From 6edaea8705c19d2b89e941efcb4257a01fd9725e Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Tue, 13 Aug 2013 14:38:31 +0800 Subject: [PATCH] gpio: atmel: add gpio common API support MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit add gpio common API support for gpio command Signed-off-by: Bo Shen [fix unnecessary cast] Signed-off-by: Andreas Bießmann --- drivers/gpio/at91_gpio.c | 43 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c index 6d227d36fe..6073843b5e 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; +} -- 2.39.5