--- /dev/null
+/*
+ * 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
+ *
+ * This software is distributed under the terms of the GNU General
+ * Public License ("GPL") as published by the Free Software Foundation,
+ * version 2 of that License.
+ */
+
+#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 "gadget_chips.h"
+
+/* Defines */
+
+#define NOKIA_VERSION_NUM 0x0211
+#define NOKIA_LONG_NAME "N900 (PC-Suite Mode)"
+
+USB_GADGET_COMPOSITE_OPTIONS();
+
+USB_ETHERNET_MODULE_PARAMETERS();
+
+#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 product_nokia[] = NOKIA_LONG_NAME;
+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 = __constant_cpu_to_le16(0x0200),
+ .bDeviceClass = USB_CLASS_COMM,
+ .idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID),
+ .idProduct = __constant_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_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 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;
+ 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;
+ }
+
+ 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;
+ }
+ 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;
+ } 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;
+ }
+
+ return status;
+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_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;
+ 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_supports_altsettings(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;
+ }
+
+ /* finally register the configuration */
+ status = usb_add_config(cdev, &nokia_config_500ma_driver,
+ nokia_bind_config);
+ if (status < 0)
+ goto err_ecm_inst;
+
+ 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_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_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);
Code Review / kvmfornfv.git / blobdiff