From 6ea7ec75d2fe0dd52bc3e86135412bfc92c3158c Mon Sep 17 00:00:00 2001
From: blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 3 Nov 2010 19:12:34 +0000
Subject: [ifxmips] * adds a rewrite of the tapi drivers + sip app. this is the
 result of lars' gsoc 2010 project, Thanks !

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23840 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 package/lqtapi/src/tapi/tapi-sysfs-port.c | 107 ++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 package/lqtapi/src/tapi/tapi-sysfs-port.c

(limited to 'package/lqtapi/src/tapi/tapi-sysfs-port.c')

diff --git a/package/lqtapi/src/tapi/tapi-sysfs-port.c b/package/lqtapi/src/tapi/tapi-sysfs-port.c
new file mode 100644
index 000000000..f6e5ee066
--- /dev/null
+++ b/package/lqtapi/src/tapi/tapi-sysfs-port.c
@@ -0,0 +1,107 @@
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/sysfs.h>
+
+#include <linux/err.h>
+#include <linux/tapi/tapi.h>
+
+struct tapi_sysfs_port {
+	struct tapi_device *tdev;
+	unsigned int id;
+	struct kobject kobj;
+};
+
+struct tapi_sysfs_entry {
+	ssize_t (*show)(struct tapi_device *, unsigned int port, char *);
+	ssize_t (*store)(struct tapi_device *, unsigned int port, const char *, size_t);
+	struct attribute attr;
+};
+
+static ssize_t tapi_port_store(struct kobject *kobj, struct attribute *attr,
+	const char *s, size_t len)
+{
+	struct tapi_sysfs_port *port = container_of(kobj, struct tapi_sysfs_port, kobj);
+	struct tapi_sysfs_entry *entry = container_of(attr, struct tapi_sysfs_entry,
+								attr);
+
+	if (!entry->store)
+		return -ENOSYS;
+
+	return entry->store(port->tdev, port->id, s, len);
+}
+
+static ssize_t tapi_port_show(struct kobject *kobj, struct attribute *attr,
+	char *s)
+{
+	return -ENOSYS;
+}
+
+#define TAPI_PORT_ATTR(_name, _mode, _show, _store) \
+	struct tapi_sysfs_entry tapi_port_ ## _name ## _attr = \
+		__ATTR(_name, _mode, _show, _store)
+
+static int tapi_port_store_ring(struct tapi_device *tdev, unsigned int port,
+	const char *s, size_t len)
+{
+	int ret;
+	unsigned long val;
+
+	ret = strict_strtoul(s, 10, &val);
+
+	if (ret)
+		return ret;
+
+	ret = tapi_port_set_ring(tdev, &tdev->ports[port], val);
+	if (ret)
+		return ret;
+	return len;
+}
+
+static TAPI_PORT_ATTR(ring, 0644, NULL, tapi_port_store_ring);
+
+static struct attribute *tapi_port_default_attrs[] = {
+	&tapi_port_ring_attr.attr,
+	NULL,
+};
+
+static void tapi_port_free(struct kobject *kobj)
+{
+	struct tapi_sysfs_port *port = container_of(kobj, struct tapi_sysfs_port, kobj);
+	kfree(port);
+}
+
+static struct sysfs_ops tapi_port_sysfs_ops = {
+	.show		= tapi_port_show,
+	.store		= tapi_port_store,
+};
+
+static struct kobj_type tapi_port_ktype = {
+	.release	= tapi_port_free,
+	.sysfs_ops	= &tapi_port_sysfs_ops,
+	.default_attrs	= tapi_port_default_attrs,
+};
+
+struct tapi_sysfs_port *tapi_port_alloc(struct tapi_device *tdev, unsigned int id)
+{
+	struct tapi_sysfs_port *port;
+	int ret;
+
+	port = kzalloc(sizeof(*port), GFP_KERNEL);
+	port->tdev = tdev;
+	port->id = id;
+
+	ret = kobject_init_and_add(&port->kobj, &tapi_port_ktype, &tdev->dev.kobj,
+		"port%d", id);
+	if (ret) {
+		kfree(port);
+		return ERR_PTR(ret);
+	}
+
+	return port;
+}
+
+void tapi_port_delete(struct tapi_sysfs_port *port)
+{
+	kobject_del(&port->kobj);
+	kobject_put(&port->kobj);
+}
-- 
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