#define DPRINTF(...)
#endif
-#define USBDBG_DEVOPENED "husb: opened %s/devices\n"
-
-#define USBPROCBUS_PATH "/proc/bus/usb"
#define PRODUCT_NAME_SZ 32
-#define MAX_ENDPOINTS 15
#define MAX_PORTLEN 16
-#define USBDEVBUS_PATH "/dev/bus/usb"
-#define USBSYSBUS_PATH "/sys/bus/usb"
-
-static char *usb_host_device_path;
-
-#define USB_FS_NONE 0
-#define USB_FS_PROC 1
-#define USB_FS_DEV 2
-#define USB_FS_SYS 3
-
-static int usb_fs_type;
/* endpoint association data */
#define ISO_FRAME_DESC_PER_URB 32
-#define INVALID_EP_TYPE 255
/* devio.c limits single requests to 16k */
#define MAX_USBFS_BUFFER_SIZE 16384
typedef struct AsyncURB AsyncURB;
struct endp_data {
- uint8_t type;
uint8_t halted;
uint8_t iso_started;
AsyncURB *iso_urb;
int iso_urb_idx;
int iso_buffer_used;
- int max_packet_size;
int inflight;
};
USBDevice dev;
int fd;
int hub_fd;
+ int hub_port;
uint8_t descr[8192];
int descr_len;
- int configuration;
- int ninterfaces;
int closing;
uint32_t iso_urb_count;
Notifier exit;
- struct endp_data ep_in[MAX_ENDPOINTS];
- struct endp_data ep_out[MAX_ENDPOINTS];
+ struct endp_data ep_in[USB_MAX_ENDPOINTS];
+ struct endp_data ep_out[USB_MAX_ENDPOINTS];
QLIST_HEAD(, AsyncURB) aurbs;
/* Host side address */
const char *device_file, const char *device_name);
static int usb_linux_update_endp_table(USBHostDevice *s);
+static int usb_host_usbfs_type(USBHostDevice *s, USBPacket *p)
+{
+ static const int usbfs[] = {
+ [USB_ENDPOINT_XFER_CONTROL] = USBDEVFS_URB_TYPE_CONTROL,
+ [USB_ENDPOINT_XFER_ISOC] = USBDEVFS_URB_TYPE_ISO,
+ [USB_ENDPOINT_XFER_BULK] = USBDEVFS_URB_TYPE_BULK,
+ [USB_ENDPOINT_XFER_INT] = USBDEVFS_URB_TYPE_INTERRUPT,
+ };
+ uint8_t type = usb_ep_get_type(&s->dev, p->pid, p->devep);
+ assert(type < ARRAY_SIZE(usbfs));
+ return usbfs[type];
+}
+
+static int usb_host_do_reset(USBHostDevice *dev)
+{
+ struct timeval s, e;
+ uint32_t usecs;
+ int ret;
+
+ gettimeofday(&s, NULL);
+ ret = ioctl(dev->fd, USBDEVFS_RESET);
+ gettimeofday(&e, NULL);
+ usecs = (e.tv_sec - s.tv_sec) * 1000000;
+ usecs += e.tv_usec - s.tv_usec;
+ if (usecs > 1000000) {
+ /* more than a second, something is fishy, broken usb device? */
+ fprintf(stderr, "husb: device %d:%d reset took %d.%06d seconds\n",
+ dev->bus_num, dev->addr, usecs / 1000000, usecs % 1000000);
+ }
+ return ret;
+}
+
static struct endp_data *get_endp(USBHostDevice *s, int pid, int ep)
{
struct endp_data *eps = pid == USB_TOKEN_IN ? s->ep_in : s->ep_out;
assert(pid == USB_TOKEN_IN || pid == USB_TOKEN_OUT);
- assert(ep > 0 && ep <= MAX_ENDPOINTS);
+ assert(ep > 0 && ep <= USB_MAX_ENDPOINTS);
return eps + ep - 1;
}
static int is_isoc(USBHostDevice *s, int pid, int ep)
{
- return get_endp(s, pid, ep)->type == USBDEVFS_URB_TYPE_ISO;
+ return usb_ep_get_type(&s->dev, pid, ep) == USB_ENDPOINT_XFER_ISOC;
}
static int is_valid(USBHostDevice *s, int pid, int ep)
{
- return get_endp(s, pid, ep)->type != INVALID_EP_TYPE;
+ return usb_ep_get_type(&s->dev, pid, ep) != USB_ENDPOINT_XFER_INVALID;
}
static int is_halted(USBHostDevice *s, int pid, int ep)
