From 4a3cc5d9a79d2dd615aa076f4116578c3ece94f6 Mon Sep 17 00:00:00 2001
From: Imre Kaloz <kaloz@openwrt.org>
Date: Sat, 26 Jul 2008 17:01:54 +0000
Subject: [PATCH] add backported HSO driver
SVN-Revision: 11938
---
package/kernel/modules/usb.mk | 19 +
target/linux/generic-2.6/config-2.6.26 | 3 +-
.../patches-2.6.26/915-hso-backport.patch | 2915 +++++++++++++++++
3 files changed, 2936 insertions(+), 1 deletion(-)
create mode 100644 target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch
diff --git a/package/kernel/modules/usb.mk b/package/kernel/modules/usb.mk
index dae1b8089e..adff3fa53f 100644
--- a/package/kernel/modules/usb.mk
+++ b/package/kernel/modules/usb.mk
@@ -574,6 +574,25 @@ endef
$(eval $(call KernelPackage,usb-net-asix))
+define KernelPackage/usb-net-hso
+ $(call usbdep,kmod-usb-net @LINUX_2_6)
+ TITLE:=Kernel module for Option USB High Speed Mobile Devices
+ KCONFIG:= \
+ CONFIG_RFKILL \
+ CONFIG_USB_HSO
+ FILES:= \
+ $(LINUX_DIR)/net/rfkill/rfkill.$(LINUX_KMOD_SUFFIX) \
+ $(LINUX_DIR)/drivers/$(USBNET_DIR)/hso.$(LINUX_KMOD_SUFFIX)
+ AUTOLOAD:=$(call AutoLoad,61,rfkill hso)
+endef
+
+define KernelPackage/usb-net-hso/description
+ Kernel module for Option USB High Speed Mobile Devices
+endef
+
+$(eval $(call KernelPackage,usb-net-hso))
+
+
define KernelPackage/usb-net-kaweth
$(call usbdep,kmod-usb-net @LINUX_2_6)
TITLE:=Kernel module for USB-to-Ethernet Kaweth convertors
diff --git a/target/linux/generic-2.6/config-2.6.26 b/target/linux/generic-2.6/config-2.6.26
index 61809491b5..1e6951d72f 100644
--- a/target/linux/generic-2.6/config-2.6.26
+++ b/target/linux/generic-2.6/config-2.6.26
@@ -1166,7 +1166,8 @@ CONFIG_RAMFS=y
# CONFIG_RELAY is not set
# CONFIG_RESOURCES_64BIT is not set
# CONFIG_RFD_FTL is not set
-# CONFIG_RFKILL is not set
+CONFIG_RFKILL=m
+# CONFIG_RFKILL_INPUT is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_ROSE is not set
CONFIG_RPCSEC_GSS_KRB5=m
diff --git a/target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch b/target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch
new file mode 100644
index 0000000000..34c2d94259
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch
@@ -0,0 +1,2915 @@
+From: Greg Kroah-Hartman <gregkh@suse.de>
+Date: Wed, 14 May 2008 04:57:12 +0000 (-0700)
+Subject: HSO: add option hso driver
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=72dc1c096c7051a48ab1dbb12f71976656b55eb5;hp=44f74c046961bd1f21b7d35baaa9165572d1e975
+
+HSO: add option hso driver
+
+This driver is for a number of different Option devices. Originally
+written by Option and Andrew Bird, but cleaned up massivly for
+acceptance into mainline by me and others.
+
+Many thanks to the following for their help in cleaning up the driver by
+providing feedback and patches to it:
+ - Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ - Oliver Neukum <oliver@neukum.org>
+ - Alan Cox <alan@lxorguk.ukuu.org.uk>
+ - Javier Marcet <javier@krausbeck.org>
+
+Cc: Andrew Bird <ajb@spheresystems.co.uk>
+Cc: Javier Marcet <javier@krausbeck.org>
+Cc: Filip Aben <f.aben@option.com>
+Cc: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+Cc: Oliver Neukum <oliver@neukum.org>
+Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
+Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
+Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
+---
+
+diff --git a/drivers/net/Makefile b/drivers/net/Makefile
+index c52738a..c96fe20 100644
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -237,6 +237,7 @@ obj-$(CONFIG_USB_CATC) += usb/
+ obj-$(CONFIG_USB_KAWETH) += usb/
+ obj-$(CONFIG_USB_PEGASUS) += usb/
+ obj-$(CONFIG_USB_RTL8150) += usb/
++obj-$(CONFIG_USB_HSO) += usb/
+ obj-$(CONFIG_USB_USBNET) += usb/
+ obj-$(CONFIG_USB_ZD1201) += usb/
+
+diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
+index 0604f3f..68e198b 100644
+--- a/drivers/net/usb/Kconfig
++++ b/drivers/net/usb/Kconfig
+@@ -154,6 +154,16 @@ config USB_NET_AX8817X
+ This driver creates an interface named "ethX", where X depends on
+ what other networking devices you have in use.
+
++config USB_HSO
++ tristate "Option USB High Speed Mobile Devices"
++ depends on USB && RFKILL
++ default n
++ help
++ Choose this option if you have an Option HSDPA/HSUPA card.
++ These cards support downlink speeds of 7.2Mbps or greater.
++
++ To compile this driver as a module, choose M here: the
++ module will be called hso.
+
+ config USB_NET_CDCETHER
+ tristate "CDC Ethernet support (smart devices such as cable modems)"
+diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
+index 595a539..24800c1 100644
+--- a/drivers/net/usb/Makefile
++++ b/drivers/net/usb/Makefile
+@@ -6,6 +6,7 @@ obj-$(CONFIG_USB_CATC) += catc.o
+ obj-$(CONFIG_USB_KAWETH) += kaweth.o
+ obj-$(CONFIG_USB_PEGASUS) += pegasus.o
+ obj-$(CONFIG_USB_RTL8150) += rtl8150.o
++obj-$(CONFIG_USB_HSO) += hso.o
+ obj-$(CONFIG_USB_NET_AX8817X) += asix.o
+ obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
+ obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
+diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
+new file mode 100644
+index 0000000..031d07b
+--- /dev/null
++++ b/drivers/net/usb/hso.c
+@@ -0,0 +1,2836 @@
++/******************************************************************************
++ *
++ * Driver for Option High Speed Mobile Devices.
++ *
++ * Copyright (C) 2008 Option International
++ * Copyright (C) 2007 Andrew Bird (Sphere Systems Ltd)
++ * <ajb@spheresystems.co.uk>
++ * Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de>
++ * Copyright (C) 2008 Novell, Inc.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License 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.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
++ * USA
++ *
++ *
++ *****************************************************************************/
++
++/******************************************************************************
++ *
++ * Description of the device:
++ *
++ * Interface 0: Contains the IP network interface on the bulk end points.
++ * The multiplexed serial ports are using the interrupt and
++ * control endpoints.
++ * Interrupt contains a bitmap telling which multiplexed
++ * serialport needs servicing.
++ *
++ * Interface 1: Diagnostics port, uses bulk only, do not submit urbs until the
++ * port is opened, as this have a huge impact on the network port
++ * throughput.
++ *
++ * Interface 2: Standard modem interface - circuit switched interface, should
++ * not be used.
++ *
++ *****************************************************************************/
++
++#include <linux/sched.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/netdevice.h>
++#include <linux/module.h>
++#include <linux/ethtool.h>
++#include <linux/usb.h>
++#include <linux/timer.h>
++#include <linux/tty.h>
++#include <linux/tty_driver.h>
++#include <linux/tty_flip.h>
++#include <linux/kmod.h>
++#include <linux/rfkill.h>
++#include <linux/ip.h>
++#include <linux/uaccess.h>
++#include <linux/usb/cdc.h>
++#include <net/arp.h>
++#include <asm/byteorder.h>
++
++
++#define DRIVER_VERSION "1.2"
++#define MOD_AUTHOR "Option Wireless"
++#define MOD_DESCRIPTION "USB High Speed Option driver"
++#define MOD_LICENSE "GPL"
++
++#define HSO_MAX_NET_DEVICES 10
++#define HSO__MAX_MTU 2048
++#define DEFAULT_MTU 1500
++#define DEFAULT_MRU 1500
++
++#define CTRL_URB_RX_SIZE 1024
++#define CTRL_URB_TX_SIZE 64
++
++#define BULK_URB_RX_SIZE 4096
++#define BULK_URB_TX_SIZE 8192
++
++#define MUX_BULK_RX_BUF_SIZE HSO__MAX_MTU
++#define MUX_BULK_TX_BUF_SIZE HSO__MAX_MTU
++#define MUX_BULK_RX_BUF_COUNT 4
++#define USB_TYPE_OPTION_VENDOR 0x20
++
++/* These definitions are used with the struct hso_net flags element */
++/* - use *_bit operations on it. (bit indices not values.) */
++#define HSO_NET_RUNNING 0
++
++#define HSO_NET_TX_TIMEOUT (HZ*10)
++
++/* Serial port defines and structs. */
++#define HSO_SERIAL_FLAG_RX_SENT 0
++
++#define HSO_SERIAL_MAGIC 0x48534f31
++
++/* Number of ttys to handle */
++#define HSO_SERIAL_TTY_MINORS 256
++
++#define MAX_RX_URBS 2
++
++#define get_serial_by_tty(x) \
++ (x ? (struct hso_serial *)x->driver_data : NULL)
++
++/*****************************************************************************/
++/* Debugging functions */
++/*****************************************************************************/
++#define D__(lvl_, fmt, arg...) \
++ do { \
++ printk(lvl_ "[%d:%s]: " fmt "\n", \
++ __LINE__, __func__, ## arg); \
++ } while (0)
++
++#define D_(lvl, args...) \
++ do { \
++ if (lvl & debug) \
++ D__(KERN_INFO, args); \
++ } while (0)
++
++#define D1(args...) D_(0x01, ##args)
++#define D2(args...) D_(0x02, ##args)
++#define D3(args...) D_(0x04, ##args)
++#define D4(args...) D_(0x08, ##args)
++#define D5(args...) D_(0x10, ##args)
++
++/*****************************************************************************/
++/* Enumerators */
++/*****************************************************************************/
++enum pkt_parse_state {
++ WAIT_IP,
++ WAIT_DATA,
++ WAIT_SYNC
++};
++
++/*****************************************************************************/
++/* Structs */
++/*****************************************************************************/
++
++struct hso_shared_int {
++ struct usb_endpoint_descriptor *intr_endp;
++ void *shared_intr_buf;
++ struct urb *shared_intr_urb;
++ struct usb_device *usb;
++ int use_count;
++ int ref_count;
++ struct mutex shared_int_lock;
++};
++
++struct hso_net {
++ struct hso_device *parent;
++ struct net_device *net;
++ struct rfkill *rfkill;
++
++ struct usb_endpoint_descriptor *in_endp;
++ struct usb_endpoint_descriptor *out_endp;
++
++ struct urb *mux_bulk_rx_urb_pool[MUX_BULK_RX_BUF_COUNT];
++ struct urb *mux_bulk_tx_urb;
++ void *mux_bulk_rx_buf_pool[MUX_BULK_RX_BUF_COUNT];
++ void *mux_bulk_tx_buf;
++
++ struct sk_buff *skb_rx_buf;
++ struct sk_buff *skb_tx_buf;
++
++ enum pkt_parse_state rx_parse_state;
++ spinlock_t net_lock;
++
++ unsigned short rx_buf_size;
++ unsigned short rx_buf_missing;
++ struct iphdr rx_ip_hdr;
++
