summaryrefslogtreecommitdiffstats
path: root/kscd/libwm/plat_bsd386.c
diff options
context:
space:
mode:
Diffstat (limited to 'kscd/libwm/plat_bsd386.c')
-rw-r--r--kscd/libwm/plat_bsd386.c510
1 files changed, 510 insertions, 0 deletions
diff --git a/kscd/libwm/plat_bsd386.c b/kscd/libwm/plat_bsd386.c
new file mode 100644
index 00000000..492d394c
--- /dev/null
+++ b/kscd/libwm/plat_bsd386.c
@@ -0,0 +1,510 @@
+/*
+ * $Id$
+ *
+ * This file is part of WorkMan, the civilized CD player library
+ * (c) 1991-1997 by Steven Grimm (original author)
+ * (c) by Dirk Försterling (current 'author' = maintainer)
+ * The maintainer can be contacted by his e-mail address:
+ * milliByte@DeathsDoor.com
+ *
+ * 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
+ *
+ *
+ * BSD/386-specific drive control routines.
+ */
+
+static char plat_bsd386_id[] = "$Id$";
+
+#if defined(__bsdi__) || defined(__bsdi)
+
+#include <errno.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+
+#include "include/wm_config.h"
+
+/*
+ * The following is included from the Linux module. However, I didn't
+ * see a check here if the CD to be ejected is mounted...
+ */
+#if defined(BSD_MOUNTTEST)
+ #include <mntent.h>
+#endif
+
+
+#include <sys/time.h>
+#include <string.h>
+#include <cdrom.h>
+#ifdef SOUNDBLASTER
+# include <sys/soundcard.h>
+#endif
+
+#include "include/wm_struct.h"
+#include "include/wm_helpers.h"
+#include "include/wm_cdtext.h"
+
+#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
+
+
+/*
+ * Since we can't sense the drive type with libcdrom anyway, and since the
+ * library doesn't provide "pause" or "resume" functions, use the daux field
+ * to point to the frame number at which we paused.
+ */
+struct pause_info
+{
+ int frame;
+ int endframe;
+};
+
+#define PAUSE_FRAME (((struct pause_info *) d->daux)->frame)
+#define END_FRAME (((struct pause_info *) d->daux)->endframe)
+#define CUR_CD ((struct cdinfo *) d->aux)
+
+void *malloc();
+
+#ifdef SOUNDBLASTER
+ int min_volume = 0;
+ int max_volume = 100;
+ int min_volume_drive = 10; /* Toshiba drive does low values. */
+ int max_volume_drive = 255;
+#else
+ int min_volume = 10;
+ int max_volume = 255;
+#endif
+
+/*--------------------------------------------------------*
+ * Initialize the drive. A no-op for the generic driver.
+ *--------------------------------------------------------*/
+int
+gen_init(struct wm_drive *d)
+{
+ return (0);
+} /* gen_init() */
+
+/*-----------------------------------------------------------------------*
+ * Open the CD device. We can't determine the drive type under BSD/386.
+ *-----------------------------------------------------------------------*/
+int
+wmcd_open(struct wm_drvie *d)
+{
+ void *aux = NULL, *daux = NULL;
+ int fd = -1;
+
+ if (d->aux) /* Device already open? */
+ {
+ wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): [device is open (aux=%d)]\n", d->aux);
+ return (0);
+ }
+
+ if ((aux = cdopen(d->cd_device)) == NULL)
+ {
+ fprintf(stderr, "No cdrom found by libcdrom\n");
+ return (-6);
+ }
+
+ if ((daux = malloc(sizeof(struct pause_info))) == NULL)
+ return (-1);
+
+#ifdef SOUNDBLASTER
+ fd = open("/dev/mixer", O_RDWR, 0);
+#endif
+
+ /* Now fill in the relevant parts of the wm_drive structure. */
+ find_drive_struct("", "", "");
+ d->aux = aux;
+ d->daux = daux;
+ d->fd = fd;
+ PAUSE_FRAME = 0;
+ END_FRAME = 0;
+
+ (d->init)(d);
+
+ return (0);
+} /* wmcd_open() */
+
+/*
+ * Re-Open the device if it is open.
