diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h new file mode 100644 index 000000000000..5c6116fb5479 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h @@ -0,0 +1,54 @@ +/* + * 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 + * + */ + +#ifndef __DAL_I2C_HW_ENGINE_DCE80_H__ +#define __DAL_I2C_HW_ENGINE_DCE80_H__ + +struct i2c_hw_engine_dce80 { + struct i2c_hw_engine base; + struct { + uint32_t DC_I2C_DDCX_SETUP; + uint32_t DC_I2C_DDCX_SPEED; + } addr; + uint32_t engine_id; + /* expressed in kilohertz */ + uint32_t reference_frequency; + /* number of bytes currently used in HW buffer */ + uint32_t buffer_used_bytes; + /* number of pending transactions (before GO) */ + uint32_t transaction_count; + uint32_t engine_keep_power_up_count; +}; + +struct i2c_hw_engine_dce80_create_arg { + uint32_t engine_id; + uint32_t reference_frequency; + uint32_t default_speed; + struct dc_context *ctx; +}; + +struct i2c_engine *dal_i2c_hw_engine_dce80_create( + const struct i2c_hw_engine_dce80_create_arg *arg); +#endif |