November 2017 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] Multiple codecs on the same DAI
by Ricard Wanderlof 07 Dec '17

07 Dec '17

Hi, I'm studying a hardware implementation where an S/PDIF receiver is on the same I2S connection as codec. Essentially, the S/PDIF receiver echos the I2S capture data from the codec unless there is a digital input signal which it can lock on to. For playback, the I2S output from the CPU DAI goes directly to the codec. I'm a bit at a loss for how to model this in ALSA. I know it's possible to have multiple codecs on a card, but those cases seem to be either separate codecs for the left and right channels, or separate codecs for capture and playback. In my case the playback codec is always the same, but the capture codec can switch between the two avilable input methods (more or less automatically if the S/PDIF receiver is so configured). >From a user perspective, it's not important that ALSA knows where the data is actually coming from, so if I could just register the two "codecs" on the same dai_link at the same time it would be fine, but I'm just imagining that I'll run into problems when ALSA tries to set up streams with two different codecs being involved. (Of course, at some level, the user might be interested to know the signal routing, but that can be determined by reading appropriate status bits in the S/PDIF receiver for instance using amixer controls). Do you have any ideas about how to configure this in ALSA? /Ricard -- Ricard Wolf Wanderlöf ricardw(at)axis.com Axis Communications AB, Lund, Sweden www.axis.com Phone +46 46 272 2016 Fax +46 46 13 61 30

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[alsa-devel] [PATCH V2] ARM: dts: bcm283x: Fix probing of bcm2835-i2s
by Stefan Wahren 06 Dec '17

06 Dec '17

Since 517e7a1537a ("ASoC: bcm2835: move to use the clock framework") the bcm2835-i2s requires a clock as DT property. Unfortunately the necessary DT change has never been applied. While we are at it also fix the first PCM register range to cover the PCM_GRAY register. This patch also fixes the dt-bindings accordlingly. Fixes: 517e7a1537a ("ASoC: bcm2835: move to use the clock framework") Signed-off-by: Stefan Wahren <stefan.wahren(a)i2se.com> Reviewed-by: Eric Anholt <eric(a)anholt.net> Tested-by: Matthias Reichl <hias(a)horus.com> --- Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt | 4 ++-- Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt | 9 ++++----- arch/arm/boot/dts/bcm283x.dtsi | 4 ++-- 3 files changed, 8 insertions(+), 9 deletions(-) Changes in V2: * add Fixes, Reviewed-by and Tested-by tags diff --git a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt index baf9b34..b6a8cc0 100644 --- a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt +++ b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt @@ -74,8 +74,8 @@ Example: bcm2835_i2s: i2s@7e203000 { compatible = "brcm,bcm2835-i2s"; - reg = < 0x7e203000 0x20>, - < 0x7e101098 0x02>; + reg = < 0x7e203000 0x24>; + clocks = <&clocks BCM2835_CLOCK_PCM>; dmas = <&dma 2>, <&dma 3>; diff --git a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt index 65783de..7bb0362 100644 --- a/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt +++ b/Documentation/devicetree/bindings/sound/brcm,bcm2835-i2s.txt @@ -2,9 +2,8 @@ Required properties: - compatible: "brcm,bcm2835-i2s" -- reg: A list of base address and size entries: - * The first entry should cover the PCM registers - * The second entry should cover the PCM clock registers +- reg: Should contain PCM registers location and length. +- clocks: the (PCM) clock to use - dmas: List of DMA controller phandle and DMA request line ordered pairs. - dma-names: Identifier string for each DMA request line in the dmas property. These strings correspond 1:1 with the ordered pairs in dmas. @@ -16,8 +15,8 @@ Example: bcm2835_i2s: i2s@7e203000 { compatible = "brcm,bcm2835-i2s"; - reg = <0x7e203000 0x20>, - <0x7e101098 0x02>; + reg = <0x7e203000 0x24>; + clocks = <&clocks BCM2835_CLOCK_PCM>; dmas = <&dma 2>, <&dma 3>; diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index dcde93c..f493761 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -396,8 +396,8 @@ i2s: i2s@7e203000 { compatible = "brcm,bcm2835-i2s"; - reg = <0x7e203000 0x20>, - <0x7e101098 0x02>; + reg = <0x7e203000 0x24>; + clocks = <&clocks BCM2835_CLOCK_PCM>; dmas = <&dma 2>, <&dma 3>; -- 2.7.4

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[alsa-devel] [PATCH 00/11] ASoC: Intel: Skylake: Bug fixes for skylake driver
by Guneshwor Singh 06 Dec '17

