Blame view
common/dfu.c
2.43 KB
83d290c56
|
1 |
// SPDX-License-Identifier: GPL-2.0+ |
05341a876
|
2 3 4 5 6 7 8 9 10 |
/* * dfu.c -- dfu command * * Copyright (C) 2015 * Lukasz Majewski <l.majewski@majess.pl> * * Copyright (C) 2012 Samsung Electronics * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com> * Lukasz Majewski <l.majewski@samsung.com> |
05341a876
|
11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
*/ #include <common.h> #include <watchdog.h> #include <dfu.h> #include <console.h> #include <g_dnl.h> #include <usb.h> #include <net.h> int run_usb_dnl_gadget(int usbctrl_index, char *usb_dnl_gadget) { bool dfu_reset = false; int ret, i = 0; |
a06955ae1
|
25 |
ret = usb_gadget_initialize(usbctrl_index); |
dbdc2744e
|
26 |
if (ret) { |
a06955ae1
|
27 28 |
pr_err("usb_gadget_initialize failed "); |
dbdc2744e
|
29 30 |
return CMD_RET_FAILURE; } |
05341a876
|
31 |
g_dnl_clear_detach(); |
54a708ca0
|
32 33 |
ret = g_dnl_register(usb_dnl_gadget); if (ret) { |
9b643e312
|
34 |
pr_err("g_dnl_register failed"); |
54a708ca0
|
35 36 |
return CMD_RET_FAILURE; } |
98a8f445f
|
37 38 39 |
#ifdef CONFIG_DFU_TIMEOUT unsigned long start_time = get_timer(0); #endif |
05341a876
|
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 |
while (1) { if (g_dnl_detach()) { /* * Check if USB bus reset is performed after detach, * which indicates that -R switch has been passed to * dfu-util. In this case reboot the device */ if (dfu_usb_get_reset()) { dfu_reset = true; goto exit; } /* * This extra number of usb_gadget_handle_interrupts() * calls is necessary to assure correct transmission * completion with dfu-util */ if (++i == 10000) goto exit; } if (ctrlc()) goto exit; if (dfu_get_defer_flush()) { /* * Call to usb_gadget_handle_interrupts() is necessary * to act on ZLP OUT transaction from HOST PC after * transmitting the whole file. * * If this ZLP OUT packet is NAK'ed, the HOST libusb * function fails after timeout (by default it is set to * 5 seconds). In such situation the dfu-util program * exits with error message. */ usb_gadget_handle_interrupts(usbctrl_index); ret = dfu_flush(dfu_get_defer_flush(), NULL, 0, 0); dfu_set_defer_flush(NULL); if (ret) { |
9b643e312
|
79 |
pr_err("Deferred dfu_flush() failed!"); |
05341a876
|
80 81 82 |
goto exit; } } |
98a8f445f
|
83 84 85 86 87 88 89 90 91 92 93 94 95 |
#ifdef CONFIG_DFU_TIMEOUT unsigned long wait_time = dfu_get_timeout(); if (wait_time) { unsigned long current_time = get_timer(start_time); if (current_time > wait_time) { debug("Inactivity timeout, abort DFU "); goto exit; } } #endif |
05341a876
|
96 97 98 99 100 |
WATCHDOG_RESET(); usb_gadget_handle_interrupts(usbctrl_index); } exit: g_dnl_unregister(); |
a06955ae1
|
101 |
usb_gadget_release(usbctrl_index); |
05341a876
|
102 103 |
if (dfu_reset) |
66928afb6
|
104 |
do_reset(NULL, 0, 0, NULL); |
05341a876
|
105 106 107 108 109 |
g_dnl_clear_detach(); return ret; } |