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authorKeith Rothman <537074+litghost@users.noreply.github.com>2021-02-17 10:18:24 -0800
committerKeith Rothman <537074+litghost@users.noreply.github.com>2021-02-17 12:03:17 -0800
commit558a753d3da5a2243a74b8d4e1c24044bdfb5c2e (patch)
tree391052b070b0965e5a73d27c204089c042499275 /3rdparty/googletest/googlemock/scripts/gmock_doctor.py
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Refactor "get only from iterator" to a utility.
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
Diffstat (limited to '3rdparty/googletest/googlemock/scripts/gmock_doctor.py')
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generated by cgit v1.2.3 (git 2.25.1) at 2025-08-29 04:29:07 +0000
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/*
    ChibiOS/RT - Copyright (C) 2014 Uladzimir Pylinsky aka barthess

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
*/

/**
 * @file    nand.c
 * @brief   NAND Driver code.
 *
 * @addtogroup NAND
 * @{
 */

#include "hal.h"

#if (HAL_USE_NAND == TRUE) || defined(__DOXYGEN__)

#include "string.h" /* for memset */

/*===========================================================================*/
/* Driver local definitions.                                                 */
/*===========================================================================*/

/*===========================================================================*/
/* Driver exported variables.                                                */
/*===========================================================================*/

/*===========================================================================*/
/* Driver local types.                                                       */
/*===========================================================================*/

/*===========================================================================*/
/* Driver local variables.                                                   */
/*===========================================================================*/

/*===========================================================================*/
/* Driver local functions.                                                   */
/*===========================================================================*/

/**
 * @brief   Check page size.
 *
 * @param[in] page_data_size      size of page data area
 *
 * @notapi
 */
static void pagesize_check(size_t page_data_size) {

  /* Page size out of bounds.*/
  osalDbgCheck((page_data_size >= NAND_MIN_PAGE_SIZE) &&
      (page_data_size <= NAND_MAX_PAGE_SIZE));

  /* Page size must be power of 2.*/
  osalDbgCheck(((page_data_size - 1) & page_data_size) == 0);
}

/**
 * @brief   Translate block-page-offset scheme to NAND internal address.
 *
 * @param[in] cfg         pointer to the @p NANDConfig from
 *                        corresponding NAND driver
 * @param[in] block       block number
 * @param[in] page        page number related to begin of block
 * @param[in] page_offset data offset related to begin of page
 * @param[out] addr       buffer to store calculated address
 * @param[in] addr_len    length of address buffer
 *
 * @notapi
 */
static void calc_addr(const NANDConfig *cfg, uint32_t block, uint32_t page,
                      uint32_t page_offset, uint8_t *addr, size_t addr_len) {
  size_t i = 0;
  uint32_t row = 0;

  /* Incorrect buffer length.*/
  osalDbgCheck(cfg->rowcycles + cfg->colcycles == addr_len);
  osalDbgCheck((block < cfg->blocks) && (page < cfg->pages_per_block) &&
             (page_offset < cfg->page_data_size + cfg->page_spare_size));

  /* convert address to NAND specific */
  memset(addr, 0, addr_len);
  row = (block * cfg->pages_per_block) + page;
  for (i=0; i<cfg->colcycles; i++){
    addr[i] = page_offset & 0xFF;
    page_offset = page_offset >> 8;
  }
  for (; i<addr_len; i++){
    addr[i] = row & 0xFF;
    row = row >> 8;
  }
}

/**
 * @brief   Translate block number to NAND internal address.
 * @note    This function designed for erasing purpose.
 *
 * @param[in] cfg       pointer to the @p NANDConfig from
 *                      corresponding NAND driver
 * @param[in] block     block number
 * @param[out] addr     buffer to store calculated address
 * @param[in] addr_len  length of address buffer
 *
 * @notapi
 */
static void calc_blk_addr(const NANDConfig *cfg, uint32_t block,
                          uint8_t *addr, size_t addr_len) {
  size_t i = 0;
  uint32_t row = 0;

  /* Incorrect buffer length.*/
  osalDbgCheck(cfg->rowcycles == addr_len);
  osalDbgCheck((block < cfg->blocks));

  /* convert address to NAND specific */
  memset(addr, 0, addr_len);
  row = block * cfg->pages_per_block;
  for (i=0; i<addr_len; i++){
    addr[i] = row & 0xFF;
    row = row >> 8;
  }
}

