cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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panel_cntl.h (2378B)

      1/*
      2 * Copyright 2017 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 */
     23/*
     24 * panel_cntl.h
     25 *
     26 *  Created on: Oct 6, 2015
     27 *      Author: yonsun
     28 */
     29
     30#ifndef DC_PANEL_CNTL_H_
     31#define DC_PANEL_CNTL_H_
     32
     33#include "dc_types.h"
     34
     35#define MAX_BACKLIGHT_LEVEL 0xFFFF
     36
     37struct panel_cntl_backlight_registers {
     38	unsigned int BL_PWM_CNTL;
     39	unsigned int BL_PWM_CNTL2;
     40	unsigned int BL_PWM_PERIOD_CNTL;
     41	unsigned int LVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV;
     42	unsigned int PANEL_PWRSEQ_REF_DIV2;
     43};
     44
     45struct panel_cntl_funcs {
     46	void (*destroy)(struct panel_cntl **panel_cntl);
     47	uint32_t (*hw_init)(struct panel_cntl *panel_cntl);
     48	bool (*is_panel_backlight_on)(struct panel_cntl *panel_cntl);
     49	bool (*is_panel_powered_on)(struct panel_cntl *panel_cntl);
     50	void (*store_backlight_level)(struct panel_cntl *panel_cntl);
     51	void (*driver_set_backlight)(struct panel_cntl *panel_cntl,
     52			uint32_t backlight_pwm_u16_16);
     53	uint32_t (*get_current_backlight)(struct panel_cntl *panel_cntl);
     54};
     55
     56struct panel_cntl_init_data {
     57	struct dc_context *ctx;
     58	uint32_t inst;
     59};
     60
     61struct panel_cntl {
     62	const struct panel_cntl_funcs *funcs;
     63	struct dc_context *ctx;
     64	uint32_t inst;
     65	/* registers setting needs to be saved and restored at InitBacklight */
     66	struct panel_cntl_backlight_registers stored_backlight_registers;
     67};
     68
     69#endif /* DC_PANEL_CNTL_H_ */