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Diffstat (limited to 'apps/plugins/sdl/src/cdrom/osf/SDL_syscdrom.c')
-rw-r--r--apps/plugins/sdl/src/cdrom/osf/SDL_syscdrom.c444
1 files changed, 444 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/cdrom/osf/SDL_syscdrom.c b/apps/plugins/sdl/src/cdrom/osf/SDL_syscdrom.c
new file mode 100644
index 0000000000..8478a7b4cf
--- /dev/null
+++ b/apps/plugins/sdl/src/cdrom/osf/SDL_syscdrom.c
@@ -0,0 +1,444 @@
+/*
+ Tru64 audio module for SDL (Simple DirectMedia Layer)
+ Copyright (C) 2003
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_CDROM_OSF
+
+/* Functions for system-level CD-ROM audio control */
+
+/* #define DEBUG_CDROM 1 */
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <io/cam/cdrom.h>
+#include <io/cam/rzdisk.h>
+#include <io/common/devgetinfo.h>
+
+#include "SDL_cdrom.h"
+#include "../SDL_syscdrom.h"
+
+/* The maximum number of CD-ROM drives we'll detect */
+#define MAX_DRIVES 16
+
+/* A list of available CD-ROM drives */
+static char *SDL_cdlist[MAX_DRIVES];
+static dev_t SDL_cdmode[MAX_DRIVES];
+
+/* The system-dependent CD control functions */
+static const char *SDL_SYS_CDName(int drive);
+static int SDL_SYS_CDOpen(int drive);
+static int SDL_SYS_CDGetTOC(SDL_CD *cdrom);
+static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position);
+static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length);
+static int SDL_SYS_CDPause(SDL_CD *cdrom);
+static int SDL_SYS_CDResume(SDL_CD *cdrom);
+static int SDL_SYS_CDStop(SDL_CD *cdrom);
+static int SDL_SYS_CDEject(SDL_CD *cdrom);
+static void SDL_SYS_CDClose(SDL_CD *cdrom);
+
+/* Check a drive to see if it is a CD-ROM */
+/* Caution!! Not tested. */
+static int CheckDrive(char *drive, struct stat *stbuf)
+{
+ int cdfd, is_cd = 0;
+ struct mode_sel_sns_params msp;
+ struct inquiry_info inq;
+
+#ifdef DEBUG_CDROM
+ char *devtype[] = {"Disk", "Tape", "Printer", "Processor", "WORM",
+ "CD-ROM", "Scanner", "Optical", "Changer", "Comm", "Unknown"};
+#endif
+
+ bzero(&msp, sizeof(msp));
+ bzero(&inq, sizeof(inq));
+
+ /* If it doesn't exist, return -1 */
+ if ( stat(drive, stbuf) < 0 ) {
+ return(-1);
+ }
+
+ if ( (cdfd = open(drive, (O_RDWR|O_NDELAY), 0)) >= 0 ) {
+ msp.msp_addr = (caddr_t) &inq;
+ msp.msp_pgcode = 0;
+ msp.msp_pgctrl = 0;
+ msp.msp_length = sizeof(inq);
+ msp.msp_setps = 0;
+
+ if ( ioctl(cdfd, SCSI_GET_INQUIRY_DATA, &msp) )
+ return (0);
+
+#ifdef DEBUG_CDROM
+ fprintf(stderr, "Device Type: %s\n", devtype[inq.perfdt]);
+ fprintf(stderr, "Vendor: %.8s\n", inq.vndrid);
+ fprintf(stderr, "Product: %.8s\n", inq.prodid);
+ fprintf(stderr, "Revision: %.8s\n", inq.revlvl);
+#endif
+ if ( inq.perfdt == DTYPE_RODIRECT )
+ is_cd = 1;
+ }
+
+ return(is_cd);
+}
+
+/* Add a CD-ROM drive to our list of valid drives */
+static void AddDrive(char *drive, struct stat *stbuf)
+{
+ int i;
+
+ if ( SDL_numcds < MAX_DRIVES ) {
+ /* Check to make sure it's not already in our list.
+ * This can happen when we see a drive via symbolic link.
