27fe864ec9
Modules: EMU10K1/EMU10K2 driver Description: Part way to fix ALSA bug#927 Add support for the SPI interface on the CA0108 chip. This is used to control the registers on the DAC. Headphone output tested. Other outputs and Capture not tested yet. Note: The red LED does not come on, but sound is still OK. Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
441 lines
12 KiB
C
441 lines
12 KiB
C
/*
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* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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* Creative Labs, Inc.
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* Routines for control of EMU10K1 chips
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*
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* BUGS:
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* --
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*
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* TODO:
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* --
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <sound/driver.h>
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#include <linux/time.h>
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#include <sound/core.h>
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#include <sound/emu10k1.h>
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#include <linux/delay.h>
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unsigned int snd_emu10k1_ptr_read(struct snd_emu10k1 * emu, unsigned int reg, unsigned int chn)
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{
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unsigned long flags;
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unsigned int regptr, val;
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unsigned int mask;
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mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK;
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regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK);
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if (reg & 0xff000000) {
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unsigned char size, offset;
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size = (reg >> 24) & 0x3f;
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offset = (reg >> 16) & 0x1f;
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mask = ((1 << size) - 1) << offset;
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spin_lock_irqsave(&emu->emu_lock, flags);
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outl(regptr, emu->port + PTR);
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val = inl(emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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return (val & mask) >> offset;
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} else {
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spin_lock_irqsave(&emu->emu_lock, flags);
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outl(regptr, emu->port + PTR);
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val = inl(emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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return val;
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}
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}
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void snd_emu10k1_ptr_write(struct snd_emu10k1 *emu, unsigned int reg, unsigned int chn, unsigned int data)
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{
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unsigned int regptr;
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unsigned long flags;
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unsigned int mask;
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mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK;
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regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK);
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if (reg & 0xff000000) {
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unsigned char size, offset;
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size = (reg >> 24) & 0x3f;
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offset = (reg >> 16) & 0x1f;
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mask = ((1 << size) - 1) << offset;
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data = (data << offset) & mask;
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spin_lock_irqsave(&emu->emu_lock, flags);
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outl(regptr, emu->port + PTR);
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data |= inl(emu->port + DATA) & ~mask;
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outl(data, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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} else {
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spin_lock_irqsave(&emu->emu_lock, flags);
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outl(regptr, emu->port + PTR);
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outl(data, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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}
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unsigned int snd_emu10k1_ptr20_read(struct snd_emu10k1 * emu,
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unsigned int reg,
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unsigned int chn)
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{
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unsigned long flags;
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unsigned int regptr, val;
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regptr = (reg << 16) | chn;
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spin_lock_irqsave(&emu->emu_lock, flags);
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outl(regptr, emu->port + 0x20 + PTR);
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val = inl(emu->port + 0x20 + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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return val;
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}
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void snd_emu10k1_ptr20_write(struct snd_emu10k1 *emu,
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unsigned int reg,
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unsigned int chn,
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unsigned int data)
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{
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unsigned int regptr;
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unsigned long flags;
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regptr = (reg << 16) | chn;
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spin_lock_irqsave(&emu->emu_lock, flags);
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outl(regptr, emu->port + 0x20 + PTR);
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outl(data, emu->port + 0x20 + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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int snd_emu10k1_spi_write(struct snd_emu10k1 * emu,
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unsigned int data)
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{
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unsigned int reset, set;
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unsigned int reg, tmp;
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int n, result;
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if (emu->card_capabilities->ca0108_chip) {
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reg=0x3c; /* PTR20, reg 0x3c */
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} else {
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return 1; /* For other cards types the SPI register is currently unknown. */
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}
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if (data > 0xffff) return 1; /* Only 16bit values allowed */
