^ data[i] )&0x00FF]; + } + + return crc; +} + +void write_crc (unsigned char *buf, int start, int end) { + uint16_t crc = 0; + + crc = cal_crc (buf, start , end); + buf[end+1] = (crc >> 8)& 0xff; + buf[end+2] = crc & 0xff; +} + +#ifdef _STD_RW_IO +#define BUFFER_SIZE MAX_BYTE +static ssize_t sis_cdev_write( struct file *file, const char __user +*buf, size_t count, loff_t *f_pos ) { + int ret = 0; + char *kdata; + char cmd; + + printk(KERN_INFO "sis_cdev_write.\n"); + + if (ts_bak == 0) + return -13; + + ret = access_ok(VERIFY_WRITE, buf, BUFFER_SIZE); + if (!ret) { + printk(KERN_ERR "cannot access user space memory\n"); + return -11; + } + + kdata = kmalloc(BUFFER_SIZE, GFP_KERNEL); + if (kdata == 0) + return -12; + + ret = copy_from_user(kdata, buf, BUFFER_SIZE); + if (ret) { + printk(KERN_ERR "copy_from_user fail\n"); + kfree(kdata); + return -14; + } +#if 0 + PrintBuffer(0, count, kdata); +#endif + + cmd = kdata[6]; + +/* Write & Read */ + ret = sis_command_for_write(ts_bak->client, count, kdata); + if (ret < 0) { + printk(KERN_ERR "i2c_transfer write error %d\n", ret); + kfree(kdata); + return -21; + } + + if ( copy_to_user((char*) buf, kdata, BUFFER_SIZE ) ) + { + printk(KERN_ERR "copy_to_user fail\n" ); + ret = -19; + } + + kfree( kdata ); + + return ret; +} + +/* for get system time */ +static ssize_t sis_cdev_read( struct file *file, char __user *buf, +size_t count, loff_t *f_pos ) { + int ret = 0; + char *kdata; + char cmd; + int i; + + printk(KERN_INFO "sis_cdev_read.\n"); + + if (ts_bak == 0) + return -13; + + ret = access_ok(VERIFY_WRITE, buf, BUFFER_SIZE); + if (!ret) { + printk(KERN_ERR "cannot access user space memory\n"); + return -11; + } + + kdata = kmalloc(BUFFER_SIZE, GFP_KERNEL); + if (kdata == 0) + return -12; + + ret = copy_from_user(kdata, buf, BUFFER_SIZE); + if (ret) { + printk(KERN_ERR "copy_from_user fail\n"); + kfree(kdata); + return -14; + } +#if 0 + PrintBuffer(0, count, kdata); +#endif + cmd = kdata[6]; + /* for making sure AP communicates with SiS driver */ + if(cmd == 0xa2) + { + kdata[0] = 5; + kdata[1] = 0; + kdata[3] = 'S'; + kdata[4] = 'i'; + kdata[5] = 'S'; + if ( copy_to_user((char*) buf, kdata, BUFFER_SIZE ) ) + { + printk(KERN_ERR "copy_to_user fail\n" ); + kfree( kdata ); + return -19; + } + + kfree( kdata ); + return 3; + } +/* Write & Read */ + ret = sis_command_for_read(ts_bak->client, MAX_BYTE, kdata); + if (ret < 0) { + printk(KERN_ERR "i2c_transfer read error %d\n", ret); + kfree(kdata); + return -21; + } + + ret = kdata[0] | (kdata[1] << 8); + + printk(KERN_INFO "%d\n", ret); + + for ( i = 0; i < ret && i < BUFFER_SIZE; i++ ) + { + printk("%02x ", kdata[i]); + } + + printk( "\n" ); + + if ( copy_to_user((char*) buf, kdata, BUFFER_SIZE ) ) + { + printk(KERN_ERR "copy_to_user fail\n" ); + ret = -19; + } + + kfree( kdata ); + + return ret; +} + +#undef BUFFER_SIZE + +static int sis_cdev_open(struct inode *inode, struct file *filp) { + printk(KERN_INFO "sis_cdev_open.