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/* |
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* Copyright (C) 2004-2007 Anders Gavare. All rights reserved. |
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dpavlin |
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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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dpavlin |
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* $Id: dev_px.c,v 1.38 2007/06/15 19:57:33 debug Exp $ |
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dpavlin |
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* |
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dpavlin |
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* COMMENT: TURBOchannel Pixelstamp graphics card |
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dpavlin |
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* |
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* PMAG-CA = PX |
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* PMAG-DA = PXG |
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* PMAG-EA = PXG+ |
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* PMAG-FA = PXG+ TURBO |
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* |
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* See include/pxreg.h (and NetBSD's arch/pmax/dev/px.c) for more information. |
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* |
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* The emulation of this device is far from complete. Different pixelstamp |
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* boards are recognizes under different names depending on operating system: |
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* |
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* NetBSD/pmax: (works fine both with and without console on framebuffer) |
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* PMAG-CA: px0 at tc0 slot 0 offset 0x0: 2D, 4x1 stamp, |
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* 8 plane |
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* PMAG-DA: px0 at tc0 slot 0 offset 0x0: 3D, 4x1 stamp, |
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* 8 plane, 128KB SRAM |
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* PMAG-EA: (not supported) |
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* PMAG-FA: px0 at tc0 slot 0 offset 0x0: 3D, 5x2 stamp, |
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* 24 plane, 128KB SRAM |
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* |
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* Ultrix 4.2A rev 47: (usually crashes if the device is installed, but |
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* serial console is used) |
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* PMAG-CA: px0 at ibus0, pa0 (5x1 8+8+0+0) |
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* PMAG-DA: px0 at ibus0, pq0 (5x1 16+16+16+0 128KB) |
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* or (5x1 0+0+16+0 128KB) |
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* PMAG-EA: (not supported) |
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* PMAG-FA: px0 at ibus0, pq0 (5x2 24+24+16+16 128KB) |
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* |
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* Ultrix 4.2 rev 85: (usually crashes if the device is installed, |
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* but serial console is used) |
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* PMAG-CA: ga0 at ibus0, ga0 ( 8 planes 4x1 stamp ) |
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* PMAG-DA: gq0 at ibus0, gq0 ( 8+8+16Z+0X plane 4x1 stamp ) |
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* PMAG-EA: (not supported) |
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* PMAG-FA: gq0 at ibus0, gq0 ( 24+24+24Z+24X plane |
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* 5x2 stamp ) (crashes in serial console mode) |
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* |
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* TODO: A lot of stuff: |
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* |
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* Read http://www.mit.edu/afs/athena/system/pmax_ul3/srvd.73/sys/ |
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* io/tc/gq.h |
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* and try to figure out the interrupt and memory management stuff. |
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* |
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* Color support: foreground, background, 8-bit palette? |
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* 2D and 3D stuff: polygons? shading? |
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* Don't use so many hardcoded values. |
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* Actually interpret the values in each command, don't just |
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* assume NetBSD/Ultrix usage. |
