Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 1 | /* |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 2 | * Line6 Linux USB driver - 0.9.1beta |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 3 | * |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 4 | * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License as |
| 8 | * published by the Free Software Foundation, version 2. |
| 9 | * |
| 10 | */ |
| 11 | |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 12 | #include <linux/slab.h> |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 13 | #include <sound/core.h> |
| 14 | #include <sound/control.h> |
| 15 | #include <sound/pcm.h> |
| 16 | #include <sound/pcm_params.h> |
| 17 | |
| 18 | #include "audio.h" |
| 19 | #include "capture.h" |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 20 | #include "driver.h" |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 21 | #include "playback.h" |
| 22 | #include "pod.h" |
| 23 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 24 | #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE |
| 25 | |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 26 | static struct snd_line6_pcm *dev2pcm(struct device *dev) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 27 | { |
| 28 | struct usb_interface *interface = to_usb_interface(dev); |
| 29 | struct usb_line6 *line6 = usb_get_intfdata(interface); |
| 30 | struct snd_line6_pcm *line6pcm = line6->line6pcm; |
| 31 | return line6pcm; |
| 32 | } |
| 33 | |
| 34 | /* |
| 35 | "read" request on "impulse_volume" special file. |
| 36 | */ |
| 37 | static ssize_t pcm_get_impulse_volume(struct device *dev, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 38 | struct device_attribute *attr, char *buf) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 39 | { |
| 40 | return sprintf(buf, "%d\n", dev2pcm(dev)->impulse_volume); |
| 41 | } |
| 42 | |
| 43 | /* |
| 44 | "write" request on "impulse_volume" special file. |
| 45 | */ |
| 46 | static ssize_t pcm_set_impulse_volume(struct device *dev, |
| 47 | struct device_attribute *attr, |
| 48 | const char *buf, size_t count) |
| 49 | { |
| 50 | struct snd_line6_pcm *line6pcm = dev2pcm(dev); |
Johannes Thumshirn | cdf5e55 | 2012-08-06 14:08:50 +0200 | [diff] [blame] | 51 | int value; |
Laurent Navet | a376290 | 2012-11-30 11:57:32 +0100 | [diff] [blame^] | 52 | int ret; |
Johannes Thumshirn | cdf5e55 | 2012-08-06 14:08:50 +0200 | [diff] [blame] | 53 | |
Laurent Navet | a376290 | 2012-11-30 11:57:32 +0100 | [diff] [blame^] | 54 | ret = kstrtoint(buf, 10, &value); |
| 55 | if (ret < 0) |
| 56 | return ret; |
Johannes Thumshirn | cdf5e55 | 2012-08-06 14:08:50 +0200 | [diff] [blame] | 57 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 58 | line6pcm->impulse_volume = value; |
| 59 | |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 60 | if (value > 0) |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 61 | line6_pcm_acquire(line6pcm, LINE6_BITS_PCM_IMPULSE); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 62 | else |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 63 | line6_pcm_release(line6pcm, LINE6_BITS_PCM_IMPULSE); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 64 | |
| 65 | return count; |
| 66 | } |
| 67 | |
| 68 | /* |
| 69 | "read" request on "impulse_period" special file. |
| 70 | */ |
| 71 | static ssize_t pcm_get_impulse_period(struct device *dev, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 72 | struct device_attribute *attr, char *buf) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 73 | { |
| 74 | return sprintf(buf, "%d\n", dev2pcm(dev)->impulse_period); |
| 75 | } |
| 76 | |
| 77 | /* |
| 78 | "write" request on "impulse_period" special file. |
| 79 | */ |
| 80 | static ssize_t pcm_set_impulse_period(struct device *dev, |
| 81 | struct device_attribute *attr, |
| 82 | const char *buf, size_t count) |
| 83 | { |
Laurent Navet | a376290 | 2012-11-30 11:57:32 +0100 | [diff] [blame^] | 84 | int value; |
| 85 | int ret; |
| 86 | |
| 87 | ret = kstrtoint(buf, 10, &value); |
| 88 | if (ret < 0) |
| 89 | return ret; |
| 90 | |
| 91 | dev2pcm(dev)->impulse_period = value; |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 92 | return count; |
| 93 | } |
| 94 | |
Greg Kroah-Hartman | a3a972a | 2010-11-18 11:21:04 -0800 | [diff] [blame] | 95 | static DEVICE_ATTR(impulse_volume, S_IWUSR | S_IRUGO, pcm_get_impulse_volume, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 96 | pcm_set_impulse_volume); |
Greg Kroah-Hartman | a3a972a | 2010-11-18 11:21:04 -0800 | [diff] [blame] | 97 | static DEVICE_ATTR(impulse_period, S_IWUSR | S_IRUGO, pcm_get_impulse_period, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 98 | pcm_set_impulse_period); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 99 | |
| 100 | #endif |
