diff options
Diffstat (limited to 'drivers/usb/gadget/multi.c')
| -rw-r--r-- | drivers/usb/gadget/multi.c | 521 |
1 files changed, 0 insertions, 521 deletions
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c deleted file mode 100644 index 940f6cde8e89..000000000000 --- a/drivers/usb/gadget/multi.c +++ /dev/null @@ -1,521 +0,0 @@ -/* - * 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/module.h> -#include <linux/netdevice.h> - -#include "u_serial.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"); - - -#include "f_mass_storage.h" - -#include "u_ecm.h" -#ifdef USB_ETH_RNDIS -# include "u_rndis.h" -# include "rndis.h" -#endif -#include "u_ether.h" - -USB_GADGET_COMPOSITE_OPTIONS(); - -USB_ETHERNET_MODULE_PARAMETERS(); - -/***************************** 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 { - MULTI_STRING_RNDIS_CONFIG_IDX = USB_GADGET_FIRST_AVAIL_IDX, - MULTI_STRING_CDC_CONFIG_IDX, -}; - -static struct usb_string strings_dev[] = { - [USB_GADGET_MANUFACTURER_IDX].s = "", - [USB_GADGET_PRODUCT_IDX].s = DRIVER_DESC, - [USB_GADGET_SERIAL_IDX].s = "", - [MULTI_STRING_RNDIS_CONFIG_IDX].s = "Multifunction with RNDIS", - [MULTI_STRING_CDC_CONFIG_IDX].s = "Multifunction with CDC ECM", - { } /* 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 }; -#ifdef CONFIG_USB_GADGET_DEBUG_FILES - -static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; - -#else - -/* - * Number of buffers we will use. - * 2 is usually enough for good buffering pipeline - */ -#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS - -#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ - -FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); - -static struct usb_function_instance *fi_acm; -static struct usb_function_instance *fi_msg; - -/********** RNDIS **********/ - -#ifdef USB_ETH_RNDIS -static struct usb_function_instance *fi_rndis; -static struct usb_function *f_acm_rndis; -static struct usb_function *f_rndis; -static struct usb_function *f_msg_rndis; - -static __init int rndis_do_config(struct usb_configuration *c) -{ - struct fsg_opts *fsg_opts; - int ret; - - if (gadget_is_otg(c->cdev->gadget)) { - c->descriptors = otg_desc; - c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; - } - - f_rndis = usb_get_function(fi_rndis); - if (IS_ERR(f_rndis)) - return PTR_ERR(f_rndis); - - ret = usb_add_function(c, f_rndis); - if (ret < 0) - goto err_func_rndis; - - f_acm_rndis = usb_get_function(fi_acm); - if (IS_ERR(f_acm_rndis)) { - ret = PTR_ERR(f_acm_rndis); - goto err_func_acm; - } - - ret = usb_add_function(c, f_acm_rndis); - if (ret) - goto err_conf; - - f_msg_rndis = usb_get_function(fi_msg); - if (IS_ERR(f_msg_rndis)) { - ret = PTR_ERR(f_msg_rndis); - goto err_fsg; - } - - fsg_opts = fsg_opts_from_func_inst(fi_msg); - ret = fsg_common_run_thread(fsg_opts->common); - if (ret) - goto err_run; - - ret = usb_add_function(c, f_msg_rndis); - if (ret) - goto err_run; - - return 0; -err_run: - usb_put_function(f_msg_rndis); -err_fsg: - usb_remove_function(c, f_acm_rndis); -err_conf: - usb_put_function(f_acm_rndis); -err_func_acm: - usb_remove_function(c, f_rndis); -err_func_rndis: - usb_put_function(f_rndis); - return ret; -} - -static __ref 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 __ref int rndis_config_register(struct usb_composite_dev *cdev) -{ - return 0; -} - -#endif - - -/********** CDC ECM **********/ - -#ifdef CONFIG_USB_G_MULTI_CDC -static struct usb_function_instance *fi_ecm; -static struct usb_function *f_acm_multi; -static struct usb_function *f_ecm; -static struct usb_function *f_msg_multi; - -static __init int cdc_do_config(struct usb_configuration *c) -{ - struct fsg_opts *fsg_opts; - int ret; - - if (gadget_is_otg(c->cdev->gadget)) { - c->descriptors = otg_desc; - c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; - } - - f_ecm = usb_get_function(fi_ecm); - if (IS_ERR(f_ecm)) - return PTR_ERR(f_ecm); - - ret = usb_add_function(c, f_ecm); - if (ret < 0) - goto err_func_ecm; - - /* implicit port_num is zero */ - f_acm_multi = usb_get_function(fi_acm); - if (IS_ERR(f_acm_multi)) { - ret = PTR_ERR(f_acm_multi); - goto err_func_acm; - } - - ret = usb_add_function(c, f_acm_multi); - if (ret) - goto err_conf; - - f_msg_multi = usb_get_function(fi_msg); - if (IS_ERR(f_msg_multi)) { - ret = PTR_ERR(f_msg_multi); - goto err_fsg; - } - - fsg_opts = fsg_opts_from_func_inst(fi_msg); - ret = fsg_common_run_thread(fsg_opts->common); - if (ret) - goto err_run; - - ret = usb_add_function(c, f_msg_multi); - if (ret) - goto err_run; - - return 0; -err_run: - usb_put_function(f_msg_multi); -err_fsg: - usb_remove_function(c, f_acm_multi); -err_conf: - usb_put_function(f_acm_multi); -err_func_acm: - usb_remove_function(c, f_ecm); -err_func_ecm: - usb_put_function(f_ecm); - return ret; -} - -static __ref 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 __ref 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; -#ifdef CONFIG_USB_G_MULTI_CDC - struct f_ecm_opts *ecm_opts; -#endif -#ifdef USB_ETH_RNDIS - struct f_rndis_opts *rndis_opts; -#endif - struct fsg_opts *fsg_opts; - struct fsg_config config; - int status; - - if (!can_support_ecm(cdev->gadget)) { - dev_err(&gadget->dev, "controller '%s' not usable\n", - gadget->name); - return -EINVAL; - } - -#ifdef CONFIG_USB_G_MULTI_CDC - fi_ecm = usb_get_function_instance("ecm"); - if (IS_ERR(fi_ecm)) - return PTR_ERR(fi_ecm); - - ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst); - - gether_set_qmult(ecm_opts->net, qmult); - if (!gether_set_host_addr(ecm_opts->net, host_addr)) - pr_info("using host ethernet address: %s", host_addr); - if (!gether_set_dev_addr(ecm_opts->net, dev_addr)) - pr_info("using self ethernet address: %s", dev_addr); -#endif - -#ifdef USB_ETH_RNDIS - fi_rndis = usb_get_function_instance("rndis"); - if (IS_ERR(fi_rndis)) { - status = PTR_ERR(fi_rndis); - goto fail; - } - - rndis_opts = container_of(fi_rndis, struct f_rndis_opts, func_inst); - - gether_set_qmult(rndis_opts->net, qmult); - if (!gether_set_host_addr(rndis_opts->net, host_addr)) - pr_info("using host ethernet address: %s", host_addr); - if (!gether_set_dev_addr(rndis_opts->net, dev_addr)) - pr_info("using self ethernet address: %s", dev_addr); -#endif - -#if (defined CONFIG_USB_G_MULTI_CDC && defined USB_ETH_RNDIS) - /* - * If both ecm and rndis are selected then: - * 1) rndis borrows the net interface from ecm - * 2) since the interface is shared it must not be bound - * twice - in ecm's _and_ rndis' binds, so do it here. - */ - gether_set_gadget(ecm_opts->net, cdev->gadget); - status = gether_register_netdev(ecm_opts->net); - if (status) - goto fail0; - - rndis_borrow_net(fi_rndis, ecm_opts->net); - ecm_opts->bound = true; -#endif - - /* set up serial link layer */ - fi_acm = usb_get_function_instance("acm"); - if (IS_ERR(fi_acm)) { - status = PTR_ERR(fi_acm); - goto fail0; - } - - /* set up mass storage function */ - fi_msg = usb_get_function_instance("mass_storage"); - if (IS_ERR(fi_msg)) { - status = PTR_ERR(fi_msg); - goto fail1; - } - fsg_config_from_params(&config, &fsg_mod_data, fsg_num_buffers); - fsg_opts = fsg_opts_from_func_inst(fi_msg); - - fsg_opts->no_configfs = true; - status = fsg_common_set_num_buffers(fsg_opts->common, fsg_num_buffers); - if (status) - goto fail2; - - status = fsg_common_set_nluns(fsg_opts->common, config.nluns); - if (status) - goto fail_set_nluns; - - status = fsg_common_set_cdev(fsg_opts->common, cdev, config.can_stall); - if (status) - goto fail_set_cdev; - - fsg_common_set_sysfs(fsg_opts->common, true); - status = fsg_common_create_luns(fsg_opts->common, &config); - if (status) - goto fail_set_cdev; - - fsg_common_set_inquiry_string(fsg_opts->common, config.vendor_name, - config.product_name); - - /* allocate string IDs */ - status = usb_string_ids_tab(cdev, strings_dev); - if (unlikely(status < 0)) - goto fail_string_ids; - device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; - - /* register configurations */ - status = rndis_config_register(cdev); - if (unlikely(status < 0)) - goto fail_string_ids; - - status = cdc_config_register(cdev); - if (unlikely(status < 0)) - goto fail_string_ids; - usb_composite_overwrite_options(cdev, &coverwrite); - - /* we're done */ - dev_info(&gadget->dev, DRIVER_DESC "\n"); - return 0; - - - /* error recovery */ -fail_string_ids: - fsg_common_remove_luns(fsg_opts->common); -fail_set_cdev: - fsg_common_free_luns(fsg_opts->common); -fail_set_nluns: - fsg_common_free_buffers(fsg_opts->common); -fail2: - usb_put_function_instance(fi_msg); -fail1: - usb_put_function_instance(fi_acm); -fail0: -#ifdef USB_ETH_RNDIS - usb_put_function_instance(fi_rndis); -fail: -#endif -#ifdef CONFIG_USB_G_MULTI_CDC - usb_put_function_instance(fi_ecm); -#endif - return status; -} - -static int __exit multi_unbind(struct usb_composite_dev *cdev) -{ -#ifdef CONFIG_USB_G_MULTI_CDC - usb_put_function(f_msg_multi); -#endif -#ifdef USB_ETH_RNDIS - usb_put_function(f_msg_rndis); -#endif - usb_put_function_instance(fi_msg); -#ifdef CONFIG_USB_G_MULTI_CDC - usb_put_function(f_acm_multi); -#endif -#ifdef USB_ETH_RNDIS - usb_put_function(f_acm_rndis); -#endif - usb_put_function_instance(fi_acm); -#ifdef USB_ETH_RNDIS - usb_put_function(f_rndis); - usb_put_function_instance(fi_rndis); -#endif -#ifdef CONFIG_USB_G_MULTI_CDC - usb_put_function(f_ecm); - usb_put_function_instance(fi_ecm); -#endif - return 0; -} - - -/****************************** Some noise ******************************/ - - -static __refdata struct usb_composite_driver multi_driver = { - .name = "g_multi", - .dev = &device_desc, - .strings = dev_strings, - .max_speed = USB_SPEED_HIGH, - .bind = multi_bind, - .unbind = __exit_p(multi_unbind), - .needs_serial = 1, -}; - - -static int __init multi_init(void) -{ - return usb_composite_probe(&multi_driver); -} -module_init(multi_init); - -static void __exit multi_exit(void) -{ - usb_composite_unregister(&multi_driver); -} -module_exit(multi_exit); |
