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fix(esp_hw_support): fix analog i2c master race cause by phy retention link

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This commit is contained in:
Li Shuai
2026-03-10 14:43:49 +08:00
committed by BOT
parent 313f64330b
commit f9b779466c
1 changed files with 40 additions and 2 deletions
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components/esp_hw_support/sleep_modem.c
+40 -2
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@@ -174,6 +174,13 @@ typedef struct sleep_modem_config {
static sleep_modem_config_t s_sleep_modem = { .wifi.phy_link = NULL, .wifi.flags = 0 };
typedef struct {
#define DESC_IDX_I2C_MST_ENA (0)
#define DESC_IDX_I2C_MST_SEL (1)
#define DESC_IDX_I2C_MST_DIS (2)
void *regdma_desc[DESC_IDX_I2C_MST_DIS + 1];
} sleep_modem_state_phy_link_context_t;
esp_err_t sleep_modem_wifi_modem_state_init(void)
{
esp_err_t err = ESP_OK;
@@ -254,13 +261,42 @@ esp_err_t sleep_modem_wifi_modem_state_init(void)
}
if (err == ESP_OK) {
pau_regdma_set_modem_link_addr(link);
s_sleep_modem.wifi.phy_link = link;
s_sleep_modem.wifi.flags = 0;
const int id_array[] = { REGDMA_PHY_LINK(0x00), REGDMA_PHY_LINK(0x01), REGDMA_PHY_LINK(0x1b) };
static DRAM_ATTR sleep_modem_state_phy_link_context_t phy_link_context;
for (int i = 0; (err == ESP_OK) && (i < ARRAY_SIZE(phy_link_context.regdma_desc)); i++) {
void *desc = regdma_find_link_by_id(link, 0, id_array[i]);
if (desc) {
phy_link_context.regdma_desc[i] = desc;
} else {
err = ESP_ERR_NOT_FOUND;
}
}
if (err == ESP_OK) {
s_sleep_modem.wifi.phy_link = (void *)&phy_link_context;
s_sleep_modem.wifi.flags = 0;
}
}
}
return err;
}
static void IRAM_ATTR sleep_modem_state_phy_link_config(void *link_context, uint32_t flags)
{
sleep_modem_state_phy_link_context_t *phy_link_context = (sleep_modem_state_phy_link_context_t *)link_context;
if (flags & BIT(0)) {
regdma_link_set_skip_flag(phy_link_context->regdma_desc[DESC_IDX_I2C_MST_ENA], true, true);
regdma_link_set_skip_flag(phy_link_context->regdma_desc[DESC_IDX_I2C_MST_SEL], true, true);
regdma_link_set_skip_flag(phy_link_context->regdma_desc[DESC_IDX_I2C_MST_DIS], true, true);
} else {
regdma_link_set_skip_flag(phy_link_context->regdma_desc[DESC_IDX_I2C_MST_ENA], true, false);
regdma_link_set_skip_flag(phy_link_context->regdma_desc[DESC_IDX_I2C_MST_SEL], true, false);
regdma_link_set_skip_flag(phy_link_context->regdma_desc[DESC_IDX_I2C_MST_DIS], false, true);
}
}
__attribute__((unused)) void sleep_modem_wifi_modem_state_deinit(void)
{
if (s_sleep_modem.wifi.phy_link) {
@@ -272,12 +308,14 @@ __attribute__((unused)) void sleep_modem_wifi_modem_state_deinit(void)
void IRAM_ATTR sleep_modem_wifi_do_phy_retention(bool restore)
{
sleep_modem_state_phy_link_config(s_sleep_modem.wifi.phy_link, 1);
if (restore) {
pau_regdma_trigger_modem_link_restore();
} else {
pau_regdma_trigger_modem_link_backup();
s_sleep_modem.wifi.modem_state_phy_done = 1;
}
sleep_modem_state_phy_link_config(s_sleep_modem.wifi.phy_link, 0);
}
inline __attribute__((always_inline)) bool sleep_modem_wifi_modem_state_enabled(void)