drivers/gpu/drm/gma500/psb_intel_drv.h

   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 <linux/gpio.h>
  17 #include "gma_display.h"
  18
  19 /*
  20  * Display related stuff
  21  */
  22
  23 /* maximum connectors per crtcs in the mode set */
  24 #define INTELFB_CONN_LIMIT 4
  25
  26 /* Intel Pipe Clone Bit */
  27 #define INTEL_HDMIB_CLONE_BIT 1
  28 #define INTEL_HDMIC_CLONE_BIT 2
  29 #define INTEL_HDMID_CLONE_BIT 3
  30 #define INTEL_HDMIE_CLONE_BIT 4
  31 #define INTEL_HDMIF_CLONE_BIT 5
  32 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
  33 #define INTEL_SDVO_TV_CLONE_BIT 7
  34 #define INTEL_SDVO_LVDS_CLONE_BIT 8
  35 #define INTEL_ANALOG_CLONE_BIT 9
  36 #define INTEL_TV_CLONE_BIT 10
  37 #define INTEL_DP_B_CLONE_BIT 11
  38 #define INTEL_DP_C_CLONE_BIT 12
  39 #define INTEL_DP_D_CLONE_BIT 13
  40 #define INTEL_LVDS_CLONE_BIT 14
  41 #define INTEL_DVO_TMDS_CLONE_BIT 15
  42 #define INTEL_DVO_LVDS_CLONE_BIT 16
  43 #define INTEL_EDP_CLONE_BIT 17
  44
  45 /* these are outputs from the chip - integrated only
  46  * external chips are via DVO or SDVO output */
  47 #define INTEL_OUTPUT_UNUSED 0
  48 #define INTEL_OUTPUT_ANALOG 1
  49 #define INTEL_OUTPUT_DVO 2
  50 #define INTEL_OUTPUT_SDVO 3
  51 #define INTEL_OUTPUT_LVDS 4
  52 #define INTEL_OUTPUT_TVOUT 5
  53 #define INTEL_OUTPUT_HDMI 6
  54 #define INTEL_OUTPUT_MIPI 7
  55 #define INTEL_OUTPUT_MIPI2 8
  56 #define INTEL_OUTPUT_DISPLAYPORT 9
  57 #define INTEL_OUTPUT_EDP 10
  58
  59 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
  60 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
  61
  62 static inline void
  63 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
  64                                 int multiplier)
  65 {
  66         mode->clock *= multiplier;
  67         mode->private_flags |= multiplier;
  68 }
  69
  70 static inline int
  71 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
  72 {
  73         return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
  74                >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
  75 }
  76
  77
  78 /*
  79  * Hold information useally put on the device driver privates here,
  80  * since it needs to be shared across multiple of devices drivers privates.
  81  */
  82 struct psb_intel_mode_device {
  83
  84         /*
  85          * Abstracted memory manager operations
  86          */
  87          size_t(*bo_offset) (struct drm_device *dev, void *bo);
  88
  89         /*
  90          * LVDS info
  91          */
  92         int backlight_duty_cycle;       /* restore backlight to this value */
  93         bool panel_wants_dither;
  94         struct drm_display_mode *panel_fixed_mode;
  95         struct drm_display_mode *panel_fixed_mode2;
  96         struct drm_display_mode *vbt_mode;      /* if any */
  97
  98         uint32_t saveBLC_PWM_CTL;
  99 };
 100
 101 struct psb_intel_i2c_chan {
 102         /* for getting at dev. private (mmio etc.) */
 103         struct drm_device *drm_dev;
 104         u32 reg;                /* GPIO reg */
 105         struct i2c_adapter adapter;
 106         struct i2c_algo_bit_data algo;
 107         u8 slave_addr;
 108 };
 109
 110 struct gma_encoder {
 111         struct drm_encoder base;
 112         int type;
 113         bool needs_tv_clock;
 114         void (*hot_plug)(struct gma_encoder *);
 115         int crtc_mask;
 116         int clone_mask;
 117         u32 ddi_select; /* Channel info */
 118 #define DDI0_SELECT     0x01
 119 #define DDI1_SELECT     0x02
 120 #define DP_MASK         0x8000
 121 #define DDI_MASK        0x03
 122         void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 123
 124         /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 125            own set of output privates */
 126         struct psb_intel_i2c_chan *i2c_bus;
 127         struct psb_intel_i2c_chan *ddc_bus;
 128 };
 129
 130 struct gma_connector {
 131         struct drm_connector base;
 132         struct gma_encoder *encoder;
 133
 134         void (*save)(struct drm_connector *connector);
 135         void (*restore)(struct drm_connector *connector);
 136 };
 137
 138 struct psb_intel_crtc_state {
 139         uint32_t saveDSPCNTR;
 140         uint32_t savePIPECONF;
 141         uint32_t savePIPESRC;
 142         uint32_t saveDPLL;
 143         uint32_t saveFP0;
 144         uint32_t saveFP1;
 145         uint32_t saveHTOTAL;
 146         uint32_t saveHBLANK;
 147         uint32_t saveHSYNC;
 148         uint32_t saveVTOTAL;
 149         uint32_t saveVBLANK;
 150         uint32_t saveVSYNC;
 151         uint32_t saveDSPSTRIDE;
 152         uint32_t saveDSPSIZE;
 153         uint32_t saveDSPPOS;
 154         uint32_t saveDSPBASE;
 155         uint32_t savePalette[256];
 156 };
 157
 158 struct gma_crtc {
 159         struct drm_crtc base;
 160         int pipe;
 161         int plane;
 162         uint32_t cursor_addr;
 163         struct gtt_range *cursor_gt;
 164         u8 lut_adj[256];
 165         struct psb_intel_framebuffer *fbdev_fb;
 166         /* a mode_set for fbdev users on this crtc */
 167         struct drm_mode_set mode_set;
 168
 169         /* GEM object that holds our cursor */
 170         struct drm_gem_object *cursor_obj;
 171
 172         struct drm_display_mode saved_mode;
