1 files changed, 635 insertions, 0 deletions

diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
new file mode 100644
index 000000000000..1e85d6f9c5c3
--- /dev/null
+++ b/sound/soc/sof/sof-priv.h
@@ -0,0 +1,635 @@
+/* SPDX-License-Identifier: (GPL-2.0 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/soc.h>
+
+#include <sound/sof.h>
+#include <sound/sof/stream.h> /* needs to be included before control.h */
+#include <sound/sof/control.h>
+#include <sound/sof/dai.h>
+#include <sound/sof/info.h>
+#include <sound/sof/pm.h>
+#include <sound/sof/topology.h>
+#include <sound/sof/trace.h>
+
+#include <uapi/sound/sof/fw.h>
+
+/* debug flags */
+#define SOF_DBG_REGS	BIT(1)
+#define SOF_DBG_MBOX	BIT(2)
+#define SOF_DBG_TEXT	BIT(3)
+#define SOF_DBG_PCI	BIT(4)
+
+/* 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)
+
+/* max number of FE PCMs before BEs */
+#define SOF_BE_PCM_BASE		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)
+
+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); /* 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); /* optional */
+
+	/* 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 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 */
+
+	/* 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 */
+
+	/* DSP PM */
+	int (*suspend)(struct snd_sof_dev *sof_dev, int state); /* optional */
+	int (*resume)(struct snd_sof_dev *sof_dev); /* optional */
+	int (*runtime_suspend)(struct snd_sof_dev *sof_dev,
+			       int state); /* optional */
+	int (*runtime_resume)(struct snd_sof_dev *sof_dev); /* optional */
+	void (*set_hw_params_upon_resume)(struct snd_sof_dev *sdev); /* optional */
+
+	/* DSP clocking */
+	int (*set_clk)(struct snd_sof_dev *sof_dev, u32 freq); /* optional */
+
+	/* debug */
+	const struct snd_sof_debugfs_map *debug_map; /* optional */
+	int debug_map_count; /* optional */
+	void (*dbg_dump)(struct snd_sof_dev *sof_dev,
+			 u32 flags); /* optional */
+	void (*ipc_dump)(struct snd_sof_dev *sof_dev); /* optional */
+
+	/* host DMA trace initialization */
+	int (*trace_init)(struct snd_sof_dev *sdev,
+			  u32 *stream_tag); /* optional */
+	int (*trace_release)(struct snd_sof_dev *sdev); /* optional */
+	int (*trace_trigger)(struct snd_sof_dev *sdev,
+			     int cmd); /* optional */
+
+	/* DAI ops */
+	struct snd_soc_dai_driver *drv;
+	int num_drv;
+};
+
+/* DSP architecture specific callbacks for oops and stack dumps */
+struct sof_arch_ops {
+	void (*dsp_oops)(struct snd_sof_dev *sdev, void *oops);
+	void (*dsp_stack)(struct snd_sof_dev *sdev, void *oops,
+			  u32 *stack, u32 stack_words);
+};
+
+#define sof_arch_ops(sdev) ((sdev)->pdata->desc->arch_ops)
+
+/* DSP device HW descriptor mapping between bus ID and ops */
+struct sof_ops_table {
+	const struct sof_dev_desc *desc;
+	const struct snd_sof_dsp_ops *ops;
+};
+
+enum sof_dfsentry_type {
+	SOF_DFSENTRY_TYPE_IOMEM = 0,
+	SOF_DFSENTRY_TYPE_BUF,
+};
+
+enum sof_debugfs_access_type {
+	SOF_DEBUGFS_ACCESS_ALWAYS = 0,
+	SOF_DEBUGFS_ACCESS_D0_ONLY,
+};
+
+/* FS entry for debug files that can expose DSP memories, registers */
+struct snd_sof_dfsentry {
+	struct dentry *dfsentry;
+	size_t size;
+	enum sof_dfsentry_type type;
+	/*
+	 * access_type specifies if the
+	 * memory -> DSP resource (memory, register etc) is always accessible
+	 * or if it is accessible only when the DSP is in D0.
