* soc-dapm.c -- ALSA SoC Dynamic Audio Power Management
*
* Copyright 2005 Wolfson Microelectronics PLC.
- * Author: Liam Girdwood
- * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Features:
* o Changes power status of internal codec blocks depending on the
* dynamic configuration of codec internal audio paths and active
- * DAC's/ADC's.
+ * DACs/ADCs.
* o Platform power domain - can support external components i.e. amps and
* mic/meadphone insertion events.
* o Automatic Mic Bias support
#include <linux/bitops.h>
#include <linux/platform_device.h>
#include <linux/jiffies.h>
-#include <linux/debugfs.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
/* dapm power sequences - make this per codec in the future */
static int dapm_up_seq[] = {
- snd_soc_dapm_pre, snd_soc_dapm_micbias, snd_soc_dapm_mic,
- snd_soc_dapm_mux, snd_soc_dapm_dac, snd_soc_dapm_mixer, snd_soc_dapm_pga,
- snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk, snd_soc_dapm_post
+ snd_soc_dapm_pre, snd_soc_dapm_supply, snd_soc_dapm_micbias,
+ snd_soc_dapm_mic, snd_soc_dapm_mux, snd_soc_dapm_value_mux,
+ snd_soc_dapm_dac, snd_soc_dapm_mixer, snd_soc_dapm_mixer_named_ctl,
+ snd_soc_dapm_pga, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk,
+ snd_soc_dapm_post
};
+
static int dapm_down_seq[] = {
snd_soc_dapm_pre, snd_soc_dapm_adc, snd_soc_dapm_hp, snd_soc_dapm_spk,
- snd_soc_dapm_pga, snd_soc_dapm_mixer, snd_soc_dapm_dac, snd_soc_dapm_mic,
- snd_soc_dapm_micbias, snd_soc_dapm_mux, snd_soc_dapm_post
+ snd_soc_dapm_pga, snd_soc_dapm_mixer_named_ctl, snd_soc_dapm_mixer,
+ snd_soc_dapm_dac, snd_soc_dapm_mic, snd_soc_dapm_micbias,
+ snd_soc_dapm_mux, snd_soc_dapm_value_mux, snd_soc_dapm_supply,
+ snd_soc_dapm_post
};
-static int dapm_status = 1;
-module_param(dapm_status, int, 0);
-MODULE_PARM_DESC(dapm_status, "enable DPM sysfs entries");
-
-static struct dentry *asoc_debugfs;
-
-static u32 pop_time;
-
-static void pop_wait(void)
+static void pop_wait(u32 pop_time)
{
if (pop_time)
schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time));
}
-static void pop_dbg(const char *fmt, ...)
+static void pop_dbg(u32 pop_time, const char *fmt, ...)
{
va_list args;
if (pop_time) {
vprintk(fmt, args);
- pop_wait();
+ pop_wait(pop_time);
}
va_end(args);
return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);
}
+/**
+ * snd_soc_dapm_set_bias_level - set the bias level for the system
+ * @socdev: audio device
+ * @level: level to configure
+ *
+ * Configure the bias (power) levels for the SoC audio device.
+ *
+ * Returns 0 for success else error.
