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linux/sound/isa/gus/gus_main.c
Peter Eriksen 377a4f7ea3 [ALSA] sound/isa/gus/gus_main.c: Use abs() instead of x < 0 ? -x : x. 
Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09 09:03:13 +01:00

505 lines
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/*
* Routines for Gravis UltraSound soundcards
* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <sound/core.h>
#include <sound/gus.h>
#include <sound/control.h>
#include <asm/dma.h>
MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards");
MODULE_LICENSE("GPL");
static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches);
int snd_gus_use_inc(struct snd_gus_card * gus)
{
if (!try_module_get(gus->card->module))
return 0;
return 1;
}
void snd_gus_use_dec(struct snd_gus_card * gus)
{
module_put(gus->card->module);
}
static int snd_gus_joystick_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 31;
return 0;
}
static int snd_gus_joystick_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = gus->joystick_dac & 31;
return 0;
}
static int snd_gus_joystick_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int change;
unsigned char nval;
nval = ucontrol->value.integer.value[0] & 31;
spin_lock_irqsave(&gus->reg_lock, flags);
change = gus->joystick_dac != nval;
gus->joystick_dac = nval;
snd_gf1_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
spin_unlock_irqrestore(&gus->reg_lock, flags);
return change;
}
static struct snd_kcontrol_new snd_gus_joystick_control = {
.iface = SNDRV_CTL_ELEM_IFACE_CARD,
.name = "Joystick Speed",
.info = snd_gus_joystick_info,
.get = snd_gus_joystick_get,
.put = snd_gus_joystick_put
};
static void snd_gus_init_control(struct snd_gus_card *gus)
{
if (!gus->ace_flag)
snd_ctl_add(gus->card, snd_ctl_new1(&snd_gus_joystick_control, gus));
}
/*
*
*/
static int snd_gus_free(struct snd_gus_card *gus)
{
if (gus->gf1.res_port2 == NULL)
goto __hw_end;
#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
if (gus->seq_dev) {
snd_device_free(gus->card, gus->seq_dev);
gus->seq_dev = NULL;
}
#endif
snd_gf1_stop(gus);
snd_gus_init_dma_irq(gus, 0);
__hw_end:
release_and_free_resource(gus->gf1.res_port1);
release_and_free_resource(gus->gf1.res_port2);
if (gus->gf1.irq >= 0)
free_irq(gus->gf1.irq, (void *) gus);
if (gus->gf1.dma1 >= 0) {
disable_dma(gus->gf1.dma1);
free_dma(gus->gf1.dma1);
}
if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
disable_dma(gus->gf1.dma2);
free_dma(gus->gf1.dma2);
}
kfree(gus);
return 0;
}
static int snd_gus_dev_free(struct snd_device *device)
{
struct snd_gus_card *gus = device->device_data;
return snd_gus_free(gus);
}
int snd_gus_create(struct snd_card *card,
unsigned long port,
int irq, int dma1, int dma2,
int timer_dev,
int voices,
int pcm_channels,
int effect,
struct snd_gus_card **rgus)
{
struct snd_gus_card *gus;
int err;
static struct snd_device_ops ops = {
.dev_free = snd_gus_dev_free,
};
*rgus = NULL;
gus = kzalloc(sizeof(*gus), GFP_KERNEL);
if (gus == NULL)
return -ENOMEM;
gus->gf1.irq = -1;
gus->gf1.dma1 = -1;
gus->gf1.dma2 = -1;
gus->card = card;
gus->gf1.port = port;
/* fill register variables for speedup */
gus->gf1.reg_page = GUSP(gus, GF1PAGE);
gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
gus->gf1.reg_dram = GUSP(gus, DRAM);
gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
/* allocate resources */
if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
snd_gus_free(gus);
return -EBUSY;
}
if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
snd_gus_free(gus);
return -EBUSY;
}
if (irq >= 0 && request_irq(irq, snd_gus_interrupt, IRQF_DISABLED, "GUS GF1", (void *) gus)) {
snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
snd_gus_free(gus);
return -EBUSY;
}
gus->gf1.irq = irq;
if (request_dma(dma1, "GUS - 1")) {
snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
snd_gus_free(gus);
return -EBUSY;
}
gus->gf1.dma1 = dma1;
if (dma2 >= 0 && dma1 != dma2) {
