* Copyright 2005 Wolfson Microelectronics PLC.
* Copyright 2005 Openedhand Ltd.
*
- * Author: Liam Girdwood
- * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
* with code, comments and ideas from :-
* Richard Purdie <richard@openedhand.com>
*
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
- * Revision history
- * 12th Aug 2005 Initial version.
- * 25th Oct 2005 Working Codec, Interface and Platform registration.
- *
* TODO:
* o Add hw rules to enforce rates, etc.
* o More testing with other codecs/machines.
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/bitops.h>
+#include <linux/debugfs.h>
#include <linux/platform_device.h>
-#include <sound/driver.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
-/* debug */
-#define SOC_DEBUG 0
-#if SOC_DEBUG
-#define dbg(format, arg...) printk(format, ## arg)
-#else
-#define dbg(format, arg...)
-#endif
-/* debug DAI capabilities matching */
-#define SOC_DEBUG_DAI 0
-#if SOC_DEBUG_DAI
-#define dbgc(format, arg...) printk(format, ## arg)
-#else
-#define dbgc(format, arg...)
-#endif
-
-#define CODEC_CPU(codec, cpu) ((codec << 4) | cpu)
-
static DEFINE_MUTEX(pcm_mutex);
static DEFINE_MUTEX(io_mutex);
static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq);
-/* supported sample rates */
-/* ATTENTION: these values depend on the definition in pcm.h! */
-static const unsigned int rates[] = {
- 5512, 8000, 11025, 16000, 22050, 32000, 44100,
- 48000, 64000, 88200, 96000, 176400, 192000
-};
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *debugfs_root;
+#endif
+
+static DEFINE_MUTEX(client_mutex);
+static LIST_HEAD(card_list);
+static LIST_HEAD(dai_list);
+static LIST_HEAD(platform_list);
+static LIST_HEAD(codec_list);
+
+static int snd_soc_register_card(struct snd_soc_card *card);
+static int snd_soc_unregister_card(struct snd_soc_card *card);
/*
* This is a timeout to do a DAPM powerdown after a stream is closed().
module_param(pmdown_time, int, 0);
MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
+/*
+ * This function forces any delayed work to be queued and run.
+ */
+static int run_delayed_work(struct delayed_work *dwork)
+{
+ int ret;
+
+ /* cancel any work waiting to be queued. */
+ ret = cancel_delayed_work(dwork);
+
+ /* if there was any work waiting then we run it now and
+ * wait for it's completion */
+ if (ret) {
+ schedule_delayed_work(dwork, 0);
+ flush_scheduled_work();
+ }
+ return ret;
+}
+
#ifdef CONFIG_SND_SOC_AC97_BUS
/* unregister ac97 codec */
static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
int err;
codec->ac97->dev.bus = &ac97_bus_type;
- codec->ac97->dev.parent = NULL;
+ codec->ac97->dev.parent = codec->card->dev;
codec->ac97->dev.release = soc_ac97_device_release;
- snprintf(codec->ac97->dev.bus_id, BUS_ID_SIZE, "%d-%d:%s",
- codec->card->number, 0, codec->name);
+ dev_set_name(&codec->ac97->dev, "%d-%d:%s",
+ codec->card->number, 0, codec->name);
err = device_register(&codec->ac97->dev);
if (err < 0) {
snd_printk(KERN_ERR "Can't register ac97 bus\n");
}
#endif
-static inline const char* get_dai_name(int type)
-{
- switch(type) {
- case SND_SOC_DAI_AC97:
- return "AC97";
- case SND_SOC_DAI_I2S:
- return "I2S";
- case SND_SOC_DAI_PCM:
- return "PCM";
- }
- return NULL;
-}
-
-/* get rate format from rate */
-static inline int soc_get_rate_format(int rate)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(rates); i++) {
- if (rates[i] == rate)
- return 1 << i;
- }
- return 0;
-}
-
-/* gets the audio system mclk/sysclk for the given parameters */
-static unsigned inline int soc_get_mclk(struct snd_soc_pcm_runtime *rtd,
- struct snd_soc_clock_info *info)
-{
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_machine *machine = socdev->machine;
- int i;
-
- /* find the matching machine config and get it's mclk for the given
- * sample rate and hardware format */
- for(i = 0; i < machine->num_links; i++) {
- if (machine->dai_link[i].cpu_dai == rtd->cpu_dai &&
- machine->dai_link[i].config_sysclk)
- return machine->dai_link[i].config_sysclk(rtd, info);
- }
- return 0;
-}
-
-/* changes a bitclk multiplier mask to a divider mask */
-static u64 soc_bfs_rcw_to_div(u64 bfs, int rate, unsigned int mclk,
- unsigned int pcmfmt, unsigned int chn)
-{
- int i, j;
- u64 bfs_ = 0;
- int size = snd_pcm_format_physical_width(pcmfmt), min = 0;
-
- if (size <= 0)
- return 0;
-
- /* the minimum bit clock that has enough bandwidth */
- min = size * rate * chn;
- dbgc("rcw --> div min bclk %d with mclk %d\n", min, mclk);
-
- for (i = 0; i < 64; i++) {
- if ((bfs >> i) & 0x1) {
- j = min * (i + 1);
- bfs_ |= SND_SOC_FSBD(mclk/j);
- dbgc("rcw --> div support mult %d\n",
- SND_SOC_FSBD_REAL(1<<i));
- }
- }
-
- return bfs_;
-}
-
-/* changes a bitclk divider mask to a multiplier mask */
-static u64 soc_bfs_div_to_rcw(u64 bfs, int rate, unsigned int mclk,
- unsigned int pcmfmt, unsigned int chn)
-{
- int i, j;
- u64 bfs_ = 0;
-
- int size = snd_pcm_format_physical_width(pcmfmt), min = 0;
-
- if (size <= 0)
- return 0;
-
- /* the minimum bit clock that has enough bandwidth */
- min = size * rate * chn;
- dbgc("div to rcw min bclk %d with mclk %d\n", min, mclk);
-
- for (i = 0; i < 64; i++) {
- if ((bfs >> i) & 0x1) {
- j = mclk / (i + 1);
- if (j >= min) {
- bfs_ |= SND_SOC_FSBW(j/min);
- dbgc("div --> rcw support div %d\n",
- SND_SOC_FSBW_REAL(1<<i));
- }
- }
- }
-
- return bfs_;
-}
-
-/* changes a constant bitclk to a multiplier mask */
-static u64 soc_bfs_rate_to_rcw(u64 bfs, int rate, unsigned int mclk,
- unsigned int pcmfmt, unsigned int chn)
-{
- unsigned int bfs_ = rate * bfs;
- int size = snd_pcm_format_physical_width(pcmfmt), min = 0;
-
- if (size <= 0)
- return 0;
-
- /* the minimum bit clock that has enough bandwidth */
- min = size * rate * chn;
- dbgc("rate --> rcw min bclk %d with mclk %d\n", min, mclk);
-
- if (bfs_ < min)
- return 0;
- else {
- bfs_ = SND_SOC_FSBW(bfs_/min);
- dbgc("rate --> rcw support div %d\n", SND_SOC_FSBW_REAL(bfs_));
- return bfs_;
- }
-}
-
-/* changes a bitclk multiplier mask to a divider mask */
-static u64 soc_bfs_rate_to_div(u64 bfs, int rate, unsigned int mclk,
- unsigned int pcmfmt, unsigned int chn)
-{
- unsigned int bfs_ = rate * bfs;
- int size = snd_pcm_format_physical_width(pcmfmt), min = 0;
-
- if (size <= 0)
- return 0;
-
- /* the minimum bit clock that has enough bandwidth */
- min = size * rate * chn;
- dbgc("rate --> div min bclk %d with mclk %d\n", min, mclk);
-
- if (bfs_ < min)
- return 0;
- else {
- bfs_ = SND_SOC_FSBW(mclk/bfs_);
- dbgc("rate --> div support div %d\n", SND_SOC_FSBD_REAL(bfs_));
- return bfs_;
- }
-}
-
-/* Matches codec DAI and SoC CPU DAI hardware parameters */
-static int soc_hw_match_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai_mode *codec_dai_mode = NULL;
- struct snd_soc_dai_mode *cpu_dai_mode = NULL;
- struct snd_soc_clock_info clk_info;
- unsigned int fs, mclk, rate = params_rate(params),
- chn, j, k, cpu_bclk, codec_bclk, pcmrate;
- u16 fmt = 0;
- u64 codec_bfs, cpu_bfs;
-
- dbg("asoc: match version %s\n", SND_SOC_VERSION);
- clk_info.rate = rate;
- pcmrate = soc_get_rate_format(rate);
-
- /* try and find a match from the codec and cpu DAI capabilities */
- for (j = 0; j < rtd->codec_dai->caps.num_modes; j++) {
- for (k = 0; k < rtd->cpu_dai->caps.num_modes; k++) {
- codec_dai_mode = &rtd->codec_dai->caps.mode[j];
- cpu_dai_mode = &rtd->cpu_dai->caps.mode[k];
-
- if (!(codec_dai_mode->pcmrate & cpu_dai_mode->pcmrate &
- pcmrate)) {
- dbgc("asoc: DAI[%d:%d] failed to match rate\n", j, k);
- continue;
- }
-
- fmt = codec_dai_mode->fmt & cpu_dai_mode->fmt;
- if (!(fmt & SND_SOC_DAIFMT_FORMAT_MASK)) {
- dbgc("asoc: DAI[%d:%d] failed to match format\n", j, k);
- continue;
- }
-
- if (!(fmt & SND_SOC_DAIFMT_CLOCK_MASK)) {
- dbgc("asoc: DAI[%d:%d] failed to match clock masters\n",
- j, k);
- continue;
- }
-
- if (!(fmt & SND_SOC_DAIFMT_INV_MASK)) {
- dbgc("asoc: DAI[%d:%d] failed to match invert\n", j, k);
- continue;
- }
-
- if (!(codec_dai_mode->pcmfmt & cpu_dai_mode->pcmfmt)) {
- dbgc("asoc: DAI[%d:%d] failed to match pcm format\n", j, k);
- continue;
- }
-
- if (!(codec_dai_mode->pcmdir & cpu_dai_mode->pcmdir)) {
- dbgc("asoc: DAI[%d:%d] failed to match direction\n", j, k);
- continue;
- }
-
- /* todo - still need to add tdm selection */
- rtd->cpu_dai->dai_runtime.fmt =
- rtd->codec_dai->dai_runtime.fmt =
- 1 << (ffs(fmt & SND_SOC_DAIFMT_FORMAT_MASK) -1) |
- 1 << (ffs(fmt & SND_SOC_DAIFMT_CLOCK_MASK) - 1) |
- 1 << (ffs(fmt & SND_SOC_DAIFMT_INV_MASK) - 1);
- clk_info.bclk_master =
- rtd->cpu_dai->dai_runtime.fmt & SND_SOC_DAIFMT_CLOCK_MASK;
-
- /* make sure the ratio between rate and master
- * clock is acceptable*/
- fs = (cpu_dai_mode->fs & codec_dai_mode->fs);
- if (fs == 0) {
- dbgc("asoc: DAI[%d:%d] failed to match FS\n", j, k);
- continue;
- }
- clk_info.fs = rtd->cpu_dai->dai_runtime.fs =
- rtd->codec_dai->dai_runtime.fs = fs;
-
- /* calculate audio system clocking using slowest clocks possible*/
- mclk = soc_get_mclk(rtd, &clk_info);
- if (mclk == 0) {
- dbgc("asoc: DAI[%d:%d] configuration not clockable\n", j, k);
- dbgc("asoc: rate %d fs %d master %x\n", rate, fs,
- clk_info.bclk_master);
- continue;
- }
-
- /* calculate word size (per channel) and frame size */
- rtd->codec_dai->dai_runtime.pcmfmt =
- rtd->cpu_dai->dai_runtime.pcmfmt =
- 1 << params_format(params);
-
- chn = params_channels(params);
- /* i2s always has left and right */
- if (params_channels(params) == 1 &&
- rtd->cpu_dai->dai_runtime.fmt & (SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_LEFT_J))
- chn <<= 1;
-
- /* Calculate bfs - the ratio between bitclock and the sample rate
- * We must take into consideration the dividers and multipliers
- * used in the codec and cpu DAI modes. We always choose the
- * lowest possible clocks to reduce power.
