1281 lines
37 KiB
C
1281 lines
37 KiB
C
/*
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* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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* Routines for control of AD1848/AD1847/CS4248
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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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#define SNDRV_MAIN_OBJECT_FILE
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#include <sound/driver.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/pm.h>
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#include <linux/slab.h>
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#include <linux/ioport.h>
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#include <sound/core.h>
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#include <sound/ad1848.h>
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#include <sound/control.h>
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#include <sound/pcm_params.h>
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#include <asm/io.h>
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#include <asm/dma.h>
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MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
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MODULE_DESCRIPTION("Routines for control of AD1848/AD1847/CS4248");
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MODULE_LICENSE("GPL");
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#if 0
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#define SNDRV_DEBUG_MCE
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#endif
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/*
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* Some variables
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*/
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static unsigned char freq_bits[14] = {
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/* 5510 */ 0x00 | AD1848_XTAL2,
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/* 6620 */ 0x0E | AD1848_XTAL2,
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/* 8000 */ 0x00 | AD1848_XTAL1,
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/* 9600 */ 0x0E | AD1848_XTAL1,
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/* 11025 */ 0x02 | AD1848_XTAL2,
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/* 16000 */ 0x02 | AD1848_XTAL1,
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/* 18900 */ 0x04 | AD1848_XTAL2,
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/* 22050 */ 0x06 | AD1848_XTAL2,
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/* 27042 */ 0x04 | AD1848_XTAL1,
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/* 32000 */ 0x06 | AD1848_XTAL1,
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/* 33075 */ 0x0C | AD1848_XTAL2,
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/* 37800 */ 0x08 | AD1848_XTAL2,
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/* 44100 */ 0x0A | AD1848_XTAL2,
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/* 48000 */ 0x0C | AD1848_XTAL1
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};
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static unsigned int rates[14] = {
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5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
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27042, 32000, 33075, 37800, 44100, 48000
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};
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static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
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.count = 14,
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.list = rates,
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.mask = 0,
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};
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static unsigned char snd_ad1848_original_image[16] =
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{
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0x00, /* 00 - lic */
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0x00, /* 01 - ric */
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0x9f, /* 02 - la1ic */
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0x9f, /* 03 - ra1ic */
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0x9f, /* 04 - la2ic */
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0x9f, /* 05 - ra2ic */
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0xbf, /* 06 - loc */
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0xbf, /* 07 - roc */
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0x20, /* 08 - dfr */
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AD1848_AUTOCALIB, /* 09 - ic */
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0x00, /* 0a - pc */
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0x00, /* 0b - ti */
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0x00, /* 0c - mi */
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0x00, /* 0d - lbc */
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0x00, /* 0e - dru */
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0x00, /* 0f - drl */
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};
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/*
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* Basic I/O functions
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*/
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void snd_ad1848_out(ad1848_t *chip,
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unsigned char reg,
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unsigned char value)
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{
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int timeout;
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for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
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udelay(100);
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#ifdef CONFIG_SND_DEBUG
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if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
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snd_printk("auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
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#endif
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outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
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outb(chip->image[reg] = value, AD1848P(chip, REG));
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mb();
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#if 0
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printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value);
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#endif
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}
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static void snd_ad1848_dout(ad1848_t *chip,
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unsigned char reg, unsigned char value)
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{
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int timeout;
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for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
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udelay(100);
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outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
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outb(value, AD1848P(chip, REG));
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mb();
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}
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static unsigned char snd_ad1848_in(ad1848_t *chip, unsigned char reg)
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{
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int timeout;
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for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
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udelay(100);
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#ifdef CONFIG_SND_DEBUG
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if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
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snd_printk("auto calibration time out - reg = 0x%x\n", reg);
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#endif
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outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
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mb();
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return inb(AD1848P(chip, REG));
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}
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#if 0
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static void snd_ad1848_debug(ad1848_t *chip)
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{
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printk("AD1848 REGS: INDEX = 0x%02x ", inb(AD1848P(chip, REGSEL)));
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printk(" STATUS = 0x%02x\n", inb(AD1848P(chip, STATUS)));
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printk(" 0x00: left input = 0x%02x ", snd_ad1848_in(chip, 0x00));
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printk(" 0x08: playback format = 0x%02x\n", snd_ad1848_in(chip, 0x08));
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printk(" 0x01: right input = 0x%02x ", snd_ad1848_in(chip, 0x01));
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printk(" 0x09: iface (CFIG 1) = 0x%02x\n", snd_ad1848_in(chip, 0x09));
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printk(" 0x02: AUXA left = 0x%02x ", snd_ad1848_in(chip, 0x02));
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printk(" 0x0a: pin control = 0x%02x\n", snd_ad1848_in(chip, 0x0a));
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printk(" 0x03: AUXA right = 0x%02x ", snd_ad1848_in(chip, 0x03));
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printk(" 0x0b: init & status = 0x%02x\n", snd_ad1848_in(chip, 0x0b));
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printk(" 0x04: AUXB left = 0x%02x ", snd_ad1848_in(chip, 0x04));