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tmp = snd_emu10k1_ptr20_read(emu, reg, 0);
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reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
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set = reset | 0x10000; /* Set xxx1xxxx */
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snd_emu10k1_ptr20_write(emu, reg, 0, reset | data);
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tmp = snd_emu10k1_ptr20_read(emu, reg, 0); /* write post */
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snd_emu10k1_ptr20_write(emu, reg, 0, set | data);
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result = 1;
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/* Wait for status bit to return to 0 */
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for (n=0;n<100;n++) {
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udelay(10);
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tmp = snd_emu10k1_ptr20_read(emu, reg, 0);
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if (!(tmp & 0x10000)) {
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result=0;
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break;
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}
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}
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if (result) return 1; /* Timed out */
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snd_emu10k1_ptr20_write(emu, reg, 0, reset | data);
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tmp = snd_emu10k1_ptr20_read(emu, reg, 0); /* Write post */
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return 0;
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}
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void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
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{
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unsigned long flags;
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unsigned int enable;
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spin_lock_irqsave(&emu->emu_lock, flags);
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enable = inl(emu->port + INTE) | intrenb;
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outl(enable, emu->port + INTE);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
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{
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unsigned long flags;
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unsigned int enable;
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spin_lock_irqsave(&emu->emu_lock, flags);
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enable = inl(emu->port + INTE) & ~intrenb;
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outl(enable, emu->port + INTE);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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unsigned int val;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(CLIEH << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val |= 1 << (voicenum - 32);
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} else {
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outl(CLIEL << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val |= 1 << voicenum;
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}
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outl(val, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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unsigned int val;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(CLIEH << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val &= ~(1 << (voicenum - 32));
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} else {
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outl(CLIEL << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val &= ~(1 << voicenum);
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}
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outl(val, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(CLIPH << 16, emu->port + PTR);
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voicenum = 1 << (voicenum - 32);
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} else {
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outl(CLIPL << 16, emu->port + PTR);
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voicenum = 1 << voicenum;
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}
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outl(voicenum, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_half_loop_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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unsigned int val;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(HLIEH << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val |= 1 << (voicenum - 32);
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} else {
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outl(HLIEL << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val |= 1 << voicenum;
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}
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outl(val, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_half_loop_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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unsigned int val;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(HLIEH << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val &= ~(1 << (voicenum - 32));
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} else {
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outl(HLIEL << 16, emu->port + PTR);
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val = inl(emu->port + DATA);
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val &= ~(1 << voicenum);
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}
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outl(val, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_half_loop_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(HLIPH << 16, emu->port + PTR);
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voicenum = 1 << (voicenum - 32);
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} else {
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outl(HLIPL << 16, emu->port + PTR);
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voicenum = 1 << voicenum;
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}
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outl(voicenum, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_set_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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unsigned int sol;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(SOLEH << 16, emu->port + PTR);
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sol = inl(emu->port + DATA);
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sol |= 1 << (voicenum - 32);
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} else {
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outl(SOLEL << 16, emu->port + PTR);
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sol = inl(emu->port + DATA);
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sol |= 1 << voicenum;
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}
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outl(sol, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_voice_clear_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum)
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{
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unsigned long flags;
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unsigned int sol;
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spin_lock_irqsave(&emu->emu_lock, flags);
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/* voice interrupt */
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if (voicenum >= 32) {
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outl(SOLEH << 16, emu->port + PTR);
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sol = inl(emu->port + DATA);
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sol &= ~(1 << (voicenum - 32));
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} else {
