2 * Copyright (c) 1991 The Regents of the University of California.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * $DragonFly: src/sys/dev/serial/sio/sio_private.h,v 1.2 2004/09/19 02:05:54 dillon Exp $
37 /* checks in flags for multiport and which is multiport "master chip"
40 #define COM_ISMULTIPORT(flags) ((flags) & 0x01)
41 #define COM_MPMASTER(flags) (((flags) >> 8) & 0x0ff)
42 #define COM_NOTAST4(flags) ((flags) & 0x04)
43 #endif /* COM_MULTIPORT */
45 #define COM_CONSOLE(flags) ((flags) & 0x10)
46 #define COM_FORCECONSOLE(flags) ((flags) & 0x20)
47 #define COM_LLCONSOLE(flags) ((flags) & 0x40)
48 #define COM_DEBUGGER(flags) ((flags) & 0x80)
49 #define COM_LOSESOUTINTS(flags) ((flags) & 0x08)
50 #define COM_NOFIFO(flags) ((flags) & 0x02)
51 #define COM_ST16650A(flags) ((flags) & 0x20000)
52 #define COM_C_NOPROBE (0x40000)
53 #define COM_NOPROBE(flags) ((flags) & COM_C_NOPROBE)
54 #define COM_C_IIR_TXRDYBUG (0x80000)
55 #define COM_IIR_TXRDYBUG(flags) ((flags) & COM_C_IIR_TXRDYBUG)
56 #define COM_TI16754(flags) ((flags) & 0x200000)
57 #define COM_FIFOSIZE(flags) (((flags) & 0xff000000) >> 24)
60 #define CE_RECORD(com, errnum) (++(com)->delta_error_counts[errnum])
62 /* types. XXX - should be elsewhere */
63 typedef u_int Port_t; /* hardware port */
64 typedef u_char bool_t; /* boolean */
66 /* queue of linear buffers */
68 u_char *l_head; /* next char to process */
69 u_char *l_tail; /* one past the last char to process */
70 struct lbq *l_next; /* next in queue */
71 bool_t l_queued; /* nonzero if queued */
74 /* com device structure */
76 u_int flags; /* Copy isa device flags */
77 u_char state; /* miscellaneous flag bits */
78 bool_t active_out; /* nonzero if the callout device is open */
79 u_char cfcr_image; /* copy of value written to CFCR */
81 bool_t esp; /* is this unit a hayes esp board? */
83 u_char extra_state; /* more flag bits, separate for order trick */
84 u_char fifo_image; /* copy of value written to FIFO */
85 bool_t hasfifo; /* nonzero for 16550 UARTs */
86 bool_t st16650a; /* Is a Startech 16650A or RTS/CTS compat */
87 bool_t loses_outints; /* nonzero if device loses output interrupts */
88 u_char mcr_image; /* copy of value written to MCR */
90 bool_t multiport; /* is this unit part of a multiport device? */
91 #endif /* COM_MULTIPORT */
92 bool_t no_irq; /* nonzero if irq is not attached */
93 bool_t gone; /* hardware disappeared */
94 bool_t poll; /* nonzero if polling is required */
95 bool_t poll_output; /* nonzero if polling for output is required */
96 int unit; /* unit number */
97 int dtr_wait; /* time to hold DTR down on close (* 1/hz) */
98 struct callout dtr_ch;
99 struct callout busy_ch;
101 u_int wopeners; /* # processes waiting for DCD in open() */
104 * The high level of the driver never reads status registers directly
105 * because there would be too many side effects to handle conveniently.
106 * Instead, it reads copies of the registers stored here by the
109 u_char last_modem_status; /* last MSR read by intr handler */
110 u_char prev_modem_status; /* last MSR handled by high level */
112 u_char hotchar; /* ldisc-specific char to be handled ASAP */
113 u_char *ibuf; /* start of input buffer */
114 u_char *ibufend; /* end of input buffer */
115 u_char *ibufold; /* old input buffer, to be freed */
116 u_char *ihighwater; /* threshold in input buffer */
117 u_char *iptr; /* next free spot in input buffer */
118 int ibufsize; /* size of ibuf (not include error bytes) */
119 int ierroff; /* offset of error bytes in ibuf */
121 struct lbq obufq; /* head of queue of output buffers */
122 struct lbq obufs[2]; /* output buffers */
125 bus_space_handle_t bsh;
127 Port_t data_port; /* i/o ports */
132 Port_t modem_ctl_port;
133 Port_t line_status_port;
134 Port_t modem_status_port;
135 Port_t intr_ctl_port; /* Ports of IIR register */
137 struct tty *tp; /* cross reference */
140 struct termios it_in; /* should be in struct tty */
141 struct termios it_out;
144 struct termios lt_in; /* should be in struct tty */
145 struct termios lt_out;
148 bool_t do_dcd_timestamp;
149 struct timeval timestamp;
150 struct timeval dcd_timestamp;
151 struct pps_state pps;
153 u_long bytes_in; /* statistics */
155 u_int delta_error_counts[CE_NTYPES];
156 u_long error_counts[CE_NTYPES];
160 struct resource *irqres;
161 struct resource *ioportres;
165 * Data area for output buffers. Someday we should build the output
166 * buffer queue without copying data.
172 #define SET_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) | (bit))
173 #define CLR_FLAG(dev, bit) device_set_flags(dev, device_get_flags(dev) & ~(bit))
175 extern devclass_t sio_devclass;
177 int sioattach (device_t dev, int rid, u_long rclk);
178 int sioprobe (device_t dev, int xrid, u_long rclk);