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Re: [greybus-dev] [PATCH 3/3] [PATCH] staging: greybus: __u8 is sufficient for snd_ctl_elem_type_t and snd_ctl_elem_iface_t
by Alex Elder 24 Sep '20

24 Sep '20

On 9/24/20 5:20 AM, Coiby Xu wrote: > Use __8 to replace int and remove the unnecessary __bitwise type attribute. > > Found by sparse, Greg's right, don't change the public header. You could try this in the Greybus code to eliminate the warning, but I haven't tried it (and for all I know it's not a good idea): uinfo->type = (__force snd_ctl_elem_type_t)info->type; -Alex > $ make C=2 drivers/staging/greybus/ > drivers/staging/greybus/audio_topology.c:185:24: warning: cast to restricted snd_ctl_elem_type_t > drivers/staging/greybus/audio_topology.c:679:14: warning: restricted snd_ctl_elem_iface_t degrades to integer > drivers/staging/greybus/audio_topology.c:906:14: warning: restricted snd_ctl_elem_iface_t degrades to integer > > Signed-off-by: Coiby Xu <coiby.xu(a)gmail.com> > --- > drivers/staging/greybus/audio_topology.c | 2 +- > include/uapi/sound/asound.h | 4 ++-- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c > index 56bf1a4f95ad..f6023ff390c2 100644 > --- a/drivers/staging/greybus/audio_topology.c > +++ b/drivers/staging/greybus/audio_topology.c > @@ -182,7 +182,7 @@ static int gbcodec_mixer_ctl_info(struct snd_kcontrol *kcontrol, > /* update uinfo */ > uinfo->access = data->access; > uinfo->count = data->vcount; > - uinfo->type = (snd_ctl_elem_type_t)info->type; > + uinfo->type = info->type; > > switch (info->type) { > case GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN: > diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h > index 535a7229e1d9..8e71a95644ab 100644 > --- a/include/uapi/sound/asound.h > +++ b/include/uapi/sound/asound.h > @@ -950,7 +950,7 @@ struct snd_ctl_card_info { > unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ > }; > > -typedef int __bitwise snd_ctl_elem_type_t; > +typedef __u8 snd_ctl_elem_type_t; > #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ > #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ > #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ > @@ -960,7 +960,7 @@ typedef int __bitwise snd_ctl_elem_type_t; > #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ > #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 > > -typedef int __bitwise snd_ctl_elem_iface_t; > +typedef __u8 snd_ctl_elem_iface_t; > #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ > #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ > #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ >

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Re: [PATCH 3/3] [PATCH] staging: greybus: __u8 is sufficient for snd_ctl_elem_type_t and snd_ctl_elem_iface_t
by Greg Kroah-Hartman 24 Sep '20

