M25Qxx demos working in both SPI and QSPI modes.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9600 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 0 insertions, 509 deletions

diff --git a/os/ex/Micron/n25q128_spi.c b/os/ex/Micron/n25q128_spi.c
deleted file mode 100644
index 3c321cd8d..000000000
--- a/os/ex/Micron/n25q128_spi.c
+++ /dev/null
@@ -1,509 +0,0 @@
-/*
-    N25Q128 Flash Driver - Copyright (C) 2016 Giovanni Di Sirio
-
-    This file is part of ChibiOS.
-
-    ChibiOS 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 3 of the License, or
-    (at your option) any later version.
-
-    ChibiOS 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, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file    n25q128_spi.c
- * @brief   N25Q128 over SPI driver code.
- *
- * @addtogroup n25q128_spi
- * @{
- */
-
-#include "hal.h"
-
-#include "n25q128_spi.h"
-
-/*===========================================================================*/
-/* Driver local definitions.                                                 */
-/*===========================================================================*/
-
-#define PAGE_SIZE                           256U
-#define PAGE_MASK                           (PAGE_SIZE - 1U)
-
-#if N25Q128_USE_SUB_SECTORS == TRUE
-#define SECTOR_SIZE                         0x00001000U
-#define CMD_SECTOR_ERASE                    N25Q128_CMD_SUBSECTOR_ERASE
-#else
-#define SECTOR_SIZE                         0x00010000U
-#define CMD_SECTOR_ERASE                    N25Q128_CMD_SECTOR_ERASE
-#endif
-
-/*===========================================================================*/
-/* Driver exported variables.                                                */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Driver local variables and types.                                         */
-/*===========================================================================*/
-
-static const flash_descriptor_t *get_descriptor(void *instance);
-static flash_error_t read(void *instance, flash_address_t addr,
-                          uint8_t *rp, size_t n);
-static flash_error_t program(void *instance, flash_address_t addr,
-                             const uint8_t *pp, size_t n);
-static flash_error_t start_erase_all(void *instance);
-static flash_error_t start_erase_sector(void *instance, flash_sector_t sector);
-static flash_error_t query_erase(void *instance, uint32_t *msec);
-static flash_error_t verify_erase(void *instance, flash_sector_t sector);
-
-/**
- * @brief   Virtual methods table.
- */
-static const struct N25Q128DriverVMT n25q128_vmt = {
-  get_descriptor, read, program,
-  start_erase_all, start_erase_sector, query_erase, verify_erase
-};
-
-/**
- * @brief   N25Q128 descriptor.
- */
-static flash_descriptor_t descriptor = {
-  .attributes       = FLASH_ATTR_ERASED_IS_ONE | FLASH_ATTR_REWRITABLE |
-                      FLASH_ATTR_SUSPEND_ERASE_CAPABLE,
-  .page_size        = 256U,
-#if N25Q128_USE_SUB_SECTORS == TRUE
-  .sectors_count    = 4096U,
-#else
-  .sectors_count    = 256U,
-#endif
-  .sectors          = NULL,
-  .sectors_size     = SECTOR_SIZE,
-  .address          = 0U
-};
-
-/*===========================================================================*/
-/* Driver local functions.                                                   */
-/*===========================================================================*/
-
-#if N25Q128_SHARED_SPI == TRUE
-void flash_bus_acquire(N25Q128Driver *devp) {
-
-  spiAcquireBus(devp->config->spip);
-  spiStart(devp->config->spip, devp->config->spicfg);
-}
-
-void flash_bus_release(N25Q128Driver *devp) {
-
-  spiReleaseBus(devp->config->spip);
-}
-#else
-#define flash_bus_acquire(devp)
-#define flash_bus_release(devp)
-#endif
-
-static void flash_short_cmd(N25Q128Driver *devp, uint8_t cmd) {
-  uint8_t buf[1];
-
-  spiSelect(devp->config->spip);
-  buf[0] = cmd;
-  spiSend(devp->config->spip, 1, buf);
-  spiUnselect(devp->config->spip);
-}
-
-static void flash_send_cmd(N25Q128Driver *devp, uint8_t cmd) {
-  uint8_t buf[1];
-
-  buf[0] = cmd;
-  spiSend(devp->config->spip, 1, buf);
-}
-
