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Annotation of qemu/hw/mips_pica61.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * QEMU Acer Pica Machine support
        !             3:  *
        !             4:  * Copyright (c) 2007 Herv� Poussineau
        !             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 "hw.h"
        !            26: #include "mips.h"
        !            27: #include "isa.h"
        !            28: #include "pc.h"
        !            29: #include "fdc.h"
        !            30: #include "sysemu.h"
        !            31: #include "boards.h"
        !            32: 
        !            33: #ifdef TARGET_WORDS_BIGENDIAN
        !            34: #define BIOS_FILENAME "mips_bios.bin"
        !            35: #else
        !            36: #define BIOS_FILENAME "mipsel_bios.bin"
        !            37: #endif
        !            38: 
        !            39: #ifdef TARGET_MIPS64
        !            40: #define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffULL)
        !            41: #else
        !            42: #define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffU)
        !            43: #endif
        !            44: 
        !            45: #define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
        !            46: 
        !            47: #define MAX_IDE_BUS 2
        !            48: #define MAX_FD 2
        !            49: 
        !            50: static const int ide_iobase[2] = { 0x1f0, 0x170 };
        !            51: static const int ide_iobase2[2] = { 0x3f6, 0x376 };
        !            52: static const int ide_irq[2] = { 14, 15 };
        !            53: 
        !            54: static uint32_t serial_base[MAX_SERIAL_PORTS] = { 0x80006000, 0x80007000 };
        !            55: static int serial_irq[MAX_SERIAL_PORTS] = { 8, 9 };
        !            56: 
        !            57: extern FILE *logfile;
        !            58: 
        !            59: static void main_cpu_reset(void *opaque)
        !            60: {
        !            61:     CPUState *env = opaque;
        !            62:     cpu_reset(env);
        !            63: }
        !            64: 
        !            65: static
        !            66: void mips_pica61_init (int ram_size, int vga_ram_size,
        !            67:                        const char *boot_device, DisplayState *ds,
        !            68:                     const char *kernel_filename, const char *kernel_cmdline,
        !            69:                     const char *initrd_filename, const char *cpu_model)
        !            70: {
        !            71:     char buf[1024];
        !            72:     unsigned long bios_offset;
        !            73:     int bios_size;
        !            74:     CPUState *env;
        !            75:     int i;
        !            76:     int available_ram;
        !            77:     qemu_irq *i8259;
        !            78:     int index;
        !            79:     BlockDriverState *fd[MAX_FD];
        !            80: 
        !            81:     /* init CPUs */
        !            82:     if (cpu_model == NULL) {
        !            83: #ifdef TARGET_MIPS64
        !            84:         cpu_model = "R4000";
        !            85: #else
        !            86:         /* FIXME: All wrong, this maybe should be R3000 for the older PICAs. */
        !            87:         cpu_model = "24Kf";
        !            88: #endif
        !            89:     }
        !            90:     env = cpu_init(cpu_model);
        !            91:     if (!env) {
        !            92:         fprintf(stderr, "Unable to find CPU definition\n");
        !            93:         exit(1);
        !            94:     }
        !            95:     register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
        !            96:     qemu_register_reset(main_cpu_reset, env);
        !            97: 
        !            98:     /* allocate RAM (limited to 256 MB) */
        !            99:     if (ram_size < 256 * 1024 * 1024)
        !           100:         available_ram = ram_size;
        !           101:     else
        !           102:         available_ram = 256 * 1024 * 1024;
        !           103:     cpu_register_physical_memory(0, available_ram, IO_MEM_RAM);
        !           104: 
        !           105:     /* load a BIOS image */
        !           106:     bios_offset = ram_size + vga_ram_size;
        !           107:     if (bios_name == NULL)
        !           108:         bios_name = BIOS_FILENAME;
        !           109:     snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
        !           110:     bios_size = load_image(buf, phys_ram_base + bios_offset);
        !           111:     if ((bios_size <= 0) || (bios_size > BIOS_SIZE)) {
        !           112:         /* fatal */
        !           113:         fprintf(stderr, "qemu: Error, could not load MIPS bios '%s'\n",
        !           114:                 buf);
        !           115:         exit(1);
        !           116:     }
        !           117:     cpu_register_physical_memory(0x1fc00000,
