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885 lines
23 KiB
C
885 lines
23 KiB
C
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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//
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// This file is provided under a dual BSD/GPLv2 license. When using or
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// redistributing this file, you may do so under either license.
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//
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// Copyright(c) 2018 Intel Corporation. All rights reserved.
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//
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// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
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//
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// Generic firmware loader.
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//
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#include <linux/firmware.h>
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#include <sound/sof.h>
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#include <sound/sof/ext_manifest.h>
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#include "ops.h"
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static int get_ext_windows(struct snd_sof_dev *sdev,
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const struct sof_ipc_ext_data_hdr *ext_hdr)
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{
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const struct sof_ipc_window *w =
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container_of(ext_hdr, struct sof_ipc_window, ext_hdr);
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if (w->num_windows == 0 || w->num_windows > SOF_IPC_MAX_ELEMS)
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return -EINVAL;
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if (sdev->info_window) {
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if (memcmp(sdev->info_window, w, ext_hdr->hdr.size)) {
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dev_err(sdev->dev, "error: mismatch between window descriptor from extended manifest and mailbox");
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return -EINVAL;
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}
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return 0;
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}
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/* keep a local copy of the data */
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sdev->info_window = devm_kmemdup(sdev->dev, w, ext_hdr->hdr.size,
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GFP_KERNEL);
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if (!sdev->info_window)
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return -ENOMEM;
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return 0;
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}
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static int get_cc_info(struct snd_sof_dev *sdev,
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const struct sof_ipc_ext_data_hdr *ext_hdr)
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{
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int ret;
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const struct sof_ipc_cc_version *cc =
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container_of(ext_hdr, struct sof_ipc_cc_version, ext_hdr);
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if (sdev->cc_version) {
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if (memcmp(sdev->cc_version, cc, cc->ext_hdr.hdr.size)) {
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dev_err(sdev->dev, "error: receive diverged cc_version descriptions");
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return -EINVAL;
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}
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return 0;
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}
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dev_dbg(sdev->dev, "Firmware info: used compiler %s %d:%d:%d%s used optimization flags %s\n",
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cc->name, cc->major, cc->minor, cc->micro, cc->desc,
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cc->optim);
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/* create read-only cc_version debugfs to store compiler version info */
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/* use local copy of the cc_version to prevent data corruption */
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if (sdev->first_boot) {
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sdev->cc_version = devm_kmalloc(sdev->dev, cc->ext_hdr.hdr.size,
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GFP_KERNEL);
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if (!sdev->cc_version)
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return -ENOMEM;
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memcpy(sdev->cc_version, cc, cc->ext_hdr.hdr.size);
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ret = snd_sof_debugfs_buf_item(sdev, sdev->cc_version,
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cc->ext_hdr.hdr.size,
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"cc_version", 0444);
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/* errors are only due to memory allocation, not debugfs */
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if (ret < 0) {
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dev_err(sdev->dev, "error: snd_sof_debugfs_buf_item failed\n");
