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1275 |
phoenix |
/* $Id: dmy.c,v 1.1.1.1 2004-04-15 02:07:20 phoenix Exp $
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* drivers/sbus/audio/dummy.c
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*
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* Copyright 1998 Derrick J Brashear (shadow@andrew.cmu.edu)
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*
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* This is a dummy lowlevel driver. Consider it a distant cousin of
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* /proc/audio; It pretends to be a piece of audio hardware, and writes
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* to a file instead. (or will shortly)
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/errno.h>
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#include <linux/interrupt.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/soundcard.h>
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#include <linux/delay.h>
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#include <asm/openprom.h>
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#include <asm/oplib.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/pgtable.h>
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#include <asm/sbus.h>
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#include <asm/audioio.h>
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#include "dummy.h"
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#define MAX_DRIVERS 1
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static struct sparcaudio_driver drivers[MAX_DRIVERS];
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static int num_drivers;
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static int dummy_play_gain(struct sparcaudio_driver *drv, int value,
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unsigned char balance);
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static int dummy_record_gain(struct sparcaudio_driver *drv, int value,
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unsigned char balance);
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static int dummy_output_muted(struct sparcaudio_driver *drv, int value);
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static int dummy_attach(struct sparcaudio_driver *drv) __init;
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static int
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dummy_set_output_encoding(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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if (value != 0) {
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dummy_chip->perchip_info.play.encoding = value;
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return 0;
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}
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return -EINVAL;
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}
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static int
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dummy_set_input_encoding(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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if (value != 0) {
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dummy_chip->perchip_info.record.encoding = value;
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return 0;
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}
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return -EINVAL;
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}
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static int dummy_get_output_encoding(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.play.encoding;
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}
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static int dummy_get_input_encoding(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.record.encoding;
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}
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static int
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dummy_set_output_rate(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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if (value != 0) {
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dummy_chip->perchip_info.play.sample_rate = value;
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return 0;
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}
