First step to a framework that can be used to initialize vga-cards on the
pci-bus. The code is called early in the bootphase and tries to initialize a known type of card into a 'standard' text mode. Wscons should be able to handle these cards afterwards.
This commit is contained in:
leo
parent
9729dbb6ad
commit
b9cb0eefd0
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@ -1,5 +1,5 @@
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#
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# $NetBSD: files.atari,v 1.59 1998/12/15 19:36:58 itohy Exp $
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# $NetBSD: files.atari,v 1.60 1999/03/15 15:47:11 leo Exp $
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maxpartitions 16
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@ -129,6 +129,8 @@ file arch/atari/dev/ms.c mouse needs-count
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# PCI-devices
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#
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file arch/atari/pci/pci_machdep.c pci | grfet
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file arch/atari/pci/pci_vga.c pci
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file arch/atari/pci/pci_tseng.c pci
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device pcibus
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attach pcibus at mainbus
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@ -1,4 +1,4 @@
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/* $NetBSD: pci_machdep.c,v 1.16 1999/02/19 20:57:15 leo Exp $ */
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/* $NetBSD: pci_machdep.c,v 1.17 1999/03/15 15:47:22 leo Exp $ */
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/*
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* Copyright (c) 1996 Leo Weppelman. All rights reserved.
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@ -52,6 +52,7 @@
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#include <machine/bus.h>
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#include <atari/atari/device.h>
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#include <atari/pci/pci_vga.h>
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/*
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* Sizes of pci memory and I/O area.
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@ -187,6 +188,12 @@ init_pci_bus()
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csr &= ~PCI_COMMAND_MASTER_ENABLE;
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pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr);
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}
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/*
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* Scan the bus for a VGA-card that we support. If we find
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* one, try to initialize it to a 'standard' text mode (80x25).
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*/
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check_for_vga();
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}
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/*
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@ -0,0 +1,190 @@
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/* $NetBSD: pci_tseng.c,v 1.1 1999/03/15 15:47:22 leo Exp $ */
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/*
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* Copyright (c) 1999 Leo Weppelman. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Leo Weppelman.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/systm.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/pci/pcidevs.h>
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#include <atari/pci/pci_vga.h>
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#include <atari/dev/grf_etreg.h>
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#define PCI_LINMEMBASE 0x0e000000
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#define PCI_IOBASE 0x800
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static void et6000_init(volatile u_char *, u_char *);
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/*
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* Use tables for the card init...
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*/
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static u_char seq_tab[] = {
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0x03, 0x01, 0x03, 0x00, 0x02, 0x00, 0x00, 0x00 };
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static u_char gfx_tab[] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x06, 0x0f, 0xff };
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static u_char attr_tab[] = {
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0x0a, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00 };
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static u_char crt_tab[] = {
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0x60, 0x53, 0x4f, 0x94, 0x56, 0x05, 0xc1, 0x1f,
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0x00, 0x4f, 0x00, 0x0f, 0x00, 0x00, 0x07, 0x80,
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0x98, 0x3d, 0x8f, 0x28, 0x0f, 0x8f, 0xc2, 0xa3,
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0xff, 0x3d, 0x8f, 0x28, 0x0f, 0x8f, 0xc2, 0xa3,
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0x60, 0x08, 0x00, 0x00, 0x56, 0x05, 0xc1, 0x1f,
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0x00, 0x4f, 0x00, 0x0f, 0x00, 0x00, 0x07, 0x80,
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0x85, 0x01, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00,
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0x05, 0x01, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00 };
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void
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tseng_init(pc, tag, id, ba, fb)
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pci_chipset_tag_t pc;
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pcitag_t tag;
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int id;
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volatile u_char *ba;
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u_char *fb;
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{
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int i, csr;
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int is_et6000 = 0;
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is_et6000 = (id == PCI_PRODUCT_TSENG_ET6000) ? 1 : 0;
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/* Turn on the card */
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pci_conf_write(pc, tag, PCI_MAPREG_START, PCI_LINMEMBASE);
