FT5406(添加XXX供应商TP5306支持)

来源：互联网发布：织梦cms 视频播放编辑：程序博客网时间：2024/04/30 08:48

修改只需要在FT5406_touch.c的基础上进行解单的修改就可以了,他们用的芯片都是同一款芯片，只是产品型号上有些出入。只需要做简单的修改就可以进行调试：

第一个需要修改的就是

static void ft5406_ts_work_func(struct work_struct * work)
{
struct ft5406_ts * ts = container_of(work, struct ft5406_ts, work);
uint8_t buf[32] = { 0 };
unsigned int X, Y,oldx,oldy;
unsigned int x, y, event, id;
int i;

ft5406_read_coordinates(ts->client, buf, 32);

for(i = 0; i < 5; i++)
{
X = (buf[i*6 + 3])<<8 | buf[i*6 + 4];
Y = (buf[i*6 + 5])<<8 | buf[i*6 + 6];

y = X & 0xfff;
x = Y & 0xfff;
//打印出来的坐标x，y值刚好与我们所需的刚好相反，数值正确。所以下面做了x，y值得交换；

oldx = y;
oldy = x;
//x = (x * SCREEN_MAX_WIDTH / TOUCH_MAX_WIDTH);
//x = SCREEN_MAX_WIDTH - x;
//y = (y * SCREEN_MAX_HEIGHT / TOUCH_MAX_HEIGHT); 注释的此3行代码是因为此前屏做了270度的调转
x = x ^ y;
y = x ^ y;
x = x ^ y;

event = (X >> 14) & 0x3;
id = (Y >> 12) & 0xf;

if(id >= 0 && id <= 4)
{
ts->node[id].x = x;
ts->node[id].y = y;

if((event == 0) || (event == 0x02))
{
input_report_abs(ts->input_dev, ABS_MT_POSITION_X, ts->node[id].x);
input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, ts->node[id].y);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 1);
input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 1);
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, id);
input_mt_sync(ts->input_dev);

//printk("[%d]down: x = %4d, y = %4d\n", id, ts->node[id].x, ts->node[id].y);
}
else if(event == 0x01)
{
input_report_abs(ts->input_dev, ABS_MT_POSITION_X, ts->node[id].x);
input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, ts->node[id].y);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0);
input_report_abs(ts->input_dev,ABS_MT_TRACKING_ID, id);
input_mt_sync(ts->input_dev);

static void ft5406_ts_work_func(struct work_struct * work)
{
struct ft5406_ts * ts = container_of(work, struct ft5406_ts, work);
uint8_t buf[32] = { 0 };
unsigned int X, Y,oldx,oldy;
unsigned int x, y, event, id;
int i;

ft5406_read_coordinates(ts->client, buf, 32);

for(i = 0; i < 5; i++)
{
X = (buf[i*6 + 3])<<8 | buf[i*6 + 4];
Y = (buf[i*6 + 5])<<8 | buf[i*6 + 6];

y = X & 0xfff;
x = Y & 0xfff;

oldx = y;
oldy = x;
//x = (x * SCREEN_MAX_WIDTH / TOUCH_MAX_WIDTH);
//x = SCREEN_MAX_WIDTH - x;
//y = (y * SCREEN_MAX_HEIGHT / TOUCH_MAX_HEIGHT);
x = x ^ y;
y = x ^ y;
x = x ^ y;

event = (X >> 14) & 0x3;
id = (Y >> 12) & 0xf;

if(id >= 0 && id <= 4)
{
ts->node[id].x = x;
ts->node[id].y = y;

if((event == 0) || (event == 0x02))
{
input_report_abs(ts->input_dev, ABS_MT_POSITION_X, ts->node[id].x);
input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, ts->node[id].y);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 1);
input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 1);
input_report_abs(ts->input_dev, ABS_MT_TRACKING_ID, id);
input_mt_sync(ts->input_dev);

//printk("[%d]down: x = %4d, y = %4d\n", id, ts->node[id].x, ts->node[id].y);
}
else if(event == 0x01)
{
input_report_abs(ts->input_dev, ABS_MT_POSITION_X, ts->node[id].x);
input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, ts->node[id].y);
input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0);
input_report_abs(ts->input_dev,ABS_MT_TRACKING_ID, id);
input_mt_sync(ts->input_dev);

}

ft5406_process_key(ts->input_dev, oldx, oldy, event, id);
}
}

input_sync(ts->input_dev);
enable_irq(ts->client->irq);
}

下面我们可是修改按键所涉及的变量：
static void ft5406_process_key(struct input_dev * dev, int x, int y, int event, int id)
{
static uint8_t key_old = 0x0;
uint8_t key, keyup, keydown;

// printk("x=%d, y=%d, event=%d, id=%d\n", x, y, event, id);

if( y > 1024 + 20 )
{
key = 0;

if(g_vendorID == 0x79)
{
if((x >570) && (x < 600))
{
if((event == 0) || (event == 0x02))
key |= 0x8;
else if(event == 0x01)
key &= ~0x8;
}
else if((x > 510) && (x < 540))
{
if((event == 0) || (event == 0x02))
key |= 0x4;
else if(event == 0x01)
key &= ~0x4;
}
else if((x > 450) && (x < 480))
{
if((event == 0) || (event == 0x02))
key |= 0x2;
else if(event == 0x01)
key &= ~0x2;
}
else if((x > 400) && (x < 430))
{
if((event == 0) || (event == 0x02))
key |= 0x1;
else if(event == 0x01)
key &= ~0x1;
}
}

}
else
{
return;
}

if(key != key_old)
{
keyup = (key ^ key_old) & key_old;
keydown = (key ^ key_old) & key;
key_old = key;

if(keyup)
{
if(keyup & 0x1)
input_report_key(dev, K_SEARCH, 0);
else if(keyup & 0x2)
input_report_key(dev, K_MENU, 0);
else if(keyup & 0x4)
input_report_key(dev, K_HOME, 0);
else if(keyup & 0x8)
input_report_key(dev, K_BACK, 0);
}

if(keydown)
{
if(keydown & 0x1)
input_report_key(dev, K_SEARCH, 0);
else if(keydown & 0x2)
input_report_key(dev, K_MENU, 1);
else if(keydown & 0x4)
input_report_key(dev, K_HOME, 1);
else if(keydown & 0x8)
input_report_key(dev, K_BACK, 1);

gpio_enable_ext(50);
}
}
}

按照g_vendorID获取到你值进行判断使用的是那款屏,然后通过打印出来的X,Y值来设置BACK,HOME,MENU,SEARCH的键值范围并进行事件上报；

我的工作也就完成了.O(∩_∩)O哈哈~