110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
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*/
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#ifndef __SDW_AMD_H
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#define __SDW_AMD_H
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#include <linux/soundwire/sdw.h>
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/* AMD pm_runtime quirk definitions */
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/*
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* Force the clock to stop(ClockStopMode0) when suspend callback
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* is invoked.
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*/
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#define AMD_SDW_CLK_STOP_MODE 1
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/*
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* Stop the bus when runtime suspend/system level suspend callback
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* is invoked. If set, a complete bus reset and re-enumeration will
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* be performed when the bus restarts. In-band wake interrupts are
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* not supported in this mode.
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*/
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#define AMD_SDW_POWER_OFF_MODE 2
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#define ACP_SDW0 0
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#define ACP_SDW1 1
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struct acp_sdw_pdata {
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u16 instance;
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/* mutex to protect acp common register access */
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struct mutex *acp_sdw_lock;
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};
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struct sdw_manager_reg_mask {
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u32 sw_pad_enable_mask;
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u32 sw_pad_pulldown_mask;
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u32 acp_sdw_intr_mask;
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};
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/**
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* struct sdw_amd_dai_runtime: AMD sdw dai runtime data
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*
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* @name: SoundWire stream name
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* @stream: stream runtime
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* @bus: Bus handle
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* @stream_type: Stream type
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*/
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struct sdw_amd_dai_runtime {
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char *name;
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struct sdw_stream_runtime *stream;
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struct sdw_bus *bus;
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enum sdw_stream_type stream_type;
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};
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/**
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* struct amd_sdw_manager - amd manager driver context
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* @bus: bus handle
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* @dev: linux device
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* @mmio: SoundWire registers mmio base
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* @acp_mmio: acp registers mmio base
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* @reg_mask: register mask structure per manager instance
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* @amd_sdw_irq_thread: SoundWire manager irq workqueue
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* @amd_sdw_work: peripheral status work queue
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* @probe_work: SoundWire manager probe workqueue
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* @acp_sdw_lock: mutex to protect acp share register access
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* @status: peripheral devices status array
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* @num_din_ports: number of input ports
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* @num_dout_ports: number of output ports
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* @cols_index: Column index in frame shape
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* @rows_index: Rows index in frame shape
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* @instance: SoundWire manager instance
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* @quirks: SoundWire manager quirks
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* @wake_en_mask: wake enable mask per SoundWire manager
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* @clk_stopped: flag set to true when clock is stopped
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* @power_mode_mask: flag interprets amd SoundWire manager power mode
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* @dai_runtime_array: dai runtime array
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*/
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struct amd_sdw_manager {
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struct sdw_bus bus;
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struct device *dev;
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void __iomem *mmio;
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void __iomem *acp_mmio;
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struct sdw_manager_reg_mask *reg_mask;
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struct work_struct amd_sdw_irq_thread;
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struct work_struct amd_sdw_work;
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struct work_struct probe_work;
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/* mutex to protect acp common register access */
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struct mutex *acp_sdw_lock;
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enum sdw_slave_status status[SDW_MAX_DEVICES + 1];
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int num_din_ports;
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int num_dout_ports;
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int cols_index;
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int rows_index;
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u32 instance;
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u32 quirks;
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u32 wake_en_mask;
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u32 power_mode_mask;
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bool clk_stopped;
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struct sdw_amd_dai_runtime **dai_runtime_array;
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};
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#endif
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