This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / drivers / serial / crisv10.h

diff --git a/drivers/serial/crisv10.h b/drivers/serial/crisv10.h
new file mode 100644 (file)
index 0000000..1800c0e
--- /dev/null
+++ b/drivers/serial/crisv10.h
@@ -0,0 +1,137 @@
+/*
+ * serial.h: Arch-dep definitions for the Etrax100 serial driver.
+ *
+ * Copyright (C) 1998, 1999, 2000 Axis Communications AB
+ */
+
+#ifndef _ETRAX_SERIAL_H
+#define _ETRAX_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
+ */
+
+#define SERIAL_RECV_DESCRIPTORS 8
+
+struct etrax_recv_buffer {
+       struct etrax_recv_buffer *next;
+       unsigned short length;
+       unsigned char error;
+       unsigned char pad;
+
+       unsigned char buffer[0];
+};
+
+struct e100_serial {
+       int                     baud;
+       volatile u8             *port; /* R_SERIALx_CTRL */
+       u32                     irq;  /* bitnr in R_IRQ_MASK2 for dmaX_descr */
+
+       /* Output registers */
+       volatile u8             *oclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
+       volatile u32            *ofirstadr;   /* adr to R_DMA_CHx_FIRST */
+       volatile u8             *ocmdadr;     /* adr to R_DMA_CHx_CMD */
+       const volatile u8       *ostatusadr;  /* adr to R_DMA_CHx_STATUS */
+
+       /* Input registers */
+       volatile u8             *iclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
+       volatile u32            *ifirstadr;   /* adr to R_DMA_CHx_FIRST */
+       volatile u8             *icmdadr;     /* adr to R_DMA_CHx_CMD */
+       volatile u32            *idescradr;   /* adr to R_DMA_CHx_DESCR */
+
+       int                     flags;  /* defined in tty.h */
+
+       u8                      rx_ctrl; /* shadow for R_SERIALx_REC_CTRL */
+       u8                      tx_ctrl; /* shadow for R_SERIALx_TR_CTRL */
+       u8                      iseteop; /* bit number for R_SET_EOP for the input dma */
+       int                     enabled; /* Set to 1 if the port is enabled in HW config */
+
+       u8              dma_out_enabled:1; /* Set to 1 if DMA should be used */
+       u8              dma_in_enabled:1;  /* Set to 1 if DMA should be used */
+
+       /* end of fields defined in rs_table[] in .c-file */
+       u8              uses_dma_in;  /* Set to 1 if DMA is used */
+       u8              uses_dma_out; /* Set to 1 if DMA is used */
+       u8              forced_eop;   /* a fifo eop has been forced */
+       int                     baud_base;     /* For special baudrates */
+       int                     custom_divisor; /* For special baudrates */
+       struct etrax_dma_descr  tr_descr;
+       struct etrax_dma_descr  rec_descr[SERIAL_RECV_DESCRIPTORS];
+       int                     cur_rec_descr;
+
+       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_ETRAX */
+       int                     count;      /* # of fd on device */
+       int                     blocked_open; /* # of blocked opens */
+       struct circ_buf         xmit;
+       struct etrax_recv_buffer *first_recv_buffer;
+       struct etrax_recv_buffer *last_recv_buffer;
+       unsigned int            recv_cnt;
+       unsigned int            max_recv_cnt;
+
+       struct work_struct      work;
+       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
+
+       unsigned long           char_time_usec;       /* The time for 1 char, in usecs */
+       unsigned long           flush_time_usec;      /* How often we should flush */
+       unsigned long           last_tx_active_usec;  /* Last tx usec in the jiffies */
+       unsigned long           last_tx_active;       /* Last tx time in jiffies */
+       unsigned long           last_rx_active_usec;  /* Last rx usec in the jiffies */
+       unsigned long           last_rx_active;       /* Last rx time in jiffies */
+
+       int                     break_detected_cnt;
+       int                     errorcode;
+
+#ifdef CONFIG_ETRAX_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_ETRAX 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 /* !_ETRAX_SERIAL_H */