#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/gpio.h>
+#include <linux/types.h>
#include <mach/iomux.h>
#include <linux/platform_device.h>
-
+#include <linux/kthread.h>
+#include <linux/sched.h>
+#include <linux/irq.h>
+#include <linux/cdev.h>
+#include <asm/uaccess.h>
+#include <linux/proc_fs.h>
+#include <linux/input/mt.h>
#include "ili2102_ts.h"
+static int ts_dbg_enable = 0;
-#if 1
- #define DBG(msg...) printk(msg);
-#else
- #define DBG(msg...)
-#endif
-
+#define DBG(msg...) \
+ ({if(ts_dbg_enable == 1) printk(msg);})
+
#define TOUCH_NUMBER 2
-static int touch_state[TOUCH_NUMBER] = {TOUCH_UP,TOUCH_UP};
-static struct workqueue_struct *ili2102_wq;
+static volatile int touch_state[TOUCH_NUMBER] = {TOUCH_UP,TOUCH_UP};
+static volatile unsigned int g_x[TOUCH_NUMBER] = {0},g_y[TOUCH_NUMBER] = {0};
struct ili2102_ts_data {
u16 model; /* 801. */
bool swap_xy; /* swap x and y axes */
u16 x_min, x_max;
u16 y_min, y_max;
- uint16_t addr;
- int use_irq;
+ uint16_t addr;
+ int use_irq;
+ int pendown;
int gpio_pendown;
int gpio_reset;
int gpio_reset_active_low;
char resetpin_iomux_name[IOMUX_NAME_SIZE];
char phys[32];
char name[32];
- struct i2c_client *client;
- struct input_dev *input_dev;
- struct hrtimer timer;
- struct work_struct work;
- struct early_suspend early_suspend;
+ int valid_i2c_register;
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ struct hrtimer timer;
+ struct delayed_work work;
+ struct workqueue_struct *ts_wq;
+ struct early_suspend early_suspend;
};
#ifdef CONFIG_HAS_EARLYSUSPEND
static void ili2102_ts_late_resume(struct early_suspend *h);
#endif
-static int verify_coord(struct ili2102_ts_data *ts,unsigned int *x,unsigned int *y)
+#define ILI2102_TS_APK_SUPPORT 1
+
+#if ILI2102_TS_APK_SUPPORT
+// device data
+struct dev_data {
+ // device number
+ dev_t devno;
+ // character device
+ struct cdev cdev;
+ // class device
+ struct class *class;
+};
+
+// global variables
+static struct ili2102_ts_data *g_ts;
+static struct dev_data g_dev;
+
+// definitions
+#define ILITEK_I2C_RETRY_COUNT 3
+#define ILITEK_FILE_DRIVER_NAME "ilitek_file"
+#define ILITEK_DEBUG_LEVEL KERN_INFO
+#define ILITEK_ERROR_LEVEL KERN_ALERT
+
+// i2c command for ilitek touch screen
+#define ILITEK_TP_CMD_READ_DATA 0x10
+#define ILITEK_TP_CMD_READ_SUB_DATA 0x11
+#define ILITEK_TP_CMD_GET_RESOLUTION 0x20
+#define ILITEK_TP_CMD_GET_FIRMWARE_VERSION 0x40
+#define ILITEK_TP_CMD_GET_PROTOCOL_VERSION 0x42
+#define ILITEK_TP_CMD_CALIBRATION 0xCC
+#define ILITEK_TP_CMD_ERASE_BACKGROUND 0xCE
+
+// define the application command
+#define ILITEK_IOCTL_BASE 100
+#define ILITEK_IOCTL_I2C_WRITE_DATA _IOWR(ILITEK_IOCTL_BASE, 0, unsigned char*)
+#define ILITEK_IOCTL_I2C_WRITE_LENGTH _IOWR(ILITEK_IOCTL_BASE, 1, int)
+#define ILITEK_IOCTL_I2C_READ_DATA _IOWR(ILITEK_IOCTL_BASE, 2, unsigned char*)
+#define ILITEK_IOCTL_I2C_READ_LENGTH _IOWR(ILITEK_IOCTL_BASE, 3, int)
+#define ILITEK_IOCTL_USB_WRITE_DATA _IOWR(ILITEK_IOCTL_BASE, 4, unsigned char*)
+#define ILITEK_IOCTL_USB_WRITE_LENGTH _IOWR(ILITEK_IOCTL_BASE, 5, int)
+#define ILITEK_IOCTL_USB_READ_DATA _IOWR(ILITEK_IOCTL_BASE, 6, unsigned char*)
+#define ILITEK_IOCTL_USB_READ_LENGTH _IOWR(ILITEK_IOCTL_BASE, 7, int)
+#define ILITEK_IOCTL_I2C_UPDATE_RESOLUTION _IOWR(ILITEK_IOCTL_BASE, 8, int)
+#define ILITEK_IOCTL_USB_UPDATE_RESOLUTION _IOWR(ILITEK_IOCTL_BASE, 9, int)
+#define ILITEK_IOCTL_I2C_SET_ADDRESS _IOWR(ILITEK_IOCTL_BASE, 10, int)
+#define ILITEK_IOCTL_I2C_UPDATE _IOWR(ILITEK_IOCTL_BASE, 11, int)
+#define ILITEK_IOCTL_STOP_READ_DATA _IOWR(ILITEK_IOCTL_BASE, 12, int)
+#define ILITEK_IOCTL_START_READ_DATA _IOWR(ILITEK_IOCTL_BASE, 13, int)
+
+
+static ssize_t ili2102_proc_write(struct file *file, const char __user *buffer,
+ unsigned long count, void *data)
{
+ char c;
+ int rc;
+
+ rc = get_user(c, buffer);
+ if (rc)
+ return rc;
