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i2s: add XTAL clock source

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This commit is contained in:
laokaiyao
2022-09-15 17:27:57 +08:00
parent 77ce37f235
commit 7197e987cb
26 changed files with 156 additions and 61 deletions
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32
components/hal/esp32c3/include/hal/i2s_ll.h
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@@ -14,6 +14,7 @@
#pragma once
#include <stdbool.h>
#include "hal/misc.h"
#include "hal/assert.h"
#include "soc/i2s_periph.h"
#include "soc/i2s_struct.h"
#include "hal/i2s_types.h"
@@ -23,11 +24,10 @@
extern "C" {
#endif
#define I2S_LL_GET_HW(num) (&I2S0)
#define I2S_LL_GET_HW(num) (((num) == 0)? (&I2S0) : NULL)
#define I2S_LL_TDM_CH_MASK (0xffff)
#define I2S_LL_PDM_BCK_FACTOR (64)
#define I2S_LL_BASE_CLK (2*APB_CLK_FREQ)
#define I2S_LL_MCLK_DIVIDER_BIT_WIDTH (9)
#define I2S_LL_MCLK_DIVIDER_MAX ((1 << I2S_LL_MCLK_DIVIDER_BIT_WIDTH) - 1)
@@ -193,18 +193,40 @@ static inline void i2s_ll_rx_reset_fifo(i2s_dev_t *hw)
*/
static inline void i2s_ll_tx_clk_set_src(i2s_dev_t *hw, i2s_clock_src_t src)
{
hw->tx_clkm_conf.tx_clk_sel = 2;
switch (src)
{
case I2S_CLK_SRC_XTAL:
hw->tx_clkm_conf.tx_clk_sel = 0;
break;
case I2S_CLK_SRC_PLL_160M:
hw->tx_clkm_conf.tx_clk_sel = 2;
break;
default:
HAL_ASSERT(false && "unsupported clock source");
break;
}
}
/**
* @brief Set RX source clock
*
* @param hw Peripheral I2S hardware instance address.
* @param src I2S source clock, ESP32-C3 only support `I2S_CLK_SRC_PLL_160M`
* @param src I2S source clock
*/
static inline void i2s_ll_rx_clk_set_src(i2s_dev_t *hw, i2s_clock_src_t src)
{
hw->rx_clkm_conf.rx_clk_sel = 2;
switch (src)
{
case I2S_CLK_SRC_XTAL:
hw->rx_clkm_conf.rx_clk_sel = 0;
break;
case I2S_CLK_SRC_PLL_160M:
hw->rx_clkm_conf.rx_clk_sel = 2;
break;
default:
hw->rx_clkm_conf.rx_clk_sel = 2;
break;
}
}
/**