Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * (Tentative) USB Audio Driver for ALSA |
| 3 | * |
| 4 | * Main and PCM part |
| 5 | * |
| 6 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> |
| 7 | * |
| 8 | * Many codes borrowed from audio.c by |
| 9 | * Alan Cox (alan@lxorguk.ukuu.org.uk) |
| 10 | * Thomas Sailer (sailer@ife.ee.ethz.ch) |
| 11 | * |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License as published by |
| 15 | * the Free Software Foundation; either version 2 of the License, or |
| 16 | * (at your option) any later version. |
| 17 | * |
| 18 | * This program is distributed in the hope that it will be useful, |
| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 21 | * GNU General Public License for more details. |
| 22 | * |
| 23 | * You should have received a copy of the GNU General Public License |
| 24 | * along with this program; if not, write to the Free Software |
| 25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 26 | * |
| 27 | * |
| 28 | * NOTES: |
| 29 | * |
| 30 | * - async unlink should be used for avoiding the sleep inside lock. |
| 31 | * 2.4.22 usb-uhci seems buggy for async unlinking and results in |
| 32 | * oops. in such a cse, pass async_unlink=0 option. |
| 33 | * - the linked URBs would be preferred but not used so far because of |
| 34 | * the instability of unlinking. |
| 35 | * - type II is not supported properly. there is no device which supports |
| 36 | * this type *correctly*. SB extigy looks as if it supports, but it's |
| 37 | * indeed an AC3 stream packed in SPDIF frames (i.e. no real AC3 stream). |
| 38 | */ |
| 39 | |
| 40 | |
| 41 | #include <sound/driver.h> |
| 42 | #include <linux/bitops.h> |
| 43 | #include <linux/init.h> |
| 44 | #include <linux/list.h> |
| 45 | #include <linux/slab.h> |
| 46 | #include <linux/string.h> |
| 47 | #include <linux/usb.h> |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 48 | #include <linux/vmalloc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #include <linux/moduleparam.h> |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 50 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #include <sound/core.h> |
| 52 | #include <sound/info.h> |
| 53 | #include <sound/pcm.h> |
| 54 | #include <sound/pcm_params.h> |
| 55 | #include <sound/initval.h> |
| 56 | |
| 57 | #include "usbaudio.h" |
| 58 | |
| 59 | |
| 60 | MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); |
| 61 | MODULE_DESCRIPTION("USB Audio"); |
| 62 | MODULE_LICENSE("GPL"); |
| 63 | MODULE_SUPPORTED_DEVICE("{{Generic,USB Audio}}"); |
| 64 | |
| 65 | |
| 66 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| 67 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| 68 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ |
| 69 | static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Vendor ID for this card */ |
| 70 | static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; /* Product ID for this card */ |
| 71 | static int nrpacks = 4; /* max. number of packets per urb */ |
| 72 | static int async_unlink = 1; |
| 73 | |
| 74 | module_param_array(index, int, NULL, 0444); |
| 75 | MODULE_PARM_DESC(index, "Index value for the USB audio adapter."); |
| 76 | module_param_array(id, charp, NULL, 0444); |
| 77 | MODULE_PARM_DESC(id, "ID string for the USB audio adapter."); |
| 78 | module_param_array(enable, bool, NULL, 0444); |
| 79 | MODULE_PARM_DESC(enable, "Enable USB audio adapter."); |
| 80 | module_param_array(vid, int, NULL, 0444); |
| 81 | MODULE_PARM_DESC(vid, "Vendor ID for the USB audio device."); |
| 82 | module_param_array(pid, int, NULL, 0444); |
| 83 | MODULE_PARM_DESC(pid, "Product ID for the USB audio device."); |
Clemens Ladisch | 71d848c | 2005-08-12 15:18:00 +0200 | [diff] [blame] | 84 | module_param(nrpacks, int, 0644); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | MODULE_PARM_DESC(nrpacks, "Max. number of packets per URB."); |
| 86 | module_param(async_unlink, bool, 0444); |
| 87 | MODULE_PARM_DESC(async_unlink, "Use async unlink mode."); |
| 88 | |
| 89 | |
| 90 | /* |
| 91 | * debug the h/w constraints |
| 92 | */ |
| 93 | /* #define HW_CONST_DEBUG */ |
| 94 | |
| 95 | |
| 96 | /* |
| 97 | * |
| 98 | */ |
| 99 | |
| 100 | #define MAX_PACKS 10 |
| 101 | #define MAX_PACKS_HS (MAX_PACKS * 8) /* in high speed mode */ |
Clemens Ladisch | 15a24c0 | 2005-08-12 08:25:26 +0200 | [diff] [blame] | 102 | #define MAX_URBS 8 |
Clemens Ladisch | 604cf49 | 2005-05-17 09:15:27 +0200 | [diff] [blame] | 103 | #define SYNC_URBS 4 /* always four urbs for sync */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | #define MIN_PACKS_URB 1 /* minimum 1 packet per urb */ |
| 105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | struct audioformat { |
| 107 | struct list_head list; |
| 108 | snd_pcm_format_t format; /* format type */ |
| 109 | unsigned int channels; /* # channels */ |
| 110 | unsigned int fmt_type; /* USB audio format type (1-3) */ |
| 111 | unsigned int frame_size; /* samples per frame for non-audio */ |
| 112 | int iface; /* interface number */ |
| 113 | unsigned char altsetting; /* corresponding alternate setting */ |
| 114 | unsigned char altset_idx; /* array index of altenate setting */ |
| 115 | unsigned char attributes; /* corresponding attributes of cs endpoint */ |
| 116 | unsigned char endpoint; /* endpoint */ |
| 117 | unsigned char ep_attr; /* endpoint attributes */ |
| 118 | unsigned int maxpacksize; /* max. packet size */ |
| 119 | unsigned int rates; /* rate bitmasks */ |
| 120 | unsigned int rate_min, rate_max; /* min/max rates */ |
| 121 | unsigned int nr_rates; /* number of rate table entries */ |
| 122 | unsigned int *rate_table; /* rate table */ |
| 123 | }; |
| 124 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 125 | struct snd_usb_substream; |
| 126 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | struct snd_urb_ctx { |
| 128 | struct urb *urb; |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 129 | unsigned int buffer_size; /* size of data buffer, if data URB */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 130 | struct snd_usb_substream *subs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | int index; /* index for urb array */ |
| 132 | int packets; /* number of packets per urb */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | }; |
| 134 | |
| 135 | struct snd_urb_ops { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 136 | int (*prepare)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); |
| 137 | int (*retire)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); |
| 138 | int (*prepare_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); |
| 139 | int (*retire_sync)(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime, struct urb *u); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | }; |
| 141 | |
| 142 | struct snd_usb_substream { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 143 | struct snd_usb_stream *stream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | struct usb_device *dev; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 145 | struct snd_pcm_substream *pcm_substream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | int direction; /* playback or capture */ |
| 147 | int interface; /* current interface */ |
| 148 | int endpoint; /* assigned endpoint */ |
| 149 | struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ |
| 150 | unsigned int cur_rate; /* current rate (for hw_params callback) */ |
| 151 | unsigned int period_bytes; /* current period bytes (for hw_params callback) */ |
| 152 | unsigned int format; /* USB data format */ |
| 153 | unsigned int datapipe; /* the data i/o pipe */ |
| 154 | unsigned int syncpipe; /* 1 - async out or adaptive in */ |
Clemens Ladisch | 573567e | 2005-06-27 08:17:30 +0200 | [diff] [blame] | 155 | unsigned int datainterval; /* log_2 of data packet interval */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | unsigned int syncinterval; /* P for adaptive mode, 0 otherwise */ |
| 157 | unsigned int freqn; /* nominal sampling rate in fs/fps in Q16.16 format */ |
| 158 | unsigned int freqm; /* momentary sampling rate in fs/fps in Q16.16 format */ |
| 159 | unsigned int freqmax; /* maximum sampling rate, used for buffer management */ |
| 160 | unsigned int phase; /* phase accumulator */ |
| 161 | unsigned int maxpacksize; /* max packet size in bytes */ |
| 162 | unsigned int maxframesize; /* max packet size in frames */ |
| 163 | unsigned int curpacksize; /* current packet size in bytes (for capture) */ |
| 164 | unsigned int curframesize; /* current packet size in frames (for capture) */ |
| 165 | unsigned int fill_max: 1; /* fill max packet size always */ |
| 166 | unsigned int fmt_type; /* USB audio format type (1-3) */ |
Clemens Ladisch | 9624ea8 | 2005-08-15 08:25:24 +0200 | [diff] [blame] | 167 | unsigned int packs_per_ms; /* packets per millisecond (for playback) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | |
| 169 | unsigned int running: 1; /* running status */ |
| 170 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | unsigned int hwptr_done; /* processed frame position in the buffer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | unsigned int transfer_done; /* processed frames since last period update */ |
| 173 | unsigned long active_mask; /* bitmask of active urbs */ |
| 174 | unsigned long unlink_mask; /* bitmask of unlinked urbs */ |
| 175 | |
| 176 | unsigned int nurbs; /* # urbs */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 177 | struct snd_urb_ctx dataurb[MAX_URBS]; /* data urb table */ |
| 178 | struct snd_urb_ctx syncurb[SYNC_URBS]; /* sync urb table */ |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 179 | char *syncbuf; /* sync buffer for all sync URBs */ |
| 180 | dma_addr_t sync_dma; /* DMA address of syncbuf */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | |
| 182 | u64 formats; /* format bitmasks (all or'ed) */ |
| 183 | unsigned int num_formats; /* number of supported audio formats (list) */ |
| 184 | struct list_head fmt_list; /* format list */ |
| 185 | spinlock_t lock; |
| 186 | |
| 187 | struct snd_urb_ops ops; /* callbacks (must be filled at init) */ |
| 188 | }; |
| 189 | |
| 190 | |
| 191 | struct snd_usb_stream { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 192 | struct snd_usb_audio *chip; |
| 193 | struct snd_pcm *pcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | int pcm_index; |
| 195 | unsigned int fmt_type; /* USB audio format type (1-3) */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 196 | struct snd_usb_substream substream[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | struct list_head list; |
| 198 | }; |
| 199 | |
| 200 | |
| 201 | /* |
| 202 | * we keep the snd_usb_audio_t instances by ourselves for merging |
| 203 | * the all interfaces on the same card as one sound device. |
| 204 | */ |
| 205 | |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 206 | static DEFINE_MUTEX(register_mutex); |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 207 | static struct snd_usb_audio *usb_chip[SNDRV_CARDS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | |
| 209 | |
| 210 | /* |
| 211 | * convert a sampling rate into our full speed format (fs/1000 in Q16.16) |
| 212 | * this will overflow at approx 524 kHz |
| 213 | */ |
Jesper Juhl | 77933d7 | 2005-07-27 11:46:09 -0700 | [diff] [blame] | 214 | static inline unsigned get_usb_full_speed_rate(unsigned int rate) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | { |
| 216 | return ((rate << 13) + 62) / 125; |
| 217 | } |
| 218 | |
| 219 | /* |
| 220 | * convert a sampling rate into USB high speed format (fs/8000 in Q16.16) |
| 221 | * this will overflow at approx 4 MHz |
| 222 | */ |
Jesper Juhl | 77933d7 | 2005-07-27 11:46:09 -0700 | [diff] [blame] | 223 | static inline unsigned get_usb_high_speed_rate(unsigned int rate) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | { |
| 225 | return ((rate << 10) + 62) / 125; |
| 226 | } |
| 227 | |
| 228 | /* convert our full speed USB rate into sampling rate in Hz */ |
Jesper Juhl | 77933d7 | 2005-07-27 11:46:09 -0700 | [diff] [blame] | 229 | static inline unsigned get_full_speed_hz(unsigned int usb_rate) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | { |
| 231 | return (usb_rate * 125 + (1 << 12)) >> 13; |
| 232 | } |
| 233 | |
| 234 | /* convert our high speed USB rate into sampling rate in Hz */ |
Jesper Juhl | 77933d7 | 2005-07-27 11:46:09 -0700 | [diff] [blame] | 235 | static inline unsigned get_high_speed_hz(unsigned int usb_rate) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | { |
| 237 | return (usb_rate * 125 + (1 << 9)) >> 10; |
| 238 | } |
| 239 | |
| 240 | |
| 241 | /* |
| 242 | * prepare urb for full speed capture sync pipe |
| 243 | * |
| 244 | * fill the length and offset of each urb descriptor. |
| 245 | * the fixed 10.14 frequency is passed through the pipe. |
| 246 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 247 | static int prepare_capture_sync_urb(struct snd_usb_substream *subs, |
| 248 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | struct urb *urb) |
| 250 | { |
| 251 | unsigned char *cp = urb->transfer_buffer; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 252 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 255 | urb->iso_frame_desc[0].length = 3; |
| 256 | urb->iso_frame_desc[0].offset = 0; |
| 257 | cp[0] = subs->freqn >> 2; |
| 258 | cp[1] = subs->freqn >> 10; |
| 259 | cp[2] = subs->freqn >> 18; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | /* |
| 264 | * prepare urb for high speed capture sync pipe |
| 265 | * |
| 266 | * fill the length and offset of each urb descriptor. |
| 267 | * the fixed 12.13 frequency is passed as 16.16 through the pipe. |
| 268 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 269 | static int prepare_capture_sync_urb_hs(struct snd_usb_substream *subs, |
| 270 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | struct urb *urb) |
| 272 | { |
| 273 | unsigned char *cp = urb->transfer_buffer; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 274 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 277 | urb->iso_frame_desc[0].length = 4; |
| 278 | urb->iso_frame_desc[0].offset = 0; |
| 279 | cp[0] = subs->freqn; |
| 280 | cp[1] = subs->freqn >> 8; |
| 281 | cp[2] = subs->freqn >> 16; |
| 282 | cp[3] = subs->freqn >> 24; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | /* |
| 287 | * process after capture sync complete |
| 288 | * - nothing to do |
| 289 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 290 | static int retire_capture_sync_urb(struct snd_usb_substream *subs, |
| 291 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | struct urb *urb) |
| 293 | { |
| 294 | return 0; |
| 295 | } |
| 296 | |
| 297 | /* |
| 298 | * prepare urb for capture data pipe |
| 299 | * |
| 300 | * fill the offset and length of each descriptor. |
| 301 | * |
| 302 | * we use a temporary buffer to write the captured data. |
| 303 | * since the length of written data is determined by host, we cannot |
| 304 | * write onto the pcm buffer directly... the data is thus copied |
| 305 | * later at complete callback to the global buffer. |
| 306 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 307 | static int prepare_capture_urb(struct snd_usb_substream *subs, |
| 308 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | struct urb *urb) |
| 310 | { |
| 311 | int i, offs; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 312 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | |
| 314 | offs = 0; |
| 315 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | for (i = 0; i < ctx->packets; i++) { |
| 317 | urb->iso_frame_desc[i].offset = offs; |
| 318 | urb->iso_frame_desc[i].length = subs->curpacksize; |
| 319 | offs += subs->curpacksize; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | urb->transfer_buffer_length = offs; |
Clemens Ladisch | b263a9b | 2005-08-15 08:22:39 +0200 | [diff] [blame] | 322 | urb->number_of_packets = ctx->packets; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | #if 0 // for check |
| 324 | if (! urb->bandwidth) { |
| 325 | int bustime; |
| 326 | bustime = usb_check_bandwidth(urb->dev, urb); |
| 327 | if (bustime < 0) |
| 328 | return bustime; |
| 329 | printk("urb %d: bandwidth = %d (packets = %d)\n", ctx->index, bustime, urb->number_of_packets); |
| 330 | usb_claim_bandwidth(urb->dev, urb, bustime, 1); |
| 331 | } |
| 332 | #endif // for check |
| 333 | return 0; |
| 334 | } |
| 335 | |
| 336 | /* |
| 337 | * process after capture complete |
| 338 | * |
| 339 | * copy the data from each desctiptor to the pcm buffer, and |
| 340 | * update the current position. |
| 341 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 342 | static int retire_capture_urb(struct snd_usb_substream *subs, |
| 343 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | struct urb *urb) |
| 345 | { |
| 346 | unsigned long flags; |
| 347 | unsigned char *cp; |
| 348 | int i; |
| 349 | unsigned int stride, len, oldptr; |
Clemens Ladisch | b263a9b | 2005-08-15 08:22:39 +0200 | [diff] [blame] | 350 | int period_elapsed = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | |
| 352 | stride = runtime->frame_bits >> 3; |
| 353 | |
| 354 | for (i = 0; i < urb->number_of_packets; i++) { |
| 355 | cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset; |
| 356 | if (urb->iso_frame_desc[i].status) { |
| 357 | snd_printd(KERN_ERR "frame %d active: %d\n", i, urb->iso_frame_desc[i].status); |
| 358 | // continue; |
| 359 | } |
| 360 | len = urb->iso_frame_desc[i].actual_length / stride; |
| 361 | if (! len) |
| 362 | continue; |
| 363 | /* update the current pointer */ |
| 364 | spin_lock_irqsave(&subs->lock, flags); |
| 365 | oldptr = subs->hwptr_done; |
| 366 | subs->hwptr_done += len; |
| 367 | if (subs->hwptr_done >= runtime->buffer_size) |
| 368 | subs->hwptr_done -= runtime->buffer_size; |
| 369 | subs->transfer_done += len; |
Clemens Ladisch | b263a9b | 2005-08-15 08:22:39 +0200 | [diff] [blame] | 370 | if (subs->transfer_done >= runtime->period_size) { |
| 371 | subs->transfer_done -= runtime->period_size; |
| 372 | period_elapsed = 1; |
| 373 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | spin_unlock_irqrestore(&subs->lock, flags); |
| 375 | /* copy a data chunk */ |
| 376 | if (oldptr + len > runtime->buffer_size) { |
| 377 | unsigned int cnt = runtime->buffer_size - oldptr; |
| 378 | unsigned int blen = cnt * stride; |
| 379 | memcpy(runtime->dma_area + oldptr * stride, cp, blen); |
| 380 | memcpy(runtime->dma_area, cp + blen, len * stride - blen); |
| 381 | } else { |
| 382 | memcpy(runtime->dma_area + oldptr * stride, cp, len * stride); |
| 383 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | } |
Clemens Ladisch | b263a9b | 2005-08-15 08:22:39 +0200 | [diff] [blame] | 385 | if (period_elapsed) |
| 386 | snd_pcm_period_elapsed(subs->pcm_substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | return 0; |
| 388 | } |
| 389 | |
| 390 | |
| 391 | /* |
| 392 | * prepare urb for full speed playback sync pipe |
| 393 | * |
| 394 | * set up the offset and length to receive the current frequency. |
| 395 | */ |
| 396 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 397 | static int prepare_playback_sync_urb(struct snd_usb_substream *subs, |
| 398 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | struct urb *urb) |
| 400 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 401 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 404 | urb->iso_frame_desc[0].length = 3; |
| 405 | urb->iso_frame_desc[0].offset = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | return 0; |
| 407 | } |
| 408 | |
| 409 | /* |
| 410 | * prepare urb for high speed playback sync pipe |
