#include <dirent.h>
#include <sys/ioctl.h>
-#include <signal.h>
#include <linux/usbdevice_fs.h>
#include <linux/version.h>
void *data;
};
-struct usb_ctrlrequest {
- uint8_t bRequestType;
- uint8_t bRequest;
- uint16_t wValue;
- uint16_t wIndex;
- uint16_t wLength;
-};
-
-typedef int USBScanFunc(void *opaque, int bus_num, int addr, int devpath,
+typedef int USBScanFunc(void *opaque, int bus_num, int addr, char *port,
int class_id, int vendor_id, int product_id,
const char *product_name, int speed);
#define USBPROCBUS_PATH "/proc/bus/usb"
#define PRODUCT_NAME_SZ 32
-#define MAX_ENDPOINTS 16
+#define MAX_ENDPOINTS 15
+#define MAX_PORTLEN 16
#define USBDEVBUS_PATH "/dev/bus/usb"
#define USBSYSBUS_PATH "/sys/bus/usb"
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;
-};
-
-enum {
- CTRL_STATE_IDLE = 0,
- CTRL_STATE_SETUP,
- CTRL_STATE_DATA,
- CTRL_STATE_ACK
-};
-
-/*
- * Control transfer state.
- * Note that 'buffer' _must_ follow 'req' field because
- * we need contigious buffer when we submit control URB.
- */
-struct ctrl_struct {
- uint16_t len;
- uint16_t offset;
- uint8_t state;
- struct usb_ctrlrequest req;
- uint8_t buffer[8192];
+ uint8_t iso_started;
+ AsyncURB *iso_urb;
+ int iso_urb_idx;
+ int iso_buffer_used;
+ int max_packet_size;
+ int inflight;
};
struct USBAutoFilter {
uint32_t bus_num;
uint32_t addr;
+ char *port;
uint32_t vendor_id;
uint32_t product_id;
};
USBDevice dev;
int fd;
- uint8_t descr[1024];
+ uint8_t descr[8192];
int descr_len;
int configuration;
int ninterfaces;
int closing;
+ uint32_t iso_urb_count;
Notifier exit;
- struct ctrl_struct ctrl;
struct endp_data endp_table[MAX_ENDPOINTS];
+ QLIST_HEAD(, AsyncURB) aurbs;
/* Host side address */
int bus_num;
int addr;
- int devpath;
+ char port[MAX_PORTLEN];
struct USBAutoFilter match;
QTAILQ_ENTRY(USBHostDevice) next;
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 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 get_endp(s, ep)->iso_started;
+}
+
+static void clear_iso_started(USBHostDevice *s, int ep)
+{
+ get_endp(s, ep)->iso_started = 0;
+}
+
+static void set_iso_started(USBHostDevice *s, int ep)
+{
+ 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)
+{
+ get_endp(s, ep)->iso_urb = iso_urb;
+}
+
+static AsyncURB *get_iso_urb(USBHostDevice *s, int ep)
+{
+ return get_endp(s, ep)->iso_urb;
+}
+
+static void set_iso_urb_idx(USBHostDevice *s, int ep, int i)
+{
+ get_endp(s, ep)->iso_urb_idx = i;
+}
+
+static int get_iso_urb_idx(USBHostDevice *s, int ep)
+{
+ return get_endp(s, ep)->iso_urb_idx;
+}
+
+static void set_iso_buffer_used(USBHostDevice *s, int ep, int i)
+{
+ get_endp(s, ep)->iso_buffer_used = i;
+}
+
+static int get_iso_buffer_used(USBHostDevice *s, int ep)
+{
+ return get_endp(s, ep)->iso_buffer_used;
+}
+
+static void set_max_packet_size(USBHostDevice *s, 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, ep)->max_packet_size = size * microframes;
+}
+
+static int get_max_packet_size(USBHostDevice *s, int ep)
+{
+ return get_endp(s, ep)->max_packet_size;
}
/*
* Async URB state.
- * We always allocate one isoc descriptor even for bulk transfers
+ * We always allocate iso packet descriptors even for bulk transfers
* to simplify allocation and casts.
