R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * * |
| 3 | * easycap_sound.c * |
| 4 | * * |
| 5 | * Audio driver for EasyCAP USB2.0 Video Capture Device DC60 * |
| 6 | * * |
| 7 | * * |
| 8 | ******************************************************************************/ |
| 9 | /* |
| 10 | * |
| 11 | * Copyright (C) 2010 R.M. Thomas <rmthomas@sciolus.org> |
| 12 | * |
| 13 | * |
| 14 | * This is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * The software is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with this software; if not, write to the Free Software |
| 26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 27 | * |
| 28 | */ |
| 29 | /*****************************************************************************/ |
| 30 | |
| 31 | #include "easycap.h" |
| 32 | #include "easycap_debug.h" |
| 33 | #include "easycap_sound.h" |
| 34 | |
| 35 | /*****************************************************************************/ |
| 36 | /*---------------------------------------------------------------------------*/ |
| 37 | /* |
| 38 | * ON COMPLETION OF AN AUDIO URB ITS DATA IS COPIED TO THE AUDIO BUFFERS |
Mike Thomas | ce36ced | 2010-11-07 19:56:40 +0000 | [diff] [blame] | 39 | * PROVIDED peasycap->audio_idle IS ZERO. REGARDLESS OF THIS BEING TRUE, |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 40 | * IT IS RESUBMITTED PROVIDED peasycap->audio_isoc_streaming IS NOT ZERO. |
| 41 | */ |
| 42 | /*---------------------------------------------------------------------------*/ |
| 43 | void |
| 44 | easysnd_complete(struct urb *purb) |
| 45 | { |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 46 | struct easycap *peasycap; |
| 47 | struct data_buffer *paudio_buffer; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 48 | __u8 *p1, *p2; |
| 49 | __s16 s16; |
| 50 | int i, j, more, much, leap, rc; |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 51 | #if defined(UPSAMPLE) |
| 52 | int k; |
| 53 | __s16 oldaudio, newaudio, delta; |
| 54 | #endif /*UPSAMPLE*/ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 55 | |
| 56 | JOT(16, "\n"); |
| 57 | |
| 58 | if (NULL == purb) { |
| 59 | SAY("ERROR: purb is NULL\n"); |
| 60 | return; |
| 61 | } |
| 62 | peasycap = purb->context; |
| 63 | if (NULL == peasycap) { |
| 64 | SAY("ERROR: peasycap is NULL\n"); |
| 65 | return; |
| 66 | } |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 67 | if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) { |
| 68 | SAY("ERROR: bad peasycap\n"); |
| 69 | return; |
| 70 | } |
| 71 | |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 72 | much = 0; |
| 73 | |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 74 | if (peasycap->audio_idle) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 75 | JOM(16, "%i=audio_idle %i=audio_isoc_streaming\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 76 | peasycap->audio_idle, peasycap->audio_isoc_streaming); |
| 77 | if (peasycap->audio_isoc_streaming) { |
| 78 | rc = usb_submit_urb(purb, GFP_ATOMIC); |
| 79 | if (0 != rc) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 80 | if (-ENODEV != rc) |
| 81 | SAM("ERROR: while %i=audio_idle, " \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 82 | "usb_submit_urb() failed with rc:\n", \ |
| 83 | peasycap->audio_idle); |
| 84 | switch (rc) { |
| 85 | case -ENOMEM: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 86 | SAM("-ENOMEM\n"); |
| 87 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 88 | } |
| 89 | case -ENODEV: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 90 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 91 | } |
| 92 | case -ENXIO: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 93 | SAM("-ENXIO\n"); |
| 94 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 95 | } |
| 96 | case -EINVAL: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 97 | SAM("-EINVAL\n"); |
| 98 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 99 | } |
| 100 | case -EAGAIN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 101 | SAM("-EAGAIN\n"); |
| 102 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 103 | } |
| 104 | case -EFBIG: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 105 | SAM("-EFBIG\n"); |
| 106 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 107 | } |
| 108 | case -EPIPE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 109 | SAM("-EPIPE\n"); |
| 110 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 111 | } |
| 112 | case -EMSGSIZE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 113 | SAM("-EMSGSIZE\n"); |
| 114 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 115 | } |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 116 | case -ENOSPC: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 117 | SAM("-ENOSPC\n"); |
| 118 | break; |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 119 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 120 | default: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 121 | SAM("unknown error: 0x%08X\n", rc); |
| 122 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 123 | } |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | return; |
| 128 | } |
| 129 | /*---------------------------------------------------------------------------*/ |
| 130 | if (purb->status) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 131 | if ((-ESHUTDOWN == purb->status) || (-ENOENT == purb->status)) { |
| 132 | JOM(16, "urb status -ESHUTDOWN or -ENOENT\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 133 | return; |
| 134 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 135 | SAM("ERROR: non-zero urb status:\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 136 | switch (purb->status) { |
| 137 | case -EINPROGRESS: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 138 | SAM("-EINPROGRESS\n"); |
| 139 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 140 | } |
| 141 | case -ENOSR: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 142 | SAM("-ENOSR\n"); |
| 143 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 144 | } |
| 145 | case -EPIPE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 146 | SAM("-EPIPE\n"); |
| 147 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 148 | } |
| 149 | case -EOVERFLOW: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 150 | SAM("-EOVERFLOW\n"); |
| 151 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 152 | } |
| 153 | case -EPROTO: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 154 | SAM("-EPROTO\n"); |
| 155 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 156 | } |
| 157 | case -EILSEQ: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 158 | SAM("-EILSEQ\n"); |
| 159 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 160 | } |
| 161 | case -ETIMEDOUT: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 162 | SAM("-ETIMEDOUT\n"); |
| 163 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 164 | } |
| 165 | case -EMSGSIZE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 166 | SAM("-EMSGSIZE\n"); |
| 167 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 168 | } |
| 169 | case -EOPNOTSUPP: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 170 | SAM("-EOPNOTSUPP\n"); |
| 171 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 172 | } |
| 173 | case -EPFNOSUPPORT: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 174 | SAM("-EPFNOSUPPORT\n"); |
| 175 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 176 | } |
| 177 | case -EAFNOSUPPORT: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 178 | SAM("-EAFNOSUPPORT\n"); |