+
+ if (c == '1')
+ ts_dbg_enable = 1;
+ else if (c == '0')
+ ts_dbg_enable = 0;
- DBG("%s:(%d/%d)\n",__FUNCTION__,*x, *y);
- if((*x< ts->x_min) || (*x > ts->x_max))
+ return count;
+}
+
+static const struct file_operations ili2102_proc_fops = {
+ .owner = THIS_MODULE,
+ .write = ili2102_proc_write,
+};
+
+static int ilitek_file_open(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+static ssize_t ilitek_file_write(struct file *filp, const char *buf, size_t count, loff_t *f_pos)
+{
+ int ret;
+ unsigned char buffer[128]={0};
+ struct i2c_msg msg[2];
+
+ msg[0].addr = g_ts->client->addr;
+ msg[0].flags = g_ts->client->flags;
+ msg[0].len = count;
+ msg[0].buf = buffer;
+ msg[0].scl_rate = 400*1000;
+ msg[0].udelay = 80;
+
+ DBG("%s:count=0x%x\n",__FUNCTION__,count);
+
+ // before sending data to touch device, we need to check whether the device is working or not
+ if(g_ts->valid_i2c_register == 0){
+ printk(ILITEK_ERROR_LEVEL "%s, i2c device driver doesn't be registered\n", __func__);
return -1;
+ }
- if((*y< ts->y_min) || (*y > ts->y_max))
+ // check the buffer size whether it exceeds the local buffer size or not
+ if(count > 128){
+ printk(ILITEK_ERROR_LEVEL "%s, buffer exceed 128 bytes\n", __func__);
return -1;
+ }
- return 0;
+ // copy data from user space
+ ret = copy_from_user(buffer, buf, count-1);
+ if(ret < 0){
+ printk(ILITEK_ERROR_LEVEL "%s, copy data from user space, failed", __func__);
+ return -1;
+ }
+
+ // parsing command
+ if(strcmp(buffer, "calibrate") == 0){
+ buffer[0] = ILITEK_TP_CMD_ERASE_BACKGROUND;
+ msg[0].len = 1;
+ ret = i2c_transfer(g_ts->client->adapter, msg, 1);
+ if(ret < 0){
+ printk(ILITEK_DEBUG_LEVEL "%s, i2c erase background, failed\n", __func__);
+ }
+ else{
+ printk(ILITEK_DEBUG_LEVEL "%s, i2c erase background, success\n", __func__);
+ }
+
+ buffer[0] = ILITEK_TP_CMD_CALIBRATION;
+ msg[0].len = 1;
+ msleep(2000);
+ ret = i2c_transfer(g_ts->client->adapter, msg, 1);
+ if(ret < 0){
+ printk(ILITEK_DEBUG_LEVEL "%s, i2c calibration, failed\n", __func__);
+ }
+ else{
+ printk(ILITEK_DEBUG_LEVEL "%s, i2c calibration, success\n", __func__);
+ }
+ msleep(1000);
+ return count;
+ }
+ return -1;
}
-static int ili2102_init_panel(struct ili2102_ts_data *ts)
+
+
+//static int ilitek_file_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg)
+long ilitek_file_ioctl (struct file *filp, unsigned int cmd, unsigned long arg)
+
{
- return 0;
+ static unsigned char buffer[64]={0};
+ static int len=0;
+ int ret;
+ struct i2c_msg msg[2];
+
+ msg[0].addr = g_ts->client->addr;
+ msg[0].flags = g_ts->client->flags;
+ msg[0].len = len;
+ msg[0].buf = buffer;
+ msg[0].scl_rate = 400*1000;
+ msg[0].udelay = 80;
+
+ // parsing ioctl command
+ switch(cmd){
+ case ILITEK_IOCTL_I2C_WRITE_DATA:
+ ret = copy_from_user(buffer, (unsigned char*)arg, len);
+ if(ret < 0){
+ printk(ILITEK_ERROR_LEVEL "%s, copy data from user space, failed\n", __func__);
+ return -1;
+ }
+ ret = i2c_transfer(g_ts->client->adapter, msg, 1);
+ if(ret < 0){
+ printk(ILITEK_ERROR_LEVEL "%s, i2c write, failed\n", __func__);
+ return -1;
+ }
+ break;
+
+ case ILITEK_IOCTL_I2C_READ_DATA:
+ msg[0].addr = g_ts->client->addr;
+ msg[0].flags = g_ts->client->flags | I2C_M_RD;
+ msg[0].len = len;
+ msg[0].buf = buffer;
+ msg[0].scl_rate = 400*1000;
+ msg[0].udelay = 80;
+ ret = i2c_transfer(g_ts->client->adapter, msg, 1);
+ if(ret < 0){
+ printk(ILITEK_ERROR_LEVEL "%s, i2c read, failed\n", __func__);
+ return -1;
+ }
+ ret = copy_to_user((unsigned char*)arg, buffer, len);
+ if(ret < 0){
+ printk(ILITEK_ERROR_LEVEL "%s, copy data to user space, failed\n", __func__);
+ return -1;
+ }
+ break;
+ case ILITEK_IOCTL_I2C_WRITE_LENGTH:
+ case ILITEK_IOCTL_I2C_READ_LENGTH:
+ len = arg;
+ break;
+ case ILITEK_IOCTL_I2C_UPDATE_RESOLUTION:
+ case ILITEK_IOCTL_I2C_SET_ADDRESS:
+ case ILITEK_IOCTL_I2C_UPDATE:
