sbpcd

《嵌入式系统设计与实例开发实验教材二源码》Linux内核移植与编译实验

void display(int size,unsigned char *buffer)
{
	k=0;
	getchar();
	for (i=0;i<(size+1)/16;i++)
	{
		printf("%4d:",i*16);
		for (j=0;j<16;j++)
		{
			printf(" %02X",buffer[i*16+j]);
		}
		printf("  ");
		for (j=0;j<16;j++)
		{
			if (isalnum(buffer[i*16+j])) 
				printf("%c",buffer[i*16+j]);
			else
				printf(".");
		}
		printf("\n"); 
		k++;
		if (k>=20)
		{
			printf("press ENTER to continue\n");
			getchar();
			k=0;
		}
	} 
} 

main(int argc, char *argv[])
{
	printf("\nTesting tool for a CDROM driver's audio functions V0.1\n");
	printf("(C) 1995 Eberhard Moenkeberg <[e-mail]>\n");
	printf("initializing...\n");
	
	rc=init_drive(default_device);
	if (rc<0) printf("could not open %s (rc=%d).\n",default_device,rc);
	help();
	while (1)
	{
		printf("Give a one-letter command (h = help): ");
		scanf("%s",command);
		command[1]=0;
		switch (command[0])
		{
		case 'D':
			printf("device name (f.e. /dev/sbpcd3): ? ");
			scanf("%s",&dev);
			close(drive);
			rc=init_drive(dev);
			if (rc<0) printf("could not open %s (rc %d).\n",dev,rc);
			break;
		case 'e':
			rc=ioctl(drive,CDROMEJECT);
			if (rc<0) printf("CDROMEJECT: rc=%d.\n",rc);
			break;
		case 'p':
			rc=ioctl(drive,CDROMPAUSE);
			if (rc<0) printf("CDROMPAUSE: rc=%d.\n",rc);
			break;
		case 'r':
			rc=ioctl(drive,CDROMRESUME);
			if (rc<0) printf("CDROMRESUME: rc=%d.\n",rc);
			break;
		case 's':
			rc=ioctl(drive,CDROMSTOP);
			if (rc<0) printf("CDROMSTOP: rc=%d.\n",rc);
			break;
		case 'S':
			rc=ioctl(drive,CDROMSTART);
			if (rc<0) printf("CDROMSTART: rc=%d.\n",rc);
			break;
		case 't':
			rc=ioctl(drive,CDROMREADTOCHDR,&tocHdr);
			if (rc<0)
			{
				printf("CDROMREADTOCHDR: rc=%d.\n",rc);
				break;
			}
			first=tocHdr.cdth_trk0;
			last= tocHdr.cdth_trk1;
			if ((first==0)||(first>last))
			{
				printf ("--got invalid TOC data.\n");
			}
			else
			{
				printf("--enter track number(first=%d, last=%d): ",first,last);
				scanf("%d",&i1);
				ti.cdti_trk0=i1;
				if (ti.cdti_trk0<first) ti.cdti_trk0=first;
				if (ti.cdti_trk0>last) ti.cdti_trk0=last;
				ti.cdti_ind0=0;
				ti.cdti_trk1=last;
				ti.cdti_ind1=0;
				rc=ioctl(drive,CDROMSTOP);
				rc=ioctl(drive,CDROMPLAYTRKIND,&ti);
				if (rc<0) printf("CDROMPLAYTRKIND: rc=%d.\n",rc);
			}
			break;
		case 'n':
			rc=ioctl(drive,CDROMSTOP);
			if (++ti.cdti_trk0>last) ti.cdti_trk0=last;
			ti.cdti_ind0=0;
			ti.cdti_trk1=last;
			ti.cdti_ind1=0;
			rc=ioctl(drive,CDROMPLAYTRKIND,&ti);
			if (rc<0) printf("CDROMPLAYTRKIND: rc=%d.\n",rc);
			break;
		case 'l':
			rc=ioctl(drive,CDROMSTOP);
			if (--ti.cdti_trk0<first) ti.cdti_trk0=first;
			ti.cdti_ind0=0;
			ti.cdti_trk1=last;
			ti.cdti_ind1=0;
			rc=ioctl(drive,CDROMPLAYTRKIND,&ti);
			if (rc<0) printf("CDROMPLAYTRKIND: rc=%d.\n",rc);
			break;
		case 'c':
			subchnl.cdsc_format=CDROM_MSF;
			rc=ioctl(drive,CDROMSUBCHNL,&subchnl);
			if (rc<0) printf("CDROMSUBCHNL: rc=%d.\n",rc);
			else
			{
				printf("AudioStatus:%s  Track:%d  Mode:%d  MSF=%02d:%02d:%02d\n",
				       subchnl.cdsc_audiostatus==CDROM_AUDIO_PLAY ? "PLAYING":"NOT PLAYING",
				       subchnl.cdsc_trk,subchnl.cdsc_adr, 
				       subchnl.cdsc_absaddr.msf.minute,
				       subchnl.cdsc_absaddr.msf.second,
				       subchnl.cdsc_absaddr.msf.frame);
			}
