drivers/gpu/drm/gma500/psb_intel_drv.h

   1 /*
   2  * Copyright (c) 2009-2011, Intel Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with
  14  * this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  16  *
  17  */
  18
  19 #ifndef __INTEL_DRV_H__
  20 #define __INTEL_DRV_H__
  21
  22 #include <linux/i2c.h>
  23 #include <linux/i2c-algo-bit.h>
  24 #include <drm/drm_crtc.h>
  25 #include <drm/drm_crtc_helper.h>
  26 #include <linux/gpio.h>
  27
  28 /*
  29  * Display related stuff
  30  */
  31
  32 /* maximum connectors per crtcs in the mode set */
  33 #define INTELFB_CONN_LIMIT 4
  34
  35 #define INTEL_I2C_BUS_DVO 1
  36 #define INTEL_I2C_BUS_SDVO 2
  37
  38 /* Intel Pipe Clone Bit */
  39 #define INTEL_HDMIB_CLONE_BIT 1
  40 #define INTEL_HDMIC_CLONE_BIT 2
  41 #define INTEL_HDMID_CLONE_BIT 3
  42 #define INTEL_HDMIE_CLONE_BIT 4
  43 #define INTEL_HDMIF_CLONE_BIT 5
  44 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
  45 #define INTEL_SDVO_TV_CLONE_BIT 7
  46 #define INTEL_SDVO_LVDS_CLONE_BIT 8
  47 #define INTEL_ANALOG_CLONE_BIT 9
  48 #define INTEL_TV_CLONE_BIT 10
  49 #define INTEL_DP_B_CLONE_BIT 11
  50 #define INTEL_DP_C_CLONE_BIT 12
  51 #define INTEL_DP_D_CLONE_BIT 13
  52 #define INTEL_LVDS_CLONE_BIT 14
  53 #define INTEL_DVO_TMDS_CLONE_BIT 15
  54 #define INTEL_DVO_LVDS_CLONE_BIT 16
  55 #define INTEL_EDP_CLONE_BIT 17
  56
  57 /* these are outputs from the chip - integrated only
  58  * external chips are via DVO or SDVO output */
  59 #define INTEL_OUTPUT_UNUSED 0
  60 #define INTEL_OUTPUT_ANALOG 1
  61 #define INTEL_OUTPUT_DVO 2
  62 #define INTEL_OUTPUT_SDVO 3
  63 #define INTEL_OUTPUT_LVDS 4
  64 #define INTEL_OUTPUT_TVOUT 5
  65 #define INTEL_OUTPUT_HDMI 6
  66 #define INTEL_OUTPUT_MIPI 7
  67 #define INTEL_OUTPUT_MIPI2 8
  68 #define INTEL_OUTPUT_DISPLAYPORT 9
  69 #define INTEL_OUTPUT_EDP 10
  70
  71 #define INTEL_DVO_CHIP_NONE 0
  72 #define INTEL_DVO_CHIP_LVDS 1
  73 #define INTEL_DVO_CHIP_TMDS 2
  74 #define INTEL_DVO_CHIP_TVOUT 4
  75
  76 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
  77 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
  78
  79 static inline void
  80 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
  81                                 int multiplier)
  82 {
  83         mode->clock *= multiplier;
  84         mode->private_flags |= multiplier;
  85 }
  86
  87 static inline int
  88 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
  89 {
  90         return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
  91                >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
  92 }
  93
  94
  95 /*
  96  * Hold information useally put on the device driver privates here,
  97  * since it needs to be shared across multiple of devices drivers privates.
  98  */
  99 struct psb_intel_mode_device {
 100
 101         /*
 102          * Abstracted memory manager operations
 103          */
 104          size_t(*bo_offset) (struct drm_device *dev, void *bo);
 105
 106         /*
 107          * LVDS info
 108          */
 109         int backlight_duty_cycle;       /* restore backlight to this value */
 110         bool panel_wants_dither;
 111         struct drm_display_mode *panel_fixed_mode;
 112         struct drm_display_mode *panel_fixed_mode2;
 113         struct drm_display_mode *vbt_mode;      /* if any */
 114
 115         uint32_t saveBLC_PWM_CTL;
 116 };
 117
 118 struct psb_intel_i2c_chan {
 119         /* for getting at dev. private (mmio etc.) */
 120         struct drm_device *drm_dev;
 121         u32 reg;                /* GPIO reg */
 122         struct i2c_adapter adapter;
 123         struct i2c_algo_bit_data algo;
 124         u8 slave_addr;
 125 };
 126
 127 struct psb_intel_encoder {
 128         struct drm_encoder base;
 129         int type;
 130         bool needs_tv_clock;
 131         void (*hot_plug)(struct psb_intel_encoder *);
 132         int crtc_mask;
 133         int clone_mask;
 134         u32 ddi_select; /* Channel info */
 135 #define DDI0_SELECT     0x01
 136 #define DDI1_SELECT     0x02
 137 #define DP_MASK         0x8000
 138 #define DDI_MASK        0x03
 139         void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 140
 141         /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 142            own set of output privates */
 143         struct psb_intel_i2c_chan *i2c_bus;
 144         struct psb_intel_i2c_chan *ddc_bus;
 145 };
 146
 147 struct psb_intel_connector {
 148         struct drm_connector base;
 149         struct psb_intel_encoder *encoder;
 150 };
 151
 152 struct psb_intel_crtc_state {
 153         uint32_t saveDSPCNTR;
 154         uint32_t savePIPECONF;
 155         uint32_t savePIPESRC;
 156         uint32_t saveDPLL;
 157         uint32_t saveFP0;
 158         uint32_t saveFP1;
 159         uint32_t saveHTOTAL;
 160         uint32_t saveHBLANK;
 161         uint32_t saveHSYNC;
 162         uint32_t saveVTOTAL;
 163         uint32_t saveVBLANK;
 164         uint32_t saveVSYNC;
 165         uint32_t saveDSPSTRIDE;
 166         uint32_t saveDSPSIZE;
 167         uint32_t saveDSPPOS;
 168         uint32_t saveDSPBASE;
 169         uint32_t savePalette[256];
 170 };
 171
 172 struct psb_intel_crtc {
 173         struct drm_crtc base;
 174         int pipe;
 175         int plane;
 176         uint32_t cursor_addr;
 177         struct gtt_range *cursor_gt;
 178         u8 lut_r[256], lut_g[256], lut_b[256];
 179         u8 lut_adj[256];
 180         struct psb_intel_framebuffer *fbdev_fb;
 181         /* a mode_set for fbdev users on this crtc */
 182         struct drm_mode_set mode_set;
 183
 184         /* GEM object that holds our cursor */
 185         struct drm_gem_object *cursor_obj;
 186
 187         struct drm_display_mode saved_mode;
 188         struct drm_display_mode saved_adjusted_mode;
 189
 190         struct psb_intel_mode_device *mode_dev;
 191
 192         /*crtc mode setting flags*/
 193         u32 mode_flags;