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return ret;
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}
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}
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return 0;
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}
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/* parse the extended FW boot data structures from FW boot message */
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int snd_sof_fw_parse_ext_data(struct snd_sof_dev *sdev, u32 bar, u32 offset)
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{
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struct sof_ipc_ext_data_hdr *ext_hdr;
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void *ext_data;
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int ret = 0;
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ext_data = kzalloc(PAGE_SIZE, GFP_KERNEL);
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if (!ext_data)
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return -ENOMEM;
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/* get first header */
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snd_sof_dsp_block_read(sdev, bar, offset, ext_data,
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sizeof(*ext_hdr));
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ext_hdr = ext_data;
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while (ext_hdr->hdr.cmd == SOF_IPC_FW_READY) {
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/* read in ext structure */
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snd_sof_dsp_block_read(sdev, bar, offset + sizeof(*ext_hdr),
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(void *)((u8 *)ext_data + sizeof(*ext_hdr)),
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ext_hdr->hdr.size - sizeof(*ext_hdr));
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dev_dbg(sdev->dev, "found ext header type %d size 0x%x\n",
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ext_hdr->type, ext_hdr->hdr.size);
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/* process structure data */
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switch (ext_hdr->type) {
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case SOF_IPC_EXT_WINDOW:
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ret = get_ext_windows(sdev, ext_hdr);
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break;
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case SOF_IPC_EXT_CC_INFO:
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ret = get_cc_info(sdev, ext_hdr);
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break;
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case SOF_IPC_EXT_UNUSED:
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case SOF_IPC_EXT_PROBE_INFO:
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case SOF_IPC_EXT_USER_ABI_INFO:
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/* They are supported but we don't do anything here */
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break;
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default:
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dev_info(sdev->dev, "unknown ext header type %d size 0x%x\n",
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ext_hdr->type, ext_hdr->hdr.size);
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ret = 0;
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break;
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}
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if (ret < 0) {
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dev_err(sdev->dev, "error: failed to parse ext data type %d\n",
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ext_hdr->type);
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break;
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}
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/* move to next header */
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offset += ext_hdr->hdr.size;
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snd_sof_dsp_block_read(sdev, bar, offset, ext_data,
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sizeof(*ext_hdr));
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ext_hdr = ext_data;
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}
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kfree(ext_data);
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return ret;
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}
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EXPORT_SYMBOL(snd_sof_fw_parse_ext_data);
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static int ext_man_get_fw_version(struct snd_sof_dev *sdev,
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const struct sof_ext_man_elem_header *hdr)
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{
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const struct sof_ext_man_fw_version *v =
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container_of(hdr, struct sof_ext_man_fw_version, hdr);
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memcpy(&sdev->fw_ready.version, &v->version, sizeof(v->version));
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sdev->fw_ready.flags = v->flags;
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/* log ABI versions and check FW compatibility */
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return snd_sof_ipc_valid(sdev);
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}
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static int ext_man_get_windows(struct snd_sof_dev *sdev,
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const struct sof_ext_man_elem_header *hdr)
