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sound/soc/soc-dapm.c
75.7 KB
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/* * soc-dapm.c -- ALSA SoC Dynamic Audio Power Management * * Copyright 2005 Wolfson Microelectronics PLC. |
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* Author: Liam Girdwood <lrg@slimlogic.co.uk> |
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* * 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 * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * |
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* Features: * o Changes power status of internal codec blocks depending on the * dynamic configuration of codec internal audio paths and active |
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* DACs/ADCs. |
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* o Platform power domain - can support external components i.e. amps and * mic/meadphone insertion events. * o Automatic Mic Bias support * o Jack insertion power event initiation - e.g. hp insertion will enable * sinks, dacs, etc |
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* o Delayed powerdown of audio susbsystem to reduce pops between a quick |
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* 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> |
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#include <linux/async.h> |
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#include <linux/delay.h> #include <linux/pm.h> #include <linux/bitops.h> #include <linux/platform_device.h> #include <linux/jiffies.h> |
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#include <linux/debugfs.h> |
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#include <linux/pm_runtime.h> |
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#include <linux/slab.h> |
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#include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/initval.h> |
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#include <trace/events/asoc.h> |
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#define DAPM_UPDATE_STAT(widget, val) widget->dapm->card->dapm_stats.val++; |
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/* dapm power sequences - make this per codec in the future */ static int dapm_up_seq[] = { |
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[snd_soc_dapm_pre] = 0, [snd_soc_dapm_supply] = 1, [snd_soc_dapm_micbias] = 2, |
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[snd_soc_dapm_aif_in] = 3, [snd_soc_dapm_aif_out] = 3, [snd_soc_dapm_mic] = 4, [snd_soc_dapm_mux] = 5, |
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[snd_soc_dapm_virt_mux] = 5, |
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[snd_soc_dapm_value_mux] = 5, [snd_soc_dapm_dac] = 6, [snd_soc_dapm_mixer] = 7, [snd_soc_dapm_mixer_named_ctl] = 7, [snd_soc_dapm_pga] = 8, [snd_soc_dapm_adc] = 9, |
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[snd_soc_dapm_out_drv] = 10, |
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[snd_soc_dapm_hp] = 10, [snd_soc_dapm_spk] = 10, [snd_soc_dapm_post] = 11, |
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}; |
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static int dapm_down_seq[] = { |
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[snd_soc_dapm_pre] = 0, [snd_soc_dapm_adc] = 1, [snd_soc_dapm_hp] = 2, |
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[snd_soc_dapm_spk] = 2, |
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[snd_soc_dapm_out_drv] = 2, |
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[snd_soc_dapm_pga] = 4, [snd_soc_dapm_mixer_named_ctl] = 5, |
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[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, |
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[snd_soc_dapm_virt_mux] = 9, |
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[snd_soc_dapm_value_mux] = 9, |
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[snd_soc_dapm_aif_in] = 10, [snd_soc_dapm_aif_out] = 10, [snd_soc_dapm_supply] = 11, [snd_soc_dapm_post] = 12, |
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}; |
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static void pop_wait(u32 pop_time) |
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{ if (pop_time) schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); } |
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static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) |
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{ va_list args; |
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char *buf; |
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if (!pop_time) return; |
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buf = kmalloc(PAGE_SIZE, GFP_KERNEL); if (buf == NULL) return; |
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va_start(args, fmt); vsnprintf(buf, PAGE_SIZE, fmt, args); |
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dev_info(dev, "%s", buf); |
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va_end(args); |
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kfree(buf); |
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} |
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static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w) { return !list_empty(&w->dirty); } |
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void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason) |
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{ |
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if (!dapm_dirty_widget(w)) { dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s ", w->name, reason); |
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list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty); |
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} |
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} |
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EXPORT_SYMBOL_GPL(dapm_mark_dirty); |
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/* create a new dapm widget */ |
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static inline struct snd_soc_dapm_widget *dapm_cnew_widget( |
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const struct snd_soc_dapm_widget *_widget) { |
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return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL); |
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} |
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/* get snd_card from DAPM context */ static inline struct snd_card *dapm_get_snd_card( struct snd_soc_dapm_context *dapm) { if (dapm->codec) return dapm->codec->card->snd_card; else if (dapm->platform) return dapm->platform->card->snd_card; else BUG(); /* unreachable */ return NULL; } /* get soc_card from DAPM context */ static inline struct snd_soc_card *dapm_get_soc_card( struct snd_soc_dapm_context *dapm) { if (dapm->codec) return dapm->codec->card; else if (dapm->platform) return dapm->platform->card; else BUG(); /* unreachable */ return NULL; } |
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static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) { if (w->codec) return snd_soc_read(w->codec, reg); |
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else if (w->platform) return snd_soc_platform_read(w->platform, reg); dev_err(w->dapm->dev, "no valid widget read method "); return -1; |
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} static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) { if (w->codec) return snd_soc_write(w->codec, reg, val); |
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else if (w->platform) return snd_soc_platform_write(w->platform, reg, val); dev_err(w->dapm->dev, "no valid widget write method "); return -1; |
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} static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, unsigned short reg, unsigned int mask, unsigned int value) { int change; unsigned int old, new; int ret; ret = soc_widget_read(w, reg); if (ret < 0) return ret; old = ret; new = (old & ~mask) | (value & mask); change = old != new; if (change) { ret = soc_widget_write(w, reg, new); if (ret < 0) return ret; } return change; } |
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/** * snd_soc_dapm_set_bias_level - set the bias level for the system |
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* @dapm: DAPM context |
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* @level: level to configure * * Configure the bias (power) levels for the SoC audio device. * * Returns 0 for success else error. */ |
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static int snd_soc_dapm_set_bias_level(struct snd_soc_dapm_context *dapm, |
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enum snd_soc_bias_level level) |
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{ |
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struct snd_soc_card *card = dapm->card; |
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int ret = 0; |
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trace_snd_soc_bias_level_start(card, level); |
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if (card && card->set_bias_level) |
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ret = card->set_bias_level(card, dapm, level); |
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if (ret != 0) goto out; |
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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; } |
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if (ret != 0) goto out; if (card && card->set_bias_level_post) |
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ret = card->set_bias_level_post(card, dapm, level); |
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out: |
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trace_snd_soc_bias_level_done(card, level); |
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return ret; } |
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/* set up initial codec paths */ static void dapm_set_path_status(struct snd_soc_dapm_widget *w, struct snd_soc_dapm_path *p, int i) { switch (w->id) { case snd_soc_dapm_switch: |
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case snd_soc_dapm_mixer: case snd_soc_dapm_mixer_named_ctl: { |
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int val; |
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struct soc_mixer_control *mc = (struct soc_mixer_control *) |
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w->kcontrol_news[i].private_value; |
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unsigned int reg = mc->reg; unsigned int shift = mc->shift; |
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int max = mc->max; |
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unsigned int mask = (1 << fls(max)) - 1; unsigned int invert = mc->invert; |
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val = soc_widget_read(w, reg); |
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val = (val >> shift) & mask; if ((invert && !val) || (!invert && val)) p->connect = 1; else p->connect = 0; } break; case snd_soc_dapm_mux: { |
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struct soc_enum *e = (struct soc_enum *) w->kcontrol_news[i].private_value; |
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int val, item, bitmask; |
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for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
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; |
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val = soc_widget_read(w, e->reg); |