\n"); + if ( ts_bak == 0 ) + return -13; + + msleep(200); + if (ts_bak->use_irq) + { +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + if ((ts_bak->desc->status & IRQ_DISABLED) == +IRQ_STATUS_ENABLED) #else + if ((ts_bak->desc->irq_data.state_use_accessors & IRQD_IRQ_DISABLED) == IRQ_STATUS_ENABLED) +#endif + { + disable_irq(ts_bak->client->irq); + } + else + { +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + printk(KERN_INFO "sis_cdev_open: IRQ_STATUS: +%x\n",(ts_bak->desc->status & IRQ_DISABLED)); #else + printk(KERN_INFO "sis_cdev_open: IRQ_STATUS: %x\n",(ts_bak->desc->irq_data.state_use_accessors & IRQD_IRQ_DISABLED)); +#endif + } + } + hrtimer_cancel(&ts_bak->timer); + + /* only flush sis_wq */ + flush_workqueue(sis_wq); + + msleep(200); + + return 0; /* success */ +} + +static int sis_cdev_release(struct inode *inode, struct file *filp) { + printk(KERN_INFO "sis_cdev_release.\n"); + + msleep(200); + + if (ts_bak == 0) + return -13; + + if (ts_bak->use_irq) + { +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + if ((ts_bak->desc->status & IRQ_DISABLED) == +IRQ_STATUS_DISABLED) #else + if ((ts_bak->desc->irq_data.state_use_accessors & IRQD_IRQ_DISABLED) == IRQ_STATUS_DISABLED) +#endif + { + enable_irq(ts_bak->client->irq); + } + } + else + hrtimer_start(&ts_bak->timer, ktime_set(1, 0), HRTIMER_MODE_REL); + + return 0; +} + +static const struct file_operations sis_cdev_fops = { + .owner = THIS_MODULE, + .read = sis_cdev_read, + .write = sis_cdev_write, + .open = sis_cdev_open, + .release= sis_cdev_release, +}; + +static int sis_setup_chardev(struct sis_ts_data *ts) { + + dev_t dev = MKDEV(sis_char_major, 0); + int alloc_ret = 0; + int cdev_err = 0; + int input_err = 0; + struct device *class_dev = NULL; + void *ptr_err; + + printk("sis_setup_chardev.\n"); + + if (ts == NULL) + { + input_err = -ENOMEM; + goto error; + } + /* dynamic allocate driver handle */ + alloc_ret = alloc_chrdev_region(&dev, 0, sis_char_devs_count, DEVICE_NAME); + if (alloc_ret) + goto error; + + sis_char_major = MAJOR(dev); + cdev_init(&sis_char_cdev, &sis_cdev_fops); + sis_char_cdev.owner = THIS_MODULE; + cdev_err = cdev_add(&sis_char_cdev, MKDEV(sis_char_major, 0), +sis_char_devs_count); + + if (cdev_err) + goto error; + + printk(KERN_INFO "%s driver(major %d) installed.\n", DEVICE_NAME, +sis_char_major); + + /* register class */ + sis_char_class = class_create(THIS_MODULE, DEVICE_NAME); + if(IS_ERR(ptr_err = sis_char_class)) + { + goto err2; + } + + class_dev = device_create(sis_char_class, NULL, MKDEV(sis_char_major, +0), NULL, DEVICE_NAME); + + if(IS_ERR(ptr_err = class_dev)) + { + goto err; + } + + return 0; +error: + if (cdev_err == 0) + cdev_del(&sis_char_cdev); + if (alloc_ret == 0) + unregister_chrdev_region(MKDEV(sis_char_major, 0), sis_char_devs_count); + if(input_err != 0) + { + printk("sis_ts_bak error!