diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/dc_link_ddc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/dc_link_ddc.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_ddc.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_ddc.h new file mode 100644 index 000000000000..0bf73b742f1f --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/inc/dc_link_ddc.h @@ -0,0 +1,141 @@ +/* + * 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_DDC_SERVICE_H__ +#define __DAL_DDC_SERVICE_H__ + +#include "include/ddc_service_types.h" +#include "include/i2caux_interface.h" + +#define EDID_SEGMENT_SIZE 256 + +/* Address range from 0x00 to 0x1F.*/ +#define DP_ADAPTOR_TYPE2_SIZE 0x20 +#define DP_ADAPTOR_TYPE2_REG_ID 0x10 +#define DP_ADAPTOR_TYPE2_REG_MAX_TMDS_CLK 0x1D +/* Identifies adaptor as Dual-mode adaptor */ +#define DP_ADAPTOR_TYPE2_ID 0xA0 +/* MHz*/ +#define DP_ADAPTOR_TYPE2_MAX_TMDS_CLK 600 +/* MHz*/ +#define DP_ADAPTOR_TYPE2_MIN_TMDS_CLK 25 +/* kHZ*/ +#define DP_ADAPTOR_DVI_MAX_TMDS_CLK 165000 +/* kHZ*/ +#define DP_ADAPTOR_HDMI_SAFE_MAX_TMDS_CLK 165000 + +#define DDC_I2C_COMMAND_ENGINE I2C_COMMAND_ENGINE_SW + +struct ddc_service; +struct graphics_object_id; +enum ddc_result; +struct av_sync_data; +struct dp_receiver_id_info; + +struct i2c_payloads; +struct aux_payloads; + +void dal_ddc_i2c_payloads_add( + struct i2c_payloads *payloads, + uint32_t address, + uint32_t len, + uint8_t *data, + bool write); + +void dal_ddc_aux_payloads_add( + struct aux_payloads *payloads, + uint32_t address, + uint32_t len, + uint8_t *data, + bool write); + +struct ddc_service_init_data { + struct graphics_object_id id; + struct dc_context *ctx; + struct dc_link *link; +}; + +struct ddc_service *dal_ddc_service_create( + struct ddc_service_init_data *ddc_init_data); + +void dal_ddc_service_destroy(struct ddc_service **ddc); + +enum ddc_service_type dal_ddc_service_get_type(struct ddc_service *ddc); + +void dal_ddc_service_set_transaction_type( + struct ddc_service *ddc, + enum ddc_transaction_type type); + +bool dal_ddc_service_is_in_aux_transaction_mode(struct ddc_service *ddc); + +void dal_ddc_service_i2c_query_dp_dual_mode_adaptor( + struct ddc_service *ddc, + struct display_sink_capability *sink_cap); + +bool dal_ddc_service_query_ddc_data( + struct ddc_service *ddc, + uint32_t address, + uint8_t *write_buf, + uint32_t write_size, + uint8_t *read_buf, + uint32_t read_size); + +enum ddc_result dal_ddc_service_read_dpcd_data( + struct ddc_service *ddc, + bool i2c, + enum i2c_mot_mode mot, + uint32_t address, + uint8_t *data, + uint32_t len); + +enum ddc_result dal_ddc_service_write_dpcd_data( + struct ddc_service *ddc, + bool i2c, + enum i2c_mot_mode mot, + uint32_t address, + const uint8_t *data, + uint32_t len); + +void dal_ddc_service_write_scdc_data( + struct ddc_service *ddc_service, + uint32_t pix_clk, + bool lte_340_scramble); + +void dal_ddc_service_read_scdc_data( + struct ddc_service *ddc_service); + +void ddc_service_set_dongle_type(struct ddc_service *ddc, + enum display_dongle_type dongle_type); + +void dal_ddc_service_set_ddc_pin( + struct ddc_service *ddc_service, + struct ddc *ddc); + +struct ddc *dal_ddc_service_get_ddc_pin(struct ddc_service *ddc_service); + +uint32_t get_defer_delay(struct ddc_service *ddc); + +#endif /* __DAL_DDC_SERVICE_H__ */ + |