| 101 | |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 102 | static bool test_flags(unsigned long flags0, unsigned long flags1, |
| 103 | unsigned long mask) |
| 104 | { |
| 105 | return ((flags0 & mask) == 0) && ((flags1 & mask) != 0); |
| 106 | } |
| 107 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 108 | int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int channels) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 109 | { |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 110 | unsigned long flags_old = |
| 111 | __sync_fetch_and_or(&line6pcm->flags, channels); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 112 | unsigned long flags_new = flags_old | channels; |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 113 | unsigned long flags_final = flags_old; |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 114 | int err = 0; |
Johannes Thumshirn | 82a74d4 | 2012-05-05 16:31:52 +0200 | [diff] [blame] | 115 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 116 | line6pcm->prev_fbuf = NULL; |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 117 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 118 | if (test_flags(flags_old, flags_new, LINE6_BITS_CAPTURE_BUFFER)) { |
Stefan Hajnoczi | 928f25e | 2012-11-11 13:24:41 +0100 | [diff] [blame] | 119 | /* Invoked multiple times in a row so allocate once only */ |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 120 | if (!line6pcm->buffer_in) { |
| 121 | line6pcm->buffer_in = |
| 122 | kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS * |
| 123 | line6pcm->max_packet_size, GFP_KERNEL); |
| 124 | |
| 125 | if (!line6pcm->buffer_in) { |
| 126 | dev_err(line6pcm->line6->ifcdev, |
| 127 | "cannot malloc capture buffer\n"); |
| 128 | err = -ENOMEM; |
| 129 | goto pcm_acquire_error; |
| 130 | } |
| 131 | |
| 132 | flags_final |= channels & LINE6_BITS_CAPTURE_BUFFER; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | if (test_flags(flags_old, flags_new, LINE6_BITS_CAPTURE_STREAM)) { |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 137 | /* |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 138 | Waiting for completion of active URBs in the stop handler is |
| 139 | a bug, we therefore report an error if capturing is restarted |
| 140 | too soon. |
| 141 | */ |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 142 | if (line6pcm->active_urb_in | line6pcm->unlink_urb_in) { |
| 143 | dev_err(line6pcm->line6->ifcdev, "Device not yet ready\n"); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 144 | return -EBUSY; |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 145 | } |
| 146 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 147 | line6pcm->count_in = 0; |
| 148 | line6pcm->prev_fsize = 0; |
| 149 | err = line6_submit_audio_in_all_urbs(line6pcm); |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 150 | |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 151 | if (err < 0) |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 152 | goto pcm_acquire_error; |
| 153 | |
| 154 | flags_final |= channels & LINE6_BITS_CAPTURE_STREAM; |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 155 | } |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 156 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 157 | if (test_flags(flags_old, flags_new, LINE6_BITS_PLAYBACK_BUFFER)) { |
Stefan Hajnoczi | 928f25e | 2012-11-11 13:24:41 +0100 | [diff] [blame] | 158 | /* Invoked multiple times in a row so allocate once only */ |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 159 | if (!line6pcm->buffer_out) { |
| 160 | line6pcm->buffer_out = |
| 161 | kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS * |
| 162 | line6pcm->max_packet_size, GFP_KERNEL); |
| 163 | |
| 164 | if (!line6pcm->buffer_out) { |
| 165 | dev_err(line6pcm->line6->ifcdev, |
| 166 | "cannot malloc playback buffer\n"); |
| 167 | err = -ENOMEM; |
| 168 | goto pcm_acquire_error; |
| 169 | } |
| 170 | |
| 171 | flags_final |= channels & LINE6_BITS_PLAYBACK_BUFFER; |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | if (test_flags(flags_old, flags_new, LINE6_BITS_PLAYBACK_STREAM)) { |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 176 | /* |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 177 | See comment above regarding PCM restart. |
| 178 | */ |
| 179 | if (line6pcm->active_urb_out | line6pcm->unlink_urb_out) { |
| 180 | dev_err(line6pcm->line6->ifcdev, "Device not yet ready\n"); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 181 | return -EBUSY; |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 182 | } |
| 183 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 184 | line6pcm->count_out = 0; |
| 185 | err = line6_submit_audio_out_all_urbs(line6pcm); |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 186 | |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 187 | if (err < 0) |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 188 | goto pcm_acquire_error; |
