diff options
Diffstat (limited to 'drivers')
39 files changed, 4 insertions, 5874 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/Makefile b/drivers/gpu/drm/amd/display/dc/Makefile index aed538a4d1ba..fa24e4c38794 100644 --- a/drivers/gpu/drm/amd/display/dc/Makefile +++ b/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 diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index c94bc405d135..56702840710b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/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); diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c index a343b8b6f7fb..b7ee63cd8dc7 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c @@ -33,7 +33,6 @@ #include "include/vector.h" #include "core_types.h" #include "dc_link_ddc.h" -#include "aux_engine.h" #include "dce/dce_aux.h" #define AUX_POWER_UP_WA_DELAY 500 diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index 07cd165c389c..56e7f3dab15a 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/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; diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h b/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h index 13e707e2e391..d27f22c05e4b 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_aux.h +++ b/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), \ diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.c b/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.c deleted file mode 100644 index 8cbf38b2470d..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.c +++ /dev/null @@ -1,606 +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" - -/* - * Header of this unit - */ - -#include "aux_engine.h" - -/* - * Post-requisites: headers required by this unit - */ - -#include "include/link_service_types.h" - -/* - * This unit - */ - -enum { - AUX_INVALID_REPLY_RETRY_COUNTER = 1, - AUX_TIMED_OUT_RETRY_COUNTER = 2, - AUX_DEFER_RETRY_COUNTER = 6 -}; - -#define FROM_ENGINE(ptr) \ - container_of((ptr), struct aux_engine, base) -#define DC_LOGGER \ - engine->base.ctx->logger - -enum i2caux_engine_type dal_aux_engine_get_engine_type( - const struct engine *engine) -{ - return I2CAUX_ENGINE_TYPE_AUX; -} - -bool dal_aux_engine_acquire( - struct engine *engine, - struct ddc *ddc) -{ - struct aux_engine *aux_engine = FROM_ENGINE(engine); - - enum gpio_result result; - if (aux_engine->funcs->is_engine_available) { - /*check whether SW could use the engine*/ - if (!aux_engine->funcs->is_engine_available(aux_engine)) { - return false; - } - } - - result = dal_ddc_open(ddc, GPIO_MODE_HARDWARE, - GPIO_DDC_CONFIG_TYPE_MODE_AUX); - - if (result != GPIO_RESULT_OK) - return false; - - if (!aux_engine->funcs->acquire_engine(aux_engine)) { - dal_ddc_close(ddc); - return false; - } - - engine->ddc = ddc; - - return true; -} - -struct read_command_context { - uint8_t *buffer; - uint32_t current_read_length; - uint32_t offset; - enum i2caux_transaction_status status; - - struct aux_request_transaction_data request; - struct aux_reply_transaction_data reply; - - uint8_t returned_byte; - - uint32_t timed_out_retry_aux; - uint32_t invalid_reply_retry_aux; - uint32_t defer_retry_aux; - uint32_t defer_retry_i2c; - uint32_t invalid_reply_retry_aux_on_ack; - - bool transaction_complete; - bool operation_succeeded; -}; - -static void process_read_reply( - struct aux_engine *engine, - struct read_command_context *ctx) -{ - engine->funcs->process_channel_reply(engine, &ctx->reply); - - switch (ctx->reply.status) { - case AUX_TRANSACTION_REPLY_AUX_ACK: - ctx->defer_retry_aux = 0; - if (ctx->returned_byte > ctx->current_read_length) { - ctx->status = - I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR; - ctx->operation_succeeded = false; - } else if (ctx->returned_byte < ctx->current_read_length) { - ctx->current_read_length -= ctx->returned_byte; - - ctx->offset += ctx->returned_byte; - - ++ctx->invalid_reply_retry_aux_on_ack; - - if (ctx->invalid_reply_retry_aux_on_ack > - AUX_INVALID_REPLY_RETRY_COUNTER) { - ctx->status = - I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR; - ctx->operation_succeeded = false; - } - } else { - ctx->status = I2CAUX_TRANSACTION_STATUS_SUCCEEDED; - ctx->transaction_complete = true; - ctx->operation_succeeded = true; - } - break; - case AUX_TRANSACTION_REPLY_AUX_NACK: - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_NACK; - ctx->operation_succeeded = false; - break; - case AUX_TRANSACTION_REPLY_AUX_DEFER: - ++ctx->defer_retry_aux; - - if (ctx->defer_retry_aux > AUX_DEFER_RETRY_COUNTER) { - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT; - ctx->operation_succeeded = false; - } - break; - case AUX_TRANSACTION_REPLY_I2C_DEFER: - ctx->defer_retry_aux = 0; - - ++ctx->defer_retry_i2c; - - if (ctx->defer_retry_i2c > AUX_DEFER_RETRY_COUNTER) { - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT; - ctx->operation_succeeded = false; - } - break; - case AUX_TRANSACTION_REPLY_HPD_DISCON: - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_HPD_DISCON; - ctx->operation_succeeded = false; - break; - default: - ctx->status = I2CAUX_TRANSACTION_STATUS_UNKNOWN; - ctx->operation_succeeded = false; - } -} - -static void process_read_request( - struct aux_engine *engine, - struct read_command_context *ctx) -{ - enum aux_channel_operation_result operation_result; - - engine->funcs->submit_channel_request(engine, &ctx->request); - - operation_result = engine->funcs->get_channel_status( - engine, &ctx->returned_byte); - - switch (operation_result) { - case AUX_CHANNEL_OPERATION_SUCCEEDED: - if (ctx->returned_byte > ctx->current_read_length) { - ctx->status = - I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR; - ctx->operation_succeeded = false; - } else { - ctx->timed_out_retry_aux = 0; - ctx->invalid_reply_retry_aux = 0; - - ctx->reply.length = ctx->returned_byte; - ctx->reply.data = ctx->buffer; - - process_read_reply(engine, ctx); - } - break; - case AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY: - ++ctx->invalid_reply_retry_aux; - - if (ctx->invalid_reply_retry_aux > - AUX_INVALID_REPLY_RETRY_COUNTER) { - ctx->status = - I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR; - ctx->operation_succeeded = false; - } else - udelay(400); - break; - case AUX_CHANNEL_OPERATION_FAILED_TIMEOUT: - ++ctx->timed_out_retry_aux; - - if (ctx->timed_out_retry_aux > AUX_TIMED_OUT_RETRY_COUNTER) { - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT; - ctx->operation_succeeded = false; - } else { - /* DP 1.2a, table 2-58: - * "S3: AUX Request CMD PENDING: - * retry 3 times, with 400usec wait on each" - * The HW timeout is set to 550usec, - * so we should not wait here */ - } - break; - case AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON: - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_HPD_DISCON; - ctx->operation_succeeded = false; - break; - default: - ctx->status = I2CAUX_TRANSACTION_STATUS_UNKNOWN; - ctx->operation_succeeded = false; - } -} - -static bool read_command( - struct aux_engine *engine, - struct i2caux_transaction_request *request, - bool middle_of_transaction) -{ - struct read_command_context ctx; - - ctx.buffer = request->payload.data; - ctx.current_read_length = request->payload.length; - ctx.offset = 0; - ctx.timed_out_retry_aux = 0; - ctx.invalid_reply_retry_aux = 0; - ctx.defer_retry_aux = 0; - ctx.defer_retry_i2c = 0; - ctx.invalid_reply_retry_aux_on_ack = 0; - ctx.transaction_complete = false; - ctx.operation_succeeded = true; - - if (request->payload.address_space == - I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD) { - ctx.request.type = AUX_TRANSACTION_TYPE_DP; - ctx.request.action = I2CAUX_TRANSACTION_ACTION_DP_READ; - ctx.request.address = request->payload.address; - } else if (request->payload.address_space == - I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C) { - ctx.request.type = AUX_TRANSACTION_TYPE_I2C; - ctx.request.action = middle_of_transaction ? - I2CAUX_TRANSACTION_ACTION_I2C_READ_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_READ; - ctx.request.address = request->payload.address >> 1; - } else { - /* in DAL2, there was no return in such case */ - BREAK_TO_DEBUGGER(); - return false; - } - - ctx.request.delay = 0; - - do { - memset(ctx.buffer + ctx.offset, 0, ctx.current_read_length); - - ctx.request.data = ctx.buffer + ctx.offset; - ctx.request.length = ctx.current_read_length; - - process_read_request(engine, &ctx); - - request->status = ctx.status; - - if (ctx.operation_succeeded && !ctx.transaction_complete) - if (ctx.request.type == AUX_TRANSACTION_TYPE_I2C) - msleep(engine->delay); - } while (ctx.operation_succeeded && !ctx.transaction_complete); - - if (request->payload.address_space == - I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD) { - DC_LOG_I2C_AUX("READ: addr:0x%x value:0x%x Result:%d", - request->payload.address, - request->payload.data[0], - ctx.operation_succeeded); - } - - return ctx.operation_succeeded; -} - -struct write_command_context { - bool mot; - - uint8_t *buffer; - uint32_t current_write_length; - enum i2caux_transaction_status status; - - struct aux_request_transaction_data request; - struct aux_reply_transaction_data reply; - - uint8_t returned_byte; - - uint32_t timed_out_retry_aux; - uint32_t invalid_reply_retry_aux; - uint32_t defer_retry_aux; - uint32_t defer_retry_i2c; - uint32_t max_defer_retry; - uint32_t ack_m_retry; - - uint8_t reply_data[DEFAULT_AUX_MAX_DATA_SIZE]; - - bool transaction_complete; - bool operation_succeeded; -}; - -static void process_write_reply( - struct aux_engine *engine, - struct write_command_context *ctx) -{ - engine->funcs->process_channel_reply(engine, &ctx->reply); - - switch (ctx->reply.status) { - case AUX_TRANSACTION_REPLY_AUX_ACK: - ctx->operation_succeeded = true; - - if (ctx->returned_byte) { - ctx->request.action = ctx->mot ? - I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST; - - ctx->current_write_length = 0; - - ++ctx->ack_m_retry; - - if (ctx->ack_m_retry > AUX_DEFER_RETRY_COUNTER) { - ctx->status = - I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT; - ctx->operation_succeeded = false; - } else - udelay(300); - } else { - ctx->status = I2CAUX_TRANSACTION_STATUS_SUCCEEDED; - ctx->defer_retry_aux = 0; - ctx->ack_m_retry = 0; - ctx->transaction_complete = true; - } - break; - case AUX_TRANSACTION_REPLY_AUX_NACK: - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_NACK; - ctx->operation_succeeded = false; - break; - case AUX_TRANSACTION_REPLY_AUX_DEFER: - ++ctx->defer_retry_aux; - - if (ctx->defer_retry_aux > ctx->max_defer_retry) { - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT; - ctx->operation_succeeded = false; - } - break; - case AUX_TRANSACTION_REPLY_I2C_DEFER: - ctx->defer_retry_aux = 0; - ctx->current_write_length = 0; - - ctx->request.action = ctx->mot ? - I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST; - - ++ctx->defer_retry_i2c; - - if (ctx->defer_retry_i2c > ctx->max_defer_retry) { - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT; - ctx->operation_succeeded = false; - } - break; - case AUX_TRANSACTION_REPLY_HPD_DISCON: - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_HPD_DISCON; - ctx->operation_succeeded = false; - break; - default: - ctx->status = I2CAUX_TRANSACTION_STATUS_UNKNOWN; - ctx->operation_succeeded = false; - } -} - -static void process_write_request( - struct aux_engine *engine, - struct write_command_context *ctx) -{ - enum aux_channel_operation_result operation_result; - - engine->funcs->submit_channel_request(engine, &ctx->request); - - operation_result = engine->funcs->get_channel_status( - engine, &ctx->returned_byte); - - switch (operation_result) { - case AUX_CHANNEL_OPERATION_SUCCEEDED: - ctx->timed_out_retry_aux = 0; - ctx->invalid_reply_retry_aux = 0; - - ctx->reply.length = ctx->returned_byte; - ctx->reply.data = ctx->reply_data; - - process_write_reply(engine, ctx); - break; - case AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY: - ++ctx->invalid_reply_retry_aux; - - if (ctx->invalid_reply_retry_aux > - AUX_INVALID_REPLY_RETRY_COUNTER) { - ctx->status = - I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR; - ctx->operation_succeeded = false; - } else - udelay(400); - break; - case AUX_CHANNEL_OPERATION_FAILED_TIMEOUT: - ++ctx->timed_out_retry_aux; - - if (ctx->timed_out_retry_aux > AUX_TIMED_OUT_RETRY_COUNTER) { - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT; - ctx->operation_succeeded = false; - } else { - /* DP 1.2a, table 2-58: - * "S3: AUX Request CMD PENDING: - * retry 3 times, with 400usec wait on each" - * The HW timeout is set to 550usec, - * so we should not wait here */ - } - break; - case AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON: - ctx->status = I2CAUX_TRANSACTION_STATUS_FAILED_HPD_DISCON; - ctx->operation_succeeded = false; - break; - default: - ctx->status = I2CAUX_TRANSACTION_STATUS_UNKNOWN; - ctx->operation_succeeded = false; - } -} - -static bool write_command( - struct aux_engine *engine, - struct i2caux_transaction_request *request, - bool middle_of_transaction) -{ - struct write_command_context ctx; - - ctx.mot = middle_of_transaction; - ctx.buffer = request->payload.data; - ctx.current_write_length = request->payload.length; - ctx.timed_out_retry_aux = 0; - ctx.invalid_reply_retry_aux = 0; - ctx.defer_retry_aux = 0; - ctx.defer_retry_i2c = 0; - ctx.ack_m_retry = 0; - ctx.transaction_complete = false; - ctx.operation_succeeded = true; - - if (request->payload.address_space == - I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD) { - ctx.request.type = AUX_TRANSACTION_TYPE_DP; - ctx.request.action = I2CAUX_TRANSACTION_ACTION_DP_WRITE; - ctx.request.address = request->payload.address; - } else if (request->payload.address_space == - I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C) { - ctx.request.type = AUX_TRANSACTION_TYPE_I2C; - ctx.request.action = middle_of_transaction ? - I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_WRITE; - ctx.request.address = request->payload.address >> 1; - } else { - /* in DAL2, there was no return in such case */ - BREAK_TO_DEBUGGER(); - return false; - } - - ctx.request.delay = 0; - - ctx.max_defer_retry = - (engine->max_defer_write_retry > AUX_DEFER_RETRY_COUNTER) ? - engine->max_defer_write_retry : AUX_DEFER_RETRY_COUNTER; - - do { - ctx.request.data = ctx.buffer; - ctx.request.length = ctx.current_write_length; - - process_write_request(engine, &ctx); - - request->status = ctx.status; - - if (ctx.operation_succeeded && !ctx.transaction_complete) - if (ctx.request.type == AUX_TRANSACTION_TYPE_I2C) - msleep(engine->delay); - } while (ctx.operation_succeeded && !ctx.transaction_complete); - - if (request->payload.address_space == - I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD) { - DC_LOG_I2C_AUX("WRITE: addr:0x%x value:0x%x Result:%d", - request->payload.address, - request->payload.data[0], - ctx.operation_succeeded); - } - - return ctx.operation_succeeded; -} - -static bool end_of_transaction_command( - struct aux_engine *engine, - struct i2caux_transaction_request *request) -{ - struct i2caux_transaction_request dummy_request; - uint8_t dummy_data; - - /* [tcheng] We only need to send the stop (read with MOT = 0) - * for I2C-over-Aux, not native AUX */ - - if (request->payload.address_space != - I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C) - return false; - - dummy_request.operation = request->operation; - dummy_request.payload.address_space = request->payload.address_space; - dummy_request.payload.address = request->payload.address; - - /* - * Add a dummy byte due to some receiver quirk - * where one byte is sent along with MOT = 0. - * Ideally this should be 0. - */ - - dummy_request.payload.length = 0; - dummy_request.payload.data = &dummy_data; - - if (request->operation == I2CAUX_TRANSACTION_READ) - return read_command(engine, &dummy_request, false); - else - return write_command(engine, &dummy_request, false); - - /* according Syed, it does not need now DoDummyMOT */ -} - -bool dal_aux_engine_submit_request( - struct engine *engine, - struct i2caux_transaction_request *request, - bool middle_of_transaction) -{ - struct aux_engine *aux_engine = FROM_ENGINE(engine); - - bool result; - bool mot_used = true; - - switch (request->operation) { - case I2CAUX_TRANSACTION_READ: - result = read_command(aux_engine, request, mot_used); - break; - case I2CAUX_TRANSACTION_WRITE: - result = write_command(aux_engine, request, mot_used); - break; - default: - result = false; - } - - /* [tcheng] - * need to send stop for the last transaction to free up the AUX - * if the above command fails, this would be the last transaction */ - - if (!middle_of_transaction || !result) - end_of_transaction_command(aux_engine, request); - - /* mask AUX interrupt */ - - return result; -} - -void dal_aux_engine_construct( - struct aux_engine *engine, - struct dc_context *ctx) -{ - dal_i2caux_construct_engine(&engine->base, ctx); - engine->delay = 0; - engine->max_defer_write_retry = 0; -} - -void dal_aux_engine_destruct( - struct aux_engine *engine) -{ - dal_i2caux_destruct_engine(&engine->base); -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.h b/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.h deleted file mode 100644 index c33a2898d967..