esp-idf/components/esp_eth/src/esp_eth_phy_lan87xx.c
Ondrej Kosta d1f2a3dfcc esp_eth: added ioctl options to set Ethernet speed and duplex mode
esp_eth_ioctl third argument always acts as untyped pointer to memory now
2021-11-16 08:34:07 +01:00

625 lines
23 KiB
C

/*
* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <stdlib.h>
#include <sys/cdefs.h>
#include "esp_log.h"
#include "esp_check.h"
#include "esp_eth.h"
#include "eth_phy_regs_struct.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_rom_gpio.h"
#include "esp_rom_sys.h"
static const char *TAG = "lan87xx";
/***************List of Supported Models***************/
// See Microchip's Application Note AN25.3 summarizing differences among below models
#define LAN8710A_MODEL_NUM 0x0F
#define LAN8720A_MODEL_NUM 0x0F
#define LAN8740A_MODEL_NUM 0x11
#define LAN8741A_MODEL_NUM 0x12
#define LAN8742A_MODEL_NUM 0x13
static const uint8_t supported_models[] = {
LAN8710A_MODEL_NUM,
#if (LAN8710A_MODEL_NUM != LAN8720A_MODEL_NUM)
LAN8720A_MODEL_NUM,
#endif
LAN8740A_MODEL_NUM,
LAN8741A_MODEL_NUM,
LAN8742A_MODEL_NUM
};
/***************Vendor Specific Register***************/
/**
* @brief MCSR(Mode Control Status Register)
*
*/
typedef union {
struct {
uint32_t reserved1 : 1; /* Reserved */
uint32_t energy_is_on : 1; /* Energy is On */
uint32_t reserved2 : 4; /* Reserved */
uint32_t en_alternate_interrupt : 1; /* Enable Alternate Interrupt Mode */
uint32_t reserved3 : 2; /* Reserved */
uint32_t en_far_loopback : 1; /* Enable Far Loopback Mode */
uint32_t reserved4 : 3; /* Reserved */
uint32_t en_energy_detect_powerdown : 1; /* Enable Energy Detect Power Down */
uint32_t reserved5 : 2; /* Reserved */
};
uint32_t val;
} mcsr_reg_t;
#define ETH_PHY_MCSR_REG_ADDR (0x11)
/**
* @brief SMR(Special Modes Register)
*
*/
typedef union {
struct {
uint32_t phy_addr : 5; /* PHY Address */
uint32_t mode : 3; /* Transceiver Mode of Operation */
uint32_t reserved_1 : 6; /* Reserved */
uint32_t mii_mode : 1; /* Mode of the digital interface (only LAN8710A/LAN8740A/LAN8741A) */
uint32_t reserved_2 : 1; /* Reserved */
};
uint32_t val;
} smr_reg_t;
#define ETH_PHY_SMR_REG_ADDR (0x12)
/**
* @brief Time Domain Reflectometry Patterns/Delay Control Register
* Only available in LAN8740A/LAN8742A
*/
typedef union {
struct {
uint32_t tdr_pattern_low : 6; /* Data pattern sent in TDR mode for the low cycle */
uint32_t tdr_pattern_high : 6; /* Data pattern sent in TDR mode for the high cycle */
uint32_t tdr_line_break_counter : 3; /* Increments of 256ms of break time */
uint32_t tdr_delay_in : 1; /* Line break counter used */
};
uint32_t val;
} tdr_pattern_reg_t;
#define EHT_PHY_TDRPD_REG_ADDR (0x18)
/**
* @brief Time Domain Reflectometry Control/Status Register)
* Only available in LAN8740A/LAN8742A
*/
typedef union {
struct {
uint32_t tdr_channel_length : 8; /* TDR channel length */
uint32_t tdr_channel_status : 1; /* TDR channel status */
uint32_t tdr_channel_cable_type : 2; /* TDR channel cable type */
uint32_t reserved : 3; /* Reserved */
uint32_t tdr_a2d_filter_enable: 1; /* Analog to Digital Filter Enabled */
uint32_t tdr_enable : 1; /* Enable TDR */
};
uint32_t val;
} tdr_control_reg_t;
