Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Line6 Linux USB driver - 0.8.0 |
| 3 | * |
| 4 | * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at) |
| 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 | |
| 12 | #include "driver.h" |
| 13 | |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 14 | #include <linux/slab.h> |
| 15 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 16 | #include <sound/core.h> |
| 17 | #include <sound/control.h> |
| 18 | #include <sound/pcm.h> |
| 19 | #include <sound/pcm_params.h> |
| 20 | |
| 21 | #include "audio.h" |
| 22 | #include "capture.h" |
| 23 | #include "playback.h" |
| 24 | #include "pod.h" |
| 25 | |
| 26 | |
| 27 | /* trigger callback */ |
| 28 | int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) |
| 29 | { |
| 30 | struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 31 | struct snd_pcm_substream *s; |
| 32 | int err; |
| 33 | unsigned long flags; |
| 34 | |
| 35 | spin_lock_irqsave(&line6pcm->lock_trigger, flags); |
| 36 | clear_bit(BIT_PREPARED, &line6pcm->flags); |
| 37 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 38 | snd_pcm_group_for_each_entry(s, substream) { |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 39 | switch (s->stream) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 40 | case SNDRV_PCM_STREAM_PLAYBACK: |
| 41 | err = snd_line6_playback_trigger(s, cmd); |
| 42 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 43 | if (err < 0) { |
| 44 | spin_unlock_irqrestore(&line6pcm->lock_trigger, |
| 45 | flags); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 46 | return err; |
| 47 | } |
| 48 | |
| 49 | break; |
| 50 | |
| 51 | case SNDRV_PCM_STREAM_CAPTURE: |
| 52 | err = snd_line6_capture_trigger(s, cmd); |
| 53 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 54 | if (err < 0) { |
| 55 | spin_unlock_irqrestore(&line6pcm->lock_trigger, |
| 56 | flags); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 57 | return err; |
| 58 | } |
| 59 | |
| 60 | break; |
| 61 | |
| 62 | default: |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 63 | dev_err(s2m(substream), "Unknown stream direction %d\n", |
| 64 | s->stream); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 65 | } |
| 66 | } |
| 67 | |
| 68 | spin_unlock_irqrestore(&line6pcm->lock_trigger, flags); |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | /* control info callback */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 73 | static int snd_line6_control_info(struct snd_kcontrol *kcontrol, |
| 74 | struct snd_ctl_elem_info *uinfo) |
| 75 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 76 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 77 | uinfo->count = 2; |
| 78 | uinfo->value.integer.min = 0; |
| 79 | uinfo->value.integer.max = 256; |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | /* control get callback */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 84 | static int snd_line6_control_get(struct snd_kcontrol *kcontrol, |
| 85 | struct snd_ctl_elem_value *ucontrol) |
| 86 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 87 | int i; |
| 88 | struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); |
| 89 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 90 | for (i = 2; i--;) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 91 | ucontrol->value.integer.value[i] = line6pcm->volume[i]; |
| 92 | |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | /* control put callback */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 97 | static int snd_line6_control_put(struct snd_kcontrol *kcontrol, |
| 98 | struct snd_ctl_elem_value *ucontrol) |
| 99 | { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 100 | int i, changed = 0; |
| 101 | struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); |
| 102 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 103 | for (i = 2; i--;) |
| 104 | if (line6pcm->volume[i] != ucontrol->value.integer.value[i]) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 105 | line6pcm->volume[i] = ucontrol->value.integer.value[i]; |