24 Sep '20

On Thu, Sep 24, 2020 at 06:20:39PM +0800, Coiby Xu wrote: > Use __8 to replace int and remove the unnecessary __bitwise type attribute. > > Found by sparse, > > $ make C=2 drivers/staging/greybus/ > drivers/staging/greybus/audio_topology.c:185:24: warning: cast to restricted snd_ctl_elem_type_t > drivers/staging/greybus/audio_topology.c:679:14: warning: restricted snd_ctl_elem_iface_t degrades to integer > drivers/staging/greybus/audio_topology.c:906:14: warning: restricted snd_ctl_elem_iface_t degrades to integer > > Signed-off-by: Coiby Xu <coiby.xu(a)gmail.com> > --- > drivers/staging/greybus/audio_topology.c | 2 +- > include/uapi/sound/asound.h | 4 ++-- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c > index 56bf1a4f95ad..f6023ff390c2 100644 > --- a/drivers/staging/greybus/audio_topology.c > +++ b/drivers/staging/greybus/audio_topology.c > @@ -182,7 +182,7 @@ static int gbcodec_mixer_ctl_info(struct snd_kcontrol *kcontrol, > /* update uinfo */ > uinfo->access = data->access; > uinfo->count = data->vcount; > - uinfo->type = (snd_ctl_elem_type_t)info->type; > + uinfo->type = info->type; > > switch (info->type) { > case GB_AUDIO_CTL_ELEM_TYPE_BOOLEAN: > diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h > index 535a7229e1d9..8e71a95644ab 100644 > --- a/include/uapi/sound/asound.h > +++ b/include/uapi/sound/asound.h > @@ -950,7 +950,7 @@ struct snd_ctl_card_info { > unsigned char components[128]; /* card components / fine identification, delimited with one space (AC97 etc..) */ > }; > > -typedef int __bitwise snd_ctl_elem_type_t; > +typedef __u8 snd_ctl_elem_type_t; > #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ > #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ > #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ > @@ -960,7 +960,7 @@ typedef int __bitwise snd_ctl_elem_type_t; > #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6) /* 64-bit integer type */ > #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64 > > -typedef int __bitwise snd_ctl_elem_iface_t; > +typedef __u8 snd_ctl_elem_iface_t; > #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0) /* global control */ > #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1) /* hardware dependent device */ > #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2) /* virtual mixer device */ I can't take a uapi sound header file patch along with a driver change, these need to be independant. And this is a userspace api, you just changed the size of an externally facing variable, are you _SURE_ that is ok to do? thanks, greg k-h

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RE: [PATCH 3/3] [PATCH] staging: greybus: __u8 is sufficient for snd_ctl_elem_type_t and snd_ctl_elem_iface_t
by David Laight 24 Sep '20

24 Sep '20

From: Coiby Xu > Sent: 24 September 2020 11:21 > Use __8 to replace int and remove the unnecessary __bitwise type attribute. > > Found by sparse, ... > diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h > index 535a7229e1d9..8e71a95644ab 100644 > --- a/include/uapi/sound/asound.h > +++ b/include/uapi/sound/asound.h > @@ -950,7 +950,7 @@ struct snd_ctl_card_info { > unsigned char components[128]; /* card components / fine identification, delimited with one > space (AC97 etc..) */ > }; > > -typedef int __bitwise snd_ctl_elem_type_t; > +typedef __u8 snd_ctl_elem_type_t; > #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0) /* invalid */ > #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1) /* boolean type */ > #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2) /* integer type */ WTF is all that about anyway?? What is wrong with: #define SNDRV_CTL_ELEM_TYPE_NONE 0u /* invalid */ David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)

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[PATCH v6 0/5] Qualcomm's lpass-hdmi ASoC driver to support audio over dp port
by Srinivasa Rao Mandadapu 23 Sep '20

23 Sep '20

These patches are to support audio over DP port on Qualcomm's SC7180 LPASS Asoc. It includes machine driver, cpu driver, platform driver updates for HDMI path support, device tree documention, lpass variant structure optimization and configuration changes. These patches depends on the DP patch series https://patchwork.kernel.org/project/dri-devel/list/?series=332029 changes since V5: -- Removed unused struct regmap *map in lpass_platform_alloc_hdmidmactl_fields. -- DMA alloc and free API signature change in lpass-apq8016.c, lpass-ipq806x.c -- Keeping API "irqreturn_t lpass_platform_hdmiif_irq" under ifdef macro Changes Since v4: -- Updated with single compatible node for both I2S and HDMI. Changes Since v3: -- Removed id in lpass variant structure and used snd_soc_dai_driver id. Changes Since v2: -- Audio buffer size(i.e. LPASS_PLATFORM_BUFFER_SIZE) in lpass-platform.c increased. Changes Since v1: -- Commit messages are updated -- Addressed Rob Herring review comments V Sujith Kumar Reddy (5): ASoC: Add sc7180-lpass binding header hdmi define ASoC: dt-bindings: Add dt binding for lpass hdmi Asoc:qcom:lpass-cpu:Update dts property read API ASoC: qcom: Add support for lpass hdmi driver ASoC: qcom: sc7180: Add support for audio over DP .../devicetree/bindings/sound/qcom,lpass-cpu.yaml | 74 ++- include/dt-bindings/sound/sc7180-lpass.h | 1 + sound/soc/qcom/Kconfig | 5 + sound/soc/qcom/Makefile | 2 + sound/soc/qcom/lpass-apq8016.c | 4 +- sound/soc/qcom/lpass-cpu.c | 39 +- sound/soc/qcom/lpass-hdmi.c | 596 +++++++++++++++++++++ sound/soc/qcom/lpass-hdmi.h | 129 +++++ sound/soc/qcom/lpass-ipq806x.c | 4 +- sound/soc/qcom/lpass-lpaif-reg.h | 52 +- sound/soc/qcom/lpass-platform.c | 468 ++++++++++++---- sound/soc/qcom/lpass-sc7180.c | 116 +++- sound/soc/qcom/lpass.h | 119 +++- 13 files changed, 1451 insertions(+), 158 deletions(-) create mode 100644 sound/soc/qcom/lpass-hdmi.c create mode 100644 sound/soc/qcom/lpass-hdmi.h -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.

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[PATCH 0/6] ASoC: Intel: sdw machine driver updates for 5.10
by Kai Vehmanen 23 Sep '20

23 Sep '20

Series including fixes and improvements for Intel SoundWire machine drivers. Bard Liao (1): ASoC: Intel: add support for new SoundWire hardware layout on TGL Pierre-Louis Bossart (4): ASoC: Intel: sof_sdw: remove ternary operator ASoC: Intel: add codec name prefix to ACPI machine description ASoC: Intel: sof_sdw: remove hard-coded codec_conf table ASoC: Intel: sof_sdw_rt700: add codec prefix Rander Wang (1): ASOC: Intel: sof_sdw: restore playback functionality with max98373 amps include/sound/soc-acpi.h | 2 + sound/soc/intel/boards/sof_sdw.c | 170 +++++++++--------- sound/soc/intel/boards/sof_sdw_common.h | 3 + sound/soc/intel/boards/sof_sdw_max98373.c | 36 +++- sound/soc/intel/boards/sof_sdw_rt700.c | 6 +- .../intel/common/soc-acpi-intel-cml-match.c | 10 ++ .../intel/common/soc-acpi-intel-cnl-match.c | 1 + .../intel/common/soc-acpi-intel-icl-match.c | 6 + .../intel/common/soc-acpi-intel-tgl-match.c | 67 +++++++ 9 files changed, 216 insertions(+), 85 deletions(-) -- 2.27.0

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[PATCH 1/6] dt-bindings: tas2770: Add shutdown gpio property
by Dan Murphy 23 Sep '20

23 Sep '20

Add the shutdown-gpios property to the yaml to define the GPIO that can be used to place the device in shutdown mode or wake the device up. Signed-off-by: Dan Murphy <dmurphy(a)ti.com> --- Documentation/devicetree/bindings/sound/tas2770.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/tas2770.yaml b/Documentation/devicetree/bindings/sound/tas2770.yaml index bb26d081c9fa..9fdf614add55 100644 --- a/Documentation/devicetree/bindings/sound/tas2770.yaml +++ b/Documentation/devicetree/bindings/sound/tas2770.yaml @@ -29,6 +29,9 @@ properties: reset-gpio: description: GPIO used to reset the device. + shutdown-gpios: + description: GPIO used to control the state of the device. + interrupts: maxItems: 1 @@ -69,6 +72,7 @@ examples: interrupt-parent = <&gpio1>; interrupts = <14>; reset-gpio = <&gpio1 15 0>; + shutdown-gpios = <&gpio1 14 0>; ti,imon-slot-no = <0>; ti,vmon-slot-no = <2>; }; -- 2.28.0

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[PATCH] ASoC: Intel: hda_dsp_common: use static function in conditional block
by Kai Vehmanen 23 Sep '20

23 Sep '20

From: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> cppcheck reports the following warning: sound/soc/intel/boards/hda_dsp_common.c:17:0: style: The function 'hda_dsp_hdmi_pcm_handle' is never used. [unusedFunction] Fix by moving to static inside compilation block. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Reviewed-by: Jaska Uimonen <jaska.uimonen(a)intel.com> Signed-off-by: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> --- sound/soc/intel/boards/hda_dsp_common.c | 7 ++++--- sound/soc/intel/boards/hda_dsp_common.h | 3 --- 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/sound/soc/intel/boards/hda_dsp_common.c b/sound/soc/intel/boards/hda_dsp_common.c index 244b57fba64c..91ad2a0ad1ce 100644 --- a/sound/soc/intel/boards/hda_dsp_common.c +++ b/sound/soc/intel/boards/hda_dsp_common.c @@ -10,12 +10,14 @@ #include "hda_dsp_common.h" +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) + /* * Search card topology and return PCM device number * matching Nth HDMI device (zero-based index). */ -struct snd_pcm *hda_dsp_hdmi_pcm_handle(struct snd_soc_card *card, - int hdmi_idx) +static struct snd_pcm *hda_dsp_hdmi_pcm_handle(struct snd_soc_card *card, + int hdmi_idx) { struct snd_soc_pcm_runtime *rtd; struct snd_pcm *spcm; @@ -34,7 +36,6 @@ struct snd_pcm *hda_dsp_hdmi_pcm_handle(struct snd_soc_card *card, return NULL; } -#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) /* * Search card topology and register HDMI PCM related controls * to codec driver. diff --git a/sound/soc/intel/boards/hda_dsp_common.h b/sound/soc/intel/boards/hda_dsp_common.h index 727edd256962..ea4ae9285cf0 100644 --- a/sound/soc/intel/boards/hda_dsp_common.h +++ b/sound/soc/intel/boards/hda_dsp_common.h @@ -15,9 +15,6 @@ #include <sound/hda_i915.h> #include "../../codecs/hdac_hda.h" -struct snd_pcm *hda_dsp_hdmi_pcm_handle(struct snd_soc_card *card, - int hdmi_idx); - #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) int hda_dsp_hdmi_build_controls(struct snd_soc_card *card, struct snd_soc_component *comp); -- 2.27.0

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[PATCH v2 0/6] ASoC: Intel: sdw machine driver updates for 5.10
by Kai Vehmanen 23 Sep '20

23 Sep '20

Series including fixes and improvements for Intel SoundWire machine drivers. v2 changes: - fix the incorrct commit ids in Fixes tags Bard Liao (1): ASoC: Intel: add support for new SoundWire hardware layout on TGL Pierre-Louis Bossart (4): ASoC: Intel: sof_sdw: remove ternary operator ASoC: Intel: add codec name prefix to ACPI machine description ASoC: Intel: sof_sdw: remove hard-coded codec_conf table ASoC: Intel: sof_sdw_rt700: add codec prefix Rander Wang (1): ASOC: Intel: sof_sdw: restore playback functionality with max98373 amps include/sound/soc-acpi.h | 2 + sound/soc/intel/boards/sof_sdw.c | 170 +++++++++--------- sound/soc/intel/boards/sof_sdw_common.h | 3 + sound/soc/intel/boards/sof_sdw_max98373.c | 36 +++- sound/soc/intel/boards/sof_sdw_rt700.c | 6 +- .../intel/common/soc-acpi-intel-cml-match.c | 10 ++ .../intel/common/soc-acpi-intel-cnl-match.c | 1 + .../intel/common/soc-acpi-intel-icl-match.c | 6 + .../intel/common/soc-acpi-intel-tgl-match.c | 67 +++++++ 9 files changed, 216 insertions(+), 85 deletions(-) -- 2.27.0

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[PATCH] ALSA: usb-audio: Add mixer support for Pioneer DJ DJM-250MK2
by František Kučera 23 Sep '20

23 Sep '20

From: František Kučera <franta-linux(a)frantovo.cz> This patch extends support for DJM-250MK2 and allows mapping playback and capture channels to available sources. Configures the card through USB commands. Signed-off-by: František Kučera <franta-linux(a)frantovo.cz> --- sound/usb/mixer_quirks.c | 213 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 213 insertions(+) diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index 199cdbfdc761..df036a359f2f 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -2602,6 +2602,216 @@ static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer) return 0; } +/* + * Pioneer DJ DJM-250MK2 and maybe other DJM models + * + * For playback, no duplicate mapping should be set. + * There are three mixer stereo channels (CH1, CH2, AUX) + * and three stereo sources (Playback 1-2, Playback 3-4, Playback 5-6). + * Each channel should be mapped just once to one source. + * If mapped multiple times, only one source will play on given channel + * (sources are not mixed together). + * + * For recording, duplicate mapping is OK. We will get the same signal multiple times. + * + * Channels 7-8 are in both directions fixed to FX SEND / FX RETURN. + * + * See also notes in the quirks-table.h file. + */ + +struct snd_pioneer_djm_option { + const u16 wIndex; + const u16 wValue; + const char *name; +}; + +static const struct snd_pioneer_djm_option snd_pioneer_djm_options_capture_level[] = { + { .name = "-5 dB", .wValue = 0x0300, .wIndex = 0x8003 }, + { .name = "-10 dB", .wValue = 0x0200, .wIndex = 0x8003 }, + { .name = "-15 dB", .wValue = 0x0100, .wIndex = 0x8003 }, + { .name = "-19 dB", .wValue = 0x0000, .wIndex = 0x8003 } +}; + +static const struct snd_pioneer_djm_option snd_pioneer_djm_options_capture_ch12[] = { + { .name = "CH1 Control Tone PHONO", .wValue = 0x0103, .wIndex = 0x8002 }, + { .name = "CH1 Control Tone LINE", .wValue = 0x0100, .wIndex = 0x8002 }, + { .name = "Post CH1 Fader", .wValue = 0x0106, .wIndex = 0x8002 }, + { .name = "Cross Fader A", .wValue = 0x0107, .wIndex = 0x8002 }, + { .name = "Cross Fader B", .wValue = 0x0108, .wIndex = 0x8002 }, + { .name = "MIC", .wValue = 0x0109, .wIndex = 0x8002 }, + { .name = "AUX", .wValue = 0x010d, .wIndex = 0x8002 }, + { .name = "REC OUT", .wValue = 0x010a, .wIndex = 0x8002 } +}; + +static const struct snd_pioneer_djm_option snd_pioneer_djm_options_capture_ch34[] = { + { .name = "CH2 Control Tone PHONO", .wValue = 0x0203, .wIndex = 0x8002 }, + { .name = "CH2 Control Tone LINE", .wValue = 0x0200, .wIndex = 0x8002 }, + { .name = "Post CH2 Fader", .wValue = 0x0206, .wIndex = 0x8002 }, + { .name = "Cross Fader A", .wValue = 0x0207, .wIndex = 0x8002 }, + { .name = "Cross Fader B", .wValue = 0x0208, .wIndex = 0x8002 }, + { .name = "MIC", .wValue = 0x0209, .wIndex = 0x8002 }, + { .name = "AUX", .wValue = 0x020d, .wIndex = 0x8002 }, + { .name = "REC OUT", .wValue = 0x020a, .wIndex = 0x8002 } +}; + +static const struct snd_pioneer_djm_option snd_pioneer_djm_options_capture_ch56[] = { + { .name = "REC OUT", .wValue = 0x030a, .wIndex = 0x8002 }, + { .name = "Post CH1 Fader", .wValue = 0x0311, .wIndex = 0x8002 }, + { .name = "Post CH2 Fader", .wValue = 0x0312, .wIndex = 0x8002 }, + { .name = "Cross Fader A", .wValue = 0x0307, .wIndex = 0x8002 }, + { .name = "Cross Fader B", .wValue = 0x0308, .wIndex = 0x8002 }, + { .name = "MIC", .wValue = 0x0309, .wIndex = 0x8002 }, + { .name = "AUX", .wValue = 0x030d, .wIndex = 0x8002 } +}; + +static const struct