Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Michal Nazarewicz | 765 | 42.48% | 6 | 19.35% |
Andrzej Pietrasiewicz | 701 | 38.92% | 7 | 22.58% |
Sebastian Andrzej Siewior | 217 | 12.05% | 7 | 22.58% |
Li Jun | 93 | 5.16% | 1 | 3.23% |
Tatyana Brokhman | 5 | 0.28% | 1 | 3.23% |
Wei Yongjun | 4 | 0.22% | 1 | 3.23% |
Uwe Kleine-König | 4 | 0.22% | 1 | 3.23% |
Chen Gang S | 4 | 0.22% | 1 | 3.23% |
Greg Kroah-Hartman | 3 | 0.17% | 3 | 9.68% |
Arnd Bergmann | 3 | 0.17% | 1 | 3.23% |
Tobias Klauser | 1 | 0.06% | 1 | 3.23% |
Igor Kotrasinski | 1 | 0.06% | 1 | 3.23% |
Total | 1801 | 31 |
// SPDX-License-Identifier: GPL-2.0+ /* * 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) */ #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 = DYNAMIC */ .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[2]; 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 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; } 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; } 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 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; } 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; } 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_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; if (gadget_is_otg(gadget) && !otg_desc[0]) { struct usb_descriptor_header *usb_desc; usb_desc = usb_otg_descriptor_alloc(gadget); if (!usb_desc) goto fail_string_ids; usb_otg_descriptor_init(gadget, usb_desc); otg_desc[0] = usb_desc; otg_desc[1] = NULL; } /* register configurations */ status = rndis_config_register(cdev); if (unlikely(status < 0)) goto fail_otg_desc; status = cdc_config_register(cdev); if (unlikely(status < 0)) goto fail_otg_desc; usb_composite_overwrite_options(cdev, &coverwrite); /* we're done */ dev_info(&gadget->dev, DRIVER_DESC "\n"); return 0; /* error recovery */ fail_otg_desc: kfree(otg_desc[0]); otg_desc[0] = NULL; fail_string_ids: fsg_common_remove_luns(fsg_opts->common); fail_set_cdev: 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 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 kfree(otg_desc[0]); otg_desc[0] = NULL; 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, .bind = multi_bind, .unbind = multi_unbind, .needs_serial = 1, }; module_usb_composite_driver(multi_driver);
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with Cregit http://github.com/cregit/cregit
Version 2.0-RC1