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usbdivar.h revision 1.80.12.5
      1 /*	$NetBSD: usbdivar.h,v 1.80.12.5 2009/11/12 08:17:31 uebayasi 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 /* XXX API change */
     71 #if 0
     72 	usbd_status	      (*allocm)(struct usbd_bus *, usb_dma_t *,
     73 					u_int32_t bufsize);
     74 	void		      (*freem)(struct usbd_bus *, usb_dma_t *);
     75 #else
     76 	usbd_status	      (*allocm)(struct usbd_bus *, usbd_xfer_handle,
     77 					void *, size_t);
     78 	void		      (*freem)(struct usbd_bus *, usbd_xfer_handle,
     79 				       enum usbd_waitflg);
     80 #endif
     81 /* XXX API change */
     82 #if 0
     83 	struct usbd_xfer *    (*allocx)(struct usbd_bus *);
     84 #else
     85 	struct usbd_xfer *    (*allocx)(struct usbd_bus *, usbd_pipe_handle,
     86 					enum usbd_waitflg);
     87 #endif
     88 	void		      (*freex)(struct usbd_bus *, struct usbd_xfer *);
     89 	usbd_status	      (*map_alloc)(usbd_xfer_handle);
     90 	void		      (*map_free)(usbd_xfer_handle);
     91 	void		      (*mapm)(usbd_xfer_handle, void *, size_t);
     92 	/* XXXUEBAYASI should not belong here */
     93 	usbd_status	      (*mapm_mbuf)(usbd_xfer_handle, struct mbuf *);
     94 	void		      (*unmapm)(usbd_xfer_handle);
     95 };
     96 
     97 struct usbd_pipe_methods {
     98 	usbd_status	      (*transfer)(usbd_xfer_handle xfer);
     99 	usbd_status	      (*start)(usbd_xfer_handle xfer);
    100 	void		      (*abort)(usbd_xfer_handle xfer);
    101 	void		      (*close)(usbd_pipe_handle pipe);
    102 	void		      (*cleartoggle)(usbd_pipe_handle pipe);
    103 	void		      (*done)(usbd_xfer_handle xfer);
    104 };
    105 
    106 struct usbd_tt {
    107 	struct usbd_hub	       *hub;
    108 };
    109 
    110 struct usbd_port {
    111 	usb_port_status_t	status;
    112 	u_int16_t		power;	/* mA of current on port */
    113 	u_int8_t		portno;
    114 	u_int8_t		restartcnt;
    115 #define USBD_RESTART_MAX 5
    116 	u_int8_t		reattach;
    117 	struct usbd_device     *device;	/* Connected device */
    118 	struct usbd_device     *parent;	/* The ports hub */
    119 	struct usbd_tt	       *tt; /* Transaction translator (if any) */
    120 };
    121 
    122 struct usbd_hub {
    123 	usbd_status	      (*explore)(usbd_device_handle hub);
    124 	void		       *hubsoftc;
    125 	usb_hub_descriptor_t	hubdesc;
    126 	struct usbd_port        ports[1];
    127 };
    128 
    129 struct usb_softc;
    130 
    131 /*****/
    132 
    133 struct usbd_bus {
    134 	/* Filled by HC driver */
    135 	USBBASEDEVICE		bdev; /* base device, host adapter */
    136 	const struct usbd_bus_methods *methods;
    137 	u_int32_t		pipe_size; /* size of a pipe struct */
    138 	/* Filled by usb driver */
    139 	struct usbd_device     *root_hub;
    140 	usbd_device_handle	devices[USB_MAX_DEVICES];
    141 	char			needs_explore;/* a hub a signalled a change */
    142 	char			use_polling;
    143 	struct usb_softc       *usbctl;
    144 	struct usb_device_stats	stats;
    145 	int 			intr_context;
    146 	u_int			no_intrs;
    147 	int			usbrev;	/* USB revision */
    148 #define USBREV_UNKNOWN	0
    149 #define USBREV_PRE_1_0	1
    150 #define USBREV_1_0	2
    151 #define USBREV_1_1	3
    152 #define USBREV_2_0	4
    153 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1", "2.0" }
    154 
    155 #ifdef USB_USE_SOFTINTR
    156 #ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
    157 	void		       *soft; /* soft interrupt cookie */
    158 #else
    159 	struct callout		softi;
    160 #endif
    161 #endif
    162 };
    163 
    164 struct usbd_device {
    165 	struct usbd_bus	       *bus;           /* our controller */
    166 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    167 	u_int8_t		address;       /* device addess */
    168 	u_int8_t		config;	       /* current configuration # */
    169 	u_int8_t		depth;         /* distance from root hub */
