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freebsd-nq/sys/dev/usb/usbdi.h
Ian Dowse 9145721957 Use a different task queue for host controller and peripheral driver 
tasks. Since the host controllers rely on tasks to process transfer
timeouts, if a synchronous transfer from a driver was invoked from
a task and timed out, it would never complete because the single
task thread was stuck performing the synchronous transfer so couldn't
process the timeout.

This affected the axe, udav and ural drivers.

Problem hardware provided by:	guido
2006-10-19 01:15:58 +00:00

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/* $NetBSD: usbdi.h,v 1.64 2004/10/23 13:26:34 augustss Exp $ */
/* $FreeBSD$ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _USBDI_H_
#define _USBDI_H_
typedef struct usbd_bus *usbd_bus_handle;
typedef struct usbd_device *usbd_device_handle;
typedef struct usbd_interface *usbd_interface_handle;
typedef struct usbd_pipe *usbd_pipe_handle;
typedef struct usbd_xfer *usbd_xfer_handle;
typedef void *usbd_private_handle;
typedef enum { /* keep in sync with usbd_status_msgs */
USBD_NORMAL_COMPLETION = 0, /* must be 0 */
USBD_IN_PROGRESS, /* 1 */
/* errors */
USBD_PENDING_REQUESTS, /* 2 */
USBD_NOT_STARTED, /* 3 */
USBD_INVAL, /* 4 */
USBD_NOMEM, /* 5 */
USBD_CANCELLED, /* 6 */
USBD_BAD_ADDRESS, /* 7 */
USBD_IN_USE, /* 8 */
USBD_NO_ADDR, /* 9 */
USBD_SET_ADDR_FAILED, /* 10 */
USBD_NO_POWER, /* 11 */
USBD_TOO_DEEP, /* 12 */
USBD_IOERROR, /* 13 */
USBD_NOT_CONFIGURED, /* 14 */
USBD_TIMEOUT, /* 15 */
USBD_SHORT_XFER, /* 16 */
USBD_STALLED, /* 17 */
USBD_INTERRUPTED, /* 18 */
USBD_ERROR_MAX /* must be last */
} usbd_status;
typedef void (*usbd_callback)(usbd_xfer_handle, usbd_private_handle,
usbd_status);
/* Open flags */
#define USBD_EXCLUSIVE_USE 0x01
/* Use default (specified by ep. desc.) interval on interrupt pipe */
#define USBD_DEFAULT_INTERVAL (-1)
/* Request flags */
#define USBD_NO_COPY 0x01 /* do not copy data to DMA buffer */
#define USBD_SYNCHRONOUS 0x02 /* wait for completion */
/* in usb.h #define USBD_SHORT_XFER_OK 0x04*/ /* allow short reads */
#define USBD_FORCE_SHORT_XFER 0x08 /* force last short packet on write */
#define USBD_NO_TIMEOUT 0
#define USBD_DEFAULT_TIMEOUT 5000 /* ms = 5 s */
usbd_status usbd_open_pipe(usbd_interface_handle, u_int8_t,
u_int8_t, usbd_pipe_handle *);
usbd_status usbd_close_pipe(usbd_pipe_handle);
usbd_status usbd_transfer(usbd_xfer_handle);
usbd_xfer_handle usbd_alloc_xfer(usbd_device_handle);
usbd_status usbd_free_xfer(usbd_xfer_handle);
void usbd_setup_xfer(usbd_xfer_handle, usbd_pipe_handle,
usbd_private_handle, void *,
u_int32_t, u_int16_t, u_int32_t,
usbd_callback);
void usbd_setup_default_xfer(usbd_xfer_handle, usbd_device_handle,
usbd_private_handle, u_int32_t,
usb_device_request_t *, void *,
u_int32_t, u_int16_t, usbd_callback);
void usbd_setup_isoc_xfer(usbd_xfer_handle, usbd_pipe_handle,
usbd_private_handle, u_int16_t *,
u_int32_t, u_int16_t, usbd_callback);
void usbd_get_xfer_status(usbd_xfer_handle, usbd_private_handle *,
void **, u_int32_t *, usbd_status *);
usb_endpoint_descriptor_t *usbd_interface2endpoint_descriptor
(usbd_interface_handle, u_int8_t);
usbd_status usbd_abort_pipe(usbd_pipe_handle);