| 179 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 180 | } |
| 181 | case -EADDRINUSE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 182 | SAM("-EADDRINUSE\n"); |
| 183 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 184 | } |
| 185 | case -EADDRNOTAVAIL: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 186 | SAM("-EADDRNOTAVAIL\n"); |
| 187 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 188 | } |
| 189 | case -ENOBUFS: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 190 | SAM("-ENOBUFS\n"); |
| 191 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 192 | } |
| 193 | case -EISCONN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 194 | SAM("-EISCONN\n"); |
| 195 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 196 | } |
| 197 | case -ENOTCONN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 198 | SAM("-ENOTCONN\n"); |
| 199 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 200 | } |
| 201 | case -ESHUTDOWN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 202 | SAM("-ESHUTDOWN\n"); |
| 203 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 204 | } |
| 205 | case -ENOENT: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 206 | SAM("-ENOENT\n"); |
| 207 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 208 | } |
| 209 | case -ECONNRESET: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 210 | SAM("-ECONNRESET\n"); |
| 211 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 212 | } |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 213 | case -ENOSPC: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 214 | SAM("ENOSPC\n"); |
| 215 | break; |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 216 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 217 | default: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 218 | SAM("unknown error code 0x%08X\n", purb->status); |
| 219 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 220 | } |
| 221 | } |
| 222 | /*---------------------------------------------------------------------------*/ |
| 223 | /* |
| 224 | * RESUBMIT THIS URB AFTER AN ERROR |
| 225 | * |
| 226 | * (THIS IS DUPLICATE CODE TO REDUCE INDENTATION OF THE NO-ERROR PATH) |
| 227 | */ |
| 228 | /*---------------------------------------------------------------------------*/ |
| 229 | if (peasycap->audio_isoc_streaming) { |
| 230 | rc = usb_submit_urb(purb, GFP_ATOMIC); |
| 231 | if (0 != rc) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 232 | SAM("ERROR: while %i=audio_idle, usb_submit_urb() " |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 233 | "failed with rc:\n", peasycap->audio_idle); |
| 234 | switch (rc) { |
| 235 | case -ENOMEM: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 236 | SAM("-ENOMEM\n"); |
| 237 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 238 | } |
| 239 | case -ENODEV: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 240 | SAM("-ENODEV\n"); |
| 241 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 242 | } |
| 243 | case -ENXIO: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 244 | SAM("-ENXIO\n"); |
| 245 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 246 | } |
| 247 | case -EINVAL: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 248 | SAM("-EINVAL\n"); |
| 249 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 250 | } |
| 251 | case -EAGAIN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 252 | SAM("-EAGAIN\n"); |
| 253 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 254 | } |
| 255 | case -EFBIG: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 256 | SAM("-EFBIG\n"); |
| 257 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 258 | } |
| 259 | case -EPIPE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 260 | SAM("-EPIPE\n"); |
| 261 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 262 | } |
| 263 | case -EMSGSIZE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 264 | SAM("-EMSGSIZE\n"); |
| 265 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 266 | } |
| 267 | default: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 268 | SAM("0x%08X\n", rc); break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 269 | } |
| 270 | } |
| 271 | } |
| 272 | } |
| 273 | return; |
| 274 | } |
| 275 | /*---------------------------------------------------------------------------*/ |
| 276 | /* |
| 277 | * PROCEED HERE WHEN NO ERROR |
| 278 | */ |
| 279 | /*---------------------------------------------------------------------------*/ |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 280 | #if defined(UPSAMPLE) |
| 281 | oldaudio = peasycap->oldaudio; |
| 282 | #endif /*UPSAMPLE*/ |
| 283 | |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 284 | for (i = 0; i < purb->number_of_packets; i++) { |
| 285 | switch (purb->iso_frame_desc[i].status) { |
| 286 | case 0: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 287 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 288 | } |
| 289 | case -ENOENT: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 290 | SAM("-ENOENT\n"); |
| 291 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 292 | } |
| 293 | case -EINPROGRESS: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 294 | SAM("-EINPROGRESS\n"); |
| 295 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 296 | } |
| 297 | case -EPROTO: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 298 | SAM("-EPROTO\n"); |
| 299 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 300 | } |
| 301 | case -EILSEQ: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 302 | SAM("-EILSEQ\n"); |
| 303 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 304 | } |
| 305 | case -ETIME: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 306 | SAM("-ETIME\n"); |
| 307 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 308 | } |
| 309 | case -ETIMEDOUT: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 310 | SAM("-ETIMEDOUT\n"); |
| 311 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 312 | } |
| 313 | case -EPIPE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 314 | SAM("-EPIPE\n"); |
| 315 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 316 | } |
| 317 | case -ECOMM: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 318 | SAM("-ECOMM\n"); |
| 319 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 320 | } |
| 321 | case -ENOSR: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 322 | SAM("-ENOSR\n"); |
| 323 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 324 | } |
| 325 | case -EOVERFLOW: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 326 | SAM("-EOVERFLOW\n"); |
| 327 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 328 | } |
| 329 | case -EREMOTEIO: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 330 | SAM("-EREMOTEIO\n"); |
| 331 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 332 | } |
| 333 | case -ENODEV: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 334 | SAM("-ENODEV\n"); |
| 335 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 336 | } |
| 337 | case -EXDEV: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 338 | SAM("-EXDEV\n"); |
| 339 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 340 | } |
| 341 | case -EINVAL: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 342 | SAM("-EINVAL\n"); |
| 343 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 344 | } |
| 345 | case -ECONNRESET: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 346 | SAM("-ECONNRESET\n"); |