| 106 | changed = 1; |
| 107 | } |
| 108 | |
| 109 | return changed; |
| 110 | } |
| 111 | |
| 112 | /* control definition */ |
| 113 | static struct snd_kcontrol_new line6_control = { |
| 114 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 115 | .name = "PCM Playback Volume", |
| 116 | .index = 0, |
| 117 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
| 118 | .info = snd_line6_control_info, |
| 119 | .get = snd_line6_control_get, |
| 120 | .put = snd_line6_control_put |
| 121 | }; |
| 122 | |
| 123 | /* |
| 124 | Cleanup the PCM device. |
| 125 | */ |
| 126 | static void line6_cleanup_pcm(struct snd_pcm *pcm) |
| 127 | { |
| 128 | int i; |
| 129 | struct snd_line6_pcm *line6pcm = snd_pcm_chip(pcm); |
| 130 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 131 | for (i = LINE6_ISO_BUFFERS; i--;) { |
| 132 | if (line6pcm->urb_audio_out[i]) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 133 | usb_kill_urb(line6pcm->urb_audio_out[i]); |
| 134 | usb_free_urb(line6pcm->urb_audio_out[i]); |
| 135 | } |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 136 | if (line6pcm->urb_audio_in[i]) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 137 | usb_kill_urb(line6pcm->urb_audio_in[i]); |
| 138 | usb_free_urb(line6pcm->urb_audio_in[i]); |
| 139 | } |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | /* create a PCM device */ |
| 144 | static int snd_line6_new_pcm(struct snd_line6_pcm *line6pcm) |
| 145 | { |
| 146 | struct snd_pcm *pcm; |
| 147 | int err; |
| 148 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 149 | err = snd_pcm_new(line6pcm->line6->card, |
| 150 | (char *)line6pcm->line6->properties->name, |
| 151 | 0, 1, 1, &pcm); |
| 152 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 153 | return err; |
| 154 | |
| 155 | pcm->private_data = line6pcm; |
| 156 | pcm->private_free = line6_cleanup_pcm; |
| 157 | line6pcm->pcm = pcm; |
| 158 | strcpy(pcm->name, line6pcm->line6->properties->name); |
| 159 | |
| 160 | /* set operators */ |
Shawn Bohrer | afb9091 | 2009-11-15 22:17:57 -0600 | [diff] [blame] | 161 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, |
| 162 | &snd_line6_playback_ops); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 163 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_line6_capture_ops); |
| 164 | |
| 165 | /* pre-allocation of buffers */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 166 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, |
| 167 | snd_dma_continuous_data(GFP_KERNEL), |
| 168 | 64 * 1024, 128 * 1024); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 169 | |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | /* PCM device destructor */ |
| 174 | static int snd_line6_pcm_free(struct snd_device *device) |
| 175 | { |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | /* |
| 180 | Create and register the PCM device and mixer entries. |
| 181 | Create URBs for playback and capture. |
| 182 | */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 183 | int line6_init_pcm(struct usb_line6 *line6, |
| 184 | struct line6_pcm_properties *properties) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 185 | { |
| 186 | static struct snd_device_ops pcm_ops = { |
| 187 | .dev_free = snd_line6_pcm_free, |
| 188 | }; |
| 189 | |
| 190 | int err; |
| 191 | int ep_read = 0, ep_write = 0; |
| 192 | struct snd_line6_pcm *line6pcm; |
| 193 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 194 | if (!(line6->properties->capabilities & LINE6_BIT_PCM)) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 195 | return 0; /* skip PCM initialization and report success */ |
| 196 | |
| 197 | /* initialize PCM subsystem based on product id: */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 198 | switch (line6->product) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 199 | case LINE6_DEVID_BASSPODXT: |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 200 | case LINE6_DEVID_BASSPODXTLIVE: |
| 201 | case LINE6_DEVID_BASSPODXTPRO: |
| 202 | case LINE6_DEVID_PODXT: |
