LXR linux/drivers/gpu/drm/gma500/psb_intel

   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
  72static inline void
  73psb_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
  80static inline int
  81psb_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 */
  92struct 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
 111struct 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
 120struct 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
 140struct gma_connector {
 141        struct drm_connector base;
 142        struct gma_encoder *encoder;
 143};
 144
 145struct psb_intel_crtc_state {
 146        uint32_t saveDSPCNTR;
 147        uint32_t savePIPECONF;
 148        uint32_t savePIPESRC;
 149        uint32_t saveDPLL;
 150        uint32_t saveFP0;
 151        uint32_t saveFP1;
 152        uint32_t saveHTOTAL;
 153        uint32_t saveHBLANK;
 154        uint32_t saveHSYNC;
 155        uint32_t saveVTOTAL;
 156        uint32_t saveVBLANK;
 157        uint32_t saveVSYNC;
 158        uint32_t saveDSPSTRIDE;
 159        uint32_t saveDSPSIZE;
 160        uint32_t saveDSPPOS;
 161        uint32_t saveDSPBASE;
 162        uint32_t savePalette[256];
 163};
 164
 165struct gma_crtc {
 166        struct drm_crtc base;
 167        int pipe;
 168        int plane;
 169        uint32_t cursor_addr;
 170        struct gtt_range *cursor_gt;
 171        u8 lut_r[256], lut_g[256], lut_b[256];
 172        u8 lut_adj[256];
 173        struct psb_intel_framebuffer *fbdev_fb;
 174        /* a mode_set for fbdev users on this crtc */
 175        struct drm_mode_set mode_set;
 176
 177        /* GEM object that holds our cursor */
 178        struct drm_gem_object *cursor_obj;
 179
 180        struct drm_display_mode saved_mode;
 181        struct drm_display_mode saved_adjusted_mode;
 182
 183        struct psb_intel_mode_device *mode_dev;
 184
 185        /*crtc mode setting flags*/
 186        u32 mode_flags;
 187
 188        bool active;
 189
 190        /* Saved Crtc HW states */
 191        struct psb_intel_crtc_state *crtc_state;
 192
 193        const struct gma_clock_funcs *clock_funcs;
 194};
 195
 196#define to_gma_crtc(x)  \
 197                container_of(x, struct gma_crtc, base)
 198#define to_gma_connector(x) \
 199                container_of(x, struct gma_connector, base)
 200#define to_gma_encoder(x)       \
 201                container_of(x, struct gma_encoder, base)
 202#define to_psb_intel_framebuffer(x)     \
 203                container_of(x, struct psb_intel_framebuffer, base)
 204
 205struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 206                                        const u32 reg, const char *name);
 207void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 208int psb_intel_ddc_get_modes(struct drm_connector *connector,
 209                            struct i2c_adapter *adapter);
 210extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 211
 212extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 213                            struct psb_intel_mode_device *mode_dev);
 214extern void psb_intel_crt_init(struct drm_device *dev);
 215extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 216extern void psb_intel_dvo_init(struct drm_device *dev);
 217extern void psb_intel_tv_init(struct drm_device *dev);
 218extern void psb_intel_lvds_init(struct drm_device *dev,
 219                            struct psb_intel_mode_device *mode_dev);
 220extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 221extern void oaktrail_lvds_init(struct drm_device *dev,
 222                           struct psb_intel_mode_device *mode_dev);
 223extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 224extern void oaktrail_dsi_init(struct drm_device *dev,
 225                           struct psb_intel_mode_device *mode_dev);
 226extern void mid_dsi_init(struct drm_device *dev,
 227                    struct psb_intel_mode_device *mode_dev, int dsi_num);
 228
 229extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
 230extern void gma_connector_attach_encoder(struct gma_connector *connector,
 231                                         struct gma_encoder *encoder);
 232
 233static inline struct gma_encoder *gma_attached_encoder(
 234                                                struct drm_connector *connector)
 235{
 236        return to_gma_connector(connector)->encoder;
 237}
 238
 239extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 240                                                    struct drm_crtc *crtc);
 241extern int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 242                                struct drm_file *file_priv);
 243extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 244                                                 int pipe);
 245extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 246                                             int sdvoB);
 247extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 248extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 249                                   int enable);
 250extern int intelfb_probe(struct drm_device *dev);
 251extern int intelfb_remove(struct drm_device *dev,
 252                          struct drm_framebuffer *fb);
 253extern struct drm_framebuffer *psb_intel_framebuffer_create(struct drm_device
 254                                                        *dev, struct
 255                                                        drm_mode_fb_cmd
 256                                                        *mode_cmd,
 257                                                        void *mm_private);
 258extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 259                                      const struct drm_display_mode *mode,
 260                                      struct drm_display_mode *adjusted_mode);
 261extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
 262                                     struct drm_display_mode *mode);
 263extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 264                                        struct drm_property *property,
 265                                        uint64_t value);
 266extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 267extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 268
 269/* intel_gmbus.c */
 270extern void gma_intel_i2c_reset(struct drm_device *dev);
 271extern int gma_intel_setup_gmbus(struct drm_device *dev);
 272extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 273extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 274extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 275
 276/* DP support */
 277extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 278extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 279                                        struct drm_display_mode *mode,
 280                                        struct drm_display_mode *adjusted_mode);
 281
 282extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 283extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 284
 285extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 286extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 287extern void cdv_sb_reset(struct drm_device *dev);
 288
 289extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 290extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 291
 292#endif                          /* __INTEL_DRV_H__ */
 293