alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-10 20:54:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

ethernet: Add convenience functions esp_eth_smi_wait_value() & esp_eth_smi_wait_set()

Browse Source 
Covers the common case of waiting for a particular PHY register to have a particular value.
This commit is contained in:
Angus Gratton
2017-04-19 13:43:25 +10:00
committed by Angus Gratton
parent 453722ba54
commit 453b5ded1d
5 changed files with 68 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
components/ethernet/emac_main.c
View File

@@ -204,6 +204,25 @@ uint16_t esp_eth_smi_read(uint32_t reg_num)
return value;
}
esp_err_t esp_eth_smi_wait_value(uint32_t reg_num, uint16_t value, uint16_t value_mask, int timeout_ms)
{
unsigned start = xTaskGetTickCount();
unsigned timeout_ticks = (timeout_ms + portTICK_PERIOD_MS - 1) / portTICK_PERIOD_MS;
uint16_t current_value = 0;
while (timeout_ticks == 0 || (xTaskGetTickCount() - start < timeout_ticks)) {
current_value = esp_eth_smi_read(reg_num);
if ((current_value & value_mask) == (value & value_mask)) {
return ESP_OK;
}
vTaskDelay(1);
}
ESP_LOGE(TAG, "Timed out waiting for PHY register 0x%x to have value 0x%04x (mask 0x%04x). Current value 0x%04x",
reg_num, value, value_mask, current_value);
return ESP_ERR_TIMEOUT;
}
static void emac_set_user_config_data(eth_config_t *config )
{
emac_config.phy_addr = config->phy_addr;