diff options
Diffstat (limited to 'drivers/bus/qspi.h')
| -rw-r--r-- | drivers/bus/qspi.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/bus/qspi.h b/drivers/bus/qspi.h index 31c9d14fc..c82796fac 100644 --- a/drivers/bus/qspi.h +++ b/drivers/bus/qspi.h @@ -28,6 +28,8 @@ #include "py/mphal.h" +#define MP_SPI_ADDR_IS_32B(addr) (addr & 0xff000000) + enum { MP_QSPI_IOCTL_INIT, MP_QSPI_IOCTL_DEINIT, @@ -54,4 +56,19 @@ typedef struct _mp_soft_qspi_obj_t { extern const mp_qspi_proto_t mp_soft_qspi_proto; +static inline uint8_t mp_spi_set_addr_buff(uint8_t *buf, uint32_t addr) { + if (MP_SPI_ADDR_IS_32B(addr)) { + buf[0] = addr >> 24; + buf[1] = addr >> 16; + buf[2] = addr >> 8; + buf[3] = addr; + return 4; + } else { + buf[0] = addr >> 16; + buf[1] = addr >> 8; + buf[2] = addr; + return 3; + } +} + #endif // MICROPY_INCLUDED_DRIVERS_BUS_QSPI_H |