1 /* 2 * Copyright ( C) 2015-2020 Alibaba Group Holding Limited 3 */ 4 5 #ifndef _IO_UART_H_ 6 #define _IO_UART_H_ 7 8 #define IOC_UART_BASE 'U' 9 #define IOC_UART_SET_CFLAG IOC_UART_BASE + 1 10 #define IOC_UART_GET_CFLAG IOC_UART_BASE + 2 11 #define IOC_UART_DMA_CTL IOC_UART_BASE + 3 12 #define IOC_UART_TRX_CTL IOC_UART_BASE + 4 // disable Tx or Rx 13 #define IOC_UART_POLL_TEST IOC_UART_BASE + 5 // for test purpose 14 15 /* argument definition */ 16 17 /* C_ Cflag bit meaning */ 18 #define CBAUD 0x0010017 19 #define B0 0x0000000 /* ignore */ 20 #define B50 0x0000001 21 #define B75 0x0000002 22 #define B110 0x0000003 23 #define B134 0x0000004 24 #define B150 0x0000005 25 #define B200 0x0000006 26 #define B300 0x0000007 27 #define B600 0x0000010 28 #define B1200 0x0000011 29 #define B1800 0x0000012 30 #define B2400 0x0000013 31 #define B4800 0x0000014 32 #define B9600 0x0000015 33 #define B19200 0x0000016 34 #define B38400 0x0000017 35 #define EXTA 0xB19200 36 #define EXTB 0xB38400 37 38 #define CBAUDEX 0x0010000 39 #define B57600 0x0010001 40 #define B115200 0x0010002 41 #define B230400 0x0010003 42 #define B460800 0x0010004 43 #define B500000 0x0010005 44 #define B576000 0x0010006 45 #define B921600 0x0010007 46 #define B1000000 0x0010010 47 #define B1152000 0x0010011 48 #define B1500000 0x0010012 49 #define B2000000 0x0010013 50 #define B2500000 0x0010014 51 #define B3000000 0x0010015 52 #define B3500000 0x0010016 53 #define B4000000 0x0010017 54 55 #define CSIZE 0x0000060 56 #define CS5 0x0000000 57 #define CS6 0x0000020 58 #define CS7 0x0000040 59 #define CS8 0x0000060 60 61 #define CSTOPB 0x0000100 62 #define CREAD 0x0000200 63 #define PARENB 0x0000400 64 #define PARODD 0x0001000 65 66 #define CRTS_CTS 0x30000000 /* flow Control */ 67 #define CRTS 0x10000000 /* flow Control */ 68 #define CCTS 0x20000000 /* flow Control */ 69 70 int vfs_uart_drv_init (void); 71 72 #endif //_IO_UART_H_ 73