pci_update_mappings(d);
}
-static inline PCIDevice *pci_addr_to_dev(PCIBus *bus, uint32_t addr)
-{
- uint8_t bus_num = (addr >> 16) & 0xff;
- uint8_t devfn = (addr >> 8) & 0xff;
- return pci_find_device(bus, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn));
-}
-
-static inline int pci_addr_to_config(uint32_t addr)
-{
- return addr & (PCI_CONFIG_SPACE_SIZE - 1);
-}
-
-void pci_data_write(void *opaque, uint32_t addr, uint32_t val, int len)
-{
- PCIBus *s = opaque;
- PCIDevice *pci_dev;
- int config_addr;
-
-#if 0
- PCI_DPRINTF("pci_data_write: addr=%08x val=%08x len=%d\n",
- addr, val, len);
-#endif
- pci_dev = pci_addr_to_dev(s, addr);
- if (!pci_dev)
- return;
- config_addr = addr & 0xff;
- config_addr = pci_addr_to_config(addr);
- PCI_DPRINTF("pci_config_write: %s: addr=%02x val=%08x len=%d\n",
- pci_dev->name, config_addr, val, len);
- pci_dev->config_write(pci_dev, config_addr, val, len);
-}
-
-uint32_t pci_data_read(void *opaque, uint32_t addr, int len)
-{
- PCIBus *s = opaque;
- PCIDevice *pci_dev;
- int config_addr;
- uint32_t val;
-
- pci_dev = pci_addr_to_dev(s, addr);
- if (!pci_dev) {
- switch(len) {
- case 1:
- val = 0xff;
- break;
- case 2:
- val = 0xffff;
- break;
- default:
- case 4:
- val = 0xffffffff;
- break;
- }
- goto the_end;
- }
- config_addr = pci_addr_to_config(addr);
- val = pci_dev->config_read(pci_dev, config_addr, len);
- PCI_DPRINTF("pci_config_read: %s: addr=%02x val=%08x len=%d\n",
- pci_dev->name, config_addr, val, len);
- the_end:
-#if 0
- PCI_DPRINTF("pci_data_read: addr=%08x val=%08x len=%d\n",
- addr, val, len);
-#endif
- return val;
-}
-
/***********************************************************/
/* generic PCI irq support */
#define PCI_DPRINTF(fmt, ...)
#endif
+/*
+ * PCI address
+ * bit 16 - 24: bus number
+ * bit 8 - 15: devfun number
+ * bit 0 - 7: offset in configuration space of a given pci device
+ */
+
+/* the helper functio to get a PCIDeice* for a given pci address */
+static inline PCIDevice *pci_addr_to_dev(PCIBus *bus, uint32_t addr)
+{
+ uint8_t bus_num = (addr >> 16) & 0xff;
+ uint8_t devfn = (addr >> 8) & 0xff;
+ return pci_find_device(bus, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn));
+}
+
+static inline uint32_t pci_addr_to_config(uint32_t addr)
+{
+ return addr & (PCI_CONFIG_SPACE_SIZE - 1);
+}
+
+void pci_data_write(void *opaque, uint32_t addr, uint32_t val, int len)
+{
+ PCIBus *s = opaque;
+ PCIDevice *pci_dev = pci_addr_to_dev(s, addr);
+ uint32_t config_addr = pci_addr_to_config(addr);
+
+ if (!pci_dev)
+ return;
+
+ PCI_DPRINTF("%s: %s: addr=%02"PRIx32" val=%08"PRI32x" len=%d\n",
+ __func__, pci_dev->name, config_addr, val, len);
+ pci_dev->config_write(pci_dev, config_addr, val, len);
+}
+
+uint32_t pci_data_read(void *opaque, uint32_t addr, int len)
+{
+ PCIBus *s = opaque;
+ PCIDevice *pci_dev = pci_addr_to_dev(s, addr);
+ uint32_t config_addr = pci_addr_to_config(addr);
+ uint32_t val;
+
+ if (!pci_dev) {
+ switch(len) {
+ case 1:
+ val = 0xff;
+ break;
+ case 2:
+ val = 0xffff;
+ break;
+ default:
+ case 4:
+ val = 0xffffffff;
+ break;
+ }
+ } else {
+ val = pci_dev->config_read(pci_dev, config_addr, len);
+ PCI_DPRINTF("%s: %s: addr=%02"PRIx32" val=%08"PRIx32" len=%d\n",
+ __func__, pci_dev->name, config_addr, val, len);
+ }
+
+ return val;
+}
+
static void pci_host_config_writel(void *opaque, target_phys_addr_t addr,
uint32_t val)
{