Home | History | Annotate | Line # | Download | only in usb
usbdivar.h revision 1.52
      1 /*	$NetBSD: usbdivar.h,v 1.52 2000/03/25 18:02:33 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 #include <sys/callout.h>
     42 
     43 /* From usb_mem.h */
     44 DECLARE_USB_DMA_T;
     45 
     46 struct usbd_xfer;
     47 struct usbd_pipe;
     48 
     49 struct usbd_endpoint {
     50 	usb_endpoint_descriptor_t *edesc;
     51 	int			refcnt;
     52 };
     53 
     54 struct usbd_bus_methods {
     55 	usbd_status	      (*open_pipe)__P((struct usbd_pipe *pipe));
     56 	void		      (*soft_intr)__P((struct usbd_bus *));
     57 	void		      (*do_poll)__P((struct usbd_bus *));
     58 	usbd_status	      (*allocm)__P((struct usbd_bus *, usb_dma_t *,
     59 					    u_int32_t bufsize));
     60 	void		      (*freem)__P((struct usbd_bus *, usb_dma_t *));
     61 	struct usbd_xfer *    (*allocx)__P((struct usbd_bus *));
     62 	void		      (*freex)__P((struct usbd_bus *,
     63 					   struct usbd_xfer *));
     64 };
     65 
     66 struct usbd_pipe_methods {
     67 	usbd_status	      (*transfer)__P((usbd_xfer_handle xfer));
     68 	usbd_status	      (*start)__P((usbd_xfer_handle xfer));
     69 	void		      (*abort)__P((usbd_xfer_handle xfer));
     70 	void		      (*close)__P((usbd_pipe_handle pipe));
     71 	void		      (*cleartoggle)__P((usbd_pipe_handle pipe));
     72 	void		      (*done)__P((usbd_xfer_handle xfer));
     73 };
     74 
     75 struct usbd_port {
     76 	usb_port_status_t	status;
     77 	u_int16_t		power;	/* mA of current on port */
     78 	u_int8_t		portno;
     79 	u_int8_t		restartcnt;
     80 #define USBD_RESTART_MAX 5
     81 	struct usbd_device     *device;
     82 	struct usbd_device     *parent;	/* The ports hub */
     83 };
     84 
     85 struct usbd_hub {
     86 	usbd_status	      (*explore)__P((usbd_device_handle hub));
     87 	void		       *hubsoftc;
     88 	usb_hub_descriptor_t	hubdesc;
     89 	struct usbd_port        ports[1];
     90 };
     91 
     92 struct usb_softc;
     93 
     94 /*****/
     95 
     96 struct usbd_bus {
     97 	/* Filled by HC driver */
     98 	USBBASEDEVICE		bdev; /* base device, host adapter */
     99 	struct usbd_bus_methods	*methods;
    100 	u_int32_t		pipe_size; /* size of a pipe struct */
    101 	/* Filled by usb driver */
    102 	struct usbd_device     *root_hub;
    103 	usbd_device_handle	devices[USB_MAX_DEVICES];
    104 	char			needs_explore;/* a hub a signalled a change */
    105 	char			use_polling;
    106 	struct usb_softc       *usbctl;
    107 	struct usb_device_stats	stats;
    108 	int 			intr_context;
    109 	u_int			no_intrs;
    110 	int			usbrev;	/* USB revision */
    111 #define USBREV_UNKNOWN	0
    112 #define USBREV_PRE_1_0	1
    113 #define USBREV_1_0	2
    114 #define USBREV_1_1	3
    115 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1" }
    116 
    117 #if defined(__NetBSD__) || defined(__OpenBSD__)
    118 	bus_dma_tag_t		dmatag;	/* DMA tag */
    119 #endif
    120 };
    121 
    122 struct usbd_device {
    123 	struct usbd_bus	       *bus;           /* our controller */
    124 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    125 	u_int8_t		address;       /* device addess */
    126 	u_int8_t		config;	       /* current configuration # */
    127 	u_int8_t		depth;         /* distance from root hub */
    128 	u_int8_t		lowspeed;      /* lowspeed flag */
    129 	u_int8_t		self_powered;  /* flag for self powered */
    130 	u_int16_t		power;         /* mA the device uses */
    131 	int16_t			langid;	       /* language for strings */
    132 #define USBD_NOLANG (-1)
    133 	usb_event_cookie_t	cookie;	       /* unique connection id */
    134 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    135 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    136 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    137 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    138 	usb_device_descriptor_t ddesc;         /* device descriptor */
    139 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    140 	struct usbd_quirks     *quirks;        /* device quirks, always set */
    141 	struct usbd_hub	       *hub;           /* only if this is a hub */
    142 	device_ptr_t	       *subdevs;       /* sub-devices, 0 terminated */
    143 };
    144 
    145 struct usbd_interface {
    146 	struct usbd_device     *device;
    147 	usb_interface_descriptor_t *idesc;
    148 	int			index;
    149 	int			altindex;
    150 	struct usbd_endpoint   *endpoints;
    151 	void		       *priv;
    152 	LIST_HEAD(, usbd_pipe)	pipes;
    153 };
    154 
    155 struct usbd_pipe {
    156 	struct usbd_interface  *iface;
    157 	struct usbd_device     *device;
    158 	struct usbd_endpoint   *endpoint;
    159 	int			refcnt;
    160 	char			running;
    161 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    162 	LIST_ENTRY(usbd_pipe)	next;
    163 
    164 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
    165 	char			repeat;
