1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 *
4 * HDF is dual licensed: you can use it either under the terms of
5 * the GPL, or the BSD license, at your option.
6 * See the LICENSE file in the root of this repository for complete details.
7 */
8
9 #include "hdf_reset.h"
10 #include "gpio_if.h"
11 #include "hdf_base.h"
12
13 struct GpioBasedReset {
14 struct HdfReset base;
15 uint8_t resetHoldTime;
16 uint8_t gpioId;
17 uint8_t activeLevel;
18 };
19
ResetNoManagableReset(struct HdfReset * reset)20 int32_t ResetNoManagableReset(struct HdfReset *reset) {
21 (void)reset;
22 return HDF_FAILURE;
23 }
24
ReleaseNoManagableReset(struct HdfReset * reset)25 void ReleaseNoManagableReset(struct HdfReset *reset) {
26 if (reset != NULL) {
27 OsalMemFree(reset);
28 }
29 }
30
ResetGpioBasedReset(struct HdfReset * reset)31 int32_t ResetGpioBasedReset(struct HdfReset *reset) {
32 int ret;
33 struct GpioBasedReset *gpioBasedReset = (struct GpioBasedReset *)reset;
34 if (reset == NULL) {
35 HDF_LOGE("%s:nullptr", __func__);
36 return HDF_FAILURE;
37 }
38 ret = GpioSetDir(gpioBasedReset->gpioId, GPIO_DIR_OUT);
39 if (ret != HDF_SUCCESS) {
40 HDF_LOGE("%s: set dir fail!", __func__);
41 return ret;
42 }
43 ret = GpioWrite(gpioBasedReset->gpioId, gpioBasedReset->activeLevel);
44 if (ret != HDF_SUCCESS) {
45 HDF_LOGE("%s: write active fail! ret=%d", __func__, ret);
46 return ret;
47 }
48 OsalMSleep(gpioBasedReset->resetHoldTime);
49
50 ret = GpioWrite(gpioBasedReset->gpioId, !gpioBasedReset->activeLevel);
51 if (ret != HDF_SUCCESS) {
52 HDF_LOGE("%s: write deactivate fail! ret=%d", __func__, ret);
53 return ret;
54 }
55 return ret;
56 }
57
ReleaseGpioBasedReset(struct HdfReset * reset)58 void ReleaseGpioBasedReset(struct HdfReset *reset) {
59 if (reset != NULL) {
60 OsalMemFree(reset);
61 }
62 }
63
CreateVirtualReset(const struct HdfResetConfig * resetConfig)64 struct HdfReset *CreateVirtualReset(const struct HdfResetConfig *resetConfig) {
65 struct HdfReset *result = NULL;
66 if (resetConfig == NULL) {
67 HDF_LOGE("%s:nullptr", __func__);
68 return NULL;
69 }
70 if (resetConfig->resetType == RESET_TYPE_NOT_MANAGEABLE) {
71 const static struct HdfResetOps noManagableResetOps = {.Reset = ResetNoManagableReset,
72 .Release = ReleaseNoManagableReset};
73 result = (struct HdfReset *)OsalMemCalloc(sizeof(struct HdfReset));
74 result->ops = &noManagableResetOps;
75 } else if (resetConfig->resetType == RESET_TYPE_GPIO) {
76 const static struct HdfResetOps gpioBasedResetOps = {.Reset = ResetGpioBasedReset,
77 .Release = ReleaseGpioBasedReset};
78 struct GpioBasedReset *reset = (struct GpioBasedReset *)OsalMemCalloc(sizeof(struct GpioBasedReset));
79 reset->resetHoldTime = resetConfig->resetHoldTime;
80 reset->gpioId = resetConfig->gpio.gpioId;
81 reset->activeLevel = resetConfig->gpio.activeLevel;
82 reset->base.ops = &gpioBasedResetOps;
83 result = (struct HdfReset *)reset;
84 }
85 return result;
86 }