+ */
+static int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
+ enum snd_soc_bias_level level)
+{
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_codec *codec = socdev->card->codec;
+ int ret = 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ dev_dbg(socdev->dev, "Setting full bias\n");
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ dev_dbg(socdev->dev, "Setting bias prepare\n");
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ dev_dbg(socdev->dev, "Setting standby bias\n");
+ break;
+ case SND_SOC_BIAS_OFF:
+ dev_dbg(socdev->dev, "Setting bias off\n");
+ break;
+ default:
+ dev_err(socdev->dev, "Setting invalid bias %d\n", level);
+ return -EINVAL;
+ }
+
+ if (card->set_bias_level)
+ ret = card->set_bias_level(card, level);
+ if (ret == 0 && codec->set_bias_level)
+ ret = codec->set_bias_level(codec, level);
+
+ return ret;
+}
+
/* set up initial codec paths */
static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
struct snd_soc_dapm_path *p, int i)
{
switch (w->id) {
case snd_soc_dapm_switch:
- case snd_soc_dapm_mixer: {
+ case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl: {
int val;
struct soc_mixer_control *mc = (struct soc_mixer_control *)
w->kcontrols[i].private_value;
}
}
break;
+ case snd_soc_dapm_value_mux: {
+ struct soc_enum *e = (struct soc_enum *)
+ w->kcontrols[i].private_value;
+ int val, item;
+
+ val = snd_soc_read(w->codec, e->reg);
+ val = (val >> e->shift_l) & e->mask;
+ for (item = 0; item < e->max; item++) {
+ if (val == e->values[item])
+ break;
+ }
+
+ p->connect = 0;
+ for (i = 0; i < e->max; i++) {
+ if (!(strcmp(p->name, e->texts[i])) && item == i)
+ p->connect = 1;
+ }
+ }
+ break;
/* does not effect routing - always connected */
case snd_soc_dapm_pga:
case snd_soc_dapm_output:
case snd_soc_dapm_dac:
case snd_soc_dapm_micbias:
case snd_soc_dapm_vmid:
+ case snd_soc_dapm_supply:
p->connect = 1;
break;
/* does effect routing - dynamically connected */
}
}
-/* connect mux widget to it's interconnecting audio paths */
+/* connect mux widget to its interconnecting audio paths */
static int dapm_connect_mux(struct snd_soc_codec *codec,
struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
struct snd_soc_dapm_path *path, const char *control_name,
return -ENODEV;
}
-/* connect mixer widget to it's interconnecting audio paths */
+/* connect mixer widget to its interconnecting audio paths */
static int dapm_connect_mixer(struct snd_soc_codec *codec,
struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest,
struct snd_soc_dapm_path *path, const char *control_name)
change = old != new;
if (change) {
- pop_dbg("pop test %s : %s in %d ms\n", widget->name,
- widget->power ? "on" : "off", pop_time);
+ pop_dbg(codec->pop_time, "pop test %s : %s in %d ms\n",
+ widget->name, widget->power ? "on" : "off",
+ codec->pop_time);
snd_soc_write(codec, widget->reg, new);
- pop_wait();
+ pop_wait(codec->pop_time);
}
pr_debug("reg %x old %x new %x change %d\n", widget->reg,
old, new, change);
struct snd_soc_dapm_widget *w)
{
int i, ret = 0;
- char name[32];
+ size_t name_len;
struct snd_soc_dapm_path *path;
/* add kcontrol */
if (path->name != (char*)w->kcontrols[i].name)
continue;
- /* add dapm control with long name */
- snprintf(name, 32, "%s %s", w->name, w->kcontrols[i].name);
- path->long_name = kstrdup (name, GFP_KERNEL);
+ /* add dapm control with long name.
+ * for dapm_mixer this is the concatenation of the
+ * mixer and kcontrol name.
+ * for dapm_mixer_named_ctl this is simply the
+ * kcontrol name.
+ */
+ name_len = strlen(w->kcontrols[i].name) + 1;
+ if (w->id != snd_soc_dapm_mixer_named_ctl)
+ name_len += 1 + strlen(w->name);
+
+ path->long_name = kmalloc(name_len, GFP_KERNEL);
+
if (path->long_name == NULL)
return -ENOMEM;
+ switch (w->id) {
+ default:
+ snprintf(path->long_name, name_len, "%s %s",
+ w->name, w->kcontrols[i].name);
+ break;
+ case snd_soc_dapm_mixer_named_ctl:
+ snprintf(path->long_name, name_len, "%s",
+ w->kcontrols[i].name);
+ break;
+ }
+
+ path->long_name[name_len - 1] = '\0';
+
path->kcontrol = snd_soc_cnew(&w->kcontrols[i], w,
path->long_name);
ret = snd_ctl_add(codec->card, path->kcontrol);
if (ret < 0) {
- printk(KERN_ERR "asoc: failed to add dapm kcontrol %s\n",
- path->long_name);
+ printk(KERN_ERR "asoc: failed to add dapm kcontrol %s: %d\n",
+ path->long_name,
+ ret);
kfree(path->long_name);
path->long_name = NULL;
return ret;
struct snd_soc_dapm_path *path;
int con = 0;
+ if (widget->id == snd_soc_dapm_supply)
+ return 0;
+
if (widget->id == snd_soc_dapm_adc && widget->active)
return 1;
struct snd_soc_dapm_path *path;
int con = 0;
+ if (widget->id == snd_soc_dapm_supply)
+ return 0;
+
/* active stream ? */
if (widget->id == snd_soc_dapm_dac && widget->active)
return 1;
}
EXPORT_SYMBOL_GPL(dapm_reg_event);
+/* Standard power change method, used to apply power changes to most
+ * widgets.