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* Factor out the DMA read (main memory vs sram). |
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* Interrupts? |
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* Make sure that everything works with both NetBSD and Ultrix. |
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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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#include "cpu.h" |
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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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#include "pxreg.h" |
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#define PX_XSIZE 1280 |
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#define PX_YSIZE 1024 |
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/* #define PX_DEBUG */ |
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dpavlin |
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DEVICE_TICK(px) |
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{ |
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#if 0 |
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struct px_data *d = extra; |
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if (d->intr & STIC_INT_P_EN) /* or _WE ? */ |
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INTERRUPT_ASSERT(d->irq); |
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#endif |
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} |
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/* |
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* px_readword(): |
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* |
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* Helper function to read 32-bit words from DMA memory, |
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* to allow both little and big endian accesses. |
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* (DECstations probably only use little endian access, |
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* but endianness-independance is probably nice to have anyway.) |
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*/ |
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uint32_t px_readword(struct cpu *cpu, unsigned char *dma_buf, int ofs) |
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{ |
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if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
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return dma_buf[ofs+0] + (dma_buf[ofs+1] << 8) + |
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(dma_buf[ofs+2] << 16) + (dma_buf[ofs+3] << 24); |
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else |
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return dma_buf[ofs+3] + (dma_buf[ofs+2] << 8) + |
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(dma_buf[ofs+1] << 16) + (dma_buf[ofs+0] << 24); |
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} |
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/* |
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* dev_px_dma(): |
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* |
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* This routine performs a (fake) DMA transfer of STAMP commands |
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* and executes them. |
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* |
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* For the "PX" board, read from main memory (cpu->mem). For all other |
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* boards, read from the i860 SRAM portion of the device (d->sram). |
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*/ |
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void dev_px_dma(struct cpu *cpu, uint32_t sys_addr, struct px_data *d) |
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{ |
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unsigned char dma_buf[32768]; |
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size_t dma_len = sizeof(dma_buf); |
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int bytesperpixel; |
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uint32_t cmdword; |
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bytesperpixel = d->bitdepth >> 3; |
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dma_len = 56 * 4; /* TODO: this is just enough for NetBSD's |
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putchar */ |
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if (d->type == DEV_PX_TYPE_PX) { |
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cpu->memory_rw(cpu, cpu->mem, sys_addr, dma_buf, |
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dma_len, MEM_READ, NO_EXCEPTIONS | PHYSICAL); |
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} else { |
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/* TODO: past end of sram? */ |
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memmove(dma_buf, &d->sram[sys_addr & 0x1ffff], dma_len); |
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} |
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if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
