1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * oxfw.h - a part of driver for OXFW970/971 based devices 4 * 5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de> 6 */ 7 8 #include <linux/device.h> 9 #include <linux/firewire.h> 10 #include <linux/firewire-constants.h> 11 #include <linux/module.h> 12 #include <linux/mod_devicetable.h> 13 #include <linux/mutex.h> 14 #include <linux/slab.h> 15 #include <linux/compat.h> 16 #include <linux/sched/signal.h> 17 18 #include <sound/control.h> 19 #include <sound/core.h> 20 #include <sound/initval.h> 21 #include <sound/pcm.h> 22 #include <sound/pcm_params.h> 23 #include <sound/info.h> 24 #include <sound/rawmidi.h> 25 #include <sound/firewire.h> 26 #include <sound/hwdep.h> 27 28 #include "../lib.h" 29 #include "../fcp.h" 30 #include "../packets-buffer.h" 31 #include "../iso-resources.h" 32 #include "../amdtp-am824.h" 33 #include "../cmp.h" 34 35 /* This is an arbitrary number for convinience. */ 36 #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 37 struct snd_oxfw { 38 struct snd_card *card; 39 struct fw_unit *unit; 40 struct mutex mutex; 41 spinlock_t lock; 42 43 bool registered; 44 struct delayed_work dwork; 45 46 bool wrong_dbs; 47 bool has_output; 48 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 49 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 50 bool assumed; 51 struct cmp_connection out_conn; 52 struct cmp_connection in_conn; 53 struct amdtp_stream tx_stream; 54 struct amdtp_stream rx_stream; 55 unsigned int substreams_count; 56 57 unsigned int midi_input_ports; 58 unsigned int midi_output_ports; 59 60 int dev_lock_count; 61 bool dev_lock_changed; 62 wait_queue_head_t hwdep_wait; 63 64 const struct ieee1394_device_id *entry; 65 void *spec; 66 }; 67 68 /* 69 * AV/C Stream Format Information Specification 1.1 Working Draft 70 * (Apr 2005, 1394TA) 71 */ 72 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 73 unsigned int pid, u8 *format, unsigned int len); 74 int avc_stream_get_format(struct fw_unit *unit, 75 enum avc_general_plug_dir dir, unsigned int pid, 76 u8 *buf, unsigned int *len, unsigned int eid); 77 static inline int 78 avc_stream_get_format_single(struct fw_unit *unit, 79 enum avc_general_plug_dir dir, unsigned int pid, 80 u8 *buf, unsigned int *len) 81 { 82 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 83 } 84 static inline int 85 avc_stream_get_format_list(struct fw_unit *unit, 86 enum avc_general_plug_dir dir, unsigned int pid, 87 u8 *buf, unsigned int *len, 88 unsigned int eid) 89 { 90 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 91 } 92 93 /* 94 * AV/C Digital Interface Command Set General Specification 4.2 95 * (Sep 2004, 1394TA) 96 */ 97 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 98 enum avc_general_plug_dir dir, 99 unsigned short pid); 100 101 int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw); 102 int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 103 struct amdtp_stream *stream, 104 unsigned int rate, unsigned int pcm_channels); 105 int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw); 106 void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw); 107 void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw); 108 void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw); 109 110 struct snd_oxfw_stream_formation { 111 unsigned int rate; 112 unsigned int pcm; 113 unsigned int midi; 114 }; 115 int snd_oxfw_stream_parse_format(u8 *format, 116 struct snd_oxfw_stream_formation *formation); 117 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 118 enum avc_general_plug_dir dir, 119 struct snd_oxfw_stream_formation *formation); 120 121 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); 122 123 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); 124 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); 125 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); 126 127 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); 128 129 void snd_oxfw_proc_init(struct snd_oxfw *oxfw); 130 131 int snd_oxfw_create_midi(struct snd_oxfw *oxfw); 132 133 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); 134 135 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie); 136 int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw); 137 void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw); 138