/*
 * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
 *                VA Linux Systems Inc., Fremont, California.
 * Copyright 2008 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Original Authors:
 *   Kevin E. Martin, Rickard E. Faith, Alan Hourihane
 *
 * Kernel port Author: Dave Airlie
 */

#ifndef RADEON_MODE_H
#define RADEON_MODE_H

#include <drm/display/drm_dp_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_encoder.h>
#include <drm/drm_fixed.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>

struct drm_fb_helper;
struct drm_fb_helper_surface_size;
struct drm_format_info;

struct edid;
struct drm_edid;
struct radeon_bo;
struct radeon_device;

#define to_radeon_crtc(x) container_of(x, struct radeon_crtc, base)
#define to_radeon_connector(x) container_of(x, struct radeon_connector, base)
#define to_radeon_encoder(x) container_of(x, struct radeon_encoder, base)

#define RADEON_MAX_HPD_PINS 7
#define RADEON_MAX_CRTCS 6
#define RADEON_MAX_AFMT_BLOCKS 7

enum radeon_rmx_type {
        RMX_OFF,
        RMX_FULL,
        RMX_CENTER,
        RMX_ASPECT
};

enum radeon_tv_std {
        TV_STD_NTSC,
        TV_STD_PAL,
        TV_STD_PAL_M,
        TV_STD_PAL_60,
        TV_STD_NTSC_J,
        TV_STD_SCART_PAL,
        TV_STD_SECAM,
        TV_STD_PAL_CN,
        TV_STD_PAL_N,
};

enum radeon_underscan_type {
        UNDERSCAN_OFF,
        UNDERSCAN_ON,
        UNDERSCAN_AUTO,
};

enum radeon_hpd_id {
        RADEON_HPD_1 = 0,
        RADEON_HPD_2,
        RADEON_HPD_3,
        RADEON_HPD_4,
        RADEON_HPD_5,
        RADEON_HPD_6,
        RADEON_HPD_NONE = 0xff,
};

enum radeon_output_csc {
        RADEON_OUTPUT_CSC_BYPASS = 0,
        RADEON_OUTPUT_CSC_TVRGB = 1,
        RADEON_OUTPUT_CSC_YCBCR601 = 2,
        RADEON_OUTPUT_CSC_YCBCR709 = 3,
};

#define RADEON_MAX_I2C_BUS 16

/* radeon gpio-based i2c
 * 1. "mask" reg and bits
 *    grabs the gpio pins for software use
 *    0=not held  1=held
 * 2. "a" reg and bits
 *    output pin value
 *    0=low 1=high
 * 3. "en" reg and bits
 *    sets the pin direction
 *    0=input 1=output
 * 4. "y" reg and bits
 *    input pin value
 *    0=low 1=high
 */
struct radeon_i2c_bus_rec {
        bool valid;
        /* id used by atom */
        uint8_t i2c_id;
        /* id used by atom */
        enum radeon_hpd_id hpd;
        /* can be used with hw i2c engine */
        bool hw_capable;
        /* uses multi-media i2c engine */
        bool mm_i2c;
        /* regs and bits */
        uint32_t mask_clk_reg;
        uint32_t mask_data_reg;
        uint32_t a_clk_reg;
        uint32_t a_data_reg;
        uint32_t en_clk_reg;
        uint32_t en_data_reg;
        uint32_t y_clk_reg;
        uint32_t y_data_reg;
        uint32_t mask_clk_mask;
        uint32_t mask_data_mask;
        uint32_t a_clk_mask;
        uint32_t a_data_mask;
        uint32_t en_clk_mask;
        uint32_t en_data_mask;
        uint32_t y_clk_mask;
        uint32_t y_data_mask;
};

struct radeon_tmds_pll {
    uint32_t freq;
    uint32_t value;
};