| 411 | * |
| 412 | * set up the offset and length to receive the current frequency. |
| 413 | */ |
| 414 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 415 | static int prepare_playback_sync_urb_hs(struct snd_usb_substream *subs, |
| 416 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | struct urb *urb) |
| 418 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 419 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 422 | urb->iso_frame_desc[0].length = 4; |
| 423 | urb->iso_frame_desc[0].offset = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | return 0; |
| 425 | } |
| 426 | |
| 427 | /* |
| 428 | * process after full speed playback sync complete |
| 429 | * |
| 430 | * retrieve the current 10.14 frequency from pipe, and set it. |
| 431 | * the value is referred in prepare_playback_urb(). |
| 432 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 433 | static int retire_playback_sync_urb(struct snd_usb_substream *subs, |
| 434 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | struct urb *urb) |
| 436 | { |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 437 | unsigned int f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | unsigned long flags; |
| 439 | |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 440 | if (urb->iso_frame_desc[0].status == 0 && |
| 441 | urb->iso_frame_desc[0].actual_length == 3) { |
| 442 | f = combine_triple((u8*)urb->transfer_buffer) << 2; |
Clemens Ladisch | 50cdbf1 | 2005-05-13 07:44:13 +0200 | [diff] [blame] | 443 | if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) { |
| 444 | spin_lock_irqsave(&subs->lock, flags); |
| 445 | subs->freqm = f; |
| 446 | spin_unlock_irqrestore(&subs->lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | } |
| 449 | |
| 450 | return 0; |
| 451 | } |
| 452 | |
| 453 | /* |
| 454 | * process after high speed playback sync complete |
| 455 | * |
| 456 | * retrieve the current 12.13 frequency from pipe, and set it. |
| 457 | * the value is referred in prepare_playback_urb(). |
| 458 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 459 | static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs, |
| 460 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | struct urb *urb) |
| 462 | { |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 463 | unsigned int f; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | unsigned long flags; |
| 465 | |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 466 | if (urb->iso_frame_desc[0].status == 0 && |
| 467 | urb->iso_frame_desc[0].actual_length == 4) { |
| 468 | f = combine_quad((u8*)urb->transfer_buffer) & 0x0fffffff; |
Clemens Ladisch | 50cdbf1 | 2005-05-13 07:44:13 +0200 | [diff] [blame] | 469 | if (f >= subs->freqn - subs->freqn / 8 && f <= subs->freqmax) { |
| 470 | spin_lock_irqsave(&subs->lock, flags); |
| 471 | subs->freqm = f; |
| 472 | spin_unlock_irqrestore(&subs->lock, flags); |
| 473 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | return 0; |
| 477 | } |
| 478 | |
Clemens Ladisch | 9568f46 | 2006-01-12 08:19:21 +0100 | [diff] [blame] | 479 | /* determine the number of frames in the next packet */ |
| 480 | static int snd_usb_audio_next_packet_size(struct snd_usb_substream *subs) |
| 481 | { |
| 482 | if (subs->fill_max) |
| 483 | return subs->maxframesize; |
| 484 | else { |
| 485 | subs->phase = (subs->phase & 0xffff) |
| 486 | + (subs->freqm << subs->datainterval); |
| 487 | return min(subs->phase >> 16, subs->maxframesize); |
| 488 | } |
| 489 | } |
| 490 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | /* |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 492 | * Prepare urb for streaming before playback starts. |
| 493 | * |
Clemens Ladisch | 4b28492 | 2006-01-12 08:17:49 +0100 | [diff] [blame] | 494 | * We don't yet have data, so we send a frame of silence. |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 495 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 496 | static int prepare_startup_playback_urb(struct snd_usb_substream *subs, |
| 497 | struct snd_pcm_runtime *runtime, |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 498 | struct urb *urb) |
| 499 | { |
Clemens Ladisch | 4b28492 | 2006-01-12 08:17:49 +0100 | [diff] [blame] | 500 | unsigned int i, offs, counts; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 501 | struct snd_urb_ctx *ctx = urb->context; |
Clemens Ladisch | 4b28492 | 2006-01-12 08:17:49 +0100 | [diff] [blame] | 502 | int stride = runtime->frame_bits >> 3; |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 503 | |
Clemens Ladisch | 4b28492 | 2006-01-12 08:17:49 +0100 | [diff] [blame] | 504 | offs = 0; |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 505 | urb->dev = ctx->subs->dev; |
| 506 | urb->number_of_packets = subs->packs_per_ms; |
| 507 | for (i = 0; i < subs->packs_per_ms; ++i) { |
Clemens Ladisch | 9568f46 | 2006-01-12 08:19:21 +0100 | [diff] [blame] | 508 | counts = snd_usb_audio_next_packet_size(subs); |
Clemens Ladisch | 4b28492 | 2006-01-12 08:17:49 +0100 | [diff] [blame] | 509 | urb->iso_frame_desc[i].offset = offs * stride; |
| 510 | urb->iso_frame_desc[i].length = counts * stride; |
| 511 | offs += counts; |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 512 | } |
Clemens Ladisch | 4b28492 | 2006-01-12 08:17:49 +0100 | [diff] [blame] | 513 | urb->transfer_buffer_length = offs * stride; |
| 514 | memset(urb->transfer_buffer, |
| 515 | subs->cur_audiofmt->format == SNDRV_PCM_FORMAT_U8 ? 0x80 : 0, |
| 516 | offs * stride); |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 517 | return 0; |
| 518 | } |
| 519 | |
| 520 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | * prepare urb for playback data pipe |
| 522 | * |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 523 | * Since a URB can handle only a single linear buffer, we must use double |
| 524 | * buffering when the data to be transferred overflows the buffer boundary. |
| 525 | * To avoid inconsistencies when updating hwptr_done, we use double buffering |
| 526 | * for all URBs. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 528 | static int prepare_playback_urb(struct snd_usb_substream *subs, |
| 529 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | struct urb *urb) |
| 531 | { |
| 532 | int i, stride, offs; |
| 533 | unsigned int counts; |
| 534 | unsigned long flags; |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 535 | int period_elapsed = 0; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 536 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | |
| 538 | stride = runtime->frame_bits >> 3; |
| 539 | |
| 540 | offs = 0; |
| 541 | urb->dev = ctx->subs->dev; /* we need to set this at each time */ |
| 542 | urb->number_of_packets = 0; |
| 543 | spin_lock_irqsave(&subs->lock, flags); |
| 544 | for (i = 0; i < ctx->packets; i++) { |
Clemens Ladisch | 9568f46 | 2006-01-12 08:19:21 +0100 | [diff] [blame] | 545 | counts = snd_usb_audio_next_packet_size(subs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | /* set up descriptor */ |
| 547 | urb->iso_frame_desc[i].offset = offs * stride; |
| 548 | urb->iso_frame_desc[i].length = counts * stride; |
| 549 | offs += counts; |
| 550 | urb->number_of_packets++; |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 551 | subs->transfer_done += counts; |
| 552 | if (subs->transfer_done >= runtime->period_size) { |
| 553 | subs->transfer_done -= runtime->period_size; |
| 554 | period_elapsed = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | if (subs->fmt_type == USB_FORMAT_TYPE_II) { |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 556 | if (subs->transfer_done > 0) { |
| 557 | /* FIXME: fill-max mode is not |
| 558 | * supported yet */ |
| 559 | offs -= subs->transfer_done; |
| 560 | counts -= subs->transfer_done; |
| 561 | urb->iso_frame_desc[i].length = |
| 562 | counts * stride; |
| 563 | subs->transfer_done = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | } |
| 565 | i++; |
| 566 | if (i < ctx->packets) { |
| 567 | /* add a transfer delimiter */ |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 568 | urb->iso_frame_desc[i].offset = |
| 569 | offs * stride; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | urb->iso_frame_desc[i].length = 0; |
| 571 | urb->number_of_packets++; |
| 572 | } |
Clemens Ladisch | 9624ea8 | 2005-08-15 08:25:24 +0200 | [diff] [blame] | 573 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | } |
Clemens Ladisch | 9624ea8 | 2005-08-15 08:25:24 +0200 | [diff] [blame] | 576 | /* finish at the frame boundary at/after the period boundary */ |
| 577 | if (period_elapsed && |
| 578 | (i & (subs->packs_per_ms - 1)) == subs->packs_per_ms - 1) |
| 579 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | } |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 581 | if (subs->hwptr_done + offs > runtime->buffer_size) { |
| 582 | /* err, the transferred area goes over buffer boundary. */ |
| 583 | unsigned int len = runtime->buffer_size - subs->hwptr_done; |
| 584 | memcpy(urb->transfer_buffer, |
| 585 | runtime->dma_area + subs->hwptr_done * stride, |
| 586 | len * stride); |
| 587 | memcpy(urb->transfer_buffer + len * stride, |
| 588 | runtime->dma_area, |
| 589 | (offs - len) * stride); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 590 | } else { |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 591 | memcpy(urb->transfer_buffer, |
| 592 | runtime->dma_area + subs->hwptr_done * stride, |
| 593 | offs * stride); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 594 | } |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 595 | subs->hwptr_done += offs; |
| 596 | if (subs->hwptr_done >= runtime->buffer_size) |
| 597 | subs->hwptr_done -= runtime->buffer_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | spin_unlock_irqrestore(&subs->lock, flags); |
| 599 | urb->transfer_buffer_length = offs * stride; |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 600 | if (period_elapsed) |
| 601 | snd_pcm_period_elapsed(subs->pcm_substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | return 0; |
| 603 | } |
| 604 | |
| 605 | /* |
| 606 | * process after playback data complete |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 607 | * - nothing to do |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 609 | static int retire_playback_urb(struct snd_usb_substream *subs, |
| 610 | struct snd_pcm_runtime *runtime, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | struct urb *urb) |
| 612 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | return 0; |
| 614 | } |
| 615 | |
| 616 | |
| 617 | /* |
| 618 | */ |
| 619 | static struct snd_urb_ops audio_urb_ops[2] = { |
| 620 | { |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 621 | .prepare = prepare_startup_playback_urb, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | .retire = retire_playback_urb, |
| 623 | .prepare_sync = prepare_playback_sync_urb, |
| 624 | .retire_sync = retire_playback_sync_urb, |
| 625 | }, |
| 626 | { |
| 627 | .prepare = prepare_capture_urb, |
| 628 | .retire = retire_capture_urb, |
| 629 | .prepare_sync = prepare_capture_sync_urb, |
| 630 | .retire_sync = retire_capture_sync_urb, |
| 631 | }, |
| 632 | }; |
| 633 | |
| 634 | static struct snd_urb_ops audio_urb_ops_high_speed[2] = { |
| 635 | { |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 636 | .prepare = prepare_startup_playback_urb, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | .retire = retire_playback_urb, |
| 638 | .prepare_sync = prepare_playback_sync_urb_hs, |
| 639 | .retire_sync = retire_playback_sync_urb_hs, |
| 640 | }, |
| 641 | { |
| 642 | .prepare = prepare_capture_urb, |
| 643 | .retire = retire_capture_urb, |
| 644 | .prepare_sync = prepare_capture_sync_urb_hs, |
| 645 | .retire_sync = retire_capture_sync_urb, |
| 646 | }, |
| 647 | }; |
| 648 | |
| 649 | /* |
| 650 | * complete callback from data urb |
| 651 | */ |
| 652 | static void snd_complete_urb(struct urb *urb, struct pt_regs *regs) |
| 653 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 654 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
| 655 | struct snd_usb_substream *subs = ctx->subs; |
| 656 | struct snd_pcm_substream *substream = ctx->subs->pcm_substream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | int err = 0; |
| 658 | |
| 659 | if ((subs->running && subs->ops.retire(subs, substream->runtime, urb)) || |
| 660 | ! subs->running || /* can be stopped during retire callback */ |
| 661 | (err = subs->ops.prepare(subs, substream->runtime, urb)) < 0 || |
| 662 | (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { |
| 663 | clear_bit(ctx->index, &subs->active_mask); |
| 664 | if (err < 0) { |
| 665 | snd_printd(KERN_ERR "cannot submit urb (err = %d)\n", err); |
| 666 | snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN); |
| 667 | } |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | |
| 672 | /* |
| 673 | * complete callback from sync urb |
| 674 | */ |
| 675 | static void snd_complete_sync_urb(struct urb *urb, struct pt_regs *regs) |
| 676 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 677 | struct snd_urb_ctx *ctx = (struct snd_urb_ctx *)urb->context; |
| 678 | struct snd_usb_substream *subs = ctx->subs; |
| 679 | struct snd_pcm_substream *substream = ctx->subs->pcm_substream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | int err = 0; |
| 681 | |
| 682 | if ((subs->running && subs->ops.retire_sync(subs, substream->runtime, urb)) || |
| 683 | ! subs->running || /* can be stopped during retire callback */ |
| 684 | (err = subs->ops.prepare_sync(subs, substream->runtime, urb)) < 0 || |
| 685 | (err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { |
| 686 | clear_bit(ctx->index + 16, &subs->active_mask); |
| 687 | if (err < 0) { |
| 688 | snd_printd(KERN_ERR "cannot submit sync urb (err = %d)\n", err); |
| 689 | snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN); |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 695 | /* get the physical page pointer at the given offset */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 696 | static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs, |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 697 | unsigned long offset) |
| 698 | { |
| 699 | void *pageptr = subs->runtime->dma_area + offset; |
| 700 | return vmalloc_to_page(pageptr); |
| 701 | } |
| 702 | |
| 703 | /* allocate virtual buffer; may be called more than once */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 704 | static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs, size_t size) |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 705 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 706 | struct snd_pcm_runtime *runtime = subs->runtime; |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 707 | if (runtime->dma_area) { |
| 708 | if (runtime->dma_bytes >= size) |
| 709 | return 0; /* already large enough */ |
Takashi Iwai | b1d5776 | 2005-10-10 11:56:31 +0200 | [diff] [blame] | 710 | vfree(runtime->dma_area); |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 711 | } |
Takashi Iwai | b1d5776 | 2005-10-10 11:56:31 +0200 | [diff] [blame] | 712 | runtime->dma_area = vmalloc(size); |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 713 | if (! runtime->dma_area) |
| 714 | return -ENOMEM; |
| 715 | runtime->dma_bytes = size; |
| 716 | return 0; |
| 717 | } |
| 718 | |
| 719 | /* free virtual buffer; may be called more than once */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 720 | static int snd_pcm_free_vmalloc_buffer(struct snd_pcm_substream *subs) |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 721 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 722 | struct snd_pcm_runtime *runtime = subs->runtime; |
Jesper Juhl | 9c4be3d | 2006-02-09 20:04:16 +0100 | [diff] [blame] | 723 | |
| 724 | vfree(runtime->dma_area); |
| 725 | runtime->dma_area = NULL; |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 726 | return 0; |
| 727 | } |
| 728 | |
| 729 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 730 | /* |
| 731 | * unlink active urbs. |
| 732 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 733 | static int deactivate_urbs(struct snd_usb_substream *subs, int force, int can_sleep) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | { |
| 735 | unsigned int i; |
| 736 | int async; |
| 737 | |
| 738 | subs->running = 0; |
| 739 | |
| 740 | if (!force && subs->stream->chip->shutdown) /* to be sure... */ |
| 741 | return -EBADFD; |
| 742 | |
| 743 | async = !can_sleep && async_unlink; |
| 744 | |
| 745 | if (! async && in_interrupt()) |
| 746 | return 0; |
| 747 | |
| 748 | for (i = 0; i < subs->nurbs; i++) { |
| 749 | if (test_bit(i, &subs->active_mask)) { |
| 750 | if (! test_and_set_bit(i, &subs->unlink_mask)) { |
| 751 | struct urb *u = subs->dataurb[i].urb; |
Alan Stern | b375a04 | 2005-07-29 16:11:07 -0400 | [diff] [blame] | 752 | if (async) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | usb_unlink_urb(u); |
Alan Stern | b375a04 | 2005-07-29 16:11:07 -0400 | [diff] [blame] | 754 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 755 | usb_kill_urb(u); |
| 756 | } |
| 757 | } |
| 758 | } |
| 759 | if (subs->syncpipe) { |
| 760 | for (i = 0; i < SYNC_URBS; i++) { |
| 761 | if (test_bit(i+16, &subs->active_mask)) { |
| 762 | if (! test_and_set_bit(i+16, &subs->unlink_mask)) { |
| 763 | struct urb *u = subs->syncurb[i].urb; |
Alan Stern | b375a04 | 2005-07-29 16:11:07 -0400 | [diff] [blame] | 764 | if (async) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 765 | usb_unlink_urb(u); |
Alan Stern | b375a04 | 2005-07-29 16:11:07 -0400 | [diff] [blame] | 766 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | usb_kill_urb(u); |
| 768 | } |
| 769 | } |
| 770 | } |
| 771 | } |
| 772 | return 0; |
| 773 | } |
| 774 | |
| 775 | |
Clemens Ladisch | 32e19e8 | 2006-03-09 07:58:39 +0100 | [diff] [blame^] | 776 | static const char *usb_error_string(int err) |
| 777 | { |
| 778 | switch (err) { |
| 779 | case -ENODEV: |
| 780 | return "no device"; |
| 781 | case -ENOENT: |
| 782 | return "endpoint not enabled"; |
| 783 | case -EPIPE: |
| 784 | return "endpoint stalled"; |
| 785 | case -ENOSPC: |
| 786 | return "not enough bandwidth"; |
| 787 | case -ESHUTDOWN: |
| 788 | return "device disabled"; |
| 789 | case -EHOSTUNREACH: |
| 790 | return "device suspended"; |
| 791 | case -EINVAL: |
| 792 | case -EAGAIN: |
| 793 | case -EFBIG: |
| 794 | case -EMSGSIZE: |
| 795 | return "internal error"; |
| 796 | default: |
| 797 | return "unknown error"; |
| 798 | } |
| 799 | } |
| 800 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | /* |
| 802 | * set up and start data/sync urbs |
| 803 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 804 | static int start_urbs(struct snd_usb_substream *subs, struct snd_pcm_runtime *runtime) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | { |
| 806 | unsigned int i; |
| 807 | int err; |
| 808 | |
| 809 | if (subs->stream->chip->shutdown) |
| 810 | return -EBADFD; |
| 811 | |
| 812 | for (i = 0; i < subs->nurbs; i++) { |
| 813 | snd_assert(subs->dataurb[i].urb, return -EINVAL); |
| 814 | if (subs->ops.prepare(subs, runtime, subs->dataurb[i].urb) < 0) { |
| 815 | snd_printk(KERN_ERR "cannot prepare datapipe for urb %d\n", i); |
| 816 | goto __error; |
| 817 | } |
| 818 | } |
| 819 | if (subs->syncpipe) { |
| 820 | for (i = 0; i < SYNC_URBS; i++) { |
| 821 | snd_assert(subs->syncurb[i].urb, return -EINVAL); |
| 822 | if (subs->ops.prepare_sync(subs, runtime, subs->syncurb[i].urb) < 0) { |
| 823 | snd_printk(KERN_ERR "cannot prepare syncpipe for urb %d\n", i); |
| 824 | goto __error; |
| 825 | } |
| 826 | } |
| 827 | } |
| 828 | |
| 829 | subs->active_mask = 0; |
| 830 | subs->unlink_mask = 0; |