snd_pioneer_djm_option snd_pioneer_djm_options_playback_12[] = { + { .name = "CH1", .wValue = 0x0100, .wIndex = 0x8016 }, + { .name = "CH2", .wValue = 0x0101, .wIndex = 0x8016 }, + { .name = "AUX", .wValue = 0x0104, .wIndex = 0x8016 } +}; + +static const struct snd_pioneer_djm_option snd_pioneer_djm_options_playback_34[] = { + { .name = "CH1", .wValue = 0x0200, .wIndex = 0x8016 }, + { .name = "CH2", .wValue = 0x0201, .wIndex = 0x8016 }, + { .name = "AUX", .wValue = 0x0204, .wIndex = 0x8016 } +}; + +static const struct snd_pioneer_djm_option snd_pioneer_djm_options_playback_56[] = { + { .name = "CH1", .wValue = 0x0300, .wIndex = 0x8016 }, + { .name = "CH2", .wValue = 0x0301, .wIndex = 0x8016 }, + { .name = "AUX", .wValue = 0x0304, .wIndex = 0x8016 } +}; + +struct snd_pioneer_djm_option_group { + const char *name; + const struct snd_pioneer_djm_option *options; + const size_t count; + const u16 default_value; +}; + +#define snd_pioneer_djm_option_group_item(_name, suffix, _default_value) { \ + .name = _name, \ + .options = snd_pioneer_djm_options_##suffix, \ + .count = ARRAY_SIZE(snd_pioneer_djm_options_##suffix), \ + .default_value = _default_value } + +static const struct snd_pioneer_djm_option_group snd_pioneer_djm_option_groups[] = { + snd_pioneer_djm_option_group_item("Master Capture Level Capture Switch", capture_level, 0), + snd_pioneer_djm_option_group_item("Capture 1-2 Capture Switch", capture_ch12, 2), + snd_pioneer_djm_option_group_item("Capture 3-4 Capture Switch", capture_ch34, 2), + snd_pioneer_djm_option_group_item("Capture 5-6 Capture Switch", capture_ch56, 0), + snd_pioneer_djm_option_group_item("Playback 1-2 Playback Switch", playback_12, 0), + snd_pioneer_djm_option_group_item("Playback 3-4 Playback Switch", playback_34, 1), + snd_pioneer_djm_option_group_item("Playback 5-6 Playback Switch", playback_56, 2) +}; + +// layout of the kcontrol->private_value: +#define SND_PIONEER_DJM_VALUE_MASK 0x0000ffff +#define SND_PIONEER_DJM_GROUP_MASK 0xffff0000 +#define SND_PIONEER_DJM_GROUP_SHIFT 16 + +static int snd_pioneer_djm_controls_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *info) +{ + u16 group_index = kctl->private_value >> SND_PIONEER_DJM_GROUP_SHIFT; + size_t count; + const char *name; + const struct snd_pioneer_djm_option_group *group; + + if (group_index >= ARRAY_SIZE(snd_pioneer_djm_option_groups)) + return -EINVAL; + + group = &snd_pioneer_djm_option_groups[group_index]; + count = group->count; + if (info->value.enumerated.item >= count) + info->value.enumerated.item = count - 1; + name = group->options[info->value.enumerated.item].name; + strlcpy(info->value.enumerated.name, name, sizeof(info->value.enumerated.name)); + info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + info->count = 1; + info->value.enumerated.items = count; + return 0; +} + +static int snd_pioneer_djm_controls_update(struct usb_mixer_interface *mixer, u16 group, u16 value) +{ + int err; + + if (group >= ARRAY_SIZE(snd_pioneer_djm_option_groups) + || value >= snd_pioneer_djm_option_groups[group].count) + return -EINVAL; + + err = snd_usb_lock_shutdown(mixer->chip); + if (err) + return err; + + err = snd_usb_ctl_msg( + mixer->chip->dev, usb_sndctrlpipe(mixer->chip->dev, 0), + USB_REQ_SET_FEATURE, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + snd_pioneer_djm_option_groups[group].options[value].wValue, + snd_pioneer_djm_option_groups[group].options[value].wIndex, + NULL, 0); + + snd_usb_unlock_shutdown(mixer->chip); + return