Merge greybus driver tree into 4.8-rc6

This pulls the external greybus driver tree into 4.8-rc6 as it should be part of the main kernel tree and not live outside in some lonely github repo, never to be reunited with it's true love... Signed-off-by: Greg Kroah-Hartman <[email protected]>
lucamilanesio · Sep 19, 2016 · f44dd18 · f44dd18
2 parents 9395452 + 7398a66
commit f44dd18
Show file tree

Hide file tree

Showing 148 changed files with 45,533 additions and 0 deletions.
diff --git a/drivers/staging/greybus/.gitignore b/drivers/staging/greybus/.gitignore
@@ -0,0 +1,15 @@
+.*
+*.cmd
+*.ko
+*.mod.c
+modules.order
+Module.symvers
+*.o
+*.o.*
+*.swp
+.tmp_versions
+tags
+cscope.*
+ncscope.*
+*.patch
+tools/loopback_test
diff --git a/drivers/staging/greybus/Documentation/es1_ap_desc.c b/drivers/staging/greybus/Documentation/es1_ap_desc.c
@@ -0,0 +1,70 @@
+/* ES1 AP Bridge Chip USB descriptor definitions */
+
+static const u8 es1_dev_descriptor[] = {
+	0x12,		/* __u8   bLength */
+	0x01,		/* __u8   bDescriptorType; Device */
+	0x00, 0x02	/* __le16 bcdUSB v2.0 */
+	0x00,		/* __u8   bDeviceClass */
+	0x00,		/* __u8   bDeviceClass */
+	0x00,		/* __u8   bDeviceSubClass; */
+	0x00,		/* __u8   bDeviceProtocol; */
+	0x40,		/* __u8   bMaxPacketSize0; 2^64 = 512 Bytes */
+
+	0xff, 0xff,	/* __le16 idVendor; 0xffff  made up for now */
+	0x01, 0x00,	/* __le16 idProduct; 0x0001  made up for now */
+	0x01, 0x00,	/* __le16 bcdDevice; ES1 */
+
+	0x03,		/* __u8  iManufacturer; */
+	0x02,		/* __u8  iProduct; */
+	0x01,		/* __u8  iSerialNumber; */
+	0x01		/* __u8  bNumConfigurations; */
+};
+
+static const u8 es1_config_descriptor[] = {
+	/* one configuration */
+	0x09,		/*  __u8   bLength; */
+	0x02,		/*  __u8   bDescriptorType; Configuration */
+	0x19, 0x00,	/*  __le16 wTotalLength; */
+	0x01,		/*  __u8   bNumInterfaces; (1) */
+	0x01,		/*  __u8   bConfigurationValue; */
+	0x00,		/*  __u8   iConfiguration; */
+	0xc0,		/*  __u8   bmAttributes;
+				 Bit 7: must be set,
+				     6: Self-powered,
+				     5: Remote wakeup,
+				     4..0: resvd */
+	0x00,		/*  __u8  MaxPower; */
+
+	/* one interface */
+	0x09,		/*  __u8  if_bLength; */
+	0x04,		/*  __u8  if_bDescriptorType; Interface */
+	0x00,		/*  __u8  if_bInterfaceNumber; */
+	0x00,		/*  __u8  if_bAlternateSetting; */
+	0x03,		/*  __u8  if_bNumEndpoints; */
+	0xff,		/*  __u8  if_bInterfaceClass; Vendor-specific */
+	0xff,		/*  __u8  if_bInterfaceSubClass; Vendor-specific */
+	0xff,		/*  __u8  if_bInterfaceProtocol; Vendor-specific */
+	0x00,		/*  __u8  if_iInterface; */
+
+	/* three endpoints */
+	0x07,		/*  __u8   ep_bLength; */
+	0x05,		/*  __u8   ep_bDescriptorType; Endpoint */
+	0x81,		/*  __u8   ep_bEndpointAddress; IN Endpoint 1 */
+	0x03,		/*  __u8   ep_bmAttributes; Interrupt */
+	0x00, 0x04,	/*  __le16 ep_wMaxPacketSize; 1024 */
+	0x40,		/*  __u8   ep_bInterval; 64ms */
+
+	0x07,		/*  __u8   ep_bLength; */
+	0x05,		/*  __u8   ep_bDescriptorType; Endpoint */
