1 #ifndef SPARC64_PCI_H
2 #define SPARC64_PCI_H
3
4 #include "asm/io.h"
5
6 #if !(defined(PCI_CONFIG_1) || defined(PCI_CONFIG_2))
7 #define PCI_CONFIG_1 1 /* default */
8 #endif
9
10 #ifdef PCI_CONFIG_1
11
12 /* PCI Configuration Mechanism #1 */
13
14 #define PCI_ADDR(bus, dev, fn) \
15 (((pci_addr) (uint32_t) (bus) << 16 \
16 | (uint32_t) (dev) << 11 \
17 | (uint32_t) (fn) << 8))
18
19 #define PCI_BUS(pcidev) ((uint8_t) ((pcidev) >> 16) & 0xff)
20 #define PCI_DEV(pcidev) ((uint8_t) ((pcidev) >> 11) & 0x1f)
21 #define PCI_FN(pcidev) ((uint8_t) ((pcidev) >> 8) & 7)
22
23 #define PCI_CONFIG(dev) (arch->cfg_addr \
24 + (unsigned long)PCI_ADDR(PCI_BUS(dev), \
25 PCI_DEV(dev), \
26 PCI_FN(dev)))
27
pci_config_read8(pci_addr dev,uint8_t reg)28 static inline uint8_t pci_config_read8(pci_addr dev, uint8_t reg)
29 {
30 uint8_t res;
31 res = in_8((unsigned char*)(PCI_CONFIG(dev) + reg));
32 return res;
33 }
34
pci_config_read16(pci_addr dev,uint8_t reg)35 static inline uint16_t pci_config_read16(pci_addr dev, uint8_t reg)
36 {
37 uint16_t res;
38 res = in_le16((uint16_t *)(PCI_CONFIG(dev) + reg));
39 return res;
40 }
41
pci_config_read32(pci_addr dev,uint8_t reg)42 static inline uint32_t pci_config_read32(pci_addr dev, uint8_t reg)
43 {
44 uint32_t res;
45 res = in_le32((uint32_t *)(PCI_CONFIG(dev) + reg));
46 return res;
47 }
48
pci_config_write8(pci_addr dev,uint8_t reg,uint8_t val)49 static inline void pci_config_write8(pci_addr dev, uint8_t reg, uint8_t val)
50 {
51 out_8((unsigned char*)(PCI_CONFIG(dev) + reg), val);
52 }
53
pci_config_write16(pci_addr dev,uint8_t reg,uint16_t val)54 static inline void pci_config_write16(pci_addr dev, uint8_t reg, uint16_t val)
55 {
56 out_le16((uint16_t *)(PCI_CONFIG(dev) + reg), val);
57 }
58
pci_config_write32(pci_addr dev,uint8_t reg,uint32_t val)59 static inline void pci_config_write32(pci_addr dev, uint8_t reg, uint32_t val)
60 {
61 out_le32((uint32_t *)(PCI_CONFIG(dev) + reg), val);
62 }
63 #else /* !PCI_CONFIG_1 */
64 #error PCI Configuration Mechanism is not specified or implemented
65 #endif
66
67 #endif /* SPARC64_PCI_H */
68