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      1 /*	$NetBSD: usbdi.h,v 1.108 2022/08/20 11:32:20 riastradh Exp $	*/
      2 /*	$FreeBSD: src/sys/dev/usb/usbdi.h,v 1.18 1999/11/17 22:33:49 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  *
     21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _USBDI_H_
     35 #define _USBDI_H_
     36 
     37 #include <sys/types.h>
     38 
     39 #include <dev/usb/usb.h>
     40 
     41 struct usbd_bus;
     42 struct usbd_device;
     43 struct usbd_interface;
     44 struct usbd_pipe;
     45 struct usbd_xfer;
     46 
     47 typedef enum {		/* keep in sync with usbd_error_strs */
     48 	USBD_NORMAL_COMPLETION = 0, /* must be 0 */
     49 	USBD_IN_PROGRESS,	/* 1 */
     50 	/* errors */
     51 	USBD_PENDING_REQUESTS,	/* 2 */
     52 	USBD_NOT_STARTED,	/* 3 */
     53 	USBD_INVAL,		/* 4 */
     54 	USBD_NOMEM,		/* 5 */
     55 	USBD_CANCELLED,		/* 6 */
     56 	USBD_BAD_ADDRESS,	/* 7 */
     57 	USBD_IN_USE,		/* 8 */
     58 	USBD_NO_ADDR,		/* 9 */
     59 	USBD_SET_ADDR_FAILED,	/* 10 */
     60 	USBD_NO_POWER,		/* 11 */
     61 	USBD_TOO_DEEP,		/* 12 */
     62 	USBD_IOERROR,		/* 13 */
     63 	USBD_NOT_CONFIGURED,	/* 14 */
     64 	USBD_TIMEOUT,		/* 15 */
     65 	USBD_SHORT_XFER,	/* 16 */
     66 	USBD_STALLED,		/* 17 */
     67 	USBD_INTERRUPTED,	/* 18 */
     68 
     69 	USBD_ERROR_MAX		/* must be last */
     70 } usbd_status;
     71 
     72 typedef void (*usbd_callback)(struct usbd_xfer *, void *, usbd_status);
     73 
     74 /* Use default (specified by ep. desc.) interval on interrupt pipe */
     75 #define USBD_DEFAULT_INTERVAL	(-1)
     76 
     77 /* Open flags */
     78 #define USBD_EXCLUSIVE_USE	0x01
     79 #define USBD_MPSAFE		0x80
     80 
     81 /* Request flags */
     82 #define USBD_SYNCHRONOUS	0x02	/* wait for completion */
     83 /* in usb.h #define USBD_SHORT_XFER_OK	0x04*/	/* allow short reads */
     84 #define USBD_FORCE_SHORT_XFER	0x08	/* force last short packet on write */
     85 #define USBD_SYNCHRONOUS_SIG	0x10	/* if waiting for completion,
     86 					 * also take signals */
     87 
     88 #define USBD_NO_TIMEOUT 0
     89 #define USBD_DEFAULT_TIMEOUT 5000 /* ms = 5 s */
     90 #define	USBD_CONFIG_TIMEOUT  (3*USBD_DEFAULT_TIMEOUT)
     91 
     92 #define DEVINFOSIZE 1024
     93 
     94 usbd_status usbd_open_pipe_intr(struct usbd_interface *, uint8_t, uint8_t,
     95     struct usbd_pipe **, void *, void *, uint32_t, usbd_callback, int);
     96 usbd_status usbd_open_pipe(struct usbd_interface *, uint8_t, uint8_t,
     97      struct usbd_pipe **);
     98 void usbd_close_pipe(struct usbd_pipe *);
     99 
    100 usbd_status usbd_transfer(struct usbd_xfer *);
    101 
    102 void *usbd_get_buffer(struct usbd_xfer *);
    103 struct usbd_pipe *usbd_get_pipe0(struct usbd_device *);
    104 
    105 int usbd_create_xfer(struct usbd_pipe *, size_t, unsigned int, unsigned int,
    106     struct usbd_xfer **);
    107 void usbd_destroy_xfer(struct usbd_xfer *);
    108 
    109 void usbd_setup_xfer(struct usbd_xfer *, void *, void *,
    110     uint32_t, uint16_t, uint32_t, usbd_callback);
    111 
    112 void usbd_setup_default_xfer(struct usbd_xfer *, struct usbd_device *,
    113     void *, uint32_t, usb_device_request_t *, void *,
    114     uint32_t, uint16_t, usbd_callback);
    115 
    116 void usbd_setup_isoc_xfer(struct usbd_xfer *, void *, uint16_t *,
    117     uint32_t, uint16_t, usbd_callback);
    118 
    119 void usbd_get_xfer_status(struct usbd_xfer *, void **,
    120     void **, uint32_t *, usbd_status *);
    121 
    122 usb_endpoint_descriptor_t *usbd_interface2endpoint_descriptor
    123     (struct usbd_interface *, uint8_t);
    124 
    125 void usbd_abort_pipe(struct usbd_pipe *);
    126 void usbd_abort_default_pipe(struct usbd_device *);
