mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-11 09:18:05 +03:00
aacb1f0bf4
Now that the old PCI::Device was removed, we can complete the PCI changes by making the PCI::DeviceController to be named PCI::Device. Really the entire purpose and the distinction between the two was about interrupts, but since this is no longer a problem, just rename it to simplify things further.
282 lines
7.7 KiB
C++
282 lines
7.7 KiB
C++
/*
|
|
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Function.h>
|
|
#include <AK/String.h>
|
|
#include <AK/Types.h>
|
|
#include <AK/Vector.h>
|
|
#include <Kernel/Debug.h>
|
|
|
|
namespace Kernel {
|
|
|
|
#define PCI_VENDOR_ID 0x00 // word
|
|
#define PCI_DEVICE_ID 0x02 // word
|
|
#define PCI_COMMAND 0x04 // word
|
|
#define PCI_STATUS 0x06 // word
|
|
#define PCI_REVISION_ID 0x08 // byte
|
|
#define PCI_PROG_IF 0x09 // byte
|
|
#define PCI_SUBCLASS 0x0a // byte
|
|
#define PCI_CLASS 0x0b // byte
|
|
#define PCI_CACHE_LINE_SIZE 0x0c // byte
|
|
#define PCI_LATENCY_TIMER 0x0d // byte
|
|
#define PCI_HEADER_TYPE 0x0e // byte
|
|
#define PCI_BIST 0x0f // byte
|
|
#define PCI_BAR0 0x10 // u32
|
|
#define PCI_BAR1 0x14 // u32
|
|
#define PCI_BAR2 0x18 // u32
|
|
#define PCI_BAR3 0x1C // u32
|
|
#define PCI_BAR4 0x20 // u32
|
|
#define PCI_BAR5 0x24 // u32
|
|
#define PCI_SUBSYSTEM_ID 0x2C // u16
|
|
#define PCI_SUBSYSTEM_VENDOR_ID 0x2E // u16
|
|
#define PCI_CAPABILITIES_POINTER 0x34 // u8
|
|
#define PCI_INTERRUPT_LINE 0x3C // byte
|
|
#define PCI_SECONDARY_BUS 0x19 // byte
|
|
#define PCI_HEADER_TYPE_DEVICE 0
|
|
#define PCI_HEADER_TYPE_BRIDGE 1
|
|
#define PCI_TYPE_BRIDGE 0x0604
|
|
#define PCI_ADDRESS_PORT 0xCF8
|
|
#define PCI_VALUE_PORT 0xCFC
|
|
#define PCI_NONE 0xFFFF
|
|
#define PCI_MAX_DEVICES_PER_BUS 32
|
|
#define PCI_MAX_BUSES 256
|
|
#define PCI_MAX_FUNCTIONS_PER_DEVICE 8
|
|
|
|
#define PCI_CAPABILITY_NULL 0x0
|
|
#define PCI_CAPABILITY_MSI 0x5
|
|
#define PCI_CAPABILITY_VENDOR_SPECIFIC 0x9
|
|
#define PCI_CAPABILITY_MSIX 0x11
|
|
|
|
// Taken from https://pcisig.com/sites/default/files/files/PCI_Code-ID_r_1_11__v24_Jan_2019.pdf
|
|
#define PCI_MASS_STORAGE_CLASS_ID 0x1
|
|
#define PCI_IDE_CTRL_SUBCLASS_ID 0x1
|
|
#define PCI_SATA_CTRL_SUBCLASS_ID 0x6
|
|
#define PCI_AHCI_IF_PROGIF 0x1
|
|
|
|
namespace PCI {
|
|
struct ID {
|
|
u16 vendor_id { 0 };
|
|
u16 device_id { 0 };
|
|
|
|
bool is_null() const { return !vendor_id && !device_id; }
|
|
|
|
bool operator==(const ID& other) const
|
|
{
|
|
return vendor_id == other.vendor_id && device_id == other.device_id;
|
|
}
|
|
bool operator!=(const ID& other) const
|
|
{
|
|
return vendor_id != other.vendor_id || device_id != other.device_id;
|
|
}
|
|
};
|
|
|
|
struct Address {
|
|
public:
|
|
Address() = default;
|
|
Address(u16 seg)
|
|
: m_seg(seg)
|
|
, m_bus(0)
|
|
, m_device(0)
|
|
, m_function(0)
|
|
{
|
|
}
|
|
Address(u16 seg, u8 bus, u8 device, u8 function)
|
|
: m_seg(seg)
|
|
, m_bus(bus)
|
|
, m_device(device)
|
|
, m_function(function)
|
|
{
|
|
}
|
|
|
|
Address(const Address& address)
|
|
: m_seg(address.seg())
|
|
, m_bus(address.bus())
|
|
, m_device(address.device())
|
|
, m_function(address.function())
|
|
{
|
|
}
|
|
|
|
bool is_null() const { return !m_bus && !m_device && !m_function; }
|
|
operator bool() const { return !is_null(); }
|
|
|
|
// Disable default implementations that would use surprising integer promotion.
