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/* |
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* Copyright (C) 2004-2005 Anders Gavare. 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: |
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* |
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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. 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 AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: dev_pmagja.c,v 1.13 2005/02/11 09:53:48 debug Exp $ |
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* |
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* TURBOchannel PMAG-JA graphics device. |
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* |
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* TODO |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "devices.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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|
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|
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#define XSIZE 1280 |
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#define YSIZE 1024 |
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|
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#define PMAGJA_FIRSTOFFSET 0x40030 |
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|
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/* #define JA_DEBUG */ |
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|
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struct pmagja_data { |
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int irq_nr; |
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struct memory *fb_mem; |
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struct vfb_data *vfb_data; |
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|
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unsigned char pixeldata[XSIZE * YSIZE]; |
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|
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int current_r; |
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int current_g; |
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int current_b; |
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|
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int pip_offset; |
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}; |
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|
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|
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/* |
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* dev_pmagja_access(): |
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*/ |
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int dev_pmagja_access(struct cpu *cpu, struct memory *mem, |
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uint64_t relative_addr, unsigned char *data, size_t len, |
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int writeflag, void *extra) |
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{ |
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uint64_t idata = 0, odata = 0; |
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struct pmagja_data *d = extra; |
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int i, res = 1; |
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|
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relative_addr += PMAGJA_FIRSTOFFSET; |
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|
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idata = memory_readmax64(cpu, data, len); |
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|
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#ifdef JA_DEBUG |
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{ |
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int i; |
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for (i=0; i<len; i++) |
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if (data[i] != 0 && data[i] != 1 && data[i]!=0xff) |
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if (writeflag) |
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fatal("[ pmagja: write to addr 0x%08llx: 0x%08llx ]\n", |
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(long long)relative_addr, (long long)idata); |
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} |
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#endif |
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|
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switch (relative_addr) { |
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case 0x0800c4: /* pip offset */ |
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if (writeflag==MEM_READ) { |
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odata = d->pip_offset; |
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debug("[ pmagja: read from pip offset: 0x%08llx ]\n", |
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(long long)odata); |
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} else { |
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d->pip_offset = idata; |
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debug("[ px: write to pip offset: 0x%08llx ]\n", |
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(long long)idata); |
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} |
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break; |
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default: |
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if (relative_addr >= 0x200000) { |
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/* 8-bit access: */ |
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for (i=0; i<len; i++) { |
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int ofs = relative_addr - 0x200000 + i; |
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int x, y; |
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unsigned char newdata[3]; |
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y = ofs / XSIZE; |
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x = ofs - y*XSIZE; |
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|
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if (writeflag) { |
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d->pixeldata[x + y*XSIZE] = data[i]; |
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newdata[0] = d->vfb_data->rgb_palette[ |
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data[i] * 3 + 0]; |
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newdata[1] = d->vfb_data->rgb_palette[ |
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data[i] * 3 + 1]; |
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newdata[2] = d->vfb_data->rgb_palette[ |
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data[i] * 3 + 2]; |
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dev_fb_access(cpu, d->fb_mem, (x + |
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y * XSIZE) * 3, newdata, 3, |
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writeflag, d->vfb_data); |
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} else { |
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data[i] = d->pixeldata[x + y*XSIZE]; |
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} |
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} |
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/* Return success. */ |
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return 1; |
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} else if (relative_addr >= 0x100000 && |
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relative_addr < 0x200000) { |
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/* 24-bit access: */ |
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#if 0 |
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{ |
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if (writeflag) |
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if (idata != 0) |
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fatal("[ pmagja: write to addr 0x%08llx: 0x%08llx ]\n", |
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(long long)relative_addr, (long long)idata); |
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} |
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#endif |
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int x, y, ofs; |
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|
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ofs = (relative_addr - 0x100000) * 2; |
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y = ofs / XSIZE; |
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x = ofs - y * XSIZE; |
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|
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#if 0 |
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if (writeflag == MEM_WRITE) { |
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int ix; |
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for (ix=0; ix<len*2; ix++) { |
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unsigned char data[3]; |
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int ctype; |
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|
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data[0] = data[1] = data[2] = 0; |
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ctype = (idata >> (ix*4)) & 0xf; |
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if (ctype == 0) |
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data[0] = 255; |
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if (ctype == 3) |
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data[1] = 255; |
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if (ctype == 0xf) |
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data[2] = 255; |
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|
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res = dev_fb_access(cpu, d->fb_mem, |
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ofs * 3, data, 3, MEM_WRITE, |
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d->vfb_data); |
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ofs ++; |
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} |
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} |
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#endif |
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return 1; |
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} else { |
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/* Unknown: */ |
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if (writeflag==MEM_READ) { |
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fatal("[ pmagja: read from addr 0x%x: " |
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"0x%llx ]\n", (int)relative_addr, |
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(long long)odata); |
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} else { |
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fatal("[ pmagja: write to addr 0x%x: " |
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"0x%llx ]\n", (int)relative_addr, |
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(long long)idata); |
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} |
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} |
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} |
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|
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if (writeflag == MEM_READ) |
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memory_writemax64(cpu, data, len, odata); |
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|
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#ifdef JA_DEBUG |
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/* |
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if (!writeflag) |
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fatal("[ pmagja: read from addr 0x%08llx: 0x%08llx ]\n", |
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(long long)relative_addr, (long long)odata); |
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*/ |
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#endif |
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|
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return res; |
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} |
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|
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|
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/* |
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* dev_pmagja_init(): |
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*/ |
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void dev_pmagja_init(struct machine *machine, struct memory *mem, |
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uint64_t baseaddr, int irq_nr) |
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{ |
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struct pmagja_data *d; |
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|
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d = malloc(sizeof(struct pmagja_data)); |
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if (d == NULL) { |
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fprintf(stderr, "out of memory\n"); |
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exit(1); |
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} |
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memset(d, 0, sizeof(struct pmagja_data)); |
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|
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d->irq_nr = irq_nr; |
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|
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d->fb_mem = memory_new(XSIZE * YSIZE * 3); |
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if (d->fb_mem == NULL) { |
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fprintf(stderr, "dev_pmagja_init(): out of memory (1)\n"); |
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exit(1); |
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} |
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d->vfb_data = dev_fb_init(machine, d->fb_mem, 0, VFB_GENERIC, |
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XSIZE, YSIZE, XSIZE, YSIZE, 24, "PMAG-JA", 1); |
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if (d->vfb_data == NULL) { |
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fprintf(stderr, "dev_pmagja_init(): out of memory (2)\n"); |
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exit(2); |
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} |
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|
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/* TODO: not bt459, but a bt463: */ |
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dev_bt459_init(machine, mem, baseaddr + 0x40000, 0, d->vfb_data, 8, |
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irq_nr, 0); /* palette (TODO: type) */ |
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dev_bt431_init(mem, baseaddr + 0x40010, d->vfb_data, 8); /* cursor */ |
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|
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memory_device_register(mem, "pmagja", baseaddr + PMAGJA_FIRSTOFFSET, |
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DEV_PMAGJA_LENGTH - PMAGJA_FIRSTOFFSET, dev_pmagja_access, d, |
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MEM_DEFAULT, NULL); |
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} |
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