+ break;
+ case ILITEK_IOCTL_START_READ_DATA:
+ //g_ts.stop_polling = 0;
+ break;
+ case ILITEK_IOCTL_STOP_READ_DATA:
+ //g_ts.stop_polling = 1;
+ break;
+ default:
+ return -1;
+ }
+
+ DBG("%s:cmd=0x%x\n",__FUNCTION__,cmd);
+
+ return 0;
}
-static void ili2102_test(struct i2c_client *client)
+
+
+static ssize_t ilitek_file_read(struct file *filp, char *buf, size_t count, loff_t *f_pos)
{
- int i;
- int ret;
- struct i2c_msg msg[2];
- uint8_t start_reg;
- uint8_t buf[4];
+ return 0;
+}
- start_reg = 0x31;
- msg[0].addr =client->addr;
- msg[0].flags = 0;
- msg[0].len = 1;
- msg[0].buf = &start_reg;
-
- msg[1].addr = client->addr;
- msg[1].flags = I2C_M_RD;
- msg[1].len = 3;
- msg[1].buf = buf;
+static int ilitek_file_close(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
-
- ret = i2c_transfer(client->adapter, msg, 2);
-
- if (ret < 0) {
- printk("ili2102_test:i2c_transfer fail =%d\n",ret);
- }
- for(i=0; i<3; i++){
- printk("ili2102_test:buf[%d]=%x\n", i, buf[i]);
- }
-
+// declare file operations
+struct file_operations ilitek_fops = {
+ .unlocked_ioctl = ilitek_file_ioctl,
+ .read = ilitek_file_read,
+ .write = ilitek_file_write,
+ .open = ilitek_file_open,
+ .release = ilitek_file_close,
+};
+#endif
+static int verify_coord(struct ili2102_ts_data *ts,unsigned int *x,unsigned int *y)
+{
+
+ //DBG("%s:(%d/%d)\n",__FUNCTION__,*x, *y);
+ #ifndef CONFIG_MACH_RK29_TD8801_V2
+ if((*x< ts->x_min) || (*x > ts->x_max))
+ return -1;
+
+ if((*y< ts->y_min) || (*y > ts->y_max))
+ return -1;
+ #endif
+
+ /*android do not support min and max value*/
+ if(*x == ts->x_min)
+ *x = ts->x_min + 1;
+ if(*y == ts->y_min)
+ *y = ts->y_min + 1;
+ if(*x == ts->x_max)
+ *x = ts->x_max - 1;
+ if(*y == ts->y_max)
+ *y = ts->y_max - 1;
+
+ return 0;
}
+static int ili2102_init_panel(struct ili2102_ts_data *ts)
+{
+ gpio_set_value(ts->gpio_reset, ts->gpio_reset_active_low? GPIO_LOW:GPIO_HIGH);
+ mdelay(1);
+ gpio_set_value(ts->gpio_reset, ts->gpio_reset_active_low? GPIO_HIGH:GPIO_LOW);
+ return 0;
+}
+
static void ili2102_ts_work_func(struct work_struct *work)
{
- int i,ret;
- int syn_flag = 0;
- unsigned int x, y;
- struct i2c_msg msg[2];
- uint8_t start_reg;
- uint32_t buf[4];
- struct ili2102_ts_data *ts = container_of(work, struct ili2102_ts_data, work);
-
+ int i,ret,num=1;
+ int syn_flag = 0;
+ unsigned int x, y;
+ struct i2c_msg msg[2];
+ uint8_t start_reg;
+ uint8_t buf[9];//uint32_t buf[4];
+ struct ili2102_ts_data *ts = container_of(work, struct ili2102_ts_data, work);
+
DBG("ili2102_ts_work_func\n");
-
- start_reg = 0x86;
- msg[0].addr = ts->client->addr;
- msg[0].flags = 0;
- msg[0].len = 1;
- msg[0].buf = &start_reg;
-
- msg[1].addr = ts->client->addr;
- msg[1].flags = I2C_M_RD;
- msg[1].len = 4 * TOUCH_NUMBER;
- msg[1].buf = (u8*)&buf[0];
+ /*Touch Information Report*/
+ start_reg = 0x10;
- ret = i2c_transfer(ts->client->adapter, msg, 2);
-
- if (ret < 0) {
- for(i=0; i<TOUCH_NUMBER; i++) buf[i] = 0xffffffff;
- printk("ili2102_ts_work_func:i2c_transfer fail =%d\n",ret);
- }
+ msg[0].addr = ts->client->addr;
+ msg[0].flags = ts->client->flags;
+ msg[0].len = 1;
+ msg[0].buf = &start_reg;
+ msg[0].scl_rate = 200*1000;
+ msg[0].udelay = 200;
+
+ msg[1].addr = ts->client->addr;
+ msg[1].flags = ts->client->flags | I2C_M_RD;
+ msg[1].len = 9;
+ msg[1].buf = buf;
+ msg[1].scl_rate = 200*1000;
+ msg[1].udelay = 0;
+
+ ret = i2c_transfer(ts->client->adapter, msg, 2);
+ if (ret < 0)
+ {
+ printk("%s:i2c_transfer fail, ret=%d\n",__FUNCTION__,ret);
+ goto out;
+ }
+
+ for(i=0; i<TOUCH_NUMBER; i++)
+ {
+
+ if(!((buf[0]>>i)&0x01))
+ {
+ if (touch_state[i] == TOUCH_DOWN)
+ {
+ DBG("ili2102_ts_work_func:buf[%d]=%d\n",i,buf[i]);
+ //input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
+ //input_report_abs(ts->input_dev, ABS_MT_PRESSURE, 0);
+ input_mt_slot(ts->input_dev, i);
