[mirror_ubuntu-artful-kernel.git] / drivers / mailbox / mailbox-test.c

/*
 * Copyright (C) 2015 ST Microelectronics
 *
 * Author: Lee Jones <lee.jones@linaro.org>
 *
 * This program 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.
 */

#include <linux/debugfs.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/mailbox_client.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/uaccess.h>

#define MBOX_MAX_SIG_LEN	8
#define MBOX_MAX_MSG_LEN	128
#define MBOX_BYTES_PER_LINE	16
#define MBOX_HEXDUMP_LINE_LEN 	((MBOX_BYTES_PER_LINE * 4) + 2)
#define MBOX_HEXDUMP_MAX_LEN	(MBOX_HEXDUMP_LINE_LEN *		\
				 (MBOX_MAX_MSG_LEN / MBOX_BYTES_PER_LINE))

static struct dentry *root_debugfs_dir;

struct mbox_test_device {
	struct device		*dev;
	void __iomem		*mmio;
	struct mbox_chan	*tx_channel;
	struct mbox_chan	*rx_channel;
	char			*rx_buffer;
	char			*signal;
	char			*message;
	spinlock_t		lock;
};

static ssize_t mbox_test_signal_write(struct file *filp,
				       const char __user *userbuf,
				       size_t count, loff_t *ppos)
{
	struct mbox_test_device *tdev = filp->private_data;
	int ret;

	if (!tdev->tx_channel) {
		dev_err(tdev->dev, "Channel cannot do Tx\n");
		return -EINVAL;
	}

	if (count > MBOX_MAX_SIG_LEN) {
		dev_err(tdev->dev,
			"Signal length %d greater than max allowed %d\n",
			count, MBOX_MAX_SIG_LEN);
		return -EINVAL;
	}

	tdev->signal = kzalloc(MBOX_MAX_SIG_LEN, GFP_KERNEL);
	if (!tdev->signal)
		return -ENOMEM;

	ret = copy_from_user(tdev->signal, userbuf, count);
	if (ret) {
		kfree(tdev->signal);
		return -EFAULT;
	}

	return ret < 0 ? ret : count;
}

static const struct file_operations mbox_test_signal_ops = {
	.write	= mbox_test_signal_write,
	.open	= simple_open,
	.llseek	= generic_file_llseek,
};

static ssize_t mbox_test_message_write(struct file *filp,
				       const char __user *userbuf,
				       size_t count, loff_t *ppos)
{
	struct mbox_test_device *tdev = filp->private_data;
	void *data;
	int ret;

	if (!tdev->tx_channel) {
		dev_err(tdev->dev, "Channel cannot do Tx\n");
		return -EINVAL;
	}

	if (count > MBOX_MAX_MSG_LEN) {
		dev_err(tdev->dev,
			"Message length %d greater than max allowed %d\n",
			count, MBOX_MAX_MSG_LEN);
		return -EINVAL;
	}

	tdev->message = kzalloc(MBOX_MAX_MSG_LEN, GFP_KERNEL);
	if (!tdev->message)
		return -ENOMEM;

	ret = copy_from_user(tdev->message, userbuf, count);
	if (ret) {
		ret = -EFAULT;
		goto out;
	}

	/*
	 * A separate signal is only of use if there is
	 * MMIO to subsequently pass the message through
	 */
	if (tdev->mmio && tdev->signal) {
		print_hex_dump(KERN_INFO, "Client: Sending: Signal: ", DUMP_PREFIX_ADDRESS,
			       MBOX_BYTES_PER_LINE, 1, tdev->signal, MBOX_MAX_SIG_LEN, true);

		data = tdev->signal;
	} else
		data = tdev->message;

	print_hex_dump(KERN_INFO, "Client: Sending: Message: ", DUMP_PREFIX_ADDRESS,
		       MBOX_BYTES_PER_LINE, 1, tdev->message, MBOX_MAX_MSG_LEN, true);

	ret = mbox_send_message(tdev->tx_channel, data);
	if (ret < 0)
		dev_err(tdev->dev, "Failed to send message via mailbox\n");

