/* endpoint association data */
#define ISO_FRAME_DESC_PER_URB 32
-#define ISO_URB_COUNT 3
#define INVALID_EP_TYPE 255
/* devio.c limits single requests to 16k */
int iso_urb_idx;
int iso_buffer_used;
int max_packet_size;
+ int inflight;
};
struct USBAutoFilter {
int configuration;
int ninterfaces;
int closing;
+ uint32_t iso_urb_count;
Notifier exit;
struct endp_data endp_table[MAX_ENDPOINTS];
static int usb_host_read_file(char *line, size_t line_size,
const char *device_file, const char *device_name);
+static struct endp_data *get_endp(USBHostDevice *s, int ep)
+{
+ return s->endp_table + ep - 1;
+}
+
static int is_isoc(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].type == USBDEVFS_URB_TYPE_ISO;
+ return get_endp(s, ep)->type == USBDEVFS_URB_TYPE_ISO;
}
static int is_valid(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].type != INVALID_EP_TYPE;
+ return get_endp(s, ep)->type != INVALID_EP_TYPE;
}
static int is_halted(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].halted;
+ return get_endp(s, ep)->halted;
}
static void clear_halt(USBHostDevice *s, int ep)
{
- s->endp_table[ep - 1].halted = 0;
+ get_endp(s, ep)->halted = 0;
}
static void set_halt(USBHostDevice *s, int ep)
{
- s->endp_table[ep - 1].halted = 1;
+ get_endp(s, ep)->halted = 1;
}
static int is_iso_started(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].iso_started;
+ return get_endp(s, ep)->iso_started;
}
static void clear_iso_started(USBHostDevice *s, int ep)
{
- s->endp_table[ep - 1].iso_started = 0;
+ get_endp(s, ep)->iso_started = 0;
}
static void set_iso_started(USBHostDevice *s, int ep)
{
- s->endp_table[ep - 1].iso_started = 1;
+ struct endp_data *e = get_endp(s, ep);
+ if (!e->iso_started) {
+ e->iso_started = 1;
+ e->inflight = 0;
+ }
+}
+
+static int change_iso_inflight(USBHostDevice *s, int ep, int value)
+{
+ struct endp_data *e = get_endp(s, ep);
+
+ e->inflight += value;
+ return e->inflight;
}
static void set_iso_urb(USBHostDevice *s, int ep, AsyncURB *iso_urb)
{
- s->endp_table[ep - 1].iso_urb = iso_urb;
+ get_endp(s, ep)->iso_urb = iso_urb;
}
static AsyncURB *get_iso_urb(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].iso_urb;
+ return get_endp(s, ep)->iso_urb;
}
static void set_iso_urb_idx(USBHostDevice *s, int ep, int i)
{
- s->endp_table[ep - 1].iso_urb_idx = i;
+ get_endp(s, ep)->iso_urb_idx = i;
}
static int get_iso_urb_idx(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].iso_urb_idx;
+ return get_endp(s, ep)->iso_urb_idx;
}
static void set_iso_buffer_used(USBHostDevice *s, int ep, int i)
{
- s->endp_table[ep - 1].iso_buffer_used = i;
+ get_endp(s, ep)->iso_buffer_used = i;
}
static int get_iso_buffer_used(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].iso_buffer_used;
+ return get_endp(s, ep)->iso_buffer_used;
}
static void set_max_packet_size(USBHostDevice *s, int ep, uint8_t *descriptor)
case 2: microframes = 3; break;
default: microframes = 1; break;
}
- DPRINTF("husb: max packet size: 0x%x -> %d x %d\n",
- raw, microframes, size);
- s->endp_table[ep - 1].max_packet_size = size * microframes;
+ get_endp(s, ep)->max_packet_size = size * microframes;
}
static int get_max_packet_size(USBHostDevice *s, int ep)
{
- return s->endp_table[ep - 1].max_packet_size;
+ return get_endp(s, ep)->max_packet_size;
}
/*
{
USBHostDevice *s = opaque;
AsyncURB *aurb;
+ int urbs = 0;
while (1) {
USBPacket *p;
int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb);
if (r < 0) {
if (errno == EAGAIN) {
+ if (urbs > 2) {
+ fprintf(stderr, "husb: %d iso urbs finished at once\n", urbs);
+ }
return;
}
if (errno == ENODEV && !s->closing) {
/* If this is a buffered iso urb mark it as complete and don't do
anything else (it is handled further in usb_host_handle_iso_data) */