- */
- switch (CODEC_CPU(codec_dai_mode->flags, cpu_dai_mode->flags)) {
- case CODEC_CPU(SND_SOC_DAI_BFS_DIV, SND_SOC_DAI_BFS_DIV):
- /* cpu & codec bfs dividers */
- rtd->cpu_dai->dai_runtime.bfs =
- rtd->codec_dai->dai_runtime.bfs =
- 1 << (fls(codec_dai_mode->bfs & cpu_dai_mode->bfs) - 1);
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_DIV, SND_SOC_DAI_BFS_RCW):
- /* normalise bfs codec divider & cpu rcw mult */
- codec_bfs = soc_bfs_div_to_rcw(codec_dai_mode->bfs, rate,
- mclk, rtd->codec_dai->dai_runtime.pcmfmt, chn);
- rtd->cpu_dai->dai_runtime.bfs =
- 1 << (ffs(codec_bfs & cpu_dai_mode->bfs) - 1);
- cpu_bfs = soc_bfs_rcw_to_div(cpu_dai_mode->bfs, rate, mclk,
- rtd->codec_dai->dai_runtime.pcmfmt, chn);
- rtd->codec_dai->dai_runtime.bfs =
- 1 << (fls(codec_dai_mode->bfs & cpu_bfs) - 1);
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_RCW, SND_SOC_DAI_BFS_DIV):
- /* normalise bfs codec rcw mult & cpu divider */
- codec_bfs = soc_bfs_rcw_to_div(codec_dai_mode->bfs, rate,
- mclk, rtd->codec_dai->dai_runtime.pcmfmt, chn);
- rtd->cpu_dai->dai_runtime.bfs =
- 1 << (fls(codec_bfs & cpu_dai_mode->bfs) -1);
- cpu_bfs = soc_bfs_div_to_rcw(cpu_dai_mode->bfs, rate, mclk,
- rtd->codec_dai->dai_runtime.pcmfmt, chn);
- rtd->codec_dai->dai_runtime.bfs =
- 1 << (ffs(codec_dai_mode->bfs & cpu_bfs) -1);
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_RCW, SND_SOC_DAI_BFS_RCW):
- /* codec & cpu bfs rate rcw multipliers */
- rtd->cpu_dai->dai_runtime.bfs =
- rtd->codec_dai->dai_runtime.bfs =
- 1 << (ffs(codec_dai_mode->bfs & cpu_dai_mode->bfs) -1);
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_DIV, SND_SOC_DAI_BFS_RATE):
- /* normalise cpu bfs rate const multiplier & codec div */
- cpu_bfs = soc_bfs_rate_to_div(cpu_dai_mode->bfs, rate,
- mclk, rtd->codec_dai->dai_runtime.pcmfmt, chn);
- if(codec_dai_mode->bfs & cpu_bfs) {
- rtd->codec_dai->dai_runtime.bfs = cpu_bfs;
- rtd->cpu_dai->dai_runtime.bfs = cpu_dai_mode->bfs;
- } else
- rtd->cpu_dai->dai_runtime.bfs = 0;
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_RCW, SND_SOC_DAI_BFS_RATE):
- /* normalise cpu bfs rate const multiplier & codec rcw mult */
- cpu_bfs = soc_bfs_rate_to_rcw(cpu_dai_mode->bfs, rate,
- mclk, rtd->codec_dai->dai_runtime.pcmfmt, chn);
- if(codec_dai_mode->bfs & cpu_bfs) {
- rtd->codec_dai->dai_runtime.bfs = cpu_bfs;
- rtd->cpu_dai->dai_runtime.bfs = cpu_dai_mode->bfs;
- } else
- rtd->cpu_dai->dai_runtime.bfs = 0;
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_RATE, SND_SOC_DAI_BFS_RCW):
- /* normalise cpu bfs rate rcw multiplier & codec const mult */
- codec_bfs = soc_bfs_rate_to_rcw(codec_dai_mode->bfs, rate,
- mclk, rtd->codec_dai->dai_runtime.pcmfmt, chn);
- if(cpu_dai_mode->bfs & codec_bfs) {
- rtd->cpu_dai->dai_runtime.bfs = codec_bfs;
- rtd->codec_dai->dai_runtime.bfs = codec_dai_mode->bfs;
- } else
- rtd->cpu_dai->dai_runtime.bfs = 0;
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_RATE, SND_SOC_DAI_BFS_DIV):
- /* normalise cpu bfs div & codec const mult */
- codec_bfs = soc_bfs_rate_to_div(codec_dai_mode->bfs, rate,
- mclk, rtd->codec_dai->dai_runtime.pcmfmt, chn);
- if(cpu_dai_mode->bfs & codec_bfs) {
- rtd->cpu_dai->dai_runtime.bfs = codec_bfs;
- rtd->codec_dai->dai_runtime.bfs = codec_dai_mode->bfs;
- } else
- rtd->cpu_dai->dai_runtime.bfs = 0;
- break;
- case CODEC_CPU(SND_SOC_DAI_BFS_RATE, SND_SOC_DAI_BFS_RATE):
- /* cpu & codec constant mult */
- if(codec_dai_mode->bfs == cpu_dai_mode->bfs)
- rtd->cpu_dai->dai_runtime.bfs =
- rtd->codec_dai->dai_runtime.bfs =
- codec_dai_mode->bfs;
- else
- rtd->cpu_dai->dai_runtime.bfs =
- rtd->codec_dai->dai_runtime.bfs = 0;
- break;
- }
-
- /* make sure the bit clock speed is acceptable */
- if (!rtd->cpu_dai->dai_runtime.bfs ||
- !rtd->codec_dai->dai_runtime.bfs) {
- dbgc("asoc: DAI[%d:%d] failed to match BFS\n", j, k);
- dbgc("asoc: cpu_dai %llu codec %llu\n",
- rtd->cpu_dai->dai_runtime.bfs,
- rtd->codec_dai->dai_runtime.bfs);
- dbgc("asoc: mclk %d hwfmt %x\n", mclk, fmt);
- continue;
- }
-
- goto found;
- }
- }
- printk(KERN_ERR "asoc: no matching DAI found between codec and CPU\n");
- return -EINVAL;
-
-found:
- /* we have matching DAI's, so complete the runtime info */
- rtd->codec_dai->dai_runtime.pcmrate =
- rtd->cpu_dai->dai_runtime.pcmrate =
- soc_get_rate_format(rate);
-
- rtd->codec_dai->dai_runtime.priv = codec_dai_mode->priv;
- rtd->cpu_dai->dai_runtime.priv = cpu_dai_mode->priv;
- rtd->codec_dai->dai_runtime.flags = codec_dai_mode->flags;
- rtd->cpu_dai->dai_runtime.flags = cpu_dai_mode->flags;
-
- /* for debug atm */
- dbg("asoc: DAI[%d:%d] Match OK\n", j, k);
- if (rtd->codec_dai->dai_runtime.flags == SND_SOC_DAI_BFS_DIV) {
- codec_bclk = (rtd->codec_dai->dai_runtime.fs * params_rate(params)) /
- SND_SOC_FSBD_REAL(rtd->codec_dai->dai_runtime.bfs);
- dbg("asoc: codec fs %d mclk %d bfs div %d bclk %d\n",
- rtd->codec_dai->dai_runtime.fs, mclk,
- SND_SOC_FSBD_REAL(rtd->codec_dai->dai_runtime.bfs), codec_bclk);
- } else if(rtd->codec_dai->dai_runtime.flags == SND_SOC_DAI_BFS_RATE) {
- codec_bclk = params_rate(params) * rtd->codec_dai->dai_runtime.bfs;
- dbg("asoc: codec fs %d mclk %d bfs rate mult %llu bclk %d\n",
- rtd->codec_dai->dai_runtime.fs, mclk,
- rtd->codec_dai->dai_runtime.bfs, codec_bclk);
- } else if (rtd->cpu_dai->dai_runtime.flags == SND_SOC_DAI_BFS_RCW) {
- codec_bclk = params_rate(params) * params_channels(params) *
- snd_pcm_format_physical_width(rtd->codec_dai->dai_runtime.pcmfmt) *
- SND_SOC_FSBW_REAL(rtd->codec_dai->dai_runtime.bfs);
- dbg("asoc: codec fs %d mclk %d bfs rcw mult %d bclk %d\n",
- rtd->codec_dai->dai_runtime.fs, mclk,
- SND_SOC_FSBW_REAL(rtd->codec_dai->dai_runtime.bfs), codec_bclk);
- } else
- codec_bclk = 0;
-
- if (rtd->cpu_dai->dai_runtime.flags == SND_SOC_DAI_BFS_DIV) {
- cpu_bclk = (rtd->cpu_dai->dai_runtime.fs * params_rate(params)) /
- SND_SOC_FSBD_REAL(rtd->cpu_dai->dai_runtime.bfs);
- dbg("asoc: cpu fs %d mclk %d bfs div %d bclk %d\n",
- rtd->cpu_dai->dai_runtime.fs, mclk,
- SND_SOC_FSBD_REAL(rtd->cpu_dai->dai_runtime.bfs), cpu_bclk);
- } else if (rtd->cpu_dai->dai_runtime.flags == SND_SOC_DAI_BFS_RATE) {
- cpu_bclk = params_rate(params) * rtd->cpu_dai->dai_runtime.bfs;
- dbg("asoc: cpu fs %d mclk %d bfs rate mult %llu bclk %d\n",
- rtd->cpu_dai->dai_runtime.fs, mclk,
- rtd->cpu_dai->dai_runtime.bfs, cpu_bclk);
- } else if (rtd->cpu_dai->dai_runtime.flags == SND_SOC_DAI_BFS_RCW) {
- cpu_bclk = params_rate(params) * params_channels(params) *
- snd_pcm_format_physical_width(rtd->cpu_dai->dai_runtime.pcmfmt) *
- SND_SOC_FSBW_REAL(rtd->cpu_dai->dai_runtime.bfs);
- dbg("asoc: cpu fs %d mclk %d bfs mult rcw %d bclk %d\n",
- rtd->cpu_dai->dai_runtime.fs, mclk,
- SND_SOC_FSBW_REAL(rtd->cpu_dai->dai_runtime.bfs), cpu_bclk);
- } else
- cpu_bclk = 0;
-
- /*
- * Check we have matching bitclocks. If we don't then it means the
- * sysclock returned by either the codec or cpu DAI (selected by the
- * machine sysclock function) is wrong compared with the supported DAI
- * modes for the codec or cpu DAI. Check your codec or CPU DAI
- * config_sysclock() functions.
