]>
Commit | Line | Data |
---|---|---|
ed759a08 BV |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 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 "protocol.h" | |
21 | ||
a8806f03 BV |
22 | #define USB_CONN "1041.8101" |
23 | #define VENDOR "Kecheng" | |
24 | #define USB_INTERFACE 0 | |
25 | #define EP_IN 0x80 | 1 | |
26 | #define EP_OUT 2 | |
27 | ||
28 | static const int32_t hwcaps[] = { | |
29 | SR_CONF_SOUNDLEVELMETER, | |
30 | SR_CONF_LIMIT_SAMPLES, | |
31 | SR_CONF_CONTINUOUS, | |
32 | }; | |
33 | ||
ed759a08 BV |
34 | SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info; |
35 | static struct sr_dev_driver *di = &kecheng_kc_330b_driver_info; | |
36 | ||
37 | ||
38 | static int init(struct sr_context *sr_ctx) | |
39 | { | |
40 | return std_init(sr_ctx, di, LOG_PREFIX); | |
41 | } | |
42 | ||
a8806f03 BV |
43 | static int scan_kecheng(struct sr_usb_dev_inst *usb, char **model) |
44 | { | |
45 | struct drv_context *drvc; | |
46 | int len, ret; | |
47 | unsigned char cmd, buf[32]; | |
48 | ||
49 | drvc = di->priv; | |
50 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) | |
51 | return SR_ERR; | |
52 | ||
53 | cmd = CMD_IDENTIFY; | |
54 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, &cmd, 1, &len, 5); | |
55 | if (ret != 0) { | |
56 | libusb_close(usb->devhdl); | |
57 | sr_dbg("Failed to send Identify command: %s", libusb_error_name(ret)); | |
58 | return SR_ERR; | |
59 | } | |
60 | ||
61 | ret = libusb_bulk_transfer(usb->devhdl, EP_IN, buf, 32, &len, 10); | |
62 | if (ret != 0) { | |
63 | libusb_close(usb->devhdl); | |
64 | sr_dbg("Failed to receive response: %s", libusb_error_name(ret)); | |
65 | return SR_ERR; | |
66 | } | |
67 | ||
68 | libusb_close(usb->devhdl); | |
69 | usb->devhdl = NULL; | |
70 | ||
71 | if (len < 2 || buf[0] != (CMD_IDENTIFY | 0x80) || buf[1] > 30) { | |
72 | sr_dbg("Invalid response to Identify command"); | |
73 | return SR_ERR; | |
74 | } | |
75 | ||
76 | buf[buf[1] + 2] = '\x0'; | |
77 | *model = g_strndup((const gchar *)buf + 2, 30); | |
78 | //g_strstrip(*model); | |
79 | ||
80 | return SR_OK; | |
81 | } | |
82 | ||
ed759a08 BV |
83 | static GSList *scan(GSList *options) |
84 | { | |
85 | struct drv_context *drvc; | |
a8806f03 BV |
86 | struct dev_context *devc; |
87 | struct sr_dev_inst *sdi; | |
88 | struct sr_probe *probe; | |
89 | GSList *usb_devices, *devices, *l; | |
90 | char *model; | |
ed759a08 BV |
91 | |
92 | (void)options; | |
93 | ||
ed759a08 BV |
94 | drvc = di->priv; |
95 | drvc->instances = NULL; | |
96 | ||
a8806f03 BV |
97 | devices = NULL; |
98 | if ((usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, USB_CONN))) { | |
99 | /* We have a list of sr_usb_dev_inst matching the connection | |
100 | * string. Wrap them in sr_dev_inst and we're done. */ | |
101 | for (l = usb_devices; l; l = l->next) { | |
102 | if (scan_kecheng(l->data, &model) != SR_OK) | |
103 | continue; | |
104 | if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR, | |
105 | model, NULL))) | |
106 | return NULL; | |
107 | g_free(model); | |
108 | sdi->driver = di; | |
109 | sdi->inst_type = SR_INST_USB; | |
110 | sdi->conn = l->data; | |
111 | if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "SPL"))) | |
112 | return NULL; | |
113 | sdi->probes = g_slist_append(sdi->probes, probe); | |
114 | ||
115 | if (!(devc = g_try_malloc(sizeof(struct dev_context)))) { | |
