From d8e2611ed95b6ded088ffa375acd67cfe1f039e4 Mon Sep 17 00:00:00 2001
From: smlng <s@mlng.net>
Date: Fri, 3 Aug 2018 15:15:59 +0200
Subject: [PATCH] cpu/cc2538: refine gpio_init_mux
Introduces a define to inidicate an unused function parameter.
---
cpu/cc2538/include/periph_cpu.h | 4 ++++
cpu/cc2538/periph/gpio.c | 6 +++---
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/cpu/cc2538/include/periph_cpu.h b/cpu/cc2538/include/periph_cpu.h
index 6ebce4cc6f..05e819065a 100644
--- a/cpu/cc2538/include/periph_cpu.h
+++ b/cpu/cc2538/include/periph_cpu.h
@@ -60,6 +60,10 @@ typedef uint32_t gpio_t;
*/
#define GPIO_UNDEF (0xffffffff)
+/**
+ * @brief Custom value to indicate unused parameter in gpio_init_mux
+ */
+#define GPIO_MUX_NONE (0xff)
/**
* @brief Define a custom GPIO_PIN macro
*
diff --git a/cpu/cc2538/periph/gpio.c b/cpu/cc2538/periph/gpio.c
index 0dc3f2ef9b..f9196ed0b6 100644
--- a/cpu/cc2538/periph/gpio.c
+++ b/cpu/cc2538/periph/gpio.c
@@ -264,13 +264,13 @@ void gpio_init_mux(gpio_t pin, uint8_t over, uint8_t sel, uint8_t func)
{
assert(pin != GPIO_UNDEF);
/* configure pin function and multiplexing */
- if (over != MODE_NOTSUP) {
+ if (over != GPIO_MUX_NONE) {
IOC->OVER[_pp_num(pin)] = over;
}
- if (sel != MODE_NOTSUP) {
+ if (sel != GPIO_MUX_NONE) {
IOC->SEL[_pp_num(pin)] = sel;
}
- if (func != MODE_NOTSUP) {
+ if (func != GPIO_MUX_NONE) {
IOC->PINS[func] = _pp_num(pin);
}
/* enable alternative function mode */
--
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