|
|
bool operator<=(const Address&) const = delete;
|
|
bool operator>=(const Address&) const = delete;
|
|
bool operator<(const Address&) const = delete;
|
|
bool operator>(const Address&) const = delete;
|
|
|
|
bool operator==(const Address& other) const
|
|
{
|
|
if (this == &other)
|
|
return true;
|
|
return m_seg == other.m_seg && m_bus == other.m_bus && m_device == other.m_device && m_function == other.m_function;
|
|
}
|
|
bool operator!=(const Address& other) const
|
|
{
|
|
return !(*this == other);
|
|
}
|
|
|
|
u16 seg() const { return m_seg; }
|
|
u8 bus() const { return m_bus; }
|
|
u8 device() const { return m_device; }
|
|
u8 function() const { return m_function; }
|
|
|
|
u32 io_address_for_field(u8 field) const
|
|
{
|
|
return 0x80000000u | (m_bus << 16u) | (m_device << 11u) | (m_function << 8u) | (field & 0xfc);
|
|
}
|
|
|
|
protected:
|
|
u32 m_seg { 0 };
|
|
u8 m_bus { 0 };
|
|
u8 m_device { 0 };
|
|
u8 m_function { 0 };
|
|
};
|
|
|
|
struct ChangeableAddress : public Address {
|
|
ChangeableAddress()
|
|
: Address(0)
|
|
{
|
|
}
|
|
explicit ChangeableAddress(u16 seg)
|
|
: Address(seg)
|
|
{
|
|
}
|
|
ChangeableAddress(u16 seg, u8 bus, u8 device, u8 function)
|
|
: Address(seg, bus, device, function)
|
|
{
|
|
}
|
|
void set_seg(u16 seg) { m_seg = seg; }
|
|
void set_bus(u8 bus) { m_bus = bus; }
|
|
void set_device(u8 device) { m_device = device; }
|
|
void set_function(u8 function) { m_function = function; }
|
|
bool operator==(const Address& address)
|
|
{
|
|
if (m_seg == address.seg() && m_bus == address.bus() && m_device == address.device() && m_function == address.function())
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
const ChangeableAddress& operator=(const Address& address)
|
|
{
|
|
set_seg(address.seg());
|
|
set_bus(address.bus());
|
|
set_device(address.device());
|
|
set_function(address.function());
|
|
return *this;
|
|
}
|
|
};
|
|
|
|
class Capability {
|
|
public:
|
|
Capability(const Address& address, u8 id, u8 ptr)
|
|
: m_address(address)
|
|
, m_id(id)
|
|
, m_ptr(ptr)
|
|
{
|
|
}
|
|
|
|
u8 id() const { return m_id; }
|
|
|
|
u8 read8(u32) const;
|
|
u16 read16(u32) const;
|
|
u32 read32(u32) const;
|
|
void write8(u32, u8);
|
|
void write16(u32, u16);
|
|
void write32(u32, u32);
|
|
|
|
private:
|
|
Address m_address;
|
|
const u8 m_id;
|
|
const u8 m_ptr;
|
|
};
|
|
|
|
class PhysicalID {
|
|
public:
|
|
PhysicalID(Address address, ID id, Vector<Capability> capabilities)
|
|
: m_address(address)
|
|
, m_id(id)
|
|
, m_capabilities(capabilities)
|
|
{
|
|
if constexpr (PCI_DEBUG) {
|
|
for (const auto& capability : capabilities)
|
|
dbgln("{} has capability {}", address, capability.id());
|
|
}
|
|
}
|
|
|
|
Vector<Capability> capabilities() const { return m_capabilities; }
|
|
const ID& id() const { return m_id; }
|
|
const Address& address() const { return m_address; }
|
|
|
|
private:
|
|
Address m_address;
|
|
ID m_id;
|
|
Vector<Capability> m_capabilities;
|
|
};
|
|
|
|
ID get_id(PCI::Address);
|
|
bool is_io_space_enabled(Address);
|
|
void enumerate(Function<void(Address, ID)> callback);
|
|
void enable_interrupt_line(Address);
|
|
void disable_interrupt_line(Address);
|
|
u8 get_interrupt_line(Address);
|
|
void raw_access(Address, u32, size_t, u32);
|
|
u32 get_BAR0(Address);
|
|
u32 get_BAR1(Address);
|
|
u32 get_BAR2(Address);
|
|
u32 get_BAR3(Address);
|
|
u32 get_BAR4(Address);
|
|
u32 get_BAR5(Address);
|
|
u32 get_BAR(Address address, u8 bar);
|
|
u8 get_revision_id(Address);
|
|
u8 get_programming_interface(Address);
|
|
u8 get_subclass(Address);
|
|
u8 get_class(Address);
|
|
u16 get_subsystem_id(Address);
|
|
u16 get_subsystem_vendor_id(Address);
|
|
size_t get_BAR_space_size(Address, u8);
|
|
Optional<u8> get_capabilities_pointer(Address);
|
|
Vector<Capability> get_capabilities(Address);
|
|
void enable_bus_mastering(Address);
|
|
void disable_bus_mastering(Address);
|
|
void enable_io_space(Address);
|
|
void disable_io_space(Address);
|
|
void enable_memory_space(Address);
|
|
void disable_memory_space(Address);
|
|
PhysicalID get_physical_id(Address address);
|
|
|
|
class Access;
|
|
class MMIOAccess;
|
|
class WindowedMMIOAccess;
|
|
class IOAccess;
|
|
class MMIOSegment;
|
|
class Device;
|
|
}
|
|
|
|
}
|
|
|
|
template<>
|
|
struct AK::Formatter<Kernel::PCI::Address> : Formatter<FormatString> {
|
|
void format(FormatBuilder& builder, Kernel::PCI::Address value)
|
|
{
|
|
return Formatter<FormatString>::format(
|
|
builder,
|
|
"PCI [{:04x}:{:02x}:{:02x}:{:02x}]", value.seg(), value.bus(), value.device(), value.function());
|
|
}
|
|
};
|
|
|
|
template<>
|
|
struct AK::Formatter<Kernel::PCI::ID> : Formatter<FormatString> {
|
|
void format(FormatBuilder& builder, Kernel::PCI::ID value)
|
|
{
|
|
return Formatter<FormatString>::format(
|
|
builder,
|
|
"PCI::ID [{:04x}:{:04x}]", value.vendor_id, value.device_id);
|
|
}
|
|
};
|