return get_endp(s, pid, ep)->iso_buffer_used;
}
-static void set_max_packet_size(USBHostDevice *s, int pid, int ep,
- uint8_t *descriptor)
-{
- int raw = descriptor[4] + (descriptor[5] << 8);
- int size, microframes;
-
- size = raw & 0x7ff;
- switch ((raw >> 11) & 3) {
- case 1: microframes = 2; break;
- case 2: microframes = 3; break;
- default: microframes = 1; break;
- }
- get_endp(s, pid, ep)->max_packet_size = size * microframes;
-}
-
-static int get_max_packet_size(USBHostDevice *s, int pid, int ep)
-{
- return get_endp(s, pid, ep)->max_packet_size;
-}
-
/*
* Async URB state.
* We always allocate iso packet descriptors even for bulk transfers
}
}
+static int usb_host_open_device(int bus, int addr)
+{
+ const char *usbfs = NULL;
+ char filename[32];
+ struct stat st;
+ int fd, rc;
+
+ rc = stat("/dev/bus/usb", &st);
+ if (rc == 0 && S_ISDIR(st.st_mode)) {
+ /* udev-created device nodes available */
+ usbfs = "/dev/bus/usb";
+ } else {
+ /* fallback: usbfs mounted below /proc */
+ usbfs = "/proc/bus/usb";
+ }
+
+ snprintf(filename, sizeof(filename), "%s/%03d/%03d",
+ usbfs, bus, addr);
+ fd = open(filename, O_RDWR | O_NONBLOCK);
+ if (fd < 0) {
+ fprintf(stderr, "husb: open %s: %s\n", filename, strerror(errno));
+ }
+ return fd;
+}
+
static int usb_host_claim_port(USBHostDevice *s)
{
#ifdef USBDEVFS_CLAIM_PORT
char *h, hub_name[64], line[1024];
- int hub_addr, portnr, ret;
+ int hub_addr, ret;
snprintf(hub_name, sizeof(hub_name), "%d-%s",
s->match.bus_num, s->match.port);
/* try strip off last ".$portnr" to get hub */
h = strrchr(hub_name, '.');
if (h != NULL) {
- portnr = atoi(h+1);
+ s->hub_port = atoi(h+1);
*h = '\0';
} else {
/* no dot in there -> it is the root hub */
snprintf(hub_name, sizeof(hub_name), "usb%d",
s->match.bus_num);
- portnr = atoi(s->match.port);
+ s->hub_port = atoi(s->match.port);
}
if (!usb_host_read_file(line, sizeof(line), "devnum",
return -1;
}
- if (!usb_host_device_path) {
- return -1;
- }
- snprintf(line, sizeof(line), "%s/%03d/%03d",
- usb_host_device_path, s->match.bus_num, hub_addr);
- s->hub_fd = open(line, O_RDWR | O_NONBLOCK);
+ s->hub_fd = usb_host_open_device(s->match.bus_num, hub_addr);
if (s->hub_fd < 0) {
return -1;
}
- ret = ioctl(s->hub_fd, USBDEVFS_CLAIM_PORT, &portnr);
+ ret = ioctl(s->hub_fd, USBDEVFS_CLAIM_PORT, &s->hub_port);
if (ret < 0) {
close(s->hub_fd);
s->hub_fd = -1;
return -1;
}
- trace_usb_host_claim_port(s->match.bus_num, hub_addr, portnr);
+ trace_usb_host_claim_port(s->match.bus_num, hub_addr, s->hub_port);
return 0;
#else
return -1;
#endif
}
+static void usb_host_release_port(USBHostDevice *s)
+{
+ if (s->hub_fd == -1) {
+ return;
+ }
+#ifdef USBDEVFS_RELEASE_PORT
+ ioctl(s->hub_fd, USBDEVFS_RELEASE_PORT, &s->hub_port);
+#endif
+ close(s->hub_fd);
+ s->hub_fd = -1;
+}
+
static int usb_host_disconnect_ifaces(USBHostDevice *dev, int nb_interfaces)
{
/* earlier Linux 2.4 do not support that */
char device_name[64], line[1024];
int num_interfaces = 0;
- if (usb_fs_type != USB_FS_SYS) {
- return -1;
- }
-
sprintf(device_name, "%d-%s", s->bus_num, s->port);
