esp-idf/components/soc/esp32c6/timer_periph.c

/*
 * SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include "soc/timer_periph.h"

const timer_group_signal_conn_t timer_group_periph_signals = {
    .groups = {
        [0] = {
            .module = PERIPH_TIMG0_MODULE,
            .timer_irq_id = {
                [0] = ETS_TG0_T0_LEVEL_INTR_SOURCE,
            }
        },
        [1] = {
            .module = PERIPH_TIMG1_MODULE,
            .timer_irq_id = {
                [0] = ETS_TG1_T0_LEVEL_INTR_SOURCE,
            }
        }
    }
};

#define N_REGS_TGWDT          6 // TIMG_WDTCONFIG0_REG ... TIMG_WDTCONFIG5_REG & TIMG_INT_ENA_TIMERS_REG

static const regdma_entries_config_t tg0_wdt_regs_retention[] = {
    /*Timer group backup. should get of write project firstly. wdt used by RTOS.*/
    [0] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG0_WDT_LINK(0x00), TIMG_WDTWPROTECT_REG(0),   TIMG_WDT_WKEY_VALUE,     TIMG_WDT_WKEY_M,           1, 0), .owner = ENTRY(0) | ENTRY(2) },
    [1] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG0_WDT_LINK(0x01), TIMG_WDTCONFIG0_REG(0),    TIMG_WDTCONFIG0_REG(0),  N_REGS_TGWDT,              0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [2] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG0_WDT_LINK(0x03), TIMG_WDTCONFIG0_REG(0),    TIMG_WDT_CONF_UPDATE_EN, TIMG_WDT_CONF_UPDATE_EN_M, 1, 0), .owner = ENTRY(0) | ENTRY(2) },
    [3] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG0_WDT_LINK(0x03), TIMG_WDTFEED_REG(0),       TIMG_WDT_FEED,           TIMG_WDT_FEED_M,           1, 0), .owner = ENTRY(0) | ENTRY(2) },
    [4] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG0_WDT_LINK(0x02), TIMG_INT_ENA_TIMERS_REG(0),TIMG_INT_ENA_TIMERS_REG(0), 1,                      0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [5] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG0_WDT_LINK(0x04), TIMG_WDTWPROTECT_REG(0),   0,                       TIMG_WDT_WKEY_M,           1, 0), .owner = ENTRY(0) | ENTRY(2) },
};

static const regdma_entries_config_t tg1_wdt_regs_retention[] = {
    /*Timer group0 backup. T0_wdt should get of write project firstly. wdt used by RTOS.*/
    [0] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG1_WDT_LINK(0x00), TIMG_WDTWPROTECT_REG(1),   TIMG_WDT_WKEY_VALUE,     TIMG_WDT_WKEY_M,           1, 0), .owner = ENTRY(0) | ENTRY(2) },
    [1] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG1_WDT_LINK(0x02), TIMG_INT_ENA_TIMERS_REG(1),TIMG_INT_ENA_TIMERS_REG(1), 1,                      0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [2] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG1_WDT_LINK(0x01), TIMG_WDTCONFIG0_REG(1),    TIMG_WDTCONFIG0_REG(1),  N_REGS_TGWDT,              0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [3] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG1_WDT_LINK(0x03), TIMG_WDTCONFIG0_REG(1),    TIMG_WDT_CONF_UPDATE_EN, TIMG_WDT_CONF_UPDATE_EN_M, 1, 0), .owner = ENTRY(0) | ENTRY(2) },
    [4] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG0_WDT_LINK(0x03), TIMG_WDTFEED_REG(1),       TIMG_WDT_FEED,           TIMG_WDT_FEED_M,           1, 0), .owner = ENTRY(0) | ENTRY(2) },
    [5] = { .config = REGDMA_LINK_WRITE_INIT     (REGDMA_TG1_WDT_LINK(0x04), TIMG_WDTWPROTECT_REG(1),   0,                       TIMG_WDT_WKEY_M,           1, 0), .owner = ENTRY(0) | ENTRY(2) },
};

