1 /**
2 * @file i2s.c
3 * @brief Inter-Integrated Sound (I2S) driver implementation.
4 */
5
6 /******************************************************************************
7 *
8 * Copyright (C) 2022-2023 Maxim Integrated Products, Inc. (now owned by
9 * Analog Devices, Inc.),
10 * Copyright (C) 2023-2024 Analog Devices, Inc.
11 *
12 * Licensed under the Apache License, Version 2.0 (the "License");
13 * you may not use this file except in compliance with the License.
14 * You may obtain a copy of the License at
15 *
16 * http://www.apache.org/licenses/LICENSE-2.0
17 *
18 * Unless required by applicable law or agreed to in writing, software
19 * distributed under the License is distributed on an "AS IS" BASIS,
20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 * See the License for the specific language governing permissions and
22 * limitations under the License.
23 *
24 ******************************************************************************/
25
26 #include <stdio.h>
27 #include <stddef.h>
28 #include <stdint.h>
29 #include "mxc_device.h"
30 #include "mxc_assert.h"
31 #include "mxc_lock.h"
32 #include "mxc_sys.h"
33 #include "mxc_delay.h"
34 #include "dma.h"
35 #include "i2s.h"
36 #include "i2s_reva.h"
37 #include "i2s_regs.h"
38
MXC_I2S_Init(mxc_i2s_req_t * req)39 int MXC_I2S_Init(mxc_i2s_req_t *req)
40 {
41 MXC_I2S_Shutdown();
42 MXC_SYS_ClockEnable(MXC_SYS_PERIPH_CLOCK_I2S);
43 MXC_GPIO_Config(&gpio_cfg_i2s0);
44 MXC_GPIO_Config(&gpio_cfg_i2s0_extclk);
45
46 return MXC_I2S_RevA_Init((mxc_i2s_reva_regs_t *)MXC_I2S, req);
47 }
48
MXC_I2S_Shutdown(void)49 int MXC_I2S_Shutdown(void)
50 {
51 MXC_I2S_RevA_Shutdown((mxc_i2s_reva_regs_t *)MXC_I2S);
52
53 MXC_SYS_ClockDisable(MXC_SYS_PERIPH_CLOCK_I2S);
54 MXC_SYS_Reset_Periph(MXC_SYS_RESET1_I2S);
55
56 return E_NO_ERROR;
57 }
58
MXC_I2S_ConfigData(mxc_i2s_req_t * req)59 int MXC_I2S_ConfigData(mxc_i2s_req_t *req)
60 {
61 return MXC_I2S_RevA_ConfigData((mxc_i2s_reva_regs_t *)MXC_I2S, req);
62 }
63
MXC_I2S_TXEnable(void)64 void MXC_I2S_TXEnable(void)
65 {
66 MXC_I2S_RevA_TXEnable((mxc_i2s_reva_regs_t *)MXC_I2S);
67 }
68
MXC_I2S_TXDisable(void)69 void MXC_I2S_TXDisable(void)
70 {
71 MXC_I2S_RevA_TXDisable((mxc_i2s_reva_regs_t *)MXC_I2S);
72 }
73
MXC_I2S_RXEnable(void)74 void MXC_I2S_RXEnable(void)
75 {
76 MXC_I2S_RevA_RXEnable((mxc_i2s_reva_regs_t *)MXC_I2S);
77 }
78
MXC_I2S_RXDisable(void)79 void MXC_I2S_RXDisable(void)
80 {
81 MXC_I2S_RevA_RXDisable((mxc_i2s_reva_regs_t *)MXC_I2S);
82 }
83
MXC_I2S_SetRXThreshold(uint8_t threshold)84 int MXC_I2S_SetRXThreshold(uint8_t threshold)
85 {
86 return MXC_I2S_RevA_SetRXThreshold((mxc_i2s_reva_regs_t *)MXC_I2S, threshold);
87 }
88
MXC_I2S_SetFrequency(mxc_i2s_ch_mode_t mode,uint16_t clkdiv)89 int MXC_I2S_SetFrequency(mxc_i2s_ch_mode_t mode, uint16_t clkdiv)
90 {
91 return MXC_I2S_RevA_SetFrequency((mxc_i2s_reva_regs_t *)MXC_I2S, mode, clkdiv);
92 }
93
MXC_I2S_SetSampleRate(uint32_t smpl_rate,mxc_i2s_wsize_t smpl_sz,uint32_t i2s_clk)94 int MXC_I2S_SetSampleRate(uint32_t smpl_rate, mxc_i2s_wsize_t smpl_sz, uint32_t i2s_clk)
95 {
96 return MXC_I2S_RevA_SetSampleRate((mxc_i2s_reva_regs_t *)MXC_I2S, smpl_rate, smpl_sz, i2s_clk);