06 Dec '17

This series include couple of bug fixes which include memory leak fixes, null pointer dereference fixes, fixes for errors generated by static checker, updown mixer module ipc format fix and use module uuid instead of module id which is required for module pins. Guneshwor Singh (2): ASoC: Intel: Skylake: Fix updown mixer module format ASoC: Intel: Skylake: Add channel map in updown mixer module IPC Pankaj Bharadiya (3): ASoC: Intel: Skylake: Fix potential NULL pointer dereference ASoC: Intel: Skylake: Fix uuid_module memory leak in failure case ASoC: Intel: Skylake: Check for NHLT ACPI header signature Sriram Periyasamy (2): ASoC: Intel: Skylake: Optimize UUID handling to fill pin info ASoC: Intel: Skylake: Add dynamic module id support Subhransu S. Prusty (4): ASoC: Intel: Skylake: Remove second shim read in register_poll ASoC: hdac_hdmi: Fix static checker warning for sprintf usage ASoC: hdac_hdmi: Fix possible NULL pointer dereference ASoC: hdac_hdmi: Fix possible memory leak on parse and map nid failure sound/soc/codecs/hdac_hdmi.c | 51 ++++++++++++++++++++++---- sound/soc/intel/common/sst-dsp.c | 4 +- sound/soc/intel/skylake/skl-messages.c | 9 +---- sound/soc/intel/skylake/skl-nhlt.c | 9 +++++ sound/soc/intel/skylake/skl-pcm.c | 3 +- sound/soc/intel/skylake/skl-sst-utils.c | 15 ++++++-- sound/soc/intel/skylake/skl-topology.c | 65 +++++++++++++++++++++------------ sound/soc/intel/skylake/skl-topology.h | 3 +- 8 files changed, 112 insertions(+), 47 deletions(-) -- 2.14.2

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[alsa-devel] [PATCH 0/4] ASoC: Intel: Skylake: Skylake driver updates
by Guneshwor Singh 06 Dec '17

06 Dec '17

This series includes fixes for HDMI widgets sysfs not updating, shim read optimization and feature to configure DSP clock source. Pradeep Tewani (2): ASoC: Intel: Skylake: Parse vendor tokens to build A-State table ASoC: Intel: Skylake: Configure DSP clock source Puneeth Prabhu (1): ASoC: hdac_hdmi: Refresh sysfs during hdmi device probe Subhransu S. Prusty (1): ASoC: Intel: Skylake: Remove second shim read in register_poll include/uapi/sound/snd_sst_tokens.h | 17 ++++++++++++- sound/soc/codecs/hdac_hdmi.c | 1 + sound/soc/intel/common/sst-dsp.c | 4 +--- sound/soc/intel/skylake/skl-messages.c | 18 ++++++++++++++ sound/soc/intel/skylake/skl-pcm.c | 6 +++++ sound/soc/intel/skylake/skl-sst-dsp.h | 3 +++ sound/soc/intel/skylake/skl-topology.c | 44 +++++++++++++++++++++++++++++++++- sound/soc/intel/skylake/skl.h | 17 +++++++++++++ 8 files changed, 105 insertions(+), 5 deletions(-) -- 2.15.0

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[alsa-devel] [PATCH v3 34/36] ALSA/dummy: Replace tasklet with softirq hrtimer
by Anna-Maria Gleixner 06 Dec '17

06 Dec '17

From: Thomas Gleixner <tglx(a)linutronix.de> The tasklet is used to defer the execution of snd_pcm_period_elapsed() to the softirq context. Using the HRTIMER_MODE_SOFT mode invokes the timer callback in softirq context as well which renders the tasklet useless. [o-takashi: avoid stall due to a call of hrtimer_cancel() on a callback of hrtimer] Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria(a)linutronix.de> Cc: alsa-devel(a)alsa-project.org Cc: Takashi Sakamoto <o-takashi(a)sakamocchi.jp> Cc: Takashi Iwai <tiwai(a)suse.com> Cc: Jaroslav Kysela <perex(a)perex.cz> Link: http://lkml.kernel.org/r/20170905161820.jtysvxtfleunbbmf@breakpoint.cc --- sound/drivers/dummy.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c index 7b2b1f766b00..6ad2ff57833d 100644 --- a/sound/drivers/dummy.c +++ b/sound/drivers/dummy.c @@ -375,17 +375,9 @@ struct dummy_hrtimer_pcm { ktime_t period_time; atomic_t running; struct hrtimer timer; - struct tasklet_struct tasklet; struct snd_pcm_substream *substream; }; -static void dummy_hrtimer_pcm_elapsed(unsigned long priv) -{ - struct dummy_hrtimer_pcm *dpcm = (struct dummy_hrtimer_pcm *)priv; - if (atomic_read(&dpcm->running)) - snd_pcm_period_elapsed(dpcm->substream); -} - static enum hrtimer_restart dummy_hrtimer_callback(struct hrtimer *timer) { struct dummy_hrtimer_pcm *dpcm; @@ -393,7 +385,14 @@ static enum hrtimer_restart dummy_hrtimer_callback(struct hrtimer *timer) dpcm = container_of(timer, struct dummy_hrtimer_pcm, timer); if (!atomic_read(&dpcm->running)) return HRTIMER_NORESTART; - tasklet_schedule(&dpcm->tasklet); + /* + * In cases of XRUN and draining, this calls .trigger to stop PCM + * substream. + */ + snd_pcm_period_elapsed(dpcm->substream); + if (!atomic_read(&dpcm->running)) + return HRTIMER_NORESTART; + hrtimer_forward_now(timer, dpcm->period_time); return HRTIMER_RESTART; } @@ -403,7 +402,7 @@ static int dummy_hrtimer_start(struct snd_pcm_substream *substream) struct dummy_hrtimer_pcm *dpcm = substream->runtime->private_data; dpcm->base_time = hrtimer_cb_get_time(&dpcm->timer); - hrtimer_start(&dpcm->timer, dpcm->period_time, HRTIMER_MODE_REL); + hrtimer_start(&dpcm->timer, dpcm->period_time, HRTIMER_MODE_REL_SOFT); atomic_set(&dpcm->running, 1); return 0; } @@ -413,14 +412,14 @@ static int dummy_hrtimer_stop(struct snd_pcm_substream *substream) struct dummy_hrtimer_pcm *dpcm = substream->runtime->private_data; atomic_set(&dpcm->running, 0); - hrtimer_cancel(&dpcm->timer); + if (!hrtimer_callback_running(&dpcm->timer)) + hrtimer_cancel(&dpcm->timer); return 0; } static inline void dummy_hrtimer_sync(struct dummy_hrtimer_pcm *dpcm) { hrtimer_cancel(&dpcm->timer); - tasklet_kill(&dpcm->tasklet); } static snd_pcm_uframes_t @@ -465,12 +464,10 @@ static int dummy_hrtimer_create(struct snd_pcm_substream *substream) if (!dpcm) return -ENOMEM; substream->runtime->private_data = dpcm; - hrtimer_init(&dpcm->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + hrtimer_init(&dpcm->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); dpcm->timer.function = dummy_hrtimer_callback; dpcm->substream = substream; atomic_set(&dpcm->running, 0); - tasklet_init(&dpcm->tasklet, dummy_hrtimer_pcm_elapsed, - (unsigned long)dpcm); return 0; } -- 2.11.0