if (!usb_host_read_file(line, sizeof(line), "bNumInterfaces",
device_name)) {
int interface, nb_interfaces;
int ret, i;
+ for (i = 0; i < USB_MAX_INTERFACES; i++) {
+ dev->dev.altsetting[i] = 0;
+ }
+
if (configuration == 0) { /* address state - ignore */
- dev->ninterfaces = 0;
- dev->configuration = 0;
+ dev->dev.ninterfaces = 0;
+ dev->dev.configuration = 0;
return 1;
}
trace_usb_host_claim_interfaces(dev->bus_num, dev->addr,
nb_interfaces, configuration);
- dev->ninterfaces = nb_interfaces;
- dev->configuration = configuration;
+ dev->dev.ninterfaces = nb_interfaces;
+ dev->dev.configuration = configuration;
return 1;
fail:
trace_usb_host_release_interfaces(s->bus_num, s->addr);
- for (i = 0; i < s->ninterfaces; i++) {
+ for (i = 0; i < s->dev.ninterfaces; i++) {
ret = ioctl(s->fd, USBDEVFS_RELEASEINTERFACE, &i);
if (ret < 0) {
perror("USBDEVFS_RELEASEINTERFACE");
trace_usb_host_reset(s->bus_num, s->addr);
- ioctl(s->fd, USBDEVFS_RESET);
+ usb_host_do_reset(s);;
usb_host_claim_interfaces(s, 0);
usb_linux_update_endp_table(s);
{
USBHostDevice *s = (USBHostDevice *)dev;
+ usb_host_release_port(s);
usb_host_close(s);
- if (s->hub_fd != -1) {
- close(s->hub_fd);
- }
QTAILQ_REMOVE(&hostdevs, s, next);
qemu_remove_exit_notifier(&s->exit);
}
static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, int pid, uint8_t ep)
{
AsyncURB *aurb;
- int i, j, len = get_max_packet_size(s, pid, ep);
+ int i, j, len = usb_ep_get_max_packet_size(&s->dev, pid, ep);
aurb = g_malloc0(s->iso_urb_count * sizeof(*aurb));
for (i = 0; i < s->iso_urb_count; i++) {
int i, j, ret, max_packet_size, offset, len = 0;
uint8_t *buf;
- max_packet_size = get_max_packet_size(s, p->pid, p->devep);
+ max_packet_size = usb_ep_get_max_packet_size(&s->dev, p->pid, p->devep);
if (max_packet_size == 0)
return USB_RET_NAK;
urb = &aurb->urb;
urb->endpoint = ep;
- urb->type = USBDEVFS_URB_TYPE_BULK;
+ urb->type = usb_host_usbfs_type(s, p);
urb->usercontext = s;
urb->buffer = pbuf;
urb->buffer_length = prem;
trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt);
- for (i = 1; i <= MAX_ENDPOINTS; i++) {
+ for (i = 1; i <= USB_MAX_ENDPOINTS; i++) {
if (is_isoc(s, USB_TOKEN_IN, i)) {
usb_host_stop_n_free_iso(s, USB_TOKEN_IN, i);
}
}
}
+ if (iface >= USB_MAX_INTERFACES) {
+ return USB_RET_STALL;
+ }
+
si.interface = iface;
si.altsetting = alt;
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si);
if (ret < 0) {
return ctrl_error();
}
+
+ s->dev.altsetting[iface] = alt;
usb_linux_update_endp_table(s);
return 0;
}
static uint8_t usb_linux_get_alt_setting(USBHostDevice *s,
uint8_t configuration, uint8_t interface)
{
- uint8_t alt_setting;
- struct usb_ctrltransfer ct;
- int ret;
-
- if (usb_fs_type == USB_FS_SYS) {
- char device_name[64], line[1024];
- int alt_setting;
+ char device_name[64], line[1024];
+ int alt_setting;
- sprintf(device_name, "%d-%s:%d.%d", s->bus_num, s->port,
- (int)configuration, (int)interface);
+ sprintf(device_name, "%d-%s:%d.%d", s->bus_num, s->port,
+ (int)configuration, (int)interface);
