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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
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 3 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 <string.h> | |
21 | #include <glib.h> | |
22 | #include "libsigrok.h" | |
23 | #include "libsigrok-internal.h" | |
24 | #include "protocol.h" | |
25 | ||
26 | #define OSCI_VENDOR "Nexus Computing" | |
27 | #define OSCI_MODEL "OsciPrime" | |
28 | #define OSCI_VERSION "1.0" | |
29 | #define OSCI_FIRMWARE FIRMWARE_DIR "/nexus-osciprime.fw" | |
30 | #define OSCI_VIDPID "04b4.1004" | |
31 | ||
32 | static const int hwopts[] = { | |
33 | SR_CONF_CONN, | |
34 | SR_CONF_SERIALCOMM, | |
35 | 0, | |
36 | }; | |
37 | ||
38 | static const int hwcaps[] = { | |
39 | SR_CONF_OSCILLOSCOPE, | |
40 | SR_CONF_LIMIT_SAMPLES, | |
41 | SR_CONF_CONTINUOUS, | |
42 | SR_CONF_TIMEBASE, | |
43 | SR_CONF_VDIV, | |
44 | 0, | |
45 | }; | |
46 | ||
47 | static const struct sr_rational timebases[] = { | |
48 | /* 24 MHz */ | |
49 | { 42, 1e9 }, | |
50 | /* 12 MHz */ | |
51 | { 83, 1e9 }, | |
52 | /* 6 MHz */ | |
53 | { 167, 1e9 }, | |
54 | /* 3 MHz */ | |
55 | { 333, 1e9 }, | |
56 | /* 1.5 MHz */ | |
57 | { 667, 1e9 }, | |
58 | /* 750 kHz */ | |
59 | { 1333, 1e9 }, | |
60 | /* 375 kHz */ | |
61 | { 2667, 1e9 }, | |
62 | /* 187.5 kHz */ | |
63 | { 5333, 1e9 }, | |
64 | /* 93.25 kHz */ | |
65 | { 10724, 1e9 }, | |
66 | /* 46.875 kHz */ | |
67 | { 21333, 1e9 }, | |
68 | /* 23.4375 kHz */ | |
69 | { 42666, 1e9 }, | |
70 | /* 11.718 kHz */ | |
71 | { 85339, 1e9 }, | |
72 | /* 5.859 kHz */ | |
73 | { 170678, 1e9 }, | |
74 | /* 2.929 kHz */ | |
75 | { 341413, 1e9 }, | |
76 | /* 1.465 kHz */ | |
77 | { 682594, 1e9 }, | |
78 | /* 732 Hz */ | |
79 | { 1366, 1e6 }, | |
80 | /* 366 Hz */ | |
81 | { 2732, 1e6 }, | |
82 | /* 183 Hz */ | |
83 | { 5464, 1e6 }, | |
84 | /* 91 Hz */ | |
85 | { 10989, 1e6 }, | |
86 | /* 46 Hz */ | |
87 | { 21739, 1e6 }, | |
88 | /* 23 Hz */ | |
89 | { 43478, 1e6 }, | |
90 | /* 12 Hz */ | |
91 | { 83333, 1e6 }, | |
92 | }; | |
93 | ||
94 | static const char *probe_names[] = { | |
95 | "CHA", "CHB", | |
96 | NULL, | |
97 | }; | |
98 | ||
99 | static const struct sr_rational vdivs[] = { | |
100 | { 1, 1 }, | |
101 | { 2, 1 }, | |
102 | { 5, 2 }, | |
103 | { 5, 1 }, | |
104 | { 10, 1 }, | |
105 | }; | |
106 | ||
107 | ||
108 | SR_PRIV struct sr_dev_driver nexus_osciprime_driver_info; | |
109 | static struct sr_dev_driver *di = &nexus_osciprime_driver_info; | |
110 | static int hw_dev_close(struct sr_dev_inst *sdi); | |
111 | ||
112 | /* Properly close and free all devices. */ | |
113 | static int clear_instances(void) | |
114 | { | |
115 | struct sr_dev_inst *sdi; | |
116 | struct drv_context *drvc; | |
117 | struct dev_context *devc; | |
118 | GSList *l; | |
119 | ||
120 | if (!(drvc = di->priv)) | |
121 | return SR_OK; | |
122 | ||
123 | for (l = drvc->instances; l; l = l->next) { | |
124 | if (!(sdi = l->data)) | |
125 | continue; | |
126 | if (!(devc = sdi->priv)) | |
127 | continue; | |
128 | ||
129 | hw_dev_close(sdi); | |
130 | sr_usb_dev_inst_free(devc->usb); | |
131 | sr_dev_inst_free(sdi); | |
132 | } | |
133 | ||
134 | g_slist_free(drvc->instances); | |
135 | drvc->instances = NULL; | |
136 | ||
137 | return SR_OK; | |
138 | } | |
139 | ||
140 | static int hw_init(struct sr_context *sr_ctx) | |
141 | { | |
142 | return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN); | |
143 | } | |
144 | ||
145 | static GSList *hw_scan(GSList *options) | |
146 | { | |
147 | struct drv_context *drvc; | |
148 | struct dev_context *devc; | |
149 | struct sr_dev_inst *sdi; | |
150 | struct sr_usb_dev_inst *usb; | |
151 | struct sr_config *src; | |
152 | struct sr_probe *probe; | |
153 | libusb_device *dev; | |
154 | GSList *usb_devices, *devices, *l; | |
155 | int i; | |
156 | const char *conn; | |
157 | ||
158 | (void)options; | |
159 | ||
160 | drvc = di->priv; | |
161 | ||
162 | /* USB scan is always authoritative. */ | |
163 | clear_instances(); | |
164 | ||
165 | conn = NULL; | |
166 | for (l = options; l; l = l->next) { | |
167 | src = l->data; | |
168 | switch (src->key) { | |
169 | case SR_CONF_CONN: | |
170 | conn = src->value; | |
171 | break; | |
172 | } | |
173 | } | |
174 | if (!conn) | |