			break;              
		case 'i':
			printf("Track No.: ");
			scanf("%d",&i1);
			entry.cdte_track=i1;
			if (entry.cdte_track<first) entry.cdte_track=first;
			if (entry.cdte_track>last)  entry.cdte_track=last;
			entry.cdte_format=CDROM_MSF;
			rc=ioctl(drive,CDROMREADTOCENTRY,&entry);
			if (rc<0) printf("CDROMREADTOCENTRY: rc=%d.\n",rc);
			else
			{
				printf("Mode %d Track, starts at %02d:%02d:%02d\n",
				       entry.cdte_adr,
				       entry.cdte_addr.msf.minute,
				       entry.cdte_addr.msf.second,
				       entry.cdte_addr.msf.frame);
			}
			break;
		case 'a':
			printf("Address (min:sec:frm)  ");
			scanf("%d:%d:%d",&i1,&i2,&i3);
			msf.cdmsf_min0=i1;
			msf.cdmsf_sec0=i2;
			msf.cdmsf_frame0=i3;
			if (msf.cdmsf_sec0>59) msf.cdmsf_sec0=59;
			if (msf.cdmsf_frame0>74) msf.cdmsf_frame0=74;
			lba2msf(TocEntry[last+1].cdte_addr.lba-1,&msf.cdmsf_min1);
			rc=ioctl(drive,CDROMSTOP);
			rc=ioctl(drive,CDROMPLAYMSF,&msf);
			if (rc<0) printf("CDROMPLAYMSF: rc=%d.\n",rc);
			break;
		case 'V':
			rc=ioctl(drive,CDROMVOLREAD,&volctrl);
			if (rc<0) printf("CDROMVOLCTRL: rc=%d.\n",rc);
			printf("Volume: channel 0 (left) %d, channel 1 (right) %d\n",volctrl.channel0,volctrl.channel1);
			break;  
		case 'R':
			rc=ioctl(drive,CDROMRESET);
			if (rc<0) printf("CDROMRESET: rc=%d.\n",rc);
			break;
		case 'B': /* set the driver's (?) read ahead value */
			printf("enter read-ahead size: ? ");
			scanf("%d",&i);
			rc=ioctl(drive,BLKRASET,i);
			if (rc<0) printf("BLKRASET: rc=%d.\n",rc);
			break;
#ifdef AZT_PRIVATE_IOCTLS /*not supported by every CDROM driver*/
		case 'd':
			printf("Address (min:sec:frm)  ");
			scanf("%d:%d:%d",&i1,&i2,&i3);
			azt.msf.cdmsf_min0=i1;
			azt.msf.cdmsf_sec0=i2;
			azt.msf.cdmsf_frame0=i3;
			if (azt.msf.cdmsf_sec0>59) azt.msf.cdmsf_sec0=59;
			if (azt.msf.cdmsf_frame0>74) azt.msf.cdmsf_frame0=74;
			rc=ioctl(drive,CDROMREADMODE1,&azt.msf);
			if (rc<0) printf("CDROMREADMODE1: rc=%d.\n",rc);
			else display(CD_FRAMESIZE,azt.buf);
			break;
		case 'w':
			printf("Address (min:sec:frame)  ");
			scanf("%d:%d:%d",&i1,&i2,&i3);
			azt.msf.cdmsf_min0=i1;
			azt.msf.cdmsf_sec0=i2;
			azt.msf.cdmsf_frame0=i3;
			if (azt.msf.cdmsf_sec0>59) azt.msf.cdmsf_sec0=59;
			if (azt.msf.cdmsf_frame0>74) azt.msf.cdmsf_frame0=74;
			rc=ioctl(drive,CDROMREADMODE2,&azt.msf);
			if (rc<0) printf("CDROMREADMODE2: rc=%d.\n",rc);
			else display(CD_FRAMESIZE_RAW,azt.buf); /* currently only 2336 */
			break;  
#endif
		case 'v':
			printf("--Channel 0 (Left)  (0-255): ");
			scanf("%d",&i1);
			volctrl.channel0=i1;
			printf("--Channel 1 (Right) (0-255): ");
			scanf("%d",&i1);
			volctrl.channel1=i1;
			volctrl.channel2=0;
			volctrl.channel3=0;
			rc=ioctl(drive,CDROMVOLCTRL,&volctrl);
			if (rc<0) printf("CDROMVOLCTRL: rc=%d.\n",rc);
			break;  
		case 'q':
			close(drive);
			exit(0);
		case 'h':
			help();
			break;
		case 'T': /* display TOC entry - without involving the driver */
			scanf("%d",&i);
			if ((i<hdr.cdth_trk0)||(i>hdr.cdth_trk1))
				printf("invalid track number.\n");
			else
				printf("TocEntry %02d: adr=%01X ctrl=%01X msf=%02d:%02d:%02d mode=%02X\n",
				       TocEntry[i].cdte_track,
				       TocEntry[i].cdte_adr,
				       TocEntry[i].cdte_ctrl,
				       TocEntry[i].cdte_addr.msf.minute,
