esp: correctly fill bus id with requested lun

[qemu.git] / hw / scsi.h

diff --git a/hw/scsi.h b/hw/scsi.h
index 77e8989ab3b1226c2b447207cc6911287dc9dd94..c1dca35b8672af8358b5ba0157b47a1bfbf4213c 100644 (file)
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -1,7 +1,159 @@
-/* esp.c */
-#define ESP_MAX_DEVS 7
-typedef void (*espdma_memory_read_write)(void *opaque, uint8_t *buf, int len);
-void esp_init(a_target_phys_addr espaddr, int it_shift,
-              espdma_memory_read_write dma_memory_read,
-              espdma_memory_read_write dma_memory_write,
-              void *dma_opaque, qemu_irq irq, qemu_irq *reset);
+#ifndef QEMU_HW_SCSI_H
+#define QEMU_HW_SCSI_H
+
+#include "qdev.h"
+#include "block.h"
+#include "block_int.h"
+
+#define MAX_SCSI_DEVS  255
+
+#define SCSI_CMD_BUF_SIZE     16
+
+typedef struct SCSIBus SCSIBus;
+typedef struct SCSIBusOps SCSIBusOps;
+typedef struct SCSIDevice SCSIDevice;
+typedef struct SCSIDeviceInfo SCSIDeviceInfo;
+typedef struct SCSIRequest SCSIRequest;
+
+enum SCSIXferMode {
+    SCSI_XFER_NONE,      /*  TEST_UNIT_READY, ...            */
+    SCSI_XFER_FROM_DEV,  /*  READ, INQUIRY, MODE_SENSE, ...  */
+    SCSI_XFER_TO_DEV,    /*  WRITE, MODE_SELECT, ...         */
+};
+
+typedef struct SCSISense {
+    uint8_t key;
+    uint8_t asc;
+    uint8_t ascq;
+} SCSISense;
+
+struct SCSIRequest {
+    SCSIBus           *bus;
+    SCSIDevice        *dev;
+    uint32_t          refcount;
+    uint32_t          tag;
+    uint32_t          lun;
+    uint32_t          status;
+    struct {
+        uint8_t buf[SCSI_CMD_BUF_SIZE];
+        int len;
+        size_t xfer;
+        uint64_t lba;
+        enum SCSIXferMode mode;
+    } cmd;
+    BlockDriverAIOCB  *aiocb;
+    bool enqueued;
+    QTAILQ_ENTRY(SCSIRequest) next;
+};
+
+struct SCSIDevice
+{
+    DeviceState qdev;
+    uint32_t id;
+    BlockConf conf;
+    SCSIDeviceInfo *info;
+    QTAILQ_HEAD(, SCSIRequest) requests;
+    int blocksize;
+    int type;
+};
+
+/* cdrom.c */
+int cdrom_read_toc(int nb_sectors, uint8_t *buf, int msf, int start_track);
+int cdrom_read_toc_raw(int nb_sectors, uint8_t *buf, int msf, int session_num);
+
+/* scsi-bus.c */
+typedef int (*scsi_qdev_initfn)(SCSIDevice *dev);
+struct SCSIDeviceInfo {
+    DeviceInfo qdev;
+    scsi_qdev_initfn init;
+    void (*destroy)(SCSIDevice *s);
+    SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun);
+    void (*free_req)(SCSIRequest *req);
+    int32_t (*send_command)(SCSIRequest *req, uint8_t *buf);
+    void (*read_data)(SCSIRequest *req);
+    void (*write_data)(SCSIRequest *req);
+    void (*cancel_io)(SCSIRequest *req);
+    uint8_t *(*get_buf)(SCSIRequest *req);
+    int (*get_sense)(SCSIRequest *req, uint8_t *buf, int len);
+};
+
+struct SCSIBusOps {
+    void (*transfer_data)(SCSIRequest *req, uint32_t arg);
+    void (*complete)(SCSIRequest *req, uint32_t arg);
+    void (*cancel)(SCSIRequest *req);
+};
+
+struct SCSIBus {
+    BusState qbus;
+    int busnr;
+
+    int tcq, ndev;
+    const SCSIBusOps *ops;
+
+    SCSIDevice *devs[MAX_SCSI_DEVS];
+};
+
+void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
+                  const SCSIBusOps *ops);
+void scsi_qdev_register(SCSIDeviceInfo *info);
+
+static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
+{
+    return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
+}
+
+SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
+                                      int unit, bool removable);
+int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
+
+/*
+ * Predefined sense codes
+ */
+
+/* No sense data available */
+extern const struct SCSISense sense_code_NO_SENSE;
+/* LUN not ready, Manual intervention required */
+extern const struct SCSISense sense_code_LUN_NOT_READY;
+/* LUN not ready, Medium not present */
+extern const struct SCSISense sense_code_NO_MEDIUM;
+/* Hardware error, internal target failure */
+extern const struct SCSISense sense_code_TARGET_FAILURE;
+/* Illegal request, invalid command operation code */
+extern const struct SCSISense sense_code_INVALID_OPCODE;
+/* Illegal request, LBA out of range */
+extern const struct SCSISense sense_code_LBA_OUT_OF_RANGE;
+/* Illegal request, Invalid field in CDB */
+extern const struct SCSISense sense_code_INVALID_FIELD;
+/* Illegal request, LUN not supported */
+extern const struct SCSISense sense_code_LUN_NOT_SUPPORTED;
+/* Command aborted, I/O process terminated */
+extern const struct SCSISense sense_code_IO_ERROR;
+/* Command aborted, I_T Nexus loss occurred */
+extern const struct SCSISense sense_code_I_T_NEXUS_LOSS;
+/* Command aborted, Logical Unit failure */
+extern const struct SCSISense sense_code_LUN_FAILURE;
+
+#define SENSE_CODE(x) sense_code_ ## x
+
+int scsi_build_sense(SCSISense sense, uint8_t *buf, int len, int fixed);
+int scsi_sense_valid(SCSISense sense);
+
+SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun);
+SCSIRequest *scsi_req_new(SCSIDevice *d, uint32_t tag, uint32_t lun);
+int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf);
+void scsi_req_free(SCSIRequest *req);
+SCSIRequest *scsi_req_ref(SCSIRequest *req);
+void scsi_req_unref(SCSIRequest *req);
+
+int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
+void scsi_req_print(SCSIRequest *req);
+void scsi_req_continue(SCSIRequest *req);
+void scsi_req_data(SCSIRequest *req, int len);
+void scsi_req_complete(SCSIRequest *req);
+uint8_t *scsi_req_get_buf(SCSIRequest *req);
+int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len);
+void scsi_req_abort(SCSIRequest *req, int status);
+void scsi_req_cancel(SCSIRequest *req);
+void scsi_device_purge_requests(SCSIDevice *sdev);
+
+#endif