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cmdword = dma_buf[0] + (dma_buf[1] << 8) + |
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(dma_buf[2] << 16) + (dma_buf[3] << 24); |
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else |
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cmdword = dma_buf[3] + (dma_buf[2] << 8) + |
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(dma_buf[1] << 16) + (dma_buf[0] << 24); |
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#ifdef PX_DEBUG |
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debug("[ px: dma from 0x%08x: ", (int)sys_addr); |
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debug("cmd="); |
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switch (cmdword & 0xf) { |
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case STAMP_CMD_POINTS: debug("points"); break; |
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case STAMP_CMD_LINES: debug("lines"); break; |
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case STAMP_CMD_TRIANGLES: debug("triangles"); break; |
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case STAMP_CMD_COPYSPANS: debug("copyspans"); break; |
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case STAMP_CMD_READSPANS: debug("readspans"); break; |
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case STAMP_CMD_WRITESPANS: debug("writespans"); break; |
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case STAMP_CMD_VIDEO: debug("video"); break; |
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default: |
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debug("0x%x (?)", cmdword & 0xf); |
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} |
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debug(",rgb="); |
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switch (cmdword & 0x30) { |
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case STAMP_RGB_NONE: debug("none"); break; |
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case STAMP_RGB_CONST: debug("const"); break; |
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case STAMP_RGB_FLAT: debug("flat"); break; |
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case STAMP_RGB_SMOOTH: debug("smooth"); break; |
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default: |
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debug("0x%x (?)", cmdword & 0x30); |
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} |
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debug(",z="); |
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switch (cmdword & 0xc0) { |
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case STAMP_Z_NONE: debug("none"); break; |
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case STAMP_Z_CONST: debug("const"); break; |
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case STAMP_Z_FLAT: debug("flat"); break; |
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case STAMP_Z_SMOOTH: debug("smooth"); break; |
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default: |
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debug("0x%x (?)", cmdword & 0xc0); |
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} |
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debug(",xy="); |
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switch (cmdword & 0x300) { |
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case STAMP_XY_NONE: debug("none"); break; |
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case STAMP_XY_PERPACKET: debug("perpacket"); break; |
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case STAMP_XY_PERPRIMATIVE: debug("perprimative"); break; |
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default: |
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debug("0x%x (?)", cmdword & 0x300); |
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} |
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debug(",lw="); |
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switch (cmdword & 0xc00) { |
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case STAMP_LW_NONE: debug("none"); break; |
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case STAMP_LW_PERPACKET: debug("perpacket"); break; |
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case STAMP_LW_PERPRIMATIVE: debug("perprimative"); break; |
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default: |
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debug("0x%x (?)", cmdword & 0xc00); |
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} |
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if (cmdword & STAMP_CLIPRECT) |
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debug(",CLIPRECT"); |
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if (cmdword & STAMP_MESH) |
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debug(",MESH"); |
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if (cmdword & STAMP_AALINE) |
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debug(",AALINE"); |
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if (cmdword & STAMP_HS_EQUALS) |
