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| author | Bo Shen <voice.shen@atmel.com> | 2013-08-13 14:38:31 +0800 |
|---|---|---|
| committer | Andreas Bießmann <andreas.devel@googlemail.com> | 2013-08-22 16:51:33 +0200 |
| commit | 6edaea8705c19d2b89e941efcb4257a01fd9725e (patch) | |
| tree | 03f908c920e7cefa3c02171f82dec6b5a5c3d382 | |
| parent | 4bc9b7a56036f7ecf402842e5c381c0ed3bdca4c (diff) | |
| download | u-boot-imx-6edaea8705c19d2b89e941efcb4257a01fd9725e.zip u-boot-imx-6edaea8705c19d2b89e941efcb4257a01fd9725e.tar.gz u-boot-imx-6edaea8705c19d2b89e941efcb4257a01fd9725e.tar.bz2 | |
gpio: atmel: add gpio common API support
add gpio common API support for gpio command
Signed-off-by: Bo Shen <voice.shen@atmel.com>
[fix unnecessary cast]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
| -rw-r--r-- | drivers/gpio/at91_gpio.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c index 6d227d3..6073843 100644 --- a/drivers/gpio/at91_gpio.c +++ b/drivers/gpio/at91_gpio.c @@ -353,3 +353,46 @@ int at91_get_pio_value(unsigned port, unsigned pin) return pdsr != 0; } + +/* Common GPIO API */ + +#define at91_gpio_to_port(gpio) (gpio / 32) +#define at91_gpio_to_pin(gpio) (gpio % 32) + +int gpio_request(unsigned gpio, const char *label) +{ + return 0; +} + +int gpio_free(unsigned gpio) +{ + return 0; +} + +int gpio_direction_input(unsigned gpio) +{ + at91_set_pio_input(at91_gpio_to_port(gpio), + at91_gpio_to_pin(gpio), 0); + return 0; +} + +int gpio_direction_output(unsigned gpio, int value) +{ + at91_set_pio_output(at91_gpio_to_port(gpio), + at91_gpio_to_pin(gpio), value); + return 0; +} + +int gpio_get_value(unsigned gpio) +{ + return at91_get_pio_value(at91_gpio_to_port(gpio), + at91_gpio_to_pin(gpio)); +} + +int gpio_set_value(unsigned gpio, int value) +{ + at91_set_pio_value(at91_gpio_to_port(gpio), + at91_gpio_to_pin(gpio), value); + + return 0; +} |