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Diffstat (limited to 'lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h')
| -rw-r--r-- | lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h b/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h deleted file mode 100644 index 77be220118..0000000000 --- a/lib/lufa/LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h +++ /dev/null @@ -1,237 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2017. - - dean [at] fourwalledcubicle [dot] com - www.lufa-lib.org -*/ - -/* - Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaims all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * \brief Board specific Dataflash driver header for the Atmel USBKEY. - * \copydetails Group_Dataflash_USBKEY - * - * \note This file should not be included directly. It is automatically included as needed by the dataflash driver - * dispatch header located in LUFA/Drivers/Board/Dataflash.h. - */ - -/** \ingroup Group_Dataflash - * \defgroup Group_Dataflash_USBKEY USBKEY - * \brief Board specific Dataflash driver header for the Atmel USBKEY. - * - * Board specific Dataflash driver header for the Atmel USBKEY board. - * - * <table> - * <tr><th>Name</th><th>Info</th><th>Select Pin</th><th>SPI Port</th></tr> - * <tr><td>DATAFLASH_CHIP1</td><td>AT45DB642D (8MB)</td><td>PORTE.0</td><td>SPI0</td></tr> - * <tr><td>DATAFLASH_CHIP2</td><td>AT45DB642D (8MB)</td><td>PORTE.1</td><td>SPI0</td></tr> - * </table> - * - * @{ - */ - -#ifndef __DATAFLASH_USBKEY_H__ -#define __DATAFLASH_USBKEY_H__ - - /* Includes: */ - #include "../../../../Common/Common.h" - #include "../../../Misc/AT45DB642D.h" - #include "../../../Peripheral/SPI.h" - - /* Preprocessor Checks: */ - #if !defined(__INCLUDE_FROM_DATAFLASH_H) - #error Do not include this file directly. Include LUFA/Drivers/Board/Dataflash.h instead. - #endif - - /* Private Interface - For use in library only: */ - #if !defined(__DOXYGEN__) - /* Macros: */ - #define DATAFLASH_CHIPCS_MASK (DATAFLASH_CHIP1 | DATAFLASH_CHIP2) - #define DATAFLASH_CHIPCS_DDR DDRE - #define DATAFLASH_CHIPCS_PORT PORTE - #endif - - /* Public Interface - May be used in end-application: */ - /* Macros: */ - /** Constant indicating the total number of dataflash ICs mounted on the selected board. */ - #define DATAFLASH_TOTALCHIPS 2 - - /** Mask for no dataflash chip selected. */ - #define DATAFLASH_NO_CHIP 0 - - /** Mask for the first dataflash chip selected. */ - #define DATAFLASH_CHIP1 (1 << 0) - - /** Mask for the second dataflash chip selected. */ - #define DATAFLASH_CHIP2 (1 << 1) - - /** Internal main memory page size for the board's dataflash ICs. */ - #define DATAFLASH_PAGE_SIZE 1024 - - /** Total number of pages inside each of the board's dataflash ICs. */ - #define DATAFLASH_PAGES 8192 - - /* Inline Functions: */ - /** Initializes the dataflash driver so that commands and data may be sent to an attached dataflash IC. - * The appropriate SPI interface will be automatically configured. - */ - static inline void Dataflash_Init(void) - { - DATAFLASH_CHIPCS_DDR |= DATAFLASH_CHIPCS_MASK; - DATAFLASH_CHIPCS_PORT |= DATAFLASH_CHIPCS_MASK; - - SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_ORDER_MSB_FIRST | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER); - } - - /** Sends a byte to the currently selected dataflash IC, and returns a byte from the dataflash. - * - * \param[in] Byte Byte of data to send to the dataflash - * - * \return Last response byte from the dataflash - */ - static inline uint8_t Dataflash_TransferByte(const uint8_t Byte) ATTR_ALWAYS_INLINE; - static inline uint8_t Dataflash_TransferByte(const uint8_t Byte) - { - return SPI_TransferByte(Byte); - } - - /** Sends a byte to the currently selected dataflash IC, and ignores the next byte from the dataflash. - * - * \param[in] Byte Byte of data to send to the dataflash - */ - static inline void Dataflash_SendByte(const uint8_t Byte) ATTR_ALWAYS_INLINE; - static inline void Dataflash_SendByte(const uint8_t Byte) - { - SPI_SendByte(Byte); - } - - /** Sends a dummy byte to the currently selected dataflash IC, and returns the next byte from the dataflash. - * - * \return Last response byte from the dataflash - */ - static inline uint8_t Dataflash_ReceiveByte(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT; - static inline uint8_t Dataflash_ReceiveByte(void) - { - return SPI_ReceiveByte(); - } - - /** Determines the currently selected dataflash chip. - * - * \return Mask of the currently selected Dataflash chip, either \ref DATAFLASH_NO_CHIP if no chip is selected - * or a DATAFLASH_CHIPn mask (where n is the chip number). - */ - static inline uint8_t Dataflash_GetSelectedChip(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT; - static inline uint8_t Dataflash_GetSelectedChip(void) - { - return (~DATAFLASH_CHIPCS_PORT & DATAFLASH_CHIPCS_MASK); - } - - /** Selects the given dataflash chip. - * - * \param[in] ChipMask Mask of the Dataflash IC to select, in the form of a \c DATAFLASH_CHIPn mask (where n is - * the chip number). - */ - static inline void Dataflash_SelectChip(const uint8_t ChipMask) ATTR_ALWAYS_INLINE; - static inline void Dataflash_SelectChip(const uint8_t ChipMask) - { - DATAFLASH_CHIPCS_PORT = ((DATAFLASH_CHIPCS_PORT | DATAFLASH_CHIPCS_MASK) & ~ChipMask); - } - - /** Deselects the current dataflash chip, so that no dataflash is selected. */ - static inline void Dataflash_DeselectChip(void) ATTR_ALWAYS_INLINE; - static inline void Dataflash_DeselectChip(void) - { - Dataflash_SelectChip(DATAFLASH_NO_CHIP); - } - - /** Selects a dataflash IC from the given page number, which should range from 0 to - * ((DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS) - 1). For boards containing only one - * dataflash IC, this will select DATAFLASH_CHIP1. If the given page number is outside - * the total number of pages contained in the boards dataflash ICs, all dataflash ICs - * are deselected. - * - * \param[in] PageAddress Address of the page to manipulate, ranging from - * 0 to ((DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS) - 1). - */ - static inline void Dataflash_SelectChipFromPage(const uint16_t PageAddress) - { - Dataflash_DeselectChip(); - - if (PageAddress >= (DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS)) - return; - - #if (DATAFLASH_TOTALCHIPS == 2) - if (PageAddress & 0x01) - Dataflash_SelectChip(DATAFLASH_CHIP2); - else - Dataflash_SelectChip(DATAFLASH_CHIP1); - #else - Dataflash_SelectChip(DATAFLASH_CHIP1); - #endif - } - - /** Toggles the select line of the currently selected dataflash IC, so that it is ready to receive - * a new command. - */ - static inline void Dataflash_ToggleSelectedChipCS(void) - { - uint8_t SelectedChipMask = Dataflash_GetSelectedChip(); - - Dataflash_DeselectChip(); - Dataflash_SelectChip(SelectedChipMask); - } - - /** Spin-loops while the currently selected dataflash is busy executing a command, such as a main - * memory page program or main memory to buffer transfer. - */ - static inline void Dataflash_WaitWhileBusy(void) - { - Dataflash_ToggleSelectedChipCS(); - Dataflash_SendByte(DF_CMD_GETSTATUS); - while (!(Dataflash_ReceiveByte() & DF_STATUS_READY)); - Dataflash_ToggleSelectedChipCS(); - } - - /** Sends a set of page and buffer address bytes to the currently selected dataflash IC, for use with - * dataflash commands which require a complete 24-bit address. - * - * \param[in] PageAddress Page address within the selected dataflash IC - * \param[in] BufferByte Address within the dataflash's buffer - */ - static inline void Dataflash_SendAddressBytes(uint16_t PageAddress, - const uint16_t BufferByte) - { - #if (DATAFLASH_TOTALCHIPS == 2) - PageAddress >>= 1; - #endif - - Dataflash_SendByte(PageAddress >> 5); - Dataflash_SendByte((PageAddress << 3) | (BufferByte >> 8)); - Dataflash_SendByte(BufferByte); - } - -#endif - -/** @} */ - |