// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
// Copyright (C) 2002 MandrakeSoft S.A.
//
-// This file may be distributed under the terms of the GNU GPLv3 license.
+// This file may be distributed under the terms of the GNU LGPLv3 license.
#include "disk.h" // floppy_13
-#include "biosvar.h" // struct bregs
+#include "biosvar.h" // SET_BDA
#include "config.h" // CONFIG_*
#include "util.h" // debug_enter
-#include "ata.h" // ATA_*
-
-#define DEBUGF1(fmt, args...) bprintf(0, fmt , ##args)
-#define DEBUGF(fmt, args...)
+#include "pic.h" // eoi_pic2
+#include "bregs.h" // struct bregs
+#include "pci.h" // pci_bdf_to_bus
+#include "atabits.h" // ATA_CB_STAT
/****************************************************************
****************************************************************/
void
-__disk_ret(const char *fname, struct bregs *regs, u8 code)
+__disk_ret(struct bregs *regs, u32 linecode, const char *fname)
{
+ u8 code = linecode;
SET_BDA(disk_last_status, code);
if (code)
- __set_code_fail(fname, regs, code);
+ __set_code_fail(regs, linecode, fname);
else
set_code_success(regs);
}
static void
-__disk_stub(const char *fname, struct bregs *regs)
+__disk_stub(struct bregs *regs, int lineno, const char *fname)
{
- __debug_stub(fname, regs);
- __disk_ret(fname, regs, DISK_RET_SUCCESS);
+ __debug_stub(regs, lineno, fname);
+ __disk_ret(regs, DISK_RET_SUCCESS | (lineno << 8), fname);
}
-#define DISK_STUB(regs) \
- __disk_stub(__func__, (regs))
+#define DISK_STUB(regs) \
+ __disk_stub((regs), __LINE__, __func__)
+
+static int
+__send_disk_op(struct disk_op_s *op_p, u16 op_s)
+{
+ struct disk_op_s dop;
+ memcpy_far(MAKE_FARPTR(GET_SEG(SS), &dop)
+ , MAKE_FARPTR(op_s, op_p)
+ , sizeof(dop));
+
+ dprintf(DEBUG_HDL_13, "disk_op d=%d lba=%d buf=%p count=%d cmd=%d\n"
+ , dop.driveid, (u32)dop.lba, dop.far_buffer
+ , dop.count, dop.command);
+
+ irq_enable();
+
+ int status;
+ if (dop.command == CMD_CDEMU_READ)
+ status = cdrom_read_512(&dop);
+ else if (dop.command == CMD_CDROM_READ)
+ status = cdrom_read(&dop);
+ else
+ status = ata_cmd_data(&dop);
+
+ irq_disable();
+
+ return status;
+}
+
+static int
+send_disk_op(struct disk_op_s *op)
+{
+ return stack_hop((u32)op, GET_SEG(SS), 0, __send_disk_op);
+}
static void
basic_access(struct bregs *regs, u8 device, u16 command)
{
- u8 type = GET_EBDA(ata.devices[device].type);
+ struct disk_op_s dop;
+ dop.lba = 0;
+ dop.driveid = device;
+ u8 type = GET_GLOBAL(ATA.devices[device].type);
u16 nlc, nlh, nlspt;
if (type == ATA_TYPE_ATA) {
- nlc = GET_EBDA(ata.devices[device].lchs.cylinders);
- nlh = GET_EBDA(ata.devices[device].lchs.heads);
- nlspt = GET_EBDA(ata.devices[device].lchs.spt);
+ nlc = GET_GLOBAL(ATA.devices[device].lchs.cylinders);
+ nlh = GET_GLOBAL(ATA.devices[device].lchs.heads);
+ nlspt = GET_GLOBAL(ATA.devices[device].lchs.spt);
+ dop.command = command;
} else {
// Must be cd emulation.
