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linux_old1/sound/firewire/digi00x/digi00x.h

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ALSA: firewire-digi00x: add skeleton for Digi 002/003 family 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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-30 08:39:16 +08:00
/*
* digi00x.h - a part of driver for Digidesign Digi 002/003 family
*
* Copyright (c) 2014-2015 Takashi Sakamoto
*
* Licensed under the terms of the GNU General Public License, version 2.
*/
#ifndef SOUND_DIGI00X_H_INCLUDED
#define SOUND_DIGI00X_H_INCLUDED
#include <linux/compat.h>
#include <linux/device.h>
#include <linux/firewire.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/initval.h>
ALSA: firewire-digi00x: add data block processing layer 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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-30 08:39:17 +08:00
#include <sound/pcm.h>
#include <sound/pcm_params.h>
ALSA: firewire-digi00x: add skeleton for Digi 002/003 family 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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-30 08:39:16 +08:00
#include "../lib.h"
ALSA: firewire-digi00x: add data block processing layer 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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-30 08:39:17 +08:00
#include "../iso-resources.h"
#include "../amdtp-stream.h"
ALSA: firewire-digi00x: add skeleton for Digi 002/003 family 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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-30 08:39:16 +08:00
struct snd_dg00x {
struct snd_card *card;
struct fw_unit *unit;
struct mutex mutex;
};
ALSA: firewire-digi00x: add data block processing layer 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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-30 08:39:17 +08:00
int amdtp_dot_init(struct amdtp_stream *s, struct fw_unit *unit,
enum amdtp_stream_direction dir);
int amdtp_dot_set_parameters(struct amdtp_stream *s, unsigned int rate,
unsigned int pcm_channels,
unsigned int midi_ports);
void amdtp_dot_reset(struct amdtp_stream *s);
int amdtp_dot_add_pcm_hw_constraints(struct amdtp_stream *s,
struct snd_pcm_runtime *runtime);
void amdtp_dot_set_pcm_format(struct amdtp_stream *s, snd_pcm_format_t format);
ALSA: firewire-digi00x: add skeleton for Digi 002/003 family 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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-30 08:39:16 +08:00
#endif