- if (!usb_host_read_file(line, sizeof(line), "bAlternateSetting",
- device_name)) {
- goto usbdevfs;
- }
- if (sscanf(line, "%d", &alt_setting) != 1) {
- goto usbdevfs;
- }
- return alt_setting;
- }
-
-usbdevfs:
- ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE;
- ct.bRequest = USB_REQ_GET_INTERFACE;
- ct.wValue = 0;
- ct.wIndex = interface;
- ct.wLength = 1;
- ct.data = &alt_setting;
- ct.timeout = 50;
- ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
- if (ret < 0) {
+ if (!usb_host_read_file(line, sizeof(line), "bAlternateSetting",
+ device_name)) {
+ /* Assume alt 0 on error */
+ return 0;
+ }
+ if (sscanf(line, "%d", &alt_setting) != 1) {
/* Assume alt 0 on error */
return 0;
}
-
return alt_setting;
}
{
uint8_t *descriptors;
uint8_t devep, type, alt_interface;
+ uint16_t raw;
int interface, length, i, ep, pid;
struct endp_data *epd;
- for (i = 0; i < MAX_ENDPOINTS; i++) {
- s->ep_in[i].type = INVALID_EP_TYPE;
- s->ep_out[i].type = INVALID_EP_TYPE;
- }
+ usb_ep_init(&s->dev);
- if (s->configuration == 0) {
+ if (s->dev.configuration == 0) {
/* not configured yet -- leave all endpoints disabled */
return 0;
}
length = s->descr_len - 18;
i = 0;
- if (descriptors[i + 1] != USB_DT_CONFIG ||
- descriptors[i + 5] != s->configuration) {
- fprintf(stderr, "invalid descriptor data - configuration %d\n",
- s->configuration);
- return 1;
- }
- i += descriptors[i];
-
while (i < length) {
+ if (descriptors[i + 1] != USB_DT_CONFIG) {
+ fprintf(stderr, "invalid descriptor data\n");
+ return 1;
+ } else if (descriptors[i + 5] != s->dev.configuration) {
+ DPRINTF("not requested configuration %d\n", s->dev.configuration);
+ i += (descriptors[i + 3] << 8) + descriptors[i + 2];
+ continue;
+ }
+ i += descriptors[i];
+
if (descriptors[i + 1] != USB_DT_INTERFACE ||
(descriptors[i + 1] == USB_DT_INTERFACE &&
descriptors[i + 4] == 0)) {
}
interface = descriptors[i + 2];
- alt_interface = usb_linux_get_alt_setting(s, s->configuration,
+ alt_interface = usb_linux_get_alt_setting(s, s->dev.configuration,
interface);
/* the current interface descriptor is the active interface
return 1;
}
- switch (descriptors[i + 3] & 0x3) {
- case 0x00:
- type = USBDEVFS_URB_TYPE_CONTROL;
- break;
- case 0x01:
- type = USBDEVFS_URB_TYPE_ISO;
- set_max_packet_size(s, pid, ep, descriptors + i);
- break;
- case 0x02:
- type = USBDEVFS_URB_TYPE_BULK;
- break;
- case 0x03:
- type = USBDEVFS_URB_TYPE_INTERRUPT;
- break;
- default:
- DPRINTF("usb_host: malformed endpoint type\n");
- type = USBDEVFS_URB_TYPE_BULK;
- }
+ type = descriptors[i + 3] & 0x3;
+ raw = descriptors[i + 4] + (descriptors[i + 5] << 8);
+ usb_ep_set_max_packet_size(&s->dev, pid, ep, raw);
+ assert(usb_ep_get_type(&s->dev, pid, ep) ==
+ USB_ENDPOINT_XFER_INVALID);
+ usb_ep_set_type(&s->dev, pid, ep, type);
+ usb_ep_set_ifnum(&s->dev, pid, ep, interface);
+
epd = get_endp(s, pid, ep);
- assert(epd->type == INVALID_EP_TYPE);
- epd->type = type;
epd->halted = 0;
i += descriptors[i];
}
}
+#ifdef DEBUG
+ usb_ep_dump(&s->dev);
+#endif
return 0;
}
const char *prod_name, int speed)
{
