diff options
Diffstat (limited to 'payloads/libpayload/drivers/usb/ohci.c')
| -rw-r--r-- | payloads/libpayload/drivers/usb/ohci.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/payloads/libpayload/drivers/usb/ohci.c b/payloads/libpayload/drivers/usb/ohci.c index be6d5e343a..6d98cc1100 100644 --- a/payloads/libpayload/drivers/usb/ohci.c +++ b/payloads/libpayload/drivers/usb/ohci.c @@ -129,17 +129,20 @@ ohci_init (pcidev_t addr) } int interval = OHCI_INST (controller)->opreg->HcFmInterval; - td_t *periodic_td = memalign(sizeof(*periodic_td), sizeof(*periodic_td)); - memset((void*)periodic_td, 0, sizeof(*periodic_td)); - for (i=0; i<32; i++) OHCI_INST (controller)->hcca->HccaInterruptTable[i] = virt_to_phys(periodic_td); - /* TODO: build HCCA data structures */ - OHCI_INST (controller)->opreg->HcCommandStatus = HostControllerReset; udelay (10); /* at most 10us for reset to complete. State must be set to Operational within 2ms (5.1.1.4) */ OHCI_INST (controller)->opreg->HcFmInterval = interval; OHCI_INST (controller)->hcca = memalign(256, 256); memset((void*)OHCI_INST (controller)->hcca, 0, 256); + /* Initialize interrupt table. */ + u32 *const intr_table = OHCI_INST(controller)->hcca->HccaInterruptTable; + ed_t *const periodic_ed = memalign(sizeof(ed_t), sizeof(ed_t)); + memset((void *)periodic_ed, 0, sizeof(*periodic_ed)); + for (i = 0; i < 32; ++i) + intr_table[i] = virt_to_phys(periodic_ed); + OHCI_INST (controller)->periodic_ed = periodic_ed; + OHCI_INST (controller)->opreg->HcHCCA = virt_to_phys(OHCI_INST (controller)->hcca); OHCI_INST (controller)->opreg->HcControl &= ~IsochronousEnable; // unused by this driver // disable everything, contrary to what OHCI spec says in 5.1.1.4, as we don't need IRQs @@ -167,6 +170,7 @@ ohci_shutdown (hci_t *controller) ohci_stop(controller); OHCI_INST (controller)->roothub->destroy (OHCI_INST (controller)-> roothub); + free ((void *)OHCI_INST (controller)->periodic_ed); free (OHCI_INST (controller)); free (controller); } |