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usbdivar.h revision 1.17
      1 /*	$NetBSD: usbdivar.h,v 1.17 1999/01/10 19:13:16 augustss Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Lennart Augustsson (augustss (at) carlstedt.se) at
      9  * Carlstedt Research & Technology.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *        This product includes software developed by the NetBSD
     22  *        Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 struct usbd_request;
     41 struct usbd_pipe;
     42 
     43 struct usbd_endpoint {
     44 	usb_endpoint_descriptor_t *edesc;
     45 	usbd_endpoint_state	state;
     46 	int			refcnt;
     47 	int			toggle;	/* XXX */
     48 };
     49 
     50 typedef void (*usbd_xfercb)__P((usbd_request_handle req));
     51 
     52 struct usbd_methods {
     53 	usbd_status	      (*transfer)__P((usbd_request_handle reqh));
     54 	usbd_status	      (*start)__P((usbd_request_handle reqh));
     55 	void		      (*abort)__P((usbd_request_handle reqh));
     56 	void		      (*close)__P((usbd_pipe_handle pipe));
     57 	usbd_status	      (*isobuf)__P((usbd_pipe_handle pipe,
     58 					    u_int32_t bufsize,u_int32_t nbuf));
     59 };
     60 
     61 struct usbd_port {
     62 	usb_port_status_t	status;
     63 	u_int16_t		power;	/* mA of current on port */
     64 	u_int8_t		portno;
     65 	u_int8_t		restartcnt;
     66 #define USBD_RESTART_MAX 5
     67 	struct usbd_device     *device;
     68 	struct usbd_device     *parent;	/* The ports hub */
     69 };
     70 
     71 struct usbd_hub {
     72 	usbd_status	      (*explore)__P((usbd_device_handle hub));
     73 	void		       *hubsoftc;
     74 	usb_hub_descriptor_t	hubdesc;
     75 	struct usbd_port        ports[1];
     76 };
     77 
     78 struct usb_softc;
     79 
     80 /*****/
     81 
     82 struct usbd_bus {
     83 	/* Filled by HC driver */
     84 	bdevice			bdev; /* base device, host adapter */
     85 	usbd_status	      (*open_pipe)__P((struct usbd_pipe *pipe));
     86 	u_int32_t		pipe_size; /* size of a pipe struct */
     87 	void		      (*do_poll)__P((struct usbd_bus *));
     88 	/* Filled by usb driver */
     89 	struct usbd_device     *root_hub;
     90 	usbd_device_handle	devices[USB_MAX_DEVICES];
     91 	char			needs_explore;/* a hub a signalled a change */
     92 	char			use_polling;
     93 	struct usb_softc       *usbctl;
     94 	struct usb_device_stats	stats;
     95 };
     96 
     97 struct usbd_device {
     98 	struct usbd_bus	       *bus;
     99 	usbd_device_state	state;
    100 	struct usbd_pipe       *default_pipe;
    101 	u_int8_t		address;
    102 	u_int8_t		depth;
    103 	u_int8_t		lowspeed;
    104 	u_int16_t		power;
    105 	u_int8_t		self_powered;
    106 	int			config;
    107 	int			langid;	/* language to use for strings */
    108 #define USBD_NOLANG (-1)
    109 	struct usbd_port       *powersrc;
    110 	struct usbd_endpoint	def_ep;	/* for pipe 0 */
    111 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    112 	struct usbd_interface  *ifaces;
    113 	usb_device_descriptor_t ddesc;
    114 	usb_config_descriptor_t *cdesc;	/* full config descr */
    115 	struct usbd_quirks     *quirks;
    116 	struct usbd_hub	       *hub; /* only if this is a hub */
    117 	void		       *softc;	/* device softc if attached */
    118 };
    119 
    120 struct usbd_interface {
    121 	struct usbd_device     *device;
    122 	usbd_interface_state	state;
    123 	usb_interface_descriptor_t *idesc;
    124 	int			index;
    125 	int			altindex;
    126 	struct usbd_endpoint   *endpoints;
    127 	void		       *priv;
    128 	LIST_HEAD(, usbd_pipe)	pipes;
    129 };
    130 
    131 struct usbd_pipe {
