//#define DEBUG
//#define DEBUG_PACKET
+//#define DEBUG_ISOCH
#define UHCI_CMD_FGR (1 << 4)
#define UHCI_CMD_EGSM (1 << 3)
other queues will not be processed until the next frame. The solution
is to allow multiple pending requests. */
uint32_t async_qh;
+ uint32_t async_frame_addr;
USBPacket usb_packet;
uint8_t usb_buf[2048];
} UHCIState;
}
}
+static void uhci_save(QEMUFile *f, void *opaque)
+{
+ UHCIState *s = opaque;
+ uint8_t num_ports = NB_PORTS;
+ int i;
+
+ pci_device_save(&s->dev, f);
+
+ qemu_put_8s(f, &num_ports);
+ for (i = 0; i < num_ports; ++i)
+ qemu_put_be16s(f, &s->ports[i].ctrl);
+ qemu_put_be16s(f, &s->cmd);
+ qemu_put_be16s(f, &s->status);
+ qemu_put_be16s(f, &s->intr);
+ qemu_put_be16s(f, &s->frnum);
+ qemu_put_be32s(f, &s->fl_base_addr);
+ qemu_put_8s(f, &s->sof_timing);
+ qemu_put_8s(f, &s->status2);
+ qemu_put_timer(f, s->frame_timer);
+}
+
+static int uhci_load(QEMUFile *f, void *opaque, int version_id)
+{
+ UHCIState *s = opaque;
+ uint8_t num_ports;
+ int i, ret;
+
+ if (version_id > 1)
+ return -EINVAL;
+
+ ret = pci_device_load(&s->dev, f);
+ if (ret < 0)
+ return ret;
+
+ qemu_get_8s(f, &num_ports);
+ if (num_ports != NB_PORTS)
+ return -EINVAL;
+
+ for (i = 0; i < num_ports; ++i)
+ qemu_get_be16s(f, &s->ports[i].ctrl);
+ qemu_get_be16s(f, &s->cmd);
+ qemu_get_be16s(f, &s->status);
+ qemu_get_be16s(f, &s->intr);
+ qemu_get_be16s(f, &s->frnum);
+ qemu_get_be32s(f, &s->fl_base_addr);
+ qemu_get_8s(f, &s->sof_timing);
+ qemu_get_8s(f, &s->status2);
+ qemu_get_timer(f, s->frame_timer);
+
+ return 0;
+}
+
static void uhci_ioport_writeb(void *opaque, uint32_t addr, uint32_t val)
{
UHCIState *s = opaque;
0 if TD successful
1 if TD unsuccessful or inactive
*/
-static int uhci_handle_td(UHCIState *s, UHCI_TD *td, int *int_mask)
+static int uhci_handle_td(UHCIState *s, UHCI_TD *td, int *int_mask,
+ int completion)
{
uint8_t pid;
- int len, max_len, err, ret;
+ int len = 0, max_len, err, ret = 0;
/* ??? This is wrong for async completion. */
if (td->ctrl & TD_CTRL_IOC) {
/* TD is active */
max_len = ((td->token >> 21) + 1) & 0x7ff;
pid = td->token & 0xff;
- if (s->async_qh) {
+
+ if (completion && (s->async_qh || s->async_frame_addr)) {
ret = s->usb_packet.len;
if (ret >= 0) {
len = ret;
len = 0;
}
s->async_qh = 0;
- } else {
+ s->async_frame_addr = 0;
+ } else if (!completion) {
s->usb_packet.pid = pid;
s->usb_packet.devaddr = (td->token >> 8) & 0x7f;
s->usb_packet.devep = (td->token >> 15) & 0xf;
return -1;
}
}
+
if (ret == USB_RET_ASYNC) {
return 2;
}
uint32_t link;
uint32_t old_td_ctrl;
uint32_t val;
+ uint32_t frame_addr;
int ret;
+ /* Handle async isochronous packet completion */
+ frame_addr = s->async_frame_addr;
+ if (frame_addr) {
+ cpu_physical_memory_read(frame_addr, (uint8_t *)&link, 4);
+ le32_to_cpus(&link);
+
+ cpu_physical_memory_read(link & ~0xf, (uint8_t *)&td, sizeof(td));
+ le32_to_cpus(&td.link);
+ le32_to_cpus(&td.ctrl);
+ le32_to_cpus(&td.token);
+ le32_to_cpus(&td.buffer);
+ old_td_ctrl = td.ctrl;
