diff options
Diffstat (limited to 'sys/dev/usb/ehci_pci.c')
| -rw-r--r-- | sys/dev/usb/ehci_pci.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sys/dev/usb/ehci_pci.c b/sys/dev/usb/ehci_pci.c index 204fad0..6ed26140 100644 --- a/sys/dev/usb/ehci_pci.c +++ b/sys/dev/usb/ehci_pci.c @@ -58,6 +58,8 @@ __FBSDID("$FreeBSD$"); #include <sys/systm.h> #include <sys/kernel.h> #include <sys/module.h> +#include <sys/lock.h> +#include <sys/mutex.h> #include <sys/bus.h> #include <sys/queue.h> #include <sys/lockmgr.h> @@ -420,6 +422,30 @@ ehci_pci_attach(device_t self) } sc->sc_ncomp = ncomp; + /* Allocate a parent dma tag for DMA maps */ + err = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, + BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, + USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, + &sc->sc_bus.parent_dmatag); + if (err) { + device_printf(self, "Could not allocate parent DMA tag (%d)\n", + err); + ehci_pci_detach(self); + return ENXIO; + } + + /* Allocate a dma tag for transfer buffers */ + err = bus_dma_tag_create(sc->sc_bus.parent_dmatag, 1, 0, + BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, + BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0, + busdma_lock_mutex, &Giant, &sc->sc_bus.buffer_dmatag); + if (err) { + device_printf(self, "Could not allocate buffer DMA tag (%d)\n", + err); + ehci_pci_detach(self); + return ENXIO; + } + ehci_pci_takecontroller(self); err = ehci_init(sc); if (!err) { @@ -450,6 +476,10 @@ ehci_pci_detach(device_t self) */ if (sc->iot && sc->ioh) bus_space_write_4(sc->iot, sc->ioh, EHCI_USBINTR, 0); + if (sc->sc_bus.parent_dmatag != NULL) + bus_dma_tag_destroy(sc->sc_bus.parent_dmatag); + if (sc->sc_bus.buffer_dmatag != NULL) + bus_dma_tag_destroy(sc->sc_bus.buffer_dmatag); if (sc->irq_res && sc->ih) { int err = bus_teardown_intr(self, sc->irq_res, sc->ih); |
