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author | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
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committer | toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da> | 2009-11-25 17:56:58 +0000 |
commit | e2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch) | |
tree | 9047cf9e6b5c43878d5bf82660adae77ceee097a /kscd/libwm/scsi.c | |
download | tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip |
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kscd/libwm/scsi.c')
-rw-r--r-- | kscd/libwm/scsi.c | 667 |
1 files changed, 667 insertions, 0 deletions
diff --git a/kscd/libwm/scsi.c b/kscd/libwm/scsi.c new file mode 100644 index 00000000..4e0dd759 --- /dev/null +++ b/kscd/libwm/scsi.c @@ -0,0 +1,667 @@ +/* + * $Id$ + * + * This file is part of WorkMan, the civilized CD player library + * (c) 1991-1997 by Steven Grimm (original author) + * (c) by Dirk F�rsterling (current 'author' = maintainer) + * The maintainer can be contacted by his e-mail address: + * + * 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 + * + * + * Frontend functions for sending raw SCSI commands to the CD-ROM drive. + * These depend on wm_scsi(), which should be defined in each platform + * module. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "include/wm_config.h" +#include "include/wm_struct.h" +#include "include/wm_scsi.h" +#include "include/wm_platform.h" +#include "include/wm_helpers.h" +#include "include/wm_cdrom.h" +#include "include/wm_cdtext.h" + +#define SCMD_INQUIRY 0x12 +#define SCMD_MODE_SELECT 0x15 +#define SCMD_MODE_SENSE 0x1a +#define SCMD_START_STOP 0x1b +#define SCMD_PREVENT 0x1e +#define SCMD_READ_SUBCHANNEL 0x42 +#define SCMD_READ_TOC 0x43 +#define SCMD_PLAY_AUDIO_MSF 0x47 +#define SCMD_PAUSE_RESUME 0x4b + +#define SUBQ_STATUS_INVALID 0x00 +#define SUBQ_STATUS_PLAY 0x11 +#define SUBQ_STATUS_PAUSE 0x12 +#define SUBQ_STATUS_DONE 0x13 +#define SUBQ_STATUS_ERROR 0x14 +#define SUBQ_STATUS_NONE 0x15 +#define SUBQ_STATUS_NO_DISC 0x17 /* Illegal, but Toshiba returns it. */ +#define SUBQ_ILLEGAL 0xff + +#define PAGE_AUDIO 0x0e +#define LEADOUT 0xaa + +#define WM_MSG_CLASS WM_MSG_CLASS_SCSI + +/* local prototypes */ +int wm_scsi_mode_select( struct wm_drive *d, unsigned char *buf, unsigned char len ); +int wm_scsi2_pause_resume(struct wm_drive *d, int resume); +int wm_scsi2_prevent(struct wm_drive *d, int prevent); +int wm_scsi2_play(struct wm_drive *d, int sframe, int eframe); +int wm_scsi2_get_trackinfo(struct wm_drive *d, int track, int *data, int *startframe); +int wm_scsi2_get_cdlen(struct wm_drive *d, int frames); +int wm_scsi2_get_drive_status(struct wm_drive *d, int oldmode, + int *mode, int *pos, int *track, int *ind); +int wm_scsi2_get_trackcount(struct wm_drive *d, int *tracks); +int wm_scsi2_pause(struct wm_drive *d); +int wm_scsi2_resume(struct wm_drive *d); +int wm_scsi2_stop(struct wm_drive *d); +int wm_scsi2_eject(struct wm_drive *d); +int wm_scsi2_closetray(struct wm_drive *d); +int wm_scsi2_get_volume(struct wm_drive *d, int *left, int *right); +int