/*
* Copyright 2018 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 "dce_i2c.h"
#include "reg_helper.h"
bool dce_i2c_oem_device_present(
struct resource_pool *pool,
struct ddc_service *ddc,
size_t slave_address
)
{
struct dc *dc = ddc->ctx->dc;
struct dc_bios *dcb = dc->ctx->dc_bios;
struct graphics_object_id id = {0 };
struct graphics_object_i2c_info i2c_info;
if (!dc->ctx->dc_bios->fw_info.oem_i2c_present)
return false ;
id.id = dc->ctx->dc_bios->fw_info.oem_i2c_obj_id;
id.enum_id = 0 ;
id.type = OBJECT_TYPE_GENERIC;
if (dcb->funcs->get_i2c_info(dcb, id, &i2c_info) != BP_RESULT_OK)
return false ;
if (i2c_info.i2c_slave_address != slave_address)
return false ;
return true ;
}
bool dce_i2c_submit_command(
struct resource_pool *pool,
struct ddc *ddc,
struct i2c_command *cmd)
{
struct dce_i2c_hw *dce_i2c_hw;
struct dce_i2c_sw dce_i2c_sw = {0 };
if (!ddc) {
BREAK_TO_DEBUGGER();
return false ;
}
if (!cmd) {
BREAK_TO_DEBUGGER();
return false ;
}
dce_i2c_hw = acquire_i2c_hw_engine(pool, ddc);
if (dce_i2c_hw)
return dce_i2c_submit_command_hw(pool, ddc, cmd, dce_i2c_hw);
dce_i2c_sw.ctx = ddc->ctx;
if (dce_i2c_engine_acquire_sw(&dce_i2c_sw, ddc)) {
return dce_i2c_submit_command_sw(pool, ddc, cmd, &dce_i2c_sw);
}
return false ;
}
Messung V0.5 in Prozent C=77 H=94 G=85
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-10-12)
¤
*© Formatika GbR, Deutschland