/*
* sound/oss/maui.c
*
* The low level driver for Turtle Beach Maui and Tropez.
*
*
* 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 General clean up, use kernel IRQ
* system
* Christoph Hellwig Adapted to module_init/module_exit
* Bartlomiej Zolnierkiewicz
* Added __init to download_code()
*
* Status:
* Andrew J. Kroll Tested 06/01/1999 with:
* * OSWF.MOT File Version: 1.15
* * OSWF.MOT File Dated: 09/12/94
* * Older versions will cause problems.
*/
#include <linux/interrupt.h>
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#define USE_SEQ_MACROS
#define USE_SIMPLE_MACROS
#include "sound_config.h"
#include "sound_firmware.h"
#include "mpu401.h"
static int maui_base = 0x330;
static volatile int irq_ok;
static int *maui_osp;
#define HOST_DATA_PORT (maui_base + 2)
#define HOST_STAT_PORT (maui_base + 3)
#define HOST_CTRL_PORT (maui_base + 3)
#define STAT_TX_INTR 0x40
#define STAT_TX_AVAIL 0x20
#define STAT_TX_IENA 0x10
#define STAT_RX_INTR 0x04
#define STAT_RX_AVAIL 0x02
#define STAT_RX_IENA 0x01
static int (*orig_load_patch)(int dev, int format, const char __user *addr,
int offs, int count, int pmgr_flag) = NULL;
#include "maui_boot.h"
static int maui_wait(int mask)
{
int i;
/*
* Perform a short initial wait without sleeping
*/
for (i = 0; i < 100; i++)
if (inb(HOST_STAT_PORT) & mask)
return 1;
/*
* Wait up to 15 seconds with sleeping
*/
for (i = 0; i < 150; i++) {
if (inb(HOST_STAT_PORT) & mask)
return 1;
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(HZ / 10);
if (signal_pending(current))
return 0;
}
return 0;
}
static int maui_read(void)
{
if (maui_wait(STAT_RX_AVAIL))
return inb(HOST_DATA_PORT);
return -1;
}
static int maui_write(unsigned char data)
{
if (maui_wait(STAT_TX_AVAIL)) {
outb((data), HOST_DATA_PORT);
return 1;
}
printk(KERN_WARNING "Maui: Write timeout\n");
return 0;
}
static irqreturn_t mauiintr(int irq, void *dev_id, struct pt_regs *dummy)
{
irq_ok = 1;
return IRQ_HANDLED;
}
static int __init download_code(void)
{
int i, lines = 0;
int eol_seen = 0, done = 0;
int skip = 1;
printk(KERN_INFO "Code download (%d bytes): ", maui_osLen);
for (i = 0; i < maui_osLen; i++) {
if (maui_os[i] != '\r') {
if (!skip || (maui_os[i] == 'S' && (i == 0 || maui_os[i - 1] == '\n'))) {
skip = 0;
if (maui_os[i] == '\n')
eol_seen = skip = 1;
else if (maui_os[i] == 'S') {
if (maui_os[i + 1] == '8')
done = 1;
if (!maui_write(0xF1))
goto failure;
if (!maui_write('S'))
goto failure;
} else {
if (!maui_write(maui_os[i]))
goto failure;
}
if (eol_seen) {
int c = 0;
int n;
eol_seen = 0;
for (n = 0; n < 2; n++) {
if (maui_wait(STAT_RX_AVAIL)) {
c = inb(HOST_DATA_PORT);
break;
}
}
if (c != 0x80) {
printk("Download not acknowledged\n");
return 0;
}
else if (!(lines++ % 10))
printk(".");
if (done) {
printk("\n");
printk(KERN_INFO "Download complete\n");
return 1;
}
}
}
}
}
failure:
printk("\n");
printk(KERN_ERR "Download failed!!!\n");
return 0;
}
static int __init maui_init(int irq)
{
unsigned char bits;
switch (irq) {
case 9:
bits = 0x00;
break;
case 5:
bits = 0x08;
break;
