jacob.eva
1 year ago
parent
cce8b0c18a
commit
6e8865b2ae
7 changed files with 47 additions and 542 deletions
@ -1,204 +0,0 @@ |
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/*
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2019 Ha Thach for Adafruit Industries |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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#ifdef NRF52840_XXAA |
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#include <string.h> |
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#include "flash_cache.h" |
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#include "common_func.h" |
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#include "variant.h" |
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#include "wiring_digital.h" |
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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static inline uint32_t page_addr_of (uint32_t addr) |
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{ |
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return addr & ~(FLASH_CACHE_SIZE - 1); |
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} |
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static inline uint32_t page_offset_of (uint32_t addr) |
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{ |
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return addr & (FLASH_CACHE_SIZE - 1); |
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} |
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int flash_cache_write (flash_cache_t* fc, uint32_t dst, void const * src, uint32_t len) |
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{ |
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uint8_t const * src8 = (uint8_t const *) src; |
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uint32_t remain = len; |
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// Program up to page boundary each loop
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while ( remain ) |
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{ |
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uint32_t const page_addr = page_addr_of(dst); |
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uint32_t const offset = page_offset_of(dst); |
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uint32_t wr_bytes = FLASH_CACHE_SIZE - offset; |
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wr_bytes = min32(remain, wr_bytes); |
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// Page changes, flush old and update new cache
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if ( page_addr != fc->cache_addr ) |
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{ |
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flash_cache_flush(fc); |
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fc->cache_addr = page_addr; |
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// read a whole page from flash
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fc->read(fc->cache_buf, page_addr, FLASH_CACHE_SIZE); |
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} |
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memcpy(fc->cache_buf + offset, src8, wr_bytes); |
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// adjust for next run
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src8 += wr_bytes; |
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remain -= wr_bytes; |
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dst += wr_bytes; |
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} |
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return len - remain; |
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} |
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void flash_cache_flush (flash_cache_t* fc) |
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{ |
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if ( fc->cache_addr == FLASH_CACHE_INVALID_ADDR ) return; |
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// skip erase & program if verify() exists, and memory matches
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if ( !(fc->verify && fc->verify(fc->cache_addr, fc->cache_buf, FLASH_CACHE_SIZE)) ) |
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{ |
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// indicator TODO allow to disable flash indicator
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ledOn(LED_BUILTIN); |
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fc->erase(fc->cache_addr); |
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fc->program(fc->cache_addr, fc->cache_buf, FLASH_CACHE_SIZE); |
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ledOff(LED_BUILTIN); |
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} |
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fc->cache_addr = FLASH_CACHE_INVALID_ADDR; |
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} |
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int flash_cache_read (flash_cache_t* fc, void* dst, uint32_t addr, uint32_t count) |
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{ |
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// there is no check for overflow / wraparound for dst + count, addr + count.
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// this might be a useful thing to add for at least debug builds.
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// overwrite with cache value if available
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if ( (fc->cache_addr != FLASH_CACHE_INVALID_ADDR) && // cache is not valid
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!(addr < fc->cache_addr && addr + count <= fc->cache_addr) && // starts before, ends before cache area
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!(addr >= fc->cache_addr + FLASH_CACHE_SIZE) ) // starts after end of cache area
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{ |
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// This block is entered only when the read overlaps the cache area by at least one byte.
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// If the read starts before the cache area, it's further guaranteed
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// that count is large enough to cause the read to enter
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// the cache area by at least 1 byte.
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uint32_t dst_off = 0; |
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uint32_t src_off = 0; |
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if (addr < fc->cache_addr) |
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{ |
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dst_off = fc->cache_addr - addr; |
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// Read the bytes prior to the cache address
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fc->read(dst, addr, dst_off); |
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} |
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else |
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{ |
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src_off = addr - fc->cache_addr;
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} |
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// Thus, after the above code block executes:
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// *** AT MOST ***, only one of src_off and dst_off are non-zero;
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// (Both may be zero when the read starts at the start of the cache area.)
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// dst_off corresponds to the number of bytes already read from PRIOR to the cache area.
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// src_off corresponds to the byte offset to start reading at, from WITHIN the cache area.
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// How many bytes to memcpy from flash area?
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// Remember that, AT MOST, one of src_off and dst_off are non-zero.
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// If src_off is non-zero, then dst_off is zero, representing that the
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// read starts inside the cache. In this case:
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// PARAM1 := FLASH_CACHE_SIZE - src_off == maximum possible bytes to read from cache
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// PARAM2 := count
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// Thus, taking the minimum of the two gives the number of bytes to read from cache,
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// in the range [ 1 .. FLASH_CACHE_SIZE-src_off ].
