void processRAMDiskCommand(char ** argPtr, const char * cmd)
{
char * ptr = *argPtr;
char param[1024];
getNextArg(&ptr, param);
if (strcmp(cmd, "m") == 0)
{
mountRAMDisk(param);
sleep(2);
}
else if (strcmp(cmd, "u") == 0)
{
umountRAMDisk();
sleep(2);
}
else if (strcmp(cmd, "e") == 0)
{
setRAMDiskBTHook(true);
sleep(2);
}
else if (strcmp(cmd, "d") == 0)
{
setRAMDiskBTHook(false);
sleep(2);
}
else if (strcmp(cmd, "i") == 0)
{
setActiveDisplayPage(1);
clearScreenRows(0, 24);
setCursorPosition(0, 0, 1);
showInfoRAMDisk();
//Azi: check Chazi on these line breaks here***
printf("\n\nPress any key to continue.\n");
getchar();
setActiveDisplayPage(0);
}
else
{
setActiveDisplayPage(1);
clearScreenRows(0, 24);
setCursorPosition(0, 0, 1);
printf("\nusage:\n");
printf("\n?rd i - display ramdisk information");
printf("\n?rd m <filename> - mount ramdisk image\n?rd u - unmount ramdisk image");
printf("\n?rd e - enable bt(0,0) alias\n?rd d - disable bt(0,0) alias");
printf("\n\nPress any key to continue.\n");
getchar();
setActiveDisplayPage(0);
}
}
int mountRAMDisk(const char * param)
{
int fh = 0, ramDiskSize;
int error = 0;
// Get file handle for ramdisk file.
fh = open(param, 0);
if (fh != -1)
{
printf("\nreading ramdisk image: %s", param);
ramDiskSize = file_size(fh);
if (ramDiskSize > 0)
{
// Unmount previously mounted image if exists.
umountRAMDisk();
// Read new ramdisk image contents into PREBOOT_DATA area.
if (read(fh, (char *)PREBOOT_DATA, ramDiskSize) != ramDiskSize) error = -1;
}
else error = -1;
close(fh);
}
else error = -1;
if (error == 0)
{
// Save filename in gRAMDiskFile to display information.
strcpy(gRAMDiskFile, param);
// Set gMI as well for the multiboot ramdisk driver hook.
gMI = gRAMDiskMI = malloc(sizeof(multiboot_info));
struct multiboot_module * ramdisk_module = malloc(sizeof(multiboot_module));
// Fill in multiboot info and module structures.
if (gRAMDiskMI != NULL && ramdisk_module != NULL)
{
gRAMDiskMI->mi_mods_count = 1;
gRAMDiskMI->mi_mods_addr = (uint32_t)ramdisk_module;
ramdisk_module->mm_mod_start = PREBOOT_DATA;
ramdisk_module->mm_mod_end = PREBOOT_DATA + ramDiskSize;
// Set ramdisk driver hooks.
p_get_ramdisk_info = &multiboot_get_ramdisk_info;
p_ramdiskReadBytes = &multibootRamdiskReadBytes;
int partCount; // unused
// Save bvr of the mounted image.
gRAMDiskVolume = diskScanBootVolumes(0x100, &partCount);
if(gRAMDiskVolume == NULL)
{
umountRAMDisk();
printf("\nRamdisk contains no partitions.");
}
else
{
char dirSpec[128];
// Reading ramdisk configuration.
strcpy(dirSpec, RAMDISKCONFIG_FILENAME);
if (loadConfigFile(dirSpec, &bootInfo->ramdiskConfig) == 0)
{
getBoolForKey("BTAlias", &gRAMDiskBTAliased, &bootInfo->ramdiskConfig);
}
else
{
printf("\nno ramdisk config...\n");
}
printf("\nmounting: done");
}
}
}
return error;
}
