diff options
Diffstat (limited to 'nuttx/drivers/bch/bchlib_setup.c')
| -rw-r--r-- | nuttx/drivers/bch/bchlib_setup.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/nuttx/drivers/bch/bchlib_setup.c b/nuttx/drivers/bch/bchlib_setup.c deleted file mode 100644 index 1026248b5..000000000 --- a/nuttx/drivers/bch/bchlib_setup.c +++ /dev/null @@ -1,159 +0,0 @@ -/**************************************************************************** - * drivers/bch/bchlib_setup.c - * - * Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <sys/types.h> -#include <sys/mount.h> - -#include <stdint.h> -#include <stdbool.h> -#include <stdlib.h> -#include <errno.h> -#include <assert.h> -#include <debug.h> - -#include <nuttx/kmalloc.h> -#include <nuttx/fs/fs.h> - -#include "bch_internal.h" - -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: bchlib_setup - * - * Description: - * Setup so that the block driver referenced by 'blkdev' can be accessed - * similar to a character device. - * - ****************************************************************************/ - -int bchlib_setup(const char *blkdev, bool readonly, FAR void **handle) -{ - FAR struct bchlib_s *bch; - struct geometry geo; - int ret; - - DEBUGASSERT(blkdev); - - /* Allocate the BCH state structure */ - - bch = (FAR struct bchlib_s*)kzalloc(sizeof(struct bchlib_s)); - if (!bch) - { - fdbg("Failed to allocate BCH structure\n"); - return -ENOMEM; - } - - /* Open the block driver */ - - ret = open_blockdriver(blkdev, readonly ? MS_RDONLY : 0, &bch->inode); - if (ret < 0) - { - fdbg("Failed to open driver %s: %d\n", blkdev, -ret); - goto errout_with_bch; - } - - DEBUGASSERT(bch->inode && bch->inode->u.i_bops && bch->inode->u.i_bops->geometry); - - ret = bch->inode->u.i_bops->geometry(bch->inode, &geo); - if (ret < 0) - { - fdbg("geometry failed: %d\n", -ret); - goto errout_with_bch; - } - - if (!geo.geo_available) - { - fdbg("geometry failed: %d\n", -ret); - ret = -ENODEV; - goto errout_with_bch; - } - - if (!readonly && (!bch->inode->u.i_bops->write || !geo.geo_writeenabled)) - { - fdbg("write access not supported\n"); - ret = -EACCES; - goto errout_with_bch; - } - - /* Save the geometry info and complete initialization of the structure */ - - sem_init(&bch->sem, 0, 1); - bch->nsectors = geo.geo_nsectors; - bch->sectsize = geo.geo_sectorsize; - bch->sector = (size_t)-1; - bch->readonly = readonly; - - /* Allocate the sector I/O buffer */ - - bch->buffer = (FAR uint8_t *)kmalloc(bch->sectsize); - if (!bch->buffer) - { - fdbg("Failed to allocate sector buffer\n"); - ret = -ENOMEM; - goto errout_with_bch; - } - - *handle = bch; - return OK; - -errout_with_bch: - kfree(bch); - return ret; -} |