if (aurb->iso_frame_idx == -1) {
+ int inflight;
if (aurb->urb.status == -EPIPE) {
set_halt(s, aurb->urb.endpoint & 0xf);
}
aurb->iso_frame_idx = 0;
+ urbs++;
+ inflight = change_iso_inflight(s, aurb->urb.endpoint & 0xf, -1);
+ if (inflight == 0 && is_iso_started(s, aurb->urb.endpoint & 0xf)) {
+ fprintf(stderr, "husb: out of buffers for iso stream\n");
+ }
continue;
}
AsyncURB *aurb;
int i, j, len = get_max_packet_size(s, ep);
- aurb = qemu_mallocz(ISO_URB_COUNT * sizeof(*aurb));
- for (i = 0; i < ISO_URB_COUNT; i++) {
+ aurb = qemu_mallocz(s->iso_urb_count * sizeof(*aurb));
+ for (i = 0; i < s->iso_urb_count; i++) {
aurb[i].urb.endpoint = ep;
aurb[i].urb.buffer_length = ISO_FRAME_DESC_PER_URB * len;
aurb[i].urb.buffer = qemu_malloc(aurb[i].urb.buffer_length);
return;
}
- for (i = 0; i < ISO_URB_COUNT; i++) {
+ for (i = 0; i < s->iso_urb_count; i++) {
/* in flight? */
if (aurb[i].iso_frame_idx == -1) {
ret = ioctl(s->fd, USBDEVFS_DISCARDURB, &aurb[i]);
async_complete(s);
}
- for (i = 0; i < ISO_URB_COUNT; i++) {
+ for (i = 0; i < s->iso_urb_count; i++) {
qemu_free(aurb[i].urb.buffer);
}
}
aurb[i].iso_frame_idx++;
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
- i = (i + 1) % ISO_URB_COUNT;
+ i = (i + 1) % s->iso_urb_count;
set_iso_urb_idx(s, p->devep, i);
}
} else {
if (is_iso_started(s, p->devep)) {
/* (Re)-submit all fully consumed / filled urbs */
- for (i = 0; i < ISO_URB_COUNT; i++) {
+ for (i = 0; i < s->iso_urb_count; i++) {
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, &aurb[i]);
if (ret < 0) {
break;
}
aurb[i].iso_frame_idx = -1;
+ change_iso_inflight(s, p->devep, +1);
}
}
}
return 0;
}
+/*
+ * Check if we can safely redirect a usb2 device to a usb1 virtual controller,
+ * this function assumes this is safe, if:
+ * 1) There are no isoc endpoints
+ * 2) There are no interrupt endpoints with a max_packet_size > 64
+ * Note bulk endpoints with a max_packet_size > 64 in theory also are not
+ * usb1 compatible, but in practice this seems to work fine.
+ */
+static int usb_linux_full_speed_compat(USBHostDevice *dev)
+{
+ int i, packet_size;
+
+ /*
+ * usb_linux_update_endp_table only registers info about ep in the current
+ * interface altsettings, so we need to parse the descriptors again.
+ */
+ for (i = 0; (i + 5) < dev->descr_len; i += dev->descr[i]) {
+ if (dev->descr[i + 1] == USB_DT_ENDPOINT) {
+ switch (dev->descr[i + 3] & 0x3) {
+ case 0x00: /* CONTROL */
+ break;
+ case 0x01: /* ISO */
+ return 0;
+ case 0x02: /* BULK */
+ break;
+ case 0x03: /* INTERRUPT */
+ packet_size = dev->descr[i + 4] + (dev->descr[i + 5] << 8);
+ if (packet_size > 64)
+ return 0;
+ break;
+ }
+ }
+ }
+ return 1;
+}
+
static int usb_host_open(USBHostDevice *dev, int bus_num,
int addr, char *port, const char *prod_name, int speed)
{
}
}
dev->dev.speed = speed;
+ dev->dev.speedmask = (1 << speed);
+ if (dev->dev.speed == USB_SPEED_HIGH && usb_linux_full_speed_compat(dev)) {
+ dev->dev.speedmask |= USB_SPEED_MASK_FULL;
+ }
printf("husb: grabbed usb device %d.%d\n", bus_num, addr);
prod_name);
}
+ ret = usb_device_attach(&dev->dev);
+ if (ret) {
+ goto fail;
+ }
+
/* USB devio uses 'write' flag to check for async completions */
qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
- usb_device_attach(&dev->dev);
return 0;
fail:
return 0;
}
-static void usb_host_exit_notifier(struct Notifier* n)
+static void usb_host_exit_notifier(struct Notifier *n, void *data)
{
USBHostDevice *s = container_of(n, USBHostDevice, exit);
DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0),
DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0),
+ DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4),
DEFINE_PROP_END_OF_LIST(),
},
};
projects / qemu.git / blobdiff