- */
- if (cpu_bclk != codec_bclk && cpu_bclk){
- printk(KERN_ERR
- "asoc: codec and cpu bitclocks differ, audio may be wrong speed\n"
- );
- printk(KERN_ERR "asoc: codec %d != cpu %d\n", codec_bclk, cpu_bclk);
- }
-
- switch(rtd->cpu_dai->dai_runtime.fmt & SND_SOC_DAIFMT_CLOCK_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- dbg("asoc: DAI codec BCLK master, LRC master\n");
- break;
- case SND_SOC_DAIFMT_CBS_CFM:
- dbg("asoc: DAI codec BCLK slave, LRC master\n");
- break;
- case SND_SOC_DAIFMT_CBM_CFS:
- dbg("asoc: DAI codec BCLK master, LRC slave\n");
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- dbg("asoc: DAI codec BCLK slave, LRC slave\n");
- break;
- }
- dbg("asoc: mode %x, invert %x\n",
- rtd->cpu_dai->dai_runtime.fmt & SND_SOC_DAIFMT_FORMAT_MASK,
- rtd->cpu_dai->dai_runtime.fmt & SND_SOC_DAIFMT_INV_MASK);
- dbg("asoc: audio rate %d chn %d fmt %x\n", params_rate(params),
- params_channels(params), params_format(params));
-
- return 0;
-}
-
-static inline u32 get_rates(struct snd_soc_dai_mode *modes, int nmodes)
-{
- int i;
- u32 rates = 0;
-
- for(i = 0; i < nmodes; i++)
- rates |= modes[i].pcmrate;
-
- return rates;
-}
-
-static inline u64 get_formats(struct snd_soc_dai_mode *modes, int nmodes)
-{
- int i;
- u64 formats = 0;
-
- for(i = 0; i < nmodes; i++)
- formats |= modes[i].pcmfmt;
-
- return formats;
-}
-
/*
* Called by ALSA when a PCM substream is opened, the runtime->hw record is
* then initialized and any private data can be allocated. This also calls
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
+ struct snd_soc_card *card = socdev->card;
struct snd_pcm_runtime *runtime = substream->runtime;
- struct snd_soc_machine *machine = socdev->machine;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_codec_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_cpu_dai *cpu_dai = rtd->cpu_dai;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
int ret = 0;
mutex_lock(&pcm_mutex);
/* startup the audio subsystem */
- if (rtd->cpu_dai->ops.startup) {
- ret = rtd->cpu_dai->ops.startup(substream);
+ if (cpu_dai->ops->startup) {
+ ret = cpu_dai->ops->startup(substream, cpu_dai);
if (ret < 0) {
printk(KERN_ERR "asoc: can't open interface %s\n",
- rtd->cpu_dai->name);
+ cpu_dai->name);
goto out;
}
}
}
}
- if (machine->ops && machine->ops->startup) {
- ret = machine->ops->startup(substream);
+ if (codec_dai->ops->startup) {
+ ret = codec_dai->ops->startup(substream, codec_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: %s startup failed\n", machine->name);
- goto machine_err;
+ printk(KERN_ERR "asoc: can't open codec %s\n",
+ codec_dai->name);
+ goto codec_dai_err;
}
}
- if (rtd->codec_dai->ops.startup) {
- ret = rtd->codec_dai->ops.startup(substream);
+ if (machine->ops && machine->ops->startup) {
+ ret = machine->ops->startup(substream);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't open codec %s\n",
- rtd->codec_dai->name);
- goto codec_dai_err;
+ printk(KERN_ERR "asoc: %s startup failed\n", machine->name);
+ goto machine_err;
}
}
- /* create runtime params from DMA, codec and cpu DAI */
- if (runtime->hw.rates)
- runtime->hw.rates &=
- get_rates(codec_dai->caps.mode, codec_dai->caps.num_modes) &
- get_rates(cpu_dai->caps.mode, cpu_dai->caps.num_modes);
- else
- runtime->hw.rates =
- get_rates(codec_dai->caps.mode, codec_dai->caps.num_modes) &
- get_rates(cpu_dai->caps.mode, cpu_dai->caps.num_modes);
- if (runtime->hw.formats)
- runtime->hw.formats &=
- get_formats(codec_dai->caps.mode, codec_dai->caps.num_modes) &
- get_formats(cpu_dai->caps.mode, cpu_dai->caps.num_modes);
- else
- runtime->hw.formats =
- get_formats(codec_dai->caps.mode, codec_dai->caps.num_modes) &
- get_formats(cpu_dai->caps.mode, cpu_dai->caps.num_modes);
-
/* Check that the codec and cpu DAI's are compatible */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
runtime->hw.rate_min =
- max(rtd->codec_dai->playback.rate_min,
- rtd->cpu_dai->playback.rate_min);
+ max(codec_dai->playback.rate_min,
+ cpu_dai->playback.rate_min);
runtime->hw.rate_max =
- min(rtd->codec_dai->playback.rate_max,
- rtd->cpu_dai->playback.rate_max);
+ min(codec_dai->playback.rate_max,
+ cpu_dai->playback.rate_max);
runtime->hw.channels_min =
- max(rtd->codec_dai->playback.channels_min,
- rtd->cpu_dai->playback.channels_min);
+ max(codec_dai->playback.channels_min,
+ cpu_dai->playback.channels_min);
runtime->hw.channels_max =
- min(rtd->codec_dai->playback.channels_max,
- rtd->cpu_dai->playback.channels_max);
+ min(codec_dai->playback.channels_max,
+ cpu_dai->playback.channels_max);
+ runtime->hw.formats =
+ codec_dai->playback.formats & cpu_dai->playback.formats;
+ runtime->hw.rates =
+ codec_dai->playback.rates & cpu_dai->playback.rates;
} else {
runtime->hw.rate_min =
- max(rtd->codec_dai->capture.rate_min,
- rtd->cpu_dai->capture.rate_min);
+ max(codec_dai->capture.rate_min,
+ cpu_dai->capture.rate_min);
runtime->hw.rate_max =
- min(rtd->codec_dai->capture.rate_max,
- rtd->cpu_dai->capture.rate_max);
+ min(codec_dai->capture.rate_max,
+ cpu_dai->capture.rate_max);
runtime->hw.channels_min =
- max(rtd->codec_dai->capture.channels_min,
- rtd->cpu_dai->capture.channels_min);
+ max(codec_dai->capture.channels_min,
+ cpu_dai->capture.channels_min);
runtime->hw.channels_max =
- min(rtd->codec_dai->capture.channels_max,
- rtd->cpu_dai->capture.channels_max);
+ min(codec_dai->capture.channels_max,
+ cpu_dai->capture.channels_max);
+ runtime->hw.formats =
+ codec_dai->capture.formats & cpu_dai->capture.formats;
+ runtime->hw.rates =
+ codec_dai->capture.rates & cpu_dai->capture.rates;
}
snd_pcm_limit_hw_rates(runtime);
if (!runtime->hw.rates) {
printk(KERN_ERR "asoc: %s <-> %s No matching rates\n",
- rtd->codec_dai->name, rtd->cpu_dai->name);
- goto codec_dai_err;
+ codec_dai->name, cpu_dai->name);
+ goto machine_err;
}
if (!runtime->hw.formats) {
printk(KERN_ERR "asoc: %s <-> %s No matching formats\n",
- rtd->codec_dai->name, rtd->cpu_dai->name);
- goto codec_dai_err;
+ codec_dai->name, cpu_dai->name);
+ goto machine_err;
}
if (!runtime->hw.channels_min || !runtime->hw.channels_max) {
printk(KERN_ERR "asoc: %s <-> %s No matching channels\n",
- rtd->codec_dai->name, rtd->cpu_dai->name);
- goto codec_dai_err;
+ codec_dai->name, cpu_dai->name);
+ goto machine_err;
}
- dbg("asoc: %s <-> %s info:\n", rtd->codec_dai->name, rtd->cpu_dai->name);
- dbg("asoc: rate mask 0x%x\n", runtime->hw.rates);
- dbg("asoc: min ch %d max ch %d\n", runtime->hw.channels_min,
- runtime->hw.channels_max);
- dbg("asoc: min rate %d max rate %d\n", runtime->hw.rate_min,
- runtime->hw.rate_max);
-
+ pr_debug("asoc: %s <-> %s info:\n", codec_dai->name, cpu_dai->name);
+ pr_debug("asoc: rate mask 0x%x\n", runtime->hw.rates);
+ pr_debug("asoc: min ch %d max ch %d\n", runtime->hw.channels_min,
+ runtime->hw.channels_max);
+ pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min,
+ runtime->hw.rate_max);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- rtd->cpu_dai->playback.active = rtd->codec_dai->playback.active = 1;
+ cpu_dai->playback.active = codec_dai->playback.active = 1;
else
- rtd->cpu_dai->capture.active = rtd->codec_dai->capture.active = 1;
- rtd->cpu_dai->active = rtd->codec_dai->active = 1;
- rtd->cpu_dai->runtime = runtime;
- socdev->codec->active++;
+ cpu_dai->capture.active = codec_dai->capture.active = 1;
+ cpu_dai->active = codec_dai->active = 1;
+ cpu_dai->runtime = runtime;
+ card->codec->active++;
mutex_unlock(&pcm_mutex);
return 0;
-codec_dai_err:
+machine_err:
if (machine->ops && machine->ops->shutdown)
machine->ops->shutdown(substream);
-machine_err:
+codec_dai_err:
if (platform->pcm_ops->close)
platform->pcm_ops->close(substream);
platform_err:
- if (rtd->cpu_dai->ops.shutdown)
- rtd->cpu_dai->ops.shutdown(substream);
+ if (cpu_dai->ops->shutdown)
+ cpu_dai->ops->shutdown(substream, cpu_dai);
out:
mutex_unlock(&pcm_mutex);
return ret;
}
/*
- * Power down the audio subsytem pmdown_time msecs after close is called.
+ * Power down the audio subsystem pmdown_time msecs after close is called.
* This is to ensure there are no pops or clicks in between any music tracks
* due to DAPM power cycling.
*/
static void close_delayed_work(struct work_struct *work)
{
- struct snd_soc_device *socdev =
- container_of(work, struct snd_soc_device, delayed_work.work);
- struct snd_soc_codec *codec = socdev->codec;
- struct snd_soc_codec_dai *codec_dai;
+ struct snd_soc_card *card = container_of(work, struct snd_soc_card,
+ delayed_work.work);
+ struct snd_soc_device *socdev = card->socdev;
+ struct snd_soc_codec *codec = card->codec;
+ struct snd_soc_dai *codec_dai;
int i;
mutex_lock(&pcm_mutex);
- for(i = 0; i < codec->num_dai; i++) {
+ for (i = 0; i < codec->num_dai; i++) {
codec_dai = &codec->dai[i];
- dbg("pop wq checking: %s status: %s waiting: %s\n",
- codec_dai->playback.stream_name,
- codec_dai->playback.active ? "active" : "inactive",
- codec_dai->pop_wait ? "yes" : "no");
+ pr_debug("pop wq checking: %s status: %s waiting: %s\n",
+ codec_dai->playback.stream_name,
+ codec_dai->playback.active ? "active" : "inactive",
+ codec_dai->pop_wait ? "yes" : "no");
/* are we waiting on this codec DAI stream */
if (codec_dai->pop_wait == 1) {
+ /* Reduce power if no longer active */
+ if (codec->active == 0) {
+ pr_debug("pop wq D1 %s %s\n", codec->name,
+ codec_dai->playback.stream_name);
+ snd_soc_dapm_set_bias_level(socdev,
+ SND_SOC_BIAS_PREPARE);
+ }
+
codec_dai->pop_wait = 0;
- snd_soc_dapm_stream_event(codec, codec_dai->playback.stream_name,
+ snd_soc_dapm_stream_event(codec,
+ codec_dai->playback.stream_name,
SND_SOC_DAPM_STREAM_STOP);
- /* power down the codec power domain if no longer active */
+ /* Fall into standby if no longer active */
if (codec->active == 0) {
- dbg("pop wq D3 %s %s\n", codec->name,
- codec_dai->playback.stream_name);
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+ pr_debug("pop wq D3 %s %s\n", codec->name,
+ codec_dai->playback.stream_name);
+ snd_soc_dapm_set_bias_level(socdev,
+ SND_SOC_BIAS_STANDBY);
}
}
}
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_machine *machine = socdev->machine;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
+ struct snd_soc_codec *codec = card->codec;
mutex_lock(&pcm_mutex);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- rtd->cpu_dai->playback.active = rtd->codec_dai->playback.active = 0;
+ cpu_dai->playback.active = codec_dai->playback.active = 0;
else
- rtd->cpu_dai->capture.active = rtd->codec_dai->capture.active = 0;
+ cpu_dai->capture.active = codec_dai->capture.active = 0;
- if (rtd->codec_dai->playback.active == 0 &&
- rtd->codec_dai->capture.active == 0) {
- rtd->cpu_dai->active = rtd->codec_dai->active = 0;
+ if (codec_dai->playback.active == 0 &&
+ codec_dai->capture.active == 0) {
+ cpu_dai->active = codec_dai->active = 0;
}
codec->active--;
- if (rtd->cpu_dai->ops.shutdown)
- rtd->cpu_dai->ops.shutdown(substream);
+ /* Muting the DAC suppresses artifacts caused during digital
+ * shutdown, for example from stopping clocks.
