1 /*
2 * Copyright (c) 2019 - 2025, 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_USBPWRRDY);
55
56 NRFX_IRQ_PRIORITY_SET(nrfx_get_irq_number(NRF_USBREGULATOR), p_config->irq_priority);
57 NRFX_IRQ_ENABLE(nrfx_get_irq_number(NRF_USBREGULATOR));
58 }
59
nrfx_usbreg_enable(void)60 void nrfx_usbreg_enable(void)
61 {
62 nrf_usbreg_int_enable(NRF_USBREGULATOR, NRF_USBREG_INT_USBDETECTED |
63 NRF_USBREG_INT_USBREMOVED |
64 NRF_USBREG_INT_USBPWRRDY);
65 }
66
nrfx_usbreg_disable(void)67 void nrfx_usbreg_disable(void)
68 {
69 nrf_usbreg_int_disable(NRF_USBREGULATOR, NRF_USBREG_INT_USBDETECTED |
70 NRF_USBREG_INT_USBREMOVED |
71 NRF_USBREG_INT_USBPWRRDY);
72 }
73
nrfx_usbreg_uninit(void)74 void nrfx_usbreg_uninit(void)
75 {
76 nrfx_usbreg_disable();
77 NRFX_IRQ_DISABLE(nrfx_get_irq_number(NRF_USBREGULATOR));
78 m_usbevt_handler = NULL;
79 }
80
nrfx_usbreg_init_check(void)81 bool nrfx_usbreg_init_check(void)
82 {
83 return (m_usbevt_handler != NULL);
84 }
85
nrfx_usbreg_irq_handler(void)86 void nrfx_usbreg_irq_handler(void)
87 {
88 if (nrf_usbreg_event_check(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBDETECTED))
89 {
90 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBDETECTED);
91 m_usbevt_handler(NRFX_USBREG_EVT_DETECTED);
92 }
93 if (nrf_usbreg_event_check(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBREMOVED))
94 {
95 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBREMOVED);
96 m_usbevt_handler(NRFX_USBREG_EVT_REMOVED);
97 }
98 if (nrf_usbreg_event_check(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBPWRRDY))
99 {
100 nrf_usbreg_event_clear(NRF_USBREGULATOR, NRF_USBREG_EVENT_USBPWRRDY);
101 m_usbevt_handler(NRFX_USBREG_EVT_READY);
102 }
103 }
104
105 #endif // NRFX_CHECK(NRFX_USBREG_ENABLED)
106
