USB: gadget: introduce g_nokia gadget driver
g_nokia is the gadget driver implementing WMCDC Wireless Handset Control Model for the N900 device. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>hifive-unleashed-5.1
Felipe Balbi
Greg Kroah-Hartman
parent
9c9a7dbf9a
commit
f358f5b40a
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@ -812,6 +812,16 @@ config USB_CDC_COMPOSITE
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Say "y" to link the driver statically, or "m" to build a
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dynamically linked module.
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config USB_G_NOKIA
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tristate "Nokia composite gadget"
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depends on PHONET
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help
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The Nokia composite gadget provides support for acm, obex
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and phonet in only one composite gadget driver.
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It's only really useful for N900 hardware. If you're building
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a kernel for N900, say Y or M here. If unsure, say N.
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config USB_G_MULTI
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tristate "Multifunction Composite Gadget (EXPERIMENTAL)"
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depends on BLOCK && NET
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@ -43,6 +43,7 @@ g_mass_storage-objs := mass_storage.o
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g_printer-objs := printer.o
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g_cdc-objs := cdc2.o
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g_multi-objs := multi.o
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g_nokia-objs := nokia.o
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obj-$(CONFIG_USB_ZERO) += g_zero.o
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obj-$(CONFIG_USB_AUDIO) += g_audio.o
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@ -55,4 +56,5 @@ obj-$(CONFIG_USB_G_PRINTER) += g_printer.o
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obj-$(CONFIG_USB_MIDI_GADGET) += g_midi.o
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obj-$(CONFIG_USB_CDC_COMPOSITE) += g_cdc.o
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obj-$(CONFIG_USB_G_MULTI) += g_multi.o
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obj-$(CONFIG_USB_G_NOKIA) += g_nokia.o
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@ -0,0 +1,259 @@
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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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* 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/utsname.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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#include "composite.c"
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#include "usbstring.c"
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#include "config.c"
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#include "epautoconf.c"
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#include "u_serial.c"
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#include "f_acm.c"
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#include "f_ecm.c"
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#include "f_obex.c"
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#include "f_serial.c"
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#include "f_phonet.c"
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#include "u_ether.c"
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/*-------------------------------------------------------------------------*/
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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_MANUFACTURER_IDX 0
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#define STRING_PRODUCT_IDX 1
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#define STRING_DESCRIPTION_IDX 2
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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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[STRING_MANUFACTURER_IDX].s = manufacturer_nokia,
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[STRING_PRODUCT_IDX].s = NOKIA_LONG_NAME,
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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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/* .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 u8 hostaddr[ETH_ALEN];
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static int __init nokia_bind_config(struct usb_configuration *c)
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{
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int status = 0;
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status = phonet_bind_config(c);
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if (status)
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printk(KERN_DEBUG "could not bind phonet config\n");
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status = obex_bind_config(c, 0);
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if (status)
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printk(KERN_DEBUG "could not bind obex config %d\n", 0);
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status = obex_bind_config(c, 1);
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if (status)
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printk(KERN_DEBUG "could not bind obex config %d\n", 0);
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status = acm_bind_config(c, 2);
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if (status)
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printk(KERN_DEBUG "could not bind acm config\n");
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status = ecm_bind_config(c, hostaddr);
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if (status)
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printk(KERN_DEBUG "could not bind ecm config\n");
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return status;
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}
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static struct usb_configuration nokia_config_500ma_driver = {
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.label = "Bus Powered",
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.bind = nokia_bind_config,
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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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.bMaxPower = 250, /* 500mA */
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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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.bind = nokia_bind_config,
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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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.bMaxPower = 50, /* 100 mA */
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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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int gcnum;
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struct usb_gadget *gadget = cdev->gadget;
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int status;
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status = gphonet_setup(cdev->gadget);
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if (status < 0)
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goto err_phonet;
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status = gserial_setup(cdev->gadget, 3);
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if (status < 0)
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goto err_serial;
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status = gether_setup(cdev->gadget, hostaddr);
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if (status < 0)
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goto err_ether;
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status = usb_string_id(cdev);
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if (status < 0)
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goto err_usb;
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strings_dev[STRING_MANUFACTURER_IDX].id = status;
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device_desc.iManufacturer = status;
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status = usb_string_id(cdev);
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if (status < 0)
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goto err_usb;
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strings_dev[STRING_PRODUCT_IDX].id = status;
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device_desc.iProduct = status;
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/* config description */
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status = usb_string_id(cdev);
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if (status < 0)
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goto err_usb;
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strings_dev[STRING_DESCRIPTION_IDX].id = status;
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nokia_config_500ma_driver.iConfiguration = status;
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nokia_config_100ma_driver.iConfiguration = status;
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/* set up other descriptors */
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gcnum = usb_gadget_controller_number(gadget);
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if (gcnum >= 0)
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device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
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else {
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/* this should only work with hw that supports altsettings
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* and several endpoints, anything else, panic.
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*/
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pr_err("nokia_bind: controller '%s' not recognized\n",
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gadget->name);
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goto err_usb;
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}
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/* finaly register the configuration */
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status = usb_add_config(cdev, &nokia_config_500ma_driver);
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if (status < 0)
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goto err_usb;
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status = usb_add_config(cdev, &nokia_config_100ma_driver);
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if (status < 0)
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goto err_usb;
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dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
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return 0;
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err_usb:
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gether_cleanup();
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err_ether:
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gserial_cleanup();
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err_serial:
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gphonet_cleanup();
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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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gphonet_cleanup();
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gserial_cleanup();
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gether_cleanup();
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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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.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_register(&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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