+ */
+static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w)
+{
+ int ret;
+
+ /* call any power change event handlers */
+ if (w->event)
+ pr_debug("power %s event for %s flags %x\n",
+ w->power ? "on" : "off",
+ w->name, w->event_flags);
+
+ /* power up pre event */
+ if (w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
+ ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* power down pre event */
+ if (!w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
+ ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* Lower PGA volume to reduce pops */
+ if (w->id == snd_soc_dapm_pga && !w->power)
+ dapm_set_pga(w, w->power);
+
+ dapm_update_bits(w);
+
+ /* Raise PGA volume to reduce pops */
+ if (w->id == snd_soc_dapm_pga && w->power)
+ dapm_set_pga(w, w->power);
+
+ /* power up post event */
+ if (w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
+ ret = w->event(w,
+ NULL, SND_SOC_DAPM_POST_PMU);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* power down post event */
+ if (!w->power && w->event &&
+ (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
+ ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/* Generic check to see if a widget should be powered.
+ */
+static int dapm_generic_check_power(struct snd_soc_dapm_widget *w)
+{
+ int in, out;
+
+ in = is_connected_input_ep(w);
+ dapm_clear_walk(w->codec);
+ out = is_connected_output_ep(w);
+ dapm_clear_walk(w->codec);
+ return out != 0 && in != 0;
+}
+
+/* Check to see if an ADC has power */
+static int dapm_adc_check_power(struct snd_soc_dapm_widget *w)
+{
+ int in;
+
+ if (w->active) {
+ in = is_connected_input_ep(w);
+ dapm_clear_walk(w->codec);
+ return in != 0;
+ } else {
+ return dapm_generic_check_power(w);
+ }
+}
+
+/* Check to see if a DAC has power */
+static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
+{
+ int out;
+
+ if (w->active) {
+ out = is_connected_output_ep(w);
+ dapm_clear_walk(w->codec);
+ return out != 0;
+ } else {
+ return dapm_generic_check_power(w);
+ }
+}
+
+/* Check to see if a power supply is needed */
+static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
+{
+ struct snd_soc_dapm_path *path;
+ int power = 0;
+
+ /* Check if one of our outputs is connected */
+ list_for_each_entry(path, &w->sinks, list_source) {
+ if (path->sink && path->sink->power_check &&
+ path->sink->power_check(path->sink)) {
+ power = 1;
+ break;
+ }
+ }
+
+ dapm_clear_walk(w->codec);
+
+ return power;
+}
+
+/*
+ * Scan a single DAPM widget for a complete audio path and update the
+ * power status appropriately.
+ */
+static int dapm_power_widget(struct snd_soc_codec *codec, int event,
+ struct snd_soc_dapm_widget *w)
+{
+ int ret;
+
+ switch (w->id) {
+ case snd_soc_dapm_pre:
+ if (!w->event)
+ return 0;
+
+ if (event == SND_SOC_DAPM_STREAM_START) {
+ ret = w->event(w,
+ NULL, SND_SOC_DAPM_PRE_PMU);
+ if (ret < 0)
+ return ret;
+ } else if (event == SND_SOC_DAPM_STREAM_STOP) {
+ ret = w->event(w,
+ NULL, SND_SOC_DAPM_PRE_PMD);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+
+ case snd_soc_dapm_post:
+ if (!w->event)
+ return 0;
+
+ if (event == SND_SOC_DAPM_STREAM_START) {
+ ret = w->event(w,
+ NULL, SND_SOC_DAPM_POST_PMU);
+ if (ret < 0)
+ return ret;
+ } else if (event == SND_SOC_DAPM_STREAM_STOP) {
+ ret = w->event(w,
+ NULL, SND_SOC_DAPM_POST_PMD);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+
+ default:
+ return dapm_generic_apply_power(w);
+ }
+}
+
/*
* Scan each dapm widget for complete audio path.
