Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/drivers/media/pci/ivtv/ivtv-alsa.h b/drivers/media/pci/ivtv/ivtv-alsa.h
new file mode 100644
index 000000000..eae646223
--- /dev/null
+++ b/drivers/media/pci/ivtv/ivtv-alsa.h
@@ -0,0 +1,70 @@
+/*
+ *  ALSA interface to ivtv PCM capture streams
+ *
+ *  Copyright (C) 2009,2012  Andy Walls <awalls@md.metrocast.net>
+ *  Copyright (C) 2009  Devin Heitmueller <dheitmueller@kernellabs.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+struct snd_card;
+
+struct snd_ivtv_card {
+	struct v4l2_device *v4l2_dev;
+	struct snd_card *sc;
+	unsigned int capture_transfer_done;
+	unsigned int hwptr_done_capture;
+	struct snd_pcm_substream *capture_pcm_substream;
+	spinlock_t slock;
+};
+
+extern int ivtv_alsa_debug;
+
+/*
+ * File operations that manipulate the encoder or video or audio subdevices
+ * need to be serialized.  Use the same lock we use for v4l2 file ops.
+ */
+static inline void snd_ivtv_lock(struct snd_ivtv_card *itvsc)
+{
+	struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
+	mutex_lock(&itv->serialize_lock);
+}
+
+static inline void snd_ivtv_unlock(struct snd_ivtv_card *itvsc)
+{
+	struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);
+	mutex_unlock(&itv->serialize_lock);
+}
+
+#define IVTV_ALSA_DBGFLG_WARN  (1 << 0)
+#define IVTV_ALSA_DBGFLG_INFO  (1 << 1)
+
+#define IVTV_ALSA_DEBUG(x, type, fmt, args...) \
+	do { \
+		if ((x) & ivtv_alsa_debug) \
+			pr_info("%s-alsa: " type ": " fmt, \
+				v4l2_dev->name , ## args); \
+	} while (0)
+
+#define IVTV_ALSA_DEBUG_WARN(fmt, args...) \
+	IVTV_ALSA_DEBUG(IVTV_ALSA_DBGFLG_WARN, "warning", fmt , ## args)
+
+#define IVTV_ALSA_DEBUG_INFO(fmt, args...) \
+	IVTV_ALSA_DEBUG(IVTV_ALSA_DBGFLG_INFO, "info", fmt , ## args)
+
+#define IVTV_ALSA_ERR(fmt, args...) \
+	pr_err("%s-alsa: " fmt, v4l2_dev->name , ## args)
+
+#define IVTV_ALSA_WARN(fmt, args...) \
+	pr_warn("%s-alsa: " fmt, v4l2_dev->name , ## args)
+
+#define IVTV_ALSA_INFO(fmt, args...) \
+	pr_info("%s-alsa: " fmt, v4l2_dev->name , ## args)