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OpenCloudOS-Kernel/sound/soc/sof/ipc.c

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// 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>
//
// Generic IPC layer that can work over MMIO and SPI/I2C. PHY layer provided
// by platform driver code.
//
#include <linux/mutex.h>
#include <linux/types.h>
#include "sof-priv.h"
#include "ops.h"
/*
* IPC message default size and timeout (ms).
* TODO: allow platforms to set size and timeout.
*/
#define IPC_TIMEOUT_MS 300
static void ipc_trace_message(struct snd_sof_dev *sdev, u32 msg_id);
static void ipc_stream_message(struct snd_sof_dev *sdev, u32 msg_cmd);
/*
* IPC message Tx/Rx message handling.
*/
/* 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;
struct snd_sof_ipc_msg msg;
};
struct sof_ipc_ctrl_data_params {
size_t msg_bytes;
size_t hdr_bytes;
size_t pl_size;
size_t elems;
u32 num_msg;
u8 *src;
u8 *dst;
};
#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_VERBOSE_IPC)
static void ipc_log_header(struct device *dev, u8 *text, u32 cmd)
{
u8 *str;
u8 *str2 = NULL;
u32 glb;
u32 type;
glb = cmd & SOF_GLB_TYPE_MASK;
type = cmd & SOF_CMD_TYPE_MASK;
switch (glb) {
case SOF_IPC_GLB_REPLY:
str = "GLB_REPLY"; break;
case SOF_IPC_GLB_COMPOUND:
str = "GLB_COMPOUND"; break;
case SOF_IPC_GLB_TPLG_MSG:
str = "GLB_TPLG_MSG";
switch (type) {
case SOF_IPC_TPLG_COMP_NEW:
str2 = "COMP_NEW"; break;
case SOF_IPC_TPLG_COMP_FREE:
str2 = "COMP_FREE"; break;
case SOF_IPC_TPLG_COMP_CONNECT:
str2 = "COMP_CONNECT"; break;
case SOF_IPC_TPLG_PIPE_NEW:
str2 = "PIPE_NEW"; break;
case SOF_IPC_TPLG_PIPE_FREE:
str2 = "PIPE_FREE"; break;
case SOF_IPC_TPLG_PIPE_CONNECT:
str2 = "PIPE_CONNECT"; break;
case SOF_IPC_TPLG_PIPE_COMPLETE:
str2 = "PIPE_COMPLETE"; break;
case SOF_IPC_TPLG_BUFFER_NEW:
str2 = "BUFFER_NEW"; break;
case SOF_IPC_TPLG_BUFFER_FREE:
str2 = "BUFFER_FREE"; break;
default:
str2 = "unknown type"; break;
}
break;
case SOF_IPC_GLB_PM_MSG:
str = "GLB_PM_MSG";
switch (type) {
case SOF_IPC_PM_CTX_SAVE:
str2 = "CTX_SAVE"; break;
case SOF_IPC_PM_CTX_RESTORE:
str2 = "CTX_RESTORE"; break;
case SOF_IPC_PM_CTX_SIZE:
str2 = "CTX_SIZE"; break;
case SOF_IPC_PM_CLK_SET:
str2 = "CLK_SET"; break;
case SOF_IPC_PM_CLK_GET:
str2 = "CLK_GET"; break;
case SOF_IPC_PM_CLK_REQ:
str2 = "CLK_REQ"; break;
case SOF_IPC_PM_CORE_ENABLE:
str2 = "CORE_ENABLE"; break;
default:
str2 = "unknown type"; break;
}
break;
case SOF_IPC_GLB_COMP_MSG:
str = "GLB_COMP_MSG";
switch (type) {
case SOF_IPC_COMP_SET_VALUE:
str2 = "SET_VALUE"; break;
case SOF_IPC_COMP_GET_VALUE:
str2 = "GET_VALUE"; break;
case SOF_IPC_COMP_SET_DATA:
str2 = "SET_DATA"; break;
case SOF_IPC_COMP_GET_DATA:
str2 = "GET_DATA"; break;
default:
str2 = "unknown type"; break;
}
break;
case SOF_IPC_GLB_STREAM_MSG:
str = "GLB_STREAM_MSG";
switch (type) {
case SOF_IPC_STREAM_PCM_PARAMS:
str2 = "PCM_PARAMS"; break;
