2008-08-18 18:39:30 -06:00
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/*
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|
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* f_obex.c -- USB CDC OBEX function driver
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*
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* Copyright (C) 2008 Nokia Corporation
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* Contact: Felipe Balbi <felipe.balbi@nokia.com>
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*
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* Based on f_acm.c by Al Borchers and David Brownell.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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/* #define VERBOSE_DEBUG */
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 02:04:11 -06:00
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|
#include <linux/slab.h>
|
2008-08-18 18:39:30 -06:00
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|
#include <linux/kernel.h>
|
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|
#include <linux/device.h>
|
2011-07-03 14:09:31 -06:00
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|
#include <linux/module.h>
|
2008-08-18 18:39:30 -06:00
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|
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#include "u_serial.h"
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|
#include "gadget_chips.h"
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|
|
/*
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|
* This CDC OBEX function support just packages a TTY-ish byte stream.
|
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|
* A user mode server will put it into "raw" mode and handle all the
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|
|
* relevant protocol details ... this is just a kernel passthrough.
|
2008-08-18 18:45:25 -06:00
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|
* When possible, we prevent gadget enumeration until that server is
|
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|
|
* ready to handle the commands.
|
2008-08-18 18:39:30 -06:00
|
|
|
*/
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|
struct f_obex {
|
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|
|
struct gserial port;
|
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|
|
u8 ctrl_id;
|
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|
|
u8 data_id;
|
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|
|
u8 port_num;
|
2008-08-18 18:45:25 -06:00
|
|
|
u8 can_activate;
|
2008-08-18 18:39:30 -06:00
|
|
|
};
|
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|
static inline struct f_obex *func_to_obex(struct usb_function *f)
|
|
|
|
{
|
|
|
|
return container_of(f, struct f_obex, port.func);
|
|
|
|
}
|
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|
2008-08-18 18:45:25 -06:00
|
|
|
static inline struct f_obex *port_to_obex(struct gserial *p)
|
|
|
|
{
|
|
|
|
return container_of(p, struct f_obex, port);
|
|
|
|
}
|
|
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|
2008-08-18 18:39:30 -06:00
|
|
|
/*-------------------------------------------------------------------------*/
|
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|
|
#define OBEX_CTRL_IDX 0
|
|
|
|
#define OBEX_DATA_IDX 1
|
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|
|
static struct usb_string obex_string_defs[] = {
|
|
|
|
[OBEX_CTRL_IDX].s = "CDC Object Exchange (OBEX)",
|
|
|
|
[OBEX_DATA_IDX].s = "CDC OBEX Data",
|
|
|
|
{ }, /* end of list */
|
|
|
|
};
|
