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.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 unsigned int mixer_channels; 39 u8 mute_fb_id; 40 u8 volume_fb_id; 41 }; 42 43 /* This is an arbitrary number for convinience. */ 44 #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 45 struct snd_oxfw { 46 struct snd_card *card; 47 struct fw_unit *unit; 48 const struct device_info *device_info; 49 struct mutex mutex; 50 spinlock_t lock; 51 52 bool has_output; 53 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 54 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; 55 bool assumed; 56 struct cmp_connection out_conn; 57 struct cmp_connection in_conn; 58 struct amdtp_stream tx_stream; 59 struct amdtp_stream rx_stream; 60 unsigned int capture_substreams; 61 unsigned int playback_substreams; 62 63 unsigned int midi_input_ports; 64 unsigned int midi_output_ports; 65 66 bool mute; 67 s16 volume[6]; 68 s16 volume_min; 69 s16 volume_max; 70 71 int dev_lock_count; 72 bool dev_lock_changed; 73 wait_queue_head_t hwdep_wait; 74 }; 75 76 /* 77 * AV/C Stream Format Information Specification 1.1 Working Draft 78 * (Apr 2005, 1394TA) 79 */ 80 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, 81 unsigned int pid, u8 *format, unsigned int len); 82 int avc_stream_get_format(struct fw_unit *unit, 83 enum avc_general_plug_dir dir, unsigned int pid, 84 u8 *buf, unsigned int *len, unsigned int eid); 85 static inline int 86 avc_stream_get_format_single(struct fw_unit *unit, 87 enum avc_general_plug_dir dir, unsigned int pid, 88 u8 *buf, unsigned int *len) 89 { 90 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); 91 } 92 static inline int 93 avc_stream_get_format_list(struct fw_unit *unit, 94 enum avc_general_plug_dir dir, unsigned int pid, 95 u8 *buf, unsigned int *len, 96 unsigned int eid) 97 { 98 return avc_stream_get_format(unit, dir, pid, buf, len, eid); 99 } 100 101 /* 102 * AV/C Digital Interface Command Set General Specification 4.2 103 * (Sep 2004, 1394TA) 104 */ 105 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, 106 enum avc_general_plug_dir dir, 107 unsigned short pid); 108 109 int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw, 110 struct amdtp_stream *stream); 111 int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw, 112 struct amdtp_stream *stream, 113 unsigned int rate, unsigned int pcm_channels); 114 void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw, 115 struct amdtp_stream *stream); 116 void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw, 117 struct amdtp_stream *stream); 118 void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw, 119 struct amdtp_stream *stream); 120 121 struct snd_oxfw_stream_formation { 122 unsigned int rate; 123 unsigned int pcm; 124 unsigned int midi; 125 }; 126 int snd_oxfw_stream_parse_format(u8 *format, 127 struct snd_oxfw_stream_formation *formation); 128 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, 129 enum avc_general_plug_dir dir, 130 struct snd_oxfw_stream_formation *formation); 131 132 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); 133 134 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); 135 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); 136 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); 137 138 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); 139 140 int snd_oxfw_create_mixer(struct snd_oxfw *oxfw); 141 142 void snd_oxfw_proc_init(struct snd_oxfw *oxfw); 143 144 int snd_oxfw_create_midi(struct snd_oxfw *oxfw); 145 146 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); 147