\n"); + } +err: + device_destroy(sis_char_class, MKDEV(sis_char_major, 0)); +err2: + class_destroy(sis_char_class); + return -1; +} +#endif + +static int sis_ts_probe( + struct i2c_client *client, const struct i2c_device_id *id) { + int ret = 0; + struct sis_ts_data *ts = NULL; + struct sis_i2c_rmi_platform_data *pdata = NULL; + + printk(KERN_INFO "sis_ts_probe\n"); + + TPInfo = kzalloc(sizeof(struct sisTP_driver_data), GFP_KERNEL); + if (TPInfo == NULL) + { + ret = -ENOMEM; + goto err_alloc_data_failed; + } + + ts = kzalloc(sizeof(struct sis_ts_data), GFP_KERNEL); + if (ts == NULL) + { + ret = -ENOMEM; + goto err_alloc_data_failed; + } + + ts_bak = ts; + + mutex_init(&ts->mutex_wq); + + /* 1. Init Work queue and necessary buffers */ + INIT_WORK(&ts->work, sis_ts_work_func); + ts->client = client; + i2c_set_clientdata(client, ts); + pdata = client->dev.platform_data; + + if (pdata) + ts->power = pdata->power; + if (ts->power) + { + ret = ts->power(1); + if (ret < 0) + { + printk(KERN_ERR "sis_ts_probe power on failed\n"); + goto err_power_failed; + } + } + + /* 2. Allocate input device */ + ts->input_dev = input_allocate_device(); + if (ts->input_dev == NULL) + { + ret = -ENOMEM; + printk(KERN_ERR "sis_ts_probe: Failed to allocate input device\n"); + goto err_input_dev_alloc_failed; + } + + /* This input device name should be the same to IDC file name. */ + ts->input_dev->name = "sis_touch"; + + set_bit(EV_ABS, ts->input_dev->evbit); + set_bit(EV_KEY, ts->input_dev->evbit); + set_bit(ABS_MT_POSITION_X, ts->input_dev->absbit); + set_bit(ABS_MT_POSITION_Y, ts->input_dev->absbit); + set_bit(ABS_MT_TRACKING_ID, ts->input_dev->absbit); + +#ifdef _ANDROID_4 + set_bit(INPUT_PROP_DIRECT, ts->input_dev->propbit); + set_bit(ABS_MT_PRESSURE, ts->input_dev->absbit); + set_bit(ABS_MT_TOUCH_MAJOR, ts->input_dev->absbit); + set_bit(ABS_MT_TOUCH_MINOR, ts->input_dev->absbit); + input_set_abs_params(ts->input_dev, ABS_MT_PRESSURE, 0, PRESSURE_MAX, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, AREA_LENGTH_LONGER, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MINOR, 0, AREA_LENGTH_SHORT, 0, 0); +#else + set_bit(ABS_MT_TOUCH_MAJOR, ts->input_dev->absbit); + set_bit(ABS_MT_WIDTH_MAJOR, ts->input_dev->absbit); + set_bit(ABS_MT_WIDTH_MINOR, ts->input_dev->absbit); + input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, PRESSURE_MAX, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, AREA_LENGTH_LONGER, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MINOR, 0, +AREA_LENGTH_SHORT, 0, 0); #endif + + input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, SIS_MAX_X, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, SIS_MAX_Y, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_TRACKING_ID, 0, 15, 0, + 0); + + /* add for touch keys */ + set_bit(KEY_COMPOSE, ts->input_dev->keybit); + set_bit(KEY_BACK, ts->input_dev->keybit); + set_bit(KEY_MENU, ts->input_dev->keybit); + set_bit(KEY_HOME, ts->input_dev->keybit); + + /* 