/**
 * @brief   Read block badness mark directly from NAND memory array.
 *
 * @param[in] nandp         pointer to the @p NANDDriver object
 * @param[in] block         block number
 *
 * @return                  block condition
 * @retval true             if the block is bad.
 * @retval false            if the block is good.
 *
 * @notapi
 */
static bool read_is_block_bad(NANDDriver *nandp, size_t block) {

  if (0xFF != nandReadBadMark(nandp, block, 0))
    return true;
  if (0xFF != nandReadBadMark(nandp, block, 1))
    return true;

  return false;
}

/**
 * @brief   Scan for bad blocks and fill map with their numbers.
 *
 * @param[in] nandp         pointer to the @p NANDDriver object
 *
 * @notapi
 */
static void scan_bad_blocks(NANDDriver *nandp) {

  const size_t blocks = nandp->config->blocks;
  size_t b;

  osalDbgCheck(bitmapGetBitsCount(nandp->bb_map) >= blocks);

  /* clear map just to be safe */
  bitmapObjectInit(nandp->bb_map, 0);

  /* now write numbers of bad block to map */
  for (b=0; b<blocks; b++) {
    if (read_is_block_bad(nandp, b)) {
      bitmapSet(nandp->bb_map, b);
    }
  }
}

/*===========================================================================*/
/* Driver exported functions.                                                */
/*===========================================================================*/

/**
 * @brief   NAND Driver initialization.
 * @note    This function is implicitly invoked by @p halInit(), there is
 *          no need to explicitly initialize the driver.
 *
 * @init
 */
void nandInit(void) {

  nand_lld_init();
}

/**
 * @brief   Initializes the standard part of a @p NANDDriver structure.
 *
 * @param[out] nandp        pointer to the @p NANDDriver object
 *
 * @init
 */
void nandObjectInit(NANDDriver *nandp) {

#if NAND_USE_MUTUAL_EXCLUSION
#if CH_CFG_USE_MUTEXES
  chMtxObjectInit(&nandp->mutex);
#else
  chSemObjectInit(&nandp->semaphore, 1);
#endif /* CH_CFG_USE_MUTEXES */
#endif /* NAND_USE_MUTUAL_EXCLUSION */

  nandp->state  = NAND_STOP;
  nandp->config = NULL;
}

/**
 * @brief   Configures and activates the NAND peripheral.
 *
 * @param[in] nandp         pointer to the @p NANDDriver object
 * @param[in] config        pointer to the @p NANDConfig object
 * @param[in] bb_map        pointer to the bad block map or @NULL if not need
 *
 * @api
 */
void nandStart(NANDDriver *nandp, const NANDConfig *config, bitmap_t *bb_map) {

  osalDbgCheck((nandp != NULL) && (config != NULL));
  osalDbgAssert((nandp->state == NAND_STOP) ||
      (nandp->state == NAND_READY),
      "invalid state");

  nandp->config = config;
  pagesize_check(nandp->config->page_data_size);
  nand_lld_start(nandp);
  nandp->state = NAND_READY;

  if (NULL != bb_map) {
    nandp->bb_map = bb_map;
    scan_bad_blocks(nandp);
  }
}

/**
 * @brief   Deactivates the NAND peripheral.
 *
 * @param[in] nandp         pointer to the @p NANDDriver object
 *
 * @api
 */
void nandStop(NANDDriver *nandp) {

  osalDbgCheck(nandp != NULL);
  osalDbgAssert((nandp->state == NAND_STOP) ||
      (nandp->state == NAND_READY),
      "invalid state");
  nand_lld_stop(nandp);
  nandp->state = NAND_STOP;
}

/**
 * @brief   Read whole page.
 *
 * @param[in] nandp         pointer to the @p NANDDriver object
 * @param[in] block         block number
 * @param[in] page          page number related to begin of block
 * @param[out] data         buffer to store data
 * @param[in] datalen       length of data buffer
 *
 * @api
 */
void nandReadPageWhole(NANDDriver *nandp, uint32_t block, uint32_t page,
                       uint8_t *data, size_t datalen) {

  const NANDConfig *cfg = nandp->config;
  uint8_t addrbuf[8];
  size_t addrlen = cfg->rowcycles + cfg->colcycles;

  osalDbgCheck((nandp != NULL) && (data != NULL));
  osalDbgCheck((datalen <= (cfg->page_data_size + cfg->page_spare_size)));
  osalDbgAssert(nandp->state == NAND_READY, "invalid state");

  calc_addr(cfg, block, page, 0, addrbuf, addrlen);