+	 */
+	enum sof_debugfs_access_type access_type;
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_ENABLE_DEBUGFS_CACHE)
+	char *cache_buf; /* buffer to cache the contents of debugfs memory */
+#endif
+	struct snd_sof_dev *sdev;
+	struct list_head list;  /* list in sdev dfsentry list */
+	union {
+		void __iomem *io_mem;
+		void *buf;
+	};
+};
+
+/* Debug mapping for any DSP memory or registers that can used for debug */
+struct snd_sof_debugfs_map {
+	const char *name;
+	u32 bar;
+	u32 offset;
+	u32 size;
+	/*
+	 * access_type specifies if the memory is always accessible
+	 * or if it is accessible only when the DSP is in D0.
+	 */
+	enum sof_debugfs_access_type access_type;
+};
+
+/* mailbox descriptor, used for host <-> DSP IPC */
+struct snd_sof_mailbox {
+	u32 offset;
+	size_t size;
+};
+
+/* IPC message descriptor for host <-> DSP IO */
+struct snd_sof_ipc_msg {
+	/* message data */
+	u32 header;
+	void *msg_data;
+	void *reply_data;
+	size_t msg_size;
+	size_t reply_size;
+	int reply_error;
+
+	wait_queue_head_t waitq;
+	bool ipc_complete;
+};
+
+/* PCM stream, mapped to FW component  */
+struct snd_sof_pcm_stream {
+	u32 comp_id;
+	struct snd_dma_buffer page_table;
+	struct sof_ipc_stream_posn posn;
+	struct snd_pcm_substream *substream;
+	struct work_struct period_elapsed_work;
+};
+
+/* ALSA SOF PCM device */
+struct snd_sof_pcm {
+	struct snd_sof_dev *sdev;
+	struct snd_soc_tplg_pcm pcm;
+	struct snd_sof_pcm_stream stream[2];
+	struct list_head list;	/* list in sdev pcm list */
+	struct snd_pcm_hw_params params[2];
+	int hw_params_upon_resume[2]; /* set up hw_params upon resume */
+};
+
+/* ALSA SOF Kcontrol device */
+struct snd_sof_control {
+	struct snd_sof_dev *sdev;
+	int comp_id;
+	int num_channels;
+	u32 readback_offset; /* offset to mmaped data if used */
+	struct sof_ipc_ctrl_data *control_data;
+	u32 size;	/* cdata size */
+	enum sof_ipc_ctrl_cmd cmd;
+	u32 *volume_table; /* volume table computed from tlv data*/
+
+	struct list_head list;	/* list in sdev control list */
+};
+
+/* ASoC SOF DAPM widget */
+struct snd_sof_widget {
+	struct snd_sof_dev *sdev;
+	int comp_id;
+	int pipeline_id;
+	int complete;
+	int id;
+
+	struct snd_soc_dapm_widget *widget;
+	struct list_head list;	/* list in sdev widget list */
+
+	void *private;		/* core does not touch this */
+};
+
+/* ASoC SOF DAPM route */
+struct snd_sof_route {
+	struct snd_sof_dev *sdev;
+
+	struct snd_soc_dapm_route *route;
+	struct list_head list;	/* list in sdev route list */
+
+	void *private;
+};
+
+/* ASoC DAI device */
+struct snd_sof_dai {
+	struct snd_sof_dev *sdev;
+	const char *name;
+
+	struct sof_ipc_comp_dai comp_dai;
+	struct sof_ipc_dai_config *dai_config;
+	struct list_head list;	/* list in sdev dai list */
+};
+
+/*
+ * SOF Device Level.