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item = (val >> e->shift_l) & (bitmask - 1); p->connect = 0; |
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for (i = 0; i < e->max; i++) { |
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if (!(strcmp(p->name, e->texts[i])) && item == i) p->connect = 1; } } break; |
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case snd_soc_dapm_virt_mux: { |
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struct soc_enum *e = (struct soc_enum *) w->kcontrol_news[i].private_value; |
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p->connect = 0; /* 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. */ if (!strcmp(p->name, e->texts[0])) p->connect = 1; } break; |
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case snd_soc_dapm_value_mux: { |
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struct soc_enum *e = (struct soc_enum *) |
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w->kcontrol_news[i].private_value; |
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int val, item; |
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val = soc_widget_read(w, e->reg); |
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val = (val >> e->shift_l) & e->mask; for (item = 0; item < e->max; item++) { if (val == e->values[item]) break; } p->connect = 0; for (i = 0; i < e->max; i++) { if (!(strcmp(p->name, e->texts[i])) && item == i) p->connect = 1; } } break; |
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/* does not affect routing - always connected */ |
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case snd_soc_dapm_pga: |
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case snd_soc_dapm_out_drv: |
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case snd_soc_dapm_output: case snd_soc_dapm_adc: case snd_soc_dapm_input: |
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case snd_soc_dapm_siggen: |
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case snd_soc_dapm_dac: case snd_soc_dapm_micbias: case snd_soc_dapm_vmid: |
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case snd_soc_dapm_supply: |
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case snd_soc_dapm_aif_in: case snd_soc_dapm_aif_out: |
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case snd_soc_dapm_hp: case snd_soc_dapm_mic: case snd_soc_dapm_spk: case snd_soc_dapm_line: |
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p->connect = 1; break; /* does affect routing - dynamically connected */ |
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case snd_soc_dapm_pre: case snd_soc_dapm_post: p->connect = 0; break; } } |
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/* connect mux widget to its interconnecting audio paths */ |
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static int dapm_connect_mux(struct snd_soc_dapm_context *dapm, |
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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; int i; |
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for (i = 0; i < e->max; i++) { |
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if (!(strcmp(control_name, e->texts[i]))) { |
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list_add(&path->list, &dapm->card->paths); |
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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); return 0; } } return -ENODEV; } |
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/* connect mixer widget to its interconnecting audio paths */ |
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static int dapm_connect_mixer(struct snd_soc_dapm_context *dapm, |
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struct snd_soc_dapm_widget *src, struct snd_soc_dapm_widget *dest, struct snd_soc_dapm_path *path, const char *control_name) { int i; /* search for mixer kcontrol */ for (i = 0; i < dest->num_kcontrols; i++) { |
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if (!strcmp(control_name, dest->kcontrol_news[i].name)) { |
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list_add(&path->list, &dapm->card->paths); |
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list_add(&path->list_sink, &dest->sources); list_add(&path->list_source, &src->sinks); |
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path->name = dest->kcontrol_news[i].name; |
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dapm_set_path_status(dest, path, i); return 0; } } return -ENODEV; } |
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static int dapm_is_shared_kcontrol(struct snd_soc_dapm_context *dapm, |
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struct snd_soc_dapm_widget *kcontrolw, |
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const struct snd_kcontrol_new *kcontrol_new, struct snd_kcontrol **kcontrol) { struct snd_soc_dapm_widget *w; int i; *kcontrol = NULL; list_for_each_entry(w, &dapm->card->widgets, list) { |
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if (w == kcontrolw || w->dapm != kcontrolw->dapm) continue; |
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for (i = 0; i < w->num_kcontrols; i++) { if (&w->kcontrol_news[i] == kcontrol_new) { if (w->kcontrols) *kcontrol = w->kcontrols[i]; return 1; } } } return 0; } |
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/* create new dapm mixer control */ |
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static int dapm_new_mixer(struct snd_soc_dapm_widget *w) |
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{ |
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struct snd_soc_dapm_context *dapm = w->dapm; |
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int i, ret = 0; |
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size_t name_len, prefix_len; |
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struct snd_soc_dapm_path *path; |
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struct snd_card *card = dapm->card->snd_card; |
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const char *prefix; |
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struct snd_soc_dapm_widget_list *wlist; size_t wlistsize; |
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if (dapm->codec) prefix = dapm->codec->name_prefix; else prefix = NULL; |
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if (prefix) prefix_len = strlen(prefix) + 1; else prefix_len = 0; |
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/* 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 */ |
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if (path->name != (char *)w->kcontrol_news[i].name) |
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continue; |
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if (w->kcontrols[i]) { path->kcontrol = w->kcontrols[i]; continue; } |
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wlistsize = sizeof(struct snd_soc_dapm_widget_list) + sizeof(struct snd_soc_dapm_widget *), wlist = kzalloc(wlistsize, GFP_KERNEL); if (wlist == NULL) { dev_err(dapm->dev, "asoc: can't allocate widget list for %s ", w->name); return -ENOMEM; } wlist->num_widgets = 1; wlist->widgets[0] = w; |
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/* add dapm control with long name. * for dapm_mixer this is the concatenation of the * mixer and kcontrol name. * for dapm_mixer_named_ctl this is simply the * kcontrol name. */ |
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name_len = strlen(w->kcontrol_news[i].name) + 1; |
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if (w->id != snd_soc_dapm_mixer_named_ctl) |
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name_len += 1 + strlen(w->name); |
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path->long_name = kmalloc(name_len, GFP_KERNEL); |
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if (path->long_name == NULL) { kfree(wlist); |
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return -ENOMEM; |
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} |
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switch (w->id) { |
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default: |
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/* 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. */ |
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snprintf(path->long_name, name_len, "%s %s", |
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w->name + prefix_len, |
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w->kcontrol_news[i].name); |
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break; |
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case snd_soc_dapm_mixer_named_ctl: snprintf(path->long_name, name_len, "%s", |
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w->kcontrol_news[i].name); |
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break; |
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} |
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493 |
path->long_name[name_len - 1] = '\0'; |
fafd2176f
|
494 495 496 |
path->kcontrol = snd_soc_cnew(&w->kcontrol_news[i], wlist, path->long_name, prefix); |
ce6120cca
|
497 |
ret = snd_ctl_add(card, path->kcontrol); |
2b97eabc0
|
498 |
if (ret < 0) { |
f7d41ae83
|
499 500 501 502 |
dev_err(dapm->dev, "asoc: failed to add dapm kcontrol %s: %d ", path->long_name, ret); |
fafd2176f
|
503 |
kfree(wlist); |
2b97eabc0
|
504 505 506 507 |
kfree(path->long_name); path->long_name = NULL; return ret; } |
fad598887
|
508 |
w->kcontrols[i] = path->kcontrol; |
2b97eabc0
|
509 510 511 512 513 514 |
} } return ret; } /* create new dapm mux control */ |
4b80b8c2e
|
515 |
static int dapm_new_mux(struct snd_soc_dapm_widget *w) |
2b97eabc0
|
516 |
{ |
4b80b8c2e
|
517 |
struct snd_soc_dapm_context *dapm = w->dapm; |
2b97eabc0
|
518 519 |
struct snd_soc_dapm_path *path = NULL; struct snd_kcontrol *kcontrol; |
12ea2c782
|
520 |
struct snd_card *card = dapm->card->snd_card; |
efb7ac3f9
|
521 |
const char *prefix; |
3e5ff4dfa
|
522 |
size_t prefix_len; |
af46800b9
|
523 |
int ret; |
fafd2176f
|
524 |
struct snd_soc_dapm_widget_list *wlist; |
af46800b9
|
525 |
int shared, wlistentries; |
fafd2176f
|
526 |
size_t wlistsize; |
af46800b9
|
527 |
char *name; |
2b97eabc0
|
528 |
|
af46800b9
|
529 530 531 532 533 |
if (w->num_kcontrols != 1) { dev_err(dapm->dev, "asoc: mux %s has incorrect number of controls ", w->name); |
2b97eabc0
|
534 535 |
return -EINVAL; } |
1007da060
|
536 |
shared = dapm_is_shared_kcontrol(dapm, w, &w->kcontrol_news[0], |
af46800b9
|
537 538 539 540 541 542 543 544 |
&kcontrol); if (kcontrol) { wlist = kcontrol->private_data; wlistentries = wlist->num_widgets + 1; } else { wlist = NULL; wlistentries = 1; } |
fafd2176f
|
545 |
wlistsize = sizeof(struct snd_soc_dapm_widget_list) + |
af46800b9
|
546 547 |
wlistentries * sizeof(struct snd_soc_dapm_widget *), wlist = krealloc(wlist, wlistsize, GFP_KERNEL); |
fafd2176f
|
548 549 550 551 552 553 |
if (wlist == NULL) { dev_err(dapm->dev, "asoc: can't allocate widget list for %s ", w->name); return -ENOMEM; } |
af46800b9
|
554 555 |
wlist->num_widgets = wlistentries; wlist->widgets[wlistentries - 1] = w; |
efb7ac3f9
|
556 |
|
af46800b9
|
557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 |
if (!kcontrol) { if (dapm->codec) prefix = dapm->codec->name_prefix; else prefix = NULL; if (shared) { name = w->kcontrol_news[0].name; prefix_len = 0; } else { name = w->name; if (prefix) prefix_len = strlen(prefix) + 1; else prefix_len = 0; } |
3e5ff4dfa
|
573 |
|
af46800b9
|
574 575 576 577 578 579 580 581 582 |
/* * 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. */ kcontrol = snd_soc_cnew(&w->kcontrol_news[0], wlist, name + prefix_len, prefix); ret = snd_ctl_add(card, kcontrol); if (ret < 0) { |
53daf2089
|
583 584 585 |
dev_err(dapm->dev, "failed to add kcontrol %s: %d ", w->name, ret); |
