aboutsummaryrefslogtreecommitdiff
path: root/sound
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2009-04-07 04:16:32 +0200
committerTakashi Iwai <tiwai@suse.de>2009-04-07 04:16:32 +0200
commit8c941de17679345a52fe53ac32d8aa53ebea369d (patch)
tree7aa781bc3c55d2d526ba78ab4af510a18dda6956 /sound
parent5f9c510e9e18cd029e15190d35dd4271f2ef393b (diff)
parenta7d9c0990d5503775784fef7ff44d74d7e3294fd (diff)
downloadlinux-linaro-8c941de17679345a52fe53ac32d8aa53ebea369d.tar.gz
Merge branch 'topic/usb-audio' into for-linus
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/usbaudio.c255
1 files changed, 120 insertions, 135 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index c2db0f95968..823296d7d57 100644
--- a/sound/usb/usbaudio.c
+++ b/sound/usb/usbaudio.c
@@ -121,6 +121,7 @@ struct audioformat {
unsigned char attributes; /* corresponding attributes of cs endpoint */
unsigned char endpoint; /* endpoint */
unsigned char ep_attr; /* endpoint attributes */
+ unsigned char datainterval; /* log_2 of data packet interval */
unsigned int maxpacksize; /* max. packet size */
unsigned int rates; /* rate bitmasks */
unsigned int rate_min, rate_max; /* min/max rates */
@@ -170,7 +171,6 @@ struct snd_usb_substream {
unsigned int curframesize; /* current packet size in frames (for capture) */
unsigned int fill_max: 1; /* fill max packet size always */
unsigned int fmt_type; /* USB audio format type (1-3) */
- unsigned int packs_per_ms; /* packets per millisecond (for playback) */
unsigned int running: 1; /* running status */
@@ -607,9 +607,7 @@ static int prepare_playback_urb(struct snd_usb_substream *subs,
break;
}
}
- /* finish at the frame boundary at/after the period boundary */
- if (period_elapsed &&
- (i & (subs->packs_per_ms - 1)) == subs->packs_per_ms - 1)
+ if (period_elapsed) /* finish at the period boundary */
break;
}
if (subs->hwptr_done + offs > runtime->buffer_size) {
@@ -1067,7 +1065,6 @@ static int init_substream_urbs(struct snd_usb_substream *subs, unsigned int peri
packs_per_ms = 8 >> subs->datainterval;
else
packs_per_ms = 1;
- subs->packs_per_ms = packs_per_ms;
if (is_playback) {
urb_packs = max(nrpacks, 1);
@@ -1087,18 +1084,17 @@ static int init_substream_urbs(struct snd_usb_substream *subs, unsigned int peri
minsize -= minsize >> 3;
minsize = max(minsize, 1u);
total_packs = (period_bytes + minsize - 1) / minsize;
- /* round up to multiple of packs_per_ms */
- total_packs = (total_packs + packs_per_ms - 1)
- & ~(packs_per_ms - 1);
/* we need at least two URBs for queueing */
- if (total_packs < 2 * packs_per_ms) {
- total_packs = 2 * packs_per_ms;
+ if (total_packs < 2) {
+ total_packs = 2;
} else {
/* and we don't want too long a queue either */
maxpacks = max(MAX_QUEUE * packs_per_ms, urb_packs * 2);
total_packs = min(total_packs, maxpacks);
}
} else {
+ while (urb_packs > 1 && urb_packs * maxsize >= period_bytes)
+ urb_packs >>= 1;
total_packs = MAX_URBS * urb_packs;
}
subs->nurbs = (total_packs + urb_packs - 1) / urb_packs;
@@ -1350,12 +1346,7 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt)
subs->datapipe = usb_sndisocpipe(dev, ep);
else
subs->datapipe = usb_rcvisocpipe(dev, ep);
- if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH &&
- get_endpoint(alts, 0)->bInterval >= 1 &&
- get_endpoint(alts, 0)->bInterval <= 4)
