aboutsummaryrefslogtreecommitdiffstats
path: root/usb
diff options
authorGreg Kroah-Hartman <gregkh@suse.de>2008-04-14 11:48:33 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-14 11:48:33 -0700
commit645f80b273761010999044f0d421ac8e6447ab8a (patch)
treec2b814edde16d6d172980bef796ee16bcb4f124c /usb
parent519823d57dbb49138be0f0929d4160a19e1567cb (diff)
downloadpatches-645f80b273761010999044f0d421ac8e6447ab8a.tar.gz
added hso driver
Diffstat (limited to 'usb')
-rw-r--r--usb/usb-add-option-hso-driver.patch3384
1 files changed, 3384 insertions, 0 deletions
diff --git a/usb/usb-add-option-hso-driver.patch b/usb/usb-add-option-hso-driver.patch
new file mode 100644
index 00000000000000..3f0586cb7dbb05
--- /dev/null
+++ b/usb/usb-add-option-hso-driver.patch
@@ -0,0 +1,3384 @@
+From 873669714acc1995bc6582ff176d4a456b08a19b Mon Sep 17 00:00:00 2001
+From: Greg Kroah-Hartman <gregkh@suse.de>
+Date: Mon, 14 Apr 2008 11:41:16 -0700
+Subject: [PATCH 4/4] USB: add option hso driver
+
+This driver is for a number of different Option devices.
+
+Cc: Andrew Bird <ajb@spheresystems.co.uk>
+Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
+Cc: Filip Aben <f.aben@option.com>
+Cc: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
+---
+ drivers/net/usb/Kconfig | 10
+ drivers/net/usb/Makefile | 1
+ drivers/net/usb/hso.c | 3333 +++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 3344 insertions(+)
+ create mode 100644 drivers/net/usb/hso.c
+
+--- 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
++ default n
++ help
++ Choose this option if you have an Option High Speed Mobile
++ device.
++
++ 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)"
+--- 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
+--- /dev/null
++++ b/drivers/net/usb/hso.c
+@@ -0,0 +1,3333 @@
++/******************************************************************************
++ *
++ * Driver for Option High Speed Mobile Devices.
++ *
++ * Copyright (C) 2008 Option International
++ * Copyright (C) 2007 Andrew Bird (Sphere Systems Ltd)
++ * <ajb@spheresystems.co.uk>
++ *
++ * 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/inetdevice.h>
++#include <linux/etherdevice.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/ip.h>
++#include <linux/proc_fs.h>
++#include <linux/uaccess.h>
++#include <net/arp.h>
++#include <asm/byteorder.h>
++
++
++#define DRIVER_VERSION "1.1"
++#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_INTR_BUF_SIZE 16
++#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_BUSY 1
++#define HSO_TERMINATE 2
++
++#define HSO_NET_TX_TIMEOUT (HZ*10)
++
++#define SEND_ENCAPSULATED_COMMAND 0x00
++#define GET_ENCAPSULATED_RESPONSE 0x01
++
++/* Serial port defines and structs. */
++#define HSO_THRESHOLD_THROTTLE (7*1024)
++#define HSO_THRESHOLD_UNTHROTTLE (2*1024)
++
++/* These definitions used in the Ethernet Packet Filtering requests */
++/* See CDC Spec Table 62 */
++#define MODE_FLAG_PROMISCUOUS (1<<0)
++#define MODE_FLAG_ALL_MULTICAST (1<<1)
++#define MODE_FLAG_DIRECTED (1<<2)
++#define MODE_FLAG_BROADCAST (1<<3)
++#define MODE_FLAG_MULTICAST (1<<4)
++
++/* CDC Spec class requests - CDC Spec Table 46 */
++#define SET_ETHERNET_MULTICAST_FILTER 0x40
++#define SET_ETHERNET_PACKET_FILTER 0x43
++
++#define HSO_SERIAL_FLAG_THROTTLED 0
++#define HSO_SERIAL_FLAG_TX_SENT 1
++#define HSO_SERIAL_FLAG_RX_SENT 2
++#define HSO_SERIAL_USB_GONE 3
++
++#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) \
++ NFO(args); \
++ } while (0)
++
++#define QFO(fmt, args...) \
++ do { \
++ printk(KERN_INFO "hso: " fmt "\n", \
++ ##args); \
++ } while (0)
++
++#define NFO(args...) D__(KERN_INFO, ##args)
++#define ERR(args...) D__(KERN_ERR, ##args)
++#define WARN(args...) D__(KERN_WARNING, ##args)
++
++#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;
++ spinlock_t shared_int_lock;
++};
++
++struct hso_net {
++ struct hso_device *parent;
++ struct net_device_stats stats;
++ struct net_device *net;
++
++ 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;
++ struct ethhdr dummy_eth_head;
++
++ __u16 bcdCDC;
++ __u16 wMaxSegmentSize;
++ __u16 wNumberMCFilters;
++ __u16 mode_flags;
++ 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;
++ spinlock_t buffer_lock;
++ 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;
++
++ /* from usb_serial_port */
++ struct tty_struct *tty;
++ int open_count;
++ spinlock_t serial_lock;
++ void *private;
++
++ 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 suspend_disabled;
++ 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;
++
++ /* TODO: Not sure about the ones below */
++ struct proc_dir_entry *ourproc;
++};
++
++/* 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 */
++/*****************************************************************************/
++/* Network interface functions */
++static int hso_net_open(struct net_device *net);
++static int hso_net_close(struct net_device *net);
++static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net);
++static int hso_net_ioctl(struct net_device *net, struct ifreq *rq, int cmd);
++static struct net_device_stats *hso_net_get_stats(struct net_device *net);
++static void hso_net_tx_timeout(struct net_device *net);
++static void hso_net_set_multicast(struct net_device *net);
++static void read_bulk_callback(struct urb *urb);
++static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt,
