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https://github.com/espressif/esp-idf.git
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7561d2c5c2
Move per-target I2S regdma retention descriptors out of esp_hal_i2s and into esp_driver_i2s so the driver owns its backup scope and restore sequence.
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "i2s_private.h"
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#include "hal/i2s_periph.h"
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/**
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* I2S Registers to be saved during sleep retention
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* - I2S_RX_CONF_REG
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* - I2S_TX_CONF_REG
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* - I2S_RX_CONF1_REG
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* - I2S_TX_CONF1_REG
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* - I2S_TX_PCM2PDM_CONF_REG
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* - I2S_TX_PCM2PDM_CONF1_REG
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* - I2S_RX_TDM_CTRL_REG
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* - I2S_TX_TDM_CTRL_REG
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* - I2S_RXEOF_NUM_REG
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* - I2S_ETM_CONF_REG
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*/
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#define I2S_RETENTION_REGS_CNT 10
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#define I2S_RETENTION_REGS_BASE(i) I2S_RX_CONF_REG
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static const uint32_t i2s_regs_map[4] = {0x12330f, 0x0, 0x0, 0x0};
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#define I2S_SLEEP_RETENTION_ENTRIES(i2s_port) { \
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/* Save/restore the register values */ \
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[0] = { .config = REGDMA_LINK_ADDR_MAP_INIT( \
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REGDMA_I2S_LINK(0x00), \
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I2S_RETENTION_REGS_BASE(i2s_port), \
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I2S_RETENTION_REGS_BASE(i2s_port), \
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I2S_RETENTION_REGS_CNT, 0, 0, \
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i2s_regs_map[0], i2s_regs_map[1], \
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i2s_regs_map[2], i2s_regs_map[3]), \
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.owner = ENTRY(0)}, \
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};
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static const regdma_entries_config_t i2s0_regs_retention[] = I2S_SLEEP_RETENTION_ENTRIES(0);
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const i2s_reg_retention_info_t i2s_reg_retention_info[I2S_LL_GET(INST_NUM)] = {
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[0] = {
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.retention_module = SLEEP_RETENTION_MODULE_I2S0,
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.entry_array = i2s0_regs_retention,
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.array_size = ARRAY_SIZE(i2s0_regs_retention)
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},
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};
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