static int gpio_sw_cfg_set(struct gpio_sw_classdev *gpio_sw_cdev,int mul_sel)
{
struct gpio_sw *gpio = to_gpio(gpio_sw_cdev);
struct gpio_sw_platdata *pd = gpio->pdata;
int ret ;
GPIO_SW_DEBUG("attending gpio_sw_cfg_set \n");
GPIO_SW_DEBUG("pio_hdle is %x \n",gpio->cdev.pio_hdle);
ret = gpio_set_one_pin_io_status(gpio->cdev.pio_hdle, mul_sel, pd->name);
if ( !ret )
gpio_sw_cdev->mul_sel=mul_sel;
GPIO_SW_DEBUG("left gpio_sw_cfg_set \n");
return ret;
}
/* Set gpio pin output mode and value */
static int sunxi_gpio_direction_out(struct gpio_chip *chip,
unsigned gpio, int val)
{
int ret;
struct sunxi_gpio_chip *sgpio = to_sunxi_gpio(chip);
ret = gpio_set_one_pin_io_status(sgpio->data[gpio].gpio_handler,
SUNXI_GPIO_OUTPUT,
sgpio->data[gpio].pin_name);
if (!ret) {
sgpio->data[gpio].info.mul_sel = SUNXI_GPIO_OUTPUT;
ret = gpio_write_one_pin_value(sgpio->data[gpio].gpio_handler,
val, sgpio->data[gpio].pin_name);
}
return ret;
}
/*
*******************************************************************************
* pin_init
*
* Description:
* void
*
* Parameters:
* void
*
* Return value:
* void
*
* note:
* void
*
*******************************************************************************
*/
static u32 alloc_pin(user_gpio_set_t *gpio_list)
{
u32 pin_handle = 0;
pin_handle = gpio_request(gpio_list, 1);
if(pin_handle == 0){
DMSG_PANIC("ERR: gpio_request failed\n");
return 0;
}
/* set config, ouput */
gpio_set_one_pin_io_status(pin_handle, 1, NULL);
/* reserved is pull down */
gpio_set_one_pin_pull(pin_handle, 2, NULL);
return pin_handle;
}
/* Set gpio pin input mode */
static int sunxi_gpio_direction_in(struct gpio_chip *chip, unsigned gpio)
{
int ret = 0;
struct sunxi_gpio_chip *sgpio = to_sunxi_gpio(chip);
/* EINT mode == INPUT mode, so if we */
/* are in EINT mode - just skip setup */
/* To switch to input mode you should */
/* disable irq first */
if (sgpio->data[gpio].info.mul_sel != sgpio->data[gpio].eint_mux) {
ret = gpio_set_one_pin_io_status(sgpio->data[gpio].gpio_handler,
SUNXI_GPIO_INPUT,
sgpio->data[gpio].pin_name);
if (!ret)
sgpio->data[gpio].info.mul_sel = SUNXI_GPIO_INPUT;
}
return ret;
}