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if (is_et6000)
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pci_conf_write(pc, tag, PCI_MAPREG_START+4,
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PCI_IOBASE | PCI_MAPREG_TYPE_IO);
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csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
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csr |= (PCI_COMMAND_MEM_ENABLE|PCI_COMMAND_IO_ENABLE);
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csr |= PCI_COMMAND_MASTER_ENABLE;
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pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr);
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if (is_et6000)
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et6000_init(ba, fb);
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vgaw(ba, GREG_MISC_OUTPUT_W, 0x63);
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vgaw(ba, GREG_VIDEOSYSENABLE, 0x01);
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WCrt(ba, 0x17 , 0x00); /* color */
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WCrt(ba, 0x11 , 0x00); /* color */
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vgaw(ba, VDAC_MASK , 0xff);
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WSeq(ba, SEQ_ID_RESET , 0x00);
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vgaw(ba, GREG_HERCULESCOMPAT, 0x03);
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vgaw(ba, GREG_DISPMODECONTROL, 0xa0);
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/* Load sequencer */
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for (i = 1; i < 8; i++)
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WSeq(ba, i, seq_tab[i]);
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WSeq(ba, SEQ_ID_RESET , 0x03);
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vgar(ba, VDAC_ADDRESS); /* clear old state */
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vgar(ba, VDAC_MASK);
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vgar(ba, VDAC_MASK);
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vgar(ba, VDAC_MASK);
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vgar(ba, VDAC_MASK);
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vgaw(ba, VDAC_MASK, 0); /* set to palette */
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vgar(ba, VDAC_ADDRESS); /* clear state */
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vgaw(ba, VDAC_MASK, 0xff);
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/*
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* Make sure we're allowed to write all crt-registers
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*/
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WCrt(ba, CRT_ID_END_VER_RETR, (RCrt(ba, CRT_ID_END_VER_RETR) & 0x7f));
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/* CRT registers */
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for (i = 0; i < 0x3e; i++)
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WCrt(ba, i, crt_tab[i]);
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/* GCT registers */
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for (i = 0; i < 0x09; i++)
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WGfx(ba, i, gfx_tab[i]);
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for (i = 0; i < 0x10; i++)
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WAttr(ba, i, i);
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for (; i < 0x18; i++)
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WAttr(ba, i, attr_tab[i - 0x10]);
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WAttr(ba, 0x20, 0);
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}
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/*
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* Initialize the et6000 specific (PCI) registers. Try to do it like the
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* video-bios would have done it, so things like Xservers get what they
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* expect. Most info was kindly provided by Koen Gadeyne.
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*/
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static void
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et6000_init(ba, fb)
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volatile u_char *ba;
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u_char *fb;
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{
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int i;
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u_char dac_tab[] = { 0x7d,0x67, 0x5d,0x64, 0x56,0x63,
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0x28,0x22, 0x79,0x49, 0x6f,0x47,
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0x28,0x41, 0x6b,0x44, 0x00,0x00,
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0x00,0x00, 0x5d,0x25, 0x00,0x00,
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0x00,0x00, 0x00,0x96 };
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ba += 0x800;
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ba[0x40] = 0x06; /* Use standard vga addressing */
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ba[0x41] = 0x2a; /* Performance control */
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ba[0x43] = 0x02; /* XCLK/SCLK config */
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ba[0x44] = 0x11; /* RAS/CAS config */
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ba[0x46] = 0x00; /* CRT display feature */
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ba[0x47] = 0x10;
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ba[0x58] = 0x00; /* Video Control 1 */
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ba[0x59] = 0x04; /* Video Control 2 */
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/*
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* Setup a 'standard' CLKDAC
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*/
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ba[0x42] = 0x00; /* MCLK == CLK0 */
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ba[0x67] = 0x00; /* Start filling from dac-reg 0 and up... */
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for (i = 0; i < 0x16; i++)
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ba[0x69] = dac_tab[i];
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if (ba[8] == 0x70) { /* et6100, right? */
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volatile u_char *ma = (volatile u_char *)fb;
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u_char bv;
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/*
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* XXX Black magic to get the bloody MDRAM's to function...