wm_scsi2_set_volume(struct wm_drive *d, int left, int right); +/* local prototypes END */ + +/* + * Send a SCSI command over the bus, with all the CDB bytes specified + * as unsigned char parameters. This doesn't use varargs because some + * systems have stdargs instead and the number of bytes in a CDB is + * limited to 12 anyway. + * + * d Drive structure + * buf Buffer for data, both sending and receiving + * len Size of buffer + * dir TRUE if the command expects data to be returned in the buffer. + * a0- CDB bytes. Either 6, 10, or 12 of them, depending on the command. + */ +/*VARARGS4*/ +int +sendscsi( struct wm_drive *d, void *buf, + unsigned int len, int dir, + unsigned char a0, unsigned char a1, + unsigned char a2, unsigned char a3, + unsigned char a4, unsigned char a5, + unsigned char a6, unsigned char a7, + unsigned char a8, unsigned char a9, + unsigned char a10, unsigned char a11 ) + +{ + int cdblen = 0; + unsigned char cdb[12]; + + cdb[0] = a0; + cdb[1] = a1; + cdb[2] = a2; + cdb[3] = a3; + cdb[4] = a4; + cdb[5] = a5; + + switch ((a0 >> 5) & 7) { + case 0: + cdblen = 6; + break; + + case 5: + cdb[10] = a10; + cdb[11] = a11; + cdblen = 12; + + case 1: + case 2: + case 6: /* assume 10-byte vendor-specific codes for now */ + cdb[6] = a6; + cdb[7] = a7; + cdb[8] = a8; + cdb[9] = a9; + if (! cdblen) + cdblen = 10; + break; + } + + return (wm_scsi(d, cdb, cdblen, buf, len, dir)); +} + +/* + * Send a MODE SENSE command and return the results (minus header cruft) + * in a user buffer. + * + * d Drive structure + * page Number of page to query (plus page control bits, if any) + * buf Result buffer + */ +int +wm_scsi_mode_sense( struct wm_drive *d, unsigned char page, unsigned char *buf ) +{ + unsigned char pagebuf[255]; + int status, i, len, offset; + + status = sendscsi(d, pagebuf, sizeof(pagebuf), 1, SCMD_MODE_SENSE, 0, + page, 0, sizeof(pagebuf), 0,0,0,0,0,0,0); + if (status < 0) + return (status); + + /* + * The first byte of the returned data is the transfer length. Then + * two more bytes and the length of whatever header blocks are in + * front of the page we want. + */ + len = pagebuf[0] - pagebuf[3] - 3; + offset = pagebuf[3] + 4; + for (i = 0; i < len; i++) + buf[i] = pagebuf[offset + i]; + + return (0); +} + +/* + * Send a MODE SELECT command. + * + * d Drive structure + * buf Page buffer (no need to put on block descriptors) + * len Size of page + */ +int +wm_scsi_mode_select( struct wm_drive *d, unsigned char *buf, unsigned char len ) +{ + unsigned char pagebuf[255]; + int i; + + pagebuf[0] = pagebuf[1] = pagebuf[2] = pagebuf[3] = 0; + for (i = 0; i < (int) len; i++) + pagebuf[i + 4] = buf[i]; + + return (sendscsi(d, pagebuf, len + 4, 0, SCMD_MODE_SELECT, 0x10, 0, + 0, len + 4, 0,0,0,0,0,0,0)); +} + +/* + * Send an INQUIRY command to get the drive type. + * + * d Drive structure + * vendor Buffer for vendor name (8 bytes + null) + * model Buffer for model name (16 bytes + null) + * rev Buffer for revision level (4 bytes + null) + * + * The above string lengths apply to the SCSI INQUIRY command. The + * actual WorkMan drive structure reserves 31 bytes + NULL per entry. + * + * If the model name begins with "CD-ROM" and zero or more spaces, that will + * all be stripped off since it's just extra junk to WorkMan. + */ +int +wm_scsi_get_drive_type( struct wm_drive *d, char *vendor, + char *model, char *rev ) +{ +/* removed unsigned*/ + char *s, *t, buf[36]; + memset(buf, 0, 36); + + wm_lib_message(WM_MSG_CLASS_SCSI | WM_MSG_LEVEL_INFO, "Sending SCSI inquiry command...