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components/driver/rmt: Add const qualifier for config and tx data.

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This commit is contained in:
devsaurus 2017-04-05 23:08:55 +02:00 committed by Ivan Grokhotkov
parent cc164b0dc3
commit ae94fe04ef
2 changed files with 9 additions and 9 deletions
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6
components/driver/include/driver/rmt.h
View File

@ -564,7 +564,7 @@ esp_err_t rmt_set_pin(rmt_channel_t channel, rmt_mode_t mode, gpio_num_t gpio_nu
* - ESP_ERR_INVALID_ARG Parameter error
* - ESP_OK Success
*/
esp_err_t rmt_config(rmt_config_t* rmt_param);
esp_err_t rmt_config(const rmt_config_t* rmt_param);
/**
* @brief register RMT interrupt handler, the handler is an ISR.
@ -612,7 +612,7 @@ esp_err_t rmt_isr_deregister(rmt_isr_handle_t handle);
* - ESP_ERR_INVALID_ARG Parameter error
* - ESP_OK Success
*/
esp_err_t rmt_fill_tx_items(rmt_channel_t channel, rmt_item32_t* item, uint16_t item_num, uint16_t mem_offset);
esp_err_t rmt_fill_tx_items(rmt_channel_t channel, const rmt_item32_t* item, uint16_t item_num, uint16_t mem_offset);
/**
* @brief Initialize RMT driver
@ -670,7 +670,7 @@ esp_err_t rmt_driver_uninstall(rmt_channel_t channel);
* - ESP_ERR_INVALID_ARG Parameter error
* - ESP_OK Success
*/
esp_err_t rmt_write_items(rmt_channel_t channel, rmt_item32_t* rmt_item, int item_num, bool wait_tx_done);
esp_err_t rmt_write_items(rmt_channel_t channel, const rmt_item32_t* rmt_item, int item_num, bool wait_tx_done);
/**
* @brief Wait RMT TX finished.

12
components/driver/rmt.c
View File

@ -61,7 +61,7 @@ typedef struct {
int tx_len_rem;
int tx_sub_len;
rmt_channel_t channel;
rmt_item32_t* tx_data;
const rmt_item32_t* tx_data;
xSemaphoreHandle tx_sem;
RingbufHandle_t tx_buf;
RingbufHandle_t rx_buf;
@ -373,7 +373,7 @@ esp_err_t rmt_set_pin(rmt_channel_t channel, rmt_mode_t mode, gpio_num_t gpio_nu
return ESP_OK;
}
esp_err_t rmt_config(rmt_config_t* rmt_param)
esp_err_t rmt_config(const rmt_config_t* rmt_param)
{
uint8_t mode = rmt_param->rmt_mode;
uint8_t channel = rmt_param->channel;
@ -464,7 +464,7 @@ esp_err_t rmt_config(rmt_config_t* rmt_param)
return ESP_OK;
}
static void IRAM_ATTR rmt_fill_memory(rmt_channel_t channel, rmt_item32_t* item, uint16_t item_num, uint16_t mem_offset)
static void IRAM_ATTR rmt_fill_memory(rmt_channel_t channel, const rmt_item32_t* item, uint16_t item_num, uint16_t mem_offset)
{
portENTER_CRITICAL(&rmt_spinlock);
RMT.apb_conf.fifo_mask = RMT_DATA_MODE_MEM;
@ -475,7 +475,7 @@ static void IRAM_ATTR rmt_fill_memory(rmt_channel_t channel, rmt_item32_t* item,
}
}
esp_err_t rmt_fill_tx_items(rmt_channel_t channel, rmt_item32_t* item, uint16_t item_num, uint16_t mem_offset)
esp_err_t rmt_fill_tx_items(rmt_channel_t channel, const rmt_item32_t* item, uint16_t item_num, uint16_t mem_offset)
{
RMT_CHECK(channel < RMT_CHANNEL_MAX, RMT_CHANNEL_ERROR_STR, (0));
RMT_CHECK((item != NULL), RMT_ADDR_ERROR_STR, ESP_ERR_INVALID_ARG);
@ -589,7 +589,7 @@ static void IRAM_ATTR rmt_driver_isr_default(void* arg)
if(p_rmt->tx_data == NULL) {
//skip
} else {
rmt_item32_t* pdata = p_rmt->tx_data;
const rmt_item32_t* pdata = p_rmt->tx_data;
int len_rem = p_rmt->tx_len_rem;
if(len_rem >= p_rmt->tx_sub_len) {
rmt_fill_memory(channel, pdata, p_rmt->tx_sub_len, p_rmt->tx_offset);
@ -678,7 +678,7 @@ esp_err_t rmt_driver_install(rmt_channel_t channel, size_t rx_buf_size, int intr
return ESP_OK;
}
esp_err_t rmt_write_items(rmt_channel_t channel, rmt_item32_t* rmt_item, int item_num, bool wait_tx_done)
esp_err_t rmt_write_items(rmt_channel_t channel, const rmt_item32_t* rmt_item, int item_num, bool wait_tx_done)
{
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);