[ALSA] snd-aoa: add snd-aoa

This large patch adds all of snd-aoa.
Consisting of many modules, it currently replaces snd-powermac
for all layout-id based machines and handles many more (for
example new powerbooks and powermacs with digital output that
previously couldn't be used at all).
It also has support for all layout-IDs that Apple has (judging
from their Info.plist file) but not all are tested.
The driver currently has 2 known regressions over snd-powermac:
 * it doesn't handle powermac 7,2 and 7,3
 * it doesn't have a DRC control on snapper-based machines
I will fix those during the 2.6.18 development cycle.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 43 insertions, 0 deletions

diff --git a/sound/aoa/soundbus/sysfs.c b/sound/aoa/soundbus/sysfs.c
new file mode 100644
index 000000000000..d31f8146952a
--- /dev/null
+++ b/sound/aoa/soundbus/sysfs.c
@@ -0,0 +1,43 @@
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/stat.h>
+/* FIX UP */
+#include "soundbus.h"
+
+#define soundbus_config_of_attr(field, format_string)                   \
+static ssize_t                                                          \
+field##_show (struct device *dev, struct device_attribute *attr,        \
+              char *buf)                                                \
+{                                                                       \
+        struct soundbus_dev *mdev = to_soundbus_device (dev);           \
+        return sprintf (buf, format_string, mdev->ofdev.node->field);   \
+}
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+                             char *buf)
+{
+        struct soundbus_dev *sdev = to_soundbus_device(dev);
+        struct of_device *of = &sdev->ofdev;
+        int length;
+
+        if (*sdev->modalias) {
+                strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1);
+                strcat(buf, "\n");
+                length = strlen(buf);
+        } else {
+                length = sprintf(buf, "of:N%sT%s\n",
+                                 of->node->name, of->node->type);
+        }
+
+        return length;
+}
+
+soundbus_config_of_attr (name, "%s\n");
+soundbus_config_of_attr (type, "%s\n");
+
+struct device_attribute soundbus_dev_attrs[] = {
+        __ATTR_RO(name),
+        __ATTR_RO(type),
+        __ATTR_RO(modalias),
+        __ATTR_NULL
+};