auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 578 deletions

diff --git a/hw/usb-msd.c b/hw/usb-msd.c
deleted file mode 100644
index f7ad25e..0000000
--- a/hw/usb-msd.c
+++ /dev/null
@@ -1,578 +0,0 @@
-/*
- * USB Mass Storage Device emulation
- *
- * Copyright (c) 2006 CodeSourcery.
- * Written by Paul Brook
- *
- * This code is licenced under the LGPL.
- */
-
-#include "qemu-common.h"
-#include "usb.h"
-#include "block.h"
-#include "scsi-disk.h"
-
-//#define DEBUG_MSD
-
-#ifdef DEBUG_MSD
-#define DPRINTF(fmt, args...) \
-do { printf("usb-msd: " fmt , ##args); } while (0)
-#else
-#define DPRINTF(fmt, args...) do {} while(0)
-#endif
-
-/* USB requests.  */
-#define MassStorageReset  0xff
-#define GetMaxLun         0xfe
-
-enum USBMSDMode {
-    USB_MSDM_CBW, /* Command Block.  */
-    USB_MSDM_DATAOUT, /* Tranfer data to device.  */
-    USB_MSDM_DATAIN, /* Transfer data from device.  */
-    USB_MSDM_CSW /* Command Status.  */
-};
-
-typedef struct {
-    USBDevice dev;
-    enum USBMSDMode mode;
-    uint32_t scsi_len;
-    uint8_t *scsi_buf;
-    uint32_t usb_len;
-    uint8_t *usb_buf;
-    uint32_t data_len;
-    uint32_t residue;
-    uint32_t tag;
-    BlockDriverState *bs;
-    SCSIDevice *scsi_dev;
-    int result;
-    /* For async completion.  */
-    USBPacket *packet;
-} MSDState;
-
-struct usb_msd_cbw {
-    uint32_t sig;
-    uint32_t tag;
-    uint32_t data_len;
-    uint8_t flags;
-    uint8_t lun;
-    uint8_t cmd_len;
-    uint8_t cmd[16];
-};
-
-struct usb_msd_csw {
-    uint32_t sig;
-    uint32_t tag;
-    uint32_t residue;
-    uint8_t status;
-};
-
-static const uint8_t qemu_msd_dev_descriptor[] = {
-	0x12,       /*  u8 bLength; */
-	0x01,       /*  u8 bDescriptorType; Device */
-	0x00, 0x01, /*  u16 bcdUSB; v1.0 */
-
-	0x00,	    /*  u8  bDeviceClass; */
-	0x00,	    /*  u8  bDeviceSubClass; */
-	0x00,       /*  u8  bDeviceProtocol; [ low/full speeds only ] */
-	0x08,       /*  u8  bMaxPacketSize0; 8 Bytes */
-
-        /* Vendor and product id are arbitrary.  */
-	0x00, 0x00, /*  u16 idVendor; */
- 	0x00, 0x00, /*  u16 idProduct; */
-	0x00, 0x00, /*  u16 bcdDevice */
-
-	0x01,       /*  u8  iManufacturer; */
-	0x02,       /*  u8  iProduct; */
-	0x03,       /*  u8  iSerialNumber; */
-	0x01        /*  u8  bNumConfigurations; */
-};
-
-static const uint8_t qemu_msd_config_descriptor[] = {
-
-	/* one configuration */
-	0x09,       /*  u8  bLength; */
-	0x02,       /*  u8  bDescriptorType; Configuration */
-	0x20, 0x00, /*  u16 wTotalLength; */
-	0x01,       /*  u8  bNumInterfaces; (1) */
-	0x01,       /*  u8  bConfigurationValue; */
-	0x00,       /*  u8  iConfiguration; */
-	0xc0,       /*  u8  bmAttributes;
-				 Bit 7: must be set,
-				     6: Self-powered,
-				     5: Remote wakeup,
-				     4..0: resvd */
-	0x00,       /*  u8  MaxPower; */
-
-	/* one interface */
-	0x09,       /*  u8  if_bLength; */
-	0x04,       /*  u8  if_bDescriptorType; Interface */
-	0x00,       /*  u8  if_bInterfaceNumber; */
-	0x00,       /*  u8  if_bAlternateSetting; */
-	0x02,       /*  u8  if_bNumEndpoints; */
-	0x08,       /*  u8  if_bInterfaceClass; MASS STORAGE */
-	0x06,       /*  u8  if_bInterfaceSubClass; SCSI */
-	0x50,       /*  u8  if_bInterfaceProtocol; Bulk Only */
-	0x00,       /*  u8  if_iInterface; */
-
-	/* Bulk-In endpoint */
-	0x07,       /*  u8  ep_bLength; */
-	0x05,       /*  u8  ep_bDescriptorType; Endpoint */