				       TocEntry[i].cdte_addr.msf.second,
				       TocEntry[i].cdte_addr.msf.frame,
				       TocEntry[i].cdte_datamode);
			break;
		case 'A': /* read audio data into file */
			printf("Address (min:sec:frm) ? ");
			scanf("%d:%d:%d",&i1,&i2,&i3);
			read_audio.addr.msf.minute=i1;
			read_audio.addr.msf.second=i2;
			read_audio.addr.msf.frame=i3;
			read_audio.addr_format=CDROM_MSF;
			printf("# of frames ? ");
			scanf("%d",&i1);
			read_audio.nframes=i1;
			k=read_audio.nframes*CD_FRAMESIZE_RAW;
			read_audio.buf=malloc(k);
			if (read_audio.buf==NULL)
			{
				printf("can't malloc %d bytes.\n",k);
				break;
			}
			sprintf(filename,"audio_%02d%02d%02d_%02d.%02d\0",
				read_audio.addr.msf.minute,
				read_audio.addr.msf.second,
				read_audio.addr.msf.frame,
				read_audio.nframes,
				++sequence);
			datafile=creat(filename, 0755);
			if (datafile<0)
			{
				printf("can't open datafile %s.\n",filename);
				break;
			}
			rc=ioctl(drive,CDROMREADAUDIO,&read_audio);
			if (rc!=0)
			{
				printf("CDROMREADAUDIO: rc=%d.\n",rc);
			}
			else
			{
				rc=write(datafile,&read_audio.buf,k);
				if (rc!=k) printf("datafile I/O error (%d).\n",rc);
			}
			close(datafile);
			break;
		case 'X': /* set EJECT_SW (0: disable, 1: enable auto-ejecting) */
			scanf("%d",&i);
			rc=ioctl(drive,CDROMEJECT_SW,i);
			if (rc!=0)
				printf("CDROMEJECT_SW: rc=%d.\n",rc);
			else
				printf("EJECT_SW set to %d\n",i);
			break;
		case 'M': /* get the multisession redirection info */
			ms_info.addr_format=CDROM_LBA;
			rc=ioctl(drive,CDROMMULTISESSION,&ms_info);
			if (rc!=0)
			{
				printf("CDROMMULTISESSION(lba): rc=%d.\n",rc);
			}
			else
			{
				if (ms_info.xa_flag) printf("MultiSession offset (lba): %d (0x%06X)\n",ms_info.addr.lba,ms_info.addr.lba);
				else
				{
					printf("this CD is not an XA disk.\n");
					break;
				}
			}
			ms_info.addr_format=CDROM_MSF;
			rc=ioctl(drive,CDROMMULTISESSION,&ms_info);
			if (rc!=0)
			{
				printf("CDROMMULTISESSION(msf): rc=%d.\n",rc);
			}
			else
			{
				if (ms_info.xa_flag)
					printf("MultiSession offset (msf): %02d:%02d:%02d (0x%02X%02X%02X)\n",
					       ms_info.addr.msf.minute,
					       ms_info.addr.msf.second,
					       ms_info.addr.msf.frame,
					       ms_info.addr.msf.minute,
					       ms_info.addr.msf.second,
					       ms_info.addr.msf.frame);
				else printf("this CD is not an XA disk.\n");
			}
			break;
#ifdef SBP_PRIVATE_IOCTLS
		case 'Y': /* set the driver's message level */
#if 0 /* not implemented yet */
			printf("enter switch name (f.e. DBG_CMD): ");
			scanf("%s",&dbg_switch);
			j=get_dbg_num(dbg_switch);
#else
			printf("enter DDIOCSDBG switch number: ");
			scanf("%d",&j);
#endif
			printf("enter 0 for \"off\", 1 for \"on\": ");
			scanf("%d",&i);
			if (i==0) j|=0x80;
			printf("calling \"ioctl(drive,DDIOCSDBG,%d)\"\n",j);
			rc=ioctl(drive,DDIOCSDBG,j);
			printf("DDIOCSDBG: rc=%d.\n",rc);
			break;
		case 'Z': /* set the audio buffer size */
			printf("# frames wanted: ? ");
			scanf("%d",&j);
			rc=ioctl(drive,CDROMAUDIOBUFSIZ,j);
			printf("%d frames granted.\n",rc);
			break;
#endif SBP_PRIVATE_IOCTLS
		default:
			printf("unknown command: \"%s\".\n",command);
			break;
		}
	}
}
/*==========================================================================*/