2 * This file is part of the Palacios Virtual Machine Monitor developed
3 * by the V3VEE Project with funding from the United States National
4 * Science Foundation and the Department of Energy.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
10 * Copyright (c) 2008, Zheng Cui <cuizheng@cs.unm.edu>
11 * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
12 * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
13 * All rights reserved.
15 * Author: Zheng Cui <cuizheng@cs.unm.edu>
17 * This is free software. You are permitted to use,
18 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
21 #include <devices/cdrom.h>
22 #include <palacios/vmm.h>
25 #define Ramdisk_Print_CD(_f, _a...) PrintTrace("cdrom.c(%d) "_f, __LINE__, ## _a)
27 #define Ramdisk_Print_CD(_f, _a...)
32 ulong_t g_ramdiskImage;
33 ulong_t s_ramdiskSize;
36 void cdrom_init(struct cdrom_interface * cdrom)
39 Ramdisk_Print_CD("[cdrom_init]\n");
40 V3_ASSERT(g_ramdiskImage);
41 cdrom->fd = g_ramdiskImage;
42 PrintDebug("CDIMAGE located at: %x\n", cdrom->fd);
43 cdrom->capacity_B = s_ramdiskSize;
50 * Load CD-ROM. Returns false if CD is not ready.
54 rd_bool cdrom_insert(struct cdrom_interface * cdrom, char *dev /*= NULL*/)
56 Ramdisk_Print_CD("[cdrom_insert]\n");
61 * Logically eject the CD.
64 void cdrom_eject(struct cdrom_interface *cdrom)
66 Ramdisk_Print_CD("[cdrom_eject]\n");
71 * Read CD TOC. Returns false if start track is out of bounds.
74 rd_bool cdrom_read_toc(struct cdrom_interface *cdrom, uint8_t* buf, int* length, rd_bool msf, int start_track)
76 Ramdisk_Print_CD("[cdrom_read_toc]\n");
81 * Return CD-ROM capacity (in 2048 byte frames)
84 uint32_t cdrom_capacity(struct cdrom_interface *cdrom)
86 Ramdisk_Print_CD("[cdrom_capacity] s_ramdiskSize = %d\n", cdrom->capacity_B);
88 if (cdrom->capacity_B % 2048) {
89 Ramdisk_Print_CD("\t\t capacity in LBA is %d\n", cdrom->capacity_B/2048 + 1);
90 return cdrom->capacity_B/2048 + 1;
92 Ramdisk_Print_CD("\t\t capacity in LBA is %d\n", cdrom->capacity_B/2048);
93 return cdrom->capacity_B/2048;
102 * Read a single block from the CD
105 void cdrom_read_block(struct cdrom_interface *cdrom, uint8_t* buf, int lba)// __attribute__(regparm(2));
110 Ramdisk_Print_CD("[cdrom_read_block] lba = %d (cdrom_image_start=%x)\n", lba, cdrom->fd);
111 memcpy(buf, (uint8_t *)(cdrom->fd + lba * 2048), 2048);
112 PrintDebug("Returning from read block\n");
117 * Start (spin up) the CD.
120 int cdrom_start(struct cdrom_interface *cdrom)
122 Ramdisk_Print_CD("[cdrom_start]\n");
127 void init_cdrom(struct cdrom_interface *cdrom)
129 V3_ASSERT(cdrom != NULL);
131 cdrom->ops.init = &cdrom_init;
132 cdrom->ops.insert_cdrom = &cdrom_insert;
133 cdrom->ops.eject_cdrom = &cdrom_eject;
134 cdrom->ops.read_toc = &cdrom_read_toc;
135 cdrom->ops.capacity = &cdrom_capacity;
136 cdrom->ops.read_block = &cdrom_read_block;
137 cdrom->ops.start_cdrom = &cdrom_start;