 194
 195         bool active;
 196
 197         /* Saved Crtc HW states */
 198         struct psb_intel_crtc_state *crtc_state;
 199 };
 200
 201 #define to_psb_intel_crtc(x)    \
 202                 container_of(x, struct psb_intel_crtc, base)
 203 #define to_psb_intel_connector(x) \
 204                 container_of(x, struct psb_intel_connector, base)
 205 #define to_psb_intel_encoder(x) \
 206                 container_of(x, struct psb_intel_encoder, base)
 207 #define to_psb_intel_framebuffer(x)     \
 208                 container_of(x, struct psb_intel_framebuffer, base)
 209
 210 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 211                                         const u32 reg, const char *name);
 212 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 213 int psb_intel_ddc_get_modes(struct drm_connector *connector,
 214                             struct i2c_adapter *adapter);
 215 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 216
 217 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 218                             struct psb_intel_mode_device *mode_dev);
 219 extern void psb_intel_crt_init(struct drm_device *dev);
 220 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 221 extern void psb_intel_dvo_init(struct drm_device *dev);
 222 extern void psb_intel_tv_init(struct drm_device *dev);
 223 extern void psb_intel_lvds_init(struct drm_device *dev,
 224                             struct psb_intel_mode_device *mode_dev);
 225 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 226 extern void oaktrail_lvds_init(struct drm_device *dev,
 227                            struct psb_intel_mode_device *mode_dev);
 228 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 229 extern void oaktrail_dsi_init(struct drm_device *dev,
 230                            struct psb_intel_mode_device *mode_dev);
 231 extern void mid_dsi_init(struct drm_device *dev,
 232                     struct psb_intel_mode_device *mode_dev, int dsi_num);
 233
 234 extern void psb_intel_crtc_load_lut(struct drm_crtc *crtc);
 235 extern void psb_intel_encoder_prepare(struct drm_encoder *encoder);
 236 extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
 237 extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
 238
 239 static inline struct psb_intel_encoder *psb_intel_attached_encoder(
 240                                                 struct drm_connector *connector)
 241 {
 242         return to_psb_intel_connector(connector)->encoder;
 243 }
 244
 245 extern void psb_intel_connector_attach_encoder(
 246                                         struct psb_intel_connector *connector,
 247                                         struct psb_intel_encoder *encoder);
 248
 249 extern struct drm_encoder *psb_intel_best_encoder(struct drm_connector
 250                                               *connector);
 251
 252 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 253                                                     struct drm_crtc *crtc);
 254 extern void psb_intel_wait_for_vblank(struct drm_device *dev);
 255 extern int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 256                                 struct drm_file *file_priv);
 257 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 258                                                  int pipe);
 259 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 260                                              int sdvoB);
 261 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 262 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 263                                    int enable);
 264 extern int intelfb_probe(struct drm_device *dev);
 265 extern int intelfb_remove(struct drm_device *dev,
 266                           struct drm_framebuffer *fb);
 267 extern struct drm_framebuffer *psb_intel_framebuffer_create(struct drm_device
 268                                                         *dev, struct
 269                                                         drm_mode_fb_cmd
 270                                                         *mode_cmd,
 271                                                         void *mm_private);
 272 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 273                                       const struct drm_display_mode *mode,
 274                                       struct drm_display_mode *adjusted_mode);
 275 extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
 276                                      struct drm_display_mode *mode);
 277 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 278                                         struct drm_property *property,
 279                                         uint64_t value);
 280 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 281 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 282
 283 /* intel_gmbus.c */
 284 extern void gma_intel_i2c_reset(struct drm_device *dev);
 285 extern int gma_intel_setup_gmbus(struct drm_device *dev);
 286 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 287 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 288 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 289
 290 /* DP support */
 291 extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 292 extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 293                                         struct drm_display_mode *mode,
 294                                         struct drm_display_mode *adjusted_mode);
 295
 296 extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 297 extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 298
 299 extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 300 extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 301 extern void cdv_sb_reset(struct drm_device *dev);
 302
 303 extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 304 extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 305
 306 #endif                          /* __INTEL_DRV_H__ */