3. Register input device to core */ + ret = input_register_device(ts->input_dev); + + if (ret) + { + printk(KERN_ERR "sis_ts_probe: Unable to register %s input device\n", ts->input_dev->name); + goto err_input_register_device_failed; + } + + /* 4. irq or timer setup */ + ret = initial_irq(); + if (ret < 0) + { + + } + else + { + client->irq = gpio_to_irq(GPIO_IRQ); + ret = request_irq(client->irq, sis_ts_irq_handler, IRQF_TRIGGER_FALLING, client->name, ts); + if (ret == 0) + { + ts->use_irq = 1; + } + else + { + dev_err(&client->dev, "request_irq failed\n"); + } + } + + ts->desc = irq_to_desc(ts_bak->client->irq); + + hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + ts->timer.function = sis_ts_timer_func; + + if (!ts->use_irq) + { + hrtimer_start(&ts->timer, ktime_set(1, 0), HRTIMER_MODE_REL); + } + +#ifdef CONFIG_HAS_EARLYSUSPEND + ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1; + ts->early_suspend.suspend = sis_ts_early_suspend; + ts->early_suspend.resume = sis_ts_late_resume; + register_early_suspend(&ts->early_suspend); +#endif + printk(KERN_INFO "sis_ts_probe: Start touchscreen %s in %s mode\n", +ts->input_dev->name, ts->use_irq ? "interrupt" : "polling"); + + if (ts->use_irq) + { +#ifdef _INT_MODE_1 + printk(KERN_INFO "sis_ts_probe: interrupt case 1 mode\n"); #else + printk(KERN_INFO "sis_ts_probe: interrupt case 2 mode\n"); #endif + } + +#ifdef _STD_RW_IO + ret = sis_setup_chardev(ts); + if(ret) + { + printk( KERN_INFO"sis_setup_chardev fail\n"); + } +#endif + + printk( KERN_INFO"sis SIS_SLAVE_ADDR: %d\n", SIS_SLAVE_ADDR); + + return 0; + +err_input_register_device_failed: + input_free_device(ts->input_dev); + +err_input_dev_alloc_failed: +err_power_failed: + kfree(ts); +err_alloc_data_failed: + return ret; +} + +static int sis_ts_remove(struct i2c_client *client) { + struct sis_ts_data *ts = i2c_get_clientdata(client); + +#ifdef CONFIG_HAS_EARLYSUSPEND + unregister_early_suspend(&ts->early_suspend); +#endif + if (ts->use_irq) + free_irq(client->irq, ts); + else + hrtimer_cancel(&ts->timer); + input_unregister_device(ts->input_dev); + kfree(ts); + + return 0; +} + +static int sis_ts_suspend(struct i2c_client *client, pm_message_t mesg) +{ + int ret = 0; + struct sis_ts_data *ts = i2c_get_clientdata(client); + + TPInfo->pre_keybit_state = 0x0; + + if (ts->use_irq) + { +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + if ((ts->desc->status & IRQ_DISABLED) == IRQ_STATUS_ENABLED) #else + if ((ts->desc->irq_data.state_use_accessors & IRQD_IRQ_DISABLED) == +IRQ_STATUS_ENABLED) #endif + { + disable_irq(client->irq); + } + } + else + hrtimer_cancel(&ts->timer); + /* only flush sis_wq */ + flush_workqueue(sis_wq); + + if (ts->power) { + ret = ts->power(0); + if (ret < 0) + printk(KERN_ERR "sis_ts_suspend power off failed\n"); + } + + return 0; +} + +static int sis_ts_resume(struct i2c_client *client) { + int ret = 0; + struct sis_ts_data *ts = i2c_get_clientdata(client); + + if (ts->power) + { + ret = ts->power(1); + if (ret < 0) + printk(KERN_ERR "sis_ts_resume power on failed\n"); + } + + if (ts->use_irq) + { +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) + if ((ts->desc->status & IRQ_DISABLED) == IRQ_STATUS_DISABLED) #else + if ((ts->desc->irq_data.state_use_accessors & IRQD_IRQ_DISABLED) == +IRQ_STATUS_DISABLED) #endif + { + enable_irq(client->irq); + } + } + else + hrtimer_start(&ts->timer, ktime_set(1, 0), HRTIMER_MODE_REL); + + return 0; +} + +#ifdef CONFIG_HAS_EARLYSUSPEND +static void sis_ts_early_suspend(struct early_suspend *h) { + struct sis_ts_data *ts; + + TPInfo->pre_keybit_state = 0x0; + ts = container_of(h, struct sis_ts_data, early_suspend); + sis_ts_suspend(ts->client, PMSG_SUSPEND); } + +static void sis_ts_late_resume(struct early_suspend *h) { + struct sis_ts_data *ts; + + ts = container_of(h, struct sis_ts_data, early_suspend); + sis_ts_resume(ts->client); +} +#endif + +static const struct i2c_device_id sis_ts_id[] = { + { SIS_I2C_NAME, 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, sis_ts_id); + +static struct i2c_driver sis_ts_driver = { + .probe = sis_ts_probe, + .remove = sis_ts_remove, +#ifndef CONFIG_HAS_EARLYSUSPEND + .suspend = sis_ts_suspend, + .resume = sis_ts_resume, +#endif +#ifdef CONFIG_X86 + .class = I2C_CLASS_HWMON, + .detect = sis_ts_detect, + .address_list = normal_i2c, +#endif + .id_table = sis_ts_id, + .driver = { + .name = SIS_I2C_NAME, + }, +}; + +static int __init sis_ts_init(void) +{ + printk( KERN_INFO "sis_ts_init\n" ); + + sis_wq = create_singlethread_workqueue("sis_wq"); + + if (!sis_wq) + return -ENOMEM; + + return i2c_add_driver(&sis_ts_driver); } + +#ifdef CONFIG_X86 +/* Return 0 if detection is successful, -ENODEV otherwise */ static int +sis_ts_detect(struct i2c_client *client, + struct i2c_board_info *info) +{ + const char *type_name; + + printk(KERN_INFO "sis_ts_detect\n"); + + type_name = "sis_i2c_ts"; + strlcpy(info->type, type_name, I2C_NAME_SIZE); + + return 0; +} +#endif + +static void __exit sis_ts_exit(void) +{ +#ifdef _STD_RW_IO + dev_t dev; +#endif + + printk(KERN_INFO "sis_ts_exit\n"); + + i2c_del_driver(&sis_ts_driver); + + if (sis_wq) + destroy_workqueue(sis_wq); + +#ifdef _STD_RW_IO + dev = MKDEV(sis_char_major, 0); + cdev_del(&sis_char_cdev); + unregister_chrdev_region(dev, sis_char_devs_count); + device_destroy(sis_char_class, MKDEV(sis_char_major, 0)); + class_destroy(sis_char_class); +#endif +} + +module_init(sis_ts_init); +module_exit(sis_ts_exit); +MODULE_DESCRIPTION("SiS 9200 Family Touchscreen Driver"); +MODULE_LICENSE("GPL"); diff --git a/linux-3.18.1/drivers/input/touchscreen/sis_i2c.h b/linux-3.18.1/drivers/input/touchscreen/sis_i2c.h new file mode 100644 index 0000000..c1d65c4 --- /dev/null +++ b/linux-3.18.1/drivers/input/touchscreen/sis_i2c.h @@ -0,0 +1,215 @@ +/* + * include/linux/sis_i2c.h - platform data structure