#define EHT_PHY_TDRC_REG_ADDR (0x19)
/**
* @brief SECR(Symbol Error Counter Register)
*
*/
typedef union {
struct {
uint32_t symbol_err_count : 16; /* Symbol Error Counter */
};
uint32_t val;
} secr_reg_t;
#define EHT_PHY_SECR_REG_ADDR (0x1A)
/**
* @brief CSIR(Control Status Indications Register)
*
*/
typedef union {
struct {
uint32_t reserved1 : 4; /* Reserved */
uint32_t base10_t_polarity : 1; /* Polarity State of 10Base-T */
uint32_t reserved2 : 6; /* Reserved */
uint32_t dis_sqe : 1; /* Disable SQE test(Heartbeat) */
uint32_t reserved3 : 1; /* Reserved */
uint32_t select_channel : 1; /* Manual channel select:MDI(0) or MDIX(1) */
uint32_t reserved4 : 1; /* Reserved */
uint32_t auto_mdix_ctrl : 1; /* Auto-MDIX Control: EN(0) or DE(1) */
};
uint32_t val;
} scsir_reg_t;
#define ETH_PHY_CSIR_REG_ADDR (0x1B)
/**
* @brief Cable Length Register
* Only available in LAN8740A/LAN8742A
*/
typedef union {
struct {
uint32_t reserved : 12; /* Reserved */
uint32_t cable_length : 4; /* Cable length */
};
uint32_t val;
} cbln_reg_t;
#define EHT_PHY_CBLN_REG_ADDR (0x1C)
/**
* @brief ISR(Interrupt Source Register)
*
*/
typedef union {
struct {
uint32_t reserved1 : 1; /* Reserved */
uint32_t auto_nego_page_received : 1; /* Auto-Negotiation Page Received */
uint32_t parallel_detect_fault : 1; /* Parallel Detection Fault */
uint32_t auto_nego_lp_acknowledge : 1; /* Auto-Negotiation LP Acknowledge */
uint32_t link_down : 1; /* Link Down */
uint32_t remote_fault_detect : 1; /* Remote Fault Detect */
uint32_t auto_nego_complete : 1; /* Auto-Negotiation Complete */
uint32_t energy_on_generate : 1; /* ENERGY ON generated */
uint32_t wake_on_lan : 1; /* Wake on Lan (WOL) event detected (only LAN8740A/LAN8742A) */
uint32_t reserved2 : 7; /* Reserved */
};
uint32_t val;
} isfr_reg_t;
#define ETH_PHY_ISR_REG_ADDR (0x1D)
/**
* @brief IMR(Interrupt Mask Register)
*
*/
typedef union {
struct {
uint32_t reserved1 : 1; /* Reserved */
uint32_t auto_nego_page_received : 1; /* Auto-Negotiation Page Received */
uint32_t parallel_detect_fault : 1; /* Parallel Detection Fault */
uint32_t auto_nego_lp_acknowledge : 1; /* Auto-Negotiation LP Acknowledge */
uint32_t link_down : 1; /* Link Down */
uint32_t remote_fault_detect : 1; /* Remote Fault Detect */
uint32_t auto_nego_complete : 1; /* Auto-Negotiation Complete */
uint32_t energy_on_generate : 1; /* ENERGY ON generated */
uint32_t wake_on_lan : 1; /* Wake on Lan (WOL) event detected (only LAN8740A/LAN8742A) */
uint32_t reserved2 : 7; /* Reserved */
};
uint32_t val;
} imr_reg_t;
#define ETH_PHY_IMR_REG_ADDR (0x1E)
/**
* @brief PSCSR(PHY Special Control Status Register)
*
*/
typedef union {
struct {
uint32_t reserved1 : 2; /* Reserved */
uint32_t speed_indication : 3; /* Speed Indication */
uint32_t reserved2 : 1; /* Reserved */
uint32_t enable_4b5b : 1; /* Enable 4B5B encoder (only LAN8740A/LAN8741A) */
uint32_t reserved3 : 5; /* Reserved */
uint32_t auto_nego_done : 1; /* Auto Negotiation Done */
uint32_t reserved4 : 3; /* Reserved */
};
uint32_t val;
} pscsr_reg_t;
#define ETH_PHY_PSCSR_REG_ADDR (0x1F)
typedef struct {
esp_eth_phy_t parent;
esp_eth_mediator_t *eth;
int addr;
uint32_t reset_timeout_ms;
uint32_t autonego_timeout_ms;
