1 /* 2 * oxfw.h - a part of driver for OXFW970/971 based devices 3 * 4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de> 5 * Licensed under the terms of the GNU General Public License, version 2. 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 17 #include <sound/control.h> 18 #include <sound/core.h> 19 #include <sound/initval.h> 20 #include <sound/pcm.h> 21 #include <sound/pcm_params.h> 22 #include <sound/info.h> 23 #include <sound/rawmidi.h> 24 #include <sound/firewire.h> 25 #include <sound/hwdep.h> 26 27 #include "../lib.h" 28 #include "../fcp.h" 29 #include "../packets-buffer.h" 30 #include "../iso-resources.h" 31 #include "../amdtp-am824.h" 32 #include "../cmp.h" 33 34 /* This is an arbitrary number for convinience. */ 35 #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 36 struct snd_oxfw { 37 struct snd_card *card; 38 struct fw_unit *unit; 39 struct mutex mutex; 40 spinlock_t lock; 41 42 bool wrong_dbs; 43 bool has_output; 44 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 45 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 46 bool assumed; 47 struct cmp_connection out_conn; 48 struct cmp_connection in_conn; 49 struct amdtp_stream tx_stream; 50 struct amdtp_stream rx_stream; 51 unsigned int capture_substreams; 52 unsigned int playback_substreams; 53 54 unsigned int midi_input_ports; 55 unsigned int midi_output_ports; 56 57 int dev_lock_count; 58 bool dev_lock_changed; 59 wait_queue_head_t hwdep_wait; 60 61 const struct ieee1394_device_id *entry; 62 void *spec; 63 }; 64 65 /* 66 * AV/C Stream Format Information Specification 1.1 Working Draft 67 * (Apr 2005, 1394TA) 68 */ 69 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 70 unsigned int pid, u8 *format, unsigned int len); 71 int avc_stream_get_format(struct fw_unit *unit, 72 enum avc_general_plug_dir dir, unsigned int pid, 73 u8 *buf, unsigned int *len, unsigned int eid); 74 static inline int 75 avc_stream_get_format_single(struct fw_unit *unit, 76 enum avc_general_plug_dir dir, unsigned int pid, 77 u8 *buf, unsigned int *len) 78 { 79 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 80 } 81 static inline int 82 avc_stream_get_format_list(struct fw_unit *unit, 83 enum avc_general_plug_dir dir, unsigned int pid, 84 u8 *buf, unsigned int *len, 85 unsigned int eid) 86 { 87 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 88 } 89 90 /* 91 * AV/C Digital Interface Command Set General Specification 4.2 92 * (Sep 2004, 1394TA) 93 */ 94 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 95 enum avc_general_plug_dir dir, 96 unsigned short pid); 97 98 int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw, 99 struct amdtp_stream *stream); 100 int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw, 101 struct amdtp_stream *stream, 102 unsigned int rate, unsigned int pcm_channels); 103 void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw, 104 struct amdtp_stream *stream); 105 void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw, 106 struct amdtp_stream *stream); 107 void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw, 108 struct amdtp_stream *stream); 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