mirror of
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Update version of Reliance Edge.
This commit is contained in:
Richard Barry
parent
7cce089e40
commit
7fcc976248
16 changed files with 4069 additions and 3493 deletions
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@ -1,164 +1,198 @@
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/* ----> DO NOT REMOVE THE FOLLOWING NOTICE <----
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Copyright (c) 2014-2015 Datalight, Inc.
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All Rights Reserved Worldwide.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; use version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but "AS-IS," WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Businesses and individuals that for commercial or other reasons cannot
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comply with the terms of the GPLv2 license may obtain a commercial license
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before incorporating Reliance Edge into proprietary software for
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distribution in any form. Visit http://www.datalight.com/reliance-edge for
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more information.
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*/
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/** @file
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@brief Implements block device I/O using logical blocks as the units.
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The OS block device implementations operate on sectors. The core does I/O
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in terms of logical blocks: this module translates from logical blocks to
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sectors.
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*/
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#include <redfs.h>
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#include <redcore.h>
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/** @brief Read a range of logical blocks.
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@param bVolNum The volume whose block device is being read from.
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@param ulBlockStart The first block to read.
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@param ulBlockCount The number of blocks to read.
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@param pBuffer The buffer to populate with the data read.
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@return A negated ::REDSTATUS code indicating the operation result.
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@retval 0 Operation was successful.
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@retval -RED_EIO A disk I/O error occurred.
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@retval -RED_EINVAL Invalid parameters.
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*/
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REDSTATUS RedIoRead(
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uint8_t bVolNum,
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uint32_t ulBlockStart,
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uint32_t ulBlockCount,
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void *pBuffer)
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{
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REDSTATUS ret;
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if( (bVolNum >= REDCONF_VOLUME_COUNT)
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|| (ulBlockStart >= gaRedVolume[bVolNum].ulBlockCount)
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|| ((gaRedVolume[bVolNum].ulBlockCount - ulBlockStart) < ulBlockCount)
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|| (ulBlockCount == 0U)
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|| (pBuffer == NULL))
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{
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REDERROR();
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ret = -RED_EINVAL;
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}
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else
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{
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uint8_t bSectorShift = gaRedVolume[bVolNum].bBlockSectorShift;
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uint64_t ullSectorStart = (uint64_t)ulBlockStart << bSectorShift;
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uint32_t ulSectorCount = ulBlockCount << bSectorShift;
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REDASSERT(bSectorShift < 32U);
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REDASSERT((ulSectorCount >> bSectorShift) == ulBlockCount);
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ret = RedOsBDevRead(bVolNum, ullSectorStart, ulSectorCount, pBuffer);
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}
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CRITICAL_ASSERT(ret == 0);
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return ret;
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}
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#if REDCONF_READ_ONLY == 0
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/** @brief Write a range of logical blocks.
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@param bVolNum The volume whose block device is being written to.
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@param ulBlockStart The first block to write.
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@param ulBlockCount The number of blocks to write.
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@param pBuffer The buffer containing the data to write.
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@return A negated ::REDSTATUS code indicating the operation result.
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@retval 0 Operation was successful.
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@retval -RED_EIO A disk I/O error occurred.
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@retval -RED_EINVAL Invalid parameters.
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*/
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REDSTATUS RedIoWrite(
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uint8_t bVolNum,
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uint32_t ulBlockStart,
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uint32_t ulBlockCount,
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const void *pBuffer)
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{
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REDSTATUS ret;
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if( (bVolNum >= REDCONF_VOLUME_COUNT)
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|| (ulBlockStart >= gaRedVolume[bVolNum].ulBlockCount)
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|| ((gaRedVolume[bVolNum].ulBlockCount - ulBlockStart) < ulBlockCount)
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|| (ulBlockCount == 0U)
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|| (pBuffer == NULL))
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{
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REDERROR();
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ret = -RED_EINVAL;
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}
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else
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{
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uint8_t bSectorShift = gaRedVolume[bVolNum].bBlockSectorShift;
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uint64_t ullSectorStart = (uint64_t)ulBlockStart << bSectorShift;
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uint32_t ulSectorCount = ulBlockCount << bSectorShift;
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REDASSERT(bSectorShift < 32U);
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REDASSERT((ulSectorCount >> bSectorShift) == ulBlockCount);
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ret = RedOsBDevWrite(bVolNum, ullSectorStart, ulSectorCount, pBuffer);
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}
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CRITICAL_ASSERT(ret == 0);
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return ret;
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}
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/** @brief Flush any caches beneath the file system.
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@param bVolNum The volume number of the volume whose block device is being
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flushed.
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@return A negated ::REDSTATUS code indicating the operation result.
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@retval 0 Operation was successful.
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@retval -RED_EINVAL @p bVolNum is an invalid volume number.
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@retval -RED_EIO A disk I/O error occurred.
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*/
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REDSTATUS RedIoFlush(
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uint8_t bVolNum)
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{
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REDSTATUS ret;
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if(bVolNum >= REDCONF_VOLUME_COUNT)
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{
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REDERROR();
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ret = -RED_EINVAL;
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}
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else
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{
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ret = RedOsBDevFlush(bVolNum);
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}
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CRITICAL_ASSERT(ret == 0);
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return ret;
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}
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#endif /* REDCONF_READ_ONLY == 0 */
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/* ----> DO NOT REMOVE THE FOLLOWING NOTICE <----
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Copyright (c) 2014-2015 Datalight, Inc.
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All Rights Reserved Worldwide.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; use version 2 of the License.
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|
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This program is distributed in the hope that it will be useful,
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but "AS-IS," WITHOUT ANY WARRANTY; without even the implied warranty
|
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
|
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Businesses and individuals that for commercial or other reasons cannot
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comply with the terms of the GPLv2 license may obtain a commercial license
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before incorporating Reliance Edge into proprietary software for
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distribution in any form. Visit http://www.datalight.com/reliance-edge for
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more information.