-static void flash_send_cmd_addr(N25Q128Driver *devp,
-                              uint8_t cmd,
-                              flash_address_t addr) {
-  uint8_t buf[4];
-
-  buf[0] = cmd;
-  buf[1] = (uint8_t)(addr >> 16);
-  buf[2] = (uint8_t)(addr >> 8);
-  buf[3] = (uint8_t)(addr >> 0);
-  spiSend(devp->config->spip, 4, buf);
-}
-
-static flash_error_t flash_poll_status(N25Q128Driver *devp) {
-  SPIDriver *spip = devp->config->spip;
-  uint8_t sts;
-
-  do {
-#if N25Q128_NICE_WAITING == TRUE
-    osalThreadSleepMilliseconds(1);
-#endif
-    /* Read status command.*/
-    spiSelect(spip);
-    flash_send_cmd(devp, N25Q128_CMD_READ_FLAG_STATUS_REGISTER);
-    spiReceive(spip, 1, &sts);
-    spiUnselect(spip);
-  } while ((sts & N25Q128_STS_PROGRAM_ERASE) == 0U);
-
-  /* Checking for errors.*/
-  if ((sts & N25Q128_STS_ALL_ERRORS) != 0U) {
-    /* Clearing status register.*/
-    flash_send_cmd(devp, N25Q128_CMD_CLEAR_FLAG_STATUS_REGISTER);
-
-    /* Program operation failed.*/
-    return FLASH_ERROR_PROGRAM;
-  }
-
-  return FLASH_NO_ERROR;
-}
-
-static const flash_descriptor_t *get_descriptor(void *instance) {
-  N25Q128Driver *devp = (N25Q128Driver *)instance;
-
-  osalDbgCheck(instance != NULL);
-  osalDbgAssert((devp->state != FLASH_UNINIT) && (devp->state != FLASH_STOP),
-                "invalid state");
-
-  return &descriptor;
-}
-
-static flash_error_t read(void *instance, flash_address_t addr,
-                          uint8_t *rp, size_t n) {
-  N25Q128Driver *devp = (N25Q128Driver *)instance;
-  SPIDriver *spip = devp->config->spip;
-
-  osalDbgCheck((instance != NULL) && (rp != NULL) && (n > 0U));
-  osalDbgCheck((size_t)addr + n <= (size_t)descriptor.sectors_count *
-                                   (size_t)descriptor.sectors_size);
-  osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
-                "invalid state");
-
-  if (devp->state == FLASH_ERASE) {
-    return FLASH_BUSY_ERASING;
-  }
-
-  flash_bus_acquire(devp);
-  devp->state = FLASH_READ;
-
-  /* Read command.*/
-  spiSelect(spip);
-  flash_send_cmd_addr(devp, N25Q128_CMD_READ, addr);
-  spiReceive(spip, n, rp);
-  spiUnselect(spip);
-
-  devp->state = FLASH_READY;
-  flash_bus_release(devp);
-  return FLASH_NO_ERROR;
-}
-
-static flash_error_t program(void *instance, flash_address_t addr,
-                             const uint8_t *pp, size_t n) {
-  N25Q128Driver *devp = (N25Q128Driver *)instance;
-  SPIDriver *spip = devp->config->spip;
-
-  osalDbgCheck((instance != NULL) && (pp != NULL) && (n > 0U));
-  osalDbgCheck((size_t)addr + n <= (size_t)descriptor.sectors_count *
-                                   (size_t)descriptor.sectors_size);
-  osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
-                "invalid state");
-
-  if (devp->state == FLASH_ERASE) {
-    return FLASH_BUSY_ERASING;
-  }
-
-  flash_bus_acquire(devp);
-  devp->state = FLASH_PGM;
-
-  /* Data is programmed page by page.*/
-  while (n > 0U) {
-    flash_error_t err;
-
-    /* Data size that can be written in a single program page operation.*/
-    size_t chunk = (size_t)(((addr | PAGE_MASK) + 1U) - addr);
-    if (chunk > n) {
-      chunk = n;
-    }
-
-    /* Enabling write operation.*/
-    flash_short_cmd(devp, N25Q128_CMD_WRITE_ENABLE);
-    (void) spiPolledExchange(spip, 0xFF);   /* One frame delay.*/
-
-    /* Page program command.*/
-    spiSelect(spip);
-    flash_send_cmd_addr(devp, N25Q128_CMD_PAGE_PROGRAM, addr);
-    spiSend(spip, chunk, pp);
-    spiUnselect(spip);
-
-    /* Wait for status and check errors.*/
-    (void) spiPolledExchange(spip, 0xFF);   /* One frame delay.*/
-    err = flash_poll_status(devp);
-    if (err != FLASH_NO_ERROR) {
-      flash_bus_release(devp);
-      return err;
-    }
-
-    /* Next page.*/
-    addr += chunk;
-    pp   += chunk;
-    n    -= chunk;
-  }
-
-  devp->state = FLASH_READY;
-  flash_bus_release(devp);
-  return FLASH_NO_ERROR;
-}
-
-static flash_error_t start_erase_all(void *instance) {
-  N25Q128Driver *devp = (N25Q128Driver *)instance;
-  SPIDriver *spip = devp->config->spip;
-
-  osalDbgCheck(instance != NULL);
-  osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