+ */
+struct snd_sof_dev {
+	struct device *dev;
+	spinlock_t ipc_lock;	/* lock for IPC users */
+	spinlock_t hw_lock;	/* lock for HW IO access */
+
+	/*
+	 * ASoC components. plat_drv fields are set dynamically so
+	 * can't use const
+	 */
+	struct snd_soc_component_driver plat_drv;
+
+	/* DSP firmware boot */
+	wait_queue_head_t boot_wait;
+	u32 boot_complete;
+	u32 first_boot;
+
+	/* work queue in case the probe is implemented in two steps */
+	struct work_struct probe_work;
+
+	/* DSP HW differentiation */
+	struct snd_sof_pdata *pdata;
+
+	/* IPC */
+	struct snd_sof_ipc *ipc;
+	struct snd_sof_mailbox dsp_box;		/* DSP initiated IPC */
+	struct snd_sof_mailbox host_box;	/* Host initiated IPC */
+	struct snd_sof_mailbox stream_box;	/* Stream position update */
+	struct snd_sof_ipc_msg *msg;
+	int ipc_irq;
+	u32 next_comp_id; /* monotonic - reset during S3 */
+
+	/* memory bases for mmaped DSPs - set by dsp_init() */
+	void __iomem *bar[SND_SOF_BARS];	/* DSP base address */
+	int mmio_bar;
+	int mailbox_bar;
+	size_t dsp_oops_offset;
+
+	/* debug */
+	struct dentry *debugfs_root;
+	struct list_head dfsentry_list;
+
+	/* firmware loader */
+	struct snd_dma_buffer dmab;
+	struct snd_dma_buffer dmab_bdl;
+	struct sof_ipc_fw_ready fw_ready;
+	struct sof_ipc_fw_version fw_version;
+
+	/* topology */
+	struct snd_soc_tplg_ops *tplg_ops;
+	struct list_head pcm_list;
+	struct list_head kcontrol_list;
+	struct list_head widget_list;
+	struct list_head dai_list;
+	struct list_head route_list;
+	struct snd_soc_component *component;
+	u32 enabled_cores_mask; /* keep track of enabled cores */
+
+	/* FW configuration */
+	struct sof_ipc_dma_buffer_data *info_buffer;
+	struct sof_ipc_window *info_window;
+
+	/* IPC timeouts in ms */
+	int ipc_timeout;
+	int boot_timeout;
+
+	/* Wait queue for code loading */
+	wait_queue_head_t waitq;
+	int code_loading;
+
+	/* DMA for Trace */
+	struct snd_dma_buffer dmatb;
+	struct snd_dma_buffer dmatp;
+	int dma_trace_pages;
+	wait_queue_head_t trace_sleep;
+	u32 host_offset;
+	u32 dtrace_is_enabled;
+	u32 dtrace_error;
+	u32 msi_enabled;
+
+	void *private;			/* core does not touch this */
+};
+
+/*
+ * Device Level.
+ */
+
+int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data);
+int snd_sof_device_remove(struct device *dev);
+
+int snd_sof_runtime_suspend(struct device *dev);
+int snd_sof_runtime_resume(struct device *dev);
+int snd_sof_resume(struct device *dev);
+int snd_sof_suspend(struct device *dev);
+
+void snd_sof_new_platform_drv(struct snd_sof_dev *sdev);
+
+int snd_sof_create_page_table(struct snd_sof_dev *sdev,
+			      struct snd_dma_buffer *dmab,
+			      unsigned char *page_table, size_t size);
+
+/*
+ * Firmware loading.
+ */
+int snd_sof_load_firmware(struct snd_sof_dev *sdev);
+int snd_sof_load_firmware_raw(struct snd_sof_dev *sdev);
+int snd_sof_load_firmware_memcpy(struct snd_sof_dev *sdev);
+int snd_sof_run_firmware(struct snd_sof_dev *sdev);
+int snd_sof_parse_module_memcpy(struct snd_sof_dev *sdev,
+				struct snd_sof_mod_hdr *module);
+void snd_sof_fw_unload(struct snd_sof_dev *sdev);
+int snd_sof_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 bar, u32 offset);
+
+/*
+ * IPC low level APIs.
