- 02 Oct, 2015 6 commits
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Takashi Sakamoto authored
This commit adds PCM functionality to transmit/receive PCM samples. When one of PCM substreams are running or external clock source is selected, current sampling rate is used. Else, the sampling rate is changed as an userspace application requests. Signed-off-by:
Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by:
Takashi Iwai <tiwai@suse.de>
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Takashi Sakamoto authored
This commit adds streaming functionality for both direction. To utilize the sequence of the number of data blocks in packets, full duplex with synchronization is applied. Besides, TASCAM FireWire series allows drivers to decide which PCM data channels are enabled. For convenience, this driver always enable whole the data channels. Signed-off-by:
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Takashi Sakamoto authored
TASCAM FireWire series uses non-blocking transmission for AMDTP packet streaming, while the format of data blocks is unique. The CIP headers includes specific value in FMT field and no SYT information. In transmitted packets, the first data channel represents event counter, and the last data channel has status and control information. The rest has 24bit PCM samples with right padding. In received packets, all of data channels include 16, 24, 32bit PCM samples. There's no other kind of information. This commit adds support for this protocol. For convenience, the size of PCM samples in outgoing packet is limited by 16 and 24bit. The status and control information will be supported in future commits. Signed-off-by:
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Takashi Sakamoto authored
TASCAM FireWire series has certain registers for firmware information. This commit adds proc node to show the information. Signed-off-by:
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Takashi Sakamoto authored
TASCAM FireWire series doesn't tell drivers their capabilities, thus the drivers should have model-dependent parameters and apply it to detected devices. This commit adds a structure to represent such parameters. Signed-off-by:
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Takashi Sakamoto authored
This commit adds a new driver for TASCAM FireWire series. In this commit, this driver just creates/removes card instance according to bus event. More functionalities will be added in following commits. TASCAM FireWire series consists of: * PDI 1394P23 for IEEE 1394 PHY layer * PDI 1394L40 for IEEE 1394 LINK layer and IEC 61883 interface * XILINX XC9536XL * XILINX Spartan-II XC2S100 * ATMEL AT91M42800A Ilya Zimnovich had investigated TASCAM FireWire series in 2011, and discover some features of his FW-1804. You can see a part of his research in FFADO project. http://subversion.ffado.org/wiki/Tascam A part of my work are based on Ilya's investigation, while this series doesn't support the FW-1804, because of a lack of config ROM information and its protocol detail, especially for PCM channels. I observed that FW-1884 and FW-1082 don't work properly with 1394 OHCI controller based on VT6315. The controller can actually communicate packets to these models, while these models generate no sounds. It may be due to the PHY/LINK layer issues. Using 1394 OHCI controller produced by the other vendors such as Texas Instruments may work. Or adding another node on the bus. Signed-off-by:
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- 30 Sep, 2015 9 commits
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Takashi Sakamoto authored
Digi 002/003 family uses asynchronous transaction for messaging. The address to transmit this message is stored on a certain register. This commit allocates a range of address on OHCI 1394 host controller to handle the messaging. As long as I know, the purpose of this message seems to notify lost of synchronization. While, the meaning of content of the message is not clear. Actual examples of this messaging: * When clock source is set as internal: - 0x00007051 - 0x00007052 - 0x00007054 - 0x00007057 - 0x00007058 * When clock source is set as somewhat external: - 0x00009000 - 0x00009010 - 0x00009020 - 0x00009021 - 0x00009022 The lost often occurs when using internal clock source. In this case, users hear sounds with quite short gap every several minutes. In fact, the lost is recovered temporarily. When using with external clock source, the lost seems not to occur. The mechanism is not clear yet. Signed-off-by:
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Takashi Sakamoto authored
This commit adds hwdep interface so as the other sound drivers for units on IEEE 1394 bus have. This interface is designed for mixer/control applications. By using this interface, an application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Signed-off-by:
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Takashi Sakamoto authored
This commit adds PCM functionality to transmit/receive PCM samples. Any PCM substreams are jointed because incoming/outgoing AMDTP streams are bound. When one of PCM substream is running or external clock source is selected, current sampling rate is used. Else, the sampling rate is changed as an userspace application requests. Signed-off-by:
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Takashi Sakamoto authored
