mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 05:02:12 +00:00
1da177e4c3
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!
330 lines
6.5 KiB
C
330 lines
6.5 KiB
C
/*
|
|
* sound/opl3sa.c
|
|
*
|
|
* Low level driver for Yamaha YMF701B aka OPL3-SA 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
|
|
* Christoph Hellwig Adapted to module_init/module_exit
|
|
* Arnaldo C. de Melo got rid of attach_uart401
|
|
*
|
|
* FIXME:
|
|
* Check for install of mpu etc is wrong, should check result of the mss stuff
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/spinlock.h>
|
|
|
|
#undef SB_OK
|
|
|
|
#include "sound_config.h"
|
|
|
|
#include "ad1848.h"
|
|
#include "mpu401.h"
|
|
|
|
#ifdef SB_OK
|
|
#include "sb.h"
|
|
static int sb_initialized;
|
|
#endif
|
|
|
|
static DEFINE_SPINLOCK(lock);
|
|
|
|
static unsigned char opl3sa_read(int addr)
|
|
{
|
|
unsigned long flags;
|
|
unsigned char tmp;
|
|
|
|
spin_lock_irqsave(&lock,flags);
|
|
outb((0x1d), 0xf86); /* password */
|
|
outb(((unsigned char) addr), 0xf86); /* address */
|
|
tmp = inb(0xf87); /* data */
|
|
spin_unlock_irqrestore(&lock,flags);
|
|
|
|
return tmp;
|
|
}
|
|
|
|
static void opl3sa_write(int addr, int data)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&lock,flags);
|
|
outb((0x1d), 0xf86); /* password */
|
|
outb(((unsigned char) addr), 0xf86); /* address */
|
|
outb(((unsigned char) data), 0xf87); /* data */
|
|
spin_unlock_irqrestore(&lock,flags);
|
|
}
|
|
|
|
static int __init opl3sa_detect(void)
|
|
{
|
|
int tmp;
|
|
|
|
if (((tmp = opl3sa_read(0x01)) & 0xc4) != 0x04)
|
|
{
|
|
DDB(printk("OPL3-SA detect error 1 (%x)\n", opl3sa_read(0x01)));
|
|
/* return 0; */
|
|
}
|
|
|
|
/*
|
|
* Check that the password feature has any effect
|
|
*/
|
|
|
|
if (inb(0xf87) == tmp)
|
|
{
|
|
DDB(printk("OPL3-SA detect failed 2 (%x/%x)\n", tmp, inb(0xf87)));
|
|
return 0;
|
|
}
|
|
tmp = (opl3sa_read(0x04) & 0xe0) >> 5;
|
|
|
|
if (tmp != 0 && tmp != 1)
|
|
{
|
|
DDB(printk("OPL3-SA detect failed 3 (%d)\n", tmp));
|
|
return 0;
|
|
}
|
|
DDB(printk("OPL3-SA mode %x detected\n", tmp));
|
|
|
|
opl3sa_write(0x01, 0x00); /* Disable MSS */
|
|
opl3sa_write(0x02, 0x00); /* Disable SB */
|
|
opl3sa_write(0x03, 0x00); /* Disable MPU */
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Probe and attach routines for the Windows Sound System mode of
|
|
* OPL3-SA
|
|
*/
|
|
|
|
static int __init probe_opl3sa_wss(struct address_info *hw_config, struct resource *ports)
|
|
{
|
|
unsigned char tmp = 0x24; /* WSS enable */
|
|
|
|
/*
|
|
* Check if the IO port returns valid signature. The original MS Sound
|
|
* system returns 0x04 while some cards (OPL3-SA for example)
|
|
* return 0x00.
