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drivers: counter: Add error checking to MCUX CTImer

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Improve the error checking for the set_top_value function.

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
This commit is contained in:
Mahesh Mahadevan 2022-04-28 10:45:41 -05:00 • committed by David Leach
commit 8566b00df3
1 changed files with 9 additions and 11 deletions
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20
drivers/counter/counter_mcux_ctimer.c
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@ -135,27 +135,25 @@ static int mcux_lpc_ctimer_set_top_value(const struct device *dev,
{
const struct mcux_lpc_ctimer_config *config = dev->config;
struct mcux_lpc_ctimer_data *data = dev->data;
bool counter_reset = true;
bool counter_interrupt = true;
data->top_callback = cfg->callback;
data->top_user_data = cfg->user_data;
if (cfg->flags & COUNTER_TOP_CFG_DONT_RESET) {
counter_reset = false;
}
/* If top value specified is 0, then turn off the interrupt */
if (cfg->ticks == 0) {
counter_interrupt = false;
if (!(cfg->flags & COUNTER_TOP_CFG_DONT_RESET)) {
CTIMER_Reset(config->base);
} else if (mcux_lpc_ctimer_read(config->base) >= cfg->ticks) {
if (cfg->flags & COUNTER_TOP_CFG_RESET_WHEN_LATE) {
CTIMER_Reset(config->base);
}
return -ETIME;
}
ctimer_match_config_t match_config = { .matchValue = cfg->ticks,
.enableCounterReset = counter_reset,
.enableCounterReset = true,
.enableCounterStop = false,
.outControl = kCTIMER_Output_NoAction,
.outPinInitState = false,
.enableInterrupt = counter_interrupt };
.enableInterrupt = true };
CTIMER_SetupMatch(config->base, NUM_CHANNELS, &match_config);