diff options
Diffstat (limited to 'libmpio')
| -rw-r--r-- | libmpio/mpio.c | 54 |
1 files changed, 41 insertions, 13 deletions
diff --git a/libmpio/mpio.c b/libmpio/mpio.c index 778890f..e9ab24a 100644 --- a/libmpio/mpio.c +++ b/libmpio/mpio.c @@ -1,6 +1,6 @@ /* * - * $Id: mpio.c,v 1.19 2002/09/18 22:18:29 germeier Exp $ + * $Id: mpio.c,v 1.20 2002/09/18 23:17:03 germeier Exp $ * * Library for USB MPIO-* * @@ -63,8 +63,18 @@ mpio_init_internal(mpio_t *m) /* init main memory parameters */ sm->manufacturer = m->version[i_offset]; sm->id = m->version[i_offset+1]; - sm->size = mpio_id2mem(sm->id); sm->chips = 1; + if (mpio_id_valid(m->version[i_offset])) + { + sm->size = mpio_id2mem(sm->id); + } else { + sm->manufacturer = 0; + sm->id = 0; + sm->size = 0; + debug("WARNING: no internal memory found\n"); + return; + } + /* look for a second installed memory chip */ if (mpio_id_valid(m->version[i_offset+2])) @@ -202,7 +212,8 @@ mpio_init(BYTE (*progress_callback)(int, int)) mpio_init_external(new_mpio); /* read FAT/spare area */ - mpio_fat_read(new_mpio, MPIO_INTERNAL_MEM, progress_callback); + if (new_mpio->internal.id) + mpio_fat_read(new_mpio, MPIO_INTERNAL_MEM, progress_callback); return new_mpio; } @@ -217,6 +228,10 @@ int mpio_memory_free(mpio_t *m, mpio_mem_t mem, int *free) { if (mem==MPIO_INTERNAL_MEM) { + if (!m->internal.size) { + *free=0; + return 0; + } *free=mpio_fat_free_clusters(m, mem); return (m->internal.geo.SumSector * SECTOR_SIZE / 1000 * m->internal.chips); @@ -259,16 +274,21 @@ mpio_get_info(mpio_t *m, mpio_info_t *info) m->firmware.day, m->firmware.month, m->firmware.year); snprintf(info->model, max, "%s", mpio_model_name[m->model]); - if (m->internal.chips == 1) - { - snprintf(info->mem_internal, max, "%3dMB (%s)", - mpio_id2mem(m->internal.id), - mpio_id2manufacturer(m->internal.manufacturer)); - } else { - snprintf(info->mem_internal, max, "%3dMB (%s) - %d chips", - mpio_id2mem(m->internal.id)*m->internal.chips, - mpio_id2manufacturer(m->internal.manufacturer), - m->internal.chips); + if (!m->internal.id) + { + snprintf(info->mem_internal, max, "not available"); + } else { + if (m->internal.chips == 1) + { + snprintf(info->mem_internal, max, "%3dMB (%s)", + mpio_id2mem(m->internal.id), + mpio_id2manufacturer(m->internal.manufacturer)); + } else { + snprintf(info->mem_internal, max, "%3dMB (%s) - %d chips", + mpio_id2mem(m->internal.id)*m->internal.chips, + mpio_id2manufacturer(m->internal.manufacturer), + m->internal.chips); + } } if (m->external.id) @@ -692,6 +712,14 @@ mpio_file_del(mpio_t *m, mpio_mem_t mem, BYTE *filename, int mpio_sync(mpio_t *m, mpio_mem_t mem) { + mpio_smartmedia_t *sm; + + if (mem == MPIO_INTERNAL_MEM) sm = &m->internal; + if (mem == MPIO_EXTERNAL_MEM) sm = &m->external; + + if (!sm->size) + return 0; + /* this writes the FAT *and* the root directory */ return mpio_fat_write(m, mem); } |