diff options
Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 118 |
1 files changed, 20 insertions, 98 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 4250555d5e72..db78e6d99456 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -18,7 +18,7 @@ #define _MEI_DEV_H_ #include <linux/types.h> -#include <linux/watchdog.h> +#include <linux/cdev.h> #include <linux/poll.h> #include <linux/mei.h> #include <linux/mei_cl_bus.h> @@ -26,33 +26,13 @@ #include "hw.h" #include "hbm.h" -/* - * watch dog definition - */ -#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_STOP_TIMEOUT 10 /* msecs */ - -#define MEI_WD_STATE_INDEPENDENCE_MSG_SENT (1 << 0) - -#define MEI_RD_MSG_BUF_SIZE (128 * sizeof(u32)) - /* * AMTHI Client UUID */ extern const uuid_le mei_amthif_guid; -/* - * Watchdog Client UUID - */ -extern const uuid_le mei_wd_guid; +#define MEI_RD_MSG_BUF_SIZE (128 * sizeof(u32)) /* * Number of Maximum MEI Clients @@ -73,15 +53,6 @@ extern const uuid_le mei_wd_guid; */ #define MEI_MAX_OPEN_HANDLE_COUNT (MEI_CLIENTS_MAX - 1) -/* - * Internal Clients Number - */ -#define MEI_HOST_CLIENT_ID_ANY (-1) -#define MEI_HBM_HOST_CLIENT_ID 0 /* not used, just for documentation */ -#define MEI_WD_HOST_CLIENT_ID 1 -#define MEI_IAMTHIF_HOST_CLIENT_ID 2 - - /* File state */ enum file_state { MEI_FILE_INITIALIZING = 0, @@ -123,12 +94,6 @@ enum mei_file_transaction_states { MEI_READ_COMPLETE }; -enum mei_wd_states { - MEI_WD_IDLE, - MEI_WD_RUNNING, - MEI_WD_STOPPING, -}; - /** * enum mei_cb_file_ops - file operation associated with the callback * @MEI_FOP_READ: read @@ -153,7 +118,7 @@ enum mei_cb_file_ops { * Intel MEI message data struct */ struct mei_msg_data { - u32 size; + size_t size; unsigned char *data; }; @@ -206,8 +171,7 @@ struct mei_cl; * @fop_type: file operation type * @buf: buffer for data associated with the callback * @buf_idx: last read index - * @read_time: last read operation time stamp (iamthif) - * @file_object: pointer to file structure + * @fp: pointer to file structure * @status: io status of the cb * @internal: communication between driver and FW flag * @completed: the transfer or reception has completed @@ -217,9 +181,8 @@ struct mei_cl_cb { struct mei_cl *cl; enum mei_cb_file_ops fop_type; struct mei_msg_data buf; - unsigned long buf_idx; - unsigned long read_time; - struct file *file_object; + size_t buf_idx; + const struct file *fp; int status; u32 internal:1; u32 completed:1; @@ -341,12 +304,13 @@ struct mei_hw_ops { /* MEI bus API*/ void mei_cl_bus_rescan(struct mei_device *bus); +void mei_cl_bus_rescan_work(struct work_struct *work); void mei_cl_bus_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_notify_event(struct mei_cl *cl); +bool mei_cl_bus_rx_event(struct mei_cl *cl); +bool 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); @@ -404,7 +368,6 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @wait_hw_ready : wait queue for receive HW ready message form FW * @wait_pg : wait queue for receive PG message from FW * @wait_hbm_start : wait queue for receive HBM start message from FW - * @wait_stop_wd : wait queue for receive WD stop message from FW * * @reset_count : number of consecutive resets * @dev_state : device state @@ -426,6 +389,8 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @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 + * @hbm_f_fa_supported : hbm feature fixed address client + * @hbm_f_ie_supported : hbm feature immediate reply to enum request * * @me_clients_rwsem: rw lock over me_clients list * @me_clients : list of FW clients @@ -434,26 +399,19 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @me_client_index : last FW client index in enumeration * * @allow_fixed_address: allow user space to connect a fixed client - * - * @wd_cl : watchdog client - * @wd_state : watchdog client state - * @wd_pending : watchdog command is pending - * @wd_timeout : watchdog expiration timeout - * @wd_data : watchdog message buffer + * @override_fixed_address: force allow fixed address behavior * * @amthif_cmd_list : amthif list for cmd waiting - * @amthif_rd_complete_list : amthif list for reading completed cmd data - * @iamthif_file_object : file for current amthif operation + * @iamthif_fp : file for current amthif operation * @iamthif_cl : amthif host client * @iamthif_current_cb : amthif current operation callback * @iamthif_open_count : number of opened amthif connections - * @iamthif_timer : time stamp of current amthif command completion * @iamthif_stall_timer : timer to detect amthif hang * @iamthif_state : amthif processor state * @iamthif_canceled : current amthif command is canceled * - * @init_work : work item for the device init * @reset_work : work item for the device reset + * @bus_rescan_work : work item for the bus rescan * * @device_list : mei client bus list * @cl_bus_lock : client bus list lock @@ -486,7 +444,6 @@ struct mei_device { wait_queue_head_t wait_hw_ready; wait_queue_head_t wait_pg; wait_queue_head_t wait_hbm_start; - wait_queue_head_t wait_stop_wd; /* * mei device states @@ -522,6 +479,8 @@ struct mei_device { unsigned int hbm_f_dc_supported:1; unsigned int hbm_f_dot_supported:1; unsigned int hbm_f_ev_supported:1; + unsigned int hbm_f_fa_supported:1; + unsigned int hbm_f_ie_supported:1; struct rw_semaphore me_clients_rwsem; struct list_head me_clients; @@ -530,29 +489,21 @@ struct mei_device { unsigned long me_client_index; bool allow_fixed_address; - - struct mei_cl wd_cl; - enum mei_wd_states wd_state; - bool wd_pending; - u16 wd_timeout; - unsigned char wd_data[MEI_WD_START_MSG_SIZE]; - + bool override_fixed_address; /* amthif list for cmd waiting */ struct mei_cl_cb amthif_cmd_list; /* driver managed amthif list for reading completed amthif cmd data */ - struct mei_cl_cb amthif_rd_complete_list; - struct file *iamthif_file_object; + const struct file *iamthif_fp; struct mei_cl iamthif_cl; struct mei_cl_cb *iamthif_current_cb; long iamthif_open_count; - unsigned long iamthif_timer; u32 iamthif_stall_timer; enum iamthif_states iamthif_state; bool iamthif_canceled; - struct work_struct init_work; struct work_struct reset_work; + struct work_struct bus_rescan_work; /* List of bus devices */ struct list_head device_list; @@ -635,47 +586,18 @@ unsigned int mei_amthif_poll(struct mei_device *dev, int mei_amthif_release(struct mei_device *dev, struct file *file); -struct mei_cl_cb *mei_amthif_find_read_list_entry(struct mei_device *dev, - struct file *file); - int mei_amthif_write(struct mei_cl *cl, struct mei_cl_cb *cb); int mei_amthif_run_next_cmd(struct mei_device *dev); int mei_amthif_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb, struct mei_cl_cb *cmpl_list); -void mei_amthif_complete(struct mei_device *dev, struct mei_cl_cb *cb); +void mei_amthif_complete(struct mei_cl *cl, struct mei_cl_cb *cb); int mei_amthif_irq_read_msg(struct mei_cl *cl, struct mei_msg_hdr *mei_hdr, struct mei_cl_cb *complete_list); int mei_amthif_irq_read(struct mei_device *dev, s32 *slots); /* - * NFC functions - */ -int mei_nfc_host_init(struct mei_device *dev, struct mei_me_client *me_cl); -void mei_nfc_host_exit(struct mei_device *dev); - -/* - * NFC Client UUID - */ -extern const uuid_le mei_nfc_guid; - -int mei_wd_send(struct mei_device *dev); -int mei_wd_stop(struct mei_device *dev); -int mei_wd_host_init(struct mei_device *dev, struct mei_me_client *me_cl); -/* - * mei_watchdog_register - Registering watchdog interface - * once we got connection to the WD Client - * @dev: mei device - */ -int mei_watchdog_register(struct mei_device *dev); -/* - * mei_watchdog_unregister - Unregistering watchdog interface - * @dev: mei device - */ -void mei_watchdog_unregister(struct mei_device *dev); - -/* * Register Access Function */ |