| usb_generic.c (302408) | usb_generic.c (305733) |
|---|---|
| 1/* $FreeBSD: stable/11/sys/dev/usb/usb_generic.c 277417 2015-01-20 11:43:16Z hselasky $ */ | 1/* $FreeBSD: stable/11/sys/dev/usb/usb_generic.c 305733 2016-09-12 10:14:30Z hselasky $ */ |
| 2/*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. --- 699 unchanged lines hidden (view full) --- 709 error = copyout(cdesc, ugd->ugd_data, len); 710 711 if (free_data) 712 usbd_free_config_desc(udev, cdesc); 713 714 return (error); 715} 716 | 2/*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. --- 699 unchanged lines hidden (view full) --- 709 error = copyout(cdesc, ugd->ugd_data, len); 710 711 if (free_data) 712 usbd_free_config_desc(udev, cdesc); 713 714 return (error); 715} 716 |
| 717/* 718 * This function is called having the enumeration SX locked which 719 * protects the scratch area used. 720 */ | |
| 721static int 722ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 723{ 724 void *ptr; 725 uint16_t size; 726 int error; | 717static int 718ugen_get_sdesc(struct usb_fifo *f, struct usb_gen_descriptor *ugd) 719{ 720 void *ptr; 721 uint16_t size; 722 int error; |
| 723 uint8_t do_unlock; |
|
| 727 | 724 |
| 725 /* Protect scratch area */ 726 do_unlock = usbd_ctrl_lock(f->udev); 727 |
|
| 728 ptr = f->udev->scratch.data; 729 size = sizeof(f->udev->scratch.data); 730 731 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 732 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 733 error = EINVAL; 734 } else { 735 736 if (size > ((uint8_t *)ptr)[0]) { 737 size = ((uint8_t *)ptr)[0]; 738 } 739 if (size > ugd->ugd_maxlen) { 740 size = ugd->ugd_maxlen; 741 } 742 ugd->ugd_actlen = size; 743 ugd->ugd_offset = 0; 744 745 error = copyout(ptr, ugd->ugd_data, size); 746 } | 728 ptr = f->udev->scratch.data; 729 size = sizeof(f->udev->scratch.data); 730 731 if (usbd_req_get_string_desc(f->udev, NULL, ptr, 732 size, ugd->ugd_lang_id, ugd->ugd_string_index)) { 733 error = EINVAL; 734 } else { 735 736 if (size > ((uint8_t *)ptr)[0]) { 737 size = ((uint8_t *)ptr)[0]; 738 } 739 if (size > ugd->ugd_maxlen) { 740 size = ugd->ugd_maxlen; 741 } 742 ugd->ugd_actlen = size; 743 ugd->ugd_offset = 0; 744 745 error = copyout(ptr, ugd->ugd_data, size); 746 } |
| 747 if (do_unlock) 748 usbd_ctrl_unlock(f->udev); 749 |
|
| 747 return (error); 748} 749 750/*------------------------------------------------------------------------* 751 * ugen_get_iface_driver 752 * 753 * This function generates an USB interface description for userland. 754 * --- 1581 unchanged lines hidden --- | 750 return (error); 751} 752 753/*------------------------------------------------------------------------* 754 * ugen_get_iface_driver 755 * 756 * This function generates an USB interface description for userland. 757 * --- 1581 unchanged lines hidden --- |