/* $NetBSD: consinit.c,v 1.24 2007/10/17 19:57:28 garbled Exp $ */ /*- * Copyright (c) 1999 Eduardo E. Horvath * All rights reserved. * * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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> __KERNEL_RCSID(0, "$NetBSD: consinit.c,v 1.24 2007/10/17 19:57:28 garbled Exp $"); #include "opt_ddb.h" #include "pcons.h" #include "ukbd.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/conf.h> #include <sys/device.h> #include <sys/file.h> #include <sys/ioctl.h> #include <sys/kernel.h> #include <sys/proc.h> #include <sys/tty.h> #include <sys/time.h> #include <sys/syslog.h> #include <machine/autoconf.h> #include <machine/openfirm.h> #include <machine/bsd_openprom.h> #include <machine/cpu.h> #include <machine/eeprom.h> #include <machine/psl.h> #include <machine/z8530var.h> #include <machine/sparc64.h> #include <dev/cons.h> #include <sparc64/dev/cons.h> #include <dev/usb/ukbdvar.h> static void prom_cnprobe(struct consdev *); static void prom_cninit(struct consdev *); int prom_cngetc(dev_t); static void prom_cnputc(dev_t, int); static void prom_cnpollc(dev_t, int); /* * The console is set to this one initially, * which lets us use the PROM until consinit() * is called to select a real console. */ struct consdev consdev_prom = { .cn_probe = prom_cnprobe, .cn_init = prom_cninit, .cn_getc = prom_cngetc, .cn_putc = prom_cnputc, .cn_pollc = prom_cnpollc, }; /* * The console table pointer is statically initialized * to point to the PROM (output only) table, so that * early calls to printf will work. */ struct consdev *cn_tab = &consdev_prom; void prom_cnprobe(struct consdev *cd) { #if NPCONS > 0 int maj; extern const struct cdevsw pcons_cdevsw; maj = cdevsw_lookup_major(&pcons_cdevsw); cd->cn_dev = makedev(maj, 0); cd->cn_pri = CN_INTERNAL; #endif } int prom_cngetc(dev_t dev) { unsigned char ch = '\0'; int l; #ifdef DDB static int nplus = 0; #endif while ((l = prom_read(prom_stdin(), &ch, 1)) != 1) /* void */; #ifdef DDB if (ch == '+') { if (nplus++ > 3) Debugger(); } else nplus = 0; #endif if (ch == '\r') ch = '\n'; return ch; } static void prom_cninit(struct consdev *cn) { } /* * PROM console output putchar. */ static void prom_cnputc(dev_t dev, int c) { int s; char c0 = (c & 0x7f); s = splhigh(); prom_write(prom_stdout(), &c0, 1); splx(s); } void prom_cnpollc(dev_t dev, int on) { if (on) { /* Entering debugger. */ #if NFB > 0 fb_unblank(); #endif } else { /* Resuming kernel. */ } #if NPCONS > 0 pcons_cnpollc(dev, on); #endif } /*****************************************************************/ #ifdef DEBUG #define DBPRINT(x) prom_printf x #else #define DBPRINT(x) #endif int prom_stdin_node; int prom_stdout_node; /* * This function replaces sys/dev/cninit.c * Determine which device is the console using * the PROM "input source" and "output sink". */ void consinit() { int chosen; char buffer[128]; const char *consname = "unknown"; DBPRINT(("consinit()\r\n")); if (cn_tab != &consdev_prom) return; chosen = prom_finddevice("/chosen"); if ((prom_stdin_node = prom_instance_to_package(prom_stdin())) == 0) { printf("WARNING: no PROM stdin\n"); } DBPRINT(("stdin node = %x\r\n", prom_stdin_node)); if ((prom_stdout_node = prom_instance_to_package(prom_stdout())) == 0) printf("WARNING: no PROM stdout\n"); DBPRINT(("stdout package = %x\r\n", prom_stdout_node)); DBPRINT(("buffer @ %p\r\n", buffer)); if (prom_stdin_node != 0 && (prom_getproplen(prom_stdin_node, "keyboard") >= 0)) { #if NUKBD > 0 if ((OF_instance_to_path(prom_stdin(), buffer, sizeof(buffer)) >= 0) && (strstr(buffer, "/usb@") != NULL)) { /* * If we have a USB keyboard, it will show up as (e.g.) * /pci@1f,0/usb@c,3/keyboard@1 (Blade 100) */ consname = "usb-keyboard/display"; ukbd_cnattach(); } else #endif consname = "sun-keyboard/display"; } else if (prom_stdin_node != 0 && (OF_instance_to_path(prom_stdin(), buffer, sizeof(buffer)) >= 0)) { consname = buffer; } DBPRINT(("console is %s\n", consname)); /* Initialize PROM console */ (*cn_tab->cn_probe)(cn_tab); (*cn_tab->cn_init)(cn_tab); }