diff options
Diffstat (limited to 'drivers/misc/mei/mei_dev.h')
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 78 |
1 files changed, 44 insertions, 34 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index d61c4ddfc80c..adb35fb9281c 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -25,18 +25,20 @@ /* * watch dog definition */ -#define MEI_WATCHDOG_DATA_SIZE 16 -#define MEI_START_WD_DATA_SIZE 20 -#define MEI_WD_PARAMS_SIZE 4 +#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)) -/* - * MEI PCI Device object - */ -extern struct pci_dev *mei_device; - /* * AMTHI Client UUID @@ -54,19 +56,21 @@ extern const uuid_le mei_wd_guid; extern const u8 mei_wd_state_independence_msg[3][4]; /* + * Number of Maximum MEI Clients + */ +#define MEI_CLIENTS_MAX 256 + +/* * Number of File descriptors/handles * that can be opened to the driver. * - * Limit to 253: 255 Total Clients + * Limit to 253: 256 Total Clients + * minus internal client for MEI Bus Messags * minus internal client for AMTHI * minus internal client for Watchdog */ -#define MEI_MAX_OPEN_HANDLE_COUNT 253 +#define MEI_MAX_OPEN_HANDLE_COUNT (MEI_CLIENTS_MAX - 3) -/* - * Number of Maximum MEI Clients - */ -#define MEI_CLIENTS_MAX 255 /* File state */ enum file_state { @@ -78,17 +82,19 @@ enum file_state { }; /* MEI device states */ -enum mei_states { - MEI_INITIALIZING = 0, - MEI_INIT_CLIENTS, - MEI_ENABLED, - MEI_RESETING, - MEI_DISABLED, - MEI_RECOVERING_FROM_RESET, - MEI_POWER_DOWN, - MEI_POWER_UP +enum mei_dev_state { + MEI_DEV_INITIALIZING = 0, + MEI_DEV_INIT_CLIENTS, + MEI_DEV_ENABLED, + MEI_DEV_RESETING, + MEI_DEV_DISABLED, + MEI_DEV_RECOVERING_FROM_RESET, + MEI_DEV_POWER_DOWN, + MEI_DEV_POWER_UP }; +const char *mei_dev_state_str(int state); + /* init clients states*/ enum mei_init_clients_states { MEI_START_MESSAGE = 0, @@ -113,6 +119,12 @@ enum mei_file_transaction_states { MEI_READ_COMPLETE }; +enum mei_wd_states { + MEI_WD_IDLE, + MEI_WD_RUNNING, + MEI_WD_STOPPING, +}; + /* MEI CB */ enum mei_cb_major_types { MEI_READ = 0, @@ -128,7 +140,7 @@ enum mei_cb_major_types { struct mei_message_data { u32 size; unsigned char *data; -} __packed; +}; struct mei_cl_cb { @@ -218,10 +230,9 @@ struct mei_device { /* * mei device states */ - enum mei_states mei_state; + enum mei_dev_state dev_state; enum mei_init_clients_states init_clients_state; u16 init_clients_timer; - bool stop; bool need_reset; u32 extra_write_index; @@ -241,12 +252,11 @@ struct mei_device { bool mei_host_buffer_is_empty; struct mei_cl wd_cl; + enum mei_wd_states wd_state; bool wd_interface_reg; bool wd_pending; - bool wd_stopped; - bool wd_bypass; /* if false, don't refresh watchdog ME client */ - u16 wd_timeout; /* seconds ((wd_data[1] << 8) + wd_data[0]) */ - unsigned char wd_data[MEI_START_WD_DATA_SIZE]; + u16 wd_timeout; + unsigned char wd_data[MEI_WD_START_MSG_SIZE]; struct file *iamthif_file_object; @@ -279,9 +289,10 @@ void mei_host_init_iamthif(struct mei_device *dev); void mei_allocate_me_clients_storage(struct mei_device *dev); -u8 mei_find_me_client_update_filext(struct mei_device *dev, - struct mei_cl *priv, - const uuid_le *cguid, u8 client_id); +int mei_me_cl_update_filext(struct mei_device *dev, struct mei_cl *cl, + const uuid_le *cguid, u8 host_client_id); +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 @@ -348,7 +359,6 @@ void mei_run_next_iamthif_cmd(struct mei_device *dev); void mei_free_cb_private(struct mei_cl_cb *priv_cb); -int mei_find_me_client_index(const struct mei_device *dev, uuid_le cuuid); /* * Register Access Function |