grml...

[seabios.git] / src / usb-msc.c

diff --git a/src/usb-msc.c b/src/usb-msc.c
index 37644814960b0bc71a953634e824813d3a6a6e98..4a09972b5f63381aaa592df63fd31629092c8a7f 100644 (file)
--- a/src/usb-msc.c
+++ b/src/usb-msc.c
@@ -73,13 +73,13 @@ usb_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize)
     u32 bytes = blocksize * op->count;
     struct cbw_s cbw;
     memset(&cbw, 0, sizeof(cbw));
+    memcpy(cbw.CBWCB, cdbcmd, USB_CDB_SIZE);
     cbw.dCBWSignature = CBW_SIGNATURE;
     cbw.dCBWTag = 999; // XXX
     cbw.dCBWDataTransferLength = bytes;
-    cbw.bmCBWFlags = USB_DIR_IN; // XXX
+    cbw.bmCBWFlags = (cbw.CBWCB[0] == CDB_CMD_WRITE_10) ? USB_DIR_OUT : USB_DIR_IN;
     cbw.bCBWLUN = 0; // XXX
     cbw.bCBWCBLength = USB_CDB_SIZE;
-    memcpy(cbw.CBWCB, cdbcmd, USB_CDB_SIZE);
 
     // Transfer cbw to device.
     int ret = usb_msc_send(udrive_g, USB_DIR_OUT
@@ -87,9 +87,9 @@ usb_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize)
     if (ret)
         goto fail;
 
-    // Transfer data from device.
+    // Transfer data to/from device.
     if (bytes) {
-        ret = usb_msc_send(udrive_g, USB_DIR_IN, op->buf_fl, bytes);
+        ret = usb_msc_send(udrive_g, cbw.bmCBWFlags, op->buf_fl, bytes);
         if (ret)
             goto fail;
     }
@@ -118,76 +118,34 @@ fail:
 }
 
 
-/****************************************************************
- * Drive ops
- ****************************************************************/
-
-// 16bit command demuxer for ATAPI cdroms.
-int
-process_usb_op(struct disk_op_s *op)
-{
-    if (!CONFIG_USB_MSC)
-        return 0;
-    switch (op->command) {
-    case CMD_READ:
-        return cdb_read(op);
-    case CMD_FORMAT:
-    case CMD_WRITE:
-        return DISK_RET_EWRITEPROTECT;
-    case CMD_RESET:
-    case CMD_ISREADY:
-    case CMD_VERIFY:
-    case CMD_SEEK:
-        return DISK_RET_SUCCESS;
-    default:
-        op->count = 0;
-        return DISK_RET_EPARAM;
-    }
-}
-
-
 /****************************************************************
  * Setup
  ****************************************************************/
 
 static int
-setup_drive_cdrom(struct disk_op_s *op, char *desc)
+setup_drive_cdrom(struct drive_s *drive, char *desc)
 {
-    op->drive_g->blksize = CDROM_SECTOR_SIZE;
-    op->drive_g->sectors = (u64)-1;
+    drive->sectors = (u64)-1;
     struct usb_pipe *pipe = container_of(
-        op->drive_g, struct usbdrive_s, drive)->bulkout;
+        drive, struct usbdrive_s, drive)->bulkout;
     int prio = bootprio_find_usb(pipe->cntl->pci, pipe->path);
-    boot_add_cd(op->drive_g, desc, prio);
+    boot_add_cd(drive, desc, prio);
     return 0;
 }
 
 static int
-setup_drive_hd(struct disk_op_s *op, char *desc)
+setup_drive_hd(struct drive_s *drive, char *desc)
 {
-    struct cdbres_read_capacity info;
-    int ret = cdb_read_capacity(op, &info);
-    if (ret)
-        return ret;
-    // XXX - retry for some timeout?
-
-    u32 blksize = ntohl(info.blksize), sectors = ntohl(info.sectors);
-    if (blksize != DISK_SECTOR_SIZE) {
-        if (blksize == CDROM_SECTOR_SIZE)
-            return setup_drive_cdrom(op, desc);
-        dprintf(1, "Unsupported USB MSC block size %d\n", blksize);
+    if (drive->blksize != DISK_SECTOR_SIZE) {
+        dprintf(1, "Unsupported USB MSC block size %d\n", drive->blksize);
         return -1;
     }
-    op->drive_g->blksize = blksize;
-    op->drive_g->sectors = sectors;
-    dprintf(1, "USB MSC blksize=%d sectors=%d\n", blksize, sectors);
 
     // Register with bcv system.
     struct usb_pipe *pipe = container_of(
-        op->drive_g, struct usbdrive_s, drive)->bulkout;
+        drive, struct usbdrive_s, drive)->bulkout;
     int prio = bootprio_find_usb(pipe->cntl->pci, pipe->path);
-    boot_add_hd(op->drive_g, desc, prio);
-
+    boot_add_hd(drive, desc, prio);
     return 0;
 }
 
@@ -230,37 +188,17 @@ usb_msc_init(struct usb_pipe *pipe
     if (!udrive_g->bulkin || !udrive_g->bulkout)
         goto fail;
 
-    // Validate drive and find block size and sector count.
-    struct disk_op_s dop;
-    memset(&dop, 0, sizeof(dop));
-    dop.drive_g = &udrive_g->drive;
-    struct cdbres_inquiry data;
-    int ret = cdb_get_inquiry(&dop, &data);
+    int ret, pdt;
+    char *desc = NULL;
+    ret = scsi_init_drive(&udrive_g->drive, "USB MSC", &pdt, &desc);
     if (ret)
         goto fail;
-    char vendor[sizeof(data.vendor)+1], product[sizeof(data.product)+1];
-    char rev[sizeof(data.rev)+1];
-    strtcpy(vendor, data.vendor, sizeof(vendor));
-    nullTrailingSpace(vendor);
-    strtcpy(product, data.product, sizeof(product));
-    nullTrailingSpace(product);
-    strtcpy(rev, data.rev, sizeof(rev));
-    nullTrailingSpace(rev);
-    int pdt = data.pdt & 0x1f;
-    int removable = !!(data.removable & 0x80);
-    dprintf(1, "USB MSC vendor='%s' product='%s' rev='%s' type=%d removable=%d\n"
-            , vendor, product, rev, pdt, removable);
-    udrive_g->drive.removable = removable;
-
-    if (pdt == USB_MSC_TYPE_CDROM) {
-        char *desc = znprintf(MAXDESCSIZE, "DVD/CD [USB Drive %s %s %s]"
-                              , vendor, product, rev);
-        ret = setup_drive_cdrom(&dop, desc);
-    } else {
-        char *desc = znprintf(MAXDESCSIZE, "USB Drive %s %s %s"
-                              , vendor, product, rev);
-        ret = setup_drive_hd(&dop, desc);
-    }
+
+    if (pdt == SCSI_TYPE_CDROM)
+        ret = setup_drive_cdrom(&udrive_g->drive, desc);
+    else
+        ret = setup_drive_hd(&udrive_g->drive, desc);
+
     if (ret)
         goto fail;