/*
 * board_config.h — hardware pin map for the ESP32-P4 Dante/AES67 endpoint.
 *
 * Target board: Waveshare ESP32-P4-ETH (Ethernet via IP101 GRI PHY on RMII,
 * onboard ES8311 codec + NS4150B amplifier + mic + 8ohm speaker connector,
 * 32MB PSRAM, 32MB flash). Pins verified against the board schematic
 * (docs/esp32-p4_schematic_en.pdf). Values mirror the pin table in README.md
 * — if the board ever changes, update BOTH this file and the README table
 * together (see CLAUDE.md).
 *
 * Note on I2S data direction: DOUT (GPIO9) drives the codec's DAC serial
 * input (ES8311 DSDIN); DIN (GPIO11) reads the codec's ADC serial output
 * (ES8311 ASDOUT).
 */
#pragma once

/* ---- Ethernet (RMII to IP101 GRI PHY) ---- */
#define BOARD_ETH_MDC_GPIO      31
#define BOARD_ETH_MDIO_GPIO     52
#define BOARD_ETH_REF_CLK_GPIO  50  /* external 50 MHz clock */
#define BOARD_ETH_PHY_RST_GPIO  51
#define BOARD_ETH_PHY_ADDR      1

/* ---- I2S audio to onboard ES8311 codec ---- */
#define BOARD_I2S_MCLK_GPIO     13  /* 18.432 MHz via APLL */
#define BOARD_I2S_BCLK_GPIO     12  /* bit clock */
#define BOARD_I2S_LRCLK_GPIO    10  /* word/frame clock */
#define BOARD_I2S_DOUT_GPIO      9  /* data out -> codec DAC */
#define BOARD_I2S_DIN_GPIO      11  /* data in  <- codec ADC / mic */

/* ---- Power amp enable (NS4150B) ---- */
#define BOARD_PA_ENABLE_GPIO    53  /* active high */

/* ---- I2C control bus (ES8311) ---- */
#define BOARD_I2C_SCL_GPIO      8
#define BOARD_I2C_SDA_GPIO      7

/* ---- Default audio format ---- */
#define BOARD_AUDIO_SAMPLE_RATE 48000
#define BOARD_AUDIO_BIT_DEPTH   24  /* AES67 L24 */
#define BOARD_AUDIO_CHANNELS    2