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driver(rmt):Fix rmt_tx_stop bug.

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This commit is contained in:
kooho 2018-02-24 16:36:21 +08:00
parent b888032a8c
commit a8d26d7e4d
1 changed files with 14 additions and 3 deletions
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17
components/driver/rmt.c
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@ -66,6 +66,7 @@ typedef struct {
int tx_offset;
int tx_len_rem;
int tx_sub_len;
bool wait_done; //Mark whether wait tx done.
rmt_channel_t channel;
const rmt_item32_t* tx_data;
xSemaphoreHandle tx_sem;
@ -181,7 +182,10 @@ esp_err_t rmt_tx_stop(rmt_channel_t channel)
{
RMT_CHECK(channel < RMT_CHANNEL_MAX, RMT_CHANNEL_ERROR_STR, ESP_ERR_INVALID_ARG);
portENTER_CRITICAL(&rmt_spinlock);
RMTMEM.chan[channel].data32[0].val = 0;
RMT.conf_ch[channel].conf1.tx_start = 0;
RMT.conf_ch[channel].conf1.mem_rd_rst = 1;
RMT.conf_ch[channel].conf1.mem_rd_rst = 0;
portEXIT_CRITICAL(&rmt_spinlock);
return ESP_OK;
}
@ -548,6 +552,8 @@ static void IRAM_ATTR rmt_driver_isr_default(void* arg)
//TX END
case 0:
xSemaphoreGiveFromISR(p_rmt->tx_sem, &HPTaskAwoken);
RMT.conf_ch[channel].conf1.mem_rd_rst = 1;
RMT.conf_ch[channel].conf1.mem_rd_rst = 0;
if(HPTaskAwoken == pdTRUE) {
portYIELD_FROM_ISR();
}
@ -635,8 +641,10 @@ esp_err_t rmt_driver_uninstall(rmt_channel_t channel)
if(p_rmt_obj[channel] == NULL) {
return ESP_OK;
}
xSemaphoreTake(p_rmt_obj[channel]->tx_sem, portMAX_DELAY);
//Avoid blocking here(when the interrupt is disabled and do not wait tx done).
if(p_rmt_obj[channel]->wait_done) {
xSemaphoreTake(p_rmt_obj[channel]->tx_sem, portMAX_DELAY);
}
rmt_set_rx_intr_en(channel, 0);
rmt_set_err_intr_en(channel, 0);
rmt_set_tx_intr_en(channel, 0);
@ -695,6 +703,7 @@ esp_err_t rmt_driver_install(rmt_channel_t channel, size_t rx_buf_size, int intr
p_rmt_obj[channel]->channel = channel;
p_rmt_obj[channel]->tx_offset = 0;
p_rmt_obj[channel]->tx_sub_len = 0;
p_rmt_obj[channel]->wait_done = false;
if(p_rmt_obj[channel]->tx_sem == NULL) {
p_rmt_obj[channel]->tx_sem = xSemaphoreCreateBinary();
@ -748,9 +757,10 @@ esp_err_t rmt_write_items(rmt_channel_t channel, const rmt_item32_t* rmt_item, i
} else {
rmt_fill_memory(channel, rmt_item, len_rem, 0);
RMTMEM.chan[channel].data32[len_rem].val = 0;
len_rem = 0;
p_rmt->tx_len_rem = 0;
}
rmt_tx_start(channel, true);
p_rmt->wait_done = wait_tx_done;
if(wait_tx_done) {
xSemaphoreTake(p_rmt->tx_sem, portMAX_DELAY);
xSemaphoreGive(p_rmt->tx_sem);
@ -763,6 +773,7 @@ esp_err_t rmt_wait_tx_done(rmt_channel_t channel, TickType_t wait_time)
RMT_CHECK(channel < RMT_CHANNEL_MAX, RMT_CHANNEL_ERROR_STR, ESP_ERR_INVALID_ARG);
RMT_CHECK(p_rmt_obj[channel] != NULL, RMT_DRIVER_ERROR_STR, ESP_FAIL);
if(xSemaphoreTake(p_rmt_obj[channel]->tx_sem, wait_time) == pdTRUE) {
p_rmt_obj[channel]->wait_done = false;
xSemaphoreGive(p_rmt_obj[channel]->tx_sem);
return ESP_OK;
}