* A complete path is a route that has valid endpoints i.e.:-
*/
static int dapm_power_widgets(struct snd_soc_codec *codec, int event)
{
+ struct snd_soc_device *socdev = codec->socdev;
struct snd_soc_dapm_widget *w;
- int in, out, i, c = 1, *seq = NULL, ret = 0, power_change, power;
-
- /* do we have a sequenced stream event */
- if (event == SND_SOC_DAPM_STREAM_START) {
- c = ARRAY_SIZE(dapm_up_seq);
- seq = dapm_up_seq;
- } else if (event == SND_SOC_DAPM_STREAM_STOP) {
- c = ARRAY_SIZE(dapm_down_seq);
- seq = dapm_down_seq;
- }
+ int ret = 0;
+ int i, power;
+ int sys_power = 0;
- for(i = 0; i < c; i++) {
- list_for_each_entry(w, &codec->dapm_widgets, list) {
+ INIT_LIST_HEAD(&codec->up_list);
+ INIT_LIST_HEAD(&codec->down_list);
- /* is widget in stream order */
- if (seq && seq[i] && w->id != seq[i])
- continue;
+ /* Check which widgets we need to power and store them in
+ * lists indicating if they should be powered up or down.
+ */
+ list_for_each_entry(w, &codec->dapm_widgets, list) {
+ switch (w->id) {
+ case snd_soc_dapm_pre:
+ list_add_tail(&codec->down_list, &w->power_list);
+ break;
+ case snd_soc_dapm_post:
+ list_add_tail(&codec->up_list, &w->power_list);
+ break;
- /* vmid - no action */
- if (w->id == snd_soc_dapm_vmid)
+ default:
+ if (!w->power_check)
continue;
- /* active ADC */
- if (w->id == snd_soc_dapm_adc && w->active) {
- in = is_connected_input_ep(w);
- dapm_clear_walk(w->codec);
- w->power = (in != 0) ? 1 : 0;
- dapm_update_bits(w);
- continue;
- }
+ power = w->power_check(w);
+ if (power)
+ sys_power = 1;
- /* active DAC */
- if (w->id == snd_soc_dapm_dac && w->active) {
- out = is_connected_output_ep(w);
- dapm_clear_walk(w->codec);
- w->power = (out != 0) ? 1 : 0;
- dapm_update_bits(w);
+ if (w->power == power)
continue;
- }
- /* pre and post event widgets */
- if (w->id == snd_soc_dapm_pre) {
- if (!w->event)
- continue;
-
- if (event == SND_SOC_DAPM_STREAM_START) {
- ret = w->event(w,
- NULL, SND_SOC_DAPM_PRE_PMU);
- if (ret < 0)
- return ret;
- } else if (event == SND_SOC_DAPM_STREAM_STOP) {
- ret = w->event(w,
- NULL, SND_SOC_DAPM_PRE_PMD);
- if (ret < 0)
- return ret;
- }
- continue;
- }
- if (w->id == snd_soc_dapm_post) {
- if (!w->event)
- continue;
-
- if (event == SND_SOC_DAPM_STREAM_START) {
- ret = w->event(w,
- NULL, SND_SOC_DAPM_POST_PMU);
- if (ret < 0)
- return ret;
- } else if (event == SND_SOC_DAPM_STREAM_STOP) {
- ret = w->event(w,
- NULL, SND_SOC_DAPM_POST_PMD);
- if (ret < 0)
- return ret;
- }
- continue;
- }
+ if (power)
+ list_add_tail(&w->power_list, &codec->up_list);
+ else
+ list_add_tail(&w->power_list,
+ &codec->down_list);
- /* all other widgets */
- in = is_connected_input_ep(w);
- dapm_clear_walk(w->codec);
- out = is_connected_output_ep(w);
- dapm_clear_walk(w->codec);
- power = (out != 0 && in != 0) ? 1 : 0;
- power_change = (w->power == power) ? 0: 1;
w->power = power;
+ break;
+ }
+ }
- if (!power_change)
- continue;
-
- /* call any power change event handlers */