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.h +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.c deleted file mode 100644 index 8b704ab0471c..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.h deleted file mode 100644 index 2b508d3e0ef4..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce100/i2caux_dce100.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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__ */ 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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.h deleted file mode 100644 index 85ee82162590..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.h +++ /dev/null @@ -1,78 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_hw_engine_dce110.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_hw_engine_dce110.h deleted file mode 100644 index fea2946906ed..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_hw_engine_dce110.h +++ /dev/null @@ -1,218 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c deleted file mode 100644 index 3aa7f791e523..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.c +++ /dev/null @@ -1,160 +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" - -/* - * 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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.h deleted file mode 100644 index c48c61f540a8..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2c_sw_engine_dce110.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.c deleted file mode 100644 index 1d748ac1d6d6..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.c +++ /dev/null @@ -1,329 +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" - -/* - * 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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.h deleted file mode 100644 index d3d8cc58666a..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/i2caux_dce110.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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__ */ diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.c deleted file mode 100644 index 6a4f344c1db4..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * 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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.h deleted file mode 100644 index b6ac47617c70..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce120/i2caux_dce120.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * 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__ */ diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.c deleted file mode 100644 index fd0832dd2c75..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.c +++ /dev/null @@ -1,875 +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" - -/* - * 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" -#include "../i2c_generic_hw_engine.h" -/* - * Header of this unit - */ - -#include "i2c_hw_engine_dce80.h" - -/* - * Post-requisites: headers required by this unit - */ - -#include "dce/dce_8_0_d.h" -#include "dce/dce_8_0_sh_mask.h" -/* - * This unit - */ - -enum dc_i2c_status { - DC_I2C_STATUS__DC_I2C_STATUS_IDLE, - DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_SW, - DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_HW -}; - -enum dc_i2c_arbitration { - DC_I2C_ARBITRATION__DC_I2C_SW_PRIORITY_NORMAL, - DC_I2C_ARBITRATION__DC_I2C_SW_PRIORITY_HIGH -}; - -enum { - /* No timeout in HW - * (timeout implemented in SW by querying status) */ - I2C_SETUP_TIME_LIMIT = 255, - I2C_HW_BUFFER_SIZE = 144 -}; - -/* - * @brief - * Cast 'struct i2c_hw_engine *' - * to 'struct i2c_hw_engine_dce80 *' - */ -#define FROM_I2C_HW_ENGINE(ptr) \ - container_of((ptr), struct i2c_hw_engine_dce80, base) - -/* - * @brief - * Cast pointer to 'struct i2c_engine *' - * to pointer to 'struct i2c_hw_engine_dce80 *' - */ -#define FROM_I2C_ENGINE(ptr) \ - FROM_I2C_HW_ENGINE(container_of((ptr), struct i2c_hw_engine, base)) - -/* - * @brief - * Cast pointer to 'struct engine *' - * to 'pointer to struct i2c_hw_engine_dce80 *' - */ -#define FROM_ENGINE(ptr) \ - FROM_I2C_ENGINE(container_of((ptr), struct i2c_engine, base)) - -static void disable_i2c_hw_engine( - struct i2c_hw_engine_dce80 *engine) -{ - const uint32_t addr = engine->addr.DC_I2C_DDCX_SETUP; - uint32_t value = 0; - - struct dc_context *ctx = NULL; - - ctx = engine->base.base.base.ctx; - - value = dm_read_reg(ctx, addr); - - set_reg_field_value( - value, - 0, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_ENABLE); - - dm_write_reg(ctx, addr, value); -} - -static void release_engine( - struct engine *engine) -{ - struct i2c_hw_engine_dce80 *hw_engine = FROM_ENGINE(engine); - - struct i2c_engine *base = NULL; - bool safe_to_reset; - uint32_t value = 0; - - base = &hw_engine->base.base; - - /* Restore original HW engine speed */ - - base->funcs->set_speed(base, hw_engine->base.original_speed); - - /* Release I2C */ - { - value = dm_read_reg(engine->ctx, mmDC_I2C_ARBITRATION); - - set_reg_field_value( - value, - 1, - DC_I2C_ARBITRATION, - DC_I2C_SW_DONE_USING_I2C_REG); - - dm_write_reg(engine->ctx, mmDC_I2C_ARBITRATION, value); - } - - /* Reset HW engine */ - { - uint32_t i2c_sw_status = 0; - - value = dm_read_reg(engine->ctx, mmDC_I2C_SW_STATUS); - - i2c_sw_status = get_reg_field_value( - value, - DC_I2C_SW_STATUS, - DC_I2C_SW_STATUS); - /* if used by SW, safe to reset */ - safe_to_reset = (i2c_sw_status == 1); - } - { - value = dm_read_reg(engine->ctx, mmDC_I2C_CONTROL); - - if (safe_to_reset) - set_reg_field_value( - value, - 1, - DC_I2C_CONTROL, - DC_I2C_SOFT_RESET); - - set_reg_field_value( - value, - 1, - DC_I2C_CONTROL, - DC_I2C_SW_STATUS_RESET); - - dm_write_reg(engine->ctx, mmDC_I2C_CONTROL, value); - } - - /* HW I2c engine - clock gating feature */ - if (!hw_engine->engine_keep_power_up_count) - disable_i2c_hw_engine(hw_engine); -} - -static void destruct( - struct i2c_hw_engine_dce80 *engine) -{ - dal_i2c_hw_engine_destruct(&engine->base); -} - -static void destroy( - struct i2c_engine **i2c_engine) -{ - struct i2c_hw_engine_dce80 *engine = FROM_I2C_ENGINE(*i2c_engine); - - destruct(engine); - - kfree(engine); - - *i2c_engine = NULL; -} - -static bool setup_engine( - struct i2c_engine *i2c_engine) -{ - uint32_t value = 0; - struct i2c_hw_engine_dce80 *engine = FROM_I2C_ENGINE(i2c_engine); - - /* Program pin select */ - { - const uint32_t addr = mmDC_I2C_CONTROL; - - value = dm_read_reg(i2c_engine->base.ctx, addr); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_GO); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_SOFT_RESET); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_SEND_RESET); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_SW_STATUS_RESET); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_TRANSACTION_COUNT); - - set_reg_field_value( - value, - engine->engine_id, - DC_I2C_CONTROL, - DC_I2C_DDC_SELECT); - - dm_write_reg(i2c_engine->base.ctx, addr, value); - } - - /* Program time limit */ - { - const uint32_t addr = engine->addr.DC_I2C_DDCX_SETUP; - - value = dm_read_reg(i2c_engine->base.ctx, addr); - - set_reg_field_value( - value, - I2C_SETUP_TIME_LIMIT, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_TIME_LIMIT); - - set_reg_field_value( - value, - 1, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_ENABLE); - - dm_write_reg(i2c_engine->base.ctx, addr, value); - } - - /* Program HW priority - * set to High - interrupt software I2C at any time - * Enable restart of SW I2C that was interrupted by HW - * disable queuing of software while I2C is in use by HW */ - { - value = dm_read_reg(i2c_engine->base.ctx, - mmDC_I2C_ARBITRATION); - - set_reg_field_value( - value, - 0, - DC_I2C_ARBITRATION, - DC_I2C_NO_QUEUED_SW_GO); - - set_reg_field_value( - value, - DC_I2C_ARBITRATION__DC_I2C_SW_PRIORITY_NORMAL, - DC_I2C_ARBITRATION, - DC_I2C_SW_PRIORITY); - - dm_write_reg(i2c_engine->base.ctx, - mmDC_I2C_ARBITRATION, value); - } - - return true; -} - -static uint32_t get_speed( - const struct i2c_engine *i2c_engine) -{ - const struct i2c_hw_engine_dce80 *engine = FROM_I2C_ENGINE(i2c_engine); - - const uint32_t addr = engine->addr.DC_I2C_DDCX_SPEED; - - uint32_t pre_scale = 0; - - uint32_t value = dm_read_reg(i2c_engine->base.ctx, addr); - - pre_scale = get_reg_field_value( - value, - DC_I2C_DDC1_SPEED, - DC_I2C_DDC1_PRESCALE); - - /* [anaumov] it seems following is unnecessary */ - /*ASSERT(value.bits.DC_I2C_DDC1_PRESCALE);*/ - - return pre_scale ? - engine->reference_frequency / pre_scale : - engine->base.default_speed; -} - -static void set_speed( - struct i2c_engine *i2c_engine, - uint32_t speed) -{ - struct i2c_hw_engine_dce80 *engine = FROM_I2C_ENGINE(i2c_engine); - - if (speed) { - const uint32_t addr = engine->addr.DC_I2C_DDCX_SPEED; - - uint32_t value = dm_read_reg(i2c_engine->base.ctx, addr); - - set_reg_field_value( - value, - engine->reference_frequency / speed, - DC_I2C_DDC1_SPEED, - DC_I2C_DDC1_PRESCALE); - - set_reg_field_value( - value, - 2, - DC_I2C_DDC1_SPEED, - DC_I2C_DDC1_THRESHOLD); - - dm_write_reg(i2c_engine->base.ctx, addr, value); - } -} - -static inline void reset_hw_engine(struct engine *engine) -{ - uint32_t value = dm_read_reg(engine->ctx, mmDC_I2C_CONTROL); - - set_reg_field_value( - value, - 1, - DC_I2C_CONTROL, - DC_I2C_SOFT_RESET); - - set_reg_field_value( - value, - 1, - DC_I2C_CONTROL, - DC_I2C_SW_STATUS_RESET); - - dm_write_reg(engine->ctx, mmDC_I2C_CONTROL, value); -} - -static bool is_hw_busy(struct engine *engine) -{ - uint32_t i2c_sw_status = 0; - - uint32_t value = dm_read_reg(engine->ctx, mmDC_I2C_SW_STATUS); - - i2c_sw_status = get_reg_field_value( - value, - DC_I2C_SW_STATUS, - DC_I2C_SW_STATUS); - - if (i2c_sw_status == DC_I2C_STATUS__DC_I2C_STATUS_IDLE) - return false; - - reset_hw_engine(engine); - - value = dm_read_reg(engine->ctx, mmDC_I2C_SW_STATUS); - - i2c_sw_status = get_reg_field_value( - value, - DC_I2C_SW_STATUS, - DC_I2C_SW_STATUS); - - return i2c_sw_status != DC_I2C_STATUS__DC_I2C_STATUS_IDLE; -} - -/* - * @brief - * DC_GPIO_DDC MM register offsets - */ -static const uint32_t transaction_addr[] = { - mmDC_I2C_TRANSACTION0, - mmDC_I2C_TRANSACTION1, - mmDC_I2C_TRANSACTION2, - mmDC_I2C_TRANSACTION3 -}; - -static bool process_transaction( - struct i2c_hw_engine_dce80 *engine, - struct i2c_request_transaction_data *request) -{ - uint32_t length = request->length; - uint8_t *buffer = request->data; - - bool last_transaction = false; - uint32_t value = 0; - - struct dc_context *ctx = NULL; - - ctx = engine->base.base.base.ctx; - - { - const uint32_t addr = - transaction_addr[engine->transaction_count]; - - value = dm_read_reg(ctx, addr); - - set_reg_field_value( - value, - 1, - DC_I2C_TRANSACTION0, - DC_I2C_STOP_ON_NACK0); - - set_reg_field_value( - value, - 1, - DC_I2C_TRANSACTION0, - DC_I2C_START0); - - if ((engine->transaction_count == 3) || - (request->action == I2CAUX_TRANSACTION_ACTION_I2C_WRITE) || - (request->action & I2CAUX_TRANSACTION_ACTION_I2C_READ)) { - - set_reg_field_value( - value, - 1, - DC_I2C_TRANSACTION0, - DC_I2C_STOP0); - - last_transaction = true; - } else - set_reg_field_value( - value, - 0, - DC_I2C_TRANSACTION0, - DC_I2C_STOP0); - - set_reg_field_value( - value, - (0 != (request->action & - I2CAUX_TRANSACTION_ACTION_I2C_READ)), - DC_I2C_TRANSACTION0, - DC_I2C_RW0); - - set_reg_field_value( - value, - length, - DC_I2C_TRANSACTION0, - DC_I2C_COUNT0); - - dm_write_reg(ctx, addr, value); - } - - /* Write the I2C address and I2C data - * into the hardware circular buffer, one byte per entry. - * As an example, the 7-bit I2C slave address for CRT monitor - * for reading DDC/EDID information is 0b1010001. - * For an I2C send operation, the LSB must be programmed to 0; - * for I2C receive operation, the LSB must be programmed to 1. */ - - { - value = 0; - - set_reg_field_value( - value, - false, - DC_I2C_DATA, - DC_I2C_DATA_RW); - - set_reg_field_value( - value, - request->address, - DC_I2C_DATA, - DC_I2C_DATA); - - if (engine->transaction_count == 0) { - set_reg_field_value( - value, - 0, - DC_I2C_DATA, - DC_I2C_INDEX); - - /*enable index write*/ - set_reg_field_value( - value, - 1, - DC_I2C_DATA, - DC_I2C_INDEX_WRITE); - } - - dm_write_reg(ctx, mmDC_I2C_DATA, value); - - if (!(request->action & I2CAUX_TRANSACTION_ACTION_I2C_READ)) { - - set_reg_field_value( - value, - 0, - DC_I2C_DATA, - DC_I2C_INDEX_WRITE); - - while (length) { - - set_reg_field_value( - value, - *buffer++, - DC_I2C_DATA, - DC_I2C_DATA); - - dm_write_reg(ctx, mmDC_I2C_DATA, value); - --length; - } - } - } - - ++engine->transaction_count; - engine->buffer_used_bytes += length + 1; - - return last_transaction; -} - -static void execute_transaction( - struct i2c_hw_engine_dce80 *engine) -{ - uint32_t value = 0; - struct dc_context *ctx = NULL; - - ctx = engine->base.base.base.ctx; - - { - const uint32_t addr = engine->addr.DC_I2C_DDCX_SETUP; - - value = dm_read_reg(ctx, addr); - - set_reg_field_value( - value, - 0, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_DATA_DRIVE_EN); - - set_reg_field_value( - value, - 0, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_CLK_DRIVE_EN); - - set_reg_field_value( - value, - 0, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_DATA_DRIVE_SEL); - - set_reg_field_value( - value, - 0, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_INTRA_TRANSACTION_DELAY); - - set_reg_field_value( - value, - 0, - DC_I2C_DDC1_SETUP, - DC_I2C_DDC1_INTRA_BYTE_DELAY); - - dm_write_reg(ctx, addr, value); - } - - { - const uint32_t addr = mmDC_I2C_CONTROL; - - value = dm_read_reg(ctx, addr); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_SOFT_RESET); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_SW_STATUS_RESET); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_SEND_RESET); - - set_reg_field_value( - value, - 0, - DC_I2C_CONTROL, - DC_I2C_GO); - - set_reg_field_value( - value, - engine->transaction_count - 1, - DC_I2C_CONTROL, - DC_I2C_TRANSACTION_COUNT); - - dm_write_reg(ctx, addr, value); - } - - /* start I2C transfer */ - { - const uint32_t addr = mmDC_I2C_CONTROL; - - value = dm_read_reg(ctx, addr); - - set_reg_field_value( - value, - 1, - DC_I2C_CONTROL, - DC_I2C_GO); - - dm_write_reg(ctx, addr, value); - } - - /* all transactions were executed and HW buffer became empty - * (even though it actually happens when status becomes DONE) */ - engine->transaction_count = 0; - engine->buffer_used_bytes = 0; -} - -static void submit_channel_request( - struct i2c_engine *engine, - struct i2c_request_transaction_data *request) -{ - request->status = I2C_CHANNEL_OPERATION_SUCCEEDED; - - if (!process_transaction(FROM_I2C_ENGINE(engine), request)) - return; - - if (is_hw_busy(&engine->base)) { - request->status = I2C_CHANNEL_OPERATION_ENGINE_BUSY; - return; - } - - execute_transaction(FROM_I2C_ENGINE(engine)); -} - -static void process_channel_reply( - struct i2c_engine *engine, - struct i2c_reply_transaction_data *reply) -{ - uint32_t length = reply->length; - uint8_t *buffer = reply->data; - - uint32_t value = 0; - - /*set index*/ - set_reg_field_value( - value, - length - 1, - DC_I2C_DATA, - DC_I2C_INDEX); - - set_reg_field_value( - value, - 1, - DC_I2C_DATA, - DC_I2C_DATA_RW); - - set_reg_field_value( - value, - 