- subs->datainterval = get_endpoint(alts, 0)->bInterval - 1;
- else
- subs->datainterval = 0;
+ subs->datainterval = fmt->datainterval;
subs->syncpipe = subs->syncinterval = 0;
subs->maxpacksize = fmt->maxpacksize;
subs->fill_max = 0;
@@ -1568,11 +1559,15 @@ static struct snd_pcm_hardware snd_usb_hardware =
#define hwc_debug(fmt, args...) /**/
#endif
-static int hw_check_valid_format(struct snd_pcm_hw_params *params, struct audioformat *fp)
+static int hw_check_valid_format(struct snd_usb_substream *subs,
+ struct snd_pcm_hw_params *params,
+ struct audioformat *fp)
{
struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+ struct snd_interval *pt = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME);
+ unsigned int ptime;
/* check the format */
if (!snd_mask_test(fmts, fp->format)) {
@@ -1593,6 +1588,14 @@ static int hw_check_valid_format(struct snd_pcm_hw_params *params, struct audiof
hwc_debug(" > check: rate_max %d < min %d\n", fp->rate_max, it->min);
return 0;
}
+ /* check whether the period time is >= the data packet interval */
+ if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH) {
+ ptime = 125 * (1 << fp->datainterval);
+ if (ptime > pt->max || (ptime == pt->max && pt->openmax)) {
+ hwc_debug(" > check: ptime %u > max %u\n", ptime, pt->max);
+ return 0;
+ }
+ }
return 1;
}
@@ -1611,7 +1614,7 @@ static int hw_rule_rate(struct snd_pcm_hw_params *params,
list_for_each(p, &subs->fmt_list) {
struct audioformat *fp;
fp = list_entry(p, struct audioformat, list);
- if (!hw_check_valid_format(params, fp))
+ if (!hw_check_valid_format(subs, params, fp))
continue;
if (changed++) {
if (rmin > fp->rate_min)
@@ -1665,7 +1668,7 @@ static int hw_rule_channels(struct snd_pcm_hw_params *params,
list_for_each(p, &subs->fmt_list) {
struct audioformat *fp;
fp = list_entry(p, struct audioformat, list);
- if (!hw_check_valid_format(params, fp))
+ if (!hw_check_valid_format(subs, params, fp))
continue;
if (changed++) {
if (rmin > fp->channels)
@@ -1718,7 +1721,7 @@ static int hw_rule_format(struct snd_pcm_hw_params *params,
list_for_each(p, &subs->fmt_list) {
struct audioformat *fp;
fp = list_entry(p, struct audioformat, list);
- if (!hw_check_valid_format(params, fp))
+ if (!hw_check_valid_format(subs, params, fp))
continue;
fbits |= (1ULL << fp->format);
}
@@ -1736,95 +1739,42 @@ static int hw_rule_format(struct snd_pcm_hw_params *params,
return changed;
}
-#define MAX_MASK 64
-
-/*
- * check whether the registered audio formats need special hw-constraints
- */
-static int check_hw_params_convention(struct snd_usb_substream *subs)
+static int hw_rule_period_time(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
{
- int i;
- u32 *channels;
- u32 *rates;
- u32 cmaster, rmaster;
- u32 rate_min = 0, rate_max = 0;
- struct list_head *p;
- int err = 1;
-
- channels = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
- rates = kcalloc(MAX_MASK, sizeof(u32), GFP_KERNEL);
- if (!channels || !rates) {
- err = -ENOMEM;
- goto __out;
- }
+ struct snd_usb_substream *subs = rule->private;
+ struct audioformat *fp;
+ struct snd_interval *it;
+ unsigned char min_datainterval;
+ unsigned int pmin;
+ int changed;
- list_for_each(p, &subs->fmt_list) {
- struct audioformat *f;
- f = list_entry(p, struct audioformat, list);
- /* unconventional channels? */
- if (f->channels > 32)
- goto __out;
