diff options
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch | 2915 |
1 files changed, 2915 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch b/target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch new file mode 100644 index 000000000..34c2d9425 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.26/915-hso-backport.patch @@ -0,0 +1,2915 @@ +From: Greg Kroah-Hartman <gregkh@suse.de> +Date: Wed, 14 May 2008 04:57:12 +0000 (-0700) +Subject: HSO: add option hso driver +X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=72dc1c096c7051a48ab1dbb12f71976656b55eb5;hp=44f74c046961bd1f21b7d35baaa9165572d1e975 + +HSO: add option hso driver + +This driver is for a number of different Option devices. Originally +written by Option and Andrew Bird, but cleaned up massivly for +acceptance into mainline by me and others. + +Many thanks to the following for their help in cleaning up the driver by +providing feedback and patches to it: + - Paulius Zaleckas <paulius.zaleckas@teltonika.lt> + - Oliver Neukum <oliver@neukum.org> + - Alan Cox <alan@lxorguk.ukuu.org.uk> + - Javier Marcet <javier@krausbeck.org> + +Cc: Andrew Bird <ajb@spheresystems.co.uk> +Cc: Javier Marcet <javier@krausbeck.org> +Cc: Filip Aben <f.aben@option.com> +Cc: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> +Cc: Oliver Neukum <oliver@neukum.org> +Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> +Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> +Signed-off-by: Jeff Garzik <jgarzik@redhat.com> +--- + +diff --git a/drivers/net/Makefile b/drivers/net/Makefile +index c52738a..c96fe20 100644 +--- a/drivers/net/Makefile ++++ b/drivers/net/Makefile +@@ -237,6 +237,7 @@ obj-$(CONFIG_USB_CATC) += usb/ + obj-$(CONFIG_USB_KAWETH) += usb/ + obj-$(CONFIG_USB_PEGASUS) += usb/ + obj-$(CONFIG_USB_RTL8150) += usb/ ++obj-$(CONFIG_USB_HSO) += usb/ + obj-$(CONFIG_USB_USBNET) += usb/ + obj-$(CONFIG_USB_ZD1201) += usb/ + +diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig +index 0604f3f..68e198b 100644 +--- a/drivers/net/usb/Kconfig ++++ b/drivers/net/usb/Kconfig +@@ -154,6 +154,16 @@ config USB_NET_AX8817X + This driver creates an interface named "ethX", where X depends on + what other networking devices you have in use. + ++config USB_HSO ++ tristate "Option USB High Speed Mobile Devices" ++ depends on USB && RFKILL ++ default n ++ help ++ Choose this option if you have an Option HSDPA/HSUPA card. ++ These cards support downlink speeds of 7.2Mbps or greater. ++ ++ To compile this driver as a module, choose M here: the ++ module will be called hso. + + config USB_NET_CDCETHER + tristate "CDC Ethernet support (smart devices such as cable modems)" +diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile +index 595a539..24800c1 100644 +--- a/drivers/net/usb/Makefile ++++ b/drivers/net/usb/Makefile +@@ -6,6 +6,7 @@ obj-$(CONFIG_USB_CATC) += catc.o + obj-$(CONFIG_USB_KAWETH) += kaweth.o + obj-$(CONFIG_USB_PEGASUS) += pegasus.o + obj-$(CONFIG_USB_RTL8150) += rtl8150.o ++obj-$(CONFIG_USB_HSO) += hso.o + obj-$(CONFIG_USB_NET_AX8817X) += asix.o + obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o + obj-$(CONFIG_USB_NET_DM9601) += dm9601.o +diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c +new file mode 100644 +index 0000000..031d07b +--- /dev/null ++++ b/drivers/net/usb/hso.c +@@ -0,0 +1,2836 @@ ++/****************************************************************************** ++ * ++ * Driver for Option High Speed Mobile Devices. ++ * ++ * Copyright (C) 2008 Option International ++ * Copyright (C) 2007 Andrew Bird (Sphere Systems Ltd) ++ * <ajb@spheresystems.co.uk> ++ * Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de> ++ * Copyright (C) 2008 Novell, Inc. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, ++ * USA ++ * ++ * ++ *****************************************************************************/ ++ ++/****************************************************************************** ++ * ++ * Description of the device: ++ * ++ * Interface 0: Contains the IP network interface on the bulk end points. ++ * The multiplexed serial ports are using the interrupt and ++ * control endpoints. ++ * Interrupt contains a bitmap telling which multiplexed ++ * serialport needs servicing. ++ * ++ * Interface 1: Diagnostics port, uses bulk only, do not submit urbs until the ++ * port is opened, as this have a huge impact on the network port ++ * throughput. ++ * ++ * Interface 2: Standard modem interface - circuit switched interface, should ++ * not be used. ++ * ++ *****************************************************************************/ ++ ++#include <linux/sched.h> ++#include <linux/slab.h> ++#include <linux/init.h> ++#include <linux/delay.h> ++#include <linux/netdevice.h> ++#include <linux/module.h> ++#include <linux/ethtool.h> ++#include <linux/usb.h> ++#include <linux/timer.h> ++#include <linux/tty.h> ++#include <linux/tty_driver.h> ++#include <linux/tty_flip.h> ++#include <linux/kmod.h> ++#include <linux/rfkill.h> ++#include <linux/ip.h> ++#include <linux/uaccess.h> ++#include <linux/usb/cdc.h> ++#include <net/arp.h> ++#include <asm/byteorder.h> ++ ++ ++#define DRIVER_VERSION "1.2" ++#define MOD_AUTHOR "Option Wireless" ++#define MOD_DESCRIPTION "USB High Speed Option driver" ++#define MOD_LICENSE "GPL" ++ ++#define HSO_MAX_NET_DEVICES 10 ++#define HSO__MAX_MTU 2048 ++#define DEFAULT_MTU 1500 ++#define DEFAULT_MRU 1500 ++ ++#define CTRL_URB_RX_SIZE 1024 ++#define CTRL_URB_TX_SIZE 64 ++ ++#define BULK_URB_RX_SIZE 4096 ++#define BULK_URB_TX_SIZE 8192 ++ ++#define MUX_BULK_RX_BUF_SIZE HSO__MAX_MTU ++#define MUX_BULK_TX_BUF_SIZE HSO__MAX_MTU ++#define MUX_BULK_RX_BUF_COUNT 4 ++#define USB_TYPE_OPTION_VENDOR 0x20 ++ ++/* These definitions are used with the struct hso_net flags element */ ++/* - use *_bit operations on it. (bit indices not values.) */ ++#define HSO_NET_RUNNING 0 ++ ++#define HSO_NET_TX_TIMEOUT (HZ*10) ++ ++/* Serial port defines and structs. */ ++#define HSO_SERIAL_FLAG_RX_SENT 0 ++ ++#define HSO_SERIAL_MAGIC 0x48534f31 ++ ++/* Number of ttys to handle */ ++#define HSO_SERIAL_TTY_MINORS 256 ++ ++#define MAX_RX_URBS 2 ++ ++#define get_serial_by_tty(x) \ ++ (x ? (struct hso_serial *)x->driver_data : NULL) ++ ++/*****************************************************************************/ ++/* Debugging functions */ ++/*****************************************************************************/ ++#define D__(lvl_, fmt, arg...) \ ++ do { \ ++ printk(lvl_ "[%d:%s]: " fmt "\n", \ ++ __LINE__, __func__, ## arg); \ ++ } while (0) ++ ++#define D_(lvl, args...) \ ++ do { \ ++ if (lvl & debug) \ ++ D__(KERN_INFO, args); \ ++ } while (0) ++ ++#define D1(args...) D_(0x01, ##args) ++#define D2(args...) D_(0x02, ##args) ++#define D3(args...) D_(0x04, ##args) ++#define D4(args...) D_(0x08, ##args) ++#define D5(args...) D_(0x10, ##args) ++ ++/*****************************************************************************/ ++/* Enumerators */ ++/*****************************************************************************/ ++enum pkt_parse_state { ++ WAIT_IP, ++ WAIT_DATA, ++ WAIT_SYNC ++}; ++ ++/*****************************************************************************/ ++/* Structs */ ++/*****************************************************************************/ ++ ++struct hso_shared_int { ++ struct usb_endpoint_descriptor *intr_endp; ++ void *shared_intr_buf; ++ struct urb *shared_intr_urb; ++ struct usb_device *usb; ++ int use_count; ++ int ref_count; ++ struct mutex shared_int_lock; ++}; ++ ++struct hso_net { ++ struct hso_device *parent; ++ struct net_device *net; ++ struct rfkill *rfkill; ++ ++ struct usb_endpoint_descriptor *in_endp; ++ struct usb_endpoint_descriptor *out_endp; ++ ++ struct urb *mux_bulk_rx_urb_pool[MUX_BULK_RX_BUF_COUNT]; ++ struct urb *mux_bulk_tx_urb; ++ void *mux_bulk_rx_buf_pool[MUX_BULK_RX_BUF_COUNT]; ++ void *mux_bulk_tx_buf; ++ ++ struct sk_buff *skb_rx_buf; ++ struct sk_buff *skb_tx_buf; ++ ++ enum pkt_parse_state rx_parse_state; ++ spinlock_t net_lock; ++ ++ unsigned short rx_buf_size; ++ unsigned short rx_buf_missing; ++ struct iphdr rx_ip_hdr; ++ ++ unsigned long flags; ++}; ++ ++struct hso_serial { ++ struct hso_device *parent; ++ int magic; ++ u8 minor; ++ ++ struct hso_shared_int *shared_int; ++ ++ /* rx/tx urb could be either a bulk urb or a control urb depending ++ on which serial port it is used on. */ ++ struct urb *rx_urb[MAX_RX_URBS]; ++ u8 num_rx_urbs; ++ u8 *rx_data[MAX_RX_URBS]; ++ u16 rx_data_length; /* should contain allocated length */ ++ ++ struct urb *tx_urb; ++ u8 *tx_data; ++ u8 *tx_buffer; ++ u16 tx_data_length; /* should contain allocated length */ ++ u16 tx_data_count; ++ u16 tx_buffer_count; ++ struct usb_ctrlrequest ctrl_req_tx; ++ struct usb_ctrlrequest ctrl_req_rx; ++ ++ struct usb_endpoint_descriptor *in_endp; ++ struct usb_endpoint_descriptor *out_endp; ++ ++ unsigned long flags; ++ u8 rts_state; ++ u8 dtr_state; ++ unsigned tx_urb_used:1; ++ ++ /* from usb_serial_port */ ++ struct tty_struct *tty; ++ int open_count; ++ spinlock_t serial_lock; ++ ++ int (*write_data) (struct hso_serial *serial); ++}; ++ ++struct hso_device { ++ union { ++ struct hso_serial *dev_serial; ++ struct hso_net *dev_net; ++ } port_data; ++ ++ u32 port_spec; ++ ++ u8 is_active; ++ u8 usb_gone; ++ struct work_struct async_get_intf; ++ struct work_struct async_put_intf; ++ ++ struct usb_device *usb; ++ struct usb_interface *interface; ++ ++ struct device *dev; ++ struct kref ref; ++ struct mutex mutex; ++}; ++ ++/* Type of interface */ ++#define HSO_INTF_MASK 0xFF00 ++#define HSO_INTF_MUX 0x0100 ++#define HSO_INTF_BULK 0x0200 ++ ++/* Type of port */ ++#define HSO_PORT_MASK 0xFF ++#define HSO_PORT_NO_PORT 0x0 ++#define HSO_PORT_CONTROL 0x1 ++#define HSO_PORT_APP 0x2 ++#define HSO_PORT_GPS 0x3 ++#define HSO_PORT_PCSC 0x4 ++#define HSO_PORT_APP2 0x5 ++#define HSO_PORT_GPS_CONTROL 0x6 ++#define HSO_PORT_MSD 0x7 ++#define HSO_PORT_VOICE 0x8 ++#define HSO_PORT_DIAG2 0x9 ++#define HSO_PORT_DIAG 0x10 ++#define HSO_PORT_MODEM 0x11 ++#define HSO_PORT_NETWORK 0x12 ++ ++/* Additional device info */ ++#define HSO_INFO_MASK 0xFF000000 ++#define HSO_INFO_CRC_BUG 0x01000000 ++ ++/*****************************************************************************/ ++/* Prototypes */ ++/*****************************************************************************/ ++/* Serial driver functions */ ++static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file, ++ unsigned int set, unsigned int clear); ++static void ctrl_callback(struct urb *urb); ++static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial); ++static void hso_kick_transmit(struct hso_serial *serial); ++/* Helper functions */ ++static int hso_mux_submit_intr_urb(struct hso_shared_int *mux_int, ++ struct usb_device *usb, gfp_t gfp); ++static void log_usb_status(int status, const char *function); ++static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf, ++ int type, int dir); ++static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports); ++static void hso_free_interface(struct usb_interface *intf); ++static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags); ++static int hso_stop_serial_device(struct hso_device *hso_dev); ++static int hso_start_net_device(struct hso_device *hso_dev); ++static void hso_free_shared_int(struct hso_shared_int *shared_int); ++static int hso_stop_net_device(struct hso_device *hso_dev); ++static void hso_serial_ref_free(struct kref *ref); ++static void async_get_intf(struct work_struct *data); ++static void async_put_intf(struct work_struct *data); ++static int hso_put_activity(struct hso_device *hso_dev); ++static int hso_get_activity(struct hso_device *hso_dev); ++ ++/*****************************************************************************/ ++/* Helping functions */ ++/*****************************************************************************/ ++ ++/* #define DEBUG */ ++ ++#define dev2net(x) (x->port_data.dev_net) ++#define dev2ser(x) (x->port_data.dev_serial) ++ ++/* Debugging functions */ ++#ifdef DEBUG ++static void dbg_dump(int line_count, const char *func_name, unsigned char *buf, ++ unsigned int len) ++{ ++ u8 i = 0; ++ ++ printk(KERN_DEBUG "[%d:%s]: len %d", line_count, func_name, len); ++ ++ for (i = 0; i < len; i++) { ++ if (!(i % 16)) ++ printk("\n 0x%03x: ", i); ++ printk("%02x ", (unsigned char)buf[i]); ++ } ++ printk("\n"); ++} ++ ++#define DUMP(buf_, len_) \ ++ dbg_dump(__LINE__, __func__, buf_, len_) ++ ++#define DUMP1(buf_, len_) \ ++ do { \ ++ if (0x01 & debug) \ ++ DUMP(buf_, len_); \ ++ } while (0) ++#else ++#define DUMP(buf_, len_) ++#define DUMP1(buf_, len_) ++#endif ++ ++/* module parameters */ ++static int debug; ++static int tty_major; ++static int disable_net; ++ ++/* driver info */ ++static const char driver_name[] = "hso"; ++static const char tty_filename[] = "ttyHS"; ++static const char *version = __FILE__ ": " DRIVER_VERSION " " MOD_AUTHOR; ++/* the usb driver itself (registered in hso_init) */ ++static struct usb_driver hso_driver; ++/* serial structures */ ++static struct tty_driver *tty_drv; ++static struct hso_device *serial_table[HSO_SERIAL_TTY_MINORS]; ++static struct hso_device *network_table[HSO_MAX_NET_DEVICES]; ++static spinlock_t serial_table_lock; ++static struct ktermios *hso_serial_termios[HSO_SERIAL_TTY_MINORS]; ++static struct ktermios *hso_serial_termios_locked[HSO_SERIAL_TTY_MINORS]; ++ ++static const s32 default_port_spec[] = { ++ HSO_INTF_MUX | HSO_PORT_NETWORK, ++ HSO_INTF_BULK | HSO_PORT_DIAG, ++ HSO_INTF_BULK | HSO_PORT_MODEM, ++ 0 ++}; ++ ++static const s32 icon321_port_spec[] = { ++ HSO_INTF_MUX | HSO_PORT_NETWORK, ++ HSO_INTF_BULK | HSO_PORT_DIAG2, ++ HSO_INTF_BULK | HSO_PORT_MODEM, ++ HSO_INTF_BULK | HSO_PORT_DIAG, ++ 0 ++}; ++ ++#define default_port_device(vendor, product) \ ++ USB_DEVICE(vendor, product), \ ++ .driver_info = (kernel_ulong_t)default_port_spec ++ ++#define icon321_port_device(vendor, product) \ ++ USB_DEVICE(vendor, product), \ ++ .driver_info = (kernel_ulong_t)icon321_port_spec ++ ++/* list of devices we support */ ++static const struct usb_device_id hso_ids[] = { ++ {default_port_device(0x0af0, 0x6711)}, ++ {default_port_device(0x0af0, 0x6731)}, ++ {default_port_device(0x0af0, 0x6751)}, ++ {default_port_device(0x0af0, 0x6771)}, ++ {default_port_device(0x0af0, 0x6791)}, ++ {default_port_device(0x0af0, 0x6811)}, ++ {default_port_device(0x0af0, 0x6911)}, ++ {default_port_device(0x0af0, 0x6951)}, ++ {default_port_device(0x0af0, 0x6971)}, ++ {default_port_device(0x0af0, 0x7011)}, ++ {default_port_device(0x0af0, 0x7031)}, ++ {default_port_device(0x0af0, 0x7051)}, ++ {default_port_device(0x0af0, 0x7071)}, ++ {default_port_device(0x0af0, 0x7111)}, ++ {default_port_device(0x0af0, 0x7211)}, ++ {default_port_device(0x0af0, 0x7251)}, ++ {default_port_device(0x0af0, 0x7271)}, ++ {default_port_device(0x0af0, 0x7311)}, ++ {default_port_device(0x0af0, 0xc031)}, /* Icon-Edge */ ++ {icon321_port_device(0x0af0, 0xd013)}, /* Module HSxPA */ ++ {icon321_port_device(0x0af0, 0xd031)}, /* Icon-321 */ ++ {default_port_device(0x0af0, 0xd033)}, /* Icon-322 */ ++ {USB_DEVICE(0x0af0, 0x7301)}, /* GE40x */ ++ {USB_DEVICE(0x0af0, 0x7361)}, /* GE40x */ ++ {USB_DEVICE(0x0af0, 0x7401)}, /* GI 0401 */ ++ {USB_DEVICE(0x0af0, 0x7501)}, /* GTM 382 */ ++ {USB_DEVICE(0x0af0, 0x7601)}, /* GE40x */ ++ {} ++}; ++MODULE_DEVICE_TABLE(usb, hso_ids); ++ ++/* Sysfs attribute */ ++static ssize_t hso_sysfs_show_porttype(struct device *dev, ++ struct device_attribute *attr, ++ char *buf) ++{ ++ struct hso_device *hso_dev = dev->driver_data; ++ char *port_name; ++ ++ if (!hso_dev) ++ return 0; ++ ++ switch (hso_dev->port_spec & HSO_PORT_MASK) { ++ case HSO_PORT_CONTROL: ++ port_name = "Control"; ++ break; ++ case HSO_PORT_APP: ++ port_name = "Application"; ++ break; ++ case HSO_PORT_APP2: ++ port_name = "Application2"; ++ break; ++ case HSO_PORT_GPS: ++ port_name = "GPS"; ++ break; ++ case HSO_PORT_GPS_CONTROL: ++ port_name = "GPS Control"; ++ break; ++ case HSO_PORT_PCSC: ++ port_name = "PCSC"; ++ break; ++ case HSO_PORT_DIAG: ++ port_name = "Diagnostic"; ++ break; ++ case HSO_PORT_DIAG2: ++ port_name = "Diagnostic2"; ++ break; ++ case HSO_PORT_MODEM: ++ port_name = "Modem"; ++ break; ++ case HSO_PORT_NETWORK: ++ port_name = "Network"; ++ break; ++ default: ++ port_name = "Unknown"; ++ break; ++ } ++ ++ return sprintf(buf, "%s\n", port_name); ++} ++static DEVICE_ATTR(hsotype, S_IRUGO, hso_sysfs_show_porttype, NULL); ++ ++/* converts mux value to a port spec value */ ++static u32 hso_mux_to_port(int mux) ++{ ++ u32 result; ++ ++ switch (mux) { ++ case 0x1: ++ result = HSO_PORT_CONTROL; ++ break; ++ case 0x2: ++ result = HSO_PORT_APP; ++ break; ++ case 0x4: ++ result = HSO_PORT_PCSC; ++ break; ++ case 0x8: ++ result = HSO_PORT_GPS; ++ break; ++ case 0x10: ++ result = HSO_PORT_APP2; ++ break; ++ default: ++ result = HSO_PORT_NO_PORT; ++ } ++ return result; ++} ++ ++/* converts port spec value to a mux value */ ++static u32 hso_port_to_mux(int port) ++{ ++ u32 result; ++ ++ switch (port & HSO_PORT_MASK) { ++ case HSO_PORT_CONTROL: ++ result = 0x0; ++ break; ++ case HSO_PORT_APP: ++ result = 0x1; ++ break; ++ case HSO_PORT_PCSC: ++ result = 0x2; ++ break; ++ case HSO_PORT_GPS: ++ result = 0x3; ++ break; ++ case HSO_PORT_APP2: ++ result = 0x4; ++ break; ++ default: ++ result = 0x0; ++ } ++ return result; ++} ++ ++static struct hso_serial *get_serial_by_shared_int_and_type( ++ struct hso_shared_int *shared_int, ++ int mux) ++{ ++ int i, port; ++ ++ port = hso_mux_to_port(mux); ++ ++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { ++ if (serial_table[i] ++ && (dev2ser(serial_table[i])->shared_int == shared_int) ++ && ((serial_table[i]->port_spec & HSO_PORT_MASK) == port)) { ++ return dev2ser(serial_table[i]); ++ } ++ } ++ ++ return NULL; ++} ++ ++static struct hso_serial *get_serial_by_index(unsigned index) ++{ ++ struct hso_serial *serial; ++ unsigned long flags; ++ ++ if (!serial_table[index]) ++ return NULL; ++ spin_lock_irqsave(&serial_table_lock, flags); ++ serial = dev2ser(serial_table[index]); ++ spin_unlock_irqrestore(&serial_table_lock, flags); ++ ++ return serial; ++} ++ ++static int get_free_serial_index(void) ++{ ++ int index; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&serial_table_lock, flags); ++ for (index = 0; index < HSO_SERIAL_TTY_MINORS; index++) { ++ if (serial_table[index] == NULL) { ++ spin_unlock_irqrestore(&serial_table_lock, flags); ++ return index; ++ } ++ } ++ spin_unlock_irqrestore(&serial_table_lock, flags); ++ ++ printk(KERN_ERR "%s: no free serial devices in table\n", __func__); ++ return -1; ++} ++ ++static void set_serial_by_index(unsigned index, struct hso_serial *serial) ++{ ++ unsigned long flags; ++ spin_lock_irqsave(&serial_table_lock, flags); ++ if (serial) ++ serial_table[index] = serial->parent; ++ else ++ serial_table[index] = NULL; ++ spin_unlock_irqrestore(&serial_table_lock, flags); ++} ++ ++/* log a meaningfull explanation of an USB status */ ++static void log_usb_status(int status, const char *function) ++{ ++ char *explanation; ++ ++ switch (status) { ++ case -ENODEV: ++ explanation = "no device"; ++ break; ++ case -ENOENT: ++ explanation = "endpoint not enabled"; ++ break; ++ case -EPIPE: ++ explanation = "endpoint stalled"; ++ break; ++ case -ENOSPC: ++ explanation = "not enough bandwidth"; ++ break; ++ case -ESHUTDOWN: ++ explanation = "device disabled"; ++ break; ++ case -EHOSTUNREACH: ++ explanation = "device suspended"; ++ break; ++ case -EINVAL: ++ case -EAGAIN: ++ case -EFBIG: ++ case -EMSGSIZE: ++ explanation = "internal error"; ++ break; ++ default: ++ explanation = "unknown status"; ++ break; ++ } ++ D1("%s: received USB status - %s (%d)", function, explanation, status); ++} ++ ++/* Network interface functions */ ++ ++/* called when net interface is brought up by ifconfig */ ++static int hso_net_open(struct net_device *net) ++{ ++ struct hso_net *odev = netdev_priv(net); ++ unsigned long flags = 0; ++ ++ if (!odev) { ++ dev_err(&net->dev, "No net device !