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outl(SOLEL << 16, emu->port + PTR);
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sol = inl(emu->port + DATA);
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sol &= ~(1 << voicenum);
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}
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outl(sol, emu->port + DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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void snd_emu10k1_wait(struct snd_emu10k1 *emu, unsigned int wait)
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{
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volatile unsigned count;
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unsigned int newtime = 0, curtime;
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curtime = inl(emu->port + WC) >> 6;
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while (wait-- > 0) {
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count = 0;
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while (count++ < 16384) {
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newtime = inl(emu->port + WC) >> 6;
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if (newtime != curtime)
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break;
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}
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if (count >= 16384)
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break;
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curtime = newtime;
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}
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}
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unsigned short snd_emu10k1_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
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{
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struct snd_emu10k1 *emu = ac97->private_data;
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unsigned long flags;
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unsigned short val;
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spin_lock_irqsave(&emu->emu_lock, flags);
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outb(reg, emu->port + AC97ADDRESS);
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val = inw(emu->port + AC97DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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return val;
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}
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void snd_emu10k1_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short data)
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{
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struct snd_emu10k1 *emu = ac97->private_data;
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unsigned long flags;
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spin_lock_irqsave(&emu->emu_lock, flags);
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outb(reg, emu->port + AC97ADDRESS);
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outw(data, emu->port + AC97DATA);
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spin_unlock_irqrestore(&emu->emu_lock, flags);
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}
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/*
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* convert rate to pitch
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*/
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unsigned int snd_emu10k1_rate_to_pitch(unsigned int rate)
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{
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static u32 logMagTable[128] = {
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0x00000, 0x02dfc, 0x05b9e, 0x088e6, 0x0b5d6, 0x0e26f, 0x10eb3, 0x13aa2,
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0x1663f, 0x1918a, 0x1bc84, 0x1e72e, 0x2118b, 0x23b9a, 0x2655d, 0x28ed5,
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0x2b803, 0x2e0e8, 0x30985, 0x331db, 0x359eb, 0x381b6, 0x3a93d, 0x3d081,
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0x3f782, 0x41e42, 0x444c1, 0x46b01, 0x49101, 0x4b6c4, 0x4dc49, 0x50191,
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0x5269e, 0x54b6f, 0x57006, 0x59463, 0x5b888, 0x5dc74, 0x60029, 0x623a7,
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0x646ee, 0x66a00, 0x68cdd, 0x6af86, 0x6d1fa, 0x6f43c, 0x7164b, 0x73829,
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0x759d4, 0x77b4f, 0x79c9a, 0x7bdb5, 0x7dea1, 0x7ff5e, 0x81fed, 0x8404e,
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0x86082, 0x88089, 0x8a064, 0x8c014, 0x8df98, 0x8fef1, 0x91e20, 0x93d26,
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0x95c01, 0x97ab4, 0x9993e, 0x9b79f, 0x9d5d9, 0x9f3ec, 0xa11d8, 0xa2f9d,
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0xa4d3c, 0xa6ab5, 0xa8808, 0xaa537, 0xac241, 0xadf26, 0xafbe7, 0xb1885,
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0xb3500, 0xb5157, 0xb6d8c, 0xb899f, 0xba58f, 0xbc15e, 0xbdd0c, 0xbf899,
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0xc1404, 0xc2f50, 0xc4a7b, 0xc6587, 0xc8073, 0xc9b3f, 0xcb5ed, 0xcd07c,
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0xceaec, 0xd053f, 0xd1f73, 0xd398a, 0xd5384, 0xd6d60, 0xd8720, 0xda0c3,
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0xdba4a, 0xdd3b4, 0xded03, 0xe0636, 0xe1f4e, 0xe384a, 0xe512c, 0xe69f3,
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0xe829f, 0xe9b31, 0xeb3a9, 0xecc08, 0xee44c, 0xefc78, 0xf148a, 0xf2c83,
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0xf4463, 0xf5c2a, 0xf73da, 0xf8b71, 0xfa2f0, 0xfba57, 0xfd1a7, 0xfe8df
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};
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static char logSlopeTable[128] = {
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0x5c, 0x5c, 0x5b, 0x5a, 0x5a, 0x59, 0x58, 0x58,
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0x57, 0x56, 0x56, 0x55, 0x55, 0x54, 0x53, 0x53,
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0x52, 0x52, 0x51, 0x51, 0x50, 0x50, 0x4f, 0x4f,
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0x4e, 0x4d, 0x4d, 0x4d, 0x4c, 0x4c, 0x4b, 0x4b,
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0x4a, 0x4a, 0x49, 0x49, 0x48, 0x48, 0x47, 0x47,
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0x47, 0x46, 0x46, 0x45, 0x45, 0x45, 0x44, 0x44,
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0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x41, 0x41,
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0x41, 0x40, 0x40, 0x40, 0x3f, 0x3f, 0x3f, 0x3e,
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0x3e, 0x3e, 0x3d, 0x3d, 0x3d, 0x3c, 0x3c, 0x3c,
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0x3b, 0x3b, 0x3b, 0x3b, 0x3a, 0x3a, 0x3a, 0x39,
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0x39, 0x39, 0x39, 0x38, 0x38, 0x38, 0x38, 0x37,
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0x37, 0x37, 0x37, 0x36, 0x36, 0x36, 0x36, 0x35,
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0x35, 0x35, 0x35, 0x34, 0x34, 0x34, 0x34, 0x34,
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0x33, 0x33, 0x33, 0x33, 0x32, 0x32, 0x32, 0x32,
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0x32, 0x31, 0x31, 0x31, 0x31, 0x31, 0x30, 0x30,
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0x30, 0x30, 0x30, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f
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};
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int i;
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if (rate == 0)
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return 0; /* Bail out if no leading "1" */
|
|
rate *= 11185; /* Scale 48000 to 0x20002380 */
|
|
for (i = 31; i > 0; i--) {
|
|
if (rate & 0x80000000) { /* Detect leading "1" */
|
|
return (((unsigned int) (i - 15) << 20) +
|
|
logMagTable[0x7f & (rate >> 24)] +
|
|
(0x7f & (rate >> 17)) *
|
|
logSlopeTable[0x7f & (rate >> 24)]);
|
|
}
|
|
rate <<= 1;
|
|
}
|
|
|
|
return 0; /* Should never reach this point */
|
|
}
|
|
|