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Annotation of qemu/hw/etraxfs_ser.c, revision 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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