637 lines
16 KiB
C
637 lines
16 KiB
C
/*
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* SBUS and OpenPROM access functions.
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*
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* Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* JAKUB JELINEK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#ifdef sun
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#include <sys/utsname.h>
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#endif
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86_OSlib.h"
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#include "xf86sbusBus.h"
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#include "xf86Sbus.h"
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int promRootNode;
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static int promFd = -1;
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static int promCurrentNode;
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static int promOpenCount = 0;
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static int promP1275 = -1;
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#define MAX_PROP 128
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#define MAX_VAL (4096-128-4)
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static struct openpromio *promOpio;
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sbusDevicePtr *xf86SbusInfo = NULL;
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struct sbus_devtable sbusDeviceTable[] = {
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{ SBUS_DEVICE_BW2, FBTYPE_SUN2BW, "bwtwo", "Sun Monochrome (bwtwo)" },
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{ SBUS_DEVICE_CG2, FBTYPE_SUN2COLOR, "cgtwo", "Sun Color2 (cgtwo)" },
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{ SBUS_DEVICE_CG3, FBTYPE_SUN3COLOR, "cgthree", "Sun Color3 (cgthree)" },
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{ SBUS_DEVICE_CG4, FBTYPE_SUN4COLOR, "cgfour", "Sun Color4 (cgfour)" },
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{ SBUS_DEVICE_CG6, FBTYPE_SUNFAST_COLOR, "cgsix", "Sun GX" },
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{ SBUS_DEVICE_CG8, FBTYPE_MEMCOLOR, "cgeight", "Sun CG8/RasterOps" },
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{ SBUS_DEVICE_CG12, FBTYPE_SUNGP3, "cgtwelve", "Sun GS (cgtwelve)" },
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{ SBUS_DEVICE_CG14, FBTYPE_MDICOLOR, "cgfourteen", "Sun SX" },
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{ SBUS_DEVICE_GT, FBTYPE_SUNGT, "gt", "Sun Graphics Tower" },
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{ SBUS_DEVICE_MGX, -1, "mgx", "Quantum 3D MGXplus" },
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{ SBUS_DEVICE_LEO, FBTYPE_SUNLEO, "leo", "Sun ZX or Turbo ZX" },
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{ SBUS_DEVICE_TCX, FBTYPE_TCXCOLOR, "tcx", "Sun TCX" },
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{ SBUS_DEVICE_FFB, FBTYPE_CREATOR, "ffb", "Sun FFB" },
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{ SBUS_DEVICE_FFB, FBTYPE_CREATOR, "afb", "Sun Elite3D" },
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{ 0, 0, NULL }
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};
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int
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promGetSibling(int node)
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{
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promOpio->oprom_size = sizeof(int);
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if (node == -1) return 0;
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*(int *)promOpio->oprom_array = node;
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if (ioctl(promFd, OPROMNEXT, promOpio) < 0)
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return 0;
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promCurrentNode = *(int *)promOpio->oprom_array;
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return *(int *)promOpio->oprom_array;
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}
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int
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promGetChild(int node)
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{
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promOpio->oprom_size = sizeof(int);
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if (!node || node == -1) return 0;
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*(int *)promOpio->oprom_array = node;
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if (ioctl(promFd, OPROMCHILD, promOpio) < 0)
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return 0;
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promCurrentNode = *(int *)promOpio->oprom_array;
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return *(int *)promOpio->oprom_array;
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}
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char *
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promGetProperty(const char *prop, int *lenp)
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{
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promOpio->oprom_size = MAX_VAL;
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strcpy(promOpio->oprom_array, prop);
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if (ioctl(promFd, OPROMGETPROP, promOpio) < 0)
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return 0;
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if (lenp) *lenp = promOpio->oprom_size;
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return promOpio->oprom_array;
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}
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int
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promGetBool(const char *prop)
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{
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promOpio->oprom_size = 0;
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*(int *)promOpio->oprom_array = 0;
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for (;;) {
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promOpio->oprom_size = MAX_PROP;
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if (ioctl(promFd, OPROMNXTPROP, promOpio) < 0)
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return 0;
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if (!promOpio->oprom_size)
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return 0;
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if (!strcmp(promOpio->oprom_array, prop))
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return 1;
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}
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}
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#define PROM_NODE_SIBLING 0x01
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#define PROM_NODE_PREF 0x02
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#define PROM_NODE_SBUS 0x04
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#define PROM_NODE_EBUS 0x08
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#define PROM_NODE_PCI 0x10
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static int
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promSetNode(sbusPromNodePtr pnode)
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{
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int node;
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if (!pnode->node || pnode->node == -1)
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return -1;
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if (pnode->cookie[0] & PROM_NODE_SIBLING)
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node = promGetSibling(pnode->cookie[1]);
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else
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node = promGetChild(pnode->cookie[1]);
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if (pnode->node != node)
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return -1;
