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linux-stable/sound/isa/sb/emu8000.c
Takashi Iwai 192c4cccd0 ALSA: control: Take controls_rwsem lock in snd_ctl_remove() 
So far, snd_ctl_remove() requires its caller to take
card->controls_rwsem manually before the call for avoiding possible
races.  However, many callers don't care and miss the locking.

Basically it's cumbersome and error-prone to enforce it to each
caller.  Moreover, card->controls_rwsem is a field that should be used
only by internal or proper helpers, and it's not to be touched at
random external places.

This patch is an attempt to make those calls more consistent: now
snd_ctl_remove() takes the card->controls_rwsem internally, just like
other API functions for kctls.  Since a few callers already take the
controls_rwsem locks, the patch removes those locks at the same time,
too.

Link: https://lore.kernel.org/r/20230718141304.1032-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-07-20 10:01:27 +02:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* and (c) 1999 Steve Ratcliffe <steve@parabola.demon.co.uk>
* Copyright (C) 1999-2000 Takashi Iwai <tiwai@suse.de>
*
* Routines for control of EMU8000 chip
*/
#include <linux/wait.h>
#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/export.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <sound/core.h>
#include <sound/emu8000.h>
#include <sound/emu8000_reg.h>
#include <linux/uaccess.h>
#include <linux/init.h>
#include <sound/control.h>
#include <sound/initval.h>
/*
* emu8000 register controls
*/
/*
* The following routines read and write registers on the emu8000. They
* should always be called via the EMU8000*READ/WRITE macros and never
* directly. The macros handle the port number and command word.
*/
/* Write a word */
void snd_emu8000_poke(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val)
{
unsigned long flags;
spin_lock_irqsave(&emu->reg_lock, flags);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
outw((unsigned short)val, port); /* Send data */
spin_unlock_irqrestore(&emu->reg_lock, flags);
}
/* Read a word */
unsigned short snd_emu8000_peek(struct snd_emu8000 *emu, unsigned int port, unsigned int reg)
{
unsigned short res;
unsigned long flags;
spin_lock_irqsave(&emu->reg_lock, flags);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
res = inw(port); /* Read data */
spin_unlock_irqrestore(&emu->reg_lock, flags);
return res;
}
/* Write a double word */
void snd_emu8000_poke_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg, unsigned int val)
{
unsigned long flags;
spin_lock_irqsave(&emu->reg_lock, flags);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
outw((unsigned short)val, port); /* Send low word of data */
outw((unsigned short)(val>>16), port+2); /* Send high word of data */
spin_unlock_irqrestore(&emu->reg_lock, flags);
}
/* Read a double word */
unsigned int snd_emu8000_peek_dw(struct snd_emu8000 *emu, unsigned int port, unsigned int reg)
{
unsigned short low;
unsigned int res;
unsigned long flags;
spin_lock_irqsave(&emu->reg_lock, flags);
if (reg != emu->last_reg) {
outw((unsigned short)reg, EMU8000_PTR(emu)); /* Set register */
emu->last_reg = reg;
}
low = inw(port); /* Read low word of data */
res = low + (inw(port+2) << 16);
spin_unlock_irqrestore(&emu->reg_lock, flags);
return res;
}
/*
* Set up / close a channel to be used for DMA.
*/
/*exported*/ void
snd_emu8000_dma_chan(struct snd_emu8000 *emu, int ch, int mode)
{
unsigned right_bit = (mode & EMU8000_RAM_RIGHT) ? 0x01000000 : 0;
mode &= EMU8000_RAM_MODE_MASK;
if (mode == EMU8000_RAM_CLOSE) {
EMU8000_CCCA_WRITE(emu, ch, 0);
EMU8000_DCYSUSV_WRITE(emu, ch, 0x807F);
return;
}
EMU8000_DCYSUSV_WRITE(emu, ch, 0x80);
EMU8000_VTFT_WRITE(emu, ch, 0);
EMU8000_CVCF_WRITE(emu, ch, 0);
EMU8000_PTRX_WRITE(emu, ch, 0x40000000);
EMU8000_CPF_WRITE(emu, ch, 0x40000000);
EMU8000_PSST_WRITE(emu, ch, 0);
EMU8000_CSL_WRITE(emu, ch, 0);
if (mode == EMU8000_RAM_WRITE) /* DMA write */
EMU8000_CCCA_WRITE(emu, ch, 0x06000000 | right_bit);
else /* DMA read */
EMU8000_CCCA_WRITE(emu, ch, 0x04000000 | right_bit);
}
/*
*/
static void
snd_emu8000_read_wait(struct snd_emu8000 *emu)
{
while ((EMU8000_SMALR_READ(emu) & 0x80000000) != 0) {
