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71ce789115
Split the device registration into allocation and device struct initialization, device setup, and the final device registration. This why it is possible to run fixups and quirks during the setup stage on an initialized device. Each fixup routine effects do_match flag. If the flag is set to false at the end the device won't be registered on the bus. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
#ifndef _LINUX_MEI_CL_BUS_H
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#define _LINUX_MEI_CL_BUS_H
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#include <linux/device.h>
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#include <linux/uuid.h>
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#include <linux/mod_devicetable.h>
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struct mei_cl_device;
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struct mei_device;
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typedef void (*mei_cl_event_cb_t)(struct mei_cl_device *device,
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u32 events, void *context);
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/**
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* struct mei_cl_device - MEI device handle
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* An mei_cl_device pointer is returned from mei_add_device()
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* and links MEI bus clients to their actual ME host client pointer.
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* Drivers for MEI devices will get an mei_cl_device pointer
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* when being probed and shall use it for doing ME bus I/O.
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*
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* @bus_list: device on the bus list
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* @bus: parent mei device
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* @dev: linux driver model device pointer
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* @me_cl: me client
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* @cl: mei client
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* @name: device name
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* @event_work: async work to execute event callback
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* @event_cb: Drivers register this callback to get asynchronous ME
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* events (e.g. Rx buffer pending) notifications.
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* @event_context: event callback run context
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* @events: Events bitmask sent to the driver.
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*
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* @do_match: wheather device can be matched with a driver
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* @is_added: device is already scanned
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* @priv_data: client private data
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*/
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struct mei_cl_device {
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struct list_head bus_list;
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struct mei_device *bus;
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struct device dev;
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struct mei_me_client *me_cl;
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struct mei_cl *cl;
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char name[MEI_CL_NAME_SIZE];
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struct work_struct event_work;
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mei_cl_event_cb_t event_cb;
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void *event_context;
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unsigned long events;
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unsigned int do_match:1;
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unsigned int is_added:1;
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void *priv_data;
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};
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struct mei_cl_driver {
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struct device_driver driver;
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const char *name;
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const struct mei_cl_device_id *id_table;
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int (*probe)(struct mei_cl_device *dev,
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const struct mei_cl_device_id *id);
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int (*remove)(struct mei_cl_device *dev);
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};
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int __mei_cl_driver_register(struct mei_cl_driver *driver,
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struct module *owner);
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#define mei_cl_driver_register(driver) \
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__mei_cl_driver_register(driver, THIS_MODULE)
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void mei_cl_driver_unregister(struct mei_cl_driver *driver);
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ssize_t mei_cl_send(struct mei_cl_device *device, u8 *buf, size_t length);
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ssize_t mei_cl_recv(struct mei_cl_device *device, u8 *buf, size_t length);
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int mei_cl_register_event_cb(struct mei_cl_device *device,
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mei_cl_event_cb_t read_cb, void *context);
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#define MEI_CL_EVENT_RX 0
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#define MEI_CL_EVENT_TX 1
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void *mei_cl_get_drvdata(const struct mei_cl_device *device);
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void mei_cl_set_drvdata(struct mei_cl_device *device, void *data);
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int mei_cl_enable_device(struct mei_cl_device *device);
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int mei_cl_disable_device(struct mei_cl_device *device);
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#endif /* _LINUX_MEI_CL_BUS_H */
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