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|
// SPDX-License-Identifier: GPL-2.0
/*
* nokia.c -- Nokia Composite Gadget Driver
*
* Copyright (C) 2008-2010 Nokia Corporation
* Contact: Felipe Balbi <felipe.balbi@nokia.com>
*
* This gadget driver borrows from serial.c which is:
*
* Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
* Copyright (C) 2008 by David Brownell
* Copyright (C) 2008 by Nokia Corporation
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include "u_serial.h"
#include "u_ether.h"
#include "u_phonet.h"
#include "u_ecm.h"
#include "f_mass_storage.h"
/* Defines */
#define NOKIA_VERSION_NUM 0x0211
#define NOKIA_LONG_NAME "N900 (PC-Suite Mode)"
USB_GADGET_COMPOSITE_OPTIONS();
USB_ETHERNET_MODULE_PARAMETERS();
static struct fsg_module_parameters fsg_mod_data = {
.stall = 0,
.luns = 2,
.removable_count = 2,
.removable = { 1, 1, },
};
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
#else
/*
* Number of buffers we will use.
* 2 is usually enough for good buffering pipeline
*/
#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
#endif /* CONFIG_USB_DEBUG */
FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
#define NOKIA_VENDOR_ID 0x0421 /* Nokia */
#define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */
/* string IDs are assigned dynamically */
#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX
static char manufacturer_nokia[] = "Nokia";
static const char description_nokia[] = "PC-Suite Configuration";
static struct usb_string strings_dev[] = {
[USB_GADGET_MANUFACTURER_IDX].s = manufacturer_nokia,
[USB_GADGET_PRODUCT_IDX].s = NOKIA_LONG_NAME,
[USB_GADGET_SERIAL_IDX].s = "",
[STRING_DESCRIPTION_IDX].s = description_nokia,
{ } /* end of list */
};
static struct usb_gadget_strings stringtab_dev = {
.language = 0x0409, /* en-us */
.strings = strings_dev,
};
static struct usb_gadget_strings *dev_strings[] = {
&stringtab_dev,
NULL,
};
static struct usb_device_descriptor device_desc = {
.bLength = USB_DT_DEVICE_SIZE,
.bDescriptorType = USB_DT_DEVICE,
/* .bcdUSB = DYNAMIC */
.bDeviceClass = USB_CLASS_COMM,
.idVendor = cpu_to_le16(NOKIA_VENDOR_ID),
.idProduct = cpu_to_le16(NOKIA_PRODUCT_ID),
.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM),
/* .iManufacturer = DYNAMIC */
/* .iProduct = DYNAMIC */
.bNumConfigurations = 1,
};
/*-------------------------------------------------------------------------*/
/* Module */
MODULE_DESCRIPTION("Nokia composite gadget driver for N900");
MODULE_AUTHOR("Felipe Balbi");
MODULE_LICENSE("GPL");
/*-------------------------------------------------------------------------*/
static struct usb_function *f_acm_cfg1;
static struct usb_function *f_acm_cfg2;
static struct usb_function *f_ecm_cfg1;
static struct usb_function *f_ecm_cfg2;
static struct usb_function *f_obex1_cfg1;
static struct usb_function *f_obex2_cfg1;
static struct usb_function *f_obex1_cfg2;
static struct usb_function *f_obex2_cfg2;
static struct usb_function *f_phonet_cfg1;
static struct usb_function *f_phonet_cfg2;
static struct usb_function *f_msg_cfg1;
static struct usb_function *f_msg_cfg2;
static struct usb_configuration nokia_config_500ma_driver = {
.label = "Bus Powered",
.bConfigurationValue = 1,
/* .iConfiguration = DYNAMIC */
.bmAttributes = USB_CONFIG_ATT_ONE,
.MaxPower = 500,
};
static struct usb_configuration nokia_config_100ma_driver = {
.label = "Self Powered",
.bConfigurationValue = 2,
/* .iConfiguration = DYNAMIC */
.bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
.MaxPower = 100,
};
