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usbdivar.h revision 1.43
      1 /*	$NetBSD: usbdivar.h,v 1.43 2000/01/16 09:43:43 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		      (*do_poll)__P((struct usbd_bus *));
     55 	usbd_status	      (*allocm)__P((struct usbd_bus *, usb_dma_t *,
     56 					    u_int32_t bufsize));
     57 	void		      (*freem)__P((struct usbd_bus *, usb_dma_t *));
     58 };
     59 
     60 struct usbd_pipe_methods {
     61 	usbd_status	      (*transfer)__P((usbd_xfer_handle xfer));
     62 	usbd_status	      (*start)__P((usbd_xfer_handle xfer));
     63 	void		      (*abort)__P((usbd_xfer_handle xfer));
     64 	void		      (*close)__P((usbd_pipe_handle pipe));
     65 	void		      (*cleartoggle)__P((usbd_pipe_handle pipe));
     66 	void		      (*done)__P((usbd_xfer_handle xfer));
     67 };
     68 
     69 struct usbd_port {
     70 	usb_port_status_t	status;
     71 	u_int16_t		power;	/* mA of current on port */
     72 	u_int8_t		portno;
     73 	u_int8_t		restartcnt;
     74 #define USBD_RESTART_MAX 5
     75 	struct usbd_device     *device;
     76 	struct usbd_device     *parent;	/* The ports hub */
     77 };
     78 
     79 struct usbd_hub {
     80 	usbd_status	      (*explore)__P((usbd_device_handle hub));
     81 	void		       *hubsoftc;
     82 	usb_hub_descriptor_t	hubdesc;
     83 	struct usbd_port        ports[1];
     84 };
     85 
     86 struct usb_softc;
     87 
     88 /*****/
     89 
     90 struct usbd_bus {
     91 	/* Filled by HC driver */
     92 	USBBASEDEVICE		bdev; /* base device, host adapter */
     93 	struct usbd_bus_methods	*methods;
     94 	u_int32_t		pipe_size; /* size of a pipe struct */
     95 	/* Filled by usb driver */
     96 	struct usbd_device     *root_hub;
     97 	usbd_device_handle	devices[USB_MAX_DEVICES];
     98 	char			needs_explore;/* a hub a signalled a change */
     99 	char			use_polling;
    100 	struct usb_softc       *usbctl;
    101 	struct usb_device_stats	stats;
    102 	int 			intr_context;
    103 	u_int			no_intrs;
    104 	int			usbrev;	/* USB revision */
    105 #define USBREV_UNKNOWN	0
    106 #define USBREV_PRE_1_0	1
    107 #define USBREV_1_0	2
    108 #define USBREV_1_1	3
    109 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1" }
    110 
    111 #if defined(__NetBSD__) || defined(__OpenBSD__)
    112 	bus_dma_tag_t		dmatag;	/* DMA tag */
    113 #endif
    114 };
    115 
    116 struct usbd_device {
    117 	struct usbd_bus	       *bus;           /* our controller */
    118 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    119 	u_int8_t		address;       /* device addess */
    120 	u_int8_t		config;	       /* current configuration # */
    121 	u_int8_t		depth;         /* distance from root hub */
    122 	u_int8_t		lowspeed;      /* lowspeed flag */
    123 	u_int8_t		self_powered;  /* flag for self powered */
    124 	u_int16_t		power;         /* mA the device uses */
    125 	int16_t			langid;	       /* language for strings */
    126 #define USBD_NOLANG (-1)
    127 	usb_event_cookie_t	cookie;	       /* unique connection id */
    128 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    129 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    130 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    131 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    132 	usb_device_descriptor_t ddesc;         /* device descriptor */
    133 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    134 	struct usbd_quirks     *quirks;        /* device quirks, always set */
    135 	struct usbd_hub	       *hub;           /* only if this is a hub */
    136 	device_ptr_t	       *subdevs;       /* sub-devices, 0 terminated */
    137 };
    138 
    139 struct usbd_interface {
    140 	struct usbd_device     *device;
    141 	usb_interface_descriptor_t *idesc;
    142 	int			index;
    143 	int			altindex;
    144 	struct usbd_endpoint   *endpoints;
    145 	void		       *priv;
    146 	LIST_HEAD(, usbd_pipe)	pipes;
    147 };
    148 
    149 struct usbd_pipe {
    150 	struct usbd_interface  *iface;
    151 	struct usbd_device     *device;
    152 	struct usbd_endpoint   *endpoint;
    153 	int			refcnt;
    154 	char			running;
    155 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    156 	LIST_ENTRY(usbd_pipe)	next;
    157 
    158 	usbd_xfer_handle     intrxfer; /* used for repeating requests */
    159 	char			repeat;
    160 
    161 	/* Filled by HC driver. */
    162 	struct usbd_pipe_methods *methods;
    163 };
    164 
    165 struct usbd_xfer {
    166 	struct usbd_pipe       *pipe;
    167 	void		       *priv;
    168 	void		       *buffer;
