From: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Add the implementation for the set_get_data callback for handling large
data set and get.
The set_get_data() in IPC3 can be used only for component messages. The
function expects the caller to prepare the message behind the data pointer
for sending/receiving data. The callback only implements the needed code
to be able to split up a message if needed for transfer.
The set_get_data ops is based on the existing
snd_sof_ipc_set_get_comp_data() and sof_set_get_large_ctrl_data() but made
it generic entry point.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Reviewed-by: Daniel Baluta <daniel.baluta@xxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
---
sound/soc/sof/ipc3.c | 103 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 103 insertions(+)
diff --git a/sound/soc/sof/ipc3.c b/sound/soc/sof/ipc3.c
index 6b59d4d0727f..9aa263b4af0a 100644
--- a/sound/soc/sof/ipc3.c
+++ b/sound/soc/sof/ipc3.c
@@ -7,6 +7,8 @@
//
//
+#include <sound/sof/stream.h>
+#include <sound/sof/control.h>
#include "sof-priv.h"
#include "ipc3-ops.h"
#include "ops.h"
@@ -316,6 +318,106 @@ static int sof_ipc3_tx_msg(struct snd_sof_dev *sdev, void *msg_data, size_t msg_
return ret;
}
+static int sof_ipc3_set_get_data(struct snd_sof_dev *sdev, void *data, size_t data_bytes,
+ bool set)
+{
+ size_t msg_bytes, hdr_bytes, payload_size, send_bytes;
+ struct sof_ipc_ctrl_data *cdata = data;
+ struct sof_ipc_ctrl_data *cdata_chunk;
+ struct snd_sof_ipc *ipc = sdev->ipc;
+ size_t offset = 0;
+ u8 *src, *dst;
+ u32 num_msg;
+ int ret = 0;
+ int i;
+
+ if (!cdata || data_bytes < sizeof(*cdata))
+ return -EINVAL;
+
+ if ((cdata->rhdr.hdr.cmd & SOF_GLB_TYPE_MASK) != SOF_IPC_GLB_COMP_MSG) {
+ dev_err(sdev->dev, "%s: Not supported message type of %#x\n",
+ __func__, cdata->rhdr.hdr.cmd);
+ return -EINVAL;
+ }
+
+ /* send normal size ipc in one part */
+ if (cdata->rhdr.hdr.size <= ipc->max_payload_size)
+ return sof_ipc3_tx_msg(sdev, cdata, cdata->rhdr.hdr.size,
+ cdata, cdata->rhdr.hdr.size, false);
+
+ cdata_chunk = kzalloc(ipc->max_payload_size, GFP_KERNEL);
+ if (!cdata_chunk)
+ return -ENOMEM;
+
+ switch (cdata->type) {
+ case SOF_CTRL_TYPE_VALUE_CHAN_GET:
+ case SOF_CTRL_TYPE_VALUE_CHAN_SET:
+ hdr_bytes = sizeof(struct sof_ipc_ctrl_data);
+ if (set) {
+ src = (u8 *)cdata->chanv;
+ dst = (u8 *)cdata_chunk->chanv;
+ } else {
+ src = (u8 *)cdata_chunk->chanv;
+ dst = (u8 *)cdata->chanv;
+ }
+ break;
+ case SOF_CTRL_TYPE_DATA_GET:
+ case SOF_CTRL_TYPE_DATA_SET:
+ hdr_bytes = sizeof(struct sof_ipc_ctrl_data) + sizeof(struct sof_abi_hdr);
+ if (set) {
+ src = (u8 *)cdata->data->data;
+ dst = (u8 *)cdata_chunk->data->data;
+ } else {
+ src = (u8 *)cdata_chunk->data->data;
+ dst = (u8 *)cdata->data->data;
+ }
+ break;
+ default:
+ kfree(cdata_chunk);
+ return -EINVAL;
+ }
+
+ msg_bytes = cdata->rhdr.hdr.size - hdr_bytes;
+ payload_size = ipc->max_payload_size - hdr_bytes;
+ num_msg = DIV_ROUND_UP(msg_bytes, payload_size);
+
+ /* copy the header data */
+ memcpy(cdata_chunk, cdata, hdr_bytes);
+
+ /* Serialise IPC TX */
+ mutex_lock(&sdev->ipc->tx_mutex);
+
+ /* copy the payload data in a loop */
+ for (i = 0; i < num_msg; i++) {
+ send_bytes = min(msg_bytes, payload_size);
+ cdata_chunk->num_elems = send_bytes;
+ cdata_chunk->rhdr.hdr.size = hdr_bytes + send_bytes;
+ cdata_chunk->msg_index = i;
+ msg_bytes -= send_bytes;
+ cdata_chunk->elems_remaining = msg_bytes;
+
+ if (set)
+ memcpy(dst, src + offset, send_bytes);
+
+ ret = ipc3_tx_msg_unlocked(sdev->ipc,
+ cdata_chunk, cdata_chunk->rhdr.hdr.size,
+ cdata_chunk, cdata_chunk->rhdr.hdr.size);
+ if (ret < 0)
+ break;
+
+ if (!set)
+ memcpy(dst + offset, src, send_bytes);
+
+ offset += payload_size;
+ }
+
+ mutex_unlock(&sdev->ipc->tx_mutex);
+
+ kfree(cdata_chunk);
+
+ return ret;
+}
+
static int sof_ipc3_ctx_ipc(struct snd_sof_dev *sdev, int cmd)
{
struct sof_ipc_pm_ctx pm_ctx = {
@@ -350,4 +452,5 @@ const struct sof_ipc_ops ipc3_ops = {
.pcm = &ipc3_pcm_ops,
.tx_msg = sof_ipc3_tx_msg,
+ .set_get_data = sof_ipc3_set_get_data,
};
--
2.25.1
