*/
-#include <sound/driver.h>
#include <linux/bitops.h>
#include <linux/init.h>
#include <linux/list.h>
unsigned int rate_min, rate_max; /* min/max rates */
unsigned int nr_rates; /* number of rate table entries */
unsigned int *rate_table; /* rate table */
- unsigned int needs_knot; /* any unusual rates? */
};
struct snd_usb_substream;
/* close the old interface */
if (subs->interface >= 0 && subs->interface != fmt->iface) {
- usb_set_interface(subs->dev, subs->interface, 0);
+ if (usb_set_interface(subs->dev, subs->interface, 0) < 0) {
+ snd_printk(KERN_ERR "%d:%d:%d: return to setting 0 failed\n",
+ dev->devnum, fmt->iface, fmt->altsetting);
+ return -EIO;
+ }
subs->interface = -1;
subs->format = 0;
}
channels[f->format] |= (1 << f->channels);
rates[f->format] |= f->rates;
/* needs knot? */
- if (f->needs_knot)
+ if (f->rates & SNDRV_PCM_RATE_KNOT)
goto __out;
}
/* check whether channels and rates match for all formats */
if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS)
return 0;
count += fp->nr_rates;
- if (fp->needs_knot)
+ if (fp->rates & SNDRV_PCM_RATE_KNOT)
needs_knot = 1;
}
if (!needs_knot)
const struct usb_device_id *id);
static void usb_audio_disconnect(struct usb_interface *intf);
+#ifdef CONFIG_PM
+static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message);
+static int usb_audio_resume(struct usb_interface *intf);
+#else
+#define usb_audio_suspend NULL
+#define usb_audio_resume NULL
+#endif
+
static struct usb_device_id usb_audio_ids [] = {
#include "usbquirks.h"
{ .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS),
.name = "snd-usb-audio",
.probe = usb_audio_probe,
.disconnect = usb_audio_disconnect,
+ .suspend = usb_audio_suspend,
+ .resume = usb_audio_resume,
.id_table = usb_audio_ids,
};
return 1;
break;
case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
- return 1;
+ if (device_setup[chip->index] == 0x00 ||
+ fp->altsetting==1 || fp->altsetting==2 || fp->altsetting==3)
+ return 1;
}
return 0;
}
unsigned char *fmt, int offset)
{
int nr_rates = fmt[offset];
- int found;
+
if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) {
snd_printk(KERN_ERR "%d:%u:%d : invalid FORMAT_TYPE desc\n",
chip->dev->devnum, fp->iface, fp->altsetting);
/*
* build the rate table and bitmap flags
*/
- int r, idx, c;
+ int r, idx;
unsigned int nonzero_rates = 0;
- /* this table corresponds to the SNDRV_PCM_RATE_XXX bit */
- static unsigned int conv_rates[] = {
- 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
- 64000, 88200, 96000, 176400, 192000
- };
+
fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL);
if (fp->rate_table == NULL) {
snd_printk(KERN_ERR "cannot malloc\n");
return -1;
}
- fp->needs_knot = 0;
fp->nr_rates = nr_rates;
fp->rate_min = fp->rate_max = combine_triple(&fmt[8]);
for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) {
fp->rate_min = rate;
else if (rate > fp->rate_max)
fp->rate_max = rate;
- found = 0;
- for (c = 0; c < (int)ARRAY_SIZE(conv_rates); c++) {
- if (rate == conv_rates[c]) {
- found = 1;
- fp->rates |= (1 << c);
- break;
- }
- }
- if (!found)
- fp->needs_knot = 1;
+ fp->rates |= snd_pcm_rate_to_rate_bit(rate);
}
if (!nonzero_rates) {
hwc_debug("All rates were zero. Skipping format!\n");
return -1;
}
- if (fp->needs_knot)
- fp->rates |= SNDRV_PCM_RATE_KNOT;
} else {
/* continuous rates */
fp->rates = SNDRV_PCM_RATE_CONTINUOUS;
* but we give normal PCM format to get the existing
* apps working...
