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feat(i2s): support to select PDM data format

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This commit is contained in:
laokaiyao
2024-11-21 19:04:55 +08:00
parent 390745c999
commit 9b779d8b3c
37 changed files with 863 additions and 254 deletions
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components/hal/i2s_hal.c
+39 -26
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -8,6 +8,7 @@
// The HAL layer for I2S (common part)
#include "soc/soc.h"
#include "hal/assert.h"
#include "hal/i2s_hal.h"
#if SOC_I2S_HW_VERSION_2 && (SOC_I2S_SUPPORTS_PDM_TX || SOC_I2S_SUPPORTS_PDM_RX_HP_FILTER)
@@ -217,11 +218,13 @@ void i2s_hal_pdm_set_tx_slot(i2s_hal_context_t *hal, bool is_slave, const i2s_ha
i2s_ll_tx_set_slave_mod(hal->dev, is_slave); //TX Slave
i2s_ll_tx_enable_msb_shift(hal->dev, false);
i2s_ll_tx_set_pdm_prescale(hal->dev, slot_cfg->pdm_tx.sd_prescale);
i2s_ll_tx_set_pdm_hp_scale(hal->dev, slot_cfg->pdm_tx.hp_scale);
i2s_ll_tx_set_pdm_lp_scale(hal->dev, slot_cfg->pdm_tx.lp_scale);
i2s_ll_tx_set_pdm_sinc_scale(hal->dev, slot_cfg->pdm_tx.sinc_scale);
i2s_ll_tx_set_pdm_sd_scale(hal->dev, slot_cfg->pdm_tx.sd_scale);
if (slot_cfg->pdm_tx.data_fmt == I2S_PDM_DATA_FMT_PCM) {
i2s_ll_tx_set_pdm_prescale(hal->dev, slot_cfg->pdm_tx.sd_prescale);
i2s_ll_tx_set_pdm_hp_scale(hal->dev, slot_cfg->pdm_tx.hp_scale);
i2s_ll_tx_set_pdm_lp_scale(hal->dev, slot_cfg->pdm_tx.lp_scale);
i2s_ll_tx_set_pdm_sinc_scale(hal->dev, slot_cfg->pdm_tx.sinc_scale);
i2s_ll_tx_set_pdm_sd_scale(hal->dev, slot_cfg->pdm_tx.sd_scale);
}
#if SOC_I2S_HW_VERSION_1
uint32_t slot_bit_width = (int)slot_cfg->slot_bit_width < (int)slot_cfg->data_bit_width ?
@@ -244,20 +247,25 @@ void i2s_hal_pdm_set_tx_slot(i2s_hal_context_t *hal, bool is_slave, const i2s_ha
i2s_ll_tx_set_ws_idle_pol(hal->dev, false);
/* Slot mode seems not take effect according to the test, leave it default here */
i2s_ll_tx_pdm_slot_mode(hal->dev, is_mono, false, I2S_PDM_SLOT_BOTH);
uint32_t param0;
uint32_t param5;
s_i2s_hal_get_cut_off_coef(slot_cfg->pdm_tx.hp_cut_off_freq_hzx10, &param0, &param5);
i2s_ll_tx_enable_pdm_hp_filter(hal->dev, slot_cfg->pdm_tx.hp_en);
i2s_ll_tx_set_pdm_hp_filter_param0(hal->dev, param0);
i2s_ll_tx_set_pdm_hp_filter_param5(hal->dev, param5);
i2s_ll_tx_set_pdm_sd_dither(hal->dev, slot_cfg->pdm_tx.sd_dither);
i2s_ll_tx_set_pdm_sd_dither2(hal->dev, slot_cfg->pdm_tx.sd_dither2);
if (slot_cfg->pdm_tx.data_fmt == I2S_PDM_DATA_FMT_PCM) {
uint32_t param0;
uint32_t param5;
s_i2s_hal_get_cut_off_coef(slot_cfg->pdm_tx.hp_cut_off_freq_hzx10, &param0, &param5);
i2s_ll_tx_enable_pdm_hp_filter(hal->dev, slot_cfg->pdm_tx.hp_en);
i2s_ll_tx_set_pdm_hp_filter_param0(hal->dev, param0);
i2s_ll_tx_set_pdm_hp_filter_param5(hal->dev, param5);
i2s_ll_tx_set_pdm_sd_dither(hal->dev, slot_cfg->pdm_tx.sd_dither);
i2s_ll_tx_set_pdm_sd_dither2(hal->dev, slot_cfg->pdm_tx.sd_dither2);
}
#endif
}
void i2s_hal_pdm_enable_tx_channel(i2s_hal_context_t *hal)
void i2s_hal_pdm_enable_tx_channel(i2s_hal_context_t *hal, bool pcm2pdm_en)
{
i2s_ll_tx_enable_pdm(hal->dev);
#if !SOC_I2S_SUPPORTS_PCM2PDM
HAL_ASSERT(!pcm2pdm_en);
#endif
i2s_ll_tx_enable_pdm(hal->dev, pcm2pdm_en);
}
#endif
@@ -289,20 +297,25 @@ void i2s_hal_pdm_set_rx_slot(i2s_hal_context_t *hal, bool is_slave, const i2s_ha
#endif // SOC_I2S_HW_VERSION_1
#if SOC_I2S_SUPPORTS_PDM_RX_HP_FILTER
uint32_t param0;
uint32_t param5;
s_i2s_hal_get_cut_off_coef(slot_cfg->pdm_rx.hp_cut_off_freq_hzx10, &param0, &param5);
i2s_ll_rx_enable_pdm_hp_filter(hal->dev, slot_cfg->pdm_rx.hp_en);
i2s_ll_rx_set_pdm_hp_filter_param0(hal->dev, param0);
i2s_ll_rx_set_pdm_hp_filter_param5(hal->dev, param5);
/* Set the amplification number, the default and the minimum value is 1. 0 will mute the channel */
i2s_ll_rx_set_pdm_amplify_num(hal->dev, slot_cfg->pdm_rx.amplify_num ? slot_cfg->pdm_rx.amplify_num : 1);
if (slot_cfg->pdm_rx.data_fmt != I2S_PDM_DATA_FMT_RAW) {
uint32_t param0;
uint32_t param5;
s_i2s_hal_get_cut_off_coef(slot_cfg->pdm_rx.hp_cut_off_freq_hzx10, &param0, &param5);
i2s_ll_rx_enable_pdm_hp_filter(hal->dev, slot_cfg->pdm_rx.hp_en);
i2s_ll_rx_set_pdm_hp_filter_param0(hal->dev, param0);
i2s_ll_rx_set_pdm_hp_filter_param5(hal->dev, param5);
/* Set the amplification number, the default and the minimum value is 1. 0 will mute the channel */
i2s_ll_rx_set_pdm_amplify_num(hal->dev, slot_cfg->pdm_rx.amplify_num ? slot_cfg->pdm_rx.amplify_num : 1);
}
#endif // SOC_I2S_SUPPORTS_PDM_RX_HP_FILTER
}
void i2s_hal_pdm_enable_rx_channel(i2s_hal_context_t *hal)
void i2s_hal_pdm_enable_rx_channel(i2s_hal_context_t *hal, bool pdm2pcm_en)
{
i2s_ll_rx_enable_pdm(hal->dev);
#if !SOC_I2S_SUPPORTS_PDM2CDM
HAL_ASSERT(!pdm2pcm_en);
#endif
i2s_ll_rx_enable_pdm(hal->dev, pdm2pcm_en);
}
#endif