\n"); + if (sendscsi(d, buf, 36, 1, SCMD_INQUIRY, 0, 0, 0, 36, 0,0,0,0,0,0,0)) + { + sprintf( vendor, WM_STR_GENVENDOR); + sprintf( model, WM_STR_GENMODEL); + sprintf( rev, WM_STR_GENREV); + wm_lib_message(WM_MSG_CLASS_SCSI | WM_MSG_LEVEL_ERROR, "SCSI Inquiry command not supported in this context\n"); + return -1; + } + + wm_lib_message(WM_MSG_CLASS_SCSI | WM_MSG_LEVEL_DEBUG, "sent.\n"); + + memcpy(vendor, buf + 8, 8); + vendor[8] = '\0'; + memcpy(model, buf + 16, 16); + model[16] = '\0'; + memcpy(rev, buf + 32, 4); + rev[4] = '\0'; + wm_lib_message(WM_MSG_CLASS_SCSI | WM_MSG_LEVEL_VERB, "SCSI Inquiry result: [%s|%s|%s]\n", vendor, model, rev); + + + /* Remove "CD-ROM " from the model. */ + if (! strncmp(model, "CD-ROM", 6)) + { + s = model + 6; + t = model; + while (*s == ' ' || *s == '\t') + s++; + while( (*t++ = *s++) ) + ; + } + wm_lib_message(WM_MSG_CLASS_SCSI | WM_MSG_LEVEL_INFO, "scsi: Cooked data: %s %s rev. %s\n", vendor, model,rev); + return (0); +} /* wm_scsi_get_drive_type() */ + +/* + * Send a SCSI-2 PAUSE/RESUME command. "resume" is 1 to resume, 0 to pause. + */ +int +wm_scsi2_pause_resume(struct wm_drive *d, int resume) +{ + return (sendscsi(d, NULL, 0, 0, SCMD_PAUSE_RESUME, 0, 0, 0, 0, 0, 0, + 0, resume ? 1 : 0, 0,0,0)); +} + +/* + * Send a SCSI-2 "prevent media removal" command. "prevent" is 1 to lock + * caddy in. + */ +int +wm_scsi2_prevent(struct wm_drive *d, int prevent) +{ + return (sendscsi(d, NULL, 0, 0, SCMD_PREVENT, 0, 0, 0, 0, 0, 0, + 0, prevent ? 1 : 0, 0,0,0)); +} + +/* + * Send a SCSI-2 PLAY AUDIO MSF command. Pass the starting and ending + * frame numbers. + */ +int +wm_scsi2_play(struct wm_drive *d, int sframe, int eframe) +{ + return (sendscsi(d, NULL, 0, 0, SCMD_PLAY_AUDIO_MSF, 0, 0, + sframe / (60 * 75), (sframe / 75) % 60, sframe % 75, + eframe / (60 * 75), (eframe / 75) % 60, eframe % 75, + 0,0,0)); +} + +/* + * Send a SCSI-2 READ TOC command to get the data for a particular track. + * Fill in track information from the returned data. + */ +int +wm_scsi2_get_trackinfo(struct wm_drive *d, int track, + int *data, int *startframe) +{ + unsigned char buf[12]; /* one track's worth of info */ + + if (sendscsi(d, buf, sizeof(buf), 1, SCMD_READ_TOC, 2, + 0, 0, 0, 0, track, sizeof(buf) / 256, + sizeof(buf) % 256, 0,0,0)) + return (-1); + + *data = buf[5] & 4 ? 