+ */
+int
+wmcd_reopen( struct wm_drive *d )
+{
+ int status;
+ int tries = 0;
+
+ do {
+ wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_reopen\n");
+ status = gen_close( d );
+ wm_susleep( 1000 );
+ wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "calling wmcd_open()\n");
+ status = wmcd_open( d ); /* open it as usual */
+ wm_susleep( 1000 );
+ tries++;
+ } while ( (status != 0) && (tries < 10) );
+ return status;
+} /* wmcd_reopen() */
+
+
+/*---------------------------------------------*
+ * Send an arbitrary SCSI command to a device.
+ *---------------------------------------------*/
+int
+wm_scsi(struct wm_drive *d, unsigned char *cdb, int cdblen,
+ void *retbuf, int retbuflen, int getreply)
+{
+ /* Don't know how to do SCSI passthrough... */
+ return (-1);
+} /* wm_scsi() */
+
+int
+gen_close( struct wm_drive *d )
+{
+ if(d->fd != -1) {
+ wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closing the device\n");
+ close(d->fd); /* close mixer if open */
+ d->fd = -1;
+ cdclose( d->aux ); /* close the cdrom drive! */
+ d->aux = NULL;
+ free(d->daux);
+ d->daux = NULL;
+ }
+ return 0;
+}
+
+/*--------------------------------------------------------------------------*
+ * Get the current status of the drive: the current play mode, the absolute
+ * position from start of disc (in frames), and the current track and index
+ * numbers if the CD is playing or paused.
+ *--------------------------------------------------------------------------*/
+#define DOPOS \
+ *pos = status.abs_frame; \
+*track = status.track_num; \
+*index = status.index_num
+
+int
+gen_get_drive_status(struct wm_drive *d, int oldmode,
+ int *mode, int *pos, int *track, int *index)
+{
+ struct cdstatus status;
+ extern enum wm_cd_modes cur_cdmode;
+
+ /* If we can't get status, the CD is ejected, so default to that. */
+ *mode = WM_CDM_EJECTED;
+
+ /* Is the device open? */
+ if (d->aux == NULL)
+ {
+ switch (wmcd_open(d))
+ {
+ case -1: /* error */
+ return (-1);
+
+ case 1: /* retry */
+ return (0);
+ }
+ }
+
+ if (cdstatus (CUR_CD, &status) < 0)
+ {
+ *mode = WM_CDM_TRACK_DONE; /* waiting for next track. */
+ return (0);
+ }
+
+ switch (status.state)
+ {
+ case cdstate_playing:
+ *mode = WM_CDM_PLAYING;
+ DOPOS;
+ break;
+
+ case cdstate_stopped:
+ /* the MITSUMI drive doesn't have a "paused" state,
+ so it always comes here and not to the paused section.
+ The PAUSE_FRAME stuff below (in gen_pause())
+ fakes out the paused state. */
+ if (oldmode == WM_CDM_PLAYING)
+ {
+ *mode = WM_CDM_TRACK_DONE;
+ break;
+ } else if (cur_cdmode != WM_CDM_PAUSED) {
+ *mode = WM_CDM_STOPPED;
+ DOPOS;
+ break;
+ }
+ /* fall through if paused */
+
+ case cdstate_paused:
+ /* the SCSI2 code in the cdrom library only pauses with
+ cdstop(); it never truly stops a disc (until an in-progress
+ play reaches the end). So it always comes here. */
+ if (cur_cdmode == WM_CDM_STOPPED)
+ {
+ *mode = WM_CDM_STOPPED;
+ DOPOS;
+ break;
+ }
+ if (oldmode == WM_CDM_PLAYING || oldmode == WM_CDM_PAUSED)
+ {
+ *mode = WM_CDM_PAUSED;
+ DOPOS;
+ } else {
+ *mode = WM_CDM_STOPPED;
+ DOPOS;
+ }
+ break;
+
+ default:
+ *mode = WM_CDM_STOPPED;
+ }
+
+ return (0);
+} /* gen_get_drive_status() */
+
+
+/*-------------------------------------*
+ * Get the number of tracks on the CD.
