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Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

serial.h (5245B)

    

  1. /* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
  2. /*
  3.  * include/linux/serial.h
  4.  *
  5.  * Copyright (C) 1992 by Theodore Ts'o.
  6.  * 
  7.  * Redistribution of this file is permitted under the terms of the GNU 
  8.  * Public License (GPL)
  9.  */
  11. #ifndef _LINUX_SERIAL_H
  12. #define _LINUX_SERIAL_H
  14. #include <linux/const.h>
  15. #include <linux/types.h>
  17. #include <linux/tty_flags.h>
  20. struct serial_struct {
  21. 	int	type;
  22. 	int	line;
  23. 	unsigned int	port;
  24. 	int	irq;
  25. 	int	flags;
  26. 	int	xmit_fifo_size;
  27. 	int	custom_divisor;
  28. 	int	baud_base;
  29. 	unsigned short	close_delay;
  30. 	char	io_type;
  31. 	char	reserved_char[1];
  32. 	int	hub6;
  33. 	unsigned short	closing_wait; /* time to wait before closing */
  34. 	unsigned short	closing_wait2; /* no longer used... */
  35. 	unsigned char	*iomem_base;
  36. 	unsigned short	iomem_reg_shift;
  37. 	unsigned int	port_high;
  38. 	unsigned long	iomap_base;	/* cookie passed into ioremap */
  39. };
  41. /*
  42.  * For the close wait times, 0 means wait forever for serial port to
  43.  * flush its output.  65535 means don't wait at all.
  44.  */
  45. #define ASYNC_CLOSING_WAIT_INF	0
  46. #define ASYNC_CLOSING_WAIT_NONE	65535
  48. /*
  49.  * These are the supported serial types.
  50.  */
  51. #define PORT_UNKNOWN	0
  52. #define PORT_8250	1
  53. #define PORT_16450	2
  54. #define PORT_16550	3
  55. #define PORT_16550A	4
  56. #define PORT_CIRRUS     5
  57. #define PORT_16650	6
  58. #define PORT_16650V2	7
  59. #define PORT_16750	8
  60. #define PORT_STARTECH	9
  61. #define PORT_16C950	10	/* Oxford Semiconductor */
  62. #define PORT_16654	11
  63. #define PORT_16850	12
  64. #define PORT_RSA	13	/* RSA-DV II/S card */
  65. #define PORT_MAX	13
  67. #define SERIAL_IO_PORT	0
  68. #define SERIAL_IO_HUB6	1
  69. #define SERIAL_IO_MEM	2
  70. #define SERIAL_IO_MEM32	  3
  71. #define SERIAL_IO_AU	  4
  72. #define SERIAL_IO_TSI	  5
  73. #define SERIAL_IO_MEM32BE 6
  74. #define SERIAL_IO_MEM16	7
  76. #define UART_CLEAR_FIFO		0x01
  77. #define UART_USE_FIFO		0x02
  78. #define UART_STARTECH		0x04
  79. #define UART_NATSEMI		0x08
  82. /*
  83.  * Multiport serial configuration structure --- external structure
  84.  */
  85. struct serial_multiport_struct {
  86. 	int		irq;
  87. 	int		port1;
  88. 	unsigned char	mask1, match1;
  89. 	int		port2;
  90. 	unsigned char	mask2, match2;
  91. 	int		port3;
  92. 	unsigned char	mask3, match3;
  93. 	int		port4;
  94. 	unsigned char	mask4, match4;
  95. 	int		port_monitor;
  96. 	int	reserved[32];
  97. };
  99. /*
  100.  * Serial input interrupt line counters -- external structure
  101.  * Four lines can interrupt: CTS, DSR, RI, DCD
  102.  */
  103. struct serial_icounter_struct {
  104. 	int cts, dsr, rng, dcd;
  105. 	int rx, tx;
  106. 	int frame, overrun, parity, brk;
  107. 	int buf_overrun;
  108. 	int reserved[9];
  109. };
  111. /**
  112.  * struct serial_rs485 - serial interface for controlling RS485 settings.
  113.  * @flags:			RS485 feature flags.