 173         struct drm_display_mode saved_adjusted_mode;
 174
 175         struct psb_intel_mode_device *mode_dev;
 176
 177         /*crtc mode setting flags*/
 178         u32 mode_flags;
 179
 180         bool active;
 181
 182         /* Saved Crtc HW states */
 183         struct psb_intel_crtc_state *crtc_state;
 184
 185         const struct gma_clock_funcs *clock_funcs;
 186
 187         struct drm_pending_vblank_event *page_flip_event;
 188 };
 189
 190 #define to_gma_crtc(x)  \
 191                 container_of(x, struct gma_crtc, base)
 192 #define to_gma_connector(x) \
 193                 container_of(x, struct gma_connector, base)
 194 #define to_gma_encoder(x)       \
 195                 container_of(x, struct gma_encoder, base)
 196 #define to_psb_intel_framebuffer(x)     \
 197                 container_of(x, struct psb_intel_framebuffer, base)
 198
 199 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 200                                         const u32 reg, const char *name);
 201 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 202 int psb_intel_ddc_get_modes(struct drm_connector *connector,
 203                             struct i2c_adapter *adapter);
 204 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 205
 206 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 207                             struct psb_intel_mode_device *mode_dev);
 208 extern void psb_intel_crt_init(struct drm_device *dev);
 209 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 210 extern void psb_intel_dvo_init(struct drm_device *dev);
 211 extern void psb_intel_tv_init(struct drm_device *dev);
 212 extern void psb_intel_lvds_init(struct drm_device *dev,
 213                             struct psb_intel_mode_device *mode_dev);
 214 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 215 extern void oaktrail_lvds_init(struct drm_device *dev,
 216                            struct psb_intel_mode_device *mode_dev);
 217 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 218 extern void oaktrail_dsi_init(struct drm_device *dev,
 219                            struct psb_intel_mode_device *mode_dev);
 220 extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
 221 extern void mid_dsi_init(struct drm_device *dev,
 222                     struct psb_intel_mode_device *mode_dev, int dsi_num);
 223
 224 extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
 225 extern void gma_connector_attach_encoder(struct gma_connector *connector,
 226                                          struct gma_encoder *encoder);
 227
 228 static inline struct gma_encoder *gma_attached_encoder(
 229                                                 struct drm_connector *connector)
 230 {
 231         return to_gma_connector(connector)->encoder;
 232 }
 233
 234 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 235                                                     struct drm_crtc *crtc);
 236 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 237                                                  int pipe);
 238 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 239                                              int sdvoB);
 240 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 241 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 242                                    int enable);
 243 extern int intelfb_probe(struct drm_device *dev);
 244 extern int intelfb_remove(struct drm_device *dev,
 245                           struct drm_framebuffer *fb);
 246 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 247                                       const struct drm_display_mode *mode,
 248                                       struct drm_display_mode *adjusted_mode);
 249 extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 250                                      struct drm_display_mode *mode);
 251 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 252                                         struct drm_property *property,
 253                                         uint64_t value);
 254 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 255 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 256
 257 /* intel_gmbus.c */
 258 extern void gma_intel_i2c_reset(struct drm_device *dev);
 259 extern int gma_intel_setup_gmbus(struct drm_device *dev);
 260 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 261 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 262 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 263
 264 /* DP support */
 265 extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 266 extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 267                                         struct drm_display_mode *mode,
 268                                         struct drm_display_mode *adjusted_mode);
 269
 270 extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 271 extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 272
 273 extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 274 extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 275 extern void cdv_sb_reset(struct drm_device *dev);
 276
 277 extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 278 extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 279
 280 #endif                          /* __INTEL_DRV_H__ */