drm/amd/display: Remove i2caux folder

[Why]
It is huge, unmaintainable, needlessly layered, and obsolete

[How]
Remove it.  All of it.  Also remove the i2caux struct in
dc_context and the code that created and destructed it
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/Makefile

@@ -23,7 +23,7 @@
 # Makefile for Display Core (dc) component.
 #
 
-DC_LIBS = basics bios calcs dce gpio i2caux irq virtual
+DC_LIBS = basics bios calcs dce gpio irq virtual
 
 ifdef CONFIG_DRM_AMD_DC_DCN1_0
 DC_LIBS += dcn10 dml

drivers/gpu/drm/amd/display/dc/core/dc.c

@@ -585,9 +585,6 @@ static void destruct(struct dc *dc)
 	if (dc->ctx->gpio_service)
 		dal_gpio_service_destroy(&dc->ctx->gpio_service);
 
-	if (dc->ctx->i2caux)
-		dal_i2caux_destroy(&dc->ctx->i2caux);
-
 	if (dc->ctx->created_bios)
 		dal_bios_parser_destroy(&dc->ctx->dc_bios);
 
@@ -709,14 +706,6 @@ static bool construct(struct dc *dc,
 		dc_ctx->created_bios = true;
 		}
 
-	/* Create I2C AUX */
-	dc_ctx->i2caux = dal_i2caux_create(dc_ctx);
-
-	if (!dc_ctx->i2caux) {
-		ASSERT_CRITICAL(false);
-		goto fail;
-	}
-
 	dc_ctx->perf_trace = dc_perf_trace_create();
 	if (!dc_ctx->perf_trace) {
 		ASSERT_CRITICAL(false);

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 "aux_engine.h"
 #include "dce/dce_aux.h"
 
 #define AUX_POWER_UP_WA_DELAY 500

drivers/gpu/drm/amd/display/dc/dc_types.h

@@ -97,7 +97,6 @@ struct dc_context {
 	struct dc_bios *dc_bios;
 	bool created_bios;
 	struct gpio_service *gpio_service;
-	struct i2caux *i2caux;
 	uint32_t dc_sink_id_count;
 	uint32_t dc_stream_id_count;
 	uint64_t fbc_gpu_addr;

drivers/gpu/drm/amd/display/dc/dce/dce_aux.h

@@ -25,7 +25,9 @@
 
 #ifndef __DAL_AUX_ENGINE_DCE110_H__
 #define __DAL_AUX_ENGINE_DCE110_H__
-#include "aux_engine.h"
+
+#include "i2caux_interface.h"
+#include "inc/hw/aux_engine.h"
 
 #define AUX_COMMON_REG_LIST(id)\
 	SRI(AUX_CONTROL, DP_AUX, id), \

drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.h

-/*
- * 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_AUX_ENGINE_H__
-#define __DAL_AUX_ENGINE_H__
-
-#include "dc_ddc_types.h"
-
-struct aux_engine;
-
-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);
-};
-
-struct aux_engine {
-	struct engine base;
-	const struct aux_engine_funcs *funcs;
-	/* following values are expressed in milliseconds */
-	uint32_t delay;
-	uint32_t max_defer_write_retry;
-
-	bool acquire_reset;
-};
-
-void dal_aux_engine_construct(
-	struct aux_engine *engine,
-	struct dc_context *ctx);
-
-void dal_aux_engine_destruct(
-	struct aux_engine *engine);
-bool dal_aux_engine_submit_request(
-	struct engine *ptr,
-	struct i2caux_transaction_request *request,
-	bool middle_of_transaction);
-bool dal_aux_engine_acquire(
-	struct engine *ptr,
-	struct ddc *ddc);
-enum i2caux_engine_type dal_aux_engine_get_engine_type(
-	const struct engine *engine);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.c

-/*
- * 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"
-
-#include "include/i2caux_interface.h"
-#include "../i2caux.h"
-#include "../engine.h"
-#include "../i2c_engine.h"
-#include "../i2c_sw_engine.h"
-#include "../i2c_hw_engine.h"
-
-#include "../dce110/aux_engine_dce110.h"
-#include "../dce110/i2c_hw_engine_dce110.h"
-#include "../dce110/i2caux_dce110.h"
-
-#include "dce/dce_10_0_d.h"
-#include "dce/dce_10_0_sh_mask.h"
-
-/* set register offset */
-#define SR(reg_name)\
-	.reg_name = mm ## reg_name
-
-/* set register offset with instance */
-#define SRI(reg_name, block, id)\
-	.reg_name = mm ## block ## id ## _ ## reg_name
-
-#define aux_regs(id)\
-[id] = {\
-	AUX_COMMON_REG_LIST(id), \
-	.AUX_RESET_MASK = 0 \
-}
-
-#define hw_engine_regs(id)\
-{\
-		I2C_HW_ENGINE_COMMON_REG_LIST(id) \
-}
-
-static const struct dce110_aux_registers dce100_aux_regs[] = {
-		aux_regs(0),
-		aux_regs(1),
-		aux_regs(2),
-		aux_regs(3),
-		aux_regs(4),
-		aux_regs(5),
-};
-
-static const struct dce110_i2c_hw_engine_registers dce100_hw_engine_regs[] = {
-		hw_engine_regs(1),
-		hw_engine_regs(2),
-		hw_engine_regs(3),
-		hw_engine_regs(4),
-		hw_engine_regs(5),
-		hw_engine_regs(6)
-};
-
-static const struct dce110_i2c_hw_engine_shift i2c_shift = {
-		I2C_COMMON_MASK_SH_LIST_DCE100(__SHIFT)
-};
-
-static const struct dce110_i2c_hw_engine_mask i2c_mask = {
-		I2C_COMMON_MASK_SH_LIST_DCE100(_MASK)
-};
-
-struct i2caux *dal_i2caux_dce100_create(
-	struct dc_context *ctx)
-{
-	struct i2caux_dce110 *i2caux_dce110 =
-		kzalloc(sizeof(struct i2caux_dce110), GFP_KERNEL);
-
-	if (!i2caux_dce110) {
-		ASSERT_CRITICAL(false);
-		return NULL;
-	}
-
-	dal_i2caux_dce110_construct(i2caux_dce110,
-				    ctx,
-				    ARRAY_SIZE(dce100_aux_regs),
-				    dce100_aux_regs,
-				    dce100_hw_engine_regs,
-				    &i2c_shift,
-				    &i2c_mask);
-	return &i2caux_dce110->base;
-}

drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.h

-/*
- * 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_AUX_DCE100_H__
-#define __DAL_I2C_AUX_DCE100_H__
-
-struct i2caux *dal_i2caux_dce100_create(
-	struct dc_context *ctx);
-
-#endif /* __DAL_I2C_AUX_DCE100_H__ */

drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.h

-/*
- * 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_AUX_ENGINE_DCE110_H__
-#define __DAL_AUX_ENGINE_DCE110_H__
-
-#include "../aux_engine.h"
-
-#define AUX_COMMON_REG_LIST(id)\
-	SRI(AUX_CONTROL, DP_AUX, id), \
-	SRI(AUX_ARB_CONTROL, DP_AUX, id), \
-	SRI(AUX_SW_DATA, DP_AUX, id), \
-	SRI(AUX_SW_CONTROL, DP_AUX, id), \
-	SRI(AUX_INTERRUPT_CONTROL, DP_AUX, id), \
-	SRI(AUX_SW_STATUS, DP_AUX, id), \
-	SR(AUXN_IMPCAL), \
-	SR(AUXP_IMPCAL)
-
-struct dce110_aux_registers {
-	uint32_t AUX_CONTROL;
-	uint32_t AUX_ARB_CONTROL;
-	uint32_t AUX_SW_DATA;
-	uint32_t AUX_SW_CONTROL;
-	uint32_t AUX_INTERRUPT_CONTROL;
-	uint32_t AUX_SW_STATUS;
-	uint32_t AUXN_IMPCAL;
-	uint32_t AUXP_IMPCAL;
-
-	uint32_t AUX_RESET_MASK;
-};
-
-struct aux_engine_dce110 {
-	struct aux_engine base;
-	const struct dce110_aux_registers *regs;
-	struct {
-		uint32_t aux_control;
-		uint32_t aux_arb_control;
-		uint32_t aux_sw_data;
-		uint32_t aux_sw_control;
-		uint32_t aux_interrupt_control;
-		uint32_t aux_sw_status;
-	} addr;
-	uint32_t timeout_period;
-};
-
-struct aux_engine_dce110_init_data {
-	uint32_t engine_id;
-	uint32_t timeout_period;
-	struct dc_context *ctx;
-	const struct dce110_aux_registers *regs;
-};
-
-struct aux_engine *dal_aux_engine_dce110_create(
-	const struct aux_engine_dce110_init_data *aux_init_data);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_hw_engine_dce110.h

