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 | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 55 | line6_pcm_start(line6pcm, MASK_PCM_IMPULSE); |
| 56 | else |
| 57 | line6_pcm_stop(line6pcm, MASK_PCM_IMPULSE); |
| 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 | |
| 89 | int line6_pcm_start(struct snd_line6_pcm *line6pcm, int channels) |
| 90 | { |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 91 | unsigned long flags_old = |
| 92 | __sync_fetch_and_or(&line6pcm->flags, channels); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 93 | unsigned long flags_new = flags_old | channels; |
| 94 | int err = 0; |
| 95 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 96 | line6pcm->prev_fbuf = NULL; |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 97 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 98 | if (((flags_old & MASK_CAPTURE) == 0) && |
| 99 | ((flags_new & MASK_CAPTURE) != 0)) { |
| 100 | /* |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 101 | Waiting for completion of active URBs in the stop handler is |
| 102 | a bug, we therefore report an error if capturing is restarted |
| 103 | too soon. |
| 104 | */ |
| 105 | if (line6pcm->active_urb_in | line6pcm->unlink_urb_in) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 106 | return -EBUSY; |
| 107 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 108 | line6pcm->count_in = 0; |
| 109 | line6pcm->prev_fsize = 0; |
| 110 | err = line6_submit_audio_in_all_urbs(line6pcm); |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 111 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 112 | if (err < 0) { |
| 113 | __sync_fetch_and_and(&line6pcm->flags, ~channels); |
| 114 | return err; |
| 115 | } |
| 116 | } |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 117 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 118 | if (((flags_old & MASK_PLAYBACK) == 0) && |
| 119 | ((flags_new & MASK_PLAYBACK) != 0)) { |
| 120 | /* |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 121 | See comment above regarding PCM restart. |
| 122 | */ |
| 123 | if (line6pcm->active_urb_out | line6pcm->unlink_urb_out) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 124 | return -EBUSY; |
| 125 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 126 | line6pcm->count_out = 0; |
| 127 | err = line6_submit_audio_out_all_urbs(line6pcm); |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 128 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 129 | if (err < 0) { |
| 130 | __sync_fetch_and_and(&line6pcm->flags, ~channels); |
| 131 | return err; |
| 132 | } |
| 133 | } |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 134 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 135 | return 0; |
| 136 | } |
| 137 | |
| 138 | int line6_pcm_stop(struct snd_line6_pcm *line6pcm, int channels) |
| 139 | { |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 140 | unsigned long flags_old = |
| 141 | __sync_fetch_and_and(&line6pcm->flags, ~channels); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 142 | unsigned long flags_new = flags_old & ~channels; |
| 143 | |
| 144 | if (((flags_old & MASK_CAPTURE) != 0) && |
| 145 | ((flags_new & MASK_CAPTURE) == 0)) { |
| 146 | line6_unlink_audio_in_urbs(line6pcm); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 147 | } |
| 148 | |
| 149 | if (((flags_old & MASK_PLAYBACK) != 0) && |
| 150 | ((flags_new & MASK_PLAYBACK) == 0)) { |
| 151 | line6_unlink_audio_out_urbs(line6pcm); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 152 | } |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 157 | /* trigger callback */ |
| 158 | int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) |
| 159 | { |
| 160 | struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 161 | struct snd_pcm_substream *s; |
| 162 | int err; |
| 163 | unsigned long flags; |
| 164 | |
| 165 | spin_lock_irqsave(&line6pcm->lock_trigger, flags); |
| 166 | clear_bit(BIT_PREPARED, &line6pcm->flags); |
| 167 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 168 | snd_pcm_group_for_each_entry(s, substream) { |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 169 | switch (s->stream) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 170 | case SNDRV_PCM_STREAM_PLAYBACK: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 171 | err = snd_line6_playback_trigger(line6pcm, cmd); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 172 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 173 | if (err < 0) { |
| 174 | spin_unlock_irqrestore(&line6pcm->lock_trigger, |
| 175 | flags); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 176 | return err; |
| 177 | } |
| 178 | |
| 179 | break; |
| 180 | |
| 181 | case SNDRV_PCM_STREAM_CAPTURE: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 182 | err = snd_line6_capture_trigger(line6pcm, cmd); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 183 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 184 | if (err < 0) { |
