diff options
Diffstat (limited to 'code/fe310/eos/spi.c')
| -rw-r--r-- | code/fe310/eos/spi.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/code/fe310/eos/spi.c b/code/fe310/eos/spi.c index 725db13..adc66a6 100644 --- a/code/fe310/eos/spi.c +++ b/code/fe310/eos/spi.c @@ -94,7 +94,7 @@ void _eos_spi_xchg_init(unsigned char *buffer, uint16_t len, uint8_t flags) { spi_state_idx_rx = 0; } -static void spi_xchg_wait(void) { +static void spi_xchg_finish(void) { volatile uint8_t done = 0; while (!done) { @@ -107,7 +107,7 @@ static void spi_xchg_wait(void) { } void eos_spi_xchg(unsigned char *buffer, uint16_t len, uint8_t flags) { - if (spi_in_xchg) spi_xchg_wait(); + if (spi_in_xchg) spi_xchg_finish(); spi_in_xchg=1; _eos_spi_xchg_init(buffer, len, flags); @@ -173,7 +173,7 @@ uint8_t eos_spi_xchg8(uint8_t data, uint8_t flags) { spi_state_flags &= 0xF0; spi_state_flags |= flags; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = data; if (rx) { @@ -192,14 +192,14 @@ uint16_t eos_spi_xchg16(uint16_t data, uint8_t flags) { spi_state_flags |= flags; if (flags & EOS_SPI_FLAG_BSWAP) { - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF); - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF00) >> 8; } else { - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF00) >> 8; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF); } @@ -229,18 +229,18 @@ uint32_t eos_spi_xchg24(uint32_t data, uint8_t flags) { spi_state_flags |= flags; if (flags & EOS_SPI_FLAG_BSWAP) { - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF); - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16; } else { - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF); } @@ -274,22 +274,22 @@ uint32_t eos_spi_xchg32(uint32_t data, uint8_t flags) { spi_state_flags |= flags; if (flags & EOS_SPI_FLAG_BSWAP) { - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF); - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF000000) >> 24; } else { - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0xFF000000) >> 24; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x00FF0000) >> 16; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x0000FF00) >> 8; - while ((x = SPI1_REG(SPI_REG_TXFIFO)) & SPI_TXFIFO_FULL); + while (SPI1_REG(SPI_REG_TXFIFO) & SPI_TXFIFO_FULL); SPI1_REG(SPI_REG_TXFIFO) = (data & 0x000000FF); } @@ -321,7 +321,7 @@ uint32_t eos_spi_xchg32(uint32_t data, uint8_t flags) { void eos_spi_flush(void) { volatile uint32_t x = 0; - if (spi_in_xchg) spi_xchg_wait(); + if (spi_in_xchg) spi_xchg_finish(); SPI1_REG(SPI_REG_TXCTRL) = SPI_TXWM(1); while (!x) { |