/*
* watch dog definition
*/
-#define MEI_WATCHDOG_DATA_SIZE 16
-#define MEI_START_WD_DATA_SIZE 20
-#define MEI_WD_PARAMS_SIZE 4
+#define MEI_WD_HDR_SIZE 4
+#define MEI_WD_STOP_MSG_SIZE MEI_WD_HDR_SIZE
+#define MEI_WD_START_MSG_SIZE (MEI_WD_HDR_SIZE + 16)
+
+#define MEI_WD_DEFAULT_TIMEOUT 120 /* seconds */
+#define MEI_WD_MIN_TIMEOUT 120 /* seconds */
+#define MEI_WD_MAX_TIMEOUT 65535 /* seconds */
+
#define MEI_WD_STATE_INDEPENDENCE_MSG_SENT (1 << 0)
#define MEI_RD_MSG_BUF_SIZE (128 * sizeof(u32))
bool wd_stopped;
bool wd_bypass; /* if false, don't refresh watchdog ME client */
u16 wd_timeout; /* seconds ((wd_data[1] << 8) + wd_data[0]) */
- unsigned char wd_data[MEI_START_WD_DATA_SIZE];
+ unsigned char wd_data[MEI_WD_START_MSG_SIZE];
struct file *iamthif_file_object;
static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
{
dev_dbg(&dev->pdev->dev, "wd: set timeout=%d.\n", timeout);
- memcpy(dev->wd_data, mei_start_wd_params, MEI_WD_PARAMS_SIZE);
- memcpy(dev->wd_data + MEI_WD_PARAMS_SIZE, &timeout, sizeof(u16));
+ memcpy(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE);
+ memcpy(dev->wd_data + MEI_WD_HDR_SIZE, &timeout, sizeof(u16));
}
/**
/* look for WD client and connect to it */
dev->wd_cl.state = MEI_FILE_DISCONNECTED;
- dev->wd_timeout = AMT_WD_DEFAULT_TIMEOUT;
+ dev->wd_timeout = MEI_WD_DEFAULT_TIMEOUT;
/* find ME WD client */
mei_me_cl_update_filext(dev, &dev->wd_cl,
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;
+ if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE))
+ mei_hdr->length = MEI_WD_START_MSG_SIZE;
+ else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_HDR_SIZE))
+ mei_hdr->length = MEI_WD_STOP_MSG_SIZE;
else
return -EINVAL;
return 0;
dev->wd_timeout = 0;
- memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE);
+ memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_STOP_MSG_SIZE);
dev->stop = true;
ret = mei_flow_ctrl_creds(dev, &dev->wd_cl);
return -ENODEV;
/* Check Timeout value */
- if (timeout < AMT_WD_MIN_TIMEOUT || timeout > AMT_WD_MAX_TIMEOUT)
+ if (timeout < MEI_WD_MIN_TIMEOUT || timeout > MEI_WD_MAX_TIMEOUT)
return -EINVAL;
mutex_lock(&dev->device_lock);
static struct watchdog_device amt_wd_dev = {
.info = &wd_info,
.ops = &wd_ops,
- .timeout = AMT_WD_DEFAULT_TIMEOUT,
- .min_timeout = AMT_WD_MIN_TIMEOUT,
- .max_timeout = AMT_WD_MAX_TIMEOUT,
+ .timeout = MEI_WD_DEFAULT_TIMEOUT,
+ .min_timeout = MEI_WD_MIN_TIMEOUT,
+ .max_timeout = MEI_WD_MAX_TIMEOUT,
};