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/*
* 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;
}
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