[qemu.git] / hw / usb / host-legacy.c

/*
 * Linux host USB redirector
 *
 * Copyright (c) 2005 Fabrice Bellard
 *
 * Copyright (c) 2008 Max Krasnyansky
 *      Support for host device auto connect & disconnect
 *      Major rewrite to support fully async operation
 *
 * Copyright 2008 TJ <linux@tjworld.net>
 *      Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition
 *      to the legacy /proc/bus/usb USB device discovery and handling
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "qemu-common.h"
#include "hw/usb.h"
#include "hw/usb/host.h"

/*
 * Autoconnect filter
 * Format:
 *    auto:bus:dev[:vid:pid]
 *    auto:bus.dev[:vid:pid]
 *
 *    bus  - bus number    (dec, * means any)
 *    dev  - device number (dec, * means any)
 *    vid  - vendor id     (hex, * means any)
 *    pid  - product id    (hex, * means any)
 *
 *    See 'lsusb' output.
 */
static int parse_filter(const char *spec, struct USBAutoFilter *f)
{
    enum { BUS, DEV, VID, PID, DONE };
    const char *p = spec;
    int i;

    f->bus_num    = 0;
    f->addr       = 0;
    f->vendor_id  = 0;
    f->product_id = 0;

    for (i = BUS; i < DONE; i++) {
        p = strpbrk(p, ":.");
        if (!p) {
            break;
        }
        p++;

        if (*p == '*') {
            continue;
        }
        switch (i) {
        case BUS:
            f->bus_num = strtol(p, NULL, 10);
            break;
        case DEV:
            f->addr    = strtol(p, NULL, 10);
            break;
        case VID:
            f->vendor_id  = strtol(p, NULL, 16);
            break;
        case PID:
            f->product_id = strtol(p, NULL, 16);
            break;
        }
    }

    if (i < DEV) {
        fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
        return -1;
    }

    return 0;
}

USBDevice *usb_host_device_open(USBBus *bus, const char *devname)
{
    struct USBAutoFilter filter;
    USBDevice *dev;
    char *p;

    dev = usb_create(bus, "usb-host");

    if (strstr(devname, "auto:")) {
        if (parse_filter(devname, &filter) < 0) {
            goto fail;
        }
    } else {
        p = strchr(devname, '.');
        if (p) {
            filter.bus_num    = strtoul(devname, NULL, 0);
            filter.addr       = strtoul(p + 1, NULL, 0);
            filter.vendor_id  = 0;
            filter.product_id = 0;
        } else {
            p = strchr(devname, ':');
            if (p) {
                filter.bus_num    = 0;
                filter.addr       = 0;
                filter.vendor_id  = strtoul(devname, NULL, 16);
                filter.product_id = strtoul(p + 1, NULL, 16);
            } else {
                goto fail;
            }
        }
    }

    qdev_prop_set_uint32(&dev->qdev, "hostbus",   filter.bus_num);
    qdev_prop_set_uint32(&dev->qdev, "hostaddr",  filter.addr);
    qdev_prop_set_uint32(&dev->qdev, "vendorid",  filter.vendor_id);
    qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
    qdev_init_nofail(&dev->qdev);
    return dev;

fail:
    object_unparent(OBJECT(dev));
    return NULL;
}

static void usb_host_register_types(void)
{
    usb_legacy_register("usb-host", "host", usb_host_device_open);
}

type_init(usb_host_register_types)
Commit	Line	Data
4075975d GH	1	/*
	2	* Linux host USB redirector
	3	*
	4	* Copyright (c) 2005 Fabrice Bellard
	5	*
	6	* Copyright (c) 2008 Max Krasnyansky
	7	* Support for host device auto connect & disconnect
	8	* Major rewrite to support fully async operation
	9	*
	10	* Copyright 2008 TJ <linux@tjworld.net>
	11	* Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition
	12	* to the legacy /proc/bus/usb USB device discovery and handling
	13	*
	14	* Permission is hereby granted, free of charge, to any person obtaining a copy
	15	* of this software and associated documentation files (the "Software"), to deal
	16	* in the Software without restriction, including without limitation the rights
	17	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	18	* copies of the Software, and to permit persons to whom the Software is
	19	* furnished to do so, subject to the following conditions:
	20	*
	21	* The above copyright notice and this permission notice shall be included in
	22	* all copies or substantial portions of the Software.
	23	*
	24	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	25	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	26	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	27	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	28	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	29	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	30	* THE SOFTWARE.
	31	*/
	32
	33	#include "qemu-common.h"
	34	#include "hw/usb.h"
	35	#include "hw/usb/host.h"
	36
	37	/*
	38	* Autoconnect filter
	39	* Format:
	40	* auto:bus:dev[:vid:pid]
	41	* auto:bus.dev[:vid:pid]
	42	*
	43	* bus - bus number (dec, * means any)
	44	* dev - device number (dec, * means any)
	45	* vid - vendor id (hex, * means any)
	46	* pid - product id (hex, * means any)
	47	*
	48	* See 'lsusb' output.
	49	*/
	50	static int parse_filter(const char spec, struct USBAutoFilter f)
	51	{
	52	enum { BUS, DEV, VID, PID, DONE };
	53	const char *p = spec;
	54	int i;
	55
	56	f->bus_num = 0;
	57	f->addr = 0;
	58	f->vendor_id = 0;
	59	f->product_id = 0;
	60
	61	for (i = BUS; i < DONE; i++) {
	62	p = strpbrk(p, ":.");
	63	if (!p) {
	64	break;
65	}
66	p++;
67
68	if (p == '') {
69	continue;
70	}
71	switch (i) {
72	case BUS:
73	f->bus_num = strtol(p, NULL, 10);
74	break;
75	case DEV:
76	f->addr = strtol(p, NULL, 10);
77	break;
78	case VID:
79	f->vendor_id = strtol(p, NULL, 16);
80	break;
81	case PID:
82	f->product_id = strtol(p, NULL, 16);
83	break;
84	}
85	}
86
87	if (i < DEV) {
88	fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
89	return -1;
90	}
91
92	return 0;
93	}
94
95	USBDevice usb_host_device_open(USBBus bus, const char *devname)
96	{
97	struct USBAutoFilter filter;
98	USBDevice *dev;
99	char *p;
100
101	dev = usb_create(bus, "usb-host");
102
103	if (strstr(devname, "auto:")) {
104	if (parse_filter(devname, &filter) < 0) {
105	goto fail;
106	}
107	} else {
108	p = strchr(devname, '.');
109	if (p) {
110	filter.bus_num = strtoul(devname, NULL, 0);
111	filter.addr = strtoul(p + 1, NULL, 0);
112	filter.vendor_id = 0;
113	filter.product_id = 0;
114	} else {
115	p = strchr(devname, ':');
116	if (p) {
117	filter.bus_num = 0;
118	filter.addr = 0;
119	filter.vendor_id = strtoul(devname, NULL, 16);
120	filter.product_id = strtoul(p + 1, NULL, 16);
121	} else {
122	goto fail;
123	}
124	}
125	}
126
127	qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
128	qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
129	qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id);
130	qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
131	qdev_init_nofail(&dev->qdev);
132	return dev;
133
134	fail:
02a5c4c9	135	object_unparent(OBJECT(dev));
4075975d GH	136	return NULL;
	137	}
	138
	139	static void usb_host_register_types(void)
	140	{
	141	usb_legacy_register("usb-host", "host", usb_host_device_open);
	142	}
	143
	144	type_init(usb_host_register_types)