2 * Copyright 2019 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
27 #include "dmub_abm_lcd.h"
29 #include "core_types.h"
32 #define TO_DMUB_ABM(abm)\
33 container_of(abm, struct dce_abm, base)
35 #define ABM_FEATURE_NO_SUPPORT 0
36 #define ABM_LCD_SUPPORT 1
38 static unsigned int abm_feature_support(struct abm *abm, unsigned int panel_inst)
40 struct dc_context *dc = abm->ctx;
41 struct dc_link *edp_links[MAX_NUM_EDP];
44 unsigned int ret = ABM_FEATURE_NO_SUPPORT;
46 dc_get_edp_links(dc->dc, edp_links, &edp_num);
48 for (i = 0; i < edp_num; i++) {
54 ret = ABM_LCD_SUPPORT;
60 static void dmub_abm_init_ex(struct abm *abm, uint32_t backlight, uint32_t user_level)
62 dmub_abm_init(abm, backlight, user_level);
65 static unsigned int dmub_abm_get_current_backlight_ex(struct abm *abm)
67 dc_allow_idle_optimizations(abm->ctx->dc, false);
69 return dmub_abm_get_current_backlight(abm);
72 static unsigned int dmub_abm_get_target_backlight_ex(struct abm *abm)
74 dc_allow_idle_optimizations(abm->ctx->dc, false);
76 return dmub_abm_get_target_backlight(abm);
79 static bool dmub_abm_set_level_ex(struct abm *abm, uint32_t level)
82 unsigned int feature_support, i;
83 uint8_t panel_mask0 = 0;
85 for (i = 0; i < MAX_NUM_EDP; i++) {
86 feature_support = abm_feature_support(abm, i);
88 if (feature_support == ABM_LCD_SUPPORT)
89 panel_mask0 |= (0x01 << i);
93 ret = dmub_abm_set_level(abm, level, panel_mask0);
98 static bool dmub_abm_init_config_ex(struct abm *abm,
103 unsigned int feature_support;
105 feature_support = abm_feature_support(abm, inst);
107 if (feature_support == ABM_LCD_SUPPORT)
108 dmub_abm_init_config(abm, src, bytes, inst);
113 static bool dmub_abm_set_pause_ex(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst)
116 unsigned int feature_support;
118 feature_support = abm_feature_support(abm, panel_inst);
120 if (feature_support == ABM_LCD_SUPPORT)
121 ret = dmub_abm_set_pause(abm, pause, panel_inst, stream_inst);
126 /*****************************************************************************
127 * dmub_abm_save_restore_ex() - calls dmub_abm_save_restore for preserving DMUB's
128 * Varibright states for LCD only. OLED is TBD
129 * @abm: used to check get dc context
130 * @panel_inst: panel instance index
131 * @pData: contains command to pause/un-pause abm and abm parameters
134 ***************************************************************************/
135 static bool dmub_abm_save_restore_ex(
137 unsigned int panel_inst,
138 struct abm_save_restore *pData)
141 unsigned int feature_support;
142 struct dc_context *dc = abm->ctx;
144 feature_support = abm_feature_support(abm, panel_inst);
146 if (feature_support == ABM_LCD_SUPPORT)
147 ret = dmub_abm_save_restore(dc, panel_inst, pData);
152 static bool dmub_abm_set_pipe_ex(struct abm *abm,
156 uint32_t pwrseq_inst)
159 unsigned int feature_support;
161 feature_support = abm_feature_support(abm, panel_inst);
163 if (feature_support == ABM_LCD_SUPPORT)
164 ret = dmub_abm_set_pipe(abm, otg_inst, option, panel_inst, pwrseq_inst);
169 static bool dmub_abm_set_backlight_level_pwm_ex(struct abm *abm,
170 unsigned int backlight_pwm_u16_16,
171 unsigned int frame_ramp,
172 unsigned int controller_id,
173 unsigned int panel_inst)
176 unsigned int feature_support;
178 feature_support = abm_feature_support(abm, panel_inst);
180 if (feature_support == ABM_LCD_SUPPORT)
181 ret = dmub_abm_set_backlight_level(abm, backlight_pwm_u16_16, frame_ramp, panel_inst);
186 static const struct abm_funcs abm_funcs = {
187 .abm_init = dmub_abm_init_ex,
188 .set_abm_level = dmub_abm_set_level_ex,
189 .get_current_backlight = dmub_abm_get_current_backlight_ex,
190 .get_target_backlight = dmub_abm_get_target_backlight_ex,
191 .init_abm_config = dmub_abm_init_config_ex,
192 .set_abm_pause = dmub_abm_set_pause_ex,
193 .save_restore = dmub_abm_save_restore_ex,
194 .set_pipe_ex = dmub_abm_set_pipe_ex,
195 .set_backlight_level_pwm = dmub_abm_set_backlight_level_pwm_ex,
198 static void dmub_abm_construct(
199 struct dce_abm *abm_dce,
200 struct dc_context *ctx,
201 const struct dce_abm_registers *regs,
202 const struct dce_abm_shift *abm_shift,
203 const struct dce_abm_mask *abm_mask)
205 struct abm *base = &abm_dce->base;
208 base->funcs = &abm_funcs;
209 base->dmcu_is_running = false;
211 abm_dce->regs = regs;
212 abm_dce->abm_shift = abm_shift;
213 abm_dce->abm_mask = abm_mask;
216 struct abm *dmub_abm_create(
217 struct dc_context *ctx,
218 const struct dce_abm_registers *regs,
219 const struct dce_abm_shift *abm_shift,
220 const struct dce_abm_mask *abm_mask)
222 if (ctx->dc->caps.dmcub_support) {
223 struct dce_abm *abm_dce = kzalloc(sizeof(*abm_dce), GFP_KERNEL);
225 if (abm_dce == NULL) {
230 dmub_abm_construct(abm_dce, ctx, regs, abm_shift, abm_mask);
232 return &abm_dce->base;
237 void dmub_abm_destroy(struct abm **abm)
239 struct dce_abm *abm_dce = TO_DMUB_ABM(*abm);