1 /*
2 * Copyright (c) 2013-2020 Arm Limited. All rights reserved.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Licensed under the Apache License, Version 2.0 (the License); you may
7 * not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
14 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 #include "Driver_SPI.h"
20
21 #define ARM_SPI_DRV_VERSION ARM_DRIVER_VERSION_MAJOR_MINOR(1, 0) /* driver version */
22
23 /* Driver Version */
24 static const ARM_DRIVER_VERSION DriverVersion = {
25 ARM_SPI_API_VERSION,
26 ARM_SPI_DRV_VERSION
27 };
28
29 /* Driver Capabilities */
30 static const ARM_SPI_CAPABILITIES DriverCapabilities = {
31 0, /* Reserved (must be zero) */
32 0, /* TI Synchronous Serial Interface */
33 0, /* Microwire Interface */
34 0, /* Signal Mode Fault event: \ref ARM_SPI_EVENT_MODE_FAULT */
35 0 /* Reserved (must be zero) */
36 };
37
38 //
39 // Functions
40 //
41
ARM_SPI_GetVersion(void)42 static ARM_DRIVER_VERSION ARM_SPI_GetVersion(void)
43 {
44 return DriverVersion;
45 }
46
ARM_SPI_GetCapabilities(void)47 static ARM_SPI_CAPABILITIES ARM_SPI_GetCapabilities(void)
48 {
49 return DriverCapabilities;
50 }
51
ARM_SPI_Initialize(ARM_SPI_SignalEvent_t cb_event)52 static int32_t ARM_SPI_Initialize(ARM_SPI_SignalEvent_t cb_event)
53 {
54 }
55
ARM_SPI_Uninitialize(void)56 static int32_t ARM_SPI_Uninitialize(void)
57 {
58 }
59
ARM_SPI_PowerControl(ARM_POWER_STATE state)60 static int32_t ARM_SPI_PowerControl(ARM_POWER_STATE state)
61 {
62 switch (state)
63 {
64 case ARM_POWER_OFF:
65 break;
66
67 case ARM_POWER_LOW:
68 break;
69
70 case ARM_POWER_FULL:
71 break;
72 }
73 return ARM_DRIVER_OK;
74 }
75
ARM_SPI_Send(const void * data,uint32_t num)76 static int32_t ARM_SPI_Send(const void *data, uint32_t num)
77 {
78 }
79
ARM_SPI_Receive(void * data,uint32_t num)80 static int32_t ARM_SPI_Receive(void *data, uint32_t num)
81 {
82 }
83
ARM_SPI_Transfer(const void * data_out,void * data_in,uint32_t num)84 static int32_t ARM_SPI_Transfer(const void *data_out, void *data_in, uint32_t num)
85 {
86 }
87
ARM_SPI_GetDataCount(void)88 static uint32_t ARM_SPI_GetDataCount(void)
89 {
90 }
91
ARM_SPI_Control(uint32_t control,uint32_t arg)92 static int32_t ARM_SPI_Control(uint32_t control, uint32_t arg)
93 {
94 switch (control & ARM_SPI_CONTROL_Msk)
95 {
96 default:
97 return ARM_DRIVER_ERROR_UNSUPPORTED;
98
99 case ARM_SPI_MODE_INACTIVE: // SPI Inactive
100 return ARM_DRIVER_OK;
101
102 case ARM_SPI_MODE_MASTER: // SPI Master (Output on MOSI, Input on MISO); arg = Bus Speed in bps
103 break;
104
105 case ARM_SPI_MODE_SLAVE: // SPI Slave (Output on MISO, Input on MOSI)
106 break;
107
108 case ARM_SPI_SET_BUS_SPEED: // Set Bus Speed in bps; arg = value
109 break;
110
111 case ARM_SPI_GET_BUS_SPEED: // Get Bus Speed in bps
112 break;
113
114 case ARM_SPI_SET_DEFAULT_TX_VALUE: // Set default Transmit value; arg = value
115 break;
116
117 case ARM_SPI_CONTROL_SS: // Control Slave Select; arg = 0:inactive, 1:active
118 break;
119
120 case ARM_SPI_ABORT_TRANSFER: // Abort current data transfer
121 break;
122 }
123 }
124
ARM_SPI_GetStatus(void)125 static ARM_SPI_STATUS ARM_SPI_GetStatus(void)
126 {
127 }
128
ARM_SPI_SignalEvent(uint32_t event)129 static void ARM_SPI_SignalEvent(uint32_t event)
130 {
131 // function body
132 }
133
134 // End SPI Interface
135
136 extern \
137 ARM_DRIVER_SPI Driver_SPI0;
138 ARM_DRIVER_SPI Driver_SPI0 = {
139 ARM_SPI_GetVersion,
140 ARM_SPI_GetCapabilities,
141 ARM_SPI_Initialize,
142 ARM_SPI_Uninitialize,
143 ARM_SPI_PowerControl,
144 ARM_SPI_Send,
145 ARM_SPI_Receive,
146 ARM_SPI_Transfer,
147 ARM_SPI_GetDataCount,
148 ARM_SPI_Control,
149 ARM_SPI_GetStatus
150 };
151
