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cpu/sam3: use TIMER_CHANNEL_NUMOF

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This commit is contained in:
Benjamin Valentin 2020-06-23 19:23:29 +02:00
parent c8ff026640
commit 51135a50fc
2 changed files with 4 additions and 4 deletions
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2
cpu/sam3/include/periph_cpu.h
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@ -68,7 +68,7 @@ typedef uint32_t gpio_t;
/**
* @brief We use 3 channels for each defined timer
*/
#define TIMER_CHANNELS (3)
#define TIMER_CHANNEL_NUMOF (3)
/**
* @brief The RTT width is fixed to 32-bit

6
cpu/sam3/periph/timer.c
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@ -124,7 +124,7 @@ int timer_init(tim_t tim, unsigned long freq, timer_cb_t cb, void *arg)
int timer_set_absolute(tim_t tim, int channel, unsigned int value)
{
if (channel >= TIMER_CHANNELS) {
if (channel >= TIMER_CHANNEL_NUMOF) {
return -1;
}
(&dev(tim)->TC_CHANNEL[0].TC_RA)[channel] = value;
@ -135,7 +135,7 @@ int timer_set_absolute(tim_t tim, int channel, unsigned int value)
int timer_clear(tim_t tim, int channel)
{
if (channel >= TIMER_CHANNELS) {
if (channel >= TIMER_CHANNEL_NUMOF) {
return -1;
}
@ -163,7 +163,7 @@ static inline void isr_handler(tim_t tim)
{
uint32_t status = dev(tim)->TC_CHANNEL[0].TC_SR;
for (int i = 0; i < TIMER_CHANNELS; i++) {
for (int i = 0; i < TIMER_CHANNEL_NUMOF; i++) {
if (status & (TC_SR_CPAS << i)) {
dev(tim)->TC_CHANNEL[0].TC_IDR = (TC_IDR_CPAS << i);
isr_ctx[tim].cb(isr_ctx[tim].arg, i);