*/
-typedef struct AsyncURB
+struct AsyncURB
{
struct usbdevfs_urb urb;
- struct usbdevfs_iso_packet_desc isocpd;
+ struct usbdevfs_iso_packet_desc isocpd[ISO_FRAME_DESC_PER_URB];
+ USBHostDevice *hdev;
+ QLIST_ENTRY(AsyncURB) next;
+ /* For regular async urbs */
USBPacket *packet;
- USBHostDevice *hdev;
-} AsyncURB;
+ int more; /* large transfer, more urbs follow */
-static AsyncURB *async_alloc(void)
+ /* For buffered iso handling */
+ int iso_frame_idx; /* -1 means in flight */
+};
+
+static AsyncURB *async_alloc(USBHostDevice *s)
{
- return (AsyncURB *) qemu_mallocz(sizeof(AsyncURB));
+ AsyncURB *aurb = qemu_mallocz(sizeof(AsyncURB));
+ aurb->hdev = s;
+ QLIST_INSERT_HEAD(&s->aurbs, aurb, next);
+ return aurb;
}
static void async_free(AsyncURB *aurb)
{
+ QLIST_REMOVE(aurb, next);
qemu_free(aurb);
}
-static void async_complete_ctrl(USBHostDevice *s, USBPacket *p)
+static void do_disconnect(USBHostDevice *s)
{
- switch(s->ctrl.state) {
- case CTRL_STATE_SETUP:
- if (p->len < s->ctrl.len)
- s->ctrl.len = p->len;
- s->ctrl.state = CTRL_STATE_DATA;
- p->len = 8;
- break;
-
- case CTRL_STATE_ACK:
- s->ctrl.state = CTRL_STATE_IDLE;
- p->len = 0;
- break;
-
- default:
- break;
- }
+ printf("husb: device %d.%d disconnected\n",
+ s->bus_num, s->addr);
+ usb_host_close(s);
+ usb_host_auto_check(NULL);
}
static void async_complete(void *opaque)
{
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) {
- printf("husb: device %d.%d disconnected\n",
- s->bus_num, s->addr);
- usb_host_close(s);
- usb_host_auto_check(NULL);
+ do_disconnect(s);
return;
}
return;
}
- p = aurb->packet;
-
DPRINTF("husb: async completed. aurb %p status %d alen %d\n",
aurb, aurb->urb.status, aurb->urb.actual_length);
+ /* 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;
+ }
+
+ p = aurb->packet;
+
if (p) {
switch (aurb->urb.status) {
case 0:
- p->len = aurb->urb.actual_length;
- if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) {
- async_complete_ctrl(s, p);
- }
+ p->len += aurb->urb.actual_length;
break;
case -EPIPE:
break;
}
- usb_packet_complete(p);
+ if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) {
+ usb_generic_async_ctrl_complete(&s->dev, p);
+ } else if (!aurb->more) {
+ usb_packet_complete(&s->dev, p);
+ }
}
async_free(aurb);
}
}
-static void async_cancel(USBPacket *unused, void *opaque)
+static void usb_host_async_cancel(USBDevice *dev, USBPacket *p)
{
- AsyncURB *aurb = opaque;
- USBHostDevice *s = aurb->hdev;
+ USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev);
+ AsyncURB *aurb;
+
+ QLIST_FOREACH(aurb, &s->aurbs, next) {
+ if (p != aurb->packet) {
+ continue;
+ }
- DPRINTF("husb: async cancel. aurb %p\n", aurb);
+ DPRINTF("husb: async cancel: packet %p, aurb %p\n", p, aurb);
- /* Mark it as dead (see async_complete above) */
- aurb->packet = NULL;
+ /* Mark it as dead (see async_complete above) */
+ aurb->packet = NULL;
- int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
- if (r < 0) {
- DPRINTF("husb: async. discard urb failed errno %d\n", errno);
+ int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
+ if (r < 0) {
+ DPRINTF("husb: async. discard urb failed errno %d\n", errno);
+ }
}
}
static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration)
{
+ const char *op = NULL;
int dev_descr_len, config_descr_len;
int interface, nb_interfaces;
int ret, i;
i = 0;
dev_descr_len = dev->descr[0];
if (dev_descr_len > dev->descr_len) {
- goto fail;
+ fprintf(stderr, "husb: update iface failed. descr too short\n");
+ return 0;