if (request_dma(dma2, "GUS - 2")) {
snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
snd_gus_free(gus);
return -EBUSY;
}
gus->gf1.dma2 = dma2;
} else {
gus->gf1.dma2 = gus->gf1.dma1;
gus->equal_dma = 1;
}
gus->timer_dev = timer_dev;
if (voices < 14)
voices = 14;
if (voices > 32)
voices = 32;
if (pcm_channels < 0)
pcm_channels = 0;
if (pcm_channels > 8)
pcm_channels = 8;
pcm_channels++;
pcm_channels &= ~1;
gus->gf1.effect = effect ? 1 : 0;
gus->gf1.active_voices = voices;
gus->gf1.pcm_channels = pcm_channels;
gus->gf1.volume_ramp = 25;
gus->gf1.smooth_pan = 1;
spin_lock_init(&gus->reg_lock);
spin_lock_init(&gus->voice_alloc);
spin_lock_init(&gus->active_voice_lock);
spin_lock_init(&gus->event_lock);
spin_lock_init(&gus->dma_lock);
spin_lock_init(&gus->pcm_volume_level_lock);
spin_lock_init(&gus->uart_cmd_lock);
mutex_init(&gus->dma_mutex);
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
snd_gus_free(gus);
return err;
}
*rgus = gus;
return 0;
}
/*
* Memory detection routine for plain GF1 soundcards
*/
static int snd_gus_detect_memory(struct snd_gus_card * gus)
{
int l, idx, local;
unsigned char d;
snd_gf1_poke(gus, 0L, 0xaa);
snd_gf1_poke(gus, 1L, 0x55);
if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
return -ENOMEM;
}
for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
local = idx << 18;
snd_gf1_poke(gus, local, d);
snd_gf1_poke(gus, local + 1, d + 1);
if (snd_gf1_peek(gus, local) != d ||
snd_gf1_peek(gus, local + 1) != d + 1 ||
snd_gf1_peek(gus, 0L) != 0xaa)
break;
}
#if 1
gus->gf1.memory = idx << 18;
#else
gus->gf1.memory = 256 * 1024;
#endif
for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
gus->gf1.mem_alloc.banks_8[l].address =
gus->gf1.mem_alloc.banks_8[l].size = 0;
gus->gf1.mem_alloc.banks_16[l].address = l << 18;
gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
}
gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
return 0; /* some memory were detected */
}
static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
{
struct snd_card *card;
unsigned long flags;
int irq, dma1, dma2;
static unsigned char irqs[16] =
{0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
static unsigned char dmas[8] =
{6, 1, 0, 2, 0, 3, 4, 5};
snd_assert(gus != NULL, return -EINVAL);
card = gus->card;
snd_assert(card != NULL, return -EINVAL);
gus->mix_cntrl_reg &= 0xf8;
gus->mix_cntrl_reg |= 0x01; /* disable MIC, LINE IN, enable LINE OUT */
if (gus->codec_flag || gus->ess_flag) {
gus->mix_cntrl_reg &= ~1; /* enable LINE IN */
gus->mix_cntrl_reg |= 4; /* enable MIC */
}
dma1 = gus->gf1.dma1;
dma1 = abs(dma1);
dma1 = dmas[dma1 & 7];
dma2 = gus->gf1.dma2;
dma2 = abs(dma2);
dma2 = dmas[dma2 & 7];
dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
return -EINVAL;
}
irq = gus->gf1.irq;
irq = abs(irq);
irq = irqs[irq & 0x0f];
if (irq == 0) {
snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
return -EINVAL;
}
irq |= 0x40;
#if 0
card->mixer.mix_ctrl_reg |= 0x10;
#endif
spin_lock_irqsave(&gus->reg_lock, flags);
outb(5, GUSP(gus, REGCNTRLS));
outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
outb(0x00, GUSP(gus, IRQDMACNTRLREG));
outb(0, GUSP(gus, REGCNTRLS));
spin_unlock_irqrestore(&gus->reg_lock, flags);
udelay(100);
spin_lock_irqsave(&gus->reg_lock, flags);
outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
outb(dma1, GUSP(gus, IRQDMACNTRLREG));
if (latches) {
outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
outb(irq, GUSP(gus, IRQDMACNTRLREG));
}
spin_unlock_irqrestore(&gus->reg_lock, flags);
udelay(100);
spin_lock_irqsave(&gus->reg_lock, flags);
outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
outb(dma1, GUSP(gus, IRQDMACNTRLREG));
if (latches) {
outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
outb(irq, GUSP(gus, IRQDMACNTRLREG));
}
spin_unlock_irqrestore(&gus->reg_lock, flags);
snd_gf1_delay(gus);
if (latches)
gus->mix_cntrl_reg |= 0x08; /* enable latches */
else
gus->mix_cntrl_reg &= ~0x08; /* disable latches */
