/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2009-2011, Intel Corporation.
 */

#ifndef __INTEL_DRV_H__
#define __INTEL_DRV_H__

#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <drm/drm_crtc.h>
#include <drm/drm_encoder.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_vblank.h>
#include "gma_display.h"

/*
 * Display related stuff
 */

/* maximum connectors per crtcs in the mode set */
#define INTELFB_CONN_LIMIT 4

/* Intel Pipe Clone Bit */
#define INTEL_HDMIB_CLONE_BIT 1
#define INTEL_HDMIC_CLONE_BIT 2
#define INTEL_HDMID_CLONE_BIT 3
#define INTEL_HDMIE_CLONE_BIT 4
#define INTEL_HDMIF_CLONE_BIT 5
#define INTEL_SDVO_NON_TV_CLONE_BIT 6
#define INTEL_SDVO_TV_CLONE_BIT 7
#define INTEL_SDVO_LVDS_CLONE_BIT 8
#define INTEL_ANALOG_CLONE_BIT 9
#define INTEL_TV_CLONE_BIT 10
#define INTEL_DP_B_CLONE_BIT 11
#define INTEL_DP_C_CLONE_BIT 12
#define INTEL_DP_D_CLONE_BIT 13
#define INTEL_LVDS_CLONE_BIT 14
#define INTEL_DVO_TMDS_CLONE_BIT 15
#define INTEL_DVO_LVDS_CLONE_BIT 16
#define INTEL_EDP_CLONE_BIT 17

/* these are outputs from the chip - integrated only
 * external chips are via DVO or SDVO output */
#define INTEL_OUTPUT_UNUSED 0
#define INTEL_OUTPUT_ANALOG 1
#define INTEL_OUTPUT_DVO 2
#define INTEL_OUTPUT_SDVO 3
#define INTEL_OUTPUT_LVDS 4
#define INTEL_OUTPUT_TVOUT 5
#define INTEL_OUTPUT_HDMI 6
#define INTEL_OUTPUT_MIPI 7
#define INTEL_OUTPUT_MIPI2 8
#define INTEL_OUTPUT_DISPLAYPORT 9
#define INTEL_OUTPUT_EDP 10

/*
 * Hold information useally put on the device driver privates here,
 * since it needs to be shared across multiple of devices drivers privates.
 */
struct psb_intel_mode_device {

        /*
         * Abstracted memory manager operations
         */
         size_t(*bo_offset) (struct drm_device *dev, void *bo);

        /*
         * LVDS info
         */
        int backlight_duty_cycle;       /* restore backlight to this value */
        bool panel_wants_dither;
        struct drm_display_mode *panel_fixed_mode;
        struct drm_display_mode *panel_fixed_mode2;
        struct drm_display_mode *vbt_mode;      /* if any */

        uint32_t saveBLC_PWM_CTL;
};

struct gma_i2c_chan {
        struct i2c_adapter base;
        struct i2c_algo_bit_data algo;
        u8 target_addr;

        /* for getting at dev. private (mmio etc.) */
        struct drm_device *drm_dev;
        u32 reg; /* GPIO reg */
};

struct gma_encoder {
        struct drm_encoder base;
        int type;
        bool needs_tv_clock;
        void (*hot_plug)(struct gma_encoder *);
        int crtc_mask;
        int clone_mask;
        u32 ddi_select; /* Channel info */
#define DDI0_SELECT     0x01
#define DDI1_SELECT     0x02
#define DP_MASK         0x8000
#define DDI_MASK        0x03
        void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */

        /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
           own set of output privates */
        struct gma_i2c_chan *i2c_bus;
};

struct gma_connector {
        struct drm_connector base;
        struct gma_encoder *encoder;

        void (*save)(struct drm_connector *connector);
        void (*restore)(struct drm_connector *connector);
};

struct psb_intel_crtc_state {
        uint32_t saveDSPCNTR;
        uint32_t savePIPECONF;
        uint32_t savePIPESRC;
        uint32_t saveDPLL;
        uint32_t saveFP0;
        uint32_t saveFP1;
        uint32_t saveHTOTAL;
        uint32_t saveHBLANK;
        uint32_t saveHSYNC;
        uint32_t saveVTOTAL;
        uint32_t saveVBLANK;
        uint32_t saveVSYNC;
        uint32_t saveDSPSTRIDE;
        uint32_t saveDSPSIZE;
        uint32_t saveDSPPOS;
        uint32_t saveDSPBASE;
        uint32_t savePalette[256];
};

struct gma_crtc {
        struct drm_crtc base;
        int pipe;
        int plane;
        uint32_t cursor_addr;
        struct psb_gem_object *cursor_pobj;
        u8 lut_adj[256];
        struct psb_intel_framebuffer *fbdev_fb;
        /* a mode_set for fbdev users on this crtc */
        struct drm_mode_set mode_set;

        /* GEM object that holds our cursor */
        struct drm_gem_object *cursor_obj;

        struct drm_display_mode saved_mode;
        struct drm_display_mode saved_adjusted_mode;

        struct psb_intel_mode_device *mode_dev;

        /*crtc mode setting flags*/
        u32 mode_flags;

        bool active;

        /* Saved Crtc HW states */
        struct psb_intel_crtc_state *crtc_state;

        const struct gma_clock_funcs *clock_funcs;

        struct drm_pending_vblank_event *page_flip_event;
};

#define to_gma_crtc(x)  \
                container_of(x, struct gma_crtc, base)
#define to_gma_connector(x) \
                container_of(x, struct gma_connector, base)
#define to_gma_encoder(x)       \
                container_of(x, struct gma_encoder, base)
#define to_psb_intel_framebuffer(x)     \
                container_of(x, struct psb_intel_framebuffer, base)
#define to_gma_i2c_chan(x)      \
                container_of(x, struct gma_i2c_chan, base)

struct gma_i2c_chan *gma_i2c_create(struct drm_device *dev, const u32 reg,
                                    const char *name);
void gma_i2c_destroy(struct gma_i2c_chan *chan);
int psb_intel_ddc_get_modes(struct drm_connector *connector,
                            struct i2c_adapter *adapter);

extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
                            struct psb_intel_mode_device *mode_dev);
extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
extern void psb_intel_lvds_init(struct drm_device *dev,
                            struct psb_intel_mode_device *mode_dev);
extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
extern void oaktrail_lvds_init(struct drm_device *dev,
                           struct psb_intel_mode_device *mode_dev);
struct gma_i2c_chan *oaktrail_lvds_i2c_init(struct drm_device *dev);

extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
extern void gma_connector_attach_encoder(struct gma_connector *connector,
                                         struct gma_encoder *encoder);

static inline struct gma_encoder *gma_attached_encoder(
                                                struct drm_connector *connector)
{
        return to_gma_connector(connector)->encoder;
}

extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
                                                    struct drm_crtc *crtc);
extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
                                                 int pipe);
extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
                                      const struct drm_display_mode *mode,
                                      struct drm_display_mode *adjusted_mode);
extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
                                     const struct drm_display_mode *mode);
extern int psb_intel_lvds_set_property(struct drm_connector *connector,
                                        struct drm_property *property,
                                        uint64_t value);
extern void psb_intel_lvds_destroy(struct drm_connector *connector);

/* intel_gmbus.c */
extern void gma_intel_i2c_reset(struct drm_device *dev);
extern int gma_intel_setup_gmbus(struct drm_device *dev);
extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
extern void gma_intel_teardown_gmbus(struct drm_device *dev);

/* DP support */
extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
                                        struct drm_display_mode *mode,
                                        struct drm_display_mode *adjusted_mode);

extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
extern void cdv_sb_reset(struct drm_device *dev);

extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);

#endif                          /* __INTEL_DRV_H__ */