case 12:
bits = 0x10;
break;
case 15:
bits = 0x18;
break;
default:
printk(KERN_ERR "Maui: Invalid IRQ %d\n", irq);
return 0;
}
outb((0x00), HOST_CTRL_PORT); /* Reset */
outb((bits), HOST_DATA_PORT); /* Set the IRQ bits */
outb((bits | 0x80), HOST_DATA_PORT); /* Set the IRQ bits again? */
outb((0x80), HOST_CTRL_PORT); /* Leave reset */
outb((0x80), HOST_CTRL_PORT); /* Leave reset */
outb((0xD0), HOST_CTRL_PORT); /* Cause interrupt */
#ifdef CONFIG_SMP
{
int i;
for (i = 0; i < 1000000 && !irq_ok; i++)
;
if (!irq_ok)
return 0;
}
#endif
outb((0x80), HOST_CTRL_PORT); /* Leave reset */
printk(KERN_INFO "Turtle Beach Maui initialization\n");
if (!download_code())
return 0;
outb((0xE0), HOST_CTRL_PORT); /* Normal operation */
/* Select mpu401 mode */
maui_write(0xf0);
maui_write(1);
if (maui_read() != 0x80) {
maui_write(0xf0);
maui_write(1);
if (maui_read() != 0x80)
printk(KERN_ERR "Maui didn't acknowledge set HW mode command\n");
}
printk(KERN_INFO "Maui initialized OK\n");
return 1;
}
static int maui_short_wait(int mask) {
int i;
for (i = 0; i < 1000; i++) {
if (inb(HOST_STAT_PORT) & mask) {
return 1;
}
}
return 0;
}
static int maui_load_patch(int dev, int format, const char __user *addr,
int offs, int count, int pmgr_flag)
{
struct sysex_info header;
unsigned long left, src_offs;
int hdr_size = (unsigned long) &header.data[0] - (unsigned long) &header;
int i;
if (format == SYSEX_PATCH) /* Handled by midi_synth.c */
return orig_load_patch(dev, format, addr, offs, count, pmgr_flag);
if (format != MAUI_PATCH)
{
printk(KERN_WARNING "Maui: Unknown patch format\n");
}
if (count < hdr_size) {
/* printk("Maui error: Patch header too short\n");*/
return -EINVAL;
}
count -= hdr_size;
/*
* Copy the header from user space but ignore the first bytes which have
* been transferred already.
*/
if(copy_from_user(&((char *) &header)[offs], &(addr)[offs], hdr_size - offs))
return -EFAULT;
if (count < header.len) {
printk(KERN_ERR "Maui warning: Host command record too short (%d<%d)\n", count, (int) header.len);
header.len = count;
}
left = header.len;
src_offs = 0;
for (i = 0; i < left; i++) {
unsigned char data;
if(get_user(*(unsigned char *) &data, (unsigned char __user *) &((addr)[hdr_size + i])))
return -EFAULT;
if (i == 0 && !(data & 0x80))
return -EINVAL;
if (maui_write(data) == -1)
return -EIO;
}
if ((i = maui_read()) != 0x80) {
if (i != -1)
printk("Maui: Error status %02x\n", i);
return -EIO;
}
return 0;
}
static int __init probe_maui(struct address_info *hw_config)
{
struct resource *ports;
int this_dev;
int i;
int tmp1, tmp2, ret;
ports = request_region(hw_config->io_base, 2, "mpu401");
if (!ports)
return 0;
if (!request_region(hw_config->io_base + 2, 6, "Maui"))
goto out;
maui_base = hw_config->io_base;
maui_osp = hw_config->osp;
if (request_irq(hw_config->irq, mauiintr, 0, "Maui", NULL) < 0)
goto out2;
/*
* Initialize the processor if necessary
*/
if (maui_osLen > 0) {
if (!(inb(HOST_STAT_PORT) & STAT_TX_AVAIL) ||
!maui_write(0x9F) || /* Report firmware version */
!maui_short_wait(STAT_RX_AVAIL) ||
