From patchwork Fri Sep 16 09:12:49 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrej Krutak X-Patchwork-Id: 9335403 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7D16460839 for ; Fri, 16 Sep 2016 10:42:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6D07929F1D for ; Fri, 16 Sep 2016 10:42:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 61C3029F1F; Fri, 16 Sep 2016 10:42:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.3 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_NONE,RCVD_IN_SORBS_SPAM,T_DKIM_INVALID autolearn=no version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 61D0A29F1D for ; Fri, 16 Sep 2016 10:42:22 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 677E6266861; Fri, 16 Sep 2016 12:42:21 +0200 (CEST) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id E9945261560; Fri, 16 Sep 2016 12:40:03 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id A56EC266735; Fri, 16 Sep 2016 11:13:23 +0200 (CEST) Received: from mail-wm0-f67.google.com (mail-wm0-f67.google.com [74.125.82.67]) by alsa0.perex.cz (Postfix) with ESMTP id C0C17266718 for ; Fri, 16 Sep 2016 11:13:19 +0200 (CEST) Received: by mail-wm0-f67.google.com with SMTP id 133so2697786wmq.2 for ; Fri, 16 Sep 2016 02:13:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=b+7bPGBq00MTyReUgDCqtxwthAibYvoxB5a1HMjc7hE=; b=t+YO2eeex+xEOGn/6mygWYCsv5IE5To+pzNbRBKniQJ4fQYYftPqPTttvAAUjmYTV0 QUNyevm1+YbfbaXz/BpuQ3LiJ4HOX/ncOdIOsTqyy1WvuC1bnWM2KXrjtoSw2YH0goeH LM9vBnnFZWj/23BwHqvLhR3NXS8/YOAoLR9+S3DQcSUVZL5dgr33RzyuLfjJRF4XQl1j Vw5Hycx9nQAkRsXRVb6zstMXIce9ZQx/hWvHHK2kSFgmqfCtenGjMOCLON1FNlPkfpuM WbUllNIejitrtYbBE7x907xM/kKdwjbNUDhYzFYfk0y+2pyVXhF2gyNpvT0up0uJjM/D wwbQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=b+7bPGBq00MTyReUgDCqtxwthAibYvoxB5a1HMjc7hE=; b=CcvtSz0R1rTyUHWd4LclpaiPUWijVcTFITJqDf4rLJPXC5mCRKFoEALLF6jQIQVE6k t9L4/8xTTWOvs1T/m3zvoN1sQNJdXVTBiqX4TShq2HckaHnyxgPrB+uebsylVL8RQ2Fw FZb+Dmj7pmmfepCjyIoxsFn7N5VeBenXiG9/EJBreTogZIiVWPNMw07sgQyuI1QPtbjB fb2Oc1xhkXPOwJj+UU8T99yoQJhQ3Ony1ZTWZb7g194I24eGtFhg2gZaiPw4a0mo4aaM szXJxEev9JjYdLOgXBsXZ+3TuqdkL/lKlDW4zvHetqAJSZ6UfuFwuSxNSWFBW4IS0RHi rusQ== X-Gm-Message-State: AE9vXwNlSHenWGWoEpFbkjy5EKGQygg4txDOV9TyxpBm3zmMdcp5KWoKpfhUPRGWrs13PA== X-Received: by 10.28.129.145 with SMTP id c139mr7187120wmd.102.1474017199453; Fri, 16 Sep 2016 02:13:19 -0700 (PDT) Received: from localhost.localdomain ([217.30.74.231]) by smtp.gmail.com with ESMTPSA id u124sm6391513wmu.10.2016.09.16.02.13.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Sep 2016 02:13:18 -0700 (PDT) From: Andrej Krutak To: tiwai@suse.com, perex@perex.cz, stefanha@gmail.com, grabner@icg.tugraz.at, alsa-devel@alsa-project.org Date: Fri, 16 Sep 2016 11:12:49 +0200 Message-Id: <1474017177-23769-6-git-send-email-dev@andree.sk> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1474017177-23769-1-git-send-email-dev@andree.sk> References: <1470942147-19848-1-git-send-email-dev@andree.sk> <1474017177-23769-1-git-send-email-dev@andree.sk> Cc: Andrej Krutak Subject: [alsa-devel] [PATCH v3 05/12] ALSA: line6: Add LINE6_CAP_IN_NEEDS_OUT, a void playback