++ unsigned int count, unsigned char is_eop);
++static void write_bulk_callback(struct urb *urb);
++/* Serial driver functions */
++static void ctrl_callback(struct urb *urb);
++static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial);
++static void hso_std_serial_read_bulk_callback(struct urb *urb);
++static void hso_std_serial_write_bulk_callback(struct urb *urb);
++static void _hso_serial_set_termios(struct tty_struct *tty,
++ struct ktermios *old);
++static void hso_kick_transmit(struct hso_serial *serial);
++/* Base driver functions */
++static int hso_probe(struct usb_interface *interface,
++ const struct usb_device_id *id);
++static void hso_disconnect(struct usb_interface *interface);
++/* Helper functions */
++static int hso_mux_submit_intr_urb(struct hso_shared_int *mux_int,
++ struct usb_device *usb, gfp_t gfp);
++static void hso_net_init(struct net_device *net);
++static void set_ethernet_addr(struct hso_net *odev);
++static struct hso_serial *get_serial_by_index(unsigned index);
++static struct hso_serial *get_serial_by_shared_int_and_type(
++ struct hso_shared_int *shared_int,
++ int mux);
++static int get_free_serial_index(void);
++static void set_serial_by_index(unsigned index, struct hso_serial *serial);
++static int remove_net_device(struct hso_device *hso_dev);
++static int add_net_device(struct hso_device *hso_dev);
++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);
++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 int hso_suspend(struct usb_interface *iface, pm_message_t message);
++static int hso_resume(struct usb_interface *iface);
++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 */
++/*****************************************************************************/
++
++/* convert a character representing a hex value to a number */
++static unsigned char hex2dec(unsigned char digit)
++{
++
++ if ((digit >= '0') && (digit <= '9'))
++ return (digit - '0');
++ /* Map all characters to 0-15 */
++ if ((digit >= 'a') && (digit <= 'z'))
++ return (digit - 'a' + 10) % 16;
++ if ((digit >= 'A') && (digit <= 'Z'))
++ return (digit - 'A' + 10) % 16;
++ return 16;
++}
++
++#define SIOCSETSUSPEND (SIOCDEVPRIVATE+3)
++#define SIOCSETRADIO (SIOCDEVPRIVATE+4)
++
++/* #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 procfs = 1;
++static int tty_major;
++static int disable_net;
++static int enable_autopm;
++
++/* 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;
++/* the procfs vars (if procfs enabled as parameter) */
++static struct proc_dir_entry *hso_proc_dir;
++static struct proc_dir_entry *hso_proc_dir_devices;
++/* 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 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);
++
++/* driver setup */
++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,
++};
++
++/* Sysfs attribute & function declaration */
++static ssize_t hso_sysfs_show_porttype(struct device *dev,
++ struct device_attribute *attr,
++ char *buf);
++static DEVICE_ATTR(hsotype, S_IRUGO, hso_sysfs_show_porttype, NULL);
++
++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);
++}
++
++/* Procfs functions */
++
++static int hso_proc_options(char *buf, char **start, off_t offset, int count,
++ int *eof, void *data)
++{
++ int len = 0;
++ /* get the module parameters */
++ len +=
++ snprintf(buf + len, count - len, "Version: %s\n", DRIVER_VERSION);
++ len += snprintf(buf + len, count - len, "debug: 0x%02x\n", debug);
++ len += snprintf(buf + len, count - len, "procfs: 0x%02x\n", procfs);
++ len +=
++ snprintf(buf + len, count - len, "tty_major: 0x%02x\n", tty_major);
++ len +=
++ snprintf(buf + len, count - len, "enable_autopm: 0x%02x\n",
++ enable_autopm);
++ len +=
++ snprintf(buf + len, count - len, "disable_net: 0x%02x\n",
++ disable_net);
++ return len;
++}
++
++static int hso_proc_port_info(char *buf, char **start, off_t offset, int count,
++ int *eof, void *data)
++{
++ int len = 0;
++ struct hso_device *hso_dev = (struct hso_device *)data;
++ char *port_name = NULL;
++
++ D1("count: %d", count);
++
++ 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_GPS:
++ port_name = "GPS";
++ break;
++ case HSO_PORT_GPS_CONTROL:
++ port_name = "GPS Control";
++ break;
++ case HSO_PORT_APP2:
++ port_name = "Application2";
++ 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;
++ }
++
++ len += snprintf(buf + len, count - len, "%s\n", port_name);
++
++ /* return the device id to the user, for use in scripts for autopm */
++ len +=
++ snprintf(buf + len, count - len, "USB bus ID:\t%s\n",
++ hso_dev->usb->dev.bus_id);
++ return len;
++}
++
++/* 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) {
++ printk("No net device !\n");
++ return -ENODEV;
++ }
++ /* reset read counter. */
++ odev->stats.rx_packets = 0;
++ 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);
++
++ /* Tell the kernel we are ready to start receiving from it */
++ netif_start_queue(net);
++
++ /* We are up and running. */
++ set_bit(HSO_NET_RUNNING, &odev->flags);
++
++ 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);
++
++ /* no longer running */
++ clear_bit(HSO_NET_RUNNING, &odev->flags);
++ /* we don't need the queue anymore */
++ netif_stop_queue(net);
++
++ hso_stop_net_device(odev->parent);
++
++ /* done */
++ return 0;
++}
++
++/* 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 = 0;
++
