From 3d7e59ad88fdb6bc50ae9b7e822d4bb5f68b68f9 Mon Sep 17 00:00:00 2001
From: Matthew Garrett <mjg@redhat.com>
Date: Thu, 1 Apr 2010 12:31:09 -0400
Subject: [PATCH] USB: qcserial: Use generic USB wwan code
Make qcserial use the generic USB wwan code. This should result in a
performance improvement.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/usb/serial/Kconfig | 1 +
drivers/usb/serial/qcserial.c | 22 ++++++++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index fdc889dc9fd8..efb6dc7aa450 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -485,6 +485,7 @@ config USB_SERIAL_QCAUX
config USB_SERIAL_QUALCOMM
tristate "USB Qualcomm Serial modem"
+ select USB_SERIAL_WWAN
help
Say Y here if you have a Qualcomm USB modem device. These are
usually wireless cellular modems.
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 53a2d5a935a2..9215f6c582c3 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -15,6 +15,8 @@
#include <linux/tty_flip.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#include <linux/slab.h>
+#include "usb-wwan.h"
#define DRIVER_AUTHOR "Qualcomm Inc"
#define DRIVER_DESC "Qualcomm USB Serial driver"
@@ -92,6 +94,7 @@ static struct usb_driver qcdriver = {
static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
{
+ struct usb_wwan_intf_private *data;
int retval = -ENODEV;
__u8 nintf;
__u8 ifnum;
@@ -103,6 +106,13 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
dbg("This Interface = %d", ifnum);
+ data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ spin_lock_init(&data->susp_lock);
+
switch (nintf) {
case 1:
/* QDL mode */
@@ -161,6 +171,18 @@ static struct usb_serial_driver qcdevice = {
.usb_driver = &qcdriver,
.num_ports = 1,
.probe = qcprobe,
+ .open = usb_wwan_open,
+ .close = usb_wwan_close,
+ .write = usb_wwan_write,
+ .write_room = usb_wwan_write_room,
+ .chars_in_buffer = usb_wwan_chars_in_buffer,
+ .attach = usb_wwan_startup,
+ .disconnect = usb_wwan_disconnect,
+ .release = usb_wwan_release,
+#ifdef CONFIG_PM
+ .suspend = usb_wwan_suspend,
+ .resume = usb_wwan_resume,
+#endif
};
static int __init qcinit(void)