schedule_timeout_interruptible(1);
if (signal_pending(current))
break;
}
}
/*
*/
static void
snd_emu8000_write_wait(struct snd_emu8000 *emu)
{
while ((EMU8000_SMALW_READ(emu) & 0x80000000) != 0) {
schedule_timeout_interruptible(1);
if (signal_pending(current))
break;
}
}
/*
* detect a card at the given port
*/
static int
snd_emu8000_detect(struct snd_emu8000 *emu)
{
/* Initialise */
EMU8000_HWCF1_WRITE(emu, 0x0059);
EMU8000_HWCF2_WRITE(emu, 0x0020);
EMU8000_HWCF3_WRITE(emu, 0x0000);
/* Check for a recognisable emu8000 */
/*
if ((EMU8000_U1_READ(emu) & 0x000f) != 0x000c)
return -ENODEV;
*/
if ((EMU8000_HWCF1_READ(emu) & 0x007e) != 0x0058)
return -ENODEV;
if ((EMU8000_HWCF2_READ(emu) & 0x0003) != 0x0003)
return -ENODEV;
snd_printdd("EMU8000 [0x%lx]: Synth chip found\n",
emu->port1);
return 0;
}
/*
* intiailize audio channels
*/
static void
init_audio(struct snd_emu8000 *emu)
{
int ch;
/* turn off envelope engines */
for (ch = 0; ch < EMU8000_CHANNELS; ch++)
EMU8000_DCYSUSV_WRITE(emu, ch, 0x80);
/* reset all other parameters to zero */
for (ch = 0; ch < EMU8000_CHANNELS; ch++) {
EMU8000_ENVVOL_WRITE(emu, ch, 0);
EMU8000_ENVVAL_WRITE(emu, ch, 0);
EMU8000_DCYSUS_WRITE(emu, ch, 0);
EMU8000_ATKHLDV_WRITE(emu, ch, 0);
EMU8000_LFO1VAL_WRITE(emu, ch, 0);
EMU8000_ATKHLD_WRITE(emu, ch, 0);
EMU8000_LFO2VAL_WRITE(emu, ch, 0);
EMU8000_IP_WRITE(emu, ch, 0);
EMU8000_IFATN_WRITE(emu, ch, 0);
EMU8000_PEFE_WRITE(emu, ch, 0);
EMU8000_FMMOD_WRITE(emu, ch, 0);
EMU8000_TREMFRQ_WRITE(emu, ch, 0);
EMU8000_FM2FRQ2_WRITE(emu, ch, 0);
EMU8000_PTRX_WRITE(emu, ch, 0);
EMU8000_VTFT_WRITE(emu, ch, 0);
EMU8000_PSST_WRITE(emu, ch, 0);
EMU8000_CSL_WRITE(emu, ch, 0);
EMU8000_CCCA_WRITE(emu, ch, 0);
}
for (ch = 0; ch < EMU8000_CHANNELS; ch++) {
EMU8000_CPF_WRITE(emu, ch, 0);
EMU8000_CVCF_WRITE(emu, ch, 0);
}
}
/*
* initialize DMA address
*/
static void
init_dma(struct snd_emu8000 *emu)
{
EMU8000_SMALR_WRITE(emu, 0);
EMU8000_SMARR_WRITE(emu, 0);
EMU8000_SMALW_WRITE(emu, 0);
EMU8000_SMARW_WRITE(emu, 0);
}
/*
* initialization arrays; from ADIP
*/
static const unsigned short init1[128] = {
0x03ff, 0x0030, 0x07ff, 0x0130, 0x0bff, 0x0230, 0x0fff, 0x0330,
0x13ff, 0x0430, 0x17ff, 0x0530, 0x1bff, 0x0630, 0x1fff, 0x0730,
0x23ff, 0x0830, 0x27ff, 0x0930, 0x2bff, 0x0a30, 0x2fff, 0x0b30,
0x33ff, 0x0c30, 0x37ff, 0x0d30, 0x3bff, 0x0e30, 0x3fff, 0x0f30,
0x43ff, 0x0030, 0x47ff, 0x0130, 0x4bff, 0x0230, 0x4fff, 0x0330,
0x53ff, 0x0430, 0x57ff, 0x0530, 0x5bff, 0x0630, 0x5fff, 0x0730,
0x63ff, 0x0830, 0x67ff, 0x0930, 0x6bff, 0x0a30, 0x6fff, 0x0b30,
0x73ff, 0x0c30, 0x77ff, 0x0d30, 0x7bff, 0x0e30, 0x7fff, 0x0f30,
0x83ff, 0x0030, 0x87ff, 0x0130, 0x8bff, 0x0230, 0x8fff, 0x0330,
0x93ff, 0x0430, 0x97ff, 0x0530, 0x9bff, 0x0630, 0x9fff, 0x0730,
0xa3ff, 0x0830, 0xa7ff, 0x0930, 0xabff, 0x0a30, 0xafff, 0x0b30,
0xb3ff, 0x0c30, 0xb7ff, 0x0d30, 0xbbff, 0x0e30, 0xbfff, 0x0f30,
0xc3ff, 0x0030, 0xc7ff, 0x0130, 0xcbff, 0x0230, 0xcfff, 0x0330,
0xd3ff, 0x0430, 0xd7ff, 0x0530, 0xdbff, 0x0630, 0xdfff, 0x0730,
0xe3ff, 0x0830, 0xe7ff, 0x0930, 0xebff, 0x0a30, 0xefff, 0x0b30,
0xf3ff, 0x0c30, 0xf7ff, 0x0d30, 0xfbff, 0x0e30, 0xffff, 0x0f30,
};
static const unsigned short init2[128] = {
0x03ff, 0x8030, 0x07ff, 0x8130, 0x0bff, 0x8230, 0x0fff, 0x8330,
0x13ff, 0x8430, 0x17ff, 0x8530, 0x1bff, 0x8630, 0x1fff, 0x8730,
0x23ff, 0x8830, 0x27ff, 0x8930, 0x2bff, 0x8a30, 0x2fff, 0x8b30,
0x33ff, 0x8c30, 0x37ff, 0x8d30, 0x3bff, 0x8e30, 0x3fff, 0x8f30,
0x43ff, 0x8030, 0x47ff, 0x8130, 0x4bff, 0x8230, 0x4fff, 0x8330,
0x53ff, 0x8430, 0x57ff, 0x8530, 0x5bff, 0x8630, 0x5fff, 0x8730,
0x63ff, 0x8830, 0x67ff, 0x8930, 0x6bff, 0x8a30, 0x6fff, 0x8b30,
0x73ff, 0x8c30, 0x77ff, 0x8d30, 0x7bff, 0x8e30, 0x7fff, 0x8f30,
0x83ff, 0x8030, 0x87ff, 0x8130, 0x8bff, 0x8230, 0x8fff, 0x8330,
0x93ff, 0x8430, 0x97ff, 0x8530, 0x9bff, 0x8630, 0x9fff, 0x8730,
0xa3ff, 0x8830, 0xa7ff, 0x8930, 0xabff, 0x8a30, 0xafff, 0x8b30,
0xb3ff, 0x8c30, 0xb7ff, 0x8d30, 0xbbff, 0x8e30, 0xbfff, 0x8f30,
0xc3ff, 0x8030, 0xc7ff, 0x8130, 0xcbff, 0x8230, 0xcfff, 0x8330,
0xd3ff, 0x8430, 0xd7ff, 0x8530, 0xdbff, 0x8630, 0xdfff, 0x8730,
0xe3ff, 0x8830, 0xe7ff, 0x8930, 0xebff, 0x8a30, 0xefff, 0x8b30,
0xf3ff, 0x8c30, 0xf7ff, 0x8d30, 0xfbff, 0x8e30, 0xffff, 0x8f30,