-	0x81,       /*  u8  ep_bEndpointAddress; IN Endpoint 1 */
- 	0x02,       /*  u8  ep_bmAttributes; Bulk */
- 	0x40, 0x00, /*  u16 ep_wMaxPacketSize; */
-	0x00,       /*  u8  ep_bInterval; */
-
-	/* Bulk-Out endpoint */
-	0x07,       /*  u8  ep_bLength; */
-	0x05,       /*  u8  ep_bDescriptorType; Endpoint */
-	0x02,       /*  u8  ep_bEndpointAddress; OUT Endpoint 2 */
- 	0x02,       /*  u8  ep_bmAttributes; Bulk */
- 	0x40, 0x00, /*  u16 ep_wMaxPacketSize; */
-	0x00        /*  u8  ep_bInterval; */
-};
-
-static void usb_msd_copy_data(MSDState *s)
-{
-    uint32_t len;
-    len = s->usb_len;
-    if (len > s->scsi_len)
-        len = s->scsi_len;
-    if (s->mode == USB_MSDM_DATAIN) {
-        memcpy(s->usb_buf, s->scsi_buf, len);
-    } else {
-        memcpy(s->scsi_buf, s->usb_buf, len);
-    }
-    s->usb_len -= len;
-    s->scsi_len -= len;
-    s->usb_buf += len;
-    s->scsi_buf += len;
-    s->data_len -= len;
-    if (s->scsi_len == 0) {
-        if (s->mode == USB_MSDM_DATAIN) {
-            s->scsi_dev->read_data(s->scsi_dev, s->tag);
-        } else if (s->mode == USB_MSDM_DATAOUT) {
-            s->scsi_dev->write_data(s->scsi_dev, s->tag);
-        }
-    }
-}
-
-static void usb_msd_send_status(MSDState *s)
-{
-    struct usb_msd_csw csw;
-
-    csw.sig = cpu_to_le32(0x53425355);
-    csw.tag = cpu_to_le32(s->tag);
-    csw.residue = s->residue;
-    csw.status = s->result;
-    memcpy(s->usb_buf, &csw, 13);
-}
-
-static void usb_msd_command_complete(void *opaque, int reason, uint32_t tag,
-                                     uint32_t arg)
-{
-    MSDState *s = (MSDState *)opaque;
-    USBPacket *p = s->packet;
-
-    if (tag != s->tag) {
-        fprintf(stderr, "usb-msd: Unexpected SCSI Tag 0x%x\n", tag);
-    }
-    if (reason == SCSI_REASON_DONE) {
-        DPRINTF("Command complete %d\n", arg);
-        s->residue = s->data_len;
-        s->result = arg != 0;
-        if (s->packet) {
-            if (s->data_len == 0 && s->mode == USB_MSDM_DATAOUT) {
-                /* A deferred packet with no write data remaining must be
-                   the status read packet.  */
-                usb_msd_send_status(s);
-                s->mode = USB_MSDM_CBW;
-            } else {
-                if (s->data_len) {
-                    s->data_len -= s->usb_len;
-                    if (s->mode == USB_MSDM_DATAIN)
-                        memset(s->usb_buf, 0, s->usb_len);
-                    s->usb_len = 0;
-                }
-                if (s->data_len == 0)
-                    s->mode = USB_MSDM_CSW;
-            }
-            s->packet = NULL;
-            usb_packet_complete(p);
-        } else if (s->data_len == 0) {
-            s->mode = USB_MSDM_CSW;
-        }
-        return;
-    }
-    s->scsi_len = arg;
-    s->scsi_buf = s->scsi_dev->get_buf(s->scsi_dev, tag);
-    if (p) {
-        usb_msd_copy_data(s);
-        if (s->usb_len == 0) {
-            /* Set s->packet to NULL before calling usb_packet_complete
-               because annother request may be issued before
-               usb_packet_complete returns.  */
-            DPRINTF("Packet complete %p\n", p);
-            s->packet = NULL;
-            usb_packet_complete(p);
-        }
-    }
-}
-
-static void usb_msd_handle_reset(USBDevice *dev)
-{
-    MSDState *s = (MSDState *)dev;
-
-    DPRINTF("Reset\n");
