1501c2bf3e
ready for testing. Also the documentation is far from complete (it's in it's early phases). Unfortunately I don't have enough experience in hardware programming to prototype it first, so I'll be testing the things that I design in the document. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4275 a95241bf-73f2-0310-859d-f6bbb57e9c96
190 lines
6.3 KiB
C
190 lines
6.3 KiB
C
/*
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** USB.h - Version 2 USB Device Driver API
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**
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** Copyright 1999, Be Incorporated. All Rights Reserved.
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**
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*/
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#ifndef _USB_H
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#define _USB_H
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#include <KernelExport.h>
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#include <bus_manager.h>
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#include <USB_spec.h>
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#include <USB_rle.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct usb_module_info usb_module_info;
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/* these are opaque handles to internal stack objects */
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typedef struct usb_device usb_device;
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typedef struct usb_interface usb_interface;
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typedef struct usb_pipe usb_pipe;
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typedef struct usb_endpoint_info usb_endpoint_info;
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typedef struct usb_interface_info usb_interface_info;
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typedef struct usb_interface_list usb_interface_list;
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typedef struct usb_configuration_info usb_configuration_info;
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typedef struct usb_notify_hooks {
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status_t (*device_added)(const usb_device *device, void **cookie);
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status_t (*device_removed)(void *cookie);
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} usb_notify_hooks;
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typedef struct usb_support_descriptor {
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uint8 dev_class;
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uint8 dev_subclass;
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uint8 dev_protocol;
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uint16 vendor;
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uint16 product;
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} usb_support_descriptor;
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/* ie, I support any hub device:
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** usb_support_descriptor hub_devs = { 9, 0, 0, 0, 0 };
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*/
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struct usb_endpoint_info {
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usb_endpoint_descriptor *descr; /* descriptor and handle */
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usb_pipe *handle; /* of this endpoint/pipe */
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};
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struct usb_interface_info {
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usb_interface_descriptor *descr; /* descriptor and handle */
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usb_interface *handle; /* of this interface */
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size_t endpoint_count; /* count and list of endpoints */
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usb_endpoint_info *endpoint; /* in this interface */
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size_t generic_count; /* unparsed descriptors in this */
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usb_descriptor **generic; /* interface */
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};
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struct usb_interface_list {
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size_t alt_count; /* count and list of alternate */
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usb_interface_info *alt; /* interfaces available */
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usb_interface_info *active; /* currently active alternate */
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};
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struct usb_configuration_info {
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usb_configuration_descriptor *descr; /* descriptor of this config */
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size_t interface_count; /* interfaces in this config */
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usb_interface_list *interface;
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};
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typedef void (*usb_callback_func)(void *cookie, uint32 status,
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void *data, uint32 actual_len);
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struct usb_module_info {
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bus_manager_info binfo;
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/* inform the bus manager of our intent to support a set of devices */
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status_t (*register_driver)(const char *driver_name,
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const usb_support_descriptor *descriptors,
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size_t count,
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const char *optional_republish_driver_name);
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/* request notification from the bus manager for add/remove of devices we
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support */
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status_t (*install_notify)(const char *driver_name,
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const usb_notify_hooks *hooks);
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status_t (*uninstall_notify)(const char *driver_name);
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/* get the device descriptor */
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const usb_device_descriptor *(*get_device_descriptor)(const usb_device *dev);
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/* get the nth supported configuration */
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const usb_configuration_info *(*get_nth_configuration)(const usb_device *dev, uint index);
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/* get the active configuration */
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const usb_configuration_info *(*get_configuration)(const usb_device *dev);
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/* set the active configuration */
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status_t (*set_configuration)(const usb_device *dev,
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const usb_configuration_info *configuration);
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status_t (*set_alt_interface)(const usb_device *dev,
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const usb_interface_info *ifc);
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/* standard device requests -- convenience functions */
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/* obj may be a usb_device*, usb_pipe*, or usb_interface* */
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status_t (*set_feature)(const void *object, uint16 selector);
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status_t (*clear_feature)(const void *object, uint16 selector);
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status_t (*get_status)(const void *object, uint16 *status);
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status_t (*get_descriptor)(const usb_device *d,
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uint8 type, uint8 index, uint16 lang,
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void *data, size_t len, size_t *actual_len);
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/* generic device request function */
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status_t (*send_request)(const usb_device *d,
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uint8 request_type, uint8 request,
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uint16 value, uint16 index, uint16 length,
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void *data, size_t data_len, size_t *actual_len);
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/* async request queueing */
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status_t (*queue_interrupt)(const usb_pipe *handle,
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void *data, size_t len,
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usb_callback_func notify, void *cookie);
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status_t (*queue_bulk)(const usb_pipe *handle,
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void *data, size_t len,
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usb_callback_func notify, void *cookie);
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status_t (*queue_isochronous)(const usb_pipe *handle,
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void *data, size_t len,
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rlea* rle_array, uint16 buffer_duration_ms,
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usb_callback_func notify, void *cookie);
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status_t (*queue_request)(const usb_device *d,
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uint8 request_type, uint8 request,
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uint16 value, uint16 index, uint16 length,
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void *data, size_t data_len,
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usb_callback_func notify, void *cookie);
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status_t (*set_pipe_policy)(const usb_pipe *handle, uint8 max_num_queued_packets,
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uint16 max_buffer_duration_ms, uint16 sample_size);
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/* cancel pending async requests to an endpoint */
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status_t (*cancel_queued_transfers)(const usb_pipe *handle);
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/* tuning, timeouts, etc */
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status_t (*usb_ioctl)(uint32 opcode, void* buf, size_t buf_size);
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};
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/* status code for usb callback functions */
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#define B_USB_STATUS_SUCCESS 0x0000
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#define B_USB_STATUS_DEVICE_CRC_ERROR 0x0002
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#define B_USB_STATUS_DEVICE_TIMEOUT 0x0004
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#define B_USB_STATUS_DEVICE_STALLED 0x0008
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#define B_USB_STATUS_IRP_CANCELLED_BY_REQUEST 0x0010
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#define B_USB_STATUS_DRIVER_INTERNAL_ERROR 0x0020
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#define B_USB_STATUS_ADAPTER_HARDWARE_ERROR 0x0040
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#define B_USB_STATUS_ISOCH_IRP_ABORTED 0x0080
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/* result codes for usb bus manager functions */
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#define B_USBD_SUCCESS 0
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#define B_USBD_BAD_HANDLE 1
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#define B_USBD_BAD_ARGS 2
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#define B_USBD_NO_DATA 3
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#define B_USBD_DEVICE_FAILURE 4
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#define B_USBD_COMMAND_FAILED 5
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#define B_USBD_PIPE_NOT_CONFIGURED 6
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#define B_USBD_DEVICE_ERROR 7
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#define B_USBD_PIPE_ERROR 8
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#define B_USBD_NO_MEMORY 9
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#define B_USB_MODULE_NAME "bus_managers/usb/v2"
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#ifdef __cplusplus
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}
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#endif
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#endif
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