Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 1 | /* |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 2 | * Copyright (c) 2006-2008 Daniel Mack, Karsten Wiese |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation; either version 2 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 17 | */ |
| 18 | |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 19 | #include <linux/device.h> |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 20 | #include <linux/spinlock.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 21 | #include <linux/slab.h> |
Daniel Mack | e431cf4 | 2009-03-28 21:19:49 +0100 | [diff] [blame] | 22 | #include <linux/init.h> |
| 23 | #include <linux/usb.h> |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 24 | #include <sound/core.h> |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 25 | #include <sound/pcm.h> |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 26 | |
Daniel Mack | 936e7d0 | 2009-04-01 19:05:39 +0200 | [diff] [blame] | 27 | #include "device.h" |
| 28 | #include "audio.h" |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 29 | |
| 30 | #define N_URBS 32 |
| 31 | #define CLOCK_DRIFT_TOLERANCE 5 |
| 32 | #define FRAMES_PER_URB 8 |
| 33 | #define BYTES_PER_FRAME 512 |
| 34 | #define CHANNELS_PER_STREAM 2 |
| 35 | #define BYTES_PER_SAMPLE 3 |
| 36 | #define BYTES_PER_SAMPLE_USB 4 |
| 37 | #define MAX_BUFFER_SIZE (128*1024) |
Daniel Mack | 6e9fc6b | 2008-04-14 15:40:31 +0200 | [diff] [blame] | 38 | #define MAX_ENDPOINT_SIZE 512 |
| 39 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 40 | #define ENDPOINT_CAPTURE 2 |
| 41 | #define ENDPOINT_PLAYBACK 6 |
| 42 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 43 | #define MAKE_CHECKBYTE(cdev,stream,i) \ |
| 44 | (stream << 1) | (~(i / (cdev->n_streams * BYTES_PER_SAMPLE_USB)) & 1) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 45 | |
| 46 | static struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = { |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 47 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 48 | SNDRV_PCM_INFO_BLOCK_TRANSFER), |
| 49 | .formats = SNDRV_PCM_FMTBIT_S24_3BE, |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 50 | .rates = (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 51 | SNDRV_PCM_RATE_96000), |
| 52 | .rate_min = 44100, |
| 53 | .rate_max = 0, /* will overwrite later */ |
| 54 | .channels_min = CHANNELS_PER_STREAM, |
| 55 | .channels_max = CHANNELS_PER_STREAM, |
| 56 | .buffer_bytes_max = MAX_BUFFER_SIZE, |
Daniel Mack | 09189ac | 2008-01-24 18:46:42 +0100 | [diff] [blame] | 57 | .period_bytes_min = 128, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 58 | .period_bytes_max = MAX_BUFFER_SIZE, |
| 59 | .periods_min = 1, |
| 60 | .periods_max = 1024, |
| 61 | }; |
| 62 | |
| 63 | static void |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 64 | activate_substream(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 65 | struct snd_pcm_substream *sub) |
| 66 | { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 67 | spin_lock(&cdev->spinlock); |
Mark Hills | ac9dd9d | 2009-10-24 12:59:36 +0100 | [diff] [blame] | 68 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 69 | if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 70 | cdev->sub_playback[sub->number] = sub; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 71 | else |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 72 | cdev->sub_capture[sub->number] = sub; |
Mark Hills | ac9dd9d | 2009-10-24 12:59:36 +0100 | [diff] [blame] | 73 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 74 | spin_unlock(&cdev->spinlock); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 75 | } |
| 76 | |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 77 | static void |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 78 | deactivate_substream(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 79 | struct snd_pcm_substream *sub) |
| 80 | { |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 81 | unsigned long flags; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 82 | spin_lock_irqsave(&cdev->spinlock, flags); |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 83 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 84 | if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 85 | cdev->sub_playback[sub->number] = NULL; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 86 | else |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 87 | cdev->sub_capture[sub->number] = NULL; |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 88 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 89 | spin_unlock_irqrestore(&cdev->spinlock, flags); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | static int |
| 93 | all_substreams_zero(struct snd_pcm_substream **subs) |
| 94 | { |
| 95 | int i; |
| 96 | for (i = 0; i < MAX_STREAMS; i++) |
| 97 | if (subs[i] != NULL) |
| 98 | return 0; |
| 99 | return 1; |
| 100 | } |
| 101 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 102 | static int stream_start(struct snd_usb_caiaqdev *cdev) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 103 | { |
| 104 | int i, ret; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 105 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 106 | |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 107 | dev_dbg(dev, "%s(%p)\n", __func__, cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 108 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 109 | if (cdev->streaming) |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 110 | return -EINVAL; |
| 111 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 112 | memset(cdev->sub_playback, 0, sizeof(cdev->sub_playback)); |
| 113 | memset(cdev->sub_capture, 0, sizeof(cdev->sub_capture)); |
| 114 | cdev->input_panic = 0; |
| 115 | cdev->output_panic = 0; |
| 116 | cdev->first_packet = 4; |
| 117 | cdev->streaming = 1; |
| 118 | cdev->warned = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 119 | |
| 120 | for (i = 0; i < N_URBS; i++) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 121 | ret = usb_submit_urb(cdev->data_urbs_in[i], GFP_ATOMIC); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 122 | if (ret) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 123 | dev_err(dev, "unable to trigger read #%d! (ret %d)\n", |