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{
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const struct sof_ext_man_window *w;
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w = container_of(hdr, struct sof_ext_man_window, hdr);
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return get_ext_windows(sdev, &w->ipc_window.ext_hdr);
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}
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static int ext_man_get_cc_info(struct snd_sof_dev *sdev,
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const struct sof_ext_man_elem_header *hdr)
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{
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const struct sof_ext_man_cc_version *cc;
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cc = container_of(hdr, struct sof_ext_man_cc_version, hdr);
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return get_cc_info(sdev, &cc->cc_version.ext_hdr);
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}
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static int ext_man_get_dbg_abi_info(struct snd_sof_dev *sdev,
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const struct sof_ext_man_elem_header *hdr)
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{
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const struct ext_man_dbg_abi *dbg_abi =
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container_of(hdr, struct ext_man_dbg_abi, hdr);
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if (sdev->first_boot)
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dev_dbg(sdev->dev,
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"Firmware: DBG_ABI %d:%d:%d\n",
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SOF_ABI_VERSION_MAJOR(dbg_abi->dbg_abi.abi_dbg_version),
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SOF_ABI_VERSION_MINOR(dbg_abi->dbg_abi.abi_dbg_version),
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SOF_ABI_VERSION_PATCH(dbg_abi->dbg_abi.abi_dbg_version));
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return 0;
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}
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static int ext_man_get_config_data(struct snd_sof_dev *sdev,
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const struct sof_ext_man_elem_header *hdr)
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{
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const struct sof_ext_man_config_data *config =
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container_of(hdr, struct sof_ext_man_config_data, hdr);
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const struct sof_config_elem *elem;
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int elems_counter;
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int elems_size;
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int ret = 0;
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int i;
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/* calculate elements counter */
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elems_size = config->hdr.size - sizeof(struct sof_ext_man_elem_header);
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elems_counter = elems_size / sizeof(struct sof_config_elem);
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dev_dbg(sdev->dev, "%s can hold up to %d config elements\n",
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__func__, elems_counter);
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for (i = 0; i < elems_counter; ++i) {
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elem = &config->elems[i];
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dev_dbg(sdev->dev, "%s get index %d token %d val %d\n",
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__func__, i, elem->token, elem->value);
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switch (elem->token) {
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case SOF_EXT_MAN_CONFIG_EMPTY:
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/* unused memory space is zero filled - mapped to EMPTY elements */
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break;
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case SOF_EXT_MAN_CONFIG_IPC_MSG_SIZE:
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/* TODO: use ipc msg size from config data */
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break;
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case SOF_EXT_MAN_CONFIG_MEMORY_USAGE_SCAN:
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if (sdev->first_boot && elem->value)
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ret = snd_sof_dbg_memory_info_init(sdev);
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break;
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default:
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dev_info(sdev->dev, "Unknown firmware configuration token %d value %d",
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elem->token, elem->value);
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break;
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}
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if (ret < 0) {
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dev_err(sdev->dev, "error: processing sof_ext_man_config_data failed for token %d value 0x%x, %d\n",
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elem->token, elem->value, ret);
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return ret;
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}
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}