1, - DC_I2C_DATA, - DC_I2C_INDEX_WRITE); - - dm_write_reg(engine->base.ctx, mmDC_I2C_DATA, value); - - while (length) { - /* after reading the status, - * if the I2C operation executed successfully - * (i.e. DC_I2C_STATUS_DONE = 1) then the I2C controller - * should read data bytes from I2C circular data buffer */ - - value = dm_read_reg(engine->base.ctx, mmDC_I2C_DATA); - - *buffer++ = get_reg_field_value( - value, - DC_I2C_DATA, - DC_I2C_DATA); - - --length; - } -} - -static enum i2c_channel_operation_result get_channel_status( - struct i2c_engine *engine, - uint8_t *returned_bytes) -{ - uint32_t i2c_sw_status = 0; - uint32_t value = dm_read_reg(engine->base.ctx, mmDC_I2C_SW_STATUS); - - i2c_sw_status = get_reg_field_value( - value, - DC_I2C_SW_STATUS, - DC_I2C_SW_STATUS); - - if (i2c_sw_status == DC_I2C_STATUS__DC_I2C_STATUS_USED_BY_SW) - return I2C_CHANNEL_OPERATION_ENGINE_BUSY; - else if (value & DC_I2C_SW_STATUS__DC_I2C_SW_STOPPED_ON_NACK_MASK) - return I2C_CHANNEL_OPERATION_NO_RESPONSE; - else if (value & DC_I2C_SW_STATUS__DC_I2C_SW_TIMEOUT_MASK) - return I2C_CHANNEL_OPERATION_TIMEOUT; - else if (value & DC_I2C_SW_STATUS__DC_I2C_SW_ABORTED_MASK) - return I2C_CHANNEL_OPERATION_FAILED; - else if (value & DC_I2C_SW_STATUS__DC_I2C_SW_DONE_MASK) - return I2C_CHANNEL_OPERATION_SUCCEEDED; - - /* - * this is the case when HW used for communication, I2C_SW_STATUS - * could be zero - */ - return I2C_CHANNEL_OPERATION_SUCCEEDED; -} - -static uint32_t get_hw_buffer_available_size( - const struct i2c_hw_engine *engine) -{ - return I2C_HW_BUFFER_SIZE - - FROM_I2C_HW_ENGINE(engine)->buffer_used_bytes; -} - -static uint32_t get_transaction_timeout( - const struct i2c_hw_engine *engine, - uint32_t length) -{ - uint32_t speed = engine->base.funcs->get_speed(&engine->base); - - uint32_t period_timeout; - uint32_t num_of_clock_stretches; - - if (!speed) - return 0; - - period_timeout = (1000 * TRANSACTION_TIMEOUT_IN_I2C_CLOCKS) / speed; - - num_of_clock_stretches = 1 + (length << 3) + 1; - num_of_clock_stretches += - (FROM_I2C_HW_ENGINE(engine)->buffer_used_bytes << 3) + - (FROM_I2C_HW_ENGINE(engine)->transaction_count << 1); - - return period_timeout * num_of_clock_stretches; -} - -/* - * @brief - * DC_I2C_DDC1_SETUP MM register offsets - * - * @note - * The indices of this offset array are DDC engine IDs - */ -static const int32_t ddc_setup_offset[] = { - - mmDC_I2C_DDC1_SETUP - mmDC_I2C_DDC1_SETUP, /* DDC Engine 1 */ - mmDC_I2C_DDC2_SETUP - mmDC_I2C_DDC1_SETUP, /* DDC Engine 2 */ - mmDC_I2C_DDC3_SETUP - mmDC_I2C_DDC1_SETUP, /* DDC Engine 3 */ - mmDC_I2C_DDC4_SETUP - mmDC_I2C_DDC1_SETUP, /* DDC Engine 4 */ - mmDC_I2C_DDC5_SETUP - mmDC_I2C_DDC1_SETUP, /* DDC Engine 5 */ - mmDC_I2C_DDC6_SETUP - mmDC_I2C_DDC1_SETUP, /* DDC Engine 6 */ - mmDC_I2C_DDCVGA_SETUP - mmDC_I2C_DDC1_SETUP /* DDC Engine 7 */ -}; - -/* - * @brief - * DC_I2C_DDC1_SPEED MM register offsets - * - * @note - * The indices of this offset array are DDC engine IDs - */ -static const int32_t ddc_speed_offset[] = { - mmDC_I2C_DDC1_SPEED - mmDC_I2C_DDC1_SPEED, /* DDC Engine 1 */ - mmDC_I2C_DDC2_SPEED - mmDC_I2C_DDC1_SPEED, /* DDC Engine 2 */ - mmDC_I2C_DDC3_SPEED - mmDC_I2C_DDC1_SPEED, /* DDC Engine 3 */ - mmDC_I2C_DDC4_SPEED - mmDC_I2C_DDC1_SPEED, /* DDC Engine 4 */ - mmDC_I2C_DDC5_SPEED - mmDC_I2C_DDC1_SPEED, /* DDC Engine 5 */ - mmDC_I2C_DDC6_SPEED - mmDC_I2C_DDC1_SPEED, /* DDC Engine 6 */ - mmDC_I2C_DDCVGA_SPEED - mmDC_I2C_DDC1_SPEED /* DDC Engine 7 */ -}; - -static const struct i2c_engine_funcs i2c_engine_funcs = { - .destroy = destroy, - .get_speed = get_speed, - .set_speed = set_speed, - .setup_engine = setup_engine, - .submit_channel_request = submit_channel_request, - .process_channel_reply = process_channel_reply, - .get_channel_status = get_channel_status, - .acquire_engine = dal_i2c_hw_engine_acquire_engine, -}; - -static const struct engine_funcs engine_funcs = { - .release_engine = release_engine, - .get_engine_type = dal_i2c_hw_engine_get_engine_type, - .acquire = dal_i2c_engine_acquire, - .submit_request = dal_i2c_hw_engine_submit_request, -}; - -static const struct i2c_hw_engine_funcs i2c_hw_engine_funcs = { - .get_hw_buffer_available_size = - get_hw_buffer_available_size, - .get_transaction_timeout = - get_transaction_timeout, - .wait_on_operation_result = - dal_i2c_hw_engine_wait_on_operation_result, -}; - -static void construct( - struct i2c_hw_engine_dce80 *engine, - const struct i2c_hw_engine_dce80_create_arg *arg) -{ - dal_i2c_hw_engine_construct(&engine->base, arg->ctx); - - engine->base.base.base.funcs = &engine_funcs; - engine->base.base.funcs = &i2c_engine_funcs; - engine->base.funcs = &i2c_hw_engine_funcs; - engine->base.default_speed = arg->default_speed; - engine->addr.DC_I2C_DDCX_SETUP = - mmDC_I2C_DDC1_SETUP + ddc_setup_offset[arg->engine_id]; - engine->addr.DC_I2C_DDCX_SPEED = - mmDC_I2C_DDC1_SPEED + ddc_speed_offset[arg->engine_id]; - - engine->engine_id = arg->engine_id; - engine->reference_frequency = arg->reference_frequency; - engine->buffer_used_bytes = 0; - engine->transaction_count = 0; - engine->engine_keep_power_up_count = 1; -} - -struct i2c_engine *dal_i2c_hw_engine_dce80_create( - const struct i2c_hw_engine_dce80_create_arg *arg) -{ - struct i2c_hw_engine_dce80 *engine; - - if (!arg) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - if ((arg->engine_id >= sizeof(ddc_setup_offset) / sizeof(int32_t)) || - (arg->engine_id >= sizeof(ddc_speed_offset) / sizeof(int32_t)) || - !arg->reference_frequency) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - engine = kzalloc(sizeof(struct i2c_hw_engine_dce80), GFP_KERNEL); - - if (!engine) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - construct(engine, arg); - return &engine->base.base; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h deleted file mode 100644 index 5c6116fb5479..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_hw_engine_dce80.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.h deleted file mode 100644 index 26355c088746..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2c_sw_engine_dce80.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.c deleted file mode 100644 index ed48596dd2a5..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.c +++ /dev/null @@ -1,284 +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" - -/* - * 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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.h b/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.h deleted file mode 100644 index 21908629e973..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce80/i2caux_dce80.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.c b/drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.c deleted file mode 100644 index a59c1f50c1e8..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.c +++ /dev/null @@ -1,120 +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 "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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.h b/drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.h deleted file mode 100644 index aeb4a86463d4..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dcn10/i2caux_dcn10.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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__ */ diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.c b/drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.c deleted file mode 100644 index e6408f644086..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * 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; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.h b/drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.h deleted file mode 100644 index a83eeb748283..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/diagnostics/i2caux_diag.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * 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__ */ diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/engine.h b/drivers/gpu/drm/amd/display/dc/i2caux/engine.h deleted file mode 100644 index b16fb1ff687d..