911 lines
29 KiB
C
911 lines
29 KiB
C
/*
|
|
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
|
|
* Routines for control of GF1 chip (PCM things)
|
|
*
|
|
* InterWave chips supports interleaved DMA, but this feature isn't used in
|
|
* this code.
|
|
*
|
|
* This code emulates autoinit DMA transfer for playback, recording by GF1
|
|
* chip doesn't support autoinit DMA.
|
|
*
|
|
*
|
|
* 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 <asm/dma.h>
|
|
#include <linux/slab.h>
|
|
#include <sound/core.h>
|
|
#include <sound/control.h>
|
|
#include <sound/gus.h>
|
|
#include <sound/pcm_params.h>
|
|
#include "gus_tables.h"
|
|
|
|
/* maximum rate */
|
|
|
|
#define SNDRV_GF1_PCM_RATE 48000
|
|
|
|
#define SNDRV_GF1_PCM_PFLG_NONE 0
|
|
#define SNDRV_GF1_PCM_PFLG_ACTIVE (1<<0)
|
|
#define SNDRV_GF1_PCM_PFLG_NEUTRAL (2<<0)
|
|
|
|
struct gus_pcm_private {
|
|
struct snd_gus_card * gus;
|
|
struct snd_pcm_substream *substream;
|
|
spinlock_t lock;
|
|
unsigned int voices;
|
|
struct snd_gus_voice *pvoices[2];
|
|
unsigned int memory;
|
|
unsigned short flags;
|
|
unsigned char voice_ctrl, ramp_ctrl;
|
|
unsigned int bpos;
|
|
unsigned int blocks;
|
|
unsigned int block_size;
|
|
unsigned int dma_size;
|
|
wait_queue_head_t sleep;
|
|
atomic_t dma_count;
|
|
int final_volume;
|
|
};
|
|
|
|
static int snd_gf1_pcm_use_dma = 1;
|
|
|
|
static void snd_gf1_pcm_block_change_ack(struct snd_gus_card * gus, void *private_data)
|
|
{
|
|
struct gus_pcm_private *pcmp = private_data;
|
|
|
|
if (pcmp) {
|
|
atomic_dec(&pcmp->dma_count);
|
|
wake_up(&pcmp->sleep);
|
|
}
|
|
}
|
|
|
|
static int snd_gf1_pcm_block_change(struct snd_pcm_substream *substream,
|
|
unsigned int offset,
|
|
unsigned int addr,
|
|
unsigned int count)
|
|
{
|
|
struct snd_gf1_dma_block block;
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
|
|
count += offset & 31;
|
|
offset &= ~31;
|
|
/*
|
|
snd_printk(KERN_DEBUG "block change - offset = 0x%x, count = 0x%x\n",
|
|
offset, count);
|
|
*/
|
|
memset(&block, 0, sizeof(block));
|
|
block.cmd = SNDRV_GF1_DMA_IRQ;
|
|
if (snd_pcm_format_unsigned(runtime->format))
|
|
block.cmd |= SNDRV_GF1_DMA_UNSIGNED;
|
|
if (snd_pcm_format_width(runtime->format) == 16)
|
|
block.cmd |= SNDRV_GF1_DMA_16BIT;
|
|
block.addr = addr & ~31;
|
|
block.buffer = runtime->dma_area + offset;
|
|
block.buf_addr = runtime->dma_addr + offset;
|
|
block.count = count;
|
|
block.private_data = pcmp;
|
|
block.ack = snd_gf1_pcm_block_change_ack;
|
|
if (!snd_gf1_dma_transfer_block(pcmp->gus, &block, 0, 0))
|
|
atomic_inc(&pcmp->dma_count);
|
|
return 0;
|
|
}
|
|
|
|
static void snd_gf1_pcm_trigger_up(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
struct snd_gus_card * gus = pcmp->gus;
|
|
unsigned long flags;
|
|
unsigned char voice_ctrl, ramp_ctrl;
|
|
unsigned short rate;
|
|
unsigned int curr, begin, end;
|
|
unsigned short vol;
|
|
unsigned char pan;
|
|
unsigned int voice;
|
|
|
|
spin_lock_irqsave(&pcmp->lock, flags);
|
|
if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
|
|
spin_unlock_irqrestore(&pcmp->lock, flags);
|
|
return;
|
|
}
|
|
pcmp->flags |= SNDRV_GF1_PCM_PFLG_ACTIVE;
|
|
pcmp->final_volume = 0;
|
|
spin_unlock_irqrestore(&pcmp->lock, flags);
|
|
rate = snd_gf1_translate_freq(gus, runtime->rate << 4);
|
|
/* enable WAVE IRQ */
|
|
voice_ctrl = snd_pcm_format_width(runtime->format) == 16 ? 0x24 : 0x20;
|
|
/* enable RAMP IRQ + rollover */
|
|
ramp_ctrl = 0x24;
|
|
if (pcmp->blocks == 1) {
|
|
voice_ctrl |= 0x08; /* loop enable */