};
static const unsigned short init3[128] = {
0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x8F7C, 0x167E, 0xF254,
0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x8BAA, 0x1B6D, 0xF234,
0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x86E7, 0x229E, 0xF224,
0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x87F6, 0x2C28, 0xF254,
0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x8F02, 0x1341, 0xF264,
0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x8FA9, 0x3EB5, 0xF294,
0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0xC4C3, 0x3EBB, 0xC5C3,
0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x8671, 0x14FD, 0x8287,
0x3EBC, 0xE610, 0x3EC8, 0x8C7B, 0x031A, 0x87E6, 0x3EC8, 0x86F7,
0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x821F, 0x3ECA, 0x8386,
0x3EC1, 0x8C03, 0x3EC9, 0x831E, 0x3ECA, 0x8C4C, 0x3EBF, 0x8C55,
0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x8EAD, 0x3EC8, 0xD308,
0x3EC2, 0x8F7E, 0x3ECB, 0x8219, 0x3ECB, 0xD26E, 0x3EC5, 0x831F,
0x3EC6, 0xC308, 0x3EC3, 0xB2FF, 0x3EC9, 0x8265, 0x3EC9, 0x8319,
0x1342, 0xD36E, 0x3EC7, 0xB3FF, 0x0000, 0x8365, 0x1420, 0x9570,
};
static const unsigned short init4[128] = {
0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5,
0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x0F7C, 0x167E, 0x7254,
0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x0BAA, 0x1B6D, 0x7234,
0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x06E7, 0x229E, 0x7224,
0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x07F6, 0x2C28, 0x7254,
0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x0F02, 0x1341, 0x7264,
0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x0FA9, 0x3EB5, 0x7294,
0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0x44C3, 0x3EBB, 0x45C3,
0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x0671, 0x14FD, 0x0287,
0x3EBC, 0xE610, 0x3EC8, 0x0C7B, 0x031A, 0x07E6, 0x3EC8, 0x86F7,
0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x021F, 0x3ECA, 0x0386,
0x3EC1, 0x0C03, 0x3EC9, 0x031E, 0x3ECA, 0x8C4C, 0x3EBF, 0x0C55,
0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x0EAD, 0x3EC8, 0xD308,
0x3EC2, 0x8F7E, 0x3ECB, 0x0219, 0x3ECB, 0xD26E, 0x3EC5, 0x031F,
0x3EC6, 0xC308, 0x3EC3, 0x32FF, 0x3EC9, 0x0265, 0x3EC9, 0x8319,
0x1342, 0xD36E, 0x3EC7, 0x33FF, 0x0000, 0x8365, 0x1420, 0x9570,
};
/* send an initialization array
* Taken from the oss driver, not obvious from the doc how this
* is meant to work
*/
static void
send_array(struct snd_emu8000 *emu, const unsigned short *data, int size)
{
int i;
const unsigned short *p;
p = data;
for (i = 0; i < size; i++, p++)
EMU8000_INIT1_WRITE(emu, i, *p);
for (i = 0; i < size; i++, p++)
EMU8000_INIT2_WRITE(emu, i, *p);
for (i = 0; i < size; i++, p++)
EMU8000_INIT3_WRITE(emu, i, *p);
for (i = 0; i < size; i++, p++)
EMU8000_INIT4_WRITE(emu, i, *p);
}
/*
* Send initialization arrays to start up, this just follows the
* initialisation sequence in the adip.
*/
static void
init_arrays(struct snd_emu8000 *emu)
{
send_array(emu, init1, ARRAY_SIZE(init1)/4);
msleep((1024 * 1000) / 44100); /* wait for 1024 clocks */
send_array(emu, init2, ARRAY_SIZE(init2)/4);
send_array(emu, init3, ARRAY_SIZE(init3)/4);
EMU8000_HWCF4_WRITE(emu, 0);
EMU8000_HWCF5_WRITE(emu, 0x83);
EMU8000_HWCF6_WRITE(emu, 0x8000);
send_array(emu, init4, ARRAY_SIZE(init4)/4);
}
#define UNIQUE_ID1 0xa5b9
#define UNIQUE_ID2 0x9d53
/*
* Size the onboard memory.
* This is written so as not to need arbitrary delays after the write. It
* seems that the only way to do this is to use the one channel and keep
* reallocating between read and write.
*/
static void
size_dram(struct snd_emu8000 *emu)
{
int i, size;
if (emu->dram_checked)
return;
size = 0;
/* write out a magic number */
snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_WRITE);
snd_emu8000_dma_chan(emu, 1, EMU8000_RAM_READ);
EMU8000_SMALW_WRITE(emu, EMU8000_DRAM_OFFSET);
EMU8000_SMLD_WRITE(emu, UNIQUE_ID1);
snd_emu8000_init_fm(emu); /* This must really be here and not 2 lines back even */
snd_emu8000_write_wait(emu);
/*
* Detect first 512 KiB. If a write succeeds at the beginning of a
* 512 KiB page we assume that the whole page is there.
