--- /dev/null
+/*
+ * Zheng Cui
+ * cuizheng@cs.unm.edu
+ * July 2008
+ */
+
+
+#include <devices/cdrom.h>
+#include <palacios/vmm.h>
+
+#ifdef DEBUG_RAMDISK
+#define Ramdisk_Print_CD(_f, _a...) PrintTrace("cdrom.c(%d) "_f, __LINE__, ## _a)
+#else
+#define Ramdisk_Print_CD(_f, _a...)
+#endif
+
+
+extern ulong_t g_ramdiskImage;
+extern ulong_t s_ramdiskSize;
+
+static
+void cdrom_init(struct cdrom_interface *cdrom)
+{
+
+ Ramdisk_Print_CD("[cdrom_init]\n");
+ V3_ASSERT(g_ramdiskImage);
+ cdrom->fd = g_ramdiskImage;
+ cdrom->capacity_B = s_ramdiskSize;
+ //FIXME:lba
+ cdrom->lba = 1;
+ return;
+}
+
+/*
+ * Load CD-ROM. Returns false if CD is not ready.
+ */
+
+static
+rd_bool cdrom_insert(struct cdrom_interface *cdrom, char *dev /*= NULL*/)
+{
+ Ramdisk_Print_CD("[cdrom_insert]\n");
+ return 1;
+}
+
+/*
+ * Logically eject the CD.
+ */
+static
+void cdrom_eject(struct cdrom_interface *cdrom)
+{
+ Ramdisk_Print_CD("[cdrom_eject]\n");
+ return;
+}
+
+/*
+ * Read CD TOC. Returns false if start track is out of bounds.
+ */
+static
+rd_bool cdrom_read_toc(struct cdrom_interface *cdrom, uint8* buf, int* length, rd_bool msf, int start_track)
+{
+ Ramdisk_Print_CD("[cdrom_read_toc]\n");
+ return 1;
+}
+
+/*
+ * Return CD-ROM capacity (in 2048 byte frames)
+ */
+static
+uint32 cdrom_capacity(struct cdrom_interface *cdrom)
+{
+ Ramdisk_Print_CD("[cdrom_capacity] s_ramdiskSize = %d\n", cdrom->capacity_B);
+ if (cdrom->lba) {
+ if (cdrom->capacity_B % 2048) {
+ Ramdisk_Print_CD("\t\t capacity in LBA is %d\n", cdrom->capacity_B/2048 + 1);
+ return cdrom->capacity_B/2048 + 1;
+ } else {
+ Ramdisk_Print_CD("\t\t capacity in LBA is %d\n", cdrom->capacity_B/2048);
+ return cdrom->capacity_B/2048;
+ }
+ } else {
+ //FIXME CHS mode
+ return 0;
+ }
+}
+
+/*
+ * Read a single block from the CD
+ */
+static
+void cdrom_read_block(struct cdrom_interface *cdrom, uint8* buf, int lba)// __attribute__(regparm(2));
+{
+
+ V3_ASSERT(lba != 0);
+
+ Ramdisk_Print_CD("[cdrom_read_block] lba = %d\n", lba);
+ memcpy(buf, (uint8 *)(cdrom->fd + lba*2048), 2048);
+ return;
+}
+
+/*
+ * Start (spin up) the CD.
+ */
+static
+int cdrom_start(struct cdrom_interface *cdrom)
+{
+ Ramdisk_Print_CD("[cdrom_start]\n");
+ return 1;
+}
+
+
+void init_cdrom(struct cdrom_interface *cdrom)
+{
+ V3_ASSERT(cdrom != NULL);
+
+ cdrom->ops.init = &cdrom_init;
+ cdrom->ops.insert_cdrom = &cdrom_insert;
+ cdrom->ops.eject_cdrom = &cdrom_eject;
+ cdrom->ops.read_toc = &cdrom_read_toc;
+ cdrom->ops.capacity = &cdrom_capacity;
+ cdrom->ops.read_block = &cdrom_read_block;
+ cdrom->ops.start_cdrom = &cdrom_start;
+
+ return;
+}
+