case SOF_IPC_STREAM_PCM_PARAMS_REPLY:
str2 = "PCM_REPLY"; break;
case SOF_IPC_STREAM_PCM_FREE:
str2 = "PCM_FREE"; break;
case SOF_IPC_STREAM_TRIG_START:
str2 = "TRIG_START"; break;
case SOF_IPC_STREAM_TRIG_STOP:
str2 = "TRIG_STOP"; break;
case SOF_IPC_STREAM_TRIG_PAUSE:
str2 = "TRIG_PAUSE"; break;
case SOF_IPC_STREAM_TRIG_RELEASE:
str2 = "TRIG_RELEASE"; break;
case SOF_IPC_STREAM_TRIG_DRAIN:
str2 = "TRIG_DRAIN"; break;
case SOF_IPC_STREAM_TRIG_XRUN:
str2 = "TRIG_XRUN"; break;
case SOF_IPC_STREAM_POSITION:
str2 = "POSITION"; break;
case SOF_IPC_STREAM_VORBIS_PARAMS:
str2 = "VORBIS_PARAMS"; break;
case SOF_IPC_STREAM_VORBIS_FREE:
str2 = "VORBIS_FREE"; break;
default:
str2 = "unknown type"; break;
}
break;
case SOF_IPC_FW_READY:
str = "FW_READY"; break;
case SOF_IPC_GLB_DAI_MSG:
str = "GLB_DAI_MSG";
switch (type) {
case SOF_IPC_DAI_CONFIG:
str2 = "CONFIG"; break;
case SOF_IPC_DAI_LOOPBACK:
str2 = "LOOPBACK"; break;
default:
str2 = "unknown type"; break;
}
break;
case SOF_IPC_GLB_TRACE_MSG:
str = "GLB_TRACE_MSG"; break;
case SOF_IPC_GLB_TEST_MSG:
str = "GLB_TEST_MSG";
switch (type) {
case SOF_IPC_TEST_IPC_FLOOD:
str2 = "IPC_FLOOD"; break;
default:
str2 = "unknown type"; break;
}
break;
default:
str = "unknown GLB command"; break;
}
if (str2)
dev_dbg(dev, "%s: 0x%x: %s: %s\n", text, cmd, str, str2);
else
dev_dbg(dev, "%s: 0x%x: %s\n", text, cmd, str);
}
#else
static inline void ipc_log_header(struct device *dev, u8 *text, u32 cmd)
{
if ((cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_TRACE_MSG)
dev_dbg(dev, "%s: 0x%x\n", text, cmd);
}
#endif
/* wait for IPC message reply */
static int tx_wait_done(struct snd_sof_ipc *ipc, struct snd_sof_ipc_msg *msg,
void *reply_data)
{
struct snd_sof_dev *sdev = ipc->sdev;
struct sof_ipc_cmd_hdr *hdr = msg->msg_data;
int ret;
/* wait for DSP IPC completion */
ret = wait_event_timeout(msg->waitq, msg->ipc_complete,
msecs_to_jiffies(IPC_TIMEOUT_MS));
if (ret == 0) {
dev_err(sdev->dev, "error: ipc timed out for 0x%x size %d\n",
hdr->cmd, hdr->size);
snd_sof_dsp_dbg_dump(ipc->sdev, SOF_DBG_REGS | SOF_DBG_MBOX);
snd_sof_ipc_dump(ipc->sdev);
snd_sof_trace_notify_for_error(ipc->sdev);
ret = -ETIMEDOUT;
} else {
/* copy the data returned from DSP */
ret = msg->reply_error;
if (msg->reply_size)
memcpy(reply_data, msg->reply_data, msg->reply_size);
if (ret < 0)
dev_err(sdev->dev, "error: ipc error for 0x%x size %zu\n",
hdr->cmd, msg->reply_size);
else
ipc_log_header(sdev->dev, "ipc tx succeeded", hdr->cmd);
}
return ret;
}
/* send IPC message from host to DSP */
static int sof_ipc_tx_message_unlocked(struct snd_sof_ipc *ipc, u32 header,
void *msg_data, size_t msg_bytes,
void *reply_data, size_t reply_bytes)
{
struct snd_sof_dev *sdev = ipc->sdev;
struct snd_sof_ipc_msg *msg;
int ret;
if (ipc->disable_ipc_tx)
return -ENODEV;
/*
* The spin-lock is also still needed to protect message objects against
* other atomic contexts.
