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feat(esp_eth): generic 802.3 driver to check if 1000M is supported

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This commit is contained in:
Ondrej Kosta
2026-05-26 16:28:33 +02:00
parent 041aa425fa
commit 2fbc3fb588
2 changed files with 45 additions and 11 deletions
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16
components/esp_eth/include/eth_phy_802_3_regs.h
View File

@@ -211,6 +211,22 @@ typedef union {
} mmdad_reg_t;
#define ETH_PHY_MMDAD_REG_ADDR (0x0E)
/**
* @brief EXSR(Extended Status Register)
*
*/
typedef union {
struct {
uint32_t reserved : 12; /*!< Reserved */
uint32_t base1000_t : 1; /*!< 1000BASE-T Half Duplex ability */
uint32_t base1000_t_fd : 1; /*!< 1000BASE-T Full Duplex ability */
uint32_t base1000_x : 1; /*!< 1000BASE-X Half Duplex ability */
uint32_t base1000_x_fd : 1; /*!< 1000BASE-X Full Duplex ability */
};
uint32_t val;
} exsr_reg_t;
#define ETH_PHY_EXSR_REG_ADDR (0x0F)
#ifdef __cplusplus
}
#endif

40
components/esp_eth/src/phy/esp_eth_phy_802_3.c
View File

@@ -241,16 +241,20 @@ esp_err_t esp_eth_phy_802_3_updt_link_dup_spd(phy_802_3_t *phy_802_3)
if (bmcr.en_auto_nego) {
bool need_anar_mode = false;
if (bmsr.ext_status) {
if (eth->phy_reg_read(eth, addr, ETH_PHY_GBCR_REG_ADDR, &(gbcr.val)) == ESP_OK &&
eth->phy_reg_read(eth, addr, ETH_PHY_GBSR_REG_ADDR, &(gbsr.val)) == ESP_OK) {
if (gbcr.base1000_t_fd && gbsr.lp_base1000_t_fd) {
speed = ETH_SPEED_1000M;
duplex = ETH_DUPLEX_FULL;
} else if (gbcr.base1000_t && gbsr.lp_base1000_t) {
speed = ETH_SPEED_1000M;
duplex = ETH_DUPLEX_HALF;
} else {
need_anar_mode = true;
exsr_reg_t exsr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, addr, ETH_PHY_EXSR_REG_ADDR, &(exsr.val)), err, TAG, "read EXSR failed");
if (exsr.base1000_t || exsr.base1000_t_fd) {
if (eth->phy_reg_read(eth, addr, ETH_PHY_GBCR_REG_ADDR, &(gbcr.val)) == ESP_OK &&
eth->phy_reg_read(eth, addr, ETH_PHY_GBSR_REG_ADDR, &(gbsr.val)) == ESP_OK) {
if (gbcr.base1000_t_fd && gbsr.lp_base1000_t_fd) {
speed = ETH_SPEED_1000M;
duplex = ETH_DUPLEX_FULL;
} else if (gbcr.base1000_t && gbsr.lp_base1000_t) {
speed = ETH_SPEED_1000M;
duplex = ETH_DUPLEX_HALF;
} else {
need_anar_mode = true;
}
}
}
}
@@ -400,11 +404,25 @@ esp_err_t esp_eth_phy_802_3_set_speed(phy_802_3_t *phy_802_3, eth_speed_t speed)
/* Set speed */
bmcr_reg_t bmcr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, phy_802_3->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
bmsr_reg_t bmsr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, phy_802_3->addr, ETH_PHY_BMSR_REG_ADDR, &(bmsr.val)), err, TAG, "read BMSR failed");
bool is_1000_capable = false;
if (bmsr.ext_status) {
exsr_reg_t exsr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, phy_802_3->addr, ETH_PHY_EXSR_REG_ADDR, &(exsr.val)), err, TAG, "read EXSR failed");
is_1000_capable = exsr.base1000_t || exsr.base1000_t_fd;
}
if (speed == ETH_SPEED_1000M) {
if (!is_1000_capable) {
ret = ESP_ERR_NOT_SUPPORTED;
goto err;
}
bmcr.speed_1000 = 1;
bmcr.speed_select = 0;
} else {
bmcr.speed_1000 = 0;
if (is_1000_capable) {
bmcr.speed_1000 = 0;
}
bmcr.speed_select = speed == ETH_SPEED_100M ? 1 : 0;
}
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, phy_802_3->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");