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https://gitlab.os-k.eu/os-k-team/os-k.git
synced 2023-08-25 14:03:10 +02:00
Update with pci
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commit
b21c07a8e2
@ -70,7 +70,7 @@ struct SDTHeader_t {
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uint creatorID;
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uint creatorRevision;
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uint sdtEntry;
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};
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} __attribute__ ((packed));
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//
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// GAS type, used by ACPI tables to inform about registers
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@ -82,7 +82,7 @@ struct GenericAddressStructure
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uchar offset;
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uchar accessSize;
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ulong address;
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};
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} __attribute__ ((packed));
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//
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// ACPI table types id
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@ -192,7 +192,7 @@ struct FADT_t
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struct GenericAddressStructure xPMTimerBlock;
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struct GenericAddressStructure xGPE0Block;
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struct GenericAddressStructure xGPE1Block;
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};
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} __attribute__ ((packed));
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//----------------------------------------------------------------------------//
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@ -59,6 +59,7 @@ typedef struct ISRFrame_t ISRFrame_t;
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typedef struct RSDPDescriptor_t RSDPDescriptor_t;
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typedef struct SDTHeader_t SDTHeader_t;
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typedef struct FADT_t FADT_t;
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typedef struct MCFG_t MCFG_t;
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typedef struct MemoryMap_t MemoryMap_t;
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typedef struct MapEntry_t MapEntry_t;
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@ -35,10 +35,14 @@
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#include <io/keyb.h>
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#include <io/cursor.h>
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#include <io/acpi.h>
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#include <io/pci.h>
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#include <po/shtdwn.h>
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#include <init/boot.h>
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<<<<<<< HEAD
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#include <io/pci.h>
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#include <drivers/rtl8139.h>
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=======
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>>>>>>> master
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//
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// Entry point of the Kaleid kernel
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@ -86,7 +90,7 @@ noreturn void BtStartKern(multiboot_info_t *mbInfo, uint mbMagic, void *codeSeg)
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// ACPI
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IoInitAcpi();
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// PCI
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// PCI express
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IoInitPCI();
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// Network
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@ -169,16 +169,14 @@ static inline void IoInitRXSDT(void)
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KeStartPanic("Invalid RSDT checksum : %d vs 0", checksum);
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if (IoACPIVersion == 1) {
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DebugLog("ACPI Root System Table %s (%s) length %d [%p]\n",
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DebugLog("ACPI Root System Table %s length %d [%p]\n",
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rxsdt->signature,
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rxsdt->OEMID,
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rxsdt->length,
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rxsdt
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);
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} else {
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DebugLog("ACPI Extended System Table %s (%s) length %d [%p]\n",
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DebugLog("ACPI Extended System Table %s length %d [%p]\n",
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rxsdt->signature,
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rxsdt->OEMID,
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rxsdt->length,
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rxsdt
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);
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@ -222,9 +220,8 @@ static inline void IoSearchAcpiTables(void)
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if (!checksum) {
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for (ulong i=0; i < N_SDT_TYPES; i++) {
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if (!strncmp(table->signature, SDTChar[i], 4)) {
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DebugLog("ACPI System Table %s (OEM %s) length %d [%p]\n",
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DebugLog("ACPI System Table %s length %d [%p]\n",
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SDTChar[i],
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table->OEMID,
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table->length,
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table
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);
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@ -248,9 +245,8 @@ static inline void IoSearchAcpiTables(void)
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checksum = DoChecksum(dsdt, (size_t)dsdt->length, 0, 0);
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if (!checksum) {
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if (!strncmp(dsdt->signature, SDTChar[SDT_DSDT], 4)) {
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DebugLog("ACPI System Table %s (OEM %s) length %d [%p]\n",
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DebugLog("ACPI System Table %s length %d [%p]\n",
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SDTChar[SDT_DSDT],
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dsdt->OEMID,
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dsdt->length,
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dsdt
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);
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@ -22,27 +22,27 @@
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
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#include <io/pci.h>
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#include <io/acpi.h>
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#include <mm/paging.h>
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void* pciConfigBaseAddress = NULL;
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static void *pciConfigBaseAddress = NULL;
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// -------------------------------------------------------------------------- //
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static inline void* pciGetConfigAddr(uchar bus, uchar device,
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uchar function, ushort offset)
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{
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if(device > 32) {
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KernLog("pciGetConfigAddr(): bad device ID\n");
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DebugLog("pciGetConfigAddr(): bad device ID\n");
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return 0;
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}
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if(function > 8) {
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KernLog("pciGetConfigAddr(): bad function ID\n");
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DebugLog("pciGetConfigAddr(): bad function ID\n");
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return 0;
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}
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if(offset > 4096) {
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KernLog("pciGetConfigAddr(): bad register offset\n");
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DebugLog("pciGetConfigAddr(): bad register offset\n");
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return 0;
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}
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@ -68,7 +68,6 @@ static inline uint pciReadConfigDWord(uchar bus, uchar device,
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return *((uint*)(pciGetConfigAddr(bus, device, function, offset)));
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}
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//----------------------------------------------------------------------------//
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uchar IoPciReadConfigByte(PciDev_t *device, ushort offset)
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@ -104,12 +103,10 @@ void IoPciWriteConfigDWord(PciDev_t *device, ushort offset, uint data)
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memmove((void *)((ulong)device->configAddr + offset), &data, 4);
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}
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void IoPciEnumerate()
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{
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if(pciConfigBaseAddress == NULL) {
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KernLog("Unable to access PCI configuration : MCFG table not reachable\n");
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KeStartPanic("Unable to access PCI configuration : MCFG table not reachable\n");
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return;
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}
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@ -118,7 +115,7 @@ void IoPciEnumerate()
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for(uchar function = 0; function < 8; function++) {
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ushort vendor = pciReadConfigWord((uchar)bus, device, function, PCI_REG_VENDOR);
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if(vendor == 0xffff) continue;
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DebugLog("PCI device found ! vendor: %x, device: %x\n",
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DebugLog("PCI device vendor: %x, device: %x\n",
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vendor,
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pciReadConfigWord((uchar)bus, device, function, PCI_REG_DEVICE)
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);
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@ -130,7 +127,7 @@ void IoPciEnumerate()
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PciDev_t *IoPciGetDevice(ushort vendorID, ushort deviceID)
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{
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if(pciConfigBaseAddress == NULL) {
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KernLog("Unable to access PCI configuration : MCFG table not reachable\n");
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KeStartPanic("Unable to access PCI configuration : MCFG table not reachable\n");
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return NULL;
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}
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@ -153,9 +150,9 @@ PciDev_t *IoPciGetDevice(ushort vendorID, ushort deviceID)
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void IoInitPCI()
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{
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struct MCFG_t *MCFG_table = (struct MCFG_t*)IoGetAcpiTable(SDT_MCFG);
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MCFG_t *MCFG_table = (MCFG_t*)IoGetAcpiTable(SDT_MCFG);
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if(MCFG_table == NULL) {
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KernLog("Unable to access PCI configuration : MCFG table not reachable\n");
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KeStartPanic("Unable to access PCI configuration : MCFG table not reachable\n");
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}
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pciConfigBaseAddress = MCFG_table->pciConfigBaseAddress;
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DebugLog("PCI Config Base address = 0x%p\n", pciConfigBaseAddress);
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@ -165,11 +162,8 @@ void IoInitPCI()
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// Give R/W access to the configuration space
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for(int i=0; i < 65536; i++) // 65536 = 256 * 32 * 8
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{
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// 4096 for page size TODO: use of KPAGESIZE
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MmMapPage((void *)((ulong)pciConfigBaseAddress + i * 4096),
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(void *)((ulong)pciConfigBaseAddress + i * 4096), PRESENT | READWRITE);
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MmMapPage((void *)((ulong)pciConfigBaseAddress + i * KPAGESIZE),
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(void *)((ulong)pciConfigBaseAddress + i * KPAGESIZE),
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PRESENT | READWRITE);
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}
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}
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