++ /* 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;
++ }
++
++ /* fetch the packet */
++ skb_pull(skb, ETH_HLEN);
++ /* 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. */
++ if ((result = usb_submit_urb(odev->mux_bulk_tx_urb, GFP_ATOMIC))) {
++ WARN("failed mux_bulk_tx_urb %d", result);
++ odev->stats.tx_errors++;
++ netif_start_queue(net);
++ } else {
++ odev->stats.tx_packets++;
++ odev->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 int hso_net_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
++{
++ struct hso_net *odev = netdev_priv(net);
++ u32 usercmd = 0;
++ char tmp[40];
++
++ switch (cmd) {
++ case SIOCDEVPRIVATE + 1:
++ /* Chose this one because SIOCDEVPRIVATE used somewhere else in
++ * this code */
++ /* return the number of sent bytes */
++ D5("Transmitted: %lu", odev->stats.tx_bytes);
++ rq->ifr_ifru.ifru_ivalue = odev->stats.tx_bytes;
++ return 0;
++
++ case SIOCETHTOOL:
++ /* net specific */
++ if (copy_from_user(&usercmd, rq->ifr_data, sizeof(usercmd)))
++ return -EFAULT;
++
++ switch (usercmd) {
++ case ETHTOOL_GDRVINFO:
++ {
++ /* get driver info */
++ struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO };
++ strncpy(info.driver, driver_name, ETHTOOL_BUSINFO_LEN);
++ strncpy(info.version, DRIVER_VERSION,
++ ETHTOOL_BUSINFO_LEN);
++ sprintf(tmp, "usb%d:%d",
++ odev->parent->usb->bus->busnum,
++ odev->parent->usb->devnum);
++ strncpy(info.bus_info, tmp, ETHTOOL_BUSINFO_LEN);
++ sprintf(tmp, "%s %x.%x", driver_name,
++ ((odev->bcdCDC & 0xff00) >> 8),
++ (odev->bcdCDC & 0x00ff));
++ strncpy(info.fw_version, tmp, ETHTOOL_BUSINFO_LEN);
++ if (copy_to_user(rq->ifr_data, &info, sizeof(info)))
++ return -EFAULT;
++
++ return 0;
++ }
++ case ETHTOOL_GLINK:
++ {
++ /* get link status */
++ struct ethtool_value edata = { ETHTOOL_GLINK };
++
++ edata.data = netif_carrier_ok(net);
++ if (copy_to_user(rq->ifr_data, &edata, sizeof(edata)))
++ return -EFAULT;
++
++ return 0;
++ }
++ default:
++ WARN("Got unsupported ioctl: %x", usercmd);
++ /* the ethtool user space tool relies on this */
++ return -EOPNOTSUPP;
++ }
++ default:
++ return -ENOTTY; /* per ioctl man page */
++ }
++}
++
++static struct net_device_stats *hso_net_get_stats(struct net_device *net)
++{
++ return &((struct hso_net *)netdev_priv(net))->stats;
++}
++
++/* 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. */
++ WARN("%s: Tx timed out.", net->name);
++
++ /* 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 */
++ odev->stats.tx_errors++;
++}
++
++/* setup the multicast filters */
++static void hso_net_set_multicast(struct net_device *net)
++{
++ struct hso_net *odev = netdev_priv(net);
++ int i = 0;
++ __u8 *buf = NULL;
++
++ /* Tell the kernel to stop sending us frames while we get this all set
++ * up. */
++ netif_stop_queue(net);
++
++ /* Note: do not reorder, GCC is clever about common statements. */
++ if (net->flags & IFF_PROMISC) {
++ /* Unconditionally log net taps. */
++ D1("%s: Promiscuous mode enabled", net->name);
++ odev->mode_flags =
++ MODE_FLAG_ALL_MULTICAST | MODE_FLAG_DIRECTED |
++ MODE_FLAG_BROADCAST | MODE_FLAG_MULTICAST |
++ MODE_FLAG_PROMISCUOUS;
++ } else if (net->mc_count > odev->wNumberMCFilters) {
++ /* Too many to filter perfectly -- accept all multicasts. */
++ D1("%s: too many MC filters for hardware, using allmulti",
++ net->name);
++ odev->mode_flags =
++ MODE_FLAG_ALL_MULTICAST | MODE_FLAG_DIRECTED |
++ MODE_FLAG_BROADCAST | MODE_FLAG_MULTICAST;
++ } else if (net->flags & IFF_ALLMULTI) {
++ /* Filter in software */
++ D1("%s: using allmulti", net->name);
++ odev->mode_flags =
++ MODE_FLAG_ALL_MULTICAST | MODE_FLAG_DIRECTED |
++ MODE_FLAG_BROADCAST | MODE_FLAG_MULTICAST;
++ } else {
++ /* do multicast filtering in hardware */
++ struct dev_mc_list *mclist;
++ D1("%s: set multicast filters", net->name);
++ odev->mode_flags =
++ MODE_FLAG_ALL_MULTICAST | MODE_FLAG_DIRECTED |
++ MODE_FLAG_BROADCAST | MODE_FLAG_MULTICAST;
++ buf = kmalloc(6 * net->mc_count, GFP_ATOMIC);
++ if (!buf) {
++ ERR("No memory to allocate?");
++ goto exit;
++ }
++ for (i = 0, mclist = net->mc_list; mclist && i < net->mc_count;
++ i++, mclist = mclist->next) {
++ memcpy(&mclist->dmi_addr, &buf[i * 6], 6);
++ }
++ kfree(buf);
++ }
++
++exit:
++ /* Tell the kernel to start giving frames to us again. */
++ netif_wake_queue(net);
++}
++
++/* 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 = NULL;
++ int result = 0;
++ unsigned long flags = 0;
++ 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_irqsave(&odev->net_lock, flags);
++ packetizeRx(odev, urb->transfer_buffer, urb->actual_length,
++ (urb->transfer_buffer_length >
++ urb->actual_length) ? 1 : 0);
++ spin_unlock_irqrestore(&odev->net_lock, flags);
++ }
++
++ /* 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. */
++ if ((result = usb_submit_urb(urb, GFP_ATOMIC))) {
++ WARN("%s failed submit mux_bulk_rx_urb %d", __func__,
++ result);
++ }
++}
++
++/* 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 = 0;
++ unsigned short buffer_offset = 0;
++ unsigned short frame_len = 0;
++ unsigned char *tmp_rx_buf = NULL;
++ struct ethhdr *eth_head = NULL;
++
++ /* 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) {
++ D1("Frame (%d) length larger then MRU"
++ "(%d)", frame_len, DEFAULT_MRU);
++ odev->rx_parse_state = WAIT_SYNC;
++ continue;
++ }
++ /* Allocate an sk_buff */
++ if (!