static struct usb_function_instance *fi_acm;
static struct usb_function_instance *fi_ecm;
static struct usb_function_instance *fi_obex1;
static struct usb_function_instance *fi_obex2;
static struct usb_function_instance *fi_phonet;
static struct usb_function_instance *fi_msg;
static int nokia_bind_config(struct usb_configuration *c)
{
struct usb_function *f_acm;
struct usb_function *f_phonet = NULL;
struct usb_function *f_obex1 = NULL;
struct usb_function *f_ecm;
struct usb_function *f_obex2 = NULL;
struct usb_function *f_msg;
int status = 0;
int obex1_stat = -1;
int obex2_stat = -1;
int phonet_stat = -1;
if (!IS_ERR(fi_phonet)) {
f_phonet = usb_get_function(fi_phonet);
if (IS_ERR(f_phonet))
pr_debug("could not get phonet function\n");
}
if (!IS_ERR(fi_obex1)) {
f_obex1 = usb_get_function(fi_obex1);
if (IS_ERR(f_obex1))
pr_debug("could not get obex function 0\n");
}
if (!IS_ERR(fi_obex2)) {
f_obex2 = usb_get_function(fi_obex2);
if (IS_ERR(f_obex2))
pr_debug("could not get obex function 1\n");
}
f_acm = usb_get_function(fi_acm);
if (IS_ERR(f_acm)) {
status = PTR_ERR(f_acm);
goto err_get_acm;
}
f_ecm = usb_get_function(fi_ecm);
if (IS_ERR(f_ecm)) {
status = PTR_ERR(f_ecm);
goto err_get_ecm;
}
f_msg = usb_get_function(fi_msg);
if (IS_ERR(f_msg)) {
status = PTR_ERR(f_msg);
goto err_get_msg;
}
if (!IS_ERR_OR_NULL(f_phonet)) {
phonet_stat = usb_add_function(c, f_phonet);
if (phonet_stat)
pr_debug("could not add phonet function\n");
}
if (!IS_ERR_OR_NULL(f_obex1)) {
obex1_stat = usb_add_function(c, f_obex1);
if (obex1_stat)
pr_debug("could not add obex function 0\n");
}
if (!IS_ERR_OR_NULL(f_obex2)) {
obex2_stat = usb_add_function(c, f_obex2);
if (obex2_stat)
pr_debug("could not add obex function 1\n");
}
status = usb_add_function(c, f_acm);
if (status)
goto err_conf;
status = usb_add_function(c, f_ecm);
if (status) {
pr_debug("could not bind ecm config %d\n", status);
goto err_ecm;
}
status = usb_add_function(c, f_msg);
if (status)
goto err_msg;
if (c == &nokia_config_500ma_driver) {
f_acm_cfg1 = f_acm;
f_ecm_cfg1 = f_ecm;
f_phonet_cfg1 = f_phonet;
f_obex1_cfg1 = f_obex1;
f_obex2_cfg1 = f_obex2;
f_msg_cfg1 = f_msg;
} else {
f_acm_cfg2 = f_acm;
f_ecm_cfg2 = f_ecm;
f_phonet_cfg2 = f_phonet;
f_obex1_cfg2 = f_obex1;
f_obex2_cfg2 = f_obex2;
f_msg_cfg2 = f_msg;
}
return status;
err_msg:
usb_remove_function(c, f_ecm);
err_ecm:
usb_remove_function(c, f_acm);
err_conf:
if (!obex2_stat)
usb_remove_function(c, f_obex2);
if (!obex1_stat)
usb_remove_function(c, f_obex1);
if (!phonet_stat)
usb_remove_function(c, f_phonet);
usb_put_function(f_msg);
err_get_msg:
usb_put_function(f_ecm);
err_get_ecm:
usb_put_function(f_acm);
err_get_acm:
if (!IS_ERR_OR_NULL(f_obex2))
usb_put_function(f_obex2);
if (!IS_ERR_OR_NULL(f_obex1))
usb_put_function(f_obex1);
if (!IS_ERR_OR_NULL(f_phonet))
usb_put_function(f_phonet);
return status;
}
static int nokia_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
struct fsg_opts *fsg_opts;
struct fsg_config fsg_config;
int status;
status = usb_string_ids_tab(cdev, strings_dev);
if (status < 0)
goto err_usb;
device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
status = strings_dev[STRING_DESCRIPTION_IDX].id;
nokia_config_500ma_driver.iConfiguration = status;
nokia_config_100ma_driver.iConfiguration = status;
if (!gadget_is_altset_supported(gadget)) {
status = -ENODEV;
goto err_usb;
}
fi_phonet = usb_get_function_instance("phonet");
if (IS_ERR(fi_phonet))
pr_debug("could not find phonet function\n");
fi_obex1 = usb_get_function_instance("obex");
if (IS_ERR(fi_obex1))
