Home | History | Annotate | Line # | Download | only in usb
usbdivar.h revision 1.80.12.4
      1 /*	$NetBSD: usbdivar.h,v 1.80.12.4 2008/05/21 05:04:03 itohy Exp $	*/
      2 /*	$FreeBSD: src/sys/dev/usb/usbdivar.h,v 1.47 2006/09/07 00:06:42 imp 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 struct usbd_xfer;
     46 struct usbd_pipe;
     47 struct mbuf;
     48 
     49 struct usbd_endpoint {
     50 	usb_endpoint_descriptor_t *edesc;
     51 	int			refcnt;
     52 	int			savedtoggle;
     53 };
     54 
     55 enum usbd_waitflg {
     56 	U_NOWAIT,	/* callee is not allowed to sleep */
     57 	U_WAITOK	/* caller has context and callee is allowed to sleep */
     58 };
     59 
     60 enum usbd_maptype {
     61 	U_MAP_NONE,	/* driver dosn't provide buffer to be mapped */
     62 	U_MAP_BUFFER,	/* map plain buffer provided by driver */
     63 	U_MAP_MBUF	/* map mbuf provided by driver */
     64 };
     65 
     66 struct usbd_bus_methods {
     67 	usbd_status	      (*open_pipe)(struct usbd_pipe *pipe);
     68 	void		      (*soft_intr)(void *);
     69 	void		      (*do_poll)(struct usbd_bus *);
     70 	usbd_status	      (*allocm)(struct usbd_bus *, usbd_xfer_handle,
     71 					void *, size_t);
     72 	void		      (*freem)(struct usbd_bus *, usbd_xfer_handle,
     73 				       enum usbd_waitflg);
     74 	usbd_status	      (*map_alloc)(usbd_xfer_handle);
     75 	void		      (*map_free)(usbd_xfer_handle);
     76 	void		      (*mapm)(usbd_xfer_handle, void *, size_t);
     77 	usbd_status	      (*mapm_mbuf)(usbd_xfer_handle, struct mbuf *);
     78 	void		      (*unmapm)(usbd_xfer_handle);
     79 	struct usbd_xfer *    (*allocx)(struct usbd_bus *, usbd_pipe_handle,
     80 					enum usbd_waitflg);
     81 	void		      (*freex)(struct usbd_bus *, struct usbd_xfer *);
     82 };
     83 
     84 struct usbd_pipe_methods {
     85 	usbd_status	      (*transfer)(usbd_xfer_handle xfer);
     86 	usbd_status	      (*start)(usbd_xfer_handle xfer);
     87 	void		      (*abort)(usbd_xfer_handle xfer);
     88 	void		      (*close)(usbd_pipe_handle pipe);
     89 	void		      (*cleartoggle)(usbd_pipe_handle pipe);
     90 	void		      (*done)(usbd_xfer_handle xfer);
     91 };
     92 
     93 struct usbd_tt {
     94 	struct usbd_hub	       *hub;
     95 };
     96 
     97 struct usbd_port {
     98 	usb_port_status_t	status;
     99 	u_int16_t		power;	/* mA of current on port */
    100 	u_int8_t		portno;
    101 	u_int8_t		restartcnt;
    102 #define USBD_RESTART_MAX 5
    103 	u_int8_t		reattach;
    104 	struct usbd_device     *device;	/* Connected device */
    105 	struct usbd_device     *parent;	/* The ports hub */
    106 	struct usbd_tt	       *tt; /* Transaction translator (if any) */
    107 };
    108 
    109 struct usbd_hub {
    110 	usbd_status	      (*explore)(usbd_device_handle hub);
    111 	void		       *hubsoftc;
    112 	usb_hub_descriptor_t	hubdesc;
    113 	struct usbd_port        ports[1];
    114 };
    115 
    116 struct usb_softc;
    117 
    118 /*****/
    119 
    120 struct usbd_bus {
    121 	/* Filled by HC driver */
    122 	USBBASEDEVICE		bdev; /* base device, host adapter */
    123 	const struct usbd_bus_methods *methods;
    124 	u_int32_t		pipe_size; /* size of a pipe struct */
    125 	/* Filled by usb driver */
    126 	struct usbd_device     *root_hub;
    127 	usbd_device_handle	devices[USB_MAX_DEVICES];
    128 	char			needs_explore;/* a hub a signalled a change */
    129 	char			use_polling;
    130 	struct usb_softc       *usbctl;
    131 	struct usb_device_stats	stats;
    132 	int 			intr_context;
    133 	u_int			no_intrs;
    134 	int			usbrev;	/* USB revision */
    135 #define USBREV_UNKNOWN	0
    136 #define USBREV_PRE_1_0	1
    137 #define USBREV_1_0	2
    138 #define USBREV_1_1	3
    139 #define USBREV_2_0	4
    140 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1", "2.0" }
    141 
    142 #ifdef USB_USE_SOFTINTR
    143 #ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
    144 	void		       *soft; /* soft interrupt cookie */
    145 #else
    146 	struct callout		softi;
    147 #endif
    148 #endif
    149 };
    150 
    151 struct usbd_device {
