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 /* store information about an Ixxx DVO */
  33 /* The i830->i865 use multiple DVOs with multiple i2cs */
  34 /* the i915, i945 have a single sDVO i2c bus - which is different */
  35 #define MAX_OUTPUTS 6
  36 /* maximum connectors per crtcs in the mode set */
  37 #define INTELFB_CONN_LIMIT 4
  38
  39 #define INTEL_I2C_BUS_DVO 1
  40 #define INTEL_I2C_BUS_SDVO 2
  41
  42 /* Intel Pipe Clone Bit */
  43 #define INTEL_HDMIB_CLONE_BIT 1
  44 #define INTEL_HDMIC_CLONE_BIT 2
  45 #define INTEL_HDMID_CLONE_BIT 3
  46 #define INTEL_HDMIE_CLONE_BIT 4
  47 #define INTEL_HDMIF_CLONE_BIT 5
  48 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
  49 #define INTEL_SDVO_TV_CLONE_BIT 7
  50 #define INTEL_SDVO_LVDS_CLONE_BIT 8
  51 #define INTEL_ANALOG_CLONE_BIT 9
  52 #define INTEL_TV_CLONE_BIT 10
  53 #define INTEL_DP_B_CLONE_BIT 11
  54 #define INTEL_DP_C_CLONE_BIT 12
  55 #define INTEL_DP_D_CLONE_BIT 13
  56 #define INTEL_LVDS_CLONE_BIT 14
  57 #define INTEL_DVO_TMDS_CLONE_BIT 15
  58 #define INTEL_DVO_LVDS_CLONE_BIT 16
  59 #define INTEL_EDP_CLONE_BIT 17
  60
  61 /* these are outputs from the chip - integrated only
  62  * external chips are via DVO or SDVO output */
  63 #define INTEL_OUTPUT_UNUSED 0
  64 #define INTEL_OUTPUT_ANALOG 1
  65 #define INTEL_OUTPUT_DVO 2
  66 #define INTEL_OUTPUT_SDVO 3
  67 #define INTEL_OUTPUT_LVDS 4
  68 #define INTEL_OUTPUT_TVOUT 5
  69 #define INTEL_OUTPUT_HDMI 6
  70 #define INTEL_OUTPUT_MIPI 7
  71 #define INTEL_OUTPUT_MIPI2 8
  72
  73 #define INTEL_DVO_CHIP_NONE 0
  74 #define INTEL_DVO_CHIP_LVDS 1
  75 #define INTEL_DVO_CHIP_TMDS 2
  76 #define INTEL_DVO_CHIP_TVOUT 4
  77
  78 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
  79 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
  80
  81 static inline void
  82 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
  83                                 int multiplier)
  84 {
  85         mode->clock *= multiplier;
  86         mode->private_flags |= multiplier;
  87 }
  88
  89 static inline int
  90 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
  91 {
  92         return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
  93                >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
  94 }
  95
  96
  97 /*
  98  * Hold information useally put on the device driver privates here,
  99  * since it needs to be shared across multiple of devices drivers privates.
 100  */
 101 struct psb_intel_mode_device {
 102
 103         /*
 104          * Abstracted memory manager operations
 105          */
 106          size_t(*bo_offset) (struct drm_device *dev, void *bo);
 107
 108         /*
 109          * Cursor (Can go ?)
 110          */
 111         int cursor_needs_physical;
 112
 113         /*
 114          * LVDS info
 115          */
 116         int backlight_duty_cycle;       /* restore backlight to this value */
 117         bool panel_wants_dither;
 118         struct drm_display_mode *panel_fixed_mode;
 119         struct drm_display_mode *panel_fixed_mode2;
 120         struct drm_display_mode *vbt_mode;      /* if any */
 121
 122         uint32_t saveBLC_PWM_CTL;
 123 };
 124
 125 struct psb_intel_i2c_chan {
 126         /* for getting at dev. private (mmio etc.) */
 127         struct drm_device *drm_dev;
 128         u32 reg;                /* GPIO reg */
 129         struct i2c_adapter adapter;
 130         struct i2c_algo_bit_data algo;
 131         u8 slave_addr;
 132 };
 133
 134 struct psb_intel_encoder {
 135         struct drm_encoder base;
 136         int type;
 137         bool needs_tv_clock;
 138         void (*hot_plug)(struct psb_intel_encoder *);
 139         int crtc_mask;
 140         int clone_mask;
 141         void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 142
 143         /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 144            own set of output privates */
 145         struct psb_intel_i2c_chan *i2c_bus;
 146         struct psb_intel_i2c_chan *ddc_bus;
 147 };
 148
 149 struct psb_intel_connector {
 150         struct drm_connector base;
 151         struct psb_intel_encoder *encoder;
 152 };
 153
 154 struct psb_intel_crtc_state {
 155         uint32_t saveDSPCNTR;
 156         uint32_t savePIPECONF;
 157         uint32_t savePIPESRC;
 158         uint32_t saveDPLL;
 159         uint32_t saveFP0;
 160         uint32_t saveFP1;
 161         uint32_t saveHTOTAL;
 162         uint32_t saveHBLANK;
 163         uint32_t saveHSYNC;
 164         uint32_t saveVTOTAL;
 165         uint32_t saveVBLANK;
 166         uint32_t saveVSYNC;
 167         uint32_t saveDSPSTRIDE;
 168         uint32_t saveDSPSIZE;
 169         uint32_t saveDSPPOS;
 170         uint32_t saveDSPBASE;
 171         uint32_t savePalette[256];
 172 };
 173
 174 struct psb_intel_crtc {
 175         struct drm_crtc base;
 176         int pipe;
 177         int plane;
 178         uint32_t cursor_addr;
 179         u8 lut_r[256], lut_g[256], lut_b[256];
 180         u8 lut_adj[256];
 181         struct psb_intel_framebuffer *fbdev_fb;
 182         /* a mode_set for fbdev users on this crtc */
 183         struct drm_mode_set mode_set;
 184
 185         /* GEM object that holds our cursor */
 186         struct drm_gem_object *cursor_obj;
 187
 188         struct drm_display_mode saved_mode;
