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usbdivar.h revision 1.82
      1 /*	$NetBSD: usbdivar.h,v 1.82 2008/02/18 05:24:24 dyoung 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 (lennart (at) augustsson.net) 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 #if defined(__NetBSD__)
     42 #include <sys/callout.h>
     43 #endif
     44 
     45 /* From usb_mem.h */
     46 DECLARE_USB_DMA_T;
     47 
     48 struct usbd_xfer;
     49 struct usbd_pipe;
     50 
     51 struct usbd_endpoint {
     52 	usb_endpoint_descriptor_t *edesc;
     53 	int			refcnt;
     54 };
     55 
     56 struct usbd_bus_methods {
     57 	usbd_status	      (*open_pipe)(struct usbd_pipe *pipe);
     58 	void		      (*soft_intr)(void *);
     59 	void		      (*do_poll)(struct usbd_bus *);
     60 	usbd_status	      (*allocm)(struct usbd_bus *, usb_dma_t *,
     61 					u_int32_t bufsize);
     62 	void		      (*freem)(struct usbd_bus *, usb_dma_t *);
     63 	struct usbd_xfer *    (*allocx)(struct usbd_bus *);
     64 	void		      (*freex)(struct usbd_bus *, struct usbd_xfer *);
     65 };
     66 
     67 struct usbd_pipe_methods {
     68 	usbd_status	      (*transfer)(usbd_xfer_handle xfer);
     69 	usbd_status	      (*start)(usbd_xfer_handle xfer);
     70 	void		      (*abort)(usbd_xfer_handle xfer);
     71 	void		      (*close)(usbd_pipe_handle pipe);
     72 	void		      (*cleartoggle)(usbd_pipe_handle pipe);
     73 	void		      (*done)(usbd_xfer_handle xfer);
     74 };
     75 
     76 #if 0 /* notyet */
     77 struct usbd_tt {
     78 	struct usbd_hub	       *hub;
     79 };
     80 #endif
     81 
     82 struct usbd_port {
     83 	usb_port_status_t	status;
     84 	u_int16_t		power;	/* mA of current on port */
     85 	u_int8_t		portno;
     86 	u_int8_t		restartcnt;
     87 #define USBD_RESTART_MAX 5
     88 	u_int8_t		reattach;
     89 	struct usbd_device     *device;	/* Connected device */
     90 	struct usbd_device     *parent;	/* The ports hub */
     91 #if 0
     92 	struct usbd_tt	       *tt; /* Transaction translator (if any) */
     93 #endif
     94 };
     95 
     96 struct usbd_hub {
     97 	usbd_status	      (*explore)(usbd_device_handle hub);
     98 	void		       *hubsoftc;
     99 	usb_hub_descriptor_t	hubdesc;
    100 	struct usbd_port        ports[1];
    101 };
    102 
    103 struct usb_softc;
    104 
    105 /*****/
    106 
    107 struct usbd_bus {
    108 	/* Filled by HC driver */
    109 	USBBASEDEVICE		bdev; /* base device, host adapter */
    110 	const struct usbd_bus_methods *methods;
    111 	u_int32_t		pipe_size; /* size of a pipe struct */
    112 	/* Filled by usb driver */
    113 	struct usbd_device     *root_hub;
    114 	usbd_device_handle	devices[USB_MAX_DEVICES];
    115 	char			needs_explore;/* a hub a signalled a change */
    116 	char			use_polling;
    117 	struct usb_softc       *usbctl;
    118 	struct usb_device_stats	stats;
    119 	int 			intr_context;
    120 	u_int			no_intrs;
    121 	int			usbrev;	/* USB revision */
    122 #define USBREV_UNKNOWN	0
    123 #define USBREV_PRE_1_0	1
    124 #define USBREV_1_0	2
    125 #define USBREV_1_1	3
    126 #define USBREV_2_0	4
    127 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1", "2.0" }
    128 
    129 	void		       *soft; /* soft interrupt cookie */
    130 #if defined(__NetBSD__) || defined(__OpenBSD__)
    131 	bus_dma_tag_t		dmatag;	/* DMA tag */
    132 #endif
    133 };
    134 
    135 struct usbd_device {
    136 	struct usbd_bus	       *bus;           /* our controller */
    137 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    138 	u_int8_t		address;       /* device addess */
