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first version of ide controller

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This commit is contained in:
Rick Rongen
2021-02-04 23:15:02 +01:00
parent dc8a0444f9
commit b156509da1
7 changed files with 572 additions and 68 deletions
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64
kernel/drivers/pci.h
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@@ -21,11 +21,45 @@
#define PCI_INIT_OK 0
#define PCI_INIT_FAIL 1
#define PCI_HEADER_TYPE_MULTI_FUNC 0x80
#define PCI_HEADER_TYPE_ENDPOINT 0x00
#define PCI_HEADER_TYPE_PCI_PCI_BRIDGE 0x01
#define PCI_HEADER_TYPE_PCI_CARDBUS_BRIDGE 0x02
#define PCI_CONFIG_VENDOR_ID 0x00
#define PCI_CONFIG_DEVICE_ID 0x02
#define PCI_CONFIG_COMMAND 0x04
#define PCI_CONFIG_STATUS 0x06
#define PCI_CONFIG_REVISION_ID 0x08
#define PCI_CONFIG_PROG_IF 0x09
#define PCI_CONFIG_SUBCLASS 0x0A
#define PCI_CONFIG_CLASS_CODE 0x0B
#define PCI_CONFIG_CACHE_LINE_SIZE 0x0C
#define PCI_CONFIG_LATENCY_TIMER 0x0D
#define PCI_CONFIG_HEADER_TYPE 0x0E
#define PCI_CONFIG_BIST 0x0F
#define PCI_CONFIG_BAR0 0x10
#define PCI_CONFIG_BAR1 0x14
#define PCI_CONFIG_BAR2 0x18
#define PCI_CONFIG_BAR3 0x1C
#define PCI_CONFIG_BAR4 0x20
#define PCI_CONFIG_BAR5 0x24
#define PCI_CONFIG_CARDBUS_CIS_P 0x28
#define PCI_CONFIG_SUBSYSTEM_VENDOR_ID 0x2C
#define PCI_CONFIG_SUBSYSTEM_ID 0x2E
#define PCI_CONFIG_EXPANSION_ROM_ADDR 0x30
#define PCI_CONFIG_CAP_POINTER 0x34
#define PCI_CONFIG_INTERRUPT_LINE 0x3C
#define PCI_CONFIG_INTERRUPT_PIN 0x3D
#define PCI_CONFIG_MAX_GRANT 0x3E
#define PCI_CONFIG_MAX_LATENCY 0x3F
typedef struct pci_driver pci_driver;
typedef struct pci_device pci_device;
typedef u8 (*pci_driver_validate)(const pci_device *);
typedef u8 (*pci_driver_initialize)(const pci_device *);
typedef u8 (*pci_driver_initialize)(pci_device *);
typedef struct pci_driver {
const char *name;
@@ -40,6 +74,15 @@ typedef struct pci_driver {
pci_driver_initialize initialize;
} pci_driver;
typedef struct {
u32 address;
u32 size;
u8 present: 1;
u8 is_io_space: 1;
u8 type: 2;
u8 prefetchable: 3;
} bar_info;
typedef struct pci_device {
u8 bus;
u8 slot;
@@ -69,6 +112,12 @@ typedef struct pci_device {
};
u32 config_line_3;
};
bar_info bar0;
bar_info bar1;
bar_info bar2;
bar_info bar3;
bar_info bar4;
bar_info bar5;
const pci_driver *pci_driver;
struct {
u8 present: 1;
@@ -88,4 +137,17 @@ void pci_init_drivers();
void pci_scan();
u32 pci_config_read_double_word(u8 bus, u8 slot, u8 func, u8 offset);
u16 pci_config_read_word(u8 bus, u8 slot, u8 func, u8 offset);
u8 pci_config_read_byte(u8 bus, u8 slot, u8 func, u8 offset);
void pci_config_write_double_word(u8 bus, u8 slot, u8 func, u8 offset, u32 value);
void pci_config_write_word(u8 bus, u8 slot, u8 func, u8 offset, u16 value);
void pci_config_write_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 value);
void pci_init_bar(pci_device *device, u8 bar_index);
#endif //NEW_KERNEL_PCI_H