-/*
- * 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_DCE110_H__
-#define __DAL_I2C_HW_ENGINE_DCE110_H__
-
-#define I2C_HW_ENGINE_COMMON_REG_LIST(id)\
-	SRI(SETUP, DC_I2C_DDC, id),\
-	SRI(SPEED, DC_I2C_DDC, id),\
-	SR(DC_I2C_ARBITRATION),\
-	SR(DC_I2C_CONTROL),\
-	SR(DC_I2C_SW_STATUS),\
-	SR(DC_I2C_TRANSACTION0),\
-	SR(DC_I2C_TRANSACTION1),\
-	SR(DC_I2C_TRANSACTION2),\
-	SR(DC_I2C_TRANSACTION3),\
-	SR(DC_I2C_DATA),\
-	SR(MICROSECOND_TIME_BASE_DIV)
-
-#define I2C_SF(reg_name, field_name, post_fix)\
-	.field_name = reg_name ## __ ## field_name ## post_fix
-
-#define I2C_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh)\
-	I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_ENABLE, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_TIME_LIMIT, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_DATA_DRIVE_EN, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_CLK_DRIVE_EN, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_DATA_DRIVE_SEL, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_INTRA_TRANSACTION_DELAY, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_INTRA_BYTE_DELAY, mask_sh),\
-	I2C_SF(DC_I2C_ARBITRATION, DC_I2C_SW_DONE_USING_I2C_REG, mask_sh),\
-	I2C_SF(DC_I2C_ARBITRATION, DC_I2C_NO_QUEUED_SW_GO, mask_sh),\
-	I2C_SF(DC_I2C_ARBITRATION, DC_I2C_SW_PRIORITY, mask_sh),\
-	I2C_SF(DC_I2C_CONTROL, DC_I2C_SOFT_RESET, mask_sh),\
-	I2C_SF(DC_I2C_CONTROL, DC_I2C_SW_STATUS_RESET, mask_sh),\
-	I2C_SF(DC_I2C_CONTROL, DC_I2C_GO, mask_sh),\
-	I2C_SF(DC_I2C_CONTROL, DC_I2C_SEND_RESET, mask_sh),\
-	I2C_SF(DC_I2C_CONTROL, DC_I2C_TRANSACTION_COUNT, mask_sh),\
-	I2C_SF(DC_I2C_CONTROL, DC_I2C_DDC_SELECT, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SPEED, DC_I2C_DDC1_PRESCALE, mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SPEED, DC_I2C_DDC1_THRESHOLD, mask_sh),\
-	I2C_SF(DC_I2C_SW_STATUS, DC_I2C_SW_STOPPED_ON_NACK, mask_sh),\
-	I2C_SF(DC_I2C_SW_STATUS, DC_I2C_SW_TIMEOUT, mask_sh),\
-	I2C_SF(DC_I2C_SW_STATUS, DC_I2C_SW_ABORTED, mask_sh),\
-	I2C_SF(DC_I2C_SW_STATUS, DC_I2C_SW_DONE, mask_sh),\
-	I2C_SF(DC_I2C_SW_STATUS, DC_I2C_SW_STATUS, mask_sh),\
-	I2C_SF(DC_I2C_TRANSACTION0, DC_I2C_STOP_ON_NACK0, mask_sh),\
-	I2C_SF(DC_I2C_TRANSACTION0, DC_I2C_START0, mask_sh),\
-	I2C_SF(DC_I2C_TRANSACTION0, DC_I2C_RW0, mask_sh),\
-	I2C_SF(DC_I2C_TRANSACTION0, DC_I2C_STOP0, mask_sh),\
-	I2C_SF(DC_I2C_TRANSACTION0, DC_I2C_COUNT0, mask_sh),\
-	I2C_SF(DC_I2C_DATA, DC_I2C_DATA_RW, mask_sh),\
-	I2C_SF(DC_I2C_DATA, DC_I2C_DATA, mask_sh),\
-	I2C_SF(DC_I2C_DATA, DC_I2C_INDEX, mask_sh),\
-	I2C_SF(DC_I2C_DATA, DC_I2C_INDEX_WRITE, mask_sh),\
-	I2C_SF(MICROSECOND_TIME_BASE_DIV, XTAL_REF_DIV, mask_sh)
-
-#define I2C_COMMON_MASK_SH_LIST_DCE100(mask_sh)\
-	I2C_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh)
-
-#define I2C_COMMON_MASK_SH_LIST_DCE110(mask_sh)\
-	I2C_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh),\
-	I2C_SF(DC_I2C_DDC1_SPEED, DC_I2C_DDC1_START_STOP_TIMING_CNTL, mask_sh)
-
-struct dce110_i2c_hw_engine_shift {
-	uint8_t DC_I2C_DDC1_ENABLE;
-	uint8_t DC_I2C_DDC1_TIME_LIMIT;
-	uint8_t DC_I2C_DDC1_DATA_DRIVE_EN;
-	uint8_t DC_I2C_DDC1_CLK_DRIVE_EN;
-	uint8_t DC_I2C_DDC1_DATA_DRIVE_SEL;
-	uint8_t DC_I2C_DDC1_INTRA_TRANSACTION_DELAY;
-	uint8_t DC_I2C_DDC1_INTRA_BYTE_DELAY;
-	uint8_t DC_I2C_SW_DONE_USING_I2C_REG;
-	uint8_t DC_I2C_NO_QUEUED_SW_GO;
-	uint8_t DC_I2C_SW_PRIORITY;
-	uint8_t DC_I2C_SOFT_RESET;
-	uint8_t DC_I2C_SW_STATUS_RESET;
-	uint8_t DC_I2C_GO;
-	uint8_t DC_I2C_SEND_RESET;
-	uint8_t DC_I2C_TRANSACTION_COUNT;
-	uint8_t DC_I2C_DDC_SELECT;
-	uint8_t DC_I2C_DDC1_PRESCALE;
-	uint8_t DC_I2C_DDC1_THRESHOLD;
-	uint8_t DC_I2C_DDC1_START_STOP_TIMING_CNTL;
-	uint8_t DC_I2C_SW_STOPPED_ON_NACK;
-	uint8_t DC_I2C_SW_TIMEOUT;
-	uint8_t DC_I2C_SW_ABORTED;
-	uint8_t DC_I2C_SW_DONE;
-	uint8_t DC_I2C_SW_STATUS;
-	uint8_t DC_I2C_STOP_ON_NACK0;
-	uint8_t DC_I2C_START0;
-	uint8_t DC_I2C_RW0;
-	uint8_t DC_I2C_STOP0;
-	uint8_t DC_I2C_COUNT0;
-	uint8_t DC_I2C_DATA_RW;
-	uint8_t DC_I2C_DATA;
-	uint8_t DC_I2C_INDEX;
-	uint8_t DC_I2C_INDEX_WRITE;
-	uint8_t XTAL_REF_DIV;
-};
-
-struct dce110_i2c_hw_engine_mask {
-	uint32_t DC_I2C_DDC1_ENABLE;
-	uint32_t DC_I2C_DDC1_TIME_LIMIT;
-	uint32_t DC_I2C_DDC1_DATA_DRIVE_EN;
-	uint32_t DC_I2C_DDC1_CLK_DRIVE_EN;
-	uint32_t DC_I2C_DDC1_DATA_DRIVE_SEL;
-	uint32_t DC_I2C_DDC1_INTRA_TRANSACTION_DELAY;
-	uint32_t DC_I2C_DDC1_INTRA_BYTE_DELAY;
-	uint32_t DC_I2C_SW_DONE_USING_I2C_REG;
-	uint32_t DC_I2C_NO_QUEUED_SW_GO;
-	uint32_t DC_I2C_SW_PRIORITY;
-	uint32_t DC_I2C_SOFT_RESET;
-	uint32_t DC_I2C_SW_STATUS_RESET;
-	uint32_t DC_I2C_GO;
-	uint32_t DC_I2C_SEND_RESET;
-	uint32_t DC_I2C_TRANSACTION_COUNT;
-	uint32_t DC_I2C_DDC_SELECT;
-	uint32_t DC_I2C_DDC1_PRESCALE;
-	uint32_t DC_I2C_DDC1_THRESHOLD;
-	uint32_t DC_I2C_DDC1_START_STOP_TIMING_CNTL;
-	uint32_t DC_I2C_SW_STOPPED_ON_NACK;
-	uint32_t DC_I2C_SW_TIMEOUT;
-	uint32_t DC_I2C_SW_ABORTED;
-	uint32_t DC_I2C_SW_DONE;
-	uint32_t DC_I2C_SW_STATUS;
-	uint32_t DC_I2C_STOP_ON_NACK0;
-	uint32_t DC_I2C_START0;
-	uint32_t DC_I2C_RW0;
-	uint32_t DC_I2C_STOP0;
-	uint32_t DC_I2C_COUNT0;
-	uint32_t DC_I2C_DATA_RW;
-	uint32_t DC_I2C_DATA;
-	uint32_t DC_I2C_INDEX;
-	uint32_t DC_I2C_INDEX_WRITE;
-	uint32_t XTAL_REF_DIV;
-};
-
-struct dce110_i2c_hw_engine_registers {
-	uint32_t SETUP;
-	uint32_t SPEED;
-	uint32_t DC_I2C_ARBITRATION;
-	uint32_t DC_I2C_CONTROL;
-	uint32_t DC_I2C_SW_STATUS;
-	uint32_t DC_I2C_TRANSACTION0;
-	uint32_t DC_I2C_TRANSACTION1;
-	uint32_t DC_I2C_TRANSACTION2;
-	uint32_t DC_I2C_TRANSACTION3;
-	uint32_t DC_I2C_DATA;
-	uint32_t MICROSECOND_TIME_BASE_DIV;
-};
-
-struct i2c_hw_engine_dce110 {
-	struct i2c_hw_engine base;
-	const struct dce110_i2c_hw_engine_registers *regs;
-	const struct dce110_i2c_hw_engine_shift *i2c_shift;
-	const struct dce110_i2c_hw_engine_mask *i2c_mask;
-	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 bytes used for write transaction in HW buffer
-	 * - this will be used as the index to read from*/
-	uint32_t buffer_used_write;
-	/* number of pending transactions (before GO) */
-	uint32_t transaction_count;
-	uint32_t engine_keep_power_up_count;
-	uint32_t i2_setup_time_limit;
-};
-
-struct i2c_hw_engine_dce110_create_arg {
-	uint32_t engine_id;
-	uint32_t reference_frequency;
-	uint32_t default_speed;
-	struct dc_context *ctx;
-	const struct dce110_i2c_hw_engine_registers *regs;
-	const struct dce110_i2c_hw_engine_shift *i2c_shift;
-	const struct dce110_i2c_hw_engine_mask *i2c_mask;
-};
-
-struct i2c_engine *dal_i2c_hw_engine_dce110_create(
-	const struct i2c_hw_engine_dce110_create_arg *arg);
-
-enum {
-	I2C_SETUP_TIME_LIMIT_DCE = 255,
-	I2C_SETUP_TIME_LIMIT_DCN = 3,
-	I2C_HW_BUFFER_SIZE = 538,
-	I2C_SEND_RESET_LENGTH_9 = 9,
-	I2C_SEND_RESET_LENGTH_10 = 10,
-};
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c

