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/* |
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* Copyright (C) 2006-2007 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_iq80321_7seg.c,v 1.4 2007/06/15 19:11:15 debug Exp $ |
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* |
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* COMMENT: IQ80321 LED device |
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* |
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* Should work with NetBSD's iq80321_7seg.c. |
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* |
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* TODO: Graphical output of LED lines? |
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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 "device.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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struct iq80321_7seg_data { |
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uint8_t msb, lsb; |
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}; |
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|
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|
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DEVICE_ACCESS(iq80321_7seg) |
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{ |
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struct iq80321_7seg_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 0: if (writeflag == MEM_READ) |
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odata = d->msb; |
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else { |
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d->msb = idata; |
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debug("[ iq80321_7seg: setting MSB to 0x%02x ]\n", |
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(int)idata); |
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} |
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break; |
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|
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case 0x10000: |
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if (writeflag == MEM_READ) |
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odata = d->lsb; |
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else { |
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d->lsb = idata; |
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debug("[ iq80321_7seg: setting LSB to 0x%02x ]\n", |
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(int)idata); |
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} |
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break; |
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|
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default:if (writeflag == MEM_READ) { |
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fatal("[ iq80321_7seg: read from 0x%x ]\n", |
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(int)relative_addr); |
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} else { |
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fatal("[ iq80321_7seg: write to 0x%x: 0x%llx ]\n", |
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(int)relative_addr, (long long)idata); |
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} |
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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(iq80321_7seg) |
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{ |
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struct iq80321_7seg_data *d; |
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|
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CHECK_ALLOCATION(d = malloc(sizeof(struct iq80321_7seg_data))); |
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memset(d, 0, sizeof(struct iq80321_7seg_data)); |
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|
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/* 0xfe840000 and 0xfe850000 */ |
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memory_device_register(devinit->machine->memory, devinit->name, |
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devinit->addr, 0x10004, dev_iq80321_7seg_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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|
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