eth_link_t link_status;
int reset_gpio_num;
} phy_lan87xx_t;
static esp_err_t lan87xx_update_link_duplex_speed(phy_lan87xx_t *lan87xx)
{
esp_err_t ret = ESP_OK;
esp_eth_mediator_t *eth = lan87xx->eth;
eth_speed_t speed = ETH_SPEED_10M;
eth_duplex_t duplex = ETH_DUPLEX_HALF;
bmsr_reg_t bmsr;
pscsr_reg_t pscsr;
uint32_t peer_pause_ability = false;
anlpar_reg_t anlpar;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_ANLPAR_REG_ADDR, &(anlpar.val)), err, TAG, "read ANLPAR failed");
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMSR_REG_ADDR, &(bmsr.val)), err, TAG, "read BMSR failed");
eth_link_t link = bmsr.link_status ? ETH_LINK_UP : ETH_LINK_DOWN;
/* check if link status changed */
if (lan87xx->link_status != link) {
/* when link up, read negotiation result */
if (link == ETH_LINK_UP) {
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_PSCSR_REG_ADDR, &(pscsr.val)), err, TAG, "read PSCSR failed");
switch (pscsr.speed_indication) {
case 1: //10Base-T half-duplex
speed = ETH_SPEED_10M;
duplex = ETH_DUPLEX_HALF;
break;
case 2: //100Base-TX half-duplex
speed = ETH_SPEED_100M;
duplex = ETH_DUPLEX_HALF;
break;
case 5: //10Base-T full-duplex
speed = ETH_SPEED_10M;
duplex = ETH_DUPLEX_FULL;
break;
case 6: //100Base-TX full-duplex
speed = ETH_SPEED_100M;
duplex = ETH_DUPLEX_FULL;
break;
default:
break;
}
ESP_GOTO_ON_ERROR(eth->on_state_changed(eth, ETH_STATE_SPEED, (void *)speed), err, TAG, "change speed failed");
ESP_GOTO_ON_ERROR(eth->on_state_changed(eth, ETH_STATE_DUPLEX, (void *)duplex), err, TAG, "change duplex failed");
/* if we're in duplex mode, and peer has the flow control ability */
if (duplex == ETH_DUPLEX_FULL && anlpar.symmetric_pause) {
peer_pause_ability = 1;
} else {
peer_pause_ability = 0;
}
ESP_GOTO_ON_ERROR(eth->on_state_changed(eth, ETH_STATE_PAUSE, (void *)peer_pause_ability), err, TAG, "change pause ability failed");
}
ESP_GOTO_ON_ERROR(eth->on_state_changed(eth, ETH_STATE_LINK, (void *)link), err, TAG, "change link failed");
lan87xx->link_status = link;
}
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_set_mediator(esp_eth_phy_t *phy, esp_eth_mediator_t *eth)
{
esp_err_t ret = ESP_OK;
ESP_GOTO_ON_FALSE(eth, ESP_ERR_INVALID_ARG, err, TAG, "can't set mediator to null");
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
lan87xx->eth = eth;
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_get_link(esp_eth_phy_t *phy)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
/* Updata information about link, speed, duplex */
ESP_GOTO_ON_ERROR(lan87xx_update_link_duplex_speed(lan87xx), err, TAG, "update link duplex speed failed");
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_reset(esp_eth_phy_t *phy)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
lan87xx->link_status = ETH_LINK_DOWN;
esp_eth_mediator_t *eth = lan87xx->eth;
bmcr_reg_t bmcr = {.reset = 1};
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
/* wait for reset complete */
uint32_t to = 0;
for (to = 0; to < lan87xx->reset_timeout_ms / 10; to++) {
vTaskDelay(pdMS_TO_TICKS(10));
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
if (!bmcr.reset) {
break;
}
}
ESP_GOTO_ON_FALSE(to < lan87xx->reset_timeout_ms / 10, ESP_FAIL, err, TAG, "reset timeout");