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return 0;
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}
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static void
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promIsP1275(void)
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{
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#ifdef linux
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FILE *f;
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char buffer[1024];
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if (promP1275 != -1)
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return;
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promP1275 = 0;
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f = fopen("/proc/cpuinfo","r");
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if (!f) return;
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while (fgets(buffer, 1024, f) != NULL)
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if (!strncmp (buffer, "type", 4) && strstr (buffer, "sun4u")) {
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promP1275 = 1;
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break;
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}
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fclose(f);
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#elif defined(sun)
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struct utsname buffer;
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if ((uname(&buffer) >= 0) && !strcmp(buffer.machine, "sun4u"))
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promP1275 = TRUE;
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else
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promP1275 = FALSE;
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#elif defined(__FreeBSD__)
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promP1275 = TRUE;
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#else
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#error Missing promIsP1275() function for this OS
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#endif
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}
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_X_EXPORT void
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sparcPromClose(void)
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{
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if (promOpenCount > 1) {
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promOpenCount--;
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return;
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}
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if (promFd != -1) {
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close(promFd);
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promFd = -1;
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}
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if (promOpio) {
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xfree(promOpio);
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promOpio = NULL;
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}
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promOpenCount = 0;
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}
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_X_EXPORT int
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sparcPromInit(void)
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{
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if (promOpenCount) {
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promOpenCount++;
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return 0;
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}
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promFd = open("/dev/openprom", O_RDONLY, 0);
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if (promFd == -1)
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return -1;
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promOpio = (struct openpromio *)xalloc(4096);
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if (!promOpio) {
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sparcPromClose();
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return -1;
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}
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promRootNode = promGetSibling(0);
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if (!promRootNode) {
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sparcPromClose();
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return -1;
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}
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promIsP1275();
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promOpenCount++;
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return 0;
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}
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_X_EXPORT char *
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sparcPromGetProperty(sbusPromNodePtr pnode, const char *prop, int *lenp)
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{
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if (promSetNode(pnode))
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return NULL;
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return promGetProperty(prop, lenp);
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}
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_X_EXPORT int
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sparcPromGetBool(sbusPromNodePtr pnode, const char *prop)
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{
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if (promSetNode(pnode))
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return 0;
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return promGetBool(prop);
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}
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static void
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promWalkAssignNodes(int node, int oldnode, int flags, sbusDevicePtr *devicePtrs)
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{
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int nextnode;
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int len, sbus = flags & PROM_NODE_SBUS;
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char *prop;
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int devId, i, j;
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sbusPromNode pNode, pNode2;
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prop = promGetProperty("device_type", &len);
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if (prop && (len > 0)) do {
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if (!strcmp(prop, "display")) {
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prop = promGetProperty("name", &len);
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if (!prop || len <= 0)
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break;
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while ((*prop >= 'A' && *prop <= 'Z') || *prop == ',')
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prop++;
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for (i = 0; sbusDeviceTable[i].devId; i++)
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if (!strcmp(prop, sbusDeviceTable[i].promName))
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break;
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devId = sbusDeviceTable[i].devId;
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if (!devId)
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break;
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if (!sbus) {
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if (devId == SBUS_DEVICE_FFB) {
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/*
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* All /SUNW,ffb outside of SBUS tree come before all
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* /SUNW,afb outside of SBUS tree in Linux.