- if (w->event)
- pr_debug("power %s event for %s flags %x\n",
- w->power ? "on" : "off",
- w->name, w->event_flags);
-
- /* power up pre event */
- if (power && w->event &&
- (w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
- ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
- if (ret < 0)
- return ret;
- }
+ /* If we're changing to all on or all off then prepare */
+ if ((sys_power && codec->bias_level == SND_SOC_BIAS_STANDBY) ||
+ (!sys_power && codec->bias_level == SND_SOC_BIAS_ON)) {
+ ret = snd_soc_dapm_set_bias_level(socdev,
+ SND_SOC_BIAS_PREPARE);
+ if (ret != 0)
+ pr_err("Failed to prepare bias: %d\n", ret);
+ }
- /* power down pre event */
- if (!power && w->event &&
- (w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
- ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
- if (ret < 0)
- return ret;
- }
+ /* Power down widgets first; try to avoid amplifying pops. */
+ for (i = 0; i < ARRAY_SIZE(dapm_down_seq); i++) {
+ list_for_each_entry(w, &codec->down_list, power_list) {
+ /* is widget in stream order */
+ if (w->id != dapm_down_seq[i])
+ continue;
- /* Lower PGA volume to reduce pops */
- if (w->id == snd_soc_dapm_pga && !power)
- dapm_set_pga(w, power);
+ ret = dapm_power_widget(codec, event, w);
+ if (ret != 0)
+ pr_err("Failed to power down %s: %d\n",
+ w->name, ret);
+ }
+ }
- dapm_update_bits(w);
+ /* Now power up. */
+ for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) {
+ list_for_each_entry(w, &codec->up_list, power_list) {
+ /* is widget in stream order */
+ if (w->id != dapm_up_seq[i])
+ continue;
- /* Raise PGA volume to reduce pops */
- if (w->id == snd_soc_dapm_pga && power)
- dapm_set_pga(w, power);
+ ret = dapm_power_widget(codec, event, w);
+ if (ret != 0)
+ pr_err("Failed to power up %s: %d\n",
+ w->name, ret);
+ }
+ }
- /* power up post event */
- if (power && w->event &&
- (w->event_flags & SND_SOC_DAPM_POST_PMU)) {
- ret = w->event(w,
- NULL, SND_SOC_DAPM_POST_PMU);
- if (ret < 0)
- return ret;
- }
+ /* If we just powered the last thing off drop to standby bias */
+ if (codec->bias_level == SND_SOC_BIAS_PREPARE && !sys_power) {
+ ret = snd_soc_dapm_set_bias_level(socdev,
+ SND_SOC_BIAS_STANDBY);
+ if (ret != 0)
+ pr_err("Failed to apply standby bias: %d\n", ret);
+ }
- /* power down post event */
- if (!power && w->event &&
- (w->event_flags & SND_SOC_DAPM_POST_PMD)) {
- ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
- if (ret < 0)
- return ret;
- }
- }
+ /* If we just powered up then move to active bias */
+ if (codec->bias_level == SND_SOC_BIAS_PREPARE && sys_power) {
+ ret = snd_soc_dapm_set_bias_level(socdev,
+ SND_SOC_BIAS_ON);
+ if (ret != 0)
+ pr_err("Failed to apply active bias: %d\n", ret);
}
- return ret;
+ return 0;
}
#ifdef DEBUG
case snd_soc_dapm_vmid:
continue;
case snd_soc_dapm_mux:
+ case snd_soc_dapm_value_mux:
case snd_soc_dapm_output:
case snd_soc_dapm_input:
case snd_soc_dapm_switch:
case snd_soc_dapm_adc:
case snd_soc_dapm_pga:
