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Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
-rw-r--r--drivers/misc/mei/mei_dev.h39
1 files changed, 33 insertions, 6 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 61b04d7646f1..3dad74a8d496 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -152,7 +152,10 @@ struct mei_msg_data {
};
/* Maximum number of processed FW status registers */
-#define MEI_FW_STATUS_MAX 2
+#define MEI_FW_STATUS_MAX 6
+/* Minimal buffer for FW status string (8 bytes in dw + space or '\0') */
+#define MEI_FW_STATUS_STR_SZ (MEI_FW_STATUS_MAX * (8 + 1))
+
/*
* struct mei_fw_status - storage of FW status data
@@ -349,6 +352,7 @@ void mei_cl_bus_rx_event(struct mei_cl *cl);
void mei_cl_bus_remove_devices(struct mei_device *dev);
int mei_cl_bus_init(void);
void mei_cl_bus_exit(void);
+struct mei_cl *mei_cl_bus_find_cl_by_uuid(struct mei_device *dev, uuid_le uuid);
/**
@@ -804,11 +808,6 @@ static inline int mei_fw_status(struct mei_device *dev,
return dev->ops->fw_status(dev, fw_status);
}
-#define FW_STS_FMT "%08X %08X"
-#define FW_STS_PRM(fw_status) \
- (fw_status).count > 0 ? (fw_status).status[0] : 0xDEADBEEF, \
- (fw_status).count > 1 ? (fw_status).status[1] : 0xDEADBEEF
-
bool mei_hbuf_acquire(struct mei_device *dev);
bool mei_write_is_idle(struct mei_device *dev);
@@ -832,4 +831,32 @@ void mei_deregister(struct mei_device *dev);
(hdr)->host_addr, (hdr)->me_addr, \
(hdr)->length, (hdr)->internal, (hdr)->msg_complete
+ssize_t mei_fw_status2str(struct mei_fw_status *fw_sts, char *buf, size_t len);
+/**
+ * mei_fw_status_str - fetch and convert fw status registers to printable string
+ *
+ * @dev: the device structure
+ * @buf: string buffer at minimal size MEI_FW_STATUS_STR_SZ
+ * @len: buffer len must be >= MEI_FW_STATUS_STR_SZ
+ *
+ * Return: number of bytes written or < 0 on failure
+ */
+static inline ssize_t mei_fw_status_str(struct mei_device *dev,
+ char *buf, size_t len)
+{
+ struct mei_fw_status fw_status;
+ int ret;
+
+ buf[0] = '\0';
+
+ ret = mei_fw_status(dev, &fw_status);
+ if (ret)
+ return ret;
+
+ ret = mei_fw_status2str(&fw_status, buf, MEI_FW_STATUS_STR_SZ);
+
+ return ret;
+}
+
+
#endif