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printk(" 0x0c: revision & mode = 0x%02x\n", snd_ad1848_in(chip, 0x0c));
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printk(" 0x05: AUXB right = 0x%02x ", snd_ad1848_in(chip, 0x05));
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printk(" 0x0d: loopback = 0x%02x\n", snd_ad1848_in(chip, 0x0d));
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printk(" 0x06: left output = 0x%02x ", snd_ad1848_in(chip, 0x06));
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printk(" 0x0e: data upr count = 0x%02x\n", snd_ad1848_in(chip, 0x0e));
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printk(" 0x07: right output = 0x%02x ", snd_ad1848_in(chip, 0x07));
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printk(" 0x0f: data lwr count = 0x%02x\n", snd_ad1848_in(chip, 0x0f));
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}
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#endif
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/*
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* AD1848 detection / MCE routines
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*/
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static void snd_ad1848_mce_up(ad1848_t *chip)
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{
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unsigned long flags;
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int timeout;
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for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
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udelay(100);
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#ifdef CONFIG_SND_DEBUG
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if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
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snd_printk("mce_up - auto calibration time out (0)\n");
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#endif
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spin_lock_irqsave(&chip->reg_lock, flags);
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chip->mce_bit |= AD1848_MCE;
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timeout = inb(AD1848P(chip, REGSEL));
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if (timeout == 0x80)
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snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
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if (!(timeout & AD1848_MCE))
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outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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static void snd_ad1848_mce_down(ad1848_t *chip)
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{
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unsigned long flags;
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int timeout;
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signed long time;
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spin_lock_irqsave(&chip->reg_lock, flags);
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for (timeout = 5; timeout > 0; timeout--)
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inb(AD1848P(chip, REGSEL));
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/* end of cleanup sequence */
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for (timeout = 12000; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
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udelay(100);
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#if 0
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printk("(1) timeout = %i\n", timeout);
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#endif
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#ifdef CONFIG_SND_DEBUG
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if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
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snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", AD1848P(chip, REGSEL));
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#endif
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chip->mce_bit &= ~AD1848_MCE;
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timeout = inb(AD1848P(chip, REGSEL));
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outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
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if (timeout == 0x80)
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snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
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if ((timeout & AD1848_MCE) == 0) {
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return;
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}
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/* calibration process */
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for (timeout = 500; timeout > 0 && (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0; timeout--);
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if ((snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0) {
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snd_printd("mce_down - auto calibration time out (1)\n");
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return;
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}
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#if 0
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printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies);
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#endif
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time = HZ / 4;
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while (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) {
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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if (time <= 0) {
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snd_printk("mce_down - auto calibration time out (2)\n");
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return;
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}
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set_current_state(TASK_INTERRUPTIBLE);
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time = schedule_timeout(time);
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spin_lock_irqsave(&chip->reg_lock, flags);
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}
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#if 0
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printk("(3) jiffies = %li\n", jiffies);
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#endif
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time = HZ / 10;
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while (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) {
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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if (time <= 0) {
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snd_printk("mce_down - auto calibration time out (3)\n");
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return;
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}
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set_current_state(TASK_INTERRUPTIBLE);
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time = schedule_timeout(time);
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spin_lock_irqsave(&chip->reg_lock, flags);
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}
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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#if 0
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printk("(4) jiffies = %li\n", jiffies);
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snd_printk("mce_down - exit = 0x%x\n", inb(AD1848P(chip, REGSEL)));
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#endif
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}
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static unsigned int snd_ad1848_get_count(unsigned char format,
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unsigned int size)
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{
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switch (format & 0xe0) {
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case AD1848_LINEAR_16:
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size >>= 1;
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break;
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}
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if (format & AD1848_STEREO)
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size >>= 1;
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return size;
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}
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static int snd_ad1848_trigger(ad1848_t *chip, unsigned char what,
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int channel, int cmd)
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{
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int result = 0;
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#if 0
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printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, inb(AD1848P(card, STATUS)));
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#endif
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spin_lock(&chip->reg_lock);
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if (cmd == SNDRV_PCM_TRIGGER_START) {
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if (chip->image[AD1848_IFACE_CTRL] & what) {
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spin_unlock(&chip->reg_lock);
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return 0;
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}
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snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] |= what);
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chip->mode |= AD1848_MODE_RUNNING;
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} else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
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if (!(chip->image[AD1848_IFACE_CTRL] & what)) {
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spin_unlock(&chip->reg_lock);