*/
- pcm_format = SNDRV_PCM_FORMAT_S16_LE;
+ switch (chip->usb_id) {
+
+ case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
+ if (device_setup[chip->index] == 0x00 &&
+ fp->altsetting == 6)
+ pcm_format = SNDRV_PCM_FORMAT_S16_BE;
+ else
+ pcm_format = SNDRV_PCM_FORMAT_S16_LE;
+ break;
+ default:
+ pcm_format = SNDRV_PCM_FORMAT_S16_LE;
+ }
} else {
pcm_format = parse_audio_format_i_type(chip, fp, format, fmt);
if (pcm_format < 0)
/* skip non-supported classes */
continue;
}
+ if (snd_usb_get_speed(dev) == USB_SPEED_LOW) {
+ snd_printk(KERN_ERR "low speed audio streaming not supported\n");
+ continue;
+ }
if (! parse_audio_endpoints(chip, j)) {
usb_set_interface(dev, j, 0); /* reset the current interface */
usb_driver_claim_interface(&usb_audio_driver, iface, (void *)-1L);
struct audioformat *fp;
struct usb_host_interface *alts;
int stream, err;
- int *rate_table = NULL;
+ unsigned *rate_table = NULL;
fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL);
if (! fp) {
static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
int iface, int altno)
{
+ /* Reset ALL ifaces to 0 altsetting.
+ * Call it for every possible altsetting of every interface.
+ */
+ usb_set_interface(chip->dev, iface, 0);
+
if (device_setup[chip->index] & AUDIOPHILE_SET) {
if ((device_setup[chip->index] & AUDIOPHILE_SET_DTS)
&& altno != 6)
*rchip = NULL;
- if (snd_usb_get_speed(dev) != USB_SPEED_FULL &&
+ if (snd_usb_get_speed(dev) != USB_SPEED_LOW &&
+ snd_usb_get_speed(dev) != USB_SPEED_FULL &&
snd_usb_get_speed(dev) != USB_SPEED_HIGH) {
snd_printk(KERN_ERR "unknown device speed %d\n", snd_usb_get_speed(dev));
return -ENXIO;
usb_make_path(dev, card->longname + len, sizeof(card->longname) - len);
strlcat(card->longname,
- snd_usb_get_speed(dev) == USB_SPEED_FULL ? ", full speed" : ", high speed",
+ snd_usb_get_speed(dev) == USB_SPEED_LOW ? ", low speed" :
+ snd_usb_get_speed(dev) == USB_SPEED_FULL ? ", full speed" :
+ ", high speed",
sizeof(card->longname));
snd_usb_audio_create_proc(chip);
dev_get_drvdata(&intf->dev));
}
+#ifdef CONFIG_PM
+static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct snd_usb_audio *chip = dev_get_drvdata(&intf->dev);
+ struct list_head *p;
+ struct snd_usb_stream *as;
+
+ if (chip == (void *)-1L)
+ return 0;
+
+ snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
+ if (!chip->num_suspended_intf++) {
+ list_for_each(p, &chip->pcm_list) {
+ as = list_entry(p, struct snd_usb_stream, list);
+ snd_pcm_suspend_all(as->pcm);
+ }
+ }
+
+ return 0;
+}
+
+static int usb_audio_resume(struct usb_interface *intf)
+{
+ struct snd_usb_audio *chip = dev_get_drvdata(&intf->dev);
+
+ if (chip == (void *)-1L)
+ return 0;
+ if (--chip->num_suspended_intf)
+ return 0;
+ /*
+ * ALSA leaves material resumption to user space
+ * we just notify
+ */
+
+ snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
+
+ return 0;
+}
+#endif /* CONFIG_PM */
static int __init snd_usb_audio_init(void)
{
git.samba.org / sfrench / cifs-2.6.git / blobdiff