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debug(",HS_EQUALS"); |
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{ |
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size_t i; |
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for (i=0; i<dma_len; i++) |
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debug(" %02x", dma_buf[i]); |
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} |
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debug(" ]\n"); |
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#endif /* PX_DEBUG */ |
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/* NetBSD and Ultrix copyspans */ |
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if (cmdword == 0x405) { |
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uint32_t nspans, lw; |
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dpavlin |
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uint32_t spannr, ofs; |
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uint32_t span_len, span_src, span_dst; |
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/* unsigned char pixels[PX_XSIZE * 3]; */ |
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if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
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nspans = dma_buf[4] + (dma_buf[5] << 8) + |
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(dma_buf[6] << 16) + (dma_buf[7] << 24); |
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else |
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nspans = dma_buf[7] + (dma_buf[6] << 8) + |
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(dma_buf[5] << 16) + (dma_buf[4] << 24); |
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if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
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lw = dma_buf[16] + (dma_buf[17] << 8) + |
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(dma_buf[18] << 16) + (dma_buf[19] << 24); |
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else |
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lw = dma_buf[19] + (dma_buf[18] << 8) + |
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(dma_buf[17] << 16) + (dma_buf[16] << 24); |
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nspans >>= 24; |
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/* Why not this? lw = (lw + 1) >> 2; */ |
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#ifdef PX_DEBUG |
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debug("[ px: copyspans: nspans = %i, lw = %i ]\n", nspans, lw); |
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#endif |
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/* Reread copyspans command if it wasn't completely read: */ |
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if (dma_len < 4*(5 + nspans*3)) { |
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dma_len = 4 * (5+nspans*3); |
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if (d->type == DEV_PX_TYPE_PX) |
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cpu->memory_rw(cpu, cpu->mem, sys_addr, |
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dma_buf, dma_len, MEM_READ, |
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NO_EXCEPTIONS | PHYSICAL); |
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else |
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memmove(dma_buf, &d->sram[sys_addr & 0x1ffff], |
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dma_len); /* TODO: past end of sram? */ |
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} |
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ofs = 4*5; |
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for (spannr=0; spannr<nspans; spannr++) { |
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if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
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span_len = dma_buf[ofs+0] + (dma_buf[ofs+1] << |
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8) + (dma_buf[ofs+2] << 16) + |
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(dma_buf[ofs+3] << 24); |
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else |
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span_len = dma_buf[ofs+3] + (dma_buf[ofs+2] << |
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8) + (dma_buf[ofs+1] << 16) + |
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(dma_buf[ofs+0] << 24); |
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ofs += 4; |
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if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
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span_src = dma_buf[ofs+0] + (dma_buf[ofs+1] << |
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8) + (dma_buf[ofs+2] << 16) + |
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(dma_buf[ofs+3] << 24); |
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else |
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span_src = dma_buf[ofs+3] + (dma_buf[ofs+2] << |
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8) + (dma_buf[ofs+1] << 16) + |