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return 0;
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}
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snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] &= ~what);
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chip->mode &= ~AD1848_MODE_RUNNING;
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} else {
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result = -EINVAL;
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}
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spin_unlock(&chip->reg_lock);
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return result;
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}
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/*
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* CODEC I/O
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*/
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static unsigned char snd_ad1848_get_rate(unsigned int rate)
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{
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int i;
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for (i = 0; i < 14; i++)
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if (rate == rates[i])
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return freq_bits[i];
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snd_BUG();
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return freq_bits[13];
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}
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static int snd_ad1848_ioctl(snd_pcm_substream_t * substream,
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unsigned int cmd, void *arg)
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{
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return snd_pcm_lib_ioctl(substream, cmd, arg);
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}
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static unsigned char snd_ad1848_get_format(int format, int channels)
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{
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unsigned char rformat;
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rformat = AD1848_LINEAR_8;
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switch (format) {
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case SNDRV_PCM_FORMAT_A_LAW: rformat = AD1848_ALAW_8; break;
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case SNDRV_PCM_FORMAT_MU_LAW: rformat = AD1848_ULAW_8; break;
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case SNDRV_PCM_FORMAT_S16_LE: rformat = AD1848_LINEAR_16; break;
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}
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if (channels > 1)
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rformat |= AD1848_STEREO;
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#if 0
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snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
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#endif
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return rformat;
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}
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static void snd_ad1848_calibrate_mute(ad1848_t *chip, int mute)
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{
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unsigned long flags;
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mute = mute ? 1 : 0;
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spin_lock_irqsave(&chip->reg_lock, flags);
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if (chip->calibrate_mute == mute) {
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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return;
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}
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if (!mute) {
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snd_ad1848_dout(chip, AD1848_LEFT_INPUT, chip->image[AD1848_LEFT_INPUT]);
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snd_ad1848_dout(chip, AD1848_RIGHT_INPUT, chip->image[AD1848_RIGHT_INPUT]);
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}
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snd_ad1848_dout(chip, AD1848_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_LEFT_INPUT]);
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snd_ad1848_dout(chip, AD1848_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_RIGHT_INPUT]);
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snd_ad1848_dout(chip, AD1848_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_LEFT_INPUT]);
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snd_ad1848_dout(chip, AD1848_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_RIGHT_INPUT]);
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snd_ad1848_dout(chip, AD1848_LEFT_OUTPUT, mute ? 0x80 : chip->image[AD1848_LEFT_OUTPUT]);
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snd_ad1848_dout(chip, AD1848_RIGHT_OUTPUT, mute ? 0x80 : chip->image[AD1848_RIGHT_OUTPUT]);
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chip->calibrate_mute = mute;
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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static void snd_ad1848_set_data_format(ad1848_t *chip, snd_pcm_hw_params_t *hw_params)
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{
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if (hw_params == NULL) {
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chip->image[AD1848_DATA_FORMAT] = 0x20;
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} else {
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chip->image[AD1848_DATA_FORMAT] =
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snd_ad1848_get_format(params_format(hw_params), params_channels(hw_params)) |
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snd_ad1848_get_rate(params_rate(hw_params));
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}
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// snd_printk(">>> pmode = 0x%x, dfr = 0x%x\n", pstr->mode, chip->image[AD1848_DATA_FORMAT]);
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}
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static int snd_ad1848_open(ad1848_t *chip, unsigned int mode)
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{
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unsigned long flags;
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down(&chip->open_mutex);
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if (chip->mode & AD1848_MODE_OPEN) {
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up(&chip->open_mutex);
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return -EAGAIN;
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}
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snd_ad1848_mce_down(chip);
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#ifdef SNDRV_DEBUG_MCE
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snd_printk("open: (1)\n");
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#endif
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snd_ad1848_mce_up(chip);
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spin_lock_irqsave(&chip->reg_lock, flags);
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chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
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AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO |
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AD1848_CALIB_MODE);
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chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB;
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snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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snd_ad1848_mce_down(chip);
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#ifdef SNDRV_DEBUG_MCE
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snd_printk("open: (2)\n");
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#endif
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snd_ad1848_set_data_format(chip, NULL);
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snd_ad1848_mce_up(chip);
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spin_lock_irqsave(&chip->reg_lock, flags);
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snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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snd_ad1848_mce_down(chip);
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#ifdef SNDRV_DEBUG_MCE
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snd_printk("open: (3)\n");
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#endif
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/* ok. now enable and ack CODEC IRQ */
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spin_lock_irqsave(&chip->reg_lock, flags);
|
|
outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
|
|
outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
|
|
chip->image[AD1848_PIN_CTRL] |= AD1848_IRQ_ENABLE;
|
|
snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
|
|
chip->mode = mode;
|
|
up(&chip->open_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void snd_ad1848_close(ad1848_t *chip)
|
|
{
|
|
unsigned long flags;
|
|
|
|
down(&chip->open_mutex);
|
|
if (!chip->mode) {
|
|
up(&chip->open_mutex);
|
|
return;
|
|
}
|
|
/* disable IRQ */
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
|
|
outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
|
|
chip->image[AD1848_PIN_CTRL] &= ~AD1848_IRQ_ENABLE;
|
|
snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
|
|
/* now disable capture & playback */
|
|
|
|
snd_ad1848_mce_up(chip);
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
|
|
AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
|
|
snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
snd_ad1848_mce_down(chip);
|
|
|
|
/* clear IRQ again */
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
|
|
outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
|
|
chip->mode = 0;
|
|
up(&chip->open_mutex);
|
|
}
|
|
|
|
/*
|
|
* ok.. exported functions..
