* 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
/* 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_mux, snd_soc_dapm_value_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
};
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_micbias, snd_soc_dapm_mux, snd_soc_dapm_value_mux,
+ 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 unsigned int 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);
case snd_soc_dapm_switch:
case snd_soc_dapm_mixer: {
int val;
- int reg = w->kcontrols[i].private_value & 0xff;
- int shift = (w->kcontrols[i].private_value >> 8) & 0x0f;
- int mask = (w->kcontrols[i].private_value >> 16) & 0xff;
- int invert = (w->kcontrols[i].private_value >> 24) & 0x01;
+ struct soc_mixer_control *mc = (struct soc_mixer_control *)
+ w->kcontrols[i].private_value;
+ unsigned int reg = mc->reg;
+ unsigned int shift = mc->shift;
+ int max = mc->max;
+ unsigned int mask = (1 << fls(max)) - 1;
+ unsigned int invert = mc->invert;
val = snd_soc_read(w->codec, reg);
val = (val >> shift) & mask;
struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value;
int val, item, bitmask;
- for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
+ for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
;
val = snd_soc_read(w->codec, e->reg);
item = (val >> e->shift_l) & (bitmask - 1);
p->connect = 0;
- for (i = 0; i < e->mask; i++) {
+ for (i = 0; i < e->max; i++) {
+ if (!(strcmp(p->name, e->texts[i])) && item == i)
+ p->connect = 1;
+ }
+ }
+ 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;
}
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
int i;
- for (i = 0; i < e->mask; i++) {
+ for (i = 0; i < e->max; i++) {
if (!(strcmp(control_name, e->texts[i]))) {
list_add(&path->list, &codec->dapm_paths);
list_add(&path->list_sink, &dest->sources);
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);
return 0;
if (widget->num_kcontrols && k) {
- int reg = k->private_value & 0xff;
- int shift = (k->private_value >> 8) & 0x0f;
- int mask = (k->private_value >> 16) & 0xff;
- int invert = (k->private_value >> 24) & 0x01;
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)k->private_value;
+ unsigned int reg = mc->reg;
+ unsigned int shift = mc->shift;
+ int max = mc->max;
+ unsigned int mask = (1 << fls(max)) - 1;
+ unsigned int invert = mc->invert;
if (power) {
int i;
/* power up has happended, increase volume to last level */
if (invert) {
- for (i = mask; i > widget->saved_value; i--)
+ for (i = max; i > widget->saved_value; i--)
snd_soc_update_bits(widget->codec, reg, mask, i);
} else {
for (i = 0; i < widget->saved_value; i++)
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 */
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);
+ name_len = 2 + strlen(w->name)
+ + strlen(w->kcontrols[i].name);
+ path->long_name = kmalloc(name_len, GFP_KERNEL);
if (path->long_name == NULL)
return -ENOMEM;
+ snprintf(path->long_name, name_len, "%s %s",
+ w->name, w->kcontrols[i].name);
+ 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);
return 0;
}
+EXPORT_SYMBOL_GPL(dapm_reg_event);
/*
* Scan each dapm widget for complete audio path.
continue;
}
- /* programmable gain/attenuation */
- if (w->id == snd_soc_dapm_pga) {
- int on;
- in = is_connected_input_ep(w);
- dapm_clear_walk(w->codec);
- out = is_connected_output_ep(w);
- dapm_clear_walk(w->codec);
- w->power = on = (out != 0 && in != 0) ? 1 : 0;
-
- if (!on)
- dapm_set_pga(w, on); /* lower volume to reduce pops */
- dapm_update_bits(w);
- if (on)
- dapm_set_pga(w, on); /* restore volume from zero */
-
- continue;
- }
-
/* pre and post event widgets */
if (w->id == snd_soc_dapm_pre) {
if (!w->event)
return ret;
}
+ /* Lower PGA volume to reduce pops */
+ if (w->id == snd_soc_dapm_pga && !power)
+ dapm_set_pga(w, power);
+
dapm_update_bits(w);
+ /* Raise PGA volume to reduce pops */
+ if (w->id == snd_soc_dapm_pga && power)
+ dapm_set_pga(w, power);
+
/* power up post event */
if (power && w->event &&
(w->event_flags & SND_SOC_DAPM_POST_PMU)) {
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:
/* test and update the power status of a mux widget */
static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
struct snd_kcontrol *kcontrol, int mask,
- int val, struct soc_enum* e)
+ int mux, int val, struct soc_enum *e)
{
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))
if (path->kcontrol != kcontrol)
continue;
- if (!path->name || ! e->texts[val])
+ if (!path->name || !e->texts[mux])
continue;
found = 1;
/* we now need to match the string in the enum to the path */
- if (!(strcmp(path->name, e->texts[val])))
+ if (!(strcmp(path->name, e->texts[mux])))
path->connect = 1; /* new connection */
else
path->connect = 0; /* old connection must be powered down */
static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL);
-/* pop/click delay times */
-static ssize_t dapm_pop_time_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", pop_time);
-}
-
-static ssize_t dapm_pop_time_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-
-{
- unsigned long val;
-
- if (strict_strtoul(buf, 10, &val) >= 0)
- pop_time = val;
- else
- printk(KERN_ERR "Unable to parse pop_time setting\n");
-
- return count;
-}
-
-static DEVICE_ATTR(dapm_pop_time, 0744, dapm_pop_time_show,
- dapm_pop_time_store);
-
int snd_soc_dapm_sys_add(struct device *dev)
{
- int ret = 0;
-
- if (dapm_status) {
- ret = device_create_file(dev, &dev_attr_dapm_widget);
-
- if (ret == 0)
- ret = device_create_file(dev, &dev_attr_dapm_pop_time);
- }
-
- return ret;
+ if (!dapm_status)
+ 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_pop_time);
device_remove_file(dev, &dev_attr_dapm_widget);
}
}
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)
}
/**
- * 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
dapm_new_mixer(codec, w);
break;
case snd_soc_dapm_mux:
+ case snd_soc_dapm_value_mux:
dapm_new_mux(codec, w);
break;
case snd_soc_dapm_adc:
/**
* 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.
*
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0x0f;
- int rshift = (kcontrol->private_value >> 12) & 0x0f;
- int max = (kcontrol->private_value >> 16) & 0xff;
- int invert = (kcontrol->private_value >> 24) & 0x01;
- int mask = (1 << fls(max)) - 1;
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ unsigned int reg = mc->reg;
+ unsigned int shift = mc->shift;
+ unsigned int rshift = mc->rshift;
+ int max = mc->max;
+ unsigned int invert = mc->invert;
+ unsigned int mask = (1 << fls(max)) - 1;
/* return the saved value if we are powered down */
if (widget->id == snd_soc_dapm_pga && !widget->power) {
/**
* 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.
*
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0x0f;
- int rshift = (kcontrol->private_value >> 12) & 0x0f;
- int max = (kcontrol->private_value >> 16) & 0xff;
- int mask = (1 << fls(max)) - 1;
- int invert = (kcontrol->private_value >> 24) & 0x01;
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ unsigned int reg = mc->reg;
+ unsigned int shift = mc->shift;
+ unsigned int rshift = mc->rshift;
+ int max = mc->max;
+ unsigned int mask = (1 << fls(max)) - 1;
+ unsigned int invert = mc->invert;
unsigned short val, val2, val_mask;
int ret;
/**
* 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.
*
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned short val, bitmask;
- for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
+ for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
;
val = snd_soc_read(widget->codec, e->reg);
ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
/**
* 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.
*
unsigned short mask, bitmask;
int ret = 0;
- for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
+ for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
;
- if (ucontrol->value.enumerated.item[0] > e->mask - 1)
+ if (ucontrol->value.enumerated.item[0] > e->max - 1)
return -EINVAL;
mux = ucontrol->value.enumerated.item[0];
val = mux << e->shift_l;
mask = (bitmask - 1) << e->shift_l;
if (e->shift_l != e->shift_r) {
- if (ucontrol->value.enumerated.item[1] > e->mask - 1)
+ if (ucontrol->value.enumerated.item[1] > e->max - 1)
return -EINVAL;
val |= ucontrol->value.enumerated.item[1] << e->shift_r;
mask |= (bitmask - 1) << e->shift_r;
mutex_lock(&widget->codec->mutex);
widget->value = val;
- dapm_mux_update_power(widget, kcontrol, mask, mux, e);
+ 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,
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_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;
enum snd_soc_bias_level level)
{
struct snd_soc_codec *codec = socdev->codec;
- struct snd_soc_machine *machine = socdev->machine;
+ struct snd_soc_card *card = socdev->card;
int ret = 0;
- if (machine->set_bias_level)
- ret = machine->set_bias_level(machine, level);
+ 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);
/**
* 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
EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin);
/**
+ * snd_soc_dapm_nc_pin - permanently disable pin.
+ * @codec: SoC codec
+ * @pin: pin name
+ *
+ * Marks the specified pin as being not connected, disabling it along
+ * any parent or child widgets. At present this is identical to
+ * snd_soc_dapm_disable_pin() but in future it will be extended to do
+ * additional things such as disabling controls which only affect
+ * paths through the pin.
+ *
+ * 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)
+{
+ return snd_soc_dapm_set_pin(codec, pin, 0);
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin);
+
+/**
* snd_soc_dapm_get_pin_status - get audio pin status
* @codec: audio codec
* @pin: audio signal pin endpoint (or start point)
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