diff options
Diffstat (limited to 'src/hw/usb/dev-storage.c')
| -rw-r--r-- | src/hw/usb/dev-storage.c | 869 |
1 files changed, 869 insertions, 0 deletions
diff --git a/src/hw/usb/dev-storage.c b/src/hw/usb/dev-storage.c new file mode 100644 index 0000000..597d8fd --- /dev/null +++ b/src/hw/usb/dev-storage.c @@ -0,0 +1,869 @@ +/* + * USB Mass Storage Device emulation + * + * Copyright (c) 2006 CodeSourcery. + * Written by Paul Brook + * + * This code is licensed under the LGPL. + */ + +#include "qemu-common.h" +#include "qemu/error-report.h" +#include "qemu/option.h" +#include "qemu/config-file.h" +#include "hw/usb.h" +#include "hw/usb/desc.h" +#include "hw/scsi/scsi.h" +#include "ui/console.h" +#include "monitor/monitor.h" +#include "sysemu/sysemu.h" +#include "sysemu/block-backend.h" +#include "sysemu/blockdev.h" +#include "qapi/visitor.h" + +//#define DEBUG_MSD + +#ifdef DEBUG_MSD +#define DPRINTF(fmt, ...) \ +do { printf("usb-msd: " fmt , ## __VA_ARGS__); } while (0) +#else +#define DPRINTF(fmt, ...) do {} while(0) +#endif + +/* USB requests. */ +#define MassStorageReset 0xff +#define GetMaxLun 0xfe + +enum USBMSDMode { + USB_MSDM_CBW, /* Command Block. */ + USB_MSDM_DATAOUT, /* Transfer data to device. */ + USB_MSDM_DATAIN, /* Transfer data from device. */ + 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; + uint32_t scsi_off; + uint32_t scsi_len; + uint32_t data_len; + struct usb_msd_csw csw; + SCSIRequest *req; + SCSIBus bus; + /* For async completion. */ + USBPacket *packet; + /* usb-storage only */ + BlockConf conf; + uint32_t removable; + SCSIDevice *scsi_dev; +} MSDState; + +#define TYPE_USB_STORAGE "usb-storage-dev" +#define USB_STORAGE_DEV(obj) OBJECT_CHECK(MSDState, (obj), TYPE_USB_STORAGE) + +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]; +}; + +enum { + STR_MANUFACTURER = 1, + STR_PRODUCT, + STR_SERIALNUMBER, + STR_CONFIG_FULL, + STR_CONFIG_HIGH, + STR_CONFIG_SUPER, +}; + +static const USBDescStrings desc_strings = { + [STR_MANUFACTURER] = "QEMU", + [STR_PRODUCT] = "QEMU USB HARDDRIVE", + [STR_SERIALNUMBER] = "1", + [STR_CONFIG_FULL] = "Full speed config (usb 1.1)", + [STR_CONFIG_HIGH] = "High speed config (usb 2.0)", + [STR_CONFIG_SUPER] = "Super speed config (usb 3.0)", +}; + +static const USBDescIface desc_iface_full = { + .bInterfaceNumber = 0, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_MASS_STORAGE, + .bInterfaceSubClass = 0x06, /* SCSI */ + .bInterfaceProtocol = 0x50, /* Bulk */ + .eps = (USBDescEndpoint[]) { + { + .bEndpointAddress = USB_DIR_IN | 0x01, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = 64, + },{ + .bEndpointAddress = USB_DIR_OUT | 0x02, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = 64, + }, + } +}; + +static const USBDescDevice desc_device_full = { + .bcdUSB = 0x0200, + .bMaxPacketSize0 = 8, + .bNumConfigurations = 1, + .confs = (USBDescConfig[]) { + { + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = STR_CONFIG_FULL, + .