int fd = -1, ret;
- char buf[1024];
trace_usb_host_open_started(bus_num, addr);
goto fail;
}
- if (!usb_host_device_path) {
- perror("husb: USB Host Device Path not set");
- goto fail;
- }
- snprintf(buf, sizeof(buf), "%s/%03d/%03d", usb_host_device_path,
- bus_num, addr);
- fd = open(buf, O_RDWR | O_NONBLOCK);
+ fd = usb_host_open_device(bus_num, addr);
if (fd < 0) {
- perror(buf);
goto fail;
}
DPRINTF("husb: opened %s\n", buf);
{
int i;
- if (dev->fd == -1 || !dev->dev.attached) {
+ if (dev->fd == -1) {
return -1;
}
qemu_set_fd_handler(dev->fd, NULL, NULL, NULL);
dev->closing = 1;
- for (i = 1; i <= MAX_ENDPOINTS; i++) {
+ for (i = 1; i <= USB_MAX_ENDPOINTS; i++) {
if (is_isoc(dev, USB_TOKEN_IN, i)) {
usb_host_stop_n_free_iso(dev, USB_TOKEN_IN, i);
}
}
async_complete(dev);
dev->closing = 0;
- usb_device_detach(&dev->dev);
- ioctl(dev->fd, USBDEVFS_RESET);
+ if (dev->dev.attached) {
+ usb_device_detach(&dev->dev);
+ }
+ usb_host_do_reset(dev);
close(dev->fd);
dev->fd = -1;
return 0;
{
USBHostDevice *s = container_of(n, USBHostDevice, exit);
+ usb_host_release_port(s);
if (s->fd != -1) {
- ioctl(s->fd, USBDEVFS_RESET);
+ usb_host_do_reset(s);;
}
}
.unmigratable = 1,
};
-static struct USBDeviceInfo usb_host_dev_info = {
- .product_desc = "USB Host Device",
- .qdev.name = "usb-host",
- .qdev.size = sizeof(USBHostDevice),
- .qdev.vmsd = &vmstate_usb_host,
- .init = usb_host_initfn,
- .handle_packet = usb_generic_handle_packet,
- .cancel_packet = usb_host_async_cancel,
- .handle_data = usb_host_handle_data,
- .handle_control = usb_host_handle_control,
- .handle_reset = usb_host_handle_reset,
- .handle_destroy = usb_host_handle_destroy,
- .usbdevice_name = "host",
- .usbdevice_init = usb_host_device_open,
- .qdev.props = (Property[]) {
+static void usb_host_class_initfn(ObjectClass *klass, void *data)
+{
+ USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
+
+ uc->init = usb_host_initfn;
+ uc->product_desc = "USB Host Device";
+ uc->handle_packet = usb_generic_handle_packet;
+ uc->cancel_packet = usb_host_async_cancel;
+ uc->handle_data = usb_host_handle_data;
+ uc->handle_control = usb_host_handle_control;
+ uc->handle_reset = usb_host_handle_reset;
+ uc->handle_destroy = usb_host_handle_destroy;
+}
+
+static struct DeviceInfo usb_host_dev_info = {
+ .name = "usb-host",
+ .size = sizeof(USBHostDevice),
+ .vmsd = &vmstate_usb_host,
+ .class_init= usb_host_class_initfn,
+ .props = (Property[]) {
DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0),
DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0),
DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
static void usb_host_register_devices(void)
{
- usb_qdev_register(&usb_host_dev_info);
+ usb_qdev_register(&usb_host_dev_info, "host", usb_host_device_open);
}
device_init(usb_host_register_devices)
return -1;
}
-static int get_tag_value(char *buf, int buf_size,
- const char *str, const char *tag,
- const char *stopchars)
-{
- const char *p;
- char *q;
- p = strstr(str, tag);
- if (!p) {
- return -1;
- }
- p += strlen(tag);
- while (qemu_isspace(*p)) {