    166 	int			interval;
    167 
    168 	usb_callout_t		abort_handle;
    169 
    170 	/* Filled by HC driver. */
    171 	struct usbd_pipe_methods *methods;
    172 };
    173 
    174 struct usbd_xfer {
    175 	struct usbd_pipe       *pipe;
    176 	void		       *priv;
    177 	void		       *buffer;
    178 	u_int32_t		length;
    179 	u_int32_t		actlen;
    180 	u_int16_t		flags;
    181 	u_int32_t		timeout;
    182 	usbd_status		status;
    183 	usbd_callback		callback;
    184 	__volatile char		done;
    185 #ifdef DIAGNOSTIC
    186 	u_int32_t		busy_free;
    187 #define XFER_FREE 0x46524545
    188 #define XFER_BUSY 0x42555357
    189 #endif
    190 
    191 	/* For control pipe */
    192 	usb_device_request_t	request;
    193 
    194 	/* For isoc */
    195 	u_int16_t		*frlengths;
    196 	int			nframes;
    197 
    198 	/* For memory allocation */
    199 	struct usbd_device     *device;
    200 	usb_dma_t		dmabuf;
    201 
    202 	int			rqflags;
    203 #define URQ_REQUEST	0x01
    204 #define URQ_AUTO_DMABUF	0x10
    205 #define URQ_DEV_DMABUF	0x20
    206 
    207 	SIMPLEQ_ENTRY(usbd_xfer) next;
    208 
    209 	void		       *hcpriv; /* private use by the HC driver */
    210 
    211 	usb_callout_t		timeout_handle;
    212 };
    213 
    214 void usbd_init __P((void));
    215 void usbd_finish __P((void));
    216 
    217 /* Routines from usb_subr.c */
    218 int		usbctlprint __P((void *, const char *));
    219 void		usb_delay_ms __P((usbd_bus_handle, u_int));
    220 void		usbd_devinfo_vp __P((usbd_device_handle, char *, char *));
    221 usbd_status	usbd_reset_port __P((usbd_device_handle dev,
    222 				     int port, usb_port_status_t *ps));
    223 usbd_status	usbd_setup_pipe __P((usbd_device_handle dev,
    224 				     usbd_interface_handle iface,
    225 				     struct usbd_endpoint *, int,
    226 				     usbd_pipe_handle *pipe));
    227 usbd_status	usbd_new_device __P((device_ptr_t parent,
    228 				     usbd_bus_handle bus, int depth,
    229 				     int lowspeed, int port,
    230 				     struct usbd_port *));
    231 void		usbd_remove_device __P((usbd_device_handle,
    232 					struct usbd_port *));
    233 int		usbd_printBCD __P((char *cp, int bcd));
    234 usbd_status	usbd_fill_iface_data __P((usbd_device_handle dev,
    235 					  int i, int a));
    236 void		usb_free_device __P((usbd_device_handle));
    237 
    238 usbd_status	usb_insert_transfer __P((usbd_xfer_handle xfer));
    239 void		usb_transfer_complete __P((usbd_xfer_handle xfer));
    240 void		usb_disconnect_port __P((struct usbd_port *up, device_ptr_t));
    241 
    242 /* Routines from usb.c */
    243 void		usb_needs_explore __P((usbd_bus_handle));
    244 void		usb_schedsoftintr __P((struct usbd_bus *));
    245 
    246 #ifdef DIAGNOSTIC
    247 #define SPLUSBCHECK \
    248 	do { int _s = splusb(), _su = splusb(); \
    249 	     extern int cold; \
    250              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    251 				   _s, _su, __FILE__, __LINE__); \
    252 	     splx(_s); \
    253         } while (0)
    254 #else
    255 #define SPLUSBCHECK
    256 #endif
    257 
    258 /* Locator stuff. */
    259 
    260 #if defined(__NetBSD__)
    261 #include "locators.h"
    262 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    263 /* XXX these values are used to statically bind some elements in the USB tree
    264  * to specific driver instances. This should be somehow emulated in FreeBSD
    265  * but can be done later on.
    266  * The values are copied from the files.usb file in the NetBSD sources.
    267  */
    268 #define UHUBCF_PORT_DEFAULT -1
    269 #define UHUBCF_CONFIGURATION_DEFAULT -1
    270 #define UHUBCF_INTERFACE_DEFAULT -1
    271 #define UHUBCF_VENDOR_DEFAULT -1
    272 #define UHUBCF_PRODUCT_DEFAULT -1
    273 #define UHUBCF_RELEASE_DEFAULT -1
    274 #endif
    275 
    276 #if defined (__OpenBSD__)
    277 #define	UHUBCF_PORT		0
    278 #define	UHUBCF_CONFIGURATION	1
    279 #define	UHUBCF_INTERFACE	2
    280 #define	UHUBCF_VENDOR		3
    281 #define	UHUBCF_PRODUCT		4
    282 #define	UHUBCF_RELEASE		5
    283 #endif
    284 
    285 #define	uhubcf_port		cf_loc[UHUBCF_PORT]
    286 #define	uhubcf_configuration	cf_loc[UHUBCF_CONFIGURATION]
    287 #define	uhubcf_interface	cf_loc[UHUBCF_INTERFACE]
    288 #define	uhubcf_vendor		cf_loc[UHUBCF_VENDOR]
    289 #define	uhubcf_product		cf_loc[UHUBCF_PRODUCT]
    290 #define	uhubcf_release		cf_loc[UHUBCF_RELEASE]
    291 #define	UHUB_UNK_PORT		UHUBCF_PORT_DEFAULT /* wildcarded 'port' */
    292 #define	UHUB_UNK_CONFIGURATION	UHUBCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    293 #define	UHUB_UNK_INTERFACE	UHUBCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    294 #define	UHUB_UNK_VENDOR		UHUBCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    295 #define	UHUB_UNK_PRODUCT	UHUBCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    296 #define	UHUB_UNK_RELEASE	UHUBCF_RELEASE_DEFAULT /* wildcarded 'release' */
    297 
    298