| 189 | |
| 190 | flags_final |= channels & LINE6_BITS_PLAYBACK_STREAM; |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 191 | } |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 192 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 193 | return 0; |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 194 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 195 | pcm_acquire_error: |
| 196 | /* |
| 197 | If not all requested resources/streams could be obtained, release |
| 198 | those which were successfully obtained (if any). |
| 199 | */ |
| 200 | line6_pcm_release(line6pcm, flags_final & channels); |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 201 | return err; |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 202 | } |
| 203 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 204 | int line6_pcm_release(struct snd_line6_pcm *line6pcm, int channels) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 205 | { |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 206 | unsigned long flags_old = |
| 207 | __sync_fetch_and_and(&line6pcm->flags, ~channels); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 208 | unsigned long flags_new = flags_old & ~channels; |
| 209 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 210 | if (test_flags(flags_new, flags_old, LINE6_BITS_CAPTURE_STREAM)) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 211 | line6_unlink_audio_in_urbs(line6pcm); |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 212 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 213 | if (test_flags(flags_new, flags_old, LINE6_BITS_CAPTURE_BUFFER)) { |
| 214 | line6_wait_clear_audio_in_urbs(line6pcm); |
| 215 | line6_free_capture_buffer(line6pcm); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 216 | } |
| 217 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 218 | if (test_flags(flags_new, flags_old, LINE6_BITS_PLAYBACK_STREAM)) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 219 | line6_unlink_audio_out_urbs(line6pcm); |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 220 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 221 | if (test_flags(flags_new, flags_old, LINE6_BITS_PLAYBACK_BUFFER)) { |
| 222 | line6_wait_clear_audio_out_urbs(line6pcm); |
| 223 | line6_free_playback_buffer(line6pcm); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 224 | } |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 225 | |
| 226 | return 0; |
| 227 | } |
| 228 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 229 | /* trigger callback */ |
| 230 | int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) |
| 231 | { |
| 232 | struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 233 | struct snd_pcm_substream *s; |
| 234 | int err; |
| 235 | unsigned long flags; |
| 236 | |
| 237 | spin_lock_irqsave(&line6pcm->lock_trigger, flags); |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 238 | clear_bit(LINE6_INDEX_PREPARED, &line6pcm->flags); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 239 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 240 | snd_pcm_group_for_each_entry(s, substream) { |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 241 | switch (s->stream) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 242 | case SNDRV_PCM_STREAM_PLAYBACK: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 243 | err = snd_line6_playback_trigger(line6pcm, cmd); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 244 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 245 | if (err < 0) { |
| 246 | spin_unlock_irqrestore(&line6pcm->lock_trigger, |
| 247 | flags); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 248 | return err; |
| 249 | } |
| 250 | |
| 251 | break; |
| 252 | |
| 253 | case SNDRV_PCM_STREAM_CAPTURE: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 254 | err = snd_line6_capture_trigger(line6pcm, cmd); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 255 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 256 | if (err < 0) { |
| 257 | spin_unlock_irqrestore(&line6pcm->lock_trigger, |
| 258 | flags); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 259 | return err; |
| 260 | } |
| 261 | |
| 262 | break; |
| 263 | |
| 264 | default: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 265 | dev_err(line6pcm->line6->ifcdev, |
| 266 | "Unknown stream direction %d\n", s->stream); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 267 | } |
| 268 | } |
| 269 | |
| 270 | spin_unlock_irqrestore(&line6pcm->lock_trigger, flags); |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | /* control info callback */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 275 | static int snd_line6_control_playback_info(struct snd_kcontrol *kcontrol, |
| 276 | struct snd_ctl_elem_info *uinfo) |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 277 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 278 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 279 | uinfo->count = 2; |