stream during capture X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP E.g. POD X3 seems to require playback data to be sent to it to generate capture data. Otherwise the device stalls and doesn't send any more capture data until it's reset. Signed-off-by: Andrej Krutak --- sound/usb/line6/capture.c | 5 +++++ sound/usb/line6/driver.h | 4 +++- sound/usb/line6/pcm.c | 35 ++++++++++++++++++++++++++--------- sound/usb/line6/pcm.h | 4 +++- sound/usb/line6/toneport.c | 4 ++-- 5 files changed, 39 insertions(+), 13 deletions(-) diff --git a/sound/usb/line6/capture.c b/sound/usb/line6/capture.c index 7959aaa..bf159c4 100644 --- a/sound/usb/line6/capture.c +++ b/sound/usb/line6/capture.c @@ -232,6 +232,8 @@ static int snd_line6_capture_open(struct snd_pcm_substream *substream) if (err < 0) return err; + line6_pcm_acquire(line6pcm, LINE6_STREAM_CAPTURE_HELPER, false); + runtime->hw = line6pcm->properties->capture_hw; return 0; } @@ -239,6 +241,9 @@ static int snd_line6_capture_open(struct snd_pcm_substream *substream) /* close capture callback */ static int snd_line6_capture_close(struct snd_pcm_substream *substream) { + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + line6_pcm_release(line6pcm, LINE6_STREAM_CAPTURE_HELPER); return 0; } diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h index 2d32139..0bcab38 100644 --- a/sound/usb/line6/driver.h +++ b/sound/usb/line6/driver.h @@ -100,8 +100,10 @@ enum { LINE6_CAP_CONTROL = 1 << 0, /* device supports PCM input/output via USB */ LINE6_CAP_PCM = 1 << 1, - /* device support hardware monitoring */ + /* device supports hardware monitoring */ LINE6_CAP_HWMON = 1 << 2, + /* device requires output data when input is read */ + LINE6_CAP_IN_NEEDS_OUT = 1 << 3, }; /* diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c index 5fc1394..5f59993 100644 --- a/sound/usb/line6/pcm.c +++ b/sound/usb/line6/pcm.c @@ -52,7 +52,7 @@ static int snd_line6_impulse_volume_put(struct snd_kcontrol *kcontrol, line6pcm->impulse_volume = value; if (value > 0) { - err = line6_pcm_acquire(line6pcm, LINE6_STREAM_IMPULSE); + err = line6_pcm_acquire(line6pcm, LINE6_STREAM_IMPULSE, true); if (err < 0) { line6pcm->impulse_volume = 0; return err; @@ -242,6 +242,14 @@ int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: + if (s->stream == SNDRV_PCM_STREAM_CAPTURE && + (line6pcm->line6->properties->capabilities & + LINE6_CAP_IN_NEEDS_OUT)) { + err = line6_stream_start(line6pcm, SNDRV_PCM_STREAM_PLAYBACK, + LINE6_STREAM_CAPTURE_HELPER); + if (err < 0) + return err; + } err = line6_stream_start(line6pcm, s->stream, LINE6_STREAM_PCM); if (err < 0) @@ -250,6 +258,12 @@ int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: + if (s->stream == SNDRV_PCM_STREAM_CAPTURE && + (line6pcm->line6->properties->capabilities & + LINE6_CAP_IN_NEEDS_OUT)) { + line6_stream_stop(line6pcm, SNDRV_PCM_STREAM_PLAYBACK, + LINE6_STREAM_CAPTURE_HELPER); + } line6_stream_stop(line6pcm, s->stream, LINE6_STREAM_PCM); break; @@ -283,27 +297,30 @@ snd_pcm_uframes_t snd_line6_pointer(struct snd_pcm_substream *substream) return pstr->pos_done; } -/* Acquire and start