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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <config.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | static const uint32_t scanopts[] = { | |
24 | SR_CONF_CONN, | |
25 | SR_CONF_SERIALCOMM, | |
26 | }; | |
27 | ||
28 | static const uint32_t drvopts_temp[] = { | |
29 | SR_CONF_THERMOMETER, | |
30 | }; | |
31 | ||
32 | static const uint32_t drvopts_temp_hum[] = { | |
33 | SR_CONF_THERMOMETER, | |
34 | SR_CONF_HYGROMETER, | |
35 | }; | |
36 | ||
37 | static const uint32_t devopts[] = { | |
38 | SR_CONF_CONTINUOUS, | |
39 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, | |
40 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
41 | }; | |
42 | ||
43 | static struct sr_dev_driver mic_98581_driver_info; | |
44 | static struct sr_dev_driver mic_98583_driver_info; | |
45 | ||
46 | SR_PRIV const struct mic_dev_info mic_devs[] = { | |
47 | { | |
48 | "MIC", "98581", "38400/8n2", 32000, TRUE, FALSE, 6, | |
49 | packet_valid_temp, | |
50 | &mic_98581_driver_info, receive_data_MIC_98581, | |
51 | }, | |
52 | { | |
53 | "MIC", "98583", "38400/8n2", 32000, TRUE, TRUE, 10, | |
54 | packet_valid_temp_hum, | |
55 | &mic_98583_driver_info, receive_data_MIC_98583, | |
56 | }, | |
57 | }; | |
58 | ||
59 | static GSList *mic_scan(const char *conn, const char *serialcomm, int idx) | |
60 | { | |
61 | struct sr_dev_inst *sdi; | |
62 | struct dev_context *devc; | |
63 | struct sr_serial_dev_inst *serial; | |
64 | ||
65 | serial = sr_serial_dev_inst_new(conn, serialcomm); | |
66 | ||
67 | if (serial_open(serial, SERIAL_RDWR) != SR_OK) | |
68 | return NULL; | |
69 | ||
70 | serial_flush(serial); | |
71 | ||
72 | /* TODO: Query device type. */ | |
73 | // ret = mic_cmd_get_device_info(serial); | |
74 | ||
75 | sr_info("Found device on port %s.", conn); | |
76 | ||
77 | /* TODO: Fill in version from protocol response. */ | |
78 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
79 | sdi->status = SR_ST_INACTIVE; | |
80 | sdi->vendor = g_strdup(mic_devs[idx].vendor); | |
81 | sdi->model = g_strdup(mic_devs[idx].device); | |
82 | devc = g_malloc0(sizeof(struct dev_context)); | |
83 | sr_sw_limits_init(&devc->limits); | |
84 | sdi->inst_type = SR_INST_SERIAL; | |
85 | sdi->conn = serial; | |
86 | sdi->priv = devc; | |
87 | ||
88 | sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "Temperature"); | |
89 | ||
90 | if (mic_devs[idx].has_humidity) | |
91 | sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "Humidity"); | |
92 | ||
93 | serial_close(serial); | |
94 | ||
95 | return std_scan_complete(mic_devs[idx].di, g_slist_append(NULL, sdi)); | |
96 | } | |
97 | ||
98 | static GSList *scan(GSList *options, int idx) | |
99 | { | |
100 | struct sr_config *src; | |
101 | GSList *l, *devices; | |
102 | const char *conn, *serialcomm; | |
103 | ||
104 | conn = serialcomm = NULL; | |
105 | for (l = options; l; l = l->next) { | |
106 | src = l->data; | |
107 | switch (src->key) { | |
108 | case SR_CONF_CONN: | |
109 | conn = g_variant_get_string(src->data, NULL); | |
110 | break; | |
111 | case SR_CONF_SERIALCOMM: | |
112 | serialcomm = g_variant_get_string(src->data, NULL); | |
113 | break; | |
114 | } | |
115 | } | |
116 | if (!conn) | |
117 | return NULL; | |
118 | ||
119 | if (serialcomm) | |
120 | devices = mic_scan(conn, serialcomm, idx); | |
121 | else | |
122 | devices = mic_scan(conn, mic_devs[idx].conn, idx); | |
123 | ||
124 | return devices; | |
125 | } | |
126 | ||
