diff options
Diffstat (limited to 'sys/dev/usb/controller/ehci_pci.c')
-rw-r--r-- | sys/dev/usb/controller/ehci_pci.c | 486 |
1 files changed, 486 insertions, 0 deletions
diff --git a/sys/dev/usb/controller/ehci_pci.c b/sys/dev/usb/controller/ehci_pci.c new file mode 100644 index 0000000..856ea68 --- /dev/null +++ b/sys/dev/usb/controller/ehci_pci.c @@ -0,0 +1,486 @@ +/*- + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Lennart Augustsson (augustss@carlstedt.se) at + * Carlstedt Research & Technology. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. + * + * The EHCI 1.0 spec can be found at + * http://developer.intel.com/technology/usb/download/ehci-r10.pdf + * and the USB 2.0 spec at + * http://www.usb.org/developers/docs/usb_20.zip + */ + +/* The low level controller code for EHCI has been split into + * PCI probes and EHCI specific code. This was done to facilitate the + * sharing of code between *BSD's + */ + +#include <dev/usb/usb_mfunc.h> +#include <dev/usb/usb_defs.h> +#include <dev/usb/usb.h> + +#include <dev/usb/usb_core.h> +#include <dev/usb/usb_busdma.h> +#include <dev/usb/usb_process.h> +#include <dev/usb/usb_sw_transfer.h> +#include <dev/usb/usb_util.h> + +#include <dev/usb/usb_controller.h> +#include <dev/usb/usb_bus.h> +#include <dev/usb/usb_pci.h> +#include <dev/usb/controller/ehci.h> + +#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 +#define PCI_EHCI_VENDORID_AMD 0x1022 +#define PCI_EHCI_VENDORID_APPLE 0x106b +#define PCI_EHCI_VENDORID_ATI 0x1002 +#define PCI_EHCI_VENDORID_CMDTECH 0x1095 +#define PCI_EHCI_VENDORID_INTEL 0x8086 +#define PCI_EHCI_VENDORID_NEC 0x1033 +#define PCI_EHCI_VENDORID_OPTI 0x1045 +#define PCI_EHCI_VENDORID_PHILIPS 0x1131 +#define PCI_EHCI_VENDORID_SIS 0x1039 +#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 +#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE +#define PCI_EHCI_VENDORID_VIA 0x1106 + +#define PCI_EHCI_BASE_REG 0x10 + +static void ehci_pci_takecontroller(device_t self); + +static device_probe_t ehci_pci_probe; +static device_attach_t ehci_pci_attach; +static device_detach_t ehci_pci_detach; +static device_suspend_t ehci_pci_suspend; +static device_resume_t ehci_pci_resume; +static device_shutdown_t ehci_pci_shutdown; + +static int +ehci_pci_suspend(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + int err; + + err = bus_generic_suspend(self); + if (err) + return (err); + ehci_suspend(sc); + return (0); +} + +static int +ehci_pci_resume(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + + ehci_pci_takecontroller(self); + ehci_resume(sc); + + bus_generic_resume(self); + + return (0); +} + +static int +ehci_pci_shutdown(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + int err; + + err = bus_generic_shutdown(self); + if (err) + return (err); + ehci_shutdown(sc); + + return (0); +} + +static const char * +ehci_pci_match(device_t self) +{ + uint32_t device_id = pci_get_devid(self); + + switch (device_id) { + case 0x268c8086: + return ("Intel 63XXESB USB 2.0 controller"); + + case 0x523910b9: + return "ALi M5239 USB 2.0 controller"; + + case 0x10227463: + return "AMD 8111 USB 2.0 controller"; + + case 0x20951022: + return ("AMD CS5536 (Geode) USB 2.0 controller"); + + case 0x43451002: + return "ATI SB200 USB 2.0 controller"; + case 0x43731002: + return "ATI SB400 USB 2.0 controller"; + + case 0x25ad8086: + return "Intel 6300ESB USB 2.0 controller"; + case 0x24cd8086: + return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; + case 0x24dd8086: + return "Intel 82801EB/R (ICH5) USB 2.0 controller"; + case 0x265c8086: + return "Intel 82801FB (ICH6) USB 2.0 controller"; + case 0x27cc8086: + return "Intel 82801GB/R (ICH7) USB 2.0 controller"; + + case 0x28368086: + return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; + case 0x283a8086: + return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; + case 0x293a8086: + return "Intel 82801I (ICH9) USB 