af46800b9
|
586 587 588 589 |
kfree(wlist); return ret; } } |
ce6120cca
|
590 |
|
af46800b9
|
591 |
kcontrol->private_data = wlist; |
2b97eabc0
|
592 |
|
fad598887
|
593 |
w->kcontrols[0] = kcontrol; |
2b97eabc0
|
594 595 |
list_for_each_entry(path, &w->sources, list_sink) path->kcontrol = kcontrol; |
af46800b9
|
596 |
return 0; |
2b97eabc0
|
597 598 599 |
} /* create new dapm volume control */ |
4b80b8c2e
|
600 |
static int dapm_new_pga(struct snd_soc_dapm_widget *w) |
2b97eabc0
|
601 |
{ |
a6c65736b
|
602 |
if (w->num_kcontrols) |
f7d41ae83
|
603 604 605 |
dev_err(w->dapm->dev, "asoc: PGA controls not supported: '%s' ", w->name); |
2b97eabc0
|
606 |
|
a6c65736b
|
607 |
return 0; |
2b97eabc0
|
608 609 610 |
} /* reset 'walked' bit for each dapm path */ |
ce6120cca
|
611 |
static inline void dapm_clear_walk(struct snd_soc_dapm_context *dapm) |
2b97eabc0
|
612 613 |
{ struct snd_soc_dapm_path *p; |
8ddab3f51
|
614 |
list_for_each_entry(p, &dapm->card->paths, list) |
2b97eabc0
|
615 616 |
p->walked = 0; } |
9949788b7
|
617 618 619 620 621 622 |
/* 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) { |
12ea2c782
|
623 |
int level = snd_power_get_state(widget->dapm->card->snd_card); |
9949788b7
|
624 |
|
f0fba2ad1
|
625 |
switch (level) { |
9949788b7
|
626 627 |
case SNDRV_CTL_POWER_D3hot: case SNDRV_CTL_POWER_D3cold: |
1547aba99
|
628 |
if (widget->ignore_suspend) |
f7d41ae83
|
629 630 631 |
dev_dbg(widget->dapm->dev, "%s ignoring suspend ", widget->name); |
1547aba99
|
632 |
return widget->ignore_suspend; |
9949788b7
|
633 634 635 636 |
default: return 1; } } |
2b97eabc0
|
637 638 639 640 641 642 643 644 |
/* * 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) { struct snd_soc_dapm_path *path; int con = 0; |
024dc0785
|
645 646 |
if (widget->outputs >= 0) return widget->outputs; |
de02d0786
|
647 |
DAPM_UPDATE_STAT(widget, path_checks); |
246d0a17f
|
648 649 |
if (widget->id == snd_soc_dapm_supply) return 0; |
010ff2622
|
650 651 652 |
switch (widget->id) { case snd_soc_dapm_adc: case snd_soc_dapm_aif_out: |
024dc0785
|
653 654 655 656 |
if (widget->active) { widget->outputs = snd_soc_dapm_suspend_check(widget); return widget->outputs; } |
010ff2622
|
657 658 659 |
default: break; } |
2b97eabc0
|
660 661 662 |
if (widget->connected) { /* connected pin ? */ |
024dc0785
|
663 664 665 666 |
if (widget->id == snd_soc_dapm_output && !widget->ext) { widget->outputs = snd_soc_dapm_suspend_check(widget); return widget->outputs; } |
2b97eabc0
|
667 668 |
/* connected jack or spk ? */ |
024dc0785
|
669 670 671 672 673 674 675 |
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; } |
2b97eabc0
|
676 677 678 |
} list_for_each_entry(path, &widget->sinks, list_source) { |
e56235e09
|
679 |
DAPM_UPDATE_STAT(widget, neighbour_checks); |
bf3a9e137
|
680 681 |
if (path->weak) continue; |
2b97eabc0
|
682 683 684 685 686 687 688 689 |
if (path->walked) continue; if (path->sink && path->connect) { path->walked = 1; con += is_connected_output_ep(path->sink); } } |
024dc0785
|
690 |
widget->outputs = con; |
2b97eabc0
|
691 692 693 694 695 696 697 698 699 700 701 |
return con; } /* * 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) { struct snd_soc_dapm_path *path; int con = 0; |
024dc0785
|
702 703 |
if (widget->inputs >= 0) return widget->inputs; |
de02d0786
|
704 |
DAPM_UPDATE_STAT(widget, path_checks); |
246d0a17f
|
705 706 |
if (widget->id == snd_soc_dapm_supply) return 0; |
2b97eabc0
|
707 |
/* active stream ? */ |
010ff2622
|
708 709 710 |
switch (widget->id) { case snd_soc_dapm_dac: case snd_soc_dapm_aif_in: |
024dc0785
|
711 712 713 714 |
if (widget->active) { widget->inputs = snd_soc_dapm_suspend_check(widget); return widget->inputs; } |
010ff2622
|
715 716 717 |
default: break; } |
2b97eabc0
|
718 719 720 |
if (widget->connected) { /* connected pin ? */ |
024dc0785
|
721 722 723 724 |
if (widget->id == snd_soc_dapm_input && !widget->ext) { widget->inputs = snd_soc_dapm_suspend_check(widget); return widget->inputs; } |
2b97eabc0
|
725 726 |
/* connected VMID/Bias for lower pops */ |
024dc0785
|
727 728 729 730 |
if (widget->id == snd_soc_dapm_vmid) { widget->inputs = snd_soc_dapm_suspend_check(widget); return widget->inputs; } |
2b97eabc0
|
731 732 |
/* connected jack ? */ |
eaeae5d9b
|
733 |
if (widget->id == snd_soc_dapm_mic || |
024dc0785
|
734 735 736 737 738 |
(widget->id == snd_soc_dapm_line && !list_empty(&widget->sinks))) { widget->inputs = snd_soc_dapm_suspend_check(widget); return widget->inputs; } |
1ab97c8ca
|
739 740 741 742 743 |
/* signal generator */ if (widget->id == snd_soc_dapm_siggen) { widget->inputs = snd_soc_dapm_suspend_check(widget); return widget->inputs; } |
2b97eabc0
|
744 745 746 |
} list_for_each_entry(path, &widget->sources, list_sink) { |
e56235e09
|
747 |
DAPM_UPDATE_STAT(widget, neighbour_checks); |
bf3a9e137
|
748 749 |
if (path->weak) continue; |
2b97eabc0
|
750 751 752 753 754 755 756 757 |
if (path->walked) continue; if (path->source && path->connect) { path->walked = 1; con += is_connected_input_ep(path->source); } } |
024dc0785
|
758 |
widget->inputs = con; |
2b97eabc0
|
759 760 761 762 |
return con; } /* |
e2be2ccf9
|
763 764 765 766 767 768 769 770 771 772 773 |
* Handler for generic register modifier widget. */ int dapm_reg_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { unsigned int val; if (SND_SOC_DAPM_EVENT_ON(event)) val = w->on_val; else val = w->off_val; |
0445bdf4a
|
774 |
soc_widget_update_bits(w, -(w->reg + 1), |
e2be2ccf9
|
775 776 777 778 |
w->mask << w->shift, val << w->shift); return 0; } |
11589418a
|
779 |
EXPORT_SYMBOL_GPL(dapm_reg_event); |
e2be2ccf9
|
780 |
|
d805002be
|
781 782 |
static int dapm_widget_power_check(struct snd_soc_dapm_widget *w) { |
9b8a83b20
|
783 784 |
if (w->power_checked) return w->new_power; |
d805002be
|
785 |
if (w->force) |
9b8a83b20
|
786 |
w->new_power = 1; |
d805002be
|
787 |
else |
9b8a83b20
|
788 789 790 791 792 |
w->new_power = w->power_check(w); w->power_checked = true; return w->new_power; |
d805002be
|
793 |
} |
cd0f2d473
|
794 795 796 797 798 |
/* Generic check to see if a widget should be powered. */ static int dapm_generic_check_power(struct snd_soc_dapm_widget *w) { int in, out; |
de02d0786
|
799 |
DAPM_UPDATE_STAT(w, power_checks); |
cd0f2d473
|
800 |
in = is_connected_input_ep(w); |
ce6120cca
|
801 |
dapm_clear_walk(w->dapm); |
cd0f2d473
|
802 |
out = is_connected_output_ep(w); |
ce6120cca
|
803 |
dapm_clear_walk(w->dapm); |
cd0f2d473
|
804 805 |
return out != 0 && in != 0; } |
6ea31b9f0
|
806 807 808 809 |
/* Check to see if an ADC has power */ static int dapm_adc_check_power(struct snd_soc_dapm_widget *w) { int in; |
de02d0786
|
810 |
DAPM_UPDATE_STAT(w, power_checks); |
6ea31b9f0
|
811 812 |
if (w->active) { in = is_connected_input_ep(w); |
ce6120cca
|
813 |
dapm_clear_walk(w->dapm); |
6ea31b9f0
|
814 815 816 817 818 819 820 821 822 823 |
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; |
de02d0786
|
824 |
DAPM_UPDATE_STAT(w, power_checks); |
6ea31b9f0
|
825 826 |
if (w->active) { out = is_connected_output_ep(w); |
ce6120cca
|
827 |
dapm_clear_walk(w->dapm); |
6ea31b9f0
|
828 829 830 831 832 |
return out != 0; } else { return dapm_generic_check_power(w); } } |
246d0a17f
|
833 834 835 836 |
/* 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; |
246d0a17f
|
837 |
|
de02d0786
|
838 |
DAPM_UPDATE_STAT(w, power_checks); |
246d0a17f
|
839 840 |
/* Check if one of our outputs is connected */ list_for_each_entry(path, &w->sinks, list_source) { |
a8fdac83a
|
841 |
DAPM_UPDATE_STAT(w, neighbour_checks); |
bf3a9e137
|
842 843 |
if (path->weak) continue; |
215edda3a
|
844 845 846 |
if (path->connected && !path->connected(path->source, path->sink)) continue; |
3017358a7
|
847 848 |
if (!path->sink) continue; |
f68d7e168
|
849 850 |
if (dapm_widget_power_check(path->sink)) return 1; |
246d0a17f
|
851 |
} |
ce6120cca
|
852 |
dapm_clear_walk(w->dapm); |
246d0a17f
|
853 |
|
f68d7e168
|
854 |
return 0; |
246d0a17f
|
855 |
} |
35c64bcad
|
856 857 858 859 |
static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w) { return 1; } |
38357ab2c
|
860 861 |
static int dapm_seq_compare(struct snd_soc_dapm_widget *a, struct snd_soc_dapm_widget *b, |
828a842f2
|
862 |
bool power_up) |
42aa3418e
|
863 |
{ |
828a842f2
|
864 865 866 867 868 869 |
int *sort; if (power_up) sort = dapm_up_seq; else sort = dapm_down_seq; |
38357ab2c
|
870 871 |
if (sort[a->id] != sort[b->id]) return sort[a->id] - sort[b->id]; |
20e4859de
|
872 873 874 875 876 877 |
if (a->subseq != b->subseq) { if (power_up) return a->subseq - b->subseq; else return b->subseq - a->subseq; } |
b22ead2a5
|
878 879 |
if (a->reg != b->reg) return a->reg - b->reg; |
84dab5671
|
880 881 |
if (a->dapm != b->dapm) return (unsigned long)a->dapm - (unsigned long)b->dapm; |
42aa3418e
|
882 |
|
38357ab2c
|
883 884 |
return 0; } |
42aa3418e
|
885 |
|
38357ab2c
|
886 887 888 |
/* 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, |
828a842f2
|
889 |
bool power_up) |
38357ab2c
|
890 891 892 893 |
{ struct snd_soc_dapm_widget *w; list_for_each_entry(w, list, power_list) |
828a842f2
|
894 |
if (dapm_seq_compare(new_widget, w, power_up) < 0) { |
38357ab2c
|
895 896 897 898 899 900 |
list_add_tail(&new_widget->power_list, &w->power_list); return; } list_add_tail(&new_widget->power_list, list); } |
68f89ad8c
|
901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 |
static void dapm_seq_check_event(struct snd_soc_dapm_context *dapm, struct snd_soc_dapm_widget *w, int event) { struct snd_soc_card *card = dapm->card; 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; default: BUG(); return; } if (w->power != power) return; if (w->event && (w->event_flags & event)) { pop_dbg(dapm->dev, card->pop_time, "pop test : %s %s ", w->name, ev_name); |
84e909303
|
937 |
trace_snd_soc_dapm_widget_event_start(w, event); |
68f89ad8c
|
938 |
ret = w->event(w, NULL, event); |
84e909303
|
939 |
trace_snd_soc_dapm_widget_event_done(w, event); |
68f89ad8c
|
940 941 942 943 944 945 |
if (ret < 0) pr_err("%s: %s event failed: %d ", ev_name, w->name, ret); } } |
b22ead2a5
|
946 |
/* Apply the coalesced changes from a DAPM sequence */ |
ce6120cca
|
947 |
static void dapm_seq_run_coalesced(struct snd_soc_dapm_context *dapm, |
b22ead2a5
|
948 |
struct list_head *pending) |
163cac061
|
949 |
{ |
3a45b8672
|
950 |
struct snd_soc_card *card = dapm->card; |
68f89ad8c
|
951 952 |
struct snd_soc_dapm_widget *w; int reg, power; |
b22ead2a5
|
953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 |
unsigned int value = 0; unsigned int mask = 0; unsigned int cur_mask; reg = list_first_entry(pending, struct snd_soc_dapm_widget, power_list)->reg; list_for_each_entry(w, pending, power_list) { cur_mask = 1 << w->shift; BUG_ON(reg != w->reg); if (w->invert) power = !w->power; else power = w->power; mask |= cur_mask; if (power) value |= cur_mask; |
fd8d3bc09
|
972 |
pop_dbg(dapm->dev, card->pop_time, |
b22ead2a5
|
973 974 975 |
"pop test : Queue %s: reg=0x%x, 0x%x/0x%x ", w->name, reg, value, mask); |
81628103d
|
976 |
|
68f89ad8c
|
977 978 979 |
/* Check for events */ dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMU); dapm_seq_check_event(dapm, w, SND_SOC_DAPM_PRE_PMD); |
81628103d
|
980 981 982 |
} if (reg >= 0) { |
29376bc7e
|
983 984 985 986 987 |
/* Any widget will do, they should all be updating the * same register. */ w = list_first_entry(pending, struct snd_soc_dapm_widget, power_list); |
fd8d3bc09
|
988 |
pop_dbg(dapm->dev, card->pop_time, |
81628103d
|
989 990 |
"pop test : Applying 0x%x/0x%x to %x in %dms ", |
3a45b8672
|
991 992 |
value, mask, reg, card->pop_time); pop_wait(card->pop_time); |
0445bdf4a
|
993 |
soc_widget_update_bits(w, reg, mask, value); |
b22ead2a5
|
994 |
} |
81628103d
|
995 |
list_for_each_entry(w, pending, power_list) { |
