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Diffstat (limited to 'gpxe/src/drivers/nvs/nvs.c')
-rw-r--r--gpxe/src/drivers/nvs/nvs.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/gpxe/src/drivers/nvs/nvs.c b/gpxe/src/drivers/nvs/nvs.c
deleted file mode 100644
index 7252808b..00000000
--- a/gpxe/src/drivers/nvs/nvs.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stdint.h>
-#include <string.h>
-#include <errno.h>
-#include <assert.h>
-#include <gpxe/nvs.h>
-
-/** @file
- *
- * Non-volatile storage
- *
- */
-
-/**
- * Read from non-volatile storage device
- *
- * @v nvs NVS device
- * @v address Address from which to read
- * @v data Data buffer
- * @v len Length of data buffer
- * @ret rc Return status code
- */
-int nvs_read ( struct nvs_device *nvs, unsigned int address,
- void *data, size_t len ) {
- size_t frag_len;
- int rc;
-
- /* We don't even attempt to handle buffer lengths that aren't
- * an integral number of words.
- */
- assert ( ( len & ( ( 1 << nvs->word_len_log2 ) - 1 ) ) == 0 );
-
- while ( len ) {
-
- /* Calculate space remaining up to next block boundary */
- frag_len = ( ( nvs->block_size -
- ( address & ( nvs->block_size - 1 ) ) )
- << nvs->word_len_log2 );
-
- /* Limit to space remaining in buffer */
- if ( frag_len > len )
- frag_len = len;
-
- /* Read this portion of the buffer from the device */
- if ( ( rc = nvs->read ( nvs, address, data, frag_len ) ) != 0 )
- return rc;
-
- /* Update parameters */
- data += frag_len;
- address += ( frag_len >> nvs->word_len_log2 );
- len -= frag_len;
- }
-
- return 0;
-}
-
-/**
- * Verify content of non-volatile storage device
- *
- * @v nvs NVS device
- * @v address Address from which to read
- * @v data Data to compare against
- * @v len Length of data buffer
- * @ret rc Return status code
- */
-static int nvs_verify ( struct nvs_device *nvs, unsigned int address,
- const void *data, size_t len ) {
- uint8_t read_data[len];
- int rc;
-
- /* Read data into temporary buffer */
- if ( ( rc = nvs_read ( nvs, address, read_data, len ) ) != 0 )
- return rc;
-
- /* Compare data */
- if ( memcmp ( data, read_data, len ) != 0 ) {
- DBG ( "NVS %p verification failed at %#04x+%zd\n",
- nvs, address, len );
- return -EIO;
- }
-
- return 0;
-}
-
-/**
- * Write to non-volatile storage device
- *
- * @v nvs NVS device
- * @v address Address to which to write
- * @v data Data buffer
- * @v len Length of data buffer
- * @ret rc Return status code
- */
-int nvs_write ( struct nvs_device *nvs, unsigned int address,
- const void *data, size_t len ) {
- size_t frag_len;
- int rc;
-
- /* We don't even attempt to handle buffer lengths that aren't
- * an integral number of words.
- */
- assert ( ( len & ( ( 1 << nvs->word_len_log2 ) - 1 ) ) == 0 );
-
- while ( len ) {
-
- /* Calculate space remaining up to next block boundary */
- frag_len = ( ( nvs->block_size -
- ( address & ( nvs->block_size - 1 ) ) )
- << nvs->word_len_log2 );
-
- /* Limit to space remaining in buffer */
- if ( frag_len > len )
- frag_len = len;
-
- /* Write this portion of the buffer to the device */
- if ( ( rc = nvs->write ( nvs, address, data, frag_len ) ) != 0)
- return rc;
-
- /* Read back and verify data */
- if ( ( rc = nvs_verify ( nvs, address, data, frag_len ) ) != 0)
- return rc;
-
- /* Update parameters */
- data += frag_len;
- address += ( frag_len >> nvs->word_len_log2 );
- len -= frag_len;
- }
-
- return 0;
-}