- nlc = GET_EBDA(cdemu.vdevice.cylinders);
- nlh = GET_EBDA(cdemu.vdevice.heads);
- nlspt = GET_EBDA(cdemu.vdevice.spt);
+ u16 ebda_seg = get_ebda_seg();
+ nlc = GET_EBDA2(ebda_seg, cdemu.cylinders);
+ nlh = GET_EBDA2(ebda_seg, cdemu.heads);
+ nlspt = GET_EBDA2(ebda_seg, cdemu.spt);
+ dop.lba = GET_EBDA2(ebda_seg, cdemu.ilba) * 4;
+ dop.command = CMD_CDEMU_READ;
}
- u16 count = regs->al;
+ dop.count = regs->al;
u16 cylinder = regs->ch | ((((u16) regs->cl) << 2) & 0x300);
u16 sector = regs->cl & 0x3f;
u16 head = regs->dh;
- if (count > 128 || count == 0 || sector == 0) {
+ if (dop.count > 128 || dop.count == 0 || sector == 0) {
dprintf(1, "int13_harddisk: function %02x, parameter out of range!\n"
, regs->ah);
disk_ret(regs, DISK_RET_EPARAM);
}
// translate lchs to lba
- u32 lba = (((((u32)cylinder * (u32)nlh) + (u32)head) * (u32)nlspt)
- + (u32)sector - 1);
+ dop.lba += (((((u32)cylinder * (u32)nlh) + (u32)head) * (u32)nlspt)
+ + (u32)sector - 1);
u16 segment = regs->es;
u16 offset = regs->bx;
- void *far_buffer = MAKE_FARPTR(segment, offset);
-
- irq_enable();
-
- int status;
- if (type == ATA_TYPE_ATA)
- status = ata_cmd_data(device, command, lba, count, far_buffer);
- else
- status = cdrom_read_emu(device, lba, count, far_buffer);
+ dop.far_buffer = MAKE_FARPTR(segment, offset);
- irq_disable();
+ int status = send_disk_op(&dop);
// Set nb of sector transferred
- regs->al = GET_EBDA(ata.trsfsectors);
+ regs->al = GET_EBDA(sector_count);
if (status != 0) {
- dprintf(1, "int13_harddisk: function %02x, error %02x !\n"
+ dprintf(1, "int13_harddisk: function %02x, error %d!\n"
, regs->ah, status);
disk_ret(regs, DISK_RET_EBADTRACK);
+ return;
}
disk_ret(regs, DISK_RET_SUCCESS);
}
static void
extended_access(struct bregs *regs, u8 device, u16 command)
{
+ struct disk_op_s dop;
// Get lba and check.
- u64 lba = GET_INT13EXT(regs, lba);
- u8 type = GET_EBDA(ata.devices[device].type);
- if (type == ATA_TYPE_ATA
- && lba >= GET_EBDA(ata.devices[device].sectors)) {
- dprintf(1, "int13_harddisk: function %02x. LBA out of range\n"
- , regs->ah);
- disk_ret(regs, DISK_RET_EPARAM);
- return;
+ dop.lba = GET_INT13EXT(regs, lba);
+ dop.command = command;
+ dop.driveid = device;
+ u8 type = GET_GLOBAL(ATA.devices[device].type);
+ if (type == ATA_TYPE_ATA) {
+ if (dop.lba >= GET_GLOBAL(ATA.devices[device].sectors)) {
+ dprintf(1, "int13_harddisk: function %02x. LBA out of range\n"
+ , regs->ah);
+ disk_ret(regs, DISK_RET_EPARAM);
+ return;
+ }
+ } else {
+ dop.command = CMD_CDROM_READ;
}
if (!command) {
u16 segment = GET_INT13EXT(regs, segment);
u16 offset = GET_INT13EXT(regs, offset);
- void *far_buffer = MAKE_FARPTR(segment, offset);
- u16 count = GET_INT13EXT(regs, count);
-
- irq_enable();
-
- u8 status;
- if (type == ATA_TYPE_ATA)
- status = ata_cmd_data(device, command, lba, count, far_buffer);
- else
- status = cdrom_read(device, lba, count, far_buffer);
+ dop.far_buffer = MAKE_FARPTR(segment, offset);
+ dop.count = GET_INT13EXT(regs, count);
- irq_disable();
+ int status = send_disk_op(&dop);
- SET_INT13EXT(regs, count, GET_EBDA(ata.trsfsectors));
+ SET_INT13EXT(regs, count, GET_EBDA(sector_count));
if (status != 0) {
- dprintf(1, "int13_harddisk: function %02x, error %02x !\n"
+ dprintf(1, "int13_harddisk: function %02x, error %d!\n"
, regs->ah, status);
disk_ret(regs, DISK_RET_EBADTRACK);
return;
disk_1308(struct bregs *regs, u8 device)
{
// Get logical geometry from table
- u16 nlc = GET_EBDA(ata.devices[device].lchs.cylinders);
- u16 nlh = GET_EBDA(ata.devices[device].lchs.heads);
- u16 nlspt = GET_EBDA(ata.devices[device].lchs.spt);
- u16 count = GET_EBDA(ata.hdcount);
+ u16 nlc = GET_GLOBAL(ATA.devices[device].lchs.cylinders);
+ u16 nlh = GET_GLOBAL(ATA.devices[device].lchs.heads);
+ u16 nlspt = GET_GLOBAL(ATA.devices[device].lchs.spt);
+ u16 count = GET_BDA(hdcount);
nlc = nlc - 2; /* 0 based , last sector not used */
regs->al = 0;
// should look at 40:8E also???