out:
	kfree(tdev->signal);
	kfree(tdev->message);

	return ret < 0 ? ret : count;
}

static ssize_t mbox_test_message_read(struct file *filp, char __user *userbuf,
				      size_t count, loff_t *ppos)
{
	struct mbox_test_device *tdev = filp->private_data;
	unsigned long flags;
	char *touser, *ptr;
	int l = 0;
	int ret;

	touser = kzalloc(MBOX_HEXDUMP_MAX_LEN, GFP_KERNEL);
	if (!touser)
		return -ENOMEM;

	if (!tdev->rx_channel) {
		ret = snprintf(touser, 20, "<NO RX CAPABILITY>\n");
		ret = simple_read_from_buffer(userbuf, count, ppos,
					      touser, ret);
		goto out;
	}

	if (tdev->rx_buffer[0] == '\0') {
		ret = snprintf(touser, 9, "<EMPTY>\n");
		ret = simple_read_from_buffer(userbuf, count, ppos,
					      touser, ret);
		goto out;
	}

	spin_lock_irqsave(&tdev->lock, flags);

	ptr = tdev->rx_buffer;
	while (l < MBOX_HEXDUMP_MAX_LEN) {
		hex_dump_to_buffer(ptr,
				   MBOX_BYTES_PER_LINE,
				   MBOX_BYTES_PER_LINE, 1, touser + l,
				   MBOX_HEXDUMP_LINE_LEN, true);

		ptr += MBOX_BYTES_PER_LINE;
		l += MBOX_HEXDUMP_LINE_LEN;
		*(touser + (l - 1)) = '\n';
	}
	*(touser + l) = '\0';

	memset(tdev->rx_buffer, 0, MBOX_MAX_MSG_LEN);

	spin_unlock_irqrestore(&tdev->lock, flags);

	ret = simple_read_from_buffer(userbuf, count, ppos, touser, MBOX_HEXDUMP_MAX_LEN);
out:
	kfree(touser);
	return ret;
}

static const struct file_operations mbox_test_message_ops = {
	.write	= mbox_test_message_write,
	.read	= mbox_test_message_read,
	.open	= simple_open,
	.llseek	= generic_file_llseek,
};

static int mbox_test_add_debugfs(struct platform_device *pdev,
				 struct mbox_test_device *tdev)
{
	if (!debugfs_initialized())
		return 0;

	root_debugfs_dir = debugfs_create_dir("mailbox", NULL);
	if (!root_debugfs_dir) {
		dev_err(&pdev->dev, "Failed to create Mailbox debugfs\n");
		return -EINVAL;
	}

	debugfs_create_file("message", 0600, root_debugfs_dir,
			    tdev, &mbox_test_message_ops);

	debugfs_create_file("signal", 0200, root_debugfs_dir,
			    tdev, &mbox_test_signal_ops);

	return 0;
}

static void mbox_test_receive_message(struct mbox_client *client, void *message)
{
	struct mbox_test_device *tdev = dev_get_drvdata(client->dev);
	unsigned long flags;

	spin_lock_irqsave(&tdev->lock, flags);
	if (tdev->mmio) {
		print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
			       DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
			       tdev->mmio, MBOX_MAX_MSG_LEN, true);
		memcpy(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);

	} else if (message) {
		print_hex_dump(KERN_INFO, "Client: Received [API]: ",
			       DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
			       message, MBOX_MAX_MSG_LEN, true);
		memcpy(tdev->rx_buffer, message, MBOX_MAX_MSG_LEN);
	}
	spin_unlock_irqrestore(&tdev->lock, flags);
}

static void mbox_test_prepare_message(struct mbox_client *client, void *message)
{
	struct mbox_test_device *tdev = dev_get_drvdata(client->dev);

	if (tdev->mmio) {
		if (tdev->signal)
			memcpy(tdev->mmio, tdev->message, MBOX_MAX_MSG_LEN);
		else
			memcpy(tdev->mmio, message, MBOX_MAX_MSG_LEN);
	}
}

