zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/usb/gadget/multi.c b/ap/os/linux/linux-3.4.x/drivers/usb/gadget/multi.c
new file mode 100644
index 0000000..c37fb33
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/usb/gadget/multi.c
@@ -0,0 +1,362 @@
+/*
+ * multi.c -- Multifunction Composite driver
+ *
+ * Copyright (C) 2008 David Brownell
+ * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2009 Samsung Electronics
+ * Author: Michal Nazarewicz (mina86@mina86.com)
+ *
+ * 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.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/utsname.h>
+#include <linux/module.h>
+
+
+#if defined USB_ETH_RNDIS
+# undef USB_ETH_RNDIS
+#endif
+#ifdef CONFIG_USB_G_MULTI_RNDIS
+# define USB_ETH_RNDIS y
+#endif
+
+
+#define DRIVER_DESC "Multifunction Composite Gadget"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Michal Nazarewicz");
+MODULE_LICENSE("GPL");
+
+
+/***************************** All the files... *****************************/
+
+/*
+ * kbuild is not very cooperative with respect to linking separately
+ * compiled library objects into one module. So for now we won't use
+ * separate compilation ... ensuring init/exit sections work to shrink
+ * the runtime footprint, and giving us at least some parts of what
+ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
+ */
+
+#include "composite.c"
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+
+#include "f_mass_storage.c"
+
+#include "u_serial.c"
+#include "f_acm.c"
+
+#include "f_ecm.c"
+#include "f_subset.c"
+#ifdef USB_ETH_RNDIS
+# include "f_rndis.c"
+# include "rndis.c"
+#endif
+#include "u_ether.c"
+
+
+
+/***************************** Device Descriptor ****************************/
+
+#define MULTI_VENDOR_NUM 0x1d6b /* Linux Foundation */
+#define MULTI_PRODUCT_NUM 0x0104 /* Multifunction Composite Gadget */
+
+
+enum {
+ __MULTI_NO_CONFIG,
+#ifdef CONFIG_USB_G_MULTI_RNDIS
+ MULTI_RNDIS_CONFIG_NUM,
+#endif
+#ifdef CONFIG_USB_G_MULTI_CDC
+ MULTI_CDC_CONFIG_NUM,
+#endif
+};
+
+
+static struct usb_device_descriptor device_desc = {
+ .bLength = sizeof device_desc,
+ .bDescriptorType = USB_DT_DEVICE,
+
+ .bcdUSB = cpu_to_le16(0x0200),
+
+ .bDeviceClass = USB_CLASS_MISC /* 0xEF */,
+ .bDeviceSubClass = 2,
+ .bDeviceProtocol = 1,
+
+ /* Vendor and product id can be overridden by module parameters. */
+ .idVendor = cpu_to_le16(MULTI_VENDOR_NUM),
+ .idProduct = cpu_to_le16(MULTI_PRODUCT_NUM),
+};
+
+
+static const struct usb_descriptor_header *otg_desc[] = {
+ (struct usb_descriptor_header *) &(struct usb_otg_descriptor){
+ .bLength = sizeof(struct usb_otg_descriptor),
+ .bDescriptorType = USB_DT_OTG,
+
+ /*
+ * REVISIT SRP-only hardware is possible, although
+ * it would not be called "OTG" ...
+ */
+ .bmAttributes = USB_OTG_SRP | USB_OTG_HNP,
+ },
+ NULL,
+};
+
+
+enum {
+#ifdef CONFIG_USB_G_MULTI_RNDIS
+ MULTI_STRING_RNDIS_CONFIG_IDX,
+#endif
+#ifdef CONFIG_USB_G_MULTI_CDC
+ MULTI_STRING_CDC_CONFIG_IDX,
+#endif
+};
+
+static struct usb_string strings_dev[] = {
+#ifdef CONFIG_USB_G_MULTI_RNDIS
+ [MULTI_STRING_RNDIS_CONFIG_IDX].s = "Multifunction with RNDIS",
+#endif
+#ifdef CONFIG_USB_G_MULTI_CDC
+ [MULTI_STRING_CDC_CONFIG_IDX].s = "Multifunction with CDC ECM",
+#endif
+ { } /* end of list */
+};
+
+static struct usb_gadget_strings *dev_strings[] = {
+ &(struct usb_gadget_strings){
+ .language = 0x0409, /* en-us */
+ .strings = strings_dev,
+ },
+ NULL,
+};
+
+
+
+
+/****************************** Configurations ******************************/
+
+static struct fsg_module_parameters fsg_mod_data = { .stall = 1 };
+FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
+
+static struct fsg_common fsg_common;
+
+static u8 hostaddr[ETH_ALEN];
+
+
+/********** RNDIS **********/
+
+#ifdef USB_ETH_RNDIS
+
+static __init int rndis_do_config(struct usb_configuration *c)
+{
+ int ret;
+
+ if (gadget_is_otg(c->cdev->gadget)) {
+ c->descriptors = otg_desc;
+ c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ }
+
+ ret = rndis_bind_config(c, hostaddr);
+ if (ret < 0)