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return -EINVAL;
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}
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static int
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dummy_set_input_rate(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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if (value != 0) {
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dummy_chip->perchip_info.record.sample_rate = value;
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return 0;
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}
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return -EINVAL;
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}
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static int dummy_get_output_rate(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.play.sample_rate;
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}
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static int dummy_get_input_rate(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.record.sample_rate;
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}
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/* Generically we support 4 channels. This does 2 */
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static int
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dummy_set_output_channels(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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switch (value) {
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case 1:
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case 2:
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break;
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default:
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return -(EINVAL);
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};
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dummy_chip->perchip_info.play.channels = value;
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return 0;
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}
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/* Generically we support 4 channels. This does 2 */
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static int
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dummy_set_input_channels(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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switch (value) {
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case 1:
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case 2:
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break;
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default:
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return -(EINVAL);
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};
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dummy_chip->perchip_info.record.channels = value;
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return 0;
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}
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static int dummy_get_input_channels(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.record.channels;
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}
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static int dummy_get_output_channels(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.play.channels;
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}
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static int dummy_get_output_precision(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.play.precision;
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}
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static int dummy_get_input_precision(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.record.precision;
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}
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static int dummy_set_output_precision(struct sparcaudio_driver *drv, int val)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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dummy_chip->perchip_info.play.precision = val;
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return dummy_chip->perchip_info.play.precision;
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}