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* XXX _Only_ tested on my card! [leo]
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*/
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bv = ba[45];
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ba[0x45] = bv | 0x40; /* Reset MDRAM's */
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ba[0x45] = bv | 0x70; /* Program latency value */
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ma[0x0] = 0; /* Yeah, right :-( */
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ba[0x45] = bv; /* Back to normal */
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ba[0x44] = 0x14; /* RAS/CAS config */
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}
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}
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@ -0,0 +1,206 @@
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/* $NetBSD: pci_vga.c,v 1.1 1999/03/15 15:47:22 leo Exp $ */
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/*
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* Copyright (c) 1999 Leo Weppelman. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* 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:
|
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* This product includes software developed by Leo Weppelman.
|
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* 4. The name of the author may not be used to endorse or promote products
|
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* derived from this software without specific prior written permission.
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*
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* 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.
|
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*/
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/systm.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/pci/pcidevs.h>
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#include <atari/pci/pci_vga.h>
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#include <atari/dev/grf_etreg.h>
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#include <atari/include/iomap.h>
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#include <atari/dev/font.h>
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static void loadfont(volatile u_char *, u_char *fb);
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/* XXX: Shouldn't these be in font.h???? */
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extern font_info font_info_8x8;
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extern font_info font_info_8x16;
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/* Console colors */
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static u_char conscolors[3][3] = { /* background, foreground, hilite */
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{0x0, 0x0, 0x0}, {0x30, 0x30, 0x30}, { 0x3f, 0x3f, 0x3f}
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};
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/*
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* Go look for a VGA card on the PCI-bus. This search is a
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* stripped down version of the PCI-probe. It only looks on
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* bus0 for VGA cards. The first card found is used.
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*/
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int
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check_for_vga()
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{
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pci_chipset_tag_t pc = NULL; /* XXX */
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pcitag_t tag;
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int device, found, id, maxndevs, i, j;
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volatile u_char *regs;
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u_char *fb;
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char *nbd = "NetBSD/Atari";
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found = 0;
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tag = 0;
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id = 0;
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maxndevs = pci_bus_maxdevs(pc, 0);
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/*
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* These are setup in atari_init.c
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*/
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regs = (volatile caddr_t)pci_io_addr;
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fb = (caddr_t)pci_mem_addr;
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for (device = 0; !found && (device < maxndevs); device++) {
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tag = pci_make_tag(pc, 0, device, 0);
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id = pci_conf_read(pc, tag, PCI_ID_REG);
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if (id == 0 || id == 0xffffffff)
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continue;
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switch (id = PCI_PRODUCT(id)) {
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/*
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* XXX Make the inclusion of the cases dependend
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* on config options!
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*/
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case PCI_PRODUCT_TSENG_ET6000:
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case PCI_PRODUCT_TSENG_ET4000_W32P_A:
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case PCI_PRODUCT_TSENG_ET4000_W32P_B:
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case PCI_PRODUCT_TSENG_ET4000_W32P_C:
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case PCI_PRODUCT_TSENG_ET4000_W32P_D:
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tseng_init(pc, tag, id, regs, fb);
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found = 1;
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break;
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default:
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break;
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}
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}
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if (!found)
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return (0);
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/*
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* Generic parts of the initialization...
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*/
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/* B&W colors */
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vgaw(regs, VDAC_ADDRESS_W, 0);
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for (i = 0; i < 256; i++) {
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j = (i & 1) ? ((i > 7) ? 2 : 1) : 0;
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vgaw(regs, VDAC_DATA, conscolors[j][0]);
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vgaw(regs, VDAC_DATA, conscolors[j][1]);
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vgaw(regs, VDAC_DATA, conscolors[j][2]);
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}
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loadfont(regs, fb);
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/*
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* Clear the screen and print a message. The latter
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* is of diagnostic/debug use only.
