diff options
Diffstat (limited to 'sys/dev/usb/usb_hub.h')
| -rw-r--r-- | sys/dev/usb/usb_hub.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/sys/dev/usb/usb_hub.h b/sys/dev/usb/usb_hub.h new file mode 100644 index 000000000000..87d85b357722 --- /dev/null +++ b/sys/dev/usb/usb_hub.h @@ -0,0 +1,80 @@ +/* $FreeBSD$ */ +/*- + * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _USB2_HUB_H_ +#define _USB2_HUB_H_ + +/* + * The following structure defines an USB port. + */ +struct usb2_port { + uint8_t restartcnt; +#define USB_RESTART_MAX 5 + uint8_t device_index; /* zero means not valid */ + uint8_t usb2_mode:1; /* current USB mode */ + uint8_t unused:7; +}; + +/* + * The following structure defines how many bytes are + * left in an 1ms USB time slot. + */ +struct usb2_fs_isoc_schedule { + uint16_t total_bytes; + uint8_t frame_bytes; + uint8_t frame_slot; +}; + +/* + * The following structure defines an USB HUB. + */ +struct usb2_hub { + struct usb2_fs_isoc_schedule fs_isoc_schedule[USB_ISOC_TIME_MAX]; + struct usb2_device *hubudev; /* the HUB device */ + usb2_error_t (*explore) (struct usb2_device *hub); + void *hubsoftc; + uint32_t uframe_usage[USB_HS_MICRO_FRAMES_MAX]; + uint16_t portpower; /* mA per USB port */ + uint8_t isoc_last_time; + uint8_t nports; + struct usb2_port ports[0]; +}; + +/* function prototypes */ + +uint8_t usb2_intr_schedule_adjust(struct usb2_device *udev, int16_t len, + uint8_t slot); +void usb2_fs_isoc_schedule_init_all(struct usb2_fs_isoc_schedule *fss); +void usb2_bus_port_set_device(struct usb2_bus *bus, struct usb2_port *up, + struct usb2_device *udev, uint8_t device_index); +struct usb2_device *usb2_bus_port_get_device(struct usb2_bus *bus, + struct usb2_port *up); +void usb2_needs_explore(struct usb2_bus *bus, uint8_t do_probe); +void usb2_needs_explore_all(void); +void usb2_bus_power_update(struct usb2_bus *bus); +void usb2_bus_powerd(struct usb2_bus *bus); + +#endif /* _USB2_HUB_H_ */ |