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 struct amdtp_domain domain; 68 }; 69 70 /* 71 * AV/C Stream Format Information Specification 1.1 Working Draft 72 * (Apr 2005, 1394TA) 73 */ 74 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 75 unsigned int pid, u8 *format, unsigned int len); 76 int avc_stream_get_format(struct fw_unit *unit, 77 enum avc_general_plug_dir dir, unsigned int pid, 78 u8 *buf, unsigned int *len, unsigned int eid); 79 static inline int 80 avc_stream_get_format_single(struct fw_unit *unit, 81 enum avc_general_plug_dir dir, unsigned int pid, 82 u8 *buf, unsigned int *len) 83 { 84 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 85 } 86 static inline int 87 avc_stream_get_format_list(struct fw_unit *unit, 88 enum avc_general_plug_dir dir, unsigned int pid, 89 u8 *buf, unsigned int *len, 90 unsigned int eid) 91 { 92 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 93 } 94 95 /* 96 * AV/C Digital Interface Command Set General Specification 4.2 97 * (Sep 2004, 1394TA) 98 */ 99 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 100 enum avc_general_plug_dir dir, 101 unsigned short pid); 102 103 int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw); 104 int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 105 struct amdtp_stream *stream, 106 unsigned int rate, unsigned int pcm_channels, 107 unsigned int frames_per_period); 108 int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw); 109 void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw); 110 void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw); 111 void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw); 112 113 struct snd_oxfw_stream_formation { 114 unsigned int rate; 115 unsigned int pcm; 116 unsigned int midi; 117 }; 118 int snd_oxfw_stream_parse_format(u8 *format, 119 struct snd_oxfw_stream_formation *formation); 120 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 121 enum avc_general_plug_dir dir, 122 struct snd_oxfw_stream_formation *formation); 123 124 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); 125 126 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); 127 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); 128 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); 129 130 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); 131 132 void snd_oxfw_proc_init(struct snd_oxfw *oxfw); 133 134 int snd_oxfw_create_midi(struct snd_oxfw *oxfw); 135 136 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); 137 138 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie); 139 int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw); 140 void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw); 141