| 347 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 348 | } |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 349 | case -ENOSPC: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 350 | SAM("-ENOSPC\n"); |
| 351 | break; |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 352 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 353 | case -ESHUTDOWN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 354 | SAM("-ESHUTDOWN\n"); |
| 355 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 356 | } |
| 357 | default: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 358 | SAM("unknown error:0x%08X\n", purb->iso_frame_desc[i].status); |
| 359 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 360 | } |
| 361 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 362 | if (!purb->iso_frame_desc[i].status) { |
| 363 | more = purb->iso_frame_desc[i].actual_length; |
| 364 | |
| 365 | #if defined(TESTTONE) |
| 366 | if (!more) |
| 367 | more = purb->iso_frame_desc[i].length; |
| 368 | #endif |
| 369 | |
| 370 | if (!more) |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 371 | peasycap->audio_mt++; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 372 | else { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 373 | if (peasycap->audio_mt) { |
| 374 | JOM(16, "%4i empty audio urb frames\n", \ |
| 375 | peasycap->audio_mt); |
| 376 | peasycap->audio_mt = 0; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | p1 = (__u8 *)(purb->transfer_buffer + \ |
| 380 | purb->iso_frame_desc[i].offset); |
| 381 | |
| 382 | leap = 0; |
| 383 | p1 += leap; |
| 384 | more -= leap; |
| 385 | /*---------------------------------------------------------------------------*/ |
| 386 | /* |
| 387 | * COPY more BYTES FROM ISOC BUFFER TO AUDIO BUFFER, |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 388 | * CONVERTING 8-BIT MONO TO 16-BIT SIGNED LITTLE-ENDIAN SAMPLES IF NECESSARY |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 389 | */ |
| 390 | /*---------------------------------------------------------------------------*/ |
| 391 | while (more) { |
| 392 | if (0 > more) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 393 | SAM("easysnd_complete: MISTAKE: " \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 394 | "more is negative\n"); |
| 395 | return; |
| 396 | } |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 397 | if (peasycap->audio_buffer_page_many <= \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 398 | peasycap->audio_fill) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 399 | SAM("ERROR: bad " \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 400 | "peasycap->audio_fill\n"); |
| 401 | return; |
| 402 | } |
| 403 | |
| 404 | paudio_buffer = &peasycap->audio_buffer\ |
| 405 | [peasycap->audio_fill]; |
| 406 | if (PAGE_SIZE < (paudio_buffer->pto - \ |
| 407 | paudio_buffer->pgo)) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 408 | SAM("ERROR: bad paudio_buffer->pto\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 409 | return; |
| 410 | } |
| 411 | if (PAGE_SIZE == (paudio_buffer->pto - \ |
| 412 | paudio_buffer->pgo)) { |
| 413 | |
| 414 | #if defined(TESTTONE) |
| 415 | easysnd_testtone(peasycap, \ |
| 416 | peasycap->audio_fill); |
| 417 | #endif /*TESTTONE*/ |
| 418 | |
| 419 | paudio_buffer->pto = \ |
| 420 | paudio_buffer->pgo; |
| 421 | (peasycap->audio_fill)++; |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 422 | if (peasycap->\ |
| 423 | audio_buffer_page_many <= \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 424 | peasycap->audio_fill) |
| 425 | peasycap->audio_fill = 0; |
| 426 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 427 | JOM(12, "bumped peasycap->" \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 428 | "audio_fill to %i\n", \ |
| 429 | peasycap->audio_fill); |
| 430 | |
| 431 | paudio_buffer = &peasycap->\ |
| 432 | audio_buffer\ |
| 433 | [peasycap->audio_fill]; |
| 434 | paudio_buffer->pto = \ |
| 435 | paudio_buffer->pgo; |
| 436 | |
| 437 | if (!(peasycap->audio_fill % \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 438 | peasycap->\ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 439 | audio_pages_per_fragment)) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 440 | JOM(12, "wakeup call on wq_" \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 441 | "audio, %i=frag reading %i" \ |
| 442 | "=fragment fill\n", \ |
| 443 | (peasycap->audio_read / \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 444 | peasycap->\ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 445 | audio_pages_per_fragment), \ |
| 446 | (peasycap->audio_fill / \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 447 | peasycap->\ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 448 | audio_pages_per_fragment)); |
| 449 | wake_up_interruptible\ |
| 450 | (&(peasycap->wq_audio)); |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | much = PAGE_SIZE - (int)(paudio_buffer->pto -\ |
| 455 | paudio_buffer->pgo); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 456 | |
| 457 | if (false == peasycap->microphone) { |
| 458 | if (much > more) |
| 459 | much = more; |
| 460 | |
| 461 | memcpy(paudio_buffer->pto, p1, much); |
| 462 | p1 += much; |
| 463 | more -= much; |
| 464 | } else { |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 465 | #if defined(UPSAMPLE) |
| 466 | if (much % 16) |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 467 | JOM(8, "MISTAKE? much" \ |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 468 | " is not divisible by 16\n"); |
| 469 | if (much > (16 * \ |
| 470 | more)) |
| 471 | much = 16 * \ |
| 472 | more; |
| 473 | p2 = (__u8 *)paudio_buffer->pto; |
| 474 | |
| 475 | for (j = 0; j < (much/16); j++) { |
| 476 | newaudio = ((int) *p1) - 128; |
| 477 | newaudio = 128 * \ |
| 478 | newaudio; |
| 479 | |
| 480 | delta = (newaudio - oldaudio) \ |
| 481 | / 4; |
| 482 | s16 = oldaudio + delta; |
| 483 | |
| 484 | for (k = 0; k < 4; k++) { |
| 485 | *p2 = (0x00FF & s16); |
| 486 | *(p2 + 1) = (0xFF00 & \ |
| 487 | s16) >> 8; |
| 488 | p2 += 2; |
| 489 | *p2 = (0x00FF & s16); |
| 490 | *(p2 + 1) = (0xFF00 & \ |
| 491 | s16) >> 8; |
| 492 | p2 += 2; |
| 493 | |
| 494 | s16 += delta; |
| 495 | } |
| 496 | p1++; |
| 497 | more--; |
| 498 | oldaudio = s16; |
| 499 | } |
| 500 | #else |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 501 | if (much > (2 * more)) |
| 502 | much = 2 * more; |
| 503 | p2 = (__u8 *)paudio_buffer->pto; |
| 504 | |
| 505 | for (j = 0; j < (much / 2); j++) { |
| 506 | s16 = ((int) *p1) - 128; |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 507 | s16 = 128 * \ |
| 508 | s16; |
| 509 | *p2 = (0x00FF & s16); |
| 510 | *(p2 + 1) = (0xFF00 & s16) >> \ |
| 511 | 8; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 512 | p1++; p2 += 2; |
| 513 | more--; |
| 514 | } |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 515 | #endif /*UPSAMPLE*/ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 516 | } |
| 517 | (paudio_buffer->pto) += much; |
| 518 | } |
| 519 | } |
| 520 | } else { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 521 | JOM(12, "discarding audio samples because " \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 522 | "%i=purb->iso_frame_desc[i].status\n", \ |
| 523 | purb->iso_frame_desc[i].status); |
| 524 | } |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 525 | |
| 526 | #if defined(UPSAMPLE) |
| 527 | peasycap->oldaudio = oldaudio; |
| 528 | #endif /*UPSAMPLE*/ |
| 529 | |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 530 | } |