*/
EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET);
EMU8000_SMLD_READ(emu); /* discard stale data */
if (EMU8000_SMLD_READ(emu) != UNIQUE_ID1)
goto skip_detect; /* No RAM */
snd_emu8000_read_wait(emu);
for (size = 512 * 1024; size < EMU8000_MAX_DRAM; size += 512 * 1024) {
/* Write a unique data on the test address.
* if the address is out of range, the data is written on
* 0x200000(=EMU8000_DRAM_OFFSET). Then the id word is
* changed by this data.
*/
/*snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_WRITE);*/
EMU8000_SMALW_WRITE(emu, EMU8000_DRAM_OFFSET + (size>>1));
EMU8000_SMLD_WRITE(emu, UNIQUE_ID2);
snd_emu8000_write_wait(emu);
/*
* read the data on the just written DRAM address
* if not the same then we have reached the end of ram.
*/
/*snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_READ);*/
EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET + (size>>1));
/*snd_emu8000_read_wait(emu);*/
EMU8000_SMLD_READ(emu); /* discard stale data */
if (EMU8000_SMLD_READ(emu) != UNIQUE_ID2)
break; /* no memory at this address */
snd_emu8000_read_wait(emu);
/*
* If it is the same it could be that the address just
* wraps back to the beginning; so check to see if the
* initial value has been overwritten.
*/
EMU8000_SMALR_WRITE(emu, EMU8000_DRAM_OFFSET);
EMU8000_SMLD_READ(emu); /* discard stale data */
if (EMU8000_SMLD_READ(emu) != UNIQUE_ID1)
break; /* we must have wrapped around */
snd_emu8000_read_wait(emu);
/* Otherwise, it's valid memory. */
}
skip_detect:
/* wait until FULL bit in SMAxW register is false */
for (i = 0; i < 10000; i++) {
if ((EMU8000_SMALW_READ(emu) & 0x80000000) == 0)
break;
schedule_timeout_interruptible(1);
if (signal_pending(current))
break;
}
snd_emu8000_dma_chan(emu, 0, EMU8000_RAM_CLOSE);
snd_emu8000_dma_chan(emu, 1, EMU8000_RAM_CLOSE);
pr_info("EMU8000 [0x%lx]: %d KiB on-board DRAM detected\n",
emu->port1, size/1024);
emu->mem_size = size;
emu->dram_checked = 1;
}
/*
* Initiailise the FM section. You have to do this to use sample RAM
* and therefore lose 2 voices.
*/
/*exported*/ void
snd_emu8000_init_fm(struct snd_emu8000 *emu)
{
unsigned long flags;
/* Initialize the last two channels for DRAM refresh and producing
the reverb and chorus effects for Yamaha OPL-3 synthesizer */
/* 31: FM left channel, 0xffffe0-0xffffe8 */
EMU8000_DCYSUSV_WRITE(emu, 30, 0x80);
EMU8000_PSST_WRITE(emu, 30, 0xFFFFFFE0); /* full left */
EMU8000_CSL_WRITE(emu, 30, 0x00FFFFE8 | (emu->fm_chorus_depth << 24));
EMU8000_PTRX_WRITE(emu, 30, (emu->fm_reverb_depth << 8));
EMU8000_CPF_WRITE(emu, 30, 0);
EMU8000_CCCA_WRITE(emu, 30, 0x00FFFFE3);
/* 32: FM right channel, 0xfffff0-0xfffff8 */
EMU8000_DCYSUSV_WRITE(emu, 31, 0x80);
EMU8000_PSST_WRITE(emu, 31, 0x00FFFFF0); /* full right */
EMU8000_CSL_WRITE(emu, 31, 0x00FFFFF8 | (emu->fm_chorus_depth << 24));
EMU8000_PTRX_WRITE(emu, 31, (emu->fm_reverb_depth << 8));
EMU8000_CPF_WRITE(emu, 31, 0x8000);
EMU8000_CCCA_WRITE(emu, 31, 0x00FFFFF3);
snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0);
spin_lock_irqsave(&emu->reg_lock, flags);
while (!(inw(EMU8000_PTR(emu)) & 0x1000))
;
while ((inw(EMU8000_PTR(emu)) & 0x1000))
;
spin_unlock_irqrestore(&emu->reg_lock, flags);
snd_emu8000_poke((emu), EMU8000_DATA0(emu), EMU8000_CMD(1, (30)), 0x4828);
/* this is really odd part.. */
outb(0x3C, EMU8000_PTR(emu));
outb(0, EMU8000_DATA1(emu));
/* skew volume & cutoff */
EMU8000_VTFT_WRITE(emu, 30, 0x8000FFFF);
EMU8000_VTFT_WRITE(emu, 31, 0x8000FFFF);
}
/*
* The main initialization routine.
