/*
* Create the appropriate control structures to manage a new XHCI host
* controller.
*/
int xhci_hcd_init(int index, struct xhci_hccr **ret_hccr,
struct xhci_hcor **ret_hcor)
{
struct xhci_hccr *hccr;
struct xhci_hcor *hcor;
pci_dev_t pdev;
uint32_t cmd;
int len;
pdev = pci_find_class(PCI_CLASS_SERIAL_USB_XHCI, index);
if (pdev < 0) {
printf("XHCI host controller not found\n");
return -1;
}
hccr = (struct xhci_hccr *)pci_map_bar(pdev,
PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
len = HC_LENGTH(xhci_readl(&hccr->cr_capbase));
hcor = (struct xhci_hcor *)((uint32_t)hccr + len);
debug("XHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
(uint32_t)hccr, (uint32_t)hcor, len);
*ret_hccr = hccr;
*ret_hcor = hcor;
/* enable busmaster */
pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
pci_write_config_dword(pdev, PCI_COMMAND, cmd);
return 0;
}
static void ehci_pci_common_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
struct ehci_hcor **ret_hcor)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
uint32_t cmd;
hccr = (struct ehci_hccr *)pci_map_bar(pdev,
PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
hcor = (struct ehci_hcor *)((uint32_t) hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
(uint32_t)hccr, (uint32_t)hcor,
(uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
*ret_hccr = hccr;
*ret_hcor = hcor;
/* enable busmaster */
pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
pci_write_config_dword(pdev, PCI_COMMAND, cmd);
}