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_reset_hw(esp_eth_phy_t *phy)
{
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
if (lan87xx->reset_gpio_num >= 0) {
esp_rom_gpio_pad_select_gpio(lan87xx->reset_gpio_num);
gpio_set_direction(lan87xx->reset_gpio_num, GPIO_MODE_OUTPUT);
gpio_set_level(lan87xx->reset_gpio_num, 0);
/* assert nRST signal on LAN87xx a little longer than the minimum specified in datasheet */
esp_rom_delay_us(150);
gpio_set_level(lan87xx->reset_gpio_num, 1);
}
return ESP_OK;
}
/**
* @note This function is responsible for restarting a new auto-negotiation,
* the result of negotiation won't be relected to uppler layers.
* Instead, the negotiation result is fetched by linker timer, see `lan87xx_get_link()`
*/
static esp_err_t lan87xx_autonego_ctrl(esp_eth_phy_t *phy, eth_phy_autoneg_cmd_t cmd, bool *autonego_en_stat)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
esp_eth_mediator_t *eth = lan87xx->eth;
bmcr_reg_t bmcr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
switch (cmd) {
case ESP_ETH_PHY_AUTONEGO_RESTART:
ESP_GOTO_ON_FALSE(bmcr.en_auto_nego, ESP_ERR_INVALID_STATE, err, TAG, "auto negotiation is disabled");
/* in case any link status has changed, let's assume we're in link down status */
lan87xx->link_status = ETH_LINK_DOWN;
bmcr.restart_auto_nego = 1; /* Restart Auto Negotiation */
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
/* Wait for auto negotiation complete */
bmsr_reg_t bmsr;
uint32_t to = 0;
for (to = 0; to < lan87xx->autonego_timeout_ms / 100; to++) {
vTaskDelay(pdMS_TO_TICKS(100));
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMSR_REG_ADDR, &(bmsr.val)), err, TAG, "read BMSR failed");
if (bmsr.auto_nego_complete) {
break;
}
}
if ((to >= lan87xx->autonego_timeout_ms / 100) && (lan87xx->link_status == ETH_LINK_UP)) {
ESP_LOGW(TAG, "auto negotiation timeout");
}
break;
case ESP_ETH_PHY_AUTONEGO_DIS:
if (bmcr.en_auto_nego == 1) {
bmcr.en_auto_nego = 0; /* Disable Auto Negotiation */
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
/* read configuration back */
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
ESP_GOTO_ON_FALSE(bmcr.en_auto_nego == 0, ESP_FAIL, err, TAG, "disable auto-negotiation failed");
}
break;
case ESP_ETH_PHY_AUTONEGO_EN:
if (bmcr.en_auto_nego == 0) {
bmcr.en_auto_nego = 1; /* Enable Auto Negotiation */
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
/* read configuration back */
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
ESP_GOTO_ON_FALSE(bmcr.en_auto_nego == 1, ESP_FAIL, err, TAG, "enable auto-negotiation failed");
}
break;
case ESP_ETH_PHY_AUTONEGO_G_STAT:
/* do nothing autonego_en_stat is set at the function end */
break;
default:
return ESP_ERR_INVALID_ARG;
}
*autonego_en_stat = bmcr.en_auto_nego;
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_pwrctl(esp_eth_phy_t *phy, bool enable)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
esp_eth_mediator_t *eth = lan87xx->eth;
bmcr_reg_t bmcr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
if (!enable) {
/* General Power Down Mode */
bmcr.power_down = 1;
} else {
/* Normal operation Mode */
bmcr.power_down = 0;
