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Report ability to read MCN.

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Add MMC routine to read audio subchannel.
This commit is contained in:
rocky
2005-03-01 09:33:52 +00:00
parent 126777b282
commit cd328dac84
10 changed files with 158 additions and 96 deletions
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40
lib/driver/mmc.c
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@@ -1,6 +1,6 @@
/* Common Multimedia Command (MMC) routines.
$Id: mmc.c,v 1.16 2005/02/28 02:56:26 rocky Exp $
$Id: mmc.c,v 1.17 2005/03/01 09:33:52 rocky Exp $
Copyright (C) 2004, 2005 Rocky Bernstein <rocky@panix.com>
@@ -54,6 +54,20 @@
corresponding publically-accessible routine.
*************************************************************************/
/*!
Read Audio Subchannel information
@param p_user_data the CD object to be acted upon.
*/
driver_return_code_t
audio_read_subchannel_mmc ( void *p_user_data, cdio_subchannel_t *p_subchannel)
{
generic_img_private_t *p_env = p_user_data;
if (!p_env) return DRIVER_OP_UNINIT;
return mmc_get_blocksize(p_env->cdio);
}
/*!
Get the block size for subsequest read requests, via MMC.
@return the blocksize if > 0; error if <= 0
@@ -161,6 +175,7 @@ mmc_get_drive_cap_buf(const uint8_t *p,
if (p[5] & 0x01) *p_read_cap |= CDIO_DRIVE_CAP_READ_CD_DA;
if (p[5] & 0x10) *p_read_cap |= CDIO_DRIVE_CAP_READ_C2_ERRS;
if (p[5] & 0x20) *p_read_cap |= CDIO_DRIVE_CAP_READ_ISRC;
if (p[5] & 0x40) *p_read_cap |= CDIO_DRIVE_CAP_READ_MCN;
/* Writer */
if (p[3] & 0x01) *p_write_cap |= CDIO_DRIVE_CAP_WRITE_CD_R;
@@ -508,6 +523,29 @@ mmc_get_disc_last_lsn ( const CdIo_t *p_cdio )
return retval;
}
/*!
Read Audio Subchannel information
@param p_cdio the CD object to be acted upon.
*/
driver_return_code_t
mmc_audio_read_subchannel (CdIo_t *p_cdio, cdio_subchannel_t *p_subchannel)
{
scsi_mmc_cdb_t cdb;
if (!p_cdio) return DRIVER_OP_UNINIT;
memset(&cdb, 0, sizeof(scsi_mmc_cdb_t));
CDIO_MMC_SET_COMMAND(cdb.field, CDIO_MMC_GPCMD_READ_SUBCHANNEL);
cdb.field[1] = CDIO_CDROM_MSF;
cdb.field[2] = 0x40; /* subq */
cdb.field[6] = 0x40; /* track number (only in isrc mode, ignored) */
cdb.field[8] = 20;
return mmc_run_cmd(p_cdio, 2000, &cdb, SCSI_MMC_DATA_READ,
sizeof(cdio_subchannel_t), p_subchannel);
}
/*!
Return the discmode as reported by the SCSI-MMC Read (FULL) TOC
command.