| 203 | case LINE6_DEVID_PODXTLIVE: |
| 204 | case LINE6_DEVID_PODXTPRO: |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 205 | ep_read = 0x82; |
| 206 | ep_write = 0x01; |
| 207 | break; |
| 208 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 209 | case LINE6_DEVID_PODX3: |
| 210 | case LINE6_DEVID_PODX3LIVE: |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 211 | ep_read = 0x86; |
| 212 | ep_write = 0x02; |
| 213 | break; |
| 214 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 215 | case LINE6_DEVID_POCKETPOD: |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 216 | ep_read = 0x82; |
| 217 | ep_write = 0x02; |
| 218 | break; |
| 219 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 220 | case LINE6_DEVID_GUITARPORT: |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 221 | case LINE6_DEVID_TONEPORT_GX: |
| 222 | ep_read = 0x82; |
| 223 | ep_write = 0x01; |
| 224 | break; |
| 225 | |
| 226 | case LINE6_DEVID_TONEPORT_UX1: |
| 227 | ep_read = 0x00; |
| 228 | ep_write = 0x00; |
| 229 | break; |
| 230 | |
| 231 | case LINE6_DEVID_TONEPORT_UX2: |
| 232 | ep_read = 0x87; |
| 233 | ep_write = 0x00; |
| 234 | break; |
| 235 | |
| 236 | default: |
| 237 | MISSING_CASE; |
| 238 | } |
| 239 | |
| 240 | line6pcm = kzalloc(sizeof(struct snd_line6_pcm), GFP_KERNEL); |
| 241 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 242 | if (line6pcm == NULL) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 243 | return -ENOMEM; |
| 244 | |
| 245 | line6pcm->volume[0] = line6pcm->volume[1] = 128; |
| 246 | line6pcm->line6 = line6; |
| 247 | line6pcm->ep_audio_read = ep_read; |
| 248 | line6pcm->ep_audio_write = ep_write; |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 249 | line6pcm->max_packet_size = usb_maxpacket(line6->usbdev, |
| 250 | usb_rcvintpipe(line6->usbdev, |
| 251 | ep_read), |
| 252 | 0); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 253 | line6pcm->properties = properties; |
| 254 | line6->line6pcm = line6pcm; |
| 255 | |
| 256 | /* PCM device: */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 257 | err = snd_device_new(line6->card, SNDRV_DEV_PCM, line6, &pcm_ops); |
| 258 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 259 | return err; |
| 260 | |
| 261 | snd_card_set_dev(line6->card, line6->ifcdev); |
| 262 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 263 | err = snd_line6_new_pcm(line6pcm); |
| 264 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 265 | return err; |
| 266 | |
| 267 | spin_lock_init(&line6pcm->lock_audio_out); |
| 268 | spin_lock_init(&line6pcm->lock_audio_in); |
| 269 | spin_lock_init(&line6pcm->lock_trigger); |
| 270 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 271 | err = create_audio_out_urbs(line6pcm); |
| 272 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 273 | return err; |
| 274 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 275 | err = create_audio_in_urbs(line6pcm); |
| 276 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 277 | return err; |
| 278 | |
| 279 | /* mixer: */ |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 280 | err = snd_ctl_add(line6->card, snd_ctl_new1(&line6_control, line6pcm)); |
| 281 | if (err < 0) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 282 | return err; |
| 283 | |
| 284 | return 0; |
| 285 | } |
| 286 | |
| 287 | /* prepare pcm callback */ |
| 288 | int snd_line6_prepare(struct snd_pcm_substream *substream) |
| 289 | { |
| 290 | struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); |
| 291 | |
Greg Kroah-Hartman | 68dc3dd | 2009-02-27 22:43:30 -0800 | [diff] [blame] | 292 | if (!test_and_set_bit(BIT_PREPARED, &line6pcm->flags)) { |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 293 | unlink_wait_clear_audio_out_urbs(line6pcm); |
| 294 | line6pcm->pos_out = 0; |
| 295 | line6pcm->pos_out_done = 0; |
| 296 | |
| 297 | unlink_wait_clear_audio_in_urbs(line6pcm); |
| 298 | line6pcm->bytes_out = 0; |
| 299 | line6pcm->pos_in_done = 0; |
| 300 | line6pcm->bytes_in = 0; |
| 301 | } |
| 302 | |
| 303 | return 0; |
| 304 | } |