usbd_status usbd_abort_default_pipe(usbd_device_handle);
usbd_status usbd_clear_endpoint_stall(usbd_pipe_handle);
usbd_status usbd_clear_endpoint_stall_async(usbd_pipe_handle);
void usbd_clear_endpoint_toggle(usbd_pipe_handle);
usbd_status usbd_endpoint_count(usbd_interface_handle, u_int8_t *);
usbd_status usbd_interface_count(usbd_device_handle, u_int8_t *);
void usbd_interface2device_handle(usbd_interface_handle,
usbd_device_handle *);
usbd_status usbd_device2interface_handle(usbd_device_handle,
u_int8_t, usbd_interface_handle *);
usbd_device_handle usbd_pipe2device_handle(usbd_pipe_handle);
void *usbd_alloc_buffer(usbd_xfer_handle, u_int32_t);
void usbd_free_buffer(usbd_xfer_handle);
void *usbd_get_buffer(usbd_xfer_handle);
usbd_status usbd_sync_transfer(usbd_xfer_handle);
usbd_status usbd_open_pipe_intr(usbd_interface_handle, u_int8_t,
u_int8_t, usbd_pipe_handle *,
usbd_private_handle, void *,
u_int32_t, usbd_callback, int);
usbd_status usbd_do_request(usbd_device_handle, usb_device_request_t *, void *);
usbd_status usbd_do_request_async(usbd_device_handle,
usb_device_request_t *, void *);
usbd_status usbd_do_request_flags(usbd_device_handle, usb_device_request_t *,
void *, u_int16_t, int*, u_int32_t);
usbd_status usbd_do_request_flags_pipe(usbd_device_handle, usbd_pipe_handle,
usb_device_request_t *, void *, u_int16_t, int *, u_int32_t);
usb_interface_descriptor_t *usbd_get_interface_descriptor
(usbd_interface_handle);
usb_config_descriptor_t *usbd_get_config_descriptor(usbd_device_handle);
usb_device_descriptor_t *usbd_get_device_descriptor(usbd_device_handle);
int usbd_get_speed(usbd_device_handle);
usbd_status usbd_set_interface(usbd_interface_handle, int);
int usbd_get_no_alts(usb_config_descriptor_t *, int);
usbd_status usbd_get_interface(usbd_interface_handle, u_int8_t *);
void usbd_fill_deviceinfo(usbd_device_handle, struct usb_device_info *, int);
int usbd_get_interface_altindex(usbd_interface_handle);
usb_interface_descriptor_t *usbd_find_idesc(usb_config_descriptor_t *,
int, int);
usb_endpoint_descriptor_t *usbd_find_edesc(usb_config_descriptor_t *,
int, int, int);
void usbd_dopoll(usbd_interface_handle);
void usbd_set_polling(usbd_device_handle, int);
const char *usbd_errstr(usbd_status);
void usbd_add_dev_event(int, usbd_device_handle);
void usbd_add_drv_event(int, usbd_device_handle, device_t);
void usbd_devinfo(usbd_device_handle, int, char *);
const struct usbd_quirks *usbd_get_quirks(usbd_device_handle);
usb_endpoint_descriptor_t *usbd_get_endpoint_descriptor
(usbd_interface_handle, u_int8_t);
usbd_status usbd_reload_device_desc(usbd_device_handle);
int usbd_ratecheck(struct timeval *last);
usbd_status usbd_get_string(usbd_device_handle dev, int si, char *buf);
/* An iterator for descriptors. */
typedef struct {
const uByte *cur;
const uByte *end;
} usbd_desc_iter_t;
void usb_desc_iter_init(usbd_device_handle dev, usbd_desc_iter_t *iter);
const usb_descriptor_t *usb_desc_iter_next(usbd_desc_iter_t *iter);
/*
* The usb_task structs form a queue of things to run in the USB event
* thread. Normally this is just device discovery when a connect/disconnect
* has been detected. But it may also be used by drivers that need to
* perform (short) tasks that must have a process context.
