- 根目录:
- sound
- oss
- trix.c
/*
* 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 bool 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");