| 124 | i, ret); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 125 | cdev->streaming = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 126 | return -EPIPE; |
| 127 | } |
| 128 | } |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 129 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 130 | return 0; |
| 131 | } |
| 132 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 133 | static void stream_stop(struct snd_usb_caiaqdev *cdev) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 134 | { |
| 135 | int i; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 136 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 137 | |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 138 | dev_dbg(dev, "%s(%p)\n", __func__, cdev); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 139 | if (!cdev->streaming) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 140 | return; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 141 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 142 | cdev->streaming = 0; |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 143 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 144 | for (i = 0; i < N_URBS; i++) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 145 | usb_kill_urb(cdev->data_urbs_in[i]); |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 146 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 147 | if (test_bit(i, &cdev->outurb_active_mask)) |
| 148 | usb_kill_urb(cdev->data_urbs_out[i]); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 149 | } |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 150 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 151 | cdev->outurb_active_mask = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | static int snd_usb_caiaq_substream_open(struct snd_pcm_substream *substream) |
| 155 | { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 156 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 157 | struct device *dev = caiaqdev_to_dev(cdev); |
| 158 | |
| 159 | dev_dbg(dev, "%s(%p)\n", __func__, substream); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 160 | substream->runtime->hw = cdev->pcm_info; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 161 | snd_pcm_limit_hw_rates(substream->runtime); |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 162 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 163 | return 0; |
| 164 | } |
| 165 | |
| 166 | static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream) |
| 167 | { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 168 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 169 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 170 | |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 171 | dev_dbg(dev, "%s(%p)\n", __func__, substream); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 172 | if (all_substreams_zero(cdev->sub_playback) && |
| 173 | all_substreams_zero(cdev->sub_capture)) { |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 174 | /* when the last client has stopped streaming, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 175 | * all sample rates are allowed again */ |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 176 | stream_stop(cdev); |
| 177 | cdev->pcm_info.rates = cdev->samplerates; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 178 | } |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 179 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 180 | return 0; |
| 181 | } |
| 182 | |
| 183 | static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub, |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 184 | struct snd_pcm_hw_params *hw_params) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 185 | { |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 186 | return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params)); |
| 187 | } |
| 188 | |
| 189 | static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub) |
| 190 | { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 191 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 192 | deactivate_substream(cdev, sub); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 193 | return snd_pcm_lib_free_pages(sub); |
| 194 | } |
| 195 | |
| 196 | /* this should probably go upstream */ |
| 197 | #if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12 |
| 198 | #error "Change this table" |
| 199 | #endif |
| 200 | |
| 201 | static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100, |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 202 | 48000, 64000, 88200, 96000, 176400, 192000 }; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 203 | |
| 204 | static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream) |
| 205 | { |
| 206 | int bytes_per_sample, bpp, ret, i; |
| 207 | int index = substream->number; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 208 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 209 | struct snd_pcm_runtime *runtime = substream->runtime; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 210 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 211 | |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 212 | dev_dbg(dev, "%s(%p)\n", __func__, substream); |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 213 | |
Daniel Mack | a9b487f | 2009-04-27 12:18:05 +0200 | [diff] [blame] | 214 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 215 | int out_pos; |
| 216 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 217 | switch (cdev->spec.data_alignment) { |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 218 | case 0: |
| 219 | case 2: |
| 220 | out_pos = BYTES_PER_SAMPLE + 1; |
| 221 | break; |
| 222 | case 3: |
| 223 | default: |
| 224 | out_pos = 0; |
| 225 | break; |
| 226 | } |
| 227 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 228 | cdev->period_out_count[index] = out_pos; |
| 229 | cdev->audio_out_buf_pos[index] = out_pos; |
Daniel Mack | a9b487f | 2009-04-27 12:18:05 +0200 | [diff] [blame] | 230 | } else { |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 231 | int in_pos; |
| 232 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 233 | switch (cdev->spec.data_alignment) { |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 234 | case 0: |