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// Else if dst_off is non-zero, then src_off is zero, representing that the
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// read started prior to the cache area. In this case:
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// PARAM1 := FLASH_CACHE_SIZE == full size of the cache
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// PARAM2 := count - dst_off == total bytes requested, minus the count of those already read
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// Because the original request is guaranteed to overlap the cache, the range for
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// PARAM2 is ensured to be [ 1 .. count-1 ].
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// Thus, taking the minimum of the two gives the number of bytes to read from cache,
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// in the range [ 1 .. FLASH_CACHE_SIZE ]
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// Else both src_off and dst_off are zero, representing that the read is starting
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// exactly aligned to the cache.
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// PARAM1 := FLASH_CACHE_SIZE
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// PARAM2 := count
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// Thus, taking the minimum of the two gives the number of bytes to read from cache,
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// in the range [ 1 .. FLASH_CACHE_SIZE ]
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//
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// Therefore, in all cases, there is assurance that cache_bytes
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// will be in the final range [1..FLASH_CACHE_SIZE].
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uint32_t cache_bytes = minof(FLASH_CACHE_SIZE-src_off, count - dst_off); |
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// Use memcpy to read cached data into the buffer
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// If src_off is non-zero, then dst_off is zero, representing that the
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// read starts inside the cache. In this case:
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// PARAM1 := dst
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// PARAM2 := fc->cache_buf + src_off
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// PARAM3 := cache_bytes
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// Thus, all works as expected when starting in the midst of the cache.
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// Else if dst_off is non-zero, then src_off is zero, representing that the
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// read started prior to the cache. In this case:
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// PARAM1 := dst + dst_off == destination offset by number of bytes already read
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// PARAM2 := fc->cache_buf
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// PARAM3 := cache_bytes
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// Thus, all works as expected when starting prior to the cache.
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// Else both src_off and dst_off are zero, representing that the read is starting
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// exactly aligned to the cache.
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// PARAM1 := dst
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// PARAM2 := fc->cache_buf
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// PARAM3 := cache_bytes
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// Thus, all works as expected when starting exactly at the cache boundary
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//
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// Therefore, in all cases, there is assurance that cache_bytes
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// will be in the final range [1..FLASH_CACHE_SIZE].
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memcpy(dst + dst_off, fc->cache_buf + src_off, cache_bytes); |
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// Read any final bytes from flash
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// As noted above, dst_off represents the count of bytes read prior to the cache
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// while cache_bytes represents the count of bytes read from the cache;
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// This code block is guaranteed to overlap the cache area by at least one byte.
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// Thus, copied will correspond to the total bytes already copied,
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// and is guaranteed to be in the range [ 1 .. count ].
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uint32_t copied = dst_off + cache_bytes; |
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//
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if ( copied < count ) |
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{ |
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fc->read(dst + copied, addr + copied, count - copied); |
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} |
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} |
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else |
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{ |
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// not using the cache, so just forward to read from flash
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fc->read(dst, addr, count); |
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} |
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return (int) count; |
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} |
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#endif |
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@ -1,58 +0,0 @@ |
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/*
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2019 Ha Thach for Adafruit Industries |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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#ifdef NRF52840_XXAA |
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#ifndef FLASH_CACHE_H_ |
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#define FLASH_CACHE_H_ |
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#include <stdint.h> |
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#include <stdbool.h> |
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#define FLASH_CACHE_SIZE 4096 // must be a erasable page size
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#define FLASH_CACHE_INVALID_ADDR 0xffffffff |
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typedef struct |
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{ |
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bool (*erase) (uint32_t addr); |
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uint32_t (*program) (uint32_t dst, void const * src, uint32_t len); |
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uint32_t (*read) (void* dst, uint32_t src, uint32_t len); |
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bool (*verify) (uint32_t addr, void const * buf, uint32_t len); |
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uint32_t cache_addr; |
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uint8_t* cache_buf; |
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} flash_cache_t; |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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int flash_cache_write (flash_cache_t* fc, uint32_t dst, void const *src, uint32_t count); |
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void flash_cache_flush (flash_cache_t* fc); |
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int flash_cache_read (flash_cache_t* fc, void* dst, uint32_t addr, uint32_t count); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* FLASH_CACHE_H_ */ |