// Read the status from controller
- u8 status = inb(GET_EBDA(ata.channels[device/2].iobase1) + ATA_CB_STAT);
+ u8 status = inb(GET_GLOBAL(ATA.channels[device/2].iobase1) + ATA_CB_STAT);
if ( (status & ( ATA_CB_STAT_BSY | ATA_CB_STAT_RDY )) == ATA_CB_STAT_RDY )
disk_ret(regs, DISK_RET_SUCCESS);
else
disk_1315(struct bregs *regs, u8 device)
{
// Get logical geometry from table
- u16 nlc = GET_EBDA(ata.devices[device].lchs.cylinders);
- u16 nlh = GET_EBDA(ata.devices[device].lchs.heads);
- u16 nlspt = GET_EBDA(ata.devices[device].lchs.spt);
+ u16 nlc = GET_GLOBAL(ATA.devices[device].lchs.cylinders);
+ u16 nlh = GET_GLOBAL(ATA.devices[device].lchs.heads);
+ u16 nlspt = GET_GLOBAL(ATA.devices[device].lchs.spt);
// Compute sector count seen by int13
u32 lba = (u32)(nlc - 1) * (u32)nlh * (u32)nlspt;
u16 size = GET_INT13DPT(regs, size);
// Buffer is too small
- if (size < 0x1a) {
+ if (size < 26) {
disk_ret(regs, DISK_RET_EPARAM);
return;
}
// EDD 1.x
- u8 type = GET_EBDA(ata.devices[device].type);
- u16 npc = GET_EBDA(ata.devices[device].pchs.cylinders);
- u16 nph = GET_EBDA(ata.devices[device].pchs.heads);
- u16 npspt = GET_EBDA(ata.devices[device].pchs.spt);
- u64 lba = GET_EBDA(ata.devices[device].sectors);
- u16 blksize = GET_EBDA(ata.devices[device].blksize);
+ u8 type = GET_GLOBAL(ATA.devices[device].type);
+ u16 npc = GET_GLOBAL(ATA.devices[device].pchs.cylinders);
+ u16 nph = GET_GLOBAL(ATA.devices[device].pchs.heads);
+ u16 npspt = GET_GLOBAL(ATA.devices[device].pchs.spt);
+ u64 lba = GET_GLOBAL(ATA.devices[device].sectors);
+ u16 blksize = GET_GLOBAL(ATA.devices[device].blksize);
+
+ dprintf(DEBUG_HDL_13, "disk_1348 size=%d t=%d chs=%d,%d,%d lba=%d bs=%d\n"
+ , size, type, npc, nph, npspt, (u32)lba, blksize);
- SET_INT13DPT(regs, size, 0x1a);
+ SET_INT13DPT(regs, size, 26);
if (type == ATA_TYPE_ATA) {
if (lba > (u64)npspt*nph*0x3fff) {
SET_INT13DPT(regs, infos, 0x00); // geometry is invalid
}
SET_INT13DPT(regs, blksize, blksize);
- if (size < 0x1e) {
+ if (size < 30) {
disk_ret(regs, DISK_RET_SUCCESS);
return;
}
// EDD 2.x
- SET_INT13DPT(regs, size, 0x1e);
+ u16 ebda_seg = get_ebda_seg();
+ SET_INT13DPT(regs, size, 30);
- SET_INT13DPT(regs, dpte_segment, SEG_EBDA);
+ SET_INT13DPT(regs, dpte_segment, ebda_seg);
SET_INT13DPT(regs, dpte_offset
- , offsetof(struct extended_bios_data_area_s, ata.dpte));
+ , offsetof(struct extended_bios_data_area_s, dpte));
// Fill in dpte
u8 channel = device / 2;
- u16 iobase1 = GET_EBDA(ata.channels[channel].iobase1);
- u16 iobase2 = GET_EBDA(ata.channels[channel].iobase2);
- u8 irq = GET_EBDA(ata.channels[channel].irq);
- u8 mode = GET_EBDA(ata.devices[device].mode);
+ u8 slave = device % 2;