    169 	u_int32_t		length;
    170 	u_int32_t		actlen;
    171 	u_int16_t		flags;
    172 	u_int32_t		timeout;
    173 	usbd_status		status;
    174 	usbd_callback		callback;
    175 	__volatile char		done;
    176 
    177 	/* For control pipe */
    178 	usb_device_request_t	request;
    179 
    180 	/* For isoc */
    181 	u_int16_t		*frlengths;
    182 	int			nframes;
    183 
    184 	/* For memory allocation */
    185 	struct usbd_device     *device;
    186 	usb_dma_t		dmabuf;
    187 
    188 	int			rqflags;
    189 #define URQ_REQUEST	0x01
    190 #define URQ_AUTO_DMABUF	0x10
    191 #define URQ_DEV_DMABUF	0x20
    192 
    193 	SIMPLEQ_ENTRY(usbd_xfer) next;
    194 
    195 	void		       *hcpriv; /* private use by the HC driver */
    196 	int			hcprivint; /* ditto */
    197 
    198 #if defined(__FreeBSD__)
    199 	struct callout_handle  timo_handle;
    200 #endif
    201 };
    202 
    203 void usbd_init __P((void));
    204 void usbd_finish __P((void));
    205 
    206 /* Routines from usb_subr.c */
    207 int		usbctlprint __P((void *, const char *));
    208 void		usb_delay_ms __P((usbd_bus_handle, u_int));
    209 void		usbd_devinfo_vp __P((usbd_device_handle, char *, char *));
    210 usbd_status	usbd_reset_port __P((usbd_device_handle dev,
    211 				     int port, usb_port_status_t *ps));
    212 usbd_status	usbd_setup_pipe __P((usbd_device_handle dev,
    213 				     usbd_interface_handle iface,
    214 				     struct usbd_endpoint *,
    215 				     usbd_pipe_handle *pipe));
    216 usbd_status	usbd_new_device __P((device_ptr_t parent,
    217 				     usbd_bus_handle bus, int depth,
    218 				     int lowspeed, int port,
    219 				     struct usbd_port *));
    220 void		usbd_remove_device __P((usbd_device_handle,
    221 					struct usbd_port *));
    222 int		usbd_printBCD __P((char *cp, int bcd));
    223 usbd_status	usbd_fill_iface_data __P((usbd_device_handle dev,
    224 					  int i, int a));
    225 void		usb_free_device __P((usbd_device_handle));
    226 
    227 usbd_status	usb_insert_transfer __P((usbd_xfer_handle xfer));
    228 void		usb_transfer_complete __P((usbd_xfer_handle xfer));
    229 void		usb_disconnect_port __P((struct usbd_port *up, device_ptr_t));
    230 
    231 /* Routines from usb.c */
    232 int		usb_bus_count __P((void));
    233 void		usb_needs_explore __P((usbd_bus_handle));
    234 
    235 #ifdef DIAGNOSTIC
    236 #define SPLUSBCHECK \
    237 	do { int _s = splusb(), _su = splusb(); \
    238 	     extern int cold; \
    239              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    240 				   _s, _su, __FILE__, __LINE__); \
    241 	     splx(_s); \
    242         } while (0)
    243 #else
    244 #define SPLUSBCHECK
    245 #endif
    246 
    247 /* Locator stuff. */
    248 
    249 #if defined(__NetBSD__)
    250 #include "locators.h"
    251 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    252 /* XXX these values are used to statically bind some elements in the USB tree
    253  * to specific driver instances. This should be somehow emulated in FreeBSD
    254  * but can be done later on.
    255  * The values are copied from the files.usb file in the NetBSD sources.
    256  */
    257 #define UHUBCF_PORT_DEFAULT -1
    258 #define UHUBCF_CONFIGURATION_DEFAULT -1
    259 #define UHUBCF_INTERFACE_DEFAULT -1
    260 #define UHUBCF_VENDOR_DEFAULT -1
    261 #define UHUBCF_PRODUCT_DEFAULT -1
    262 #define UHUBCF_RELEASE_DEFAULT -1
    263 #endif
    264 
    265 #if defined (__OpenBSD__)
    266 #define	UHUBCF_PORT		0
    267 #define	UHUBCF_CONFIGURATION	1
    268 #define	UHUBCF_INTERFACE	2
    269 #define	UHUBCF_VENDOR		3
    270 #define	UHUBCF_PRODUCT		4
    271 #define	UHUBCF_RELEASE		5
    272 #endif
    273 
    274 #define	uhubcf_port		cf_loc[UHUBCF_PORT]
    275 #define	uhubcf_configuration	cf_loc[UHUBCF_CONFIGURATION]
    276 #define	uhubcf_interface	cf_loc[UHUBCF_INTERFACE]
    277 #define	uhubcf_vendor		cf_loc[UHUBCF_VENDOR]
    278 #define	uhubcf_product		cf_loc[UHUBCF_PRODUCT]
    279 #define	uhubcf_release		cf_loc[UHUBCF_RELEASE]
    280 #define	UHUB_UNK_PORT		UHUBCF_PORT_DEFAULT /* wildcarded 'port' */
    281 #define	UHUB_UNK_CONFIGURATION	UHUBCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    282 #define	UHUB_UNK_INTERFACE	UHUBCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    283 #define	UHUB_UNK_VENDOR		UHUBCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    284 #define	UHUB_UNK_PRODUCT	UHUBCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    285 #define	UHUB_UNK_RELEASE	UHUBCF_RELEASE_DEFAULT /* wildcarded 'release' */
    286 
    287