|
|
ramp_ctrl &= ~0x04; /* disable rollover */
|
|
}
|
|
for (voice = 0; voice < pcmp->voices; voice++) {
|
|
begin = pcmp->memory + voice * (pcmp->dma_size / runtime->channels);
|
|
curr = begin + (pcmp->bpos * pcmp->block_size) / runtime->channels;
|
|
end = curr + (pcmp->block_size / runtime->channels);
|
|
end -= snd_pcm_format_width(runtime->format) == 16 ? 2 : 1;
|
|
/*
|
|
snd_printk(KERN_DEBUG "init: curr=0x%x, begin=0x%x, end=0x%x, "
|
|
"ctrl=0x%x, ramp=0x%x, rate=0x%x\n",
|
|
curr, begin, end, voice_ctrl, ramp_ctrl, rate);
|
|
*/
|
|
pan = runtime->channels == 2 ? (!voice ? 1 : 14) : 8;
|
|
vol = !voice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
|
|
spin_lock_irqsave(&gus->reg_lock, flags);
|
|
snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, pan);
|
|
snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, rate);
|
|
snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, begin << 4, voice_ctrl & 4);
|
|
snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
|
|
snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, curr << 4, voice_ctrl & 4);
|
|
snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, SNDRV_GF1_MIN_VOLUME << 4);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0x2f);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, vol >> 8);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
|
|
if (!gus->gf1.enh_mode) {
|
|
snd_gf1_delay(gus);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
|
|
}
|
|
spin_unlock_irqrestore(&gus->reg_lock, flags);
|
|
}
|
|
spin_lock_irqsave(&gus->reg_lock, flags);
|
|
for (voice = 0; voice < pcmp->voices; voice++) {
|
|
snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
|
|
if (gus->gf1.enh_mode)
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, 0x00); /* deactivate voice */
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
|
|
voice_ctrl &= ~0x20;
|
|
}
|
|
voice_ctrl |= 0x20;
|
|
if (!gus->gf1.enh_mode) {
|
|
snd_gf1_delay(gus);
|
|
for (voice = 0; voice < pcmp->voices; voice++) {
|
|
snd_gf1_select_voice(gus, pcmp->pvoices[voice]->number);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
|
|
voice_ctrl &= ~0x20; /* disable IRQ for next voice */
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&gus->reg_lock, flags);
|
|
}
|
|
|
|
static void snd_gf1_pcm_interrupt_wave(struct snd_gus_card * gus,
|
|
struct snd_gus_voice *pvoice)
|
|
{
|
|
struct gus_pcm_private * pcmp;
|
|
struct snd_pcm_runtime *runtime;
|
|
unsigned char voice_ctrl, ramp_ctrl;
|
|
unsigned int idx;
|
|
unsigned int end, step;
|
|
|
|
if (!pvoice->private_data) {
|
|
snd_printd("snd_gf1_pcm: unknown wave irq?\n");
|
|
snd_gf1_smart_stop_voice(gus, pvoice->number);
|
|
return;
|
|
}
|
|
pcmp = pvoice->private_data;
|
|
if (pcmp == NULL) {
|
|
snd_printd("snd_gf1_pcm: unknown wave irq?\n");
|
|
snd_gf1_smart_stop_voice(gus, pvoice->number);
|
|
return;
|
|
}
|
|
gus = pcmp->gus;
|
|
runtime = pcmp->substream->runtime;
|
|
|
|
spin_lock(&gus->reg_lock);
|
|
snd_gf1_select_voice(gus, pvoice->number);
|
|
voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & ~0x8b;
|
|
ramp_ctrl = (snd_gf1_read8(gus, SNDRV_GF1_VB_VOLUME_CONTROL) & ~0xa4) | 0x03;
|
|
#if 0
|
|
snd_gf1_select_voice(gus, pvoice->number);
|
|
printk(KERN_DEBUG "position = 0x%x\n",
|
|
(snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
|
|
snd_gf1_select_voice(gus, pcmp->pvoices[1]->number);
|
|
printk(KERN_DEBUG "position = 0x%x\n",
|
|
(snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4));