| 235 | in_pos = BYTES_PER_SAMPLE + 2; |
| 236 | break; |
| 237 | case 2: |
| 238 | in_pos = BYTES_PER_SAMPLE; |
| 239 | break; |
| 240 | case 3: |
| 241 | default: |
| 242 | in_pos = 0; |
| 243 | break; |
| 244 | } |
| 245 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 246 | cdev->period_in_count[index] = in_pos; |
| 247 | cdev->audio_in_buf_pos[index] = in_pos; |
Daniel Mack | a9b487f | 2009-04-27 12:18:05 +0200 | [diff] [blame] | 248 | } |
| 249 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 250 | if (cdev->streaming) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 251 | return 0; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 252 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 253 | /* the first client that opens a stream defines the sample rate |
| 254 | * setting for all subsequent calls, until the last client closed. */ |
| 255 | for (i=0; i < ARRAY_SIZE(rates); i++) |
| 256 | if (runtime->rate == rates[i]) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 257 | cdev->pcm_info.rates = 1 << i; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 258 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 259 | snd_pcm_limit_hw_rates(runtime); |
| 260 | |
| 261 | bytes_per_sample = BYTES_PER_SAMPLE; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 262 | if (cdev->spec.data_alignment >= 2) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 263 | bytes_per_sample++; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 264 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 265 | bpp = ((runtime->rate / 8000) + CLOCK_DRIFT_TOLERANCE) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 266 | * bytes_per_sample * CHANNELS_PER_STREAM * cdev->n_streams; |
Daniel Mack | 6e9fc6b | 2008-04-14 15:40:31 +0200 | [diff] [blame] | 267 | |
| 268 | if (bpp > MAX_ENDPOINT_SIZE) |
| 269 | bpp = MAX_ENDPOINT_SIZE; |
| 270 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 271 | ret = snd_usb_caiaq_set_audio_params(cdev, runtime->rate, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 272 | runtime->sample_bits, bpp); |
| 273 | if (ret) |
| 274 | return ret; |
| 275 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 276 | ret = stream_start(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 277 | if (ret) |
| 278 | return ret; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 279 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 280 | cdev->output_running = 0; |
| 281 | wait_event_timeout(cdev->prepare_wait_queue, cdev->output_running, HZ); |
| 282 | if (!cdev->output_running) { |
| 283 | stream_stop(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 284 | return -EPIPE; |
| 285 | } |
| 286 | |
| 287 | return 0; |
| 288 | } |
| 289 | |
| 290 | static int snd_usb_caiaq_pcm_trigger(struct snd_pcm_substream *sub, int cmd) |
| 291 | { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 292 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 293 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 294 | |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 295 | dev_dbg(dev, "%s(%p) cmd %d\n", __func__, sub, cmd); |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 296 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 297 | switch (cmd) { |
| 298 | case SNDRV_PCM_TRIGGER_START: |
| 299 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 300 | activate_substream(cdev, sub); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 301 | break; |
| 302 | case SNDRV_PCM_TRIGGER_STOP: |
| 303 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 304 | deactivate_substream(cdev, sub); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 305 | break; |
| 306 | default: |
| 307 | return -EINVAL; |
| 308 | } |
| 309 | |
| 310 | return 0; |
| 311 | } |
| 312 | |
| 313 | static snd_pcm_uframes_t |
| 314 | snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub) |
| 315 | { |
| 316 | int index = sub->number; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 317 | struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); |
Mark Hills | 3702b08 | 2009-10-24 12:59:35 +0100 | [diff] [blame] | 318 | snd_pcm_uframes_t ptr; |
| 319 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 320 | spin_lock(&cdev->spinlock); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 321 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 322 | if (cdev->input_panic || cdev->output_panic) { |
Mark Hills | 3702b08 | 2009-10-24 12:59:35 +0100 | [diff] [blame] | 323 | ptr = SNDRV_PCM_POS_XRUN; |
Mark Hills | cb74eb1 | 2012-02-21 21:26:31 +0000 | [diff] [blame] | 324 | goto unlock; |
| 325 | } |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 326 | |
| 327 | if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Mark Hills | 3702b08 | 2009-10-24 12:59:35 +0100 | [diff] [blame] | 328 | ptr = bytes_to_frames(sub->runtime, |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 329 | cdev->audio_out_buf_pos[index]); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 330 | else |
Mark Hills | 3702b08 | 2009-10-24 12:59:35 +0100 | [diff] [blame] | 331 | ptr = bytes_to_frames(sub->runtime, |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 332 | cdev->audio_in_buf_pos[index]); |
Mark Hills | 3702b08 | 2009-10-24 12:59:35 +0100 | [diff] [blame] | 333 | |
Mark Hills | cb74eb1 | 2012-02-21 21:26:31 +0000 | [diff] [blame] | 334 | unlock: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 335 | spin_unlock(&cdev->spinlock); |
Mark Hills | 3702b08 | 2009-10-24 12:59:35 +0100 | [diff] [blame] | 336 | return ptr; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | /* operators for both playback and capture */ |
| 340 | static struct snd_pcm_ops snd_usb_caiaq_ops = { |
| 341 | .open = snd_usb_caiaq_substream_open, |
| 342 | .close = snd_usb_caiaq_substream_close, |
| 343 | .ioctl = snd_pcm_lib_ioctl, |
| 344 | .hw_params = snd_usb_caiaq_pcm_hw_params, |
| 345 | .hw_free = snd_usb_caiaq_pcm_hw_free, |
| 346 | .prepare = snd_usb_caiaq_pcm_prepare, |
| 347 | .trigger = snd_usb_caiaq_pcm_trigger, |
| 348 | .pointer = snd_usb_caiaq_pcm_pointer |
| 349 | }; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 350 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 351 | static void check_for_elapsed_periods(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 352 | struct snd_pcm_substream **subs) |
