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feat: used linker to link pci drivers

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This commit is contained in:
Rick Rongen
2021-03-06 15:29:31 +01:00
parent 38b5b611fa
commit 645e18018d
6 changed files with 40 additions and 41 deletions
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26
kernel/drivers/pci.h
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@@ -76,14 +76,21 @@
#define PCI_INTERRUPT_LINE_DISABLED 0xff
typedef struct pci_driver pci_driver;
#ifndef PCI_DRIVER_ALIGNMENT
#if defined(__LP64__)
#define PCI_DRIVER_ALIGNMENT 16
#else
#define PCI_DRIVER_ALIGNMENT 8
#endif
#endif
typedef struct pci_device pci_device;
typedef uint8_t (*pci_driver_validate)(const pci_device *);
typedef uint8_t (*pci_driver_initialize)(pci_device *);
typedef struct pci_driver {
struct pci_driver {
const char *name;
const char *description;
uint8_t order;
@@ -96,7 +103,16 @@ typedef struct pci_driver {
};
pci_driver_validate validate;
pci_driver_initialize initialize;
} pci_driver;
} __attribute__((__aligned__(PCI_DRIVER_ALIGNMENT)));
#define PCI_DRIVER_NAME(counter) DRIVER_CAT(pci_driver_, counter)
#define DRIVER_CAT(a, b) DRIVER_DUMMY() a ## b
#define DRIVER_DUMMY()
#define PCI_DRIVER(data...) \
static struct pci_driver PCI_DRIVER_NAME(__COUNTER__) \
__attribute((__used__, __section__("pci_drivers"))) \
= { data }
typedef struct {
uint32_t address;
@@ -142,7 +158,7 @@ typedef struct pci_device {
bar_info bar3;
bar_info bar4;
bar_info bar5;
const pci_driver *pci_driver;
const struct pci_driver *pci_driver;
struct {
uint8_t present: 1;
} device_state;
@@ -198,8 +214,6 @@ void pci_pretty_print();
#endif
uint32_t pci_register_driver(const pci_driver *pci_driver);
void pci_sort_drivers();
void pci_init_drivers();