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esp-idf/components/esp_hw_support/modem_clock.c

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/*
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdint.h>
#include <stdlib.h>
#include <esp_types.h>
#include "sdkconfig.h"
#include "esp_attr.h"
#include "soc/soc.h"
#include "soc/soc_caps.h"
#include "freertos/FreeRTOS.h"
#include "hal/clk_gate_ll.h"
#include "esp_private/esp_modem_clock.h"
#include "esp_private/esp_pmu.h"
#include "esp_sleep.h"
// Please define the frequently called modules in the low bit,
// which will improve the execution efficiency
typedef enum {
MODEM_CLOCK_FE,
MODEM_CLOCK_COEXIST,
MODEM_CLOCK_I2C_MASTER,
#if SOC_WIFI_SUPPORTED
MODEM_CLOCK_WIFI_MAC,
MODEM_CLOCK_WIFI_BB,
#endif
MODEM_CLOCK_ETM,
#if SOC_BT_SUPPORTED
MODEM_CLOCK_BLE_MAC,
MODEM_CLOCK_BLE_BB,
#endif
#if SOC_IEEE802154_SUPPORTED
MODEM_CLOCK_802154_MAC,
#endif
MODEM_CLOCK_DATADUMP,
MODEM_CLOCK_DEVICE_MAX
} modem_clock_device_t;
typedef struct modem_clock_context {
modem_clock_hal_context_t *hal;
portMUX_TYPE lock;
struct {
int16_t refs;
uint16_t reserved; /* reserved for 4 bytes aligned */
void (*configure)(struct modem_clock_context *, bool);
} dev[MODEM_CLOCK_DEVICE_MAX];
/* the low-power clock source for each module */
modem_clock_lpclk_src_t lpclk_src[PERIPH_MODEM_MODULE_NUM];
} modem_clock_context_t;
#if SOC_WIFI_SUPPORTED
static void IRAM_ATTR modem_clock_wifi_mac_configure(modem_clock_context_t *ctx, bool enable)
{
if (enable) {
modem_syscon_ll_enable_wifi_apb_clock(ctx->hal->syscon_dev, enable);
modem_syscon_ll_enable_wifi_mac_clock(ctx->hal->syscon_dev, enable);
}
}
static void IRAM_ATTR modem_clock_wifi_bb_configure(modem_clock_context_t *ctx, bool enable)
{
if (enable) {
modem_syscon_ll_clk_wifibb_configure(ctx->hal->syscon_dev, enable);
}
}
#endif // SOC_WIFI_SUPPORTED
#if SOC_BT_SUPPORTED
static void IRAM_ATTR modem_clock_ble_mac_configure(modem_clock_context_t *ctx, bool enable)
{
modem_syscon_ll_enable_etm_clock(ctx->hal->syscon_dev, enable);
modem_syscon_ll_enable_modem_sec_clock(ctx->hal->syscon_dev, enable);
modem_syscon_ll_enable_ble_timer_clock(ctx->hal->syscon_dev, enable);
}
static void IRAM_ATTR modem_clock_ble_bb_configure(modem_clock_context_t *ctx, bool enable)
{
modem_syscon_ll_enable_bt_apb_clock(ctx->hal->syscon_dev, enable);
modem_syscon_ll_enable_bt_clock(ctx->hal->syscon_dev, enable);
}
#endif // SOC_BT_SUPPORTED
#if SOC_IEEE802154_SUPPORTED
static void IRAM_ATTR modem_clock_ieee802154_mac_configure(modem_clock_context_t *ctx, bool enable)
{
modem_syscon_ll_enable_etm_clock(ctx->hal->syscon_dev, enable);
modem_syscon_ll_enable_ieee802154_apb_clock(ctx->hal->syscon_dev, enable);
modem_syscon_ll_enable_ieee802154_mac_clock(ctx->hal->syscon_dev, enable);