| 353 | { |
| 354 | int stream, pb, *cnt; |
| 355 | struct snd_pcm_substream *sub; |
| 356 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 357 | for (stream = 0; stream < cdev->n_streams; stream++) { |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 358 | sub = subs[stream]; |
| 359 | if (!sub) |
| 360 | continue; |
| 361 | |
Daniel Mack | a9b487f | 2009-04-27 12:18:05 +0200 | [diff] [blame] | 362 | pb = snd_pcm_lib_period_bytes(sub); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 363 | cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ? |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 364 | &cdev->period_out_count[stream] : |
| 365 | &cdev->period_in_count[stream]; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 366 | |
| 367 | if (*cnt >= pb) { |
| 368 | snd_pcm_period_elapsed(sub); |
| 369 | *cnt %= pb; |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 374 | static void read_in_urb_mode0(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 375 | const struct urb *urb, |
| 376 | const struct usb_iso_packet_descriptor *iso) |
| 377 | { |
| 378 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; |
| 379 | struct snd_pcm_substream *sub; |
| 380 | int stream, i; |
| 381 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 382 | if (all_substreams_zero(cdev->sub_capture)) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 383 | return; |
| 384 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 385 | for (i = 0; i < iso->actual_length;) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 386 | for (stream = 0; stream < cdev->n_streams; stream++, i++) { |
| 387 | sub = cdev->sub_capture[stream]; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 388 | if (sub) { |
| 389 | struct snd_pcm_runtime *rt = sub->runtime; |
| 390 | char *audio_buf = rt->dma_area; |
| 391 | int sz = frames_to_bytes(rt, rt->buffer_size); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 392 | audio_buf[cdev->audio_in_buf_pos[stream]++] |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 393 | = usb_buf[i]; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 394 | cdev->period_in_count[stream]++; |
| 395 | if (cdev->audio_in_buf_pos[stream] == sz) |
| 396 | cdev->audio_in_buf_pos[stream] = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 397 | } |
| 398 | } |
| 399 | } |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 400 | } |
| 401 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 402 | static void read_in_urb_mode2(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 403 | const struct urb *urb, |
| 404 | const struct usb_iso_packet_descriptor *iso) |
| 405 | { |
| 406 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; |
| 407 | unsigned char check_byte; |
| 408 | struct snd_pcm_substream *sub; |
| 409 | int stream, i; |
| 410 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 411 | for (i = 0; i < iso->actual_length;) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 412 | if (i % (cdev->n_streams * BYTES_PER_SAMPLE_USB) == 0) { |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 413 | for (stream = 0; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 414 | stream < cdev->n_streams; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 415 | stream++, i++) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 416 | if (cdev->first_packet) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 417 | continue; |
| 418 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 419 | check_byte = MAKE_CHECKBYTE(cdev, stream, i); |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 420 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 421 | if ((usb_buf[i] & 0x3f) != check_byte) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 422 | cdev->input_panic = 1; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 423 | |
| 424 | if (usb_buf[i] & 0x80) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 425 | cdev->output_panic = 1; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 426 | } |
| 427 | } |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 428 | cdev->first_packet = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 429 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 430 | for (stream = 0; stream < cdev->n_streams; stream++, i++) { |
| 431 | sub = cdev->sub_capture[stream]; |
| 432 | if (cdev->input_panic) |
Daniel Mack | 9311c9b | 2009-03-18 11:03:54 +0100 | [diff] [blame] | 433 | usb_buf[i] = 0; |
| 434 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 435 | if (sub) { |
| 436 | struct snd_pcm_runtime *rt = sub->runtime; |
| 437 | char *audio_buf = rt->dma_area; |
| 438 | int sz = frames_to_bytes(rt, rt->buffer_size); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 439 | audio_buf[cdev->audio_in_buf_pos[stream]++] = |
Karsten Wiese | a971c3d4 | 2007-03-29 17:02:45 +0200 | [diff] [blame] | 440 | usb_buf[i]; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 441 | cdev->period_in_count[stream]++; |
| 442 | if (cdev->audio_in_buf_pos[stream] == sz) |
| 443 | cdev->audio_in_buf_pos[stream] = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 444 | } |
| 445 | } |
| 446 | } |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 447 | } |
| 448 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 449 | static void read_in_urb_mode3(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 450 | const struct urb *urb, |
| 451 | const struct usb_iso_packet_descriptor *iso) |
| 452 | { |
| 453 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 454 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 455 | int stream, i; |
| 456 | |
| 457 | /* paranoia check */ |
| 458 | if (iso->actual_length % (BYTES_PER_SAMPLE_USB * CHANNELS_PER_STREAM)) |
| 459 | return; |
| 460 | |
| 461 | for (i = 0; i < iso->actual_length;) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 462 | for (stream = 0; stream < cdev->n_streams; stream++) { |
| 463 | struct snd_pcm_substream *sub = cdev->sub_capture[stream]; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 464 | char *audio_buf = NULL; |
| 465 | int c, n, sz = 0; |
| 466 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 467 | if (sub && !cdev->input_panic) { |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 468 | struct snd_pcm_runtime *rt = sub->runtime; |