|
|
snd_gf1_select_voice(gus, pvoice->number);
|
|
#endif
|
|
pcmp->bpos++;
|
|
pcmp->bpos %= pcmp->blocks;
|
|
if (pcmp->bpos + 1 >= pcmp->blocks) { /* last block? */
|
|
voice_ctrl |= 0x08; /* enable loop */
|
|
} else {
|
|
ramp_ctrl |= 0x04; /* enable rollover */
|
|
}
|
|
end = pcmp->memory + (((pcmp->bpos + 1) * pcmp->block_size) / runtime->channels);
|
|
end -= voice_ctrl & 4 ? 2 : 1;
|
|
step = pcmp->dma_size / runtime->channels;
|
|
voice_ctrl |= 0x20;
|
|
if (!pcmp->final_volume) {
|
|
ramp_ctrl |= 0x20;
|
|
ramp_ctrl &= ~0x03;
|
|
}
|
|
for (idx = 0; idx < pcmp->voices; idx++, end += step) {
|
|
snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
|
|
snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, end << 4, voice_ctrl & 4);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
|
|
voice_ctrl &= ~0x20;
|
|
}
|
|
if (!gus->gf1.enh_mode) {
|
|
snd_gf1_delay(gus);
|
|
voice_ctrl |= 0x20;
|
|
for (idx = 0; idx < pcmp->voices; idx++) {
|
|
snd_gf1_select_voice(gus, pcmp->pvoices[idx]->number);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL, voice_ctrl);
|
|
snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, ramp_ctrl);
|
|
voice_ctrl &= ~0x20;
|
|
}
|
|
}
|
|
spin_unlock(&gus->reg_lock);
|
|
|
|
snd_pcm_period_elapsed(pcmp->substream);
|
|
#if 0
|
|
if ((runtime->flags & SNDRV_PCM_FLG_MMAP) &&
|
|
*runtime->state == SNDRV_PCM_STATE_RUNNING) {
|
|
end = pcmp->bpos * pcmp->block_size;
|
|
if (runtime->channels > 1) {
|
|
snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + (end / 2), pcmp->block_size / 2);
|
|
snd_gf1_pcm_block_change(pcmp->substream, end + (pcmp->block_size / 2), pcmp->memory + (pcmp->dma_size / 2) + (end / 2), pcmp->block_size / 2);
|
|
} else {
|
|
snd_gf1_pcm_block_change(pcmp->substream, end, pcmp->memory + end, pcmp->block_size);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static void snd_gf1_pcm_interrupt_volume(struct snd_gus_card * gus,
|
|
struct snd_gus_voice * pvoice)
|
|
{
|
|
unsigned short vol;
|
|
int cvoice;
|
|
struct gus_pcm_private *pcmp = pvoice->private_data;
|
|
|
|
/* stop ramp, but leave rollover bit untouched */
|
|
spin_lock(&gus->reg_lock);
|
|
snd_gf1_select_voice(gus, pvoice->number);
|
|
snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
|
|
spin_unlock(&gus->reg_lock);
|
|
if (pcmp == NULL)
|
|
return;
|
|
/* are we active? */
|
|
if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
|
|
return;
|
|
/* load real volume - better precision */
|
|
cvoice = pcmp->pvoices[0] == pvoice ? 0 : 1;
|
|
if (pcmp->substream == NULL)
|
|
return;
|
|
vol = !cvoice ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
|
|
spin_lock(&gus->reg_lock);
|
|
snd_gf1_select_voice(gus, pvoice->number);
|
|
snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
|
|
pcmp->final_volume = 1;
|
|
spin_unlock(&gus->reg_lock);
|
|
}
|
|
|
|
static void snd_gf1_pcm_volume_change(struct snd_gus_card * gus)
|
|
{
|
|
}
|
|
|
|
static int snd_gf1_pcm_poke_block(struct snd_gus_card *gus, unsigned char *buf,
|
|
unsigned int pos, unsigned int count,
|
|
int w16, int invert)
|
|
{
|
|
unsigned int len;
|
|
unsigned long flags;
|
|
|
|
/*
|
|
printk(KERN_DEBUG
|
|
"poke block; buf = 0x%x, pos = %i, count = %i, port = 0x%x\n",
|
|
(int)buf, pos, count, gus->gf1.port);
|
|
*/
|
|
while (count > 0) {
|
|
len = count;
|
|
if (len > 512) /* limit, to allow IRQ */
|
|
len = 512;
|
|
count -= len;
|
|
if (gus->interwave) {
|
|
spin_lock_irqsave(&gus->reg_lock, flags);
|
|
snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01 | (invert ? 0x08 : 0x00));
|
|
snd_gf1_dram_addr(gus, pos);
|
|
if (w16) {
|
|
outb(SNDRV_GF1_GW_DRAM_IO16, GUSP(gus, GF1REGSEL));
|
|
outsw(GUSP(gus, GF1DATALOW), buf, len >> 1);
|
|
} else {
|
|
outsb(GUSP(gus, DRAM), buf, len);
|
|
}
|
|
spin_unlock_irqrestore(&gus->reg_lock, flags);
|
|
buf += 512;
|
|
pos += 512;
|
|
} else {
|
|
invert = invert ? 0x80 : 0x00;
|
|
if (w16) {
|
|
len >>= 1;
|
|
while (len--) {
|
|
snd_gf1_poke(gus, pos++, *buf++);
|
|
snd_gf1_poke(gus, pos++, *buf++ ^ invert);
|
|
}
|
|
} else {
|
|
while (len--)
|
|
snd_gf1_poke(gus, pos++, *buf++ ^ invert);
|
|
}
|
|
}
|
|
if (count > 0 && !in_interrupt()) {
|
|
schedule_timeout_interruptible(1);
|
|
if (signal_pending(current))
|
|
return -EAGAIN;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_copy(struct snd_pcm_substream *substream,
|
|
int voice,
|
|
snd_pcm_uframes_t pos,
|
|
void __user *src,
|
|
snd_pcm_uframes_t count)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
unsigned int bpos, len;
|
|
|
|
bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
|
|
len = samples_to_bytes(runtime, count);
|
|
if (snd_BUG_ON(bpos > pcmp->dma_size))
|
|
return -EIO;
|
|
if (snd_BUG_ON(bpos + len > pcmp->dma_size))
|
|
return -EIO;
|
|
if (copy_from_user(runtime->dma_area + bpos, src, len))
|
|
return -EFAULT;
|
|
if (snd_gf1_pcm_use_dma && len > 32) {
|
|
return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len);
|
|
} else {
|
|
struct snd_gus_card *gus = pcmp->gus;
|
|
int err, w16, invert;
|
|
|
|
w16 = (snd_pcm_format_width(runtime->format) == 16);
|
|
invert = snd_pcm_format_unsigned(runtime->format);
|
|
if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_silence(struct snd_pcm_substream *substream,
|
|
int voice,
|
|
snd_pcm_uframes_t pos,
|
|
snd_pcm_uframes_t count)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
unsigned int bpos, len;
|
|
|
|
bpos = samples_to_bytes(runtime, pos) + (voice * (pcmp->dma_size / 2));
|
|
len = samples_to_bytes(runtime, count);
|
|
if (snd_BUG_ON(bpos > pcmp->dma_size))
|
|
return -EIO;
|
|
if (snd_BUG_ON(bpos + len > pcmp->dma_size))
|
|
return -EIO;
|
|
snd_pcm_format_set_silence(runtime->format, runtime->dma_area + bpos, count);
|
|
if (snd_gf1_pcm_use_dma && len > 32) {
|
|
return snd_gf1_pcm_block_change(substream, bpos, pcmp->memory + bpos, len);
|
|
} else {
|
|
struct snd_gus_card *gus = pcmp->gus;
|
|
int err, w16, invert;
|
|
|
|
w16 = (snd_pcm_format_width(runtime->format) == 16);
|
|
invert = snd_pcm_format_unsigned(runtime->format);
|
|
if ((err = snd_gf1_pcm_poke_block(gus, runtime->dma_area + bpos, pcmp->memory + bpos, len, w16, invert)) < 0)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *hw_params)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
int err;
|
|
|
|
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
|
|
return err;
|
|
if (err > 0) { /* change */
|
|
struct snd_gf1_mem_block *block;
|
|
if (pcmp->memory > 0) {
|
|
snd_gf1_mem_free(&gus->gf1.mem_alloc, pcmp->memory);
|
|
pcmp->memory = 0;
|
|
}
|
|
if ((block = snd_gf1_mem_alloc(&gus->gf1.mem_alloc,
|
|
SNDRV_GF1_MEM_OWNER_DRIVER,
|
|
"GF1 PCM",
|
|
runtime->dma_bytes, 1, 32,
|
|
NULL)) == NULL)
|
|
return -ENOMEM;
|
|
pcmp->memory = block->ptr;
|
|
}
|
|
pcmp->voices = params_channels(hw_params);
|
|
if (pcmp->pvoices[0] == NULL) {
|
|
if ((pcmp->pvoices[0] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
|
|
return -ENOMEM;
|
|
pcmp->pvoices[0]->handler_wave = snd_gf1_pcm_interrupt_wave;