++ (odev->skb_rx_buf =
++ dev_alloc_skb(frame_len + 2 +
++ odev->net->
++ hard_header_len))) {
++ /* 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;
++
++ /* Make some headroom: standard alignment + the ethernet header. */
++ skb_reserve(odev->skb_rx_buf,
++ 2 + odev->net->hard_header_len);
++
++ /* 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 =
++ odev->net->hard_header_len +
++ 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. */
++ {
++ /* Add fake ethernet header. */
++ eth_head =
++ (struct ethhdr *)skb_push(odev->
++ skb_rx_buf,
++ odev->
++ net->
++ hard_header_len);
++ memcpy(eth_head, &odev->dummy_eth_head,
++ sizeof(struct ethhdr));
++
++ /* Not sure here either */
++ odev->skb_rx_buf->protocol =
++ eth_type_trans(odev->skb_rx_buf,
++ odev->net);
++ odev->skb_rx_buf->ip_summed = CHECKSUM_UNNECESSARY; /* don't check it */
++ /* 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->stats.rx_packets++;
++
++ /* Hmmm, wonder if we have received the IP len or the ETH len. */
++ odev->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);
++ }
++ }
++}
++
++/* 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)) {
++ ERR("write_bulk_callback: device not running");
++ return;
++ }
++
++ /* Do we still have a valid kernel network device? */
++ if (!netif_device_present(odev->net)) {
++ ERR("write_bulk_callback: net device not present");
++ 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);
++}
++
++/* 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);
++
++ if ((!tty) || (!tty->termios) || (!serial)) {
++ ERR("no tty structures");
++ return;
++ }
++
++ D4("port %d", serial->minor);
++
++ /*
++ * The default requirements for this device are:
++ */
++ serial->tty->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 */
++ serial->tty->termios->c_oflag &= ~OPOST;
++
++ serial->tty->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 */
++
++ serial->tty->termios->c_cflag &=
++ ~(CSIZE /* no size */
++ | PARENB /* disable parity bit */
++ | CBAUD); /* clear current baud rate */
++
++ serial->tty->termios->c_cflag |=
++ (CS8 /* character size 8 bits */
++ | B115200); /* baud rate 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;
++
++ /* Notify the tty driver that the termios have changed. */
++ serial->tty->ldisc.set_termios(serial->tty, NULL);
++ 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 = 0;
++ unsigned long flags;
++
++ /* sanity check */
++ if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) {
++ tty->driver_data = NULL;
++ D1("Failed to open port");
++ return -ENODEV;
++ }
++
++ usb_autopm_get_interface(serial->parent->interface);
++
++ D1("Opening %d", serial->minor);
++ /* lock it down */
++ spin_lock_irqsave(&serial->serial_lock, flags);
++
++ 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);
++ } else {
++ D1("Port was already open");
++ }
++
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++
++ usb_autopm_put_interface(serial->parent->interface);
++
++ /* done */
++ if (result)
++ kref_put(&serial->parent->ref, hso_serial_ref_free);
++ 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;
++ unsigned long flags;
++ D1("Closing serial port");
++
++ /* sanity check */
++ if (tty == NULL || serial == NULL) {
++ D1("(tty == NULL || tty->driver_data == NULL)");
++ return;
++ }
++
++ if (test_bit(HSO_SERIAL_USB_GONE, &serial->flags))
++ goto out;
++
++ usb_autopm_get_interface(serial->parent->interface);
++
++ /* reset the rts and dtr */
++ /* do the actual close */
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ serial->open_count--;
++ if (serial->open_count <= 0) {
++ serial->open_count = 0;
++ if (serial->tty) {
++ serial->tty->driver_data = NULL;
++ serial->tty = NULL;
++ }
++ }
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++ usb_autopm_put_interface(serial->parent->interface);
++
++out:
++ if (!serial->open_count)
++ hso_stop_serial_device(serial->parent);
++
++ /* usb_autopm_put_interface( serial->parent->interface ); */
++ kref_put(&serial->parent->ref, hso_serial_ref_free);
++}
++
++/* 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 = 0, tx_bytes = 0;
++ unsigned long flags;
++
++ /* sanity check */
++ if (serial == NULL) {
++ ERR("%s(%d) tty or tty->driver_data is NULL", __func__,
++ __LINE__);
++ 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 = 0;
++ unsigned long flags;
++
++ /* sanity check */
++ if (serial == NULL) {
++ return 0;
++ }
++
++ 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;
++
++ /* sanity check */
++ if ((!serial) || (!tty->termios)) {
++ D1("no tty structures");
++ return;
++ }
++
++ 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);
++ }
++ 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 = 0;
++ 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 = 0;
++ 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;
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ int if_num =
++ serial->parent->interface->altsetting->desc.bInterfaceNumber;
++
++ /* sanity check */
++ if (!serial) {
++ D1("no tty structures");
++ return -EINVAL;
++ }
++ /* 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);
++}
++
++/* Toggles suspend on or off ( used by ioctl ) */
++static int hso_set_suspend(struct hso_device *hso_dev, int enabled)
++{
++ if (!hso_dev)
++ return -ENODEV;
++
++ if (enabled) {
++ if (hso_dev->suspend_disabled) {
++ usb_autopm_put_interface(hso_dev->interface);
++ hso_dev->suspend_disabled = 0;
++ }
++ } else {
++ if (!hso_dev->suspend_disabled) {
++ usb_autopm_get_interface(hso_dev->interface);
++ hso_dev->suspend_disabled = 1;