| 469 | audio_buf = rt->dma_area; |
| 470 | sz = frames_to_bytes(rt, rt->buffer_size); |
| 471 | } |
| 472 | |
| 473 | for (c = 0; c < CHANNELS_PER_STREAM; c++) { |
| 474 | /* 3 audio data bytes, followed by 1 check byte */ |
| 475 | if (audio_buf) { |
| 476 | for (n = 0; n < BYTES_PER_SAMPLE; n++) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 477 | audio_buf[cdev->audio_in_buf_pos[stream]++] = usb_buf[i+n]; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 478 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 479 | if (cdev->audio_in_buf_pos[stream] == sz) |
| 480 | cdev->audio_in_buf_pos[stream] = 0; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 481 | } |
| 482 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 483 | cdev->period_in_count[stream] += BYTES_PER_SAMPLE; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | i += BYTES_PER_SAMPLE; |
| 487 | |
| 488 | if (usb_buf[i] != ((stream << 1) | c) && |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 489 | !cdev->first_packet) { |
| 490 | if (!cdev->input_panic) |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 491 | dev_warn(dev, " EXPECTED: %02x got %02x, c %d, stream %d, i %d\n", |
| 492 | ((stream << 1) | c), usb_buf[i], c, stream, i); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 493 | cdev->input_panic = 1; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 494 | } |
| 495 | |
| 496 | i++; |
| 497 | } |
| 498 | } |
| 499 | } |
| 500 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 501 | if (cdev->first_packet > 0) |
| 502 | cdev->first_packet--; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 503 | } |
| 504 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 505 | static void read_in_urb(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 506 | const struct urb *urb, |
| 507 | const struct usb_iso_packet_descriptor *iso) |
| 508 | { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 509 | struct device *dev = caiaqdev_to_dev(cdev); |
| 510 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 511 | if (!cdev->streaming) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 512 | return; |
| 513 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 514 | if (iso->actual_length < cdev->bpp) |
Daniel Mack | 9311c9b | 2009-03-18 11:03:54 +0100 | [diff] [blame] | 515 | return; |
| 516 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 517 | switch (cdev->spec.data_alignment) { |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 518 | case 0: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 519 | read_in_urb_mode0(cdev, urb, iso); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 520 | break; |
| 521 | case 2: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 522 | read_in_urb_mode2(cdev, urb, iso); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 523 | break; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 524 | case 3: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 525 | read_in_urb_mode3(cdev, urb, iso); |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 526 | break; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 527 | } |
| 528 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 529 | if ((cdev->input_panic || cdev->output_panic) && !cdev->warned) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 530 | dev_warn(dev, "streaming error detected %s %s\n", |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 531 | cdev->input_panic ? "(input)" : "", |
| 532 | cdev->output_panic ? "(output)" : ""); |
| 533 | cdev->warned = 1; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 534 | } |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 535 | } |
| 536 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 537 | static void fill_out_urb_mode_0(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 538 | struct urb *urb, |
| 539 | const struct usb_iso_packet_descriptor *iso) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 540 | { |
| 541 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; |
| 542 | struct snd_pcm_substream *sub; |
| 543 | int stream, i; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 544 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 545 | for (i = 0; i < iso->length;) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 546 | for (stream = 0; stream < cdev->n_streams; stream++, i++) { |
| 547 | sub = cdev->sub_playback[stream]; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 548 | if (sub) { |
| 549 | struct snd_pcm_runtime *rt = sub->runtime; |
| 550 | char *audio_buf = rt->dma_area; |
| 551 | int sz = frames_to_bytes(rt, rt->buffer_size); |
Karsten Wiese | a971c3d4 | 2007-03-29 17:02:45 +0200 | [diff] [blame] | 552 | usb_buf[i] = |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 553 | audio_buf[cdev->audio_out_buf_pos[stream]]; |
| 554 | cdev->period_out_count[stream]++; |
| 555 | cdev->audio_out_buf_pos[stream]++; |
| 556 | if (cdev->audio_out_buf_pos[stream] == sz) |
| 557 | cdev->audio_out_buf_pos[stream] = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 558 | } else |
Karsten Wiese | a971c3d4 | 2007-03-29 17:02:45 +0200 | [diff] [blame] | 559 | usb_buf[i] = 0; |
| 560 | } |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 561 | |
| 562 | /* fill in the check bytes */ |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 563 | if (cdev->spec.data_alignment == 2 && |
| 564 | i % (cdev->n_streams * BYTES_PER_SAMPLE_USB) == |
| 565 | (cdev->n_streams * CHANNELS_PER_STREAM)) |
| 566 | for (stream = 0; stream < cdev->n_streams; stream++, i++) |
| 567 | usb_buf[i] = MAKE_CHECKBYTE(cdev, stream, i); |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 568 | } |
| 569 | } |
| 570 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 571 | static void fill_out_urb_mode_3(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 572 | struct urb *urb, |
| 573 | const struct usb_iso_packet_descriptor *iso) |
| 574 | { |
| 575 | unsigned char *usb_buf = urb->transfer_buffer + iso->offset; |
| 576 | int stream, i; |
| 577 | |
| 578 | for (i = 0; i < iso->length;) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 579 | for (stream = 0; stream < cdev->n_streams; stream++) { |
| 580 | struct snd_pcm_substream *sub = cdev->sub_playback[stream]; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 581 | char *audio_buf = NULL; |