}
i += dev_descr_len;
if (i >= dev->descr_len) {
fprintf(stderr,
"husb: update iface failed. no matching configuration\n");
- goto fail;
+ return 0;
}
nb_interfaces = dev->descr[i + 4];
for (interface = 0; interface < nb_interfaces; interface++) {
ctrl.ioctl_code = USBDEVFS_DISCONNECT;
ctrl.ifno = interface;
+ ctrl.data = 0;
+ op = "USBDEVFS_DISCONNECT";
ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl);
if (ret < 0 && errno != ENODATA) {
- perror("USBDEVFS_DISCONNECT");
goto fail;
}
}
/* XXX: only grab if all interfaces are free */
for (interface = 0; interface < nb_interfaces; interface++) {
+ op = "USBDEVFS_CLAIMINTERFACE";
ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface);
if (ret < 0) {
if (errno == EBUSY) {
} else {
perror("husb: failed to claim interface");
}
- fail:
- return 0;
+ goto fail;
}
}
dev->ninterfaces = nb_interfaces;
dev->configuration = configuration;
return 1;
+
+fail:
+ if (errno == ENODEV) {
+ do_disconnect(dev);
+ }
+ perror(op);
+ return 0;
}
static int usb_host_release_interfaces(USBHostDevice *s)
static int usb_linux_update_endp_table(USBHostDevice *s);
-static int usb_host_handle_data(USBHostDevice *s, USBPacket *p)
+/* iso data is special, we need to keep enough urbs in flight to make sure
+ that the controller never runs out of them, otherwise the device will
+ likely suffer a buffer underrun / overrun. */
+static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, uint8_t ep, int in)
{
- struct usbdevfs_urb *urb;
AsyncURB *aurb;
- int ret;
+ int i, j, len = get_max_packet_size(s, ep);
+
+ 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);
+ aurb[i].urb.type = USBDEVFS_URB_TYPE_ISO;
+ aurb[i].urb.flags = USBDEVFS_URB_ISO_ASAP;
+ aurb[i].urb.number_of_packets = ISO_FRAME_DESC_PER_URB;
+ for (j = 0 ; j < ISO_FRAME_DESC_PER_URB; j++)
+ aurb[i].urb.iso_frame_desc[j].length = len;
+ if (in) {
+ aurb[i].urb.endpoint |= 0x80;
+ /* Mark as fully consumed (idle) */
+ aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB;
+ }
+ }
+ set_iso_urb(s, ep, aurb);
- aurb = async_alloc();
- aurb->hdev = s;
- aurb->packet = p;
+ return aurb;
+}
- urb = &aurb->urb;
+static void usb_host_stop_n_free_iso(USBHostDevice *s, uint8_t ep)
+{
+ AsyncURB *aurb;
+ int i, ret, killed = 0, free = 1;
+
+ aurb = get_iso_urb(s, ep);
+ if (!aurb) {
+ return;
+ }
+
+ 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]);
+ if (ret < 0) {
+ printf("husb: discard isoc in urb failed errno %d\n", errno);
+ free = 0;
+ continue;
+ }
+ killed++;
+ }
+ }
+
+ /* Make sure any urbs we've killed are reaped before we free them */
+ if (killed) {
+ async_complete(s);
+ }
+
+ for (i = 0; i < s->iso_urb_count; i++) {
+ qemu_free(aurb[i].urb.buffer);
+ }
+
+ if (free)
+ qemu_free(aurb);
+ else
+ printf("husb: leaking iso urbs because of discard failure\n");
+ set_iso_urb(s, ep, NULL);
+ set_iso_urb_idx(s, ep, 0);
+ clear_iso_started(s, ep);
+}
+
+static int urb_status_to_usb_ret(int status)
+{
+ switch (status) {
+ case -EPIPE:
+ return USB_RET_STALL;
+ default:
+ return USB_RET_NAK;
+ }
+}
+
+static int usb_host_handle_iso_data(USBHostDevice *s, USBPacket *p, int in)
+{
+ AsyncURB *aurb;
+ int i, j, ret, max_packet_size, offset, len = 0;
+
+ max_packet_size = get_max_packet_size(s, p->devep);
+ if (max_packet_size == 0)
+ return USB_RET_NAK;
+
+ aurb = get_iso_urb(s, p->devep);
+ if (!aurb) {
+ aurb = usb_host_alloc_iso(s, p->devep, in);
+ }
+
+ i = get_iso_urb_idx(s, p->devep);
+ j = aurb[i].iso_frame_idx;