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*/
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if (!strcmp(prop, "afb"))
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flags |= PROM_NODE_PREF;
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} else if (devId != SBUS_DEVICE_CG14)
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break;
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}
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for (i = 0; i < 32; i++) {
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if (!devicePtrs[i] || devicePtrs[i]->devId != devId)
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continue;
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if (devicePtrs[i]->node.node) {
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if ((devicePtrs[i]->node.cookie[0] & ~PROM_NODE_SIBLING) <=
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(flags & ~PROM_NODE_SIBLING))
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continue;
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for (j = i + 1, pNode = devicePtrs[i]->node; j < 32; j++) {
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if (!devicePtrs[j] || devicePtrs[j]->devId != devId)
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continue;
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pNode2 = devicePtrs[j]->node;
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devicePtrs[j]->node = pNode;
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pNode = pNode2;
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}
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}
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devicePtrs[i]->node.node = node;
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devicePtrs[i]->node.cookie[0] = flags;
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devicePtrs[i]->node.cookie[1] = oldnode;
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break;
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}
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break;
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}
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} while (0);
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prop = promGetProperty("name", &len);
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if (prop && len > 0) {
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if (!strcmp(prop, "sbus") || !strcmp(prop, "sbi"))
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sbus = PROM_NODE_SBUS;
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}
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nextnode = promGetChild(node);
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if (nextnode)
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promWalkAssignNodes(nextnode, node, sbus, devicePtrs);
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nextnode = promGetSibling(node);
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if (nextnode)
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promWalkAssignNodes(nextnode, node, PROM_NODE_SIBLING | sbus, devicePtrs);
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}
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void
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sparcPromAssignNodes(void)
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{
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sbusDevicePtr psdp, *psdpp;
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int n, holes = 0, i, j;
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FILE *f;
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sbusDevicePtr devicePtrs[32];
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(void)memset(devicePtrs, 0, sizeof(devicePtrs));
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for (psdpp = xf86SbusInfo, n = 0; (psdp = *psdpp); psdpp++, n++) {
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if (psdp->fbNum != n)
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holes = 1;
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devicePtrs[psdp->fbNum] = psdp;
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}
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if (holes && (f = fopen("/proc/fb", "r")) != NULL) {
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/* We could not open one of fb devices, check /proc/fb to see what
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* were the types of the cards missed. */
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char buffer[64];
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int fbNum, devId;
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static struct {
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int devId;
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char *prefix;
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} procFbPrefixes[] = {
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{ SBUS_DEVICE_BW2, "BWtwo" },
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{ SBUS_DEVICE_CG14, "CGfourteen" },
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{ SBUS_DEVICE_CG6, "CGsix" },
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{ SBUS_DEVICE_CG3, "CGthree" },
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{ SBUS_DEVICE_FFB, "Creator" },
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{ SBUS_DEVICE_FFB, "Elite 3D" },
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{ SBUS_DEVICE_LEO, "Leo" },
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{ SBUS_DEVICE_TCX, "TCX" },
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{ 0, NULL },
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};
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while (fscanf(f, "%d %63s\n", &fbNum, buffer) == 2) {
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for (i = 0; procFbPrefixes[i].devId; i++)
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if (! strncmp(procFbPrefixes[i].prefix, buffer,
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strlen(procFbPrefixes[i].prefix)))
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break;
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devId = procFbPrefixes[i].devId;
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if (! devId) continue;
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if (devicePtrs[fbNum]) {
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if (devicePtrs[fbNum]->devId != devId)
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xf86ErrorF("Inconsistent /proc/fb with FBIOGATTR\n");
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} else if (!devicePtrs[fbNum]) {