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*/
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for (i = 50 * 80; i >= 0; i -= 2) {
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fb[i] = 0x20; fb[i+1] = 0x07;
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}
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for (i = 56; *nbd; i += 2)
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fb[i] = *nbd++;
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return (1);
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}
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/*
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* Generic VGA. Load the configured kernel font into the videomemory and
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* place the card into textmode.
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*/
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static void
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loadfont(ba, fb)
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volatile u_char *ba; /* Register area KVA */
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u_char *fb; /* Frame buffer KVA */
|
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{
|
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font_info *fd;
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u_char *c, *f, tmp;
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u_short z, y;
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#if defined(KFONT_8X8)
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fd = &font_info_8x8;
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#else
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fd = &font_info_8x16;
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#endif
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WAttr(ba, 0x20 | ACT_ID_ATTR_MODE_CNTL, 0x0a);
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WSeq(ba, SEQ_ID_MAP_MASK, 0x04);
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WSeq(ba, SEQ_ID_MEMORY_MODE, 0x06);
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WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x02);
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WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x00);
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WGfx(ba, GCT_ID_MISC, 0x04);
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/*
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* load text font into beginning of display memory. Each
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* character cell is 32 bytes long (enough for 4 planes)
|
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*/
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for (z = 0, c = fb; z < 256 * 32; z++)
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*c++ = 0;
|
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c = (unsigned char *) (fb) + (32 * fd->font_lo);
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f = fd->font_p;
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z = fd->font_lo;
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for (; z <= fd->font_hi; z++, c += (32 - fd->height))
|
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for (y = 0; y < fd->height; y++) {
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*c++ = *f++;
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}
|
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|
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/*
|
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* Odd/Even addressing
|
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*/
|
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WSeq(ba, SEQ_ID_MAP_MASK, 0x03);
|
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WSeq(ba, SEQ_ID_MEMORY_MODE, 0x03);
|
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WGfx(ba, GCT_ID_READ_MAP_SELECT, 0x00);
|
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WGfx(ba, GCT_ID_GRAPHICS_MODE, 0x10);
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WGfx(ba, GCT_ID_MISC, 0x06);
|
||||
|
||||
/*
|
||||
* Font height + underline location
|
||||
*/
|
||||
tmp = RCrt(ba, CRT_ID_MAX_ROW_ADDRESS) & 0xe0;
|
||||
WCrt(ba, CRT_ID_MAX_ROW_ADDRESS, tmp | (fd->height - 1));
|
||||
tmp = RCrt(ba, CRT_ID_UNDERLINE_LOC) & 0xe0;
|
||||
WCrt(ba, CRT_ID_UNDERLINE_LOC, tmp | (fd->height - 1));
|
||||
|
||||
/*
|
||||
* Cursor setup
|
||||
*/
|
||||
WCrt(ba, CRT_ID_CURSOR_START , 0x00);
|
||||
WCrt(ba, CRT_ID_CURSOR_END , fd->height - 1);
|
||||
WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, 0x00);
|
||||
WCrt(ba, CRT_ID_CURSOR_LOC_LOW , 0x00);
|
||||
|
||||
/*
|
||||
* Enter text mode
|
||||
*/
|
||||
WCrt(ba, CRT_ID_MODE_CONTROL , 0xa3);
|
||||
WAttr(ba, ACT_ID_ATTR_MODE_CNTL | 0x20, 0x0a);
|
||||
}
|
||||
|
|
@ -0,0 +1,37 @@
|
|||
/* $NetBSD: pci_vga.h,v 1.1 1999/03/15 15:47:22 leo Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1999 Leo Weppelman. 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. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Leo Weppelman.
|
||||
* 4. 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.
|
||||
*/
|
||||
int check_for_vga __P((void));
|
||||
|
||||
/*
|
||||
* Card specific functions
|
||||
*/
|
||||
void tseng_init __P((pci_chipset_tag_t, pcitag_t, int, volatile u_char *,
|
||||
u_char *));
|
||||
Loading…
Reference in New Issue