| /* |
| * Copyright 2018 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 __DCE_I2C_HW_H__ |
| #define __DCE_I2C_HW_H__ |
| |
| 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, |
| DC_I2C_REG_RW_CNTL_STATUS_DMCU_ONLY = 2, |
| }; |
| |
| enum dc_i2c_arbitration { |
| DC_I2C_ARBITRATION__DC_I2C_SW_PRIORITY_NORMAL, |
| DC_I2C_ARBITRATION__DC_I2C_SW_PRIORITY_HIGH |
| }; |
| |
| 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 |
| }; |
| |
| |
| enum dce_i2c_transaction_action { |
| DCE_I2C_TRANSACTION_ACTION_I2C_WRITE = 0x00, |
| DCE_I2C_TRANSACTION_ACTION_I2C_READ = 0x10, |
| DCE_I2C_TRANSACTION_ACTION_I2C_STATUS_REQUEST = 0x20, |
| |
| DCE_I2C_TRANSACTION_ACTION_I2C_WRITE_MOT = 0x40, |
| DCE_I2C_TRANSACTION_ACTION_I2C_READ_MOT = 0x50, |
| DCE_I2C_TRANSACTION_ACTION_I2C_STATUS_REQUEST_MOT = 0x60, |
| |
| DCE_I2C_TRANSACTION_ACTION_DP_WRITE = 0x80, |
| DCE_I2C_TRANSACTION_ACTION_DP_READ = 0x90 |
| }; |
| |
| enum { |
| I2C_SETUP_TIME_LIMIT_DCE = 255, |
| I2C_SETUP_TIME_LIMIT_DCN = 3, |
| I2C_HW_BUFFER_SIZE_DCE100 = 538, |
| I2C_HW_BUFFER_SIZE_DCE = 144, |
| I2C_SEND_RESET_LENGTH_9 = 9, |
| I2C_SEND_RESET_LENGTH_10 = 10, |
| DEFAULT_I2C_HW_SPEED = 50, |
| DEFAULT_I2C_HW_SPEED_100KHZ = 100, |
| TRANSACTION_TIMEOUT_IN_I2C_CLOCKS = 32, |
| }; |
| |
| #define I2C_HW_ENGINE_COMMON_REG_LIST(id)\ |
| SRI(SETUP, DC_I2C_DDC, id),\ |
| SRI(SPEED, DC_I2C_DDC, id),\ |
| SRI(HW_STATUS, 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_HW_ENGINE_COMMON_REG_LIST_DCN30(id)\ |
| I2C_HW_ENGINE_COMMON_REG_LIST(id),\ |
| SR(DIO_MEM_PWR_CTRL),\ |
| SR(DIO_MEM_PWR_STATUS) |
| |
| #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_DDC1_HW_STATUS, DC_I2C_DDC1_HW_STATUS, mask_sh),\ |
| I2C_SF(DC_I2C_ARBITRATION, DC_I2C_SW_USE_I2C_REG_REQ, 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),\ |
| I2C_SF(MICROSECOND_TIME_BASE_DIV, MICROSECOND_TIME_BASE_DIV, mask_sh),\ |
| I2C_SF(DC_I2C_ARBITRATION, DC_I2C_REG_RW_CNTL_STATUS, 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 dce_i2c_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_DDC1_HW_STATUS; |
| uint8_t DC_I2C_SW_DONE_USING_I2C_REG; |
| uint8_t DC_I2C_SW_USE_I2C_REG_REQ; |
| 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; |
| uint8_t MICROSECOND_TIME_BASE_DIV; |
| uint8_t DC_I2C_DDC1_SEND_RESET_LENGTH; |
| uint8_t DC_I2C_REG_RW_CNTL_STATUS; |
| uint8_t I2C_LIGHT_SLEEP_FORCE; |
| uint8_t I2C_MEM_PWR_STATE; |
| }; |
| |
| struct dce_i2c_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_DDC1_HW_STATUS; |
| uint32_t DC_I2C_SW_DONE_USING_I2C_REG; |
| uint32_t DC_I2C_SW_USE_I2C_REG_REQ; |
| 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; |
| uint32_t MICROSECOND_TIME_BASE_DIV; |
| uint32_t DC_I2C_DDC1_SEND_RESET_LENGTH; |
| uint32_t DC_I2C_REG_RW_CNTL_STATUS; |
| uint32_t I2C_LIGHT_SLEEP_FORCE; |
| uint32_t I2C_MEM_PWR_STATE; |
| }; |
| |
| #define I2C_COMMON_MASK_SH_LIST_DCN2(mask_sh)\ |