+ */
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snd_soc_dai_digital_mute(codec_dai, 1);
+
+ if (cpu_dai->ops->shutdown)
+ cpu_dai->ops->shutdown(substream, cpu_dai);
- if (rtd->codec_dai->ops.shutdown)
- rtd->codec_dai->ops.shutdown(substream);
+ if (codec_dai->ops->shutdown)
+ codec_dai->ops->shutdown(substream, codec_dai);
if (machine->ops && machine->ops->shutdown)
machine->ops->shutdown(substream);
if (platform->pcm_ops->close)
platform->pcm_ops->close(substream);
- rtd->cpu_dai->runtime = NULL;
+ cpu_dai->runtime = NULL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/* start delayed pop wq here for playback streams */
- rtd->codec_dai->pop_wait = 1;
- schedule_delayed_work(&socdev->delayed_work,
+ codec_dai->pop_wait = 1;
+ schedule_delayed_work(&card->delayed_work,
msecs_to_jiffies(pmdown_time));
} else {
/* capture streams can be powered down now */
- snd_soc_dapm_stream_event(codec, rtd->codec_dai->capture.stream_name,
+ snd_soc_dapm_stream_event(codec,
+ codec_dai->capture.stream_name,
SND_SOC_DAPM_STREAM_STOP);
- if (codec->active == 0 && rtd->codec_dai->pop_wait == 0){
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D3hot);
- }
+ if (codec->active == 0 && codec_dai->pop_wait == 0)
+ snd_soc_dapm_set_bias_level(socdev,
+ SND_SOC_BIAS_STANDBY);
}
mutex_unlock(&pcm_mutex);
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
+ struct snd_soc_codec *codec = card->codec;
int ret = 0;
mutex_lock(&pcm_mutex);
+
+ if (machine->ops && machine->ops->prepare) {
+ ret = machine->ops->prepare(substream);
+ if (ret < 0) {
+ printk(KERN_ERR "asoc: machine prepare error\n");
+ goto out;
+ }
+ }
+
if (platform->pcm_ops->prepare) {
ret = platform->pcm_ops->prepare(substream);
if (ret < 0) {
}
}
- if (rtd->codec_dai->ops.prepare) {
- ret = rtd->codec_dai->ops.prepare(substream);
+ if (codec_dai->ops->prepare) {
+ ret = codec_dai->ops->prepare(substream, codec_dai);
if (ret < 0) {
printk(KERN_ERR "asoc: codec DAI prepare error\n");
goto out;
}
}
- if (rtd->cpu_dai->ops.prepare)
- ret = rtd->cpu_dai->ops.prepare(substream);
-
- /* we only want to start a DAPM playback stream if we are not waiting
- * on an existing one stopping */
- if (rtd->codec_dai->pop_wait) {
- /* we are waiting for the delayed work to start */
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- snd_soc_dapm_stream_event(codec,
- rtd->codec_dai->capture.stream_name,
- SND_SOC_DAPM_STREAM_START);
- else {
- rtd->codec_dai->pop_wait = 0;
- cancel_delayed_work(&socdev->delayed_work);
- if (rtd->codec_dai->digital_mute)
- rtd->codec_dai->digital_mute(codec, rtd->codec_dai, 0);
+ if (cpu_dai->ops->prepare) {
+ ret = cpu_dai->ops->prepare(substream, cpu_dai);
+ if (ret < 0) {
+ printk(KERN_ERR "asoc: cpu DAI prepare error\n");
+ goto out;
}
- } else {
- /* no delayed work - do we need to power up codec */
- if (codec->dapm_state != SNDRV_CTL_POWER_D0) {
+ }
+
+ /* cancel any delayed stream shutdown that is pending */
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
+ codec_dai->pop_wait) {
+ codec_dai->pop_wait = 0;
+ cancel_delayed_work(&card->delayed_work);
+ }
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D1);
+ /* do we need to power up codec */
+ if (codec->bias_level != SND_SOC_BIAS_ON) {
+ snd_soc_dapm_set_bias_level(socdev,
+ SND_SOC_BIAS_PREPARE);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- snd_soc_dapm_stream_event(codec,
- rtd->codec_dai->playback.stream_name,
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snd_soc_dapm_stream_event(codec,
+ codec_dai->playback.stream_name,
SND_SOC_DAPM_STREAM_START);
- else
- snd_soc_dapm_stream_event(codec,
- rtd->codec_dai->capture.stream_name,
+ else
+ snd_soc_dapm_stream_event(codec,
+ codec_dai->capture.stream_name,
SND_SOC_DAPM_STREAM_START);
- if (codec->dapm_event)
- codec->dapm_event(codec, SNDRV_CTL_POWER_D0);
- if (rtd->codec_dai->digital_mute)
- rtd->codec_dai->digital_mute(codec, rtd->codec_dai, 0);
+ snd_soc_dapm_set_bias_level(socdev, SND_SOC_BIAS_ON);
+ snd_soc_dai_digital_mute(codec_dai, 0);
- } else {
- /* codec already powered - power on widgets */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- snd_soc_dapm_stream_event(codec,
- rtd->codec_dai->playback.stream_name,
+ } else {
+ /* codec already powered - power on widgets */
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ snd_soc_dapm_stream_event(codec,
+ codec_dai->playback.stream_name,
SND_SOC_DAPM_STREAM_START);
- else
- snd_soc_dapm_stream_event(codec,
- rtd->codec_dai->capture.stream_name,
+ else
+ snd_soc_dapm_stream_event(codec,
+ codec_dai->capture.stream_name,
SND_SOC_DAPM_STREAM_START);
- if (rtd->codec_dai->digital_mute)
- rtd->codec_dai->digital_mute(codec, rtd->codec_dai, 0);
- }
+
+ snd_soc_dai_digital_mute(codec_dai, 0);
}
out:
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_machine *machine = socdev->machine;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
int ret = 0;
mutex_lock(&pcm_mutex);
- /* we don't need to match any AC97 params */
- if (rtd->cpu_dai->type != SND_SOC_DAI_AC97) {
- ret = soc_hw_match_params(substream, params);
- if (ret < 0)
- goto out;
- } else {
- struct snd_soc_clock_info clk_info;
- clk_info.rate = params_rate(params);
- ret = soc_get_mclk(rtd, &clk_info);
- if (ret < 0)
+ if (machine->ops && machine->ops->hw_params) {
+ ret = machine->ops->hw_params(substream, params);
+ if (ret < 0) {
+ printk(KERN_ERR "asoc: machine hw_params failed\n");
goto out;
+ }
}
- if (rtd->codec_dai->ops.hw_params) {
- ret = rtd->codec_dai->ops.hw_params(substream, params);
+ if (codec_dai->ops->hw_params) {
+ ret = codec_dai->ops->hw_params(substream, params, codec_dai);
if (ret < 0) {
printk(KERN_ERR "asoc: can't set codec %s hw params\n",
- rtd->codec_dai->name);
- goto out;
+ codec_dai->name);
+ goto codec_err;
}
}
- if (rtd->cpu_dai->ops.hw_params) {
- ret = rtd->cpu_dai->ops.hw_params(substream, params);
+ if (cpu_dai->ops->hw_params) {
+ ret = cpu_dai->ops->hw_params(substream, params, cpu_dai);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't set interface %s hw params\n",
- rtd->cpu_dai->name);
+ printk(KERN_ERR "asoc: interface %s hw params failed\n",
+ cpu_dai->name);
goto interface_err;
}
}
if (platform->pcm_ops->hw_params) {
ret = platform->pcm_ops->hw_params(substream, params);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't set platform %s hw params\n",
+ printk(KERN_ERR "asoc: platform %s hw params failed\n",
platform->name);
goto platform_err;
}
}
- if (machine->ops && machine->ops->hw_params) {
- ret = machine->ops->hw_params(substream, params);
- if (ret < 0) {
- printk(KERN_ERR "asoc: machine hw_params failed\n");
- goto machine_err;
- }
- }
-
out:
mutex_unlock(&pcm_mutex);
return ret;
-machine_err:
- if (platform->pcm_ops->hw_free)
- platform->pcm_ops->hw_free(substream);
-
platform_err:
- if (rtd->cpu_dai->ops.hw_free)
- rtd->cpu_dai->ops.hw_free(substream);
+ if (cpu_dai->ops->hw_free)
+ cpu_dai->ops->hw_free(substream, cpu_dai);
interface_err:
- if (rtd->codec_dai->ops.hw_free)
- rtd->codec_dai->ops.hw_free(substream);
+ if (codec_dai->ops->hw_free)
+ codec_dai->ops->hw_free(substream, codec_dai);
+
+codec_err:
+ if (machine->ops && machine->ops->hw_free)
+ machine->ops->hw_free(substream);
mutex_unlock(&pcm_mutex);
return ret;
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_codec *codec = socdev->codec;
- struct snd_soc_machine *machine = socdev->machine;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
+ struct snd_soc_codec *codec = card->codec;
mutex_lock(&pcm_mutex);
/* apply codec digital mute */
- if (!codec->active && rtd->codec_dai->digital_mute)
- rtd->codec_dai->digital_mute(codec, rtd->codec_dai, 1);
+ if (!codec->active)
+ snd_soc_dai_digital_mute(codec_dai, 1);
/* free any machine hw params */
if (machine->ops && machine->ops->hw_free)
platform->pcm_ops->hw_free(substream);
/* now free hw params for the DAI's */
- if (rtd->codec_dai->ops.hw_free)
- rtd->codec_dai->ops.hw_free(substream);
+ if (codec_dai->ops->hw_free)
+ codec_dai->ops->hw_free(substream, codec_dai);
- if (rtd->cpu_dai->ops.hw_free)
- rtd->cpu_dai->ops.hw_free(substream);
+ if (cpu_dai->ops->hw_free)
+ cpu_dai->ops->hw_free(substream, cpu_dai);
mutex_unlock(&pcm_mutex);
return 0;
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_platform *platform = socdev->platform;
+ struct snd_soc_card *card= socdev->card;
+ struct snd_soc_dai_link *machine = rtd->dai;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai *cpu_dai = machine->cpu_dai;
+ struct snd_soc_dai *codec_dai = machine->codec_dai;
int ret;
- if (rtd->codec_dai->ops.trigger) {
- ret = rtd->codec_dai->ops.trigger(substream, cmd);
+ if (codec_dai->ops->trigger) {
+ ret = codec_dai->ops->trigger(substream, cmd, codec_dai);
if (ret < 0)
return ret;
}
return ret;
}
- if (rtd->cpu_dai->ops.trigger) {
- ret = rtd->cpu_dai->ops.trigger(substream, cmd);
+ if (cpu_dai->ops->trigger) {
+ ret = cpu_dai->ops->trigger(substream, cmd, cpu_dai);
if (ret < 0)
return ret;
}
/* powers down audio subsystem for suspend */
static int soc_suspend(struct platform_device *pdev, pm_message_t state)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_machine *machine = socdev->machine;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
+ struct snd_soc_codec *codec = card->codec;
int i;
+ /* Due to the resume being scheduled into a workqueue we could
+ * suspend before that's finished - wait for it to complete.