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static int dummy_set_input_precision(struct sparcaudio_driver *drv, int val)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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dummy_chip->perchip_info.record.precision = val;
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return dummy_chip->perchip_info.record.precision;
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}
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/* Set output mute */
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static int dummy_output_muted(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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if (!value)
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dummy_chip->perchip_info.output_muted = 0;
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else
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dummy_chip->perchip_info.output_muted = 1;
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return 0;
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}
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static int dummy_get_output_muted(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.output_muted;
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}
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static int dummy_get_formats(struct sparcaudio_driver *drv)
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{
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return (AFMT_MU_LAW | AFMT_A_LAW |
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AFMT_U8 | AFMT_IMA_ADPCM |
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AFMT_S16_LE | AFMT_S16_BE);
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}
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static int dummy_get_output_ports(struct sparcaudio_driver *drv)
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{
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return (AUDIO_LINE_OUT | AUDIO_SPEAKER | AUDIO_HEADPHONE);
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}
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static int dummy_get_input_ports(struct sparcaudio_driver *drv)
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{
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return (AUDIO_ANALOG_LOOPBACK);
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}
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/* Set chip "output" port */
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static int dummy_set_output_port(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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dummy_chip->perchip_info.play.port = value;
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return value;
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}
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static int dummy_set_input_port(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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dummy_chip->perchip_info.record.port = value;
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return value;
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}
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static int dummy_get_output_port(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.play.port;
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}
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static int dummy_get_input_port(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.record.port;
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}
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static int dummy_get_output_error(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return (int) dummy_chip->perchip_info.play.error;
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}
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static int dummy_get_input_error(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return (int) dummy_chip->perchip_info.record.error;
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}
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static int dummy_get_output_samples(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.play.samples;
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}
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286 |
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static int dummy_get_output_pause(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return (int) dummy_chip->perchip_info.play.pause;
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}
