patch-2.1.126 linux/drivers/sound/opl3sa2.c

• Lines: 242
• Date: Fri Oct 9 11:56:59 1998
• Orig file: v2.1.125/linux/drivers/sound/opl3sa2.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.125/linux/drivers/sound/opl3sa2.c linux/drivers/sound/opl3sa2.c
@@ -0,0 +1,241 @@
+/*
+ * sound/opl3sa2.c
+ *
+ * A low level driver for Yamaha OPL3-SA[2,3,x] based cards.
+ *
+ * Scott Murray, Jun 14, 1998
+ *
+ */
+
+/* Based on the CS4232 driver:
+ *
+ * Copyright (C) by Hannu Savolainen 1993-1997
+ *
+ * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
+ * Version 2 (June 1991). See the "COPYING" file distributed with this software
+ * for more info.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include "sound_config.h"
+#include "soundmodule.h"
+
+#ifdef CONFIG_OPL3SA2
+
+int probe_opl3sa2_mpu(struct address_info *hw_config)
+{
+#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI)
+	return probe_mpu401(hw_config);
+#else
+	return 0;
+#endif
+}
+
+
+void attach_opl3sa2_mpu(struct address_info *hw_config)
+{
+#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI)
+	attach_mpu401(hw_config);
+#endif
+}
+
+
+void unload_opl3sa2_mpu(struct address_info *hw_config)
+{
+#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI)
+	unload_mpu401(hw_config);
+#endif
+}
+
+
+int probe_opl3sa2_mss(struct address_info *hw_config)
+{
+	return probe_ms_sound(hw_config);
+}
+
+
+void attach_opl3sa2_mss(struct address_info *hw_config)
+{
+   	printk(KERN_INFO "opl3sa2.c: trying to init WSS\n");   
+   
+	attach_ms_sound(hw_config);
+
+   	/* request_region(hw_config->io_base, 4, "Yamaha 7xx WSS Config"); */
+   
+	if (hw_config->slots[0] != -1 &&
+	    audio_devs[hw_config->slots[0]]->mixer_dev != -1)
+	{
+  		AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_CD);
+  		AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_SYNTH);
+	        /* GSM! test the following: */
+                AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_LINE);
+	}
+}
+
+
+void unload_opl3sa2_mss(struct address_info *hw_config)
+{
+        int mixer;
+
+        /* Find mixer */
+	mixer = audio_devs[hw_config->slots[0]]->mixer_dev;
+
+        /* Unload MSS audio codec */
+	unload_ms_sound(hw_config);
+
+	sound_unload_audiodev(hw_config->slots[0]);
+
+        /* Unload mixer if there */
+	if(mixer >= 0)
+	{
+		sound_unload_mixerdev(mixer);
+	}
+
+        /* Release MSS config ports */
+	release_region(hw_config->io_base, 4);
+}
+
+
+int probe_opl3sa2(struct address_info *hw_config)
+{
+	/*
+	 * Verify that the I/O port range is free.
+	 */
+
+	printk(KERN_INFO "opl3sa2.c: Control using I/O port 0x%03x\n", hw_config->io_base);
+
+	if (check_region(hw_config->io_base, 2))
+	{
+	    printk(KERN_ERR "opl3sa2.c: Control I/O port 0x%03x not free\n", hw_config->io_base);
+	    return 0;
+	}
+
+	/* GSM!: Add some kind of other test here... */
+
+	return 1;
+}
+
+
+void attach_opl3sa2(struct address_info *hw_config)
+{
+   	printk(KERN_INFO "opl3sa2.c: trying to init!\n");   
+   
+   	request_region(hw_config->io_base, 2, "Yamaha 7xx Control");
+
+	/* GSM! Mixer stuff should go here... */
+}   
+
+
+void unload_opl3sa2(struct address_info *hw_config)
+{
+        /* Release control ports */
+	release_region(hw_config->io_base, 2);
+
+	/* GSM! Mixer stuff should go here... */
+}
+
+
+#ifdef MODULE
+
+int io      = -1;
+int mss_io  = -1;
+int mpu_io  = -1;
+int irq     = -1;
+int dma     = -1;
+int dma2    = -1;
+
+MODULE_PARM(io,"i");
+MODULE_PARM(mss_io,"i");
+MODULE_PARM(mpu_io,"i");
+MODULE_PARM(irq,"i");
+MODULE_PARM(dma,"i");
+MODULE_PARM(dma2,"i");
+
+EXPORT_NO_SYMBOLS;
+
+struct address_info cfg;
+struct address_info mss_cfg;
+struct address_info mpu_cfg;
+
+/*
+ *	Install a OPL3SA2 based card. Need to have ad1848 and mpu401
+ *	loaded ready.
+ */
+int init_module(void)
+{
+        int i;
+
+	if (io == -1 || irq == -1 || dma == -1 || dma2 == -1 || mss_io == -1)
+	{
+		printk(KERN_ERR "opl3sa2: io, mss_io, irq, dma, and dma2 must be set.\n");
+		return -EINVAL;
+	}
+   
+        /* Our own config: */
+        cfg.io_base = io;
+	cfg.irq     = irq;
+	cfg.dma     = dma;
+	cfg.dma2    = dma2;
+
+        /* The MSS config: */
+	mss_cfg.io_base      = mss_io;
+	mss_cfg.irq          = irq;
+	mss_cfg.dma          = dma;
+	mss_cfg.dma2         = dma2;
+	mss_cfg.card_subtype = 1;      /* No IRQ or DMA setup */
+
+	/* Call me paranoid: */
+	for(i = 0; i < 6; i++)
+	{
+	    cfg.slots[i] = mss_cfg.slots[i] = mpu_cfg.slots[i] = -1;
+	}
+
+	if (probe_opl3sa2(&cfg) == 0)
+	{
+	    return -ENODEV;
+	}
+	attach_opl3sa2(&cfg);
+
+	if (probe_opl3sa2_mss(&mss_cfg) == 0)
+	{
+	    return -ENODEV;
+	}
+	attach_opl3sa2_mss(&mss_cfg);
+
+#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI)
+	if(mpu_io != -1)
+	{
+            /* MPU config: */
+	    mpu_cfg.io_base       = mpu_io;
+	    mpu_cfg.irq           = irq;
+	    mpu_cfg.dma           = dma;
+	    mpu_cfg.always_detect = 1;  /* It's there, so use shared IRQs */
+
+	    if (probe_opl3sa2_mpu(&mpu_cfg))
+	    {
+	        attach_opl3sa2_mpu(&mpu_cfg);
+	    }
+	}
+#endif
+	SOUND_LOCK;
+	return 0;
+}
+
+
+void cleanup_module(void)
+{
+#if (defined(CONFIG_MPU401) || defined(CONFIG_MPU_EMU)) && defined(CONFIG_MIDI)
+        if(mpu_cfg.slots[1] != -1)
+	{
+            unload_opl3sa2_mpu(&mpu_cfg);
+	}
+#endif
+	unload_opl3sa2_mss(&mss_cfg);
+	unload_opl3sa2(&cfg);
+	SOUND_LOCK_END;
+}
+
+#endif
+#endif