| 831 | subs->running = 1; |
| 832 | for (i = 0; i < subs->nurbs; i++) { |
Clemens Ladisch | 32e19e8 | 2006-03-09 07:58:39 +0100 | [diff] [blame^] | 833 | err = usb_submit_urb(subs->dataurb[i].urb, GFP_ATOMIC); |
| 834 | if (err < 0) { |
| 835 | snd_printk(KERN_ERR "cannot submit datapipe " |
| 836 | "for urb %d, error %d: %s\n", |
| 837 | i, err, usb_error_string(err)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | goto __error; |
| 839 | } |
| 840 | set_bit(i, &subs->active_mask); |
| 841 | } |
| 842 | if (subs->syncpipe) { |
| 843 | for (i = 0; i < SYNC_URBS; i++) { |
Clemens Ladisch | 32e19e8 | 2006-03-09 07:58:39 +0100 | [diff] [blame^] | 844 | err = usb_submit_urb(subs->syncurb[i].urb, GFP_ATOMIC); |
| 845 | if (err < 0) { |
| 846 | snd_printk(KERN_ERR "cannot submit syncpipe " |
| 847 | "for urb %d, error %d: %s\n", |
| 848 | i, err, usb_error_string(err)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | goto __error; |
| 850 | } |
| 851 | set_bit(i + 16, &subs->active_mask); |
| 852 | } |
| 853 | } |
| 854 | return 0; |
| 855 | |
| 856 | __error: |
| 857 | // snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN); |
| 858 | deactivate_urbs(subs, 0, 0); |
| 859 | return -EPIPE; |
| 860 | } |
| 861 | |
| 862 | |
| 863 | /* |
| 864 | * wait until all urbs are processed. |
| 865 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 866 | static int wait_clear_urbs(struct snd_usb_substream *subs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | { |
Nishanth Aravamudan | b27c187 | 2005-07-09 10:54:37 +0200 | [diff] [blame] | 868 | unsigned long end_time = jiffies + msecs_to_jiffies(1000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | unsigned int i; |
| 870 | int alive; |
| 871 | |
| 872 | do { |
| 873 | alive = 0; |
| 874 | for (i = 0; i < subs->nurbs; i++) { |
| 875 | if (test_bit(i, &subs->active_mask)) |
| 876 | alive++; |
| 877 | } |
| 878 | if (subs->syncpipe) { |
| 879 | for (i = 0; i < SYNC_URBS; i++) { |
| 880 | if (test_bit(i + 16, &subs->active_mask)) |
| 881 | alive++; |
| 882 | } |
| 883 | } |
| 884 | if (! alive) |
| 885 | break; |
Nishanth Aravamudan | 8433a50 | 2005-10-24 15:02:37 +0200 | [diff] [blame] | 886 | schedule_timeout_uninterruptible(1); |
Nishanth Aravamudan | b27c187 | 2005-07-09 10:54:37 +0200 | [diff] [blame] | 887 | } while (time_before(jiffies, end_time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | if (alive) |
| 889 | snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive); |
| 890 | return 0; |
| 891 | } |
| 892 | |
| 893 | |
| 894 | /* |
| 895 | * return the current pcm pointer. just return the hwptr_done value. |
| 896 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 897 | static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 899 | struct snd_usb_substream *subs; |
Clemens Ladisch | daa150e | 2005-08-15 08:25:50 +0200 | [diff] [blame] | 900 | snd_pcm_uframes_t hwptr_done; |
| 901 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 902 | subs = (struct snd_usb_substream *)substream->runtime->private_data; |
Clemens Ladisch | daa150e | 2005-08-15 08:25:50 +0200 | [diff] [blame] | 903 | spin_lock(&subs->lock); |
| 904 | hwptr_done = subs->hwptr_done; |
| 905 | spin_unlock(&subs->lock); |
| 906 | return hwptr_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 907 | } |
| 908 | |
| 909 | |
| 910 | /* |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 911 | * start/stop playback substream |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 913 | static int snd_usb_pcm_playback_trigger(struct snd_pcm_substream *substream, |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 914 | int cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 916 | struct snd_usb_substream *subs = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 917 | |
| 918 | switch (cmd) { |
| 919 | case SNDRV_PCM_TRIGGER_START: |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 920 | subs->ops.prepare = prepare_playback_urb; |
| 921 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | case SNDRV_PCM_TRIGGER_STOP: |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 923 | return deactivate_urbs(subs, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | default: |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 925 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | } |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 927 | } |
| 928 | |
| 929 | /* |
| 930 | * start/stop capture substream |
| 931 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 932 | static int snd_usb_pcm_capture_trigger(struct snd_pcm_substream *substream, |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 933 | int cmd) |
| 934 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 935 | struct snd_usb_substream *subs = substream->runtime->private_data; |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 936 | |
| 937 | switch (cmd) { |
| 938 | case SNDRV_PCM_TRIGGER_START: |
| 939 | return start_urbs(subs, substream->runtime); |
| 940 | case SNDRV_PCM_TRIGGER_STOP: |
| 941 | return deactivate_urbs(subs, 0, 0); |
| 942 | default: |
| 943 | return -EINVAL; |
| 944 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | } |
| 946 | |
| 947 | |
| 948 | /* |
| 949 | * release a urb data |
| 950 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 951 | static void release_urb_ctx(struct snd_urb_ctx *u) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 952 | { |
| 953 | if (u->urb) { |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 954 | if (u->buffer_size) |
| 955 | usb_buffer_free(u->subs->dev, u->buffer_size, |
| 956 | u->urb->transfer_buffer, |
| 957 | u->urb->transfer_dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | usb_free_urb(u->urb); |
| 959 | u->urb = NULL; |
| 960 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | } |
| 962 | |
| 963 | /* |
| 964 | * release a substream |
| 965 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 966 | static void release_substream_urbs(struct snd_usb_substream *subs, int force) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | { |
| 968 | int i; |
| 969 | |
| 970 | /* stop urbs (to be sure) */ |
| 971 | deactivate_urbs(subs, force, 1); |
| 972 | wait_clear_urbs(subs); |
| 973 | |
| 974 | for (i = 0; i < MAX_URBS; i++) |
| 975 | release_urb_ctx(&subs->dataurb[i]); |
| 976 | for (i = 0; i < SYNC_URBS; i++) |
| 977 | release_urb_ctx(&subs->syncurb[i]); |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 978 | usb_buffer_free(subs->dev, SYNC_URBS * 4, |
| 979 | subs->syncbuf, subs->sync_dma); |
| 980 | subs->syncbuf = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | subs->nurbs = 0; |
| 982 | } |
| 983 | |
| 984 | /* |
| 985 | * initialize a substream for plaback/capture |
| 986 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 987 | static int init_substream_urbs(struct snd_usb_substream *subs, unsigned int period_bytes, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 988 | unsigned int rate, unsigned int frame_bits) |
| 989 | { |
| 990 | unsigned int maxsize, n, i; |
| 991 | int is_playback = subs->direction == SNDRV_PCM_STREAM_PLAYBACK; |
Clemens Ladisch | a93bf99 | 2005-08-12 15:19:39 +0200 | [diff] [blame] | 992 | unsigned int npacks[MAX_URBS], urb_packs, total_packs, packs_per_ms; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 993 | |
| 994 | /* calculate the frequency in 16.16 format */ |
| 995 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) |
| 996 | subs->freqn = get_usb_full_speed_rate(rate); |
| 997 | else |
| 998 | subs->freqn = get_usb_high_speed_rate(rate); |
| 999 | subs->freqm = subs->freqn; |
Clemens Ladisch | 573567e | 2005-06-27 08:17:30 +0200 | [diff] [blame] | 1000 | /* calculate max. frequency */ |
| 1001 | if (subs->maxpacksize) { |
| 1002 | /* whatever fits into a max. size packet */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | maxsize = subs->maxpacksize; |
Clemens Ladisch | 573567e | 2005-06-27 08:17:30 +0200 | [diff] [blame] | 1004 | subs->freqmax = (maxsize / (frame_bits >> 3)) |
| 1005 | << (16 - subs->datainterval); |
| 1006 | } else { |
| 1007 | /* no max. packet size: just take 25% higher than nominal */ |
| 1008 | subs->freqmax = subs->freqn + (subs->freqn >> 2); |
| 1009 | maxsize = ((subs->freqmax + 0xffff) * (frame_bits >> 3)) |
| 1010 | >> (16 - subs->datainterval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | } |
Clemens Ladisch | 573567e | 2005-06-27 08:17:30 +0200 | [diff] [blame] | 1012 | subs->phase = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | |
| 1014 | if (subs->fill_max) |
| 1015 | subs->curpacksize = subs->maxpacksize; |
| 1016 | else |
| 1017 | subs->curpacksize = maxsize; |
| 1018 | |
Clemens Ladisch | a93bf99 | 2005-08-12 15:19:39 +0200 | [diff] [blame] | 1019 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) |
| 1020 | packs_per_ms = 8 >> subs->datainterval; |
| 1021 | else |
| 1022 | packs_per_ms = 1; |
Clemens Ladisch | 9624ea8 | 2005-08-15 08:25:24 +0200 | [diff] [blame] | 1023 | subs->packs_per_ms = packs_per_ms; |
Clemens Ladisch | a93bf99 | 2005-08-12 15:19:39 +0200 | [diff] [blame] | 1024 | |
Clemens Ladisch | 71d848c | 2005-08-12 15:18:00 +0200 | [diff] [blame] | 1025 | if (is_playback) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | urb_packs = nrpacks; |
Clemens Ladisch | 71d848c | 2005-08-12 15:18:00 +0200 | [diff] [blame] | 1027 | urb_packs = max(urb_packs, (unsigned int)MIN_PACKS_URB); |
| 1028 | urb_packs = min(urb_packs, (unsigned int)MAX_PACKS); |
| 1029 | } else |
Clemens Ladisch | 15a24c0 | 2005-08-12 08:25:26 +0200 | [diff] [blame] | 1030 | urb_packs = 1; |
Clemens Ladisch | a93bf99 | 2005-08-12 15:19:39 +0200 | [diff] [blame] | 1031 | urb_packs *= packs_per_ms; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1032 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | /* decide how many packets to be used */ |
Clemens Ladisch | 15a24c0 | 2005-08-12 08:25:26 +0200 | [diff] [blame] | 1034 | if (is_playback) { |
Clemens Ladisch | d6db392 | 2005-08-12 08:28:27 +0200 | [diff] [blame] | 1035 | unsigned int minsize; |
| 1036 | /* determine how small a packet can be */ |
| 1037 | minsize = (subs->freqn >> (16 - subs->datainterval)) |
| 1038 | * (frame_bits >> 3); |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 1039 | /* with sync from device, assume it can be 12% lower */ |
Clemens Ladisch | d6db392 | 2005-08-12 08:28:27 +0200 | [diff] [blame] | 1040 | if (subs->syncpipe) |
Clemens Ladisch | 7efd8bc | 2005-08-15 08:24:44 +0200 | [diff] [blame] | 1041 | minsize -= minsize >> 3; |
Clemens Ladisch | d6db392 | 2005-08-12 08:28:27 +0200 | [diff] [blame] | 1042 | minsize = max(minsize, 1u); |
| 1043 | total_packs = (period_bytes + minsize - 1) / minsize; |
Clemens Ladisch | a93bf99 | 2005-08-12 15:19:39 +0200 | [diff] [blame] | 1044 | /* round up to multiple of packs_per_ms */ |
| 1045 | total_packs = (total_packs + packs_per_ms - 1) |
| 1046 | & ~(packs_per_ms - 1); |
| 1047 | /* we need at least two URBs for queueing */ |
| 1048 | if (total_packs < 2 * MIN_PACKS_URB * packs_per_ms) |
| 1049 | total_packs = 2 * MIN_PACKS_URB * packs_per_ms; |
Clemens Ladisch | 15a24c0 | 2005-08-12 08:25:26 +0200 | [diff] [blame] | 1050 | } else { |
| 1051 | total_packs = MAX_URBS * urb_packs; |
| 1052 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | subs->nurbs = (total_packs + urb_packs - 1) / urb_packs; |
| 1054 | if (subs->nurbs > MAX_URBS) { |
| 1055 | /* too much... */ |
| 1056 | subs->nurbs = MAX_URBS; |
| 1057 | total_packs = MAX_URBS * urb_packs; |
| 1058 | } |
| 1059 | n = total_packs; |
| 1060 | for (i = 0; i < subs->nurbs; i++) { |
| 1061 | npacks[i] = n > urb_packs ? urb_packs : n; |
| 1062 | n -= urb_packs; |
| 1063 | } |
| 1064 | if (subs->nurbs <= 1) { |
| 1065 | /* too little - we need at least two packets |
| 1066 | * to ensure contiguous playback/capture |
| 1067 | */ |
| 1068 | subs->nurbs = 2; |
| 1069 | npacks[0] = (total_packs + 1) / 2; |
| 1070 | npacks[1] = total_packs - npacks[0]; |
Clemens Ladisch | a93bf99 | 2005-08-12 15:19:39 +0200 | [diff] [blame] | 1071 | } else if (npacks[subs->nurbs-1] < MIN_PACKS_URB * packs_per_ms) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | /* the last packet is too small.. */ |
| 1073 | if (subs->nurbs > 2) { |
| 1074 | /* merge to the first one */ |
| 1075 | npacks[0] += npacks[subs->nurbs - 1]; |
| 1076 | subs->nurbs--; |
| 1077 | } else { |
| 1078 | /* divide to two */ |
| 1079 | subs->nurbs = 2; |
| 1080 | npacks[0] = (total_packs + 1) / 2; |
| 1081 | npacks[1] = total_packs - npacks[0]; |
| 1082 | } |
| 1083 | } |
| 1084 | |
| 1085 | /* allocate and initialize data urbs */ |
| 1086 | for (i = 0; i < subs->nurbs; i++) { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1087 | struct snd_urb_ctx *u = &subs->dataurb[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | u->index = i; |
| 1089 | u->subs = subs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | u->packets = npacks[i]; |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1091 | u->buffer_size = maxsize * u->packets; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1092 | if (subs->fmt_type == USB_FORMAT_TYPE_II) |
| 1093 | u->packets++; /* for transfer delimiter */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | u->urb = usb_alloc_urb(u->packets, GFP_KERNEL); |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1095 | if (! u->urb) |
| 1096 | goto out_of_memory; |
| 1097 | u->urb->transfer_buffer = |
| 1098 | usb_buffer_alloc(subs->dev, u->buffer_size, GFP_KERNEL, |
| 1099 | &u->urb->transfer_dma); |
| 1100 | if (! u->urb->transfer_buffer) |
| 1101 | goto out_of_memory; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1102 | u->urb->pipe = subs->datapipe; |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1103 | u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
Clemens Ladisch | 573567e | 2005-06-27 08:17:30 +0200 | [diff] [blame] | 1104 | u->urb->interval = 1 << subs->datainterval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | u->urb->context = u; |
Clemens Ladisch | 3527a00 | 2005-09-26 10:03:09 +0200 | [diff] [blame] | 1106 | u->urb->complete = snd_complete_urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | } |
| 1108 | |
| 1109 | if (subs->syncpipe) { |
| 1110 | /* allocate and initialize sync urbs */ |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1111 | subs->syncbuf = usb_buffer_alloc(subs->dev, SYNC_URBS * 4, |
| 1112 | GFP_KERNEL, &subs->sync_dma); |
| 1113 | if (! subs->syncbuf) |
| 1114 | goto out_of_memory; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | for (i = 0; i < SYNC_URBS; i++) { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1116 | struct snd_urb_ctx *u = &subs->syncurb[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | u->index = i; |
| 1118 | u->subs = subs; |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 1119 | u->packets = 1; |
| 1120 | u->urb = usb_alloc_urb(1, GFP_KERNEL); |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1121 | if (! u->urb) |
| 1122 | goto out_of_memory; |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 1123 | u->urb->transfer_buffer = subs->syncbuf + i * 4; |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1124 | u->urb->transfer_dma = subs->sync_dma + i * 4; |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 1125 | u->urb->transfer_buffer_length = 4; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1126 | u->urb->pipe = subs->syncpipe; |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1127 | u->urb->transfer_flags = URB_ISO_ASAP | |
| 1128 | URB_NO_TRANSFER_DMA_MAP; |
Clemens Ladisch | ca81090 | 2005-05-02 08:55:54 +0200 | [diff] [blame] | 1129 | u->urb->number_of_packets = 1; |
Clemens Ladisch | 1149a64 | 2005-05-02 08:53:46 +0200 | [diff] [blame] | 1130 | u->urb->interval = 1 << subs->syncinterval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1131 | u->urb->context = u; |
Clemens Ladisch | 3527a00 | 2005-09-26 10:03:09 +0200 | [diff] [blame] | 1132 | u->urb->complete = snd_complete_sync_urb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | } |
| 1134 | } |
| 1135 | return 0; |
Clemens Ladisch | 55851f7 | 2005-08-15 08:34:16 +0200 | [diff] [blame] | 1136 | |
| 1137 | out_of_memory: |
| 1138 | release_substream_urbs(subs, 0); |
| 1139 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1140 | } |
| 1141 | |
| 1142 | |
| 1143 | /* |
| 1144 | * find a matching audio format |
| 1145 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1146 | static struct audioformat *find_format(struct snd_usb_substream *subs, unsigned int format, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | unsigned int rate, unsigned int channels) |
| 1148 | { |
| 1149 | struct list_head *p; |
| 1150 | struct audioformat *found = NULL; |
| 1151 | int cur_attr = 0, attr; |
| 1152 | |
| 1153 | list_for_each(p, &subs->fmt_list) { |
| 1154 | struct audioformat *fp; |
| 1155 | fp = list_entry(p, struct audioformat, list); |
| 1156 | if (fp->format != format || fp->channels != channels) |
| 1157 | continue; |
| 1158 | if (rate < fp->rate_min || rate > fp->rate_max) |
| 1159 | continue; |
| 1160 | if (! (fp->rates & SNDRV_PCM_RATE_CONTINUOUS)) { |
| 1161 | unsigned int i; |
| 1162 | for (i = 0; i < fp->nr_rates; i++) |
| 1163 | if (fp->rate_table[i] == rate) |
| 1164 | break; |
| 1165 | if (i >= fp->nr_rates) |
| 1166 | continue; |
| 1167 | } |
| 1168 | attr = fp->ep_attr & EP_ATTR_MASK; |
| 1169 | if (! found) { |
| 1170 | found = fp; |
| 1171 | cur_attr = attr; |
| 1172 | continue; |
| 1173 | } |
| 1174 | /* avoid async out and adaptive in if the other method |
| 1175 | * supports the same format. |
| 1176 | * this is a workaround for the case like |
| 1177 | * M-audio audiophile USB. |
| 1178 | */ |
| 1179 | if (attr != cur_attr) { |
| 1180 | if ((attr == EP_ATTR_ASYNC && |
| 1181 | subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || |
| 1182 | (attr == EP_ATTR_ADAPTIVE && |
| 1183 | subs->direction == SNDRV_PCM_STREAM_CAPTURE)) |
| 1184 | continue; |
| 1185 | if ((cur_attr == EP_ATTR_ASYNC && |
| 1186 | subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || |
| 1187 | (cur_attr == EP_ATTR_ADAPTIVE && |
| 1188 | subs->direction == SNDRV_PCM_STREAM_CAPTURE)) { |
| 1189 | found = fp; |
| 1190 | cur_attr = attr; |
| 1191 | continue; |
| 1192 | } |
| 1193 | } |
| 1194 | /* find the format with the largest max. packet size */ |
| 1195 | if (fp->maxpacksize > found->maxpacksize) { |
| 1196 | found = fp; |
| 1197 | cur_attr = attr; |
| 1198 | } |
| 1199 | } |
| 1200 | return found; |
| 1201 | } |
| 1202 | |
| 1203 | |
| 1204 | /* |
| 1205 | * initialize the picth control and sample rate |
| 1206 | */ |
| 1207 | static int init_usb_pitch(struct usb_device *dev, int iface, |
| 1208 | struct usb_host_interface *alts, |
| 1209 | struct audioformat *fmt) |
| 1210 | { |
| 1211 | unsigned int ep; |
| 1212 | unsigned char data[1]; |
| 1213 | int err; |
| 1214 | |
| 1215 | ep = get_endpoint(alts, 0)->bEndpointAddress; |
| 1216 | /* if endpoint has pitch control, enable it */ |
| 1217 | if (fmt->attributes & EP_CS_ATTR_PITCH_CONTROL) { |
| 1218 | data[0] = 1; |
| 1219 | if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, |
| 1220 | USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, |
| 1221 | PITCH_CONTROL << 8, ep, data, 1, 1000)) < 0) { |
| 1222 | snd_printk(KERN_ERR "%d:%d:%d: cannot set enable PITCH\n", |
| 1223 | dev->devnum, iface, ep); |
| 1224 | return err; |
| 1225 | } |
| 1226 | } |
| 1227 | return 0; |
| 1228 | } |
| 1229 | |
| 1230 | static int init_usb_sample_rate(struct usb_device *dev, int iface, |
| 1231 | struct usb_host_interface *alts, |
| 1232 | struct audioformat *fmt, int rate) |
| 1233 | { |
| 1234 | unsigned int ep; |
| 1235 | unsigned char data[3]; |
| 1236 | int err; |
| 1237 | |