+ input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);
+ syn_flag = 1;
+ touch_state[i] = TOUCH_UP;
+ DBG("i=%d,touch_up \n",i);
+ }
- for(i=0; i<TOUCH_NUMBER; i++){
- if(buf[i] == 0xffffffff || buf[i] == 0){
- if (touch_state[i] == TOUCH_DOWN)
- {
- DBG("ili2102_ts_work_func:buf[%d]=%d\n",i,buf[i]);
- input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0); //Finger Size
- input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0); //Touch Size
- input_mt_sync(ts->input_dev);
- syn_flag = 1;
- touch_state[i] = TOUCH_UP;
}
-
- }
- else{
- x = ((buf[i] & 0xff) << 8) | ((buf[i] & 0xff00) >> 8);
- y = ((buf[i] & 0xff0000) >> 8) | ((buf[i] & 0xff000000) >> 24);
-
- if (ts->swap_xy)
- swap(x, y);
-
- if (verify_coord(ts,&x,&y))
- goto out;
-
- DBG("buf[%d]=%x X = %d, Y = %d\n", i, buf[i], x, y);
-
- input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 1); //Finger Size
- input_report_abs(ts->input_dev, ABS_MT_POSITION_X, x);
- input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, y);
- input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 5); //Touch Size
- input_mt_sync(ts->input_dev);
- syn_flag = 1;
- touch_state[i] = TOUCH_DOWN;
- }
- }
+ else
+ {
+ if((buf[0]>>i)&0x01)
+ {
+ x = buf[1+(i<<2)] | (buf[2+(i<<2)] << 8);
+ y = buf[3+(i<<2)] | (buf[4+(i<<2)] << 8);
+
+ if (ts->swap_xy)
+ swap(x, y);
+
+ if (verify_coord(ts,&x,&y))//goto out;
+ {
+ printk("err:x=%d,y=%d\n",x,y);
+ x = g_x[i];
+ y = g_y[i];
+ }
+ g_x[i] = x;
+ g_y[i] = y;
+
+ input_mt_slot(ts->input_dev, i);
+ input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
+ input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 1);
+ //input_report_abs(ts->input_dev, ABS_MT_PRESSURE, 100);
+ input_report_abs(ts->input_dev, ABS_MT_POSITION_X, x);
+ input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, y);
+
+ syn_flag = 1;
+ touch_state[i] = TOUCH_DOWN;
+ ts->pendown = 1;
+ DBG("touch_down i=%d X = %d, Y = %d\n",i, x, y);
+ }
+
+ }
+ }
if(syn_flag)
- input_sync(ts->input_dev);
+ input_sync(ts->input_dev);
out:
-
- if (ts->use_irq)
+#if 0
+ if(ts->pendown)
+ {
+ schedule_delayed_work(&ts->work, msecs_to_jiffies(12));
+ ts->pendown = 0;
+ }
+ else
+ {
+ if (ts->use_irq)
enable_irq(ts->client->irq);
-
- return;
-}
-
-static enum hrtimer_restart ili2102_ts_timer_func(struct hrtimer *timer)
-{
- struct ili2102_ts_data *ts = container_of(timer, struct ili2102_ts_data, timer);
- DBG("ili2102_ts_timer_func\n");
-
- queue_work(ili2102_wq, &ts->work);
+ }
+#else
+ enable_irq(ts->client->irq);//intterupt pin will be high after i2c read so could enable irq at once
+#endif
+ DBG("pin=%d,level=%d,irq=%d\n\n",irq_to_gpio(ts->client->irq),gpio_get_value(irq_to_gpio(ts->client->irq)),ts->client->irq);
- hrtimer_start(&ts->timer, ktime_set(0, 12500000), HRTIMER_MODE_REL);
- return HRTIMER_NORESTART;
}
static irqreturn_t ili2102_ts_irq_handler(int irq, void *dev_id)
{
- struct ili2102_ts_data *ts = dev_id;
+ struct ili2102_ts_data *ts = dev_id;
DBG("ili2102_ts_irq_handler=%d,%d\n",ts->client->irq,ts->use_irq);
-
- //if (ts->use_irq)
- disable_irq_nosync(ts->client->irq); //disable_irq(ts->client->irq);
- queue_work(ili2102_wq, &ts->work);
- return IRQ_HANDLED;
+
+ disable_irq_nosync(ts->client->irq); //disable_irq(ts->client->irq);
+ queue_delayed_work(ts->ts_wq, &ts->work, 0);
+ return IRQ_HANDLED;
}
static int __devinit setup_resetPin(struct i2c_client *client, struct ili2102_ts_data *ts)
return -EINVAL;
}
- rk29_mux_api_set(ts->resetpin_iomux_name,ts->resetpin_iomux_mode);
+ rk29_mux_api_set(ts->resetpin_iomux_name,ts->resetpin_iomux_mode);
err = gpio_request(ts->gpio_reset, "ili2102_resetPin");
if (err) {
dev_err(&client->dev, "failed to request resetPin GPIO%d\n",
return err;
}
- gpio_set_value(ts->gpio_reset, ts->gpio_reset_active_low? GPIO_LOW:GPIO_HIGH);