++ unsigned long flags;
++};
++
++struct hso_serial {
++ struct hso_device *parent;
++ int magic;
++ u8 minor;
++
++ struct hso_shared_int *shared_int;
++
++ /* rx/tx urb could be either a bulk urb or a control urb depending
++ on which serial port it is used on. */
++ struct urb *rx_urb[MAX_RX_URBS];
++ u8 num_rx_urbs;
++ u8 *rx_data[MAX_RX_URBS];
++ u16 rx_data_length; /* should contain allocated length */
++
++ struct urb *tx_urb;
++ u8 *tx_data;
++ u8 *tx_buffer;
++ u16 tx_data_length; /* should contain allocated length */
++ u16 tx_data_count;
++ u16 tx_buffer_count;
++ struct usb_ctrlrequest ctrl_req_tx;
++ struct usb_ctrlrequest ctrl_req_rx;
++
++ struct usb_endpoint_descriptor *in_endp;
++ struct usb_endpoint_descriptor *out_endp;
++
++ unsigned long flags;
++ u8 rts_state;
++ u8 dtr_state;
++ unsigned tx_urb_used:1;
++
++ /* from usb_serial_port */
++ struct tty_struct *tty;
++ int open_count;
++ spinlock_t serial_lock;
++
++ int (*write_data) (struct hso_serial *serial);
++};
++
++struct hso_device {
++ union {
++ struct hso_serial *dev_serial;
++ struct hso_net *dev_net;
++ } port_data;
++
++ u32 port_spec;
++
++ u8 is_active;
++ u8 usb_gone;
++ struct work_struct async_get_intf;
++ struct work_struct async_put_intf;
++
++ struct usb_device *usb;
++ struct usb_interface *interface;
++
++ struct device *dev;
++ struct kref ref;
++ struct mutex mutex;
++};
++
++/* Type of interface */
++#define HSO_INTF_MASK 0xFF00
++#define HSO_INTF_MUX 0x0100
++#define HSO_INTF_BULK 0x0200
++
++/* Type of port */
++#define HSO_PORT_MASK 0xFF
++#define HSO_PORT_NO_PORT 0x0
++#define HSO_PORT_CONTROL 0x1
++#define HSO_PORT_APP 0x2
++#define HSO_PORT_GPS 0x3
++#define HSO_PORT_PCSC 0x4
++#define HSO_PORT_APP2 0x5
++#define HSO_PORT_GPS_CONTROL 0x6
++#define HSO_PORT_MSD 0x7
++#define HSO_PORT_VOICE 0x8
++#define HSO_PORT_DIAG2 0x9
++#define HSO_PORT_DIAG 0x10
++#define HSO_PORT_MODEM 0x11
++#define HSO_PORT_NETWORK 0x12
++
++/* Additional device info */
++#define HSO_INFO_MASK 0xFF000000
++#define HSO_INFO_CRC_BUG 0x01000000
++
++/*****************************************************************************/
++/* Prototypes */
++/*****************************************************************************/
++/* Serial driver functions */
++static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file,
++ unsigned int set, unsigned int clear);
++static void ctrl_callback(struct urb *urb);
++static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial);
++static void hso_kick_transmit(struct hso_serial *serial);
++/* Helper functions */
++static int hso_mux_submit_intr_urb(struct hso_shared_int *mux_int,
++ struct usb_device *usb, gfp_t gfp);
++static void log_usb_status(int status, const char *function);
++static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf,
++ int type, int dir);
++static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports);
++static void hso_free_interface(struct usb_interface *intf);
++static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags);
++static int hso_stop_serial_device(struct hso_device *hso_dev);
++static int hso_start_net_device(struct hso_device *hso_dev);
++static void hso_free_shared_int(struct hso_shared_int *shared_int);
++static int hso_stop_net_device(struct hso_device *hso_dev);
++static void hso_serial_ref_free(struct kref *ref);
++static void async_get_intf(struct work_struct *data);
++static void async_put_intf(struct work_struct *data);
++static int hso_put_activity(struct hso_device *hso_dev);
++static int hso_get_activity(struct hso_device *hso_dev);
++
++/*****************************************************************************/
++/* Helping functions */
++/*****************************************************************************/
++
++/* #define DEBUG */
++
++#define dev2net(x) (x->port_data.dev_net)
++#define dev2ser(x) (x->port_data.dev_serial)
++
++/* Debugging functions */
++#ifdef DEBUG
++static void dbg_dump(int line_count, const char *func_name, unsigned char *buf,
++ unsigned int len)
++{
++ u8 i = 0;
++
++ printk(KERN_DEBUG "[%d:%s]: len %d", line_count, func_name, len);
++
++ for (i = 0; i < len; i++) {
++ if (!(i % 16))
++ printk("\n 0x%03x: ", i);
++ printk("%02x ", (unsigned char)buf[i]);
++ }
++ printk("\n");
++}
++
++#define DUMP(buf_, len_) \
++ dbg_dump(__LINE__, __func__, buf_, len_)
++
++#define DUMP1(buf_, len_) \
++ do { \
++ if (0x01 & debug) \
++ DUMP(buf_, len_); \
++ } while (0)
++#else
++#define DUMP(buf_, len_)
++#define DUMP1(buf_, len_)
++#endif
++
++/* module parameters */
++static int debug;
++static int tty_major;
++static int disable_net;
++
++/* driver info */
++static const char driver_name[] = "hso";
++static const char tty_filename[] = "ttyHS";
++static const char *version = __FILE__ ": " DRIVER_VERSION " " MOD_AUTHOR;
++/* the usb driver itself (registered in hso_init) */
++static struct usb_driver hso_driver;
++/* serial structures */
++static struct tty_driver *tty_drv;
++static struct hso_device *serial_table[HSO_SERIAL_TTY_MINORS];
++static struct hso_device *network_table[HSO_MAX_NET_DEVICES];
++static spinlock_t serial_table_lock;
++static struct ktermios *hso_serial_termios[HSO_SERIAL_TTY_MINORS];
++static struct ktermios *hso_serial_termios_locked[HSO_SERIAL_TTY_MINORS];
++
++static const s32 default_port_spec[] = {
++ HSO_INTF_MUX | HSO_PORT_NETWORK,
++ HSO_INTF_BULK | HSO_PORT_DIAG,
++ HSO_INTF_BULK | HSO_PORT_MODEM,
++ 0
++};
++
++static const s32 icon321_port_spec[] = {
++ HSO_INTF_MUX | HSO_PORT_NETWORK,
++ HSO_INTF_BULK | HSO_PORT_DIAG2,
++ HSO_INTF_BULK | HSO_PORT_MODEM,
++ HSO_INTF_BULK | HSO_PORT_DIAG,
++ 0
++};
++
++#define default_port_device(vendor, product) \
++ USB_DEVICE(vendor, product), \
++ .driver_info = (kernel_ulong_t)default_port_spec
++
++#define icon321_port_device(vendor, product) \
++ USB_DEVICE(vendor, product), \
++ .driver_info = (kernel_ulong_t)icon321_port_spec
++
++/* list of devices we support */
++static const struct usb_device_id hso_ids[] = {
++ {default_port_device(0x0af0, 0x6711)},
++ {default_port_device(0x0af0, 0x6731)},
++ {default_port_device(0x0af0, 0x6751)},
++ {default_port_device(0x0af0, 0x6771)},
++ {default_port_device(0x0af0, 0x6791)},
++ {default_port_device(0x0af0, 0x6811)},
++ {default_port_device(0x0af0, 0x6911)},
++ {default_port_device(0x0af0, 0x6951)},
++ {default_port_device(0x0af0, 0x6971)},
++ {default_port_device(0x0af0, 0x7011)},
++ {default_port_device(0x0af0, 0x7031)},
++ {default_port_device(0x0af0, 0x7051)},
++ {default_port_device(0x0af0, 0x7071)},
++ {default_port_device(0x0af0, 0x7111)},
++ {default_port_device(0x0af0, 0x7211)},
++ {default_port_device(0x0af0, 0x7251)},
++ {default_port_device(0x0af0, 0x7271)},
++ {default_port_device(0x0af0, 0x7311)},
++ {default_port_device(0x0af0, 0xc031)}, /* Icon-Edge */
++ {icon321_port_device(0x0af0, 0xd013)}, /* Module HSxPA */
++ {icon321_port_device(0x0af0, 0xd031)}, /* Icon-321 */
++ {default_port_device(0x0af0, 0xd033)}, /* Icon-322 */
++ {USB_DEVICE(0x0af0, 0x7301)}, /* GE40x */
++ {USB_DEVICE(0x0af0, 0x7361)}, /* GE40x */
++ {USB_DEVICE(0x0af0, 0x7401)}, /* GI 0401 */
++ {USB_DEVICE(0x0af0, 0x7501)}, /* GTM 382 */
++ {USB_DEVICE(0x0af0, 0x7601)}, /* GE40x */
++ {}
++};
++MODULE_DEVICE_TABLE(usb, hso_ids);
++
++/* Sysfs attribute */
++static ssize_t hso_sysfs_show_porttype(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct hso_device *hso_dev = dev->driver_data;
++ char *port_name;
++
++ if (!hso_dev)
++ return 0;
++
++ switch (hso_dev->port_spec & HSO_PORT_MASK) {
++ case HSO_PORT_CONTROL:
++ port_name = "Control";
++ break;
++ case HSO_PORT_APP:
++ port_name = "Application";
++ break;
++ case HSO_PORT_APP2:
++ port_name = "Application2";
++ break;
++ case HSO_PORT_GPS:
++ port_name = "GPS";
++ break;
++ case HSO_PORT_GPS_CONTROL:
++ port_name = "GPS Control";
++ break;
++ case HSO_PORT_PCSC:
++ port_name = "PCSC";
++ break;
++ case HSO_PORT_DIAG:
++ port_name = "Diagnostic";
++ break;
++ case HSO_PORT_DIAG2:
++ port_name = "Diagnostic2";
++ break;
++ case HSO_PORT_MODEM:
++ port_name = "Modem";
++ break;
++ case HSO_PORT_NETWORK:
++ port_name = "Network";
++ break;
++ default:
++ port_name = "Unknown";
++ break;
++ }
++
++ return sprintf(buf, "%s\n", port_name);
++}
++static DEVICE_ATTR(hsotype, S_IRUGO, hso_sysfs_show_porttype, NULL);
++
++/* converts mux value to a port spec value */
++static u32 hso_mux_to_port(int mux)
++{
++ u32 result;
++
++ switch (mux) {
++ case 0x1:
++ result = HSO_PORT_CONTROL;
++ break;
++ case 0x2:
++ result = HSO_PORT_APP;
++ break;
++ case 0x4:
++ result = HSO_PORT_PCSC;
++ break;
++ case 0x8:
++ result = HSO_PORT_GPS;
++ break;
++ case 0x10:
++ result = HSO_PORT_APP2;
++ break;
++ default:
++ result = HSO_PORT_NO_PORT;
++ }
++ return result;
++}
++
++/* converts port spec value to a mux value */
++static u32 hso_port_to_mux(int port)
++{
++ u32 result;
++
++ switch (port & HSO_PORT_MASK) {
++ case HSO_PORT_CONTROL:
++ result = 0x0;
++ break;
++ case HSO_PORT_APP:
++ result = 0x1;
++ break;
++ case HSO_PORT_PCSC:
++ result = 0x2;
++ break;
++ case HSO_PORT_GPS:
++ result = 0x3;
++ break;
++ case HSO_PORT_APP2:
++ result = 0x4;
++ break;
++ default:
++ result = 0x0;
++ }
++ return result;
++}
++
++static struct hso_serial *get_serial_by_shared_int_and_type(
++ struct hso_shared_int *shared_int,
++ int mux)
++{
++ int i, port;
++
++ port = hso_mux_to_port(mux);
++
++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
++ if (serial_table[i]
++ && (dev2ser(serial_table[i])->shared_int == shared_int)
++ && ((serial_table[i]->port_spec & HSO_PORT_MASK) == port)) {
++ return dev2ser(serial_table[i]);
++ }
++ }
++
++ return NULL;
++}
++
++static struct hso_serial *get_serial_by_index(unsigned index)
++{
++ struct hso_serial *serial;
++ unsigned long flags;
++
++ if (!serial_table[index])
++ return NULL;
++ spin_lock_irqsave(&serial_table_lock, flags);
++ serial = dev2ser(serial_table[index]);
++ spin_unlock_irqrestore(&serial_table_lock, flags);
++
++ return serial;
++}
++