+ if (j >= 0 && j < ISO_FRAME_DESC_PER_URB) {
+ if (in) {
+ /* Check urb status */
+ if (aurb[i].urb.status) {
+ len = urb_status_to_usb_ret(aurb[i].urb.status);
+ /* Move to the next urb */
+ aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB - 1;
+ /* Check frame status */
+ } else if (aurb[i].urb.iso_frame_desc[j].status) {
+ len = urb_status_to_usb_ret(
+ aurb[i].urb.iso_frame_desc[j].status);
+ /* Check the frame fits */
+ } else if (aurb[i].urb.iso_frame_desc[j].actual_length > p->len) {
+ printf("husb: received iso data is larger then packet\n");
+ len = USB_RET_NAK;
+ /* All good copy data over */
+ } else {
+ len = aurb[i].urb.iso_frame_desc[j].actual_length;
+ memcpy(p->data,
+ aurb[i].urb.buffer +
+ j * aurb[i].urb.iso_frame_desc[0].length,
+ len);
+ }
+ } else {
+ len = p->len;
+ offset = (j == 0) ? 0 : get_iso_buffer_used(s, p->devep);
+
+ /* Check the frame fits */
+ if (len > max_packet_size) {
+ printf("husb: send iso data is larger then max packet size\n");
+ return USB_RET_NAK;
+ }
+
+ /* All good copy data over */
+ memcpy(aurb[i].urb.buffer + offset, p->data, len);
+ aurb[i].urb.iso_frame_desc[j].length = len;
+ offset += len;
+ set_iso_buffer_used(s, p->devep, offset);
+
+ /* Start the stream once we have buffered enough data */
+ if (!is_iso_started(s, p->devep) && i == 1 && j == 8) {
+ set_iso_started(s, p->devep);
+ }
+ }
+ aurb[i].iso_frame_idx++;
+ if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
+ i = (i + 1) % s->iso_urb_count;
+ set_iso_urb_idx(s, p->devep, i);
+ }
+ } else {
+ if (in) {
+ set_iso_started(s, p->devep);
+ } else {
+ DPRINTF("hubs: iso out error no free buffer, dropping packet\n");
+ }
+ }
+
+ if (is_iso_started(s, p->devep)) {
+ /* (Re)-submit all fully consumed / filled urbs */
+ 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) {
+ printf("husb error submitting iso urb %d: %d\n", i, errno);
+ if (!in || len == 0) {
+ switch(errno) {
+ case ETIMEDOUT:
+ len = USB_RET_NAK;
+ break;
+ case EPIPE:
+ default:
+ len = USB_RET_STALL;
+ }
+ }
+ break;
+ }
+ aurb[i].iso_frame_idx = -1;
+ change_iso_inflight(s, p->devep, +1);
+ }
+ }
+ }
+
+ return len;
+}
+
+static int usb_host_handle_data(USBDevice *dev, USBPacket *p)
+{
+ USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev);
+ struct usbdevfs_urb *urb;
+ AsyncURB *aurb;
+ int ret, rem;
+ uint8_t *pbuf;
+ uint8_t ep;
+
+ if (!is_valid(s, p->devep)) {
+ return USB_RET_NAK;
+ }
if (p->pid == USB_TOKEN_IN) {
- urb->endpoint = p->devep | 0x80;
+ ep = p->devep | 0x80;
} else {
- urb->endpoint = p->devep;
+ ep = p->devep;
}
if (is_halted(s, p->devep)) {
- ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &urb->endpoint);
+ ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &ep);
if (ret < 0) {
DPRINTF("husb: failed to clear halt. ep 0x%x errno %d\n",
- urb->endpoint, errno);
+ ep, errno);
return USB_RET_NAK;
}
clear_halt(s, p->devep);
}
- urb->buffer = p->data;
- urb->buffer_length = p->len;
-
if (is_isoc(s, p->devep)) {
- /* Setup ISOC transfer */
- urb->type = USBDEVFS_URB_TYPE_ISO;
- urb->flags = USBDEVFS_URB_ISO_ASAP;
- urb->number_of_packets = 1;
- urb->iso_frame_desc[0].length = p->len;
- } else {
- /* Setup bulk transfer */
- urb->type = USBDEVFS_URB_TYPE_BULK;
+ return usb_host_handle_iso_data(s, p, p->pid == USB_TOKEN_IN);
}
- urb->usercontext = s;
+ rem = p->len;
+ pbuf = p->data;
+ p->len = 0;
+ while (rem) {
+ aurb = async_alloc(s);
+ aurb->packet = p;
- ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb);
+ urb = &aurb->urb;