*/
spin_lock_irq(&sdev->ipc_lock);
/* initialise the message */
msg = &ipc->msg;
msg->header = header;
msg->msg_size = msg_bytes;
msg->reply_size = reply_bytes;
msg->reply_error = 0;
/* attach any data */
if (msg_bytes)
memcpy(msg->msg_data, msg_data, msg_bytes);
sdev->msg = msg;
ret = snd_sof_dsp_send_msg(sdev, msg);
/* Next reply that we receive will be related to this message */
if (!ret)
msg->ipc_complete = false;
spin_unlock_irq(&sdev->ipc_lock);
if (ret < 0) {
/* So far IPC TX never fails, consider making the above void */
dev_err_ratelimited(sdev->dev,
"error: ipc tx failed with error %d\n",
ret);
return ret;
}
ipc_log_header(sdev->dev, "ipc tx", msg->header);
/* now wait for completion */
if (!ret)
ret = tx_wait_done(ipc, msg, reply_data);
return ret;
}
/* send IPC message from host to DSP */
int sof_ipc_tx_message(struct snd_sof_ipc *ipc, u32 header,
void *msg_data, size_t msg_bytes, void *reply_data,
size_t reply_bytes)
{
int ret;
if (msg_bytes > SOF_IPC_MSG_MAX_SIZE ||
reply_bytes > SOF_IPC_MSG_MAX_SIZE)
return -ENOBUFS;
/* Serialise IPC TX */
mutex_lock(&ipc->tx_mutex);
ret = sof_ipc_tx_message_unlocked(ipc, header, msg_data, msg_bytes,
reply_data, reply_bytes);
mutex_unlock(&ipc->tx_mutex);
return ret;
}
EXPORT_SYMBOL(sof_ipc_tx_message);
/* handle reply message from DSP */
int snd_sof_ipc_reply(struct snd_sof_dev *sdev, u32 msg_id)
{
struct snd_sof_ipc_msg *msg = &sdev->ipc->msg;
if (msg->ipc_complete) {
dev_err(sdev->dev, "error: no reply expected, received 0x%x",
msg_id);
return -EINVAL;
}
/* wake up and return the error if we have waiters on this message ? */
msg->ipc_complete = true;
wake_up(&msg->waitq);
return 0;
}
EXPORT_SYMBOL(snd_sof_ipc_reply);
/* DSP firmware has sent host a message */
void snd_sof_ipc_msgs_rx(struct snd_sof_dev *sdev)
{
struct sof_ipc_cmd_hdr hdr;
u32 cmd, type;
int err = 0;
/* read back header */
snd_sof_ipc_msg_data(sdev, NULL, &hdr, sizeof(hdr));
ipc_log_header(sdev->dev, "ipc rx", hdr.cmd);
cmd = hdr.cmd & SOF_GLB_TYPE_MASK;
type = hdr.cmd & SOF_CMD_TYPE_MASK;
/* check message type */
switch (cmd) {
case SOF_IPC_GLB_REPLY:
dev_err(sdev->dev, "error: ipc reply unknown\n");
break;
case SOF_IPC_FW_READY:
/* check for FW boot completion */
if (!sdev->boot_complete) {
err = sof_ops(sdev)->fw_ready(sdev, cmd);
if (err < 0) {
/*
* this indicates a mismatch in ABI
* between the driver and fw
*/
dev_err(sdev->dev, "error: ABI mismatch %d\n",
err);
} else {
/* firmware boot completed OK */
sdev->boot_complete = true;
}
/* wake up firmware loader */
wake_up(&sdev->boot_wait);
}
break;
case SOF_IPC_GLB_COMPOUND:
case SOF_IPC_GLB_TPLG_MSG:
case SOF_IPC_GLB_PM_MSG:
case SOF_IPC_GLB_COMP_MSG:
break;
case SOF_IPC_GLB_STREAM_MSG:
/* need to pass msg id into the function */
ipc_stream_message(sdev, hdr.cmd);
break;
case SOF_IPC_GLB_TRACE_MSG:
ipc_trace_message(sdev, type);
break;
default:
dev_err(sdev->dev, "error: unknown DSP message 0x%x\n", cmd);
break;
}
ipc_log_header(sdev->dev, "ipc rx done", hdr.cmd);
}
EXPORT_SYMBOL(snd_sof_ipc_msgs_rx);
/*
* IPC trace mechanism.