+ u16 iobase1 = GET_GLOBAL(ATA.channels[channel].iobase1);
+ u16 iobase2 = GET_GLOBAL(ATA.channels[channel].iobase2);
+ u8 irq = GET_GLOBAL(ATA.channels[channel].irq);
+ u8 mode = GET_GLOBAL(ATA.devices[device].mode);
- u16 options;
+ u16 options = 0;
if (type == ATA_TYPE_ATA) {
- u8 translation = GET_EBDA(ata.devices[device].translation);
- options = (translation==ATA_TRANSLATION_NONE?0:1)<<3; // chs translation
- options |= (translation==ATA_TRANSLATION_LBA?1:0)<<9;
- options |= (translation==ATA_TRANSLATION_RECHS?3:0)<<9;
+ u8 translation = GET_GLOBAL(ATA.devices[device].translation);
+ if (translation != ATA_TRANSLATION_NONE) {
+ options |= 1<<3; // CHS translation
+ if (translation == ATA_TRANSLATION_LBA)
+ options |= 1<<9;
+ if (translation == ATA_TRANSLATION_RECHS)
+ options |= 3<<9;
+ }
} else {
// ATAPI
- options = (1<<5); // removable device
- options |= (1<<6); // atapi device
+ options |= 1<<5; // removable device
+ options |= 1<<6; // atapi device
}
- options |= (1<<4); // lba translation
- options |= (mode==ATA_MODE_PIO32?1:0)<<7;
-
- SET_EBDA(ata.dpte.iobase1, iobase1);
- SET_EBDA(ata.dpte.iobase2, iobase2 + ATA_CB_DC);
- SET_EBDA(ata.dpte.prefix, (0xe | (device % 2))<<4 );
- SET_EBDA(ata.dpte.unused, 0xcb );
- SET_EBDA(ata.dpte.irq, irq );
- SET_EBDA(ata.dpte.blkcount, 1 );
- SET_EBDA(ata.dpte.dma, 0 );
- SET_EBDA(ata.dpte.pio, 0 );
- SET_EBDA(ata.dpte.options, options);
- SET_EBDA(ata.dpte.reserved, 0);
- if (size >= 0x42)
- SET_EBDA(ata.dpte.revision, 0x11);
- else
- SET_EBDA(ata.dpte.revision, 0x10);
-
- u8 *p = MAKE_FARPTR(SEG_EBDA
- , offsetof(struct extended_bios_data_area_s, ata.dpte));
- u8 sum = checksum(p, 15);
- SET_EBDA(ata.dpte.checksum, ~sum);
-
- if (size < 0x42) {
+ options |= 1<<4; // lba translation
+ if (mode == ATA_MODE_PIO32)
+ options |= 1<<7;
+
+ SET_EBDA2(ebda_seg, dpte.iobase1, iobase1);
+ SET_EBDA2(ebda_seg, dpte.iobase2, iobase2 + ATA_CB_DC);
+ SET_EBDA2(ebda_seg, dpte.prefix, ((slave ? ATA_CB_DH_DEV1 : ATA_CB_DH_DEV0)
+ | ATA_CB_DH_LBA));
+ SET_EBDA2(ebda_seg, dpte.unused, 0xcb);
+ SET_EBDA2(ebda_seg, dpte.irq, irq);
+ SET_EBDA2(ebda_seg, dpte.blkcount, 1);
+ SET_EBDA2(ebda_seg, dpte.dma, 0);
+ SET_EBDA2(ebda_seg, dpte.pio, 0);
+ SET_EBDA2(ebda_seg, dpte.options, options);
+ SET_EBDA2(ebda_seg, dpte.reserved, 0);
+ SET_EBDA2(ebda_seg, dpte.revision, 0x11);
+
+ u8 *p = MAKE_FARPTR(ebda_seg
+ , offsetof(struct extended_bios_data_area_s, dpte));
+ SET_EBDA2(ebda_seg, dpte.checksum, -checksum(p, 15));
+
+ if (size < 66) {
disk_ret(regs, DISK_RET_SUCCESS);
return;
}
// EDD 3.x
- channel = device / 2;
- u8 iface = GET_EBDA(ata.channels[channel].iface);
- iobase1 = GET_EBDA(ata.channels[channel].iobase1);