 189         struct drm_display_mode saved_adjusted_mode;
 190
 191         struct psb_intel_mode_device *mode_dev;
 192
 193         /*crtc mode setting flags*/
 194         u32 mode_flags;
 195
 196         /* Saved Crtc HW states */
 197         struct psb_intel_crtc_state *crtc_state;
 198 };
 199
 200 #define to_psb_intel_crtc(x)    \
 201                 container_of(x, struct psb_intel_crtc, base)
 202 #define to_psb_intel_connector(x) \
 203                 container_of(x, struct psb_intel_connector, base)
 204 #define to_psb_intel_encoder(x) \
 205                 container_of(x, struct psb_intel_encoder, base)
 206 #define to_psb_intel_framebuffer(x)     \
 207                 container_of(x, struct psb_intel_framebuffer, base)
 208
 209 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 210                                         const u32 reg, const char *name);
 211 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 212 int psb_intel_ddc_get_modes(struct drm_connector *connector,
 213                             struct i2c_adapter *adapter);
 214 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 215
 216 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 217                             struct psb_intel_mode_device *mode_dev);
 218 extern void psb_intel_crt_init(struct drm_device *dev);
 219 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 220 extern void psb_intel_dvo_init(struct drm_device *dev);
 221 extern void psb_intel_tv_init(struct drm_device *dev);
 222 extern void psb_intel_lvds_init(struct drm_device *dev,
 223                             struct psb_intel_mode_device *mode_dev);
 224 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 225 extern void oaktrail_lvds_init(struct drm_device *dev,
 226                            struct psb_intel_mode_device *mode_dev);
 227 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 228 extern void oaktrail_dsi_init(struct drm_device *dev,
 229                            struct psb_intel_mode_device *mode_dev);
 230 extern void mid_dsi_init(struct drm_device *dev,
 231                     struct psb_intel_mode_device *mode_dev, int dsi_num);
 232
 233 extern void psb_intel_crtc_load_lut(struct drm_crtc *crtc);
 234 extern void psb_intel_encoder_prepare(struct drm_encoder *encoder);
 235 extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
 236 extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
 237
 238 static inline struct psb_intel_encoder *psb_intel_attached_encoder(
 239                                                 struct drm_connector *connector)
 240 {
 241         return to_psb_intel_connector(connector)->encoder;
 242 }
 243
 244 extern void psb_intel_connector_attach_encoder(
 245                                         struct psb_intel_connector *connector,
 246                                         struct psb_intel_encoder *encoder);
 247
 248 extern struct drm_encoder *psb_intel_best_encoder(struct drm_connector
 249                                               *connector);
 250
 251 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 252                                                     struct drm_crtc *crtc);
 253 extern void psb_intel_wait_for_vblank(struct drm_device *dev);
 254 extern int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 255                                 struct drm_file *file_priv);
 256 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 257                                                  int pipe);
 258 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 259                                              int sdvoB);
 260 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 261 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 262                                    int enable);
 263 extern int intelfb_probe(struct drm_device *dev);
 264 extern int intelfb_remove(struct drm_device *dev,
 265                           struct drm_framebuffer *fb);
 266 extern struct drm_framebuffer *psb_intel_framebuffer_create(struct drm_device
 267                                                         *dev, struct
 268                                                         drm_mode_fb_cmd
 269                                                         *mode_cmd,
 270                                                         void *mm_private);
 271 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 272                                       struct drm_display_mode *mode,
 273                                       struct drm_display_mode *adjusted_mode);
 274 extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
 275                                      struct drm_display_mode *mode);
 276 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 277                                         struct drm_property *property,
 278                                         uint64_t value);
 279 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 280 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 281
 282 /* intel_gmbus.c */
 283 extern void gma_intel_i2c_reset(struct drm_device *dev);
 284 extern int gma_intel_setup_gmbus(struct drm_device *dev);
 285 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 286 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 287 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 288
 289 #endif                          /* __INTEL_DRV_H__ */