Quelle  dw_hdmi.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2011 Freescale Semiconductor, Inc.
 */

#ifndef __DW_HDMI__
#define __DW_HDMI__

#include <sound/hdmi-codec.h>

struct drm_display_info;
struct drm_display_mode;
struct drm_encoder;
struct dw_hdmi;
struct platform_device;

/**
 * DOC: Supported input formats and encodings
 *
 * Depending on the Hardware configuration of the Controller IP, it supports
 * a subset of the following input formats and encodings on its internal
 * 48bit bus.
 *
 * +----------------------+----------------------------------+------------------------------+
 * | Format Name          | Format Code                      | Encodings                    |
 * +----------------------+----------------------------------+------------------------------+
 * | RGB 4:4:4 8bit       | ``MEDIA_BUS_FMT_RGB888_1X24``    | ``V4L2_YCBCR_ENC_DEFAULT``   |
 * +----------------------+----------------------------------+------------------------------+
 * | RGB 4:4:4 10bits     | ``MEDIA_BUS_FMT_RGB101010_1X30`` | ``V4L2_YCBCR_ENC_DEFAULT``   |
 * +----------------------+----------------------------------+------------------------------+
 * | RGB 4:4:4 12bits     | ``MEDIA_BUS_FMT_RGB121212_1X36`` | ``V4L2_YCBCR_ENC_DEFAULT``   |
 * +----------------------+----------------------------------+------------------------------+
 * | RGB 4:4:4 16bits     | ``MEDIA_BUS_FMT_RGB161616_1X48`` | ``V4L2_YCBCR_ENC_DEFAULT``   |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:4:4 8bit     | ``MEDIA_BUS_FMT_YUV8_1X24``      | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:4:4 10bits   | ``MEDIA_BUS_FMT_YUV10_1X30``     | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:4:4 12bits   | ``MEDIA_BUS_FMT_YUV12_1X36``     | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:4:4 16bits   | ``MEDIA_BUS_FMT_YUV16_1X48``     | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV601``  |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_XV709``  |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:2:2 8bit     | ``MEDIA_BUS_FMT_UYVY8_1X16``     | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:2:2 10bits   | ``MEDIA_BUS_FMT_UYVY10_1X20``    | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:2:2 12bits   | ``MEDIA_BUS_FMT_UYVY12_1X24``    | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:2:0 8bit     | ``MEDIA_BUS_FMT_UYYVYY8_0_5X24`` | ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:2:0 10bits   | ``MEDIA_BUS_FMT_UYYVYY10_0_5X30``| ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:2:0 12bits   | ``MEDIA_BUS_FMT_UYYVYY12_0_5X36``| ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * +----------------------+----------------------------------+------------------------------+
 * | YCbCr 4:2:0 16bits   | ``MEDIA_BUS_FMT_UYYVYY16_0_5X48``| ``V4L2_YCBCR_ENC_601``       |
 * |                      |                                  | or ``V4L2_YCBCR_ENC_709``    |
 * +----------------------+----------------------------------+------------------------------+
 */

enum {
 DW_HDMI_RES_8,
 DW_HDMI_RES_10,
 DW_HDMI_RES_12,
 DW_HDMI_RES_MAX,
};

enum dw_hdmi_phy_type {
 DW_HDMI_PHY_DWC_HDMI_TX_PHY = 0x00,
 DW_HDMI_PHY_DWC_MHL_PHY_HEAC = 0xb2,
 DW_HDMI_PHY_DWC_MHL_PHY = 0xc2,
 DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY_HEAC = 0xe2,
 DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY = 0xf2,
 DW_HDMI_PHY_DWC_HDMI20_TX_PHY = 0xf3,
 DW_HDMI_PHY_VENDOR_PHY = 0xfe,
};

struct dw_hdmi_mpll_config {
 unsigned long mpixelclock;
 struct {
  u16 cpce;
  u16 gmp;
 } res[DW_HDMI_RES_MAX];
};

struct dw_hdmi_curr_ctrl {
 unsigned long mpixelclock;
 u16 curr[DW_HDMI_RES_MAX];
};

struct dw_hdmi_phy_config {
 unsigned long mpixelclock;
 u16 sym_ctr;    /*clock symbol and transmitter control*/
 u16 term;       /*transmission termination value*/
 u16 vlev_ctr;   /* voltage level control */
};