|
|
*/
|
|
|
|
static int snd_ad1848_playback_trigger(snd_pcm_substream_t * substream,
|
|
int cmd)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
return snd_ad1848_trigger(chip, AD1848_PLAYBACK_ENABLE, SNDRV_PCM_STREAM_PLAYBACK, cmd);
|
|
}
|
|
|
|
static int snd_ad1848_capture_trigger(snd_pcm_substream_t * substream,
|
|
int cmd)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
return snd_ad1848_trigger(chip, AD1848_CAPTURE_ENABLE, SNDRV_PCM_STREAM_CAPTURE, cmd);
|
|
}
|
|
|
|
static int snd_ad1848_playback_hw_params(snd_pcm_substream_t * substream,
|
|
snd_pcm_hw_params_t * hw_params)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
|
|
return err;
|
|
snd_ad1848_calibrate_mute(chip, 1);
|
|
snd_ad1848_set_data_format(chip, hw_params);
|
|
snd_ad1848_mce_up(chip);
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
snd_ad1848_mce_down(chip);
|
|
snd_ad1848_calibrate_mute(chip, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_playback_hw_free(snd_pcm_substream_t * substream)
|
|
{
|
|
return snd_pcm_lib_free_pages(substream);
|
|
}
|
|
|
|
static int snd_ad1848_playback_prepare(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
snd_pcm_runtime_t *runtime = substream->runtime;
|
|
unsigned long flags;
|
|
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
|
|
unsigned int count = snd_pcm_lib_period_bytes(substream);
|
|
|
|
chip->dma_size = size;
|
|
chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO);
|
|
snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
|
|
count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
|
|
snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_capture_hw_params(snd_pcm_substream_t * substream,
|
|
snd_pcm_hw_params_t * hw_params)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
|
|
return err;
|
|
snd_ad1848_calibrate_mute(chip, 1);
|
|
snd_ad1848_set_data_format(chip, hw_params);
|
|
snd_ad1848_mce_up(chip);
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
snd_ad1848_mce_down(chip);
|
|
snd_ad1848_calibrate_mute(chip, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_capture_hw_free(snd_pcm_substream_t * substream)
|
|
{
|
|
return snd_pcm_lib_free_pages(substream);
|
|
}
|
|
|
|
static int snd_ad1848_capture_prepare(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
snd_pcm_runtime_t *runtime = substream->runtime;
|
|
unsigned long flags;
|
|
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
|
|
unsigned int count = snd_pcm_lib_period_bytes(substream);
|
|
|
|
chip->dma_size = size;
|
|
chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
|
|
snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
|
|
count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
|
|
snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id, struct pt_regs *regs)
|
|
{
|
|
ad1848_t *chip = dev_id;
|
|
|
|
if ((chip->mode & AD1848_MODE_PLAY) && chip->playback_substream &&
|
|
(chip->mode & AD1848_MODE_RUNNING))
|
|
snd_pcm_period_elapsed(chip->playback_substream);
|
|
if ((chip->mode & AD1848_MODE_CAPTURE) && chip->capture_substream &&
|
|
(chip->mode & AD1848_MODE_RUNNING))
|
|
snd_pcm_period_elapsed(chip->capture_substream);
|
|
outb(0, AD1848P(chip, STATUS)); /* clear global interrupt bit */
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static snd_pcm_uframes_t snd_ad1848_playback_pointer(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
size_t ptr;
|
|
|
|
if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_PLAYBACK_ENABLE))
|
|
return 0;
|
|
ptr = snd_dma_pointer(chip->dma, chip->dma_size);
|
|
return bytes_to_frames(substream->runtime, ptr);
|
|
}
|
|
|
|
static snd_pcm_uframes_t snd_ad1848_capture_pointer(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
size_t ptr;
|
|
|
|
if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_CAPTURE_ENABLE))
|
|
return 0;
|
|
ptr = snd_dma_pointer(chip->dma, chip->dma_size);
|
|
return bytes_to_frames(substream->runtime, ptr);
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static void snd_ad1848_thinkpad_twiddle(ad1848_t *chip, int on) {
|
|
|
|
int tmp;
|
|
|
|
if (!chip->thinkpad_flag) return;
|
|
|
|
outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
|
|
tmp = inb(AD1848_THINKPAD_CTL_PORT2);
|
|
|
|
if (on)
|
|
/* turn it on */
|
|
tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
|
|
else
|
|
/* turn it off */
|
|
tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
|
|
|
|
outb(tmp, AD1848_THINKPAD_CTL_PORT2);
|
|
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int snd_ad1848_suspend(snd_card_t *card, pm_message_t state)
|
|
{
|
|
ad1848_t *chip = card->pm_private_data;
|
|
|
|
