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usbdivar.h revision 1.47
      1 /*	$NetBSD: usbdivar.h,v 1.47 2000/02/22 11:30:56 augustss Exp $	*/
      2 /*	$FreeBSD: src/sys/dev/usb/usbdivar.h,v 1.11 1999/11/17 22:33:51 n_hibma Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to The NetBSD Foundation
      9  * by Lennart Augustsson (augustss (at) carlstedt.se) at
     10  * Carlstedt Research & Technology.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. All advertising materials mentioning features or use of this software
     21  *    must display the following acknowledgement:
     22  *        This product includes software developed by the NetBSD
     23  *        Foundation, Inc. and its contributors.
     24  * 4. Neither the name of The NetBSD Foundation nor the names of its
     25  *    contributors may be used to endorse or promote products derived
     26  *    from this software without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     38  * POSSIBILITY OF SUCH DAMAGE.
     39  */
     40 
     41 /* From usb_mem.h */
     42 DECLARE_USB_DMA_T;
     43 
     44 struct usbd_xfer;
     45 struct usbd_pipe;
     46 
     47 struct usbd_endpoint {
     48 	usb_endpoint_descriptor_t *edesc;
     49 	int			refcnt;
     50 };
     51 
     52 struct usbd_bus_methods {
     53 	usbd_status	      (*open_pipe)__P((struct usbd_pipe *pipe));
     54 	void		      (*soft_intr)__P((struct usbd_bus *));
     55 	void		      (*do_poll)__P((struct usbd_bus *));
     56 	usbd_status	      (*allocm)__P((struct usbd_bus *, usb_dma_t *,
     57 					    u_int32_t bufsize));
     58 	void		      (*freem)__P((struct usbd_bus *, usb_dma_t *));
     59 	struct usbd_xfer *    (*allocx)__P((struct usbd_bus *));
     60 	void		      (*freex)__P((struct usbd_bus *,
     61 					   struct usbd_xfer *));
     62 };
     63 
     64 struct usbd_pipe_methods {
     65 	usbd_status	      (*transfer)__P((usbd_xfer_handle xfer));
     66 	usbd_status	      (*start)__P((usbd_xfer_handle xfer));
     67 	void		      (*abort)__P((usbd_xfer_handle xfer));
     68 	void		      (*close)__P((usbd_pipe_handle pipe));
     69 	void		      (*cleartoggle)__P((usbd_pipe_handle pipe));
     70 	void		      (*done)__P((usbd_xfer_handle xfer));
     71 };
     72 
     73 struct usbd_port {
     74 	usb_port_status_t	status;
     75 	u_int16_t		power;	/* mA of current on port */
     76 	u_int8_t		portno;
     77 	u_int8_t		restartcnt;
     78 #define USBD_RESTART_MAX 5
     79 	struct usbd_device     *device;
     80 	struct usbd_device     *parent;	/* The ports hub */
     81 };
     82 
     83 struct usbd_hub {
     84 	usbd_status	      (*explore)__P((usbd_device_handle hub));
     85 	void		       *hubsoftc;
     86 	usb_hub_descriptor_t	hubdesc;
     87 	struct usbd_port        ports[1];
     88 };
     89 
     90 struct usb_softc;
     91 
     92 /*****/
     93 
     94 struct usbd_bus {
     95 	/* Filled by HC driver */
     96 	USBBASEDEVICE		bdev; /* base device, host adapter */
     97 	struct usbd_bus_methods	*methods;
     98 	u_int32_t		pipe_size; /* size of a pipe struct */
     99 	/* Filled by usb driver */
    100 	struct usbd_device     *root_hub;
    101 	usbd_device_handle	devices[USB_MAX_DEVICES];
    102 	char			needs_explore;/* a hub a signalled a change */
    103 	char			use_polling;
    104 	struct usb_softc       *usbctl;
    105 	struct usb_device_stats	stats;
    106 	int 			intr_context;
    107 	u_int			no_intrs;
    108 	int			usbrev;	/* USB revision */
    109 #define USBREV_UNKNOWN	0
    110 #define USBREV_PRE_1_0	1