+ //gpio_direction_output(ts->gpio_reset, ts->gpio_reset_active_low? GPIO_HIGH:GPIO_LOW);
err = gpio_direction_output(ts->gpio_reset, ts->gpio_reset_active_low? GPIO_LOW:GPIO_HIGH);
if (err) {
- dev_err(&client->dev, "failed to pulldown resetPin GPIO%d\n",
+ dev_err(&client->dev, "failed to set resetPin GPIO%d\n",
ts->gpio_reset);
gpio_free(ts->gpio_reset);
return err;
}
- mdelay(100);
+ mdelay(5);
gpio_set_value(ts->gpio_reset, ts->gpio_reset_active_low? GPIO_HIGH:GPIO_LOW);
- mdelay(100);
+ mdelay(200);
return 0;
}
return -EINVAL;
}
- rk29_mux_api_set(ts->pendown_iomux_name,ts->pendown_iomux_mode);
+ rk29_mux_api_set(ts->pendown_iomux_name,ts->pendown_iomux_mode);
err = gpio_request(ts->gpio_pendown, "ili2102_pendown");
if (err) {
dev_err(&client->dev, "failed to request pendown GPIO%d\n",
return err;
}
- err = gpio_pull_updown(ts->gpio_pendown, GPIOPullUp);
+ err = gpio_pull_updown(ts->gpio_pendown, PullDisable);
if (err) {
dev_err(&client->dev, "failed to pullup pendown GPIO%d\n",
ts->gpio_pendown);
}
return 0;
}
-static int ili2102_chip_Init(struct i2c_client *client)
-{
- uint8_t buf0[6];
- int ret = 0;
-
-#if (0)
- /* = */
- buf0[0] = 0x71;
- buf0[1] = 0x00;//30MHz
- buf0[2] = 0x01;
- buf0[3] = 0x07;
- buf0[4] = 0x0D;
- buf0[5] = 0x00;
-
- ret = i2c_master_send(client, buf0, 6);
- if(ret < 0) {
- printk(KERN_ERR "i2c_master_send failed\n");
- }
- /* = */
- buf0[0] = 0x76;
- buf0[1] = 0x01;
- buf0[2] = 0x1B;
- ret = i2c_master_send(client, buf0, 3);
- if(ret < 0) {
- printk(KERN_ERR "i2c_master_send failed\n");
- }
-#endif /* (0) */
-
+static int ili2102_chip_Init(struct i2c_client *client)
+{
+ int ret = 0;
+ uint8_t start_reg;
+ uint8_t buf[6];
+ struct i2c_msg msg[2];
+
+ /* get panel information:6bytes */
+ start_reg = 0x20;
+ msg[0].addr =client->addr;
+ msg[0].flags = client->flags;
+ msg[0].len = 1;
+ msg[0].buf = &start_reg;
+ msg[0].scl_rate = 400*1000;
+ msg[0].udelay = 200;
+
+ ret = i2c_transfer(client->adapter, msg, 1);
+ if (ret < 0) {
+ printk("%s:err\n",__FUNCTION__);
+ }
+
+ mdelay(5);//tp need delay
+
+ msg[0].addr = client->addr;
+ msg[0].flags = client->flags |I2C_M_RD;
+ msg[0].len = 6;
+ msg[0].buf = (u8*)&buf[0];
+ msg[0].scl_rate = 400*1000;
+ msg[0].udelay = 200;
+
+ ret = i2c_transfer(client->adapter, msg, 1);
+ if (ret < 0) {
+ printk("%s:err\n",__FUNCTION__);
+ }
- /* IC internal power on */
- buf0[0] = 0x81;
- ret = i2c_master_send(client, buf0, 1);
- if(ret < 0) {
- printk(KERN_ERR "i2c_master_send failed\n");
- }
-
- msleep(120);
-
- /* MCU power on */
- buf0[0] = 0x35;
- buf0[1] = 0x02;
- ret = i2c_master_send(client, buf0, 2);
- if(ret < 0) {
- printk(KERN_ERR "i2c_master_send failed\n");
- }
-
- msleep(10);
-
- /* flash power on */
- buf0[0] = 0x36;
- buf0[1] = 0x01;
- ret = i2c_master_send(client, buf0, 2);
- if(ret < 0) {
- printk(KERN_ERR "i2c_master_send failed\n");
- }
-
- msleep(10);
+ printk("%s:max_x=%d,max_y=%d,b[4]=0x%x,b[5]=0x%x\n",
+ __FUNCTION__,buf[0]|(buf[1]<<8),buf[2]|(buf[3]<<8),buf[4],buf[5]);
+
+ /*get firmware version:3bytes */
+ start_reg = 0x40;
+ msg[0].addr =client->addr;
+ msg[0].flags = client->flags;
+ msg[0].len = 1;
+ msg[0].buf = &start_reg;
+ msg[0].scl_rate = 400*1000;
+ msg[0].udelay = 200;
+
+ ret = i2c_transfer(client->adapter, msg, 1);
+ if (ret < 0) {
+ printk("%s:err\n",__FUNCTION__);
+ }
- ili2102_test(client);
- msleep(10);
+ mdelay(5);//tp need delay
- /* Start touch panel sensing */
- buf0[0] = 0x83;
- ret = i2c_master_send(client, buf0, 1);
- if(ret < 0) {
- printk(KERN_ERR "i2c_master_send failed\n");
- }
+ msg[0].addr = client->addr;
+ msg[0].flags = client->flags | I2C_M_RD;
+ msg[0].len = 3;
+ msg[0].buf = (u8*)&buf[0];
+ msg[0].scl_rate =400*1000;
+ msg[0].udelay = 200;
+
+ ret = i2c_transfer(client->adapter, msg, 1);
+ if (ret < 0) {
+ printk("%s:err\n",__FUNCTION__);
+ }
