xref: /netbsd-src/sys/dev/usb/usbdivar.h (revision 4472dbe5e3bd91ef2540bada7a7ca7384627ff9b)
1 /*	$NetBSD: usbdivar.h,v 1.57 2000/06/01 14:29:03 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@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)(struct usbd_bus *);
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_STR { "unknown", "pre 1.0", "1.0", "1.1" }
117 
118 #if defined(__NetBSD__) || defined(__OpenBSD__)
119 	bus_dma_tag_t		dmatag;	/* DMA tag */
120 #endif
121 };
122 
123 struct usbd_device {
124 	struct usbd_bus	       *bus;           /* our controller */
125 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
126 	u_int8_t		address;       /* device addess */
127 	u_int8_t		config;	       /* current configuration # */
128 	u_int8_t		depth;         /* distance from root hub */
129 	u_int8_t		lowspeed;      /* lowspeed flag */
130 	u_int8_t		self_powered;  /* flag for self powered */
131 	u_int16_t		power;         /* mA the device uses */
132 	int16_t			langid;	       /* language for strings */
133 #define USBD_NOLANG (-1)
134 	usb_event_cookie_t	cookie;	       /* unique connection id */
135 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
136 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
137 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
138 	struct usbd_interface  *ifaces;        /* array of all interfaces */
139 	usb_device_descriptor_t ddesc;         /* device descriptor */
140 	usb_config_descriptor_t *cdesc;	       /* full config descr */
141 	struct usbd_quirks     *quirks;        /* device quirks, always set */
142 	struct usbd_hub	       *hub;           /* only if this is a hub */
143 	device_ptr_t	       *subdevs;       /* sub-devices, 0 terminated */
144 };
145 
146 struct usbd_interface {
147 	struct usbd_device     *device;
148 	usb_interface_descriptor_t *idesc;
149 	int			index;
150 	int			altindex;
151 	struct usbd_endpoint   *endpoints;
152 	void		       *priv;
153 	LIST_HEAD(, usbd_pipe)	pipes;
154 };
155 
156 struct usbd_pipe {
157 	struct usbd_interface  *iface;
158 	struct usbd_device     *device;
159 	struct usbd_endpoint   *endpoint;
160 	int			refcnt;
161 	char			running;
162 	char			aborting;
163 	SIMPLEQ_HEAD(, usbd_xfer) queue;
164 	LIST_ENTRY(usbd_pipe)	next;
165 
166 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
167 	char			repeat;
168 	int			interval;
169 
170 	usb_callout_t		abort_handle;
171 
172 	/* Filled by HC driver. */
173 	struct usbd_pipe_methods *methods;
174 };
175 
176 struct usbd_xfer {
177 	struct usbd_pipe       *pipe;
178 	void		       *priv;
179 	void		       *buffer;
180 	u_int32_t		length;
181 	u_int32_t		actlen;
182 	u_int16_t		flags;
183 	u_int32_t		timeout;
184 	usbd_status		status;
185 	usbd_callback		callback;
186 	__volatile char		done;
187 #ifdef DIAGNOSTIC
188 	u_int32_t		busy_free;
189 #define XFER_FREE 0x46524545
190 #define XFER_BUSY 0x42555357
191 #endif
192 
193 	/* For control pipe */
194 	usb_device_request_t	request;
195 
196 	/* For isoc */
197 	u_int16_t		*frlengths;
198 	int			nframes;
199 
200 	/* For memory allocation */
201 	struct usbd_device     *device;
202 	usb_dma_t		dmabuf;
203 
204 	int			rqflags;
205 #define URQ_REQUEST	0x01
206 #define URQ_AUTO_DMABUF	0x10
207 #define URQ_DEV_DMABUF	0x20
208 
209 	SIMPLEQ_ENTRY(usbd_xfer) next;
210 
