diff options
Diffstat (limited to 'qemu/roms/seabios/src/hw/lsi-scsi.c')
-rw-r--r-- | qemu/roms/seabios/src/hw/lsi-scsi.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/qemu/roms/seabios/src/hw/lsi-scsi.c b/qemu/roms/seabios/src/hw/lsi-scsi.c deleted file mode 100644 index ad3352886..000000000 --- a/qemu/roms/seabios/src/hw/lsi-scsi.c +++ /dev/null @@ -1,211 +0,0 @@ -// (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; -}; - -int -lsi_scsi_process_op(struct disk_op_s *op) -{ - if (!CONFIG_LSI_SCSI) - return DISK_RET_EBADTRACK; - struct lsi_lun_s *llun_gf = - container_of(op->drive_gf, struct lsi_lun_s, drive); - u16 target = GET_GLOBALFLAT(llun_gf->target); - u16 lun = GET_GLOBALFLAT(llun_gf->lun); - u8 cdbcmd[16]; - int blocksize = scsi_fill_cmd(op, cdbcmd, sizeof(cdbcmd)); - if (blocksize < 0) - return default_process_op(op); - u32 iobase = GET_GLOBALFLAT(llun_gf->iobase); - u32 dma = ((scsi_is_read(op) ? 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; -} - -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); - } -} |