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771 lines
21 KiB
C
771 lines
21 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file hal_serial_nor.c
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* @brief Serial NOR serial flash driver code.
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*
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* @addtogroup HAL_SERIAL_NOR
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* @{
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*/
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#include "hal.h"
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#include "hal_serial_nor.h"
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/*===========================================================================*/
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/* Driver local definitions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables and types. */
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/*===========================================================================*/
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static const flash_descriptor_t *snor_get_descriptor(void *instance);
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static flash_error_t snor_read(void *instance, flash_offset_t offset,
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size_t n, uint8_t *rp);
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static flash_error_t snor_program(void *instance, flash_offset_t offset,
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size_t n, const uint8_t *pp);
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static flash_error_t snor_start_erase_all(void *instance);
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static flash_error_t snor_start_erase_sector(void *instance,
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flash_sector_t sector);
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static flash_error_t snor_verify_erase(void *instance,
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flash_sector_t sector);
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static flash_error_t snor_query_erase(void *instance, uint32_t *msec);
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static flash_error_t snor_read_sfdp(void *instance, flash_offset_t offset,
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size_t n, uint8_t *rp);
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/**
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* @brief Virtual methods table.
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*/
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static const struct SNORDriverVMT snor_vmt = {
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(size_t)0,
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snor_get_descriptor, snor_read, snor_program,
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snor_start_erase_all, snor_start_erase_sector,
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snor_query_erase, snor_verify_erase,
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snor_read_sfdp
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};
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/**
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* @brief Returns a pointer to the device descriptor.
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*
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* @param[in] instance instance pointer
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* @return Pointer to a static descriptor structure.
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*/
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static const flash_descriptor_t *snor_get_descriptor(void *instance) {
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SNORDriver *devp = (SNORDriver *)instance;
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osalDbgCheck(instance != NULL);
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osalDbgAssert((devp->state != FLASH_UNINIT) && (devp->state != FLASH_STOP),
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"invalid state");
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return &snor_descriptor;
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}
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static flash_error_t snor_read(void *instance, flash_offset_t offset,
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size_t n, uint8_t *rp) {
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SNORDriver *devp = (SNORDriver *)instance;
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flash_error_t err;
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osalDbgCheck((instance != NULL) && (rp != NULL) && (n > 0U));
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osalDbgCheck((size_t)offset + n <= (size_t)snor_descriptor.sectors_count *
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(size_t)snor_descriptor.sectors_size);
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osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
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"invalid state");
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if (devp->state == FLASH_ERASE) {
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return FLASH_BUSY_ERASING;
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}
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/* Bus acquired.*/
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bus_acquire(devp->config->busp, devp->config->buscfg);
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/* FLASH_READY state while the operation is performed.*/
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devp->state = FLASH_READ;
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/* Actual read implementation.*/
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err = snor_device_read(devp, offset, n, rp);
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/* Ready state again.*/
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devp->state = FLASH_READY;
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/* Bus released.*/
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bus_release(devp->config->busp);
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return err;
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}
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static flash_error_t snor_program(void *instance, flash_offset_t offset,
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size_t n, const uint8_t *pp) {
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SNORDriver *devp = (SNORDriver *)instance;
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flash_error_t err;
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osalDbgCheck((instance != NULL) && (pp != NULL) && (n > 0U));
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osalDbgCheck((size_t)offset + n <= (size_t)snor_descriptor.sectors_count *
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(size_t)snor_descriptor.sectors_size);
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osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
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"invalid state");
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if (devp->state == FLASH_ERASE) {
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return FLASH_BUSY_ERASING;
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}
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/* Bus acquired.*/
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bus_acquire(devp->config->busp, devp->config->buscfg);
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/* FLASH_PGM state while the operation is performed.*/
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devp->state = FLASH_PGM;
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/* Actual program implementation.*/
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err = snor_device_program(devp, offset, n, pp);
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/* Ready state again.*/
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devp->state = FLASH_READY;
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/* Bus released.*/
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bus_release(devp->config->busp);
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return err;
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}
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static flash_error_t snor_start_erase_all(void *instance) {
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SNORDriver *devp = (SNORDriver *)instance;
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flash_error_t err;
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osalDbgCheck(instance != NULL);
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osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
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"invalid state");
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if (devp->state == FLASH_ERASE) {
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return FLASH_BUSY_ERASING;
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}
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/* Bus acquired.*/
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bus_acquire(devp->config->busp, devp->config->buscfg);
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/* FLASH_ERASE state while the operation is performed.*/
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devp->state = FLASH_ERASE;
