tar'd chibi

1 files changed, 0 insertions, 404 deletions

diff --git a/ChibiOS_16.1.5/community/os/hal/src/hal_ee25xx.c b/ChibiOS_16.1.5/community/os/hal/src/hal_ee25xx.c
deleted file mode 100644
index 102aef8..0000000
--- a/ChibiOS_16.1.5/community/os/hal/src/hal_ee25xx.c
+++ /dev/null
@@ -1,404 +0,0 @@
-/*
-  Copyright (c) 2013 Timon Wong
-
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to deal
-  in the Software without restriction, including without limitation the rights
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in all
-  copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
-*/
-
-/*
-  Copyright 2012 Uladzimir Pylinski aka barthess.
-  You may use this work without restrictions, as long as this notice is included.
-  The work is provided "as is" without warranty of any kind, neither express nor implied.
-*/
-
-/*****************************************************************************
- * DATASHEET NOTES
- *****************************************************************************
-Write cycle time (byte or page) - 5 ms
-
-Note:
-  Page write operations are limited to writing bytes within a single physical
-  page, regardless of the number of bytes actually being written. Physical page
-  boundaries start at addresses that are integer multiples of the page buffer
-  size (or page size and end at addresses that are integer multiples of
-  [page size]. If a Page Write command attempts to write across a physical
-  page boundary, the result is that the data wraps around to the beginning of
-  the current page (overwriting data previously stored there), instead of
-  being written to the next page as might be expected.
-*********************************************************************/
-
-#include "hal_ee25xx.h"
-#include <string.h>
-
-#if (defined(HAL_USE_EEPROM) && HAL_USE_EEPROM && EEPROM_USE_EE25XX) || defined(__DOXYGEN__)
-
-/**
- * @name Commands of 25XX chip.
- * @{
- */
-#define CMD_READ    0x03  /**< @brief Read data from memory array beginning at
-                               selected address. */
-#define CMD_WRITE   0x02  /**< @brief Write data to memory array beginning at
-                               selected address. */
-#define CMD_WRDI    0x04  /**< Reset the write enable latch (disable write
-                               operations). */
-#define CMD_WREN    0x06  /**< Set the write enable latch (enable write
-                               operations). */
-#define CMD_RDSR    0x05  /**< Read STATUS register. */
-#define CMD_WRSR    0x01  /**< Write STATUS register. */
-
-/** @} */
-
-/**
- * @name Status of 25XX chip.
- * @{}
- */
-#define STAT_BP1    0x08  /**< @brief Block protection (high). */
-#define STAT_BP0    0x04  /**< @brief Block protection (low). */
-#define STAT_WEL    0x02  /**< @brief Write enable latch. */
-#define STAT_WIP    0x01  /**< @brief Write-In-Progress. */
-
-/** @} */
-
-/**
- * @brief 25XX low level write then read rountine.
- *
- * @param[in]  eepcfg pointer to configuration structure of eeprom file.
- * @param[in]  txbuf  pointer to buffer to be transfered.
- * @param[in]  txlen  number of bytes to be transfered.
- * @param[out] rxbuf  pointer to buffer to be received.
- * @param[in]  rxlen  number of bytes to be received.
- */
-static void ll_25xx_transmit_receive(const SPIEepromFileConfig *eepcfg,
-                                     const uint8_t *txbuf, size_t txlen,
-                                     uint8_t *rxbuf, size_t rxlen) {
-
-#if SPI_USE_MUTUAL_EXCLUSION
-  spiAcquireBus(eepcfg->spip);
-#endif
-  spiSelect(eepcfg->spip);
-  spiSend(eepcfg->spip, txlen, txbuf);
-  if (rxlen) /* Check if receive is needed. */
-      spiReceive(eepcfg->spip, rxlen, rxbuf);
-  spiUnselect(eepcfg->spip);
-
-#if SPI_USE_MUTUAL_EXCLUSION
-  spiReleaseBus(eepcfg->spip);
-#endif
-}
-
-/**
- * @brief Check whether the device is busy (writing in progress).
- *
- * @param[in] eepcfg   pointer to configuration structure of eeprom file.
- * @return @p true on busy.
- */
-static bool ll_eeprom_is_busy(const SPIEepromFileConfig *eepcfg) {
-
-  uint8_t cmd = CMD_RDSR;
-  uint8_t stat;
-  ll_25xx_transmit_receive(eepcfg, &cmd, 1, &stat, 1);
-  if (stat & STAT_WIP)
-    return TRUE;
-  return FALSE;
-}
-
-/**
- * @brief Lock device.
- *
- * @param[in] eepcfg  pointer to configuration structure of eeprom file.
- */
-static void ll_eeprom_lock(const SPIEepromFileConfig *eepcfg) {
-
-  uint8_t cmd = CMD_WRDI;
-  ll_25xx_transmit_receive(eepcfg, &cmd, 1, NULL, 0);
-}
-
-/**
- * @brief Unlock device.
