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-rw-r--r--sound/hda/hda_bus_type.c2
-rw-r--r--sound/hda/hdac_device.c156
2 files changed, 113 insertions, 45 deletions
diff --git a/sound/hda/hda_bus_type.c b/sound/hda/hda_bus_type.c
index 4cd94178df..cce2c30511 100644
--- a/sound/hda/hda_bus_type.c
+++ b/sound/hda/hda_bus_type.c
@@ -76,7 +76,7 @@ static int hda_uevent(const struct device *dev, struct kobj_uevent_env *env)
return 0;
}
-struct bus_type snd_hda_bus_type = {
+const struct bus_type snd_hda_bus_type = {
.name = "hdaudio",
.match = hda_bus_match,
.uevent = hda_uevent,
diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c
index bbf7bcdb44..7f7b67fe1b 100644
--- a/sound/hda/hdac_device.c
+++ b/sound/hda/hdac_device.c
@@ -13,6 +13,7 @@
#include <sound/hdaudio.h>
#include <sound/hda_regmap.h>
#include <sound/pcm.h>
+#include <sound/pcm_params.h>
#include "local.h"
static void setup_fg_nodes(struct hdac_device *codec);
@@ -725,32 +726,77 @@ static const struct hda_rate_tbl rate_bits[] = {
{ 0 } /* terminator */
};
+static snd_pcm_format_t snd_hdac_format_normalize(snd_pcm_format_t format)
+{
+ switch (format) {
+ case SNDRV_PCM_FORMAT_S20_LE:
+ case SNDRV_PCM_FORMAT_S24_LE:
+ return SNDRV_PCM_FORMAT_S32_LE;
+
+ case SNDRV_PCM_FORMAT_U20_LE:
+ case SNDRV_PCM_FORMAT_U24_LE:
+ return SNDRV_PCM_FORMAT_U32_LE;
+
+ case SNDRV_PCM_FORMAT_S20_BE:
+ case SNDRV_PCM_FORMAT_S24_BE:
+ return SNDRV_PCM_FORMAT_S32_BE;
+
+ case SNDRV_PCM_FORMAT_U20_BE:
+ case SNDRV_PCM_FORMAT_U24_BE:
+ return SNDRV_PCM_FORMAT_U32_BE;
+
+ default:
+ return format;
+ }
+}
+
/**
- * snd_hdac_calc_stream_format - calculate the format bitset
- * @rate: the sample rate
- * @channels: the number of channels
- * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
- * @maxbps: the max. bps
- * @spdif_ctls: HD-audio SPDIF status bits (0 if irrelevant)
+ * snd_hdac_stream_format_bits - obtain bits per sample value.
+ * @format: the PCM format.
+ * @subformat: the PCM subformat.
+ * @maxbits: the maximum bits per sample.
*
- * Calculate the format bitset from the given rate, channels and th PCM format.
+ * Return: The number of bits per sample.
+ */
+unsigned int snd_hdac_stream_format_bits(snd_pcm_format_t format, snd_pcm_subformat_t subformat,
+ unsigned int maxbits)
+{
+ struct snd_pcm_hw_params params;
+ unsigned int bits;
+
+ memset(&params, 0, sizeof(params));
+
+ params_set_format(&params, snd_hdac_format_normalize(format));
+ snd_mask_set(hw_param_mask(&params, SNDRV_PCM_HW_PARAM_SUBFORMAT),
+ (__force unsigned int)subformat);
+
+ bits = snd_pcm_hw_params_bits(&params);
+ if (maxbits)
+ return min(bits, maxbits);
+ return bits;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_stream_format_bits);
+
+/**
+ * snd_hdac_stream_format - convert format parameters to SDxFMT value.
+ * @channels: the number of channels.
+ * @bits: bits per sample.
+ * @rate: the sample rate.
*
- * Return zero if invalid.
+ * Return: The format bitset or zero if invalid.
*/
-unsigned int snd_hdac_calc_stream_format(unsigned int rate,
- unsigned int channels,
- snd_pcm_format_t format,
- unsigned int maxbps,
- unsigned short spdif_ctls)
+unsigned int snd_hdac_stream_format(unsigned int channels, unsigned int bits, unsigned int rate)
{
- int i;
unsigned int val = 0;
+ int i;
- for (i = 0; rate_bits[i].hz; i++)
+ for (i = 0; rate_bits[i].hz; i++) {
if (rate_bits[i].hz == rate) {
val = rate_bits[i].hda_fmt;
break;
}
+ }
+
if (!rate_bits[i].hz)
return 0;
@@ -758,7 +804,7 @@ unsigned int snd_hdac_calc_stream_format(unsigned int rate,
return 0;
val |= channels - 1;
- switch (snd_pcm_format_width(format)) {
+ switch (bits) {
case 8:
val |= AC_FMT_BITS_8;
break;
@@ -766,25 +812,42 @@ unsigned int snd_hdac_calc_stream_format(unsigned int rate,
val |= AC_FMT_BITS_16;
break;
case 20:
+ val |= AC_FMT_BITS_20;
+ break;
case 24:
+ val |= AC_FMT_BITS_24;
+ break;
case 32:
- if (maxbps >= 32 || format == SNDRV_PCM_FORMAT_FLOAT_LE)
- val |= AC_FMT_BITS_32;
- else if (maxbps >= 24)
- val |= AC_FMT_BITS_24;
- else
- val |= AC_FMT_BITS_20;
+ val |= AC_FMT_BITS_32;
break;
default:
return 0;
}
- if (spdif_ctls & AC_DIG1_NONAUDIO)
+ return val;
+}
+EXPORT_SYMBOL_GPL(snd_hdac_stream_format);
+
+/**
+ * snd_hdac_spdif_stream_format - convert format parameters to SDxFMT value.