*/
static void
snd_emu8000_init_hw(struct snd_emu8000 *emu)
{
int i;
emu->last_reg = 0xffff; /* reset the last register index */
/* initialize hardware configuration */
EMU8000_HWCF1_WRITE(emu, 0x0059);
EMU8000_HWCF2_WRITE(emu, 0x0020);
/* disable audio; this seems to reduce a clicking noise a bit.. */
EMU8000_HWCF3_WRITE(emu, 0);
/* initialize audio channels */
init_audio(emu);
/* initialize DMA */
init_dma(emu);
/* initialize init arrays */
init_arrays(emu);
/*
* Initialize the FM section of the AWE32, this is needed
* for DRAM refresh as well
*/
snd_emu8000_init_fm(emu);
/* terminate all voices */
for (i = 0; i < EMU8000_DRAM_VOICES; i++)
EMU8000_DCYSUSV_WRITE(emu, 0, 0x807F);
/* check DRAM memory size */
size_dram(emu);
/* enable audio */
EMU8000_HWCF3_WRITE(emu, 0x4);
/* set equzlier, chorus and reverb modes */
snd_emu8000_update_equalizer(emu);
snd_emu8000_update_chorus_mode(emu);
snd_emu8000_update_reverb_mode(emu);
}
/*----------------------------------------------------------------
* Bass/Treble Equalizer
*----------------------------------------------------------------*/
static const unsigned short bass_parm[12][3] = {
{0xD26A, 0xD36A, 0x0000}, /* -12 dB */
{0xD25B, 0xD35B, 0x0000}, /* -8 */
{0xD24C, 0xD34C, 0x0000}, /* -6 */
{0xD23D, 0xD33D, 0x0000}, /* -4 */
{0xD21F, 0xD31F, 0x0000}, /* -2 */
{0xC208, 0xC308, 0x0001}, /* 0 (HW default) */
{0xC219, 0xC319, 0x0001}, /* +2 */
{0xC22A, 0xC32A, 0x0001}, /* +4 */
{0xC24C, 0xC34C, 0x0001}, /* +6 */
{0xC26E, 0xC36E, 0x0001}, /* +8 */
{0xC248, 0xC384, 0x0002}, /* +10 */
{0xC26A, 0xC36A, 0x0002}, /* +12 dB */
};
static const unsigned short treble_parm[12][9] = {
{0x821E, 0xC26A, 0x031E, 0xC36A, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, /* -12 dB */
{0x821E, 0xC25B, 0x031E, 0xC35B, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
{0x821E, 0xC24C, 0x031E, 0xC34C, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
{0x821E, 0xC23D, 0x031E, 0xC33D, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
{0x821E, 0xC21F, 0x031E, 0xC31F, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001},
{0x821E, 0xD208, 0x031E, 0xD308, 0x021E, 0xD208, 0x831E, 0xD308, 0x0002},
{0x821E, 0xD208, 0x031E, 0xD308, 0x021D, 0xD219, 0x831D, 0xD319, 0x0002},
{0x821E, 0xD208, 0x031E, 0xD308, 0x021C, 0xD22A, 0x831C, 0xD32A, 0x0002},
{0x821E, 0xD208, 0x031E, 0xD308, 0x021A, 0xD24C, 0x831A, 0xD34C, 0x0002},
{0x821E, 0xD208, 0x031E, 0xD308, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, /* +8 (HW default) */
{0x821D, 0xD219, 0x031D, 0xD319, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002},
{0x821C, 0xD22A, 0x031C, 0xD32A, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002} /* +12 dB */
};
/*
* set Emu8000 digital equalizer; from 0 to 11 [-12dB - 12dB]
*/
/*exported*/ void
snd_emu8000_update_equalizer(struct snd_emu8000 *emu)
{
unsigned short w;
int bass = emu->bass_level;
int treble = emu->treble_level;
if (bass < 0 || bass > 11 || treble < 0 || treble > 11)
return;
EMU8000_INIT4_WRITE(emu, 0x01, bass_parm[bass][0]);
EMU8000_INIT4_WRITE(emu, 0x11, bass_parm[bass][1]);
EMU8000_INIT3_WRITE(emu, 0x11, treble_parm[treble][0]);
EMU8000_INIT3_WRITE(emu, 0x13, treble_parm[treble][1]);
EMU8000_INIT3_WRITE(emu, 0x1b, treble_parm[treble][2]);
EMU8000_INIT4_WRITE(emu, 0x07, treble_parm[treble][3]);
EMU8000_INIT4_WRITE(emu, 0x0b, treble_parm[treble][4]);
EMU8000_INIT4_WRITE(emu, 0x0d, treble_parm[treble][5]);
EMU8000_INIT4_WRITE(emu, 0x17, treble_parm[treble][6]);
EMU8000_INIT4_WRITE(emu, 0x19, treble_parm[treble][7]);
w = bass_parm[bass][2] + treble_parm[treble][8];
EMU8000_INIT4_WRITE(emu, 0x15, (unsigned short)(w + 0x0262));
EMU8000_INIT4_WRITE(emu, 0x1d, (unsigned short)(w + 0x8362));
}
/*----------------------------------------------------------------
* Chorus mode control
*----------------------------------------------------------------*/
/*
* chorus mode parameters
*/
#define SNDRV_EMU8000_CHORUS_1 0
#define SNDRV_EMU8000_CHORUS_2 1
#define SNDRV_EMU8000_CHORUS_3 2
#define SNDRV_EMU8000_CHORUS_4 3
#define SNDRV_EMU8000_CHORUS_FEEDBACK 4
#define SNDRV_EMU8000_CHORUS_FLANGER 5
#define SNDRV_EMU8000_CHORUS_SHORTDELAY 6
#define SNDRV_EMU8000_CHORUS_SHORTDELAY2 7
#define SNDRV_EMU8000_CHORUS_PREDEFINED 8
/* user can define chorus modes up to 32 */
#define SNDRV_EMU8000_CHORUS_NUMBERS 32
struct soundfont_chorus_fx {
unsigned short feedback; /* feedback level (0xE600-0xE6FF) */
unsigned short delay_offset; /* delay (0-0x0DA3) [1/44100 sec] */
unsigned short lfo_depth; /* LFO depth (0xBC00-0xBCFF) */
