1 /* $NetBSD: abm.h,v 1.2 2021/12/18 23:45:05 riastradh Exp $ */ 2 3 /* Copyright 2012-15 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: AMD 24 * 25 */ 26 27 #ifndef __DC_ABM_H__ 28 #define __DC_ABM_H__ 29 30 #include "dm_services_types.h" 31 32 struct abm_backlight_registers { 33 unsigned int BL_PWM_CNTL; 34 unsigned int BL_PWM_CNTL2; 35 unsigned int BL_PWM_PERIOD_CNTL; 36 unsigned int LVTMA_PWRSEQ_REF_DIV_BL_PWM_REF_DIV; 37 }; 38 39 struct abm { 40 struct dc_context *ctx; 41 const struct abm_funcs *funcs; 42 bool dmcu_is_running; 43 /* registers setting needs to be saved and restored at InitBacklight */ 44 struct abm_backlight_registers stored_backlight_registers; 45 }; 46 47 struct abm_funcs { 48 void (*abm_init)(struct abm *abm); 49 bool (*set_abm_level)(struct abm *abm, unsigned int abm_level); 50 bool (*set_abm_immediate_disable)(struct abm *abm); 51 bool (*set_pipe)(struct abm *abm, unsigned int controller_id); 52 bool (*init_backlight)(struct abm *abm); 53 54 /* backlight_pwm_u16_16 is unsigned 32 bit, 55 * 16 bit integer + 16 fractional, where 1.0 is max backlight value. 56 */ 57 bool (*set_backlight_level_pwm)(struct abm *abm, 58 unsigned int backlight_pwm_u16_16, 59 unsigned int frame_ramp, 60 unsigned int controller_id, 61 bool use_smooth_brightness); 62 63 unsigned int (*get_current_backlight)(struct abm *abm); 64 unsigned int (*get_target_backlight)(struct abm *abm); 65 }; 66 67 #endif 68