snd_pcm_suspend_all(chip->pcm);
|
|
/* FIXME: save registers? */
|
|
|
|
if (chip->thinkpad_flag)
|
|
snd_ad1848_thinkpad_twiddle(chip, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_resume(snd_card_t *card)
|
|
{
|
|
ad1848_t *chip = card->pm_private_data;
|
|
|
|
if (chip->thinkpad_flag)
|
|
snd_ad1848_thinkpad_twiddle(chip, 1);
|
|
|
|
/* FIXME: restore registers? */
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_PM */
|
|
|
|
static int snd_ad1848_probe(ad1848_t * chip)
|
|
{
|
|
unsigned long flags;
|
|
int i, id, rev, ad1847;
|
|
unsigned char *ptr;
|
|
|
|
#if 0
|
|
snd_ad1848_debug(chip);
|
|
#endif
|
|
id = ad1847 = 0;
|
|
for (i = 0; i < 1000; i++) {
|
|
mb();
|
|
if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
|
|
udelay(500);
|
|
else {
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
|
|
snd_ad1848_out(chip, AD1848_LEFT_INPUT, 0xaa);
|
|
snd_ad1848_out(chip, AD1848_RIGHT_INPUT, 0x45);
|
|
rev = snd_ad1848_in(chip, AD1848_RIGHT_INPUT);
|
|
if (rev == 0x65) {
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
id = 1;
|
|
ad1847 = 1;
|
|
break;
|
|
}
|
|
if (snd_ad1848_in(chip, AD1848_LEFT_INPUT) == 0xaa && rev == 0x45) {
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
id = 1;
|
|
break;
|
|
}
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
}
|
|
}
|
|
if (id != 1)
|
|
return -ENODEV; /* no valid device found */
|
|
if (chip->hardware == AD1848_HW_DETECT) {
|
|
if (ad1847) {
|
|
chip->hardware = AD1848_HW_AD1847;
|
|
} else {
|
|
chip->hardware = AD1848_HW_AD1848;
|
|
rev = snd_ad1848_in(chip, AD1848_MISC_INFO);
|
|
if (rev & 0x80) {
|
|
chip->hardware = AD1848_HW_CS4248;
|
|
} else if ((rev & 0x0f) == 0x0a) {
|
|
snd_ad1848_out(chip, AD1848_MISC_INFO, 0x40);
|
|
for (i = 0; i < 16; ++i) {
|
|
if (snd_ad1848_in(chip, i) != snd_ad1848_in(chip, i + 16)) {
|
|
chip->hardware = AD1848_HW_CMI8330;
|
|
break;
|
|
}
|
|
}
|
|
snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
|
|
}
|
|
}
|
|
}
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
inb(AD1848P(chip, STATUS)); /* clear any pendings IRQ */
|
|
outb(0, AD1848P(chip, STATUS));
|
|
mb();
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
|
|
chip->image[AD1848_MISC_INFO] = 0x00;
|
|
chip->image[AD1848_IFACE_CTRL] =
|
|
(chip->image[AD1848_IFACE_CTRL] & ~AD1848_SINGLE_DMA) | AD1848_SINGLE_DMA;
|
|
ptr = (unsigned char *) &chip->image;
|
|
snd_ad1848_mce_down(chip);
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
for (i = 0; i < 16; i++) /* ok.. fill all AD1848 registers */
|
|
snd_ad1848_out(chip, i, *ptr++);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
snd_ad1848_mce_up(chip);
|
|
snd_ad1848_mce_down(chip);
|
|
return 0; /* all things are ok.. */
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static snd_pcm_hardware_t snd_ad1848_playback =
|
|
{
|
|
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID),
|
|
.formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
|
|
SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
|
|
.rates = SNDRV_PCM_RATE_KNOT | 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 snd_pcm_hardware_t snd_ad1848_capture =
|
|
{
|
|
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID),
|
|
.formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
|
|
SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
|
|
.rates = SNDRV_PCM_RATE_KNOT | 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 int snd_ad1848_playback_open(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
snd_pcm_runtime_t *runtime = substream->runtime;
|
|
int err;
|
|
|
|
if ((err = snd_ad1848_open(chip, AD1848_MODE_PLAY)) < 0)
|
|
return err;
|
|
chip->playback_substream = substream;
|
|
runtime->hw = snd_ad1848_playback;
|
|
snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
|
|
snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
|
|
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_capture_open(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
snd_pcm_runtime_t *runtime = substream->runtime;
|
|
int err;
|
|
|
|
if ((err = snd_ad1848_open(chip, AD1848_MODE_CAPTURE)) < 0)
|
|
return err;
|
|
chip->capture_substream = substream;
|
|
runtime->hw = snd_ad1848_capture;
|
|
snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
|
|
snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
|
|
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_playback_close(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
|
|
chip->mode &= ~AD1848_MODE_PLAY;
|
|
chip->playback_substream = NULL;
|
|
snd_ad1848_close(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_capture_close(snd_pcm_substream_t * substream)
|
|
{
|
|