+ return ret;
+
+ ret = acm_bind_config(c, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = fsg_bind_config(c->cdev, c, &fsg_common);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rndis_config_register(struct usb_composite_dev *cdev)
+{
+ static struct usb_configuration config = {
+ .bConfigurationValue = MULTI_RNDIS_CONFIG_NUM,
+ .bmAttributes = USB_CONFIG_ATT_SELFPOWER,
+ };
+
+ config.label = strings_dev[MULTI_STRING_RNDIS_CONFIG_IDX].s;
+ config.iConfiguration = strings_dev[MULTI_STRING_RNDIS_CONFIG_IDX].id;
+
+ return usb_add_config(cdev, &config, rndis_do_config);
+}
+
+#else
+
+static int rndis_config_register(struct usb_composite_dev *cdev)
+{
+ return 0;
+}
+
+#endif
+
+
+/********** CDC ECM **********/
+
+#ifdef CONFIG_USB_G_MULTI_CDC
+
+static __init int cdc_do_config(struct usb_configuration *c)
+{
+ int ret;
+
+ if (gadget_is_otg(c->cdev->gadget)) {
+ c->descriptors = otg_desc;
+ c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ }
+
+ ret = ecm_bind_config(c, hostaddr);
+ if (ret < 0)
+ return ret;
+
+ ret = acm_bind_config(c, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = fsg_bind_config(c->cdev, c, &fsg_common);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int cdc_config_register(struct usb_composite_dev *cdev)
+{
+ static struct usb_configuration config = {
+ .bConfigurationValue = MULTI_CDC_CONFIG_NUM,
+ .bmAttributes = USB_CONFIG_ATT_SELFPOWER,
+ };
+
+ config.label = strings_dev[MULTI_STRING_CDC_CONFIG_IDX].s;
+ config.iConfiguration = strings_dev[MULTI_STRING_CDC_CONFIG_IDX].id;
+
+ return usb_add_config(cdev, &config, cdc_do_config);
+}
+
+#else
+
+static int cdc_config_register(struct usb_composite_dev *cdev)
+{
+ return 0;
+}
+
+#endif
+
+
+
+/****************************** Gadget Bind ******************************/
+
+
+static int __ref multi_bind(struct usb_composite_dev *cdev)
+{
+ struct usb_gadget *gadget = cdev->gadget;
+ int status, gcnum;
+
+ if (!can_support_ecm(cdev->gadget)) {
+ dev_err(&gadget->dev, "controller '%s' not usable\n",
+ gadget->name);
+ return -EINVAL;
+ }
+
+ /* set up network link layer */
+ status = gether_setup(cdev->gadget, hostaddr);
+ if (status < 0)
+ return status;
+
+ /* set up serial link layer */
+ status = gserial_setup(cdev->gadget, 1);
+ if (status < 0)
+ goto fail0;
+
+ /* set up mass storage function */
+ {
+ void *retp;
+ retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data);
+ if (IS_ERR(retp)) {
+ status = PTR_ERR(retp);
+ goto fail1;
+ }
+ }
+
+ /* set bcdDevice */
+ gcnum = usb_gadget_controller_number(gadget);
+ if (gcnum >= 0) {
+ device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
+ } else {
+ WARNING(cdev, "controller '%s' not recognized\n", gadget->name);
+ device_desc.bcdDevice = cpu_to_le16(0x0300 | 0x0099);
+ }
+
+ /* allocate string IDs */
+ status = usb_string_ids_tab(cdev, strings_dev);
+ if (unlikely(status < 0))
+ goto fail2;
+
+ /* register configurations */
+ status = rndis_config_register(cdev);
+ if (unlikely(status < 0))
+ goto fail2;
+
+ status = cdc_config_register(cdev);
+ if (unlikely(status < 0))
+ goto fail2;
+
+ /* we're done */
+ dev_info(&gadget->dev, DRIVER_DESC "\n");
+ fsg_common_put(&fsg_common);
+ return 0;
+
+
+ /* error recovery */
+fail2:
+ fsg_common_put(&fsg_common);
+fail1:
+ gserial_cleanup();
+fail0:
+ gether_cleanup();
+ return status;
+}
+
+static int __exit multi_unbind(struct usb_composite_dev *cdev)
+{
+ gserial_cleanup();
+ gether_cleanup();
+ return 0;
+}
+
+
+/****************************** Some noise ******************************/
+
+
+static struct usb_composite_driver multi_driver = {
+ .name = "g_multi",
+ .dev = &device_desc,
+ .strings = dev_strings,
+ .max_speed = USB_SPEED_HIGH,
+ .unbind = __exit_p(multi_unbind),
+ .iProduct = DRIVER_DESC,
+ .needs_serial = 1,
+};
+
+
+static int __init multi_init(void)
+{
+ return usb_composite_probe(&multi_driver, multi_bind);
+}
+module_init(multi_init);
+
+static void __exit multi_exit(void)
+{
+ usb_composite_unregister(&multi_driver);
+}
+module_exit(multi_exit);