++static int get_free_serial_index(void)
++{
++ int index;
++ unsigned long flags;
++
++ spin_lock_irqsave(&serial_table_lock, flags);
++ for (index = 0; index < HSO_SERIAL_TTY_MINORS; index++) {
++ if (serial_table[index] == NULL) {
++ spin_unlock_irqrestore(&serial_table_lock, flags);
++ return index;
++ }
++ }
++ spin_unlock_irqrestore(&serial_table_lock, flags);
++
++ printk(KERN_ERR "%s: no free serial devices in table\n", __func__);
++ return -1;
++}
++
++static void set_serial_by_index(unsigned index, struct hso_serial *serial)
++{
++ unsigned long flags;
++ spin_lock_irqsave(&serial_table_lock, flags);
++ if (serial)
++ serial_table[index] = serial->parent;
++ else
++ serial_table[index] = NULL;
++ spin_unlock_irqrestore(&serial_table_lock, flags);
++}
++
++/* log a meaningfull explanation of an USB status */
++static void log_usb_status(int status, const char *function)
++{
++ char *explanation;
++
++ switch (status) {
++ case -ENODEV:
++ explanation = "no device";
++ break;
++ case -ENOENT:
++ explanation = "endpoint not enabled";
++ break;
++ case -EPIPE:
++ explanation = "endpoint stalled";
++ break;
++ case -ENOSPC:
++ explanation = "not enough bandwidth";
++ break;
++ case -ESHUTDOWN:
++ explanation = "device disabled";
++ break;
++ case -EHOSTUNREACH:
++ explanation = "device suspended";
++ break;
++ case -EINVAL:
++ case -EAGAIN:
++ case -EFBIG:
++ case -EMSGSIZE:
++ explanation = "internal error";
++ break;
++ default:
++ explanation = "unknown status";
++ break;
++ }
++ D1("%s: received USB status - %s (%d)", function, explanation, status);
++}
++
++/* Network interface functions */
++
++/* called when net interface is brought up by ifconfig */
++static int hso_net_open(struct net_device *net)
++{
++ struct hso_net *odev = netdev_priv(net);
++ unsigned long flags = 0;
++
++ if (!odev) {
++ dev_err(&net->dev, "No net device !\n");
++ return -ENODEV;
++ }
++
++ odev->skb_tx_buf = NULL;
++
++ /* setup environment */
++ spin_lock_irqsave(&odev->net_lock, flags);
++ odev->rx_parse_state = WAIT_IP;
++ odev->rx_buf_size = 0;
++ odev->rx_buf_missing = sizeof(struct iphdr);
++ spin_unlock_irqrestore(&odev->net_lock, flags);
++
++ hso_start_net_device(odev->parent);
++
++ /* We are up and running. */
++ set_bit(HSO_NET_RUNNING, &odev->flags);
++
++ /* Tell the kernel we are ready to start receiving from it */
++ netif_start_queue(net);
++
++ return 0;
++}
++
++/* called when interface is brought down by ifconfig */
++static int hso_net_close(struct net_device *net)
++{
++ struct hso_net *odev = netdev_priv(net);
++
++ /* we don't need the queue anymore */
++ netif_stop_queue(net);
++ /* no longer running */
++ clear_bit(HSO_NET_RUNNING, &odev->flags);
++
++ hso_stop_net_device(odev->parent);
++
++ /* done */
++ return 0;
++}
++
++/* USB tells is xmit done, we should start the netqueue again */
++static void write_bulk_callback(struct urb *urb)
++{
++ struct hso_net *odev = urb->context;
++ int status = urb->status;
++
++ /* Sanity check */
++ if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) {
++ dev_err(&urb->dev->dev, "%s: device not running\n", __func__);
++ return;
++ }
++
++ /* Do we still have a valid kernel network device? */
++ if (!netif_device_present(odev->net)) {
++ dev_err(&urb->dev->dev, "%s: net device not present\n",
++ __func__);
++ return;
++ }
++
++ /* log status, but don't act on it, we don't need to resubmit anything
++ * anyhow */
++ if (status)
++ log_usb_status(status, __func__);
++
++ hso_put_activity(odev->parent);
++
++ /* Tell the network interface we are ready for another frame */
++ netif_wake_queue(odev->net);
++}
++
++/* called by kernel when we need to transmit a packet */
++static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net)
++{
++ struct hso_net *odev = netdev_priv(net);
++ int result;
++
++ /* Tell the kernel, "No more frames 'til we are done with this one." */
++ netif_stop_queue(net);
++ if (hso_get_activity(odev->parent) == -EAGAIN) {
++ odev->skb_tx_buf = skb;
++ return 0;
++ }
++
++ /* log if asked */
++ DUMP1(skb->data, skb->len);
++ /* Copy it from kernel memory to OUR memory */
++ memcpy(odev->mux_bulk_tx_buf, skb->data, skb->len);
++ D1("len: %d/%d", skb->len, MUX_BULK_TX_BUF_SIZE);
++
++ /* Fill in the URB for shipping it out. */
++ usb_fill_bulk_urb(odev->mux_bulk_tx_urb,
++ odev->parent->usb,
++ usb_sndbulkpipe(odev->parent->usb,
++ odev->out_endp->
++ bEndpointAddress & 0x7F),
++ odev->mux_bulk_tx_buf, skb->len, write_bulk_callback,
++ odev);
++
++ /* Deal with the Zero Length packet problem, I hope */
++ odev->mux_bulk_tx_urb->transfer_flags |= URB_ZERO_PACKET;
++
++ /* Send the URB on its merry way. */
++ result = usb_submit_urb(odev->mux_bulk_tx_urb, GFP_ATOMIC);
++ if (result) {
++ dev_warn(&odev->parent->interface->dev,
++ "failed mux_bulk_tx_urb %d", result);
++ net->stats.tx_errors++;
++ netif_start_queue(net);
++ } else {
++ net->stats.tx_packets++;
++ net->stats.tx_bytes += skb->len;
++ /* And tell the kernel when the last transmit started. */
++ net->trans_start = jiffies;
++ }
++ dev_kfree_skb(skb);
++ /* we're done */
++ return result;
++}
++
++static void hso_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
++{
++ struct hso_net *odev = netdev_priv(net);
++
++ strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
++ strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
++ usb_make_path(odev->parent->usb, info->bus_info, sizeof info->bus_info);
++}
++
++static struct ethtool_ops ops = {
++ .get_drvinfo = hso_get_drvinfo,
++ .get_link = ethtool_op_get_link
++};
++
++/* called when a packet did not ack after watchdogtimeout */
++static void hso_net_tx_timeout(struct net_device *net)
++{
++ struct hso_net *odev = netdev_priv(net);
++
++ if (!odev)
++ return;
++
++ /* Tell syslog we are hosed. */
++ dev_warn(&net->dev, "Tx timed out.\n");
++
++ /* Tear the waiting frame off the list */
++ if (odev->mux_bulk_tx_urb
++ && (odev->mux_bulk_tx_urb->status == -EINPROGRESS))
++ usb_unlink_urb(odev->mux_bulk_tx_urb);
++
++ /* Update statistics */
++ net->stats.tx_errors++;
++}
++
++/* make a real packet from the received USB buffer */
++static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
++ unsigned int count, unsigned char is_eop)
++{
++ unsigned short temp_bytes;
++ unsigned short buffer_offset = 0;
++ unsigned short frame_len;
++ unsigned char *tmp_rx_buf;
++
++ /* log if needed */
++ D1("Rx %d bytes", count);
++ DUMP(ip_pkt, min(128, (int)count));
++
++ while (count) {
++ switch (odev->rx_parse_state) {
++ case WAIT_IP:
++ /* waiting for IP header. */
++ /* wanted bytes - size of ip header */
++ temp_bytes =
++ (count <
++ odev->rx_buf_missing) ? count : odev->
++ rx_buf_missing;
++
++ memcpy(((unsigned char *)(&odev->rx_ip_hdr)) +
++ odev->rx_buf_size, ip_pkt + buffer_offset,
++ temp_bytes);
++
++ odev->rx_buf_size += temp_bytes;
++ buffer_offset += temp_bytes;
++ odev->rx_buf_missing -= temp_bytes;
++ count -= temp_bytes;
++
++ if (!odev->rx_buf_missing) {
++ /* header is complete allocate an sk_buffer and
++ * continue to WAIT_DATA */
++ frame_len = ntohs(odev->rx_ip_hdr.tot_len);
++
++ if ((frame_len > DEFAULT_MRU) ||
++ (frame_len < sizeof(struct iphdr))) {
++ dev_err(&odev->net->dev,
++ "Invalid frame (%d) length\n",
++ frame_len);
++ odev->rx_parse_state = WAIT_SYNC;
++ continue;
++ }
++ /* Allocate an sk_buff */
++ odev->skb_rx_buf = dev_alloc_skb(frame_len);
++ if (!odev->skb_rx_buf) {
++ /* We got no receive buffer. */
++ D1("could not allocate memory");
++ odev->rx_parse_state = WAIT_SYNC;
++ return;
++ }
++ /* Here's where it came from */
++ odev->skb_rx_buf->dev = odev->net;
++
++ /* Copy what we got so far. make room for iphdr
++ * after tail. */
++ tmp_rx_buf =
++ skb_put(odev->skb_rx_buf,
++ sizeof(struct iphdr));
++ memcpy(tmp_rx_buf, (char *)&(odev->rx_ip_hdr),
++ sizeof(struct iphdr));
++
++ /* ETH_HLEN */
++ odev->rx_buf_size = sizeof(struct iphdr);
++
++ /* Filip actually use .tot_len */
++ odev->rx_buf_missing =
++ frame_len - sizeof(struct iphdr);
++ odev->rx_parse_state = WAIT_DATA;
++ }
++ break;
++
++ case WAIT_DATA:
++ temp_bytes = (count < odev->rx_buf_missing)
++ ? count : odev->rx_buf_missing;
++
++ /* Copy the rest of the bytes that are left in the
++ * buffer into the waiting sk_buf. */
++ /* Make room for temp_bytes after tail. */
++ tmp_rx_buf = skb_put(odev->skb_rx_buf, temp_bytes);
++ memcpy(tmp_rx_buf, ip_pkt + buffer_offset, temp_bytes);
++
++ odev->rx_buf_missing -= temp_bytes;
++ count -= temp_bytes;
++ buffer_offset += temp_bytes;
++ odev->rx_buf_size += temp_bytes;
++ if (!odev->rx_buf_missing) {
++ /* Packet is complete. Inject into stack. */
++ /* We have IP packet here */
++ odev->skb_rx_buf->protocol =
++ __constant_htons(ETH_P_IP);
++ /* don't check it */
++ odev->skb_rx_buf->ip_summed =
++ CHECKSUM_UNNECESSARY;
++
++ skb_reset_mac_header(odev->skb_rx_buf);
++
++ /* Ship it off to the kernel */
++ netif_rx(odev->skb_rx_buf);
++ /* No longer our buffer. */
++ odev->skb_rx_buf = NULL;
++
++ /* update out statistics */
++ odev->net->stats.rx_packets++;
++
++ odev->net->stats.rx_bytes += odev->rx_buf_size;
++
++ odev->rx_buf_size = 0;
++ odev->rx_buf_missing = sizeof(struct iphdr);
++ odev->rx_parse_state = WAIT_IP;
++ }
++ break;
++
++ case WAIT_SYNC:
++ D1(" W_S");
++ count = 0;
++ break;
++ default:
++ D1(" ");
++ count--;
++ break;
++ }
++ }
++
++ /* Recovery mechanism for WAIT_SYNC state. */
++ if (is_eop) {
++ if (odev->rx_parse_state == WAIT_SYNC) {
++ odev->rx_parse_state = WAIT_IP;
++ odev->rx_buf_size = 0;
++ odev->rx_buf_missing = sizeof(struct iphdr);
++ }
++ }
++}
++
++/* Moving data from usb to kernel (in interrupt state) */
++static void read_bulk_callback(struct urb *urb)
++{
++ struct hso_net *odev = urb->context;
++ struct net_device *net;
++ int result;
++ int status = urb->status;
++
++ /* is al ok? (Filip: Who's Al ?) */
++ if (status) {
++ log_usb_status(status, __func__);
++ return;
++ }
++
++ /* Sanity check */
++ if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) {
++ D1("BULK IN callback but driver is not active!");
