X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fcc1111%2Fao_intflash.c;fp=src%2Fcc1111%2Fao_intflash.c;h=0000000000000000000000000000000000000000;hp=154b3c252c1db4549869d4efd7b9ecd815c4375d;hb=56629222711ba3ef7853405c9b07ad614fb29b95;hpb=382b3ef62a09e580834b07faf9ed2d00e5ce1621 diff --git a/src/cc1111/ao_intflash.c b/src/cc1111/ao_intflash.c deleted file mode 100644 index 154b3c25..00000000 --- a/src/cc1111/ao_intflash.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * Copyright © 2011 Anthony Towns - * - * This program 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 2 of the License, or - * (at your option) any later version. - * - * This program 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, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -#include "ao.h" -#include "cc1111.h" - -#define ENDOFCODE (CODESIZE) -#define AO_INTFLASH_BLOCK 1024 -#define AO_INTFLASH_BLOCKS ((0x8000 - ENDOFCODE)/AO_INTFLASH_BLOCK) -#define AO_INTFLASH_SIZE (AO_INTFLASH_BLOCK * AO_INTFLASH_BLOCKS) -#define AO_INTFLASH_LOCATION (0x8000 - AO_INTFLASH_SIZE) - -/* - * 21000 * 24e6 - * FWT = ------------ - * 16e9 - * - * = 31.5 - * - * Round up and use 32 - */ - -#define FLASH_TIMING 0x20 - -#if AO_INTFLASH_BLOCKS < 2 -#error "Too few pages" -#endif - -#if AO_INFTLASH_LOCATION % 1024 != 0 -#error "Pages aren't aligned properly" -#endif - -__xdata __at(AO_INTFLASH_LOCATION) uint8_t ao_intflash[AO_INTFLASH_SIZE]; - -/* Total bytes of available storage */ -__pdata uint32_t ao_storage_total = sizeof(ao_intflash); - -/* Block size - device is erased in these units. */ -__pdata uint32_t ao_storage_block = AO_INTFLASH_BLOCK; - -/* Byte offset of config block. Will be ao_storage_block bytes long */ -__pdata uint32_t ao_storage_config = sizeof(ao_intflash) - AO_INTFLASH_BLOCK; - -/* Storage unit size - device reads and writes must be within blocks of this size. */ -__pdata uint16_t ao_storage_unit = AO_INTFLASH_BLOCK; - -__xdata static uint8_t ao_intflash_dma_done; -static uint8_t ao_intflash_dma; - -/* - * The internal flash chip is arranged in 1kB sectors; the - * chip cannot erase in units smaller than that. - * - * Writing happens in units of 2 bytes and - * can only change bits from 1 to 0. So, you can rewrite - * the same contents, or append to an existing page easily enough - */ - -/* - * Erase the specified sector - */ -uint8_t -ao_storage_erase(uint32_t pos) __reentrant -{ - uint16_t addr; - - if (pos >= ao_storage_total || pos + ao_storage_block > ao_storage_total) - return 0; - - addr = ((uint16_t)(ao_intflash + pos) >> 1); - - FADDRH = addr >> 8; - FADDRL = addr; - - __critical { - _asm - .even - orl _FCTL, #FCTL_ERASE; ; FCTL |= FCTL_ERASE - nop ; Required, see datasheet. - _endasm; - } - - return 1; -} - -/* - * Write to flash - */ - -static void -ao_intflash_write_aligned(uint16_t pos, __xdata void *d, uint16_t len) __reentrant -{ - pos = ((uint16_t) ao_intflash + pos) >> 1; - - ao_dma_set_transfer(ao_intflash_dma, - d, - &FWDATAXADDR, - len, - DMA_CFG0_WORDSIZE_8 | - DMA_CFG0_TMODE_SINGLE | - DMA_CFG0_TRIGGER_FLASH, - DMA_CFG1_SRCINC_1 | - DMA_CFG1_DESTINC_0 | - DMA_CFG1_PRIORITY_HIGH); - - FADDRH = pos >> 8; - FADDRL = pos; - - ao_dma_start(ao_intflash_dma); - - __critical { - _asm - .even - orl _FCTL, #FCTL_WRITE; ; FCTL |= FCTL_WRITE - nop - _endasm; - } - __critical while (!ao_intflash_dma_done) - ao_sleep(&ao_intflash_dma_done); -} - -static void -ao_intflash_write_byte(uint16_t pos, uint8_t byte) __reentrant -{ - static __xdata uint8_t b[2]; - - if (pos & 1) { - b[0] = 0xff; - b[1] = byte; - } else { - b[0] = byte; - b[1] = 0xff; - } - ao_intflash_write_aligned(pos, b, 2); -} - -uint8_t -ao_storage_device_write(uint32_t pos32, __xdata void *v, uint16_t len) __reentrant -{ - uint16_t pos = pos32; - __xdata uint8_t *d = v; - uint8_t oddlen; - - if (pos >= ao_storage_total || pos + len > ao_storage_total) - return 0; - if (len == 0) - return 1; - - if (pos & 1) { - ao_intflash_write_byte(pos++, *d++); - len--; - } - oddlen = len & 1; - len -= oddlen; - if (len) - ao_intflash_write_aligned(pos, d, len); - if (oddlen) - ao_intflash_write_byte(pos + len, d[len]); - - return 1; -} - -/* - * Read from flash - */ -uint8_t -ao_storage_device_read(uint32_t pos, __xdata void *d, uint16_t len) __reentrant -{ - if (pos >= ao_storage_total || pos + len > ao_storage_total) - return 0; - ao_xmemcpy(d, ao_intflash+pos, len); - return 1; -} - -void -ao_storage_flush(void) __reentrant -{ -} - -void -ao_storage_setup(void) -{ -} - -void -ao_storage_device_info(void) __reentrant -{ - printf ("Using internal flash, starting at 0x%04x\n", AO_INTFLASH_LOCATION); -} - -void -ao_storage_device_init(void) -{ - ao_intflash_dma = ao_dma_alloc(&ao_intflash_dma_done); - - FWT = FLASH_TIMING; -}