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(dma_buf[ofs+0] << 24); |
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ofs += 4; |
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if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
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span_dst = dma_buf[ofs+0] + (dma_buf[ofs+1] << |
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8) + (dma_buf[ofs+2] << 16) + |
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(dma_buf[ofs+3] << 24); |
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else |
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span_dst = dma_buf[ofs+3] + (dma_buf[ofs+2] << |
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8) + (dma_buf[ofs+1] << 16) + |
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(dma_buf[ofs+0] << 24); |
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ofs += 4; |
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span_len >>= 3; |
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span_dst >>= 3; |
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span_src >>= 3; |
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if (span_len > PX_XSIZE) |
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span_len = PX_XSIZE; |
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/* debug(" span %i: len=%i src=%i dst=%i\n", |
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spannr, span_len, span_src, span_dst); */ |
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memmove(d->vfb_data->framebuffer + span_dst * |
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PX_XSIZE * bytesperpixel, d->vfb_data->framebuffer |
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+ span_src * PX_XSIZE * bytesperpixel, span_len * |
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bytesperpixel); |
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d->vfb_data->update_x1 = 0; d->vfb_data->update_x2 = |
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PX_XSIZE-1; |
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dpavlin |
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if ((int32_t)span_dst < d->vfb_data->update_y1) |
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dpavlin |
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d->vfb_data->update_y1 = span_dst; |
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dpavlin |
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if ((int32_t)span_dst > d->vfb_data->update_y2) |
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dpavlin |
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d->vfb_data->update_y2 = span_dst; |
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dpavlin |
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if ((int32_t)span_src < d->vfb_data->update_y1) |
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dpavlin |
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d->vfb_data->update_y1 = span_src; |
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dpavlin |
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if ((int32_t)span_src > d->vfb_data->update_y2) |
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dpavlin |
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d->vfb_data->update_y2 = span_src; |
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} |
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} |
338 |
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339 |
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/* NetBSD and Ultrix erasecols/eraserows */ |
340 |
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if (cmdword == 0x411) { |
341 |
dpavlin |
22 |
uint32_t v1, v2, attr; |
342 |
|
|
int32_t lw; |
343 |
dpavlin |
4 |
int x,y,x2,y2; |
344 |
|
|
int fb_y; |
345 |
|
|
int bg_r, bg_g, bg_b; |
346 |
|
|
unsigned char pixels[PX_XSIZE * 3]; |
347 |
|
|
|
348 |
|
|
lw = px_readword(cpu, dma_buf, 16); |
349 |
|
|
attr = px_readword(cpu, dma_buf, 20); |
350 |
|
|
v1 = px_readword(cpu, dma_buf, 24); |
351 |
|
|
v2 = px_readword(cpu, dma_buf, 28); |
352 |
|
|
#if 0 |
353 |
|
|
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
354 |
|
|
lw = dma_buf[16] + (dma_buf[17] << 8) + |
355 |
|
|
(dma_buf[18] << 16) + (dma_buf[19] << 24); |
356 |
|
|
else |
357 |
|
|
lw = dma_buf[19] + (dma_buf[18] << 8) + |
358 |
|
|
(dma_buf[17] << 16) + (dma_buf[16] << 24); |
359 |
|
|
|
360 |
|
|
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
361 |
|
|
v1 = dma_buf[24] + (dma_buf[25] << 8) + |
362 |
|
|
(dma_buf[26] << 16) + (dma_buf[27] << 24); |
363 |
|
|
else |
364 |
|
|
v1 = dma_buf[27] + (dma_buf[26] << 8) + |
365 |
|
|
(dma_buf[25] << 16) + (dma_buf[24] << 24); |
366 |
|
|
|
367 |
|
|
if (cpu->byte_order == EMUL_LITTLE_ENDIAN) |
368 |
|
|
v2 = dma_buf[28] + (dma_buf[29] << 8) + |
369 |
|
|
(dma_buf[30] << 16) + (dma_buf[31] << 24); |
370 |
|
|
else |
371 |
|
|
v2 = dma_buf[31] + (dma_buf[30] << 8) + |
372 |
|
|
(dma_buf[29] << 16) + (dma_buf[28] << 24); |
373 |
|
|
#endif |
374 |
|
|
bg_r = (attr >> 16) & 255; |
375 |
|
|
bg_g = (attr >> 8) & 255; |
376 |
|
|
bg_b = attr & 255; |