| 531 | /*---------------------------------------------------------------------------*/ |
| 532 | /* |
| 533 | * RESUBMIT THIS URB AFTER NO ERROR |
| 534 | */ |
| 535 | /*---------------------------------------------------------------------------*/ |
| 536 | if (peasycap->audio_isoc_streaming) { |
| 537 | rc = usb_submit_urb(purb, GFP_ATOMIC); |
| 538 | if (0 != rc) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 539 | if (-ENODEV != rc) { |
| 540 | SAM("ERROR: while %i=audio_idle, " \ |
| 541 | "usb_submit_urb() failed " \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 542 | "with rc:\n", peasycap->audio_idle); |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 543 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 544 | switch (rc) { |
| 545 | case -ENOMEM: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 546 | SAM("-ENOMEM\n"); |
| 547 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 548 | } |
| 549 | case -ENODEV: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 550 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 551 | } |
| 552 | case -ENXIO: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 553 | SAM("-ENXIO\n"); |
| 554 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 555 | } |
| 556 | case -EINVAL: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 557 | SAM("-EINVAL\n"); |
| 558 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 559 | } |
| 560 | case -EAGAIN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 561 | SAM("-EAGAIN\n"); |
| 562 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 563 | } |
| 564 | case -EFBIG: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 565 | SAM("-EFBIG\n"); |
| 566 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 567 | } |
| 568 | case -EPIPE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 569 | SAM("-EPIPE\n"); |
| 570 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 571 | } |
| 572 | case -EMSGSIZE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 573 | SAM("-EMSGSIZE\n"); |
| 574 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 575 | } |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 576 | case -ENOSPC: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 577 | SAM("-ENOSPC\n"); |
| 578 | break; |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 579 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 580 | default: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 581 | SAM("unknown error: 0x%08X\n", rc); |
| 582 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 583 | } |
| 584 | } |
| 585 | } |
| 586 | } |
| 587 | return; |
| 588 | } |
| 589 | /*****************************************************************************/ |
| 590 | /*---------------------------------------------------------------------------*/ |
| 591 | /* |
| 592 | * THE AUDIO URBS ARE SUBMITTED AT THIS EARLY STAGE SO THAT IT IS POSSIBLE TO |
| 593 | * STREAM FROM /dev/easysnd1 WITH SIMPLE PROGRAMS SUCH AS cat WHICH DO NOT |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 594 | * HAVE AN IOCTL INTERFACE. |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 595 | */ |
| 596 | /*---------------------------------------------------------------------------*/ |
| 597 | int |
| 598 | easysnd_open(struct inode *inode, struct file *file) |
| 599 | { |
| 600 | struct usb_interface *pusb_interface; |
| 601 | struct easycap *peasycap; |
| 602 | int subminor, rc; |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 603 | /*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/ |
| 604 | #if defined(EASYCAP_IS_VIDEODEV_CLIENT) |
| 605 | #if defined(EASYCAP_NEEDS_V4L2_DEVICE_H) |
| 606 | struct v4l2_device *pv4l2_device; |
| 607 | #endif /*EASYCAP_NEEDS_V4L2_DEVICE_H*/ |
| 608 | #endif /*EASYCAP_IS_VIDEODEV_CLIENT*/ |
| 609 | /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 610 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 611 | JOT(4, "begins\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 612 | |
| 613 | subminor = iminor(inode); |
| 614 | |
| 615 | pusb_interface = usb_find_interface(&easycap_usb_driver, subminor); |
| 616 | if (NULL == pusb_interface) { |
| 617 | SAY("ERROR: pusb_interface is NULL\n"); |
| 618 | SAY("ending unsuccessfully\n"); |
| 619 | return -1; |
| 620 | } |
| 621 | peasycap = usb_get_intfdata(pusb_interface); |
| 622 | if (NULL == peasycap) { |
| 623 | SAY("ERROR: peasycap is NULL\n"); |
| 624 | SAY("ending unsuccessfully\n"); |
| 625 | return -1; |
| 626 | } |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 627 | /*---------------------------------------------------------------------------*/ |
| 628 | #if (!defined(EASYCAP_IS_VIDEODEV_CLIENT)) |
| 629 | # |
| 630 | /*vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv*/ |
| 631 | #else |
| 632 | #if defined(EASYCAP_NEEDS_V4L2_DEVICE_H) |
| 633 | /*---------------------------------------------------------------------------*/ |
| 634 | /* |
| 635 | * SOME VERSIONS OF THE videodev MODULE OVERWRITE THE DATA WHICH HAS |
| 636 | * BEEN WRITTEN BY THE CALL TO usb_set_intfdata() IN easycap_usb_probe(), |
| 637 | * REPLACING IT WITH A POINTER TO THE EMBEDDED v4l2_device STRUCTURE. |
| 638 | * TO DETECT THIS, THE STRING IN THE easycap.telltale[] BUFFER IS CHECKED. |
| 639 | */ |
| 640 | /*---------------------------------------------------------------------------*/ |
| 641 | if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) { |
| 642 | pv4l2_device = usb_get_intfdata(pusb_interface); |
| 643 | if ((struct v4l2_device *)NULL == pv4l2_device) { |
| 644 | SAY("ERROR: pv4l2_device is NULL\n"); |
| 645 | return -EFAULT; |
| 646 | } |
| 647 | peasycap = (struct easycap *) \ |
| 648 | container_of(pv4l2_device, struct easycap, v4l2_device); |
| 649 | } |
| 650 | #endif /*EASYCAP_NEEDS_V4L2_DEVICE_H*/ |
| 651 | # |
| 652 | #endif /*EASYCAP_IS_VIDEODEV_CLIENT*/ |
| 653 | /*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/ |
| 654 | /*---------------------------------------------------------------------------*/ |
| 655 | if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) { |
| 656 | SAY("ERROR: bad peasycap: 0x%08lX\n", (unsigned long int) peasycap); |
| 657 | return -EFAULT; |
| 658 | } |
| 659 | /*---------------------------------------------------------------------------*/ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 660 | |
| 661 | file->private_data = peasycap; |
| 662 | |
| 663 | /*---------------------------------------------------------------------------*/ |
| 664 | /* |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 665 | * INITIALIZATION |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 666 | */ |
| 667 | /*---------------------------------------------------------------------------*/ |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 668 | JOM(4, "starting initialization\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 669 | |
| 670 | if ((struct usb_device *)NULL == peasycap->pusb_device) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 671 | SAM("ERROR: peasycap->pusb_device is NULL\n"); |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 672 | return -ENODEV; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 673 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 674 | JOM(16, "0x%08lX=peasycap->pusb_device\n", (long int)peasycap->pusb_device); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 675 | |
| 676 | rc = audio_setup(peasycap); |