+ ret = uhci_handle_td(s, &td, &s->pending_int_mask, 1);
+
+ /* update the status bits of the TD */
+ if (old_td_ctrl != td.ctrl) {
+ val = cpu_to_le32(td.ctrl);
+ cpu_physical_memory_write((link & ~0xf) + 4,
+ (const uint8_t *)&val,
+ sizeof(val));
+ }
+ if (ret == 2) {
+ s->async_frame_addr = frame_addr;
+ } else if (ret == 0) {
+ /* update qh element link */
+ val = cpu_to_le32(td.link);
+ cpu_physical_memory_write(frame_addr,
+ (const uint8_t *)&val,
+ sizeof(val));
+ }
+ return;
+ }
+
link = s->async_qh;
if (!link) {
/* This should never happen. It means a TD somehow got removed
le32_to_cpus(&td.token);
le32_to_cpus(&td.buffer);
old_td_ctrl = td.ctrl;
- ret = uhci_handle_td(s, &td, &s->pending_int_mask);
+ ret = uhci_handle_td(s, &td, &s->pending_int_mask, 1);
+
/* update the status bits of the TD */
if (old_td_ctrl != td.ctrl) {
val = cpu_to_le32(td.ctrl);
le32_to_cpus(&td.token);
le32_to_cpus(&td.buffer);
old_td_ctrl = td.ctrl;
- ret = uhci_handle_td(s, &td, &int_mask);
+ ret = uhci_handle_td(s, &td, &int_mask, 0);
+
/* update the status bits of the TD */
if (old_td_ctrl != td.ctrl) {
val = cpu_to_le32(td.ctrl);
le32_to_cpus(&td.ctrl);
le32_to_cpus(&td.token);
le32_to_cpus(&td.buffer);
- /* Ignore isochonous transfers while there is an async packet
- pending. This is wrong, but we don't implement isochronous
- transfers anyway. */
- if (s->async_qh == 0) {
- old_td_ctrl = td.ctrl;
- ret = uhci_handle_td(s, &td, &int_mask);
- /* update the status bits of the TD */
- if (old_td_ctrl != td.ctrl) {
- val = cpu_to_le32(td.ctrl);
- cpu_physical_memory_write((link & ~0xf) + 4,
- (const uint8_t *)&val,
- sizeof(val));
- }
- if (ret < 0)
- break; /* interrupted frame */
- if (ret == 2) {
- /* We can't handle async isochronous transfers.
- Cancel The packet. */
- fprintf(stderr, "usb-uhci: Unimplemented async packet\n");
- usb_cancel_packet(&s->usb_packet);
- }
+
+ /* Handle isochonous transfer. */
+ /* FIXME: might be more than one isoc in frame */
+ old_td_ctrl = td.ctrl;
+ ret = uhci_handle_td(s, &td, &int_mask, 0);
+
+ /* update the status bits of the TD */
+ if (old_td_ctrl != td.ctrl) {
+ val = cpu_to_le32(td.ctrl);
+ cpu_physical_memory_write((link & ~0xf) + 4,
+ (const uint8_t *)&val,
+ sizeof(val));
+ }
+ if (ret < 0)
+ break; /* interrupted frame */
+ if (ret == 2) {
+ s->async_frame_addr = frame_addr;
}
link = td.link;
}
usb_cancel_packet(&s->usb_packet);
s->async_qh = 0;
}
+
/* prepare the timer for the next frame */
expire_time = qemu_get_clock(vm_clock) +
(ticks_per_sec / FRAME_TIMER_FREQ);
pci_register_io_region(&s->dev, 4, 0x20,
PCI_ADDRESS_SPACE_IO, uhci_map);
}
-
#include <sys/ioctl.h>
#include <linux/usbdevice_fs.h>
#include <linux/version.h>
+#include <signal.h>
/* We redefine it to avoid version problems */
struct usb_ctrltransfer {
const char *devname);
//#define DEBUG
+//#define DEBUG_ISOCH
+//#define USE_ASYNCIO
#define USBDEVFS_PATH "/proc/bus/usb"
#define PRODUCT_NAME_SZ 32
+#define SIG_ISOCOMPLETE (SIGRTMIN+7)