\n"); ++ return -ENODEV; ++ } ++ ++ odev->skb_tx_buf = NULL; ++ ++ /* setup environment */ ++ spin_lock_irqsave(&odev->net_lock, flags); ++ odev->rx_parse_state = WAIT_IP; ++ odev->rx_buf_size = 0; ++ odev->rx_buf_missing = sizeof(struct iphdr); ++ spin_unlock_irqrestore(&odev->net_lock, flags); ++ ++ hso_start_net_device(odev->parent); ++ ++ /* We are up and running. */ ++ set_bit(HSO_NET_RUNNING, &odev->flags); ++ ++ /* Tell the kernel we are ready to start receiving from it */ ++ netif_start_queue(net); ++ ++ return 0; ++} ++ ++/* called when interface is brought down by ifconfig */ ++static int hso_net_close(struct net_device *net) ++{ ++ struct hso_net *odev = netdev_priv(net); ++ ++ /* we don't need the queue anymore */ ++ netif_stop_queue(net); ++ /* no longer running */ ++ clear_bit(HSO_NET_RUNNING, &odev->flags); ++ ++ hso_stop_net_device(odev->parent); ++ ++ /* done */ ++ return 0; ++} ++ ++/* USB tells is xmit done, we should start the netqueue again */ ++static void write_bulk_callback(struct urb *urb) ++{ ++ struct hso_net *odev = urb->context; ++ int status = urb->status; ++ ++ /* Sanity check */ ++ if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) { ++ dev_err(&urb->dev->dev, "%s: device not running\n", __func__); ++ return; ++ } ++ ++ /* Do we still have a valid kernel network device? */ ++ if (!netif_device_present(odev->net)) { ++ dev_err(&urb->dev->dev, "%s: net device not present\n", ++ __func__); ++ return; ++ } ++ ++ /* log status, but don't act on it, we don't need to resubmit anything ++ * anyhow */ ++ if (status) ++ log_usb_status(status, __func__); ++ ++ hso_put_activity(odev->parent); ++ ++ /* Tell the network interface we are ready for another frame */ ++ netif_wake_queue(odev->net); ++} ++ ++/* called by kernel when we need to transmit a packet */ ++static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net) ++{ ++ struct hso_net *odev = netdev_priv(net); ++ int result; ++ ++ /* Tell the kernel, "No more frames 'til we are done with this one." */ ++ netif_stop_queue(net); ++ if (hso_get_activity(odev->parent) == -EAGAIN) { ++ odev->skb_tx_buf = skb; ++ return 0; ++ } ++ ++ /* log if asked */ ++ DUMP1(skb->data, skb->len); ++ /* Copy it from kernel memory to OUR memory */ ++ memcpy(odev->mux_bulk_tx_buf, skb->data, skb->len); ++ D1("len: %d/%d", skb->len, MUX_BULK_TX_BUF_SIZE); ++ ++ /* Fill in the URB for shipping it out. */ ++ usb_fill_bulk_urb(odev->mux_bulk_tx_urb, ++ odev->parent->usb, ++ usb_sndbulkpipe(odev->parent->usb, ++ odev->out_endp-> ++ bEndpointAddress & 0x7F), ++ odev->mux_bulk_tx_buf, skb->len, write_bulk_callback, ++ odev); ++ ++ /* Deal with the Zero Length packet problem, I hope */ ++ odev->mux_bulk_tx_urb->transfer_flags |= URB_ZERO_PACKET; ++ ++ /* Send the URB on its merry way. */ ++ result = usb_submit_urb(odev->mux_bulk_tx_urb, GFP_ATOMIC); ++ if (result) { ++ dev_warn(&odev->parent->interface->dev, ++ "failed mux_bulk_tx_urb %d", result); ++ net->stats.tx_errors++; ++ netif_start_queue(net); ++ } else { ++ net->stats.tx_packets++; ++ net->stats.tx_bytes += skb->len; ++ /* And tell the kernel when the last transmit started. */ ++ net->trans_start = jiffies; ++ } ++ dev_kfree_skb(skb); ++ /* we're done */ ++ return result; ++} ++ ++static void hso_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) ++{ ++ struct hso_net *odev = netdev_priv(net); ++ ++ strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); ++ strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); ++ usb_make_path(odev->parent->usb, info->bus_info, sizeof info->bus_info); ++} ++ ++static struct ethtool_ops ops = { ++ .get_drvinfo = hso_get_drvinfo, ++ .get_link = ethtool_op_get_link ++}; ++ ++/* called when a packet did not ack after watchdogtimeout */ ++static void hso_net_tx_timeout(struct net_device *net) ++{ ++ struct hso_net *odev = netdev_priv(net); ++ ++ if (!odev) ++ return; ++ ++ /* Tell syslog we are hosed. */ ++ dev_warn(&net->dev, "Tx timed out.\n"); ++ ++ /* Tear the waiting frame off the list */ ++ if (odev->mux_bulk_tx_urb ++ && (odev->mux_bulk_tx_urb->status == -EINPROGRESS)) ++ usb_unlink_urb(odev->mux_bulk_tx_urb); ++ ++ /* Update statistics */ ++ net->stats.tx_errors++; ++} ++ ++/* make a real packet from the received USB buffer */ ++static void packetizeRx(struct hso_net *odev, unsigned char *ip_pkt, ++ unsigned int count, unsigned char is_eop) ++{ ++ unsigned short temp_bytes; ++ unsigned short buffer_offset = 0; ++ unsigned short frame_len; ++ unsigned char *tmp_rx_buf; ++ ++ /* log if needed */ ++ D1("Rx %d bytes", count); ++ DUMP(ip_pkt, min(128, (int)count)); ++ ++ while (count) { ++ switch (odev->rx_parse_state) { ++ case WAIT_IP: ++ /* waiting for IP header. */ ++ /* wanted bytes - size of ip header */ ++ temp_bytes = ++ (count < ++ odev->rx_buf_missing) ? count : odev-> ++ rx_buf_missing; ++ ++ memcpy(((unsigned char *)(&odev->rx_ip_hdr)) + ++ odev->rx_buf_size, ip_pkt + buffer_offset, ++ temp_bytes); ++ ++ odev->rx_buf_size += temp_bytes; ++ buffer_offset += temp_bytes; ++ odev->rx_buf_missing -= temp_bytes; ++ count -= temp_bytes; ++ ++ if (!odev->rx_buf_missing) { ++ /* header is complete allocate an sk_buffer and ++ * continue to WAIT_DATA */ ++ frame_len = ntohs(odev->rx_ip_hdr.tot_len); ++ ++ if ((frame_len > DEFAULT_MRU) || ++ (frame_len < sizeof(struct iphdr))) { ++ dev_err(&odev->net->dev, ++ "Invalid frame (%d) length\n", ++ frame_len); ++ odev->rx_parse_state = WAIT_SYNC; ++ continue; ++ } ++ /* Allocate an sk_buff */ ++ odev->skb_rx_buf = dev_alloc_skb(frame_len); ++ if (!odev->skb_rx_buf) { ++ /* We got no receive buffer. */ ++ D1("could not allocate memory"); ++ odev->rx_parse_state = WAIT_SYNC; ++ return; ++ } ++ /* Here's where it came from */ ++ odev->skb_rx_buf->dev = odev->net; ++ ++ /* Copy what we got so far. make room for iphdr ++ * after tail. */ ++ tmp_rx_buf = ++ skb_put(odev->skb_rx_buf, ++ sizeof(struct iphdr)); ++ memcpy(tmp_rx_buf, (char *)&(odev->rx_ip_hdr), ++ sizeof(struct iphdr)); ++ ++ /* ETH_HLEN */ ++ odev->rx_buf_size = sizeof(struct iphdr); ++ ++ /* Filip actually use .tot_len */ ++ odev->rx_buf_missing = ++ frame_len - sizeof(struct iphdr); ++ odev->rx_parse_state = WAIT_DATA; ++ } ++ break; ++ ++ case WAIT_DATA: ++ temp_bytes = (count < odev->rx_buf_missing) ++ ? count : odev->rx_buf_missing; ++ ++ /* Copy the rest of the bytes that are left in the ++ * buffer into the waiting sk_buf. */ ++ /* Make room for temp_bytes after tail. */ ++ tmp_rx_buf = skb_put(odev->skb_rx_buf, temp_bytes); ++ memcpy(tmp_rx_buf, ip_pkt + buffer_offset, temp_bytes); ++ ++ odev->rx_buf_missing -= temp_bytes; ++ count -= temp_bytes; ++ buffer_offset += temp_bytes; ++ odev->rx_buf_size += temp_bytes; ++ if (!odev->rx_buf_missing) { ++ /* Packet is complete. Inject into stack. */ ++ /* We have IP packet here */ ++ odev->skb_rx_buf->protocol = ++ __constant_htons(ETH_P_IP); ++ /* don't check it */ ++ odev->skb_rx_buf->ip_summed = ++ CHECKSUM_UNNECESSARY; ++ ++ skb_reset_mac_header(odev->skb_rx_buf); ++ ++ /* Ship it off to the kernel */ ++ netif_rx(odev->skb_rx_buf); ++ /* No longer our buffer. */ ++ odev->skb_rx_buf = NULL; ++ ++ /* update out statistics */ ++ odev->net->stats.rx_packets++; ++ ++ odev->net->stats.rx_bytes += odev->rx_buf_size; ++ ++ odev->rx_buf_size = 0; ++ odev->rx_buf_missing = sizeof(struct iphdr); ++ odev->rx_parse_state = WAIT_IP; ++ } ++ break; ++ ++ case WAIT_SYNC: ++ D1(" W_S"); ++ count = 0; ++ break; ++ default: ++ D1(" "); ++ count--; ++ break; ++ } ++ } ++ ++ /* Recovery mechanism for WAIT_SYNC state. */ ++ if (is_eop) { ++ if (odev->rx_parse_state == WAIT_SYNC) { ++ odev->rx_parse_state = WAIT_IP; ++ odev->rx_buf_size = 0; ++ odev->rx_buf_missing = sizeof(struct iphdr); ++ } ++ } ++} ++ ++/* Moving data from usb to kernel (in interrupt state) */ ++static void read_bulk_callback(struct urb *urb) ++{ ++ struct hso_net *odev = urb->context; ++ struct net_device *net; ++ int result; ++ int status = urb->status; ++ ++ /* is al ok? (Filip: Who's Al ?) */ ++ if (status) { ++ log_usb_status(status, __func__); ++ return; ++ } ++ ++ /* Sanity check */ ++ if (!odev || !test_bit(HSO_NET_RUNNING, &odev->flags)) { ++ D1("BULK IN callback but driver is not active!"); ++ return; ++ } ++ usb_mark_last_busy(urb->dev); ++ ++ net = odev->net; ++ ++ if (!netif_device_present(net)) { ++ /* Somebody killed our network interface... */ ++ return; ++ } ++ ++ if (odev->parent->port_spec & HSO_INFO_CRC_BUG) { ++ u32 rest; ++ u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF }; ++ rest = urb->actual_length % odev->in_endp->wMaxPacketSize; ++ if (((rest == 5) || (rest == 6)) ++ && !memcmp(((u8 *) urb->transfer_buffer) + ++ urb->actual_length - 4, crc_check, 4)) { ++ urb->actual_length -= 4; ++ } ++ } ++ ++ /* do we even have a packet? */ ++ if (urb->actual_length) { ++ /* Handle the IP stream, add header and push it onto network ++ * stack if the packet is complete. */ ++ spin_lock(&odev->net_lock); ++ packetizeRx(odev, urb->transfer_buffer, urb->actual_length, ++ (urb->transfer_buffer_length > ++ urb->actual_length) ? 