++ }
++ }
++ return 0;
++}
++
++/* Toggles radioon or off ( used by ioctl ) */
++static int hso_set_radio(struct hso_device *hso_dev, int enabled)
++{
++ if (!hso_dev)
++ return -ENODEV;
++
++ return usb_control_msg(hso_dev->usb, usb_rcvctrlpipe(hso_dev->usb, 0),
++ enabled ? 0x82 : 0x81, 0x40, 0, 0, NULL, 0,
++ USB_CTRL_SET_TIMEOUT);
++}
++
++/* ioctl not supported */
++static int hso_serial_ioctl(struct tty_struct *tty, struct file *file,
++ unsigned int cmd, unsigned long arg)
++{
++ struct hso_serial *serial = get_serial_by_tty(tty);
++ int ret = 0;
++ D4("IOCTL cmd: %d, arg: %ld", cmd, arg);
++
++ if (!serial)
++ return -ENODEV;
++
++ switch (cmd) {
++ case SIOCSETSUSPEND:
++ if (arg)
++ hso_set_suspend(serial->parent, 1);
++ else
++ hso_set_suspend(serial->parent, 0);
++ ret = 0;
++ break;
++ case SIOCSETRADIO:
++ if (arg)
++ hso_set_radio(serial->parent, 1);
++ else
++ hso_set_radio(serial->parent, 0);
++ ret = 0;
++ break;
++ default:
++ ret = -ENOIOCTLCMD;
++ break;
++ }
++ return ret;
++}
++
++static void hso_serial_throttle(struct tty_struct *tty)
++{
++ D1(" ");
++}
++
++static void hso_serial_unthrottle(struct tty_struct *tty)
++{
++ D1(" ");
++}
++
++static void hso_serial_break(struct tty_struct *tty, int break_state)
++{
++ D1(" ");
++}
++
++static int hso_serial_read_proc(char *page, char **start, off_t off, int count,
++ int *eof, void *data)
++{
++ return 0;
++}
++
++static void hso_serial_hangup(struct tty_struct *tty)
++{
++ D1("hang up");
++}
++
++/* starts a transmit */
++static void hso_kick_transmit(struct hso_serial *serial)
++{
++ u8 *temp = NULL;
++ unsigned long flags;
++
++ spin_lock_irqsave(&serial->serial_lock, flags);
++ if (!serial->tx_buffer_count) {
++ goto out;
++ }
++
++ if (serial->tx_urb->status == -EINPROGRESS) {
++ 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;
++
++out:
++ /* If temp is set, it means we switched buffers */
++ if (temp && serial->write_data) {
++ serial->write_data(serial);
++ }
++ spin_unlock_irqrestore(&serial->serial_lock, flags);
++}
++
++/* 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;
++}
++
++/* 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 = 0;
++ int pipe = -1;
++
++ /* Sanity check */
++ if (!serial || !ctrl_urb || !ctrl_req) {
++ ERR("Wrong arguments ");
++ return -EINVAL;
++ }
++
++ /* initialize */
++ ctrl_req->wValue = 0;
++ ctrl_req->wIndex = hso_port_to_mux(port);
++ ctrl_req->wLength = size;
++
++ if (type == GET_ENCAPSULATED_RESPONSE) {
++ /* Reading command */
++ ctrl_req->bRequestType =
++ USB_DIR_IN | USB_TYPE_OPTION_VENDOR | USB_RECIP_INTERFACE;
++ ctrl_req->bRequest = 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 = SEND_ENCAPSULATED_COMMAND;
++ pipe = usb_sndctrlpipe(serial->parent->usb, 0);
++ }
++ /* syslog */
++ D2("%s command (%02x) len: %d, port: %d",
++ type == 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 */
++ if ((result = usb_submit_urb(ctrl_urb, GFP_ATOMIC))) {
++ ERR("%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 (NULL == serial)
++ return -EINVAL;
++ /* clean data */
++ memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE);
++ /* make the request */
++
++ if (serial->num_rx_urbs != 1) {
++ printk
++ ("ERROR: mux'd reads with multiple buffers not possible\n");
++ return 0;
++ }
++ return mux_device_request(serial,
++ 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 = NULL;
++ unsigned char *port_req = NULL;
++ int status = urb->status;
++ int i = 0;
++
++ 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_KERNEL);
++}
++
++/* 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,
++ SEND_ENCAPSULATED_COMMAND,
++ serial->parent->port_spec & HSO_PORT_MASK,
++ serial->tx_urb,
++ &serial->ctrl_req_tx,
++ serial->tx_data, serial->tx_data_count);
++}
++
++/* 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 = 0;
++
++ 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);
++
++ if ((result = usb_submit_urb(serial->tx_urb, GFP_KERNEL))) {
++ D1("Failed to submit urb - res %d ", 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 = NULL;
++ int status = urb->status;
++
++ /* sanity check */
++ if (!serial) {
++ return;
++ }
++
++ 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_buffer_request_room(tty, urb->actual_length);
++ 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 = 0;
++ 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. */
++ if ((result = usb_submit_urb(urb, GFP_ATOMIC))) {
++ ERR("%s failed submit serial rx_urb %d", __func__, result);
++ }
++}
++
++/* 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;
++ }
++
++ if (status) {
++ log_usb_status(status, __func__);
++ return;
++ }
++ hso_put_activity(serial->parent);
++ tty_wakeup(serial->tty);
++ hso_kick_transmit(serial);
++
++ D1(" ");
++ return;
++}
++
++/* Base driver functions */
++
++/* 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,
++ .ioctl = hso_serial_ioctl,
++ .set_termios = hso_serial_set_termios,
++ .throttle = hso_serial_throttle,
++ .unthrottle = hso_serial_unthrottle,
++ .break_ctl = hso_serial_break,
++ .chars_in_buffer = hso_serial_chars_in_buffer,
++ .read_proc = hso_serial_read_proc,
++ .hangup = hso_serial_hangup,
++ .tiocmget = hso_serial_tiocmget,
++ .tiocmset = hso_serial_tiocmset,
++};
++
++static int __init hso_init(void)
++{
++ int i = 0;
++ int result = 0;
++
++ /* put it in the log */
++ QFO("%s", version);
++
++ /* if procfs is enabled, initialize devices */
++ if (procfs) {
++ QFO("Registering procfs");
++ hso_proc_dir = proc_mkdir(driver_name, NULL);
++ if (hso_proc_dir) {
++ hso_proc_dir_devices =