-/*
- * 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;
-}

drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.h

-/*
- * 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_SW_ENGINE_DCE110_H__
-#define __DAL_I2C_SW_ENGINE_DCE110_H__
-
-struct i2c_sw_engine_dce110 {
-	struct i2c_sw_engine base;
-	uint32_t engine_id;
-};
-
-struct i2c_sw_engine_dce110_create_arg {
-	uint32_t engine_id;
-	uint32_t default_speed;
-	struct dc_context *ctx;
-};
-
-struct i2c_engine *dal_i2c_sw_engine_dce110_create(
-	const struct i2c_sw_engine_dce110_create_arg *arg);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.c

-/*
- * 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 "../i2caux.h"
-#include "../engine.h"
-#include "../i2c_engine.h"
-#include "../i2c_sw_engine.h"
-#include "../i2c_hw_engine.h"
-
-/*
- * Header of this unit
- */
-#include "i2caux_dce110.h"
-
-#include "i2c_sw_engine_dce110.h"
-#include "i2c_hw_engine_dce110.h"
-#include "aux_engine_dce110.h"
-#include "../../dc.h"
-#include "dc_types.h"
-
-
-/*
- * Post-requisites: headers required by this unit
- */
-
-/*
- * This unit
- */
-/*cast pointer to struct i2caux TO pointer to struct i2caux_dce110*/
-#define FROM_I2C_AUX(ptr) \
-	container_of((ptr), struct i2caux_dce110, base)
-
-static void destruct(
-	struct i2caux_dce110 *i2caux_dce110)
-{
-	dal_i2caux_destruct(&i2caux_dce110->base);
-}
-
-static void destroy(
-	struct i2caux **i2c_engine)
-{
-	struct i2caux_dce110 *i2caux_dce110 = FROM_I2C_AUX(*i2c_engine);
-
-	destruct(i2caux_dce110);
-
-	kfree(i2caux_dce110);
-
-	*i2c_engine = NULL;
-}
-
-static struct i2c_engine *acquire_i2c_hw_engine(
-	struct i2caux *i2caux,
-	struct ddc *ddc)
-{
-	struct i2caux_dce110 *i2caux_dce110 = FROM_I2C_AUX(i2caux);
-
-	struct i2c_engine *engine = NULL;
-	/* generic hw engine is not used for EDID read
-	 * It may be needed for external i2c device, like thermal chip,
-	 * TODO will be implemented when needed.
-	 * check dce80 bool non_generic for generic hw engine;
-	 */
-
-	if (!ddc)
-		return NULL;
-
-	if (ddc->hw_info.hw_supported) {
-		enum gpio_ddc_line line = dal_ddc_get_line(ddc);
-
-		if (line < GPIO_DDC_LINE_COUNT)
-			engine = i2caux->i2c_hw_engines[line];
-	}
-
-	if (!engine)
-		return NULL;
-
-	if (!i2caux_dce110->i2c_hw_buffer_in_use &&
-		engine->base.funcs->acquire(&engine->base, ddc)) {
-		i2caux_dce110->i2c_hw_buffer_in_use = true;
-		return engine;
-	}
-
-	return NULL;
-}
-
-static void release_engine(
-	struct i2caux *i2caux,
-	struct engine *engine)
-{
-	struct i2caux_dce110 *i2caux_dce110 = FROM_I2C_AUX(i2caux);
-
-	if (engine->funcs->get_engine_type(engine) ==
-		I2CAUX_ENGINE_TYPE_I2C_DDC_HW)
-		i2caux_dce110->i2c_hw_buffer_in_use = false;
-
-	dal_i2caux_release_engine(i2caux, engine);
-}
-
-static const enum gpio_ddc_line hw_ddc_lines[] = {
-	GPIO_DDC_LINE_DDC1,
-	GPIO_DDC_LINE_DDC2,
-	GPIO_DDC_LINE_DDC3,
-	GPIO_DDC_LINE_DDC4,
-	GPIO_DDC_LINE_DDC5,
-	GPIO_DDC_LINE_DDC6,
-};
-
-static const enum gpio_ddc_line hw_aux_lines[] = {
-	GPIO_DDC_LINE_DDC1,
-	GPIO_DDC_LINE_DDC2,
-	GPIO_DDC_LINE_DDC3,
-	GPIO_DDC_LINE_DDC4,
-	GPIO_DDC_LINE_DDC5,
-	GPIO_DDC_LINE_DDC6,
-};
-
-/* function table */
-static const struct i2caux_funcs i2caux_funcs = {
-	.destroy = destroy,
-	.acquire_i2c_hw_engine = acquire_i2c_hw_engine,
-	.release_engine = release_engine,
-	.acquire_i2c_sw_engine = dal_i2caux_acquire_i2c_sw_engine,
-	.acquire_aux_engine = dal_i2caux_acquire_aux_engine,
-};
-
-#include "dce/dce_11_0_d.h"
-#include "dce/dce_11_0_sh_mask.h"
-
-/* set register offset */
-#define SR(reg_name)\
-	.reg_name = mm ## reg_name
-
-/* set register offset with instance */
-#define SRI(reg_name, block, id)\
-	.reg_name = mm ## block ## id ## _ ## reg_name
-
-#define aux_regs(id)\
-[id] = {\
-	AUX_COMMON_REG_LIST(id), \
-	.AUX_RESET_MASK = AUX_CONTROL__AUX_RESET_MASK \
-}
-
-#define hw_engine_regs(id)\
-{\
-		I2C_HW_ENGINE_COMMON_REG_LIST(id) \
-}
-
-static const struct dce110_aux_registers dce110_aux_regs[] = {
-		aux_regs(0),
-		aux_regs(1),
-		aux_regs(2),
-		aux_regs(3),
-		aux_regs(4),
-		aux_regs(5)
-};
-
-static const struct dce110_i2c_hw_engine_registers i2c_hw_engine_regs[] = {
-		hw_engine_regs(1),
-		hw_engine_regs(2),
-		hw_engine_regs(3),
-		hw_engine_regs(4),
-		hw_engine_regs(5),
-		hw_engine_regs(6)
-};
-
-static const struct dce110_i2c_hw_engine_shift i2c_shift = {
-		I2C_COMMON_MASK_SH_LIST_DCE110(__SHIFT)
-};
-
-static const struct dce110_i2c_hw_engine_mask i2c_mask = {
-		I2C_COMMON_MASK_SH_LIST_DCE110(_MASK)
-};
-
-void dal_i2caux_dce110_construct(
-	struct i2caux_dce110 *i2caux_dce110,
-	struct dc_context *ctx,
-	unsigned int num_i2caux_inst,
-	const struct dce110_aux_registers aux_regs[],
-	const struct dce110_i2c_hw_engine_registers i2c_hw_engine_regs[],
-	const struct dce110_i2c_hw_engine_shift *i2c_shift,
-	const struct dce110_i2c_hw_engine_mask *i2c_mask)
-{
-	uint32_t i = 0;
-	uint32_t reference_frequency = 0;
-	bool use_i2c_sw_engine = false;
-	struct i2caux *base = NULL;
-	/*TODO: For CZ bring up, if dal_i2caux_get_reference_clock
-	 * does not return 48KHz, we need hard coded for 48Khz.
-	 * Some BIOS setting incorrect cause this
-	 * For production, we always get value from BIOS*/
-	reference_frequency =
-		dal_i2caux_get_reference_clock(ctx->dc_bios) >> 1;
-
-	base = &i2caux_dce110->base;
-
-	dal_i2caux_construct(base, ctx);
-
-	i2caux_dce110->base.funcs = &i2caux_funcs;
-	i2caux_dce110->i2c_hw_buffer_in_use = false;
-	/* Create I2C engines (DDC lines per connector)
-	 * different I2C/AUX usage cases, DDC, Generic GPIO, AUX.
-	 */
-	do {
-		enum gpio_ddc_line line_id = hw_ddc_lines[i];
-
-		struct i2c_hw_engine_dce110_create_arg hw_arg_dce110;
-
-		if (use_i2c_sw_engine) {
-			struct i2c_sw_engine_dce110_create_arg sw_arg;
-
-			sw_arg.engine_id = i;
-			sw_arg.default_speed = base->default_i2c_sw_speed;
-			sw_arg.ctx = ctx;
-			base->i2c_sw_engines[line_id] =
-				dal_i2c_sw_engine_dce110_create(&sw_arg);
-		}
-
-		hw_arg_dce110.engine_id = i;
-		hw_arg_dce110.reference_frequency = reference_frequency;
-		hw_arg_dce110.default_speed = base->default_i2c_hw_speed;
-		hw_arg_dce110.ctx = ctx;
-		hw_arg_dce110.regs = &i2c_hw_engine_regs[i];
-		hw_arg_dce110.i2c_shift = i2c_shift;
-		hw_arg_dce110.i2c_mask = i2c_mask;
-
-		base->i2c_hw_engines[line_id] =
-			dal_i2c_hw_engine_dce110_create(&hw_arg_dce110);
-		if (base->i2c_hw_engines[line_id] != NULL) {
-			switch (ctx->dce_version) {
-			case DCN_VERSION_1_0:
-				base->i2c_hw_engines[line_id]->setup_limit =
-					I2C_SETUP_TIME_LIMIT_DCN;
-				base->i2c_hw_engines[line_id]->send_reset_length  = 0;
-			break;
-			default:
-				base->i2c_hw_engines[line_id]->setup_limit =
-					I2C_SETUP_TIME_LIMIT_DCE;
-				base->i2c_hw_engines[line_id]->send_reset_length  = 0;
-				break;
-			}
-		}
-		++i;
-	} while (i < num_i2caux_inst);
-
-	/* Create AUX engines for all lines which has assisted HW AUX
-	 * 'i' (loop counter) used as DDC/AUX engine_id */
-
-	i = 0;
-
-	do {
-		enum gpio_ddc_line line_id = hw_aux_lines[i];
-
-		struct aux_engine_dce110_init_data aux_init_data;
-
-		aux_init_data.engine_id = i;
-		aux_init_data.timeout_period = base->aux_timeout_period;
-		aux_init_data.ctx = ctx;
-		aux_init_data.regs = &aux_regs[i];
-
-		base->aux_engines[line_id] =
-			dal_aux_engine_dce110_create(&aux_init_data);
-
-		++i;
-	} while (i < num_i2caux_inst);
-
-	/*TODO Generic I2C SW and HW*/
-}
-
-/*
- * dal_i2caux_dce110_create
- *
- * @brief
- * public interface to allocate memory for DCE11 I2CAUX
- *
- * @param
- * struct adapter_service *as - [in]
- * struct dc_context *ctx - [in]
- *
- * @return
- * pointer to the base struct of DCE11 I2CAUX
- */
-struct i2caux *dal_i2caux_dce110_create(
-	struct dc_context *ctx)
-{
-	struct i2caux_dce110 *i2caux_dce110 =
-		kzalloc(sizeof(struct i2caux_dce110), GFP_KERNEL);
-
-	if (!i2caux_dce110) {
-		ASSERT_CRITICAL(false);
-		return NULL;
-	}
-
-	dal_i2caux_dce110_construct(i2caux_dce110,
-				    ctx,
-				    ARRAY_SIZE(dce110_aux_regs),
-				    dce110_aux_regs,
-				    i2c_hw_engine_regs,
-				    &i2c_shift,
-				    &i2c_mask);
-	return &i2caux_dce110->base;
-}

drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.h

-/*
- * 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_AUX_DCE110_H__
-#define __DAL_I2C_AUX_DCE110_H__
-
-#include "../i2caux.h"
-
-struct i2caux_dce110 {
-	struct i2caux base;
-	/* indicate the I2C HW circular buffer is in use */
-	bool i2c_hw_buffer_in_use;
-};
-
-struct dce110_aux_registers;
-struct dce110_i2c_hw_engine_registers;
-struct dce110_i2c_hw_engine_shift;
-struct dce110_i2c_hw_engine_mask;
-
-struct i2caux *dal_i2caux_dce110_create(
-	struct dc_context *ctx);
-
-void dal_i2caux_dce110_construct(
-	struct i2caux_dce110 *i2caux_dce110,
-	struct dc_context *ctx,
-	unsigned int num_i2caux_inst,
-	const struct dce110_aux_registers *aux_regs,
-	const struct dce110_i2c_hw_engine_registers *i2c_hw_engine_regs,
-	const struct dce110_i2c_hw_engine_shift *i2c_shift,
-	const struct dce110_i2c_hw_engine_mask *i2c_mask);
-
-#endif /* __DAL_I2C_AUX_DCE110_H__ */

drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.c

-/*
- * Copyright 2012-16 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"
-
-#include "include/i2caux_interface.h"
-#include "../i2caux.h"
-#include "../engine.h"
-#include "../i2c_engine.h"
-#include "../i2c_sw_engine.h"
-#include "../i2c_hw_engine.h"
-
-#include "../dce110/i2c_hw_engine_dce110.h"
-#include "../dce110/aux_engine_dce110.h"
-#include "../dce110/i2caux_dce110.h"
-
-#include "dce/dce_12_0_offset.h"
-#include "dce/dce_12_0_sh_mask.h"
-#include "soc15_hw_ip.h"
-#include "vega10_ip_offset.h"
-
-/* begin *********************
- * macros to expend register list macro defined in HW object header file */
-
-#define BASE_INNER(seg) \
-	DCE_BASE__INST0_SEG ## seg
-
-/* compile time expand base address. */
-#define BASE(seg) \
-	BASE_INNER(seg)
-
-#define SR(reg_name)\
-		.reg_name = BASE(mm ## reg_name ## _BASE_IDX) +  \
-					mm ## reg_name
-
-#define SRI(reg_name, block, id)\
-	.reg_name = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
-					mm ## block ## id ## _ ## reg_name
-/* macros to expend register list macro defined in HW object header file
- * end *********************/
-
-#define aux_regs(id)\
-[id] = {\
-	AUX_COMMON_REG_LIST(id), \
-	.AUX_RESET_MASK = DP_AUX0_AUX_CONTROL__AUX_RESET_MASK \
-}
-
-static const struct dce110_aux_registers dce120_aux_regs[] = {
-		aux_regs(0),
-		aux_regs(1),
-		aux_regs(2),
-		aux_regs(3),
-		aux_regs(4),
-		aux_regs(5),
-};
-
-#define hw_engine_regs(id)\
-{\
-		I2C_HW_ENGINE_COMMON_REG_LIST(id) \
-}
-
-static const struct dce110_i2c_hw_engine_registers dce120_hw_engine_regs[] = {
-		hw_engine_regs(1),
-		hw_engine_regs(2),
-		hw_engine_regs(3),
-		hw_engine_regs(4),
-		hw_engine_regs(5),
-		hw_engine_regs(6)
-};
-
-static const struct dce110_i2c_hw_engine_shift i2c_shift = {
-		I2C_COMMON_MASK_SH_LIST_DCE110(__SHIFT)
-};
-
-static const struct dce110_i2c_hw_engine_mask i2c_mask = {
-		I2C_COMMON_MASK_SH_LIST_DCE110(_MASK)
-};
-
-struct i2caux *dal_i2caux_dce120_create(
-	struct dc_context *ctx)
-{
-	struct i2caux_dce110 *i2caux_dce110 =
-		kzalloc(sizeof(struct i2caux_dce110), GFP_KERNEL);
-
-	if (!i2caux_dce110) {
-		ASSERT_CRITICAL(false);
-		return NULL;
-	}
-
-	dal_i2caux_dce110_construct(i2caux_dce110,
-				    ctx,
-				    ARRAY_SIZE(dce120_aux_regs),
-				    dce120_aux_regs,
-				    dce120_hw_engine_regs,
-				    &i2c_shift,
-				    &i2c_mask);
-	return &i2caux_dce110->base;
-}

drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.h

-/*
- * Copyright 2012-16 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_AUX_DCE120_H__
-#define __DAL_I2C_AUX_DCE120_H__
-
-struct i2caux *dal_i2caux_dce120_create(
-	struct dc_context *ctx);
-
-#endif /* __DAL_I2C_AUX_DCE120_H__ */

drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h

-/*
- * 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

drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.h

-/*
- * 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_SW_ENGINE_DCE80_H__
-#define __DAL_I2C_SW_ENGINE_DCE80_H__
-
-struct i2c_sw_engine_dce80 {
-	struct i2c_sw_engine base;
-	uint32_t engine_id;
-};
-
-struct i2c_sw_engine_dce80_create_arg {
-	uint32_t engine_id;
-	uint32_t default_speed;
-	struct dc_context *ctx;
-};
-
-struct i2c_engine *dal_i2c_sw_engine_dce80_create(
-	const struct i2c_sw_engine_dce80_create_arg *arg);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.c

