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 37 struct 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 unsigned int USER_LEVEL; 44 }; 45 46 struct panel_cntl_funcs { 47 void (*destroy)(struct panel_cntl **panel_cntl); 48 uint32_t (*hw_init)(struct panel_cntl *panel_cntl); 49 bool (*is_panel_backlight_on)(struct panel_cntl *panel_cntl); 50 bool (*is_panel_powered_on)(struct panel_cntl *panel_cntl); 51 void (*store_backlight_level)(struct panel_cntl *panel_cntl); 52 void (*driver_set_backlight)(struct panel_cntl *panel_cntl, 53 uint32_t backlight_pwm_u16_16); 54 uint32_t (*get_current_backlight)(struct panel_cntl *panel_cntl); 55 }; 56 57 struct panel_cntl_init_data { 58 struct dc_context *ctx; 59 uint32_t inst; 60 uint32_t eng_id; 61 }; 62 63 struct panel_cntl { 64 const struct panel_cntl_funcs *funcs; 65 struct dc_context *ctx; 66 uint32_t inst; 67 uint32_t pwrseq_inst; 68 /* registers setting needs to be saved and restored at InitBacklight */ 69 struct panel_cntl_backlight_registers stored_backlight_registers; 70 }; 71 72 #endif /* DC_PANEL_CNTL_H_ */ 73