for SiS 9200 +family + * + * Copyright (C) 2011 SiS, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Date: 2015/01/15 + * Version: Android_v2.05.00-A639-1113 + */ +#include + +#ifndef _LINUX_SIS_I2C_H +#define _LINUX_SIS_I2C_H + + +#define SIS_I2C_NAME "sis_i2c_ts" +#define SIS_SLAVE_ADDR 0x5c +#define TIMER_NS 10000000 //10ms +#define MAX_FINGERS 10 + + +/* For Android 4.0 */ +/* Only for Linux kernel 2.6.34 and later */ +#define _ANDROID_4 // ON/OFF + +/* For standard R/W IO*/ +#define _STD_RW_IO // ON/OFF + +/* Interrupt setting and modes */ +#define _I2C_INT_ENABLE // ON/OFF +#define GPIO_IRQ 133 + +/* Enable if use interrupt case 1 mode. */ +/* Disable if use interrupt case 2 mode. */ +//#define _INT_MODE_1 // ON/OFF + +/* IRQ STATUS */ +#if ( LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 39) ) +#define IRQ_STATUS_DISABLED 0x200 +#else +#define IRQ_STATUS_DISABLED (1<<16) +#endif +#define IRQ_STATUS_ENABLED 0x0 + +/* Resolution mode */ +// Constant value +#define SIS_MAX_X 4095 +#define SIS_MAX_Y 4095 + +#define ONE_BYTE 1 +#define FIVE_BYTE 5 +#define EIGHT_BYTE 8 +#define SIXTEEN_BYTE 16 +#define PACKET_BUFFER_SIZE 128 + +#define SIS_CMD_NORMAL 0x0 +#define SIS_CMD_SOFTRESET 0x82 +#define SIS_CMD_RECALIBRATE 0x87 +#define SIS_CMD_POWERMODE 0x90 +#define MSK_TOUCHNUM 0x0f +#define MSK_HAS_CRC 0x10 +#define MSK_DATAFMT 0xe0 +#define MSK_PSTATE 0x0f +#define MSK_PID 0xf0 +#define RES_FMT 0x00 +#define FIX_FMT 0x40 + +/* for new i2c format */ +#define TOUCHDOWN 0x3 +#define TOUCHUP 0x0 +#define MAX_BYTE 64 +#define PRESSURE_MAX 255 + +#ifdef _ANDROID_4 +#define AREA_LENGTH_LONGER 5792 //Resolution diagonal +#define AREA_LENGTH_SHORT 5792 // ((SIS_MAX_X^2) + (SIS_MAX_Y^2))^0.5 +#define AREA_UNIT (5792/32) +#else +#define AREA_LENGTH_LONGER 31 +#define AREA_LENGTH_SHORT 31 +#endif + + +#define FORMAT_MODE 1 + +#define MSK_NOBTN 0 +#define MSK_COMP 1 +#define MSK_BACK 2 +#define MSK_MENU 4 +#define MSK_HOME 8 + +#define P_BYTECOUNT 0 +#define ALL_IN_ONE_PACKAGE 0x10 +#define IS_TOUCH(x) (x & 0x1) +#define IS_HIDI2C(x) (x & 0x6) +#define IS_AREA(x) ((x >> 4) & 0x1) +#define IS_PRESSURE(x) ((x >> 5) & 0x1) +#define IS_SCANTIME(x) ((x >> 6) & 0x1) +//#define _DEBUG_PACKAGE // ON/OFF +//#define _DEBUG_REPORT // ON/OFF +#define NORMAL_LEN_PER_POINT 6 +#define AREA_LEN_PER_POINT 2 +#define PRESSURE_LEN_PER_POINT 1 + +//#define _CHECK_CRC // ON/OFF +//#define _SUPPORT_BUTTON_TOUCH // ON/OFF +#define TOUCH_FORMAT 0x1 +#define BUTTON_FORMAT 0x4 +#define HIDI2C_FORMAT 0x6 +#define P_REPORT_ID 2 +#define BUTTON_STATE 3 +#define BUTTON_KEY_COUNT 16 +#define BYTE_BYTECOUNT 2 +#define BYTE_COUNT 1 +#define BYTE_ReportID 1 +#define BYTE_CRC_HIDI2C 0 +#define BYTE_CRC_I2C 2 +#define BYTE_SCANTIME 2 +#define NO_TOUCH_BYTECOUNT 0x3 + +/* TODO */ +#define TOUCH_POWER_PIN 0 +#define TOUCH_RESET_PIN 1 + +/* CMD Define */ +#define BUF_ACK_PLACE_L 4 +#define BUF_ACK_PLACE_H 5 +#define