+
+ printk("%s:Ver %d.%d.%d\n",__FUNCTION__,buf[0],buf[1],buf[2]);
- msleep(120);
-
return ret;
+
}
+
static int ili2102_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
- struct ili2102_ts_data *ts;
+ struct ili2102_ts_data *ts;
struct ili2102_platform_data *pdata = client->dev.platform_data;
- int ret = 0;
+ int ret = 0;
- printk("ili2102 TS probe\n"); //[Step 1]
+ printk("ili2102 TS probe\n");
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
- printk(KERN_ERR "ili2102_ts_probe: need I2C_FUNC_I2C\n");
- ret = -ENODEV;
- goto err_check_functionality_failed;
- }
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ printk(KERN_ERR "ili2102_ts_probe: need I2C_FUNC_I2C\n");
+ ret = -ENODEV;
+ goto err_check_functionality_failed;
+ }
- ts = kzalloc(sizeof(*ts), GFP_KERNEL);
- if (ts == NULL) {
- ret = -ENOMEM;
- goto err_alloc_data_failed;
- }
- INIT_WORK(&ts->work, ili2102_ts_work_func);
- ts->client = client;
- i2c_set_clientdata(client, ts);
+ ts = kzalloc(sizeof(*ts), GFP_KERNEL);
+ if (ts == NULL) {
+ ret = -ENOMEM;
+ goto err_alloc_data_failed;
+ }
+
+ ts->ts_wq = create_singlethread_workqueue("ts_wq");
+ if (!ts->ts_wq)
+ {
+ printk("%s:fail to create ts_wq,ret=0x%x\n",__FUNCTION__, ENOMEM);
+ return -ENOMEM;
+ }
+ //INIT_WORK(&ts->work, ili2102_ts_work_func);
+ INIT_DELAYED_WORK(&ts->work, ili2102_ts_work_func);
+ ts->client = client;
+ i2c_set_clientdata(client, ts);
ret = setup_resetPin(client,ts);
if(ret)
goto err_resetpin_failed;
}
- /* allocate input device */
- ts->input_dev = input_allocate_device();
- if (ts->input_dev == NULL) {
- ret = -ENOMEM;
- printk(KERN_ERR "ili2102_ts_probe: Failed to allocate input device\n");
- goto err_input_dev_alloc_failed;
- }
+ /* allocate input device */
+ ts->input_dev = input_allocate_device();
+ if (ts->input_dev == NULL) {
+ ret = -ENOMEM;
+ printk(KERN_ERR "ili2102_ts_probe: Failed to allocate input device\n");
+ goto err_input_dev_alloc_failed;
+ }
ts->model = pdata->model ? : 801;
ts->swap_xy = pdata->swap_xy;
ts->y_min = pdata->y_min;
ts->y_max = pdata->y_max;
snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&client->dev));
- snprintf(ts->name, sizeof(ts->name), "gt%d-touchscreen", ts->model);
+ snprintf(ts->name, sizeof(ts->name), "ili%d-touchscreen", ts->model);
ts->input_dev->phys = ts->phys;
ts->input_dev->name = ts->name;
ts->input_dev->dev.parent = &client->dev;
+ ts->pendown = 0;
+ ts->valid_i2c_register = 1;
- ts->input_dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_ABS);
- //ts->input_dev->absbit[0] =
+ //ts->input_dev->evbit[0] = BIT_MASK(EV_SYN) | BIT_MASK(EV_ABS);
+ //ts->input_dev->absbit[0] =
//BIT(ABS_MT_POSITION_X) | BIT(ABS_MT_POSITION_Y) |
//BIT(ABS_MT_TOUCH_MAJOR) | BIT(ABS_MT_WIDTH_MAJOR); // for android
- input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X,
+
+ __set_bit(INPUT_PROP_DIRECT, ts->input_dev->propbit);
+ __set_bit(EV_ABS, ts->input_dev->evbit);
+
+ input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X,
ts->x_min ? : 0,
ts->x_max ? : 480,
0, 0);
- input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y,
+ input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y,
ts->y_min ? : 0,
ts->y_max ? : 800,
0, 0);
- input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 1, 0, 0); //Finger Size
- input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 10, 0, 0); //Touch Size
-
- /* ts->input_dev->name = ts->keypad_info->name; */
- ret = input_register_device(ts->input_dev);
- if (ret) {
- printk(KERN_ERR "ili2102_ts_probe: Unable to register %s input device\n", ts->input_dev->name);
- goto err_input_register_device_failed;
- }
+ input_mt_init_slots(ts->input_dev, TOUCH_NUMBER);
+ input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
+ //input_set_abs_params(ts->input_dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
+
