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feat(pcnt): add sleep retention init

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Currently, due to the lack of sleep callback feature. We only init
sleep module but don't allocate it. Thus the power domain will be
kept during the light sleep. And temporarily disable pcnt sleep
retention support on P4 due to the lack of retention module ID.
This commit is contained in:
Chen Jichang
2024-10-24 18:00:16 +08:00
committed by Chen Ji Chang
parent 1805efb0b2
commit ddf6fea6a2
21 changed files with 356 additions and 4 deletions
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30
components/soc/esp32c6/pcnt_periph.c
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@@ -1,11 +1,12 @@
/*
* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "soc/pcnt_periph.h"
#include "soc/gpio_sig_map.h"
#include "soc/pcnt_reg.h"
const pcnt_signal_conn_t pcnt_periph_signals = {
.groups = {
@@ -64,3 +65,30 @@ const pcnt_signal_conn_t pcnt_periph_signals = {
}
}
};
/**
* PCNT Registers to be saved during sleep retention
* - Configuration registers, e.g.: PCNT_CTRL_REG, PCNT_U0_CONF0_REG, PCNT_U0_CONF1_REG, PCNT_U0_CONF2_REG, PCNT_U1_CONF0_REG...
* - Interrupt enable registers, e.g.: PCNT_INT_ENA_REG
*/
#define PCNT_RETENTION_REGS_CNT 14
#define PCNT_RETENTION_REGS_BASE (DR_REG_PCNT_BASE + 0x0)
static const uint32_t pcnt_regs_map[4] = {0x1040fff, 0x0, 0x0, 0x0};
static const regdma_entries_config_t pcnt_regs_retention[] = {
// backup stage: save configuration registers
// restore stage: restore the configuration registers
[0] = { .config = REGDMA_LINK_ADDR_MAP_INIT(REGDMA_PCNT_LINK(0x00), \
PCNT_RETENTION_REGS_BASE, PCNT_RETENTION_REGS_BASE, \
PCNT_RETENTION_REGS_CNT, 0, 0, \
pcnt_regs_map[0], pcnt_regs_map[1], \
pcnt_regs_map[2], pcnt_regs_map[3]), \
.owner = ENTRY(0) | ENTRY(2) }, \
};
const pcnt_reg_retention_info_t pcnt_reg_retention_info[SOC_PCNT_GROUPS] = {
[0] = {
.regdma_entry_array = pcnt_regs_retention,
.array_size = ARRAY_SIZE(pcnt_regs_retention),
.retention_module = SLEEP_RETENTION_MODULE_PCNT0
},
};