diff options
Diffstat (limited to 'drivers/usb/gadget/function/u_audio.c')
| -rw-r--r-- | drivers/usb/gadget/function/u_audio.c | 52 |
1 files changed, 39 insertions, 13 deletions
diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c index 89af0feb7512..ca8dbec65f73 100644 --- a/drivers/usb/gadget/function/u_audio.c +++ b/drivers/usb/gadget/function/u_audio.c @@ -592,16 +592,25 @@ int u_audio_start_capture(struct g_audio *audio_dev) struct usb_ep *ep, *ep_fback; struct uac_rtd_params *prm; struct uac_params *params = &audio_dev->params; - int req_len, i; + int req_len, i, ret; prm = &uac->c_prm; dev_dbg(dev, "start capture with rate %d\n", prm->srate); ep = audio_dev->out_ep; - config_ep_by_speed(gadget, &audio_dev->func, ep); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed for out_ep failed (%d)\n", ret); + return ret; + } + req_len = ep->maxpacket; prm->ep_enabled = true; - usb_ep_enable(ep); + ret = usb_ep_enable(ep); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for out_ep (%d)\n", ret); + return ret; + } for (i = 0; i < params->req_number; i++) { if (!prm->reqs[i]) { @@ -629,9 +638,18 @@ int u_audio_start_capture(struct g_audio *audio_dev) return 0; /* Setup feedback endpoint */ - config_ep_by_speed(gadget, &audio_dev->func, ep_fback); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep_fback); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed in_ep_fback failed (%d)\n", ret); + return ret; // TODO: Clean up out_ep + } + prm->fb_ep_enabled = true; - usb_ep_enable(ep_fback); + ret = usb_ep_enable(ep_fback); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for in_ep_fback (%d)\n", ret); + return ret; // TODO: Clean up out_ep + } req_len = ep_fback->maxpacket; req_fback = usb_ep_alloc_request(ep_fback, GFP_ATOMIC); @@ -687,13 +705,17 @@ int u_audio_start_playback(struct g_audio *audio_dev) struct uac_params *params = &audio_dev->params; unsigned int factor; const struct usb_endpoint_descriptor *ep_desc; - int req_len, i; + int req_len, i, ret; unsigned int p_pktsize; prm = &uac->p_prm; dev_dbg(dev, "start playback with rate %d\n", prm->srate); ep = audio_dev->in_ep; - config_ep_by_speed(gadget, &audio_dev->func, ep); + ret = config_ep_by_speed(gadget, &audio_dev->func, ep); + if (ret < 0) { + dev_err(dev, "config_ep_by_speed for in_ep failed (%d)\n", ret); + return ret; + } ep_desc = ep->desc; /* @@ -720,7 +742,11 @@ int u_audio_start_playback(struct g_audio *audio_dev) uac->p_residue_mil = 0; prm->ep_enabled = true; - usb_ep_enable(ep); + ret = usb_ep_enable(ep); + if (ret < 0) { + dev_err(dev, "usb_ep_enable failed for in_ep (%d)\n", ret); + return ret; + } for (i = 0; i < params->req_number; i++) { if (!prm->reqs[i]) { @@ -1114,35 +1140,35 @@ static int u_audio_rate_get(struct snd_kcontrol *kcontrol, } static struct snd_kcontrol_new u_audio_controls[] = { - [UAC_FBACK_CTRL] { + [UAC_FBACK_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "Capture Pitch 1000000", .info = u_audio_pitch_info, .get = u_audio_pitch_get, .put = u_audio_pitch_put, }, - [UAC_P_PITCH_CTRL] { + [UAC_P_PITCH_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "Playback Pitch 1000000", .info = u_audio_pitch_info, .get = u_audio_pitch_get, .put = u_audio_pitch_put, }, - [UAC_MUTE_CTRL] { + [UAC_MUTE_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "", /* will be filled later */ .info = u_audio_mute_info, .get = u_audio_mute_get, .put = u_audio_mute_put, }, - [UAC_VOLUME_CTRL] { + [UAC_VOLUME_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "", /* will be filled later */ .info = u_audio_volume_info, .get = u_audio_volume_get, .put = u_audio_volume_put, }, - [UAC_RATE_CTRL] { + [UAC_RATE_CTRL] = { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "", /* will be filled later */ .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, |