#define RADEON_MAX_BIOS_CONNECTOR 16

/* pll flags */
#define RADEON_PLL_USE_BIOS_DIVS        (1 << 0)
#define RADEON_PLL_NO_ODD_POST_DIV      (1 << 1)
#define RADEON_PLL_USE_REF_DIV          (1 << 2)
#define RADEON_PLL_LEGACY               (1 << 3)
#define RADEON_PLL_PREFER_LOW_REF_DIV   (1 << 4)
#define RADEON_PLL_PREFER_HIGH_REF_DIV  (1 << 5)
#define RADEON_PLL_PREFER_LOW_FB_DIV    (1 << 6)
#define RADEON_PLL_PREFER_HIGH_FB_DIV   (1 << 7)
#define RADEON_PLL_PREFER_LOW_POST_DIV  (1 << 8)
#define RADEON_PLL_PREFER_HIGH_POST_DIV (1 << 9)
#define RADEON_PLL_USE_FRAC_FB_DIV      (1 << 10)
#define RADEON_PLL_PREFER_CLOSEST_LOWER (1 << 11)
#define RADEON_PLL_USE_POST_DIV         (1 << 12)
#define RADEON_PLL_IS_LCD               (1 << 13)
#define RADEON_PLL_PREFER_MINM_OVER_MAXP (1 << 14)

struct radeon_pll {
        /* reference frequency */
        uint32_t reference_freq;

        /* fixed dividers */
        uint32_t reference_div;
        uint32_t post_div;

        /* pll in/out limits */
        uint32_t pll_in_min;
        uint32_t pll_in_max;
        uint32_t pll_out_min;
        uint32_t pll_out_max;
        uint32_t lcd_pll_out_min;
        uint32_t lcd_pll_out_max;
        uint32_t best_vco;

        /* divider limits */
        uint32_t min_ref_div;
        uint32_t max_ref_div;
        uint32_t min_post_div;
        uint32_t max_post_div;
        uint32_t min_feedback_div;
        uint32_t max_feedback_div;
        uint32_t min_frac_feedback_div;
        uint32_t max_frac_feedback_div;

        /* flags for the current clock */
        uint32_t flags;

        /* pll id */
        uint32_t id;
};

struct radeon_i2c_chan {
        struct i2c_adapter adapter;
        struct drm_device *dev;
        struct i2c_algo_bit_data bit;
        struct radeon_i2c_bus_rec rec;
        struct drm_dp_aux aux;
        bool has_aux;
        struct mutex mutex;
};

/* mostly for macs, but really any system without connector tables */
enum radeon_connector_table {
        CT_NONE = 0,
        CT_GENERIC,
        CT_IBOOK,
        CT_POWERBOOK_EXTERNAL,
        CT_POWERBOOK_INTERNAL,
        CT_POWERBOOK_VGA,
        CT_MINI_EXTERNAL,
        CT_MINI_INTERNAL,
        CT_IMAC_G5_ISIGHT,
        CT_EMAC,
        CT_RN50_POWER,
        CT_MAC_X800,
        CT_MAC_G5_9600,
        CT_SAM440EP,
        CT_MAC_G4_SILVER
};

enum radeon_dvo_chip {
        DVO_SIL164,
        DVO_SIL1178,
};

struct radeon_afmt {
        bool enabled;
        int offset;
        bool last_buffer_filled_status;
        int id;
};

struct radeon_mode_info {
        struct atom_context *atom_context;
        struct card_info *atom_card_info;
        enum radeon_connector_table connector_table;
        bool mode_config_initialized;
        struct radeon_crtc *crtcs[RADEON_MAX_CRTCS];
        struct radeon_afmt *afmt[RADEON_MAX_AFMT_BLOCKS];
        /* DVI-I properties */
        struct drm_property *coherent_mode_property;
        /* DAC enable load detect */
        struct drm_property *load_detect_property;
        /* TV standard */
        struct drm_property *tv_std_property;
        /* legacy TMDS PLL detect */
        struct drm_property *tmds_pll_property;
        /* underscan */
        struct drm_property *underscan_property;
        struct drm_property *underscan_hborder_property;
        struct drm_property *underscan_vborder_property;
        /* audio */
        struct drm_property *audio_property;
        /* FMT dithering */
        struct drm_property *dither_property;
        /* Output CSC */
        struct drm_property *output_csc_property;
        /* hardcoded DFP edid from BIOS */
        const struct drm_edid *bios_hardcoded_edid;

        /* firmware flags */
        u16 firmware_flags;
        /* pointer to backlight encoder */
        struct radeon_encoder *bl_encoder;

        /* bitmask for active encoder frontends */
        uint32_t active_encoders;
};

#define RADEON_MAX_BL_LEVEL 0xFF

struct radeon_backlight_privdata {
        struct radeon_encoder *encoder;
        uint8_t negative;
};

