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modify eeti i2c rate to 200kHZ

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sakura
2011-01-14 10:59:56 +08:00
parent c158e9a5b0
commit f07a7d2ae1
1 changed files with 6 additions and 10 deletions
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16
drivers/input/touchscreen/eeti_egalax_i2c.c
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@@ -54,7 +54,7 @@
static int global_major = 0; // dynamic major by default
static int global_minor = 0;
#define EETI_I2C_RATE (200*1000)
#define MAX_I2C_LEN 10
#define FIFO_SIZE PAGE_SIZE
#define MAX_SUPPORT_POINT 5
@@ -244,7 +244,7 @@ static ssize_t egalax_cdev_write(struct file *file, const char __user *buf, size
return -EFAULT;
}
ret = i2c_master_send(p_egalax_i2c_dev->client, tmp, count);
ret = i2c_master_normal_send(p_egalax_i2c_dev->client, tmp, count,EETI_I2C_RATE);
TS_DEBUG("I2C writing %zu bytes.\n", count);
kfree(tmp);
@@ -338,7 +338,6 @@ static void ProcessReport(unsigned char *buf, int buflen)
{
int i;
short X=0, Y=0, ContactID=0, Status=0;
if(buflen!=MAX_I2C_LEN || buf[0]!=0x04) // check buffer len & header
return;
@@ -421,10 +420,9 @@ static int egalax_i2c_measure(struct i2c_client *client, char skip_packet)
{
u8 x_buf[MAX_I2C_LEN];
int count, loop=3;
DBG();
do{
count = i2c_master_recv(client, x_buf, MAX_I2C_LEN);
count = i2c_master_normal_recv(client, x_buf, MAX_I2C_LEN,EETI_I2C_RATE);
}while(count==EAGAIN && --loop);
if( count<0 || (x_buf[0]!=REPORTID_VENDOR && x_buf[0]!=REPORTID_MTOUCH) )
@@ -467,7 +465,6 @@ static void egalax_i2c_wq(struct work_struct *work)
struct _egalax_i2c *egalax_i2c = container_of(work, struct _egalax_i2c, work);
struct i2c_client *client = egalax_i2c->client;
int gpio = client->irq;
TS_DEBUG("egalax_i2c_wq run\n");
mutex_lock(&egalax_i2c->mutex_wq);
@@ -492,7 +489,6 @@ static void egalax_i2c_wq(struct work_struct *work)
static irqreturn_t egalax_i2c_interrupt(int irq, void *dev_id)
{
struct _egalax_i2c *egalax_i2c = (struct _egalax_i2c *)dev_id;
TS_DEBUG("egalax_i2c_interrupt with irq:%d\n", irq);
disable_irq_nosync(irq);
queue_work(egalax_i2c->ktouch_wq, &egalax_i2c->work);
@@ -506,7 +502,7 @@ static int egalax_i2c_suspend(struct i2c_client *client, pm_message_t mesg)
struct _egalax_i2c *egalax_i2c = i2c_get_clientdata(client);
u8 cmdbuf[MAX_I2C_LEN]={0x03, 0x05, 0x0A, 0x03, 0x36, 0x3F, 0x02, 0, 0, 0};
i2c_master_send(client, cmdbuf, MAX_I2C_LEN);
i2c_master_normal_send(client, cmdbuf, MAX_I2C_LEN, EETI_I2C_RATE);
egalax_i2c->work_state = 0;
disable_irq(p_egalax_i2c_dev->irq);
@@ -781,7 +777,7 @@ static void __init egalax_i2c_ts_init_async(void *unused, async_cookie_t cookie)
{
int result;
dev_t devno = 0;
printk("--------> %s <-------------\n",__func__);
DBG();
// Asking for a dynamic major unless directed otherwise at load time.
@@ -824,7 +820,7 @@ printk("--------> %s <-------------\n",__func__);
device_create(egalax_class, NULL, devno, NULL, "egalax_i2c");
#endif
TS_DEBUG("register egalax_i2c cdev, major: %d \n",global_major);
printk("--------> %s <-------------\n",__func__);
printk(KERN_DEBUG "[egalax_i2c]: init done\n");
return i2c_add_driver(&egalax_i2c_driver);