aboutsummaryrefslogtreecommitdiffstats
path: root/sound/oss/gus_card.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/oss/gus_card.c')
-rw-r--r--sound/oss/gus_card.c293
1 files changed, 0 insertions, 293 deletions
diff --git a/sound/oss/gus_card.c b/sound/oss/gus_card.c
deleted file mode 100644
index a3d6ae33fe8b..000000000000
--- a/sound/oss/gus_card.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * sound/oss/gus_card.c
- *
- * Detection routine for the Gravis Ultrasound.
- *
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- *
- * Frank van de Pol : Fixed GUS MAX interrupt handling, enabled simultanious
- * usage of CS4231A codec, GUS wave and MIDI for GUS MAX.
- * Christoph Hellwig: Adapted to module_init/module_exit, simple cleanups.
- *
- * Status:
- * Tested...
- */
-
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-
-#include "sound_config.h"
-
-#include "gus.h"
-#include "gus_hw.h"
-
-irqreturn_t gusintr(int irq, void *dev_id, struct pt_regs *dummy);
-
-int gus_base = 0, gus_irq = 0, gus_dma = 0;
-int gus_no_wave_dma = 0;
-extern int gus_wave_volume;
-extern int gus_pcm_volume;
-extern int have_gus_max;
-int gus_pnp_flag = 0;
-#ifdef CONFIG_SOUND_GUS16
-static int db16; /* Has a Gus16 AD1848 on it */
-#endif
-
-static void __init attach_gus(struct address_info *hw_config)
-{
- gus_wave_init(hw_config);
-
- if (sound_alloc_dma(hw_config->dma, "GUS"))
- printk(KERN_ERR "gus_card.c: Can't allocate DMA channel %d\n", hw_config->dma);
- if (hw_config->dma2 != -1 && hw_config->dma2 != hw_config->dma)
- if (sound_alloc_dma(hw_config->dma2, "GUS(2)"))
- printk(KERN_ERR "gus_card.c: Can't allocate DMA channel %d\n", hw_config->dma2);
- gus_midi_init(hw_config);
- if(request_irq(hw_config->irq, gusintr, 0, "Gravis Ultrasound", hw_config)<0)
- printk(KERN_ERR "gus_card.c: Unable to allocate IRQ %d\n", hw_config->irq);
-
- return;
-}
-
-static int __init probe_gus(struct address_info *hw_config)
-{
- int irq;
- int io_addr;
-
- if (hw_config->card_subtype == 1)
- gus_pnp_flag = 1;
-
- irq = hw_config->irq;
-
- if (hw_config->card_subtype == 0) /* GUS/MAX/ACE */
- if (irq != 3 && irq != 5 && irq != 7 && irq != 9 &&
- irq != 11 && irq != 12 && irq != 15)
- {
- printk(KERN_ERR "GUS: Unsupported IRQ %d\n", irq);
- return 0;
- }
- if (gus_wave_detect(hw_config->io_base))
- return 1;
-
-#ifndef EXCLUDE_GUS_IODETECT
-
- /*
- * Look at the possible base addresses (0x2X0, X=1, 2, 3, 4, 5, 6)
- */
-
- for (io_addr = 0x210; io_addr <= 0x260; io_addr += 0x10) {
- if (io_addr == hw_config->io_base) /* Already tested */
- continue;
- if (gus_wave_detect(io_addr)) {
- hw_config->io_base = io_addr;
- return 1;
- }
- }
-#endif
-
- printk("NO GUS card found !\n");
- return 0;
-}
-
-static void __exit unload_gus(struct address_info *hw_config)
-{
- DDB(printk("unload_gus(%x)\n", hw_config->io_base));
-
- gus_wave_unload(hw_config);
-
- release_region(hw_config->io_base, 16);
- release_region(hw_config->io_base + 0x100, 12); /* 0x10c-> is MAX */
- free_irq(hw_config->irq, hw_config);
-
- sound_free_dma(hw_config->dma);
-
- if (hw_config->dma2 != -1 && hw_config->dma2 != hw_config->dma)
- sound_free_dma(hw_config->dma2);
-}
-
-irqreturn_t gusintr(int irq, void *dev_id, struct pt_regs *dummy)
-{
- unsigned char src;
- extern int gus_timer_enabled;
- int handled = 0;
-
-#ifdef CONFIG_SOUND_GUSMAX
- if (have_gus_max) {
- struct address_info *hw_config = dev_id;
- adintr(irq, (void *)hw_config->slots[1], NULL);
- }
-#endif