- p++;
- }
- q = buf;
- while (*p != '\0' && !strchr(stopchars, *p)) {
- if ((q - buf) < (buf_size - 1)) {
- *q++ = *p;
- }
- p++;
- }
- *q = '\0';
- return q - buf;
-}
-
-/*
- * Use /proc/bus/usb/devices or /dev/bus/usb/devices file to determine
- * host's USB devices. This is legacy support since many distributions
- * are moving to /sys/bus/usb
- */
-static int usb_host_scan_dev(void *opaque, USBScanFunc *func)
-{
- FILE *f = NULL;
- char line[1024];
- char buf[1024];
- int bus_num, addr, speed, device_count;
- int class_id, product_id, vendor_id, port;
- char product_name[512];
- int ret = 0;
-
- if (!usb_host_device_path) {
- perror("husb: USB Host Device Path not set");
- goto the_end;
- }
- snprintf(line, sizeof(line), "%s/devices", usb_host_device_path);
- f = fopen(line, "r");
- if (!f) {
- perror("husb: cannot open devices file");
- goto the_end;
- }
-
- device_count = 0;
- bus_num = addr = class_id = product_id = vendor_id = port = 0;
- speed = -1; /* Can't get the speed from /[proc|dev]/bus/usb/devices */
- for(;;) {
- if (fgets(line, sizeof(line), f) == NULL) {
- break;
- }
- if (strlen(line) > 0) {
- line[strlen(line) - 1] = '\0';
- }
- if (line[0] == 'T' && line[1] == ':') {
- if (device_count && (vendor_id || product_id)) {
- /* New device. Add the previously discovered device. */
- ret = func(opaque, bus_num, addr, 0, class_id, vendor_id,
- product_id, product_name, speed);
- if (ret) {
- goto the_end;
- }
- }
- if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0) {
- goto fail;
- }
- bus_num = atoi(buf);
- if (get_tag_value(buf, sizeof(buf), line, "Port=", " ") < 0) {
- goto fail;
- }
- port = atoi(buf);
- if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0) {
- goto fail;
- }
- addr = atoi(buf);
- if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) {
- goto fail;
- }
- if (!strcmp(buf, "5000")) {
- speed = USB_SPEED_SUPER;
- } else if (!strcmp(buf, "480")) {
- speed = USB_SPEED_HIGH;
- } else if (!strcmp(buf, "1.5")) {
- speed = USB_SPEED_LOW;
- } else {
- speed = USB_SPEED_FULL;
- }
- product_name[0] = '\0';
- class_id = 0xff;
- device_count++;
- product_id = 0;
- vendor_id = 0;
- } else if (line[0] == 'P' && line[1] == ':') {
- if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0) {
- goto fail;
- }
- vendor_id = strtoul(buf, NULL, 16);
- if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0) {
- goto fail;
- }
- product_id = strtoul(buf, NULL, 16);
- } else if (line[0] == 'S' && line[1] == ':') {
- if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0) {
- goto fail;
- }
- pstrcpy(product_name, sizeof(product_name), buf);
- } else if (line[0] == 'D' && line[1] == ':') {
- if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0) {
- goto fail;
- }
- class_id = strtoul(buf, NULL, 16);
- }
- fail: ;
- }
- if (device_count && (vendor_id || product_id)) {
- /* Add the last device. */
- if (port > 0) {
- snprintf(buf, sizeof(buf), "%d", port);
- } else {
- snprintf(buf, sizeof(buf), "?");
- }
- ret = func(opaque, bus_num, addr, buf, class_id, vendor_id,