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devicePtrs[fbNum] = psdp = xnfcalloc(sizeof (sbusDevice), 1);
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psdp->devId = devId;
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psdp->fbNum = fbNum;
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psdp->fd = -2;
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}
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}
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fclose(f);
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}
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promGetSibling(0);
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promWalkAssignNodes(promRootNode, 0, PROM_NODE_PREF, devicePtrs);
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for (i = 0, j = 0; i < 32; i++)
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if (devicePtrs[i] && devicePtrs[i]->fbNum == -1)
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j++;
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xf86SbusInfo = xnfrealloc(xf86SbusInfo, sizeof(psdp) * (n + j + 1));
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for (i = 0, psdpp = xf86SbusInfo; i < 32; i++)
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if (devicePtrs[i]) {
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if (devicePtrs[i]->fbNum == -1) {
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memmove(psdpp + 1, psdpp, sizeof(psdpp) * (n + 1));
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*psdpp = devicePtrs[i];
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} else
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n--;
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}
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}
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static char *
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promGetReg(int type)
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{
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char *prop;
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int len;
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static char regstr[40];
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regstr[0] = 0;
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prop = promGetProperty("reg", &len);
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if (prop && len >= 4) {
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unsigned int *reg = (unsigned int *)prop;
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if (!promP1275 || (type == PROM_NODE_SBUS) || (type == PROM_NODE_EBUS))
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sprintf (regstr, "@%x,%x", reg[0], reg[1]);
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else if (type == PROM_NODE_PCI) {
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if ((reg[0] >> 8) & 7)
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sprintf (regstr, "@%x,%x", (reg[0] >> 11) & 0x1f, (reg[0] >> 8) & 7);
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else
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sprintf (regstr, "@%x", (reg[0] >> 11) & 0x1f);
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} else if (len == 4)
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sprintf (regstr, "@%x", reg[0]);
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else {
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unsigned int regs[2];
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/* Things get more complicated on UPA. If upa-portid exists,
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then address is @upa-portid,second-int-in-reg, otherwise
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it is @first-int-in-reg/16,second-int-in-reg (well, probably
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upa-portid always exists, but just to be safe). */
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memcpy (regs, reg, sizeof(regs));
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prop = promGetProperty("upa-portid", &len);
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if (prop && len == 4) {
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reg = (unsigned int *)prop;
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sprintf (regstr, "@%x,%x", reg[0], regs[1]);
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} else
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sprintf (regstr, "@%x,%x", regs[0] >> 4, regs[1]);
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}
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}
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return regstr;
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}
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static int
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promWalkNode2Pathname(char *path, int parent, int node, int searchNode, int type)
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{
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int nextnode;
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int len, ntype = type;
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char *prop, *p;
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prop = promGetProperty("name", &len);
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*path = '/';
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if (!prop || len <= 0)
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return 0;
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if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type)
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ntype = PROM_NODE_SBUS;
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else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI)
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ntype = PROM_NODE_EBUS;
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else if (!strcmp(prop, "pci") && !type)
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ntype = PROM_NODE_PCI;
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strcpy (path + 1, prop);
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p = promGetReg(type);
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if (*p)
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strcat (path, p);
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if (node == searchNode)
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return 1;
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nextnode = promGetChild(node);
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if (nextnode &&
