1 files changed, 0 insertions, 505 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c
deleted file mode 100644
index 59c3ed43d609..000000000000
--- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c
+++ /dev/null
@@ -1,505 +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
- *
- */
-
-#include "dm_services.h"
-#include "dm_event_log.h"
-
-/*
- * Pre-requisites: headers required by header of this unit
- */
-#include "include/i2caux_interface.h"
-#include "../engine.h"
-#include "../aux_engine.h"
-
-/*
- * Header of this unit
- */
-
-#include "aux_engine_dce110.h"
-
-/*
- * Post-requisites: headers required by this unit
- */
-#include "dce/dce_11_0_sh_mask.h"
-
-#define CTX \
-	aux110->base.base.ctx
-#define REG(reg_name)\
-	(aux110->regs->reg_name)
-#include "reg_helper.h"
-
-/*
- * This unit
- */
-
-/*
- * @brief
- * Cast 'struct aux_engine *'
- * to 'struct aux_engine_dce110 *'
- */
-#define FROM_AUX_ENGINE(ptr) \
-	container_of((ptr), struct aux_engine_dce110, base)
-
-/*
- * @brief
- * Cast 'struct engine *'
- * to 'struct aux_engine_dce110 *'
- */
-#define FROM_ENGINE(ptr) \
-	FROM_AUX_ENGINE(container_of((ptr), struct aux_engine, base))
-
-static void release_engine(
-	struct engine *engine)
-{
-	struct aux_engine_dce110 *aux110 = FROM_ENGINE(engine);
-
-	REG_UPDATE(AUX_ARB_CONTROL, AUX_SW_DONE_USING_AUX_REG, 1);
-}
-
-static void destruct(
-	struct aux_engine_dce110 *engine);
-
-static void destroy(
-	struct aux_engine **aux_engine)
-{
-	struct aux_engine_dce110 *engine = FROM_AUX_ENGINE(*aux_engine);
-
-	destruct(engine);
-
-	kfree(engine);
-
-	*aux_engine = NULL;
-}
-
-#define SW_CAN_ACCESS_AUX 1
-#define DMCU_CAN_ACCESS_AUX 2
-
-static bool is_engine_available(
-	struct aux_engine *engine)
-{
-	struct aux_engine_dce110 *aux110 = FROM_AUX_ENGINE(engine);
-
-	uint32_t value = REG_READ(AUX_ARB_CONTROL);
-	uint32_t field = get_reg_field_value(
-			value,
-			AUX_ARB_CONTROL,
-			AUX_REG_RW_CNTL_STATUS);
-
-	return (field != DMCU_CAN_ACCESS_AUX);
-}
-static bool acquire_engine(
-	struct aux_engine *engine)
-{
-	struct aux_engine_dce110 *aux110 = FROM_AUX_ENGINE(engine);
-
-	uint32_t value = REG_READ(AUX_ARB_CONTROL);
-	uint32_t field = get_reg_field_value(
-			value,
-			AUX_ARB_CONTROL,
-			AUX_REG_RW_CNTL_STATUS);
-	if (field == DMCU_CAN_ACCESS_AUX)
-	 return false;
-	/* enable AUX before request SW to access AUX */
-	value = REG_READ(AUX_CONTROL);
-	field = get_reg_field_value(value,
-				AUX_CONTROL,
-				AUX_EN);
-
-	if (field == 0) {
-		set_reg_field_value(
-				value,
-				1,
-				AUX_CONTROL,
-				AUX_EN);
-
-		if (REG(AUX_RESET_MASK)) {
-			/*DP_AUX block as part of the enable sequence*/
-			set_reg_field_value(
-				value,
-				1,
-				AUX_CONTROL,
-				AUX_RESET);
-		}
-
-		REG_WRITE(AUX_CONTROL, value);
-
-		if (REG(AUX_RESET_MASK)) {
-			/*poll HW to make sure reset it done*/
-
-			REG_WAIT(AUX_CONTROL, AUX_RESET_DONE, 1,
-					1, 11);
-
-			set_reg_field_value(
-				value,
-				0,