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293 |
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static int dummy_set_output_volume(struct sparcaudio_driver *drv, int value)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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dummy_play_gain(drv, value, dummy_chip->perchip_info.play.balance);
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return 0;
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299 |
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}
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300 |
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301 |
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static int dummy_get_output_volume(struct sparcaudio_driver *drv)
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{
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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return dummy_chip->perchip_info.play.gain;
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}
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307 |
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308 |
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static int dummy_set_output_balance(struct sparcaudio_driver *drv, int value)
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309 |
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{
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310 |
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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311 |
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312 |
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dummy_chip->perchip_info.play.balance = value;
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313 |
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dummy_play_gain(drv, dummy_chip->perchip_info.play.gain,
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dummy_chip->perchip_info.play.balance);
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315 |
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return 0;
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316 |
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}
|
317 |
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|
318 |
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static int dummy_get_output_balance(struct sparcaudio_driver *drv)
|
319 |
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{
|
320 |
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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321 |
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322 |
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return (int) dummy_chip->perchip_info.play.balance;
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323 |
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}
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324 |
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325 |
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/* Set chip play gain */
|
326 |
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static int dummy_play_gain(struct sparcaudio_driver *drv,
|
327 |
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int value, unsigned char balance)
|
328 |
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{
|
329 |
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struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
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330 |
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int tmp = 0, r, l, r_adj, l_adj;
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331 |
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|
332 |
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r = l = value;
|
333 |
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if (balance < AUDIO_MID_BALANCE) {
|
334 |
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r = (int) (value -
|
335 |
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((AUDIO_MID_BALANCE - balance) << AUDIO_BALANCE_SHIFT));
|
336 |
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|
337 |
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if (r < 0)
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338 |
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r = 0;
|
339 |
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} else if (balance > AUDIO_MID_BALANCE) {
|
340 |
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l = (int) (value -
|
341 |
