1 /*
2 * Copyright (c) 2019 - 2023, Nordic Semiconductor ASA
3 * All rights reserved.
4 *
5 * SPDX-License-Identifier: BSD-3-Clause
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice, this
11 * list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the copyright holder nor the names of its
18 * contributors may be used to endorse or promote products derived from this
19 * software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <nrfx.h>
35
36 #if NRFX_CHECK(NRFX_USBREG_ENABLED)
37
38 #include <nrfx_usbreg.h>
39
40 static nrfx_usbreg_event_handler_t m_usbevt_handler;
41
nrfx_usbreg_handler_get(void)42 nrfx_usbreg_event_handler_t nrfx_usbreg_handler_get(void)
43 {
44 return m_usbevt_handler;
45 }
46
nrfx_usbreg_init(nrfx_usbreg_config_t const * p_config)47 void nrfx_usbreg_init(nrfx_usbreg_config_t const * p_config)
48 {
49 NRFX_ASSERT(p_config != NULL);
50 NRFX_ASSERT(p_config->handler != NULL);
51
52 nrfx_usbreg_uninit();
53 m_usbevt_handler = p_config->handler;
54 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBDETECTED);
55 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBPWRRDY);
56 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBREMOVED);
57
58 NRFX_IRQ_PRIORITY_SET(nrfx_get_irq_number(NRF_USBREGULATOR), p_config->irq_priority);
59 NRFX_IRQ_ENABLE(nrfx_get_irq_number(NRF_USBREGULATOR));
60 }
61
nrfx_usbreg_enable(void)62 void nrfx_usbreg_enable(void)
63 {
64 nrf_usbreg_int_enable(NRF_USBREGULATOR, NRF_USBREG_INT_USBDETECTED |
65 NRF_USBREG_INT_USBREMOVED |
66 NRF_USBREG_INT_USBPWRRDY);
67 }
68
nrfx_usbreg_disable(void)69 void nrfx_usbreg_disable(void)
70 {
71 nrf_usbreg_int_disable(NRF_USBREGULATOR, NRF_USBREG_INT_USBDETECTED |
72 NRF_USBREG_INT_USBREMOVED |
73 NRF_USBREG_INT_USBPWRRDY);
74 }
75
nrfx_usbreg_uninit(void)76 void nrfx_usbreg_uninit(void)
77 {
78 nrfx_usbreg_disable();
79 NRFX_IRQ_DISABLE(nrfx_get_irq_number(NRF_USBREGULATOR));
80 m_usbevt_handler = NULL;
81 }
82
nrfx_usbreg_irq_handler(void)83 void nrfx_usbreg_irq_handler(void)
84 {
85 if (nrf_usbreg_event_check(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBDETECTED))
86 {
87 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBDETECTED);
88 m_usbevt_handler(NRFX_USBREG_EVT_DETECTED);
89 }
90 if (nrf_usbreg_event_check(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBREMOVED))
91 {
92 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBREMOVED);
93 m_usbevt_handler(NRFX_USBREG_EVT_REMOVED);
94 }
95 if (nrf_usbreg_event_check(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBPWRRDY))
96 {
97 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBPWRRDY);
98 m_usbevt_handler(NRFX_USBREG_EVT_READY);
99 }
100 }
101
102 #endif // NRFX_CHECK(NRFX_USBREG_ENABLED)
103
