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

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (c) 2009-2011, Intel Corporation.
   4 */
   5
   6#ifndef __INTEL_DRV_H__
   7#define __INTEL_DRV_H__
   8
   9#include <linux/i2c.h>
  10#include <linux/i2c-algo-bit.h>
  11#include <drm/drm_crtc.h>
  12#include <drm/drm_crtc_helper.h>
  13#include <drm/drm_encoder.h>
  14#include <drm/drm_probe_helper.h>
  15#include <linux/gpio.h>
  16#include "gma_display.h"
  17
  18/*
  19 * Display related stuff
  20 */
  21
  22/* maximum connectors per crtcs in the mode set */
  23#define INTELFB_CONN_LIMIT 4
  24
  25/* Intel Pipe Clone Bit */
  26#define INTEL_HDMIB_CLONE_BIT 1
  27#define INTEL_HDMIC_CLONE_BIT 2
  28#define INTEL_HDMID_CLONE_BIT 3
  29#define INTEL_HDMIE_CLONE_BIT 4
  30#define INTEL_HDMIF_CLONE_BIT 5
  31#define INTEL_SDVO_NON_TV_CLONE_BIT 6
  32#define INTEL_SDVO_TV_CLONE_BIT 7
  33#define INTEL_SDVO_LVDS_CLONE_BIT 8
  34#define INTEL_ANALOG_CLONE_BIT 9
  35#define INTEL_TV_CLONE_BIT 10
  36#define INTEL_DP_B_CLONE_BIT 11
  37#define INTEL_DP_C_CLONE_BIT 12
  38#define INTEL_DP_D_CLONE_BIT 13
  39#define INTEL_LVDS_CLONE_BIT 14
  40#define INTEL_DVO_TMDS_CLONE_BIT 15
  41#define INTEL_DVO_LVDS_CLONE_BIT 16
  42#define INTEL_EDP_CLONE_BIT 17
  43
  44/* these are outputs from the chip - integrated only
  45 * external chips are via DVO or SDVO output */
  46#define INTEL_OUTPUT_UNUSED 0
  47#define INTEL_OUTPUT_ANALOG 1
  48#define INTEL_OUTPUT_DVO 2
  49#define INTEL_OUTPUT_SDVO 3
  50#define INTEL_OUTPUT_LVDS 4
  51#define INTEL_OUTPUT_TVOUT 5
  52#define INTEL_OUTPUT_HDMI 6
  53#define INTEL_OUTPUT_MIPI 7
  54#define INTEL_OUTPUT_MIPI2 8
  55#define INTEL_OUTPUT_DISPLAYPORT 9
  56#define INTEL_OUTPUT_EDP 10
  57
  58#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
  59#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
  60
  61static inline void
  62psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
  63                                int multiplier)
  64{
  65        mode->clock *= multiplier;
  66        mode->private_flags |= multiplier;
  67}
  68
  69static inline int
  70psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
  71{
  72        return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
  73               >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
  74}
  75
  76
  77/*
  78 * Hold information useally put on the device driver privates here,
  79 * since it needs to be shared across multiple of devices drivers privates.
  80 */
  81struct psb_intel_mode_device {
  82
  83        /*
  84         * Abstracted memory manager operations
  85         */
  86         size_t(*bo_offset) (struct drm_device *dev, void *bo);
  87
  88        /*
  89         * LVDS info
  90         */
  91        int backlight_duty_cycle;       /* restore backlight to this value */
  92        bool panel_wants_dither;
  93        struct drm_display_mode *panel_fixed_mode;
  94        struct drm_display_mode *panel_fixed_mode2;
  95        struct drm_display_mode *vbt_mode;      /* if any */
  96
  97        uint32_t saveBLC_PWM_CTL;
  98};
  99
 100struct psb_intel_i2c_chan {
 101        /* for getting at dev. private (mmio etc.) */
 102        struct drm_device *drm_dev;
 103        u32 reg;                /* GPIO reg */
 104        struct i2c_adapter adapter;
 105        struct i2c_algo_bit_data algo;
 106        u8 slave_addr;
 107};
 108
 109struct gma_encoder {
 110        struct drm_encoder base;
 111        int type;
 112        bool needs_tv_clock;
 113        void (*hot_plug)(struct gma_encoder *);
 114        int crtc_mask;
 115        int clone_mask;
 116        u32 ddi_select; /* Channel info */
 117#define DDI0_SELECT     0x01
 118#define DDI1_SELECT     0x02
 119#define DP_MASK         0x8000
 120#define DDI_MASK        0x03
 121        void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
 122
 123        /* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
 124           own set of output privates */
 125        struct psb_intel_i2c_chan *i2c_bus;
 126        struct psb_intel_i2c_chan *ddc_bus;
 127};
 128
 129struct gma_connector {
 130        struct drm_connector base;
 131        struct gma_encoder *encoder;
 132
 133        void (*save)(struct drm_connector *connector);
 134        void (*restore)(struct drm_connector *connector);
 135};
 136
 137struct psb_intel_crtc_state {
 138        uint32_t saveDSPCNTR;
 139        uint32_t savePIPECONF;
 140        uint32_t savePIPESRC;
 141        uint32_t saveDPLL;
 142        uint32_t saveFP0;
 143        uint32_t saveFP1;
 144        uint32_t saveHTOTAL;
 145        uint32_t saveHBLANK;
 146        uint32_t saveHSYNC;
 147        uint32_t saveVTOTAL;
 148        uint32_t saveVBLANK;
 149        uint32_t saveVSYNC;
 150        uint32_t saveDSPSTRIDE;
 151        uint32_t saveDSPSIZE;
 152        uint32_t saveDSPPOS;
 153        uint32_t saveDSPBASE;
 154        uint32_t savePalette[256];
 155};
 156
 157struct gma_crtc {
 158        struct drm_crtc base;
 159        int pipe;
 160        int plane;
 161        uint32_t cursor_addr;
 162        struct gtt_range *cursor_gt;
 163        u8 lut_adj[256];
 164        struct psb_intel_framebuffer *fbdev_fb;
 165        /* a mode_set for fbdev users on this crtc */
 166        struct drm_mode_set mode_set;
 167
 168        /* GEM object that holds our cursor */
 169        struct drm_gem_object *cursor_obj;
 170
 171        struct drm_display_mode saved_mode;
