i915.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef INTEL_I915_H
#define INTEL_I915_H 1
 
#include <drivers/intel/gma/i915_reg.h>
#include <drivers/intel/gma/gma.h>
#include <edid.h>
 
/* port types. We stick with the same defines as the kernel */
#define INTEL_OUTPUT_UNUSED 0
#define INTEL_OUTPUT_ANALOG 1
#define INTEL_OUTPUT_DVO 2
#define INTEL_OUTPUT_SDVO 3
#define INTEL_OUTPUT_LVDS 4
#define INTEL_OUTPUT_TVOUT 5
#define INTEL_OUTPUT_HDMI 6
#define INTEL_OUTPUT_DISPLAYPORT 7
#define INTEL_OUTPUT_EDP 8
 
/* things that are, strangely, not defined anywhere? */
#define PCH_PP_UNLOCK   0xabcd0000
#define WMx_LP_SR_EN    (1UL<<31)
#define PRB0_TAIL       0x02030
#define PRB0_HEAD       0x02034
#define PRB0_START      0x02038
#define PRB0_CTL        0x0203c
 
enum port {
        PORT_A = 0,
        PORT_B,
        PORT_C,
        PORT_D,
        PORT_E,
        I915_NUM_PORTS
};
 
enum pipe {
        PIPE_A = 0,
        PIPE_B,
        PIPE_C,
        I915_NUM_PIPES
};
 
enum transcoder {
        TRANSCODER_A = 0,
        TRANSCODER_B,
        TRANSCODER_C,
        TRANSCODER_EDP = 0xF,
};
 
enum plane {
        PLANE_A = 0,
        PLANE_B,
        PLANE_C,
};
 
/* debug enums. These are for printks that, due to their place in the
 * middle of graphics device IO, might change timing.  Use with care
 * or not at all.
 */
enum {
        vio = 2, /* dump every IO */
        vspin = 4, /* print # of times we spun on a register value */
};
 
/* The mainboard must provide these functions. */
unsigned long io_i915_read32(unsigned long addr);
void io_i915_write32(unsigned long val, unsigned long addr);
 
void intel_prepare_ddi(void);
 
int gtt_poll(u32 reg, u32 mask, u32 value);
void gtt_write(u32 reg, u32 data);
u32 gtt_read(u32 reg);
 
/* vbt.c */
struct device;
void
generate_fake_intel_oprom(const struct i915_gpu_controller_info *conf,
                          struct device *dev, const char *idstr);
 
#endif