+ */
+ snd_power_lock(codec->card);
+ snd_power_wait(codec->card, SNDRV_CTL_POWER_D0);
+ snd_power_unlock(codec->card);
+
+ /* we're going to block userspace touching us until resume completes */
+ snd_power_change_state(codec->card, SNDRV_CTL_POWER_D3hot);
+
/* mute any active DAC's */
- for(i = 0; i < machine->num_links; i++) {
- struct snd_soc_codec_dai *dai = machine->dai_link[i].codec_dai;
- if (dai->digital_mute && dai->playback.active)
- dai->digital_mute(codec, dai, 1);
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *dai = card->dai_link[i].codec_dai;
+ if (dai->ops->digital_mute && dai->playback.active)
+ dai->ops->digital_mute(dai, 1);
}
- if (machine->suspend_pre)
- machine->suspend_pre(pdev, state);
+ /* suspend all pcms */
+ for (i = 0; i < card->num_links; i++)
+ snd_pcm_suspend_all(card->dai_link[i].pcm);
+
+ if (card->suspend_pre)
+ card->suspend_pre(pdev, state);
- for(i = 0; i < machine->num_links; i++) {
- struct snd_soc_cpu_dai *cpu_dai = machine->dai_link[i].cpu_dai;
- if (cpu_dai->suspend && cpu_dai->type != SND_SOC_DAI_AC97)
- cpu_dai->suspend(pdev, cpu_dai);
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+ if (cpu_dai->suspend && !cpu_dai->ac97_control)
+ cpu_dai->suspend(cpu_dai);
if (platform->suspend)
- platform->suspend(pdev, cpu_dai);
+ platform->suspend(cpu_dai);
}
/* close any waiting streams and save state */
- flush_scheduled_work();
- codec->suspend_dapm_state = codec->dapm_state;
+ run_delayed_work(&card->delayed_work);
+ codec->suspend_bias_level = codec->bias_level;
- for(i = 0; i < codec->num_dai; i++) {
+ for (i = 0; i < codec->num_dai; i++) {
char *stream = codec->dai[i].playback.stream_name;
if (stream != NULL)
snd_soc_dapm_stream_event(codec, stream,
if (codec_dev->suspend)
codec_dev->suspend(pdev, state);
- for(i = 0; i < machine->num_links; i++) {
- struct snd_soc_cpu_dai *cpu_dai = machine->dai_link[i].cpu_dai;
- if (cpu_dai->suspend && cpu_dai->type == SND_SOC_DAI_AC97)
- cpu_dai->suspend(pdev, cpu_dai);
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+ if (cpu_dai->suspend && cpu_dai->ac97_control)
+ cpu_dai->suspend(cpu_dai);
}
- if (machine->suspend_post)
- machine->suspend_post(pdev, state);
+ if (card->suspend_post)
+ card->suspend_post(pdev, state);
return 0;
}
-/* powers up audio subsystem after a suspend */
-static int soc_resume(struct platform_device *pdev)
+/* deferred resume work, so resume can complete before we finished
+ * setting our codec back up, which can be very slow on I2C
+ */
+static void soc_resume_deferred(struct work_struct *work)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_machine *machine = socdev->machine;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_card *card = container_of(work,
+ struct snd_soc_card,
+ deferred_resume_work);
+ struct snd_soc_device *socdev = card->socdev;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
+ struct snd_soc_codec *codec = card->codec;
+ struct platform_device *pdev = to_platform_device(socdev->dev);
int i;
- if (machine->resume_pre)
- machine->resume_pre(pdev);
+ /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
+ * so userspace apps are blocked from touching us
+ */
+
+ dev_dbg(socdev->dev, "starting resume work\n");
- for(i = 0; i < machine->num_links; i++) {
- struct snd_soc_cpu_dai *cpu_dai = machine->dai_link[i].cpu_dai;
- if (cpu_dai->resume && cpu_dai->type == SND_SOC_DAI_AC97)
- cpu_dai->resume(pdev, cpu_dai);
+ if (card->resume_pre)
+ card->resume_pre(pdev);
+
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+ if (cpu_dai->resume && cpu_dai->ac97_control)
+ cpu_dai->resume(cpu_dai);
}
if (codec_dev->resume)
codec_dev->resume(pdev);
- for(i = 0; i < codec->num_dai; i++) {
- char* stream = codec->dai[i].playback.stream_name;
+ for (i = 0; i < codec->num_dai; i++) {
+ char *stream = codec->dai[i].playback.stream_name;
if (stream != NULL)
snd_soc_dapm_stream_event(codec, stream,
SND_SOC_DAPM_STREAM_RESUME);
SND_SOC_DAPM_STREAM_RESUME);
}
- /* unmute any active DAC's */
- for(i = 0; i < machine->num_links; i++) {
- struct snd_soc_codec_dai *dai = machine->dai_link[i].codec_dai;
- if (dai->digital_mute && dai->playback.active)
- dai->digital_mute(codec, dai, 0);
+ /* unmute any active DACs */
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *dai = card->dai_link[i].codec_dai;
+ if (dai->ops->digital_mute && dai->playback.active)
+ dai->ops->digital_mute(dai, 0);
}
- for(i = 0; i < machine->num_links; i++) {
- struct snd_soc_cpu_dai *cpu_dai = machine->dai_link[i].cpu_dai;
- if (cpu_dai->resume && cpu_dai->type != SND_SOC_DAI_AC97)
- cpu_dai->resume(pdev, cpu_dai);
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+ if (cpu_dai->resume && !cpu_dai->ac97_control)
+ cpu_dai->resume(cpu_dai);
if (platform->resume)
- platform->resume(pdev, cpu_dai);
+ platform->resume(cpu_dai);
}
- if (machine->resume_post)
- machine->resume_post(pdev);
+ if (card->resume_post)
+ card->resume_post(pdev);
+
+ dev_dbg(socdev->dev, "resume work completed\n");
+
+ /* userspace can access us now we are back as we were before */
+ snd_power_change_state(codec->card, SNDRV_CTL_POWER_D0);
+}
+
+/* powers up audio subsystem after a suspend */
+static int soc_resume(struct platform_device *pdev)
+{
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_dai *cpu_dai = card->dai_link[0].cpu_dai;
+
+ /* AC97 devices might have other drivers hanging off them so
+ * need to resume immediately. Other drivers don't have that
+ * problem and may take a substantial amount of time to resume
+ * due to I/O costs and anti-pop so handle them out of line.
+ */
+ if (cpu_dai->ac97_control) {
+ dev_dbg(socdev->dev, "Resuming AC97 immediately\n");
+ soc_resume_deferred(&card->deferred_resume_work);
+ } else {
+ dev_dbg(socdev->dev, "Scheduling resume work\n");
+ if (!schedule_work(&card->deferred_resume_work))
+ dev_err(socdev->dev, "resume work item may be lost\n");
+ }
return 0;
}
#define soc_resume NULL
#endif
-/* probes a new socdev */
-static int soc_probe(struct platform_device *pdev)
+static void snd_soc_instantiate_card(struct snd_soc_card *card)
{
- int ret = 0, i;
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_machine *machine = socdev->machine;
- struct snd_soc_platform *platform = socdev->platform;
- struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
-
- if (machine->probe) {
- ret = machine->probe(pdev);
- if(ret < 0)
- return ret;
+ struct platform_device *pdev = container_of(card->dev,
+ struct platform_device,
+ dev);
+ struct snd_soc_codec_device *codec_dev = card->socdev->codec_dev;
+ struct snd_soc_platform *platform;
+ struct snd_soc_dai *dai;
+ int i, found, ret, ac97;
+
+ if (card->instantiated)
+ return;
+
+ found = 0;
+ list_for_each_entry(platform, &platform_list, list)
+ if (card->platform == platform) {
+ found = 1;
+ break;
+ }
+ if (!found) {
+ dev_dbg(card->dev, "Platform %s not registered\n",
+ card->platform->name);
+ return;
}
- for (i = 0; i < machine->num_links; i++) {
- struct snd_soc_cpu_dai *cpu_dai = machine->dai_link[i].cpu_dai;
- if (cpu_dai->probe) {
- ret = cpu_dai->probe(pdev);
- if(ret < 0)
- goto cpu_dai_err;
+ ac97 = 0;
+ for (i = 0; i < card->num_links; i++) {
+ found = 0;
+ list_for_each_entry(dai, &dai_list, list)
+ if (card->dai_link[i].cpu_dai == dai) {
+ found = 1;
+ break;
+ }
+ if (!found) {
+ dev_dbg(card->dev, "DAI %s not registered\n",
+ card->dai_link[i].cpu_dai->name);
+ return;
}
- }
- if (codec_dev->probe) {
- ret = codec_dev->probe(pdev);
- if(ret < 0)
- goto cpu_dai_err;
+ if (card->dai_link[i].cpu_dai->ac97_control)
+ ac97 = 1;
}
- if (platform->probe) {
- ret = platform->probe(pdev);
- if(ret < 0)
+ /* If we have AC97 in the system then don't wait for the
+ * codec. This will need revisiting if we have to handle
+ * systems with mixed AC97 and non-AC97 parts. Only check for
+ * DAIs currently; we can't do this per link since some AC97
+ * codecs have non-AC97 DAIs.
+ */
+ if (!ac97)
+ for (i = 0; i < card->num_links; i++) {
+ found = 0;
+ list_for_each_entry(dai, &dai_list, list)
+ if (card->dai_link[i].codec_dai == dai) {
+ found = 1;
+ break;
+ }
+ if (!found) {
+ dev_dbg(card->dev, "DAI %s not registered\n",
+ card->dai_link[i].codec_dai->name);
+ return;
+ }
+ }
+
+ /* Note that we do not current check for codec components */
+
+ dev_dbg(card->dev, "All components present, instantiating\n");
+
+ /* Found everything, bring it up */
+ if (card->probe) {
+ ret = card->probe(pdev);
+ if (ret < 0)
+ return;
+ }
+
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
+ if (cpu_dai->probe) {
+ ret = cpu_dai->probe(pdev, cpu_dai);
+ if (ret < 0)
+ goto cpu_dai_err;
+ }
+ }
+
+ if (codec_dev->probe) {
+ ret = codec_dev->probe(pdev);
+ if (ret < 0)
+ goto cpu_dai_err;
+ }
+
+ if (platform->probe) {
+ ret = platform->probe(pdev);
+ if (ret < 0)
goto platform_err;
}
/* DAPM stream work */
- INIT_DELAYED_WORK(&socdev->delayed_work, close_delayed_work);
- return 0;
+ INIT_DELAYED_WORK(&card->delayed_work, close_delayed_work);
+#ifdef CONFIG_PM
+ /* deferred resume work */
+ INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
+#endif
+
+ card->instantiated = 1;
+
+ return;
platform_err:
if (codec_dev->remove)
codec_dev->remove(pdev);
cpu_dai_err:
- for (i--; i > 0; i--) {
- struct snd_soc_cpu_dai *cpu_dai = machine->dai_link[i].cpu_dai;
+ for (i--; i >= 0; i--) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
if (cpu_dai->remove)
- cpu_dai->remove(pdev);
+ cpu_dai->remove(pdev, cpu_dai);
}
- if (machine->remove)
- machine->remove(pdev);
+ if (card->remove)
+ card->remove(pdev);
+}
- return ret;
+/*
+ * Attempt to initialise any uninitalised cards. Must be called with
+ * client_mutex.