| 677 | if (0 <= rc) |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 678 | JOM(8, "audio_setup() returned %i\n", rc); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 679 | else |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 680 | JOM(8, "easysnd open(): ERROR: audio_setup() returned %i\n", rc); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 681 | |
| 682 | if ((struct usb_device *)NULL == peasycap->pusb_device) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 683 | SAM("ERROR: peasycap->pusb_device has become NULL\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 684 | return -ENODEV; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 685 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 686 | /*---------------------------------------------------------------------------*/ |
| 687 | if ((struct usb_device *)NULL == peasycap->pusb_device) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 688 | SAM("ERROR: peasycap->pusb_device has become NULL\n"); |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 689 | return -ENODEV; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 690 | } |
| 691 | rc = usb_set_interface(peasycap->pusb_device, peasycap->audio_interface, \ |
| 692 | peasycap->audio_altsetting_on); |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 693 | JOM(8, "usb_set_interface(.,%i,%i) returned %i\n", peasycap->audio_interface, \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 694 | peasycap->audio_altsetting_on, rc); |
| 695 | |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 696 | rc = wakeup_device(peasycap->pusb_device); |
| 697 | if (0 == rc) |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 698 | JOM(8, "wakeup_device() returned %i\n", rc); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 699 | else |
Mike Thomas | f36bc37 | 2010-11-07 20:00:35 +0000 | [diff] [blame] | 700 | JOM(8, "ERROR: wakeup_device() returned %i\n", rc); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 701 | |
Mike Thomas | f36bc37 | 2010-11-07 20:00:35 +0000 | [diff] [blame] | 702 | peasycap->audio_eof = 0; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 703 | peasycap->audio_idle = 0; |
| 704 | |
| 705 | peasycap->timeval1.tv_sec = 0; |
| 706 | peasycap->timeval1.tv_usec = 0; |
| 707 | |
Mike Thomas | f36bc37 | 2010-11-07 20:00:35 +0000 | [diff] [blame] | 708 | submit_audio_urbs(peasycap); |
| 709 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 710 | JOM(4, "finished initialization\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 711 | return 0; |
| 712 | } |
| 713 | /*****************************************************************************/ |
| 714 | int |
| 715 | easysnd_release(struct inode *inode, struct file *file) |
| 716 | { |
| 717 | struct easycap *peasycap; |
| 718 | |
| 719 | JOT(4, "begins\n"); |
| 720 | |
Joe Perches | ba952d8 | 2010-07-12 13:50:10 -0700 | [diff] [blame] | 721 | peasycap = file->private_data; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 722 | if (NULL == peasycap) { |
| 723 | SAY("ERROR: peasycap is NULL.\n"); |
| 724 | return -EFAULT; |
| 725 | } |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 726 | if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) { |
| 727 | SAY("ERROR: bad peasycap: 0x%08lX\n", (unsigned long int) peasycap); |
| 728 | return -EFAULT; |
| 729 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 730 | if (0 != kill_audio_urbs(peasycap)) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 731 | SAM("ERROR: kill_audio_urbs() failed\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 732 | return -EFAULT; |
| 733 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 734 | JOM(4, "ending successfully\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 735 | return 0; |
| 736 | } |
| 737 | /*****************************************************************************/ |
| 738 | ssize_t |
| 739 | easysnd_read(struct file *file, char __user *puserspacebuffer, \ |
| 740 | size_t kount, loff_t *poff) |
| 741 | { |
| 742 | struct timeval timeval; |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 743 | long long int above, below, mean; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 744 | struct signed_div_result sdr; |
| 745 | unsigned char *p0; |
| 746 | long int kount1, more, rc, l0, lm; |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 747 | int fragment, kd; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 748 | struct easycap *peasycap; |
| 749 | struct data_buffer *pdata_buffer; |
| 750 | size_t szret; |
| 751 | |
| 752 | /*---------------------------------------------------------------------------*/ |
| 753 | /* |
| 754 | * DO A BLOCKING READ TO TRANSFER DATA TO USER SPACE. |
| 755 | * |
| 756 | ****************************************************************************** |
| 757 | ***** N.B. IF THIS FUNCTION RETURNS 0, NOTHING IS SEEN IN USER SPACE. ****** |
| 758 | ***** THIS CONDITION SIGNIFIES END-OF-FILE. ****** |
| 759 | ****************************************************************************** |
| 760 | */ |
| 761 | /*---------------------------------------------------------------------------*/ |
| 762 | |
| 763 | JOT(8, "===== easysnd_read(): kount=%i, *poff=%i\n", (int)kount, (int)(*poff)); |
| 764 | |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 765 | if (NULL == file) { |
| 766 | SAY("ERROR: file is NULL\n"); |
| 767 | return -ERESTARTSYS; |
| 768 | } |
| 769 | peasycap = file->private_data; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 770 | if (NULL == peasycap) { |
| 771 | SAY("ERROR in easysnd_read(): peasycap is NULL\n"); |
| 772 | return -EFAULT; |
| 773 | } |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 774 | if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) { |
| 775 | SAY("ERROR: bad peasycap: 0x%08lX\n", (unsigned long int) peasycap); |
| 776 | return -EFAULT; |
| 777 | } |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 778 | if (NULL == peasycap->pusb_device) { |
| 779 | SAY("ERROR in easysnd_read(): peasycap->pusb_device is NULL\n"); |
| 780 | return -EFAULT; |
| 781 | } |
| 782 | kd = isdongle(peasycap); |
| 783 | if (0 <= kd && DONGLE_MANY > kd) { |
| 784 | if (mutex_lock_interruptible(&(easycap_dongle[kd].mutex_audio))) { |
| 785 | SAY("ERROR: cannot lock easycap_dongle[%i].mutex_audio\n", kd); |
| 786 | return -ERESTARTSYS; |
| 787 | } |
| 788 | JOM(4, "locked easycap_dongle[%i].mutex_audio\n", kd); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 789 | /*---------------------------------------------------------------------------*/ |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 790 | /* |
| 791 | * MEANWHILE, easycap_usb_disconnect() MAY HAVE FREED POINTER peasycap, |
| 792 | * IN WHICH CASE A REPEAT CALL TO isdongle() WILL FAIL. |
| 793 | * IF NECESSARY, BAIL OUT. |
| 794 | */ |
| 795 | /*---------------------------------------------------------------------------*/ |
| 796 | if (kd != isdongle(peasycap)) |
| 797 | return -ERESTARTSYS; |
| 798 | if (NULL == file) { |
| 799 | SAY("ERROR: file is NULL\n"); |
| 800 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
| 801 | return -ERESTARTSYS; |
| 802 | } |
| 803 | peasycap = file->private_data; |
| 804 | if (NULL == peasycap) { |
| 805 | SAY("ERROR: peasycap is NULL\n"); |
| 806 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
| 807 | return -ERESTARTSYS; |
| 808 | } |
Mike Thomas | 268dfed | 2010-11-07 20:11:36 +0000 | [diff] [blame] | 809 | if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) { |
| 810 | SAY("ERROR: bad peasycap: 0x%08lX\n", \ |
| 811 | (unsigned long int) peasycap); |