++ proc_mkdir("devices", hso_proc_dir);
++ create_proc_read_entry("options", 0, hso_proc_dir,
++ hso_proc_options, NULL);
++ }
++ }
++
++ /* 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) {
++ err("%s - tty_register_driver failed(%d)", __func__,
++ result);
++ return result;
++ }
++
++ /* register this module as an usb driver */
++ if ((result = usb_register(&hso_driver))) {
++ ERR("Could not register hso driver? error: %d", result);
++ /* cleanup serial interface */
++ tty_unregister_driver(tty_drv);
++ return result;
++ }
++
++ /* done */
++ return 0;
++}
++
++static void __exit hso_exit(void)
++{
++ QFO("Exiting hso");
++
++ tty_unregister_driver(tty_drv);
++ /* deregister the usb driver */
++ usb_deregister(&hso_driver);
++ /* if procfs is enabled, remove the entries */
++
++ if (procfs) {
++ remove_proc_entry("options", hso_proc_dir);
++ remove_proc_entry("devices", hso_proc_dir);
++ remove_proc_entry(driver_name, NULL);
++ }
++
++}
++
++static void hso_log_port(struct hso_device *hso_dev)
++{
++ char *port_type = NULL;
++ 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);
++
++ printk("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 */
++ if ((result =
++ usb_submit_urb(hso_net->mux_bulk_rx_urb_pool[i],
++ GFP_KERNEL))) {
++ WARN("%s failed mux_bulk_rx_urb[%d] %d", __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]
++ && (hso_net->mux_bulk_rx_urb_pool[i]->status ==
++ -EINPROGRESS))
++ usb_unlink_urb(hso_net->mux_bulk_rx_urb_pool[i]);
++
++ }
++ if (hso_net->mux_bulk_tx_urb
++ && (hso_net->mux_bulk_tx_urb->status == -EINPROGRESS))
++ usb_unlink_urb(hso_net->mux_bulk_tx_urb);
++
++ return 0;
++}
++
++static int hso_start_serial_device(struct hso_device *hso_dev)
++{
++ 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);
++ if ((result =
++ usb_submit_urb(serial->rx_urb[i], GFP_KERNEL))) {
++ D1("Failed to submit urb - res %d", result);
++ break;
++ }
++ }
++ } else {
++ spin_lock_bh(&serial->shared_int->shared_int_lock);
++ if (!serial->shared_int->use_count) {
++ result =
++ hso_mux_submit_intr_urb(serial->shared_int,
++ hso_dev->usb, GFP_KERNEL);
++ }
++ serial->shared_int->use_count++;
++ spin_unlock_bh(&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]
++ && (serial->rx_urb[i]->status == -EINPROGRESS)) {
++ usb_unlink_urb(serial->rx_urb[i]);
++ }
++ }
++
++ if (serial->tx_urb && (serial->tx_urb->status == -EINPROGRESS))
++ usb_unlink_urb(serial->tx_urb);
++ if (serial->shared_int) {
++ spin_lock_bh(&serial->shared_int->shared_int_lock);
++ if (serial->shared_int->use_count
++ && (--serial->shared_int->use_count == 0)) {
++ if ((serial->shared_int->shared_intr_urb)
++ && (serial->shared_int->shared_intr_urb->status ==
++ -EINPROGRESS)) {
++ usb_unlink_urb(serial->shared_int->
++ shared_intr_urb);
++ }
++ }
++ spin_unlock_bh(&serial->shared_int->shared_int_lock);
++ }
++
++ return 0;
++}
++
++static int 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 */
++ if (serial->rx_urb[i] != NULL) {
++ usb_free_urb(serial->rx_urb[i]);
++ }
++ /* free the RX buffer */
++ if (serial->rx_data[i] != NULL) {
++ kfree(serial->rx_data[i]);
++ }
++ }
++
++ /* unlink and free TX URB */
++ if (serial->tx_urb != NULL) {
++ usb_free_urb(serial->tx_urb);
++ }
++ /* free the TX buffer */
++ if (serial->tx_data != NULL) {
++ kfree(serial->tx_data);
++ }
++
++ return 0;
++}
++
++static int hso_serial_common_create(struct hso_serial *serial, int num_urbs,
++ int rx_size, int tx_size)
++{
++ struct device *dev = NULL;
++ int minor;
++ int i;
++
++ if ((minor = get_free_serial_index()) < 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?");
++ goto exit;
++ }
++ serial->rx_urb[i]->transfer_buffer = NULL;
++ serial->rx_urb[i]->transfer_buffer_length = 0;
++ if (!
++ (serial->rx_data[i] =
++ kzalloc(serial->rx_data_length, GFP_KERNEL))) {
++ ERR("%s - Out of memory", __func__);
++ goto exit;
++ }
++ }
++
++ /* TX , allocate urb and initialize */
++ if (!(serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
++ ERR("Could not allocate urb?");
++ 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) {
++ ERR("%s - Out of memory", __func__);
++ goto exit;
++ }
++ serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL);
++ if (!serial->tx_buffer) {
++ ERR("%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);
++
++ INIT_WORK(&hso_dev->async_get_intf, async_get_intf);
++ INIT_WORK(&hso_dev->async_put_intf, async_put_intf);
++
++ return hso_dev;
++}
++
++/* 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;
++
++ if (procfs)
++ remove_proc_entry(hso_net->net->name, hso_proc_dir_devices);
++
++ /* start freeing */
++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
++ if (hso_net->mux_bulk_rx_urb_pool[i]) {
++ usb_free_urb(hso_net->mux_bulk_rx_urb_pool[i]);
++ }
++ if (hso_net->mux_bulk_rx_buf_pool[i]) {
++ kfree(hso_net->mux_bulk_rx_buf_pool[i]);
++ }
++ }
++ if (hso_net->mux_bulk_tx_urb) {
++ usb_free_urb(hso_net->mux_bulk_tx_urb);
++ }
++ if (hso_net->mux_bulk_tx_buf) {
++ 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);
++}
++
++/* Creates our network device */
++static struct hso_device *hso_create_net_device(struct usb_interface *interface)
++{
++ int result, i;
++ struct net_device *net = NULL;
++ struct hso_net *hso_net = NULL;
++ struct hso_device *hso_dev = NULL;
++
++ 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) {
++ printk("Unable to create ethernet device");
++ goto exit;
++ }
++
++ hso_net = netdev_priv(net);
++
++ hso_dev->port_data.dev_net = hso_net;
++ hso_net->net = net;
++ hso_net->parent = hso_dev;
++
++ if (!
