1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 20 * 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 31 * SUCH DAMAGE. 32 * 33 * $DragonFly: src/sys/dev/serial/sio/sio_private.h,v 1.2 2004/09/19 02:05:54 dillon Exp $ 34 */ 35 36 #ifdef COM_MULTIPORT 37 /* checks in flags for multiport and which is multiport "master chip" 38 * for a given card 39 */ 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 */ 44 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) 58 59 #define CE_NTYPES 3 60 #define CE_RECORD(com, errnum) (++(com)->delta_error_counts[errnum]) 61 62 /* types. XXX - should be elsewhere */ 63 typedef u_int Port_t; /* hardware port */ 64 typedef u_char bool_t; /* boolean */ 65 66 /* queue of linear buffers */ 67 struct lbq { 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 */ 72 }; 73 74 /* com device structure */ 75 struct com_s { 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 */ 80 #ifdef COM_ESP 81 bool_t esp; /* is this unit a hayes esp board? */ 82 #endif 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 */ 89 #ifdef COM_MULTIPORT 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; 100 u_int tx_fifo_size; 101 u_int wopeners; /* # processes waiting for DCD in open() */ 102 103 /* 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 107 * interrupt handler. 108 */ 109 u_char last_modem_status; /* last MSR read by intr handler */ 110 u_char prev_modem_status; /* last MSR handled by high level */ 111 112 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 */ 120 121 struct lbq obufq; /* head of queue of output buffers */ 122 struct lbq obufs[2]; /* output buffers */ 123 124 bus_space_tag_t bst; 125 bus_space_handle_t bsh; 126 127 Port_t data_port; /* i/o ports */ 128 #ifdef COM_ESP 129 Port_t esp_port; 130 #endif 131 Port_t int_id_port; 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 */ 136 137 struct tty *tp; /* cross reference */ 138 139 /* Initial state. */ 140 struct termios it_in; /* should be in struct tty */ 141 struct termios it_out; 142 143 /* Lock state. */ 144 struct termios lt_in; /* should be in struct tty */ 145 struct termios lt_out; 146 147 bool_t do_timestamp; 148 bool_t do_dcd_timestamp; 149 struct timeval timestamp; 150 struct timeval dcd_timestamp; 151 struct pps_state pps; 152 153 u_long bytes_in; /* statistics */ 154 u_long bytes_out; 155 u_int delta_error_counts[CE_NTYPES]; 156 u_long error_counts[CE_NTYPES]; 157 158 u_long rclk; 159 160 struct resource *irqres; 161 struct resource *ioportres; 162 void *cookie; 163 164 /* 165 * Data area for output buffers. Someday we should build the output 166 * buffer queue without copying data. 167 */ 168 u_char obuf1[256]; 169 u_char obuf2[256]; 170 }; 171 172 #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)) 174 175 extern devclass_t sio_devclass; 176 177 int sioattach (device_t dev, int rid, u_long rclk); 178 int sioprobe (device_t dev, int xrid, u_long rclk); 179