    139 	u_int8_t		config;	       /* current configuration # */
    140 	u_int8_t		depth;         /* distance from root hub */
    141 	u_int8_t		speed;         /* low/full/high speed */
    142 	u_int8_t		self_powered;  /* flag for self powered */
    143 	u_int16_t		power;         /* mA the device uses */
    144 	int16_t			langid;	       /* language for strings */
    145 #define USBD_NOLANG (-1)
    146 	usb_event_cookie_t	cookie;	       /* unique connection id */
    147 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    148 	struct usbd_device     *myhub; 	       /* upstream hub */
    149 	struct usbd_port       *myhsport;      /* closest high speed port */
    150 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    151 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    152 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    153 	usb_device_descriptor_t ddesc;         /* device descriptor */
    154 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    155 	const struct usbd_quirks     *quirks;  /* device quirks, always set */
    156 	struct usbd_hub	       *hub;           /* only if this is a hub */
    157 	device_t	       *subdevs;       /* sub-devices, 0 terminated */
    158 };
    159 
    160 struct usbd_interface {
    161 	struct usbd_device     *device;
    162 	usb_interface_descriptor_t *idesc;
    163 	int			index;
    164 	int			altindex;
    165 	struct usbd_endpoint   *endpoints;
    166 	void		       *priv;
    167 	LIST_HEAD(, usbd_pipe)	pipes;
    168 };
    169 
    170 struct usbd_pipe {
    171 	struct usbd_interface  *iface;
    172 	struct usbd_device     *device;
    173 	struct usbd_endpoint   *endpoint;
    174 	int			refcnt;
    175 	char			running;
    176 	char			aborting;
    177 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    178 	LIST_ENTRY(usbd_pipe)	next;
    179 
    180 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
    181 	char			repeat;
    182 	int			interval;
    183 
    184 	/* Filled by HC driver. */
    185 	const struct usbd_pipe_methods *methods;
    186 };
    187 
    188 struct usbd_xfer {
    189 	struct usbd_pipe       *pipe;
    190 	void		       *priv;
    191 	void		       *buffer;
    192 	u_int32_t		length;
    193 	u_int32_t		actlen;
    194 	u_int16_t		flags;
    195 	u_int32_t		timeout;
    196 	usbd_status		status;
    197 	usbd_callback		callback;
    198 	volatile u_int8_t	done;
    199 	u_int8_t		busy_free;	/* used for DIAGNOSTIC */
    200 #define XFER_FREE 0x46
    201 #define XFER_BUSY 0x55
    202 #define XFER_ONQU 0x9e
    203 
    204 	/* For control pipe */
    205 	usb_device_request_t	request;
    206 
    207 	/* For isoc */
    208 	u_int16_t		*frlengths;
    209 	int			nframes;
    210 
    211 	/* For memory allocation */
    212 	struct usbd_device     *device;
    213 	usb_dma_t		dmabuf;
    214 
    215 	u_int8_t		rqflags;
    216 #define URQ_REQUEST	0x01
    217 #define URQ_AUTO_DMABUF	0x10
    218 #define URQ_DEV_DMABUF	0x20
    219 
    220 	SIMPLEQ_ENTRY(usbd_xfer) next;
    221 
    222 	void		       *hcpriv; /* private use by the HC driver */
    223 	u_int8_t		hcflags; /* private use by the HC driver */
    224 #define UXFER_ABORTING	0x01	/* xfer is aborting. */
    225 #define UXFER_ABORTWAIT	0x02	/* abort completion is being awaited. */
    226 
    227 	usb_callout_t		timeout_handle;
    228 };
    229 
    230 void usbd_init(void);
    231 void usbd_finish(void);
    232 
    233 #ifdef USB_DEBUG
    234 void usbd_dump_iface(struct usbd_interface *iface);
    235 void usbd_dump_device(struct usbd_device *dev);
    236 void usbd_dump_endpoint(struct usbd_endpoint *endp);