    127 
    128 void usbd_suspend_pipe(struct usbd_pipe *);
    129 void usbd_resume_pipe(struct usbd_pipe *);
    130 
    131 usbd_status usbd_clear_endpoint_stall(struct usbd_pipe *);
    132 void usbd_clear_endpoint_stall_async(struct usbd_pipe *);
    133 
    134 void usbd_clear_endpoint_toggle(struct usbd_pipe *);
    135 usbd_status usbd_endpoint_count(struct usbd_interface *, uint8_t *);
    136 
    137 usbd_status usbd_interface_count(struct usbd_device *, uint8_t *);
    138 
    139 void usbd_interface2device_handle(struct usbd_interface *, struct usbd_device **);
    140 usbd_status usbd_device2interface_handle(struct usbd_device *,
    141     uint8_t, struct usbd_interface **);
    142 
    143 struct usbd_device *usbd_pipe2device_handle(struct usbd_pipe *);
    144 
    145 usbd_status usbd_sync_transfer(struct usbd_xfer *);
    146 usbd_status usbd_sync_transfer_sig(struct usbd_xfer *);
    147 
    148 usbd_status usbd_do_request(struct usbd_device *, usb_device_request_t *, void *);
    149 usbd_status usbd_do_request_flags(struct usbd_device *, usb_device_request_t *,
    150     void *, uint16_t, int *, uint32_t);
    151 usbd_status usbd_do_request_len(struct usbd_device *dev,
    152     usb_device_request_t *req, size_t len, void *data, uint16_t flags,
    153     int *actlen, uint32_t timeout);
    154 
    155 usb_interface_descriptor_t *
    156     usbd_get_interface_descriptor(struct usbd_interface *);
    157 usb_endpoint_descriptor_t *
    158     usbd_get_endpoint_descriptor(struct usbd_interface *, uint8_t);
    159 
    160 usb_config_descriptor_t *usbd_get_config_descriptor(struct usbd_device *);
    161 usb_device_descriptor_t *usbd_get_device_descriptor(struct usbd_device *);
    162 
    163 usbd_status usbd_set_interface(struct usbd_interface *, int);
    164 usbd_status usbd_get_interface(struct usbd_interface *, uint8_t *);
    165 
    166 int usbd_get_no_alts(usb_config_descriptor_t *, int);
    167 
    168 void usbd_fill_deviceinfo(struct usbd_device *, struct usb_device_info *, int);
    169 int usbd_get_interface_altindex(struct usbd_interface *);
    170 
    171 usb_interface_descriptor_t *usbd_find_idesc(usb_config_descriptor_t *,
    172     int, int);
    173 usb_endpoint_descriptor_t *usbd_find_edesc(usb_config_descriptor_t *,
    174     int, int, int);
    175 
    176 void usbd_dopoll(struct usbd_interface *);
    177 void usbd_set_polling(struct usbd_device *, int);
    178 
    179 const char *usbd_errstr(usbd_status);
    180 
    181 void usbd_add_dev_event(int, struct usbd_device *);
    182 void usbd_add_drv_event(int, struct usbd_device *, device_t);
    183 
    184 char *usbd_devinfo_alloc(struct usbd_device *, int);
    185 void usbd_devinfo_free(char *);
    186 
    187 const struct usbd_quirks *usbd_get_quirks(struct usbd_device *);
    188 
    189 usbd_status usbd_reload_device_desc(struct usbd_device *);
    190 
    191 int usbd_ratecheck(struct timeval *);
    192 
    193 usbd_status usbd_get_string(struct usbd_device *, int, char *);
    194 usbd_status usbd_get_string0(struct usbd_device *, int, char *, int);
    195 
    196 /* For use by HCI drivers, not USB device drivers */
    197 void usbd_xfer_schedule_timeout(struct usbd_xfer *);
    198 bool usbd_xfer_trycomplete(struct usbd_xfer *);
    199 void usbd_xfer_abort(struct usbd_xfer *);
    200 
    201 /* Used to clear endpoint stalls from the softint */
    202 void usbd_clear_endpoint_stall_task(void *);
    203 
    204 /*
    205  * The usb_task structs form a queue of things to run in the USB event
    206  * thread.  Normally this is just device discovery when a connect/disconnect
    207  * has been detected.  But it may also be used by drivers that need to
    208  * perform (short) tasks that must have a process context.
