]> err.no Git - linux-2.6/blobdiff - sound/usb/usbaudio.c
[ALSA] usb-audio - cache vendor/product IDs
[linux-2.6] / sound / usb / usbaudio.c
index eeb09bb8cbf332de5a8364f4bd25de0b30dd8dc2..e759b73942c257c260752bbeabce05a09d45b6ee 100644 (file)
@@ -2184,17 +2184,15 @@ static int add_audio_endpoint(snd_usb_audio_t *chip, int stream, struct audiofor
 /*
  * check if the device uses big-endian samples
  */
-static int is_big_endian_format(struct usb_device *dev, struct audioformat *fp)
+static int is_big_endian_format(snd_usb_audio_t *chip, struct audioformat *fp)
 {
-       /* M-Audio */
-       if (le16_to_cpu(dev->descriptor.idVendor) == 0x0763) {
-               /* Quattro: captured data only */
-               if (le16_to_cpu(dev->descriptor.idProduct) == 0x2001 &&
-                   fp->endpoint & USB_DIR_IN)
-                       return 1;
-               /* Audiophile USB */
-               if (le16_to_cpu(dev->descriptor.idProduct) == 0x2003)
+       switch (chip->usb_id) {
+       case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */
+               if (fp->endpoint & USB_DIR_IN)
                        return 1;
+               break;
+       case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
+               return 1;
        }
        return 0;
 }
@@ -2208,7 +2206,7 @@ static int is_big_endian_format(struct usb_device *dev, struct audioformat *fp)
  * @format: the format tag (wFormatTag)
  * @fmt: the format type descriptor
  */
-static int parse_audio_format_i_type(struct usb_device *dev, struct audioformat *fp,
+static int parse_audio_format_i_type(snd_usb_audio_t *chip, struct audioformat *fp,
                                     int format, unsigned char *fmt)
 {
        int pcm_format;
@@ -2221,12 +2219,12 @@ static int parse_audio_format_i_type(struct usb_device *dev, struct audioformat
        switch (format) {
        case 0: /* some devices don't define this correctly... */
                snd_printdd(KERN_INFO "%d:%u:%d : format type 0 is detected, processed as PCM\n",
-                           dev->devnum, fp->iface, fp->altsetting);
+                           chip->dev->devnum, fp->iface, fp->altsetting);
                /* fall-through */
        case USB_AUDIO_FORMAT_PCM:
                if (sample_width > sample_bytes * 8) {
                        snd_printk(KERN_INFO "%d:%u:%d : sample bitwidth %d in over sample bytes %d\n",
-                                  dev->devnum, fp->iface, fp->altsetting,
+                                  chip->dev->devnum, fp->iface, fp->altsetting,
                                   sample_width, sample_bytes);
                }
                /* check the format byte size */
@@ -2235,13 +2233,13 @@ static int parse_audio_format_i_type(struct usb_device *dev, struct audioformat
                        pcm_format = SNDRV_PCM_FORMAT_S8;
                        break;
                case 2:
-                       if (is_big_endian_format(dev, fp))
+                       if (is_big_endian_format(chip, fp))
                                pcm_format = SNDRV_PCM_FORMAT_S16_BE; /* grrr, big endian!! */
                        else
                                pcm_format = SNDRV_PCM_FORMAT_S16_LE;
                        break;
                case 3:
-                       if (is_big_endian_format(dev, fp))
+                       if (is_big_endian_format(chip, fp))
                                pcm_format = SNDRV_PCM_FORMAT_S24_3BE; /* grrr, big endian!! */
                        else
                                pcm_format = SNDRV_PCM_FORMAT_S24_3LE;
@@ -2251,14 +2249,14 @@ static int parse_audio_format_i_type(struct usb_device *dev, struct audioformat
                        break;
                default:
                        snd_printk(KERN_INFO "%d:%u:%d : unsupported sample bitwidth %d in %d bytes\n",
-                                  dev->devnum, fp->iface, fp->altsetting, sample_width, sample_bytes);
+                                  chip->dev->devnum, fp->iface,
+                                  fp->altsetting, sample_width, sample_bytes);
                        break;
                }
                break;
        case USB_AUDIO_FORMAT_PCM8:
                /* Dallas DS4201 workaround */
-               if (le16_to_cpu(dev->descriptor.idVendor) == 0x04fa &&
-                   le16_to_cpu(dev->descriptor.idProduct) == 0x4201)
+               if (chip->usb_id == USB_ID(0x04fa, 0x4201))
                        pcm_format = SNDRV_PCM_FORMAT_S8;
                else
                        pcm_format = SNDRV_PCM_FORMAT_U8;
@@ -2274,7 +2272,7 @@ static int parse_audio_format_i_type(struct usb_device *dev, struct audioformat
                break;
        default:
                snd_printk(KERN_INFO "%d:%u:%d : unsupported format type %d\n",
-                          dev->devnum, fp->iface, fp->altsetting, format);
+                          chip->dev->devnum, fp->iface, fp->altsetting, format);
                break;
        }
        return pcm_format;
@@ -2291,13 +2289,13 @@ static int parse_audio_format_i_type(struct usb_device *dev, struct audioformat
  * @offset: the start offset of descriptor pointing the rate type
  *          (7 for type I and II, 8 for type II)
  */
-static int parse_audio_format_rates(struct usb_device *dev, struct audioformat *fp,
+static int parse_audio_format_rates(snd_usb_audio_t *chip, struct audioformat *fp,
                                    unsigned char *fmt, int offset)
 {
        int nr_rates = fmt[offset];
        if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) {
                snd_printk(KERN_ERR "%d:%u:%d : invalid FORMAT_TYPE desc\n",
-                                  dev->devnum, fp->iface, fp->altsetting);
+                                  chip->dev->devnum, fp->iface, fp->altsetting);
                return -1;
        }
 
