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, 525 insertions, 0 deletions

diff --git a/sound/oss/trix.c b/sound/oss/trix.c
new file mode 100644
index 0000000..d1f1f15
--- /dev/null
+++ b/sound/oss/trix.c
@@ -0,0 +1,525 @@
+/*
+ * sound/trix.c
+ *
+ * Low level driver for the MediaTrix AudioTrix Pro
+ * (MT-0002-PC Control Chip)
+ *
+ *
+ * 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.
+ *
+ * Changes
+ *	Alan Cox		Modularisation, cleanup.
+ *	Christoph Hellwig	Adapted to module_init/module_exit
+ *	Arnaldo C. de Melo	Got rid of attach_uart401
+ */
+ 
+#include <linux/init.h>
+#include <linux/module.h>
+
+#include "sound_config.h"
+#include "sb.h"
+#include "sound_firmware.h"
+
+#include "ad1848.h"
+#include "mpu401.h"
+
+#include "trix_boot.h"
+
+static int mpu;
+
+static int joystick;
+
+static unsigned char trix_read(int addr)
+{
+	outb(((unsigned char) addr), 0x390);	/* MT-0002-PC ASIC address */
+	return inb(0x391);	/* MT-0002-PC ASIC data */
+}
+
+static void trix_write(int addr, int data)
+{
+	outb(((unsigned char) addr), 0x390);	/* MT-0002-PC ASIC address */
+	outb(((unsigned char) data), 0x391);	/* MT-0002-PC ASIC data */
+}
+
+static void download_boot(int base)
+{
+	int i = 0, n = trix_boot_len;
+
+	if (trix_boot_len == 0)
+		return;
+
+	trix_write(0xf8, 0x00);	/* ??????? */
+	outb((0x01), base + 6);	/* Clear the internal data pointer */
+	outb((0x00), base + 6);	/* Restart */
+
+	/*
+	   *  Write the boot code to the RAM upload/download register.
+	   *  Each write increments the internal data pointer.
+	 */
+	outb((0x01), base + 6);	/* Clear the internal data pointer */
+	outb((0x1A), 0x390);	/* Select RAM download/upload port */
+
+	for (i = 0; i < n; i++)
+		outb((trix_boot[i]), 0x391);
+	for (i = n; i < 10016; i++)	/* Clear up to first 16 bytes of data RAM */
+		outb((0x00), 0x391);
+	outb((0x00), base + 6);	/* Reset */
+	outb((0x50), 0x390);	/* ?????? */
+
+}
+
+static int trix_set_wss_port(struct address_info *hw_config)
+{
+	unsigned char   addr_bits;
+
+	if (trix_read(0x15) != 0x71)	/* No ASIC signature */
+	{
+		MDB(printk(KERN_ERR "No AudioTrix ASIC signature found\n"));
+		return 0;
+	}
+
+	/*
+	 * Reset some registers.
+	 */
+
+	trix_write(0x13, 0);
+	trix_write(0x14, 0);
+
+	/*
+	 * Configure the ASIC to place the codec to the proper I/O location
+	 */
+
+	switch (hw_config->io_base)
+	{
+		case 0x530:
+			addr_bits = 0;
+			break;
+		case 0x604:
+			addr_bits = 1;
+			break;
+		case 0xE80:
+			addr_bits = 2;
+			break;
+		case 0xF40:
+			addr_bits = 3;
+			break;
+		default:
+			return 0;
+	}
+
+	trix_write(0x19, (trix_read(0x19) & 0x03) | addr_bits);
+	return 1;
+}
+
+/*
+ *    Probe and attach routines for the Windows Sound System mode of
+ *      AudioTrix Pro
+ */
+
+static int __init init_trix_wss(struct address_info *hw_config)
+{
+	static unsigned char dma_bits[4] = {
+		1, 2, 0, 3
+	};
+	struct resource *ports;
+	int config_port = hw_config->io_base + 0;
+	int dma1 = hw_config->dma, dma2 = hw_config->dma2;
+	int old_num_mixers = num_mixers;
+	u8 config, bits;
+	int ret;
+ 
+	switch(hw_config->irq) {
+	case 7:
+		bits = 8;
+		break;
+	case 9:
+		bits = 0x10;
+		break;
+	case 10:
+		bits = 0x18;
+		break;
+	case 11:
+		bits = 0x20;
+		break;
+	default:
+		printk(KERN_ERR "AudioTrix: Bad WSS IRQ %d\n", hw_config->irq);
+		return 0;
+	}
+
+	switch (dma1) {
+	case 0:
+	case 1:
+	case 3:
+		break;
+	default:
+		printk(KERN_ERR "AudioTrix: Bad WSS DMA %d\n", dma1);
+		return 0;
+	}
+
+	switch (dma2) {
+	case -1:
+	case 0:
+	case 1:
+	case 3:
+		break;
+	default:
+		printk(KERN_ERR "AudioTrix: Bad capture DMA %d\n", dma2);
+		return 0;
+	}
+
+	/*
+	 * Check if the IO port returns valid signature. The original MS Sound
+	 * system returns 0x04 while some cards (AudioTrix Pro for example)
+	 * return 0x00.