}
#endif // SOC_IEEE802154_SUPPORTED
static void IRAM_ATTR modem_clock_coex_configure(modem_clock_context_t *ctx, bool enable)
{
modem_lpcon_ll_enable_coex_clock(ctx->hal->lpcon_dev, enable);
}
static void IRAM_ATTR modem_clock_fe_configure(modem_clock_context_t *ctx, bool enable)
{
modem_clock_hal_enable_fe_clock(ctx->hal, enable);
}
static void IRAM_ATTR modem_clock_i2c_master_configure(modem_clock_context_t *ctx, bool enable)
{
modem_lpcon_ll_enable_i2c_master_clock(ctx->hal->lpcon_dev, enable);
}
static void IRAM_ATTR modem_clock_etm_configure(modem_clock_context_t *ctx, bool enable)
{
modem_syscon_ll_enable_etm_clock(ctx->hal->syscon_dev, enable);
}
static void IRAM_ATTR modem_clock_data_dump_configure(modem_clock_context_t *ctx, bool enable)
{
modem_syscon_ll_enable_data_dump_clock(ctx->hal->syscon_dev, enable);
modem_syscon_ll_enable_data_dump_mux_clock(ctx->hal->syscon_dev, enable);
}
modem_clock_context_t * __attribute__((weak)) IRAM_ATTR MODEM_CLOCK_instance(void)
{
/* It should be explicitly defined in the internal RAM */
static DRAM_ATTR modem_clock_hal_context_t modem_clock_hal = { .syscon_dev = &MODEM_SYSCON, .lpcon_dev = &MODEM_LPCON };
static DRAM_ATTR modem_clock_context_t modem_clock_context = {
.hal = &modem_clock_hal, .lock = portMUX_INITIALIZER_UNLOCKED,
.dev = {
[MODEM_CLOCK_FE] = { .refs = 0, .configure = modem_clock_fe_configure },
[MODEM_CLOCK_COEXIST] = { .refs = 0, .configure = modem_clock_coex_configure },
[MODEM_CLOCK_I2C_MASTER] = { .refs = 0, .configure = modem_clock_i2c_master_configure },
#if SOC_WIFI_SUPPORTED
[MODEM_CLOCK_WIFI_MAC] = { .refs = 0, .configure = modem_clock_wifi_mac_configure },
[MODEM_CLOCK_WIFI_BB] = { .refs = 0, .configure = modem_clock_wifi_bb_configure },
#endif
[MODEM_CLOCK_ETM] = { .refs = 0, .configure = modem_clock_etm_configure },
#if SOC_BT_SUPPORTED
[MODEM_CLOCK_BLE_MAC] = { .refs = 0, .configure = modem_clock_ble_mac_configure },
[MODEM_CLOCK_BLE_BB] = { .refs = 0, .configure = modem_clock_ble_bb_configure },
#endif
#if SOC_IEEE802154_SUPPORTED
[MODEM_CLOCK_802154_MAC] = { .refs = 0, .configure = modem_clock_ieee802154_mac_configure },
#endif
[MODEM_CLOCK_DATADUMP] = { .refs = 0, .configure = modem_clock_data_dump_configure }
},
.lpclk_src = { [0 ... PERIPH_MODEM_MODULE_NUM - 1] = MODEM_CLOCK_LPCLK_SRC_INVALID }
};
return &modem_clock_context;
}
#if SOC_PM_SUPPORT_PMU_MODEM_STATE
static void IRAM_ATTR modem_clock_domain_power_state_icg_map_init(modem_clock_context_t *ctx)
{
#define ICG_NOGATING_SLEEP (BIT(PMU_HP_ICG_MODEM_CODE_SLEEP))
#define ICG_NOGATING_MODEM (BIT(PMU_HP_ICG_MODEM_CODE_MODEM))
#define ICG_NOGATING_ACTIVE (BIT(PMU_HP_ICG_MODEM_CODE_ACTIVE))
/* the ICG code's bit 0, 1 and 2 indicates the ICG state
