Run a Multimedia command (MMC) specifying the CDB length.

The motivation here is for example ot use in is an undocumented
debug command for LG drives (namely E7), whose length is being
miscalculated by mmc_get_cmd_len(); it doesn't follow the usual
code number to length conventions. Patch supplied by SukkoPera.

include/cdio/mmc.h

@@ -1,7 +1,7 @@
 /*
-    $Id: mmc.h,v 1.29 2006/10/27 10:38:41 rocky Exp $
+    $Id: mmc.h,v 1.30 2007/11/21 03:01:58 rocky Exp $
 
-    Copyright (C) 2003, 2004, 2005, 2006 Rocky Bernstein <rocky@cpan.org>
+    Copyright (C) 2003, 2004, 2005, 2006, 2007 Rocky Bernstein <rocky@gnu.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -785,6 +785,31 @@ mmc_audio_read_subchannel (CdIo_t *p_cdio,
                    const mmc_cdb_t *p_cdb,
                    cdio_mmc_direction_t e_direction, unsigned int i_buf, 
                    /*in/out*/ void *p_buf );
+
+  /**
+    Run a Multimedia command (MMC) specifying the CDB length.
+    The motivation here is for example ot use in is an undocumented 
+    debug command for LG drives (namely E7), whose length is being 
+    miscalculated by mmc_get_cmd_len(); it doesn't follow the usual 
+    code number to length conventions. Patch supplied by SukkoPera.
+
+    @param p_cdio	 CD structure set by cdio_open().
+    @param i_timeout_ms  time in milliseconds we will wait for the command
+                         to complete. 
+    @param p_cdb	 CDB bytes. All values that are needed should be set 
+                         on input. 
+    @param i_cdb	 number of CDB bytes. 
+    @param e_direction   direction the transfer is to go.
+    @param i_buf	 Size of buffer
+    @param p_buf	 Buffer for data, both sending and receiving.
+
+    @return 0 if command completed successfully.
+  */
+  int mmc_run_cmd_len( const CdIo_t *p_cdio, unsigned int i_timeout_ms,
+                   const mmc_cdb_t *p_cdb, unsigned int i_cdb,
+                   cdio_mmc_direction_t e_direction, unsigned int i_buf,
+                   /*in/out*/ void *p_buf );
+
   /**
     Set the block size for subsequest read requests, via MMC.
   */

lib/driver/libcdio.sym

@@ -201,6 +201,7 @@ mmc_read_data_sectors
 mmc_read_sectors
 mmc_read_timeout_ms
 mmc_run_cmd
+mmc_run_cmd_len
 mmc_set_blocksize
 mmc_set_speed
 mmc_start_stop_media

lib/driver/mmc.c

@@ -1,8 +1,8 @@
 /*  Common Multimedia Command (MMC) routines.
 
-    $Id: mmc.c,v 1.35 2006/10/11 12:38:18 rocky Exp $
+    $Id: mmc.c,v 1.36 2007/11/21 03:01:58 rocky Exp $
 
-    Copyright (C) 2004, 2005, 2006 Rocky Bernstein <rocky@cpan.org>
+    Copyright (C) 2004, 2005, 2006, 2007 Rocky Bernstein <rocky@gnu.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -950,6 +950,21 @@ mmc_run_cmd( const CdIo_t *p_cdio, unsigned int i_timeout_ms,
 				     p_cdb, e_direction, i_buf, p_buf);
 }
 
+/* Added by SukkoPera to allow CDB length to be specified manually */
+driver_return_code_t
+mmc_run_cmd_len( const CdIo_t *p_cdio, unsigned int i_timeout_ms,
+                  const mmc_cdb_t *p_cdb, unsigned int i_cdb,
+                  cdio_mmc_direction_t e_direction, unsigned int i_buf,
+                  /*in/out*/ void *p_buf )
+{
+  if (!p_cdio) return DRIVER_OP_UNINIT;
+  if (!p_cdio->op.run_mmc_cmd) return DRIVER_OP_UNSUPPORTED;
+  return p_cdio->op.run_mmc_cmd(p_cdio->env, i_timeout_ms,
+                                     i_cdb,
+                                     p_cdb, e_direction, i_buf, p_buf);
+}
+
+
 /*! Return the byte size returned on a MMC READ command (e.g. READ_10,
     READ_MSF, ..)
 */