58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
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#ifndef HELPERS_H
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#define HELPERS_H
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#include <stdint.h>
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#include "norflash.h"
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#include "fifo.h"
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#include "baselayer.h"
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class MemoryBase {
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NorFlash flash;
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public:
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explicit MemoryBase () noexcept : flash() {}
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uint32_t Write (const uint32_t addr, const void * ptr, const uint32_t len) {
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return flash.WriteBlock(addr, reinterpret_cast<const uint8_t*>(ptr), len);
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}
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uint32_t Read (const uint32_t addr, void * ptr, const uint32_t len) {
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return flash.ReadBlock(addr, reinterpret_cast<uint8_t*> (ptr), len);
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}
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void Erase (const uint32_t blok) {
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flash.EraseSector(blok);
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}
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};
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class CdcCmd : public BaseLayer {
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static constexpr int maxlen = 0x80;
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FIFO<char, maxlen> ring;
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char line [maxlen];
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unsigned index;
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public:
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explicit CdcCmd () noexcept : BaseLayer(), ring(), index(0u) {}
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uint32_t Up(const char * data, const uint32_t len) override {
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for (unsigned n=0u; n<len; n++) ring.Write (data [n]);
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return len;
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}
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void SendString (const char * ptr, const uint32_t len) {
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unsigned ofs = 0u, res = len;
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while (res) {
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const unsigned chunk = res > 0x20u ? 0x20u : res;
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const unsigned n = Down (ptr + ofs, chunk);
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ofs += n;
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res -= n;
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}
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}
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char * GetLine (unsigned & len) {
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char c;
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while (ring.Read(c)) {
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line [index++] = c;
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if (c == '\n') {
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len = index;
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index = 0u;
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return line;
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}
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}
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len = 0u;
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return line;
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}
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};
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#endif // HELPERS_H
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