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Fix documentation copy errors and leftovers in gpio.c and gpio.h

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Use explicit cast in gpio_read
This commit is contained in:
Resaec 2018-05-02 19:59:37 +02:00
parent 18cb54969a
commit 01cd910c54
2 changed files with 10 additions and 14 deletions
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17
fusee/fusee-primary/src/gpio.c
View file

@ -46,7 +46,7 @@ static volatile int gpio_get_port(enum tegra_named_gpio pin)
static volatile uint32_t gpio_get_mask(enum tegra_named_gpio pin)
{
uint32_t pin_number = pin & GPIO_PIN_MASK;
return (1 << pin_number);
return 1 << pin_number;
}
@ -55,7 +55,7 @@ static volatile uint32_t gpio_get_mask(enum tegra_named_gpio pin)
* Performs a simple GPIO configuration operation.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param should_be_set True iff the relevant bit should be set; or false if it should be cleared.
* @param should_be_set True if the relevant bit should be set; or false if it should be cleared.
* @param offset The offset into a gpio_bank structure
*/
static void gpio_simple_register_set(enum tegra_named_gpio pin, bool should_be_set, size_t offset)
@ -69,7 +69,6 @@ static void gpio_simple_register_set(enum tegra_named_gpio pin, bool should_be_s
int port = gpio_get_port(pin);
uint32_t mask = gpio_get_mask(pin);
// Set or clear the bit, as appropriate.
if (should_be_set)
cluster[port] |= mask;
@ -79,10 +78,9 @@ static void gpio_simple_register_set(enum tegra_named_gpio pin, bool should_be_s
/**
* Performs a simple GPIO configuration operation.
* Returns the state of a GPIO pin.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param should_be_set True iff the relevant bit should be set; or false if it should be cleared.
* @param offset The offset into a gpio_bank structure
*/
static bool gpio_simple_register_get(enum tegra_named_gpio pin, size_t offset)
@ -117,7 +115,7 @@ void gpio_configure_mode(enum tegra_named_gpio pin, enum tegra_gpio_mode mode)
* Configures a given pin as either INPUT or OUPUT.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param direction The relevant direction.
* @param dir The relevant direction.
*/
void gpio_configure_direction(enum tegra_named_gpio pin, enum tegra_gpio_direction dir)
{
@ -129,7 +127,7 @@ void gpio_configure_direction(enum tegra_named_gpio pin, enum tegra_gpio_directi
* Drives a relevant GPIO pin as either HIGH or LOW.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param mode The relevant mode.
* @param value The relevant mode.
*/
void gpio_write(enum tegra_named_gpio pin, enum tegra_gpio_value value)
{
@ -138,12 +136,11 @@ void gpio_write(enum tegra_named_gpio pin, enum tegra_gpio_value value)
/**
* Drives a relevant GPIO pin as either HIGH or LOW.
* Retrieves a relevant GPIO pin as either HIGH or LOW.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param mode The relevant mode.
*/
enum tegra_gpio_value gpio_read(enum tegra_named_gpio pin)
{
return gpio_simple_register_get(pin, offsetof(struct tegra_gpio_bank, in));
return (enum tegra_gpio_value)gpio_simple_register_get(pin, offsetof(struct tegra_gpio_bank, in));
}

7
fusee/fusee-primary/src/gpio.h
View file

@ -150,7 +150,7 @@ void gpio_configure_mode(enum tegra_named_gpio pin, enum tegra_gpio_mode mode);
* Configures a given pin as either INPUT or OUPUT.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param direction The relevant direction.
* @param dir The relevant direction.
*/
void gpio_configure_direction(enum tegra_named_gpio pin, enum tegra_gpio_direction dir);
@ -159,15 +159,14 @@ void gpio_configure_direction(enum tegra_named_gpio pin, enum tegra_gpio_directi
* Drives a relevant GPIO pin as either HIGH or LOW.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param mode The relevant value.
* @param value The relevant mode.
*/
void gpio_write(enum tegra_named_gpio pin, enum tegra_gpio_value value);
/**
* Drives a relevant GPIO pin as either HIGH or LOW.
* Retrieves a relevant GPIO pin as either HIGH or LOW.
*
* @param pin The GPIO pin to work with, as created with TEGRA_GPIO, or a named GPIO.
* @param mode The relevant mode.
*/
enum tegra_gpio_value gpio_read(enum tegra_named_gpio pin);