++ (hso_net->in_endp =
++ hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_IN))) {
++ printk("Can't find BULK IN endpoint\n");
++ goto exit;
++ }
++ if (!
++ (hso_net->out_endp =
++ hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) {
++ printk("Can't find BULK OUT endpoint\n");
++ goto exit;
++ }
++#ifdef SYSFS_NET
++ SET_NETDEV_DEV(net, &interface->dev);
++#endif
++
++ /* registering our net device */
++ result = register_netdev(net);
++ if (result) {
++ printk("Failed to register device\n");
++ goto exit;
++ }
++
++ /* start allocating */
++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) {
++ if (!
++ (hso_net->mux_bulk_rx_urb_pool[i] =
++ usb_alloc_urb(0, GFP_KERNEL))) {
++ printk("Could not allocate rx urb?");
++ goto exit;
++ }
++ if (!
++ (hso_net->mux_bulk_rx_buf_pool[i] =
++ kzalloc(MUX_BULK_RX_BUF_SIZE, GFP_KERNEL))) {
++ printk("Could not allocate rx buf?");
++ goto exit;
++ }
++ }
++ if (!(hso_net->mux_bulk_tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
++ printk("Could not allocate tx urb?");
++ goto exit;
++ }
++ if (!
++ (hso_net->mux_bulk_tx_buf =
++ kzalloc(MUX_BULK_TX_BUF_SIZE, GFP_KERNEL))) {
++ printk("Could not allocate tx buf?");
++ goto exit;
++ }
++
++ /* and don't forget the MAC address. */
++ set_ethernet_addr(hso_net);
++
++ add_net_device(hso_dev);
++
++ /* setup the proc dirs and files if needed */
++ if (procfs) {
++ if (!hso_proc_dir_devices)
++ QFO("Warning, creating port info under root");
++ create_proc_read_entry(hso_net->net->name, 0,
++ hso_proc_dir_devices, hso_proc_port_info,
++ hso_dev);
++ }
++
++ hso_log_port(hso_dev);
++
++ 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);
++ char device_name[20];
++
++ if (!serial)
++ return;
++ set_serial_by_index(serial->minor, NULL);
++
++ if (procfs) {
++ sprintf(device_name, "%s%d", tty_filename, serial->minor);
++ remove_proc_entry(device_name, hso_proc_dir_devices);
++ }
++
++ hso_serial_common_free(serial);
++
++ if (serial->shared_int) {
++ spin_lock_bh(&serial->shared_int->shared_int_lock);
++ if (--serial->shared_int->ref_count == 0) {
++ hso_free_shared_int(serial->shared_int);
++ }
++ spin_unlock_bh(&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 = NULL;
++ struct hso_serial *serial = NULL;
++ char device_name[20];
++ 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) {
++ printk("Failed to find BULK IN ep\n");
++ goto exit;
++ }
++
++ if (!
++ (serial->out_endp =
++ hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) {
++ printk("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 */
++ if (procfs) {
++ if (!hso_proc_dir_devices)
++ QFO("Warning, creating port info under root");
++ sprintf(device_name, "%s%d", tty_filename, serial->minor);
++ create_proc_read_entry(device_name, 0, hso_proc_dir_devices,
++ hso_proc_port_info, hso_dev);
++ }
++
++ hso_log_port(hso_dev);
++
++ /* done, return it */
++ return hso_dev;
++exit:
++ if (hso_dev && serial)
++ hso_serial_common_free(serial);
++ if (serial)
++ kfree(serial);
++ if (hso_dev)
++ 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 = NULL;
++ struct hso_serial *serial = NULL;
++ char device_name[20];
++ int port_spec = 0;
++
++ 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 = (struct hso_serial *)kmalloc(sizeof(*serial), GFP_KERNEL);
++ if (!serial)
++ goto exit;
++ memset(serial, 0, sizeof(*serial));
++
++ 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;
++ spin_lock_bh(&serial->shared_int->shared_int_lock);
++ serial->shared_int->ref_count++;
++ spin_unlock_bh(&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 */
++ if (procfs) {
++ if (!hso_proc_dir_devices)
++ QFO("Warning, creating port info under root");
++ sprintf(device_name, "%s%d", tty_filename, serial->minor);
++ create_proc_read_entry(device_name, 0, hso_proc_dir_devices,
++ hso_proc_port_info, hso_dev);
++ }
++
++ 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)
++{
++ if (mux->shared_intr_urb)
++ usb_free_urb(mux->shared_intr_urb);
++ if (mux->shared_intr_buf)
++ kfree(mux->shared_intr_buf);
++
++ 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;
++
++ if (!
++ (mux->intr_endp =
++ hso_get_ep(interface, USB_ENDPOINT_XFER_INT, USB_DIR_IN))) {
++ printk("Can't find INT IN endpoint\n");
++ goto exit;
++ }
++
++ if (!(mux->shared_intr_urb = usb_alloc_urb(0, GFP_KERNEL))) {
++ printk("Could not allocate intr urb?");
++ goto exit;
++ }
++ if (!
