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 000000000000..d1f1f154dcce
--- /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");