    132 	struct usbd_interface  *iface;
    133 	struct usbd_device     *device;
    134 	struct usbd_endpoint   *endpoint;
    135 	usbd_pipe_state		state;
    136 	int32_t			refcnt;
    137 	char			running;
    138 	SIMPLEQ_HEAD(, usbd_request) queue;
    139 	LIST_ENTRY(usbd_pipe)	next;
    140 
    141 	void		      (*disco) __P((void *));
    142 	void		       *discoarg;
    143 
    144 	usbd_request_handle     intrreqh; /* used for repeating requests */
    145 
    146 	/* Filled by HC driver. */
    147 	struct usbd_methods    *methods;
    148 };
    149 
    150 struct usbd_request {
    151 	struct usbd_pipe       *pipe;
    152 	void		       *priv;
    153 	void		       *buffer;
    154 	u_int32_t		length;
    155 	u_int32_t		actlen;
    156 	u_int16_t		flags;
    157 	u_int32_t		timeout;
    158 	usbd_status		status;
    159 	usbd_callback		callback;
    160 	usbd_xfercb		xfercb;
    161 	u_int32_t		retries;
    162 	char			done;
    163 
    164 	usb_device_request_t	request;
    165 	u_int8_t		isreq;
    166 
    167 	SIMPLEQ_ENTRY(usbd_request) next;
    168 
    169 	void		       *hcpriv; /* XXX private use by the HC driver */
    170 
    171 #if defined(__FreeBSD__)
    172 	struct callout_handle  timo_handle;
    173 #endif
    174 };
    175 
    176 void usbd_init __P((void));
    177 
    178 /* Routines from usb_subr.c */
    179 int		usbctlprint __P((void *, const char *));
    180 void		usb_delay_ms __P((usbd_bus_handle, u_int));
    181 void		usbd_devinfo_vp __P((usbd_device_handle, char *, char *));
    182 usbd_status	usbd_reset_port __P((usbd_device_handle dev,
    183 				     int port, usb_port_status_t *ps));
    184 usbd_status	usbd_setup_pipe __P((usbd_device_handle dev,
    185 				     usbd_interface_handle iface,
    186 				     struct usbd_endpoint *,
    187 				     usbd_pipe_handle *pipe));
    188 usbd_status	usbd_new_device __P((bdevice *parent,
    189 				     usbd_bus_handle bus, int depth,
    190 				     int lowspeed, int port,
    191 				     struct usbd_port *));
    192 void		usbd_remove_device __P((usbd_device_handle,
    193 					struct usbd_port *));
    194 int		usbd_printBCD __P((char *cp, int bcd));
    195 usbd_status	usb_insert_transfer __P((usbd_request_handle reqh));
    196 void		usb_start_next __P((usbd_pipe_handle pipe));
    197 usbd_status	usbd_fill_iface_data __P((usbd_device_handle dev,
    198 					  int i, int a));
    199 
    200 /* Routines from usb.c */
    201 int		usb_bus_count __P((void));
    202 void		usb_needs_explore __P((usbd_bus_handle));
    203 #if 0
    204 usbd_status	usb_get_bus_handle __P((int, usbd_bus_handle *));
    205 #endif
    206 
    207 /* Locator stuff. */
    208 
    209 #if defined(__NetBSD__)
    210 #include "locators.h"
    211 #elif defined(__FreeBSD__)
    212 /* XXX these values are used to statically bind some elements in the USB tree
    213  * to specific driver instances. This should be somehow emulated in FreeBSD
    214  * but can be done later on.
    215  * The values are copied from the files.usb file in the NetBSD sources.
    216  */
    217 #define UHUBCF_PORT_DEFAULT -1
    218 #define UHUBCF_CONFIGURATION_DEFAULT -1
    219 #define UHUBCF_INTERFACE_DEFAULT -1
    220 #endif
    221 
    222 #define	uhubcf_port		cf_loc[UHUBCF_PORT]
    223 #define	uhubcf_configuration	cf_loc[UHUBCF_CONFIGURATION]
    224 #define	uhubcf_interface	cf_loc[UHUBCF_INTERFACE]
    225 #define	UHUB_UNK_PORT		UHUBCF_PORT_DEFAULT /* wildcarded 'port' */
    226 #define	UHUB_UNK_CONFIGURATION	UHUBCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    227 #define	UHUB_UNK_INTERFACE	UHUBCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    228 
    229