This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / sound / aoa / soundbus / i2sbus / i2sbus.h

diff --git a/sound/aoa/soundbus/i2sbus/i2sbus.h b/sound/aoa/soundbus/i2sbus/i2sbus.h
new file mode 100644 (file)
index 0000000..0c69d20
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus.h
@@ -0,0 +1,120 @@
+/*
+ * 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 <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+
+#include <sound/pcm.h>
+
+#include <asm/prom.h>
+#include <asm/pmac_feature.h>
+#include <asm/dbdma.h>
+
+#include "i2sbus-interface.h"
+#include "../soundbus.h"
+
+struct i2sbus_control {
+       struct list_head list;
+       struct macio_chip *macio;
+};
+
+#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;
+};
+
+enum {
+       aoa_resource_i2smmio = 0,
+       aoa_resource_txdbdma,
+       aoa_resource_rxdbdma,
+};
+
+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 */