@ -11,26 +11,26 @@
# define _SPI_H_
/* SPI mode flags */
# define SPI_CPHA 0x01 /* clock phase */
# define SPI_CPOL 0x02 /* clock polarity */
# define SPI_CPHA BIT(0) /* clock phase */
# define SPI_CPOL BIT(1) /* clock polarity */
# define SPI_MODE_0 (0|0) /* (original MicroWire) */
# define SPI_MODE_1 (0|SPI_CPHA)
# define SPI_MODE_2 (SPI_CPOL|0)
# define SPI_MODE_3 (SPI_CPOL|SPI_CPHA)
# define SPI_CS_HIGH 0x04 /* CS active high */
# define SPI_LSB_FIRST 0x08 /* per-word bits-on-wire */
# define SPI_3WIRE 0x10 /* SI/SO signals shared */
# define SPI_LOOP 0x20 /* loopback mode */
# define SPI_SLAVE 0x40 /* slave mode */
# define SPI_PREAMBLE 0x80 /* Skip preamble bytes */
# define SPI_TX_BYTE 0x100 /* transmit with 1 wire byte */
# define SPI_TX_QUAD 0x200 /* transmit with 4 wires */
# define SPI_CS_HIGH BIT(2) /* CS active high */
# define SPI_LSB_FIRST BIT(3) /* per-word bits-on-wire */
# define SPI_3WIRE BIT(4) /* SI/SO signals shared */
# define SPI_LOOP BIT(5) /* loopback mode */
# define SPI_SLAVE BIT(6) /* slave mode */
# define SPI_PREAMBLE BIT(7) /* Skip preamble bytes */
# define SPI_TX_BYTE BIT(8) /* transmit with 1 wire byte */
# define SPI_TX_QUAD BIT(9) /* transmit with 4 wires */
/* SPI mode_rx flags */
# define SPI_RX_SLOW (1 << 0)
# define SPI_RX_FAST (1 << 1)
# define SPI_RX_DUAL (1 << 2)
# define SPI_RX_QUAD (1 << 4)
# define SPI_RX_SLOW BIT (0)
# define SPI_RX_FAST BIT (1)
# define SPI_RX_DUAL BIT (2)
# define SPI_RX_QUAD BIT (4)
/* SPI bus connection options - see enum spi_dual_flash */
# define SPI_CONN_DUAL_SHARED (1 << 0)
@ -116,12 +116,12 @@ struct spi_slave {
u8 option ;
u8 flags ;
# define SPI_XFER_BEGIN 0x01 /* Assert CS before transfer */
# define SPI_XFER_END 0x02 /* Deassert CS after transfer */
# define SPI_XFER_BEGIN BIT(0) /* Assert CS before transfer */
# define SPI_XFER_END BIT(1) /* Deassert CS after transfer */
# define SPI_XFER_ONCE (SPI_XFER_BEGIN | SPI_XFER_END)
# define SPI_XFER_MMAP 0x04 /* Memory Mapped start */
# define SPI_XFER_MMAP_END 0x08 /* Memory Mapped End */
# define SPI_XFER_U_PAGE 0x10
# define SPI_XFER_MMAP BIT(2) /* Memory Mapped start */
# define SPI_XFER_MMAP_END BIT(3) /* Memory Mapped End */
# define SPI_XFER_U_PAGE BIT(4)
} ;
/**