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER, + .nif = 1, + .ifs = &desc_iface_full, + }, + }, +}; + +static const USBDescIface desc_iface_high = { + .bInterfaceNumber = 0, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_MASS_STORAGE, + .bInterfaceSubClass = 0x06, /* SCSI */ + .bInterfaceProtocol = 0x50, /* Bulk */ + .eps = (USBDescEndpoint[]) { + { + .bEndpointAddress = USB_DIR_IN | 0x01, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = 512, + },{ + .bEndpointAddress = USB_DIR_OUT | 0x02, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = 512, + }, + } +}; + +static const USBDescDevice desc_device_high = { + .bcdUSB = 0x0200, + .bMaxPacketSize0 = 64, + .bNumConfigurations = 1, + .confs = (USBDescConfig[]) { + { + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = STR_CONFIG_HIGH, + .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER, + .nif = 1, + .ifs = &desc_iface_high, + }, + }, +}; + +static const USBDescIface desc_iface_super = { + .bInterfaceNumber = 0, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_MASS_STORAGE, + .bInterfaceSubClass = 0x06, /* SCSI */ + .bInterfaceProtocol = 0x50, /* Bulk */ + .eps = (USBDescEndpoint[]) { + { + .bEndpointAddress = USB_DIR_IN | 0x01, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = 1024, + .bMaxBurst = 15, + },{ + .bEndpointAddress = USB_DIR_OUT | 0x02, + .bmAttributes = USB_ENDPOINT_XFER_BULK, + .wMaxPacketSize = 1024, + .bMaxBurst = 15, + }, + } +}; + +static const USBDescDevice desc_device_super = { + .bcdUSB = 0x0300, + .bMaxPacketSize0 = 9, + .bNumConfigurations = 1, + .confs = (USBDescConfig[]) { + { + .bNumInterfaces = 1, + .bConfigurationValue = 1, + .iConfiguration = STR_CONFIG_SUPER, + .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER, + .nif = 1, + .ifs = &desc_iface_super, + }, + }, +}; + +static const USBDesc desc = { + .id = { + .idVendor = 0x46f4, /* CRC16() of "QEMU" */ + .idProduct = 0x0001, + .bcdDevice = 0, + .iManufacturer = STR_MANUFACTURER, + .iProduct = STR_PRODUCT, + .iSerialNumber = STR_SERIALNUMBER, + }, + .full = &desc_device_full, + .high = &desc_device_high, + .super = &desc_device_super, + .str = desc_strings, +}; + +static void usb_msd_copy_data(MSDState *s, USBPacket *p) +{ + uint32_t len; + len = p->iov.size - p->actual_length; + if (len > s->scsi_len) + len = s->scsi_len; + usb_packet_copy(p, scsi_req_get_buf(s->req) + s->scsi_off, len); + s->scsi_len -= len; + s->scsi_off += len; + s->data_len -= len; + if (s->scsi_len == 0 || s->data_len == 0) { + scsi_req_continue(s->req); + } +} + +static void usb_msd_send_status(MSDState *s, USBPacket *p) +{ + int len; + + DPRINTF("Command status %d tag 0x%x, len %zd\n", + s->csw.status, le32_to_cpu(s->csw.tag), p->iov.size); + + assert(s->csw.sig == cpu_to_le32(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_packet_complete(MSDState *s) +{ + USBPacket *p = s->packet; + + /* Set s->packet to NULL before calling usb_packet_complete + because another request may be issued before + usb_packet_complete returns. */ + DPRINTF("Packet complete %p\n", p); + s->packet = NULL; + usb_packet_complete(&s->dev, p); +} + +static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len) +{ + MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); + USBPacket *p = s->packet; + + assert((s->mode == USB_MSDM_DATAOUT) == (req->cmd.mode == SCSI_XFER_TO_DEV)); + s->scsi_len = len; + s->scsi_off = 0; + if (p) { + usb_msd_copy_data(s, p); + p = s->packet; + if (p && p->actual_length == p->iov.size) { + p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ + usb_msd_packet_complete(s); + } + } +} + +static void usb_msd_command_complete(SCSIRequest *req, uint32_t status, size_t resid) +{ + MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); + USBPacket *p = s->packet; + + DPRINTF("Command complete %d tag 0x%x\n", status, req->tag); + + s->csw.sig = cpu_to_le32(0x53425355); + s->csw.tag = cpu_to_le32(req->tag); + s->csw.residue = cpu_to_le32(s->data_len); + 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 + the status read packet. */ + usb_msd_send_status(s, p); + s->mode = USB_MSDM_CBW; + } else if (s->mode == USB_MSDM_CSW) { + usb_msd_send_status(s, p); + s->mode = USB_MSDM_CBW; + } else { + if (s->data_len) { + int len = (p->iov.size - p->actual_length); + usb_packet_skip(p, len); + s->data_len -= len; + } + if (s->data_len == 0) { + s->mode = USB_MSDM_CSW; + } + } + p->status = USB_RET_SUCCESS; /* Clear previous ASYNC status */ + usb_msd_packet_complete(s); + } else if (s->data_len == 0) { + s->mode = USB_MSDM_CSW; + } + scsi_req_unref(req); + s->req = NULL; +} + +static void usb_msd_request_cancelled(SCSIRequest *req) +{ + MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); + + if (req == s->req) { + scsi_req_unref(s->req); + s->req = NULL; + s->scsi_len = 0; + } +} + +static void usb_msd_handle_reset(USBDevice *dev) +{ + MSDState *s = (MSDState *)dev; + + DPRINTF("Reset\n"); + if (s->req) { + scsi_req_cancel(s->req); + } + assert(s->req == NULL); + + if (s->packet) { + s->packet->status = USB_RET_STALL; + usb_msd_packet_complete(s); + } + + s->mode = USB_MSDM_CBW; +} + +static void usb_msd_handle_control(USBDevice *dev, USBPacket *p, + int request, int value, int index, int length, uint8_t *data) +{ + MSDState *s = (MSDState *)dev; + SCSIDevice *scsi_dev; + int ret, maxlun; + + ret = usb_desc_handle_control(dev, p, request, value, index, length, data); + if (ret >= 0) { + return; + } + + switch (request) { + case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: + break; + /* Class specific requests. */ + case ClassInterfaceOutRequest | MassStorageReset: + /* Reset state ready for the next CBW. */ + s->mode = USB_MSDM_CBW; + break; + case ClassInterfaceRequest | GetMaxLun: + maxlun = 0; + for (;;) { + scsi_dev = scsi_device_find(&s->bus, 0, 0, maxlun+1); + if (scsi_dev == NULL) { + break; + } + if (scsi_dev->lun != maxlun+1) { + break; + } + maxlun++; + } + DPRINTF("MaxLun %d\n", maxlun); + data[0] = maxlun; + p->actual_length = 1; + break; + default: + p->status = USB_RET_STALL; + break; + } +} + +static void usb_msd_cancel_io(USBDevice *dev, USBPacket *p) +{ + MSDState *s = USB_STORAGE_DEV(dev); + + assert(s->packet == p); + s->packet = NULL; + + if (s->req) { + scsi_req_cancel(s->req); + } +} + +static void usb_msd_handle_data(USBDevice *dev, USBPacket *p) +{ + MSDState *s = (MSDState *)dev; + uint32_t tag; + struct usb_msd_cbw cbw; + uint8_t devep = p->ep->nr; + SCSIDevice *scsi_dev; + uint32_t len; + + switch (p->pid) { + case USB_TOKEN_OUT: + if (devep != 2) + goto fail; + + switch (s->mode) { + case USB_MSDM_CBW: + if (p->iov.size != 31) { + error_report("usb-msd: Bad CBW size"); + goto fail; + } + usb_packet_copy(p, &cbw, 31); + if (le32_to_cpu(cbw.sig) != 0x43425355) { + error_report("usb-msd: Bad signature %08x", + le32_to_cpu(cbw.sig)); + goto fail; + } + DPRINTF("Command on LUN %d\n", cbw.lun); + scsi_dev = scsi_device_find(&s->bus, 0, 0, cbw.lun); + if (scsi_dev == NULL) { + error_report("usb-msd: Bad LUN %d", cbw.lun); + goto fail; + } + 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", + tag, cbw.flags, cbw.cmd_len, s->data_len); + assert(le32_to_cpu(s->csw.residue) == 