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return 0;
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}
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static ssize_t snd_sof_ext_man_size(const struct firmware *fw)
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{
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const struct sof_ext_man_header *head;
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head = (struct sof_ext_man_header *)fw->data;
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/*
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* assert fw size is big enough to contain extended manifest header,
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* it prevents from reading unallocated memory from `head` in following
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* step.
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*/
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if (fw->size < sizeof(*head))
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return -EINVAL;
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/*
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* When fw points to extended manifest,
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* then first u32 must be equal SOF_EXT_MAN_MAGIC_NUMBER.
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*/
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if (head->magic == SOF_EXT_MAN_MAGIC_NUMBER)
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return head->full_size;
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/* otherwise given fw don't have an extended manifest */
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return 0;
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}
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/* parse extended FW manifest data structures */
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static int snd_sof_fw_ext_man_parse(struct snd_sof_dev *sdev,
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const struct firmware *fw)
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{
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const struct sof_ext_man_elem_header *elem_hdr;
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const struct sof_ext_man_header *head;
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ssize_t ext_man_size;
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ssize_t remaining;
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uintptr_t iptr;
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int ret = 0;
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head = (struct sof_ext_man_header *)fw->data;
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remaining = head->full_size - head->header_size;
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ext_man_size = snd_sof_ext_man_size(fw);
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/* Assert firmware starts with extended manifest */
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if (ext_man_size <= 0)
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return ext_man_size;
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/* incompatible version */
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if (SOF_EXT_MAN_VERSION_INCOMPATIBLE(SOF_EXT_MAN_VERSION,
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head->header_version)) {
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dev_err(sdev->dev, "error: extended manifest version 0x%X differ from used 0x%X\n",
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head->header_version, SOF_EXT_MAN_VERSION);
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return -EINVAL;
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}
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/* get first extended manifest element header */
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iptr = (uintptr_t)fw->data + head->header_size;
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while (remaining > sizeof(*elem_hdr)) {
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elem_hdr = (struct sof_ext_man_elem_header *)iptr;
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dev_dbg(sdev->dev, "found sof_ext_man header type %d size 0x%X\n",
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elem_hdr->type, elem_hdr->size);
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if (elem_hdr->size < sizeof(*elem_hdr) ||
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elem_hdr->size > remaining) {
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dev_err(sdev->dev, "error: invalid sof_ext_man header size, type %d size 0x%X\n",
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elem_hdr->type, elem_hdr->size);
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return -EINVAL;
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}
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/* process structure data */
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switch (elem_hdr->type) {
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case SOF_EXT_MAN_ELEM_FW_VERSION:
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ret = ext_man_get_fw_version(sdev, elem_hdr);
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break;
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case SOF_EXT_MAN_ELEM_WINDOW:
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ret = ext_man_get_windows(sdev, elem_hdr);
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break;
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case SOF_EXT_MAN_ELEM_CC_VERSION:
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ret = ext_man_get_cc_info(sdev, elem_hdr);
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break;