unsigned int delay; /* right delay (0-0xFFFFFFFF) [1/256/44100 sec] */
unsigned int lfo_freq; /* LFO freq LFO freq (0-0xFFFFFFFF) */
};
/* 5 parameters for each chorus mode; 3 x 16bit, 2 x 32bit */
static char chorus_defined[SNDRV_EMU8000_CHORUS_NUMBERS];
static struct soundfont_chorus_fx chorus_parm[SNDRV_EMU8000_CHORUS_NUMBERS] = {
{0xE600, 0x03F6, 0xBC2C ,0x00000000, 0x0000006D}, /* chorus 1 */
{0xE608, 0x031A, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 2 */
{0xE610, 0x031A, 0xBC84, 0x00000000, 0x00000083}, /* chorus 3 */
{0xE620, 0x0269, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 4 */
{0xE680, 0x04D3, 0xBCA6, 0x00000000, 0x0000005B}, /* feedback */
{0xE6E0, 0x044E, 0xBC37, 0x00000000, 0x00000026}, /* flanger */
{0xE600, 0x0B06, 0xBC00, 0x0006E000, 0x00000083}, /* short delay */
{0xE6C0, 0x0B06, 0xBC00, 0x0006E000, 0x00000083}, /* short delay + feedback */
};
/*exported*/ int
snd_emu8000_load_chorus_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len)
{
struct soundfont_chorus_fx rec;
if (mode < SNDRV_EMU8000_CHORUS_PREDEFINED || mode >= SNDRV_EMU8000_CHORUS_NUMBERS) {
snd_printk(KERN_WARNING "invalid chorus mode %d for uploading\n", mode);
return -EINVAL;
}
if (len < (long)sizeof(rec) || copy_from_user(&rec, buf, sizeof(rec)))
return -EFAULT;
chorus_parm[mode] = rec;
chorus_defined[mode] = 1;
return 0;
}
/*exported*/ void
snd_emu8000_update_chorus_mode(struct snd_emu8000 *emu)
{
int effect = emu->chorus_mode;
if (effect < 0 || effect >= SNDRV_EMU8000_CHORUS_NUMBERS ||
(effect >= SNDRV_EMU8000_CHORUS_PREDEFINED && !chorus_defined[effect]))
return;
EMU8000_INIT3_WRITE(emu, 0x09, chorus_parm[effect].feedback);
EMU8000_INIT3_WRITE(emu, 0x0c, chorus_parm[effect].delay_offset);
EMU8000_INIT4_WRITE(emu, 0x03, chorus_parm[effect].lfo_depth);
EMU8000_HWCF4_WRITE(emu, chorus_parm[effect].delay);
EMU8000_HWCF5_WRITE(emu, chorus_parm[effect].lfo_freq);
EMU8000_HWCF6_WRITE(emu, 0x8000);
EMU8000_HWCF7_WRITE(emu, 0x0000);
}
/*----------------------------------------------------------------
* Reverb mode control
*----------------------------------------------------------------*/
/*
* reverb mode parameters
*/
#define SNDRV_EMU8000_REVERB_ROOM1 0
#define SNDRV_EMU8000_REVERB_ROOM2 1
#define SNDRV_EMU8000_REVERB_ROOM3 2
#define SNDRV_EMU8000_REVERB_HALL1 3
#define SNDRV_EMU8000_REVERB_HALL2 4
#define SNDRV_EMU8000_REVERB_PLATE 5
#define SNDRV_EMU8000_REVERB_DELAY 6
#define SNDRV_EMU8000_REVERB_PANNINGDELAY 7
#define SNDRV_EMU8000_REVERB_PREDEFINED 8
/* user can define reverb modes up to 32 */
#define SNDRV_EMU8000_REVERB_NUMBERS 32
struct soundfont_reverb_fx {
unsigned short parms[28];
};
/* reverb mode settings; write the following 28 data of 16 bit length
* on the corresponding ports in the reverb_cmds array
*/
static char reverb_defined[SNDRV_EMU8000_CHORUS_NUMBERS];
static struct soundfont_reverb_fx reverb_parm[SNDRV_EMU8000_REVERB_NUMBERS] = {
{{ /* room 1 */
0xB488, 0xA450, 0x9550, 0x84B5, 0x383A, 0x3EB5, 0x72F4,
0x72A4, 0x7254, 0x7204, 0x7204, 0x7204, 0x4416, 0x4516,
0xA490, 0xA590, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
}},
{{ /* room 2 */
0xB488, 0xA458, 0x9558, 0x84B5, 0x383A, 0x3EB5, 0x7284,
0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548,
0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
}},
{{ /* room 3 */
0xB488, 0xA460, 0x9560, 0x84B5, 0x383A, 0x3EB5, 0x7284,
0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4416, 0x4516,
0xA490, 0xA590, 0x842C, 0x852C, 0x842C, 0x852C, 0x842B,
0x852B, 0x842B, 0x852B, 0x842A, 0x852A, 0x842A, 0x852A,
}},
{{ /* hall 1 */
0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7284,
0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548,
0xA440, 0xA540, 0x842B, 0x852B, 0x842B, 0x852B, 0x842A,
0x852A, 0x842A, 0x852A, 0x8429, 0x8529, 0x8429, 0x8529,
}},
{{ /* hall 2 */
0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7254,
0x7234, 0x7224, 0x7254, 0x7264, 0x7294, 0x44C3, 0x45C3,
0xA404, 0xA504, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
}},
{{ /* plate */
0xB4FF, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7234,
0x7234, 0x7234, 0x7234, 0x7234, 0x7234, 0x4448, 0x4548,
0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429,
0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528,
}},
{{ /* delay */
0xB4FF, 0xA470, 0x9500, 0x84B5, 0x333A, 0x39B5, 0x7204,
0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500,
0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420,
0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520,
}},
{{ /* panning delay */