68f89ad8c
|
996 997 |
dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMU); dapm_seq_check_event(dapm, w, SND_SOC_DAPM_POST_PMD); |
81628103d
|
998 |
} |
b22ead2a5
|
999 |
} |
42aa3418e
|
1000 |
|
b22ead2a5
|
1001 1002 1003 1004 1005 1006 1007 1008 |
/* 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. */ |
ce6120cca
|
1009 |
static void dapm_seq_run(struct snd_soc_dapm_context *dapm, |
828a842f2
|
1010 |
struct list_head *list, int event, bool power_up) |
b22ead2a5
|
1011 1012 1013 1014 |
{ struct snd_soc_dapm_widget *w, *n; LIST_HEAD(pending); int cur_sort = -1; |
20e4859de
|
1015 |
int cur_subseq = -1; |
b22ead2a5
|
1016 |
int cur_reg = SND_SOC_NOPM; |
7be31be88
|
1017 |
struct snd_soc_dapm_context *cur_dapm = NULL; |
474b62d6e
|
1018 |
int ret, i; |
828a842f2
|
1019 1020 1021 1022 1023 1024 |
int *sort; if (power_up) sort = dapm_up_seq; else sort = dapm_down_seq; |
163cac061
|
1025 |
|
b22ead2a5
|
1026 1027 1028 1029 |
list_for_each_entry_safe(w, n, list, power_list) { ret = 0; /* Do we need to apply any queued changes? */ |
7be31be88
|
1030 |
if (sort[w->id] != cur_sort || w->reg != cur_reg || |
20e4859de
|
1031 |
w->dapm != cur_dapm || w->subseq != cur_subseq) { |
b22ead2a5
|
1032 |
if (!list_empty(&pending)) |
7be31be88
|
1033 |
dapm_seq_run_coalesced(cur_dapm, &pending); |
b22ead2a5
|
1034 |
|
474b62d6e
|
1035 1036 1037 1038 |
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, |
f85a9e0d2
|
1039 1040 |
i, cur_subseq); |
474b62d6e
|
1041 |
} |
b22ead2a5
|
1042 1043 |
INIT_LIST_HEAD(&pending); cur_sort = -1; |
b0b3e6f86
|
1044 |
cur_subseq = INT_MIN; |
b22ead2a5
|
1045 |
cur_reg = SND_SOC_NOPM; |
7be31be88
|
1046 |
cur_dapm = NULL; |
b22ead2a5
|
1047 |
} |
163cac061
|
1048 1049 1050 |
switch (w->id) { case snd_soc_dapm_pre: if (!w->event) |
b22ead2a5
|
1051 1052 |
list_for_each_entry_safe_continue(w, n, list, power_list); |
163cac061
|
1053 |
|
b22ead2a5
|
1054 |
if (event == SND_SOC_DAPM_STREAM_START) |
163cac061
|
1055 1056 |
ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU); |
b22ead2a5
|
1057 |
else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac061
|
1058 1059 |
ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD); |
163cac061
|
1060 1061 1062 1063 |
break; case snd_soc_dapm_post: if (!w->event) |
b22ead2a5
|
1064 1065 |
list_for_each_entry_safe_continue(w, n, list, power_list); |
163cac061
|
1066 |
|
b22ead2a5
|
1067 |
if (event == SND_SOC_DAPM_STREAM_START) |
163cac061
|
1068 1069 |
ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMU); |
b22ead2a5
|
1070 |
else if (event == SND_SOC_DAPM_STREAM_STOP) |
163cac061
|
1071 1072 |
ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD); |
163cac061
|
1073 |
break; |
b22ead2a5
|
1074 |
default: |
81628103d
|
1075 1076 |
/* Queue it up for application */ cur_sort = sort[w->id]; |
20e4859de
|
1077 |
cur_subseq = w->subseq; |
81628103d
|
1078 |
cur_reg = w->reg; |
7be31be88
|
1079 |
cur_dapm = w->dapm; |
81628103d
|
1080 1081 |
list_move(&w->power_list, &pending); break; |
163cac061
|
1082 |
} |
b22ead2a5
|
1083 1084 |
if (ret < 0) |
f7d41ae83
|
1085 1086 1087 |
dev_err(w->dapm->dev, "Failed to apply widget power: %d ", ret); |
6ea31b9f0
|
1088 |
} |
b22ead2a5
|
1089 1090 |
if (!list_empty(&pending)) |
28e868081
|
1091 |
dapm_seq_run_coalesced(cur_dapm, &pending); |
474b62d6e
|
1092 1093 1094 1095 1096 |
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, |
f85a9e0d2
|
1097 |
i, cur_subseq); |
474b62d6e
|
1098 |
} |
42aa3418e
|
1099 |
} |
97404f2e0
|
1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 |
static void dapm_widget_update(struct snd_soc_dapm_context *dapm) { struct snd_soc_dapm_update *update = dapm->update; struct snd_soc_dapm_widget *w; int ret; if (!update) return; w = update->widget; 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) pr_err("%s DAPM pre-event failed: %d ", w->name, ret); } ret = snd_soc_update_bits(w->codec, update->reg, update->mask, update->val); if (ret < 0) pr_err("%s DAPM update failed: %d ", w->name, ret); 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) pr_err("%s DAPM post-event failed: %d ", w->name, ret); } } |
9d0624a74
|
1135 1136 1137 1138 1139 1140 1141 |
/* 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; |
56fba41f8
|
1142 1143 1144 |
/* 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) { |
f1aac484f
|
1145 1146 |
if (d->dev) pm_runtime_get_sync(d->dev); |
9d0624a74
|
1147 1148 1149 1150 1151 1152 |
ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); if (ret != 0) dev_err(d->dev, "Failed to turn on bias: %d ", ret); } |
56fba41f8
|
1153 1154 |
/* Prepare for a STADDBY->ON or ON->STANDBY transition */ if (d->bias_level != d->target_bias_level) { |
9d0624a74
|
1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 |
ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_PREPARE); if (ret != 0) dev_err(d->dev, "Failed to prepare bias: %d ", 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 */ |
56fba41f8
|
1172 1173 1174 |
if (d->bias_level == SND_SOC_BIAS_PREPARE && (d->target_bias_level == SND_SOC_BIAS_STANDBY || d->target_bias_level == SND_SOC_BIAS_OFF)) { |
9d0624a74
|
1175 1176 1177 1178 1179 1180 |
ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_STANDBY); if (ret != 0) dev_err(d->dev, "Failed to apply standby bias: %d ", ret); } |
97404f2e0
|
1181 |
|
9d0624a74
|
1182 |
/* If we're in standby and can support bias off then do that */ |
56fba41f8
|
1183 1184 |
if (d->bias_level == SND_SOC_BIAS_STANDBY && d->target_bias_level == SND_SOC_BIAS_OFF) { |
9d0624a74
|
1185 1186 1187 1188 |
ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_OFF); if (ret != 0) dev_err(d->dev, "Failed to turn off bias: %d ", ret); |
f1aac484f
|
1189 1190 1191 |
if (d->dev) pm_runtime_put_sync(d->dev); |
9d0624a74
|
1192 1193 1194 |
} /* If we just powered up then move to active bias */ |
56fba41f8
|
1195 1196 |
if (d->bias_level == SND_SOC_BIAS_PREPARE && d->target_bias_level == SND_SOC_BIAS_ON) { |
9d0624a74
|
1197 1198 1199 1200 1201 1202 1203 |
ret = snd_soc_dapm_set_bias_level(d, SND_SOC_BIAS_ON); if (ret != 0) dev_err(d->dev, "Failed to apply active bias: %d ", ret); } } |
97404f2e0
|
1204 |
|
fe4fda5d8
|
1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 |
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) |
75c1f891b
|
1217 |
dapm_mark_dirty(peer, "peer state change"); |
fe4fda5d8
|
1218 |
} |
05623c431
|
1219 1220 1221 1222 |
static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power, struct list_head *up_list, struct list_head *down_list) { |
db432b414
|
1223 |
struct snd_soc_dapm_path *path; |
05623c431
|
1224 1225 1226 1227 |
if (w->power == power) return; trace_snd_soc_dapm_widget_power(w, power); |
db432b414
|
1228 |
/* If we changed our power state perhaps our neigbours changed |
fe4fda5d8
|
1229 |
* also. |
db432b414
|
1230 1231 1232 |
*/ list_for_each_entry(path, &w->sources, list_sink) { if (path->source) { |
fe4fda5d8
|
1233 1234 |
dapm_widget_set_peer_power(path->source, power, path->connect); |
db432b414
|
1235 1236 |
} } |
f3bf3e456
|
1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 |
switch (w->id) { case snd_soc_dapm_supply: /* 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); } |
db432b414
|
1247 |
} |
f3bf3e456
|
1248 |
break; |
db432b414
|
1249 |
} |
05623c431
|
1250 1251 1252 1253 1254 1255 1256 |
if (power) dapm_seq_insert(w, up_list, true); else dapm_seq_insert(w, down_list, false); w->power = power; } |
7c81beb04
|
1257 1258 1259 1260 |
static void dapm_power_one_widget(struct snd_soc_dapm_widget *w, struct list_head *up_list, struct list_head *down_list) { |
7c81beb04
|
1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 |
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: |
d805002be
|
1272 |
power = dapm_widget_power_check(w); |
7c81beb04
|
1273 |
|
05623c431
|
1274 |
dapm_widget_set_power(w, power, up_list, down_list); |
7c81beb04
|
1275 1276 1277 |
break; } } |
42aa3418e
|
1278 |
/* |
2b97eabc0
|
1279 1280 1281 1282 1283 1284 1285 1286 |
* 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). */ |
ce6120cca
|
1287 |
static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event) |
2b97eabc0
|
1288 |
{ |
12ea2c782
|
1289 |
struct snd_soc_card *card = dapm->card; |
2b97eabc0
|
1290 |
struct snd_soc_dapm_widget *w; |
7be31be88
|
1291 |
struct snd_soc_dapm_context *d; |
291f3bbca
|
1292 1293 |
LIST_HEAD(up_list); LIST_HEAD(down_list); |
9d0624a74
|
1294 |
LIST_HEAD(async_domain); |
56fba41f8
|
1295 |
enum snd_soc_bias_level bias; |
6d3ddc81f
|
1296 |
|
84e909303
|
1297 |
trace_snd_soc_dapm_start(card); |
56fba41f8
|
1298 1299 1300 1301 1302 1303 1304 1305 |
list_for_each_entry(d, &card->dapm_list, list) { if (d->n_widgets || d->codec == NULL) { if (d->idle_bias_off) d->target_bias_level = SND_SOC_BIAS_OFF; else d->target_bias_level = SND_SOC_BIAS_STANDBY; } } |
7be31be88
|
1306 |
|
de02d0786
|
1307 |
memset(&card->dapm_stats, 0, sizeof(card->dapm_stats)); |
9b8a83b20
|
1308 1309 |
list_for_each_entry(w, &card->widgets, list) { w->power_checked = false; |
024dc0785
|
1310 1311 |
w->inputs = -1; w->outputs = -1; |
9b8a83b20
|
1312 |
} |
6d3ddc81f
|
1313 |
/* Check which widgets we need to power and store them in |
db432b414
|
1314 1315 1316 1317 |
* 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. |
6d3ddc81f
|
1318 |
*/ |
db432b414
|
1319 |
list_for_each_entry(w, &card->dapm_dirty, dirty) { |
7c81beb04
|
1320 |
dapm_power_one_widget(w, &up_list, &down_list); |
2b97eabc0
|
1321 |
} |
f9de6d741
|
1322 |
list_for_each_entry(w, &card->widgets, list) { |
db432b414
|
1323 |
list_del_init(&w->dirty); |
f9de6d741
|
1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 |
if (w->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. */ switch (w->id) { case snd_soc_dapm_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; } } } |
b14b76a56
|
1345 1346 1347 |
/* If there are no DAPM widgets then try to figure out power from the * event type. */ |
97c866def
|
1348 |
if (!dapm->n_widgets) { |
b14b76a56
|
1349 1350 1351 |
switch (event) { case SND_SOC_DAPM_STREAM_START: case SND_SOC_DAPM_STREAM_RESUME: |
56fba41f8
|
1352 |
dapm->target_bias_level = SND_SOC_BIAS_ON; |
b14b76a56
|
1353 |
break; |
862af8adb
|
1354 |
case SND_SOC_DAPM_STREAM_STOP: |
56fba41f8
|
1355 1356 1357 1358 |
if (dapm->codec->active) dapm->target_bias_level = SND_SOC_BIAS_ON; else dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
862af8adb
|
1359 |
break; |
50b6bce59
|
1360 |
case SND_SOC_DAPM_STREAM_SUSPEND: |
56fba41f8
|
1361 |
dapm->target_bias_level = SND_SOC_BIAS_STANDBY; |
50b6bce59
|
1362 |
break; |
b14b76a56
|
1363 |
case SND_SOC_DAPM_STREAM_NOP: |
56fba41f8
|
1364 |
dapm->target_bias_level = dapm->bias_level; |
50b6bce59
|
1365 |
break; |
b14b76a56
|
1366 1367 1368 1369 |
default: break; } } |
85a843c50
|
1370 1371 1372 |
/* Force all contexts in the card to the same bias state if * they're not ground referenced. */ |
56fba41f8
|
1373 |
bias = SND_SOC_BIAS_OFF; |
52ba67bf8
|
1374 |
list_for_each_entry(d, &card->dapm_list, list) |
56fba41f8
|
1375 1376 |
if (d->target_bias_level > bias) bias = d->target_bias_level; |
52ba67bf8
|
1377 |
list_for_each_entry(d, &card->dapm_list, list) |
85a843c50
|
1378 1379 |
if (!d->idle_bias_off) d->target_bias_level = bias; |
52ba67bf8
|
1380 |
|
de02d0786
|
1381 |
trace_snd_soc_dapm_walk_done(card); |
52ba67bf8
|
1382 |
|
9d0624a74
|
1383 1384 1385 1386 1387 |
/* Run all the bias changes in parallel */ list_for_each_entry(d, &dapm->card->dapm_list, list) async_schedule_domain(dapm_pre_sequence_async, d, &async_domain); async_synchronize_full_domain(&async_domain); |
452c5eaa0
|
1388 |
|
6d3ddc81f
|
1389 |
/* Power down widgets first; try to avoid amplifying pops. */ |
828a842f2
|
1390 |
dapm_seq_run(dapm, &down_list, event, false); |
2b97eabc0