175 | conn = OSCI_VIDPID; | |
176 | ||
177 | devices = NULL; | |
178 | if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) { | |
179 | for (l = usb_devices; l; l = l->next) { | |
180 | usb = l->data; | |
181 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, | |
182 | OSCI_VENDOR, OSCI_MODEL, OSCI_VERSION))) | |
183 | return NULL; | |
184 | sdi->driver = di; | |
185 | for (i = 0; probe_names[i]; i++) { | |
186 | if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, | |
187 | probe_names[i]))) | |
188 | return NULL; | |
189 | sdi->probes = g_slist_append(sdi->probes, probe); | |
190 | } | |
191 | ||
192 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) | |
193 | return NULL; | |
194 | sdi->priv = devc; | |
195 | devc->usb = usb; | |
196 | ||
197 | if (strcmp(conn, OSCI_VIDPID)) { | |
198 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) | |
199 | break; | |
200 | dev = libusb_get_device(usb->devhdl); | |
201 | if (ezusb_upload_firmware(dev, 0, OSCI_FIRMWARE) == SR_OK) | |
202 | /* Remember when the firmware on this device was updated */ | |
203 | devc->fw_updated = g_get_monotonic_time(); | |
204 | else | |
205 | sr_err("Firmware upload failed for device " | |
206 | "at bus %d address %d.", usb->bus, usb->address); | |
207 | } | |
208 | ||
209 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
210 | devices = g_slist_append(devices, sdi); | |
211 | } | |
212 | g_slist_free(usb_devices); | |
213 | } else | |
214 | g_slist_free_full(usb_devices, g_free); | |
215 | ||
216 | return devices; | |
217 | } | |
218 | ||
219 | static GSList *hw_dev_list(void) | |
220 | { | |
221 | return ((struct drv_context *)(di->priv))->instances; | |
222 | } | |
223 | ||
224 | static int hw_dev_open(struct sr_dev_inst *sdi) | |
225 | { | |
226 | ||
227 | /* TODO */ | |
228 | (void)sdi; | |
229 | ||
230 | return SR_OK; | |
231 | } | |
232 | ||
233 | static int hw_dev_close(struct sr_dev_inst *sdi) | |
234 | { | |
235 | ||
236 | /* TODO */ | |
237 | (void)sdi; | |
238 | ||
239 | return SR_OK; | |
240 | } | |
241 | ||
242 | static int hw_cleanup(void) | |
243 | { | |
244 | clear_instances(); | |
245 | ||
246 | /* TODO */ | |
247 | ||
248 | return SR_OK; | |
249 | } | |
250 | ||
251 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi) | |
252 | { | |
253 | int ret; | |
254 | ||
255 | /* TODO */ | |
256 | (void)value; | |
257 | ||
258 | if (sdi->status != SR_ST_ACTIVE) { | |
259 | sr_err("Device inactive, can't set config options."); | |
260 | return SR_ERR; | |
261 | } | |
262 | ||
263 | ret = SR_OK; | |
264 | switch (id) { | |
265 | ||
266 | default: | |
267 | sr_err("Unknown hardware capability: %d.", id); | |
268 | ret = SR_ERR_ARG; | |
269 | } | |
270 | ||
271 | return ret; | |
272 | } | |
273 | ||
274 | static int config_list(int key, const void **data, const struct sr_dev_inst *sdi) | |
275 | { | |
276 | ||
277 | (void)sdi; | |
278 | ||
279 | switch (key) { | |
280 | default: | |
281 | return SR_ERR_ARG; | |
282 | } | |
283 | ||
284 | return SR_OK; | |
285 | } | |
286 | ||
287 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, | |
288 | void *cb_data) | |
289 | { | |
290 | /* TODO */ | |
291 | (void)sdi; | |
292 | (void)cb_data; | |
293 | ||
294 | return SR_OK; | |
295 | } | |
296 | ||
297 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
298 | { | |
299 | (void)cb_data; | |
300 | ||
301 | if (sdi->status != SR_ST_ACTIVE) { | |
302 | sr_err("Device inactive, can't stop acquisition."); | |
303 | return SR_ERR; | |
304 | } | |
305 | ||
306 | /* TODO */ | |
307 | ||
308 | return SR_OK; | |
309 | } | |
310 | ||
311 | SR_PRIV struct sr_dev_driver nexus_osciprime_driver_info = { | |
312 | .name = "nexus-osciprime", | |
313 | .longname = "Nexus OsciPrime", | |
314 | .api_version = 1, | |
315 | .init = hw_init, | |
316 | .cleanup = hw_cleanup, | |
317 | .scan = hw_scan, | |
318 | .dev_list = hw_dev_list, | |
319 | .dev_clear = clear_instances, | |
320 | .config_get = NULL, | |
321 | .config_set = config_set, | |
322 | .config_list = config_list, | |
323 | .dev_open = hw_dev_open, | |
324 | .dev_close = hw_dev_close, | |
325 | .dev_acquisition_start = hw_dev_acquisition_start, | |
326 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
327 | .priv = NULL, | |
328 | }; |