static void mbox_test_message_sent(struct mbox_client *client,
				   void *message, int r)
{
	if (r)
		dev_warn(client->dev,
			 "Client: Message could not be sent: %d\n", r);
	else
		dev_info(client->dev,
			 "Client: Message sent\n");
}

static struct mbox_chan *
mbox_test_request_channel(struct platform_device *pdev, const char *name)
{
	struct mbox_client *client;
	struct mbox_chan *channel;

	client = devm_kzalloc(&pdev->dev, sizeof(*client), GFP_KERNEL);
	if (!client)
		return ERR_PTR(-ENOMEM);

	client->dev		= &pdev->dev;
	client->rx_callback	= mbox_test_receive_message;
	client->tx_prepare	= mbox_test_prepare_message;
	client->tx_done		= mbox_test_message_sent;
	client->tx_block	= true;
	client->knows_txdone	= false;
	client->tx_tout		= 500;

	channel = mbox_request_channel_byname(client, name);
	if (IS_ERR(channel)) {
		dev_warn(&pdev->dev, "Failed to request %s channel\n", name);
		return NULL;
	}

	return channel;
}

static int mbox_test_probe(struct platform_device *pdev)
{
	struct mbox_test_device *tdev;
	struct resource *res;
	int ret;

	tdev = devm_kzalloc(&pdev->dev, sizeof(*tdev), GFP_KERNEL);
	if (!tdev)
		return -ENOMEM;

	/* It's okay for MMIO to be NULL */
	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	tdev->mmio = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(tdev->mmio))
		tdev->mmio = NULL;

	tdev->tx_channel = mbox_test_request_channel(pdev, "tx");
	tdev->rx_channel = mbox_test_request_channel(pdev, "rx");

	if (!tdev->tx_channel && !tdev->tx_channel)
		return -EPROBE_DEFER;

	tdev->dev = &pdev->dev;
	platform_set_drvdata(pdev, tdev);

	spin_lock_init(&tdev->lock);

	if (tdev->rx_channel) {
		tdev->rx_buffer = devm_kzalloc(&pdev->dev,
					       MBOX_MAX_MSG_LEN, GFP_KERNEL);
		if (!tdev->rx_buffer)
			return -ENOMEM;
	}

	ret = mbox_test_add_debugfs(pdev, tdev);
	if (ret)
		return ret;

	dev_info(&pdev->dev, "Successfully registered\n");

	return 0;
}

static int mbox_test_remove(struct platform_device *pdev)
{
	struct mbox_test_device *tdev = platform_get_drvdata(pdev);

	debugfs_remove_recursive(root_debugfs_dir);

	if (tdev->tx_channel)
		mbox_free_channel(tdev->tx_channel);
	if (tdev->rx_channel)
		mbox_free_channel(tdev->rx_channel);

	return 0;
}

static const struct of_device_id mbox_test_match[] = {
	{ .compatible = "mailbox_test" },
	{},
};

static struct platform_driver mbox_test_driver = {
	.driver = {
		.name = "mailbox_sti_test",
		.of_match_table = mbox_test_match,
	},
	.probe  = mbox_test_probe,
	.remove = mbox_test_remove,
};
module_platform_driver(mbox_test_driver);

