diff options
Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 155 |
1 files changed, 112 insertions, 43 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index adb35fb9281c..25da04549d04 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -19,6 +19,7 @@ #include <linux/types.h> #include <linux/watchdog.h> +#include <linux/poll.h> #include <linux/mei.h> #include "hw.h" @@ -125,13 +126,20 @@ enum mei_wd_states { MEI_WD_STOPPING, }; -/* MEI CB */ -enum mei_cb_major_types { - MEI_READ = 0, - MEI_WRITE, - MEI_IOCTL, - MEI_OPEN, - MEI_CLOSE +/** + * enum mei_cb_file_ops - file operation associated with the callback + * @MEI_FOP_READ - read + * @MEI_FOP_WRITE - write + * @MEI_FOP_IOCTL - ioctl + * @MEI_FOP_OPEN - open + * @MEI_FOP_CLOSE - close + */ +enum mei_cb_file_ops { + MEI_FOP_READ = 0, + MEI_FOP_WRITE, + MEI_FOP_IOCTL, + MEI_FOP_OPEN, + MEI_FOP_CLOSE }; /* @@ -143,13 +151,21 @@ struct mei_message_data { }; +struct mei_cl; + +/** + * struct mei_cl_cb - file operation callback structure + * + * @cl - file client who is running this operation + * @fop_type - file operation type + */ struct mei_cl_cb { - struct list_head cb_list; - enum mei_cb_major_types major_file_operations; - void *file_private; + struct list_head list; + struct mei_cl *cl; + enum mei_cb_file_ops fop_type; struct mei_message_data request_buffer; struct mei_message_data response_buffer; - unsigned long information; + unsigned long buf_idx; unsigned long read_time; struct file *file_object; }; @@ -175,29 +191,23 @@ struct mei_cl { struct mei_cl_cb *read_cb; }; -struct mei_io_list { - struct mei_cl_cb mei_cb; -}; - /** - * struct mei_deive - MEI private device struct + * struct mei_device - MEI private device struct * @hbuf_depth - depth of host(write) buffer + * @wr_ext_msg - buffer for hbm control responses (set in read cycle) */ struct mei_device { struct pci_dev *pdev; /* pointer to pci device struct */ /* * lists of queues */ - /* array of pointers to aio lists */ - struct mei_io_list read_list; /* driver read queue */ - struct mei_io_list write_list; /* driver write queue */ - struct mei_io_list write_waiting_list; /* write waiting queue */ - struct mei_io_list ctrl_wr_list; /* managed write IOCTL list */ - struct mei_io_list ctrl_rd_list; /* managed read IOCTL list */ - struct mei_io_list amthi_cmd_list; /* amthi list for cmd waiting */ - - /* driver managed amthi list for reading completed amthi cmd data */ - struct mei_io_list amthi_read_complete_list; + /* array of pointers to aio lists */ + struct mei_cl_cb read_list; /* driver read queue */ + struct mei_cl_cb write_list; /* driver write queue */ + struct mei_cl_cb write_waiting_list; /* write waiting queue */ + struct mei_cl_cb ctrl_wr_list; /* managed write IOCTL list */ + struct mei_cl_cb ctrl_rd_list; /* managed read IOCTL list */ + /* * list of files */ @@ -235,11 +245,13 @@ struct mei_device { u16 init_clients_timer; bool need_reset; - u32 extra_write_index; unsigned char rd_msg_buf[MEI_RD_MSG_BUF_SIZE]; /* control messages */ - u32 wr_msg_buf[128]; /* used for control messages */ - u32 ext_msg_buf[8]; /* for control responses */ u32 rd_msg_hdr; + u32 wr_msg_buf[128]; /* used for control messages */ + struct { + struct mei_msg_hdr hdr; + unsigned char data[4]; /* All HBM messages are 4 bytes */ + } wr_ext_msg; /* for control responses */ struct hbm_version version; @@ -253,12 +265,15 @@ struct mei_device { struct mei_cl wd_cl; enum mei_wd_states wd_state; - bool wd_interface_reg; bool wd_pending; u16 wd_timeout; unsigned char wd_data[MEI_WD_START_MSG_SIZE]; + /* 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; struct mei_cl iamthif_cl; struct mei_cl_cb *iamthif_current_cb; @@ -272,8 +287,15 @@ struct mei_device { bool iamthif_flow_control_pending; bool iamthif_ioctl; bool iamthif_canceled; + + struct work_struct init_work; }; +static inline unsigned long mei_secs_to_jiffies(unsigned long sec) +{ + return msecs_to_jiffies(sec * MSEC_PER_SEC); +} + /* * mei init function prototypes @@ -284,21 +306,34 @@ int mei_hw_init(struct mei_device *dev); int mei_task_initialize_clients(void *data); int mei_initialize_clients(struct mei_device *dev); int mei_disconnect_host_client(struct mei_device *dev, struct mei_cl *cl); -void mei_remove_client_from_file_list(struct mei_device *dev, u8 host_client_id); -void mei_host_init_iamthif(struct mei_device *dev); void mei_allocate_me_clients_storage(struct mei_device *dev); -int mei_me_cl_update_filext(struct mei_device *dev, struct mei_cl *cl, +int mei_me_cl_link(struct mei_device *dev, struct mei_cl *cl, const uuid_le *cguid, u8 host_client_id); +void mei_me_cl_unlink(struct mei_device *dev, struct mei_cl *cl); int mei_me_cl_by_uuid(const struct mei_device *dev, const uuid_le *cuuid); int mei_me_cl_by_id(struct mei_device *dev, u8 client_id); /* - * MEI IO List Functions + * MEI IO Functions + */ +struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, struct file *fp); +void mei_io_cb_free(struct mei_cl_cb *priv_cb); +int mei_io_cb_alloc_req_buf(struct mei_cl_cb *cb, size_t length); +int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length); + + +/** + * mei_io_list_init - Sets up a queue list. + * + * @list: An instance cl callback structure */ -void mei_io_list_init(struct mei_io_list *list); -void mei_io_list_flush(struct mei_io_list *list, struct mei_cl *cl); +static inline void mei_io_list_init(struct mei_cl_cb *list) +{ + INIT_LIST_HEAD(&list->list); +} +void mei_io_list_flush(struct mei_cl_cb *list, struct mei_cl *cl); /* * MEI ME Client Functions @@ -330,7 +365,8 @@ static inline bool mei_cl_cmp_id(const struct mei_cl *cl1, */ void mei_host_start_message(struct mei_device *dev); void mei_host_enum_clients_message(struct mei_device *dev); -int mei_host_client_properties(struct mei_device *dev); +int mei_host_client_enumerate(struct mei_device *dev); +void mei_host_client_init(struct work_struct *work); /* * MEI interrupt functions prototype @@ -347,18 +383,40 @@ int mei_ioctl_connect_client(struct file *file, int mei_start_read(struct mei_device *dev, struct mei_cl *cl); -int amthi_write(struct mei_device *dev, struct mei_cl_cb *priv_cb); -int amthi_read(struct mei_device *dev, struct file *file, - char __user *ubuf, size_t length, loff_t *offset); +/* + * AMTHIF - AMT Host Interface Functions + */ +void mei_amthif_reset_params(struct mei_device *dev); + +void mei_amthif_host_init(struct mei_device *dev); + +int mei_amthif_write(struct mei_device *dev, struct mei_cl_cb *priv_cb); -struct mei_cl_cb *find_amthi_read_list_entry(struct mei_device *dev, +int mei_amthif_read(struct mei_device *dev, struct file *file, + char __user *ubuf, size_t length, loff_t *offset); + +unsigned int mei_amthif_poll(struct mei_device *dev, + struct file *file, poll_table *wait); + +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_run_next_iamthif_cmd(struct mei_device *dev); +void mei_amthif_run_next_cmd(struct mei_device *dev); + -void mei_free_cb_private(struct mei_cl_cb *priv_cb); +int mei_amthif_read_message(struct mei_cl_cb *complete_list, + struct mei_device *dev, struct mei_msg_hdr *mei_hdr); +int mei_amthif_irq_write_complete(struct mei_device *dev, s32 *slots, + 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_message(struct mei_cl_cb *complete_list, + struct mei_device *dev, struct mei_msg_hdr *mei_hdr); +int mei_amthif_irq_read(struct mei_device *dev, s32 *slots); /* * Register Access Function @@ -437,4 +495,15 @@ void mei_csr_clear_his(struct mei_device *dev); void mei_enable_interrupts(struct mei_device *dev); void mei_disable_interrupts(struct mei_device *dev); +static inline struct mei_msg_hdr *mei_hbm_hdr(u32 *buf, size_t length) +{ + struct mei_msg_hdr *hdr = (struct mei_msg_hdr *)buf; + hdr->host_addr = 0; + hdr->me_addr = 0; + hdr->length = length; + hdr->msg_complete = 1; + hdr->reserved = 0; + return hdr; +} + #endif |