+ *
+ */
+ for ( i=0; i<SDL_numcds; ++i ) {
+ if ( stbuf->st_rdev == SDL_cdmode[i] ) {
+#ifdef DEBUG_CDROM
+ fprintf(stderr, "Duplicate drive detected: %s == %s\n", drive, SDL_cdlist[i]);
+#endif
+ return;
+ }
+ }
+
+ /* Add this drive to our list */
+ i = SDL_numcds;
+ SDL_cdlist[i] = SDL_strdup(drive);
+ if ( SDL_cdlist[i] == NULL ) {
+ SDL_OutOfMemory();
+ return;
+ }
+ SDL_cdmode[i] = stbuf->st_rdev;
+ ++SDL_numcds;
+#ifdef DEBUG_CDROM
+ fprintf(stderr, "Added CD-ROM drive: %s\n", drive);
+#endif
+ }
+}
+
+int SDL_SYS_CDInit(void)
+{
+ /* checklist:
+ *
+ * Tru64 5.X (/dev/rdisk/cdrom?c)
+ * dir: /dev/rdisk, name: cdrom
+ *
+ * Digital UNIX 4.0X (/dev/rrz?c)
+ * dir: /dev, name: rrz
+ *
+ */
+ struct {
+ char *dir;
+ char *name;
+ } checklist[] = {
+ {"/dev/rdisk", "cdrom"},
+ {"/dev", "rrz"},
+ {NULL, NULL}};
+ char drive[32];
+ char *SDLcdrom;
+ int i, j, exists;
+ struct stat stbuf;
+
+ /* Fill in our driver capabilities */
+ SDL_CDcaps.Name = SDL_SYS_CDName;
+ SDL_CDcaps.Open = SDL_SYS_CDOpen;
+ SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
+ SDL_CDcaps.Status = SDL_SYS_CDStatus;
+ SDL_CDcaps.Play = SDL_SYS_CDPlay;
+ SDL_CDcaps.Pause = SDL_SYS_CDPause;
+ SDL_CDcaps.Resume = SDL_SYS_CDResume;
+ SDL_CDcaps.Stop = SDL_SYS_CDStop;
+ SDL_CDcaps.Eject = SDL_SYS_CDEject;
+ SDL_CDcaps.Close = SDL_SYS_CDClose;
+
+
+ /* Look in the environment for our CD-ROM drive list */
+ SDLcdrom = SDL_getenv("SDL_CDROM"); /* ':' separated list of devices */
+ if ( SDLcdrom != NULL ) {
+ char *cdpath, *delim;
+ size_t len = SDL_strlen(SDLcdrom)+1;
+ cdpath = SDL_stack_alloc(char, len);
+ if ( cdpath != NULL ) {
+ SDL_strlcpy(cdpath, SDLcdrom, len);
+ SDLcdrom = cdpath;
+ do {
+ delim = SDL_strchr(SDLcdrom, ':');
+ if ( delim ) {
+ *delim++ = '\0';
+ }
+ if ( CheckDrive(SDLcdrom, &stbuf) > 0 ) {
+ AddDrive(SDLcdrom, &stbuf);
+ }
+ if ( delim ) {
+ SDLcdrom = delim;
+ } else {
+ SDLcdrom = NULL;
+ }
+ } while ( SDLcdrom );
+ SDL_stack_free(cdpath);
+ }
+
+ /* If we found our drives, there's nothing left to do */
+ if ( SDL_numcds > 0 ) {
+ return(0);
+ }
+ }
+ /* Scan the system for CD-ROM drives */
+ for ( i = 0; checklist[i].dir; ++i) {
+ DIR *devdir;
+ struct dirent *devent;
+ int name_len;
+
+ devdir = opendir(checklist[i].dir);
+ if (devdir) {
+ name_len = SDL_strlen(checklist[i].name);
+ while (devent = readdir(devdir))
+ if (SDL_memcmp(checklist[i].name, devent->d_name, name_len) == 0)
+ if (devent->d_name[devent->d_namlen-1] == 'c') {
+ SDL_snprintf(drive, SDL_arraysize(drive), "%s/%s", checklist[i].dir, devent->d_name);
+#ifdef DEBUG_CDROM
+ fprintf(stderr, "Try to add drive: %s\n", drive);
+#endif
+ if ( CheckDrive(drive, &stbuf) > 0 )
+ AddDrive(drive, &stbuf);
+ }
+ closedir(devdir);
+ } else {
+#ifdef DEBUG_CDROM