127 | static int config_set(uint32_t key, GVariant *data, | |
128 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) | |
129 | { | |
130 | struct dev_context *devc; | |
131 | ||
132 | (void)cg; | |
133 | ||
134 | devc = sdi->priv; | |
135 | ||
136 | return sr_sw_limits_config_set(&devc->limits, key, data); | |
137 | } | |
138 | ||
139 | static int config_list(uint32_t key, GVariant **data, | |
140 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg, int idx) | |
141 | { | |
142 | /* | |
143 | * We can't use the ternary operator here! The result would contain | |
144 | * sizeof((cond) ? A : B) where A/B are arrays of different type/size. | |
145 | * The ternary operator always returns the "common" type of A and B, | |
146 | * which would be a pointer instead of either the A or B arrays. | |
147 | * Thus, sizeof() would yield the size of a pointer, not the size | |
148 | * of either the A or B array, which is not what we want. | |
149 | */ | |
150 | if (mic_devs[idx].has_humidity) | |
151 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts_temp_hum, devopts); | |
152 | else | |
153 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts_temp, devopts); | |
154 | } | |
155 | ||
156 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, int idx) | |
157 | { | |
158 | struct dev_context *devc; | |
159 | struct sr_serial_dev_inst *serial; | |
160 | ||
161 | devc = sdi->priv; | |
162 | ||
163 | sr_sw_limits_acquisition_start(&devc->limits); | |
164 | std_session_send_df_header(sdi); | |
165 | ||
166 | serial = sdi->conn; | |
167 | serial_source_add(sdi->session, serial, G_IO_IN, 100, | |
168 | mic_devs[idx].receive_data, (void *)sdi); | |
169 | ||
170 | return SR_OK; | |
171 | } | |
172 | ||
173 | /* Driver-specific API function wrappers */ | |
174 | #define HW_SCAN(X) \ | |
175 | static GSList *scan_##X(struct sr_dev_driver *di, GSList *options) { \ | |
176 | (void)di; return scan(options, X); } | |
177 | #define HW_CONFIG_LIST(X) \ | |
178 | static int config_list_##X(uint32_t key, GVariant **data, \ | |
179 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { \ | |
180 | return config_list(key, data, sdi, cg, X); } | |
181 | #define HW_DEV_ACQUISITION_START(X) \ | |
182 | static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi \ | |
183 | ) { return dev_acquisition_start(sdi, X); } | |
184 | ||
185 | /* Driver structs and API function wrappers */ | |
186 | #define DRV(ID, ID_UPPER, NAME, LONGNAME) \ | |
187 | HW_SCAN(ID_UPPER) \ | |
188 | HW_CONFIG_LIST(ID_UPPER) \ | |
189 | HW_DEV_ACQUISITION_START(ID_UPPER) \ | |
190 | static struct sr_dev_driver ID##_driver_info = { \ | |
191 | .name = NAME, \ | |
192 | .longname = LONGNAME, \ | |
193 | .api_version = 1, \ | |
194 | .init = std_init, \ | |
195 | .cleanup = std_cleanup, \ | |
196 | .scan = scan_##ID_UPPER, \ | |
197 | .dev_list = std_dev_list, \ | |
198 | .dev_clear = std_dev_clear, \ | |
199 | .config_get = NULL, \ | |
200 | .config_set = config_set, \ | |
201 | .config_list = config_list_##ID_UPPER, \ | |
202 | .dev_open = std_serial_dev_open, \ | |
203 | .dev_close = std_serial_dev_close, \ | |
204 | .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \ | |
205 | .dev_acquisition_stop = std_serial_dev_acquisition_stop, \ | |
206 | .context = NULL, \ | |
207 | }; \ | |
208 | SR_REGISTER_DEV_DRIVER(ID##_driver_info) | |
209 | ||
210 | DRV(mic_98581, MIC_98581, "mic-98581", "MIC 98581") | |
211 | DRV(mic_98583, MIC_98583, "mic-98583", "MIC 98583") |