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/engine.h +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_ENGINE_H__ -#define __DAL_ENGINE_H__ - -#include "dc_ddc_types.h" - -enum i2caux_transaction_operation { - I2CAUX_TRANSACTION_READ, - I2CAUX_TRANSACTION_WRITE -}; - -enum i2caux_transaction_address_space { - I2CAUX_TRANSACTION_ADDRESS_SPACE_I2C = 1, - I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD -}; - -struct i2caux_transaction_payload { - enum i2caux_transaction_address_space address_space; - uint32_t address; - uint32_t length; - uint8_t *data; -}; - -enum i2caux_transaction_status { - I2CAUX_TRANSACTION_STATUS_UNKNOWN = (-1L), - I2CAUX_TRANSACTION_STATUS_SUCCEEDED, - I2CAUX_TRANSACTION_STATUS_FAILED_CHANNEL_BUSY, - I2CAUX_TRANSACTION_STATUS_FAILED_TIMEOUT, - I2CAUX_TRANSACTION_STATUS_FAILED_PROTOCOL_ERROR, - I2CAUX_TRANSACTION_STATUS_FAILED_NACK, - I2CAUX_TRANSACTION_STATUS_FAILED_INCOMPLETE, - I2CAUX_TRANSACTION_STATUS_FAILED_OPERATION, - I2CAUX_TRANSACTION_STATUS_FAILED_INVALID_OPERATION, - I2CAUX_TRANSACTION_STATUS_FAILED_BUFFER_OVERFLOW, - I2CAUX_TRANSACTION_STATUS_FAILED_HPD_DISCON -}; - -struct i2caux_transaction_request { - enum i2caux_transaction_operation operation; - struct i2caux_transaction_payload payload; - enum i2caux_transaction_status status; -}; - -enum i2caux_engine_type { - I2CAUX_ENGINE_TYPE_UNKNOWN = (-1L), - I2CAUX_ENGINE_TYPE_AUX, - I2CAUX_ENGINE_TYPE_I2C_DDC_HW, - I2CAUX_ENGINE_TYPE_I2C_GENERIC_HW, - I2CAUX_ENGINE_TYPE_I2C_SW -}; - -enum i2c_default_speed { - I2CAUX_DEFAULT_I2C_HW_SPEED = 50, - I2CAUX_DEFAULT_I2C_SW_SPEED = 50 -}; - -struct engine; - -struct engine_funcs { - enum i2caux_engine_type (*get_engine_type)( - const struct engine *engine); - 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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/engine_base.c b/drivers/gpu/drm/amd/display/dc/i2caux/engine_base.c deleted file mode 100644 index 5d155d36d353..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/engine_base.c +++ /dev/null @@ -1,52 +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" - -/* - * 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 */ -} - diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.c b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.c deleted file mode 100644 index 70e20bd47ce4..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.c +++ /dev/null @@ -1,118 +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" - -/* - * 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); -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.h b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.h deleted file mode 100644 index ded6ea34b714..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_engine.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.c b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.c deleted file mode 100644 index 5a4295e0fae5..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.c +++ /dev/null @@ -1,284 +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" - -/* - * 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); -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.h b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.h deleted file mode 100644 index 1da0397b04a2..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_generic_hw_engine.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.c b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.c deleted file mode 100644 index 141898533e8e..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.c +++ /dev/null @@ -1,251 +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 "i2c_engine.h" - -/* - * Header of this unit - */ - -#include "i2c_hw_engine.h" - -/* - * Post-requisites: headers required by this unit - */ - -/* - * This unit - */ - -/* - * @brief - * Cast 'struct i2c_engine *' - * to 'struct i2c_hw_engine *' - */ -#define FROM_I2C_ENGINE(ptr) \ - container_of((ptr), struct i2c_hw_engine, base) - -/* - * @brief - * Cast 'struct engine *' - * to 'struct i2c_hw_engine *' - */ -#define FROM_ENGINE(ptr) \ - FROM_I2C_ENGINE(container_of((ptr), struct i2c_engine, base)) - -enum i2caux_engine_type dal_i2c_hw_engine_get_engine_type( - const struct engine *engine) -{ - return I2CAUX_ENGINE_TYPE_I2C_DDC_HW; -} - -bool dal_i2c_hw_engine_submit_request( - struct engine *engine, - struct i2caux_transaction_request *i2caux_request, - bool middle_of_transaction) -{ - struct i2c_hw_engine *hw_engine = FROM_ENGINE(engine); - - struct i2c_request_transaction_data request; - - uint32_t transaction_timeout; - - enum i2c_channel_operation_result operation_result; - - bool result = false; - - /* We need following: - * transaction length will not exceed - * the number of free bytes in HW buffer (minus one for address)*/ - - if (i2caux_request->payload.length >= - hw_engine->funcs->get_hw_buffer_available_size(hw_engine)) { - i2caux_request->status = - I2CAUX_TRANSACTION_STATUS_FAILED_BUFFER_OVERFLOW; - return false; - } - - if (i2caux_request->operation == I2CAUX_TRANSACTION_READ) - request.action = middle_of_transaction ? - I2CAUX_TRANSACTION_ACTION_I2C_READ_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_READ; - else if (i2caux_request->operation == I2CAUX_TRANSACTION_WRITE) - request.action = middle_of_transaction ? - I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_WRITE; - else { - i2caux_request->status = - I2CAUX_TRANSACTION_STATUS_FAILED_INVALID_OPERATION; - /* [anaumov] in DAL2, there was no "return false" */ - return false; - } - - request.address = (uint8_t)i2caux_request->payload.address; - request.length = i2caux_request->payload.length; - request.data = i2caux_request->payload.data; - - /* obtain timeout value before submitting request */ - - transaction_timeout = hw_engine->funcs->get_transaction_timeout( - hw_engine, i2caux_request->payload.length + 1); - - hw_engine->base.funcs->submit_channel_request( - &hw_engine->base, &request); - /* EVENT_LOG_AUX_REQ(engine->ddc->pin_data->en, EVENT_LOG_AUX_ORIGIN_I2C, */ - /* request.action, request.address, request.length, request.data); */ - - if ((request.status == I2C_CHANNEL_OPERATION_FAILED) || - (request.status == I2C_CHANNEL_OPERATION_ENGINE_BUSY)) { - i2caux_request->status = - I2CAUX_TRANSACTION_STATUS_FAILED_CHANNEL_BUSY; - return false; - } - - /* wait until transaction proceed */ - - operation_result = hw_engine->funcs->wait_on_operation_result( - hw_engine, - transaction_timeout, - I2C_CHANNEL_OPERATION_ENGINE_BUSY); - - /* 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; - } - - if (result && (i2caux_request->operation == I2CAUX_TRANSACTION_READ)) { - struct i2c_reply_transaction_data reply; - - reply.data = i2caux_request->payload.data; - reply.length = i2caux_request->payload.length; - - hw_engine->base.funcs-> - process_channel_reply(&hw_engine->base, &reply); - /* EVENT_LOG_AUX_REP(engine->ddc->pin_data->en, EVENT_LOG_AUX_ORIGIN_I2C, */ - /* AUX_TRANSACTION_REPLY_I2C_ACK, reply.length, reply.data); */ - } - - - - return result; -} - -bool dal_i2c_hw_engine_acquire_engine( - struct i2c_engine *engine, - struct ddc *ddc) -{ - enum gpio_result result; - uint32_t current_speed; - - result = dal_ddc_open(ddc, GPIO_MODE_HARDWARE, - GPIO_DDC_CONFIG_TYPE_MODE_I2C); - - if (result != GPIO_RESULT_OK) - return false; - - engine->base.ddc = ddc; - - current_speed = engine->funcs->get_speed(engine); - - if (current_speed) - FROM_I2C_ENGINE(engine)->original_speed = current_speed; - - return true; -} -/* - * @brief - * Queries in a loop for current engine status - * until retrieved status matches 'expected_result', or timeout occurs. - * Timeout given in microseconds - * and the status query frequency is also one per microsecond. - */ -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) -{ - enum i2c_channel_operation_result result; - uint32_t i = 0; - - if (!timeout) - return I2C_CHANNEL_OPERATION_SUCCEEDED; - - do { - result = engine->base.funcs->get_channel_status( - &engine->base, NULL); - - if (result != expected_result) - break; - - udelay(1); - - ++i; - } while (i < timeout); - - return result; -} - -void dal_i2c_hw_engine_construct( - struct i2c_hw_engine *engine, - struct dc_context *ctx) -{ - dal_i2c_engine_construct(&engine->base, ctx); - engine->original_speed = I2CAUX_DEFAULT_I2C_HW_SPEED; - engine->default_speed = I2CAUX_DEFAULT_I2C_HW_SPEED; -} - -void dal_i2c_hw_engine_destruct( - struct i2c_hw_engine *engine) -{ - dal_i2c_engine_destruct(&engine->base); -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.h b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.h deleted file mode 100644 index 8936a994804a..