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i2s: add slot sequence table

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Closes: https://github.com/espressif/esp-idf/issues/9208

When I2S is configured into different modes, the slot sequence varies.
This commit updates slot sequence tables and corresponding descriptions
in (both code and programming guide).
This commit is contained in:
laokaiyao
2022-07-05 11:22:27 +08:00
parent 92ea22fe81
commit edee3ee3cd
51 changed files with 795 additions and 292 deletions
Download Patch File Download Diff File Expand all files Collapse all files

117
components/hal/esp32/include/hal/i2s_ll.h
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@@ -745,28 +745,107 @@ static inline void i2s_ll_rx_enable_msb_shift(i2s_dev_t *hw, bool msb_shift_enab
hw->conf.rx_msb_shift = msb_shift_enable;
}
/**
* @brief Set I2S PDM TX chan mode
* @param slot_mask select slot to send data
* @param is_mono is mono mode
*/
static inline void i2s_ll_tx_select_pdm_slot(i2s_dev_t *hw, i2s_pdm_slot_mask_t slot_mask, bool is_mono)
{
if (is_mono) {
switch (slot_mask)
{
case I2S_PDM_SLOT_RIGHT:
hw->conf_chan.tx_chan_mod = 3;
break;
case I2S_PDM_SLOT_LEFT:
hw->conf_chan.tx_chan_mod = 4;
break;
case I2S_PDM_SLOT_BOTH:
hw->conf_chan.tx_chan_mod = 1; // 1 & 2 has same effect
break;
default:
break;
}
} else {
switch (slot_mask)
{
case I2S_PDM_SLOT_RIGHT:
hw->conf_chan.tx_chan_mod = 1;
break;
case I2S_PDM_SLOT_LEFT:
hw->conf_chan.tx_chan_mod = 2;
break;
case I2S_PDM_SLOT_BOTH:
hw->conf_chan.tx_chan_mod = 0;
break;
default:
break;
}
}
}
/**
* @brief Set I2S PDM RX chan mode
* @param slot_mask select slot to send data
*/
static inline void i2s_ll_rx_select_pdm_slot(i2s_dev_t *hw, i2s_pdm_slot_mask_t slot_mask)
{
switch (slot_mask)
{
case I2S_PDM_SLOT_RIGHT:
hw->conf_chan.rx_chan_mod = 1;
break;
case I2S_PDM_SLOT_LEFT:
hw->conf_chan.rx_chan_mod = 2;
break;
case I2S_PDM_SLOT_BOTH:
hw->conf_chan.rx_chan_mod = 0;
break;
default:
break;
}
}
/**
* @brief Set I2S tx chan mode
*
* @param hw Peripheral I2S hardware instance address.
* @param slot_mask select slot to send data
* @param is_msb_right the slot sequence is affected by msb_right according to TRM
* @param is_mono is mono mode
*/
static inline void i2s_ll_tx_select_slot(i2s_dev_t *hw, i2s_std_slot_mask_t slot_mask, bool is_msb_right)
static inline void i2s_ll_tx_select_std_slot(i2s_dev_t *hw, i2s_std_slot_mask_t slot_mask, bool is_mono)
{
switch (slot_mask)
{
case I2S_STD_SLOT_ONLY_RIGHT:
hw->conf_chan.tx_chan_mod = is_msb_right ? 1 : 2;
break;
case I2S_STD_SLOT_ONLY_LEFT:
hw->conf_chan.tx_chan_mod = is_msb_right ? 2 : 1;
break;
case I2S_STD_SLOT_LEFT_RIGHT:
hw->conf_chan.tx_chan_mod = 0;
break;
default:
break;
if (is_mono) {
switch (slot_mask)
{
case I2S_STD_SLOT_RIGHT:
hw->conf_chan.tx_chan_mod = 3;
break;
case I2S_STD_SLOT_LEFT:
hw->conf_chan.tx_chan_mod = 4;
break;
case I2S_STD_SLOT_BOTH:
hw->conf_chan.tx_chan_mod = 1; // 1 & 2 has same effect
break;
default:
break;
}
} else {
switch (slot_mask)
{
case I2S_STD_SLOT_RIGHT:
hw->conf_chan.tx_chan_mod = 1;
break;
case I2S_STD_SLOT_LEFT:
hw->conf_chan.tx_chan_mod = 2;
break;
case I2S_STD_SLOT_BOTH:
hw->conf_chan.tx_chan_mod = 0;
break;
default:
break;
}
}
}
@@ -777,17 +856,17 @@ static inline void i2s_ll_tx_select_slot(i2s_dev_t *hw, i2s_std_slot_mask_t slot
* @param slot_mask select slot to receive data
* @param is_msb_right the slot sequence is affected by msb_right according to TRM
*/
static inline void i2s_ll_rx_select_slot(i2s_dev_t *hw, i2s_std_slot_mask_t slot_mask, bool is_msb_right)
static inline void i2s_ll_rx_select_std_slot(i2s_dev_t *hw, i2s_std_slot_mask_t slot_mask, bool is_msb_right)
{
switch (slot_mask)
{
case I2S_STD_SLOT_ONLY_RIGHT:
case I2S_STD_SLOT_RIGHT:
hw->conf_chan.rx_chan_mod = is_msb_right ? 1 : 2;
break;
case I2S_STD_SLOT_ONLY_LEFT:
case I2S_STD_SLOT_LEFT:
hw->conf_chan.rx_chan_mod = is_msb_right ? 2 : 1;
break;
case I2S_STD_SLOT_LEFT_RIGHT:
case I2S_STD_SLOT_BOTH:
hw->conf_chan.rx_chan_mod = 0;
break;
default: