new file mode 100644
@@ -0,0 +1,94 @@
+/* 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 __INCLUDE_SOUND_SOF_H
+#define __INCLUDE_SOUND_SOF_H
+
+#include <linux/pci.h>
+#include <sound/soc-acpi.h>
+
+struct snd_sof_dsp_ops;
+
+/*
+ * SOF Platform data.
+ */
+struct snd_sof_pdata {
+ const struct firmware *fw;
+ const char *drv_name;
+ const char *name;
+ const char *platform;
+
+ struct device *dev;
+
+ /*
+ * notification callback used if the hardware initialization
+ * can take time or is handled in a workqueue. This callback
+ * can be used by the caller to e.g. enable runtime_pm
+ * or limit functionality until all low-level inits are
+ * complete.
+ */
+ void (*sof_probe_complete)(struct device *dev);
+
+ /* descriptor */
+ const struct sof_dev_desc *desc;
+
+ /* firmware and topology filenames */
+ const char *fw_filename_prefix;
+ const char *fw_filename;
+ const char *tplg_filename_prefix;
+ const char *tplg_filename;
+
+ /* machine */
+ struct platform_device *pdev_mach;
+ const struct snd_soc_acpi_mach *machine;
+
+ void *hw_pdata;
+};
+
+/*
+ * Descriptor used for setting up SOF platform data. This is used when
+ * ACPI/PCI data is missing or mapped differently.
+ */
+struct sof_dev_desc {
+ /* list of machines using this configuration */
+ struct snd_soc_acpi_mach *machines;
+
+ /* Platform resource indexes in BAR / ACPI resources. */
+ /* Must set to -1 if not used - add new items to end */
+ int resindex_lpe_base;
+ int resindex_pcicfg_base;
+ int resindex_imr_base;
+ int irqindex_host_ipc;
+ int resindex_dma_base;
+
+ /* DMA only valid when resindex_dma_base != -1*/
+ int dma_engine;
+ int dma_size;
+
+ /* IPC timeouts in ms */
+ int ipc_timeout;
+ int boot_timeout;
+
+ /* chip information for dsp */
+ const void *chip_info;
+
+ /* defaults for no codec mode */
+ const char *nocodec_fw_filename;
+ const char *nocodec_tplg_filename;
+
+ /* defaults paths for firmware and topology files */
+ const char *default_fw_path;
+ const char *default_tplg_path;
+
+ const struct snd_sof_dsp_ops *ops;
+ const struct sof_arch_ops *arch_ops;
+};
+
+#endif
new file mode 100644
@@ -0,0 +1,489 @@
+// 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>
+//
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <asm/unaligned.h>
+#include <sound/soc.h>
+#include <sound/sof.h>
+#include "sof-priv.h"
+#include "ops.h"
+
+/* SOF defaults if not provided by the platform in ms */
+#define TIMEOUT_DEFAULT_IPC_MS 5
+#define TIMEOUT_DEFAULT_BOOT_MS 100
+
+/*
+ * Generic object lookup APIs.
+ */
+
+struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_sof_dev *sdev,
+ char *name)
+{
+ struct snd_sof_pcm *spcm = NULL;
+
+ list_for_each_entry(spcm, &sdev->pcm_list, list) {
+ if (strcmp(spcm->pcm.dai_name, name) == 0)
+ return spcm;
+
+ if (strcmp(spcm->pcm.caps[0].name, name) == 0)
+ return spcm;
+
+ if (strcmp(spcm->pcm.caps[1].name, name) == 0)
+ return spcm;
+ }
+
+ return NULL;
+}
+
+struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_sof_dev *sdev,
+ unsigned int comp_id,
+ int *direction)
+{
+ struct snd_sof_pcm *spcm = NULL;
+
+ list_for_each_entry(spcm, &sdev->pcm_list, list) {
+ if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].comp_id == comp_id) {
+ *direction = SNDRV_PCM_STREAM_PLAYBACK;
+ return spcm;
+ }
+ if (spcm->stream[SNDRV_PCM_STREAM_CAPTURE].comp_id == comp_id) {
+ *direction = SNDRV_PCM_STREAM_CAPTURE;
+ return spcm;
+ }
+ }
+
+ return NULL;
+}
+
+struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_sof_dev *sdev,
+ unsigned int pcm_id)
+{
+ struct snd_sof_pcm *spcm = NULL;
+
+ list_for_each_entry(spcm, &sdev->pcm_list, list) {
+ if (le32_to_cpu(spcm->pcm.pcm_id) == pcm_id)
+ return spcm;
+ }
+
+ return NULL;
+}
+
+struct snd_sof_widget *snd_sof_find_swidget(struct snd_sof_dev *sdev,
+ char *name)
+{
+ struct snd_sof_widget *swidget = NULL;
+
+ list_for_each_entry(swidget, &sdev->widget_list, list) {
+ if (strcmp(name, swidget->widget->name) == 0)
+ return swidget;
+ }
+
+ return NULL;
+}
+
+/* find widget by stream name and direction */
+struct snd_sof_widget *snd_sof_find_swidget_sname(struct snd_sof_dev *sdev,
+ char *pcm_name, int dir)
+{
+ struct snd_sof_widget *swidget = NULL;
+ enum snd_soc_dapm_type type;
+
+ if (dir == SNDRV_PCM_STREAM_PLAYBACK)
+ type = snd_soc_dapm_aif_in;
+ else
+ type = snd_soc_dapm_aif_out;
+
+ list_for_each_entry(swidget, &sdev->widget_list, list) {
+ if (!strcmp(pcm_name, swidget->widget->sname) && swidget->id == type)
+ return swidget;
+ }
+
+ return NULL;
+}
+
+struct snd_sof_dai *snd_sof_find_dai(struct snd_sof_dev *sdev,
+ char *name)
+{
+ struct snd_sof_dai *dai = NULL;
+
+ list_for_each_entry(dai, &sdev->dai_list, list) {
+ if (dai->name && (strcmp(name, dai->name) == 0))
+ return dai;
+ }
+
+ return NULL;
+}
+
+/*
+ * FW Panic/fault handling.
+ */
+
+struct sof_panic_msg {
+ u32 id;
+ const char *msg;
+};
+
+/* standard FW panic types */
+static const struct sof_panic_msg panic_msg[] = {
+ {SOF_IPC_PANIC_MEM, "out of memory"},
+ {SOF_IPC_PANIC_WORK, "work subsystem init failed"},
+ {SOF_IPC_PANIC_IPC, "IPC subsystem init failed"},
+ {SOF_IPC_PANIC_ARCH, "arch init failed"},
+ {SOF_IPC_PANIC_PLATFORM, "platform init failed"},
+ {SOF_IPC_PANIC_TASK, "scheduler init failed"},
+ {SOF_IPC_PANIC_EXCEPTION, "runtime exception"},
+ {SOF_IPC_PANIC_DEADLOCK, "deadlock"},
+ {SOF_IPC_PANIC_STACK, "stack overflow"},
+ {SOF_IPC_PANIC_IDLE, "can't enter idle"},
+ {SOF_IPC_PANIC_WFI, "invalid wait state"},
+};
+
+int 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)
+{
+ u32 code;
+ int i;
+
+ /* is firmware dead ? */
+ if ((panic_code & SOF_IPC_PANIC_MAGIC_MASK) != SOF_IPC_PANIC_MAGIC) {
+ dev_err(sdev->dev, "error: unexpected fault 0x%8.8x trace 0x%8.8x\n",
+ panic_code, tracep_code);
+ return 0; /* no fault ? */
+ }
+
+ code = panic_code & (SOF_IPC_PANIC_MAGIC_MASK | SOF_IPC_PANIC_CODE_MASK);
+
+ for (i = 0; i < ARRAY_SIZE(panic_msg); i++) {
+ if (panic_msg[i].id == code) {
+ dev_err(sdev->dev, "error: %s\n", panic_msg[i].msg);
+ dev_err(sdev->dev, "error: trace point %8.8x\n",
+ tracep_code);
+ goto out;
+ }
+ }
+
+ /* unknown error */
+ dev_err(sdev->dev, "error: unknown reason %8.8x\n", panic_code);
+ dev_err(sdev->dev, "error: trace point %8.8x\n", tracep_code);
+
+out:
+ dev_err(sdev->dev, "error: panic happen at %s:%d\n",
+ panic_info->filename, panic_info->linenum);
+ sof_oops(sdev, oops);
+ sof_stack(sdev, oops, stack, stack_words);
+ return -EFAULT;
+}
+EXPORT_SYMBOL(snd_sof_get_status);
+
+/*
+ * Generic buffer page table creation.
+ * Take the each physical page address and drop the least significant unused
+ * bites from each (based on PAGE_SIZE). Then pack valid page address bits
+ * into compressed page table.
+ */
+
+int snd_sof_create_page_table(struct snd_sof_dev *sdev,
+ struct snd_dma_buffer *dmab,
+ unsigned char *page_table, size_t size)
+{
+ int i, pages;
+
+ pages = snd_sgbuf_aligned_pages(size);
+
+ dev_dbg(sdev->dev, "generating page table for %p size 0x%zx pages %d\n",
+ dmab->area, size, pages);
+
+ for (i = 0; i < pages; i++) {
+ /*
+ * The number of valid address bits for each page is 20.
+ * idx determines the byte position within page_table
+ * where the current page's address is stored
+ * in the compressed page_table.
+ * This can be calculated by multiplying the page number by 2.5.
+ */
+ u32 idx = (5 * i) >> 1;
+ u32 pfn = snd_sgbuf_get_addr(dmab, i * PAGE_SIZE) >> PAGE_SHIFT;
+ u8 *pg_table;
+
+ dev_vdbg(sdev->dev, "pfn i %i idx %d pfn %x\n", i, idx, pfn);
+
+ pg_table = (u8 *)(page_table + idx);
+
+ /*
+ * pagetable compression:
+ * byte 0 byte 1 byte 2 byte 3 byte 4 byte 5
+ * ___________pfn 0__________ __________pfn 1___________ _pfn 2...
+ * .... .... .... .... .... .... .... .... .... .... ....
+ * It is created by:
+ * 1. set current location to 0, PFN index i to 0
+ * 2. put pfn[i] at current location in Little Endian byte order
+ * 3. calculate an intermediate value as
+ * x = (pfn[i+1] << 4) | (pfn[i] & 0xf)
+ * 4. put x at offset (current location + 2) in LE byte order
+ * 5. increment current location by 5 bytes, increment i by 2
+ * 6. continue to (1)
+ */
+ if (i & 1)
+ put_unaligned_le32((pg_table[0] & 0xf) | pfn << 4,
+ pg_table);
+ else
+ put_unaligned_le32(pfn, pg_table);
+ }
+
+ return pages;
+}
+
+/*
+ * SOF Driver enumeration.
+ */
+static int sof_machine_check(struct snd_sof_dev *sdev)
+{
+ struct snd_sof_pdata *plat_data = sdev->pdata;
+ struct snd_soc_acpi_mach *machine;
+ int ret;
+
+ if (plat_data->machine)
+ return 0;
+
+ if (!IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC)) {
+ dev_err(sdev->dev, "error: no matching ASoC machine driver found - aborting probe\n");
+ return -ENODEV;
+ }
+
+ /* fallback to nocodec mode */
+ dev_warn(sdev->dev, "No ASoC machine driver found - using nocodec\n");
+ machine = devm_kzalloc(sdev->dev, sizeof(*machine), GFP_KERNEL);
+ if (!machine)
+ return -ENOMEM;
+
+ ret = sof_nocodec_setup(sdev->dev, plat_data, machine,
+ plat_data->desc, plat_data->desc->ops);
+ if (ret < 0)
+ return ret;
+
+ plat_data->machine = machine;
+
+ return 0;
+}
+
+static int sof_probe_continue(struct snd_sof_dev *sdev)
+{
+ struct snd_sof_pdata *plat_data = sdev->pdata;
+ const char *drv_name;
+ const void *mach;
+ int size;
+ int ret;
+
+ /* probe the DSP hardware */
+ ret = snd_sof_probe(sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to probe DSP %d\n", ret);
+ return ret;
+ }
+
+ /* check machine info */
+ ret = sof_machine_check(sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to get machine info %d\n",
+ ret);
+ goto dbg_err;
+ }
+
+ /* set up platform component driver */
+ snd_sof_new_platform_drv(sdev);
+
+ /* register any debug/trace capabilities */
+ ret = snd_sof_dbg_init(sdev);
+ if (ret < 0) {
+ /*
+ * debugfs issues are suppressed in snd_sof_dbg_init() since
+ * we cannot rely on debugfs
+ * here we trap errors due to memory allocation only.
