1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1999-2000 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _SYS_BBC_BEEP_H 28*0Sstevel@tonic-gate #define _SYS_BBC_BEEP_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate /* 37*0Sstevel@tonic-gate * bbc_beep.h : BBC beep driver's header file. 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* Keyboard Beep Control Register values */ 41*0Sstevel@tonic-gate #define BBC_BEEP_ON 0x01 42*0Sstevel@tonic-gate #define BBC_BEEP_OFF 0x00 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate /* 45*0Sstevel@tonic-gate * Keyboard Beep Counter Register value : 46*0Sstevel@tonic-gate * The most significant of [18..10] selects the bit of 47*0Sstevel@tonic-gate * the BBC free running counter (updated on half the system 48*0Sstevel@tonic-gate * clock) that is used to generate the audio signal. So, bit[10] 49*0Sstevel@tonic-gate * generates a signal at 1/(2^12) the system frequency, and 50*0Sstevel@tonic-gate * bit[18], at 1/(2^20). So if s = system frequency(in MHz), 51*0Sstevel@tonic-gate * it can generate frequencies in the range (s >> 10) Hz to 52*0Sstevel@tonic-gate * (s >> 2) Hz. 53*0Sstevel@tonic-gate */ 54*0Sstevel@tonic-gate #define BBC_BEEP_MIN_SHIFT 20 55*0Sstevel@tonic-gate #define BBC_BEEP_MAX_SHIFT 12 56*0Sstevel@tonic-gate #define BBC_BEEP_MSBIT 18 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate typedef volatile struct bbc_beep_regs { 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate /* Beep ON/OFF register */ 61*0Sstevel@tonic-gate uint8_t bbc_beep_control; 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate /* Reserved */ 64*0Sstevel@tonic-gate uint8_t reserved; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* Register to set the frequency */ 67*0Sstevel@tonic-gate uint8_t bbc_beep_counter[4]; 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate } bbc_beep_regs_t; 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate /* 72*0Sstevel@tonic-gate * Beep driver state structure 73*0Sstevel@tonic-gate */ 74*0Sstevel@tonic-gate typedef struct bbc_beep_state { 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate /* Dip of bbc_beep device */ 77*0Sstevel@tonic-gate dev_info_t *bbc_beep_dip; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate /* Beep registers */ 80*0Sstevel@tonic-gate bbc_beep_regs_t *bbc_beep_regsp; 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate /* Register handle */ 83*0Sstevel@tonic-gate ddi_acc_handle_t bbc_beep_regs_handle; 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate /* If beeper is active or not */ 86*0Sstevel@tonic-gate int bbc_beep_mode; 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate } bbc_beep_state_t; 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate #define BEEP_WRITE_CTRL_REG(val) ddi_put8(bbc_beeptr->bbc_beep_regs_handle, \ 91*0Sstevel@tonic-gate ((uint8_t *)&bbc_beeptr->bbc_beep_regsp->bbc_beep_control), \ 92*0Sstevel@tonic-gate ((int8_t)(val))) 93*0Sstevel@tonic-gate #define BEEP_WRITE_COUNTER_REG(no, val) \ 94*0Sstevel@tonic-gate ddi_put8(bbc_beeptr->bbc_beep_regs_handle, \ 95*0Sstevel@tonic-gate ((uint8_t *)&bbc_beeptr->bbc_beep_regsp->bbc_beep_counter[no]), \ 96*0Sstevel@tonic-gate ((int8_t)(val))) 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate #define BEEP_UNIT(dev) (getminor((dev))) 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate #ifdef __cplusplus 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate #endif 103*0Sstevel@tonic-gate 104*0Sstevel@tonic-gate #endif /* _SYS_BBC_BEEP_H */ 105