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 enum snd_oxfw_quirk { 36 // Postpone transferring packets during handling asynchronous transaction. As a result, 37 // next isochronous packet includes more events than one packet can include. 38 SND_OXFW_QUIRK_JUMBO_PAYLOAD = 0x01, 39 // The dbs field of CIP header in tx packet is wrong. 40 SND_OXFW_QUIRK_WRONG_DBS = 0x02, 41 // Blocking transmission mode is used. 42 SND_OXFW_QUIRK_BLOCKING_TRANSMISSION = 0x04, 43 // Stanton SCS1.d and SCS1.m support unique transaction. 44 SND_OXFW_QUIRK_SCS_TRANSACTION = 0x08, 45 // Apogee Duet FireWire ignores data blocks in packet with NO_INFO for audio data 46 // processing, while output level meter moves. Any value in syt field of packet takes 47 // the device to process audio data even if the value is invalid in a point of 48 // IEC 61883-1/6. 49 SND_OXFW_QUIRK_IGNORE_NO_INFO_PACKET = 0x10, 50 }; 51 52 /* This is an arbitrary number for convinience. */ 53 #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 54 struct snd_oxfw { 55 struct snd_card *card; 56 struct fw_unit *unit; 57 struct mutex mutex; 58 spinlock_t lock; 59 60 // The combination of snd_oxfw_quirk enumeration-constants. 61 unsigned int quirks; 62 bool has_output; 63 bool has_input; 64 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 65 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 66 bool assumed; 67 struct cmp_connection out_conn; 68 struct cmp_connection in_conn; 69 struct amdtp_stream tx_stream; 70 struct amdtp_stream rx_stream; 71 unsigned int substreams_count; 72 73 unsigned int midi_input_ports; 74 unsigned int midi_output_ports; 75 76 int dev_lock_count; 77 bool dev_lock_changed; 78 wait_queue_head_t hwdep_wait; 79 80 void *spec; 81 82 struct amdtp_domain domain; 83 }; 84 85 /* 86 * AV/C Stream Format Information Specification 1.1 Working Draft 87 * (Apr 2005, 1394TA) 88 */ 89 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 90 unsigned int pid, u8 *format, unsigned int len); 91 int avc_stream_get_format(struct fw_unit *unit, 92 enum avc_general_plug_dir dir, unsigned int pid, 93 u8 *buf, unsigned int *len, unsigned int eid); 94 static inline int 95 avc_stream_get_format_single(struct fw_unit *unit, 96 enum avc_general_plug_dir dir, unsigned int pid, 97 u8 *buf, unsigned int *len) 98 { 99 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 100 } 101 static inline int 102 avc_stream_get_format_list(struct fw_unit *unit, 103 enum avc_general_plug_dir dir, unsigned int pid, 104 u8 *buf, unsigned int *len, 105 unsigned int eid) 106 { 107 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 108 } 109 110 /* 111 * AV/C Digital Interface Command Set General Specification 4.2 112 * (Sep 2004, 1394TA) 113 */ 114 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 115 enum avc_general_plug_dir dir, 116 unsigned short pid); 117 118 int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw); 119 int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 120 struct amdtp_stream *stream, 121 unsigned int rate, unsigned int pcm_channels, 122 unsigned int frames_per_period, 123 unsigned int frames_per_buffer); 124 int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw); 125 void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw); 126 void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw); 127 void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw); 128 129 struct snd_oxfw_stream_formation { 130 unsigned int rate; 131 unsigned int pcm; 132 unsigned int midi; 133 }; 134 int snd_oxfw_stream_parse_format(u8 *format, 135 struct snd_oxfw_stream_formation *formation); 136 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 137 enum avc_general_plug_dir dir, 138 struct snd_oxfw_stream_formation *formation); 139 140 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); 141 142 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); 143 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); 144 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); 145 146 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); 147 148 void snd_oxfw_proc_init(struct snd_oxfw *oxfw); 149 150 int snd_oxfw_create_midi(struct snd_oxfw *oxfw); 151 152 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); 153 154 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie); 155 int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw); 156 void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw); 157