-
- SET_INT13DPT(regs, size, 0x42);
SET_INT13DPT(regs, key, 0xbedd);
- SET_INT13DPT(regs, dpi_length, 0x24);
+ SET_INT13DPT(regs, dpi_length, 36);
SET_INT13DPT(regs, reserved1, 0);
SET_INT13DPT(regs, reserved2, 0);
- if (iface==ATA_IFACE_ISA) {
- SET_INT13DPT(regs, host_bus[0], 'I');
- SET_INT13DPT(regs, host_bus[1], 'S');
- SET_INT13DPT(regs, host_bus[2], 'A');
- SET_INT13DPT(regs, host_bus[3], 0);
- } else {
- // FIXME PCI
- }
+ SET_INT13DPT(regs, host_bus[0], 'P');
+ SET_INT13DPT(regs, host_bus[1], 'C');
+ SET_INT13DPT(regs, host_bus[2], 'I');
+ SET_INT13DPT(regs, host_bus[3], 0);
+
+ u32 bdf = GET_GLOBAL(ATA.channels[channel].pci_bdf);
+ u32 path = (pci_bdf_to_bus(bdf) | (pci_bdf_to_dev(bdf) << 8)
+ | (pci_bdf_to_fn(bdf) << 16));
+ SET_INT13DPT(regs, iface_path, path);
+
SET_INT13DPT(regs, iface_type[0], 'A');
SET_INT13DPT(regs, iface_type[1], 'T');
SET_INT13DPT(regs, iface_type[2], 'A');
SET_INT13DPT(regs, iface_type[3], 0);
+ SET_INT13DPT(regs, iface_type[4], 0);
+ SET_INT13DPT(regs, iface_type[5], 0);
+ SET_INT13DPT(regs, iface_type[6], 0);
+ SET_INT13DPT(regs, iface_type[7], 0);
- if (iface==ATA_IFACE_ISA) {
- SET_INT13DPT(regs, iface_path[0], iobase1);
- SET_INT13DPT(regs, iface_path[2], 0);
- SET_INT13DPT(regs, iface_path[4], 0L);
- } else {
- // FIXME PCI
- }
- SET_INT13DPT(regs, device_path[0], device%2);
- SET_INT13DPT(regs, device_path[1], 0);
- SET_INT13DPT(regs, device_path[2], 0);
- SET_INT13DPT(regs, device_path[4], 0L);
+ SET_INT13DPT(regs, device_path, slave);
+
+ SET_INT13DPT(regs, checksum, -checksum(MAKE_FARPTR(regs->ds, 30), 35));
- sum = checksum(MAKE_FARPTR(regs->ds, 30), 34);
- SET_INT13DPT(regs, checksum, ~sum);
+ disk_ret(regs, DISK_RET_SUCCESS);
}
// IBM/MS extended media change
}
// Get the ata channel
- u8 device = GET_EBDA(ata.idmap[iscd][drive]);
+ u8 device = GET_GLOBAL(ATA.idmap[iscd][drive]);
// basic check : device has to be valid
if (device >= CONFIG_MAX_ATA_DEVICES) {
void VISIBLE16
handle_40(struct bregs *regs)
{
- debug_enter(regs);
+ debug_enter(regs, DEBUG_HDL_40);
handle_legacy_disk(regs, regs->dl);
}
void VISIBLE16
handle_13(struct bregs *regs)
{
- //debug_enter(regs);
+ debug_enter(regs, DEBUG_HDL_13);
u8 drive = regs->dl;
if (CONFIG_CDROM_EMU) {
cdemu_134b(regs);
return;
}
- if (GET_EBDA(cdemu.active)) {
- if (drive == GET_EBDA(cdemu.emulated_drive)) {
+ u16 ebda_seg = get_ebda_seg();
+ if (GET_EBDA2(ebda_seg, cdemu.active)) {
+ if (drive == GET_EBDA2(ebda_seg, cdemu.emulated_drive)) {
cdemu_13(regs);
return;
}
void VISIBLE16
handle_76()
{
- debug_isr();
+ debug_isr(DEBUG_ISR_76);
SET_BDA(disk_interrupt_flag, 0xff);
- eoi_both_pics();
+ eoi_pic2();
}
projects / seabios.git / blobdiff