377 |
|
|
if (bg_r == 0) |
378 |
|
|
bg_r = bg_g = bg_b = 0; |
379 |
|
|
else |
380 |
|
|
if (bg_r == 7) |
381 |
|
|
bg_r = bg_g = bg_b = 192; |
382 |
|
|
else |
383 |
|
|
bg_r = bg_g = bg_b = 255; |
384 |
|
|
|
385 |
|
|
v1 -= lw; |
386 |
|
|
v2 -= lw; |
387 |
|
|
|
388 |
|
|
x = (v1 >> 19) & 2047; |
389 |
|
|
y = (v1 >> 3) & 1023; |
390 |
|
|
x2 = (v2 >> 19) & 2047; |
391 |
|
|
y2 = (v2 >> 3) & 1023; |
392 |
|
|
|
393 |
|
|
lw = (lw + 1) >> 2; |
394 |
|
|
|
395 |
|
|
if (x2 - x > PX_XSIZE) |
396 |
|
|
x2 = PX_XSIZE; |
397 |
|
|
|
398 |
|
|
#ifdef PX_DEBUG |
399 |
|
|
debug("[ px: clear/fill: v1 = 0x%08x v2 = 0x%08x " |
400 |
|
|
"lw=%i x=%i y=%i x2=%i y2=%i ]\n", (int)v1, (int)v2, |
401 |
|
|
lw, x,y, x2,y2); |
402 |
|
|
#endif |
403 |
|
|
if (bytesperpixel == 3) { |
404 |
|
|
int xi; |
405 |
|
|
for (xi=0; xi<x2-x; xi++) { |
406 |
|
|
/* TODO: rgb order? */ |
407 |
|
|
pixels[xi*3 + 0] = bg_r; |
408 |
|
|
pixels[xi*3 + 1] = bg_g; |
409 |
|
|
pixels[xi*3 + 2] = bg_b; |
410 |
|
|
} |
411 |
|
|
} else |
412 |
|
|
memset(pixels, attr, (x2 - x) * bytesperpixel); |
413 |
|
|
|
414 |
|
|
if (x < d->vfb_data->update_x1) |
415 |
|
|
d->vfb_data->update_x1 = x; |
416 |
|
|
if (x2 > d->vfb_data->update_x2) |
417 |
|
|
d->vfb_data->update_x2 = x2; |
418 |
|
|
|
419 |
|
|
for (fb_y=y; fb_y < y2 + lw; fb_y ++) { |
420 |
|
|
memcpy(d->vfb_data->framebuffer + (fb_y * PX_XSIZE + x) |
421 |
|
|
* bytesperpixel, pixels, (x2-x)*bytesperpixel); |
422 |
|
|
|
423 |
|
|
if (fb_y < d->vfb_data->update_y1) |
424 |
|
|
d->vfb_data->update_y1 = fb_y; |
425 |
|
|
if (fb_y > d->vfb_data->update_y2) |
426 |
|
|
d->vfb_data->update_y2 = fb_y; |
427 |
|
|
} |
428 |
|
|
} |
429 |
|
|
|
430 |
|
|
/* NetBSD and Ultrix putchar */ |
431 |
|
|
if (cmdword == 0xa21) { |
432 |
|
|
/* Ugly test code: */ |
433 |
|
|
unsigned char pixels[16 * 3]; |
434 |
|
|
int pixels_len = 16; |
435 |
|
|
uint32_t v1, v2, fgcolor, bgcolor; |
436 |
|
|
int x, y, x2,y2, i, maxi; |
437 |
|
|
int xbit; |
438 |
|
|
int suby; |
439 |
|
|
int fg_r, fg_g, fg_b; |
440 |
|
|
int bg_r, bg_g, bg_b; |
441 |
|
|
|
442 |
|
|
v1 = px_readword(cpu, dma_buf, 52); |
443 |
|
|
v2 = px_readword(cpu, dma_buf, 56); |
444 |
|
|
fgcolor = px_readword(cpu, dma_buf, 16 * 4); |
445 |
|
|
bgcolor = px_readword(cpu, dma_buf, 29 * 4); |
446 |
|
|
|
447 |
|
|
/* |
448 |
|
|
* TODO: Which one is r, which one is g, and which one is b? |
449 |
|
|
* TODO 2: Use the BT459 palette, these values are hardcoded |
450 |
|
|
* for NetBSD and Ultrix grayscale only. |
451 |
|
|
*/ |
452 |
|
|
fg_r = (fgcolor >> 16) & 255; |
453 |
|
|
fg_g = (fgcolor >> 8) & 255; |
454 |
|
|
fg_b = fgcolor & 255; |
455 |
|
|
if (fg_r == 0) |
456 |
|
|
fg_r = fg_g = fg_b = 0; |
457 |
|
|
else |
458 |
|
|
if (fg_r == 7) |
459 |
|
|
fg_r = fg_g = fg_b = 192; |
460 |
|
|
else |
461 |
|
|
fg_r = fg_g = fg_b = 255; |
462 |
|
|
|
463 |
|
|
bg_r = (bgcolor >> 16) & 255; |
464 |
|
|
bg_g = (bgcolor >> 8) & 255; |
465 |
|
|
bg_b = bgcolor & 255; |
466 |
|
|
if (bg_r == 0) |
467 |
|
|
bg_r = bg_g = bg_b = 0; |
468 |
|
|
else |
469 |
|
|
if (bg_r == 7) |
470 |
|
|
bg_r = bg_g = bg_b = 192; |
471 |
|
|
else |
472 |
|
|
bg_r = bg_g = bg_b = 255; |
473 |
|
|
|
474 |
|
|
x = (v1 >> 19) & 2047; |
475 |
|
|
y = ((v1 - 63) >> 3) & 1023; |
476 |
|
|
x2 = (v2 >> 19) & 2047; |
477 |
|
|
y2 = ((v2 - 63) >> 3) & 1023; |
478 |
|
|
|
479 |
|
|
#ifdef PX_DEBUG |
480 |
|
|
debug("[ px putchar: v1 = 0x%08x v2 = 0x%08x x=%i y=%i ]\n", |
481 |
|
|
(int)v1, (int)v2, x,y, x2,y2); |
482 |
|
|
#endif |
483 |
|
|
x %= PX_XSIZE; |
484 |
|
|
y %= PX_YSIZE; |
485 |
|
|
x2 %= PX_XSIZE; |
486 |
|
|
y2 %= PX_YSIZE; |
487 |
|
|
|
488 |
|
|
pixels_len = x2 - x; |
489 |
|
|
|
490 |
|
|
suby = 0; |
491 |
|
|
maxi = 12; |
492 |
|
|
maxi = 33; |
493 |
|
|
|
494 |
|
|
for (i=4; i<maxi; i++) { |
495 |
|
|
int j; |
496 |
|
|
|
497 |
|
|
if (i == 12) |
498 |
|
|
i = 30; |
499 |
|
|
|
500 |
|
|
for (j=0; j<2; j++) { |
501 |
|
|
for (xbit = 0; xbit < 8; xbit ++) { |
502 |
|
|
if (bytesperpixel == 3) { |
503 |
|
|
/* 24-bit: */ |
504 |
|
|
/* TODO: Which one is r, |
505 |
|
|
which one is g, and b? */ |
506 |
|
|
pixels[xbit * 3 + 0] = |
507 |
|
|
(dma_buf[i*4 + j*2 + 0] & |
508 |
|
|
(1 << xbit))? fg_r : bg_r; |
509 |
|
|
pixels[xbit * 3 + 1] = |
510 |
|
|
(dma_buf[i*4 + j*2 + 0] & |
511 |
|
|
(1 << xbit))? fg_g : bg_g; |
512 |
|
|
pixels[xbit * 3 + 2] = |
513 |
|
|
(dma_buf[i*4 + j*2 + 0] & |
514 |
|
|
(1 << xbit))? fg_b : bg_b; |
515 |
|
|
pixels[(xbit + 8) * 3 + 0] = |
516 |
|
|
(dma_buf[i*4 + j*2 + 1] & |
517 |
|
|
(1 << xbit))? fg_r : bg_r; |
518 |
|
|
pixels[(xbit + 8) * 3 + 1] = |
519 |
|
|
(dma_buf[i*4 + j*2 + 1] & |
520 |
|
|
(1 << xbit))? fg_g : bg_g; |
521 |
|
|
pixels[(xbit + 8) * 3 + 2] = |
522 |
|
|
(dma_buf[i*4 + j*2 + 1] & |
523 |
|
|
(1 << xbit))? fg_b : bg_b; |
524 |
|
|
} else { |
525 |
|
|
/* 8-bit: */ |
526 |
|
|
pixels[xbit] = (dma_buf[i*4 + |
527 |
|
|
j*2 + 0] & (1 << xbit))? |
528 |
|
|
(fgcolor & 255) : |
529 |
|
|
(bgcolor & 255); |
530 |
|
|
pixels[xbit + 8] = (dma_buf[i*4 |
531 |
|
|
+ j*2 + 1] & (1 << xbit))? |
532 |
|
|
(fgcolor & 255) : |
533 |
|
|
(bgcolor & 255); |
534 |
|
|
} |
535 |
|
|
} |
536 |
|
|
|
