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 <drm/drm_encoder.h>
  27#include <drm/drm_probe_helper.h>
  28#include <linux/gpio.h>
  29#include "gma_display.h"
  30
  31/*
  32 * Display related stuff
  33 */
  34
  35/* maximum connectors per crtcs in the mode set */
  36#define INTELFB_CONN_LIMIT 4
  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_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
  72#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
  73
  74static inline void
  75psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
  76                                int multiplier)
  77{
  78        mode->clock *= multiplier;
  79        mode->private_flags |= multiplier;
  80}
  81
  82static inline int
  83psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
  84{
  85        return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
  86               >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
  87}
  88
  89
  90/*
  91 * Hold information useally put on the device driver privates here,
  92 * since it needs to be shared across multiple of devices drivers privates.
  93 */
  94struct psb_intel_mode_device {
  95
  96        /*
  97         * Abstracted memory manager operations
  98         */
  99         size_t(*bo_offset) (struct drm_device *dev, void *bo);
 100
 101        /*
 102         * LVDS info
 103         */
 104        int backlight_duty_cycle;       /* restore backlight to this value */
 105        bool panel_wants_dither;
 106        struct drm_display_mode *panel_fixed_mode;
 107        struct drm_display_mode *panel_fixed_mode2;
 108        struct drm_display_mode *vbt_mode;      /* if any */
 109
 110        uint32_t saveBLC_PWM_CTL;
 111};
 112
 113struct psb_intel_i2c_chan {
 114        /* for getting at dev. private (mmio etc.) */
 115        struct drm_device *drm_dev;
 116        u32 reg;                /* GPIO reg */
 117        struct i2c_adapter adapter;
 118        struct i2c_algo_bit_data algo;
 119        u8 slave_addr;
 120};
 121
 122struct gma_encoder {
 123        struct drm_encoder base;
 124        int type;
 125        bool needs_tv_clock;
 126        void (*hot_plug)(struct gma_encoder *);
 127        int crtc_mask;
 128        int clone_mask;
 129        u32 ddi_select; /* Channel info */
 130#define DDI0_SELECT     0x01
 131#define DDI1_SELECT     0x02
 132#define DP_MASK         0x8000
 133#define DDI_MASK        0x03
 134        void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 135
 136        /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 137           own set of output privates */
 138        struct psb_intel_i2c_chan *i2c_bus;
 139        struct psb_intel_i2c_chan *ddc_bus;
 140};
 141
 142struct gma_connector {
 143        struct drm_connector base;
 144        struct gma_encoder *encoder;
 145
 146        void (*save)(struct drm_connector *connector);
 147        void (*restore)(struct drm_connector *connector);
 148};
 149
 150struct psb_intel_crtc_state {
 151        uint32_t saveDSPCNTR;
 152        uint32_t savePIPECONF;
 153        uint32_t savePIPESRC;
 154        uint32_t saveDPLL;
 155        uint32_t saveFP0;
 156        uint32_t saveFP1;
 157        uint32_t saveHTOTAL;
 158        uint32_t saveHBLANK;
 159        uint32_t saveHSYNC;
 160        uint32_t saveVTOTAL;
 161        uint32_t saveVBLANK;
 162        uint32_t saveVSYNC;
 163        uint32_t saveDSPSTRIDE;
 164        uint32_t saveDSPSIZE;
 165        uint32_t saveDSPPOS;
 166        uint32_t saveDSPBASE;
 167        uint32_t savePalette[256];
 168};
 169
 170struct gma_crtc {
 171        struct drm_crtc base;
 172        int pipe;
 173        int plane;
 174        uint32_t cursor_addr;
 175        struct gtt_range *cursor_gt;
 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
 194        /* Saved Crtc HW states */
 195        struct psb_intel_crtc_state *crtc_state;
 196
 197        const struct gma_clock_funcs *clock_funcs;
 198};
 199
 200#define to_gma_crtc(x)  \
 201                container_of(x, struct gma_crtc, base)
 202#define to_gma_connector(x) \
 203                container_of(x, struct gma_connector, base)
 204#define to_gma_encoder(x)       \
 205                container_of(x, struct gma_encoder, base)
 206#define to_psb_intel_framebuffer(x)     \
 207                container_of(x, struct psb_intel_framebuffer, base)
 208
 209struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 210                                        const u32 reg, const char *name);
 211void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 212int psb_intel_ddc_get_modes(struct drm_connector *connector,
 213                            struct i2c_adapter *adapter);
 214extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 215
 216extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 217                            struct psb_intel_mode_device *mode_dev);
 218extern void psb_intel_crt_init(struct drm_device *dev);
 219extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 220extern void psb_intel_dvo_init(struct drm_device *dev);
 221extern void psb_intel_tv_init(struct drm_device *dev);
 222extern void psb_intel_lvds_init(struct drm_device *dev,
 223                            struct psb_intel_mode_device *mode_dev);
 224extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 225extern void oaktrail_lvds_init(struct drm_device *dev,
 226                           struct psb_intel_mode_device *mode_dev);
 227extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 228extern void oaktrail_dsi_init(struct drm_device *dev,
 229                           struct psb_intel_mode_device *mode_dev);
 230extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
 231extern void mid_dsi_init(struct drm_device *dev,
 232                    struct psb_intel_mode_device *mode_dev, int dsi_num);
 233
 234extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
 235extern void gma_connector_attach_encoder(struct gma_connector *connector,
 236                                         struct gma_encoder *encoder);
 237
 238static inline struct gma_encoder *gma_attached_encoder(
 239                                                struct drm_connector *connector)
 240{
 241        return to_gma_connector(connector)->encoder;
 242}
 243
 244extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 245                                                    struct drm_crtc *crtc);
 246extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 247                                                 int pipe);
 248extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 249                                             int sdvoB);
 250extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 251extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 252                                   int enable);
 253extern int intelfb_probe(struct drm_device *dev);
 254extern int intelfb_remove(struct drm_device *dev,
 255                          struct drm_framebuffer *fb);
 256extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 257                                      const struct drm_display_mode *mode,
 258                                      struct drm_display_mode *adjusted_mode);
 259extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 260                                     struct drm_display_mode *mode);
 261extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 262                                        struct drm_property *property,
 263                                        uint64_t value);
 264extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 265extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 266
 267/* intel_gmbus.c */
 268extern void gma_intel_i2c_reset(struct drm_device *dev);
 269extern int gma_intel_setup_gmbus(struct drm_device *dev);
 270extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 271extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 272extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 273
 274/* DP support */
 275extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 276extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 277                                        struct drm_display_mode *mode,
 278                                        struct drm_display_mode *adjusted_mode);
 279
 280extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 281extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 282
 283extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 284extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 285extern void cdv_sb_reset(struct drm_device *dev);
 286
 287extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 288extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 289
 290#endif                          /* __INTEL_DRV_H__ */
 291