| 582 | int c, n, sz = 0; |
| 583 | |
| 584 | if (sub) { |
| 585 | struct snd_pcm_runtime *rt = sub->runtime; |
| 586 | audio_buf = rt->dma_area; |
| 587 | sz = frames_to_bytes(rt, rt->buffer_size); |
| 588 | } |
| 589 | |
| 590 | for (c = 0; c < CHANNELS_PER_STREAM; c++) { |
| 591 | for (n = 0; n < BYTES_PER_SAMPLE; n++) { |
| 592 | if (audio_buf) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 593 | usb_buf[i+n] = audio_buf[cdev->audio_out_buf_pos[stream]++]; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 594 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 595 | if (cdev->audio_out_buf_pos[stream] == sz) |
| 596 | cdev->audio_out_buf_pos[stream] = 0; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 597 | } else { |
| 598 | usb_buf[i+n] = 0; |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | if (audio_buf) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 603 | cdev->period_out_count[stream] += BYTES_PER_SAMPLE; |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 604 | |
| 605 | i += BYTES_PER_SAMPLE; |
| 606 | |
| 607 | /* fill in the check byte pattern */ |
| 608 | usb_buf[i++] = (stream << 1) | c; |
| 609 | } |
| 610 | } |
| 611 | } |
| 612 | } |
| 613 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 614 | static inline void fill_out_urb(struct snd_usb_caiaqdev *cdev, |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 615 | struct urb *urb, |
| 616 | const struct usb_iso_packet_descriptor *iso) |
| 617 | { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 618 | switch (cdev->spec.data_alignment) { |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 619 | case 0: |
| 620 | case 2: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 621 | fill_out_urb_mode_0(cdev, urb, iso); |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 622 | break; |
| 623 | case 3: |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 624 | fill_out_urb_mode_3(cdev, urb, iso); |
Daniel Mack | 15c5ab6 | 2010-09-10 17:04:57 +0800 | [diff] [blame] | 625 | break; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 626 | } |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 627 | } |
| 628 | |
| 629 | static void read_completed(struct urb *urb) |
| 630 | { |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 631 | struct snd_usb_caiaq_cb_info *info = urb->context; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 632 | struct snd_usb_caiaqdev *cdev; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 633 | struct device *dev; |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 634 | struct urb *out = NULL; |
| 635 | int i, frame, len, send_it = 0, outframe = 0; |
Daniel Mack | 15439bd | 2011-08-05 13:49:52 +0200 | [diff] [blame] | 636 | size_t offset = 0; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 637 | |
| 638 | if (urb->status || !info) |
| 639 | return; |
| 640 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 641 | cdev = info->cdev; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 642 | dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 8d04884 | 2008-04-14 15:39:14 +0200 | [diff] [blame] | 643 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 644 | if (!cdev->streaming) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 645 | return; |
| 646 | |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 647 | /* find an unused output urb that is unused */ |
| 648 | for (i = 0; i < N_URBS; i++) |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 649 | if (test_and_set_bit(i, &cdev->outurb_active_mask) == 0) { |
| 650 | out = cdev->data_urbs_out[i]; |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 651 | break; |
| 652 | } |
| 653 | |
| 654 | if (!out) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 655 | dev_err(dev, "Unable to find an output urb to use\n"); |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 656 | goto requeue; |
| 657 | } |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 658 | |
| 659 | /* read the recently received packet and send back one which has |
| 660 | * the same layout */ |
| 661 | for (frame = 0; frame < FRAMES_PER_URB; frame++) { |
| 662 | if (urb->iso_frame_desc[frame].status) |
| 663 | continue; |
| 664 | |
| 665 | len = urb->iso_frame_desc[outframe].actual_length; |
| 666 | out->iso_frame_desc[outframe].length = len; |
| 667 | out->iso_frame_desc[outframe].actual_length = 0; |
Daniel Mack | 15439bd | 2011-08-05 13:49:52 +0200 | [diff] [blame] | 668 | out->iso_frame_desc[outframe].offset = offset; |
| 669 | offset += len; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 670 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 671 | if (len > 0) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 672 | spin_lock(&cdev->spinlock); |
| 673 | fill_out_urb(cdev, out, &out->iso_frame_desc[outframe]); |
| 674 | read_in_urb(cdev, urb, &urb->iso_frame_desc[frame]); |
| 675 | spin_unlock(&cdev->spinlock); |
| 676 | check_for_elapsed_periods(cdev, cdev->sub_playback); |
| 677 | check_for_elapsed_periods(cdev, cdev->sub_capture); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 678 | send_it = 1; |
| 679 | } |
| 680 | |
| 681 | outframe++; |
| 682 | } |
| 683 | |
| 684 | if (send_it) { |
Daniel Mack | 15439bd | 2011-08-05 13:49:52 +0200 | [diff] [blame] | 685 | out->number_of_packets = outframe; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 686 | out->transfer_flags = URB_ISO_ASAP; |
| 687 | usb_submit_urb(out, GFP_ATOMIC); |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 688 | } else { |
| 689 | struct snd_usb_caiaq_cb_info *oinfo = out->context; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 690 | clear_bit(oinfo->index, &cdev->outurb_active_mask); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 691 | } |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 692 | |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 693 | requeue: |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 694 | /* re-submit inbound urb */ |
| 695 | for (frame = 0; frame < FRAMES_PER_URB; frame++) { |
| 696 | urb->iso_frame_desc[frame].offset = BYTES_PER_FRAME * frame; |
| 697 | urb->iso_frame_desc[frame].length = BYTES_PER_FRAME; |
| 698 | urb->iso_frame_desc[frame].actual_length = 0; |