* of pmu SLEEP, MODEM and ACTIVE mode respectively */
const uint32_t code[MODEM_CLOCK_DOMAIN_MAX] = {
[MODEM_CLOCK_DOMAIN_MODEM_APB] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_MODEM_PERIPH] = ICG_NOGATING_ACTIVE,
[MODEM_CLOCK_DOMAIN_WIFI] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_BT] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_FE] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_IEEE802154] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_LP_APB] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_I2C_MASTER] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_COEX] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
[MODEM_CLOCK_DOMAIN_WIFIPWR] = ICG_NOGATING_ACTIVE | ICG_NOGATING_MODEM,
};
for (modem_clock_domain_t domain = MODEM_CLOCK_DOMAIN_MODEM_APB; domain < MODEM_CLOCK_DOMAIN_MAX; domain++) {
modem_clock_hal_set_clock_domain_icg_bitmap(ctx->hal, domain, code[domain]);
}
}
void modem_clock_domain_pmu_state_icg_map_init(void)
{
modem_clock_domain_power_state_icg_map_init(MODEM_CLOCK_instance());
}
#endif // #if SOC_PM_SUPPORT_PMU_MODEM_STATE
static void IRAM_ATTR modem_clock_device_enable(modem_clock_context_t *ctx, uint32_t dev_map)
{
int16_t refs = 0;
portENTER_CRITICAL_SAFE(&ctx->lock);
for (int i = 0; dev_map; dev_map >>= 1, i++) {
if (dev_map & BIT(0)) {
refs = ctx->dev[i].refs++;
if (refs == 0) {
(*ctx->dev[i].configure)(ctx, true);
}
}
}
portEXIT_CRITICAL_SAFE(&ctx->lock);
assert(refs >= 0);
}
static void IRAM_ATTR modem_clock_device_disable(modem_clock_context_t *ctx, uint32_t dev_map)
{
int16_t refs = 0;
portENTER_CRITICAL_SAFE(&ctx->lock);
for (int i = 0; dev_map; dev_map >>= 1, i++) {
if (dev_map & BIT(0)) {
refs = --ctx->dev[i].refs;
if (refs == 0) {
(*ctx->dev[i].configure)(ctx, false);
}
}
}
portEXIT_CRITICAL_SAFE(&ctx->lock);
assert(refs >= 0);
}
void IRAM_ATTR modem_clock_wifi_mac_reset(void)
{
#if SOC_WIFI_SUPPORTED
modem_clock_context_t *ctx = MODEM_CLOCK_instance();
portENTER_CRITICAL_SAFE(&ctx->lock);
//TODO: IDF-5713
modem_syscon_ll_reset_wifimac(ctx->hal->syscon_dev);
portEXIT_CRITICAL_SAFE(&ctx->lock);
#endif
}
#define WIFI_CLOCK_DEPS (BIT(MODEM_CLOCK_WIFI_MAC) | BIT(MODEM_CLOCK_FE) | BIT(MODEM_CLOCK_WIFI_BB) | BIT(MODEM_CLOCK_COEXIST))
#define BLE_CLOCK_DEPS (BIT(MODEM_CLOCK_BLE_MAC) | BIT(MODEM_CLOCK_FE) | BIT(MODEM_CLOCK_BLE_BB) | BIT(MODEM_CLOCK_ETM) | BIT(MODEM_CLOCK_COEXIST))
#define IEEE802154_CLOCK_DEPS (BIT(MODEM_CLOCK_802154_MAC) | BIT(MODEM_CLOCK_FE) | BIT(MODEM_CLOCK_BLE_BB) | BIT(MODEM_CLOCK_ETM) | BIT(MODEM_CLOCK_COEXIST))
#define COEXIST_CLOCK_DEPS (BIT(MODEM_CLOCK_COEXIST))
#define PHY_CLOCK_DEPS (BIT(MODEM_CLOCK_I2C_MASTER) | BIT(MODEM_CLOCK_FE))
static inline uint32_t modem_clock_get_module_deps(periph_module_t module)
{
uint32_t deps = 0;