*/
static void ipc_trace_message(struct snd_sof_dev *sdev, u32 msg_id)
{
struct sof_ipc_dma_trace_posn posn;
switch (msg_id) {
case SOF_IPC_TRACE_DMA_POSITION:
/* read back full message */
snd_sof_ipc_msg_data(sdev, NULL, &posn, sizeof(posn));
snd_sof_trace_update_pos(sdev, &posn);
break;
default:
dev_err(sdev->dev, "error: unhandled trace message %x\n",
msg_id);
break;
}
}
/*
* IPC stream position.
*/
static void ipc_period_elapsed(struct snd_sof_dev *sdev, u32 msg_id)
{
struct snd_sof_pcm_stream *stream;
struct sof_ipc_stream_posn posn;
struct snd_sof_pcm *spcm;
int direction;
spcm = snd_sof_find_spcm_comp(sdev, msg_id, &direction);
if (!spcm) {
dev_err(sdev->dev,
"error: period elapsed for unknown stream, msg_id %d\n",
msg_id);
return;
}
stream = &spcm->stream[direction];
snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn));
dev_dbg(sdev->dev, "posn : host 0x%llx dai 0x%llx wall 0x%llx\n",
posn.host_posn, posn.dai_posn, posn.wallclock);
memcpy(&stream->posn, &posn, sizeof(posn));
/* only inform ALSA for period_wakeup mode */
if (!stream->substream->runtime->no_period_wakeup)
snd_sof_pcm_period_elapsed(stream->substream);
}
/* DSP notifies host of an XRUN within FW */
static void ipc_xrun(struct snd_sof_dev *sdev, u32 msg_id)
{
struct snd_sof_pcm_stream *stream;
struct sof_ipc_stream_posn posn;
struct snd_sof_pcm *spcm;
int direction;
spcm = snd_sof_find_spcm_comp(sdev, msg_id, &direction);
if (!spcm) {
dev_err(sdev->dev, "error: XRUN for unknown stream, msg_id %d\n",
msg_id);
return;
}
stream = &spcm->stream[direction];
snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn));
dev_dbg(sdev->dev, "posn XRUN: host %llx comp %d size %d\n",
posn.host_posn, posn.xrun_comp_id, posn.xrun_size);
#if defined(CONFIG_SND_SOC_SOF_DEBUG_XRUN_STOP)
/* stop PCM on XRUN - used for pipeline debug */
memcpy(&stream->posn, &posn, sizeof(posn));
snd_pcm_stop_xrun(stream->substream);
#endif
}
/* stream notifications from DSP FW */
static void ipc_stream_message(struct snd_sof_dev *sdev, u32 msg_cmd)
{
/* get msg cmd type and msd id */
u32 msg_type = msg_cmd & SOF_CMD_TYPE_MASK;
u32 msg_id = SOF_IPC_MESSAGE_ID(msg_cmd);
switch (msg_type) {
case SOF_IPC_STREAM_POSITION:
ipc_period_elapsed(sdev, msg_id);
break;
case SOF_IPC_STREAM_TRIG_XRUN:
ipc_xrun(sdev, msg_id);
break;
default:
dev_err(sdev->dev, "error: unhandled stream message %x\n",
msg_id);
break;
}
}
/* get stream position IPC - use faster MMIO method if available on platform */
int snd_sof_ipc_stream_posn(struct snd_sof_dev *sdev,
struct snd_sof_pcm *spcm, int direction,
struct sof_ipc_stream_posn *posn)
{
struct sof_ipc_stream stream;
int err;
/* read position via slower IPC */
stream.hdr.size = sizeof(stream);
stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_POSITION;
