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 struct device_info { 35 const char *driver_name; 36 const char *vendor_name; 37 const char *model_name; 38 }; 39 40 /* This is an arbitrary number for convinience. */ 41 #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 42 struct snd_oxfw { 43 struct snd_card *card; 44 struct fw_unit *unit; 45 const struct device_info *device_info; 46 struct mutex mutex; 47 spinlock_t lock; 48 49 bool wrong_dbs; 50 bool has_output; 51 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 52 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 53 bool assumed; 54 struct cmp_connection out_conn; 55 struct cmp_connection in_conn; 56 struct amdtp_stream tx_stream; 57 struct amdtp_stream rx_stream; 58 unsigned int capture_substreams; 59 unsigned int playback_substreams; 60 61 unsigned int midi_input_ports; 62 unsigned int midi_output_ports; 63 64 int dev_lock_count; 65 bool dev_lock_changed; 66 wait_queue_head_t hwdep_wait; 67 68 const struct ieee1394_device_id *entry; 69 void *spec; 70 }; 71 72 /* 73 * AV/C Stream Format Information Specification 1.1 Working Draft 74 * (Apr 2005, 1394TA) 75 */ 76 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 77 unsigned int pid, u8 *format, unsigned int len); 78 int avc_stream_get_format(struct fw_unit *unit, 79 enum avc_general_plug_dir dir, unsigned int pid, 80 u8 *buf, unsigned int *len, unsigned int eid); 81 static inline int 82 avc_stream_get_format_single(struct fw_unit *unit, 83 enum avc_general_plug_dir dir, unsigned int pid, 84 u8 *buf, unsigned int *len) 85 { 86 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 87 } 88 static inline int 89 avc_stream_get_format_list(struct fw_unit *unit, 90 enum avc_general_plug_dir dir, unsigned int pid, 91 u8 *buf, unsigned int *len, 92 unsigned int eid) 93 { 94 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 95 } 96 97 /* 98 * AV/C Digital Interface Command Set General Specification 4.2 99 * (Sep 2004, 1394TA) 100 */ 101 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 102 enum avc_general_plug_dir dir, 103 unsigned short pid); 104 105 int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw, 106 struct amdtp_stream *stream); 107 int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw, 108 struct amdtp_stream *stream, 109 unsigned int rate, unsigned int pcm_channels); 110 void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw, 111 struct amdtp_stream *stream); 112 void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw, 113 struct amdtp_stream *stream); 114 void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw, 115 struct amdtp_stream *stream); 116 117 struct snd_oxfw_stream_formation { 118 unsigned int rate; 119 unsigned int pcm; 120 unsigned int midi; 121 }; 122 int snd_oxfw_stream_parse_format(u8 *format, 123 struct snd_oxfw_stream_formation *formation); 124 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 125 enum avc_general_plug_dir dir, 126 struct snd_oxfw_stream_formation *formation); 127 128 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); 129 130 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); 131 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); 132 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); 133 134 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); 135 136 void snd_oxfw_proc_init(struct snd_oxfw *oxfw); 137 138 int snd_oxfw_create_midi(struct snd_oxfw *oxfw); 139 140 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); 141 142 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie); 143