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