pr_debug("could not find obex function 1\n");
fi_obex2 = usb_get_function_instance("obex");
if (IS_ERR(fi_obex2))
pr_debug("could not find obex function 2\n");
fi_acm = usb_get_function_instance("acm");
if (IS_ERR(fi_acm)) {
status = PTR_ERR(fi_acm);
goto err_obex2_inst;
}
fi_ecm = usb_get_function_instance("ecm");
if (IS_ERR(fi_ecm)) {
status = PTR_ERR(fi_ecm);
goto err_acm_inst;
}
fi_msg = usb_get_function_instance("mass_storage");
if (IS_ERR(fi_msg)) {
status = PTR_ERR(fi_msg);
goto err_ecm_inst;
}
/* set up mass storage function */
fsg_config_from_params(&fsg_config, &fsg_mod_data, fsg_num_buffers);
fsg_config.vendor_name = "Nokia";
fsg_config.product_name = "N900";
fsg_opts = fsg_opts_from_func_inst(fi_msg);
fsg_opts->no_configfs = true;
status = fsg_common_set_num_buffers(fsg_opts->common, fsg_num_buffers);
if (status)
goto err_msg_inst;
status = fsg_common_set_cdev(fsg_opts->common, cdev, fsg_config.can_stall);
if (status)
goto err_msg_buf;
fsg_common_set_sysfs(fsg_opts->common, true);
status = fsg_common_create_luns(fsg_opts->common, &fsg_config);
if (status)
goto err_msg_buf;
fsg_common_set_inquiry_string(fsg_opts->common, fsg_config.vendor_name,
fsg_config.product_name);
/* finally register the configuration */
status = usb_add_config(cdev, &nokia_config_500ma_driver,
nokia_bind_config);
if (status < 0)
goto err_msg_luns;
status = usb_add_config(cdev, &nokia_config_100ma_driver,
nokia_bind_config);
if (status < 0)
goto err_put_cfg1;
usb_composite_overwrite_options(cdev, &coverwrite);
dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
return 0;
err_put_cfg1:
usb_put_function(f_acm_cfg1);
if (!IS_ERR_OR_NULL(f_obex1_cfg1))
usb_put_function(f_obex1_cfg1);
if (!IS_ERR_OR_NULL(f_obex2_cfg1))
usb_put_function(f_obex2_cfg1);
if (!IS_ERR_OR_NULL(f_phonet_cfg1))
usb_put_function(f_phonet_cfg1);
usb_put_function(f_ecm_cfg1);
err_msg_luns:
fsg_common_remove_luns(fsg_opts->common);
err_msg_buf:
fsg_common_free_buffers(fsg_opts->common);
err_msg_inst:
usb_put_function_instance(fi_msg);
err_ecm_inst:
usb_put_function_instance(fi_ecm);
err_acm_inst:
usb_put_function_instance(fi_acm);
err_obex2_inst:
if (!IS_ERR(fi_obex2))
usb_put_function_instance(fi_obex2);
if (!IS_ERR(fi_obex1))
usb_put_function_instance(fi_obex1);
if (!IS_ERR(fi_phonet))
usb_put_function_instance(fi_phonet);
err_usb:
return status;
}
static int nokia_unbind(struct usb_composite_dev *cdev)
{
if (!IS_ERR_OR_NULL(f_obex1_cfg2))
usb_put_function(f_obex1_cfg2);
if (!IS_ERR_OR_NULL(f_obex2_cfg2))
usb_put_function(f_obex2_cfg2);
if (!IS_ERR_OR_NULL(f_obex1_cfg1))
usb_put_function(f_obex1_cfg1);
if (!IS_ERR_OR_NULL(f_obex2_cfg1))
usb_put_function(f_obex2_cfg1);
if (!IS_ERR_OR_NULL(f_phonet_cfg1))
usb_put_function(f_phonet_cfg1);
if (!IS_ERR_OR_NULL(f_phonet_cfg2))
usb_put_function(f_phonet_cfg2);
usb_put_function(f_acm_cfg1);
usb_put_function(f_acm_cfg2);
usb_put_function(f_ecm_cfg1);
usb_put_function(f_ecm_cfg2);
usb_put_function(f_msg_cfg1);
usb_put_function(f_msg_cfg2);
usb_put_function_instance(fi_msg);
usb_put_function_instance(fi_ecm);
if (!IS_ERR(fi_obex2))
usb_put_function_instance(fi_obex2);
if (!IS_ERR(fi_obex1))
usb_put_function_instance(fi_obex1);
if (!IS_ERR(fi_phonet))
usb_put_function_instance(fi_phonet);
usb_put_function_instance(fi_acm);
return 0;
}
static struct usb_composite_driver nokia_driver = {
.name = "g_nokia",
.dev = &device_desc,
.strings = dev_strings,
.max_speed = USB_SPEED_HIGH,
.bind = nokia_bind,
.unbind = nokia_unbind,
};
module_usb_composite_driver(nokia_driver);
|