|
1391 |
|
97404f2e0
|
1392 |
dapm_widget_update(dapm); |
6d3ddc81f
|
1393 |
/* Now power up. */ |
828a842f2
|
1394 |
dapm_seq_run(dapm, &up_list, event, true); |
2b97eabc0
|
1395 |
|
9d0624a74
|
1396 1397 1398 1399 1400 |
/* Run all the bias changes in parallel */ list_for_each_entry(d, &dapm->card->dapm_list, list) async_schedule_domain(dapm_post_sequence_async, d, &async_domain); async_synchronize_full_domain(&async_domain); |
452c5eaa0
|
1401 |
|
fd8d3bc09
|
1402 1403 1404 |
pop_dbg(dapm->dev, card->pop_time, "DAPM sequencing finished, waiting %dms ", card->pop_time); |
3a45b8672
|
1405 |
pop_wait(card->pop_time); |
cb507e7e7
|
1406 |
|
84e909303
|
1407 |
trace_snd_soc_dapm_done(card); |
42aa3418e
|
1408 |
return 0; |
2b97eabc0
|
1409 |
} |
79fb9387f
|
1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 |
#ifdef CONFIG_DEBUG_FS static int dapm_widget_power_open_file(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } 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); |
ce6120cca
|
1432 |
dapm_clear_walk(w->dapm); |
79fb9387f
|
1433 |
out = is_connected_output_ep(w); |
ce6120cca
|
1434 |
dapm_clear_walk(w->dapm); |
79fb9387f
|
1435 |
|
d033c36ae
|
1436 |
ret = snprintf(buf, PAGE_SIZE, "%s: %s in %d out %d", |
79fb9387f
|
1437 |
w->name, w->power ? "On" : "Off", in, out); |
d033c36ae
|
1438 1439 1440 1441 1442 1443 1444 |
if (w->reg >= 0) ret += snprintf(buf + ret, PAGE_SIZE - ret, " - R%d(0x%x) bit %d", w->reg, w->reg, w->shift); ret += snprintf(buf + ret, PAGE_SIZE - ret, " "); |
3eef08ba5
|
1445 1446 1447 1448 1449 |
if (w->sname) ret += snprintf(buf + ret, PAGE_SIZE - ret, " stream %s %s ", w->sname, w->active ? "active" : "inactive"); |
79fb9387f
|
1450 1451 |
list_for_each_entry(p, &w->sources, list_sink) { |
215edda3a
|
1452 1453 |
if (p->connected && !p->connected(w, p->sink)) continue; |
79fb9387f
|
1454 1455 |
if (p->connect) ret += snprintf(buf + ret, PAGE_SIZE - ret, |
67f5ed6e7
|
1456 1457 |
" in \"%s\" \"%s\" ", |
79fb9387f
|
1458 1459 1460 1461 |
p->name ? p->name : "static", p->source->name); } list_for_each_entry(p, &w->sinks, list_source) { |
215edda3a
|
1462 1463 |
if (p->connected && !p->connected(w, p->sink)) continue; |
79fb9387f
|
1464 1465 |
if (p->connect) ret += snprintf(buf + ret, PAGE_SIZE - ret, |
67f5ed6e7
|
1466 1467 |
" out \"%s\" \"%s\" ", |
79fb9387f
|
1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 |
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 = dapm_widget_power_open_file, .read = dapm_widget_power_read_file, |
6038f373a
|
1481 |
.llseek = default_llseek, |
79fb9387f
|
1482 |
}; |
ef49e4fae
|
1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 |
static int dapm_bias_open_file(struct inode *inode, struct file *file) { file->private_data = inode->i_private; return 0; } 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 "; break; case SND_SOC_BIAS_PREPARE: level = "Prepare "; break; case SND_SOC_BIAS_STANDBY: level = "Standby "; break; case SND_SOC_BIAS_OFF: level = "Off "; break; default: BUG(); level = "Unknown "; break; } return simple_read_from_buffer(user_buf, count, ppos, level, strlen(level)); } static const struct file_operations dapm_bias_fops = { .open = dapm_bias_open_file, .read = dapm_bias_read_file, .llseek = default_llseek, }; |
8eecaf624
|
1528 1529 |
void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, struct dentry *parent) |
79fb9387f
|
1530 |
{ |
79fb9387f
|
1531 |
struct dentry *d; |
8eecaf624
|
1532 1533 1534 1535 1536 1537 |
dapm->debugfs_dapm = debugfs_create_dir("dapm", parent); if (!dapm->debugfs_dapm) { printk(KERN_WARNING "Failed to create DAPM debugfs directory "); |
79fb9387f
|
1538 |
return; |
8eecaf624
|
1539 |
} |
79fb9387f
|
1540 |
|
ef49e4fae
|
1541 1542 1543 1544 1545 1546 1547 |
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 "); |
d5d1e0bef
|
1548 |
} |
ef49e4fae
|
1549 |
|
d5d1e0bef
|
1550 1551 1552 1553 |
static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) { struct snd_soc_dapm_context *dapm = w->dapm; struct dentry *d; |
79fb9387f
|
1554 |
|
d5d1e0bef
|
1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 |
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 ", w->name); |
79fb9387f
|
1566 |
} |
d5d1e0bef
|
1567 |
|
6c45e1265
|
1568 1569 1570 1571 |
static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) { debugfs_remove_recursive(dapm->debugfs_dapm); } |
79fb9387f
|
1572 |
#else |
8eecaf624
|
1573 1574 |
void snd_soc_dapm_debugfs_init(struct snd_soc_dapm_context *dapm, struct dentry *parent) |
79fb9387f
|
1575 1576 |
{ } |
d5d1e0bef
|
1577 1578 1579 1580 |
static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) { } |
6c45e1265
|
1581 1582 1583 |
static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) { } |
79fb9387f
|
1584 |
#endif |
2b97eabc0
|
1585 |
/* test and update the power status of a mux widget */ |
d9c96cf35
|
1586 |
static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, |
3a65577d2
|
1587 1588 |
struct snd_kcontrol *kcontrol, int change, int mux, struct soc_enum *e) |
2b97eabc0
|
1589 1590 1591 |
{ struct snd_soc_dapm_path *path; int found = 0; |
eff317d08
|
1592 |
if (widget->id != snd_soc_dapm_mux && |
24ff33ac6
|
1593 |
widget->id != snd_soc_dapm_virt_mux && |
eff317d08
|
1594 |
widget->id != snd_soc_dapm_value_mux) |
2b97eabc0
|
1595 |
return -ENODEV; |
3a65577d2
|
1596 |
if (!change) |
2b97eabc0
|
1597 1598 1599 |
return 0; /* find dapm widget path assoc with kcontrol */ |
8ddab3f51
|
1600 |
list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc0
|
1601 1602 |
if (path->kcontrol != kcontrol) continue; |
cb01e2b99
|
1603 |
if (!path->name || !e->texts[mux]) |
2b97eabc0
|
1604 1605 1606 1607 |
continue; found = 1; /* we now need to match the string in the enum to the path */ |
db432b414
|
1608 |
if (!(strcmp(path->name, e->texts[mux]))) { |
2b97eabc0
|
1609 |
path->connect = 1; /* new connection */ |
75c1f891b
|
1610 |
dapm_mark_dirty(path->source, "mux connection"); |
db432b414
|
1611 1612 |
} else { if (path->connect) |
75c1f891b
|
1613 1614 |
dapm_mark_dirty(path->source, "mux disconnection"); |
2b97eabc0
|
1615 |
path->connect = 0; /* old connection must be powered down */ |
db432b414
|
1616 |
} |
2b97eabc0
|
1617 |
} |
db432b414
|
1618 |
if (found) { |
75c1f891b
|
1619 |
dapm_mark_dirty(widget, "mux change"); |
ce6120cca
|
1620 |
dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b414
|
1621 |
} |
2b97eabc0
|
1622 1623 1624 |
return 0; } |
2b97eabc0
|
1625 |
|
1b075e3f7
|
1626 |
/* test and update the power status of a mixer or switch widget */ |
d9c96cf35
|
1627 |
static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget, |
283375cef
|
1628 |
struct snd_kcontrol *kcontrol, int connect) |
2b97eabc0
|
1629 1630 1631 |
{ struct snd_soc_dapm_path *path; int found = 0; |
1b075e3f7
|
1632 |
if (widget->id != snd_soc_dapm_mixer && |
ca9c1aaec
|
1633 |
widget->id != snd_soc_dapm_mixer_named_ctl && |
1b075e3f7
|
1634 |
widget->id != snd_soc_dapm_switch) |
2b97eabc0
|
1635 |
return -ENODEV; |
2b97eabc0
|
1636 |
/* find dapm widget path assoc with kcontrol */ |
8ddab3f51
|
1637 |
list_for_each_entry(path, &widget->dapm->card->paths, list) { |
2b97eabc0
|
1638 1639 1640 1641 1642 |
if (path->kcontrol != kcontrol) continue; /* found, now check type */ found = 1; |
283375cef
|
1643 |
path->connect = connect; |
75c1f891b
|
1644 |
dapm_mark_dirty(path->source, "mixer connection"); |
2b97eabc0
|
1645 |
} |
db432b414
|
1646 |
if (found) { |
75c1f891b
|
1647 |
dapm_mark_dirty(widget, "mixer update"); |
ce6120cca
|
1648 |
dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP); |
db432b414
|
1649 |
} |
2b97eabc0
|
1650 1651 1652 |
return 0; } |
2b97eabc0
|
1653 1654 1655 1656 1657 |
/* show dapm widget status in sys fs */ static ssize_t dapm_widget_show(struct device *dev, struct device_attribute *attr, char *buf) { |
36ae1a96c
|
1658 |
struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev); |
f0fba2ad1
|
1659 |
struct snd_soc_codec *codec =rtd->codec; |
2b97eabc0
|
1660 1661 1662 |
struct snd_soc_dapm_widget *w; int count = 0; char *state = "not set"; |
97c866def
|
1663 1664 1665 |
list_for_each_entry(w, &codec->card->widgets, list) { if (w->dapm != &codec->dapm) continue; |
2b97eabc0
|
1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 |
/* only display widgets that burnm power */ switch (w->id) { 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: |
d88429a69
|
1677 |
case snd_soc_dapm_out_drv: |
2b97eabc0
|
1678 |
case snd_soc_dapm_mixer: |
ca9c1aaec
|
1679 |
case snd_soc_dapm_mixer_named_ctl: |
246d0a17f
|
1680 |
case snd_soc_dapm_supply: |
2b97eabc0
|
1681 1682 1683 1684 1685 1686 1687 1688 1689 |
if (w->name) count += sprintf(buf + count, "%s: %s ", w->name, w->power ? "On":"Off"); break; default: break; } } |
ce6120cca
|
1690 |
switch (codec->dapm.bias_level) { |
0be9898ad
|
1691 1692 |
case SND_SOC_BIAS_ON: state = "On"; |
2b97eabc0
|
1693 |
break; |
0be9898ad
|
1694 1695 |
case SND_SOC_BIAS_PREPARE: state = "Prepare"; |
2b97eabc0
|
1696 |
break; |
0be9898ad
|
1697 1698 |
case SND_SOC_BIAS_STANDBY: state = "Standby"; |
2b97eabc0
|
1699 |
break; |
0be9898ad
|
1700 1701 |
case SND_SOC_BIAS_OFF: state = "Off"; |
2b97eabc0
|
1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 |
break; } count += sprintf(buf + count, "PM State: %s ", state); return count; } static DEVICE_ATTR(dapm_widget, 0444, dapm_widget_show, NULL); int snd_soc_dapm_sys_add(struct device *dev) { |
12ef193d5
|
1714 |
return device_create_file(dev, &dev_attr_dapm_widget); |
2b97eabc0
|
1715 1716 1717 1718 |
} static void snd_soc_dapm_sys_remove(struct device *dev) { |
aef908434
|
1719 |
device_remove_file(dev, &dev_attr_dapm_widget); |
2b97eabc0
|
1720 1721 1722 |
} /* free all dapm widgets and resources */ |
ce6120cca
|
1723 |
static void dapm_free_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc0
|
1724 1725 1726 |
{ struct snd_soc_dapm_widget *w, *next_w; struct snd_soc_dapm_path *p, *next_p; |
97c866def
|
1727 1728 1729 |
list_for_each_entry_safe(w, next_w, &dapm->card->widgets, list) { if (w->dapm != dapm) continue; |
2b97eabc0
|
1730 |
list_del(&w->list); |
8ddab3f51
|
1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 |
/* * 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) { list_del(&p->list_sink); list_del(&p->list_source); list_del(&p->list); kfree(p->long_name); kfree(p); } list_for_each_entry_safe(p, next_p, &w->sinks, list_source) { list_del(&p->list_sink); list_del(&p->list_source); list_del(&p->list); kfree(p->long_name); kfree(p); } |
fad598887
|
1750 |
kfree(w->kcontrols); |
ead9b9199
|
1751 |
kfree(w->name); |
2b97eabc0
|
1752 1753 |
kfree(w); } |
2b97eabc0
|
1754 |
} |
91a5fca4b
|
1755 1756 1757 |
static struct snd_soc_dapm_widget *dapm_find_widget( struct snd_soc_dapm_context *dapm, const char *pin, bool search_other_contexts) |
a5302181e
|
1758 1759 |
{ struct snd_soc_dapm_widget *w; |
91a5fca4b
|
1760 |
struct snd_soc_dapm_widget *fallback = NULL; |
a5302181e
|
1761 |
|
97c866def
|
1762 |
list_for_each_entry(w, &dapm->card->widgets, list) { |
a5302181e
|
1763 |
if (!strcmp(w->name, pin)) { |
91a5fca4b
|
1764 1765 1766 1767 |
if (w->dapm == dapm) return w; else fallback = w; |
a5302181e
|
1768 1769 |
} } |
91a5fca4b
|
1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 |
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); if (!w) { dev_err(dapm->dev, "dapm: unknown pin %s ", pin); return -EINVAL; |
0d86733cc
|
1785 |
} |
91a5fca4b
|
1786 1787 1788 |
w->connected = status; if (status == 0) w->force = 0; |
75c1f891b
|
1789 |
dapm_mark_dirty(w, "pin configuration"); |
91a5fca4b
|
1790 1791 |
return 0; |
a5302181e
|
1792 |
} |
2b97eabc0
|
1793 |
/** |
a5302181e
|
1794 |
* snd_soc_dapm_sync - scan and power dapm paths |
ce6120cca
|
1795 |
* @dapm: DAPM context |
2b97eabc0
|
1796 1797 1798 1799 1800 1801 |