| 812 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
| 813 | return -ERESTARTSYS; |
| 814 | } |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 815 | if (NULL == peasycap->pusb_device) { |
| 816 | SAM("ERROR: peasycap->pusb_device is NULL\n"); |
| 817 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
| 818 | return -ERESTARTSYS; |
| 819 | } |
| 820 | } else { |
| 821 | /*---------------------------------------------------------------------------*/ |
| 822 | /* |
| 823 | * IF easycap_usb_disconnect() HAS ALREADY FREED POINTER peasycap BEFORE THE |
| 824 | * ATTEMPT TO ACQUIRE THE SEMAPHORE, isdongle() WILL HAVE FAILED. BAIL OUT. |
| 825 | */ |
| 826 | /*---------------------------------------------------------------------------*/ |
| 827 | return -ERESTARTSYS; |
| 828 | } |
| 829 | /*---------------------------------------------------------------------------*/ |
| 830 | if (file->f_flags & O_NONBLOCK) |
| 831 | JOT(16, "NONBLOCK kount=%i, *poff=%i\n", (int)kount, (int)(*poff)); |
| 832 | else |
| 833 | JOT(8, "BLOCKING kount=%i, *poff=%i\n", (int)kount, (int)(*poff)); |
| 834 | |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 835 | if ((0 > peasycap->audio_read) || \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 836 | (peasycap->audio_buffer_page_many <= peasycap->audio_read)) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 837 | SAM("ERROR: peasycap->audio_read out of range\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 838 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 839 | return -EFAULT; |
| 840 | } |
| 841 | pdata_buffer = &peasycap->audio_buffer[peasycap->audio_read]; |
| 842 | if ((struct data_buffer *)NULL == pdata_buffer) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 843 | SAM("ERROR: pdata_buffer is NULL\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 844 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 845 | return -EFAULT; |
| 846 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 847 | JOM(12, "before wait, %i=frag read %i=frag fill\n", \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 848 | (peasycap->audio_read / peasycap->audio_pages_per_fragment), \ |
| 849 | (peasycap->audio_fill / peasycap->audio_pages_per_fragment)); |
| 850 | fragment = (peasycap->audio_read / peasycap->audio_pages_per_fragment); |
| 851 | while ((fragment == (peasycap->audio_fill / \ |
| 852 | peasycap->audio_pages_per_fragment)) || \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 853 | (0 == (PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo)))) { |
| 854 | if (file->f_flags & O_NONBLOCK) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 855 | JOM(16, "returning -EAGAIN as instructed\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 856 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 857 | return -EAGAIN; |
| 858 | } |
| 859 | rc = wait_event_interruptible(peasycap->wq_audio, \ |
| 860 | (peasycap->audio_idle || peasycap->audio_eof || \ |
| 861 | ((fragment != (peasycap->audio_fill / \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 862 | peasycap->audio_pages_per_fragment)) && \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 863 | (0 < (PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo)))))); |
| 864 | if (0 != rc) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 865 | SAM("aborted by signal\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 866 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 867 | return -ERESTARTSYS; |
| 868 | } |
| 869 | if (peasycap->audio_eof) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 870 | JOM(8, "returning 0 because %i=audio_eof\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 871 | peasycap->audio_eof); |
| 872 | kill_audio_urbs(peasycap); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 873 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 874 | return 0; |
| 875 | } |
| 876 | if (peasycap->audio_idle) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 877 | JOM(16, "returning 0 because %i=audio_idle\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 878 | peasycap->audio_idle); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 879 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 880 | return 0; |
| 881 | } |
| 882 | if (!peasycap->audio_isoc_streaming) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 883 | JOM(16, "returning 0 because audio urbs not streaming\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 884 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 885 | return 0; |
| 886 | } |
| 887 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 888 | JOM(12, "after wait, %i=frag read %i=frag fill\n", \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 889 | (peasycap->audio_read / peasycap->audio_pages_per_fragment), \ |
| 890 | (peasycap->audio_fill / peasycap->audio_pages_per_fragment)); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 891 | szret = (size_t)0; |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 892 | while (fragment == (peasycap->audio_read / \ |
| 893 | peasycap->audio_pages_per_fragment)) { |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 894 | if (NULL == pdata_buffer->pgo) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 895 | SAM("ERROR: pdata_buffer->pgo is NULL\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 896 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 897 | return -EFAULT; |
| 898 | } |
| 899 | if (NULL == pdata_buffer->pto) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 900 | SAM("ERROR: pdata_buffer->pto is NULL\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 901 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 902 | return -EFAULT; |
| 903 | } |
| 904 | kount1 = PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo); |
| 905 | if (0 > kount1) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 906 | SAM("easysnd_read: MISTAKE: kount1 is negative\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 907 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 908 | return -ERESTARTSYS; |
| 909 | } |
| 910 | if (!kount1) { |
| 911 | (peasycap->audio_read)++; |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 912 | if (peasycap->audio_buffer_page_many <= peasycap->audio_read) |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 913 | peasycap->audio_read = 0; |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 914 | JOM(12, "bumped peasycap->audio_read to %i\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 915 | peasycap->audio_read); |
| 916 | |
| 917 | if (fragment != (peasycap->audio_read / \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 918 | peasycap->audio_pages_per_fragment)) |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 919 | break; |
| 920 | |
| 921 | if ((0 > peasycap->audio_read) || \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 922 | (peasycap->audio_buffer_page_many <= \ |
| 923 | peasycap->audio_read)) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 924 | SAM("ERROR: peasycap->audio_read out of range\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 925 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 926 | return -EFAULT; |
| 927 | } |
| 928 | pdata_buffer = &peasycap->audio_buffer[peasycap->audio_read]; |
| 929 | if ((struct data_buffer *)NULL == pdata_buffer) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 930 | SAM("ERROR: pdata_buffer is NULL\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 931 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 932 | return -EFAULT; |