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*/
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/** @file
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@brief Implements block device I/O using logical blocks as the units.
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The OS block device implementations operate on sectors. The core does I/O
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in terms of logical blocks: this module translates from logical blocks to
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sectors.
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If bBlockIoRetries is greater than 0 for the current volume, then this
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module will retry block device calls on failure up to the configured number
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of times. This behavior caters to the type of unreliable hardware and
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drivers that are sometimes found in the IoT world, where one operation may
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fail but the next may still succeed.
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*/
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#include <redfs.h>
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#include <redcore.h>
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/** @brief Read a range of logical blocks.
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@param bVolNum The volume whose block device is being read from.
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@param ulBlockStart The first block to read.
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@param ulBlockCount The number of blocks to read.
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@param pBuffer The buffer to populate with the data read.
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@return A negated ::REDSTATUS code indicating the operation result.
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@retval 0 Operation was successful.
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@retval -RED_EIO A disk I/O error occurred.
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@retval -RED_EINVAL Invalid parameters.
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*/
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REDSTATUS RedIoRead(
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uint8_t bVolNum,
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uint32_t ulBlockStart,
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uint32_t ulBlockCount,
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void *pBuffer)
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{
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REDSTATUS ret = 0;
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if( (bVolNum >= REDCONF_VOLUME_COUNT)
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|| (ulBlockStart >= gaRedVolume[bVolNum].ulBlockCount)
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|| ((gaRedVolume[bVolNum].ulBlockCount - ulBlockStart) < ulBlockCount)
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|| (ulBlockCount == 0U)
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|| (pBuffer == NULL))
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{
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REDERROR();
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ret = -RED_EINVAL;
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}
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else
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{
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uint8_t bSectorShift = gaRedVolume[bVolNum].bBlockSectorShift;
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uint64_t ullSectorStart = (uint64_t)ulBlockStart << bSectorShift;
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uint32_t ulSectorCount = ulBlockCount << bSectorShift;
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uint8_t bRetryIdx;
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REDASSERT(bSectorShift < 32U);
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REDASSERT((ulSectorCount >> bSectorShift) == ulBlockCount);
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for(bRetryIdx = 0U; bRetryIdx <= gpRedVolConf->bBlockIoRetries; bRetryIdx++)
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{
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ret = RedOsBDevRead(bVolNum, ullSectorStart, ulSectorCount, pBuffer);
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if(ret == 0)
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{
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break;
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}
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}
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}
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CRITICAL_ASSERT(ret == 0);
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return ret;
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}
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#if REDCONF_READ_ONLY == 0
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/** @brief Write a range of logical blocks.
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@param bVolNum The volume whose block device is being written to.
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@param ulBlockStart The first block to write.
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@param ulBlockCount The number of blocks to write.
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@param pBuffer The buffer containing the data to write.
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@return A negated ::REDSTATUS code indicating the operation result.
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@retval 0 Operation was successful.
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@retval -RED_EIO A disk I/O error occurred.
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@retval -RED_EINVAL Invalid parameters.
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*/
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REDSTATUS RedIoWrite(
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uint8_t bVolNum,
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uint32_t ulBlockStart,
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uint32_t ulBlockCount,
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const void *pBuffer)
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{
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REDSTATUS ret = 0;
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if( (bVolNum >= REDCONF_VOLUME_COUNT)
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|| (ulBlockStart >= gaRedVolume[bVolNum].ulBlockCount)
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|| ((gaRedVolume[bVolNum].ulBlockCount - ulBlockStart) < ulBlockCount)
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|| (ulBlockCount == 0U)
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|| (pBuffer == NULL))
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{
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REDERROR();
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ret = -RED_EINVAL;
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}
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else
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{
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uint8_t bSectorShift = gaRedVolume[bVolNum].bBlockSectorShift;
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uint64_t ullSectorStart = (uint64_t)ulBlockStart << bSectorShift;
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uint32_t ulSectorCount = ulBlockCount << bSectorShift;
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uint8_t bRetryIdx;
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REDASSERT(bSectorShift < 32U);
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REDASSERT((ulSectorCount >> bSectorShift) == ulBlockCount);
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for(bRetryIdx = 0U; bRetryIdx <= gpRedVolConf->bBlockIoRetries; bRetryIdx++)
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{
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ret = RedOsBDevWrite(bVolNum, ullSectorStart, ulSectorCount, pBuffer);
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if(ret == 0)
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{
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break;
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}
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}
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}
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CRITICAL_ASSERT(ret == 0);
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return ret;
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}
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/** @brief Flush any caches beneath the file system.
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@param bVolNum The volume number of the volume whose block device is being
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flushed.
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@return A negated ::REDSTATUS code indicating the operation result.
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@retval 0 Operation was successful.
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@retval -RED_EINVAL @p bVolNum is an invalid volume number.
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@retval -RED_EIO A disk I/O error occurred.
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*/
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REDSTATUS RedIoFlush(
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uint8_t bVolNum)
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{
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REDSTATUS ret = 0;
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if(bVolNum >= REDCONF_VOLUME_COUNT)
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{
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REDERROR();
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ret = -RED_EINVAL;
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}
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else
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{
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uint8_t bRetryIdx;
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for(bRetryIdx = 0U; bRetryIdx <= gpRedVolConf->bBlockIoRetries; bRetryIdx++)
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{
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ret = RedOsBDevFlush(bVolNum);
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if(ret == 0)
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{
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break;
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}
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}
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}
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CRITICAL_ASSERT(ret == 0);
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return ret;
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}
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#endif /* REDCONF_READ_ONLY == 0 */
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