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Diffstat (limited to 'firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c')
| -rw-r--r-- | firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c | 1117 |
1 files changed, 0 insertions, 1117 deletions
diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c deleted file mode 100644 index 2eee15c..0000000 --- a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/DRIVERS/FLASHC/flashc.c +++ /dev/null @@ -1,1117 +0,0 @@ -/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ - -/*This file is prepared for Doxygen automatic documentation generation.*/ -/*! \file ********************************************************************* - * - * \brief FLASHC driver for AVR32 UC3. - * - * AVR32 Flash Controller driver module. - * - * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 - * - Supported devices: All AVR32 devices with a FLASHC module can be used. - * - AppNote: - * - * \author Atmel Corporation: http://www.atmel.com \n - * Support and FAQ: http://support.atmel.no/ - * - ******************************************************************************/ - -/* Copyright (c) 2009 Atmel Corporation. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * 3. The name of Atmel may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * 4. This software may only be redistributed and used in connection with an Atmel - * AVR product. - * - * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE - * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE - * - */ - -#include <avr32/io.h> -#include <stddef.h> -#include "compiler.h" -#include "flashc.h" - - -/*! \name FLASHC Writable Bit-Field Registers - */ -//! @{ - -typedef union -{ - unsigned long fcr; - avr32_flashc_fcr_t FCR; -} u_avr32_flashc_fcr_t; - -typedef union -{ - unsigned long fcmd; - avr32_flashc_fcmd_t FCMD; -} u_avr32_flashc_fcmd_t; - -//! @} - - -/*! \name Flash Properties - */ -//! @{ - - -unsigned int flashc_get_flash_size(void) -{ -#if (defined AVR32_FLASHC_300_H_INCLUDED) - static const unsigned int FLASH_SIZE[1 << AVR32_FLASHC_PR_FSZ_SIZE] = - { - 32 << 10, - 64 << 10, - 128 << 10, - 256 << 10, - 384 << 10, - 512 << 10, - 768 << 10, - 1024 << 10 - }; - return FLASH_SIZE[(AVR32_FLASHC.pr & AVR32_FLASHC_PR_FSZ_MASK) >> AVR32_FLASHC_PR_FSZ_OFFSET]; -#else - static const unsigned int FLASH_SIZE[1 << AVR32_FLASHC_FSR_FSZ_SIZE] = - { - 32 << 10, - 64 << 10, - 128 << 10, - 256 << 10, - 384 << 10, - 512 << 10, - 768 << 10, - 1024 << 10 - }; - return FLASH_SIZE[(AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_FSZ_MASK) >> AVR32_FLASHC_FSR_FSZ_OFFSET]; -#endif -} - - -unsigned int flashc_get_page_count(void) -{ - return flashc_get_flash_size() / AVR32_FLASHC_PAGE_SIZE; -} - - -unsigned int flashc_get_page_count_per_region(void) -{ - return flashc_get_page_count() / AVR32_FLASHC_REGIONS; -} - - -unsigned int flashc_get_page_region(int page_number) -{ - return ((page_number >= 0) ? page_number : flashc_get_page_number()) / flashc_get_page_count_per_region(); -} - - -unsigned int flashc_get_region_first_page_number(unsigned int region) -{ - return region * flashc_get_page_count_per_region(); -} - - -//! @} - - -/*! \name FLASHC Control - */ -//! @{ - - -unsigned int flashc_get_wait_state(void) -{ - return (AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_FWS_MASK) >> AVR32_FLASHC_FCR_FWS_OFFSET; -} - - -void flashc_set_wait_state(unsigned int wait_state) -{ - u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; - u_avr32_flashc_fcr.FCR.fws = wait_state; - AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; -} - - -Bool flashc_is_ready_int_enabled(void) -{ - return ((AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_FRDY_MASK) != 0); -} - - -void flashc_enable_ready_int(Bool enable) -{ - u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; - u_avr32_flashc_fcr.FCR.frdy = (enable != FALSE); - AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; -} - - -Bool flashc_is_lock_error_int_enabled(void) -{ - return ((AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_LOCKE_MASK) != 0); -} - - -void flashc_enable_lock_error_int(Bool enable) -{ - u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; - u_avr32_flashc_fcr.FCR.locke = (enable != FALSE); - AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; -} - - -Bool flashc_is_prog_error_int_enabled(void) -{ - return ((AVR32_FLASHC.fcr & AVR32_FLASHC_FCR_PROGE_MASK) != 0); -} - - -void flashc_enable_prog_error_int(Bool enable) -{ - u_avr32_flashc_fcr_t u_avr32_flashc_fcr = {AVR32_FLASHC.fcr}; - u_avr32_flashc_fcr.FCR.proge = (enable != FALSE); - AVR32_FLASHC.fcr = u_avr32_flashc_fcr.fcr; -} - - -//! @} - - -/*! \name FLASHC Status - */ -//! @{ - - -Bool flashc_is_ready(void) -{ - return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_FRDY_MASK) != 0); -} - - -void flashc_default_wait_until_ready(void) -{ - while (!flashc_is_ready()); -} - - -void (*volatile flashc_wait_until_ready)(void) = flashc_default_wait_until_ready; - - -/*! \brief Gets the error status of the FLASHC. - * - * \return The error status of the FLASHC built up from - * \c AVR32_FLASHC_FSR_LOCKE_MASK and \c AVR32_FLASHC_FSR_PROGE_MASK. - * - * \warning This hardware error status is cleared by all functions reading the - * Flash Status Register (FSR). This function is therefore not part of - * the driver's API which instead presents \ref flashc_is_lock_error - * and \ref flashc_is_programming_error. - */ -static unsigned int flashc_get_error_status(void) -{ - return AVR32_FLASHC.fsr & (AVR32_FLASHC_FSR_LOCKE_MASK | - AVR32_FLASHC_FSR_PROGE_MASK); -} - - -//! Sticky error status of the FLASHC. -//! This variable is updated by functions that issue FLASHC commands. It -//! contains the cumulated FLASHC error status of all the FLASHC commands issued -//! by a function. -static unsigned int flashc_error_status = 0; - - -Bool flashc_is_lock_error(void) -{ - return ((flashc_error_status & AVR32_FLASHC_FSR_LOCKE_MASK) != 0); -} - - -Bool flashc_is_programming_error(void) -{ - return ((flashc_error_status & AVR32_FLASHC_FSR_PROGE_MASK) != 0); -} - - -//! @} - - -/*! \name FLASHC Command Control - */ -//! @{ - - -unsigned int flashc_get_command(void) -{ - return (AVR32_FLASHC.fcmd & AVR32_FLASHC_FCMD_CMD_MASK) >> AVR32_FLASHC_FCMD_CMD_OFFSET; -} - - -unsigned int flashc_get_page_number(void) -{ - return (AVR32_FLASHC.fcmd & AVR32_FLASHC_FCMD_PAGEN_MASK) >> AVR32_FLASHC_FCMD_PAGEN_OFFSET; -} - - -void flashc_issue_command(unsigned int command, int page_number) -{ - u_avr32_flashc_fcmd_t u_avr32_flashc_fcmd; - flashc_wait_until_ready(); - u_avr32_flashc_fcmd.fcmd = AVR32_FLASHC.fcmd; - u_avr32_flashc_fcmd.FCMD.cmd = command; - if (page_number >= 0) u_avr32_flashc_fcmd.FCMD.pagen = page_number; - u_avr32_flashc_fcmd.FCMD.key = AVR32_FLASHC_FCMD_KEY_KEY; - AVR32_FLASHC.fcmd = u_avr32_flashc_fcmd.fcmd; - flashc_error_status = flashc_get_error_status(); - flashc_wait_until_ready(); -} - - -//! @} - - -/*! \name FLASHC Global Commands - */ -//! @{ - - -void flashc_no_operation(void) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_NOP, -1); -} - - -void flashc_erase_all(void) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EA, -1); -} - - -//! @} - - -/*! \name FLASHC Protection Mechanisms - */ -//! @{ - - -Bool flashc_is_security_bit_active(void) -{ - return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_SECURITY_MASK) != 0); -} - - -void flashc_activate_security_bit(void) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_SSB, -1); -} - - -unsigned int flashc_get_bootloader_protected_size(void) -{ - unsigned int bootprot = (1 << AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE) - 1 - - flashc_read_gp_fuse_bitfield(AVR32_FLASHC_FGPFRLO_BOOTPROT_OFFSET, - AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE); - return (bootprot) ? AVR32_FLASHC_PAGE_SIZE << bootprot : 0; -} - - -unsigned int flashc_set_bootloader_protected_size(unsigned int bootprot_size) -{ - flashc_set_gp_fuse_bitfield(AVR32_FLASHC_FGPFRLO_BOOTPROT_OFFSET, - AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE, - (1 << AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE) - 1 - - ((bootprot_size) ? - 32 - clz((((min(max(bootprot_size, AVR32_FLASHC_PAGE_SIZE << 1), - AVR32_FLASHC_PAGE_SIZE << - ((1 << AVR32_FLASHC_FGPFRLO_BOOTPROT_SIZE) - 1)) + - AVR32_FLASHC_PAGE_SIZE - 1) / - AVR32_FLASHC_PAGE_SIZE) << 1) - 1) - 1 : - 0)); - return flashc_get_bootloader_protected_size(); -} - - -Bool flashc_is_external_privileged_fetch_locked(void) -{ - return (!flashc_read_gp_fuse_bit(AVR32_FLASHC_FGPFRLO_EPFL_OFFSET)); -} - - -void flashc_lock_external_privileged_fetch(Bool lock) -{ - flashc_set_gp_fuse_bit(AVR32_FLASHC_FGPFRLO_EPFL_OFFSET, !lock); -} - - -Bool flashc_is_page_region_locked(int page_number) -{ - return flashc_is_region_locked(flashc_get_page_region(page_number)); -} - - -Bool flashc_is_region_locked(unsigned int region) -{ - return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_LOCK0_MASK << (region & (AVR32_FLASHC_REGIONS - 1))) != 0); -} - - -void flashc_lock_page_region(int page_number, Bool lock) -{ - flashc_issue_command((lock) ? AVR32_FLASHC_FCMD_CMD_LP : AVR32_FLASHC_FCMD_CMD_UP, page_number); -} - - -void flashc_lock_region(unsigned int region, Bool lock) -{ - flashc_lock_page_region(flashc_get_region_first_page_number(region), lock); -} - - -void flashc_lock_all_regions(Bool lock) -{ - unsigned int error_status = 0; - unsigned int region = AVR32_FLASHC_REGIONS; - while (region) - { - flashc_lock_region(--region, lock); - error_status |= flashc_error_status; - } - flashc_error_status = error_status; -} - - -//! @} - - -/*! \name Access to General-Purpose Fuses - */ -//! @{ - - -Bool flashc_read_gp_fuse_bit(unsigned int gp_fuse_bit) -{ - return ((flashc_read_all_gp_fuses() & 1ULL << (gp_fuse_bit & 0x3F)) != 0); -} - - -U64 flashc_read_gp_fuse_bitfield(unsigned int pos, unsigned int width) -{ - return flashc_read_all_gp_fuses() >> (pos & 0x3F) & ((1ULL << min(width, 64)) - 1); -} - - -U8 flashc_read_gp_fuse_byte(unsigned int gp_fuse_byte) -{ - return flashc_read_all_gp_fuses() >> ((gp_fuse_byte & 0x07) << 3); -} - - -U64 flashc_read_all_gp_fuses(void) -{ - return AVR32_FLASHC.fgpfrlo | (U64)AVR32_FLASHC.fgpfrhi << 32; -} - - -Bool flashc_erase_gp_fuse_bit(unsigned int gp_fuse_bit, Bool check) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EGPB, gp_fuse_bit & 0x3F); - return (check) ? flashc_read_gp_fuse_bit(gp_fuse_bit) : TRUE; -} - - -Bool flashc_erase_gp_fuse_bitfield(unsigned int pos, unsigned int width, Bool check) -{ - unsigned int error_status = 0; - unsigned int gp_fuse_bit; - pos &= 0x3F; - width = min(width, 64); - for (gp_fuse_bit = pos; gp_fuse_bit < pos + width; gp_fuse_bit++) - { - flashc_erase_gp_fuse_bit(gp_fuse_bit, FALSE); - error_status |= flashc_error_status; - } - flashc_error_status = error_status; - return (check) ? (flashc_read_gp_fuse_bitfield(pos, width) == (1ULL << width) - 1) : TRUE; -} - - -Bool flashc_erase_gp_fuse_byte(unsigned int gp_fuse_byte, Bool check) -{ - unsigned int error_status; - unsigned int current_gp_fuse_byte; - U64 value = flashc_read_all_gp_fuses(); - flashc_erase_all_gp_fuses(FALSE); - error_status = flashc_error_status; - for (current_gp_fuse_byte = 0; current_gp_fuse_byte < 8; current_gp_fuse_byte++, value >>= 8) - { - if (current_gp_fuse_byte != gp_fuse_byte) - { - flashc_write_gp_fuse_byte(current_gp_fuse_byte, value); - error_status |= flashc_error_status; - } - } - flashc_error_status = error_status; - return (check) ? (flashc_read_gp_fuse_byte(gp_fuse_byte) == 0xFF) : TRUE; -} - - -Bool flashc_erase_all_gp_fuses(Bool check) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EAGPF, -1); - return (check) ? (flashc_read_all_gp_fuses() == 0xFFFFFFFFFFFFFFFFULL) : TRUE; -} - - -void flashc_write_gp_fuse_bit(unsigned int gp_fuse_bit, Bool value) -{ - if (!value) - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WGPB, gp_fuse_bit & 0x3F); -} - - -void flashc_write_gp_fuse_bitfield(unsigned int pos, unsigned int width, U64 value) -{ - unsigned int error_status = 0; - unsigned int gp_fuse_bit; - pos &= 0x3F; - width = min(width, 64); - for (gp_fuse_bit = pos; gp_fuse_bit < pos + width; gp_fuse_bit++, value >>= 1) - { - flashc_write_gp_fuse_bit(gp_fuse_bit, value & 0x01); - error_status |= flashc_error_status; - } - flashc_error_status = error_status; -} - - -void flashc_write_gp_fuse_byte(unsigned int gp_fuse_byte, U8 value) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_PGPFB, (gp_fuse_byte & 0x07) | value << 3); -} - - -void flashc_write_all_gp_fuses(U64 value) -{ - unsigned int error_status = 0; - unsigned int gp_fuse_byte; - for (gp_fuse_byte = 0; gp_fuse_byte < 8; gp_fuse_byte++, value >>= 8) - { - flashc_write_gp_fuse_byte(gp_fuse_byte, value); - error_status |= flashc_error_status; - } - flashc_error_status = error_status; -} - - -void flashc_set_gp_fuse_bit(unsigned int gp_fuse_bit, Bool value) -{ - if (value) - flashc_erase_gp_fuse_bit(gp_fuse_bit, FALSE); - else - flashc_write_gp_fuse_bit(gp_fuse_bit, FALSE); -} - - -void flashc_set_gp_fuse_bitfield(unsigned int pos, unsigned int width, U64 value) -{ - unsigned int error_status = 0; - unsigned int gp_fuse_bit; - pos &= 0x3F; - width = min(width, 64); - for (gp_fuse_bit = pos; gp_fuse_bit < pos + width; gp_fuse_bit++, value >>= 1) - { - flashc_set_gp_fuse_bit(gp_fuse_bit, value & 0x01); - error_status |= flashc_error_status; - } - flashc_error_status = error_status; -} - - -void flashc_set_gp_fuse_byte(unsigned int gp_fuse_byte, U8 value) -{ - unsigned int error_status; - switch (value) - { - case 0xFF: - flashc_erase_gp_fuse_byte(gp_fuse_byte, FALSE); - break; - case 0x00: - flashc_write_gp_fuse_byte(gp_fuse_byte, 0x00); - break; - default: - flashc_erase_gp_fuse_byte(gp_fuse_byte, FALSE); - error_status = flashc_error_status; - flashc_write_gp_fuse_byte(gp_fuse_byte, value); - flashc_error_status |= error_status; - } -} - - -void flashc_set_all_gp_fuses(U64 value) -{ - unsigned int error_status; - switch (value) - { - case 0xFFFFFFFFFFFFFFFFULL: - flashc_erase_all_gp_fuses(FALSE); - break; - case 0x0000000000000000ULL: - flashc_write_all_gp_fuses(0x0000000000000000ULL); - break; - default: - flashc_erase_all_gp_fuses(FALSE); - error_status = flashc_error_status; - flashc_write_all_gp_fuses(value); - flashc_error_status |= error_status; - } -} - - -//! @} - - -/*! \name Access to Flash Pages - */ -//! @{ - - -void flashc_clear_page_buffer(void) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_CPB, -1); -} - - -Bool flashc_is_page_erased(void) -{ - return ((AVR32_FLASHC.fsr & AVR32_FLASHC_FSR_QPRR_MASK) != 0); -} - - -Bool flashc_quick_page_read(int page_number) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_QPR, page_number); - return flashc_is_page_erased(); -} - - -Bool flashc_erase_page(int page_number, Bool check) -{ - Bool page_erased = TRUE; - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EP, page_number); - if (check) - { - unsigned int error_status = flashc_error_status; - page_erased = flashc_quick_page_read(-1); - flashc_error_status |= error_status; - } - return page_erased; -} - - -Bool flashc_erase_all_pages(Bool check) -{ - Bool all_pages_erased = TRUE; - unsigned int error_status = 0; - unsigned int page_number = flashc_get_page_count(); - while (page_number) - { - all_pages_erased &= flashc_erase_page(--page_number, check); - error_status |= flashc_error_status; - } - flashc_error_status = error_status; - return all_pages_erased; -} - - -void flashc_write_page(int