    237 void usbd_dump_queue(usbd_pipe_handle pipe);
    238 void usbd_dump_pipe(usbd_pipe_handle pipe);
    239 #endif
    240 
    241 /* Routines from usb_subr.c */
    242 int		usbctlprint(void *, const char *);
    243 void		usb_delay_ms(usbd_bus_handle, u_int);
    244 usbd_status	usbd_reset_port(usbd_device_handle, int, usb_port_status_t *);
    245 usbd_status	usbd_setup_pipe(usbd_device_handle dev,
    246 				usbd_interface_handle iface,
    247 				struct usbd_endpoint *, int,
    248 				usbd_pipe_handle *pipe);
    249 usbd_status	usbd_new_device(device_ptr_t, usbd_bus_handle, int, int, int,
    250 				struct usbd_port *);
    251 void		usbd_remove_device(usbd_device_handle, struct usbd_port *);
    252 int		usbd_printBCD(char *, size_t, int);
    253 usbd_status	usbd_fill_iface_data(usbd_device_handle, int, int);
    254 void		usb_free_device(usbd_device_handle);
    255 
    256 usbd_status	usb_insert_transfer(usbd_xfer_handle);
    257 void		usb_transfer_complete(usbd_xfer_handle);
    258 void		usb_disconnect_port(struct usbd_port *, device_ptr_t);
    259 
    260 /* Routines from usb.c */
    261 void		usb_needs_explore(usbd_device_handle);
    262 void		usb_needs_reattach(usbd_device_handle);
    263 void		usb_schedsoftintr(struct usbd_bus *);
    264 
    265 /*
    266  * XXX This check is extremely bogus. Bad Bad Bad.
    267  */
    268 #if defined(DIAGNOSTIC) && 0
    269 #define SPLUSBCHECK \
    270 	do { int _s = splusb(), _su = splusb(); \
    271              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    272 				   _s, _su, __FILE__, __LINE__); \
    273 	     splx(_s); \
    274         } while (0)
    275 #else
    276 #define SPLUSBCHECK
    277 #endif
    278 
    279 /* Locator stuff. */
    280 
    281 #if defined(__NetBSD__)
    282 #include "locators.h"
    283 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    284 /* XXX these values are used to statically bind some elements in the USB tree
    285  * to specific driver instances. This should be somehow emulated in FreeBSD
    286  * but can be done later on.
    287  * The values are copied from the files.usb file in the NetBSD sources.
    288  */
    289 #define UHUBCF_PORT_DEFAULT -1
    290 #define UHUBCF_CONFIGURATION_DEFAULT -1
    291 #define UHUBCF_INTERFACE_DEFAULT -1
    292 #define UHUBCF_VENDOR_DEFAULT -1
    293 #define UHUBCF_PRODUCT_DEFAULT -1
    294 #define UHUBCF_RELEASE_DEFAULT -1
    295 #endif
    296 
    297 #if defined (__OpenBSD__)
    298 #define	UHUBCF_PORT		0
    299 #define	UHUBCF_CONFIGURATION	1
    300 #define	UHUBCF_INTERFACE	2
    301 #define	UHUBCF_VENDOR		3
    302 #define	UHUBCF_PRODUCT		4
    303 #define	UHUBCF_RELEASE		5
    304 #endif
    305 
    306 #define	uhubcf_port		cf_loc[USBDEVIFCF_PORT]
    307 #define	uhubcf_configuration	cf_loc[USBDEVIFCF_CONFIGURATION]
    308 #define	uhubcf_interface	cf_loc[USBDEVIFCF_INTERFACE]
    309 #define	uhubcf_vendor		cf_loc[USBDEVIFCF_VENDOR]
    310 #define	uhubcf_product		cf_loc[USBDEVIFCF_PRODUCT]
    311 #define	uhubcf_release		cf_loc[USBDEVIFCF_RELEASE]
    312 #define	UHUB_UNK_PORT		USBDEVIFCF_PORT_DEFAULT /* wildcarded 'port' */
    313 #define	UHUB_UNK_CONFIGURATION	USBDEVIFCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    314 #define	UHUB_UNK_INTERFACE	USBDEVIFCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    315 #define	UHUB_UNK_VENDOR		USBDEVIFCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    316 #define	UHUB_UNK_PRODUCT	USBDEVIFCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    317 #define	UHUB_UNK_RELEASE	USBDEVIFCF_RELEASE_DEFAULT /* wildcarded 'release' */
    318 
    319