-				AUX_CONTROL,
-				AUX_RESET);
-
-			REG_WRITE(AUX_CONTROL, value);
-
-			REG_WAIT(AUX_CONTROL, AUX_RESET_DONE, 0,
-					1, 11);
-		}
-	} /*if (field)*/
-
-	/* request SW to access AUX */
-	REG_UPDATE(AUX_ARB_CONTROL, AUX_SW_USE_AUX_REG_REQ, 1);
-
-	value = REG_READ(AUX_ARB_CONTROL);
-	field = get_reg_field_value(
-			value,
-			AUX_ARB_CONTROL,
-			AUX_REG_RW_CNTL_STATUS);
-
-	return (field == SW_CAN_ACCESS_AUX);
-}
-
-#define COMPOSE_AUX_SW_DATA_16_20(command, address) \
-	((command) | ((0xF0000 & (address)) >> 16))
-
-#define COMPOSE_AUX_SW_DATA_8_15(address) \
-	((0xFF00 & (address)) >> 8)
-
-#define COMPOSE_AUX_SW_DATA_0_7(address) \
-	(0xFF & (address))
-
-static void submit_channel_request(
-	struct aux_engine *engine,
-	struct aux_request_transaction_data *request)
-{
-	struct aux_engine_dce110 *aux110 = FROM_AUX_ENGINE(engine);
-	uint32_t value;
-	uint32_t length;
-
-	bool is_write =
-		((request->type == AUX_TRANSACTION_TYPE_DP) &&
-		 (request->action == I2CAUX_TRANSACTION_ACTION_DP_WRITE)) ||
-		((request->type == AUX_TRANSACTION_TYPE_I2C) &&
-		((request->action == I2CAUX_TRANSACTION_ACTION_I2C_WRITE) ||
-		 (request->action == I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT)));
-	if (REG(AUXN_IMPCAL)) {
-		/* clear_aux_error */
-		REG_UPDATE_SEQ(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK,
-				1,
-				0);
-
-		REG_UPDATE_SEQ(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK,
-				1,
-				0);
-
-		/* force_default_calibrate */
-		REG_UPDATE_1BY1_2(AUXN_IMPCAL,
-				AUXN_IMPCAL_ENABLE, 1,
-				AUXN_IMPCAL_OVERRIDE_ENABLE, 0);
-
-		/* bug? why AUXN update EN and OVERRIDE_EN 1 by 1 while AUX P toggles OVERRIDE? */
-
-		REG_UPDATE_SEQ(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE,
-				1,
-				0);
-	}
-	/* set the delay and the number of bytes to write */
-
-	/* The length include
-	 * the 4 bit header and the 20 bit address
-	 * (that is 3 byte).
-	 * If the requested length is non zero this means
-	 * an addition byte specifying the length is required. */
-
-	length = request->length ? 4 : 3;
-	if (is_write)
-		length += request->length;
-
-	REG_UPDATE_2(AUX_SW_CONTROL,
-			AUX_SW_START_DELAY, request->delay,
-			AUX_SW_WR_BYTES, length);
-
-	/* program action and address and payload data (if 'is_write') */
-	value = REG_UPDATE_4(AUX_SW_DATA,
-			AUX_SW_INDEX, 0,
-			AUX_SW_DATA_RW, 0,
-			AUX_SW_AUTOINCREMENT_DISABLE, 1,
-			AUX_SW_DATA, COMPOSE_AUX_SW_DATA_16_20(request->action, request->address));
-
-	value = REG_SET_2(AUX_SW_DATA, value,
-			AUX_SW_AUTOINCREMENT_DISABLE, 0,
-			AUX_SW_DATA, COMPOSE_AUX_SW_DATA_8_15(request->address));
-
-	value = REG_SET(AUX_SW_DATA, value,
-			AUX_SW_DATA, COMPOSE_AUX_SW_DATA_0_7(request->address));
-
-	if (request->length) {
-		value = REG_SET(AUX_SW_DATA, value,
-				AUX_SW_DATA, request->length - 1);
-	}
-
-	if (is_write) {
-		/* Load the HW buffer with the Data to be sent.
-		 * This is relevant for write operation.