+ urb->endpoint = ep;
+ urb->type = USBDEVFS_URB_TYPE_BULK;
+ urb->usercontext = s;
+ urb->buffer = pbuf;
- DPRINTF("husb: data submit. ep 0x%x len %u aurb %p\n",
- urb->endpoint, p->len, aurb);
+ if (rem > MAX_USBFS_BUFFER_SIZE) {
+ urb->buffer_length = MAX_USBFS_BUFFER_SIZE;
+ aurb->more = 1;
+ } else {
+ urb->buffer_length = rem;
+ aurb->more = 0;
+ }
+ pbuf += urb->buffer_length;
+ rem -= urb->buffer_length;
- if (ret < 0) {
- DPRINTF("husb: submit failed. errno %d\n", errno);
- async_free(aurb);
+ ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb);
- switch(errno) {
- case ETIMEDOUT:
- return USB_RET_NAK;
- case EPIPE:
- default:
- return USB_RET_STALL;
+ DPRINTF("husb: data submit: ep 0x%x, len %u, more %d, packet %p, aurb %p\n",
+ urb->endpoint, urb->buffer_length, aurb->more, p, aurb);
+
+ if (ret < 0) {
+ DPRINTF("husb: submit failed. errno %d\n", errno);
+ async_free(aurb);
+
+ switch(errno) {
+ case ETIMEDOUT:
+ return USB_RET_NAK;
+ case EPIPE:
+ default:
+ return USB_RET_STALL;
+ }
}
}
- usb_defer_packet(p, async_cancel, aurb);
return USB_RET_ASYNC;
}
static int usb_host_set_interface(USBHostDevice *s, int iface, int alt)
{
struct usbdevfs_setinterface si;
- int ret;
+ int i, ret;
+
+ for (i = 1; i <= MAX_ENDPOINTS; i++) {
+ if (is_isoc(s, i)) {
+ usb_host_stop_n_free_iso(s, i);
+ }
+ }
si.interface = iface;
si.altsetting = alt;
return 0;
}
-static int usb_host_handle_control(USBHostDevice *s, USBPacket *p)
+static int usb_host_handle_control(USBDevice *dev, USBPacket *p,
+ int request, int value, int index, int length, uint8_t *data)
{
+ USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev);
struct usbdevfs_urb *urb;
AsyncURB *aurb;
- int ret, value, index;
- int buffer_len;
+ int ret;
/*
* Process certain standard device requests.
* These are infrequent and are processed synchronously.
*/
- value = le16_to_cpu(s->ctrl.req.wValue);
- index = le16_to_cpu(s->ctrl.req.wIndex);
+ /* Note request is (bRequestType << 8) | bRequest */
DPRINTF("husb: ctrl type 0x%x req 0x%x val 0x%x index %u len %u\n",
- s->ctrl.req.bRequestType, s->ctrl.req.bRequest, value, index,
- s->ctrl.len);
+ request >> 8, request & 0xff, value, index, length);
- if (s->ctrl.req.bRequestType == 0) {
- switch (s->ctrl.req.bRequest) {
- case USB_REQ_SET_ADDRESS:
- return usb_host_set_address(s, value);
+ switch (request) {
+ case DeviceOutRequest | USB_REQ_SET_ADDRESS:
+ return usb_host_set_address(s, value);
- case USB_REQ_SET_CONFIGURATION:
- return usb_host_set_config(s, value & 0xff);
- }
- }
+ case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
+ return usb_host_set_config(s, value & 0xff);
- if (s->ctrl.req.bRequestType == 1 &&
- s->ctrl.req.bRequest == USB_REQ_SET_INTERFACE) {
+ case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
return usb_host_set_interface(s, index, value);
}
/* The rest are asynchronous */
- buffer_len = 8 + s->ctrl.len;
- if (buffer_len > sizeof(s->ctrl.buffer)) {
- fprintf(stderr, "husb: ctrl buffer too small (%u > %zu)\n",
- buffer_len, sizeof(s->ctrl.buffer));
+ if (length > sizeof(dev->data_buf)) {
+ fprintf(stderr, "husb: ctrl buffer too small (%d > %zu)\n",
+ length, sizeof(dev->data_buf));
return USB_RET_STALL;
}
- aurb = async_alloc();
- aurb->hdev = s;
+ aurb = async_alloc(s);
aurb->packet = p;
/*
* Setup ctrl transfer.
*
- * s->ctrl is layed out such that data buffer immediately follows
+ * s->ctrl is laid out such that data buffer immediately follows
* 'req' struct which is exactly what usbdevfs expects.