+ */
+ dev_err(sdev->dev, "error: failed to init DSP trace/debug %d\n",
+ ret);
+ goto dbg_err;
+ }
+
+ /* init the IPC */
+ sdev->ipc = snd_sof_ipc_init(sdev);
+ if (!sdev->ipc) {
+ dev_err(sdev->dev, "error: failed to init DSP IPC %d\n", ret);
+ goto ipc_err;
+ }
+
+ /* load the firmware */
+ ret = snd_sof_load_firmware(sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to load DSP firmware %d\n",
+ ret);
+ goto fw_load_err;
+ }
+
+ /* boot the firmware */
+ ret = snd_sof_run_firmware(sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: failed to boot DSP firmware %d\n",
+ ret);
+ goto fw_run_err;
+ }
+
+ /* init DMA trace */
+ ret = snd_sof_init_trace(sdev);
+ if (ret < 0) {
+ /* non fatal */
+ dev_warn(sdev->dev,
+ "warning: failed to initialize trace %d\n", ret);
+ }
+
+ /* hereafter all FW boot flows are for PM reasons */
+ sdev->first_boot = false;
+
+ /* now register audio DSP platform driver and dai */
+ ret = snd_soc_register_component(sdev->dev, &sdev->plat_drv,
+ sof_ops(sdev)->drv,
+ sof_ops(sdev)->num_drv);
+ if (ret < 0) {
+ dev_err(sdev->dev,
+ "error: failed to register DSP DAI driver %d\n", ret);
+ goto fw_run_err;
+ }
+
+ drv_name = plat_data->machine->drv_name;
+ mach = (const void *)plat_data->machine;
+ size = sizeof(*plat_data->machine);
+
+ /* register machine driver, pass machine info as pdata */
+ plat_data->pdev_mach =
+ platform_device_register_data(sdev->dev, drv_name,
+ PLATFORM_DEVID_NONE, mach, size);
+
+ if (IS_ERR(plat_data->pdev_mach)) {
+ ret = PTR_ERR(plat_data->pdev_mach);
+ goto comp_err;
+ }
+
+ dev_dbg(sdev->dev, "created machine %s\n",
+ dev_name(&plat_data->pdev_mach->dev));
+
+ if (plat_data->sof_probe_complete)
+ plat_data->sof_probe_complete(sdev->dev);
+
+ return 0;
+
+comp_err:
+ snd_soc_unregister_component(sdev->dev);
+fw_run_err:
+ snd_sof_fw_unload(sdev);
+fw_load_err:
+ snd_sof_ipc_free(sdev);
+ipc_err:
+ snd_sof_free_debug(sdev);
+dbg_err:
+ snd_sof_remove(sdev);
+
+ return ret;
+}
+
+static void sof_probe_work(struct work_struct *work)
+{
+ struct snd_sof_dev *sdev =
+ container_of(work, struct snd_sof_dev, probe_work);
+ int ret;
+
+ ret = sof_probe_continue(sdev);
+ if (ret < 0) {
+ /* errors cannot be propagated, log */
+ dev_err(sdev->dev, "error: %s failed err: %d\n", __func__, ret);
+ }
+}
+
+int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data)
+{
+ struct snd_sof_dev *sdev;
+
+ sdev = devm_kzalloc(dev, sizeof(*sdev), GFP_KERNEL);
+ if (!sdev)
+ return -ENOMEM;
+
+ /* initialize sof device */
+ sdev->dev = dev;
+
+ sdev->pdata = plat_data;
+ sdev->first_boot = true;
+ dev_set_drvdata(dev, sdev);
+
+ INIT_LIST_HEAD(&sdev->pcm_list);
+ INIT_LIST_HEAD(&sdev->kcontrol_list);
+ INIT_LIST_HEAD(&sdev->widget_list);
+ INIT_LIST_HEAD(&sdev->dai_list);
+ INIT_LIST_HEAD(&sdev->route_list);
+ spin_lock_init(&sdev->ipc_lock);
+ spin_lock_init(&sdev->hw_lock);
+
+ if (IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE))
+ INIT_WORK(&sdev->probe_work, sof_probe_work);
+
+ /* set default timeouts if none provided */
+ if (plat_data->desc->ipc_timeout == 0)
+ sdev->ipc_timeout = TIMEOUT_DEFAULT_IPC_MS;
+ else
+ sdev->ipc_timeout = plat_data->desc->ipc_timeout;
+ if (plat_data->desc->boot_timeout == 0)
+ sdev->boot_timeout = TIMEOUT_DEFAULT_BOOT_MS;
+ else
+ sdev->boot_timeout = plat_data->desc->boot_timeout;
+
+ if (IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)) {
+ schedule_work(&sdev->probe_work);
+ return 0;
+ }
+
+ return sof_probe_continue(sdev);
+}
+EXPORT_SYMBOL(snd_sof_device_probe);