1 : 0); ++ spin_unlock(&odev->net_lock); ++ } ++ ++ /* We are done with this URB, resubmit it. Prep the USB to wait for ++ * another frame. Reuse same as received. */ ++ usb_fill_bulk_urb(urb, ++ odev->parent->usb, ++ usb_rcvbulkpipe(odev->parent->usb, ++ odev->in_endp-> ++ bEndpointAddress & 0x7F), ++ urb->transfer_buffer, MUX_BULK_RX_BUF_SIZE, ++ read_bulk_callback, odev); ++ ++ /* Give this to the USB subsystem so it can tell us when more data ++ * arrives. */ ++ result = usb_submit_urb(urb, GFP_ATOMIC); ++ if (result) ++ dev_warn(&odev->parent->interface->dev, ++ "%s failed submit mux_bulk_rx_urb %d", __func__, ++ result); ++} ++ ++/* Serial driver functions */ ++ ++static void _hso_serial_set_termios(struct tty_struct *tty, ++ struct ktermios *old) ++{ ++ struct hso_serial *serial = get_serial_by_tty(tty); ++ struct ktermios *termios; ++ ++ if ((!tty) || (!tty->termios) || (!serial)) { ++ printk(KERN_ERR "%s: no tty structures", __func__); ++ return; ++ } ++ ++ D4("port %d", serial->minor); ++ ++ /* ++ * The default requirements for this device are: ++ */ ++ termios = tty->termios; ++ termios->c_iflag &= ++ ~(IGNBRK /* disable ignore break */ ++ | BRKINT /* disable break causes interrupt */ ++ | PARMRK /* disable mark parity errors */ ++ | ISTRIP /* disable clear high bit of input characters */ ++ | INLCR /* disable translate NL to CR */ ++ | IGNCR /* disable ignore CR */ ++ | ICRNL /* disable translate CR to NL */ ++ | IXON); /* disable enable XON/XOFF flow control */ ++ ++ /* disable postprocess output characters */ ++ termios->c_oflag &= ~OPOST; ++ ++ termios->c_lflag &= ++ ~(ECHO /* disable echo input characters */ ++ | ECHONL /* disable echo new line */ ++ | ICANON /* disable erase, kill, werase, and rprnt ++ special characters */ ++ | ISIG /* disable interrupt, quit, and suspend special ++ characters */ ++ | IEXTEN); /* disable non-POSIX special characters */ ++ ++ termios->c_cflag &= ++ ~(CSIZE /* no size */ ++ | PARENB /* disable parity bit */ ++ | CBAUD /* clear current baud rate */ ++ | CBAUDEX); /* clear current buad rate */ ++ ++ termios->c_cflag |= CS8; /* character size 8 bits */ ++ ++ /* baud rate 115200 */ ++ tty_encode_baud_rate(serial->tty, 115200, 115200); ++ ++ /* ++ * Force low_latency on; otherwise the pushes are scheduled; ++ * this is bad as it opens up the possibility of dropping bytes ++ * on the floor. We don't want to drop bytes on the floor. :) ++ */ ++ serial->tty->low_latency = 1; ++ return; ++} ++ ++/* open the requested serial port */ ++static int hso_serial_open(struct tty_struct *tty, struct file *filp) ++{ ++ struct hso_serial *serial = get_serial_by_index(tty->index); ++ int result; ++ ++ /* sanity check */ ++ if (serial == NULL || serial->magic != HSO_SERIAL_MAGIC) { ++ tty->driver_data = NULL; ++ D1("Failed to open port"); ++ return -ENODEV; ++ } ++ ++ mutex_lock(&serial->parent->mutex); ++ result = usb_autopm_get_interface(serial->parent->interface); ++ if (result < 0) ++ goto err_out; ++ ++ D1("Opening %d", serial->minor); ++ kref_get(&serial->parent->ref); ++ ++ /* setup */ ++ tty->driver_data = serial; ++ serial->tty = tty; ++ ++ /* check for port allready opened, if not set the termios */ ++ serial->open_count++; ++ if (serial->open_count == 1) { ++ tty->low_latency = 1; ++ serial->flags = 0; ++ /* Force default termio settings */ ++ _hso_serial_set_termios(tty, NULL); ++ result = hso_start_serial_device(serial->parent, GFP_KERNEL); ++ if (result) { ++ hso_stop_serial_device(serial->parent); ++ serial->open_count--; ++ kref_put(&serial->parent->ref, hso_serial_ref_free); ++ } ++ } else { ++ D1("Port was already open"); ++ } ++ ++ usb_autopm_put_interface(serial->parent->interface); ++ ++ /* done */ ++ if (result) ++ hso_serial_tiocmset(tty, NULL, TIOCM_RTS | TIOCM_DTR, 0); ++err_out: ++ mutex_unlock(&serial->parent->mutex); ++ return result; ++} ++ ++/* close the requested serial port */ ++static void hso_serial_close(struct tty_struct *tty, struct file *filp) ++{ ++ struct hso_serial *serial = tty->driver_data; ++ u8 usb_gone; ++ ++ D1("Closing serial port"); ++ ++ mutex_lock(&serial->parent->mutex); ++ usb_gone = serial->parent->usb_gone; ++ ++ if (!usb_gone) ++ usb_autopm_get_interface(serial->parent->interface); ++ ++ /* reset the rts and dtr */ ++ /* do the actual close */ ++ serial->open_count--; ++ if (serial->open_count <= 0) { ++ kref_put(&serial->parent->ref, hso_serial_ref_free); ++ serial->open_count = 0; ++ if (serial->tty) { ++ serial->tty->driver_data = NULL; ++ serial->tty = NULL; ++ } ++ if (!usb_gone) ++ hso_stop_serial_device(serial->parent); ++ } ++ if (!usb_gone) ++ usb_autopm_put_interface(serial->parent->interface); ++ mutex_unlock(&serial->parent->mutex); ++} ++ ++/* close the requested serial port */ ++static int hso_serial_write(struct tty_struct *tty, const unsigned char *buf, ++ int count) ++{ ++ struct hso_serial *serial = get_serial_by_tty(tty); ++ int space, tx_bytes; ++ unsigned long flags; ++ ++ /* sanity check */ ++ if (serial == NULL) { ++ printk(KERN_ERR "%s: serial is NULL\n", __func__); ++ return -ENODEV; ++ } ++ ++ spin_lock_irqsave(&serial->serial_lock, flags); ++ ++ space = serial->tx_data_length - serial->tx_buffer_count; ++ tx_bytes = (count < space) ? count : space; ++ ++ if (!tx_bytes) ++ goto out; ++ ++ memcpy(serial->tx_buffer + serial->tx_buffer_count, buf, tx_bytes); ++ serial->tx_buffer_count += tx_bytes; ++ ++out: ++ spin_unlock_irqrestore(&serial->serial_lock, flags); ++ ++ hso_kick_transmit(serial); ++ /* done */ ++ return tx_bytes; ++} ++ ++/* how much room is there for writing */ ++static int hso_serial_write_room(struct tty_struct *tty) ++{ ++ struct hso_serial *serial = get_serial_by_tty(tty); ++ int room; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&serial->serial_lock, flags); ++ room = serial->tx_data_length - serial->tx_buffer_count; ++ spin_unlock_irqrestore(&serial->serial_lock, flags); ++ ++ /* return free room */ ++ return room; ++} ++ ++/* setup the term */ ++static void hso_serial_set_termios(struct tty_struct *tty, struct ktermios *old) ++{ ++ struct hso_serial *serial = get_serial_by_tty(tty); ++ unsigned long flags; ++ ++ if (old) ++ D5("Termios called with: cflags new[%d] - old[%d]", ++ tty->termios->c_cflag, old->c_cflag); ++ ++ /* the actual setup */ ++ spin_lock_irqsave(&serial->serial_lock, flags); ++ if (serial->open_count) ++ _hso_serial_set_termios(tty, old); ++ else ++ tty->termios = old; ++ spin_unlock_irqrestore(&serial->serial_lock, flags); ++ ++ /* done */ ++ return; ++} ++ ++/* how many characters in the buffer */ ++static int hso_serial_chars_in_buffer(struct tty_struct *tty) ++{ ++ struct hso_serial *serial = get_serial_by_tty(tty); ++ int chars; ++ unsigned long flags; ++ ++ /* sanity check */ ++ if (serial == NULL) ++ return 0; ++ ++ spin_lock_irqsave(&serial->serial_lock, flags); ++ chars = serial->tx_buffer_count; ++ spin_unlock_irqrestore(&serial->serial_lock, flags); ++ ++ return chars; ++} ++ ++static int hso_serial_tiocmget(struct tty_struct *tty, struct file *file) ++{ ++ unsigned int value; ++ struct hso_serial *serial = get_serial_by_tty(tty); ++ unsigned long flags; ++ ++ /* sanity check */ ++ if (!serial) { ++ D1("no tty structures"); ++ return -EINVAL; ++ } ++ ++ spin_lock_irqsave(&serial->serial_lock, flags); ++ value = ((serial->rts_state) ? TIOCM_RTS : 0) | ++ ((serial->dtr_state) ? TIOCM_DTR : 0); ++ spin_unlock_irqrestore(&serial->serial_lock, flags); ++ ++ return value; ++} ++ ++static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file, ++ unsigned int set, unsigned int clear) ++{ ++ int val = 0; ++ unsigned long flags; ++ int if_num; ++ struct hso_serial *serial = get_serial_by_tty(tty); ++ ++ /* sanity check */ ++ if (!serial) { ++ D1("no tty structures"); ++ return -EINVAL; ++ } ++ if_num = serial->parent->interface->altsetting->desc.bInterfaceNumber; ++ ++ spin_lock_irqsave(&serial->serial_lock, flags); ++ if (set & TIOCM_RTS) ++ serial->rts_state = 1; ++ if (set & TIOCM_DTR) ++ serial->dtr_state = 1; ++ ++ if (clear & TIOCM_RTS) ++ serial->rts_state = 0; ++ if (clear & TIOCM_DTR) ++ serial->dtr_state = 0; ++ ++ if (serial->dtr_state) ++ val |= 0x01; ++ if (serial->rts_state) ++ val |= 0x02; ++ ++ spin_unlock_irqrestore(&serial->serial_lock, flags); ++ ++ return usb_control_msg(serial->parent->usb, ++ usb_rcvctrlpipe(serial->parent->usb, 0), 0x22, ++ 0x21, val, if_num, NULL, 0, ++ USB_CTRL_SET_TIMEOUT); ++} ++ ++/* starts a transmit */ ++static void hso_kick_transmit(struct hso_serial *serial) ++{ ++ u8 *temp; ++ unsigned long flags; ++ int res; ++ ++ spin_lock_irqsave(&serial->serial_lock, flags); ++ if (!serial->tx_buffer_count) ++ goto out; ++ ++ if (serial->tx_urb_used) ++ goto out; ++ ++ /* Wakeup USB interface if necessary */ ++ if (hso_get_activity(serial->parent) == -EAGAIN) ++ goto out; ++ ++ /* Switch pointers around to avoid memcpy */ ++ temp = serial->tx_buffer; ++ serial->tx_buffer = serial->tx_data; ++ serial->tx_data = temp; ++ serial->tx_data_count = serial->tx_buffer_count; ++ serial->tx_buffer_count = 0; ++ ++ /* If temp is set, it means we switched buffers */ ++ if (temp && serial->write_data) { ++ res = serial->write_data(serial); ++ if (res >= 0) ++ serial->tx_urb_used = 1; ++ } ++out: ++ spin_unlock_irqrestore(&serial->serial_lock, flags); ++} ++ ++/* make a request (for reading and writing data to muxed serial port) */ ++static int mux_device_request(struct hso_serial *serial, u8 type, u16 port, ++ struct urb *ctrl_urb, ++ struct usb_ctrlrequest *ctrl_req, ++ u8 *ctrl_urb_data, u32 size) ++{ ++ int result; ++ int pipe; ++ ++ /* Sanity check */ ++ if (!serial || !ctrl_urb || !ctrl_req) { ++ printk(KERN_ERR "%s: Wrong arguments\n", __func__); ++ return -EINVAL; ++ } ++ ++ /* initialize */ ++ ctrl_req->wValue = 0; ++ ctrl_req->wIndex = hso_port_to_mux(port); ++ ctrl_req->wLength = size; ++ ++ if (type == USB_CDC_GET_ENCAPSULATED_RESPONSE) { ++ /* Reading command */ ++ ctrl_req->bRequestType = USB_DIR_IN | ++ USB_TYPE_OPTION_VENDOR | ++ USB_RECIP_INTERFACE; ++ ctrl_req->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE; ++ pipe = usb_rcvctrlpipe(serial->parent->usb, 0); ++ } else { ++ /* Writing command */ ++ ctrl_req->bRequestType = USB_DIR_OUT | ++ USB_TYPE_OPTION_VENDOR | ++ USB_RECIP_INTERFACE; ++ ctrl_req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND; ++ pipe = usb_sndctrlpipe(serial->parent->usb, 0); ++ } ++ /* syslog */ ++ D2("%s command (%02x) len: %d, port: %d", ++ type == USB_CDC_GET_ENCAPSULATED_RESPONSE ? "Read" : "Write", ++ ctrl_req->bRequestType, ctrl_req->wLength, port); ++ ++ /* Load ctrl urb */ ++ ctrl_urb->transfer_flags = 0; ++ usb_fill_control_urb(ctrl_urb, ++ serial->parent->usb, ++ pipe, ++ (u8 *) ctrl_req, ++ ctrl_urb_data, size, ctrl_callback, serial); ++ /* Send it on merry way */ ++ result = usb_submit_urb(ctrl_urb, GFP_ATOMIC); ++ if (result) { ++ dev_err(&ctrl_urb->dev->dev, ++ "%s failed submit ctrl_urb %d type %d", __func__, ++ result, type); ++ return result; ++ } ++ ++ /* done */ ++ return size; ++} ++ ++/* called by intr_callback when read occurs */ ++static int hso_mux_serial_read(struct hso_serial *serial) ++{ ++ if (!serial) ++ return -EINVAL; ++ ++ /* clean data */ ++ memset(serial->rx_data[0], 0, CTRL_URB_RX_SIZE); ++ /* make the request */ ++ ++ if (serial->num_rx_urbs != 1) { ++ dev_err(&serial->parent->interface->dev, ++ "ERROR: mux'd reads with multiple buffers " ++ "not possible\n"); ++ return 0; ++ } ++ return mux_device_request(serial, ++ USB_CDC_GET_ENCAPSULATED_RESPONSE, ++ serial->parent->port_spec & HSO_PORT_MASK, ++ serial->rx_urb[0], ++ &serial->ctrl_req_rx, ++ serial->rx_data[0], serial->rx_data_length); ++} ++ ++/* used for muxed serial port callback (muxed serial read) */ ++static void intr_callback(struct urb *urb) ++{ ++ struct hso_shared_int *shared_int = urb->context; ++ struct hso_serial *serial; ++ unsigned char *port_req; ++ int status = urb->status; ++ int i; ++ ++ usb_mark_last_busy(urb->dev); ++ ++ /* sanity check */ ++ if (!shared_int) ++ return; ++ ++ /* status check */ ++ if (status) { ++ log_usb_status(status, __func__); ++ return; ++ } ++ D4("\n--- Got intr callback 0x%02X ---", status); ++ ++ /* what request? */ ++ port_req = urb->transfer_buffer; ++ D4(" port_req = 0x%.2X\n", *port_req); ++ /* loop over all muxed ports to find the one sending this */ ++ for (i = 0; i < 8; i++) { ++ /* max 8 channels on MUX */ ++ if (*port_req & (1 << i)) { ++ serial = get_serial_by_shared_int_and_type(shared_int, ++ (1 << i)); ++ if (serial != NULL) { ++ D1("Pending read interrupt on port %d\n", i); ++ if (!test_and_set_bit(HSO_SERIAL_FLAG_RX_SENT, ++ &serial->flags)) { ++ /* Setup and send a ctrl req read on ++ * port i */ ++ hso_mux_serial_read(serial); ++ } else { ++ D1("Already pending a read on " ++ "port %d\n", i); ++ } ++ } ++ } ++ } ++ /* Resubmit interrupt urb */ ++ hso_mux_submit_intr_urb(shared_int, urb->dev, GFP_ATOMIC); ++} ++ ++/* called for writing to muxed serial port */ ++static int hso_mux_serial_write_data(struct hso_serial *serial) ++{ ++ if (NULL == serial) ++ return -EINVAL; ++ ++ return mux_device_request(serial, ++ USB_CDC_SEND_ENCAPSULATED_COMMAND, ++ serial->parent->port_spec & HSO_PORT_MASK, ++ serial->tx_urb, ++ &serial->ctrl_req_tx, ++ serial->tx_data, serial->tx_data_count); ++} ++ ++/* write callback for Diag and CS port */ ++static void hso_std_serial_write_bulk_callback(struct urb *urb) ++{ ++ struct hso_serial *serial = urb->context; ++ int status = urb->status; ++ ++ /* sanity check */ ++ if (!serial) { ++ D1("serial == NULL"); ++ return; ++ } ++ ++ spin_lock(&serial->serial_lock); ++ serial->tx_urb_used = 0; ++ spin_unlock(&serial->serial_lock); ++ if (status) { ++ log_usb_status(status, __func__); ++ return; ++ } ++ hso_put_activity(serial->parent); ++ tty_wakeup(serial->tty); ++ hso_kick_transmit(serial); ++ ++ D1(" "); ++ return; ++} ++ ++/* called for writing diag or CS serial port */ ++static int hso_std_serial_write_data(struct hso_serial *serial) ++{ ++ int count = serial->tx_data_count; ++ int result; ++ ++ usb_fill_bulk_urb(serial->tx_urb, ++ serial->parent->usb, ++ usb_sndbulkpipe(serial->parent->usb, ++ serial->out_endp-> ++ bEndpointAddress & 0x7F), ++ serial->tx_data, serial->tx_data_count, ++ hso_std_serial_write_bulk_callback, serial); ++ ++ result = usb_submit_urb(serial->tx_urb, GFP_ATOMIC); ++ if (result) { ++ dev_warn(&serial->parent->usb->dev, ++ "Failed to submit urb - res %d\n", result); ++ return result; ++ } ++ ++ return count; ++} ++ ++/* callback after read or write on muxed serial port */ ++static void ctrl_callback(struct urb *urb) ++{ ++ struct hso_serial *serial = urb->context; ++ struct usb_ctrlrequest *req; ++ int status = urb->status; ++ ++ /* sanity check */ ++ if (!serial) ++ return; ++ ++ spin_lock(&serial->serial_lock); ++ serial->tx_urb_used = 0; ++ spin_unlock(&serial->serial_lock); ++ if (status) { ++ log_usb_status(status, __func__); ++ return; ++ } ++ ++ /* what request? */ ++ req = (struct usb_ctrlrequest *)(urb->setup_packet); ++ D4("\n--- Got muxed ctrl callback 0x%02X ---", status); ++ D4("Actual length of urb = %d\n", urb->actual_length); ++ DUMP1(urb->transfer_buffer, urb->actual_length); ++ ++ if (req->bRequestType == ++ (USB_DIR_IN | USB_TYPE_OPTION_VENDOR | USB_RECIP_INTERFACE)) { ++ /* response to a read command */ ++ if (serial->open_count > 0) { ++ /* handle RX data the normal way */ ++ put_rxbuf_data(urb, serial); ++ } ++ ++ /* Re issue a read as long as we receive data. */ ++ if (urb->actual_length != 0) ++ hso_mux_serial_read(serial); ++ else ++ clear_bit(HSO_SERIAL_FLAG_RX_SENT, &serial->flags); ++ } else { ++ hso_put_activity(serial->parent); ++ tty_wakeup(serial->tty); ++ /* response to a write command */ ++ hso_kick_transmit(serial); ++ } ++} ++ ++/* handle RX data for serial port */ ++static void put_rxbuf_data(struct urb *urb, struct hso_serial *serial) ++{ ++ struct tty_struct *tty = serial->tty; ++ ++ /* Sanity check */ ++ if (urb == NULL || serial == NULL) { ++ D1("serial = NULL"); ++ return; ++ } ++ ++ /* Push data to tty */ ++ if (tty && urb->actual_length) { ++ D1("data to push to tty"); ++ tty_insert_flip_string(tty, urb->transfer_buffer, ++ urb->actual_length); ++ tty_flip_buffer_push(tty); ++ } ++} ++ ++/* read callback for Diag and CS port */ ++static void hso_std_serial_read_bulk_callback(struct urb *urb) ++{ ++ struct hso_serial *serial = urb->context; ++ int result; ++ int status = urb->status; ++ ++ /* sanity check */ ++ if (!serial) { ++ D1("serial == NULL"); ++ return; ++ } else if (status) { ++ log_usb_status(status, __func__); ++ return; ++ } ++ ++ D4("\n--- Got serial_read_bulk callback %02x ---", status); ++ D1("Actual length = %d\n", urb->actual_length); ++ DUMP1(urb->transfer_buffer, urb->actual_length); ++ ++ /* Anyone listening? */ ++ if (serial->open_count == 0) ++ return; ++ ++ if (status == 0) { ++ if (serial->parent->port_spec & HSO_INFO_CRC_BUG) { ++ u32 rest; ++ u8 crc_check[4] = { 0xDE, 0xAD, 0xBE, 0xEF }; ++ rest = ++ urb->actual_length % ++ serial->in_endp->wMaxPacketSize; ++ if (((rest == 5) || (rest == 6)) ++ && !memcmp(((u8 *) urb->transfer_buffer) + ++ urb->actual_length - 4, crc_check, 4)) { ++ urb->actual_length -= 4; ++ } ++ } ++ /* Valid data, handle RX data */ ++ put_rxbuf_data(urb, serial); ++ } else if (status == -ENOENT || status == -ECONNRESET) { ++ /* Unlinked - check for throttled port. */ ++ D2("Port %d, successfully unlinked urb", serial->minor); ++ } else { ++ D2("Port %d, status = %d for read urb", serial->minor, status); ++ return; ++ } ++ ++ usb_mark_last_busy(urb->dev); ++ ++ /* We are done with this URB, resubmit it. Prep the USB to wait for ++ * another frame */ ++ usb_fill_bulk_urb(urb, serial->parent->usb, ++ usb_rcvbulkpipe(serial->parent->usb, ++ serial->in_endp-> ++ bEndpointAddress & 0x7F), ++ urb->transfer_buffer, serial->rx_data_length, ++ hso_std_serial_read_bulk_callback, serial); ++ /* Give this to the USB subsystem so it can tell us when more data ++ * arrives. */ ++ result = usb_submit_urb(urb, GFP_ATOMIC); ++ if (result) { ++ dev_err(&urb->dev->dev, "%s failed submit serial rx_urb %d", ++ __func__, result); ++ } ++} ++ ++/* Base driver functions */ ++ ++static void hso_log_port(struct hso_device *hso_dev) ++{ ++ char *port_type; ++ char port_dev[20]; ++ ++ switch (hso_dev->port_spec & HSO_PORT_MASK) { ++ case HSO_PORT_CONTROL: ++ port_type = "Control"; ++ break; ++ case HSO_PORT_APP: ++ port_type = "Application"; ++ break; ++ case HSO_PORT_GPS: ++ port_type = "GPS"; ++ break; ++ case HSO_PORT_GPS_CONTROL: ++ port_type = "GPS control"; ++ break; ++ case HSO_PORT_APP2: ++ port_type = "Application2"; ++ break; ++ case HSO_PORT_PCSC: ++ port_type = "PCSC"; ++ break; ++ case HSO_PORT_DIAG: ++ port_type = "Diagnostic"; ++ break; ++ case HSO_PORT_DIAG2: ++ port_type = "Diagnostic2"; ++ break; ++ case HSO_PORT_MODEM: ++ port_type = "Modem"; ++ break; ++ case HSO_PORT_NETWORK: ++ port_type = "Network"; ++ break; ++ default: ++ port_type = "Unknown"; ++ break; ++ } ++ if ((hso_dev->port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) { ++ sprintf(port_dev, "%s", dev2net(hso_dev)->net->name); ++ } else ++ sprintf(port_dev, "/dev/%s%d", tty_filename, ++ dev2ser(hso_dev)->minor); ++ ++ dev_dbg(&hso_dev->interface->dev, "HSO: Found %s port %s\n", ++ port_type, port_dev); ++} ++ ++static int hso_start_net_device(struct hso_device *hso_dev) ++{ ++ int i, result = 0; ++ struct hso_net *hso_net = dev2net(hso_dev); ++ ++ if (!hso_net) ++ return -ENODEV; ++ ++ /* send URBs for all read buffers */ ++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { ++ ++ /* Prep a receive URB */ ++ usb_fill_bulk_urb(hso_net->mux_bulk_rx_urb_pool[i], ++ hso_dev->usb, ++ usb_rcvbulkpipe(hso_dev->usb, ++ hso_net->in_endp-> ++ bEndpointAddress & 0x7F), ++ hso_net->mux_bulk_rx_buf_pool[i], ++ MUX_BULK_RX_BUF_SIZE, read_bulk_callback, ++ hso_net); ++ ++ /* Put it out there so the device can send us stuff */ ++ result = usb_submit_urb(hso_net->mux_bulk_rx_urb_pool[i], ++ GFP_NOIO); ++ if (result) ++ dev_warn(&hso_dev->usb->dev, ++ "%s failed mux_bulk_rx_urb[%d] %d\n", __func__, ++ i, result); ++ } ++ ++ return result; ++} ++ ++static int hso_stop_net_device(struct hso_device *hso_dev) ++{ ++ int i; ++ struct hso_net *hso_net = dev2net(hso_dev); ++ ++ if (!hso_net) ++ return -ENODEV; ++ ++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { ++ if (hso_net->mux_bulk_rx_urb_pool[i]) ++ usb_kill_urb(hso_net->mux_bulk_rx_urb_pool[i]); ++ ++ } ++ if (hso_net->mux_bulk_tx_urb) ++ usb_kill_urb(hso_net->mux_bulk_tx_urb); ++ ++ return 0; ++} ++ ++static int hso_start_serial_device(struct hso_device *hso_dev, gfp_t flags) ++{ ++ int i, result = 0; ++ struct hso_serial *serial = dev2ser(hso_dev); ++ ++ if (!serial) ++ return -ENODEV; ++ ++ /* If it is not the MUX port fill in and submit a bulk urb (already ++ * allocated in hso_serial_start) */ ++ if (!