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 #include "gma_display.h"
  28
  29 /*
  30  * Display related stuff
  31  */
  32
  33 /* maximum connectors per crtcs in the mode set */
  34 #define INTELFB_CONN_LIMIT 4
  35
  36 /* Intel Pipe Clone Bit */
  37 #define INTEL_HDMIB_CLONE_BIT 1
  38 #define INTEL_HDMIC_CLONE_BIT 2
  39 #define INTEL_HDMID_CLONE_BIT 3
  40 #define INTEL_HDMIE_CLONE_BIT 4
  41 #define INTEL_HDMIF_CLONE_BIT 5
  42 #define INTEL_SDVO_NON_TV_CLONE_BIT 6
  43 #define INTEL_SDVO_TV_CLONE_BIT 7
  44 #define INTEL_SDVO_LVDS_CLONE_BIT 8
  45 #define INTEL_ANALOG_CLONE_BIT 9
  46 #define INTEL_TV_CLONE_BIT 10
  47 #define INTEL_DP_B_CLONE_BIT 11
  48 #define INTEL_DP_C_CLONE_BIT 12
  49 #define INTEL_DP_D_CLONE_BIT 13
  50 #define INTEL_LVDS_CLONE_BIT 14
  51 #define INTEL_DVO_TMDS_CLONE_BIT 15
  52 #define INTEL_DVO_LVDS_CLONE_BIT 16
  53 #define INTEL_EDP_CLONE_BIT 17
  54
  55 /* these are outputs from the chip - integrated only
  56  * external chips are via DVO or SDVO output */
  57 #define INTEL_OUTPUT_UNUSED 0
  58 #define INTEL_OUTPUT_ANALOG 1
  59 #define INTEL_OUTPUT_DVO 2
  60 #define INTEL_OUTPUT_SDVO 3
  61 #define INTEL_OUTPUT_LVDS 4
  62 #define INTEL_OUTPUT_TVOUT 5
  63 #define INTEL_OUTPUT_HDMI 6
  64 #define INTEL_OUTPUT_MIPI 7
  65 #define INTEL_OUTPUT_MIPI2 8
  66 #define INTEL_OUTPUT_DISPLAYPORT 9
  67 #define INTEL_OUTPUT_EDP 10
  68
  69 #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
  70 #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
  71
  72 static inline void
  73 psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
  74                                 int multiplier)
  75 {
  76         mode->clock *= multiplier;
  77         mode->private_flags |= multiplier;
  78 }
  79
  80 static inline int
  81 psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
  82 {
  83         return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
  84                >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
  85 }
  86
  87
  88 /*
  89  * Hold information useally put on the device driver privates here,
  90  * since it needs to be shared across multiple of devices drivers privates.
  91  */
  92 struct psb_intel_mode_device {
  93
  94         /*
  95          * Abstracted memory manager operations
  96          */
  97          size_t(*bo_offset) (struct drm_device *dev, void *bo);
  98
  99         /*
 100          * LVDS info
 101          */
 102         int backlight_duty_cycle;       /* restore backlight to this value */
 103         bool panel_wants_dither;
 104         struct drm_display_mode *panel_fixed_mode;
 105         struct drm_display_mode *panel_fixed_mode2;
 106         struct drm_display_mode *vbt_mode;      /* if any */
 107
 108         uint32_t saveBLC_PWM_CTL;
 109 };
 110
 111 struct psb_intel_i2c_chan {
 112         /* for getting at dev. private (mmio etc.) */
 113         struct drm_device *drm_dev;
 114         u32 reg;                /* GPIO reg */
 115         struct i2c_adapter adapter;
 116         struct i2c_algo_bit_data algo;
 117         u8 slave_addr;
 118 };
 119
 120 struct gma_encoder {
 121         struct drm_encoder base;
 122         int type;
 123         bool needs_tv_clock;
 124         void (*hot_plug)(struct gma_encoder *);
 125         int crtc_mask;
 126         int clone_mask;
 127         u32 ddi_select; /* Channel info */
 128 #define DDI0_SELECT     0x01
 129 #define DDI1_SELECT     0x02
 130 #define DP_MASK         0x8000
 131 #define DDI_MASK        0x03
 132         void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 133
 134         /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 135            own set of output privates */
 136         struct psb_intel_i2c_chan *i2c_bus;
 137         struct psb_intel_i2c_chan *ddc_bus;
 138 };
 139
 140 struct gma_connector {
 141         struct drm_connector base;
 142         struct gma_encoder *encoder;
 143
 144         void (*save)(struct drm_connector *connector);
 145         void (*restore)(struct drm_connector *connector);
 146 };
 147
 148 struct psb_intel_crtc_state {
 149         uint32_t saveDSPCNTR;
 150         uint32_t savePIPECONF;
 151         uint32_t savePIPESRC;
 152         uint32_t saveDPLL;
 153         uint32_t saveFP0;
 154         uint32_t saveFP1;
 155         uint32_t saveHTOTAL;
 156         uint32_t saveHBLANK;
 157         uint32_t saveHSYNC;
 158         uint32_t saveVTOTAL;
 159         uint32_t saveVBLANK;
 160         uint32_t saveVSYNC;
 161         uint32_t saveDSPSTRIDE;
 162         uint32_t saveDSPSIZE;
