Rewrite the USB keyboard console attachment (again). Grumble, Macintosh
firmware sets the "stdin" property of /chosen to be a pseudo-hid (yes, they even spell it incorrectly) that merges all keyboard input into one stream, so we can't find the USB controller we're attached to. Instead, just give it to the first USB keyboard found during autoconfiguration. So that we have SOMETHING available early on, use OpenFirmware i/o to do keyboard input to the console wsdisplay until the USB code attaches the keyboard. From Jason Thorpe <thorpej@nas.nasa.gov>
This commit is contained in:
thorpej
parent
0d0cc4aa14
commit
e5f47f6307
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@ -1,4 +1,4 @@
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/* $NetBSD: machdep.c,v 1.44 1999/05/07 22:20:38 wrstuden Exp $ */
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/* $NetBSD: machdep.c,v 1.45 1999/05/13 23:37:19 thorpej Exp $ */
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/*
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* Copyright (C) 1995, 1996 Wolfgang Solfrank.
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@ -88,25 +88,15 @@
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#include <machine/powerpc.h>
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#include <machine/trap.h>
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#include <dev/cons.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_pci.h>
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#include <machine/bus.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/cons.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dev/wscons/wsksymvar.h>
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#include <dev/wscons/wscons_callbacks.h>
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#include <dev/usb/uhcireg.h>
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#include <dev/usb/uhcivar.h>
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#include <dev/usb/ohcireg.h>
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#include <dev/usb/ohcivar.h>
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#include <dev/usb/ukbdvar.h>
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vm_map_t exec_map = NULL;
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vm_map_t mb_map = NULL;
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@ -129,6 +119,10 @@ paddr_t msgbuf_paddr;
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static int chosen;
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struct pmap ofw_pmap;
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int ofkbd_ihandle;
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int ofkbd_cngetc __P((dev_t));
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void ofkbd_cnpollc __P((dev_t, int));
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int msgbufmapped = 0;
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/*
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@ -1131,10 +1125,7 @@ cninit()
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#if NOFB > 0
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if (strcmp(type, "display") == 0) {
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u_int32_t pciclass, reg, bus, device, function;
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const char *usbstr;
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int stdin, i;
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pcitag_t tag;
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int stdin;
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/*
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* Attach the console output now (so we can see
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@ -1185,149 +1176,45 @@ cninit()
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}
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/*
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* Initialize the PCI chipsets; can't map configuration
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* space registers yet!
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* We're not an ADB keyboard; must be USB. Unfortunately,
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* we have a few problems:
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*
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* (1) The stupid Macintosh firmware uses a
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* `psuedo-hid' (yes, they even spell it
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* incorrectly!) which apparently merges
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* all USB keyboard input into a single
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* input stream. Because of this, we can't
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* actually determine which USB controller
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* or keyboard is really the console keyboard!
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*
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* (2) Even if we could, USB requires a lot of
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* the kernel to be running in order for it
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* to work.
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*
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* So, what we do is this:
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*
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* (1) Tell the ukbd driver that it is the console.
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* At autoconfiguration time, it will attach the
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* first USB keyboard instance as the console
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* keyboard.
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*
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* (2) Until then, so that we have _something_, we
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* use the OpenFirmware I/O facilities to read
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* the keyboard.
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*/
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pci_init(0);
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/*
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* We're not an ADB keyboard; must be USB. The parent
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* node is pointing at the root hub. We need to traverse
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* back until we find the USB controller.
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*/
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while (strcmp(type, "usb") != 0) {
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node = OF_parent(node);
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if (node == 0) {
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printf("WARNING: unable to find USB "
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"controller\n");
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return;
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}
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bzero(type, sizeof(type));
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l = OF_getprop(node, "name", type, sizeof(type));
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if (l == -1 || l >= sizeof(type) - 1) {
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printf("WARNING: bad `name' property "
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"searching for USB controller\n");
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return;
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}
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}
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/*
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* `node' is now pointing at the USB controller.
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* We must determine the type and location of this
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* controller.
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*/
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if (OF_getprop(node, "class-code", &pciclass, sizeof(pciclass))
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!= sizeof(pciclass)) {
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printf("WARNING: unable to get PCI class code of "
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"USB controller\n");
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return;
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}
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/*
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* The first address cell of the `reg' property will contain
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* bus/device/function information.