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/* Actual erase implementation.*/
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err = snor_device_start_erase_all(devp);
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/* Ready state again.*/
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devp->state = FLASH_READY;
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/* Bus released.*/
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bus_release(devp->config->busp);
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return err;
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}
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static flash_error_t snor_start_erase_sector(void *instance,
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flash_sector_t sector) {
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SNORDriver *devp = (SNORDriver *)instance;
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flash_error_t err;
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osalDbgCheck(instance != NULL);
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osalDbgCheck(sector < snor_descriptor.sectors_count);
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osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
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"invalid state");
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if (devp->state == FLASH_ERASE) {
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return FLASH_BUSY_ERASING;
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}
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/* Bus acquired.*/
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bus_acquire(devp->config->busp, devp->config->buscfg);
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/* FLASH_ERASE state while the operation is performed.*/
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devp->state = FLASH_ERASE;
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/* Actual erase implementation.*/
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err = snor_device_start_erase_sector(devp, sector);
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/* Bus released.*/
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bus_release(devp->config->busp);
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return err;
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}
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static flash_error_t snor_verify_erase(void *instance,
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flash_sector_t sector) {
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SNORDriver *devp = (SNORDriver *)instance;
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flash_error_t err;
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osalDbgCheck(instance != NULL);
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osalDbgCheck(sector < snor_descriptor.sectors_count);
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osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
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"invalid state");
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if (devp->state == FLASH_ERASE) {
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return FLASH_BUSY_ERASING;
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}
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/* Bus acquired.*/
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bus_acquire(devp->config->busp, devp->config->buscfg);
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/* FLASH_READY state while the operation is performed.*/
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devp->state = FLASH_READ;
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/* Actual verify erase implementation.*/
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err = snor_device_verify_erase(devp, sector);
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/* Ready state again.*/
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devp->state = FLASH_READY;
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/* Bus released.*/
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bus_release(devp->config->busp);
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return err;
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}
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static flash_error_t snor_query_erase(void *instance, uint32_t *msec) {
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SNORDriver *devp = (SNORDriver *)instance;
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flash_error_t err;
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osalDbgCheck(instance != NULL);
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osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
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"invalid state");
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/* If there is an erase in progress then the device must be checked.*/
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if (devp->state == FLASH_ERASE) {
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/* Bus acquired.*/
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bus_acquire(devp->config->busp, devp->config->buscfg);
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/* Actual query erase implementation.*/
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err = snor_device_query_erase(devp, msec);
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/* The device is ready to accept commands.*/
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if (err == FLASH_NO_ERROR) {
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devp->state = FLASH_READY;
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}
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/* Bus released.*/
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bus_release(devp->config->busp);
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}
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else {
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err = FLASH_NO_ERROR;
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}
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return err;
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}
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static flash_error_t snor_read_sfdp(void *instance, flash_offset_t offset,
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size_t n, uint8_t *rp) {
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SNORDriver *devp = (SNORDriver *)instance;
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flash_error_t err;
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osalDbgCheck((instance != NULL) && (rp != NULL) && (n > 0U));
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osalDbgAssert((devp->state == FLASH_READY) || (devp->state == FLASH_ERASE),
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"invalid state");
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if (devp->state == FLASH_ERASE) {
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return FLASH_BUSY_ERASING;
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}
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/* Bus acquired.*/
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bus_acquire(devp->config->busp, devp->config->buscfg);
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/* Actual read SFDP implementation.*/
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err = snor_device_read_sfdp(devp, offset, n, rp);
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/* The device is ready to accept commands.*/
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if (err == FLASH_NO_ERROR) {
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devp->state = FLASH_READY;
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}
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/* Bus released.*/
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bus_release(devp->config->busp);
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return err;
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}
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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#if ((SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI) && \
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(SNOR_SHARED_BUS == TRUE)) || defined(__DOXYGEN__)
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/**
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* @brief Bus acquisition and lock.
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*
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* @param[in] busp pointer to the bus driver
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* @param[in] config bus configuration
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*
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* @notapi
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*/
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void bus_acquire(BUSDriver *busp, const BUSConfig *config) {
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(void)config;
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wspiAcquireBus(busp);
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if (busp->config != config) {
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wspiStart(busp, config);
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}
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}
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/**
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* @brief Bus release.
