msm: hsic_sysmon: Add system monitor HSIC bridge
This driver is used to communicate with the system monitor
interface of an external modem device connected via HSIC. A simple
API consisting of open/close/read/write functions is provided to
send and receive data to and from a remote system monitor.
CRs-fixed: 349727
Change-Id: I84a81ec1cdb3dae705200907f8805da70afe58ee
Signed-off-by: Jack Pham <jackp@codeaurora.org>
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index 33c84a6..4ea24a4 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -2275,4 +2275,21 @@
want to dump the L1 and L2 caches on panic before any flush occurs.
If unsure, say N
+config MSM_HSIC_SYSMON
+ tristate "MSM HSIC system monitor driver"
+ depends on USB
+ help
+ Add support for bridging with the system monitor interface of MDM
+ over HSIC. This driver allows the local system monitor to
+ communicate with the remote system monitor interface.
+
+config MSM_HSIC_SYSMON_TEST
+ tristate "MSM HSIC system monitor bridge test"
+ depends on USB && MSM_HSIC_SYSMON && DEBUG_FS
+ help
+ Enable the test hook for the Qualcomm system monitor HSIC driver.
+ This will create a debugfs file entry named "hsic_sysmon_test" which
+ can be read and written to send character data to the sysmon port of
+ the modem over USB.
+
endif
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index 14bae2d..3ef61f4 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -345,3 +345,6 @@
obj-$(CONFIG_MSM_RTB) += msm_rtb.o
obj-$(CONFIG_MSM_CACHE_ERP) += cache_erp.o
obj-$(CONFIG_MSM_CACHE_DUMP) += msm_cache_dump.o
+
+obj-$(CONFIG_MSM_HSIC_SYSMON) += hsic_sysmon.o
+obj-$(CONFIG_MSM_HSIC_SYSMON_TEST) += hsic_sysmon_test.o
diff --git a/arch/arm/mach-msm/hsic_sysmon.c b/arch/arm/mach-msm/hsic_sysmon.c
new file mode 100644
index 0000000..2dedbac
--- /dev/null
+++ b/arch/arm/mach-msm/hsic_sysmon.c
@@ -0,0 +1,449 @@
+/* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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 for more details.
+ */
+
+/* add additional information to our printk's */
+#define pr_fmt(fmt) "%s: " fmt "\n", __func__
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kref.h>
+#include <linux/platform_device.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/debugfs.h>
+
+#include "hsic_sysmon.h"
+#include "sysmon.h"
+
+#define DRIVER_DESC "HSIC System monitor driver"
+
+enum hsic_sysmon_op {
+ HSIC_SYSMON_OP_READ = 0,
+ HSIC_SYSMON_OP_WRITE,
+ NUM_OPS
+};
+
+struct hsic_sysmon {
+ struct usb_device *udev;
+ struct usb_interface *ifc;
+ __u8 in_epaddr;
+ __u8 out_epaddr;
+ unsigned int pipe[NUM_OPS];
+ struct kref kref;
+ struct platform_device pdev;
+ int id;
+
+ /* debugging counters */
+ atomic_t dbg_bytecnt[NUM_OPS];
+ atomic_t dbg_pending[NUM_OPS];
+};
+static struct hsic_sysmon *hsic_sysmon_devices[NUM_HSIC_SYSMON_DEVS];
+
+static void hsic_sysmon_delete(struct kref *kref)
+{
+ struct hsic_sysmon *hs = container_of(kref, struct hsic_sysmon, kref);
+
+ usb_put_dev(hs->udev);
+ hsic_sysmon_devices[hs->id] = NULL;
+ kfree(hs);
+}
+
+/**
+ * hsic_sysmon_open() - Opens the system monitor bridge.
+ * @id: the HSIC system monitor device to open
+ *
+ * This should only be called after the platform_device "sys_mon" with id
+ * SYSMON_SS_EXT_MODEM has been added. The simplest way to do that is to
+ * register a platform_driver and its probe will be called when the HSIC
+ * device is ready.
