diff options
Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 40 |
1 files changed, 15 insertions, 25 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 6c6ce9381535..f066ecd71939 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -194,23 +194,25 @@ struct mei_cl; * @list: link in callback queue * @cl: file client who is running this operation * @fop_type: file operation type - * @request_buffer: buffer to store request data - * @response_buffer: buffer to store response data + * @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 + * @status: io status of the cb * @internal: communication between driver and FW flag + * @completed: the transfer or reception has completed */ struct mei_cl_cb { struct list_head list; struct mei_cl *cl; enum mei_cb_file_ops fop_type; - struct mei_msg_data request_buffer; - struct mei_msg_data response_buffer; + struct mei_msg_data buf; unsigned long buf_idx; unsigned long read_time; struct file *file_object; + int status; u32 internal:1; + u32 completed:1; }; /** @@ -229,9 +231,9 @@ struct mei_cl_cb { * @me_client_id: me/fw id * @mei_flow_ctrl_creds: transmit flow credentials * @timer_count: watchdog timer for operation completion - * @reading_state: state of the rx * @writing_state: state of the tx - * @read_cb: current pending reading callback + * @rd_pending: pending read credits + * @rd_completed: completed read * * @device: device on the mei client bus * @device_link: link to bus clients @@ -249,9 +251,9 @@ struct mei_cl { u8 me_client_id; u8 mei_flow_ctrl_creds; u8 timer_count; - enum mei_file_transaction_states reading_state; enum mei_file_transaction_states writing_state; - struct mei_cl_cb *read_cb; + struct list_head rd_pending; + struct list_head rd_completed; /* MEI CL bus data */ struct mei_cl_device *device; @@ -423,7 +425,6 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @cdev : character device * @minor : minor number allocated for device * - * @read_list : read completion list * @write_list : write pending list * @write_waiting_list : write completion list * @ctrl_wr_list : pending control write list @@ -460,6 +461,7 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @version : HBM protocol version in use * @hbm_f_pg_supported : hbm feature pgi protocol * + * @me_clients_rwsem: rw lock over me_clients list * @me_clients : list of FW clients * @me_clients_map : FW clients bit map * @host_clients_map : host clients id pool @@ -480,12 +482,7 @@ const char *mei_pg_state_str(enum mei_pg_state state); * @iamthif_mtu : amthif client max message length * @iamthif_timer : time stamp of current amthif command completion * @iamthif_stall_timer : timer to detect amthif hang - * @iamthif_msg_buf : amthif current message buffer - * @iamthif_msg_buf_size : size of current amthif message request buffer - * @iamthif_msg_buf_index : current index in amthif message request buffer * @iamthif_state : amthif processor state - * @iamthif_flow_control_pending: amthif waits for flow control - * @iamthif_ioctl : wait for completion if amthif control message * @iamthif_canceled : current amthif command is canceled * * @init_work : work item for the device init @@ -503,7 +500,6 @@ struct mei_device { struct cdev cdev; int minor; - struct mei_cl_cb read_list; struct mei_cl_cb write_list; struct mei_cl_cb write_waiting_list; struct mei_cl_cb ctrl_wr_list; @@ -556,6 +552,7 @@ struct mei_device { struct hbm_version version; unsigned int hbm_f_pg_supported:1; + struct rw_semaphore me_clients_rwsem; struct list_head me_clients; DECLARE_BITMAP(me_clients_map, MEI_CLIENTS_MAX); DECLARE_BITMAP(host_clients_map, MEI_CLIENTS_MAX); @@ -579,12 +576,7 @@ struct mei_device { int iamthif_mtu; unsigned long iamthif_timer; u32 iamthif_stall_timer; - unsigned char *iamthif_msg_buf; /* Note: memory has to be allocated */ - u32 iamthif_msg_buf_size; - u32 iamthif_msg_buf_index; enum iamthif_states iamthif_state; - bool iamthif_flow_control_pending; - bool iamthif_ioctl; bool iamthif_canceled; struct work_struct init_work; @@ -662,8 +654,6 @@ void mei_amthif_reset_params(struct mei_device *dev); int mei_amthif_host_init(struct mei_device *dev); -int mei_amthif_write(struct mei_device *dev, struct mei_cl_cb *priv_cb); - int mei_amthif_read(struct mei_device *dev, struct file *file, char __user *ubuf, size_t length, loff_t *offset); @@ -675,13 +665,13 @@ 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); -void mei_amthif_run_next_cmd(struct mei_device *dev); - +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); -int mei_amthif_irq_read_msg(struct mei_device *dev, +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); |