1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef SPIDEV_H 20 #define SPIDEV_H 21 #include <linux/types.h> 22 #define SPI_CPHA 0x01 23 #define SPI_CPOL 0x02 24 #define SPI_MODE_0 (0 | 0) 25 #define SPI_MODE_1 (0 | SPI_CPHA) 26 #define SPI_MODE_2 (SPI_CPOL | 0) 27 #define SPI_MODE_3 (SPI_CPOL | SPI_CPHA) 28 #define SPI_CS_HIGH 0x04 29 #define SPI_LSB_FIRST 0x08 30 #define SPI_3WIRE 0x10 31 #define SPI_LOOP 0x20 32 #define SPI_NO_CS 0x40 33 #define SPI_READY 0x80 34 #define SPI_TX_DUAL 0x100 35 #define SPI_TX_QUAD 0x200 36 #define SPI_RX_DUAL 0x400 37 #define SPI_RX_QUAD 0x800 38 #define SPI_IOC_MAGIC 'k' 39 struct spi_ioc_transfer { 40 __u64 tx_buf; 41 __u64 rx_buf; 42 __u32 len; 43 __u32 speed_hz; 44 __u16 delay_usecs; 45 __u8 bits_per_word; 46 __u8 cs_change; 47 __u8 tx_nbits; 48 __u8 rx_nbits; 49 __u16 pad; 50 }; 51 #define SPI_MSGSIZE(N) ((((N) * (sizeof(struct spi_ioc_transfer))) < (1 << _IOC_SIZEBITS)) ? ((N) * (sizeof(struct spi_ioc_transfer))) : 0) 52 #define SPI_IOC_MESSAGE(N) _IOW(SPI_IOC_MAGIC, 0, char[SPI_MSGSIZE(N)]) 53 #define SPI_IOC_RD_MODE _IOR(SPI_IOC_MAGIC, 1, __u8) 54 #define SPI_IOC_WR_MODE _IOW(SPI_IOC_MAGIC, 1, __u8) 55 #define SPI_IOC_RD_LSB_FIRST _IOR(SPI_IOC_MAGIC, 2, __u8) 56 #define SPI_IOC_WR_LSB_FIRST _IOW(SPI_IOC_MAGIC, 2, __u8) 57 #define SPI_IOC_RD_BITS_PER_WORD _IOR(SPI_IOC_MAGIC, 3, __u8) 58 #define SPI_IOC_WR_BITS_PER_WORD _IOW(SPI_IOC_MAGIC, 3, __u8) 59 #define SPI_IOC_RD_MAX_SPEED_HZ _IOR(SPI_IOC_MAGIC, 4, __u32) 60 #define SPI_IOC_WR_MAX_SPEED_HZ _IOW(SPI_IOC_MAGIC, 4, __u32) 61 #define SPI_IOC_RD_MODE32 _IOR(SPI_IOC_MAGIC, 5, __u32) 62 #define SPI_IOC_WR_MODE32 _IOW(SPI_IOC_MAGIC, 5, __u32) 63 #endif 64