+ * @channels: the number of channels.
+ * @bits: bits per sample.
+ * @rate: the sample rate.
+ * @spdif_ctls: HD-audio SPDIF status bits (0 if irrelevant).
+ *
+ * Return: The format bitset or zero if invalid.
+ */
+unsigned int snd_hdac_spdif_stream_format(unsigned int channels, unsigned int bits,
+ unsigned int rate, unsigned short spdif_ctls)
+{
+ unsigned int val = snd_hdac_stream_format(channels, bits, rate);
+
+ if (val && spdif_ctls & AC_DIG1_NONAUDIO)
val |= AC_FMT_TYPE_NON_PCM;
return val;
}
-EXPORT_SYMBOL_GPL(snd_hdac_calc_stream_format);
+EXPORT_SYMBOL_GPL(snd_hdac_spdif_stream_format);
static unsigned int query_pcm_param(struct hdac_device *codec, hda_nid_t nid)
{
@@ -817,15 +880,17 @@ static unsigned int query_stream_param(struct hdac_device *codec, hda_nid_t nid)
* @nid: NID to query
* @ratesp: the pointer to store the detected rate bitflags
* @formatsp: the pointer to store the detected formats
+ * @subformatsp: the pointer to store the detected subformats for S32_LE format
* @bpsp: the pointer to store the detected format widths
*
- * Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp
- * or @bsps argument is ignored.
+ * Queries the supported PCM rates and formats. The NULL @ratesp, @formatsp,
+ * @subformatsp or @bpsp argument is ignored.
*
* Returns 0 if successful, otherwise a negative error code.
*/
int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,
- u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
+ u32 *ratesp, u64 *formatsp, u32 *subformatsp,
+ unsigned int *bpsp)
{
unsigned int i, val, wcaps;
@@ -848,9 +913,10 @@ int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,
*ratesp = rates;
}
- if (formatsp || bpsp) {
- u64 formats = 0;
+ if (formatsp || subformatsp || bpsp) {
unsigned int streams, bps;
+ u32 subformats = 0;
+ u64 formats = 0;
streams = query_stream_param(codec, nid);
if (!streams)
@@ -866,24 +932,24 @@ int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,
formats |= SNDRV_PCM_FMTBIT_S16_LE;
bps = 16;
}
- if (wcaps & AC_WCAP_DIGITAL) {
- if (val & AC_SUPPCM_BITS_32)
+ if (val & AC_SUPPCM_BITS_20) {
+ formats |= SNDRV_PCM_FMTBIT_S32_LE;
+ subformats |= SNDRV_PCM_SUBFMTBIT_MSBITS_20;
+ bps = 20;
+ }
+ if (val & AC_SUPPCM_BITS_24) {
+ formats |= SNDRV_PCM_FMTBIT_S32_LE;
+ subformats |= SNDRV_PCM_SUBFMTBIT_MSBITS_24;
+ bps = 24;
+ }
+ if (val & AC_SUPPCM_BITS_32) {
+ if (wcaps & AC_WCAP_DIGITAL) {
formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
- if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
+ } else {
formats |= SNDRV_PCM_FMTBIT_S32_LE;
- if (val & AC_SUPPCM_BITS_24)
- bps = 24;
- else if (val & AC_SUPPCM_BITS_20)
- bps = 20;
- } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
- AC_SUPPCM_BITS_32)) {
- formats |= SNDRV_PCM_FMTBIT_S32_LE;
- if (val & AC_SUPPCM_BITS_32)
+ subformats |= SNDRV_PCM_SUBFMTBIT_MSBITS_MAX;
bps = 32;
- else if (val & AC_SUPPCM_BITS_24)
- bps = 24;
- else if (val & AC_SUPPCM_BITS_20)
- bps = 20;
+ }
}
}
#if 0 /* FIXME: CS4206 doesn't work, which is the only codec supporting float */
@@ -911,6 +977,8 @@ int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,
}
if (formatsp)
*formatsp = formats;
+ if (subformatsp)
+ *subformatsp = subformats;
if (bpsp)
*bpsp = bps;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 13:42:49 +0000