/**
* mei_wd_send - sends watch dog message to fw.
*
* @dev: the device structure
*
* Return: 0 if success,
* -EIO when message send fails
* -EINVAL when invalid message is to be sent
* -ENODEV on flow control failure
*/
int mei_wd_send(struct mei_device *dev)
{
struct mei_cl *cl = &dev->wd_cl;
struct mei_msg_hdr hdr;
int ret;
hdr.host_addr = cl->host_client_id;
hdr.me_addr = mei_cl_me_id(cl);
hdr.msg_complete = 1;
hdr.reserved = 0;
hdr.internal = 0;
if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE))
hdr.length = MEI_WD_START_MSG_SIZE;
else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_HDR_SIZE))
hdr.length = MEI_WD_STOP_MSG_SIZE;
else {
dev_err(dev->dev, "wd: invalid message is to be sent, aborting\n");
return -EINVAL;
}
ret = mei_write_message(dev, &hdr, dev->wd_data);
if (ret) {
dev_err(dev->dev, "wd: write message failed\n");
return ret;
}
ret = mei_cl_flow_ctrl_reduce(cl);
if (ret) {
dev_err(dev->dev, "wd: flow_ctrl_reduce failed.\n");
return ret;
}
return 0;
}
/**
* mei_wd_send - sends watch dog message to fw.
*
* @dev: the device structure
*
* returns 0 if success,
* -EIO when message send fails
* -EINVAL when invalid message is to be sent
*/
int mei_wd_send(struct mei_device *dev)
{
struct mei_msg_hdr hdr;
hdr.host_addr = dev->wd_cl.host_client_id;
hdr.me_addr = dev->wd_cl.me_client_id;
hdr.msg_complete = 1;
hdr.reserved = 0;
if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE))
hdr.length = MEI_WD_START_MSG_SIZE;
else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_HDR_SIZE))
hdr.length = MEI_WD_STOP_MSG_SIZE;
else
return -EINVAL;
return mei_write_message(dev, &hdr, dev->wd_data);
}
/**
* mei_wd_send - sends watch dog message to fw.
*
* @dev: the device structure
*
* returns 0 if success,
* -EIO when message send fails
* -EINVAL when invalid message is to be sent
*/
int mei_wd_send(struct mei_device *dev)
{
struct mei_msg_hdr *mei_hdr;
mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0];
mei_hdr->host_addr = dev->wd_cl.host_client_id;
mei_hdr->me_addr = dev->wd_cl.me_client_id;
mei_hdr->msg_complete = 1;
mei_hdr->reserved = 0;
if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_PARAMS_SIZE))
mei_hdr->length = MEI_START_WD_DATA_SIZE;
else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE))
mei_hdr->length = MEI_WD_PARAMS_SIZE;
else
return -EINVAL;
return mei_write_message(dev, mei_hdr, dev->wd_data, mei_hdr->length);
}
