1 /* 2 * Copyright 2019 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 * Authors: AMD 23 * 24 */ 25 26 #include "dmub_abm.h" 27 #include "dmub_abm_lcd.h" 28 #include "dc.h" 29 #include "core_types.h" 30 #include "dmub_cmd.h" 31 #include "dc_dmub_srv.h" 32 #include "dmub/dmub_srv.h" 33 34 #define TO_DMUB_ABM(abm)\ 35 container_of(abm, struct dce_abm, base) 36 37 #define ABM_FEATURE_NO_SUPPORT 0 38 #define ABM_LCD_SUPPORT 1 39 40 static unsigned int abm_feature_support(struct abm *abm, unsigned int panel_inst) 41 { 42 struct dc_context *dc = abm->ctx; 43 struct dc_link *edp_links[MAX_NUM_EDP]; 44 unsigned int i, edp_num; 45 unsigned int ret = ABM_FEATURE_NO_SUPPORT; 46 47 dc_get_edp_links(dc->dc, edp_links, &edp_num); 48 49 for (i = 0; i < edp_num; i++) { 50 if (panel_inst == i) 51 break; 52 } 53 54 if (i < edp_num) { 55 ret = ABM_LCD_SUPPORT; 56 } 57 58 return ret; 59 } 60 61 static void dmub_abm_init_ex(struct abm *abm, uint32_t backlight, uint32_t user_level) 62 { 63 dmub_abm_init(abm, backlight, user_level); 64 } 65 66 static unsigned int dmub_abm_get_current_backlight_ex(struct abm *abm) 67 { 68 dc_allow_idle_optimizations(abm->ctx->dc, false); 69 70 return dmub_abm_get_current_backlight(abm); 71 } 72 73 static unsigned int dmub_abm_get_target_backlight_ex(struct abm *abm) 74 { 75 dc_allow_idle_optimizations(abm->ctx->dc, false); 76 77 return dmub_abm_get_target_backlight(abm); 78 } 79 80 static bool dmub_abm_set_level_ex(struct abm *abm, uint32_t level) 81 { 82 bool ret = false; 83 unsigned int feature_support, i; 84 uint8_t panel_mask0 = 0; 85 86 for (i = 0; i < MAX_NUM_EDP; i++) { 87 feature_support = abm_feature_support(abm, i); 88 89 if (feature_support == ABM_LCD_SUPPORT) 90 panel_mask0 |= (0x01 << i); 91 } 92 93 if (panel_mask0) 94 ret = dmub_abm_set_level(abm, level, panel_mask0); 95 96 return ret; 97 } 98 99 static bool dmub_abm_init_config_ex(struct abm *abm, 100 const char *src, 101 unsigned int bytes, 102 unsigned int inst) 103 { 104 unsigned int feature_support; 105 106 feature_support = abm_feature_support(abm, inst); 107 108 if (feature_support == ABM_LCD_SUPPORT) 109 dmub_abm_init_config(abm, src, bytes, inst); 110 111 return true; 112 } 113 114 static bool dmub_abm_set_pause_ex(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst) 115 { 116 bool ret = false; 117 unsigned int feature_support; 118 119 feature_support = abm_feature_support(abm, panel_inst); 120 121 if (feature_support == ABM_LCD_SUPPORT) 122 ret = dmub_abm_set_pause(abm, pause, panel_inst, stream_inst); 123 124 return ret; 125 } 126 127 /***************************************************************************** 128 * dmub_abm_save_restore_ex() - calls dmub_abm_save_restore for preserving DMUB's 129 * Varibright states for LCD only. OLED is TBD 130 * @abm: used to check get dc context 131 * @panel_inst: panel instance index 132 * @pData: contains command to pause/un-pause abm and abm parameters 133 * 134 * 135 ***************************************************************************/ 