maui_read() == -1 || maui_read() == -1)
if (!maui_init(hw_config->irq))
goto out3;
}
if (!maui_write(0xCF)) /* Report hardware version */ {
printk(KERN_ERR "No WaveFront firmware detected (card uninitialized?)\n");
goto out3;
}
if ((tmp1 = maui_read()) == -1 || (tmp2 = maui_read()) == -1) {
printk(KERN_ERR "No WaveFront firmware detected (card uninitialized?)\n");
goto out3;
}
if (tmp1 == 0xff || tmp2 == 0xff)
goto out3;
printk(KERN_DEBUG "WaveFront hardware version %d.%d\n", tmp1, tmp2);
if (!maui_write(0x9F)) /* Report firmware version */
goto out3;
if ((tmp1 = maui_read()) == -1 || (tmp2 = maui_read()) == -1)
goto out3;
printk(KERN_DEBUG "WaveFront firmware version %d.%d\n", tmp1, tmp2);
if (!maui_write(0x85)) /* Report free DRAM */
goto out3;
tmp1 = 0;
for (i = 0; i < 4; i++) {
tmp1 |= maui_read() << (7 * i);
}
printk(KERN_DEBUG "Available DRAM %dk\n", tmp1 / 1024);
for (i = 0; i < 1000; i++)
if (probe_mpu401(hw_config, ports))
break;
ret = probe_mpu401(hw_config, ports);
if (!ret)
goto out3;
conf_printf("Maui", hw_config);
hw_config->irq *= -1;
hw_config->name = "Maui";
attach_mpu401(hw_config, THIS_MODULE);
if (hw_config->slots[1] != -1) /* The MPU401 driver installed itself */ {
struct synth_operations *synth;
this_dev = hw_config->slots[1];
/*
* Intercept patch loading calls so that they can be handled
* by the Maui driver.
*/
synth = midi_devs[this_dev]->converter;
if (synth != NULL) {
synth->id = "MAUI";
orig_load_patch = synth->load_patch;
synth->load_patch = &maui_load_patch;
} else
printk(KERN_ERR "Maui: Can't install patch loader\n");
}
return 1;
out3:
free_irq(hw_config->irq, NULL);
out2:
release_region(hw_config->io_base + 2, 6);
out:
release_region(hw_config->io_base, 2);
return 0;
}
static void __exit unload_maui(struct address_info *hw_config)
{
int irq = hw_config->irq;
release_region(hw_config->io_base + 2, 6);
unload_mpu401(hw_config);
if (irq < 0)
irq = -irq;
if (irq > 0)
free_irq(irq, NULL);
}
static int fw_load;
static struct address_info cfg;
static int __initdata io = -1;
static int __initdata irq = -1;
module_param(io, int, 0);
module_param(irq, int, 0);
/*
* Install a Maui card. Needs mpu401 loaded already.
*/
static int __init init_maui(void)
{
printk(KERN_INFO "Turtle beach Maui and Tropez driver, Copyright (C) by Hannu Savolainen 1993-1996\n");
cfg.io_base = io;
cfg.irq = irq;
if (cfg.io_base == -1 || cfg.irq == -1) {
printk(KERN_INFO "maui: irq and io must be set.\n");
return -EINVAL;
}
if (maui_os == NULL) {
fw_load = 1;
maui_osLen = mod_firmware_load("/etc/sound/oswf.mot", (char **) &maui_os);
}
if (probe_maui(&cfg) == 0)
return -ENODEV;
return 0;
}
static void __exit cleanup_maui(void)
{
if (fw_load && maui_os)
vfree(maui_os);
unload_maui(&cfg);
}
module_init(init_maui);
module_exit(cleanup_maui);
#ifndef MODULE
static int __init setup_maui(char *str)
{
/* io, irq */
int ints[3];
str = get_options(str, ARRAY_SIZE(ints), ints);
io = ints[1];
irq = ints[2];
return 1;
}
__setup("maui=", setup_maui);
#endif
MODULE_LICENSE("GPL");