++ return;
++ }
++ usb_mark_last_busy(urb->dev);
++
++ net = odev->net;
++
++ if (!netif_device_present(net)) {
++ /* Somebody killed our network interface... */
++ return;
++ }
++
++ if (odev->parent->port_spec & HSO_INFO_CRC_BUG) {
++ u32 rest;
++ u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF };
++ rest = urb->actual_length % odev->in_endp->wMaxPacketSize;
++ if (((rest == 5) || (rest == 6))
++ && !memcmp(((u8 *) urb->transfer_buffer) +
++ urb->actual_length - 4, crc_check, 4)) {
++ urb->actual_length -= 4;
++ }
++ }
++
++ /* do we even have a packet? */
++ if (urb->actual_length) {
++ /* Handle the IP stream, add header and push it onto network
++ * stack if the packet is complete. */
++ spin_lock(&odev->net_lock);
++ packetizeRx(odev, urb->transfer_buffer, urb->actual_length,
++ (urb->transfer_buffer_length >
++ urb->actual_length) ? 1 : 0);
++ spin_unlock(&odev->net_lock);
++ }
++
++ /* We are done with this URB, resubmit it. Prep the USB to wait for
++ * another frame. Reuse same as received. */
++ usb_fill_bulk_urb(urb,
++ odev->parent->usb,
++ usb_rcvbulkpipe(odev->parent->usb,
++ odev->in_endp->
++ bEndpointAddress & 0x7F),
++ urb->transfer_buffer, MUX_BULK_RX_BUF_SIZE,
++ read_bulk_callback, odev);
++
++ /* Give this to the USB subsystem so it can tell us when more data
++ * arrives. */
++ result = usb_submit_urb(urb, GFP_ATOMIC);
++ if (result)
++ dev_warn(&odev->parent->interface->dev,
++ "%s failed submit mux_bulk_rx_urb %d", __func__,
++ result);
++}
++
++/* Serial driver functions */
++
++static void _hso_serial_set_termios(struct tty_struct *tty,
++ struct ktermios *old)
++{
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ struct ktermios *termios;
++
++ if ((!tty) || (!tty->termios) || (!serial)) {
++ printk(KERN_ERR "%s: no tty structures", __func__);
++ return;
++ }
++
++ D4("port %d", serial->minor);
++
++ /*
++ * The default requirements for this device are:
++ */
++ termios = tty->termios;
++ termios->c_iflag &=
++ ~(IGNBRK /* disable ignore break */
++ | BRKINT /* disable break causes interrupt */
++ | PARMRK /* disable mark parity errors */
++ | ISTRIP /* disable clear high bit of input characters */
++ | INLCR /* disable translate NL to CR */
++ | IGNCR /* disable ignore CR */
++ | ICRNL /* disable translate CR to NL */
++ | IXON); /* disable enable XON/XOFF flow control */
++
++ /* disable postprocess output characters */
++ termios->c_oflag &= ~OPOST;
++
++ termios->c_lflag &=
++ ~(ECHO /* disable echo input characters */
++ | ECHONL /* disable echo new line */
++ | ICANON /* disable erase, kill, werase, and rprnt
++ special characters */
++ | ISIG /* disable interrupt, quit, and suspend special
++ characters */
++ | IEXTEN); /* disable non-POSIX special characters */
++
++ termios->c_cflag &=
++ ~(CSIZE /* no size */
++ | PARENB /* disable parity bit */
++ | CBAUD /* clear current baud rate */
++ | CBAUDEX); /* clear current buad rate */
++
++ termios->c_cflag |= CS8; /* character size 8 bits */
++
++ /* baud rate 115200 */
++ tty_encode_baud_rate(serial->tty, 115200, 115200);
++
++ /*
++ * Force low_latency on; otherwise the pushes are scheduled;
++ * this is bad as it opens up the possibility of dropping bytes
++ * on the floor. We don't want to drop bytes on the floor. :)
++ */
++ serial->tty->low_latency = 1;
++ return;
++}
++
++/* open the requested serial port */
++static int hso_serial_open(struct tty_struct *tty, struct file *filp)
++{
++ struct hso_serial *serial = get_serial_by_index(tty->index);
++ int result;
++
++ /* sanity check */
++ if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) {
++ tty->driver_data = NULL;
++ D1("Failed to open port");
++ return -ENODEV;
++ }
++
++ mutex_lock(&serial->parent->mutex);
++ result = usb_autopm_get_interface(serial->parent->interface);
++ if (result < 0)
++ goto err_out;
++
++ D1("Opening %d", serial->minor);
++ kref_get(&serial->parent->ref);
++
++ /* setup */
++ tty->driver_data = serial;
++ serial->tty = tty;
++
++ /* check for port allready opened, if not set the termios */
++ serial->open_count++;
++ if (serial->open_count == 1) {
++ tty->low_latency = 1;
++ serial->flags = 0;
++ /* Force default termio settings */
++ _hso_serial_set_termios(tty, NULL);
++ result = hso_start_serial_device(serial->parent, GFP_KERNEL);
++ if (result) {
++ hso_stop_serial_device(serial->parent);
++ serial->open_count--;
++ kref_put(&serial->parent->ref, hso_serial_ref_free);
++ }
++ } else {
++ D1("Port was already open");
++ }
++
++ usb_autopm_put_interface(serial->parent->interface);
++
++ /* done */
++ if (result)
++ hso_serial_tiocmset(tty, NULL, TIOCM_RTS | TIOCM_DTR, 0);
++err_out:
++ mutex_unlock(&serial->parent->mutex);
++ return result;
++}
++
++/* close the requested serial port */
++static void hso_serial_close(struct tty_struct *tty, struct file *filp)
++{
++ struct hso_serial *serial = tty->driver_data;
++ u8 usb_gone;
++
++ D1("Closing serial port");
++
++ mutex_lock(&serial->parent->mutex);
++ usb_gone = serial->parent->usb_gone;
++
++ if (!usb_gone)
++ usb_autopm_get_interface(serial->parent->interface);
++
++ /* reset the rts and dtr */
++ /* do the actual close */
++ serial->open_count--;
++ if (serial->open_count <= 0) {
++ kref_put(&serial->parent->ref, hso_serial_ref_free);
++ serial->open_count = 0;
++ if (serial->tty) {
++ serial->tty->driver_data = NULL;
++ serial->tty = NULL;
++ }
++ if (!usb_gone)
++ hso_stop_serial_device(serial->parent);
++ }
++ if (!usb_gone)
++ usb_autopm_put_interface(serial->parent->interface);
++ mutex_unlock(&serial->parent->mutex);
++}
++
++/* close the requested serial port */
++static int hso_serial_write(struct tty_struct *tty, const unsigned char *buf,
++ int count)
++{
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ int space, tx_bytes;
++ unsigned long flags;
++
++ /* sanity check */
++ if (serial == NULL) {
++ printk(KERN_ERR "%s: serial is NULL\n", __func__);
++ return -ENODEV;
++ }
++
++ spin_lock_irqsave(&serial->serial_lock, flags);
++
++ space = serial->tx_data_length - serial->tx_buffer_count;
++ tx_bytes = (count < space) ? count : space;
++
++ if (!tx_bytes)
++ goto out;
++
++ memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes);
++ serial->tx_buffer_count += tx_bytes;
++
++out:
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++
++ hso_kick_transmit(serial);
++ /* done */
++ return tx_bytes;
++}
++
++/* how much room is there for writing */
++static int hso_serial_write_room(struct tty_struct *tty)
++{
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ int room;
++ unsigned long flags;
++
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ room = serial->tx_data_length - serial->tx_buffer_count;
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++
++ /* return free room */
++ return room;
++}
++
++/* setup the term */
++static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old)
++{
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ unsigned long flags;
++
++ if (old)
++ D5("Termios called with: cflags new[%d] - old[%d]",
++ tty->termios->c_cflag, old->c_cflag);
++
++ /* the actual setup */
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ if (serial->open_count)
++ _hso_serial_set_termios(tty, old);
++ else
++ tty->termios = old;
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++
++ /* done */
++ return;
++}
++
++/* how many characters in the buffer */
++static int hso_serial_chars_in_buffer(struct tty_struct *tty)
++{
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ int chars;
++ unsigned long flags;
++
++ /* sanity check */
++ if (serial == NULL)
++ return 0;
++
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ chars = serial->tx_buffer_count;
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++
++ return chars;
++}
++
++static int hso_serial_tiocmget(struct tty_struct *tty, struct file *file)
++{
++ unsigned int value;
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ unsigned long flags;
++
++ /* sanity check */
++ if (!serial) {
++ D1("no tty structures");
++ return -EINVAL;
++ }
++
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ value = ((serial->rts_state) ? TIOCM_RTS : 0) |
++ ((serial->dtr_state) ? TIOCM_DTR : 0);
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++
++ return value;
++}
++
++static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file,
++ unsigned int set, unsigned int clear)
++{
++ int val = 0;
++ unsigned long flags;
++ int if_num;
++ struct hso_serial *serial = get_serial_by_tty(tty);
++
++ /* sanity check */
++ if (!serial) {
++ D1("no tty structures");
++ return -EINVAL;
++ }
++ if_num = serial->parent->interface->altsetting->desc.bInterfaceNumber;
++
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ if (set & TIOCM_RTS)
++ serial->rts_state = 1;
++ if (set & TIOCM_DTR)
++ serial->dtr_state = 1;
++
++ if (clear & TIOCM_RTS)
++ serial->rts_state = 0;
++ if (clear & TIOCM_DTR)
++ serial->dtr_state = 0;
++
++ if (serial->dtr_state)
++ val |= 0x01;
++ if (serial->rts_state)
++ val |= 0x02;
++
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++
++ return usb_control_msg(serial->parent->usb,
++ usb_rcvctrlpipe(serial->parent->usb, 0), 0x22,
++ 0x21, val, if_num, NULL, 0,
++ USB_CTRL_SET_TIMEOUT);
++}
++
++/* starts a transmit */
++static void hso_kick_transmit(struct hso_serial *serial)
++{
++ u8 *temp;
++ unsigned long flags;
++ int res;
++
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ if (!serial->tx_buffer_count)
++ goto out;
++
++ if (serial->tx_urb_used)
++ goto out;
++
++ /* Wakeup USB interface if necessary */
++ if (hso_get_activity(serial->parent) == -EAGAIN)
++ goto out;
++
++ /* Switch pointers around to avoid memcpy */
++ temp = serial->tx_buffer;
++ serial->tx_buffer = serial->tx_data;
++ serial->tx_data = temp;
++ serial->tx_data_count = serial->tx_buffer_count;
++ serial->tx_buffer_count = 0;
++
++ /* If temp is set, it means we switched buffers */
++ if (temp && serial->write_data) {
++ res = serial->write_data(serial);
++ if (res >= 0)