spin_lock_irqsave(&gus->reg_lock, flags);
outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
outb(0, GUSP(gus, GF1PAGE));
spin_unlock_irqrestore(&gus->reg_lock, flags);
return 0;
}
static int snd_gus_check_version(struct snd_gus_card * gus)
{
unsigned long flags;
unsigned char val, rev;
struct snd_card *card;
card = gus->card;
spin_lock_irqsave(&gus->reg_lock, flags);
outb(0x20, GUSP(gus, REGCNTRLS));
val = inb(GUSP(gus, REGCNTRLS));
rev = inb(GUSP(gus, BOARDVERSION));
spin_unlock_irqrestore(&gus->reg_lock, flags);
snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
strcpy(card->driver, "GUS");
strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
if (rev >= 5 && rev <= 9) {
gus->ics_flag = 1;
if (rev == 5)
gus->ics_flipped = 1;
card->longname[27] = '3';
card->longname[29] = rev == 5 ? '5' : '7';
}
if (rev >= 10 && rev != 255) {
if (rev >= 10 && rev <= 11) {
strcpy(card->driver, "GUS MAX");
strcpy(card->longname, "Gravis UltraSound MAX");
gus->max_flag = 1;
} else if (rev == 0x30) {
strcpy(card->driver, "GUS ACE");
strcpy(card->longname, "Gravis UltraSound Ace");
gus->ace_flag = 1;
} else if (rev == 0x50) {
strcpy(card->driver, "GUS Extreme");
strcpy(card->longname, "Gravis UltraSound Extreme");
gus->ess_flag = 1;
} else {
snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
snd_printk(KERN_ERR " please - report to <perex@suse.cz>\n");
}
}
}
strcpy(card->shortname, card->longname);
gus->uart_enable = 1; /* standard GUSes doesn't have midi uart trouble */
snd_gus_init_control(gus);
return 0;
}
#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
static void snd_gus_seq_dev_free(struct snd_seq_device *seq_dev)
{
struct snd_gus_card *gus = seq_dev->private_data;
gus->seq_dev = NULL;
}
#endif
int snd_gus_initialize(struct snd_gus_card *gus)
{
int err;
if (!gus->interwave) {
if ((err = snd_gus_check_version(gus)) < 0) {
snd_printk(KERN_ERR "version check failed\n");
return err;
}
if ((err = snd_gus_detect_memory(gus)) < 0)
return err;
}
if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
return err;
#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
if (snd_seq_device_new(gus->card, 1, SNDRV_SEQ_DEV_ID_GUS,
sizeof(struct snd_gus_card *), &gus->seq_dev) >= 0) {
strcpy(gus->seq_dev->name, "GUS");
*(struct snd_gus_card **)SNDRV_SEQ_DEVICE_ARGPTR(gus->seq_dev) = gus;
gus->seq_dev->private_data = gus;
gus->seq_dev->private_free = snd_gus_seq_dev_free;
}
#endif
snd_gf1_start(gus);
gus->initialized = 1;
return 0;
}
/* gus_io.c */
EXPORT_SYMBOL(snd_gf1_delay);
EXPORT_SYMBOL(snd_gf1_write8);
EXPORT_SYMBOL(snd_gf1_look8);
EXPORT_SYMBOL(snd_gf1_write16);
EXPORT_SYMBOL(snd_gf1_look16);
EXPORT_SYMBOL(snd_gf1_i_write8);
EXPORT_SYMBOL(snd_gf1_i_look8);
EXPORT_SYMBOL(snd_gf1_i_look16);
EXPORT_SYMBOL(snd_gf1_dram_addr);
EXPORT_SYMBOL(snd_gf1_write_addr);
EXPORT_SYMBOL(snd_gf1_poke);
EXPORT_SYMBOL(snd_gf1_peek);
/* gus_reset.c */
EXPORT_SYMBOL(snd_gf1_alloc_voice);
EXPORT_SYMBOL(snd_gf1_free_voice);
EXPORT_SYMBOL(snd_gf1_ctrl_stop);
EXPORT_SYMBOL(snd_gf1_stop_voice);
/* gus_mixer.c */
EXPORT_SYMBOL(snd_gf1_new_mixer);
/* gus_pcm.c */
EXPORT_SYMBOL(snd_gf1_pcm_new);
/* gus.c */
EXPORT_SYMBOL(snd_gus_use_inc);
EXPORT_SYMBOL(snd_gus_use_dec);
EXPORT_SYMBOL(snd_gus_create);
EXPORT_SYMBOL(snd_gus_initialize);
/* gus_irq.c */
EXPORT_SYMBOL(snd_gus_interrupt);
/* gus_uart.c */
EXPORT_SYMBOL(snd_gf1_rawmidi_new);
/* gus_dram.c */
EXPORT_SYMBOL(snd_gus_dram_write);
EXPORT_SYMBOL(snd_gus_dram_read);
/* gus_volume.c */
EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
EXPORT_SYMBOL(snd_gf1_translate_freq);
/* gus_mem.c */
EXPORT_SYMBOL(snd_gf1_mem_alloc);
EXPORT_SYMBOL(snd_gf1_mem_xfree);
EXPORT_SYMBOL(snd_gf1_mem_free);
EXPORT_SYMBOL(snd_gf1_mem_lock);
/*
* INIT part
*/
static int __init alsa_gus_init(void)
{
return 0;
}
static void __exit alsa_gus_exit(void)
{
}
module_init(alsa_gus_init)
module_exit(alsa_gus_exit)
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