linux/drivers/gpu/drm/i915/display/intel_panel.c

/*
 * Copyright © 2006-2010 Intel Corporation
 * Copyright (c) 2006 Dave Airlie <[email protected]>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *	Eric Anholt <[email protected]>
 *      Dave Airlie <[email protected]>
 *      Jesse Barnes <[email protected]>
 *      Chris Wilson <[email protected]>
 */

#include <linux/kernel.h>
#include <linux/pwm.h>

#include <drm/drm_edid.h>

#include "i915_reg.h"
#include "intel_backlight.h"
#include "intel_connector.h"
#include "intel_de.h"
#include "intel_display_driver.h"
#include "intel_display_types.h"
#include "intel_drrs.h"
#include "intel_lvds_regs.h"
#include "intel_panel.h"
#include "intel_quirks.h"
#include "intel_vrr.h"

bool intel_panel_use_ssc(struct drm_i915_private *i915)
{ … }

const struct drm_display_mode *
intel_panel_preferred_fixed_mode(struct intel_connector *connector)
{ … }

static bool is_best_fixed_mode(struct intel_connector *connector,
			       int vrefresh, int fixed_mode_vrefresh,
			       const struct drm_display_mode *best_mode)
{ … }

const struct drm_display_mode *
intel_panel_fixed_mode(struct intel_connector *connector,
		       const struct drm_display_mode *mode)
{ … }

static bool is_alt_drrs_mode(const struct drm_display_mode *mode,
			     const struct drm_display_mode *preferred_mode)
{ … }

static bool is_alt_fixed_mode(const struct drm_display_mode *mode,
			      const struct drm_display_mode *preferred_mode)
{ … }

const struct drm_display_mode *
intel_panel_downclock_mode(struct intel_connector *connector,
			   const struct drm_display_mode *adjusted_mode)
{ … }

const struct drm_display_mode *
intel_panel_highest_mode(struct intel_connector *connector,
			 const struct drm_display_mode *adjusted_mode)
{ … }

int intel_panel_get_modes(struct intel_connector *connector)
{ … }

static bool has_drrs_modes(struct intel_connector *connector)
{ … }

enum drrs_type intel_panel_drrs_type(struct intel_connector *connector)
{ … }

int intel_panel_compute_config(struct intel_connector *connector,
			       struct drm_display_mode *adjusted_mode)
{ … }

static void intel_panel_add_edid_alt_fixed_modes(struct intel_connector *connector)
{ … }

static void intel_panel_add_edid_preferred_mode(struct intel_connector *connector)
{ … }

static void intel_panel_destroy_probed_modes(struct intel_connector *connector)
{ … }

void intel_panel_add_edid_fixed_modes(struct intel_connector *connector,
				      bool use_alt_fixed_modes)
{ … }

static void intel_panel_add_fixed_mode(struct intel_connector *connector,
				       struct drm_display_mode *fixed_mode,
				       const char *type)
{ … }

void intel_panel_add_vbt_lfp_fixed_mode(struct intel_connector *connector)
{ … }

void intel_panel_add_vbt_sdvo_fixed_mode(struct intel_connector *connector)
{ … }

void intel_panel_add_encoder_fixed_mode(struct intel_connector *connector,
					struct intel_encoder *encoder)
{ … }

/* adjusted_mode has been preset to be the panel's fixed mode */
static int pch_panel_fitting(struct intel_crtc_state *crtc_state,
			     const struct drm_connector_state *conn_state)
{ … }

static void
centre_horizontally(struct drm_display_mode *adjusted_mode,
		    int width)
{ … }

static void
centre_vertically(struct drm_display_mode *adjusted_mode,
		  int height)
{ … }

static u32 panel_fitter_scaling(u32 source, u32 target)
{ … }

static void i965_scale_aspect(struct intel_crtc_state *crtc_state,
			      u32 *pfit_control)
{ … }

static void i9xx_scale_aspect(struct intel_crtc_state *crtc_state,
			      u32 *pfit_control, u32 *pfit_pgm_ratios,
			      u32 *border)
{ … }

static int gmch_panel_fitting(struct intel_crtc_state *crtc_state,
			      const struct drm_connector_state *conn_state)
{ … }

int intel_panel_fitting(struct intel_crtc_state *crtc_state,
			const struct drm_connector_state *conn_state)
{ … }

enum drm_connector_status
intel_panel_detect(struct drm_connector *connector, bool force)
{ … }

enum drm_mode_status
intel_panel_mode_valid(struct intel_connector *connector,
		       const struct drm_display_mode *mode)
{ … }

void intel_panel_init_alloc(struct intel_connector *connector)
{ … }

int intel_panel_init(struct intel_connector *connector,
		     const struct drm_edid *fixed_edid)
{ … }

void intel_panel_fini(struct intel_connector *connector)
{ … }