+ */
+int hsic_sysmon_open(enum hsic_sysmon_device_id id)
+{
+ struct hsic_sysmon *hs;
+
+ if (id >= NUM_HSIC_SYSMON_DEVS) {
+ pr_err("invalid dev id(%d)", id);
+ return -ENODEV;
+ }
+
+ hs = hsic_sysmon_devices[id];
+ if (!hs) {
+ pr_err("dev is null");
+ return -ENODEV;
+ }
+
+ kref_get(&hs->kref);
+
+ return 0;
+}
+EXPORT_SYMBOL(hsic_sysmon_open);
+
+/**
+ * hsic_sysmon_close() - Closes the system monitor bridge.
+ * @id: the HSIC system monitor device to close
+ */
+void hsic_sysmon_close(enum hsic_sysmon_device_id id)
+{
+ struct hsic_sysmon *hs;
+
+ if (id >= NUM_HSIC_SYSMON_DEVS) {
+ pr_err("invalid dev id(%d)", id);
+ return;
+ }
+
+ hs = hsic_sysmon_devices[id];
+ kref_put(&hs->kref, hsic_sysmon_delete);
+}
+EXPORT_SYMBOL(hsic_sysmon_close);
+
+/**
+ * hsic_sysmon_readwrite() - Common function to send read/write over HSIC
+ */
+static int hsic_sysmon_readwrite(enum hsic_sysmon_device_id id, void *data,
+ size_t len, size_t *actual_len, int timeout,
+ enum hsic_sysmon_op op)
+{
+ struct hsic_sysmon *hs;
+ int ret;
+ const char *opstr = (op == HSIC_SYSMON_OP_READ) ?
+ "read" : "write";
+
+ pr_debug("%s: id:%d, data len:%d, timeout:%d", opstr, id, len, timeout);
+
+ if (id >= NUM_HSIC_SYSMON_DEVS) {
+ pr_err("invalid dev id(%d)", id);
+ return -ENODEV;
+ }
+
+ if (!len) {
+ pr_err("length(%d) must be greater than 0", len);
+ return -EINVAL;
+ }
+
+ hs = hsic_sysmon_devices[id];
+ if (!hs) {
+ pr_err("device was not opened");
+ return -ENODEV;
+ }
+
+ if (!hs->ifc) {
+ dev_err(&hs->udev->dev, "can't %s, device disconnected\n",
+ opstr);
+ return -ENODEV;
+ }
+
+ ret = usb_autopm_get_interface(hs->ifc);
+ if (ret < 0) {
+ dev_err(&hs->udev->dev, "can't %s, autopm_get failed:%d\n",
+ opstr, ret);
+ return ret;
+ }
+
+ atomic_inc(&hs->dbg_pending[op]);
+
+ ret = usb_bulk_msg(hs->udev, hs->pipe[op], data, len, actual_len,
+ timeout);
+
+ atomic_dec(&hs->dbg_pending[op]);
+
+ if (ret)
+ dev_err(&hs->udev->dev,
+ "can't %s, usb_bulk_msg failed, err:%d\n", opstr, ret);
+ else
+ atomic_add(*actual_len, &hs->dbg_bytecnt[op]);
+
+ usb_autopm_put_interface(hs->ifc);
+ return ret;
+}
+
+/**
+ * hsic_sysmon_read() - Read data from the HSIC sysmon interface.
+ * @id: the HSIC system monitor device to open
+ * @data: pointer to caller-allocated buffer to fill in
+ * @len: length in bytes of the buffer
+ * @actual_len: pointer to a location to put the actual length read
+ * in bytes
+ * @timeout: time in msecs to wait for the message to complete before
+ * timing out (if 0 the wait is forever)
+ *
+ * Context: !in_interrupt ()
+ *
+ * Synchronously reads data from the HSIC interface. The call will return
+ * after the read has completed, encountered an error, or timed out. Upon
+ * successful return actual_len will reflect the number of bytes read.
+ *
+ * If successful, it returns 0, otherwise a negative error number. The number
+ * of actual bytes transferred will be stored in the actual_len paramater.
+ */
+int hsic_sysmon_read(enum hsic_sysmon_device_id id, char *data, size_t len,
+ size_t *actual_len, int timeout)
+{
+ return hsic_sysmon_readwrite(id, data, len, actual_len,
+ timeout, HSIC_SYSMON_OP_READ);
+}
+EXPORT_SYMBOL(hsic_sysmon_read);
+
+/**
+ * hsic_sysmon_write() - Write data to the HSIC sysmon interface.
+ * @id: the HSIC system monitor device to open
+ * @data: pointer to caller-allocated buffer to write
+ * @len: length in bytes of the data in buffer to write
+ * @actual_len: pointer to a location to put the actual length written
+ * in bytes
+ * @timeout: time in msecs to wait for the message to complete before
+ * timing out (if 0 the wait is forever)
+ *
+ * Context: !in_interrupt ()
+ *
+ * Synchronously writes data to the HSIC interface. The call will return
+ * after the write has completed, encountered an error, or timed out. Upon
+ * successful return actual_len will reflect the number of bytes written.
+ *
+ * If successful, it returns 0, otherwise a negative error number. The number
+ * of actual bytes transferred will be stored in the actual_len paramater.
+ */
+int hsic_sysmon_write(enum hsic_sysmon_device_id id, const char *data,
+ size_t len, int timeout)
+{
+ size_t actual_len;
+ return hsic_sysmon_readwrite(id, (void *)data, len, &actual_len,
+ timeout, HSIC_SYSMON_OP_WRITE);
+}
+EXPORT_SYMBOL(hsic_sysmon_write);
+
+#if defined(CONFIG_DEBUG_FS)
+#define DEBUG_BUF_SIZE 512
+static ssize_t sysmon_debug_read_stats(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ char *buf;
+ int i, ret = 0;
+
+ buf = kzalloc(sizeof(char) * DEBUG_BUF_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ for (i = 0; i < NUM_HSIC_SYSMON_DEVS; i++) {
+ struct hsic_sysmon *hs = hsic_sysmon_devices[i];
+ if (!hs)
+ continue;
+
+ ret += scnprintf(buf, DEBUG_BUF_SIZE,
+ "---HSIC Sysmon #%d---\n"
+ "epin:%d, epout:%d\n"
+ "bytes to host: %d\n"
+ "bytes to mdm: %d\n"
+ "pending reads: %d\n"
+ "pending writes: %d\n",
+ i, hs->in_epaddr & ~0x80, hs->out_epaddr,
+ atomic_read(
+ &hs->dbg_bytecnt[HSIC_SYSMON_OP_READ]),
+ atomic_read(
+ &hs->dbg_bytecnt[HSIC_SYSMON_OP_WRITE]),
+ atomic_read(
+ &hs->dbg_pending[HSIC_SYSMON_OP_READ]),
+ atomic_read(
+ &hs->dbg_pending[HSIC_SYSMON_OP_WRITE])
+ );
+ }
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, ret);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t sysmon_debug_reset_stats(struct file *file,
+ const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ int i;
+
+ for (i = 0; i < NUM_HSIC_SYSMON_DEVS; i++) {
+ struct hsic_sysmon *hs = hsic_sysmon_devices[i];
+ if (hs) {
+ atomic_set(&hs->dbg_bytecnt[HSIC_SYSMON_OP_READ], 0);
+ atomic_set(&hs->dbg_bytecnt[HSIC_SYSMON_OP_WRITE], 0);
+ atomic_set(&hs->dbg_pending[HSIC_SYSMON_OP_READ], 0);