stream.comp_id = spcm->stream[direction].comp_id;
/* send IPC to the DSP */
err = sof_ipc_tx_message(sdev->ipc,
stream.hdr.cmd, &stream, sizeof(stream), &posn,
sizeof(*posn));
if (err < 0) {
dev_err(sdev->dev, "error: failed to get stream %d position\n",
stream.comp_id);
return err;
}
return 0;
}
EXPORT_SYMBOL(snd_sof_ipc_stream_posn);
static int sof_get_ctrl_copy_params(enum sof_ipc_ctrl_type ctrl_type,
struct sof_ipc_ctrl_data *src,
struct sof_ipc_ctrl_data *dst,
struct sof_ipc_ctrl_data_params *sparams)
{
switch (ctrl_type) {
case SOF_CTRL_TYPE_VALUE_CHAN_GET:
case SOF_CTRL_TYPE_VALUE_CHAN_SET:
sparams->src = (u8 *)src->chanv;
sparams->dst = (u8 *)dst->chanv;
break;
case SOF_CTRL_TYPE_VALUE_COMP_GET:
case SOF_CTRL_TYPE_VALUE_COMP_SET:
sparams->src = (u8 *)src->compv;
sparams->dst = (u8 *)dst->compv;
break;
case SOF_CTRL_TYPE_DATA_GET:
case SOF_CTRL_TYPE_DATA_SET:
sparams->src = (u8 *)src->data->data;
sparams->dst = (u8 *)dst->data->data;
break;
default:
return -EINVAL;
}
/* calculate payload size and number of messages */
sparams->pl_size = SOF_IPC_MSG_MAX_SIZE - sparams->hdr_bytes;
sparams->num_msg = DIV_ROUND_UP(sparams->msg_bytes, sparams->pl_size);
return 0;
}
static int sof_set_get_large_ctrl_data(struct snd_sof_dev *sdev,
struct sof_ipc_ctrl_data *cdata,
struct sof_ipc_ctrl_data_params *sparams,
bool send)
{
struct sof_ipc_ctrl_data *partdata;
size_t send_bytes;
size_t offset = 0;
size_t msg_bytes;
size_t pl_size;
int err;
int i;
/* allocate max ipc size because we have at least one */
partdata = kzalloc(SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
if (!partdata)
return -ENOMEM;
if (send)
err = sof_get_ctrl_copy_params(cdata->type, cdata, partdata,
sparams);
else
err = sof_get_ctrl_copy_params(cdata->type, partdata, cdata,
sparams);
if (err < 0)
return err;
msg_bytes = sparams->msg_bytes;
pl_size = sparams->pl_size;
/* copy the header data */
memcpy(partdata, cdata, sparams->hdr_bytes);
/* Serialise IPC TX */
mutex_lock(&sdev->ipc->tx_mutex);
/* copy the payload data in a loop */
for (i = 0; i < sparams->num_msg; i++) {
send_bytes = min(msg_bytes, pl_size);
partdata->num_elems = send_bytes;
partdata->rhdr.hdr.size = sparams->hdr_bytes + send_bytes;
partdata->msg_index = i;
msg_bytes -= send_bytes;
partdata->elems_remaining = msg_bytes;
if (send)
memcpy(sparams->dst, sparams->src + offset, send_bytes);
err = sof_ipc_tx_message_unlocked(sdev->ipc,
partdata->rhdr.hdr.cmd,
partdata,
partdata->rhdr.hdr.size,
partdata,
partdata->rhdr.hdr.size);
if (err < 0)
break;
if (!send)
memcpy(sparams->dst + offset, sparams->src, send_bytes);
offset += pl_size;
}
mutex_unlock(&sdev->ipc->tx_mutex);
kfree(partdata);
return err;
}
/*
* IPC get()/set() for kcontrols.