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#endif |
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@ -1,179 +0,0 @@ |
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/*
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2019 Ha Thach for Adafruit Industries |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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#ifdef NRF52840_XXAA |
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#include "flash_nrf5x.h" |
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#include "flash_cache.h" |
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#include "nrf_sdm.h" |
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#include "nrf_soc.h" |
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#include "delay.h" |
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#include "rtos.h" |
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#ifdef NRF52840_XXAA |
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#define BOOTLOADER_ADDR 0xF4000 |
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#else |
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#define BOOTLOADER_ADDR 0x74000 |
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#endif |
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// defined in linker script
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extern uint32_t __flash_arduino_start[]; |
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//extern uint32_t __flash_arduino_end[];
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//--------------------------------------------------------------------+
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// MACRO TYPEDEF CONSTANT ENUM DECLARATION
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//--------------------------------------------------------------------+
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static SemaphoreHandle_t _sem = NULL; |
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void flash_nrf5x_event_cb (uint32_t event) |
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{ |
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// if (event != NRF_EVT_FLASH_OPERATION_SUCCESS) LOG_LV1("IFLASH", "Flash op Failed");
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if ( _sem ) xSemaphoreGive(_sem); |
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} |
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// Flash Abstraction Layer
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static bool fal_erase (uint32_t addr); |
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static uint32_t fal_program (uint32_t dst, void const * src, uint32_t len); |
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static uint32_t fal_read (void* dst, uint32_t src, uint32_t len); |
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static bool fal_verify (uint32_t addr, void const * buf, uint32_t len); |
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static uint8_t _cache_buffer[FLASH_CACHE_SIZE] __attribute__((aligned(4))); |
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static flash_cache_t _cache = |
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{ |
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.erase = fal_erase, |
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.program = fal_program, |
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.read = fal_read, |
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.verify = fal_verify, |
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.cache_addr = FLASH_CACHE_INVALID_ADDR, |
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.cache_buf = _cache_buffer |
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}; |
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//--------------------------------------------------------------------+
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// Application API
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//--------------------------------------------------------------------+
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void flash_nrf5x_flush (void) |
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{ |
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flash_cache_flush(&_cache); |
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} |
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int flash_nrf5x_write (uint32_t dst, void const * src, uint32_t len) |
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{ |
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// Softdevice region
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VERIFY(dst >= ((uint32_t) __flash_arduino_start), -1); |
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// Bootloader region
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VERIFY(dst < BOOTLOADER_ADDR, -1); |
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return flash_cache_write(&_cache, dst, src, len); |
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} |
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int flash_nrf5x_read (void* dst, uint32_t src, uint32_t len) |
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{ |
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return flash_cache_read(&_cache, dst, src, len); |
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} |
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bool flash_nrf5x_erase(uint32_t addr) |
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{ |
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return fal_erase(addr); |
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} |
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//--------------------------------------------------------------------+
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// HAL for caching
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//--------------------------------------------------------------------+
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static bool fal_erase (uint32_t addr) |
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{ |
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// Init semaphore for first call
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if ( _sem == NULL ) |
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{ |
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_sem = xSemaphoreCreateCounting(10, 0); |
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VERIFY(_sem); |
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} |
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// retry if busy
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uint32_t err; |
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while ( NRF_ERROR_BUSY == (err = sd_flash_page_erase(addr / FLASH_NRF52_PAGE_SIZE)) ) |
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{ |
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delay(1); |
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} |
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VERIFY_STATUS(err, false); |
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// wait for async event if SD is enabled
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uint8_t sd_en = 0; |
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(void) sd_softdevice_is_enabled(&sd_en); |
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||||||
if ( sd_en ) xSemaphoreTake(_sem, portMAX_DELAY); |
|
||||||
|
|
||||||
return true; |
|
||||||
} |
|
||||||
|
|
||||||
static uint32_t fal_program (uint32_t dst, void const * src, uint32_t len) |
|
||||||
{ |
|
||||||
// wait for async event if SD is enabled
|
|
||||||
uint8_t sd_en = 0; |
|
||||||
(void) sd_softdevice_is_enabled(&sd_en); |
|
||||||
|
|
||||||
uint32_t err; |
|
||||||
|
|
||||||
// Somehow S140 v6.1.1 assert an error when writing a whole page
|
|
||||||
// https://devzone.nordicsemi.com/f/nordic-q-a/40088/sd_flash_write-cause-nrf_fault_id_sd_assert
|
|
||||||
// Workaround: write half page at a time.