@@ -2344,7 +2342,7 @@ static int parse_audio_format_rates(struct usb_device *dev, struct audioformat *
 /*
  * parse the format type I and III descriptors
  */
-static int parse_audio_format_i(struct usb_device *dev, struct audioformat *fp,
+static int parse_audio_format_i(snd_usb_audio_t *chip, struct audioformat *fp,
                                int format, unsigned char *fmt)
 {
        int pcm_format;
@@ -2356,7 +2354,7 @@ static int parse_audio_format_i(struct usb_device *dev, struct audioformat *fp,
                 */
                pcm_format = SNDRV_PCM_FORMAT_S16_LE;
        } else {
-               pcm_format = parse_audio_format_i_type(dev, fp, format, fmt);
+               pcm_format = parse_audio_format_i_type(chip, fp, format, fmt);
                if (pcm_format < 0)
                        return -1;
        }
@@ -2364,16 +2362,16 @@ static int parse_audio_format_i(struct usb_device *dev, struct audioformat *fp,
        fp->channels = fmt[4];
        if (fp->channels < 1) {
                snd_printk(KERN_ERR "%d:%u:%d : invalid channels %d\n",
-                          dev->devnum, fp->iface, fp->altsetting, fp->channels);
+                          chip->dev->devnum, fp->iface, fp->altsetting, fp->channels);
                return -1;
        }
-       return parse_audio_format_rates(dev, fp, fmt, 7);
+       return parse_audio_format_rates(chip, fp, fmt, 7);
 }
 
 /*
  * prase the format type II descriptor
  */
-static int parse_audio_format_ii(struct usb_device *dev, struct audioformat *fp,
+static int parse_audio_format_ii(snd_usb_audio_t *chip, struct audioformat *fp,
                                 int format, unsigned char *fmt)
 {
        int brate, framesize;
@@ -2388,7 +2386,7 @@ static int parse_audio_format_ii(struct usb_device *dev, struct audioformat *fp,
                break;
        default:
                snd_printd(KERN_INFO "%d:%u:%d : unknown format tag 0x%x is detected.  processed as MPEG.\n",
-                          dev->devnum, fp->iface, fp->altsetting, format);
+                          chip->dev->devnum, fp->iface, fp->altsetting, format);
                fp->format = SNDRV_PCM_FORMAT_MPEG;
                break;
        }
@@ -2397,10 +2395,10 @@ static int parse_audio_format_ii(struct usb_device *dev, struct audioformat *fp,
        framesize = combine_word(&fmt[6]); /* fmt[6,7]: wSamplesPerFrame */
        snd_printd(KERN_INFO "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize);
        fp->frame_size = framesize;
-       return parse_audio_format_rates(dev, fp, fmt, 8); /* fmt[8..] sample rates */
+       return parse_audio_format_rates(chip, fp, fmt, 8); /* fmt[8..] sample rates */
 }
 
