ae28ee13b4
Amancio. There is some SoundSource support here that is primitive and probably doesn't work, but I'll let the two submitters let me know how my integration of that was since I don't have this card to test. I've only tested this on my GUS MAX since it's all I have. This all probably needs to be re-done anyway since we're widely variant from the original VOXWARE source in the current layout. Submitted by: Amancio Hasty and Jim Lowe Obtained from: Hannu Savolainen
198 lines
4.5 KiB
C
198 lines
4.5 KiB
C
/*
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* sound/gus_card.c
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*
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* Detection routine for the Gravis Ultrasound.
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*
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* Copyright by Hannu Savolainen 1993
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer. 2.
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "sound_config.h"
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#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_GUS)
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#include "gus_hw.h"
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int gus_base, gus_irq, gus_dma;
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extern int gus_wave_volume;
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extern int gus_pcm_volume;
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extern int have_gus_max;
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long
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attach_gus_card (long mem_start, struct address_info *hw_config)
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{
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int io_addr;
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snd_set_irq_handler (hw_config->irq, gusintr, "Gravis Ultrasound");
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if (gus_wave_detect (hw_config->io_base)) /*
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* Try first the default
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*/
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{
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mem_start = gus_wave_init (mem_start, hw_config->irq, hw_config->dma,
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hw_config->dma_read);
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#ifndef EXCLUDE_MIDI
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mem_start = gus_midi_init (mem_start);
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#endif
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#ifndef EXCLUDE_SEQUENCER
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sound_timer_init (hw_config->io_base + 8);
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#endif
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return mem_start;
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}
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#ifndef EXCLUDE_GUS_IODETECT
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/*
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* Look at the possible base addresses (0x2X0, X=1, 2, 3, 4, 5, 6)
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*/
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for (io_addr = 0x210; io_addr <= 0x260; io_addr += 0x10)
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if (io_addr != hw_config->io_base) /*
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* Already tested
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*/
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if (gus_wave_detect (io_addr))
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{
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printk (" WARNING! GUS found at %x, config was %x ", io_addr, hw_config->io_base);
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mem_start = gus_wave_init (mem_start, hw_config->irq, hw_config->dma,
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hw_config->dma_read);
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#ifndef EXCLUDE_MIDI
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mem_start = gus_midi_init (mem_start);
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#endif
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#ifndef EXCLUDE_SEQUENCER
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sound_timer_init (io_addr + 8);
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#endif
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return mem_start;
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}
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#endif
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return mem_start; /*
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* Not detected
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*/
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}
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int
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probe_gus (struct address_info *hw_config)
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{
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int io_addr;
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if (gus_wave_detect (hw_config->io_base))
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return 1;
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#ifndef EXCLUDE_GUS_IODETECT
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/*
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* Look at the possible base addresses (0x2X0, X=1, 2, 3, 4, 5, 6)
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*/
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for (io_addr = 0x210; io_addr <= 0x260; io_addr += 0x10)
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if (io_addr != hw_config->io_base) /*
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* Already tested
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*/
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if (gus_wave_detect (io_addr))
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return 1;
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#endif
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return 0;
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}
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void
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gusintr (INT_HANDLER_PARMS (irq, dummy))
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{
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unsigned char src;
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#ifdef linux
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sti ();
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#endif
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#ifndef EXCLUDE_GUSMAX
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if (have_gus_max)
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# if defined(__FreeBSD__)
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ad1848_interrupt (INT_HANDLER_CALL (gus_irq));
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# else
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ad1848_interrupt (INT_HANDLER_CALL (irq));
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# endif
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#endif
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while (1)
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{
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if (!(src = INB (u_IrqStatus)))
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return;
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if (src & DMA_TC_IRQ)
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{
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guswave_dma_irq ();
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}
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if (src & (MIDI_TX_IRQ | MIDI_RX_IRQ))
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{
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#ifndef EXCLUDE_MIDI
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gus_midi_interrupt (0);
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#endif
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}
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if (src & (GF1_TIMER1_IRQ | GF1_TIMER2_IRQ))
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{
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#ifndef EXCLUDE_SEQUENCER
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sound_timer_interrupt ();
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#else
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gus_write8 (0x45, 0); /* Stop timers */
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#endif
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}
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if (src & (WAVETABLE_IRQ | ENVELOPE_IRQ))
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{
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gus_voice_irq ();
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}
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}
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}
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#endif
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/*
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* Some extra code for the 16 bit sampling option
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*/
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#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_GUS16)
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int
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probe_gus_db16 (struct address_info *hw_config)
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{
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return ad1848_detect (hw_config->io_base);
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}
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long
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attach_gus_db16 (long mem_start, struct address_info *hw_config)
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{
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gus_pcm_volume = 100;
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gus_wave_volume = 90;
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ad1848_init ("GUS 16 bit sampling", hw_config->io_base,
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hw_config->irq,
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hw_config->dma,
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hw_config->dma);
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return mem_start;
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}
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#endif
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