- /* continuous rate min/max matches? */
- if (f->rates & SNDRV_PCM_RATE_CONTINUOUS) {
- if (rate_min && f->rate_min != rate_min)
- goto __out;
- if (rate_max && f->rate_max != rate_max)
- goto __out;
- rate_min = f->rate_min;
- rate_max = f->rate_max;
- }
- /* combination of continuous rates and fixed rates? */
- if (rates[f->format] & SNDRV_PCM_RATE_CONTINUOUS) {
- if (f->rates != rates[f->format])
- goto __out;
- }
- if (f->rates & SNDRV_PCM_RATE_CONTINUOUS) {
- if (rates[f->format] && rates[f->format] != f->rates)
- goto __out;
- }
- channels[f->format] |= 1 << (f->channels - 1);
- rates[f->format] |= f->rates;
- /* needs knot? */
- if (f->rates & SNDRV_PCM_RATE_KNOT)
- goto __out;
- }
- /* check whether channels and rates match for all formats */
- cmaster = rmaster = 0;
- for (i = 0; i < MAX_MASK; i++) {
- if (cmaster != channels[i] && cmaster && channels[i])
- goto __out;
- if (rmaster != rates[i] && rmaster && rates[i])
- goto __out;
- if (channels[i])
- cmaster = channels[i];
- if (rates[i])
- rmaster = rates[i];
- }
- /* check whether channels match for all distinct rates */
- memset(channels, 0, MAX_MASK * sizeof(u32));
- list_for_each(p, &subs->fmt_list) {
- struct audioformat *f;
- f = list_entry(p, struct audioformat, list);
- if (f->rates & SNDRV_PCM_RATE_CONTINUOUS)
+ it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME);
+ hwc_debug("hw_rule_period_time: (%u,%u)\n", it->min, it->max);
+ min_datainterval = 0xff;
+ list_for_each_entry(fp, &subs->fmt_list, list) {
+ if (!hw_check_valid_format(subs, params, fp))
continue;
- for (i = 0; i < 32; i++) {
- if (f->rates & (1 << i))
- channels[i] |= 1 << (f->channels - 1);
- }
+ min_datainterval = min(min_datainterval, fp->datainterval);
}
- cmaster = 0;
- for (i = 0; i < 32; i++) {
- if (cmaster != channels[i] && cmaster && channels[i])
- goto __out;
- if (channels[i])
- cmaster = channels[i];
+ if (min_datainterval == 0xff) {
+ hwc_debug(" --> get emtpy\n");
+ it->empty = 1;
+ return -EINVAL;
}
- err = 0;
-
- __out:
- kfree(channels);
- kfree(rates);
- return err;
+ pmin = 125 * (1 << min_datainterval);
+ changed = 0;
+ if (it->min < pmin) {
+ it->min = pmin;
+ it->openmin = 0;
+ changed = 1;
+ }
+ if (snd_interval_checkempty(it)) {
+ it->empty = 1;
+ return -EINVAL;
+ }
+ hwc_debug(" --> (%u,%u) (changed = %d)\n", it->min, it->max, changed);
+ return changed;
}
/*
@@ -1872,6 +1822,8 @@ static int snd_usb_pcm_check_knot(struct snd_pcm_runtime *runtime,
static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs)
{
struct list_head *p;
+ unsigned int pt, ptmin;
+ int param_period_time_if_needed;
int err;
runtime->hw.formats = subs->formats;
@@ -1881,6 +1833,7 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre
runtime->hw.channels_min = 256;
runtime->hw.channels_max = 0;
runtime->hw.rates = 0;
+ ptmin = UINT_MAX;
/* check min/max rates and channels */
list_for_each(p, &subs->fmt_list) {
struct audioformat *fp;
@@ -1899,42 +1852,54 @@ static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substre
runtime->hw.period_bytes_min = runtime->hw.period_bytes_max =
fp->frame_size;
}
+ pt = 125 * (1 << fp->datainterval);
+ ptmin = min(ptmin, pt);
}
- /* set the period time minimum 1ms */
- /* FIXME: high-speed mode allows 125us minimum period, but many parts
- * in the current code assume the 1ms period.