+	 */
+	ports = request_region(hw_config->io_base + 4, 4, "ad1848");
+	if (!ports) {
+		printk(KERN_ERR "AudioTrix: MSS I/O port conflict (%x)\n", hw_config->io_base);
+		return 0;
+	}
+
+	if (!request_region(hw_config->io_base, 4, "MSS config")) {
+		printk(KERN_ERR "AudioTrix: MSS I/O port conflict (%x)\n", hw_config->io_base);
+		release_region(hw_config->io_base + 4, 4);
+		return 0;
+	}
+
+	if (!trix_set_wss_port(hw_config))
+		goto fail;
+
+	config = inb(hw_config->io_base + 3);
+
+	if ((config & 0x3f) != 0x00)
+	{
+		MDB(printk(KERN_ERR "No MSS signature detected on port 0x%x\n", hw_config->io_base));
+		goto fail;
+	}
+
+	/*
+	 * Check that DMA0 is not in use with a 8 bit board.
+	 */
+
+	if (dma1 == 0 && config & 0x80)
+	{
+		printk(KERN_ERR "AudioTrix: Can't use DMA0 with a 8 bit card slot\n");
+		goto fail;
+	}
+	if (hw_config->irq > 9 && config & 0x80)
+	{
+		printk(KERN_ERR "AudioTrix: Can't use IRQ%d with a 8 bit card slot\n", hw_config->irq);
+		goto fail;
+	}
+
+	ret = ad1848_detect(ports, NULL, hw_config->osp);
+	if (!ret)
+		goto fail;
+
+	if (joystick==1)
+		trix_write(0x15, 0x80);
+
+	/*
+	 * Set the IRQ and DMA addresses.
+	 */
+
+	outb((bits | 0x40), config_port);
+
+	if (dma2 == -1 || dma2 == dma1)
+	{
+		  bits |= dma_bits[dma1];
+		  dma2 = dma1;
+	}
+	else
+	{
+		unsigned char tmp;
+
+		tmp = trix_read(0x13) & ~30;
+		trix_write(0x13, tmp | 0x80 | (dma1 << 4));
+
+		tmp = trix_read(0x14) & ~30;
+		trix_write(0x14, tmp | 0x80 | (dma2 << 4));
+	}
+
+	outb((bits), config_port);	/* Write IRQ+DMA setup */
+
+	hw_config->slots[0] = ad1848_init("AudioTrix Pro", ports,
+					  hw_config->irq,
+					  dma1,
+					  dma2,
+					  0,
+					  hw_config->osp,
+					  THIS_MODULE);
+
+	if (num_mixers > old_num_mixers)	/* Mixer got installed */
+	{
+		AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE);	/* Line in */
+		AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD);
+		AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH);		/* OPL4 */
+		AD1848_REROUTE(SOUND_MIXER_SPEAKER, SOUND_MIXER_ALTPCM);	/* SB */
+	}
+	return 1;
+
+fail:
+	release_region(hw_config->io_base, 4);
+	release_region(hw_config->io_base + 4, 4);
+	return 0;
+}
+
+static int __init probe_trix_sb(struct address_info *hw_config)
+{
+
+	int tmp;
+	unsigned char conf;
+	extern int sb_be_quiet;
+	int old_quiet;
+	static signed char irq_translate[] = {
+		-1, -1, -1, 0, 1, 2, -1, 3
+	};
+
+	if (trix_boot_len == 0)
+		return 0;	/* No boot code -> no fun */
+
+	if ((hw_config->io_base & 0xffffff8f) != 0x200)
+		return 0;
+
+	tmp = hw_config->irq;
+	if (tmp > 7)
+		return 0;
+	if (irq_translate[tmp] == -1)