    111 #define USBREV_1_0	2
    112 #define USBREV_1_1	3
    113 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1" }
    114 
    115 #if defined(__NetBSD__) || defined(__OpenBSD__)
    116 	bus_dma_tag_t		dmatag;	/* DMA tag */
    117 #endif
    118 };
    119 
    120 struct usbd_device {
    121 	struct usbd_bus	       *bus;           /* our controller */
    122 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    123 	u_int8_t		address;       /* device addess */
    124 	u_int8_t		config;	       /* current configuration # */
    125 	u_int8_t		depth;         /* distance from root hub */
    126 	u_int8_t		lowspeed;      /* lowspeed flag */
    127 	u_int8_t		self_powered;  /* flag for self powered */
    128 	u_int16_t		power;         /* mA the device uses */
    129 	int16_t			langid;	       /* language for strings */
    130 #define USBD_NOLANG (-1)
    131 	usb_event_cookie_t	cookie;	       /* unique connection id */
    132 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    133 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    134 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    135 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    136 	usb_device_descriptor_t ddesc;         /* device descriptor */
    137 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    138 	struct usbd_quirks     *quirks;        /* device quirks, always set */
    139 	struct usbd_hub	       *hub;           /* only if this is a hub */
    140 	device_ptr_t	       *subdevs;       /* sub-devices, 0 terminated */
    141 };
    142 
    143 struct usbd_interface {
    144 	struct usbd_device     *device;
    145 	usb_interface_descriptor_t *idesc;
    146 	int			index;
    147 	int			altindex;
    148 	struct usbd_endpoint   *endpoints;
    149 	void		       *priv;
    150 	LIST_HEAD(, usbd_pipe)	pipes;
    151 };
    152 
    153 struct usbd_pipe {
    154 	struct usbd_interface  *iface;
    155 	struct usbd_device     *device;
    156 	struct usbd_endpoint   *endpoint;
    157 	int			refcnt;
    158 	char			running;
    159 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    160 	LIST_ENTRY(usbd_pipe)	next;
    161 
    162 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
    163 	char			repeat;
    164 	int			interval;
    165 
    166 	/* Filled by HC driver. */
    167 	struct usbd_pipe_methods *methods;
    168 };
    169 
    170 struct usbd_xfer {
    171 	struct usbd_pipe       *pipe;
    172 	void		       *priv;
    173 	void		       *buffer;
    174 	u_int32_t		length;
    175 	u_int32_t		actlen;
    176 	u_int16_t		flags;
    177 	u_int32_t		timeout;
    178 	usbd_status		status;
    179 	usbd_callback		callback;
    180 	__volatile char		done;
    181 
    182 	/* For control pipe */
    183 	usb_device_request_t	request;
    184 
    185 	/* For isoc */
    186 	u_int16_t		*frlengths;
    187 	int			nframes;
    188 
    189 	/* For memory allocation */
    190 	struct usbd_device     *device;
    191 	usb_dma_t		dmabuf;
    192 
    193 	int			rqflags;
    194 #define URQ_REQUEST	0x01
    195 #define URQ_AUTO_DMABUF	0x10
    196 #define URQ_DEV_DMABUF	0x20
    197 
    198 	SIMPLEQ_ENTRY(usbd_xfer) next;
    199 
    200 	void		       *hcpriv; /* private use by the HC driver */
    201 	int			hcprivint;
    202 
    203 #if defined(__FreeBSD__)
    204 	struct callout_handle  timo_handle;
    205 #endif
    206 };
    207 
    208 void usbd_init __P((void));
    209 void usbd_finish __P((void));
    210 
    211 /* Routines from usb_subr.c */
    212 int		usbctlprint __P((void *, const char *));