97 }
98
MXC_I2S_GetSampleRate(uint32_t i2s_clk)99 int MXC_I2S_GetSampleRate(uint32_t i2s_clk)
100 {
101 return MXC_I2S_RevA_GetSampleRate((mxc_i2s_reva_regs_t *)MXC_I2S, i2s_clk);
102 }
103
MXC_I2S_CalculateClockDiv(uint32_t smpl_rate,mxc_i2s_wsize_t smpl_sz,uint32_t i2s_clk)104 int MXC_I2S_CalculateClockDiv(uint32_t smpl_rate, mxc_i2s_wsize_t smpl_sz, uint32_t i2s_clk)
105 {
106 return MXC_I2S_RevA_CalculateClockDiv((mxc_i2s_reva_regs_t *)MXC_I2S, smpl_rate, smpl_sz,
107 i2s_clk);
108 }
109
MXC_I2S_Flush(void)110 void MXC_I2S_Flush(void)
111 {
112 MXC_I2S_RevA_Flush((mxc_i2s_reva_regs_t *)MXC_I2S);
113 }
114
MXC_I2S_FillTXFIFO(void * txData,mxc_i2s_wsize_t wordSize,int len,int smpl_cnt)115 int MXC_I2S_FillTXFIFO(void *txData, mxc_i2s_wsize_t wordSize, int len, int smpl_cnt)
116 {
117 return MXC_I2S_RevA_FillTXFIFO((mxc_i2s_reva_regs_t *)MXC_I2S, txData, wordSize, len, smpl_cnt);
118 }
119
MXC_I2S_ReadRXFIFO(void * rxData,mxc_i2s_wsize_t wordSize,int len,int smpl_cnt)120 int MXC_I2S_ReadRXFIFO(void *rxData, mxc_i2s_wsize_t wordSize, int len, int smpl_cnt)
121 {
122 return MXC_I2S_RevA_ReadRXFIFO((mxc_i2s_reva_regs_t *)MXC_I2S, rxData, wordSize, len, smpl_cnt);
123 }
124
MXC_I2S_EnableInt(uint32_t flags)125 void MXC_I2S_EnableInt(uint32_t flags)
126 {
127 MXC_I2S_RevA_EnableInt((mxc_i2s_reva_regs_t *)MXC_I2S, flags);
128 }
129
MXC_I2S_DisableInt(uint32_t flags)130 void MXC_I2S_DisableInt(uint32_t flags)
131 {
132 MXC_I2S_RevA_DisableInt((mxc_i2s_reva_regs_t *)MXC_I2S, flags);
133 }
134
MXC_I2S_GetFlags(void)135 int MXC_I2S_GetFlags(void)
136 {
137 return MXC_I2S_RevA_GetFlags((mxc_i2s_reva_regs_t *)MXC_I2S);
138 }
139
MXC_I2S_ClearFlags(uint32_t flags)140 void MXC_I2S_ClearFlags(uint32_t flags)
141 {
142 MXC_I2S_RevA_ClearFlags((mxc_i2s_reva_regs_t *)MXC_I2S, flags);
143 }
144
MXC_I2S_Transaction(mxc_i2s_req_t * i2s_req)145 int MXC_I2S_Transaction(mxc_i2s_req_t *i2s_req)
146 {
147 return MXC_I2S_RevA_Transaction((mxc_i2s_reva_regs_t *)MXC_I2S, i2s_req);
148 }
149
MXC_I2S_TransactionAsync(mxc_i2s_req_t * i2s_req)150 int MXC_I2S_TransactionAsync(mxc_i2s_req_t *i2s_req)
151 {
152 return MXC_I2S_RevA_TransactionAsync((mxc_i2s_reva_regs_t *)MXC_I2S, i2s_req);
153 }
154
MXC_I2S_TXDMAConfig(void * src_addr,int len)155 int MXC_I2S_TXDMAConfig(void *src_addr, int len)
156 {
157 return MXC_I2S_RevA_TXDMAConfig((mxc_i2s_reva_regs_t *)MXC_I2S, src_addr, len);
158 }
159
MXC_I2S_RXDMAConfig(void * dest_addr,int len)160 int MXC_I2S_RXDMAConfig(void *dest_addr, int len)
161 {
162 return MXC_I2S_RevA_RXDMAConfig((mxc_i2s_reva_regs_t *)MXC_I2S, dest_addr, len);
163 }
164
MXC_I2S_Handler(void)165 void MXC_I2S_Handler(void)
166 {
167 MXC_I2S_RevA_Handler((mxc_i2s_reva_regs_t *)MXC_I2S);
168 }
169
MXC_I2S_RegisterDMACallback(void (* callback)(int,int))170 void MXC_I2S_RegisterDMACallback(void (*callback)(int, int))
171 {
172 MXC_I2S_RevA_RegisterDMACallback(callback);
173 }
174
MXC_I2S_RegisterAsyncCallback(void (* callback)(int))175 void MXC_I2S_RegisterAsyncCallback(void (*callback)(int))
176 {
177 MXC_I2S_RevA_RegisterAsyncCallback(callback);
178 }
179