|
|
pcmp->pvoices[0]->handler_volume = snd_gf1_pcm_interrupt_volume;
|
|
pcmp->pvoices[0]->volume_change = snd_gf1_pcm_volume_change;
|
|
pcmp->pvoices[0]->private_data = pcmp;
|
|
}
|
|
if (pcmp->voices > 1 && pcmp->pvoices[1] == NULL) {
|
|
if ((pcmp->pvoices[1] = snd_gf1_alloc_voice(pcmp->gus, SNDRV_GF1_VOICE_TYPE_PCM, 0, 0)) == NULL)
|
|
return -ENOMEM;
|
|
pcmp->pvoices[1]->handler_wave = snd_gf1_pcm_interrupt_wave;
|
|
pcmp->pvoices[1]->handler_volume = snd_gf1_pcm_interrupt_volume;
|
|
pcmp->pvoices[1]->volume_change = snd_gf1_pcm_volume_change;
|
|
pcmp->pvoices[1]->private_data = pcmp;
|
|
} else if (pcmp->voices == 1) {
|
|
if (pcmp->pvoices[1]) {
|
|
snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
|
|
pcmp->pvoices[1] = NULL;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
|
|
snd_pcm_lib_free_pages(substream);
|
|
if (pcmp->pvoices[0]) {
|
|
snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[0]);
|
|
pcmp->pvoices[0] = NULL;
|
|
}
|
|
if (pcmp->pvoices[1]) {
|
|
snd_gf1_free_voice(pcmp->gus, pcmp->pvoices[1]);
|
|
pcmp->pvoices[1] = NULL;
|
|
}
|
|
if (pcmp->memory > 0) {
|
|
snd_gf1_mem_free(&pcmp->gus->gf1.mem_alloc, pcmp->memory);
|
|
pcmp->memory = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
|
|
pcmp->bpos = 0;
|
|
pcmp->dma_size = snd_pcm_lib_buffer_bytes(substream);
|
|
pcmp->block_size = snd_pcm_lib_period_bytes(substream);
|
|
pcmp->blocks = pcmp->dma_size / pcmp->block_size;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_trigger(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
int voice;
|
|
|
|
if (cmd == SNDRV_PCM_TRIGGER_START) {
|
|
snd_gf1_pcm_trigger_up(substream);
|
|
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
|
|
spin_lock(&pcmp->lock);
|
|
pcmp->flags &= ~SNDRV_GF1_PCM_PFLG_ACTIVE;
|
|
spin_unlock(&pcmp->lock);
|
|
voice = pcmp->pvoices[0]->number;
|
|
snd_gf1_stop_voices(gus, voice, voice);
|
|
if (pcmp->pvoices[1]) {
|
|
voice = pcmp->pvoices[1]->number;
|
|
snd_gf1_stop_voices(gus, voice, voice);
|
|
}
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static snd_pcm_uframes_t snd_gf1_pcm_playback_pointer(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
unsigned int pos;
|
|
unsigned char voice_ctrl;
|
|
|
|
pos = 0;
|
|
spin_lock(&gus->reg_lock);
|
|
if (pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE) {
|
|
snd_gf1_select_voice(gus, pcmp->pvoices[0]->number);
|
|
voice_ctrl = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
|
|
pos = (snd_gf1_read_addr(gus, SNDRV_GF1_VA_CURRENT, voice_ctrl & 4) >> 4) - pcmp->memory;
|
|
if (substream->runtime->channels > 1)
|
|
pos <<= 1;
|
|
pos = bytes_to_frames(runtime, pos);
|
|
}
|
|
spin_unlock(&gus->reg_lock);
|
|
return pos;
|
|
}
|
|
|
|
static struct snd_ratnum clock = {
|
|
.num = 9878400/16,
|
|
.den_min = 2,
|
|
.den_max = 257,
|
|
.den_step = 1,
|
|
};
|
|
|
|
static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
|
|
.nrats = 1,
|
|
.rats = &clock,
|
|
};
|
|
|
|
static int snd_gf1_pcm_capture_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *hw_params)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
|
|
gus->c_dma_size = params_buffer_bytes(hw_params);
|
|
gus->c_period_size = params_period_bytes(hw_params);
|
|
gus->c_pos = 0;
|
|
gus->gf1.pcm_rcntrl_reg = 0x21; /* IRQ at end, enable & start */
|
|
if (params_channels(hw_params) > 1)
|
|
gus->gf1.pcm_rcntrl_reg |= 2;
|
|
if (gus->gf1.dma2 > 3)
|
|
gus->gf1.pcm_rcntrl_reg |= 4;
|
|
