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Merge branch 'bugfix/fix_multi_pdm_rx_slot_clock_issue_v5.3' into 'release/v5.3'

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fix(i2s_pdm): fixed pdm multi slot clock issue (v5.3)

See merge request espressif/esp-idf!41180
This commit is contained in:
morris
2025-08-28 16:22:19 +08:00
parent 3c69865b18 e44278b70e
commit 42eacc6f70
6 changed files with 30 additions and 7 deletions
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12
components/esp_driver_i2s/i2s_pdm.c
View File

@@ -334,13 +334,19 @@ err:
#if SOC_I2S_SUPPORTS_PDM_RX
#define I2S_PDM_RX_BCLK_DIV_MIN 8 /*!< The minimum bclk_div for PDM RX mode */
#define I2S_PDM_RX_CLK_LIMIT_COEFF 128 /*!< The coefficient for the clock limitation */
static esp_err_t i2s_pdm_rx_calculate_clock(i2s_chan_handle_t handle, const i2s_pdm_rx_clk_config_t *clk_cfg, i2s_hal_clock_info_t *clk_info)
{
i2s_pdm_rx_slot_config_t *slot_cfg = &((i2s_pdm_rx_config_t *)(handle->mode_info))->slot_cfg;
uint32_t slot_num = __builtin_popcount(slot_cfg->slot_mask);
uint32_t rate = clk_cfg->sample_rate_hz;
i2s_pdm_rx_clk_config_t *pdm_rx_clk = (i2s_pdm_rx_clk_config_t *)clk_cfg;
clk_info->bclk = rate * I2S_LL_PDM_BCK_FACTOR * (pdm_rx_clk->dn_sample_mode == I2S_PDM_DSR_16S ? 2 : 1);
clk_info->bclk_div = clk_cfg->bclk_div < I2S_PDM_RX_BCLK_DIV_MIN ? I2S_PDM_RX_BCLK_DIV_MIN : clk_cfg->bclk_div;
uint32_t dn_sample_factor = I2S_LL_PDM_BCK_FACTOR * (pdm_rx_clk->dn_sample_mode == I2S_PDM_DSR_16S ? 2 : 1);
clk_info->bclk = rate * dn_sample_factor;
/* Hardware limitation: bclk_div * dn_sample_factor / slot_num >= 96 */
uint32_t bclk_limit = (I2S_PDM_RX_CLK_LIMIT_COEFF * slot_num + dn_sample_factor - 1) / dn_sample_factor;
clk_info->bclk_div = MAX(MAX(bclk_limit, I2S_PDM_RX_BCLK_DIV_MIN), clk_cfg->bclk_div);
clk_info->mclk = clk_info->bclk * clk_info->bclk_div;
clk_info->sclk = i2s_get_source_clk_freq(clk_cfg->clk_src, clk_info->mclk);
clk_info->mclk_div = clk_info->sclk / clk_info->mclk;

1
components/esp_driver_i2s/i2s_private.h
View File

@@ -53,6 +53,7 @@ extern "C" {
#endif
#define I2S_NULL_POINTER_CHECK(tag, p) ESP_RETURN_ON_FALSE((p), ESP_ERR_INVALID_ARG, tag, "input parameter '"#p"' is NULL")
#define MAX(a, b) ((a) > (b) ? (a) : (b))
/**
* @brief i2s channel state for checking if the operation in under right driver state

6
components/hal/esp32c6/include/hal/i2s_ll.h
View File

@@ -220,6 +220,9 @@ static inline void i2s_ll_tx_clk_set_src(i2s_dev_t *hw, i2s_clock_src_t src)
case I2S_CLK_SRC_XTAL:
PCR.i2s_tx_clkm_conf.i2s_tx_clkm_sel = 0;
break;
case I2S_CLK_SRC_PLL_240M:
PCR.i2s_tx_clkm_conf.i2s_tx_clkm_sel = 1;
break;
case I2S_CLK_SRC_PLL_160M:
PCR.i2s_tx_clkm_conf.i2s_tx_clkm_sel = 2;
break;
@@ -246,6 +249,9 @@ static inline void i2s_ll_rx_clk_set_src(i2s_dev_t *hw, i2s_clock_src_t src)
case I2S_CLK_SRC_XTAL:
PCR.i2s_rx_clkm_conf.i2s_rx_clkm_sel = 0;
break;
case I2S_CLK_SRC_PLL_240M:
PCR.i2s_rx_clkm_conf.i2s_rx_clkm_sel = 1;
break;
case I2S_CLK_SRC_PLL_160M:
PCR.i2s_rx_clkm_conf.i2s_rx_clkm_sel = 2;
break;