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((balance - AUDIO_MID_BALANCE) << AUDIO_BALANCE_SHIFT));
|
342 |
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343 |
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if (l < 0)
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l = 0;
|
345 |
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}
|
346 |
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(l == 0) ? (l_adj = DUMMY_MAX_DEV_ATEN) : (l_adj = DUMMY_MAX_ATEN -
|
347 |
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(l * (DUMMY_MAX_ATEN + 1) /
|
348 |
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(AUDIO_MAX_GAIN + 1)));
|
349 |
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(r == 0) ? (r_adj = DUMMY_MAX_DEV_ATEN) : (r_adj = DUMMY_MAX_ATEN -
|
350 |
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(r * (DUMMY_MAX_ATEN + 1) /
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351 |
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(AUDIO_MAX_GAIN + 1)));
|
352 |
|
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if ((value == 0) || (value == AUDIO_MAX_GAIN)) {
|
353 |
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tmp = value;
|
354 |
|
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} else {
|
355 |
|
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if (value == l) {
|
356 |
|
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tmp = ((DUMMY_MAX_ATEN - l_adj) * (AUDIO_MAX_GAIN + 1) /
|
357 |
|
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(DUMMY_MAX_ATEN + 1));
|
358 |
|
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} else if (value == r) {
|
359 |
|
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tmp = ((DUMMY_MAX_ATEN - r_adj) * (AUDIO_MAX_GAIN + 1) /
|
360 |
|
|
(DUMMY_MAX_ATEN + 1));
|
361 |
|
|
}
|
362 |
|
|
}
|
363 |
|
|
dummy_chip->perchip_info.play.gain = tmp;
|
364 |
|
|
return 0;
|
365 |
|
|
}
|
366 |
|
|
|
367 |
|
|
static int dummy_get_input_samples(struct sparcaudio_driver *drv)
|
368 |
|
|
{
|
369 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
370 |
|
|
|
371 |
|
|
return dummy_chip->perchip_info.record.samples;
|
372 |
|
|
}
|
373 |
|
|
|
374 |
|
|
static int dummy_get_input_pause(struct sparcaudio_driver *drv)
|
375 |
|
|
{
|
376 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
377 |
|
|
|
378 |
|
|
return (int) dummy_chip->perchip_info.record.pause;
|
379 |
|
|
}
|
380 |
|
|
|
381 |
|
|
static int dummy_set_monitor_volume(struct sparcaudio_driver *drv, int value)
|
382 |
|
|
{
|
383 |
|
|
return 0;
|
384 |
|
|
}
|
385 |
|
|
|
386 |
|
|
static int dummy_get_monitor_volume(struct sparcaudio_driver *drv)
|
387 |
|
|
{
|
388 |
|
|
return 0;
|
389 |
|
|
}
|
390 |
|
|
|
391 |
|
|
static int dummy_set_input_volume(struct sparcaudio_driver *drv, int value)
|
392 |
|
|
{
|
393 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
394 |
|
|
|
395 |
|
|
dummy_record_gain(drv, value, dummy_chip->perchip_info.record.balance);
|
396 |
|
|
return 0;
|
397 |
|
|
}
|
398 |
|
|
|
399 |
|
|
static int dummy_get_input_volume(struct sparcaudio_driver *drv)
|
400 |
|
|
{
|
401 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
402 |
|
|
|
403 |
|
|
return dummy_chip->perchip_info.record.gain;
|
404 |
|
|
}
|
405 |
|
|
|
406 |
|
|
static int dummy_set_input_balance(struct sparcaudio_driver *drv, int value)
|
407 |
|
|
{
|
408 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
409 |
|
|
|
410 |
|
|
dummy_chip->perchip_info.record.balance = value;
|
411 |
|
|
dummy_record_gain(drv, dummy_chip->perchip_info.record.gain,
|
412 |
|
|
dummy_chip->perchip_info.play.balance);
|
413 |
|
|
return 0;
|
414 |
|
|
}
|
415 |
|
|
|
416 |
|
|
static int dummy_get_input_balance(struct sparcaudio_driver *drv)
|
417 |
|
|
{
|
418 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
419 |
|
|
|
420 |
|
|
return (int) dummy_chip->perchip_info.record.balance;
|
421 |
|
|
}
|
422 |
|
|
|
423 |
|
|
static int dummy_record_gain(struct sparcaudio_driver *drv,
|
424 |
|
|
int value, unsigned char balance)
|
425 |
|
|
{
|
426 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
427 |
|
|
int tmp = 0, r, l, r_adj, l_adj;
|
428 |
|
|
|
429 |
|
|
r = l = value;
|
430 |
|
|
if (balance < AUDIO_MID_BALANCE) {
|
431 |
|
|
r = (int) (value -
|
432 |
|
|
((AUDIO_MID_BALANCE - balance) << AUDIO_BALANCE_SHIFT));
|
433 |
|
|
|
434 |
|
|
if (r < 0)
|
435 |
|
|
r = 0;
|
436 |
|
|
} else if (balance > AUDIO_MID_BALANCE) {
|
437 |
|
|
l = (int) (value -
|
438 |
|
|
