[ubicom32]: move new files out from platform support patch

[openwrt/svn-archive/archive.git] / target / linux / ubicom32 / files / sound / ubicom32 / ubi32.h

diff --git a/target/linux/ubicom32/files/sound/ubicom32/ubi32.h b/target/linux/ubicom32/files/sound/ubicom32/ubi32.h
new file mode 100644 (file)
index 0000000..f43a215
--- /dev/null
+++ b/target/linux/ubicom32/files/sound/ubicom32/ubi32.h
@@ -0,0 +1,102 @@
+/*
+ * sound/ubicom32/ubi32.h
+ *     Common header file for all ubi32- sound drivers
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port 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.
+ *
+ * The Ubicom32 Linux Kernel Port 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Ubicom32 Linux Kernel Port.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _UBI32_H
+#define _UBI32_H
+
+#define SND_UBI32_DEBUG 0 // Debug flag
+
+#include <linux/platform_device.h>
+#include <asm/devtree.h>
+#include <asm/audio.h>
+#include <asm/ubi32-pcm.h>
+
+struct ubi32_snd_priv;
+
+typedef int (*set_channels_t)(struct ubi32_snd_priv *priv, int channels);
+typedef int (*set_rate_t)(struct ubi32_snd_priv *priv, int rate);
+
+struct ubi32_snd_priv {
+       /*
+        * Any variables that are needed locally here but NOT in
+        * the VP itself should go in here.
+        */
+       struct snd_card *card;
+       struct snd_pcm *pcm;
+
+       /*
+        * capture (1) or playback (0)
+        */
+       int is_capture;
+       /*
+        * DAC parameters.  These are the parameters for the specific
+        * DAC we are driving.  The I2S component can run at a range
+        * of frequencies, but the DAC may be limited.  We may want
+        * to make this an array of some sort in the future?
+        *
+        * min/max_sample_rate if set to 0 are ignored.
+        */
+       int max_sample_rate;
+       int min_sample_rate;
+
+       /*
+        * The size a period (group) of audio samples.  The VP does
+        * not need to know this; each DMA transfer is made to be
+        * one period.
+        */
+       u32_t period_size;
+
+       spinlock_t ubi32_lock;
+
+       struct audio_regs *ar;
+       struct audio_dev_regs *adr;
+       u32 irq_idx;
+       u8 tx_irq;
+       u8 rx_irq;
+
+       void *client;
+
+       /*
+        * Operations which the base DAC driver can implement
+        */
+       set_channels_t set_channels;
+       set_rate_t set_rate;
+
+       /*
+        * platform data
+        */
+       struct ubi32pcm_platform_data *pdata;
+
+       /*
+        * Private driver data (used for DAC driver control, etc)
+        */
+       void *drvdata;
+};
+
+#define snd_ubi32_priv_get_drv(priv) ((priv)->drvdata)
+#define snd_ubi32_priv_set_drv(priv, data) (((priv)->drvdata) = (void *)(data))
+
+extern int snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev);
+extern void snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv);
+
+#endif