+ */
+static void snd_soc_instantiate_cards(void)
+{
+ struct snd_soc_card *card;
+ list_for_each_entry(card, &card_list, list)
+ snd_soc_instantiate_card(card);
+}
+
+/* probes a new socdev */
+static int soc_probe(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+ struct snd_soc_card *card = socdev->card;
+
+ /* Bodge while we push things out of socdev */
+ card->socdev = socdev;
+
+ /* Bodge while we unpick instantiation */
+ card->dev = &pdev->dev;
+ ret = snd_soc_register_card(card);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to register card\n");
+ return ret;
+ }
+
+ return 0;
}
/* removes a socdev */
{
int i;
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_machine *machine = socdev->machine;
- struct snd_soc_platform *platform = socdev->platform;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_platform *platform = card->platform;
struct snd_soc_codec_device *codec_dev = socdev->codec_dev;
+ if (!card->instantiated)
+ return 0;
+
+ run_delayed_work(&card->delayed_work);
+
if (platform->remove)
platform->remove(pdev);
if (codec_dev->remove)
codec_dev->remove(pdev);
- for (i = 0; i < machine->num_links; i++) {
- struct snd_soc_cpu_dai *cpu_dai = machine->dai_link[i].cpu_dai;
+ for (i = 0; i < card->num_links; i++) {
+ struct snd_soc_dai *cpu_dai = card->dai_link[i].cpu_dai;
if (cpu_dai->remove)
- cpu_dai->remove(pdev);
+ cpu_dai->remove(pdev, cpu_dai);
}
- if (machine->remove)
- machine->remove(pdev);
+ if (card->remove)
+ card->remove(pdev);
+
+ snd_soc_unregister_card(card);
return 0;
}
static struct platform_driver soc_driver = {
.driver = {
.name = "soc-audio",
+ .owner = THIS_MODULE,
},
.probe = soc_probe,
.remove = soc_remove,
static int soc_new_pcm(struct snd_soc_device *socdev,
struct snd_soc_dai_link *dai_link, int num)
{
- struct snd_soc_codec *codec = socdev->codec;
- struct snd_soc_codec_dai *codec_dai = dai_link->codec_dai;
- struct snd_soc_cpu_dai *cpu_dai = dai_link->cpu_dai;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_codec *codec = card->codec;
+ struct snd_soc_platform *platform = card->platform;
+ struct snd_soc_dai *codec_dai = dai_link->codec_dai;
+ struct snd_soc_dai *cpu_dai = dai_link->cpu_dai;
struct snd_soc_pcm_runtime *rtd;
struct snd_pcm *pcm;
char new_name[64];
rtd = kzalloc(sizeof(struct snd_soc_pcm_runtime), GFP_KERNEL);
if (rtd == NULL)
return -ENOMEM;
- rtd->cpu_dai = cpu_dai;
- rtd->codec_dai = codec_dai;
+
+ rtd->dai = dai_link;
rtd->socdev = socdev;
+ codec_dai->codec = card->codec;
/* check client and interface hw capabilities */
- sprintf(new_name, "%s %s-%s-%d",dai_link->stream_name, codec_dai->name,
- get_dai_name(cpu_dai->type), num);
+ sprintf(new_name, "%s %s-%d", dai_link->stream_name, codec_dai->name,
+ num);
if (codec_dai->playback.channels_min)
playback = 1;
ret = snd_pcm_new(codec->card, new_name, codec->pcm_devs++, playback,
capture, &pcm);
if (ret < 0) {
- printk(KERN_ERR "asoc: can't create pcm for codec %s\n", codec->name);
+ printk(KERN_ERR "asoc: can't create pcm for codec %s\n",
+ codec->name);
kfree(rtd);
return ret;
}
+ dai_link->pcm = pcm;
pcm->private_data = rtd;
- soc_pcm_ops.mmap = socdev->platform->pcm_ops->mmap;
- soc_pcm_ops.pointer = socdev->platform->pcm_ops->pointer;
- soc_pcm_ops.ioctl = socdev->platform->pcm_ops->ioctl;
- soc_pcm_ops.copy = socdev->platform->pcm_ops->copy;
- soc_pcm_ops.silence = socdev->platform->pcm_ops->silence;
- soc_pcm_ops.ack = socdev->platform->pcm_ops->ack;
- soc_pcm_ops.page = socdev->platform->pcm_ops->page;
+ soc_pcm_ops.mmap = platform->pcm_ops->mmap;
+ soc_pcm_ops.pointer = platform->pcm_ops->pointer;
+ soc_pcm_ops.ioctl = platform->pcm_ops->ioctl;
+ soc_pcm_ops.copy = platform->pcm_ops->copy;
+ soc_pcm_ops.silence = platform->pcm_ops->silence;
+ soc_pcm_ops.ack = platform->pcm_ops->ack;
+ soc_pcm_ops.page = platform->pcm_ops->page;
if (playback)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &soc_pcm_ops);
if (capture)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &soc_pcm_ops);
- ret = socdev->platform->pcm_new(codec->card, codec_dai, pcm);
+ ret = platform->pcm_new(codec->card, codec_dai, pcm);
if (ret < 0) {
printk(KERN_ERR "asoc: platform pcm constructor failed\n");
kfree(rtd);
return ret;
}
- pcm->private_free = socdev->platform->pcm_free;
+ pcm->private_free = platform->pcm_free;
printk(KERN_INFO "asoc: %s <-> %s mapping ok\n", codec_dai->name,
cpu_dai->name);
return ret;
}
/* codec register dump */
-static ssize_t codec_reg_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
{
- struct snd_soc_device *devdata = dev_get_drvdata(dev);
- struct snd_soc_codec *codec = devdata->codec;
int i, step = 1, count = 0;
if (!codec->reg_cache_size)
step = codec->reg_cache_step;
count += sprintf(buf, "%s registers\n", codec->name);
- for(i = 0; i < codec->reg_cache_size; i += step)
- count += sprintf(buf + count, "%2x: %4x\n", i, codec->read(codec, i));
+ for (i = 0; i < codec->reg_cache_size; i += step) {
+ count += sprintf(buf + count, "%2x: ", i);
+ if (count >= PAGE_SIZE - 1)
+ break;
+
+ if (codec->display_register)
+ count += codec->display_register(codec, buf + count,
+ PAGE_SIZE - count, i);
+ else
+ count += snprintf(buf + count, PAGE_SIZE - count,
+ "%4x", codec->read(codec, i));
+
+ if (count >= PAGE_SIZE - 1)
+ break;
+
+ count += snprintf(buf + count, PAGE_SIZE - count, "\n");
+ if (count >= PAGE_SIZE - 1)
+ break;
+ }
+
+ /* Truncate count; min() would cause a warning */
+ if (count >= PAGE_SIZE)
+ count = PAGE_SIZE - 1;
return count;
}
+static ssize_t codec_reg_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct snd_soc_device *devdata = dev_get_drvdata(dev);
+ return soc_codec_reg_show(devdata->card->codec, buf);
+}
+
static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
+#ifdef CONFIG_DEBUG_FS
+static int codec_reg_open_file(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ ssize_t ret;
+ struct snd_soc_codec *codec = file->private_data;
+ char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ ret = soc_codec_reg_show(codec, buf);
+ if (ret >= 0)
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t codec_reg_write_file(struct file *file,
+ const char __user *user_buf, size_t count, loff_t *ppos)
+{
+ char buf[32];
+ int buf_size;
+ char *start = buf;
+ unsigned long reg, value;
+ int step = 1;
+ struct snd_soc_codec *codec = file->private_data;
+
+ buf_size = min(count, (sizeof(buf)-1));
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ buf[buf_size] = 0;
+
+ if (codec->reg_cache_step)
+ step = codec->reg_cache_step;
+
+ while (*start == ' ')
+ start++;
+ reg = simple_strtoul(start, &start, 16);
+ if ((reg >= codec->reg_cache_size) || (reg % step))
+ return -EINVAL;
+ while (*start == ' ')
+ start++;
+ if (strict_strtoul(start, 16, &value))
+ return -EINVAL;
+ codec->write(codec, reg, value);
+ return buf_size;
+}
+
+static const struct file_operations codec_reg_fops = {
+ .open = codec_reg_open_file,
+ .read = codec_reg_read_file,
+ .write = codec_reg_write_file,
+};
+
+static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
+{
+ codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
+ debugfs_root, codec,
+ &codec_reg_fops);
+ if (!codec->debugfs_reg)
+ printk(KERN_WARNING
+ "ASoC: Failed to create codec register debugfs file\n");
+
+ codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744,
+ debugfs_root,
+ &codec->pop_time);
+ if (!codec->debugfs_pop_time)
+ printk(KERN_WARNING
+ "Failed to create pop time debugfs file\n");
+}
+
+static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
+{
+ debugfs_remove(codec->debugfs_pop_time);
+ debugfs_remove(codec->debugfs_reg);
+}
+
+#else
+
+static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
+{
+}
+
+static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
+{
+}
+#endif
+
/**
* snd_soc_new_ac97_codec - initailise AC97 device
* @codec: audio codec
EXPORT_SYMBOL_GPL(snd_soc_test_bits);
/**
- * snd_soc_get_rate - get int sample rate
- * @hwpcmrate: the hardware pcm rate
- *
- * Returns the audio rate integaer value, else 0.
- */
-int snd_soc_get_rate(int hwpcmrate)
-{
- int rate = ffs(hwpcmrate) - 1;
-
- if (rate > ARRAY_SIZE(rates))
- return 0;
- return rates[rate];
-}
-EXPORT_SYMBOL_GPL(snd_soc_get_rate);
-
-/**
* snd_soc_new_pcms - create new sound card and pcms
* @socdev: the SoC audio device
+ * @idx: ALSA card index
+ * @xid: card identification
*
* Create a new sound card based upon the codec and interface pcms.
*
* Returns 0 for success, else error.
*/
-int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char * xid)
+int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid)
{
- struct snd_soc_codec *codec = socdev->codec;
- struct snd_soc_machine *machine = socdev->machine;
- int ret = 0, i;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_codec *codec = card->codec;
+ int ret, i;
mutex_lock(&codec->mutex);
/* register a sound card */
- codec->card = snd_card_new(idx, xid, codec->owner, 0);
- if (!codec->card) {
+ ret = snd_card_create(idx, xid, codec->owner, 0, &codec->card);
+ if (ret < 0) {
printk(KERN_ERR "asoc: can't create sound card for codec %s\n",
codec->name);
mutex_unlock(&codec->mutex);
- return -ENODEV;
+ return ret;
}
codec->card->dev = socdev->dev;
strncpy(codec->card->driver, codec->name, sizeof(codec->card->driver));
/* create the pcms */
- for(i = 0; i < machine->num_links; i++) {
- ret = soc_new_pcm(socdev, &machine->dai_link[i], i);
+ for (i = 0; i < card->num_links; i++) {
+ ret = soc_new_pcm(socdev, &card->dai_link[i], i);
if (ret < 0) {
printk(KERN_ERR "asoc: can't create pcm %s\n",
- machine->dai_link[i].stream_name);
+ card->dai_link[i].stream_name);
mutex_unlock(&codec->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(snd_soc_new_pcms);
/**
- * snd_soc_register_card - register sound card
+ * snd_soc_init_card - register sound card
* @socdev: the SoC audio device
*
* Register a SoC sound card. Also registers an AC97 device if the
*
* Returns 0 for success, else error.
*/
-int snd_soc_register_card(struct snd_soc_device *socdev)
+int snd_soc_init_card(struct snd_soc_device *socdev)
{
- struct snd_soc_codec *codec = socdev->codec;
- struct snd_soc_machine *machine = socdev->machine;
+ struct snd_soc_card *card = socdev->card;
+ struct snd_soc_codec *codec = card->codec;
int ret = 0, i, ac97 = 0, err = 0;
- mutex_lock(&codec->mutex);
- for(i = 0; i < machine->num_links; i++) {
- if (socdev->machine->dai_link[i].init) {
- err = socdev->machine->dai_link[i].init(codec);
+ for (i = 0; i < card->num_links; i++) {
+ if (card->dai_link[i].init) {
+ err = card->dai_link[i].init(codec);
if (err < 0) {
printk(KERN_ERR "asoc: failed to init %s\n",
- socdev->machine->dai_link[i].stream_name);
+ card->dai_link[i].stream_name);
continue;
}
}
- if (socdev->machine->dai_link[i].cpu_dai->type == SND_SOC_DAI_AC97)
+ if (card->dai_link[i].codec_dai->ac97_control)
ac97 = 1;
}
snprintf(codec->card->shortname, sizeof(codec->card->shortname),
- "%s", machine->name);
+ "%s", card->name);
snprintf(codec->card->longname, sizeof(codec->card->longname),
- "%s (%s)", machine->name, codec->name);
+ "%s (%s)", card->name, codec->name);
ret = snd_card_register(codec->card);
if (ret < 0) {
- printk(KERN_ERR "asoc: failed to register soundcard for codec %s\n",
+ printk(KERN_ERR "asoc: failed to register soundcard for %s\n",
codec->name);
goto out;
}
+ mutex_lock(&codec->mutex);
#ifdef CONFIG_SND_SOC_AC97_BUS
- if (ac97) {
+ /* Only instantiate AC97 if not already done by the adaptor
+ * for the generic AC97 subsystem.
