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 "mxc_pins.h"
27 #include "gpio.h"
28 #include "gpio_reva.h"
29 #include "gpio_common.h"
30 #include "uart.h"
31 #include "uart_revb.h"
32 #include "uart_common.h"
33 #include "mcr_regs.h"
34 #include "dma.h"
35
36 /* **** Functions **** */
37
MXC_AFE_GPIO_Config(const mxc_gpio_cfg_t * cfg)38 int MXC_AFE_GPIO_Config(const mxc_gpio_cfg_t *cfg)
39 {
40 int error;
41 mxc_gpio_regs_t *gpio = cfg->port;
42
43 // Configure alternate function
44 error = MXC_GPIO_RevA_SetAF((mxc_gpio_reva_regs_t *)gpio, cfg->func, cfg->mask);
45
46 if (error != E_NO_ERROR) {
47 return error;
48 }
49
50 // Configure the pad
51 switch (cfg->pad) {
52 case MXC_GPIO_PAD_NONE:
53 gpio->padctrl0 &= ~cfg->mask;
54 gpio->padctrl1 &= ~cfg->mask;
55 break;
56
57 case MXC_GPIO_PAD_PULL_UP:
58 gpio->padctrl0 |= cfg->mask;
59 gpio->padctrl1 |= cfg->mask;
60 gpio->ps |= cfg->mask;
61 break;
62
63 case MXC_GPIO_PAD_PULL_DOWN:
64 gpio->padctrl0 |= cfg->mask;
65 gpio->padctrl1 |= cfg->mask;
66 gpio->ps &= ~cfg->mask;
67 break;
68
69 default:
70 return E_BAD_PARAM;
71 }
72
73 return E_NO_ERROR;
74 }
75
