diff options
| author |   Oliver Neukum <oneukum@suse.de> | 2011-07-13 13:54:48 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2011-08-22 15:21:16 -0700 |
| commit | 53e77df25f64567ee1f55e7d76b8843689c79d9e (patch) | |
| tree | aa124d50abe3cf7c20226ab2b2529ce32743be42 /drivers/usb/serial | |
| parent | usb_storage: Don't freeze in usb-stor-scan (diff) | |
| download | linux-dev-53e77df25f64567ee1f55e7d76b8843689c79d9e.tar.xz linux-dev-53e77df25f64567ee1f55e7d76b8843689c79d9e.zip | |
USB: ipw: convert to usb-wwan framework
From 2d487c10136f76cf3705881d34868e8592839cfe Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org>
Date: Tue, 12 Jul 2011 15:36:51 +0200
Subject: [PATCH] USB: ipw: convert to usb-wwan framework
This patch allows the ipw driver to use the multibuffer
infrastructure of usb-wwan. This improves speed.
Signed-off-by: Oliver Neukum<oneukum@suse.de>
Tested-by: Michal Hybner <dta081@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/ipw.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index ca77e88836bd..5170799d6e94 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -47,6 +47,7 @@ #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/uaccess.h> +#include "usb-wwan.h" /* * Version Information @@ -185,7 +186,7 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port) /*--2: Start reading from the device */ dbg("%s: setting up bulk read callback", __func__); - usb_serial_generic_open(tty, port); + usb_wwan_open(tty, port); /*--3: Tell the modem to open the floodgates on the rx bulk channel */ dbg("%s:asking modem for RxRead (RXBULK_ON)", __func__); @@ -219,6 +220,29 @@ static int ipw_open(struct tty_struct *tty, struct usb_serial_port *port) return 0; } +/* fake probe - only to allocate data structures */ +static int ipw_probe(struct usb_serial *serial, const struct usb_device_id *id) +{ + struct usb_wwan_intf_private *data; + + data = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL); + if (!data) + return -ENOMEM; + + spin_lock_init(&data->susp_lock); + usb_set_serial_data(serial, data); + return 0; +} + +static void ipw_release(struct usb_serial *serial) +{ + struct usb_wwan_intf_private *data = usb_get_serial_data(serial); + + usb_wwan_release(serial); + usb_set_serial_data(serial, NULL); + kfree(data); +} + static void ipw_dtr_rts(struct usb_serial_port *port, int on) { struct usb_device *dev = port->serial->dev; @@ -285,7 +309,7 @@ static void ipw_close(struct usb_serial_port *port) dev_err(&port->dev, "Disabling bulk RxRead failed (error = %d)\n", result); - usb_serial_generic_close(port); + usb_wwan_close(port); } static struct usb_serial_driver ipw_device = { @@ -297,9 +321,14 @@ static struct usb_serial_driver ipw_device = { .usb_driver = &usb_ipw_driver, .id_table = usb_ipw_ids, .num_ports = 1, + .disconnect = usb_wwan_disconnect, .open = ipw_open, .close = ipw_close, + .probe = ipw_probe, + .attach = usb_wwan_startup, + .release = ipw_release, .dtr_rts = ipw_dtr_rts, + .write = usb_wwan_write, }; |