| 933 | } |
| 934 | if (NULL == pdata_buffer->pgo) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 935 | SAM("ERROR: pdata_buffer->pgo is NULL\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 936 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 937 | return -EFAULT; |
| 938 | } |
| 939 | if (NULL == pdata_buffer->pto) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 940 | SAM("ERROR: pdata_buffer->pto is NULL\n"); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 941 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 942 | return -EFAULT; |
| 943 | } |
| 944 | kount1 = PAGE_SIZE - (pdata_buffer->pto - pdata_buffer->pgo); |
| 945 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 946 | JOM(12, "ready to send %li bytes\n", (long int) kount1); |
| 947 | JOM(12, "still to send %li bytes\n", (long int) kount); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 948 | more = kount1; |
| 949 | if (more > kount) |
| 950 | more = kount; |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 951 | JOM(12, "agreed to send %li bytes from page %i\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 952 | more, peasycap->audio_read); |
| 953 | if (!more) |
| 954 | break; |
| 955 | |
| 956 | /*---------------------------------------------------------------------------*/ |
| 957 | /* |
| 958 | * ACCUMULATE DYNAMIC-RANGE INFORMATION |
| 959 | */ |
| 960 | /*---------------------------------------------------------------------------*/ |
| 961 | p0 = (unsigned char *)pdata_buffer->pgo; l0 = 0; lm = more/2; |
| 962 | while (l0 < lm) { |
| 963 | SUMMER(p0, &peasycap->audio_sample, &peasycap->audio_niveau, \ |
| 964 | &peasycap->audio_square); l0++; p0 += 2; |
| 965 | } |
| 966 | /*---------------------------------------------------------------------------*/ |
| 967 | rc = copy_to_user(puserspacebuffer, pdata_buffer->pto, more); |
| 968 | if (0 != rc) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 969 | SAM("ERROR: copy_to_user() returned %li\n", rc); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 970 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 971 | return -EFAULT; |
| 972 | } |
| 973 | *poff += (loff_t)more; |
| 974 | szret += (size_t)more; |
| 975 | pdata_buffer->pto += more; |
| 976 | puserspacebuffer += more; |
| 977 | kount -= (size_t)more; |
| 978 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 979 | JOM(12, "after read, %i=frag read %i=frag fill\n", \ |
Mike Thomas | 3d423e9 | 2010-07-11 10:51:13 +0100 | [diff] [blame] | 980 | (peasycap->audio_read / peasycap->audio_pages_per_fragment), \ |
| 981 | (peasycap->audio_fill / peasycap->audio_pages_per_fragment)); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 982 | if (kount < 0) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 983 | SAM("MISTAKE: %li=kount %li=szret\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 984 | (long int)kount, (long int)szret); |
| 985 | } |
| 986 | /*---------------------------------------------------------------------------*/ |
| 987 | /* |
| 988 | * CALCULATE DYNAMIC RANGE FOR (VAPOURWARE) AUTOMATIC VOLUME CONTROL |
| 989 | */ |
| 990 | /*---------------------------------------------------------------------------*/ |
| 991 | if (peasycap->audio_sample) { |
| 992 | below = peasycap->audio_sample; |
| 993 | above = peasycap->audio_square; |
| 994 | sdr = signed_div(above, below); |
| 995 | above = sdr.quotient; |
| 996 | mean = peasycap->audio_niveau; |
| 997 | sdr = signed_div(mean, peasycap->audio_sample); |
| 998 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 999 | JOM(8, "%8lli=mean %8lli=meansquare after %lli samples, =>\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1000 | sdr.quotient, above, peasycap->audio_sample); |
| 1001 | |
| 1002 | sdr = signed_div(above, 32768); |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1003 | JOM(8, "audio dynamic range is roughly %lli\n", sdr.quotient); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1004 | } |
| 1005 | /*---------------------------------------------------------------------------*/ |
| 1006 | /* |
| 1007 | * UPDATE THE AUDIO CLOCK |
| 1008 | */ |
| 1009 | /*---------------------------------------------------------------------------*/ |
| 1010 | do_gettimeofday(&timeval); |
| 1011 | if (!peasycap->timeval1.tv_sec) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1012 | peasycap->audio_bytes = 0; |
| 1013 | peasycap->timeval3 = timeval; |
| 1014 | peasycap->timeval1 = peasycap->timeval3; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1015 | sdr.quotient = 192000; |
| 1016 | } else { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1017 | peasycap->audio_bytes += (long long int) szret; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1018 | below = ((long long int)(1000000)) * \ |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1019 | ((long long int)(timeval.tv_sec - \ |
| 1020 | peasycap->timeval3.tv_sec)) + \ |
| 1021 | (long long int)(timeval.tv_usec - peasycap->timeval3.tv_usec); |
| 1022 | above = 1000000 * ((long long int) peasycap->audio_bytes); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1023 | |
| 1024 | if (below) |
| 1025 | sdr = signed_div(above, below); |
| 1026 | else |
| 1027 | sdr.quotient = 192000; |
| 1028 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1029 | JOM(8, "audio streaming at %lli bytes/second\n", sdr.quotient); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1030 | peasycap->dnbydt = sdr.quotient; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1031 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1032 | JOM(8, "returning %li\n", (long int)szret); |
Mike Thomas | ae59dad | 2010-11-07 20:09:19 +0000 | [diff] [blame] | 1033 | mutex_unlock(&easycap_dongle[kd].mutex_audio); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1034 | return szret; |
| 1035 | } |
| 1036 | /*****************************************************************************/ |
| 1037 | /*---------------------------------------------------------------------------*/ |
| 1038 | /* |
| 1039 | * SUBMIT ALL AUDIO URBS. |
| 1040 | */ |
| 1041 | /*---------------------------------------------------------------------------*/ |
| 1042 | int |
| 1043 | submit_audio_urbs(struct easycap *peasycap) |
| 1044 | { |
| 1045 | struct data_urb *pdata_urb; |
| 1046 | struct urb *purb; |
| 1047 | struct list_head *plist_head; |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1048 | int j, isbad, nospc, m, rc; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1049 | int isbuf; |
| 1050 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1051 | if (NULL == peasycap) { |
| 1052 | SAY("ERROR: peasycap is NULL\n"); |
| 1053 | return -EFAULT; |
| 1054 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1055 | if ((struct list_head *)NULL == peasycap->purb_audio_head) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1056 | SAM("ERROR: peasycap->urb_audio_head uninitialized\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1057 | return -EFAULT; |
| 1058 | } |
| 1059 | if ((struct usb_device *)NULL == peasycap->pusb_device) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1060 | SAM("ERROR: peasycap->pusb_device is NULL\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1061 | return -EFAULT; |
| 1062 | } |
| 1063 | if (!peasycap->audio_isoc_streaming) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1064 | JOM(4, "initial submission of all audio urbs\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1065 | rc = usb_set_interface(peasycap->pusb_device, |