  114.  * @delay_rts_before_send:	Delay before send (milliseconds).
  115.  * @delay_rts_after_send:	Delay after send (milliseconds).
  116.  * @addr_recv:			Receive filter for RS485 addressing mode
  117.  *				(used only when %SER_RS485_ADDR_RECV is set).
  118.  * @addr_dest:			Destination address for RS485 addressing mode
  119.  *				(used only when %SER_RS485_ADDR_DEST is set).
  120.  * @padding0:			Padding (set to zero).
  121.  * @padding1:			Padding (set to zero).
  122.  * @padding:			Deprecated, use @padding0 and @padding1 instead.
  123.  *				Do not use with @addr_recv and @addr_dest (due to
  124.  *				overlap).
  125.  *
  126.  * Serial interface for controlling RS485 settings on chips with suitable
  127.  * support. Set with TIOCSRS485 and get with TIOCGRS485 if supported by your
  128.  * platform. The set function returns the new state, with any unsupported bits
  129.  * reverted appropriately.
  130.  *
  131.  * The flag bits are:
  132.  *
  133.  * * %SER_RS485_ENABLED		- RS485 enabled.
  134.  * * %SER_RS485_RTS_ON_SEND	- Logical level for RTS pin when sending.
  135.  * * %SER_RS485_RTS_AFTER_SEND	- Logical level for RTS pin after sent.
  136.  * * %SER_RS485_RX_DURING_TX	- Full-duplex RS485 line.
  137.  * * %SER_RS485_TERMINATE_BUS	- Enable bus termination (if supported).
  138.  * * %SER_RS485_ADDRB		- Enable RS485 addressing mode.
  139.  * * %SER_RS485_ADDR_RECV - Receive address filter (enables @addr_recv). Requires %SER_RS485_ADDRB.
  140.  * * %SER_RS485_ADDR_DEST - Destination address (enables @addr_dest). Requires %SER_RS485_ADDRB.
  141.  * * %SER_RS485_MODE_RS422	- Enable RS422. Requires %SER_RS485_ENABLED.
  142.  */
  143. struct serial_rs485 {
  144. 	__u32	flags;
  145. #define SER_RS485_ENABLED		_BITUL(0)
  146. #define SER_RS485_RTS_ON_SEND		_BITUL(1)
  147. #define SER_RS485_RTS_AFTER_SEND	_BITUL(2)
  148. /* Placeholder for bit 3: SER_RS485_RTS_BEFORE_SEND, which isn't used anymore */
  149. #define SER_RS485_RX_DURING_TX		_BITUL(4)
  150. #define SER_RS485_TERMINATE_BUS		_BITUL(5)
  151. #define SER_RS485_ADDRB			_BITUL(6)
  152. #define SER_RS485_ADDR_RECV		_BITUL(7)
  153. #define SER_RS485_ADDR_DEST		_BITUL(8)
  154. #define SER_RS485_MODE_RS422		_BITUL(9)
  156. 	__u32	delay_rts_before_send;
  157. 	__u32	delay_rts_after_send;
  159. 	/* The fields below are defined by flags */
  160. 	union {
  161. 		__u32	padding[5];		/* Memory is cheap, new structs are a pain */
  163. 		struct {
  164. 			__u8	addr_recv;
  165. 			__u8	addr_dest;
  166. 			__u8	padding0[2];
  167. 			__u32	padding1[4];
  168. 		};
  169. 	};
  170. };
  172. /*
  173.  * Serial interface for controlling ISO7816 settings on chips with suitable
  174.  * support. Set with TIOCSISO7816 and get with TIOCGISO7816 if supported by
  175.  * your platform.
  176.  */
  177. struct serial_iso7816 {
  178. 	__u32	flags;			/* ISO7816 feature flags */
  179. #define SER_ISO7816_ENABLED		(1 << 0)
  180. #define SER_ISO7816_T_PARAM		(0x0f << 4)
  181. #define SER_ISO7816_T(t)		(((t) & 0x0f) << 4)
  182. 	__u32	tg;
  183. 	__u32	sc_fi;
  184. 	__u32	sc_di;
  185. 	__u32	clk;
  186. 	__u32	reserved[5];
  187. };
  189. #endif /* _LINUX_SERIAL_H */