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feat(i2s): support to select PDM data format

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This commit is contained in:
laokaiyao
2024-08-15 19:02:42 +08:00
parent 390745c999
commit 9b779d8b3c
37 changed files with 863 additions and 254 deletions
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82
components/hal/esp32c5/include/hal/i2s_ll.h
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@@ -765,15 +765,16 @@ static inline void i2s_ll_rx_enable_std(i2s_dev_t *hw)
}
/**
* @brief Enable TX PDM mode.
* @brief Enable I2S TX PDM mode
*
* @param hw Peripheral I2S hardware instance address.
* @param pcm2pdm_en Set true to enable TX PCM to PDM filter
*/
static inline void i2s_ll_tx_enable_pdm(i2s_dev_t *hw)
static inline void i2s_ll_tx_enable_pdm(i2s_dev_t *hw, bool pcm2pdm_en)
{
hw->tx_conf.tx_pdm_en = true;
hw->tx_conf.tx_tdm_en = false;
hw->tx_pcm2pdm_conf.pcm2pdm_conv_en = true;
hw->tx_pcm2pdm_conf.pcm2pdm_conv_en = pcm2pdm_en;
}
/**
@@ -937,17 +938,86 @@ static inline uint32_t i2s_ll_tx_get_pdm_fs(i2s_dev_t *hw)
/**
* @brief Enable RX PDM mode.
* @note ESP32-C5 doesn't support pdm in rx mode, disable anyway
*
* @param hw Peripheral I2S hardware instance address.
* @param pdm_enable Set true to RX enable PDM mode (ignored)
*/
static inline void i2s_ll_rx_enable_pdm(i2s_dev_t *hw, bool pdm_enable)
{
// Due to the lack of `PDM to PCM` module on ESP32-C5, PDM RX is not available
HAL_ASSERT(!pdm_enable);
hw->rx_conf.rx_pdm_en = 0;
hw->rx_conf.rx_tdm_en = 1;
hw->rx_pdm2pcm_conf.rx_pdm2pcm_en = pdm_enable;
}
/**
* @brief Configure RX PDM downsample
*
* @param hw Peripheral I2S hardware instance address.
* @param dsr PDM downsample configuration parameter
*/
static inline void i2s_ll_rx_set_pdm_dsr(i2s_dev_t *hw, i2s_pdm_dsr_t dsr)
{
hw->rx_pdm2pcm_conf.rx_pdm_sinc_dsr_16_en = dsr;
}
/**
* @brief Get RX PDM downsample configuration
*
* @param hw Peripheral I2S hardware instance address.
* @param dsr Pointer to accept PDM downsample configuration
*/
static inline void i2s_ll_rx_get_pdm_dsr(i2s_dev_t *hw, i2s_pdm_dsr_t *dsr)
{
*dsr = (i2s_pdm_dsr_t)hw->rx_pdm2pcm_conf.rx_pdm_sinc_dsr_16_en;
}
/**
* @brief Configure RX PDM amplify number
* @note This is the amplification number of the digital amplifier,
* which is added after the PDM to PCM conversion result and mainly used for
* amplify the small PDM signal under the VAD scenario
* pcm_result = pdm_input * amplify_num
* pcm_result = 0 if amplify_num = 0
*
* @param hw Peripheral I2S hardware instance address.
* @param amp_num PDM RX amplify number
*/
static inline void i2s_ll_rx_set_pdm_amplify_num(i2s_dev_t *hw, uint32_t amp_num)
{
hw->rx_pdm2pcm_conf.rx_pdm2pcm_amplify_num = amp_num;
}
/**
* @brief Set I2S RX PDM high pass filter param0
*
* @param hw Peripheral I2S hardware instance address.
* @param param The fourth parameter of PDM RX IIR_HP filter stage 1 is (504 + I2S_RX_IIR_HP_MULT12_0[2:0])
*/
static inline void i2s_ll_rx_set_pdm_hp_filter_param0(i2s_dev_t *hw, uint32_t param)
{
hw->rx_pdm2pcm_conf.rx_iir_hp_mult12_0 = param;
}
/**
* @brief Set I2S RX PDM high pass filter param5
*
* @param hw Peripheral I2S hardware instance address.
* @param param The fourth parameter of PDM RX IIR_HP filter stage 2 is (504 + I2S_RX_IIR_HP_MULT12_5[2:0])
*/
static inline void i2s_ll_rx_set_pdm_hp_filter_param5(i2s_dev_t *hw, uint32_t param)
{
hw->rx_pdm2pcm_conf.rx_iir_hp_mult12_5 = param;
}
/**
* @brief Enable I2S RX PDM high pass filter
*
* @param hw Peripheral I2S hardware instance address.
* @param enable Set true to enable I2S RX PDM high pass filter, set false to bypass it
*/
static inline void i2s_ll_rx_enable_pdm_hp_filter(i2s_dev_t *hw, bool enable)
{
hw->rx_pdm2pcm_conf.rx_pdm_hp_bypass = !enable;
}
/**