From: Nathael Pajani <nathael.pajani@ed3l.fr>
Date: Sun, 22 Feb 2015 01:50:14 +0000 (+0100)
Subject: Add some gpio helper functions. Note that these are not very effective unless the... 
X-Git-Url: http://git.techno-innov.fr/?a=commitdiff_plain;h=2d435467cae4356843c00d97e6f48d6b95086c11;p=soft%2Flpc122x%2Fcore

Add some gpio helper functions. Note that these are not very effective unless the compiler does some optimisations when called multiple times from the same function.
---

diff --git a/include/drivers/gpio.h b/include/drivers/gpio.h
index 5e2d1a5..6d14312 100644
--- a/include/drivers/gpio.h
+++ b/include/drivers/gpio.h
@@ -60,6 +60,31 @@ void remove_gpio_callback(const struct pio* gpio);
 void gpio_on(void);
 void gpio_off(void);
 
+#define gpio_dir_in(gpio) \
+{ \
+	struct lpc_gpio* gpio_port = LPC_GPIO_REGS(gpio.port); \
+	gpio_port->data_dir &= ~(1 << gpio->pin);\
+}
+
+#define gpio_dir_out(gpio) \
+{ \
+	struct lpc_gpio* gpio_port = LPC_GPIO_REGS(gpio.port); \
+	gpio_port->data_dir |= (1 << gpio->pin);\
+}
+
+
+#define gpio_set(gpio) \
+{ \
+	struct lpc_gpio* gpio_port = LPC_GPIO_REGS(gpio.port); \
+	gpio_port->set = (1 << gpio->pin);\
+}
+
+#define gpio_clear(gpio) \
+{ \
+	struct lpc_gpio* gpio_port = LPC_GPIO_REGS(gpio.port); \
+	gpio_port->clear = (1 << gpio.pin);\
+}
+
 
 /* GPIO Configuration
  * This function calls the config_pio() function for the gpio with the given