0); + s->scsi_len = 0; + s->req = scsi_req_new(scsi_dev, tag, cbw.lun, cbw.cmd, NULL); +#ifdef DEBUG_MSD + scsi_req_print(s->req); +#endif + len = scsi_req_enqueue(s->req); + if (len) { + scsi_req_continue(s->req); + } + break; + + case USB_MSDM_DATAOUT: + DPRINTF("Data out %zd/%d\n", p->iov.size, s->data_len); + if (p->iov.size > s->data_len) { + goto fail; + } + + if (s->scsi_len) { + usb_msd_copy_data(s, p); + } + if (le32_to_cpu(s->csw.residue)) { + int len = p->iov.size - p->actual_length; + if (len) { + usb_packet_skip(p, len); + s->data_len -= len; + if (s->data_len == 0) { + s->mode = USB_MSDM_CSW; + } + } + } + if (p->actual_length < p->iov.size) { + DPRINTF("Deferring packet %p [wait data-out]\n", p); + s->packet = p; + p->status = USB_RET_ASYNC; + } + break; + + default: + DPRINTF("Unexpected write (len %zd)\n", p->iov.size); + goto fail; + } + break; + + case USB_TOKEN_IN: + if (devep != 1) + goto fail; + + switch (s->mode) { + case USB_MSDM_DATAOUT: + if (s->data_len != 0 || p->iov.size < 13) { + goto fail; + } + /* Waiting for SCSI write to complete. */ + s->packet = p; + p->status = USB_RET_ASYNC; + break; + + case USB_MSDM_CSW: + if (p->iov.size < 13) { + goto fail; + } + + if (s->req) { + /* still in flight */ + DPRINTF("Deferring packet %p [wait status]\n", p); + s->packet = p; + p->status = USB_RET_ASYNC; + } else { + usb_msd_send_status(s, p); + s->mode = USB_MSDM_CBW; + } + break; + + case USB_MSDM_DATAIN: + DPRINTF("Data in %zd/%d, scsi_len %d\n", + p->iov.size, s->data_len, s->scsi_len); + if (s->scsi_len) { + usb_msd_copy_data(s, p); + } + if (le32_to_cpu(s->csw.residue)) { + int len = p->iov.size - p->actual_length; + if (len) { + usb_packet_skip(p, len); + s->data_len -= len; + if (s->data_len == 0) { + s->mode = USB_MSDM_CSW; + } + } + } + if (p->actual_length < p->iov.size) { + DPRINTF("Deferring packet %p [wait data-in]\n", p); + s->packet = p; + p->status = USB_RET_ASYNC; + } + break; + + default: + DPRINTF("Unexpected read (len %zd)\n", p->iov.size); + goto fail; + } + break; + + default: + DPRINTF("Bad token\n"); + fail: + p->status = USB_RET_STALL; + break; + } +} + +static void usb_msd_password_cb(void *opaque, int err) +{ + MSDState *s = opaque; + Error *local_err = NULL; + + if (!err) { + usb_device_attach(&s->dev, &local_err); + } + + if (local_err) { + error_report_err(local_err); + qdev_unplug(&s->dev.qdev, NULL); + } +} + +static void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req) +{ + MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); + + /* nothing to load, just store req in our state struct */ + assert(s->req == NULL); + scsi_req_ref(req); + s->req = req; + return NULL; +} + +static const struct SCSIBusInfo usb_msd_scsi_info_storage = { + .tcq = false, + .max_target = 0, + .max_lun = 0, + + .transfer_data = usb_msd_transfer_data, + .complete = usb_msd_command_complete, + .cancel = usb_msd_request_cancelled, + .load_request = usb_msd_load_request, +}; + +static const struct SCSIBusInfo usb_msd_scsi_info_bot = { + .tcq = false, + .max_target = 0, + .max_lun = 15, + + .transfer_data = usb_msd_transfer_data, + .complete = usb_msd_command_complete, + .cancel = usb_msd_request_cancelled, + .load_request = usb_msd_load_request, +}; + +static void usb_msd_realize_storage(USBDevice *dev, Error **errp) +{ + MSDState *s = USB_STORAGE_DEV(dev); + BlockBackend *blk = s->conf.blk; + SCSIDevice *scsi_dev; + Error *err = NULL; + + if (!blk) { + error_setg(errp, "drive property not set"); + return; + } + + if (blk_bs(blk)) { + bdrv_add_key(blk_bs(blk), NULL, &err); + if (err) { + if (monitor_cur_is_qmp()) { + error_propagate(errp, err); + return; + } + error_free(err); + err = NULL; + if (cur_mon) { + monitor_read_bdrv_key_start(cur_mon, blk_bs(blk), + usb_msd_password_cb, s); + s->dev.auto_attach = 0; + } else { + autostart = 0; + } + } + } + + blkconf_serial(&s->conf, &dev->serial); + blkconf_blocksizes(&s->conf); + + /* + * Hack alert: this pretends to be a block device, but it's really + * a SCSI bus that can serve only a single device, which it + * creates automatically. But first it needs to detach from its + * blockdev, or else scsi_bus_legacy_add_drive() dies when it + * attaches again. + * + * The hack is probably a bad idea. + */ + blk_detach_dev(blk, &s->dev.qdev); + s->conf.blk = NULL; + + usb_desc_create_serial(dev); + usb_desc_init(dev); + scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), + &usb_msd_scsi_info_storage, NULL); + scsi_dev = scsi_bus_legacy_add_drive(&s->bus, blk, 0, !!s->removable, + s->conf.bootindex, dev->serial, + &err); + if (!scsi_dev) { + error_propagate(errp, err); + return; + } + usb_msd_handle_reset(dev); + s->scsi_dev = scsi_dev; +} + +static void usb_msd_realize_bot(USBDevice *dev, Error **errp) +{ + MSDState *s = USB_STORAGE_DEV(dev); + + usb_desc_create_serial(dev); + usb_desc_init(dev); + scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), + &usb_msd_scsi_info_bot, NULL); + usb_msd_handle_reset(dev); +} + +static USBDevice *usb_msd_init(USBBus *bus, const char *filename) +{ + static int nr=0; + Error *err = NULL; + char id[8]; + QemuOpts *opts; + DriveInfo *dinfo; + USBDevice *dev; + const char *p1; + char fmt[32]; + + /* parse -usbdevice disk: syntax into drive opts */ + do { + snprintf(id, sizeof(id), "usb%d", nr++); + opts = qemu_opts_create(qemu_find_opts("drive"), id, 1, NULL); + } while (!opts); + + p1 = strchr(filename, ':'); + if (p1++) { + const char *p2; + + if (strstart(filename, "format=", &p2)) { + int len = MIN(p1 - p2, sizeof(fmt)); + pstrcpy(fmt, len, p2); + qemu_opt_set(opts, "format", fmt, &error_abort); + } else if (*filename != ':') { + error_report("unrecognized USB mass-storage option %s", filename); + return NULL; + } + filename = p1; + } + if (!*filename) { + error_report("block device specification needed"); + return NULL; + } + qemu_opt_set(opts, "file", filename, &error_abort); + qemu_opt_set(opts, "if", "none", &error_abort); + + /* create host drive */ + dinfo = drive_new(opts, 0); + if (!dinfo) { + qemu_opts_del(opts); + return NULL; + } + + /* create guest device */ + dev = usb_create(bus, "usb-storage"); + qdev_prop_set_drive(&dev->qdev, "drive", blk_by_legacy_dinfo(dinfo), + &err); + if (err) { + error_report_err(err); + object_unparent(OBJECT(dev)); + return NULL; + } + return dev; +} + +static const VMStateDescription vmstate_usb_msd = { + .name = "usb-storage", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_USB_DEVICE(dev, MSDState), + VMSTATE_UINT32(mode, MSDState), + VMSTATE_UINT32(scsi_len, MSDState), + VMSTATE_UINT32(scsi_off, MSDState), + VMSTATE_UINT32(data_len, MSDState), + VMSTATE_UINT32(csw.sig, MSDState), + VMSTATE_UINT32(csw.tag, MSDState), + VMSTATE_UINT32(csw.residue, MSDState), + VMSTATE_UINT8(csw.status, MSDState), + VMSTATE_END_OF_LIST() + } +}; + +static