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path: root/drivers/misc/mei/mei_dev.h
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Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
-rw-r--r--drivers/misc/mei/mei_dev.h47
1 files changed, 30 insertions, 17 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 453f6a333b42..e25ee16c658e 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -89,6 +89,7 @@ enum file_state {
MEI_FILE_CONNECTED,
MEI_FILE_DISCONNECTING,
MEI_FILE_DISCONNECT_REPLY,
+ MEI_FILE_DISCONNECT_REQUIRED,
MEI_FILE_DISCONNECTED,
};
@@ -135,6 +136,8 @@ enum mei_wd_states {
* @MEI_FOP_CONNECT: connect
* @MEI_FOP_DISCONNECT: disconnect
* @MEI_FOP_DISCONNECT_RSP: disconnect response
+ * @MEI_FOP_NOTIFY_START: start notification
+ * @MEI_FOP_NOTIFY_STOP: stop notification
*/
enum mei_cb_file_ops {
MEI_FOP_READ = 0,
@@ -142,6 +145,8 @@ enum mei_cb_file_ops {
MEI_FOP_CONNECT,
MEI_FOP_DISCONNECT,
MEI_FOP_DISCONNECT_RSP,
+ MEI_FOP_NOTIFY_START,
+ MEI_FOP_NOTIFY_STOP,
};
/*
@@ -178,7 +183,7 @@ struct mei_fw_status {
* @client_id: me client id
* @mei_flow_ctrl_creds: flow control credits
* @connect_count: number connections to this client
- * @reserved: reserved
+ * @bus_added: added to bus
*/
struct mei_me_client {
struct list_head list;
@@ -187,7 +192,7 @@ struct mei_me_client {
u8 client_id;
u8 mei_flow_ctrl_creds;
u8 connect_count;
- u8 reserved;
+ u8 bus_added;
};
@@ -230,18 +235,21 @@ struct mei_cl_cb {
* @tx_wait: wait queue for tx completion
* @rx_wait: wait queue for rx completion
* @wait: wait queue for management operation
+ * @ev_wait: notification wait queue
+ * @ev_async: event async notification
* @status: connection status
* @me_cl: fw client connected
* @host_client_id: host id
* @mei_flow_ctrl_creds: transmit flow credentials
* @timer_count: watchdog timer for operation completion
* @reserved: reserved for alignment
+ * @notify_en: notification - enabled/disabled
+ * @notify_ev: pending notification event
* @writing_state: state of the tx
* @rd_pending: pending read credits
* @rd_completed: completed read
*
- * @device: device on the mei client bus
- * @device_link: link to bus clients
+ * @cldev: device on the mei client bus
*/
struct mei_cl {
struct list_head link;
@@ -250,19 +258,21 @@ struct mei_cl {
wait_queue_head_t tx_wait;
wait_queue_head_t rx_wait;
wait_queue_head_t wait;
+ wait_queue_head_t ev_wait;
+ struct fasync_struct *ev_async;
int status;
struct mei_me_client *me_cl;
u8 host_client_id;
u8 mei_flow_ctrl_creds;
u8 timer_count;
u8 reserved;
+ u8 notify_en;
+ u8 notify_ev;
enum mei_file_transaction_states writing_state;
struct list_head rd_pending;
struct list_head rd_completed;
- /* MEI CL bus data */
- struct mei_cl_device *device;
- struct list_head device_link;
+ struct mei_cl_device *cldev;
};
/** struct mei_hw_ops
@@ -329,21 +339,16 @@ struct mei_hw_ops {
};
/* MEI bus API*/
-
-struct mei_cl_device *mei_cl_add_device(struct mei_device *dev,
- struct mei_me_client *me_cl,
- struct mei_cl *cl,
- char *name);
-void mei_cl_remove_device(struct mei_cl_device *device);
-
+void mei_cl_bus_rescan(struct mei_device *bus);
+void mei_cl_dev_fixup(struct mei_cl_device *dev);
ssize_t __mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
bool blocking);
ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length);
void mei_cl_bus_rx_event(struct mei_cl *cl);
-void mei_cl_bus_remove_devices(struct mei_device *dev);
+void mei_cl_bus_notify_event(struct mei_cl *cl);
+void mei_cl_bus_remove_devices(struct mei_device *bus);
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);
/**
* enum mei_pg_event - power gating transition events
@@ -416,7 +421,10 @@ const char *mei_pg_state_str(enum mei_pg_state state);
* @wr_msg : the buffer for hbm control messages
*
* @version : HBM protocol version in use
- * @hbm_f_pg_supported : hbm feature pgi protocol
+ * @hbm_f_pg_supported : hbm feature pgi protocol
+ * @hbm_f_dc_supported : hbm feature dynamic clients
+ * @hbm_f_dot_supported : hbm feature disconnect on timeout
+ * @hbm_f_ev_supported : hbm feature event notification
*
* @me_clients_rwsem: rw lock over me_clients list
* @me_clients : list of FW clients
@@ -447,6 +455,7 @@ const char *mei_pg_state_str(enum mei_pg_state state);
* @reset_work : work item for the device reset
*
* @device_list : mei client bus list
+ * @cl_bus_lock : client bus list lock
*
* @dbgfs_dir : debugfs mei root directory
*
@@ -509,6 +518,9 @@ struct mei_device {
struct hbm_version version;
unsigned int hbm_f_pg_supported:1;
+ unsigned int hbm_f_dc_supported:1;
+ unsigned int hbm_f_dot_supported:1;
+ unsigned int hbm_f_ev_supported:1;
struct rw_semaphore me_clients_rwsem;
struct list_head me_clients;
@@ -543,6 +555,7 @@ struct mei_device {
/* List of bus devices */
struct list_head device_list;
+ struct mutex cl_bus_lock;
#if IS_ENABLED(CONFIG_DEBUG_FS)
struct dentry *dbgfs_dir;