ad1848_t *chip = snd_pcm_substream_chip(substream);
|
|
|
|
chip->mode &= ~AD1848_MODE_CAPTURE;
|
|
chip->capture_substream = NULL;
|
|
snd_ad1848_close(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_free(ad1848_t *chip)
|
|
{
|
|
if (chip->res_port) {
|
|
release_resource(chip->res_port);
|
|
kfree_nocheck(chip->res_port);
|
|
}
|
|
if (chip->irq >= 0)
|
|
free_irq(chip->irq, (void *) chip);
|
|
if (chip->dma >= 0) {
|
|
snd_dma_disable(chip->dma);
|
|
free_dma(chip->dma);
|
|
}
|
|
kfree(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_dev_free(snd_device_t *device)
|
|
{
|
|
ad1848_t *chip = device->device_data;
|
|
return snd_ad1848_free(chip);
|
|
}
|
|
|
|
static const char *snd_ad1848_chip_id(ad1848_t *chip)
|
|
{
|
|
switch (chip->hardware) {
|
|
case AD1848_HW_AD1847: return "AD1847";
|
|
case AD1848_HW_AD1848: return "AD1848";
|
|
case AD1848_HW_CS4248: return "CS4248";
|
|
case AD1848_HW_CMI8330: return "CMI8330/C3D";
|
|
default: return "???";
|
|
}
|
|
}
|
|
|
|
int snd_ad1848_create(snd_card_t * card,
|
|
unsigned long port,
|
|
int irq, int dma,
|
|
unsigned short hardware,
|
|
ad1848_t ** rchip)
|
|
{
|
|
static snd_device_ops_t ops = {
|
|
.dev_free = snd_ad1848_dev_free,
|
|
};
|
|
ad1848_t *chip;
|
|
int err;
|
|
|
|
*rchip = NULL;
|
|
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
|
|
if (chip == NULL)
|
|
return -ENOMEM;
|
|
spin_lock_init(&chip->reg_lock);
|
|
init_MUTEX(&chip->open_mutex);
|
|
chip->card = card;
|
|
chip->port = port;
|
|
chip->irq = -1;
|
|
chip->dma = -1;
|
|
chip->hardware = hardware;
|
|
memcpy(&chip->image, &snd_ad1848_original_image, sizeof(snd_ad1848_original_image));
|
|
|
|
if ((chip->res_port = request_region(port, 4, "AD1848")) == NULL) {
|
|
snd_printk(KERN_ERR "ad1848: can't grab port 0x%lx\n", port);
|
|
snd_ad1848_free(chip);
|
|
return -EBUSY;
|
|
}
|
|
if (request_irq(irq, snd_ad1848_interrupt, SA_INTERRUPT, "AD1848", (void *) chip)) {
|
|
snd_printk(KERN_ERR "ad1848: can't grab IRQ %d\n", irq);
|
|
snd_ad1848_free(chip);
|
|
return -EBUSY;
|
|
}
|
|
chip->irq = irq;
|
|
if (request_dma(dma, "AD1848")) {
|
|
snd_printk(KERN_ERR "ad1848: can't grab DMA %d\n", dma);
|
|
snd_ad1848_free(chip);
|
|
return -EBUSY;
|
|
}
|
|
chip->dma = dma;
|
|
|
|
if (hardware == AD1848_HW_THINKPAD) {
|
|
chip->thinkpad_flag = 1;
|
|
chip->hardware = AD1848_HW_DETECT; /* reset */
|
|
snd_ad1848_thinkpad_twiddle(chip, 1);
|
|
snd_card_set_isa_pm_callback(card, snd_ad1848_suspend, snd_ad1848_resume, chip);
|
|
}
|
|
|
|
if (snd_ad1848_probe(chip) < 0) {
|
|
snd_ad1848_free(chip);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Register device */
|
|
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
|
|
snd_ad1848_free(chip);
|
|
return err;
|
|
}
|
|
|
|
*rchip = chip;
|
|
return 0;
|
|
}
|
|
|
|
static snd_pcm_ops_t snd_ad1848_playback_ops = {
|
|
.open = snd_ad1848_playback_open,
|
|
.close = snd_ad1848_playback_close,
|
|
.ioctl = snd_ad1848_ioctl,
|
|
.hw_params = snd_ad1848_playback_hw_params,
|
|
.hw_free = snd_ad1848_playback_hw_free,
|
|
.prepare = snd_ad1848_playback_prepare,
|
|
.trigger = snd_ad1848_playback_trigger,
|
|
.pointer = snd_ad1848_playback_pointer,
|
|
};
|
|
|
|
static snd_pcm_ops_t snd_ad1848_capture_ops = {
|
|
.open = snd_ad1848_capture_open,
|
|
.close = snd_ad1848_capture_close,
|
|
.ioctl = snd_ad1848_ioctl,
|
|
.hw_params = snd_ad1848_capture_hw_params,
|
|
.hw_free = snd_ad1848_capture_hw_free,
|
|
.prepare = snd_ad1848_capture_prepare,
|
|
.trigger = snd_ad1848_capture_trigger,
|
|
.pointer = snd_ad1848_capture_pointer,
|
|
};
|
|
|
|
static void snd_ad1848_pcm_free(snd_pcm_t *pcm)
|
|
{
|
|
ad1848_t *chip = pcm->private_data;
|
|
chip->pcm = NULL;
|
|
snd_pcm_lib_preallocate_free_for_all(pcm);
|
|
}
|
|
|
|
int snd_ad1848_pcm(ad1848_t *chip, int device, snd_pcm_t **rpcm)
|
|
{
|
|
snd_pcm_t *pcm;
|
|
int err;
|
|
|
|
if ((err = snd_pcm_new(chip->card, "AD1848", device, 1, 1, &pcm)) < 0)
|
|
return err;
|
|
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1848_playback_ops);
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1848_capture_ops);
|
|
|
|
pcm->private_free = snd_ad1848_pcm_free;
|
|
pcm->private_data = chip;
|
|
pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
|
|
strcpy(pcm->name, snd_ad1848_chip_id(chip));
|
|
|
|
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
|
snd_dma_isa_data(),
|
|
64*1024, chip->dma > 3 ? 128*1024 : 64*1024);
|
|
|
|
chip->pcm = pcm;
|
|
if (rpcm)
|
|
*rpcm = pcm;
|
|
return 0;
|
|
}
|
|
|
|
const snd_pcm_ops_t *snd_ad1848_get_pcm_ops(int direction)
|
|
{
|
|
return direction == SNDRV_PCM_STREAM_PLAYBACK ?
