| /* |
| * Copyright 2012-15 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 "dm_services.h" |
| |
| /* |
| * Pre-requisites: headers required by header of this unit |
| */ |
| #include "include/i2caux_interface.h" |
| #include "../engine.h" |
| #include "../i2c_engine.h" |
| #include "../i2c_sw_engine.h" |
| |
| /* |
| * Header of this unit |
| */ |
| |
| #include "i2c_sw_engine_dce80.h" |
| |
| /* |
| * Post-requisites: headers required by this unit |
| */ |
| |
| #include "dce/dce_8_0_d.h" |
| #include "dce/dce_8_0_sh_mask.h" |
| |
| /* |
| * This unit |
| */ |
| |
| static const uint32_t ddc_hw_status_addr[] = { |
| mmDC_I2C_DDC1_HW_STATUS, |
| mmDC_I2C_DDC2_HW_STATUS, |
| mmDC_I2C_DDC3_HW_STATUS, |
| mmDC_I2C_DDC4_HW_STATUS, |
| mmDC_I2C_DDC5_HW_STATUS, |
| mmDC_I2C_DDC6_HW_STATUS, |
| mmDC_I2C_DDCVGA_HW_STATUS |
| }; |
| |
| /* |
| * @brief |
| * Cast 'struct i2c_sw_engine *' |
| * to 'struct i2c_sw_engine_dce80 *' |
| */ |
| #define FROM_I2C_SW_ENGINE(ptr) \ |
| container_of((ptr), struct i2c_sw_engine_dce80, base) |
| |
| /* |
| * @brief |
| * Cast 'struct i2c_engine *' |
| * to 'struct i2c_sw_engine_dce80 *' |
| */ |
| #define FROM_I2C_ENGINE(ptr) \ |
| FROM_I2C_SW_ENGINE(container_of((ptr), struct i2c_sw_engine, base)) |
| |
| /* |
| * @brief |
| * Cast 'struct engine *' |
| * to 'struct i2c_sw_engine_dce80 *' |
| */ |
| #define FROM_ENGINE(ptr) \ |
| FROM_I2C_ENGINE(container_of((ptr), struct i2c_engine, base)) |
| |
| static void release_engine( |
| struct engine *engine) |
| { |
| |
| } |
| |
| static void destruct( |
| struct i2c_sw_engine_dce80 *engine) |
| { |
| dal_i2c_sw_engine_destruct(&engine->base); |
| } |
| |
| static void destroy( |
| struct i2c_engine **engine) |
| { |
| struct i2c_sw_engine_dce80 *sw_engine = FROM_I2C_ENGINE(*engine); |
| |
| destruct(sw_engine); |
| |
| kfree(sw_engine); |
| |
| *engine = NULL; |
| } |
| |
| static bool acquire_engine( |
| struct i2c_engine *engine, |
| struct ddc *ddc_handle) |
| { |
| return dal_i2caux_i2c_sw_engine_acquire_engine(engine, ddc_handle); |
| } |
| |
| static const struct i2c_engine_funcs i2c_engine_funcs = { |
| .acquire_engine = acquire_engine, |
| .destroy = destroy, |
| .get_speed = dal_i2c_sw_engine_get_speed, |
| .set_speed = dal_i2c_sw_engine_set_speed, |
| .setup_engine = dal_i2c_engine_setup_i2c_engine, |
| .submit_channel_request = dal_i2c_sw_engine_submit_channel_request, |
| .process_channel_reply = dal_i2c_engine_process_channel_reply, |
| .get_channel_status = dal_i2c_sw_engine_get_channel_status, |
| }; |
| |
| static const struct engine_funcs engine_funcs = { |
| .release_engine = release_engine, |
| .get_engine_type = dal_i2c_sw_engine_get_engine_type, |
| .acquire = dal_i2c_engine_acquire, |
| .submit_request = dal_i2c_sw_engine_submit_request, |
| }; |
| |
| static void construct( |
| struct i2c_sw_engine_dce80 *engine, |
| const struct i2c_sw_engine_dce80_create_arg *arg) |
| { |
| struct i2c_sw_engine_create_arg arg_base; |
| |
| arg_base.ctx = arg->ctx; |
| arg_base.default_speed = arg->default_speed; |
| |
| dal_i2c_sw_engine_construct(&engine->base, &arg_base); |
| |
| engine->base.base.base.funcs = &engine_funcs; |
| engine->base.base.funcs = &i2c_engine_funcs; |
| engine->base.default_speed = arg->default_speed; |
| engine->engine_id = arg->engine_id; |
| } |
| |
| struct i2c_engine *dal_i2c_sw_engine_dce80_create( |
| const struct i2c_sw_engine_dce80_create_arg *arg) |
| { |
| struct i2c_sw_engine_dce80 *engine; |
| |
| if (!arg) { |
| BREAK_TO_DEBUGGER(); |
| return NULL; |
| } |
| |
| engine = kzalloc(sizeof(struct i2c_sw_engine_dce80), GFP_KERNEL); |
| |
| if (!engine) { |
| BREAK_TO_DEBUGGER(); |
| return NULL; |
| } |
| |
| construct(engine, arg); |
| return &engine->base.base; |
| } |
| |