if (module == PERIPH_PHY_MODULE) {deps = PHY_CLOCK_DEPS;}
else if (module == PERIPH_COEX_MODULE) { deps = COEXIST_CLOCK_DEPS; }
#if SOC_WIFI_SUPPORTED
else if (module == PERIPH_WIFI_MODULE) { deps = WIFI_CLOCK_DEPS; }
#endif
#if SOC_BT_SUPPORTED
else if (module == PERIPH_BT_MODULE) { deps = BLE_CLOCK_DEPS; }
#endif
#if SOC_IEEE802154_SUPPORTED
else if (module == PERIPH_IEEE802154_MODULE) { deps = IEEE802154_CLOCK_DEPS; }
#endif
return deps;
}
void IRAM_ATTR modem_clock_module_enable(periph_module_t module)
{
assert(IS_MODEM_MODULE(module));
uint32_t deps = modem_clock_get_module_deps(module);
modem_clock_device_enable(MODEM_CLOCK_instance(), deps);
}
void IRAM_ATTR modem_clock_module_disable(periph_module_t module)
{
assert(IS_MODEM_MODULE(module));
uint32_t deps = modem_clock_get_module_deps(module);
modem_clock_device_disable(MODEM_CLOCK_instance(), deps);
}
void modem_clock_select_lp_clock_source(periph_module_t module, modem_clock_lpclk_src_t src, uint32_t divider)
{
assert(IS_MODEM_MODULE(module));
portENTER_CRITICAL_SAFE(&MODEM_CLOCK_instance()->lock);
switch (module)
{
#if SOC_WIFI_SUPPORTED
case PERIPH_WIFI_MODULE:
modem_clock_hal_deselect_all_wifi_lpclk_source(MODEM_CLOCK_instance()->hal);
modem_clock_hal_select_wifi_lpclk_source(MODEM_CLOCK_instance()->hal, src);
modem_lpcon_ll_set_wifi_lpclk_divisor_value(MODEM_CLOCK_instance()->hal->lpcon_dev, divider);
modem_lpcon_ll_enable_wifipwr_clock(MODEM_CLOCK_instance()->hal->lpcon_dev, true);
break;
#endif // SOC_WIFI_SUPPORTED
#if SOC_BT_SUPPORTED
case PERIPH_BT_MODULE:
modem_clock_hal_deselect_all_ble_rtc_timer_lpclk_source(MODEM_CLOCK_instance()->hal);
modem_clock_hal_select_ble_rtc_timer_lpclk_source(MODEM_CLOCK_instance()->hal, src);
modem_clock_hal_set_ble_rtc_timer_divisor_value(MODEM_CLOCK_instance()->hal, divider);
modem_clock_hal_enable_ble_rtc_timer_clock(MODEM_CLOCK_instance()->hal, true);
break;
#endif // SOC_BT_SUPPORTED
case PERIPH_COEX_MODULE:
modem_clock_hal_deselect_all_coex_lpclk_source(MODEM_CLOCK_instance()->hal);
modem_clock_hal_select_coex_lpclk_source(MODEM_CLOCK_instance()->hal, src);
modem_lpcon_ll_set_coex_lpclk_divisor_value(MODEM_CLOCK_instance()->hal->lpcon_dev, divider);
// modem_lpcon_ll_enable_coex_clock(MODEM_CLOCK_instance()->hal->lpcon_dev, true); // TODO: IDF-5727
break;
default:
break;
}
modem_clock_lpclk_src_t last_src = MODEM_CLOCK_instance()->lpclk_src[module - PERIPH_MODEM_MODULE_MIN];
MODEM_CLOCK_instance()->lpclk_src[module - PERIPH_MODEM_MODULE_MIN] = src;
portEXIT_CRITICAL_SAFE(&MODEM_CLOCK_instance()->lock);
#if !CONFIG_IDF_TARGET_ESP32H2 // TODO: IDF-6267
/* The power domain of the low-power clock source required by the modem
* module remains powered on during sleep */
esp_sleep_pd_domain_t pd_domain = (esp_sleep_pd_domain_t) ( \