| 1238 | ep = get_endpoint(alts, 0)->bEndpointAddress; |
| 1239 | /* if endpoint has sampling rate control, set it */ |
| 1240 | if (fmt->attributes & EP_CS_ATTR_SAMPLE_RATE) { |
| 1241 | int crate; |
| 1242 | data[0] = rate; |
| 1243 | data[1] = rate >> 8; |
| 1244 | data[2] = rate >> 16; |
| 1245 | if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), SET_CUR, |
| 1246 | USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, |
| 1247 | SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) { |
| 1248 | snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d to ep 0x%x\n", |
| 1249 | dev->devnum, iface, fmt->altsetting, rate, ep); |
| 1250 | return err; |
| 1251 | } |
| 1252 | if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), GET_CUR, |
| 1253 | USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_IN, |
| 1254 | SAMPLING_FREQ_CONTROL << 8, ep, data, 3, 1000)) < 0) { |
| 1255 | snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq at ep 0x%x\n", |
| 1256 | dev->devnum, iface, fmt->altsetting, ep); |
| 1257 | return 0; /* some devices don't support reading */ |
| 1258 | } |
| 1259 | crate = data[0] | (data[1] << 8) | (data[2] << 16); |
| 1260 | if (crate != rate) { |
| 1261 | snd_printd(KERN_WARNING "current rate %d is different from the runtime rate %d\n", crate, rate); |
| 1262 | // runtime->rate = crate; |
| 1263 | } |
| 1264 | } |
| 1265 | return 0; |
| 1266 | } |
| 1267 | |
| 1268 | /* |
| 1269 | * find a matching format and set up the interface |
| 1270 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1271 | static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1272 | { |
| 1273 | struct usb_device *dev = subs->dev; |
| 1274 | struct usb_host_interface *alts; |
| 1275 | struct usb_interface_descriptor *altsd; |
| 1276 | struct usb_interface *iface; |
| 1277 | unsigned int ep, attr; |
| 1278 | int is_playback = subs->direction == SNDRV_PCM_STREAM_PLAYBACK; |
| 1279 | int err; |
| 1280 | |
| 1281 | iface = usb_ifnum_to_if(dev, fmt->iface); |
| 1282 | snd_assert(iface, return -EINVAL); |
| 1283 | alts = &iface->altsetting[fmt->altset_idx]; |
| 1284 | altsd = get_iface_desc(alts); |
| 1285 | snd_assert(altsd->bAlternateSetting == fmt->altsetting, return -EINVAL); |
| 1286 | |
| 1287 | if (fmt == subs->cur_audiofmt) |
| 1288 | return 0; |
| 1289 | |
| 1290 | /* close the old interface */ |
| 1291 | if (subs->interface >= 0 && subs->interface != fmt->iface) { |
| 1292 | usb_set_interface(subs->dev, subs->interface, 0); |
| 1293 | subs->interface = -1; |
| 1294 | subs->format = 0; |
| 1295 | } |
| 1296 | |
| 1297 | /* set interface */ |
| 1298 | if (subs->interface != fmt->iface || subs->format != fmt->altset_idx) { |
| 1299 | if (usb_set_interface(dev, fmt->iface, fmt->altsetting) < 0) { |
| 1300 | snd_printk(KERN_ERR "%d:%d:%d: usb_set_interface failed\n", |
| 1301 | dev->devnum, fmt->iface, fmt->altsetting); |
| 1302 | return -EIO; |
| 1303 | } |
| 1304 | snd_printdd(KERN_INFO "setting usb interface %d:%d\n", fmt->iface, fmt->altsetting); |
| 1305 | subs->interface = fmt->iface; |
| 1306 | subs->format = fmt->altset_idx; |
| 1307 | } |
| 1308 | |
| 1309 | /* create a data pipe */ |
| 1310 | ep = fmt->endpoint & USB_ENDPOINT_NUMBER_MASK; |
| 1311 | if (is_playback) |
| 1312 | subs->datapipe = usb_sndisocpipe(dev, ep); |
| 1313 | else |
| 1314 | subs->datapipe = usb_rcvisocpipe(dev, ep); |
Clemens Ladisch | 573567e | 2005-06-27 08:17:30 +0200 | [diff] [blame] | 1315 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH && |
| 1316 | get_endpoint(alts, 0)->bInterval >= 1 && |
| 1317 | get_endpoint(alts, 0)->bInterval <= 4) |
| 1318 | subs->datainterval = get_endpoint(alts, 0)->bInterval - 1; |
| 1319 | else |
| 1320 | subs->datainterval = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1321 | subs->syncpipe = subs->syncinterval = 0; |
| 1322 | subs->maxpacksize = fmt->maxpacksize; |
| 1323 | subs->fill_max = 0; |
| 1324 | |
| 1325 | /* we need a sync pipe in async OUT or adaptive IN mode */ |
| 1326 | /* check the number of EP, since some devices have broken |
| 1327 | * descriptors which fool us. if it has only one EP, |
| 1328 | * assume it as adaptive-out or sync-in. |
| 1329 | */ |
| 1330 | attr = fmt->ep_attr & EP_ATTR_MASK; |
| 1331 | if (((is_playback && attr == EP_ATTR_ASYNC) || |
| 1332 | (! is_playback && attr == EP_ATTR_ADAPTIVE)) && |
| 1333 | altsd->bNumEndpoints >= 2) { |
| 1334 | /* check sync-pipe endpoint */ |
| 1335 | /* ... and check descriptor size before accessing bSynchAddress |
| 1336 | because there is a version of the SB Audigy 2 NX firmware lacking |
| 1337 | the audio fields in the endpoint descriptors */ |
| 1338 | if ((get_endpoint(alts, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != 0x01 || |
| 1339 | (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && |
| 1340 | get_endpoint(alts, 1)->bSynchAddress != 0)) { |
| 1341 | snd_printk(KERN_ERR "%d:%d:%d : invalid synch pipe\n", |
| 1342 | dev->devnum, fmt->iface, fmt->altsetting); |
| 1343 | return -EINVAL; |
| 1344 | } |
| 1345 | ep = get_endpoint(alts, 1)->bEndpointAddress; |
| 1346 | if (get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && |
| 1347 | (( is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) || |
| 1348 | (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) { |
| 1349 | snd_printk(KERN_ERR "%d:%d:%d : invalid synch pipe\n", |
| 1350 | dev->devnum, fmt->iface, fmt->altsetting); |
| 1351 | return -EINVAL; |
| 1352 | } |
| 1353 | ep &= USB_ENDPOINT_NUMBER_MASK; |
| 1354 | if (is_playback) |
| 1355 | subs->syncpipe = usb_rcvisocpipe(dev, ep); |
| 1356 | else |
| 1357 | subs->syncpipe = usb_sndisocpipe(dev, ep); |
Clemens Ladisch | 1149a64 | 2005-05-02 08:53:46 +0200 | [diff] [blame] | 1358 | if (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && |
| 1359 | get_endpoint(alts, 1)->bRefresh >= 1 && |
| 1360 | get_endpoint(alts, 1)->bRefresh <= 9) |
| 1361 | subs->syncinterval = get_endpoint(alts, 1)->bRefresh; |
Clemens Ladisch | 604cf49 | 2005-05-17 09:15:27 +0200 | [diff] [blame] | 1362 | else if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) |
Clemens Ladisch | 1149a64 | 2005-05-02 08:53:46 +0200 | [diff] [blame] | 1363 | subs->syncinterval = 1; |
Clemens Ladisch | 604cf49 | 2005-05-17 09:15:27 +0200 | [diff] [blame] | 1364 | else if (get_endpoint(alts, 1)->bInterval >= 1 && |
| 1365 | get_endpoint(alts, 1)->bInterval <= 16) |
| 1366 | subs->syncinterval = get_endpoint(alts, 1)->bInterval - 1; |
| 1367 | else |
| 1368 | subs->syncinterval = 3; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1369 | } |
| 1370 | |
| 1371 | /* always fill max packet size */ |
| 1372 | if (fmt->attributes & EP_CS_ATTR_FILL_MAX) |
| 1373 | subs->fill_max = 1; |
| 1374 | |
| 1375 | if ((err = init_usb_pitch(dev, subs->interface, alts, fmt)) < 0) |
| 1376 | return err; |
| 1377 | |
| 1378 | subs->cur_audiofmt = fmt; |
| 1379 | |
| 1380 | #if 0 |
| 1381 | printk("setting done: format = %d, rate = %d, channels = %d\n", |
| 1382 | fmt->format, fmt->rate, fmt->channels); |
| 1383 | printk(" datapipe = 0x%0x, syncpipe = 0x%0x\n", |
| 1384 | subs->datapipe, subs->syncpipe); |
| 1385 | #endif |
| 1386 | |
| 1387 | return 0; |
| 1388 | } |
| 1389 | |
| 1390 | /* |
| 1391 | * hw_params callback |
| 1392 | * |
| 1393 | * allocate a buffer and set the given audio format. |
| 1394 | * |
| 1395 | * so far we use a physically linear buffer although packetize transfer |
| 1396 | * doesn't need a continuous area. |
| 1397 | * if sg buffer is supported on the later version of alsa, we'll follow |
| 1398 | * that. |
| 1399 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1400 | static int snd_usb_hw_params(struct snd_pcm_substream *substream, |
| 1401 | struct snd_pcm_hw_params *hw_params) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1403 | struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1404 | struct audioformat *fmt; |
| 1405 | unsigned int channels, rate, format; |
| 1406 | int ret, changed; |
| 1407 | |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 1408 | ret = snd_pcm_alloc_vmalloc_buffer(substream, |
| 1409 | params_buffer_bytes(hw_params)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | if (ret < 0) |
| 1411 | return ret; |
| 1412 | |
| 1413 | format = params_format(hw_params); |
| 1414 | rate = params_rate(hw_params); |
| 1415 | channels = params_channels(hw_params); |
| 1416 | fmt = find_format(subs, format, rate, channels); |
| 1417 | if (! fmt) { |
Jaroslav Kysela | 21a3479 | 2006-01-13 09:12:11 +0100 | [diff] [blame] | 1418 | snd_printd(KERN_DEBUG "cannot set format: format = 0x%x, rate = %d, channels = %d\n", |
| 1419 | format, rate, channels); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1420 | return -EINVAL; |
| 1421 | } |
| 1422 | |
| 1423 | changed = subs->cur_audiofmt != fmt || |
| 1424 | subs->period_bytes != params_period_bytes(hw_params) || |
| 1425 | subs->cur_rate != rate; |
| 1426 | if ((ret = set_format(subs, fmt)) < 0) |
| 1427 | return ret; |
| 1428 | |
| 1429 | if (subs->cur_rate != rate) { |
| 1430 | struct usb_host_interface *alts; |
| 1431 | struct usb_interface *iface; |
| 1432 | iface = usb_ifnum_to_if(subs->dev, fmt->iface); |
| 1433 | alts = &iface->altsetting[fmt->altset_idx]; |
| 1434 | ret = init_usb_sample_rate(subs->dev, subs->interface, alts, fmt, rate); |
| 1435 | if (ret < 0) |
| 1436 | return ret; |
| 1437 | subs->cur_rate = rate; |
| 1438 | } |
| 1439 | |
| 1440 | if (changed) { |
| 1441 | /* format changed */ |
| 1442 | release_substream_urbs(subs, 0); |
| 1443 | /* influenced: period_bytes, channels, rate, format, */ |
| 1444 | ret = init_substream_urbs(subs, params_period_bytes(hw_params), |
| 1445 | params_rate(hw_params), |
| 1446 | snd_pcm_format_physical_width(params_format(hw_params)) * params_channels(hw_params)); |
| 1447 | } |
| 1448 | |
| 1449 | return ret; |
| 1450 | } |
| 1451 | |
| 1452 | /* |
| 1453 | * hw_free callback |
| 1454 | * |
| 1455 | * reset the audio format and release the buffer |
| 1456 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1457 | static int snd_usb_hw_free(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1459 | struct snd_usb_substream *subs = (struct snd_usb_substream *)substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | |
| 1461 | subs->cur_audiofmt = NULL; |
| 1462 | subs->cur_rate = 0; |
| 1463 | subs->period_bytes = 0; |
| 1464 | release_substream_urbs(subs, 0); |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 1465 | return snd_pcm_free_vmalloc_buffer(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | } |
| 1467 | |
| 1468 | /* |
| 1469 | * prepare callback |
| 1470 | * |
| 1471 | * only a few subtle things... |
| 1472 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1473 | static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1474 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1475 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1476 | struct snd_usb_substream *subs = runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | |
| 1478 | if (! subs->cur_audiofmt) { |
| 1479 | snd_printk(KERN_ERR "usbaudio: no format is specified!\n"); |
| 1480 | return -ENXIO; |
| 1481 | } |
| 1482 | |
| 1483 | /* some unit conversions in runtime */ |
| 1484 | subs->maxframesize = bytes_to_frames(runtime, subs->maxpacksize); |
| 1485 | subs->curframesize = bytes_to_frames(runtime, subs->curpacksize); |
| 1486 | |
| 1487 | /* reset the pointer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | subs->hwptr_done = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1489 | subs->transfer_done = 0; |
| 1490 | subs->phase = 0; |
| 1491 | |
| 1492 | /* clear urbs (to be sure) */ |
| 1493 | deactivate_urbs(subs, 0, 1); |
| 1494 | wait_clear_urbs(subs); |
| 1495 | |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 1496 | /* for playback, submit the URBs now; otherwise, the first hwptr_done |
| 1497 | * updates for all URBs would happen at the same time when starting */ |
| 1498 | if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { |
| 1499 | subs->ops.prepare = prepare_startup_playback_urb; |
| 1500 | return start_urbs(subs, runtime); |
| 1501 | } else |
| 1502 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | } |
| 1504 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1505 | static struct snd_pcm_hardware snd_usb_playback = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1506 | { |
Clemens Ladisch | 49045d3 | 2005-09-05 10:31:05 +0200 | [diff] [blame] | 1507 | .info = SNDRV_PCM_INFO_MMAP | |
| 1508 | SNDRV_PCM_INFO_MMAP_VALID | |
| 1509 | SNDRV_PCM_INFO_BATCH | |
| 1510 | SNDRV_PCM_INFO_INTERLEAVED | |
| 1511 | SNDRV_PCM_INFO_BLOCK_TRANSFER, |
Clemens Ladisch | d31cbbf | 2005-09-26 09:59:57 +0200 | [diff] [blame] | 1512 | .buffer_bytes_max = 1024 * 1024, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1513 | .period_bytes_min = 64, |
Clemens Ladisch | d31cbbf | 2005-09-26 09:59:57 +0200 | [diff] [blame] | 1514 | .period_bytes_max = 512 * 1024, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1515 | .periods_min = 2, |
| 1516 | .periods_max = 1024, |
| 1517 | }; |
| 1518 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1519 | static struct snd_pcm_hardware snd_usb_capture = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | { |
Clemens Ladisch | 49045d3 | 2005-09-05 10:31:05 +0200 | [diff] [blame] | 1521 | .info = SNDRV_PCM_INFO_MMAP | |
| 1522 | SNDRV_PCM_INFO_MMAP_VALID | |
| 1523 | SNDRV_PCM_INFO_BATCH | |
| 1524 | SNDRV_PCM_INFO_INTERLEAVED | |
| 1525 | SNDRV_PCM_INFO_BLOCK_TRANSFER, |
Clemens Ladisch | d31cbbf | 2005-09-26 09:59:57 +0200 | [diff] [blame] | 1526 | .buffer_bytes_max = 1024 * 1024, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | .period_bytes_min = 64, |
Clemens Ladisch | d31cbbf | 2005-09-26 09:59:57 +0200 | [diff] [blame] | 1528 | .period_bytes_max = 512 * 1024, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1529 | .periods_min = 2, |
| 1530 | .periods_max = 1024, |
| 1531 | }; |
| 1532 | |
| 1533 | /* |
| 1534 | * h/w constraints |
| 1535 | */ |
| 1536 | |
| 1537 | #ifdef HW_CONST_DEBUG |
| 1538 | #define hwc_debug(fmt, args...) printk(KERN_DEBUG fmt, ##args) |
| 1539 | #else |
| 1540 | #define hwc_debug(fmt, args...) /**/ |
| 1541 | #endif |
| 1542 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1543 | static int hw_check_valid_format(struct snd_pcm_hw_params *params, struct audioformat *fp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1544 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1545 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); |
| 1546 | struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); |
| 1547 | struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1548 | |
| 1549 | /* check the format */ |
| 1550 | if (! snd_mask_test(fmts, fp->format)) { |
| 1551 | hwc_debug(" > check: no supported format %d\n", fp->format); |
| 1552 | return 0; |
| 1553 | } |
| 1554 | /* check the channels */ |
| 1555 | if (fp->channels < ct->min || fp->channels > ct->max) { |
| 1556 | hwc_debug(" > check: no valid channels %d (%d/%d)\n", fp->channels, ct->min, ct->max); |
| 1557 | return 0; |
| 1558 | } |
| 1559 | /* check the rate is within the range */ |
| 1560 | if (fp->rate_min > it->max || (fp->rate_min == it->max && it->openmax)) { |
| 1561 | hwc_debug(" > check: rate_min %d > max %d\n", fp->rate_min, it->max); |
| 1562 | return 0; |
| 1563 | } |
| 1564 | if (fp->rate_max < it->min || (fp->rate_max == it->min && it->openmin)) { |
| 1565 | hwc_debug(" > check: rate_max %d < min %d\n", fp->rate_max, it->min); |
| 1566 | return 0; |
| 1567 | } |
| 1568 | return 1; |
| 1569 | } |
| 1570 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1571 | static int hw_rule_rate(struct snd_pcm_hw_params *params, |
| 1572 | struct snd_pcm_hw_rule *rule) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1574 | struct snd_usb_substream *subs = rule->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1575 | struct list_head *p; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1576 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | unsigned int rmin, rmax; |
| 1578 | int changed; |
| 1579 | |
| 1580 | hwc_debug("hw_rule_rate: (%d,%d)\n", it->min, it->max); |
| 1581 | changed = 0; |
| 1582 | rmin = rmax = 0; |
| 1583 | list_for_each(p, &subs->fmt_list) { |
| 1584 | struct audioformat *fp; |
| 1585 | fp = list_entry(p, struct audioformat, list); |
| 1586 | if (! hw_check_valid_format(params, fp)) |
| 1587 | continue; |
| 1588 | if (changed++) { |
| 1589 | if (rmin > fp->rate_min) |
| 1590 | rmin = fp->rate_min; |
| 1591 | if (rmax < fp->rate_max) |
| 1592 | rmax = fp->rate_max; |
| 1593 | } else { |
| 1594 | rmin = fp->rate_min; |
| 1595 | rmax = fp->rate_max; |
| 1596 | } |
| 1597 | } |
| 1598 | |
| 1599 | if (! changed) { |
| 1600 | hwc_debug(" --> get empty\n"); |
| 1601 | it->empty = 1; |
| 1602 | return -EINVAL; |
| 1603 | } |
| 1604 | |
| 1605 | changed = 0; |
| 1606 | if (it->min < rmin) { |
| 1607 | it->min = rmin; |
| 1608 | it->openmin = 0; |
| 1609 | changed = 1; |
| 1610 | } |
| 1611 | if (it->max > rmax) { |
| 1612 | it->max = rmax; |
| 1613 | it->openmax = 0; |
| 1614 | changed = 1; |
| 1615 | } |
| 1616 | if (snd_interval_checkempty(it)) { |
| 1617 | it->empty = 1; |
| 1618 | return -EINVAL; |
| 1619 | } |
| 1620 | hwc_debug(" --> (%d, %d) (changed = %d)\n", it->min, it->max, changed); |
| 1621 | return changed; |
| 1622 | } |
| 1623 | |
| 1624 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1625 | static int hw_rule_channels(struct snd_pcm_hw_params *params, |
| 1626 | struct snd_pcm_hw_rule *rule) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1627 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1628 | struct snd_usb_substream *subs = rule->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1629 | struct list_head *p; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1630 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1631 | unsigned int rmin, rmax; |
| 1632 | int changed; |
| 1633 | |
| 1634 | hwc_debug("hw_rule_channels: (%d,%d)\n", it->min, it->max); |
| 1635 | changed = 0; |
| 1636 | rmin = rmax = 0; |
| 1637 | list_for_each(p, &subs->fmt_list) { |
| 1638 | struct audioformat *fp; |
| 1639 | fp = list_entry(p, struct audioformat, list); |
| 1640 | if (! hw_check_valid_format(params, fp)) |
| 1641 | continue; |
| 1642 | if (changed++) { |
| 1643 | if (rmin > fp->channels) |
| 1644 | rmin = fp->channels; |
| 1645 | if (rmax < fp->channels) |
| 1646 | rmax = fp->channels; |
| 1647 | } else { |
| 1648 | rmin = fp->channels; |
| 1649 | rmax = fp->channels; |
| 1650 | } |
| 1651 | } |
| 1652 | |
| 1653 | if (! changed) { |
| 1654 | hwc_debug(" --> get empty\n"); |
| 1655 | it->empty = 1; |
| 1656 | return -EINVAL; |
| 1657 | } |
| 1658 | |
| 1659 | changed = 0; |
| 1660 | if (it->min < rmin) { |
| 1661 | it->min = rmin; |
| 1662 | it->openmin = 0; |
| 1663 | changed = 1; |
| 1664 | } |
| 1665 | if (it->max > rmax) { |
| 1666 | it->max = rmax; |
| 1667 | it->openmax = 0; |
| 1668 | changed = 1; |
| 1669 | } |
| 1670 | if (snd_interval_checkempty(it)) { |
| 1671 | it->empty = 1; |
| 1672 | return -EINVAL; |
| 1673 | } |
| 1674 | hwc_debug(" --> (%d, %d) (changed = %d)\n", it->min, it->max, changed); |
| 1675 | return changed; |
| 1676 | } |
| 1677 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1678 | static int hw_rule_format(struct snd_pcm_hw_params *params, |
| 1679 | struct snd_pcm_hw_rule *rule) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1680 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1681 | struct snd_usb_substream *subs = rule->private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | struct list_head *p; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1683 | struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | u64 fbits; |
| 1685 | u32 oldbits[2]; |
| 1686 | int changed; |
| 1687 | |
| 1688 | hwc_debug("hw_rule_format: %x:%x\n", fmt->bits[0], fmt->bits[1]); |
| 1689 | fbits = 0; |
| 1690 | list_for_each(p, &subs->fmt_list) { |
| 1691 | struct audioformat *fp; |
| 1692 | fp = list_entry(p, struct audioformat, list); |
| 1693 | if (! hw_check_valid_format(params, fp)) |
| 1694 | continue; |
| 1695 | fbits |= (1ULL << fp->format); |
| 1696 | } |
| 1697 | |
| 1698 | oldbits[0] = fmt->bits[0]; |
| 1699 | oldbits[1] = fmt->bits[1]; |
| 1700 | fmt->bits[0] &= (u32)fbits; |
| 1701 | fmt->bits[1] &= (u32)(fbits >> 32); |
| 1702 | if (! fmt->bits[0] && ! fmt->bits[1]) { |
| 1703 | hwc_debug(" --> get empty\n"); |
| 1704 | return -EINVAL; |
| 1705 | } |
| 1706 | changed = (oldbits[0] != fmt->bits[0] || oldbits[1] != fmt->bits[1]); |
| 1707 | hwc_debug(" --> %x:%x (changed = %d)\n", fmt->bits[0], fmt->bits[1], changed); |
| 1708 | return changed; |
| 1709 | } |
| 1710 | |
| 1711 | #define MAX_MASK 64 |
| 1712 | |
| 1713 | /* |
| 1714 | * check whether the registered audio formats need special hw-constraints |
| 1715 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1716 | static int check_hw_params_convention(struct snd_usb_substream *subs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | { |
| 1718 | int i; |
| 1719 | u32 *channels; |
| 1720 | u32 *rates; |
| 1721 | u32 cmaster, rmaster; |
| 1722 | u32 rate_min = 0, rate_max = 0; |
| 1723 | struct list_head *p; |
| 1724 | int err = 1; |
| 1725 | |
| 1726 | channels = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL); |
| 1727 | rates = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL); |
| 1728 | |
| 1729 | list_for_each(p, &subs->fmt_list) { |
| 1730 | struct audioformat *f; |
| 1731 | f = list_entry(p, struct audioformat, list); |
| 1732 | /* unconventional channels? */ |
| 1733 | if (f->channels > 32) |
| 1734 | goto __out; |
| 1735 | /* continuous rate min/max matches? */ |
| 1736 | if (f->rates & SNDRV_PCM_RATE_CONTINUOUS) { |
| 1737 | if (rate_min && f->rate_min != rate_min) |
| 1738 | goto __out; |
| 1739 | if (rate_max && f->rate_max != rate_max) |
| 1740 | goto __out; |
| 1741 | rate_min = f->rate_min; |
| 1742 | rate_max = f->rate_max; |
| 1743 | } |
| 1744 | /* combination of continuous rates and fixed rates? */ |
| 1745 | if (rates[f->format] & SNDRV_PCM_RATE_CONTINUOUS) { |
| 1746 | if (f->rates != rates[f->format]) |
| 1747 | goto __out; |
| 1748 | } |
| 1749 | if (f->rates & SNDRV_PCM_RATE_CONTINUOUS) { |
| 1750 | if (rates[f->format] && rates[f->format] != f->rates) |
| 1751 | goto __out; |
| 1752 | } |
| 1753 | channels[f->format] |= (1 << f->channels); |
| 1754 | rates[f->format] |= f->rates; |
| 1755 | } |
| 1756 | /* check whether channels and rates match for all formats */ |
| 1757 | cmaster = rmaster = 0; |
| 1758 | for (i = 0; i < MAX_MASK; i++) { |
| 1759 | if (cmaster != channels[i] && cmaster && channels[i]) |
| 1760 | goto __out; |
| 1761 | if (rmaster != rates[i] && rmaster && rates[i]) |
| 1762 | goto __out; |
| 1763 | if (channels[i]) |
| 1764 | cmaster = channels[i]; |
| 1765 | if (rates[i]) |
| 1766 | rmaster = rates[i]; |
| 1767 | } |
| 1768 | /* check whether channels match for all distinct rates */ |
| 1769 | memset(channels, 0, MAX_MASK * sizeof(u32)); |
| 1770 | list_for_each(p, &subs->fmt_list) { |
| 1771 | struct audioformat *f; |
| 1772 | f = list_entry(p, struct audioformat, list); |
| 1773 | if (f->rates & SNDRV_PCM_RATE_CONTINUOUS) |
| 1774 | continue; |
| 1775 | for (i = 0; i < 32; i++) { |
| 1776 | if (f->rates & (1 << i)) |
| 1777 | channels[i] |= (1 << f->channels); |
| 1778 | } |
| 1779 | } |
| 1780 | cmaster = 0; |
| 1781 | for (i = 0; i < 32; i++) { |
| 1782 | if (cmaster != channels[i] && cmaster && channels[i]) |
| 1783 | goto __out; |
| 1784 | if (channels[i]) |
| 1785 | cmaster = channels[i]; |
| 1786 | } |
| 1787 | err = 0; |
| 1788 | |
| 1789 | __out: |
| 1790 | kfree(channels); |
| 1791 | kfree(rates); |
| 1792 | return err; |
| 1793 | } |
| 1794 | |
| 1795 | |
| 1796 | /* |
| 1797 | * set up the runtime hardware information. |
| 1798 | */ |
| 1799 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1800 | static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1801 | { |
| 1802 | struct list_head *p; |
| 1803 | int err; |
| 1804 | |
| 1805 | runtime->hw.formats = subs->formats; |
| 1806 | |
| 1807 | runtime->hw.rate_min = 0x7fffffff; |
| 1808 | runtime->hw.rate_max = 0; |
| 1809 | runtime->hw.channels_min = 256; |
| 1810 | runtime->hw.channels_max = 0; |
| 1811 | runtime->hw.rates = 0; |
| 1812 | /* check min/max rates and channels */ |
| 1813 | list_for_each(p, &subs->fmt_list) { |
| 1814 | struct audioformat *fp; |
| 1815 | fp = list_entry(p, struct audioformat, list); |
| 1816 | runtime->hw.rates |= fp->rates; |
| 1817 | if (runtime->hw.rate_min > fp->rate_min) |
| 1818 | runtime->hw.rate_min = fp->rate_min; |
| 1819 | if (runtime->hw.rate_max < fp->rate_max) |
| 1820 | runtime->hw.rate_max = fp->rate_max; |
| 1821 | if (runtime->hw.channels_min > fp->channels) |
| 1822 | runtime->hw.channels_min = fp->channels; |
| 1823 | if (runtime->hw.channels_max < fp->channels) |
| 1824 | runtime->hw.channels_max = fp->channels; |
| 1825 | if (fp->fmt_type == USB_FORMAT_TYPE_II && fp->frame_size > 0) { |
| 1826 | /* FIXME: there might be more than one audio formats... */ |
| 1827 | runtime->hw.period_bytes_min = runtime->hw.period_bytes_max = |
| 1828 | fp->frame_size; |
| 1829 | } |
| 1830 | } |
| 1831 | |
| 1832 | /* set the period time minimum 1ms */ |
| 1833 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, |
| 1834 | 1000 * MIN_PACKS_URB, |
| 1835 | /*(nrpacks * MAX_URBS) * 1000*/ UINT_MAX); |
| 1836 | |
| 1837 | if (check_hw_params_convention(subs)) { |
| 1838 | hwc_debug("setting extra hw constraints...\n"); |
| 1839 | if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, |
| 1840 | hw_rule_rate, subs, |
| 1841 | SNDRV_PCM_HW_PARAM_FORMAT, |
| 1842 | SNDRV_PCM_HW_PARAM_CHANNELS, |
| 1843 | -1)) < 0) |
| 1844 | return err; |
| 1845 | if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
| 1846 | hw_rule_channels, subs, |
| 1847 | SNDRV_PCM_HW_PARAM_FORMAT, |
| 1848 | SNDRV_PCM_HW_PARAM_RATE, |
| 1849 | -1)) < 0) |
| 1850 | return err; |
| 1851 | if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, |
| 1852 | hw_rule_format, subs, |
| 1853 | SNDRV_PCM_HW_PARAM_RATE, |
| 1854 | SNDRV_PCM_HW_PARAM_CHANNELS, |
| 1855 | -1)) < 0) |
| 1856 | return err; |
| 1857 | } |
| 1858 | return 0; |
| 1859 | } |
| 1860 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1861 | static int snd_usb_pcm_open(struct snd_pcm_substream *substream, int direction, |
| 1862 | struct snd_pcm_hardware *hw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1864 | struct snd_usb_stream *as = snd_pcm_substream_chip(substream); |
| 1865 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 1866 | struct snd_usb_substream *subs = &as->substream[direction]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1867 | |
| 1868 | subs->interface = -1; |
| 1869 | subs->format = 0; |
| 1870 | runtime->hw = *hw; |
| 1871 | runtime->private_data = subs; |
| 1872 | subs->pcm_substream = substream; |
| 1873 | return setup_hw_info(runtime, subs); |
| 1874 | } |
| 1875 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1876 | static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1877 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1878 | struct snd_usb_stream *as = snd_pcm_substream_chip(substream); |
| 1879 | struct snd_usb_substream *subs = &as->substream[direction]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1880 | |
| 1881 | if (subs->interface >= 0) { |
| 1882 | usb_set_interface(subs->dev, subs->interface, 0); |
| 1883 | subs->interface = -1; |
| 1884 | } |
| 1885 | subs->pcm_substream = NULL; |
| 1886 | return 0; |
| 1887 | } |
| 1888 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1889 | static int snd_usb_playback_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1890 | { |
| 1891 | return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_PLAYBACK, &snd_usb_playback); |
| 1892 | } |
| 1893 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1894 | static int snd_usb_playback_close(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1895 | { |
| 1896 | return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_PLAYBACK); |
| 1897 | } |
| 1898 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1899 | static int snd_usb_capture_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | { |
| 1901 | return snd_usb_pcm_open(substream, SNDRV_PCM_STREAM_CAPTURE, &snd_usb_capture); |
| 1902 | } |
| 1903 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1904 | static int snd_usb_capture_close(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1905 | { |
| 1906 | return snd_usb_pcm_close(substream, SNDRV_PCM_STREAM_CAPTURE); |
| 1907 | } |
| 1908 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1909 | static struct snd_pcm_ops snd_usb_playback_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1910 | .open = snd_usb_playback_open, |
| 1911 | .close = snd_usb_playback_close, |
| 1912 | .ioctl = snd_pcm_lib_ioctl, |
| 1913 | .hw_params = snd_usb_hw_params, |
| 1914 | .hw_free = snd_usb_hw_free, |
| 1915 | .prepare = snd_usb_pcm_prepare, |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 1916 | .trigger = snd_usb_pcm_playback_trigger, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1917 | .pointer = snd_usb_pcm_pointer, |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 1918 | .page = snd_pcm_get_vmalloc_page, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1919 | }; |
| 1920 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 1921 | static struct snd_pcm_ops snd_usb_capture_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1922 | .open = snd_usb_capture_open, |
| 1923 | .close = snd_usb_capture_close, |
| 1924 | .ioctl = snd_pcm_lib_ioctl, |
| 1925 | .hw_params = snd_usb_hw_params, |
| 1926 | .hw_free = snd_usb_hw_free, |
| 1927 | .prepare = snd_usb_pcm_prepare, |
Clemens Ladisch | b55bbf0 | 2005-11-02 11:32:52 +0100 | [diff] [blame] | 1928 | .trigger = snd_usb_pcm_capture_trigger, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | .pointer = snd_usb_pcm_pointer, |
Clemens Ladisch | 6207e51 | 2005-08-15 08:35:25 +0200 | [diff] [blame] | 1930 | .page = snd_pcm_get_vmalloc_page, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1931 | }; |
| 1932 | |
| 1933 | |
| 1934 | |
| 1935 | /* |
| 1936 | * helper functions |
| 1937 | */ |
| 1938 | |
| 1939 | /* |
| 1940 | * combine bytes and get an integer value |
| 1941 | */ |
| 1942 | unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size) |
| 1943 | { |
| 1944 | switch (size) { |
| 1945 | case 1: return *bytes; |
| 1946 | case 2: return combine_word(bytes); |
| 1947 | case 3: return combine_triple(bytes); |
| 1948 | case 4: return combine_quad(bytes); |
| 1949 | default: return 0; |
| 1950 | } |
| 1951 | } |
| 1952 | |
| 1953 | /* |
| 1954 | * parse descriptor buffer and return the pointer starting the given |
| 1955 | * descriptor type. |
| 1956 | */ |
| 1957 | void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype) |
| 1958 | { |
| 1959 | u8 *p, *end, *next; |
| 1960 | |
| 1961 | p = descstart; |
| 1962 | end = p + desclen; |
| 1963 | for (; p < end;) { |
| 1964 | if (p[0] < 2) |
| 1965 | return NULL; |
| 1966 | next = p + p[0]; |
| 1967 | if (next > end) |
| 1968 | return NULL; |
| 1969 | if (p[1] == dtype && (!after || (void *)p > after)) { |
| 1970 | return p; |
| 1971 | } |
| 1972 | p = next; |
| 1973 | } |
| 1974 | return NULL; |
| 1975 | } |
| 1976 | |
| 1977 | /* |
| 1978 | * find a class-specified interface descriptor with the given subtype. |
| 1979 | */ |
| 1980 | void *snd_usb_find_csint_desc(void *buffer, int buflen, void *after, u8 dsubtype) |
| 1981 | { |
| 1982 | unsigned char *p = after; |
| 1983 | |
| 1984 | while ((p = snd_usb_find_desc(buffer, buflen, p, |
| 1985 | USB_DT_CS_INTERFACE)) != NULL) { |
| 1986 | if (p[0] >= 3 && p[2] == dsubtype) |
| 1987 | return p; |
| 1988 | } |
| 1989 | return NULL; |
| 1990 | } |
| 1991 | |
| 1992 | /* |
| 1993 | * Wrapper for usb_control_msg(). |
| 1994 | * Allocates a temp buffer to prevent dmaing from/to the stack. |
| 1995 | */ |
| 1996 | int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, |
| 1997 | __u8 requesttype, __u16 value, __u16 index, void *data, |
| 1998 | __u16 size, int timeout) |
| 1999 | { |
| 2000 | int err; |
| 2001 | void *buf = NULL; |
| 2002 | |
| 2003 | if (size > 0) { |
| 2004 | buf = kmalloc(size, GFP_KERNEL); |
| 2005 | if (!buf) |
| 2006 | return -ENOMEM; |
| 2007 | memcpy(buf, data, size); |
| 2008 | } |
| 2009 | err = usb_control_msg(dev, pipe, request, requesttype, |
| 2010 | value, index, buf, size, timeout); |
| 2011 | if (size > 0) { |
| 2012 | memcpy(data, buf, size); |
| 2013 | kfree(buf); |
| 2014 | } |
| 2015 | return err; |
| 2016 | } |
| 2017 | |
| 2018 | |
| 2019 | /* |
| 2020 | * entry point for linux usb interface |
| 2021 | */ |
| 2022 | |
| 2023 | static int usb_audio_probe(struct usb_interface *intf, |
| 2024 | const struct usb_device_id *id); |
| 2025 | static void usb_audio_disconnect(struct usb_interface *intf); |
| 2026 | |
| 2027 | static struct usb_device_id usb_audio_ids [] = { |
| 2028 | #include "usbquirks.h" |
| 2029 | { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS), |
| 2030 | .bInterfaceClass = USB_CLASS_AUDIO, |
| 2031 | .bInterfaceSubClass = USB_SUBCLASS_AUDIO_CONTROL }, |
| 2032 | { } /* Terminating entry */ |
| 2033 | }; |
| 2034 | |
| 2035 | MODULE_DEVICE_TABLE (usb, usb_audio_ids); |
| 2036 | |
| 2037 | static struct usb_driver usb_audio_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2038 | .name = "snd-usb-audio", |
| 2039 | .probe = usb_audio_probe, |
| 2040 | .disconnect = usb_audio_disconnect, |
| 2041 | .id_table = usb_audio_ids, |
| 2042 | }; |
| 2043 | |
| 2044 | |
Jaroslav Kysela | 21a3479 | 2006-01-13 09:12:11 +0100 | [diff] [blame] | 2045 | #if defined(CONFIG_PROCFS) && defined(CONFIG_SND_VERBOSE_PROCFS) |
| 2046 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2047 | /* |
| 2048 | * proc interface for list the supported pcm formats |
| 2049 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2050 | static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2051 | { |
| 2052 | struct list_head *p; |
| 2053 | static char *sync_types[4] = { |
| 2054 | "NONE", "ASYNC", "ADAPTIVE", "SYNC" |
| 2055 | }; |
| 2056 | |
| 2057 | list_for_each(p, &subs->fmt_list) { |
| 2058 | struct audioformat *fp; |
| 2059 | fp = list_entry(p, struct audioformat, list); |
| 2060 | snd_iprintf(buffer, " Interface %d\n", fp->iface); |
| 2061 | snd_iprintf(buffer, " Altset %d\n", fp->altsetting); |
Jaroslav Kysela | 3f72a30 | 2006-01-18 11:50:40 +0100 | [diff] [blame] | 2062 | snd_iprintf(buffer, " Format: 0x%x\n", fp->format); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2063 | snd_iprintf(buffer, " Channels: %d\n", fp->channels); |
| 2064 | snd_iprintf(buffer, " Endpoint: %d %s (%s)\n", |
| 2065 | fp->endpoint & USB_ENDPOINT_NUMBER_MASK, |
| 2066 | fp->endpoint & USB_DIR_IN ? "IN" : "OUT", |
| 2067 | sync_types[(fp->ep_attr & EP_ATTR_MASK) >> 2]); |
| 2068 | if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { |
| 2069 | snd_iprintf(buffer, " Rates: %d - %d (continuous)\n", |
| 2070 | fp->rate_min, fp->rate_max); |
| 2071 | } else { |
| 2072 | unsigned int i; |
| 2073 | snd_iprintf(buffer, " Rates: "); |
| 2074 | for (i = 0; i < fp->nr_rates; i++) { |
| 2075 | if (i > 0) |
| 2076 | snd_iprintf(buffer, ", "); |
| 2077 | snd_iprintf(buffer, "%d", fp->rate_table[i]); |
| 2078 | } |
| 2079 | snd_iprintf(buffer, "\n"); |
| 2080 | } |
| 2081 | // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); |
| 2082 | // snd_iprintf(buffer, " EP Attribute = 0x%x\n", fp->attributes); |
| 2083 | } |
| 2084 | } |
| 2085 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2086 | static void proc_dump_substream_status(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2087 | { |
| 2088 | if (subs->running) { |
| 2089 | unsigned int i; |
| 2090 | snd_iprintf(buffer, " Status: Running\n"); |
| 2091 | snd_iprintf(buffer, " Interface = %d\n", subs->interface); |
| 2092 | snd_iprintf(buffer, " Altset = %d\n", subs->format); |
| 2093 | snd_iprintf(buffer, " URBs = %d [ ", subs->nurbs); |
| 2094 | for (i = 0; i < subs->nurbs; i++) |
| 2095 | snd_iprintf(buffer, "%d ", subs->dataurb[i].packets); |
| 2096 | snd_iprintf(buffer, "]\n"); |
| 2097 | snd_iprintf(buffer, " Packet Size = %d\n", subs->curpacksize); |
Clemens Ladisch | 08fe158 | 2005-04-22 15:33:01 +0200 | [diff] [blame] | 2098 | snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2099 | snd_usb_get_speed(subs->dev) == USB_SPEED_FULL |
| 2100 | ? get_full_speed_hz(subs->freqm) |
Clemens Ladisch | 08fe158 | 2005-04-22 15:33:01 +0200 | [diff] [blame] | 2101 | : get_high_speed_hz(subs->freqm), |
| 2102 | subs->freqm >> 16, subs->freqm & 0xffff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2103 | } else { |
| 2104 | snd_iprintf(buffer, " Status: Stop\n"); |
| 2105 | } |
| 2106 | } |
| 2107 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2108 | static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2109 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2110 | struct snd_usb_stream *stream = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2111 | |
| 2112 | snd_iprintf(buffer, "%s : %s\n", stream->chip->card->longname, stream->pcm->name); |
| 2113 | |
| 2114 | if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) { |
| 2115 | snd_iprintf(buffer, "\nPlayback:\n"); |
| 2116 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); |
| 2117 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); |
| 2118 | } |
| 2119 | if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) { |
| 2120 | snd_iprintf(buffer, "\nCapture:\n"); |
| 2121 | proc_dump_substream_status(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); |
| 2122 | proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); |
| 2123 | } |
| 2124 | } |
| 2125 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2126 | static void proc_pcm_format_add(struct snd_usb_stream *stream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2127 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2128 | struct snd_info_entry *entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2129 | char name[32]; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2130 | struct snd_card *card = stream->chip->card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2131 | |
| 2132 | sprintf(name, "stream%d", stream->pcm_index); |
| 2133 | if (! snd_card_proc_new(card, name, &entry)) |
| 2134 | snd_info_set_text_ops(entry, stream, 1024, proc_pcm_format_read); |
| 2135 | } |
| 2136 | |
Jaroslav Kysela | 21a3479 | 2006-01-13 09:12:11 +0100 | [diff] [blame] | 2137 | #else |
| 2138 | |
| 2139 | static inline void proc_pcm_format_add(struct snd_usb_stream *stream) |
| 2140 | { |
| 2141 | } |
| 2142 | |
| 2143 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2144 | |
| 2145 | /* |
| 2146 | * initialize the substream instance. |
| 2147 | */ |
| 2148 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2149 | static void init_substream(struct snd_usb_stream *as, int stream, struct audioformat *fp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2150 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2151 | struct snd_usb_substream *subs = &as->substream[stream]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2152 | |
| 2153 | INIT_LIST_HEAD(&subs->fmt_list); |
| 2154 | spin_lock_init(&subs->lock); |
| 2155 | |
| 2156 | subs->stream = as; |
| 2157 | subs->direction = stream; |
| 2158 | subs->dev = as->chip->dev; |
| 2159 | if (snd_usb_get_speed(subs->dev) == USB_SPEED_FULL) |
| 2160 | subs->ops = audio_urb_ops[stream]; |
| 2161 | else |
| 2162 | subs->ops = audio_urb_ops_high_speed[stream]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2163 | snd_pcm_set_ops(as->pcm, stream, |
| 2164 | stream == SNDRV_PCM_STREAM_PLAYBACK ? |
| 2165 | &snd_usb_playback_ops : &snd_usb_capture_ops); |
| 2166 | |
| 2167 | list_add_tail(&fp->list, &subs->fmt_list); |
| 2168 | subs->formats |= 1ULL << fp->format; |
| 2169 | subs->endpoint = fp->endpoint; |
| 2170 | subs->num_formats++; |
| 2171 | subs->fmt_type = fp->fmt_type; |
| 2172 | } |
| 2173 | |
| 2174 | |
| 2175 | /* |
| 2176 | * free a substream |
| 2177 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2178 | static void free_substream(struct snd_usb_substream *subs) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | { |
| 2180 | struct list_head *p, *n; |
| 2181 | |
| 2182 | if (! subs->num_formats) |
| 2183 | return; /* not initialized */ |
| 2184 | list_for_each_safe(p, n, &subs->fmt_list) { |
| 2185 | struct audioformat *fp = list_entry(p, struct audioformat, list); |
| 2186 | kfree(fp->rate_table); |
| 2187 | kfree(fp); |
| 2188 | } |
| 2189 | } |
| 2190 | |
| 2191 | |
| 2192 | /* |
| 2193 | * free a usb stream instance |
| 2194 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2195 | static void snd_usb_audio_stream_free(struct snd_usb_stream *stream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2196 | { |
| 2197 | free_substream(&stream->substream[0]); |
| 2198 | free_substream(&stream->substream[1]); |
| 2199 | list_del(&stream->list); |
| 2200 | kfree(stream); |
| 2201 | } |
| 2202 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2203 | static void snd_usb_audio_pcm_free(struct snd_pcm *pcm) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2204 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2205 | struct snd_usb_stream *stream = pcm->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2206 | if (stream) { |
| 2207 | stream->pcm = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2208 | snd_usb_audio_stream_free(stream); |
| 2209 | } |
| 2210 | } |
| 2211 | |
| 2212 | |
| 2213 | /* |
| 2214 | * add this endpoint to the chip instance. |
| 2215 | * if a stream with the same endpoint already exists, append to it. |
| 2216 | * if not, create a new pcm stream. |
| 2217 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2218 | static int add_audio_endpoint(struct snd_usb_audio *chip, int stream, struct audioformat *fp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2219 | { |
| 2220 | struct list_head *p; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2221 | struct snd_usb_stream *as; |
| 2222 | struct snd_usb_substream *subs; |
| 2223 | struct snd_pcm *pcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2224 | int err; |
| 2225 | |
| 2226 | list_for_each(p, &chip->pcm_list) { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2227 | as = list_entry(p, struct snd_usb_stream, list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2228 | if (as->fmt_type != fp->fmt_type) |
| 2229 | continue; |
| 2230 | subs = &as->substream[stream]; |
| 2231 | if (! subs->endpoint) |
| 2232 | continue; |
| 2233 | if (subs->endpoint == fp->endpoint) { |
| 2234 | list_add_tail(&fp->list, &subs->fmt_list); |
| 2235 | subs->num_formats++; |
| 2236 | subs->formats |= 1ULL << fp->format; |
| 2237 | return 0; |
| 2238 | } |
| 2239 | } |
| 2240 | /* look for an empty stream */ |
| 2241 | list_for_each(p, &chip->pcm_list) { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2242 | as = list_entry(p, struct snd_usb_stream, list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2243 | if (as->fmt_type != fp->fmt_type) |
| 2244 | continue; |
| 2245 | subs = &as->substream[stream]; |
| 2246 | if (subs->endpoint) |
| 2247 | continue; |
| 2248 | err = snd_pcm_new_stream(as->pcm, stream, 1); |
| 2249 | if (err < 0) |
| 2250 | return err; |
| 2251 | init_substream(as, stream, fp); |
| 2252 | return 0; |
| 2253 | } |
| 2254 | |
| 2255 | /* create a new pcm */ |
| 2256 | as = kmalloc(sizeof(*as), GFP_KERNEL); |
| 2257 | if (! as) |
| 2258 | return -ENOMEM; |
| 2259 | memset(as, 0, sizeof(*as)); |
| 2260 | as->pcm_index = chip->pcm_devs; |
| 2261 | as->chip = chip; |
| 2262 | as->fmt_type = fp->fmt_type; |
| 2263 | err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs, |
| 2264 | stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0, |
| 2265 | stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1, |
| 2266 | &pcm); |
| 2267 | if (err < 0) { |
| 2268 | kfree(as); |
| 2269 | return err; |
| 2270 | } |
| 2271 | as->pcm = pcm; |
| 2272 | pcm->private_data = as; |
| 2273 | pcm->private_free = snd_usb_audio_pcm_free; |
| 2274 | pcm->info_flags = 0; |
| 2275 | if (chip->pcm_devs > 0) |
| 2276 | sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs); |
| 2277 | else |
| 2278 | strcpy(pcm->name, "USB Audio"); |
| 2279 | |
| 2280 | init_substream(as, stream, fp); |
| 2281 | |
| 2282 | list_add(&as->list, &chip->pcm_list); |
| 2283 | chip->pcm_devs++; |
| 2284 | |
| 2285 | proc_pcm_format_add(as); |
| 2286 | |
| 2287 | return 0; |
| 2288 | } |
| 2289 | |
| 2290 | |
| 2291 | /* |
| 2292 | * check if the device uses big-endian samples |
| 2293 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2294 | static int is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *fp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2295 | { |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2296 | switch (chip->usb_id) { |
| 2297 | case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */ |
| 2298 | if (fp->endpoint & USB_DIR_IN) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2299 | return 1; |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2300 | break; |
| 2301 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ |
| 2302 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2303 | } |
| 2304 | return 0; |
| 2305 | } |
| 2306 | |
| 2307 | /* |
| 2308 | * parse the audio format type I descriptor |
| 2309 | * and returns the corresponding pcm format |
| 2310 | * |
| 2311 | * @dev: usb device |
| 2312 | * @fp: audioformat record |
| 2313 | * @format: the format tag (wFormatTag) |
| 2314 | * @fmt: the format type descriptor |
| 2315 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2316 | static int parse_audio_format_i_type(struct snd_usb_audio *chip, struct audioformat *fp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2317 | int format, unsigned char *fmt) |
| 2318 | { |
| 2319 | int pcm_format; |
| 2320 | int sample_width, sample_bytes; |
| 2321 | |
| 2322 | /* FIXME: correct endianess and sign? */ |
| 2323 | pcm_format = -1; |
| 2324 | sample_width = fmt[6]; |
| 2325 | sample_bytes = fmt[5]; |
| 2326 | switch (format) { |
| 2327 | case 0: /* some devices don't define this correctly... */ |
| 2328 | snd_printdd(KERN_INFO "%d:%u:%d : format type 0 is detected, processed as PCM\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2329 | chip->dev->devnum, fp->iface, fp->altsetting); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2330 | /* fall-through */ |
| 2331 | case USB_AUDIO_FORMAT_PCM: |
| 2332 | if (sample_width > sample_bytes * 8) { |
| 2333 | snd_printk(KERN_INFO "%d:%u:%d : sample bitwidth %d in over sample bytes %d\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2334 | chip->dev->devnum, fp->iface, fp->altsetting, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2335 | sample_width, sample_bytes); |
| 2336 | } |
| 2337 | /* check the format byte size */ |
| 2338 | switch (fmt[5]) { |
| 2339 | case 1: |
| 2340 | pcm_format = SNDRV_PCM_FORMAT_S8; |
| 2341 | break; |
| 2342 | case 2: |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2343 | if (is_big_endian_format(chip, fp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2344 | pcm_format = SNDRV_PCM_FORMAT_S16_BE; /* grrr, big endian!! */ |
| 2345 | else |
| 2346 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; |
| 2347 | break; |
| 2348 | case 3: |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2349 | if (is_big_endian_format(chip, fp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2350 | pcm_format = SNDRV_PCM_FORMAT_S24_3BE; /* grrr, big endian!! */ |
| 2351 | else |
| 2352 | pcm_format = SNDRV_PCM_FORMAT_S24_3LE; |
| 2353 | break; |
| 2354 | case 4: |
| 2355 | pcm_format = SNDRV_PCM_FORMAT_S32_LE; |
| 2356 | break; |
| 2357 | default: |
| 2358 | snd_printk(KERN_INFO "%d:%u:%d : unsupported sample bitwidth %d in %d bytes\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2359 | chip->dev->devnum, fp->iface, |
| 2360 | fp->altsetting, sample_width, sample_bytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2361 | break; |
| 2362 | } |
| 2363 | break; |
| 2364 | case USB_AUDIO_FORMAT_PCM8: |
| 2365 | /* Dallas DS4201 workaround */ |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2366 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2367 | pcm_format = SNDRV_PCM_FORMAT_S8; |
| 2368 | else |
| 2369 | pcm_format = SNDRV_PCM_FORMAT_U8; |
| 2370 | break; |
| 2371 | case USB_AUDIO_FORMAT_IEEE_FLOAT: |
| 2372 | pcm_format = SNDRV_PCM_FORMAT_FLOAT_LE; |
| 2373 | break; |
| 2374 | case USB_AUDIO_FORMAT_ALAW: |
| 2375 | pcm_format = SNDRV_PCM_FORMAT_A_LAW; |
| 2376 | break; |
| 2377 | case USB_AUDIO_FORMAT_MU_LAW: |
| 2378 | pcm_format = SNDRV_PCM_FORMAT_MU_LAW; |
| 2379 | break; |
| 2380 | default: |
| 2381 | snd_printk(KERN_INFO "%d:%u:%d : unsupported format type %d\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2382 | chip->dev->devnum, fp->iface, fp->altsetting, format); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2383 | break; |
| 2384 | } |
| 2385 | return pcm_format; |
| 2386 | } |
| 2387 | |
| 2388 | |
| 2389 | /* |
| 2390 | * parse the format descriptor and stores the possible sample rates |
| 2391 | * on the audioformat table. |
| 2392 | * |
| 2393 | * @dev: usb device |
| 2394 | * @fp: audioformat record |
| 2395 | * @fmt: the format descriptor |
| 2396 | * @offset: the start offset of descriptor pointing the rate type |
| 2397 | * (7 for type I and II, 8 for type II) |
| 2398 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2399 | static int parse_audio_format_rates(struct snd_usb_audio *chip, struct audioformat *fp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2400 | unsigned char *fmt, int offset) |
| 2401 | { |
| 2402 | int nr_rates = fmt[offset]; |
| 2403 | if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) { |
| 2404 | snd_printk(KERN_ERR "%d:%u:%d : invalid FORMAT_TYPE desc\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2405 | chip->dev->devnum, fp->iface, fp->altsetting); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2406 | return -1; |
| 2407 | } |
| 2408 | |
| 2409 | if (nr_rates) { |
| 2410 | /* |
| 2411 | * build the rate table and bitmap flags |
| 2412 | */ |
| 2413 | int r, idx, c; |
| 2414 | /* this table corresponds to the SNDRV_PCM_RATE_XXX bit */ |
| 2415 | static unsigned int conv_rates[] = { |
| 2416 | 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000, |
| 2417 | 64000, 88200, 96000, 176400, 192000 |
| 2418 | }; |
| 2419 | fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL); |
| 2420 | if (fp->rate_table == NULL) { |
| 2421 | snd_printk(KERN_ERR "cannot malloc\n"); |
| 2422 | return -1; |
| 2423 | } |
| 2424 | |
| 2425 | fp->nr_rates = nr_rates; |
| 2426 | fp->rate_min = fp->rate_max = combine_triple(&fmt[8]); |
| 2427 | for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) { |
| 2428 | unsigned int rate = fp->rate_table[r] = combine_triple(&fmt[idx]); |
| 2429 | if (rate < fp->rate_min) |
| 2430 | fp->rate_min = rate; |
| 2431 | else if (rate > fp->rate_max) |
| 2432 | fp->rate_max = rate; |
| 2433 | for (c = 0; c < (int)ARRAY_SIZE(conv_rates); c++) { |
| 2434 | if (rate == conv_rates[c]) { |
| 2435 | fp->rates |= (1 << c); |
| 2436 | break; |
| 2437 | } |
| 2438 | } |
| 2439 | } |
| 2440 | } else { |
| 2441 | /* continuous rates */ |
| 2442 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; |
| 2443 | fp->rate_min = combine_triple(&fmt[offset + 1]); |
| 2444 | fp->rate_max = combine_triple(&fmt[offset + 4]); |
| 2445 | } |
| 2446 | return 0; |
| 2447 | } |
| 2448 | |
| 2449 | /* |
| 2450 | * parse the format type I and III descriptors |
| 2451 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2452 | static int parse_audio_format_i(struct snd_usb_audio *chip, struct audioformat *fp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2453 | int format, unsigned char *fmt) |
| 2454 | { |
| 2455 | int pcm_format; |
| 2456 | |
| 2457 | if (fmt[3] == USB_FORMAT_TYPE_III) { |
| 2458 | /* FIXME: the format type is really IECxxx |
| 2459 | * but we give normal PCM format to get the existing |
| 2460 | * apps working... |
| 2461 | */ |
| 2462 | pcm_format = SNDRV_PCM_FORMAT_S16_LE; |
| 2463 | } else { |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2464 | pcm_format = parse_audio_format_i_type(chip, fp, format, fmt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2465 | if (pcm_format < 0) |
| 2466 | return -1; |
| 2467 | } |
| 2468 | fp->format = pcm_format; |
| 2469 | fp->channels = fmt[4]; |
| 2470 | if (fp->channels < 1) { |
| 2471 | snd_printk(KERN_ERR "%d:%u:%d : invalid channels %d\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2472 | chip->dev->devnum, fp->iface, fp->altsetting, fp->channels); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2473 | return -1; |
| 2474 | } |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2475 | return parse_audio_format_rates(chip, fp, fmt, 7); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2476 | } |
| 2477 | |
| 2478 | /* |
| 2479 | * prase the format type II descriptor |
| 2480 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2481 | static int parse_audio_format_ii(struct snd_usb_audio *chip, struct audioformat *fp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2482 | int format, unsigned char *fmt) |
| 2483 | { |
| 2484 | int brate, framesize; |
| 2485 | switch (format) { |
| 2486 | case USB_AUDIO_FORMAT_AC3: |
| 2487 | /* FIXME: there is no AC3 format defined yet */ |
| 2488 | // fp->format = SNDRV_PCM_FORMAT_AC3; |
| 2489 | fp->format = SNDRV_PCM_FORMAT_U8; /* temporarily hack to receive byte streams */ |
| 2490 | break; |
| 2491 | case USB_AUDIO_FORMAT_MPEG: |
| 2492 | fp->format = SNDRV_PCM_FORMAT_MPEG; |
| 2493 | break; |
| 2494 | default: |
| 2495 | snd_printd(KERN_INFO "%d:%u:%d : unknown format tag 0x%x is detected. processed as MPEG.\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2496 | chip->dev->devnum, fp->iface, fp->altsetting, format); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2497 | fp->format = SNDRV_PCM_FORMAT_MPEG; |
| 2498 | break; |
| 2499 | } |
| 2500 | fp->channels = 1; |
| 2501 | brate = combine_word(&fmt[4]); /* fmt[4,5] : wMaxBitRate (in kbps) */ |
| 2502 | framesize = combine_word(&fmt[6]); /* fmt[6,7]: wSamplesPerFrame */ |
| 2503 | snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); |
| 2504 | fp->frame_size = framesize; |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2505 | return parse_audio_format_rates(chip, fp, fmt, 8); /* fmt[8..] sample rates */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2506 | } |
| 2507 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2508 | static int parse_audio_format(struct snd_usb_audio *chip, struct audioformat *fp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2509 | int format, unsigned char *fmt, int stream) |
| 2510 | { |
| 2511 | int err; |
| 2512 | |
| 2513 | switch (fmt[3]) { |
| 2514 | case USB_FORMAT_TYPE_I: |
| 2515 | case USB_FORMAT_TYPE_III: |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2516 | err = parse_audio_format_i(chip, fp, format, fmt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2517 | break; |
| 2518 | case USB_FORMAT_TYPE_II: |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2519 | err = parse_audio_format_ii(chip, fp, format, fmt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2520 | break; |
| 2521 | default: |
| 2522 | snd_printd(KERN_INFO "%d:%u:%d : format type %d is not supported yet\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2523 | chip->dev->devnum, fp->iface, fp->altsetting, fmt[3]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2524 | return -1; |
| 2525 | } |
| 2526 | fp->fmt_type = fmt[3]; |
| 2527 | if (err < 0) |
| 2528 | return err; |
| 2529 | #if 1 |
Clemens Ladisch | 3315937 | 2006-01-13 08:11:22 +0100 | [diff] [blame] | 2530 | /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2531 | /* extigy apparently supports sample rates other than 48k |
| 2532 | * but not in ordinary way. so we enable only 48k atm. |
| 2533 | */ |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2534 | if (chip->usb_id == USB_ID(0x041e, 0x3000) || |
Clemens Ladisch | 3315937 | 2006-01-13 08:11:22 +0100 | [diff] [blame] | 2535 | chip->usb_id == USB_ID(0x041e, 0x3020) || |
| 2536 | chip->usb_id == USB_ID(0x041e, 0x3061)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2537 | if (fmt[3] == USB_FORMAT_TYPE_I && |
Clemens Ladisch | 8c1872d | 2005-04-28 09:31:53 +0200 | [diff] [blame] | 2538 | fp->rates != SNDRV_PCM_RATE_48000 && |
| 2539 | fp->rates != SNDRV_PCM_RATE_96000) |
Clemens Ladisch | b4d3f9d | 2005-06-27 08:18:27 +0200 | [diff] [blame] | 2540 | return -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2541 | } |
| 2542 | #endif |
| 2543 | return 0; |
| 2544 | } |
| 2545 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2546 | static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2547 | { |
| 2548 | struct usb_device *dev; |
| 2549 | struct usb_interface *iface; |
| 2550 | struct usb_host_interface *alts; |
| 2551 | struct usb_interface_descriptor *altsd; |
| 2552 | int i, altno, err, stream; |
| 2553 | int format; |
| 2554 | struct audioformat *fp; |
| 2555 | unsigned char *fmt, *csep; |
| 2556 | |
| 2557 | dev = chip->dev; |
| 2558 | |
| 2559 | /* parse the interface's altsettings */ |
| 2560 | iface = usb_ifnum_to_if(dev, iface_no); |
| 2561 | for (i = 0; i < iface->num_altsetting; i++) { |
| 2562 | alts = &iface->altsetting[i]; |
| 2563 | altsd = get_iface_desc(alts); |
| 2564 | /* skip invalid one */ |
| 2565 | if ((altsd->bInterfaceClass != USB_CLASS_AUDIO && |
| 2566 | altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) || |
| 2567 | (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIO_STREAMING && |
| 2568 | altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC) || |
| 2569 | altsd->bNumEndpoints < 1 || |
| 2570 | le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0) |
| 2571 | continue; |
| 2572 | /* must be isochronous */ |
| 2573 | if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != |
| 2574 | USB_ENDPOINT_XFER_ISOC) |
| 2575 | continue; |
| 2576 | /* check direction */ |
| 2577 | stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ? |
| 2578 | SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; |
| 2579 | altno = altsd->bAlternateSetting; |
| 2580 | |
| 2581 | /* get audio formats */ |
| 2582 | fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, AS_GENERAL); |
| 2583 | if (!fmt) { |
| 2584 | snd_printk(KERN_ERR "%d:%u:%d : AS_GENERAL descriptor not found\n", |
| 2585 | dev->devnum, iface_no, altno); |
| 2586 | continue; |
| 2587 | } |
| 2588 | |
| 2589 | if (fmt[0] < 7) { |
| 2590 | snd_printk(KERN_ERR "%d:%u:%d : invalid AS_GENERAL desc\n", |
| 2591 | dev->devnum, iface_no, altno); |
| 2592 | continue; |
| 2593 | } |
| 2594 | |
| 2595 | format = (fmt[6] << 8) | fmt[5]; /* remember the format value */ |
| 2596 | |
| 2597 | /* get format type */ |
