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/*
* This file is part of the coreboot project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef INTEL_I915_H
#define INTEL_I915_H 1
#include <drivers/intel/gma/i915_reg.h>
#include <drivers/intel/gma/drm_dp_helper.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);
struct i915_gpu_controller_info
{
int use_spread_spectrum_clock;
int link_frequency_270_mhz;
u32 backlight;
int ndid;
u32 did[5];
};
void
drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *conf);
const struct i915_gpu_controller_info *
intel_gma_get_controller_info(void);
/* vbt.c */
struct device;
void
generate_fake_intel_oprom(const struct i915_gpu_controller_info *conf,
struct device *dev, const char *idstr);
#endif
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