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|
|
static struct usb_gadget_strings obex_string_table = {
|
|
|
|
.language = 0x0409, /* en-US */
|
|
|
|
.strings = obex_string_defs,
|
|
|
|
};
|
|
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|
|
static struct usb_gadget_strings *obex_strings[] = {
|
|
|
|
&obex_string_table,
|
|
|
|
NULL,
|
|
|
|
};
|
|
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|
|
|
|
|
/*-------------------------------------------------------------------------*/
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static struct usb_interface_descriptor obex_control_intf __initdata = {
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|
.bLength = sizeof(obex_control_intf),
|
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|
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
|
|
.bInterfaceNumber = 0,
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|
|
|
|
|
|
|
.bAlternateSetting = 0,
|
|
|
|
.bNumEndpoints = 0,
|
|
|
|
.bInterfaceClass = USB_CLASS_COMM,
|
|
|
|
.bInterfaceSubClass = USB_CDC_SUBCLASS_OBEX,
|
|
|
|
};
|
|
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|
|
static struct usb_interface_descriptor obex_data_nop_intf __initdata = {
|
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|
|
.bLength = sizeof(obex_data_nop_intf),
|
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|
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
|
|
.bInterfaceNumber = 1,
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|
|
|
|
|
.bAlternateSetting = 0,
|
|
|
|
.bNumEndpoints = 0,
|
|
|
|
.bInterfaceClass = USB_CLASS_CDC_DATA,
|
|
|
|
};
|
|
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|
|
static struct usb_interface_descriptor obex_data_intf __initdata = {
|
|
|
|
.bLength = sizeof(obex_data_intf),
|
|
|
|
.bDescriptorType = USB_DT_INTERFACE,
|
|
|
|
.bInterfaceNumber = 2,
|
|
|
|
|
|
|
|
.bAlternateSetting = 1,
|
|
|
|
.bNumEndpoints = 2,
|
|
|
|
.bInterfaceClass = USB_CLASS_CDC_DATA,
|
|
|
|
};
|
|
|
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|
|
static struct usb_cdc_header_desc obex_cdc_header_desc __initdata = {
|
|
|
|
.bLength = sizeof(obex_cdc_header_desc),
|
|
|
|
.bDescriptorType = USB_DT_CS_INTERFACE,
|
|
|
|
.bDescriptorSubType = USB_CDC_HEADER_TYPE,
|
2009-02-11 15:11:36 -07:00
|
|
|
.bcdCDC = cpu_to_le16(0x0120),
|
2008-08-18 18:39:30 -06:00
|
|
|
};
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|
static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = {
|
|
|
|
.bLength = sizeof(obex_cdc_union_desc),
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|
|
.bDescriptorType = USB_DT_CS_INTERFACE,
|
|
|
|
.bDescriptorSubType = USB_CDC_UNION_TYPE,
|
|
|
|
.bMasterInterface0 = 1,
|
|
|
|
.bSlaveInterface0 = 2,
|
|
|
|
};
|
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|
static struct usb_cdc_obex_desc obex_desc __initdata = {
|
|
|
|
.bLength = sizeof(obex_desc),
|
|
|
|
.bDescriptorType = USB_DT_CS_INTERFACE,
|
|
|
|
.bDescriptorSubType = USB_CDC_OBEX_TYPE,
|
2009-02-11 15:11:36 -07:00
|
|
|
.bcdVersion = cpu_to_le16(0x0100),
|
2008-08-18 18:39:30 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
/* High-Speed Support */
|
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|
static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = {
|
|
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
|
|
|
|
.bEndpointAddress = USB_DIR_OUT,
|
|
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
2009-02-11 15:11:36 -07:00
|
|
|
.wMaxPacketSize = cpu_to_le16(512),
|
2008-08-18 18:39:30 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = {
|
|
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
|
|
|
|
.bEndpointAddress = USB_DIR_IN,
|
|
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
2009-02-11 15:11:36 -07:00
|
|
|
.wMaxPacketSize = cpu_to_le16(512),
|
2008-08-18 18:39:30 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct usb_descriptor_header *hs_function[] __initdata = {
|
|
|
|
(struct usb_descriptor_header *) &obex_control_intf,
|
|
|
|
(struct usb_descriptor_header *) &obex_cdc_header_desc,
|
|
|
|
(struct usb_descriptor_header *) &obex_desc,
|
|
|
|
(struct usb_descriptor_header *) &obex_cdc_union_desc,
|
|
|
|
|
|
|
|
(struct usb_descriptor_header *) &obex_data_nop_intf,
|
|
|
|
(struct usb_descriptor_header *) &obex_data_intf,
|
|
|
|
(struct usb_descriptor_header *) &obex_hs_ep_in_desc,
|
|
|
|
(struct usb_descriptor_header *) &obex_hs_ep_out_desc,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Full-Speed Support */
|
|
|
|
|
|
|
|
static struct usb_endpoint_descriptor obex_fs_ep_in_desc __initdata = {
|
|
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
|
|
|
|
.bEndpointAddress = USB_DIR_IN,
|
|
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct usb_endpoint_descriptor obex_fs_ep_out_desc __initdata = {
|
|
|
|
.bLength = USB_DT_ENDPOINT_SIZE,
|
|
|
|
.bDescriptorType = USB_DT_ENDPOINT,
|
|
|
|
|
|
|
|
.bEndpointAddress = USB_DIR_OUT,
|
|
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct usb_descriptor_header *fs_function[] __initdata = {
|
|
|
|
(struct usb_descriptor_header *) &obex_control_intf,
|
|
|
|
(struct usb_descriptor_header *) &obex_cdc_header_desc,
|
|
|
|
(struct usb_descriptor_header *) &obex_desc,
|
|
|
|
(struct usb_descriptor_header *) &obex_cdc_union_desc,
|
|
|
|
|
|
|
|
(struct usb_descriptor_header *) &obex_data_nop_intf,
|
|
|
|
(struct usb_descriptor_header *) &obex_data_intf,
|
|
|
|
(struct usb_descriptor_header *) &obex_fs_ep_in_desc,
|
|
|
|
(struct usb_descriptor_header *) &obex_fs_ep_out_desc,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
static int obex_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
|
|
|
|
{
|
|
|
|
struct f_obex *obex = func_to_obex(f);
|
|
|
|
struct usb_composite_dev *cdev = f->config->cdev;
|
|
|
|
|
|
|
|
if (intf == obex->ctrl_id) {
|
|
|
|
if (alt != 0)
|
|
|
|
goto fail;
|
|
|
|
/* NOP */
|
|
|
|
DBG(cdev, "reset obex ttyGS%d control\n", obex->port_num);
|
|
|
|
|
|
|
|
} else if (intf == obex->data_id) {
|
|
|
|
if (alt > 1)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
if (obex->port.in->driver_data) {
|
|
|
|
DBG(cdev, "reset obex ttyGS%d\n", obex->port_num);
|
|
|
|
gserial_disconnect(&obex->port);
|
|
|
|
}
|
|
|
|
|
2011-06-28 07:33:50 -06:00
|
|
|
if (!obex->port.in->desc || !obex->port.out->desc) {
|
2008-08-18 18:39:30 -06:00
|
|
|
DBG(cdev, "init obex ttyGS%d\n", obex->port_num);
|
2011-06-28 07:33:50 -06:00
|
|
|
if (config_ep_by_speed(cdev->gadget, f,
|
|
|
|
obex->port.in) ||
|
|
|
|
config_ep_by_speed(cdev->gadget, f,
|
|
|
|
obex->port.out)) {
|
|
|
|
obex->port.out->desc = NULL;
|
|
|
|
obex->port.in->desc = NULL;
|
|
|
|
goto fail;
|
|
|
|
}
|
2008-08-18 18:39:30 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
if (alt == 1) {
|
|
|
|
DBG(cdev, "activate obex ttyGS%d\n", obex->port_num);
|
|
|
|
gserial_connect(&obex->port, obex->port_num);
|
|
|
|
}
|
|
|
|
|
|
|
|
} else
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fail:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int obex_get_alt(struct usb_function *f, unsigned intf)
|
|
|
|
{
|
|
|
|
struct f_obex *obex = func_to_obex(f);
|
|
|
|
|
|
|
|
if (intf == obex->ctrl_id)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return obex->port.in->driver_data ? 1 : 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void obex_disable(struct usb_function *f)
|
|
|
|
{
|
|
|
|
struct f_obex *obex = func_to_obex(f);
|
|
|
|
struct usb_composite_dev *cdev = f->config->cdev;
|
|
|
|
|
|
|
|
DBG(cdev, "obex ttyGS%d disable\n", obex->port_num);
|
|
|
|
gserial_disconnect(&obex->port);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
2008-08-18 18:45:25 -06:00
|
|
|
static void obex_connect(struct gserial *g)
|
|
|
|
{
|
|
|
|
struct f_obex *obex = port_to_obex(g);
|
|
|
|
struct usb_composite_dev *cdev = g->func.config->cdev;
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!obex->can_activate)
|
|
|
|
return;
|
|
|
|
|
|
|
|
status = usb_function_activate(&g->func);
|
|
|
|
if (status)
|
|
|
|
DBG(cdev, "obex ttyGS%d function activate --> %d\n",
|
|
|
|
obex->port_num, status);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void obex_disconnect(struct gserial *g)
|
|
|
|
{
|
|
|
|
struct f_obex *obex = port_to_obex(g);
|
|
|
|
struct usb_composite_dev *cdev = g->func.config->cdev;
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!obex->can_activate)
|
|
|
|
return;
|
|
|
|
|
|
|
|
status = usb_function_deactivate(&g->func);
|
|
|
|
if (status)
|
|
|
|
DBG(cdev, "obex ttyGS%d function deactivate --> %d\n",
|
|
|
|
obex->port_num, status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
2008-08-18 18:39:30 -06:00
|
|
|
static int __init
|
|
|
|
obex_bind(struct usb_configuration *c, struct usb_function *f)
|
|
|
|
{
|
|
|
|
struct usb_composite_dev *cdev = c->cdev;
|
|
|
|
struct f_obex *obex = func_to_obex(f);
|
|
|
|
int status;
|
|
|
|
struct usb_ep *ep;
|
|
|
|
|
|
|
|
/* allocate instance-specific interface IDs, and patch descriptors */
|
|
|
|
|
|
|
|
status = usb_interface_id(c, f);
|
|
|
|
if (status < 0)
|
|
|
|
goto fail;
|
|
|
|
obex->ctrl_id = status;
|
|
|
|
|
|
|
|
obex_control_intf.bInterfaceNumber = status;
|
|
|
|
obex_cdc_union_desc.bMasterInterface0 = status;
|
|
|
|
|
|
|
|
status = usb_interface_id(c, f);
|
|
|
|
if (status < 0)
|
|
|
|
goto fail;
|
|
|
|
obex->data_id = status;
|
|
|
|
|
|
|
|
obex_data_nop_intf.bInterfaceNumber = status;
|
|
|
|
obex_data_intf.bInterfaceNumber = status;
|
|
|
|
obex_cdc_union_desc.bSlaveInterface0 = status;
|
|
|
|
|
|
|
|
/* allocate instance-specific endpoints */
|
|
|
|
|
|
|
|
ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_in_desc);
|
|
|
|
if (!ep)
|
|
|
|
goto fail;
|
|
|
|
obex->port.in = ep;
|
|
|
|
ep->driver_data = cdev; /* claim */
|
|
|
|
|
|
|
|
ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_out_desc);
|
|
|
|
if (!ep)
|
|
|
|
goto fail;
|
|
|
|
obex->port.out = ep;
|
|
|
|
ep->driver_data = cdev; /* claim */
|
|
|
|
|
|
|
|
/* copy descriptors, and track endpoint copies */
|
|
|
|
f->descriptors = usb_copy_descriptors(fs_function);
|
|
|
|
|
|
|
|
/* support all relevant hardware speeds... we expect that when
|
|
|
|
* hardware is dual speed, all bulk-capable endpoints work at
|
|
|
|
* both speeds
|
|
|
|
*/
|
|
|
|
if (gadget_is_dualspeed(c->cdev->gadget)) {
|
|
|
|
|
|
|
|
obex_hs_ep_in_desc.bEndpointAddress =
|
|
|
|
obex_fs_ep_in_desc.bEndpointAddress;
|
|
|
|
obex_hs_ep_out_desc.bEndpointAddress =
|
|
|
|
obex_fs_ep_out_desc.bEndpointAddress;
|
|
|
|
|
|
|
|
/* copy descriptors, and track endpoint copies */
|
|
|
|
f->hs_descriptors = usb_copy_descriptors(hs_function);
|
|
|
|
}
|
|
|
|
|
2008-08-18 18:45:25 -06:00
|
|
|
/* Avoid letting this gadget enumerate until the userspace
|
|
|
|
* OBEX server is active.
|
|
|
|
*/
|
|
|
|
status = usb_function_deactivate(f);
|
|
|
|
if (status < 0)
|
|
|
|
WARNING(cdev, "obex ttyGS%d: can't prevent enumeration, %d\n",
|
|
|
|
obex->port_num, status);
|
|
|
|
else
|
|
|
|
obex->can_activate = true;
|
|
|
|
|
|
|
|
|
2008-08-18 18:39:30 -06:00
|
|
|
DBG(cdev, "obex ttyGS%d: %s speed IN/%s OUT/%s\n",
|
|
|
|
obex->port_num,
|
|
|
|
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
|
|
|
|
obex->port.in->name, obex->port.out->name);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fail:
|
|
|
|
/* we might as well release our claims on endpoints */
|
|
|
|
if (obex->port.out)
|
|
|
|
obex->port.out->driver_data = NULL;
|
|
|
|
if (obex->port.in)
|
|
|
|
obex->port.in->driver_data = NULL;
|
|
|
|
|
|
|
|
ERROR(cdev, "%s/%p: can't bind, err %d\n", f->name, f, status);
|
|
|
|
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
obex_unbind(struct usb_configuration *c, struct usb_function *f)
|
|
|
|
{
|
|
|
|
if (gadget_is_dualspeed(c->cdev->gadget))
|
|
|
|
usb_free_descriptors(f->hs_descriptors);
|
|
|
|
usb_free_descriptors(f->descriptors);
|
|
|
|
kfree(func_to_obex(f));
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Some controllers can't support CDC OBEX ... */
|
|
|
|
static inline bool can_support_obex(struct usb_configuration *c)
|
|
|
|
{
|
|
|
|
/* Since the first interface is a NOP, we can ignore the
|
|
|
|
* issue of multi-interface support on most controllers.
|
|
|
|
*
|
|
|
|
* Altsettings are mandatory, however...
|
|
|
|
*/
|
|
|
|
if (!gadget_supports_altsettings(c->cdev->gadget))
|
|
|
|
return false;
|
|
|
|
|
|
|
|
/* everything else is *probably* fine ... */
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* obex_bind_config - add a CDC OBEX function to a configuration
|
|
|
|
* @c: the configuration to support the CDC OBEX instance
|
|
|
|
* @port_num: /dev/ttyGS* port this interface will use
|
|
|
|
* Context: single threaded during gadget setup
|
|
|
|
*
|
|
|
|
* Returns zero on success, else negative errno.
|
|
|
|
*
|
|
|
|
* Caller must have called @gserial_setup() with enough ports to
|
|
|
|
* handle all the ones it binds. Caller is also responsible
|
|
|
|
* for calling @gserial_cleanup() before module unload.
|
|
|
|
*/
|
|
|
|
int __init obex_bind_config(struct usb_configuration *c, u8 port_num)
|
|
|
|
{
|
|
|
|
struct f_obex *obex;
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!can_support_obex(c))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
/* maybe allocate device-global string IDs, and patch descriptors */
|
|
|
|
if (obex_string_defs[OBEX_CTRL_IDX].id == 0) {
|
|
|
|
status = usb_string_id(c->cdev);
|
|
|
|
if (status < 0)
|
|
|
|
return status;
|
|
|
|
obex_string_defs[OBEX_CTRL_IDX].id = status;
|
|
|
|
|
|
|
|
obex_control_intf.iInterface = status;
|
|
|
|
|
|
|
|
status = usb_string_id(c->cdev);
|
|
|
|
if (status < 0)
|
|
|
|
return status;
|
|
|
|
obex_string_defs[OBEX_DATA_IDX].id = status;
|
|
|
|
|
|
|
|
obex_data_nop_intf.iInterface =
|
|
|
|
obex_data_intf.iInterface = status;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* allocate and initialize one new instance */
|
|
|
|
obex = kzalloc(sizeof *obex, GFP_KERNEL);
|
|
|
|
if (!obex)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
obex->port_num = port_num;
|
|
|
|
|
2008-08-18 18:45:25 -06:00
|
|
|
obex->port.connect = obex_connect;
|
|
|
|
obex->port.disconnect = obex_disconnect;
|
|
|
|
|
2008-08-18 18:39:30 -06:00
|
|
|
obex->port.func.name = "obex";
|
|
|
|
obex->port.func.strings = obex_strings;
|
|
|
|
/* descriptors are per-instance copies */
|
|
|
|
obex->port.func.bind = obex_bind;
|
|
|
|
obex->port.func.unbind = obex_unbind;
|
|
|
|
obex->port.func.set_alt = obex_set_alt;
|
|
|
|
obex->port.func.get_alt = obex_get_alt;
|
|
|
|
obex->port.func.disable = obex_disable;
|
|
|
|
|
|
|
|
status = usb_add_function(c, &obex->port.func);
|
|
|
|
if (status)
|
|
|
|
kfree(obex);
|
|
|
|
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Felipe Balbi");
|
|
|
|
MODULE_LICENSE("GPL");
|