os-k-team/os-k
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Merge branch 'disk'

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This commit is contained in:
Adrien Bourmault 2021-02-22 15:44:29 +01:00
commit 494e85e6dc
Signed by: neox
GPG Key ID: 6EB408FE0ACEC664
4 changed files with 124 additions and 8 deletions
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14
Makefile
View File

@ -318,21 +318,21 @@ test: all installonimage
run: test
testnokvm: all installonimage
@qemu-system-x86_64 -vga std -cpu $(cpu) -soundhw pcspk -s \
@qemu-system-x86_64 -vga std -cpu $(cpu) -machine type=q35 -soundhw pcspk -s \
-rtc base=localtime -m $(ram) -hda $(installdisk) \
-d cpu_reset,guest_errors,pcall,int 2> $(BUILDDIR)/qemu.log &
testnosnd: all installonimage
@qemu-system-x86_64 -vga std -enable-kvm -cpu host -s \
@qemu-system-x86_64 -vga std -enable-kvm -machine type=q35 -cpu host -s \
-rtc base=localtime -m $(ram) -hda $(installdisk) \
-d cpu_reset,guest_errors,pcall,int 2> $(BUILDDIR)/qemu.log &
test32: all installonimage
@qemu-system-i386 -m $(ram) -hda $(installdisk) -d \
@qemu-system-i386 -m $(ram) -hda $(installdisk) -machine type=q35 -d \
cpu_reset,guest_errors,pcall,int 2> $(BUILDDIR)/qemu.log &
gdb: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -enable-kvm -rtc base=localtime \
@setsid qemu-system-x86_64 -m $(ram) -enable-kvm -machine type=q35 -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@gdb \
@ -342,13 +342,13 @@ gdb: all installonimage
-ex "break BtStartKern" \
ddd: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -enable-kvm -rtc base=localtime \
@setsid qemu-system-x86_64 -m $(ram) -enable-kvm -machine type=q35 -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@ddd -n
gdbnokvm: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -rtc base=localtime \
@setsid qemu-system-x86_64 -m $(ram) -machine type=q35 -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@gdb \
@ -358,7 +358,7 @@ gdbnokvm: all installonimage
-ex "break BtStartKern" \
dddnokvm: all installonimage
@setsid qemu-system-x86_64 -m $(ram) -rtc base=localtime \
@setsid qemu-system-x86_64 -m $(ram) -machine type=q35 -rtc base=localtime \
-hda $(installdisk) -no-reboot -no-shutdown -d \
cpu_reset,guest_errors,pcall,int -s -S 2> $(BUILDDIR)/qemu.log &
@ddd -n

90
include/drivers/ata.h
View File

@ -33,6 +33,96 @@
//----------------------------------------------------------------------------//
#define MASS_STORAGE_CLASS 0x1
#define SERIAL_ATA_SUBCLASS 0x6
enum
{
REG_H2D = 0x27, // Register FIS - host to device
REG_D2H = 0x34, // Register FIS - device to host
DMA_ACT = 0x39, // DMA activate FIS - device to host
DMA_SETUP = 0x41, // DMA setup FIS - bidirectional
DATA = 0x46, // Data FIS - bidirectional
BIST = 0x58, // BIST activate FIS - bidirectional
PIO_SETUP = 0x5F, // PIO setup FIS - device to host
DEV_BITS = 0xA1 // Set device bits FIS - device to host
};
enum
{
IDENTIFY = 0xEC // CMD IDENTIFY
};
struct HostToDeviceFIS
{
// DWORD 0
uchar type; // REG_H2D
uchar pmport:4; // Port multiplier
uchar reserved0:3; // Reserved
uchar c:1; // 1: Command, 0: Control
uchar command; // Command register
uchar featurel; // Feature register, 7:0
// DWORD 1
uchar lba0; // LBA low register, 7:0
uchar lba1; // LBA mid register, 15:8
uchar lba2; // LBA high register, 23:16
uchar device; // Device register
// DWORD 2
uchar lba3; // LBA register, 31:24
uchar lba4; // LBA register, 39:32
uchar lba5; // LBA register, 47:40
uchar featureh; // Feature register, 15:8
// DWORD 3
uchar countl; // Count register, 7:0
uchar counth; // Count register, 15:8
uchar icc; // Isochronous command completion
uchar control; // Control register
// DWORD 4
uchar reserved1[4]; // Reserved
};
struct DMASetupFIS
{
// DWORD 0
uchar type; // DMA_SETUP
uchar pmport:4; // Port multiplier
uchar reserved0:1; // Reserved
uchar d:1; // Data transfer direction, 1 - device to host
uchar i:1; // Interrupt bit
uchar a:1; // Auto-activate. Specifies if DMA Activate FIS
// is needed
uchar reserved1[2]; // Reserved
//DWORD 1&2
ulong DMAbufferID; // DMA Buffer Identifier.
// Used to Identify DMA buffer in host memory.
// SATA Spec says host specific and not in Spec.
// Trying AHCI spec might work.
//DWORD 3
uint reserved2; // More reserved
//DWORD 4
uint DMAbufOffset; // Byte offset into buffer. First 2 bits must be 0
//DWORD 5
uint TransferCount; // Number of bytes to transfer. Bit 0 must be 0
//DWORD 6
uint reserved3; // Reserved
};
//----------------------------------------------------------------------------//
void IoDetectATA(void);
void IoReadATA(void *sectorBuffer, char n, char first);
void IoDumpSector(void);

23
kaleid/drivers/ata.c
View File

@ -24,6 +24,7 @@
#include <drivers/ata.h>
#include <io/vga.h>
#include <io/pci.h>
void IoDumpFirstSector(void)
{
@ -41,3 +42,25 @@ void IoDumpFirstSector(void)
KernLog("\n\n");
}
void IoDetectATA(void)
{
PciDev_t *ataDevice = IoPciGetDeviceByClass(MASS_STORAGE_CLASS,
SERIAL_ATA_SUBCLASS);
if(!ataDevice) {
return;
}
DebugLog("AHCI controller found at PCI config addr = %p\n",
ataDevice->configAddr);
struct HostToDeviceFIS fis;
memset(&fis, 0, sizeof(struct HostToDeviceFIS));
fis.type = REG_H2D;
fis.command = IDENTIFY;
fis.device = 0; // Master
fis.c = 1; // This is a command
}

5
kaleid/kernel/init/init.c
View File

@ -38,7 +38,7 @@
#include <io/pci.h>
#include <po/shtdwn.h>
#include <init/boot.h>
#include <drivers/ata.h>
//
// Entry point of the Kaleid kernel
//
@ -88,6 +88,9 @@ noreturn void BtStartKern(multiboot_info_t *mbInfo, uint mbMagic, void *codeSeg)
// PCI express
IoInitPCI();
// Drivers
IoDetectATA();
// Scheduler
PsInitSched();