1 /* $NetBSD: epcomvar.h,v 1.9 2021/11/21 08:44:28 skrll Exp $ */ 2 /*- 3 * Copyright (c) 2004 Jesse Off 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 * 14 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28 #ifndef _EPCOMVAR_H_ 29 #define _EPCOMVAR_H_ 30 31 #ifdef RND_COM 32 #include <sys/rndsource.h> 33 #endif 34 35 /* Hardware flag masks */ 36 #define COM_HW_NOIEN 0x01 37 #define COM_HW_DEV_OK 0x20 38 #define COM_HW_CONSOLE 0x40 39 #define COM_HW_KGDB 0x80 40 41 #define RX_TTY_BLOCKED 0x01 42 #define RX_TTY_OVERFLOWED 0x02 43 #define RX_IBUF_BLOCKED 0x04 44 #define RX_IBUF_OVERFLOWED 0x08 45 #define RX_ANY_BLOCK 0x0f 46 47 #define EPCOM_RING_SIZE 2048 48 49 struct epcom_softc { 50 device_t sc_dev; 51 bus_addr_t sc_hwbase; 52 bus_space_tag_t sc_iot; 53 bus_space_handle_t sc_ioh; 54 55 void *sc_si; 56 57 struct tty *sc_tty; 58 59 u_char *sc_rbuf, *sc_ebuf; 60 61 u_char *sc_tba; 62 u_int sc_tbc; 63 64 u_char *volatile sc_rbget, 65 *volatile sc_rbput; 66 volatile u_int sc_rbavail; 67 68 /* status flags */ 69 int sc_hwflags, sc_swflags; 70 71 volatile u_int sc_rx_flags, 72 sc_tx_busy, 73 sc_tx_done, 74 sc_tx_stopped, 75 sc_st_check, 76 sc_rx_ready; 77 78 /* control registers */ 79 u_int sc_lcrlo; 80 u_int sc_lcrmid; 81 u_int sc_lcrhi; 82 u_int sc_ctrl; 83 84 /* power management hooks */ 85 int (*enable)(struct epcom_softc *); 86 int (*disable)(struct epcom_softc *); 87 88 int enabled; 89 #ifdef RND_COM 90 krndsource_t rnd_source; 91 #endif 92 }; 93 94 void epcom_attach_subr(struct epcom_softc *); 95 96 int epcomintr(void* arg); 97 int epcomcnattach(bus_space_tag_t, bus_addr_t, bus_space_handle_t, 98 int, tcflag_t); 99 int epcom_kgdb_attach(bus_space_tag_t, bus_addr_t, int, tcflag_t); 100 101 #endif /* _EPCOMVAR_H_ */ 102