|
|
*/
|
|
|
|
if (!opl3sa_detect())
|
|
{
|
|
printk(KERN_ERR "OSS: OPL3-SA chip not found\n");
|
|
return 0;
|
|
}
|
|
|
|
switch (hw_config->io_base)
|
|
{
|
|
case 0x530:
|
|
tmp |= 0x00;
|
|
break;
|
|
case 0xe80:
|
|
tmp |= 0x08;
|
|
break;
|
|
case 0xf40:
|
|
tmp |= 0x10;
|
|
break;
|
|
case 0x604:
|
|
tmp |= 0x18;
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "OSS: Unsupported OPL3-SA/WSS base %x\n", hw_config->io_base);
|
|
return 0;
|
|
}
|
|
|
|
opl3sa_write(0x01, tmp); /* WSS setup register */
|
|
|
|
return probe_ms_sound(hw_config, ports);
|
|
}
|
|
|
|
static void __init attach_opl3sa_wss(struct address_info *hw_config, struct resource *ports)
|
|
{
|
|
int nm = num_mixers;
|
|
|
|
/* FIXME */
|
|
attach_ms_sound(hw_config, ports, THIS_MODULE);
|
|
if (num_mixers > nm) /* A mixer was installed */
|
|
{
|
|
AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_CD);
|
|
AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_SYNTH);
|
|
AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_LINE);
|
|
}
|
|
}
|
|
|
|
|
|
static int __init probe_opl3sa_mpu(struct address_info *hw_config)
|
|
{
|
|
unsigned char conf;
|
|
static signed char irq_bits[] = {
|
|
-1, -1, -1, -1, -1, 1, -1, 2, -1, 3, 4
|
|
};
|
|
|
|
if (hw_config->irq > 10)
|
|
{
|
|
printk(KERN_ERR "OPL3-SA: Bad MPU IRQ %d\n", hw_config->irq);
|
|
return 0;
|
|
}
|
|
if (irq_bits[hw_config->irq] == -1)
|
|
{
|
|
printk(KERN_ERR "OPL3-SA: Bad MPU IRQ %d\n", hw_config->irq);
|
|
return 0;
|
|
}
|
|
switch (hw_config->io_base)
|
|
{
|
|
case 0x330:
|
|
conf = 0x00;
|
|
break;
|
|
case 0x332:
|
|
conf = 0x20;
|
|
break;
|
|
case 0x334:
|
|
conf = 0x40;
|
|
break;
|
|
case 0x300:
|
|
conf = 0x60;
|
|
break;
|
|
default:
|
|
return 0; /* Invalid port */
|
|
}
|
|
|
|
conf |= 0x83; /* MPU & OPL3 (synth) & game port enable */
|
|
conf |= irq_bits[hw_config->irq] << 2;
|
|
|
|
opl3sa_write(0x03, conf);
|
|
|
|
hw_config->name = "OPL3-SA (MPU401)";
|
|
|
|
return probe_uart401(hw_config, THIS_MODULE);
|
|
}
|
|
|
|
static void __exit unload_opl3sa_wss(struct address_info *hw_config)
|
|
{
|
|
int dma2 = hw_config->dma2;
|
|
|
|
if (dma2 == -1)
|
|
dma2 = hw_config->dma;
|
|
|
|
release_region(0xf86, 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_opl3sa_mpu(struct address_info *hw_config)
|
|
{
|
|
unload_uart401(hw_config);
|
|
}
|
|
|
|
#ifdef SB_OK
|
|
static inline void __exit unload_opl3sa_sb(struct address_info *hw_config)
|
|
{
|
|
sb_dsp_unload(hw_config);
|
|
}
|
|
#endif
|
|
|
|
static int found_mpu;
|
|
|
|
static struct address_info cfg;
|
|
static struct address_info cfg_mpu;
|
|
|
|
static int __initdata io = -1;
|
|
static int __initdata irq = -1;
|
|
static int __initdata dma = -1;
|
|
static int __initdata dma2 = -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(mpu_io, int, 0);
|
|
module_param(mpu_irq, int, 0);
|
|
|
|
static int __init init_opl3sa(void)
|
|
{
|
|
struct resource *ports;
|
|
if (io == -1 || irq == -1 || dma == -1) {
|
|
printk(KERN_ERR "opl3sa: dma, irq and io must be set.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
cfg.io_base = io;
|
|
cfg.irq = irq;
|
|
cfg.dma = dma;
|
|
cfg.dma2 = dma2;
|
|
|
|
cfg_mpu.io_base = mpu_io;
|
|
cfg_mpu.irq = mpu_irq;
|
|
|
|
ports = request_region(io + 4, 4, "ad1848");
|
|
if (!ports)
|
|
return -EBUSY;
|
|
|
|
if (!request_region(0xf86, 2, "OPL3-SA"))/* Control port is busy */ {
|
|
release_region(io + 4, 4);
|
|
return 0;
|
|
}
|
|
|
|
if (!request_region(io, 4, "WSS config")) {
|
|
release_region(0x86, 2);
|
|
release_region(io + 4, 4);
|
|
return 0;
|
|
}
|
|
|
|
if (probe_opl3sa_wss(&cfg, ports) == 0) {
|
|
release_region(0xf86, 2);
|
|
release_region(io, 4);
|
|
release_region(io + 4, 4);
|
|
return -ENODEV;
|
|
}
|
|
|
|
found_mpu=probe_opl3sa_mpu(&cfg_mpu);
|
|
|
|
attach_opl3sa_wss(&cfg, ports);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit cleanup_opl3sa(void)
|
|
{
|
|
if(found_mpu)
|
|
unload_opl3sa_mpu(&cfg_mpu);
|
|
unload_opl3sa_wss(&cfg);
|
|
}
|
|
|
|
module_init(init_opl3sa);
|
|
module_exit(cleanup_opl3sa);
|
|
|
|
#ifndef MODULE
|
|
static int __init setup_opl3sa(char *str)
|
|
{
|
|
/* io, irq, dma, dma2, mpu_io, mpu_irq */
|
|
int ints[7];
|
|
|
|
str = get_options(str, ARRAY_SIZE(ints), ints);
|
|
|
|
io = ints[1];
|
|
irq = ints[2];
|
|
dma = ints[3];
|
|
dma2 = ints[4];
|
|
mpu_io = ints[5];
|
|
mpu_irq = ints[6];
|
|
|
|
return 1;
|
|
}
|
|
|
|
__setup("opl3sa=", setup_opl3sa);
|
|
#endif
|
|
MODULE_LICENSE("GPL");
|