1 : 0; + *startframe = buf[9] * 60 * 75 + buf[10] * 75 + buf[11]; + + return (0); +} + +/* + * Get the starting frame for the leadout area (which should be the same as + * the length of the disc as far as WorkMan is concerned). + */ +int +wm_scsi2_get_cdlen(struct wm_drive *d, int frames) +{ + int tmp; + return (wm_scsi2_get_trackinfo(d, LEADOUT, &tmp, &frames)); +} + +/* + * Get the current status of the drive by sending the appropriate SCSI-2 + * READ SUB-CHANNEL command. + */ +int +wm_scsi2_get_drive_status(struct wm_drive *d, int oldmode, + int *mode, int *pos, int *track, int *ind) +{ + unsigned char buf[48]; + + /* If we can't get status, the CD is ejected, so default to that. */ + *mode = WM_CDM_EJECTED; + + /* Is the device open? */ + if (d->fd < 0) + { +/* + * stupid somehow, but necessary this time + */ + switch( wmcd_open( d ) ) { + + case -1: /* error */ + return (-1); + + case 1: /* retry */ + return (0); + } + } + + /* If we can't read status, the CD has been ejected. */ + buf[1] = SUBQ_ILLEGAL; + if (sendscsi(d, buf, sizeof(buf), 1, SCMD_READ_SUBCHANNEL, 2, 64, 1, + 0, 0, 0, sizeof(buf) / 256, sizeof(buf) % 256, 0,0,0)) + return (0); + + switch (buf[1]) { + case SUBQ_STATUS_PLAY: + *mode = WM_CDM_PLAYING; + *track = buf[6]; + *ind = buf[7]; + *pos = buf[9] * 60 * 75 + buf[10] * 75 + buf[11]; + break; + + case SUBQ_STATUS_PAUSE: + if (oldmode == WM_CDM_PLAYING || oldmode == WM_CDM_PAUSED) + { + *mode = WM_CDM_PAUSED; + *track = buf[6]; + *ind = buf[7]; + *pos = buf[9] * 60 * 75 + + buf[10] * 75 + + buf[11]; + } + else + *mode = WM_CDM_STOPPED; + break; + + /* + * SUBQ_STATUS_DONE is sometimes returned when the CD is idle, + * even though the spec says it should only be returned when an + * audio play operation finishes. + */ + case SUBQ_STATUS_DONE: + case SUBQ_STATUS_NONE: + case SUBQ_STATUS_INVALID: + if (oldmode == WM_CDM_PLAYING) + *mode = WM_CDM_TRACK_DONE; + else + *mode = WM_CDM_STOPPED; + break; + + /* + * This usually means there's no disc in the drive. + */ + case SUBQ_STATUS_NO_DISC: + break; + + /* + * This usually means the user ejected the CD manually. + */ + case SUBQ_STATUS_ERROR: + break; + + case SUBQ_ILLEGAL: /* call didn't really succeed */ + break; + + default: + *mode = WM_CDM_UNKNOWN; +#ifndef NDEBUG + if( getenv( "WORKMAN_DEBUG" ) != NULL ) + printf("wm_scsi2_get_drive_status: status is 0x%x\n", + buf[1]); +#endif + break; + } + + return (0); +} + +/* + * Get the number of tracks on the CD using the SCSI-2 READ TOC command. + */ +int +wm_scsi2_get_trackcount(struct wm_drive *d, int *tracks) +{ + unsigned char buf[4]; + + if (sendscsi(d, buf, sizeof(buf), 1, SCMD_READ_TOC, 0, + 0, 0, 0, 0, 0, sizeof(buf) / 256, + sizeof(buf) % 256, 0,0,0)) + return (-1); + + *tracks = buf[3] - buf[2] + 1; + return (0); +} + +/* + * Pause the CD. + */ +int +wm_scsi2_pause(struct wm_drive *d) +{ + return (wm_scsi2_pause_resume(d, 0)); +} + +/* + * Resume playing after a pause. + */ +int +wm_scsi2_resume(struct wm_drive *d) +{ + return (wm_scsi2_pause_resume(d, 1)); +} + +/* + * Stop playing the CD by sending a START STOP UNIT command. + */ +int +wm_scsi2_stop(struct wm_drive *d) +{ + return (sendscsi(d, NULL, 0, 0, SCMD_START_STOP, 0, 0,0,0,0,0,0,0,0,0,0)); +} + +/* + * Eject the CD by sending a START STOP UNIT command. + */ +int +wm_scsi2_eject(struct wm_drive *d) +{ + /* Unlock the disc (possibly unnecessary). */ + if (wm_scsi2_prevent(d, 0)) + return (-1); + wm_lib_message(WM_MSG_CLASS_SCSI | WM_MSG_LEVEL_VERB, "Issuing START_STOP for ejecting...