*/
urb = &aurb->urb;
urb->type = USBDEVFS_URB_TYPE_CONTROL;
urb->endpoint = p->devep;
- urb->buffer = &s->ctrl.req;
- urb->buffer_length = buffer_len;
+ urb->buffer = &dev->setup_buf;
+ urb->buffer_length = length + 8;
urb->usercontext = s;
}
}
- usb_defer_packet(p, async_cancel, aurb);
return USB_RET_ASYNC;
}
-static int do_token_setup(USBDevice *dev, USBPacket *p)
-{
- USBHostDevice *s = (USBHostDevice *) dev;
- int ret = 0;
-
- if (p->len != 8) {
- return USB_RET_STALL;
- }
-
- memcpy(&s->ctrl.req, p->data, 8);
- s->ctrl.len = le16_to_cpu(s->ctrl.req.wLength);
- s->ctrl.offset = 0;
- s->ctrl.state = CTRL_STATE_SETUP;
-
- if (s->ctrl.req.bRequestType & USB_DIR_IN) {
- ret = usb_host_handle_control(s, p);
- if (ret < 0) {
- return ret;
- }
-
- if (ret < s->ctrl.len) {
- s->ctrl.len = ret;
- }
- s->ctrl.state = CTRL_STATE_DATA;
- } else {
- if (s->ctrl.len == 0) {
- s->ctrl.state = CTRL_STATE_ACK;
- } else {
- s->ctrl.state = CTRL_STATE_DATA;
- }
- }
-
- return ret;
-}
-
-static int do_token_in(USBDevice *dev, USBPacket *p)
-{
- USBHostDevice *s = (USBHostDevice *) dev;
- int ret = 0;
-
- if (p->devep != 0) {
- return usb_host_handle_data(s, p);
- }
-
- switch(s->ctrl.state) {
- case CTRL_STATE_ACK:
- if (!(s->ctrl.req.bRequestType & USB_DIR_IN)) {
- ret = usb_host_handle_control(s, p);
- if (ret == USB_RET_ASYNC) {
- return USB_RET_ASYNC;
- }
- s->ctrl.state = CTRL_STATE_IDLE;
- return ret > 0 ? 0 : ret;
- }
-
- return 0;
-
- case CTRL_STATE_DATA:
- if (s->ctrl.req.bRequestType & USB_DIR_IN) {
- int len = s->ctrl.len - s->ctrl.offset;
- if (len > p->len) {
- len = p->len;
- }
- memcpy(p->data, s->ctrl.buffer + s->ctrl.offset, len);
- s->ctrl.offset += len;
- if (s->ctrl.offset >= s->ctrl.len) {
- s->ctrl.state = CTRL_STATE_ACK;
- }
- return len;
- }
-
- s->ctrl.state = CTRL_STATE_IDLE;
- return USB_RET_STALL;
-
- default:
- return USB_RET_STALL;
- }
-}
-
-static int do_token_out(USBDevice *dev, USBPacket *p)
-{
- USBHostDevice *s = (USBHostDevice *) dev;
-
- if (p->devep != 0) {
- return usb_host_handle_data(s, p);
- }
-
- switch(s->ctrl.state) {
- case CTRL_STATE_ACK:
- if (s->ctrl.req.bRequestType & USB_DIR_IN) {
- s->ctrl.state = CTRL_STATE_IDLE;
- /* transfer OK */
- } else {
- /* ignore additional output */
- }
- return 0;
-
- case CTRL_STATE_DATA:
- if (!(s->ctrl.req.bRequestType & USB_DIR_IN)) {
- int len = s->ctrl.len - s->ctrl.offset;
- if (len > p->len) {
- len = p->len;
- }
- memcpy(s->ctrl.buffer + s->ctrl.offset, p->data, len);
- s->ctrl.offset += len;
- if (s->ctrl.offset >= s->ctrl.len) {
- s->ctrl.state = CTRL_STATE_ACK;
- }
- return len;
- }
-
- s->ctrl.state = CTRL_STATE_IDLE;
- return USB_RET_STALL;
-
- default:
- return USB_RET_STALL;
- }
-}
-
-/*
- * Packet handler.
- * Called by the HC (host controller).
- *
- * Returns length of the transaction or one of the USB_RET_XXX codes.
