linux/sound/soc/sof/ipc.c
Pierre-Louis Bossart 277ff2364b
ASoC: SOF: IPC: reduce verbosity of IPC pointer updates
When using dynamic debug, the console is swamped with verbose position
pointer logs, which really don't add much information. Move then to
vdbg to keep traces usable and allow for easier end-user support.

Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200824200912.46852-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-08-25 20:39:37 +01:00

867 lines
22 KiB
C

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//
// 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 "sof-audio.h"
#include "ops.h"
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;
bool vdbg = false;
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:
vdbg = true;
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) {
if (vdbg)
dev_vdbg(dev, "%s: 0x%x: %s: %s\n", text, cmd, str, str2);
else
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(sdev->ipc_timeout));
if (ret == 0) {
dev_err(sdev->dev, "error: ipc timed out for 0x%x size %d\n",
hdr->cmd, hdr->size);
snd_sof_handle_fw_exception(ipc->sdev);
ret = -ETIMEDOUT;
} else {
ret = msg->reply_error;
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);
if (msg->reply_size)
/* copy the data returned from DSP */
memcpy(reply_data, msg->reply_data,
msg->reply_size);
}
}
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) {
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)
{
const struct sof_dsp_power_state target_state = {
.state = SOF_DSP_PM_D0,
};
int ret;
/* ensure the DSP is in D0 before sending a new IPC */
ret = snd_sof_dsp_set_power_state(ipc->sdev, &target_state);
if (ret < 0) {
dev_err(ipc->sdev->dev, "error: resuming DSP %d\n", ret);
return ret;
}
return sof_ipc_tx_message_no_pm(ipc, header, msg_data, msg_bytes,
reply_data, reply_bytes);
}
EXPORT_SYMBOL(sof_ipc_tx_message);
/*
* send IPC message from host to DSP without modifying the DSP state.
* This will be used for IPC's that can be handled by the DSP
* even in a low-power D0 substate.
*/
int sof_ipc_tx_message_no_pm(struct snd_sof_ipc *ipc, u32 header,
void *msg_data, size_t msg_bytes,
void *reply_data, size_t reply_bytes)
{
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_no_pm);
/* handle reply message from DSP */
void 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_dbg(sdev->dev,
"no reply expected, received 0x%x, will be ignored",
msg_id);
return;
}
/* wake up and return the error if we have waiters on this message ? */
msg->ipc_complete = true;
wake_up(&msg->waitq);
}
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->fw_state == SOF_FW_BOOT_IN_PROGRESS) {
err = sof_ops(sdev)->fw_ready(sdev, cmd);
if (err < 0)
sdev->fw_state = SOF_FW_BOOT_READY_FAILED;
else
sdev->fw_state = SOF_FW_BOOT_COMPLETE;
/* 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_soc_component *scomp = sdev->component;
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(scomp, 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_vdbg(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_soc_component *scomp = sdev->component;
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(scomp, 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_soc_component *scomp,
struct snd_sof_pcm *spcm, int direction,
struct sof_ipc_stream_posn *posn)
{
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
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) {
kfree(partdata);
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_control *scontrol,
u32 ipc_cmd,
enum sof_ipc_ctrl_type ctrl_type,
enum sof_ipc_ctrl_cmd ctrl_cmd,
bool send)
{
struct snd_soc_component *scomp = scontrol->scomp;
struct sof_ipc_ctrl_data *cdata = scontrol->control_data;
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
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;
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;
if (!ipc)
return;
/* 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);