6
components/hal/esp32s3/include/hal/i2s_ll.h
View File

@@ -233,6 +233,9 @@ static inline void i2s_ll_tx_clk_set_src(i2s_dev_t *hw, i2s_clock_src_t src)
case I2S_CLK_SRC_XTAL:
hw->tx_clkm_conf.tx_clk_sel = 0;
break;
case I2S_CLK_SRC_PLL_240M:
hw->tx_clkm_conf.tx_clk_sel = 1;
break;
case I2S_CLK_SRC_PLL_160M:
hw->tx_clkm_conf.tx_clk_sel = 2;
break;
@@ -258,6 +261,9 @@ static inline void i2s_ll_rx_clk_set_src(i2s_dev_t *hw, i2s_clock_src_t src)
case I2S_CLK_SRC_XTAL:
hw->rx_clkm_conf.rx_clk_sel = 0;
break;
case I2S_CLK_SRC_PLL_240M:
hw->rx_clkm_conf.rx_clk_sel = 1;
break;
case I2S_CLK_SRC_PLL_160M:
hw->rx_clkm_conf.rx_clk_sel = 2;
break;

3
components/soc/esp32c6/include/soc/clk_tree_defs.h
View File

@@ -305,13 +305,14 @@ typedef enum {
/**
* @brief Array initializer for all supported clock sources of I2S
*/
#define SOC_I2S_CLKS {SOC_MOD_CLK_PLL_F160M, SOC_MOD_CLK_XTAL, I2S_CLK_SRC_EXTERNAL}
#define SOC_I2S_CLKS {SOC_MOD_CLK_PLL_F240M, SOC_MOD_CLK_PLL_F160M, SOC_MOD_CLK_XTAL, I2S_CLK_SRC_EXTERNAL}
/**
* @brief I2S clock source enum
*/
typedef enum {
I2S_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F160M, /*!< Select PLL_F160M as the default source clock */
I2S_CLK_SRC_PLL_240M = SOC_MOD_CLK_PLL_F240M, /*!< Select PLL_F240M as the source clock */
I2S_CLK_SRC_PLL_160M = SOC_MOD_CLK_PLL_F160M, /*!< Select PLL_F160M as the source clock */
I2S_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL, /*!< Select XTAL as the source clock */
I2S_CLK_SRC_EXTERNAL = -1, /*!< Select external clock as source clock */

9
components/soc/esp32s3/include/soc/clk_tree_defs.h
View File

@@ -21,7 +21,7 @@ extern "C" {
*
* 2) External 40MHz Crystal Clock: XTAL
*
* 3) Internal 136kHz RC Oscillator: RC_SLOW (usually referrred as RTC in TRM or reg. description)
* 3) Internal 136kHz RC Oscillator: RC_SLOW (usually referred as RTC in TRM or reg. description)
*
* This RC oscillator generates a ~136kHz clock signal output as the RC_SLOW_CLK. The exact frequency of this clock
* can be computed in runtime through calibration.
@@ -291,16 +291,19 @@ typedef enum {
/**
* @brief Array initializer for all supported clock sources of I2S
*/
#define SOC_I2S_CLKS {SOC_MOD_CLK_PLL_F160M, SOC_MOD_CLK_XTAL, I2S_CLK_SRC_EXTERNAL}
#define SOC_I2S_CLKS {SOC_MOD_CLK_PLL_F240M, SOC_MOD_CLK_PLL_F160M, SOC_MOD_CLK_XTAL, I2S_CLK_SRC_EXTERNAL}
/**
* @brief I2S clock source enum
*/
typedef enum {
I2S_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F160M, /*!< Select PLL_F160M as the default source clock */
I2S_CLK_SRC_PLL_240M = SOC_MOD_CLK_PLL_D2, /*!< Select PLL_D2 as the source clock.
It is default to 240MHz while PLL is 480MHz,
but it will be 160MHz if PLL is 320MHz */
I2S_CLK_SRC_PLL_160M = SOC_MOD_CLK_PLL_F160M, /*!< Select PLL_F160M as the source clock */
I2S_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL, /*!< Select XTAL as the source clock */
I2S_CLK_SRC_EXTERNAL = -1, /*!< Select external clock as source clock */
I2S_CLK_SRC_EXTERNAL = -1, /*!< Select external clock as source clock */
} soc_periph_i2s_clk_src_t;
/////////////////////////////////////////////////I2C////////////////////////////////////////////////////////////////////