    170 	u_int8_t		speed;         /* low/full/high speed */
    171 	u_int8_t		self_powered;  /* flag for self powered */
    172 	u_int16_t		power;         /* mA the device uses */
    173 	int16_t			langid;	       /* language for strings */
    174 #define USBD_NOLANG (-1)
    175 	usb_event_cookie_t	cookie;	       /* unique connection id */
    176 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    177 	struct usbd_device     *myhub;	       /* upstream hub */
    178 	struct usbd_port       *myhsport;      /* closest high speed port */
    179 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    180 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    181 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    182 	usb_device_descriptor_t ddesc;         /* device descriptor */
    183 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    184 	const struct usbd_quirks     *quirks;  /* device quirks, always set */
    185 	struct usbd_hub	       *hub;           /* only if this is a hub */
    186 	device_ptr_t	       *subdevs;       /* sub-devices, 0 terminated */
    187 	uint8_t		       *ifacenums;     /* sub-device interfacenumbers */
    188 };
    189 
    190 struct usbd_interface {
    191 	struct usbd_device     *device;
    192 	usb_interface_descriptor_t *idesc;
    193 	int			index;
    194 	int			altindex;
    195 	struct usbd_endpoint   *endpoints;
    196 	void		       *priv;
    197 	LIST_HEAD(, usbd_pipe)	pipes;
    198 };
    199 
    200 struct usbd_pipe {
    201 	struct usbd_interface  *iface;
    202 	struct usbd_device     *device;
    203 	struct usbd_endpoint   *endpoint;
    204 	int			refcnt;
    205 	char			running;
    206 	char			aborting;
    207 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    208 	LIST_ENTRY(usbd_pipe)	next;
    209 
    210 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
    211 	char			repeat;
    212 	int			interval;
    213 
    214 	/* Filled by HC driver. */
    215 	const struct usbd_pipe_methods *methods;
    216 };
    217 
    218 struct usbd_xfer {
    219 	struct usbd_pipe       *pipe;
    220 	void		       *priv;
    221 	void		       *buffer;
    222 	u_int32_t		length;
    223 	u_int32_t		actlen;
    224 	u_int16_t		flags;
    225 	u_int32_t		timeout;
    226 	usbd_status		status;
    227 	usbd_callback		callback;
    228 	volatile u_int8_t	done;
    229 #define XFER_DONE_BOTTOM	1
    230 #define XFER_DONE_TOP		2
    231 	u_int8_t		busy_free;	/* used for DIAGNOSTIC */
    232 #define XFER_FREE 0x46
    233 #define XFER_BUSY 0x55
    234 #define XFER_ONQU 0x9e
    235 
    236 	/* For control pipe */
    237 	usb_device_request_t	request;
    238 
    239 	/* For isoc */
    240 	u_int16_t	       *frlengths;
    241 	int			nframes;
    242 
    243 	/* For memory allocation */
    244 	struct usbd_device     *device;
    245 	void		       *hcbuffer;	/* buffer for HCI driver */
    246 	struct mbuf	       *mbuf_chain;
    247 
    248 	size_t			bufsize;
    249 
    250 	u_int16_t		rqflags;
    251 #define URQ_REQUEST		0x0001	/* xfer->request valid */
    252 #define URQ_AUTO_BUF		0x0010	/* automatically allocated buffer */
    253 #define URQ_DEV_BUF		0x0020	/* driver requested to allocate buffer*/
    254 #define URQ_DEV_MAP_PREPARED	0x0040	/* driver requested to prepare map */
    255 #define URQ_DEV_MAP_BUFFER	0x0080	/* driver requested to map buffer */
    256 #define URQ_DEV_MAP_MBUF	0x0100	/* driver requested to map mbuf */
    257 
    258 #define URQ_MASK_DRV_REQUESTED_BUF	\
    259 	(URQ_DEV_BUF | URQ_DEV_MAP_BUFFER | URQ_DEV_MAP_MBUF)
    260 #define URQ_MASK_BUF	(URQ_MASK_DRV_REQUESTED_BUF | URQ_AUTO_BUF)
    261 
    262 	SIMPLEQ_ENTRY(usbd_xfer) next;
    263 
    264 	void		       *hcpriv; /* private use by the HC driver */
    265 	u_int8_t		hcflags; /* private use by the HC driver */
    266 #define UXFER_ABORTING	0x01	/* xfer is aborting. */
    267 #define UXFER_ABORTWAIT	0x02	/* abort completion is being awaited. */
    268 
    269 	usb_callout_t		timeout_handle;
