xref: /freebsd/sys/dev/usb/usb_dynamic.c (revision ff182db6c889731f8b80d9652ed74d3bac852f84)
102ac6454SAndrew Thompson /* $FreeBSD$ */
202ac6454SAndrew Thompson /*-
302ac6454SAndrew Thompson  * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
402ac6454SAndrew Thompson  *
502ac6454SAndrew Thompson  * Redistribution and use in source and binary forms, with or without
602ac6454SAndrew Thompson  * modification, are permitted provided that the following conditions
702ac6454SAndrew Thompson  * are met:
802ac6454SAndrew Thompson  * 1. Redistributions of source code must retain the above copyright
902ac6454SAndrew Thompson  *    notice, this list of conditions and the following disclaimer.
1002ac6454SAndrew Thompson  * 2. Redistributions in binary form must reproduce the above copyright
1102ac6454SAndrew Thompson  *    notice, this list of conditions and the following disclaimer in the
1202ac6454SAndrew Thompson  *    documentation and/or other materials provided with the distribution.
1302ac6454SAndrew Thompson  *
1402ac6454SAndrew Thompson  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1502ac6454SAndrew Thompson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1602ac6454SAndrew Thompson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1702ac6454SAndrew Thompson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1802ac6454SAndrew Thompson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1902ac6454SAndrew Thompson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2002ac6454SAndrew Thompson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2102ac6454SAndrew Thompson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2202ac6454SAndrew Thompson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2302ac6454SAndrew Thompson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2402ac6454SAndrew Thompson  * SUCH DAMAGE.
2502ac6454SAndrew Thompson  */
2602ac6454SAndrew Thompson 
27d2b99310SHans Petter Selasky #ifdef USB_GLOBAL_INCLUDE_FILE
28d2b99310SHans Petter Selasky #include USB_GLOBAL_INCLUDE_FILE
29d2b99310SHans Petter Selasky #else
30ed6d949aSAndrew Thompson #include <sys/stdint.h>
31ed6d949aSAndrew Thompson #include <sys/stddef.h>
32ed6d949aSAndrew Thompson #include <sys/param.h>
33ed6d949aSAndrew Thompson #include <sys/queue.h>
34ed6d949aSAndrew Thompson #include <sys/types.h>
35ed6d949aSAndrew Thompson #include <sys/systm.h>
36ed6d949aSAndrew Thompson #include <sys/kernel.h>
37ed6d949aSAndrew Thompson #include <sys/bus.h>
38ed6d949aSAndrew Thompson #include <sys/module.h>
39ed6d949aSAndrew Thompson #include <sys/lock.h>
40ed6d949aSAndrew Thompson #include <sys/mutex.h>
41ed6d949aSAndrew Thompson #include <sys/condvar.h>
42ed6d949aSAndrew Thompson #include <sys/sysctl.h>
43ed6d949aSAndrew Thompson #include <sys/sx.h>
44ed6d949aSAndrew Thompson #include <sys/unistd.h>
45ed6d949aSAndrew Thompson #include <sys/callout.h>
46ed6d949aSAndrew Thompson #include <sys/malloc.h>
47ed6d949aSAndrew Thompson #include <sys/priv.h>
48ed6d949aSAndrew Thompson 
4902ac6454SAndrew Thompson #include <dev/usb/usb.h>
50ed6d949aSAndrew Thompson #include <dev/usb/usbdi.h>
5102ac6454SAndrew Thompson 
5202ac6454SAndrew Thompson #include <dev/usb/usb_core.h>
5302ac6454SAndrew Thompson #include <dev/usb/usb_process.h>
5402ac6454SAndrew Thompson #include <dev/usb/usb_device.h>
5502ac6454SAndrew Thompson #include <dev/usb/usb_dynamic.h>
56d2b99310SHans Petter Selasky #endif			/* USB_GLOBAL_INCLUDE_FILE */
5702ac6454SAndrew Thompson 
5802ac6454SAndrew Thompson /* function prototypes */
59a593f6b8SAndrew Thompson static usb_handle_req_t usb_temp_get_desc_w;
60a593f6b8SAndrew Thompson static usb_temp_setup_by_index_t usb_temp_setup_by_index_w;
61a593f6b8SAndrew Thompson static usb_temp_unsetup_t usb_temp_unsetup_w;
623f37fb62SHans Petter Selasky static usb_test_quirk_t usb_test_quirk_w;
63a593f6b8SAndrew Thompson static usb_quirk_ioctl_t usb_quirk_ioctl_w;
6402ac6454SAndrew Thompson 
6502ac6454SAndrew Thompson /* global variables */
66a593f6b8SAndrew Thompson usb_handle_req_t *usb_temp_get_desc_p = &usb_temp_get_desc_w;
67a593f6b8SAndrew Thompson usb_temp_setup_by_index_t *usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w;