#define MAX_H_CODE_TIMING_LEN 32
#define MAX_V_CODE_TIMING_LEN 32

/* need to store these as reading
   back code tables is excessive */
struct radeon_tv_regs {
        uint32_t tv_uv_adr;
        uint32_t timing_cntl;
        uint32_t hrestart;
        uint32_t vrestart;
        uint32_t frestart;
        uint16_t h_code_timing[MAX_H_CODE_TIMING_LEN];
        uint16_t v_code_timing[MAX_V_CODE_TIMING_LEN];
};

struct radeon_atom_ss {
        uint16_t percentage;
        uint16_t percentage_divider;
        uint8_t type;
        uint16_t step;
        uint8_t delay;
        uint8_t range;
        uint8_t refdiv;
        /* asic_ss */
        uint16_t rate;
        uint16_t amount;
};

enum radeon_flip_status {
        RADEON_FLIP_NONE,
        RADEON_FLIP_PENDING,
        RADEON_FLIP_SUBMITTED
};

struct radeon_crtc {
        struct drm_crtc base;
        int crtc_id;
        bool enabled;
        bool can_tile;
        bool cursor_out_of_bounds;
        uint32_t crtc_offset;
        struct drm_gem_object *cursor_bo;
        uint64_t cursor_addr;
        int cursor_x;
        int cursor_y;
        int cursor_hot_x;
        int cursor_hot_y;
        int cursor_width;
        int cursor_height;
        int max_cursor_width;
        int max_cursor_height;
        uint32_t legacy_display_base_addr;
        enum radeon_rmx_type rmx_type;
        u8 h_border;
        u8 v_border;
        fixed20_12 vsc;
        fixed20_12 hsc;
        struct drm_display_mode native_mode;
        int pll_id;
        /* page flipping */
        struct workqueue_struct *flip_queue;
        struct radeon_flip_work *flip_work;
        enum radeon_flip_status flip_status;
        /* pll sharing */
        struct radeon_atom_ss ss;
        bool ss_enabled;
        u32 adjusted_clock;
        int bpc;
        u32 pll_reference_div;
        u32 pll_post_div;
        u32 pll_flags;
        struct drm_encoder *encoder;
        struct drm_connector *connector;
        /* for dpm */
        u32 line_time;
        u32 wm_low;
        u32 wm_high;
        u32 lb_vblank_lead_lines;
        struct drm_display_mode hw_mode;
        enum radeon_output_csc output_csc;
};

struct radeon_encoder_primary_dac {
        /* legacy primary dac */
        uint32_t ps2_pdac_adj;
};

struct radeon_encoder_lvds {
        /* legacy lvds */
        uint16_t panel_vcc_delay;
        uint8_t  panel_pwr_delay;
        uint8_t  panel_digon_delay;
        uint8_t  panel_blon_delay;
        uint16_t panel_ref_divider;
        uint8_t  panel_post_divider;
        uint16_t panel_fb_divider;
        bool     use_bios_dividers;
        uint32_t lvds_gen_cntl;
        /* panel mode */
        struct drm_display_mode native_mode;
        struct backlight_device *bl_dev;
        int      dpms_mode;
        uint8_t  backlight_level;
};

struct radeon_encoder_tv_dac {
        /* legacy tv dac */
        uint32_t ps2_tvdac_adj;
        uint32_t ntsc_tvdac_adj;
        uint32_t pal_tvdac_adj;

        int               h_pos;
        int               v_pos;
        int               h_size;
        int               supported_tv_stds;
        bool              tv_on;
        enum radeon_tv_std tv_std;
        struct radeon_tv_regs tv;
};

struct radeon_encoder_int_tmds {
        /* legacy int tmds */
        struct radeon_tmds_pll tmds_pll[4];
};

struct radeon_encoder_ext_tmds {
        /* tmds over dvo */
        struct radeon_i2c_chan *i2c_bus;
        uint8_t slave_addr;
        enum radeon_dvo_chip dvo_chip;
};