    270 	struct usb_task		task;
    271 };
    272 
    273 void usbd_init(void);
    274 void usbd_finish(void);
    275 
    276 #ifdef USB_DEBUG
    277 void usbd_dump_iface(struct usbd_interface *iface);
    278 void usbd_dump_device(struct usbd_device *dev);
    279 void usbd_dump_endpoint(struct usbd_endpoint *endp);
    280 void usbd_dump_queue(usbd_pipe_handle pipe);
    281 void usbd_dump_pipe(usbd_pipe_handle pipe);
    282 #endif
    283 
    284 /* Routines from usb_subr.c */
    285 int		usbctlprint(void *, const char *);
    286 void		usb_delay_ms(usbd_bus_handle, u_int);
    287 usbd_status	usbd_reset_port(usbd_device_handle, int, usb_port_status_t *);
    288 usbd_status	usbd_setup_pipe(usbd_device_handle dev,
    289 				usbd_interface_handle iface,
    290 				struct usbd_endpoint *, int,
    291 				usbd_pipe_handle *pipe);
    292 usbd_status	usbd_new_device(device_ptr_t, usbd_bus_handle, int, int, int,
    293 				struct usbd_port *);
    294 void		usbd_remove_device(usbd_device_handle, struct usbd_port *);
    295 int		usbd_printBCD(char *, size_t, int);
    296 usbd_status	usbd_fill_iface_data(usbd_device_handle, int, int);
    297 void		usb_free_device(usbd_device_handle);
    298 
    299 int		usbd_xfer_isread(usbd_xfer_handle);
    300 usbd_status	usb_insert_transfer(usbd_xfer_handle);
    301 void		usb_transfer_complete(usbd_xfer_handle);
    302 void		usb_disconnect_port(struct usbd_port *, device_ptr_t);
    303 
    304 /* Routines from usb.c */
    305 void		usb_needs_explore(usbd_device_handle);
    306 void		usb_needs_reattach(usbd_device_handle);
    307 void		usb_schedsoftintr(struct usbd_bus *);
    308 
    309 /*
    310  * XXX This check is extremely bogus. Bad Bad Bad.
    311  */
    312 #if defined(DIAGNOSTIC) && 0
    313 #define SPLUSBCHECK \
    314 	do { int _s = splusb(), _su = splusb(); \
    315              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    316 				   _s, _su, __FILE__, __LINE__); \
    317 	     splx(_s); \
    318         } while (0)
    319 #else
    320 #define SPLUSBCHECK
    321 #endif
    322 
    323 /* Locator stuff. */
    324 
    325 #if defined(__NetBSD__)
    326 #include "locators.h"
    327 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    328 /* XXX these values are used to statically bind some elements in the USB tree
    329  * to specific driver instances. This should be somehow emulated in FreeBSD
    330  * but can be done later on.
    331  * The values are copied from the files.usb file in the NetBSD sources.
    332  */
    333 #define UHUBCF_PORT_DEFAULT -1
    334 #define UHUBCF_CONFIGURATION_DEFAULT -1
    335 #define UHUBCF_INTERFACE_DEFAULT -1
    336 #define UHUBCF_VENDOR_DEFAULT -1
    337 #define UHUBCF_PRODUCT_DEFAULT -1
    338 #define UHUBCF_RELEASE_DEFAULT -1
    339 #endif
    340 
    341 #if defined (__OpenBSD__)
    342 #define	UHUBCF_PORT		0
    343 #define	UHUBCF_CONFIGURATION	1
    344 #define	UHUBCF_INTERFACE	2
    345 #define	UHUBCF_VENDOR		3
    346 #define	UHUBCF_PRODUCT		4
    347 #define	UHUBCF_RELEASE		5
    348 #endif
    349 
    350 #define	uhubcf_port		cf_loc[USBDEVIFCF_PORT]
    351 #define	uhubcf_configuration	cf_loc[USBDEVIFCF_CONFIGURATION]
    352 #define	uhubcf_interface	cf_loc[USBDEVIFCF_INTERFACE]
    353 #define	uhubcf_vendor		cf_loc[USBDEVIFCF_VENDOR]
    354 #define	uhubcf_product		cf_loc[USBDEVIFCF_PRODUCT]
    355 #define	uhubcf_release		cf_loc[USBDEVIFCF_RELEASE]
    356 #define	UHUB_UNK_PORT		USBDEVIFCF_PORT_DEFAULT /* wildcarded 'port' */
    357 #define	UHUB_UNK_CONFIGURATION	USBDEVIFCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    358 #define	UHUB_UNK_INTERFACE	USBDEVIFCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    359 #define	UHUB_UNK_VENDOR		USBDEVIFCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    360 #define	UHUB_UNK_PRODUCT	USBDEVIFCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    361 #define	UHUB_UNK_RELEASE	USBDEVIFCF_RELEASE_DEFAULT /* wildcarded 'release' */
    362 
    363