From f873e536b6354214f80776382c3779b75e9e145f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 20 Dec 2012 16:58:39 +0100 Subject: [PATCH] ALSA: hda - Fix PCM name string for generic parser When a PCM name string is generated from the chip name, it might become strange like "CX20549 (Venice) Analog". In this patch, the parser tries to drop the invalid words like "(Venice)" in the PCM name string. Also, when the name string is given beforehand by the caller, respect it and use it as is. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_generic.c | 32 +++++++++++++++++++++++++++----- 1 file changed, 27 insertions(+), 5 deletions(-) diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index f4b5043..d4cb9df6 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #include #include #include "hda_codec.h" @@ -3230,6 +3232,25 @@ static const struct hda_pcm_stream dyn_adc_pcm_analog_capture = { }, }; +static void fill_pcm_stream_name(char *str, size_t len, const char *sfx, + const char *chip_name) +{ + char *p; + + if (*str) + return; + strlcpy(str, chip_name, len); + + /* drop non-alnum chars after a space */ + for (p = strchr(str, ' '); p; p = strchr(p + 1, ' ')) { + if (!isalnum(p[1])) { + *p = 0; + break; + } + } + strlcat(str, sfx, len); +} + /* build PCM streams based on the parsed results */ int snd_hda_gen_build_pcms(struct hda_codec *codec) { @@ -3245,8 +3266,9 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec) if (spec->no_analog) goto skip_analog; - snprintf(spec->stream_name_analog, sizeof(spec->stream_name_analog), - "%s Analog", codec->chip_name); + fill_pcm_stream_name(spec->stream_name_analog, + sizeof(spec->stream_name_analog), + " Analog", codec->chip_name); info->name = spec->stream_name_analog; if (spec->multiout.num_dacs > 0) { @@ -3286,9 +3308,9 @@ int snd_hda_gen_build_pcms(struct hda_codec *codec) skip_analog: /* SPDIF for stream index #1 */ if (spec->multiout.dig_out_nid || spec->dig_in_nid) { - snprintf(spec->stream_name_digital, - sizeof(spec->stream_name_digital), - "%s Digital", codec->chip_name); + fill_pcm_stream_name(spec->stream_name_digital, + sizeof(spec->stream_name_digital), + " Digital", codec->chip_name); codec->num_pcms = 2; codec->slave_dig_outs = spec->multiout.slave_dig_outs; info = spec->pcm_rec + 1; -- 2.7.4