+ *-------------------------------------*/
+int
+gen_get_trackcount(struct wm_drive *d, int *tracks)
+{
+ *tracks = CUR_CD->ntracks;
+
+ return (0);
+} /* gen_get_trackcount() */
+
+/*---------------------------------------------------------*
+ * Get the start time and mode (data or audio) of a track.
+ *---------------------------------------------------------*/
+int
+gen_get_trackinfo(struct wm_drive *d, int track, int *data, int *startframe)
+{
+ *data = (CUR_CD->tracks[track - 1].control & 4) ? 1 : 0;
+ *startframe = CUR_CD->tracks[track - 1].start_frame;
+
+ return (0);
+} /* gen_get_trackinfo() */
+
+/*-------------------------------------*
+ * Get the number of frames on the CD.
+ *-------------------------------------*/
+int
+gen_get_cdlen(struct wm_drive *d, int *frames)
+{
+ *frames = CUR_CD->total_frames;
+
+ return (0);
+} /* gen_get_cdlen() */
+
+/*------------------------------------------------------------*
+ * Play the CD from one position to another (both in frames.)
+ *------------------------------------------------------------*/
+int
+gen_play(struct wm_drive *d, int start, int end)
+{
+ END_FRAME = end;
+ if (cdplay(d->aux, start, end) < 0)
+ return (-1);
+ else
+ return (0);
+} /* gen_play() */
+
+/*--------------------------------------------------------------------*
+ * Pause the CD. This is a bit of a trick since there's no cdpause()
+ * function in the library. We fake it by saving the frame number
+ * and stopping.
+ *--------------------------------------------------------------------*/
+int
+gen_pause(struct wm_drive *d)
+{
+ struct cdstatus status;
+
+ if (cdstatus(d->aux, &status) < 0)
+ return (-1);
+ if (status.state != cdstate_playing)
+ PAUSE_FRAME = CUR_CD->tracks[0].start_frame;
+ else
+ PAUSE_FRAME = status.abs_frame;
+ if (cdstop(d->aux) < 0)
+ return (-1);
+
+ return (0);
+} /* gen_pause() */
+
+/*-------------------------------------------------*
+ * Resume playing the CD (assuming it was paused.)
+ *-------------------------------------------------*/
+int
+gen_resume(struct wm_drive *d)
+{
+ int status;
+
+ status = (d->play)(d, PAUSE_FRAME, END_FRAME);
+ PAUSE_FRAME = 0;
+ return (status);
+} /* gen_resume() */
+
+/*--------------*
+ * Stop the CD.
+ *--------------*/
+int
+gen_stop(struct wm_drive *d)
+{
+ return cdstop(d->aux);
+} /* gen_stop() */
+
+/*----------------------------------------*
+ * Eject the current CD, if there is one.
+ *----------------------------------------*/
+int
+gen_eject(struct wm_drive *d)
+{
+ cdeject(d->aux);
+ cdclose(d->aux);
+ d->aux = NULL;
+ free(d->daux);
+ d->daux = NULL;
+
+ if (d->fd >= 0)
+ close(d->fd); /* close mixer */
+ d->fd = -1;
+ return (0);
+} /* gen_eject() */
+
+/*----------------------------------------*
+ * Close the CD tray
+ *----------------------------------------*/
+int
+gen_closetray(struct wm_drive *d)
+{
+#ifdef CAN_CLOSE
+ if (!cdload(d->aux))
+ return(0);
+ return(-1);
+#else
+ /* Always succeed if the drive can't close */
+ return(0);
+#endif /* CAN_CLOSE */
+} /* gen_closetray() */
+
+
+/*------------------------------------------------------------------------*
+ * Return a volume value suitable for passing to the CD-ROM drive. "vol"
+ * is a volume slider setting; "max" is the slider's maximum value.
