diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/class/Kconfig | 23 | ||||
| -rw-r--r-- | drivers/usb/class/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/class/bluetty.c | 1279 |
4 files changed, 0 insertions, 1304 deletions
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index aa554f9805ee..a50c2bc506f2 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -18,7 +18,6 @@ obj-$(CONFIG_ETRAX_USB_HOST) += host/ obj-$(CONFIG_USB_ACM) += class/ obj-$(CONFIG_USB_AUDIO) += class/ -obj-$(CONFIG_USB_BLUETOOTH_TTY) += class/ obj-$(CONFIG_USB_MIDI) += class/ obj-$(CONFIG_USB_PRINTER) += class/ diff --git a/drivers/usb/class/Kconfig b/drivers/usb/class/Kconfig index 333e39bb105f..ef105a92a7bd 100644 --- a/drivers/usb/class/Kconfig +++ b/drivers/usb/class/Kconfig @@ -28,29 +28,6 @@ config USB_AUDIO To compile this driver as a module, choose M here: the module will be called audio. -comment "USB Bluetooth TTY can only be used with disabled Bluetooth subsystem" - depends on USB && BT - -config USB_BLUETOOTH_TTY - tristate "USB Bluetooth TTY support" - depends on USB && BT=n - ---help--- - This driver implements a nonstandard tty interface to a Bluetooth - device that can be used only by specialized Bluetooth HCI software. - - Say Y here if you want to use OpenBT Bluetooth stack (available - at <http://developer.axis.com/software>), or other TTY based - Bluetooth stacks, and want to connect a USB Bluetooth device - to your computer's USB port. - - Do *not* enable this driver if you want to use generic Linux - Bluetooth support. - - If in doubt, say N here. - - To compile this driver as a module, choose M here: the - module will be called bluetty. - config USB_MIDI tristate "USB MIDI support" depends on USB && SOUND && OBSOLETE_OSS_USB_DRIVER diff --git a/drivers/usb/class/Makefile b/drivers/usb/class/Makefile index 971e5497a3fd..229471247751 100644 --- a/drivers/usb/class/Makefile +++ b/drivers/usb/class/Makefile @@ -5,6 +5,5 @@ obj-$(CONFIG_USB_ACM) += cdc-acm.o obj-$(CONFIG_USB_AUDIO) += audio.o -obj-$(CONFIG_USB_BLUETOOTH_TTY) += bluetty.o obj-$(CONFIG_USB_MIDI) += usb-midi.o obj-$(CONFIG_USB_PRINTER) += usblp.o diff --git a/drivers/usb/class/bluetty.c b/drivers/usb/class/bluetty.c deleted file mode 100644 index 524023327c49..000000000000 --- a/drivers/usb/class/bluetty.c +++ /dev/null @@ -1,1279 +0,0 @@ -/* - * bluetty.c Version 0.13 - * - * Copyright (C) 2000, 2001 Greg Kroah-Hartman <greg@kroah.com> - * Copyright (C) 2000 Mark Douglas Corner <mcorner@umich.edu> - * - * USB Bluetooth TTY driver, based on the Bluetooth Spec version 1.0B - * - * (2001/11/30) Version 0.13 gkh - * - added locking patch from Masoodur Rahman <rmasoodu@in.ibm.com> - * - removed active variable, as open_count will do. - * - * (2001/07/09) Version 0.12 gkh - * - removed in_interrupt() call, as it doesn't make sense to do - * that anymore. - * - * (2001/06/05) Version 0.11 gkh - * - Fixed problem with read urb status saying that we have shutdown, - * and that we shouldn't resubmit the urb. Patch from unknown. - * - * (2001/05/28) Version 0.10 gkh - * - Fixed problem with using data from userspace in the bluetooth_write - * function as found by the CHECKER project. - * - Added a buffer to the write_urb_pool which reduces the number of - * buffers being created and destroyed for ever write. Also cleans - * up the logic a bit. - * - Added a buffer to the control_urb_pool which fixes a memory leak - * when the device is removed from the system. - * - * (2001/05/28) Version 0.9 gkh - * Fixed problem with bluetooth==NULL for bluetooth_read_bulk_callback - * which was found by both the CHECKER project and Mikko Rahkonen. - * - * (08/04/2001) gb - * Identify version on module load. - * - * (2001/03/10) Version 0.8 gkh - * Fixed problem with not unlinking interrupt urb on device close - * and resubmitting the read urb on error with bluetooth struct. - * Thanks to Narayan Mohanram <narayan@RovingNetworks.com> for the - * fixes. - * - * (11/29/2000) Version 0.7 gkh - * Fixed problem with overrunning the tty flip buffer. - * Removed unneeded NULL pointer initialization. - * - * (10/05/2000) Version 0.6 gkh - * Fixed bug with urb->dev not being set properly, now that the usb - * core needs it. - * Got a real major id number and name. - * - * (08/06/2000) Version 0.5 gkh - * Fixed problem of not resubmitting the bulk read urb if there is - * an error in the callback. Ericsson devices seem to need this. - * - * (07/11/2000) Version 0.4 gkh - * Fixed bug in disconnect for when we call tty_hangup - * Fixed bug in bluetooth_ctrl_msg where the bluetooth struct was not - * getting attached to the control urb properly. - * Fixed bug in bluetooth_write where we pay attention to the result - * of bluetooth_ctrl_msg. - * - * (08/03/2000) Version 0.3 gkh mdc - * Merged in Mark's changes to make the driver play nice with the Axis - * stack. - * Made the write bulk use an urb pool to enable larger transfers with - * fewer calls to the driver. - * Fixed off by one bug in acl pkt receive - * Made packet counters specific to each bluetooth device - * Added checks for zero length callbacks - * Added buffers for int and bulk packets. Had to do this otherwise - * packet types could intermingle. - * Made a control urb pool for the control messages. - * - * (07/11/2000) Version 0.2 gkh - * Fixed a small bug found by Nils Faerber in the usb_bluetooth_probe - * function. - * - * (07/09/2000) Version 0.1 gkh - * Initial release. Has support for sending ACL data (which is really just - * a HCI frame.) Raw HCI commands and HCI events are not supported. - * A ioctl will probably be needed for the HCI commands and events in the - * future. All isoch endpoints are ignored at this time also. - * This driver should work for all currently shipping USB Bluetooth - * devices at this time :) - * - */ - -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/tty.h> -#include <linux/tty_driver.h> -#include <linux/tty_flip.h> -#include <linux/module.h> -#include <asm/uaccess.h> - -#define DEBUG -#include <linux/usb.h> - -/* - * Version Information - */ -#define DRIVER_VERSION "v0.13" -#define DRIVER_AUTHOR "Greg Kroah-Hartman, Mark Douglas Corner" -#define DRIVER_DESC "USB Bluetooth tty driver" - -/* define this if you have hardware that is not good */ -/*#define BTBUGGYHARDWARE */ - -/* Class, SubClass, and Protocol codes that describe a Bluetooth device */ -#define WIRELESS_CLASS_CODE 0xe0 -#define RF_SUBCLASS_CODE 0x01 -#define BLUETOOTH_PROGRAMMING_PROTOCOL_CODE 0x01 - - -#define BLUETOOTH_TTY_MAJOR 216 /* real device node major id */ -#define BLUETOOTH_TTY_MINORS 256 /* whole lotta bluetooth devices */ - -#define USB_BLUETOOTH_MAGIC 0x6d02 /* magic number for bluetooth struct */ - -#define BLUETOOTH_CONTROL_REQUEST_TYPE 0x20 - -/* Bluetooth packet types */ -#define CMD_PKT 0x01 -#define ACL_PKT 0x02 -#define SCO_PKT 0x03 -#define EVENT_PKT 0x04 -#define ERROR_PKT 0x05 -#define NEG_PKT 0x06 - -/* Message sizes */ -#define MAX_EVENT_SIZE 0xFF -#define EVENT_HDR_SIZE 3 /* 2 for the header + 1 for the type indicator */ -#define EVENT_BUFFER_SIZE (MAX_EVENT_SIZE + EVENT_HDR_SIZE) - -#define MAX_ACL_SIZE 0xFFFF -#define ACL_HDR_SIZE 5 /* 4 for the header + 1 for the type indicator */ -#define ACL_BUFFER_SIZE (MAX_ACL_SIZE + ACL_HDR_SIZE) - -/* parity check flag */ -#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK)) - -#define CHAR2INT16(c1,c0) (((u32)((c1) & 0xff) << 8) + (u32)((c0) & 0xff)) - -#define NUM_BULK_URBS 24 -#define NUM_CONTROL_URBS 16 - -struct usb_bluetooth { - int magic; - struct usb_device * dev; - struct tty_driver * tty_driver; /* the tty_driver for this device */ - struct tty_struct * tty; /* the corresponding tty for this port */ - - unsigned char minor; /* the starting minor number for this device */ - int throttle; /* throttled by tty layer */ - int open_count; - - __u8 control_out_bInterfaceNum; - struct urb * control_urb_pool[NUM_CONTROL_URBS]; - struct usb_ctrlrequest dr[NUM_CONTROL_URBS]; - - unsigned char * interrupt_in_buffer; - struct urb * interrupt_in_urb; - __u8 interrupt_in_endpointAddress; - __u8 interrupt_in_interval; - int interrupt_in_buffer_size; - - unsigned char * bulk_in_buffer; - struct urb * read_urb; - __u8 bulk_in_endpointAddress; - int bulk_in_buffer_size; - - int bulk_out_buffer_size; - __u8 bulk_out_endpointAddress; - - wait_queue_head_t write_wait; - - struct work_struct work; /* work queue entry for line discipline waking up */ - - unsigned int int_packet_pos; - unsigned char int_buffer[EVENT_BUFFER_SIZE]; - unsigned int bulk_packet_pos; - unsigned char bulk_buffer[ACL_BUFFER_SIZE]; /* 64k preallocated, fix? */ - struct semaphore lock; -}; - - -/* local function prototypes */ -static int bluetooth_open (struct tty_struct *tty, struct file *filp); -static void bluetooth_close (struct tty_struct *tty, struct file *filp); -static int bluetooth_write (struct tty_struct *tty, const unsigned char *buf, int count); -static int bluetooth_write_room (struct tty_struct *tty); -static int bluetooth_chars_in_buffer (struct tty_struct *tty); -static void bluetooth_throttle (struct tty_struct *tty); -static void bluetooth_unthrottle (struct tty_struct *tty); -static int bluetooth_ioctl (struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg); -static void bluetooth_set_termios (struct tty_struct *tty, struct termios *old); - -static void bluetooth_int_callback (struct urb *urb, struct pt_regs *regs); -static void bluetooth_ctrl_callback (struct urb *urb, struct pt_regs *regs); -static void bluetooth_read_bulk_callback (struct urb *urb, struct pt_regs *regs); -static void bluetooth_write_bulk_callback (struct urb *urb, struct pt_regs *regs); - -static int usb_bluetooth_probe (struct usb_interface *intf, - const struct usb_device_id *id); -static void usb_bluetooth_disconnect (struct usb_interface *intf); - - -static struct usb_device_id usb_bluetooth_ids [] = { - { USB_DEVICE_INFO(WIRELESS_CLASS_CODE, RF_SUBCLASS_CODE, BLUETOOTH_PROGRAMMING_PROTOCOL_CODE) }, - { } /* Terminating entry */ -}; - -MODULE_DEVICE_TABLE (usb, usb_bluetooth_ids); - -static struct usb_driver usb_bluetooth_driver = { - .owner = THIS_MODULE, - .name = "bluetty", - .probe = usb_bluetooth_probe, - .disconnect = usb_bluetooth_disconnect, - .id_table = usb_bluetooth_ids, -}; - -static struct tty_driver *bluetooth_tty_driver; -static struct usb_bluetooth *bluetooth_table[BLUETOOTH_TTY_MINORS]; - - -static inline int bluetooth_paranoia_check (struct usb_bluetooth *bluetooth, const char *function) -{ - if (!bluetooth) { - dbg("%s - bluetooth == NULL", function); - return -1; - } - if (bluetooth->magic != USB_BLUETOOTH_MAGIC) { - dbg("%s - bad magic number for bluetooth", function); - return -1; - } - - return 0; -} - - -static inline struct usb_bluetooth* get_usb_bluetooth (struct usb_bluetooth *bluetooth, const char *function) -{ - if (!bluetooth || - bluetooth_paranoia_check (bluetooth, function)) { - /* then say that we don't have a valid usb_bluetooth thing, which will - * end up generating -ENODEV return values */ - return NULL; - } - - return bluetooth; -} - - -static inline struct usb_bluetooth *get_bluetooth_by_index (int index) -{ - return bluetooth_table[index]; -} - - -static int bluetooth_ctrl_msg (struct usb_bluetooth *bluetooth, int request, int value, const unsigned char *buf, int len) -{ - struct urb *urb = NULL; - struct usb_ctrlrequest *dr = NULL; - int i; - int status; - - dbg ("%s", __FUNCTION__); - - /* try to find a free urb in our list */ - for (i = 0; i < NUM_CONTROL_URBS; ++i) { - if (bluetooth->control_urb_pool[i]->status != -EINPROGRESS) { - urb = bluetooth->control_urb_pool[i]; - dr = &bluetooth->dr[i]; - break; - } - } - if (urb == NULL) { - dbg ("%s - no free urbs", __FUNCTION__); - return -ENOMEM; - } - - /* keep increasing the urb transfer buffer to fit the size of the message */ - if (urb->transfer_buffer == NULL) { - urb->transfer_buffer = kmalloc (len, GFP_KERNEL); - if (urb->transfer_buffer == NULL) { - err ("%s - out of memory", __FUNCTION__); - return -ENOMEM; - } - } - if (urb->transfer_buffer_length < len) { - kfree(urb->transfer_buffer); - urb->transfer_buffer = kmalloc (len, GFP_KERNEL); - if (urb->transfer_buffer == NULL) { - err ("%s - out of memory", __FUNCTION__); - return -ENOMEM; - } - } - memcpy (urb->transfer_buffer, buf, len); - - dr->bRequestType= BLUETOOTH_CONTROL_REQUEST_TYPE; - dr->bRequest = request; - dr->wValue = cpu_to_le16((u16) value); - dr->wIndex = cpu_to_le16((u16) bluetooth->control_out_bInterfaceNum); - dr->wLength = cpu_to_le16((u16) len); - - usb_fill_control_urb (urb, bluetooth->dev, usb_sndctrlpipe(bluetooth->dev, 0), - (unsigned char*)dr, urb->transfer_buffer, len, bluetooth_ctrl_callback, bluetooth); - - /* send it down the pipe */ - status = usb_submit_urb(urb, GFP_KERNEL); - if (status) - dbg("%s - usb_submit_urb(control) failed with status = %d", __FUNCTION__, status); - - return status; -} - - - - - -/***************************************************************************** - * Driver tty interface functions - *****************************************************************************/ -static int bluetooth_open (struct tty_struct *tty, struct file * filp) -{ - struct usb_bluetooth *bluetooth; - int result; - - dbg("%s", __FUNCTION__); - - /* initialize the pointer incase something fails */ - tty->driver_data = NULL; - - /* get the bluetooth object associated with this tty pointer */ - bluetooth = get_bluetooth_by_index (tty->index); - - if (bluetooth_paranoia_check (bluetooth, __FUNCTION__)) { - return -ENODEV; - } - - down (&bluetooth->lock); - - ++bluetooth->open_count; - if (bluetooth->open_count == 1) { - /* set up our structure making the tty driver remember our object, and us it */ - tty->driver_data = bluetooth; - bluetooth->tty = tty; - - /* force low_latency on so that our tty_push actually forces the data through, - * otherwise it is scheduled, and with high data rates (like with OHCI) data - * can get lost. */ - bluetooth->tty->low_latency = 1; - - /* Reset the packet position counters */ - bluetooth->int_packet_pos = 0; - bluetooth->bulk_packet_pos = 0; - -#ifndef BTBUGGYHARDWARE - /* Start reading from the device */ - usb_fill_bulk_urb (bluetooth->read_urb, bluetooth->dev, - usb_rcvbulkpipe(bluetooth->dev, bluetooth->bulk_in_endpointAddress), - bluetooth->bulk_in_buffer, - bluetooth->bulk_in_buffer_size, - bluetooth_read_bulk_callback, bluetooth); - result = usb_submit_urb(bluetooth->read_urb, GFP_KERNEL); - if (result) - dbg("%s - usb_submit_urb(read bulk) failed with status %d", __FUNCTION__, result); -#endif - usb_fill_int_urb (bluetooth->interrupt_in_urb, bluetooth->dev, - usb_rcvintpipe(bluetooth->dev, bluetooth->interrupt_in_endpointAddress), - bluetooth->interrupt_in_buffer, - bluetooth->interrupt_in_buffer_size, - bluetooth_int_callback, bluetooth, - bluetooth->interrupt_in_interval); - result = usb_submit_urb(bluetooth->interrupt_in_urb, GFP_KERNEL); - if (result) - dbg("%s - usb_submit_urb(interrupt in) failed with status %d", __FUNCTION__, result); - } - - up(&bluetooth->lock); - - return 0; -} - - -static void bluetooth_close (struct tty_struct *tty, struct file * filp) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - - if (!bluetooth) { - return; - } - - dbg("%s", __FUNCTION__); - - if (!bluetooth->open_count) { - dbg ("%s - device not opened", __FUNCTION__); - return; - } - - down (&bluetooth->lock); - - --bluetooth->open_count; - if (bluetooth->open_count <= 0) { - bluetooth->open_count = 0; - - /* shutdown any in-flight urbs that we know about */ - usb_kill_urb (bluetooth->read_urb); - usb_kill_urb (bluetooth->interrupt_in_urb); - } - up(&bluetooth->lock); -} - - -static int bluetooth_write (struct tty_struct * tty, const unsigned char *buf, int count) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - struct urb *urb = NULL; - unsigned char *temp_buffer = NULL; - const unsigned char *current_buffer; - unsigned char *urb_buffer; - int i; - int retval = 0; - - if (!bluetooth) { - return -ENODEV; - } - - dbg("%s - %d byte(s)", __FUNCTION__, count); - - if (!bluetooth->open_count) { - dbg ("%s - device not opened", __FUNCTION__); - return -EINVAL; - } - - if (count == 0) { - dbg("%s - write request of 0 bytes", __FUNCTION__); - return 0; - } - if (count == 1) { - dbg("%s - write request only included type %d", __FUNCTION__, buf[0]); - return 1; - } - -#ifdef DEBUG - printk (KERN_DEBUG __FILE__ ": %s - length = %d, data = ", __FUNCTION__, count); - for (i = 0; i < count; ++i) { - printk ("%.2x ", buf[i]); - } - printk ("\n"); -#endif - - current_buffer = buf; - - switch (*current_buffer) { - /* First byte indicates the type of packet */ - case CMD_PKT: - /* dbg("%s- Send cmd_pkt len:%d", __FUNCTION__, count);*/ - - retval = bluetooth_ctrl_msg (bluetooth, 0x00, 0x00, ¤t_buffer[1], count-1); - if (retval) { - goto exit; - } - retval = count; - break; - - case ACL_PKT: - ++current_buffer; - --count; - - urb_buffer = kmalloc (count, GFP_ATOMIC); - if (!urb_buffer) { - dev_err(&bluetooth->dev->dev, "out of memory\n"); - retval = -ENOMEM; - goto exit; - } - - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - dev_err(&bluetooth->dev->dev, "no more free urbs\n"); - kfree(urb_buffer); - retval = -ENOMEM; - goto exit; - } - memcpy (urb_buffer, current_buffer, count); - - /* build up our urb */ - usb_fill_bulk_urb(urb, bluetooth->dev, - usb_sndbulkpipe(bluetooth->dev, - bluetooth->bulk_out_endpointAddress), - urb_buffer, - count, - bluetooth_write_bulk_callback, - bluetooth); - - - /* send it down the pipe */ - retval = usb_submit_urb(urb, GFP_KERNEL); - if (retval) { - dbg("%s - usb_submit_urb(write bulk) failed with error = %d", __FUNCTION__, retval); - goto exit; - } - - /* we are done with this urb, so let the host driver - * really free it when it is finished with it */ - usb_free_urb (urb); - retval = count + 1; - break; - - default : - dbg("%s - unsupported (at this time) write type", __FUNCTION__); - retval = -EINVAL; - break; - } - -exit: - kfree(temp_buffer); - - return retval; -} - - -static int bluetooth_write_room (struct tty_struct *tty) -{ - dbg("%s", __FUNCTION__); - - /* - * We really can take anything the user throws at us - * but let's pick a nice big number to tell the tty - * layer that we have lots of free space - */ - return 2048; -} - - -static int bluetooth_chars_in_buffer (struct tty_struct *tty) -{ - dbg("%s", __FUNCTION__); - - /* - * We can't really account for how much data we - * have sent out, but hasn't made it through to the - * device, so just tell the tty layer that everything - * is flushed. - */ - return 0; -} - - -static void bluetooth_throttle (struct tty_struct * tty) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - - if (!bluetooth) { - return; - } - - dbg("%s", __FUNCTION__); - - if (!bluetooth->open_count) { - dbg ("%s - device not open", __FUNCTION__); - return; - } - - dbg("%s unsupported (at this time)", __FUNCTION__); - - return; -} - - -static void bluetooth_unthrottle (struct tty_struct * tty) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - - if (!bluetooth) { - return; - } - - dbg("%s", __FUNCTION__); - - if (!bluetooth->open_count) { - dbg ("%s - device not open", __FUNCTION__); - return; - } - - dbg("%s unsupported (at this time)", __FUNCTION__); -} - - -static int bluetooth_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - - if (!bluetooth) { - return -ENODEV; - } - - dbg("%s - cmd 0x%.4x", __FUNCTION__, cmd); - - if (!bluetooth->open_count) { - dbg ("%s - device not open", __FUNCTION__); - return -ENODEV; - } - - /* FIXME!!! */ - return -ENOIOCTLCMD; -} - - -static void bluetooth_set_termios (struct tty_struct *tty, struct termios * old) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - - if (!bluetooth) { - return; - } - - dbg("%s", __FUNCTION__); - - if (!bluetooth->open_count) { - dbg ("%s - device not open", __FUNCTION__); - return; - } - - /* FIXME!!! */ - - return; -} - - -#ifdef BTBUGGYHARDWARE -void btusb_enable_bulk_read(struct tty_struct *tty){ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - int result; - - if (!bluetooth) { - return; - } - - dbg("%s", __FUNCTION__); - - if (!bluetooth->open_count) { - dbg ("%s - device not open", __FUNCTION__); - return; - } - - if (bluetooth->read_urb) { - usb_fill_bulk_urb(bluetooth->read_urb, bluetooth->dev, - usb_rcvbulkpipe(bluetooth->dev, bluetooth->bulk_in_endpointAddress), - bluetooth->bulk_in_buffer, bluetooth->bulk_in_buffer_size, - bluetooth_read_bulk_callback, bluetooth); - result = usb_submit_urb(bluetooth->read_urb, GFP_KERNEL); - if (result) - err ("%s - failed submitting read urb, error %d", __FUNCTION__, result); - } -} - -void btusb_disable_bulk_read(struct tty_struct *tty){ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)tty->driver_data, __FUNCTION__); - - if (!bluetooth) { - return; - } - - dbg("%s", __FUNCTION__); - - if (!bluetooth->open_count) { - dbg ("%s - device not open", __FUNCTION__); - return; - } - - if ((bluetooth->read_urb) && (bluetooth->read_urb->actual_length)) - usb_kill_urb(bluetooth->read_urb); -} -#endif - - -/***************************************************************************** - * urb callback functions - *****************************************************************************/ - - -static void bluetooth_int_callback (struct urb *urb, struct pt_regs *regs) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)urb->context, __FUNCTION__); - unsigned char *data = urb->transfer_buffer; - unsigned int i; - unsigned int count = urb->actual_length; - unsigned int packet_size; - int status; - - dbg("%s", __FUNCTION__); - - if (!bluetooth) { - dbg("%s - bad bluetooth pointer, exiting", __FUNCTION__); - return; - } - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); - return; - default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); - goto exit; - } - - if (!count) { - dbg("%s - zero length int", __FUNCTION__); - goto exit; - } - - -#ifdef DEBUG - if (count) { - printk (KERN_DEBUG __FILE__ ": %s- length = %d, data = ", __FUNCTION__, count); - for (i = 0; i < count; ++i) { - printk ("%.2x ", data[i]); - } - printk ("\n"); - } -#endif - -#ifdef BTBUGGYHARDWARE - if ((count >= 2) && (data[0] == 0xFF) && (data[1] == 0x00)) { - data += 2; - count -= 2; - } - if (count == 0) { - urb->actual_length = 0; - goto exit; - } -#endif - /* We add a packet type identifier to the beginning of each - HCI frame. This makes the data in the tty look like a - serial USB devices. Each HCI frame can be broken across - multiple URBs so we buffer them until we have a full hci - packet */ - - if (!bluetooth->int_packet_pos) { - bluetooth->int_buffer[0] = EVENT_PKT; - bluetooth->int_packet_pos++; - } - - if (bluetooth->int_packet_pos + count > EVENT_BUFFER_SIZE) { - err("%s - exceeded EVENT_BUFFER_SIZE", __FUNCTION__); - bluetooth->int_packet_pos = 0; - goto exit; - } - - memcpy (&bluetooth->int_buffer[bluetooth->int_packet_pos], - urb->transfer_buffer, count); - bluetooth->int_packet_pos += count; - urb->actual_length = 0; - - if (bluetooth->int_packet_pos >= EVENT_HDR_SIZE) - packet_size = bluetooth->int_buffer[2]; - else - goto exit; - - if (packet_size + EVENT_HDR_SIZE < bluetooth->int_packet_pos) { - err("%s - packet was too long", __FUNCTION__); - bluetooth->int_packet_pos = 0; - goto exit; - } - - if (packet_size + EVENT_HDR_SIZE == bluetooth->int_packet_pos) { - for (i = 0; i < bluetooth->int_packet_pos; ++i) { - /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them */ - if (bluetooth->tty->flip.count >= TTY_FLIPBUF_SIZE) { - tty_flip_buffer_push(bluetooth->tty); - } - tty_insert_flip_char(bluetooth->tty, bluetooth->int_buffer[i], 0); - } - tty_flip_buffer_push(bluetooth->tty); - - bluetooth->int_packet_pos = 0; - } - -exit: - status = usb_submit_urb (urb, GFP_ATOMIC); - if (status) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, status); -} - - -static void bluetooth_ctrl_callback (struct urb *urb, struct pt_regs *regs) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)urb->context, __FUNCTION__); - - dbg("%s", __FUNCTION__); - - if (!bluetooth) { - dbg("%s - bad bluetooth pointer, exiting", __FUNCTION__); - return; - } - - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); - return; - } -} - - -static void bluetooth_read_bulk_callback (struct urb *urb, struct pt_regs *regs) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)urb->context, __FUNCTION__); - unsigned char *data = urb->transfer_buffer; - unsigned int count = urb->actual_length; - unsigned int i; - unsigned int packet_size; - int result; - - - dbg("%s", __FUNCTION__); - - if (!bluetooth) { - dbg("%s - bad bluetooth pointer, exiting", __FUNCTION__); - return; - } - - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); - if (urb->status == -ENOENT) { - dbg("%s - URB canceled, won't reschedule", __FUNCTION__); - return; - } - goto exit; - } - - if (!count) { - dbg("%s - zero length read bulk", __FUNCTION__); - goto exit; - } - -#ifdef DEBUG - if (count) { - printk (KERN_DEBUG __FILE__ ": %s- length = %d, data = ", __FUNCTION__, count); - for (i = 0; i < count; ++i) { - printk ("%.2x ", data[i]); - } - printk ("\n"); - } -#endif -#ifdef BTBUGGYHARDWARE - if ((count == 4) && (data[0] == 0x00) && (data[1] == 0x00) - && (data[2] == 0x00) && (data[3] == 0x00)) { - urb->actual_length = 0; - usb_fill_bulk_urb(bluetooth->read_urb, bluetooth->dev, - usb_rcvbulkpipe(bluetooth->dev, bluetooth->bulk_in_endpointAddress), - bluetooth->bulk_in_buffer, bluetooth->bulk_in_buffer_size, - bluetooth_read_bulk_callback, bluetooth); - result = usb_submit_urb(bluetooth->read_urb, GFP_KERNEL); - if (result) - err ("%s - failed resubmitting read urb, error %d", __FUNCTION__, result); - - return; - } -#endif - /* We add a packet type identifier to the beginning of each - HCI frame. This makes the data in the tty look like a - serial USB devices. Each HCI frame can be broken across - multiple URBs so we buffer them until we have a full hci - packet */ - - if (!bluetooth->bulk_packet_pos) { - bluetooth->bulk_buffer[0] = ACL_PKT; - bluetooth->bulk_packet_pos++; - } - - if (bluetooth->bulk_packet_pos + count > ACL_BUFFER_SIZE) { - err("%s - exceeded ACL_BUFFER_SIZE", __FUNCTION__); - bluetooth->bulk_packet_pos = 0; - goto exit; - } - - memcpy (&bluetooth->bulk_buffer[bluetooth->bulk_packet_pos], - urb->transfer_buffer, count); - bluetooth->bulk_packet_pos += count; - urb->actual_length = 0; - - if (bluetooth->bulk_packet_pos >= ACL_HDR_SIZE) { - packet_size = CHAR2INT16(bluetooth->bulk_buffer[4],bluetooth->bulk_buffer[3]); - } else { - goto exit; - } - - if (packet_size + ACL_HDR_SIZE < bluetooth->bulk_packet_pos) { - err("%s - packet was too long", __FUNCTION__); - bluetooth->bulk_packet_pos = 0; - goto exit; - } - - if (packet_size + ACL_HDR_SIZE == bluetooth->bulk_packet_pos) { - for (i = 0; i < bluetooth->bulk_packet_pos; ++i) { - /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */ - if (bluetooth->tty->flip.count >= TTY_FLIPBUF_SIZE) { - tty_flip_buffer_push(bluetooth->tty); - } - tty_insert_flip_char(bluetooth->tty, bluetooth->bulk_buffer[i], 0); - } - tty_flip_buffer_push(bluetooth->tty); - bluetooth->bulk_packet_pos = 0; - } - -exit: - if (!bluetooth || !bluetooth->open_count) - return; - - usb_fill_bulk_urb(bluetooth->read_urb, bluetooth->dev, - usb_rcvbulkpipe(bluetooth->dev, bluetooth->bulk_in_endpointAddress), - bluetooth->bulk_in_buffer, bluetooth->bulk_in_buffer_size, - bluetooth_read_bulk_callback, bluetooth); - result = usb_submit_urb(bluetooth->read_urb, GFP_KERNEL); - if (result) - err ("%s - failed resubmitting read urb, error %d", __FUNCTION__, result); - - return; -} - - -static void bluetooth_write_bulk_callback (struct urb *urb, struct pt_regs *regs) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)urb->context, __FUNCTION__); - - dbg("%s", __FUNCTION__); - - /* free up the transfer buffer, as usb_free_urb() does not do this */ - kfree(urb->transfer_buffer); - - if (!bluetooth) { - dbg("%s - bad bluetooth pointer, exiting", __FUNCTION__); - return; - } - - if (urb->status) { - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); - return; - } - - /* wake up our little function to let the tty layer know that something happened */ - schedule_work(&bluetooth->work); -} - - -static void bluetooth_softint(void *private) -{ - struct usb_bluetooth *bluetooth = get_usb_bluetooth ((struct usb_bluetooth *)private, __FUNCTION__); - - dbg("%s", __FUNCTION__); - - if (!bluetooth) - return; - - tty_wakeup(bluetooth->tty); -} - - -static int usb_bluetooth_probe (struct usb_interface *intf, - const struct usb_device_id *id) -{ - struct usb_device *dev = interface_to_usbdev (intf); - struct usb_bluetooth *bluetooth = NULL; - struct usb_host_interface *interface; - struct usb_endpoint_descriptor *endpoint; - struct usb_endpoint_descriptor *interrupt_in_endpoint[8]; - struct usb_endpoint_descriptor *bulk_in_endpoint[8]; - struct usb_endpoint_descriptor *bulk_out_endpoint[8]; - int control_out_endpoint; - - int minor; - int buffer_size; - int i; - int num_interrupt_in = 0; - int num_bulk_in = 0; - int num_bulk_out = 0; - - interface = intf->cur_altsetting; - control_out_endpoint = interface->desc.bInterfaceNumber; - - /* find the endpoints that we need */ - for (i = 0; i < interface->desc.bNumEndpoints; ++i) { - endpoint = &interface->endpoint[i].desc; - - if ((endpoint->bEndpointAddress & 0x80) && - ((endpoint->bmAttributes & 3) == 0x02)) { - /* we found a bulk in endpoint */ - dbg("found bulk in"); - bulk_in_endpoint[num_bulk_in] = endpoint; - ++num_bulk_in; - } - - if (((endpoint->bEndpointAddress & 0x80) == 0x00) && - ((endpoint->bmAttributes & 3) == 0x02)) { - /* we found a bulk out endpoint */ - dbg("found bulk out"); - bulk_out_endpoint[num_bulk_out] = endpoint; - ++num_bulk_out; - } - - if ((endpoint->bEndpointAddress & 0x80) && - ((endpoint->bmAttributes & 3) == 0x03)) { - /* we found a interrupt in endpoint */ - dbg("found interrupt in"); - interrupt_in_endpoint[num_interrupt_in] = endpoint; - ++num_interrupt_in; - } - } - - /* according to the spec, we can only have 1 bulk_in, 1 bulk_out, and 1 interrupt_in endpoints */ - if ((num_bulk_in != 1) || - (num_bulk_out != 1) || - (num_interrupt_in != 1)) { - dbg ("%s - improper number of endpoints. Bluetooth driver not bound.", __FUNCTION__); - return -EIO; - } - - info("USB Bluetooth converter detected"); - - for (minor = 0; minor < BLUETOOTH_TTY_MINORS && bluetooth_table[minor]; ++minor) - ; - if (bluetooth_table[minor]) { - err("No more free Bluetooth devices"); - return -ENODEV; - } - - if (!(bluetooth = kmalloc(sizeof(struct usb_bluetooth), GFP_KERNEL))) { - err("Out of memory"); - return -ENOMEM; - } - - memset(bluetooth, 0, sizeof(struct usb_bluetooth)); - - bluetooth->magic = USB_BLUETOOTH_MAGIC; - bluetooth->dev = dev; - bluetooth->minor = minor; - INIT_WORK(&bluetooth->work, bluetooth_softint, bluetooth); - init_MUTEX(&bluetooth->lock); - - /* record the interface number for the control out */ - bluetooth->control_out_bInterfaceNum = control_out_endpoint; - - /* create our control out urb pool */ - for (i = 0; i < NUM_CONTROL_URBS; ++i) { - struct urb *urb = usb_alloc_urb(0, GFP_KERNEL); - if (urb == NULL) { - err("No free urbs available"); - goto probe_error; - } - urb->transfer_buffer = NULL; - bluetooth->control_urb_pool[i] = urb; - } - - /* set up the endpoint information */ - endpoint = bulk_in_endpoint[0]; - bluetooth->read_urb = usb_alloc_urb (0, GFP_KERNEL); - if (!bluetooth->read_urb) { - err("No free urbs available"); - goto probe_error; - } - bluetooth->bulk_in_buffer_size = buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); - bluetooth->bulk_in_endpointAddress = endpoint->bEndpointAddress; - bluetooth->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL); - if (!bluetooth->bulk_in_buffer) { - err("Couldn't allocate bulk_in_buffer"); - goto probe_error; - } - usb_fill_bulk_urb(bluetooth->read_urb, dev, usb_rcvbulkpipe(dev, endpoint->bEndpointAddress), - bluetooth->bulk_in_buffer, buffer_size, bluetooth_read_bulk_callback, bluetooth); - - endpoint = bulk_out_endpoint[0]; - bluetooth->bulk_out_endpointAddress = endpoint->bEndpointAddress; - bluetooth->bulk_out_buffer_size = le16_to_cpu(endpoint->wMaxPacketSize) * 2; - - endpoint = interrupt_in_endpoint[0]; - bluetooth->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL); - if (!bluetooth->interrupt_in_urb) { - err("No free urbs available"); - goto probe_error; - } - bluetooth->interrupt_in_buffer_size = buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); - bluetooth->interrupt_in_endpointAddress = endpoint->bEndpointAddress; - bluetooth->interrupt_in_interval = endpoint->bInterval; - bluetooth->interrupt_in_buffer = kmalloc (buffer_size, GFP_KERNEL); - if (!bluetooth->interrupt_in_buffer) { - err("Couldn't allocate interrupt_in_buffer"); - goto probe_error; - } - usb_fill_int_urb(bluetooth->interrupt_in_urb, dev, usb_rcvintpipe(dev, endpoint->bEndpointAddress), - bluetooth->interrupt_in_buffer, buffer_size, bluetooth_int_callback, - bluetooth, endpoint->bInterval); - - /* initialize the devfs nodes for this device and let the user know what bluetooths we are bound to */ - tty_register_device (bluetooth_tty_driver, minor, &intf->dev); - info("Bluetooth converter now attached to ttyUB%d (or usb/ttub/%d for devfs)", minor, minor); - - bluetooth_table[minor] = bluetooth; - - /* success */ - usb_set_intfdata (intf, bluetooth); - return 0; - -probe_error: - if (bluetooth->read_urb) - usb_free_urb (bluetooth->read_urb); - if (bluetooth->bulk_in_buffer) - kfree (bluetooth->bulk_in_buffer); - if (bluetooth->interrupt_in_urb) - usb_free_urb (bluetooth->interrupt_in_urb); - if (bluetooth->interrupt_in_buffer) - kfree (bluetooth->interrupt_in_buffer); - for (i = 0; i < NUM_CONTROL_URBS; ++i) - if (bluetooth->control_urb_pool[i]) { - if (bluetooth->control_urb_pool[i]->transfer_buffer) - kfree (bluetooth->control_urb_pool[i]->transfer_buffer); - usb_free_urb (bluetooth->control_urb_pool[i]); - } - - bluetooth_table[minor] = NULL; - - /* free up any memory that we allocated */ - kfree (bluetooth); - return -EIO; -} - - -static void usb_bluetooth_disconnect(struct usb_interface *intf) -{ - struct usb_bluetooth *bluetooth = usb_get_intfdata (intf); - int i; - - usb_set_intfdata (intf, NULL); - if (bluetooth) { - if ((bluetooth->open_count) && (bluetooth->tty)) - tty_hangup(bluetooth->tty); - - bluetooth->open_count = 0; - - if (bluetooth->read_urb) { - usb_kill_urb (bluetooth->read_urb); - usb_free_urb (bluetooth->read_urb); - } - if (bluetooth->bulk_in_buffer) - kfree (bluetooth->bulk_in_buffer); - - if (bluetooth->interrupt_in_urb) { - usb_kill_urb (bluetooth->interrupt_in_urb); - usb_free_urb (bluetooth->interrupt_in_urb); - } - if (bluetooth->interrupt_in_buffer) - kfree (bluetooth->interrupt_in_buffer); - - tty_unregister_device (bluetooth_tty_driver, bluetooth->minor); - - for (i = 0; i < NUM_CONTROL_URBS; ++i) { - if (bluetooth->control_urb_pool[i]) { - usb_kill_urb (bluetooth->control_urb_pool[i]); - if (bluetooth->control_urb_pool[i]->transfer_buffer) - kfree (bluetooth->control_urb_pool[i]->transfer_buffer); - usb_free_urb (bluetooth->control_urb_pool[i]); - } - } - - info("Bluetooth converter now disconnected from ttyUB%d", bluetooth->minor); - - bluetooth_table[bluetooth->minor] = NULL; - - /* free up any memory that we allocated */ - kfree (bluetooth); - } else { - info("device disconnected"); - } -} - -static struct tty_operations bluetooth_ops = { - .open = bluetooth_open, - .close = bluetooth_close, - .write = bluetooth_write, - .write_room = bluetooth_write_room, - .ioctl = bluetooth_ioctl, - .set_termios = bluetooth_set_termios, - .throttle = bluetooth_throttle, - .unthrottle = bluetooth_unthrottle, - .chars_in_buffer = bluetooth_chars_in_buffer, -}; - -static int usb_bluetooth_init(void) -{ - int i; - int result; - - /* Initialize our global data */ - for (i = 0; i < BLUETOOTH_TTY_MINORS; ++i) { - bluetooth_table[i] = NULL; - } - - info ("USB Bluetooth support registered"); - - bluetooth_tty_driver = alloc_tty_driver(BLUETOOTH_TTY_MINORS); - if (!bluetooth_tty_driver) - return -ENOMEM; - - bluetooth_tty_driver->owner = THIS_MODULE; - bluetooth_tty_driver->driver_name = "usb-bluetooth"; - bluetooth_tty_driver->name = "ttyUB"; - bluetooth_tty_driver->devfs_name = "usb/ttub/"; - bluetooth_tty_driver->major = BLUETOOTH_TTY_MAJOR; - bluetooth_tty_driver->minor_start = 0; - bluetooth_tty_driver->type = TTY_DRIVER_TYPE_SERIAL; - bluetooth_tty_driver->subtype = SERIAL_TYPE_NORMAL; - bluetooth_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS; - bluetooth_tty_driver->init_termios = tty_std_termios; - bluetooth_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; - tty_set_operations(bluetooth_tty_driver, &bluetooth_ops); - if (tty_register_driver (bluetooth_tty_driver)) { - err("%s - failed to register tty driver", __FUNCTION__); - put_tty_driver(bluetooth_tty_driver); - return -1; - } - - /* register the USB driver */ - result = usb_register(&usb_bluetooth_driver); - if (result < 0) { - tty_unregister_driver(bluetooth_tty_driver); - put_tty_driver(bluetooth_tty_driver); - err("usb_register failed for the USB bluetooth driver. Error number %d", result); - return -1; - } - - info(DRIVER_DESC " " DRIVER_VERSION); - - return 0; -} - - -static void usb_bluetooth_exit(void) -{ - usb_deregister(&usb_bluetooth_driver); - tty_unregister_driver(bluetooth_tty_driver); - put_tty_driver(bluetooth_tty_driver); -} - - -module_init(usb_bluetooth_init); -module_exit(usb_bluetooth_exit); - -/* Module information */ -MODULE_AUTHOR( DRIVER_AUTHOR ); -MODULE_DESCRIPTION( DRIVER_DESC ); -MODULE_LICENSE("GPL"); - |