Add qemu 2.4.0

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

1 files changed, 217 insertions, 0 deletions

diff --git a/qemu/roms/seabios/src/hw/lsi-scsi.c b/qemu/roms/seabios/src/hw/lsi-scsi.c
new file mode 100644
index 000000000..b1d6bbf4b
--- /dev/null
+++ b/qemu/roms/seabios/src/hw/lsi-scsi.c
@@ -0,0 +1,217 @@
+// (qemu-emulated) lsi53c895a boot support.
+//
+// Copyright (C) 2012 Red Hat Inc.
+//
+// Authors:
+//  Gerd Hoffmann <kraxel@redhat.com>
+//
+// based on virtio-scsi.c which is written by:
+//  Paolo Bonzini <pbonzini@redhat.com>
+//
+// This file may be distributed under the terms of the GNU LGPLv3 license.
+
+#include "biosvar.h" // GET_GLOBALFLAT
+#include "block.h" // struct drive_s
+#include "blockcmd.h" // scsi_drive_setup
+#include "config.h" // CONFIG_*
+#include "fw/paravirt.h" // runningOnQEMU
+#include "malloc.h" // free
+#include "output.h" // dprintf
+#include "pci.h" // foreachpci
+#include "pci_ids.h" // PCI_DEVICE_ID_VIRTIO_BLK
+#include "pci_regs.h" // PCI_VENDOR_ID
+#include "std/disk.h" // DISK_RET_SUCCESS
+#include "string.h" // memset
+#include "util.h" // usleep
+
+#define LSI_REG_DSTAT     0x0c
+#define LSI_REG_ISTAT0    0x14
+#define LSI_REG_DSP0      0x2c
+#define LSI_REG_DSP1      0x2d
+#define LSI_REG_DSP2      0x2e
+#define LSI_REG_DSP3      0x2f
+#define LSI_REG_SIST0     0x42
+#define LSI_REG_SIST1     0x43
+
+#define LSI_ISTAT0_DIP    0x01
+#define LSI_ISTAT0_SIP    0x02
+#define LSI_ISTAT0_INTF   0x04
+#define LSI_ISTAT0_CON    0x08
+#define LSI_ISTAT0_SEM    0x10
+#define LSI_ISTAT0_SIGP   0x20
+#define LSI_ISTAT0_SRST   0x40
+#define LSI_ISTAT0_ABRT   0x80
+
+struct lsi_lun_s {
+    struct drive_s drive;
+    struct pci_device *pci;
+    u32 iobase;
+    u8 target;
+    u8 lun;
+};
+
+static int
+lsi_scsi_cmd(struct lsi_lun_s *llun_gf, struct disk_op_s *op,
+             void *cdbcmd, u16 target, u16 lun, u16 blocksize)
+{
+    u32 iobase = GET_GLOBALFLAT(llun_gf->iobase);
+    u32 dma = ((cdb_is_read(cdbcmd, blocksize) ? 0x01000000 : 0x00000000) |
+               (op->count * blocksize));
+    u8 msgout[] = {
+        0x80 | lun,                 // select lun
+        0x08,
+    };
+    u8 status = 0xff;
+    u8 msgin_tmp[2];
+    u8 msgin = 0xff;
+
+    u32 script[] = {
+        /* select target, send scsi command */
+        0x40000000 | target << 16,  // select target
+        0x00000000,
+        0x06000001,                 // msgout
+        (u32)MAKE_FLATPTR(GET_SEG(SS), &msgout),
+        0x02000010,                 // scsi command
+        (u32)MAKE_FLATPTR(GET_SEG(SS), cdbcmd),
+
+        /* handle disconnect */
+        0x87820000,                 // phase == msgin ?
+        0x00000018,
+        0x07000002,                 // msgin
+        (u32)MAKE_FLATPTR(GET_SEG(SS), &msgin_tmp),
+        0x50000000,                 // re-select
+        0x00000000,
+        0x07000002,                 // msgin
+        (u32)MAKE_FLATPTR(GET_SEG(SS), &msgin_tmp),
+
+        /* dma data, get status, raise irq */
+        dma,                        // dma data
+        (u32)op->buf_fl,
+        0x03000001,                 // status
+        (u32)MAKE_FLATPTR(GET_SEG(SS), &status),
+        0x07000001,                 // msgin
+        (u32)MAKE_FLATPTR(GET_SEG(SS), &msgin),