- */
-static int usb_host_handle_packet(USBDevice *s, USBPacket *p)
-{
- switch(p->pid) {
- case USB_MSG_ATTACH:
- s->state = USB_STATE_ATTACHED;
- return 0;
-
- case USB_MSG_DETACH:
- s->state = USB_STATE_NOTATTACHED;
- return 0;
-
- case USB_MSG_RESET:
- s->remote_wakeup = 0;
- s->addr = 0;
- s->state = USB_STATE_DEFAULT;
- s->info->handle_reset(s);
- return 0;
- }
-
- /* Rest of the PIDs must match our address */
- if (s->state < USB_STATE_DEFAULT || p->devaddr != s->addr) {
- return USB_RET_NODEV;
- }
-
- switch (p->pid) {
- case USB_TOKEN_SETUP:
- return do_token_setup(s, p);
-
- case USB_TOKEN_IN:
- return do_token_in(s, p);
-
- case USB_TOKEN_OUT:
- return do_token_out(s, p);
-
- default:
- return USB_RET_STALL;
- }
-}
-
static int usb_linux_get_configuration(USBHostDevice *s)
{
uint8_t configuration;
char device_name[32], line[1024];
int configuration;
- sprintf(device_name, "%d-%d", s->bus_num, s->devpath);
+ sprintf(device_name, "%d-%s", s->bus_num, s->port);
if (!usb_host_read_file(line, sizeof(line), "bConfigurationValue",
device_name)) {
return configuration;
}
+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;
+
+ 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) {
+ /* Assume alt 0 on error */
+ return 0;
+ }
+
+ return alt_setting;
+}
+
/* 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;
+ int interface, length, i;
+
+ for (i = 0; i < MAX_ENDPOINTS; i++)
+ s->endp_table[i].type = INVALID_EP_TYPE;
i = usb_linux_get_configuration(s);
if (i < 0)
}
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) {
- alt_interface = interface;
- }
+ alt_interface = usb_linux_get_alt_setting(s, configuration, interface);
/* the current interface descriptor is the active interface
* and has endpoints */
}
devep = descriptors[i + 2];
+ if ((devep & 0x0f) == 0) {
+ fprintf(stderr, "usb-linux: invalid ep descriptor, ep == 0\n");
+ 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, (devep & 0xf), descriptors + i);
break;
case 0x02:
type = USBDEVFS_URB_TYPE_BULK;
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, int devpath, const char *prod_name)
+ int addr, char *port, const char *prod_name, int speed)
{
int fd = -1, ret;
- struct usbdevfs_connectinfo ci;
char buf[1024];
if (dev->fd != -1) {
dev->bus_num = bus_num;
dev->addr = addr;
- dev->devpath = devpath;
+ strcpy(dev->port, port);
dev->fd = fd;
/* read the device description */
goto fail;
}
- ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci);
- if (ret < 0) {
- perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
- goto fail;
- }
-
- printf("husb: grabbed usb device %d.%d\n", bus_num, addr);
-
ret = usb_linux_update_endp_table(dev);
if (ret) {
goto fail;
}
- if (ci.slow) {
- dev->dev.speed = USB_SPEED_LOW;
- } else {
- dev->dev.speed = USB_SPEED_HIGH;
+ if (speed == -1) {
+ struct usbdevfs_connectinfo ci;
+
+ ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci);
+ if (ret < 0) {
+ perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
+ goto fail;
+ }
+
+ if (ci.slow) {
+ speed = USB_SPEED_LOW;
+ } else {
+ speed = USB_SPEED_HIGH;
+ }
}
+ 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);
if (!prod_name || prod_name[0] == '\0') {
snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc),
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:
- dev->fd = -1;
- if (fd != -1) {
- close(fd);
+ if (dev->fd != -1) {
+ close(dev->fd);
+ dev->fd = -1;
}
return -1;
}
static int usb_host_close(USBHostDevice *dev)
{
- if (dev->fd == -1) {
+ int i;
+
+ if (dev->fd == -1 || !dev->dev.attached) {
return -1;
}
qemu_set_fd_handler(dev->fd, NULL, NULL, NULL);
dev->closing = 1;
+ for (i = 1; i <= MAX_ENDPOINTS; i++) {
+ if (is_isoc(dev, i)) {
+ usb_host_stop_n_free_iso(dev, i);
+ }
+ }
async_complete(dev);
dev->closing = 0;
usb_device_detach(&dev->dev);
.qdev.name = "usb-host",
.qdev.size = sizeof(USBHostDevice),
.init = usb_host_initfn,
- .handle_packet = usb_host_handle_packet,
