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Merge remote-tracking branch 'kraxel/usb.31' into staging

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This commit is contained in:
Anthony Liguori 2011-11-21 14:44:04 -06:00
commit a3baf1be67
3 changed files with 42 additions and 31 deletions
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1
hw/usb-ehci.c
View File

@ -2046,6 +2046,7 @@ static void ehci_advance_state(EHCIState *ehci,
break;
case EST_WRITEBACK:
assert(q != NULL);
again = ehci_state_writeback(q, async);
break;

65
hw/usb-msd.c
View File

@ -38,6 +38,13 @@ enum USBMSDMode {
USB_MSDM_CSW /* Command Status. */
};
struct usb_msd_csw {
uint32_t sig;
uint32_t tag;
uint32_t residue;
uint8_t status;
};
typedef struct {
USBDevice dev;
enum USBMSDMode mode;
@ -45,14 +52,13 @@ typedef struct {
uint8_t *scsi_buf;
uint32_t data_len;
uint32_t residue;
uint32_t tag;
struct usb_msd_csw csw;
SCSIRequest *req;
SCSIBus bus;
BlockConf conf;
char *serial;
SCSIDevice *scsi_dev;
uint32_t removable;
int result;
/* For async completion. */
USBPacket *packet;
} MSDState;
@ -67,13 +73,6 @@ struct usb_msd_cbw {
uint8_t cmd[16];
};
struct usb_msd_csw {
uint32_t sig;
uint32_t tag;
uint32_t residue;
uint8_t status;
};
enum {
STR_MANUFACTURER = 1,
STR_PRODUCT,
@ -191,17 +190,15 @@ static void usb_msd_copy_data(MSDState *s, USBPacket *p)
static void usb_msd_send_status(MSDState *s, USBPacket *p)
{
struct usb_msd_csw csw;
int len;
csw.sig = cpu_to_le32(0x53425355);
csw.tag = cpu_to_le32(s->tag);
csw.residue = s->residue;
csw.status = s->result;
DPRINTF("Command status %d tag 0x%x, len %zd\n",
s->csw.status, s->csw.tag, p->iov.size);
len = MIN(sizeof(csw), p->iov.size);
usb_packet_copy(p, &csw, len);
p->result = len;
assert(s->csw.sig == 0x53425355);
len = MIN(sizeof(s->csw), p->iov.size);
usb_packet_copy(p, &s->csw, len);
memset(&s->csw, 0, sizeof(s->csw));
}
static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len)
@ -231,9 +228,14 @@ static void usb_msd_command_complete(SCSIRequest *req, uint32_t status)
MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent);
USBPacket *p = s->packet;
DPRINTF("Command complete %d\n", status);
DPRINTF("Command complete %d tag 0x%x\n", status, req->tag);
s->residue = s->data_len;
s->result = status != 0;
s->csw.sig = cpu_to_le32(0x53425355);
s->csw.tag = cpu_to_le32(req->tag);
s->csw.residue = s->residue;
s->csw.status = status != 0;
if (s->packet) {
if (s->data_len == 0 && s->mode == USB_MSDM_DATAOUT) {
/* A deferred packet with no write data remaining must be
@ -334,6 +336,7 @@ static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p)
static int usb_msd_handle_data(USBDevice *dev, USBPacket *p)
{
MSDState *s = (MSDState *)dev;
uint32_t tag;
int ret = 0;
struct usb_msd_cbw cbw;
uint8_t devep = p->devep;
@ -360,7 +363,7 @@ static int usb_msd_handle_data(USBDevice *dev, USBPacket *p)
fprintf(stderr, "usb-msd: Bad LUN %d\n", cbw.lun);
goto fail;
}
s->tag = le32_to_cpu(cbw.tag);
tag = le32_to_cpu(cbw.tag);
s->data_len = le32_to_cpu(cbw.data_len);
if (s->data_len == 0) {
s->mode = USB_MSDM_CSW;
@ -370,14 +373,12 @@ static int usb_msd_handle_data(USBDevice *dev, USBPacket *p)
s->mode = USB_MSDM_DATAOUT;
}
DPRINTF("Command tag 0x%x flags %08x len %d data %d\n",
s->tag, cbw.flags, cbw.cmd_len, s->data_len);
tag, cbw.flags, cbw.cmd_len, s->data_len);
s->residue = 0;
s->scsi_len = 0;
s->req = scsi_req_new(s->scsi_dev, s->tag, 0, cbw.cmd, NULL);
s->req = scsi_req_new(s->scsi_dev, tag, 0, cbw.cmd, NULL);
scsi_req_enqueue(s->req);
/* ??? Should check that USB and SCSI data transfer
directions match. */
if (s->mode != USB_MSDM_CSW && s->residue == 0) {
if (s->req && s->req->cmd.xfer != SCSI_XFER_NONE) {
scsi_req_continue(s->req);
}
ret = p->result;
@ -432,15 +433,19 @@ static int usb_msd_handle_data(USBDevice *dev, USBPacket *p)
break;
case USB_MSDM_CSW:
DPRINTF("Command status %d tag 0x%x, len %zd\n",
s->result, s->tag, p->iov.size);
if (p->iov.size < 13) {
goto fail;
}
usb_msd_send_status(s, p);
s->mode = USB_MSDM_CBW;
ret = 13;
if (s->req) {
/* still in flight */
s->packet = p;
ret = USB_RET_ASYNC;
} else {
usb_msd_send_status(s, p);
s->mode = USB_MSDM_CBW;
ret = 13;
}
break;
case USB_MSDM_DATAIN:

7
usb-linux.c
View File

@ -1568,7 +1568,12 @@ static int usb_host_scan_dev(void *opaque, USBScanFunc *func)
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,
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);
if (ret) {
goto the_end;