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#pragma once
#include <stdbool.h>
#include <stdint.h>
#include "esp_err.h"
#include "driver/i2c_master.h"
// Initialize the panel-side MCU over I2C, then bring up the DSI link in
// video (DPI) mode. Safe to call when the panel is not attached — returns
// an error and lets the rest of the firmware keep running.
esp_err_t display_init(void);
bool display_is_up(void);
// The Hosyond's I2C bus carries both the panel-MCU (0x45) and the touch
// IC (0x38). Display owns the bus; touch shares it via this getter.
// Returns NULL before display_init() succeeds.
i2c_master_bus_handle_t display_i2c_bus(void);
// 0–100, gamma-corrected to 0–255 on the panel-MCU PWM register.
// brightness=0 is fully off (backlight enable line de-asserted).
esp_err_t display_set_brightness(uint8_t brightness_0_100);
// Sleep / wake hooks for the wake/sleep state machine (M6).
// Sleep cuts backlight; wake restores last brightness.
esp_err_t display_sleep(void);
esp_err_t display_wake(void);
// Pulse the touch IC's reset line (PC_RST_TP_N) via the panel MCU. Used
// by touch_init() when the FT5426 boots into a wedged state and refuses
// to leave dev_mode=0xff.
esp_err_t display_touch_reset_pulse(void);
// Blit an RGB565 source image to the panel, applying the current
// orientation. Source dimensions must match the effective resolution:
// portrait -> src is 480x800 (rotated 90° CW into the 800x480 panel)
// landscape -> src is 800x480 (copied 1:1)
// Used by /frame after JPEG decode.
esp_err_t display_present_rgb565(const uint16_t *src,
uint16_t src_w,
uint16_t src_h);
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