MODULE_DESCRIPTION("Generic Mailbox Testing Facility");
MODULE_AUTHOR("Lee Jones <lee.jones@linaro.org");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
8ea4484d LJ	1	/*
	2	* Copyright (C) 2015 ST Microelectronics
	3	*
	4	* Author: Lee Jones <lee.jones@linaro.org>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
	12	#include <linux/debugfs.h>
	13	#include <linux/err.h>
	14	#include <linux/kernel.h>
	15	#include <linux/mailbox_client.h>
	16	#include <linux/module.h>
	17	#include <linux/of.h>
	18	#include <linux/platform_device.h>
	19	#include <linux/slab.h>
	20	#include <linux/uaccess.h>
	21
	22	#define MBOX_MAX_SIG_LEN 8
	23	#define MBOX_MAX_MSG_LEN 128
	24	#define MBOX_BYTES_PER_LINE 16
	25	#define MBOX_HEXDUMP_LINE_LEN ((MBOX_BYTES_PER_LINE * 4) + 2)
	26	#define MBOX_HEXDUMP_MAX_LEN (MBOX_HEXDUMP_LINE_LEN * \
	27	(MBOX_MAX_MSG_LEN / MBOX_BYTES_PER_LINE))
	28
	29	static struct dentry *root_debugfs_dir;
	30
	31	struct mbox_test_device {
	32	struct device *dev;
	33	void __iomem *mmio;
	34	struct mbox_chan *tx_channel;
	35	struct mbox_chan *rx_channel;
	36	char *rx_buffer;
	37	char *signal;
	38	char *message;
	39	spinlock_t lock;
	40	};
	41
	42	static ssize_t mbox_test_signal_write(struct file *filp,
	43	const char __user *userbuf,
	44	size_t count, loff_t *ppos)
	45	{
	46	struct mbox_test_device *tdev = filp->private_data;
	47	int ret;
	48
	49	if (!tdev->tx_channel) {
	50	dev_err(tdev->dev, "Channel cannot do Tx\n");
	51	return -EINVAL;
	52	}
	53
	54	if (count > MBOX_MAX_SIG_LEN) {
	55	dev_err(tdev->dev,
	56	"Signal length %d greater than max allowed %d\n",
	57	count, MBOX_MAX_SIG_LEN);
	58	return -EINVAL;
	59	}
	60
	61	tdev->signal = kzalloc(MBOX_MAX_SIG_LEN, GFP_KERNEL);
	62	if (!tdev->signal)
	63	return -ENOMEM;
	64
65	ret = copy_from_user(tdev->signal, userbuf, count);
66	if (ret) {
67	kfree(tdev->signal);
68	return -EFAULT;
69	}
70
71	return ret < 0 ? ret : count;
72	}
73
74	static const struct file_operations mbox_test_signal_ops = {
75	.write = mbox_test_signal_write,
76	.open = simple_open,
77	.llseek = generic_file_llseek,
78	};
79
80	static ssize_t mbox_test_message_write(struct file *filp,
81	const char __user *userbuf,
82	size_t count, loff_t *ppos)
83	{
84	struct mbox_test_device *tdev = filp->private_data;
85	void *data;
86	int ret;
87
88	if (!tdev->tx_channel) {
89	dev_err(tdev->dev, "Channel cannot do Tx\n");
90	return -EINVAL;
91	}
92
93	if (count > MBOX_MAX_MSG_LEN) {
94	dev_err(tdev->dev,
95	"Message length %d greater than max allowed %d\n",
96	count, MBOX_MAX_MSG_LEN);
97	return -EINVAL;
98	}
99
100	tdev->message = kzalloc(MBOX_MAX_MSG_LEN, GFP_KERNEL);
101	if (!tdev->message)
102	return -ENOMEM;
103
104	ret = copy_from_user(tdev->message, userbuf, count);
105	if (ret) {
106	ret = -EFAULT;
107	goto out;
108	}
109
110	/*
111	* A separate signal is only of use if there is
112	* MMIO to subsequently pass the message through
113	*/
114	if (tdev->mmio && tdev->signal) {
115	print_hex_dump(KERN_INFO, "Client: Sending: Signal: ", DUMP_PREFIX_ADDRESS,
116	MBOX_BYTES_PER_LINE, 1, tdev->signal, MBOX_MAX_SIG_LEN, true);
117
118	data = tdev->signal;
119	} else
120	data = tdev->message;
121
122	print_hex_dump(KERN_INFO, "Client: Sending: Message: ", DUMP_PREFIX_ADDRESS,