if (snd_pcm_format_unsigned(params_format(hw_params)))
|
|
gus->gf1.pcm_rcntrl_reg |= 0x80;
|
|
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
|
|
}
|
|
|
|
static int snd_gf1_pcm_capture_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
return snd_pcm_lib_free_pages(substream);
|
|
}
|
|
|
|
static int snd_gf1_pcm_capture_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
|
|
snd_gf1_i_write8(gus, SNDRV_GF1_GB_RECORD_RATE, runtime->rate_den - 2);
|
|
snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
|
|
snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
|
|
snd_dma_program(gus->gf1.dma2, runtime->dma_addr, gus->c_period_size, DMA_MODE_READ);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_capture_trigger(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
int val;
|
|
|
|
if (cmd == SNDRV_PCM_TRIGGER_START) {
|
|
val = gus->gf1.pcm_rcntrl_reg;
|
|
} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
|
|
val = 0;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
spin_lock(&gus->reg_lock);
|
|
snd_gf1_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, val);
|
|
snd_gf1_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL);
|
|
spin_unlock(&gus->reg_lock);
|
|
return 0;
|
|
}
|
|
|
|
static snd_pcm_uframes_t snd_gf1_pcm_capture_pointer(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
int pos = snd_dma_pointer(gus->gf1.dma2, gus->c_period_size);
|
|
pos = bytes_to_frames(substream->runtime, (gus->c_pos + pos) % gus->c_dma_size);
|
|
return pos;
|
|
}
|
|
|
|
static void snd_gf1_pcm_interrupt_dma_read(struct snd_gus_card * gus)
|
|
{
|
|
snd_gf1_i_write8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL, 0); /* disable sampling */
|
|
snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL); /* Sampling Control Register */
|
|
if (gus->pcm_cap_substream != NULL) {
|
|
snd_gf1_pcm_capture_prepare(gus->pcm_cap_substream);
|
|
snd_gf1_pcm_capture_trigger(gus->pcm_cap_substream, SNDRV_PCM_TRIGGER_START);
|
|
gus->c_pos += gus->c_period_size;
|
|
snd_pcm_period_elapsed(gus->pcm_cap_substream);
|
|
}
|
|
}
|
|
|
|
static struct snd_pcm_hardware snd_gf1_pcm_playback =
|
|
{
|
|
.info = SNDRV_PCM_INFO_NONINTERLEAVED,
|
|
.formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
|
|
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE),
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
|
|
.rate_min = 5510,
|
|
.rate_max = 48000,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = (128*1024),
|
|
.period_bytes_min = 64,
|
|
.period_bytes_max = (128*1024),
|
|
.periods_min = 1,
|
|
.periods_max = 1024,
|
|
.fifo_size = 0,
|
|
};
|
|
|
|
static struct snd_pcm_hardware snd_gf1_pcm_capture =
|
|
{
|
|
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID),
|
|
.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8,
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_44100,
|
|
.rate_min = 5510,
|
|
.rate_max = 44100,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = (128*1024),
|
|
.period_bytes_min = 64,
|
|
.period_bytes_max = (128*1024),
|
|
.periods_min = 1,
|
|
.periods_max = 1024,
|
|
.fifo_size = 0,
|
|
};
|
|
|
|
static void snd_gf1_pcm_playback_free(struct snd_pcm_runtime *runtime)
|
|
{
|
|
kfree(runtime->private_data);
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct gus_pcm_private *pcmp;
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
int err;
|
|
|
|
pcmp = kzalloc(sizeof(*pcmp), GFP_KERNEL);
|
|
if (pcmp == NULL)
|
|
return -ENOMEM;
|
|
pcmp->gus = gus;
|
|
spin_lock_init(&pcmp->lock);
