plcomvar.h revision 1.14
1 /* $NetBSD: plcomvar.h,v 1.14 2013/05/01 07:33:24 mlelstv 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 #ifdef 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 struct plcom_instance; 48 49 int plcomcnattach (struct plcom_instance *, int, int, tcflag_t, int); 50 void plcomcndetach (void); 51 52 #ifdef KGDB 53 int plcom_kgdb_attach (struct plcom_instance *, int, int, tcflag_t, int); 54 #endif 55 56 int plcom_is_console (bus_space_tag_t, bus_addr_t, bus_space_handle_t *); 57 58 /* Hardware flag masks */ 59 #define PLCOM_HW_NOIEN 0x01 60 #define PLCOM_HW_FIFO 0x02 61 #define PLCOM_HW_HAYESP 0x04 62 #define PLCOM_HW_FLOW 0x08 63 #define PLCOM_HW_DEV_OK 0x20 64 #define PLCOM_HW_CONSOLE 0x40 65 #define PLCOM_HW_KGDB 0x80 66 #define PLCOM_HW_TXFIFO_DISABLE 0x100 67 68 /* Buffer size for character buffer */ 69 #define PLCOM_RING_SIZE 2048 70 71 struct plcom_instance { 72 u_int pi_type; 73 #define PLCOM_TYPE_PL010 0 74 #define PLCOM_TYPE_PL011 1 75 76 uint32_t pi_flags; /* flags for this PLCOM */ 77 #define PLC_FLAG_USE_DMA 0x0001 78 #define PLC_FLAG_32BIT_ACCESS 0x0002 79 80 void *pi_cookie; 81 82 bus_space_tag_t pi_iot; 83 bus_space_handle_t pi_ioh; 84 bus_addr_t pi_iobase; 85 bus_addr_t pi_size; 86 struct plcom_registers *pi_regs; 87 }; 88 89 struct plcomcons_info { 90 int rate; 91 int frequency; 92 int type; 93 94 tcflag_t cflag; 95 }; 96 97 struct plcom_softc { 98 device_t sc_dev; 99 100 struct tty *sc_tty; 101 void *sc_si; 102 103 struct callout sc_diag_callout; 104 105 int sc_frequency; 106 107 struct plcom_instance sc_pi; 108 109 u_int sc_overflows, 110 sc_floods, 111 sc_errors; 112 113 int sc_hwflags, 114 sc_swflags; 115 u_int sc_fifolen; 116 117 u_int sc_r_hiwat, 118 sc_r_lowat; 119 u_char *volatile sc_rbget, 120 *volatile sc_rbput; 121 volatile u_int sc_rbavail; 122 u_char *sc_rbuf, 123 *sc_ebuf; 124 125 u_char *sc_tba; 126 u_int sc_tbc, 127 sc_heldtbc; 128 129 volatile u_char sc_rx_flags, 130 #define RX_TTY_BLOCKED 0x01 131 #define RX_TTY_OVERFLOWED 0x02 132 #define RX_IBUF_BLOCKED 0x04 133 #define RX_IBUF_OVERFLOWED 0x08 134 #define RX_ANY_BLOCK 0x0f 135 sc_tx_busy, 136 sc_tx_done, 137 sc_tx_stopped, 138 sc_st_check, 139 sc_rx_ready; 140 141 volatile u_char sc_heldchange; 142 volatile u_int sc_cr, sc_ratel, sc_rateh, sc_imsc; 143 volatile u_int sc_msr, sc_msr_delta, sc_msr_mask; 144 volatile u_char sc_mcr, sc_mcr_active, sc_lcr; 145 u_char sc_mcr_dtr, sc_mcr_rts, sc_msr_cts, sc_msr_dcd; 146 u_int sc_fifo; 147 148 /* Support routine to program mcr lines for PL010, if present. */ 149 void (*sc_set_mcr)(void *, int, u_int); 150 void *sc_set_mcr_arg; 151 152 /* power management hooks */ 153 int (*enable) (struct plcom_softc *); 154 void (*disable) (struct plcom_softc *); 155 int enabled; 156 157 /* PPS signal on DCD, with or without inkernel clock disciplining */ 158 u_char sc_ppsmask; /* pps signal mask */ 159 u_char sc_ppsassert; /* pps leading edge */ 160 u_char sc_ppsclear; /* pps trailing edge */ 161 pps_info_t ppsinfo; 162 pps_params_t ppsparam; 163 164 #ifdef RND_COM 165 krndsource_t rnd_source; 166 #endif 167 kmutex_t sc_lock; 168 }; 169 170 #if 0 171 int plcomprobe1 (bus_space_tag_t, bus_space_handle_t); 172 #endif 173 int plcomintr (void *); 174 void plcom_attach_subr (struct plcom_softc *); 175 int plcom_detach (device_t, int); 176 int plcom_activate (device_t, enum devact); 177 178
Indexes created Fri Sep 26 20:09:58 GMT 2025