* * Walks all dapm audio paths and powers widgets according to their * stream or path usage. * * Returns 0 for success. */ |
ce6120cca
|
1802 |
int snd_soc_dapm_sync(struct snd_soc_dapm_context *dapm) |
2b97eabc0
|
1803 |
{ |
4f4c00722
|
1804 1805 1806 1807 1808 1809 |
/* * Suppress early reports (eg, jacks syncing their state) to avoid * silly DAPM runs during card startup. */ if (!dapm->card || !dapm->card->instantiated) return 0; |
ce6120cca
|
1810 |
return dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc0
|
1811 |
} |
a5302181e
|
1812 |
EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); |
2b97eabc0
|
1813 |
|
ce6120cca
|
1814 |
static int snd_soc_dapm_add_route(struct snd_soc_dapm_context *dapm, |
215edda3a
|
1815 |
const struct snd_soc_dapm_route *route) |
2b97eabc0
|
1816 1817 1818 |
{ struct snd_soc_dapm_path *path; struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; |
97c866def
|
1819 |
struct snd_soc_dapm_widget *wtsource = NULL, *wtsink = NULL; |
ead9b9199
|
1820 |
const char *sink; |
215edda3a
|
1821 |
const char *control = route->control; |
ead9b9199
|
1822 1823 1824 |
const char *source; char prefixed_sink[80]; char prefixed_source[80]; |
2b97eabc0
|
1825 |
int ret = 0; |
88e8b9a84
|
1826 |
if (dapm->codec && dapm->codec->name_prefix) { |
ead9b9199
|
1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 |
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; } |
97c866def
|
1837 1838 1839 1840 1841 |
/* * 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) { |
2b97eabc0
|
1842 |
if (!wsink && !(strcmp(w->name, sink))) { |
97c866def
|
1843 1844 1845 |
wtsink = w; if (w->dapm == dapm) wsink = w; |
2b97eabc0
|
1846 1847 1848 |
continue; } if (!wsource && !(strcmp(w->name, source))) { |
97c866def
|
1849 1850 1851 |
wtsource = w; if (w->dapm == dapm) wsource = w; |
2b97eabc0
|
1852 1853 |
} } |
97c866def
|
1854 1855 1856 1857 1858 |
/* use widget from another DAPM context if not found from this */ if (!wsink) wsink = wtsink; if (!wsource) wsource = wtsource; |
2b97eabc0
|
1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 |
if (wsource == NULL || wsink == NULL) return -ENODEV; path = kzalloc(sizeof(struct snd_soc_dapm_path), GFP_KERNEL); if (!path) return -ENOMEM; path->source = wsource; path->sink = wsink; |
215edda3a
|
1869 |
path->connected = route->connected; |
2b97eabc0
|
1870 1871 1872 1873 1874 1875 1876 1877 |
INIT_LIST_HEAD(&path->list); INIT_LIST_HEAD(&path->list_source); INIT_LIST_HEAD(&path->list_sink); /* check for external widgets */ if (wsink->id == snd_soc_dapm_input) { if (wsource->id == snd_soc_dapm_micbias || wsource->id == snd_soc_dapm_mic || |
087d53ab1
|
1878 1879 |
wsource->id == snd_soc_dapm_line || wsource->id == snd_soc_dapm_output) |
2b97eabc0
|
1880 1881 1882 1883 1884 |
wsink->ext = 1; } if (wsource->id == snd_soc_dapm_output) { if (wsink->id == snd_soc_dapm_spk || wsink->id == snd_soc_dapm_hp || |
1e39221eb
|
1885 1886 |
wsink->id == snd_soc_dapm_line || wsink->id == snd_soc_dapm_input) |
2b97eabc0
|
1887 1888 1889 1890 1891 |
wsource->ext = 1; } /* connect static paths */ if (control == NULL) { |
8ddab3f51
|
1892 |
list_add(&path->list, &dapm->card->paths); |
2b97eabc0
|
1893 1894 1895 1896 1897 1898 1899 |
list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 1; return 0; } /* connect dynamic paths */ |
dc2bea616
|
1900 |
switch (wsink->id) { |
2b97eabc0
|
1901 1902 1903 |
case snd_soc_dapm_adc: case snd_soc_dapm_dac: case snd_soc_dapm_pga: |
d88429a69
|
1904 |
case snd_soc_dapm_out_drv: |
2b97eabc0
|
1905 1906 |
case snd_soc_dapm_input: case snd_soc_dapm_output: |
1ab97c8ca
|
1907 |
case snd_soc_dapm_siggen: |
2b97eabc0
|
1908 1909 1910 1911 |
case snd_soc_dapm_micbias: case snd_soc_dapm_vmid: case snd_soc_dapm_pre: case snd_soc_dapm_post: |
246d0a17f
|
1912 |
case snd_soc_dapm_supply: |
010ff2622
|
1913 1914 |
case snd_soc_dapm_aif_in: case snd_soc_dapm_aif_out: |
8ddab3f51
|
1915 |
list_add(&path->list, &dapm->card->paths); |
2b97eabc0
|
1916 1917 1918 1919 1920 |
list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 1; return 0; case snd_soc_dapm_mux: |
24ff33ac6
|
1921 |
case snd_soc_dapm_virt_mux: |
741555568
|
1922 |
case snd_soc_dapm_value_mux: |
ce6120cca
|
1923 |
ret = dapm_connect_mux(dapm, wsource, wsink, path, control, |
82cfecdc0
|
1924 |
&wsink->kcontrol_news[0]); |
2b97eabc0
|
1925 1926 1927 1928 1929 |
if (ret != 0) goto err; break; case snd_soc_dapm_switch: case snd_soc_dapm_mixer: |
ca9c1aaec
|
1930 |
case snd_soc_dapm_mixer_named_ctl: |
ce6120cca
|
1931 |
ret = dapm_connect_mixer(dapm, wsource, wsink, path, control); |
2b97eabc0
|
1932 1933 1934 1935 1936 1937 1938 |
if (ret != 0) goto err; break; case snd_soc_dapm_hp: case snd_soc_dapm_mic: case snd_soc_dapm_line: case snd_soc_dapm_spk: |
8ddab3f51
|
1939 |
list_add(&path->list, &dapm->card->paths); |
2b97eabc0
|
1940 1941 1942 1943 1944 1945 1946 1947 |
list_add(&path->list_sink, &wsink->sources); list_add(&path->list_source, &wsource->sinks); path->connect = 0; return 0; } return 0; err: |
f7d41ae83
|
1948 1949 1950 |
dev_warn(dapm->dev, "asoc: no dapm match for %s --> %s --> %s ", source, control, sink); |
2b97eabc0
|
1951 1952 1953 |
kfree(path); return ret; } |
105f1c284
|
1954 1955 |
/** |
105f1c284
|
1956 |
* snd_soc_dapm_add_routes - Add routes between DAPM widgets |
ce6120cca
|
1957 |
* @dapm: DAPM context |
105f1c284
|
1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 |
* @route: audio routes * @num: number of routes * * 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. * * Returns 0 for success else error. On error all resources can be freed * with a call to snd_soc_card_free(). */ |
ce6120cca
|
1968 |
int snd_soc_dapm_add_routes(struct snd_soc_dapm_context *dapm, |
105f1c284
|
1969 1970 1971 1972 1973 |
const struct snd_soc_dapm_route *route, int num) { int i, ret; for (i = 0; i < num; i++) { |
ce6120cca
|
1974 |
ret = snd_soc_dapm_add_route(dapm, route); |
105f1c284
|
1975 |
if (ret < 0) { |
f7d41ae83
|
1976 1977 1978 |
dev_err(dapm->dev, "Failed to add route %s->%s ", route->source, route->sink); |
105f1c284
|
1979 1980 1981 1982 1983 1984 1985 1986 |
return ret; } route++; } return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_add_routes); |
bf3a9e137
|
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 |
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, "Unable to find source %s for weak route ", route->source); return -ENODEV; } if (!sink) { dev_err(dapm->dev, "Unable to find sink %s for weak route ", route->sink); return -ENODEV; } if (route->control || route->connected) dev_warn(dapm->dev, "Ignoring control for weak route %s->%s ", 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, "No path found for weak route %s->%s ", route->source, route->sink); if (count > 1) dev_warn(dapm->dev, "%d paths found for weak route %s->%s ", 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; for (i = 0; i < num; i++) { err = snd_soc_dapm_weak_route(dapm, route); if (err) ret = err; route++; } return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_weak_routes); |
105f1c284
|
2069 |
/** |
2b97eabc0
|
2070 |
* snd_soc_dapm_new_widgets - add new dapm widgets |
ce6120cca
|
2071 |
* @dapm: DAPM context |
2b97eabc0
|
2072 2073 2074 2075 2076 |
* * Checks the codec for any new dapm widgets and creates them if found. * * Returns 0 for success. */ |
ce6120cca
|
2077 |
int snd_soc_dapm_new_widgets(struct snd_soc_dapm_context *dapm) |
2b97eabc0
|
2078 2079 |
{ struct snd_soc_dapm_widget *w; |
b66a70d5e
|
2080 |
unsigned int val; |
2b97eabc0
|
2081 |
|
97c866def
|
2082 |
list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc0
|
2083 2084 2085 |
{ if (w->new) continue; |
fad598887
|
2086 2087 2088 2089 2090 2091 2092 |
if (w->num_kcontrols) { w->kcontrols = kzalloc(w->num_kcontrols * sizeof(struct snd_kcontrol *), GFP_KERNEL); if (!w->kcontrols) return -ENOMEM; } |
2b97eabc0
|
2093 2094 2095 |
switch(w->id) { case snd_soc_dapm_switch: case snd_soc_dapm_mixer: |
ca9c1aaec
|
2096 |
case snd_soc_dapm_mixer_named_ctl: |
4b80b8c2e
|
2097 |
dapm_new_mixer(w); |
2b97eabc0
|
2098 2099 |
break; case snd_soc_dapm_mux: |
24ff33ac6
|
2100 |
case snd_soc_dapm_virt_mux: |
2e72f8e37
|
2101 |
case snd_soc_dapm_value_mux: |
4b80b8c2e
|
2102 |
dapm_new_mux(w); |
2b97eabc0
|
2103 |
break; |
2b97eabc0
|
2104 |
case snd_soc_dapm_pga: |
d88429a69
|
2105 |
case snd_soc_dapm_out_drv: |
4b80b8c2e
|
2106 |
dapm_new_pga(w); |
2b97eabc0
|
2107 |
break; |
7ca3a18b0
|
2108 |
default: |
2b97eabc0
|
2109 2110 |
break; } |
b66a70d5e
|
2111 2112 2113 |
/* Read the initial power state from the device */ if (w->reg >= 0) { |
0445bdf4a
|
2114 |
val = soc_widget_read(w, w->reg); |
b66a70d5e
|
2115 2116 2117 2118 2119 2120 2121 |
val &= 1 << w->shift; if (w->invert) val = !val; if (val) w->power = 1; } |
2b97eabc0
|
2122 |
w->new = 1; |
d5d1e0bef
|
2123 |
|
7508b12a8
|
2124 |
dapm_mark_dirty(w, "new widget"); |
d5d1e0bef
|
2125 |
dapm_debugfs_add_widget(w); |
2b97eabc0
|
2126 |
} |
ce6120cca
|
2127 |
dapm_power_widgets(dapm, SND_SOC_DAPM_STREAM_NOP); |
2b97eabc0
|
2128 2129 2130 2131 2132 2133 2134 |
return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_widgets); /** * snd_soc_dapm_get_volsw - dapm mixer get callback * @kcontrol: mixer control |
ac11a2b35
|
2135 |
* @ucontrol: control element information |
2b97eabc0
|
2136 2137 2138 2139 2140 2141 2142 2143 |
* * Callback to get the value of a dapm mixer control. * * Returns 0 for success. */ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2144 2145 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; |
4eaa9819d
|
2146 2147 |
struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; |
815ecf8de
|
2148 2149 2150 |
unsigned int reg = mc->reg; unsigned int shift = mc->shift; unsigned int rshift = mc->rshift; |
4eaa9819d
|
2151 |
int max = mc->max; |
815ecf8de
|
2152 2153 |
unsigned int invert = mc->invert; unsigned int mask = (1 << fls(max)) - 1; |
2b97eabc0
|
2154 |
|
2b97eabc0
|
2155 2156 2157 2158 2159 2160 2161 |
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] = |
a7a4ac86b
|
2162 |
max - ucontrol->value.integer.value[0]; |
2b97eabc0
|
2163 2164 |
if (shift != rshift) ucontrol->value.integer.value[1] = |
a7a4ac86b
|
2165 |
max - ucontrol->value.integer.value[1]; |
2b97eabc0
|
2166 2167 2168 2169 2170 2171 2172 2173 2174 |
} return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw); /** * snd_soc_dapm_put_volsw - dapm mixer set callback * @kcontrol: mixer control |
ac11a2b35
|
2175 |
* @ucontrol: control element information |
2b97eabc0
|
2176 2177 2178 2179 2180 2181 2182 2183 |
* * Callback to set the value of a dapm mixer control. * * Returns 0 for success. */ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2184 2185 2186 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; struct snd_soc_codec *codec = widget->codec; |
4eaa9819d
|
2187 2188 |
struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; |
815ecf8de
|
2189 2190 |
unsigned int reg = mc->reg; unsigned int shift = mc->shift; |
4eaa9819d
|
2191 |
int max = mc->max; |
815ecf8de
|
2192 2193 |
unsigned int mask = (1 << fls(max)) - 1; unsigned int invert = mc->invert; |
e9cf70493
|
2194 |
unsigned int val; |
97404f2e0
|
2195 2196 |
int connect, change; struct snd_soc_dapm_update update; |
fafd2176f
|
2197 |
int wi; |
2b97eabc0
|
2198 2199 2200 2201 |
val = (ucontrol->value.integer.value[0] & mask); if (invert) |
a7a4ac86b
|
2202 |
val = max - val; |
e9cf70493
|
2203 |
mask = mask << shift; |
2b97eabc0
|
2204 |
val = val << shift; |
2b97eabc0
|
2205 |
|
fafd2176f
|
2206 2207 2208 2209 2210 2211 2212 2213 |
if (val) /* new connection */ connect = invert ? 0 : 1; else /* old connection must be powered down */ connect = invert ? 1 : 0; mutex_lock(&codec->mutex); |
2b97eabc0
|
2214 |
|
e9cf70493
|
2215 |