-/*
- * 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 "../i2caux.h"
-
-/*
- * Header of this unit
- */
-
-#include "i2caux_dce80.h"
-
-/*
- * Post-requisites: headers required by this unit
- */
-
-#include "../engine.h"
-#include "../i2c_engine.h"
-#include "../i2c_sw_engine.h"
-#include "i2c_sw_engine_dce80.h"
-#include "../i2c_hw_engine.h"
-#include "i2c_hw_engine_dce80.h"
-#include "../i2c_generic_hw_engine.h"
-#include "../aux_engine.h"
-
-
-#include "../dce110/aux_engine_dce110.h"
-#include "../dce110/i2caux_dce110.h"
-
-#include "dce/dce_8_0_d.h"
-#include "dce/dce_8_0_sh_mask.h"
-
-
-/* set register offset */
-#define SR(reg_name)\
-	.reg_name = mm ## reg_name
-
-/* set register offset with instance */
-#define SRI(reg_name, block, id)\
-	.reg_name = mm ## block ## id ## _ ## reg_name
-
-#define aux_regs(id)\
-[id] = {\
-	AUX_COMMON_REG_LIST(id), \
-	.AUX_RESET_MASK = 0 \
-}
-
-static const struct dce110_aux_registers dce80_aux_regs[] = {
-		aux_regs(0),
-		aux_regs(1),
-		aux_regs(2),
-		aux_regs(3),
-		aux_regs(4),
-		aux_regs(5)
-};
-
-/*
- * This unit
- */
-
-#define FROM_I2C_AUX(ptr) \
-	container_of((ptr), struct i2caux_dce80, base)
-
-static void destruct(
-	struct i2caux_dce80 *i2caux_dce80)
-{
-	dal_i2caux_destruct(&i2caux_dce80->base);
-}
-
-static void destroy(
-	struct i2caux **i2c_engine)
-{
-	struct i2caux_dce80 *i2caux_dce80 = FROM_I2C_AUX(*i2c_engine);
-
-	destruct(i2caux_dce80);
-
-	kfree(i2caux_dce80);
-
-	*i2c_engine = NULL;
-}
-
-static struct i2c_engine *acquire_i2c_hw_engine(
-	struct i2caux *i2caux,
-	struct ddc *ddc)
-{
-	struct i2caux_dce80 *i2caux_dce80 = FROM_I2C_AUX(i2caux);
-
-	struct i2c_engine *engine = NULL;
-	bool non_generic;
-
-	if (!ddc)
-		return NULL;
-
-	if (ddc->hw_info.hw_supported) {
-		enum gpio_ddc_line line = dal_ddc_get_line(ddc);
-
-		if (line < GPIO_DDC_LINE_COUNT) {
-			non_generic = true;
-			engine = i2caux->i2c_hw_engines[line];
-		}
-	}
-
-	if (!engine) {
-		non_generic = false;
-		engine = i2caux->i2c_generic_hw_engine;
-	}
-
-	if (!engine)
-		return NULL;
-
-	if (non_generic) {
-		if (!i2caux_dce80->i2c_hw_buffer_in_use &&
-			engine->base.funcs->acquire(&engine->base, ddc)) {
-			i2caux_dce80->i2c_hw_buffer_in_use = true;
-			return engine;
-		}
-	} else {
-		if (engine->base.funcs->acquire(&engine->base, ddc))
-			return engine;
-	}
-
-	return NULL;
-}
-
-static void release_engine(
-	struct i2caux *i2caux,
-	struct engine *engine)
-{
-	if (engine->funcs->get_engine_type(engine) ==
-		I2CAUX_ENGINE_TYPE_I2C_DDC_HW)
-		FROM_I2C_AUX(i2caux)->i2c_hw_buffer_in_use = false;
-
-	dal_i2caux_release_engine(i2caux, engine);
-}
-
-static const enum gpio_ddc_line hw_ddc_lines[] = {
-	GPIO_DDC_LINE_DDC1,
-	GPIO_DDC_LINE_DDC2,
-	GPIO_DDC_LINE_DDC3,
-	GPIO_DDC_LINE_DDC4,
-	GPIO_DDC_LINE_DDC5,
-	GPIO_DDC_LINE_DDC6,
-	GPIO_DDC_LINE_DDC_VGA
-};
-
-static const enum gpio_ddc_line hw_aux_lines[] = {
-	GPIO_DDC_LINE_DDC1,
-	GPIO_DDC_LINE_DDC2,
-	GPIO_DDC_LINE_DDC3,
-	GPIO_DDC_LINE_DDC4,
-	GPIO_DDC_LINE_DDC5,
-	GPIO_DDC_LINE_DDC6
-};
-
-static const struct i2caux_funcs i2caux_funcs = {
-	.destroy = destroy,
-	.acquire_i2c_hw_engine = acquire_i2c_hw_engine,
-	.release_engine = release_engine,
-	.acquire_i2c_sw_engine = dal_i2caux_acquire_i2c_sw_engine,
-	.acquire_aux_engine = dal_i2caux_acquire_aux_engine,
-};
-
-static void construct(
-	struct i2caux_dce80 *i2caux_dce80,
-	struct dc_context *ctx)
-{
-	/* Entire family have I2C engine reference clock frequency
-	 * changed from XTALIN (27) to XTALIN/2 (13.5) */
-
-	struct i2caux *base = &i2caux_dce80->base;
-
-	uint32_t reference_frequency =
-		dal_i2caux_get_reference_clock(ctx->dc_bios) >> 1;
-
-	/*bool use_i2c_sw_engine = dal_adapter_service_is_feature_supported(as,
-		FEATURE_RESTORE_USAGE_I2C_SW_ENGINE);*/
-
-	/* Use SWI2C for dce8 currently, sicne we have bug with hwi2c */
-	bool use_i2c_sw_engine = true;
-
-	uint32_t i;
-
-	dal_i2caux_construct(base, ctx);
-
-	i2caux_dce80->base.funcs = &i2caux_funcs;
-	i2caux_dce80->i2c_hw_buffer_in_use = false;
-
-	/* Create I2C HW engines (HW + SW pairs)
-	 * for all lines which has assisted HW DDC
-	 * 'i' (loop counter) used as DDC/AUX engine_id */
-
-	i = 0;
-
-	do {
-		enum gpio_ddc_line line_id = hw_ddc_lines[i];
-
-		struct i2c_hw_engine_dce80_create_arg hw_arg;
-
-		if (use_i2c_sw_engine) {
-			struct i2c_sw_engine_dce80_create_arg sw_arg;
-
-			sw_arg.engine_id = i;
-			sw_arg.default_speed = base->default_i2c_sw_speed;
-			sw_arg.ctx = ctx;
-			base->i2c_sw_engines[line_id] =
-				dal_i2c_sw_engine_dce80_create(&sw_arg);
-		}
-
-		hw_arg.engine_id = i;
-		hw_arg.reference_frequency = reference_frequency;
-		hw_arg.default_speed = base->default_i2c_hw_speed;
-		hw_arg.ctx = ctx;
-
-		base->i2c_hw_engines[line_id] =
-			dal_i2c_hw_engine_dce80_create(&hw_arg);
-
-		++i;
-	} while (i < ARRAY_SIZE(hw_ddc_lines));
-
-	/* Create AUX engines for all lines which has assisted HW AUX
-	 * 'i' (loop counter) used as DDC/AUX engine_id */
-
-	i = 0;
-
-	do {
-		enum gpio_ddc_line line_id = hw_aux_lines[i];
-
-		struct aux_engine_dce110_init_data arg;
-
-		arg.engine_id = i;
-		arg.timeout_period = base->aux_timeout_period;
-		arg.ctx = ctx;
-		arg.regs = &dce80_aux_regs[i];
-
-		base->aux_engines[line_id] =
-			dal_aux_engine_dce110_create(&arg);
-
-		++i;
-	} while (i < ARRAY_SIZE(hw_aux_lines));
-
-	/* TODO Generic I2C SW and HW */
-}
-
-struct i2caux *dal_i2caux_dce80_create(
-	struct dc_context *ctx)
-{
-	struct i2caux_dce80 *i2caux_dce80 =
-		kzalloc(sizeof(struct i2caux_dce80), GFP_KERNEL);
-
-	if (!i2caux_dce80) {
-		BREAK_TO_DEBUGGER();
-		return NULL;
-	}
-
-	construct(i2caux_dce80, ctx);
-	return &i2caux_dce80->base;
-}

drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.h

-/*
- * 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_AUX_DCE80_H__
-#define __DAL_I2C_AUX_DCE80_H__
-
-struct i2caux_dce80 {
-	struct i2caux base;
-	/* indicate the I2C HW circular buffer is in use */
-	bool i2c_hw_buffer_in_use;
-};
-
-struct i2caux *dal_i2caux_dce80_create(
-	struct dc_context *ctx);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.c