    213 void		usb_delay_ms __P((usbd_bus_handle, u_int));
    214 void		usbd_devinfo_vp __P((usbd_device_handle, char *, char *));
    215 usbd_status	usbd_reset_port __P((usbd_device_handle dev,
    216 				     int port, usb_port_status_t *ps));
    217 usbd_status	usbd_setup_pipe __P((usbd_device_handle dev,
    218 				     usbd_interface_handle iface,
    219 				     struct usbd_endpoint *, int,
    220 				     usbd_pipe_handle *pipe));
    221 usbd_status	usbd_new_device __P((device_ptr_t parent,
    222 				     usbd_bus_handle bus, int depth,
    223 				     int lowspeed, int port,
    224 				     struct usbd_port *));
    225 void		usbd_remove_device __P((usbd_device_handle,
    226 					struct usbd_port *));
    227 int		usbd_printBCD __P((char *cp, int bcd));
    228 usbd_status	usbd_fill_iface_data __P((usbd_device_handle dev,
    229 					  int i, int a));
    230 void		usb_free_device __P((usbd_device_handle));
    231 
    232 usbd_status	usb_insert_transfer __P((usbd_xfer_handle xfer));
    233 void		usb_transfer_complete __P((usbd_xfer_handle xfer));
    234 void		usb_disconnect_port __P((struct usbd_port *up, device_ptr_t));
    235 
    236 /* Routines from usb.c */
    237 void		usb_needs_explore __P((usbd_bus_handle));
    238 void		usb_schedsoftintr __P((struct usbd_bus *));
    239 
    240 #ifdef DIAGNOSTIC
    241 #define SPLUSBCHECK \
    242 	do { int _s = splusb(), _su = splusb(); \
    243 	     extern int cold; \
    244              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    245 				   _s, _su, __FILE__, __LINE__); \
    246 	     splx(_s); \
    247         } while (0)
    248 #else
    249 #define SPLUSBCHECK
    250 #endif
    251 
    252 /* Locator stuff. */
    253 
    254 #if defined(__NetBSD__)
    255 #include "locators.h"
    256 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    257 /* XXX these values are used to statically bind some elements in the USB tree
    258  * to specific driver instances. This should be somehow emulated in FreeBSD
    259  * but can be done later on.
    260  * The values are copied from the files.usb file in the NetBSD sources.
    261  */
    262 #define UHUBCF_PORT_DEFAULT -1
    263 #define UHUBCF_CONFIGURATION_DEFAULT -1
    264 #define UHUBCF_INTERFACE_DEFAULT -1
    265 #define UHUBCF_VENDOR_DEFAULT -1
    266 #define UHUBCF_PRODUCT_DEFAULT -1
    267 #define UHUBCF_RELEASE_DEFAULT -1
    268 #endif
    269 
    270 #if defined (__OpenBSD__)
    271 #define	UHUBCF_PORT		0
    272 #define	UHUBCF_CONFIGURATION	1
    273 #define	UHUBCF_INTERFACE	2
    274 #define	UHUBCF_VENDOR		3
    275 #define	UHUBCF_PRODUCT		4
    276 #define	UHUBCF_RELEASE		5
    277 #endif
    278 
    279 #define	uhubcf_port		cf_loc[UHUBCF_PORT]
    280 #define	uhubcf_configuration	cf_loc[UHUBCF_CONFIGURATION]
    281 #define	uhubcf_interface	cf_loc[UHUBCF_INTERFACE]
    282 #define	uhubcf_vendor		cf_loc[UHUBCF_VENDOR]
    283 #define	uhubcf_product		cf_loc[UHUBCF_PRODUCT]
    284 #define	uhubcf_release		cf_loc[UHUBCF_RELEASE]
    285 #define	UHUB_UNK_PORT		UHUBCF_PORT_DEFAULT /* wildcarded 'port' */
    286 #define	UHUB_UNK_CONFIGURATION	UHUBCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    287 #define	UHUB_UNK_INTERFACE	UHUBCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    288 #define	UHUB_UNK_VENDOR		UHUBCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    289 #define	UHUB_UNK_PRODUCT	UHUBCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    290 #define	UHUB_UNK_RELEASE	UHUBCF_RELEASE_DEFAULT /* wildcarded 'release' */
    291 
    292