| 2598 | fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, FORMAT_TYPE); |
| 2599 | if (!fmt) { |
| 2600 | snd_printk(KERN_ERR "%d:%u:%d : no FORMAT_TYPE desc\n", |
| 2601 | dev->devnum, iface_no, altno); |
| 2602 | continue; |
| 2603 | } |
| 2604 | if (fmt[0] < 8) { |
| 2605 | snd_printk(KERN_ERR "%d:%u:%d : invalid FORMAT_TYPE desc\n", |
| 2606 | dev->devnum, iface_no, altno); |
| 2607 | continue; |
| 2608 | } |
| 2609 | |
| 2610 | csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT); |
| 2611 | /* Creamware Noah has this descriptor after the 2nd endpoint */ |
| 2612 | if (!csep && altsd->bNumEndpoints >= 2) |
| 2613 | csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT); |
| 2614 | if (!csep || csep[0] < 7 || csep[2] != EP_GENERAL) { |
| 2615 | snd_printk(KERN_ERR "%d:%u:%d : no or invalid class specific endpoint descriptor\n", |
| 2616 | dev->devnum, iface_no, altno); |
| 2617 | continue; |
| 2618 | } |
| 2619 | |
| 2620 | fp = kmalloc(sizeof(*fp), GFP_KERNEL); |
| 2621 | if (! fp) { |
| 2622 | snd_printk(KERN_ERR "cannot malloc\n"); |
| 2623 | return -ENOMEM; |
| 2624 | } |
| 2625 | |
| 2626 | memset(fp, 0, sizeof(*fp)); |
| 2627 | fp->iface = iface_no; |
| 2628 | fp->altsetting = altno; |
| 2629 | fp->altset_idx = i; |
| 2630 | fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; |
| 2631 | fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2632 | fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); |
Clemens Ladisch | 573567e | 2005-06-27 08:17:30 +0200 | [diff] [blame] | 2633 | if (snd_usb_get_speed(dev) == USB_SPEED_HIGH) |
| 2634 | fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1) |
| 2635 | * (fp->maxpacksize & 0x7ff); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2636 | fp->attributes = csep[3]; |
| 2637 | |
| 2638 | /* some quirks for attributes here */ |
| 2639 | |
Clemens Ladisch | c3f9329 | 2005-05-04 14:56:04 +0200 | [diff] [blame] | 2640 | switch (chip->usb_id) { |
| 2641 | case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2642 | /* Optoplay sets the sample rate attribute although |
| 2643 | * it seems not supporting it in fact. |
| 2644 | */ |
| 2645 | fp->attributes &= ~EP_CS_ATTR_SAMPLE_RATE; |
Clemens Ladisch | c3f9329 | 2005-05-04 14:56:04 +0200 | [diff] [blame] | 2646 | break; |
| 2647 | case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */ |
| 2648 | case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2649 | /* doesn't set the sample rate attribute, but supports it */ |
| 2650 | fp->attributes |= EP_CS_ATTR_SAMPLE_RATE; |
Clemens Ladisch | c3f9329 | 2005-05-04 14:56:04 +0200 | [diff] [blame] | 2651 | break; |
| 2652 | case USB_ID(0x047f, 0x0ca1): /* plantronics headset */ |
| 2653 | case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is |
| 2654 | an older model 77d:223) */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2655 | /* |
| 2656 | * plantronics headset and Griffin iMic have set adaptive-in |
| 2657 | * although it's really not... |
| 2658 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2659 | fp->ep_attr &= ~EP_ATTR_MASK; |
| 2660 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 2661 | fp->ep_attr |= EP_ATTR_ADAPTIVE; |
| 2662 | else |
| 2663 | fp->ep_attr |= EP_ATTR_SYNC; |
Clemens Ladisch | c3f9329 | 2005-05-04 14:56:04 +0200 | [diff] [blame] | 2664 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2665 | } |
| 2666 | |
| 2667 | /* ok, let's parse further... */ |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2668 | if (parse_audio_format(chip, fp, format, fmt, stream) < 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2669 | kfree(fp->rate_table); |
| 2670 | kfree(fp); |
| 2671 | continue; |
| 2672 | } |
| 2673 | |
| 2674 | snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint 0x%x\n", dev->devnum, iface_no, i, fp->endpoint); |
| 2675 | err = add_audio_endpoint(chip, stream, fp); |
| 2676 | if (err < 0) { |
| 2677 | kfree(fp->rate_table); |
| 2678 | kfree(fp); |
| 2679 | return err; |
| 2680 | } |
| 2681 | /* try to set the interface... */ |
| 2682 | usb_set_interface(chip->dev, iface_no, altno); |
| 2683 | init_usb_pitch(chip->dev, iface_no, alts, fp); |
| 2684 | init_usb_sample_rate(chip->dev, iface_no, alts, fp, fp->rate_max); |
| 2685 | } |
| 2686 | return 0; |
| 2687 | } |
| 2688 | |
| 2689 | |
| 2690 | /* |
| 2691 | * disconnect streams |
| 2692 | * called from snd_usb_audio_disconnect() |
| 2693 | */ |
Clemens Ladisch | ee73339 | 2005-04-25 10:34:13 +0200 | [diff] [blame] | 2694 | static void snd_usb_stream_disconnect(struct list_head *head) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2695 | { |
| 2696 | int idx; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2697 | struct snd_usb_stream *as; |
| 2698 | struct snd_usb_substream *subs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2699 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2700 | as = list_entry(head, struct snd_usb_stream, list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2701 | for (idx = 0; idx < 2; idx++) { |
| 2702 | subs = &as->substream[idx]; |
| 2703 | if (!subs->num_formats) |
| 2704 | return; |
| 2705 | release_substream_urbs(subs, 1); |
| 2706 | subs->interface = -1; |
| 2707 | } |
| 2708 | } |
| 2709 | |
| 2710 | /* |
| 2711 | * parse audio control descriptor and create pcm/midi streams |
| 2712 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2713 | static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2714 | { |
| 2715 | struct usb_device *dev = chip->dev; |
| 2716 | struct usb_host_interface *host_iface; |
| 2717 | struct usb_interface *iface; |
| 2718 | unsigned char *p1; |
| 2719 | int i, j; |
| 2720 | |
| 2721 | /* find audiocontrol interface */ |
| 2722 | host_iface = &usb_ifnum_to_if(dev, ctrlif)->altsetting[0]; |
| 2723 | if (!(p1 = snd_usb_find_csint_desc(host_iface->extra, host_iface->extralen, NULL, HEADER))) { |
| 2724 | snd_printk(KERN_ERR "cannot find HEADER\n"); |
| 2725 | return -EINVAL; |
| 2726 | } |
| 2727 | if (! p1[7] || p1[0] < 8 + p1[7]) { |
| 2728 | snd_printk(KERN_ERR "invalid HEADER\n"); |
| 2729 | return -EINVAL; |
| 2730 | } |
| 2731 | |
| 2732 | /* |
| 2733 | * parse all USB audio streaming interfaces |
| 2734 | */ |
| 2735 | for (i = 0; i < p1[7]; i++) { |
| 2736 | struct usb_host_interface *alts; |
| 2737 | struct usb_interface_descriptor *altsd; |
| 2738 | j = p1[8 + i]; |
| 2739 | iface = usb_ifnum_to_if(dev, j); |
| 2740 | if (!iface) { |
| 2741 | snd_printk(KERN_ERR "%d:%u:%d : does not exist\n", |
| 2742 | dev->devnum, ctrlif, j); |
| 2743 | continue; |
| 2744 | } |
| 2745 | if (usb_interface_claimed(iface)) { |
| 2746 | snd_printdd(KERN_INFO "%d:%d:%d: skipping, already claimed\n", dev->devnum, ctrlif, j); |
| 2747 | continue; |
| 2748 | } |
| 2749 | alts = &iface->altsetting[0]; |
| 2750 | altsd = get_iface_desc(alts); |
| 2751 | if ((altsd->bInterfaceClass == USB_CLASS_AUDIO || |
| 2752 | altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC) && |
| 2753 | altsd->bInterfaceSubClass == USB_SUBCLASS_MIDI_STREAMING) { |
| 2754 | if (snd_usb_create_midi_interface(chip, iface, NULL) < 0) { |
| 2755 | snd_printk(KERN_ERR "%d:%u:%d: cannot create sequencer device\n", dev->devnum, ctrlif, j); |
| 2756 | continue; |
| 2757 | } |
| 2758 | usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); |
| 2759 | continue; |
| 2760 | } |
| 2761 | if ((altsd->bInterfaceClass != USB_CLASS_AUDIO && |
| 2762 | altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) || |
| 2763 | altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIO_STREAMING) { |
| 2764 | snd_printdd(KERN_ERR "%d:%u:%d: skipping non-supported interface %d\n", dev->devnum, ctrlif, j, altsd->bInterfaceClass); |
| 2765 | /* skip non-supported classes */ |
| 2766 | continue; |
| 2767 | } |
| 2768 | if (! parse_audio_endpoints(chip, j)) { |
| 2769 | usb_set_interface(dev, j, 0); /* reset the current interface */ |
| 2770 | usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); |
| 2771 | } |
| 2772 | } |
| 2773 | |
| 2774 | return 0; |
| 2775 | } |
| 2776 | |
| 2777 | /* |
| 2778 | * create a stream for an endpoint/altsetting without proper descriptors |
| 2779 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2780 | static int create_fixed_stream_quirk(struct snd_usb_audio *chip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2781 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2782 | const struct snd_usb_audio_quirk *quirk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2783 | { |
| 2784 | struct audioformat *fp; |
| 2785 | struct usb_host_interface *alts; |
| 2786 | int stream, err; |
| 2787 | int *rate_table = NULL; |
| 2788 | |
| 2789 | fp = kmalloc(sizeof(*fp), GFP_KERNEL); |
| 2790 | if (! fp) { |
| 2791 | snd_printk(KERN_ERR "cannot malloc\n"); |
| 2792 | return -ENOMEM; |
| 2793 | } |
| 2794 | memcpy(fp, quirk->data, sizeof(*fp)); |
| 2795 | if (fp->nr_rates > 0) { |
| 2796 | rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL); |
| 2797 | if (!rate_table) { |
| 2798 | kfree(fp); |
| 2799 | return -ENOMEM; |
| 2800 | } |
| 2801 | memcpy(rate_table, fp->rate_table, sizeof(int) * fp->nr_rates); |
| 2802 | fp->rate_table = rate_table; |
| 2803 | } |
| 2804 | |
| 2805 | stream = (fp->endpoint & USB_DIR_IN) |
| 2806 | ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; |
| 2807 | err = add_audio_endpoint(chip, stream, fp); |
| 2808 | if (err < 0) { |
| 2809 | kfree(fp); |
| 2810 | kfree(rate_table); |
| 2811 | return err; |
| 2812 | } |
| 2813 | if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || |
| 2814 | fp->altset_idx >= iface->num_altsetting) { |
| 2815 | kfree(fp); |
| 2816 | kfree(rate_table); |
| 2817 | return -EINVAL; |
| 2818 | } |
| 2819 | alts = &iface->altsetting[fp->altset_idx]; |
| 2820 | usb_set_interface(chip->dev, fp->iface, 0); |
| 2821 | init_usb_pitch(chip->dev, fp->iface, alts, fp); |
| 2822 | init_usb_sample_rate(chip->dev, fp->iface, alts, fp, fp->rate_max); |
| 2823 | return 0; |
| 2824 | } |
| 2825 | |
| 2826 | /* |
| 2827 | * create a stream for an interface with proper descriptors |
| 2828 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2829 | static int create_standard_audio_quirk(struct snd_usb_audio *chip, |
Clemens Ladisch | d1bda04 | 2005-09-14 08:36:03 +0200 | [diff] [blame] | 2830 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2831 | const struct snd_usb_audio_quirk *quirk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2832 | { |
| 2833 | struct usb_host_interface *alts; |
| 2834 | struct usb_interface_descriptor *altsd; |
| 2835 | int err; |
| 2836 | |
| 2837 | alts = &iface->altsetting[0]; |
| 2838 | altsd = get_iface_desc(alts); |
Clemens Ladisch | d1bda04 | 2005-09-14 08:36:03 +0200 | [diff] [blame] | 2839 | err = parse_audio_endpoints(chip, altsd->bInterfaceNumber); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2840 | if (err < 0) { |
| 2841 | snd_printk(KERN_ERR "cannot setup if %d: error %d\n", |
| 2842 | altsd->bInterfaceNumber, err); |
| 2843 | return err; |
| 2844 | } |
Clemens Ladisch | d1bda04 | 2005-09-14 08:36:03 +0200 | [diff] [blame] | 2845 | /* reset the current interface */ |
| 2846 | usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2847 | return 0; |
| 2848 | } |
| 2849 | |
| 2850 | /* |
| 2851 | * Create a stream for an Edirol UA-700/UA-25 interface. The only way |
| 2852 | * to detect the sample rate is by looking at wMaxPacketSize. |
| 2853 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2854 | static int create_ua700_ua25_quirk(struct snd_usb_audio *chip, |
Clemens Ladisch | 854af95 | 2005-07-25 16:19:10 +0200 | [diff] [blame] | 2855 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2856 | const struct snd_usb_audio_quirk *quirk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2857 | { |
| 2858 | static const struct audioformat ua_format = { |
| 2859 | .format = SNDRV_PCM_FORMAT_S24_3LE, |
| 2860 | .channels = 2, |
| 2861 | .fmt_type = USB_FORMAT_TYPE_I, |
| 2862 | .altsetting = 1, |
| 2863 | .altset_idx = 1, |
| 2864 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
| 2865 | }; |
| 2866 | struct usb_host_interface *alts; |
| 2867 | struct usb_interface_descriptor *altsd; |
| 2868 | struct audioformat *fp; |
| 2869 | int stream, err; |
| 2870 | |
| 2871 | /* both PCM and MIDI interfaces have 2 altsettings */ |
| 2872 | if (iface->num_altsetting != 2) |
| 2873 | return -ENXIO; |
| 2874 | alts = &iface->altsetting[1]; |
| 2875 | altsd = get_iface_desc(alts); |
| 2876 | |
| 2877 | if (altsd->bNumEndpoints == 2) { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2878 | static const struct snd_usb_midi_endpoint_info ua700_ep = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2879 | .out_cables = 0x0003, |
| 2880 | .in_cables = 0x0003 |
| 2881 | }; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2882 | static const struct snd_usb_audio_quirk ua700_quirk = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2883 | .type = QUIRK_MIDI_FIXED_ENDPOINT, |
| 2884 | .data = &ua700_ep |
| 2885 | }; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2886 | static const struct snd_usb_midi_endpoint_info ua25_ep = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2887 | .out_cables = 0x0001, |
| 2888 | .in_cables = 0x0001 |
| 2889 | }; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2890 | static const struct snd_usb_audio_quirk ua25_quirk = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2891 | .type = QUIRK_MIDI_FIXED_ENDPOINT, |
| 2892 | .data = &ua25_ep |
| 2893 | }; |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 2894 | if (chip->usb_id == USB_ID(0x0582, 0x002b)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2895 | return snd_usb_create_midi_interface(chip, iface, |
| 2896 | &ua700_quirk); |
| 2897 | else |
| 2898 | return snd_usb_create_midi_interface(chip, iface, |
| 2899 | &ua25_quirk); |
| 2900 | } |
| 2901 | |
| 2902 | if (altsd->bNumEndpoints != 1) |
| 2903 | return -ENXIO; |
| 2904 | |
| 2905 | fp = kmalloc(sizeof(*fp), GFP_KERNEL); |
| 2906 | if (!fp) |
| 2907 | return -ENOMEM; |
| 2908 | memcpy(fp, &ua_format, sizeof(*fp)); |
| 2909 | |
| 2910 | fp->iface = altsd->bInterfaceNumber; |
| 2911 | fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; |
| 2912 | fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; |
| 2913 | fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); |
| 2914 | |
| 2915 | switch (fp->maxpacksize) { |
| 2916 | case 0x120: |
| 2917 | fp->rate_max = fp->rate_min = 44100; |
| 2918 | break; |
| 2919 | case 0x138: |
| 2920 | case 0x140: |
| 2921 | fp->rate_max = fp->rate_min = 48000; |
| 2922 | break; |
| 2923 | case 0x258: |
| 2924 | case 0x260: |
| 2925 | fp->rate_max = fp->rate_min = 96000; |
| 2926 | break; |
| 2927 | default: |
| 2928 | snd_printk(KERN_ERR "unknown sample rate\n"); |
| 2929 | kfree(fp); |
| 2930 | return -ENXIO; |
| 2931 | } |
| 2932 | |
| 2933 | stream = (fp->endpoint & USB_DIR_IN) |
| 2934 | ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; |
| 2935 | err = add_audio_endpoint(chip, stream, fp); |
| 2936 | if (err < 0) { |
| 2937 | kfree(fp); |
| 2938 | return err; |
| 2939 | } |
| 2940 | usb_set_interface(chip->dev, fp->iface, 0); |
| 2941 | return 0; |
| 2942 | } |
| 2943 | |
| 2944 | /* |
| 2945 | * Create a stream for an Edirol UA-1000 interface. |
| 2946 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2947 | static int create_ua1000_quirk(struct snd_usb_audio *chip, |
Clemens Ladisch | 854af95 | 2005-07-25 16:19:10 +0200 | [diff] [blame] | 2948 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2949 | const struct snd_usb_audio_quirk *quirk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2950 | { |
| 2951 | static const struct audioformat ua1000_format = { |
| 2952 | .format = SNDRV_PCM_FORMAT_S32_LE, |
| 2953 | .fmt_type = USB_FORMAT_TYPE_I, |
| 2954 | .altsetting = 1, |
| 2955 | .altset_idx = 1, |
| 2956 | .attributes = 0, |
| 2957 | .rates = SNDRV_PCM_RATE_CONTINUOUS, |
| 2958 | }; |
| 2959 | struct usb_host_interface *alts; |
| 2960 | struct usb_interface_descriptor *altsd; |
| 2961 | struct audioformat *fp; |
| 2962 | int stream, err; |
| 2963 | |
| 2964 | if (iface->num_altsetting != 2) |
| 2965 | return -ENXIO; |
| 2966 | alts = &iface->altsetting[1]; |
| 2967 | altsd = get_iface_desc(alts); |
| 2968 | if (alts->extralen != 11 || alts->extra[1] != CS_AUDIO_INTERFACE || |
| 2969 | altsd->bNumEndpoints != 1) |
| 2970 | return -ENXIO; |
| 2971 | |
| 2972 | fp = kmalloc(sizeof(*fp), GFP_KERNEL); |
| 2973 | if (!fp) |
| 2974 | return -ENOMEM; |
| 2975 | memcpy(fp, &ua1000_format, sizeof(*fp)); |
| 2976 | |
| 2977 | fp->channels = alts->extra[4]; |
| 2978 | fp->iface = altsd->bInterfaceNumber; |
| 2979 | fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; |
| 2980 | fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; |
| 2981 | fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); |
| 2982 | fp->rate_max = fp->rate_min = combine_triple(&alts->extra[8]); |
| 2983 | |
| 2984 | stream = (fp->endpoint & USB_DIR_IN) |
| 2985 | ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; |
| 2986 | err = add_audio_endpoint(chip, stream, fp); |
| 2987 | if (err < 0) { |
| 2988 | kfree(fp); |
| 2989 | return err; |
| 2990 | } |
| 2991 | /* FIXME: playback must be synchronized to capture */ |
| 2992 | usb_set_interface(chip->dev, fp->iface, 0); |
| 2993 | return 0; |
| 2994 | } |
| 2995 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2996 | static int snd_usb_create_quirk(struct snd_usb_audio *chip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2997 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 2998 | const struct snd_usb_audio_quirk *quirk); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2999 | |
| 3000 | /* |
| 3001 | * handle the quirks for the contained interfaces |
| 3002 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3003 | static int create_composite_quirk(struct snd_usb_audio *chip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3004 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3005 | const struct snd_usb_audio_quirk *quirk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3006 | { |
| 3007 | int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber; |
| 3008 | int err; |
| 3009 | |
| 3010 | for (quirk = quirk->data; quirk->ifnum >= 0; ++quirk) { |
| 3011 | iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); |
| 3012 | if (!iface) |
| 3013 | continue; |
| 3014 | if (quirk->ifnum != probed_ifnum && |
| 3015 | usb_interface_claimed(iface)) |
| 3016 | continue; |
| 3017 | err = snd_usb_create_quirk(chip, iface, quirk); |
| 3018 | if (err < 0) |
| 3019 | return err; |
| 3020 | if (quirk->ifnum != probed_ifnum) |
| 3021 | usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L); |
| 3022 | } |
| 3023 | return 0; |
| 3024 | } |
| 3025 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3026 | static int ignore_interface_quirk(struct snd_usb_audio *chip, |
Clemens Ladisch | 854af95 | 2005-07-25 16:19:10 +0200 | [diff] [blame] | 3027 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3028 | const struct snd_usb_audio_quirk *quirk) |
Clemens Ladisch | 854af95 | 2005-07-25 16:19:10 +0200 | [diff] [blame] | 3029 | { |
| 3030 | return 0; |
| 3031 | } |
| 3032 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3033 | |
| 3034 | /* |
| 3035 | * boot quirks |
| 3036 | */ |
| 3037 | |
| 3038 | #define EXTIGY_FIRMWARE_SIZE_OLD 794 |
| 3039 | #define EXTIGY_FIRMWARE_SIZE_NEW 483 |
| 3040 | |
| 3041 | static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf) |
| 3042 | { |
| 3043 | struct usb_host_config *config = dev->actconfig; |
| 3044 | int err; |
| 3045 | |
| 3046 | if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD || |
| 3047 | le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) { |