68a593f6b8SAndrew Thompson usb_temp_unsetup_t *usb_temp_unsetup_p = &usb_temp_unsetup_w;
69a593f6b8SAndrew Thompson usb_test_quirk_t *usb_test_quirk_p = &usb_test_quirk_w;
70a593f6b8SAndrew Thompson usb_quirk_ioctl_t *usb_quirk_ioctl_p = &usb_quirk_ioctl_w;
71*ff182db6SHans Petter Selasky devclass_t usb_devclass_ptr;
7202ac6454SAndrew Thompson 
73e0a69b51SAndrew Thompson static usb_error_t
74a593f6b8SAndrew Thompson usb_temp_setup_by_index_w(struct usb_device *udev, uint16_t index)
7502ac6454SAndrew Thompson {
7602ac6454SAndrew Thompson 	return (USB_ERR_INVAL);
7702ac6454SAndrew Thompson }
7802ac6454SAndrew Thompson 
793f37fb62SHans Petter Selasky static uint8_t
80a593f6b8SAndrew Thompson usb_test_quirk_w(const struct usbd_lookup_info *info, uint16_t quirk)
8102ac6454SAndrew Thompson {
8202ac6454SAndrew Thompson 	return (0);			/* no match */
8302ac6454SAndrew Thompson }
8402ac6454SAndrew Thompson 
8502ac6454SAndrew Thompson static int
86a593f6b8SAndrew Thompson usb_quirk_ioctl_w(unsigned long cmd, caddr_t data, int fflag, struct thread *td)
8702ac6454SAndrew Thompson {
8802ac6454SAndrew Thompson 	return (ENOIOCTL);
8902ac6454SAndrew Thompson }
9002ac6454SAndrew Thompson 
91e0a69b51SAndrew Thompson static usb_error_t
92a593f6b8SAndrew Thompson usb_temp_get_desc_w(struct usb_device *udev, struct usb_device_request *req, const void **pPtr, uint16_t *pLength)
9302ac6454SAndrew Thompson {
9402ac6454SAndrew Thompson 	/* stall */
95459d369eSAndrew Thompson 	return (USB_ERR_STALLED);
9602ac6454SAndrew Thompson }
9702ac6454SAndrew Thompson 
9802ac6454SAndrew Thompson static void
99a593f6b8SAndrew Thompson usb_temp_unsetup_w(struct usb_device *udev)
10002ac6454SAndrew Thompson {
101a593f6b8SAndrew Thompson 	if (udev->usb_template_ptr) {
10202ac6454SAndrew Thompson 
103a593f6b8SAndrew Thompson 		free(udev->usb_template_ptr, M_USB);
10402ac6454SAndrew Thompson 
105a593f6b8SAndrew Thompson 		udev->usb_template_ptr = NULL;
10602ac6454SAndrew Thompson 	}
10702ac6454SAndrew Thompson }
10802ac6454SAndrew Thompson 
10902ac6454SAndrew Thompson void
110a593f6b8SAndrew Thompson usb_quirk_unload(void *arg)
11102ac6454SAndrew Thompson {
11202ac6454SAndrew Thompson 	/* reset function pointers */
11302ac6454SAndrew Thompson 
114a593f6b8SAndrew Thompson 	usb_test_quirk_p = &usb_test_quirk_w;
115a593f6b8SAndrew Thompson 	usb_quirk_ioctl_p = &usb_quirk_ioctl_w;
11602ac6454SAndrew Thompson 
11702ac6454SAndrew Thompson 	/* wait for CPU to exit the loaded functions, if any */
11802ac6454SAndrew Thompson 
11902ac6454SAndrew Thompson 	/* XXX this is a tradeoff */
12002ac6454SAndrew Thompson 
12102ac6454SAndrew Thompson 	pause("WAIT", hz);
12202ac6454SAndrew Thompson }
12302ac6454SAndrew Thompson 
12402ac6454SAndrew Thompson void
125a593f6b8SAndrew Thompson usb_temp_unload(void *arg)
12602ac6454SAndrew Thompson {
12702ac6454SAndrew Thompson 	/* reset function pointers */
12802ac6454SAndrew Thompson 
129a593f6b8SAndrew Thompson 	usb_temp_get_desc_p = &usb_temp_get_desc_w;
130a593f6b8SAndrew Thompson 	usb_temp_setup_by_index_p = &usb_temp_setup_by_index_w;
131a593f6b8SAndrew Thompson 	usb_temp_unsetup_p = &usb_temp_unsetup_w;
13202ac6454SAndrew Thompson 
13302ac6454SAndrew Thompson 	/* wait for CPU to exit the loaded functions, if any */
13402ac6454SAndrew Thompson 
13502ac6454SAndrew Thompson 	/* XXX this is a tradeoff */
13602ac6454SAndrew Thompson 
13702ac6454SAndrew Thompson 	pause("WAIT", hz);
13802ac6454SAndrew Thompson }
13902ac6454SAndrew Thompson 
14002ac6454SAndrew Thompson void
141a593f6b8SAndrew Thompson usb_bus_unload(void *arg)
14202ac6454SAndrew Thompson {
14302ac6454SAndrew Thompson 	/* reset function pointers */
14402ac6454SAndrew Thompson 
145a593f6b8SAndrew Thompson 	usb_devclass_ptr = NULL;
14602ac6454SAndrew Thompson 
14702ac6454SAndrew Thompson 	/* wait for CPU to exit the loaded functions, if any */
14802ac6454SAndrew Thompson 
14902ac6454SAndrew Thompson 	/* XXX this is a tradeoff */
15002ac6454SAndrew Thompson 
15102ac6454SAndrew Thompson 	pause("WAIT", hz);
15202ac6454SAndrew Thompson }
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