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/* |
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* Copyright (C) 2006 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_fbctrl.c,v 1.4 2006/07/09 07:53:33 debug Exp $ |
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* |
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* A "framebuffer control" device. It can be used to manipulate the |
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* framebuffer device in testmachines. |
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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 "cpu.h" |
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#include "cpu_mips.h" |
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#include "device.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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|
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#include "testmachine/dev_fb.h" |
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|
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|
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struct fbctrl_data { |
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struct vfb_data *vfb_data; |
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int current_port; |
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int port[DEV_FBCTRL_NPORTS]; |
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}; |
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|
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|
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/* |
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* fbctrl_command(): |
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* |
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* Execute a framebuffer control command. |
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*/ |
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static void fbctrl_command(struct cpu *cpu, struct fbctrl_data *d) |
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{ |
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int cmd = d->port[DEV_FBCTRL_PORT_COMMAND]; |
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int x1, y1, i; |
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struct machine *machine; |
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|
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switch (cmd) { |
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|
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case DEV_FBCTRL_COMMAND_NOP: |
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break; |
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|
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case DEV_FBCTRL_COMMAND_SET_RESOLUTION: |
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/* |
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* Change the framebuffer resolution to X1 x Y1 pixels. |
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*/ |
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x1 = d->port[DEV_FBCTRL_PORT_X1]; |
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y1 = d->port[DEV_FBCTRL_PORT_Y1]; |
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debug("[ dev_fbctrl: changing resolution to %i,%i ]\n", x1, y1); |
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|
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dev_fb_resize(d->vfb_data, x1, y1); |
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|
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/* Remember to invalidate all translations for anyone |
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who might have used the old framebuffer: */ |
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machine = cpu->machine; |
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for (i=0; i<machine->ncpus; i++) |
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machine->cpus[i]->invalidate_translation_caches( |
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machine->cpus[i], 0, INVALIDATE_ALL); |
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break; |
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|
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case DEV_FBCTRL_COMMAND_GET_RESOLUTION: |
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d->port[DEV_FBCTRL_PORT_X1] = d->vfb_data->xsize; |
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d->port[DEV_FBCTRL_PORT_Y1] = d->vfb_data->ysize; |
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break; |
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|
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/* TODO: Block copy and fill. */ |
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|
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default:fatal("fbctrl_command: Unimplemented command %i.\n", cmd); |
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exit(1); |
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} |
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} |
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|
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|
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DEVICE_ACCESS(fbctrl) |
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{ |
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struct fbctrl_data *d = extra; |
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uint64_t idata = 0, odata = 0; |
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|
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if (writeflag == MEM_WRITE) |
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idata = memory_readmax64(cpu, data, len); |
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|
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switch (relative_addr) { |
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|
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case DEV_FBCTRL_PORT: |
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if (writeflag == MEM_READ) |
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odata = d->current_port; |
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else { |
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d->current_port = idata; |
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if (idata >= DEV_FBCTRL_NPORTS) |
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fatal("[ WARNING: fbctrl port number is out" |
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" of range! ]\n"); |
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} |
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break; |
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|
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case DEV_FBCTRL_DATA: |
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if (d->current_port < 0 || d->current_port |
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>= DEV_FBCTRL_NPORTS) { |
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fatal("[ fbctrl port number is out of range! ]\n"); |
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exit(1); |
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} |
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|
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if (writeflag == MEM_READ) |
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odata = d->port[d->current_port]; |
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else { |
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d->port[d->current_port] = idata; |
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if (d->current_port == DEV_FBCTRL_PORT_COMMAND) |
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fbctrl_command(cpu, d); |
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} |
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|
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break; |
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|
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default: |
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fatal("[ dev_fbctrl: unimplemented relative addr 0x%x ]\n", |
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(int)relative_addr); |
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exit(1); |
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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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return 1; |
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} |
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|
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|
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DEVINIT(fbctrl) |
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{ |
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struct fbctrl_data *d; |
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|
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d = malloc(sizeof(struct fbctrl_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 fbctrl_data)); |
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|
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d->vfb_data = dev_fb_init(devinit->machine, devinit->machine->memory, |
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DEV_FB_ADDRESS, VFB_GENERIC, 640, 480, 640, DEV_FBCTRL_MAXY(640), |
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24, "generic"); |
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|
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memory_device_register(devinit->machine->memory, devinit->name, |
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devinit->addr, DEV_FBCTRL_LENGTH, dev_fbctrl_access, d, |
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DM_DEFAULT, NULL); |
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|
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return 1; |
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} |
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|