diff options
Diffstat (limited to 'firmwares/wifishield/wifiHD/src/nvram.c')
| -rw-r--r-- | firmwares/wifishield/wifiHD/src/nvram.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/firmwares/wifishield/wifiHD/src/nvram.c b/firmwares/wifishield/wifiHD/src/nvram.c deleted file mode 100644 index 2c61c5f..0000000 --- a/firmwares/wifishield/wifiHD/src/nvram.c +++ /dev/null @@ -1,153 +0,0 @@ -/*! \page License - * Copyright (C) 2009, H&D Wireless AB All rights reserved. - * - * 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. The name of H&D Wireless AB may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY H&D WIRELESS AB ``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 EXPRESSLY AND - * SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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. - */ -#include <string.h> - -#include "compiler.h" -#include "preprocessor.h" -#include "board.h" -#include "power_clocks_lib.h" -#include "gpio.h" -#include "spi.h" -#include "conf_at45dbx.h" -#include "at45dbx.h" -#include <board_init.h> -#include <nvram.h> - - -static struct nvram { - uint8_t read; - void *data; - uint32_t len; - uint16_t off; -} PRIV; - -int nvram_init(void) -{ - spi_options_t spiOptions = { - .reg = AT45DBX_SPI_FIRST_NPCS, - .baudrate = AT45DBX_SPI_MASTER_SPEED, - .bits = AT45DBX_SPI_BITS, - .spck_delay = 0, - .trans_delay = 0, - .stay_act = 1, - .spi_mode = 0, - .modfdis = 1 - }; - - at45dbx_init(spiOptions, FPBA_HZ); - return 0; -} - - -/** - * Invoked by at45dbx driver - * - */ -void at45dbx_read_multiple_sector_callback(const void *psector) -{ - struct nvram *priv = &PRIV; - const uint8_t *buf = psector; - - if (!priv->read) - return; - - memcpy(priv->data, buf + priv->off, priv->len); -} - - -/** - * Invoked by at45dbx driver - * - */ -void at45dbx_write_multiple_sector_callback(void *psector) -{ - struct nvram *priv = &PRIV; - uint8_t *buf = psector; - memcpy(buf + priv->off, priv->data, priv->len); -} - - -/** - * Write/read any number bytes into any offset of nor flash by taking care - * of cases where the length is not aligned to the sector size or where - * the addr is not aligned to the sector offsets. - * - */ -static int nvram_rw(uint32_t addr, void *data, uint16_t len, int write) -{ - struct nvram *priv = &PRIV; - priv->read = write ? 0 : 1; - - while (len) { - uint32_t sector = addr / AT45DBX_SECTOR_SIZE; - priv->data = data; - priv->off = addr % AT45DBX_SECTOR_SIZE; - priv->len = AT45DBX_SECTOR_SIZE; - - if (len < AT45DBX_SECTOR_SIZE) - priv->len = len; - - if (priv->len > AT45DBX_SECTOR_SIZE - priv->off) - priv->len = AT45DBX_SECTOR_SIZE - priv->off; - - at45dbx_read_open(sector); - at45dbx_read_multiple_sector(1); - at45dbx_read_close(); - - if (write) { - at45dbx_write_open(sector); - at45dbx_write_multiple_sector(1); - at45dbx_write_close(); - } - - data += priv->len; - len -= priv->len; - addr += priv->len; - } - - return 0; -} - -/** - * Write any number bytes into any offset of nor flash. - * - */ -int nvram_write(uint32_t addr, const void *data, uint32_t len) -{ - return nvram_rw(addr, (void *) data, len, 1); -} - - -/** - * Read any number bytes into any offset of nor flash. - * - */ -int nvram_read(uint32_t addr, void *data, uint32_t len) -{ - return nvram_rw(addr, data, len, 0); -} |