struct dw_hdmi_phy_ops {
 int (*init)(struct dw_hdmi *hdmi, void *data,
      const struct drm_display_info *display,
      const struct drm_display_mode *mode);
 void (*disable)(struct dw_hdmi *hdmi, void *data);
 enum drm_connector_status (*read_hpd)(struct dw_hdmi *hdmi, void *data);
 void (*update_hpd)(struct dw_hdmi *hdmi, void *data,
      bool force, bool disabled, bool rxsense);
 void (*setup_hpd)(struct dw_hdmi *hdmi, void *data);
};

struct dw_hdmi_plat_data {
 struct regmap *regm;

 unsigned int output_port;

 unsigned long input_bus_encoding;
 bool use_drm_infoframe;
 bool ycbcr_420_allowed;

 /*
  * Private data passed to all the .mode_valid() and .configure_phy()
  * callback functions.
 */
 void *priv_data;

 /* Platform-specific mode validation (optional). */
 enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
        const struct drm_display_info *info,
        const struct drm_display_mode *mode);

 /* Platform-specific audio enable/disable (optional) */
 void (*enable_audio)(struct dw_hdmi *hdmi, int channel,
        int width, int rate, int non_pcm);
 void (*disable_audio)(struct dw_hdmi *hdmi);

 /* Vendor PHY support */
 const struct dw_hdmi_phy_ops *phy_ops;
 const char *phy_name;
 void *phy_data;
 unsigned int phy_force_vendor;

 /* Synopsys PHY support */
 const struct dw_hdmi_mpll_config *mpll_cfg;
 const struct dw_hdmi_curr_ctrl *cur_ctr;
 const struct dw_hdmi_phy_config *phy_config;
 int (*configure_phy)(struct dw_hdmi *hdmi, void *data,
        unsigned long mpixelclock);

 unsigned int disable_cec : 1;
};

struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
         const struct dw_hdmi_plat_data *plat_data);
void dw_hdmi_remove(struct dw_hdmi *hdmi);
void dw_hdmi_unbind(struct dw_hdmi *hdmi);
struct dw_hdmi *dw_hdmi_bind(struct platform_device *pdev,
        struct drm_encoder *encoder,
        const struct dw_hdmi_plat_data *plat_data);

void dw_hdmi_resume(struct dw_hdmi *hdmi);

void dw_hdmi_setup_rx_sense(struct dw_hdmi *hdmi, bool hpd, bool rx_sense);

int dw_hdmi_set_plugged_cb(struct dw_hdmi *hdmi, hdmi_codec_plugged_cb fn,
      struct device *codec_dev);
void dw_hdmi_set_sample_non_pcm(struct dw_hdmi *hdmi, unsigned int non_pcm);
void dw_hdmi_set_sample_width(struct dw_hdmi *hdmi, unsigned int width);
void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate);
void dw_hdmi_set_channel_count(struct dw_hdmi *hdmi, unsigned int cnt);
void dw_hdmi_set_channel_status(struct dw_hdmi *hdmi, u8 *channel_status);
void dw_hdmi_set_channel_allocation(struct dw_hdmi *hdmi, unsigned int ca);
void dw_hdmi_audio_enable(struct dw_hdmi *hdmi);
void dw_hdmi_audio_disable(struct dw_hdmi *hdmi);
void dw_hdmi_set_high_tmds_clock_ratio(struct dw_hdmi *hdmi,
           const struct drm_display_info *display);

/* PHY configuration */
void dw_hdmi_phy_i2c_set_addr(struct dw_hdmi *hdmi, u8 address);
void dw_hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
      unsigned char addr);

void dw_hdmi_phy_gen1_reset(struct dw_hdmi *hdmi);

void dw_hdmi_phy_gen2_pddq(struct dw_hdmi *hdmi, u8 enable);
void dw_hdmi_phy_gen2_txpwron(struct dw_hdmi *hdmi, u8 enable);
void dw_hdmi_phy_gen2_reset(struct dw_hdmi *hdmi);

enum drm_connector_status dw_hdmi_phy_read_hpd(struct dw_hdmi *hdmi,
            void *data);
void dw_hdmi_phy_update_hpd(struct dw_hdmi *hdmi, void *data,
       bool force, bool disabled, bool rxsense);
void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data);

bool dw_hdmi_bus_fmt_is_420(struct dw_hdmi *hdmi);

#endif /* __IMX_HDMI_H__ */