0xB4FF, 0xA490, 0x9590, 0x8474, 0x333A, 0x39B5, 0x7204,
0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500,
0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420,
0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520,
}},
};
enum { DATA1, DATA2 };
#define AWE_INIT1(c) EMU8000_CMD(2,c), DATA1
#define AWE_INIT2(c) EMU8000_CMD(2,c), DATA2
#define AWE_INIT3(c) EMU8000_CMD(3,c), DATA1
#define AWE_INIT4(c) EMU8000_CMD(3,c), DATA2
static struct reverb_cmd_pair {
unsigned short cmd, port;
} reverb_cmds[28] = {
{AWE_INIT1(0x03)}, {AWE_INIT1(0x05)}, {AWE_INIT4(0x1F)}, {AWE_INIT1(0x07)},
{AWE_INIT2(0x14)}, {AWE_INIT2(0x16)}, {AWE_INIT1(0x0F)}, {AWE_INIT1(0x17)},
{AWE_INIT1(0x1F)}, {AWE_INIT2(0x07)}, {AWE_INIT2(0x0F)}, {AWE_INIT2(0x17)},
{AWE_INIT2(0x1D)}, {AWE_INIT2(0x1F)}, {AWE_INIT3(0x01)}, {AWE_INIT3(0x03)},
{AWE_INIT1(0x09)}, {AWE_INIT1(0x0B)}, {AWE_INIT1(0x11)}, {AWE_INIT1(0x13)},
{AWE_INIT1(0x19)}, {AWE_INIT1(0x1B)}, {AWE_INIT2(0x01)}, {AWE_INIT2(0x03)},
{AWE_INIT2(0x09)}, {AWE_INIT2(0x0B)}, {AWE_INIT2(0x11)}, {AWE_INIT2(0x13)},
};
/*exported*/ int
snd_emu8000_load_reverb_fx(struct snd_emu8000 *emu, int mode, const void __user *buf, long len)
{
struct soundfont_reverb_fx rec;
if (mode < SNDRV_EMU8000_REVERB_PREDEFINED || mode >= SNDRV_EMU8000_REVERB_NUMBERS) {
snd_printk(KERN_WARNING "invalid reverb mode %d for uploading\n", mode);
return -EINVAL;
}
if (len < (long)sizeof(rec) || copy_from_user(&rec, buf, sizeof(rec)))
return -EFAULT;
reverb_parm[mode] = rec;
reverb_defined[mode] = 1;
return 0;
}
/*exported*/ void
snd_emu8000_update_reverb_mode(struct snd_emu8000 *emu)
{
int effect = emu->reverb_mode;
int i;
if (effect < 0 || effect >= SNDRV_EMU8000_REVERB_NUMBERS ||
(effect >= SNDRV_EMU8000_REVERB_PREDEFINED && !reverb_defined[effect]))
return;
for (i = 0; i < 28; i++) {
int port;
if (reverb_cmds[i].port == DATA1)
port = EMU8000_DATA1(emu);
else
port = EMU8000_DATA2(emu);
snd_emu8000_poke(emu, port, reverb_cmds[i].cmd, reverb_parm[effect].parms[i]);
}
}
/*----------------------------------------------------------------
* mixer interface
*----------------------------------------------------------------*/
/*
* bass/treble
*/
static int mixer_bass_treble_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 = 11;
return 0;
}
static int mixer_bass_treble_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->treble_level : emu->bass_level;
return 0;
}
static int mixer_bass_treble_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int change;
unsigned short val1;
val1 = ucontrol->value.integer.value[0] % 12;
spin_lock_irqsave(&emu->control_lock, flags);
if (kcontrol->private_value) {
change = val1 != emu->treble_level;
emu->treble_level = val1;
} else {
change = val1 != emu->bass_level;
emu->bass_level = val1;
}
spin_unlock_irqrestore(&emu->control_lock, flags);
snd_emu8000_update_equalizer(emu);
return change;
}
static const struct snd_kcontrol_new mixer_bass_control =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Synth Tone Control - Bass",
.info = mixer_bass_treble_info,
.get = mixer_bass_treble_get,
.put = mixer_bass_treble_put,
.private_value = 0,
};
static const struct snd_kcontrol_new mixer_treble_control =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Synth Tone Control - Treble",
.info = mixer_bass_treble_info,
.get = mixer_bass_treble_get,
.put = mixer_bass_treble_put,
.private_value = 1,
};
/*
* chorus/reverb mode
*/
static int mixer_chorus_reverb_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 = kcontrol->private_value ? (SNDRV_EMU8000_CHORUS_NUMBERS-1) : (SNDRV_EMU8000_REVERB_NUMBERS-1);
return 0;
}
static int mixer_chorus_reverb_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->chorus_mode : emu->reverb_mode;
return 0;
}
static int mixer_chorus_reverb_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int change;
unsigned short val1;
spin_lock_irqsave(&emu->control_lock, flags);
if (kcontrol->private_value) {
val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_CHORUS_NUMBERS;
change = val1 != emu->chorus_mode;
emu->chorus_mode = val1;
} else {
val1 = ucontrol->value.integer.value[0] % SNDRV_EMU8000_REVERB_NUMBERS;
change = val1 != emu->reverb_mode;
emu->reverb_mode = val1;
}
spin_unlock_irqrestore(&emu->control_lock, flags);
if (change) {
if (kcontrol->private_value)
snd_emu8000_update_chorus_mode(emu);
else
snd_emu8000_update_reverb_mode(emu);
}
return change;
}
static const struct snd_kcontrol_new mixer_chorus_mode_control =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Chorus Mode",
.info = mixer_chorus_reverb_info,