    209  */
    210 struct usb_task {
    211 	TAILQ_ENTRY(usb_task) next;
    212 	void (*fun)(void *);
    213 	void *arg;
    214 	volatile unsigned queue;
    215 	int flags;
    216 };
    217 #define	USB_TASKQ_HC		0
    218 #define	USB_TASKQ_DRIVER	1
    219 #define	USB_NUM_TASKQS		2
    220 #define	USB_TASKQ_NAMES		{"usbtask-hc", "usbtask-dr"}
    221 #define	USB_TASKQ_MPSAFE	0x80
    222 
    223 void usb_add_task(struct usbd_device *, struct usb_task *, int);
    224 bool usb_rem_task(struct usbd_device *, struct usb_task *);
    225 bool usb_rem_task_wait(struct usbd_device *, struct usb_task *, int,
    226     kmutex_t *);
    227 bool usb_task_pending(struct usbd_device *, struct usb_task *);
    228 #define usb_init_task(t, f, a, fl) ((t)->fun = (f), (t)->arg = (a), (t)->queue = USB_NUM_TASKQS, (t)->flags = (fl))
    229 
    230 bool usb_in_event_thread(device_t);
    231 
    232 struct usb_devno {
    233 	uint16_t ud_vendor;
    234 	uint16_t ud_product;
    235 };
    236 const struct usb_devno *usb_match_device(const struct usb_devno *,
    237 	u_int, u_int, uint16_t, uint16_t);
    238 #define usb_lookup(tbl, vendor, product) \
    239 	usb_match_device((const struct usb_devno *)(tbl), sizeof(tbl) / sizeof((tbl)[0]), sizeof((tbl)[0]), (vendor), (product))
    240 #define	USB_PRODUCT_ANY		0xffff
    241 
    242 /* compat callbacks */
    243 void usbd_devinfo_vp(struct usbd_device *, char *, size_t, char *, size_t,
    244     int, int);
    245 int usbd_printBCD(char *, size_t, int);
    246 
    247 
    248 /* NetBSD attachment information */
    249 
    250 /* Attach data */
    251 struct usb_attach_arg {
    252 	int			uaa_port;
    253 	int			uaa_vendor;
    254 	int			uaa_product;
    255 	int			uaa_release;
    256 	struct usbd_device *	uaa_device;	/* current device */
    257 	int			uaa_class;
    258 	int			uaa_subclass;
    259 	int			uaa_proto;
    260 	int			uaa_usegeneric;
    261 };
    262 
    263 struct usbif_attach_arg {
    264 	int			uiaa_port;
    265 	int			uiaa_configno;
    266 	int			uiaa_ifaceno;
    267 	int			uiaa_vendor;
    268 	int			uiaa_product;
    269 	int			uiaa_release;
    270 	struct usbd_device *	uiaa_device;	/* current device */
    271 
    272 	struct usbd_interface *	uiaa_iface;	/* current interface */
    273 	int			uiaa_class;
    274 	int			uiaa_subclass;
    275 	int			uiaa_proto;
    276 
    277 	/* XXX need accounting for interfaces not matched to */
    278 
    279 	struct usbd_interface **uiaa_ifaces;	/* all interfaces */
    280 	int			uiaa_nifaces;	/* number of interfaces */
    281 };
    282 
    283 /* Match codes. */
    284 #define UMATCH_HIGHEST					15
    285 /* First five codes is for a whole device. */
    286 #define UMATCH_VENDOR_PRODUCT_REV			14
    287 #define UMATCH_VENDOR_PRODUCT				13
    288 #define UMATCH_VENDOR_DEVCLASS_DEVPROTO			12
    289 #define UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO		11
    290 #define UMATCH_DEVCLASS_DEVSUBCLASS			10
    291 /* Next six codes are for interfaces. */
    292 #define UMATCH_VENDOR_PRODUCT_REV_CONF_IFACE		 9
    293 #define UMATCH_VENDOR_PRODUCT_CONF_IFACE		 8
    294 #define UMATCH_VENDOR_IFACESUBCLASS_IFACEPROTO		 7
    295 #define UMATCH_VENDOR_IFACESUBCLASS			 6
    296 #define UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO	 5
    297 #define UMATCH_IFACECLASS_IFACESUBCLASS			 4
    298 #define UMATCH_IFACECLASS				 3
    299 #define UMATCH_IFACECLASS_GENERIC			 2
    300 /* Generic driver */
    301 #define UMATCH_GENERIC					 1
    302 /* No match */
    303 #define UMATCH_NONE					 0
    304 
    305 
    306 /*
    307  * IPL_USB is defined as IPL_VM for drivers that have not been made MP safe.
    308  * IPL_VM (currently) takes the kernel lock.
    309  *
    310  * Eventually, IPL_USB can/should be changed
    311  */
    312 #define IPL_USB IPL_VM
    313 #define splhardusb splvm
    314 
    315 #define SOFTINT_USB SOFTINT_SERIAL
    316 #define IPL_SOFTUSB IPL_SOFTSERIAL
    317 #define splusb splsoftserial
    318 
    319 #endif /* _USBDI_H_ */
    320