page_number) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WP, page_number); -} - - -Bool flashc_quick_user_page_read(void) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_QPRUP, -1); - return flashc_is_page_erased(); -} - - -Bool flashc_erase_user_page(Bool check) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_EUP, -1); - return (check) ? flashc_quick_user_page_read() : TRUE; -} - - -void flashc_write_user_page(void) -{ - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_WUP, -1); -} - - -volatile void *flashc_memset8(volatile void *dst, U8 src, size_t nbytes, Bool erase) -{ - return flashc_memset16(dst, src | (U16)src << 8, nbytes, erase); -} - - -volatile void *flashc_memset16(volatile void *dst, U16 src, size_t nbytes, Bool erase) -{ - return flashc_memset32(dst, src | (U32)src << 16, nbytes, erase); -} - - -volatile void *flashc_memset32(volatile void *dst, U32 src, size_t nbytes, Bool erase) -{ - return flashc_memset64(dst, src | (U64)src << 32, nbytes, erase); -} - - -volatile void *flashc_memset64(volatile void *dst, U64 src, size_t nbytes, Bool erase) -{ - // Use aggregated pointers to have several alignments available for a same address. - UnionCVPtr flash_array_end; - UnionVPtr dest; - Union64 source = {0}; - StructCVPtr dest_end; - UnionCVPtr flash_page_source_end; - Bool incomplete_flash_page_end; - Union64 flash_dword; - UnionVPtr tmp; - unsigned int error_status = 0; - unsigned int i; - - // Reformat arguments. - flash_array_end.u8ptr = AVR32_FLASH + flashc_get_flash_size(); - dest.u8ptr = dst; - for (i = (Get_align((U32)dest.u8ptr, sizeof(U64)) - 1) & (sizeof(U64) - 1); - src; i = (i - 1) & (sizeof(U64) - 1)) - { - source.u8[i] = src; - src >>= 8; - } - dest_end.u8ptr = dest.u8ptr + nbytes; - - // If destination is outside flash, go to next flash page if any. - if (dest.u8ptr < AVR32_FLASH) - { - dest.u8ptr = AVR32_FLASH; - } - else if (flash_array_end.u8ptr <= dest.u8ptr && dest.u8ptr < AVR32_FLASHC_USER_PAGE) - { - dest.u8ptr = AVR32_FLASHC_USER_PAGE; - } - - // If end of destination is outside flash, move it to the end of the previous flash page if any. - if (dest_end.u8ptr > AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE) - { - dest_end.u8ptr = AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE; - } - else if (AVR32_FLASHC_USER_PAGE >= dest_end.u8ptr && dest_end.u8ptr > flash_array_end.u8ptr) - { - dest_end.u8ptr = flash_array_end.u8ptr; - } - - // Align each end of destination pointer with its natural boundary. - dest_end.u16ptr = (U16 *)Align_down((U32)dest_end.u8ptr, sizeof(U16)); - dest_end.u32ptr = (U32 *)Align_down((U32)dest_end.u16ptr, sizeof(U32)); - dest_end.u64ptr = (U64 *)Align_down((U32)dest_end.u32ptr, sizeof(U64)); - - // While end of destination is not reached... - while (dest.u8ptr < dest_end.u8ptr) - { - // Clear the page buffer in order to prepare data for a flash page write. - flashc_clear_page_buffer(); - error_status |= flashc_error_status; - - // Determine where the source data will end in the current flash page. - flash_page_source_end.u64ptr = - (U64 *)min((U32)dest_end.u64ptr, - Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) + AVR32_FLASHC_PAGE_SIZE); - - // Determine if the current destination page has an incomplete end. - incomplete_flash_page_end = (Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) >= - Align_down((U32)dest_end.u8ptr, AVR32_FLASHC_PAGE_SIZE)); - - // Use a flash double-word buffer to manage unaligned accesses. - flash_dword.u64 = source.u64; - - // If destination does not point to the beginning of the current flash page... - if (!Test_align((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE)) - { - // Fill the beginning of the page buffer with the current flash page data. - // This is required by the hardware, even if page erase is not requested, - // in order to be able to write successfully to erased parts of flash - // pages that have already been