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[alsa-devel] [PATCH] ASoC: fsl_asrc: protect macro argument
by Stefan Agner 06 Dec '17

06 Dec '17

Protect macro argument with parentheses to avoid ambiguity. This fixes a warning seen with clang: warning: logical not is only applied to the left hand side of this comparison Signed-off-by: Stefan Agner <stefan(a)agner.ch> --- sound/soc/fsl/fsl_asrc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h index 0f163abe4ba3..ec33dab4b909 100644 --- a/sound/soc/fsl/fsl_asrc.h +++ b/sound/soc/fsl/fsl_asrc.h @@ -57,7 +57,7 @@ #define REG_ASRDOC 0x74 #define REG_ASRDI(i) (REG_ASRDIA + (i << 3)) #define REG_ASRDO(i) (REG_ASRDOA + (i << 3)) -#define REG_ASRDx(x, i) (x == IN ? REG_ASRDI(i) : REG_ASRDO(i)) +#define REG_ASRDx(x, i) ((x) == IN ? REG_ASRDI(i) : REG_ASRDO(i)) #define REG_ASRIDRHA 0x80 #define REG_ASRIDRLA 0x84 -- 2.13.3

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[alsa-devel] [PATCH v2 1/2] ASoC: codecs: Add PCM186x binding documentation
by Andrew F. Davis 06 Dec '17

06 Dec '17

Add the dt-binding documentation for the TI PCM186x 2ch and 4ch Audio ADCs With Universal Front End. Signed-off-by: Andrew F. Davis <afd(a)ti.com> Acked-by: Rob Herring <robh(a)kernel.org> --- Changes from v1: - pcm186x@4a -> audio-codec@4a - Added Acked-by .../devicetree/bindings/sound/pcm186x.txt | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/pcm186x.txt diff --git a/Documentation/devicetree/bindings/sound/pcm186x.txt b/Documentation/devicetree/bindings/sound/pcm186x.txt new file mode 100644 index 000000000000..1087f4855980 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/pcm186x.txt @@ -0,0 +1,42 @@ +Texas Instruments PCM186x Universal Audio ADC + +These devices support both I2C and SPI (configured with pin strapping +on the board). + +Required properties: + + - compatible : "ti,pcm1862", + "ti,pcm1863", + "ti,pcm1864", + "ti,pcm1865" + + - reg : The I2C address of the device for I2C, the chip select + number for SPI. + + - avdd-supply: Analog core power supply (3.3v) + - dvdd-supply: Digital core power supply + - iovdd-supply: Digital IO power supply + See regulator/regulator.txt for more information + +CODEC input pins: + * VINL1 + * VINR1 + * VINL2 + * VINR2 + * VINL3 + * VINR3 + * VINL4 + * VINR4 + +The pins can be used in referring sound node's audio-routing property. + +Example: + + pcm186x: audio-codec@4a { + compatible = "ti,pcm1865"; + reg = <0x4a>; + + avdd-supply = <&reg_3v3_analog>; + dvdd-supply = <&reg_3v3>; + iovdd-supply = <&reg_1v8>; + }; -- 2.15.0

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[alsa-devel] [PATCH v4 0/7] ASoC: Intel: Skylake: Add a clk driver to enable ssp clks early
by Sriram Periyasamy 06 Dec '17