}
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
if (!enable) {
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
ESP_GOTO_ON_FALSE(bmcr.power_down == 1, ESP_FAIL, err, TAG, "power down failed");
} else {
/* wait for power up complete */
uint32_t to = 0;
for (to = 0; to < lan87xx->reset_timeout_ms / 10; to++) {
vTaskDelay(pdMS_TO_TICKS(10));
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
if (bmcr.power_down == 0) {
break;
}
}
ESP_GOTO_ON_FALSE(to < lan87xx->reset_timeout_ms / 10, ESP_FAIL, err, TAG, "power up timeout");
}
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_set_addr(esp_eth_phy_t *phy, uint32_t addr)
{
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
lan87xx->addr = addr;
return ESP_OK;
}
static esp_err_t lan87xx_get_addr(esp_eth_phy_t *phy, uint32_t *addr)
{
esp_err_t ret = ESP_OK;
ESP_GOTO_ON_FALSE(addr, ESP_ERR_INVALID_ARG, err, TAG, "addr can't be null");
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
*addr = lan87xx->addr;
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_del(esp_eth_phy_t *phy)
{
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
free(lan87xx);
return ESP_OK;
}
static esp_err_t lan87xx_advertise_pause_ability(esp_eth_phy_t *phy, uint32_t ability)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
esp_eth_mediator_t *eth = lan87xx->eth;
/* Set PAUSE function ability */
anar_reg_t anar;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_ANAR_REG_ADDR, &(anar.val)), err, TAG, "read ANAR failed");
if (ability) {
anar.asymmetric_pause = 1;
anar.symmetric_pause = 1;
} else {
anar.asymmetric_pause = 0;
anar.symmetric_pause = 0;
}
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_ANAR_REG_ADDR, anar.val), err, TAG, "write ANAR failed");
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_loopback(esp_eth_phy_t *phy, bool enable)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
esp_eth_mediator_t *eth = lan87xx->eth;
/* Set Loopback function */
bmcr_reg_t bmcr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
if (enable) {
bmcr.en_loopback = 1;
} else {
bmcr.en_loopback = 0;
}
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_set_speed(esp_eth_phy_t *phy, eth_speed_t speed)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
esp_eth_mediator_t *eth = lan87xx->eth;
if (lan87xx->link_status == ETH_LINK_UP) {
/* Since the link is going to be reconfigured, consider it down for a while */
lan87xx->link_status = ETH_LINK_DOWN;
/* Indicate to upper stream apps the link is cosidered down */
ESP_GOTO_ON_ERROR(eth->on_state_changed(eth, ETH_STATE_LINK, (void *)lan87xx->link_status), err, TAG, "change link failed");
}
/* Set speed */
bmcr_reg_t bmcr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
bmcr.speed_select = speed;
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_set_duplex(esp_eth_phy_t *phy, eth_duplex_t duplex)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
esp_eth_mediator_t *eth = lan87xx->eth;
if (lan87xx->link_status == ETH_LINK_UP) {
/* Since the link is going to be reconfigured, consider it down for a while */
lan87xx->link_status = ETH_LINK_DOWN;
/* Indicate to upper stream apps the link is cosidered down */
