1 /*
2 * Copyright (c) 2019 Winner Microelectronics Co., Ltd.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2018-11-23 fanwenl 1st version
9 */
10
11 #include <rtthread.h>
12 #include <rtdevice.h>
13 #include "wm_io.h"
14 #include "wm_adc.h"
15 #include "wm_gpio_afsel.h"
16 #include "drv_adc.h"
17
18 #ifdef BSP_USING_ADC
19 #if defined(USING_ADC_CH1) || defined(USING_ADC_CH2) || defined(USING_ADC_CH3) || defined(USING_ADC_CH4) || \
20 defined(USING_ADC_CH5) || defined(USING_ADC_CH6) || defined(USING_ADC_CH7) || defined(USING_ADC_CH8)
21
wm_adc_enabled(struct rt_adc_device * device,rt_uint32_t channel,rt_bool_t enabled)22 static rt_err_t wm_adc_enabled(struct rt_adc_device *device, rt_uint32_t channel, rt_bool_t enabled)
23 {
24 if (channel < 1 || channel > 8)
25 return -RT_ERROR;
26
27 if (enabled == RT_TRUE)
28 {
29 tls_adc_start_with_cpu(channel - 1);
30 }
31 else
32 {
33 tls_adc_stop(0);
34 }
35 return RT_EOK;
36 }
37
wm_adc_convert(struct rt_adc_device * device,rt_uint32_t channel,rt_uint32_t * value)38 static rt_err_t wm_adc_convert(struct rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value)
39 {
40 if (channel < 1 || channel > 8)
41 return -RT_ERROR;
42
43 *value = adc_get_inputVolt(channel - 1) ;
44
45 return RT_EOK;
46 }
47
48 static struct rt_adc_ops wm_adc_ops =
49 {
50 wm_adc_enabled,
51 wm_adc_convert,
52 };
53 static struct rt_adc_device wm_adc;
54 #endif
55
56 #ifdef USING_CPU_TEMP
wm_cpu_temp_enabled(struct rt_adc_device * device,rt_uint32_t channel,rt_bool_t enabled)57 static rt_err_t wm_cpu_temp_enabled(struct rt_adc_device *device, rt_uint32_t channel, rt_bool_t enabled)
58 {
59 if (enabled == RT_FALSE)
60 {
61 tls_adc_stop(0);
62 }
63 return RT_EOK;
64
65 }
66
wm_cpu_temp_convert(struct rt_adc_device * device,rt_uint32_t channel,rt_uint32_t * value)67 static rt_err_t wm_cpu_temp_convert(struct rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value)
68 {
69 *value = (rt_uint32_t)adc_temp();
70
71 /**
72 sprintf(temperature, "%d.%d", *value/1000, (*value%1000)/100);
73 printf("tem: %s", temperature);
74 */
75
76 return RT_EOK;
77 }
78
79 static struct rt_adc_ops wm_cpu_temp_ops =
80 {
81 wm_cpu_temp_enabled,
82 wm_cpu_temp_convert,
83 };
84 static struct rt_adc_device wm_cpu_temp;
85 #endif
86
wm_hw_adc_init(void)87 int wm_hw_adc_init(void)
88 {
89 /*adc io config*/
90 #ifdef USING_ADC_CH1
91 wm_adc_config(0);
92 #endif
93 #ifdef USING_ADC_CH2
94 wm_adc_config(1);
95 #endif
96 #ifdef USING_ADC_CH3
97 wm_adc_config(2);
98 #endif
99 #ifdef USING_ADC_CH4
100 wm_adc_config(3);
101 #endif
102 #ifdef USING_ADC_CH5
103 wm_adc_config(4);
104 #endif
105 #ifdef USING_ADC_CH6
106 wm_adc_config(5);
107 #endif
108 #ifdef USING_ADC_CH7
109 wm_adc_config(6);
110 #endif
111 #ifdef USING_ADC_CH8
112 wm_adc_config(7);
113 #endif
114
115 #if defined(USING_ADC_CH1) || defined(USING_ADC_CH2) || defined(USING_ADC_CH3) || defined(USING_ADC_CH4) || \
116 defined(USING_ADC_CH5) || defined(USING_ADC_CH6) || defined(USING_ADC_CH7) || defined(USING_ADC_CH8)
117
118 rt_hw_adc_register(&wm_adc, "adc", &wm_adc_ops, 0);
119 #endif
120
121 #ifdef USING_CPU_TEMP
122 rt_hw_adc_register(&wm_cpu_temp, "cputemp", &wm_cpu_temp_ops, 0);
123 #endif
124
125 return RT_EOK;
126 }
127 INIT_DEVICE_EXPORT(wm_hw_adc_init);
128
129 #endif /* BSP_USING_ADC */
130