Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1097 insertions, 0 deletions

diff --git a/sound/oss/mad16.c b/sound/oss/mad16.c
new file mode 100644
index 00000000000..a7067f16991
--- /dev/null
+++ b/sound/oss/mad16.c
@@ -0,0 +1,1097 @@
+/*
+ * Copyright (C) by Hannu Savolainen 1993-1997
+ *
+ * mad16.c
+ *
+ * Initialization code for OPTi MAD16 compatible audio chips. Including
+ *
+ *      OPTi 82C928     MAD16           (replaced by C929)
+ *      OAK OTI-601D    Mozart
+ *      OAK OTI-605	Mozart		(later version with MPU401 Midi)
+ *      OPTi 82C929     MAD16 Pro
+ *      OPTi 82C930
+ *      OPTi 82C924
+ *
+ * These audio interface chips don't produce sound themselves. They just
+ * connect some other components (OPL-[234] and a WSS compatible codec)
+ * to the PC bus and perform I/O, DMA and IRQ address decoding. There is
+ * also a UART for the MPU-401 mode (not 82C928/Mozart).
+ * The Mozart chip appears to be compatible with the 82C928, although later
+ * issues of the card, using the OTI-605 chip, have an MPU-401 compatible Midi
+ * port. This port is configured differently to that of the OPTi audio chips.
+ *
+ *	Changes
+ *	
+ *	Alan Cox		Clean up, added module selections.
+ *
+ *	A. Wik			Added support for Opti924 PnP.
+ *				Improved debugging support.	16-May-1998
+ *				Fixed bug.			16-Jun-1998
+ *
+ *      Torsten Duwe            Made Opti924 PnP support non-destructive
+ *                                                             	23-Dec-1998
+ *
+ *	Paul Grayson		Added support for Midi on later Mozart cards.
+ *								25-Nov-1999
+ *	Christoph Hellwig	Adapted to module_init/module_exit.
+ *	Arnaldo C. de Melo	got rid of attach_uart401       21-Sep-2000
+ *
+ *	Pavel Rabel		Clean up                           Nov-2000
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/gameport.h>
+#include <linux/spinlock.h>
+#include "sound_config.h"
+
+#include "ad1848.h"
+#include "sb.h"
+#include "mpu401.h"
+
+static int      mad16_conf;
+static int      mad16_cdsel;
+static struct gameport *gameport;
+static DEFINE_SPINLOCK(lock);
+
+#define C928	1
+#define MOZART	2
+#define C929	3
+#define C930	4
+#define C924    5
+
+/*
+ *    Registers
+ *
+ *      The MAD16 occupies I/O ports 0xf8d to 0xf93 (fixed locations).
+ *      All ports are inactive by default. They can be activated by
+ *      writing 0xE2 or 0xE3 to the password register. The password is valid
+ *      only until the next I/O read or write.
+ *
+ *      82C930 uses 0xE4 as the password and indirect addressing to access
+ *      the config registers.
+ */
+
+#define MC0_PORT	0xf8c	/* Dummy port */
+#define MC1_PORT	0xf8d	/* SB address, CD-ROM interface type, joystick */
+#define MC2_PORT	0xf8e	/* CD-ROM address, IRQ, DMA, plus OPL4 bit */
+#define MC3_PORT	0xf8f
+#define PASSWD_REG	0xf8f
+#define MC4_PORT	0xf90
+#define MC5_PORT	0xf91
+#define MC6_PORT	0xf92
+#define MC7_PORT	0xf93
+#define MC8_PORT	0xf94
+#define MC9_PORT	0xf95
+#define MC10_PORT	0xf96
+#define MC11_PORT	0xf97
+#define MC12_PORT	0xf98
+
+static int      board_type = C928;
+
+static int     *mad16_osp;
+static int	c931_detected;	/* minor differences from C930 */
+static char	c924pnp;	/* "     "           "    C924 */
+static int	debug;  	/* debugging output */
+
+#ifdef DDB
+#undef DDB
+#endif
+#define DDB(x) do {if (debug) x;} while (0)
