| /* |
| * dice.h - a part of driver for Dice based devices |
| * |
| * Copyright (c) Clemens Ladisch |
| * Copyright (c) 2014 Takashi Sakamoto |
| * |
| * Licensed under the terms of the GNU General Public License, version 2. |
| */ |
| |
| #ifndef SOUND_DICE_H_INCLUDED |
| #define SOUND_DICE_H_INCLUDED |
| |
| #include <linux/compat.h> |
| #include <linux/completion.h> |
| #include <linux/delay.h> |
| #include <linux/device.h> |
| #include <linux/firewire.h> |
| #include <linux/firewire-constants.h> |
| #include <linux/jiffies.h> |
| #include <linux/module.h> |
| #include <linux/mod_devicetable.h> |
| #include <linux/mutex.h> |
| #include <linux/slab.h> |
| #include <linux/spinlock.h> |
| #include <linux/wait.h> |
| |
| #include <sound/control.h> |
| #include <sound/core.h> |
| #include <sound/firewire.h> |
| #include <sound/hwdep.h> |
| #include <sound/info.h> |
| #include <sound/initval.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| |
| #include "../amdtp.h" |
| #include "../iso-resources.h" |
| #include "../lib.h" |
| #include "dice-interface.h" |
| |
| struct snd_dice { |
| struct snd_card *card; |
| struct fw_unit *unit; |
| spinlock_t lock; |
| struct mutex mutex; |
| |
| /* Offsets for sub-addresses */ |
| unsigned int global_offset; |
| unsigned int rx_offset; |
| unsigned int tx_offset; |
| unsigned int sync_offset; |
| unsigned int rsrv_offset; |
| |
| unsigned int clock_caps; |
| unsigned int rx_channels[3]; |
| unsigned int rx_midi_ports[3]; |
| struct fw_address_handler notification_handler; |
| int owner_generation; |
| int dev_lock_count; /* > 0 driver, < 0 userspace */ |
| bool dev_lock_changed; |
| bool global_enabled; |
| struct completion clock_accepted; |
| wait_queue_head_t hwdep_wait; |
| u32 notification_bits; |
| struct fw_iso_resources rx_resources; |
| struct amdtp_stream rx_stream; |
| }; |
| |
| enum snd_dice_addr_type { |
| SND_DICE_ADDR_TYPE_PRIVATE, |
| SND_DICE_ADDR_TYPE_GLOBAL, |
| SND_DICE_ADDR_TYPE_TX, |
| SND_DICE_ADDR_TYPE_RX, |
| SND_DICE_ADDR_TYPE_SYNC, |
| SND_DICE_ADDR_TYPE_RSRV, |
| }; |
| |
| int snd_dice_transaction_write(struct snd_dice *dice, |
| enum snd_dice_addr_type type, |
| unsigned int offset, |
| void *buf, unsigned int len); |
| int snd_dice_transaction_read(struct snd_dice *dice, |
| enum snd_dice_addr_type type, unsigned int offset, |
| void *buf, unsigned int len); |
| |
| static inline int snd_dice_transaction_write_global(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_write(dice, |
| SND_DICE_ADDR_TYPE_GLOBAL, offset, |
| buf, len); |
| } |
| static inline int snd_dice_transaction_read_global(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_read(dice, |
| SND_DICE_ADDR_TYPE_GLOBAL, offset, |
| buf, len); |
| } |
| static inline int snd_dice_transaction_write_tx(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_TX, offset, |
| buf, len); |
| } |
| static inline int snd_dice_transaction_read_tx(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_TX, offset, |
| buf, len); |
| } |
| static inline int snd_dice_transaction_write_rx(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_RX, offset, |
| buf, len); |
| } |
| static inline int snd_dice_transaction_read_rx(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_RX, offset, |
| buf, len); |
| } |
| static inline int snd_dice_transaction_write_sync(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_SYNC, offset, |
| buf, len); |
| } |
| static inline int snd_dice_transaction_read_sync(struct snd_dice *dice, |
| unsigned int offset, |
| void *buf, unsigned int len) |
| { |
| return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_SYNC, offset, |
| buf, len); |
| } |
| |
| int snd_dice_transaction_set_clock_source(struct snd_dice *dice, |
| unsigned int source); |
| int snd_dice_transaction_get_clock_source(struct snd_dice *dice, |
| unsigned int *source); |
| int snd_dice_transaction_set_rate(struct snd_dice *dice, unsigned int rate); |
| int snd_dice_transaction_get_rate(struct snd_dice *dice, unsigned int *rate); |
| int snd_dice_transaction_set_enable(struct snd_dice *dice); |
| void snd_dice_transaction_clear_enable(struct snd_dice *dice); |
| int snd_dice_transaction_init(struct snd_dice *dice); |
| int snd_dice_transaction_reinit(struct snd_dice *dice); |
| void snd_dice_transaction_destroy(struct snd_dice *dice); |
| |
| #define SND_DICE_RATES_COUNT 7 |
| extern const unsigned int snd_dice_rates[SND_DICE_RATES_COUNT]; |
| |
| int snd_dice_stream_get_rate_mode(struct snd_dice *dice, |
| unsigned int rate, unsigned int *mode); |
| |
| int snd_dice_stream_start_packets(struct snd_dice *dice); |
| int snd_dice_stream_start(struct snd_dice *dice); |
| void snd_dice_stream_stop_packets(struct snd_dice *dice); |
| void snd_dice_stream_stop(struct snd_dice *dice); |
| int snd_dice_stream_init(struct snd_dice *dice); |
| void snd_dice_stream_destroy(struct snd_dice *dice); |
| void snd_dice_stream_update(struct snd_dice *dice); |
| |
| int snd_dice_stream_lock_try(struct snd_dice *dice); |
| void snd_dice_stream_lock_release(struct snd_dice *dice); |
| |
| int snd_dice_create_pcm(struct snd_dice *dice); |
| |
| int snd_dice_create_hwdep(struct snd_dice *dice); |
| |
| void snd_dice_create_proc(struct snd_dice *dice); |
| |
| #endif |