change = snd_soc_test_bits(widget->codec, reg, mask, val); |
97404f2e0
|
2216 |
if (change) { |
fafd2176f
|
2217 2218 |
for (wi = 0; wi < wlist->num_widgets; wi++) { widget = wlist->widgets[wi]; |
283375cef
|
2219 |
|
fafd2176f
|
2220 |
widget->value = val; |
97404f2e0
|
2221 |
|
fafd2176f
|
2222 2223 2224 2225 2226 2227 |
update.kcontrol = kcontrol; update.widget = widget; update.reg = reg; update.mask = mask; update.val = val; widget->dapm->update = &update; |
97404f2e0
|
2228 |
|
fafd2176f
|
2229 2230 2231 2232 |
dapm_mixer_update_power(widget, kcontrol, connect); widget->dapm->update = NULL; } |
283375cef
|
2233 |
} |
fafd2176f
|
2234 |
mutex_unlock(&codec->mutex); |
97404f2e0
|
2235 |
return 0; |
2b97eabc0
|
2236 2237 2238 2239 2240 2241 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_put_volsw); /** * snd_soc_dapm_get_enum_double - dapm enumerated double mixer get callback * @kcontrol: mixer control |
ac11a2b35
|
2242 |
* @ucontrol: control element information |
2b97eabc0
|
2243 2244 2245 2246 2247 2248 2249 2250 |
* * Callback to get the value of a dapm enumerated double mixer control. * * Returns 0 for success. */ int snd_soc_dapm_get_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2251 2252 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; |
2b97eabc0
|
2253 |
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f7
|
2254 |
unsigned int val, bitmask; |
2b97eabc0
|
2255 |
|
f8ba0b7bf
|
2256 |
for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc0
|
2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 |
; 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); return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double); /** * snd_soc_dapm_put_enum_double - dapm enumerated double mixer set callback * @kcontrol: mixer control |
ac11a2b35
|
2271 |
* @ucontrol: control element information |
2b97eabc0
|
2272 2273 2274 2275 2276 2277 2278 2279 |
* * Callback to set the value of a dapm enumerated double mixer control. * * Returns 0 for success. */ int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2280 2281 2282 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; struct snd_soc_codec *codec = widget->codec; |
2b97eabc0
|
2283 |
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d2
|
2284 |
unsigned int val, mux, change; |
46f5822f7
|
2285 |
unsigned int mask, bitmask; |
97404f2e0
|
2286 |
struct snd_soc_dapm_update update; |
fafd2176f
|
2287 |
int wi; |
2b97eabc0
|
2288 |
|
f8ba0b7bf
|
2289 |
for (bitmask = 1; bitmask < e->max; bitmask <<= 1) |
2b97eabc0
|
2290 |
; |
f8ba0b7bf
|
2291 |
if (ucontrol->value.enumerated.item[0] > e->max - 1) |
2b97eabc0
|
2292 2293 2294 2295 2296 |
return -EINVAL; mux = ucontrol->value.enumerated.item[0]; val = mux << e->shift_l; mask = (bitmask - 1) << e->shift_l; if (e->shift_l != e->shift_r) { |
f8ba0b7bf
|
2297 |
if (ucontrol->value.enumerated.item[1] > e->max - 1) |
2b97eabc0
|
2298 2299 2300 2301 |
return -EINVAL; val |= ucontrol->value.enumerated.item[1] << e->shift_r; mask |= (bitmask - 1) << e->shift_r; } |
fafd2176f
|
2302 |
mutex_lock(&codec->mutex); |
3a65577d2
|
2303 |
change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176f
|
2304 2305 2306 2307 2308 |
if (change) { for (wi = 0; wi < wlist->num_widgets; wi++) { widget = wlist->widgets[wi]; widget->value = val; |
1642e3d42
|
2309 |
|
fafd2176f
|
2310 2311 2312 2313 2314 2315 |
update.kcontrol = kcontrol; update.widget = widget; update.reg = e->reg; update.mask = mask; update.val = val; widget->dapm->update = &update; |
1642e3d42
|
2316 |
|
fafd2176f
|
2317 |
dapm_mux_update_power(widget, kcontrol, change, mux, e); |
1642e3d42
|
2318 |
|
fafd2176f
|
2319 2320 2321 |
widget->dapm->update = NULL; } } |
2b97eabc0
|
2322 |
|
fafd2176f
|
2323 |
mutex_unlock(&codec->mutex); |
97404f2e0
|
2324 |
return change; |
2b97eabc0
|
2325 2326 2327 2328 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_double); /** |
d2b247a8b
|
2329 2330 2331 2332 2333 2334 2335 2336 2337 |
* snd_soc_dapm_get_enum_virt - Get virtual DAPM mux * @kcontrol: mixer control * @ucontrol: control element information * * Returns 0 for success. */ int snd_soc_dapm_get_enum_virt(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2338 2339 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; |
d2b247a8b
|
2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 |
ucontrol->value.enumerated.item[0] = widget->value; return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_virt); /** * snd_soc_dapm_put_enum_virt - Set virtual DAPM mux * @kcontrol: mixer control * @ucontrol: control element information * * Returns 0 for success. */ int snd_soc_dapm_put_enum_virt(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2357 2358 2359 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; struct snd_soc_codec *codec = widget->codec; |
d2b247a8b
|
2360 2361 2362 2363 |
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; int change; int ret = 0; |
fafd2176f
|
2364 |
int wi; |
d2b247a8b
|
2365 2366 2367 |
if (ucontrol->value.enumerated.item[0] >= e->max) return -EINVAL; |
fafd2176f
|
2368 |
mutex_lock(&codec->mutex); |
d2b247a8b
|
2369 2370 |
change = widget->value != ucontrol->value.enumerated.item[0]; |
fafd2176f
|
2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 |
if (change) { for (wi = 0; wi < wlist->num_widgets; wi++) { widget = wlist->widgets[wi]; widget->value = ucontrol->value.enumerated.item[0]; dapm_mux_update_power(widget, kcontrol, change, widget->value, e); } } |
d2b247a8b
|
2381 |
|
fafd2176f
|
2382 |
mutex_unlock(&codec->mutex); |
d2b247a8b
|
2383 2384 2385 2386 2387 |
return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_put_enum_virt); /** |
2e72f8e37
|
2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 |
* snd_soc_dapm_get_value_enum_double - dapm semi enumerated double mixer get * callback * @kcontrol: mixer control * @ucontrol: control element information * * Callback to get the value of a dapm semi enumerated double mixer control. * * Semi enumerated mixer: the enumerated items are referred as values. Can be * used for handling bitfield coded enumeration for example. * * Returns 0 for success. */ int snd_soc_dapm_get_value_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2403 2404 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; |
741555568
|
2405 |
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
46f5822f7
|
2406 |
unsigned int reg_val, val, mux; |
2e72f8e37
|
2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 |
reg_val = snd_soc_read(widget->codec, e->reg); val = (reg_val >> e->shift_l) & e->mask; for (mux = 0; mux < e->max; mux++) { if (val == e->values[mux]) break; } ucontrol->value.enumerated.item[0] = mux; if (e->shift_l != e->shift_r) { val = (reg_val >> e->shift_r) & e->mask; for (mux = 0; mux < e->max; mux++) { if (val == e->values[mux]) break; } ucontrol->value.enumerated.item[1] = mux; } return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_value_enum_double); /** * snd_soc_dapm_put_value_enum_double - dapm semi enumerated double mixer set * callback * @kcontrol: mixer control * @ucontrol: control element information * * Callback to set the value of a dapm semi enumerated double mixer control. * * Semi enumerated mixer: the enumerated items are referred as values. Can be * used for handling bitfield coded enumeration for example. * * Returns 0 for success. */ int snd_soc_dapm_put_value_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { |
fafd2176f
|
2444 2445 2446 |
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol); struct snd_soc_dapm_widget *widget = wlist->widgets[0]; struct snd_soc_codec *codec = widget->codec; |
741555568
|
2447 |
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
3a65577d2
|
2448 |
unsigned int val, mux, change; |
46f5822f7
|
2449 |
unsigned int mask; |
97404f2e0
|
2450 |
struct snd_soc_dapm_update update; |
fafd2176f
|
2451 |
int wi; |
2e72f8e37
|
2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 |
if (ucontrol->value.enumerated.item[0] > e->max - 1) return -EINVAL; mux = ucontrol->value.enumerated.item[0]; val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l; mask = e->mask << e->shift_l; if (e->shift_l != e->shift_r) { if (ucontrol->value.enumerated.item[1] > e->max - 1) return -EINVAL; val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r; mask |= e->mask << e->shift_r; } |
fafd2176f
|
2464 |
mutex_lock(&codec->mutex); |
3a65577d2
|
2465 |
change = snd_soc_test_bits(widget->codec, e->reg, mask, val); |
fafd2176f
|
2466 2467 2468 |
if (change) { for (wi = 0; wi < wlist->num_widgets; wi++) { widget = wlist->widgets[wi]; |
1642e3d42
|
2469 |
|
fafd2176f
|
2470 |
widget->value = val; |
1642e3d42
|
2471 |
|
fafd2176f
|
2472 2473 2474 2475 2476 2477 |
update.kcontrol = kcontrol; update.widget = widget; update.reg = e->reg; update.mask = mask; update.val = val; widget->dapm->update = &update; |
1642e3d42
|
2478 |
|
fafd2176f
|
2479 2480 2481 2482 2483 |
dapm_mux_update_power(widget, kcontrol, change, mux, e); widget->dapm->update = NULL; } } |
2e72f8e37
|
2484 |
|
fafd2176f
|
2485 |
mutex_unlock(&codec->mutex); |
97404f2e0
|
2486 |
return change; |
2e72f8e37
|
2487 2488 2489 2490 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_put_value_enum_double); /** |
8b37dbd2a
|
2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 |
* snd_soc_dapm_info_pin_switch - Info for a pin switch * * @kcontrol: mixer control * @uinfo: control element information * * Callback to provide information about a pin switch control. */ int snd_soc_dapm_info_pin_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = 1; return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_info_pin_switch); /** * snd_soc_dapm_get_pin_switch - Get information for a pin switch * * @kcontrol: mixer control * @ucontrol: Value */ int snd_soc_dapm_get_pin_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); const char *pin = (const char *)kcontrol->private_value; mutex_lock(&codec->mutex); ucontrol->value.integer.value[0] = |
ce6120cca
|
2525 |
snd_soc_dapm_get_pin_status(&codec->dapm, pin); |
8b37dbd2a
|
2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 |
mutex_unlock(&codec->mutex); return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_switch); /** * snd_soc_dapm_put_pin_switch - Set information for a pin switch * * @kcontrol: mixer control * @ucontrol: Value */ int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); const char *pin = (const char *)kcontrol->private_value; mutex_lock(&codec->mutex); if (ucontrol->value.integer.value[0]) |
ce6120cca
|
2548 |
snd_soc_dapm_enable_pin(&codec->dapm, pin); |
8b37dbd2a
|
2549 |
else |
ce6120cca
|
2550 |
snd_soc_dapm_disable_pin(&codec->dapm, pin); |
8b37dbd2a
|
2551 |
|
ce6120cca
|
2552 |
snd_soc_dapm_sync(&codec->dapm); |
8b37dbd2a
|
2553 2554 2555 2556 2557 2558 2559 2560 |
mutex_unlock(&codec->mutex); return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); /** |
2b97eabc0
|
2561 |
* snd_soc_dapm_new_control - create new dapm control |
ce6120cca
|
2562 |
* @dapm: DAPM context |
2b97eabc0
|
2563 2564 2565 2566 2567 2568 |
* @widget: widget template * * Creates a new dapm control based upon the template. * * Returns 0 for success else error. */ |
ce6120cca
|
2569 |
int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, |
2b97eabc0
|
2570 2571 2572 |
const struct snd_soc_dapm_widget *widget) { struct snd_soc_dapm_widget *w; |
ead9b9199
|
2573 |
size_t name_len; |
2b97eabc0
|
2574 2575 2576 |
if ((w = dapm_cnew_widget(widget)) == NULL) return -ENOMEM; |
ead9b9199
|
2577 |
name_len = strlen(widget->name) + 1; |
88e8b9a84
|
2578 |
if (dapm->codec && dapm->codec->name_prefix) |
ead9b9199
|
2579 2580 2581 2582 2583 2584 |
name_len += 1 + strlen(dapm->codec->name_prefix); w->name = kmalloc(name_len, GFP_KERNEL); if (w->name == NULL) { kfree(w); return -ENOMEM; } |