+
+static unsigned char mad_read(int port)
+{
+	unsigned long flags;
+	unsigned char tmp;
+
+	spin_lock_irqsave(&lock,flags);
+
+	switch (board_type)	/* Output password */
+	{
+		case C928:
+		case MOZART:
+			outb((0xE2), PASSWD_REG);
+			break;
+
+		case C929:
+			outb((0xE3), PASSWD_REG);
+			break;
+
+		case C930:
+			/* outb(( 0xE4),  PASSWD_REG); */
+			break;
+
+		case C924:
+			/* the c924 has its ports relocated by -128 if
+			   PnP is enabled  -aw */
+			if (!c924pnp)
+				outb((0xE5), PASSWD_REG); else
+				outb((0xE5), PASSWD_REG - 0x80);
+			break;
+	}
+
+	if (board_type == C930)
+	{
+		outb((port - MC0_PORT), 0xe0e);	/* Write to index reg */
+		tmp = inb(0xe0f);	/* Read from data reg */
+	}
+	else
+		if (!c924pnp)
+			tmp = inb(port); else
+			tmp = inb(port-0x80);
+	spin_unlock_irqrestore(&lock,flags);
+
+	return tmp;
+}
+
+static void mad_write(int port, int value)
+{
+	unsigned long   flags;
+
+	spin_lock_irqsave(&lock,flags);
+
+	switch (board_type)	/* Output password */
+	{
+		case C928:
+		case MOZART:
+			outb((0xE2), PASSWD_REG);
+			break;
+
+		case C929:
+			outb((0xE3), PASSWD_REG);
+			break;
+
+		case C930:
+			/* outb(( 0xE4),  PASSWD_REG); */
+			break;
+
+		case C924:
+			if (!c924pnp)
+				outb((0xE5), PASSWD_REG); else
+				outb((0xE5), PASSWD_REG - 0x80);
+			break;
+	}
+
+	if (board_type == C930)
+	{
+		outb((port - MC0_PORT), 0xe0e);	/* Write to index reg */
+		outb(((unsigned char) (value & 0xff)), 0xe0f);
+	}
+	else
+		if (!c924pnp)
+			outb(((unsigned char) (value & 0xff)), port); else
+			outb(((unsigned char) (value & 0xff)), port-0x80);
+	spin_unlock_irqrestore(&lock,flags);
+}
+
+static int __init detect_c930(void)
+{
+	unsigned char   tmp = mad_read(MC1_PORT);
+
+	if ((tmp & 0x06) != 0x06)
+	{
+		DDB(printk("Wrong C930 signature (%x)\n", tmp));
+		/* return 0; */
+	}
+	mad_write(MC1_PORT, 0);
+
+	if (mad_read(MC1_PORT) != 0x06)
+	{
+		DDB(printk("Wrong C930 signature2 (%x)\n", tmp));
+		/* return 0; */
+	}
+	mad_write(MC1_PORT, tmp);	/* Restore bits */
+
+	mad_write(MC7_PORT, 0);
+	if ((tmp = mad_read(MC7_PORT)) != 0)
+	{
+		DDB(printk("MC7 not writable (%x)\n", tmp));
+		return 0;
+	}
+	mad_write(MC7_PORT, 0xcb);
+	if ((tmp = mad_read(MC7_PORT)) != 0xcb)
+	{
+		DDB(printk("MC7 not writable2 (%x)\n", tmp));
+		return 0;
+	}
+
+	tmp = mad_read(MC0_PORT+18);
+	if (tmp == 0xff || tmp == 0x00)
+		return 1;
+	/* We probably have a C931 */
+	DDB(printk("Detected C931 config=0x%02x\n", tmp));
+	c931_detected = 1;
+
+	/*
+         * We cannot configure the chip if it is in PnP mode.
+         * If we have a CSN assigned (bit 8 in MC13) we first try
+         * a software reset, then a software power off, finally
+         * Clearing PnP mode. The last option is not
+	 * Bit 8 in MC13 
+         */
+	if ((mad_read(MC0_PORT+13) & 0x80) == 0)
+		return 1;
+
+	/* Software reset */
+	mad_write(MC9_PORT, 0x02);
+	mad_write(MC9_PORT, 0x00);
+
+	if ((mad_read(MC0_PORT+13) & 0x80) == 0)
+		return 1;
+	
+	/* Power off, and on again */
+	mad_write(MC9_PORT, 0xc2);
+	mad_write(MC9_PORT, 0xc0);
+
+	if ((mad_read(MC0_PORT+13) & 0x80) == 0)
+		return 1;
+	
+#if 0	
+	/* Force off PnP mode. This is not recommended because
+	 * the PnP bios will not recognize the chip on the next
+	 * warm boot and may assignd different resources to other
+	 * PnP/PCI cards.