++ serial->tx_urb_used = 1;
++ }
++out:
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++}
++
++/* make a request (for reading and writing data to muxed serial port) */
++static int mux_device_request(struct hso_serial *serial, u8 type, u16 port,
++ struct urb *ctrl_urb,
++ struct usb_ctrlrequest *ctrl_req,
++ u8 *ctrl_urb_data, u32 size)
++{
++ int result;
++ int pipe;
++
++ /* Sanity check */
++ if (!serial || !ctrl_urb || !ctrl_req) {
++ printk(KERN_ERR "%s: Wrong arguments\n", __func__);
++ return -EINVAL;
++ }
++
++ /* initialize */
++ ctrl_req->wValue = 0;
++ ctrl_req->wIndex = hso_port_to_mux(port);
++ ctrl_req->wLength = size;
++
++ if (type == USB_CDC_GET_ENCAPSULATED_RESPONSE) {
++ /* Reading command */
++ ctrl_req->bRequestType = USB_DIR_IN |
++ USB_TYPE_OPTION_VENDOR |
++ USB_RECIP_INTERFACE;
++ ctrl_req->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE;
++ pipe = usb_rcvctrlpipe(serial->parent->usb, 0);
++ } else {
++ /* Writing command */
++ ctrl_req->bRequestType = USB_DIR_OUT |
++ USB_TYPE_OPTION_VENDOR |
++ USB_RECIP_INTERFACE;
++ ctrl_req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND;
++ pipe = usb_sndctrlpipe(serial->parent->usb, 0);
++ }
++ /* syslog */
++ D2("%s command (%02x) len: %d, port: %d",
++ type == USB_CDC_GET_ENCAPSULATED_RESPONSE ? "Read" : "Write",
++ ctrl_req->bRequestType, ctrl_req->wLength, port);
++
++ /* Load ctrl urb */
++ ctrl_urb->transfer_flags = 0;
++ usb_fill_control_urb(ctrl_urb,
++ serial->parent->usb,
++ pipe,
++ (u8 *) ctrl_req,
++ ctrl_urb_data, size, ctrl_callback, serial);
++ /* Send it on merry way */
++ result = usb_submit_urb(ctrl_urb, GFP_ATOMIC);
++ if (result) {
++ dev_err(&ctrl_urb->dev->dev,
++ "%s failed submit ctrl_urb %d type %d", __func__,
++ result, type);
++ return result;
++ }
++
++ /* done */
++ return size;
++}
++
++/* called by intr_callback when read occurs */
++static int hso_mux_serial_read(struct hso_serial *serial)
++{
++ if (!serial)
++ return -EINVAL;
++
++ /* clean data */
++ memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE);
++ /* make the request */
++
++ if (serial->num_rx_urbs != 1) {
++ dev_err(&serial->parent->interface->dev,
++ "ERROR: mux'd reads with multiple buffers "
++ "not possible\n");
++ return 0;
++ }
++ return mux_device_request(serial,
++ USB_CDC_GET_ENCAPSULATED_RESPONSE,
++ serial->parent->port_spec & HSO_PORT_MASK,
++ serial->rx_urb[0],
++ &serial->ctrl_req_rx,
++ serial->rx_data[0], serial->rx_data_length);
++}
++
++/* used for muxed serial port callback (muxed serial read) */
++static void intr_callback(struct urb *urb)
++{
++ struct hso_shared_int *shared_int = urb->context;
++ struct hso_serial *serial;
++ unsigned char *port_req;
++ int status = urb->status;
++ int i;
++
++ usb_mark_last_busy(urb->dev);
++
++ /* sanity check */
++ if (!shared_int)
++ return;
++
++ /* status check */
++ if (status) {
++ log_usb_status(status, __func__);
++ return;
++ }
++ D4("\n--- Got intr callback 0x%02X ---", status);
++
++ /* what request? */
++ port_req = urb->transfer_buffer;
++ D4(" port_req = 0x%.2X\n", *port_req);
++ /* loop over all muxed ports to find the one sending this */
++ for (i = 0; i < 8; i++) {
++ /* max 8 channels on MUX */
++ if (*port_req & (1 << i)) {
++ serial = get_serial_by_shared_int_and_type(shared_int,
++ (1 << i));
++ if (serial != NULL) {
++ D1("Pending read interrupt on port %d\n", i);
++ if (!test_and_set_bit(HSO_SERIAL_FLAG_RX_SENT,
++ &serial->flags)) {
++ /* Setup and send a ctrl req read on
++ * port i */
++ hso_mux_serial_read(serial);
++ } else {
++ D1("Already pending a read on "
++ "port %d\n", i);
++ }
++ }
++ }
++ }
++ /* Resubmit interrupt urb */
++ hso_mux_submit_intr_urb(shared_int, urb->dev, GFP_ATOMIC);
++}
++
++/* called for writing to muxed serial port */
++static int hso_mux_serial_write_data(struct hso_serial *serial)
++{
++ if (NULL == serial)
++ return -EINVAL;
++
++ return mux_device_request(serial,
++ USB_CDC_SEND_ENCAPSULATED_COMMAND,
++ serial->parent->port_spec & HSO_PORT_MASK,
++ serial->tx_urb,
++ &serial->ctrl_req_tx,
++ serial->tx_data, serial->tx_data_count);
++}
++
++/* write callback for Diag and CS port */
++static void hso_std_serial_write_bulk_callback(struct urb *urb)
++{
++ struct hso_serial *serial = urb->context;
++ int status = urb->status;
++
++ /* sanity check */
++ if (!serial) {
++ D1("serial == NULL");
++ return;
++ }
++
++ spin_lock(&serial->serial_lock);
++ serial->tx_urb_used = 0;
++ spin_unlock(&serial->serial_lock);
++ if (status) {
++ log_usb_status(status, __func__);
++ return;
++ }
++ hso_put_activity(serial->parent);
++ tty_wakeup(serial->tty);
++ hso_kick_transmit(serial);
++
++ D1(" ");
++ return;
++}
++
++/* called for writing diag or CS serial port */
++static int hso_std_serial_write_data(struct hso_serial *serial)
++{
++ int count = serial->tx_data_count;
++ int result;
++
++ usb_fill_bulk_urb(serial->tx_urb,
++ serial->parent->usb,
++ usb_sndbulkpipe(serial->parent->usb,
++ serial->out_endp->
++ bEndpointAddress & 0x7F),
++ serial->tx_data, serial->tx_data_count,
++ hso_std_serial_write_bulk_callback, serial);
++
++ result = usb_submit_urb(serial->tx_urb, GFP_ATOMIC);
++ if (result) {
++ dev_warn(&serial->parent->usb->dev,
++ "Failed to submit urb - res %d\n", result);
++ return result;
++ }
++
++ return count;
++}
++
++/* callback after read or write on muxed serial port */
++static void ctrl_callback(struct urb *urb)
++{
++ struct hso_serial *serial = urb->context;
++ struct usb_ctrlrequest *req;
++ int status = urb->status;
++
++ /* sanity check */
++ if (!serial)
++ return;
++
++ spin_lock(&serial->serial_lock);
++ serial->tx_urb_used = 0;
++ spin_unlock(&serial->serial_lock);
++ if (status) {
++ log_usb_status(status, __func__);
++ return;
++ }
++
++ /* what request? */
++ req = (struct usb_ctrlrequest *)(urb->setup_packet);
++ D4("\n--- Got muxed ctrl callback 0x%02X ---", status);
++ D4("Actual length of urb = %d\n", urb->actual_length);
++ DUMP1(urb->transfer_buffer, urb->actual_length);
++
++ if (req->bRequestType ==
++ (USB_DIR_IN | USB_TYPE_OPTION_VENDOR | USB_RECIP_INTERFACE)) {
++ /* response to a read command */
++ if (serial->open_count > 0) {
++ /* handle RX data the normal way */
++ put_rxbuf_data(urb, serial);
++ }
++
++ /* Re issue a read as long as we receive data. */
++ if (urb->actual_length != 0)
++ hso_mux_serial_read(serial);
++ else
++ clear_bit(HSO_SERIAL_FLAG_RX_SENT, &serial->flags);
++ } else {
++ hso_put_activity(serial->parent);
++ tty_wakeup(serial->tty);
++ /* response to a write command */
++ hso_kick_transmit(serial);
++ }
++}
++
++/* handle RX data for serial port */
++static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial)
++{
++ struct tty_struct *tty = serial->tty;
++
++ /* Sanity check */
++ if (urb == NULL || serial == NULL) {
++ D1("serial = NULL");
++ return;
++ }
++
++ /* Push data to tty */
++ if (tty && urb->actual_length) {
++ D1("data to push to tty");
++ tty_insert_flip_string(tty, urb->transfer_buffer,
++ urb->actual_length);
++ tty_flip_buffer_push(tty);
++ }
++}
++
++/* read callback for Diag and CS port */
++static void hso_std_serial_read_bulk_callback(struct urb *urb)
++{
++ struct hso_serial *serial = urb->context;
++ int result;
++ int status = urb->status;
++
++ /* sanity check */
++ if (!serial) {
++ D1("serial == NULL");
++ return;
++ } else if (status) {
++ log_usb_status(status, __func__);
++ return;
++ }
++
++ D4("\n--- Got serial_read_bulk callback %02x ---", status);
++ D1("Actual length = %d\n", urb->actual_length);
++ DUMP1(urb->transfer_buffer, urb->actual_length);
++
++ /* Anyone listening? */
++ if (serial->open_count == 0)
++ return;
++
++ if (status == 0) {
++ if (serial->parent->port_spec & HSO_INFO_CRC_BUG) {
++ u32 rest;
++ u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF };
++ rest =
++ urb->actual_length %
++ serial->in_endp->wMaxPacketSize;
++ if (((rest == 5) || (rest == 6))
++ && !memcmp(((u8 *) urb->transfer_buffer) +
++ urb->actual_length - 4, crc_check, 4)) {
++ urb->actual_length -= 4;
++ }
++ }
++ /* Valid data, handle RX data */
++ put_rxbuf_data(urb, serial);
++ } else if (status == -ENOENT || status == -ECONNRESET) {
++ /* Unlinked - check for throttled port. */
++ D2("Port %d, successfully unlinked urb", serial->minor);
++ } else {
++ D2("Port %d, status = %d for read urb", serial->minor, status);
++ return;
++ }
++
++ usb_mark_last_busy(urb->dev);
++
++ /* We are done with this URB, resubmit it. Prep the USB to wait for
++ * another frame */
++ usb_fill_bulk_urb(urb, serial->parent->usb,
++ usb_rcvbulkpipe(serial->parent->usb,
++ serial->in_endp->
++ bEndpointAddress & 0x7F),
++ urb->transfer_buffer, serial->rx_data_length,
++ hso_std_serial_read_bulk_callback, serial);
++ /* Give this to the USB subsystem so it can tell us when more data
++ * arrives. */
++ result = usb_submit_urb(urb, GFP_ATOMIC);
++ if (result) {
++ dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d",
++ __func__, result);
++ }
++}
++
++/* Base driver functions */
++
++static void hso_log_port(struct hso_device *hso_dev)
++{
++ char *port_type;
++ char port_dev[20];
++
++ switch (hso_dev->port_spec & HSO_PORT_MASK) {
++ case HSO_PORT_CONTROL:
++ port_type = "Control";
++ break;
++ case HSO_PORT_APP:
++ port_type = "Application";
++ break;
++ case HSO_PORT_GPS:
++ port_type = "GPS";
++ break;
++ case HSO_PORT_GPS_CONTROL:
++ port_type = "GPS control";
++ break;
++ case HSO_PORT_APP2:
++ port_type = "Application2";
++ break;
++ case HSO_PORT_PCSC:
++ port_type = "PCSC";
++ break;
++ case HSO_PORT_DIAG:
++ port_type = "Diagnostic";
++ break;
++ case HSO_PORT_DIAG2:
++ port_type = "Diagnostic2";
++ break;
++ case HSO_PORT_MODEM:
++ port_type = "Modem";
++ break;
++ case HSO_PORT_NETWORK:
++ port_type = "Network";
++ break;
++ default:
++ port_type = "Unknown";
++ break;
++ }
++ if ((hso_dev->port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
++ sprintf(port_dev, "%s", dev2net(hso_dev)->net->name);
++ } else
++ sprintf(port_dev, "/dev/%s%d", tty_filename,
++ dev2ser(hso_dev)->minor);
++
++ dev_dbg(&hso_dev->interface->dev, "HSO: Found %s port %s\n",
++ port_type, port_dev);
++}
++
++static int hso_start_net_device(struct hso_device *hso_dev)
++{
++ int i, result = 0;
++ struct hso_net *hso_net = dev2net(hso_dev);
++
++ if (!hso_net)
++ return -ENODEV;
++
++ /* send URBs for all read buffers */
++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
++
++ /* Prep a receive URB */
++ usb_fill_bulk_urb(hso_net->mux_bulk_rx_urb_pool[i],
++ hso_dev->usb,
++ usb_rcvbulkpipe(hso_dev->usb,
++ hso_net->in_endp->
++ bEndpointAddress & 0x7F),
++ hso_net->mux_bulk_rx_buf_pool[i],
++ MUX_BULK_RX_BUF_SIZE, read_bulk_callback,
++ hso_net);
++
++ /* Put it out there so the device can send us stuff */
++ result = usb_submit_urb(hso_net->mux_bulk_rx_urb_pool[i],
++ GFP_NOIO);
++ if (result)
++ dev_warn(&hso_dev->usb->dev,
++ "%s failed mux_bulk_rx_urb[%d] %d\n", __func__,
++ i, result);
++ }
++
++ return result;
++}
++
++static int hso_stop_net_device(struct hso_device *hso_dev)
++{
++ int i;
++ struct hso_net *hso_net = dev2net(hso_dev);
++
++ if (!hso_net)
++ return -ENODEV;
++
++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
++ if (hso_net->mux_bulk_rx_urb_pool[i])
++ usb_kill_urb(hso_net->mux_bulk_rx_urb_pool[i]);
++
++ }
++ if (hso_net->mux_bulk_tx_urb)
++ usb_kill_urb(hso_net->mux_bulk_tx_urb);
++
++ return 0;
++}
++
++static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags)
++{
++ int i, result = 0;
++ struct hso_serial *serial = dev2ser(hso_dev);
++
++ if (!serial)
++ return -ENODEV;
++
++ /* If it is not the MUX port fill in and submit a bulk urb (already
++ * allocated in hso_serial_start) */
++ if (!(serial->parent->port_spec & HSO_INTF_MUX)) {
++ for (i = 0; i < serial->num_rx_urbs; i++) {
++ usb_fill_bulk_urb(serial->rx_urb[i],
++ serial->parent->usb,
++ usb_rcvbulkpipe(serial->parent->usb,
++ serial->in_endp->
++ bEndpointAddress &
++ 0x7F),
++ serial->rx_data[i],
++ serial->rx_data_length,
++ hso_std_serial_read_bulk_callback,
++ serial);
++ result = usb_submit_urb(serial->rx_urb[i], flags);
++ if (result) {
++ dev_warn(&serial->parent->usb->dev,
++ "Failed to submit urb - res %d\n",
++ result);
++ break;
++ }
++ }
++ } else {
++ mutex_lock(&serial->shared_int->shared_int_lock);
++ if (!serial->shared_int->use_count) {
++ result =
++ hso_mux_submit_intr_urb(serial->shared_int,
++ hso_dev->usb, flags);
++ }
++ serial->shared_int->use_count++;
++ mutex_unlock(&serial->shared_int->shared_int_lock);
++ }
++
++ return result;
++}
++
++static int hso_stop_serial_device(struct hso_device *hso_dev)
++{
++ int i;
++ struct hso_serial *serial = dev2ser(hso_dev);
++
++ if (!serial)
++ return -ENODEV;
++
++ for (i = 0; i < serial->num_rx_urbs; i++) {
++ if (serial->rx_urb[i])
++ usb_kill_urb(serial->rx_urb[i]);
++ }
++
++ if (serial->tx_urb)
++ usb_kill_urb(serial->tx_urb);
++
++ if (serial->shared_int) {
++ mutex_lock(&serial->shared_int->shared_int_lock);
++ if (serial->shared_int->use_count &&
++ (--serial->shared_int->use_count == 0)) {
++ struct urb *urb;
++
++ urb = serial->shared_int->shared_intr_urb;
++ if (urb)
++ usb_kill_urb(urb);
++ }
++ mutex_unlock(&serial->shared_int->shared_int_lock);
++ }
++
++ return 0;
++}
++
++static void hso_serial_common_free(struct hso_serial *serial)
++{
++ int i;
++
++ if (serial->parent->dev)
++ device_remove_file(serial->parent->dev, &dev_attr_hsotype);
++
++ tty_unregister_device(tty_drv, serial->minor);
++
++ for (i = 0; i < serial->num_rx_urbs; i++) {
++ /* unlink and free RX URB */
++ usb_free_urb(serial->rx_urb[i]);
++ /* free the RX buffer */
++ kfree(serial->rx_data[i]);
++ }
++
++ /* unlink and free TX URB */
++ usb_free_urb(serial->tx_urb);
++ kfree(serial->tx_data);
++}
++
++static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
++ int rx_size, int tx_size)
++{
++ struct device *dev;
++ int minor;
++ int i;
++
++ minor = get_free_serial_index();
++ if (minor < 0)
++ goto exit;
++
++ /* register our minor number */
++ serial->parent->dev = tty_register_device(tty_drv, minor,
++ &serial->parent->interface->dev);
++ dev = serial->parent->dev;
++ dev->driver_data = serial->parent;
++ i = device_create_file(dev, &dev_attr_hsotype);
++
++ /* fill in specific data for later use */
++ serial->minor = minor;
++ serial->magic = HSO_SERIAL_MAGIC;
++ spin_lock_init(&serial->serial_lock);
++ serial->num_rx_urbs = num_urbs;
++
++ /* RX, allocate urb and initialize */
++
++ /* prepare our RX buffer */
++ serial->rx_data_length = rx_size;
++ for (i = 0; i < serial->num_rx_urbs; i++) {
++ serial->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
++ if (!serial->rx_urb[i]) {
++ dev_err(dev, "Could not allocate urb?\n");
++ goto exit;
++ }
++ serial->rx_urb[i]->transfer_buffer = NULL;
++ serial->rx_urb[i]->transfer_buffer_length = 0;
++ serial->rx_data[i] = kzalloc(serial->rx_data_length,
++ GFP_KERNEL);
++ if (!serial->rx_data[i]) {
++ dev_err(dev, "%s - Out of memory\n", __func__);
++ goto exit;
++ }
++ }
++
++ /* TX, allocate urb and initialize */
++ serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
++ if (!serial->tx_urb) {
++ dev_err(dev, "Could not allocate urb?\n");
++ goto exit;
++ }
++ serial->tx_urb->transfer_buffer = NULL;
++ serial->tx_urb->transfer_buffer_length = 0;
++ /* prepare our TX buffer */
++ serial->tx_data_count = 0;
++ serial->tx_buffer_count = 0;
++ serial->tx_data_length = tx_size;
++ serial->tx_data = kzalloc(serial->tx_data_length, GFP_KERNEL);
++ if (!serial->tx_data) {
++ dev_err(dev, "%s - Out of memory", __func__);
++ goto exit;
++ }
++ serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL);
++ if (!serial->tx_buffer) {
++ dev_err(dev, "%s - Out of memory", __func__);
++ goto exit;
++ }
++
++ return 0;
++exit:
++ hso_serial_common_free(serial);
++ return -1;
++}
++
++/* Frees a general hso device */
++static void hso_free_device(struct hso_device *hso_dev)
++{
++ kfree(hso_dev);
++}
++
++/* Creates a general hso device */
++static struct hso_device *hso_create_device(struct usb_interface *intf,
++ int port_spec)
++{
++ struct hso_device *hso_dev;
++
++ hso_dev = kzalloc(sizeof(*hso_dev), GFP_ATOMIC);
++ if (!hso_dev)
++ return NULL;
++
++ hso_dev->port_spec = port_spec;
++ hso_dev->usb = interface_to_usbdev(intf);
++ hso_dev->interface = intf;
++ kref_init(&hso_dev->ref);
++ mutex_init(&hso_dev->mutex);
++
++ INIT_WORK(&hso_dev->async_get_intf, async_get_intf);
++ INIT_WORK(&hso_dev->async_put_intf, async_put_intf);
++
++ return hso_dev;
++}
++
++/* Removes a network device in the network device table */
++static int remove_net_device(struct hso_device *hso_dev)
++{
++ int i;
++
++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
++ if (network_table[i] == hso_dev) {
++ network_table[i] = NULL;
++ break;
++ }
++ }
++ if (i == HSO_MAX_NET_DEVICES)
++ return -1;
++ return 0;
++}
++
++/* Frees our network device */
++static void hso_free_net_device(struct hso_device *hso_dev)
++{
++ int i;
++ struct hso_net *hso_net = dev2net(hso_dev);
++
++ if (!hso_net)
++ return;
++
++ /* start freeing */
++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
++ usb_free_urb(hso_net->mux_bulk_rx_urb_pool[i]);
++ kfree(hso_net->mux_bulk_rx_buf_pool[i]);
++ }
++ usb_free_urb(hso_net->mux_bulk_tx_urb);
++ kfree(hso_net->mux_bulk_tx_buf);
++
++ remove_net_device(hso_net->parent);
++
++ if (hso_net->net) {
++ unregister_netdev(hso_net->net);
++ free_netdev(hso_net->net);
++ }
++
++ hso_free_device(hso_dev);
++}
++
++/* initialize the network interface */
++static void hso_net_init(struct net_device *net)
++{
++ struct hso_net *hso_net = netdev_priv(net);
++
++ D1("sizeof hso_net is %d", (int)sizeof(*hso_net));
++
++ /* fill in the other fields */
++ net->open = hso_net_open;
++ net->stop = hso_net_close;
++ net->hard_start_xmit = hso_net_start_xmit;
++ net->tx_timeout = hso_net_tx_timeout;
++ net->watchdog_timeo = HSO_NET_TX_TIMEOUT;
++ net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
++ net->type = ARPHRD_NONE;
++ net->mtu = DEFAULT_MTU - 14;
++ net->tx_queue_len = 10;
++ SET_ETHTOOL_OPS(net, &ops);
++
++ /* and initialize the semaphore */
++ spin_lock_init(&hso_net->net_lock);
++}
++
++/* Adds a network device in the network device table */
++static int add_net_device(struct hso_device *hso_dev)
++{
++ int i;
++
++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
++ if (network_table[i] == NULL) {
++ network_table[i] = hso_dev;
++ break;
++ }
++ }
++ if (i == HSO_MAX_NET_DEVICES)
++ return -1;
++ return 0;
++}
++
++static int hso_radio_toggle(void *data, enum rfkill_state state)
++{
++ struct hso_device *hso_dev = data;
++ int enabled = (state == RFKILL_STATE_ON);
++ int rv;
++
++ mutex_lock(&hso_dev->mutex);
++ if (hso_dev->usb_gone)
++ rv = 0;
++ else
++ rv = usb_control_msg(hso_dev->usb, usb_rcvctrlpipe(hso_dev->usb, 0),
++ enabled ? 0x82 : 0x81, 0x40, 0, 0, NULL, 0,
++ USB_CTRL_SET_TIMEOUT);
++ mutex_unlock(&hso_dev->mutex);
++ return rv;
++}
++
++/* Creates and sets up everything for rfkill */
++static void hso_create_rfkill(struct hso_device *hso_dev,
++ struct usb_interface *interface)
++{
++ struct hso_net *hso_net = dev2net(hso_dev);
++ struct device *dev = hso_dev->dev;
++ char *rfkn;
++
++ hso_net->rfkill = rfkill_allocate(&interface_to_usbdev(interface)->dev,
++ RFKILL_TYPE_WLAN);
++ if (!hso_net->rfkill) {
++ dev_err(dev, "%s - Out of memory", __func__);
++ return;
++ }
++ rfkn = kzalloc(20, GFP_KERNEL);
++ if (!rfkn) {
++ rfkill_free(hso_net->rfkill);
++ dev_err(dev, "%s - Out of memory", __func__);
++ return;
++ }
++ snprintf(rfkn, 20, "hso-%d",
++ interface->altsetting->desc.bInterfaceNumber);
++ hso_net->rfkill->name = rfkn;
++ hso_net->rfkill->state = RFKILL_STATE_ON;
++ hso_net->rfkill->data = hso_dev;
++ hso_net->rfkill->toggle_radio = hso_radio_toggle;
++ if (rfkill_register(hso_net->rfkill) < 0) {
++ kfree(rfkn);
++ hso_net->rfkill->name = NULL;
++ rfkill_free(hso_net->rfkill);
++ dev_err(dev, "%s - Failed to register rfkill", __func__);
++ return;
++ }
++}
++
++/* Creates our network device */
