// SPDX-License-Identifier: GPL-2.0-only /* * bebob_maudio.c - a part of driver for BeBoB based devices * * Copyright (c) 2013-2014 Takashi Sakamoto */ #include "./bebob.h" #include <sound/control.h> /* * Just powering on, Firewire 410/Audiophile/1814 and ProjectMix I/O wait to * download firmware blob. To enable these devices, drivers should upload * firmware blob and send a command to initialize configuration to factory * settings when completing uploading. Then these devices generate bus reset * and are recognized as new devices with the firmware. * * But with firmware version 5058 or later, the firmware is stored to flash * memory in the device and drivers can tell bootloader to load the firmware * by sending a cue. This cue must be sent one time. * * For streaming, both of output and input streams are needed for Firewire 410 * and Ozonic. The single stream is OK for the other devices even if the clock * source is not SYT-Match (I note no devices use SYT-Match). * * Without streaming, the devices except for Firewire Audiophile can mix any * input and output. For this reason, Audiophile cannot be used as standalone * mixer. * * Firewire 1814 and ProjectMix I/O uses special firmware. It will be freezed * when receiving any commands which the firmware can't understand. These * devices utilize completely different system to control. It is some * write-transaction directly into a certain address. All of addresses for mixer * functionality is between 0xffc700700000 to 0xffc70070009c. */ /* Offset from information register */ #define INFO_OFFSET_SW_DATE … /* Bootloader Protocol Version 1 */ #define MAUDIO_BOOTLOADER_CUE1 … /* * Initializing configuration to factory settings (= 0x1101), (swapped in line), * Command code is zero (= 0x00), * the number of operands is zero (= 0x00)(at least significant byte) */ #define MAUDIO_BOOTLOADER_CUE2 … /* padding */ #define MAUDIO_BOOTLOADER_CUE3 … #define MAUDIO_SPECIFIC_ADDRESS … #define METER_OFFSET … /* some device has sync info after metering data */ #define METER_SIZE_SPECIAL … #define METER_SIZE_FW410 … #define METER_SIZE_AUDIOPHILE … #define METER_SIZE_SOLO … #define METER_SIZE_OZONIC … #define METER_SIZE_NRV10 … /* labels for metering */ #define ANA_IN … #define ANA_OUT … #define DIG_IN … #define SPDIF_IN … #define ADAT_IN … #define DIG_OUT … #define SPDIF_OUT … #define ADAT_OUT … #define STRM_IN … #define AUX_OUT … #define HP_OUT … /* for NRV */ #define UNKNOWN_METER … struct special_params { … }; /* * For some M-Audio devices, this module just send cue to load firmware. After * loading, the device generates bus reset and newly detected. * * If we make any transactions to load firmware, the operation may failed. */ int snd_bebob_maudio_load_firmware(struct fw_unit *unit) { … } static inline int get_meter(struct snd_bebob *bebob, void *buf, unsigned int size) { … } static int check_clk_sync(struct snd_bebob *bebob, unsigned int size, bool *sync) { … } /* * dig_fmt: 0x00:S/PDIF, 0x01:ADAT * clk_lock: 0x00:unlock, 0x01:lock */ static int avc_maudio_set_special_clk(struct snd_bebob *bebob, unsigned int clk_src, unsigned int dig_in_fmt, unsigned int dig_out_fmt, unsigned int clk_lock) { … } static void special_stream_formation_set(struct snd_bebob *bebob) { … } static int add_special_controls(struct snd_bebob *bebob); int snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814) { … } /* Input plug shows actual rate. Output plug is needless for this purpose. */ static int special_get_rate(struct snd_bebob *bebob, unsigned int *rate) { … } static int special_set_rate(struct snd_bebob *bebob, unsigned int rate) { … } /* Clock source control for special firmware */ static const enum snd_bebob_clock_type special_clk_types[] = …; static int special_clk_get(struct snd_bebob *bebob, unsigned int *id) { … } static int special_clk_ctl_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *einf) { … } static int special_clk_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) { … } static int special_clk_ctl_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) { … } static const struct snd_kcontrol_new special_clk_ctl = …; /* Clock synchronization control for special firmware */ static int special_sync_ctl_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *einf) { … } static int special_sync_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) { … } static const struct snd_kcontrol_new special_sync_ctl = …; /* Digital input interface control for special firmware */ static const char *const special_dig_in_iface_labels[] = …; static int special_dig_in_iface_ctl_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *einf) { … } static int special_dig_in_iface_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) { … } static int special_dig_in_iface_ctl_set(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) { … } static const struct snd_kcontrol_new special_dig_in_iface_ctl = …; /* Digital output interface control for special firmware */ static const char *const special_dig_out_iface_labels[] = …; static int special_dig_out_iface_ctl_info(struct snd_kcontrol *kctl, struct snd_ctl_elem_info *einf) { … } static int special_dig_out_iface_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) { … } static int special_dig_out_iface_ctl_set(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *uval) { … } static const struct snd_kcontrol_new special_dig_out_iface_ctl = …; static int add_special_controls(struct snd_bebob *bebob) { … } /* Hardware metering for special firmware */ static const char *const special_meter_labels[] = …; static int special_meter_get(struct snd_bebob *bebob, u32 *target, unsigned int size) { … } /* last 4 bytes are omitted because it's clock info. */ static const char *const fw410_meter_labels[] = …; static const char *const audiophile_meter_labels[] = …; static const char *const solo_meter_labels[] = …; /* no clock info */ static const char *const ozonic_meter_labels[] = …; /* TODO: need testers. these positions are based on authour's assumption */ static const char *const nrv10_meter_labels[] = …; static int normal_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size) { … } /* for special customized devices */ static const struct snd_bebob_rate_spec special_rate_spec = …; static const struct snd_bebob_clock_spec special_clk_spec = …; static const struct snd_bebob_meter_spec special_meter_spec = …; const struct snd_bebob_spec maudio_special_spec = …; /* Firewire 410 specification */ static const struct snd_bebob_rate_spec usual_rate_spec = …; static const struct snd_bebob_meter_spec fw410_meter_spec = …; const struct snd_bebob_spec maudio_fw410_spec = …; /* Firewire Audiophile specification */ static const struct snd_bebob_meter_spec audiophile_meter_spec = …; const struct snd_bebob_spec maudio_audiophile_spec = …; /* Firewire Solo specification */ static const struct snd_bebob_meter_spec solo_meter_spec = …; const struct snd_bebob_spec maudio_solo_spec = …; /* Ozonic specification */ static const struct snd_bebob_meter_spec ozonic_meter_spec = …; const struct snd_bebob_spec maudio_ozonic_spec = …; /* NRV10 specification */ static const struct snd_bebob_meter_spec nrv10_meter_spec = …; const struct snd_bebob_spec maudio_nrv10_spec = …;
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