| 185 | spin_unlock_irqrestore(&line6pcm->lock_trigger, |
| 186 | flags); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 187 | return err; |
| 188 | } |
| 189 | |
| 190 | break; |
| 191 | |
| 192 | default: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 193 | dev_err(line6pcm->line6->ifcdev, |
| 194 | "Unknown stream direction %d\n", s->stream); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 195 | } |
| 196 | } |
| 197 | |
| 198 | spin_unlock_irqrestore(&line6pcm->lock_trigger, flags); |
| 199 | return 0; |
| 200 | } |
| 201 | |
| 202 | /* control info callback */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 203 | static int snd_line6_control_playback_info(struct snd_kcontrol *kcontrol, |
| 204 | struct snd_ctl_elem_info *uinfo) |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 205 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 206 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 207 | uinfo->count = 2; |
| 208 | uinfo->value.integer.min = 0; |
| 209 | uinfo->value.integer.max = 256; |
| 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | /* control get callback */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 214 | static int snd_line6_control_playback_get(struct snd_kcontrol *kcontrol, |
| 215 | struct snd_ctl_elem_value *ucontrol) |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 216 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 217 | int i; |
| 218 | struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); |
| 219 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 220 | for (i = 2; i--;) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 221 | ucontrol->value.integer.value[i] = line6pcm->volume_playback[i]; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 222 | |
| 223 | return 0; |
| 224 | } |
| 225 | |
| 226 | /* control put callback */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 227 | static int snd_line6_control_playback_put(struct snd_kcontrol *kcontrol, |
| 228 | struct snd_ctl_elem_value *ucontrol) |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 229 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 230 | int i, changed = 0; |
| 231 | struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); |
| 232 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 233 | for (i = 2; i--;) |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 234 | if (line6pcm->volume_playback[i] != |
| 235 | ucontrol->value.integer.value[i]) { |
| 236 | line6pcm->volume_playback[i] = |
| 237 | ucontrol->value.integer.value[i]; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 238 | changed = 1; |
| 239 | } |
| 240 | |
| 241 | return changed; |
| 242 | } |
| 243 | |
| 244 | /* control definition */ |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 245 | static struct snd_kcontrol_new line6_control_playback = { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 246 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 247 | .name = "PCM Playback Volume", |
| 248 | .index = 0, |
| 249 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 250 | .info = snd_line6_control_playback_info, |
| 251 | .get = snd_line6_control_playback_get, |
| 252 | .put = snd_line6_control_playback_put |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 253 | }; |
| 254 | |
| 255 | /* |
| 256 | Cleanup the PCM device. |
| 257 | */ |
| 258 | static void line6_cleanup_pcm(struct snd_pcm *pcm) |
| 259 | { |
| 260 | int i; |
| 261 | struct snd_line6_pcm *line6pcm = snd_pcm_chip(pcm); |
| 262 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 263 | #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE |
| 264 | device_remove_file(line6pcm->line6->ifcdev, &dev_attr_impulse_volume); |
| 265 | device_remove_file(line6pcm->line6->ifcdev, &dev_attr_impulse_period); |
| 266 | #endif |
| 267 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 268 | for (i = LINE6_ISO_BUFFERS; i--;) { |
| 269 | if (line6pcm->urb_audio_out[i]) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 270 | usb_kill_urb(line6pcm->urb_audio_out[i]); |
| 271 | usb_free_urb(line6pcm->urb_audio_out[i]); |
| 272 | } |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 273 | if (line6pcm->urb_audio_in[i]) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 274 | usb_kill_urb(line6pcm->urb_audio_in[i]); |
| 275 | usb_free_urb(line6pcm->urb_audio_in[i]); |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | /* create a PCM device */ |
| 281 | static int snd_line6_new_pcm(struct snd_line6_pcm *line6pcm) |
| 282 | { |
| 283 | struct snd_pcm *pcm; |
| 284 | int err; |
| 285 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 286 | err = snd_pcm_new(line6pcm->line6->card, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 287 | (char *)line6pcm->line6->properties->name, |
| 288 | 0, 1, 1, &pcm); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 289 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 290 | return err; |
| 291 | |
| 292 | pcm->private_data = line6pcm; |