2.0 controller"; + case 0x293c8086: + return "Intel 82801I (ICH9) USB 2.0 controller"; + + case 0x00e01033: + return ("NEC uPD 720100 USB 2.0 controller"); + + case 0x006810de: + return "NVIDIA nForce2 USB 2.0 controller"; + case 0x008810de: + return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; + case 0x00d810de: + return "NVIDIA nForce3 USB 2.0 controller"; + case 0x00e810de: + return "NVIDIA nForce3 250 USB 2.0 controller"; + case 0x005b10de: + return "NVIDIA nForce4 USB 2.0 controller"; + + case 0x15621131: + return "Philips ISP156x USB 2.0 controller"; + + case 0x31041106: + return ("VIA VT6202 USB 2.0 controller"); + + default: + break; + } + + if ((pci_get_class(self) == PCIC_SERIALBUS) + && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) + && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { + return ("EHCI (generic) USB 2.0 controller"); + } + return (NULL); /* dunno */ +} + +static int +ehci_pci_probe(device_t self) +{ + const char *desc = ehci_pci_match(self); + + if (desc) { + device_set_desc(self, desc); + return (0); + } else { + return (ENXIO); + } +} + +static int +ehci_pci_attach(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + int err; + int rid; + + /* initialise some bus fields */ + sc->sc_bus.parent = self; + sc->sc_bus.devices = sc->sc_devices; + sc->sc_bus.devices_max = EHCI_MAX_DEVICES; + + /* get all DMA memory */ + if (usb2_bus_mem_alloc_all(&sc->sc_bus, + USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { + return (ENOMEM); + } + + pci_enable_busmaster(self); + + switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { + case PCI_USB_REV_PRE_1_0: + case PCI_USB_REV_1_0: + case PCI_USB_REV_1_1: + /* + * NOTE: some EHCI USB controllers have the wrong USB + * revision number. It appears those controllers are + * fully compliant so we just ignore this value in + * some common cases. + */ + device_printf(self, "pre-2.0 USB revision (ignored)\n"); + /* fallthrough */ + case PCI_USB_REV_2_0: + sc->sc_bus.usbrev = USB_REV_2_0; + break; + default: + /* Quirk for Parallels Desktop 4.0 */ + device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); + sc->sc_bus.usbrev = USB_REV_2_0; + break; + } + + rid = PCI_CBMEM; + sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, + RF_ACTIVE); + if (!sc->sc_io_res) { + device_printf(self, "Could not map memory\n"); + goto error; + } + sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); + sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); + sc->sc_io_size = rman_get_size(sc->sc_io_res); + + rid = 0; + sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, + RF_SHAREABLE | RF_ACTIVE); + if (sc->sc_irq_res == NULL) { + device_printf(self, "Could not allocate irq\n"); + goto error; + } + sc->sc_bus.bdev = device_add_child(self, "usbus", -1); + if (!sc->sc_bus.bdev) { + device_printf(self, "Could not add USB device\n"); + goto error; + } + device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); + + /* + * ehci_pci_match will never return NULL if ehci_pci_probe + * succeeded + */ + device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); + switch (pci_get_vendor(self)) { + case PCI_EHCI_VENDORID_ACERLABS: + sprintf(sc->sc_vendor, "AcerLabs"); + break; + case PCI_EHCI_VENDORID_AMD: + sprintf(sc->sc_vendor, "AMD"); + break; + case PCI_EHCI_VENDORID_APPLE: + sprintf(sc->sc_vendor, "Apple"); + break; + case PCI_EHCI_VENDORID_ATI: + sprintf(sc->sc_vendor, "ATI"); + break; + case PCI_EHCI_VENDORID_CMDTECH: + sprintf(sc->sc_vendor, "CMDTECH"); + break; + case PCI_EHCI_VENDORID_INTEL: + sprintf(sc->sc_vendor, "Intel"); + break; + case PCI_EHCI_VENDORID_NEC: + sprintf(sc->sc_vendor, "NEC"); + break; + case PCI_EHCI_VENDORID_OPTI: + sprintf(sc->sc_vendor, "OPTi"); + break; + case PCI_EHCI_VENDORID_PHILIPS: + sprintf(sc->sc_vendor, "Philips"); + break; + case PCI_EHCI_VENDORID_SIS: + sprintf(sc->sc_vendor, "SiS"); + break; + case