+
+int snd_sof_device_remove(struct device *dev)
+{
+ struct snd_sof_dev *sdev = dev_get_drvdata(dev);
+ struct snd_sof_pdata *pdata = sdev->pdata;
+
+ if (IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE))
+ cancel_work_sync(&sdev->probe_work);
+
+ snd_soc_unregister_component(dev);
+ snd_sof_fw_unload(sdev);
+ snd_sof_ipc_free(sdev);
+ snd_sof_free_debug(sdev);
+ snd_sof_free_trace(sdev);
+ snd_sof_remove(sdev);
+ /*
+ * platform_device_unregister() frees the card and its resources.
+ * So it should be called after unregistering the comp driver
+ * so that the card is valid while unregistering comp driver.
+ */
+ if (!IS_ERR_OR_NULL(pdata->pdev_mach))
+ platform_device_unregister(pdata->pdev_mach);
+
+ /* release firmware */
+ release_firmware(pdata->fw);
+ pdata->fw = NULL;
+
+ return 0;
+}
+EXPORT_SYMBOL(snd_sof_device_remove);
+
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_DESCRIPTION("Sound Open Firmware (SOF) Core");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS("platform:sof-audio");
new file mode 100644
@@ -0,0 +1,616 @@
+/* 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 */
+ void (*write)(struct snd_sof_dev *sof_dev, void __iomem *addr,
+ u32 value); /* mandatory */
+ u32 (*read)(struct snd_sof_dev *sof_dev,
+ void __iomem *addr); /* mandatory */
+ void (*write64)(struct snd_sof_dev *sof_dev, void __iomem *addr,
+ u64 value); /* mandatory */
+ u64 (*read64)(struct snd_sof_dev *sof_dev,
+ void __iomem *addr); /* mandatory */
+
+ /* 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); /* mandatory */
+ irqreturn_t (*irq_thread)(int irq, void *context); /* mandatory */
+
+ /* mailbox */
+ void (*mailbox_read)(struct snd_sof_dev *sof_dev, u32 offset,
+ void *addr, size_t bytes); /* mandatory */
+ void (*mailbox_write)(struct snd_sof_dev *sof_dev, u32 offset,
+ void *addr, size_t bytes); /* mandatory */
+
+ /* ipc */
+ int (*send_msg)(struct snd_sof_dev *sof_dev,
+ struct snd_sof_ipc_msg *msg); /* mandatory */
+ int (*get_reply)(struct snd_sof_dev *sof_dev,
+ struct snd_sof_ipc_msg *msg); /* mandatory */
+ int (*cmd_done)(struct snd_sof_dev *sof_dev, int dir); /* 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 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 */
+
+ /* 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 */
+
+ /* 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 */
+
+ /* 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;
+
+ 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;
+};
+
+/* 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];
+ u32 posn_offset[2];
+ struct list_head list; /* list in sdev pcm list */
+ struct snd_pcm_hw_params params[2];
+ int restore_stream[2]; /* restore hw_params for paused stream */
+};
+
+/* 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 */
+ u64 irq_status;
+ 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,
+ char *name);
+struct snd_sof_widget *snd_sof_find_swidget_sname(struct snd_sof_dev *sdev,
+ char *pcm_name, int dir);
+struct snd_sof_dai *snd_sof_find_dai(struct snd_sof_dev *sdev,
+ 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,
+ 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);
+
+/*
+ * 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_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);
+int snd_sof_ipc_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);
+
+/*
+ * 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);
+int 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);
+
+#endif