drm/amd/display: flatten aux_engine and engine
authorBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Thu, 28 Jun 2018 21:50:05 +0000 (17:50 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 27 Jul 2018 14:07:42 +0000 (09:07 -0500)
[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 <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 files changed:
drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c
drivers/gpu/drm/amd/display/dc/dce/dce_aux.c
drivers/gpu/drm/amd/display/dc/dce/dce_aux.h
drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c
drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
drivers/gpu/drm/amd/display/dc/inc/core_types.h
drivers/gpu/drm/amd/display/dc/inc/hw/aux_engine.h
drivers/gpu/drm/amd/display/dc/inc/hw/engine.h [deleted file]

index 4019fe07d291e05644943e20dea267d0eea8f0ca..8def0d9fa0ff0586343a13d08a9bea59c1a2da32 100644 (file)
@@ -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;
 }
 
index b28e2120767e2d1aa858f80fc27c30aa6542b5fb..3f5b2e6f7553f56488412b03be5a900f529a935e 100644 (file)
 #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;
 
index c6b2aec2e367eb854689d6e00dd38fd6d83e16ea..f7caab85dc801d75d260cf5d31aa2d65cc04718a 100644 (file)
@@ -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
index c34c9531915ef249c4aa226a40e7192eda0edb8a..fd2bdae4dcec71f30680967ecc7b2f241a9be221 100644 (file)
@@ -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(
index 4a665a29191bc333ff488fd2eb50e52e245b36dd..e5e9e92521e91fab5afd921d245a575802a8b330 100644 (file)
@@ -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(
index caf90ae2cbb04cf9428b10f2a0cbb0bb26bcf3f0..84a05ff2d67489fe9f2877b6f60817f7414867f1 100644 (file)
@@ -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(
index f7d02f2190d3ea753025b8c6362758250468160e..61d8e22d23c9542af476bbcc5e0c0519ec398226 100644 (file)
@@ -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 = {
index 6fb33ad2d3c802436dda652f1ce36ca393e9cf0c..dc9f3e9afc338bcb08d16a3b16deb496800e05a1 100644 (file)
@@ -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(
index cd8c22839227a2e4958003378f2718ce2b92e8a1..5d169f07d745ff8e107286235627c17358cc6fb7 100644 (file)
@@ -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)
index 0fa385872ed3329f8311c87be6013184b97da2e1..9f33306f9014f08139ef908ea677b33b0db3f367 100644 (file)
@@ -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;
index 06d7e5d4cf21d899bb208d3f44682a34ca68830e..e79cd4e92919405c4f551e5461aa840c878484a3 100644 (file)
 #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 (file)
index 1f5476f..0000000
+++ /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