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rmt: Add void * argument for end-of-transmission callback

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Ref https://github.com/espressif/esp-idf/pull/1174
This commit is contained in:
Angus Gratton 2018-01-05 17:10:37 +11:00 committed by Angus Gratton
parent 1066c74b74
commit 2227c44254
2 changed files with 20 additions and 10 deletions
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17
components/driver/include/driver/rmt.h
View File

@ -119,7 +119,15 @@ typedef struct {
typedef intr_handle_t rmt_isr_handle_t; typedef intr_handle_t rmt_isr_handle_t;
typedef void (*rmt_tx_end_t)(rmt_channel_t channel); typedef void (*rmt_tx_end_fn_t)(rmt_channel_t channel, void *arg);
/**
* @brief Structure encapsulating a RMT TX end callback
*/
typedef struct {
rmt_tx_end_fn_t function; /*!< Function which is called on RMT TX end */
void *arg; /*!< Optional argument passed to function */
} rmt_tx_end_callback_t;
/** /**
* @brief Set RMT clock divider, channel clock is divided from source clock. * @brief Set RMT clock divider, channel clock is divided from source clock.
@ -711,11 +719,12 @@ esp_err_t rmt_get_ringbuf_handle(rmt_channel_t channel, RingbufHandle_t* buf_han
* *
* @note Requires rmt_driver_install to install the default ISR handler. * @note Requires rmt_driver_install to install the default ISR handler.
* *
* @param fn Function to be called from the default interrupt handler or NULL. * @param function Function to be called from the default interrupt handler or NULL.
* @param arg Argument which will be provided to the callback when it is called.
* *
* @return the previous handler (or NULL if there was none) * @return the previous callback settings (members will be set to NULL if there was none)
*/ */
rmt_tx_end_t rmt_register_tx_end_callback(rmt_tx_end_t fn); rmt_tx_end_callback_t rmt_register_tx_end_callback(rmt_tx_end_fn_t function, void *arg);
/* /*

13
components/driver/rmt.c
View File

@ -76,7 +76,7 @@ typedef struct {
rmt_obj_t* p_rmt_obj[RMT_CHANNEL_MAX] = {0}; rmt_obj_t* p_rmt_obj[RMT_CHANNEL_MAX] = {0};
// Event called when transmission is ended // Event called when transmission is ended
static rmt_tx_end_t rmt_tx_end_callback = NULL; static rmt_tx_end_callback_t rmt_tx_end_callback;
static void rmt_set_tx_wrap_en(rmt_channel_t channel, bool en) static void rmt_set_tx_wrap_en(rmt_channel_t channel, bool en)
{ {
@ -551,8 +551,8 @@ static void IRAM_ATTR rmt_driver_isr_default(void* arg)
p_rmt->tx_len_rem = 0; p_rmt->tx_len_rem = 0;
p_rmt->tx_offset = 0; p_rmt->tx_offset = 0;
p_rmt->tx_sub_len = 0; p_rmt->tx_sub_len = 0;
if(rmt_tx_end_callback != NULL) { if(rmt_tx_end_callback.function != NULL) {
rmt_tx_end_callback(channel); rmt_tx_end_callback.function(channel, rmt_tx_end_callback.arg);
} }
break; break;
//RX_END //RX_END
@ -777,9 +777,10 @@ esp_err_t rmt_get_ringbuf_handle(rmt_channel_t channel, RingbufHandle_t* buf_han
return ESP_OK; return ESP_OK;
} }
rmt_tx_end_t rmt_register_tx_end_callback(rmt_tx_end_t handler) rmt_tx_end_callback_t rmt_register_tx_end_callback(rmt_tx_end_fn_t function, void *arg)
{ {
rmt_tx_end_t previous = rmt_tx_end_callback; rmt_tx_end_callback_t previous = rmt_tx_end_callback;
rmt_tx_end_callback = handler; rmt_tx_end_callback.function = function;
rmt_tx_end_callback.arg = arg;
return previous; return previous;
} }