| 699 | } |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 700 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 701 | urb->number_of_packets = FRAMES_PER_URB; |
| 702 | urb->transfer_flags = URB_ISO_ASAP; |
| 703 | usb_submit_urb(urb, GFP_ATOMIC); |
| 704 | } |
| 705 | |
| 706 | static void write_completed(struct urb *urb) |
| 707 | { |
| 708 | struct snd_usb_caiaq_cb_info *info = urb->context; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 709 | struct snd_usb_caiaqdev *cdev = info->cdev; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 710 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 711 | if (!cdev->output_running) { |
| 712 | cdev->output_running = 1; |
| 713 | wake_up(&cdev->prepare_wait_queue); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 714 | } |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 715 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 716 | clear_bit(info->index, &cdev->outurb_active_mask); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 717 | } |
| 718 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 719 | static struct urb **alloc_urbs(struct snd_usb_caiaqdev *cdev, int dir, int *ret) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 720 | { |
| 721 | int i, frame; |
| 722 | struct urb **urbs; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 723 | struct usb_device *usb_dev = cdev->chip.dev; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 724 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 725 | unsigned int pipe; |
| 726 | |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 727 | pipe = (dir == SNDRV_PCM_STREAM_PLAYBACK) ? |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 728 | usb_sndisocpipe(usb_dev, ENDPOINT_PLAYBACK) : |
| 729 | usb_rcvisocpipe(usb_dev, ENDPOINT_CAPTURE); |
| 730 | |
| 731 | urbs = kmalloc(N_URBS * sizeof(*urbs), GFP_KERNEL); |
| 732 | if (!urbs) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 733 | dev_err(dev, "unable to kmalloc() urbs, OOM!?\n"); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 734 | *ret = -ENOMEM; |
| 735 | return NULL; |
| 736 | } |
| 737 | |
| 738 | for (i = 0; i < N_URBS; i++) { |
| 739 | urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL); |
| 740 | if (!urbs[i]) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 741 | dev_err(dev, "unable to usb_alloc_urb(), OOM!?\n"); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 742 | *ret = -ENOMEM; |
| 743 | return urbs; |
| 744 | } |
| 745 | |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 746 | urbs[i]->transfer_buffer = |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 747 | kmalloc(FRAMES_PER_URB * BYTES_PER_FRAME, GFP_KERNEL); |
| 748 | if (!urbs[i]->transfer_buffer) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 749 | dev_err(dev, "unable to kmalloc() transfer buffer, OOM!?\n"); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 750 | *ret = -ENOMEM; |
| 751 | return urbs; |
| 752 | } |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 753 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 754 | for (frame = 0; frame < FRAMES_PER_URB; frame++) { |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 755 | struct usb_iso_packet_descriptor *iso = |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 756 | &urbs[i]->iso_frame_desc[frame]; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 757 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 758 | iso->offset = BYTES_PER_FRAME * frame; |
| 759 | iso->length = BYTES_PER_FRAME; |
| 760 | } |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 761 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 762 | urbs[i]->dev = usb_dev; |
| 763 | urbs[i]->pipe = pipe; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 764 | urbs[i]->transfer_buffer_length = FRAMES_PER_URB |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 765 | * BYTES_PER_FRAME; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 766 | urbs[i]->context = &cdev->data_cb_info[i]; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 767 | urbs[i]->interval = 1; |
| 768 | urbs[i]->transfer_flags = URB_ISO_ASAP; |
| 769 | urbs[i]->number_of_packets = FRAMES_PER_URB; |
| 770 | urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ? |
| 771 | read_completed : write_completed; |
| 772 | } |
| 773 | |
| 774 | *ret = 0; |
| 775 | return urbs; |
| 776 | } |
| 777 | |
| 778 | static void free_urbs(struct urb **urbs) |
| 779 | { |
| 780 | int i; |
| 781 | |
| 782 | if (!urbs) |
| 783 | return; |
| 784 | |
| 785 | for (i = 0; i < N_URBS; i++) { |
| 786 | if (!urbs[i]) |
| 787 | continue; |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 788 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 789 | usb_kill_urb(urbs[i]); |
| 790 | kfree(urbs[i]->transfer_buffer); |
| 791 | usb_free_urb(urbs[i]); |
| 792 | } |
| 793 | |
| 794 | kfree(urbs); |
| 795 | } |
| 796 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 797 | int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 798 | { |
| 799 | int i, ret; |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 800 | struct device *dev = caiaqdev_to_dev(cdev); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 801 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 802 | cdev->n_audio_in = max(cdev->spec.num_analog_audio_in, |
| 803 | cdev->spec.num_digital_audio_in) / |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 804 | CHANNELS_PER_STREAM; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 805 | cdev->n_audio_out = max(cdev->spec.num_analog_audio_out, |
| 806 | cdev->spec.num_digital_audio_out) / |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 807 | CHANNELS_PER_STREAM; |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 808 | cdev->n_streams = max(cdev->n_audio_in, cdev->n_audio_out); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 809 | |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 810 | dev_dbg(dev, "cdev->n_audio_in = %d\n", cdev->n_audio_in); |
| 811 | dev_dbg(dev, "cdev->n_audio_out = %d\n", cdev->n_audio_out); |
| 812 | dev_dbg(dev, "cdev->n_streams = %d\n", cdev->n_streams); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 813 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 814 | if (cdev->n_streams > MAX_STREAMS) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 815 | dev_err(dev, "unable to initialize device, too many streams.\n"); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 816 | return -EINVAL; |
