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gpio: remove legacy read/write API functions

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The last external reference to these was removed when the pin
write/read functions were deprecated.  Remove the syscall support, API
function table entries, and implementation from all drivers.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This commit is contained in:
Peter Bigot 2020-01-30 09:06:37 -06:00 • committed by Carles Cufí
commit 1f9beb193f
26 changed files with 0 additions and 1210 deletions
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100
drivers/gpio/gpio_pca95xx.c
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@ -361,104 +361,6 @@ done:
return ret;
}
/**
* @brief Set the pin or port output
*
* @param dev Device struct of the PCA95XX
* @param access_op Access operation (pin or port)
* @param pin The pin number
* @param value Value to set (0 or 1)
*
* @return 0 if successful, failed otherwise
*/
static int gpio_pca95xx_write(struct device *dev, int access_op,
u32_t pin, u32_t value)
{
struct gpio_pca95xx_drv_data * const drv_data =
(struct gpio_pca95xx_drv_data * const)dev->driver_data;
u16_t reg_out;
int ret;
/* Can't do I2C bus operations from an ISR */
if (k_is_in_isr()) {
return -EWOULDBLOCK;
}
k_sem_take(&drv_data->lock, K_FOREVER);
reg_out = drv_data->reg_cache.output;
/* Invert input value for pins configurated as active low. */
switch (access_op) {
case GPIO_ACCESS_BY_PIN:
if (value) {
reg_out |= BIT(pin);
} else {
reg_out &= ~BIT(pin);
}
break;
case GPIO_ACCESS_BY_PORT:
reg_out = value;
break;
default:
ret = -ENOTSUP;
goto done;
}
ret = update_output_regs(dev, reg_out);
done:
k_sem_give(&drv_data->lock);
return ret;
}
/**
* @brief Read the pin or port status
*
* @param dev Device struct of the PCA95XX
* @param access_op Access operation (pin or port)
* @param pin The pin number
* @param value Value of input pin(s)
*
* @return 0 if successful, failed otherwise
*/
static int gpio_pca95xx_read(struct device *dev, int access_op,
u32_t pin, u32_t *value)
{
struct gpio_pca95xx_drv_data * const drv_data =
(struct gpio_pca95xx_drv_data * const)dev->driver_data;
u16_t buf;
int ret;
/* Can't do I2C bus operations from an ISR */
if (k_is_in_isr()) {
return -EWOULDBLOCK;
}
k_sem_take(&drv_data->lock, K_FOREVER);
ret = read_port_regs(dev, REG_INPUT_PORT0, &buf);
if (ret != 0) {
goto done;
}
switch (access_op) {
case GPIO_ACCESS_BY_PIN:
*value = (buf >> pin) & 0x01;
break;
case GPIO_ACCESS_BY_PORT:
*value = buf;
break;
default:
ret = -ENOTSUP;
break;
}
done:
k_sem_give(&drv_data->lock);
return ret;
}
static int gpio_pca95xx_port_get_raw(struct device *dev, u32_t *value)
{
struct gpio_pca95xx_drv_data * const drv_data =
@ -554,8 +456,6 @@ static int gpio_pca95xx_pin_interrupt_configure(struct device *dev,
static const struct gpio_driver_api gpio_pca95xx_drv_api_funcs = {
.config = gpio_pca95xx_config,
.write = gpio_pca95xx_write,
.read = gpio_pca95xx_read,
.port_get_raw = gpio_pca95xx_port_get_raw,
.port_set_masked_raw = gpio_pca95xx_port_set_masked_raw,
.port_set_bits_raw = gpio_pca95xx_port_set_bits_raw,