+ atomic_set(&hs->dbg_pending[HSIC_SYSMON_OP_WRITE], 0);
+ }
+ }
+
+ return count;
+}
+
+const struct file_operations sysmon_stats_ops = {
+ .read = sysmon_debug_read_stats,
+ .write = sysmon_debug_reset_stats,
+};
+
+static struct dentry *dent;
+
+static void hsic_sysmon_debugfs_init(void)
+{
+ struct dentry *dfile;
+
+ dent = debugfs_create_dir("hsic_sysmon", 0);
+ if (IS_ERR(dent))
+ return;
+
+ dfile = debugfs_create_file("status", 0444, dent, 0, &sysmon_stats_ops);
+ if (!dfile || IS_ERR(dfile))
+ debugfs_remove(dent);
+}
+
+static void hsic_sysmon_debugfs_cleanup(void)
+{
+ if (dent) {
+ debugfs_remove_recursive(dent);
+ dent = NULL;
+ }
+}
+#else
+static inline void hsic_sysmon_debugfs_init(void) { }
+static inline void hsic_sysmon_debugfs_cleanup(void) { }
+#endif
+
+static int
+hsic_sysmon_probe(struct usb_interface *ifc, const struct usb_device_id *id)
+{
+ struct hsic_sysmon *hs;
+ struct usb_host_interface *ifc_desc;
+ struct usb_endpoint_descriptor *ep_desc;
+ int i;
+ int ret = -ENOMEM;
+ __u8 ifc_num;
+
+ pr_debug("id:%lu", id->driver_info);
+
+ ifc_num = ifc->cur_altsetting->desc.bInterfaceNumber;
+
+ /* is this the interface we're looking for? */
+ if (ifc_num != id->driver_info)
+ return -ENODEV;
+
+ hs = kzalloc(sizeof(*hs), GFP_KERNEL);
+ if (!hs) {
+ pr_err("unable to allocate hsic_sysmon");
+ return -ENOMEM;
+ }
+
+ hs->udev = usb_get_dev(interface_to_usbdev(ifc));
+ hs->ifc = ifc;
+ kref_init(&hs->kref);
+
+ ifc_desc = ifc->cur_altsetting;
+ for (i = 0; i < ifc_desc->desc.bNumEndpoints; i++) {
+ ep_desc = &ifc_desc->endpoint[i].desc;
+
+ if (!hs->in_epaddr && usb_endpoint_is_bulk_in(ep_desc)) {
+ hs->in_epaddr = ep_desc->bEndpointAddress;
+ hs->pipe[HSIC_SYSMON_OP_READ] =
+ usb_rcvbulkpipe(hs->udev, hs->in_epaddr);
+ }
+
+ if (!hs->out_epaddr && usb_endpoint_is_bulk_out(ep_desc)) {
+ hs->out_epaddr = ep_desc->bEndpointAddress;
+ hs->pipe[HSIC_SYSMON_OP_WRITE] =
+ usb_sndbulkpipe(hs->udev, hs->out_epaddr);
+ }
+ }
+
+ if (!(hs->in_epaddr && hs->out_epaddr)) {
+ pr_err("could not find bulk in and bulk out endpoints");
+ ret = -ENODEV;
+ goto error;
+ }
+
+ hs->id = HSIC_SYSMON_DEV_EXT_MODEM;
+ hsic_sysmon_devices[HSIC_SYSMON_DEV_EXT_MODEM] = hs;
+ usb_set_intfdata(ifc, hs);
+
+ hs->pdev.name = "sys_mon";
+ hs->pdev.id = SYSMON_SS_EXT_MODEM;
+ platform_device_register(&hs->pdev);
+
+ pr_debug("complete");
+
+ return 0;
+
+error:
+ if (hs)
+ kref_put(&hs->kref, hsic_sysmon_delete);
+
+ return ret;
+}
+
+static void hsic_sysmon_disconnect(struct usb_interface *ifc)
+{
+ struct hsic_sysmon *hs = usb_get_intfdata(ifc);
+
+ platform_device_unregister(&hs->pdev);
+ kref_put(&hs->kref, hsic_sysmon_delete);
+ usb_set_intfdata(ifc, NULL);
+}
+
+static int hsic_sysmon_suspend(struct usb_interface *ifc, pm_message_t message)
+{
+ return 0;
+}
+
+static int hsic_sysmon_resume(struct usb_interface *ifc)
+{
+ return 0;
+}
+
+/* driver_info maps to the interface number corresponding to sysmon */
+static const struct usb_device_id hsic_sysmon_ids[] = {
+ { USB_DEVICE(0x5c6, 0x9048), .driver_info = 1, },
+ { USB_DEVICE(0x5c6, 0x904C), .driver_info = 1, },
+ {} /* terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, hsic_sysmon_ids);
+
+static struct usb_driver hsic_sysmon_driver = {
+ .name = "hsic_sysmon",
+ .probe = hsic_sysmon_probe,
+ .disconnect = hsic_sysmon_disconnect,
+ .suspend = hsic_sysmon_suspend,
+ .resume = hsic_sysmon_resume,
+ .id_table = hsic_sysmon_ids,
+ .supports_autosuspend = 1,
+};
+
+static int __init hsic_sysmon_init(void)
+{
+ int ret;
+
+ ret = usb_register(&hsic_sysmon_driver);
+ if (ret) {
+ pr_err("unable to register " DRIVER_DESC);
+ return ret;
+ }
+
+ hsic_sysmon_debugfs_init();
+ return 0;
+}
+
+static void __exit hsic_sysmon_exit(void)
+{
+ hsic_sysmon_debugfs_cleanup();
+ usb_deregister(&hsic_sysmon_driver);
+}
+
+module_init(hsic_sysmon_init);
+module_exit(hsic_sysmon_exit);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/mach-msm/hsic_sysmon.h b/arch/arm/mach-msm/hsic_sysmon.h
new file mode 100644
index 0000000..aa57b93
--- /dev/null
+++ b/arch/arm/mach-msm/hsic_sysmon.h
@@ -0,0 +1,56 @@
+/* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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 for more details.
+ */
+
+#ifndef __HSIC_SYSMON_H__
+#define __HSIC_SYSMON_H__
+
+/**
+ * enum hsic_sysmon_device_id - Supported HSIC subsystem devices
+ */
+enum hsic_sysmon_device_id {
+ HSIC_SYSMON_DEV_EXT_MODEM,
+ NUM_HSIC_SYSMON_DEVS
+};
+
+#if defined(CONFIG_MSM_HSIC_SYSMON) || defined(CONFIG_MSM_HSIC_SYSMON_MODULE)
+
+extern int hsic_sysmon_open(enum hsic_sysmon_device_id id);
+extern void hsic_sysmon_close(enum hsic_sysmon_device_id id);
+extern int hsic_sysmon_read(enum hsic_sysmon_device_id id, char *data,
+ size_t len, size_t *actual_len, int timeout);
+extern int hsic_sysmon_write(enum hsic_sysmon_device_id id, const char *data,
+ size_t len, int timeout);
+
+#else /* CONFIG_MSM_HSIC_SYSMON || CONFIG_MSM_HSIC_SYSMON_MODULE */
+
+static inline int hsic_sysmon_open(enum hsic_sysmon_device_id id)
+{
+ return -ENODEV;
+}
+
+static inline void hsic_sysmon_close(enum hsic_sysmon_device_id id) { }
+
+static inline int hsic_sysmon_read(enum hsic_sysmon_device_id id, char *data,
+ size_t len, size_t *actual_len, int timeout)
+{
+ return -ENODEV;
+}
+
+static inline int hsic_sysmon_write(enum hsic_sysmon_device_id id,
+ const char *data, size_t len, int timeout)
+{
+ return -ENODEV;
+}
+
+#endif /* CONFIG_MSM_HSIC_SYSMON || CONFIG_MSM_HSIC_SYSMON_MODULE */
+
+#endif /* __HSIC_SYSMON_H__ */
diff --git a/arch/arm/mach-msm/hsic_sysmon_test.c b/arch/arm/mach-msm/hsic_sysmon_test.c
new file mode 100644
index 0000000..9929cb7
--- /dev/null
+++ b/arch/arm/mach-msm/hsic_sysmon_test.c
@@ -0,0 +1,118 @@
+/* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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 for more details.
+ */
+
+/* add additional information to our printk's */
+#define pr_fmt(fmt) "%s: " fmt "\n", __func__
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/debugfs.h>
+#include <linux/uaccess.h>
+
+#include "hsic_sysmon.h"
+#include "sysmon.h"
+
+#define DRIVER_DESC "HSIC System monitor driver test"
+
+#define RD_BUF_SIZE 4096
+
+struct sysmon_test_dev {
+ int buflen;
+ char buf[RD_BUF_SIZE];
+};
+static struct sysmon_test_dev *sysmon_dev;
+
+static ssize_t sysmon_test_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct sysmon_test_dev *dev = sysmon_dev;
+ int ret;
+
+ if (!dev)
+ return -ENODEV;
+
+ ret = hsic_sysmon_read(HSIC_SYSMON_DEV_EXT_MODEM, dev->buf, RD_BUF_SIZE,
+ &dev->buflen, 3000);
+ if (!ret)
+ return simple_read_from_buffer(ubuf, count, ppos,
+ dev->buf, dev->buflen);
+
+ return 0;
+}
+
+static ssize_t sysmon_test_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct sysmon_test_dev *dev = sysmon_dev;
+ int ret;
+
+ if (!dev)
+ return -ENODEV;
+
+ if (copy_from_user(dev->buf, ubuf, count)) {
+ pr_err("error copying for writing");
+ return 0;
+ }
+
+ ret = hsic_sysmon_write(HSIC_SYSMON_DEV_EXT_MODEM,
+ dev->buf, count, 1000);
+ if (ret < 0) {
+ pr_err("error writing to hsic_sysmon");
+ return ret;
+ }
+
+ return count;
+}
+
+static int sysmon_test_open(struct inode *inode, struct file *file)
+{
+ return hsic_sysmon_open(HSIC_SYSMON_DEV_EXT_MODEM);
+}
+
+static int sysmon_test_release(struct inode *inode, struct file *file)
+{
+ hsic_sysmon_close(HSIC_SYSMON_DEV_EXT_MODEM);
+ return 0;
+}
+
+static struct dentry *dfile;
+const struct file_operations sysmon_test_ops = {
+ .read = sysmon_test_read,
+ .write = sysmon_test_write,
+ .open = sysmon_test_open,
+ .release = sysmon_test_release
+};
+
+static int __init sysmon_test_init(void)
+{
+ sysmon_dev = kzalloc(sizeof(*sysmon_dev), GFP_KERNEL);
+ if (!sysmon_dev)
+ return -ENOMEM;
+
+ dfile = debugfs_create_file("hsic_sysmon_test", 0666, NULL,
+ 0, &sysmon_test_ops);
+ return 0;
+}
+
+static void __exit sysmon_test_exit(void)
+{
+ if (dfile)
+ debugfs_remove(dfile);
+ kfree(sysmon_dev);
+}
+
+module_init(sysmon_test_init);
+module_exit(sysmon_test_exit);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/mach-msm/sysmon.h b/arch/arm/mach-msm/sysmon.h
index 429a155..496adf9 100644
--- a/arch/arm/mach-msm/sysmon.h
+++ b/arch/arm/mach-msm/sysmon.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -26,6 +26,7 @@
SYSMON_SS_WCNSS,
SYSMON_SS_DSPS,
SYSMON_SS_Q6FW,
+ SYSMON_SS_EXT_MODEM,
SYSMON_NUM_SS
};