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SCSI cleanup, by Laurent Vivier.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3797 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-12-10 02:58:34 +00:00
parent cf6d911814
commit 8ccc2ace56
5 changed files with 95 additions and 67 deletions
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27
hw/scsi-disk.h
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@ -7,24 +7,25 @@ enum scsi_reason {
SCSI_REASON_DATA /* Transfer complete, more data required. */
};
typedef struct SCSIDeviceState SCSIDeviceState;
typedef struct SCSIDevice SCSIDevice;
typedef void (*scsi_completionfn)(void *opaque, int reason, uint32_t tag,
uint32_t arg);
SCSIDevice *scsi_disk_init(BlockDriverState *bdrv,
int tcq,
scsi_completionfn completion,
void *opaque);
void scsi_disk_destroy(SCSIDevice *s);
struct SCSIDevice
{
SCSIDeviceState *state;
void (*destroy)(SCSIDevice *s);
int32_t (*send_command)(SCSIDevice *s, uint32_t tag, uint8_t *buf,
int lun);
void (*read_data)(SCSIDevice *s, uint32_t tag);
int (*write_data)(SCSIDevice *s, uint32_t tag);
void (*cancel_io)(SCSIDevice *s, uint32_t tag);
uint8_t *(*get_buf)(SCSIDevice *s, uint32_t tag);
};
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. */
void scsi_read_data(SCSIDevice *s, uint32_t tag);
int scsi_write_data(SCSIDevice *s, uint32_t tag);
void scsi_cancel_io(SCSIDevice *s, uint32_t tag);
uint8_t *scsi_get_buf(SCSIDevice *s, uint32_t tag);
SCSIDevice *scsi_disk_init(BlockDriverState *bdrv, int tcq,
scsi_completionfn completion, void *opaque);
/* cdrom.c */
int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);