diff options
Diffstat (limited to 'hw/usb/dev-storage.c')
| -rw-r--r-- | hw/usb/dev-storage.c | 226 |
1 files changed, 7 insertions, 219 deletions
diff --git a/hw/usb/dev-storage.c b/hw/usb/dev-storage.c index a5f76fc001..dca62d544f 100644 --- a/hw/usb/dev-storage.c +++ b/hw/usb/dev-storage.c @@ -14,13 +14,11 @@ #include "qemu/option.h" #include "qemu/config-file.h" #include "hw/usb.h" +#include "hw/usb/msd.h" #include "desc.h" #include "hw/qdev-properties.h" #include "hw/scsi/scsi.h" #include "migration/vmstate.h" -#include "sysemu/sysemu.h" -#include "sysemu/block-backend.h" -#include "qapi/visitor.h" #include "qemu/cutils.h" #include "qom/object.h" #include "trace.h" @@ -29,43 +27,6 @@ #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; -}; - -struct MSDState { - 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; - bool removable; - bool commandlog; - SCSIDevice *scsi_dev; -}; -typedef struct MSDState MSDState; - -#define TYPE_USB_STORAGE "usb-storage-dev" -DECLARE_INSTANCE_CHECKER(MSDState, USB_STORAGE_DEV, - TYPE_USB_STORAGE) - struct usb_msd_cbw { uint32_t sig; uint32_t tag; @@ -259,7 +220,7 @@ static void usb_msd_packet_complete(MSDState *s) usb_packet_complete(&s->dev, p); } -static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len) +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; @@ -277,7 +238,7 @@ static void usb_msd_transfer_data(SCSIRequest *req, uint32_t len) } } -static void usb_msd_command_complete(SCSIRequest *req, size_t resid) +void usb_msd_command_complete(SCSIRequest *req, size_t resid) { MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); USBPacket *p = s->packet; @@ -320,7 +281,7 @@ static void usb_msd_command_complete(SCSIRequest *req, size_t resid) s->req = NULL; } -static void usb_msd_request_cancelled(SCSIRequest *req) +void usb_msd_request_cancelled(SCSIRequest *req) { MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); @@ -337,7 +298,7 @@ static void usb_msd_request_cancelled(SCSIRequest *req) } } -static void usb_msd_handle_reset(USBDevice *dev) +void usb_msd_handle_reset(USBDevice *dev) { MSDState *s = (MSDState *)dev; @@ -352,6 +313,7 @@ static void usb_msd_handle_reset(USBDevice *dev) usb_msd_packet_complete(s); } + memset(&s->csw, 0, sizeof(s->csw)); s->mode = USB_MSDM_CBW; } @@ -565,7 +527,7 @@ static void usb_msd_handle_data(USBDevice *dev, USBPacket *p) } } -static void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req) +void *usb_msd_load_request(QEMUFile *f, SCSIRequest *req) { MSDState *s = DO_UPCAST(MSDState, dev.qdev, req->bus->qbus.parent); @@ -576,95 +538,6 @@ static void *usb_msd_load_request(QEMUFile *f, SCSIRequest *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_storage_realize(USBDevice *dev, Error **errp) -{ - MSDState *s = USB_STORAGE_DEV(dev); - BlockBackend *blk = s->conf.blk; - SCSIDevice *scsi_dev; - - if (!blk) { - error_setg(errp, "drive property not set"); - return; - } - - if (!blkconf_blocksizes(&s->conf, errp)) { - return; - } - - if (!blkconf_apply_backend_options(&s->conf, !blk_supports_write_perm(blk), - true, errp)) { - return; - } - - /* - * 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. We also need to take another reference so that - * blk_detach_dev() doesn't free blk while we still need it. - * - * The hack is probably a bad idea. - */ - blk_ref(blk); - blk_detach_dev(blk, DEVICE(s)); - 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, s->conf.share_rw, - s->conf.rerror, s->conf.werror, - dev->serial, - errp); - blk_unref(blk); - if (!scsi_dev) { - return; - } - usb_msd_handle_reset(dev); - s->scsi_dev = scsi_dev; -} - -static void usb_msd_bot_realize(USBDevice *dev, Error **errp) -{ - MSDState *s = USB_STORAGE_DEV(dev); - DeviceState *d = DEVICE(dev); - - usb_desc_create_serial(dev); - usb_desc_init(dev); - if (d->hotplugged) { - s->dev.auto_attach = 0; - } - - scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev), - &usb_msd_scsi_info_bot, NULL); - usb_msd_handle_reset(dev); -} - static const VMStateDescription vmstate_usb_msd = { .name = "usb-storage", .version_id = 1, @@ -683,14 +556,6 @@ static const VMStateDescription vmstate_usb_msd = { } }; -static Property msd_properties[] = { - DEFINE_BLOCK_PROPERTIES(MSDState, conf), - DEFINE_BLOCK_ERROR_PROPERTIES(MSDState, conf), - DEFINE_PROP_BOOL("removable", MSDState, removable, false), - DEFINE_PROP_BOOL("commandlog", MSDState, commandlog, false), - DEFINE_PROP_END_OF_LIST(), -}; - static void usb_msd_class_initfn_common(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -708,52 +573,6 @@ static void usb_msd_class_initfn_common(ObjectClass *klass, void *data) dc->vmsd = &vmstate_usb_msd; } -static void usb_msd_class_storage_initfn(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - USBDeviceClass *uc = USB_DEVICE_CLASS(klass); - - uc->realize = usb_msd_storage_realize; - device_class_set_props(dc, msd_properties); -} - -static void usb_msd_get_bootindex(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) -{ - USBDevice *dev = USB_DEVICE(obj); - MSDState *s = USB_STORAGE_DEV(dev); - - visit_type_int32(v, name, &s->conf.bootindex, errp); -} - -static void usb_msd_set_bootindex(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) -{ - USBDevice *dev = USB_DEVICE(obj); - MSDState *s = USB_STORAGE_DEV(dev); - int32_t boot_index; - Error *local_err = NULL; - - if (!visit_type_int32(v, name, &boot_index, errp)) { - return; - } - /* 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), "bootindex", boot_index, - &error_abort); - } - -out: - error_propagate(errp, local_err); -} - static const TypeInfo usb_storage_dev_type_info = { .name = TYPE_USB_STORAGE, .parent = TYPE_USB_DEVICE, @@ -762,40 +581,9 @@ static const TypeInfo usb_storage_dev_type_info = { .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); - object_property_set_int(obj, "bootindex", -1, NULL); -} - -static void usb_msd_class_bot_initfn(ObjectClass *klass, void *data) -{ - USBDeviceClass *uc = USB_DEVICE_CLASS(klass); - - uc->realize = usb_msd_bot_realize; - uc->attached_settable = true; -} - -static const TypeInfo msd_info = { - .name = "usb-storage", - .parent = TYPE_USB_STORAGE, - .class_init = usb_msd_class_storage_initfn, - .instance_init = usb_msd_instance_init, -}; - -static const TypeInfo bot_info = { - .name = "usb-bot", - .parent = TYPE_USB_STORAGE, - .class_init = usb_msd_class_bot_initfn, -}; - 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); } type_init(usb_msd_register_types) |