5385b2b98b
- Removed unused method bx_list_c::text_print(). - Fixed default prompt in bx_param_enum_c::text_ask(). - speaker.cc: fixed a typo in ask format.
448 lines
12 KiB
C++
448 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2003 David N. Welton <davidw@dedasys.com>.
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// Copyright (C) 2003-2021 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#define BX_PLUGGABLE
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#include "iodev.h"
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#include "speaker.h"
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#if BX_SUPPORT_SOUNDLOW
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#include "sound/soundlow.h"
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#include "sound/soundmod.h"
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#endif
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#ifdef __linux__
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#include <unistd.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <linux/kd.h>
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#endif
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#define LOG_THIS theSpeaker->
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bx_speaker_c *theSpeaker= NULL;
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#if defined(__linux__) || defined(WIN32)
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#define BX_SYSTEM_SPEAKER
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#endif
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enum {
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BX_SPK_MODE_NONE,
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#if BX_SUPPORT_SOUNDLOW
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BX_SPK_MODE_SOUND,
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#endif
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#ifdef BX_SYSTEM_SPEAKER
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BX_SPK_MODE_SYSTEM,
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#endif
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BX_SPK_MODE_GUI
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};
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static const char *speaker_mode_list[] = {
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"none",
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#if BX_SUPPORT_SOUNDLOW
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"sound",
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#endif
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#ifdef BX_SYSTEM_SPEAKER
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"system",
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#endif
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"gui",
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NULL
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};
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#if BX_SUPPORT_SOUNDLOW
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BX_MUTEX(beep_mutex);
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Bit32u beep_callback(void *dev, Bit16u rate, Bit8u *buffer, Bit32u len);
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#endif
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// builtin configuration handling functions
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void speaker_init_options(void)
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{
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bx_list_c *deplist;
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bx_list_c *sound = (bx_list_c*)SIM->get_param("sound");
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bx_list_c *menu = new bx_list_c(sound, "speaker", "PC speaker output configuration");
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menu->set_options(menu->SERIES_ASK);
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bx_param_bool_c *enabled = new bx_param_bool_c(menu, "enabled", "Enable speaker output",
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"Enables the PC speaker output", 1);
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bx_param_enum_c *mode = new bx_param_enum_c(menu, "mode", "Speaker output mode",
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"The mode can be one these: 'none', 'sound', 'system' or 'gui'",
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speaker_mode_list, 1, BX_SPK_MODE_NONE);
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mode->set_ask_format("Select speaker output mode [%s] ");
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#if BX_SUPPORT_SOUNDLOW
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bx_param_num_c *volume = new bx_param_num_c(menu, "volume", "Speaker volume",
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"Set the PC speaker volume", 0, 15, 15);
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#endif
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deplist = new bx_list_c(NULL);
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deplist->add(mode);
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enabled->set_dependent_list(deplist);
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#if BX_SUPPORT_SOUNDLOW
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deplist = new bx_list_c(NULL);
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deplist->add(volume);
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mode->set_dependent_list(deplist, 0);
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mode->set_dependent_bitmap(BX_SPK_MODE_SOUND, 1);
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#endif
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}
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Bit32s speaker_options_parser(const char *context, int num_params, char *params[])
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{
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if (!strcmp(params[0], "speaker")) {
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bx_list_c *base = (bx_list_c*) SIM->get_param(BXPN_SOUND_SPEAKER);
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for (int i=1; i<num_params; i++) {
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if (SIM->parse_param_from_list(context, params[i], base) < 0) {
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BX_ERROR(("%s: unknown parameter for speaker ignored.", context));
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}
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}
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} else {
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BX_PANIC(("%s: unknown directive '%s'", context, params[0]));
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}
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return 0;
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}
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Bit32s speaker_options_save(FILE *fp)
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{
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return SIM->write_param_list(fp, (bx_list_c*) SIM->get_param(BXPN_SOUND_SPEAKER), NULL, 0);
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}
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// device plugin entry point
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PLUGIN_ENTRY_FOR_MODULE(speaker)
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{
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if (mode == PLUGIN_INIT) {
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theSpeaker = new bx_speaker_c();
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bx_devices.pluginSpeaker = theSpeaker;
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BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theSpeaker, BX_PLUGIN_SPEAKER);
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// add new configuration parameters for the config interface
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speaker_init_options();
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// register add-on options for bochsrc and command line
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SIM->register_addon_option("speaker", speaker_options_parser, speaker_options_save);
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bx_devices.add_sound_device();
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} else if (mode == PLUGIN_FINI) {
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bx_devices.pluginSpeaker = &bx_devices.stubSpeaker;
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delete theSpeaker;
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SIM->unregister_addon_option("speaker");
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((bx_list_c*)SIM->get_param("sound"))->remove("speaker");
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bx_devices.remove_sound_device();
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} else if (mode == PLUGIN_PROBE) {
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return (int)PLUGTYPE_OPTIONAL;
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}
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return(0); // Success
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}
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// the device object
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bx_speaker_c::bx_speaker_c()
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{
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put("speaker", "PCSPK");
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beep_frequency = 0.0; // Off
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#ifdef __linux__
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consolefd = -1;
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#endif
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#if BX_SUPPORT_SOUNDLOW
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waveout = NULL;
