forked from Minki/linux
0189e63ad8
cleanup patch only in preparation for configfs. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
334 lines
8.7 KiB
C
334 lines
8.7 KiB
C
/*
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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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* This software is distributed under the terms of the GNU General
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* Public License ("GPL") as published by the Free Software Foundation,
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* version 2 of that License.
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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 "gadget_chips.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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/*-------------------------------------------------------------------------*/
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/*
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* Kbuild is not very cooperative with respect to linking separately
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* compiled library objects into one module. So for now we won't use
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* separate compilation ... ensuring init/exit sections work to shrink
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* the runtime footprint, and giving us at least some parts of what
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* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
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*/
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#define USBF_ECM_INCLUDED
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#include "f_ecm.c"
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#include "f_phonet.c"
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#include "u_ether.h"
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/*-------------------------------------------------------------------------*/
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USB_GADGET_COMPOSITE_OPTIONS();
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USB_ETHERNET_MODULE_PARAMETERS();
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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 = __constant_cpu_to_le16(0x0200),
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.bDeviceClass = USB_CLASS_COMM,
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.idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID),
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.idProduct = __constant_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 u8 host_mac[ETH_ALEN];
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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 eth_dev *the_dev;
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static struct net_device *phonet_dev;
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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_obex1;
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static struct usb_function_instance *fi_obex2;
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static int __init 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_obex1 = NULL;
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struct usb_function *f_obex2 = NULL;
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int status = 0;
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int obex1_stat = 0;
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int obex2_stat = 0;
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status = phonet_bind_config(c, phonet_dev);
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if (status)
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pr_debug("could not bind phonet config\n");
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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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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 = ecm_bind_config(c, host_mac, the_dev);
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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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if (c == &nokia_config_500ma_driver) {
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f_acm_cfg1 = f_acm;
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f_obex1_cfg1 = f_obex1;
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f_obex2_cfg1 = f_obex2;
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} else {
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f_acm_cfg2 = f_acm;
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f_obex1_cfg2 = f_obex1;
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f_obex2_cfg2 = f_obex2;
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}
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return status;
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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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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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return status;
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}
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static int __init 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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int status;
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phonet_dev = gphonet_setup(cdev->gadget);
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if (IS_ERR(phonet_dev)) {
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status = PTR_ERR(phonet_dev);
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goto err_phonet;
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}
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the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
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qmult);
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if (IS_ERR(the_dev)) {
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status = PTR_ERR(the_dev);
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goto err_ether;
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}
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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_supports_altsettings(gadget))
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goto err_usb;
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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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goto err_obex2_inst;
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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_acm_inst;
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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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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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err_usb:
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gether_cleanup(the_dev);
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err_ether:
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gphonet_cleanup(phonet_dev);
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err_phonet:
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return status;
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}
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static int __exit 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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usb_put_function(f_acm_cfg1);
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usb_put_function(f_acm_cfg2);
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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_obex2))
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usb_put_function_instance(fi_obex2);
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usb_put_function_instance(fi_acm);
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gphonet_cleanup(phonet_dev);
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gether_cleanup(the_dev);
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return 0;
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}
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static __refdata 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 = __exit_p(nokia_unbind),
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};
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static int __init nokia_init(void)
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{
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return usb_composite_probe(&nokia_driver);
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}
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module_init(nokia_init);
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static void __exit nokia_cleanup(void)
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{
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usb_composite_unregister(&nokia_driver);
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}
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module_exit(nokia_cleanup);
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