case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl:
+ case snd_soc_dapm_supply:
if (w->name) {
in = is_connected_input_ep(w);
dapm_clear_walk(w->codec);
struct snd_soc_dapm_path *path;
int found = 0;
- if (widget->id != snd_soc_dapm_mux)
+ if (widget->id != snd_soc_dapm_mux &&
+ widget->id != snd_soc_dapm_value_mux)
return -ENODEV;
if (!snd_soc_test_bits(widget->codec, e->reg, mask, val))
int found = 0;
if (widget->id != snd_soc_dapm_mixer &&
+ widget->id != snd_soc_dapm_mixer_named_ctl &&
widget->id != snd_soc_dapm_switch)
return -ENODEV;
struct device_attribute *attr, char *buf)
{
struct snd_soc_device *devdata = dev_get_drvdata(dev);
- struct snd_soc_codec *codec = devdata->codec;
+ struct snd_soc_codec *codec = devdata->card->codec;
struct snd_soc_dapm_widget *w;
int count = 0;
char *state = "not set";
case snd_soc_dapm_adc:
case snd_soc_dapm_pga:
case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl:
+ case snd_soc_dapm_supply:
if (w->name)
count += sprintf(buf + count, "%s: %s\n",
w->name, w->power ? "On":"Off");
int snd_soc_dapm_sys_add(struct device *dev)
{
- int ret = 0;
-
- if (!dapm_status)
- return 0;
-
- ret = device_create_file(dev, &dev_attr_dapm_widget);
- if (ret != 0)
- return ret;
-
- asoc_debugfs = debugfs_create_dir("asoc", NULL);
- if (!IS_ERR(asoc_debugfs))
- debugfs_create_u32("dapm_pop_time", 0744, asoc_debugfs,
- &pop_time);
- else
- asoc_debugfs = NULL;
-
- return 0;
+ return device_create_file(dev, &dev_attr_dapm_widget);
}
static void snd_soc_dapm_sys_remove(struct device *dev)
{
- if (dapm_status) {
- device_remove_file(dev, &dev_attr_dapm_widget);
- }
-
- if (asoc_debugfs)
- debugfs_remove_recursive(asoc_debugfs);
+ device_remove_file(dev, &dev_attr_dapm_widget);
}
/* free all dapm widgets and resources */
}
static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec,
- char *pin, int status)
+ const char *pin, int status)
{
struct snd_soc_dapm_widget *w;
case snd_soc_dapm_vmid:
case snd_soc_dapm_pre:
case snd_soc_dapm_post:
+ case snd_soc_dapm_supply:
list_add(&path->list, &codec->dapm_paths);
list_add(&path->list_sink, &wsink->sources);
list_add(&path->list_source, &wsource->sinks);
path->connect = 1;
return 0;
case snd_soc_dapm_mux:
+ case snd_soc_dapm_value_mux:
ret = dapm_connect_mux(codec, wsource, wsink, path, control,
&wsink->kcontrols[0]);
if (ret != 0)
break;
case snd_soc_dapm_switch:
case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl:
ret = dapm_connect_mixer(codec, wsource, wsink, path, control);
if (ret != 0)
goto err;
}
/**
- * snd_soc_dapm_connect_input - connect dapm widgets
- * @codec: audio codec
- * @sink: name of target widget
- * @control: mixer control name
- * @source: name of source name
- *
- * Connects 2 dapm widgets together via a named audio path. The sink is
- * the widget receiving the audio signal, whilst the source is the sender
- * of the audio signal.
- *
- * This function has been deprecated in favour of snd_soc_dapm_add_routes().
- *
- * Returns 0 for success else error.