/* spread spectrum */
struct radeon_encoder_atom_dig {
        bool linkb;
        /* atom dig */
        bool coherent_mode;
        int dig_encoder; /* -1 disabled, 0 DIGA, 1 DIGB, etc. */
        /* atom lvds/edp */
        uint32_t lcd_misc;
        uint16_t panel_pwr_delay;
        uint32_t lcd_ss_id;
        /* panel mode */
        struct drm_display_mode native_mode;
        struct backlight_device *bl_dev;
        int dpms_mode;
        uint8_t backlight_level;
        int panel_mode;
        struct radeon_afmt *afmt;
        struct r600_audio_pin *pin;
};

struct radeon_encoder_atom_dac {
        enum radeon_tv_std tv_std;
};

struct radeon_encoder {
        struct drm_encoder base;
        uint32_t encoder_enum;
        uint32_t encoder_id;
        uint32_t devices;
        uint32_t active_device;
        uint32_t flags;
        uint32_t pixel_clock;
        enum radeon_rmx_type rmx_type;
        enum radeon_underscan_type underscan_type;
        uint32_t underscan_hborder;
        uint32_t underscan_vborder;
        struct drm_display_mode native_mode;
        void *enc_priv;
        int audio_polling_active;
        bool is_ext_encoder;
        u16 caps;
        struct radeon_audio_funcs *audio;
        enum radeon_output_csc output_csc;
        bool can_mst;
        uint32_t offset;
};

struct radeon_connector_atom_dig {
        uint32_t igp_lane_info;
        /* displayport */
        u8 dpcd[DP_RECEIVER_CAP_SIZE];
        u8 dp_sink_type;
        int dp_clock;
        int dp_lane_count;
        bool edp_on;
};

struct radeon_gpio_rec {
        bool valid;
        u8 id;
        u32 reg;
        u32 mask;
        u32 shift;
};

struct radeon_hpd {
        enum radeon_hpd_id hpd;
        u8 plugged_state;
        struct radeon_gpio_rec gpio;
};

struct radeon_router {
        u32 router_id;
        struct radeon_i2c_bus_rec i2c_info;
        u8 i2c_addr;
        /* i2c mux */
        bool ddc_valid;
        u8 ddc_mux_type;
        u8 ddc_mux_control_pin;
        u8 ddc_mux_state;
        /* clock/data mux */
        bool cd_valid;
        u8 cd_mux_type;
        u8 cd_mux_control_pin;
        u8 cd_mux_state;
};

enum radeon_connector_audio {
        RADEON_AUDIO_DISABLE = 0,
        RADEON_AUDIO_ENABLE = 1,
        RADEON_AUDIO_AUTO = 2
};

enum radeon_connector_dither {
        RADEON_FMT_DITHER_DISABLE = 0,
        RADEON_FMT_DITHER_ENABLE = 1,
};

struct radeon_connector {
        struct drm_connector base;
        uint32_t connector_id;
        uint32_t devices;
        struct radeon_i2c_chan *ddc_bus;
        /* some systems have an hdmi and vga port with a shared ddc line */
        bool shared_ddc;
        bool use_digital;
        /* we need to mind the EDID between detect
           and get modes due to analog/digital/tvencoder */
        struct edid *edid;
        void *con_priv;
        bool dac_load_detect;
        bool detected_by_load; /* if the connection status was determined by load */
        bool detected_hpd_without_ddc; /* if an HPD signal was detected on DVI, but ddc probing failed */
        uint16_t connector_object_id;
        struct radeon_hpd hpd;
        struct radeon_router router;
        struct radeon_i2c_chan *router_bus;
        enum radeon_connector_audio audio;
        enum radeon_connector_dither dither;
        int pixelclock_for_modeset;
};

#define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \
                                ((em) == ATOM_ENCODER_MODE_DP_MST))

struct atom_clock_dividers {
        u32 post_div;
        union {
                struct {
#ifdef __BIG_ENDIAN
                        u32 reserved : 6;
                        u32 whole_fb_div : 12;
                        u32 frac_fb_div : 14;
#else
                        u32 frac_fb_div : 14;
                        u32 whole_fb_div : 12;
                        u32 reserved : 6;
#endif
                };
                u32 fb_div;
        };
        u32 ref_div;
        bool enable_post_div;
        bool enable_dithen;
        u32 vco_mode;
        u32 real_clock;
        /* added for CI */
        u32 post_divider;
        u32 flags;
};

struct atom_mpll_param {
        union {
                struct {
#ifdef __BIG_ENDIAN
                        u32 reserved : 8;
                        u32 clkfrac : 12;
                        u32 clkf : 12;
#else
                        u32 clkf : 12;
                        u32 clkfrac : 12;
                        u32 reserved : 8;
#endif
                };
                u32 fb_div;
        };
        u32 post_div;
        u32 bwcntl;
        u32 dll_speed;
        u32 vco_mode;
        u32 yclk_sel;
        u32 qdr;
        u32 half_rate;
};

