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