| 3048 | snd_printdd("sending Extigy boot sequence...\n"); |
| 3049 | /* Send message to force it to reconnect with full interface. */ |
| 3050 | err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0), |
| 3051 | 0x10, 0x43, 0x0001, 0x000a, NULL, 0, 1000); |
| 3052 | if (err < 0) snd_printdd("error sending boot message: %d\n", err); |
| 3053 | err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, |
| 3054 | &dev->descriptor, sizeof(dev->descriptor)); |
| 3055 | config = dev->actconfig; |
| 3056 | if (err < 0) snd_printdd("error usb_get_descriptor: %d\n", err); |
| 3057 | err = usb_reset_configuration(dev); |
| 3058 | if (err < 0) snd_printdd("error usb_reset_configuration: %d\n", err); |
| 3059 | snd_printdd("extigy_boot: new boot length = %d\n", |
| 3060 | le16_to_cpu(get_cfg_desc(config)->wTotalLength)); |
| 3061 | return -ENODEV; /* quit this anyway */ |
| 3062 | } |
| 3063 | return 0; |
| 3064 | } |
| 3065 | |
Clemens Ladisch | 3a2f085 | 2005-05-09 09:20:31 +0200 | [diff] [blame] | 3066 | static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev) |
| 3067 | { |
Clemens Ladisch | 3a2f085 | 2005-05-09 09:20:31 +0200 | [diff] [blame] | 3068 | u8 buf = 1; |
| 3069 | |
| 3070 | snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a, |
| 3071 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, |
| 3072 | 0, 0, &buf, 1, 1000); |
| 3073 | if (buf == 0) { |
| 3074 | snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29, |
| 3075 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, |
| 3076 | 1, 2000, NULL, 0, 1000); |
| 3077 | return -ENODEV; |
| 3078 | } |
Clemens Ladisch | 3a2f085 | 2005-05-09 09:20:31 +0200 | [diff] [blame] | 3079 | return 0; |
| 3080 | } |
| 3081 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3082 | |
| 3083 | /* |
| 3084 | * audio-interface quirks |
| 3085 | * |
| 3086 | * returns zero if no standard audio/MIDI parsing is needed. |
| 3087 | * returns a postive value if standard audio/midi interfaces are parsed |
| 3088 | * after this. |
| 3089 | * returns a negative value at error. |
| 3090 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3091 | static int snd_usb_create_quirk(struct snd_usb_audio *chip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3092 | struct usb_interface *iface, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3093 | const struct snd_usb_audio_quirk *quirk) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3094 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3095 | typedef int (*quirk_func_t)(struct snd_usb_audio *, struct usb_interface *, |
| 3096 | const struct snd_usb_audio_quirk *); |
Clemens Ladisch | 854af95 | 2005-07-25 16:19:10 +0200 | [diff] [blame] | 3097 | static const quirk_func_t quirk_funcs[] = { |
| 3098 | [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk, |
| 3099 | [QUIRK_COMPOSITE] = create_composite_quirk, |
| 3100 | [QUIRK_MIDI_STANDARD_INTERFACE] = snd_usb_create_midi_interface, |
| 3101 | [QUIRK_MIDI_FIXED_ENDPOINT] = snd_usb_create_midi_interface, |
| 3102 | [QUIRK_MIDI_YAMAHA] = snd_usb_create_midi_interface, |
| 3103 | [QUIRK_MIDI_MIDIMAN] = snd_usb_create_midi_interface, |
| 3104 | [QUIRK_MIDI_NOVATION] = snd_usb_create_midi_interface, |
| 3105 | [QUIRK_MIDI_RAW] = snd_usb_create_midi_interface, |
| 3106 | [QUIRK_MIDI_EMAGIC] = snd_usb_create_midi_interface, |
Clemens Ladisch | cc7a59b | 2006-02-07 17:11:06 +0100 | [diff] [blame] | 3107 | [QUIRK_MIDI_CME] = snd_usb_create_midi_interface, |
Clemens Ladisch | d1bda04 | 2005-09-14 08:36:03 +0200 | [diff] [blame] | 3108 | [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk, |
Clemens Ladisch | 854af95 | 2005-07-25 16:19:10 +0200 | [diff] [blame] | 3109 | [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk, |
| 3110 | [QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk, |
| 3111 | [QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk, |
| 3112 | }; |
| 3113 | |
| 3114 | if (quirk->type < QUIRK_TYPE_COUNT) { |
| 3115 | return quirk_funcs[quirk->type](chip, iface, quirk); |
| 3116 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3117 | snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type); |
| 3118 | return -ENXIO; |
| 3119 | } |
| 3120 | } |
| 3121 | |
| 3122 | |
| 3123 | /* |
| 3124 | * common proc files to show the usb device info |
| 3125 | */ |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3126 | static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3127 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3128 | struct snd_usb_audio *chip = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3129 | if (! chip->shutdown) |
| 3130 | snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); |
| 3131 | } |
| 3132 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3133 | static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3134 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3135 | struct snd_usb_audio *chip = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3136 | if (! chip->shutdown) |
| 3137 | snd_iprintf(buffer, "%04x:%04x\n", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3138 | USB_ID_VENDOR(chip->usb_id), |
| 3139 | USB_ID_PRODUCT(chip->usb_id)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3140 | } |
| 3141 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3142 | static void snd_usb_audio_create_proc(struct snd_usb_audio *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3143 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3144 | struct snd_info_entry *entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3145 | if (! snd_card_proc_new(chip->card, "usbbus", &entry)) |
| 3146 | snd_info_set_text_ops(entry, chip, 1024, proc_audio_usbbus_read); |
| 3147 | if (! snd_card_proc_new(chip->card, "usbid", &entry)) |
| 3148 | snd_info_set_text_ops(entry, chip, 1024, proc_audio_usbid_read); |
| 3149 | } |
| 3150 | |
| 3151 | /* |
| 3152 | * free the chip instance |
| 3153 | * |
| 3154 | * here we have to do not much, since pcm and controls are already freed |
| 3155 | * |
| 3156 | */ |
| 3157 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3158 | static int snd_usb_audio_free(struct snd_usb_audio *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3159 | { |
| 3160 | kfree(chip); |
| 3161 | return 0; |
| 3162 | } |
| 3163 | |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3164 | static int snd_usb_audio_dev_free(struct snd_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3165 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3166 | struct snd_usb_audio *chip = device->device_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3167 | return snd_usb_audio_free(chip); |
| 3168 | } |
| 3169 | |
| 3170 | |
| 3171 | /* |
| 3172 | * create a chip instance and set its names. |
| 3173 | */ |
| 3174 | static int snd_usb_audio_create(struct usb_device *dev, int idx, |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3175 | const struct snd_usb_audio_quirk *quirk, |
| 3176 | struct snd_usb_audio **rchip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3177 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3178 | struct snd_card *card; |
| 3179 | struct snd_usb_audio *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3180 | int err, len; |
| 3181 | char component[14]; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3182 | static struct snd_device_ops ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3183 | .dev_free = snd_usb_audio_dev_free, |
| 3184 | }; |
| 3185 | |
| 3186 | *rchip = NULL; |
| 3187 | |
| 3188 | if (snd_usb_get_speed(dev) != USB_SPEED_FULL && |
| 3189 | snd_usb_get_speed(dev) != USB_SPEED_HIGH) { |
| 3190 | snd_printk(KERN_ERR "unknown device speed %d\n", snd_usb_get_speed(dev)); |
| 3191 | return -ENXIO; |
| 3192 | } |
| 3193 | |
| 3194 | card = snd_card_new(index[idx], id[idx], THIS_MODULE, 0); |
| 3195 | if (card == NULL) { |
| 3196 | snd_printk(KERN_ERR "cannot create card instance %d\n", idx); |
| 3197 | return -ENOMEM; |
| 3198 | } |
| 3199 | |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 3200 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3201 | if (! chip) { |
| 3202 | snd_card_free(card); |
| 3203 | return -ENOMEM; |
| 3204 | } |
| 3205 | |
| 3206 | chip->index = idx; |
| 3207 | chip->dev = dev; |
| 3208 | chip->card = card; |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3209 | chip->usb_id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), |
| 3210 | le16_to_cpu(dev->descriptor.idProduct)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3211 | INIT_LIST_HEAD(&chip->pcm_list); |
| 3212 | INIT_LIST_HEAD(&chip->midi_list); |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 3213 | INIT_LIST_HEAD(&chip->mixer_list); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3214 | |
| 3215 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
| 3216 | snd_usb_audio_free(chip); |
| 3217 | snd_card_free(card); |
| 3218 | return err; |
| 3219 | } |
| 3220 | |
| 3221 | strcpy(card->driver, "USB-Audio"); |
| 3222 | sprintf(component, "USB%04x:%04x", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3223 | USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3224 | snd_component_add(card, component); |
| 3225 | |
| 3226 | /* retrieve the device string as shortname */ |
| 3227 | if (quirk && quirk->product_name) { |
| 3228 | strlcpy(card->shortname, quirk->product_name, sizeof(card->shortname)); |
| 3229 | } else { |
| 3230 | if (!dev->descriptor.iProduct || |
| 3231 | usb_string(dev, dev->descriptor.iProduct, |
| 3232 | card->shortname, sizeof(card->shortname)) <= 0) { |
| 3233 | /* no name available from anywhere, so use ID */ |
| 3234 | sprintf(card->shortname, "USB Device %#04x:%#04x", |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3235 | USB_ID_VENDOR(chip->usb_id), |
| 3236 | USB_ID_PRODUCT(chip->usb_id)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3237 | } |
| 3238 | } |
| 3239 | |
| 3240 | /* retrieve the vendor and device strings as longname */ |
| 3241 | if (quirk && quirk->vendor_name) { |
| 3242 | len = strlcpy(card->longname, quirk->vendor_name, sizeof(card->longname)); |
| 3243 | } else { |
| 3244 | if (dev->descriptor.iManufacturer) |
| 3245 | len = usb_string(dev, dev->descriptor.iManufacturer, |
| 3246 | card->longname, sizeof(card->longname)); |
| 3247 | else |
| 3248 | len = 0; |
| 3249 | /* we don't really care if there isn't any vendor string */ |
| 3250 | } |
| 3251 | if (len > 0) |
| 3252 | strlcat(card->longname, " ", sizeof(card->longname)); |
| 3253 | |
| 3254 | strlcat(card->longname, card->shortname, sizeof(card->longname)); |
| 3255 | |
| 3256 | len = strlcat(card->longname, " at ", sizeof(card->longname)); |
| 3257 | |
| 3258 | if (len < sizeof(card->longname)) |
| 3259 | usb_make_path(dev, card->longname + len, sizeof(card->longname) - len); |
| 3260 | |
| 3261 | strlcat(card->longname, |
| 3262 | snd_usb_get_speed(dev) == USB_SPEED_FULL ? ", full speed" : ", high speed", |
| 3263 | sizeof(card->longname)); |
| 3264 | |
| 3265 | snd_usb_audio_create_proc(chip); |
| 3266 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3267 | *rchip = chip; |
| 3268 | return 0; |
| 3269 | } |
| 3270 | |
| 3271 | |
| 3272 | /* |
| 3273 | * probe the active usb device |
| 3274 | * |
| 3275 | * note that this can be called multiple times per a device, when it |
| 3276 | * includes multiple audio control interfaces. |
| 3277 | * |
| 3278 | * thus we check the usb device pointer and creates the card instance |
| 3279 | * only at the first time. the successive calls of this function will |
| 3280 | * append the pcm interface to the corresponding card. |
| 3281 | */ |
| 3282 | static void *snd_usb_audio_probe(struct usb_device *dev, |
| 3283 | struct usb_interface *intf, |
| 3284 | const struct usb_device_id *usb_id) |
| 3285 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3286 | const struct snd_usb_audio_quirk *quirk = (const struct snd_usb_audio_quirk *)usb_id->driver_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3287 | int i, err; |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3288 | struct snd_usb_audio *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3289 | struct usb_host_interface *alts; |
| 3290 | int ifnum; |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3291 | u32 id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3292 | |
| 3293 | alts = &intf->altsetting[0]; |
| 3294 | ifnum = get_iface_desc(alts)->bInterfaceNumber; |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3295 | id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), |
| 3296 | le16_to_cpu(dev->descriptor.idProduct)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3297 | |
| 3298 | if (quirk && quirk->ifnum >= 0 && ifnum != quirk->ifnum) |
| 3299 | goto __err_val; |
| 3300 | |
| 3301 | /* SB Extigy needs special boot-up sequence */ |
| 3302 | /* if more models come, this will go to the quirk list. */ |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3303 | if (id == USB_ID(0x041e, 0x3000)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3304 | if (snd_usb_extigy_boot_quirk(dev, intf) < 0) |
| 3305 | goto __err_val; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3306 | } |
Clemens Ladisch | 3a2f085 | 2005-05-09 09:20:31 +0200 | [diff] [blame] | 3307 | /* SB Audigy 2 NX needs its own boot-up magic, too */ |
| 3308 | if (id == USB_ID(0x041e, 0x3020)) { |
| 3309 | if (snd_usb_audigy2nx_boot_quirk(dev) < 0) |
| 3310 | goto __err_val; |
| 3311 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3312 | |
| 3313 | /* |
| 3314 | * found a config. now register to ALSA |
| 3315 | */ |
| 3316 | |
| 3317 | /* check whether it's already registered */ |
| 3318 | chip = NULL; |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 3319 | mutex_lock(®ister_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3320 | for (i = 0; i < SNDRV_CARDS; i++) { |
| 3321 | if (usb_chip[i] && usb_chip[i]->dev == dev) { |
| 3322 | if (usb_chip[i]->shutdown) { |
| 3323 | snd_printk(KERN_ERR "USB device is in the shutdown state, cannot create a card instance\n"); |
| 3324 | goto __error; |
| 3325 | } |
| 3326 | chip = usb_chip[i]; |
| 3327 | break; |
| 3328 | } |
| 3329 | } |
| 3330 | if (! chip) { |
| 3331 | /* it's a fresh one. |
| 3332 | * now look for an empty slot and create a new card instance |
| 3333 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3334 | for (i = 0; i < SNDRV_CARDS; i++) |
| 3335 | if (enable[i] && ! usb_chip[i] && |
Clemens Ladisch | 27d10f5 | 2005-05-02 08:51:26 +0200 | [diff] [blame] | 3336 | (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) && |
| 3337 | (pid[i] == -1 || pid[i] == USB_ID_PRODUCT(id))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3338 | if (snd_usb_audio_create(dev, i, quirk, &chip) < 0) { |
| 3339 | goto __error; |
| 3340 | } |
Clemens Ladisch | 1dcd3ec | 2005-05-10 14:51:40 +0200 | [diff] [blame] | 3341 | snd_card_set_dev(chip->card, &intf->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3342 | break; |
| 3343 | } |
| 3344 | if (! chip) { |
| 3345 | snd_printk(KERN_ERR "no available usb audio device\n"); |
| 3346 | goto __error; |
| 3347 | } |
| 3348 | } |
| 3349 | |
| 3350 | err = 1; /* continue */ |
| 3351 | if (quirk && quirk->ifnum != QUIRK_NO_INTERFACE) { |
| 3352 | /* need some special handlings */ |
| 3353 | if ((err = snd_usb_create_quirk(chip, intf, quirk)) < 0) |
| 3354 | goto __error; |
| 3355 | } |
| 3356 | |
| 3357 | if (err > 0) { |
| 3358 | /* create normal USB audio interfaces */ |
| 3359 | if (snd_usb_create_streams(chip, ifnum) < 0 || |
| 3360 | snd_usb_create_mixer(chip, ifnum) < 0) { |
| 3361 | goto __error; |
| 3362 | } |
| 3363 | } |
| 3364 | |
| 3365 | /* we are allowed to call snd_card_register() many times */ |
| 3366 | if (snd_card_register(chip->card) < 0) { |
| 3367 | goto __error; |
| 3368 | } |
| 3369 | |
| 3370 | usb_chip[chip->index] = chip; |
| 3371 | chip->num_interfaces++; |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 3372 | mutex_unlock(®ister_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3373 | return chip; |
| 3374 | |
| 3375 | __error: |
| 3376 | if (chip && !chip->num_interfaces) |
| 3377 | snd_card_free(chip->card); |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 3378 | mutex_unlock(®ister_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3379 | __err_val: |
| 3380 | return NULL; |
| 3381 | } |
| 3382 | |
| 3383 | /* |
| 3384 | * we need to take care of counter, since disconnection can be called also |
| 3385 | * many times as well as usb_audio_probe(). |
| 3386 | */ |
| 3387 | static void snd_usb_audio_disconnect(struct usb_device *dev, void *ptr) |
| 3388 | { |
Takashi Iwai | 86e07d3 | 2005-11-17 15:08:02 +0100 | [diff] [blame] | 3389 | struct snd_usb_audio *chip; |
| 3390 | struct snd_card *card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3391 | struct list_head *p; |
| 3392 | |
| 3393 | if (ptr == (void *)-1L) |
| 3394 | return; |
| 3395 | |
| 3396 | chip = ptr; |
| 3397 | card = chip->card; |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 3398 | mutex_lock(®ister_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3399 | chip->shutdown = 1; |
| 3400 | chip->num_interfaces--; |
| 3401 | if (chip->num_interfaces <= 0) { |
| 3402 | snd_card_disconnect(card); |
| 3403 | /* release the pcm resources */ |
| 3404 | list_for_each(p, &chip->pcm_list) { |
Clemens Ladisch | ee73339 | 2005-04-25 10:34:13 +0200 | [diff] [blame] | 3405 | snd_usb_stream_disconnect(p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3406 | } |
| 3407 | /* release the midi resources */ |
| 3408 | list_for_each(p, &chip->midi_list) { |
Clemens Ladisch | ee73339 | 2005-04-25 10:34:13 +0200 | [diff] [blame] | 3409 | snd_usbmidi_disconnect(p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3410 | } |
Clemens Ladisch | 84957a8 | 2005-04-29 16:23:13 +0200 | [diff] [blame] | 3411 | /* release mixer resources */ |
| 3412 | list_for_each(p, &chip->mixer_list) { |
| 3413 | snd_usb_mixer_disconnect(p); |
| 3414 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3415 | usb_chip[chip->index] = NULL; |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 3416 | mutex_unlock(®ister_mutex); |
Karsten Wiese | 230cd5e | 2005-04-20 10:12:35 +0200 | [diff] [blame] | 3417 | snd_card_free(card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3418 | } else { |
Ingo Molnar | 12aa757 | 2006-01-16 16:36:05 +0100 | [diff] [blame] | 3419 | mutex_unlock(®ister_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3420 | } |
| 3421 | } |
| 3422 | |
| 3423 | /* |
| 3424 | * new 2.5 USB kernel API |
| 3425 | */ |
| 3426 | static int usb_audio_probe(struct usb_interface *intf, |
| 3427 | const struct usb_device_id *id) |
| 3428 | { |
| 3429 | void *chip; |
| 3430 | chip = snd_usb_audio_probe(interface_to_usbdev(intf), intf, id); |
| 3431 | if (chip) { |
| 3432 | dev_set_drvdata(&intf->dev, chip); |
| 3433 | return 0; |
| 3434 | } else |
| 3435 | return -EIO; |
| 3436 | } |
| 3437 | |
| 3438 | static void usb_audio_disconnect(struct usb_interface *intf) |
| 3439 | { |
| 3440 | snd_usb_audio_disconnect(interface_to_usbdev(intf), |
| 3441 | dev_get_drvdata(&intf->dev)); |
| 3442 | } |
| 3443 | |
| 3444 | |
| 3445 | static int __init snd_usb_audio_init(void) |
| 3446 | { |
| 3447 | if (nrpacks < MIN_PACKS_URB || nrpacks > MAX_PACKS) { |
| 3448 | printk(KERN_WARNING "invalid nrpacks value.\n"); |
| 3449 | return -EINVAL; |
| 3450 | } |
| 3451 | usb_register(&usb_audio_driver); |
| 3452 | return 0; |
| 3453 | } |
| 3454 | |
| 3455 | |
| 3456 | static void __exit snd_usb_audio_cleanup(void) |
| 3457 | { |
| 3458 | usb_deregister(&usb_audio_driver); |
| 3459 | } |
| 3460 | |
| 3461 | module_init(snd_usb_audio_init); |
| 3462 | module_exit(snd_usb_audio_cleanup); |