|
|
init_waitqueue_head(&pcmp->sleep);
|
|
atomic_set(&pcmp->dma_count, 0);
|
|
|
|
runtime->private_data = pcmp;
|
|
runtime->private_free = snd_gf1_pcm_playback_free;
|
|
|
|
#if 0
|
|
printk(KERN_DEBUG "playback.buffer = 0x%lx, gf1.pcm_buffer = 0x%lx\n",
|
|
(long) pcm->playback.buffer, (long) gus->gf1.pcm_buffer);
|
|
#endif
|
|
if ((err = snd_gf1_dma_init(gus)) < 0)
|
|
return err;
|
|
pcmp->flags = SNDRV_GF1_PCM_PFLG_NONE;
|
|
pcmp->substream = substream;
|
|
runtime->hw = snd_gf1_pcm_playback;
|
|
snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.buffer_bytes_max);
|
|
snd_pcm_limit_isa_dma_size(gus->gf1.dma1, &runtime->hw.period_bytes_max);
|
|
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_playback_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct gus_pcm_private *pcmp = runtime->private_data;
|
|
|
|
if (!wait_event_timeout(pcmp->sleep, (atomic_read(&pcmp->dma_count) <= 0), 2*HZ))
|
|
snd_printk(KERN_ERR "gf1 pcm - serious DMA problem\n");
|
|
|
|
snd_gf1_dma_done(gus);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_capture_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
|
|
gus->gf1.interrupt_handler_dma_read = snd_gf1_pcm_interrupt_dma_read;
|
|
gus->pcm_cap_substream = substream;
|
|
substream->runtime->hw = snd_gf1_pcm_capture;
|
|
snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.buffer_bytes_max);
|
|
snd_pcm_limit_isa_dma_size(gus->gf1.dma2, &runtime->hw.period_bytes_max);
|
|
snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
|
|
&hw_constraints_clocks);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_capture_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_gus_card *gus = snd_pcm_substream_chip(substream);
|
|
|
|
gus->pcm_cap_substream = NULL;
|
|
snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_DMA_READ);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 2;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = 127;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
|
|
ucontrol->value.integer.value[0] = gus->gf1.pcm_volume_level_left1;
|
|
ucontrol->value.integer.value[1] = gus->gf1.pcm_volume_level_right1;
|
|
spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_gf1_pcm_volume_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 int idx;
|
|
unsigned short val1, val2, vol;
|
|
struct gus_pcm_private *pcmp;
|
|
struct snd_gus_voice *pvoice;
|
|
|
|
val1 = ucontrol->value.integer.value[0] & 127;
|
|
val2 = ucontrol->value.integer.value[1] & 127;
|
|
spin_lock_irqsave(&gus->pcm_volume_level_lock, flags);
|
|
change = val1 != gus->gf1.pcm_volume_level_left1 ||
|
|
val2 != gus->gf1.pcm_volume_level_right1;
|
|
gus->gf1.pcm_volume_level_left1 = val1;
|
|
gus->gf1.pcm_volume_level_right1 = val2;
|
|
gus->gf1.pcm_volume_level_left = snd_gf1_lvol_to_gvol_raw(val1 << 9) << 4;
|
|
gus->gf1.pcm_volume_level_right = snd_gf1_lvol_to_gvol_raw(val2 << 9) << 4;
|
|
spin_unlock_irqrestore(&gus->pcm_volume_level_lock, flags);
|
|
/* are we active? */
|
|
spin_lock_irqsave(&gus->voice_alloc, flags);
|
|
for (idx = 0; idx < 32; idx++) {
|
|
pvoice = &gus->gf1.voices[idx];
|
|
if (!pvoice->pcm)
|
|
continue;
|
|
pcmp = pvoice->private_data;
|
|
if (!(pcmp->flags & SNDRV_GF1_PCM_PFLG_ACTIVE))
|
|
continue;
|
|
/* load real volume - better precision */
|
|
spin_lock(&gus->reg_lock);
|
|
snd_gf1_select_voice(gus, pvoice->number);
|
|
snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
|
|
vol = pvoice == pcmp->pvoices[0] ? gus->gf1.pcm_volume_level_left : gus->gf1.pcm_volume_level_right;