PCI_EHCI_VENDORID_NVIDIA: + case PCI_EHCI_VENDORID_NVIDIA2: + sprintf(sc->sc_vendor, "nVidia"); + break; + case PCI_EHCI_VENDORID_VIA: + sprintf(sc->sc_vendor, "VIA"); + break; + default: + if (bootverbose) + device_printf(self, "(New EHCI DeviceId=0x%08x)\n", + pci_get_devid(self)); + sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); + } + +#if (__FreeBSD_version >= 700031) + err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + NULL, (void *)(void *)ehci_interrupt, sc, &sc->sc_intr_hdl); +#else + err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, + (void *)(void *)ehci_interrupt, sc, &sc->sc_intr_hdl); +#endif + if (err) { + device_printf(self, "Could not setup irq, %d\n", err); + sc->sc_intr_hdl = NULL; + goto error; + } + ehci_pci_takecontroller(self); + err = ehci_init(sc); + if (!err) { + err = device_probe_and_attach(sc->sc_bus.bdev); + } + if (err) { + device_printf(self, "USB init failed err=%d\n", err); + goto error; + } + return (0); + +error: + ehci_pci_detach(self); + return (ENXIO); +} + +static int +ehci_pci_detach(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + device_t bdev; + + if (sc->sc_bus.bdev) { + bdev = sc->sc_bus.bdev; + device_detach(bdev); + device_delete_child(self, bdev); + } + /* during module unload there are lots of children leftover */ + device_delete_all_children(self); + + pci_disable_busmaster(self); + + /* + * disable interrupts that might have been switched on in ehci_init + */ + if (sc->sc_io_res) { + EWRITE4(sc, EHCI_USBINTR, 0); + } + if (sc->sc_irq_res && sc->sc_intr_hdl) { + /* + * only call ehci_detach() after ehci_init() + */ + ehci_detach(sc); + + int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); + + if (err) + /* XXX or should we panic? */ + device_printf(self, "Could not tear down irq, %d\n", + err); + sc->sc_intr_hdl = NULL; + } + if (sc->sc_irq_res) { + bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); + sc->sc_irq_res = NULL; + } + if (sc->sc_io_res) { + bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, + sc->sc_io_res); + sc->sc_io_res = NULL; + } + usb2_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); + + return (0); +} + +static void +ehci_pci_takecontroller(device_t self) +{ + ehci_softc_t *sc = device_get_softc(self); + uint32_t cparams; + uint32_t eec; + uint16_t to; + uint8_t eecp; + uint8_t bios_sem; + + cparams = EREAD4(sc, EHCI_HCCPARAMS); + + /* Synchronise with the BIOS if it owns the controller. */ + for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; + eecp = EHCI_EECP_NEXT(eec)) { + eec = pci_read_config(self, eecp, 4); + if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { + continue; + } + bios_sem = pci_read_config(self, eecp + + EHCI_LEGSUP_BIOS_SEM, 1); + if (bios_sem == 0) { + continue; + } + device_printf(sc->sc_bus.bdev, "waiting for BIOS " + "to give up control\n"); + pci_write_config(self, eecp + + EHCI_LEGSUP_OS_SEM, 1, 1); + to = 500; + while (1) { + bios_sem = pci_read_config(self, eecp + + EHCI_LEGSUP_BIOS_SEM, 1); + if (bios_sem == 0) + break; + + if (--to == 0) { + device_printf(sc->sc_bus.bdev, + "timed out waiting for BIOS\n"); + break; + } + usb2_pause_mtx(NULL, hz / 100); /* wait 10ms */ + } + } +} + +static driver_t ehci_driver = +{ + .name = "ehci", + .methods = (device_method_t[]){ + /* device interface */ + DEVMETHOD(device_probe, ehci_pci_probe), + DEVMETHOD(device_attach, ehci_pci_attach), + DEVMETHOD(device_detach, ehci_pci_detach), + DEVMETHOD(device_suspend, ehci_pci_suspend), + DEVMETHOD(device_resume, ehci_pci_resume), + DEVMETHOD(device_shutdown, ehci_pci_shutdown), + /* bus interface */ + DEVMETHOD(bus_print_child, bus_generic_print_child), + + {0, 0} + }, + .size = sizeof(struct ehci_softc), +}; + +static devclass_t ehci_devclass; + +DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); +DRIVER_MODULE(ehci, cardbus, ehci_driver, ehci_devclass, 0, 0); +MODULE_DEPEND(ehci, usb, 1, 1, 1); |