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.h +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_sw_engine.c b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_sw_engine.c deleted file mode 100644 index 8e19bb629394..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_sw_engine.c +++ /dev/null @@ -1,601 +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" - -/* - * Pre-requisites: headers required by header of this unit - */ -#include "include/i2caux_interface.h" -#include "engine.h" -#include "i2c_engine.h" - -/* - * Header of this unit - */ - -#include "i2c_sw_engine.h" - -/* - * Post-requisites: headers required by this unit - */ - -/* - * This unit - */ - -#define SCL false -#define SDA true - -static inline bool read_bit_from_ddc( - struct ddc *ddc, - bool data_nor_clock) -{ - uint32_t value = 0; - - if (data_nor_clock) - dal_gpio_get_value(ddc->pin_data, &value); - else - dal_gpio_get_value(ddc->pin_clock, &value); - - return (value != 0); -} - -static inline void write_bit_to_ddc( - struct ddc *ddc, - bool data_nor_clock, - bool bit) -{ - uint32_t value = bit ? 1 : 0; - - if (data_nor_clock) - dal_gpio_set_value(ddc->pin_data, value); - else - dal_gpio_set_value(ddc->pin_clock, value); -} - -static bool wait_for_scl_high( - struct dc_context *ctx, - struct ddc *ddc, - uint16_t clock_delay_div_4) -{ - uint32_t scl_retry = 0; - uint32_t scl_retry_max = I2C_SW_TIMEOUT_DELAY / clock_delay_div_4; - - udelay(clock_delay_div_4); - - /* 3 milliseconds delay - * to wake up some displays from "low power" state. - */ - - do { - if (read_bit_from_ddc(ddc, SCL)) - return true; - - udelay(clock_delay_div_4); - - ++scl_retry; - } while (scl_retry <= scl_retry_max); - - return false; -} - -static bool start_sync( - struct dc_context *ctx, - struct ddc *ddc_handle, - uint16_t clock_delay_div_4) -{ - uint32_t retry = 0; - - /* The I2C communications start signal is: - * the SDA going low from high, while the SCL is high. */ - - write_bit_to_ddc(ddc_handle, SCL, true); - - udelay(clock_delay_div_4); - - do { - write_bit_to_ddc(ddc_handle, SDA, true); - - if (!read_bit_from_ddc(ddc_handle, SDA)) { - ++retry; - continue; - } - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SCL, true); - - if (!wait_for_scl_high(ctx, ddc_handle, clock_delay_div_4)) - break; - - write_bit_to_ddc(ddc_handle, SDA, false); - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SCL, false); - - udelay(clock_delay_div_4); - - return true; - } while (retry <= I2C_SW_RETRIES); - - return false; -} - -static bool stop_sync( - struct dc_context *ctx, - struct ddc *ddc_handle, - uint16_t clock_delay_div_4) -{ - uint32_t retry = 0; - - /* The I2C communications stop signal is: - * the SDA going high from low, while the SCL is high. */ - - write_bit_to_ddc(ddc_handle, SCL, false); - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SDA, false); - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SCL, true); - - if (!wait_for_scl_high(ctx, ddc_handle, clock_delay_div_4)) - return false; - - write_bit_to_ddc(ddc_handle, SDA, true); - - do { - udelay(clock_delay_div_4); - - if (read_bit_from_ddc(ddc_handle, SDA)) - return true; - - ++retry; - } while (retry <= 2); - - return false; -} - -static bool write_byte( - struct dc_context *ctx, - struct ddc *ddc_handle, - uint16_t clock_delay_div_4, - uint8_t byte) -{ - int32_t shift = 7; - bool ack; - - /* bits are transmitted serially, starting from MSB */ - - do { - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SDA, (byte >> shift) & 1); - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SCL, true); - - if (!wait_for_scl_high(ctx, ddc_handle, clock_delay_div_4)) - return false; - - write_bit_to_ddc(ddc_handle, SCL, false); - - --shift; - } while (shift >= 0); - - /* The display sends ACK by preventing the SDA from going high - * after the SCL pulse we use to send our last data bit. - * If the SDA goes high after that bit, it's a NACK */ - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SDA, true); - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SCL, true); - - if (!wait_for_scl_high(ctx, ddc_handle, clock_delay_div_4)) - return false; - - /* read ACK bit */ - - ack = !read_bit_from_ddc(ddc_handle, SDA); - - udelay(clock_delay_div_4 << 1); - - write_bit_to_ddc(ddc_handle, SCL, false); - - udelay(clock_delay_div_4 << 1); - - return ack; -} - -static bool read_byte( - struct dc_context *ctx, - struct ddc *ddc_handle, - uint16_t clock_delay_div_4, - uint8_t *byte, - bool more) -{ - int32_t shift = 7; - - uint8_t data = 0; - - /* The data bits are read from MSB to LSB; - * bit is read while SCL is high */ - - do { - write_bit_to_ddc(ddc_handle, SCL, true); - - if (!wait_for_scl_high(ctx, ddc_handle, clock_delay_div_4)) - return false; - - if (read_bit_from_ddc(ddc_handle, SDA)) - data |= (1 << shift); - - write_bit_to_ddc(ddc_handle, SCL, false); - - udelay(clock_delay_div_4 << 1); - - --shift; - } while (shift >= 0); - - /* read only whole byte */ - - *byte = data; - - udelay(clock_delay_div_4); - - /* send the acknowledge bit: - * SDA low means ACK, SDA high means NACK */ - - write_bit_to_ddc(ddc_handle, SDA, !more); - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SCL, true); - - if (!wait_for_scl_high(ctx, ddc_handle, clock_delay_div_4)) - return false; - - write_bit_to_ddc(ddc_handle, SCL, false); - - udelay(clock_delay_div_4); - - write_bit_to_ddc(ddc_handle, SDA, true); - - udelay(clock_delay_div_4); - - return true; -} - -static bool i2c_write( - struct dc_context *ctx, - struct ddc *ddc_handle, - uint16_t clock_delay_div_4, - uint8_t address, - uint32_t length, - const uint8_t *data) -{ - uint32_t i = 0; - - if (!write_byte(ctx, ddc_handle, clock_delay_div_4, address)) - return false; - - while (i < length) { - if (!write_byte(ctx, ddc_handle, clock_delay_div_4, data[i])) - return false; - ++i; - } - - return true; -} - -static bool i2c_read( - struct dc_context *ctx, - struct ddc *ddc_handle, - uint16_t clock_delay_div_4, - uint8_t address, - uint32_t length, - uint8_t *data) -{ - uint32_t i = 0; - - if (!write_byte(ctx, ddc_handle, clock_delay_div_4, address)) - return false; - - while (i < length) { - if (!read_byte(ctx, ddc_handle, clock_delay_div_4, data + i, - i < length - 1)) - return false; - ++i; - } - - return true; -} - -/* - * @brief - * Cast 'struct i2c_engine *' - * to 'struct i2c_sw_engine *' - */ -#define FROM_I2C_ENGINE(ptr) \ - container_of((ptr), struct i2c_sw_engine, base) - -/* - * @brief - * Cast 'struct engine *' - * to 'struct i2c_sw_engine *' - */ -#define FROM_ENGINE(ptr) \ - FROM_I2C_ENGINE(container_of((ptr), struct i2c_engine, base)) - -enum i2caux_engine_type dal_i2c_sw_engine_get_engine_type( - const struct engine *engine) -{ - return I2CAUX_ENGINE_TYPE_I2C_SW; -} - -bool dal_i2c_sw_engine_submit_request( - struct engine *engine, - struct i2caux_transaction_request *i2caux_request, - bool middle_of_transaction) -{ - struct i2c_sw_engine *sw_engine = FROM_ENGINE(engine); - - struct i2c_engine *base = &sw_engine->base; - - struct i2c_request_transaction_data request; - bool operation_succeeded = false; - - if (i2caux_request->operation == I2CAUX_TRANSACTION_READ) - request.action = middle_of_transaction ? - I2CAUX_TRANSACTION_ACTION_I2C_READ_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_READ; - else if (i2caux_request->operation == I2CAUX_TRANSACTION_WRITE) - request.action = middle_of_transaction ? - I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT : - I2CAUX_TRANSACTION_ACTION_I2C_WRITE; - else { - i2caux_request->status = - I2CAUX_TRANSACTION_STATUS_FAILED_INVALID_OPERATION; - /* in DAL2, there was no "return false" */ - return false; - } - - request.address = (uint8_t)i2caux_request->payload.address; - request.length = i2caux_request->payload.length; - request.data = i2caux_request->payload.data; - - base->funcs->submit_channel_request(base, &request); - - if ((request.status == I2C_CHANNEL_OPERATION_ENGINE_BUSY) || - (request.status == I2C_CHANNEL_OPERATION_FAILED)) - i2caux_request->status = - I2CAUX_TRANSACTION_STATUS_FAILED_CHANNEL_BUSY; - else { - enum i2c_channel_operation_result operation_result; - - do { - operation_result = - base->funcs->get_channel_status(base, NULL); - - switch (operation_result) { - case I2C_CHANNEL_OPERATION_SUCCEEDED: - i2caux_request->status = - I2CAUX_TRANSACTION_STATUS_SUCCEEDED; - operation_succeeded = 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; - break; - } - } while (operation_result == I2C_CHANNEL_OPERATION_ENGINE_BUSY); - } - - return operation_succeeded; -} - -uint32_t dal_i2c_sw_engine_get_speed( - const struct i2c_engine *engine) -{ - return FROM_I2C_ENGINE(engine)->speed; -} - -void dal_i2c_sw_engine_set_speed( - struct i2c_engine *engine, - uint32_t speed) -{ - struct i2c_sw_engine *sw_engine = FROM_I2C_ENGINE(engine); - - ASSERT(speed); - - sw_engine->speed = speed ? speed : I2CAUX_DEFAULT_I2C_SW_SPEED; - - sw_engine->clock_delay = 1000 / sw_engine->speed; - - if (sw_engine->clock_delay < 12) - sw_engine->clock_delay = 12; -} - -bool dal_i2caux_i2c_sw_engine_acquire_engine( - struct i2c_engine *engine, - struct ddc *ddc) -{ - enum gpio_result result; - - result = dal_ddc_open(ddc, GPIO_MODE_FAST_OUTPUT, - GPIO_DDC_CONFIG_TYPE_MODE_I2C); - - if (result != GPIO_RESULT_OK) - return false; - - engine->base.ddc = ddc; - - return true; -} - -void dal_i2c_sw_engine_submit_channel_request( - struct i2c_engine *engine, - struct i2c_request_transaction_data *req) -{ - struct i2c_sw_engine *sw_engine = FROM_I2C_ENGINE(engine); - - struct ddc *ddc = engine->base.ddc; - uint16_t clock_delay_div_4 = sw_engine->clock_delay >> 2; - - /* send sync (start / repeated start) */ - - bool result = start_sync(engine->base.ctx, ddc, clock_delay_div_4); - - /* process payload */ - - if (result) { - switch (req->action) { - case I2CAUX_TRANSACTION_ACTION_I2C_WRITE: - case I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT: - result = i2c_write(engine->base.ctx, ddc, clock_delay_div_4, - req->address, req->length, req->data); - break; - case I2CAUX_TRANSACTION_ACTION_I2C_READ: - case I2CAUX_TRANSACTION_ACTION_I2C_READ_MOT: - result = i2c_read(engine->base.ctx, ddc, clock_delay_div_4, - req->address, req->length, req->data); - break; - default: - result = false; - break; - } - } - - /* send stop if not 'mot' or operation failed */ - - if (!result || - (req->action == I2CAUX_TRANSACTION_ACTION_I2C_WRITE) || - (req->action == I2CAUX_TRANSACTION_ACTION_I2C_READ)) - if (!stop_sync(engine->base.ctx, ddc, clock_delay_div_4)) - result = false; - - req->status = result ? - I2C_CHANNEL_OPERATION_SUCCEEDED : - I2C_CHANNEL_OPERATION_FAILED; -} - -enum i2c_channel_operation_result dal_i2c_sw_engine_get_channel_status( - struct i2c_engine *engine, - uint8_t *returned_bytes) -{ - /* No arbitration with VBIOS is performed since DCE 6.0 */ - return I2C_CHANNEL_OPERATION_SUCCEEDED; -} - -void dal_i2c_sw_engine_destruct( - struct i2c_sw_engine *engine) -{ - dal_i2c_engine_destruct(&engine->base); -} - -static void destroy( - struct i2c_engine **ptr) -{ - dal_i2c_sw_engine_destruct(FROM_I2C_ENGINE(*ptr)); - - kfree(*ptr); - *ptr = NULL; -} - -static const struct i2c_engine_funcs i2c_engine_funcs = { - .acquire_engine = dal_i2caux_i2c_sw_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 void release_engine( - struct engine *engine) -{ - -} - -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, -}; - -void dal_i2c_sw_engine_construct( - struct i2c_sw_engine *engine, - const struct i2c_sw_engine_create_arg *arg) -{ - dal_i2c_engine_construct(&engine->base, arg->ctx); - dal_i2c_sw_engine_set_speed(&engine->base, arg->default_speed); - engine->base.funcs = &i2c_engine_funcs; - engine->base.base.funcs = &engine_funcs; -} - -struct i2c_engine *dal_i2c_sw_engine_create( - const struct i2c_sw_engine_create_arg *arg) -{ - struct i2c_sw_engine *engine; - - if (!arg) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - engine = kzalloc(sizeof(struct i2c_sw_engine), GFP_KERNEL); - - if (!engine) { - BREAK_TO_DEBUGGER(); - return NULL; - } - - dal_i2c_sw_engine_construct(engine, arg); - return &engine->base; -} diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_sw_engine.h b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_sw_engine.h deleted file mode 100644 index 546f15b0d3f1..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_sw_engine.h +++ /dev/null @@ -1,81 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_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 diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.h b/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.h deleted file mode 100644 index 64f51bb06915..000000000000 --- a/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.h +++ /dev/null @@ -1,122 +0,0 @@ -/* - * Copyright 2012-15 Advanced Micro Devices, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: AMD - * - */ - -#ifndef __DAL_I2C_AUX_H__ -#define __DAL_I2C_AUX_H__ - -uint32_t dal_i2caux_get_reference_clock( - struct dc_bios *bios); - -struct i2caux; - -struct engine; - -struct i2caux_funcs { - void (*destroy)(struct i2caux **ptr); - struct i2c_engine * (*acquire_i2c_sw_engine)( - struct i2caux *i2caux, - struct ddc *ddc); - struct i2c_engine * (*acquire_i2c_hw_engine)( - struct i2caux *i2caux, - struct ddc *ddc); - struct aux_engine * (*acquire_aux_engine)( - struct i2caux *i2caux, - struct ddc *ddc); - void (*release_engine)( - struct i2caux *i2caux, - struct engine *engine); -}; - -struct i2c_engine; -struct aux_engine; - -struct i2caux { - struct dc_context *ctx; - const struct i2caux_funcs *funcs; - /* On ASIC we have certain amount of lines with HW DDC engine - * (4, 6, or maybe more in the future). - * For every such line, we create separate HW DDC engine - * (since we have these engines in HW) and separate SW DDC engine - * (to allow concurrent use of few lines). - * In similar way we have AUX engines. */ - - /* I2C SW engines, per DDC line. - * Only lines with HW DDC support will be initialized */ - struct i2c_engine *i2c_sw_engines[GPIO_DDC_LINE_COUNT]; - - /* I2C HW engines, per DDC line. - * Only lines with HW DDC support will be initialized */ - struct i2c_engine *i2c_hw_engines[GPIO_DDC_LINE_COUNT]; - - /* AUX engines, per DDC line. - * Only lines with HW AUX support will be initialized */ - struct aux_engine *aux_engines[GPIO_DDC_LINE_COUNT]; - - /* For all other lines, we can use - * single instance of generic I2C HW engine - * (since in HW, there is single instance of it) - * or single instance of generic I2C SW engine. - * AUX is not supported for other lines. */ - - /* General-purpose I2C SW engine. - * Can be assigned dynamically to any line per transaction */ - struct i2c_engine *i2c_generic_sw_engine; - - /* General-purpose I2C generic HW engine. - * Can be assigned dynamically to almost any line per transaction */ - struct i2c_engine *i2c_generic_hw_engine; - - /* [anaumov] in DAL2, there is a Mutex */ - - uint32_t aux_timeout_period; - - /* expressed in KHz */ - uint32_t default_i2c_sw_speed; - uint32_t default_i2c_hw_speed; -}; - -void dal_i2caux_construct( - struct i2caux *i2caux, - struct dc_context *ctx); - -void dal_i2caux_release_engine( - struct i2caux *i2caux, - struct engine *engine); - -void dal_i2caux_destruct( - struct i2caux *i2caux); - -void dal_i2caux_destroy( - struct i2caux **ptr); - -struct i2c_engine *dal_i2caux_acquire_i2c_sw_engine( - struct i2caux *i2caux, - struct ddc *ddc); - -struct aux_engine *dal_i2caux_acquire_aux_engine( - struct i2caux *i2caux, - struct ddc *ddc); - -#endif diff --git a/drivers/gpu/drm/amd/display/include/i2caux_interface.h b/drivers/gpu/drm/amd/display/include/i2caux_interface.h index 1b648fe041da..bb012cb1a9f5 100644 --- a/drivers/gpu/drm/amd/display/include/i2caux_interface.h +++ b/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 |