537 |
|
|
memcpy(d->vfb_data->framebuffer + ((y+suby) |
538 |
|
|
* PX_XSIZE + x) * bytesperpixel, |
539 |
|
|
pixels, pixels_len * bytesperpixel); |
540 |
|
|
|
541 |
|
|
if (y+suby < d->vfb_data->update_y1) |
542 |
|
|
d->vfb_data->update_y1 = y+suby; |
543 |
|
|
if (y+suby > d->vfb_data->update_y2) |
544 |
|
|
d->vfb_data->update_y2 = y+suby; |
545 |
|
|
|
546 |
|
|
suby ++; |
547 |
|
|
} |
548 |
|
|
|
549 |
|
|
if (x < d->vfb_data->update_x1) |
550 |
|
|
d->vfb_data->update_x1 = x; |
551 |
|
|
if (x2 > d->vfb_data->update_x2) |
552 |
|
|
d->vfb_data->update_x2 = x2; |
553 |
|
|
} |
554 |
|
|
} |
555 |
|
|
} |
556 |
|
|
|
557 |
|
|
|
558 |
dpavlin |
22 |
DEVICE_ACCESS(px) |
559 |
dpavlin |
4 |
{ |
560 |
|
|
uint64_t idata = 0, odata = 0; |
561 |
|
|
struct px_data *d = extra; |
562 |
dpavlin |
22 |
size_t i; |
563 |
dpavlin |
4 |
|
564 |
dpavlin |
18 |
if (writeflag == MEM_WRITE) |
565 |
|
|
idata = memory_readmax64(cpu, data, len); |
566 |
dpavlin |
4 |
|
567 |
|
|
if (relative_addr < 0x0c0000) { |
568 |
|
|
/* |
569 |
|
|
* DMA poll: a read from this address should start a DMA |
570 |
|
|
* transfer, and return 1 in odata while the DMA is in |
571 |
|
|
* progress (STAMP_BUSY), and then 0 (STAMP_OK) once we're |
572 |
|
|
* done. |
573 |
|
|
* |
574 |
|
|
* According to NetBSD's pxreg.h, the following formula gets |
575 |
|
|
* us from system address to DMA address: (v is the system |
576 |
|
|
* address) |
577 |
|
|
* |
578 |
|
|
* dma_addr = ( ( ((v & ~0x7fff) << 3) | |
579 |
|
|
* (v & 0x7fff) ) & 0x1ffff800) >> 9; |
580 |
|
|
* |
581 |
|
|
* Hopefully, this is a good enough reversal of that formula: |
582 |
|
|
* |
583 |
|
|
* sys_addr = ((dma_addr << 9) & 0x7800) + |
584 |
|
|
* ((dma_addr << 6) & 0xffff8000); |
585 |
|
|
* |
586 |
|
|
* If the board type is "PX" then the system address is an |
587 |
|
|
* address in host memory. Otherwise, it is relative to |
588 |
|
|
* 0x200000 (the i860's memory space on the board). |
589 |
|
|
*/ |
590 |
|
|
uint32_t sys_addr; /* system address for DMA transfers */ |
591 |
|
|
sys_addr = ((relative_addr << 9) & 0x7800) + |
592 |
|
|
((relative_addr << 6) & 0xffff8000); |
593 |
|
|
|
594 |
|
|
/* |
595 |
|
|
* If the system address is sane enough, then start a DMA |
596 |
|
|
* transfer: (for the "PX" board type, don't allow obviously |
597 |
|
|
* too-low physical addresses) |
598 |
|
|
*/ |
599 |
|
|
if (sys_addr >= 0x4000 || d->type != DEV_PX_TYPE_PX) |
600 |
|
|
dev_px_dma(cpu, sys_addr, d); |
601 |
|
|
|
602 |
|
|
/* Pretend that it was always OK: */ |
603 |
|
|
odata = STAMP_OK; |
604 |
|
|
} |
605 |
|
|
|
606 |
|
|
/* N10 sram: */ |
607 |
|
|
if (relative_addr >= 0x200000 && relative_addr < 0x280000) { |
608 |
|
|
if (d->type == DEV_PX_TYPE_PX) |
609 |
|
|
fatal("WARNING: the vdac should be at this " |
610 |
|
|
"address. overlap problems?\n"); |
611 |
|
|
|
612 |
|
|
if (writeflag == MEM_WRITE) { |
613 |
|
|
for (i=0; i<len; i++) |
614 |
|
|
d->sram[relative_addr - 0x200000 + i] = data[i]; |
615 |
|
|
/* NOTE: this return here supresses debug output |
616 |
|
|
(which would be printed if we continue) */ |
617 |
|
|
return 1; |
618 |
|
|
} else { |
619 |
|
|
/* |
620 |
|
|
* Huh? Why have I commented out this? TODO |
621 |
|
|
*/ |
622 |
|
|
/* for (i=0; i<len; i++) |
623 |
|
|
data[i] = d->sram[relative_addr - 0x200000 |
624 |
|
|
+ i]; */ |
625 |
|
|
odata = 1; |
626 |
|
|
} |
627 |
|
|
} |
628 |
|
|
|
629 |
|
|
/* TODO: Most of these aren't implemented yet. */ |
630 |
|
|
|
631 |
|
|
switch (relative_addr) { |
632 |
dpavlin |
42 |
|
633 |
dpavlin |
4 |
case 0x180008: /* hsync */ |
634 |
|
|
if (writeflag==MEM_READ) { |
635 |
|
|
debug("[ px: read from hsync: 0x%08llx ]\n", |
636 |
|
|
(long long)odata); |
637 |
|
|
} else { |
638 |
|
|
debug("[ px: write to hsync: 0x%08llx ]\n", |
639 |
|
|
(long long)idata); |
640 |
|
|
} |
641 |
|
|
break; |
642 |
dpavlin |
42 |
|
643 |
dpavlin |
4 |
case 0x18000c: /* hsync2 */ |
644 |
|
|
if (writeflag==MEM_READ) { |
645 |
|
|
debug("[ px: read from hsync2: 0x%08llx ]\n", |
646 |
|
|
(long long)odata); |
647 |
|
|
} else { |
648 |
|
|
debug("[ px: write to hsync2: 0x%08llx ]\n", |
649 |
|
|
(long long)idata); |
650 |
|
|
} |
651 |
|
|
break; |
652 |
dpavlin |
42 |
|
653 |
dpavlin |
4 |
case 0x180010: /* hblank */ |
654 |
|
|
if (writeflag==MEM_READ) { |
655 |
|
|
debug("[ px: read from hblank: 0x%08llx ]\n", |
656 |
|
|
(long long)odata); |
657 |
|
|
} else { |
658 |
|
|
debug("[ px: write to hblank: 0x%08llx ]\n", |
659 |
|
|
(long long)idata); |
660 |
|
|
} |
661 |
|
|
break; |
662 |
dpavlin |
42 |
|
663 |
dpavlin |
4 |
case 0x180014: /* vsync */ |
664 |
|
|
if (writeflag==MEM_READ) { |
665 |
|
|
debug("[ px: read from vsync: 0x%08llx ]\n", |
666 |
|
|
(long long)odata); |
667 |
|
|
} else { |
668 |
|
|
debug("[ px: write to vsync: 0x%08llx ]\n", |
669 |
|
|
(long long)idata); |
670 |
|
|
} |
671 |
|
|
break; |
672 |
dpavlin |
42 |
|
673 |
dpavlin |
4 |
case 0x180018: /* vblank */ |
674 |
|
|
if (writeflag==MEM_READ) { |
675 |
|
|
debug("[ px: read from vblank: 0x%08llx ]\n", |
676 |
|
|
(long long)odata); |
677 |
|
|
} else { |
678 |
|
|
debug("[ px: write to vblank: 0x%08llx ]\n", |