/*  Registers in retention context:
 *      TIMG_T0CONFIG_REG
 *      TIMG_T0ALARMLO_REG
 *      TIMG_T0ALARMHI_REG
 *      TIMG_INT_ENA_TIMERS_REG
 *      TIMG_REGCLK_REG
 */
#define N_REGS_TG_TIMER_CFG            5
static const uint32_t tg_timer_regs_map[4] = {0x10000031, 0x80000000, 0, 0};

const regdma_entries_config_t tg0_timer_regs_retention[] = {
    [0] = {
        .config = REGDMA_LINK_ADDR_MAP_INIT(REGDMA_TG0_TIMER_LINK(0x00),         TIMG_T0CONFIG_REG(0),   TIMG_T0CONFIG_REG(0),   N_REGS_TG_TIMER_CFG, 0, 0, \
                                            tg_timer_regs_map[0], tg_timer_regs_map[1], tg_timer_regs_map[2], tg_timer_regs_map[3]),  .owner = ENTRY(0) | ENTRY(2)
    },
    [1] = { .config = REGDMA_LINK_WRITE_INIT(REGDMA_TG0_TIMER_LINK(0x01),        TIMG_T0UPDATE_REG(0),   TIMG_T0_UPDATE,         TIMG_T0_UPDATE_M,    0, 1), .owner = ENTRY(0) | ENTRY(2) },
    [2] = { .config = REGDMA_LINK_WAIT_INIT(REGDMA_TG0_TIMER_LINK(0x02),         TIMG_T0UPDATE_REG(0),   0x0,                    TIMG_T0_UPDATE_M,    0, 1), .owner = ENTRY(0) | ENTRY(2) },
    [3] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG0_TIMER_LINK(0x03),   TIMG_T0LO_REG(0),       TIMG_T0LOADLO_REG(0),   2,                   0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [4] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG0_TIMER_LINK(0x04),   TIMG_T0HI_REG(0),       TIMG_T0LOADHI_REG(0),   2,                   0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [5] = { .config = REGDMA_LINK_WRITE_INIT(REGDMA_TG0_TIMER_LINK(0x05),        TIMG_T0LOAD_REG(0),     0x1,                    TIMG_T0_LOAD_M,      1, 0), .owner = ENTRY(0) | ENTRY(2) },
};

const regdma_entries_config_t tg1_timer_regs_retention[] = {
    [0] = {
        .config = REGDMA_LINK_ADDR_MAP_INIT(REGDMA_TG1_TIMER_LINK(0x00),         TIMG_T0CONFIG_REG(1),   TIMG_T0CONFIG_REG(1),   N_REGS_TG_TIMER_CFG, 0, 0, \
                                            tg_timer_regs_map[0], tg_timer_regs_map[1], tg_timer_regs_map[2], tg_timer_regs_map[3]),  .owner = ENTRY(0) | ENTRY(2)
    },
    [1] = { .config = REGDMA_LINK_WRITE_INIT(REGDMA_TG1_TIMER_LINK(0x01),        TIMG_T0UPDATE_REG(1),   TIMG_T0_UPDATE,         TIMG_T0_UPDATE_M,    0, 1), .owner = ENTRY(0) | ENTRY(2) },
    [2] = { .config = REGDMA_LINK_WAIT_INIT(REGDMA_TG0_TIMER_LINK(0x02),         TIMG_T0UPDATE_REG(0),   0x0,                    TIMG_T0_UPDATE_M,    0, 1), .owner = ENTRY(0) | ENTRY(2) },
    [3] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG1_TIMER_LINK(0x03),   TIMG_T0LO_REG(1),       TIMG_T0LOADLO_REG(1),   2,                   0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [4] = { .config = REGDMA_LINK_CONTINUOUS_INIT(REGDMA_TG1_TIMER_LINK(0x04),   TIMG_T0HI_REG(1),       TIMG_T0LOADHI_REG(1),   2,                   0, 0), .owner = ENTRY(0) | ENTRY(2) },
    [5] = { .config = REGDMA_LINK_WRITE_INIT(REGDMA_TG1_TIMER_LINK(0x05),        TIMG_T0LOAD_REG(1),     0x1,                    TIMG_T0_LOAD_M,      1, 0), .owner = ENTRY(0) | ENTRY(2) },
};

const tg_reg_ctx_link_t tg_wdt_regs_retention[SOC_TIMER_GROUPS] = {
    [0] = {tg0_wdt_regs_retention, ARRAY_SIZE(tg0_wdt_regs_retention)},
    [1] = {tg1_wdt_regs_retention, ARRAY_SIZE(tg1_wdt_regs_retention)},
};

const tg_reg_ctx_link_t tg_timer_regs_retention[SOC_TIMER_GROUPS] = {
    [0] = {tg0_timer_regs_retention, ARRAY_SIZE(tg0_timer_regs_retention)},
    [1] = {tg1_timer_regs_retention, ARRAY_SIZE(tg1_timer_regs_retention)},
};