+#define MAX_ENDPOINTS 16
+struct sigaction sigact;
+
+/* endpoint association data */
+struct endp_data {
+ uint8_t type;
+};
+
+/* FIXME: move USBPacket to PendingURB */
typedef struct USBHostDevice {
USBDevice dev;
int fd;
+ USBPacket *packet;
+ struct endp_data endp_table[MAX_ENDPOINTS];
+ int configuration;
+ uint8_t descr[1024];
+ int descr_len;
+ int urbs_ready;
} USBHostDevice;
+typedef struct PendingURB {
+ struct usbdevfs_urb *urb;
+ USBHostDevice *dev;
+ QEMUBH *bh;
+ int status;
+ struct PendingURB *next;
+} PendingURB;
+
+PendingURB *pending_urbs = NULL;
+
+int add_pending_urb(struct usbdevfs_urb *urb)
+{
+ PendingURB *purb = qemu_mallocz(sizeof(PendingURB));
+ if (purb) {
+ purb->urb = urb;
+ purb->dev = NULL;
+ purb->bh = NULL;
+ purb->status = 0;
+ purb->next = pending_urbs;
+ pending_urbs = purb;
+ return 1;
+ }
+ return 0;
+}
+
+int del_pending_urb(struct usbdevfs_urb *urb)
+{
+ PendingURB *purb = pending_urbs;
+ PendingURB *prev = NULL;
+
+ while (purb && purb->urb != urb) {
+ prev = purb;
+ purb = purb->next;
+ }
+
+ if (purb && purb->urb == urb) {
+ if (prev) {
+ prev->next = purb->next;
+ } else {
+ pending_urbs = purb->next;
+ }
+ qemu_free(purb);
+ return 1;
+ }
+ return 0;
+}
+
+PendingURB *get_pending_urb(struct usbdevfs_urb *urb)
+{
+ PendingURB *purb = pending_urbs;
+
+ while (purb && purb->urb != urb) {
+ purb = purb->next;
+ }
+
+ if (purb && purb->urb == urb) {
+ return purb;
+ }
+ return NULL;
+}
+
+static int usb_host_update_interfaces(USBHostDevice *dev, int configuration)
+{
+ int dev_descr_len, config_descr_len;
+ int interface, nb_interfaces, nb_configurations;
+ int ret, i;
+
+ if (configuration == 0) /* address state - ignore */
+ return 1;
+
+ i = 0;
+ dev_descr_len = dev->descr[0];
+ if (dev_descr_len > dev->descr_len)
+ goto fail;
+ nb_configurations = dev->descr[17];
+
+ i += dev_descr_len;
+ while (i < dev->descr_len) {
+#ifdef DEBUG
+ printf("i is %d, descr_len is %d, dl %d, dt %d\n", i, dev->descr_len,
+ dev->descr[i], dev->descr[i+1]);
+#endif
+ if (dev->descr[i+1] != USB_DT_CONFIG) {
+ i += dev->descr[i];
+ continue;
+ }
+ config_descr_len = dev->descr[i];
+
+ if (configuration == dev->descr[i + 5])
+ break;
+
+ i += config_descr_len;
+ }
+
+ if (i >= dev->descr_len) {
+ printf("usb_host: error - device has no matching configuration\n");
+ goto fail;
+ }
+ nb_interfaces = dev->descr[i + 4];
+
+#ifdef USBDEVFS_DISCONNECT
+ /* earlier Linux 2.4 do not support that */
+ {
+ struct usbdevfs_ioctl ctrl;
+ for (interface = 0; interface < nb_interfaces; interface++) {
+ ctrl.ioctl_code = USBDEVFS_DISCONNECT;
+ ctrl.ifno = interface;
+ ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl);
+ if (ret < 0 && errno != ENODATA) {
+ perror("USBDEVFS_DISCONNECT");
+ goto fail;
+ }
+ }
+ }
+#endif
+
+ /* XXX: only grab if all interfaces are free */
+ for (interface = 0; interface < nb_interfaces; interface++) {
+ ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface);
+ if (ret < 0) {