-static int parse_audio_format(struct usb_device *dev, struct audioformat *fp,
+static int parse_audio_format(snd_usb_audio_t *chip, struct audioformat *fp,
                              int format, unsigned char *fmt, int stream)
 {
        int err;
@@ -2408,14 +2406,14 @@ static int parse_audio_format(struct usb_device *dev, struct audioformat *fp,
        switch (fmt[3]) {
        case USB_FORMAT_TYPE_I:
        case USB_FORMAT_TYPE_III:
-               err = parse_audio_format_i(dev, fp, format, fmt);
+               err = parse_audio_format_i(chip, fp, format, fmt);
                break;
        case USB_FORMAT_TYPE_II:
-               err = parse_audio_format_ii(dev, fp, format, fmt);
+               err = parse_audio_format_ii(chip, fp, format, fmt);
                break;
        default:
                snd_printd(KERN_INFO "%d:%u:%d : format type %d is not supported yet\n",
-                          dev->devnum, fp->iface, fp->altsetting, fmt[3]);
+                          chip->dev->devnum, fp->iface, fp->altsetting, fmt[3]);
                return -1;
        }
        fp->fmt_type = fmt[3];
@@ -2426,9 +2424,8 @@ static int parse_audio_format(struct usb_device *dev, struct audioformat *fp,
        /* extigy apparently supports sample rates other than 48k
         * but not in ordinary way.  so we enable only 48k atm.
         */
-       if (le16_to_cpu(dev->descriptor.idVendor) == 0x041e && 
-           (le16_to_cpu(dev->descriptor.idProduct) == 0x3000 ||
-            le16_to_cpu(dev->descriptor.idProduct) == 0x3020)) {
+       if (chip->usb_id == USB_ID(0x041e, 0x3000) ||
+           chip->usb_id == USB_ID(0x041e, 0x3020)) {
                if (fmt[3] == USB_FORMAT_TYPE_I &&
                    stream == SNDRV_PCM_STREAM_PLAYBACK &&
                    fp->rates != SNDRV_PCM_RATE_48000 &&
@@ -2532,8 +2529,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                /* some quirks for attributes here */
 
                /* workaround for AudioTrak Optoplay */
-               if (le16_to_cpu(dev->descriptor.idVendor) == 0x0a92 &&
-                   le16_to_cpu(dev->descriptor.idProduct) == 0x0053) {
+               if (chip->usb_id == USB_ID(0x0a92, 0x0053)) {
                        /* Optoplay sets the sample rate attribute although
                         * it seems not supporting it in fact.
                         */
@@ -2541,8 +2537,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                }
 
                /* workaround for M-Audio Audiophile USB */
-               if (le16_to_cpu(dev->descriptor.idVendor) == 0x0763 &&
-                   le16_to_cpu(dev->descriptor.idProduct) == 0x2003) {
+               if (chip->usb_id == USB_ID(0x0763, 0x2003)) {
                        /* doesn't set the sample rate attribute, but supports it */
                        fp->attributes |= EP_CS_ATTR_SAMPLE_RATE;
                }
@@ -2551,11 +2546,9 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                 * plantronics headset and Griffin iMic have set adaptive-in
                 * although it's really not...
                 */
-               if ((le16_to_cpu(dev->descriptor.idVendor) == 0x047f &&
-                    le16_to_cpu(dev->descriptor.idProduct) == 0x0ca1) ||
+               if (chip->usb_id == USB_ID(0x047f, 0x0ca1) ||
                    /* Griffin iMic (note that there is an older model 77d:223) */
-                   (le16_to_cpu(dev->descriptor.idVendor) == 0x077d &&
-                    le16_to_cpu(dev->descriptor.idProduct) == 0x07af)) {
+                   chip->usb_id == USB_ID(0x077d, 0x07af)) {
                        fp->ep_attr &= ~EP_ATTR_MASK;
                        if (stream == SNDRV_PCM_STREAM_PLAYBACK)
                                fp->ep_attr |= EP_ATTR_ADAPTIVE;
@@ -2564,7 +2557,7 @@ static int parse_audio_endpoints(snd_usb_audio_t *chip, int iface_no)
                }
 
