/* $NetBSD: amd7930intr.s,v 1.23 2010/12/20 00:25:43 matt Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)bsd_audiointr.s 8.1 (Berkeley) 6/11/93 */ /* * Copyright (c) 1995 Rolf Grossmann. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)bsd_audiointr.s 8.1 (Berkeley) 6/11/93 */ #ifndef AUDIO_C_HANDLER #include "assym.h" #include #include #include #include #include #include #define AUDIO_SET_SWINTR_4C \ sethi %hi(INTRREG_VA), %l5; \ ldub [%l5 + %lo(INTRREG_VA)], %l6; \ or %l6, IE_L4, %l6; \ stb %l6, [%l5 + %lo(INTRREG_VA)] ! raise(0,IPL_SOFTAUDIO) ! NOTE: CPU#0 #define AUDIO_SET_SWINTR_4M \ sethi %hi(PINTR_SINTRLEV(IPL_SOFTAUDIO)), %l5;\ set ICR_PI_SET, %l6; \ st %l5, [%l6] /* set software interrupt */ #if (defined(SUN4) || defined(SUN4C)) && !defined(SUN4M) #define AUDIO_SET_SWINTR AUDIO_SET_SWINTR_4C #elif !(defined(SUN4) || defined(SUN4C)) && defined(SUN4M) #define AUDIO_SET_SWINTR AUDIO_SET_SWINTR_4M #else #define AUDIO_SET_SWINTR \ sethi %hi(_C_LABEL(cputyp)), %l5; \ ld [%l5 + %lo(_C_LABEL(cputyp))], %l5; \ cmp %l5, CPU_SUN4M; \ be 8f; \ AUDIO_SET_SWINTR_4C; \ ba,a 9f; \ 8: \ AUDIO_SET_SWINTR_4M; \ 9: #endif #define R_amd %l2 #define R_data %l3 #define R_end %l4 .seg "data" .align 8 savepc: .word 0 .seg "text" .align 4 _ENTRY(_C_LABEL(amd7930_trap)) sethi %hi(savepc), %l7 st %l2, [%l7 + %lo(savepc)] ! tally interrupt (curcpu()->cpu_data.cpu_nintr++) INCR64X(CPUINFO_VA + CPUINFO_NINTR, %l4, %l5, %l7) sethi %hi(_C_LABEL(auiop)), %l7 ld [%l7 + %lo(_C_LABEL(auiop))], %l7 ! tally interrupt (au_intrcnt.ev_count++) ldd [%l7 + AU_EVCNT], %l4 inccc %l5 addx %l4, 0, %l4 std %l4, [%l7 + AU_EVCNT] ld [%l7 + AU_BH], R_amd ldub [R_amd + AM7930_DREG_IR], %g0 ! clear interrupt ! receive incoming data ld [%l7 + AU_RDATA], R_data ld [%l7 + AU_REND], R_end cmp R_data, 0 ! if (d && d <= e) be 1f cmp R_data, R_end bgu 1f nop ldub [R_amd + AM7930_DREG_BBRB], %l6 ! *d = amd->bbrb stb %l6, [R_data] cmp R_data, R_end inc R_data ! au->au_rdata++ bne 1f ! if (d == e) st R_data, [%l7 + AU_RDATA] AUDIO_SET_SWINTR 1: ! write outgoing data ld [%l7 + AU_PDATA], R_data ld [%l7 + AU_PEND], R_end cmp R_data, 0 ! if (d && d <= e) be 2f cmp R_data, R_end bgu 2f nop ldub [R_data], %l6 ! amd->bbtb = *d stb %l6, [R_amd + AM7930_DREG_BBTB] cmp R_data, R_end inc R_data ! au->au_pdata++ bne 2f ! if (d == e) st R_data, [%l7 + AU_PDATA] AUDIO_SET_SWINTR 2: /* * Restore psr -- note: psr delay honored by pc restore loads. */ mov %l0, %psr sethi %hi(savepc), %l7 ld [%l7 + %lo(savepc)], %l2 jmp %l1 rett %l2 #endif /* !AUDIO_C_HANDLER */