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feat(twai): sleep retention

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This commit is contained in:
Armando
2024-10-11 14:33:07 +08:00
parent ed91ad56da
commit 2cb5de2172
16 changed files with 276 additions and 21 deletions
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49
components/soc/esp32c6/twai_periph.c
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@@ -1,10 +1,11 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "soc/twai_periph.h"
#include "soc/twai_reg.h"
#include "soc/gpio_sig_map.h"
const twai_controller_signal_conn_t twai_controller_periph_signals = {
@@ -29,3 +30,49 @@ const twai_controller_signal_conn_t twai_controller_periph_signals = {
}
}
};
/**
* TWAI Registers to be saved during sleep retention
* - TWAI_MODE_REG
* - TWAI_INTERRUPT_ENABLE_REG
* - TWAI_BUS_TIMING_0_REG / TWAI_BUS_TIMING_1_REG
* - TWAI_ERR_WARNING_LIMIT_REG
* - TWAI_RX_ERR_CNT_REG
* - TWAI_TX_ERR_CNT_REG
* - TWAI_DATA_x_REG
* - TWAI_CLOCK_DIVIDER_REG
* - TWAI_SW_STANDBY_CFG_REG
* - TWAI_HW_CFG_REG
* - TWAI_HW_STANDBY_CNT_REG
* - TWAI_IDLE_INTR_CNT_REG
* - TWAI_ECO_CFG_REG
* - TWAI_TIMESTAMP_PRESCALER_REG
* - TWAI_TIMESTAMP_CFG_REG
*/
#define TWAI_RETENTION_REGS_CNT 28
#define TWAI_RETENTION_REGS_BASE(i) REG_TWAI_BASE(i)
static const uint32_t twai_regs_map[4] = {0x9fffe0d1, 0xdf, 0x0, 0x0};
#define TWAI_SLEEP_RETENTION_ENTRIES(id) { \
[0] = { .config = REGDMA_LINK_ADDR_MAP_INIT(REGDMA_TWAI_LINK(0x00), \
TWAI_RETENTION_REGS_BASE(id), TWAI_RETENTION_REGS_BASE(id), \
TWAI_RETENTION_REGS_CNT, 0, 0, \
twai_regs_map[0], twai_regs_map[1], \
twai_regs_map[2], twai_regs_map[3]), \
.owner = ENTRY(0) | ENTRY(2) }, \
}
static const regdma_entries_config_t twai0_regs_retention[] = TWAI_SLEEP_RETENTION_ENTRIES(0);
static const regdma_entries_config_t twai1_regs_retention[] = TWAI_SLEEP_RETENTION_ENTRIES(1);
const twai_reg_retention_info_t twai_reg_retention_info[SOC_TWAI_CONTROLLER_NUM] = {
[0] = {
.module_id = SLEEP_RETENTION_MODULE_TWAI0,
.entry_array = twai0_regs_retention,
.array_size = ARRAY_SIZE(twai0_regs_retention)
},
[1] = {
.module_id = SLEEP_RETENTION_MODULE_TWAI1,
.entry_array = twai1_regs_retention,
.array_size = ARRAY_SIZE(twai1_regs_retention)
},
};