Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 274 insertions, 0 deletions

diff --git a/qemu/roms/seabios/src/hw/usb-uas.c b/qemu/roms/seabios/src/hw/usb-uas.c
new file mode 100644
index 000000000..6ef8d0912
--- /dev/null
+++ b/qemu/roms/seabios/src/hw/usb-uas.c
@@ -0,0 +1,274 @@
+// Code for handling usb attached scsi devices.
+//
+// only usb 2.0 for now.
+//
+// once we have xhci driver with usb 3.0 support this must
+// be updated to use usb3 streams so booting from usb3
+// devices actually works.
+//
+// Authors:
+//  Gerd Hoffmann <kraxel@redhat.com>
+//
+// based on usb-msc.c which is written by:
+//  Kevin O'Connor <kevin@koconnor.net>
+//
+// This file may be distributed under the terms of the GNU LGPLv3 license.
+
+#include "biosvar.h" // GET_GLOBALFLAT
+#include "block.h" // DTYPE_USB
+#include "blockcmd.h" // cdb_read
+#include "config.h" // CONFIG_USB_UAS
+#include "malloc.h" // free
+#include "output.h" // dprintf
+#include "std/disk.h" // DISK_RET_SUCCESS
+#include "string.h" // memset
+#include "usb.h" // struct usb_s
+#include "usb-uas.h" // usb_uas_init
+#include "util.h" // bootprio_find_usb
+
+#define UAS_UI_COMMAND              0x01
+#define UAS_UI_SENSE                0x03
+#define UAS_UI_RESPONSE             0x04
+#define UAS_UI_TASK_MGMT            0x05
+#define UAS_UI_READ_READY           0x06
+#define UAS_UI_WRITE_READY          0x07
+
+#define UAS_PIPE_ID_COMMAND         0x01
+#define UAS_PIPE_ID_STATUS          0x02
+#define UAS_PIPE_ID_DATA_IN         0x03
+#define UAS_PIPE_ID_DATA_OUT        0x04
+
+typedef struct {
+    u8    id;
+    u8    reserved;
+    u16   tag;
+} PACKED  uas_ui_header;
+
+typedef struct {
+    u8    prio_taskattr;   /* 6:3 priority, 2:0 task attribute   */
+    u8    reserved_1;
+    u8    add_cdb_length;  /* 7:2 additional adb length (dwords) */
+    u8    reserved_2;
+    u8    lun[8];
+    u8    cdb[16];
+    u8    add_cdb[];
+} PACKED  uas_ui_command;
+
+typedef struct {
+    u16   status_qualifier;
+    u8    status;
+    u8    reserved[7];
+    u16   sense_length;
+    u8    sense_data[18];
+} PACKED  uas_ui_sense;
+
+typedef struct {
+    u16   add_response_info;
+    u8    response_code;
+} PACKED  uas_ui_response;
+
+typedef struct {
+    u8    function;
+    u8    reserved;
+    u16   task_tag;
+    u8    lun[8];
+} PACKED  uas_ui_task_mgmt;
+
+typedef struct {
+    uas_ui_header  hdr;
+    union {
+        uas_ui_command   command;
+        uas_ui_sense     sense;
+        uas_ui_task_mgmt task;
+        uas_ui_response  response;
+    };
+} PACKED  uas_ui;
+
+struct uasdrive_s {
+    struct drive_s drive;
+    struct usb_pipe *command, *status, *data_in, *data_out;
+    int lun;
+};
+
+int
+uas_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize)
+{
+    if (!CONFIG_USB_UAS)
+        return DISK_RET_EBADTRACK;
+
+    struct uasdrive_s *drive_gf = container_of(
+        op->drive_gf, struct uasdrive_s, drive);
+
+    uas_ui ui;
+    memset(&ui, 0, sizeof(ui));
+    ui.hdr.id = UAS_UI_COMMAND;
+    ui.hdr.tag = 0xdead;
+    ui.command.lun[1] = GET_GLOBALFLAT(drive_gf->lun);
+    memcpy(ui.command.cdb, cdbcmd, sizeof(ui.command.cdb));
+    int ret = usb_send_bulk(GET_GLOBALFLAT(drive_gf->command),
+                            USB_DIR_OUT, MAKE_FLATPTR(GET_SEG(SS), &ui),
+                            sizeof(ui.hdr) + sizeof(ui.command));
+    if (ret) {
+        dprintf(1, "uas: command send fail");
+        goto fail;
+    }
+
+    memset(&ui, 0xff, sizeof(ui));
+    ret = usb_send_bulk(GET_GLOBALFLAT(drive_gf->status),
+                        USB_DIR_IN, MAKE_FLATPTR(GET_SEG(SS), &ui), sizeof(ui));
+    if (ret) {
+        dprintf(1, "uas: status recv fail");
+        goto fail;
+    }
+
+    switch (ui.hdr.id) {
+    case UAS_UI_SENSE:
+        goto have_sense;
+    case UAS_UI_READ_READY:
+        ret = usb_send_bulk(GET_GLOBALFLAT(drive_gf->data_in),
+                            USB_DIR_IN, op->buf_fl, op->count * blocksize);
+        if (ret) {
+            dprintf(1, "uas: data read fail");
+            goto fail;
+        }
+        break;
+    case UAS_UI_WRITE_READY:
+        ret = usb_send_bulk(GET_GLOBALFLAT(drive_gf->data_out),
+                            USB_DIR_OUT, op->buf_fl, op->count * blocksize);
+        if (ret) {
+            dprintf(1, "uas: data write fail");
+            goto fail;
+        }
+        break;
+    default:
+        dprintf(1, "uas: unknown status ui id %d", ui.hdr.id);
+        goto fail;
+    }
+
+    memset(&ui, 0xff, sizeof(ui));
+    ret = usb_send_bulk(GET_GLOBALFLAT(drive_gf->status),
+                        USB_DIR_IN, MAKE_FLATPTR(GET_SEG(SS), &ui), sizeof(ui));
+    if (ret) {
+        dprintf(1, "uas: status recv fail");
+        goto fail;
+    }
+    if (ui.hdr.id != UAS_UI_SENSE) {
+        dprintf(1, "uas: expected sense ui, got ui id %d", ui.hdr.id);
+        goto fail;
+    }
+
+have_sense:
+    if (ui.sense.status == 0) {
+        return DISK_RET_SUCCESS;
+    }
+
+fail:
+    return DISK_RET_EBADTRACK;
+}
+
+static int
+uas_lun_setup(struct usbdevice_s *usbdev,
+              struct usb_pipe *command, struct usb_pipe *status,
+              struct usb_pipe *data_in, struct usb_pipe *data_out,
+              int lun)
+{
+    // Allocate drive structure.
+    struct uasdrive_s *drive = malloc_fseg(sizeof(*drive));
+    if (!drive) {
+        warn_noalloc();
+        return -1;
+    }
+    memset(drive, 0, sizeof(*drive));
+    if (usb_32bit_pipe(data_in))
+        drive->drive.type = DTYPE_UAS_32;
+    else
+        drive->drive.type = DTYPE_UAS;
+    drive->command = command;
+    drive->status = status;
+    drive->data_in = data_in;
+    drive->data_out = data_out;
+    drive->lun = lun;
+
+    int prio = bootprio_find_usb(usbdev, lun);
+    int ret = scsi_drive_setup(&drive->drive, "USB UAS", prio);
+    if (ret) {
+        free(drive);
+        return -1;
+    }
+    return 0;
+}
+
+int
+usb_uas_setup(struct usbdevice_s *usbdev)
+{
+    if (!CONFIG_USB_UAS)
+        return -1;
+
+    // Verify right kind of device
+    struct usb_interface_descriptor *iface = usbdev->iface;
+    if (iface->bInterfaceSubClass != US_SC_SCSI ||
+        iface->bInterfaceProtocol != US_PR_UAS) {
+        dprintf(1, "Unsupported UAS device (subclass=%02x proto=%02x)\n"
+                , iface->bInterfaceSubClass, iface->bInterfaceProtocol);
+        return -1;
+    }
+
+    /* find & allocate pipes */
+    struct usb_endpoint_descriptor *ep = NULL;
+    struct usb_pipe *command = NULL;
+    struct usb_pipe *status = NULL;
+    struct usb_pipe *data_in = NULL;
+    struct usb_pipe *data_out = NULL;
+    u8 *desc = (u8*)iface;
+    while (desc) {
+        desc += desc[0];
+        switch (desc[1]) {
+        case USB_DT_ENDPOINT:
+            ep = (void*)desc;
+            break;
+        case USB_DT_ENDPOINT_COMPANION:
+            /* No support (yet) for usb3 streams */
+            dprintf(1, "Superspeed UAS devices not supported (yet)\n");
+            goto fail;
+        case 0x24:
+            switch (desc[2]) {
+            case UAS_PIPE_ID_COMMAND:
+                command = usb_alloc_pipe(usbdev, ep);
+                break;
+            case UAS_PIPE_ID_STATUS:
+                status = usb_alloc_pipe(usbdev, ep);
+                break;
+            case UAS_PIPE_ID_DATA_IN:
+                data_in = usb_alloc_pipe(usbdev, ep);
+                break;
+            case UAS_PIPE_ID_DATA_OUT:
+                data_out = usb_alloc_pipe(usbdev, ep);
+                break;
+            default:
+                goto fail;
+            }
+            break;
+        default:
+            desc = NULL;
+            break;
+        }
+    }
+    if (!command || !status || !data_in || !data_out)
+        goto fail;
+
+    /* TODO: send REPORT LUNS.  For now, only LUN 0 is recognized.  */
+    int ret = uas_lun_setup(usbdev, command, status, data_in, data_out, 0);
+    if (ret < 0) {
+        dprintf(1, "Unable to configure UAS drive.\n");
+        goto fail;
+    }
+
+    return 0;
+
+fail:
+    usb_free_pipe(usbdev, command);
+    usb_free_pipe(usbdev, status);
+    usb_free_pipe(usbdev, data_in);
+    usb_free_pipe(usbdev, data_out);
+    return -1;
+}