1 /* $NetBSD: plcomvar.h,v 1.6 2008/01/05 12:40:34 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Christopher G. Demetriou 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "rnd.h" 34 #include "opt_multiprocessor.h" 35 #include "opt_lockdebug.h" 36 #include "opt_plcom.h" 37 #include "opt_kgdb.h" 38 39 #if NRND > 0 && defined(RND_COM) 40 #include <sys/rnd.h> 41 #endif 42 43 #include <sys/callout.h> 44 #include <sys/timepps.h> 45 #include <sys/simplelock.h> 46 47 int plcomcnattach (bus_space_tag_t, bus_addr_t, int, int, tcflag_t, int); 48 void plcomcndetach (void); 49 50 #ifdef KGDB 51 int plcom_kgdb_attach (bus_space_tag_t, bus_addr_t, int, int, tcflag_t); 52 #endif 53 54 int plcom_is_console (bus_space_tag_t, int, bus_space_handle_t *); 55 56 /* Hardware flag masks */ 57 #define PLCOM_HW_NOIEN 0x01 58 #define PLCOM_HW_FIFO 0x02 59 #define PLCOM_HW_HAYESP 0x04 60 #define PLCOM_HW_FLOW 0x08 61 #define PLCOM_HW_DEV_OK 0x20 62 #define PLCOM_HW_CONSOLE 0x40 63 #define PLCOM_HW_KGDB 0x80 64 #define PLCOM_HW_TXFIFO_DISABLE 0x100 65 66 /* Buffer size for character buffer */ 67 #define PLCOM_RING_SIZE 2048 68 69 struct plcom_softc { 70 struct device sc_dev; 71 void *sc_si; 72 struct tty *sc_tty; 73 74 struct callout sc_diag_callout; 75 76 bus_addr_t sc_iounit; 77 int sc_frequency; 78 79 bus_space_tag_t sc_iot; 80 bus_space_handle_t sc_ioh; 81 82 u_int sc_overflows, 83 sc_floods, 84 sc_errors; 85 86 int sc_hwflags, 87 sc_swflags; 88 u_int sc_fifolen; 89 90 u_int sc_r_hiwat, 91 sc_r_lowat; 92 u_char *volatile sc_rbget, 93 *volatile sc_rbput; 94 volatile u_int sc_rbavail; 95 u_char *sc_rbuf, 96 *sc_ebuf; 97 98 u_char *sc_tba; 99 u_int sc_tbc, 100 sc_heldtbc; 101 102 volatile u_char sc_rx_flags, 103 #define RX_TTY_BLOCKED 0x01 104 #define RX_TTY_OVERFLOWED 0x02 105 #define RX_IBUF_BLOCKED 0x04 106 #define RX_IBUF_OVERFLOWED 0x08 107 #define RX_ANY_BLOCK 0x0f 108 sc_tx_busy, 109 sc_tx_done, 110 sc_tx_stopped, 111 sc_st_check, 112 sc_rx_ready; 113 114 volatile u_char sc_heldchange; 115 volatile u_char sc_msr, sc_msr_delta, sc_msr_mask, sc_mcr, 116 sc_mcr_active, sc_lcr, sc_cr, sc_dlbl, sc_dlbh; 117 u_char sc_mcr_dtr, sc_mcr_rts, sc_msr_cts, sc_msr_dcd; 118 u_int sc_fifo; 119 120 /* Support routine to program mcr lines, if present. */ 121 void (*sc_set_mcr)(void *, int, u_int); 122 void *sc_set_mcr_arg; 123 124 /* power management hooks */ 125 int (*enable) (struct plcom_softc *); 126 void (*disable) (struct plcom_softc *); 127 int enabled; 128 129 /* PPS signal on DCD, with or without inkernel clock disciplining */ 130 u_char sc_ppsmask; /* pps signal mask */ 131 u_char sc_ppsassert; /* pps leading edge */ 132 u_char sc_ppsclear; /* pps trailing edge */ 133 pps_info_t ppsinfo; 134 pps_params_t ppsparam; 135 136 #if NRND > 0 && defined(RND_COM) 137 rndsource_element_t rnd_source; 138 #endif 139 struct simplelock sc_lock; 140 }; 141 142 int plcomprobe1 (bus_space_tag_t, bus_space_handle_t); 143 int plcomintr (void *); 144 void plcom_attach_subr (struct plcom_softc *); 145 int plcom_detach (struct device *, int); 146 int plcom_activate (struct device *, enum devact); 147 148