+ if (errno == EBUSY) {
+ fprintf(stderr,
+ "usb_host: warning - device already grabbed\n");
+ } else {
+ perror("USBDEVFS_CLAIMINTERFACE");
+ }
+ fail:
+ return 0;
+ }
+ }
+
+#ifdef DEBUG
+ printf("usb_host: %d interfaces claimed for configuration %d\n",
+ nb_interfaces, configuration);
+#endif
+
+ return 1;
+}
+
static void usb_host_handle_reset(USBDevice *dev)
{
#if 0
qemu_free(s);
}
+static int usb_linux_update_endp_table(USBHostDevice *s);
+
static int usb_host_handle_control(USBDevice *dev,
int request,
int value,
{
USBHostDevice *s = (USBHostDevice *)dev;
struct usb_ctrltransfer ct;
+ struct usbdevfs_setinterface si;
+ int intf_update_required = 0;
int ret;
if (request == (DeviceOutRequest | USB_REQ_SET_ADDRESS)) {
/* specific SET_ADDRESS support */
dev->addr = value;
return 0;
+ } else if (request == ((USB_RECIP_INTERFACE << 8) |
+ USB_REQ_SET_INTERFACE)) {
+ /* set alternate setting for the interface */
+ si.interface = index;
+ si.altsetting = value;
+ ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si);
+ usb_linux_update_endp_table(s);
+ } else if (request == (DeviceOutRequest | USB_REQ_SET_CONFIGURATION)) {
+#ifdef DEBUG
+ printf("usb_host_handle_control: SET_CONFIGURATION request - "
+ "config %d\n", value & 0xff);
+#endif
+ if (s->configuration != (value & 0xff)) {
+ s->configuration = (value & 0xff);
+ intf_update_required = 1;
+ }
+ goto do_request;
} else {
+ do_request:
ct.bRequestType = request >> 8;
ct.bRequest = request;
ct.wValue = value;
ct.timeout = 50;
ct.data = data;
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
- if (ret < 0) {
- switch(errno) {
- case ETIMEDOUT:
- return USB_RET_NAK;
- default:
- return USB_RET_STALL;
- }
- } else {
- return ret;
+ }
+
+ if (ret < 0) {
+ switch(errno) {
+ case ETIMEDOUT:
+ return USB_RET_NAK;
+ default:
+ return USB_RET_STALL;
+ }
+ } else {
+ if (intf_update_required) {
+#ifdef DEBUG
+ printf("usb_host_handle_control: updating interfaces\n");
+#endif
+ usb_host_update_interfaces(s, value & 0xff);
}
- }
+ return ret;
+ }
}
+static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p);
+
static int usb_host_handle_data(USBDevice *dev, USBPacket *p)
{
USBHostDevice *s = (USBHostDevice *)dev;
int ret;
uint8_t devep = p->devep;
+ if (s->endp_table[p->devep - 1].type == USBDEVFS_URB_TYPE_ISO) {
+ return usb_host_handle_isoch(dev, p);
+ }
+
/* XXX: optimize and handle all data types by looking at the
config descriptor */
if (p->pid == USB_TOKEN_IN)
}
}
+static void usb_linux_bh_cb(void *opaque);
+
+void isoch_done(int signum, siginfo_t *info, void *context) {
+ struct usbdevfs_urb *urb = (struct usbdevfs_urb *)info->si_addr;
+ USBHostDevice *s = (USBHostDevice *)urb->usercontext;
+ PendingURB *purb;
+
+ if (info->si_code != SI_ASYNCIO ||
+ info->si_signo != SIG_ISOCOMPLETE) {
+ return;
+ }
+
+ purb = get_pending_urb(urb);
+ if (purb) {
+ purb->bh = qemu_bh_new(usb_linux_bh_cb, purb);
+ if (purb->bh) {
+ purb->dev = s;
+ purb->status = info->si_errno;
+ qemu_bh_schedule(purb->bh);