- */
-int snd_soc_dapm_connect_input(struct snd_soc_codec *codec, const char *sink,
- const char *control, const char *source)
-{
- return snd_soc_dapm_add_route(codec, sink, control, source);
-}
-EXPORT_SYMBOL_GPL(snd_soc_dapm_connect_input);
-
-/**
* snd_soc_dapm_add_routes - Add routes between DAPM widgets
* @codec: codec
* @route: audio routes
switch(w->id) {
case snd_soc_dapm_switch:
case snd_soc_dapm_mixer:
+ case snd_soc_dapm_mixer_named_ctl:
+ w->power_check = dapm_generic_check_power;
dapm_new_mixer(codec, w);
break;
case snd_soc_dapm_mux:
+ case snd_soc_dapm_value_mux:
+ w->power_check = dapm_generic_check_power;
dapm_new_mux(codec, w);
break;
case snd_soc_dapm_adc:
+ w->power_check = dapm_adc_check_power;
+ break;
case snd_soc_dapm_dac:
+ w->power_check = dapm_dac_check_power;
+ break;
case snd_soc_dapm_pga:
+ w->power_check = dapm_generic_check_power;
dapm_new_pga(codec, w);
break;
case snd_soc_dapm_input:
case snd_soc_dapm_hp:
case snd_soc_dapm_mic:
case snd_soc_dapm_line:
+ w->power_check = dapm_generic_check_power;
+ break;
+ case snd_soc_dapm_supply:
+ w->power_check = dapm_supply_check_power;
case snd_soc_dapm_vmid:
case snd_soc_dapm_pre:
case snd_soc_dapm_post:
/**
* snd_soc_dapm_get_volsw - dapm mixer get callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to get the value of a dapm mixer control.
*
/**
* snd_soc_dapm_put_volsw - dapm mixer set callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to set the value of a dapm mixer control.
*
/**
* snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to get the value of a dapm enumerated double mixer control.
*
/**
* snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to set the value of a dapm enumerated double mixer control.
*
EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double);
/**
+ * snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get
+ * callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a dapm semi enumerated double mixer control.
+ *
+ * Semi enumerated mixer: the enumerated items are referred as values. Can be
+ * used for handling bitfield coded enumeration for example.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned short reg_val, val, mux;
+
+ reg_val = snd_soc_read(widget->codec, e->reg);
+ val = (reg_val >> e->shift_l) & e->mask;
+ for (mux = 0; mux < e->max; mux++) {
+ if (val == e->values[mux])
+ break;
+ }
+ ucontrol->value.enumerated.item[0] = mux;
+ if (e->shift_l != e->shift_r) {
+ val = (reg_val >> e->shift_r) & e->mask;
+ for (mux = 0; mux < e->max; mux++) {
+ if (val == e->values[mux])
+ break;
+ }
+ ucontrol->value.enumerated.item[1] = mux;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double);
+
+/**
+ * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set
+ * callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a dapm semi enumerated double mixer control.
+ *
+ * Semi enumerated mixer: the enumerated items are referred as values. Can be
+ * used for handling bitfield coded enumeration for example.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned short val, mux;
+ unsigned short mask;
+ int ret = 0;
+
+ if (ucontrol->value.enumerated.item[0] > e->max - 1)
+ return -EINVAL;
+ mux = ucontrol->value.enumerated.item[0];
+ val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
+ mask = e->mask << e->shift_l;
+ if (e->shift_l != e->shift_r) {
+ if (ucontrol->value.enumerated.item[1] > e->max - 1)
+ return -EINVAL;
+ val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
+ mask |= e->mask << e->shift_r;
+ }
+
+ mutex_lock(&widget->codec->mutex);
+ widget->value = val;
+ dapm_mux_update_power(widget, kcontrol, mask, mux, val, e);
+ if (widget->event) {
+ if (widget->event_flags & SND_SOC_DAPM_PRE_REG) {
+ ret = widget->event(widget,
+ kcontrol, SND_SOC_DAPM_PRE_REG);
+ if (ret < 0)
+ goto out;
+ }
+ ret = snd_soc_update_bits(widget->codec, e->reg, mask, val);
+ if (widget->event_flags & SND_SOC_DAPM_POST_REG)
+ ret = widget->event(widget,
+ kcontrol, SND_SOC_DAPM_POST_REG);
+ } else
+ ret = snd_soc_update_bits(widget->codec, e->reg, mask, val);
+
+out:
+ mutex_unlock(&widget->codec->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double);
+
+/**
+ * snd_soc_dapm_info_pin_switch - Info for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a pin switch control.
