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banan-os
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update main #1

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Sinipelto merged 240 commits from Bananymous/banan-os:main into main 2023-11-20 13:20:51 +02:00
Conversation 0 Commits 240 Files Changed 263 +32 -12
2 changed files with 32 additions and 12 deletions
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Showing only changes of commit 1b9e14a53b - Show all commits

9
kernel/include/kernel/PCI.h
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@ -92,10 +92,13 @@ namespace Kernel::PCI
private:
void enumerate_capabilites();
void set_command_bits(uint16_t mask);
void unset_command_bits(uint16_t mask);
private:
uint8_t m_bus;
uint8_t m_dev;
uint8_t m_func;
const uint8_t m_bus;
const uint8_t m_dev;
const uint8_t m_func;
uint8_t m_class_code;
uint8_t m_subclass;

35
kernel/kernel/PCI.cpp
View File

@ -6,12 +6,20 @@
#include <kernel/Storage/ATA/AHCI/Controller.h>
#include <kernel/Storage/ATA/ATAController.h>
#include <lai/helpers/pci.h>
#define INVALID_VENDOR 0xFFFF
#define MULTI_FUNCTION 0x80
#define CONFIG_ADDRESS 0xCF8
#define CONFIG_DATA 0xCFC
#define PCI_REG_COMMAND 0x04
#define PCI_CMD_IO_SPACE (1 << 0)
#define PCI_CMD_MEM_SPACE (1 << 1)
#define PCI_CMD_BUS_MASTER (1 << 2)
#define PCI_CMD_INTERRUPT_DISABLE (1 << 10)
#define DEBUG_PCI 1
namespace Kernel::PCI
@ -378,45 +386,54 @@ namespace Kernel::PCI
}
}
void PCI::Device::set_command_bits(uint16_t mask)
{
write_dword(PCI_REG_COMMAND, read_dword(PCI_REG_COMMAND) | mask);
}
void PCI::Device::unset_command_bits(uint16_t mask)
{
write_dword(PCI_REG_COMMAND, read_dword(PCI_REG_COMMAND) & ~mask);
}
void PCI::Device::enable_bus_mastering()
{
write_dword(0x04, read_dword(0x04) | 1u << 2);
set_command_bits(PCI_CMD_BUS_MASTER);
}
void PCI::Device::disable_bus_mastering()
{
write_dword(0x04, read_dword(0x04) & ~(1u << 2));
unset_command_bits(PCI_CMD_BUS_MASTER);
}
void PCI::Device::enable_memory_space()
{
write_dword(0x04, read_dword(0x04) | 1u << 1);
set_command_bits(PCI_CMD_MEM_SPACE);
}
void PCI::Device::disable_memory_space()
{
write_dword(0x04, read_dword(0x04) & ~(1u << 1));
unset_command_bits(PCI_CMD_MEM_SPACE);
}
void PCI::Device::enable_io_space()
{
write_dword(0x04, read_dword(0x04) | 1u << 0);
set_command_bits(PCI_CMD_IO_SPACE);
}
void PCI::Device::disable_io_space()
{
write_dword(0x04, read_dword(0x04) & ~(1u << 0));
unset_command_bits(PCI_CMD_IO_SPACE);
}
void PCI::Device::enable_pin_interrupts()
{
write_dword(0x04, read_dword(0x04) | 1u << 10);
unset_command_bits(PCI_CMD_INTERRUPT_DISABLE);
}
void PCI::Device::disable_pin_interrupts()
{
write_dword(0x04, read_dword(0x04) & ~(1u << 10));
set_command_bits(PCI_CMD_INTERRUPT_DISABLE);
}
}