path: root/sound/soc/sof/sof-priv.h

/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/*
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * Copyright(c) 2018 Intel Corporation. All rights reserved.
 *
 * Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
 */

#ifndef __SOUND_SOC_SOF_PRIV_H
#define __SOUND_SOC_SOF_PRIV_H

#include <linux/device.h>
#include <sound/hdaudio.h>
#include <sound/sof.h>
#include <sound/sof/info.h>
#include <sound/sof/pm.h>
#include <sound/sof/trace.h>
#include <uapi/sound/sof/fw.h>
#include <sound/sof/ext_manifest.h>

/* debug flags */
#define SOF_DBG_ENABLE_TRACE	BIT(0)
#define SOF_DBG_RETAIN_CTX	BIT(1)	/* prevent DSP D3 on FW exception */

#define SOF_DBG_DUMP_REGS		BIT(0)
#define SOF_DBG_DUMP_MBOX		BIT(1)
#define SOF_DBG_DUMP_TEXT		BIT(2)
#define SOF_DBG_DUMP_PCI		BIT(3)
#define SOF_DBG_DUMP_FORCE_ERR_LEVEL	BIT(4) /* used to dump dsp status with error log level */


/* global debug state set by SOF_DBG_ flags */
extern int sof_core_debug;

/* max BARs mmaped devices can use */
#define SND_SOF_BARS	8

/* time in ms for runtime suspend delay */
#define SND_SOF_SUSPEND_DELAY_MS	2000

/* DMA buffer size for trace */
#define DMA_BUF_SIZE_FOR_TRACE (PAGE_SIZE * 16)

#define SOF_IPC_DSP_REPLY		0
#define SOF_IPC_HOST_REPLY		1

/* convenience constructor for DAI driver streams */
#define SOF_DAI_STREAM(sname, scmin, scmax, srates, sfmt) \
	{.stream_name = sname, .channels_min = scmin, .channels_max = scmax, \
	 .rates = srates, .formats = sfmt}

#define SOF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \
	SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_FLOAT)

#define ENABLE_DEBUGFS_CACHEBUF \
	(IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_ENABLE_DEBUGFS_CACHE) || \
	 IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_IPC_FLOOD_TEST))

/* So far the primary core on all DSPs has ID 0 */
#define SOF_DSP_PRIMARY_CORE 0

/* DSP power state */
enum sof_dsp_power_states {
	SOF_DSP_PM_D0,
	SOF_DSP_PM_D1,
	SOF_DSP_PM_D2,
	SOF_DSP_PM_D3_HOT,
	SOF_DSP_PM_D3,
	SOF_DSP_PM_D3_COLD,
};

struct sof_dsp_power_state {
	u32 state;
	u32 substate; /* platform-specific */
};

/* System suspend target state */
enum sof_system_suspend_state {
	SOF_SUSPEND_NONE = 0,
	SOF_SUSPEND_S0IX,
	SOF_SUSPEND_S3,
};

struct snd_sof_dev;
struct snd_sof_ipc_msg;
struct snd_sof_ipc;
struct snd_sof_debugfs_map;
struct snd_soc_tplg_ops;
struct snd_soc_component;
struct snd_sof_pdata;

/*
 * SOF DSP HW abstraction operations.
 * Used to abstract DSP HW architecture and any IO busses between host CPU
 * and DSP device(s).
 */
struct snd_sof_dsp_ops {

	/* probe and remove */
	int (*probe)(struct snd_sof_dev *sof_dev); /* mandatory */
	int (*remove)(struct snd_sof_dev *sof_dev); /* optional */

	/* DSP core boot / reset */
	int (*run)(struct snd_sof_dev *sof_dev); /* mandatory */
	int (*stall)(struct snd_sof_dev *sof_dev, unsigned int core_mask); /* optional */
	int (*reset)(struct snd_sof_dev *sof_dev); /* optional */
	int (*core_power_up)(struct snd_sof_dev *sof_dev,
			     unsigned int core_mask); /* optional */
	int (*core_power_down)(struct snd_sof_dev *sof_dev,
			       unsigned int core_mask); /* optional */

	/*
	 * Register IO: only used by respective drivers themselves,
	 * TODO: consider removing these operations and calling respective
	 * implementations directly
	 */
	void (*write)(struct snd_sof_dev *sof_dev, void __iomem *addr,
		      u32 value); /* optional */
	u32 (*read)(struct snd_sof_dev *sof_dev,
		    void __iomem *addr); /* optional */
	void (*write64)(struct snd_sof_dev *sof_dev, void __iomem *addr,
			u64 value); /* optional */
	u64 (*read64)(struct snd_sof_dev *sof_dev,
		      void __iomem *addr); /* optional */