+ *------------------------------------------------------------------------*/
+static int
+scale_volume(int vol, int max)
+{
+ /* on Toshiba XM-3401B drive, and on soundblaster, this works fine. */
+ return ((vol * (max_volume - min_volume)) / max + min_volume);
+} /* scale_volume() */
+
+/*---------------------------------------------------------------------------*
+ * unscale_volume(cd_vol, max)
+ *
+ * Given a value between min_volume and max_volume, return the volume slider
+ * value needed to achieve that value.
+ *
+ * Rather than perform floating-point calculations to reverse the above
+ * formula, we simply do a binary search of scale_volume()'s return values.
+ *--------------------------------------------------------------------------*/
+static int
+unscale_volume(int cd_vol, int max)
+{
+ int vol = 0, top = max, bot = 0, scaled;
+
+ while (bot <= top)
+ {
+ vol = (top + bot) / 2;
+ scaled = scale_volume(vol, max);
+ if (cd_vol == scaled)
+ break;
+ if (cd_vol < scaled)
+ top = vol - 1;
+ else
+ bot = vol + 1;
+ }
+
+ if (vol < 0)
+ vol = 0;
+ else if (vol > max)
+ vol = max;
+
+ return (vol);
+} /* unscale_volume() */
+
+/*---------------------------------------------------------------------*
+ * Set the volume level for the left and right channels. Their values
+ * range from 0 to 100.
+ *---------------------------------------------------------------------*/
+int
+gen_set_volume(struct wm_drive *d, int left, int right)
+{
+ int level;
+
+ left = scale_volume(left, 100);
+ right = scale_volume(right, 100);
+ level = right << 8 | left;
+
+ /* Send a Mixer IOCTL */
+ if (d->fd >= 0)
+ (void) ioctl(d->fd, MIXER_WRITE(SOUND_MIXER_VOLUME), &level);
+#ifdef notnow
+ /* NOTE: the cdvolume2() call is an addition to the cdrom library.
+ Pick it up from the archives on bsdi.com */
+ cdvolume2 (CUR_CD, left < 0 ? 0 : left > 255 ? 255 : left,
+ right < 0 ? 0 : right > 255 ? 255 : right);
+
+#endif
+ return (0);
+}
+
+/*---------------------------------------------------------------------*
+ * Read the initial volume from the drive, if available. Each channel
+ * ranges from 0 to 100, with -1 indicating data not available.
+ *---------------------------------------------------------------------*/
+int
+gen_get_volume(struct wm_drive *d, int *left, int *right)
+{
+ int level;
+
+ /* Most systems can't seem to do this... */
+ *left = *right = -1;
+
+ /* Send a Mixer IOCTL */
+ if (d->fd >= 0) {
+ if (ioctl(d->fd, MIXER_READ(SOUND_MIXER_VOLUME), &level) == 0) {
+ *left = unscale_volume((level & 0xff) & 0xff, 100);
+ *right = unscale_volume((level >> 8) & 0xff, 100);
+ }
+ }
+ return (0);
+}
+
+/*------------------------------------------------------------------------*
+ * gen_get_cdtext(drive, buffer, lenght)
+ *------------------------------------------------------------------------*/
+
+int
+gen_get_cdtext(struct wm_drive *d, unsigned char **pp_buffer, int *p_buffer_lenght)
+{
+ return -1; /* no SCSI, no CDTEXT */
+} /* gen_get_cdtext() */
+
+
+#endif /* __bsdi__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-06 18:07:29 +0000