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#endif
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}
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bx_speaker_c::~bx_speaker_c()
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{
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beep_off();
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switch (output_mode) {
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#if BX_SUPPORT_SOUNDLOW
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case BX_SPK_MODE_SOUND:
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beep_active = 0;
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if (waveout != NULL) {
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if (beep_callback_id >= 0) {
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waveout->unregister_wave_callback(beep_callback_id);
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}
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}
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break;
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#endif
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#ifdef __linux__
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case BX_SPK_MODE_SYSTEM:
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if (consolefd >= 0) {
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close(consolefd);
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}
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break;
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#endif
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}
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BX_DEBUG(("Exit"));
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}
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void bx_speaker_c::init(void)
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{
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// Read in values from config interface
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bx_list_c *base = (bx_list_c*) SIM->get_param(BXPN_SOUND_SPEAKER);
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// Check if the device is disabled or not configured
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if (!SIM->get_param_bool("enabled", base)->get()) {
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BX_INFO(("PC speaker output disabled"));
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// mark unused plugin for removal
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((bx_param_bool_c*)((bx_list_c*)SIM->get_param(BXPN_PLUGIN_CTRL))->get_by_name("speaker"))->set(0);
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return;
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}
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output_mode = SIM->get_param_enum("mode", base)->get();
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switch (output_mode) {
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#if BX_SUPPORT_SOUNDLOW
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case BX_SPK_MODE_SOUND:
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waveout = DEV_sound_get_waveout(0);
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if (waveout != NULL) {
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beep_active = 0;
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beep_volume = SIM->get_param_num("volume", base)->get();
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#if BX_HAVE_REALTIME_USEC
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dsp_active = 0;
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dsp_start_usec = bx_get_realtime64_usec();
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dsp_cb_usec = 0;
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dsp_count = 0;
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#endif
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BX_INIT_MUTEX(beep_mutex);
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beep_callback_id = waveout->register_wave_callback(theSpeaker, beep_callback);
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BX_INFO(("Using lowlevel sound support for output"));
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} else {
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BX_ERROR(("Failed to use lowlevel sound support for output"));
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output_mode = BX_SPK_MODE_NONE;
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}
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break;
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#endif
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#ifdef BX_SYSTEM_SPEAKER
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case BX_SPK_MODE_SYSTEM:
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#ifdef __linux__
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consolefd = open("/dev/console", O_WRONLY);
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if (consolefd != -1) {
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BX_INFO(("Using /dev/console for output"));
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} else {
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BX_ERROR(("Failed to open /dev/console: %s", strerror(errno)));
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BX_ERROR(("Deactivating beep on console"));
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output_mode = BX_SPK_MODE_NONE;
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}
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#elif defined(WIN32)
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BX_INFO(("Using system beep for output"));
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#endif
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break;
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#endif
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case BX_SPK_MODE_GUI:
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BX_INFO(("Forwarding beep to gui"));
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break;
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}
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}
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void bx_speaker_c::reset(unsigned type)
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{
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beep_off();
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}
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#if BX_SUPPORT_SOUNDLOW
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Bit32u bx_speaker_c::beep_generator(Bit16u rate, Bit8u *buffer, Bit32u len)
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{
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Bit32u j = 0, ret = 0;
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Bit16u beep_samples;
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static Bit16u beep_pos = 0;
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BX_LOCK(beep_mutex);
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if (!beep_active) {
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beep_samples = 0;
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} else {
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beep_samples = (Bit32u)((float)rate / beep_frequency / 2);
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}
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if (beep_samples == 0) {
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#if BX_SUPPORT_SOUNDLOW && BX_HAVE_REALTIME_USEC
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if (dsp_active) {
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ret = dsp_generator(rate, buffer, len);
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}
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#endif
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BX_UNLOCK(beep_mutex);
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return ret;
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}
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do {
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buffer[j++] = (Bit8u)beep_level;
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buffer[j++] = (Bit8u)(beep_level >> 8);
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buffer[j++] = (Bit8u)beep_level;
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buffer[j++] = (Bit8u)(beep_level >> 8);
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if ((++beep_pos % beep_samples) == 0) {
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beep_level *= -1;
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beep_pos = 0;
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beep_samples = (Bit32u)((float)rate / beep_frequency / 2);
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if (beep_samples == 0) break;
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}
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} while (j < len);
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BX_UNLOCK(beep_mutex);
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return len;
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}
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#if BX_SUPPORT_SOUNDLOW && BX_HAVE_REALTIME_USEC
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Bit32u bx_speaker_c::dsp_generator(Bit16u rate, Bit8u *buffer, Bit32u len)
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{
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Bit32u i = 0, j = 0;
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double tmp_dsp_usec, step_usec;
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Bit64u new_dsp_cb_usec = bx_get_realtime64_usec() - dsp_start_usec;
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if (dsp_cb_usec == 0) {
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dsp_cb_usec = new_dsp_cb_usec - 25000;
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}
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tmp_dsp_usec = (double)dsp_cb_usec;