+ fprintf(stderr, "cannot open dir: %s\n", checklist[i].dir);
+#endif
+ }
+ }
+ return (0);
+}
+
+static const char *SDL_SYS_CDName(int drive)
+{
+ return(SDL_cdlist[drive]);
+}
+
+static int SDL_SYS_CDOpen(int drive)
+{
+ /* O_RDWR: To use ioctl(fd, SCSI_STOP_UNIT) */
+ return(open(SDL_cdlist[drive], (O_RDWR|O_NDELAY), 0));
+}
+
+static int SDL_SYS_CDGetTOC(SDL_CD *cdrom)
+{
+ struct cd_toc toc;
+ struct cd_toc_header hdr;
+ struct cd_toc_entry *cdte;
+ int i;
+ int okay = 0;
+ if ( ioctl(cdrom->id, CDROM_TOC_HEADER, &hdr) ) {
+ fprintf(stderr,"ioctl error CDROM_TOC_HEADER\n");
+ return -1;
+ }
+ cdrom->numtracks = hdr.th_ending_track - hdr.th_starting_track + 1;
+ if ( cdrom->numtracks > SDL_MAX_TRACKS ) {
+ cdrom->numtracks = SDL_MAX_TRACKS;
+ }
+#ifdef DEBUG_CDROM
+ fprintf(stderr,"hdr.th_data_len1 = %d\n", hdr.th_data_len1);
+ fprintf(stderr,"hdr.th_data_len0 = %d\n", hdr.th_data_len0);
+ fprintf(stderr,"hdr.th_starting_track = %d\n", hdr.th_starting_track);
+ fprintf(stderr,"hdr.th_ending_track = %d\n", hdr.th_ending_track);
+ fprintf(stderr,"cdrom->numtracks = %d\n", cdrom->numtracks);
+#endif
+ toc.toc_address_format = CDROM_LBA_FORMAT;
+ toc.toc_starting_track = 0;
+ toc.toc_alloc_length = (hdr.th_data_len1 << 8) +
+ hdr.th_data_len0 + sizeof(hdr);
+ if ( (toc.toc_buffer = alloca(toc.toc_alloc_length)) == NULL) {
+ fprintf(stderr,"cannot allocate toc.toc_buffer\n");
+ return -1;
+ }
+
+ bzero (toc.toc_buffer, toc.toc_alloc_length);
+ if (ioctl(cdrom->id, CDROM_TOC_ENTRYS, &toc)) {
+ fprintf(stderr,"ioctl error CDROM_TOC_ENTRYS\n");
+ return -1;
+ }
+
+ cdte =(struct cd_toc_entry *) ((char *) toc.toc_buffer + sizeof(hdr));
+ for (i=0; i <= cdrom->numtracks; ++i) {
+ if (i == cdrom->numtracks ) {
+ cdrom->track[i].id = 0xAA;;
+ } else {
+ cdrom->track[i].id = hdr.th_starting_track + i;
+ }
+
+ cdrom->track[i].type =
+ cdte[i].te_control & CDROM_DATA_TRACK;
+ cdrom->track[i].offset =
+ cdte[i].te_absaddr.lba.addr3 << 24 |
+ cdte[i].te_absaddr.lba.addr2 << 16 |
+ cdte[i].te_absaddr.lba.addr1 << 8 |
+ cdte[i].te_absaddr.lba.addr0;
+ cdrom->track[i].length = 0;
+ if ( i > 0 ) {
+ cdrom->track[i - 1].length =
+ cdrom->track[i].offset -
+ cdrom->track[i - 1].offset;
+ }
+ }
+#ifdef DEBUG_CDROM
+ for (i = 0; i <= cdrom->numtracks; i++) {
+ fprintf(stderr,"toc_entry[%d].te_track_number = %d\n",
+ i,cdte[i].te_track_number);
+ fprintf(stderr,"cdrom->track[%d].id = %d\n", i,cdrom->track[i].id);
+ fprintf(stderr,"cdrom->track[%d].type = %x\n", i,cdrom->track[i].type);
+ fprintf(stderr,"cdrom->track[%d].offset = %d\n", i,cdrom->track[i].offset);
+ fprintf(stderr,"cdrom->track[%d].length = %d\n", i,cdrom->track[i].length);
+ }
+#endif
+ if ( i == (cdrom->numtracks+1) ) {
+ okay = 1;
+ }
+
+ return(okay ? 0 : -1);
+}
+
