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feat(ble): add internal api to change ble slow clock source

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This commit is contained in:
cjin
2024-08-19 19:33:37 +08:00
parent 8b1e4d8437
commit 3aac7d2a58
8 changed files with 238 additions and 119 deletions
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85
components/bt/controller/esp32c6/bt.c
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@@ -393,6 +393,7 @@ static bool s_ble_active = false;
static DRAM_ATTR esp_pm_lock_handle_t s_pm_lock = NULL;
#define BTDM_MIN_TIMER_UNCERTAINTY_US (200)
#endif // CONFIG_PM_ENABLE
static DRAM_ATTR modem_clock_lpclk_src_t s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_INVALID;
#define BLE_RTC_DELAY_US_LIGHT_SLEEP (2500)
#define BLE_RTC_DELAY_US_MODEM_SLEEP (500)
@@ -536,6 +537,20 @@ void esp_bt_rtc_slow_clk_select(uint8_t slow_clk_src)
}
}
modem_clock_lpclk_src_t esp_bt_get_lpclk_src(void)
{
return s_bt_lpclk_src;
}
void esp_bt_set_lpclk_src(modem_clock_lpclk_src_t clk_src)
{
if (clk_src >= MODEM_CLOCK_LPCLK_SRC_MAX) {
return;
}
s_bt_lpclk_src = clk_src;
}
IRAM_ATTR void controller_sleep_cb(uint32_t enable_tick, void *arg)
{
if (!s_ble_active) {
@@ -759,12 +774,51 @@ void ble_controller_scan_duplicate_config(void)
ble_vhci_disc_duplicate_set_max_cache_size(cache_size);
}
static void ble_rtc_clk_init(esp_bt_controller_config_t *cfg)
{
if (s_bt_lpclk_src == MODEM_CLOCK_LPCLK_SRC_INVALID) {
#if CONFIG_BT_LE_LP_CLK_SRC_MAIN_XTAL
s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL;
#else
#if CONFIG_RTC_CLK_SRC_INT_RC
s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_RC_SLOW;
#elif CONFIG_RTC_CLK_SRC_EXT_CRYS
if (rtc_clk_slow_src_get() == SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_XTAL32K;
} else {
ESP_LOGW(NIMBLE_PORT_LOG_TAG, "32.768kHz XTAL not detected, fall back to main XTAL as Bluetooth sleep clock");
s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL;
}
#elif CONFIG_RTC_CLK_SRC_INT_RC32K
s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_RC32K;
#elif CONFIG_RTC_CLK_SRC_EXT_OSC
s_bt_lpclk_src = MODEM_CLOCK_LPCLK_SRC_EXT32K;
#else
ESP_LOGE(NIMBLE_PORT_LOG_TAG, "Unsupported clock source");
assert(0);
#endif
#endif /* CONFIG_BT_LE_LP_CLK_SRC_MAIN_XTAL */
}
if (s_bt_lpclk_src == MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL) {
cfg->rtc_freq = 100000;
} else if (s_bt_lpclk_src == MODEM_CLOCK_LPCLK_SRC_XTAL32K) {
cfg->rtc_freq = 32768;
} else if (s_bt_lpclk_src == MODEM_CLOCK_LPCLK_SRC_RC_SLOW) {
cfg->rtc_freq = 30000;
} else if (s_bt_lpclk_src == MODEM_CLOCK_LPCLK_SRC_RC32K) {
cfg->rtc_freq = 32000;
} else if (s_bt_lpclk_src == MODEM_CLOCK_LPCLK_SRC_EXT32K) {
cfg->rtc_freq = 32000;
}
esp_bt_rtc_slow_clk_select(s_bt_lpclk_src);
}
esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg)
{
uint8_t mac[6];
esp_err_t ret = ESP_OK;
ble_npl_count_info_t npl_info;
uint32_t slow_clk_freq = 0;
uint8_t hci_transport_mode;
memset(&npl_info, 0, sizeof(ble_npl_count_info_t));
@@ -816,33 +870,7 @@ esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg)
modem_clock_module_enable(PERIPH_BT_MODULE);
modem_clock_module_mac_reset(PERIPH_BT_MODULE);
/* Select slow clock source for BT momdule */
#if CONFIG_BT_LE_LP_CLK_SRC_MAIN_XTAL
esp_bt_rtc_slow_clk_select(MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL);
slow_clk_freq = 100000;
#else
#if CONFIG_RTC_CLK_SRC_INT_RC
esp_bt_rtc_slow_clk_select(MODEM_CLOCK_LPCLK_SRC_RC_SLOW);
slow_clk_freq = 30000;
#elif CONFIG_RTC_CLK_SRC_EXT_CRYS
if (rtc_clk_slow_src_get() == SOC_RTC_SLOW_CLK_SRC_XTAL32K) {
esp_bt_rtc_slow_clk_select(MODEM_CLOCK_LPCLK_SRC_XTAL32K);
slow_clk_freq = 32768;
} else {
ESP_LOGW(NIMBLE_PORT_LOG_TAG, "32.768kHz XTAL not detected, fall back to main XTAL as Bluetooth sleep clock");
esp_bt_rtc_slow_clk_select(MODEM_CLOCK_LPCLK_SRC_MAIN_XTAL);
slow_clk_freq = 100000;
}
#elif CONFIG_RTC_CLK_SRC_INT_RC32K
esp_bt_rtc_slow_clk_select(MODEM_CLOCK_LPCLK_SRC_RC32K);
slow_clk_freq = 32000;
#elif CONFIG_RTC_CLK_SRC_EXT_OSC
esp_bt_rtc_slow_clk_select(MODEM_CLOCK_LPCLK_SRC_EXT32K);
slow_clk_freq = 32000;
#else
ESP_LOGE(NIMBLE_PORT_LOG_TAG, "Unsupported clock source");
assert(0);
#endif
#endif /* CONFIG_BT_LE_LP_CLK_SRC_MAIN_XTAL */
ble_rtc_clk_init(cfg);
esp_phy_modem_init();
if (ble_osi_coex_funcs_register((struct osi_coex_funcs_t *)&s_osi_coex_funcs_ro) != 0) {
@@ -875,7 +903,6 @@ esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg)
}
ESP_LOGI(NIMBLE_PORT_LOG_TAG, "ble controller commit:[%s]", ble_controller_get_compile_version());
r_esp_ble_change_rtc_freq(slow_clk_freq);
ble_controller_scan_duplicate_config();