written to. - for (tmp.u8ptr = (U8 *)Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE); - tmp.u64ptr < (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); - tmp.u64ptr++) - *tmp.u64ptr = *tmp.u64ptr; - - // If destination is not 64-bit aligned... - if (!Test_align((U32)dest.u8ptr, sizeof(U64))) - { - // Fill the beginning of the flash double-word buffer with the current - // flash page data. - // This is required by the hardware, even if page erase is not - // requested, in order to be able to write successfully to erased parts - // of flash pages that have already been written to. - for (i = 0; i < Get_align((U32)dest.u8ptr, sizeof(U64)); i++) - flash_dword.u8[i] = *tmp.u8ptr++; - - // Align the destination pointer with its 64-bit boundary. - dest.u64ptr = (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); - - // If the current destination double-word is not the last one... - if (dest.u64ptr < dest_end.u64ptr) - { - // Write the flash double-word buffer to the page buffer and reinitialize it. - *dest.u64ptr++ = flash_dword.u64; - flash_dword.u64 = source.u64; - } - } - } - - // Write the source data to the page buffer with 64-bit alignment. - for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) - *dest.u64ptr++ = source.u64; - - // If the current destination page has an incomplete end... - if (incomplete_flash_page_end) - { - // This is required by the hardware, even if page erase is not requested, - // in order to be able to write successfully to erased parts of flash - // pages that have already been written to. - { - tmp.u8ptr = (volatile U8 *)dest_end.u8ptr; - - // If end of destination is not 64-bit aligned... - if (!Test_align((U32)dest_end.u8ptr, sizeof(U64))) - { - // Fill the end of the flash double-word buffer with the current flash page data. - for (i = Get_align((U32)dest_end.u8ptr, sizeof(U64)); i < sizeof(U64); i++) - flash_dword.u8[i] = *tmp.u8ptr++; - - // Write the flash double-word buffer to the page buffer. - *dest.u64ptr++ = flash_dword.u64; - } - - // Fill the end of the page buffer with the current flash page data. - for (; !Test_align((U32)tmp.u64ptr, AVR32_FLASHC_PAGE_SIZE); tmp.u64ptr++) - *tmp.u64ptr = *tmp.u64ptr; - } - } - - // If the current flash page is in the flash array... - if (dest.u8ptr <= AVR32_FLASHC_USER_PAGE) - { - // Erase the current page if requested and write it from the page buffer. - if (erase) - { - flashc_erase_page(-1, FALSE); - error_status |= flashc_error_status; - } - flashc_write_page(-1); - error_status |= flashc_error_status; - - // If the end of the flash array is reached, go to the User page. - if (dest.u8ptr >= flash_array_end.u8ptr) - dest.u8ptr = AVR32_FLASHC_USER_PAGE; - } - // If the current flash page is the User page... - else - { - // Erase the User page if requested and write it from the page buffer. - if (erase) - { - flashc_erase_user_page(FALSE); - error_status |= flashc_error_status; - } - flashc_write_user_page(); - error_status |= flashc_error_status; - } - } - - // Update the FLASHC error status. - flashc_error_status = error_status; - - // Return the initial destination pointer as the standard memset function does. - return dst; -} - - -volatile void *flashc_memcpy(volatile void *dst, const void *src, size_t nbytes, Bool erase) -{ - // Use aggregated pointers to have several alignments available for a same address. - UnionCVPtr flash_array_end; - UnionVPtr dest; - UnionCPtr source; - StructCVPtr dest_end; - UnionCVPtr flash_page_source_end; - Bool incomplete_flash_page_end; - Union64 flash_dword; - Bool flash_dword_pending = FALSE; - UnionVPtr tmp; - unsigned int error_status = 0; - unsigned int i, j; - - // Reformat arguments. - flash_array_end.u8ptr = AVR32_FLASH + flashc_get_flash_size(); - dest.u8ptr = dst; - source.u8ptr = src; - dest_end.u8ptr = dest.u8ptr + nbytes; - - // If destination is outside flash, go to next flash page if