err; +} + +static int snd_pioneer_djm_controls_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *elem) +{ + elem->value.enumerated.item[0] = kctl->private_value & SND_PIONEER_DJM_VALUE_MASK; + return 0; +} + +static int snd_pioneer_djm_controls_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *elem) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + struct usb_mixer_interface *mixer = list->mixer; + unsigned long private_value = kctl->private_value; + u16 group = (private_value & SND_PIONEER_DJM_GROUP_MASK) >> SND_PIONEER_DJM_GROUP_SHIFT; + u16 value = elem->value.enumerated.item[0]; + + kctl->private_value = (group << SND_PIONEER_DJM_GROUP_SHIFT) | value; + + return snd_pioneer_djm_controls_update(mixer, group, value); +} + +static int snd_pioneer_djm_controls_resume(struct usb_mixer_elem_list *list) +{ + unsigned long private_value = list->kctl->private_value; + u16 group = (private_value & SND_PIONEER_DJM_GROUP_MASK) >> SND_PIONEER_DJM_GROUP_SHIFT; + u16 value = (private_value & SND_PIONEER_DJM_VALUE_MASK); + + return snd_pioneer_djm_controls_update(list->mixer, group, value); +} + +static int snd_pioneer_djm_controls_create(struct usb_mixer_interface *mixer) +{ + int err, i; + const struct snd_pioneer_djm_option_group *group; + struct snd_kcontrol_new knew = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .index = 0, + .info = snd_pioneer_djm_controls_info, + .get = snd_pioneer_djm_controls_get, + .put = snd_pioneer_djm_controls_put + }; + + for (i = 0; i < ARRAY_SIZE(snd_pioneer_djm_option_groups); i++) { + group = &snd_pioneer_djm_option_groups[i]; + knew.name = group->name; + knew.private_value = (i << SND_PIONEER_DJM_GROUP_SHIFT) | group->default_value; + err = snd_pioneer_djm_controls_update(mixer, i, group->default_value); + if (err) + return err; + err = add_single_ctl_with_resume(mixer, 0, snd_pioneer_djm_controls_resume, + &knew, NULL); + if (err) + return err; + } + return 0; +} + int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) { int err = 0; @@ -2706,6 +2916,9 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) case USB_ID(0x2a39, 0x3fb0): /* RME Babyface Pro FS */ err = snd_bbfpro_controls_create(mixer); break; + case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */ + err = snd_pioneer_djm_controls_create(mixer); + break; } return err; -- 2.20.1

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[PATCH] soundwire: remove an unnecessary NULL check
by Dan Carpenter 23 Sep '20

23 Sep '20

The "bus" pointer isn't NULL so the address to a non-zero offset in middle of "bus" cannot be NULL. Delete the NULL check. Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com> --- drivers/soundwire/generic_bandwidth_allocation.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c index 6088775b67a5..fdc0db71360e 100644 --- a/drivers/soundwire/generic_bandwidth_allocation.c +++ b/drivers/soundwire/generic_bandwidth_allocation.c @@ -342,15 +342,11 @@ static int sdw_select_row_col(struct sdw_bus *bus, int clk_freq) static int sdw_compute_bus_params(struct sdw_bus *bus) { unsigned int max_dr_freq, curr_dr_freq = 0; - struct sdw_master_prop *mstr_prop = NULL; + struct sdw_master_prop *mstr_prop = &bus->prop; int i, clk_values, ret; bool is_gear = false; u32 *clk_buf; - mstr_prop = &bus->prop; - if (!mstr_prop) - return -EINVAL; - if (mstr_prop->num_clk_gears) { clk_values = mstr_prop->num_clk_gears; clk_buf = mstr_prop->clk_gears; -- 2.28.0

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