1 /******************************************************************************
2  *
3  * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by
4  * Analog Devices, Inc.),
5  * Copyright (C) 2023-2024 Analog Devices, Inc.
6  *
7  * Licensed under the Apache License, Version 2.0 (the "License");
8  * you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at
10  *
11  *     http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing, software
14  * distributed under the License is distributed on an "AS IS" BASIS,
15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  *
19  ******************************************************************************/
20 
21 /* **** Includes **** */
22 #include <stddef.h>
23 #include "mxc_sys.h"
24 #include "mxc_device.h"
25 #include "mxc_assert.h"
26 #include "gpio.h"
27 #include "gpio_reva.h"
28 #include "gpio_common.h"
29 
30 /* **** Definitions **** */
31 
32 /* **** Globals **** */
33 
34 /* **** Functions **** */
MXC_GPIO_Init(uint32_t portmask)35 int MXC_GPIO_Init(uint32_t portmask)
36 {
37     int retval = MXC_GPIO_Common_Init(portmask);
38 
39     if (portmask & 0x1) {
40         MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_GPIO0);
41     }
42 
43     return MXC_GPIO_Common_Init(portmask) + retval;
44 }
45 
MXC_GPIO_Shutdown(uint32_t portmask)46 int MXC_GPIO_Shutdown(uint32_t portmask)
47 {
48     if (portmask & 0x1) {
49         MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_GPIO0);
50     }
51 
52     return E_NO_ERROR;
53 }
54 
MXC_GPIO_Reset(uint32_t portmask)55 int MXC_GPIO_Reset(uint32_t portmask)
56 {
57     if (portmask & 0x1) {
58         MXC_SYS_Reset_Periph(MXC_SYS_RESET0_GPIO0);
59     }
60 
61     return E_NO_ERROR;
62 }
63 
MXC_GPIO_Config(const mxc_gpio_cfg_t * cfg)64 int MXC_GPIO_Config(const mxc_gpio_cfg_t *cfg)
65 {
66     int port, error;
67     mxc_gpio_regs_t *gpio = cfg->port;
68 
69     port = MXC_GPIO_GET_IDX(cfg->port);
70     MXC_GPIO_Init(1 << port);
71 
72     // Configure the vssel
73     error = MXC_GPIO_SetVSSEL(gpio, cfg->vssel, cfg->mask);
74     if (error != E_NO_ERROR) {
75         return error;
76     }
77 
78     // Configure alternate function
79     error = MXC_GPIO_RevA_SetAF((mxc_gpio_reva_regs_t *)gpio, cfg->func, cfg->mask);
80 
81     if (error != E_NO_ERROR) {
82         return error;
83     }
84 
85     // Configure the pad
86     switch (cfg->pad) {
87     case MXC_GPIO_PAD_NONE:
88         gpio->padctrl0 &= ~cfg->mask;
89         break;
90 
91     case MXC_GPIO_PAD_PULL_UP:
92         gpio->padctrl0 |= cfg->mask;
93         gpio->ps |= cfg->mask;
94         break;
95 
96     case MXC_GPIO_PAD_PULL_DOWN:
97         gpio->padctrl0 |= cfg->mask;
98         gpio->ps &= ~cfg->mask;
99         break;
100 
101     default:
102         return E_BAD_PARAM;
103     }
104 
105     // Configure the drive strength
106     if (cfg->func == MXC_GPIO_FUNC_IN) {
107         return E_NO_ERROR;
108     } else {
109         return MXC_GPIO_SetDriveStrength(gpio, cfg->drvstr, cfg->mask);
110     }
111 }
112 
113 /* ************************************************************************** */
MXC_GPIO_InGet(mxc_gpio_regs_t * port,uint32_t mask)114 uint32_t MXC_GPIO_InGet(mxc_gpio_regs_t *port, uint32_t mask)
115 {
116     return MXC_GPIO_RevA_InGet((mxc_gpio_reva_regs_t *)port, mask);
117 }
118 
119 /* ************************************************************************** */
MXC_GPIO_OutSet(mxc_gpio_regs_t * port,uint32_t mask)120 void MXC_GPIO_OutSet(mxc_gpio_regs_t *port, uint32_t mask)
121 {
122     MXC_GPIO_RevA_OutSet((mxc_gpio_reva_regs_t *)port, mask);
123 }
124 
125 /* ************************************************************************** */
MXC_GPIO_OutClr(mxc_gpio_regs_t * port,uint32_t mask)126 void MXC_GPIO_OutClr(mxc_gpio_regs_t *port, uint32_t mask)
127 {
128     MXC_GPIO_RevA_OutClr((mxc_gpio_reva_regs_t *)port, mask);
129 }
130 
131 /* ************************************************************************** */
MXC_GPIO_OutGet(mxc_gpio_regs_t * port,uint32_t mask)132 uint32_t MXC_GPIO_OutGet(mxc_gpio_regs_t *port, uint32_t mask)
133 {
134     return MXC_GPIO_RevA_OutGet((mxc_gpio_reva_regs_t *)port, mask);
135 }
136 