BUF_ACK_L 0xEF +#define BUF_ACK_H 0xBE +#define BUF_NACK_L 0xAD +#define BUF_NACK_H 0xDE +#define BUF_CRC_PLACE 7 + + + +struct sis_i2c_rmi_platform_data { + int (*power)(int on); /* Only valid in first array entry */ +}; + +static const unsigned short crc16tab[256]= { + 0x0000,0x1021,0x2042,0x3063,0x4084,0x50a5,0x60c6,0x70e7, + 0x8108,0x9129,0xa14a,0xb16b,0xc18c,0xd1ad,0xe1ce,0xf1ef, + 0x1231,0x0210,0x3273,0x2252,0x52b5,0x4294,0x72f7,0x62d6, + 0x9339,0x8318,0xb37b,0xa35a,0xd3bd,0xc39c,0xf3ff,0xe3de, + 0x2462,0x3443,0x0420,0x1401,0x64e6,0x74c7,0x44a4,0x5485, + 0xa56a,0xb54b,0x8528,0x9509,0xe5ee,0xf5cf,0xc5ac,0xd58d, + 0x3653,0x2672,0x1611,0x0630,0x76d7,0x66f6,0x5695,0x46b4, + 0xb75b,0xa77a,0x9719,0x8738,0xf7df,0xe7fe,0xd79d,0xc7bc, + 0x48c4,0x58e5,0x6886,0x78a7,0x0840,0x1861,0x2802,0x3823, + 0xc9cc,0xd9ed,0xe98e,0xf9af,0x8948,0x9969,0xa90a,0xb92b, + 0x5af5,0x4ad4,0x7ab7,0x6a96,0x1a71,0x0a50,0x3a33,0x2a12, + 0xdbfd,0xcbdc,0xfbbf,0xeb9e,0x9b79,0x8b58,0xbb3b,0xab1a, + 0x6ca6,0x7c87,0x4ce4,0x5cc5,0x2c22,0x3c03,0x0c60,0x1c41, + 0xedae,0xfd8f,0xcdec,0xddcd,0xad2a,0xbd0b,0x8d68,0x9d49, + 0x7e97,0x6eb6,0x5ed5,0x4ef4,0x3e13,0x2e32,0x1e51,0x0e70, + 0xff9f,0xefbe,0xdfdd,0xcffc,0xbf1b,0xaf3a,0x9f59,0x8f78, + 0x9188,0x81a9,0xb1ca,0xa1eb,0xd10c,0xc12d,0xf14e,0xe16f, + 0x1080,0x00a1,0x30c2,0x20e3,0x5004,0x4025,0x7046,0x6067, + 0x83b9,0x9398,0xa3fb,0xb3da,0xc33d,0xd31c,0xe37f,0xf35e, + 0x02b1,0x1290,0x22f3,0x32d2,0x4235,0x5214,0x6277,0x7256, + 0xb5ea,0xa5cb,0x95a8,0x8589,0xf56e,0xe54f,0xd52c,0xc50d, + 0x34e2,0x24c3,0x14a0,0x0481,0x7466,0x6447,0x5424,0x4405, + 0xa7db,0xb7fa,0x8799,0x97b8,0xe75f,0xf77e,0xc71d,0xd73c, + 0x26d3,0x36f2,0x0691,0x16b0,0x6657,0x7676,0x4615,0x5634, + 0xd94c,0xc96d,0xf90e,0xe92f,0x99c8,0x89e9,0xb98a,0xa9ab, + 0x5844,0x4865,0x7806,0x6827,0x18c0,0x08e1,0x3882,0x28a3, + 0xcb7d,0xdb5c,0xeb3f,0xfb1e,0x8bf9,0x9bd8,0xabbb,0xbb9a, + 0x4a75,0x5a54,0x6a37,0x7a16,0x0af1,0x1ad0,0x2ab3,0x3a92, + 0xfd2e,0xed0f,0xdd6c,0xcd4d,0xbdaa,0xad8b,0x9de8,0x8dc9, + 0x7c26,0x6c07,0x5c64,0x4c45,0x3ca2,0x2c83,0x1ce0,0x0cc1, + 0xef1f,0xff3e,0xcf5d,0xdf7c,0xaf9b,0xbfba,0x8fd9,0x9ff8, + 0x6e17,0x7e36,0x4e55,0x5e74,0x2e93,0x3eb2,0x0ed1,0x1ef0 +}; + +struct Point { + int id; + unsigned short x, y; // uint16_t ? + uint16_t Pressure; + uint16_t Width; + uint16_t Height; +}; + +struct sisTP_driver_data { + int id; + int fingers; + uint8_t pre_keybit_state; + struct Point pt[MAX_FINGERS]; +}; + +struct sis_ts_data { + int (*power)(int on); + int use_irq; + struct i2c_client *client; + struct input_dev *input_dev; + struct hrtimer timer; + struct irq_desc *desc; + struct work_struct work; + struct mutex mutex_wq; +#ifdef CONFIG_HAS_EARLYSUSPEND + struct early_suspend early_suspend; +#endif +}; + +static int sis_ts_suspend(struct i2c_client *client, pm_message_t +mesg); static int sis_ts_resume(struct i2c_client *client); + +#endif /* _LINUX_SIS_I2C_H */ {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I