((balance - AUDIO_MID_BALANCE) << AUDIO_BALANCE_SHIFT));
|
439 |
|
|
|
440 |
|
|
if (l < 0)
|
441 |
|
|
l = 0;
|
442 |
|
|
}
|
443 |
|
|
(l == 0) ? (l_adj = DUMMY_MAX_DEV_ATEN) : (l_adj = DUMMY_MAX_ATEN -
|
444 |
|
|
(l * (DUMMY_MAX_ATEN + 1) /
|
445 |
|
|
(AUDIO_MAX_GAIN + 1)));
|
446 |
|
|
(r == 0) ? (r_adj = DUMMY_MAX_DEV_ATEN) : (r_adj = DUMMY_MAX_ATEN -
|
447 |
|
|
(r * (DUMMY_MAX_ATEN + 1) /
|
448 |
|
|
(AUDIO_MAX_GAIN + 1)));
|
449 |
|
|
if ((value == 0) || (value == AUDIO_MAX_GAIN)) {
|
450 |
|
|
tmp = value;
|
451 |
|
|
} else {
|
452 |
|
|
if (value == l) {
|
453 |
|
|
tmp = ((DUMMY_MAX_ATEN - l_adj) * (AUDIO_MAX_GAIN + 1) /
|
454 |
|
|
(DUMMY_MAX_ATEN + 1));
|
455 |
|
|
} else if (value == r) {
|
456 |
|
|
tmp = ((DUMMY_MAX_ATEN - r_adj) * (AUDIO_MAX_GAIN + 1) /
|
457 |
|
|
(DUMMY_MAX_ATEN + 1));
|
458 |
|
|
}
|
459 |
|
|
}
|
460 |
|
|
dummy_chip->perchip_info.record.gain = tmp;
|
461 |
|
|
return 0;
|
462 |
|
|
}
|
463 |
|
|
|
464 |
|
|
/* Reset the audio chip to a sane state. */
|
465 |
|
|
static void dummy_chip_reset(struct sparcaudio_driver *drv)
|
466 |
|
|
{
|
467 |
|
|
dummy_set_output_encoding(drv, AUDIO_ENCODING_ULAW);
|
468 |
|
|
dummy_set_output_rate(drv, DUMMY_RATE);
|
469 |
|
|
dummy_set_output_channels(drv, DUMMY_CHANNELS);
|
470 |
|
|
dummy_set_output_precision(drv, DUMMY_PRECISION);
|
471 |
|
|
dummy_set_output_balance(drv, AUDIO_MID_BALANCE);
|
472 |
|
|
dummy_set_output_volume(drv, DUMMY_DEFAULT_PLAYGAIN);
|
473 |
|
|
dummy_set_output_port(drv, AUDIO_SPEAKER);
|
474 |
|
|
dummy_output_muted(drv, 0);
|
475 |
|
|
dummy_set_input_encoding(drv, AUDIO_ENCODING_ULAW);
|
476 |
|
|
dummy_set_input_rate(drv, DUMMY_RATE);
|
477 |
|
|
dummy_set_input_channels(drv, DUMMY_CHANNELS);
|
478 |
|
|
dummy_set_input_precision(drv, DUMMY_PRECISION);
|
479 |
|
|
dummy_set_input_balance(drv, AUDIO_MID_BALANCE);
|
480 |
|
|
dummy_set_input_volume(drv, DUMMY_DEFAULT_PLAYGAIN);
|
481 |
|
|
dummy_set_input_port(drv, AUDIO_SPEAKER);
|
482 |
|
|
}
|
483 |
|
|
|
484 |
|
|
static int dummy_open(struct inode * inode, struct file * file, struct sparcaudio_driver *drv)
|
485 |
|
|
{
|
486 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
487 |
|
|
|
488 |
|
|
/* Set the default audio parameters if not already in use. */
|
489 |
|
|
if (file->f_mode & FMODE_WRITE) {
|
490 |
|
|
if (!(drv->flags & SDF_OPEN_WRITE) &&
|
491 |
|
|
(dummy_chip->perchip_info.play.active == 0)) {
|
492 |
|
|
dummy_chip->perchip_info.play.open = 1;
|
493 |
|
|
dummy_chip->perchip_info.play.samples =
|
494 |
|
|
dummy_chip->perchip_info.play.error = 0;
|
495 |
|
|
}
|
496 |
|
|
}
|
497 |
|
|
|
498 |
|
|
if (file->f_mode & FMODE_READ) {
|
499 |
|
|
if (!(drv->flags & SDF_OPEN_READ) &&
|
500 |
|
|
(dummy_chip->perchip_info.record.active == 0)) {
|
501 |
|
|
dummy_chip->perchip_info.record.open = 1;
|
502 |
|
|
dummy_chip->perchip_info.record.samples =
|
503 |
|
|
dummy_chip->perchip_info.record.error = 0;
|
504 |
|
|
}
|
505 |
|
|
}
|
506 |
|
|
|
507 |
|
|
MOD_INC_USE_COUNT;
|
508 |
|
|
|
509 |
|
|
return 0;
|
510 |
|
|
}
|
511 |
|
|
|
512 |
|
|
static void dummy_release(struct inode * inode, struct file * file, struct sparcaudio_driver *drv)
|
513 |
|
|
{
|
514 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
515 |
|
|
|
516 |
|
|
if (file->f_mode & FMODE_WRITE) {
|
517 |
|
|
dummy_chip->perchip_info.play.active =
|
518 |
|
|
dummy_chip->perchip_info.play.open = 0;
|
519 |
|
|
}
|
520 |
|
|
|
521 |
|
|
if (file->f_mode & FMODE_READ) {
|
522 |
|
|
dummy_chip->perchip_info.record.active =
|
523 |
|
|
dummy_chip->perchip_info.record.open = 0;
|
524 |
|
|
}
|
525 |
|
|
|
526 |
|
|
MOD_DEC_USE_COUNT;
|
527 |
|
|
}
|
528 |
|
|
|
529 |
|
|
static void dummy_output_done_task(void * arg)
|
530 |
|
|
{
|
531 |
|
|
struct sparcaudio_driver *drv = (struct sparcaudio_driver *) arg;
|
532 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
533 |
|
|
|
534 |
|
|
sparcaudio_output_done(drv, 1);
|
535 |
|
|
if (dummy_chip->perchip_info.record.active)
|
536 |
|
|
sparcaudio_input_done(drv, 1);
|
537 |
|
|
}
|
538 |
|
|
|
539 |
|
|
static void dummy_start_output(struct sparcaudio_driver *drv, __u8 * buffer,
|
540 |
|
|
unsigned long count)
|
541 |
|
|
{
|
542 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
543 |
|
|
|
544 |
|
|
if (dummy_chip->perchip_info.play.pause || !count)
|
545 |
|
|
return;
|
546 |
|
|
|
547 |
|
|
dummy_chip->perchip_info.play.active = 1;
|
548 |
|
|
|
549 |
|
|
/* fake an "interrupt" to deal with this block */
|
550 |
|
|
INIT_LIST_HEAD(&dummy_chip->tqueue.list);
