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