+ }
+ }
+}
+
+static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p)
+{
+ USBHostDevice *s = (USBHostDevice *)dev;
+ struct usbdevfs_urb *urb, *purb = NULL;
+ int ret;
+ uint8_t devep = p->devep;
+
+ if (p->pid == USB_TOKEN_IN)
+ devep |= 0x80;
+
+ urb = qemu_mallocz(sizeof(struct usbdevfs_urb) +
+ sizeof(struct usbdevfs_iso_packet_desc));
+ if (!urb) {
+ printf("usb_host_handle_isoch: malloc failed\n");
+ return 0;
+ }
+
+ urb->type = USBDEVFS_URB_TYPE_ISO;
+ urb->endpoint = devep;
+ urb->status = 0;
+ urb->flags = USBDEVFS_URB_ISO_ASAP;
+ urb->buffer = p->data;
+ urb->buffer_length = p->len;
+ urb->actual_length = 0;
+ urb->start_frame = 0;
+ urb->error_count = 0;
+#ifdef USE_ASYNCIO
+ urb->signr = SIG_ISOCOMPLETE;
+#else
+ urb->signr = 0;
+#endif
+ urb->usercontext = s;
+ urb->number_of_packets = 1;
+ urb->iso_frame_desc[0].length = p->len;
+ urb->iso_frame_desc[0].actual_length = 0;
+ urb->iso_frame_desc[0].status = 0;
+ ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb);
+ if (ret == 0) {
+ if (!add_pending_urb(urb)) {
+ printf("usb_host_handle_isoch: add_pending_urb failed %p\n", urb);
+ }
+ } else {
+ printf("usb_host_handle_isoch: SUBMITURB ioctl=%d errno=%d\n",
+ ret, errno);
+ qemu_free(urb);
+ switch(errno) {
+ case ETIMEDOUT:
+ return USB_RET_NAK;
+ case EPIPE:
+ default:
+ return USB_RET_STALL;
+ }
+ }
+#ifdef USE_ASYNCIO
+ /* FIXME: handle urbs_ready together with sync io
+ * workaround for injecting the signaled urbs into current frame */
+ if (s->urbs_ready > 0) {
+ ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb);
+ if (ret == 0) {
+ ret = purb->actual_length;
+ qemu_free(purb);
+ s->urbs_ready--;
+ }
+ return ret;
+ }
+ s->packet = p;
+ return USB_RET_ASYNC;
+#else
+ ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb);
+ if (ret == 0) {
+ if (del_pending_urb(purb)) {
+ ret = purb->actual_length;
+ qemu_free(purb);
+ } else {
+ printf("usb_host_handle_isoch: del_pending_urb failed %p\n", purb);
+ }
+ } else {
+#ifdef DEBUG_ISOCH
+ printf("usb_host_handle_isoch: REAPURBNDELAY ioctl=%d errno=%d\n",
+ ret, errno);
+#endif
+ }
+ return ret;
+#endif
+}
+
+static void usb_linux_bh_cb(void *opaque)
+{
+ PendingURB *pending_urb = (PendingURB *)opaque;
+ USBHostDevice *s = pending_urb->dev;
+ struct usbdevfs_urb *purb = NULL;
+ USBPacket *p = s->packet;
+ int ret;
+
+ /* FIXME: handle purb->status */
+ qemu_free(pending_urb->bh);
+ del_pending_urb(pending_urb->urb);
+
+ if (!p) {
+ s->urbs_ready++;
+ return;
+ }
+
+ ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb);
+ if (ret < 0) {
+ printf("usb_linux_bh_cb: REAPURBNDELAY ioctl=%d errno=%d\n",
+ ret, errno);
+ return;
+ }
+
+#ifdef DEBUG_ISOCH
+ if (purb == pending_urb->urb) {
+ printf("usb_linux_bh_cb: urb mismatch reaped=%p pending=%p\n",
+ purb, urb);
+ }
+#endif
+
+ p->len = purb->actual_length;
+ usb_packet_complete(p);
+ qemu_free(purb);
+ s->packet = NULL;
+}
+
+/* returns 1 on problem encountered or 0 for success */