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*/
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if (OF_getprop(node, "reg", ®, sizeof(reg)) <= 0) {
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printf("WARNING: unable to get PCI location of "
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"USB controller\n");
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return;
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}
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if (PCI_CLASS(pciclass) != PCI_CLASS_SERIALBUS) {
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printf("WARNING: USB controller is not `serial bus' "
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"class\n");
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return;
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}
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if (PCI_SUBCLASS(pciclass) != PCI_SUBCLASS_SERIALBUS_USB) {
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printf("WARNING: USB controller is not `usb' "
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"subclass\n");
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return;
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}
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switch (PCI_INTERFACE(pciclass)) {
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case PCI_INTERFACE_UHCI:
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usbstr = "UHCI";
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break;
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case PCI_INTERFACE_OHCI:
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usbstr = "OHCI";
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break;
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default:
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printf("WARNING: unknown USB controller interface\n");
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return;
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}
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bus = (reg & OFW_PCI_PHYS_HI_BUSMASK) >>
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OFW_PCI_PHYS_HI_BUSSHIFT;
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device = (reg & OFW_PCI_PHYS_HI_DEVICEMASK) >>
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OFW_PCI_PHYS_HI_DEVICESHIFT;
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function = (reg & OFW_PCI_PHYS_HI_FUNCTIONMASK) >>
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OFW_PCI_PHYS_HI_FUNCTIONSHIFT;
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printf("console keyboard type: USB on %s at %d,%d,%d\n",
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usbstr, bus, device, function);
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/*
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* Locate the PCI bridge we're on, and create the tag
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* for the USB driver.
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*/
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for (i = 0; i < sizeof(pci_bridges) / sizeof(pci_bridges[0]);
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i++) {
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if (pci_bridges[i].present &&
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pci_bridges[i].bus == bus)
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break;
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}
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if (i == sizeof(pci_bridges) / sizeof(pci_bridges[0])) {
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printf("WARNING: can't locate USB controller's "
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"PCI bridge\n");
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return;
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}
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tag = pci_make_tag(pci_bridges[i].pc, bus, device, function);
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#if NUKBD > 0
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/*
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* XXX We can't attach the USB keyboard just yet. We
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* XXX must defer it until autoconfiguration, because
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* XXX the USB code must be able to use memory allocation,
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* XXX DMA, etc.
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* XXX
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* XXX THIS SHOULD BE FIXED SOME DAY!
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*/
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printf("console keyboard type: USB\n");
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ukbd_cnattach();
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#else
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panic("ukbd support not in kernel");
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#endif
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switch (PCI_INTERFACE(pciclass)) {
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case PCI_INTERFACE_UHCI:
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#if NUHCI > 0
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{
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extern void uhci_pci_has_console __P((pcitag_t));
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uhci_pci_has_console(tag);
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}
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#else
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panic("uhci support not in kernel");
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#endif
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break;
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case PCI_INTERFACE_OHCI:
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#if NOHCI > 0
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{
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extern void ohci_pci_has_console __P((pcitag_t));
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ohci_pci_has_console(tag);
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}
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#else
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panic("ohci support not in kernel");
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#endif
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break;
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default:
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panic("cninit: impossible");
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}
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/*
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* XXX This is a little gross, but we don't get to
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* XXX call wskbd_cnattach() twice.
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*/
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ofkbd_ihandle = stdin;
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wsdisplay_set_cons_kbd(ofkbd_cngetc, ofkbd_cnpollc);
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}
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#endif /* NOFB > 0 */
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@ -1360,3 +1247,29 @@ cninit()
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nocons:
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return;
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}
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/*
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* Bootstrap console keyboard routines, using OpenFirmware I/O.
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*/
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int
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ofkbd_cngetc(dev)
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dev_t dev;
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{
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u_char c = '\0';
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int l;
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do {
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l = OF_read(ofkbd_ihandle, &c, 1);
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} while (l != 1);
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return (c);
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}
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void
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ofkbd_cnpollc(dev, on)
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dev_t dev;
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int on;
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{
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/* Nothing to do; always polled. */
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}
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