From: Peter Ujfalusi peter.ujfalusi@linux.intel.com
Add the implementation for the rx_msg callback to handle message reception for IPC3.
The implementation is equivalent to the currently used code in ipc.c
Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Daniel Baluta daniel.baluta@nxp.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- sound/soc/sof/ipc3.c | 212 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 212 insertions(+)
diff --git a/sound/soc/sof/ipc3.c b/sound/soc/sof/ipc3.c index 2ecd3bb061f3..8480a1b5733a 100644 --- a/sound/soc/sof/ipc3.c +++ b/sound/soc/sof/ipc3.c @@ -10,9 +10,12 @@ #include <sound/sof/stream.h> #include <sound/sof/control.h> #include "sof-priv.h" +#include "sof-audio.h" #include "ipc3-ops.h" #include "ops.h"
+typedef void (*ipc3_rx_callback)(struct snd_sof_dev *sdev, void *msg_buf); + #if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_VERBOSE_IPC) static void ipc3_log_header(struct device *dev, u8 *text, u32 cmd) { @@ -472,6 +475,214 @@ static int sof_ipc3_set_get_data(struct snd_sof_dev *sdev, void *data, size_t da return ret; }
+/* IPC stream position. */ +static void ipc3_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, ret; + + spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction); + if (!spcm) { + dev_err(sdev->dev, "period elapsed for unknown stream, msg_id %d\n", + msg_id); + return; + } + + stream = &spcm->stream[direction]; + ret = snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn)); + if (ret < 0) { + dev_warn(sdev->dev, "failed to read stream position: %d\n", ret); + return; + } + + 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)); + + if (spcm->pcm.compress) + snd_sof_compr_fragment_elapsed(stream->cstream); + else if (stream->substream->runtime && + !stream->substream->runtime->no_period_wakeup) + /* only inform ALSA for period_wakeup mode */ + snd_sof_pcm_period_elapsed(stream->substream); +} + +/* DSP notifies host of an XRUN within FW */ +static void ipc3_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, ret; + + spcm = snd_sof_find_spcm_comp(scomp, msg_id, &direction); + if (!spcm) { + dev_err(sdev->dev, "XRUN for unknown stream, msg_id %d\n", + msg_id); + return; + } + + stream = &spcm->stream[direction]; + ret = snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn)); + if (ret < 0) { + dev_warn(sdev->dev, "failed to read overrun position: %d\n", ret); + return; + } + + 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 firmware */ +static void ipc3_stream_message(struct snd_sof_dev *sdev, void *msg_buf) +{ + struct sof_ipc_cmd_hdr *hdr = msg_buf; + u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK; + u32 msg_id = SOF_IPC_MESSAGE_ID(hdr->cmd); + + switch (msg_type) { + case SOF_IPC_STREAM_POSITION: + ipc3_period_elapsed(sdev, msg_id); + break; + case SOF_IPC_STREAM_TRIG_XRUN: + ipc3_xrun(sdev, msg_id); + break; + default: + dev_err(sdev->dev, "unhandled stream message %#x\n", + msg_id); + break; + } +} + +/* component notifications from firmware */ +static void ipc3_comp_notification(struct snd_sof_dev *sdev, void *msg_buf) +{ + const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg; + struct sof_ipc_cmd_hdr *hdr = msg_buf; + u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK; + + switch (msg_type) { + case SOF_IPC_COMP_GET_VALUE: + case SOF_IPC_COMP_GET_DATA: + break; + default: + dev_err(sdev->dev, "unhandled component message %#x\n", msg_type); + return; + } + + if (tplg_ops->control->update) + tplg_ops->control->update(sdev, msg_buf); +} + +static void ipc3_trace_message(struct snd_sof_dev *sdev, void *msg_buf) +{ + struct sof_ipc_cmd_hdr *hdr = msg_buf; + u32 msg_type = hdr->cmd & SOF_CMD_TYPE_MASK; + + switch (msg_type) { + case SOF_IPC_TRACE_DMA_POSITION: + snd_sof_trace_update_pos(sdev, msg_buf); + break; + default: + dev_err(sdev->dev, "unhandled trace message %#x\n", msg_type); + break; + } +} + +/* DSP firmware has sent host a message */ +static void sof_ipc3_rx_msg(struct snd_sof_dev *sdev) +{ + ipc3_rx_callback rx_callback = NULL; + struct sof_ipc_cmd_hdr hdr; + void *msg_buf; + u32 cmd; + int err; + + /* read back header */ + err = snd_sof_ipc_msg_data(sdev, NULL, &hdr, sizeof(hdr)); + if (err < 0) { + dev_warn(sdev->dev, "failed to read IPC header: %d\n", err); + return; + } + + if (hdr.size < sizeof(hdr)) { + dev_err(sdev->dev, "The received message size is invalid\n"); + return; + } + + ipc3_log_header(sdev->dev, "ipc rx", hdr.cmd); + + cmd = hdr.cmd & SOF_GLB_TYPE_MASK; + + /* check message type */ + switch (cmd) { + case SOF_IPC_GLB_REPLY: + dev_err(sdev->dev, "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) + sof_set_fw_state(sdev, SOF_FW_BOOT_READY_FAILED); + else + sof_set_fw_state(sdev, SOF_FW_BOOT_READY_OK); + + /* 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: + break; + case SOF_IPC_GLB_COMP_MSG: + rx_callback = ipc3_comp_notification; + break; + case SOF_IPC_GLB_STREAM_MSG: + rx_callback = ipc3_stream_message; + break; + case SOF_IPC_GLB_TRACE_MSG: + rx_callback = ipc3_trace_message; + break; + default: + dev_err(sdev->dev, "%s: Unknown DSP message: 0x%x\n", __func__, cmd); + break; + } + + /* read the full message */ + msg_buf = kmalloc(hdr.size, GFP_KERNEL); + if (!msg_buf) + return; + + err = snd_sof_ipc_msg_data(sdev, NULL, msg_buf, hdr.size); + if (err < 0) { + dev_err(sdev->dev, "%s: Failed to read message: %d\n", __func__, err); + } else { + /* Call local handler for the message */ + if (rx_callback) + rx_callback(sdev, msg_buf); + + /* Notify registered clients */ + sof_client_ipc_rx_dispatcher(sdev, msg_buf); + } + + kfree(msg_buf); + + ipc3_log_header(sdev->dev, "ipc rx done", hdr.cmd); +} + static int sof_ipc3_ctx_ipc(struct snd_sof_dev *sdev, int cmd) { struct sof_ipc_pm_ctx pm_ctx = { @@ -506,6 +717,7 @@ const struct sof_ipc_ops ipc3_ops = { .pcm = &ipc3_pcm_ops,
.tx_msg = sof_ipc3_tx_msg, + .rx_msg = sof_ipc3_rx_msg, .set_get_data = sof_ipc3_set_get_data, .get_reply = sof_ipc3_get_reply, };