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*
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* @param[in] busp pointer to the bus driver
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*
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* @notapi
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*/
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void bus_release(BUSDriver *busp) {
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wspiReleaseBus(busp);
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}
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#endif
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#if (SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_SPI) && \
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(SNOR_SHARED_BUS == TRUE)
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void bus_acquire(BUSDriver *busp, const BUSConfig *config) {
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spiAcquireBus(busp);
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if (busp->config != config) {
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spiStart(busp, config);
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}
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}
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void bus_release(BUSDriver *busp) {
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spiReleaseBus(busp);
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}
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#endif
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/**
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* @brief Stops the underlying bus driver.
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*
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* @param[in] busp pointer to the bus driver
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*
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* @notapi
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*/
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void bus_stop(BUSDriver *busp) {
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#if SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI
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wspiStop(busp);
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#else
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spiStop(busp);
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#endif
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}
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/**
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* @brief Sends a naked command.
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*
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* @param[in] busp pointer to the bus driver
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* @param[in] cmd instruction code
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*
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* @notapi
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*/
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void bus_cmd(BUSDriver *busp, uint32_t cmd) {
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#if SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI
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wspi_command_t mode;
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mode.cmd = cmd;
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mode.cfg = SNOR_WSPI_CFG_CMD;
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mode.addr = 0U;
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mode.alt = 0U;
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mode.dummy = 0U;
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wspiCommand(busp, &mode);
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#else
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uint8_t buf[1];
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spiSelect(busp);
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buf[0] = cmd;
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spiSend(busp, 1, buf);
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spiUnselect(busp);
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#endif
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}
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/**
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* @brief Sends a command followed by a data transmit phase.
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*
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* @param[in] busp pointer to the bus driver
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* @param[in] cmd instruction code
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* @param[in] n number of bytes to receive
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* @param[in] p data buffer
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*
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* @notapi
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*/
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void bus_cmd_send(BUSDriver *busp, uint32_t cmd, size_t n, const uint8_t *p) {
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#if SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI
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wspi_command_t mode;
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mode.cmd = cmd;
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mode.cfg = SNOR_WSPI_CFG_CMD_DATA;
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mode.addr = 0U;
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mode.alt = 0U;
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mode.dummy = 0U;
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wspiSend(busp, &mode, n, p);
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#else
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uint8_t buf[1];
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spiSelect(busp);
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buf[0] = cmd;
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spiSend(busp, 1, buf);
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spiSend(busp, n, p);
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spiUnselect(busp);
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#endif
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}
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/**
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* @brief Sends a command followed by a data receive phase.
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*
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* @param[in] busp pointer to the bus driver
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* @param[in] cmd instruction code
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* @param[in] n number of bytes to receive
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* @param[out] p data buffer
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*
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* @notapi
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*/
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void bus_cmd_receive(BUSDriver *busp,
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uint32_t cmd,
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size_t n,
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uint8_t *p) {
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#if SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI
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wspi_command_t mode;
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mode.cmd = cmd;
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mode.cfg = SNOR_WSPI_CFG_CMD_DATA;
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mode.addr = 0U;
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mode.alt = 0U;
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mode.dummy = 0U;
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wspiReceive(busp, &mode, n, p);
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#else
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uint8_t buf[1];
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spiSelect(busp);
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buf[0] = cmd;
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spiSend(busp, 1, buf);
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spiReceive(busp, n, p);
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spiUnselect(busp);
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#endif
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}
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/**
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* @brief Sends a command followed by a flash address.
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*
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* @param[in] busp pointer to the bus driver
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* @param[in] cmd instruction code
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* @param[in] offset flash offset
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*
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* @notapi
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*/
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void bus_cmd_addr(BUSDriver *busp, uint32_t cmd, flash_offset_t offset) {
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#if SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI
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wspi_command_t mode;
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mode.cmd = cmd;
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mode.cfg = SNOR_WSPI_CFG_CMD_ADDR;
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mode.addr = offset;
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mode.alt = 0U;
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mode.dummy = 0U;
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wspiCommand(busp, &mode);
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#else
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uint8_t buf[4];
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spiSelect(busp);
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buf[0] = cmd;
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buf[1] = (uint8_t)(offset >> 16);
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buf[2] = (uint8_t)(offset >> 8);
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buf[3] = (uint8_t)(offset >> 0);
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spiSend(busp, 4, buf);
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spiUnselect(busp);
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#endif
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}
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/**
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* @brief Sends a command followed by a flash address and a data transmit
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* phase.
