patch-2.4.2 linux/arch/cris/drivers/serial.h

• Lines: 107
• Date: Thu Feb 8 16:32:44 2001
• Orig file: v2.4.1/linux/arch/cris/drivers/serial.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.1/linux/arch/cris/drivers/serial.h linux/arch/cris/drivers/serial.h
@@ -0,0 +1,106 @@
+/*
+ * serial.h: Arch-dep definitions for the Etrax100 serial driver.
+ *
+ * Copyright (C) 1998, 1999, 2000 Axis Communications AB
+ */
+
+#ifndef _ETRAX100_SERIAL_H
+#define _ETRAX100_SERIAL_H
+
+#include <linux/config.h>
+#include <linux/circ_buf.h>
+#include <asm/termios.h>
+
+/* Software state per channel */
+
+#ifdef __KERNEL__
+/*
+ * This is our internal structure for each serial port's state.
+ * 
+ * Many fields are paralleled by the structure used by the serial_struct
+ * structure.
+ *
+ * For definitions of the flags field, see tty.h
+ */
+
+struct e100_serial {
+	int                   baud;
+	volatile unsigned char *	port; /* R_SERIALx_CTRL */
+	unsigned long	        irq;  /* bitnr in R_IRQ_MASK2 for dmaX_descr */
+
+	volatile char *oclrintradr; /* adr to R_DMA_CHx_CLR_INTR, output */
+	volatile unsigned long *ofirstadr;   /* adr to R_DMA_CHx_FIRST, output */
+	volatile char *ocmdadr;     /* adr to R_DMA_CHx_CMD, output */
+	const volatile unsigned short *ostatusadr;  /* adr to R_DMA_CHx_STATUS, output */
+	volatile unsigned long  *ohwswadr;    /* adr to R_DMA_CHx_HWSW, output */
+
+	volatile char *iclrintradr; /* adr to R_DMA_CHx_CLR_INTR, input */
+	volatile unsigned long *ifirstadr;   /* adr to R_DMA_CHx_FIRST, input */
+	volatile char *icmdadr;     /* adr to R_DMA_CHx_CMD, input */
+	const volatile unsigned short *istatusadr;  /* adr to R_DMA_CHx_STATUS, input */
+	volatile unsigned long  *ihwswadr;    /* adr to R_DMA_CHx_HWSW, input */
+
+	int			flags; 		/* defined in tty.h */
+
+	unsigned char           rx_ctrl; /* shadow for R_SERIALx_REC_CTRL */
+	unsigned char           tx_ctrl; /* shadow for R_SERIALx_TR_CTRL */
+	unsigned char           iseteop; /* bit number for R_SET_EOP for the input dma */
+/* end of fields defined in rs_table[] in .c-file */
+	unsigned char           fifo_didmagic; /* a fifo eop has been forced */
+
+	struct etrax_dma_descr tr_descr, rec_descr;
+
+	int                     fifo_magic; /* fifo amount - bytes left in dma buffer */
+
+	volatile int            tr_running; /* 1 if output is running */
+
+	struct tty_struct 	*tty;
+	int			read_status_mask;
+	int			ignore_status_mask;
+	int			x_char;	/* xon/xoff character */
+	int			close_delay;
+	unsigned short	        closing_wait;
+	unsigned short	        closing_wait2;
+	unsigned long		event;
+	unsigned long		last_active;
+	int			line;
+	int                     type;  /* PORT_ETRAX100 */
+	int			count;	    /* # of fd on device */
+	int			blocked_open; /* # of blocked opens */
+	long			session; /* Session of opening process */
+	long			pgrp; /* pgrp of opening process */
+	struct circ_buf         xmit;
+
+	struct tq_struct	tqueue;
+	struct async_icount     icount;   /* error-statistics etc.*/
+	struct termios	        normal_termios;
+	struct termios	        callout_termios;
+#ifdef DECLARE_WAITQUEUE
+	wait_queue_head_t       open_wait;
+        wait_queue_head_t       close_wait;
+#else   
+        struct wait_queue       *open_wait;
+        struct wait_queue       *close_wait;
+#endif  
+
+#ifdef CONFIG_RS485
+	struct rs485_control    rs485;  /* RS-485 support */
+#endif
+};
+
+/* this PORT is not in the standard serial.h. it's not actually used for
+ * anything since we only have one type of async serial-port anyway in this
+ * system.
+ */
+
+#define PORT_ETRAX100 1
+
+/*
+ * Events are used to schedule things to happen at timer-interrupt
+ * time, instead of at rs interrupt time.
+ */
+#define RS_EVENT_WRITE_WAKEUP	0
+
+#endif /* __KERNEL__ */
+
+#endif /* !(_ETRAX100_SERIAL_H) */