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/*
* 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)
{
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);
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;
}
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