123	MBOX_BYTES_PER_LINE, 1, tdev->message, MBOX_MAX_MSG_LEN, true);
124
125	ret = mbox_send_message(tdev->tx_channel, data);
126	if (ret < 0)
127	dev_err(tdev->dev, "Failed to send message via mailbox\n");
128
129	out:
130	kfree(tdev->signal);
131	kfree(tdev->message);
132
133	return ret < 0 ? ret : count;
134	}
135
136	static ssize_t mbox_test_message_read(struct file filp, char __user userbuf,
137	size_t count, loff_t *ppos)
138	{
139	struct mbox_test_device *tdev = filp->private_data;
140	unsigned long flags;
141	char touser, ptr;
142	int l = 0;
143	int ret;
144
145	touser = kzalloc(MBOX_HEXDUMP_MAX_LEN, GFP_KERNEL);
146	if (!touser)
147	return -ENOMEM;
148
149	if (!tdev->rx_channel) {
150	ret = snprintf(touser, 20, "<NO RX CAPABILITY>\n");
151	ret = simple_read_from_buffer(userbuf, count, ppos,
152	touser, ret);
153	goto out;
154	}
155
156	if (tdev->rx_buffer[0] == '\0') {
157	ret = snprintf(touser, 9, "<EMPTY>\n");
158	ret = simple_read_from_buffer(userbuf, count, ppos,
159	touser, ret);
160	goto out;
161	}
162
163	spin_lock_irqsave(&tdev->lock, flags);
164
165	ptr = tdev->rx_buffer;
166	while (l < MBOX_HEXDUMP_MAX_LEN) {
167	hex_dump_to_buffer(ptr,
168	MBOX_BYTES_PER_LINE,
169	MBOX_BYTES_PER_LINE, 1, touser + l,
170	MBOX_HEXDUMP_LINE_LEN, true);
171
172	ptr += MBOX_BYTES_PER_LINE;
173	l += MBOX_HEXDUMP_LINE_LEN;
174	*(touser + (l - 1)) = '\n';
175	}
176	*(touser + l) = '\0';
177
178	memset(tdev->rx_buffer, 0, MBOX_MAX_MSG_LEN);
179
180	spin_unlock_irqrestore(&tdev->lock, flags);
181
182	ret = simple_read_from_buffer(userbuf, count, ppos, touser, MBOX_HEXDUMP_MAX_LEN);
183	out:
184	kfree(touser);
185	return ret;
186	}
187
188	static const struct file_operations mbox_test_message_ops = {
189	.write = mbox_test_message_write,
190	.read = mbox_test_message_read,
191	.open = simple_open,
192	.llseek = generic_file_llseek,
193	};
194
195	static int mbox_test_add_debugfs(struct platform_device *pdev,
196	struct mbox_test_device *tdev)
197	{
198	if (!debugfs_initialized())
199	return 0;
200
201	root_debugfs_dir = debugfs_create_dir("mailbox", NULL);
202	if (!root_debugfs_dir) {
203	dev_err(&pdev->dev, "Failed to create Mailbox debugfs\n");
204	return -EINVAL;
205	}
206
207	debugfs_create_file("message", 0600, root_debugfs_dir,
208	tdev, &mbox_test_message_ops);
209
210	debugfs_create_file("signal", 0200, root_debugfs_dir,
211	tdev, &mbox_test_signal_ops);
212
213	return 0;
214	}
215
216	static void mbox_test_receive_message(struct mbox_client client, void message)
217	{
218	struct mbox_test_device *tdev = dev_get_drvdata(client->dev);
219	unsigned long flags;
220
221	spin_lock_irqsave(&tdev->lock, flags);
222	if (tdev->mmio) {
223	print_hex_dump(KERN_INFO, "Client: Received [MMIO]: ",
224	DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
225	tdev->mmio, MBOX_MAX_MSG_LEN, true);
226	memcpy(tdev->rx_buffer, tdev->mmio, MBOX_MAX_MSG_LEN);
227
228	} else if (message) {
229	print_hex_dump(KERN_INFO, "Client: Received [API]: ",
230	DUMP_PREFIX_ADDRESS, MBOX_BYTES_PER_LINE, 1,
231	message, MBOX_MAX_MSG_LEN, true);
232	memcpy(tdev->rx_buffer, message, MBOX_MAX_MSG_LEN);
233	}
234	spin_unlock_irqrestore(&tdev->lock, flags);
235	}
236
237	static void mbox_test_prepare_message(struct mbox_client client, void message)
238	{