+ */
+int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch);
+
+/**
+ * snd_soc_dapm_get_pin_switch - Get information for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @ucontrol: Value
+ */
+int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ const char *pin = (const char *)kcontrol->private_value;
+
+ mutex_lock(&codec->mutex);
+
+ ucontrol->value.integer.value[0] =
+ snd_soc_dapm_get_pin_status(codec, pin);
+
+ mutex_unlock(&codec->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch);
+
+/**
+ * snd_soc_dapm_put_pin_switch - Set information for a pin switch
+ *
+ * @kcontrol: mixer control
+ * @ucontrol: Value
+ */
+int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ const char *pin = (const char *)kcontrol->private_value;
+
+ mutex_lock(&codec->mutex);
+
+ if (ucontrol->value.integer.value[0])
+ snd_soc_dapm_enable_pin(codec, pin);
+ else
+ snd_soc_dapm_disable_pin(codec, pin);
+
+ snd_soc_dapm_sync(codec);
+
+ mutex_unlock(&codec->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
+
+/**
* snd_soc_dapm_new_control - create new dapm control
* @codec: audio codec
* @widget: widget template
for (i = 0; i < num; i++) {
ret = snd_soc_dapm_new_control(codec, widget);
- if (ret < 0)
+ if (ret < 0) {
+ printk(KERN_ERR
+ "ASoC: Failed to create DAPM control %s: %d\n",
+ widget->name, ret);
return ret;
+ }
widget++;
}
return 0;
EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
/**
- * snd_soc_dapm_set_bias_level - set the bias level for the system
- * @socdev: audio device
- * @level: level to configure
- *
- * Configure the bias (power) levels for the SoC audio device.
- *
- * Returns 0 for success else error.
- */
-int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
- enum snd_soc_bias_level level)
-{
- struct snd_soc_codec *codec = socdev->codec;
- struct snd_soc_machine *machine = socdev->machine;
- int ret = 0;
-
- if (machine->set_bias_level)
- ret = machine->set_bias_level(machine, level);
- if (ret == 0 && codec->set_bias_level)
- ret = codec->set_bias_level(codec, level);
-
- return ret;
-}
-
-/**
* snd_soc_dapm_enable_pin - enable pin.
- * @snd_soc_codec: SoC codec
+ * @codec: SoC codec
* @pin: pin name
*
- * Enables input/output pin and it's parents or children widgets iff there is
+ * Enables input/output pin and its parents or children widgets iff there is
* a valid audio route and active audio stream.
* NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
* do any widget power switching.
*/
-int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_enable_pin(struct snd_soc_codec *codec, const char *pin)
{
return snd_soc_dapm_set_pin(codec, pin, 1);
}
* @codec: SoC codec
* @pin: pin name
*
- * Disables input/output pin and it's parents or children widgets.
+ * Disables input/output pin and its parents or children widgets.
* NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
* do any widget power switching.
*/
-int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_disable_pin(struct snd_soc_codec *codec, const char *pin)
{
return snd_soc_dapm_set_pin(codec, pin, 0);
}
* NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to
* do any widget power switching.
*/
-int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_nc_pin(struct snd_soc_codec *codec, const char *pin)
{
return snd_soc_dapm_set_pin(codec, pin, 0);
}
*
* Returns 1 for connected otherwise 0.
*/
-int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, char *pin)
+int snd_soc_dapm_get_pin_status(struct snd_soc_codec *codec, const char *pin)
{
struct snd_soc_dapm_widget *w;
*/
void snd_soc_dapm_free(struct snd_soc_device *socdev)
{
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
snd_soc_dapm_sys_remove(socdev->dev);
dapm_free_widgets(codec);
EXPORT_SYMBOL_GPL(snd_soc_dapm_free);
/* Module information */
-MODULE_AUTHOR("Liam Girdwood, liam.girdwood@wolfsonmicro.com, www.wolfsonmicro.com");
+MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC");
MODULE_LICENSE("GPL");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff