diff options
Diffstat (limited to 'sound/soc/soc-dapm.c')
| -rw-r--r-- | sound/soc/soc-dapm.c | 3962 |
1 files changed, 3154 insertions, 808 deletions
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 820347c9ae4..cdc837ed144 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2,8 +2,7 @@ * 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 @@ -13,81 +12,174 @@ * 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. + * mic/headphone insertion events. * o Automatic Mic Bias support * o Jack insertion power event initiation - e.g. hp insertion will enable * sinks, dacs, etc - * o Delayed powerdown of audio susbsystem to reduce pops between a quick + * o Delayed power down of audio subsystem to reduce pops between a quick * device reopen. * - * Todo: - * o DAPM power change sequencing - allow for configurable per - * codec sequences. - * o Support for analogue bias optimisation. - * o Support for reduced codec oversampling rates. - * o Support for reduced codec bias currents. */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/init.h> +#include <linux/async.h> #include <linux/delay.h> #include <linux/pm.h> #include <linux/bitops.h> #include <linux/platform_device.h> #include <linux/jiffies.h> +#include <linux/debugfs.h> +#include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> +#include <linux/clk.h> +#include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> -#include <sound/soc-dapm.h> +#include <sound/soc.h> #include <sound/initval.h> -/* debug */ -#ifdef DEBUG -#define dump_dapm(codec, action) dbg_dump_dapm(codec, action) -#else -#define dump_dapm(codec, action) -#endif +#include <trace/events/asoc.h> + +#define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; + +static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, + struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, + const char *control, + int (*connected)(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink)); +static struct snd_soc_dapm_widget * +snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_widget *widget); /* 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] = 0, + [snd_soc_dapm_regulator_supply] = 1, + [snd_soc_dapm_clock_supply] = 1, + [snd_soc_dapm_supply] = 2, + [snd_soc_dapm_micbias] = 3, + [snd_soc_dapm_dai_link] = 2, + [snd_soc_dapm_dai_in] = 4, + [snd_soc_dapm_dai_out] = 4, + [snd_soc_dapm_aif_in] = 4, + [snd_soc_dapm_aif_out] = 4, + [snd_soc_dapm_mic] = 5, + [snd_soc_dapm_mux] = 6, + [snd_soc_dapm_dac] = 7, + [snd_soc_dapm_switch] = 8, + [snd_soc_dapm_mixer] = 8, + [snd_soc_dapm_mixer_named_ctl] = 8, + [snd_soc_dapm_pga] = 9, + [snd_soc_dapm_adc] = 10, + [snd_soc_dapm_out_drv] = 11, + [snd_soc_dapm_hp] = 11, + [snd_soc_dapm_spk] = 11, + [snd_soc_dapm_line] = 11, + [snd_soc_dapm_kcontrol] = 12, + [snd_soc_dapm_post] = 13, }; + 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_pre] = 0, + [snd_soc_dapm_kcontrol] = 1, + [snd_soc_dapm_adc] = 2, + [snd_soc_dapm_hp] = 3, + [snd_soc_dapm_spk] = 3, + [snd_soc_dapm_line] = 3, + [snd_soc_dapm_out_drv] = 3, + [snd_soc_dapm_pga] = 4, + [snd_soc_dapm_switch] = 5, + [snd_soc_dapm_mixer_named_ctl] = 5, + [snd_soc_dapm_mixer] = 5, + [snd_soc_dapm_dac] = 6, + [snd_soc_dapm_mic] = 7, + [snd_soc_dapm_micbias] = 8, + [snd_soc_dapm_mux] = 9, + [snd_soc_dapm_aif_in] = 10, + [snd_soc_dapm_aif_out] = 10, + [snd_soc_dapm_dai_in] = 10, + [snd_soc_dapm_dai_out] = 10, + [snd_soc_dapm_dai_link] = 11, + [snd_soc_dapm_supply] = 12, + [snd_soc_dapm_clock_supply] = 13, + [snd_soc_dapm_regulator_supply] = 13, + [snd_soc_dapm_post] = 14, }; -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 dapm_assert_locked(struct snd_soc_dapm_context *dapm) +{ + if (dapm->card && dapm->card->instantiated) + lockdep_assert_held(&dapm->card->dapm_mutex); +} -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(struct device *dev, u32 pop_time, const char *fmt, ...) { va_list args; + char *buf; + + if (!pop_time) + return; + + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (buf == NULL) + return; va_start(args, fmt); + vsnprintf(buf, PAGE_SIZE, fmt, args); + dev_info(dev, "%s", buf); + va_end(args); - if (pop_time) { - vprintk(fmt, args); - pop_wait(); + kfree(buf); +} + +static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) +{ + return !list_empty(&w->dirty); +} + +static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) +{ + dapm_assert_locked(w->dapm); + + if (!dapm_dirty_widget(w)) { + dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n", + w->name, reason); + list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); } +} - va_end(args); +void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm) +{ + struct snd_soc_card *card = dapm->card; + struct snd_soc_dapm_widget *w; + + mutex_lock(&card->dapm_mutex); + + list_for_each_entry(w, &card->widgets, list) { + switch (w->id) { + case snd_soc_dapm_input: + case snd_soc_dapm_output: + dapm_mark_dirty(w, "Rechecking inputs and outputs"); + break; + default: + break; + } + } + + mutex_unlock(&card->dapm_mutex); } +EXPORT_SYMBOL_GPL(dapm_mark_io_dirty); /* create a new dapm widget */ static inline struct snd_soc_dapm_widget *dapm_cnew_widget( @@ -96,82 +188,293 @@ static inline struct snd_soc_dapm_widget *dapm_cnew_widget( return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); } -/* 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) +struct dapm_kcontrol_data { + unsigned int value; + struct snd_soc_dapm_widget *widget; + struct list_head paths; + struct snd_soc_dapm_widget_list *wlist; +}; + +static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, + struct snd_kcontrol *kcontrol) { - switch (w->id) { + struct dapm_kcontrol_data *data; + struct soc_mixer_control *mc; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) { + dev_err(widget->dapm->dev, + "ASoC: can't allocate kcontrol data for %s\n", + widget->name); + return -ENOMEM; + } + + INIT_LIST_HEAD(&data->paths); + + switch (widget->id) { 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; - - val = snd_soc_read(w->codec, reg); - val = (val >> shift) & mask; + case snd_soc_dapm_mixer: + case snd_soc_dapm_mixer_named_ctl: + mc = (struct soc_mixer_control *)kcontrol->private_value; + + if (mc->autodisable) { + struct snd_soc_dapm_widget template; + + memset(&template, 0, sizeof(template)); + template.reg = mc->reg; + template.mask = (1 << fls(mc->max)) - 1; + template.shift = mc->shift; + if (mc->invert) + template.off_val = mc->max; + else + template.off_val = 0; + template.on_val = template.off_val; + template.id = snd_soc_dapm_kcontrol; + template.name = kcontrol->id.name; + + data->value = template.on_val; + + data->widget = snd_soc_dapm_new_control(widget->dapm, + &template); + if (!data->widget) { + kfree(data); + return -ENOMEM; + } + } + break; + default: + break; + } - if ((invert && !val) || (!invert && val)) - p->connect = 1; - else - p->connect = 0; + kcontrol->private_data = data; + + return 0; +} + +static void dapm_kcontrol_free(struct snd_kcontrol *kctl) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); + kfree(data->wlist); + kfree(data); +} + +static struct snd_soc_dapm_widget_list *dapm_kcontrol_get_wlist( + const struct snd_kcontrol *kcontrol) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); + + return data->wlist; +} + +static int dapm_kcontrol_add_widget(struct snd_kcontrol *kcontrol, + struct snd_soc_dapm_widget *widget) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); + struct snd_soc_dapm_widget_list *new_wlist; + unsigned int n; + + if (data->wlist) + n = data->wlist->num_widgets + 1; + else + n = 1; + + new_wlist = krealloc(data->wlist, + sizeof(*new_wlist) + sizeof(widget) * n, GFP_KERNEL); + if (!new_wlist) + return -ENOMEM; + + new_wlist->widgets[n - 1] = widget; + new_wlist->num_widgets = n; + + data->wlist = new_wlist; + + return 0; +} + +static void dapm_kcontrol_add_path(const struct snd_kcontrol *kcontrol, + struct snd_soc_dapm_path *path) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); + + list_add_tail(&path->list_kcontrol, &data->paths); + + if (data->widget) { + snd_soc_dapm_add_path(data->widget->dapm, data->widget, + path->source, NULL, NULL); } - break; - case snd_soc_dapm_mux: { - struct soc_enum *e = (struct soc_enum *)w->kcontrols[i].private_value; - int val, item, bitmask; +} - for (bitmask = 1; bitmask < e->mask; bitmask <<= 1) - ; - val = snd_soc_read(w->codec, e->reg); - item = (val >> e->shift_l) & (bitmask - 1); +static bool dapm_kcontrol_is_powered(const struct snd_kcontrol *kcontrol) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); - p->connect = 0; - for (i = 0; i < e->mask; i++) { - if (!(strcmp(p->name, e->texts[i])) && item == i) - p->connect = 1; - } + if (!data->widget) + return true; + + return data->widget->power; +} + +static struct list_head *dapm_kcontrol_get_path_list( + const struct snd_kcontrol *kcontrol) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); + + return &data->paths; +} + +#define dapm_kcontrol_for_each_path(path, kcontrol) \ + list_for_each_entry(path, dapm_kcontrol_get_path_list(kcontrol), \ + list_kcontrol) + +static unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); + + return data->value; +} + +static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol, + unsigned int value) +{ + struct dapm_kcontrol_data *data = snd_kcontrol_chip(kcontrol); + + if (data->value == value) + return false; + + if (data->widget) + data->widget->on_val = value; + + data->value = value; + + return true; +} + +/** + * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol + * @kcontrol: The kcontrol + */ +struct snd_soc_codec *snd_soc_dapm_kcontrol_codec(struct snd_kcontrol *kcontrol) +{ + return dapm_kcontrol_get_wlist(kcontrol)->widgets[0]->codec; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_codec); + +static void dapm_reset(struct snd_soc_card *card) +{ + struct snd_soc_dapm_widget *w; + + lockdep_assert_held(&card->dapm_mutex); + + memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); + + list_for_each_entry(w, &card->widgets, list) { + w->new_power = w->power; + w->power_checked = false; + w->inputs = -1; + w->outputs = -1; } - break; - /* does not effect routing - always connected */ - case snd_soc_dapm_pga: - case snd_soc_dapm_output: - case snd_soc_dapm_adc: - case snd_soc_dapm_input: - case snd_soc_dapm_dac: - case snd_soc_dapm_micbias: - case snd_soc_dapm_vmid: - p->connect = 1; - break; - /* does effect routing - dynamically connected */ - case snd_soc_dapm_hp: - case snd_soc_dapm_mic: - case snd_soc_dapm_spk: - case snd_soc_dapm_line: - case snd_soc_dapm_pre: - case snd_soc_dapm_post: - p->connect = 0; - break; +} + +static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg, + unsigned int *value) +{ + if (!w->dapm->component) + return -EIO; + return snd_soc_component_read(w->dapm->component, reg, value); +} + +static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, + int reg, unsigned int mask, unsigned int value) +{ + if (!w->dapm->component) + return -EIO; + return snd_soc_component_update_bits_async(w->dapm->component, reg, + mask, value); +} + +static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm) +{ + if (dapm->component) + snd_soc_component_async_complete(dapm->component); +} + +/** + * snd_soc_dapm_set_bias_level - set the bias level for the system + * @dapm: DAPM context + * @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_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct snd_soc_card *card = dapm->card; + int ret = 0; + + trace_snd_soc_bias_level_start(card, level); + + if (card && card->set_bias_level) + ret = card->set_bias_level(card, dapm, level); + if (ret != 0) + goto out; + + if (dapm->codec) { + if (dapm->codec->driver->set_bias_level) + ret = dapm->codec->driver->set_bias_level(dapm->codec, + level); + else + dapm->bias_level = level; + } else if (!card || dapm != &card->dapm) { + dapm->bias_level = level; } + + if (ret != 0) + goto out; + + if (card && card->set_bias_level_post) + ret = card->set_bias_level_post(card, dapm, level); +out: + trace_snd_soc_bias_level_done(card, level); + + return ret; } -/* connect mux widget to it's interconnecting audio paths */ -static int dapm_connect_mux(struct snd_soc_codec *codec, +/* connect mux widget to its interconnecting audio paths */ +static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, struct snd_soc_dapm_path *path, const char *control_name, const struct snd_kcontrol_new *kcontrol) { struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; + unsigned int val, item; int i; - for (i = 0; i < e->mask; i++) { + if (e->reg != SND_SOC_NOPM) { + soc_widget_read(dest, e->reg, &val); + val = (val >> e->shift_l) & e->mask; + item = snd_soc_enum_val_to_item(e, val); + } else { + /* since a virtual mux has no backing registers to + * decide which path to connect, it will try to match + * with the first enumeration. This is to ensure + * that the default mux choice (the first) will be + * correctly powered up during initialization. + */ + item = 0; + } + + for (i = 0; i < e->items; i++) { if (!(strcmp(control_name, e->texts[i]))) { - list_add(&path->list, &codec->dapm_paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &dest->sources); list_add(&path->list_source, &src->sinks); path->name = (char*)e->texts[i]; - dapm_set_path_status(dest, path, 0); + if (i == item) + path->connect = 1; + else + path->connect = 0; return 0; } } @@ -179,8 +482,32 @@ static int dapm_connect_mux(struct snd_soc_codec *codec, return -ENODEV; } -/* connect mixer widget to it's interconnecting audio paths */ -static int dapm_connect_mixer(struct snd_soc_codec *codec, +/* set up initial codec paths */ +static void dapm_set_mixer_path_status(struct snd_soc_dapm_widget *w, + struct snd_soc_dapm_path *p, int i) +{ + struct soc_mixer_control *mc = (struct soc_mixer_control *) + w->kcontrol_news[i].private_value; + unsigned int reg = mc->reg; + unsigned int shift = mc->shift; + unsigned int max = mc->max; + unsigned int mask = (1 << fls(max)) - 1; + unsigned int invert = mc->invert; + unsigned int val; + + if (reg != SND_SOC_NOPM) { + soc_widget_read(w, reg, &val); + val = (val >> shift) & mask; + if (invert) + val = max - val; + p->connect = !!val; + } else { + p->connect = 0; + } +} + +/* connect mixer widget to its interconnecting audio paths */ +static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, struct snd_soc_dapm_path *path, const char *control_name) { @@ -188,227 +515,400 @@ static int dapm_connect_mixer(struct snd_soc_codec *codec, /* search for mixer kcontrol */ for (i = 0; i < dest->num_kcontrols; i++) { - if (!strcmp(control_name, dest->kcontrols[i].name)) { - list_add(&path->list, &codec->dapm_paths); + if (!strcmp(control_name, dest->kcontrol_news[i].name)) { + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &dest->sources); list_add(&path->list_source, &src->sinks); - path->name = dest->kcontrols[i].name; - dapm_set_path_status(dest, path, i); + path->name = dest->kcontrol_news[i].name; + dapm_set_mixer_path_status(dest, path, i); return 0; } } return -ENODEV; } -/* update dapm codec register bits */ -static int dapm_update_bits(struct snd_soc_dapm_widget *widget) +static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, + struct snd_soc_dapm_widget *kcontrolw, + const struct snd_kcontrol_new *kcontrol_new, + struct snd_kcontrol **kcontrol) { - int change, power; - unsigned short old, new; - struct snd_soc_codec *codec = widget->codec; - - /* check for valid widgets */ - if (widget->reg < 0 || widget->id == snd_soc_dapm_input || - widget->id == snd_soc_dapm_output || - widget->id == snd_soc_dapm_hp || - widget->id == snd_soc_dapm_mic || - widget->id == snd_soc_dapm_line || - widget->id == snd_soc_dapm_spk) - return 0; - - power = widget->power; - if (widget->invert) - power = (power ? 0:1); + struct snd_soc_dapm_widget *w; + int i; - old = snd_soc_read(codec, widget->reg); - new = (old & ~(0x1 << widget->shift)) | (power << widget->shift); + *kcontrol = NULL; - change = old != new; - if (change) { - pop_dbg("pop test %s : %s in %d ms\n", widget->name, - widget->power ? "on" : "off", pop_time); - snd_soc_write(codec, widget->reg, new); - pop_wait(); + list_for_each_entry(w, &dapm->card->widgets, list) { + if (w == kcontrolw || w->dapm != kcontrolw->dapm) + continue; + for (i = 0; i < w->num_kcontrols; i++) { + if (&w->kcontrol_news[i] == kcontrol_new) { + if (w->kcontrols) + *kcontrol = w->kcontrols[i]; + return 1; + } + } } - pr_debug("reg %x old %x new %x change %d\n", widget->reg, - old, new, change); - return change; + + return 0; } -/* ramps the volume up or down to minimise pops before or after a - * DAPM power event */ -static int dapm_set_pga(struct snd_soc_dapm_widget *widget, int power) +/* + * Determine if a kcontrol is shared. If it is, look it up. If it isn't, + * create it. Either way, add the widget into the control's widget list + */ +static int dapm_create_or_share_mixmux_kcontrol(struct snd_soc_dapm_widget *w, + int kci) { - const struct snd_kcontrol_new *k = widget->kcontrols; + struct snd_soc_dapm_context *dapm = w->dapm; + struct snd_card *card = dapm->card->snd_card; + const char *prefix; + size_t prefix_len; + int shared; + struct snd_kcontrol *kcontrol; + bool wname_in_long_name, kcname_in_long_name; + char *long_name; + const char *name; + int ret; - if (widget->muted && !power) - return 0; - if (!widget->muted && power) - return 0; + if (dapm->codec) + prefix = dapm->codec->name_prefix; + else + prefix = NULL; - 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; - - if (power) { - int i; - /* power up has happended, increase volume to last level */ - if (invert) { - for (i = mask; i > widget->saved_value; i--) - snd_soc_update_bits(widget->codec, reg, mask, i); - } else { - for (i = 0; i < widget->saved_value; i++) - snd_soc_update_bits(widget->codec, reg, mask, i); - } - widget->muted = 0; + if (prefix) + prefix_len = strlen(prefix) + 1; + else + prefix_len = 0; + + shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[kci], + &kcontrol); + + if (!kcontrol) { + if (shared) { + wname_in_long_name = false; + kcname_in_long_name = true; } else { - /* power down is about to occur, decrease volume to mute */ - int val = snd_soc_read(widget->codec, reg); - int i = widget->saved_value = (val >> shift) & mask; - if (invert) { - for (; i < mask; i++) - snd_soc_update_bits(widget->codec, reg, mask, i); - } else { - for (; i > 0; i--) - snd_soc_update_bits(widget->codec, reg, mask, i); + switch (w->id) { + case snd_soc_dapm_switch: + case snd_soc_dapm_mixer: + wname_in_long_name = true; + kcname_in_long_name = true; + break; + case snd_soc_dapm_mixer_named_ctl: + wname_in_long_name = false; + kcname_in_long_name = true; + break; + case snd_soc_dapm_mux: + wname_in_long_name = true; + kcname_in_long_name = false; + break; + default: + return -EINVAL; } - widget->muted = 1; + } + + if (wname_in_long_name && kcname_in_long_name) { + /* + * The control will get a prefix from the control + * creation process but we're also using the same + * prefix for widgets so cut the prefix off the + * front of the widget name. + */ + long_name = kasprintf(GFP_KERNEL, "%s %s", + w->name + prefix_len, + w->kcontrol_news[kci].name); + if (long_name == NULL) + return -ENOMEM; + + name = long_name; + } else if (wname_in_long_name) { + long_name = NULL; + name = w->name + prefix_len; + } else { + long_name = NULL; + name = w->kcontrol_news[kci].name; + } + + kcontrol = snd_soc_cnew(&w->kcontrol_news[kci], NULL, name, + prefix); + kfree(long_name); + if (!kcontrol) + return -ENOMEM; + kcontrol->private_free = dapm_kcontrol_free; + + ret = dapm_kcontrol_data_alloc(w, kcontrol); + if (ret) { + snd_ctl_free_one(kcontrol); + return ret; + } + + ret = snd_ctl_add(card, kcontrol); + if (ret < 0) { + dev_err(dapm->dev, + "ASoC: failed to add widget %s dapm kcontrol %s: %d\n", + w->name, name, ret); + return ret; } } + + ret = dapm_kcontrol_add_widget(kcontrol, w); + if (ret) + return ret; + + w->kcontrols[kci] = kcontrol; + return 0; } /* create new dapm mixer control */ -static int dapm_new_mixer(struct snd_soc_codec *codec, - struct snd_soc_dapm_widget *w) +static int dapm_new_mixer(struct snd_soc_dapm_widget *w) { - int i, ret = 0; - char name[32]; + int i, ret; struct snd_soc_dapm_path *path; /* add kcontrol */ for (i = 0; i < w->num_kcontrols; i++) { - /* match name */ list_for_each_entry(path, &w->sources, list_sink) { - /* mixer/mux paths name must match control name */ - if (path->name != (char*)w->kcontrols[i].name) + if (path->name != (char *)w->kcontrol_news[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); - if (path->long_name == NULL) - return -ENOMEM; + if (w->kcontrols[i]) { + dapm_kcontrol_add_path(w->kcontrols[i], path); + continue; + } - 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); - kfree(path->long_name); - path->long_name = NULL; + ret = dapm_create_or_share_mixmux_kcontrol(w, i); + if (ret < 0) return ret; - } + + dapm_kcontrol_add_path(w->kcontrols[i], path); } } - return ret; + + return 0; } /* create new dapm mux control */ -static int dapm_new_mux(struct snd_soc_codec *codec, - struct snd_soc_dapm_widget *w) +static int dapm_new_mux(struct snd_soc_dapm_widget *w) { - struct snd_soc_dapm_path *path = NULL; - struct snd_kcontrol *kcontrol; - int ret = 0; + struct snd_soc_dapm_context *dapm = w->dapm; + struct snd_soc_dapm_path *path; + int ret; + + if (w->num_kcontrols != 1) { + dev_err(dapm->dev, + "ASoC: mux %s has incorrect number of controls\n", + w->name); + return -EINVAL; + } - if (!w->num_kcontrols) { - printk(KERN_ERR "asoc: mux %s has no controls\n", w->name); + if (list_empty(&w->sources)) { + dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name); return -EINVAL; } - kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); - ret = snd_ctl_add(codec->card, kcontrol); + ret = dapm_create_or_share_mixmux_kcontrol(w, 0); if (ret < 0) - goto err; + return ret; list_for_each_entry(path, &w->sources, list_sink) - path->kcontrol = kcontrol; - - return ret; + dapm_kcontrol_add_path(w->kcontrols[0], path); -err: - printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name); - return ret; + return 0; } /* create new dapm volume control */ -static int dapm_new_pga(struct snd_soc_codec *codec, - struct snd_soc_dapm_widget *w) +static int dapm_new_pga(struct snd_soc_dapm_widget *w) { - struct snd_kcontrol *kcontrol; - int ret = 0; + if (w->num_kcontrols) + dev_err(w->dapm->dev, + "ASoC: PGA controls not supported: '%s'\n", w->name); - if (!w->num_kcontrols) - return -EINVAL; + return 0; +} - kcontrol = snd_soc_cnew(&w->kcontrols[0], w, w->name); - ret = snd_ctl_add(codec->card, kcontrol); - if (ret < 0) { - printk(KERN_ERR "asoc: failed to add kcontrol %s\n", w->name); - return ret; - } +/* reset 'walked' bit for each dapm path */ +static void dapm_clear_walk_output(struct snd_soc_dapm_context *dapm, + struct list_head *sink) +{ + struct snd_soc_dapm_path *p; - return ret; + list_for_each_entry(p, sink, list_source) { + if (p->walked) { + p->walked = 0; + dapm_clear_walk_output(dapm, &p->sink->sinks); + } + } } -/* reset 'walked' bit for each dapm path */ -static inline void dapm_clear_walk(struct snd_soc_codec *codec) +static void dapm_clear_walk_input(struct snd_soc_dapm_context *dapm, + struct list_head *source) { struct snd_soc_dapm_path *p; - list_for_each_entry(p, &codec->dapm_paths, list) - p->walked = 0; + list_for_each_entry(p, source, list_sink) { + if (p->walked) { + p->walked = 0; + dapm_clear_walk_input(dapm, &p->source->sources); + } + } +} + + +/* We implement power down on suspend by checking the power state of + * the ALSA card - when we are suspending the ALSA state for the card + * is set to D3. + */ +static int snd_soc_dapm_suspend_check(struct snd_soc_dapm_widget *widget) +{ + int level = snd_power_get_state(widget->dapm->card->snd_card); + + switch (level) { + case SNDRV_CTL_POWER_D3hot: + case SNDRV_CTL_POWER_D3cold: + if (widget->ignore_suspend) + dev_dbg(widget->dapm->dev, "ASoC: %s ignoring suspend\n", + widget->name); + return widget->ignore_suspend; + default: + return 1; + } +} + +/* add widget to list if it's not already in the list */ +static int dapm_list_add_widget(struct snd_soc_dapm_widget_list **list, + struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_widget_list *wlist; + int wlistsize, wlistentries, i; + + if (*list == NULL) + return -EINVAL; + + wlist = *list; + + /* is this widget already in the list */ + for (i = 0; i < wlist->num_widgets; i++) { + if (wlist->widgets[i] == w) + return 0; + } + + /* allocate some new space */ + wlistentries = wlist->num_widgets + 1; + wlistsize = sizeof(struct snd_soc_dapm_widget_list) + + wlistentries * sizeof(struct snd_soc_dapm_widget *); + *list = krealloc(wlist, wlistsize, GFP_KERNEL); + if (*list == NULL) { + dev_err(w->dapm->dev, "ASoC: can't allocate widget list for %s\n", + w->name); + return -ENOMEM; + } + wlist = *list; + + /* insert the widget */ + dev_dbg(w->dapm->dev, "ASoC: added %s in widget list pos %d\n", + w->name, wlist->num_widgets); + + wlist->widgets[wlist->num_widgets] = w; + wlist->num_widgets++; + return 1; } /* * Recursively check for a completed path to an active or physically connected * output widget. Returns number of complete paths. */ -static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) +static int is_connected_output_ep(struct snd_soc_dapm_widget *widget, + struct snd_soc_dapm_widget_list **list) { struct snd_soc_dapm_path *path; int con = 0; - if (widget->id == snd_soc_dapm_adc && widget->active) - return 1; + if (widget->outputs >= 0) + return widget->outputs; + + DAPM_UPDATE_STAT(widget, path_checks); + + switch (widget->id) { + case snd_soc_dapm_supply: + case snd_soc_dapm_regulator_supply: + case snd_soc_dapm_clock_supply: + case snd_soc_dapm_kcontrol: + return 0; + default: + break; + } + + switch (widget->id) { + case snd_soc_dapm_adc: + case snd_soc_dapm_aif_out: + case snd_soc_dapm_dai_out: + if (widget->active) { + widget->outputs = snd_soc_dapm_suspend_check(widget); + return widget->outputs; + } + default: + break; + } if (widget->connected) { /* connected pin ? */ - if (widget->id == snd_soc_dapm_output && !widget->ext) - return 1; + if (widget->id == snd_soc_dapm_output && !widget->ext) { + widget->outputs = snd_soc_dapm_suspend_check(widget); + return widget->outputs; + } /* connected jack or spk ? */ - if (widget->id == snd_soc_dapm_hp || widget->id == snd_soc_dapm_spk || - widget->id == snd_soc_dapm_line) - return 1; + if (widget->id == snd_soc_dapm_hp || + widget->id == snd_soc_dapm_spk || + (widget->id == snd_soc_dapm_line && + !list_empty(&widget->sources))) { + widget->outputs = snd_soc_dapm_suspend_check(widget); + return widget->outputs; + } } list_for_each_entry(path, &widget->sinks, list_source) { + DAPM_UPDATE_STAT(widget, neighbour_checks); + + if (path->weak) + continue; + + if (path->walking) + return 1; + if (path->walked) continue; + trace_snd_soc_dapm_output_path(widget, path); + if (path->sink && path->connect) { path->walked = 1; - con += is_connected_output_ep(path->sink); + path->walking = 1; + + /* do we need to add this widget to the list ? */ + if (list) { + int err; + err = dapm_list_add_widget(list, path->sink); + if (err < 0) { + dev_err(widget->dapm->dev, + "ASoC: could not add widget %s\n", + widget->name); + path->walking = 0; + return con; + } + } + + con += is_connected_output_ep(path->sink, list); + + path->walking = 0; } } + widget->outputs = con; + return con; } @@ -416,358 +916,1165 @@ static int is_connected_output_ep(struct snd_soc_dapm_widget *widget) * Recursively check for a completed path to an active or physically connected * input widget. Returns number of complete paths. */ -static int is_connected_input_ep(struct snd_soc_dapm_widget *widget) +static int is_connected_input_ep(struct snd_soc_dapm_widget *widget, + struct snd_soc_dapm_widget_list **list) { struct snd_soc_dapm_path *path; int con = 0; + if (widget->inputs >= 0) + return widget->inputs; + + DAPM_UPDATE_STAT(widget, path_checks); + + switch (widget->id) { + case snd_soc_dapm_supply: + case snd_soc_dapm_regulator_supply: + case snd_soc_dapm_clock_supply: + case snd_soc_dapm_kcontrol: + return 0; + default: + break; + } + /* active stream ? */ - if (widget->id == snd_soc_dapm_dac && widget->active) - return 1; + switch (widget->id) { + case snd_soc_dapm_dac: + case snd_soc_dapm_aif_in: + case snd_soc_dapm_dai_in: + if (widget->active) { + widget->inputs = snd_soc_dapm_suspend_check(widget); + return widget->inputs; + } + default: + break; + } if (widget->connected) { /* connected pin ? */ - if (widget->id == snd_soc_dapm_input && !widget->ext) - return 1; + if (widget->id == snd_soc_dapm_input && !widget->ext) { + widget->inputs = snd_soc_dapm_suspend_check(widget); + return widget->inputs; + } /* connected VMID/Bias for lower pops */ - if (widget->id == snd_soc_dapm_vmid) - return 1; + if (widget->id == snd_soc_dapm_vmid) { + widget->inputs = snd_soc_dapm_suspend_check(widget); + return widget->inputs; + } /* connected jack ? */ - if (widget->id == snd_soc_dapm_mic || widget->id == snd_soc_dapm_line) - return 1; + if (widget->id == snd_soc_dapm_mic || + (widget->id == snd_soc_dapm_line && + !list_empty(&widget->sinks))) { + widget->inputs = snd_soc_dapm_suspend_check(widget); + return widget->inputs; + } + + /* signal generator */ + if (widget->id == snd_soc_dapm_siggen) { + widget->inputs = snd_soc_dapm_suspend_check(widget); + return widget->inputs; + } } list_for_each_entry(path, &widget->sources, list_sink) { + DAPM_UPDATE_STAT(widget, neighbour_checks); + + if (path->weak) + continue; + + if (path->walking) + return 1; + if (path->walked) continue; + trace_snd_soc_dapm_input_path(widget, path); + if (path->source && path->connect) { path->walked = 1; - con += is_connected_input_ep(path->source); + path->walking = 1; + + /* do we need to add this widget to the list ? */ + if (list) { + int err; + err = dapm_list_add_widget(list, path->source); + if (err < 0) { + dev_err(widget->dapm->dev, + "ASoC: could not add widget %s\n", + widget->name); + path->walking = 0; + return con; + } + } + + con += is_connected_input_ep(path->source, list); + + path->walking = 0; } } + widget->inputs = con; + return con; } +/** + * snd_soc_dapm_get_connected_widgets - query audio path and it's widgets. + * @dai: the soc DAI. + * @stream: stream direction. + * @list: list of active widgets for this stream. + * + * Queries DAPM graph as to whether an valid audio stream path exists for + * the initial stream specified by name. This takes into account + * current mixer and mux kcontrol settings. Creates list of valid widgets. + * + * Returns the number of valid paths or negative error. + */ +int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream, + struct snd_soc_dapm_widget_list **list) +{ + struct snd_soc_card *card = dai->card; + int paths; + + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + dapm_reset(card); + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + paths = is_connected_output_ep(dai->playback_widget, list); + dapm_clear_walk_output(&card->dapm, + &dai->playback_widget->sinks); + } else { + paths = is_connected_input_ep(dai->capture_widget, list); + dapm_clear_walk_input(&card->dapm, + &dai->capture_widget->sources); + } + + trace_snd_soc_dapm_connected(paths, stream); + mutex_unlock(&card->dapm_mutex); + + return paths; +} + /* - * Handler for generic register modifier widget. + * Handler for regulator supply widget. */ -int dapm_reg_event(struct snd_soc_dapm_widget *w, +int dapm_regulator_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { - unsigned int val; + int ret; - if (SND_SOC_DAPM_EVENT_ON(event)) - val = w->on_val; - else - val = w->off_val; + soc_dapm_async_complete(w->dapm); - snd_soc_update_bits(w->codec, -(w->reg + 1), - w->mask << w->shift, val << w->shift); + if (SND_SOC_DAPM_EVENT_ON(event)) { + if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { + ret = regulator_allow_bypass(w->regulator, false); + if (ret != 0) + dev_warn(w->dapm->dev, + "ASoC: Failed to unbypass %s: %d\n", + w->name, ret); + } - return 0; + return regulator_enable(w->regulator); + } else { + if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { + ret = regulator_allow_bypass(w->regulator, true); + if (ret != 0) + dev_warn(w->dapm->dev, + "ASoC: Failed to bypass %s: %d\n", + w->name, ret); + } + + return regulator_disable_deferred(w->regulator, w->shift); + } } +EXPORT_SYMBOL_GPL(dapm_regulator_event); /* - * Scan each dapm widget for complete audio path. - * A complete path is a route that has valid endpoints i.e.:- - * - * o DAC to output pin. - * o Input Pin to ADC. - * o Input pin to Output pin (bypass, sidetone) - * o DAC to ADC (loopback). + * Handler for clock supply widget. + */ +int dapm_clock_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + if (!w->clk) + return -EIO; + + soc_dapm_async_complete(w->dapm); + +#ifdef CONFIG_HAVE_CLK + if (SND_SOC_DAPM_EVENT_ON(event)) { + return clk_prepare_enable(w->clk); + } else { + clk_disable_unprepare(w->clk); + return 0; + } +#endif + return 0; +} +EXPORT_SYMBOL_GPL(dapm_clock_event); + +static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) +{ + if (w->power_checked) + return w->new_power; + + if (w->force) + w->new_power = 1; + else + w->new_power = w->power_check(w); + + w->power_checked = true; + + return w->new_power; +} + +/* Generic check to see if a widget should be powered. */ -static int dapm_power_widgets(struct snd_soc_codec *codec, int event) +static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) +{ + int in, out; + + DAPM_UPDATE_STAT(w, power_checks); + + in = is_connected_input_ep(w, NULL); + dapm_clear_walk_input(w->dapm, &w->sources); + out = is_connected_output_ep(w, NULL); + dapm_clear_walk_output(w->dapm, &w->sinks); + 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; + + DAPM_UPDATE_STAT(w, power_checks); + + if (w->active) { + in = is_connected_input_ep(w, NULL); + dapm_clear_walk_input(w->dapm, &w->sources); + 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; + + DAPM_UPDATE_STAT(w, power_checks); + + if (w->active) { + out = is_connected_output_ep(w, NULL); + dapm_clear_walk_output(w->dapm, &w->sinks); + 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; + + DAPM_UPDATE_STAT(w, power_checks); + + /* Check if one of our outputs is connected */ + list_for_each_entry(path, &w->sinks, list_source) { + DAPM_UPDATE_STAT(w, neighbour_checks); + + if (path->weak) + continue; + + if (path->connected && + !path->connected(path->source, path->sink)) + continue; + + if (!path->sink) + continue; + + if (dapm_widget_power_check(path->sink)) + return 1; + } + + return 0; +} + +static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) +{ + return 1; +} + +static int dapm_seq_compare(struct snd_soc_dapm_widget *a, + struct snd_soc_dapm_widget *b, + bool power_up) +{ + int *sort; + + if (power_up) + sort = dapm_up_seq; + else + sort = dapm_down_seq; + + if (sort[a->id] != sort[b->id]) + return sort[a->id] - sort[b->id]; + if (a->subseq != b->subseq) { + if (power_up) + return a->subseq - b->subseq; + else + return b->subseq - a->subseq; + } + if (a->reg != b->reg) + return a->reg - b->reg; + if (a->dapm != b->dapm) + return (unsigned long)a->dapm - (unsigned long)b->dapm; + + return 0; +} + +/* Insert a widget in order into a DAPM power sequence. */ +static void dapm_seq_insert(struct snd_soc_dapm_widget *new_widget, + struct list_head *list, + bool power_up) { 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; + list_for_each_entry(w, list, power_list) + if (dapm_seq_compare(new_widget, w, power_up) < 0) { + list_add_tail(&new_widget->power_list, &w->power_list); + return; + } + + list_add_tail(&new_widget->power_list, list); +} + +static void dapm_seq_check_event(struct snd_soc_card *card, + struct snd_soc_dapm_widget *w, int event) +{ + const char *ev_name; + int power, ret; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + ev_name = "PRE_PMU"; + power = 1; + break; + case SND_SOC_DAPM_POST_PMU: + ev_name = "POST_PMU"; + power = 1; + break; + case SND_SOC_DAPM_PRE_PMD: + ev_name = "PRE_PMD"; + power = 0; + break; + case SND_SOC_DAPM_POST_PMD: + ev_name = "POST_PMD"; + power = 0; + break; + case SND_SOC_DAPM_WILL_PMU: + ev_name = "WILL_PMU"; + power = 1; + break; + case SND_SOC_DAPM_WILL_PMD: + ev_name = "WILL_PMD"; + power = 0; + break; + default: + WARN(1, "Unknown event %d\n", event); + return; } - for(i = 0; i < c; i++) { - list_for_each_entry(w, &codec->dapm_widgets, list) { + if (w->new_power != power) + return; - /* is widget in stream order */ - if (seq && seq[i] && w->id != seq[i]) - continue; + if (w->event && (w->event_flags & event)) { + pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n", + w->name, ev_name); + soc_dapm_async_complete(w->dapm); + trace_snd_soc_dapm_widget_event_start(w, event); + ret = w->event(w, NULL, event); + trace_snd_soc_dapm_widget_event_done(w, event); + if (ret < 0) + dev_err(w->dapm->dev, "ASoC: %s: %s event failed: %d\n", + ev_name, w->name, ret); + } +} - /* vmid - no action */ - if (w->id == snd_soc_dapm_vmid) - continue; +/* Apply the coalesced changes from a DAPM sequence */ +static void dapm_seq_run_coalesced(struct snd_soc_card *card, + struct list_head *pending) +{ + struct snd_soc_dapm_widget *w; + int reg; + unsigned int value = 0; + unsigned int mask = 0; - /* 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; - } + reg = list_first_entry(pending, struct snd_soc_dapm_widget, + power_list)->reg; - /* 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); - continue; - } + list_for_each_entry(w, pending, power_list) { + WARN_ON(reg != w->reg); + w->power = w->new_power; - /* 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; - } + mask |= w->mask << w->shift; + if (w->power) + value |= w->on_val << w->shift; + else + value |= w->off_val << w->shift; - /* 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; + pop_dbg(w->dapm->dev, card->pop_time, + "pop test : Queue %s: reg=0x%x, 0x%x/0x%x\n", + w->name, reg, value, mask); - if (!power_change) - continue; + /* Check for events */ + dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMU); + dapm_seq_check_event(card, w, SND_SOC_DAPM_PRE_PMD); + } - /* 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 (reg >= 0) { + /* Any widget will do, they should all be updating the + * same register. + */ + w = list_first_entry(pending, struct snd_soc_dapm_widget, + power_list); + + pop_dbg(w->dapm->dev, card->pop_time, + "pop test : Applying 0x%x/0x%x to %x in %dms\n", + value, mask, reg, card->pop_time); + pop_wait(card->pop_time); + soc_widget_update_bits(w, reg, mask, value); + } + + list_for_each_entry(w, pending, power_list) { + dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMU); + dapm_seq_check_event(card, w, SND_SOC_DAPM_POST_PMD); + } +} - /* 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; +/* Apply a DAPM power sequence. + * + * We walk over a pre-sorted list of widgets to apply power to. In + * order to minimise the number of writes to the device required + * multiple widgets will be updated in a single write where possible. + * Currently anything that requires more than a single write is not + * handled. + */ +static void dapm_seq_run(struct snd_soc_card *card, + struct list_head *list, int event, bool power_up) +{ + struct snd_soc_dapm_widget *w, *n; + struct snd_soc_dapm_context *d; + LIST_HEAD(pending); + int cur_sort = -1; + int cur_subseq = -1; + int cur_reg = SND_SOC_NOPM; + struct snd_soc_dapm_context *cur_dapm = NULL; + int ret, i; + int *sort; + + if (power_up) + sort = dapm_up_seq; + else + sort = dapm_down_seq; + + list_for_each_entry_safe(w, n, list, power_list) { + ret = 0; + + /* Do we need to apply any queued changes? */ + if (sort[w->id] != cur_sort || w->reg != cur_reg || + w->dapm != cur_dapm || w->subseq != cur_subseq) { + if (!list_empty(&pending)) + dapm_seq_run_coalesced(card, &pending); + + if (cur_dapm && cur_dapm->seq_notifier) { + for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) + if (sort[i] == cur_sort) + cur_dapm->seq_notifier(cur_dapm, + i, + cur_subseq); } - /* Lower PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && !power) - dapm_set_pga(w, power); + if (cur_dapm && w->dapm != cur_dapm) + soc_dapm_async_complete(cur_dapm); - dapm_update_bits(w); + INIT_LIST_HEAD(&pending); + cur_sort = -1; + cur_subseq = INT_MIN; + cur_reg = SND_SOC_NOPM; + cur_dapm = NULL; + } - /* Raise PGA volume to reduce pops */ - if (w->id == snd_soc_dapm_pga && power) - dapm_set_pga(w, power); + switch (w->id) { + case snd_soc_dapm_pre: + if (!w->event) + list_for_each_entry_safe_continue(w, n, list, + power_list); - /* power up post event */ - if (power && w->event && - (w->event_flags & SND_SOC_DAPM_POST_PMU)) { + if (event == SND_SOC_DAPM_STREAM_START) + ret = w->event(w, + NULL, SND_SOC_DAPM_PRE_PMU); + else if (event == SND_SOC_DAPM_STREAM_STOP) + ret = w->event(w, + NULL, SND_SOC_DAPM_PRE_PMD); + break; + + case snd_soc_dapm_post: + if (!w->event) + list_for_each_entry_safe_continue(w, n, list, + power_list); + + 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); + break; + + default: + /* Queue it up for application */ + cur_sort = sort[w->id]; + cur_subseq = w->subseq; + cur_reg = w->reg; + cur_dapm = w->dapm; + list_move(&w->power_list, &pending); + break; + } + + if (ret < 0) + dev_err(w->dapm->dev, + "ASoC: Failed to apply widget power: %d\n", ret); + } + + if (!list_empty(&pending)) + dapm_seq_run_coalesced(card, &pending); + + if (cur_dapm && cur_dapm->seq_notifier) { + for (i = 0; i < ARRAY_SIZE(dapm_up_seq); i++) + if (sort[i] == cur_sort) + cur_dapm->seq_notifier(cur_dapm, + i, cur_subseq); + } + + list_for_each_entry(d, &card->dapm_list, list) { + soc_dapm_async_complete(d); + } +} + +static void dapm_widget_update(struct snd_soc_card *card) +{ + struct snd_soc_dapm_update *update = card->update; + struct snd_soc_dapm_widget_list *wlist; + struct snd_soc_dapm_widget *w = NULL; + unsigned int wi; + int ret; + + if (!update || !dapm_kcontrol_is_powered(update->kcontrol)) + return; + + wlist = dapm_kcontrol_get_wlist(update->kcontrol); + + for (wi = 0; wi < wlist->num_widgets; wi++) { + w = wlist->widgets[wi]; + + if (w->event && (w->event_flags & SND_SOC_DAPM_PRE_REG)) { + ret = w->event(w, update->kcontrol, SND_SOC_DAPM_PRE_REG); + if (ret != 0) + dev_err(w->dapm->dev, "ASoC: %s DAPM pre-event failed: %d\n", + w->name, ret); + } + } + + if (!w) + return; + + ret = soc_widget_update_bits(w, update->reg, update->mask, update->val); + if (ret < 0) + dev_err(w->dapm->dev, "ASoC: %s DAPM update failed: %d\n", + w->name, 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; + for (wi = 0; wi < wlist->num_widgets; wi++) { + w = wlist->widgets[wi]; + + if (w->event && (w->event_flags & SND_SOC_DAPM_POST_REG)) { + ret = w->event(w, update->kcontrol, SND_SOC_DAPM_POST_REG); + if (ret != 0) + dev_err(w->dapm->dev, "ASoC: %s DAPM post-event failed: %d\n", + w->name, ret); + } + } +} + +/* Async callback run prior to DAPM sequences - brings to _PREPARE if + * they're changing state. + */ +static void dapm_pre_sequence_async(void *data, async_cookie_t cookie) +{ + struct snd_soc_dapm_context *d = data; + int ret; + + /* If we're off and we're not supposed to be go into STANDBY */ + if (d->bias_level == SND_SOC_BIAS_OFF && + d->target_bias_level != SND_SOC_BIAS_OFF) { + if (d->dev) + pm_runtime_get_sync(d->dev); + + ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); + if (ret != 0) + dev_err(d->dev, + "ASoC: Failed to turn on bias: %d\n", ret); + } + + /* Prepare for a transition to ON or away from ON */ + if ((d->target_bias_level == SND_SOC_BIAS_ON && + d->bias_level != SND_SOC_BIAS_ON) || + (d->target_bias_level != SND_SOC_BIAS_ON && + d->bias_level == SND_SOC_BIAS_ON)) { + ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); + if (ret != 0) + dev_err(d->dev, + "ASoC: Failed to prepare bias: %d\n", ret); + } +} + +/* Async callback run prior to DAPM sequences - brings to their final + * state. + */ +static void dapm_post_sequence_async(void *data, async_cookie_t cookie) +{ + struct snd_soc_dapm_context *d = data; + int ret; + + /* If we just powered the last thing off drop to standby bias */ + if (d->bias_level == SND_SOC_BIAS_PREPARE && + (d->target_bias_level == SND_SOC_BIAS_STANDBY || + d->target_bias_level == SND_SOC_BIAS_OFF)) { + ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); + if (ret != 0) + dev_err(d->dev, "ASoC: Failed to apply standby bias: %d\n", + ret); + } + + /* If we're in standby and can support bias off then do that */ + if (d->bias_level == SND_SOC_BIAS_STANDBY && + d->target_bias_level == SND_SOC_BIAS_OFF) { + ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); + if (ret != 0) + dev_err(d->dev, "ASoC: Failed to turn off bias: %d\n", + ret); + + if (d->dev) + pm_runtime_put(d->dev); + } + + /* If we just powered up then move to active bias */ + if (d->bias_level == SND_SOC_BIAS_PREPARE && + d->target_bias_level == SND_SOC_BIAS_ON) { + ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); + if (ret != 0) + dev_err(d->dev, "ASoC: Failed to apply active bias: %d\n", + ret); + } +} + +static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer, + bool power, bool connect) +{ + /* If a connection is being made or broken then that update + * will have marked the peer dirty, otherwise the widgets are + * not connected and this update has no impact. */ + if (!connect) + return; + + /* If the peer is already in the state we're moving to then we + * won't have an impact on it. */ + if (power != peer->power) + dapm_mark_dirty(peer, "peer state change"); +} + +static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, + struct list_head *up_list, + struct list_head *down_list) +{ + struct snd_soc_dapm_path *path; + + if (w->power == power) + return; + + trace_snd_soc_dapm_widget_power(w, power); + + /* If we changed our power state perhaps our neigbours changed + * also. + */ + list_for_each_entry(path, &w->sources, list_sink) { + if (path->source) { + dapm_widget_set_peer_power(path->source, power, + path->connect); + } + } + switch (w->id) { + case snd_soc_dapm_supply: + case snd_soc_dapm_regulator_supply: + case snd_soc_dapm_clock_supply: + case snd_soc_dapm_kcontrol: + /* Supplies can't affect their outputs, only their inputs */ + break; + default: + list_for_each_entry(path, &w->sinks, list_source) { + if (path->sink) { + dapm_widget_set_peer_power(path->sink, power, + path->connect); } } + break; } - return ret; + if (power) + dapm_seq_insert(w, up_list, true); + else + dapm_seq_insert(w, down_list, false); } -#ifdef DEBUG -static void dbg_dump_dapm(struct snd_soc_codec* codec, const char *action) +static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, + struct list_head *up_list, + struct list_head *down_list) +{ + int power; + + switch (w->id) { + case snd_soc_dapm_pre: + dapm_seq_insert(w, down_list, false); + break; + case snd_soc_dapm_post: + dapm_seq_insert(w, up_list, true); + break; + + default: + power = dapm_widget_power_check(w); + + dapm_widget_set_power(w, power, up_list, down_list); + break; + } +} + +/* + * Scan each dapm widget for complete audio path. + * A complete path is a route that has valid endpoints i.e.:- + * + * o DAC to output pin. + * o Input Pin to ADC. + * o Input pin to Output pin (bypass, sidetone) + * o DAC to ADC (loopback). + */ +static int dapm_power_widgets(struct snd_soc_card *card, int event) { struct snd_soc_dapm_widget *w; - struct snd_soc_dapm_path *p = NULL; - int in, out; + struct snd_soc_dapm_context *d; + LIST_HEAD(up_list); + LIST_HEAD(down_list); + ASYNC_DOMAIN_EXCLUSIVE(async_domain); + enum snd_soc_bias_level bias; + + lockdep_assert_held(&card->dapm_mutex); - printk("DAPM %s %s\n", codec->name, action); + trace_snd_soc_dapm_start(card); - list_for_each_entry(w, &codec->dapm_widgets, list) { + list_for_each_entry(d, &card->dapm_list, list) { + if (d->idle_bias_off) + d->target_bias_level = SND_SOC_BIAS_OFF; + else + d->target_bias_level = SND_SOC_BIAS_STANDBY; + } - /* only display widgets that effect routing */ + dapm_reset(card); + + /* Check which widgets we need to power and store them in + * lists indicating if they should be powered up or down. We + * only check widgets that have been flagged as dirty but note + * that new widgets may be added to the dirty list while we + * iterate. + */ + list_for_each_entry(w, &card->dapm_dirty, dirty) { + dapm_power_one_widget(w, &up_list, &down_list); + } + + list_for_each_entry(w, &card->widgets, list) { switch (w->id) { case snd_soc_dapm_pre: case snd_soc_dapm_post: - case snd_soc_dapm_vmid: - continue; - case snd_soc_dapm_mux: - case snd_soc_dapm_output: - case snd_soc_dapm_input: - case snd_soc_dapm_switch: - case snd_soc_dapm_hp: - case snd_soc_dapm_mic: - case snd_soc_dapm_spk: - case snd_soc_dapm_line: - case snd_soc_dapm_micbias: - case snd_soc_dapm_dac: - case snd_soc_dapm_adc: - case snd_soc_dapm_pga: - case snd_soc_dapm_mixer: - if (w->name) { - in = is_connected_input_ep(w); - dapm_clear_walk(w->codec); - out = is_connected_output_ep(w); - dapm_clear_walk(w->codec); - printk("%s: %s in %d out %d\n", w->name, - w->power ? "On":"Off",in, out); - - list_for_each_entry(p, &w->sources, list_sink) { - if (p->connect) - printk(" in %s %s\n", p->name ? p->name : "static", - p->source->name); - } - list_for_each_entry(p, &w->sinks, list_source) { - if (p->connect) - printk(" out %s %s\n", p->name ? p->name : "static", - p->sink->name); - } + /* These widgets always need to be powered */ + break; + default: + list_del_init(&w->dirty); + break; + } + + if (w->new_power) { + d = w->dapm; + + /* Supplies and micbiases only bring the + * context up to STANDBY as unless something + * else is active and passing audio they + * generally don't require full power. Signal + * generators are virtual pins and have no + * power impact themselves. + */ + switch (w->id) { + case snd_soc_dapm_siggen: + case snd_soc_dapm_vmid: + break; + case snd_soc_dapm_supply: + case snd_soc_dapm_regulator_supply: + case snd_soc_dapm_clock_supply: + case snd_soc_dapm_micbias: + if (d->target_bias_level < SND_SOC_BIAS_STANDBY) + d->target_bias_level = SND_SOC_BIAS_STANDBY; + break; + default: + d->target_bias_level = SND_SOC_BIAS_ON; + break; } - break; } + + } + + /* Force all contexts in the card to the same bias state if + * they're not ground referenced. + */ + bias = SND_SOC_BIAS_OFF; + list_for_each_entry(d, &card->dapm_list, list) + if (d->target_bias_level > bias) + bias = d->target_bias_level; + list_for_each_entry(d, &card->dapm_list, list) + if (!d->idle_bias_off) + d->target_bias_level = bias; + + trace_snd_soc_dapm_walk_done(card); + + /* Run card bias changes at first */ + dapm_pre_sequence_async(&card->dapm, 0); + /* Run other bias changes in parallel */ + list_for_each_entry(d, &card->dapm_list, list) { + if (d != &card->dapm) + async_schedule_domain(dapm_pre_sequence_async, d, + &async_domain); + } + async_synchronize_full_domain(&async_domain); + + list_for_each_entry(w, &down_list, power_list) { + dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMD); + } + + list_for_each_entry(w, &up_list, power_list) { + dapm_seq_check_event(card, w, SND_SOC_DAPM_WILL_PMU); + } + + /* Power down widgets first; try to avoid amplifying pops. */ + dapm_seq_run(card, &down_list, event, false); + + dapm_widget_update(card); + + /* Now power up. */ + dapm_seq_run(card, &up_list, event, true); + + /* Run all the bias changes in parallel */ + list_for_each_entry(d, &card->dapm_list, list) { + if (d != &card->dapm) + async_schedule_domain(dapm_post_sequence_async, d, + &async_domain); + } + async_synchronize_full_domain(&async_domain); + /* Run card bias changes at last */ + dapm_post_sequence_async(&card->dapm, 0); + + /* do we need to notify any clients that DAPM event is complete */ + list_for_each_entry(d, &card->dapm_list, list) { + if (d->stream_event) + d->stream_event(d, event); + } + + pop_dbg(card->dev, card->pop_time, + "DAPM sequencing finished, waiting %dms\n", card->pop_time); + pop_wait(card->pop_time); + + trace_snd_soc_dapm_done(card); + + return 0; +} + +#ifdef CONFIG_DEBUG_FS +static ssize_t dapm_widget_power_read_file(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct snd_soc_dapm_widget *w = file->private_data; + char *buf; + int in, out; + ssize_t ret; + struct snd_soc_dapm_path *p = NULL; + + buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + in = is_connected_input_ep(w, NULL); + dapm_clear_walk_input(w->dapm, &w->sources); + out = is_connected_output_ep(w, NULL); + dapm_clear_walk_output(w->dapm, &w->sinks); + + ret = snprintf(buf, PAGE_SIZE, "%s: %s%s in %d out %d", + w->name, w->power ? "On" : "Off", + w->force ? " (forced)" : "", in, out); + + if (w->reg >= 0) + ret += snprintf(buf + ret, PAGE_SIZE - ret, + " - R%d(0x%x) mask 0x%x", + w->reg, w->reg, w->mask << w->shift); + + ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n"); + + if (w->sname) + ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s\n", + w->sname, + w->active ? "active" : "inactive"); + + list_for_each_entry(p, &w->sources, list_sink) { + if (p->connected && !p->connected(w, p->source)) + continue; + + if (p->connect) + ret += snprintf(buf + ret, PAGE_SIZE - ret, + " in \"%s\" \"%s\"\n", + p->name ? p->name : "static", + p->source->name); + } + list_for_each_entry(p, &w->sinks, list_source) { + if (p->connected && !p->connected(w, p->sink)) + continue; + + if (p->connect) + ret += snprintf(buf + ret, PAGE_SIZE - ret, + " out \"%s\" \"%s\"\n", + p->name ? p->name : "static", + p->sink->name); + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); + + kfree(buf); + return ret; +} + +static const struct file_operations dapm_widget_power_fops = { + .open = simple_open, + .read = dapm_widget_power_read_file, + .llseek = default_llseek, +}; + +static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct snd_soc_dapm_context *dapm = file->private_data; + char *level; + + switch (dapm->bias_level) { + case SND_SOC_BIAS_ON: + level = "On\n"; + break; + case SND_SOC_BIAS_PREPARE: + level = "Prepare\n"; + break; + case SND_SOC_BIAS_STANDBY: + level = "Standby\n"; + break; + case SND_SOC_BIAS_OFF: + level = "Off\n"; + break; + default: + WARN(1, "Unknown bias_level %d\n", dapm->bias_level); + level = "Unknown\n"; + break; } + + return simple_read_from_buffer(user_buf, count, ppos, level, + strlen(level)); } + +static const struct file_operations dapm_bias_fops = { + .open = simple_open, + .read = dapm_bias_read_file, + .llseek = default_llseek, +}; + +void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, + struct dentry *parent) +{ + struct dentry *d; + + dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); + + if (!dapm->debugfs_dapm) { + dev_warn(dapm->dev, + "ASoC: Failed to create DAPM debugfs directory\n"); + return; + } + + d = debugfs_create_file("bias_level", 0444, + dapm->debugfs_dapm, dapm, + &dapm_bias_fops); + if (!d) + dev_warn(dapm->dev, + "ASoC: Failed to create bias level debugfs file\n"); +} + +static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + struct dentry *d; + + if (!dapm->debugfs_dapm || !w->name) + return; + + d = debugfs_create_file(w->name, 0444, + dapm->debugfs_dapm, w, + &dapm_widget_power_fops); + if (!d) + dev_warn(w->dapm->dev, + "ASoC: Failed to create %s debugfs file\n", + w->name); +} + +static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) +{ + debugfs_remove_recursive(dapm->debugfs_dapm); +} + +#else +void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, + struct dentry *parent) +{ +} + +static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) +{ +} + +static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) +{ +} + #endif /* 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) +static int soc_dapm_mux_update_power(struct snd_soc_card *card, + struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e) { struct snd_soc_dapm_path *path; int found = 0; - if (widget->id != snd_soc_dapm_mux) - return -ENODEV; - - if (!snd_soc_test_bits(widget->codec, e->reg, mask, val)) - return 0; + lockdep_assert_held(&card->dapm_mutex); /* find dapm widget path assoc with kcontrol */ - list_for_each_entry(path, &widget->codec->dapm_paths, list) { - if (path->kcontrol != kcontrol) - continue; - - if (!path->name || ! e->texts[val]) + dapm_kcontrol_for_each_path(path, kcontrol) { + 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 + dapm_mark_dirty(path->source, "mux connection"); + } else { + if (path->connect) + dapm_mark_dirty(path->source, + "mux disconnection"); path->connect = 0; /* old connection must be powered down */ + } + dapm_mark_dirty(path->sink, "mux change"); } - if (found) { - dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP); - dump_dapm(widget->codec, "mux power update"); - } + if (found) + dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); - return 0; + return found; +} + +int snd_soc_dapm_mux_update_power(struct snd_soc_dapm_context *dapm, + struct snd_kcontrol *kcontrol, int mux, struct soc_enum *e, + struct snd_soc_dapm_update *update) +{ + struct snd_soc_card *card = dapm->card; + int ret; + + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + card->update = update; + ret = soc_dapm_mux_update_power(card, kcontrol, mux, e); + card->update = NULL; + mutex_unlock(&card->dapm_mutex); + if (ret > 0) + soc_dpcm_runtime_update(card); + return ret; } +EXPORT_SYMBOL_GPL(snd_soc_dapm_mux_update_power); /* test and update the power status of a mixer or switch widget */ -static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, - struct snd_kcontrol *kcontrol, int reg, - int val_mask, int val, int invert) +static int soc_dapm_mixer_update_power(struct snd_soc_card *card, + struct snd_kcontrol *kcontrol, int connect) { struct snd_soc_dapm_path *path; int found = 0; - if (widget->id != snd_soc_dapm_mixer && - widget->id != snd_soc_dapm_switch) - return -ENODEV; - - if (!snd_soc_test_bits(widget->codec, reg, val_mask, val)) - return 0; + lockdep_assert_held(&card->dapm_mutex); /* find dapm widget path assoc with kcontrol */ - list_for_each_entry(path, &widget->codec->dapm_paths, list) { - if (path->kcontrol != kcontrol) - continue; - - /* found, now check type */ + dapm_kcontrol_for_each_path(path, kcontrol) { found = 1; - if (val) - /* new connection */ - path->connect = invert ? 0:1; - else - /* old connection must be powered down */ - path->connect = invert ? 1:0; - break; + path->connect = connect; + dapm_mark_dirty(path->source, "mixer connection"); + dapm_mark_dirty(path->sink, "mixer update"); } - if (found) { - dapm_power_widgets(widget->codec, SND_SOC_DAPM_STREAM_NOP); - dump_dapm(widget->codec, "mixer power update"); - } + if (found) + dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); - return 0; + return found; +} + +int snd_soc_dapm_mixer_update_power(struct snd_soc_dapm_context *dapm, + struct snd_kcontrol *kcontrol, int connect, + struct snd_soc_dapm_update *update) +{ + struct snd_soc_card *card = dapm->card; + int ret; + + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + card->update = update; + ret = soc_dapm_mixer_update_power(card, kcontrol, connect); + card->update = NULL; + mutex_unlock(&card->dapm_mutex); + if (ret > 0) + soc_dpcm_runtime_update(card); + return ret; } +EXPORT_SYMBOL_GPL(snd_soc_dapm_mixer_update_power); /* show dapm widget status in sys fs */ static ssize_t dapm_widget_show(struct device *dev, 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_pcm_runtime *rtd = dev_get_drvdata(dev); + struct snd_soc_codec *codec =rtd->codec; struct snd_soc_dapm_widget *w; int count = 0; char *state = "not set"; - list_for_each_entry(w, &codec->dapm_widgets, list) { + list_for_each_entry(w, &codec->card->widgets, list) { + if (w->dapm != &codec->dapm) + continue; /* only display widgets that burnm power */ switch (w->id) { @@ -779,7 +2086,12 @@ static ssize_t dapm_widget_show(struct device *dev, case snd_soc_dapm_dac: case snd_soc_dapm_adc: case snd_soc_dapm_pga: + case snd_soc_dapm_out_drv: case snd_soc_dapm_mixer: + case snd_soc_dapm_mixer_named_ctl: + case snd_soc_dapm_supply: + case snd_soc_dapm_regulator_supply: + case snd_soc_dapm_clock_supply: if (w->name) count += sprintf(buf + count, "%s: %s\n", w->name, w->power ? "On":"Off"); @@ -789,7 +2101,7 @@ static ssize_t dapm_widget_show(struct device *dev, } } - switch (codec->bias_level) { + switch (codec->dapm.bias_level) { case SND_SOC_BIAS_ON: state = "On"; break; @@ -810,126 +2122,148 @@ static ssize_t dapm_widget_show(struct device *dev, 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) - +int snd_soc_dapm_sys_add(struct device *dev) { - 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; + return device_create_file(dev, &dev_attr_dapm_widget); } -static DEVICE_ATTR(dapm_pop_time, 0744, dapm_pop_time_show, - dapm_pop_time_store); - -int snd_soc_dapm_sys_add(struct device *dev) +static void snd_soc_dapm_sys_remove(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; + device_remove_file(dev, &dev_attr_dapm_widget); } -static void snd_soc_dapm_sys_remove(struct device *dev) +static void dapm_free_path(struct snd_soc_dapm_path *path) { - if (dapm_status) { - device_remove_file(dev, &dev_attr_dapm_pop_time); - device_remove_file(dev, &dev_attr_dapm_widget); - } + list_del(&path->list_sink); + list_del(&path->list_source); + list_del(&path->list_kcontrol); + list_del(&path->list); + kfree(path); } /* free all dapm widgets and resources */ -static void dapm_free_widgets(struct snd_soc_codec *codec) +static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) { struct snd_soc_dapm_widget *w, *next_w; struct snd_soc_dapm_path *p, *next_p; - list_for_each_entry_safe(w, next_w, &codec->dapm_widgets, list) { + list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { + if (w->dapm != dapm) + continue; list_del(&w->list); + /* + * remove source and sink paths associated to this widget. + * While removing the path, remove reference to it from both + * source and sink widgets so that path is removed only once. + */ + list_for_each_entry_safe(p, next_p, &w->sources, list_sink) + dapm_free_path(p); + + list_for_each_entry_safe(p, next_p, &w->sinks, list_source) + dapm_free_path(p); + + kfree(w->kcontrols); + kfree(w->name); kfree(w); } - - list_for_each_entry_safe(p, next_p, &codec->dapm_paths, list) { - list_del(&p->list); - kfree(p->long_name); - kfree(p); - } } -static int snd_soc_dapm_set_pin(struct snd_soc_codec *codec, - char *pin, int status) +static struct snd_soc_dapm_widget *dapm_find_widget( + struct snd_soc_dapm_context *dapm, const char *pin, + bool search_other_contexts) { struct snd_soc_dapm_widget *w; + struct snd_soc_dapm_widget *fallback = NULL; - list_for_each_entry(w, &codec->dapm_widgets, list) { + list_for_each_entry(w, &dapm->card->widgets, list) { if (!strcmp(w->name, pin)) { - pr_debug("dapm: %s: pin %s\n", codec->name, pin); - w->connected = status; - return 0; + if (w->dapm == dapm) + return w; + else + fallback = w; } } - pr_err("dapm: %s: configuring unknown pin %s\n", codec->name, pin); - return -EINVAL; + if (search_other_contexts) + return fallback; + + return NULL; +} + +static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm, + const char *pin, int status) +{ + struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); + + dapm_assert_locked(dapm); + + if (!w) { + dev_err(dapm->dev, "ASoC: DAPM unknown pin %s\n", pin); + return -EINVAL; + } + + if (w->connected != status) + dapm_mark_dirty(w, "pin configuration"); + + w->connected = status; + if (status == 0) + w->force = 0; + + return 0; } /** + * snd_soc_dapm_sync_unlocked - scan and power dapm paths + * @dapm: DAPM context + * + * Walks all dapm audio paths and powers widgets according to their + * stream or path usage. + * + * Requires external locking. + * + * Returns 0 for success. + */ +int snd_soc_dapm_sync_unlocked(struct snd_soc_dapm_context *dapm) +{ + /* + * Suppress early reports (eg, jacks syncing their state) to avoid + * silly DAPM runs during card startup. + */ + if (!dapm->card || !dapm->card->instantiated) + return 0; + + return dapm_power_widgets(dapm->card, SND_SOC_DAPM_STREAM_NOP); +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_sync_unlocked); + +/** * snd_soc_dapm_sync - scan and power dapm paths - * @codec: audio codec + * @dapm: DAPM context * * Walks all dapm audio paths and powers widgets according to their * stream or path usage. * * Returns 0 for success. */ -int snd_soc_dapm_sync(struct snd_soc_codec *codec) +int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) { - int ret = dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP); - dump_dapm(codec, "sync"); + int ret; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + ret = snd_soc_dapm_sync_unlocked(dapm); + mutex_unlock(&dapm->card->dapm_mutex); return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); -static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, - const char *sink, const char *control, const char *source) +static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm, + struct snd_soc_dapm_widget *wsource, struct snd_soc_dapm_widget *wsink, + const char *control, + int (*connected)(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink)) { struct snd_soc_dapm_path *path; - struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; - int ret = 0; - - /* find src and dest widgets */ - list_for_each_entry(w, &codec->dapm_widgets, list) { - - if (!wsink && !(strcmp(w->name, sink))) { - wsink = w; - continue; - } - if (!wsource && !(strcmp(w->name, source))) { - wsource = w; - } - } - - if (wsource == NULL || wsink == NULL) - return -ENODEV; + int ret; path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); if (!path) @@ -937,7 +2271,9 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, path->source = wsource; path->sink = wsink; + path->connected = connected; INIT_LIST_HEAD(&path->list); + INIT_LIST_HEAD(&path->list_kcontrol); INIT_LIST_HEAD(&path->list_source); INIT_LIST_HEAD(&path->list_sink); @@ -945,8 +2281,8 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, if (wsink->id == snd_soc_dapm_input) { if (wsource->id == snd_soc_dapm_micbias || wsource->id == snd_soc_dapm_mic || - wsink->id == snd_soc_dapm_line || - wsink->id == snd_soc_dapm_output) + wsource->id == snd_soc_dapm_line || + wsource->id == snd_soc_dapm_output) wsink->ext = 1; } if (wsource->id == snd_soc_dapm_output) { @@ -957,9 +2293,12 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, wsource->ext = 1; } + dapm_mark_dirty(wsource, "Route added"); + dapm_mark_dirty(wsink, "Route added"); + /* connect static paths */ if (control == NULL) { - list_add(&path->list, &codec->dapm_paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 1; @@ -967,30 +2306,42 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, } /* connect dynamic paths */ - switch(wsink->id) { + switch (wsink->id) { case snd_soc_dapm_adc: case snd_soc_dapm_dac: case snd_soc_dapm_pga: + case snd_soc_dapm_out_drv: case snd_soc_dapm_input: case snd_soc_dapm_output: + case snd_soc_dapm_siggen: case snd_soc_dapm_micbias: case snd_soc_dapm_vmid: case snd_soc_dapm_pre: case snd_soc_dapm_post: - list_add(&path->list, &codec->dapm_paths); + case snd_soc_dapm_supply: + case snd_soc_dapm_regulator_supply: + case snd_soc_dapm_clock_supply: + case snd_soc_dapm_aif_in: + case snd_soc_dapm_aif_out: + case snd_soc_dapm_dai_in: + case snd_soc_dapm_dai_out: + case snd_soc_dapm_dai_link: + case snd_soc_dapm_kcontrol: + list_add(&path->list, &dapm->card->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: - ret = dapm_connect_mux(codec, wsource, wsink, path, control, - &wsink->kcontrols[0]); + ret = dapm_connect_mux(dapm, wsource, wsink, path, control, + &wsink->kcontrol_news[0]); if (ret != 0) goto err; break; case snd_soc_dapm_switch: case snd_soc_dapm_mixer: - ret = dapm_connect_mixer(codec, wsource, wsink, path, control); + case snd_soc_dapm_mixer_named_ctl: + ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); if (ret != 0) goto err; break; @@ -998,46 +2349,141 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, case snd_soc_dapm_mic: case snd_soc_dapm_line: case snd_soc_dapm_spk: - list_add(&path->list, &codec->dapm_paths); + list_add(&path->list, &dapm->card->paths); list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 0; return 0; } - return 0; + return 0; err: - printk(KERN_WARNING "asoc: no dapm match for %s --> %s --> %s\n", source, - control, sink); kfree(path); return ret; } -/** - * 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) +static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_route *route) +{ + struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; + struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; + const char *sink; + const char *source; + char prefixed_sink[80]; + char prefixed_source[80]; + int ret; + + if (dapm->codec && dapm->codec->name_prefix) { + snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", + dapm->codec->name_prefix, route->sink); + sink = prefixed_sink; + snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", + dapm->codec->name_prefix, route->source); + source = prefixed_source; + } else { + sink = route->sink; + source = route->source; + } + + /* + * find src and dest widgets over all widgets but favor a widget from + * current DAPM context + */ + list_for_each_entry(w, &dapm->card->widgets, list) { + if (!wsink && !(strcmp(w->name, sink))) { + wtsink = w; + if (w->dapm == dapm) + wsink = w; + continue; + } + if (!wsource && !(strcmp(w->name, source))) { + wtsource = w; + if (w->dapm == dapm) + wsource = w; + } + } + /* use widget from another DAPM context if not found from this */ + if (!wsink) + wsink = wtsink; + if (!wsource) + wsource = wtsource; + + if (wsource == NULL) { + dev_err(dapm->dev, "ASoC: no source widget found for %s\n", + route->source); + return -ENODEV; + } + if (wsink == NULL) { + dev_err(dapm->dev, "ASoC: no sink widget found for %s\n", + route->sink); + return -ENODEV; + } + + ret = snd_soc_dapm_add_path(dapm, wsource, wsink, route->control, + route->connected); + if (ret) + goto err; + + return 0; +err: + dev_warn(dapm->dev, "ASoC: no dapm match for %s --> %s --> %s\n", + source, route->control, sink); + return ret; +} + +static int snd_soc_dapm_del_route(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_route *route) { - return snd_soc_dapm_add_route(codec, sink, control, source); + struct snd_soc_dapm_path *path, *p; + const char *sink; + const char *source; + char prefixed_sink[80]; + char prefixed_source[80]; + + if (route->control) { + dev_err(dapm->dev, + "ASoC: Removal of routes with controls not supported\n"); + return -EINVAL; + } + + if (dapm->codec && dapm->codec->name_prefix) { + snprintf(prefixed_sink, sizeof(prefixed_sink), "%s %s", + dapm->codec->name_prefix, route->sink); + sink = prefixed_sink; + snprintf(prefixed_source, sizeof(prefixed_source), "%s %s", + dapm->codec->name_prefix, route->source); + source = prefixed_source; + } else { + sink = route->sink; + source = route->source; + } + + path = NULL; + list_for_each_entry(p, &dapm->card->paths, list) { + if (strcmp(p->source->name, source) != 0) + continue; + if (strcmp(p->sink->name, sink) != 0) + continue; + path = p; + break; + } + + if (path) { + dapm_mark_dirty(path->source, "Route removed"); + dapm_mark_dirty(path->sink, "Route removed"); + + dapm_free_path(path); + } else { + dev_warn(dapm->dev, "ASoC: Route %s->%s does not exist\n", + source, sink); + } + + return 0; } -EXPORT_SYMBOL_GPL(snd_soc_dapm_connect_input); /** * snd_soc_dapm_add_routes - Add routes between DAPM widgets - * @codec: codec + * @dapm: DAPM context * @route: audio routes * @num: number of routes * @@ -1048,73 +2494,197 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_connect_input); * Returns 0 for success else error. On error all resources can be freed * with a call to snd_soc_card_free(). */ -int snd_soc_dapm_add_routes(struct snd_soc_codec *codec, +int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, const struct snd_soc_dapm_route *route, int num) { - int i, ret; + int i, r, ret = 0; + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); for (i = 0; i < num; i++) { - ret = snd_soc_dapm_add_route(codec, route->sink, - route->control, route->source); - if (ret < 0) { - printk(KERN_ERR "Failed to add route %s->%s\n", - route->source, - route->sink); - return ret; + r = snd_soc_dapm_add_route(dapm, route); + if (r < 0) { + dev_err(dapm->dev, "ASoC: Failed to add route %s -> %s -> %s\n", + route->source, + route->control ? route->control : "direct", + route->sink); + ret = r; } route++; } + mutex_unlock(&dapm->card->dapm_mutex); - return 0; + return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); /** + * snd_soc_dapm_del_routes - Remove routes between DAPM widgets + * @dapm: DAPM context + * @route: audio routes + * @num: number of routes + * + * Removes routes from the DAPM context. + */ +int snd_soc_dapm_del_routes(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_route *route, int num) +{ + int i, ret = 0; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); + for (i = 0; i < num; i++) { + snd_soc_dapm_del_route(dapm, route); + route++; + } + mutex_unlock(&dapm->card->dapm_mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_del_routes); + +static int snd_soc_dapm_weak_route(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_route *route) +{ + struct snd_soc_dapm_widget *source = dapm_find_widget(dapm, + route->source, + true); + struct snd_soc_dapm_widget *sink = dapm_find_widget(dapm, + route->sink, + true); + struct snd_soc_dapm_path *path; + int count = 0; + + if (!source) { + dev_err(dapm->dev, "ASoC: Unable to find source %s for weak route\n", + route->source); + return -ENODEV; + } + + if (!sink) { + dev_err(dapm->dev, "ASoC: Unable to find sink %s for weak route\n", + route->sink); + return -ENODEV; + } + + if (route->control || route->connected) + dev_warn(dapm->dev, "ASoC: Ignoring control for weak route %s->%s\n", + route->source, route->sink); + + list_for_each_entry(path, &source->sinks, list_source) { + if (path->sink == sink) { + path->weak = 1; + count++; + } + } + + if (count == 0) + dev_err(dapm->dev, "ASoC: No path found for weak route %s->%s\n", + route->source, route->sink); + if (count > 1) + dev_warn(dapm->dev, "ASoC: %d paths found for weak route %s->%s\n", + count, route->source, route->sink); + + return 0; +} + +/** + * snd_soc_dapm_weak_routes - Mark routes between DAPM widgets as weak + * @dapm: DAPM context + * @route: audio routes + * @num: number of routes + * + * Mark existing routes matching those specified in the passed array + * as being weak, meaning that they are ignored for the purpose of + * power decisions. The main intended use case is for sidetone paths + * which couple audio between other independent paths if they are both + * active in order to make the combination work better at the user + * level but which aren't intended to be "used". + * + * Note that CODEC drivers should not use this as sidetone type paths + * can frequently also be used as bypass paths. + */ +int snd_soc_dapm_weak_routes(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_route *route, int num) +{ + int i, err; + int ret = 0; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); + for (i = 0; i < num; i++) { + err = snd_soc_dapm_weak_route(dapm, route); + if (err) + ret = err; + route++; + } + mutex_unlock(&dapm->card->dapm_mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); + +/** * snd_soc_dapm_new_widgets - add new dapm widgets - * @codec: audio codec + * @dapm: DAPM context * * Checks the codec for any new dapm widgets and creates them if found. * * Returns 0 for success. */ -int snd_soc_dapm_new_widgets(struct snd_soc_codec *codec) +int snd_soc_dapm_new_widgets(struct snd_soc_card *card) { struct snd_soc_dapm_widget *w; + unsigned int val; - list_for_each_entry(w, &codec->dapm_widgets, list) + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); + + list_for_each_entry(w, &card->widgets, list) { if (w->new) continue; + if (w->num_kcontrols) { + w->kcontrols = kzalloc(w->num_kcontrols * + sizeof(struct snd_kcontrol *), + GFP_KERNEL); + if (!w->kcontrols) { + mutex_unlock(&card->dapm_mutex); + return -ENOMEM; + } + } + switch(w->id) { case snd_soc_dapm_switch: case snd_soc_dapm_mixer: - dapm_new_mixer(codec, w); + case snd_soc_dapm_mixer_named_ctl: + dapm_new_mixer(w); break; case snd_soc_dapm_mux: - dapm_new_mux(codec, w); + dapm_new_mux(w); break; - case snd_soc_dapm_adc: - case snd_soc_dapm_dac: case snd_soc_dapm_pga: - dapm_new_pga(codec, w); + case snd_soc_dapm_out_drv: + dapm_new_pga(w); break; - case snd_soc_dapm_input: - case snd_soc_dapm_output: - case snd_soc_dapm_micbias: - case snd_soc_dapm_spk: - case snd_soc_dapm_hp: - case snd_soc_dapm_mic: - case snd_soc_dapm_line: - case snd_soc_dapm_vmid: - case snd_soc_dapm_pre: - case snd_soc_dapm_post: + default: break; } + + /* Read the initial power state from the device */ + if (w->reg >= 0) { + soc_widget_read(w, w->reg, &val); + val = val >> w->shift; + val &= w->mask; + if (val == w->on_val) + w->power = 1; + } + w->new = 1; + + dapm_mark_dirty(w, "new widget"); + dapm_debugfs_add_widget(w); } - dapm_power_widgets(codec, SND_SOC_DAPM_STREAM_NOP); + dapm_power_widgets(card, SND_SOC_DAPM_STREAM_NOP); + mutex_unlock(&card->dapm_mutex); return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); @@ -1122,7 +2692,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); /** * 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. * @@ -1131,32 +2701,33 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, 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; - - /* return the saved value if we are powered down */ - if (widget->id == snd_soc_dapm_pga && !widget->power) { - ucontrol->value.integer.value[0] = widget->saved_value; - return 0; - } + struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); + struct snd_soc_card *card = codec->card; + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + 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; + unsigned int val; - ucontrol->value.integer.value[0] = - (snd_soc_read(widget->codec, reg) >> shift) & mask; - if (shift != rshift) - ucontrol->value.integer.value[1] = - (snd_soc_read(widget->codec, reg) >> rshift) & mask; - if (invert) { - ucontrol->value.integer.value[0] = - max - ucontrol->value.integer.value[0]; - if (shift != rshift) - ucontrol->value.integer.value[1] = - max - ucontrol->value.integer.value[1]; - } + if (snd_soc_volsw_is_stereo(mc)) + dev_warn(codec->dapm.dev, + "ASoC: Control '%s' is stereo, which is not supported\n", + kcontrol->id.name); + + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM) + val = (snd_soc_read(codec, reg) >> shift) & mask; + else + val = dapm_kcontrol_get_value(kcontrol); + mutex_unlock(&card->dapm_mutex); + + if (invert) + ucontrol->value.integer.value[0] = max - val; + else + ucontrol->value.integer.value[0] = val; return 0; } @@ -1165,7 +2736,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); /** * 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. * @@ -1174,67 +2745,70 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, 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; - unsigned short val, val2, val_mask; - int ret; + struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); + struct snd_soc_card *card = codec->card; + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + 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; + unsigned int val; + int connect, change, reg_change = 0; + struct snd_soc_dapm_update update; + int ret = 0; + + if (snd_soc_volsw_is_stereo(mc)) + dev_warn(codec->dapm.dev, + "ASoC: Control '%s' is stereo, which is not supported\n", + kcontrol->id.name); val = (ucontrol->value.integer.value[0] & mask); + connect = !!val; if (invert) val = max - val; - val_mask = mask << shift; - val = val << shift; - if (shift != rshift) { - val2 = (ucontrol->value.integer.value[1] & mask); - if (invert) - val2 = max - val2; - val_mask |= mask << rshift; - val |= val2 << rshift; - } - mutex_lock(&widget->codec->mutex); - widget->value = val; + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); - /* save volume value if the widget is powered down */ - if (widget->id == snd_soc_dapm_pga && !widget->power) { - widget->saved_value = val; - mutex_unlock(&widget->codec->mutex); - return 1; + change = dapm_kcontrol_set_value(kcontrol, val); + + if (reg != SND_SOC_NOPM) { + mask = mask << shift; + val = val << shift; + + reg_change = snd_soc_test_bits(codec, reg, mask, val); } - dapm_mixer_update_power(widget, kcontrol, reg, val_mask, val, invert); - 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) { - ret = 1; - goto out; - } + if (change || reg_change) { + if (reg_change) { + update.kcontrol = kcontrol; + update.reg = reg; + update.mask = mask; + update.val = val; + card->update = &update; } - ret = snd_soc_update_bits(widget->codec, reg, val_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, reg, val_mask, val); + change |= reg_change; -out: - mutex_unlock(&widget->codec->mutex); - return ret; + ret = soc_dapm_mixer_update_power(card, kcontrol, connect); + + card->update = NULL; + } + + mutex_unlock(&card->dapm_mutex); + + if (ret > 0) + soc_dpcm_runtime_update(card); + + return change; } EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); /** * 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. * @@ -1243,17 +2817,22 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); + struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned short val, bitmask; + unsigned int reg_val, val; + + if (e->reg != SND_SOC_NOPM) + reg_val = snd_soc_read(codec, e->reg); + else + reg_val = dapm_kcontrol_get_value(kcontrol); - for (bitmask = 1; bitmask < e->mask; bitmask <<= 1) - ; - val = snd_soc_read(widget->codec, e->reg); - ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1); - if (e->shift_l != e->shift_r) - ucontrol->value.enumerated.item[1] = - (val >> e->shift_r) & (bitmask - 1); + val = (reg_val >> e->shift_l) & e->mask; + ucontrol->value.enumerated.item[0] = snd_soc_enum_val_to_item(e, val); + if (e->shift_l != e->shift_r) { + val = (reg_val >> e->shift_r) & e->mask; + val = snd_soc_enum_val_to_item(e, val); + ucontrol->value.enumerated.item[1] = val; + } return 0; } @@ -1262,7 +2841,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); /** * 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. * @@ -1271,81 +2850,237 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); + struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); + struct snd_soc_card *card = codec->card; struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; - unsigned short val, mux; - unsigned short mask, bitmask; + unsigned int *item = ucontrol->value.enumerated.item; + unsigned int val, change; + unsigned int mask; + struct snd_soc_dapm_update update; int ret = 0; - for (bitmask = 1; bitmask < e->mask; bitmask <<= 1) - ; - if (ucontrol->value.enumerated.item[0] > e->mask - 1) + if (item[0] >= e->items) return -EINVAL; - mux = ucontrol->value.enumerated.item[0]; - val = mux << e->shift_l; - mask = (bitmask - 1) << e->shift_l; + + val = snd_soc_enum_item_to_val(e, 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->mask - 1) + if (item[1] > e->items) return -EINVAL; - val |= ucontrol->value.enumerated.item[1] << e->shift_r; - mask |= (bitmask - 1) << e->shift_r; + val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_l; + mask |= e->mask << e->shift_r; } - mutex_lock(&widget->codec->mutex); - widget->value = val; - dapm_mux_update_power(widget, kcontrol, mask, mux, 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; + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + + if (e->reg != SND_SOC_NOPM) + change = snd_soc_test_bits(codec, e->reg, mask, val); + else + change = dapm_kcontrol_set_value(kcontrol, val); + + if (change) { + if (e->reg != SND_SOC_NOPM) { + update.kcontrol = kcontrol; + update.reg = e->reg; + update.mask = mask; + update.val = val; + card->update = &update; } - 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; + ret = soc_dapm_mux_update_power(card, kcontrol, item[0], e); + + card->update = NULL; + } + + mutex_unlock(&card->dapm_mutex); + + if (ret > 0) + soc_dpcm_runtime_update(card); + + return change; } EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); /** - * snd_soc_dapm_new_control - create new dapm control - * @codec: audio codec - * @widget: widget template + * snd_soc_dapm_info_pin_switch - Info for a pin switch * - * Creates a new dapm control based upon the template. + * @kcontrol: mixer control + * @uinfo: control element information * - * Returns 0 for success else error. + * 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_card *card = snd_kcontrol_chip(kcontrol); + const char *pin = (const char *)kcontrol->private_value; + + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + + ucontrol->value.integer.value[0] = + snd_soc_dapm_get_pin_status(&card->dapm, pin); + + mutex_unlock(&card->dapm_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_new_control(struct snd_soc_codec *codec, - const struct snd_soc_dapm_widget *widget) +int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); + const char *pin = (const char *)kcontrol->private_value; + + if (ucontrol->value.integer.value[0]) + snd_soc_dapm_enable_pin(&card->dapm, pin); + else + snd_soc_dapm_disable_pin(&card->dapm, pin); + + snd_soc_dapm_sync(&card->dapm); + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); + +static struct snd_soc_dapm_widget * +snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, + const struct snd_soc_dapm_widget *widget) { struct snd_soc_dapm_widget *w; + int ret; if ((w = dapm_cnew_widget(widget)) == NULL) - return -ENOMEM; + return NULL; + + switch (w->id) { + case snd_soc_dapm_regulator_supply: + w->regulator = devm_regulator_get(dapm->dev, w->name); + if (IS_ERR(w->regulator)) { + ret = PTR_ERR(w->regulator); + dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", + w->name, ret); + return NULL; + } - w->codec = codec; + if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) { + ret = regulator_allow_bypass(w->regulator, true); + if (ret != 0) + dev_warn(w->dapm->dev, + "ASoC: Failed to bypass %s: %d\n", + w->name, ret); + } + break; + case snd_soc_dapm_clock_supply: +#ifdef CONFIG_CLKDEV_LOOKUP + w->clk = devm_clk_get(dapm->dev, w->name); + if (IS_ERR(w->clk)) { + ret = PTR_ERR(w->clk); + dev_err(dapm->dev, "ASoC: Failed to request %s: %d\n", + w->name, ret); + return NULL; + } +#else + return NULL; +#endif + break; + default: + break; + } + + if (dapm->codec && dapm->codec->name_prefix) + w->name = kasprintf(GFP_KERNEL, "%s %s", + dapm->codec->name_prefix, widget->name); + else + w->name = kasprintf(GFP_KERNEL, "%s", widget->name); + + if (w->name == NULL) { + kfree(w); + return NULL; + } + + 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; + break; + case snd_soc_dapm_mux: + w->power_check = dapm_generic_check_power; + break; + case snd_soc_dapm_dai_out: + w->power_check = dapm_adc_check_power; + break; + case snd_soc_dapm_dai_in: + w->power_check = dapm_dac_check_power; + break; + case snd_soc_dapm_adc: + case snd_soc_dapm_aif_out: + case snd_soc_dapm_dac: + case snd_soc_dapm_aif_in: + case snd_soc_dapm_pga: + case snd_soc_dapm_out_drv: + case snd_soc_dapm_input: + case snd_soc_dapm_output: + case snd_soc_dapm_micbias: + case snd_soc_dapm_spk: + case snd_soc_dapm_hp: + case snd_soc_dapm_mic: + case snd_soc_dapm_line: + case snd_soc_dapm_dai_link: + w->power_check = dapm_generic_check_power; + break; + case snd_soc_dapm_supply: + case snd_soc_dapm_regulator_supply: + case snd_soc_dapm_clock_supply: + case snd_soc_dapm_kcontrol: + w->power_check = dapm_supply_check_power; + break; + default: + w->power_check = dapm_always_on_check_power; + break; + } + + w->dapm = dapm; + w->codec = dapm->codec; + w->platform = dapm->platform; INIT_LIST_HEAD(&w->sources); INIT_LIST_HEAD(&w->sinks); INIT_LIST_HEAD(&w->list); - list_add(&w->list, &codec->dapm_widgets); + INIT_LIST_HEAD(&w->dirty); + list_add(&w->list, &dapm->card->widgets); /* machine layer set ups unconnected pins and insertions */ w->connected = 1; - return 0; + return w; } -EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); /** * snd_soc_dapm_new_controls - create new dapm controls - * @codec: audio codec + * @dapm: DAPM context * @widget: widget array * @num: number of widgets * @@ -1353,26 +3088,375 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); * * Returns 0 for success else error. */ -int snd_soc_dapm_new_controls(struct snd_soc_codec *codec, +int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, const struct snd_soc_dapm_widget *widget, int num) { - int i, ret; + struct snd_soc_dapm_widget *w; + int i; + int ret = 0; + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT); for (i = 0; i < num; i++) { - ret = snd_soc_dapm_new_control(codec, widget); - if (ret < 0) - return ret; + w = snd_soc_dapm_new_control(dapm, widget); + if (!w) { + dev_err(dapm->dev, + "ASoC: Failed to create DAPM control %s\n", + widget->name); + ret = -ENOMEM; + break; + } widget++; } - return 0; + mutex_unlock(&dapm->card->dapm_mutex); + return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); +static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_dapm_path *source_p, *sink_p; + struct snd_soc_dai *source, *sink; + const struct snd_soc_pcm_stream *config = w->params; + struct snd_pcm_substream substream; + struct snd_pcm_hw_params *params = NULL; + u64 fmt; + int ret; + + if (WARN_ON(!config) || + WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks))) + return -EINVAL; + + /* We only support a single source and sink, pick the first */ + source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path, + list_sink); + sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path, + list_source); + + if (WARN_ON(!source_p || !sink_p) || + WARN_ON(!sink_p->source || !source_p->sink) || + WARN_ON(!source_p->source || !sink_p->sink)) + return -EINVAL; + + source = source_p->source->priv; + sink = sink_p->sink->priv; + + /* Be a little careful as we don't want to overflow the mask array */ + if (config->formats) { + fmt = ffs(config->formats) - 1; + } else { + dev_warn(w->dapm->dev, "ASoC: Invalid format %llx specified\n", + config->formats); + fmt = 0; + } + + /* Currently very limited parameter selection */ + params = kzalloc(sizeof(*params), GFP_KERNEL); + if (!params) { + ret = -ENOMEM; + goto out; + } + snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), fmt); + + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min = + config->rate_min; + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max = + config->rate_max; + + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min + = config->channels_min; + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max + = config->channels_max; + + memset(&substream, 0, sizeof(substream)); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + if (source->driver->ops && source->driver->ops->hw_params) { + substream.stream = SNDRV_PCM_STREAM_CAPTURE; + ret = source->driver->ops->hw_params(&substream, + params, source); + if (ret != 0) { + dev_err(source->dev, + "ASoC: hw_params() failed: %d\n", ret); + goto out; + } + } + + if (sink->driver->ops && sink->driver->ops->hw_params) { + substream.stream = SNDRV_PCM_STREAM_PLAYBACK; + ret = sink->driver->ops->hw_params(&substream, params, + sink); + if (ret != 0) { + dev_err(sink->dev, + "ASoC: hw_params() failed: %d\n", ret); + goto out; + } + } + break; + + case SND_SOC_DAPM_POST_PMU: + ret = snd_soc_dai_digital_mute(sink, 0, + SNDRV_PCM_STREAM_PLAYBACK); + if (ret != 0 && ret != -ENOTSUPP) + dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret); + ret = 0; + break; + + case SND_SOC_DAPM_PRE_PMD: + ret = snd_soc_dai_digital_mute(sink, 1, + SNDRV_PCM_STREAM_PLAYBACK); + if (ret != 0 && ret != -ENOTSUPP) + dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret); + ret = 0; + break; + + default: + WARN(1, "Unknown event %d\n", event); + return -EINVAL; + } + +out: + kfree(params); + return ret; +} + +int snd_soc_dapm_new_pcm(struct snd_soc_card *card, + const struct snd_soc_pcm_stream *params, + struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) +{ + struct snd_soc_dapm_widget template; + struct snd_soc_dapm_widget *w; + size_t len; + char *link_name; + int ret; + + len = strlen(source->name) + strlen(sink->name) + 2; + link_name = devm_kzalloc(card->dev, len, GFP_KERNEL); + if (!link_name) + return -ENOMEM; + snprintf(link_name, len, "%s-%s", source->name, sink->name); + + memset(&template, 0, sizeof(template)); + template.reg = SND_SOC_NOPM; + template.id = snd_soc_dapm_dai_link; + template.name = link_name; + template.event = snd_soc_dai_link_event; + template.event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMD; + + dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name); + + w = snd_soc_dapm_new_control(&card->dapm, &template); + if (!w) { + dev_err(card->dev, "ASoC: Failed to create %s widget\n", + link_name); + return -ENOMEM; + } + + w->params = params; + + ret = snd_soc_dapm_add_path(&card->dapm, source, w, NULL, NULL); + if (ret) + return ret; + return snd_soc_dapm_add_path(&card->dapm, w, sink, NULL, NULL); +} + +int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm, + struct snd_soc_dai *dai) +{ + struct snd_soc_dapm_widget template; + struct snd_soc_dapm_widget *w; + + WARN_ON(dapm->dev != dai->dev); + + memset(&template, 0, sizeof(template)); + template.reg = SND_SOC_NOPM; + + if (dai->driver->playback.stream_name) { + template.id = snd_soc_dapm_dai_in; + template.name = dai->driver->playback.stream_name; + template.sname = dai->driver->playback.stream_name; + + dev_dbg(dai->dev, "ASoC: adding %s widget\n", + template.name); + + w = snd_soc_dapm_new_control(dapm, &template); + if (!w) { + dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", + dai->driver->playback.stream_name); + return -ENOMEM; + } + + w->priv = dai; + dai->playback_widget = w; + } + + if (dai->driver->capture.stream_name) { + template.id = snd_soc_dapm_dai_out; + template.name = dai->driver->capture.stream_name; + template.sname = dai->driver->capture.stream_name; + + dev_dbg(dai->dev, "ASoC: adding %s widget\n", + template.name); + + w = snd_soc_dapm_new_control(dapm, &template); + if (!w) { + dev_err(dapm->dev, "ASoC: Failed to create %s widget\n", + dai->driver->capture.stream_name); + return -ENOMEM; + } + + w->priv = dai; + dai->capture_widget = w; + } + + return 0; +} + +int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) +{ + struct snd_soc_dapm_widget *dai_w, *w; + struct snd_soc_dapm_widget *src, *sink; + struct snd_soc_dai *dai; + + /* For each DAI widget... */ + list_for_each_entry(dai_w, &card->widgets, list) { + switch (dai_w->id) { + case snd_soc_dapm_dai_in: + case snd_soc_dapm_dai_out: + break; + default: + continue; + } + + dai = dai_w->priv; + + /* ...find all widgets with the same stream and link them */ + list_for_each_entry(w, &card->widgets, list) { + if (w->dapm != dai_w->dapm) + continue; + + switch (w->id) { + case snd_soc_dapm_dai_in: + case snd_soc_dapm_dai_out: + continue; + default: + break; + } + + if (!w->sname || !strstr(w->sname, dai_w->name)) + continue; + + if (dai_w->id == snd_soc_dapm_dai_in) { + src = dai_w; + sink = w; + } else { + src = w; + sink = dai_w; + } + dev_dbg(dai->dev, "%s -> %s\n", src->name, sink->name); + snd_soc_dapm_add_path(w->dapm, src, sink, NULL, NULL); + } + } + + return 0; +} + +void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd = card->rtd; + struct snd_soc_dapm_widget *sink, *source; + struct snd_soc_dai *cpu_dai, *codec_dai; + int i; + + /* for each BE DAI link... */ + for (i = 0; i < card->num_rtd; i++) { + rtd = &card->rtd[i]; + cpu_dai = rtd->cpu_dai; + codec_dai = rtd->codec_dai; + + /* + * dynamic FE links have no fixed DAI mapping. + * CODEC<->CODEC links have no direct connection. + */ + if (rtd->dai_link->dynamic || rtd->dai_link->params) + continue; + + /* there is no point in connecting BE DAI links with dummies */ + if (snd_soc_dai_is_dummy(codec_dai) || + snd_soc_dai_is_dummy(cpu_dai)) + continue; + + /* connect BE DAI playback if widgets are valid */ + if (codec_dai->playback_widget && cpu_dai->playback_widget) { + source = cpu_dai->playback_widget; + sink = codec_dai->playback_widget; + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + cpu_dai->codec->name, source->name, + codec_dai->platform->name, sink->name); + + snd_soc_dapm_add_path(&card->dapm, source, sink, + NULL, NULL); + } + + /* connect BE DAI capture if widgets are valid */ + if (codec_dai->capture_widget && cpu_dai->capture_widget) { + source = codec_dai->capture_widget; + sink = cpu_dai->capture_widget; + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + codec_dai->codec->name, source->name, + cpu_dai->platform->name, sink->name); + + snd_soc_dapm_add_path(&card->dapm, source, sink, + NULL, NULL); + } + } +} + +static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, + int event) +{ + struct snd_soc_dapm_widget *w; + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + w = dai->playback_widget; + else + w = dai->capture_widget; + + if (w) { + dapm_mark_dirty(w, "stream event"); + + switch (event) { + case SND_SOC_DAPM_STREAM_START: + w->active = 1; + break; + case SND_SOC_DAPM_STREAM_STOP: + w->active = 0; + break; + case SND_SOC_DAPM_STREAM_SUSPEND: + case SND_SOC_DAPM_STREAM_RESUME: + case SND_SOC_DAPM_STREAM_PAUSE_PUSH: + case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: + break; + } + } +} + +static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, + int event) +{ + soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event); + soc_dapm_dai_stream_event(rtd->codec_dai, stream, event); + + dapm_power_widgets(rtd->card, event); +} /** * snd_soc_dapm_stream_event - send a stream event to the dapm core - * @codec: audio codec + * @rtd: PCM runtime data * @stream: stream name * @event: stream event * @@ -1381,148 +3465,410 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); * * Returns 0 for success else error. */ -int snd_soc_dapm_stream_event(struct snd_soc_codec *codec, - char *stream, int event) +void snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream, + int event) { - struct snd_soc_dapm_widget *w; + struct snd_soc_card *card = rtd->card; - if (stream == NULL) - return 0; + mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + soc_dapm_stream_event(rtd, stream, event); + mutex_unlock(&card->dapm_mutex); +} - mutex_lock(&codec->mutex); - list_for_each_entry(w, &codec->dapm_widgets, list) - { - if (!w->sname) - continue; - pr_debug("widget %s\n %s stream %s event %d\n", - w->name, w->sname, stream, event); - if (strstr(w->sname, stream)) { - switch(event) { - case SND_SOC_DAPM_STREAM_START: - w->active = 1; - break; - case SND_SOC_DAPM_STREAM_STOP: - w->active = 0; - break; - case SND_SOC_DAPM_STREAM_SUSPEND: - if (w->active) - w->suspend = 1; - w->active = 0; - break; - case SND_SOC_DAPM_STREAM_RESUME: - if (w->suspend) { - w->active = 1; - w->suspend = 0; - } - break; - case SND_SOC_DAPM_STREAM_PAUSE_PUSH: - break; - case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: - break; - } - } +/** + * snd_soc_dapm_enable_pin_unlocked - enable pin. + * @dapm: DAPM context + * @pin: pin name + * + * Enables input/output pin and its parents or children widgets iff there is + * a valid audio route and active audio stream. + * + * Requires external locking. + * + * 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_unlocked(struct snd_soc_dapm_context *dapm, + const char *pin) +{ + return snd_soc_dapm_set_pin(dapm, pin, 1); +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin_unlocked); + +/** + * snd_soc_dapm_enable_pin - enable pin. + * @dapm: DAPM context + * @pin: pin name + * + * 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_dapm_context *dapm, const char *pin) +{ + int ret; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + + ret = snd_soc_dapm_set_pin(dapm, pin, 1); + + mutex_unlock(&dapm->card->dapm_mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); + +/** + * snd_soc_dapm_force_enable_pin_unlocked - force a pin to be enabled + * @dapm: DAPM context + * @pin: pin name + * + * Enables input/output pin regardless of any other state. This is + * intended for use with microphone bias supplies used in microphone + * jack detection. + * + * Requires external locking. + * + * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to + * do any widget power switching. + */ +int snd_soc_dapm_force_enable_pin_unlocked(struct snd_soc_dapm_context *dapm, + const char *pin) +{ + struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); + + if (!w) { + dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); + return -EINVAL; } - mutex_unlock(&codec->mutex); - dapm_power_widgets(codec, event); - dump_dapm(codec, __func__); + dev_dbg(w->dapm->dev, "ASoC: force enable pin %s\n", pin); + w->connected = 1; + w->force = 1; + dapm_mark_dirty(w, "force enable"); + return 0; } -EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event); +EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin_unlocked); /** - * snd_soc_dapm_set_bias_level - set the bias level for the system - * @socdev: audio device - * @level: level to configure + * snd_soc_dapm_force_enable_pin - force a pin to be enabled + * @dapm: DAPM context + * @pin: pin name * - * Configure the bias (power) levels for the SoC audio device. + * Enables input/output pin regardless of any other state. This is + * intended for use with microphone bias supplies used in microphone + * jack detection. * - * Returns 0 for success else error. + * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to + * do any widget power switching. */ -int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev, - enum snd_soc_bias_level level) +int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, + const char *pin) { - struct snd_soc_codec *codec = socdev->codec; - struct snd_soc_machine *machine = socdev->machine; - int ret = 0; + int ret; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); - 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); + ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, pin); + + mutex_unlock(&dapm->card->dapm_mutex); return ret; } +EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); /** - * snd_soc_dapm_enable_pin - enable pin. - * @snd_soc_codec: SoC codec + * snd_soc_dapm_disable_pin_unlocked - disable pin. + * @dapm: DAPM context * @pin: pin name * - * Enables input/output pin and it's parents or children widgets iff there is - * a valid audio route and active audio stream. + * Disables input/output pin and its parents or children widgets. + * + * Requires external locking. + * * 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_disable_pin_unlocked(struct snd_soc_dapm_context *dapm, + const char *pin) { - return snd_soc_dapm_set_pin(codec, pin, 1); + return snd_soc_dapm_set_pin(dapm, pin, 0); } -EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); +EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin_unlocked); /** * snd_soc_dapm_disable_pin - disable pin. - * @codec: SoC codec + * @dapm: DAPM context * @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_dapm_context *dapm, + const char *pin) { - return snd_soc_dapm_set_pin(codec, pin, 0); + int ret; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + + ret = snd_soc_dapm_set_pin(dapm, pin, 0); + + mutex_unlock(&dapm->card->dapm_mutex); + + return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); /** + * snd_soc_dapm_nc_pin_unlocked - permanently disable pin. + * @dapm: DAPM context + * @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. + * + * Requires external locking. + * + * 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_unlocked(struct snd_soc_dapm_context *dapm, + const char *pin) +{ + return snd_soc_dapm_set_pin(dapm, pin, 0); +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin_unlocked); + +/** + * snd_soc_dapm_nc_pin - permanently disable pin. + * @dapm: DAPM context + * @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_dapm_context *dapm, const char *pin) +{ + int ret; + + mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); + + ret = snd_soc_dapm_set_pin(dapm, pin, 0); + + mutex_unlock(&dapm->card->dapm_mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); + +/** * snd_soc_dapm_get_pin_status - get audio pin status - * @codec: audio codec + * @dapm: DAPM context * @pin: audio signal pin endpoint (or start point) * * Get audio pin status - connected or disconnected. * * 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_dapm_context *dapm, + const char *pin) { - struct snd_soc_dapm_widget *w; + struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); - list_for_each_entry(w, &codec->dapm_widgets, list) { - if (!strcmp(w->name, pin)) - return w->connected; - } + if (w) + return w->connected; return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); /** + * snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint + * @dapm: DAPM context + * @pin: audio signal pin endpoint (or start point) + * + * Mark the given endpoint or pin as ignoring suspend. When the + * system is disabled a path between two endpoints flagged as ignoring + * suspend will not be disabled. The path must already be enabled via + * normal means at suspend time, it will not be turned on if it was not + * already enabled. + */ +int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, + const char *pin) +{ + struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); + + if (!w) { + dev_err(dapm->dev, "ASoC: unknown pin %s\n", pin); + return -EINVAL; + } + + w->ignore_suspend = 1; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); + +static bool snd_soc_dapm_widget_in_card_paths(struct snd_soc_card *card, + struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_path *p; + + list_for_each_entry(p, &card->paths, list) { + if ((p->source == w) || (p->sink == w)) { + dev_dbg(card->dev, + "... Path %s(id:%d dapm:%p) - %s(id:%d dapm:%p)\n", + p->source->name, p->source->id, p->source->dapm, + p->sink->name, p->sink->id, p->sink->dapm); + + /* Connected to something other than the codec */ + if (p->source->dapm != p->sink->dapm) + return true; + /* + * Loopback connection from codec external pin to + * codec external pin + */ + if (p->sink->id == snd_soc_dapm_input) { + switch (p->source->id) { + case snd_soc_dapm_output: + case snd_soc_dapm_micbias: + return true; + default: + break; + } + } + } + } + + return false; +} + +/** + * snd_soc_dapm_auto_nc_codec_pins - call snd_soc_dapm_nc_pin for unused pins + * @codec: The codec whose pins should be processed + * + * Automatically call snd_soc_dapm_nc_pin() for any external pins in the codec + * which are unused. Pins are used if they are connected externally to the + * codec, whether that be to some other device, or a loop-back connection to + * the codec itself. + */ +void snd_soc_dapm_auto_nc_codec_pins(struct snd_soc_codec *codec) +{ + struct snd_soc_card *card = codec->card; + struct snd_soc_dapm_context *dapm = &codec->dapm; + struct snd_soc_dapm_widget *w; + + dev_dbg(codec->dev, "ASoC: Auto NC: DAPMs: card:%p codec:%p\n", + &card->dapm, &codec->dapm); + + list_for_each_entry(w, &card->widgets, list) { + if (w->dapm != dapm) + continue; + switch (w->id) { + case snd_soc_dapm_input: + case snd_soc_dapm_output: + case snd_soc_dapm_micbias: + dev_dbg(codec->dev, "ASoC: Auto NC: Checking widget %s\n", + w->name); + if (!snd_soc_dapm_widget_in_card_paths(card, w)) { + dev_dbg(codec->dev, + "... Not in map; disabling\n"); + snd_soc_dapm_nc_pin(dapm, w->name); + } + break; + default: + break; + } + } +} + +/** * snd_soc_dapm_free - free dapm resources - * @socdev: SoC device + * @dapm: DAPM context * * Free all dapm widgets and resources. */ -void snd_soc_dapm_free(struct snd_soc_device *socdev) +void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) { - struct snd_soc_codec *codec = socdev->codec; - - snd_soc_dapm_sys_remove(socdev->dev); - dapm_free_widgets(codec); + snd_soc_dapm_sys_remove(dapm->dev); + dapm_debugfs_cleanup(dapm); + dapm_free_widgets(dapm); + list_del(&dapm->list); } EXPORT_SYMBOL_GPL(snd_soc_dapm_free); +static void soc_dapm_shutdown_dapm(struct snd_soc_dapm_context *dapm) +{ + struct snd_soc_card *card = dapm->card; + struct snd_soc_dapm_widget *w; + LIST_HEAD(down_list); + int powerdown = 0; + + mutex_lock(&card->dapm_mutex); + + list_for_each_entry(w, &dapm->card->widgets, list) { + if (w->dapm != dapm) + continue; + if (w->power) { + dapm_seq_insert(w, &down_list, false); + w->power = 0; + powerdown = 1; + } + } + + /* If there were no widgets to power down we're already in + * standby. + */ + if (powerdown) { + if (dapm->bias_level == SND_SOC_BIAS_ON) + snd_soc_dapm_set_bias_level(dapm, + SND_SOC_BIAS_PREPARE); + dapm_seq_run(card, &down_list, 0, false); + if (dapm->bias_level == SND_SOC_BIAS_PREPARE) + snd_soc_dapm_set_bias_level(dapm, + SND_SOC_BIAS_STANDBY); + } + + mutex_unlock(&card->dapm_mutex); +} + +/* + * snd_soc_dapm_shutdown - callback for system shutdown + */ +void snd_soc_dapm_shutdown(struct snd_soc_card *card) +{ + struct snd_soc_dapm_context *dapm; + + list_for_each_entry(dapm, &card->dapm_list, list) { + if (dapm != &card->dapm) { + soc_dapm_shutdown_dapm(dapm); + if (dapm->bias_level == SND_SOC_BIAS_STANDBY) + snd_soc_dapm_set_bias_level(dapm, + SND_SOC_BIAS_OFF); + } + } + + soc_dapm_shutdown_dapm(&card->dapm); + if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) + snd_soc_dapm_set_bias_level(&card->dapm, + SND_SOC_BIAS_OFF); +} + /* 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"); |