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feat(i2s): support i2s retention on C61

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laokaiyao
2024-10-30 15:45:15 +08:00
committed by Kevin (Lao Kaiyao)
parent 9b270c4c7d
commit 059de88f23
4 changed files with 47 additions and 0 deletions
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39
components/soc/esp32c61/i2s_periph.c
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@@ -5,6 +5,7 @@
*/
#include "soc/i2s_periph.h"
#include "soc/i2s_reg.h"
#include "soc/gpio_sig_map.h"
/*
@@ -32,3 +33,41 @@ const i2s_signal_conn_t i2s_periph_signal[SOC_I2S_NUM] = {
.irq = ETS_I2S0_INTR_SOURCE,
}
};
/**
* I2S Registers to be saved during sleep retention
* - I2S_RX_CONF_REG
* - I2S_TX_CONF_REG
* - I2S_RX_CONF1_REG
* - I2S_TX_CONF1_REG
* - I2S_TX_PCM2PDM_CONF_REG
* - I2S_TX_PCM2PDM_CONF1_REG
* - I2S_RX_TDM_CTRL_REG
* - I2S_TX_TDM_CTRL_REG
* - I2S_RXEOF_NUM_REG
* - I2S_ETM_CONF_REG
*/
#define I2S_RETENTION_REGS_CNT 10
#define I2S_RETENTION_REGS_BASE(i) I2S_RX_CONF_REG
static const uint32_t i2s_regs_map[4] = {0x12360f, 0x0, 0x0, 0x0};
#define I2S_SLEEP_RETENTION_ENTRIES(i2s_port) { \
/* Save/restore the register values */ \
[0] = { .config = REGDMA_LINK_ADDR_MAP_INIT( \
REGDMA_I2S_LINK(0x00), \
I2S_RETENTION_REGS_BASE(i2s_port), \
I2S_RETENTION_REGS_BASE(i2s_port), \
I2S_RETENTION_REGS_CNT, 0, 0, \
i2s_regs_map[0], i2s_regs_map[1], \
i2s_regs_map[2], i2s_regs_map[3]), \
.owner = ENTRY(0) | ENTRY(2)}, \
};
static const regdma_entries_config_t i2s0_regs_retention[] = I2S_SLEEP_RETENTION_ENTRIES(0);
const i2s_reg_retention_info_t i2s_reg_retention_info[SOC_I2S_NUM] = {
[0] = {
.retention_module = SLEEP_RETENTION_MODULE_I2S0,
.entry_array = i2s0_regs_retention,
.array_size = ARRAY_SIZE(i2s0_regs_retention)
},
};