\n"); + return (sendscsi(d, NULL, 0, 0, SCMD_START_STOP, 2, 0,0,0,0,0,0,0,0,0,0)); +} + +/* + * Something like a dummy. The SCSI-2 specs are too hard for me to + * understand here... + * + * If you have the correct command handy, please send the code to + */ +int +wm_scsi2_closetray(struct wm_drive *d) +{ + wm_lib_message(WM_MSG_CLASS_SCSI | WM_MSG_LEVEL_VERB, "Issuing START_STOP for closing...\n"); + return (sendscsi(d, NULL, 0,0, SCMD_START_STOP, 2, 0,0,0,0,0,0,0,0,0,0)); +} + +/* + * Get the volume by doing a MODE SENSE command. + */ +int +wm_scsi2_get_volume(struct wm_drive *d, int *left, int *right) +{ + unsigned char mode[16]; + + *left = *right = -1; + + /* Get the current audio parameters first. */ + if (wm_scsi_mode_sense(d, PAGE_AUDIO, mode)) + return (-1); + + *left = ((int) mode[9] * 100) / 255; + *right = ((int) mode[11] * 100) / 255; + + return (0); +} + +/* + * Set the volume by doing a MODE SELECT command. + */ +int +wm_scsi2_set_volume(struct wm_drive *d, int left, int right) +{ + unsigned char mode[16]; + + /* Get the current audio parameters first. */ + if (wm_scsi_mode_sense(d, PAGE_AUDIO, mode)) + return (-1); + + /* Tweak the volume part of the parameters. */ + mode[9] = (left * 255) / 100; + mode[11] = (right * 255) / 100; + + /* And send them back to the drive. */ + return (wm_scsi_mode_select(d, mode, sizeof(mode))); +} + +/*------------------------------------------------------------------------* + * wm_scsi_get_cdtext(drive, buffer, lenght) + * + * Return a buffer with cdtext-stream. buffer mus be allocated and filled + * + * + *------------------------------------------------------------------------*/ + +int +wm_scsi_get_cdtext(struct wm_drive *d, unsigned char **pp_buffer, int *p_buffer_length) +{ + int ret; + unsigned char temp[8]; + unsigned char *dynamic_temp; + int cdtext_possible; + unsigned short cdtext_data_length; + unsigned long feature_list_length; +#define IGNORE_FEATURE_LIST +#ifndef IGNORE_FEATURE_LIST + struct feature_list_header *pHeader; + struct feature_descriptor_cdread *pDescriptor; +#endif /* IGNORE_FEATURE_LIST */ + + dynamic_temp = NULL; + cdtext_possible = 0; + wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wm_scsi_get_cdtext entered\n"); + + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT INFO: use GET_FEATURY_LIST(0x46)...\n"); + ret = sendscsi(d, temp, 8, 1, + 0x46, 0x02, 0x00, 0x1E, 0, + 0, 0, 0, 8, 0, 0, 0); + + if(ret) + { + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT ERROR: GET_FEATURY_LIST(0x46) not implemented or broken. ret = %i!