|
551 |
|
|
dummy_chip->tqueue.sync = 0;
|
552 |
|
|
dummy_chip->tqueue.routine = dummy_output_done_task;
|
553 |
|
|
dummy_chip->tqueue.data = drv;
|
554 |
|
|
|
555 |
|
|
queue_task(&dummy_chip->tqueue, &tq_immediate);
|
556 |
|
|
mark_bh(IMMEDIATE_BH);
|
557 |
|
|
}
|
558 |
|
|
|
559 |
|
|
static void dummy_start_input(struct sparcaudio_driver *drv, __u8 * buffer,
|
560 |
|
|
unsigned long count)
|
561 |
|
|
{
|
562 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
563 |
|
|
|
564 |
|
|
dummy_chip->perchip_info.record.active = 1;
|
565 |
|
|
}
|
566 |
|
|
|
567 |
|
|
static void dummy_stop_output(struct sparcaudio_driver *drv)
|
568 |
|
|
{
|
569 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
570 |
|
|
|
571 |
|
|
dummy_chip->perchip_info.play.active = 0;
|
572 |
|
|
}
|
573 |
|
|
|
574 |
|
|
static void dummy_stop_input(struct sparcaudio_driver *drv)
|
575 |
|
|
{
|
576 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
577 |
|
|
|
578 |
|
|
dummy_chip->perchip_info.record.active = 0;
|
579 |
|
|
}
|
580 |
|
|
|
581 |
|
|
static int dummy_set_output_pause(struct sparcaudio_driver *drv, int value)
|
582 |
|
|
{
|
583 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
584 |
|
|
|
585 |
|
|
dummy_chip->perchip_info.play.pause = value;
|
586 |
|
|
|
587 |
|
|
if (!value)
|
588 |
|
|
sparcaudio_output_done(drv, 0);
|
589 |
|
|
|
590 |
|
|
return value;
|
591 |
|
|
}
|
592 |
|
|
|
593 |
|
|
static int dummy_set_input_pause(struct sparcaudio_driver *drv, int value)
|
594 |
|
|
{
|
595 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
596 |
|
|
|
597 |
|
|
dummy_chip->perchip_info.record.pause = value;
|
598 |
|
|
|
599 |
|
|
/* This should probably cause play pause. */
|
600 |
|
|
|
601 |
|
|
return value;
|
602 |
|
|
}
|
603 |
|
|
|
604 |
|
|
static int dummy_set_input_error(struct sparcaudio_driver *drv, int value)
|
605 |
|
|
{
|
606 |
|
|
return 0;
|
607 |
|
|
}
|
608 |
|
|
|
609 |
|
|
static int dummy_set_output_error(struct sparcaudio_driver *drv, int value)
|
610 |
|
|
{
|
611 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
612 |
|
|
int i;
|
613 |
|
|
|
614 |
|
|
i = dummy_chip->perchip_info.play.error;
|
615 |
|
|
dummy_chip->perchip_info.play.error = value;
|
616 |
|
|
return i;
|
617 |
|
|
}
|
618 |
|
|
|
619 |
|
|
static int dummy_set_output_samples(struct sparcaudio_driver *drv, int value)
|
620 |
|
|
{
|
621 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
622 |
|
|
int i;
|
623 |
|
|
|
624 |
|
|
i = dummy_chip->perchip_info.play.samples;
|
625 |
|
|
dummy_chip->perchip_info.play.samples = value;
|
626 |
|
|
return i;
|
627 |
|
|
}
|
628 |
|
|
|
629 |
|
|
static int dummy_set_input_samples(struct sparcaudio_driver *drv, int value)
|
630 |
|
|
{
|
631 |
|
|
struct dummy_chip *dummy_chip = (struct dummy_chip *) drv->private;
|
632 |
|
|
int i;
|
633 |
|
|
|
634 |
|
|
i = dummy_chip->perchip_info.play.samples;
|
635 |
|
|
dummy_chip->perchip_info.record.samples = value;
|
636 |
|
|
return i;
|
637 |
|
|
}
|
638 |
|
|
|
639 |
|
|
/* In order to fake things which care out, play we're a 4231 */
|
640 |
|
|
static void dummy_audio_getdev(struct sparcaudio_driver *drv,
|
641 |
|
|
audio_device_t * audinfo)
|
642 |
|
|
{
|
643 |
|
|
strncpy(audinfo->name, "SUNW,cs4231", sizeof(audinfo->name) - 1);
|
644 |
|
|
strncpy(audinfo->version, "a", sizeof(audinfo->version) - 1);
|
645 |
|
|
strncpy(audinfo->config, "onboard1", sizeof(audinfo->config) - 1);
|
646 |
|
|
}
|
647 |
|
|
|
648 |
|
|
|
649 |
|
|
static int dummy_audio_getdev_sunos(struct sparcaudio_driver *drv)
|
650 |
|
|
{
|
651 |
|
|
return 5;
|
652 |
|
|
}
|
653 |
|
|
|
654 |
|
|
static struct sparcaudio_operations dummy_ops = {
|
655 |
|
|
dummy_open,
|
656 |
|
|
dummy_release,
|
657 |
|
|
NULL,
|
658 |
|
|
dummy_start_output,
|
659 |
|
|
dummy_stop_output,
|
660 |
|
|
dummy_start_input,
|
661 |
|
|
dummy_stop_input,
|
662 |
|
|
dummy_audio_getdev,
|
663 |
|
|
dummy_set_output_volume,
|
664 |
|
|
dummy_get_output_volume,
|
665 |
|
|
dummy_set_input_volume,
|
666 |
|
|
dummy_get_input_volume,
|
667 |
|
|
dummy_set_monitor_volume,
|
668 |
|
|
dummy_get_monitor_volume,
|
669 |
|
|
dummy_set_output_balance,
|
670 |
|
|
dummy_get_output_balance,
|
671 |
|
|
dummy_set_input_balance,
|
672 |
|
|
dummy_get_input_balance,
|
673 |
|
|
dummy_set_output_channels,
|
674 |
|
|
dummy_get_output_channels,
|
675 |
|
|
dummy_set_input_channels,
|
676 |
|
|
dummy_get_input_channels,
|
677 |
|
|
dummy_set_output_precision,
|
678 |
|
|
dummy_get_output_precision,
|
