/* 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 * * Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
*/
/* Flag definitions used in sof_core_debug (sof_debug module parameter) */ #define SOF_DBG_ENABLE_TRACE BIT(0) #define SOF_DBG_RETAIN_CTX BIT(1) /* prevent DSP D3 on FW exception */ #define SOF_DBG_VERIFY_TPLG BIT(2) /* verify topology during load */ #define SOF_DBG_DYNAMIC_PIPELINES_OVERRIDE BIT(3) /* 0: use topology token * 1: override topology
*/ #define SOF_DBG_DYNAMIC_PIPELINES_ENABLE BIT(4) /* 0: use static pipelines * 1: use dynamic pipelines
*/ #define SOF_DBG_DISABLE_MULTICORE BIT(5) /* schedule all pipelines/widgets * on primary core
*/ #define SOF_DBG_PRINT_ALL_DUMPS BIT(6) /* Print all ipc and dsp dumps */ #define SOF_DBG_IGNORE_D3_PERSISTENT BIT(7) /* ignore the DSP D3 persistent capability * and always download firmware upon D3 exit
*/ #define SOF_DBG_PRINT_DMA_POSITION_UPDATE_LOGS BIT(8) /* print DMA position updates * in dmesg logs
*/ #define SOF_DBG_PRINT_IPC_SUCCESS_LOGS BIT(9) /* print IPC success * in dmesg logs
*/ #define SOF_DBG_FORCE_NOCODEC BIT(10) /* ignore all codec-related * configurations
*/ #define SOF_DBG_DUMP_IPC_MESSAGE_PAYLOAD BIT(11) /* On top of the IPC message header * dump the message payload also
*/ #define SOF_DBG_DSPLESS_MODE BIT(15) /* Do not initialize and use the DSP */
/* Flag definitions used for controlling the DSP dump behavior */ #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) /* Output this dump (at the DEBUG level) only when SOF_DBG_PRINT_ALL_DUMPS is set */ #define SOF_DBG_DUMP_OPTIONAL BIT(4)
/* global debug state set by SOF_DBG_ flags */ bool sof_debug_check_flag(int mask);
/* 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
/** * struct snd_sof_platform_stream_params - platform dependent stream parameters * @phy_addr: Platform dependent address to be used, if @use_phy_addr * is true * @stream_tag: Stream tag to use * @use_phy_addr: Use the provided @phy_addr for configuration * @no_ipc_position: Disable position update IPC from firmware * @cont_update_posn: Continuous position update.
*/ struct snd_sof_platform_stream_params {
u32 phy_addr;
u16 stream_tag; bool use_phy_address; bool no_ipc_position; bool cont_update_posn;
};
/** * struct sof_firmware - Container struct for SOF firmware * @fw: Pointer to the firmware * @payload_offset: Offset of the data within the loaded firmware image to be * loaded to the DSP (skipping for example ext_manifest section)
*/ struct sof_firmware { conststruct firmware *fw;
u32 payload_offset;
};
enum sof_dai_access {
SOF_DAI_DSP_ACCESS, /* access from DSP only */
SOF_DAI_HOST_ACCESS, /* access from host only */
SOF_DAI_ACCESS_NUM
};
/* * 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 {
/* * optional callback to retrieve the number of frames left/arrived from/to * the DSP on the DAI side (link/codec/DMIC/etc). * * The callback is used when the firmware does not provide this information * via the shared SRAM window and it can be retrieved by host.
*/
u64 (*get_dai_frame_counter)(struct snd_sof_dev *sdev, struct snd_soc_component *component, struct snd_pcm_substream *substream); /* optional */
/* * Optional callback to retrieve the number of bytes left/arrived from/to * the DSP on the host side (bytes between host ALSA buffer and DSP). * * The callback is needed for ALSA delay reporting.
*/
u64 (*get_host_byte_counter)(struct snd_sof_dev *sdev, struct snd_soc_component *component, struct snd_pcm_substream *substream); /* optional */
/* host side configuration of the stream's data offset in stream mailbox area */ int (*set_stream_data_offset)(struct snd_sof_dev *sdev, struct snd_sof_pcm_stream *sps,
size_t posn_offset); /* optional */
/* 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, conststruct 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, conststruct sof_dsp_power_state *target_state); /* optional */
/* host DMA trace (IPC3) */ int (*trace_init)(struct snd_sof_dev *sdev, struct snd_dma_buffer *dmatb, struct sof_ipc_dma_trace_params_ext *dtrace_params); /* 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 */
/* FS entry for debug files that can expose DSP memories, registers */ struct snd_sof_dfsentry {
size_t size;
size_t buf_data_size; /* length of buffered data for file read operation */ 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 { constchar *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 {
size_t size;
u32 offset;
};
/* IPC message descriptor for host <-> DSP IO */ struct snd_sof_ipc_msg { /* message data */ void *msg_data; void *reply_data;
size_t msg_size;
size_t reply_size; int reply_error;
/** * struct sof_ipc_fw_tracing_ops - IPC-specific firmware tracing ops * @init: Function pointer for initialization of the tracing * @free: Optional function pointer for freeing of the tracing * @fw_crashed: Optional function pointer to notify the tracing of a firmware crash * @suspend: Function pointer for system/runtime suspend * @resume: Function pointer for system/runtime resume
*/ struct sof_ipc_fw_tracing_ops { int (*init)(struct snd_sof_dev *sdev); void (*free)(struct snd_sof_dev *sdev); void (*fw_crashed)(struct snd_sof_dev *sdev); void (*suspend)(struct snd_sof_dev *sdev, pm_message_t pm_state); int (*resume)(struct snd_sof_dev *sdev);
};
/** * struct sof_ipc_pm_ops - IPC-specific PM ops * @ctx_save: Optional function pointer for context save * @ctx_restore: Optional function pointer for context restore * @set_core_state: Optional function pointer for turning on/off a DSP core * @set_pm_gate: Optional function pointer for pm gate settings
*/ struct sof_ipc_pm_ops { int (*ctx_save)(struct snd_sof_dev *sdev); int (*ctx_restore)(struct snd_sof_dev *sdev); int (*set_core_state)(struct snd_sof_dev *sdev, int core_idx, bool on); int (*set_pm_gate)(struct snd_sof_dev *sdev, u32 flags);
};
/** * struct sof_ipc_fw_loader_ops - IPC/FW-specific loader ops * @validate: Function pointer for validating the firmware image * @parse_ext_manifest: Function pointer for parsing the manifest of the firmware * @load_fw_to_dsp: Optional function pointer for loading the firmware to the * DSP. * The function implements generic, hardware independent way * of loading the initial firmware and its modules (if any).
*/ struct sof_ipc_fw_loader_ops { int (*validate)(struct snd_sof_dev *sdev);
size_t (*parse_ext_manifest)(struct snd_sof_dev *sdev); int (*load_fw_to_dsp)(struct snd_sof_dev *sdev);
};
struct sof_ipc_tplg_ops; struct sof_ipc_pcm_ops;
/** * struct sof_ipc_ops - IPC-specific ops * @tplg: Pointer to IPC-specific topology ops * @pm: Pointer to PM ops * @pcm: Pointer to PCM ops * @fw_loader: Pointer to Firmware Loader ops * @fw_tracing: Optional pointer to Firmware tracing ops * * @init: Optional pointer for IPC related initialization * @exit: Optional pointer for IPC related cleanup * @post_fw_boot: Optional pointer to execute IPC related tasks after firmware * boot. * * @tx_msg: Function pointer for sending a 'short' IPC message * @set_get_data: Function pointer for set/get data ('large' IPC message). This * function may split up the 'large' message and use the @tx_msg * path to transfer individual chunks, or use other means to transfer * the message. * @get_reply: Function pointer for fetching the reply to * sdev->ipc->msg.reply_data * @rx_msg: Function pointer for handling a received message * * Note: both @tx_msg and @set_get_data considered as TX functions and they are * serialized for the duration of the instructed transfer. A large message sent * via @set_get_data is a single transfer even if at the hardware level it is * handled with multiple chunks.
*/ struct sof_ipc_ops { conststruct sof_ipc_tplg_ops *tplg; conststruct sof_ipc_pm_ops *pm; conststruct sof_ipc_pcm_ops *pcm; conststruct sof_ipc_fw_loader_ops *fw_loader; conststruct sof_ipc_fw_tracing_ops *fw_tracing;
int (*init)(struct snd_sof_dev *sdev); void (*exit)(struct snd_sof_dev *sdev); int (*post_fw_boot)(struct snd_sof_dev *sdev);
/* SOF generic IPC data */ struct snd_sof_ipc { struct snd_sof_dev *sdev;
/* protects messages and the disable flag */ struct mutex tx_mutex; /* disables further sending of ipc's */ bool disable_ipc_tx;
/* Maximum allowed size of a single IPC message/reply */
size_t max_payload_size;
struct snd_sof_ipc_msg msg;
/* IPC ops based on version */ conststruct sof_ipc_ops *ops;
};
/* Helper to retrieve the IPC ops */ #define sof_ipc_get_ops(sdev, ops_name) \
(((sdev)->ipc && (sdev)->ipc->ops) ? (sdev)->ipc->ops->ops_name : NULL)
/* * 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 */
/* * When true the DSP is not used. * It is set under the following condition: * User sets the SOF_DBG_DSPLESS_MODE flag in sof_debug module parameter * and * the platform advertises that it can support such mode * pdata->desc->dspless_mode_supported is true.
*/ bool dspless_mode_selected;
/* Main, Base firmware image */ struct sof_firmware basefw;
/* * 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; /* mutex to protect the dsp_power_state access */ struct mutex power_state_access;
/* Intended power target of system suspend */ enum sof_system_suspend_state system_suspend_target;
/* 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; bool dbg_dump_printed; bool ipc_dump_printed; bool d3_prevented; /* runtime pm use count incremented to prevent context lost */
/* IPC timeouts in ms */ int ipc_timeout; int boot_timeout;
/* firmwre tracing */ bool fw_trace_is_supported; /* set with Kconfig or module parameter */ void *fw_trace_data; /* private data used by firmware tracing implementation */
bool msi_enabled;
/* DSP core context */
u32 num_cores;
/* * ref count per core that will be modified during system suspend/resume and during pcm * hw_params/hw_free. This doesn't need to be protected with a mutex because pcm * hw_params/hw_free are already protected by the PCM mutex in the ALSA framework in * sound/core/ when streams are active and during system suspend/resume, streams are * already suspended.
*/ int dsp_core_ref_count[SOF_MAX_DSP_NUM_CORES];
/* * Used to keep track of registered IPC client devices so that they can * be removed when the parent SOF module is removed.
*/ struct list_head ipc_client_list;
/* mutex to protect client list */ struct mutex ipc_client_mutex;
/* * Used for tracking the IPC client's RX registration for DSP initiated * message handling.
*/ struct list_head ipc_rx_handler_list;
/* * Used for tracking the IPC client's registration for DSP state change * notification
*/ struct list_head fw_state_handler_list;
/* to protect the ipc_rx_handler_list and dsp_state_handler_list list */ struct mutex client_event_handler_mutex;
/* quirks to override topology values */ bool mclk_id_override;
u16 mclk_id_quirk; /* same size as in IPC3 definitions */
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_device_shutdown(struct device *dev); bool snd_sof_device_probe_completed(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);
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