src/drivers/intel/gma/i915.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef INTEL_I915_H
   4 #define INTEL_I915_H 1
   5
   6 #include <drivers/intel/gma/i915_reg.h>
   7 #include <drivers/intel/gma/gma.h>
   8 #include <edid.h>
   9
  10 /* port types. We stick with the same defines as the kernel */
  11 #define INTEL_OUTPUT_UNUSED 0
  12 #define INTEL_OUTPUT_ANALOG 1
  13 #define INTEL_OUTPUT_DVO 2
  14 #define INTEL_OUTPUT_SDVO 3
  15 #define INTEL_OUTPUT_LVDS 4
  16 #define INTEL_OUTPUT_TVOUT 5
  17 #define INTEL_OUTPUT_HDMI 6
  18 #define INTEL_OUTPUT_DISPLAYPORT 7
  19 #define INTEL_OUTPUT_EDP 8
  20
  21 /* things that are, strangely, not defined anywhere? */
  22 #define PCH_PP_UNLOCK   0xabcd0000
  23 #define WMx_LP_SR_EN    (1UL<<31)
  24 #define PRB0_TAIL       0x02030
  25 #define PRB0_HEAD       0x02034
  26 #define PRB0_START      0x02038
  27 #define PRB0_CTL        0x0203c
  28
  29 enum port {
  30         PORT_A = 0,
  31         PORT_B,
  32         PORT_C,
  33 #if CONFIG(INTEL_GMA_VERSION_2)
  34         PORT_USB_C1,
  35         PORT_USB_C2,
  36         PORT_USB_C3,
  37         PORT_USB_C4,
  38 #endif
  39         PORT_D,
  40         PORT_E,
  41         I915_NUM_PORTS
  42 };
  43
  44 enum pipe {
  45         PIPE_A = 0,
  46         PIPE_B,
  47         PIPE_C,
  48 #if CONFIG(INTEL_GMA_VERSION_2)
  49         PIPE_D,
  50 #endif
  51         I915_NUM_PIPES
  52 };
  53
  54 enum transcoder {
  55         TRANSCODER_A = 0,
  56         TRANSCODER_B,
  57         TRANSCODER_C,
  58         TRANSCODER_EDP = 0xF,
  59 };
  60
  61 enum plane {
  62         PLANE_A = 0,
  63         PLANE_B,
  64         PLANE_C,
  65 };
  66
  67 /* debug enums. These are for printks that, due to their place in the
  68  * middle of graphics device IO, might change timing.  Use with care
  69  * or not at all.
  70  */
  71 enum {
  72         vio = 2, /* dump every IO */
  73         vspin = 4, /* print # of times we spun on a register value */
  74 };
  75
  76 /* The mainboard must provide these functions. */
  77 unsigned long io_i915_read32(unsigned long addr);
  78 void io_i915_write32(unsigned long val, unsigned long addr);
  79
  80 void intel_prepare_ddi(void);
  81
  82 int gtt_poll(u32 reg, u32 mask, u32 value);
  83 void gtt_write(u32 reg, u32 data);
  84 u32 gtt_read(u32 reg);
  85
  86 /* vbt.c */
  87 struct device;
  88 void
  89 generate_fake_intel_oprom(const struct i915_gpu_controller_info *conf,
  90                           struct device *dev, const char *idstr);
  91
  92 #endif