#define MEM_TYPE_GDDR5  0x50
#define MEM_TYPE_GDDR4  0x40
#define MEM_TYPE_GDDR3  0x30
#define MEM_TYPE_DDR2   0x20
#define MEM_TYPE_GDDR1  0x10
#define MEM_TYPE_DDR3   0xb0
#define MEM_TYPE_MASK   0xf0

struct atom_memory_info {
        u8 mem_vendor;
        u8 mem_type;
};

#define MAX_AC_TIMING_ENTRIES 16

struct atom_memory_clock_range_table {
        u8 num_entries;
        u8 rsv[3];
        u32 mclk[MAX_AC_TIMING_ENTRIES];
};

#define VBIOS_MC_REGISTER_ARRAY_SIZE 32
#define VBIOS_MAX_AC_TIMING_ENTRIES 20

struct atom_mc_reg_entry {
        u32 mclk_max;
        u32 mc_data[VBIOS_MC_REGISTER_ARRAY_SIZE];
};

struct atom_mc_register_address {
        u16 s1;
        u8 pre_reg_data;
};

struct atom_mc_reg_table {
        u8 last;
        u8 num_entries;
        struct atom_mc_reg_entry mc_reg_table_entry[VBIOS_MAX_AC_TIMING_ENTRIES];
        struct atom_mc_register_address mc_reg_address[VBIOS_MC_REGISTER_ARRAY_SIZE];
};

#define MAX_VOLTAGE_ENTRIES 32

struct atom_voltage_table_entry {
        u16 value;
        u32 smio_low;
};

struct atom_voltage_table {
        u32 count;
        u32 mask_low;
        u32 phase_delay;
        struct atom_voltage_table_entry entries[MAX_VOLTAGE_ENTRIES];
};

/* Driver internal use only flags of radeon_get_crtc_scanoutpos() */
#define DRM_SCANOUTPOS_VALID        (1 << 0)
#define DRM_SCANOUTPOS_IN_VBLANK    (1 << 1)
#define DRM_SCANOUTPOS_ACCURATE     (1 << 2)
#define USE_REAL_VBLANKSTART            (1 << 30)
#define GET_DISTANCE_TO_VBLANKSTART     (1 << 31)

extern void
radeon_add_atom_connector(struct drm_device *dev,
                          uint32_t connector_id,
                          uint32_t supported_device,
                          int connector_type,
                          struct radeon_i2c_bus_rec *i2c_bus,
                          uint32_t igp_lane_info,
                          uint16_t connector_object_id,
                          struct radeon_hpd *hpd,
                          struct radeon_router *router);
extern void
radeon_add_legacy_connector(struct drm_device *dev,
                            uint32_t connector_id,
                            uint32_t supported_device,
                            int connector_type,
                            struct radeon_i2c_bus_rec *i2c_bus,
                            uint16_t connector_object_id,
                            struct radeon_hpd *hpd);
extern uint32_t
radeon_get_encoder_enum(struct drm_device *dev, uint32_t supported_device,
                        uint8_t dac);
extern void radeon_link_encoder_connector(struct drm_device *dev);

extern enum radeon_tv_std
radeon_combios_get_tv_info(struct radeon_device *rdev);
extern enum radeon_tv_std
radeon_atombios_get_tv_info(struct radeon_device *rdev);
extern void radeon_atombios_get_default_voltages(struct radeon_device *rdev,
                                                 u16 *vddc, u16 *vddci, u16 *mvdd);

extern void
radeon_combios_connected_scratch_regs(struct drm_connector *connector,
                                      struct drm_encoder *encoder,
                                      bool connected);
extern void
radeon_atombios_connected_scratch_regs(struct drm_connector *connector,
                                       struct drm_encoder *encoder,
                                       bool connected);

extern struct drm_connector *
radeon_get_connector_for_encoder(struct drm_encoder *encoder);
extern struct drm_connector *
radeon_get_connector_for_encoder_init(struct drm_encoder *encoder);
extern bool radeon_dig_monitor_is_duallink(struct drm_encoder *encoder,
                                    u32 pixel_clock);

extern u16 radeon_encoder_get_dp_bridge_encoder_id(struct drm_encoder *encoder);
extern u16 radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector);
extern bool radeon_connector_is_dp12_capable(struct drm_connector *connector);
extern int radeon_get_monitor_bpc(struct drm_connector *connector);