136 static bool dmub_abm_save_restore_ex( 137 struct abm *abm, 138 unsigned int panel_inst, 139 struct abm_save_restore *pData) 140 { 141 bool ret = false; 142 unsigned int feature_support; 143 struct dc_context *dc = abm->ctx; 144 145 feature_support = abm_feature_support(abm, panel_inst); 146 147 if (feature_support == ABM_LCD_SUPPORT) 148 ret = dmub_abm_save_restore(dc, panel_inst, pData); 149 150 return ret; 151 } 152 153 static bool dmub_abm_set_pipe_ex(struct abm *abm, 154 uint32_t otg_inst, 155 uint32_t option, 156 uint32_t panel_inst, 157 uint32_t pwrseq_inst) 158 { 159 bool ret = false; 160 unsigned int feature_support; 161 162 feature_support = abm_feature_support(abm, panel_inst); 163 164 if (feature_support == ABM_LCD_SUPPORT) 165 ret = dmub_abm_set_pipe(abm, otg_inst, option, panel_inst, pwrseq_inst); 166 167 return ret; 168 } 169 170 static bool dmub_abm_set_backlight_level_pwm_ex(struct abm *abm, 171 unsigned int backlight_pwm_u16_16, 172 unsigned int frame_ramp, 173 unsigned int controller_id, 174 unsigned int panel_inst) 175 { 176 (void)controller_id; 177 bool ret = false; 178 unsigned int feature_support; 179 180 feature_support = abm_feature_support(abm, panel_inst); 181 182 if (feature_support == ABM_LCD_SUPPORT) 183 ret = dmub_abm_set_backlight_level(abm, backlight_pwm_u16_16, frame_ramp, panel_inst); 184 185 return ret; 186 } 187 188 static const struct abm_funcs abm_funcs = { 189 .abm_init = dmub_abm_init_ex, 190 .set_abm_level = dmub_abm_set_level_ex, 191 .get_current_backlight = dmub_abm_get_current_backlight_ex, 192 .get_target_backlight = dmub_abm_get_target_backlight_ex, 193 .init_abm_config = dmub_abm_init_config_ex, 194 .set_abm_pause = dmub_abm_set_pause_ex, 195 .save_restore = dmub_abm_save_restore_ex, 196 .set_pipe_ex = dmub_abm_set_pipe_ex, 197 .set_backlight_level_pwm = dmub_abm_set_backlight_level_pwm_ex, 198 }; 199 200 static void dmub_abm_construct( 201 struct dce_abm *abm_dce, 202 struct dc_context *ctx, 203 const struct dce_abm_registers *regs, 204 const struct dce_abm_shift *abm_shift, 205 const struct dce_abm_mask *abm_mask) 206 { 207 struct abm *base = &abm_dce->base; 208 209 base->ctx = ctx; 210 base->funcs = &abm_funcs; 211 base->dmcu_is_running = false; 212 213 abm_dce->regs = regs; 214 abm_dce->abm_shift = abm_shift; 215 abm_dce->abm_mask = abm_mask; 216 } 217 218 struct abm *dmub_abm_create( 219 struct dc_context *ctx, 220 const struct dce_abm_registers *regs, 221 const struct dce_abm_shift *abm_shift, 222 const struct dce_abm_mask *abm_mask) 223 { 224 if (ctx->dc->caps.dmcub_support) { 225 struct dce_abm *abm_dce = kzalloc_obj(*abm_dce); 226 227 if (abm_dce == NULL) { 228 BREAK_TO_DEBUGGER(); 229 return NULL; 230 } 231 232 dmub_abm_construct(abm_dce, ctx, regs, abm_shift, abm_mask); 233 234 return &abm_dce->base; 235 } 236 return NULL; 237 } 238 239 void dmub_abm_destroy(struct abm **abm) 240 { 241 struct dce_abm *abm_dce = TO_DMUB_ABM(*abm); 242 243 kfree(abm_dce); 244 *abm = NULL; 245 } 246