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feat(rmt): introduce RMT_ENCODER_FUNC_ATTR for encoder functions

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Closes https://github.com/espressif/esp-idf/issues/15832
This commit is contained in:
morris
2025-04-23 15:37:54 +08:00
parent 182b33efb2
commit ae5f8e550c
19 changed files with 88 additions and 33 deletions
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25
components/esp_driver_rmt/src/rmt_encoder_bs.c
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@@ -14,6 +14,7 @@ typedef struct rmt_bs_encoder_t {
bitscrambler_handle_t bs; // BitScrambler handle
} rmt_bs_encoder_t;
RMT_ENCODER_FUNC_ATTR
static esp_err_t rmt_bs_encoder_reset(rmt_encoder_t *encoder)
{
rmt_bs_encoder_t *bs_encoder = __containerof(encoder, rmt_bs_encoder_t, base);
@@ -23,14 +24,7 @@ static esp_err_t rmt_bs_encoder_reset(rmt_encoder_t *encoder)
return ESP_OK;
}
static esp_err_t rmt_del_bs_encoder(rmt_encoder_t *encoder)
{
rmt_bs_encoder_t *bs_encoder = __containerof(encoder, rmt_bs_encoder_t, base);
bitscrambler_free(bs_encoder->bs);
free(bs_encoder);
return ESP_OK;
}
RMT_ENCODER_FUNC_ATTR
static size_t rmt_encode_bs(rmt_encoder_t *encoder, rmt_channel_handle_t channel, const void *input_raw,
size_t data_size, rmt_encode_state_t *ret_state)
{
@@ -109,11 +103,24 @@ static size_t rmt_encode_bs(rmt_encoder_t *encoder, rmt_channel_handle_t channel
return copy_len;
}
static esp_err_t rmt_del_bs_encoder(rmt_encoder_t *encoder)
{
rmt_bs_encoder_t *bs_encoder = __containerof(encoder, rmt_bs_encoder_t, base);
bitscrambler_free(bs_encoder->bs);
free(bs_encoder);
return ESP_OK;
}
esp_err_t rmt_new_bitscrambler_encoder(const rmt_bs_encoder_config_t *config, rmt_encoder_handle_t *ret_encoder)
{
esp_err_t ret = ESP_OK;
rmt_bs_encoder_t *encoder = NULL;
ESP_GOTO_ON_FALSE(config && ret_encoder, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
ESP_RETURN_ON_FALSE(config && ret_encoder, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
// bitscrambler function is used under RMT TX ISR context
// if the cache is disabled, all functions called by ISR must be in IRAM
#if CONFIG_RMT_TX_ISR_CACHE_SAFE && !CONFIG_BITSCRAMBLER_CTRL_FUNC_IN_IRAM
ESP_RETURN_ON_FALSE(false, ESP_ERR_INVALID_STATE, TAG, "CONFIG_BITSCRAMBLER_CTRL_FUNC_IN_IRAM must be enabled");
#endif
encoder = rmt_alloc_encoder_mem(sizeof(rmt_bs_encoder_t));
ESP_GOTO_ON_FALSE(encoder, ESP_ERR_NO_MEM, err, TAG, "no mem for bitscrambler encoder");