+/* Get CD-ROM status */
+static CDstatus SDL_SYS_CDStatus(SDL_CD *cdrom, int *position)
+{
+ CDstatus status;
+ struct cd_sub_channel sc;
+ struct cd_subc_channel_data scd;
+
+ sc.sch_address_format = CDROM_LBA_FORMAT;
+ sc.sch_data_format = CDROM_CURRENT_POSITION;
+ sc.sch_track_number = 0;
+ sc.sch_alloc_length = sizeof(scd);
+ sc.sch_buffer = (caddr_t)&scd;
+ if ( ioctl(cdrom->id, CDROM_READ_SUBCHANNEL, &sc) ) {
+ status = CD_ERROR;
+ fprintf(stderr,"ioctl error CDROM_READ_SUBCHANNEL \n");
+ } else {
+ switch (scd.scd_header.sh_audio_status) {
+ case AS_AUDIO_INVALID:
+ status = CD_STOPPED;
+ break;
+ case AS_PLAY_IN_PROGRESS:
+ status = CD_PLAYING;
+ break;
+ case AS_PLAY_PAUSED:
+ status = CD_PAUSED;
+ break;
+ case AS_PLAY_COMPLETED:
+ status = CD_STOPPED;
+ break;
+ case AS_PLAY_ERROR:
+ status = CD_ERROR;
+ break;
+ case AS_NO_STATUS:
+ status = CD_STOPPED;
+ break;
+ default:
+ status = CD_ERROR;
+ break;
+ }
+#ifdef DEBUG_CDROM
+ fprintf(stderr,"scd.scd_header.sh_audio_status = %x\n",
+ scd.scd_header.sh_audio_status);
+#endif
+ }
+ if (position) {
+ if (status == CD_PLAYING || (status == CD_PAUSED) ) {
+ *position =
+ scd.scd_position_data.scp_absaddr.lba.addr3 << 24 |
+ scd.scd_position_data.scp_absaddr.lba.addr2 << 16 |
+ scd.scd_position_data.scp_absaddr.lba.addr1 << 8 |
+ scd.scd_position_data.scp_absaddr.lba.addr0;
+ } else {
+ *position = 0;
+ }
+ }
+
+ return status;
+}
+
+/* Start play */
+static int SDL_SYS_CDPlay(SDL_CD *cdrom, int start, int length)
+{
+/*
+ * Play MSF
+ */
+ struct cd_play_audio_msf msf;
+ int end;
+
+ bzero(&msf, sizeof(msf));
+ end = start +length;
+ FRAMES_TO_MSF(start + 150, /* LBA = 4500*M + 75*S + F - 150 */
+ &msf.msf_starting_M_unit,
+ &msf.msf_starting_S_unit,
+ &msf.msf_starting_F_unit);
+ FRAMES_TO_MSF(end + 150, /* LBA = 4500*M + 75*S + F - 150 */
+ &msf.msf_ending_M_unit,
+ &msf.msf_ending_S_unit,
+ &msf.msf_ending_F_unit);
+
+ return(ioctl(cdrom->id, CDROM_PLAY_AUDIO_MSF, &msf));
+}
+
+/* Pause play */
+static int SDL_SYS_CDPause(SDL_CD *cdrom)
+{
+ return(ioctl(cdrom->id, CDROM_PAUSE_PLAY));
+}
+
+/* Resume play */
+static int SDL_SYS_CDResume(SDL_CD *cdrom)
+{
+ return(ioctl(cdrom->id, CDROM_RESUME_PLAY));
+}
+
+/* Stop play */
+static int SDL_SYS_CDStop(SDL_CD *cdrom)
+{
+ return(ioctl(cdrom->id, SCSI_STOP_UNIT));
+}
+
+/* Eject the CD-ROM */
+static int SDL_SYS_CDEject(SDL_CD *cdrom)
+{
+ return(ioctl(cdrom->id, CDROM_EJECT_CADDY));
+}
+
+/* Close the CD-ROM handle */
+static void SDL_SYS_CDClose(SDL_CD *cdrom)
+{
+ close(cdrom->id);
+}
+
+void SDL_SYS_CDQuit(void)
+{
+ int i;
+
+ if ( SDL_numcds > 0 ) {
+ for ( i=0; i<SDL_numcds; ++i ) {
+ SDL_free(SDL_cdlist[i]);
+ }
+ SDL_numcds = 0;
+ }
+}
+
+#endif /* SDL_CDROM_OSF */
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