| 280 | uinfo->value.integer.min = 0; |
| 281 | uinfo->value.integer.max = 256; |
| 282 | return 0; |
| 283 | } |
| 284 | |
| 285 | /* control get callback */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 286 | static int snd_line6_control_playback_get(struct snd_kcontrol *kcontrol, |
| 287 | struct snd_ctl_elem_value *ucontrol) |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 288 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 289 | int i; |
| 290 | struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); |
| 291 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 292 | for (i = 2; i--;) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 293 | ucontrol->value.integer.value[i] = line6pcm->volume_playback[i]; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 294 | |
| 295 | return 0; |
| 296 | } |
| 297 | |
| 298 | /* control put callback */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 299 | static int snd_line6_control_playback_put(struct snd_kcontrol *kcontrol, |
| 300 | struct snd_ctl_elem_value *ucontrol) |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 301 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 302 | int i, changed = 0; |
| 303 | struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); |
| 304 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 305 | for (i = 2; i--;) |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 306 | if (line6pcm->volume_playback[i] != |
| 307 | ucontrol->value.integer.value[i]) { |
| 308 | line6pcm->volume_playback[i] = |
| 309 | ucontrol->value.integer.value[i]; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 310 | changed = 1; |
| 311 | } |
| 312 | |
| 313 | return changed; |
| 314 | } |
| 315 | |
| 316 | /* control definition */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 317 | static struct snd_kcontrol_new line6_control_playback = { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 318 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 319 | .name = "PCM Playback Volume", |
| 320 | .index = 0, |
| 321 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 322 | .info = snd_line6_control_playback_info, |
| 323 | .get = snd_line6_control_playback_get, |
| 324 | .put = snd_line6_control_playback_put |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 325 | }; |
| 326 | |
| 327 | /* |
| 328 | Cleanup the PCM device. |
| 329 | */ |
| 330 | static void line6_cleanup_pcm(struct snd_pcm *pcm) |
| 331 | { |
| 332 | int i; |
| 333 | struct snd_line6_pcm *line6pcm = snd_pcm_chip(pcm); |
| 334 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 335 | #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE |
| 336 | device_remove_file(line6pcm->line6->ifcdev, &dev_attr_impulse_volume); |
| 337 | device_remove_file(line6pcm->line6->ifcdev, &dev_attr_impulse_period); |
| 338 | #endif |
| 339 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 340 | for (i = LINE6_ISO_BUFFERS; i--;) { |
| 341 | if (line6pcm->urb_audio_out[i]) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 342 | usb_kill_urb(line6pcm->urb_audio_out[i]); |
| 343 | usb_free_urb(line6pcm->urb_audio_out[i]); |
| 344 | } |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 345 | if (line6pcm->urb_audio_in[i]) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 346 | usb_kill_urb(line6pcm->urb_audio_in[i]); |
| 347 | usb_free_urb(line6pcm->urb_audio_in[i]); |
| 348 | } |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | /* create a PCM device */ |
| 353 | static int snd_line6_new_pcm(struct snd_line6_pcm *line6pcm) |
| 354 | { |
| 355 | struct snd_pcm *pcm; |
| 356 | int err; |
| 357 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 358 | err = snd_pcm_new(line6pcm->line6->card, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 359 | (char *)line6pcm->line6->properties->name, |
| 360 | 0, 1, 1, &pcm); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 361 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 362 | return err; |
| 363 | |
| 364 | pcm->private_data = line6pcm; |
| 365 | pcm->private_free = line6_cleanup_pcm; |
| 366 | line6pcm->pcm = pcm; |
| 367 | strcpy(pcm->name, line6pcm->line6->properties->name); |
| 368 | |
| 369 | /* set operators */ |
Shawn Bohrer | afb9091 | 2009-11-15 22:17:57 -0600 | [diff] [blame] | 370 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, |
| 371 | &snd_line6_playback_ops); |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 372 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_line6_capture_ops); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 373 | |
| 374 | /* pre-allocation of buffers */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 375 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 376 | snd_dma_continuous_data |
| 377 | (GFP_KERNEL), 64 * 1024, |
