diff options
Diffstat (limited to 'contrib/syslinux-4.02/com32/include/sys/pci.h')
| -rw-r--r-- | contrib/syslinux-4.02/com32/include/sys/pci.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/com32/include/sys/pci.h b/contrib/syslinux-4.02/com32/include/sys/pci.h new file mode 100644 index 0000000..aba1f96 --- /dev/null +++ b/contrib/syslinux-4.02/com32/include/sys/pci.h @@ -0,0 +1,153 @@ +#ifndef _SYS_PCI_H +#define _SYS_PCI_H + +#include <inttypes.h> +#include <sys/io.h> + +#define MAX_PCI_FUNC 8 +#define MAX_PCI_DEVICES 32 +#define MAX_PCI_BUSES 256 +#define LINUX_KERNEL_MODULE_SIZE 64 +#define PCI_VENDOR_NAME_SIZE 256 +#define PCI_PRODUCT_NAME_SIZE 256 +#define PCI_CLASS_NAME_SIZE 256 +#define MAX_KERNEL_MODULES_PER_PCI_DEVICE 10 +#define MAX_PCI_CLASSES 256 + +typedef uint32_t pciaddr_t; + +enum { + ENOPCIIDS = 100, + ENOMODULESPCIMAP, + ENOMODULESALIAS +}; + +/* a structure for extended pci information */ +/* XXX: use pointers for these? */ +struct pci_dev_info { + char vendor_name[PCI_VENDOR_NAME_SIZE]; + char product_name[PCI_PRODUCT_NAME_SIZE]; + char linux_kernel_module[LINUX_KERNEL_MODULE_SIZE] + [MAX_KERNEL_MODULES_PER_PCI_DEVICE]; + int linux_kernel_module_count; + char class_name[PCI_CLASS_NAME_SIZE]; /* The most precise class name */ + char category_name[PCI_CLASS_NAME_SIZE]; /*The general category */ + uint8_t irq; + uint8_t latency; +}; + +/* PCI device (really, function) */ +struct pci_device { + union { + struct { + uint16_t vendor; + uint16_t product; + uint16_t sub_vendor; + uint16_t sub_product; + uint8_t revision; + uint8_t class[3]; + }; + struct { + uint32_t vid_did; + uint32_t svid_sdid; + uint32_t rid_class; + }; + }; + struct pci_dev_info *dev_info; + struct pci_device *next; +}; + +/* PCI device ("slot") structure */ +struct pci_slot { + struct pci_device *func[MAX_PCI_FUNC]; +}; + +/* PCI bus structure */ +struct pci_bus { + struct pci_slot *slot[MAX_PCI_DEVICES]; +}; + +/* PCI domain structure */ +struct pci_domain { + struct pci_bus *bus[MAX_PCI_BUSES]; +}; + +/* Iterate over a PCI domain */ +#define for_each_pci_func(funcp, domain) \ + for (int __pci_bus = 0; __pci_bus < MAX_PCI_BUSES; __pci_bus++) \ + if ((domain)->bus[__pci_bus]) \ + for (int __pci_slot = 0; __pci_slot < MAX_PCI_DEVICES; __pci_slot++) \ + if ((domain)->bus[__pci_bus]->slot[__pci_slot]) \ + for (int __pci_func = 0; __pci_func < MAX_PCI_FUNC; __pci_func++) \ + if (((funcp) = (domain)->bus[__pci_bus]->slot[__pci_slot]-> \ + func[__pci_func])) + +#define for_each_pci_func3(funcp, domain, addr) \ + for (int __pci_bus = 0; __pci_bus < MAX_PCI_BUSES; __pci_bus++) \ + if ((domain)->bus[__pci_bus]) \ + for (int __pci_slot = 0; __pci_slot < MAX_PCI_DEVICES; __pci_slot++) \ + if ((domain)->bus[__pci_bus]->slot[__pci_slot]) \ + for (int __pci_func = 0; __pci_func < MAX_PCI_FUNC; __pci_func++) \ + if (((addr) = pci_mkaddr(__pci_bus, __pci_slot, __pci_func, 0)), \ + ((funcp) = (domain)->bus[__pci_bus]->slot[__pci_slot]-> \ + func[__pci_func])) + +struct match { + struct match *next; + uint32_t did; + uint32_t did_mask; + uint32_t sid; + uint32_t sid_mask; + uint8_t rid_min, rid_max; + char *filename; +}; + +static inline pciaddr_t pci_mkaddr(uint32_t bus, uint32_t dev, + uint32_t func, uint32_t reg) +{ + return 0x80000000 | ((bus & 0xff) << 16) | ((dev & 0x1f) << 11) | + ((func & 0x07) << 8) | (reg & 0xff); +} + +static inline int pci_bus(pciaddr_t addr) +{ + return (addr >> 16) & 0xff; +} + +static inline int pci_dev(pciaddr_t addr) +{ + return (addr >> 11) & 0x1f; +} + +static inline int pci_func(pciaddr_t addr) +{ + return (addr >> 8) & 0x07; +} + +enum pci_config_type { + PCI_CFG_NONE = -1, /* badness */ + PCI_CFG_AUTO = 0, /* autodetect */ + PCI_CFG_TYPE1 = 1, + PCI_CFG_TYPE2 = 2, + PCI_CFG_BIOS = 3, +}; + +enum pci_config_type pci_set_config_type(enum pci_config_type); + +uint8_t pci_readb(pciaddr_t); +uint16_t pci_readw(pciaddr_t); +uint32_t pci_readl(pciaddr_t); +void pci_writeb(uint8_t, pciaddr_t); +void pci_writew(uint16_t, pciaddr_t); +void pci_writel(uint32_t, pciaddr_t); + +struct pci_domain *pci_scan(void); +void free_pci_domain(struct pci_domain *domain); +struct match *find_pci_device(const struct pci_domain *pci_domain, + struct match *list); +int get_name_from_pci_ids(struct pci_domain *pci_domain, char *pciids_path); +int get_module_name_from_pcimap(struct pci_domain *pci_domain, char *modules_pcimap_path); +int get_module_name_from_alias(struct pci_domain *pci_domain, char *modules_alias_path); +int get_class_name_from_pci_ids(struct pci_domain *pci_domain, char *pciids_path); +void gather_additional_pci_config(struct pci_domain *domain); +#endif /* _SYS_PCI_H */ |