++static struct hso_device *hso_create_net_device(struct usb_interface *interface)
++{
++ int result, i;
++ struct net_device *net;
++ struct hso_net *hso_net;
++ struct hso_device *hso_dev;
++
++ hso_dev = hso_create_device(interface, HSO_INTF_MUX | HSO_PORT_NETWORK);
++ if (!hso_dev)
++ return NULL;
++
++ /* allocate our network device, then we can put in our private data */
++ /* call hso_net_init to do the basic initialization */
++ net = alloc_netdev(sizeof(struct hso_net), "hso%d", hso_net_init);
++ if (!net) {
++ dev_err(&interface->dev, "Unable to create ethernet device\n");
++ goto exit;
++ }
++
++ hso_net = netdev_priv(net);
++
++ hso_dev->port_data.dev_net = hso_net;
++ hso_net->net = net;
++ hso_net->parent = hso_dev;
++
++ hso_net->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
++ USB_DIR_IN);
++ if (!hso_net->in_endp) {
++ dev_err(&interface->dev, "Can't find BULK IN endpoint\n");
++ goto exit;
++ }
++ hso_net->out_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
++ USB_DIR_OUT);
++ if (!hso_net->out_endp) {
++ dev_err(&interface->dev, "Can't find BULK OUT endpoint\n");
++ goto exit;
++ }
++ SET_NETDEV_DEV(net, &interface->dev);
++
++ /* registering our net device */
++ result = register_netdev(net);
++ if (result) {
++ dev_err(&interface->dev, "Failed to register device\n");
++ goto exit;
++ }
++
++ /* start allocating */
++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
++ hso_net->mux_bulk_rx_urb_pool[i] = usb_alloc_urb(0, GFP_KERNEL);
++ if (!hso_net->mux_bulk_rx_urb_pool[i]) {
++ dev_err(&interface->dev, "Could not allocate rx urb\n");
++ goto exit;
++ }
++ hso_net->mux_bulk_rx_buf_pool[i] = kzalloc(MUX_BULK_RX_BUF_SIZE,
++ GFP_KERNEL);
++ if (!hso_net->mux_bulk_rx_buf_pool[i]) {
++ dev_err(&interface->dev, "Could not allocate rx buf\n");
++ goto exit;
++ }
++ }
++ hso_net->mux_bulk_tx_urb = usb_alloc_urb(0, GFP_KERNEL);
++ if (!hso_net->mux_bulk_tx_urb) {
++ dev_err(&interface->dev, "Could not allocate tx urb\n");
++ goto exit;
++ }
++ hso_net->mux_bulk_tx_buf = kzalloc(MUX_BULK_TX_BUF_SIZE, GFP_KERNEL);
++ if (!hso_net->mux_bulk_tx_buf) {
++ dev_err(&interface->dev, "Could not allocate tx buf\n");
++ goto exit;
++ }
++
++ add_net_device(hso_dev);
++
++ hso_log_port(hso_dev);
++
++ hso_create_rfkill(hso_dev, interface);
++
++ return hso_dev;
++exit:
++ hso_free_net_device(hso_dev);
++ return NULL;
++}
++
++/* Frees an AT channel ( goes for both mux and non-mux ) */
++static void hso_free_serial_device(struct hso_device *hso_dev)
++{
++ struct hso_serial *serial = dev2ser(hso_dev);
++
++ if (!serial)
++ return;
++ set_serial_by_index(serial->minor, NULL);
++
++ hso_serial_common_free(serial);
++
++ if (serial->shared_int) {
++ mutex_lock(&serial->shared_int->shared_int_lock);
++ if (--serial->shared_int->ref_count == 0)
++ hso_free_shared_int(serial->shared_int);
++ else
++ mutex_unlock(&serial->shared_int->shared_int_lock);
++ }
++ kfree(serial);
++ hso_free_device(hso_dev);
++}
++
++/* Creates a bulk AT channel */
++static struct hso_device *hso_create_bulk_serial_device(
++ struct usb_interface *interface, int port)
++{
++ struct hso_device *hso_dev;
++ struct hso_serial *serial;
++ int num_urbs;
++
++ hso_dev = hso_create_device(interface, port);
++ if (!hso_dev)
++ return NULL;
++
++ serial = kzalloc(sizeof(*serial), GFP_KERNEL);
++ if (!serial)
++ goto exit;
++
++ serial->parent = hso_dev;
++ hso_dev->port_data.dev_serial = serial;
++
++ if (port & HSO_PORT_MODEM)
++ num_urbs = 2;
++ else
++ num_urbs = 1;
++
++ if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE,
++ BULK_URB_TX_SIZE))
++ goto exit;
++
++ serial->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK,
++ USB_DIR_IN);
++ if (!serial->in_endp) {
++ dev_err(&interface->dev, "Failed to find BULK IN ep\n");
++ goto exit;
++ }
++
++ if (!
++ (serial->out_endp =
++ hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) {
++ dev_err(&interface->dev, "Failed to find BULK IN ep\n");
++ goto exit;
++ }
++
++ serial->write_data = hso_std_serial_write_data;
++
++ /* and record this serial */
++ set_serial_by_index(serial->minor, serial);
++
++ /* setup the proc dirs and files if needed */
++ hso_log_port(hso_dev);
++
++ /* done, return it */
++ return hso_dev;
++exit:
++ if (hso_dev && serial)
++ hso_serial_common_free(serial);
++ kfree(serial);
++ hso_free_device(hso_dev);
++ return NULL;
++}
++
++/* Creates a multiplexed AT channel */
++static
++struct hso_device *hso_create_mux_serial_device(struct usb_interface *interface,
++ int port,
++ struct hso_shared_int *mux)
++{
++ struct hso_device *hso_dev;
++ struct hso_serial *serial;
++ int port_spec;
++
++ port_spec = HSO_INTF_MUX;
++ port_spec &= ~HSO_PORT_MASK;
++
++ port_spec |= hso_mux_to_port(port);
++ if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NO_PORT)
++ return NULL;
++
++ hso_dev = hso_create_device(interface, port_spec);
++ if (!hso_dev)
++ return NULL;
++
++ serial = kzalloc(sizeof(*serial), GFP_KERNEL);
++ if (!serial)
++ goto exit;
++
++ hso_dev->port_data.dev_serial = serial;
++ serial->parent = hso_dev;
++
++ if (hso_serial_common_create
++ (serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE))
++ goto exit;
++
++ serial->tx_data_length--;
++ serial->write_data = hso_mux_serial_write_data;
++
++ serial->shared_int = mux;
++ mutex_lock(&serial->shared_int->shared_int_lock);
++ serial->shared_int->ref_count++;
++ mutex_unlock(&serial->shared_int->shared_int_lock);
++
++ /* and record this serial */
++ set_serial_by_index(serial->minor, serial);
++
++ /* setup the proc dirs and files if needed */
++ hso_log_port(hso_dev);
++
++ /* done, return it */
++ return hso_dev;
++
++exit:
++ if (serial) {
++ tty_unregister_device(tty_drv, serial->minor);
++ kfree(serial);
++ }
++ if (hso_dev)
++ hso_free_device(hso_dev);
++ return NULL;
++
++}
++
++static void hso_free_shared_int(struct hso_shared_int *mux)
++{
++ usb_free_urb(mux->shared_intr_urb);
++ kfree(mux->shared_intr_buf);
++ mutex_unlock(&mux->shared_int_lock);
++ kfree(mux);
++}
++
++static
++struct hso_shared_int *hso_create_shared_int(struct usb_interface *interface)
++{
++ struct hso_shared_int *mux = kzalloc(sizeof(*mux), GFP_KERNEL);
++
++ if (!mux)
++ return NULL;
++
++ mux->intr_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_INT,
++ USB_DIR_IN);
++ if (!mux->intr_endp) {
++ dev_err(&interface->dev, "Can't find INT IN endpoint\n");
++ goto exit;
++ }
++
++ mux->shared_intr_urb = usb_alloc_urb(0, GFP_KERNEL);
++ if (!mux->shared_intr_urb) {
++ dev_err(&interface->dev, "Could not allocate intr urb?");
++ goto exit;
++ }
++ mux->shared_intr_buf = kzalloc(mux->intr_endp->wMaxPacketSize,
++ GFP_KERNEL);
++ if (!mux->shared_intr_buf) {
++ dev_err(&interface->dev, "Could not allocate intr buf?");
++ goto exit;
++ }
++
++ mutex_init(&mux->shared_int_lock);
++
++ return mux;
++
++exit:
++ kfree(mux->shared_intr_buf);
++ usb_free_urb(mux->shared_intr_urb);
++ kfree(mux);
++ return NULL;
++}
++
++/* Gets the port spec for a certain interface */
++static int hso_get_config_data(struct usb_interface *interface)
++{
++ struct usb_device *usbdev = interface_to_usbdev(interface);
++ u8 config_data[17];
++ u32 if_num = interface->altsetting->desc.bInterfaceNumber;
++ s32 result;
++
++ if (usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
++ 0x86, 0xC0, 0, 0, config_data, 17,
++ USB_CTRL_SET_TIMEOUT) != 0x11) {
++ return -EIO;
++ }
++
++ switch (config_data[if_num]) {
++ case 0x0:
++ result = 0;
++ break;
++ case 0x1:
++ result = HSO_PORT_DIAG;
++ break;
++ case 0x2:
++ result = HSO_PORT_GPS;
++ break;
++ case 0x3:
++ result = HSO_PORT_GPS_CONTROL;
++ break;
++ case 0x4:
++ result = HSO_PORT_APP;
++ break;
++ case 0x5:
++ result = HSO_PORT_APP2;
++ break;
++ case 0x6:
++ result = HSO_PORT_CONTROL;
++ break;
++ case 0x7:
++ result = HSO_PORT_NETWORK;
++ break;
++ case 0x8:
++ result = HSO_PORT_MODEM;
++ break;
++ case 0x9:
++ result = HSO_PORT_MSD;
++ break;
++ case 0xa:
++ result = HSO_PORT_PCSC;
++ break;
++ case 0xb:
++ result = HSO_PORT_VOICE;
++ break;
++ default:
++ result = 0;
++ }
++
++ if (result)
++ result |= HSO_INTF_BULK;
++
++ if (config_data[16] & 0x1)
++ result |= HSO_INFO_CRC_BUG;
++
++ return result;
++}
++
++/* called once for each interface upon device insertion */
++static int hso_probe(struct usb_interface *interface,
++ const struct usb_device_id *id)
++{
++ int mux, i, if_num, port_spec;
++ unsigned char port_mask;
++ struct hso_device *hso_dev = NULL;
++ struct hso_shared_int *shared_int;
++ struct hso_device *tmp_dev = NULL;
++
++ if_num = interface->altsetting->desc.bInterfaceNumber;
++
++ /* Get the interface/port specification from either driver_info or from
++ * the device itself */
++ if (id->driver_info)
++ port_spec = ((u32 *)(id->driver_info))[if_num];
++ else
++ port_spec = hso_get_config_data(interface);
++
++ if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) {
++ dev_err(&interface->dev, "Not our interface\n");
++ return -ENODEV;
++ }
++ /* Check if we need to switch to alt interfaces prior to port
++ * configuration */
++ if (interface->num_altsetting > 1)
++ usb_set_interface(interface_to_usbdev(interface), if_num, 1);
++ interface->needs_remote_wakeup = 1;
++
++ /* Allocate new hso device(s) */
++ switch (port_spec & HSO_INTF_MASK) {
++ case HSO_INTF_MUX:
++ if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
++ /* Create the network device */
++ if (!disable_net) {
++ hso_dev = hso_create_net_device(interface);
++ if (!hso_dev)
++ goto exit;
++ tmp_dev = hso_dev;
++ }
++ }
++
++ if (hso_get_mux_ports(interface, &port_mask))
++ /* TODO: de-allocate everything */
++ goto exit;
++
++ shared_int = hso_create_shared_int(interface);
++ if (!shared_int)
++ goto exit;
++
++ for (i = 1, mux = 0; i < 0x100; i = i << 1, mux++) {
++ if (port_mask & i) {
++ hso_dev = hso_create_mux_serial_device(
++ interface, i, shared_int);
++ if (!hso_dev)
++ goto exit;
++ }
++ }
++
++ if (tmp_dev)
++ hso_dev = tmp_dev;
++ break;
++
++ case HSO_INTF_BULK:
++ /* It's a regular bulk interface */
++ if (((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK)
++ && !disable_net)
++ hso_dev = hso_create_net_device(interface);
++ else
++ hso_dev =
++ hso_create_bulk_serial_device(interface, port_spec);
++ if (!hso_dev)
++ goto exit;
++ break;
++ default:
++ goto exit;
++ }
++
++ usb_driver_claim_interface(&hso_driver, interface, hso_dev);
++
++ /* save our data pointer in this device */
++ usb_set_intfdata(interface, hso_dev);
++
++ /* done */
++ return 0;
++exit:
++ hso_free_interface(interface);
++ return -ENODEV;
++}
++
++/* device removed, cleaning up */
++static void hso_disconnect(struct usb_interface *interface)
++{
++ hso_free_interface(interface);
++
++ /* remove reference of our private data */
++ usb_set_intfdata(interface, NULL);
++
++ usb_driver_release_interface(&hso_driver, interface);
++}
++
++static void async_get_intf(struct work_struct *data)
++{
++ struct hso_device *hso_dev =
++ container_of(data, struct hso_device, async_get_intf);
++ usb_autopm_get_interface(hso_dev->interface);
++}
++
++static void async_put_intf(struct work_struct *data)
++{
++ struct hso_device *hso_dev =
++ container_of(data, struct hso_device, async_put_intf);
++ usb_autopm_put_interface(hso_dev->interface);
++}
++
++static int hso_get_activity(struct hso_device *hso_dev)
++{
++ if (hso_dev->usb->state == USB_STATE_SUSPENDED) {
++ if (!hso_dev->is_active) {
++ hso_dev->is_active = 1;
++ schedule_work(&hso_dev->async_get_intf);
++ }
++ }
++
++ if (hso_dev->usb->state != USB_STATE_CONFIGURED)
++ return -EAGAIN;
++
++ usb_mark_last_busy(hso_dev->usb);
++
++ return 0;
++}
++
++static int hso_put_activity(struct hso_device *hso_dev)
++{
++ if (hso_dev->usb->state != USB_STATE_SUSPENDED) {
++ if (hso_dev->is_active) {
++ hso_dev->is_active = 0;
++ schedule_work(&hso_dev->async_put_intf);
++ return -EAGAIN;
++ }
++ }
++ hso_dev->is_active = 0;
++ return 0;
++}
++
++/* called by kernel when we need to suspend device */
++static int hso_suspend(struct usb_interface *iface, pm_message_t message)
++{
++ int i, result;
++
++ /* Stop all serial ports */
++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
++ if (serial_table[i] && (serial_table[i]->interface == iface)) {
++ result = hso_stop_serial_device(serial_table[i]);
++ if (result)
++ goto out;
++ }
++ }
++
++ /* Stop all network ports */
++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
++ if (network_table[i] &&
++ (network_table[i]->interface == iface)) {
++ result = hso_stop_net_device(network_table[i]);
++ if (result)
++ goto out;
++ }
++ }
++
++out:
++ return 0;
++}
++
++/* called by kernel when we need to resume device */
++static int hso_resume(struct usb_interface *iface)
++{
++ int i, result = 0;
++ struct hso_net *hso_net;
++
++ /* Start all serial ports */
++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
++ if (serial_table[i] && (serial_table[i]->interface == iface)) {
++ if (dev2ser(serial_table[i])->open_count) {
++ result =
++ hso_start_serial_device(serial_table[i], GFP_NOIO);
++ hso_kick_transmit(dev2ser(serial_table[i]));
++ if (result)
++ goto out;
++ }
++ }
++ }
++
++ /* Start all network ports */
++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
++ if (network_table[i] &&
++ (network_table[i]->interface == iface)) {
++ hso_net = dev2net(network_table[i]);
++ /* First transmit any lingering data, then restart the
++ * device. */
++ if (hso_net->skb_tx_buf) {
++ dev_dbg(&iface->dev,
++ "Transmitting lingering data\n");
++ hso_net_start_xmit(hso_net->skb_tx_buf,
++ hso_net->net);
++ }
++ result = hso_start_net_device(network_table[i]);
++ if (result)
++ goto out;
++ }
++ }
++
++out:
++ return result;
++}
++
++static void hso_serial_ref_free(struct kref *ref)
++{
++ struct hso_device *hso_dev = container_of(ref, struct hso_device, ref);
++
++ hso_free_serial_device(hso_dev);
++}
++
++static void hso_free_interface(struct usb_interface *interface)
++{
++ struct hso_serial *hso_dev;
++ int i;
++
++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
++ if (serial_table[i]
++ && (serial_table[i]->interface == interface)) {
++ hso_dev = dev2ser(serial_table[i]);
++ if (hso_dev->tty)
++ tty_hangup(hso_dev->tty);
++ mutex_lock(&hso_dev->parent->mutex);
++ hso_dev->parent->usb_gone = 1;
++ mutex_unlock(&hso_dev->parent->mutex);
++ kref_put(&serial_table[i]->ref, hso_serial_ref_free);
++ }
++ }
++
++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) {
++ if (network_table[i]
++ && (network_table[i]->interface == interface)) {
++ struct rfkill *rfk = dev2net(network_table[i])->rfkill;
++ /* hso_stop_net_device doesn't stop the net queue since
++ * traffic needs to start it again when suspended */
++ netif_stop_queue(dev2net(network_table[i])->net);
++ hso_stop_net_device(network_table[i]);
++ cancel_work_sync(&network_table[i]->async_put_intf);
++ cancel_work_sync(&network_table[i]->async_get_intf);
++ if(rfk)
++ rfkill_unregister(rfk);
++ hso_free_net_device(network_table[i]);
++ }
++ }
++}
++
++/* Helper functions */
++
++/* Get the endpoint ! */
++static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf,
++ int type, int dir)
++{
++ int i;
++ struct usb_host_interface *iface = intf->cur_altsetting;
++ struct usb_endpoint_descriptor *endp;
++
++ for (i = 0; i < iface->desc.bNumEndpoints; i++) {
++ endp = &iface->endpoint[i].desc;
++ if (((endp->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == dir) &&
++ ((endp->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == type))
++ return endp;
++ }
++
++ return NULL;
++}
++
++/* Get the byte that describes which ports are enabled */
++static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports)
++{
++ int i;
++ struct usb_host_interface *iface = intf->cur_altsetting;
++
++ if (iface->extralen == 3) {
++ *ports = iface->extra[2];
++ return 0;
++ }
++
++ for (i = 0; i < iface->desc.bNumEndpoints; i++) {
++ if (iface->endpoint[i].extralen == 3) {
++ *ports = iface->endpoint[i].extra[2];
++ return 0;
++ }
++ }
++
++ return -1;
++}
++
++/* interrupt urb needs to be submitted, used for serial read of muxed port */
++static int hso_mux_submit_intr_urb(struct hso_shared_int *shared_int,
++ struct usb_device *usb, gfp_t gfp)
++{
++ int result;
++
++ usb_fill_int_urb(shared_int->shared_intr_urb, usb,
++ usb_rcvintpipe(usb,
++ shared_int->intr_endp->bEndpointAddress & 0x7F),
++ shared_int->shared_intr_buf,
++ shared_int->intr_endp->wMaxPacketSize,
++ intr_callback, shared_int,
++ shared_int->intr_endp->bInterval);
++
++ result = usb_submit_urb(shared_int->shared_intr_urb, gfp);
++ if (result)
++ dev_warn(&usb->dev, "%s failed mux_intr_urb %d", __func__,
++ result);
++
++ return result;
++}
++
++/* operations setup of the serial interface */
++static struct tty_operations hso_serial_ops = {
++ .open = hso_serial_open,
++ .close = hso_serial_close,
++ .write = hso_serial_write,
++ .write_room = hso_serial_write_room,
++ .set_termios = hso_serial_set_termios,
++ .chars_in_buffer = hso_serial_chars_in_buffer,
++ .tiocmget = hso_serial_tiocmget,
++ .tiocmset = hso_serial_tiocmset,
++};
++
++static struct usb_driver hso_driver = {
++ .name = driver_name,
++ .probe = hso_probe,
++ .disconnect = hso_disconnect,
++ .id_table = hso_ids,
++ .suspend = hso_suspend,
++ .resume = hso_resume,
++ .supports_autosuspend = 1,
++};
++
++static int __init hso_init(void)
++{
++ int i;
++ int result;
++
++ /* put it in the log */
++ printk(KERN_INFO "hso: %s\n", version);
++
++ /* Initialise the serial table semaphore and table */
++ spin_lock_init(&serial_table_lock);
++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++)
++ serial_table[i] = NULL;
++
++ /* allocate our driver using the proper amount of supported minors */
++ tty_drv = alloc_tty_driver(HSO_SERIAL_TTY_MINORS);
++ if (!tty_drv)
++ return -ENOMEM;
++
++ /* fill in all needed values */
++ tty_drv->magic = TTY_DRIVER_MAGIC;
++ tty_drv->owner = THIS_MODULE;
++ tty_drv->driver_name = driver_name;
++ tty_drv->name = tty_filename;
++
++ /* if major number is provided as parameter, use that one */
++ if (tty_major)
++ tty_drv->major = tty_major;
++
++ tty_drv->minor_start = 0;
++ tty_drv->num = HSO_SERIAL_TTY_MINORS;
++ tty_drv->type = TTY_DRIVER_TYPE_SERIAL;
++ tty_drv->subtype = SERIAL_TYPE_NORMAL;
++ tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
++ tty_drv->init_termios = tty_std_termios;
++ tty_drv->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
++ tty_drv->termios = hso_serial_termios;
++ tty_drv->termios_locked = hso_serial_termios_locked;
++ tty_set_operations(tty_drv, &hso_serial_ops);
++
++ /* register the tty driver */
++ result = tty_register_driver(tty_drv);
++ if (result) {
++ printk(KERN_ERR "%s - tty_register_driver failed(%d)\n",
++ __func__, result);
++ return result;
++ }
++
++ /* register this module as an usb driver */
++ result = usb_register(&hso_driver);
++ if (result) {
++ printk(KERN_ERR "Could not register hso driver? error: %d\n",
++ result);
++ /* cleanup serial interface */
++ tty_unregister_driver(tty_drv);
++ return result;
++ }
++
++ /* done */
++ return 0;
++}
++
++static void __exit hso_exit(void)
++{
++ printk(KERN_INFO "hso: unloaded\n");
++
++ tty_unregister_driver(tty_drv);
++ /* deregister the usb driver */
++ usb_deregister(&hso_driver);
++}
++
++/* Module definitions */
++module_init(hso_init);
++module_exit(hso_exit);
++
++MODULE_AUTHOR(MOD_AUTHOR);
++MODULE_DESCRIPTION(MOD_DESCRIPTION);
++MODULE_LICENSE(MOD_LICENSE);
++MODULE_INFO(Version, DRIVER_VERSION);
++
++/* change the debug level (eg: insmod hso.ko debug=0x04) */
++MODULE_PARM_DESC(debug, "Level of debug [0x01 | 0x02 | 0x04 | 0x08 | 0x10]");
++module_param(debug, int, S_IRUGO | S_IWUSR);
++
++/* set the major tty number (eg: insmod hso.ko tty_major=245) */
++MODULE_PARM_DESC(tty_major, "Set the major tty number");
++module_param(tty_major, int, S_IRUGO | S_IWUSR);
++
++/* disable network interface (eg: insmod hso.ko disable_net=1) */
++MODULE_PARM_DESC(disable_net, "Disable the network interface");
++module_param(disable_net, int, S_IRUGO | S_IWUSR);
--
2.25.1