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 <string.h>
23 #include "mxc_errors.h"
24 #include "mxc_assert.h"
25 #include "mxc_sys.h"
26 #include "mxc_pins.h"
27 #include "gpio.h"
28 #include "sdhc.h"
29 #include "sdhc_reva.h"
30
31 /* **** Definitions **** */
32
33 /* **** Globals **** */
34
35 /* **** Functions **** */
36
37 /* ************************************************************************** */
MXC_SDHC_Init(const mxc_sdhc_cfg_t * cfg)38 int MXC_SDHC_Init(const mxc_sdhc_cfg_t *cfg)
39 {
40 MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_SDHC);
41
42 MXC_GPIO_Config(&gpio_cfg_sdhc_0);
43 MXC_GPIO_Config(&gpio_cfg_sdhc_1);
44 gpio_cfg_sdhc_1.port->vssel |= gpio_cfg_sdhc_1.mask;
45 gpio_cfg_sdhc_0.port->ds_sel0 |= gpio_cfg_sdhc_0.mask;
46 gpio_cfg_sdhc_1.port->ds_sel0 |= gpio_cfg_sdhc_1.mask;
47
48 return MXC_SDHC_RevA_Init((mxc_sdhc_reva_regs_t *)MXC_SDHC, cfg);
49 }
50
51 /* ************************************************************************** */
MXC_SDHC_PowerUp(void)52 void MXC_SDHC_PowerUp(void)
53 {
54 MXC_SDHC_RevA_PowerUp((mxc_sdhc_reva_regs_t *)MXC_SDHC);
55 }
56
57 /* ************************************************************************** */
MXC_SDHC_PowerDown(void)58 void MXC_SDHC_PowerDown(void)
59 {
60 MXC_SDHC_RevA_PowerDown((mxc_sdhc_reva_regs_t *)MXC_SDHC);
61 }
62
63 /* ************************************************************************** */
MXC_SDHC_Shutdown(void)64 int MXC_SDHC_Shutdown(void)
65 {
66 MXC_SDHC_RevA_Shutdown((mxc_sdhc_reva_regs_t *)MXC_SDHC);
67 MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_SDHC);
68
69 return E_NO_ERROR;
70 }
71
72 /* ************************************************************************** */
MXC_SDHC_Set_Clock_Config(unsigned int clk_div)73 void MXC_SDHC_Set_Clock_Config(unsigned int clk_div)
74 {
75 MXC_SDHC_RevA_Set_Clock_Config((mxc_sdhc_reva_regs_t *)MXC_SDHC, clk_div);
76 }
77
78 /* ************************************************************************** */
MXC_SDHC_Get_Clock_Config(void)79 unsigned int MXC_SDHC_Get_Clock_Config(void)
80 {
81 /* clk_div is split across two fields in the register. Build it up accordingly */
82 return MXC_SDHC_RevA_Get_Clock_Config((mxc_sdhc_reva_regs_t *)MXC_SDHC);
83 }
84
MXC_SDHC_Get_Input_Clock_Freq(void)85 unsigned int MXC_SDHC_Get_Input_Clock_Freq(void)
86 {
87 if (MXC_GCR->pclk_div & MXC_F_GCR_PCLK_DIV_SDHCFRQ) {
88 return SystemCoreClock >> 1; // Div by 2
89 } else {
90 return 50000000; // UG specifies a hard-coded 50Mhz value in this case
91 }
92 }
93
94 /* ************************************************************************** */
MXC_SDHC_SendCommand(mxc_sdhc_cmd_cfg_t * sd_cmd_cfg)95 int MXC_SDHC_SendCommand(mxc_sdhc_cmd_cfg_t *sd_cmd_cfg)
96 {
97 return MXC_SDHC_RevA_SendCommand((mxc_sdhc_reva_regs_t *)MXC_SDHC, sd_cmd_cfg);
98 }
99
100 /* ************************************************************************** */
MXC_SDHC_SendCommandAsync(mxc_sdhc_cmd_cfg_t * sd_cmd_cfg)101 int MXC_SDHC_SendCommandAsync(mxc_sdhc_cmd_cfg_t *sd_cmd_cfg)
102 {
103 return MXC_SDHC_RevA_SendCommandAsync((mxc_sdhc_reva_regs_t *)MXC_SDHC, sd_cmd_cfg);
104 }
105
106 /* ************************************************************************** */
MXC_SDHC_Handler(void)107 void MXC_SDHC_Handler(void)
108 {
109 MXC_SDHC_RevA_Handler((mxc_sdhc_reva_regs_t *)MXC_SDHC);
110 }
111
112 /* ************************************************************************** */
MXC_SDHC_Card_Inserted(void)113 int MXC_SDHC_Card_Inserted(void)
114 {
115 return MXC_SDHC_RevA_Card_Inserted((mxc_sdhc_reva_regs_t *)MXC_SDHC);
116 }
117
118 /* ************************************************************************** */
MXC_SDHC_ClearFlags(uint32_t mask)119 void MXC_SDHC_ClearFlags(uint32_t mask)
120 {
121 MXC_SDHC_RevA_ClearFlags((mxc_sdhc_reva_regs_t *)MXC_SDHC, mask);
122 }
123
124 /* ************************************************************************** */
MXC_SDHC_GetFlags(void)125 unsigned MXC_SDHC_GetFlags(void)
126 {
127 return MXC_SDHC_RevA_GetFlags((mxc_sdhc_reva_regs_t *)MXC_SDHC);
128 }
129
130 /* ************************************************************************** */
MXC_SDHC_Reset(void)131 void MXC_SDHC_Reset(void)
132 {
133 MXC_SDHC_RevA_Reset((mxc_sdhc_reva_regs_t *)MXC_SDHC);
134 }
135
136 /* ************************************************************************** */
MXC_SDHC_Reset_CMD_DAT(void)137 void MXC_SDHC_Reset_CMD_DAT(void)
138 {
139 MXC_SDHC_RevA_Reset_CMD_DAT((mxc_sdhc_reva_regs_t *)MXC_SDHC);
140 }
141
142 /* ************************************************************************** */
MXC_SDHC_Card_Busy(void)143 int MXC_SDHC_Card_Busy(void)
144 {
145 return MXC_SDHC_RevA_Card_Busy((mxc_sdhc_reva_regs_t *)MXC_SDHC);
146 }
147
148 /* ************************************************************************** */
MXC_SDHC_Get_Host_Cn_1(void)149 unsigned int MXC_SDHC_Get_Host_Cn_1(void)
150 {
151 return MXC_SDHC_RevA_Get_Host_Cn_1((mxc_sdhc_reva_regs_t *)MXC_SDHC);
152 }
153
154 /* ************************************************************************** */
MXC_SDHC_Get_Response32(void)155 uint32_t MXC_SDHC_Get_Response32(void)
156 {
157 return MXC_SDHC_RevA_Get_Response32((mxc_sdhc_reva_regs_t *)MXC_SDHC);
158 }
159
160 /* ************************************************************************** */
MXC_SDHC_Get_Response32_Auto(void)161 uint32_t MXC_SDHC_Get_Response32_Auto(void)
162 {
163 /* The response for auto commands get set at idx 3 */
164 return MXC_SDHC_RevA_Get_Response32_Auto((mxc_sdhc_reva_regs_t *)MXC_SDHC);
165 }
166
167 /* ************************************************************************** */
MXC_SDHC_Get_Response128(unsigned char * response)168 void MXC_SDHC_Get_Response128(unsigned char *response)
169 {
170 MXC_SDHC_RevA_Get_Response128((mxc_sdhc_reva_regs_t *)MXC_SDHC, response);
171 }
172