| I2C_COMMON_MASK_SH_LIST_DCE110(mask_sh),\ |
| I2C_SF(DC_I2C_DDC1_SETUP, DC_I2C_DDC1_SEND_RESET_LENGTH, mask_sh) |
| |
| #define I2C_COMMON_MASK_SH_LIST_DCN30(mask_sh)\ |
| I2C_COMMON_MASK_SH_LIST_DCN2(mask_sh),\ |
| I2C_SF(DIO_MEM_PWR_CTRL, I2C_LIGHT_SLEEP_FORCE, mask_sh),\ |
| I2C_SF(DIO_MEM_PWR_STATUS, I2C_MEM_PWR_STATE, mask_sh) |
| |
| struct dce_i2c_registers { |
| uint32_t SETUP; |
| uint32_t SPEED; |
| uint32_t HW_STATUS; |
| 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; |
| uint32_t DIO_MEM_PWR_CTRL; |
| uint32_t DIO_MEM_PWR_STATUS; |
| }; |
| |
| enum dce_i2c_transaction_address_space { |
| DCE_I2C_TRANSACTION_ADDRESS_SPACE_I2C = 1, |
| DCE_I2C_TRANSACTION_ADDRESS_SPACE_DPCD |
| }; |
| |
| struct i2c_request_transaction_data { |
| enum dce_i2c_transaction_action action; |
| enum i2c_channel_operation_result status; |
| uint8_t address; |
| uint32_t length; |
| uint8_t *data; |
| }; |
| |
| struct dce_i2c_hw { |
| struct ddc *ddc; |
| uint32_t engine_keep_power_up_count; |
| uint32_t transaction_count; |
| uint32_t buffer_used_bytes; |
| uint32_t buffer_used_write; |
| uint32_t reference_frequency; |
| uint32_t default_speed; |
| uint32_t engine_id; |
| uint32_t setup_limit; |
| uint32_t send_reset_length; |
| uint32_t buffer_size; |
| struct dc_context *ctx; |
| |
| const struct dce_i2c_registers *regs; |
| const struct dce_i2c_shift *shifts; |
| const struct dce_i2c_mask *masks; |
| }; |
| |
| void dce_i2c_hw_construct( |
| struct dce_i2c_hw *dce_i2c_hw, |
| struct dc_context *ctx, |
| uint32_t engine_id, |
| const struct dce_i2c_registers *regs, |
| const struct dce_i2c_shift *shifts, |
| const struct dce_i2c_mask *masks); |
| |
| void dce100_i2c_hw_construct( |
| struct dce_i2c_hw *dce_i2c_hw, |
| struct dc_context *ctx, |
| uint32_t engine_id, |
| const struct dce_i2c_registers *regs, |
| const struct dce_i2c_shift *shifts, |
| const struct dce_i2c_mask *masks); |
| |
| void dce112_i2c_hw_construct( |
| struct dce_i2c_hw *dce_i2c_hw, |
| struct dc_context *ctx, |
| uint32_t engine_id, |
| const struct dce_i2c_registers *regs, |
| const struct dce_i2c_shift *shifts, |
| const struct dce_i2c_mask *masks); |
| |
| void dcn1_i2c_hw_construct( |
| struct dce_i2c_hw *dce_i2c_hw, |
| struct dc_context *ctx, |
| uint32_t engine_id, |
| const struct dce_i2c_registers *regs, |
| const struct dce_i2c_shift *shifts, |
| const struct dce_i2c_mask *masks); |
| |
| void dcn2_i2c_hw_construct( |
| struct dce_i2c_hw *dce_i2c_hw, |
| struct dc_context *ctx, |
| uint32_t engine_id, |
| const struct dce_i2c_registers *regs, |
| const struct dce_i2c_shift *shifts, |
| const struct dce_i2c_mask *masks); |
| |
| bool dce_i2c_submit_command_hw( |
| struct resource_pool *pool, |
| struct ddc *ddc, |
| struct i2c_command *cmd, |
| struct dce_i2c_hw *dce_i2c_hw); |
| |
| struct dce_i2c_hw *acquire_i2c_hw_engine( |
| struct resource_pool *pool, |
| struct ddc *ddc); |
| |
| #endif |