extern void radeon_connector_hotplug(struct drm_connector *connector);
extern int radeon_dp_mode_valid_helper(struct drm_connector *connector,
                                       const struct drm_display_mode *mode);
extern void radeon_dp_set_link_config(struct drm_connector *connector,
                                      const struct drm_display_mode *mode);
extern void radeon_dp_link_train(struct drm_encoder *encoder,
                                 struct drm_connector *connector);
extern bool radeon_dp_needs_link_train(struct radeon_connector *radeon_connector);
extern u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector);
extern bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector);
extern int radeon_dp_get_panel_mode(struct drm_encoder *encoder,
                                    struct drm_connector *connector);
extern void radeon_dp_set_rx_power_state(struct drm_connector *connector,
                                         u8 power_state);
extern void radeon_dp_aux_init(struct radeon_connector *radeon_connector);
extern ssize_t
radeon_dp_aux_transfer_native(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg);

extern void atombios_dig_encoder_setup(struct drm_encoder *encoder, int action, int panel_mode);
extern void atombios_dig_encoder_setup2(struct drm_encoder *encoder, int action, int panel_mode, int enc_override);
extern void radeon_atom_encoder_init(struct radeon_device *rdev);
extern void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev);
extern void atombios_dig_transmitter_setup(struct drm_encoder *encoder,
                                           int action, uint8_t lane_num,
                                           uint8_t lane_set);
extern void atombios_dig_transmitter_setup2(struct drm_encoder *encoder,
                                            int action, uint8_t lane_num,
                                            uint8_t lane_set, int fe);
extern void radeon_atom_ext_encoder_setup_ddc(struct drm_encoder *encoder);
extern struct drm_encoder *radeon_get_external_encoder(struct drm_encoder *encoder);
void radeon_atom_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le);

extern void radeon_i2c_init(struct radeon_device *rdev);
extern void radeon_i2c_fini(struct radeon_device *rdev);
extern void radeon_combios_i2c_init(struct radeon_device *rdev);
extern void radeon_atombios_i2c_init(struct radeon_device *rdev);
extern void radeon_i2c_add(struct radeon_device *rdev,
                           struct radeon_i2c_bus_rec *rec,
                           const char *name);
extern struct radeon_i2c_chan *radeon_i2c_lookup(struct radeon_device *rdev,
                                                 struct radeon_i2c_bus_rec *i2c_bus);
extern struct radeon_i2c_chan *radeon_i2c_create(struct drm_device *dev,
                                                 struct radeon_i2c_bus_rec *rec,
                                                 const char *name);
extern void radeon_i2c_destroy(struct radeon_i2c_chan *i2c);
extern void radeon_i2c_get_byte(struct radeon_i2c_chan *i2c_bus,
                                u8 slave_addr,
                                u8 addr,
                                u8 *val);
extern void radeon_i2c_put_byte(struct radeon_i2c_chan *i2c,
                                u8 slave_addr,
                                u8 addr,
                                u8 val);
extern void radeon_router_select_ddc_port(struct radeon_connector *radeon_connector);
extern void radeon_router_select_cd_port(struct radeon_connector *radeon_connector);
extern bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux);

extern bool radeon_atombios_get_ppll_ss_info(struct radeon_device *rdev,
                                             struct radeon_atom_ss *ss,
                                             int id);
extern bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev,
                                             struct radeon_atom_ss *ss,
                                             int id, u32 clock);
extern struct radeon_gpio_rec radeon_atombios_lookup_gpio(struct radeon_device *rdev,
                                                          u8 id);

extern void radeon_compute_pll_legacy(struct radeon_pll *pll,
                                      uint64_t freq,
                                      uint32_t *dot_clock_p,
                                      uint32_t *fb_div_p,
                                      uint32_t *frac_fb_div_p,
                                      uint32_t *ref_div_p,
                                      uint32_t *post_div_p);

extern void radeon_compute_pll_avivo(struct radeon_pll *pll,
                                     u32 freq,
                                     u32 *dot_clock_p,
                                     u32 *fb_div_p,
                                     u32 *frac_fb_div_p,
                                     u32 *ref_div_p,
                                     u32 *post_div_p);

extern void radeon_setup_encoder_clones(struct drm_device *dev);