137 /* ************************************************************************** */
MXC_GPIO_OutPut(mxc_gpio_regs_t * port,uint32_t mask,uint32_t val)138 void MXC_GPIO_OutPut(mxc_gpio_regs_t *port, uint32_t mask, uint32_t val)
139 {
140     MXC_GPIO_RevA_OutPut((mxc_gpio_reva_regs_t *)port, mask, val);
141 }
142 
143 /* ************************************************************************** */
MXC_GPIO_OutToggle(mxc_gpio_regs_t * port,uint32_t mask)144 void MXC_GPIO_OutToggle(mxc_gpio_regs_t *port, uint32_t mask)
145 {
146     MXC_GPIO_RevA_OutToggle((mxc_gpio_reva_regs_t *)port, mask);
147 }
148 
149 /* ************************************************************************** */
MXC_GPIO_IntConfig(const mxc_gpio_cfg_t * cfg,mxc_gpio_int_pol_t pol)150 int MXC_GPIO_IntConfig(const mxc_gpio_cfg_t *cfg, mxc_gpio_int_pol_t pol)
151 {
152     return MXC_GPIO_RevA_IntConfig(cfg, pol);
153 }
154 
155 /* ************************************************************************** */
MXC_GPIO_EnableInt(mxc_gpio_regs_t * port,uint32_t mask)156 void MXC_GPIO_EnableInt(mxc_gpio_regs_t *port, uint32_t mask)
157 {
158     MXC_GPIO_RevA_EnableInt((mxc_gpio_reva_regs_t *)port, mask);
159 }
160 
161 /* ************************************************************************** */
MXC_GPIO_DisableInt(mxc_gpio_regs_t * port,uint32_t mask)162 void MXC_GPIO_DisableInt(mxc_gpio_regs_t *port, uint32_t mask)
163 {
164     MXC_GPIO_RevA_DisableInt((mxc_gpio_reva_regs_t *)port, mask);
165 }
166 
167 /* ************************************************************************** */
MXC_GPIO_RegisterCallback(const mxc_gpio_cfg_t * cfg,mxc_gpio_callback_fn func,void * cbdata)168 void MXC_GPIO_RegisterCallback(const mxc_gpio_cfg_t *cfg, mxc_gpio_callback_fn func, void *cbdata)
169 {
170     MXC_GPIO_Common_RegisterCallback(cfg, func, cbdata);
171 }
172 
173 /* ************************************************************************** */
MXC_GPIO_Handler(unsigned int port)174 void MXC_GPIO_Handler(unsigned int port)
175 {
176     MXC_GPIO_Common_Handler(port);
177 }
178 
179 /* ************************************************************************** */
MXC_GPIO_ClearFlags(mxc_gpio_regs_t * port,uint32_t flags)180 void MXC_GPIO_ClearFlags(mxc_gpio_regs_t *port, uint32_t flags)
181 {
182     MXC_GPIO_RevA_ClearFlags((mxc_gpio_reva_regs_t *)port, flags);
183 }
184 
185 /* ************************************************************************** */
MXC_GPIO_GetFlags(mxc_gpio_regs_t * port)186 uint32_t MXC_GPIO_GetFlags(mxc_gpio_regs_t *port)
187 {
188     return MXC_GPIO_RevA_GetFlags((mxc_gpio_reva_regs_t *)port);
189 }
190 
191 /* ************************************************************************** */
MXC_GPIO_SetVSSEL(mxc_gpio_regs_t * port,mxc_gpio_vssel_t vssel,uint32_t mask)192 int MXC_GPIO_SetVSSEL(mxc_gpio_regs_t *port, mxc_gpio_vssel_t vssel, uint32_t mask)
193 {
194     return MXC_GPIO_RevA_SetVSSEL((mxc_gpio_reva_regs_t *)port, vssel, mask);
195 }
196 
197 /* ************************************************************************** */
MXC_GPIO_SetWakeEn(mxc_gpio_regs_t * port,uint32_t mask)198 void MXC_GPIO_SetWakeEn(mxc_gpio_regs_t *port, uint32_t mask)
199 {
200     MXC_GPIO_RevA_SetWakeEn((mxc_gpio_reva_regs_t *)port, mask);
201 }
202 
203 /* ************************************************************************** */
MXC_GPIO_ClearWakeEn(mxc_gpio_regs_t * port,uint32_t mask)204 void MXC_GPIO_ClearWakeEn(mxc_gpio_regs_t *port, uint32_t mask)
205 {
206     MXC_GPIO_RevA_ClearWakeEn((mxc_gpio_reva_regs_t *)port, mask);
207 }
208 
209 /* ************************************************************************** */
MXC_GPIO_GetWakeEn(mxc_gpio_regs_t * port)210 uint32_t MXC_GPIO_GetWakeEn(mxc_gpio_regs_t *port)
211 {
212     return MXC_GPIO_RevA_GetWakeEn((mxc_gpio_reva_regs_t *)port);
213 }
214 
215 /* ************************************************************************** */
MXC_GPIO_SetDriveStrength(mxc_gpio_regs_t * port,mxc_gpio_drvstr_t drvstr,uint32_t mask)216 int MXC_GPIO_SetDriveStrength(mxc_gpio_regs_t *port, mxc_gpio_drvstr_t drvstr, uint32_t mask)
217 {
218     return MXC_GPIO_RevA_SetDriveStrength((mxc_gpio_reva_regs_t *)port, drvstr, mask);
219 }
220