06 Dec '17

For certain platforms, clocks (mclk/sclk/fs) are required to be up before the stream start. Example: some codecs needs the mclk/sclk/fs to be enabled early for a successful clock synchronization. Some platforms require clock to be enabled at boot and be always ON. By sending set_dma_control IPC (with the i2s blobs queried from NHLT), these clocks can be enabled early after the firmware is downloaded. With this series, a virtual clock driver is created which provides interface to send the required IPCs from machine driver to enable the clocks. NHLT is parsed during probe and the clock information is populated. The pointer to blob is cached and sent along with the set_dma_control IPC structure during the clk prepare/unprepare callback. Clocks are created for a ssp if the nhlt table has endpoint configuration for that particular ssp. Skylake driver creates a platform driver with the clock information and register the clk ops callback. Kabylake machine driver uses the clock interface to enable the clocks early as it is required by the rt5663 driver for clock synchronization. v3 -> v4 - Add missing signed-offs v2 -> v3 - Moved the clk ops and IPCs from Skylake driver to clk driver and reordered commits accordingly - Add the support for extended I2S blob config which supports multiple mclk dividers in NHLT - Enable the clocks as well in DAPM PMU event instead of hw_params in machine drivers as confirmed by codec vendor - Do not register the clk if there is no valid clock source is avail in the I2S blob - Take care of error return in the clk driver - Address rest of the review comments and more optimization added - Fix the warning sound/soc/intel/skylake/skl.c:724:1-3: WARNING: PTR_ERR_OR_ZERO can be used reported by scripts/coccinelle/api/ptr_ret.cocci - Modified DSP replies as human readable to ease the debugging - Add firmware replies for MCLK/SCLK clocks if they are running already v1 -> v2 - Register parent clocks with skylake device. With the patch "clk: Add support for runtime PM" soon to be merged will help DSP to stay active on call to clock enable. Reference: (https://patchwork.kernel.org/patch/9911741/) - Fix the machine driver to enable clocks early for headphone playback path as well to fix a pop noise issue Harsha Priya (1): ASoC: Intel: kbl: Enable mclk and ssp sclk early Naveen M (1): ASoC: Intel: eve: Enable mclk and ssp sclk early Sriram Periyasamy (3): ASoC: Intel: Skylake: Parse nhlt and register clock device ASoC: Intel: Skylake: Add ssp clock driver ASoC: Intel: Skylake: Add extended I2S config blob support in Clock driver Subhransu S. Prusty (2): ASoC: Intel: Skylake: Make DSP replies more human readable ASoC: Intel: Skylake: Add FW reply for MCLK/SCLK IPC sound/soc/intel/Kconfig | 3 + sound/soc/intel/boards/Kconfig | 2 + sound/soc/intel/boards/kbl_rt5663_max98927.c | 101 ++++- .../soc/intel/boards/kbl_rt5663_rt5514_max98927.c | 100 +++++ sound/soc/intel/skylake/Makefile | 5 + sound/soc/intel/skylake/skl-i2s.h | 95 +++++ sound/soc/intel/skylake/skl-messages.c | 1 + sound/soc/intel/skylake/skl-nhlt.c | 172 ++++++++ sound/soc/intel/skylake/skl-ssp-clk.c | 470 +++++++++++++++++++++ sound/soc/intel/skylake/skl-ssp-clk.h | 117 +++++ sound/soc/intel/skylake/skl-sst-ipc.c | 50 ++- sound/soc/intel/skylake/skl.c | 93 ++++ sound/soc/intel/skylake/skl.h | 10 + 13 files changed, 1207 insertions(+), 12 deletions(-) create mode 100644 sound/soc/intel/skylake/skl-i2s.h create mode 100644 sound/soc/intel/skylake/skl-ssp-clk.c create mode 100644 sound/soc/intel/skylake/skl-ssp-clk.h -- 2.7.4

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[alsa-devel] [PATCH v8 00/13] Introduce framework for SLIMbus device driver
by srinivas.kandagatla＠linaro.org 06 Dec '17