+ */
+ if (ac97 && strcmp(codec->name, "AC97") != 0) {
ret = soc_ac97_dev_register(codec);
if (ret < 0) {
printk(KERN_ERR "asoc: AC97 device register failed\n");
snd_card_free(codec->card);
+ mutex_unlock(&codec->mutex);
goto out;
}
}
err = device_create_file(socdev->dev, &dev_attr_codec_reg);
if (err < 0)
- printk(KERN_WARNING "asoc: failed to add codec sysfs entries\n");
-out:
+ printk(KERN_WARNING "asoc: failed to add codec sysfs files\n");
+
+ soc_init_codec_debugfs(codec);
mutex_unlock(&codec->mutex);
+
+out:
return ret;
}
-EXPORT_SYMBOL_GPL(snd_soc_register_card);
+EXPORT_SYMBOL_GPL(snd_soc_init_card);
/**
* snd_soc_free_pcms - free sound card and pcms
*/
void snd_soc_free_pcms(struct snd_soc_device *socdev)
{
- struct snd_soc_codec *codec = socdev->codec;
+ struct snd_soc_codec *codec = socdev->card->codec;
+#ifdef CONFIG_SND_SOC_AC97_BUS
+ struct snd_soc_dai *codec_dai;
+ int i;
+#endif
mutex_lock(&codec->mutex);
+ soc_cleanup_codec_debugfs(codec);
#ifdef CONFIG_SND_SOC_AC97_BUS
- if (codec->ac97)
- soc_ac97_dev_unregister(codec);
+ for (i = 0; i < codec->num_dai; i++) {
+ codec_dai = &codec->dai[i];
+ if (codec_dai->ac97_control && codec->ac97 &&
+ strcmp(codec->name, "AC97") != 0) {
+ soc_ac97_dev_unregister(codec);
+ goto free_card;
+ }
+ }
+free_card:
#endif
if (codec->card)
* snd_soc_cnew - create new control
* @_template: control template
* @data: control private data
- * @lnng_name: control long name
+ * @long_name: control long name
*
* Create a new mixer control from a template control.
*
memcpy(&template, _template, sizeof(template));
if (long_name)
template.name = long_name;
- template.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
template.index = 0;
return snd_ctl_new1(&template, data);
EXPORT_SYMBOL_GPL(snd_soc_cnew);
/**
+ * snd_soc_add_controls - add an array of controls to a codec.
+ * Convienience function to add a list of controls. Many codecs were
+ * duplicating this code.
+ *
+ * @codec: codec to add controls to
+ * @controls: array of controls to add
+ * @num_controls: number of elements in the array
+ *
+ * Return 0 for success, else error.
+ */
+int snd_soc_add_controls(struct snd_soc_codec *codec,
+ const struct snd_kcontrol_new *controls, int num_controls)
+{
+ struct snd_card *card = codec->card;
+ int err, i;
+
+ for (i = 0; i < num_controls; i++) {
+ const struct snd_kcontrol_new *control = &controls[i];
+ err = snd_ctl_add(card, snd_soc_cnew(control, codec, NULL));
+ if (err < 0) {
+ dev_err(codec->dev, "%s: Failed to add %s\n",
+ codec->name, control->name);
+ return err;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_add_controls);
+
+/**
* snd_soc_info_enum_double - enumerated double mixer info callback
* @kcontrol: mixer control
* @uinfo: control element information
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
- uinfo->value.enumerated.items = e->mask;
+ uinfo->value.enumerated.items = e->max;
- if (uinfo->value.enumerated.item > e->mask - 1)
- uinfo->value.enumerated.item = e->mask - 1;
+ if (uinfo->value.enumerated.item > e->max - 1)
+ uinfo->value.enumerated.item = e->max - 1;
strcpy(uinfo->value.enumerated.name,
e->texts[uinfo->value.enumerated.item]);
return 0;
/**
* snd_soc_get_enum_double - enumerated double mixer get callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to get the value of a double enumerated mixer.
*
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned short val, bitmask;
- for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
+ for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
;
val = snd_soc_read(codec, e->reg);
- ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
+ 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);
/**
* snd_soc_put_enum_double - enumerated double mixer put callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to set the value of a double enumerated mixer.
*
unsigned short val;
unsigned short mask, bitmask;
- for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
+ for (bitmask = 1; bitmask < e->max; bitmask <<= 1)
;
- if (ucontrol->value.enumerated.item[0] > e->mask - 1)
+ if (ucontrol->value.enumerated.item[0] > e->max - 1)
return -EINVAL;
val = ucontrol->value.enumerated.item[0] << e->shift_l;
mask = (bitmask - 1) << e->shift_l;
if (e->shift_l != e->shift_r) {
- if (ucontrol->value.enumerated.item[1] > e->mask - 1)
+ if (ucontrol->value.enumerated.item[1] > e->max - 1)
return -EINVAL;
val |= ucontrol->value.enumerated.item[1] << e->shift_r;
mask |= (bitmask - 1) << e->shift_r;
EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
/**
+ * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a double semi enumerated mixer.
+ *
+ * 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_get_value_enum_double(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned short reg_val, val, mux;
+
+ reg_val = snd_soc_read(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_get_value_enum_double);
+
+/**
+ * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a double semi enumerated mixer.
+ *
+ * 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_put_value_enum_double(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned short val;
+ unsigned short mask;
+
+ if (ucontrol->value.enumerated.item[0] > e->max - 1)
+ return -EINVAL;
+ 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;
+ }
+
+ return snd_soc_update_bits(codec, e->reg, mask, val);
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
+
+/**
* snd_soc_info_enum_ext - external enumerated single mixer info callback
* @kcontrol: mixer control
* @uinfo: control element information
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
- uinfo->value.enumerated.items = e->mask;
+ uinfo->value.enumerated.items = e->max;
- if (uinfo->value.enumerated.item > e->mask - 1)
- uinfo->value.enumerated.item = e->mask - 1;
+ if (uinfo->value.enumerated.item > e->max - 1)
+ uinfo->value.enumerated.item = e->max - 1;
strcpy(uinfo->value.enumerated.name,
e->texts[uinfo->value.enumerated.item]);
return 0;
int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
- int mask = kcontrol->private_value;
+ int max = kcontrol->private_value;
- uinfo->type =
- mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->count = 1;
- uinfo->value.integer.min = 0;
- uinfo->value.integer.max = mask;
- return 0;
-}
-EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
+ if (max == 1)
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ else
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
-/**
- * snd_soc_info_bool_ext - external single boolean mixer info callback
- * @kcontrol: mixer control
- * @uinfo: control element information
- *
- * Callback to provide information about a single boolean external mixer control.
- *
- * Returns 0 for success.
- */
-int snd_soc_info_bool_ext(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;
+ uinfo->value.integer.max = max;
return 0;
}
-EXPORT_SYMBOL_GPL(snd_soc_info_bool_ext);
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext);
/**
* snd_soc_info_volsw - single mixer info callback
int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
- int mask = (kcontrol->private_value >> 16) & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0x0f;
- int rshift = (kcontrol->private_value >> 12) & 0x0f;
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ int max = mc->max;
+ unsigned int shift = mc->shift;
+ unsigned int rshift = mc->rshift;
+
+ if (max == 1)
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ else
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->type =
- mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = shift == rshift ? 1 : 2;
uinfo->value.integer.min = 0;
- uinfo->value.integer.max = mask;
+ uinfo->value.integer.max = max;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
/**
* snd_soc_get_volsw - single mixer get callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to get the value of a single mixer control.
*
int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0x0f;
- int rshift = (kcontrol->private_value >> 12) & 0x0f;
- int mask = (kcontrol->private_value >> 16) & 0xff;
- int invert = (kcontrol->private_value >> 24) & 0x01;
+ unsigned int reg = mc->reg;
+ unsigned int shift = mc->shift;
+ unsigned int rshift = mc->rshift;
+ int max = mc->max;
+ unsigned int mask = (1 << fls(max)) - 1;
+ unsigned int invert = mc->invert;
ucontrol->value.integer.value[0] =
(snd_soc_read(codec, reg) >> shift) & mask;
(snd_soc_read(codec, reg) >> rshift) & mask;
if (invert) {
ucontrol->value.integer.value[0] =
- mask - ucontrol->value.integer.value[0];
+ max - ucontrol->value.integer.value[0];
if (shift != rshift)
ucontrol->value.integer.value[1] =
- mask - ucontrol->value.integer.value[1];
+ max - ucontrol->value.integer.value[1];
}
return 0;
/**
* snd_soc_put_volsw - single mixer put callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to set the value of a single mixer control.
*
int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0x0f;
- int rshift = (kcontrol->private_value >> 12) & 0x0f;
- int mask = (kcontrol->private_value >> 16) & 0xff;
- int invert = (kcontrol->private_value >> 24) & 0x01;
- int err;
+ unsigned int reg = mc->reg;
+ unsigned int shift = mc->shift;
+ unsigned int rshift = mc->rshift;
+ int max = mc->max;
+ unsigned int mask = (1 << fls(max)) - 1;
+ unsigned int invert = mc->invert;
unsigned short val, val2, val_mask;
val = (ucontrol->value.integer.value[0] & mask);
if (invert)
- val = mask - val;
+ val = max - val;
val_mask = mask << shift;
val = val << shift;
if (shift != rshift) {
val2 = (ucontrol->value.integer.value[1] & mask);
if (invert)
- val2 = mask - val2;
+ val2 = max - val2;
val_mask |= mask << rshift;
val |= val2 << rshift;
}
- err = snd_soc_update_bits(codec, reg, val_mask, val);
- return err;
+ return snd_soc_update_bits(codec, reg, val_mask, val);
}
EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
- int mask = (kcontrol->private_value >> 12) & 0xff;
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ int max = mc->max;
+
+ if (max == 1)
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ else
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- uinfo->type =
- mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
- uinfo->value.integer.max = mask;
+ uinfo->value.integer.max = max;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_info_volsw_2r);
/**
* snd_soc_get_volsw_2r - double mixer get callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to get the value of a double mixer control that spans 2 registers.
*
int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value & 0xff;
- int reg2 = (kcontrol->private_value >> 24) & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0x0f;
- int mask = (kcontrol->private_value >> 12) & 0xff;
- int invert = (kcontrol->private_value >> 20) & 0x01;
+ unsigned int reg = mc->reg;
+ unsigned int reg2 = mc->rreg;
+ unsigned int shift = mc->shift;
+ int max = mc->max;
+ unsigned int mask = (1<<fls(max))-1;
+ unsigned int invert = mc->invert;
ucontrol->value.integer.value[0] =
(snd_soc_read(codec, reg) >> shift) & mask;
(snd_soc_read(codec, reg2) >> shift) & mask;
if (invert) {
ucontrol->value.integer.value[0] =
- mask - ucontrol->value.integer.value[0];
+ max - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] =
- mask - ucontrol->value.integer.value[1];
+ max - ucontrol->value.integer.value[1];
}
return 0;
/**
* snd_soc_put_volsw_2r - double mixer set callback
* @kcontrol: mixer control
- * @uinfo: control element information
+ * @ucontrol: control element information
*
* Callback to set the value of a double mixer control that spans 2 registers.