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promWalkNode2Pathname(strchr(path, 0), node, nextnode, searchNode, ntype))
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return 1;
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nextnode = promGetSibling(node);
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if (nextnode &&
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promWalkNode2Pathname(path, parent, nextnode, searchNode, type))
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return 1;
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return 0;
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}
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char *
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sparcPromNode2Pathname(sbusPromNodePtr pnode)
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{
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char *ret;
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if (!pnode->node) return NULL;
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ret = xalloc(4096);
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if (!ret) return NULL;
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if (promWalkNode2Pathname(ret, promRootNode, promGetChild(promRootNode), pnode->node, 0))
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return ret;
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xfree(ret);
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return NULL;
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}
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static int
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promWalkPathname2Node(char *name, char *regstr, int parent, int type)
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{
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int len, node, ret;
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char *prop, *p;
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for (;;) {
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prop = promGetProperty("name", &len);
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if (!prop || len <= 0)
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return 0;
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if ((!strcmp(prop, "sbus") || !strcmp(prop, "sbi")) && !type)
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type = PROM_NODE_SBUS;
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else if (!strcmp(prop, "ebus") && type == PROM_NODE_PCI)
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type = PROM_NODE_EBUS;
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else if (!strcmp(prop, "pci") && !type)
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type = PROM_NODE_PCI;
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for (node = promGetChild(parent); node; node = promGetSibling(node)) {
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prop = promGetProperty("name", &len);
|
|
if (!prop || len <= 0)
|
|
continue;
|
|
if (*name && strcmp(name, prop))
|
|
continue;
|
|
if (*regstr) {
|
|
p = promGetReg(type);
|
|
if (! *p || strcmp(p + 1, regstr))
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
if (!node) {
|
|
for (node = promGetChild(parent); node; node = promGetSibling(node)) {
|
|
ret = promWalkPathname2Node(name, regstr, node, type);
|
|
if (ret) return ret;
|
|
}
|
|
return 0;
|
|
}
|
|
name = strchr(regstr, 0) + 1;
|
|
if (! *name)
|
|
return node;
|
|
p = strchr(name, '/');
|
|
if (p)
|
|
*p = 0;
|
|
else
|
|
p = strchr(name, 0);
|
|
regstr = strchr(name, '@');
|
|
if (regstr)
|
|
*regstr++ = 0;
|
|
else
|
|
regstr = p;
|
|
if (name == regstr)
|
|
return 0;
|
|
parent = node;
|
|
}
|
|
}
|
|
|
|
int
|
|
sparcPromPathname2Node(const char *pathName)
|
|
{
|
|
int i;
|
|
char *name, *regstr, *p;
|
|
|
|
i = strlen(pathName);
|
|
name = xalloc(i + 2);
|
|
if (! name) return 0;
|
|
strcpy (name, pathName);
|
|
name [i + 1] = 0;
|
|
if (name[0] != '/')
|
|
return 0;
|
|
p = strchr(name + 1, '/');
|
|
if (p)
|
|
*p = 0;
|
|
else
|
|
p = strchr(name, 0);
|
|
regstr = strchr(name, '@');
|
|
if (regstr)
|
|
*regstr++ = 0;
|
|
else
|
|
regstr = p;
|
|
if (name + 1 == regstr)
|
|
return 0;
|
|
promGetSibling(0);
|
|
i = promWalkPathname2Node(name + 1, regstr, promRootNode, 0);
|
|
xfree(name);
|
|
return i;
|
|
}
|
|
|
|
_X_EXPORT pointer
|
|
xf86MapSbusMem(sbusDevicePtr psdp, unsigned long offset, unsigned long size)
|
|
{
|
|
pointer ret;
|
|
unsigned long pagemask = getpagesize() - 1;
|
|
unsigned long off = offset & ~pagemask;
|
|
unsigned long len = ((offset + size + pagemask) & ~pagemask) - off;
|
|
|
|
if (psdp->fd == -1) {
|
|
psdp->fd = open(psdp->device, O_RDWR);
|
|
if (psdp->fd == -1)
|
|
return NULL;
|
|
} else if (psdp->fd < 0)
|
|
return NULL;
|
|
|
|
ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE,
|
|
psdp->fd, off);
|
|
if (ret == (pointer) -1) {
|
|
ret = (pointer) mmap (NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED,
|
|
psdp->fd, off);
|
|
}
|
|
if (ret == (pointer) -1)
|
|
return NULL;
|
|
|
|
return (char *)ret + (offset - off);
|
|
}
|
|
|
|
_X_EXPORT void
|
|
xf86UnmapSbusMem(sbusDevicePtr psdp, pointer addr, unsigned long size)
|
|
{
|
|
unsigned long mask = getpagesize() - 1;
|
|
unsigned long base = (unsigned long)addr & ~mask;
|
|
unsigned long len = (((unsigned long)addr + size + mask) & ~mask) - base;
|
|
|
|
munmap ((pointer)base, len);
|
|
}
|
|
|
|
/* Tell OS that we are driving the HW cursor ourselves. */
|
|
_X_EXPORT void
|
|
xf86SbusHideOsHwCursor(sbusDevicePtr psdp)
|
|
{
|
|
struct fbcursor fbcursor;
|
|
unsigned char zeros[8];
|
|
|
|
memset(&fbcursor, 0, sizeof(fbcursor));
|
|
memset(&zeros, 0, sizeof(zeros));
|
|
fbcursor.cmap.count = 2;
|
|
fbcursor.cmap.red = zeros;
|
|
fbcursor.cmap.green = zeros;
|
|
fbcursor.cmap.blue = zeros;
|
|
fbcursor.image = (char *)zeros;
|
|
fbcursor.mask = (char *)zeros;
|
|
fbcursor.size.x = 32;
|
|
fbcursor.size.y = 1;
|
|
fbcursor.set = FB_CUR_SETALL;
|
|
ioctl(psdp->fd, FBIOSCURSOR, &fbcursor);
|
|
}
|
|
|
|
/* Set HW cursor colormap. */
|
|
_X_EXPORT void
|
|
xf86SbusSetOsHwCursorCmap(sbusDevicePtr psdp, int bg, int fg)
|
|
{
|
|
struct fbcursor fbcursor;
|
|
unsigned char red[2], green[2], blue[2];
|
|
|
|
memset(&fbcursor, 0, sizeof(fbcursor));
|
|
red[0] = bg >> 16;
|
|
green[0] = bg >> 8;
|
|
blue[0] = bg;
|
|
red[1] = fg >> 16;
|
|
green[1] = fg >> 8;
|
|
blue[1] = fg;
|
|
fbcursor.cmap.count = 2;
|
|
fbcursor.cmap.red = red;
|
|
fbcursor.cmap.green = green;
|
|
fbcursor.cmap.blue = blue;
|
|
fbcursor.set = FB_CUR_SETCMAP;
|
|
ioctl(psdp->fd, FBIOSCURSOR, &fbcursor);
|
|
}
|