This commit adds proc node to show current clock status for debugging. As long as testing Digi 002 rack, registers can show local clock rate, local clock source. When external clock input such as S/PDIF is connected, the registers show the detection and external clock rate. Additionally, the registers show the mode of optical digital input interface. Although, a tester with Digi 003 rack reports this makes no sense. Further investigation is required for Digi 003 series. Besides, in Digi 002 rack, the S/PDIF format must be IEC 60958-4, so-called professional. Signed-off-by:
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Takashi Sakamoto authored
This commit adds a functionality to manage streaming. The streaming is not controlled by CMP in IEC 61883-6. It's controlled by IEEE 1394 write transaction to certain addresses. Several clock sources are available, while there're no differences about packet transmission. The value of SYT field in transmitted packets is always zero. Thus, streams in both direction don't build synchronization. And the device always requires received packets to transmit packets. This driver keeps to transfer outgoing stream even if they're not required. Signed-off-by:
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Takashi Sakamoto authored
Digi 002/003 family uses its own format for data blocks. The format is quite similar to AM824 in IEC 61883-6, while there're some differences: * The Valid Bit Length (VBL) code is always 0x40 in Multi-bit Linear Audio (MBLA) data channel. * The first data channel includes MIDI messages, against IEC 61883-6 recommendation. * The Counter field is always zero in MIDI conformant data channel. * Sequence multiplexing in IEC 61883-6 is not applied to the MIDI conformant data channel. * PCM samples are scrambled in received AMDTP packets. We call the way as Double-Oh-Three (DOT). The algorithm was discovered by Robin Gareus and Damien Zammit in 2012. This commit adds data processing layer to satisfy these differences. There's a quirk about transmission mode for received packets. When this driver applies non-blocking mode to outgoing packets with isochronous channel 2 or more, after 15 to 20 seconds since playbacking, any PCM samples causes noisy sound on the device. With isochronous channel 0 or 1, this doesn't occur. As long as I investigated, this quirk is not observed when applying blocking mode to the received packets. This driver applies blocking mode to outgoing packets, while non-blocking mode to incoming packgets. Signed-off-by:
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Takashi Sakamoto authored
This commit adds a new driver for Digidesign 002/003 family. This commit just creates/removes card instance according to bus event. More functions will be added in following commits. Digidesign 002/003 family consists of: * Agere FW802B for IEEE 1394 PHY layer * PDI 1394L40 for IEEE 1394 LINK layer and IEC 61883 interface * ALTERA ACEX EP1K50 for IEC 61883 layer and DSP controller * ADSP-21065L for signal processing [minor cleanup using skip_spaces() by tiwai] Signed-off-by:
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Takashi Iwai authored
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Takashi Iwai authored
The lack of const leads to a compile warning after merging i915 upstream tree: drivers/gpu/drm/i915/intel_audio.c:147:13: note: expected 'struct drm_display_mode *' but argument is of type 'const struct drm_display_mode *' Reported-by:
kbuild test robot <fengguang.wu@intel.com> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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- 29 Sep, 2015 18 commits
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kbuild test robot authored
Signed-off-by:
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Takashi Iwai authored
snd_pcm_release_substream() always calls hw_free op when the stream was opened. This is superfluous in most cases because it's been already released via explicit hw_free ioctl. Although this double call is usually OK as this callback should be written to be called multiple times, it's better to avoid superfluous calls. Reported-by:
Vinod Koul <vinod.koul@intel.com> Tested-by:
Jeeja Kp <jeeja.kp@intel.com> Signed-off-by:
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Takashi Iwai authored
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Takashi Sakamoto authored
This commit moves the codes related to data block processing from packet streaming layer to AM824 layer. Each driver initializes amdtp stream structure for AM824 data block by calling amdtp_am824_init(). Then, a memory block is allocated for AM824 specific structure. This memory block is released by calling amdtp_stream_destroy(). When setting streaming parameters, it calls amdtp_am824_set_parameters(). When starting packet streaming, it calls amdtp_stream_start(). When stopping packet streaming, it calls amdtp_stream_stop(). Signed-off-by:
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Takashi Sakamoto authored
This commit renames some macros just related to AM824 format. In later commit, they're moved to AM824 layer. Signed-off-by:
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Takashi Sakamoto authored
Setting the format of PCM substream to AMDTP stream structure is important to set a handler to copy actual PCM samples between buffers. The processing should be in data block processing layer because essentially it has no relationship to packet streaming. This commit renames PCM format setting function to prepare for integrating AM824 layer. Signed-off-by:
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Takashi Sakamoto authored
In IEC 61883-6, MIDI messages are transferred in MIDI conformant data channel. Essentially, packet streaming layer is not responsible for MIDI functionality. This commit moves MIDI trigger helper function from the layer to AM824 layer. The rest of codes related to MIDI functionality will be moved in later commits. Signed-off-by:
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Takashi Sakamoto authored
In IEC 61883-6, several types of data are available in AM824 format. The data is transferred in each data channel. The position of data channel in data block differs depending on model. Current implementation has an array to map the index of data channel in an data block to the position of actual data channel. The implementation allows each driver to access the mapping directly. In later commit, the mapping is in specific structure pushed into an opaque pointer. Helper functions are required. This commit adds the helper functions for this purpose. In IEC 61883-6, AM824 format supports many data types, while this specification easily causes over-engineering. Current AM824 implementation is allowed to handle two types of data, Multi Bit Linear Audio data (=PCM samples) and MIDI conformant data (=MIDI messages). Signed-off-by:
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Takashi Sakamoto authored
In IEC 61883-6, PCM frames are transferred in Multi Bit Linear Audio data channel. The data channel transfers 16/20/24 bit PCM samples. Thus, PCM substream has a constrain about it. This commit moves codes related to the constraint from packet streaming layer to AM824 data block processing layer. Signed-off-by:
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Takashi Sakamoto authored
The value of FDF field in CIP header is protocol-dependent. Thus, it's better to allow data block processing layer to decide the value in any timing. In AM824 data format, the value of FDF field in CIP header indicates N-flag and Nominal Sampling Frequency Code (sfc). The N-flag is for switching 'Clock-based rate control mode' and 'Command-based rate control mode'. In our implementation, 'Clock-based rate control mode' is just supported. Therefore, When sampling transfer frequency is decided, then the FDF can be set. This commit replaces 'amdtp_stream_set_parameters' with 'amdtp_am824_set_parameters' to set the FDF. This is the same timing to decide the ration between the number of data blocks and the number of PCM frames. Signed-off-by:
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Takashi Sakamoto authored
This commit adds data block processing layer for AM824 format. The new layer initializes streaming layer with its value for fmt field. Currently, most implementation of data block processing still remains streaming layer. In later commits, these codes will be moved to the layer. Signed-off-by:
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Takashi Sakamoto authored
In later commit, data block processing layer will be newly added. This layer will be named as 'amdtp-am824'. This commit renames current amdtp file to amdtp-stream, to distinguish it from the new layer. Signed-off-by:
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Takashi Sakamoto authored
Some vendor specific protocol uses its own value for fmt/fdf fields in CIP header. This commit support to set arbitrary values for the fields. In IEC 61883-6, NO-DATA code is defined for FDF field. A packet with this code includes no data even if it includes some data blocks. This commit still leaves a condition to handle this special packet. Signed-off-by:
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Takashi Sakamoto authored
ALSA: firewire-lib: add helper functions as interfaces between packet streaming layer and data block processing layer ALSA PCM framework uses PCM buffer with a concept of 'period' to synchronize userspace operations to hardware for nearly-realtime processing. Each driver implements snd_pcm_period_elapsed() to tell across of the period boundary to ALSA PCM middleware. To call the function, some drivers utilize hardware interrupt handlers, the others count handled PCM frames. Drivers for sound units on IEEE 1394 bus are the latter. They use two buffers; PCM buffer and DMA buffer for IEEE 1394 isochronous packet. PCM frames are copied between these two buffers and 'amdtp_stream' structure counts the handled PCM frames. Then, snd_pcm_period_elapsed() is called if required. Essentially, packet streaming layer should not be responsible for PCM frame processing. The PCM frame processing should be handled in each data block processing layer as a result of handling data blocks. Although, PCM frame counting is a common work for all of protocols which ALSA firewire stack is going to support. This commit adds two new helper functions as interfaces between packet streaming layer to data block processing layer. In future, each data block processing layer implements these functions. The packet streaming layer calls data block processing layer per packet by calling the functions. The data block processing layer processes data blocks and PCM frames, and returns the number of processed PCM frames. Then the packet streaming layer calculates handled PCM frames and calls snd_pcm_period_elapsed(). Signed-off-by:
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Takashi Sakamoto authored