 163         uint32_t saveDSPPOS;
 164         uint32_t saveDSPBASE;
 165         uint32_t savePalette[256];
 166 };
 167
 168 struct gma_crtc {
 169         struct drm_crtc base;
 170         int pipe;
 171         int plane;
 172         uint32_t cursor_addr;
 173         struct gtt_range *cursor_gt;
 174         u8 lut_r[256], lut_g[256], lut_b[256];
 175         u8 lut_adj[256];
 176         struct psb_intel_framebuffer *fbdev_fb;
 177         /* a mode_set for fbdev users on this crtc */
 178         struct drm_mode_set mode_set;
 179
 180         /* GEM object that holds our cursor */
 181         struct drm_gem_object *cursor_obj;
 182
 183         struct drm_display_mode saved_mode;
 184         struct drm_display_mode saved_adjusted_mode;
 185
 186         struct psb_intel_mode_device *mode_dev;
 187
 188         /*crtc mode setting flags*/
 189         u32 mode_flags;
 190
 191         bool active;
 192
 193         /* Saved Crtc HW states */
 194         struct psb_intel_crtc_state *crtc_state;
 195
 196         const struct gma_clock_funcs *clock_funcs;
 197 };
 198
 199 #define to_gma_crtc(x)  \
 200                 container_of(x, struct gma_crtc, base)
 201 #define to_gma_connector(x) \
 202                 container_of(x, struct gma_connector, base)
 203 #define to_gma_encoder(x)       \
 204                 container_of(x, struct gma_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 oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
 230 extern void mid_dsi_init(struct drm_device *dev,
 231                     struct psb_intel_mode_device *mode_dev, int dsi_num);
 232
 233 extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
 234 extern void gma_connector_attach_encoder(struct gma_connector *connector,
 235                                          struct gma_encoder *encoder);
 236
 237 static inline struct gma_encoder *gma_attached_encoder(
 238                                                 struct drm_connector *connector)
 239 {
 240         return to_gma_connector(connector)->encoder;
 241 }
 242
 243 extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 244                                                     struct drm_crtc *crtc);
 245 extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 246                                                  int pipe);
 247 extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 248                                              int sdvoB);
 249 extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 250 extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 251                                    int enable);
 252 extern int intelfb_probe(struct drm_device *dev);
 253 extern int intelfb_remove(struct drm_device *dev,
 254                           struct drm_framebuffer *fb);
 255 extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 256                                       const struct drm_display_mode *mode,
 257                                       struct drm_display_mode *adjusted_mode);
 258 extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
 259                                      struct drm_display_mode *mode);
 260 extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 261                                         struct drm_property *property,
 262                                         uint64_t value);
 263 extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 264 extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 265
 266 /* intel_gmbus.c */
 267 extern void gma_intel_i2c_reset(struct drm_device *dev);
 268 extern int gma_intel_setup_gmbus(struct drm_device *dev);
 269 extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 270 extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 271 extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 272
 273 /* DP support */
 274 extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 275 extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 276                                         struct drm_display_mode *mode,
 277                                         struct drm_display_mode *adjusted_mode);
 278
 279 extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 280 extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 281
 282 extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 283 extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 284 extern void cdv_sb_reset(struct drm_device *dev);
 285
 286 extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 287 extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 288
 289 #endif                          /* __INTEL_DRV_H__ */