SPI_SH_TBE
while (!(spi_sh_read(ss, SPI_SH_CR1) & SPI_SH_TBE)) {
ss->cr1 &= ~SPI_SH_TBE;
spi_sh_set_bit(ss, SPI_SH_TBE, SPI_SH_CR4);
ss->cr1 & SPI_SH_TBE,
if (ret == 0 && !(ss->cr1 & SPI_SH_TBE)) {
ss->cr1 &= ~SPI_SH_TBE;
spi_sh_set_bit(ss, SPI_SH_TBE, SPI_SH_CR4);
ss->cr1 & SPI_SH_TBE,
if (ret == 0 && (ss->cr1 & SPI_SH_TBE)) {
if (cr1 & SPI_SH_TBE)
ss->cr1 |= SPI_SH_TBE;