239	struct mbox_test_device *tdev = dev_get_drvdata(client->dev);
240
241	if (tdev->mmio) {
242	if (tdev->signal)
243	memcpy(tdev->mmio, tdev->message, MBOX_MAX_MSG_LEN);
244	else
245	memcpy(tdev->mmio, message, MBOX_MAX_MSG_LEN);
246	}
247	}
248
249	static void mbox_test_message_sent(struct mbox_client *client,
250	void *message, int r)
251	{
252	if (r)
253	dev_warn(client->dev,
254	"Client: Message could not be sent: %d\n", r);
255	else
256	dev_info(client->dev,
257	"Client: Message sent\n");
258	}
259
260	static struct mbox_chan *
261	mbox_test_request_channel(struct platform_device pdev, const char name)
262	{
263	struct mbox_client *client;
264	struct mbox_chan *channel;
265
266	client = devm_kzalloc(&pdev->dev, sizeof(*client), GFP_KERNEL);
267	if (!client)
268	return ERR_PTR(-ENOMEM);
269
270	client->dev = &pdev->dev;
271	client->rx_callback = mbox_test_receive_message;
272	client->tx_prepare = mbox_test_prepare_message;
273	client->tx_done = mbox_test_message_sent;
274	client->tx_block = true;
275	client->knows_txdone = false;
276	client->tx_tout = 500;
277
278	channel = mbox_request_channel_byname(client, name);
279	if (IS_ERR(channel)) {
280	dev_warn(&pdev->dev, "Failed to request %s channel\n", name);
281	return NULL;
282	}
283
284	return channel;
285	}
286
287	static int mbox_test_probe(struct platform_device *pdev)
288	{
289	struct mbox_test_device *tdev;
290	struct resource *res;
291	int ret;
292
293	tdev = devm_kzalloc(&pdev->dev, sizeof(*tdev), GFP_KERNEL);
294	if (!tdev)
295	return -ENOMEM;
296
297	/* It's okay for MMIO to be NULL */
298	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
299	tdev->mmio = devm_ioremap_resource(&pdev->dev, res);
300	if (IS_ERR(tdev->mmio))
301	tdev->mmio = NULL;
302
303	tdev->tx_channel = mbox_test_request_channel(pdev, "tx");
304	tdev->rx_channel = mbox_test_request_channel(pdev, "rx");
305
306	if (!tdev->tx_channel && !tdev->tx_channel)
307	return -EPROBE_DEFER;
308
309	tdev->dev = &pdev->dev;
310	platform_set_drvdata(pdev, tdev);
311
312	spin_lock_init(&tdev->lock);
313
314	if (tdev->rx_channel) {
315	tdev->rx_buffer = devm_kzalloc(&pdev->dev,
316	MBOX_MAX_MSG_LEN, GFP_KERNEL);
317	if (!tdev->rx_buffer)
318	return -ENOMEM;
319	}
320
321	ret = mbox_test_add_debugfs(pdev, tdev);
322	if (ret)
323	return ret;
324
325	dev_info(&pdev->dev, "Successfully registered\n");
326
327	return 0;
328	}
329
330	static int mbox_test_remove(struct platform_device *pdev)
331	{
332	struct mbox_test_device *tdev = platform_get_drvdata(pdev);
333
334	debugfs_remove_recursive(root_debugfs_dir);
335
336	if (tdev->tx_channel)
337	mbox_free_channel(tdev->tx_channel);
338	if (tdev->rx_channel)
339	mbox_free_channel(tdev->rx_channel);
340
341	return 0;
342	}
343
344	static const struct of_device_id mbox_test_match[] = {
345	{ .compatible = "mailbox_test" },
346	{},
347	};
348
349	static struct platform_driver mbox_test_driver = {
350	.driver = {
351	.name = "mailbox_sti_test",
352	.of_match_table = mbox_test_match,
353	},
354	.probe = mbox_test_probe,
355	.remove = mbox_test_remove,
356	};
357	module_platform_driver(mbox_test_driver);
358
359	MODULE_DESCRIPTION("Generic Mailbox Testing Facility");
360	MODULE_AUTHOR("Lee Jones <lee.jones@linaro.org");
361	MODULE_LICENSE("GPL v2");