|
|
&snd_ad1848_playback_ops : &snd_ad1848_capture_ops;
|
|
}
|
|
|
|
/*
|
|
* MIXER part
|
|
*/
|
|
|
|
static int snd_ad1848_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
|
|
{
|
|
static char *texts[4] = {
|
|
"Line", "Aux", "Mic", "Mix"
|
|
};
|
|
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
|
|
uinfo->count = 2;
|
|
uinfo->value.enumerated.items = 4;
|
|
if (uinfo->value.enumerated.item > 3)
|
|
uinfo->value.enumerated.item = 3;
|
|
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
|
|
{
|
|
ad1848_t *chip = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
ucontrol->value.enumerated.item[0] = (chip->image[AD1848_LEFT_INPUT] & AD1848_MIXS_ALL) >> 6;
|
|
ucontrol->value.enumerated.item[1] = (chip->image[AD1848_RIGHT_INPUT] & AD1848_MIXS_ALL) >> 6;
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
|
|
{
|
|
ad1848_t *chip = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
unsigned short left, right;
|
|
int change;
|
|
|
|
if (ucontrol->value.enumerated.item[0] > 3 ||
|
|
ucontrol->value.enumerated.item[1] > 3)
|
|
return -EINVAL;
|
|
left = ucontrol->value.enumerated.item[0] << 6;
|
|
right = ucontrol->value.enumerated.item[1] << 6;
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
left = (chip->image[AD1848_LEFT_INPUT] & ~AD1848_MIXS_ALL) | left;
|
|
right = (chip->image[AD1848_RIGHT_INPUT] & ~AD1848_MIXS_ALL) | right;
|
|
change = left != chip->image[AD1848_LEFT_INPUT] ||
|
|
right != chip->image[AD1848_RIGHT_INPUT];
|
|
snd_ad1848_out(chip, AD1848_LEFT_INPUT, left);
|
|
snd_ad1848_out(chip, AD1848_RIGHT_INPUT, right);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
return change;
|
|
}
|
|
|
|
static int snd_ad1848_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
|
|
{
|
|
int mask = (kcontrol->private_value >> 16) & 0xff;
|
|
|
|
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 1;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = mask;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
|
|
{
|
|
ad1848_t *chip = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
int reg = kcontrol->private_value & 0xff;
|
|
int shift = (kcontrol->private_value >> 8) & 0xff;
|
|
int mask = (kcontrol->private_value >> 16) & 0xff;
|
|
int invert = (kcontrol->private_value >> 24) & 0xff;
|
|
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
if (invert)
|
|
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
|
|
{
|
|
ad1848_t *chip = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
int reg = kcontrol->private_value & 0xff;
|
|
int shift = (kcontrol->private_value >> 8) & 0xff;
|
|
int mask = (kcontrol->private_value >> 16) & 0xff;
|
|
int invert = (kcontrol->private_value >> 24) & 0xff;
|
|
int change;
|
|
unsigned short val;
|
|
|
|
val = (ucontrol->value.integer.value[0] & mask);
|
|
if (invert)
|
|
val = mask - val;
|
|
val <<= shift;
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
val = (chip->image[reg] & ~(mask << shift)) | val;
|
|
change = val != chip->image[reg];
|
|
snd_ad1848_out(chip, reg, val);
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
return change;
|
|
}
|
|
|
|
static int snd_ad1848_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
|
|
{
|
|
int mask = (kcontrol->private_value >> 24) & 0xff;
|
|
|
|
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 2;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = mask;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
|
|
{
|
|
ad1848_t *chip = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
int left_reg = kcontrol->private_value & 0xff;
|
|
int right_reg = (kcontrol->private_value >> 8) & 0xff;
|
|
int shift_left = (kcontrol->private_value >> 16) & 0x07;
|
|
int shift_right = (kcontrol->private_value >> 19) & 0x07;
|
|
int mask = (kcontrol->private_value >> 24) & 0xff;
|
|
int invert = (kcontrol->private_value >> 22) & 1;
|
|
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
|
|
ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
if (invert) {
|
|
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
|
|
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ad1848_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