+ /* ts->input_dev->name = ts->keypad_info->name; */
+ ret = input_register_device(ts->input_dev);
+ if (ret) {
+ printk(KERN_ERR "ili2102_ts_probe: Unable to register %s input device\n", ts->input_dev->name);
+ goto err_input_register_device_failed;
+ }
client->irq = gpio_to_irq(client->irq);
- if (client->irq) {
+ if (client->irq)
+ {
ret = setup_pendown(client,ts);
if(ret)
{
printk("ili2102 TS setup_pendown fail\n");
goto err_input_register_device_failed;
}
+
ret = request_irq(client->irq, ili2102_ts_irq_handler, IRQF_DISABLED | IRQF_TRIGGER_LOW, client->name, ts);
if (ret == 0) {
DBG("ili2102 TS register ISR (irq=%d)\n", client->irq);
ts->use_irq = 1;
}
else
- dev_err(&client->dev, "request_irq failed\n");
- }
-
- if (!ts->use_irq) {
- hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
- ts->timer.function = ili2102_ts_timer_func;
- hrtimer_start(&ts->timer, ktime_set(1, 0), HRTIMER_MODE_REL);
+ dev_err(&client->dev, "request_irq failed\n");
}
+
+#if ILI2102_TS_APK_SUPPORT
+ // initialize global variable
+ g_ts = ts;
+ memset(&g_dev, 0, sizeof(struct dev_data));
+
+ // allocate character device driver buffer
+ ret = alloc_chrdev_region(&g_dev.devno, 0, 1, ILITEK_FILE_DRIVER_NAME);
+ if(ret){
+ printk(ILITEK_ERROR_LEVEL "%s, can't allocate chrdev\n", __func__);
+ return ret;
+ }
+ printk(ILITEK_DEBUG_LEVEL "%s, register chrdev(%d, %d)\n", __func__, MAJOR(g_dev.devno), MINOR(g_dev.devno));
+
+ // initialize character device driver
+ cdev_init(&g_dev.cdev, &ilitek_fops);
+ g_dev.cdev.owner = THIS_MODULE;
+ ret = cdev_add(&g_dev.cdev, g_dev.devno, 1);
+ if(ret < 0){
+ printk(ILITEK_ERROR_LEVEL "%s, add character device error, ret %d\n", __func__, ret);
+ return ret;
+ }
+ g_dev.class = class_create(THIS_MODULE, ILITEK_FILE_DRIVER_NAME);
+ if(IS_ERR(g_dev.class)){
+ printk(ILITEK_ERROR_LEVEL "%s, create class, error\n", __func__);
+ return ret;
+ }
+ device_create(g_dev.class, NULL, g_dev.devno, NULL, "ilitek_ctrl");
+#endif
+
#ifdef CONFIG_HAS_EARLYSUSPEND
- ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
- ts->early_suspend.suspend = ili2102_ts_early_suspend;
- ts->early_suspend.resume = ili2102_ts_late_resume;
- register_early_suspend(&ts->early_suspend);
+ ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
+ ts->early_suspend.suspend = ili2102_ts_early_suspend;
+ ts->early_suspend.resume = ili2102_ts_late_resume;
+ register_early_suspend(&ts->early_suspend);
#endif
+
+ struct proc_dir_entry *ili2102_proc_entry;
+ ili2102_proc_entry = proc_create("driver/ili2102", 0777, NULL, &ili2102_proc_fops);
- printk(KERN_INFO "ili2102_ts_probe: Start touchscreen %s in %s mode\n", ts->input_dev->name, ts->use_irq ? "interrupt" : "polling");
+ printk(KERN_INFO "ili2102_ts_probe: Start touchscreen %s in %s mode\n", ts->input_dev->name, ts->use_irq ? "interrupt" : "polling");
- return 0;
+ return 0;
-err_input_register_device_failed:
- input_free_device(ts->input_dev);
-err_resetpin_failed:
+ err_input_register_device_failed:
+ input_free_device(ts->input_dev);
+ err_resetpin_failed:
gpio_free(ts->gpio_reset);
-err_input_dev_alloc_failed:
- kfree(ts);
-err_alloc_data_failed:
-err_check_functionality_failed:
- return ret;
+ err_input_dev_alloc_failed:
+ kfree(ts);
+ err_alloc_data_failed:
+ err_check_functionality_failed:
+ return ret;
}
static int ili2102_ts_remove(struct i2c_client *client)
{
- struct ili2102_ts_data *ts = i2c_get_clientdata(client);
- unregister_early_suspend(&ts->early_suspend);
- if (ts->use_irq)
- free_irq(client->irq, ts);
- else
- hrtimer_cancel(&ts->timer);
- input_unregister_device(ts->input_dev);
- kfree(ts);
- return 0;
+ struct ili2102_ts_data *ts = i2c_get_clientdata(client);
+ unregister_early_suspend(&ts->early_suspend);
+ if (ts->use_irq)
+ free_irq(client->irq, ts);
+ else
+ hrtimer_cancel(&ts->timer);
+ input_unregister_device(ts->input_dev);
