diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c new file mode 100644 index 000000000000..3aa7f791e523 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c @@ -0,0 +1,160 @@ +/* + * 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_dce110.h" + +/* + * Post-requisites: headers required by this unit + */ + +/* + * This unit + */ + +/* + * @brief + * Cast 'struct i2c_sw_engine *' + * to 'struct i2c_sw_engine_dce110 *' + */ +#define FROM_I2C_SW_ENGINE(ptr) \ + container_of((ptr), struct i2c_sw_engine_dce110, 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_dce110 *engine) +{ + dal_i2c_sw_engine_destruct(&engine->base); +} + +static void destroy( + struct i2c_engine **engine) +{ + struct i2c_sw_engine_dce110 *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_dce110 *engine_dce110, + const struct i2c_sw_engine_dce110_create_arg *arg_dce110) +{ + struct i2c_sw_engine_create_arg arg_base; + + arg_base.ctx = arg_dce110->ctx; + arg_base.default_speed = arg_dce110->default_speed; + + dal_i2c_sw_engine_construct(&engine_dce110->base, &arg_base); + + /*struct engine struct engine_funcs*/ + engine_dce110->base.base.base.funcs = &engine_funcs; + /*struct i2c_engine struct i2c_engine_funcs*/ + engine_dce110->base.base.funcs = &i2c_engine_funcs; + engine_dce110->base.default_speed = arg_dce110->default_speed; + engine_dce110->engine_id = arg_dce110->engine_id; +} + +struct i2c_engine *dal_i2c_sw_engine_dce110_create( + const struct i2c_sw_engine_dce110_create_arg *arg) +{ + struct i2c_sw_engine_dce110 *engine_dce110; + + if (!arg) { + ASSERT_CRITICAL(false); + return NULL; + } + + engine_dce110 = kzalloc(sizeof(struct i2c_sw_engine_dce110), + GFP_KERNEL); + + if (!engine_dce110) { + ASSERT_CRITICAL(false); + return NULL; + } + + construct(engine_dce110, arg); + return &engine_dce110->base.base; +} |