679 |
|
|
dummy_set_input_precision,
|
680 |
|
|
dummy_get_input_precision,
|
681 |
|
|
dummy_set_output_port,
|
682 |
|
|
dummy_get_output_port,
|
683 |
|
|
dummy_set_input_port,
|
684 |
|
|
dummy_get_input_port,
|
685 |
|
|
dummy_set_output_encoding,
|
686 |
|
|
dummy_get_output_encoding,
|
687 |
|
|
dummy_set_input_encoding,
|
688 |
|
|
dummy_get_input_encoding,
|
689 |
|
|
dummy_set_output_rate,
|
690 |
|
|
dummy_get_output_rate,
|
691 |
|
|
dummy_set_input_rate,
|
692 |
|
|
dummy_get_input_rate,
|
693 |
|
|
dummy_audio_getdev_sunos,
|
694 |
|
|
dummy_get_output_ports,
|
695 |
|
|
dummy_get_input_ports,
|
696 |
|
|
dummy_output_muted,
|
697 |
|
|
dummy_get_output_muted,
|
698 |
|
|
dummy_set_output_pause,
|
699 |
|
|
dummy_get_output_pause,
|
700 |
|
|
dummy_set_input_pause,
|
701 |
|
|
dummy_get_input_pause,
|
702 |
|
|
dummy_set_output_samples,
|
703 |
|
|
dummy_get_output_samples,
|
704 |
|
|
dummy_set_input_samples,
|
705 |
|
|
dummy_get_input_samples,
|
706 |
|
|
dummy_set_output_error,
|
707 |
|
|
dummy_get_output_error,
|
708 |
|
|
dummy_set_input_error,
|
709 |
|
|
dummy_get_input_error,
|
710 |
|
|
dummy_get_formats,
|
711 |
|
|
};
|
712 |
|
|
|
713 |
|
|
/* Attach to an dummy chip given its PROM node. */
|
714 |
|
|
static int __init dummy_attach(struct sparcaudio_driver *drv)
|
715 |
|
|
{
|
716 |
|
|
struct dummy_chip *dummy_chip;
|
717 |
|
|
int err;
|
718 |
|
|
|
719 |
|
|
/* Allocate our private information structure. */
|
720 |
|
|
drv->private = kmalloc(sizeof(struct dummy_chip), GFP_KERNEL);
|
721 |
|
|
if (drv->private == NULL)
|
722 |
|
|
return -ENOMEM;
|
723 |
|
|
|
724 |
|
|
/* Point at the information structure and initialize it. */
|
725 |
|
|
drv->ops = &dummy_ops;
|
726 |
|
|
dummy_chip = (struct dummy_chip *) drv->private;
|
727 |
|
|
|
728 |
|
|
/* Reset parameters. */
|
729 |
|
|
dummy_chip_reset(drv);
|
730 |
|
|
|
731 |
|
|
/* Register ourselves with the midlevel audio driver. */
|
732 |
|
|
err = register_sparcaudio_driver(drv, 2);
|
733 |
|
|
|
734 |
|
|
if (err < 0) {
|
735 |
|
|
printk(KERN_ERR "dummy: unable to register\n");
|
736 |
|
|
kfree(drv->private);
|
737 |
|
|
return -EIO;
|
738 |
|
|
}
|
739 |
|
|
|
740 |
|
|
dummy_chip->perchip_info.play.active =
|
741 |
|
|
dummy_chip->perchip_info.play.pause = 0;
|
742 |
|
|
|
743 |
|
|
dummy_chip->perchip_info.play.avail_ports = (AUDIO_HEADPHONE |
|
744 |
|
|
AUDIO_SPEAKER |
|
745 |
|
|
AUDIO_LINE_OUT);
|
746 |
|
|
|
747 |
|
|
/* Announce the hardware to the user. */
|
748 |
|
|
printk(KERN_INFO "audio%d: dummy at 0x0 irq 0\n", drv->index);
|
749 |
|
|
|
750 |
|
|
/* Success! */
|
751 |
|
|
return 0;
|
752 |
|
|
}
|
753 |
|
|
|
754 |
|
|
/* Detach from an dummy chip given the device structure. */
|
755 |
|
|
static void __exit dummy_detach(struct sparcaudio_driver *drv)
|
756 |
|
|
{
|
757 |
|
|
unregister_sparcaudio_driver(drv, 2);
|
758 |
|
|
kfree(drv->private);
|
759 |
|
|
}
|
760 |
|
|
|
761 |
|
|
/* Probe for the dummy chip and then attach the driver. */
|
762 |
|
|
static int __init dummy_init(void)
|
763 |
|
|
{
|
764 |
|
|
num_drivers = 0;
|
765 |
|
|
|
766 |
|
|
/* Add support here for specifying multiple dummies to attach at once. */
|
767 |
|
|
if (dummy_attach(&drivers[num_drivers]) == 0)
|
768 |
|
|
num_drivers++;
|
769 |
|
|
|
770 |
|
|
/* Only return success if we found some dummy chips. */
|
771 |
|
|
return (num_drivers > 0) ? 0 : -EIO;
|
772 |
|
|
}
|
773 |
|
|
|
774 |
|
|
static void __exit dummy_exit(void)
|
775 |
|
|
{
|
776 |
|
|
int i;
|
777 |
|
|
|
778 |
|
|
for (i = 0; i < num_drivers; i++) {
|
779 |
|
|
dummy_detach(&drivers[i]);
|
780 |
|
|
num_drivers--;
|
781 |
|
|
}
|
782 |
|
|
}
|
783 |
|
|
|
784 |
|
|
module_init(dummy_init);
|
785 |
|
|
module_exit(dummy_exit);
|
786 |
|
|
MODULE_LICENSE("GPL");
|
787 |
|
|
|
788 |
|
|
/*
|
789 |
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
790 |
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
791 |
|
|
* adjust the settings for this buffer only. This must remain at the end
|
792 |
|
|
* of the file.
|
793 |
|
|
* ---------------------------------------------------------------------------
|
794 |
|
|
* Local variables:
|
795 |
|
|
* c-indent-level: 4
|
796 |
|
|
* c-brace-imaginary-offset: 0
|
797 |
|
|
* c-brace-offset: -4
|
798 |
|
|
* c-argdecl-indent: 4
|
799 |
|
|
* c-label-offset: -4
|
800 |
|
|
* c-continued-statement-offset: 4
|
801 |
|
|
* c-continued-brace-offset: 0
|
802 |
|
|
* indent-tabs-mode: nil
|
803 |
|
|
* tab-width: 8
|
804 |
|
|
* End:
|
805 |
|
|
*/
|