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step_usec = 1000000.0 / (double)rate;
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do {
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if ((i < dsp_count) && (dsp_event_buffer[i] < (Bit64u)tmp_dsp_usec)) {
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beep_level *= -1;
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i++;
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}
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buffer[j++] = (Bit8u)beep_level;
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buffer[j++] = (Bit8u)(beep_level >> 8);
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buffer[j++] = (Bit8u)beep_level;
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buffer[j++] = (Bit8u)(beep_level >> 8);
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tmp_dsp_usec += step_usec;
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} while (j < len);
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dsp_active = 0;
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dsp_count = 0;
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dsp_cb_usec = new_dsp_cb_usec;
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return len;
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}
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#endif
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Bit32u beep_callback(void *dev, Bit16u rate, Bit8u *buffer, Bit32u len)
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{
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return ((bx_speaker_c*)dev)->beep_generator(rate, buffer, len);
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}
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#endif
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void bx_speaker_c::beep_on(float frequency)
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{
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#if defined(WIN32)
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if ((output_mode == BX_SPK_MODE_SYSTEM) && (beep_frequency != 0.0)) {
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beep_off();
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}
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#endif
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switch (output_mode) {
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#if BX_SUPPORT_SOUNDLOW
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case BX_SPK_MODE_SOUND:
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if ((waveout != NULL) && (frequency != beep_frequency)) {
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BX_LOCK(beep_mutex);
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beep_frequency = frequency;
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if (!beep_active) {
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beep_level = (Bit16s)(0x4000 * (beep_volume / 15.0f));
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}
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beep_active = 1;
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BX_UNLOCK(beep_mutex);
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}
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break;
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#endif
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#ifdef BX_SYSTEM_SPEAKER
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case BX_SPK_MODE_SYSTEM:
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#ifdef __linux__
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if (consolefd != -1) {
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BX_DEBUG(("PC speaker on with frequency %f", frequency));
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ioctl(consolefd, KIOCSOUND, (int)(clock_tick_rate/frequency));
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}
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#elif defined(WIN32)
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usec_start = bx_pc_system.time_usec();
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#endif
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break;
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#endif
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case BX_SPK_MODE_GUI:
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// give the gui a chance to signal beep on
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bx_gui->beep_on(frequency);
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break;
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}
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beep_frequency = frequency;
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}
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#if defined(WIN32)
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static struct {
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DWORD frequency;
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DWORD msec;
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} beep_info;
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DWORD WINAPI BeepThread(LPVOID)
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{
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static BOOL threadActive = FALSE;
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while (threadActive) Sleep(10);
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threadActive = TRUE;
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Beep(beep_info.frequency, beep_info.msec);
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threadActive = FALSE;
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return 0;
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}
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#endif
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void bx_speaker_c::beep_off()
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{
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switch (output_mode) {
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#if BX_SUPPORT_SOUNDLOW
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case BX_SPK_MODE_SOUND:
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if (waveout != NULL) {
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BX_LOCK(beep_mutex);
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beep_active = 0;
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beep_frequency = 0.0;
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BX_UNLOCK(beep_mutex);
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}
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break;
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#endif
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#ifdef BX_SYSTEM_SPEAKER
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case BX_SPK_MODE_SYSTEM:
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if (beep_frequency != 0.0) {
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#ifdef __linux__
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if (consolefd != -1) {
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ioctl(consolefd, KIOCSOUND, 0);
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}
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#elif defined(WIN32)
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// FIXME: sound should start at beep_on() and end here
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DWORD threadID;
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beep_info.msec = (DWORD)((bx_pc_system.time_usec() - usec_start) / 1000);
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beep_info.frequency = (DWORD)beep_frequency;
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CloseHandle(CreateThread(NULL, 0, BeepThread, NULL, 0, &threadID));
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#endif
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}
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break;
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#endif
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case BX_SPK_MODE_GUI:
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// give the gui a chance to signal beep off
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bx_gui->beep_off();
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break;
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}
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beep_frequency = 0.0;
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}
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void bx_speaker_c::set_line(bool level)
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{
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#if BX_SUPPORT_SOUNDLOW && BX_HAVE_REALTIME_USEC
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if (output_mode == BX_SPK_MODE_SOUND) {
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BX_LOCK(beep_mutex);
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Bit64u timestamp = bx_get_realtime64_usec() - dsp_start_usec;
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dsp_active = 1;
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if (dsp_count < 500) {
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dsp_event_buffer[dsp_count++] = timestamp;
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} else {
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BX_ERROR(("DSP event buffer full"));
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}
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BX_UNLOCK(beep_mutex);
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}
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#else
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BX_DEBUG(("setting speaker line to %d", level));
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#endif
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}
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