679 |
|
|
(long long)idata); |
680 |
|
|
} |
681 |
|
|
break; |
682 |
dpavlin |
42 |
|
683 |
dpavlin |
4 |
case 0x180020: /* ipdvint */ |
684 |
|
|
if (writeflag==MEM_READ) { |
685 |
|
|
odata = d->intr; |
686 |
|
|
|
687 |
|
|
/* TODO: how do interrupts work on the pixelstamp boards? */ |
688 |
|
|
odata = random(); |
689 |
|
|
|
690 |
|
|
debug("[ px: read from ipdvint: 0x%08llx ]\n", |
691 |
|
|
(long long)odata); |
692 |
|
|
} else { |
693 |
|
|
d->intr = idata; |
694 |
|
|
if (idata & STIC_INT_E_WE) |
695 |
|
|
d->intr &= ~STIC_INT_E; |
696 |
|
|
if (idata & STIC_INT_V_WE) |
697 |
|
|
d->intr &= ~STIC_INT_V; |
698 |
|
|
if (idata & STIC_INT_P_WE) |
699 |
|
|
d->intr &= ~STIC_INT_P; |
700 |
|
|
debug("[ px: write to ipdvint: 0x%08llx ]\n", |
701 |
|
|
(long long)idata); |
702 |
|
|
} |
703 |
|
|
break; |
704 |
dpavlin |
42 |
|
705 |
dpavlin |
4 |
case 0x180028: /* sticsr */ |
706 |
|
|
if (writeflag==MEM_READ) { |
707 |
|
|
debug("[ px: read from sticsr: 0x%08llx ]\n", |
708 |
|
|
(long long)odata); |
709 |
|
|
} else { |
710 |
|
|
debug("[ px: write to sticsr: 0x%08llx ]\n", |
711 |
|
|
(long long)idata); |
712 |
|
|
} |
713 |
|
|
break; |
714 |
dpavlin |
42 |
|
715 |
dpavlin |
4 |
case 0x180038: /* buscsr */ |
716 |
|
|
if (writeflag==MEM_READ) { |
717 |
|
|
debug("[ px: read from buscsr: 0x%08llx ]\n", |
718 |
|
|
(long long)odata); |
719 |
|
|
} else { |
720 |
|
|
debug("[ px: write to buscsr: 0x%08llx ]\n", |
721 |
|
|
(long long)idata); |
722 |
|
|
} |
723 |
|
|
break; |
724 |
dpavlin |
42 |
|
725 |
dpavlin |
4 |
case 0x18003c: /* modcl */ |
726 |
|
|
if (writeflag==MEM_READ) { |
727 |
|
|
odata = (d->type << 12) + (d->xconfig << 11) + |
728 |
|
|
(d->yconfig << 9); |
729 |
|
|
debug("[ px: read from modcl: 0x%llx ]\n", |
730 |
|
|
(long long)odata); |
731 |
|
|
} else { |
732 |
|
|
debug("[ px: write to modcl: 0x%llx ]\n", |
733 |
|
|
(long long)idata); |
734 |
|
|
} |
735 |
|
|
break; |
736 |
dpavlin |
42 |
|
737 |
dpavlin |
4 |
default: |
738 |
|
|
if (writeflag==MEM_READ) { |
739 |
|
|
debug("[ px: read from addr 0x%x: 0x%llx ]\n", |
740 |
|
|
(int)relative_addr, (long long)odata); |
741 |
|
|
} else { |
742 |
|
|
debug("[ px: write to addr 0x%x: 0x%llx ]\n", |
743 |
|
|
(int)relative_addr, (long long)idata); |
744 |
|
|
} |
745 |
|
|
} |
746 |
|
|
|
747 |
|
|
if (writeflag == MEM_READ) |
748 |
|
|
memory_writemax64(cpu, data, len, odata); |
749 |
|
|
|
750 |
|
|
return 1; |
751 |
|
|
} |
752 |
|
|
|
753 |
|
|
|
754 |
|
|
void dev_px_init(struct machine *machine, struct memory *mem, |
755 |
dpavlin |
34 |
uint64_t baseaddr, int px_type, char *irq_path) |
756 |
dpavlin |
4 |
{ |
757 |
|
|
struct px_data *d; |
758 |
|
|
|
759 |
dpavlin |
42 |
CHECK_ALLOCATION(d = malloc(sizeof(struct px_data))); |
760 |
dpavlin |
4 |
memset(d, 0, sizeof(struct px_data)); |
761 |
|
|
|
762 |
|
|
d->type = px_type; |
763 |
|
|
|
764 |
dpavlin |
34 |
INTERRUPT_CONNECT(irq_path, d->irq); |
765 |
|
|
|
766 |
dpavlin |
4 |
d->xconfig = d->yconfig = 0; /* 4x1 */ |
767 |
|
|
|
768 |
|
|
d->bitdepth = 24; |
769 |
|
|
d->px_name = "(invalid)"; |
770 |
|
|
|
771 |
|
|
switch (d->type) { |
772 |
|
|
case DEV_PX_TYPE_PX: |
773 |
|
|
d->bitdepth = 8; |
774 |
|
|
d->px_name = "PX"; |
775 |
|
|
break; |
776 |
|
|
case DEV_PX_TYPE_PXG: |
777 |
|
|
d->bitdepth = 8; |
778 |
|
|
d->px_name = "PXG"; |
779 |
|
|
break; |
780 |
|
|
case DEV_PX_TYPE_PXGPLUS: |
781 |
|
|
d->px_name = "PXG+"; |
782 |
|
|
break; |
783 |
|
|
case DEV_PX_TYPE_PXGPLUSTURBO: |
784 |
|
|
d->px_name = "PXG+ TURBO"; |
785 |
|
|
d->xconfig = d->yconfig = 1; /* 5x2 */ |
786 |
|
|
break; |
787 |
|
|
default: |
788 |
|
|
fatal("dev_px_init(): unimplemented px_type\n"); |
789 |
|
|
} |
790 |
|
|
|
791 |
dpavlin |
12 |
d->fb_mem = memory_new(PX_XSIZE * PX_YSIZE * d->bitdepth / 8, |
792 |
|
|
machine->arch); |
793 |
dpavlin |
4 |
if (d->fb_mem == NULL) { |
794 |
|
|
fprintf(stderr, "dev_px_init(): out of memory (1)\n"); |
795 |
|
|
exit(1); |
796 |
|
|
} |
797 |
|
|
|
798 |
|
|
d->vfb_data = dev_fb_init(machine, d->fb_mem, 0, VFB_GENERIC, |
799 |
dpavlin |
12 |
PX_XSIZE, PX_YSIZE, PX_XSIZE, PX_YSIZE, d->bitdepth, d->px_name); |
800 |
dpavlin |
4 |
if (d->vfb_data == NULL) { |
801 |
|
|
fprintf(stderr, "dev_px_init(): out of memory (2)\n"); |
802 |
|
|
exit(2); |
803 |
|
|
} |
804 |
|
|
|
805 |
|
|
switch (d->type) { |
806 |
|
|
case DEV_PX_TYPE_PX: |
807 |
|
|
dev_bt459_init(machine, mem, baseaddr + 0x200000, 0, |
808 |
dpavlin |
34 |
d->vfb_data, 8, irq_path, BT459_PX); |
809 |
dpavlin |
4 |
break; |
810 |
|
|
case DEV_PX_TYPE_PXG: |
811 |
|
|
case DEV_PX_TYPE_PXGPLUS: |
812 |
|
|
case DEV_PX_TYPE_PXGPLUSTURBO: |
813 |
|
|
dev_bt459_init(machine, mem, baseaddr + 0x300000, 0, |
814 |
dpavlin |
34 |
d->vfb_data, d->bitdepth, irq_path, BT459_PX); |
815 |
dpavlin |
4 |
break; |
816 |
|
|
default: |
817 |
|
|
fatal("dev_px_init(): unimplemented px_type\n"); |
818 |
|
|
} |
819 |
|
|
|
820 |
|
|
memory_device_register(mem, "px", baseaddr, DEV_PX_LENGTH, |
821 |
dpavlin |
20 |
dev_px_access, d, DM_DEFAULT, NULL); |
822 |
dpavlin |
42 |
machine_add_tickfunction(machine, dev_px_tick, d, 14); |
823 |
dpavlin |
4 |
} |
824 |
|
|
|