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          * LVDS info
 110          */
 111         int backlight_duty_cycle;       /* restore backlight to this value */
 112         bool panel_wants_dither;
 113         struct drm_display_mode *panel_fixed_mode;
 114         struct drm_display_mode *panel_fixed_mode2;
 115         struct drm_display_mode *vbt_mode;      /* if any */
 116
 117         uint32_t saveBLC_PWM_CTL;
 118 };
 119
 120 struct psb_intel_i2c_chan {
 121         /* for getting at dev. private (mmio etc.) */
 122         struct drm_device *drm_dev;
 123         u32 reg;                /* GPIO reg */
 124         struct i2c_adapter adapter;
 125         struct i2c_algo_bit_data algo;
 126         u8 slave_addr;
 127 };
 128
 129 struct psb_intel_encoder {
 130         struct drm_encoder base;
 131         int type;
 132         bool needs_tv_clock;
 133         void (*hot_plug)(struct psb_intel_encoder *);
 134         int crtc_mask;
 135         int clone_mask;
 136         void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 137
 138         /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 139            own set of output privates */
 140         struct psb_intel_i2c_chan *i2c_bus;
 141         struct psb_intel_i2c_chan *ddc_bus;
 142 };
 143
 144 struct psb_intel_connector {
 145         struct drm_connector base;
 146         struct psb_intel_encoder *encoder;
 147 };
 148
 149 struct psb_intel_crtc_state {
 150         uint32_t saveDSPCNTR;
 151         uint32_t savePIPECONF;
 152         uint32_t savePIPESRC;
 153         uint32_t saveDPLL;
 154         uint32_t saveFP0;
 155         uint32_t saveFP1;
 156         uint32_t saveHTOTAL;
 157         uint32_t saveHBLANK;
 158         uint32_t saveHSYNC;
 159         uint32_t saveVTOTAL;
 160         uint32_t saveVBLANK;
 161         uint32_t saveVSYNC;
 162         uint32_t saveDSPSTRIDE;
 163         uint32_t saveDSPSIZE;
 164         uint32_t saveDSPPOS;
 165         uint32_t saveDSPBASE;
 166         uint32_t savePalette[256];
 167 };
 168
 169 struct psb_intel_crtc {
 170         struct drm_crtc base;
 171         int pipe;
 172         int plane;
 173         uint32_t cursor_addr;
 174         struct gtt_range *cursor_gt;
 175         u8 lut_r[256], lut_g[256], lut_b[256];
 176         u8 lut_adj[256];
 177         struct psb_intel_framebuffer *fbdev_fb;
 178         /* a mode_set for fbdev users on this crtc */
 179         struct drm_mode_set mode_set;
 180
 181         /* GEM object that holds our cursor */
 182         struct drm_gem_object *cursor_obj;
 183
 184         struct drm_display_mode saved_mode;
 185         struct drm_display_mode saved_adjusted_mode;
 186
 187         struct psb_intel_mode_device *mode_dev;
 188
 189         /*crtc mode setting flags*/
 190         u32 mode_flags;
 191
 192         bool active;
 193         bool crtc_enable;
 194
 195         /* Saved Crtc HW states */
 196         struct psb_intel_crtc_state *crtc_state;
 197 };
 198
 199 #define to_psb_intel_crtc(x)    \
 200                 container_of(x, struct psb_intel_crtc, base)
 201 #define to_psb_intel_connector(x) \
 202                 container_of(x, struct psb_intel_connector, base)
 203 #define to_psb_intel_encoder(x) \
 204                 container_of(x, struct psb_intel_encoder, base)
 205 #define to_psb_intel_framebuffer(x)     \
 206                 container_of(x, struct psb_intel_framebuffer, base)
 207
 208 struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 209                                         const u32 reg, const char *name);
 210 void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 211 int psb_intel_ddc_get_modes(struct drm_connector *connector,
 212                             struct i2c_adapter *adapter);
 213 extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 214
 215 extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 216                             struct psb_intel_mode_device *mode_dev);
 217 extern void psb_intel_crt_init(struct drm_device *dev);
 218 extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 219 extern void psb_intel_dvo_init(struct drm_device *dev);
 220 extern void psb_intel_tv_init(struct drm_device *dev);
 221 extern void psb_intel_lvds_init(struct drm_device *dev,
 222                             struct psb_intel_mode_device *mode_dev);
 223 extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 224 extern void oaktrail_lvds_init(struct drm_device *dev,
 225                            struct psb_intel_mode_device *mode_dev);
 226 extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 227 extern void oaktrail_dsi_init(struct drm_device *dev,
 228                            struct psb_intel_mode_device *mode_dev);
 229 extern void mid_dsi_init(struct drm_device *dev,
 230                     struct psb_intel_mode_device *mode_dev, int dsi_num);
 231
 232 extern void psb_intel_crtc_load_lut(struct drm_crtc *crtc);
 233 extern void psb_intel_encoder_prepare(struct drm_encoder *encoder);
 234 extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
 235 extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
 236
 237 static inline struct psb_intel_encoder *psb_intel_attached_encoder(
 238                                                 struct drm_connector *connector)
 239 {
 240         return to_psb_intel_connector(connector)->encoder;
 241 }
 242
 243 extern void psb_intel_connector_attach_encoder(
 244                                         struct psb_intel_connector *connector,
 245                                         struct psb_intel_encoder *encoder);
 246
 247 extern struct drm_encoder *psb_intel_best_encoder(struct drm_connector
 248                                               *connector);
 249
 250 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 251                                                     struct drm_crtc *crtc);
 252 extern void psb_intel_wait_for_vblank(struct drm_device *dev);
 253 extern int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 254                                 struct drm_file *file_priv);
 255 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 256                                                  int pipe);
 257 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 258                                              int sdvoB);
 259 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 260 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 261                                    int enable);
 262 extern int intelfb_probe(struct drm_device *dev);
 263 extern int intelfb_remove(struct drm_device *dev,
 264                           struct drm_framebuffer *fb);
 265 extern struct drm_framebuffer *psb_intel_framebuffer_create(struct drm_device
 266                                                         *dev, struct
 267                                                         drm_mode_fb_cmd
 268                                                         *mode_cmd,
 269                                                         void *mm_private);
 270 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 271                                       struct drm_display_mode *mode,
 272                                       struct drm_display_mode *adjusted_mode);
 273 extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
 274                                      struct drm_display_mode *mode);
 275 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 276                                         struct drm_property *property,
 277                                         uint64_t value);
 278 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 279 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 280
 281 /* intel_gmbus.c */
 282 extern void gma_intel_i2c_reset(struct drm_device *dev);
 283 extern int gma_intel_setup_gmbus(struct drm_device *dev);
 284 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 285 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 286 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 287
 288 #endif                          /* __INTEL_DRV_H__ */