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case SOF_EXT_MAN_ELEM_DBG_ABI:
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ret = ext_man_get_dbg_abi_info(sdev, elem_hdr);
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break;
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case SOF_EXT_MAN_ELEM_CONFIG_DATA:
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ret = ext_man_get_config_data(sdev, elem_hdr);
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break;
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case SOF_EXT_MAN_ELEM_PLATFORM_CONFIG_DATA:
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ret = snd_sof_dsp_parse_platform_ext_manifest(sdev, elem_hdr);
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break;
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default:
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dev_info(sdev->dev, "unknown sof_ext_man header type %d size 0x%X\n",
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elem_hdr->type, elem_hdr->size);
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break;
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}
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if (ret < 0) {
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dev_err(sdev->dev, "error: failed to parse sof_ext_man header type %d size 0x%X\n",
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elem_hdr->type, elem_hdr->size);
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return ret;
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}
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remaining -= elem_hdr->size;
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iptr += elem_hdr->size;
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}
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if (remaining) {
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dev_err(sdev->dev, "error: sof_ext_man header is inconsistent\n");
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return -EINVAL;
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}
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return ext_man_size;
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}
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/*
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* IPC Firmware ready.
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*/
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static void sof_get_windows(struct snd_sof_dev *sdev)
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{
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struct sof_ipc_window_elem *elem;
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u32 outbox_offset = 0;
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u32 stream_offset = 0;
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u32 inbox_offset = 0;
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u32 outbox_size = 0;
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u32 stream_size = 0;
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u32 inbox_size = 0;
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u32 debug_size = 0;
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u32 debug_offset = 0;
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int window_offset;
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int bar;
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int i;
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if (!sdev->info_window) {
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dev_err(sdev->dev, "error: have no window info\n");
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return;
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}
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bar = snd_sof_dsp_get_bar_index(sdev, SOF_FW_BLK_TYPE_SRAM);
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if (bar < 0) {
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dev_err(sdev->dev, "error: have no bar mapping\n");
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return;
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}
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for (i = 0; i < sdev->info_window->num_windows; i++) {
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elem = &sdev->info_window->window[i];
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window_offset = snd_sof_dsp_get_window_offset(sdev, elem->id);
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if (window_offset < 0) {
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dev_warn(sdev->dev, "warn: no offset for window %d\n",
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elem->id);
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continue;
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}
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switch (elem->type) {
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case SOF_IPC_REGION_UPBOX:
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inbox_offset = window_offset + elem->offset;
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inbox_size = elem->size;
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snd_sof_debugfs_io_item(sdev,
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sdev->bar[bar] +
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inbox_offset,
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elem->size, "inbox",
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SOF_DEBUGFS_ACCESS_D0_ONLY);
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break;
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case SOF_IPC_REGION_DOWNBOX:
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outbox_offset = window_offset + elem->offset;
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outbox_size = elem->size;
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snd_sof_debugfs_io_item(sdev,
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sdev->bar[bar] +
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outbox_offset,
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elem->size, "outbox",
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SOF_DEBUGFS_ACCESS_D0_ONLY);
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break;
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case SOF_IPC_REGION_TRACE:
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snd_sof_debugfs_io_item(sdev,
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sdev->bar[bar] +
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window_offset +
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elem->offset,
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elem->size, "etrace",
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SOF_DEBUGFS_ACCESS_D0_ONLY);
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break;
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case SOF_IPC_REGION_DEBUG:
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debug_offset = window_offset + elem->offset;
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debug_size = elem->size;
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snd_sof_debugfs_io_item(sdev,
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sdev->bar[bar] +
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window_offset +
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elem->offset,
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elem->size, "debug",
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SOF_DEBUGFS_ACCESS_D0_ONLY);
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break;
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case SOF_IPC_REGION_STREAM:
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stream_offset = window_offset + elem->offset;
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stream_size = elem->size;
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snd_sof_debugfs_io_item(sdev,
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sdev->bar[bar] +
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stream_offset,
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elem->size, "stream",
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SOF_DEBUGFS_ACCESS_D0_ONLY);
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break;
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case SOF_IPC_REGION_REGS:
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snd_sof_debugfs_io_item(sdev,
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sdev->bar[bar] +
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window_offset +
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elem->offset,
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elem->size, "regs",
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SOF_DEBUGFS_ACCESS_D0_ONLY);
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break;
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case SOF_IPC_REGION_EXCEPTION:
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sdev->dsp_oops_offset = window_offset + elem->offset;
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snd_sof_debugfs_io_item(sdev,
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sdev->bar[bar] +
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window_offset +
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elem->offset,
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elem->size, "exception",
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SOF_DEBUGFS_ACCESS_D0_ONLY);
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break;
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default:
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dev_err(sdev->dev, "error: get illegal window info\n");
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return;
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}
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}
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if (outbox_size == 0 || inbox_size == 0) {
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dev_err(sdev->dev, "error: get illegal mailbox window\n");
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return;
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}
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snd_sof_dsp_mailbox_init(sdev, inbox_offset, inbox_size,
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outbox_offset, outbox_size);
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sdev->stream_box.offset = stream_offset;
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sdev->stream_box.size = stream_size;
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sdev->debug_box.offset = debug_offset;
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sdev->debug_box.size = debug_size;
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dev_dbg(sdev->dev, " mailbox upstream 0x%x - size 0x%x\n",
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|
inbox_offset, inbox_size);
|
|
dev_dbg(sdev->dev, " mailbox downstream 0x%x - size 0x%x\n",
|
|
outbox_offset, outbox_size);
|
|
dev_dbg(sdev->dev, " stream region 0x%x - size 0x%x\n",
|
|
stream_offset, stream_size);
|
|
dev_dbg(sdev->dev, " debug region 0x%x - size 0x%x\n",
|
|
debug_offset, debug_size);
|
|
}
|
|
|
|
/* check for ABI compatibility and create memory windows on first boot */
|
|
int sof_fw_ready(struct snd_sof_dev *sdev, u32 msg_id)
|
|
{
|