| 293 | pcm->private_free = line6_cleanup_pcm; |
| 294 | line6pcm->pcm = pcm; |
| 295 | strcpy(pcm->name, line6pcm->line6->properties->name); |
| 296 | |
| 297 | /* set operators */ |
Shawn Bohrer | afb9091 | 2009-11-15 22:17:57 -0600 | [diff] [blame] | 298 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, |
| 299 | &snd_line6_playback_ops); |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 300 | 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] | 301 | |
| 302 | /* pre-allocation of buffers */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 303 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 304 | snd_dma_continuous_data |
| 305 | (GFP_KERNEL), 64 * 1024, |
| 306 | 128 * 1024); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 307 | |
| 308 | return 0; |
| 309 | } |
| 310 | |
| 311 | /* PCM device destructor */ |
| 312 | static int snd_line6_pcm_free(struct snd_device *device) |
| 313 | { |
| 314 | return 0; |
| 315 | } |
| 316 | |
| 317 | /* |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 318 | Stop substream if still running. |
| 319 | */ |
| 320 | static void pcm_disconnect_substream(struct snd_pcm_substream *substream) |
| 321 | { |
Greg Kroah-Hartman | 027360c | 2010-09-21 16:58:00 -0700 | [diff] [blame] | 322 | if (substream->runtime && snd_pcm_running(substream)) |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 323 | snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 324 | } |
| 325 | |
| 326 | /* |
| 327 | Stop PCM stream. |
| 328 | */ |
| 329 | void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm) |
| 330 | { |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 331 | pcm_disconnect_substream(get_substream |
| 332 | (line6pcm, SNDRV_PCM_STREAM_CAPTURE)); |
| 333 | pcm_disconnect_substream(get_substream |
| 334 | (line6pcm, SNDRV_PCM_STREAM_PLAYBACK)); |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 335 | line6_unlink_wait_clear_audio_out_urbs(line6pcm); |
| 336 | line6_unlink_wait_clear_audio_in_urbs(line6pcm); |
| 337 | } |
| 338 | |
| 339 | /* |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 340 | Create and register the PCM device and mixer entries. |
| 341 | Create URBs for playback and capture. |
| 342 | */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 343 | int line6_init_pcm(struct usb_line6 *line6, |
| 344 | struct line6_pcm_properties *properties) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 345 | { |
| 346 | static struct snd_device_ops pcm_ops = { |
| 347 | .dev_free = snd_line6_pcm_free, |
| 348 | }; |
| 349 | |
| 350 | int err; |
| 351 | int ep_read = 0, ep_write = 0; |
| 352 | struct snd_line6_pcm *line6pcm; |
| 353 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 354 | if (!(line6->properties->capabilities & LINE6_BIT_PCM)) |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 355 | return 0; /* skip PCM initialization and report success */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 356 | |
| 357 | /* initialize PCM subsystem based on product id: */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 358 | switch (line6->product) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 359 | case LINE6_DEVID_BASSPODXT: |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 360 | case LINE6_DEVID_BASSPODXTLIVE: |
| 361 | case LINE6_DEVID_BASSPODXTPRO: |
| 362 | case LINE6_DEVID_PODXT: |
| 363 | case LINE6_DEVID_PODXTLIVE: |
| 364 | case LINE6_DEVID_PODXTPRO: |
Stefan Hajnoczi | 16dc104 | 2011-11-23 08:20:42 +0000 | [diff] [blame] | 365 | case LINE6_DEVID_PODHD300: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 366 | ep_read = 0x82; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 367 | ep_write = 0x01; |
| 368 | break; |
| 369 | |
Markus Grabner | 4c6fb5f | 2011-12-05 23:51:53 +0100 | [diff] [blame] | 370 | case LINE6_DEVID_PODHD500: |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 371 | case LINE6_DEVID_PODX3: |
| 372 | case LINE6_DEVID_PODX3LIVE: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 373 | ep_read = 0x86; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 374 | ep_write = 0x02; |
| 375 | break; |
| 376 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 377 | case LINE6_DEVID_POCKETPOD: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 378 | ep_read = 0x82; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 379 | ep_write = 0x02; |
| 380 | break; |
| 381 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 382 | case LINE6_DEVID_GUITARPORT: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 383 | case LINE6_DEVID_PODSTUDIO_GX: |
| 384 | case LINE6_DEVID_PODSTUDIO_UX1: |
| 385 | case LINE6_DEVID_PODSTUDIO_UX2: |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 386 | case LINE6_DEVID_TONEPORT_GX: |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 387 | case LINE6_DEVID_TONEPORT_UX1: |
| 388 | case LINE6_DEVID_TONEPORT_UX2: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 389 | ep_read = 0x82; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 390 | ep_write = 0x01; |
