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feat(driver_twai): new driver sleep retention support

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This commit is contained in:
wanckl
2026-04-01 10:56:32 +08:00
committed by morris
parent 5be29de6e0
commit f9575867d8
13 changed files with 396 additions and 12 deletions
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components/soc/esp32c5/include/soc/Kconfig.soc_caps.in
+4
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@@ -1387,6 +1387,10 @@ config SOC_TWAI_SUPPORT_TIMESTAMP
bool
default y
config SOC_TWAI_SUPPORT_SLEEP_RETENTION
bool
default y
config SOC_EFUSE_DIS_PAD_JTAG
bool
default y
components/soc/esp32c5/include/soc/retention_periph_defs.h
+4
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@@ -45,6 +45,8 @@ typedef enum periph_retention_module {
SLEEP_RETENTION_MODULE_LEDC = 21,
SLEEP_RETENTION_MODULE_PCNT0 = 22,
SLEEP_RETENTION_MODULE_MCPWM0 = 23,
SLEEP_RETENTION_MODULE_TWAI0 = 24,
SLEEP_RETENTION_MODULE_TWAI1 = 25,
/* modem module, which includes WiFi, BLE and 802.15.4 */
SLEEP_RETENTION_MODULE_WIFI_MAC = 26,
@@ -82,6 +84,8 @@ typedef enum periph_retention_module {
: ((m) == SLEEP_RETENTION_MODULE_LEDC) ? true \
: ((m) == SLEEP_RETENTION_MODULE_PCNT0) ? true \
: ((m) == SLEEP_RETENTION_MODULE_MCPWM0) ? true \
: ((m) == SLEEP_RETENTION_MODULE_TWAI0) ? true \
: ((m) == SLEEP_RETENTION_MODULE_TWAI1) ? true \
: false)
#ifdef __cplusplus
components/soc/esp32c5/include/soc/soc_caps.h
+1
View File
@@ -528,6 +528,7 @@
#define SOC_TWAI_SUPPORTS_RX_STATUS 1
#define SOC_TWAI_SUPPORT_FD 1
#define SOC_TWAI_SUPPORT_TIMESTAMP 1
#define SOC_TWAI_SUPPORT_SLEEP_RETENTION 1
/*-------------------------- eFuse CAPS----------------------------*/
#define SOC_EFUSE_DIS_PAD_JTAG 1
components/soc/esp32c5/twai_periph.c
+74 -1
View File
@@ -1,11 +1,12 @@
/*
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2024-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "soc/twai_periph.h"
#include "soc/gpio_sig_map.h"
#include "soc/soc.h"
const twai_controller_signal_conn_t twai_controller_periph_signals = {
.controllers = {
@@ -31,3 +32,75 @@ const twai_controller_signal_conn_t twai_controller_periph_signals = {
},
}
};
/**
* 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)
},
};