LXR linux/drivers/gpu/drm/gma500/psb_intel

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (c) 2009-2011, Intel Corporation.
   4 */
   5
   6#ifndef __INTEL_DRV_H__
   7#define __INTEL_DRV_H__
   8
   9#include <linux/i2c.h>
  10#include <linux/i2c-algo-bit.h>
  11#include <drm/drm_crtc.h>
  12#include <drm/drm_crtc_helper.h>
  13#include <drm/drm_encoder.h>
  14#include <drm/drm_probe_helper.h>
  15#include <drm/drm_vblank.h>
  16#include "gma_display.h"
  17
  18/*
  19 * Display related stuff
  20 */
  21
  22/* maximum connectors per crtcs in the mode set */
  23#define INTELFB_CONN_LIMIT 4
  24
  25/* Intel Pipe Clone Bit */
  26#define INTEL_HDMIB_CLONE_BIT 1
  27#define INTEL_HDMIC_CLONE_BIT 2
  28#define INTEL_HDMID_CLONE_BIT 3
  29#define INTEL_HDMIE_CLONE_BIT 4
  30#define INTEL_HDMIF_CLONE_BIT 5
  31#define INTEL_SDVO_NON_TV_CLONE_BIT 6
  32#define INTEL_SDVO_TV_CLONE_BIT 7
  33#define INTEL_SDVO_LVDS_CLONE_BIT 8
  34#define INTEL_ANALOG_CLONE_BIT 9
  35#define INTEL_TV_CLONE_BIT 10
  36#define INTEL_DP_B_CLONE_BIT 11
  37#define INTEL_DP_C_CLONE_BIT 12
  38#define INTEL_DP_D_CLONE_BIT 13
  39#define INTEL_LVDS_CLONE_BIT 14
  40#define INTEL_DVO_TMDS_CLONE_BIT 15
  41#define INTEL_DVO_LVDS_CLONE_BIT 16
  42#define INTEL_EDP_CLONE_BIT 17
  43
  44/* these are outputs from the chip - integrated only
  45 * external chips are via DVO or SDVO output */
  46#define INTEL_OUTPUT_UNUSED 0
  47#define INTEL_OUTPUT_ANALOG 1
  48#define INTEL_OUTPUT_DVO 2
  49#define INTEL_OUTPUT_SDVO 3
  50#define INTEL_OUTPUT_LVDS 4
  51#define INTEL_OUTPUT_TVOUT 5
  52#define INTEL_OUTPUT_HDMI 6
  53#define INTEL_OUTPUT_MIPI 7
  54#define INTEL_OUTPUT_MIPI2 8
  55#define INTEL_OUTPUT_DISPLAYPORT 9
  56#define INTEL_OUTPUT_EDP 10
  57
  58/*
  59 * Hold information useally put on the device driver privates here,
  60 * since it needs to be shared across multiple of devices drivers privates.
  61 */
  62struct psb_intel_mode_device {
  63
  64        /*
  65         * Abstracted memory manager operations
  66         */
  67         size_t(*bo_offset) (struct drm_device *dev, void *bo);
  68
  69        /*
  70         * LVDS info
  71         */
  72        int backlight_duty_cycle;       /* restore backlight to this value */
  73        bool panel_wants_dither;
  74        struct drm_display_mode *panel_fixed_mode;
  75        struct drm_display_mode *panel_fixed_mode2;
  76        struct drm_display_mode *vbt_mode;      /* if any */
  77
  78        uint32_t saveBLC_PWM_CTL;
  79};
  80
  81struct psb_intel_i2c_chan {
  82        /* for getting at dev. private (mmio etc.) */
  83        struct drm_device *drm_dev;
  84        u32 reg;                /* GPIO reg */
  85        struct i2c_adapter adapter;
  86        struct i2c_algo_bit_data algo;
  87        u8 slave_addr;
  88};
  89
  90struct gma_encoder {
  91        struct drm_encoder base;
  92        int type;
  93        bool needs_tv_clock;
  94        void (*hot_plug)(struct gma_encoder *);
  95        int crtc_mask;
  96        int clone_mask;
  97        u32 ddi_select; /* Channel info */
  98#define DDI0_SELECT     0x01
  99#define DDI1_SELECT     0x02
 100#define DP_MASK         0x8000
 101#define DDI_MASK        0x03
 102        void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 103
 104        /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 105           own set of output privates */
 106        struct psb_intel_i2c_chan *i2c_bus;
 107        struct psb_intel_i2c_chan *ddc_bus;
 108};
 109
 110struct gma_connector {
 111        struct drm_connector base;
 112        struct gma_encoder *encoder;
 113
 114        void (*save)(struct drm_connector *connector);
 115        void (*restore)(struct drm_connector *connector);
 116};
 117
 118struct psb_intel_crtc_state {
 119        uint32_t saveDSPCNTR;
 120        uint32_t savePIPECONF;
 121        uint32_t savePIPESRC;
 122        uint32_t saveDPLL;
 123        uint32_t saveFP0;
 124        uint32_t saveFP1;
 125        uint32_t saveHTOTAL;
 126        uint32_t saveHBLANK;
 127        uint32_t saveHSYNC;
 128        uint32_t saveVTOTAL;
 129        uint32_t saveVBLANK;
 130        uint32_t saveVSYNC;
 131        uint32_t saveDSPSTRIDE;
 132        uint32_t saveDSPSIZE;
 133        uint32_t saveDSPPOS;
 134        uint32_t saveDSPBASE;
 135        uint32_t savePalette[256];
 136};
 137
 138struct gma_crtc {
 139        struct drm_crtc base;
 140        int pipe;
 141        int plane;
 142        uint32_t cursor_addr;
 143        struct gtt_range *cursor_gt;
 144        u8 lut_adj[256];
 145        struct psb_intel_framebuffer *fbdev_fb;
 146        /* a mode_set for fbdev users on this crtc */
 147        struct drm_mode_set mode_set;
 148
 149        /* GEM object that holds our cursor */
 150        struct drm_gem_object *cursor_obj;
 151
 152        struct drm_display_mode saved_mode;
 153        struct drm_display_mode saved_adjusted_mode;
 154
 155        struct psb_intel_mode_device *mode_dev;
 156
 157        /*crtc mode setting flags*/
 158        u32 mode_flags;