+ .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",
.qdev.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),
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(),
},
};
}
device_count = 0;
- bus_num = addr = speed = class_id = product_id = vendor_id = 0;
+ bus_num = addr = class_id = product_id = vendor_id = 0;
+ speed = -1; /* Can't get the speed from /[proc|dev]/bus/usb/devices */
for(;;) {
if (fgets(line, sizeof(line), f) == NULL) {
break;
if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) {
goto fail;
}
- if (!strcmp(buf, "480")) {
+ 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;
{
DIR *dir = NULL;
char line[1024];
- int bus_num, addr, devpath, speed, class_id, product_id, vendor_id;
+ int bus_num, addr, speed, class_id, product_id, vendor_id;
int ret = 0;
+ char port[MAX_PORTLEN];
char product_name[512];
struct dirent *de;
while ((de = readdir(dir))) {
if (de->d_name[0] != '.' && !strchr(de->d_name, ':')) {
- char *tmpstr = de->d_name;
- if (!strncmp(de->d_name, "usb", 3)) {
- tmpstr += 3;
- }
- if (sscanf(tmpstr, "%d-%d", &bus_num, &devpath) < 1) {
- goto the_end;
+ if (sscanf(de->d_name, "%d-%7[0-9.]", &bus_num, port) < 2) {
+ continue;
}
if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name)) {
if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) {
goto the_end;
}
- if (!strcmp(line, "480\n")) {
+ if (!strcmp(line, "5000\n")) {
+ speed = USB_SPEED_SUPER;
+ } else if (!strcmp(line, "480\n")) {
speed = USB_SPEED_HIGH;
} else if (!strcmp(line, "1.5\n")) {
speed = USB_SPEED_LOW;
speed = USB_SPEED_FULL;
}
- ret = func(opaque, bus_num, addr, devpath, class_id, vendor_id,
+ ret = func(opaque, bus_num, addr, port, class_id, vendor_id,
product_id, product_name, speed);
if (ret) {
goto the_end;
static QEMUTimer *usb_auto_timer;
-static int usb_host_auto_scan(void *opaque, int bus_num, int addr, int devpath,
+static int usb_host_auto_scan(void *opaque, int bus_num, int addr, char *port,
int class_id, int vendor_id, int product_id,
const char *product_name, int speed)
{
if (f->addr > 0 && f->addr != addr) {
continue;
}
+ if (f->port != NULL && (port == NULL || strcmp(f->port, port) != 0)) {
+ continue;
+ }
if (f->vendor_id > 0 && f->vendor_id != vendor_id) {
continue;
}
DPRINTF("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
- usb_host_open(s, bus_num, addr, devpath, product_name);
+ usb_host_open(s, bus_num, addr, port, product_name, speed);
+ break;
}
return 0;
return p->class_name;
}
-static void usb_info_device(Monitor *mon, int bus_num, int addr, int class_id,
- int vendor_id, int product_id,
+static void usb_info_device(Monitor *mon, int bus_num, int addr, char *port,
+ int class_id, int vendor_id, int product_id,
const char *product_name,
int speed)
{
case USB_SPEED_HIGH:
speed_str = "480";
break;
+ case USB_SPEED_SUPER:
+ speed_str = "5000";
+ break;
default:
speed_str = "?";
break;
}
- monitor_printf(mon, " Device %d.%d, speed %s Mb/s\n",
- bus_num, addr, speed_str);
+ monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
+ bus_num, addr, port, speed_str);
class_str = usb_class_str(class_id);
if (class_str) {
monitor_printf(mon, " %s:", class_str);
}
static int usb_host_info_device(void *opaque, int bus_num, int addr,
- int devpath, int class_id,
+ char *path, int class_id,
int vendor_id, int product_id,
const char *product_name,
int speed)
{
Monitor *mon = opaque;
- usb_info_device(mon, bus_num, addr, class_id, vendor_id, product_id,
+ usb_info_device(mon, bus_num, addr, path, class_id, vendor_id, product_id,
product_name, speed);
return 0;
}
dec2str(f->addr, addr, sizeof(addr));
hex2str(f->vendor_id, vid, sizeof(vid));
hex2str(f->product_id, pid, sizeof(pid));
- monitor_printf(mon, " Device %s.%s ID %s:%s\n",
- bus, addr, vid, pid);
+ monitor_printf(mon, " Bus %s, Addr %s, Port %s, ID %s:%s\n",
+ bus, addr, f->port ? f->port : "*", vid, pid);
}
}
projects / qemu.git / blobdiff