	/* memcpy IO */
	void (*block_read)(struct snd_sof_dev *sof_dev, u32 bar,
			   u32 offset, void *dest,
			   size_t size); /* mandatory */
	void (*block_write)(struct snd_sof_dev *sof_dev, u32 bar,
			    u32 offset, void *src,
			    size_t size); /* mandatory */

	/* doorbell */
	irqreturn_t (*irq_handler)(int irq, void *context); /* optional */
	irqreturn_t (*irq_thread)(int irq, void *context); /* optional */

	/* ipc */
	int (*send_msg)(struct snd_sof_dev *sof_dev,
			struct snd_sof_ipc_msg *msg); /* mandatory */

	/* FW loading */
	int (*load_firmware)(struct snd_sof_dev *sof_dev); /* mandatory */
	int (*load_module)(struct snd_sof_dev *sof_dev,
			   struct snd_sof_mod_hdr *hdr); /* optional */
	/*
	 * FW ready checks for ABI compatibility and creates
	 * memory windows at first boot
	 */
	int (*fw_ready)(struct snd_sof_dev *sdev, u32 msg_id); /* mandatory */

	/* connect pcm substream to a host stream */
	int (*pcm_open)(struct snd_sof_dev *sdev,
			struct snd_pcm_substream *substream); /* optional */
	/* disconnect pcm substream to a host stream */
	int (*pcm_close)(struct snd_sof_dev *sdev,
			 struct snd_pcm_substream *substream); /* optional */

	/* host stream hw params */
	int (*pcm_hw_params)(struct snd_sof_dev *sdev,
			     struct snd_pcm_substream *substream,
			     struct snd_pcm_hw_params *params,
			     struct sof_ipc_stream_params *ipc_params); /* optional */

	/* host stream hw_free */
	int (*pcm_hw_free)(struct snd_sof_dev *sdev,
			   struct snd_pcm_substream *substream); /* optional */

	/* host stream trigger */
	int (*pcm_trigger)(struct snd_sof_dev *sdev,
			   struct snd_pcm_substream *substream,
			   int cmd); /* optional */

	/* host stream pointer */
	snd_pcm_uframes_t (*pcm_pointer)(struct snd_sof_dev *sdev,
					 struct snd_pcm_substream *substream); /* optional */

#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
	/* Except for probe_pointer, all probe ops are mandatory */
	int (*probe_assign)(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_soc_dai *dai); /* mandatory */
	int (*probe_free)(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_soc_dai *dai); /* mandatory */
	int (*probe_set_params)(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_compr_params *params,
			struct snd_soc_dai *dai); /* mandatory */
	int (*probe_trigger)(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream, int cmd,
			struct snd_soc_dai *dai); /* mandatory */
	int (*probe_pointer)(struct snd_sof_dev *sdev,
			struct snd_compr_stream *cstream,
			struct snd_compr_tstamp *tstamp,
			struct snd_soc_dai *dai); /* optional */
#endif

	/* host read DSP stream data */
	void (*ipc_msg_data)(struct snd_sof_dev *sdev,
			     struct snd_pcm_substream *substream,
			     void *p, size_t sz); /* mandatory */

	/* host configure DSP HW parameters */
	int (*ipc_pcm_params)(struct snd_sof_dev *sdev,
			      struct snd_pcm_substream *substream,
			      const struct sof_ipc_pcm_params_reply *reply); /* mandatory */

	/* pre/post firmware run */
	int (*pre_fw_run)(struct snd_sof_dev *sof_dev); /* optional */
	int (*post_fw_run)(struct snd_sof_dev *sof_dev); /* optional */

	/* parse platform specific extended manifest, optional */
	int (*parse_platform_ext_manifest)(struct snd_sof_dev *sof_dev,
					   const struct sof_ext_man_elem_header *hdr);

	/* DSP PM */
	int (*suspend)(struct snd_sof_dev *sof_dev,
		       u32 target_state); /* optional */
	int (*resume)(struct snd_sof_dev *sof_dev); /* optional */
	int (*runtime_suspend)(struct snd_sof_dev *sof_dev); /* optional */
	int (*runtime_resume)(struct snd_sof_dev *sof_dev); /* optional */
	int (*runtime_idle)(struct snd_sof_dev *sof_dev); /* optional */
	int (*set_hw_params_upon_resume)(struct snd_sof_dev *sdev); /* optional */
	int (*set_power_state)(struct snd_sof_dev *sdev,
			       const</