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usbdivar.h revision 1.64
      1 /*	$NetBSD: usbdivar.h,v 1.64 2001/11/10 16:54:56 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 (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 struct usbd_port {
     77 	usb_port_status_t	status;
     78 	u_int16_t		power;	/* mA of current on port */
     79 	u_int8_t		portno;
     80 	u_int8_t		restartcnt;
     81 #define USBD_RESTART_MAX 5
     82 	struct usbd_device     *device;
     83 	struct usbd_device     *parent;	/* The ports hub */
     84 };
     85 
     86 struct usbd_hub {
     87 	usbd_status	      (*explore)(usbd_device_handle hub);
     88 	void		       *hubsoftc;
     89 	usb_hub_descriptor_t	hubdesc;
     90 	struct usbd_port        ports[1];
     91 };
     92 
     93 struct usb_softc;
     94 
     95 /*****/
     96 
     97 struct usbd_bus {
     98 	/* Filled by HC driver */
     99 	USBBASEDEVICE		bdev; /* base device, host adapter */
    100 	struct usbd_bus_methods	*methods;
    101 	u_int32_t		pipe_size; /* size of a pipe struct */
    102 	/* Filled by usb driver */
    103 	struct usbd_device     *root_hub;
    104 	usbd_device_handle	devices[USB_MAX_DEVICES];
    105 	char			needs_explore;/* a hub a signalled a change */
    106 	char			use_polling;
    107 	struct usb_softc       *usbctl;
    108 	struct usb_device_stats	stats;
    109 	int 			intr_context;
    110 	u_int			no_intrs;
    111 	int			usbrev;	/* USB revision */
    112 #define USBREV_UNKNOWN	0
    113 #define USBREV_PRE_1_0	1
    114 #define USBREV_1_0	2
    115 #define USBREV_1_1	3
    116 #define USBREV_2_0	4
    117 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1", "2.0" }
    118 
    119 #ifdef USB_USE_SOFTINTR
    120 #ifdef __HAVE_GENERIC_SOFT_INTERRUPTS
    121 	void		       *soft; /* soft interrupt cookie */
    122 #else
    123 	struct callout		softi;
    124 #endif
    125 #endif
    126 
    127 #if defined(__NetBSD__) || defined(__OpenBSD__)
    128 	bus_dma_tag_t		dmatag;	/* DMA tag */
    129 #endif
    130 };
    131 
    132 struct usbd_device {
    133 	struct usbd_bus	       *bus;           /* our controller */
    134 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    135 	u_int8_t		address;       /* device addess */
    136 	u_int8_t		config;	       /* current configuration # */
    137 	u_int8_t		depth;         /* distance from root hub */
    138 	u_int8_t		lowspeed;      /* lowspeed flag */
    139 	u_int8_t		self_powered;  /* flag for self powered */
    140 	u_int16_t		power;         /* mA the device uses */
    141 	int16_t			langid;	       /* language for strings */
    142 #define USBD_NOLANG (-1)
    143 	usb_event_cookie_t	cookie;	       /* unique connection id */
    144 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    145 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    146 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    147 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    148 	usb_device_descriptor_t ddesc;         /* device descriptor */
    149 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    150 	const struct usbd_quirks     *quirks;  /* device quirks, always set */
    151 	struct usbd_hub	       *hub;           /* only if this is a hub */
    152 	device_ptr_t	       *subdevs;       /* sub-devices, 0 terminated */
    153 };
    154 
    155 struct usbd_interface {
    156 	struct usbd_device     *device;
    157 	usb_interface_descriptor_t *idesc;
    158 	int			index;
    159 	int			altindex;
    160 	struct usbd_endpoint   *endpoints;
    161 	void		       *priv;
    162 	LIST_HEAD(, usbd_pipe)	pipes;
    163 };
    164 
    165 struct usbd_pipe {
    166 	struct usbd_interface  *iface;
    167 	struct usbd_device     *device;
    168 	struct usbd_endpoint   *endpoint;
    169 	int			refcnt;
    170 	char			running;
    171 	char			aborting;
    172 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    173 	LIST_ENTRY(usbd_pipe)	next;
    174 
    175 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
    176 	char			repeat;
    177 	int			interval;
    178 
    179 	usb_callout_t		abort_handle;
    180 
    181 	/* Filled by HC driver. */
    182 	struct usbd_pipe_methods *methods;
    183 };
    184 
    185 struct usbd_xfer {
    186 	struct usbd_pipe       *pipe;
    187 	void		       *priv;
    188 	void		       *buffer;
    189 	u_int32_t		length;
    190 	u_int32_t		actlen;
    191 	u_int16_t		flags;
    192 	u_int32_t		timeout;
    193 	usbd_status		status;
    194 	usbd_callback		callback;
    195 	__volatile char		done;
    196 #ifdef DIAGNOSTIC