                /* ok, let's parse further... */
-               if (parse_audio_format(dev, fp, format, fmt, stream) < 0) {
+               if (parse_audio_format(chip, fp, format, fmt, stream) < 0) {
                        kfree(fp->rate_table);
                        kfree(fp);
                        continue;
@@ -2799,7 +2792,7 @@ static int create_ua700_ua25_quirk(snd_usb_audio_t *chip,
                        .type = QUIRK_MIDI_FIXED_ENDPOINT,
                        .data = &ua25_ep
                };
-               if (le16_to_cpu(chip->dev->descriptor.idProduct) == 0x002b)
+               if (chip->usb_id == USB_ID(0x0582, 0x002b))
                        return snd_usb_create_midi_interface(chip, iface,
                                                             &ua700_quirk);
                else
@@ -3018,8 +3011,8 @@ static void proc_audio_usbid_read(snd_info_entry_t *entry, snd_info_buffer_t *bu
        snd_usb_audio_t *chip = entry->private_data;
        if (! chip->shutdown)
                snd_iprintf(buffer, "%04x:%04x\n", 
-                           le16_to_cpu(chip->dev->descriptor.idVendor),
-                           le16_to_cpu(chip->dev->descriptor.idProduct));
+                           USB_ID_VENDOR(chip->usb_id),
+                           USB_ID_PRODUCT(chip->usb_id));
 }
 
 static void snd_usb_audio_create_proc(snd_usb_audio_t *chip)
@@ -3089,6 +3082,8 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
        chip->index = idx;
        chip->dev = dev;
        chip->card = card;
+       chip->usb_id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
+                             le16_to_cpu(dev->descriptor.idProduct));
        INIT_LIST_HEAD(&chip->pcm_list);
        INIT_LIST_HEAD(&chip->midi_list);
        INIT_LIST_HEAD(&chip->mixer_list);
@@ -3101,8 +3096,7 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
 
        strcpy(card->driver, "USB-Audio");
        sprintf(component, "USB%04x:%04x",
-               le16_to_cpu(dev->descriptor.idVendor),
-               le16_to_cpu(dev->descriptor.idProduct));
+               USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id));
        snd_component_add(card, component);
 
        /* retrieve the device string as shortname */
@@ -3114,8 +3108,8 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
                               card->shortname, sizeof(card->shortname)) <= 0) {
                        /* no name available from anywhere, so use ID */
                        sprintf(card->shortname, "USB Device %#04x:%#04x",
-                               le16_to_cpu(dev->descriptor.idVendor),
-                               le16_to_cpu(dev->descriptor.idProduct));
+                               USB_ID_VENDOR(chip->usb_id),
+                               USB_ID_PRODUCT(chip->usb_id));
                }
        }
 
@@ -3173,17 +3167,19 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
        snd_usb_audio_t *chip;
        struct usb_host_interface *alts;
        int ifnum;
+       u32 id;
 
        alts = &intf->altsetting[0];
        ifnum = get_iface_desc(alts)->bInterfaceNumber;
+       id = USB_ID(le16_to_cpu(dev->descriptor.idVendor),
+                   le16_to_cpu(dev->descriptor.idProduct));
 
        if (quirk && quirk->ifnum >= 0 && ifnum != quirk->ifnum)
                goto __err_val;
 
        /* SB Extigy needs special boot-up sequence */
        /* if more models come, this will go to the quirk list. */
-       if (le16_to_cpu(dev->descriptor.idVendor) == 0x041e && 
-           le16_to_cpu(dev->descriptor.idProduct) == 0x3000) {
+       if (id == USB_ID(0x041e, 0x3000)) {
                if (snd_usb_extigy_boot_quirk(dev, intf) < 0)
                        goto __err_val;
                config = dev->actconfig;
@@ -3217,8 +3213,8 @@ static void *snd_usb_audio_probe(struct usb_device *dev,
                }
                for (i = 0; i < SNDRV_CARDS; i++)
                        if (enable[i] && ! usb_chip[i] &&
-                           (vid[i] == -1 || vid[i] == le16_to_cpu(dev->descriptor.idVendor)) &&
-                           (pid[i] == -1 || pid[i] == le16_to_cpu(dev->descriptor.idProduct))) {
+                           (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) &&
+                           (pid[i] == -1 || pid[i] == USB_ID_PRODUCT(id))) {
                                if (snd_usb_audio_create(dev, i, quirk, &chip) < 0) {
                                        goto __error;
                                }