/* * Copyright 2019 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: AMD * */ #include "dmub_abm.h" #include "dmub_abm_lcd.h" #include "dc.h" #include "core_types.h" #include "dmub_cmd.h" #define TO_DMUB_ABM(abm)\ container_of(abm, struct dce_abm, base) #define ABM_FEATURE_NO_SUPPORT 0 #define ABM_LCD_SUPPORT 1 static unsigned int abm_feature_support(struct abm *abm, unsigned int panel_inst) { struct dc_context *dc = abm->ctx; struct dc_link *edp_links[MAX_NUM_EDP]; int i; int edp_num; unsigned int ret = ABM_FEATURE_NO_SUPPORT; dc_get_edp_links(dc->dc, edp_links, &edp_num); for (i = 0; i < edp_num; i++) { if (panel_inst == i) break; } if (i < edp_num) { ret = ABM_LCD_SUPPORT; } return ret; } static void dmub_abm_init_ex(struct abm *abm, uint32_t backlight) { dmub_abm_init(abm, backlight); } static unsigned int dmub_abm_get_current_backlight_ex(struct abm *abm) { return dmub_abm_get_current_backlight(abm); } static unsigned int dmub_abm_get_target_backlight_ex(struct abm *abm) { return dmub_abm_get_target_backlight(abm); } static bool dmub_abm_set_level_ex(struct abm *abm, uint32_t level) { bool ret = false; unsigned int feature_support, i; uint8_t panel_mask0 = 0; for (i = 0; i < MAX_NUM_EDP; i++) { feature_support = abm_feature_support(abm, i); if (feature_support == ABM_LCD_SUPPORT) panel_mask0 |= (0x01 << i); } if (panel_mask0) ret = dmub_abm_set_level(abm, level, panel_mask0); return ret; } static bool dmub_abm_init_config_ex(struct abm *abm, const char *src, unsigned int bytes, unsigned int inst) { unsigned int feature_support; feature_support = abm_feature_support(abm, inst); if (feature_support == ABM_LCD_SUPPORT) dmub_abm_init_config(abm, src, bytes, inst); return true; } static bool dmub_abm_set_pause_ex(struct abm *abm, bool pause, unsigned int panel_inst, unsigned int stream_inst) { bool ret = false; unsigned int feature_support; feature_support = abm_feature_support(abm, panel_inst); if (feature_support == ABM_LCD_SUPPORT) ret = dmub_abm_set_pause(abm, pause, panel_inst, stream_inst); return ret; } /***************************************************************************** * dmub_abm_save_restore_ex() - calls dmub_abm_save_restore for preserving DMUB's * Varibright states for LCD only. OLED is TBD * @abm: used to check get dc context * @panel_inst: panel instance index * @pData: contains command to pause/un-pause abm and abm parameters * * ***************************************************************************/ static bool dmub_abm_save_restore_ex( struct abm *abm, unsigned int panel_inst, struct abm_save_restore *pData) { bool ret = false; unsigned int feature_support; struct dc_context *dc = abm->ctx; feature_support = abm_feature_support(abm, panel_inst); if (feature_support == ABM_LCD_SUPPORT) ret = dmub_abm_save_restore(dc, panel_inst, pData); return ret; } static bool dmub_abm_set_pipe_ex(struct abm *abm, uint32_t otg_inst, uint32_t option, uint32_t panel_inst, uint32_t pwrseq_inst) { bool ret = false; unsigned int feature_support; feature_support = abm_feature_support(abm, panel_inst); if (feature_support == ABM_LCD_SUPPORT) ret = dmub_abm_set_pipe(abm, otg_inst, option, panel_inst, pwrseq_inst); return ret; } static bool dmub_abm_set_backlight_level_pwm_ex(struct abm *abm, unsigned int backlight_pwm_u16_16, unsigned int frame_ramp, unsigned int controller_id, unsigned int panel_inst) { bool ret = false; unsigned int feature_support; feature_support = abm_feature_support(abm, panel_inst); if (feature_support == ABM_LCD_SUPPORT) ret = dmub_abm_set_backlight_level(abm, backlight_pwm_u16_16, frame_ramp, panel_inst); return ret; } static const struct abm_funcs abm_funcs = { .abm_init = dmub_abm_init_ex, .set_abm_level = dmub_abm_set_level_ex, .get_current_backlight = dmub_abm_get_current_backlight_ex, .get_target_backlight = dmub_abm_get_target_backlight_ex, .init_abm_config = dmub_abm_init_config_ex, .set_abm_pause = dmub_abm_set_pause_ex, .save_restore = dmub_abm_save_restore_ex, .set_pipe_ex = dmub_abm_set_pipe_ex, .set_backlight_level_pwm = dmub_abm_set_backlight_level_pwm_ex, }; static void dmub_abm_construct( struct dce_abm *abm_dce, struct dc_context *ctx, const struct dce_abm_registers *regs, const struct dce_abm_shift *abm_shift, const struct dce_abm_mask *abm_mask) { struct abm *base = &abm_dce->base; base->ctx = ctx; base->funcs = &abm_funcs; base->dmcu_is_running = false; abm_dce->regs = regs; abm_dce->abm_shift = abm_shift; abm_dce->abm_mask = abm_mask; } struct abm *dmub_abm_create( struct dc_context *ctx, const struct dce_abm_registers *regs, const struct dce_abm_shift *abm_shift, const struct dce_abm_mask *abm_mask) { if (ctx->dc->caps.dmcub_support) { struct dce_abm *abm_dce = kzalloc(sizeof(*abm_dce), GFP_KERNEL); if (abm_dce == NULL) { BREAK_TO_DEBUGGER(); return NULL; } dmub_abm_construct(abm_dce, ctx, regs, abm_shift, abm_mask); return &abm_dce->base; } return NULL; } void dmub_abm_destroy(struct abm **abm) { struct dce_abm *abm_dce = TO_DMUB_ABM(*abm); kfree(abm_dce); *abm = NULL; }