diff options
| -rw-r--r-- | sound/usb/card.h | 2 | ||||
| -rw-r--r-- | sound/usb/stream.c | 66 |
2 files changed, 60 insertions, 8 deletions
diff --git a/sound/usb/card.h b/sound/usb/card.h index 9b41b7dda84f..ac785d15ced4 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -37,6 +37,7 @@ struct audioformat { struct snd_usb_substream; struct snd_usb_endpoint; +struct snd_usb_power_domain; struct snd_urb_ctx { struct urb *urb; @@ -115,6 +116,7 @@ struct snd_usb_substream { int interface; /* current interface */ int endpoint; /* assigned endpoint */ struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ + struct snd_usb_power_domain *str_pd; /* UAC3 Power Domain for streaming path */ snd_pcm_format_t pcm_format; /* current audio format (for hw_params callback) */ unsigned int channels; /* current number of channels (for hw_params callback) */ unsigned int channels_max; /* max channels in the all audiofmts */ diff --git a/sound/usb/stream.c b/sound/usb/stream.c index 729afd808cc4..c0567fa1e84b 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -37,6 +37,7 @@ #include "format.h" #include "clock.h" #include "stream.h" +#include "power.h" /* * free a substream @@ -53,6 +54,7 @@ static void free_substream(struct snd_usb_substream *subs) kfree(fp); } kfree(subs->rate_list.list); + kfree(subs->str_pd); } @@ -82,7 +84,8 @@ static void snd_usb_audio_pcm_free(struct snd_pcm *pcm) static void snd_usb_init_substream(struct snd_usb_stream *as, int stream, - struct audioformat *fp) + struct audioformat *fp, + struct snd_usb_power_domain *pd) { struct snd_usb_substream *subs = &as->substream[stream]; @@ -107,6 +110,9 @@ static void snd_usb_init_substream(struct snd_usb_stream *as, if (fp->channels > subs->channels_max) subs->channels_max = fp->channels; + if (pd) + subs->str_pd = pd; + snd_usb_preallocate_buffer(subs); } @@ -468,9 +474,11 @@ snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor * fmt_list and will be freed on the chip instance release. do not free * fp or do remove it from the substream fmt_list to avoid double-free. */ -int snd_usb_add_audio_stream(struct snd_usb_audio *chip, - int stream, - struct audioformat *fp) +static int __snd_usb_add_audio_stream(struct snd_usb_audio *chip, + int stream, + struct audioformat *fp, + struct snd_usb_power_domain *pd) + { struct snd_usb_stream *as; struct snd_usb_substream *subs; @@ -498,7 +506,7 @@ int snd_usb_add_audio_stream(struct snd_usb_audio *chip, err = snd_pcm_new_stream(as->pcm, stream, 1); if (err < 0) return err; - snd_usb_init_substream(as, stream, fp); + snd_usb_init_substream(as, stream, fp, pd); return add_chmap(as->pcm, stream, subs); } @@ -526,7 +534,7 @@ int snd_usb_add_audio_stream(struct snd_usb_audio *chip, else strcpy(pcm->name, "USB Audio"); - snd_usb_init_substream(as, stream, fp); + snd_usb_init_substream(as, stream, fp, pd); /* * Keep using head insertion for M-Audio Audiophile USB (tm) which has a @@ -544,6 +552,21 @@ int snd_usb_add_audio_stream(struct snd_usb_audio *chip, return add_chmap(pcm, stream, &as->substream[stream]); } +int snd_usb_add_audio_stream(struct snd_usb_audio *chip, + int stream, + struct audioformat *fp) +{ + return __snd_usb_add_audio_stream(chip, stream, fp, NULL); +} + +static int snd_usb_add_audio_stream_v3(struct snd_usb_audio *chip, + int stream, + struct audioformat *fp, + struct snd_usb_power_domain *pd) +{ + return __snd_usb_add_audio_stream(chip, stream, fp, pd); +} + static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip, struct usb_host_interface *alts, int protocol, int iface_no) @@ -819,6 +842,7 @@ found_clock: static struct audioformat * snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip, struct usb_host_interface *alts, + struct snd_usb_power_domain **pd_out, int iface_no, int altset_idx, int altno, int stream) { @@ -829,6 +853,7 @@ snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip, struct uac3_as_header_descriptor *as = NULL; struct uac3_hc_descriptor_header hc_header; struct snd_pcm_chmap_elem *chmap; + struct snd_usb_power_domain *pd; unsigned char badd_profile; u64 badd_formats = 0; unsigned int num_channels; @@ -1008,12 +1033,28 @@ found_clock: fp->rate_max = UAC3_BADD_SAMPLING_RATE; fp->rates = SNDRV_PCM_RATE_CONTINUOUS; + pd = kzalloc(sizeof(pd), GFP_KERNEL); + if (!pd) { + kfree(fp->rate_table); + kfree(fp); + return NULL; + } + pd->pd_id = (stream == SNDRV_PCM_STREAM_PLAYBACK) ? + UAC3_BADD_PD_ID10 : UAC3_BADD_PD_ID11; + pd->pd_d1d0_rec = UAC3_BADD_PD_RECOVER_D1D0; + pd->pd_d2d0_rec = UAC3_BADD_PD_RECOVER_D2D0; + } else { fp->attributes = parse_uac_endpoint_attributes(chip, alts, UAC_VERSION_3, iface_no); + + pd = snd_usb_find_power_domain(chip->ctrl_intf, + as->bTerminalLink); + /* ok, let's parse further... */ if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) { + kfree(pd); kfree(fp->chmap); kfree(fp->rate_table); kfree(fp); @@ -1021,6 +1062,9 @@ found_clock: } } + if (pd) + *pd_out = pd; + return fp; } @@ -1032,6 +1076,7 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no) struct usb_interface_descriptor *altsd; int i, altno, err, stream; struct audioformat *fp = NULL; + struct snd_usb_power_domain *pd = NULL; int num, protocol; dev = chip->dev; @@ -1114,7 +1159,7 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no) break; } case UAC_VERSION_3: - fp = snd_usb_get_audioformat_uac3(chip, alts, + fp = snd_usb_get_audioformat_uac3(chip, alts, &pd, iface_no, i, altno, stream); break; } @@ -1125,9 +1170,14 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no) return PTR_ERR(fp); dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint); - err = snd_usb_add_audio_stream(chip, stream, fp); + if (protocol == UAC_VERSION_3) + err = snd_usb_add_audio_stream_v3(chip, stream, fp, pd); + else + err = snd_usb_add_audio_stream(chip, stream, fp); + if (err < 0) { list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(pd); kfree(fp->rate_table); kfree(fp->chmap); kfree(fp); |