+ */
+struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev);
+void snd_sof_ipc_free(struct snd_sof_dev *sdev);
+int snd_sof_ipc_reply(struct snd_sof_dev *sdev, u32 msg_id);
+void snd_sof_ipc_msgs_rx(struct snd_sof_dev *sdev);
+int snd_sof_ipc_stream_pcm_params(struct snd_sof_dev *sdev,
+				  struct sof_ipc_pcm_params *params);
+int snd_sof_dsp_mailbox_init(struct snd_sof_dev *sdev, u32 dspbox,
+			     size_t dspbox_size, u32 hostbox,
+			     size_t hostbox_size);
+int snd_sof_ipc_valid(struct snd_sof_dev *sdev);
+int sof_ipc_tx_message(struct snd_sof_ipc *ipc, u32 header,
+		       void *msg_data, size_t msg_bytes, void *reply_data,
+		       size_t reply_bytes);
+struct snd_sof_widget *snd_sof_find_swidget(struct snd_sof_dev *sdev,
+					    const char *name);
+struct snd_sof_widget *snd_sof_find_swidget_sname(struct snd_sof_dev *sdev,
+						  const char *pcm_name,
+						  int dir);
+struct snd_sof_dai *snd_sof_find_dai(struct snd_sof_dev *sdev,
+				     const char *name);
+
+static inline
+struct snd_sof_pcm *snd_sof_find_spcm_dai(struct snd_sof_dev *sdev,
+					  struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_sof_pcm *spcm = NULL;
+
+	list_for_each_entry(spcm, &sdev->pcm_list, list) {
+		if (le32_to_cpu(spcm->pcm.dai_id) == rtd->dai_link->id)
+			return spcm;
+	}
+
+	return NULL;
+}
+
+struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_sof_dev *sdev,
+					   const char *name);
+struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_sof_dev *sdev,
+					   unsigned int comp_id,
+					   int *direction);
+struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_sof_dev *sdev,
+					     unsigned int pcm_id);
+void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream);
+
+/*
+ * Stream IPC
+ */
+int snd_sof_ipc_stream_posn(struct snd_sof_dev *sdev,
+			    struct snd_sof_pcm *spcm, int direction,
+			    struct sof_ipc_stream_posn *posn);
+
+/*
+ * Mixer IPC
+ */
+int snd_sof_ipc_set_get_comp_data(struct snd_sof_ipc *ipc,
+				  struct snd_sof_control *scontrol, u32 ipc_cmd,
+				  enum sof_ipc_ctrl_type ctrl_type,
+				  enum sof_ipc_ctrl_cmd ctrl_cmd,
+				  bool send);
+
+/*
+ * Topology.
+ * There is no snd_sof_free_topology since topology components will
+ * be freed by snd_soc_unregister_component,
+ */
+int snd_sof_init_topology(struct snd_sof_dev *sdev,
+			  struct snd_soc_tplg_ops *ops);
+int snd_sof_load_topology(struct snd_sof_dev *sdev, const char *file);
+int snd_sof_complete_pipeline(struct snd_sof_dev *sdev,
+			      struct snd_sof_widget *swidget);
+
+int sof_load_pipeline_ipc(struct snd_sof_dev *sdev,
+			  struct sof_ipc_pipe_new *pipeline,
+			  struct sof_ipc_comp_reply *r);
+
+/*
+ * Trace/debug
+ */
+int snd_sof_init_trace(struct snd_sof_dev *sdev);
+void snd_sof_release_trace(struct snd_sof_dev *sdev);
+void snd_sof_free_trace(struct snd_sof_dev *sdev);
+int snd_sof_dbg_init(struct snd_sof_dev *sdev);
+void snd_sof_free_debug(struct snd_sof_dev *sdev);
+int snd_sof_debugfs_io_item(struct snd_sof_dev *sdev,
+			    void __iomem *base, size_t size,
+			    const char *name,
+			    enum sof_debugfs_access_type access_type);
+int snd_sof_debugfs_buf_item(struct snd_sof_dev *sdev,
+			     void *base, size_t size,
+			     const char *name);
+int snd_sof_trace_update_pos(struct snd_sof_dev *sdev,
+			     struct sof_ipc_dma_trace_posn *posn);
+void snd_sof_trace_notify_for_error(struct snd_sof_dev *sdev);
+void snd_sof_get_status(struct snd_sof_dev *sdev, u32 panic_code,
+			u32 tracep_code, void *oops,
+			struct sof_ipc_panic_info *panic_info,
+			void *stack, size_t stack_words);
+int snd_sof_init_trace_ipc(struct snd_sof_dev *sdev);
+
+/*
+ * Platform specific ops.
