linux/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c

/*
 * Copyright 2019 Advanced Micro Devices, Inc.
 *
 * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: AMD
 *
 */

#include "dmub_abm.h"
#include "dmub_abm_lcd.h"
#include "dc.h"
#include "core_types.h"
#include "dmub_cmd.h"

#define TO_DMUB_ABM(abm) …

#define ABM_FEATURE_NO_SUPPORT …
#define ABM_LCD_SUPPORT …

static unsigned int abm_feature_support(struct abm *abm, unsigned int panel_inst)
{ … }

static void dmub_abm_init_ex(struct abm *abm, uint32_t backlight, uint32_t user_level)
{ … }

static unsigned int dmub_abm_get_current_backlight_ex(struct abm *abm)
{ … }

static unsigned int dmub_abm_get_target_backlight_ex(struct abm *abm)
{ … }

static bool dmub_abm_set_level_ex(struct abm *abm, uint32_t level)
{ … }

static bool dmub_abm_init_config_ex(struct abm *abm,
	const char *src,
	unsigned int bytes,
	unsigned int inst)
{ … }

static bool dmub_abm_set_pause_ex(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst)
{ … }

/*****************************************************************************
 *  dmub_abm_save_restore_ex() - calls dmub_abm_save_restore for preserving DMUB's
 *                              Varibright states for LCD only. OLED is TBD
 *  @abm: used to check get dc context
 *  @panel_inst: panel instance index
 *  @pData: contains command to pause/un-pause abm and abm parameters
 *
 *
 ***************************************************************************/
static bool dmub_abm_save_restore_ex(
		struct abm *abm,
		unsigned int panel_inst,
		struct abm_save_restore *pData)
{ … }

static bool dmub_abm_set_pipe_ex(struct abm *abm,
		uint32_t otg_inst,
		uint32_t option,
		uint32_t panel_inst,
		uint32_t pwrseq_inst)
{ … }

static bool dmub_abm_set_backlight_level_pwm_ex(struct abm *abm,
		unsigned int backlight_pwm_u16_16,
		unsigned int frame_ramp,
		unsigned int controller_id,
		unsigned int panel_inst)
{ … }

static const struct abm_funcs abm_funcs = …;

static void dmub_abm_construct(
	struct dce_abm *abm_dce,
	struct dc_context *ctx,
	const struct dce_abm_registers *regs,
	const struct dce_abm_shift *abm_shift,
	const struct dce_abm_mask *abm_mask)
{ … }

struct abm *dmub_abm_create(
	struct dc_context *ctx,
	const struct dce_abm_registers *regs,
	const struct dce_abm_shift *abm_shift,
	const struct dce_abm_mask *abm_mask)
{ … }

void dmub_abm_destroy(struct abm **abm)
{ … }