From 203490d30f7a7fd075207aece8f802e23b462aa6 Mon Sep 17 00:00:00 2001 From: Bhawanpreet Lakha Date: Thu, 28 Jun 2018 17:50:05 -0400 Subject: [PATCH 5013/5725] drm/amd/display: flatten aux_engine and engine [Why] engine and aux_engine are unnecessary layers we want to remove this layer. [How] flatten engine and aux engine structs into one struct called aux_engine and remove all references to the engine struct. Signed-off-by: Bhawanpreet Lakha Reviewed-by: Harry Wentland Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c | 8 +- drivers/gpu/drm/amd/display/dc/dce/dce_aux.c | 55 ++++----- drivers/gpu/drm/amd/display/dc/dce/dce_aux.h | 4 +- .../drm/amd/display/dc/dce100/dce100_resource.c | 4 +- .../drm/amd/display/dc/dce110/dce110_resource.c | 4 +- .../drm/amd/display/dc/dce112/dce112_resource.c | 4 +- .../drm/amd/display/dc/dce120/dce120_resource.c | 4 +- .../gpu/drm/amd/display/dc/dce80/dce80_resource.c | 4 +- .../gpu/drm/amd/display/dc/dcn10/dcn10_resource.c | 4 +- drivers/gpu/drm/amd/display/dc/inc/core_types.h | 2 +- drivers/gpu/drm/amd/display/dc/inc/hw/aux_engine.h | 127 ++++++++++++++++----- drivers/gpu/drm/amd/display/dc/inc/hw/engine.h | 106 ----------------- 12 files changed, 140 insertions(+), 186 deletions(-) delete mode 100644 drivers/gpu/drm/amd/display/dc/inc/hw/engine.h diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c index 4019fe07..8def0d9 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c @@ -33,7 +33,6 @@ #include "include/vector.h" #include "core_types.h" #include "dc_link_ddc.h" -#include "engine.h" #include "aux_engine.h" #define AUX_POWER_UP_WA_DELAY 500 @@ -640,7 +639,6 @@ int dc_link_aux_transfer(struct ddc_service *ddc, enum i2caux_transaction_action action) { struct ddc *ddc_pin = ddc->ddc_pin; - struct engine *engine; struct aux_engine *aux_engine; enum aux_channel_operation_result operation_result; struct aux_request_transaction_data aux_req; @@ -652,8 +650,8 @@ int dc_link_aux_transfer(struct ddc_service *ddc, memset(&aux_req, 0, sizeof(aux_req)); memset(&aux_rep, 0, sizeof(aux_rep)); - engine = ddc->ctx->dc->res_pool->engines[ddc_pin->pin_data->en]; - aux_engine = engine->funcs->acquire(engine, ddc_pin); + aux_engine = ddc->ctx->dc->res_pool->engines[ddc_pin->pin_data->en]; + aux_engine->funcs->acquire(aux_engine, ddc_pin); aux_req.type = type; aux_req.action = action; @@ -685,7 +683,7 @@ int dc_link_aux_transfer(struct ddc_service *ddc, res = -1; break; } - aux_engine->base.funcs->release_engine(&aux_engine->base); + aux_engine->funcs->release_engine(aux_engine); return res; } diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c index b28e212..3f5b2e6 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.c @@ -28,12 +28,12 @@ #include "dce/dce_11_0_sh_mask.h" #define CTX \ - aux110->base.base.ctx + aux110->base.ctx #define REG(reg_name)\ (aux110->regs->reg_name) #define DC_LOGGER \ - engine->base.ctx->logger + engine->ctx->logger #include "reg_helper.h" @@ -51,9 +51,9 @@ enum { AUX_DEFER_RETRY_COUNTER = 6 }; static void release_engine( - struct engine *engine) + struct aux_engine *engine) { - struct aux_engine_dce110 *aux110 = FROM_ENGINE(engine); + struct aux_engine_dce110 *aux110 = FROM_AUX_ENGINE(engine); dal_ddc_close(engine->ddc); @@ -827,22 +827,21 @@ static bool end_of_transaction_command( /* according Syed, it does not need now DoDummyMOT */ } -bool submit_request( - struct engine *engine, +static bool submit_request( + struct aux_engine *engine, struct i2caux_transaction_request *request, bool middle_of_transaction) { - struct aux_engine *aux_engine = FROM_AUX_ENGINE_ENGINE(engine); bool result; bool mot_used = true; switch (request->operation) { case I2CAUX_TRANSACTION_READ: - result = read_command(aux_engine, request, mot_used); + result = read_command(engine, request, mot_used); break; case I2CAUX_TRANSACTION_WRITE: - result = write_command(aux_engine, request, mot_used); + result = write_command(engine, request, mot_used); break; default: result = false; @@ -854,45 +853,45 @@ bool submit_request( */ if (!middle_of_transaction || !result) - end_of_transaction_command(aux_engine, request); + end_of_transaction_command(engine, request); /* mask AUX interrupt */ return result; } enum i2caux_engine_type get_engine_type( - const struct engine *engine) + const struct aux_engine *engine) { return I2CAUX_ENGINE_TYPE_AUX; } -static struct aux_engine *acquire( - struct engine *engine, +static bool acquire( + struct aux_engine *engine, struct ddc *ddc) { - struct aux_engine *aux_engine = FROM_AUX_ENGINE_ENGINE(engine); + enum gpio_result result; - if (aux_engine->funcs->is_engine_available) { + if (engine->funcs->is_engine_available) { /*check whether SW could use the engine*/ - if (!aux_engine->funcs->is_engine_available(aux_engine)) - return NULL; + if (!engine->funcs->is_engine_available(engine)) + return false; } result = dal_ddc_open(ddc, GPIO_MODE_HARDWARE, GPIO_DDC_CONFIG_TYPE_MODE_AUX); if (result != GPIO_RESULT_OK) - return NULL; + return false; - if (!aux_engine->funcs->acquire_engine(aux_engine)) { + if (!engine->funcs->acquire_engine(engine)) { dal_ddc_close(ddc); - return NULL; + return false; } engine->ddc = ddc; - return aux_engine; + return true; } static const struct aux_engine_funcs aux_engine_funcs = { @@ -902,9 +901,6 @@ static const struct aux_engine_funcs aux_engine_funcs = { .read_channel_reply = read_channel_reply, .get_channel_status = get_channel_status, .is_engine_available = is_engine_available, -}; - -static const struct engine_funcs engine_funcs = { .release_engine = release_engine, .destroy_engine = dce110_engine_destroy, .submit_request = submit_request, @@ -912,10 +908,10 @@ static const struct engine_funcs engine_funcs = { .acquire = acquire, }; -void dce110_engine_destroy(struct engine **engine) +void dce110_engine_destroy(struct aux_engine **engine) { - struct aux_engine_dce110 *engine110 = FROM_ENGINE(*engine); + struct aux_engine_dce110 *engine110 = FROM_AUX_ENGINE(*engine); kfree(engine110); *engine = NULL; @@ -927,13 +923,12 @@ struct aux_engine *dce110_aux_engine_construct(struct aux_engine_dce110 *aux_eng uint32_t timeout_period, const struct dce110_aux_registers *regs) { - aux_engine110->base.base.ddc = NULL; - aux_engine110->base.base.ctx = ctx; + aux_engine110->base.ddc = NULL; + aux_engine110->base.ctx = ctx; aux_engine110->base.delay = 0; aux_engine110->base.max_defer_write_retry = 0; - aux_engine110->base.base.funcs = &engine_funcs; aux_engine110->base.funcs = &aux_engine_funcs; - aux_engine110->base.base.inst = inst; + aux_engine110->base.inst = inst; aux_engine110->timeout_period = timeout_period; aux_engine110->regs = regs; diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h index c6b2aec..f7caab8 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h @@ -103,9 +103,9 @@ struct aux_engine *dce110_aux_engine_construct( uint32_t timeout_period, const struct dce110_aux_registers *regs); -void dce110_engine_destroy(struct engine **engine); +void dce110_engine_destroy(struct aux_engine **engine); bool dce110_aux_engine_acquire( - struct engine *aux_engine, + struct aux_engine *aux_engine, struct ddc *ddc); #endif diff --git a/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c b/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c index c34c953..fd2bdae 100644 --- a/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c @@ -586,7 +586,7 @@ struct