06 Dec '17

From: Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> Thanks for everyone who reviewed v7 patchset, here is v8 with review comments addressed. SLIMbus (Serial Low Power Interchip Media Bus) is a specification developed by MIPI (Mobile Industry Processor Interface) alliance. SLIMbus is a 2-wire implementation, which is used to communicate with peripheral components like audio-codec. SLIMbus uses Time-Division-Multiplexing to accommodate multiple data channels, and control channel. Control channel has messages to do device-enumeration, messages to send/receive control-data to/from SLIMbus devices, messages for port/channel management, and messages to do bandwidth allocation. Framework is introduced to support multiple instances of the bus (1 controller per bus), and multiple slave devices per controller. SPI and I2C frameworks, and comments from last time when I submitted the patches were referred-to while working on this framework. These patchsets introduce device-management, OF helpers, and messaging APIs, controller driver for Qualcomm's SLIMbus controller, and clock-pause feature for entering/exiting low-power mode for SLIMbus. Framework patches to do channel, port and bandwidth management are work-in-progress and will be sent out once these initial patches are accepted. These patchsets were tested on Qualcomm Snapdragon processor board using the controller driver, and a test slave device. v7: https://lwn.net/Articles/739150/ Changes from v7 to v8: * Fixed few warnings from kerneldoc * Few cosmetic fixes suggested by Vinod * made SLIMbus string usage more consistent with spec * made probe mandatory for slim device * replaced explicit info and value element apis with more generic api * made driver_data aligned * cleaned up qcom controller driver as suggested by Charles and Jonathan Sagar Dharia (9): Documentation: Add SLIMbus summary dt-bindings: Add SLIMbus bindings slimbus: Add SLIMbus bus type slimbus: core: Add slim controllers support slimbus: Add messaging APIs to slimbus framework slimbus: Add support for 'clock-pause' feature dt-bindings: Add qcom slimbus controller bindings slimbus: qcom: Add Qualcomm Slimbus controller driver slimbus: qcom: Add runtime-pm support using clock-pause Srinivas Kandagatla (4): slimbus: core: add support to device tree helper regmap: add SLIMbus support slimbus: core: add common defines required for controllers MAINTAINERS: Add SLIMbus maintainer Documentation/devicetree/bindings/slimbus/bus.txt | 50 ++ .../devicetree/bindings/slimbus/slim-qcom-ctrl.txt | 39 ++ Documentation/driver-api/slimbus/index.rst | 15 + Documentation/driver-api/slimbus/summary.rst | 108 +++ MAINTAINERS | 8 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/base/regmap/Kconfig | 4 + drivers/base/regmap/Makefile | 1 + drivers/base/regmap/regmap-slimbus.c | 89 +++ drivers/slimbus/Kconfig | 22 + drivers/slimbus/Makefile | 9 + drivers/slimbus/core.c | 487 +++++++++++++ drivers/slimbus/messaging.c | 336 +++++++++ drivers/slimbus/qcom-ctrl.c | 756 +++++++++++++++++++++ drivers/slimbus/sched.c | 128 ++++ drivers/slimbus/slimbus.h | 268 ++++++++ include/linux/mod_devicetable.h | 13 + include/linux/regmap.h | 18 + include/linux/slimbus.h | 171 +++++ 20 files changed, 2525 insertions(+) create mode 100644 Documentation/devicetree/bindings/slimbus/bus.txt create mode 100644 Documentation/devicetree/bindings/slimbus/slim-qcom-ctrl.txt create mode 100644 Documentation/driver-api/slimbus/index.rst create mode 100644 Documentation/driver-api/slimbus/summary.rst create mode 100644 drivers/base/regmap/regmap-slimbus.c create mode 100644 drivers/slimbus/Kconfig create mode 100644 drivers/slimbus/Makefile create mode 100644 drivers/slimbus/core.c create mode 100644 drivers/slimbus/messaging.c create mode 100644 drivers/slimbus/qcom-ctrl.c create mode 100644 drivers/slimbus/sched.c create mode 100644 drivers/slimbus/slimbus.h create mode 100644 include/linux/slimbus.h -- 2.15.0

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[alsa-devel] [alsa-lib][PATCH 3/4] pcm: linear, route: handle linear formats with 20-bit sample on 4 bytes
by Maciej S. Szmigiero 05 Dec '17