|
|
{
|
|
ad1848_t *chip = snd_kcontrol_chip(kcontrol);
|
|
unsigned long flags;
|
|
int left_reg = kcontrol->private_value & 0xff;
|
|
int right_reg = (kcontrol->private_value >> 8) & 0xff;
|
|
int shift_left = (kcontrol->private_value >> 16) & 0x07;
|
|
int shift_right = (kcontrol->private_value >> 19) & 0x07;
|
|
int mask = (kcontrol->private_value >> 24) & 0xff;
|
|
int invert = (kcontrol->private_value >> 22) & 1;
|
|
int change;
|
|
unsigned short val1, val2;
|
|
|
|
val1 = ucontrol->value.integer.value[0] & mask;
|
|
val2 = ucontrol->value.integer.value[1] & mask;
|
|
if (invert) {
|
|
val1 = mask - val1;
|
|
val2 = mask - val2;
|
|
}
|
|
val1 <<= shift_left;
|
|
val2 <<= shift_right;
|
|
spin_lock_irqsave(&chip->reg_lock, flags);
|
|
if (left_reg != right_reg) {
|
|
val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
|
|
val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
|
|
change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
|
|
snd_ad1848_out(chip, left_reg, val1);
|
|
snd_ad1848_out(chip, right_reg, val2);
|
|
} else {
|
|
val1 = (chip->image[left_reg] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
|
|
change = val1 != chip->image[left_reg];
|
|
snd_ad1848_out(chip, left_reg, val1);
|
|
}
|
|
spin_unlock_irqrestore(&chip->reg_lock, flags);
|
|
return change;
|
|
}
|
|
|
|
/*
|
|
*/
|
|
int snd_ad1848_add_ctl(ad1848_t *chip, const char *name, int index, int type, unsigned long value)
|
|
{
|
|
static snd_kcontrol_new_t newctls[] = {
|
|
[AD1848_MIX_SINGLE] = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.info = snd_ad1848_info_single,
|
|
.get = snd_ad1848_get_single,
|
|
.put = snd_ad1848_put_single,
|
|
},
|
|
[AD1848_MIX_DOUBLE] = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.info = snd_ad1848_info_double,
|
|
.get = snd_ad1848_get_double,
|
|
.put = snd_ad1848_put_double,
|
|
},
|
|
[AD1848_MIX_CAPTURE] = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.info = snd_ad1848_info_mux,
|
|
.get = snd_ad1848_get_mux,
|
|
.put = snd_ad1848_put_mux,
|
|
},
|
|
};
|
|
snd_kcontrol_t *ctl;
|
|
int err;
|
|
|
|
ctl = snd_ctl_new1(&newctls[type], chip);
|
|
if (! ctl)
|
|
return -ENOMEM;
|
|
strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
|
|
ctl->id.index = index;
|
|
ctl->private_value = value;
|
|
if ((err = snd_ctl_add(chip->card, ctl)) < 0) {
|
|
snd_ctl_free_one(ctl);
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static struct ad1848_mix_elem snd_ad1848_controls[] = {
|
|
AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),
|
|
AD1848_DOUBLE("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1),
|
|
AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
|
|
AD1848_DOUBLE("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
|
|
AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
|
|
AD1848_DOUBLE("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
|
|
AD1848_DOUBLE("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0),
|
|
{
|
|
.name = "Capture Source",
|
|
.type = AD1848_MIX_CAPTURE,
|
|
},
|
|
AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0),
|
|
AD1848_SINGLE("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0)
|
|
};
|
|
|
|
int snd_ad1848_mixer(ad1848_t *chip)
|
|
{
|
|
snd_card_t *card;
|
|
snd_pcm_t *pcm;
|
|
unsigned int idx;
|
|
int err;
|
|
|
|
snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
|
|
|
|
pcm = chip->pcm;
|
|
card = chip->card;
|
|
|
|
strcpy(card->mixername, pcm->name);
|
|
|
|
for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++)
|
|
if ((err = snd_ad1848_add_ctl_elem(chip, &snd_ad1848_controls[idx])) < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_ad1848_out);
|
|
EXPORT_SYMBOL(snd_ad1848_create);
|
|
EXPORT_SYMBOL(snd_ad1848_pcm);
|
|
EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
|
|
EXPORT_SYMBOL(snd_ad1848_mixer);
|
|
EXPORT_SYMBOL(snd_ad1848_add_ctl);
|
|
|
|
/*
|
|
* INIT part
|
|
*/
|
|
|
|
static int __init alsa_ad1848_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void __exit alsa_ad1848_exit(void)
|
|
{
|
|
}
|
|
|
|
module_init(alsa_ad1848_init)
|
|
module_exit(alsa_ad1848_exit)
|