diff options
Diffstat (limited to 'src/disk.c')
| -rw-r--r-- | src/disk.c | 218 |
1 files changed, 109 insertions, 109 deletions
@@ -67,10 +67,10 @@ __disk_stub(struct bregs *regs, int lineno, const char *fname) // Get the cylinders/heads/sectors for the given drive. static struct chs_s -getLCHS(struct drive_s *drive_gf) +getLCHS(struct drive_s *drive_fl) { struct chs_s res = { }; - if (CONFIG_CDROM_EMU && drive_gf == GET_GLOBAL(cdemu_drive_gf)) { + if (CONFIG_CDROM_EMU && drive_fl == GET_GLOBAL(cdemu_drive_gf)) { // Emulated drive - get info from CDEmu. (It's not possible to // populate the geometry directly in the driveid because the // geometry is only known after the bios segment is made @@ -81,9 +81,9 @@ getLCHS(struct drive_s *drive_gf) res.sector = sptcyl & 0x3f; return res; } - res.cylinder = GET_FLATPTR(drive_gf->lchs.cylinder); - res.head = GET_FLATPTR(drive_gf->lchs.head); - res.sector = GET_FLATPTR(drive_gf->lchs.sector); + res.cylinder = GET_FLATPTR(drive_fl->lchs.cylinder); + res.head = GET_FLATPTR(drive_fl->lchs.head); + res.sector = GET_FLATPTR(drive_fl->lchs.sector); return res; } @@ -117,10 +117,10 @@ send_disk_op(struct disk_op_s *op) // Perform read/write/verify using old-style chs accesses static void noinline -basic_access(struct bregs *regs, struct drive_s *drive_gf, u16 command) +basic_access(struct bregs *regs, struct drive_s *drive_fl, u16 command) { struct disk_op_s dop; - dop.drive_gf = drive_gf; + dop.drive_fl = drive_fl; dop.command = command; u8 count = regs->al; @@ -135,7 +135,7 @@ basic_access(struct bregs *regs, struct drive_s *drive_gf, u16 command) } dop.count = count; - struct chs_s chs = getLCHS(drive_gf); + struct chs_s chs = getLCHS(drive_fl); u16 nlc=chs.cylinder, nlh=chs.head, nls=chs.sector; // sanity check on cyl heads, sec @@ -160,15 +160,15 @@ basic_access(struct bregs *regs, struct drive_s *drive_gf, u16 command) // Perform read/write/verify using new-style "int13ext" accesses. static void noinline -extended_access(struct bregs *regs, struct drive_s *drive_gf, u16 command) +extended_access(struct bregs *regs, struct drive_s *drive_fl, u16 command) { struct disk_op_s dop; struct int13ext_s *param_far = (struct int13ext_s*)(regs->si+0); // Get lba and check. dop.lba = GET_FARVAR(regs->ds, param_far->lba); dop.command = command; - dop.drive_gf = drive_gf; - if (dop.lba >= GET_FLATPTR(drive_gf->sectors)) { + dop.drive_fl = drive_fl; + if (dop.lba >= GET_FLATPTR(drive_fl->sectors)) { warn_invalid(regs); disk_ret(regs, DISK_RET_EPARAM); return; @@ -196,10 +196,10 @@ extended_access(struct bregs *regs, struct drive_s *drive_gf, u16 command) // disk controller reset static void -disk_1300(struct bregs *regs, struct drive_s *drive_gf) +disk_1300(struct bregs *regs, struct drive_s *drive_fl) { struct disk_op_s dop; - dop.drive_gf = drive_gf; + dop.drive_fl = drive_fl; dop.command = CMD_RESET; dop.count = 0; int status = send_disk_op(&dop); @@ -208,7 +208,7 @@ disk_1300(struct bregs *regs, struct drive_s *drive_gf) // read disk status static void -disk_1301(struct bregs *regs, struct drive_s *drive_gf) +disk_1301(struct bregs *regs, struct drive_s *drive_fl) { u8 v; if (regs->dl < EXTSTART_HD) @@ -223,32 +223,32 @@ disk_1301(struct bregs *regs, struct drive_s *drive_gf) // read disk sectors static void -disk_1302(struct bregs *regs, struct drive_s *drive_gf) +disk_1302(struct bregs *regs, struct drive_s *drive_fl) { - basic_access(regs, drive_gf, CMD_READ); + basic_access(regs, drive_fl, CMD_READ); } // write