-		 * For read, the data recived data will be
-		 * processed in process_channel_reply(). */
-		uint32_t i = 0;
-
-		while (i < request->length) {
-			value = REG_SET(AUX_SW_DATA, value,
-					AUX_SW_DATA, request->data[i]);
-
-			++i;
-		}
-	}
-
-	REG_UPDATE(AUX_INTERRUPT_CONTROL, AUX_SW_DONE_ACK, 1);
-	REG_WAIT(AUX_SW_STATUS, AUX_SW_DONE, 0,
-				10, aux110->timeout_period/10);
-	REG_UPDATE(AUX_SW_CONTROL, AUX_SW_GO, 1);
-	EVENT_LOG_AUX_REQ(engine->base.ddc->pin_data->en, EVENT_LOG_AUX_ORIGIN_NATIVE,
-					request->action, request->address, request->length, request->data);
-}
-
-static int read_channel_reply(struct aux_engine *engine, uint32_t size,
-			      uint8_t *buffer, uint8_t *reply_result,
-			      uint32_t *sw_status)
-{
-	struct aux_engine_dce110 *aux110 = FROM_AUX_ENGINE(engine);
-	uint32_t bytes_replied;
-	uint32_t reply_result_32;
-
-	*sw_status = REG_GET(AUX_SW_STATUS, AUX_SW_REPLY_BYTE_COUNT,
-			     &bytes_replied);
-
-	/* In case HPD is LOW, exit AUX transaction */
-	if ((*sw_status & AUX_SW_STATUS__AUX_SW_HPD_DISCON_MASK))
-		return -1;
-
-	/* Need at least the status byte */
-	if (!bytes_replied)
-		return -1;
-
-	REG_UPDATE_1BY1_3(AUX_SW_DATA,
-			  AUX_SW_INDEX, 0,
-			  AUX_SW_AUTOINCREMENT_DISABLE, 1,
-			  AUX_SW_DATA_RW, 1);
-
-	REG_GET(AUX_SW_DATA, AUX_SW_DATA, &reply_result_32);
-	reply_result_32 = reply_result_32 >> 4;
-	*reply_result = (uint8_t)reply_result_32;
-
-	if (reply_result_32 == 0) { /* ACK */
-		uint32_t i = 0;
-
-		/* First byte was already used to get the command status */
-		--bytes_replied;
-
-		/* Do not overflow buffer */
-		if (bytes_replied > size)
-			return -1;
-
-		while (i < bytes_replied) {
-			uint32_t aux_sw_data_val;
-
-			REG_GET(AUX_SW_DATA, AUX_SW_DATA, &aux_sw_data_val);
-			buffer[i] = aux_sw_data_val;
-			++i;
-		}
-
-		return i;
-	}
-
-	return 0;
-}
-
-static void process_channel_reply(
-	struct aux_engine *engine,
-	struct aux_reply_transaction_data *reply)
-{
-	int bytes_replied;
-	uint8_t reply_result;
-	uint32_t sw_status;
-
-	bytes_replied = read_channel_reply(engine, reply->length, reply->data,
-						&reply_result, &sw_status);
-	EVENT_LOG_AUX_REP(engine->base.ddc->pin_data->en,
-					EVENT_LOG_AUX_ORIGIN_NATIVE, reply_result,
-					bytes_replied, reply->data);
-
-	/* in case HPD is LOW, exit AUX transaction */
-	if ((sw_status & AUX_SW_STATUS__AUX_SW_HPD_DISCON_MASK)) {
-		reply->status = AUX_TRANSACTION_REPLY_HPD_DISCON;
-		return;
-	}
-
-	if (bytes_replied < 0) {
-		/* Need to handle an error case...
-		 * Hopefully, upper layer function won't call this function if
-		 * the number of bytes in the reply was 0, because there was
-		 * surely an error that was asserted that should have been
-		 * handled for hot plug case, this could happens
-		 */
-		if (!(sw_status & AUX_SW_STATUS__AUX_SW_HPD_DISCON_MASK)) {
-			reply->status = AUX_TRANSACTION_REPLY_INVALID;
-			ASSERT_CRITICAL(false);
-			return;
-		}
-	} else {
-
-		switch (reply_result) {
-		case 0: /* ACK */
-			reply->status = AUX_TRANSACTION_REPLY_AUX_ACK;
-		break;
-		case 1: /* NACK */
-			reply->status = AUX_TRANSACTION_REPLY_AUX_NACK;
-		break;
-		case 2: /* DEFER */
-			reply->status = AUX_TRANSACTION_REPLY_AUX_DEFER;
-		break;
-		case 4: /* AUX ACK / I2C NACK */
-			reply->status = AUX_TRANSACTION_REPLY_I2C_NACK;
-		break;
-		case 8: /* AUX ACK / I2C DEFER */
-			reply->status = AUX_TRANSACTION_REPLY_I2C_DEFER;
-		break;
-		default:
-			reply->status = AUX_TRANSACTION_REPLY_INVALID;
-		}
-	}
-}
-
-static enum aux_channel_operation_result get_channel_status(
-	struct aux_engine *engine,
-	uint8_t *returned_bytes)
-{
-	struct aux_engine_dce110 *aux110 = FROM_AUX_ENGINE(engine);
-
-	uint32_t value;
-
-	if (returned_bytes == NULL) {
-		/*caller pass NULL pointer*/
-		ASSERT_CRITICAL(false);
-		return AUX_CHANNEL_OPERATION_FAILED_REASON_UNKNOWN;
-	}
-	*returned_bytes = 0;
-
-	/* poll to make sure that SW_DONE is asserted */
-	value = REG_WAIT(AUX_SW_STATUS, AUX_SW_DONE, 1,
-				10, aux110->timeout_period/10);
-
-	/* in case HPD is LOW, exit AUX transaction */
-	if ((value & AUX_SW_STATUS__AUX_SW_HPD_DISCON_MASK))
-		return AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON;
-
-	/* Note that the following bits are set in 'status.bits'
-	 * during CTS 4.2.1.2 (FW 3.3.1):
-	 * AUX_SW_RX_MIN_COUNT_VIOL, AUX_SW_RX_INVALID_STOP,
-	 * AUX_SW_RX_RECV_NO_DET, AUX_SW_RX_RECV_INVALID_H.