-/*
- * 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"
-
-#include "include/i2caux_interface.h"
-#include "../i2caux.h"
-#include "../engine.h"
-#include "../i2c_engine.h"
-#include "../i2c_sw_engine.h"
-#include "../i2c_hw_engine.h"
-
-#include "../dce110/aux_engine_dce110.h"
-#include "../dce110/i2c_hw_engine_dce110.h"
-#include "../dce110/i2caux_dce110.h"
-
-#include "dcn/dcn_1_0_offset.h"
-#include "dcn/dcn_1_0_sh_mask.h"
-#include "soc15_hw_ip.h"
-#include "vega10_ip_offset.h"
-
-/* begin *********************
- * macros to expend register list macro defined in HW object header file */
-
-#define BASE_INNER(seg) \
-	DCE_BASE__INST0_SEG ## seg
-
-/* compile time expand base address. */
-#define BASE(seg) \
-	BASE_INNER(seg)
-
-#define SR(reg_name)\
-		.reg_name = BASE(mm ## reg_name ## _BASE_IDX) +  \
-					mm ## reg_name
-
-#define SRI(reg_name, block, id)\
-	.reg_name = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
-					mm ## block ## id ## _ ## reg_name
-/* macros to expend register list macro defined in HW object header file
- * end *********************/
-
-#define aux_regs(id)\
-[id] = {\
-	AUX_COMMON_REG_LIST(id), \
-	.AUX_RESET_MASK = DP_AUX0_AUX_CONTROL__AUX_RESET_MASK \
-}
-
-#define hw_engine_regs(id)\
-{\
-		I2C_HW_ENGINE_COMMON_REG_LIST(id) \
-}
-
-static const struct dce110_aux_registers dcn10_aux_regs[] = {
-		aux_regs(0),
-		aux_regs(1),
-		aux_regs(2),
-		aux_regs(3),
-		aux_regs(4),
-		aux_regs(5),
-};
-
-static const struct dce110_i2c_hw_engine_registers dcn10_hw_engine_regs[] = {
-		hw_engine_regs(1),
-		hw_engine_regs(2),
-		hw_engine_regs(3),
-		hw_engine_regs(4),
-		hw_engine_regs(5),
-		hw_engine_regs(6)
-};
-
-static const struct dce110_i2c_hw_engine_shift i2c_shift = {
-		I2C_COMMON_MASK_SH_LIST_DCE110(__SHIFT)
-};
-
-static const struct dce110_i2c_hw_engine_mask i2c_mask = {
-		I2C_COMMON_MASK_SH_LIST_DCE110(_MASK)
-};
-
-struct i2caux *dal_i2caux_dcn10_create(
-	struct dc_context *ctx)
-{
-	struct i2caux_dce110 *i2caux_dce110 =
-		kzalloc(sizeof(struct i2caux_dce110), GFP_KERNEL);
-
-	if (!i2caux_dce110) {
-		ASSERT_CRITICAL(false);
-		return NULL;
-	}
-
-	dal_i2caux_dce110_construct(i2caux_dce110,
-				    ctx,
-				    ARRAY_SIZE(dcn10_aux_regs),
-				    dcn10_aux_regs,
-				    dcn10_hw_engine_regs,
-				    &i2c_shift,
-				    &i2c_mask);
-	return &i2caux_dce110->base;
-}

drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.h

-/*
- * 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_AUX_DCN10_H__
-#define __DAL_I2C_AUX_DCN10_H__
-
-struct i2caux *dal_i2caux_dcn10_create(
-	struct dc_context *ctx);
-
-#endif /* __DAL_I2C_AUX_DCN10_H__ */

drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.c

-/*
- * Copyright 2012-16 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 "../i2caux.h"
-#include "../engine.h"
-#include "../i2c_engine.h"
-#include "../i2c_sw_engine.h"
-#include "../i2c_hw_engine.h"
-
-/*
- * Header of this unit
- */
-#include "i2caux_diag.h"
-
-/*
- * Post-requisites: headers required by this unit
- */
-
-/*
- * This unit
- */
-
-static void destruct(
-	struct i2caux *i2caux)
-{
-	dal_i2caux_destruct(i2caux);
-}
-
-static void destroy(
-	struct i2caux **i2c_engine)
-{
-	destruct(*i2c_engine);
-
-	kfree(*i2c_engine);
-
-	*i2c_engine = NULL;
-}
-
-/* function table */
-static const struct i2caux_funcs i2caux_funcs = {
-	.destroy = destroy,
-	.acquire_i2c_hw_engine = NULL,
-	.release_engine = NULL,
-	.acquire_i2c_sw_engine = NULL,
-	.acquire_aux_engine = NULL,
-};
-
-static void construct(
-	struct i2caux *i2caux,
-	struct dc_context *ctx)
-{
-	dal_i2caux_construct(i2caux, ctx);
-	i2caux->funcs = &i2caux_funcs;
-}
-
-struct i2caux *dal_i2caux_diag_fpga_create(
-	struct dc_context *ctx)
-{
-	struct i2caux *i2caux =	kzalloc(sizeof(struct i2caux),
-					       GFP_KERNEL);
-
-	if (!i2caux) {
-		ASSERT_CRITICAL(false);
-		return NULL;
-	}
-
-	construct(i2caux, ctx);
-	return i2caux;
-}

drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.h

-/*
- * Copyright 2012-16 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_AUX_DIAG_FPGA_H__
-#define __DAL_I2C_AUX_DIAG_FPGA_H__
-
-struct i2caux *dal_i2caux_diag_fpga_create(
-	struct dc_context *ctx);
-
-#endif /* __DAL_I2C_AUX_DIAG_FPGA_H__ */

drivers/gpu/drm/amd/display/dc/i2caux/engine.h

-/*
- * 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);
-	bool (*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);
-};
-
-struct engine {
-	const struct engine_funcs *funcs;
-	uint32_t inst;
-	struct ddc *ddc;
-	struct dc_context *ctx;
-};
-
-void dal_i2caux_construct_engine(
-	struct engine *engine,
-	struct dc_context *ctx);
-
-void dal_i2caux_destruct_engine(
-	struct engine *engine);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/engine_base.c

-/*
- * 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"
-
-/*
- * Header of this unit
- */
-
-#include "engine.h"
-
-void dal_i2caux_construct_engine(
-	struct engine *engine,
-	struct dc_context *ctx)
-{
-	engine->ddc = NULL;
-	engine->ctx = ctx;
-}
-
-void dal_i2caux_destruct_engine(
-	struct engine *engine)
-{
-	/* nothing to do */
-}
-

drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.c

-/*
- * 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"
-
-/*
- * Header of this unit
- */
-
-#include "i2c_engine.h"
-
-/*
- * Post-requisites: headers required by this unit
- */
-
-/*
- * This unit
- */
-
-#define FROM_ENGINE(ptr) \
-	container_of((ptr), struct i2c_engine, base)
-
-bool dal_i2c_engine_acquire(
-	struct engine *engine,
-	struct ddc *ddc_handle)
-{
-	struct i2c_engine *i2c_engine = FROM_ENGINE(engine);
-
-	uint32_t counter = 0;
-	bool result;
-
-	do {
-		result = i2c_engine->funcs->acquire_engine(
-			i2c_engine, ddc_handle);
-
-		if (result)
-			break;
-
-		/* i2c_engine is busy by VBios, lets wait and retry */
-
-		udelay(10);
-
-		++counter;
-	} while (counter < 2);
-
-	if (result) {
-		if (!i2c_engine->funcs->setup_engine(i2c_engine)) {
-			engine->funcs->release_engine(engine);
-			result = false;
-		}
-	}
-
-	return result;
-}
-
-bool dal_i2c_engine_setup_i2c_engine(
-	struct i2c_engine *engine)
-{
-	/* Derivative classes do not have to override this */
-
-	return true;
-}
-
-void dal_i2c_engine_submit_channel_request(
-	struct i2c_engine *engine,
-	struct i2c_request_transaction_data *request)
-{
-
-}
-
-void dal_i2c_engine_process_channel_reply(
-	struct i2c_engine *engine,
-	struct i2c_reply_transaction_data *reply)
-{
-
-}
-
-void dal_i2c_engine_construct(
-	struct i2c_engine *engine,
-	struct dc_context *ctx)
-{
-	dal_i2caux_construct_engine(&engine->base, ctx);
-	engine->timeout_delay = 0;
-}
-
-void dal_i2c_engine_destruct(
-	struct i2c_engine *engine)
-{
-	dal_i2caux_destruct_engine(&engine->base);
-}

drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.h

-/*
- * 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_ENGINE_H__
-#define __DAL_I2C_ENGINE_H__
-
-enum i2c_channel_operation_result {
-	I2C_CHANNEL_OPERATION_SUCCEEDED,
-	I2C_CHANNEL_OPERATION_FAILED,
-	I2C_CHANNEL_OPERATION_NOT_GRANTED,
-	I2C_CHANNEL_OPERATION_IS_BUSY,
-	I2C_CHANNEL_OPERATION_NO_HANDLE_PROVIDED,
-	I2C_CHANNEL_OPERATION_CHANNEL_IN_USE,
-	I2C_CHANNEL_OPERATION_CHANNEL_CLIENT_MAX_ALLOWED,
-	I2C_CHANNEL_OPERATION_ENGINE_BUSY,
-	I2C_CHANNEL_OPERATION_TIMEOUT,
-	I2C_CHANNEL_OPERATION_NO_RESPONSE,
-	I2C_CHANNEL_OPERATION_HW_REQUEST_I2C_BUS,
-	I2C_CHANNEL_OPERATION_WRONG_PARAMETER,
-	I2C_CHANNEL_OPERATION_OUT_NB_OF_RETRIES,
-	I2C_CHANNEL_OPERATION_NOT_STARTED
-};
-
-struct i2c_request_transaction_data {
-	enum i2caux_transaction_action action;
-	enum i2c_channel_operation_result status;
-	uint8_t address;
-	uint32_t length;
-	uint8_t *data;
-};
-
-struct i2c_reply_transaction_data {
-	uint32_t length;
-	uint8_t *data;
-};
-
-struct i2c_engine;
-
-struct i2c_engine_funcs {
-	void (*destroy)(
-		struct i2c_engine **ptr);
-	uint32_t (*get_speed)(
-		const struct i2c_engine *engine);
-	void (*set_speed)(
-		struct i2c_engine *engine,
-		uint32_t speed);
-	bool (*acquire_engine)(
-		struct i2c_engine *engine,
-		struct ddc *ddc);
-	bool (*setup_engine)(
-		struct i2c_engine *engine);
-	void (*submit_channel_request)(
-		struct i2c_engine *engine,
-		struct i2c_request_transaction_data *request);
-	void (*process_channel_reply)(
-		struct i2c_engine *engine,
-		struct i2c_reply_transaction_data *reply);
-	enum i2c_channel_operation_result (*get_channel_status)(
-		struct i2c_engine *engine,
-		uint8_t *returned_bytes);
-};
-
-struct i2c_engine {
-	struct engine base;
-	const struct i2c_engine_funcs *funcs;
-	uint32_t timeout_delay;
-	uint32_t setup_limit;
-	uint32_t send_reset_length;
-};
-
-void dal_i2c_engine_construct(
-	struct i2c_engine *engine,
-	struct dc_context *ctx);
-
-void dal_i2c_engine_destruct(
-	struct i2c_engine *engine);
-
-bool dal_i2c_engine_setup_i2c_engine(
-	struct i2c_engine *engine);
-
-void dal_i2c_engine_submit_channel_request(
-	struct i2c_engine *engine,
-	struct i2c_request_transaction_data *request);
-
-void dal_i2c_engine_process_channel_reply(
-	struct i2c_engine *engine,
-	struct i2c_reply_transaction_data *reply);
-
-bool dal_i2c_engine_acquire(
-	struct engine *ptr,
-	struct ddc *ddc_handle);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.c

-/*
- * 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_hw_engine.h"
-
-/*
- * Header of this unit
- */
-
-#include "i2c_generic_hw_engine.h"
-
-/*
- * Post-requisites: headers required by this unit
- */
-
-/*
- * This unit
- */
-
-/*
- * @brief
- * Cast 'struct i2c_hw_engine *'
- * to 'struct i2c_generic_hw_engine *'
- */
-#define FROM_I2C_HW_ENGINE(ptr) \
-	container_of((ptr), struct i2c_generic_hw_engine, base)
-
-/*
- * @brief
- * Cast 'struct i2c_engine *'
- * to 'struct i2c_generic_hw_engine *'
- */
-#define FROM_I2C_ENGINE(ptr) \
-	FROM_I2C_HW_ENGINE(container_of((ptr), struct i2c_hw_engine, base))
-
-/*
- * @brief
- * Cast 'struct engine *'
- * to 'struct i2c_generic_hw_engine *'
- */
-#define FROM_ENGINE(ptr) \
-	FROM_I2C_ENGINE(container_of((ptr), struct i2c_engine, base))
-
-enum i2caux_engine_type dal_i2c_generic_hw_engine_get_engine_type(
-	const struct engine *engine)
-{
-	return I2CAUX_ENGINE_TYPE_I2C_GENERIC_HW;
-}
-
-/*
- * @brief
- * Single transaction handling.
- * Since transaction may be bigger than HW buffer size,
- * it divides transaction to sub-transactions
- * and uses batch transaction feature of the engine.
- */
-bool dal_i2c_generic_hw_engine_submit_request(
-	struct engine *engine,
-	struct i2caux_transaction_request *i2caux_request,
-	bool middle_of_transaction)
-{
-	struct i2c_generic_hw_engine *hw_engine = FROM_ENGINE(engine);
-
-	struct i2c_hw_engine *base = &hw_engine->base;
-
-	uint32_t max_payload_size =
-		base->funcs->get_hw_buffer_available_size(base);
-
-	bool initial_stop_bit = !middle_of_transaction;
-
-	struct i2c_generic_transaction_attributes attributes;
-
-	enum i2c_channel_operation_result operation_result =
-		I2C_CHANNEL_OPERATION_FAILED;
-
-	bool result = false;
-
-	/* setup transaction initial properties */
-
-	uint8_t address = i2caux_request->payload.address;
-	uint8_t *current_payload = i2caux_request->payload.data;
-	uint32_t remaining_payload_size = i2caux_request->payload.length;
-
-	bool first_iteration = true;
-
-	if (i2caux_request->operation == I2CAUX_TRANSACTION_READ)
-		attributes.action = I2CAUX_TRANSACTION_ACTION_I2C_READ;
-	else if (i2caux_request->operation == I2CAUX_TRANSACTION_WRITE)
-		attributes.action = I2CAUX_TRANSACTION_ACTION_I2C_WRITE;
-	else {
-		i2caux_request->status =
-			I2CAUX_TRANSACTION_STATUS_FAILED_INVALID_OPERATION;
-		return false;
-	}
-
-	/* Do batch transaction.
-	 * Divide read/write data into payloads which fit HW buffer size.
-	 * 1. Single transaction:
-	 *    start_bit = 1, stop_bit depends on session state, ack_on_read = 0;
-	 * 2. Start of batch transaction:
-	 *    start_bit = 1, stop_bit = 0, ack_on_read = 1;
-	 * 3. Middle of batch transaction:
-	 *    start_bit = 0, stop_bit = 0, ack_on_read = 1;
-	 * 4. End of batch transaction:
-	 *    start_bit = 0, stop_bit depends on session state, ack_on_read = 0.
-	 * Session stop bit is set if 'middle_of_transaction' = 0. */
-
-	while (remaining_payload_size) {
-		uint32_t current_transaction_size;
-		uint32_t current_payload_size;
-
-		bool last_iteration;
-		bool stop_bit;
-
-		/* Calculate current transaction size and payload size.
-		 * Transaction size = total number of bytes in transaction,
-		 * including slave's address;
-		 * Payload size = number of data bytes in transaction. */
-
-		if (first_iteration) {
-			/* In the first sub-transaction we send slave's address
-			 * thus we need to reserve one byte for it */
-			current_transaction_size =
-			(remaining_payload_size > max_payload_size - 1) ?
-				max_payload_size :
-				remaining_payload_size + 1;
-
-			current_payload_size = current_transaction_size - 1;
-		} else {
-			/* Second and further sub-transactions will have
-			 * entire buffer reserved for data */
-			current_transaction_size =
-				(remaining_payload_size > max_payload_size) ?
-				max_payload_size :
-				remaining_payload_size;
-
-			current_payload_size = current_transaction_size;
-		}
-
-		last_iteration =
-			(remaining_payload_size == current_payload_size);
-
-		stop_bit = last_iteration ? initial_stop_bit : false;
-
-		/* write slave device address */
-
-		if (first_iteration)
-			hw_engine->funcs->write_address(hw_engine, address);
-
-		/* write current portion of data, if requested */
-
-		if (i2caux_request->operation == I2CAUX_TRANSACTION_WRITE)
-			hw_engine->funcs->write_data(
-				hw_engine,
-				current_payload,
-				current_payload_size);
-
-		/* execute transaction */
-
-		attributes.start_bit = first_iteration;
-		attributes.stop_bit = stop_bit;
-		attributes.last_read = last_iteration;
-		attributes.transaction_size = current_transaction_size;
-
-		hw_engine->funcs->execute_transaction(hw_engine, &attributes);
-
-		/* wait until transaction is processed; if it fails - quit */
-
-		operation_result = base->funcs->wait_on_operation_result(
-			base,
-			base->funcs->get_transaction_timeout(
-				base, current_transaction_size),
-			I2C_CHANNEL_OPERATION_ENGINE_BUSY);
-
-		if (operation_result != I2C_CHANNEL_OPERATION_SUCCEEDED)
-			break;
-
-		/* read current portion of data, if requested */
-
-		/* the read offset should be 1 for first sub-transaction,
-		 * and 0 for any next one */
-
-		if (i2caux_request->operation == I2CAUX_TRANSACTION_READ)
-			hw_engine->funcs->read_data(hw_engine, current_payload,
-				current_payload_size, first_iteration ? 1 : 0);
-
-		/* update loop variables */
-
-		first_iteration = false;
-		current_payload += current_payload_size;
-		remaining_payload_size -= current_payload_size;
-	}
-
-	/* update transaction status */
-
-	switch (operation_result) {
-	case I2C_CHANNEL_OPERATION_SUCCEEDED:
-		i2caux_request->status =
-			I2CAUX_TRANSACTION_STATUS_SUCCEEDED;
-		result = true;
-	break;
-	case I2C_CHANNEL_OPERATION_NO_RESPONSE:
-		i2caux_request->status =
-			I2CAUX_TRANSACTION_STATUS_FAILED_NACK;
-	break;
-	case I2C_CHANNEL_OPERATION_TIMEOUT:
-		i2caux_request->status =
-			I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT;
-	break;
-	case I2C_CHANNEL_OPERATION_FAILED:
-		i2caux_request->status =
-			I2CAUX_TRANSACTION_STATUS_FAILED_INCOMPLETE;
-	break;
-	default:
-		i2caux_request->status =
-			I2CAUX_TRANSACTION_STATUS_FAILED_OPERATION;
-	}
-
-	return result;
-}
-
-/*
- * @brief
- * Returns number of microseconds to wait until timeout to be considered
- */
-uint32_t dal_i2c_generic_hw_engine_get_transaction_timeout(
-	const struct i2c_hw_engine *engine,
-	uint32_t length)
-{
-	const struct i2c_engine *base = &engine->base;
-
-	uint32_t speed = base->funcs->get_speed(base);
-
-	if (!speed)
-		return 0;
-
-	/* total timeout = period_timeout * (start + data bits count + stop) */
-
-	return ((1000 * TRANSACTION_TIMEOUT_IN_I2C_CLOCKS) / speed) *
-		(1 + (length << 3) + 1);
-}
-
-void dal_i2c_generic_hw_engine_construct(
-	struct i2c_generic_hw_engine *engine,
-	struct dc_context *ctx)
-{
-	dal_i2c_hw_engine_construct(&engine->base, ctx);
-}
-
-void dal_i2c_generic_hw_engine_destruct(
-	struct i2c_generic_hw_engine *engine)
-{
-	dal_i2c_hw_engine_destruct(&engine->base);
-}

drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.h

-/*
- * 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_GENERIC_HW_ENGINE_H__
-#define __DAL_I2C_GENERIC_HW_ENGINE_H__
-
-struct i2c_generic_transaction_attributes {
-	enum i2caux_transaction_action action;
-	uint32_t transaction_size;
-	bool start_bit;
-	bool stop_bit;
-	bool last_read;
-};
-
-struct i2c_generic_hw_engine;
-
-struct i2c_generic_hw_engine_funcs {
-	void (*write_address)(
-		struct i2c_generic_hw_engine *engine,
-		uint8_t address);
-	void (*write_data)(
-		struct i2c_generic_hw_engine *engine,
-		const uint8_t *buffer,
-		uint32_t length);
-	void (*read_data)(
-		struct i2c_generic_hw_engine *engine,
-		uint8_t *buffer,
-		uint32_t length,
-		uint32_t offset);
-	void (*execute_transaction)(
-		struct i2c_generic_hw_engine *engine,
-		struct i2c_generic_transaction_attributes *attributes);
-};
-
-struct i2c_generic_hw_engine {
-	struct i2c_hw_engine base;
-	const struct i2c_generic_hw_engine_funcs *funcs;
-};
-
-void dal_i2c_generic_hw_engine_construct(
-	struct i2c_generic_hw_engine *engine,
-	struct dc_context *ctx);
-
-void dal_i2c_generic_hw_engine_destruct(
-	struct i2c_generic_hw_engine *engine);
-enum i2caux_engine_type dal_i2c_generic_hw_engine_get_engine_type(
-	const struct engine *engine);
-bool dal_i2c_generic_hw_engine_submit_request(
-	struct engine *ptr,
-	struct i2caux_transaction_request *i2caux_request,
-	bool middle_of_transaction);
-uint32_t dal_i2c_generic_hw_engine_get_transaction_timeout(
-	const struct i2c_hw_engine *engine,
-	uint32_t length);
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.h

-/*
- * 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_H__
-#define __DAL_I2C_HW_ENGINE_H__
-
-enum {
-	TRANSACTION_TIMEOUT_IN_I2C_CLOCKS = 32
-};
-
-struct i2c_hw_engine;
-
-struct i2c_hw_engine_funcs {
-	uint32_t (*get_hw_buffer_available_size)(
-		const struct i2c_hw_engine *engine);
-	enum i2c_channel_operation_result (*wait_on_operation_result)(
-		struct i2c_hw_engine *engine,
-		uint32_t timeout,
-		enum i2c_channel_operation_result expected_result);
-	uint32_t (*get_transaction_timeout)(
-		const struct i2c_hw_engine *engine,
-		uint32_t length);
-};
-
-struct i2c_hw_engine {
-	struct i2c_engine base;
-	const struct i2c_hw_engine_funcs *funcs;
-
-	/* Values below are in kilohertz */
-	uint32_t original_speed;
-	uint32_t default_speed;
-};
-
-void dal_i2c_hw_engine_construct(
-	struct i2c_hw_engine *engine,
-	struct dc_context *ctx);
-
-void dal_i2c_hw_engine_destruct(
-	struct i2c_hw_engine *engine);
-
-enum i2c_channel_operation_result dal_i2c_hw_engine_wait_on_operation_result(
-	struct i2c_hw_engine *engine,
-	uint32_t timeout,
-	enum i2c_channel_operation_result expected_result);
-
-bool dal_i2c_hw_engine_acquire_engine(
-	struct i2c_engine *engine,
-	struct ddc *ddc);
-
-bool dal_i2c_hw_engine_submit_request(
-	struct engine *ptr,
-	struct i2caux_transaction_request *i2caux_request,
-	bool middle_of_transaction);
-
-enum i2caux_engine_type dal_i2c_hw_engine_get_engine_type(
-	const struct engine *engine);
-
-#endif

drivers/gpu/drm/amd/display/dc/i2caux/i2c_sw_engine.h

-/*
- * 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_SW_ENGINE_H__
-#define __DAL_I2C_SW_ENGINE_H__
-
-enum {
-	I2C_SW_RETRIES = 10,
-	I2C_SW_SCL_READ_RETRIES = 128,
-	/* following value is in microseconds */
-	I2C_SW_TIMEOUT_DELAY = 3000
-};
-
-struct i2c_sw_engine;
-
-struct i2c_sw_engine {
-	struct i2c_engine base;
-	uint32_t clock_delay;
-	/* Values below are in KHz */
-	uint32_t speed;
-	uint32_t default_speed;
-};
-
-struct i2c_sw_engine_create_arg {
-	uint32_t default_speed;
-	struct dc_context *ctx;
-};
-
-void dal_i2c_sw_engine_construct(
-	struct i2c_sw_engine *engine,
-	const struct i2c_sw_engine_create_arg *arg);
-
-bool dal_i2caux_i2c_sw_engine_acquire_engine(
-	struct i2c_engine *engine,
-	struct ddc *ddc_handle);
-
-void dal_i2c_sw_engine_destruct(
-	struct i2c_sw_engine *engine);
-
-struct i2c_engine *dal_i2c_sw_engine_create(
-	const struct i2c_sw_engine_create_arg *arg);
-enum i2caux_engine_type dal_i2c_sw_engine_get_engine_type(
-	const struct engine *engine);
-bool dal_i2c_sw_engine_submit_request(
-	struct engine *ptr,
-	struct i2caux_transaction_request *i2caux_request,
-	bool middle_of_transaction);
-uint32_t dal_i2c_sw_engine_get_speed(
-	const struct i2c_engine *engine);
-void dal_i2c_sw_engine_set_speed(
-	struct i2c_engine *ptr,
-	uint32_t speed);
-void dal_i2c_sw_engine_submit_channel_request(
-	struct i2c_engine *ptr,
-	struct i2c_request_transaction_data *req);
-enum i2c_channel_operation_result dal_i2c_sw_engine_get_channel_status(
-	struct i2c_engine *engine,
-	uint8_t *returned_bytes);
-#endif

drivers/gpu/drm/amd/display/include/i2caux_interface.h

@@ -76,27 +76,4 @@ union aux_config {
 	uint32_t raw;
 };
 
-struct i2caux;
-
-struct i2caux *dal_i2caux_create(
-	struct dc_context *ctx);
-
-bool dal_i2caux_submit_i2c_command(
-	struct i2caux *i2caux,
-	struct ddc *ddc,
-	struct i2c_command *cmd);
-
-bool dal_i2caux_submit_aux_command(
-	struct i2caux *i2caux,
-	struct ddc *ddc,
-	struct aux_command *cmd);
-
-void dal_i2caux_configure_aux(
-	struct i2caux *i2caux,
-	struct ddc *ddc,
-	union aux_config cfg);
-
-void dal_i2caux_destroy(
-	struct i2caux **ptr);
-
 #endif