1 /*
2 * Copyright (c) 2018 Nordic Semiconductor ASA
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/kernel.h>
8 #include <zephyr/sys/reboot.h>
9 #include <openthread/instance.h>
10 #include <openthread/platform/misc.h>
11
12 #if defined(CONFIG_OPENTHREAD_PLATFORM_BOOTLOADER_MODE_RETENTION)
13
14 #include <zephyr/retention/bootmode.h>
15
16 #elif defined(CONFIG_OPENTHREAD_PLATFORM_BOOTLOADER_MODE_GPIO)
17
18 BUILD_ASSERT(DT_HAS_COMPAT_STATUS_OKAY(openthread_config),
19 "`openthread,config` compatible node not found");
20 BUILD_ASSERT(DT_NODE_HAS_PROP(DT_COMPAT_GET_ANY_STATUS_OKAY(openthread_config), bootloader_gpios),
21 "`bootloader-gpios` property missing from `openthread,config` compatible node");
22
23 #include <zephyr/drivers/gpio.h>
24
25 static const struct gpio_dt_spec bootloader_gpio =
26 GPIO_DT_SPEC_GET(DT_COMPAT_GET_ANY_STATUS_OKAY(openthread_config),
27 bootloader_gpios);
28 #endif
29
30 #include "platform-zephyr.h"
31
otPlatReset(otInstance * aInstance)32 void otPlatReset(otInstance *aInstance)
33 {
34 ARG_UNUSED(aInstance);
35
36 /* This function does nothing on the Posix platform. */
37 sys_reboot(SYS_REBOOT_WARM);
38 }
39
40 #if defined(CONFIG_OPENTHREAD_PLATFORM_BOOTLOADER_MODE)
otPlatResetToBootloader(otInstance * aInstance)41 otError otPlatResetToBootloader(otInstance *aInstance)
42 {
43 OT_UNUSED_VARIABLE(aInstance);
44
45 #if defined(CONFIG_OPENTHREAD_PLATFORM_BOOTLOADER_MODE_RETENTION)
46 if (bootmode_set(BOOT_MODE_TYPE_BOOTLOADER)) {
47 return OT_ERROR_NOT_CAPABLE;
48 }
49 sys_reboot(SYS_REBOOT_WARM);
50
51 #elif defined(CONFIG_OPENTHREAD_PLATFORM_BOOTLOADER_MODE_GPIO)
52 /*
53 * To enable resetting to bootloader by triggering gpio pin,
54 * select `CONFIG_OPENTHREAD_PLATFORM_BOOTLOADER_MODE_GPIO=y`,
55 * and in Devicetree create `openthread` node in `/options/` path with
56 * `compatible = "openthread,config"` property and `bootloader-gpios` property,
57 * which should represent GPIO pin's configuration,
58 * containing controller phandle, pin number and pin flags. e.g:
59 *
60 * options {
61 * openthread {
62 * compatible = "openthread,config";
63 * bootloader-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
64 * };
65 * };
66 *
67 * Note: in below implementation, chosen GPIO pin is configured as output
68 * and initialized to active state (logical value ‘1’).
69 * Configuring pin flags in `bootloader-gpios` allows to choose
70 * if pin should be active in high or in low state.
71 */
72
73 if (!gpio_is_ready_dt(&bootloader_gpio)) {
74 return OT_ERROR_NOT_CAPABLE;
75 }
76 gpio_pin_configure_dt(&bootloader_gpio, GPIO_OUTPUT_ACTIVE);
77
78 #endif
79
80 /*
81 * Return OT_ERROR_NOT_CAPABLE if resetting has been unsuccessful (invalid configuration or
82 * triggering reset had no effect)
83 */
84 return OT_ERROR_NOT_CAPABLE;
85 }
86 #endif /* defined(CONFIG_OPENTHREAD_PLATFORM_BOOTLOADER_MODE) */
87
otPlatGetResetReason(otInstance * aInstance)88 otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
89 {
90 ARG_UNUSED(aInstance);
91
92 return OT_PLAT_RESET_REASON_POWER_ON;
93 }
94
otPlatWakeHost(void)95 void otPlatWakeHost(void)
96 {
97 /* TODO */
98 }
99
otPlatAssertFail(const char * aFilename,int aLineNumber)100 void otPlatAssertFail(const char *aFilename, int aLineNumber)
101 {
102 /*
103 * The code below is used instead of __ASSERT(false) to print the actual assert
104 * location instead of __FILE__:__LINE__, which would point to this function.
105 */
106 __ASSERT_PRINT("OpenThread ASSERT @ %s:%d\n", aFilename, aLineNumber);
107 __ASSERT_POST_ACTION();
108 }
109
