drivers: move some drivers to drivers/Makefile

[u-boot] / drivers / gpio / at91_gpio.c

diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c
index 6d227d36fe5fec436df42c551c7fc8a6402554a1..af0978675ea84c77399a4a3e7229a8dc8f4f3f83 100644 (file)
--- a/drivers/gpio/at91_gpio.c
+++ b/drivers/gpio/at91_gpio.c
@@ -1,5 +1,5 @@
 /*
- * Memory Setup stuff - taken from blob memsetup.S
+ * Copyright (C) 2013 Bo Shen <voice.shen@atmel.com>
  *
  * Copyright (C) 2009 Jens Scharsig (js_at_ng@scharsoft.de)
  *
@@ -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;
+}