1 files changed, 112 insertions, 0 deletions

diff --git a/sound/aoa/soundbus/i2sbus/i2sbus.h b/sound/aoa/soundbus/i2sbus/i2sbus.h
new file mode 100644
index 000000000000..cfa5162e3b0f
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus.h
@@ -0,0 +1,112 @@
+/*
+ * i2sbus driver -- private definitions
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * GPL v2, can be found in COPYING.
+ */
+#ifndef __I2SBUS_H
+#define __I2SBUS_H
+#include <asm/dbdma.h>
+#include <linux/interrupt.h>
+#include <sound/pcm.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+#include <asm/prom.h>
+#include "i2sbus-interface.h"
+#include "i2sbus-control.h"
+#include "../soundbus.h"
+
+struct i2sbus_control {
+        volatile struct i2s_control_regs __iomem *controlregs;
+        struct resource rsrc;
+        struct list_head list;
+};
+
+#define MAX_DBDMA_COMMANDS      32
+
+struct dbdma_command_mem {
+        dma_addr_t bus_addr;
+        dma_addr_t bus_cmd_start;
+        struct dbdma_cmd *cmds;
+        void *space;
+        int size;
+        u32 running:1;
+};
+
+struct pcm_info {
+        u32 created:1, /* has this direction been created with alsa? */
+            active:1;  /* is this stream active? */
+        /* runtime information */
+        struct snd_pcm_substream *substream;
+        int current_period;
+        u32 frame_count;
+        struct dbdma_command_mem dbdma_ring;
+        volatile struct dbdma_regs __iomem *dbdma;
+};
+
+struct i2sbus_dev {
+        struct soundbus_dev sound;
+        struct macio_dev *macio;
+        struct i2sbus_control *control;
+        volatile struct i2s_interface_regs __iomem *intfregs;
+
+        struct resource resources[3];
+        struct resource *allocated_resource[3];
+        int interrupts[3];
+        char rnames[3][32];
+
+        /* info about currently active substreams */
+        struct pcm_info out, in;
+        snd_pcm_format_t format;
+        unsigned int rate;
+
+        /* list for a single controller */
+        struct list_head item;
+        /* number of bus on controller */
+        int bus_number;
+        /* for use by control layer */
+        struct pmf_function *enable,
+                            *cell_enable,
+                            *cell_disable,
+                            *clock_enable,
+                            *clock_disable;
+
+        /* locks */
+        /* spinlock for low-level interrupt locking */
+        spinlock_t low_lock;
+        /* mutex for high-level consistency */
+        struct mutex lock;
+};
+
+#define soundbus_dev_to_i2sbus_dev(sdev) \
+                container_of(sdev, struct i2sbus_dev, sound)
+
+/* pcm specific functions */
+extern int
+i2sbus_attach_codec(struct soundbus_dev *dev, struct snd_card *card,
+                    struct codec_info *ci, void *data);
+extern void
+i2sbus_detach_codec(struct soundbus_dev *dev, void *data);
+extern irqreturn_t
+i2sbus_tx_intr(int irq, void *devid, struct pt_regs *regs);
+extern irqreturn_t
+i2sbus_rx_intr(int irq, void *devid, struct pt_regs *regs);
+
+/* control specific functions */
+extern int i2sbus_control_init(struct macio_dev* dev,
+                               struct i2sbus_control **c);
+extern void i2sbus_control_destroy(struct i2sbus_control *c);
+extern int i2sbus_control_add_dev(struct i2sbus_control *c,
+                                  struct i2sbus_dev *i2sdev);
+extern void i2sbus_control_remove_dev(struct i2sbus_control *c,
+                                      struct i2sbus_dev *i2sdev);
+extern int i2sbus_control_enable(struct i2sbus_control *c,
+                                 struct i2sbus_dev *i2sdev);
+extern int i2sbus_control_cell(struct i2sbus_control *c,
+                               struct i2sbus_dev *i2sdev,
+                               int enable);
+extern int i2sbus_control_clock(struct i2sbus_control *c,
+                                struct i2sbus_dev *i2sdev,
+                                int enable);
+#endif /* __I2SBUS_H */