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-rw-r--r--software/rhmixxx/gpio.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/software/rhmixxx/gpio.c b/software/rhmixxx/gpio.c
index 6edf376..bdc1378 100644
--- a/software/rhmixxx/gpio.c
+++ b/software/rhmixxx/gpio.c
@@ -29,10 +29,28 @@
void gpio_init(void)
{
GPIO_DDR = 0x0F;
- GPIO_PORT = 0xFA;
+ GPIO_PORT = 0xF0;
+}
+
+void gpio_out_on(uint8_t num)
+{
+ if(num < 4)
+ GPIO_PORT |= (1 << num);
+}
+
+void gpio_out_off(uint8_t num)
+{
+ if(num < 4)
+ GPIO_PORT &= ~(1 << num);
+}
+
+void gpio_out_toggle(uint8_t num)
+{
+ if(num < 4)
+ GPIO_PORT ^= (1 << num);
}
void gpio_task(void)
{
- GPIO_PORT ^= 0x0F;
+ // TODO generate events on change of GPI
}