88e8b9a84
|
2585 |
if (dapm->codec && dapm->codec->name_prefix) |
ead9b9199
|
2586 2587 2588 2589 |
snprintf(w->name, name_len, "%s %s", dapm->codec->name_prefix, widget->name); else snprintf(w->name, name_len, "%s", widget->name); |
7ca3a18b0
|
2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 |
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: case snd_soc_dapm_virt_mux: case snd_soc_dapm_value_mux: w->power_check = dapm_generic_check_power; break; case snd_soc_dapm_adc: case snd_soc_dapm_aif_out: w->power_check = dapm_adc_check_power; break; case snd_soc_dapm_dac: case snd_soc_dapm_aif_in: w->power_check = dapm_dac_check_power; break; 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: w->power_check = dapm_generic_check_power; break; case snd_soc_dapm_supply: w->power_check = dapm_supply_check_power; break; default: w->power_check = dapm_always_on_check_power; break; } |
97c866def
|
2627 |
dapm->n_widgets++; |
ce6120cca
|
2628 2629 |
w->dapm = dapm; w->codec = dapm->codec; |
b79506413
|
2630 |
w->platform = dapm->platform; |
2b97eabc0
|
2631 2632 2633 |
INIT_LIST_HEAD(&w->sources); INIT_LIST_HEAD(&w->sinks); INIT_LIST_HEAD(&w->list); |
db432b414
|
2634 |
INIT_LIST_HEAD(&w->dirty); |
97c866def
|
2635 |
list_add(&w->list, &dapm->card->widgets); |
2b97eabc0
|
2636 2637 2638 2639 2640 2641 2642 2643 |
/* machine layer set ups unconnected pins and insertions */ w->connected = 1; return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_control); /** |
4ba1327ab
|
2644 |
* snd_soc_dapm_new_controls - create new dapm controls |
ce6120cca
|
2645 |
* @dapm: DAPM context |
4ba1327ab
|
2646 2647 2648 2649 2650 2651 2652 |
* @widget: widget array * @num: number of widgets * * Creates new DAPM controls based upon the templates. * * Returns 0 for success else error. */ |
ce6120cca
|
2653 |
int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm, |
4ba1327ab
|
2654 2655 2656 2657 2658 2659 |
const struct snd_soc_dapm_widget *widget, int num) { int i, ret; for (i = 0; i < num; i++) { |
ce6120cca
|
2660 |
ret = snd_soc_dapm_new_control(dapm, widget); |
b8b33cb56
|
2661 |
if (ret < 0) { |
f7d41ae83
|
2662 2663 2664 2665 |
dev_err(dapm->dev, "ASoC: Failed to create DAPM control %s: %d ", widget->name, ret); |
4ba1327ab
|
2666 |
return ret; |
b8b33cb56
|
2667 |
} |
4ba1327ab
|
2668 2669 2670 2671 2672 |
widget++; } return 0; } EXPORT_SYMBOL_GPL(snd_soc_dapm_new_controls); |
ce6120cca
|
2673 |
static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm, |
f0fba2ad1
|
2674 |
const char *stream, int event) |
2b97eabc0
|
2675 2676 |
{ struct snd_soc_dapm_widget *w; |
97c866def
|
2677 |
list_for_each_entry(w, &dapm->card->widgets, list) |
2b97eabc0
|
2678 |
{ |
97c866def
|
2679 |
if (!w->sname || w->dapm != dapm) |
2b97eabc0
|
2680 |
continue; |
ee47b3648
|
2681 2682 2683 |
dev_vdbg(w->dapm->dev, "widget %s %s stream %s event %d ", |
f7d41ae83
|
2684 |
w->name, w->sname, stream, event); |
2b97eabc0
|
2685 |
if (strstr(w->sname, stream)) { |
75c1f891b
|
2686 |
dapm_mark_dirty(w, "stream event"); |
2b97eabc0
|
2687 2688 2689 2690 2691 2692 2693 2694 |
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: |
2b97eabc0
|
2695 |
case SND_SOC_DAPM_STREAM_RESUME: |
2b97eabc0
|
2696 |
case SND_SOC_DAPM_STREAM_PAUSE_PUSH: |
2b97eabc0
|
2697 2698 2699 2700 2701 |
case SND_SOC_DAPM_STREAM_PAUSE_RELEASE: break; } } } |
2b97eabc0
|
2702 |
|
ce6120cca
|
2703 |
dapm_power_widgets(dapm, event); |
64a648c22
|
2704 2705 2706 2707 |
/* do we need to notify any clients that DAPM stream is complete */ if (dapm->stream_event) dapm->stream_event(dapm, event); |
ce6120cca
|
2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 |
} /** * snd_soc_dapm_stream_event - send a stream event to the dapm core * @rtd: PCM runtime data * @stream: stream name * @event: stream event * * Sends a stream event to the dapm core. The core then makes any * necessary widget power changes. * * Returns 0 for success else error. */ int snd_soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, const char *stream, int event) { struct snd_soc_codec *codec = rtd->codec; if (stream == NULL) return 0; mutex_lock(&codec->mutex); soc_dapm_stream_event(&codec->dapm, stream, event); |
8e8b2d676
|
2731 |
mutex_unlock(&codec->mutex); |
2b97eabc0
|
2732 2733 |
return 0; } |
2b97eabc0
|
2734 2735 |
/** |
a5302181e
|
2736 |
* snd_soc_dapm_enable_pin - enable pin. |
ce6120cca
|
2737 |
* @dapm: DAPM context |
a5302181e
|
2738 |
* @pin: pin name |
2b97eabc0
|
2739 |
* |
74b8f955a
|
2740 |
* Enables input/output pin and its parents or children widgets iff there is |
a5302181e
|
2741 2742 2743 |
* 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. |
2b97eabc0
|
2744 |
*/ |
ce6120cca
|
2745 |
int snd_soc_dapm_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
2b97eabc0
|
2746 |
{ |
ce6120cca
|
2747 |
return snd_soc_dapm_set_pin(dapm, pin, 1); |
a5302181e
|
2748 2749 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_enable_pin); |
2b97eabc0
|
2750 |
|
a5302181e
|
2751 |
/** |
da34183e6
|
2752 |
* snd_soc_dapm_force_enable_pin - force a pin to be enabled |
ce6120cca
|
2753 |
* @dapm: DAPM context |
da34183e6
|
2754 2755 2756 2757 2758 2759 2760 2761 2762 |
* @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. * * NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to * do any widget power switching. */ |
ce6120cca
|
2763 2764 |
int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
da34183e6
|
2765 |
{ |
91a5fca4b
|
2766 |
struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
da34183e6
|
2767 |
|
91a5fca4b
|
2768 2769 2770 2771 |
if (!w) { dev_err(dapm->dev, "dapm: unknown pin %s ", pin); return -EINVAL; |
0d86733cc
|
2772 |
} |
91a5fca4b
|
2773 2774 2775 2776 |
dev_dbg(w->dapm->dev, "dapm: force enable pin %s ", pin); w->connected = 1; w->force = 1; |
75c1f891b
|
2777 |
dapm_mark_dirty(w, "force enable"); |
da34183e6
|
2778 |
|
91a5fca4b
|
2779 |
return 0; |
da34183e6
|
2780 2781 2782 2783 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_force_enable_pin); /** |
a5302181e
|
2784 |
* snd_soc_dapm_disable_pin - disable pin. |
ce6120cca
|
2785 |
* @dapm: DAPM context |
a5302181e
|
2786 2787 |
* @pin: pin name * |
74b8f955a
|
2788 |
* Disables input/output pin and its parents or children widgets. |
a5302181e
|
2789 2790 2791 |
* NOTE: snd_soc_dapm_sync() needs to be called after this for DAPM to * do any widget power switching. */ |
ce6120cca
|
2792 2793 |
int snd_soc_dapm_disable_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
a5302181e
|
2794 |
{ |
ce6120cca
|
2795 |
return snd_soc_dapm_set_pin(dapm, pin, 0); |
2b97eabc0
|
2796 |
} |
a5302181e
|
2797 |
EXPORT_SYMBOL_GPL(snd_soc_dapm_disable_pin); |
2b97eabc0
|
2798 2799 |
/** |
5817b52a2
|
2800 |
* snd_soc_dapm_nc_pin - permanently disable pin. |
ce6120cca
|
2801 |
* @dapm: DAPM context |
5817b52a2
|
2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 |
* @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. */ |
ce6120cca
|
2813 |
int snd_soc_dapm_nc_pin(struct snd_soc_dapm_context *dapm, const char *pin) |
5817b52a2
|
2814 |
{ |
ce6120cca
|
2815 |
return snd_soc_dapm_set_pin(dapm, pin, 0); |
5817b52a2
|
2816 2817 2818 2819 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_nc_pin); /** |
a5302181e
|
2820 |
* snd_soc_dapm_get_pin_status - get audio pin status |
ce6120cca
|
2821 |
* @dapm: DAPM context |
a5302181e
|
2822 |
* @pin: audio signal pin endpoint (or start point) |
eeec12bf7
|
2823 |
* |
a5302181e
|
2824 |
* Get audio pin status - connected or disconnected. |
eeec12bf7
|
2825 |
* |
a5302181e
|
2826 |
* Returns 1 for connected otherwise 0. |
eeec12bf7
|
2827 |
*/ |
ce6120cca
|
2828 2829 |
int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm, const char *pin) |
eeec12bf7
|
2830 |
{ |
91a5fca4b
|
2831 |
struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); |
eeec12bf7
|
2832 |
|
91a5fca4b
|
2833 2834 |
if (w) return w->connected; |
a68b38ada
|
2835 |
|
eeec12bf7
|
2836 2837 |
return 0; } |
a5302181e
|
2838 |
EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status); |
eeec12bf7
|
2839 2840 |
/** |
1547aba99
|
2841 |
* snd_soc_dapm_ignore_suspend - ignore suspend status for DAPM endpoint |
ce6120cca
|
2842 |
* @dapm: DAPM context |
1547aba99
|
2843 2844 2845 2846 2847 2848 2849 2850 |
* @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. */ |
ce6120cca
|
2851 2852 |
int snd_soc_dapm_ignore_suspend(struct snd_soc_dapm_context *dapm, const char *pin) |
1547aba99
|
2853 |
{ |
91a5fca4b
|
2854 |
struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, false); |
1547aba99
|
2855 |
|
91a5fca4b
|
2856 2857 2858 2859 |
if (!w) { dev_err(dapm->dev, "dapm: unknown pin %s ", pin); return -EINVAL; |
1547aba99
|
2860 |
} |
91a5fca4b
|
2861 2862 2863 |
w->ignore_suspend = 1; return 0; |
1547aba99
|
2864 2865 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_ignore_suspend); |
1633281b7
|
2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 |
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) ", 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; |
a094b80bb
|
2915 2916 |
dev_dbg(codec->dev, "Auto NC: DAPMs: card:%p codec:%p ", |
1633281b7
|
2917 2918 2919 2920 2921 2922 2923 2924 2925 |
&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: |
a094b80bb
|
2926 2927 |
dev_dbg(codec->dev, "Auto NC: Checking widget %s ", |
1633281b7
|
2928 2929 |
w->name); if (!snd_soc_dapm_widget_in_card_paths(card, w)) { |
a094b80bb
|
2930 |
dev_dbg(codec->dev, |
1633281b7
|
2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 |
"... Not in map; disabling "); snd_soc_dapm_nc_pin(dapm, w->name); } break; default: break; } } } |
1547aba99
|
2941 |
/** |
2b97eabc0
|
2942 |
* snd_soc_dapm_free - free dapm resources |
728a52222
|
2943 |
* @dapm: DAPM context |
2b97eabc0
|
2944 2945 2946 |
* * Free all dapm widgets and resources. */ |
ce6120cca
|
2947 |
void snd_soc_dapm_free(struct snd_soc_dapm_context *dapm) |
2b97eabc0
|
2948 |
{ |
ce6120cca
|
2949 |
snd_soc_dapm_sys_remove(dapm->dev); |
6c45e1265
|
2950 |
dapm_debugfs_cleanup(dapm); |
ce6120cca
|
2951 |
dapm_free_widgets(dapm); |
7be31be88
|
2952 |
list_del(&dapm->list); |
2b97eabc0
|
2953 2954 |
} EXPORT_SYMBOL_GPL(snd_soc_dapm_free); |
ce6120cca
|
2955 |
static void soc_dapm_shutdown_codec(struct snd_soc_dapm_context *dapm) |
517374704
|
2956 |
{ |
517374704
|
2957 2958 2959 |
struct snd_soc_dapm_widget *w; LIST_HEAD(down_list); int powerdown = 0; |
97c866def
|
2960 2961 2962 |
list_for_each_entry(w, &dapm->card->widgets, list) { if (w->dapm != dapm) continue; |
517374704
|
2963 |
if (w->power) { |
828a842f2
|
2964 |
dapm_seq_insert(w, &down_list, false); |
c2caa4da4
|
2965 |
w->power = 0; |
517374704
|
2966 2967 2968 2969 2970 2971 2972 2973 |
powerdown = 1; } } /* If there were no widgets to power down we're already in * standby. */ if (powerdown) { |
ed5a4c472
|
2974 |
snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_PREPARE); |
828a842f2
|
2975 |
dapm_seq_run(dapm, &down_list, 0, false); |
ed5a4c472
|
2976 |
snd_soc_dapm_set_bias_level(dapm, SND_SOC_BIAS_STANDBY); |
517374704
|
2977 |
} |
f0fba2ad1
|
2978 2979 2980 2981 2982 2983 2984 2985 |
} /* * snd_soc_dapm_shutdown - callback for system shutdown */ void snd_soc_dapm_shutdown(struct snd_soc_card *card) { struct snd_soc_codec *codec; |
ce6120cca
|
2986 2987 |
list_for_each_entry(codec, &card->codec_dev_list, list) { soc_dapm_shutdown_codec(&codec->dapm); |
ed5a4c472
|
2988 |
snd_soc_dapm_set_bias_level(&codec->dapm, SND_SOC_BIAS_OFF); |
ce6120cca
|
2989 |
} |
517374704
|
2990 |
} |
2b97eabc0
|
2991 |
/* Module information */ |
d331124dc
|
2992 |
MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk"); |
2b97eabc0
|
2993 2994 |
MODULE_DESCRIPTION("Dynamic Audio Power Management core for ALSA SoC"); MODULE_LICENSE("GPL"); |