(serial->parent->port_spec & HSO_INTF_MUX)) { ++ for (i = 0; i < serial->num_rx_urbs; i++) { ++ usb_fill_bulk_urb(serial->rx_urb[i], ++ serial->parent->usb, ++ usb_rcvbulkpipe(serial->parent->usb, ++ serial->in_endp-> ++ bEndpointAddress & ++ 0x7F), ++ serial->rx_data[i], ++ serial->rx_data_length, ++ hso_std_serial_read_bulk_callback, ++ serial); ++ result = usb_submit_urb(serial->rx_urb[i], flags); ++ if (result) { ++ dev_warn(&serial->parent->usb->dev, ++ "Failed to submit urb - res %d\n", ++ result); ++ break; ++ } ++ } ++ } else { ++ mutex_lock(&serial->shared_int->shared_int_lock); ++ if (!serial->shared_int->use_count) { ++ result = ++ hso_mux_submit_intr_urb(serial->shared_int, ++ hso_dev->usb, flags); ++ } ++ serial->shared_int->use_count++; ++ mutex_unlock(&serial->shared_int->shared_int_lock); ++ } ++ ++ return result; ++} ++ ++static int hso_stop_serial_device(struct hso_device *hso_dev) ++{ ++ int i; ++ struct hso_serial *serial = dev2ser(hso_dev); ++ ++ if (!serial) ++ return -ENODEV; ++ ++ for (i = 0; i < serial->num_rx_urbs; i++) { ++ if (serial->rx_urb[i]) ++ usb_kill_urb(serial->rx_urb[i]); ++ } ++ ++ if (serial->tx_urb) ++ usb_kill_urb(serial->tx_urb); ++ ++ if (serial->shared_int) { ++ mutex_lock(&serial->shared_int->shared_int_lock); ++ if (serial->shared_int->use_count && ++ (--serial->shared_int->use_count == 0)) { ++ struct urb *urb; ++ ++ urb = serial->shared_int->shared_intr_urb; ++ if (urb) ++ usb_kill_urb(urb); ++ } ++ mutex_unlock(&serial->shared_int->shared_int_lock); ++ } ++ ++ return 0; ++} ++ ++static void hso_serial_common_free(struct hso_serial *serial) ++{ ++ int i; ++ ++ if (serial->parent->dev) ++ device_remove_file(serial->parent->dev, &dev_attr_hsotype); ++ ++ tty_unregister_device(tty_drv, serial->minor); ++ ++ for (i = 0; i < serial->num_rx_urbs; i++) { ++ /* unlink and free RX URB */ ++ usb_free_urb(serial->rx_urb[i]); ++ /* free the RX buffer */ ++ kfree(serial->rx_data[i]); ++ } ++ ++ /* unlink and free TX URB */ ++ usb_free_urb(serial->tx_urb); ++ kfree(serial->tx_data); ++} ++ ++static int hso_serial_common_create(struct hso_serial *serial, int num_urbs, ++ int rx_size, int tx_size) ++{ ++ struct device *dev; ++ int minor; ++ int i; ++ ++ minor = get_free_serial_index(); ++ if (minor < 0) ++ goto exit; ++ ++ /* register our minor number */ ++ serial->parent->dev = tty_register_device(tty_drv, minor, ++ &serial->parent->interface->dev); ++ dev = serial->parent->dev; ++ dev->driver_data = serial->parent; ++ i = device_create_file(dev, &dev_attr_hsotype); ++ ++ /* fill in specific data for later use */ ++ serial->minor = minor; ++ serial->magic = HSO_SERIAL_MAGIC; ++ spin_lock_init(&serial->serial_lock); ++ serial->num_rx_urbs = num_urbs; ++ ++ /* RX, allocate urb and initialize */ ++ ++ /* prepare our RX buffer */ ++ serial->rx_data_length = rx_size; ++ for (i = 0; i < serial->num_rx_urbs; i++) { ++ serial->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); ++ if (!serial->rx_urb[i]) { ++ dev_err(dev, "Could not allocate urb?\n"); ++ goto exit; ++ } ++ serial->rx_urb[i]->transfer_buffer = NULL; ++ serial->rx_urb[i]->transfer_buffer_length = 0; ++ serial->rx_data[i] = kzalloc(serial->rx_data_length, ++ GFP_KERNEL); ++ if (!serial->rx_data[i]) { ++ dev_err(dev, "%s - Out of memory\n", __func__); ++ goto exit; ++ } ++ } ++ ++ /* TX, allocate urb and initialize */ ++ serial->tx_urb = usb_alloc_urb(0, GFP_KERNEL); ++ if (!serial->tx_urb) { ++ dev_err(dev, "Could not allocate urb?\n"); ++ goto exit; ++ } ++ serial->tx_urb->transfer_buffer = NULL; ++ serial->tx_urb->transfer_buffer_length = 0; ++ /* prepare our TX buffer */ ++ serial->tx_data_count = 0; ++ serial->tx_buffer_count = 0; ++ serial->tx_data_length = tx_size; ++ serial->tx_data = kzalloc(serial->tx_data_length, GFP_KERNEL); ++ if (!serial->tx_data) { ++ dev_err(dev, "%s - Out of memory", __func__); ++ goto exit; ++ } ++ serial->tx_buffer = kzalloc(serial->tx_data_length, GFP_KERNEL); ++ if (!serial->tx_buffer) { ++ dev_err(dev, "%s - Out of memory", __func__); ++ goto exit; ++ } ++ ++ return 0; ++exit: ++ hso_serial_common_free(serial); ++ return -1; ++} ++ ++/* Frees a general hso device */ ++static void hso_free_device(struct hso_device *hso_dev) ++{ ++ kfree(hso_dev); ++} ++ ++/* Creates a general hso device */ ++static struct hso_device *hso_create_device(struct usb_interface *intf, ++ int port_spec) ++{ ++ struct hso_device *hso_dev; ++ ++ hso_dev = kzalloc(sizeof(*hso_dev), GFP_ATOMIC); ++ if (!hso_dev) ++ return NULL; ++ ++ hso_dev->port_spec = port_spec; ++ hso_dev->usb = interface_to_usbdev(intf); ++ hso_dev->interface = intf; ++ kref_init(&hso_dev->ref); ++ mutex_init(&hso_dev->mutex); ++ ++ INIT_WORK(&hso_dev->async_get_intf, async_get_intf); ++ INIT_WORK(&hso_dev->async_put_intf, async_put_intf); ++ ++ return hso_dev; ++} ++ ++/* Removes a network device in the network device table */ ++static int remove_net_device(struct hso_device *hso_dev) ++{ ++ int i; ++ ++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { ++ if (network_table[i] == hso_dev) { ++ network_table[i] = NULL; ++ break; ++ } ++ } ++ if (i == HSO_MAX_NET_DEVICES) ++ return -1; ++ return 0; ++} ++ ++/* Frees our network device */ ++static void hso_free_net_device(struct hso_device *hso_dev) ++{ ++ int i; ++ struct hso_net *hso_net = dev2net(hso_dev); ++ ++ if (!hso_net) ++ return; ++ ++ /* start freeing */ ++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { ++ usb_free_urb(hso_net->mux_bulk_rx_urb_pool[i]); ++ kfree(hso_net->mux_bulk_rx_buf_pool[i]); ++ } ++ usb_free_urb(hso_net->mux_bulk_tx_urb); ++ kfree(hso_net->mux_bulk_tx_buf); ++ ++ remove_net_device(hso_net->parent); ++ ++ if (hso_net->net) { ++ unregister_netdev(hso_net->net); ++ free_netdev(hso_net->net); ++ } ++ ++ hso_free_device(hso_dev); ++} ++ ++/* initialize the network interface */ ++static void hso_net_init(struct net_device *net) ++{ ++ struct hso_net *hso_net = netdev_priv(net); ++ ++ D1("sizeof hso_net is %d", (int)sizeof(*hso_net)); ++ ++ /* fill in the other fields */ ++ net->open = hso_net_open; ++ net->stop = hso_net_close; ++ net->hard_start_xmit = hso_net_start_xmit; ++ net->tx_timeout = hso_net_tx_timeout; ++ net->watchdog_timeo = HSO_NET_TX_TIMEOUT; ++ net->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST; ++ net->type = ARPHRD_NONE; ++ net->mtu = DEFAULT_MTU - 14; ++ net->tx_queue_len = 10; ++ SET_ETHTOOL_OPS(net, &ops); ++ ++ /* and initialize the semaphore */ ++ spin_lock_init(&hso_net->net_lock); ++} ++ ++/* Adds a network device in the network device table */ ++static int add_net_device(struct hso_device *hso_dev) ++{ ++ int i; ++ ++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { ++ if (network_table[i] == NULL) { ++ network_table[i] = hso_dev; ++ break; ++ } ++ } ++ if (i == HSO_MAX_NET_DEVICES) ++ return -1; ++ return 0; ++} ++ ++static int hso_radio_toggle(void *data, enum rfkill_state state) ++{ ++ struct hso_device *hso_dev = data; ++ int enabled = (state == RFKILL_STATE_ON); ++ int rv; ++ ++ mutex_lock(&hso_dev->mutex); ++ if (hso_dev->usb_gone) ++ rv = 0; ++ else ++ rv = usb_control_msg(hso_dev->usb, usb_rcvctrlpipe(hso_dev->usb, 0), ++ enabled ? 0x82 : 0x81, 0x40, 0, 0, NULL, 0, ++ USB_CTRL_SET_TIMEOUT); ++ mutex_unlock(&hso_dev->mutex); ++ return rv; ++} ++ ++/* Creates and sets up everything for rfkill */ ++static void hso_create_rfkill(struct hso_device *hso_dev, ++ struct usb_interface *interface) ++{ ++ struct hso_net *hso_net = dev2net(hso_dev); ++ struct device *dev = hso_dev->dev; ++ char *rfkn; ++ ++ hso_net->rfkill = rfkill_allocate(&interface_to_usbdev(interface)->dev, ++ RFKILL_TYPE_WLAN); ++ if (!hso_net->rfkill) { ++ dev_err(dev, "%s - Out of memory", __func__); ++ return; ++ } ++ rfkn = kzalloc(20, GFP_KERNEL); ++ if (!rfkn) { ++ rfkill_free(hso_net->rfkill); ++ dev_err(dev, "%s - Out of memory", __func__); ++ return; ++ } ++ snprintf(rfkn, 20, "hso-%d", ++ interface->altsetting->desc.bInterfaceNumber); ++ hso_net->rfkill->name = rfkn; ++ hso_net->rfkill->state = RFKILL_STATE_ON; ++ hso_net->rfkill->data = hso_dev; ++ hso_net->rfkill->toggle_radio = hso_radio_toggle; ++ if (rfkill_register(hso_net->rfkill) < 0) { ++ kfree(rfkn); ++ hso_net->rfkill->name = NULL; ++ rfkill_free(hso_net->rfkill); ++ dev_err(dev, "%s - Failed to register rfkill", __func__); ++ return; ++ } ++} ++ ++/* Creates our network device */ ++static struct hso_device *hso_create_net_device(struct usb_interface *interface) ++{ ++ int result, i; ++ struct net_device *net; ++ struct hso_net *hso_net; ++ struct hso_device *hso_dev; ++ ++ hso_dev = hso_create_device(interface, HSO_INTF_MUX | HSO_PORT_NETWORK); ++ if (!hso_dev) ++ return NULL; ++ ++ /* allocate our network device, then we can put in our private data */ ++ /* call hso_net_init to do the basic initialization */ ++ net = alloc_netdev(sizeof(struct hso_net), "hso%d", hso_net_init); ++ if (!net) { ++ dev_err(&interface->dev, "Unable to create ethernet device\n"); ++ goto exit; ++ } ++ ++ hso_net = netdev_priv(net); ++ ++ hso_dev->port_data.dev_net = hso_net; ++ hso_net->net = net; ++ hso_net->parent = hso_dev; ++ ++ hso_net->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, ++ USB_DIR_IN); ++ if (!hso_net->in_endp) { ++ dev_err(&interface->dev, "Can't find BULK IN endpoint\n"); ++ goto exit; ++ } ++ hso_net->out_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, ++ USB_DIR_OUT); ++ if (!hso_net->out_endp) { ++ dev_err(&interface->dev, "Can't find BULK OUT endpoint\n"); ++ goto exit; ++ } ++ SET_NETDEV_DEV(net, &interface->dev); ++ ++ /* registering our net device */ ++ result = register_netdev(net); ++ if (result) { ++ dev_err(&interface->dev, "Failed to register device\n"); ++ goto exit; ++ } ++ ++ /* start allocating */ ++ for (i = 0; i < MUX_BULK_RX_BUF_COUNT; i++) { ++ hso_net->mux_bulk_rx_urb_pool[i] = usb_alloc_urb(0, GFP_KERNEL); ++ if (!hso_net->mux_bulk_rx_urb_pool[i]) { ++ dev_err(&interface->dev, "Could not allocate rx urb\n"); ++ goto exit; ++ } ++ hso_net->mux_bulk_rx_buf_pool[i] = kzalloc(MUX_BULK_RX_BUF_SIZE, ++ GFP_KERNEL); ++ if (!hso_net->mux_bulk_rx_buf_pool[i]) { ++ dev_err(&interface->dev, "Could not allocate rx buf\n"); ++ goto exit; ++ } ++ } ++ hso_net->mux_bulk_tx_urb = usb_alloc_urb(0, GFP_KERNEL); ++ if (!hso_net->mux_bulk_tx_urb) { ++ dev_err(&interface->dev, "Could not allocate tx urb\n"); ++ goto exit; ++ } ++ hso_net->mux_bulk_tx_buf = kzalloc(MUX_BULK_TX_BUF_SIZE, GFP_KERNEL); ++ if (!hso_net->mux_bulk_tx_buf) { ++ dev_err(&interface->dev, "Could not allocate tx buf\n"); ++ goto exit; ++ } ++ ++ add_net_device(hso_dev); ++ ++ hso_log_port(hso_dev); ++ ++ hso_create_rfkill(hso_dev, interface); ++ ++ return hso_dev; ++exit: ++ hso_free_net_device(hso_dev); ++ return NULL; ++} ++ ++/* Frees an AT channel ( goes for both mux and non-mux ) */ ++static void hso_free_serial_device(struct hso_device *hso_dev) ++{ ++ struct hso_serial *serial = dev2ser(hso_dev); ++ ++ if (!serial) ++ return; ++ set_serial_by_index(serial->minor, NULL); ++ ++ hso_serial_common_free(serial); ++ ++ if (serial->shared_int) { ++ mutex_lock(&serial->shared_int->shared_int_lock); ++ if (--serial->shared_int->ref_count == 0) ++ hso_free_shared_int(serial->shared_int); ++ else ++ mutex_unlock(&serial->shared_int->shared_int_lock); ++ } ++ kfree(serial); ++ hso_free_device(hso_dev); ++} ++ ++/* Creates a bulk AT channel */ ++static struct hso_device *hso_create_bulk_serial_device( ++ struct usb_interface *interface, int port) ++{ ++ struct hso_device *hso_dev; ++ struct hso_serial *serial; ++ int num_urbs; ++ ++ hso_dev = hso_create_device(interface, port); ++ if (!hso_dev) ++ return NULL; ++ ++ serial = kzalloc(sizeof(*serial), GFP_KERNEL); ++ if (!serial) ++ goto exit; ++ ++ serial->parent = hso_dev; ++ hso_dev->port_data.dev_serial = serial; ++ ++ if (port & HSO_PORT_MODEM) ++ num_urbs = 2; ++ else ++ num_urbs = 1; ++ ++ if (hso_serial_common_create(serial, num_urbs, BULK_URB_RX_SIZE, ++ BULK_URB_TX_SIZE)) ++ goto exit; ++ ++ serial->in_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, ++ USB_DIR_IN); ++ if (!serial->in_endp) { ++ dev_err(&interface->dev, "Failed to find BULK IN ep\n"); ++ goto exit; ++ } ++ ++ if (! ++ (serial->out_endp = ++ hso_get_ep(interface, USB_ENDPOINT_XFER_BULK, USB_DIR_OUT))) { ++ dev_err(&interface->dev, "Failed to find BULK IN ep\n"); ++ goto exit; ++ } ++ ++ serial->write_data = hso_std_serial_write_data; ++ ++ /* and record this serial */ ++ set_serial_by_index(serial->minor, serial); ++ ++ /* setup the proc dirs and files if needed */ ++ hso_log_port(hso_dev); ++ ++ /* done, return it */ ++ return hso_dev; ++exit: ++ if (hso_dev && serial) ++ hso_serial_common_free(serial); ++ kfree(serial); ++ hso_free_device(hso_dev); ++ return NULL; ++} ++ ++/* Creates a multiplexed AT channel */ ++static ++struct hso_device *hso_create_mux_serial_device(struct usb_interface *interface, ++ int port, ++ struct hso_shared_int *mux) ++{ ++ struct hso_device *hso_dev; ++ struct hso_serial *serial; ++ int port_spec; ++ ++ port_spec = HSO_INTF_MUX; ++ port_spec &= ~HSO_PORT_MASK; ++ ++ port_spec |= hso_mux_to_port(port); ++ if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NO_PORT) ++ return NULL; ++ ++ hso_dev = hso_create_device(interface, port_spec); ++ if (!hso_dev) ++ return NULL; ++ ++ serial = kzalloc(sizeof(*serial), GFP_KERNEL); ++ if (!serial) ++ goto exit; ++ ++ hso_dev->port_data.dev_serial = serial; ++ serial->parent = hso_dev; ++ ++ if (hso_serial_common_create ++ (serial, 1, CTRL_URB_RX_SIZE, CTRL_URB_TX_SIZE)) ++ goto exit; ++ ++ serial->tx_data_length--; ++ serial->write_data = hso_mux_serial_write_data; ++ ++ serial->shared_int = mux; ++ mutex_lock(&serial->shared_int->shared_int_lock); ++ serial->shared_int->ref_count++; ++ mutex_unlock(&serial->shared_int->shared_int_lock); ++ ++ /* and record this serial */ ++ set_serial_by_index(serial->minor, serial); ++ ++ /* setup the proc dirs and files if needed */ ++ hso_log_port(hso_dev); ++ ++ /* done, return it */ ++ return hso_dev; ++ ++exit: ++ if (serial) { ++ tty_unregister_device(tty_drv, serial->minor); ++ kfree(serial); ++ } ++ if (hso_dev) ++ hso_free_device(hso_dev); ++ return NULL; ++ ++} ++ ++static void hso_free_shared_int(struct hso_shared_int *mux) ++{ ++ usb_free_urb(mux->shared_intr_urb); ++ kfree(mux->shared_intr_buf); ++ mutex_unlock(&mux->shared_int_lock); ++ kfree(mux); ++} ++ ++static ++struct hso_shared_int *hso_create_shared_int(struct usb_interface *interface) ++{ ++ struct hso_shared_int *mux = kzalloc(sizeof(*mux), GFP_KERNEL); ++ ++ if (!mux) ++ return NULL; ++ ++ mux->intr_endp = hso_get_ep(interface, USB_ENDPOINT_XFER_INT, ++ USB_DIR_IN); ++ if (!mux->intr_endp) { ++ dev_err(&interface->dev, "Can't find INT IN endpoint\n"); ++ goto exit; ++ } ++ ++ mux->shared_intr_urb = usb_alloc_urb(0, GFP_KERNEL); ++ if (!mux->shared_intr_urb) { ++ dev_err(&interface->dev, "Could not allocate intr urb?"); ++ goto exit; ++ } ++ mux->shared_intr_buf = kzalloc(mux->intr_endp->wMaxPacketSize, ++ GFP_KERNEL); ++ if (!mux->shared_intr_buf) { ++ dev_err(&interface->dev, "Could not allocate intr buf?"); ++ goto exit; ++ } ++ ++ mutex_init(&mux->shared_int_lock); ++ ++ return mux; ++ ++exit: ++ kfree(mux->shared_intr_buf); ++ usb_free_urb(mux->shared_intr_urb); ++ kfree(mux); ++ return NULL; ++} ++ ++/* Gets the port spec for a certain interface */ ++static int hso_get_config_data(struct usb_interface *interface) ++{ ++ struct usb_device *usbdev = interface_to_usbdev(interface); ++ u8 config_data[17]; ++ u32 if_num = interface->altsetting->desc.bInterfaceNumber; ++ s32 result; ++ ++ if (usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), ++ 0x86, 0xC0, 0, 0, config_data, 17, ++ USB_CTRL_SET_TIMEOUT) != 0x11) { ++ return -EIO; ++ } ++ ++ switch (config_data[if_num]) { ++ case 0x0: ++ result = 0; ++ break; ++ case 0x1: ++ result = HSO_PORT_DIAG; ++ break; ++ case 0x2: ++ result = HSO_PORT_GPS; ++ break; ++ case 0x3: ++ result = HSO_PORT_GPS_CONTROL; ++ break; ++ case 0x4: ++ result = HSO_PORT_APP; ++ break; ++ case 0x5: ++ result = HSO_PORT_APP2; ++ break; ++ case 0x6: ++ result = HSO_PORT_CONTROL; ++ break; ++ case 0x7: ++ result = HSO_PORT_NETWORK; ++ break; ++ case 0x8: ++ result = HSO_PORT_MODEM; ++ break; ++ case 0x9: ++ result = HSO_PORT_MSD; ++ break; ++ case 0xa: ++ result = HSO_PORT_PCSC; ++ break; ++ case 0xb: ++ result = HSO_PORT_VOICE; ++ break; ++ default: ++ result = 0; ++ } ++ ++ if (result) ++ result |= HSO_INTF_BULK; ++ ++ if (config_data[16] & 0x1) ++ result |= HSO_INFO_CRC_BUG; ++ ++ return result; ++} ++ ++/* called once for each interface upon device insertion */ ++static int hso_probe(struct usb_interface *interface, ++ const struct usb_device_id *id) ++{ ++ int mux, i, if_num, port_spec; ++ unsigned char port_mask; ++ struct hso_device *hso_dev = NULL; ++ struct hso_shared_int *shared_int; ++ struct hso_device *tmp_dev = NULL; ++ ++ if_num = interface->altsetting->desc.bInterfaceNumber; ++ ++ /* Get the interface/port specification from either driver_info or from ++ * the device itself */ ++ if (id->driver_info) ++ port_spec = ((u32 *)(id->driver_info))[if_num]; ++ else ++ port_spec = hso_get_config_data(interface); ++ ++ if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) { ++ dev_err(&interface->dev, "Not our interface\n"); ++ return -ENODEV; ++ } ++ /* Check if we need to switch to alt interfaces prior to port ++ * configuration */ ++ if (interface->num_altsetting > 1) ++ usb_set_interface(interface_to_usbdev(interface), if_num, 1); ++ interface->needs_remote_wakeup = 1; ++ ++ /* Allocate new hso device(s) */ ++ switch (port_spec & HSO_INTF_MASK) { ++ case HSO_INTF_MUX: ++ if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) { ++ /* Create the network device */ ++ if (!disable_net) { ++ hso_dev = hso_create_net_device(interface); ++ if (!hso_dev) ++ goto exit; ++ tmp_dev = hso_dev; ++ } ++ } ++ ++ if (hso_get_mux_ports(interface, &port_mask)) ++ /* TODO: de-allocate everything */ ++ goto exit; ++ ++ shared_int = hso_create_shared_int(interface); ++ if (!shared_int) ++ goto exit; ++ ++ for (i = 1, mux = 0; i < 0x100; i = i << 1, mux++) { ++ if (port_mask & i) { ++ hso_dev = hso_create_mux_serial_device( ++ interface, i, shared_int); ++ if (!hso_dev) ++ goto exit; ++ } ++ } ++ ++ if (tmp_dev) ++ hso_dev = tmp_dev; ++ break; ++ ++ case HSO_INTF_BULK: ++ /* It's a regular bulk interface */ ++ if (((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) ++ && !disable_net) ++ hso_dev = hso_create_net_device(interface); ++ else ++ hso_dev = ++ hso_create_bulk_serial_device(interface, port_spec); ++ if (!hso_dev) ++ goto exit; ++ break; ++ default: ++ goto exit; ++ } ++ ++ usb_driver_claim_interface(&hso_driver, interface, hso_dev); ++ ++ /* save our data pointer in this device */ ++ usb_set_intfdata(interface, hso_dev); ++ ++ /* done */ ++ return 0; ++exit: ++ hso_free_interface(interface); ++ return -ENODEV; ++} ++ ++/* device removed, cleaning up */ ++static void hso_disconnect(struct usb_interface *interface) ++{ ++ hso_free_interface(interface); ++ ++ /* remove reference of our private data */ ++ usb_set_intfdata(interface, NULL); ++ ++ usb_driver_release_interface(&hso_driver, interface); ++} ++ ++static void async_get_intf(struct work_struct *data) ++{ ++ struct hso_device *hso_dev = ++ container_of(data, struct hso_device, async_get_intf); ++ usb_autopm_get_interface(hso_dev->interface); ++} ++ ++static void async_put_intf(struct work_struct *data) ++{ ++ struct hso_device *hso_dev = ++ container_of(data, struct hso_device, async_put_intf); ++ usb_autopm_put_interface(hso_dev->interface); ++} ++ ++static int hso_get_activity(struct hso_device *hso_dev) ++{ ++ if (hso_dev->usb->state == USB_STATE_SUSPENDED) { ++ if (!hso_dev->is_active) { ++ hso_dev->is_active = 1; ++ schedule_work(&hso_dev->async_get_intf); ++ } ++ } ++ ++ if (hso_dev->usb->state != USB_STATE_CONFIGURED) ++ return -EAGAIN; ++ ++ usb_mark_last_busy(hso_dev->usb); ++ ++ return 0; ++} ++ ++static int hso_put_activity(struct hso_device *hso_dev) ++{ ++ if (hso_dev->usb->state != USB_STATE_SUSPENDED) { ++ if (hso_dev->is_active) { ++ hso_dev->is_active = 0; ++ schedule_work(&hso_dev->async_put_intf); ++ return -EAGAIN; ++ } ++ } ++ hso_dev->is_active = 0; ++ return 0; ++} ++ ++/* called by kernel when we need to suspend device */ ++static int hso_suspend(struct usb_interface *iface, pm_message_t message) ++{ ++ int i, result; ++ ++ /* Stop all serial ports */ ++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { ++ if (serial_table[i] && (serial_table[i]->interface == iface)) { ++ result = hso_stop_serial_device(serial_table[i]); ++ if (result) ++ goto out; ++ } ++ } ++ ++ /* Stop all network ports */ ++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { ++ if (network_table[i] && ++ (network_table[i]->interface == iface)) { ++ result = hso_stop_net_device(network_table[i]); ++ if (result) ++ goto out; ++ } ++ } ++ ++out: ++ return 0; ++} ++ ++/* called by kernel when we need to resume device */ ++static int hso_resume(struct usb_interface *iface) ++{ ++ int i, result = 0; ++ struct hso_net *hso_net; ++ ++ /* Start all serial ports */ ++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { ++ if (serial_table[i] && (serial_table[i]->interface == iface)) { ++ if (dev2ser(serial_table[i])->open_count) { ++ result = ++ hso_start_serial_device(serial_table[i], GFP_NOIO); ++ hso_kick_transmit(dev2ser(serial_table[i])); ++ if (result) ++ goto out; ++ } ++ } ++ } ++ ++ /* Start all network ports */ ++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { ++ if (network_table[i] && ++ (network_table[i]->interface == iface)) { ++ hso_net = dev2net(network_table[i]); ++ /* First transmit any lingering data, then restart the ++ * device. */ ++ if (hso_net->skb_tx_buf) { ++ dev_dbg(&iface->dev, ++ "Transmitting lingering data\n"); ++ hso_net_start_xmit(hso_net->skb_tx_buf, ++ hso_net->net); ++ } ++ result = hso_start_net_device(network_table[i]); ++ if (result) ++ goto out; ++ } ++ } ++ ++out: ++ return result; ++} ++ ++static void hso_serial_ref_free(struct kref *ref) ++{ ++ struct hso_device *hso_dev = container_of(ref, struct hso_device, ref); ++ ++ hso_free_serial_device(hso_dev); ++} ++ ++static void hso_free_interface(struct usb_interface *interface) ++{ ++ struct hso_serial *hso_dev; ++ int i; ++ ++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { ++ if (serial_table[i] ++ && (serial_table[i]->interface == interface)) { ++ hso_dev = dev2ser(serial_table[i]); ++ if (hso_dev->tty) ++ tty_hangup(hso_dev->tty); ++ mutex_lock(&hso_dev->parent->mutex); ++ hso_dev->parent->usb_gone = 1; ++ mutex_unlock(&hso_dev->parent->mutex); ++ kref_put(&serial_table[i]->ref, hso_serial_ref_free); ++ } ++ } ++ ++ for (i = 0; i < HSO_MAX_NET_DEVICES; i++) { ++ if (network_table[i] ++ && (network_table[i]->interface == interface)) { ++ struct rfkill *rfk = dev2net(network_table[i])->rfkill; ++ /* hso_stop_net_device doesn't stop the net queue since ++ * traffic needs to start it again when suspended */ ++ netif_stop_queue(dev2net(network_table[i])->net); ++ hso_stop_net_device(network_table[i]); ++ cancel_work_sync(&network_table[i]->async_put_intf); ++ cancel_work_sync(&network_table[i]->async_get_intf); ++ if(rfk) ++ rfkill_unregister(rfk); ++ hso_free_net_device(network_table[i]); ++ } ++ } ++} ++ ++/* Helper functions */ ++ ++/* Get the endpoint ! */ ++static struct usb_endpoint_descriptor *hso_get_ep(struct usb_interface *intf, ++ int type, int dir) ++{ ++ int i; ++ struct usb_host_interface *iface = intf->cur_altsetting; ++ struct usb_endpoint_descriptor *endp; ++ ++ for (i = 0; i < iface->desc.bNumEndpoints; i++) { ++ endp = &iface->endpoint[i].desc; ++ if (((endp->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == dir) && ++ ((endp->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == type)) ++ return endp; ++ } ++ ++ return NULL; ++} ++ ++/* Get the byte that describes which ports are enabled */ ++static int hso_get_mux_ports(struct usb_interface *intf, unsigned char *ports) ++{ ++ int i; ++ struct usb_host_interface *iface = intf->cur_altsetting; ++ ++ if (iface->extralen == 3) { ++ *ports = iface->extra[2]; ++ return 0; ++ } ++ ++ for (i = 0; i < iface->desc.bNumEndpoints; i++) { ++ if (iface->endpoint[i].extralen == 3) { ++ *ports = iface->endpoint[i].extra[2]; ++ return 0; ++ } ++ } ++ ++ return -1; ++} ++ ++/* interrupt urb needs to be submitted, used for serial read of muxed port */ ++static int hso_mux_submit_intr_urb(struct hso_shared_int *shared_int, ++ struct usb_device *usb, gfp_t gfp) ++{ ++ int result; ++ ++ usb_fill_int_urb(shared_int->shared_intr_urb, usb, ++ usb_rcvintpipe(usb, ++ shared_int->intr_endp->bEndpointAddress & 0x7F), ++ shared_int->shared_intr_buf, ++ shared_int->intr_endp->wMaxPacketSize, ++ intr_callback, shared_int, ++ shared_int->intr_endp->bInterval); ++ ++ result = usb_submit_urb(shared_int->shared_intr_urb, gfp); ++ if (result) ++ dev_warn(&usb->dev, "%s failed mux_intr_urb %d", __func__, ++ result); ++ ++ return result; ++} ++ ++/* operations setup of the serial interface */ ++static struct tty_operations hso_serial_ops = { ++ .open = hso_serial_open, ++ .close = hso_serial_close, ++ .write = hso_serial_write, ++ .write_room = hso_serial_write_room, ++ .set_termios = hso_serial_set_termios, ++ .chars_in_buffer = hso_serial_chars_in_buffer, ++ .tiocmget = hso_serial_tiocmget, ++ .tiocmset = hso_serial_tiocmset, ++}; ++ ++static struct usb_driver hso_driver = { ++ .name = driver_name, ++ .probe = hso_probe, ++ .disconnect = hso_disconnect, ++ .id_table = hso_ids, ++ .suspend = hso_suspend, ++ .resume = hso_resume, ++ .supports_autosuspend = 1, ++}; ++ ++static int __init hso_init(void) ++{ ++ int i; ++ int result; ++ ++ /* put it in the log */ ++ printk(KERN_INFO "hso: %s\n", version); ++ ++ /* Initialise the serial table semaphore and table */ ++ spin_lock_init(&serial_table_lock); ++ for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) ++ serial_table[i] = NULL; ++ ++ /* allocate our driver using the proper amount of supported minors */ ++ tty_drv = alloc_tty_driver(HSO_SERIAL_TTY_MINORS); ++ if (!tty_drv) ++ return -ENOMEM; ++ ++ /* fill in all needed values */ ++ tty_drv->magic = TTY_DRIVER_MAGIC; ++ tty_drv->owner = THIS_MODULE; ++ tty_drv->driver_name = driver_name; ++ tty_drv->name = tty_filename; ++ ++ /* if major number is provided as parameter, use that one */ ++ if (tty_major) ++ tty_drv->major = tty_major; ++ ++ tty_drv->minor_start = 0; ++ tty_drv->num = HSO_SERIAL_TTY_MINORS; ++ tty_drv->type = TTY_DRIVER_TYPE_SERIAL; ++ tty_drv->subtype = SERIAL_TYPE_NORMAL; ++ tty_drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; ++ tty_drv->init_termios = tty_std_termios; ++ tty_drv->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; ++ tty_drv->termios = hso_serial_termios; ++ tty_drv->termios_locked = hso_serial_termios_locked; ++ tty_set_operations(tty_drv, &hso_serial_ops); ++ ++ /* register the tty driver */ ++ result = tty_register_driver(tty_drv); ++ if (result) { ++ printk(KERN_ERR "%s - tty_register_driver failed(%d)\n", ++ __func__, result); ++ return result; ++ } ++ ++ /* register this module as an usb driver */ ++ result = usb_register(&hso_driver); ++ if (result) { ++ printk(KERN_ERR "Could not register hso driver? error: %d\n", ++ result); ++ /* cleanup serial interface */ ++ tty_unregister_driver(tty_drv); ++ return result; ++ } ++ ++ /* done */ ++ return 0; ++} ++ ++static void __exit hso_exit(void) ++{ ++ printk(KERN_INFO "hso: unloaded\n"); ++ ++ tty_unregister_driver(tty_drv); ++ /* deregister the usb driver */ ++ usb_deregister(&hso_driver); ++} ++ ++/* Module definitions */ ++module_init(hso_init); ++module_exit(hso_exit); ++ ++MODULE_AUTHOR(MOD_AUTHOR); ++MODULE_DESCRIPTION(MOD_DESCRIPTION); ++MODULE_LICENSE(MOD_LICENSE); ++MODULE_INFO(Version, DRIVER_VERSION); ++ ++/* change the debug level (eg: insmod hso.ko debug=0x04) */ ++MODULE_PARM_DESC(debug, "Level of debug [0x01 | 0x02 | 0x04 | 0x08 | 0x10]"); ++module_param(debug, int, S_IRUGO | S_IWUSR); ++ ++/* set the major tty number (eg: insmod hso.ko tty_major=245) */ ++MODULE_PARM_DESC(tty_major, "Set the major tty number"); ++module_param(tty_major, int, S_IRUGO | S_IWUSR); ++ ++/* disable network interface (eg: insmod hso.ko disable_net=1) */ ++MODULE_PARM_DESC(disable_net, "Disable the network interface"); ++module_param(disable_net, int, S_IRUGO | S_IWUSR); |