+ */
+extern struct snd_compr_ops sof_compressed_ops;
+
+/*
+ * Kcontrols.
+ */
+
+int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
+		       struct snd_ctl_elem_value *ucontrol);
+int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
+		       struct snd_ctl_elem_value *ucontrol);
+int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
+		       struct snd_ctl_elem_value *ucontrol);
+int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
+		       struct snd_ctl_elem_value *ucontrol);
+int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
+		     struct snd_ctl_elem_value *ucontrol);
+int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
+		     struct snd_ctl_elem_value *ucontrol);
+int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
+		      struct snd_ctl_elem_value *ucontrol);
+int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
+		      struct snd_ctl_elem_value *ucontrol);
+int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
+			  const unsigned int __user *binary_data,
+			  unsigned int size);
+int snd_sof_bytes_ext_get(struct snd_kcontrol *kcontrol,
+			  unsigned int __user *binary_data,
+			  unsigned int size);
+
+/*
+ * DSP Architectures.
+ */
+static inline void sof_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack,
+			     u32 stack_words)
+{
+	if (sof_arch_ops(sdev)->dsp_stack)
+		sof_arch_ops(sdev)->dsp_stack(sdev, oops, stack, stack_words);
+}
+
+static inline void sof_oops(struct snd_sof_dev *sdev, void *oops)
+{
+	if (sof_arch_ops(sdev)->dsp_oops)
+		sof_arch_ops(sdev)->dsp_oops(sdev, oops);
+}
+
+extern const struct sof_arch_ops sof_xtensa_arch_ops;
+
+/*
+ * Utilities
+ */
+void sof_io_write(struct snd_sof_dev *sdev, void __iomem *addr, u32 value);
+void sof_io_write64(struct snd_sof_dev *sdev, void __iomem *addr, u64 value);
+u32 sof_io_read(struct snd_sof_dev *sdev, void __iomem *addr);
+u64 sof_io_read64(struct snd_sof_dev *sdev, void __iomem *addr);
+void sof_mailbox_write(struct snd_sof_dev *sdev, u32 offset,
+		       void *message, size_t bytes);
+void sof_mailbox_read(struct snd_sof_dev *sdev, u32 offset,
+		      void *message, size_t bytes);
+void sof_block_write(struct snd_sof_dev *sdev, u32 bar, u32 offset, void *src,
+		     size_t size);
+void sof_block_read(struct snd_sof_dev *sdev, u32 bar, u32 offset, void *dest,
+		    size_t size);
+
+void intel_ipc_msg_data(struct snd_sof_dev *sdev,
+			struct snd_pcm_substream *substream,
+			void *p, size_t sz);
+int intel_ipc_pcm_params(struct snd_sof_dev *sdev,
+			 struct snd_pcm_substream *substream,
+			 const struct sof_ipc_pcm_params_reply *reply);
+
+int intel_pcm_open(struct snd_sof_dev *sdev,
+		   struct snd_pcm_substream *substream);
+int intel_pcm_close(struct snd_sof_dev *sdev,
+		    struct snd_pcm_substream *substream);
+
+#endif