        !           118:                                      BIOS_SIZE, bios_offset | IO_MEM_ROM);
        !           119: 
        !           120:     /* Device map
        !           121:      *
        !           122:      * addr 0xe0004000: mc146818
        !           123:      * addr 0xe0005000 intr 6: ps2 keyboard
        !           124:      * addr 0xe0005000 intr 7: ps2 mouse
        !           125:      * addr 0xe0006000 intr 8: ns16550a,
        !           126:      * addr 0xe0007000 intr 9: ns16550a
        !           127:      * isa_io_base 0xe2000000 isa_mem_base 0xe3000000
        !           128:      */
        !           129: 
        !           130:     /* Init CPU internal devices */
        !           131:     cpu_mips_irq_init_cpu(env);
        !           132:     cpu_mips_clock_init(env);
        !           133:     cpu_mips_irqctrl_init();
        !           134: 
        !           135:     /* Register 64 KB of ISA IO space at 0x10000000 */
        !           136:     isa_mmio_init(0x10000000, 0x00010000);
        !           137:     isa_mem_base = 0x11000000;
        !           138: 
        !           139:     /* PC style IRQ (i8259/i8254) and DMA (i8257) */
        !           140:     /* The PIC is attached to the MIPS CPU INT0 pin */
        !           141:     i8259 = i8259_init(env->irq[2]);
        !           142:     rtc_mm_init(0x80004070, 1, i8259[14]);
        !           143:     pit_init(0x40, 0);
        !           144: 
        !           145:     /* Keyboard (i8042) */
        !           146:     i8042_mm_init(i8259[6], i8259[7], 0x80005060, 0);
        !           147: 
        !           148:     /* IDE controller */
        !           149: 
        !           150:     if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
        !           151:         fprintf(stderr, "qemu: too many IDE bus\n");
        !           152:         exit(1);
        !           153:     }
        !           154: 
        !           155:     for(i = 0; i < MAX_IDE_BUS; i++) {
        !           156:         int hd0, hd1;
        !           157:         hd0 = drive_get_index(IF_IDE, i, 0);
        !           158:         hd1 = drive_get_index(IF_IDE, i, 1);
        !           159:         isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
        !           160:                      hd0 == -1 ? NULL : drives_table[hd0].bdrv,
        !           161:                      hd1 == -1 ? NULL : drives_table[hd1].bdrv);
        !           162:     }
        !           163: 
        !           164:     /* Network controller */
        !           165:     /* FIXME: missing NS SONIC DP83932 */
        !           166: 
        !           167:     /* SCSI adapter */
        !           168:     /* FIXME: missing NCR 53C94 */
        !           169: 
        !           170:     /* ISA devices (floppy, serial, parallel) */
        !           171: 
        !           172:     for (i = 0; i < MAX_FD; i++) {
        !           173:         index = drive_get_index(IF_FLOPPY, 0, i);
        !           174:         if (index == -1)
        !           175:             fd[i] = NULL;
        !           176:         else
        !           177:             fd[i] = drives_table[index].bdrv;
        !           178:     }
        !           179:     fdctrl_init(i8259[1], 1, 1, 0x80003000, fd);
        !           180:     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
        !           181:         if (serial_hds[i]) {
        !           182:             serial_mm_init(serial_base[i], 0, i8259[serial_irq[i]], serial_hds[i], 1);
        !           183:         }
        !           184:     }
        !           185:     /* Parallel port */
        !           186:     if (parallel_hds[0]) parallel_mm_init(0x80008000, 0, i8259[1], parallel_hds[0]);
        !           187: 
        !           188:     /* Sound card */
        !           189:     /* FIXME: missing Jazz sound, IRQ 18 */
        !           190: 
        !           191:     /* LED indicator */
        !           192:     /* FIXME: missing LED indicator */
        !           193: 
        !           194:     /* NVRAM */
        !           195:     ds1225y_init(0x80009000, "nvram");
        !           196: 
        !           197:     /* Video card */
        !           198:     /* FIXME: This card is not the real one which was in the original PICA,
        !           199:      * but let's do with what Qemu currenly emulates... */
        !           200:     isa_vga_mm_init(ds, phys_ram_base + ram_size, ram_size, vga_ram_size,
        !           201:                     0x40000000, 0x60000000, 0);
        !           202: 
        !           203:     /* LED indicator */
        !           204:     jazz_led_init(ds, 0x8000f000);
        !           205: }
        !           206: 
        !           207: QEMUMachine mips_pica61_machine = {
        !           208:     "pica61",
        !           209:     "Acer Pica 61",
        !           210:     mips_pica61_init,
        !           211: };

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