diff options
Diffstat (limited to 'api')
-rw-r--r-- | api/api_storage.c | 98 |
1 files changed, 34 insertions, 64 deletions
diff --git a/api/api_storage.c b/api/api_storage.c index bd43144..e80818d 100644 --- a/api/api_storage.c +++ b/api/api_storage.c @@ -88,90 +88,60 @@ void dev_stor_init(void) * * type: storage group type - ENUM_IDE, ENUM_SCSI etc. * - * first: if 1 the first device in the storage group is returned (if - * exists), if 0 the next available device is searched - * * more: returns 0/1 depending if there are more devices in this group * available (for future iterations) * * returns: 0/1 depending if device found in this iteration */ -static int dev_stor_get(int type, int first, int *more, struct device_info *di) +static int dev_stor_get(int type, int *more, struct device_info *di) { - int found = 0; - *more = 0; - - int i; - struct blk_desc *dd; + int found = 0; + int i = 0; /* Wasn't configured for this type, return 0 directly */ if (specs[type].name == NULL) return 0; - if (first) { - di->cookie = (void *)blk_get_dev(specs[type].name, 0); - if (di->cookie == NULL) - return 0; - else - found = 1; - - /* - * provide hint if there are more devices in - * this group to enumerate - */ - if (1 < specs[type].max_dev) - *more = 1; - - } else { - for (i = 0; i < specs[type].max_dev; i++) + if (di->cookie != NULL) { + /* Find the last device we've returned */ + for (i = 0; i < specs[type].max_dev; i++) { if (di->cookie == (void *)blk_get_dev(specs[type].name, i)) { - /* - * previous cookie found -- advance to the - * next device, if possible - */ - - if (++i >= specs[type].max_dev) { - /* out of range, no more to enum */ - di->cookie = NULL; - break; - } - - di->cookie = (void *)blk_get_dev( - specs[type].name, i); - if (di->cookie == NULL) - return 0; - else - found = 1; - - /* - * provide hint if there are more devices in - * this group to enumerate - */ - if ((i + 1) < specs[type].max_dev) - *more = 1; - + i += 1; break; } + } } - if (found) { - di->type = specs[type].type; + for (; i < specs[type].max_dev; i++) { + di->cookie = (void *)blk_get_dev(specs[type].name, i); if (di->cookie != NULL) { - dd = (struct blk_desc *)di->cookie; - if (dd->type == DEV_TYPE_UNKNOWN) { - debugf("device instance exists, but is not active.."); - found = 0; - } else { - di->di_stor.block_count = dd->lba; - di->di_stor.block_size = dd->blksz; - } + found = 1; + break; } + } + + if (i == specs[type].max_dev) + *more = 0; + else + *more = 1; - } else + if (found) { + di->type = specs[type].type; + + dd = (struct blk_desc *)di->cookie; + if (dd->type == DEV_TYPE_UNKNOWN) { + debugf("device instance exists, but is not active.."); + found = 0; + } else { + di->di_stor.block_count = dd->lba; + di->di_stor.block_size = dd->blksz; + } + } else { di->cookie = NULL; + } return found; } @@ -230,7 +200,7 @@ static int dev_enum_stor(int type, struct device_info *di) * 1. Enumeration (re-)started: take the first available * device, if exists */ - found = dev_stor_get(type, 1, &more, di); + found = dev_stor_get(type, &more, di); specs[type].enum_started = 1; } else if (dev_is_stor(type, di)) { @@ -242,7 +212,7 @@ static int dev_enum_stor(int type, struct device_info *di) } /* 2a. Attempt to take a next available device in the group */ - found = dev_stor_get(type, 0, &more, di); + found = dev_stor_get(type, &more, di); } else { if (specs[type].enum_ended) { @@ -266,7 +236,7 @@ static int dev_enum_stor(int type, struct device_info *di) * Attempt to take the first device in this group: *'first element' flag is set */ - found = dev_stor_get(type, 1, &more, di); + found = dev_stor_get(type, &more, di); } else { errf("group%d - out of order iteration\n", type); |