output_pixel_processor *dce100_opp_create( return &opp->base; } -struct engine *dce100_aux_engine_create( +struct aux_engine *dce100_aux_engine_create( struct dc_context *ctx, uint32_t inst) { @@ -600,7 +600,7 @@ struct engine *dce100_aux_engine_create( SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD, &aux_engine_regs[inst]); - return &aux_engine->base.base; + return &aux_engine->base; } struct clock_source *dce100_clock_source_create( diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c index 4a665a2..e5e9e92 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c @@ -604,7 +604,7 @@ static struct output_pixel_processor *dce110_opp_create( return &opp->base; } -struct engine *dce110_aux_engine_create( +struct aux_engine *dce110_aux_engine_create( struct dc_context *ctx, uint32_t inst) { @@ -618,7 +618,7 @@ struct engine *dce110_aux_engine_create( SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD, &aux_engine_regs[inst]); - return &aux_engine->base.base; + return &aux_engine->base; } struct clock_source *dce110_clock_source_create( diff --git a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c index caf90ae..84a05ff 100644 --- a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c @@ -604,7 +604,7 @@ struct output_pixel_processor *dce112_opp_create( return &opp->base; } -struct engine *dce112_aux_engine_create( +struct aux_engine *dce112_aux_engine_create( struct dc_context *ctx, uint32_t inst) { @@ -618,7 +618,7 @@ struct engine *dce112_aux_engine_create( SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD, &aux_engine_regs[inst]); - return &aux_engine->base.base; + return &aux_engine->base; } struct clock_source *dce112_clock_source_create( diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c index f7d02f2..61d8e22 100644 --- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c @@ -376,7 +376,7 @@ struct output_pixel_processor *dce120_opp_create( ctx, inst, &opp_regs[inst], &opp_shift, &opp_mask); return &opp->base; } -struct engine *dce120_aux_engine_create( +struct aux_engine *dce120_aux_engine_create( struct dc_context *ctx, uint32_t inst) { @@ -390,7 +390,7 @@ struct engine *dce120_aux_engine_create( SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD, &aux_engine_regs[inst]); - return &aux_engine->base.base; + return &aux_engine->base; } static const struct bios_registers bios_regs = { diff --git a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c index 6fb33ad..dc9f3e9 100644 --- a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c @@ -464,7 +464,7 @@ static struct output_pixel_processor *dce80_opp_create( return &opp->base; } -struct engine *dce80_aux_engine_create( +struct aux_engine *dce80_aux_engine_create( struct dc_context *ctx, uint32_t inst) { @@ -478,7 +478,7 @@ struct engine *dce80_aux_engine_create( SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD, &aux_engine_regs[inst]); - return &aux_engine->base.base; + return &aux_engine->base; } static struct stream_encoder *dce80_stream_encoder_create( diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c index c39934f..6b44ed3 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c @@ -594,7 +594,7 @@ static struct output_pixel_processor *dcn10_opp_create( return &opp->base; } -struct engine *dcn10_aux_engine_create( +struct aux_engine *dcn10_aux_engine_create( struct dc_context *ctx, uint32_t inst) { @@ -608,7 +608,7 @@ struct engine *dcn10_aux_engine_create( SW_AUX_TIMEOUT_PERIOD_MULTIPLIER * AUX_TIMEOUT_PERIOD, &aux_engine_regs[inst]); - return &aux_engine->base.base; + return &aux_engine->base; } static struct mpc *dcn10_mpc_create(struct dc_context *ctx) diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h