disk sectors static void -disk_1303(struct bregs *regs, struct drive_s *drive_gf) +disk_1303(struct bregs *regs, struct drive_s *drive_fl) { - basic_access(regs, drive_gf, CMD_WRITE); + basic_access(regs, drive_fl, CMD_WRITE); } // verify disk sectors static void -disk_1304(struct bregs *regs, struct drive_s *drive_gf) +disk_1304(struct bregs *regs, struct drive_s *drive_fl) { - basic_access(regs, drive_gf, CMD_VERIFY); + basic_access(regs, drive_fl, CMD_VERIFY); } // format disk track static void noinline -disk_1305(struct bregs *regs, struct drive_s *drive_gf) +disk_1305(struct bregs *regs, struct drive_s *drive_fl) { debug_stub(regs); - struct chs_s chs = getLCHS(drive_gf); + struct chs_s chs = getLCHS(drive_fl); u16 nlc=chs.cylinder, nlh=chs.head, nls=chs.sector; u8 count = regs->al; @@ -261,7 +261,7 @@ disk_1305(struct bregs *regs, struct drive_s *drive_gf) } struct disk_op_s dop; - dop.drive_gf = drive_gf; + dop.drive_fl = drive_fl; dop.command = CMD_FORMAT; dop.lba = (((u32)cylinder * (u32)nlh) + (u32)head) * (u32)nls; dop.count = count; @@ -272,10 +272,10 @@ disk_1305(struct bregs *regs, struct drive_s *drive_gf) // read disk drive parameters static void noinline -disk_1308(struct bregs *regs, struct drive_s *drive_gf) +disk_1308(struct bregs *regs, struct drive_s *drive_fl) { // Get logical geometry from table - struct chs_s chs = getLCHS(drive_gf); + struct chs_s chs = getLCHS(drive_fl); u16 nlc=chs.cylinder, nlh=chs.head, nls=chs.sector; nlc--; nlh--; @@ -284,10 +284,10 @@ disk_1308(struct bregs *regs, struct drive_s *drive_gf) // Floppy count = GET_GLOBAL(FloppyCount); - if (CONFIG_CDROM_EMU && drive_gf == GET_GLOBAL(cdemu_drive_gf)) + if (CONFIG_CDROM_EMU && drive_fl == GET_GLOBAL(cdemu_drive_gf)) regs->bx = GET_LOW(CDEmu.media) * 2; else - regs->bx = GET_FLATPTR(drive_gf->floppy_type); + regs->bx = GET_FLATPTR(drive_fl->floppy_type); // set es & di to point to 11 byte diskette param table in ROM regs->es = SEG_BIOS; @@ -323,33 +323,33 @@ disk_1308(struct bregs *regs, struct drive_s *drive_gf) // initialize drive parameters static void -disk_1309(struct bregs *regs, struct drive_s *drive_gf) +disk_1309(struct bregs *regs, struct drive_s *drive_fl) { DISK_STUB(regs); } // seek to specified cylinder static void -disk_130c(struct bregs *regs, struct drive_s *drive_gf) +disk_130c(struct bregs *regs, struct drive_s *drive_fl) { DISK_STUB(regs); } // alternate disk reset static void -disk_130d(struct bregs *regs, struct drive_s *drive_gf) +disk_130d(struct bregs *regs, struct drive_s *drive_fl) { DISK_STUB(regs); } // check drive ready static void -disk_1310(struct bregs *regs, struct drive_s *drive_gf) +disk_1310(struct bregs *regs, struct drive_s *drive_fl) { // should look at 40:8E also??? struct disk_op_s dop; - dop.drive_gf = drive_gf; + dop.drive_fl = drive_fl; dop.command = CMD_ISREADY; dop.count = 0; int status = send_disk_op(&dop); @@ -358,21 +358,21 @@ disk_1310(struct bregs *regs, struct drive_s *drive_gf) // recalibrate static void -disk_1311(struct bregs *regs, struct drive_s *drive_gf) +disk_1311(struct bregs *regs, struct drive_s *drive_fl) { DISK_STUB(regs); } // controller internal diagnostic static void -disk_1314(struct bregs *regs, struct drive_s *drive_gf) +disk_1314(struct bregs *regs, struct drive_s *drive_fl) { DISK_STUB(regs); } // read disk drive size static void noinline -disk_1315(struct bregs *regs, struct drive_s *drive_gf) +disk_1315(struct bregs *regs, struct