/* $NetBSD: dw_hdmi.h,v 1.8 2021/12/19 11:01:11 riastradh Exp $ */

/* $NetBSD: dw_hdmi.h,v 1.8 2021/12/19 11:01:11 riastradh Exp $ */

/*-
* Copyright (c) 2019 Jared D. McNeill <[email protected]>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef _DEV_IC_DWHDMI_H
#define _DEV_IC_DWHDMI_H

#include <dev/i2c/i2cvar.h>
#include <dev/i2c/ddcreg.h>

#include <dev/audio/audio_dai.h>

#include <drm/drm_bridge.h>
#include <drm/drm_connector.h>
#include <drm/drm_drv.h>
#include <drm/drm_modes.h>

struct dwhdmi_softc;

struct dwhdmi_connector {
struct drm_connector base;
struct dwhdmi_softc *sc;

bool hdmi_monitor;
bool monitor_audio;
};

struct dwhdmi_phy_config {
u_int pixel_clock;
uint32_t sym;
uint32_t term;
uint32_t vlev;
};

struct dwhdmi_mpll_config {
u_int pixel_clock;
uint32_t cpce;
uint32_t gmp;
uint32_t curr;
};

struct dwhdmi_softc {
device_t sc_dev;
bus_space_tag_t sc_bst;
bus_space_handle_t sc_bsh;
u_int sc_reg_width;
u_int sc_flags;
#define DWHDMI_USE_INTERNAL_PHY __BIT(0)
u_int sc_scl_hcnt;
u_int sc_scl_lcnt;

u_int sc_phytype;
u_int sc_version;

i2c_tag_t sc_ic;
struct i2c_controller sc_ic_builtin;

struct audio_dai_device sc_dai;
uint8_t sc_swvol;

struct dwhdmi_connector sc_connector;
struct drm_bridge sc_bridge;

struct drm_display_mode sc_curmode;

const struct dwhdmi_mpll_config *sc_mpll_config;
const struct dwhdmi_phy_config *sc_phy_config;

enum drm_connector_status (*sc_detect)(struct dwhdmi_softc *, bool);
void (*sc_enable)(struct dwhdmi_softc *);
void (*sc_disable)(struct dwhdmi_softc *);
void (*sc_mode_set)(struct dwhdmi_softc *,
const struct drm_display_mode *,
const struct drm_display_mode *);
};

#define to_dwhdmi_connector(x) container_of(x, struct dwhdmi_connector, base)

int dwhdmi_attach(struct dwhdmi_softc *);
int dwhdmi_bind(struct dwhdmi_softc *, struct drm_encoder *);

uint8_t dwhdmi_read(struct dwhdmi_softc *, bus_size_t);
void dwhdmi_write(struct dwhdmi_softc *, bus_size_t, uint8_t);

enum drm_connector_status dwhdmi_phy_detect(struct dwhdmi_softc *, bool);
void dwhdmi_phy_enable(struct dwhdmi_softc *);
void dwhdmi_phy_disable(struct dwhdmi_softc *);
void dwhdmi_phy_mode_set(struct dwhdmi_softc *,
const struct drm_display_mode *,
const struct drm_display_mode *);

#endif /* !_DEV_IC_DWHDMI_H */