+static int usb_linux_update_endp_table(USBHostDevice *s)
+{
+ uint8_t *descriptors;
+ uint8_t devep, type, configuration, alt_interface;
+ struct usb_ctrltransfer ct;
+ int interface, ret, length, i;
+
+ ct.bRequestType = USB_DIR_IN;
+ ct.bRequest = USB_REQ_GET_CONFIGURATION;
+ ct.wValue = 0;
+ ct.wIndex = 0;
+ ct.wLength = 1;
+ ct.data = &configuration;
+ ct.timeout = 50;
+
+ ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
+ if (ret < 0) {
+ perror("usb_linux_update_endp_table");
+ return 1;
+ }
+
+ /* in address state */
+ if (configuration == 0)
+ return 1;
+
+ /* get the desired configuration, interface, and endpoint descriptors
+ * from device description */
+ descriptors = &s->descr[18];
+ length = s->descr_len - 18;
+ i = 0;
+
+ if (descriptors[i + 1] != USB_DT_CONFIG ||
+ descriptors[i + 5] != configuration) {
+ printf("invalid descriptor data - configuration\n");
+ return 1;
+ }
+ i += descriptors[i];
+
+ while (i < length) {
+ if (descriptors[i + 1] != USB_DT_INTERFACE ||
+ (descriptors[i + 1] == USB_DT_INTERFACE &&
+ descriptors[i + 4] == 0)) {
+ i += descriptors[i];
+ continue;
+ }
+
+ interface = descriptors[i + 2];
+
+ 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_interface;
+ ct.timeout = 50;
+
+ ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
+ if (ret < 0) {
+ perror("usb_linux_update_endp_table");
+ return 1;
+ }
+
+ /* the current interface descriptor is the active interface
+ * and has endpoints */
+ if (descriptors[i + 3] != alt_interface) {
+ i += descriptors[i];
+ continue;
+ }
+
+ /* advance to the endpoints */
+ while (i < length && descriptors[i +1] != USB_DT_ENDPOINT)
+ i += descriptors[i];
+
+ if (i >= length)
+ break;
+
+ while (i < length) {
+ if (descriptors[i + 1] != USB_DT_ENDPOINT)
+ break;
+
+ devep = descriptors[i + 2];
+ switch (descriptors[i + 3] & 0x3) {
+ case 0x00:
+ type = USBDEVFS_URB_TYPE_CONTROL;
+ break;
+ case 0x01:
+ type = USBDEVFS_URB_TYPE_ISO;
+ break;
+ case 0x02:
+ type = USBDEVFS_URB_TYPE_BULK;
+ break;
+ case 0x03:
+ type = USBDEVFS_URB_TYPE_INTERRUPT;
+ break;
+ default:
+ printf("usb_host: malformed endpoint type\n");
+ type = USBDEVFS_URB_TYPE_BULK;
+ }
+ s->endp_table[(devep & 0xf) - 1].type = type;
+
+ i += descriptors[i];
+ }
+ }
+ return 0;
+}
+
/* XXX: exclude high speed devices or implement EHCI */
USBDevice *usb_host_device_open(const char *devname)
{
- int fd, interface, ret, i;
- USBHostDevice *dev;
+ int fd = -1, ret;
+ USBHostDevice *dev = NULL;
struct usbdevfs_connectinfo ci;
- uint8_t descr[1024];
char buf[1024];
- int descr_len, dev_descr_len, config_descr_len, nb_interfaces;
int bus_num, addr;
char product_name[PRODUCT_NAME_SZ];
+ dev = qemu_mallocz(sizeof(USBHostDevice));
+ if (!dev)
+ goto fail;
+
+#ifdef DEBUG_ISOCH
+ printf("usb_host_device_open %s\n", devname);
+#endif
if (usb_host_find_device(&bus_num, &addr,
product_name, sizeof(product_name),
devname) < 0)
snprintf(buf, sizeof(buf), USBDEVFS_PATH "/%03d/%03d",
bus_num, addr);
- fd = open(buf, O_RDWR);