Property msd_properties[] = { + DEFINE_BLOCK_PROPERTIES(MSDState, conf), + DEFINE_PROP_BIT("removable", MSDState, removable, 0, false), + DEFINE_PROP_END_OF_LIST(), +}; + +static void usb_msd_class_initfn_common(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + USBDeviceClass *uc = USB_DEVICE_CLASS(klass); + + uc->product_desc = "QEMU USB MSD"; + uc->usb_desc = &desc; + uc->cancel_packet = usb_msd_cancel_io; + uc->handle_attach = usb_desc_attach; + uc->handle_reset = usb_msd_handle_reset; + uc->handle_control = usb_msd_handle_control; + uc->handle_data = usb_msd_handle_data; + set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); + dc->fw_name = "storage"; + dc->vmsd = &vmstate_usb_msd; +} + +static void usb_msd_class_initfn_storage(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + USBDeviceClass *uc = USB_DEVICE_CLASS(klass); + + uc->realize = usb_msd_realize_storage; + dc->props = msd_properties; +} + +static void usb_msd_get_bootindex(Object *obj, Visitor *v, void *opaque, + const char *name, Error **errp) +{ + USBDevice *dev = USB_DEVICE(obj); + MSDState *s = USB_STORAGE_DEV(dev); + + visit_type_int32(v, &s->conf.bootindex, name, errp); +} + +static void usb_msd_set_bootindex(Object *obj, Visitor *v, void *opaque, + const char *name, Error **errp) +{ + USBDevice *dev = USB_DEVICE(obj); + MSDState *s = USB_STORAGE_DEV(dev); + int32_t boot_index; + Error *local_err = NULL; + + visit_type_int32(v, &boot_index, name, &local_err); + if (local_err) { + goto out; + } + /* check whether bootindex is present in fw_boot_order list */ + check_boot_index(boot_index, &local_err); + if (local_err) { + goto out; + } + /* change bootindex to a new one */ + s->conf.bootindex = boot_index; + + if (s->scsi_dev) { + object_property_set_int(OBJECT(s->scsi_dev), boot_index, "bootindex", + &error_abort); + } + +out: + if (local_err) { + error_propagate(errp, local_err); + } +} + +static const TypeInfo usb_storage_dev_type_info = { + .name = TYPE_USB_STORAGE, + .parent = TYPE_USB_DEVICE, + .instance_size = sizeof(MSDState), + .abstract = true, + .class_init = usb_msd_class_initfn_common, +}; + +static void usb_msd_instance_init(Object *obj) +{ + object_property_add(obj, "bootindex", "int32", + usb_msd_get_bootindex, + usb_msd_set_bootindex, NULL, NULL, NULL); + object_property_set_int(obj, -1, "bootindex", NULL); +} + +static void usb_msd_class_initfn_bot(ObjectClass *klass, void *data) +{ + USBDeviceClass *uc = USB_DEVICE_CLASS(klass); + DeviceClass *dc = DEVICE_CLASS(klass); + + uc->realize = usb_msd_realize_bot; + dc->hotpluggable = false; +} + +static const TypeInfo msd_info = { + .name = "usb-storage", + .parent = TYPE_USB_STORAGE, + .class_init = usb_msd_class_initfn_storage, + .instance_init = usb_msd_instance_init, +}; + +static const TypeInfo bot_info = { + .name = "usb-bot", + .parent = TYPE_USB_STORAGE, + .class_init = usb_msd_class_initfn_bot, +}; + +static void usb_msd_register_types(void) +{ + type_register_static(&usb_storage_dev_type_info); + type_register_static(&msd_info); + type_register_static(&bot_info); + usb_legacy_register("usb-storage", "disk", usb_msd_init); +} + +type_init(usb_msd_register_types) |
