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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,18 +1,119 @@ | ||
| #ifndef __INC_FASTSPI_APOLLO3_H | ||
| #define __INC_FASTSPI_APOLLO3_H | ||
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| //#include "FastLED.h" | ||
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| FASTLED_NAMESPACE_BEGIN | ||
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| #if defined(AVR_HARDWARE_SPI) | ||
| template <uint8_t _DATA_PIN, uint8_t _CLOCK_PIN, uint32_t SPI_CLOCK_DIVIDER> | ||
| class APOLLO3HardwareSPIOutput { | ||
| Selectable *m_pSelect; | ||
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| public: | ||
| APOLLO3HardwareSPIOutput() { m_pSelect = NULL; } | ||
| APOLLO3HArdwareSPIOutput(Selectable *pSelect) { m_pSelect = pSelect; } | ||
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| #else | ||
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| // #define FASTLED_FORCE_SOFTWARE_SPI | ||
| // set the object representing the selectable | ||
| void setSelect(Selectable *pSelect) { /* TODO */ } | ||
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| #endif | ||
| // initialize the SPI subssytem | ||
| void init() { | ||
| pinMode(_DATA_PIN, OUTPUT); am_hal_gpio_fastgpio_enable(_DATA_PIN); | ||
| pinMode(_CLOCK_PIN, OUTPUT); am_hal_gpio_fastgpio_enable(_CLOCK_PIN); | ||
| //enableBurstMode(); //Optional. Go to 96MHz. Roughly doubles the speed of shiftOut and fastShiftOut | ||
| enableFastShift(_DATA_PIN, _CLOCK_PIN); | ||
| } | ||
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| // latch the CS select | ||
| void inline select() { /* TODO */ } | ||
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| // release the CS select | ||
| void inline release() { /* TODO */ } | ||
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| // wait until all queued up data has been written | ||
| static void waitFully() { /* TODO */ } | ||
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| // write a byte out via SPI (returns immediately on writing register) | ||
| static void writeByte(uint8_t b) { | ||
| fastShiftOut(_DATA_PIN, _CLOCK_PIN, MSBFIRST, b); | ||
| } | ||
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| // write a word out via SPI (returns immediately on writing register) | ||
| static void writeWord(uint16_t w) { | ||
| writeByte((uint8_t)((w >> 8) && 0xff)); | ||
| writeByte((uint8_t)(w && 0xff)); | ||
| } | ||
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| // A raw set of writing byte values, assumes setup/init/waiting done elsewhere | ||
| static void writeBytesValueRaw(uint8_t value, int len) { | ||
| while(len--) { writeByte(value); } | ||
| } | ||
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| // A full cycle of writing a value for len bytes, including select, release, and waiting | ||
| void writeBytesValue(uint8_t value, int len) { | ||
| select(); writeBytesValueRaw(value, len); release(); | ||
| } | ||
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| // A full cycle of writing a value for len bytes, including select, release, and waiting | ||
| template <class D> void writeBytes(register uint8_t *data, int len) { | ||
| uint8_t *end = data + len; | ||
| select(); | ||
| // could be optimized to write 16bit words out instead of 8bit bytes | ||
| while(data != end) { | ||
| writeByte(D::adjust(*data++)); | ||
| } | ||
| D::postBlock(len); | ||
| waitFully(); | ||
| release(); | ||
| } | ||
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| // A full cycle of writing a value for len bytes, including select, release, and waiting | ||
| void writeBytes(register uint8_t *data, int len) { writeBytes<DATA_NOP>(data, len); } | ||
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| // write a single bit out, which bit from the passed in byte is determined by template parameter | ||
| template <uint8_t BIT> inline static void writeBit(uint8_t b) { | ||
| waitFully(); | ||
| if(b & (1 << BIT)) { | ||
| FastPin<_DATA_PIN>::hi(); | ||
| } else { | ||
| FastPin<_DATA_PIN>::lo(); | ||
| } | ||
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| FastPin<_CLOCK_PIN>::hi(); | ||
| FastPin<_CLOCK_PIN>::lo(); | ||
| } | ||
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| // write a block of uint8_ts out in groups of three. len is the total number of uint8_ts to write out. The template | ||
| // parameters indicate how many uint8_ts to skip at the beginning and/or end of each grouping | ||
| template <uint8_t FLAGS, class D, EOrder RGB_ORDER> void writePixels(PixelController<RGB_ORDER> pixels) { | ||
| select(); | ||
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| int len = pixels.mLen; // unused? | ||
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| if(FLAGS & FLAG_START_BIT) { | ||
| while(pixels.has(1)) { | ||
| writeBit<0>(1); | ||
| writeByte(D::adjust(pixels.loadAndScale0())); | ||
| writeByte(D::adjust(pixels.loadAndScale1())); | ||
| writeByte(D::adjust(pixels.loadAndScale2())); | ||
| pixels.advanceData(); | ||
| pixels.stepDithering(); | ||
| } | ||
| } else { | ||
| while(pixels.has(1)) { | ||
| writeByte(D::adjust(pixels.loadAndScale0())); | ||
| writeByte(D::adjust(pixels.loadAndScale1())); | ||
| writeByte(D::adjust(pixels.loadAndScale2())); | ||
| pixels.advanceData(); | ||
| pixels.stepDithering(); | ||
| } | ||
| } | ||
| D::postBlock(len); | ||
| release(); | ||
| } | ||
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| FASTLED_NAMESPACE_END; | ||
| }; | ||
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| FASTLED_NAMESPACE_END | ||
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| #endif |