+	 */
+	mad_write(MC0_PORT+17, 0x04);
+#endif
+	return 1;
+}
+
+static int __init detect_mad16(void)
+{
+	unsigned char tmp, tmp2, bit;
+	int i, port;
+
+	/*
+	 * Check that reading a register doesn't return bus float (0xff)
+	 * when the card is accessed using password. This may fail in case
+	 * the card is in low power mode. Normally at least the power saving
+	 * mode bit should be 0.
+	 */
+
+	if ((tmp = mad_read(MC1_PORT)) == 0xff)
+	{
+		DDB(printk("MC1_PORT returned 0xff\n"));
+		return 0;
+	}
+	for (i = 0xf8d; i <= 0xf98; i++)
+		if (!c924pnp)
+			DDB(printk("Port %0x (init value) = %0x\n", i, mad_read(i)));
+		else
+			DDB(printk("Port %0x (init value) = %0x\n", i-0x80, mad_read(i)));
+
+	if (board_type == C930)
+		return detect_c930();
+
+	/*
+	 * Now check that the gate is closed on first I/O after writing
+	 * the password. (This is how a MAD16 compatible card works).
+	 */
+
+	if ((tmp2 = inb(MC1_PORT)) == tmp)	/* It didn't close */
+	{
+		DDB(printk("MC1_PORT didn't close after read (0x%02x)\n", tmp2));
+		return 0;
+	}
+
+	bit  = (c924pnp) ?     0x20 : 0x80;
+	port = (c924pnp) ? MC2_PORT : MC1_PORT;
+
+	tmp = mad_read(port);
+	mad_write(port, tmp ^ bit);	/* Toggle a bit */
+	if ((tmp2 = mad_read(port)) != (tmp ^ bit))	/* Compare the bit */
+	{
+		mad_write(port, tmp);	/* Restore */
+		DDB(printk("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2));
+		return 0;
+	}
+	mad_write(port, tmp);	/* Restore */
+	return 1;		/* Bingo */
+}
+
+static int __init wss_init(struct address_info *hw_config)
+{
+	/*
+	 * Check if the IO port returns valid signature. The original MS Sound
+	 * system returns 0x04 while some cards (AudioTrix Pro for example)
+	 * return 0x00.
+	 */
+
+	if ((inb(hw_config->io_base + 3) & 0x3f) != 0x04 &&
+	    (inb(hw_config->io_base + 3) & 0x3f) != 0x00)
+	{
+		DDB(printk("No MSS signature detected on port 0x%x (0x%x)\n", hw_config->io_base, inb(hw_config->io_base + 3)));
+		return 0;
+	}
+	/*
+	 * Check that DMA0 is not in use with a 8 bit board.
+	 */
+	if (hw_config->dma == 0 && inb(hw_config->io_base + 3) & 0x80)
+	{
+		printk("MSS: Can't use DMA0 with a 8 bit card/slot\n");
+		return 0;
+	}
+	if (hw_config->irq > 9 && inb(hw_config->io_base + 3) & 0x80)
+		printk(KERN_ERR "MSS: Can't use IRQ%d with a 8 bit card/slot\n", hw_config->irq);
+	return 1;
+}
+
+static void __init init_c930(struct address_info *hw_config, int base)
+{
+	unsigned char cfg = 0;
+
+	cfg |= (0x0f & mad16_conf);
+
+	if(c931_detected)
+	{
+		/* Bit 0 has reversd meaning. Bits 1 and 2 sese
+		   reversed on write.
+		   Support only IDE cdrom. IDE port programmed
+		   somewhere else. */
+		cfg =  (cfg & 0x09) ^ 0x07;
+	}
+	cfg |= base << 4;
+	mad_write(MC1_PORT, cfg);
+
+	/* MC2 is CD configuration. Don't touch it. */
+
+	mad_write(MC3_PORT, 0);	/* Disable SB mode IRQ and DMA */
+
+	/* bit 2 of MC4 reverses it's meaning between the C930
+	   and the C931. */
+	cfg = c931_detected ? 0x04 : 0x00;
+
+	if(mad16_cdsel & 0x20)
+		mad_write(MC4_PORT, 0x62|cfg);  /* opl4 */
+	else
+		mad_write(MC4_PORT, 0x52|cfg);  /* opl3 */
+
+	mad_write(MC5_PORT, 0x3C);	/* Init it into mode2 */
+	mad_write(MC6_PORT, 0x02);	/* Enable WSS, Disable MPU and SB */
+	mad_write(MC7_PORT, 0xCB);
+	mad_write(MC10_PORT, 0x11);
+}
+
+static int __init chip_detect(void)
+{
+	int i;
+
+	/*
+	 *    Then try to detect with the old password
+	 */
+	board_type = C924;
+
+	DDB(printk("Detect using password = 0xE5\n"));
+	
+	if (detect_mad16()) {
+		return 1;
+	}
+	
+	board_type = C928;
+
+	DDB(printk("Detect using password = 0xE2\n"));
+
+	if (detect_mad16())
+	{
+		unsigned char model;
+
+		if (((model = mad_read(MC3_PORT)) & 0x03) == 0x03) {
+			DDB(printk("mad16.c: Mozart detected\n"));
+			board_type = MOZART;
+		} else {
+			DDB(printk("mad16.c: 82C928 detected???\n"));
+			board_type = C928;
+		}
+		return 1;
+	}
+
+	board_type = C929;
+
+	DDB(printk("Detect using password = 0xE3\n"));
+
+	if (detect_mad16())
+	{
+		DDB(printk("mad16.c: 82C929 detected\n"));
+		return 1;
+	}
+
+	if (inb(PASSWD_REG) != 0xff)
+		return 0;
+
+	/*
+	 * First relocate MC# registers to 0xe0e/0xe0f, disable password 
+	 */
+
+	outb((0xE4), PASSWD_REG);
+	outb((0x80), PASSWD_REG);
+
+	board_type = C930;
+
+	DDB(printk("Detect using password = 0xE4\n"));
+
+	for (i = 0xf8d; i <= 0xf93; i++)
+		DDB(printk("port %03x = %02x\n", i, mad_read(i)));
+
+        if(detect_mad16()) {
+		DDB(printk("mad16.c: 82C930 detected\n"));
+		return 1;
+	}
+
+	/* The C931 has the password reg at F8D */
+	outb((0xE4), 0xF8D);
+	outb((0x80), 0xF8D);
+	DDB(printk("Detect using password = 0xE4 for C931\n"));
+
+	if (detect_mad16()) {
+		return 1;
+	}
+
+	board_type = C924;
+	c924pnp++;
+	DDB(printk("Detect using password = 0xE5 (again), port offset -0x80\n"));
+	if (detect_mad16()) {
+		DDB(printk("mad16.c: 82C924 PnP detected\n"));
+		return 1;
+	}
+	
+	c924pnp=0;
+
+	return 0;
+}
+
+static int __init probe_mad16(struct address_info *hw_config)
+{
+	int i;
+	unsigned char tmp;
+	unsigned char cs4231_mode = 0;
+
+	int ad_flags = 0;
+
+	signed char bits;
+
+	static char     dma_bits[4] = {
+		1, 2, 0, 3
+	};
+
+	int config_port = hw_config->io_base + 0, version_port = hw_config->io_base + 3;
+	int dma = hw_config->dma, dma2 = hw_config->dma2;
+	unsigned char dma2_bit = 0;
+	int base;
+	struct resource *ports;
+
+	mad16_osp = hw_config->osp;
+
+	switch (hw_config->io_base) {
+	case 0x530:
+		base = 0;
+		break;
+	case 0xe80:
+		base = 1;
+		break;
+	case 0xf40:
+		base = 2;
+		break;
+	case 0x604:
+		base = 3;
+		break;
+	default:
+		printk(KERN_ERR "MAD16/Mozart: Bad WSS base address 0x%x\n", hw_config->io_base);
+		return 0;
+	}
+
+	if (dma != 0 && dma != 1 && dma != 3) {
+		printk(KERN_ERR "MSS: Bad DMA %d\n", dma);
+		return 0;
+	}
+
+	/*
+	 *    Check that all ports return 0xff (bus float) when no password
+	 *      is written to the password register.
+	 */
+
+	DDB(printk("--- Detecting MAD16 / Mozart ---\n"));
+	if (!chip_detect())
+		return 0;
+
+	switch (hw_config->irq) {
+	case 7:
+		bits = 8;
+		break;
+	case 9:
+		bits = 0x10;
+		break;
+	case 10:
+		bits = 0x18;
+		break;
+	case 12:
+		bits = 0x20;
+		break;
+	case 5:	/* Also IRQ5 is possible on C930 */
+		if (board_type == C930 || c924pnp) {
+			bits = 0x28;
+			break;
+		}
+	default:
+		printk(KERN_ERR "MAD16/Mozart: Bad IRQ %d\n", hw_config->irq);
+		return 0;
+	}
+
+	ports = request_region(hw_config->io_base + 4, 4, "ad1848");
+	if (!ports) {
+		printk(KERN_ERR "MSS: I/O port conflict\n");
+		return 0;
+	}
+	if (!request_region(hw_config->io_base, 4, "mad16 WSS config")) {
+		release_region(hw_config->io_base + 4, 4);
+		printk(KERN_ERR "MSS: I/O port conflict\n");
+		return 0;
+	}
+
+	if (board_type == C930) {
+		init_c930(hw_config, base);
+		goto got_it;
+	}
+
+	for (i = 0xf8d; i <= 0xf93; i++) {
+		if (!c924pnp)
+			DDB(printk("port %03x = %02x\n", i, mad_read(i)));
+		else
+			DDB(printk("port %03x = %02x\n", i-0x80, mad_read(i)));
+	}
+
+/*
+ * Set the WSS address
+ */
+
+	tmp = (mad_read(MC1_PORT) & 0x0f) | 0x80;	/* Enable WSS, Disable SB */
+	tmp |= base << 4;	/* WSS port select bits */
+
+	/*
+	 * Set optional CD-ROM and joystick settings.
+	 */
+
+	tmp &= ~0x0f;
+	tmp |= (mad16_conf & 0x0f);	/* CD-ROM and joystick bits */
+	mad_write(MC1_PORT, tmp);
+
+	tmp = mad16_cdsel;
+	mad_write(MC2_PORT, tmp);
+	mad_write(MC3_PORT, 0xf0);	/* Disable SB */
+
+	if (board_type == C924)	/* Specific C924 init values */
+	{
+		mad_write(MC4_PORT, 0xA0);
+		mad_write(MC5_PORT, 0x05);
+		mad_write(MC6_PORT, 0x03);
+	}
+	if (!ad1848_detect(ports, &ad_flags, mad16_osp))
+		goto fail;
+
+	if (ad_flags & (AD_F_CS4231 | AD_F_CS4248))
+		cs4231_mode = 0x02;	/* CS4248/CS4231 sync delay switch */
+
+	if (board_type == C929)
+	{
+		mad_write(MC4_PORT, 0xa2);
+		mad_write(MC5_PORT, 0xA5 | cs4231_mode);
+		mad_write(MC6_PORT, 0x03);	/* Disable MPU401 */
+	}
+	else
+	{
+		mad_write(MC4_PORT, 0x02);
+		mad_write(MC5_PORT, 0x30 | cs4231_mode);
+	}
+
+	for (i = 0xf8d; i <= 0xf93; i++) {
+		if (!c924pnp)
+			DDB(printk("port %03x after init = %02x\n", i, mad_read(i)));
+		else
+			DDB(printk("port %03x after init = %02x\n", i-0x80, mad_read(i)));
+	}
+
+got_it:
+	ad_flags = 0;
+	if (!ad1848_detect(ports, &ad_flags, mad16_osp))
+		goto fail;
+
+	if (!wss_init(hw_config))
+		goto fail;
+
+	/*
+	 * Set the IRQ and DMA addresses.
+	 */
+	
+	outb((bits | 0x40), config_port);
+	if ((inb(version_port) & 0x40) == 0)
+		printk(KERN_ERR "[IRQ Conflict?]\n");
+
+	/*
+	 * Handle the capture DMA channel
+	 */
+
+	if (ad_flags & AD_F_CS4231 && dma2 != -1 && dma2 != dma)
+	{
+		if (!((dma == 0 && dma2 == 1) ||
+			(dma == 1 && dma2 == 0) ||
+			(dma == 3 && dma2 == 0)))
+		{		/* Unsupported combination. Try to swap channels */
+			int tmp = dma;
+
+			dma = dma2;
+			dma2 = tmp;
+		}
+		if ((dma == 0 && dma2 == 1) || (dma == 1 && dma2 == 0) ||
+			(dma == 3 && dma2 == 0))
+		{
+			dma2_bit = 0x04;	/* Enable capture DMA */
+		}
+		else
+		{
+			printk("MAD16: Invalid capture DMA\n");
+			dma2 = dma;
+		}
+	}
+	else dma2 = dma;
+
+	outb((bits | dma_bits[dma] | dma2_bit), config_port);	/* Write IRQ+DMA setup */
+
+	hw_config->slots[0] = ad1848_init("mad16 WSS", ports,
+					  hw_config->irq,
+					  dma,
+					  dma2, 0,
+					  hw_config->osp,
+					  THIS_MODULE);
+	return 1;
+
+fail:
+	release_region(hw_config->io_base + 4, 4);
+	release_region(hw_config->io_base, 4);
+	return 0;
+}
+
+static int __init probe_mad16_mpu(struct address_info *hw_config)
+{
+	unsigned char tmp;
+
+	if (board_type < C929)	/* Early chip. No MPU support. Just SB MIDI */
+	{
+
+#ifdef CONFIG_MAD16_OLDCARD
+
+		tmp = mad_read(MC3_PORT);
+
+		/* 
+		 * MAD16 SB base is defined by the WSS base. It cannot be changed 
+		 * alone.
+		 * Ignore configured I/O base. Use the active setting. 
+		 */
+
+		if (mad_read(MC1_PORT) & 0x20)
+			hw_config->io_base = 0x240;
+		else
+			hw_config->io_base = 0x220;
+
+		switch (hw_config->irq)
+		{
+			case 5:
+				tmp = (tmp & 0x3f) | 0x80;
+				break;
+			case 7:
+				tmp = (tmp & 0x3f);
+				break;
+			case 11:
+				tmp = (tmp & 0x3f) | 0x40;
+				break;
+			default:
+				printk(KERN_ERR "mad16/Mozart: Invalid MIDI IRQ\n");
+				return 0;
+		}
+
+		mad_write(MC3_PORT, tmp | 0x04);
+		hw_config->driver_use_1 = SB_MIDI_ONLY;
+		if (!request_region(hw_config->io_base, 16, "soundblaster"))
+			return 0;
+		if (!sb_dsp_detect(hw_config, 0, 0, NULL)) {
+			release_region(hw_config->io_base, 16);
+			return 0;
+		}
+
+		if (mad_read(MC1_PORT) & 0x20)
+			hw_config->io_base = 0x240;
+		else
+			hw_config->io_base = 0x220;
+
+		hw_config->name = "Mad16/Mozart";
+		sb_dsp_init(hw_config, THIS_MODULE);
+		return 1;
+#else
+		/* assuming all later Mozart cards are identified as
+		 * either 82C928 or Mozart. If so, following code attempts
+		 * to set MPU register. TODO - add probing
+		 */
+
+		tmp = mad_read(MC8_PORT);
+
+		switch (hw_config->irq)
+		{
+			case 5:
+				tmp |= 0x08;
+				break;
+			case 7:
+				tmp |= 0x10;
+				break;
+			case 9:
+				tmp |= 0x18;
+				break;
+			case 10:
+				tmp |= 0x20;
+				break;
+			case 11:
+				tmp |= 0x28;
+				break;
+			default:
+				printk(KERN_ERR "mad16/MOZART: invalid mpu_irq\n");
+				return 0;
+		}
+
+		switch (hw_config->io_base)
+		{
+			case 0x300:
+				tmp |= 0x01;
+				break;
+			case 0x310:
+				tmp |= 0x03;
+				break;
+			case 0x320:
+				tmp |= 0x05;
+				break;
+			case 0x330:
+				tmp |= 0x07;
+				break;
+			default:
+				printk(KERN_ERR "mad16/MOZART: invalid mpu_io\n");
+				return 0;
+		}
+
+		mad_write(MC8_PORT, tmp);	/* write MPU port parameters */
+		goto probe_401;
+#endif
+	}
+	tmp = mad_read(MC6_PORT) & 0x83;
+	tmp |= 0x80;		/* MPU-401 enable */
+
+	/* Set the MPU base bits */
+
+	switch (hw_config->io_base)
+	{
+		case 0x300:
+			tmp |= 0x60;
+			break;
+		case 0x310:
+			tmp |= 0x40;
+			break;
+		case 0x320:
+			tmp |= 0x20;
+			break;
+		case 0x330:
+			tmp |= 0x00;
+			break;
+		default:
+			printk(KERN_ERR "MAD16: Invalid MIDI port 0x%x\n", hw_config->io_base);
+			return 0;
+	}
+
+	/* Set the MPU IRQ bits */
+
+	switch (hw_config->irq)
+	{
+		case 5:
+			tmp |= 0x10;
+			break;
+		case 7:
+			tmp |= 0x18;
+			break;
+		case 9:
+			tmp |= 0x00;
+			break;
+		case 10:
+			tmp |= 0x08;
+			break;
+		default:
+			printk(KERN_ERR "MAD16: Invalid MIDI IRQ %d\n", hw_config->irq);
+			break;
+	}
+			
+	mad_write(MC6_PORT, tmp);	/* Write MPU401 config */
+
+#ifndef CONFIG_MAD16_OLDCARD
+probe_401:
+#endif
+	hw_config->driver_use_1 = SB_MIDI_ONLY;
+	hw_config->name = "Mad16/Mozart";
+	return probe_uart401(hw_config, THIS_MODULE);
+}
+
+static void __exit unload_mad16(struct address_info *hw_config)
+{
+	ad1848_unload(hw_config->io_base + 4,
+			hw_config->irq,
+			hw_config->dma,
+			hw_config->dma2, 0);
+	release_region(hw_config->io_base, 4);
+	sound_unload_audiodev(hw_config->slots[0]);
+}
+
+static void __exit unload_mad16_mpu(struct address_info *hw_config)
+{
+#ifdef CONFIG_MAD16_OLDCARD
+	if (board_type < C929)	/* Early chip. No MPU support. Just SB MIDI */
+	{
+		sb_dsp_unload(hw_config, 0);
+		return;
+	}
+#endif
+
+	unload_uart401(hw_config);
+}
+
+static struct address_info cfg;
+static struct address_info cfg_mpu;
+
+static int found_mpu;
+
+static int __initdata mpu_io = 0;
+static int __initdata mpu_irq = 0;
+static int __initdata io = -1;
+static int __initdata dma = -1;
+static int __initdata dma16 = -1; /* Set this for modules that need it */
+static int __initdata irq = -1;
+static int __initdata cdtype = 0;
+static int __initdata cdirq = 0;
+static int __initdata cdport = 0x340;
+static int __initdata cddma = -1;
+static int __initdata opl4 = 0;
+static int __initdata joystick = 0;
+
+module_param(mpu_io, int, 0);
+module_param(mpu_irq, int, 0);
+module_param(io, int, 0);
+module_param(dma, int, 0);
+module_param(dma16, int, 0);
+module_param(irq, int, 0);
+module_param(cdtype, int, 0);
+module_param(cdirq, int, 0);
+module_param(cdport, int, 0);
+module_param(cddma, int, 0);
+module_param(opl4, int, 0);
+module_param(joystick, bool, 0);
+module_param(debug, bool, 0644);
+
+static int __initdata dma_map[2][8] =
+{
+	{0x03, -1, -1, -1, -1, 0x00, 0x01, 0x02},
+	{0x03, -1, 0x01, 0x00, -1, -1, -1, -1}
+};
+
+static int __initdata irq_map[16] =
+{
+	0x00, -1, -1, 0x0A,
+	-1, 0x04, -1, 0x08,
+	-1, 0x10, 0x14, 0x18,
+	-1, -1, -1, -1
+};
+
+static int __devinit mad16_register_gameport(int io_port)
+{
+	if (!request_region(io_port, 1, "mad16 gameport")) {
+		printk(KERN_ERR "mad16: gameport address 0x%#x already in use\n", io_port);
+		return -EBUSY;
+	}
+
+	gameport = gameport_allocate_port();
+	if (!gameport) {
+		printk(KERN_ERR "mad16: can not allocate memory for gameport\n");
+		release_region(io_port, 1);
+		return -ENOMEM;
+	}
+
+	gameport_set_name(gameport, "MAD16 Gameport");
+	gameport_set_phys(gameport, "isa%04x/gameport0", io_port);
+	gameport->io = io_port;
+
+	gameport_register_port(gameport);
+
+	return 0;
+}
+
+static int __devinit init_mad16(void)
+{
+	int dmatype = 0;
+
+	printk(KERN_INFO "MAD16 audio driver Copyright (C) by Hannu Savolainen 1993-1996\n");
+
+	printk(KERN_INFO "CDROM ");
+	switch (cdtype)
+	{
+		case 0x00:
+			printk("Disabled");
+			cdirq = 0;
+			break;
+		case 0x02:
+			printk("Sony CDU31A");
+			dmatype = 1;
+			if(cddma == -1) cddma = 3;
+			break;
+		case 0x04:
+			printk("Mitsumi");
+			dmatype = 0;
+			if(cddma == -1) cddma = 5;
+			break;
+		case 0x06:
+			printk("Panasonic Lasermate");
+			dmatype = 1;
+			if(cddma == -1) cddma = 3;
+			break;
+		case 0x08:
+			printk("Secondary IDE");
+			dmatype = 0;
+			if(cddma == -1) cddma = 5;
+			break;
+		case 0x0A:
+			printk("Primary IDE");
+			dmatype = 0;
+			if(cddma == -1) cddma = 5;
+			break;
+		default:
+			printk("\n");
+			printk(KERN_ERR "Invalid CDROM type\n");
+			return -EINVAL;
+	}
+
+	/*
+	 *    Build the config words
+	 */
+
+	mad16_conf = (joystick ^ 1) | cdtype;
+	mad16_cdsel = 0;
+	if (opl4)
+		mad16_cdsel |= 0x20;
+
+	if(cdtype){
+		if (cddma > 7 || cddma < 0 || dma_map[dmatype][cddma] == -1)
+		{
+			printk("\n");
+			printk(KERN_ERR "Invalid CDROM DMA\n");
+			return -EINVAL;
+		}
+		if (cddma)
+			printk(", DMA %d", cddma);
+		else
+			printk(", no DMA");
+
+		if (!cdirq)
+			printk(", no IRQ");
+		else if (cdirq < 0 || cdirq > 15 || irq_map[cdirq] == -1)
+		{
+			printk(", invalid IRQ (disabling)");
+			cdirq = 0;
+		}
+		else printk(", IRQ %d", cdirq);
+
+		mad16_cdsel |= dma_map[dmatype][cddma];
+
+		if (cdtype < 0x08)
+		{
+			switch (cdport)
+			{
+				case 0x340:
+					mad16_cdsel |= 0x00;
+					break;
+				case 0x330:
+					mad16_cdsel |= 0x40;
+					break;
+				case 0x360:
+					mad16_cdsel |= 0x80;
+					break;
+				case 0x320:
+					mad16_cdsel |= 0xC0;
+					break;
+				default:
+					printk(KERN_ERR "Unknown CDROM I/O base %d\n", cdport);
+					return -EINVAL;
+			}
+		}
+		mad16_cdsel |= irq_map[cdirq];
+	}
+
+	printk(".\n");
+
+	cfg.io_base = io;
+	cfg.irq = irq;
+	cfg.dma = dma;
+	cfg.dma2 = dma16;
+
+	if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
+		printk(KERN_ERR "I/O, DMA and irq are mandatory\n");
+		return -EINVAL;
+	}
+
+	if (!request_region(MC0_PORT, 12, "mad16"))
+		return -EBUSY;
+
+	if (!probe_mad16(&cfg)) {
+		release_region(MC0_PORT, 12);
+		return -ENODEV;
+	}
+
+	cfg_mpu.io_base = mpu_io;
+	cfg_mpu.irq = mpu_irq;
+
+	found_mpu = probe_mad16_mpu(&cfg_mpu);
+
+	if (joystick)
+		mad16_register_gameport(0x201);
+
+	return 0;
+}
+
+static void __exit cleanup_mad16(void)
+{
+	if (found_mpu)
+		unload_mad16_mpu(&cfg_mpu);
+	if (gameport) {
+		/* the gameport was initialized so we must free it up */
+		gameport_unregister_port(gameport);
+		gameport = NULL;
+		release_region(0x201, 1);
+	}
+	unload_mad16(&cfg);
+	release_region(MC0_PORT, 12);
+}
+
+module_init(init_mad16);
+module_exit(cleanup_mad16);
+
+#ifndef MODULE
+static int __init setup_mad16(char *str)
+{
+	/* io, irq */
+	int ints[8];
+
+	str = get_options(str, ARRAY_SIZE(ints), ints);
+
+	io	 = ints[1];
+	irq	 = ints[2];
+	dma	 = ints[3];
+	dma16	 = ints[4];
+	mpu_io	 = ints[5];
+	mpu_irq  = ints[6];
+	joystick = ints[7];
+
+	return 1;
+}
+
+__setup("mad16=", setup_mad16);
+#endif
+MODULE_LICENSE("GPL");