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*
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* @param[in] busp pointer to the bus driver
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* @param[in] cmd instruction code
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* @param[in] offset flash offset
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* @param[in] n number of bytes to receive
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* @param[in] p data buffer
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*
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* @notapi
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*/
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void bus_cmd_addr_send(BUSDriver *busp,
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uint32_t cmd,
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flash_offset_t offset,
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size_t n,
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const uint8_t *p) {
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#if SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI
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wspi_command_t mode;
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mode.cmd = cmd;
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mode.cfg = SNOR_WSPI_CFG_CMD_ADDR_DATA;
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mode.addr = offset;
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mode.alt = 0U;
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mode.dummy = 0U;
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wspiSend(busp, &mode, n, p);
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#else
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uint8_t buf[4];
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spiSelect(busp);
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buf[0] = cmd;
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buf[1] = (uint8_t)(offset >> 16);
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buf[2] = (uint8_t)(offset >> 8);
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buf[3] = (uint8_t)(offset >> 0);
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spiSend(busp, 4, buf);
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spiSend(busp, n, p);
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spiUnselect(busp);
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#endif
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}
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/**
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* @brief Sends a command followed by a flash address and a data receive
|
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* phase.
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*
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* @param[in] busp pointer to the bus driver
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* @param[in] cmd instruction code
|
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* @param[in] offset flash offset
|
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* @param[in] n number of bytes to receive
|
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* @param[out] p data buffer
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*
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* @notapi
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*/
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void bus_cmd_addr_receive(BUSDriver *busp,
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uint32_t cmd,
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flash_offset_t offset,
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size_t n,
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|
uint8_t *p) {
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#if SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI
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wspi_command_t mode;
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mode.cmd = cmd;
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mode.cfg = SNOR_WSPI_CFG_CMD_ADDR_DATA;
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mode.addr = offset;
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mode.alt = 0U;
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mode.dummy = 0U;
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wspiReceive(busp, &mode, n, p);
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#else
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uint8_t buf[4];
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spiSelect(busp);
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buf[0] = cmd;
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buf[1] = (uint8_t)(offset >> 16);
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buf[2] = (uint8_t)(offset >> 8);
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buf[3] = (uint8_t)(offset >> 0);
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spiSend(busp, 4, buf);
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spiReceive(busp, n, p);
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spiUnselect(busp);
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#endif
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}
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#if (SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI) || defined(__DOXYGEN__)
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/**
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|
* @brief Sends a command followed by dummy cycles and a
|
|
* data receive phase.
|
|
*
|
|
* @param[in] busp pointer to the bus driver
|
|
* @param[in] cmd instruction code
|
|
* @param[in] dummy number of dummy cycles
|
|
* @param[in] n number of bytes to receive
|
|
* @param[out] p data buffer
|
|
*
|
|
* @notapi
|
|
*/
|
|
void bus_cmd_dummy_receive(BUSDriver *busp,
|
|
uint32_t cmd,
|
|
uint32_t dummy,
|
|
size_t n,
|
|
uint8_t *p) {
|
|
wspi_command_t mode;
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|
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mode.cmd = cmd;
|
|
mode.cfg = SNOR_WSPI_CFG_CMD_DATA;
|
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mode.addr = 0U;
|
|
mode.alt = 0U;
|
|
mode.dummy = dummy;
|
|
wspiReceive(busp, &mode, n, p);
|
|
}
|
|
|
|
/**
|
|
* @brief Sends a command followed by a flash address, dummy cycles and a
|
|
* data receive phase.
|
|
*
|
|
* @param[in] busp pointer to the bus driver
|
|
* @param[in] cmd instruction code
|
|
* @param[in] offset flash offset
|
|
* @param[in] dummy number of dummy cycles
|
|
* @param[in] n number of bytes to receive
|
|
* @param[out] p data buffer
|
|
*
|
|
* @notapi
|
|
*/
|
|
void bus_cmd_addr_dummy_receive(BUSDriver *busp,
|
|
uint32_t cmd,
|
|
flash_offset_t offset,
|
|
uint32_t dummy,
|
|
size_t n,
|
|
uint8_t *p) {
|
|
wspi_command_t mode;
|
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|
|
mode.cmd = cmd;
|
|
mode.cfg = SNOR_WSPI_CFG_CMD_ADDR_DATA;
|
|
mode.addr = offset;
|
|
mode.alt = 0U;
|
|
mode.dummy = dummy;
|
|
wspiReceive(busp, &mode, n, p);
|
|
}
|
|
#endif /* SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI */
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|
|
/**
|
|
* @brief Initializes an instance.