any. - if (dest.u8ptr < AVR32_FLASH) - { - source.u8ptr += AVR32_FLASH - dest.u8ptr; - dest.u8ptr = AVR32_FLASH; - } - else if (flash_array_end.u8ptr <= dest.u8ptr && dest.u8ptr < AVR32_FLASHC_USER_PAGE) - { - source.u8ptr += AVR32_FLASHC_USER_PAGE - dest.u8ptr; - dest.u8ptr = AVR32_FLASHC_USER_PAGE; - } - - // If end of destination is outside flash, move it to the end of the previous flash page if any. - if (dest_end.u8ptr > AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE) - { - dest_end.u8ptr = AVR32_FLASHC_USER_PAGE + AVR32_FLASHC_USER_PAGE_SIZE; - } - else if (AVR32_FLASHC_USER_PAGE >= dest_end.u8ptr && dest_end.u8ptr > flash_array_end.u8ptr) - { - dest_end.u8ptr = flash_array_end.u8ptr; - } - - // Align each end of destination pointer with its natural boundary. - dest_end.u16ptr = (U16 *)Align_down((U32)dest_end.u8ptr, sizeof(U16)); - dest_end.u32ptr = (U32 *)Align_down((U32)dest_end.u16ptr, sizeof(U32)); - dest_end.u64ptr = (U64 *)Align_down((U32)dest_end.u32ptr, sizeof(U64)); - - // While end of destination is not reached... - while (dest.u8ptr < dest_end.u8ptr) - { - // Clear the page buffer in order to prepare data for a flash page write. - flashc_clear_page_buffer(); - error_status |= flashc_error_status; - - // Determine where the source data will end in the current flash page. - flash_page_source_end.u64ptr = - (U64 *)min((U32)dest_end.u64ptr, - Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) + AVR32_FLASHC_PAGE_SIZE); - - // Determine if the current destination page has an incomplete end. - incomplete_flash_page_end = (Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE) >= - Align_down((U32)dest_end.u8ptr, AVR32_FLASHC_PAGE_SIZE)); - - // If destination does not point to the beginning of the current flash page... - if (!Test_align((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE)) - { - // Fill the beginning of the page buffer with the current flash page data. - // This is required by the hardware, even if page erase is not requested, - // in order to be able to write successfully to erased parts of flash - // pages that have already been written to. - for (tmp.u8ptr = (U8 *)Align_down((U32)dest.u8ptr, AVR32_FLASHC_PAGE_SIZE); - tmp.u64ptr < (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); - tmp.u64ptr++) - *tmp.u64ptr = *tmp.u64ptr; - - // If destination is not 64-bit aligned... - if (!Test_align((U32)dest.u8ptr, sizeof(U64))) - { - // Fill the beginning of the flash double-word buffer with the current - // flash page data. - // This is required by the hardware, even if page erase is not - // requested, in order to be able to write successfully to erased parts - // of flash pages that have already been written to. - for (i = 0; i < Get_align((U32)dest.u8ptr, sizeof(U64)); i++) - flash_dword.u8[i] = *tmp.u8ptr++; - - // Fill the end of the flash double-word buffer with the source data. - for (; i < sizeof(U64); i++) - flash_dword.u8[i] = *source.u8ptr++; - - // Align the destination pointer with its 64-bit boundary. - dest.u64ptr = (U64 *)Align_down((U32)dest.u8ptr, sizeof(U64)); - - // If the current destination double-word is not the last one... - if (dest.u64ptr < dest_end.u64ptr) - { - // Write the flash double-word buffer to the page buffer. - *dest.u64ptr++ = flash_dword.u64; - } - // If the current destination double-word is the last one, the flash - // double-word buffer must be kept for later. - else flash_dword_pending = TRUE; - } - } - - // Read the source data with the maximal possible alignment and write it to - // the page buffer with 64-bit alignment. - switch (Get_align((U32)source.u8ptr, sizeof(U32))) - { - case 0: - for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) - *dest.u64ptr++ = *source.u64ptr++; - break; - - case sizeof(U16): - for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) - { - for (j = 0; j < sizeof(U64) / sizeof(U16); j++) flash_dword.u16[j] = *source.u16ptr++; - *dest.u64ptr++ = flash_dword.u64; - } - break; - - default: - for (i = flash_page_source_end.u64ptr - dest.u64ptr; i; i--) - { - for (j = 0; j < sizeof(U64); j++) flash_dword.u8[j] = *source.u8ptr++; - *dest.u64ptr++ = flash_dword.u64; - } - } - - // If the current destination page has an incomplete end... - if (incomplete_flash_page_end) - { - // If the flash double-word buffer is in use, do not initialize it. - if (flash_dword_pending) i = Get_align((U32)dest_end.u8ptr, sizeof(U64)); - // If the flash double-word buffer is free... - else - { - // Fill the beginning of the flash double-word buffer with the source data. - for (i = 0; i < Get_align((U32)dest_end.u8ptr, sizeof(U64)); i++) - flash_dword.u8[i] = *source.u8ptr++; - } - - // This is required by the hardware, even if page erase is not requested, - // in order to be able to write successfully to erased parts of flash - // pages that have already been written to. - { - tmp.u8ptr = (volatile U8 *)dest_end.u8ptr; - - // If end of destination is not 64-bit aligned... - if (!Test_align((U32)dest_end.u8ptr, sizeof(U64))) - { - // Fill the end of the flash double-word buffer with the current flash page data. - for (; i < sizeof(U64); i++) - flash_dword.u8[i] = *tmp.u8ptr++; - - // Write the flash double-word buffer to the page buffer. - *dest.u64ptr++ = flash_dword.u64; - } - - // Fill the end of the page buffer with the current flash page data. - for (; !Test_align((U32)tmp.u64ptr, AVR32_FLASHC_PAGE_SIZE); tmp.u64ptr++) - *tmp.u64ptr = *tmp.u64ptr; - } - } - - // If the current flash page is in the flash array... - if (dest.u8ptr <= AVR32_FLASHC_USER_PAGE) - { - // Erase the current page if requested and write it from the page buffer. - if (erase) - { - flashc_erase_page(-1, FALSE); - error_status |= flashc_error_status; - } - flashc_write_page(-1); - error_status |= flashc_error_status; - - // If the end of the flash array is reached, go to the User page. - if (dest.u8ptr >= flash_array_end.u8ptr) - { - source.u8ptr += AVR32_FLASHC_USER_PAGE - dest.u8ptr; - dest.u8ptr = AVR32_FLASHC_USER_PAGE; - } - } - // If the current flash page is the User page... - else - { - // Erase the User page if requested and write it from the page buffer. - if (erase) - { - flashc_erase_user_page(FALSE); - error_status |= flashc_error_status; - } - flashc_write_user_page(); - error_status |= flashc_error_status; - } - } - - // Update the FLASHC error status. - flashc_error_status = error_status; - - // Return the initial destination pointer as the standard memcpy function does. - return dst; -} - - -#if UC3C -void flashc_set_flash_waitstate_and_readmode(unsigned long cpu_f_hz) -{ - //! Device-specific data - #undef AVR32_FLASHC_FWS_0_MAX_FREQ - #undef AVR32_FLASHC_FWS_1_MAX_FREQ - #undef AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ - #undef AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ - #define AVR32_FLASHC_FWS_0_MAX_FREQ 33000000 - #define AVR32_FLASHC_FWS_1_MAX_FREQ 66000000 - #define AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ 33000000 - #define AVR32_FLASHC_HSEN_FWS_1_MAX_FREQ 72000000 - // These defines are missing from or wrong in the toolchain header files uc3cxxx.h - // Put a Bugzilla - - if(cpu_f_hz > AVR32_FLASHC_HSEN_FWS_0_MAX_FREQ) // > 33MHz - { - // Set a wait-state - flashc_set_wait_state(1); - if(cpu_f_hz <= AVR32_FLASHC_FWS_1_MAX_FREQ) // <= 66MHz and >33Mhz - { - // Disable the high-speed read mode. - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1); - } - else // > 66Mhz - { - // Enable the high-speed read mode. - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSEN, -1); - } - } - else // <= 33 MHz - { - // Disable wait-state - flashc_set_wait_state(0); - - // Disable the high-speed read mode. - flashc_issue_command(AVR32_FLASHC_FCMD_CMD_HSDIS, -1); - - } -} -#endif // UC3C device-specific implementation - -//! @} |