index 3b7e9aa..b4d3300 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h +++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h @@ -138,7 +138,7 @@ struct resource_pool { struct output_pixel_processor *opps[MAX_PIPES]; struct timing_generator *timing_generators[MAX_PIPES]; struct stream_encoder *stream_enc[MAX_PIPES * 2]; - struct engine *engines[MAX_PIPES]; + struct aux_engine *engines[MAX_PIPES]; struct hubbub *hubbub; struct mpc *mpc; struct pp_smu_funcs_rv *pp_smu; diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/aux_engine.h b/drivers/gpu/drm/amd/display/dc/inc/hw/aux_engine.h index 06d7e5d..e79cd4e 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/aux_engine.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/aux_engine.h @@ -26,46 +26,72 @@ #ifndef __DAL_AUX_ENGINE_H__ #define __DAL_AUX_ENGINE_H__ -#include "engine.h" +#include "dc_ddc_types.h" #include "include/i2caux_interface.h" -struct aux_engine; -union aux_config; -struct aux_engine_funcs { - void (*destroy)( - struct aux_engine **ptr); - bool (*acquire_engine)( - struct aux_engine *engine); - void (*configure)( - struct aux_engine *engine, - union aux_config cfg); - void (*submit_channel_request)( - struct aux_engine *engine, - struct aux_request_transaction_data *request); - void (*process_channel_reply)( - struct aux_engine *engine, - struct aux_reply_transaction_data *reply); - int (*read_channel_reply)( - struct aux_engine *engine, - uint32_t size, - uint8_t *buffer, - uint8_t *reply_result, - uint32_t *sw_status); - enum aux_channel_operation_result (*get_channel_status)( - struct aux_engine *engine, - uint8_t *returned_bytes); - bool (*is_engine_available)(struct aux_engine *engine); +enum i2caux_transaction_operation { + I2CAUX_TRANSACTION_READ, + I2CAUX_TRANSACTION_WRITE +}; + +enum i2caux_transaction_address_space { + I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C = 1, + I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD +}; + +struct i2caux_transaction_payload { + enum i2caux_transaction_address_space address_space; + uint32_t address; + uint32_t length; + uint8_t *data; +}; + +enum i2caux_transaction_status { + I2CAUX_TRANSACTION_STATUS_UNKNOWN = (-1L), + I2CAUX_TRANSACTION_STATUS_SUCCEEDED, + I2CAUX_TRANSACTION_STATUS_FAILED_CHANNEL_BUSY, + I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT, + I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR, + I2CAUX_TRANSACTION_STATUS_FAILED_NACK, + I2CAUX_TRANSACTION_STATUS_FAILED_INCOMPLETE, + I2CAUX_TRANSACTION_STATUS_FAILED_OPERATION, + I2CAUX_TRANSACTION_STATUS_FAILED_INVALID_OPERATION, + I2CAUX_TRANSACTION_STATUS_FAILED_BUFFER_OVERFLOW, + I2CAUX_TRANSACTION_STATUS_FAILED_HPD_DISCON +}; + +struct i2caux_transaction_request { + enum i2caux_transaction_operation operation; + struct i2caux_transaction_payload payload; + enum i2caux_transaction_status status; +}; + +enum i2caux_engine_type { + I2CAUX_ENGINE_TYPE_UNKNOWN = (-1L), + I2CAUX_ENGINE_TYPE_AUX, + I2CAUX_ENGINE_TYPE_I2C_DDC_HW, + I2CAUX_ENGINE_TYPE_I2C_GENERIC_HW, + I2CAUX_ENGINE_TYPE_I2C_SW +}; + +enum i2c_default_speed { + I2CAUX_DEFAULT_I2C_HW_SPEED = 50, + I2CAUX_DEFAULT_I2C_SW_SPEED = 50 }; -struct engine; + +union aux_config; + struct aux_engine { - struct engine base; + uint32_t inst; + struct ddc *ddc; + struct dc_context *ctx; const struct aux_engine_funcs *funcs; /* following values are expressed in milliseconds */ uint32_t delay; uint32_t max_defer_write_retry; - bool acquire_reset; }; + struct read_command_context { uint8_t *buffer; uint32_t current_read_length; @@ -86,6 +112,7 @@ struct read_command_context { bool transaction_complete; bool operation_succeeded; }; + struct write_command_context { bool