| 391 | break; |
| 392 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 393 | /* this is for interface_number == 1: |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 394 | case LINE6_DEVID_TONEPORT_UX2: |
| 395 | case LINE6_DEVID_PODSTUDIO_UX2: |
| 396 | ep_read = 0x87; |
| 397 | ep_write = 0x00; |
| 398 | break; |
| 399 | */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 400 | |
| 401 | default: |
| 402 | MISSING_CASE; |
| 403 | } |
| 404 | |
| 405 | line6pcm = kzalloc(sizeof(struct snd_line6_pcm), GFP_KERNEL); |
| 406 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 407 | if (line6pcm == NULL) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 408 | return -ENOMEM; |
| 409 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 410 | line6pcm->volume_playback[0] = line6pcm->volume_playback[1] = 255; |
| 411 | line6pcm->volume_monitor = 255; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 412 | line6pcm->line6 = line6; |
| 413 | line6pcm->ep_audio_read = ep_read; |
| 414 | line6pcm->ep_audio_write = ep_write; |
Stefan Hajnoczi | 3b08db3 | 2011-11-23 08:20:44 +0000 | [diff] [blame] | 415 | |
| 416 | /* Read and write buffers are sized identically, so choose minimum */ |
| 417 | line6pcm->max_packet_size = min( |
| 418 | usb_maxpacket(line6->usbdev, |
| 419 | usb_rcvisocpipe(line6->usbdev, ep_read), 0), |
| 420 | usb_maxpacket(line6->usbdev, |
| 421 | usb_sndisocpipe(line6->usbdev, ep_write), 1)); |
| 422 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 423 | line6pcm->properties = properties; |
| 424 | line6->line6pcm = line6pcm; |
| 425 | |
| 426 | /* PCM device: */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 427 | err = snd_device_new(line6->card, SNDRV_DEV_PCM, line6, &pcm_ops); |
| 428 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 429 | return err; |
| 430 | |
| 431 | snd_card_set_dev(line6->card, line6->ifcdev); |
| 432 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 433 | err = snd_line6_new_pcm(line6pcm); |
| 434 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 435 | return err; |
| 436 | |
| 437 | spin_lock_init(&line6pcm->lock_audio_out); |
| 438 | spin_lock_init(&line6pcm->lock_audio_in); |
| 439 | spin_lock_init(&line6pcm->lock_trigger); |
| 440 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 441 | err = line6_create_audio_out_urbs(line6pcm); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 442 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 443 | return err; |
| 444 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 445 | err = line6_create_audio_in_urbs(line6pcm); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 446 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 447 | return err; |
| 448 | |
| 449 | /* mixer: */ |
Markus Grabner | e1a164d | 2010-08-23 01:08:25 +0200 | [diff] [blame] | 450 | err = |
| 451 | snd_ctl_add(line6->card, |
| 452 | snd_ctl_new1(&line6_control_playback, line6pcm)); |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 453 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 454 | return err; |
| 455 | |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 456 | #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE |
| 457 | /* impulse response test: */ |
| 458 | err = device_create_file(line6->ifcdev, &dev_attr_impulse_volume); |
| 459 | if (err < 0) |
| 460 | return err; |
| 461 | |
| 462 | err = device_create_file(line6->ifcdev, &dev_attr_impulse_period); |
| 463 | if (err < 0) |
| 464 | return err; |
| 465 | |
| 466 | line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; |
| 467 | #endif |
| 468 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 469 | return 0; |
| 470 | } |
| 471 | |
| 472 | /* prepare pcm callback */ |
| 473 | int snd_line6_prepare(struct snd_pcm_substream *substream) |
| 474 | { |
| 475 | struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); |
| 476 | |
Stefan Hajnoczi | 665f3f5 | 2011-12-10 02:12:31 +0100 | [diff] [blame^] | 477 | switch (substream->stream) { |
| 478 | case SNDRV_PCM_STREAM_PLAYBACK: |
| 479 | line6_unlink_wait_clear_audio_out_urbs(line6pcm); |
| 480 | break; |
| 481 | |
| 482 | case SNDRV_PCM_STREAM_CAPTURE: |
| 483 | line6_unlink_wait_clear_audio_in_urbs(line6pcm); |
| 484 | break; |
| 485 | |
| 486 | default: |
| 487 | MISSING_CASE; |
| 488 | } |
| 489 | |
| 490 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 491 | if (!test_and_set_bit(BIT_PREPARED, &line6pcm->flags)) { |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 492 | line6pcm->count_out = 0; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 493 | line6pcm->pos_out = 0; |
| 494 | line6pcm->pos_out_done = 0; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 495 | line6pcm->bytes_out = 0; |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 496 | line6pcm->count_in = 0; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 497 | line6pcm->pos_in_done = 0; |
| 498 | line6pcm->bytes_in = 0; |
| 499 | } |
| 500 | |
| 501 | return 0; |
| 502 | } |