diff options
Diffstat (limited to 'libmpio/src/mmc.c')
| -rw-r--r-- | libmpio/src/mmc.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/libmpio/src/mmc.c b/libmpio/src/mmc.c new file mode 100644 index 0000000..10907d7 --- /dev/null +++ b/libmpio/src/mmc.c @@ -0,0 +1,101 @@ +/* + * $Id: mmc.c,v 1.1 2004/05/30 16:28:52 germeier Exp $ + * + * libmpio - a library for accessing Digit@lways MPIO players + * Copyright (C) 2004 Robert Kellington, Markus Germeier + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc.,g 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <stdio.h> +#include <stdlib.h> + +#include "mmc.h" +#include "debug.h" + +/* + This routine attempts to detect when mmc module is present and set some variables according to + that size. If adding a new memory module do the following changes: + 1. Add the appropriate switch below (size and geo need to be set). + 2. Add the new module size and array data into the routines mmc_mpio_mbr_gen and mmc_mpio_pbr_gen for the memory + formating. + That should be all +*/ +BYTE mpio_mmc_detect_memory(mpio_t *m, mpio_mem_t mem) +{ + mpio_smartmedia_t *sm=0; + int size; + + /* just in case we encounter a player with an internel mmc memory */ + if (mem == MPIO_INTERNAL_MEM) sm = &m->internal; + if (mem == MPIO_EXTERNAL_MEM) sm = &m->external; + if (!sm) + { + debug("error in memory selection, aborting\n"); + exit (-1); + } + + /*looking for likely markers*/ + /* + if((m->version[0x28] == 0x32) && (m->version[0x3a] == 0x01) && (m->version[0x3b] == 0x01) && + (m->version[0x30] == 0xff) && (m->version[0x31] == 0xcf)) + */ + if((m->version[0x39] == 0x01) && (m->version[0x3b] == 0x01) && (m->version[0x20] == 0xff) && (m->version[0x21] == 0xff) && + (m->version[0x22] == 0xff) && (m->version[0x23] == 0xff) && (m->version[0x24] == 0xff) && (m->version[0x25] == 0xff)) + { + switch(m->version[0x26]) + { + case 0x0e: /* 16 Mb */ + /*NOTE: This size needs formating to be added and testing*/ + sm->size = 16; + sm->geo = MPIO_DISK_GEO_016; + break; + case 0x1e: /* 32 Mb */ + sm->size = 32; + sm->geo = MPIO_DISK_GEO_032; + break; + case 0x3b: /* 64 Mb */ + sm->size = 64; + sm->geo = MPIO_DISK_GEO_064; + break; + case 0x78: /* 128 Mb */ + sm->size = 128; + sm->geo = MPIO_DISK_GEO_128; + break; + case 0xf1: /* 256 Mb */ + sm->size = 256; + sm->geo = MPIO_DISK_GEO_256; + break; + default: + debug("Found MMC memory markers but didn't recognize size\n"); + sm->mmc = 0; + sm->size = 0; + return 0; + } + sm->mmc = 1; + sm->chips = 1; + sm->version = 0; + sm->id = 0x78; /* Assigning my random id */ + + debug("Found MMC memory and all is OK so far\n"); + + return 1; + } + + debug("Not recognized MMC memory\n"); + + return 0; +} |