mot; @@ -110,4 +137,44 @@ struct write_command_context { bool transaction_complete; bool operation_succeeded; }; + + +struct aux_engine_funcs { + void (*destroy)( + struct aux_engine **ptr); + bool (*acquire_engine)( + struct aux_engine *engine); + void (*configure)( + struct aux_engine *engine, + union aux_config cfg); + void (*submit_channel_request)( + struct aux_engine *engine, + struct aux_request_transaction_data *request); + void (*process_channel_reply)( + struct aux_engine *engine, + struct aux_reply_transaction_data *reply); + int (*read_channel_reply)( + struct aux_engine *engine, + uint32_t size, + uint8_t *buffer, + uint8_t *reply_result, + uint32_t *sw_status); + enum aux_channel_operation_result (*get_channel_status)( + struct aux_engine *engine, + uint8_t *returned_bytes); + bool (*is_engine_available)(struct aux_engine *engine); + enum i2caux_engine_type (*get_engine_type)( + const struct aux_engine *engine); + bool (*acquire)( + struct aux_engine *engine, + struct ddc *ddc); + bool (*submit_request)( + struct aux_engine *engine, + struct i2caux_transaction_request *request, + bool middle_of_transaction); + void (*release_engine)( + struct aux_engine *engine); + void (*destroy_engine)( + struct aux_engine **engine); +}; #endif diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/engine.h b/drivers/gpu/drm/amd/display/dc/inc/hw/engine.h deleted file mode 100644 index 1f5476f..0000000 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/engine.h +++ /dev/null @@ -1,106 +0,0 @@ -/* - * 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_ENGINE_H__ -#define __DAL_ENGINE_H__ - -#include "dc_ddc_types.h" - -enum i2caux_transaction_operation { - I2CAUX_TRANSACTION_READ, - I2CAUX_TRANSACTION_WRITE -}; - -enum i2caux_transaction_address_space { - I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C = 1, - I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD -}; - -struct i2caux_transaction_payload { - enum i2caux_transaction_address_space address_space; - uint32_t address; - uint32_t length; - uint8_t *data; -}; - -enum i2caux_transaction_status { - I2CAUX_TRANSACTION_STATUS_UNKNOWN = (-1L), - I2CAUX_TRANSACTION_STATUS_SUCCEEDED, - I2CAUX_TRANSACTION_STATUS_FAILED_CHANNEL_BUSY, - I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT, - I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR, - I2CAUX_TRANSACTION_STATUS_FAILED_NACK, - I2CAUX_TRANSACTION_STATUS_FAILED_INCOMPLETE, - I2CAUX_TRANSACTION_STATUS_FAILED_OPERATION, - I2CAUX_TRANSACTION_STATUS_FAILED_INVALID_OPERATION, - I2CAUX_TRANSACTION_STATUS_FAILED_BUFFER_OVERFLOW, - I2CAUX_TRANSACTION_STATUS_FAILED_HPD_DISCON -}; - -struct i2caux_transaction_request { - enum i2caux_transaction_operation operation; - struct i2caux_transaction_payload payload; - enum i2caux_transaction_status status; -}; - -enum i2caux_engine_type { - I2CAUX_ENGINE_TYPE_UNKNOWN = (-1L), - I2CAUX_ENGINE_TYPE_AUX, - I2CAUX_ENGINE_TYPE_I2C_DDC_HW, - I2CAUX_ENGINE_TYPE_I2C_GENERIC_HW, - I2CAUX_ENGINE_TYPE_I2C_SW -}; - -enum i2c_default_speed { - I2CAUX_DEFAULT_I2C_HW_SPEED = 50, - I2CAUX_DEFAULT_I2C_SW_SPEED = 50 -}; - -struct engine; - -struct engine_funcs { - enum i2caux_engine_type (*get_engine_type)( - const struct engine *engine); - struct aux_engine* (*acquire)( - struct engine *engine, - struct ddc *ddc); - bool (*submit_request)( - struct engine *engine, - struct i2caux_transaction_request *request, - bool middle_of_transaction); - void (*release_engine)( - struct engine *engine); - void (*destroy_engine)( - struct engine **engine); -}; - -struct engine { - const struct engine_funcs *funcs; - uint32_t inst; - struct ddc *ddc; - struct dc_context *ctx; -}; - -#endif -- 2.7.4