|
struct sof_ipc_fw_ready *fw_ready = &sdev->fw_ready;
|
|
int offset;
|
|
int bar;
|
|
int ret;
|
|
|
|
/* mailbox must be on 4k boundary */
|
|
offset = snd_sof_dsp_get_mailbox_offset(sdev);
|
|
if (offset < 0) {
|
|
dev_err(sdev->dev, "error: have no mailbox offset\n");
|
|
return offset;
|
|
}
|
|
|
|
bar = snd_sof_dsp_get_bar_index(sdev, SOF_FW_BLK_TYPE_SRAM);
|
|
if (bar < 0) {
|
|
dev_err(sdev->dev, "error: have no bar mapping\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_dbg(sdev->dev, "ipc: DSP is ready 0x%8.8x offset 0x%x\n",
|
|
msg_id, offset);
|
|
|
|
/* no need to re-check version/ABI for subsequent boots */
|
|
if (!sdev->first_boot)
|
|
return 0;
|
|
|
|
/* copy data from the DSP FW ready offset */
|
|
sof_block_read(sdev, bar, offset, fw_ready, sizeof(*fw_ready));
|
|
|
|
/* make sure ABI version is compatible */
|
|
ret = snd_sof_ipc_valid(sdev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* now check for extended data */
|
|
snd_sof_fw_parse_ext_data(sdev, bar, offset +
|
|
sizeof(struct sof_ipc_fw_ready));
|
|
|
|
sof_get_windows(sdev);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(sof_fw_ready);
|
|
|
|
/* generic module parser for mmaped DSPs */
|
|
int snd_sof_parse_module_memcpy(struct snd_sof_dev *sdev,
|
|
struct snd_sof_mod_hdr *module)
|
|
{
|
|
struct snd_sof_blk_hdr *block;
|
|
int count, bar;
|
|
u32 offset;
|
|
size_t remaining;
|
|
|
|
dev_dbg(sdev->dev, "new module size 0x%x blocks 0x%x type 0x%x\n",
|
|
module->size, module->num_blocks, module->type);
|
|
|
|
block = (struct snd_sof_blk_hdr *)((u8 *)module + sizeof(*module));
|
|
|
|
/* module->size doesn't include header size */
|
|
remaining = module->size;
|
|
for (count = 0; count < module->num_blocks; count++) {
|
|
/* check for wrap */
|
|
if (remaining < sizeof(*block)) {
|
|
dev_err(sdev->dev, "error: not enough data remaining\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* minus header size of block */
|
|
remaining -= sizeof(*block);
|
|
|
|
if (block->size == 0) {
|
|
dev_warn(sdev->dev,
|
|
"warning: block %d size zero\n", count);
|
|
dev_warn(sdev->dev, " type 0x%x offset 0x%x\n",
|
|
block->type, block->offset);
|
|
continue;
|
|
}
|
|
|
|
switch (block->type) {
|
|
case SOF_FW_BLK_TYPE_RSRVD0:
|
|
case SOF_FW_BLK_TYPE_ROM...SOF_FW_BLK_TYPE_RSRVD14:
|
|
continue; /* not handled atm */
|
|
case SOF_FW_BLK_TYPE_IRAM:
|
|
case SOF_FW_BLK_TYPE_DRAM:
|
|
case SOF_FW_BLK_TYPE_SRAM:
|
|
offset = block->offset;
|
|
bar = snd_sof_dsp_get_bar_index(sdev, block->type);
|
|
if (bar < 0) {
|
|
dev_err(sdev->dev,
|
|
"error: no BAR mapping for block type 0x%x\n",
|
|
block->type);
|
|
return bar;
|
|
}
|
|
break;
|
|
default:
|
|
dev_err(sdev->dev, "error: bad type 0x%x for block 0x%x\n",
|
|
block->type, count);
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_dbg(sdev->dev,
|
|
"block %d type 0x%x size 0x%x ==> offset 0x%x\n",
|
|
count, block->type, block->size, offset);
|
|
|
|
/* checking block->size to avoid unaligned access */
|
|
if (block->size % sizeof(u32)) {
|
|
dev_err(sdev->dev, "error: invalid block size 0x%x\n",
|
|
block->size);
|
|
return -EINVAL;
|
|
}
|
|
snd_sof_dsp_block_write(sdev, bar, offset,
|
|
block + 1, block->size);
|
|
|
|
if (remaining < block->size) {
|
|
dev_err(sdev->dev, "error: not enough data remaining\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* minus body size of block */
|
|
remaining -= block->size;
|
|
/* next block */
|
|
block = (struct snd_sof_blk_hdr *)((u8 *)block + sizeof(*block)
|
|
+ block->size);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(snd_sof_parse_module_memcpy);
|
|
|
|
static int check_header(struct snd_sof_dev *sdev, const struct firmware *fw,
|
|
size_t fw_offset)
|
|
{
|
|
struct snd_sof_fw_header *header;
|
|
size_t fw_size = fw->size - fw_offset;
|
|
|
|
if (fw->size <= fw_offset) {
|
|
dev_err(sdev->dev, "error: firmware size must be greater than firmware offset\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Read the header information from the data pointer */
|
|
header = (struct snd_sof_fw_header *)(fw->data + fw_offset);
|
|
|
|
/* verify FW sig */
|
|
if (strncmp(header->sig, SND_SOF_FW_SIG, SND_SOF_FW_SIG_SIZE) != 0) {
|
|
dev_err(sdev->dev, "error: invalid firmware signature\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* check size is valid */
|
|
if (fw_size != header->file_size + sizeof(*header)) {
|
|
dev_err(sdev->dev, "error: invalid filesize mismatch got 0x%zx expected 0x%zx\n",
|
|
fw_size, header->file_size + sizeof(*header));
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_dbg(sdev->dev, "header size=0x%x modules=0x%x abi=0x%x size=%zu\n",
|
|
header->file_size, header->num_modules,
|
|
header->abi, sizeof(*header));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int load_modules(struct snd_sof_dev *sdev, const struct firmware *fw,
|
|
size_t fw_offset)
|
|
{
|
|
struct snd_sof_fw_header *header;
|
|
struct snd_sof_mod_hdr *module;
|
|
int (*load_module)(struct snd_sof_dev *sof_dev,
|
|
struct snd_sof_mod_hdr *hdr);
|
|
int ret, count;
|
|
size_t remaining;
|
|
|
|
header = (struct snd_sof_fw_header *)(fw->data + fw_offset);
|
|
load_module = sof_ops(sdev)->load_module;
|
|
if (!load_module)
|
|
return -EINVAL;
|
|
|
|
/* parse each module */
|
|
module = (struct snd_sof_mod_hdr *)(fw->data + fw_offset +
|
|
sizeof(*header));
|
|
remaining = fw->size - sizeof(*header) - fw_offset;
|
|
/* check for wrap */
|
|
if (remaining > fw->size) {
|
|
dev_err(sdev->dev, "error: fw size smaller than header size\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
for (count = 0; count < header->num_modules; count++) {
|
|
/* check for wrap */
|
|
if (remaining < sizeof(*module)) {
|
|