+		return 0;
+
+	tmp = hw_config->dma;
+	if (tmp != 1 && tmp != 3)
+		return 0;
+
+	if (!request_region(hw_config->io_base, 16, "soundblaster")) {
+		printk(KERN_ERR "AudioTrix: SB I/O port conflict (%x)\n", hw_config->io_base);
+		return 0;
+	}
+
+	conf = 0x84;		/* DMA and IRQ enable */
+	conf |= hw_config->io_base & 0x70;	/* I/O address bits */
+	conf |= irq_translate[hw_config->irq];
+	if (hw_config->dma == 3)
+		conf |= 0x08;
+	trix_write(0x1b, conf);
+
+	download_boot(hw_config->io_base);
+
+	hw_config->name = "AudioTrix SB";
+	if (!sb_dsp_detect(hw_config, 0, 0, NULL)) {
+		release_region(hw_config->io_base, 16);
+		return 0;
+	}
+
+	hw_config->driver_use_1 = SB_NO_MIDI | SB_NO_MIXER | SB_NO_RECORDING;
+
+	/* Prevent false alarms */
+	old_quiet = sb_be_quiet;
+	sb_be_quiet = 1;
+
+	sb_dsp_init(hw_config, THIS_MODULE);
+
+	sb_be_quiet = old_quiet;
+	return 1;
+}
+
+static int __init probe_trix_mpu(struct address_info *hw_config)
+{
+	unsigned char conf;
+	static int irq_bits[] = {
+		-1, -1, -1, 1, 2, 3, -1, 4, -1, 5
+	};
+
+	if (hw_config->irq > 9)
+	{
+		printk(KERN_ERR "AudioTrix: Bad MPU IRQ %d\n", hw_config->irq);
+		return 0;
+	}
+	if (irq_bits[hw_config->irq] == -1)
+	{
+		printk(KERN_ERR "AudioTrix: Bad MPU IRQ %d\n", hw_config->irq);
+		return 0;
+	}
+	switch (hw_config->io_base)
+	{
+		case 0x330:
+			conf = 0x00;
+			break;
+		case 0x370:
+			conf = 0x04;
+			break;
+		case 0x3b0:
+			conf = 0x08;
+			break;
+		case 0x3f0:
+			conf = 0x0c;
+			break;
+		default:
+			return 0;	/* Invalid port */
+	}
+
+	conf |= irq_bits[hw_config->irq] << 4;
+	trix_write(0x19, (trix_read(0x19) & 0x83) | conf);
+	hw_config->name = "AudioTrix Pro";
+	return probe_uart401(hw_config, THIS_MODULE);
+}
+
+static void __exit unload_trix_wss(struct address_info *hw_config)
+{
+	int dma2 = hw_config->dma2;
+
+	if (dma2 == -1)
+		dma2 = hw_config->dma;
+
+	release_region(0x390, 2);
+	release_region(hw_config->io_base, 4);
+
+	ad1848_unload(hw_config->io_base + 4,
+		      hw_config->irq,
+		      hw_config->dma,
+		      dma2,
+		      0);
+	sound_unload_audiodev(hw_config->slots[0]);
+}
+
+static inline void __exit unload_trix_mpu(struct address_info *hw_config)
+{
+	unload_uart401(hw_config);
+}
+
+static inline void __exit unload_trix_sb(struct address_info *hw_config)
+{
+	sb_dsp_unload(hw_config, mpu);
+}
+
+static struct address_info cfg;
+static struct address_info cfg2;
+static struct address_info cfg_mpu;
+
+static int sb;
+static int fw_load;
+
+static int __initdata io	= -1;
+static int __initdata irq	= -1;
+static int __initdata dma	= -1;
+static int __initdata dma2	= -1;	/* Set this for modules that need it */