| 1066 | peasycap->audio_interface, \ |
| 1067 | peasycap->audio_altsetting_on); |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1068 | JOM(8, "usb_set_interface(.,%i,%i) returned %i\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1069 | peasycap->audio_interface, \ |
| 1070 | peasycap->audio_altsetting_on, rc); |
| 1071 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1072 | isbad = 0; nospc = 0; m = 0; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1073 | list_for_each(plist_head, (peasycap->purb_audio_head)) { |
| 1074 | pdata_urb = list_entry(plist_head, struct data_urb, list_head); |
| 1075 | if (NULL != pdata_urb) { |
| 1076 | purb = pdata_urb->purb; |
| 1077 | if (NULL != purb) { |
| 1078 | isbuf = pdata_urb->isbuf; |
| 1079 | |
| 1080 | purb->interval = 1; |
| 1081 | purb->dev = peasycap->pusb_device; |
| 1082 | purb->pipe = \ |
| 1083 | usb_rcvisocpipe(peasycap->pusb_device,\ |
| 1084 | peasycap->audio_endpointnumber); |
| 1085 | purb->transfer_flags = URB_ISO_ASAP; |
| 1086 | purb->transfer_buffer = \ |
| 1087 | peasycap->audio_isoc_buffer[isbuf].pgo; |
| 1088 | purb->transfer_buffer_length = \ |
| 1089 | peasycap->audio_isoc_buffer_size; |
| 1090 | purb->complete = easysnd_complete; |
| 1091 | purb->context = peasycap; |
| 1092 | purb->start_frame = 0; |
| 1093 | purb->number_of_packets = \ |
| 1094 | peasycap->audio_isoc_framesperdesc; |
| 1095 | for (j = 0; j < peasycap->\ |
| 1096 | audio_isoc_framesperdesc; \ |
| 1097 | j++) { |
| 1098 | purb->iso_frame_desc[j].offset = j * \ |
| 1099 | peasycap->\ |
| 1100 | audio_isoc_maxframesize; |
| 1101 | purb->iso_frame_desc[j].length = \ |
| 1102 | peasycap->\ |
| 1103 | audio_isoc_maxframesize; |
| 1104 | } |
| 1105 | |
| 1106 | rc = usb_submit_urb(purb, GFP_KERNEL); |
| 1107 | if (0 != rc) { |
| 1108 | isbad++; |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1109 | SAM("ERROR: usb_submit_urb() failed" \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1110 | " for urb with rc:\n"); |
| 1111 | switch (rc) { |
| 1112 | case -ENOMEM: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1113 | SAM("-ENOMEM\n"); |
| 1114 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1115 | } |
| 1116 | case -ENODEV: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1117 | SAM("-ENODEV\n"); |
| 1118 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1119 | } |
| 1120 | case -ENXIO: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1121 | SAM("-ENXIO\n"); |
| 1122 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1123 | } |
| 1124 | case -EINVAL: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1125 | SAM("-EINVAL\n"); |
| 1126 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1127 | } |
| 1128 | case -EAGAIN: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1129 | SAM("-EAGAIN\n"); |
| 1130 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1131 | } |
| 1132 | case -EFBIG: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1133 | SAM("-EFBIG\n"); |
| 1134 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1135 | } |
| 1136 | case -EPIPE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1137 | SAM("-EPIPE\n"); |
| 1138 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1139 | } |
| 1140 | case -EMSGSIZE: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1141 | SAM("-EMSGSIZE\n"); |
| 1142 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1143 | } |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 1144 | case -ENOSPC: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1145 | nospc++; |
| 1146 | break; |
Mike Thomas | 7ebc876 | 2010-07-11 10:54:51 +0100 | [diff] [blame] | 1147 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1148 | default: { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1149 | SAM("unknown error code %i\n",\ |
| 1150 | rc); |
| 1151 | break; |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1152 | } |
| 1153 | } |
| 1154 | } else { |
| 1155 | m++; |
| 1156 | } |
| 1157 | } else { |
| 1158 | isbad++; |
| 1159 | } |
| 1160 | } else { |
| 1161 | isbad++; |
| 1162 | } |
| 1163 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1164 | if (nospc) { |
| 1165 | SAM("-ENOSPC=usb_submit_urb() for %i urbs\n", nospc); |
| 1166 | SAM("..... possibly inadequate USB bandwidth\n"); |
| 1167 | peasycap->audio_eof = 1; |
| 1168 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1169 | if (isbad) { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1170 | JOM(4, "attempting cleanup instead of submitting\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1171 | list_for_each(plist_head, (peasycap->purb_audio_head)) { |
| 1172 | pdata_urb = list_entry(plist_head, struct data_urb, \ |
| 1173 | list_head); |
| 1174 | if (NULL != pdata_urb) { |
| 1175 | purb = pdata_urb->purb; |
| 1176 | if (NULL != purb) |
| 1177 | usb_kill_urb(purb); |
| 1178 | } |
| 1179 | } |
| 1180 | peasycap->audio_isoc_streaming = 0; |
| 1181 | } else { |
| 1182 | peasycap->audio_isoc_streaming = 1; |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1183 | JOM(4, "submitted %i audio urbs\n", m); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1184 | } |
| 1185 | } else |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1186 | JOM(4, "already streaming audio urbs\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1187 | |
| 1188 | return 0; |
| 1189 | } |
| 1190 | /*****************************************************************************/ |
| 1191 | /*---------------------------------------------------------------------------*/ |
| 1192 | /* |
| 1193 | * KILL ALL AUDIO URBS. |
| 1194 | */ |
| 1195 | /*---------------------------------------------------------------------------*/ |
| 1196 | int |
| 1197 | kill_audio_urbs(struct easycap *peasycap) |
| 1198 | { |
| 1199 | int m; |
| 1200 | struct list_head *plist_head; |
| 1201 | struct data_urb *pdata_urb; |
| 1202 | |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1203 | if (NULL == peasycap) { |
| 1204 | SAY("ERROR: peasycap is NULL\n"); |
| 1205 | return -EFAULT; |
| 1206 | } |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1207 | if (peasycap->audio_isoc_streaming) { |
| 1208 | if ((struct list_head *)NULL != peasycap->purb_audio_head) { |
| 1209 | peasycap->audio_isoc_streaming = 0; |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1210 | JOM(4, "killing audio urbs\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1211 | m = 0; |
| 1212 | list_for_each(plist_head, (peasycap->purb_audio_head)) { |
| 1213 | pdata_urb = list_entry(plist_head, struct data_urb, |
| 1214 | list_head); |
| 1215 | if ((struct data_urb *)NULL != pdata_urb) { |
| 1216 | if ((struct urb *)NULL != pdata_urb->purb) { |
| 1217 | usb_kill_urb(pdata_urb->purb); |
| 1218 | m++; |
| 1219 | } |
| 1220 | } |
| 1221 | } |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1222 | JOM(4, "%i audio urbs killed\n", m); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1223 | } else { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1224 | SAM("ERROR: peasycap->purb_audio_head is NULL\n"); |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1225 | return -EFAULT; |
| 1226 | } |
| 1227 | } else { |
Mike Thomas | e68703c | 2010-11-07 19:58:55 +0000 | [diff] [blame] | 1228 | JOM(8, "%i=audio_isoc_streaming, no audio urbs killed\n", \ |
R.M. Thomas | 702422b | 2010-06-18 12:29:49 -0700 | [diff] [blame] | 1229 | peasycap->audio_isoc_streaming); |
| 1230 | } |
| 1231 | return 0; |
| 1232 | } |
| 1233 | /*****************************************************************************/ |