From: Peter Ujfalusi peter.ujfalusi@linux.intel.com
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@linux.intel.com Reviewed-by: Daniel Baluta daniel.baluta@nxp.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- 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, };