dev_err(sdev->dev, "error: not enough data remaining\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* minus header size of module */
|
|
remaining -= sizeof(*module);
|
|
|
|
/* module */
|
|
ret = load_module(sdev, module);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: invalid module %d\n", count);
|
|
return ret;
|
|
}
|
|
|
|
if (remaining < module->size) {
|
|
dev_err(sdev->dev, "error: not enough data remaining\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* minus body size of module */
|
|
remaining -= module->size;
|
|
module = (struct snd_sof_mod_hdr *)((u8 *)module
|
|
+ sizeof(*module) + module->size);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_sof_load_firmware_raw(struct snd_sof_dev *sdev)
|
|
{
|
|
struct snd_sof_pdata *plat_data = sdev->pdata;
|
|
const char *fw_filename;
|
|
ssize_t ext_man_size;
|
|
int ret;
|
|
|
|
/* Don't request firmware again if firmware is already requested */
|
|
if (plat_data->fw)
|
|
return 0;
|
|
|
|
fw_filename = kasprintf(GFP_KERNEL, "%s/%s",
|
|
plat_data->fw_filename_prefix,
|
|
plat_data->fw_filename);
|
|
if (!fw_filename)
|
|
return -ENOMEM;
|
|
|
|
ret = request_firmware(&plat_data->fw, fw_filename, sdev->dev);
|
|
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: request firmware %s failed err: %d\n",
|
|
fw_filename, ret);
|
|
dev_err(sdev->dev,
|
|
"you may need to download the firmware from https://github.com/thesofproject/sof-bin/\n");
|
|
goto err;
|
|
} else {
|
|
dev_dbg(sdev->dev, "request_firmware %s successful\n",
|
|
fw_filename);
|
|
}
|
|
|
|
/* check for extended manifest */
|
|
ext_man_size = snd_sof_fw_ext_man_parse(sdev, plat_data->fw);
|
|
if (ext_man_size > 0) {
|
|
/* when no error occurred, drop extended manifest */
|
|
plat_data->fw_offset = ext_man_size;
|
|
} else if (!ext_man_size) {
|
|
/* No extended manifest, so nothing to skip during FW load */
|
|
dev_dbg(sdev->dev, "firmware doesn't contain extended manifest\n");
|
|
} else {
|
|
ret = ext_man_size;
|
|
dev_err(sdev->dev, "error: firmware %s contains unsupported or invalid extended manifest: %d\n",
|
|
fw_filename, ret);
|
|
}
|
|
|
|
err:
|
|
kfree(fw_filename);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(snd_sof_load_firmware_raw);
|
|
|
|
int snd_sof_load_firmware_memcpy(struct snd_sof_dev *sdev)
|
|
{
|
|
struct snd_sof_pdata *plat_data = sdev->pdata;
|
|
int ret;
|
|
|
|
ret = snd_sof_load_firmware_raw(sdev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* make sure the FW header and file is valid */
|
|
ret = check_header(sdev, plat_data->fw, plat_data->fw_offset);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: invalid FW header\n");
|
|
goto error;
|
|
}
|
|
|
|
/* prepare the DSP for FW loading */
|
|
ret = snd_sof_dsp_reset(sdev);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: failed to reset DSP\n");
|
|
goto error;
|
|
}
|
|
|
|
/* parse and load firmware modules to DSP */
|
|
ret = load_modules(sdev, plat_data->fw, plat_data->fw_offset);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: invalid FW modules\n");
|
|
goto error;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
release_firmware(plat_data->fw);
|
|
plat_data->fw = NULL;
|
|
return ret;
|
|
|
|
}
|
|
EXPORT_SYMBOL(snd_sof_load_firmware_memcpy);
|
|
|
|
int snd_sof_load_firmware(struct snd_sof_dev *sdev)
|
|
{
|
|
dev_dbg(sdev->dev, "loading firmware\n");
|
|
|
|
if (sof_ops(sdev)->load_firmware)
|
|
return sof_ops(sdev)->load_firmware(sdev);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(snd_sof_load_firmware);
|
|
|
|
int snd_sof_run_firmware(struct snd_sof_dev *sdev)
|
|
{
|
|
int ret;
|
|
|
|
init_waitqueue_head(&sdev->boot_wait);
|
|
|
|
/* create read-only fw_version debugfs to store boot version info */
|
|
if (sdev->first_boot) {
|
|
ret = snd_sof_debugfs_buf_item(sdev, &sdev->fw_version,
|
|
sizeof(sdev->fw_version),
|
|
"fw_version", 0444);
|
|
/* errors are only due to memory allocation, not debugfs */
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: snd_sof_debugfs_buf_item failed\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* perform pre fw run operations */
|
|
ret = snd_sof_dsp_pre_fw_run(sdev);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: failed pre fw run op\n");
|
|
return ret;
|
|
}
|
|
|
|
dev_dbg(sdev->dev, "booting DSP firmware\n");
|
|
|
|
/* boot the firmware on the DSP */
|
|
ret = snd_sof_dsp_run(sdev);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: failed to reset DSP\n");
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* now wait for the DSP to boot. There are 3 possible outcomes:
|
|
* 1. Boot wait times out indicating FW boot failure.
|
|
* 2. FW boots successfully and fw_ready op succeeds.
|
|
* 3. FW boots but fw_ready op fails.
|
|
*/
|
|
ret = wait_event_timeout(sdev->boot_wait,
|
|
sdev->fw_state > SOF_FW_BOOT_IN_PROGRESS,
|
|
msecs_to_jiffies(sdev->boot_timeout));
|
|
if (ret == 0) {
|
|
dev_err(sdev->dev, "error: firmware boot failure\n");
|
|
snd_sof_dsp_dbg_dump(sdev, SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX |
|
|
SOF_DBG_DUMP_TEXT | SOF_DBG_DUMP_PCI | SOF_DBG_DUMP_FORCE_ERR_LEVEL);
|
|
sdev->fw_state = SOF_FW_BOOT_FAILED;
|
|
return -EIO;
|
|
}
|
|
|
|
if (sdev->fw_state == SOF_FW_BOOT_COMPLETE)
|
|
dev_dbg(sdev->dev, "firmware boot complete\n");
|
|
else
|
|
return -EIO; /* FW boots but fw_ready op failed */
|
|
|
|
/* perform post fw run operations */
|
|
ret = snd_sof_dsp_post_fw_run(sdev);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: failed post fw run op\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(snd_sof_run_firmware);
|
|
|
|
void snd_sof_fw_unload(struct snd_sof_dev *sdev)
|
|
{
|
|
/* TODO: support module unloading at runtime */
|
|
}
|
|
EXPORT_SYMBOL(snd_sof_fw_unload);
|