- *
- * @param[in] eepcfg  pointer to configuration structure of eeprom file.
- */
-static void ll_eeprom_unlock(const SPIEepromFileConfig *eepcfg) {
-
-  uint8_t cmd = CMD_WREN;
-  ll_25xx_transmit_receive(eepcfg, &cmd, 1, NULL, 0);
-}
-
-/**
- * @brief   Prepare byte sequence for command and address
- *
- * @param[in] seq   pointer to first 3byte sequence
- * @param[in] size  size of the eeprom device
- * @param[in] cmd   command
- * @param[in] addr  address
- * @return number of bytes of this sequence
- */
-static uint8_t ll_eeprom_prepare_seq(uint8_t *seq, uint32_t size, uint8_t cmd,
-                                     uint32_t addr) {
-
-  seq[0] = ((uint8_t)cmd & 0xff);
-
-  if (size > 0xffffUL) {
-    /* High density, 24bit address. */
-    seq[1] = (uint8_t)((addr >> 16) & 0xff);
-    seq[2] = (uint8_t)((addr >> 8) & 0xff);
-    seq[3] = (uint8_t)(addr & 0xff);
-    return 4;
-  }
-  else if (size > 0x00ffUL) {
-    /* Medium density, 16bit address. */
-    seq[1] = (uint8_t)((addr >> 8) & 0xff);
-    seq[2] = (uint8_t)(addr & 0xff);
-    return 3;
-  }
-
-  /* Low density, 8bit address. */
-  seq[1] = (uint8_t)(addr & 0xff);
-  return 2;
-}
-
-/**
- * @brief   EEPROM read routine.
- *
- * @param[in]  eepcfg   pointer to configuration structure of eeprom file.
- * @param[in]  offset   addres of 1-st byte to be read.
- * @param[out] data     pointer to buffer with data to be written.
- * @param[in]  len      number of bytes to be red.
- */
-static msg_t ll_eeprom_read(const SPIEepromFileConfig *eepcfg, uint32_t offset,
-                            uint8_t *data, size_t len) {
-
-  uint8_t txbuff[4];
-  uint8_t txlen;
-
-  osalDbgAssert(((len <= eepcfg->size) && ((offset + len) <= eepcfg->size)),
-             "out of device bounds");
-
-  if (eepcfg->spip->state != SPI_READY)
-      return MSG_RESET;
-
-  txlen = ll_eeprom_prepare_seq(txbuff, eepcfg->size, CMD_READ,
-                                (offset + eepcfg->barrier_low));
-  ll_25xx_transmit_receive(eepcfg, txbuff, txlen, data, len);
-
-  return MSG_OK;
-}
-
-/**
- * @brief   EEPROM write routine.
- * @details Function writes data to EEPROM.
- * @pre     Data must be fit to single EEPROM page.
- *
- * @param[in] eepcfg  pointer to configuration structure of eeprom file.
- * @param[in] offset  addres of 1-st byte to be writen.
- * @param[in] data    pointer to buffer with data to be written.
- * @param[in] len     number of bytes to be written.
- */
-static msg_t ll_eeprom_write(const SPIEepromFileConfig *eepcfg, uint32_t offset,
-                             const uint8_t *data, size_t len) {
-
-  uint8_t txbuff[4];
-  uint8_t txlen;
-  systime_t now;
-
-  osalDbgAssert(((len <= eepcfg->size) && ((offset + len) <= eepcfg->size)),
-             "out of device bounds");
-  osalDbgAssert((((offset + eepcfg->barrier_low) / eepcfg->pagesize) ==
-              (((offset + eepcfg->barrier_low) + len - 1) / eepcfg->pagesize)),
-             "data can not be fitted in single page");
-
-  if (eepcfg->spip->state != SPI_READY)
-      return MSG_RESET;
-
-  /* Unlock array for writting. */
-  ll_eeprom_unlock(eepcfg);
-
-#if SPI_USE_MUTUAL_EXCLUSION
-  spiAcquireBus(eepcfg->spip);
-#endif
-
-  spiSelect(eepcfg->spip);
-  txlen = ll_eeprom_prepare_seq(txbuff, eepcfg->size, CMD_WRITE,
-                                (offset + eepcfg->barrier_low));
-  spiSend(eepcfg->spip, txlen, txbuff);
-  spiSend(eepcfg->spip, len, data);
-  spiUnselect(eepcfg->spip);
-
-#if SPI_USE_MUTUAL_EXCLUSION
-  spiReleaseBus(eepcfg->spip);
-#endif
-
-  /* Wait until EEPROM process data. */
-  now = chVTGetSystemTimeX();
-  while (ll_eeprom_is_busy(eepcfg)) {
-    if ((chVTGetSystemTimeX() - now) > eepcfg->write_time) {
-      return MSG_TIMEOUT;
-    }
-
-    chThdYield();
-  }
-
-  /* Lock array preventing unexpected access */
-  ll_eeprom_lock(eepcfg);
-  return MSG_OK;
-}
-
-/**
- * @brief   Determines and returns size of data that can be processed
- */
-static size_t __clamp_size(void *ip, size_t n) {
-
-  if (((size_t)eepfs_getposition(ip) + n) > (size_t)eepfs_getsize(ip))
-    return eepfs_getsize(ip) - eepfs_getposition(ip);
-  else
-    return n;
-}
-
-/**
- * @brief   Write data that can be fitted in one page boundary
- */
-static msg_t __fitted_write(void *ip, const uint8_t *data, size_t len, uint32_t *written) {
-
-  msg_t status = MSG_RESET;
-
-  osalDbgAssert(len != 0, "something broken in hi level part");
-
-  status = ll_eeprom_write(((SPIEepromFileStream *)ip)->cfg,
-                           eepfs_getposition(ip), data, len);
-  if (status == MSG_OK) {
-    *written += len;
-    eepfs_lseek(ip, eepfs_getposition(ip) + len);
-  }
-  return status;
-}
-
-/**
- * @brief     Write data to EEPROM.
