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gpio debug

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This commit is contained in:
yzq
2012-10-10 09:15:08 +08:00
parent 367c9295a3
commit 861ef61d90
1 changed files with 48 additions and 0 deletions
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48
drivers/mfd/rk610-core.c
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@@ -157,6 +157,7 @@ void rk610_control_init_codec(void)
DBG("[%s] RK610_CONTROL_REG_CLOCK_CON1 is %x\n", __FUNCTION__, data);
}
#endif
#define RK610_DEBUG
#ifdef RK610_DEBUG
static int rk610_read_p0_reg(struct i2c_client *client, char reg, char *val)
{
@@ -202,8 +203,54 @@ static ssize_t rk610_store_reg_attrs(struct device *dev,
return size;
}
#define LCD_CS_PIN RK30_PIN2_PB6
#define LCD_CS_VALUE GPIO_HIGH
#define LCD_EN_PIN RK30_PIN0_PB0
#define LCD_EN_VALUE GPIO_LOW
#define LCD_STB_PIN RK30_PIN2_PB3
#define LCD_STB_VALUE GPIO_HIGH
static ssize_t rk610_show_gpio_attrs(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int size=0;
printk("gpio2b6 lcd_cs =%d\n",gpio_get_value(LCD_CS_PIN));
printk("gpio0b0 lcd_en =%d\n",gpio_get_value(LCD_EN_PIN));
printk("gpio2b3 lcd_stb =%d\n",gpio_get_value(LCD_STB_PIN));
return size;
}
static ssize_t rk610_store_gpio_attrs(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
struct i2c_client *client=NULL;
static char val=0,reg=0;
sscanf(buf, "%x%x", &val,&reg);
DBG("reg=%x val=%x\n",reg,val);
switch(reg){
case 1:
gpio_set_value(LCD_CS_PIN,val&1);
break;
case 2:
gpio_set_value(LCD_EN_PIN,val&1);
break;
case 3:
gpio_set_value(LCD_STB_PIN,val&1);
break;
}
printk("gpio2b6 lcd_cs =%d\n",gpio_get_value(LCD_CS_PIN));
printk("gpio0b0 lcd_en =%d\n",gpio_get_value(LCD_EN_PIN));
printk("gpio2b3 lcd_stb =%d\n",gpio_get_value(LCD_STB_PIN));
return size;
}
static struct device_attribute rk610_attrs[] = {
__ATTR(reg_ctl, 0777,rk610_show_reg_attrs,rk610_store_reg_attrs),
__ATTR(gpio_ctl, 0777,rk610_show_gpio_attrs,rk610_store_gpio_attrs),
};
#endif
@@ -255,6 +302,7 @@ static int rk610_control_probe(struct i2c_client *client,
rk610_lcd_init(core_info);
#ifdef RK610_DEBUG
device_create_file(&(client->dev), &rk610_attrs[0]);
device_create_file(&(client->dev), &rk610_attrs[1]);
#endif
return 0;
}