 172        struct drm_display_mode saved_adjusted_mode;
 173
 174        struct psb_intel_mode_device *mode_dev;
 175
 176        /*crtc mode setting flags*/
 177        u32 mode_flags;
 178
 179        bool active;
 180
 181        /* Saved Crtc HW states */
 182        struct psb_intel_crtc_state *crtc_state;
 183
 184        const struct gma_clock_funcs *clock_funcs;
 185};
 186
 187#define to_gma_crtc(x)  \
 188                container_of(x, struct gma_crtc, base)
 189#define to_gma_connector(x) \
 190                container_of(x, struct gma_connector, base)
 191#define to_gma_encoder(x)       \
 192                container_of(x, struct gma_encoder, base)
 193#define to_psb_intel_framebuffer(x)     \
 194                container_of(x, struct psb_intel_framebuffer, base)
 195
 196struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
 197                                        const u32 reg, const char *name);
 198void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
 199int psb_intel_ddc_get_modes(struct drm_connector *connector,
 200                            struct i2c_adapter *adapter);
 201extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
 202
 203extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
 204                            struct psb_intel_mode_device *mode_dev);
 205extern void psb_intel_crt_init(struct drm_device *dev);
 206extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
 207extern void psb_intel_dvo_init(struct drm_device *dev);
 208extern void psb_intel_tv_init(struct drm_device *dev);
 209extern void psb_intel_lvds_init(struct drm_device *dev,
 210                            struct psb_intel_mode_device *mode_dev);
 211extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
 212extern void oaktrail_lvds_init(struct drm_device *dev,
 213                           struct psb_intel_mode_device *mode_dev);
 214extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
 215extern void oaktrail_dsi_init(struct drm_device *dev,
 216                           struct psb_intel_mode_device *mode_dev);
 217extern void oaktrail_lvds_i2c_init(struct drm_encoder *encoder);
 218extern void mid_dsi_init(struct drm_device *dev,
 219                    struct psb_intel_mode_device *mode_dev, int dsi_num);
 220
 221extern struct drm_encoder *gma_best_encoder(struct drm_connector *connector);
 222extern void gma_connector_attach_encoder(struct gma_connector *connector,
 223                                         struct gma_encoder *encoder);
 224
 225static inline struct gma_encoder *gma_attached_encoder(
 226                                                struct drm_connector *connector)
 227{
 228        return to_gma_connector(connector)->encoder;
 229}
 230
 231extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
 232                                                    struct drm_crtc *crtc);
 233extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
 234                                                 int pipe);
 235extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
 236                                             int sdvoB);
 237extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
 238extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
 239                                   int enable);
 240extern int intelfb_probe(struct drm_device *dev);
 241extern int intelfb_remove(struct drm_device *dev,
 242                          struct drm_framebuffer *fb);
 243extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
 244                                      const struct drm_display_mode *mode,
 245                                      struct drm_display_mode *adjusted_mode);
 246extern enum drm_mode_status psb_intel_lvds_mode_valid(struct drm_connector *connector,
 247                                     struct drm_display_mode *mode);
 248extern int psb_intel_lvds_set_property(struct drm_connector *connector,
 249                                        struct drm_property *property,
 250                                        uint64_t value);
 251extern void psb_intel_lvds_destroy(struct drm_connector *connector);
 252extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
 253
 254/* intel_gmbus.c */
 255extern void gma_intel_i2c_reset(struct drm_device *dev);
 256extern int gma_intel_setup_gmbus(struct drm_device *dev);
 257extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
 258extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
 259extern void gma_intel_teardown_gmbus(struct drm_device *dev);
 260
 261/* DP support */
 262extern void cdv_intel_dp_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int output_reg);
 263extern void cdv_intel_dp_set_m_n(struct drm_crtc *crtc,
 264                                        struct drm_display_mode *mode,
 265                                        struct drm_display_mode *adjusted_mode);
 266
 267extern void psb_intel_attach_force_audio_property(struct drm_connector *connector);
 268extern void psb_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 269
 270extern int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val);
 271extern int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val);
 272extern void cdv_sb_reset(struct drm_device *dev);
 273
 274extern void cdv_intel_attach_force_audio_property(struct drm_connector *connector);
 275extern void cdv_intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 276
 277#endif                          /* __INTEL_DRV_H__ */
 278