|
|
snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, vol);
|
|
pcmp->final_volume = 1;
|
|
spin_unlock(&gus->reg_lock);
|
|
}
|
|
spin_unlock_irqrestore(&gus->voice_alloc, flags);
|
|
return change;
|
|
}
|
|
|
|
static struct snd_kcontrol_new snd_gf1_pcm_volume_control =
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "PCM Playback Volume",
|
|
.info = snd_gf1_pcm_volume_info,
|
|
.get = snd_gf1_pcm_volume_get,
|
|
.put = snd_gf1_pcm_volume_put
|
|
};
|
|
|
|
static struct snd_kcontrol_new snd_gf1_pcm_volume_control1 =
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "GPCM Playback Volume",
|
|
.info = snd_gf1_pcm_volume_info,
|
|
.get = snd_gf1_pcm_volume_get,
|
|
.put = snd_gf1_pcm_volume_put
|
|
};
|
|
|
|
static struct snd_pcm_ops snd_gf1_pcm_playback_ops = {
|
|
.open = snd_gf1_pcm_playback_open,
|
|
.close = snd_gf1_pcm_playback_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_gf1_pcm_playback_hw_params,
|
|
.hw_free = snd_gf1_pcm_playback_hw_free,
|
|
.prepare = snd_gf1_pcm_playback_prepare,
|
|
.trigger = snd_gf1_pcm_playback_trigger,
|
|
.pointer = snd_gf1_pcm_playback_pointer,
|
|
.copy = snd_gf1_pcm_playback_copy,
|
|
.silence = snd_gf1_pcm_playback_silence,
|
|
};
|
|
|
|
static struct snd_pcm_ops snd_gf1_pcm_capture_ops = {
|
|
.open = snd_gf1_pcm_capture_open,
|
|
.close = snd_gf1_pcm_capture_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_gf1_pcm_capture_hw_params,
|
|
.hw_free = snd_gf1_pcm_capture_hw_free,
|
|
.prepare = snd_gf1_pcm_capture_prepare,
|
|
.trigger = snd_gf1_pcm_capture_trigger,
|
|
.pointer = snd_gf1_pcm_capture_pointer,
|
|
};
|
|
|
|
int snd_gf1_pcm_new(struct snd_gus_card * gus, int pcm_dev, int control_index, struct snd_pcm ** rpcm)
|
|
{
|
|
struct snd_card *card;
|
|
struct snd_kcontrol *kctl;
|
|
struct snd_pcm *pcm;
|
|
struct snd_pcm_substream *substream;
|
|
int capture, err;
|
|
|
|
if (rpcm)
|
|
*rpcm = NULL;
|
|
card = gus->card;
|
|
capture = !gus->interwave && !gus->ess_flag && !gus->ace_flag ? 1 : 0;
|
|
err = snd_pcm_new(card,
|
|
gus->interwave ? "AMD InterWave" : "GF1",
|
|
pcm_dev,
|
|
gus->gf1.pcm_channels / 2,
|
|
capture,
|
|
&pcm);
|
|
if (err < 0)
|
|
return err;
|
|
pcm->private_data = gus;
|
|
/* playback setup */
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_gf1_pcm_playback_ops);
|
|
|
|
for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
|
|
snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
|
|
snd_dma_isa_data(),
|
|
64*1024, gus->gf1.dma1 > 3 ? 128*1024 : 64*1024);
|
|
|
|
pcm->info_flags = 0;
|
|
pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
|
|
if (capture) {
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_gf1_pcm_capture_ops);
|
|
if (gus->gf1.dma2 == gus->gf1.dma1)
|
|
pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX;
|
|
snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
|
|
SNDRV_DMA_TYPE_DEV, snd_dma_isa_data(),
|
|
64*1024, gus->gf1.dma2 > 3 ? 128*1024 : 64*1024);
|
|
}
|
|
strcpy(pcm->name, pcm->id);
|
|
if (gus->interwave) {
|
|
sprintf(pcm->name + strlen(pcm->name), " rev %c", gus->revision + 'A');
|
|
}
|
|
strcat(pcm->name, " (synth)");
|
|
gus->pcm = pcm;
|
|
|
|
if (gus->codec_flag)
|
|
kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control1, gus);
|
|
else
|
|
kctl = snd_ctl_new1(&snd_gf1_pcm_volume_control, gus);
|
|
if ((err = snd_ctl_add(card, kctl)) < 0)
|
|
return err;
|
|
kctl->id.index = control_index;
|
|
|
|
if (rpcm)
|
|
*rpcm = pcm;
|
|
return 0;
|
|
}
|
|
|