+	0x82,		/*  __u8   ep_bEndpointAddress; IN Endpoint 2 */
+	0x02,		/*  __u8   ep_bmAttributes; Bulk */
+	0x00, 0x04,	/*  __le16 ep_wMaxPacketSize; 1024 */
+	0x40		/*  __u8   ep_bInterval; */
+
+	0x07,		/*  __u8   ep_bLength; */
+	0x05,		/*  __u8   ep_bDescriptorType; Endpoint */
+	0x02,		/*  __u8   ep_bEndpointAddress; Out Endpoint 2 */
+	0x02,		/*  __u8   ep_bmAttributes; Bulk */
+	0x00, 0x04,	/*  __le16 ep_wMaxPacketSize; 1024 */
+	0x40		/*  __u8   ep_bInterval; */
+};
diff --git a/drivers/staging/greybus/Documentation/firmware/authenticate.c b/drivers/staging/greybus/Documentation/firmware/authenticate.c
@@ -0,0 +1,139 @@
+/*
+ * Sample code to test CAP protocol
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2016 Google Inc. All rights reserved.
+ * Copyright(c) 2016 Linaro Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License version 2 for more details.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2016 Google Inc. All rights reserved.
+ * Copyright(c) 2016 Linaro Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name of Google Inc. or Linaro Ltd. nor the names of
+ *    its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR
+ * LINARO LTD. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "../../greybus_authentication.h"
+
+struct cap_ioc_get_endpoint_uid uid;
+struct cap_ioc_get_ims_certificate cert = {
+	.certificate_class = 0,
+	.certificate_id = 0,
+};
+
+struct cap_ioc_authenticate authenticate = {
+	.auth_type = 0,
+	.challenge = {0},
+};
+
+int main(int argc, char *argv[])
+{
+	unsigned int timeout = 10000;
+	char *capdev;
+	int fd, ret;
+
+	/* Make sure arguments are correct */
+	if (argc != 2) {
+		printf("\nUsage: ./firmware <Path of the gb-cap-X dev>\n");
+		return 0;
+	}
+
+	capdev = argv[1];
+
+	printf("Opening %s authentication device\n", capdev);
+
+	fd = open(capdev, O_RDWR);
+	if (fd < 0) {
+		printf("Failed to open: %s\n", capdev);
+		return -1;
+	}
+
+	/* Get UID */
+	printf("Get UID\n");
+
+	ret = ioctl(fd, CAP_IOC_GET_ENDPOINT_UID, &uid);
+	if (ret < 0) {
+		printf("Failed to get UID: %s (%d)\n", capdev, ret);
+		ret = -1;
+		goto close_fd;
+	}
+
+	printf("UID received: 0x%llx\n", *(long long unsigned int *)(uid.uid));
+
+	/* Get certificate */
+	printf("Get IMS certificate\n");
+
+	ret = ioctl(fd, CAP_IOC_GET_IMS_CERTIFICATE, &cert);
+	if (ret < 0) {
+		printf("Failed to get IMS certificate: %s (%d)\n", capdev, ret);
+		ret = -1;
+		goto close_fd;
+	}
+
+	printf("IMS Certificate size: %d\n", cert.cert_size);
+
+	/* Authenticate */
+	printf("Authenticate module\n");
+
+	memcpy(authenticate.uid, uid.uid, 8);
+
+	ret = ioctl(fd, CAP_IOC_AUTHENTICATE, &authenticate);
+	if (ret < 0) {
+		printf("Failed to authenticate module: %s (%d)\n", capdev, ret);
+		ret = -1;
+		goto close_fd;
+	}
+
+	printf("Authenticated, result (%02x), sig-size (%02x)\n",
+		authenticate.result_code, authenticate.signature_size);
+
+close_fd:
+	close(fd);
+
+	return ret;
+}