- product_id, product_name, speed);
- }
- the_end:
- if (f) {
- fclose(f);
- }
- return ret;
-}
-
/*
* Read sys file-system device file
*
int ret = 0;
char filename[PATH_MAX];
- snprintf(filename, PATH_MAX, USBSYSBUS_PATH "/devices/%s/%s", device_name,
+ snprintf(filename, PATH_MAX, "/sys/bus/usb/devices/%s/%s", device_name,
device_file);
f = fopen(filename, "r");
if (f) {
* This code is based on Robert Schiele's original patches posted to
* the Novell bug-tracker https://bugzilla.novell.com/show_bug.cgi?id=241950
*/
-static int usb_host_scan_sys(void *opaque, USBScanFunc *func)
+static int usb_host_scan(void *opaque, USBScanFunc *func)
{
DIR *dir = NULL;
char line[1024];
char product_name[512];
struct dirent *de;
- dir = opendir(USBSYSBUS_PATH "/devices");
+ dir = opendir("/sys/bus/usb/devices");
if (!dir) {
- perror("husb: cannot open devices directory");
+ perror("husb: opendir /sys/bus/usb/devices");
+ fprintf(stderr, "husb: please make sure sysfs is mounted at /sys\n");
goto the_end;
}
return ret;
}
-/*
- * Determine how to access the host's USB devices and call the
- * specific support function.
- */
-static int usb_host_scan(void *opaque, USBScanFunc *func)
-{
- Monitor *mon = cur_mon;
- FILE *f = NULL;
- DIR *dir = NULL;
- int ret = 0;
- const char *fs_type[] = {"unknown", "proc", "dev", "sys"};
- char devpath[PATH_MAX];
-
- /* only check the host once */
- if (!usb_fs_type) {
- dir = opendir(USBSYSBUS_PATH "/devices");
- if (dir) {
- /* devices found in /dev/bus/usb/ (yes - not a mistake!) */
- strcpy(devpath, USBDEVBUS_PATH);
- usb_fs_type = USB_FS_SYS;
- closedir(dir);
- DPRINTF(USBDBG_DEVOPENED, USBSYSBUS_PATH);
- goto found_devices;
- }
- f = fopen(USBPROCBUS_PATH "/devices", "r");
- if (f) {
- /* devices found in /proc/bus/usb/ */
- strcpy(devpath, USBPROCBUS_PATH);
- usb_fs_type = USB_FS_PROC;
- fclose(f);
- DPRINTF(USBDBG_DEVOPENED, USBPROCBUS_PATH);
- goto found_devices;
- }
- /* try additional methods if an access method hasn't been found yet */
- f = fopen(USBDEVBUS_PATH "/devices", "r");
- if (f) {
- /* devices found in /dev/bus/usb/ */
- strcpy(devpath, USBDEVBUS_PATH);
- usb_fs_type = USB_FS_DEV;
- fclose(f);
- DPRINTF(USBDBG_DEVOPENED, USBDEVBUS_PATH);
- goto found_devices;
- }
- found_devices:
- if (!usb_fs_type) {
- if (mon) {
- monitor_printf(mon, "husb: unable to access USB devices\n");
- }
- return -ENOENT;
- }
-
- /* the module setting (used later for opening devices) */
- usb_host_device_path = g_malloc0(strlen(devpath)+1);
- strcpy(usb_host_device_path, devpath);
- if (mon) {
- monitor_printf(mon, "husb: using %s file-system with %s\n",
- fs_type[usb_fs_type], usb_host_device_path);
- }
- }
-
- switch (usb_fs_type) {
- case USB_FS_PROC:
- case USB_FS_DEV:
- ret = usb_host_scan_dev(opaque, func);
- break;
- case USB_FS_SYS:
- ret = usb_host_scan_sys(opaque, func);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-
static QEMUTimer *usb_auto_timer;
static int usb_host_auto_scan(void *opaque, int bus_num,
projects / lisovros / qemu_apohw.git / blobdiff