*/
int snd_sof_ipc_set_get_comp_data(struct snd_sof_ipc *ipc,
struct snd_sof_control *scontrol,
u32 ipc_cmd,
enum sof_ipc_ctrl_type ctrl_type,
enum sof_ipc_ctrl_cmd ctrl_cmd,
bool send)
{
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct snd_sof_dev *sdev = ipc->sdev;
struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
struct sof_ipc_fw_version *v = &ready->version;
struct sof_ipc_ctrl_data_params sparams;
size_t send_bytes;
int err;
/* read or write firmware volume */
if (scontrol->readback_offset != 0) {
/* write/read value header via mmaped region */
send_bytes = sizeof(struct sof_ipc_ctrl_value_chan) *
cdata->num_elems;
if (send)
snd_sof_dsp_block_write(sdev, sdev->mmio_bar,
scontrol->readback_offset,
cdata->chanv, send_bytes);
else
snd_sof_dsp_block_read(sdev, sdev->mmio_bar,
scontrol->readback_offset,
cdata->chanv, send_bytes);
return 0;
}
cdata->rhdr.hdr.cmd = SOF_IPC_GLB_COMP_MSG | ipc_cmd;
cdata->cmd = ctrl_cmd;
cdata->type = ctrl_type;
cdata->comp_id = scontrol->comp_id;
cdata->msg_index = 0;
/* calculate header and data size */
switch (cdata->type) {
case SOF_CTRL_TYPE_VALUE_CHAN_GET:
case SOF_CTRL_TYPE_VALUE_CHAN_SET:
sparams.msg_bytes = scontrol->num_channels *
sizeof(struct sof_ipc_ctrl_value_chan);
sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data);
sparams.elems = scontrol->num_channels;
break;
case SOF_CTRL_TYPE_VALUE_COMP_GET:
case SOF_CTRL_TYPE_VALUE_COMP_SET:
sparams.msg_bytes = scontrol->num_channels *
sizeof(struct sof_ipc_ctrl_value_comp);
sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data);
sparams.elems = scontrol->num_channels;
break;
case SOF_CTRL_TYPE_DATA_GET:
case SOF_CTRL_TYPE_DATA_SET:
sparams.msg_bytes = cdata->data->size;
sparams.hdr_bytes = sizeof(struct sof_ipc_ctrl_data) +
sizeof(struct sof_abi_hdr);
sparams.elems = cdata->data->size;
break;
default:
return -EINVAL;
}
cdata->rhdr.hdr.size = sparams.msg_bytes + sparams.hdr_bytes;
cdata->num_elems = sparams.elems;
cdata->elems_remaining = 0;
/* send normal size ipc in one part */
if (cdata->rhdr.hdr.size <= SOF_IPC_MSG_MAX_SIZE) {
err = sof_ipc_tx_message(sdev->ipc, cdata->rhdr.hdr.cmd, cdata,
cdata->rhdr.hdr.size, cdata,
cdata->rhdr.hdr.size);
if (err < 0)
dev_err(sdev->dev, "error: set/get ctrl ipc comp %d\n",
cdata->comp_id);
return err;
}
/* data is bigger than max ipc size, chop into smaller pieces */
dev_dbg(sdev->dev, "large ipc size %u, control size %u\n",
cdata->rhdr.hdr.size, scontrol->size);
/* large messages is only supported from ABI 3.3.0 onwards */
if (v->abi_version < SOF_ABI_VER(3, 3, 0)) {
dev_err(sdev->dev, "error: incompatible FW ABI version\n");
return -EINVAL;
}
err = sof_set_get_large_ctrl_data(sdev, cdata, &sparams, send);
if (err < 0)
dev_err(sdev->dev, "error: set/get large ctrl ipc comp %d\n",
cdata->comp_id);
return err;
}
EXPORT_SYMBOL(snd_sof_ipc_set_get_comp_data);
/*
* IPC layer enumeration.
