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feat(driver_twai): new driver sleep retention support

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wanckl
2026-02-28 20:11:32 +08:00
parent 58cd9bcc77
commit 5bcea31dd7
17 changed files with 478 additions and 18 deletions
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components/esp_hal_twai/esp32c5/twai_periph.c
+73 -1
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -30,3 +30,75 @@ const twai_signal_conn_t twai_periph_signals[2] = {
.stand_by_sig = -1,
},
};
/**
* TWAI Registers to be saved during sleep retention
* - TWAIFD_MODE_SETTINGS_REG
* - TWAIFD_STATUS_REG
* - TWAIFD_COMMAND_REG
* - TWAIFD_INT_ENA_SET_REG
* - TWAIFD_INT_ENA_CLR_REG
* - TWAIFD_BTR_REG
* - TWAIFD_BTR_FD_REG
* - TWAIFD_EWL_ERP_FAULT_STATE_REG
* - TWAIFD_REC_TEC_REG
* - TWAIFD_ERR_NORM_ERR_FD_REG
* - TWAIFD_FILTER_A_MASK_REG
* - TWAIFD_FILTER_A_VAL_REG
* - TWAIFD_FILTER_B_MASK_REG
* - TWAIFD_FILTER_B_VAL_REG
* - TWAIFD_FILTER_C_MASK_REG
* - TWAIFD_FILTER_C_VAL_REG
* - TWAIFD_FILTER_RAN_LOW_REG
* - TWAIFD_FILTER_RAN_HIGH_REG
* - TWAIFD_FILTER_CONTROL_FILTER_STATUS_REG
* - TWAIFD_RX_STATUS_RX_SETTINGS_REG
* - TWAIFD_TX_COMMAND_TXTB_INFO_REG
* - TWAIFD_TX_PRIORITY_REG
* - TWAIFD_TRV_DELAY_SSP_CFG_REG
* - TWAIFD_RX_FR_CTR_REG
* - TWAIFD_TX_FR_CTR_REG
*/
#define TWAI_RETENTION_REGS_CNT 25
#define TWAI_RETENTION_REGS_BASE(i) REG_TWAI_BASE(i)
static const uint32_t twai_regs_map[4] = {0xb27fdf37, 0x3, 0x0, 0x0};
// twai timer registers is far away from twai registers, so we need a separate link
// - TWAIFD_TIMER_INT_ENA_REG
// - TWAIFD_TIMER_CFG_REG
#define TWAI_TIMER_RETENTION_REGS_CNT 2
#define TWAI_TIMER_RETENTION_REGS_BASE(i) (REG_TWAI_BASE(i) + 0xfe0)
static const uint32_t twai_timer_regs_map[4] = {0x5, 0x0, 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) }, \
[1] = { .config = REGDMA_LINK_ADDR_MAP_INIT( \
REGDMA_TWAI_LINK(0x01), \
TWAI_TIMER_RETENTION_REGS_BASE(id), TWAI_TIMER_RETENTION_REGS_BASE(id), \
TWAI_TIMER_RETENTION_REGS_CNT, 0, 0, \
twai_timer_regs_map[0], twai_timer_regs_map[1], \
twai_timer_regs_map[2], twai_timer_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[2] = {
[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)
},
};
components/esp_hal_twai/esp32h4/twai_periph.c
+67 -1
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2025-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -20,3 +20,69 @@ const twai_signal_conn_t twai_periph_signals[1] = {
.stand_by_sig = -1,
}
};
/**
* TWAI Registers to be saved during sleep retention
* - TWAIFD_MODE_SETTINGS_REG
* - TWAIFD_STATUS_REG
* - TWAIFD_COMMAND_REG
* - TWAIFD_INT_ENA_SET_REG
* - TWAIFD_INT_ENA_CLR_REG
* - TWAIFD_BTR_REG
* - TWAIFD_BTR_FD_REG
* - TWAIFD_EWL_ERP_FAULT_STATE_REG
* - TWAIFD_REC_TEC_REG
* - TWAIFD_ERR_NORM_ERR_FD_REG
* - TWAIFD_FILTER_A_MASK_REG
* - TWAIFD_FILTER_A_VAL_REG
* - TWAIFD_FILTER_B_MASK_REG
* - TWAIFD_FILTER_B_VAL_REG
* - TWAIFD_FILTER_C_MASK_REG
* - TWAIFD_FILTER_C_VAL_REG
* - TWAIFD_FILTER_RAN_LOW_REG
* - TWAIFD_FILTER_RAN_HIGH_REG
* - TWAIFD_FILTER_CONTROL_FILTER_STATUS_REG
* - TWAIFD_RX_STATUS_RX_SETTINGS_REG
* - TWAIFD_TX_COMMAND_TXTB_INFO_REG
* - TWAIFD_TX_PRIORITY_REG
* - TWAIFD_TRV_DELAY_SSP_CFG_REG
* - TWAIFD_RX_FR_CTR_REG
* - TWAIFD_TX_FR_CTR_REG
*/
#define TWAI_RETENTION_REGS_CNT 25
#define TWAI_RETENTION_REGS_BASE(i) DR_REG_TWAIFD_BASE
static const uint32_t twai_regs_map[4] = {0xb27fdf37, 0x3, 0x0, 0x0};
// twai timer registers is far away from twai registers, so we need a separate link
// - TWAIFD_TIMER_INT_ENA_REG
// - TWAIFD_TIMER_CFG_REG
#define TWAI_TIMER_RETENTION_REGS_CNT 2
#define TWAI_TIMER_RETENTION_REGS_BASE(i) (DR_REG_TWAIFD_BASE + 0xfe0)
static const uint32_t twai_timer_regs_map[4] = {0x5, 0x0, 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) }, \
[1] = { .config = REGDMA_LINK_ADDR_MAP_INIT( \
REGDMA_TWAI_LINK(0x01), \
TWAI_TIMER_RETENTION_REGS_BASE(id), TWAI_TIMER_RETENTION_REGS_BASE(id), \
TWAI_TIMER_RETENTION_REGS_CNT, 0, 0, \
twai_timer_regs_map[0], twai_timer_regs_map[1], \
twai_timer_regs_map[2], twai_timer_regs_map[3]), \
.owner = ENTRY(0) | ENTRY(2) }, \
}
static const regdma_entries_config_t twai0_regs_retention[] = TWAI_SLEEP_RETENTION_ENTRIES(0);
const twai_reg_retention_info_t twai_reg_retention_info[1] = {
[0] = {
.module_id = SLEEP_RETENTION_MODULE_TWAI0,
.entry_array = twai0_regs_retention,
.array_size = ARRAY_SIZE(twai0_regs_retention)
},
};