++ (mux->shared_intr_buf =
++ kzalloc(mux->intr_endp->wMaxPacketSize, GFP_KERNEL))) {
++ printk("Could not allocate intr buf?");
++ goto exit;
++ }
++
++ spin_lock_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 = 0;
++
++ 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 = NULL;
++ 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) {
++ printk("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);
++
++ if (enable_autopm == 0) {
++ usb_autopm_get_interface(hso_dev->interface);
++ hso_dev->suspend_disabled = 1;
++ }
++
++ /* 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 = 0;
++
++ /* 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]);
++ 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) {
++ printk("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)
++{
++ int i;
++
++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
++ if (serial_table[i]
++ && (serial_table[i]->interface == interface)) {
++ if (dev2ser(serial_table[i])->tty)
++ tty_hangup(dev2ser(serial_table[i])->tty);
++ set_bit(HSO_SERIAL_USB_GONE,
++ &dev2ser(serial_table[i])->flags);
++ 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)) {
++ /* 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]);
++ 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 = NULL;
++
++ 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 = 0;
++
++ 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)
++ WARN("%s failed mux_intr_urb %d", __func__, result);
++
++ return result;
++}
++
++/* initialize the network interface */
++static void hso_net_init(struct net_device *net)
++{
++ struct hso_net *hso_net = netdev_priv(net);
++
++ /* initialize to zero */
++ memset(hso_net, 0, sizeof(*hso_net));
++ D1("sizeof hso_net is %d", sizeof(*hso_net));
++
++ /* most of the setup is done by standard function */
++ ether_setup(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->do_ioctl = hso_net_ioctl;
++ net->get_stats = hso_net_get_stats;
++ net->tx_timeout = hso_net_tx_timeout;
++ net->watchdog_timeo = HSO_NET_TX_TIMEOUT;
++ net->set_multicast_list = hso_net_set_multicast;
++ net->flags |= IFF_NOARP;
++ net->mtu = DEFAULT_MTU - 14;
++ net->tx_queue_len = 10;
++ hso_net->skb_rx_buf = NULL;
++ hso_net->rx_parse_state = WAIT_IP;
++ hso_net->wMaxSegmentSize = DEFAULT_MTU;
++ /* always use all multi, no lists of multicasts */
++ hso_net->wNumberMCFilters = 0;
++
++ /* and initialize the semaphore */
++ spin_lock_init(&hso_net->net_lock);
++}
++
++/* setting the mac-address of the newly created iface */
++static void set_ethernet_addr(struct hso_net *odev)
++{
++ unsigned char mac_addr[6];
++ unsigned char dummy_mac[6];
++ int i = 0;
++ int len = 0;
++ unsigned char buffer[13];
++ unsigned char checkserial[7] = "Serial";
++
++ /* we can't fail, therefor we use a default macaddress (constructed
++ * from the pointer of our struct) */
++ mac_addr[0] = 0x00;
++ mac_addr[1] = 0x03;
++ mac_addr[2] = (unsigned char)(((unsigned long)odev) & 0xFF);
++ mac_addr[3] = (unsigned char)((((unsigned long)odev) >> 8) & 0xFF);
++ mac_addr[4] = (unsigned char)((((unsigned long)odev) >> 16) & 0xFF);
++ mac_addr[5] = (unsigned char)((((unsigned long)odev) >> 24) & 0xFF);
++ dummy_mac[0] = 0xFA;
++ dummy_mac[1] = mac_addr[1];
++ dummy_mac[2] = mac_addr[2];
++ dummy_mac[3] = mac_addr[3];
++ dummy_mac[4] = mac_addr[4];
++ dummy_mac[5] = mac_addr[5];
++
++ /* but we like consistency, that's why we try to use the serial number
++ * as a macaddress if available */
++ len = usb_string(odev->parent->usb,
++ odev->parent->usb->descriptor.iSerialNumber,
++ buffer, 13);
++ if (len != 12) {
++ /* some devices don't have the serial filled in, checking ... */
++ for (i = 0; i < 6; i++) {
++ if (buffer[i] != checkserial[i]) {
++ /* Fill in the mac_addr */
++ for (i = 2; i < 6; i++) {
++ if ((16 == buffer[2 * i]) ||
++ (16 == buffer[2 * i + 1])) {
++ ERR("Bad value in MAC "
++ "address i:%d", i);
++ } else {
++ mac_addr[i] =
++ (hex2dec(buffer[2 * i]) <<
++ 4) + hex2dec(buffer[2 * i +
++ 1]);
++ }
++ }
++ break;
++ }
++ }
++ } else {
++ ERR("Attempting to get MAC address failed: using default");
++ }
++
++ /* Now copy it over to our network device structure */
++ memcpy(odev->net->dev_addr, mac_addr, sizeof(mac_addr));
++
++ /* Create the default fake ethernet header. */
++ memcpy(odev->dummy_eth_head.h_dest, mac_addr, ETH_ALEN);
++ memcpy(odev->dummy_eth_head.h_source, dummy_mac, ETH_ALEN);
++ odev->dummy_eth_head.h_proto = htons(ETH_P_IP);
++}
++
++/* 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;
++}
++
++/* 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;
++}
++
++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 = NULL;
++ 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 = 0;
++ 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);
++
++ ERR("no free serial devices in table");
++ 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 to syslog */
++static void log_usb_status(int status, const char *function)
++{
++ char *explanation = NULL;
++
++ 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);
++}
++
++/* 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);
++
++/* Module parameter to allow procfs (eg: insmod hso.ko procfs=1) */
++MODULE_PARM_DESC(procfs, "Allow procfs [0 | 1]");
++module_param(procfs, int, S_IRUGO | S_IWUSR);
++
++/* 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);
++
++/* set the major tty number (eg: insmod hso.ko tty_major=245) */
++MODULE_PARM_DESC(disable_net, "Disable the network interface");
++module_param(disable_net, int, S_IRUGO | S_IWUSR);
++
++/* enable autosuspend (default disabled) (eg: insmod hso.ko enable_autopm=1) */
++MODULE_PARM_DESC(enable_autopm,
++ "Enable the auto power managment (autosuspend)");
++module_param(enable_autopm, int, S_IRUGO | S_IWUSR);
generated by cgit 1.2.3-korg (git 2.43.0) at 2026-03-01 20:04:18 +0000