\n", ret); +#ifndef IGNORE_FEATURE_LIST + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT ERROR: Try #define IGNORE_FEATURE_LIST in libwm/scsi.c\n"); +#else + cdtext_possible = 1; + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT INFO: GET_FEATURY_LIST(0x46) ignored. It's OK, because many CDROMS don't implement this feature\n"); +#endif /* IGNORE_FEATURE_LIST */ + } + else + { + feature_list_length = temp[0]*0xFFFFFF + temp[1]*0xFFFF + temp[2]*0xFF + temp[3] + 4; + + dynamic_temp = malloc(feature_list_length); + + if(!dynamic_temp) + return -1; + + memset(dynamic_temp, 0, feature_list_length); + ret = sendscsi(d, dynamic_temp, feature_list_length, 1, + 0x46, 0x02, 0x00, 0x1E, 0, 0, + 0, (feature_list_length>>8) & 0xFF, feature_list_length & 0xFF, 0, 0, 0); + + +#ifndef IGNORE_FEATURE_LIST + if(!ret) + { + pHeader = (struct feature_list_header*)dynamic_temp; +/* printf("length = %i, profile = 0x%02X%02X\n", pHeader->lenght_lsb, pHeader->profile_msb, pHeader->profile_lsb);*/ + pDescriptor = (struct feature_descriptor_cdread*)(dynamic_temp + sizeof(struct feature_list_header)); +/* printf("code = 0x%02X%02X, settings = 0x%02X, add_length = %i, add_settings = 0x%02X \n", + pDescriptor->feature_code_msb, pDescriptor->feature_code_lsb, pDescriptor->settings, + pDescriptor->add_lenght, pDescriptor->add_settings);*/ + + cdtext_possible = pDescriptor->add_settings & 0x01; + } + else + { + cdtext_possible = 0; + } + +#else + cdtext_possible = 1; +#endif /* IGNORE_FEATURE_LIST */ + + free (dynamic_temp); + dynamic_temp = 0; + } + + if(!cdtext_possible) + { + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT INFO: GET_FEATURY_LIST(0x46) says, CDTEXT is not present!\n"); + return EXIT_SUCCESS; + } + + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT INFO: try to read, how long CDTEXT is?\n"); + ret = sendscsi(d, temp, 4, 1, + SCMD_READ_TOC, 0x00, 0x05, 0, 0, 0, + 0, 0, 4, 0, 0, 0); + + if(ret) + { + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, + "CDTEXT ERROR: READ_TOC(0x43) with format code 0x05 not implemented or broken. ret = %i!\n", ret); + } + else + { + cdtext_data_length = temp[0]*0xFF + temp[1] + 4 + 1; /* divide by 18 + 4 ? */ + /* cdtext_data_length%18 == 0;? */ + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT INFO: CDTEXT is %i byte(s) long\n", cdtext_data_length); + /* cdc_buffer[2]; cdc_buffer[3]; reserwed */ + dynamic_temp = malloc(cdtext_data_length); + if(!dynamic_temp) + return -1; + + memset(dynamic_temp, 0, cdtext_data_length); + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT INFO: try to read CDTEXT\n"); + ret = sendscsi(d, dynamic_temp, cdtext_data_length, 1, + SCMD_READ_TOC, 0x00, 0x05, 0, 0, 0, + 0, (cdtext_data_length>>8) & 0xFF, cdtext_data_length & 0xFF, 0, 0, 0); + + if(ret) + { + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, + "CDTEXT ERROR: READ_TOC(0x43) with format code 0x05 not implemented or broken. ret = %i!\n", ret); + } + else + { + cdtext_data_length = temp[0]*0xFF + temp[1] + 4 + 1; /* divide by 18 + 4 ? */ + wm_lib_message(WM_MSG_LEVEL_INFO|WM_MSG_CLASS, "CDTEXT INFO: read %i byte(s) of CDTEXT\n", cdtext_data_length); + + /* send cdtext only 18 bytes packs * ? */ + *(p_buffer_length) = cdtext_data_length - 4; + *pp_buffer = malloc(*p_buffer_length); + if(!(*pp_buffer)) + { + return -1; + } + memcpy(*pp_buffer, dynamic_temp + 4, *p_buffer_length); + } + free(dynamic_temp); + dynamic_temp = 0; + } + + return ret; +} /* wm_scsi_get_cdtext() */ |