+ if (ts->ts_wq)
+ cancel_delayed_work_sync(&ts->work);
+ kfree(ts);
+
+#if ILI2102_TS_APK_SUPPORT
+ // delete character device driver
+ cdev_del(&g_dev.cdev);
+ unregister_chrdev_region(g_dev.devno, 1);
+ device_destroy(g_dev.class, g_dev.devno);
+ class_destroy(g_dev.class);
+#endif
+
+ return 0;
}
static int ili2102_ts_suspend(struct i2c_client *client, pm_message_t mesg)
{
- int ret;
- struct ili2102_ts_data *ts = i2c_get_clientdata(client);
+ int ret;
+ struct ili2102_ts_data *ts = i2c_get_clientdata(client);
+ uint8_t buf[1] = {0x30};
+ struct i2c_msg msg[1];
+
+ //to do suspend
+ msg[0].addr =client->addr;
+ msg[0].flags = 0;
+ msg[0].len = 1;
+ msg[0].buf = buf;
+
+ ret = i2c_transfer(client->adapter, msg, 1);
+ if (ret < 0) {
+ printk("%s:err\n",__FUNCTION__);
+ }
- printk("ili2102 TS Suspend\n");
-
- if (ts->use_irq)
- disable_irq(client->irq);
- else
- hrtimer_cancel(&ts->timer);
+ ret = cancel_delayed_work_sync(&ts->work);
+ if (ret && ts->use_irq) /* if work was pending disable-count is now 2 */
+ enable_irq(client->irq);
+
+ if (ts->use_irq)
+ {
+ free_irq(client->irq, ts);
+ //change irq type to IRQF_TRIGGER_FALLING to avoid system death
+ ret = request_irq(client->irq, ili2102_ts_irq_handler, IRQF_DISABLED | IRQF_TRIGGER_FALLING, client->name, ts);
+ if (ret == 0) {
+ disable_irq_nosync(client->irq);
+ ts->use_irq = 1;
+ }
+ else
+ printk("%s:request irq=%d failed,ret=%d\n",__FUNCTION__, ts->client->irq, ret);
+ }
+ else
+ hrtimer_cancel(&ts->timer);
- ret = cancel_work_sync(&ts->work);
- if (ret && ts->use_irq) /* if work was pending disable-count is now 2 */
- enable_irq(client->irq);
+ DBG("%s\n",__FUNCTION__);
+
+ return 0;
+}
- // TODO do suspend
- return 0;
+
+static void ili2102_ts_resume_work_func(struct work_struct *work)
+{
+ struct ili2102_ts_data *ts = container_of(work, struct ili2102_ts_data, work);
+ int ret,i;
+
+ PREPARE_DELAYED_WORK(&ts->work, ili2102_ts_work_func);
+ mdelay(100); //wait for 100ms before i2c operation
+
+ free_irq(ts->client->irq, ts);
+ ret = request_irq(ts->client->irq, ili2102_ts_irq_handler, IRQF_DISABLED | IRQF_TRIGGER_LOW, ts->client->name, ts);
+ if (ret == 0) {
+ ts->use_irq = 1;
+ //enable_irq(ts->client->irq);
+ }
+ else
+ printk("%s:request irq=%d failed,ret=%d\n",__FUNCTION__,ts->client->irq,ret);
+
+ DBG("%s,irq=%d\n",__FUNCTION__,ts->client->irq);
}
+
static int ili2102_ts_resume(struct i2c_client *client)
{
struct ili2102_ts_data *ts = i2c_get_clientdata(client);
ili2102_init_panel(ts);
-
- //TODO do resume
-
- printk("ili2102 TS Resume\n");
-
+
if (ts->use_irq) {
- printk("enabling IRQ %d\n", client->irq);
- enable_irq(client->irq);
+ if(!delayed_work_pending(&ts->work)){
+ PREPARE_DELAYED_WORK(&ts->work, ili2102_ts_resume_work_func);
+ queue_delayed_work(ts->ts_wq, &ts->work, 0);
+ }
}
- else
+ else {
hrtimer_start(&ts->timer, ktime_set(1, 0), HRTIMER_MODE_REL);
+ }
+
+ DBG("%s\n",__FUNCTION__);
return 0;
}
+
#ifdef CONFIG_HAS_EARLYSUSPEND
static void ili2102_ts_early_suspend(struct early_suspend *h)
{
.probe = ili2102_ts_probe,
.remove = ili2102_ts_remove,
#ifndef CONFIG_HAS_EARLYSUSPEND
- .suspend = ili2102_ts_suspend,
- .resume = ili2102_ts_resume,
+ .suspend = ili2102_ts_early_suspend,
+ .resume = ili2102_ts_late_resume,
#endif
.id_table = ili2102_ts_id,
.driver = {
static int __devinit ili2102_ts_init(void)
{
- printk("ili2102 TS init\n"); //[Step 0]
- ili2102_wq = create_singlethread_workqueue("ili2102_wq");
- if (!ili2102_wq)
- return -ENOMEM;
return i2c_add_driver(&ili2102_ts_driver);
}
static void __exit ili2102_ts_exit(void)
{
- printk("ili2102 TS exit\n");
- i2c_del_driver(&ili2102_ts_driver);
- if (ili2102_wq)
- destroy_workqueue(ili2102_wq);
+ i2c_del_driver(&ili2102_ts_driver);
}
module_init(ili2102_ts_init);
projects / firefly-linux-kernel-4.4.55.git / blobdiff