ESP_GOTO_ON_ERROR(eth->on_state_changed(eth, ETH_STATE_LINK, (void *)lan87xx->link_status), err, TAG, "change link failed");
}
/* Set duplex mode */
bmcr_reg_t bmcr;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, &(bmcr.val)), err, TAG, "read BMCR failed");
bmcr.duplex_mode = duplex;
ESP_GOTO_ON_ERROR(eth->phy_reg_write(eth, lan87xx->addr, ETH_PHY_BMCR_REG_ADDR, bmcr.val), err, TAG, "write BMCR failed");
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_init(esp_eth_phy_t *phy)
{
esp_err_t ret = ESP_OK;
phy_lan87xx_t *lan87xx = __containerof(phy, phy_lan87xx_t, parent);
esp_eth_mediator_t *eth = lan87xx->eth;
// Detect PHY address
if (lan87xx->addr == ESP_ETH_PHY_ADDR_AUTO) {
ESP_GOTO_ON_ERROR(esp_eth_detect_phy_addr(eth, &lan87xx->addr), err, TAG, "Detect PHY address failed");
}
/* Power on Ethernet PHY */
ESP_GOTO_ON_ERROR(lan87xx_pwrctl(phy, true), err, TAG, "power control failed");
/* Reset Ethernet PHY */
ESP_GOTO_ON_ERROR(lan87xx_reset(phy), err, TAG, "reset failed");
/* Check PHY ID */
phyidr1_reg_t id1;
phyidr2_reg_t id2;
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_IDR1_REG_ADDR, &(id1.val)), err, TAG, "read ID1 failed");
ESP_GOTO_ON_ERROR(eth->phy_reg_read(eth, lan87xx->addr, ETH_PHY_IDR2_REG_ADDR, &(id2.val)), err, TAG, "read ID2 failed");
ESP_GOTO_ON_FALSE(id1.oui_msb == 0x7 && id2.oui_lsb == 0x30, ESP_FAIL, err, TAG, "wrong chip ID");
bool supported_model = false;
for (unsigned int i = 0; i < sizeof(supported_models); i++) {
if (id2.vendor_model == supported_models[i]) {
supported_model = true;
break;
}
}
ESP_GOTO_ON_FALSE(supported_model, ESP_FAIL, err, TAG, "unsupported chip model");
return ESP_OK;
err:
return ret;
}
static esp_err_t lan87xx_deinit(esp_eth_phy_t *phy)
{
esp_err_t ret = ESP_OK;
/* Power off Ethernet PHY */
ESP_GOTO_ON_ERROR(lan87xx_pwrctl(phy, false), err, TAG, "power control failed");
return ESP_OK;
err:
return ret;
}
esp_eth_phy_t *esp_eth_phy_new_lan87xx(const eth_phy_config_t *config)
{
esp_eth_phy_t *ret = NULL;
ESP_GOTO_ON_FALSE(config, NULL, err, TAG, "can't set phy config to null");
phy_lan87xx_t *lan87xx = calloc(1, sizeof(phy_lan87xx_t));
ESP_GOTO_ON_FALSE(lan87xx, NULL, err, TAG, "calloc lan87xx failed");
lan87xx->addr = config->phy_addr;
lan87xx->reset_gpio_num = config->reset_gpio_num;
lan87xx->reset_timeout_ms = config->reset_timeout_ms;
lan87xx->link_status = ETH_LINK_DOWN;
lan87xx->autonego_timeout_ms = config->autonego_timeout_ms;
lan87xx->parent.reset = lan87xx_reset;
lan87xx->parent.reset_hw = lan87xx_reset_hw;
lan87xx->parent.init = lan87xx_init;
lan87xx->parent.deinit = lan87xx_deinit;
lan87xx->parent.set_mediator = lan87xx_set_mediator;
lan87xx->parent.autonego_ctrl = lan87xx_autonego_ctrl;
lan87xx->parent.get_link = lan87xx_get_link;
lan87xx->parent.pwrctl = lan87xx_pwrctl;
lan87xx->parent.get_addr = lan87xx_get_addr;
lan87xx->parent.set_addr = lan87xx_set_addr;
lan87xx->parent.loopback = lan87xx_loopback;
lan87xx->parent.set_speed = lan87xx_set_speed;
lan87xx->parent.set_duplex = lan87xx_set_duplex;
lan87xx->parent.advertise_pause_ability = lan87xx_advertise_pause_ability;
lan87xx->parent.del = lan87xx_del;
return &(lan87xx->parent);
err:
return ret;
}