*/
struct usb_task {
TAILQ_ENTRY(usb_task) next;
void (*fun)(void *);
void *arg;
int queue;
};
#define USB_TASKQ_HC 0
#define USB_TASKQ_DRIVER 1
#define USB_NUM_TASKQS 2
#define USB_TASKQ_NAMES {"usbtask-hc", "usbtask-dr"}
void usb_add_task(usbd_device_handle, struct usb_task *, int queue);
void usb_rem_task(usbd_device_handle, struct usb_task *);
#define usb_init_task(t, f, a) ((t)->fun = (f), (t)->arg = (a), (t)->queue = -1)
struct usb_devno {
u_int16_t ud_vendor;
u_int16_t ud_product;
};
const struct usb_devno *usb_match_device(const struct usb_devno *,
u_int, u_int, u_int16_t, u_int16_t);
#define usb_lookup(tbl, vendor, product) \
usb_match_device((const struct usb_devno *)(tbl), sizeof (tbl) / sizeof ((tbl)[0]), sizeof ((tbl)[0]), (vendor), (product))
#define USB_PRODUCT_ANY 0xffff
/* NetBSD attachment information */
/* Attach data */
struct usb_attach_arg {
int port;
int configno;
int ifaceno;
int vendor;
int product;
int release;
int matchlvl;
usbd_device_handle device; /* current device */
usbd_interface_handle iface; /* current interface */
int usegeneric;
usbd_interface_handle *ifaces; /* all interfaces */
int nifaces; /* number of interfaces */
};
#if defined(__NetBSD__) || defined(__OpenBSD__)
/* Match codes. */
/* First five codes is for a whole device. */
#define UMATCH_VENDOR_PRODUCT_REV 14
#define UMATCH_VENDOR_PRODUCT 13
#define UMATCH_VENDOR_DEVCLASS_DEVPROTO 12
#define UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO 11
#define UMATCH_DEVCLASS_DEVSUBCLASS 10
/* Next six codes are for interfaces. */
#define UMATCH_VENDOR_PRODUCT_REV_CONF_IFACE 9
#define UMATCH_VENDOR_PRODUCT_CONF_IFACE 8
#define UMATCH_VENDOR_IFACESUBCLASS_IFACEPROTO 7
#define UMATCH_VENDOR_IFACESUBCLASS 6
#define UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO 5
#define UMATCH_IFACECLASS_IFACESUBCLASS 4
#define UMATCH_IFACECLASS 3
#define UMATCH_IFACECLASS_GENERIC 2
/* Generic driver */
#define UMATCH_GENERIC 1
/* No match */
#define UMATCH_NONE 0
#elif defined(__FreeBSD__)
/* FreeBSD needs values less than zero */
#define UMATCH_VENDOR_PRODUCT_REV (-10)
#define UMATCH_VENDOR_PRODUCT (-20)
#define UMATCH_VENDOR_DEVCLASS_DEVPROTO (-30)
#define UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO (-40)
#define UMATCH_DEVCLASS_DEVSUBCLASS (-50)
#define UMATCH_VENDOR_PRODUCT_REV_CONF_IFACE (-60)
#define UMATCH_VENDOR_PRODUCT_CONF_IFACE (-70)
#define UMATCH_VENDOR_IFACESUBCLASS_IFACEPROTO (-80)
#define UMATCH_VENDOR_IFACESUBCLASS (-90)
#define UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO (-100)
#define UMATCH_IFACECLASS_IFACESUBCLASS (-110)
#define UMATCH_IFACECLASS (-120)
#define UMATCH_IFACECLASS_GENERIC (-130)
#define UMATCH_GENERIC (-140)
#define UMATCH_NONE (ENXIO)
#endif
#define USBD_SHOW_DEVICE_CLASS 0x1
#define USBD_SHOW_INTERFACE_CLASS 0x2
#if defined(__FreeBSD__)
int usbd_driver_load(module_t mod, int what, void *arg);
static inline int
usb_get_port(device_t dev)
{
struct usb_attach_arg *uap = device_get_ivars(dev);
return (uap->port);
}
static inline struct usbd_interface *
usb_get_iface(device_t dev)
{
struct usb_attach_arg *uap = device_get_ivars(dev);
return (uap->iface);
}
#endif
/* XXX Perhaps USB should have its own levels? */
#ifdef USB_USE_SOFTINTR
#ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
#define splusb splsoftnet
#else
#define splusb splsoftclock
#endif /* __HAVE_GENERIC_SOFT_INTERRUPTS */
#else
#define splusb splbio
#endif /* USB_USE_SOFTINTR */
#define splhardusb splbio
#define IPL_USB IPL_BIO
#endif /* _USBDI_H_ */
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