(last_src == MODEM_CLOCK_LPCLK_SRC_RC_FAST) ? ESP_PD_DOMAIN_RC_FAST \
: (last_src == MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL) ? ESP_PD_DOMAIN_XTAL \
: (last_src == MODEM_CLOCK_LPCLK_SRC_RC32K) ? ESP_PD_DOMAIN_RC32K \
: (last_src == MODEM_CLOCK_LPCLK_SRC_XTAL32K) ? ESP_PD_DOMAIN_XTAL32K \
: ESP_PD_DOMAIN_MAX);
esp_sleep_pd_domain_t pu_domain = (esp_sleep_pd_domain_t) ( \
(src == MODEM_CLOCK_LPCLK_SRC_RC_FAST) ? ESP_PD_DOMAIN_RC_FAST \
: (src == MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL) ? ESP_PD_DOMAIN_XTAL \
: (src == MODEM_CLOCK_LPCLK_SRC_RC32K) ? ESP_PD_DOMAIN_RC32K \
: (src == MODEM_CLOCK_LPCLK_SRC_XTAL32K) ? ESP_PD_DOMAIN_XTAL32K \
: ESP_PD_DOMAIN_MAX);
esp_sleep_pd_config(pd_domain, ESP_PD_OPTION_OFF);
esp_sleep_pd_config(pu_domain, ESP_PD_OPTION_ON);
#else
(void)last_src; // Only for bypass compile warning, delete if IDF-6267 resloved
#endif //!CONFIG_IDF_TARGET_ESP32H2
}
void modem_clock_deselect_lp_clock_source(periph_module_t module)
{
assert(IS_MODEM_MODULE(module));
portENTER_CRITICAL_SAFE(&MODEM_CLOCK_instance()->lock);
switch (module)
{
#if SOC_WIFI_SUPPORTED
case PERIPH_WIFI_MODULE:
modem_clock_hal_deselect_all_wifi_lpclk_source(MODEM_CLOCK_instance()->hal);
modem_lpcon_ll_enable_wifipwr_clock(MODEM_CLOCK_instance()->hal->lpcon_dev, false);
break;
#endif // SOC_WIFI_SUPPORTED
#if SOC_BT_SUPPORTED
case PERIPH_BT_MODULE:
modem_clock_hal_deselect_all_ble_rtc_timer_lpclk_source(MODEM_CLOCK_instance()->hal);
modem_clock_hal_enable_ble_rtc_timer_clock(MODEM_CLOCK_instance()->hal, false);
break;
#endif // SOC_BT_SUPPORTED
case PERIPH_COEX_MODULE:
modem_clock_hal_deselect_all_coex_lpclk_source(MODEM_CLOCK_instance()->hal);
// modem_lpcon_ll_enable_coex_clock(MODEM_CLOCK_instance()->hal->lpcon_dev, false); // TODO: IDF-5727
break;
default:
break;
}
modem_clock_lpclk_src_t last_src = MODEM_CLOCK_instance()->lpclk_src[module - PERIPH_MODEM_MODULE_MIN];
MODEM_CLOCK_instance()->lpclk_src[module - PERIPH_MODEM_MODULE_MIN] = MODEM_CLOCK_LPCLK_SRC_INVALID;
portEXIT_CRITICAL_SAFE(&MODEM_CLOCK_instance()->lock);
#if !CONFIG_IDF_TARGET_ESP32H2 // TODO: IDF-6267
esp_sleep_pd_domain_t pd_domain = (esp_sleep_pd_domain_t) ( \
(last_src == MODEM_CLOCK_LPCLK_SRC_RC_FAST) ? ESP_PD_DOMAIN_RC_FAST \
: (last_src == MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL) ? ESP_PD_DOMAIN_XTAL \
: (last_src == MODEM_CLOCK_LPCLK_SRC_RC32K) ? ESP_PD_DOMAIN_RC32K \
: (last_src == MODEM_CLOCK_LPCLK_SRC_XTAL32K) ? ESP_PD_DOMAIN_XTAL32K \
: ESP_PD_DOMAIN_MAX);
esp_sleep_pd_config(pd_domain, ESP_PD_OPTION_OFF);
#else
(void)last_src; // Only for bypass compile warning, delete if IDF-6267 resloved
#endif //!CONFIG_IDF_TARGET_ESP32H2
}
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