[SeaBIOS] [PATCH 2/4] disk: Don't require the 'struct drive_s' to be in the f-segment

[Kevin O'Connor]

Allow the 'struct drive_s' drive description structure to be in either
the "low" memory segment or the f-segment.

Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
---
 src/block.c       | 22 +++++++++++-----------
 src/disk.c        | 10 +++++-----
 src/hw/blockcmd.c |  4 ++--
 3 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/src/block.c b/src/block.c
index d104f6d..8c5fb2d 100644
--- a/src/block.c
+++ b/src/block.c
@@ -312,12 +312,12 @@ fill_generic_edd(struct segoff_s edd, struct drive_s *drive_gf
 
     // EDD 1.x
 
-    u8  type    = GET_GLOBALFLAT(drive_gf->type);
-    u16 npc     = GET_GLOBALFLAT(drive_gf->pchs.cylinder);
-    u16 nph     = GET_GLOBALFLAT(drive_gf->pchs.head);
-    u16 nps     = GET_GLOBALFLAT(drive_gf->pchs.sector);
-    u64 lba     = GET_GLOBALFLAT(drive_gf->sectors);
-    u16 blksize = GET_GLOBALFLAT(drive_gf->blksize);
+    u8  type    = GET_FLATPTR(drive_gf->type);
+    u16 npc     = GET_FLATPTR(drive_gf->pchs.cylinder);
+    u16 nph     = GET_FLATPTR(drive_gf->pchs.head);
+    u16 nps     = GET_FLATPTR(drive_gf->pchs.sector);
+    u64 lba     = GET_FLATPTR(drive_gf->sectors);
+    u16 blksize = GET_FLATPTR(drive_gf->blksize);
 
     dprintf(DEBUG_HDL_13, "disk_1348 size=%d t=%d chs=%d,%d,%d lba=%d bs=%d\n"
             , size, type, npc, nph, nps, (u32)lba, blksize);
@@ -469,7 +469,7 @@ fill_ata_edd(struct segoff_s edd, struct drive_s *drive_gf)
 int noinline
 fill_edd(struct segoff_s edd, struct drive_s *drive_gf)
 {
-    switch (GET_GLOBALFLAT(drive_gf->type)) {
+    switch (GET_FLATPTR(drive_gf->type)) {
     case DTYPE_ATA:
     case DTYPE_ATA_ATAPI:
         return fill_ata_edd(edd, drive_gf);
@@ -477,7 +477,7 @@ fill_edd(struct segoff_s edd, struct drive_s *drive_gf)
     case DTYPE_VIRTIO_SCSI:
         return fill_generic_edd(
             edd, drive_gf, 0xffffffff, EDD_PCI | EDD_SCSI
-            , edd_pci_path(GET_GLOBALFLAT(drive_gf->cntl_id), 0), 0);
+            , edd_pci_path(GET_FLATPTR(drive_gf->cntl_id), 0), 0);
     default:
         return fill_generic_edd(edd, drive_gf, 0, 0, 0, 0);
     }
@@ -527,7 +527,7 @@ default_process_op(struct disk_op_s *op)
 static int
 process_op_both(struct disk_op_s *op)
 {
-    switch (GET_GLOBALFLAT(op->drive_gf->type)) {
+    switch (GET_FLATPTR(op->drive_gf->type)) {
     case DTYPE_ATA_ATAPI:
         return ata_atapi_process_op(op);
     case DTYPE_USB:
@@ -585,7 +585,7 @@ static int
 process_op_16(struct disk_op_s *op)
 {
     ASSERT16();
-    switch (GET_GLOBALFLAT(op->drive_gf->type)) {
+    switch (GET_FLATPTR(op->drive_gf->type)) {
     case DTYPE_FLOPPY:
         return floppy_process_op(op);
     case DTYPE_ATA:
@@ -608,7 +608,7 @@ process_op(struct disk_op_s *op)
             , op->count, op->command);
 
     int ret, origcount = op->count;
-    if (origcount * GET_GLOBALFLAT(op->drive_gf->blksize) > 64*1024) {
+    if (origcount * GET_FLATPTR(op->drive_gf->blksize) > 64*1024) {
         op->count = 0;
         return DISK_RET_EBOUNDARY;
     }
diff --git a/src/disk.c b/src/disk.c
index 6e58428..5a4fe9d 100644
--- a/src/disk.c
+++ b/src/disk.c
@@ -81,9 +81,9 @@ getLCHS(struct drive_s *drive_gf)
         res.sector = sptcyl & 0x3f;
         return res;
     }
-    res.cylinder = GET_GLOBALFLAT(drive_gf->lchs.cylinder);
-    res.head = GET_GLOBALFLAT(drive_gf->lchs.head);
-    res.sector = GET_GLOBALFLAT(drive_gf->lchs.sector);
+    res.cylinder = GET_FLATPTR(drive_gf->lchs.cylinder);
+    res.head = GET_FLATPTR(drive_gf->lchs.head);
+    res.sector = GET_FLATPTR(drive_gf->lchs.sector);
     return res;
 }
 
@@ -168,7 +168,7 @@ extended_access(struct bregs *regs, struct drive_s *drive_gf, u16 command)
     dop.lba = GET_FARVAR(regs->ds, param_far->lba);
     dop.command = command;
     dop.drive_gf = drive_gf;
-    if (dop.lba >= GET_GLOBALFLAT(drive_gf->sectors)) {
+    if (dop.lba >= GET_FLATPTR(drive_gf->sectors)) {
         warn_invalid(regs);
         disk_ret(regs, DISK_RET_EPARAM);
         return;
@@ -287,7 +287,7 @@ disk_1308(struct bregs *regs, struct drive_s *drive_gf)
         if (CONFIG_CDROM_EMU && drive_gf == GET_GLOBAL(cdemu_drive_gf))
             regs->bx = GET_LOW(CDEmu.media) * 2;
         else
-            regs->bx = GET_GLOBALFLAT(drive_gf->floppy_type);
+            regs->bx = GET_FLATPTR(drive_gf->floppy_type);
 
         // set es & di to point to 11 byte diskette param table in ROM
         regs->es = SEG_BIOS;
diff --git a/src/hw/blockcmd.c b/src/hw/blockcmd.c
index 98c06ce..f260dd8 100644
--- a/src/hw/blockcmd.c
+++ b/src/hw/blockcmd.c
@@ -5,10 +5,10 @@
 //
 // This file may be distributed under the terms of the GNU LGPLv3 license.
 
-#include "biosvar.h" // GET_GLOBALFLAT
 #include "block.h" // struct disk_op_s
 #include "blockcmd.h" // struct cdb_request_sense
 #include "byteorder.h" // be32_to_cpu
+#include "farptr.h" // GET_FLATPTR
 #include "output.h" // dprintf
 #include "std/disk.h" // DISK_RET_EPARAM
 #include "string.h" // memset
@@ -117,7 +117,7 @@ scsi_fill_cmd(struct disk_op_s *op, void *cdbcmd, int maxcdb)
                         : CDB_CMD_WRITE_10);
         cmd->lba = cpu_to_be32(op->lba);
         cmd->count = cpu_to_be16(op->count);
-        return GET_GLOBALFLAT(op->drive_gf->blksize);
+        return GET_FLATPTR(op->drive_gf->blksize);
     case CMD_SCSI:
         if (MODESEGMENT)
             return -1;
-- 
2.9.4