|
|
*
|
|
* @param[out] devp pointer to the @p SNORDriver object
|
|
*
|
|
* @init
|
|
*/
|
|
void snorObjectInit(SNORDriver *devp) {
|
|
|
|
osalDbgCheck(devp != NULL);
|
|
|
|
devp->vmt = &snor_vmt;
|
|
devp->state = FLASH_STOP;
|
|
devp->config = NULL;
|
|
}
|
|
|
|
/**
|
|
* @brief Configures and activates SNOR driver.
|
|
*
|
|
* @param[in] devp pointer to the @p SNORDriver object
|
|
* @param[in] config pointer to the configuration
|
|
*
|
|
* @api
|
|
*/
|
|
void snorStart(SNORDriver *devp, const SNORConfig *config) {
|
|
|
|
osalDbgCheck((devp != NULL) && (config != NULL));
|
|
osalDbgAssert(devp->state != FLASH_UNINIT, "invalid state");
|
|
|
|
devp->config = config;
|
|
|
|
if (devp->state == FLASH_STOP) {
|
|
|
|
/* Bus acquisition.*/
|
|
bus_acquire(devp->config->busp, devp->config->buscfg);
|
|
|
|
/* Device identification and initialization.*/
|
|
snor_device_init(devp);
|
|
|
|
/* Driver in ready state.*/
|
|
devp->state = FLASH_READY;
|
|
|
|
/* Bus release.*/
|
|
bus_release(devp->config->busp);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Deactivates the SNOR driver.
|
|
*
|
|
* @param[in] devp pointer to the @p SNORDriver object
|
|
*
|
|
* @api
|
|
*/
|
|
void snorStop(SNORDriver *devp) {
|
|
|
|
osalDbgCheck(devp != NULL);
|
|
osalDbgAssert(devp->state != FLASH_UNINIT, "invalid state");
|
|
|
|
if (devp->state != FLASH_STOP) {
|
|
|
|
/* Bus acquisition.*/
|
|
bus_acquire(devp->config->busp, devp->config->buscfg);
|
|
|
|
/* Stopping bus device.*/
|
|
bus_stop(devp->config->busp);
|
|
|
|
/* Driver stopped.*/
|
|
devp->state = FLASH_STOP;
|
|
|
|
/* Bus release.*/
|
|
bus_release(devp->config->busp);
|
|
|
|
/* Deleting current configuration.*/
|
|
devp->config = NULL;
|
|
}
|
|
}
|
|
|
|
#if (SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI) || defined(__DOXYGEN__)
|
|
#if (WSPI_SUPPORTS_MEMMAP == TRUE) || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief Enters the memory Mapping mode.
|
|
* @details The memory mapping mode is only available when the WSPI mode
|
|
* is selected and the underlying WSPI controller supports the
|
|
* feature.
|
|
*
|
|
* @param[in] devp pointer to the @p SNORDriver object
|
|
* @param[out] addrp pointer to the memory start address of the mapped
|
|
* flash or @p NULL
|
|
*
|
|
* @api
|
|
*/
|
|
void snorMemoryMap(SNORDriver *devp, uint8_t **addrp) {
|
|
|
|
/* Bus acquisition.*/
|
|
bus_acquire(devp->config->busp, devp->config->buscfg);
|
|
|
|
#if SNOR_DEVICE_SUPPORTS_XIP == TRUE
|
|
/* Activating XIP mode in the device.*/
|
|
snor_activate_xip(devp);
|
|
#endif
|
|
|
|
/* Starting WSPI memory mapped mode.*/
|
|
wspiMapFlash(devp->config->busp, &snor_memmap_read, addrp);
|
|
|
|
/* Bus release.*/
|
|
bus_release(devp->config->busp);
|
|
}
|
|
|
|
/**
|
|
* @brief Leaves the memory Mapping mode.
|
|
*
|
|
* @param[in] devp pointer to the @p SNORDriver object
|
|
*
|
|
* @api
|
|
*/
|
|
void snorMemoryUnmap(SNORDriver *devp) {
|
|
|
|
/* Bus acquisition.*/
|
|
bus_acquire(devp->config->busp, devp->config->buscfg);
|
|
|
|
/* Stopping WSPI memory mapped mode.*/
|
|
wspiUnmapFlash(devp->config->busp);
|
|
|
|
#if SNOR_DEVICE_SUPPORTS_XIP == TRUE
|
|
snor_reset_xip(devp);
|
|
#endif
|
|
|
|
/* Bus release.*/
|
|
bus_release(devp->config->busp);
|
|
}
|
|
#endif /* WSPI_SUPPORTS_MEMMAP == TRUE */
|
|
#endif /* SNOR_BUS_DRIVER == SNOR_BUS_DRIVER_WSPI */
|
|
|
|
/** @} */
|