    152 	struct usbd_bus	       *bus;           /* our controller */
    153 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    154 	u_int8_t		address;       /* device addess */
    155 	u_int8_t		config;	       /* current configuration # */
    156 	u_int8_t		depth;         /* distance from root hub */
    157 	u_int8_t		speed;         /* low/full/high speed */
    158 	u_int8_t		self_powered;  /* flag for self powered */
    159 	u_int16_t		power;         /* mA the device uses */
    160 	int16_t			langid;	       /* language for strings */
    161 #define USBD_NOLANG (-1)
    162 	usb_event_cookie_t	cookie;	       /* unique connection id */
    163 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    164 	struct usbd_device     *myhub;	       /* upstream hub */
    165 	struct usbd_port       *myhsport;      /* closest high speed port */
    166 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    167 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    168 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    169 	usb_device_descriptor_t ddesc;         /* device descriptor */
    170 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    171 	const struct usbd_quirks     *quirks;  /* device quirks, always set */
    172 	struct usbd_hub	       *hub;           /* only if this is a hub */
    173 	device_ptr_t	       *subdevs;       /* sub-devices, 0 terminated */
    174 	uint8_t		       *ifacenums;     /* sub-device interfacenumbers */
    175 };
    176 
    177 struct usbd_interface {
    178 	struct usbd_device     *device;
    179 	usb_interface_descriptor_t *idesc;
    180 	int			index;
    181 	int			altindex;
    182 	struct usbd_endpoint   *endpoints;
    183 	void		       *priv;
    184 	LIST_HEAD(, usbd_pipe)	pipes;
    185 };
    186 
    187 struct usbd_pipe {
    188 	struct usbd_interface  *iface;
    189 	struct usbd_device     *device;
    190 	struct usbd_endpoint   *endpoint;
    191 	int			refcnt;
    192 	char			running;
    193 	char			aborting;
    194 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    195 	LIST_ENTRY(usbd_pipe)	next;
    196 
    197 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
    198 	char			repeat;
    199 	int			interval;
    200 
    201 	/* Filled by HC driver. */
    202 	const struct usbd_pipe_methods *methods;
    203 };
    204 
    205 struct usbd_xfer {
    206 	struct usbd_pipe       *pipe;
    207 	void		       *priv;
    208 	void		       *buffer;
    209 	u_int32_t		length;
    210 	u_int32_t		actlen;
    211 	u_int16_t		flags;
    212 	u_int32_t		timeout;
    213 	usbd_status		status;
    214 	usbd_callback		callback;
    215 	volatile u_int8_t	done;
    216 #define XFER_DONE_BOTTOM	1
    217 #define XFER_DONE_TOP		2
    218 	u_int8_t		busy_free;	/* used for DIAGNOSTIC */
    219 #define XFER_FREE 0x46
    220 #define XFER_BUSY 0x55
    221 #define XFER_ONQU 0x9e
    222 
    223 	/* For control pipe */
    224 	usb_device_request_t	request;
    225 
    226 	/* For isoc */
    227 	u_int16_t	       *frlengths;
    228 	int			nframes;
    229 
    230 	/* For memory allocation */
    231 	struct usbd_device     *device;
    232 	void		       *hcbuffer;	/* buffer for HCI driver */
    233 	struct mbuf	       *mbuf_chain;
    234 
    235 	size_t			bufsize;
    236 
    237 	u_int16_t		rqflags;
    238 #define URQ_REQUEST		0x0001	/* xfer->request valid */
    239 #define URQ_AUTO_BUF		0x0010	/* automatically allocated buffer */
    240 #define URQ_DEV_BUF		0x0020	/* driver requested to allocate buffer*/
    241 #define URQ_DEV_MAP_PREPARED	0x0040	/* driver requested to prepare map */
    242 #define URQ_DEV_MAP_BUFFER	0x0080	/* driver requested to map buffer */
    243 #define URQ_DEV_MAP_MBUF	0x0100	/* driver requested to map mbuf */
    244 
    245 #define URQ_MASK_DRV_REQUESTED_BUF	\
    246 	(URQ_DEV_BUF | URQ_DEV_MAP_BUFFER | URQ_DEV_MAP_MBUF)
    247 #define URQ_MASK_BUF	(URQ_MASK_DRV_REQUESTED_BUF | URQ_AUTO_BUF)
    248 
    249 	SIMPLEQ_ENTRY(usbd_xfer) next;
    250 
    251 	void		       *hcpriv; /* private use by the HC driver */
    252 	u_int8_t		hcflags; /* private use by the HC driver */