    197 	u_int32_t		busy_free;
    198 #define XFER_FREE 0x46524545
    199 #define XFER_BUSY 0x42555357
    200 #endif
    201 
    202 	/* For control pipe */
    203 	usb_device_request_t	request;
    204 
    205 	/* For isoc */
    206 	u_int16_t		*frlengths;
    207 	int			nframes;
    208 
    209 	/* For memory allocation */
    210 	struct usbd_device     *device;
    211 	usb_dma_t		dmabuf;
    212 
    213 	int			rqflags;
    214 #define URQ_REQUEST	0x01
    215 #define URQ_AUTO_DMABUF	0x10
    216 #define URQ_DEV_DMABUF	0x20
    217 
    218 	SIMPLEQ_ENTRY(usbd_xfer) next;
    219 
    220 	void		       *hcpriv; /* private use by the HC driver */
    221 
    222 	usb_callout_t		timeout_handle;
    223 };
    224 
    225 void usbd_init(void);
    226 void usbd_finish(void);
    227 
    228 void usbd_dump_iface(struct usbd_interface *iface);
    229 void usbd_dump_device(struct usbd_device *dev);
    230 void usbd_dump_endpoint(struct usbd_endpoint *endp);
    231 void usbd_dump_queue(usbd_pipe_handle pipe);
    232 void usbd_dump_pipe(usbd_pipe_handle pipe);
    233 
    234 /* Routines from usb_subr.c */
    235 int		usbctlprint(void *, const char *);
    236 void		usb_delay_ms(usbd_bus_handle, u_int);
    237 usbd_status	usbd_reset_port(usbd_device_handle dev,
    238 				int port, usb_port_status_t *ps);
    239 usbd_status	usbd_setup_pipe(usbd_device_handle dev,
    240 				usbd_interface_handle iface,
    241 				struct usbd_endpoint *, int,
    242 				usbd_pipe_handle *pipe);
    243 usbd_status	usbd_new_device(device_ptr_t parent,
    244 				usbd_bus_handle bus, int depth,
    245 				int lowspeed, int port,
    246 				struct usbd_port *);
    247 void		usbd_remove_device(usbd_device_handle, struct usbd_port *);
    248 int		usbd_printBCD(char *cp, int bcd);
    249 usbd_status	usbd_fill_iface_data(usbd_device_handle dev, int i, int a);
    250 void		usb_free_device(usbd_device_handle);
    251 
    252 usbd_status	usb_insert_transfer(usbd_xfer_handle xfer);
    253 void		usb_transfer_complete(usbd_xfer_handle xfer);
    254 void		usb_disconnect_port(struct usbd_port *up, device_ptr_t);
    255 
    256 /* Routines from usb.c */
    257 void		usb_needs_explore(usbd_device_handle);
    258 void		usb_schedsoftintr(struct usbd_bus *);
    259 
    260 /*
    261  * XXX This check is extremely bogus. Bad Bad Bad.
    262  */
    263 #if defined(DIAGNOSTIC) && 0
    264 #define SPLUSBCHECK \
    265 	do { int _s = splusb(), _su = splusb(); \
    266              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    267 				   _s, _su, __FILE__, __LINE__); \
    268 	     splx(_s); \
    269         } while (0)
    270 #else
    271 #define SPLUSBCHECK
    272 #endif
    273 
    274 /* Locator stuff. */
    275 
    276 #if defined(__NetBSD__)
    277 #include "locators.h"
    278 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    279 /* XXX these values are used to statically bind some elements in the USB tree
    280  * to specific driver instances. This should be somehow emulated in FreeBSD
    281  * but can be done later on.
    282  * The values are copied from the files.usb file in the NetBSD sources.
    283  */
    284 #define UHUBCF_PORT_DEFAULT -1
    285 #define UHUBCF_CONFIGURATION_DEFAULT -1
    286 #define UHUBCF_INTERFACE_DEFAULT -1
    287 #define UHUBCF_VENDOR_DEFAULT -1
    288 #define UHUBCF_PRODUCT_DEFAULT -1
    289 #define UHUBCF_RELEASE_DEFAULT -1
    290 #endif
    291 
    292 #if defined (__OpenBSD__)
    293 #define	UHUBCF_PORT		0
    294 #define	UHUBCF_CONFIGURATION	1
    295 #define	UHUBCF_INTERFACE	2
    296 #define	UHUBCF_VENDOR		3
    297 #define	UHUBCF_PRODUCT		4
    298 #define	UHUBCF_RELEASE		5
    299 #endif
    300 
    301 #define	uhubcf_port		cf_loc[UHUBCF_PORT]
    302 #define	uhubcf_configuration	cf_loc[UHUBCF_CONFIGURATION]
    303 #define	uhubcf_interface	cf_loc[UHUBCF_INTERFACE]
    304 #define	uhubcf_vendor		cf_loc[UHUBCF_VENDOR]
    305 #define	uhubcf_product		cf_loc[UHUBCF_PRODUCT]
    306 #define	uhubcf_release		cf_loc[UHUBCF_RELEASE]
    307 #define	UHUB_UNK_PORT		UHUBCF_PORT_DEFAULT /* wildcarded 'port' */
    308 #define	UHUB_UNK_CONFIGURATION	UHUBCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    309 #define	UHUB_UNK_INTERFACE	UHUBCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    310 #define	UHUB_UNK_VENDOR		UHUBCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    311 #define	UHUB_UNK_PRODUCT	UHUBCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    312 #define	UHUB_UNK_RELEASE	UHUBCF_RELEASE_DEFAULT /* wildcarded 'release' */
    313 
    314