*/
int snd_sof_dsp_mailbox_init(struct snd_sof_dev *sdev, u32 dspbox,
size_t dspbox_size, u32 hostbox,
size_t hostbox_size)
{
sdev->dsp_box.offset = dspbox;
sdev->dsp_box.size = dspbox_size;
sdev->host_box.offset = hostbox;
sdev->host_box.size = hostbox_size;
return 0;
}
EXPORT_SYMBOL(snd_sof_dsp_mailbox_init);
int snd_sof_ipc_valid(struct snd_sof_dev *sdev)
{
struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
struct sof_ipc_fw_version *v = &ready->version;
dev_info(sdev->dev,
"Firmware info: version %d:%d:%d-%s\n", v->major, v->minor,
v->micro, v->tag);
dev_info(sdev->dev,
"Firmware: ABI %d:%d:%d Kernel ABI %d:%d:%d\n",
SOF_ABI_VERSION_MAJOR(v->abi_version),
SOF_ABI_VERSION_MINOR(v->abi_version),
SOF_ABI_VERSION_PATCH(v->abi_version),
SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
if (SOF_ABI_VERSION_INCOMPATIBLE(SOF_ABI_VERSION, v->abi_version)) {
dev_err(sdev->dev, "error: incompatible FW ABI version\n");
return -EINVAL;
}
if (v->abi_version > SOF_ABI_VERSION) {
if (!IS_ENABLED(CONFIG_SND_SOC_SOF_STRICT_ABI_CHECKS)) {
dev_warn(sdev->dev, "warn: FW ABI is more recent than kernel\n");
} else {
dev_err(sdev->dev, "error: FW ABI is more recent than kernel\n");
return -EINVAL;
}
}
if (ready->flags & SOF_IPC_INFO_BUILD) {
dev_info(sdev->dev,
"Firmware debug build %d on %s-%s - options:\n"
" GDB: %s\n"
" lock debug: %s\n"
" lock vdebug: %s\n",
v->build, v->date, v->time,
(ready->flags & SOF_IPC_INFO_GDB) ?
"enabled" : "disabled",
(ready->flags & SOF_IPC_INFO_LOCKS) ?
"enabled" : "disabled",
(ready->flags & SOF_IPC_INFO_LOCKSV) ?
"enabled" : "disabled");
}
/* copy the fw_version into debugfs at first boot */
memcpy(&sdev->fw_version, v, sizeof(*v));
return 0;
}
EXPORT_SYMBOL(snd_sof_ipc_valid);
struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev)
{
struct snd_sof_ipc *ipc;
struct snd_sof_ipc_msg *msg;
/* check if mandatory ops required for ipc are defined */
if (!sof_ops(sdev)->fw_ready) {
dev_err(sdev->dev, "error: ipc mandatory ops not defined\n");
return NULL;
}
ipc = devm_kzalloc(sdev->dev, sizeof(*ipc), GFP_KERNEL);
if (!ipc)
return NULL;
mutex_init(&ipc->tx_mutex);
ipc->sdev = sdev;
msg = &ipc->msg;
/* indicate that we aren't sending a message ATM */
msg->ipc_complete = true;
/* pre-allocate message data */
msg->msg_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE,
GFP_KERNEL);
if (!msg->msg_data)
return NULL;
msg->reply_data = devm_kzalloc(sdev->dev, SOF_IPC_MSG_MAX_SIZE,
GFP_KERNEL);
if (!msg->reply_data)
return NULL;
init_waitqueue_head(&msg->waitq);
return ipc;
}
EXPORT_SYMBOL(snd_sof_ipc_init);
void snd_sof_ipc_free(struct snd_sof_dev *sdev)
{
struct snd_sof_ipc *ipc = sdev->ipc;
/* disable sending of ipc's */
mutex_lock(&ipc->tx_mutex);
ipc->disable_ipc_tx = true;
mutex_unlock(&ipc->tx_mutex);
}
EXPORT_SYMBOL(snd_sof_ipc_free);
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