- */
+ param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME;
+ if (snd_usb_get_speed(subs->dev) != USB_SPEED_HIGH)
+ /* full speed devices have fixed data packet interval */
+ ptmin = 1000;
+ if (ptmin == 1000)
+ /* if period time doesn't go below 1 ms, no rules needed */
+ param_period_time_if_needed = -1;
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME,
- 1000,
- /*(nrpacks * MAX_URBS) * 1000*/ UINT_MAX);
-
- err = check_hw_params_convention(subs);
- if (err < 0)
+ ptmin, UINT_MAX);
+
+ if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ hw_rule_rate, subs,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ param_period_time_if_needed,
+ -1)) < 0)
return err;
- else if (err) {
- hwc_debug("setting extra hw constraints...\n");
- if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
- hw_rule_rate, subs,
- SNDRV_PCM_HW_PARAM_FORMAT,
- SNDRV_PCM_HW_PARAM_CHANNELS,
- -1)) < 0)
- return err;
- if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
- hw_rule_channels, subs,
- SNDRV_PCM_HW_PARAM_FORMAT,
- SNDRV_PCM_HW_PARAM_RATE,
- -1)) < 0)
- return err;
- if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
- hw_rule_format, subs,
- SNDRV_PCM_HW_PARAM_RATE,
- SNDRV_PCM_HW_PARAM_CHANNELS,
- -1)) < 0)
- return err;
- if ((err = snd_usb_pcm_check_knot(runtime, subs)) < 0)
+ if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ hw_rule_channels, subs,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ SNDRV_PCM_HW_PARAM_RATE,
+ param_period_time_if_needed,
+ -1)) < 0)
+ return err;
+ if ((err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
+ hw_rule_format, subs,
+ SNDRV_PCM_HW_PARAM_RATE,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ param_period_time_if_needed,
+ -1)) < 0)
+ return err;
+ if (param_period_time_if_needed >= 0) {
+ err = snd_pcm_hw_rule_add(runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+ hw_rule_period_time, subs,
+ SNDRV_PCM_HW_PARAM_FORMAT,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ SNDRV_PCM_HW_PARAM_RATE,
+ -1);
+ if (err < 0)
return err;
}
+ if ((err = snd_usb_pcm_check_knot(runtime, subs)) < 0)
+ return err;
return 0;
}
@@ -2147,7 +2112,8 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s
fp = list_entry(p, struct audioformat, list);
snd_iprintf(buffer, " Interface %d\n", fp->iface);
snd_iprintf(buffer, " Altset %d\n", fp->altsetting);
- snd_iprintf(buffer, " Format: %#x\n", fp->format);
+ snd_iprintf(buffer, " Format: %#x (%d bits)\n",
+ fp->format, snd_pcm_format_width(fp->format));
snd_iprintf(buffer, " Channels: %d\n", fp->channels);
snd_iprintf(buffer, " Endpoint: %d %s (%s)\n",
fp->endpoint & USB_ENDPOINT_NUMBER_MASK,
@@ -2166,6 +2132,9 @@ static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct s
}
snd_iprintf(buffer, "\n");
}
+ if (snd_usb_get_speed(subs->dev) == USB_SPEED_HIGH)
+ snd_iprintf(buffer, " Data packet interval: %d us\n",
+ 125 * (1 << fp->datainterval));
// snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize);
// snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes);
}
@@ -2659,6 +2628,17 @@ static int parse_audio_format(struct snd_usb_audio *chip, struct audioformat *fp
return 0;
}
+static unsigned char parse_datainterval(struct snd_usb_audio *chip,
+ struct usb_host_interface *alts)
+{
+ if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH &&
+ get_endpoint(alts, 0)->bInterval >= 1 &&
+ get_endpoint(alts, 0)->bInterval <= 4)
+ return get_endpoint(alts, 0)->bInterval - 1;
+ else
+ return 0;
+}
+
static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
int iface, int altno);
static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
@@ -2764,6 +2744,7 @@ static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
fp->altset_idx = i;
fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+ fp->datainterval = parse_datainterval(chip, alts);
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
if (snd_usb_get_speed(dev) == USB_SPEED_HIGH)
fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
@@ -2955,6 +2936,7 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
return -EINVAL;
}
alts = &iface->altsetting[fp->altset_idx];
+ fp->datainterval = parse_datainterval(chip, alts);
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
usb_set_interface(chip->dev, fp->iface, 0);
init_usb_pitch(chip->dev, fp->iface, alts, fp);
@@ -3049,6 +3031,7 @@ static int create_uaxx_quirk(struct snd_usb_audio *chip,
fp->iface = altsd->bInterfaceNumber;
fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+ fp->datainterval = 0;
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
switch (fp->maxpacksize) {
@@ -3116,6 +3099,7 @@ static int create_ua1000_quirk(struct snd_usb_audio *chip,
fp->iface = altsd->bInterfaceNumber;
fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+ fp->datainterval = parse_datainterval(chip, alts);
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
fp->rate_max = fp->rate_min = combine_triple(&alts->extra[8]);
@@ -3168,6 +3152,7 @@ static int create_ua101_quirk(struct snd_usb_audio *chip,
fp->iface = altsd->bInterfaceNumber;
fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
+ fp->datainterval = parse_datainterval(chip, alts);
fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
fp->rate_max = fp->rate_min = combine_triple(&alts->extra[15]);