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-rw-r--r--sound/soc/sof/sof-priv.h589
1 files changed, 589 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h
new file mode 100644
index 000000000..0aed2a7ab
--- /dev/null
+++ b/sound/soc/sof/sof-priv.h
@@ -0,0 +1,589 @@
+/* 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>
+
+/* debug flags */
+#define SOF_DBG_ENABLE_TRACE BIT(0)
+#define SOF_DBG_REGS BIT(1)
+#define SOF_DBG_MBOX BIT(2)
+#define SOF_DBG_TEXT BIT(3)
+#define SOF_DBG_PCI BIT(4)
+#define SOF_DBG_RETAIN_CTX BIT(5) /* prevent DSP D3 on FW exception */
+
+/* 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); /* 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 */
+
+ /* 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 struct sof_dsp_power_state *target_state); /* 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 */
+
+ /* misc */
+ int (*get_bar_index)(struct snd_sof_dev *sdev,
+ u32 type); /* optional */
+ int (*get_mailbox_offset)(struct snd_sof_dev *sdev);/* mandatory for common loader code */
+ int (*get_window_offset)(struct snd_sof_dev *sdev,
+ u32 id);/* mandatory for common loader code */
+
+ /* machine driver ops */
+ int (*machine_register)(struct snd_sof_dev *sdev,
+ void *pdata); /* optional */
+ void (*machine_unregister)(struct snd_sof_dev *sdev,
+ void *pdata); /* optional */
+ void (*machine_select)(struct snd_sof_dev *sdev); /* optional */
+ void (*set_mach_params)(const struct snd_soc_acpi_mach *mach,
+ struct device *dev); /* optional */
+
+ /* DAI ops */
+ struct snd_soc_dai_driver *drv;
+ int num_drv;
+
+ /* ALSA HW info flags, will be stored in snd_pcm_runtime.hw.info */
+ u32 hw_info;
+
+ const struct sof_arch_ops *arch_ops;
+};
+
+/* 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->ops->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 {
+ 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 ENABLE_DEBUGFS_CACHEBUF
+ 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;
+};
+
+enum snd_sof_fw_state {
+ SOF_FW_BOOT_NOT_STARTED = 0,
+ SOF_FW_BOOT_PREPARE,
+ SOF_FW_BOOT_IN_PROGRESS,
+ SOF_FW_BOOT_FAILED,
+ SOF_FW_BOOT_READY_FAILED, /* firmware booted but fw_ready op failed */
+ SOF_FW_BOOT_COMPLETE,
+};
+
+/*
+ * 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;
+
+ /* current DSP power state */
+ struct sof_dsp_power_state dsp_power_state;
+
+ /* Intended power target of system suspend */
+ enum sof_system_suspend_state system_suspend_target;
+
+ /* DSP firmware boot */
+ wait_queue_head_t boot_wait;
+ enum snd_sof_fw_state fw_state;
+ bool 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_mailbox debug_box; /* Debug info updates */
+ 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;
+ struct sof_ipc_cc_version *cc_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_window *info_window;
+
+ /* IPC timeouts in ms */
+ int ipc_timeout;
+ int boot_timeout;
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
+ unsigned int extractor_stream_tag;
+#endif
+
+ /* 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;
+ bool dtrace_is_supported; /* set with Kconfig or module parameter */
+ bool dtrace_is_enabled;
+ bool dtrace_error;
+ bool dtrace_draining;
+
+ bool 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_runtime_idle(struct device *dev);
+int snd_sof_resume(struct device *dev);
+int snd_sof_suspend(struct device *dev);
+int snd_sof_dsp_power_down_notify(struct snd_sof_dev *sdev);
+int snd_sof_prepare(struct device *dev);
+void snd_sof_complete(struct device *dev);
+
+void snd_sof_new_platform_drv(struct snd_sof_dev *sdev);
+
+int snd_sof_create_page_table(struct device *dev,
+ 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);
+void 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);
+int sof_ipc_tx_message_no_pm(struct snd_sof_ipc *ipc, u32 header,
+ void *msg_data, size_t msg_bytes,
+ void *reply_data, size_t reply_bytes);
+
+/*
+ * 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, mode_t mode);
+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);
+void snd_sof_handle_fw_exception(struct snd_sof_dev *sdev);
+
+/*
+ * Platform specific ops.
+ */
+extern struct snd_compress_ops sof_compressed_ops;
+
+/*
+ * DSP Architectures.
+ */
+static inline void sof_stack(struct snd_sof_dev *sdev, void *oops, u32 *stack,
+ u32 stack_words)
+{
+ 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);
+
+int sof_fw_ready(struct snd_sof_dev *sdev, u32 msg_id);
+
+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);
+
+int sof_machine_check(struct snd_sof_dev *sdev);
+
+#define sof_dev_dbg_or_err(dev, is_err, fmt, ...) \
+ do { \
+ if (is_err) \
+ dev_err(dev, "error: " fmt, __VA_ARGS__); \
+ else \
+ dev_dbg(dev, fmt, __VA_ARGS__); \
+ } while (0)
+
+#endif