struct drm_encoder *radeon_encoder_legacy_lvds_add(struct drm_device *dev, int bios_index);
struct drm_encoder *radeon_encoder_legacy_primary_dac_add(struct drm_device *dev, int bios_index, int with_tv);
struct drm_encoder *radeon_encoder_legacy_tv_dac_add(struct drm_device *dev, int bios_index, int with_tv);
struct drm_encoder *radeon_encoder_legacy_tmds_int_add(struct drm_device *dev, int bios_index);
struct drm_encoder *radeon_encoder_legacy_tmds_ext_add(struct drm_device *dev, int bios_index);
extern void atombios_dvo_setup(struct drm_encoder *encoder, int action);
extern void atombios_digital_setup(struct drm_encoder *encoder, int action);
extern int atombios_get_encoder_mode(struct drm_encoder *encoder);
extern bool atombios_set_edp_panel_power(struct drm_connector *connector, int action);
extern void radeon_encoder_set_active_device(struct drm_encoder *encoder);
extern bool radeon_encoder_is_digital(struct drm_encoder *encoder);

extern void radeon_crtc_load_lut(struct drm_crtc *crtc);
extern int atombios_crtc_set_base(struct drm_crtc *crtc, int x, int y,
                                   struct drm_framebuffer *old_fb);
extern int atombios_crtc_mode_set(struct drm_crtc *crtc,
                                   struct drm_display_mode *mode,
                                   struct drm_display_mode *adjusted_mode,
                                   int x, int y,
                                   struct drm_framebuffer *old_fb);
extern void atombios_crtc_dpms(struct drm_crtc *crtc, int mode);

extern int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
                                 struct drm_framebuffer *old_fb);
extern int radeon_crtc_do_set_base(struct drm_crtc *crtc,
                                   struct drm_framebuffer *fb,
                                   int x, int y);
extern int radeon_crtc_cursor_set2(struct drm_crtc *crtc,
                                   struct drm_file *file_priv,
                                   uint32_t handle,
                                   uint32_t width,
                                   uint32_t height,
                                   int32_t hot_x,
                                   int32_t hot_y);
extern int radeon_crtc_cursor_move(struct drm_crtc *crtc,
                                   int x, int y);
extern void radeon_cursor_reset(struct drm_crtc *crtc);

extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
                                      unsigned int flags, int *vpos, int *hpos,
                                      ktime_t *stime, ktime_t *etime,
                                      const struct drm_display_mode *mode);

extern bool
radeon_get_crtc_scanout_position(struct drm_crtc *crtc, bool in_vblank_irq,
                                 int *vpos, int *hpos,
                                 ktime_t *stime, ktime_t *etime,
                                 const struct drm_display_mode *mode);

extern bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev);
extern struct edid *
radeon_bios_get_hardcoded_edid(struct radeon_device *rdev);
extern bool radeon_atom_get_clock_info(struct drm_device *dev);
extern bool radeon_combios_get_clock_info(struct drm_device *dev);
extern struct radeon_encoder_atom_dig *
radeon_atombios_get_lvds_info(struct radeon_encoder *encoder);
extern bool radeon_atombios_get_tmds_info(struct radeon_encoder *encoder,
                                          struct radeon_encoder_int_tmds *tmds);
extern bool radeon_legacy_get_tmds_info_from_combios(struct radeon_encoder *encoder,
                                                     struct radeon_encoder_int_tmds *tmds);
extern bool radeon_legacy_get_tmds_info_from_table(struct radeon_encoder *encoder,
                                                   struct radeon_encoder_int_tmds *tmds);
extern bool radeon_legacy_get_ext_tmds_info_from_combios(struct radeon_encoder *encoder,
                                                         struct radeon_encoder_ext_tmds *tmds);
extern bool radeon_legacy_get_ext_tmds_info_from_table(struct radeon_encoder *encoder,
                                                       struct radeon_encoder_ext_tmds *tmds);
extern struct radeon_encoder_primary_dac *
radeon_atombios_get_primary_dac_info(struct radeon_encoder *encoder);
extern struct radeon_encoder_tv_dac *
radeon_atombios_get_tv_dac_info(struct radeon_encoder *encoder);
extern struct radeon_encoder_lvds *
radeon_combios_get_lvds_info(struct radeon_encoder *encoder);
extern struct radeon_encoder_tv_dac *
radeon_combios_get_tv_dac_info(struct radeon_encoder *encoder);
extern struct radeon_encoder_primary_dac *
radeon_combios_get_primary_dac_info(struct radeon_encoder *encoder);
extern bool radeon_combios_external_tmds_setup(struct drm_encoder *encoder);
extern void radeon_external_tmds_setup(struct drm_encoder *encoder);
extern void radeon_combios_output_lock(struct drm_encoder *encoder, bool lock);
extern void radeon_combios_initialize_bios_scratch_regs(struct drm_device *dev);
extern void radeon_atom_output_lock(struct drm_encoder *encoder, bool lock);
extern void radeon_atom_initialize_bios_scratch_regs(struct drm_device *dev);
extern void radeon_save_bios_scratch_regs(struct radeon_device *rdev);
extern void radeon_restore_bios_scratch_regs(struct radeon_device *rdev);
extern void
radeon_atombios_encoder_crtc_scratch_regs(struct drm_encoder *encoder, int crtc);
extern void
radeon_atombios_encoder_dpms_scratch_regs(struct drm_encoder *encoder, bool on);
extern void
radeon_combios_encoder_crtc_scratch_regs(struct drm_encoder *encoder, int crtc);
extern void
radeon_combios_encoder_dpms_scratch_regs(struct drm_encoder *encoder, bool on);
int radeon_framebuffer_init(struct drm_device *dev,
                             struct drm_framebuffer *rfb,
                             const struct drm_format_info *info,
                             const struct drm_mode_fb_cmd2 *mode_cmd,
                             struct drm_gem_object *obj);

