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 const struct device_info *device_info; 40 struct mutex mutex; 41 spinlock_t lock; 42 43 bool wrong_dbs; 44 bool has_output; 45 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 46 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 47 bool assumed; 48 struct cmp_connection out_conn; 49 struct cmp_connection in_conn; 50 struct amdtp_stream tx_stream; 51 struct amdtp_stream rx_stream; 52 unsigned int capture_substreams; 53 unsigned int playback_substreams; 54 55 unsigned int midi_input_ports; 56 unsigned int midi_output_ports; 57 58 int dev_lock_count; 59 bool dev_lock_changed; 60 wait_queue_head_t hwdep_wait; 61 62 const struct ieee1394_device_id *entry; 63 void *spec; 64 }; 65 66 /* 67 * AV/C Stream Format Information Specification 1.1 Working Draft 68 * (Apr 2005, 1394TA) 69 */ 70 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 71 unsigned int pid, u8 *format, unsigned int len); 72 int avc_stream_get_format(struct fw_unit *unit, 73 enum avc_general_plug_dir dir, unsigned int pid, 74 u8 *buf, unsigned int *len, unsigned int eid); 75 static inline int 76 avc_stream_get_format_single(struct fw_unit *unit, 77 enum avc_general_plug_dir dir, unsigned int pid, 78 u8 *buf, unsigned int *len) 79 { 80 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 81 } 82 static inline int 83 avc_stream_get_format_list(struct fw_unit *unit, 84 enum avc_general_plug_dir dir, unsigned int pid, 85 u8 *buf, unsigned int *len, 86 unsigned int eid) 87 { 88 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 89 } 90 91 /* 92 * AV/C Digital Interface Command Set General Specification 4.2 93 * (Sep 2004, 1394TA) 94 */ 95 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 96 enum avc_general_plug_dir dir, 97 unsigned short pid); 98 99 int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw, 100 struct amdtp_stream *stream); 101 int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw, 102 struct amdtp_stream *stream, 103 unsigned int rate, unsigned int pcm_channels); 104 void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw, 105 struct amdtp_stream *stream); 106 void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw, 107 struct amdtp_stream *stream); 108 void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw, 109 struct amdtp_stream *stream); 110 111 struct snd_oxfw_stream_formation { 112 unsigned int rate; 113 unsigned int pcm; 114 unsigned int midi; 115 }; 116 int snd_oxfw_stream_parse_format(u8 *format, 117 struct snd_oxfw_stream_formation *formation); 118 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 119 enum avc_general_plug_dir dir, 120 struct snd_oxfw_stream_formation *formation); 121 122 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); 123 124 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); 125 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); 126 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); 127 128 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); 129 130 void snd_oxfw_proc_init(struct snd_oxfw *oxfw); 131 132 int snd_oxfw_create_midi(struct snd_oxfw *oxfw); 133 134 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); 135 136 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie); 137 int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw); 138 void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw); 139