duplex streams: +/* Acquire and optionally start duplex streams: * type is either LINE6_STREAM_IMPULSE or LINE6_STREAM_MONITOR */ -int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int type) +int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int type, bool start) { struct line6_pcm_stream *pstr; int ret = 0, dir; + /* TODO: We should assert SNDRV_PCM_STREAM_PLAYBACK/CAPTURE == 0/1 */ mutex_lock(&line6pcm->state_mutex); for (dir = 0; dir < 2; dir++) { pstr = get_stream(line6pcm, dir); - ret = line6_buffer_acquire(line6pcm, pstr, type); + ret = line6_buffer_acquire(line6pcm, pstr, dir, type); if (ret < 0) goto error; if (!pstr->running) line6_wait_clear_audio_urbs(line6pcm, pstr); } - for (dir = 0; dir < 2; dir++) { - ret = line6_stream_start(line6pcm, dir, type); - if (ret < 0) - goto error; + if (start) { + for (dir = 0; dir < 2; dir++) { + ret = line6_stream_start(line6pcm, dir, type); + if (ret < 0) + goto error; + } } error: mutex_unlock(&line6pcm->state_mutex); @@ -339,7 +356,7 @@ int snd_line6_hw_params(struct snd_pcm_substream *substream, struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream); mutex_lock(&line6pcm->state_mutex); - ret = line6_buffer_acquire(line6pcm, pstr, LINE6_STREAM_PCM); + ret = line6_buffer_acquire(line6pcm, pstr, substream->stream, LINE6_STREAM_PCM); if (ret < 0) goto error; diff --git a/sound/usb/line6/pcm.h b/sound/usb/line6/pcm.h index 58d36f9..5f796ef8 100644 --- a/sound/usb/line6/pcm.h +++ b/sound/usb/line6/pcm.h @@ -72,6 +72,7 @@ enum { LINE6_STREAM_PCM, LINE6_STREAM_MONITOR, LINE6_STREAM_IMPULSE, + LINE6_STREAM_CAPTURE_HELPER, }; /* misc bit flags for PCM operation */ @@ -190,7 +191,8 @@ extern int snd_line6_hw_params(struct snd_pcm_substream *substream, extern int snd_line6_hw_free(struct snd_pcm_substream *substream); extern snd_pcm_uframes_t snd_line6_pointer(struct snd_pcm_substream *substream); extern void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm); -extern int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int type); +extern int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int type, + bool start); extern void line6_pcm_release(struct snd_line6_pcm *line6pcm, int type); #endif diff --git a/sound/usb/line6/toneport.c b/sound/usb/line6/toneport.c index da76e03..8e22f43 100644 --- a/sound/usb/line6/toneport.c +++ b/sound/usb/line6/toneport.c @@ -177,7 +177,7 @@ static int snd_toneport_monitor_put(struct snd_kcontrol *kcontrol, line6pcm->volume_monitor = ucontrol->value.integer.value[0]; if (line6pcm->volume_monitor > 0) { - err = line6_pcm_acquire(line6pcm, LINE6_STREAM_MONITOR); + err = line6_pcm_acquire(line6pcm, LINE6_STREAM_MONITOR, true); if (err < 0) { line6pcm->volume_monitor = 0; line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR); @@ -246,7 +246,7 @@ static void toneport_start_pcm(unsigned long arg) struct usb_line6_toneport *toneport = (struct usb_line6_toneport *)arg; struct usb_line6 *line6 = &toneport->line6; - line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR); + line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR, true); } /* control definition */