Git Repo - qemu.git/blame_incremental

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Commit	Line	Data
	1	#ifndef QEMU_HW_SCSI_H
	2	#define QEMU_HW_SCSI_H
	3
	4	#include "qdev.h"
	5	#include "block.h"
	6	#include "block_int.h"
	7
	8	#define SCSI_CMD_BUF_SIZE 16
	9
	10	/* scsi-disk.c */
	11	enum scsi_reason {
	12	SCSI_REASON_DONE, /* Command complete. */
	13	SCSI_REASON_DATA /* Transfer complete, more data required. */
	14	};
	15
	16	typedef struct SCSIBus SCSIBus;
	17	typedef struct SCSIDevice SCSIDevice;
	18	typedef struct SCSIDeviceInfo SCSIDeviceInfo;
	19	typedef void (scsi_completionfn)(SCSIBus bus, int reason, uint32_t tag,
	20	uint32_t arg);
	21
	22	enum SCSIXferMode {
	23	SCSI_XFER_NONE, /* TEST_UNIT_READY, ... */
	24	SCSI_XFER_FROM_DEV, /* READ, INQUIRY, MODE_SENSE, ... */
	25	SCSI_XFER_TO_DEV, /* WRITE, MODE_SELECT, ... */
	26	};
	27
	28	typedef struct SCSISense {
	29	uint8_t key;
	30	} SCSISense;
	31
	32	typedef struct SCSIRequest {
	33	SCSIBus *bus;
	34	SCSIDevice *dev;
	35	uint32_t tag;
	36	uint32_t lun;
	37	uint32_t status;
	38	struct {
	39	uint8_t buf[SCSI_CMD_BUF_SIZE];
	40	int len;
	41	size_t xfer;
	42	uint64_t lba;
	43	enum SCSIXferMode mode;
	44	} cmd;
	45	BlockDriverAIOCB *aiocb;
	46	QTAILQ_ENTRY(SCSIRequest) next;
	47	} SCSIRequest;
	48
	49	struct SCSIDevice
	50	{
	51	DeviceState qdev;
	52	uint32_t id;
	53	BlockConf conf;
	54	SCSIDeviceInfo *info;
	55	QTAILQ_HEAD(, SCSIRequest) requests;
	56	int blocksize;
	57	int type;
	58	struct SCSISense sense;
	59	};
	60
	61	/* cdrom.c */
	62	int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
	63	int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
	64
	65	/* scsi-bus.c */
	66	typedef int (scsi_qdev_initfn)(SCSIDevice dev);
	67	struct SCSIDeviceInfo {
	68	DeviceInfo qdev;
	69	scsi_qdev_initfn init;
	70	void (destroy)(SCSIDevice s);
	71	int32_t (send_command)(SCSIDevice s, uint32_t tag, uint8_t *buf,
	72	int lun);
	73	void (read_data)(SCSIDevice s, uint32_t tag);
	74	int (write_data)(SCSIDevice s, uint32_t tag);
	75	void (cancel_io)(SCSIDevice s, uint32_t tag);
	76	uint8_t (get_buf)(SCSIDevice *s, uint32_t tag);
	77	};
	78
	79	typedef void (SCSIAttachFn)(DeviceState host, BlockDriverState *bdrv,
	80	int unit);
	81	struct SCSIBus {
	82	BusState qbus;
	83	int busnr;
	84
	85	int tcq, ndev;
	86	scsi_completionfn complete;
	87
	88	SCSIDevice *devs[8];
	89	};
	90
	91	void scsi_bus_new(SCSIBus bus, DeviceState host, int tcq, int ndev,
	92	scsi_completionfn complete);
	93	void scsi_qdev_register(SCSIDeviceInfo *info);
	94
	95	static inline SCSIBus scsi_bus_from_device(SCSIDevice d)
	96	{
	97	return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
	98	}
	99
	100	SCSIDevice scsi_bus_legacy_add_drive(SCSIBus bus, DriveInfo *dinfo, int unit);
	101	void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
	102
	103	void scsi_dev_clear_sense(SCSIDevice *dev);
	104	void scsi_dev_set_sense(SCSIDevice *dev, uint8_t key);
	105
	106	SCSIRequest scsi_req_alloc(size_t size, SCSIDevice d, uint32_t tag, uint32_t lun);
	107	SCSIRequest scsi_req_find(SCSIDevice d, uint32_t tag);
	108	void scsi_req_free(SCSIRequest *req);
	109
	110	int scsi_req_parse(SCSIRequest req, uint8_t buf);
	111	void scsi_req_print(SCSIRequest *req);
	112	void scsi_req_complete(SCSIRequest *req);
	113
	114	#endif