*
int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- int reg = kcontrol->private_value & 0xff;
- int reg2 = (kcontrol->private_value >> 24) & 0xff;
- int shift = (kcontrol->private_value >> 8) & 0x0f;
- int mask = (kcontrol->private_value >> 12) & 0xff;
- int invert = (kcontrol->private_value >> 20) & 0x01;
+ unsigned int reg = mc->reg;
+ unsigned int reg2 = mc->rreg;
+ unsigned int shift = mc->shift;
+ int max = mc->max;
+ unsigned int mask = (1 << fls(max)) - 1;
+ unsigned int invert = mc->invert;
int err;
unsigned short val, val2, val_mask;
val2 = (ucontrol->value.integer.value[1] & mask);
if (invert) {
- val = mask - val;
- val2 = mask - val2;
+ val = max - val;
+ val2 = max - val2;
}
val = val << shift;
val2 = val2 << shift;
- if ((err = snd_soc_update_bits(codec, reg, val_mask, val)) < 0)
+ err = snd_soc_update_bits(codec, reg, val_mask, val);
+ if (err < 0)
return err;
err = snd_soc_update_bits(codec, reg2, val_mask, val2);
}
EXPORT_SYMBOL_GPL(snd_soc_put_volsw_2r);
-static int __devinit snd_soc_init(void)
+/**
+ * snd_soc_info_volsw_s8 - signed mixer info callback
+ * @kcontrol: mixer control
+ * @uinfo: control element information
+ *
+ * Callback to provide information about a signed mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ int max = mc->max;
+ int min = mc->min;
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = max-min;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
+
+/**
+ * snd_soc_get_volsw_s8 - signed mixer get callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to get the value of a signed mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ unsigned int reg = mc->reg;
+ int min = mc->min;
+ int val = snd_soc_read(codec, reg);
+
+ ucontrol->value.integer.value[0] =
+ ((signed char)(val & 0xff))-min;
+ ucontrol->value.integer.value[1] =
+ ((signed char)((val >> 8) & 0xff))-min;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
+
+/**
+ * snd_soc_put_volsw_sgn - signed mixer put callback
+ * @kcontrol: mixer control
+ * @ucontrol: control element information
+ *
+ * Callback to set the value of a signed mixer control.
+ *
+ * Returns 0 for success.
+ */
+int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ unsigned int reg = mc->reg;
+ int min = mc->min;
+ unsigned short val;
+
+ val = (ucontrol->value.integer.value[0]+min) & 0xff;
+ val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
+
+ return snd_soc_update_bits(codec, reg, 0xffff, val);
+}
+EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
+
+/**
+ * snd_soc_dai_set_sysclk - configure DAI system or master clock.
+ * @dai: DAI
+ * @clk_id: DAI specific clock ID
+ * @freq: new clock frequency in Hz
+ * @dir: new clock direction - input/output.
+ *
+ * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
+ */
+int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ if (dai->ops->set_sysclk)
+ return dai->ops->set_sysclk(dai, clk_id, freq, dir);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
+
+/**
+ * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
+ * @dai: DAI
+ * @div_id: DAI specific clock divider ID
+ * @div: new clock divisor.
+ *
+ * Configures the clock dividers. This is used to derive the best DAI bit and
+ * frame clocks from the system or master clock. It's best to set the DAI bit
+ * and frame clocks as low as possible to save system power.
+ */
+int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
+ int div_id, int div)
{
- printk(KERN_INFO "ASoC version %s\n", SND_SOC_VERSION);
+ if (dai->ops->set_clkdiv)
+ return dai->ops->set_clkdiv(dai, div_id, div);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
+
+/**
+ * snd_soc_dai_set_pll - configure DAI PLL.
+ * @dai: DAI
+ * @pll_id: DAI specific PLL ID
+ * @freq_in: PLL input clock frequency in Hz
+ * @freq_out: requested PLL output clock frequency in Hz
+ *
+ * Configures and enables PLL to generate output clock based on input clock.
+ */
+int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
+ int pll_id, unsigned int freq_in, unsigned int freq_out)
+{
+ if (dai->ops->set_pll)
+ return dai->ops->set_pll(dai, pll_id, freq_in, freq_out);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
+
+/**
+ * snd_soc_dai_set_fmt - configure DAI hardware audio format.
+ * @dai: DAI
+ * @fmt: SND_SOC_DAIFMT_ format value.
+ *
+ * Configures the DAI hardware format and clocking.
+ */
+int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ if (dai->ops->set_fmt)
+ return dai->ops->set_fmt(dai, fmt);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
+
+/**
+ * snd_soc_dai_set_tdm_slot - configure DAI TDM.
+ * @dai: DAI
+ * @mask: DAI specific mask representing used slots.
+ * @slots: Number of slots in use.
+ *
+ * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
+ * specific.
+ */
+int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int mask, int slots)
+{
+ if (dai->ops->set_sysclk)
+ return dai->ops->set_tdm_slot(dai, mask, slots);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
+
+/**
+ * snd_soc_dai_set_tristate - configure DAI system or master clock.
+ * @dai: DAI
+ * @tristate: tristate enable
+ *
+ * Tristates the DAI so that others can use it.
+ */
+int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
+{
+ if (dai->ops->set_sysclk)
+ return dai->ops->set_tristate(dai, tristate);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
+
+/**
+ * snd_soc_dai_digital_mute - configure DAI system or master clock.
+ * @dai: DAI
+ * @mute: mute enable
+ *
+ * Mutes the DAI DAC.
+ */
+int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
+{
+ if (dai->ops->digital_mute)
+ return dai->ops->digital_mute(dai, mute);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
+
+/**
+ * snd_soc_register_card - Register a card with the ASoC core
+ *
+ * @card: Card to register
+ *
+ * Note that currently this is an internal only function: it will be
+ * exposed to machine drivers after further backporting of ASoC v2
+ * registration APIs.
+ */
+static int snd_soc_register_card(struct snd_soc_card *card)
+{
+ if (!card->name || !card->dev)
+ return -EINVAL;
+
+ INIT_LIST_HEAD(&card->list);
+ card->instantiated = 0;
+
+ mutex_lock(&client_mutex);
+ list_add(&card->list, &card_list);
+ snd_soc_instantiate_cards();
+ mutex_unlock(&client_mutex);
+
+ dev_dbg(card->dev, "Registered card '%s'\n", card->name);
+
+ return 0;
+}
+
+/**
+ * snd_soc_unregister_card - Unregister a card with the ASoC core
+ *
+ * @card: Card to unregister
+ *
+ * Note that currently this is an internal only function: it will be
+ * exposed to machine drivers after further backporting of ASoC v2
+ * registration APIs.
+ */
+static int snd_soc_unregister_card(struct snd_soc_card *card)
+{
+ mutex_lock(&client_mutex);
+ list_del(&card->list);
+ mutex_unlock(&client_mutex);
+
+ dev_dbg(card->dev, "Unregistered card '%s'\n", card->name);
+
+ return 0;
+}
+
+static struct snd_soc_dai_ops null_dai_ops = {
+};
+
+/**
+ * snd_soc_register_dai - Register a DAI with the ASoC core
+ *
+ * @dai: DAI to register
+ */
+int snd_soc_register_dai(struct snd_soc_dai *dai)
+{
+ if (!dai->name)
+ return -EINVAL;
+
+ /* The device should become mandatory over time */
+ if (!dai->dev)
+ printk(KERN_WARNING "No device for DAI %s\n", dai->name);
+
+ if (!dai->ops)
+ dai->ops = &null_dai_ops;
+
+ INIT_LIST_HEAD(&dai->list);
+
+ mutex_lock(&client_mutex);
+ list_add(&dai->list, &dai_list);
+ snd_soc_instantiate_cards();
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Registered DAI '%s'\n", dai->name);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_register_dai);
+
+/**
+ * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
+ *
+ * @dai: DAI to unregister
+ */
+void snd_soc_unregister_dai(struct snd_soc_dai *dai)
+{
+ mutex_lock(&client_mutex);
+ list_del(&dai->list);
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Unregistered DAI '%s'\n", dai->name);
+}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_dai);
+
+/**
+ * snd_soc_register_dais - Register multiple DAIs with the ASoC core
+ *
+ * @dai: Array of DAIs to register
+ * @count: Number of DAIs
+ */
+int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count)
+{
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ ret = snd_soc_register_dai(&dai[i]);
+ if (ret != 0)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ for (i--; i >= 0; i--)
+ snd_soc_unregister_dai(&dai[i]);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_register_dais);
+
+/**
+ * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
+ *
+ * @dai: Array of DAIs to unregister
+ * @count: Number of DAIs
+ */
+void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count)
+{
+ int i;
+
+ for (i = 0; i < count; i++)
+ snd_soc_unregister_dai(&dai[i]);
+}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_dais);
+
+/**
+ * snd_soc_register_platform - Register a platform with the ASoC core
+ *
+ * @platform: platform to register
+ */
+int snd_soc_register_platform(struct snd_soc_platform *platform)
+{
+ if (!platform->name)
+ return -EINVAL;
+
+ INIT_LIST_HEAD(&platform->list);
+
+ mutex_lock(&client_mutex);
+ list_add(&platform->list, &platform_list);
+ snd_soc_instantiate_cards();
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Registered platform '%s'\n", platform->name);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_register_platform);
+
+/**
+ * snd_soc_unregister_platform - Unregister a platform from the ASoC core
+ *
+ * @platform: platform to unregister
+ */
+void snd_soc_unregister_platform(struct snd_soc_platform *platform)
+{
+ mutex_lock(&client_mutex);
+ list_del(&platform->list);
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Unregistered platform '%s'\n", platform->name);
+}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
+
+/**
+ * snd_soc_register_codec - Register a codec with the ASoC core
+ *
+ * @codec: codec to register
+ */
+int snd_soc_register_codec(struct snd_soc_codec *codec)
+{
+ if (!codec->name)
+ return -EINVAL;
+
+ /* The device should become mandatory over time */
+ if (!codec->dev)
+ printk(KERN_WARNING "No device for codec %s\n", codec->name);
+
+ INIT_LIST_HEAD(&codec->list);
+
+ mutex_lock(&client_mutex);
+ list_add(&codec->list, &codec_list);
+ snd_soc_instantiate_cards();
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Registered codec '%s'\n", codec->name);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_register_codec);
+
+/**
+ * snd_soc_unregister_codec - Unregister a codec from the ASoC core
+ *
+ * @codec: codec to unregister
+ */
+void snd_soc_unregister_codec(struct snd_soc_codec *codec)
+{
+ mutex_lock(&client_mutex);
+ list_del(&codec->list);
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Unregistered codec '%s'\n", codec->name);
+}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
+
+static int __init snd_soc_init(void)
+{
+#ifdef CONFIG_DEBUG_FS
+ debugfs_root = debugfs_create_dir("asoc", NULL);
+ if (IS_ERR(debugfs_root) || !debugfs_root) {
+ printk(KERN_WARNING
+ "ASoC: Failed to create debugfs directory\n");
+ debugfs_root = NULL;
+ }
+#endif
+
return platform_driver_register(&soc_driver);
}
-static void snd_soc_exit(void)
+static void __exit snd_soc_exit(void)
{
- platform_driver_unregister(&soc_driver);
+#ifdef CONFIG_DEBUG_FS
+ debugfs_remove_recursive(debugfs_root);
+#endif
+ platform_driver_unregister(&soc_driver);
}
module_init(snd_soc_init);
module_exit(snd_soc_exit);
/* Module information */
-MODULE_AUTHOR("Liam Girdwood, liam.girdwood@wolfsonmicro.com, www.wolfsonmicro.com");
+MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
MODULE_DESCRIPTION("ALSA SoC Core");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:soc-audio");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff