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rmt: support invert RMT signal by GPIO matrix

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This commit is contained in:
morris
2021-02-19 17:38:03 +08:00
parent 7b37158ede
commit efa92cb204
3 changed files with 34 additions and 11 deletions
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28
components/driver/include/driver/rmt.h
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@@ -29,6 +29,7 @@ extern "C" {
#include "hal/rmt_types.h"
#define RMT_CHANNEL_FLAGS_AWARE_DFS (1 << 0) /*!< Channel can work during APB clock scaling */
#define RMT_CHANNEL_FLAGS_INVERT_SIG (1 << 1) /*!< Invert RMT signal */
/** @cond */
#define RMT_CHANNEL_FLAGS_ALWAYS_ON RMT_CHANNEL_FLAGS_AWARE_DFS /*!< Deprecated name, defined here for compatibility */
@@ -572,17 +573,18 @@ esp_err_t rmt_set_tx_intr_en(rmt_channel_t channel, bool en);
esp_err_t rmt_set_tx_thr_intr_en(rmt_channel_t channel, bool en, uint16_t evt_thresh);
/**
* @brief Set RMT pin
* @brief Configure the GPIO used by RMT channel
*
* @param channel RMT channel
* @param mode TX or RX mode for RMT
* @param gpio_num GPIO number to transmit or receive the signal.
* @param mode RMT mode, either RMT_MODE_TX or RMT_MODE_RX
* @param gpio_num GPIO number, which is connected with certain RMT signal
* @param invert_signal Invert RMT signal physically by GPIO matrix
*
* @return
* - ESP_ERR_INVALID_ARG Parameter error
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Configure RMT GPIO failed because of wrong parameter
* - ESP_OK Configure RMT GPIO successfully
*/
esp_err_t rmt_set_pin(rmt_channel_t channel, rmt_mode_t mode, gpio_num_t gpio_num);
esp_err_t rmt_set_gpio(rmt_channel_t channel, rmt_mode_t mode, gpio_num_t gpio_num, bool invert_signal);
/**
* @brief Configure RMT parameters
@@ -903,6 +905,20 @@ __attribute__((deprecated("interrupt should be handled by driver")));
void rmt_clr_intr_enable_mask(uint32_t mask)
__attribute__((deprecated("interrupt should be handled by driver")));
/**
* @brief Set RMT pin
*
* @param channel RMT channel
* @param mode TX or RX mode for RMT
* @param gpio_num GPIO number to transmit or receive the signal.
*
* @return
* - ESP_ERR_INVALID_ARG Parameter error
* - ESP_OK Success
*/
esp_err_t rmt_set_pin(rmt_channel_t channel, rmt_mode_t mode, gpio_num_t gpio_num)
__attribute__((deprecated("use rmt_set_gpio instead")));
#ifdef __cplusplus
}
#endif