In future commit, interface between data block processing layer and packet stream processing layer is defined. These two layers communicate the number of data blocks and the number of PCM frames. The data block processing layer has a responsibility for calculating the number of PCM frames. Therefore, 'dual wire' of Dice quirk should be handled in data block processing layer. This commit adds a member of 'frame_multiplier'. This member represents the ratio of the number of PCM frames against the number of data blocks. Usually, the value of this member is 1, while it's 2 in Dice's 'dual wire'. Signed-off-by:
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Takashi Sakamoto authored
In IEC 61883-6, one data block represents one event. In ALSA, the event is one PCM frame. Therefore, when processing one data block, current implementation counts one PCM frame. On the other hand, Dice platform has a quirk called as 'dual wire' at higher sampling rate. In detail, see comment of commit 6eb6c81e ("ALSA: dice: Split stream functionality into a file"). Currently, to handle this quirk, AMDTP stream structure has a 'double_pcm_frames' member. When this is enabled, two PCM frames are counted. Each driver set this flag by accessing the structure member directly. In future commit, some members related to AM824 data block will be moved to specific structure, to separate packet streaming layer and data block processing layer. The access will be limited by opaque pointer. For this reason, this commit adds an argument into amdtp_stream_set_parameter() to set the flag. Signed-off-by:
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Takashi Sakamoto authored
Currently, amdtp_stream_set_parameters() returns no error even if wrong arguments are given. This is not good for streaming layer because drivers can continue processing ignoring capability of streaming layer. This commit changes this function to return error code. Signed-off-by:
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Takashi Sakamoto authored
In later commit, some members related to AM824 data format will be moved from AMDTP stream structure to data block structure. This commit is a preparation for it. Additionally, current layout of AMDTP stream structure is a bit mess by several extensions. This commit also arranges the layout. Signed-off-by:
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- 28 Sep, 2015 2 commits
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Dan Carpenter authored
We want to verify that "value" is either zero or one, so we test if it is greater than one. Unfortunately, this is a signed int so it could also be negative. I think this is harmless but it introduces a static checker warning. Let's make "value" unsigned. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Takashi Iwai authored
Fixes the wrong reference names to regmap amp functions. Signed-off-by:
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- 27 Sep, 2015 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "Two bugfixes from Andy addressing at least some of the subtle NMI related wreckage which has been reported by Sasha Levin" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/nmi/64: Fix a paravirt stack-clobbering bug in the NMI code x86/paravirt: Replace the paravirt nop with a bona fide empty function
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fix from Thomass Gleixner: "A bugfix for the atmel aic5 irq chip driver which caches the wrong data and thereby breaking resume" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/atmel-aic5: Use per chip mask caches in mask/unmask()
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git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "Just two fixes: wire up the new system calls added during the last merge window, and fix another user access site" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: alignment: fix alignment handling for uaccess changes ARM: wire up new syscalls
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Olof Johansson: "Our first real batch of fixes this release cycle. Nothing really concerning, and diffstat is a bit inflated due to some DT contents moving around on STi platforms. There's a collection of them here: - A fixup for a build breakage that hits on arm64 allmodconfig in QCOM SCM firmware drivers - MMC fixes for OMAP that had quite a bit of breakage this merge window. - Misc build/warning fixes on PXA and OMAP - A couple of minor fixes for Beagleboard X15 which is now starting to see a few more users in the wild" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits) ARM: sti: dt: adapt DT to fix probe/bind issues in DRM driver ARM: dts: fix omap2+ address translation for pbias firmware: qcom: scm: Add function stubs for ARM64 ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2 ARM: omap2plus_defconfig: enable GPIO_PCA953X ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late ARM: dts: am57xx-beagle-x15: Update Phy supplies ARM: pxa: balloon3: Fix build error ARM: dts: Fixup model name for HP t410 dts ARM: dts: DRA7: fix a typo in ethernet ARM: omap2plus_defconfig: make PCF857x built-in ARM: dts: Use ti,pbias compatible string for pbias ARM: OMAP5: Cleanup options for SoC only build ARM: DRA7: Select missing options for SoC only build ARM: OMAP2+: board-generic: Remove stale of_irq macros ARM: OMAP4+: PM: erratum is used by OMAP5 and DRA7 as well ARM: dts: omap3-igep: Move eth IRQ pinmux to IGEPv2 common dtsi ARM: dts: am57xx-beagle-x15: Add wakeup irq for mcp79410 ARM: dts: am335x-phycore-som: Fix mpu voltage ...
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