| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef SPIDEV_H |
| #define SPIDEV_H |
| #include <linux/types.h> |
| #include <linux/ioctl.h> |
| #define SPI_CPHA 0x01 |
| #define SPI_CPOL 0x02 |
| #define SPI_MODE_0 (0 | 0) |
| #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 |
| #define SPI_LSB_FIRST 0x08 |
| #define SPI_3WIRE 0x10 |
| #define SPI_LOOP 0x20 |
| #define SPI_NO_CS 0x40 |
| #define SPI_READY 0x80 |
| #define SPI_TX_DUAL 0x100 |
| #define SPI_TX_QUAD 0x200 |
| #define SPI_RX_DUAL 0x400 |
| #define SPI_RX_QUAD 0x800 |
| #define SPI_IOC_MAGIC 'k' |
| struct spi_ioc_transfer { |
| __u64 tx_buf; |
| __u64 rx_buf; |
| __u32 len; |
| __u32 speed_hz; |
| __u16 delay_usecs; |
| __u8 bits_per_word; |
| __u8 cs_change; |
| __u8 tx_nbits; |
| __u8 rx_nbits; |
| __u8 word_delay_usecs; |
| __u8 pad; |
| }; |
| #define SPI_MSGSIZE(N) ((((N) * (sizeof(struct spi_ioc_transfer))) < (1 << _IOC_SIZEBITS)) ? ((N) * (sizeof(struct spi_ioc_transfer))) : 0) |
| #define SPI_IOC_MESSAGE(N) _IOW(SPI_IOC_MAGIC, 0, char[SPI_MSGSIZE(N)]) |
| #define SPI_IOC_RD_MODE _IOR(SPI_IOC_MAGIC, 1, __u8) |
| #define SPI_IOC_WR_MODE _IOW(SPI_IOC_MAGIC, 1, __u8) |
| #define SPI_IOC_RD_LSB_FIRST _IOR(SPI_IOC_MAGIC, 2, __u8) |
| #define SPI_IOC_WR_LSB_FIRST _IOW(SPI_IOC_MAGIC, 2, __u8) |
| #define SPI_IOC_RD_BITS_PER_WORD _IOR(SPI_IOC_MAGIC, 3, __u8) |
| #define SPI_IOC_WR_BITS_PER_WORD _IOW(SPI_IOC_MAGIC, 3, __u8) |
| #define SPI_IOC_RD_MAX_SPEED_HZ _IOR(SPI_IOC_MAGIC, 4, __u32) |
| #define SPI_IOC_WR_MAX_SPEED_HZ _IOW(SPI_IOC_MAGIC, 4, __u32) |
| #define SPI_IOC_RD_MODE32 _IOR(SPI_IOC_MAGIC, 5, __u32) |
| #define SPI_IOC_WR_MODE32 _IOW(SPI_IOC_MAGIC, 5, __u32) |
| #endif |