-	 *
-	 * AUX_SW_RX_MIN_COUNT_VIOL is an internal,
-	 * HW debugging bit and should be ignored. */
-	if (value & AUX_SW_STATUS__AUX_SW_DONE_MASK) {
-		if ((value & AUX_SW_STATUS__AUX_SW_RX_TIMEOUT_STATE_MASK) ||
-			(value & AUX_SW_STATUS__AUX_SW_RX_TIMEOUT_MASK))
-			return AUX_CHANNEL_OPERATION_FAILED_TIMEOUT;
-
-		else if ((value & AUX_SW_STATUS__AUX_SW_RX_INVALID_STOP_MASK) ||
-			(value & AUX_SW_STATUS__AUX_SW_RX_RECV_NO_DET_MASK) ||
-			(value &
-				AUX_SW_STATUS__AUX_SW_RX_RECV_INVALID_H_MASK) ||
-			(value & AUX_SW_STATUS__AUX_SW_RX_RECV_INVALID_L_MASK))
-			return AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY;
-
-		*returned_bytes = get_reg_field_value(value,
-				AUX_SW_STATUS,
-				AUX_SW_REPLY_BYTE_COUNT);
-
-		if (*returned_bytes == 0)
-			return
-			AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY;
-		else {
-			*returned_bytes -= 1;
-			return AUX_CHANNEL_OPERATION_SUCCEEDED;
-		}
-	} else {
-		/*time_elapsed >= aux_engine->timeout_period
-		 *  AUX_SW_STATUS__AUX_SW_HPD_DISCON = at this point
-		 */
-		ASSERT_CRITICAL(false);
-		return AUX_CHANNEL_OPERATION_FAILED_TIMEOUT;
-	}
-}
-
-static const struct aux_engine_funcs aux_engine_funcs = {
-	.destroy = destroy,
-	.acquire_engine = acquire_engine,
-	.submit_channel_request = submit_channel_request,
-	.process_channel_reply = process_channel_reply,
-	.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,
-	.submit_request = dal_aux_engine_submit_request,
-	.get_engine_type = dal_aux_engine_get_engine_type,
-	.acquire = dal_aux_engine_acquire,
-};
-
-static void construct(
-	struct aux_engine_dce110 *engine,
-	const struct aux_engine_dce110_init_data *aux_init_data)
-{
-	dal_aux_engine_construct(&engine->base, aux_init_data->ctx);
-	engine->base.base.funcs = &engine_funcs;
-	engine->base.funcs = &aux_engine_funcs;
-
-	engine->timeout_period = aux_init_data->timeout_period;
-	engine->regs = aux_init_data->regs;
-}
-
-static void destruct(
-	struct aux_engine_dce110 *engine)
-{
-	dal_aux_engine_destruct(&engine->base);
-}
-
-struct aux_engine *dal_aux_engine_dce110_create(
-	const struct aux_engine_dce110_init_data *aux_init_data)
-{
-	struct aux_engine_dce110 *engine;
-
-	if (!aux_init_data) {
-		ASSERT_CRITICAL(false);
-		return NULL;
-	}
-
-	engine = kzalloc(sizeof(*engine), GFP_KERNEL);
-
-	if (!engine) {
-		ASSERT_CRITICAL(false);
-		return NULL;
-	}
-
-	construct(engine, aux_init_data);
-	return &engine->base;
-}