drive_s *drive_fl) { disk_ret(regs, DISK_RET_SUCCESS); if (regs->dl < EXTSTART_HD || regs->dl >= EXTSTART_CD) { @@ -383,7 +383,7 @@ disk_1315(struct bregs *regs, struct drive_s *drive_gf) // Hard drive // Get logical geometry from table - struct chs_s chs = getLCHS(drive_gf); + struct chs_s chs = getLCHS(drive_fl); u16 nlc=chs.cylinder, nlh=chs.head, nls=chs.sector; // Compute sector count seen by int13 @@ -394,7 +394,7 @@ disk_1315(struct bregs *regs, struct drive_s *drive_gf) } static void -disk_1316(struct bregs *regs, struct drive_s *drive_gf) +disk_1316(struct bregs *regs, struct drive_s *drive_fl) { if (regs->dl >= EXTSTART_HD) { // Hard drive @@ -406,7 +406,7 @@ disk_1316(struct bregs *regs, struct drive_s *drive_gf) // IBM/MS installation check static void -disk_1341(struct bregs *regs, struct drive_s *drive_gf) +disk_1341(struct bregs *regs, struct drive_s *drive_fl) { regs->bx = 0xaa55; // install check regs->cx = 0x0007; // ext disk access and edd, removable supported @@ -416,23 +416,23 @@ disk_1341(struct bregs *regs, struct drive_s *drive_gf) // IBM/MS extended read static void -disk_1342(struct bregs *regs, struct drive_s *drive_gf) +disk_1342(struct bregs *regs, struct drive_s *drive_fl) { - extended_access(regs, drive_gf, CMD_READ); + extended_access(regs, drive_fl, CMD_READ); } // IBM/MS extended write static void -disk_1343(struct bregs *regs, struct drive_s *drive_gf) +disk_1343(struct bregs *regs, struct drive_s *drive_fl) { - extended_access(regs, drive_gf, CMD_WRITE); + extended_access(regs, drive_fl, CMD_WRITE); } // IBM/MS verify static void -disk_1344(struct bregs *regs, struct drive_s *drive_gf) +disk_1344(struct bregs *regs, struct drive_s *drive_fl) { - extended_access(regs, drive_gf, CMD_VERIFY); + extended_access(regs, drive_fl, CMD_VERIFY); } // Locks for removable devices @@ -440,7 +440,7 @@ u8 CDRom_locks[BUILD_MAX_EXTDRIVE] VARLOW; // lock static void -disk_134500(struct bregs *regs, struct drive_s *drive_gf) +disk_134500(struct bregs *regs, struct drive_s *drive_fl) { int cdid = regs->dl - EXTSTART_CD; u8 locks = GET_LOW(CDRom_locks[cdid]); @@ -456,7 +456,7 @@ disk_134500(struct bregs *regs, struct drive_s *drive_gf) // unlock static void -disk_134501(struct bregs *regs, struct drive_s *drive_gf) +disk_134501(struct bregs *regs, struct drive_s *drive_fl) { int cdid = regs->dl - EXTSTART_CD; u8 locks = GET_LOW(CDRom_locks[cdid]); @@ -473,7 +473,7 @@ disk_134501(struct bregs *regs, struct drive_s *drive_gf) // status static void -disk_134502(struct bregs *regs, struct drive_s *drive_gf) +disk_134502(struct bregs *regs, struct drive_s *drive_fl) { int cdid = regs->dl - EXTSTART_CD; u8 locks = GET_LOW(CDRom_locks[cdid]); @@ -482,14 +482,14 @@ disk_134502(struct bregs *regs, struct drive_s *drive_gf) } static void -disk_1345XX(struct bregs *regs, struct drive_s *drive_gf) +disk_1345XX(struct bregs *regs, struct drive_s *drive_fl) { disk_ret_unimplemented(regs, DISK_RET_EPARAM); } // IBM/MS lock/unlock drive static void -disk_1345(struct bregs *regs, struct drive_s *drive_gf) +disk_1345(struct bregs *regs, struct drive_s *drive_fl) { if (regs->dl < EXTSTART_CD) { // Always success for HD @@ -498,16 +498,16 @@ disk_1345(struct bregs *regs, struct drive_s *drive_gf) } switch (regs->al) { - case 0x00: disk_134500(regs, drive_gf); break; - case 0x01: disk_134501(regs, drive_gf); break; - case 0x02: disk_134502(regs, drive_gf); break; - default: disk_1345XX(regs, drive_gf); break; + case 0x00: disk_134500(regs, drive_fl); break; + case 0x01: disk_134501(regs, drive_fl); break; + case 0x02: disk_134502(regs, drive_fl); break; + default: disk_1345XX(regs, drive_fl); break; } } // IBM/MS eject media static void noinline -disk_1346(struct bregs *regs, struct drive_s *drive_gf) +disk_1346(struct bregs *regs, struct drive_s *drive_fl) { if (regs->dl < EXTSTART_CD) { // Volume Not Removable @@ -541,22 +541,22 @@ disk_1346(struct bregs *regs, struct drive_s *drive_gf) // IBM/MS extended seek static void -disk_1347(struct bregs *regs, struct drive_s *drive_gf) +disk_1347(struct bregs *regs, struct drive_s *drive_fl) { - extended_access(regs, drive_gf, CMD_SEEK); + extended_access(regs, drive_fl, CMD_SEEK); } // IBM/MS get drive parameters static void -disk_1348(struct bregs *regs, struct drive_s *drive_gf) +disk_1348(struct bregs *regs, struct drive_s *drive_fl) { - int ret = fill_edd(SEGOFF(regs->ds, regs->si), drive_gf); + int ret = fill_edd(SEGOFF(regs->ds, regs->si), drive_fl); disk_ret(regs, ret); } // IBM/MS extended media change static void -disk_1349(struct bregs *regs, struct drive_s *drive_gf) +disk_1349(struct bregs *regs, struct drive_s *drive_fl) { if (regs->dl < EXTSTART_CD) { // Always success for HD @@ -569,56 +569,56 @@ disk_1349(struct bregs *regs, struct drive_s *drive_gf) } static void -disk_134e01(struct bregs *regs, struct drive_s *drive_gf) +disk_134e01(struct bregs *regs, struct drive_s *drive_fl) { disk_ret(regs, DISK_RET_SUCCESS); } static void -disk_134e03(struct bregs *regs, struct drive_s *drive_gf) +disk_134e03(struct bregs *regs, struct drive_s *drive_fl) { disk_ret(regs, DISK_RET_SUCCESS); } static void -disk_134e04(struct bregs *regs, struct drive_s *drive_gf) +disk_134e04(struct bregs *regs, struct drive_s *drive_fl) { disk_ret(regs, DISK_RET_SUCCESS); } static void -disk_134e06(struct bregs *regs, struct drive_s *drive_gf) +disk_134e06(struct bregs *regs, struct drive_s *drive_fl) { disk_ret(regs, DISK_RET_SUCCESS); } static void -disk_134eXX(struct bregs *regs, struct drive_s *drive_gf) +disk_134eXX(struct bregs *regs, struct drive_s *drive_fl) { disk_ret(regs, DISK_RET_EPARAM); } // IBM/MS set hardware configuration static void -disk_134e(struct bregs *regs, struct drive_s *drive_gf) +disk_134e(struct bregs *regs, struct drive_s *drive_fl) { switch (regs->al) { - case 0x01: disk_134e01(regs, drive_gf); break; - case 0x03: disk_134e03(regs, drive_gf); break; - case 0x04: disk_134e04(regs, drive_gf); break; - case 0x06: disk_134e06(regs, drive_gf); break; - default: disk_134eXX(regs, drive_gf); break; + case 0x01: disk_134e01(regs, drive_fl); break; + case 0x03: disk_134e03(regs, drive_fl); break; + case 0x04: disk_134e04(regs, drive_fl); break; + case 0x06: disk_134e06(regs, drive_fl); break; + default: disk_134eXX(regs, drive_fl); break; } } static void -disk_13XX(struct bregs *regs, struct drive_s *drive_gf) +disk_13XX(struct bregs *regs, struct drive_s *drive_fl) { disk_ret_unimplemented(regs, DISK_RET_EPARAM); } static void -disk_13(struct bregs *regs, struct drive_s *drive_gf) +disk_13(struct bregs *regs, struct drive_s *drive_fl) { //debug_stub(regs); @@ -626,37 +626,37 @@ disk_13(struct bregs *regs, struct drive_s *drive_gf) SET_BDA(disk_interrupt_flag, 0); switch (regs->ah) { - case 0x00: disk_1300(regs, drive_gf); break; - case 0x01: disk_1301(regs, drive_gf); break; - case 0x02: disk_1302(regs, drive_gf); break; - case 0x03: disk_1303(regs, drive_gf); break; - case 0x04: disk_1304(regs, drive_gf); break; - case 0x05: disk_1305(regs, drive_gf); break; - case 0x08: disk_1308(regs, drive_gf); break; - case 0x09: disk_1309(regs, drive_gf); break; - case 0x0c: disk_130c(regs, drive_gf); break; - case 0x0d: disk_130d(regs, drive_gf); break; - case 0x10: disk_1310(regs, drive_gf); break; - case 0x11: disk_1311(regs, drive_gf); break; - case 0x14: disk_1314(regs, drive_gf); break; - case 0x15: disk_1315(regs, drive_gf); break; - case 0x16: disk_1316(regs, drive_gf); break; - case 0x41: disk_1341(regs, drive_gf); break; - case 0x42: disk_1342(regs, drive_gf); break; - case 0x43: disk_1343(regs, drive_gf); break; - case 0x44: disk_1344(regs, drive_gf); break; - case 0x45: disk_1345(regs, drive_gf); break; - case 0x46: disk_1346(regs, drive_gf); break; - case 0x47: disk_1347(regs, drive_gf); break; - case 0x48: disk_1348(regs, drive_gf); break; - case 0x49: disk_1349(regs, drive_gf); break; - case 0x4e: disk_134e(regs, drive_gf); break; - default: disk_13XX(regs, drive_gf); break; + case 0x00: disk_1300(regs, drive_fl); break; + case 0x01: disk_1301(regs, drive_fl); break; + case 0x02: disk_1302(regs, drive_fl); break; + case 0x03: disk_1303(regs, drive_fl); break; + case 0x04: disk_1304(regs, drive_fl); break; + case 0x05: disk_1305(regs, drive_fl); break; + case 0x08: disk_1308(regs, drive_fl); break; + case 0x09: disk_1309(regs, drive_fl); break; + case 0x0c: disk_130c(regs, drive_fl); break; + case 0x0d: disk_130d(regs, drive_fl); break; + case 0x10: disk_1310(regs, drive_fl); break; + case 0x11: disk_1311(regs, drive_fl); break; + case 0x14: disk_1314(regs, drive_fl); break; + case 0x15: disk_1315(regs, drive_fl); break; + case 0x16: disk_1316(regs, drive_fl); break; + case 0x41: disk_1341(regs, drive_fl); break; + case 0x42: disk_1342(regs, drive_fl); break; + case 0x43: disk_1343(regs, drive_fl); break; + case 0x44: disk_1344(regs, drive_fl); break; + case 0x45: disk_1345(regs, drive_fl); break; + case 0x46: disk_1346(regs, drive_fl); break; + case 0x47: disk_1347(regs, drive_fl); break; + case 0x48: disk_1348(regs, drive_fl); break; + case 0x49: disk_1349(regs, drive_fl); break; + case 0x4e: disk_134e(regs, drive_fl); break; + default: disk_13XX(regs, drive_fl); break; } } static void -floppy_13(struct bregs *regs, struct drive_s *drive_gf) +floppy_13(struct bregs *regs, struct drive_s *drive_fl) { // Only limited commands are supported on floppies. switch (regs->ah) { @@ -669,9 +669,9 @@ floppy_13(struct bregs *regs, struct drive_s *drive_gf) case 0x08: case 0x15: case 0x16: - disk_13(regs, drive_gf); + disk_13(regs, drive_fl); break; - default: disk_13XX(regs, drive_gf); break; + default: disk_13XX(regs, drive_fl); break; } } @@ -707,21 +707,21 @@ handle_legacy_disk(struct bregs *regs, u8 extdrive) } if (extdrive < EXTSTART_HD) { - struct drive_s *drive_gf = getDrive(EXTTYPE_FLOPPY, extdrive); - if (!drive_gf) + struct drive_s *drive_fl = getDrive(EXTTYPE_FLOPPY, extdrive); + if (!drive_fl) goto fail; - floppy_13(regs, drive_gf); + floppy_13(regs, drive_fl); return; } - struct drive_s *drive_gf; + struct drive_s *drive_fl; if (extdrive >= EXTSTART_CD) - drive_gf = getDrive(EXTTYPE_CD, extdrive - EXTSTART_CD); + drive_fl = getDrive(EXTTYPE_CD, extdrive - EXTSTART_CD); else - drive_gf = getDrive(EXTTYPE_HD, extdrive - EXTSTART_HD); - if (!drive_gf) + drive_fl = getDrive(EXTTYPE_HD, extdrive - EXTSTART_HD); + if (!drive_fl) goto fail; - disk_13(regs, drive_gf); + disk_13(regs, drive_fl); return; fail: |