int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev);
bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev);
void radeon_atombios_init_crtc(struct drm_device *dev,
                               struct radeon_crtc *radeon_crtc);
void radeon_legacy_init_crtc(struct drm_device *dev,
                             struct radeon_crtc *radeon_crtc);

void radeon_get_clock_info(struct drm_device *dev);

extern bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev);
extern bool radeon_get_atom_connector_info_from_supported_devices_table(struct drm_device *dev);

void radeon_enc_destroy(struct drm_encoder *encoder);
void radeon_copy_fb(struct drm_device *dev, struct drm_gem_object *dst_obj);
void radeon_combios_asic_init(struct drm_device *dev);
bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
                                        const struct drm_display_mode *mode,
                                        struct drm_display_mode *adjusted_mode);
void radeon_panel_mode_fixup(struct drm_encoder *encoder,
                             struct drm_display_mode *adjusted_mode);
void atom_rv515_force_tv_scaler(struct radeon_device *rdev, struct radeon_crtc *radeon_crtc);

/* legacy tv */
void radeon_legacy_tv_adjust_crtc_reg(struct drm_encoder *encoder,
                                      uint32_t *h_total_disp, uint32_t *h_sync_strt_wid,
                                      uint32_t *v_total_disp, uint32_t *v_sync_strt_wid);
void radeon_legacy_tv_adjust_pll1(struct drm_encoder *encoder,
                                  uint32_t *htotal_cntl, uint32_t *ppll_ref_div,
                                  uint32_t *ppll_div_3, uint32_t *pixclks_cntl);
void radeon_legacy_tv_adjust_pll2(struct drm_encoder *encoder,
                                  uint32_t *htotal2_cntl, uint32_t *p2pll_ref_div,
                                  uint32_t *p2pll_div_0, uint32_t *pixclks_cntl);
void radeon_legacy_tv_mode_set(struct drm_encoder *encoder,
                               struct drm_display_mode *mode,
                               struct drm_display_mode *adjusted_mode);

/* fmt blocks */
void avivo_program_fmt(struct drm_encoder *encoder);
void dce3_program_fmt(struct drm_encoder *encoder);
void dce4_program_fmt(struct drm_encoder *encoder);
void dce8_program_fmt(struct drm_encoder *encoder);

/* fbdev layer */
#if defined(CONFIG_DRM_FBDEV_EMULATION)
int radeon_fbdev_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
                                    struct drm_fb_helper_surface_size *sizes);
#define RADEON_FBDEV_DRIVER_OPS \
        .fbdev_probe = radeon_fbdev_driver_fbdev_probe
bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj);
#else
#define RADEON_FBDEV_DRIVER_OPS \
        .fbdev_probe = NULL
static inline bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj)
{
        return false;
}
#endif

void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id);

void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id);

int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder, int fe_idx);
void radeon_atom_release_dig_encoder(struct radeon_device *rdev, int enc_idx);
#endif