| 378 | 128 * 1024); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 379 | |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | /* PCM device destructor */ |
| 384 | static int snd_line6_pcm_free(struct snd_device *device) |
| 385 | { |
| 386 | return 0; |
| 387 | } |
| 388 | |
| 389 | /* |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 390 | Stop substream if still running. |
| 391 | */ |
| 392 | static void pcm_disconnect_substream(struct snd_pcm_substream *substream) |
| 393 | { |
Greg Kroah-Hartman | 027360c | 2010-09-21 16:58:00 -0700 | [diff] [blame] | 394 | if (substream->runtime && snd_pcm_running(substream)) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 395 | snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | /* |
| 399 | Stop PCM stream. |
| 400 | */ |
| 401 | void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm) |
| 402 | { |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 403 | pcm_disconnect_substream(get_substream |
| 404 | (line6pcm, SNDRV_PCM_STREAM_CAPTURE)); |
| 405 | pcm_disconnect_substream(get_substream |
| 406 | (line6pcm, SNDRV_PCM_STREAM_PLAYBACK)); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 407 | line6_unlink_wait_clear_audio_out_urbs(line6pcm); |
| 408 | line6_unlink_wait_clear_audio_in_urbs(line6pcm); |
| 409 | } |
| 410 | |
| 411 | /* |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 412 | Create and register the PCM device and mixer entries. |
| 413 | Create URBs for playback and capture. |
| 414 | */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 415 | int line6_init_pcm(struct usb_line6 *line6, |
| 416 | struct line6_pcm_properties *properties) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 417 | { |
| 418 | static struct snd_device_ops pcm_ops = { |
| 419 | .dev_free = snd_line6_pcm_free, |
| 420 | }; |
| 421 | |
| 422 | int err; |
| 423 | int ep_read = 0, ep_write = 0; |
| 424 | struct snd_line6_pcm *line6pcm; |
| 425 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 426 | if (!(line6->properties->capabilities & LINE6_BIT_PCM)) |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 427 | return 0; /* skip PCM initialization and report success */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 428 | |
| 429 | /* initialize PCM subsystem based on product id: */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 430 | switch (line6->product) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 431 | case LINE6_DEVID_BASSPODXT: |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 432 | case LINE6_DEVID_BASSPODXTLIVE: |
| 433 | case LINE6_DEVID_BASSPODXTPRO: |
| 434 | case LINE6_DEVID_PODXT: |
| 435 | case LINE6_DEVID_PODXTLIVE: |
| 436 | case LINE6_DEVID_PODXTPRO: |
Stefan Hajnoczi | 16dc104 | 2011-11-23 08:20:42 +0000 | [diff] [blame] | 437 | case LINE6_DEVID_PODHD300: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 438 | ep_read = 0x82; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 439 | ep_write = 0x01; |
| 440 | break; |
| 441 | |
Markus Grabner | 4c6fb5f | 2011-12-05 23:51:53 +0100 | [diff] [blame] | 442 | case LINE6_DEVID_PODHD500: |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 443 | case LINE6_DEVID_PODX3: |
| 444 | case LINE6_DEVID_PODX3LIVE: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 445 | ep_read = 0x86; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 446 | ep_write = 0x02; |
| 447 | break; |
| 448 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 449 | case LINE6_DEVID_POCKETPOD: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 450 | ep_read = 0x82; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 451 | ep_write = 0x02; |
| 452 | break; |
| 453 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 454 | case LINE6_DEVID_GUITARPORT: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 455 | case LINE6_DEVID_PODSTUDIO_GX: |
| 456 | case LINE6_DEVID_PODSTUDIO_UX1: |
| 457 | case LINE6_DEVID_PODSTUDIO_UX2: |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 458 | case LINE6_DEVID_TONEPORT_GX: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 459 | case LINE6_DEVID_TONEPORT_UX1: |
| 460 | case LINE6_DEVID_TONEPORT_UX2: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 461 | ep_read = 0x82; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 462 | ep_write = 0x01; |
| 463 | break; |
| 464 | |
Laurent Navet | a376290 | 2012-11-30 11:57:32 +0100 | [diff] [blame^] | 465 | /* this is for interface_number == 1: |
| 466 | case LINE6_DEVID_TONEPORT_UX2: |
| 467 | case LINE6_DEVID_PODSTUDIO_UX2: |
| 468 | ep_read = 0x87; |
| 469 | ep_write = 0x00; |
| 470 | break; */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 471 | |
| 472 | default: |
| 473 | MISSING_CASE; |
| 474 | } |
| 475 | |
| 476 | line6pcm = kzalloc(sizeof(struct snd_line6_pcm), GFP_KERNEL); |
