init android origin source code

1 files changed, 1292 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/sound/oss/sb_common.c b/ANDROID_3.4.5/sound/oss/sb_common.c
new file mode 100644
index 00000000..7d42c541
--- /dev/null
+++ b/ANDROID_3.4.5/sound/oss/sb_common.c
@@ -0,0 +1,1292 @@
+/*
+ * sound/oss/sb_common.c
+ *
+ * Common routines for Sound Blaster compatible cards.
+ *
+ *
+ * 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.
+ *
+ *
+ * Daniel J. Rodriksson: Modified sbintr to handle 8 and 16 bit interrupts
+ *                       for full duplex support ( only sb16 by now )
+ * Rolf Fokkens:	 Added (BETA?) support for ES1887 chips.
+ * (fokkensr@vertis.nl)	 Which means: You can adjust the recording levels.
+ *
+ * 2000/01/18 - separated sb_card and sb_common -
+ * Jeff Garzik <jgarzik@pobox.com>
+ *
+ * 2000/09/18 - got rid of attach_uart401
+ * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ * 2001/01/26 - replaced CLI/STI with spinlocks
+ * Chris Rankin <rankinc@zipworld.com.au>
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+
+#include "sound_config.h"
+#include "sound_firmware.h"
+
+#include "mpu401.h"
+
+#include "sb_mixer.h"
+#include "sb.h"
+#include "sb_ess.h"
+
+/*
+ * global module flag
+ */
+
+int sb_be_quiet;
+
+static sb_devc *detected_devc;	/* For communication from probe to init */
+static sb_devc *last_devc;	/* For MPU401 initialization */
+
+static unsigned char jazz_irq_bits[] = {
+	0, 0, 2, 3, 0, 1, 0, 4, 0, 2, 5, 0, 0, 0, 0, 6
+};
+
+static unsigned char jazz_dma_bits[] = {
+	0, 1, 0, 2, 0, 3, 0, 4
+};
+
+void *smw_free;
+
+/*
+ * Jazz16 chipset specific control variables
+ */
+
+static int jazz16_base;			/* Not detected */
+static unsigned char jazz16_bits;	/* I/O relocation bits */
+static DEFINE_SPINLOCK(jazz16_lock);
+
+/*
+ * Logitech Soundman Wave specific initialization code
+ */
+
+#ifdef SMW_MIDI0001_INCLUDED
+#include "smw-midi0001.h"
+#else
+static unsigned char *smw_ucode;
+static int      smw_ucodeLen;
+
+#endif
+
+static sb_devc *last_sb;		/* Last sb loaded */
+
+int sb_dsp_command(sb_devc * devc, unsigned char val)
+{
+	int i;
+	unsigned long limit;
+
+	limit = jiffies + HZ / 10;	/* Timeout */
+	
+	/*
+	 * Note! the i<500000 is an emergency exit. The sb_dsp_command() is sometimes
+	 * called while interrupts are disabled. This means that the timer is
+	 * disabled also. However the timeout situation is a abnormal condition.
+	 * Normally the DSP should be ready to accept commands after just couple of
+	 * loops.
+	 */
+
+	for (i = 0; i < 500000 && (limit-jiffies)>0; i++)
+	{
+		if ((inb(DSP_STATUS) & 0x80) == 0)
+		{
+			outb((val), DSP_COMMAND);
+			return 1;
+		}
+	}
+	printk(KERN_WARNING "Sound Blaster:  DSP command(%x) timeout.\n", val);
+	return 0;
+}
+
+int sb_dsp_get_byte(sb_devc * devc)
+{
+	int i;
+
+	for (i = 1000; i; i--)
+	{
+		if (inb(DSP_DATA_AVAIL) & 0x80)
+			return inb(DSP_READ);
+	}
+	return 0xffff;
+}
+
+static void sb_intr (sb_devc *devc)
+{
+	int status;
+	unsigned char   src = 0xff;
+
+	if (devc->model == MDL_SB16)
+	{
+		src = sb_getmixer(devc, IRQ_STAT);	/* Interrupt source register */
+
+		if (src & 4)						/* MPU401 interrupt */
+			if(devc->midi_irq_cookie)
+				uart401intr(devc->irq, devc->midi_irq_cookie);
+
+		if (!(src & 3))
+			return;	/* Not a DSP interrupt */
+	}
+	if (devc->intr_active && (!devc->fullduplex || (src & 0x01)))
+	{
+		switch (devc->irq_mode)
+		{
+			case IMODE_OUTPUT:
+				DMAbuf_outputintr(devc->dev, 1);
+				break;
+
+			case IMODE_INPUT:
+				DMAbuf_inputintr(devc->dev);
+				break;
+
+			case IMODE_INIT:
+				break;
+
+			case IMODE_MIDI:
+				sb_midi_interrupt(devc);
+				break;
+
+			default:
+				/* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */
+				;
+		}
+	}
+	else if (devc->intr_active_16 && (src & 0x02))
+	{
+		switch (devc->irq_mode_16)
+		{
+			case IMODE_OUTPUT:
+				DMAbuf_outputintr(devc->dev, 1);
+				break;
+
+			case IMODE_INPUT:
+				DMAbuf_inputintr(devc->dev);
+				break;
+
+			case IMODE_INIT:
+				break;
+
+			default:
+				/* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */
+				;
+		}
+	}
+	/*
+	 * Acknowledge interrupts 
+	 */
+
+	if (src & 0x01)
+		status = inb(DSP_DATA_AVAIL);
+
+	if (devc->model == MDL_SB16 && src & 0x02)
+		status = inb(DSP_DATA_AVL16);
+}
+
+static void pci_intr(sb_devc *devc)
+{
+	int src = inb(devc->pcibase+0x1A);
+	src&=3;
+	if(src)
+		sb_intr(devc);
+}
+
+static irqreturn_t sbintr(int irq, void *dev_id)
+{
+	sb_devc *devc = dev_id;
+
+	devc->irq_ok = 1;
+
+	switch (devc->model) {
+	case MDL_ESSPCI:
+		pci_intr (devc);
+		break;
+		
+	case MDL_ESS:
+		ess_intr (devc);
+		break;
+	default:
+		sb_intr (devc);
+		break;
+	}
+	return IRQ_HANDLED;
+}
+
+int sb_dsp_reset(sb_devc * devc)
+{
+	int loopc;
+
+	DEB(printk("Entered sb_dsp_reset()\n"));
+
+	if (devc->model == MDL_ESS) return ess_dsp_reset (devc);
+
+	/* This is only for non-ESS chips */
+
+	outb(1, DSP_RESET);
+
+	udelay(10);
+	outb(0, DSP_RESET);
+	udelay(30);
+
+	for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++);
+
+	if (inb(DSP_READ) != 0xAA)
+	{
+		DDB(printk("sb: No response to RESET\n"));
+		return 0;	/* Sorry */
+	}
+
+	DEB(printk("sb_dsp_reset() OK\n"));
+
+	return 1;
+}
+
+static void dsp_get_vers(sb_devc * devc)
+{
+	int i;
+
+	unsigned long   flags;
+
+	DDB(printk("Entered dsp_get_vers()\n"));
+	spin_lock_irqsave(&devc->lock, flags);
+	devc->major = devc->minor = 0;
+	sb_dsp_command(devc, 0xe1);	/* Get version */
+
+	for (i = 100000; i; i--)
+	{
+		if (inb(DSP_DATA_AVAIL) & 0x80)
+		{
+			if (devc->major == 0)
+				devc->major = inb(DSP_READ);
+			else
+			{
+				devc->minor = inb(DSP_READ);
+				break;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&devc->lock, flags);
+	DDB(printk("DSP version %d.%02d\n", devc->major, devc->minor));
+}
+
+static int sb16_set_dma_hw(sb_devc * devc)
+{
+	int bits;
+
+	if (devc->dma8 != 0 && devc->dma8 != 1 && devc->dma8 != 3)
+	{
+		printk(KERN_ERR "SB16: Invalid 8 bit DMA (%d)\n", devc->dma8);
+		return 0;
+	}
+	bits = (1 << devc->dma8);
+
+	if (devc->dma16 >= 5 && devc->dma16 <= 7)
+		bits |= (1 << devc->dma16);
+
+	sb_setmixer(devc, DMA_NR, bits);
+	return 1;
+}
+
+static void sb16_set_mpu_port(sb_devc * devc, struct address_info *hw_config)
+{
+	/*
+	 * This routine initializes new MIDI port setup register of SB Vibra (CT2502).
+	 */
+	unsigned char   bits = sb_getmixer(devc, 0x84) & ~0x06;
+
+	switch (hw_config->io_base)
+	{
+		case 0x300:
+			sb_setmixer(devc, 0x84, bits | 0x04);
+			break;
+
+		case 0x330:
+			sb_setmixer(devc, 0x84, bits | 0x00);
+			break;
+
+		default:
+			sb_setmixer(devc, 0x84, bits | 0x02);		/* Disable MPU */
+			printk(KERN_ERR "SB16: Invalid MIDI I/O port %x\n", hw_config->io_base);
+	}
+}
+
+static int sb16_set_irq_hw(sb_devc * devc, int level)
+{
+	int ival;
+
+	switch (level)
+	{
+		case 5:
+			ival = 2;
+			break;
+		case 7:
+			ival = 4;
+			break;
+		case 9:
+			ival = 1;
+			break;
+		case 10:
+			ival = 8;
+			break;
+		default:
+			printk(KERN_ERR "SB16: Invalid IRQ%d\n", level);
+			return 0;
+	}
+	sb_setmixer(devc, IRQ_NR, ival);
+	return 1;
+}
+
+static void relocate_Jazz16(sb_devc * devc, struct address_info *hw_config)
+{
+	unsigned char bits = 0;
+	unsigned long flags;
+
+	if (jazz16_base != 0 && jazz16_base != hw_config->io_base)
+		return;
+
+	switch (hw_config->io_base)
+	{
+		case 0x220:
+			bits = 1;
+			break;
+		case 0x240:
+			bits = 2;
+			break;
+		case 0x260:
+			bits = 3;
+			break;
+		default:
+			return;
+	}
+	bits = jazz16_bits = bits << 5;
+	jazz16_base = hw_config->io_base;
+
+	/*
+	 *	Magic wake up sequence by writing to 0x201 (aka Joystick port)
+	 */
+	spin_lock_irqsave(&jazz16_lock, flags);
+	outb((0xAF), 0x201);
+	outb((0x50), 0x201);
+	outb((bits), 0x201);
+	spin_unlock_irqrestore(&jazz16_lock, flags);
+}
+
+static int init_Jazz16(sb_devc * devc, struct address_info *hw_config)
+{
+	char name[100];
+	/*
+	 * First try to check that the card has Jazz16 chip. It identifies itself
+	 * by returning 0x12 as response to DSP command 0xfa.
+	 */
+
+	if (!sb_dsp_command(devc, 0xfa))
+		return 0;
+
+	if (sb_dsp_get_byte(devc) != 0x12)
+		return 0;
+
+	/*
+	 * OK so far. Now configure the IRQ and DMA channel used by the card.
+	 */
+	if (hw_config->irq < 1 || hw_config->irq > 15 || jazz_irq_bits[hw_config->irq] == 0)
+	{
+		printk(KERN_ERR "Jazz16: Invalid interrupt (IRQ%d)\n", hw_config->irq);
+		return 0;
+	}
+	if (hw_config->dma < 0 || hw_config->dma > 3 || jazz_dma_bits[hw_config->dma] == 0)
+	{
+		  printk(KERN_ERR "Jazz16: Invalid 8 bit DMA (DMA%d)\n", hw_config->dma);
+		  return 0;
+	}
+	if (hw_config->dma2 < 0)
+	{
+		printk(KERN_ERR "Jazz16: No 16 bit DMA channel defined\n");
+		return 0;
+	}
+	if (hw_config->dma2 < 5 || hw_config->dma2 > 7 || jazz_dma_bits[hw_config->dma2] == 0)
+	{
+		printk(KERN_ERR "Jazz16: Invalid 16 bit DMA (DMA%d)\n", hw_config->dma2);
+		return 0;
+	}
+	devc->dma16 = hw_config->dma2;
+
+	if (!sb_dsp_command(devc, 0xfb))
+		return 0;
+
+	if (!sb_dsp_command(devc, jazz_dma_bits[hw_config->dma] |
+			(jazz_dma_bits[hw_config->dma2] << 4)))
+		return 0;
+
+	if (!sb_dsp_command(devc, jazz_irq_bits[hw_config->irq]))
+		return 0;
+
+	/*
+	 * Now we have configured a standard Jazz16 device. 
+	 */
+	devc->model = MDL_JAZZ;
+	strcpy(name, "Jazz16");
+
+	hw_config->name = "Jazz16";
+	devc->caps |= SB_NO_MIDI;
+	return 1;
+}
+
+static void relocate_ess1688(sb_devc * devc)
+{
+	unsigned char bits;
+
+	switch (devc->base)
+	{
+		case 0x220:
+			bits = 0x04;
+			break;
+		case 0x230:
+			bits = 0x05;
+			break;
+		case 0x240:
+			bits = 0x06;
+			break;
+		case 0x250:
+			bits = 0x07;
+			break;
+		default:
+			return;	/* Wrong port */
+	}
+
+	DDB(printk("Doing ESS1688 address selection\n"));
+	
+	/*
+	 * ES1688 supports two alternative ways for software address config.
+	 * First try the so called Read-Sequence-Key method.
+	 */
+
+	/* Reset the sequence logic */
+	inb(0x229);
+	inb(0x229);
+	inb(0x229);
+
+	/* Perform the read sequence */
+	inb(0x22b);
+	inb(0x229);
+	inb(0x22b);
+	inb(0x229);
+	inb(0x229);
+	inb(0x22b);
+	inb(0x229);
+
+	/* Select the base address by reading from it. Then probe using the port. */
+	inb(devc->base);
+	if (sb_dsp_reset(devc))	/* Bingo */
+		return;
+
+#if 0				/* This causes system lockups (Nokia 386/25 at least) */
+	/*
+	 * The last resort is the system control register method.
+	 */
+
+	outb((0x00), 0xfb);	/* 0xFB is the unlock register */
+	outb((0x00), 0xe0);	/* Select index 0 */
+	outb((bits), 0xe1);	/* Write the config bits */
+	outb((0x00), 0xf9);	/* 0xFB is the lock register */
+#endif
+}
+
+int sb_dsp_detect(struct address_info *hw_config, int pci, int pciio, struct sb_module_options *sbmo)
+{
+	sb_devc sb_info;
+	sb_devc *devc = &sb_info;
+
+	memset((char *) &sb_info, 0, sizeof(sb_info));	/* Zero everything */
+
+	/* Copy module options in place */
+	if(sbmo) memcpy(&devc->sbmo, sbmo, sizeof(struct sb_module_options));
+
+	sb_info.my_mididev = -1;
+	sb_info.my_mixerdev = -1;
+	sb_info.dev = -1;
+
+	/*
+	 * Initialize variables 
+	 */
+	
+	DDB(printk("sb_dsp_detect(%x) entered\n", hw_config->io_base));
+
+	spin_lock_init(&devc->lock);
+	devc->type = hw_config->card_subtype;
+
+	devc->base = hw_config->io_base;
+	devc->irq = hw_config->irq;
+	devc->dma8 = hw_config->dma;
+
+	devc->dma16 = -1;
+	devc->pcibase = pciio;
+	
+	if(pci == SB_PCI_ESSMAESTRO)
+	{
+		devc->model = MDL_ESSPCI;
+		devc->caps |= SB_PCI_IRQ;
+		hw_config->driver_use_1 |= SB_PCI_IRQ;
+		hw_config->card_subtype	= MDL_ESSPCI;
+	}
+	
+	if(pci == SB_PCI_YAMAHA)
+	{
+		devc->model = MDL_YMPCI;
+		devc->caps |= SB_PCI_IRQ;
+		hw_config->driver_use_1 |= SB_PCI_IRQ;
+		hw_config->card_subtype	= MDL_YMPCI;
+		
+		printk("Yamaha PCI mode.\n");
+	}
+	
+	if (devc->sbmo.acer)
+	{
+		unsigned long flags;
+
+		spin_lock_irqsave(&devc->lock, flags);
+		inb(devc->base + 0x09);
+		inb(devc->base + 0x09);
+		inb(devc->base + 0x09);
+		inb(devc->base + 0x0b);
+		inb(devc->base + 0x09);
+		inb(devc->base + 0x0b);
+		inb(devc->base + 0x09);
+		inb(devc->base + 0x09);
+		inb(devc->base + 0x0b);
+		inb(devc->base + 0x09);
+		inb(devc->base + 0x00);
+		spin_unlock_irqrestore(&devc->lock, flags);
+	}
+	/*
+	 * Detect the device
+	 */
+
+	if (sb_dsp_reset(devc))
+		dsp_get_vers(devc);
+	else
+		devc->major = 0;
+
+	if (devc->type == 0 || devc->type == MDL_JAZZ || devc->type == MDL_SMW)
+		if (devc->major == 0 || (devc->major == 3 && devc->minor == 1))
+			relocate_Jazz16(devc, hw_config);
+
+	if (devc->major == 0 && (devc->type == MDL_ESS || devc->type == 0))
+		relocate_ess1688(devc);
+
+	if (!sb_dsp_reset(devc))
+	{
+		DDB(printk("SB reset failed\n"));
+#ifdef MODULE
+		printk(KERN_INFO "sb: dsp reset failed.\n");
+#endif
+		return 0;
+	}
+	if (devc->major == 0)
+		dsp_get_vers(devc);
+
+	if (devc->major == 3 && devc->minor == 1)
+	{
+		if (devc->type == MDL_AZTECH)		/* SG Washington? */
+		{
+			if (sb_dsp_command(devc, 0x09))
+				if (sb_dsp_command(devc, 0x00))	/* Enter WSS mode */
+				{
+					int i;
+
+					/* Have some delay */
+					for (i = 0; i < 10000; i++)
+						inb(DSP_DATA_AVAIL);
+					devc->caps = SB_NO_AUDIO | SB_NO_MIDI;	/* Mixer only */
+					devc->model = MDL_AZTECH;
+				}
+		}
+	}
+	
+	if(devc->type == MDL_ESSPCI)
+		devc->model = MDL_ESSPCI;
+		
+	if(devc->type == MDL_YMPCI)
+	{
+		printk("YMPCI selected\n");
+		devc->model = MDL_YMPCI;
+	}
+		
+	/*
+	 * Save device information for sb_dsp_init()
+	 */
+
+
+	detected_devc = kmalloc(sizeof(sb_devc), GFP_KERNEL);
+	if (detected_devc == NULL)
+	{
+		printk(KERN_ERR "sb: Can't allocate memory for device information\n");
+		return 0;
+	}
+	memcpy(detected_devc, devc, sizeof(sb_devc));
+	MDB(printk(KERN_INFO "SB %d.%02d detected OK (%x)\n", devc->major, devc->minor, hw_config->io_base));
+	return 1;
+}
+
+int sb_dsp_init(struct address_info *hw_config, struct module *owner)
+{
+	sb_devc *devc;
+	char name[100];
+	extern int sb_be_quiet;
+	int	mixer22, mixer30;
+	
+/*
+ * Check if we had detected a SB device earlier
+ */
+	DDB(printk("sb_dsp_init(%x) entered\n", hw_config->io_base));
+	name[0] = 0;
+
+	if (detected_devc == NULL)
+	{
+		MDB(printk("No detected device\n"));
+		return 0;
+	}
+	devc = detected_devc;
+	detected_devc = NULL;
+
+	if (devc->base != hw_config->io_base)
+	{
+		DDB(printk("I/O port mismatch\n"));
+		release_region(devc->base, 16);
+		return 0;
+	}
+	/*
+	 * Now continue initialization of the device
+	 */
+
+	devc->caps = hw_config->driver_use_1;
+
+	if (!((devc->caps & SB_NO_AUDIO) && (devc->caps & SB_NO_MIDI)) && hw_config->irq > 0)
+	{			/* IRQ setup */
+		
+		/*
+		 *	ESS PCI cards do shared PCI IRQ stuff. Since they
+		 *	will get shared PCI irq lines we must cope.