+ fd = open(buf, O_RDWR | O_NONBLOCK);
if (fd < 0) {
perror(buf);
return NULL;
}
- /* read the config description */
- descr_len = read(fd, descr, sizeof(descr));
- if (descr_len <= 0) {
- perror("read descr");
+ /* read the device description */
+ dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
+ if (dev->descr_len <= 0) {
+ perror("usb_host_update_interfaces: reading device data failed");
goto fail;
}
- i = 0;
- dev_descr_len = descr[0];
- if (dev_descr_len > descr_len)
- goto fail;
- i += dev_descr_len;
- config_descr_len = descr[i];
- if (i + config_descr_len > descr_len)
- goto fail;
- nb_interfaces = descr[i + 4];
- if (nb_interfaces != 1) {
- /* NOTE: currently we grab only one interface */
- fprintf(stderr, "usb_host: only one interface supported\n");
- goto fail;
- }
-
-#ifdef USBDEVFS_DISCONNECT
- /* earlier Linux 2.4 do not support that */
+#ifdef DEBUG
{
- struct usbdevfs_ioctl ctrl;
- ctrl.ioctl_code = USBDEVFS_DISCONNECT;
- ctrl.ifno = 0;
- ret = ioctl(fd, USBDEVFS_IOCTL, &ctrl);
- if (ret < 0 && errno != ENODATA) {
- perror("USBDEVFS_DISCONNECT");
- goto fail;
- }
+ int x;
+ printf("=== begin dumping device descriptor data ===\n");
+ for (x = 0; x < dev->descr_len; x++)
+ printf("%02x ", dev->descr[x]);
+ printf("\n=== end dumping device descriptor data ===\n");
}
#endif
- /* XXX: only grab if all interfaces are free */
- interface = 0;
- ret = ioctl(fd, USBDEVFS_CLAIMINTERFACE, &interface);
- if (ret < 0) {
- if (errno == EBUSY) {
- fprintf(stderr, "usb_host: device already grabbed\n");
- } else {
- perror("USBDEVFS_CLAIMINTERFACE");
- }
- fail:
- close(fd);
- return NULL;
- }
+ dev->fd = fd;
+ dev->configuration = 1;
+
+ /* XXX - do something about initial configuration */
+ if (!usb_host_update_interfaces(dev, 1))
+ goto fail;
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci);
if (ret < 0) {
printf("host USB device %d.%d grabbed\n", bus_num, addr);
#endif
- dev = qemu_mallocz(sizeof(USBHostDevice));
- if (!dev)
+ ret = usb_linux_update_endp_table(dev);
+ if (ret)
goto fail;
- dev->fd = fd;
+
if (ci.slow)
dev->dev.speed = USB_SPEED_LOW;
else
pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
product_name);
+#ifdef USE_ASYNCIO
+ /* set up the signal handlers */
+ sigemptyset(&sigact.sa_mask);
+ sigact.sa_sigaction = isoch_done;
+ sigact.sa_flags = SA_SIGINFO;
+ sigact.sa_restorer = 0;
+ ret = sigaction(SIG_ISOCOMPLETE, &sigact, NULL);
+ if (ret < 0) {
+ printf("sigaction SIG_ISOCOMPLETE=%d errno=%d\n", ret, errno);
+ }
+#endif
+ dev->urbs_ready = 0;
return (USBDevice *)dev;
+fail:
+ if (dev)
+ qemu_free(dev);
+ close(fd);
+ return NULL;
}
static int get_tag_value(char *buf, int buf_size,
{ USB_CLASS_APP_SPEC, "Application Specific" },
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
{ USB_CLASS_STILL_IMAGE, "Still Image" },
- { USB_CLASS_CSCID, "Smart Card" },
+ { USB_CLASS_CSCID, "Smart Card" },
{ USB_CLASS_CONTENT_SEC, "Content Security" },
{ -1, NULL }
};
projects / qemu / commitdiff