| 477 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 478 | if (line6pcm == NULL) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 479 | return -ENOMEM; |
| 480 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 481 | line6pcm->volume_playback[0] = line6pcm->volume_playback[1] = 255; |
| 482 | line6pcm->volume_monitor = 255; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 483 | line6pcm->line6 = line6; |
| 484 | line6pcm->ep_audio_read = ep_read; |
| 485 | line6pcm->ep_audio_write = ep_write; |
Stefan Hajnoczi | 3b08db3 | 2011-11-23 08:20:44 +0000 | [diff] [blame] | 486 | |
| 487 | /* Read and write buffers are sized identically, so choose minimum */ |
| 488 | line6pcm->max_packet_size = min( |
| 489 | usb_maxpacket(line6->usbdev, |
| 490 | usb_rcvisocpipe(line6->usbdev, ep_read), 0), |
| 491 | usb_maxpacket(line6->usbdev, |
| 492 | usb_sndisocpipe(line6->usbdev, ep_write), 1)); |
| 493 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 494 | line6pcm->properties = properties; |
| 495 | line6->line6pcm = line6pcm; |
| 496 | |
| 497 | /* PCM device: */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 498 | err = snd_device_new(line6->card, SNDRV_DEV_PCM, line6, &pcm_ops); |
| 499 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 500 | return err; |
| 501 | |
| 502 | snd_card_set_dev(line6->card, line6->ifcdev); |
| 503 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 504 | err = snd_line6_new_pcm(line6pcm); |
| 505 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 506 | return err; |
| 507 | |
| 508 | spin_lock_init(&line6pcm->lock_audio_out); |
| 509 | spin_lock_init(&line6pcm->lock_audio_in); |
| 510 | spin_lock_init(&line6pcm->lock_trigger); |
| 511 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 512 | err = line6_create_audio_out_urbs(line6pcm); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 513 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 514 | return err; |
| 515 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 516 | err = line6_create_audio_in_urbs(line6pcm); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 517 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 518 | return err; |
| 519 | |
| 520 | /* mixer: */ |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 521 | err = |
| 522 | snd_ctl_add(line6->card, |
| 523 | snd_ctl_new1(&line6_control_playback, line6pcm)); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 524 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 525 | return err; |
| 526 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 527 | #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE |
| 528 | /* impulse response test: */ |
| 529 | err = device_create_file(line6->ifcdev, &dev_attr_impulse_volume); |
| 530 | if (err < 0) |
| 531 | return err; |
| 532 | |
| 533 | err = device_create_file(line6->ifcdev, &dev_attr_impulse_period); |
| 534 | if (err < 0) |
| 535 | return err; |
| 536 | |
| 537 | line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; |
| 538 | #endif |
| 539 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 540 | return 0; |
| 541 | } |
| 542 | |
| 543 | /* prepare pcm callback */ |
| 544 | int snd_line6_prepare(struct snd_pcm_substream *substream) |
| 545 | { |
| 546 | struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); |
| 547 | |
Stefan Hajnoczi | 665f3f5 | 2011-12-10 02:12:31 +0100 | [diff] [blame] | 548 | switch (substream->stream) { |
| 549 | case SNDRV_PCM_STREAM_PLAYBACK: |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 550 | if ((line6pcm->flags & LINE6_BITS_PLAYBACK_STREAM) == 0) |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 551 | line6_unlink_wait_clear_audio_out_urbs(line6pcm); |
| 552 | |
Stefan Hajnoczi | 665f3f5 | 2011-12-10 02:12:31 +0100 | [diff] [blame] | 553 | break; |
| 554 | |
| 555 | case SNDRV_PCM_STREAM_CAPTURE: |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 556 | if ((line6pcm->flags & LINE6_BITS_CAPTURE_STREAM) == 0) |
Markus Grabner | 6b02a17e | 2011-12-10 02:12:32 +0100 | [diff] [blame] | 557 | line6_unlink_wait_clear_audio_in_urbs(line6pcm); |
| 558 | |
Stefan Hajnoczi | 665f3f5 | 2011-12-10 02:12:31 +0100 | [diff] [blame] | 559 | break; |
| 560 | |
| 561 | default: |
| 562 | MISSING_CASE; |
| 563 | } |
| 564 | |
Markus Grabner | 0ca5488 | 2012-01-20 00:09:09 +0100 | [diff] [blame] | 565 | if (!test_and_set_bit(LINE6_INDEX_PREPARED, &line6pcm->flags)) { |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 566 | line6pcm->count_out = 0; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 567 | line6pcm->pos_out = 0; |
| 568 | line6pcm->pos_out_done = 0; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 569 | line6pcm->bytes_out = 0; |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 570 | line6pcm->count_in = 0; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 571 | line6pcm->pos_in_done = 0; |
| 572 | line6pcm->bytes_in = 0; |
| 573 | } |
| 574 | |
| 575 | return 0; |
| 576 | } |