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 }; 44 45 /* This is an arbitrary number for convinience. */ 46 #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 47 struct snd_oxfw { 48 struct snd_card *card; 49 struct fw_unit *unit; 50 struct mutex mutex; 51 spinlock_t lock; 52 53 bool registered; 54 struct delayed_work dwork; 55 56 // The combination of snd_oxfw_quirk enumeration-constants. 57 unsigned int quirks; 58 bool has_output; 59 bool has_input; 60 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 61 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 62 bool assumed; 63 struct cmp_connection out_conn; 64 struct cmp_connection in_conn; 65 struct amdtp_stream tx_stream; 66 struct amdtp_stream rx_stream; 67 unsigned int substreams_count; 68 69 unsigned int midi_input_ports; 70 unsigned int midi_output_ports; 71 72 int dev_lock_count; 73 bool dev_lock_changed; 74 wait_queue_head_t hwdep_wait; 75 76 const struct ieee1394_device_id *entry; 77 void *spec; 78 79 struct amdtp_domain domain; 80 }; 81 82 /* 83 * AV/C Stream Format Information Specification 1.1 Working Draft 84 * (Apr 2005, 1394TA) 85 */ 86 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 87 unsigned int pid, u8 *format, unsigned int len); 88 int avc_stream_get_format(struct fw_unit *unit, 89 enum avc_general_plug_dir dir, unsigned int pid, 90 u8 *buf, unsigned int *len, unsigned int eid); 91 static inline int 92 avc_stream_get_format_single(struct fw_unit *unit, 93 enum avc_general_plug_dir dir, unsigned int pid, 94 u8 *buf, unsigned int *len) 95 { 96 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 97 } 98 static inline int 99 avc_stream_get_format_list(struct fw_unit *unit, 100 enum avc_general_plug_dir dir, unsigned int pid, 101 u8 *buf, unsigned int *len, 102 unsigned int eid) 103 { 104 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 105 } 106 107 /* 108 * AV/C Digital Interface Command Set General Specification 4.2 109 * (Sep 2004, 1394TA) 110 */ 111 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 112 enum avc_general_plug_dir dir, 113 unsigned short pid); 114 115 int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw); 116 int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, 117 struct amdtp_stream *stream, 118 unsigned int rate, unsigned int pcm_channels, 119 unsigned int frames_per_period, 120 unsigned int frames_per_buffer); 121 int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw); 122 void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw); 123 void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw); 124 void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw); 125 126 struct snd_oxfw_stream_formation { 127 unsigned int rate; 128 unsigned int pcm; 129 unsigned int midi; 130 }; 131 int snd_oxfw_stream_parse_format(u8 *format, 132 struct snd_oxfw_stream_formation *formation); 133 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 134 enum avc_general_plug_dir dir, 135 struct snd_oxfw_stream_formation *formation); 136 137 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); 138 139 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); 140 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); 141 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); 142 143 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); 144 145 void snd_oxfw_proc_init(struct snd_oxfw *oxfw); 146 147 int snd_oxfw_create_midi(struct snd_oxfw *oxfw); 148 149 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); 150 151 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie); 152 int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw); 153 void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw); 154