|
|
||||||
#if NRF52832_XXAA |
|
||||||
while ( NRF_ERROR_BUSY == (err = sd_flash_write((uint32_t*) dst, (uint32_t const *) src, len/4)) ) |
|
||||||
{ |
|
||||||
delay(1); |
|
||||||
} |
|
||||||
VERIFY_STATUS(err, 0); |
|
||||||
|
|
||||||
if ( sd_en ) xSemaphoreTake(_sem, portMAX_DELAY); |
|
||||||
#else |
|
||||||
while ( NRF_ERROR_BUSY == (err = sd_flash_write((uint32_t*) dst, (uint32_t const *) src, len/8)) ) |
|
||||||
{ |
|
||||||
delay(1); |
|
||||||
} |
|
||||||
VERIFY_STATUS(err, 0); |
|
||||||
if ( sd_en ) xSemaphoreTake(_sem, portMAX_DELAY); |
|
||||||
|
|
||||||
while ( NRF_ERROR_BUSY == (err = sd_flash_write((uint32_t*) (dst+ len/2), (uint32_t const *) (src + len/2), len/8)) ) |
|
||||||
{ |
|
||||||
delay(1); |
|
||||||
} |
|
||||||
VERIFY_STATUS(err, 0); |
|
||||||
if ( sd_en ) xSemaphoreTake(_sem, portMAX_DELAY); |
|
||||||
#endif |
|
||||||
|
|
||||||
return len; |
|
||||||
} |
|
||||||
|
|
||||||
static uint32_t fal_read (void* dst, uint32_t src, uint32_t len) |
|
||||||
{ |
|
||||||
memcpy(dst, (void*) src, len); |
|
||||||
return len; |
|
||||||
} |
|
||||||
|
|
||||||
static bool fal_verify (uint32_t addr, void const * buf, uint32_t len) |
|
||||||
{ |
|
||||||
return 0 == memcmp((void*) addr, buf, len); |
|
||||||
} |
|
||||||
#endif |
|
||||||
@ -1,89 +0,0 @@ |
|||||||
/*
|
|
||||||
* The MIT License (MIT) |
|
||||||
* |
|
||||||
* Copyright (c) 2019 Ha Thach for Adafruit Industries |
|
||||||
* |
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy |
|
||||||
* of this software and associated documentation files (the "Software"), to deal |
|
||||||
* in the Software without restriction, including without limitation the rights |
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
||||||
* copies of the Software, and to permit persons to whom the Software is |
|
||||||
* furnished to do so, subject to the following conditions: |
|
||||||
* |
|
||||||
* The above copyright notice and this permission notice shall be included in |
|
||||||
* all copies or substantial portions of the Software. |
|
||||||
* |
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
|
||||||
* THE SOFTWARE. |
|
||||||
*/ |
|
||||||
#ifdef NRF52840_XXAA |
|
||||||
#ifndef FLASH_NRF52_H_ |
|
||||||
#define FLASH_NRF52_H_ |
|
||||||
|
|
||||||
#include "common_inc.h" |
|
||||||
|
|
||||||
#define FLASH_NRF52_PAGE_SIZE 4096 |
|
||||||
|
|
||||||
#ifdef __cplusplus |
|
||||||
extern "C" { |
|
||||||
#endif |
|
||||||
|
|
||||||
void flash_nrf5x_flush (void); |
|
||||||
bool flash_nrf5x_erase(uint32_t addr); |
|
||||||
|
|
||||||
int flash_nrf5x_write (uint32_t dst, void const * src, uint32_t len); |
|
||||||
int flash_nrf5x_read (void* dst, uint32_t src, uint32_t len); |
|
||||||
|
|
||||||
//--------------------------------------------------------------------+
|
|
||||||
// Write helper
|
|
||||||
//--------------------------------------------------------------------+
|
|
||||||
static inline int flash_nrf5x_write8 (uint32_t dst, uint8_t num) |
|
||||||
{ |
|
||||||
return flash_nrf5x_write(dst, &num, sizeof(num)); |
|
||||||
} |
|
||||||
|
|
||||||
static inline int flash_nrf5x_write16 (uint32_t dst, uint8_t num) |
|
||||||
{ |
|
||||||
return flash_nrf5x_write(dst, &num, sizeof(num)); |
|
||||||
} |
|
||||||
static inline int flash_nrf5x_write32 (uint32_t dst, uint8_t num) |
|
||||||
{ |
|
||||||
return flash_nrf5x_write(dst, &num, sizeof(num)); |
|
||||||
} |
|
||||||
|
|
||||||
//--------------------------------------------------------------------+
|
|
||||||
// Read helper
|
|
||||||
//--------------------------------------------------------------------+
|
|
||||||
static inline uint8_t flash_nrf5x_read8 (uint32_t src) |
|
||||||
{ |
|
||||||
uint8_t num; |
|
||||||
flash_nrf5x_read(&num, src, sizeof(num)); |
|
||||||
return num; |
|
||||||
} |
|
||||||
|
|
||||||
static inline uint16_t flash_nrf5x_read16 (uint32_t src) |
|
||||||
{ |
|
||||||
uint16_t num; |
|
||||||
flash_nrf5x_read(&num, src, sizeof(num)); |
|
||||||
return num; |
|
||||||
} |
|
||||||
|
|
||||||
static inline uint16_t flash_nrf5x_read32 (uint32_t src) |
|
||||||
{ |
|
||||||
uint32_t num; |
|
||||||
flash_nrf5x_read(&num, src, sizeof(num)); |
|
||||||
return num; |
|
||||||
} |
|
||||||
|
|
||||||
|
|
||||||
#ifdef __cplusplus |
|
||||||
} |
|
||||||
#endif |
|
||||||
|
|
||||||
#endif /* FLASH_NRF52_H_ */ |
|
||||||
#endif |
|
||||||
Loading…
Reference in new issue