 159
 160        bool active;
 161
 162        /* Saved Crtc HW states */
 163        struct psb_intel_crtc_state *crtc_state;
 164
 165        const struct gma_clock_funcs *clock_funcs;
 166
 167        struct drm_pending_vblank_event *page_flip_event;
 168};
 169
 170#define to_gma_crtc(x)  \
 171                container_of(x, struct gma_crtc, base)
 172#define to_gma_connector(x) \
 173                container_of(x, struct gma_connector, base)
 174#define to_gma_encoder(x)       \
 175                container_of(x, struct gma_encoder, base)
 176#define to_psb_intel_framebuffer(x)     \
 177                container_of(x, struct psb_intel_framebuffer, base)
 178
 179struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 180                                        const u32 reg, const char *name);
 181void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 182int psb_intel_ddc_get_modes(struct drm_connector *connector,
 183                            struct i2c_adapter *adapter);
 184extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 185
 186extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 187                            struct psb_intel_mode_device *mode_dev);
 188extern void psb_intel_crt_init(struct drm_device *dev);
 189extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 190extern void psb_intel_dvo_init(struct drm_device *dev);
 191extern void psb_intel_tv_init(struct drm_device *dev);
 192extern void psb_intel_lvds_init(struct drm_device *dev,
 193                            struct psb_intel_mode_device *mode_dev);
 194extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 195extern void oaktrail_lvds_init(struct drm_device *dev,
 196                           struct psb_intel_mode_device *mode_dev);
 197extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 198extern void oaktrail_dsi_init(struct drm_device *dev,
 199                           struct psb_intel_mode_device *mode_dev);
 200extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
 201extern void mid_dsi_init(struct drm_device *dev,
 202                    struct psb_intel_mode_device *mode_dev, int dsi_num);
 203
 204extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
 205extern void gma_connector_attach_encoder(struct gma_connector *connector,
 206                                         struct gma_encoder *encoder);
 207
 208static inline struct gma_encoder *gma_attached_encoder(
 209                                                struct drm_connector *connector)
 210{
 211        return to_gma_connector(connector)->encoder;
 212}
 213
 214extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 215                                                    struct drm_crtc *crtc);
 216extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 217                                                 int pipe);
 218extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 219                                             int sdvoB);
 220extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 221extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 222                                   int enable);
 223extern int intelfb_probe(struct drm_device *dev);
 224extern int intelfb_remove(struct drm_device *dev,
 225                          struct drm_framebuffer *fb);
 226extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 227                                      const struct drm_display_mode *mode,
 228                                      struct drm_display_mode *adjusted_mode);
 229extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 230                                     struct drm_display_mode *mode);
 231extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 232                                        struct drm_property *property,
 233                                        uint64_t value);
 234extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 235
 236/* intel_gmbus.c */
 237extern void gma_intel_i2c_reset(struct drm_device *dev);
 238extern int gma_intel_setup_gmbus(struct drm_device *dev);
 239extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 240extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 241extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 242
 243/* DP support */
 244extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 245extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 246                                        struct drm_display_mode *mode,
 247                                        struct drm_display_mode *adjusted_mode);
 248
 249extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 250extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 251
 252extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 253extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 254extern void cdv_sb_reset(struct drm_device *dev);
 255
 256extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 257extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 258
 259#endif                          /* __INTEL_DRV_H__ */
 260