-    s->mode = USB_MSDM_CBW;
-}
-
-static int usb_msd_handle_control(USBDevice *dev, int request, int value,
-                                  int index, int length, uint8_t *data)
-{
-    MSDState *s = (MSDState *)dev;
-    int ret = 0;
-
-    switch (request) {
-    case DeviceRequest | USB_REQ_GET_STATUS:
-        data[0] = (1 << USB_DEVICE_SELF_POWERED) |
-            (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
-        data[1] = 0x00;
-        ret = 2;
-        break;
-    case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
-        if (value == USB_DEVICE_REMOTE_WAKEUP) {
-            dev->remote_wakeup = 0;
-        } else {
-            goto fail;
-        }
-        ret = 0;
-        break;
-    case DeviceOutRequest | USB_REQ_SET_FEATURE:
-        if (value == USB_DEVICE_REMOTE_WAKEUP) {
-            dev->remote_wakeup = 1;
-        } else {
-            goto fail;
-        }
-        ret = 0;
-        break;
-    case DeviceOutRequest | USB_REQ_SET_ADDRESS:
-        dev->addr = value;
-        ret = 0;
-        break;
-    case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
-        switch(value >> 8) {
-        case USB_DT_DEVICE:
-            memcpy(data, qemu_msd_dev_descriptor,
-                   sizeof(qemu_msd_dev_descriptor));
-            ret = sizeof(qemu_msd_dev_descriptor);
-            break;
-        case USB_DT_CONFIG:
-            memcpy(data, qemu_msd_config_descriptor,
-                   sizeof(qemu_msd_config_descriptor));
-            ret = sizeof(qemu_msd_config_descriptor);
-            break;
-        case USB_DT_STRING:
-            switch(value & 0xff) {
-            case 0:
-                /* language ids */
-                data[0] = 4;
-                data[1] = 3;
-                data[2] = 0x09;
-                data[3] = 0x04;
-                ret = 4;
-                break;
-            case 1:
-                /* vendor description */
-                ret = set_usb_string(data, "QEMU " QEMU_VERSION);
-                break;
-            case 2:
-                /* product description */
-                ret = set_usb_string(data, "QEMU USB HARDDRIVE");
-                break;
-            case 3:
-                /* serial number */
-                ret = set_usb_string(data, "1");
-                break;
-            default:
-                goto fail;
-            }
-            break;
-        default:
-            goto fail;
-        }
-        break;
-    case DeviceRequest | USB_REQ_GET_CONFIGURATION:
-        data[0] = 1;
-        ret = 1;
-        break;
-    case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
-        ret = 0;
-        break;
-    case DeviceRequest | USB_REQ_GET_INTERFACE:
-        data[0] = 0;
-        ret = 1;
-        break;
-    case DeviceOutRequest | USB_REQ_SET_INTERFACE:
-        ret = 0;
-        break;
-    case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
-        if (value == 0 && index != 0x81) { /* clear ep halt */
-            goto fail;
-        }
-        ret = 0;
-        break;
-        /* Class specific requests.  */
-    case MassStorageReset:
-        /* Reset state ready for the next CBW.  */
-        s->mode = USB_MSDM_CBW;
-        ret = 0;
-        break;
-    case GetMaxLun:
-        data[0] = 0;
-        ret = 1;
-        break;
-    default:
-    fail:
-        ret = USB_RET_STALL;
-        break;
