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Call spi_write_blocking directly for RP2040

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This is around a 6-13x speed up in graphicstest (at 62.5Mhz)
This commit is contained in:
Charlie Birks
2021-09-14 13:44:35 +01:00
parent 5bbee15ff6
commit a3bf8baeee
1 changed files with 18 additions and 1 deletions
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Adafruit_SPITFT.cpp
+18 -1
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@@ -1326,7 +1326,13 @@ void Adafruit_SPITFT::writeColor(uint16_t color, uint32_t len) {
hwspi._spi->write(lo);
}
} while (len);
#else // !ESP8266
#elif defined(ARDUINO_ARCH_RP2040)
spi_inst_t *pi_spi = hwspi._spi == &SPI ? spi0 : spi1;
color = __builtin_bswap16(color);
while (len--)
spi_write_blocking(pi_spi, (uint8_t *)&color, 2);
#else // !ESP8266 && !ARDUINO_ARCH_RP2040
while (len--) {
#if defined(__AVR__)
AVR_WRITESPI(hi);
@@ -2079,6 +2085,9 @@ void Adafruit_SPITFT::spiWrite(uint8_t b) {
AVR_WRITESPI(b);
#elif defined(ESP8266) || defined(ESP32)
hwspi._spi->write(b);
#elif defined(ARDUINO_ARCH_RP2040)
spi_inst_t *pi_spi = hwspi._spi == &SPI ? spi0 : spi1;
spi_write_blocking(pi_spi, &b, 1);
#else
hwspi._spi->transfer(b);
#endif
@@ -2385,6 +2394,10 @@ void Adafruit_SPITFT::SPI_WRITE16(uint16_t w) {
AVR_WRITESPI(w);
#elif defined(ESP8266) || defined(ESP32)
hwspi._spi->write16(w);
#elif defined(ARDUINO_ARCH_RP2040)
spi_inst_t *pi_spi = hwspi._spi == &SPI ? spi0 : spi1;
w = __builtin_bswap16(w);
spi_write_blocking(pi_spi, (uint8_t *)&w, 2);
#else
// MSB, LSB because TFTs are generally big-endian
hwspi._spi->transfer(w >> 8);
@@ -2437,6 +2450,10 @@ void Adafruit_SPITFT::SPI_WRITE32(uint32_t l) {
AVR_WRITESPI(l);
#elif defined(ESP8266) || defined(ESP32)
hwspi._spi->write32(l);
#elif defined(ARDUINO_ARCH_RP2040)
spi_inst_t *pi_spi = hwspi._spi == &SPI ? spi0 : spi1;
l = __builtin_bswap32(l);
spi_write_blocking(pi_spi, (uint8_t *)&l, 4);
#else
hwspi._spi->transfer(l >> 24);
hwspi._spi->transfer(l >> 16);