    253 #define UXFER_ABORTING	0x01	/* xfer is aborting. */
    254 #define UXFER_ABORTWAIT	0x02	/* abort completion is being awaited. */
    255 
    256 	usb_callout_t		timeout_handle;
    257 	struct usb_task		task;
    258 };
    259 
    260 void usbd_init(void);
    261 void usbd_finish(void);
    262 
    263 #ifdef USB_DEBUG
    264 void usbd_dump_iface(struct usbd_interface *iface);
    265 void usbd_dump_device(struct usbd_device *dev);
    266 void usbd_dump_endpoint(struct usbd_endpoint *endp);
    267 void usbd_dump_queue(usbd_pipe_handle pipe);
    268 void usbd_dump_pipe(usbd_pipe_handle pipe);
    269 #endif
    270 
    271 /* Routines from usb_subr.c */
    272 int		usbctlprint(void *, const char *);
    273 void		usb_delay_ms(usbd_bus_handle, u_int);
    274 usbd_status	usbd_reset_port(usbd_device_handle, int, usb_port_status_t *);
    275 usbd_status	usbd_setup_pipe(usbd_device_handle dev,
    276 				usbd_interface_handle iface,
    277 				struct usbd_endpoint *, int,
    278 				usbd_pipe_handle *pipe);
    279 usbd_status	usbd_new_device(device_ptr_t, usbd_bus_handle, int, int, int,
    280 				struct usbd_port *);
    281 void		usbd_remove_device(usbd_device_handle, struct usbd_port *);
    282 int		usbd_printBCD(char *, size_t, int);
    283 usbd_status	usbd_fill_iface_data(usbd_device_handle, int, int);
    284 void		usb_free_device(usbd_device_handle);
    285 
    286 int		usbd_xfer_isread(usbd_xfer_handle);
    287 usbd_status	usb_insert_transfer(usbd_xfer_handle);
    288 void		usb_transfer_complete(usbd_xfer_handle);
    289 void		usb_disconnect_port(struct usbd_port *, device_ptr_t);
    290 
    291 /* Routines from usb.c */
    292 void		usb_needs_explore(usbd_device_handle);
    293 void		usb_needs_reattach(usbd_device_handle);
    294 void		usb_schedsoftintr(struct usbd_bus *);
    295 
    296 /*
    297  * XXX This check is extremely bogus. Bad Bad Bad.
    298  */
    299 #if defined(DIAGNOSTIC) && 0
    300 #define SPLUSBCHECK \
    301 	do { int _s = splusb(), _su = splusb(); \
    302              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    303 				   _s, _su, __FILE__, __LINE__); \
    304 	     splx(_s); \
    305         } while (0)
    306 #else
    307 #define SPLUSBCHECK
    308 #endif
    309 
    310 /* Locator stuff. */
    311 
    312 #if defined(__NetBSD__)
    313 #include "locators.h"
    314 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    315 /* XXX these values are used to statically bind some elements in the USB tree
    316  * to specific driver instances. This should be somehow emulated in FreeBSD
    317  * but can be done later on.
    318  * The values are copied from the files.usb file in the NetBSD sources.
    319  */
    320 #define UHUBCF_PORT_DEFAULT -1
    321 #define UHUBCF_CONFIGURATION_DEFAULT -1
    322 #define UHUBCF_INTERFACE_DEFAULT -1
    323 #define UHUBCF_VENDOR_DEFAULT -1
    324 #define UHUBCF_PRODUCT_DEFAULT -1
    325 #define UHUBCF_RELEASE_DEFAULT -1
    326 #endif
    327 
    328 #if defined (__OpenBSD__)
    329 #define	UHUBCF_PORT		0
    330 #define	UHUBCF_CONFIGURATION	1
    331 #define	UHUBCF_INTERFACE	2
    332 #define	UHUBCF_VENDOR		3
    333 #define	UHUBCF_PRODUCT		4
    334 #define	UHUBCF_RELEASE		5
    335 #endif
    336 
    337 #define	uhubcf_port		cf_loc[USBDEVIFCF_PORT]
    338 #define	uhubcf_configuration	cf_loc[USBDEVIFCF_CONFIGURATION]
    339 #define	uhubcf_interface	cf_loc[USBDEVIFCF_INTERFACE]
    340 #define	uhubcf_vendor		cf_loc[USBDEVIFCF_VENDOR]
    341 #define	uhubcf_product		cf_loc[USBDEVIFCF_PRODUCT]
    342 #define	uhubcf_release		cf_loc[USBDEVIFCF_RELEASE]
    343 #define	UHUB_UNK_PORT		USBDEVIFCF_PORT_DEFAULT /* wildcarded 'port' */
    344 #define	UHUB_UNK_CONFIGURATION	USBDEVIFCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    345 #define	UHUB_UNK_INTERFACE	USBDEVIFCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    346 #define	UHUB_UNK_VENDOR		USBDEVIFCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    347 #define	UHUB_UNK_PRODUCT	USBDEVIFCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    348 #define	UHUB_UNK_RELEASE	USBDEVIFCF_RELEASE_DEFAULT /* wildcarded 'release' */
    349 
    350