-    }
-    return ret;
-}
-
-static void usb_msd_cancel_io(USBPacket *p, void *opaque)
-{
-    MSDState *s = opaque;
-    s->scsi_dev->cancel_io(s->scsi_dev, s->tag);
-    s->packet = NULL;
-    s->scsi_len = 0;
-}
-
-static int usb_msd_handle_data(USBDevice *dev, USBPacket *p)
-{
-    MSDState *s = (MSDState *)dev;
-    int ret = 0;
-    struct usb_msd_cbw cbw;
-    uint8_t devep = p->devep;
-    uint8_t *data = p->data;
-    int len = p->len;
-
-    switch (p->pid) {
-    case USB_TOKEN_OUT:
-        if (devep != 2)
-            goto fail;
-
-        switch (s->mode) {
-        case USB_MSDM_CBW:
-            if (len != 31) {
-                fprintf(stderr, "usb-msd: Bad CBW size");
-                goto fail;
-            }
-            memcpy(&cbw, data, 31);
-            if (le32_to_cpu(cbw.sig) != 0x43425355) {
-                fprintf(stderr, "usb-msd: Bad signature %08x\n",
-                        le32_to_cpu(cbw.sig));
-                goto fail;
-            }
-            DPRINTF("Command on LUN %d\n", cbw.lun);
-            if (cbw.lun != 0) {
-                fprintf(stderr, "usb-msd: Bad LUN %d\n", cbw.lun);
-                goto fail;
-            }
-            s->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;
-            } else if (cbw.flags & 0x80) {
-                s->mode = USB_MSDM_DATAIN;
-            } else {
-                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);
-            s->residue = 0;
-            s->scsi_dev->send_command(s->scsi_dev, s->tag, cbw.cmd, 0);
-            /* ??? Should check that USB and SCSI data transfer
-               directions match.  */
-            if (s->residue == 0) {
-                if (s->mode == USB_MSDM_DATAIN) {
-                    s->scsi_dev->read_data(s->scsi_dev, s->tag);
-                } else if (s->mode == USB_MSDM_DATAOUT) {
-                    s->scsi_dev->write_data(s->scsi_dev, s->tag);
-                }
-            }
-            ret = len;
-            break;
-
-        case USB_MSDM_DATAOUT:
-            DPRINTF("Data out %d/%d\n", len, s->data_len);
-            if (len > s->data_len)
-                goto fail;
-
-            s->usb_buf = data;
-            s->usb_len = len;
-            if (s->scsi_len) {
-                usb_msd_copy_data(s);
-            }
-            if (s->residue && s->usb_len) {
-                s->data_len -= s->usb_len;
-                if (s->data_len == 0)
-                    s->mode = USB_MSDM_CSW;
-                s->usb_len = 0;
-            }
-            if (s->usb_len) {
-                DPRINTF("Deferring packet %p\n", p);
-                usb_defer_packet(p, usb_msd_cancel_io, s);
-                s->packet = p;
-                ret = USB_RET_ASYNC;
-            } else {
-                ret = len;
-            }
-            break;
-
-        default:
-            DPRINTF("Unexpected write (len %d)\n", len);
-            goto fail;
-        }
-        break;
-
-    case USB_TOKEN_IN:
-        if (devep != 1)
-            goto fail;
-
-        switch (s->mode) {
-        case USB_MSDM_DATAOUT:
-            if (s->data_len != 0 || len < 13)
-                goto fail;
-            /* Waiting for SCSI write to complete.  */
-            usb_defer_packet(p, usb_msd_cancel_io, s);
-            s->packet = p;
-            ret = USB_RET_ASYNC;
-            break;
-
-        case USB_MSDM_CSW:
-            DPRINTF("Command status %d tag 0x%x, len %d\n",
-                    s->result, s->tag, len);
-            if (len < 13)
-                goto fail;
-
-            s->usb_len = len;
-            s->usb_buf = data;
-            usb_msd_send_status(s);
-            s->mode = USB_MSDM_CBW;
-            ret = 13;
-            break;
-
-        case USB_MSDM_DATAIN:
-            DPRINTF("Data in %d/%d\n", len, s->data_len);
-            if (len > s->data_len)
-                len = s->data_len;
-            s->usb_buf = data;
-            s->usb_len = len;
-            if (s->scsi_len) {
-                usb_msd_copy_data(s);
-            }
-            if (s->residue && s->usb_len) {
-                s->data_len -= s->usb_len;
-                memset(s->usb_buf, 0, s->usb_len);
-                if (s->data_len == 0)
-                    s->mode = USB_MSDM_CSW;
-                s->usb_len = 0;
-            }
-            if (s->usb_len) {
-                DPRINTF("Deferring packet %p\n", p);
-                usb_defer_packet(p, usb_msd_cancel_io, s);
-                s->packet = p;
-                ret = USB_RET_ASYNC;
-            } else {
-                ret = len;
-            }
-            break;
-
-        default:
-            DPRINTF("Unexpected read (len %d)\n", len);
-            goto fail;
-        }
-        break;
-
-    default:
-        DPRINTF("Bad token\n");
-    fail:
-        ret = USB_RET_STALL;
-        break;
-    }
-
-    return ret;
-}
-
-static void usb_msd_handle_destroy(USBDevice *dev)
-{
-    MSDState *s = (MSDState *)dev;
-
-    s->scsi_dev->destroy(s->scsi_dev);
-    bdrv_delete(s->bs);
-    qemu_free(s);
-}
-
-USBDevice *usb_msd_init(const char *filename)
-{
-    MSDState *s;
-    BlockDriverState *bdrv;
-    BlockDriver *drv = NULL;
-    const char *p1;
-    char fmt[32];
-
-    p1 = strchr(filename, ':');
-    if (p1++) {
-        const char *p2;
-
-        if (strstart(filename, "format=", &p2)) {
-            int len = MIN(p1 - p2, sizeof(fmt));
-            pstrcpy(fmt, len, p2);
-
-            drv = bdrv_find_format(fmt);
-            if (!drv) {
-                printf("invalid format %s\n", fmt);
-                return NULL;
-            }
-        } else if (*filename != ':') {
-            printf("unrecognized USB mass-storage option %s\n", filename);
-            return NULL;
-        }
-
-        filename = p1;
-    }
-
-    if (!*filename) {
-        printf("block device specification needed\n");
-        return NULL;
-    }
-
-    s = qemu_mallocz(sizeof(MSDState));
-    if (!s)
-        return NULL;
-
-    bdrv = bdrv_new("usb");
-    if (bdrv_open2(bdrv, filename, 0, drv) < 0)
-        goto fail;
-    if (qemu_key_check(bdrv, filename))
-        goto fail;
-    s->bs = bdrv;
-
-    s->dev.speed = USB_SPEED_FULL;
-    s->dev.handle_packet = usb_generic_handle_packet;
-
-    s->dev.handle_reset = usb_msd_handle_reset;
-    s->dev.handle_control = usb_msd_handle_control;
-    s->dev.handle_data = usb_msd_handle_data;
-    s->dev.handle_destroy = usb_msd_handle_destroy;
-
-    snprintf(s->dev.devname, sizeof(s->dev.devname), "QEMU USB MSD(%.16s)",
-             filename);
-
-    s->scsi_dev = scsi_disk_init(bdrv, 0, usb_msd_command_complete, s);
-    usb_msd_handle_reset((USBDevice *)s);
-    return (USBDevice *)s;
- fail:
-    qemu_free(s);
-    return NULL;
-}