alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-09-30 19:19:21 +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

31
components/ethernet/include/esp_eth.h
View File

@@ -175,7 +175,7 @@ void esp_eth_get_mac(uint8_t mac[6]);
void esp_eth_smi_write(uint32_t reg_num, uint16_t value);
/**
* @brief Write phy reg with smi interface.
* @brief Read phy reg with smi interface.
*
* @note phy base addr must be right.
*
@@ -185,6 +185,35 @@ void esp_eth_smi_write(uint32_t reg_num, uint16_t value);
*/
uint16_t esp_eth_smi_read(uint32_t reg_num);
/**
* @brief Continuously read a PHY register over SMI interface, wait until the register has the desired value.
*
* @note PHY base address must be right.
*
* @param reg_num: PHY register number
* @param value: Value to wait for (masked with value_mask)
* @param value_mask: Mask of bits to match in the register.
* @param timeout_ms: Timeout to wait for this value (milliseconds). 0 means never timeout.
*
* @return ESP_OK if desired value matches, ESP_ERR_TIMEOUT if timed out.
*/
esp_err_t esp_eth_smi_wait_value(uint32_t reg_num, uint16_t value, uint16_t value_mask, int timeout_ms);
/**
* @brief Continuously read a PHY register over SMI interface, wait until the register has all bits in a mask set.
*
* @note PHY base address must be right.
*
* @param reg_num: PHY register number
* @param value_mask: Value mask to wait for (all bits in this mask must be set)
* @param timeout_ms: Timeout to wait for this value (milliseconds). 0 means never timeout.
*
* @return ESP_OK if desired value matches, ESP_ERR_TIMEOUT if timed out.
*/
static inline esp_err_t esp_eth_smi_wait_set(uint32_t reg_num, uint16_t value_mask, int timeout_ms) {
return esp_eth_smi_wait_value(reg_num, value_mask, value_mask, timeout_ms);
}
/**
* @brief Free emac rx buf.
*