- * @details   Only one EEPROM page can be written at once. So fucntion
- *            splits large data chunks in small EEPROM transactions if needed.
- * @note      To achieve the maximum effectivity use write operations
- *            aligned to EEPROM page boundaries.
- */
-static size_t write(void *ip, const uint8_t *bp, size_t n) {
-
-  size_t   len = 0;     /* bytes to be written at one trasaction */
-  uint32_t written; /* total bytes successfully written */
-  uint16_t pagesize;
-  uint32_t firstpage;
-  uint32_t lastpage;
-
-  volatile const SPIEepromFileConfig *cfg = ((SPIEepromFileStream *)ip)->cfg;
-
-  osalDbgCheck((ip != NULL) && (((SPIEepromFileStream *)ip)->vmt != NULL));
-
-  if (n == 0)
-    return 0;
-
-  n = __clamp_size(ip, n);
-  if (n == 0)
-    return 0;
-
-  pagesize  = cfg->pagesize;
-  firstpage = (cfg->barrier_low + eepfs_getposition(ip)) / pagesize;
-  lastpage  = ((cfg->barrier_low + eepfs_getposition(ip) + n) - 1) / pagesize;
-
-  written = 0;
-  /* data fitted in single page */
-  if (firstpage == lastpage) {
-    len = n;
-    __fitted_write(ip, bp, len, &written);
-    bp += len;
-    return written;
-  }
-  else {
-    /* write first piece of data to first page boundary */
-    len =  ((firstpage + 1) * pagesize) - eepfs_getposition(ip);
-    len -= cfg->barrier_low;
-    __fitted_write(ip, bp, len, &written);
-    bp += len;
-
-    /* now writes blocks at a size of pages (may be no one) */
-    while ((n - written) > pagesize) {
-      len = pagesize;
-      if (__fitted_write(ip, bp, len, &written) != MSG_OK) // Fixed: Would increase bp forever and crash in case of timeouts...
-        return written;
-
-      bp += len;
-    }
-
-
-    /* wrtie tail */
-    len = n - written;
-    if (len == 0)
-      return written;
-    else {
-      __fitted_write(ip, bp, len, &written);
-    }
-  }
-
-  return written;
-}
-
-/**
- * Read some bytes from current position in file. After successful
- * read operation the position pointer will be increased by the number
- * of read bytes.
- */
-static size_t read(void *ip, uint8_t *bp, size_t n) {
-
-  msg_t status = MSG_OK;
-
-  osalDbgCheck((ip != NULL) && (((EepromFileStream *)ip)->vmt != NULL));
-
-  if (n == 0)
-    return 0;
-
-  n = __clamp_size(ip, n);
-  if (n == 0)
-    return 0;
-
-  /* call low level function */
-  status = ll_eeprom_read(((SPIEepromFileStream *)ip)->cfg,
-                          eepfs_getposition(ip), bp, n);
-  if (status != MSG_OK)
-    return 0;
-  else {
-    eepfs_lseek(ip, (eepfs_getposition(ip) + n));
-    return n;
-  }
-}
-
-static const struct EepromFileStreamVMT vmt = {
-  write,
-  read,
-  eepfs_put,
-  eepfs_get,
-  eepfs_close,
-  eepfs_geterror,
-  eepfs_getsize,
-  eepfs_getposition,
-  eepfs_lseek,
-};
-
-EepromDevice eepdev_25xx = {
-  EEPROM_DEV_25XX,
-  &vmt
-};
-
-#endif /* EEPROM_USE_EE25XX */