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6189d6bdc5
Flash operations can specify how long to wait before the next operation is issued. Prior to this the amount of time waited, and when, was wrong. e.g. m25p16_eraseCompletely - possibly waits ages TO START, starts, exit. m25p16_pageProgramContinue - waits DEFAULT_TIMEOUT_MILLIS to START, starts, exits. m25p16_pageProgramContinue would fail to write to the flash as the device was still busy erasing and didn't wait long enough. what happens now is: m25p16_eraseCompletely - waits using the current timeout, starts, sets timeout to be `now + BULK_ERASE_TIMEOUT_MILLIS`, exits. m25p16_pageProgramContinue - waits using the current `BULK_ERASE_TIMEOUT_MILLIS`, starts, exists, sets timeout to be `now + DEFAULT_TIMEOUT_MILLIS`. Since the timeout is stored in the flashDevice_t the solution also works for multi-die devices which use an instance of flashDevice_t for each die.
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*
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* This file is part of Cleanflight and Betaflight.
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*
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* Cleanflight and Betaflight are free software. You can redistribute
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* this software and/or modify this software under the terms of the
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* GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* Cleanflight and Betaflight are distributed in the hope that they
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software.
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*
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Author: jflyper
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*/
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#pragma once
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#include "drivers/bus.h"
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struct flashVTable_s;
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typedef enum {
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FLASHIO_NONE = 0,
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FLASHIO_SPI,
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FLASHIO_QUADSPI
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} flashDeviceIoMode_e;
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typedef struct flashDeviceIO_s {
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union {
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busDevice_t *busdev; // Device interface dependent handle (spi/i2c)
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#ifdef USE_QUADSPI
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QUADSPI_TypeDef *quadSpi;
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#endif
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} handle;
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flashDeviceIoMode_e mode;
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} flashDeviceIO_t;
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typedef struct flashDevice_s {
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const struct flashVTable_s *vTable;
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flashGeometry_t geometry;
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uint32_t currentWriteAddress;
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bool isLargeFlash;
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// Whether we've performed an action that could have made the device busy
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// for writes. This allows us to avoid polling for writable status
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// when it is definitely ready already.
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bool couldBeBusy;
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uint32_t timeoutAt;
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flashDeviceIO_t io;
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} flashDevice_t;
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typedef struct flashVTable_s {
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bool (*isReady)(flashDevice_t *fdevice);
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bool (*waitForReady)(flashDevice_t *fdevice);
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void (*eraseSector)(flashDevice_t *fdevice, uint32_t address);
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void (*eraseCompletely)(flashDevice_t *fdevice);
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void (*pageProgramBegin)(flashDevice_t *fdevice, uint32_t address);
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void (*pageProgramContinue)(flashDevice_t *fdevice, const uint8_t *data, int length);
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void (*pageProgramFinish)(flashDevice_t *fdevice);
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void (*pageProgram)(flashDevice_t *fdevice, uint32_t address, const uint8_t *data, int length);
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void (*flush)(flashDevice_t *fdevice);
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int (*readBytes)(flashDevice_t *fdevice, uint32_t address, uint8_t *buffer, int length);
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const flashGeometry_t *(*getGeometry)(flashDevice_t *fdevice);
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} flashVTable_t;
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