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authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2006-08-12 01:04:27 +0000
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2006-08-12 01:04:27 +0000
commit4d611c9a2f4c5d9080d8b6a6f0d7431233cd56f9 (patch)
tree6217063ef291bd680f1c81a82bdaef7345356c16 /vl.h
parent4ca9c76f3620dc20e56d9b7027a6f1115ea48eea (diff)
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SCSI and USB async IO support.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2107 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'vl.h')
-rw-r--r--vl.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/vl.h b/vl.h
index 1632e35..5a10326 100644
--- a/vl.h
+++ b/vl.h
@@ -1146,6 +1146,11 @@ void do_usb_del(const char *devname);
void usb_info(void);
/* scsi-disk.c */
+enum scsi_reason {
+ SCSI_REASON_DONE, /* Command complete. */
+ SCSI_REASON_DATA /* Transfer complete, more data required. */
+};
+
typedef struct SCSIDevice SCSIDevice;
typedef void (*scsi_completionfn)(void *, uint32_t, int);
@@ -1155,8 +1160,12 @@ SCSIDevice *scsi_disk_init(BlockDriverState *bdrv,
void scsi_disk_destroy(SCSIDevice *s);
int32_t scsi_send_command(SCSIDevice *s, uint32_t tag, uint8_t *buf, int lun);
+/* SCSI data transfers are asynchrnonous. However, unlike the block IO
+ layer the completion routine may be called directly by
+ scsi_{read,write}_data. */
int scsi_read_data(SCSIDevice *s, uint8_t *data, uint32_t len);
int scsi_write_data(SCSIDevice *s, uint8_t *data, uint32_t len);
+void scsi_cancel_io(SCSIDevice *s);
/* lsi53c895a.c */
void lsi_scsi_attach(void *opaque, BlockDriverState *bd, int id);