+		 */
+		 
+		int i=(devc->caps&SB_PCI_IRQ)?IRQF_SHARED:0;
+		
+		if (request_irq(hw_config->irq, sbintr, i, "soundblaster", devc) < 0)
+		{
+			printk(KERN_ERR "SB: Can't allocate IRQ%d\n", hw_config->irq);
+			release_region(devc->base, 16);
+			return 0;
+		}
+		devc->irq_ok = 0;
+
+		if (devc->major == 4)
+			if (!sb16_set_irq_hw(devc, devc->irq))	/* Unsupported IRQ */
+			{
+				free_irq(devc->irq, devc);
+				release_region(devc->base, 16);
+				return 0;
+			}
+		if ((devc->type == 0 || devc->type == MDL_ESS) &&
+			devc->major == 3 && devc->minor == 1)
+		{		/* Handle various chipsets which claim they are SB Pro compatible */
+			if ((devc->type != 0 && devc->type != MDL_ESS) ||
+				!ess_init(devc, hw_config))
+			{
+				if ((devc->type != 0 && devc->type != MDL_JAZZ &&
+					 devc->type != MDL_SMW) || !init_Jazz16(devc, hw_config))
+				{
+					DDB(printk("This is a genuine SB Pro\n"));
+				}
+			}
+		}
+		if (devc->major == 4 && devc->minor <= 11 )	/* Won't work */
+			devc->irq_ok = 1;
+		else
+		{
+			int n;
+
+			for (n = 0; n < 3 && devc->irq_ok == 0; n++)
+			{
+				if (sb_dsp_command(devc, 0xf2))	/* Cause interrupt immediately */
+				{
+					int i;
+
+					for (i = 0; !devc->irq_ok && i < 10000; i++);
+				}
+			}
+			if (!devc->irq_ok)
+				printk(KERN_WARNING "sb: Interrupt test on IRQ%d failed - Probable IRQ conflict\n", devc->irq);
+			else
+			{
+				DDB(printk("IRQ test OK (IRQ%d)\n", devc->irq));
+			}
+		}
+	}			/* IRQ setup */
+
+	last_sb = devc;
+	
+	switch (devc->major)
+	{
+		case 1:		/* SB 1.0 or 1.5 */
+			devc->model = hw_config->card_subtype = MDL_SB1;
+			break;
+
+		case 2:		/* SB 2.x */
+			if (devc->minor == 0)
+				devc->model = hw_config->card_subtype = MDL_SB2;
+			else
+				devc->model = hw_config->card_subtype = MDL_SB201;
+			break;
+
+		case 3:		/* SB Pro and most clones */
+			switch (devc->model) {
+			case 0:
+				devc->model = hw_config->card_subtype = MDL_SBPRO;
+				if (hw_config->name == NULL)
+					hw_config->name = "Sound Blaster Pro (8 BIT ONLY)";
+				break;
+			case MDL_ESS:
+				ess_dsp_init(devc, hw_config);
+				break;
+			}
+			break;
+
+		case 4:
+			devc->model = hw_config->card_subtype = MDL_SB16;
+			/* 
+			 * ALS007 and ALS100 return DSP version 4.2 and have 2 post-reset !=0
+			 * registers at 0x3c and 0x4c (output ctrl registers on ALS007) whereas
+			 * a "standard" SB16 doesn't have a register at 0x4c.  ALS100 actively
+			 * updates register 0x22 whenever 0x30 changes, as per the SB16 spec.
+			 * Since ALS007 doesn't, this can be used to differentiate the 2 cards.
+			 */
+			if ((devc->minor == 2) && sb_getmixer(devc,0x3c) && sb_getmixer(devc,0x4c)) 
+			{
+				mixer30 = sb_getmixer(devc,0x30);
+				sb_setmixer(devc,0x22,(mixer22=sb_getmixer(devc,0x22)) & 0x0f);
+				sb_setmixer(devc,0x30,0xff);
+				/* ALS100 will force 0x30 to 0xf8 like SB16; ALS007 will allow 0xff. */
+				/* Register 0x22 & 0xf0 on ALS100 == 0xf0; on ALS007 it == 0x10.     */
+				if ((sb_getmixer(devc,0x30) != 0xff) || ((sb_getmixer(devc,0x22) & 0xf0) != 0x10)) 
+				{
+					devc->submodel = SUBMDL_ALS100;
+					if (hw_config->name == NULL)
+						hw_config->name = "Sound Blaster 16 (ALS-100)";
+        			}
+        			else
+        			{
+        				sb_setmixer(devc,0x3c,0x1f);    /* Enable all inputs */
+					sb_setmixer(devc,0x4c,0x1f);
+					sb_setmixer(devc,0x22,mixer22); /* Restore 0x22 to original value */
+					devc->submodel = SUBMDL_ALS007;
+					if (hw_config->name == NULL)
+						hw_config->name = "Sound Blaster 16 (ALS-007)";
+				}
+				sb_setmixer(devc,0x30,mixer30);
+			}
+			else if (hw_config->name == NULL)
+				hw_config->name = "Sound Blaster 16";
+
+			if (hw_config->dma2 == -1)
+				devc->dma16 = devc->dma8;
+			else if (hw_config->dma2 < 5 || hw_config->dma2 > 7)
+			{
+				printk(KERN_WARNING  "SB16: Bad or missing 16 bit DMA channel\n");
+				devc->dma16 = devc->dma8;
+			}
+			else
+				devc->dma16 = hw_config->dma2;
+
+			if(!sb16_set_dma_hw(devc)) {
+				free_irq(devc->irq, devc);
+			        release_region(hw_config->io_base, 16);
+				return 0;
+			}
+
+			devc->caps |= SB_NO_MIDI;
+	}
+
+	if (!(devc->caps & SB_NO_MIXER))
+		if (devc->major == 3 || devc->major == 4)
+			sb_mixer_init(devc, owner);
+
+	if (!(devc->caps & SB_NO_MIDI))
+		sb_dsp_midi_init(devc, owner);
+
+	if (hw_config->name == NULL)
+		hw_config->name = "Sound Blaster (8 BIT/MONO ONLY)";
+
+	sprintf(name, "%s (%d.%02d)", hw_config->name, devc->major, devc->minor);
+	conf_printf(name, hw_config);
+
+	/*
+	 * Assuming that a sound card is Sound Blaster (compatible) is the most common
+	 * configuration error and the mother of all problems. Usually sound cards
+	 * emulate SB Pro but in addition they have a 16 bit native mode which should be
+	 * used in Unix. See Readme.cards for more information about configuring OSS/Free
+	 * properly.