-#ifdef CONFIG_SOUND_GUS16
- if (db16) {
- struct address_info *hw_config = dev_id;
- adintr(irq, (void *)hw_config->slots[3], NULL);
- }
-#endif
-
- while (1)
- {
- if (!(src = inb(u_IrqStatus)))
- break;
- handled = 1;
- if (src & DMA_TC_IRQ)
- {
- guswave_dma_irq();
- }
- if (src & (MIDI_TX_IRQ | MIDI_RX_IRQ))
- {
- gus_midi_interrupt(0);
- }
- if (src & (GF1_TIMER1_IRQ | GF1_TIMER2_IRQ))
- {
- if (gus_timer_enabled)
- sound_timer_interrupt();
- gus_write8(0x45, 0); /* Ack IRQ */
- gus_timer_command(4, 0x80); /* Reset IRQ flags */
- }
- if (src & (WAVETABLE_IRQ | ENVELOPE_IRQ))
- gus_voice_irq();
- }
- return IRQ_RETVAL(handled);
-}
-
-/*
- * Some extra code for the 16 bit sampling option
- */
-
-#ifdef CONFIG_SOUND_GUS16
-
-static int __init init_gus_db16(struct address_info *hw_config)
-{
- struct resource *ports;
-
- ports = request_region(hw_config->io_base, 4, "ad1848");
- if (!ports)
- return 0;
-
- if (!ad1848_detect(ports, NULL, hw_config->osp)) {
- release_region(hw_config->io_base, 4);
- return 0;
- }
-
- gus_pcm_volume = 100;
- gus_wave_volume = 90;
-
- hw_config->slots[3] = ad1848_init("GUS 16 bit sampling", ports,
- hw_config->irq,
- hw_config->dma,
- hw_config->dma, 0,
- hw_config->osp,
- THIS_MODULE);
- return 1;
-}
-
-static void __exit unload_gus_db16(struct address_info *hw_config)
-{
-
- ad1848_unload(hw_config->io_base,
- hw_config->irq,
- hw_config->dma,
- hw_config->dma, 0);
- sound_unload_audiodev(hw_config->slots[3]);
-}
-#endif
-
-#ifdef CONFIG_SOUND_GUS16
-static int gus16;
-#endif
-#ifdef CONFIG_SOUND_GUSMAX
-static int no_wave_dma; /* Set if no dma is to be used for the
- wave table (GF1 chip) */
-#endif
-
-
-/*
- * Note DMA2 of -1 has the right meaning in the GUS driver as well
- * as here.
- */
-
-static struct address_info cfg;
-
-static int __initdata io = -1;
-static int __initdata irq = -1;
-static int __initdata dma = -1;
-static int __initdata dma16 = -1; /* Set this for modules that need it */
-static int __initdata type = 0; /* 1 for PnP */
-
-module_param(io, int, 0);
-module_param(irq, int, 0);
-module_param(dma, int, 0);
-module_param(dma16, int, 0);
-module_param(type, int, 0);
-#ifdef CONFIG_SOUND_GUSMAX
-module_param(no_wave_dma, int, 0);
-#endif
-#ifdef CONFIG_SOUND_GUS16
-module_param(db16, int, 0);
-module_param(gus16, int, 0);
-#endif
-MODULE_LICENSE("GPL");
-
-static int __init init_gus(void)
-{
- printk(KERN_INFO "Gravis Ultrasound audio driver Copyright (C) by Hannu Savolainen 1993-1996\n");
-
- cfg.io_base = io;
- cfg.irq = irq;
- cfg.dma = dma;
- cfg.dma2 = dma16;
- cfg.card_subtype = type;
-#ifdef CONFIG_SOUND_GUSMAX
- gus_no_wave_dma = no_wave_dma;
-#endif
-
- if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
- printk(KERN_ERR "I/O, IRQ, and DMA are mandatory\n");
- return -EINVAL;
- }
-
-#ifdef CONFIG_SOUND_GUS16
- if (gus16 && init_gus_db16(&cfg))
- db16 = 1;
-#endif
- if (!probe_gus(&cfg))
- return -ENODEV;
- attach_gus(&cfg);
-
- return 0;
-}
-
-static void __exit cleanup_gus(void)
-{
-#ifdef CONFIG_SOUND_GUS16
- if (db16)
- unload_gus_db16(&cfg);
-#endif
- unload_gus(&cfg);
-}
-
-module_init(init_gus);
-module_exit(cleanup_gus);
-
-#ifndef MODULE
-static int __init setup_gus(char *str)
-{
- /* io, irq, dma, dma2 */
- int ints[5];
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- io = ints[1];
- irq = ints[2];
- dma = ints[3];
- dma16 = ints[4];
-
- return 1;
-}
-
-__setup("gus=", setup_gus);
-#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.