.get = mixer_chorus_reverb_get,
.put = mixer_chorus_reverb_put,
.private_value = 1,
};
static const struct snd_kcontrol_new mixer_reverb_mode_control =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Reverb Mode",
.info = mixer_chorus_reverb_info,
.get = mixer_chorus_reverb_get,
.put = mixer_chorus_reverb_put,
.private_value = 0,
};
/*
* FM OPL3 chorus/reverb depth
*/
static int mixer_fm_depth_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 = 255;
return 0;
}
static int mixer_fm_depth_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = kcontrol->private_value ? emu->fm_chorus_depth : emu->fm_reverb_depth;
return 0;
}
static int mixer_fm_depth_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_emu8000 *emu = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int change;
unsigned short val1;
val1 = ucontrol->value.integer.value[0] % 256;
spin_lock_irqsave(&emu->control_lock, flags);
if (kcontrol->private_value) {
change = val1 != emu->fm_chorus_depth;
emu->fm_chorus_depth = val1;
} else {
change = val1 != emu->fm_reverb_depth;
emu->fm_reverb_depth = val1;
}
spin_unlock_irqrestore(&emu->control_lock, flags);
if (change)
snd_emu8000_init_fm(emu);
return change;
}
static const struct snd_kcontrol_new mixer_fm_chorus_depth_control =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "FM Chorus Depth",
.info = mixer_fm_depth_info,
.get = mixer_fm_depth_get,
.put = mixer_fm_depth_put,
.private_value = 1,
};
static const struct snd_kcontrol_new mixer_fm_reverb_depth_control =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "FM Reverb Depth",
.info = mixer_fm_depth_info,
.get = mixer_fm_depth_get,
.put = mixer_fm_depth_put,
.private_value = 0,
};
static const struct snd_kcontrol_new *mixer_defs[EMU8000_NUM_CONTROLS] = {
&mixer_bass_control,
&mixer_treble_control,
&mixer_chorus_mode_control,
&mixer_reverb_mode_control,
&mixer_fm_chorus_depth_control,
&mixer_fm_reverb_depth_control,
};
/*
* create and attach mixer elements for WaveTable treble/bass controls
*/
static int
snd_emu8000_create_mixer(struct snd_card *card, struct snd_emu8000 *emu)
{
struct snd_kcontrol *kctl;
int i, err = 0;
if (snd_BUG_ON(!emu || !card))
return -EINVAL;
spin_lock_init(&emu->control_lock);
memset(emu->controls, 0, sizeof(emu->controls));
for (i = 0; i < EMU8000_NUM_CONTROLS; i++) {
kctl = snd_ctl_new1(mixer_defs[i], emu);
err = snd_ctl_add(card, kctl);
if (err < 0)
goto __error;
emu->controls[i] = kctl;
}
return 0;
__error:
for (i = 0; i < EMU8000_NUM_CONTROLS; i++) {
if (emu->controls[i])
snd_ctl_remove(card, emu->controls[i]);
}
return err;
}
/*
* initialize and register emu8000 synth device.
*/
int
snd_emu8000_new(struct snd_card *card, int index, long port, int seq_ports,
struct snd_seq_device **awe_ret)
{
struct snd_seq_device *awe;
struct snd_emu8000 *hw;
int err;
if (awe_ret)
*awe_ret = NULL;
if (seq_ports <= 0)
return 0;
hw = devm_kzalloc(card->dev, sizeof(*hw), GFP_KERNEL);
if (hw == NULL)
return -ENOMEM;
spin_lock_init(&hw->reg_lock);
hw->index = index;
hw->port1 = port;
hw->port2 = port + 0x400;
hw->port3 = port + 0x800;
if (!devm_request_region(card->dev, hw->port1, 4, "Emu8000-1") ||
!devm_request_region(card->dev, hw->port2, 4, "Emu8000-2") ||
!devm_request_region(card->dev, hw->port3, 4, "Emu8000-3")) {
snd_printk(KERN_ERR "sbawe: can't grab ports 0x%lx, 0x%lx, 0x%lx\n", hw->port1, hw->port2, hw->port3);
return -EBUSY;
}
hw->mem_size = 0;
hw->card = card;
hw->seq_ports = seq_ports;
hw->bass_level = 5;
hw->treble_level = 9;
hw->chorus_mode = 2;
hw->reverb_mode = 4;
hw->fm_chorus_depth = 0;
hw->fm_reverb_depth = 0;
if (snd_emu8000_detect(hw) < 0)
return -ENODEV;
snd_emu8000_init_hw(hw);
err = snd_emu8000_create_mixer(card, hw);
if (err < 0)
return err;
#if IS_ENABLED(CONFIG_SND_SEQUENCER)
if (snd_seq_device_new(card, index, SNDRV_SEQ_DEV_ID_EMU8000,
sizeof(struct snd_emu8000*), &awe) >= 0) {
strcpy(awe->name, "EMU-8000");
*(struct snd_emu8000 **)SNDRV_SEQ_DEVICE_ARGPTR(awe) = hw;
}
#else
awe = NULL;
#endif
if (awe_ret)
*awe_ret = awe;
return 0;
}
/*
* exported stuff
*/
EXPORT_SYMBOL(snd_emu8000_poke);
EXPORT_SYMBOL(snd_emu8000_peek);
EXPORT_SYMBOL(snd_emu8000_poke_dw);
EXPORT_SYMBOL(snd_emu8000_peek_dw);
EXPORT_SYMBOL(snd_emu8000_dma_chan);
EXPORT_SYMBOL(snd_emu8000_init_fm);
EXPORT_SYMBOL(snd_emu8000_load_chorus_fx);
EXPORT_SYMBOL(snd_emu8000_load_reverb_fx);
EXPORT_SYMBOL(snd_emu8000_update_chorus_mode);
EXPORT_SYMBOL(snd_emu8000_update_reverb_mode);
EXPORT_SYMBOL(snd_emu8000_update_equalizer);
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