+        0x98080000,                 // dma irq
+        0x00000000,
+    };
+    u32 dsp = (u32)MAKE_FLATPTR(GET_SEG(SS), &script);
+
+    outb(dsp         & 0xff, iobase + LSI_REG_DSP0);
+    outb((dsp >>  8) & 0xff, iobase + LSI_REG_DSP1);
+    outb((dsp >> 16) & 0xff, iobase + LSI_REG_DSP2);
+    outb((dsp >> 24) & 0xff, iobase + LSI_REG_DSP3);
+
+    for (;;) {
+        u8 dstat = inb(iobase + LSI_REG_DSTAT);
+        u8 sist0 = inb(iobase + LSI_REG_SIST0);
+        u8 sist1 = inb(iobase + LSI_REG_SIST1);
+        if (sist0 || sist1) {
+            goto fail;
+        }
+        if (dstat & 0x04) {
+            break;
+        }
+        usleep(5);
+    }
+
+    if (msgin == 0 && status == 0) {
+        return DISK_RET_SUCCESS;
+    }
+
+fail:
+    return DISK_RET_EBADTRACK;
+}
+
+int
+lsi_scsi_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize)
+{
+    if (!CONFIG_LSI_SCSI)
+        return DISK_RET_EBADTRACK;
+
+    struct lsi_lun_s *llun_gf =
+        container_of(op->drive_gf, struct lsi_lun_s, drive);
+
+    return lsi_scsi_cmd(llun_gf, op, cdbcmd,
+                        GET_GLOBALFLAT(llun_gf->target),
+                        GET_GLOBALFLAT(llun_gf->lun),
+                        blocksize);
+}
+
+static int
+lsi_scsi_add_lun(struct pci_device *pci, u32 iobase, u8 target, u8 lun)
+{
+    struct lsi_lun_s *llun = malloc_fseg(sizeof(*llun));
+    if (!llun) {
+        warn_noalloc();
+        return -1;
+    }
+    memset(llun, 0, sizeof(*llun));
+    llun->drive.type = DTYPE_LSI_SCSI;
+    llun->drive.cntl_id = pci->bdf;
+    llun->pci = pci;
+    llun->target = target;
+    llun->lun = lun;
+    llun->iobase = iobase;
+
+    char *name = znprintf(16, "lsi %02x:%02x.%x %d:%d",
+                          pci_bdf_to_bus(pci->bdf), pci_bdf_to_dev(pci->bdf),
+                          pci_bdf_to_fn(pci->bdf), target, lun);
+    int prio = bootprio_find_scsi_device(pci, target, lun);
+    int ret = scsi_drive_setup(&llun->drive, name, prio);
+    free(name);
+    if (ret)
+        goto fail;
+    return 0;
+
+fail:
+    free(llun);
+    return -1;
+}
+
+static void
+lsi_scsi_scan_target(struct pci_device *pci, u32 iobase, u8 target)
+{
+    /* TODO: send REPORT LUNS.  For now, only LUN 0 is recognized.  */
+    lsi_scsi_add_lun(pci, iobase, target, 0);
+}
+
+static void
+init_lsi_scsi(struct pci_device *pci)
+{
+    u16 bdf = pci->bdf;
+    u32 iobase = pci_config_readl(pci->bdf, PCI_BASE_ADDRESS_0)
+        & PCI_BASE_ADDRESS_IO_MASK;
+
+    pci_config_maskw(bdf, PCI_COMMAND, 0, PCI_COMMAND_MASTER);
+
+    dprintf(1, "found lsi53c895a at %02x:%02x.%x, io @ %x\n",
+            pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf),
+            pci_bdf_to_fn(bdf), iobase);
+
+    // reset
+    outb(LSI_ISTAT0_SRST, iobase + LSI_REG_ISTAT0);
+
+    int i;
+    for (i = 0; i < 7; i++)
+        lsi_scsi_scan_target(pci, iobase, i);
+
+    return;
+}
+
+void
+lsi_scsi_setup(void)
+{
+    ASSERT32FLAT();
+    if (!CONFIG_LSI_SCSI || !runningOnQEMU())
+        return;
+
+    dprintf(3, "init lsi53c895a\n");
+
+    struct pci_device *pci;
+    foreachpci(pci) {
+        if (pci->vendor != PCI_VENDOR_ID_LSI_LOGIC
+            || pci->device != PCI_DEVICE_ID_LSI_53C895A)
+            continue;
+        init_lsi_scsi(pci);
+    }
+}