xen: Replace some tab-indents with spaces (clean-up).

[qemu.git] / hw / scsi.h

diff --git a/hw/scsi.h b/hw/scsi.h
index 78ae768ab6b023d6daf488a8b1f09035224ea63d..d3b5d56cd60299e500646d93fce3f1a3e4c71df0 100644 (file)
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -1,8 +1,110 @@
-/* esp.c */
-#define ESP_MAX_DEVS 7
-typedef void (*espdma_memory_read_write)(void *opaque, uint8_t *buf, int len);
-void esp_scsi_attach(void *opaque, BlockDriverState *bd, int id);
-void *esp_init(target_phys_addr_t 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
+
+/* scsi-disk.c */
+enum scsi_reason {
+    SCSI_REASON_DONE, /* Command complete.  */
+    SCSI_REASON_DATA  /* Transfer complete, more data required.  */
+};
+
+typedef struct SCSIBus SCSIBus;
+typedef struct SCSIDevice SCSIDevice;
+typedef struct SCSIDeviceInfo SCSIDeviceInfo;
+typedef void (*scsi_completionfn)(SCSIBus *bus, int reason, uint32_t tag,
+                                  uint32_t arg);
+
+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 SCSIRequest {
+    SCSIBus           *bus;
+    SCSIDevice        *dev;
+    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;
+} SCSIRequest;
+
+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);
+    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);
+};
+
+typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
+              int unit);
+struct SCSIBus {
+    BusState qbus;
+    int busnr;
+
+    int tcq, ndev;
+    scsi_completionfn complete;
+
+    SCSIDevice *devs[MAX_SCSI_DEVS];
+};
+
+void scsi_bus_new(SCSIBus *bus, DeviceState *host, int tcq, int ndev,
+                  scsi_completionfn complete);
+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);
+
+SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun);
+SCSIRequest *scsi_req_find(SCSIDevice *d, uint32_t tag);
+void scsi_req_free(SCSIRequest *req);
+
+int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
+void scsi_req_print(SCSIRequest *req);
+void scsi_req_complete(SCSIRequest *req);
+
+#endif