-                "invalid state");
-
-  if (devp->state == FLASH_ERASE) {
-    return FLASH_BUSY_ERASING;
-  }
-
-  flash_bus_acquire(devp);
-  devp->state = FLASH_ERASE;
-
-  /* Enabling write operation.*/
-  flash_short_cmd(devp, N25Q128_CMD_WRITE_ENABLE);
-  (void) spiPolledExchange(spip, 0xFF);   /* One frame delay.*/
-
-  /* Bulk erase command.*/
-  flash_short_cmd(devp, N25Q128_CMD_BULK_ERASE);
-
-  devp->state = FLASH_READY;
-  flash_bus_release(devp);
-  return FLASH_NO_ERROR;
-}
-
-static flash_error_t start_erase_sector(void *instance, flash_sector_t sector) {
-  N25Q128Driver *devp = (N25Q128Driver *)instance;
-  SPIDriver *spip = devp->config->spip;
-  flash_address_t addr = (flash_address_t)(sector * SECTOR_SIZE);
-
-  osalDbgCheck(instance != NULL);
-  osalDbgCheck(sector < descriptor.sectors_count);
-  osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
-                "invalid state");
-
-  if (devp->state == FLASH_ERASE) {
-    return FLASH_BUSY_ERASING;
-  }
-
-  flash_bus_acquire(devp);
-  devp->state = FLASH_ERASE;
-
-  /* Enabling write operation.*/
-  flash_short_cmd(devp, N25Q128_CMD_WRITE_ENABLE);
-  (void) spiPolledExchange(spip, 0xFF);   /* One frame delay.*/
-
-  /* Sector erase command.*/
-  spiSelect(spip);
-  flash_send_cmd_addr(devp, CMD_SECTOR_ERASE, addr);
-  spiUnselect(spip);
-
-  devp->state = FLASH_READY;
-  flash_bus_release(devp);
-  return FLASH_NO_ERROR;
-}
-
-static flash_error_t verify_erase(void *instance, flash_sector_t sector) {
-  N25Q128Driver *devp = (N25Q128Driver *)instance;
-  SPIDriver *spip = devp->config->spip;
-  unsigned i;
-
-  osalDbgCheck(instance != NULL);
-  osalDbgCheck(sector < descriptor.sectors_count);
-  osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
-                "invalid state");
-
-  if (devp->state == FLASH_ERASE) {
-    return FLASH_BUSY_ERASING;
-  }
-
-  flash_bus_acquire(devp);
-  devp->state = FLASH_READ;
-
-  /* Read command.*/
-  spiSelect(spip);
-  flash_send_cmd_addr(devp, N25Q128_CMD_READ, (size_t)(sector * SECTOR_SIZE));
-  for (i = SECTOR_SIZE; i > 0U; i--) {
-    if (spiPolledExchange(spip, 0xFF) != 0xFF) {
-      flash_bus_release(devp);
-      return FLASH_ERROR_VERIFY;
-    }
-  }
-  spiUnselect(spip);
-
-  devp->state = FLASH_READY;
-  flash_bus_release(devp);
-  return FLASH_NO_ERROR;
-}
-
-static flash_error_t query_erase(void *instance, uint32_t *msec) {
-  N25Q128Driver *devp = (N25Q128Driver *)instance;
-  SPIDriver *spip = devp->config->spip;
-  uint8_t sts;
-
-  osalDbgCheck(instance != NULL);
-  osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
-                "invalid state");
-
-  /* If there is an erase in progress then the device must be checked.*/
-  if (devp->state == FLASH_ERASE) {
-
-    flash_bus_acquire(devp);
-
-    /* Read status command.*/
-    spiSelect(spip);
-    flash_send_cmd(devp, N25Q128_CMD_READ_FLAG_STATUS_REGISTER);
-    spiReceive(spip, 1, &sts);
-    spiUnselect(spip);
-
-    /* If the P/E bit is zero (busy) or the flash in a suspended state then
-       report that the operation is still in progress.*/
-    if (((sts & N25Q128_STS_PROGRAM_ERASE) == 0U) ||
-        ((sts & N25Q128_STS_ERASE_SUSPEND) != 0U)) {
-      flash_bus_release(devp);
-
-      /* Recommended time before polling again, this is a simplified
-         implementation.*/
-      if (msec != NULL) {
-        *msec = 1U;
-      }
-
-      return FLASH_BUSY_ERASING;
-    }
-
-    /* The device is ready to accept commands.*/
-    devp->state = FLASH_READY;
-
-    /* Checking for errors.*/
-    if ((sts & N25Q128_STS_ALL_ERRORS) != 0U) {
-      /* Clearing status register.*/
-      flash_short_cmd(devp, N25Q128_CMD_CLEAR_FLAG_STATUS_REGISTER);
-
-      /* Program operation failed.*/
-      return FLASH_ERROR_ERASE;
-    }
-
-    flash_bus_release(devp);
-  }
-
-  return FLASH_NO_ERROR;
-}
-
-/*===========================================================================*/
-/* Driver exported functions.                                                */
-/*===========================================================================*/
-
-/**
- * @brief   Initializes an instance.