| 817 | } |
| 818 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 819 | ret = snd_pcm_new(cdev->chip.card, cdev->product_name, 0, |
| 820 | cdev->n_audio_out, cdev->n_audio_in, &cdev->pcm); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 821 | |
| 822 | if (ret < 0) { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 823 | dev_err(dev, "snd_pcm_new() returned %d\n", ret); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 824 | return ret; |
| 825 | } |
| 826 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 827 | cdev->pcm->private_data = cdev; |
| 828 | strlcpy(cdev->pcm->name, cdev->product_name, sizeof(cdev->pcm->name)); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 829 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 830 | memset(cdev->sub_playback, 0, sizeof(cdev->sub_playback)); |
| 831 | memset(cdev->sub_capture, 0, sizeof(cdev->sub_capture)); |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 832 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 833 | memcpy(&cdev->pcm_info, &snd_usb_caiaq_pcm_hardware, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 834 | sizeof(snd_usb_caiaq_pcm_hardware)); |
| 835 | |
| 836 | /* setup samplerates */ |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 837 | cdev->samplerates = cdev->pcm_info.rates; |
| 838 | switch (cdev->chip.usb_id) { |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 839 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): |
Daniel Mack | ad1e34b | 2007-09-17 14:45:14 +0200 | [diff] [blame] | 840 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): |
Daniel Mack | f3e9d5d | 2008-05-08 15:42:15 +0200 | [diff] [blame] | 841 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_SESSIONIO): |
Daniel Mack | 2165592 | 2009-01-16 11:03:19 +0100 | [diff] [blame] | 842 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_GUITARRIGMOBILE): |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 843 | cdev->samplerates |= SNDRV_PCM_RATE_192000; |
Daniel Mack | 2165592 | 2009-01-16 11:03:19 +0100 | [diff] [blame] | 844 | /* fall thru */ |
Daniel Mack | b30c494 | 2009-07-22 14:13:35 +0200 | [diff] [blame] | 845 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO2DJ): |
Daniel Mack | 2165592 | 2009-01-16 11:03:19 +0100 | [diff] [blame] | 846 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ): |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 847 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): |
Daniel Mack | df8d81a | 2010-09-01 16:23:46 +0800 | [diff] [blame] | 848 | case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORAUDIO2): |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 849 | cdev->samplerates |= SNDRV_PCM_RATE_88200; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 850 | break; |
| 851 | } |
| 852 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 853 | snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_PLAYBACK, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 854 | &snd_usb_caiaq_ops); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 855 | snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_CAPTURE, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 856 | &snd_usb_caiaq_ops); |
| 857 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 858 | snd_pcm_lib_preallocate_pages_for_all(cdev->pcm, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 859 | SNDRV_DMA_TYPE_CONTINUOUS, |
| 860 | snd_dma_continuous_data(GFP_KERNEL), |
| 861 | MAX_BUFFER_SIZE, MAX_BUFFER_SIZE); |
| 862 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 863 | cdev->data_cb_info = |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 864 | kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS, |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 865 | GFP_KERNEL); |
| 866 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 867 | if (!cdev->data_cb_info) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 868 | return -ENOMEM; |
| 869 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 870 | cdev->outurb_active_mask = 0; |
| 871 | BUILD_BUG_ON(N_URBS > (sizeof(cdev->outurb_active_mask) * 8)); |
Daniel Mack | da6094e | 2011-08-14 11:31:16 +0200 | [diff] [blame] | 872 | |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 873 | for (i = 0; i < N_URBS; i++) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 874 | cdev->data_cb_info[i].cdev = cdev; |
| 875 | cdev->data_cb_info[i].index = i; |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 876 | } |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 877 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 878 | cdev->data_urbs_in = alloc_urbs(cdev, SNDRV_PCM_STREAM_CAPTURE, &ret); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 879 | if (ret < 0) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 880 | kfree(cdev->data_cb_info); |
| 881 | free_urbs(cdev->data_urbs_in); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 882 | return ret; |
| 883 | } |
Daniel Mack | 9318dce | 2009-06-01 21:36:23 +0200 | [diff] [blame] | 884 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 885 | cdev->data_urbs_out = alloc_urbs(cdev, SNDRV_PCM_STREAM_PLAYBACK, &ret); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 886 | if (ret < 0) { |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 887 | kfree(cdev->data_cb_info); |
| 888 | free_urbs(cdev->data_urbs_in); |
| 889 | free_urbs(cdev->data_urbs_out); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 890 | return ret; |
| 891 | } |
| 892 | |
| 893 | return 0; |
| 894 | } |
| 895 | |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 896 | void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *cdev) |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 897 | { |
Daniel Mack | f1f6b8f | 2013-03-03 20:46:22 +0100 | [diff] [blame^] | 898 | struct device *dev = caiaqdev_to_dev(cdev); |
| 899 | |
| 900 | dev_dbg(dev, "%s(%p)\n", __func__, cdev); |
Daniel Mack | 1c8470c | 2013-03-03 20:46:21 +0100 | [diff] [blame] | 901 | stream_stop(cdev); |
| 902 | free_urbs(cdev->data_urbs_in); |
| 903 | free_urbs(cdev->data_urbs_out); |
| 904 | kfree(cdev->data_cb_info); |
Daniel Mack | 523f1dc | 2007-03-26 19:11:24 +0200 | [diff] [blame] | 905 | } |
| 906 | |