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Annotation of qemu/hw/etraxfs_ser.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * QEMU ETRAX System Emulator
                      3:  *
                      4:  * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
                      5:  *
                      6:  * Permission is hereby granted, free of charge, to any person obtaining a copy
                      7:  * of this software and associated documentation files (the "Software"), to deal
                      8:  * in the Software without restriction, including without limitation the rights
                      9:  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
                     10:  * copies of the Software, and to permit persons to whom the Software is
                     11:  * furnished to do so, subject to the following conditions:
                     12:  *
                     13:  * The above copyright notice and this permission notice shall be included in
                     14:  * all copies or substantial portions of the Software.
                     15:  *
                     16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
                     17:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
                     19:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
                     20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
                     21:  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
                     22:  * THE SOFTWARE.
                     23:  */
                     24: 
                     25: #include <stdio.h>
                     26: #include <ctype.h>
                     27: #include "hw.h"
                     28: 
                     29: #define RW_TR_DMA_EN 0xb0026004
                     30: #define RW_DOUT 0xb002601c
                     31: #define RW_STAT_DIN 0xb0026020
                     32: #define R_STAT_DIN 0xb0026024
                     33: 
                     34: static uint32_t ser_readb (void *opaque, target_phys_addr_t addr)
                     35: {
                     36:        CPUState *env = opaque;
                     37:        uint32_t r = 0;
                     38:        printf ("%s %x pc=%x\n", __func__, addr, env->pc);
                     39:        return r;
                     40: }
                     41: static uint32_t ser_readw (void *opaque, target_phys_addr_t addr)
                     42: {
                     43:        CPUState *env = opaque;
                     44:        uint32_t r = 0;
                     45:        printf ("%s %x pc=%x\n", __func__, addr, env->pc);
                     46:        return r;
                     47: }
                     48: 
                     49: static uint32_t ser_readl (void *opaque, target_phys_addr_t addr)
                     50: {
                     51:        CPUState *env = opaque;
                     52:        uint32_t r = 0;
                     53: 
                     54:        switch (addr)
                     55:        {
                     56:                case RW_TR_DMA_EN:
                     57:                        break;
                     58:                case R_STAT_DIN:
                     59:                        r |= 1 << 24; /* set tr_rdy.  */
                     60:                        r |= 1 << 22; /* set tr_idle.  */
                     61:                        break;
                     62: 
                     63:                default:
                     64:                        printf ("%s %x p=%x\n", __func__, addr, env->pc);
                     65:                        break;
                     66:        }
                     67:        return r;
                     68: }
                     69: 
                     70: static void
                     71: ser_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)
                     72: {
                     73:        CPUState *env = opaque;
                     74:        printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
                     75: }
                     76: static void
                     77: ser_writew (void *opaque, target_phys_addr_t addr, uint32_t value)
                     78: {
                     79:        CPUState *env = opaque;
                     80:        printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
                     81: }
                     82: static void
                     83: ser_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
                     84: {
                     85:        CPUState *env = opaque;
                     86: 
                     87:        switch (addr)
                     88:        {
                     89:                case RW_TR_DMA_EN:
                     90:                        break;
                     91:                case RW_DOUT:
                     92:                        if (isprint(value) || isspace(value))
                     93:                                putchar(value);
                     94:                        else
                     95:                                putchar('.');
                     96:                        break;
                     97:                default:
                     98:                        printf ("%s %x %x pc=%x\n",
                     99:                                __func__, addr, value, env->pc);
                    100:                        break;
                    101:        }
                    102: }
                    103: 
                    104: static CPUReadMemoryFunc *ser_read[] = {
                    105:     &ser_readb,
                    106:     &ser_readw,
                    107:     &ser_readl,
                    108: };
                    109: 
                    110: static CPUWriteMemoryFunc *ser_write[] = {
                    111:     &ser_writeb,
                    112:     &ser_writew,
                    113:     &ser_writel,
                    114: };
                    115: 
                    116: void etraxfs_ser_init(CPUState *env, qemu_irq *irqs)
                    117: {
                    118:        int ser_regs;
                    119: 
                    120:        ser_regs = cpu_register_io_memory(0, ser_read, ser_write, env);
                    121:        cpu_register_physical_memory (0xb0026000, 0x3c, ser_regs);
                    122: }

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