- *
- * @param[out] devp     pointer to the @p N25Q128Driver object
- *
- * @init
- */
-void n25q128ObjectInit(N25Q128Driver *devp) {
-
-  osalDbgCheck(devp != NULL);
-
-  devp->vmt = &n25q128_vmt;
-  devp->state = FLASH_STOP;
-  devp->config = NULL;
-}
-
-/**
- * @brief   Configures and activates N25Q128 driver.
- *
- * @param[in] devp      pointer to the @p N25Q128Driver object
- * @param[in] config    pointer to the configuration
- *
- * @api
- */
-void n25q128Start(N25Q128Driver *devp, const N25Q128Config *config) {
-
-  osalDbgCheck((devp != NULL) && (config != NULL));
-  osalDbgAssert(devp->state != FLASH_UNINIT, "invalid state");
-
-  if (devp->state == FLASH_STOP) {
-    SPIDriver *spip = config->spip;
-
-    devp->config = config;
-    flash_bus_acquire(devp);
-
-    /* Reset Enable command.*/
-    flash_short_cmd(devp, N25Q128_CMD_RESET_ENABLE);
-
-    (void) spiPolledExchange(spip, 0xFF);   /* One frame delay.*/
-
-    /* Reset Memory command.*/
-    flash_short_cmd(devp, N25Q128_CMD_RESET_MEMORY);
-
-    devp->state = FLASH_READY;
-    flash_bus_release(devp);
-  }
-} 
-
-/**
- * @brief   Deactivates the N25Q128 driver.
- *
- * @param[in] devp       pointer to the @p N25Q128Driver object
- *
- * @api
- */
-void n25q128Stop(N25Q128Driver *devp) {
-  SPIDriver *spip = devp->config->spip;
-
-  osalDbgCheck(devp != NULL);
-  osalDbgAssert(devp->state != FLASH_UNINIT, "invalid state");
-
-  if (devp->state != FLASH_STOP) {
-    flash_bus_acquire(devp);
-
-    spiStop(spip);
-
-    devp->config = NULL;
-    devp->state = FLASH_STOP;
-    flash_bus_release(devp);
-  }
-}
-
-/**
- * @brief   Reads the device identifier.
- *
- * @param[in] devp      pointer to the @p N25Q128Driver object
- * @param[in] rp        pointer to the read buffer
- * @param[in] n         number of bytes to read (1..17)
- *
- * @api
- */
-void n25q128ReadId(N25Q128Driver *devp, uint8_t *rp, size_t n) {
-  SPIDriver *spip = devp->config->spip;
-
-  osalDbgCheck((devp != NULL) && (rp != NULL) && (n > 0U) && (n <= 17U));
-  osalDbgAssert(devp->state == FLASH_READY, "invalid state");
-
-  flash_bus_acquire(devp);
-  devp->state = FLASH_READ;
-
-  /* Read Id command.*/
-  spiSelect(spip);
-  flash_send_cmd(devp, N25Q128_CMD_READ_ID);
-  spiReceive(spip, n, rp);
-  spiUnselect(spip);
-
-  devp->state = FLASH_READY;
-  flash_bus_release(devp);
-}
-
-/** @} */