211 	void		       *hcpriv; /* private use by the HC driver */
212 
213 	usb_callout_t		timeout_handle;
214 };
215 
216 void usbd_init(void);
217 void usbd_finish(void);
218 
219 /* Routines from usb_subr.c */
220 int		usbctlprint(void *, const char *);
221 void		usb_delay_ms(usbd_bus_handle, u_int);
222 void		usbd_devinfo_vp(usbd_device_handle, char *, char *);
223 usbd_status	usbd_reset_port(usbd_device_handle dev,
224 				int port, usb_port_status_t *ps);
225 usbd_status	usbd_setup_pipe(usbd_device_handle dev,
226 				usbd_interface_handle iface,
227 				struct usbd_endpoint *, int,
228 				usbd_pipe_handle *pipe);
229 usbd_status	usbd_new_device(device_ptr_t parent,
230 				usbd_bus_handle bus, int depth,
231 				int lowspeed, int port,
232 				struct usbd_port *);
233 void		usbd_remove_device(usbd_device_handle, struct usbd_port *);
234 int		usbd_printBCD(char *cp, int bcd);
235 usbd_status	usbd_fill_iface_data(usbd_device_handle dev, int i, int a);
236 void		usb_free_device(usbd_device_handle);
237 
238 usbd_status	usb_insert_transfer(usbd_xfer_handle xfer);
239 void		usb_transfer_complete(usbd_xfer_handle xfer);
240 void		usb_disconnect_port(struct usbd_port *up, device_ptr_t);
241 
242 /* Routines from usb.c */
243 void		usb_needs_explore(usbd_bus_handle);
244 void		usb_schedsoftintr(struct usbd_bus *);
245 
246 #ifdef DIAGNOSTIC
247 #define SPLUSBCHECK \
248 	do { int _s = splusb(), _su = splusb(); \
249              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
250 				   _s, _su, __FILE__, __LINE__); \
251 	     splx(_s); \
252         } while (0)
253 #else
254 #define SPLUSBCHECK
255 #endif
256 
257 /* Locator stuff. */
258 
259 #if defined(__NetBSD__)
260 #include "locators.h"
261 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
262 /* XXX these values are used to statically bind some elements in the USB tree
263  * to specific driver instances. This should be somehow emulated in FreeBSD
264  * but can be done later on.
265  * The values are copied from the files.usb file in the NetBSD sources.
266  */
267 #define UHUBCF_PORT_DEFAULT -1
268 #define UHUBCF_CONFIGURATION_DEFAULT -1
269 #define UHUBCF_INTERFACE_DEFAULT -1
270 #define UHUBCF_VENDOR_DEFAULT -1
271 #define UHUBCF_PRODUCT_DEFAULT -1
272 #define UHUBCF_RELEASE_DEFAULT -1
273 #endif
274 
275 #if defined (__OpenBSD__)
276 #define	UHUBCF_PORT		0
277 #define	UHUBCF_CONFIGURATION	1
278 #define	UHUBCF_INTERFACE	2
279 #define	UHUBCF_VENDOR		3
280 #define	UHUBCF_PRODUCT		4
281 #define	UHUBCF_RELEASE		5
282 #endif
283 
284 #define	uhubcf_port		cf_loc[UHUBCF_PORT]
285 #define	uhubcf_configuration	cf_loc[UHUBCF_CONFIGURATION]
286 #define	uhubcf_interface	cf_loc[UHUBCF_INTERFACE]
287 #define	uhubcf_vendor		cf_loc[UHUBCF_VENDOR]
288 #define	uhubcf_product		cf_loc[UHUBCF_PRODUCT]
289 #define	uhubcf_release		cf_loc[UHUBCF_RELEASE]
290 #define	UHUB_UNK_PORT		UHUBCF_PORT_DEFAULT /* wildcarded 'port' */
291 #define	UHUB_UNK_CONFIGURATION	UHUBCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
292 #define	UHUB_UNK_INTERFACE	UHUBCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
293 #define	UHUB_UNK_VENDOR		UHUBCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
294 #define	UHUB_UNK_PRODUCT	UHUBCF_PRODUCT_DEFAULT /* wildcarded 'product' */
295 #define	UHUB_UNK_RELEASE	UHUBCF_RELEASE_DEFAULT /* wildcarded 'release' */
296 
297