05 Dec '17

The previous patch has added 20-bit PCM formats SND_PCM_FORMAT_{S,U}20 to alsa-lib. We need to extend the linear format conversion code with handling of these sample formats so they can also be utilized by applications that only recognize the more typical ones like SND_PCM_FORMAT_S16. Since the conversion arrays are indexed by a format bit width divided by 8 the easiest way to handle these formats is to treat them like they were 40-bit wide (the next free integer multiple of 8 bits). This doesn't create a collision risk with a future format since there can't really be a 40-bit sample format that occupies 4 bytes. Make sure we use the getput conversion method for these formats since a direct conversion from / to them is not supported. While we are at it let's also add asserts on a format bit width value in snd_pcm_linear_get_index() and snd_pcm_linear_put_index() received from snd_pcm_format_width() so we won't try to access memory outside a conversion array if for some reason this function had returned a value that is not in the expected range. Signed-off-by: Maciej S. Szmigiero <mail(a)maciej.szmigiero.name> --- src/pcm/pcm_linear.c | 16 +++++++++++++--- src/pcm/pcm_route.c | 6 ++++-- src/pcm/plugin_ops.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++---- 3 files changed, 63 insertions(+), 9 deletions(-) diff --git a/src/pcm/pcm_linear.c b/src/pcm/pcm_linear.c index 0d61e927323f..e4973a308004 100644 --- a/src/pcm/pcm_linear.c +++ b/src/pcm/pcm_linear.c @@ -90,6 +90,7 @@ int snd_pcm_linear_get_index(snd_pcm_format_t src_format, snd_pcm_format_t dst_f endian = 0; pwidth = snd_pcm_format_physical_width(src_format); width = snd_pcm_format_width(src_format); + assert(width >= 8 && width <= 32); if (pwidth == 24) { switch (width) { case 24: @@ -100,8 +101,11 @@ int snd_pcm_linear_get_index(snd_pcm_format_t src_format, snd_pcm_format_t dst_f default: width = 2; break; } - return width * 4 + endian * 2 + sign + 16; + return width * 4 + endian * 2 + sign + 20; } else { + if (width == 20) + width = 40; + width = width / 8 - 1; return width * 4 + endian * 2 + sign; } @@ -121,6 +125,7 @@ int snd_pcm_linear_put_index(snd_pcm_format_t src_format, snd_pcm_format_t dst_f endian = 0; pwidth = snd_pcm_format_physical_width(dst_format); width = snd_pcm_format_width(dst_format); + assert(width >= 8 && width <= 32); if (pwidth == 24) { switch (width) { case 24: @@ -131,8 +136,11 @@ int snd_pcm_linear_put_index(snd_pcm_format_t src_format, snd_pcm_format_t dst_f default: width = 2; break; } - return width * 4 + endian * 2 + sign + 16; + return width * 4 + endian * 2 + sign + 20; } else { + if (width == 20) + width = 40; + width = width / 8 - 1; return width * 4 + endian * 2 + sign; } @@ -303,7 +311,9 @@ static int snd_pcm_linear_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params) if (err < 0) return err; linear->use_getput = (snd_pcm_format_physical_width(format) == 24 || - snd_pcm_format_physical_width(linear->sformat) == 24); + snd_pcm_format_physical_width(linear->sformat) == 24 || + snd_pcm_format_width(format) == 20 || + snd_pcm_format_width(linear->sformat) == 20); if (linear->use_getput) { if (pcm->stream == SND_PCM_STREAM_PLAYBACK) { linear->get_idx = snd_pcm_linear_get_index(format, SND_PCM_FORMAT_S32); diff --git a/src/pcm/pcm_route.c b/src/pcm/pcm_route.c index 1f485a8e79f9..bbcc6118b593 100644 --- a/src/pcm/pcm_route.c +++ b/src/pcm/pcm_route.c @@ -565,10 +565,12 @@ static int snd_pcm_route_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t * params) } if (err < 0) return err; - /* 3 bytes formats? */ + /* 3 bytes or 20-bit formats? */ route->params.use_getput = (snd_pcm_format_physical_width(src_format) + 7) / 8 == 3 || - (snd_pcm_format_physical_width(dst_format) + 7) / 8 == 3; + (snd_pcm_format_physical_width(dst_format) + 7) / 8 == 3 || + snd_pcm_format_width(src_format) == 20 || + snd_pcm_format_width(dst_format) == 20; route->params.get_idx = snd_pcm_linear_get_index(src_format, SND_PCM_FORMAT_S32); route->params.put_idx = snd_pcm_linear_put_index(SND_PCM_FORMAT_S32, dst_format); route->params.conv_idx = snd_pcm_linear_convert_index(src_format, dst_format); diff --git a/src/pcm/plugin_ops.h b/src/pcm/plugin_ops.h index 5a6016adb13a..a784d9c2b320 100644 --- a/src/pcm/plugin_ops.h +++ b/src/pcm/plugin_ops.h @@ -21,6 +21,12 @@ #ifndef SX_INLINES #define SX_INLINES +static inline uint32_t sx20(uint32_t x) +{ + if(x&0x00080000) + return x|0xFFF00000; + return x&0x000FFFFF; +} static inline uint32_t sx24(uint32_t x) { if(x&0x00800000) @@ -341,7 +347,7 @@ conv_1234_123C: as_u32(dst) = as_u32c(src) ^ 0x80; goto CONV_END; #ifdef GET16_LABELS /* src_wid src_endswap sign_toggle */ -static void *const get16_labels[4 * 2 * 2 + 4 * 3] = { +static void *const get16_labels[5 * 2 * 2 + 4 * 3] = { &&get16_1_10, /* 8h -> 16h */ &&get16_1_90, /* 8h ^> 16h */ &&get16_1_10, /* 8s -> 16h */ @@ -350,6 +356,7 @@ static void *const get16_labels[4 * 2 * 2 + 4 * 3] = { &&get16_12_92, /* 16h ^> 16h */ &&get16_12_21, /* 16s -> 16h */ &&get16_12_A1, /* 16s ^> 16h */ + /* 4 byte formats */ &&get16_0123_12, /* 24h -> 16h */ &&get16_0123_92, /* 24h ^> 16h */ &&get16_1230_32, /* 24s -> 16h */ @@ -358,6 +365,10 @@ static void *const get16_labels[4 * 2 * 2 + 4 * 3] = { &&get16_1234_92, /* 32h ^> 16h */ &&get16_1234_43, /* 32s -> 16h */ &&get16_1234_C3, /* 32s ^> 16h */ + &&get16_0123_12_20, /* 20h -> 16h */ + &&get16_0123_92_20, /* 20h ^> 16h */ + &&get16_1230_32_20, /* 20s -> 16h */ + &&get16_1230_B2_20, /* 20s ^> 16h */ /* 3bytes format */ &&get16_123_12, /* 24h -> 16h */ &&get16_123_92, /* 24h ^> 16h */ @@ -390,6 +401,10 @@ get16_1234_12: sample = as_u32c(src) >> 16; goto GET16_END; get16_1234_92: sample = (as_u32c(src) >> 16) ^ 0x8000; goto GET16_END; get16_1234_43: sample = bswap_16(as_u32c(src)); goto GET16_END; get16_1234_C3: sample = bswap_16(as_u32c(src) ^ 0x80); goto GET16_END; +get16_0123_12_20: sample = as_u32c(src) >> 4; goto GET16_END; +get16_0123_92_20: sample = (as_u32c(src) >> 4) ^ 0x8000; goto GET16_END; +get16_1230_32_20: sample = bswap_32(as_u32c(src)) >> 4; goto GET16_END; +get16_1230_B2_20: sample = (bswap_32(as_u32c(src)) >> 4) ^ 0x8000; goto GET16_END; get16_123_12: sample = _get_triple(src) >> 8; goto GET16_END; get16_123_92: sample = (_get_triple(src) >> 8) ^ 0x8000; goto GET16_END; get16_123_32: sample = _get_triple_s(src) >> 8; goto GET16_END; @@ -407,7 +422,7 @@ get16_123_B2_18: sample = (_get_triple_s(src) >> 2) ^ 0x8000; goto GET16_END; #ifdef PUT16_LABELS /* dst_wid dst_endswap sign_toggle */ -static void *const put16_labels[4 * 2 * 2 + 4 * 3] = { +static void *const put16_labels[5 * 2 * 2 + 4 * 3] = { &&put16_12_1, /* 16h -> 8h */ &&put16_12_9, /* 16h ^> 8h */ &&put16_12_1, /* 16h -> 8s */ @@ -416,6 +431,7 @@ static void *const put16_labels[4 * 2 * 2 + 4 * 3] = { &&put16_12_92, /* 16h ^> 16h */ &&put16_12_21, /* 16h -> 16s */ &&put16_12_29, /* 16h ^> 16s */ + /* 4 byte formats */ &&put16_12_0120, /* 16h -> 24h */ &&put16_12_0920, /* 16h ^> 24h */ &&put16_12_0210, /* 16h -> 24s */ @@ -424,6 +440,10 @@ static void *const put16_labels[4 * 2 * 2 + 4 * 3] = { &&put16_12_9200, /* 16h ^> 32h */ &&put16_12_0021, /* 16h -> 32s */ &&put16_12_0029, /* 16h ^> 32s */ + &&put16_12_0120_20, /* 16h -> 20h */ + &&put16_12_0920_20, /* 16h ^> 20h */ + &&put16_12_0210_20, /* 16h -> 20s */ + &&put16_12_0290_20, /* 16h ^> 20s */ /* 3bytes format */ &&put16_12_120, /* 16h -> 24h */ &&put16_12_920, /* 16h ^> 24h */ @@ -456,6 +476,10 @@ put16_12_1200: as_u32(dst) = (uint32_t)sample << 16; goto PUT16_END; put16_12_9200: as_u32(dst) = (uint32_t)(sample ^ 0x8000) << 16; goto PUT16_END; put16_12_0021: as_u32(dst) = (uint32_t)bswap_16(sample); goto PUT16_END; put16_12_0029: as_u32(dst) = (uint32_t)bswap_16(sample) ^ 0x80; goto PUT16_END; +put16_12_0120_20: as_u32(dst) = sx20((uint32_t)sample << 4); goto PUT16_END; +put16_12_0920_20: as_u32(dst) = sx20((uint32_t)(sample ^ 0x8000) << 4); goto PUT16_END; +put16_12_0210_20: as_u32(dst) = bswap_32(sx20((uint32_t)sample << 4)); goto PUT16_END; +put16_12_0290_20: as_u32(dst) = bswap_32(sx20((uint32_t)(sample ^ 0x8000) << 4)); goto PUT16_END; put16_12_120: _put_triple(dst, (uint32_t)sample << 8); goto PUT16_END; put16_12_920: _put_triple(dst, (uint32_t)(sample ^ 0x8000) << 8); goto PUT16_END; put16_12_021: _put_triple_s(dst, (uint32_t)sample << 8); goto PUT16_END; @@ -478,7 +502,7 @@ put16_12_029_18: _put_triple_s(dst, (uint32_t)(sample ^ 0x8000) << 2); goto PUT1 #ifdef GET32_LABELS /* src_wid src_endswap sign_toggle */ -static void *const get32_labels[4 * 2 * 2 + 4 * 3] = { +static void *const get32_labels[5 * 2 * 2 + 4 * 3] = { &&get32_1_1000, /* 8h -> 32h */ &&get32_1_9000, /* 8h ^> 32h */ &&get32_1_1000, /* 8s -> 32h */ @@ -487,6 +511,7 @@ static void *const get32_labels[4 * 2 * 2 + 4 * 3] = { &&get32_12_9200, /* 16h ^> 32h */ &&get32_12_2100, /* 16s -> 32h */ &&get32_12_A100, /* 16s ^> 32h */ + /* 4 byte formats */ &&get32_0123_1230, /* 24h -> 32h */ &&get32_0123_9230, /* 24h ^> 32h */ &&get32_1230_3210, /* 24s -> 32h */ @@ -495,6 +520,10 @@ static void *const get32_labels[4 * 2 * 2 + 4 * 3] = { &&get32_1234_9234, /* 32h ^> 32h */ &&get32_1234_4321, /* 32s -> 32h */ &&get32_1234_C321, /* 32s ^> 32h */ + &&get32_0123_1230_20, /* 20h -> 32h */ + &&get32_0123_9230_20, /* 20h ^> 32h */ + &&get32_1230_3210_20, /* 20s -> 32h */ + &&get32_1230_B210_20, /* 20s ^> 32h */ /* 3bytes format */ &&get32_123_1230, /* 24h -> 32h */ &&get32_123_9230, /* 24h ^> 32h */ @@ -531,6 +560,10 @@ get32_1234_1234: sample = as_u32c(src); goto GET32_END; get32_1234_9234: sample = as_u32c(src) ^ 0x80000000; goto GET32_END; get32_1234_4321: sample = bswap_32(as_u32c(src)); goto GET32_END; get32_1234_C321: sample = bswap_32(as_u32c(src) ^ 0x80); goto GET32_END; +get32_0123_1230_20: sample = as_u32c(src) << 12; goto GET32_END; +get32_0123_9230_20: sample = (as_u32c(src) << 12) ^ 0x80000000; goto GET32_END; +get32_1230_3210_20: sample = bswap_32(as_u32c(src)) << 12; goto GET32_END; +get32_1230_B210_20: sample = (bswap_32(as_u32c(src)) << 12) ^ 0x80000000; goto GET32_END; get32_123_1230: sample = _get_triple(src) << 8; goto GET32_END; get32_123_9230: sample = (_get_triple(src) << 8) ^ 0x80000000; goto GET32_END; get32_123_3210: sample = _get_triple_s(src) << 8; goto GET32_END; @@ -553,7 +586,7 @@ __conv24_get: goto *put; #ifdef PUT32_LABELS /* dst_wid dst_endswap sign_toggle */ -static void *const put32_labels[4 * 2 * 2 + 4 * 3] = { +static void *const put32_labels[5 * 2 * 2 + 4 * 3] = { &&put32_1234_1, /* 32h -> 8h */ &&put32_1234_9, /* 32h ^> 8h */ &&put32_1234_1, /* 32h -> 8s */ @@ -562,6 +595,7 @@ static void *const put32_labels[4 * 2 * 2 + 4 * 3] = { &&put32_1234_92, /* 32h ^> 16h */ &&put32_1234_21, /* 32h -> 16s */ &&put32_1234_29, /* 32h ^> 16s */ + /* 4 byte formats */ &&put32_1234_0123, /* 32h -> 24h */ &&put32_1234_0923, /* 32h ^> 24h */ &&put32_1234_3210, /* 32h -> 24s */ @@ -570,6 +604,10 @@ static void *const put32_labels[4 * 2 * 2 + 4 * 3] = { &&put32_1234_9234, /* 32h ^> 32h */ &&put32_1234_4321, /* 32h -> 32s */ &&put32_1234_4329, /* 32h ^> 32s */ + &&put32_1234_0123_20, /* 32h -> 20h */ + &&put32_1234_0923_20, /* 32h ^> 20h */ + &&put32_1234_3210_20, /* 32h -> 20s */ + &&put32_1234_3290_20, /* 32h ^> 20s */ /* 3bytes format */ &&put32_1234_123, /* 32h -> 24h */ &&put32_1234_923, /* 32h ^> 24h */ @@ -607,6 +645,10 @@ put32_1234_1234: as_u32(dst) = sample; goto PUT32_END; put32_1234_9234: as_u32(dst) = sample ^ 0x80000000; goto PUT32_END; put32_1234_4321: as_u32(dst) = bswap_32(sample); goto PUT32_END; put32_1234_4329: as_u32(dst) = bswap_32(sample) ^ 0x80; goto PUT32_END; +put32_1234_0123_20: as_u32(dst) = sx20(sample >> 12); goto PUT32_END; +put32_1234_0923_20: as_u32(dst) = sx20((sample ^ 0x80000000) >> 12); goto PUT32_END; +put32_1234_3210_20: as_u32(dst) = bswap_32(sx20(sample >> 12)); goto PUT32_END; +put32_1234_3290_20: as_u32(dst) = bswap_32(sx20((sample ^ 0x80000000) >> 12)); goto PUT32_END; put32_1234_123: _put_triple(dst, sample >> 8); goto PUT32_END; put32_1234_923: _put_triple(dst, (sample ^ 0x80000000) >> 8); goto PUT32_END; put32_1234_321: _put_triple_s(dst, sample >> 8); goto PUT32_END;

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