+static int __initdata sb_io	= -1;
+static int __initdata sb_dma	= -1;
+static int __initdata sb_irq	= -1;
+static int __initdata mpu_io	= -1;
+static int __initdata mpu_irq	= -1;
+
+module_param(io, int, 0);
+module_param(irq, int, 0);
+module_param(dma, int, 0);
+module_param(dma2, int, 0);
+module_param(sb_io, int, 0);
+module_param(sb_dma, int, 0);
+module_param(sb_irq, int, 0);
+module_param(mpu_io, int, 0);
+module_param(mpu_irq, int, 0);
+module_param(joystick, bool, 0);
+
+static int __init init_trix(void)
+{
+	printk(KERN_INFO "MediaTrix audio driver Copyright (C) by Hannu Savolainen 1993-1996\n");
+
+	cfg.io_base = io;
+	cfg.irq = irq;
+	cfg.dma = dma;
+	cfg.dma2 = dma2;
+
+	cfg2.io_base = sb_io;
+	cfg2.irq = sb_irq;
+	cfg2.dma = sb_dma;
+
+	cfg_mpu.io_base = mpu_io;
+	cfg_mpu.irq = mpu_irq;
+
+	if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) {
+		printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n");
+		return -EINVAL;
+	}
+
+	if (cfg2.io_base != -1 && (cfg2.irq == -1 || cfg2.dma == -1)) {
+		printk(KERN_INFO "CONFIG_SB_IRQ and CONFIG_SB_DMA must be specified if SB_IO is set.\n");
+		return -EINVAL;
+	}
+	if (cfg_mpu.io_base != -1 && cfg_mpu.irq == -1) {
+		printk(KERN_INFO "CONFIG_MPU_IRQ must be specified if MPU_IO is set.\n");
+		return -EINVAL;
+	}
+	if (!trix_boot)
+	{
+		fw_load = 1;
+		trix_boot_len = mod_firmware_load("/etc/sound/trxpro.bin",
+						    (char **) &trix_boot);
+	}
+
+	if (!request_region(0x390, 2, "AudioTrix")) {
+		printk(KERN_ERR "AudioTrix: Config port I/O conflict\n");
+		return -ENODEV;
+	}
+
+	if (!init_trix_wss(&cfg)) {
+		release_region(0x390, 2);
+		return -ENODEV;
+	}
+
+	/*
+	 *    We must attach in the right order to get the firmware
+	 *      loaded up in time.
+	 */
+
+	if (cfg2.io_base != -1) {
+		sb = probe_trix_sb(&cfg2);
+	}
+	
+	if (cfg_mpu.io_base != -1)
+		mpu = probe_trix_mpu(&cfg_mpu);
+
+	return 0;
+}
+
+static void __exit cleanup_trix(void)
+{
+	if (fw_load && trix_boot)
+		vfree(trix_boot);
+	if (sb)
+		unload_trix_sb(&cfg2);
+	if (mpu)
+		unload_trix_mpu(&cfg_mpu);
+	unload_trix_wss(&cfg);
+}
+
+module_init(init_trix);
+module_exit(cleanup_trix);
+
+#ifndef MODULE
+static int __init setup_trix (char *str)
+{
+	/* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, mpu_io, mpu_irq */
+	int ints[9];
+	
+	str = get_options(str, ARRAY_SIZE(ints), ints);
+
+	io	= ints[1];
+	irq	= ints[2];
+	dma	= ints[3];
+	dma2	= ints[4];
+	sb_io	= ints[5];
+	sb_irq	= ints[6];
+	sb_dma	= ints[6];
+	mpu_io	= ints[7];
+	mpu_irq	= ints[8];
+
+	return 1;
+}
+
+__setup("trix=", setup_trix);
+#endif
+MODULE_LICENSE("GPL");