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root/sound/oss/trix.c

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DEFINITIONS

This source file includes following definitions.
  1. trix_read
  2. trix_write
  3. download_boot
  4. trix_set_wss_port
  5. init_trix_wss
  6. probe_trix_sb
  7. probe_trix_mpu
  8. unload_trix_wss
  9. unload_trix_mpu
  10. unload_trix_sb
  11. init_trix
  12. cleanup_trix
  13. setup_trix

/*
 * sound/oss/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");

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