+	 */
+	if (devc->model <= MDL_SBPRO)
+	{
+		if (devc->major == 3 && devc->minor != 1)	/* "True" SB Pro should have v3.1 (rare ones may have 3.2). */
+		{
+			printk(KERN_INFO "This sound card may not be fully Sound Blaster Pro compatible.\n");
+			printk(KERN_INFO "In many cases there is another way to configure OSS so that\n");
+			printk(KERN_INFO "it works properly with OSS (for example in 16 bit mode).\n");
+			printk(KERN_INFO "Please ignore this message if you _really_ have a SB Pro.\n");
+		}
+		else if (!sb_be_quiet && devc->model == MDL_SBPRO)
+		{
+			printk(KERN_INFO "SB DSP version is just %d.%02d which means that your card is\n", devc->major, devc->minor);
+			printk(KERN_INFO "several years old (8 bit only device) or alternatively the sound driver\n");
+			printk(KERN_INFO "is incorrectly configured.\n");
+		}
+	}
+	hw_config->card_subtype = devc->model;
+	hw_config->slots[0]=devc->dev;
+	last_devc = devc;	/* For SB MPU detection */
+
+	if (!(devc->caps & SB_NO_AUDIO) && devc->dma8 >= 0)
+	{
+		if (sound_alloc_dma(devc->dma8, "SoundBlaster8"))
+		{
+			printk(KERN_WARNING "Sound Blaster: Can't allocate 8 bit DMA channel %d\n", devc->dma8);
+		}
+		if (devc->dma16 >= 0 && devc->dma16 != devc->dma8)
+		{
+			if (sound_alloc_dma(devc->dma16, "SoundBlaster16"))
+				printk(KERN_WARNING "Sound Blaster:  can't allocate 16 bit DMA channel %d.\n", devc->dma16);
+		}
+		sb_audio_init(devc, name, owner);
+		hw_config->slots[0]=devc->dev;
+	}
+	else
+	{
+		MDB(printk("Sound Blaster:  no audio devices found.\n"));
+	}
+	return 1;
+}
+
+/* if (sbmpu) below we allow mpu401 to manage the midi devs
+   otherwise we have to unload them. (Andrzej Krzysztofowicz) */
+   
+void sb_dsp_unload(struct address_info *hw_config, int sbmpu)
+{
+	sb_devc *devc;
+
+	devc = audio_devs[hw_config->slots[0]]->devc;
+
+	if (devc && devc->base == hw_config->io_base)
+	{
+		if ((devc->model & MDL_ESS) && devc->pcibase)
+			release_region(devc->pcibase, 8);
+
+		release_region(devc->base, 16);
+
+		if (!(devc->caps & SB_NO_AUDIO))
+		{
+			sound_free_dma(devc->dma8);
+			if (devc->dma16 >= 0)
+				sound_free_dma(devc->dma16);
+		}
+		if (!(devc->caps & SB_NO_AUDIO && devc->caps & SB_NO_MIDI))
+		{
+			if (devc->irq > 0)
+				free_irq(devc->irq, devc);
+
+			sb_mixer_unload(devc);
+			/* We don't have to do this bit any more the UART401 is its own
+				master  -- Krzysztof Halasa */
+			/* But we have to do it, if UART401 is not detected */
+			if (!sbmpu)
+				sound_unload_mididev(devc->my_mididev);
+			sound_unload_audiodev(devc->dev);
+		}
+		kfree(devc);
+	}
+	else
+		release_region(hw_config->io_base, 16);
+
+	kfree(detected_devc);
+}
+
+/*
+ *	Mixer access routines
+ *
+ *	ES1887 modifications: some mixer registers reside in the
+ *	range above 0xa0. These must be accessed in another way.
+ */
+
+void sb_setmixer(sb_devc * devc, unsigned int port, unsigned int value)
+{
+	unsigned long flags;
+
+	if (devc->model == MDL_ESS) {
+		ess_setmixer (devc, port, value);
+		return;
+	}
+
+	spin_lock_irqsave(&devc->lock, flags);
+
+	outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
+	udelay(20);
+	outb(((unsigned char) (value & 0xff)), MIXER_DATA);
+	udelay(20);
+
+	spin_unlock_irqrestore(&devc->lock, flags);
+}
+
+unsigned int sb_getmixer(sb_devc * devc, unsigned int port)
+{
+	unsigned int val;
+	unsigned long flags;
+
+	if (devc->model == MDL_ESS) return ess_getmixer (devc, port);
+
+	spin_lock_irqsave(&devc->lock, flags);
+
+	outb(((unsigned char) (port & 0xff)), MIXER_ADDR);
+	udelay(20);
+	val = inb(MIXER_DATA);
+	udelay(20);
+
+	spin_unlock_irqrestore(&devc->lock, flags);
+
+	return val;
+}
+
+void sb_chgmixer
+	(sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val)
+{
+	int value;
+
+	value = sb_getmixer(devc, reg);
+	value = (value & ~mask) | (val & mask);
+	sb_setmixer(devc, reg, value);
+}
+
+/*
+ *	MPU401 MIDI initialization.
+ */
+
+static void smw_putmem(sb_devc * devc, int base, int addr, unsigned char val)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&jazz16_lock, flags);  /* NOT the SB card? */
+
+	outb((addr & 0xff), base + 1);	/* Low address bits */
+	outb((addr >> 8), base + 2);	/* High address bits */
+	outb((val), base);	/* Data */
+
+	spin_unlock_irqrestore(&jazz16_lock, flags);
+}
+
+static unsigned char smw_getmem(sb_devc * devc, int base, int addr)
+{
+	unsigned long flags;
+	unsigned char val;
+
+	spin_lock_irqsave(&jazz16_lock, flags);  /* NOT the SB card? */
+
+	outb((addr & 0xff), base + 1);	/* Low address bits */
+	outb((addr >> 8), base + 2);	/* High address bits */
+	val = inb(base);	/* Data */
+
+	spin_unlock_irqrestore(&jazz16_lock, flags);
+	return val;
+}
+
+static int smw_midi_init(sb_devc * devc, struct address_info *hw_config)
+{
+	int mpu_base = hw_config->io_base;
+	int mp_base = mpu_base + 4;		/* Microcontroller base */
+	int i;
+	unsigned char control;
+
+
+	/*
+	 *  Reset the microcontroller so that the RAM can be accessed
+	 */
+
+	control = inb(mpu_base + 7);
+	outb((control | 3), mpu_base + 7);	/* Set last two bits to 1 (?) */
+	outb(((control & 0xfe) | 2), mpu_base + 7);	/* xxxxxxx0 resets the mc */
+
+	mdelay(3);	/* Wait at least 1ms */
+
+	outb((control & 0xfc), mpu_base + 7);	/* xxxxxx00 enables RAM */
+
+	/*
+	 *  Detect microcontroller by probing the 8k RAM area
+	 */
+	smw_putmem(devc, mp_base, 0, 0x00);
+	smw_putmem(devc, mp_base, 1, 0xff);
+	udelay(10);
+
+	if (smw_getmem(devc, mp_base, 0) != 0x00 || smw_getmem(devc, mp_base, 1) != 0xff)
+	{
+		DDB(printk("SM Wave: No microcontroller RAM detected (%02x, %02x)\n", smw_getmem(devc, mp_base, 0), smw_getmem(devc, mp_base, 1)));
+		return 0;	/* No RAM */
+	}
+	/*
+	 *  There is RAM so assume it's really a SM Wave
+	 */
+
+	devc->model = MDL_SMW;
+	smw_mixer_init(devc);
+
+#ifdef MODULE
+	if (!smw_ucode)
+	{
+		smw_ucodeLen = mod_firmware_load("/etc/sound/midi0001.bin", (void *) &smw_ucode);
+		smw_free = smw_ucode;
+	}
+#endif
+	if (smw_ucodeLen > 0)
+	{
+		if (smw_ucodeLen != 8192)
+		{
+			printk(KERN_ERR "SM Wave: Invalid microcode (MIDI0001.BIN) length\n");
+			return 1;
+		}
+		/*
+		 *  Download microcode
+		 */
+
+		for (i = 0; i < 8192; i++)
+			smw_putmem(devc, mp_base, i, smw_ucode[i]);
+
+		/*
+		 *  Verify microcode
+		 */
+
+		for (i = 0; i < 8192; i++)
+			if (smw_getmem(devc, mp_base, i) != smw_ucode[i])
+			{
+				printk(KERN_ERR "SM Wave: Microcode verification failed\n");
+				return 0;
+			}
+	}
+	control = 0;
+#ifdef SMW_SCSI_IRQ
+	/*
+	 * Set the SCSI interrupt (IRQ2/9, IRQ3 or IRQ10). The SCSI interrupt
+	 * is disabled by default.
+	 *
+	 * FIXME - make this a module option
+	 *
+	 * BTW the Zilog 5380 SCSI controller is located at MPU base + 0x10.
+	 */
+	{
+		static unsigned char scsi_irq_bits[] = {
+			0, 0, 3, 1, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0
+		};
+		control |= scsi_irq_bits[SMW_SCSI_IRQ] << 6;
+	}
+#endif
+
+#ifdef SMW_OPL4_ENABLE
+	/*
+	 *  Make the OPL4 chip visible on the PC bus at 0x380.
+	 *
+	 *  There is no need to enable this feature since this driver
+	 *  doesn't support OPL4 yet. Also there is no RAM in SM Wave so
+	 *  enabling OPL4 is pretty useless.
+	 */
+	control |= 0x10;	/* Uses IRQ12 if bit 0x20 == 0 */
+	/* control |= 0x20;      Uncomment this if you want to use IRQ7 */
+#endif
+	outb((control | 0x03), mpu_base + 7);	/* xxxxxx11 restarts */
+	hw_config->name = "SoundMan Wave";
+	return 1;
+}
+
+static int init_Jazz16_midi(sb_devc * devc, struct address_info *hw_config)
+{
+	int mpu_base = hw_config->io_base;
+	int sb_base = devc->base;
+	int irq = hw_config->irq;
+
+	unsigned char bits = 0;
+	unsigned long flags;
+
+	if (irq < 0)
+		irq *= -1;
+
+	if (irq < 1 || irq > 15 ||
+	    jazz_irq_bits[irq] == 0)
+	{
+		printk(KERN_ERR "Jazz16: Invalid MIDI interrupt (IRQ%d)\n", irq);
+		return 0;
+	}
+	switch (sb_base)
+	{
+		case 0x220:
+			bits = 1;
+			break;
+		case 0x240:
+			bits = 2;
+			break;
+		case 0x260:
+			bits = 3;
+			break;
+		default:
+			return 0;
+	}
+	bits = jazz16_bits = bits << 5;
+	switch (mpu_base)
+	{
+		case 0x310:
+			bits |= 1;
+			break;
+		case 0x320:
+			bits |= 2;
+			break;
+		case 0x330:
+			bits |= 3;
+			break;
+		default:
+			printk(KERN_ERR "Jazz16: Invalid MIDI I/O port %x\n", mpu_base);
+			return 0;
+	}
+	/*
+	 *	Magic wake up sequence by writing to 0x201 (aka Joystick port)
+	 */
+	spin_lock_irqsave(&jazz16_lock, flags);
+	outb(0xAF, 0x201);
+	outb(0x50, 0x201);
+	outb(bits, 0x201);
+	spin_unlock_irqrestore(&jazz16_lock, flags);
+
+	hw_config->name = "Jazz16";
+	smw_midi_init(devc, hw_config);
+
+	if (!sb_dsp_command(devc, 0xfb))
+		return 0;
+
+	if (!sb_dsp_command(devc, jazz_dma_bits[devc->dma8] |
+			    (jazz_dma_bits[devc->dma16] << 4)))
+		return 0;
+
+	if (!sb_dsp_command(devc, jazz_irq_bits[devc->irq] |
+			    (jazz_irq_bits[irq] << 4)))
+		return 0;
+
+	return 1;
+}
+
+int probe_sbmpu(struct address_info *hw_config, struct module *owner)
+{
+	sb_devc *devc = last_devc;
+	int ret;
+
+	if (last_devc == NULL)
+		return 0;
+
+	last_devc = NULL;
+
+	if (hw_config->io_base <= 0)
+	{
+		/* The real vibra16 is fine about this, but we have to go
+		   wipe up after Cyrix again */
+		   	   
+		if(devc->model == MDL_SB16 && devc->minor >= 12)
+		{
+			unsigned char   bits = sb_getmixer(devc, 0x84) & ~0x06;
+			sb_setmixer(devc, 0x84, bits | 0x02);		/* Disable MPU */
+		}
+		return 0;
+	}
+
+#if defined(CONFIG_SOUND_MPU401)
+	if (devc->model == MDL_ESS)
+	{
+		struct resource *ports;
+		ports = request_region(hw_config->io_base, 2, "mpu401");
+		if (!ports) {
+			printk(KERN_ERR "sbmpu: I/O port conflict (%x)\n", hw_config->io_base);
+			return 0;
+		}
+		if (!ess_midi_init(devc, hw_config)) {
+			release_region(hw_config->io_base, 2);
+			return 0;
+		}
+		hw_config->name = "ESS1xxx MPU";
+		devc->midi_irq_cookie = NULL;
+		if (!probe_mpu401(hw_config, ports)) {
+			release_region(hw_config->io_base, 2);
+			return 0;
+		}
+		attach_mpu401(hw_config, owner);
+		if (last_sb->irq == -hw_config->irq)
+			last_sb->midi_irq_cookie =
+				(void *)(long) hw_config->slots[1];
+		return 1;
+	}
+#endif
+
+	switch (devc->model)
+	{
+		case MDL_SB16:
+			if (hw_config->io_base != 0x300 && hw_config->io_base != 0x330)
+			{
+				printk(KERN_ERR "SB16: Invalid MIDI port %x\n", hw_config->io_base);
+				return 0;
+			}
+			hw_config->name = "Sound Blaster 16";
+			if (hw_config->irq < 3 || hw_config->irq == devc->irq)
+				hw_config->irq = -devc->irq;
+			if (devc->minor > 12)		/* What is Vibra's version??? */
+				sb16_set_mpu_port(devc, hw_config);
+			break;
+
+		case MDL_JAZZ:
+			if (hw_config->irq < 3 || hw_config->irq == devc->irq)
+				hw_config->irq = -devc->irq;
+			if (!init_Jazz16_midi(devc, hw_config))
+				return 0;
+			break;
+
+		case MDL_YMPCI:
+			hw_config->name = "Yamaha PCI Legacy";
+			printk("Yamaha PCI legacy UART401 check.\n");
+			break;
+		default:
+			return 0;
+	}
+	
+	ret = probe_uart401(hw_config, owner);
+	if (ret)
+		last_sb->midi_irq_cookie=midi_devs[hw_config->slots[4]]->devc;
+	return ret;
+}
+
+void unload_sbmpu(struct address_info *hw_config)
+{
+#if defined(CONFIG_SOUND_MPU401)
+	if (!strcmp (hw_config->name, "ESS1xxx MPU")) {
+		unload_mpu401(hw_config);
+		return;
+	}
+#endif
+	unload_uart401(hw_config);
+}
+
+EXPORT_SYMBOL(sb_dsp_init);
+EXPORT_SYMBOL(sb_dsp_detect);
+EXPORT_SYMBOL(sb_dsp_unload);
+EXPORT_SYMBOL(sb_be_quiet);
+EXPORT_SYMBOL(probe_sbmpu);
+EXPORT_SYMBOL(unload_sbmpu);
+EXPORT_SYMBOL(smw_free);
+MODULE_LICENSE("GPL");