116 | sr_dbg("Device context malloc failed."); | |
117 | return NULL; | |
118 | } | |
119 | sdi->priv = devc; | |
120 | devc->limit_samples = 0; | |
121 | ||
122 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
123 | devices = g_slist_append(devices, sdi); | |
124 | } | |
125 | g_slist_free(usb_devices); | |
126 | } else | |
127 | g_slist_free_full(usb_devices, g_free); | |
ed759a08 BV |
128 | |
129 | return devices; | |
130 | } | |
131 | ||
132 | static GSList *dev_list(void) | |
133 | { | |
134 | struct drv_context *drvc; | |
135 | ||
136 | drvc = di->priv; | |
137 | ||
138 | return drvc->instances; | |
139 | } | |
140 | ||
141 | static int dev_clear(void) | |
142 | { | |
143 | return std_dev_clear(di, NULL); | |
144 | } | |
145 | ||
146 | static int dev_open(struct sr_dev_inst *sdi) | |
147 | { | |
a8806f03 BV |
148 | struct drv_context *drvc; |
149 | struct sr_usb_dev_inst *usb; | |
150 | int ret; | |
151 | ||
152 | if (!(drvc = di->priv)) { | |
153 | sr_err("Driver was not initialized."); | |
154 | return SR_ERR; | |
155 | } | |
156 | ||
157 | usb = sdi->conn; | |
ed759a08 | 158 | |
a8806f03 BV |
159 | if (sr_usb_open(drvc->sr_ctx->libusb_ctx, usb) != SR_OK) |
160 | return SR_ERR; | |
ed759a08 | 161 | |
a8806f03 BV |
162 | if ((ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE))) { |
163 | sr_err("Failed to claim interface: %s.", libusb_error_name(ret)); | |
164 | return SR_ERR; | |
165 | } | |
ed759a08 BV |
166 | sdi->status = SR_ST_ACTIVE; |
167 | ||
a8806f03 | 168 | return ret; |
ed759a08 BV |
169 | } |
170 | ||
171 | static int dev_close(struct sr_dev_inst *sdi) | |
172 | { | |
a8806f03 BV |
173 | struct sr_usb_dev_inst *usb; |
174 | ||
175 | if (!di->priv) { | |
176 | sr_err("Driver was not initialized."); | |
177 | return SR_ERR; | |
178 | } | |
179 | ||
180 | usb = sdi->conn; | |
ed759a08 | 181 | |
a8806f03 BV |
182 | if (!usb->devhdl) |
183 | /* Nothing to do. */ | |
184 | return SR_OK; | |
ed759a08 | 185 | |
a8806f03 BV |
186 | libusb_release_interface(usb->devhdl, USB_INTERFACE); |
187 | libusb_close(usb->devhdl); | |
188 | usb->devhdl = NULL; | |
ed759a08 BV |
189 | sdi->status = SR_ST_INACTIVE; |
190 | ||
191 | return SR_OK; | |
192 | } | |
193 | ||
194 | static int cleanup(void) | |
195 | { | |
a8806f03 BV |
196 | int ret; |
197 | struct drv_context *drvc; | |
ed759a08 | 198 | |
a8806f03 BV |
199 | if (!(drvc = di->priv)) |
200 | /* Can get called on an unused driver, doesn't matter. */ | |
201 | return SR_OK; | |
ed759a08 | 202 | |
a8806f03 BV |
203 | ret = dev_clear(); |
204 | g_free(drvc); | |
205 | di->priv = NULL; | |
206 | ||
207 | return ret; | |
ed759a08 BV |
208 | } |
209 | ||
210 | static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
211 | { | |
a8806f03 | 212 | struct dev_context *devc; |
ed759a08 | 213 | |
a8806f03 | 214 | devc = sdi->priv; |
ed759a08 | 215 | switch (key) { |
a8806f03 BV |
216 | case SR_CONF_LIMIT_SAMPLES: |
217 | *data = g_variant_new_uint64(devc->limit_samples); | |
218 | break; | |
ed759a08 BV |
219 | default: |
220 | return SR_ERR_NA; | |
221 | } | |
222 | ||
a8806f03 | 223 | return SR_OK; |
ed759a08 BV |
224 | } |
225 | ||
226 | static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi) | |
227 | { | |
a8806f03 | 228 | struct dev_context *devc; |
ed759a08 BV |
229 | int ret; |
230 | ||
ed759a08 BV |
231 | if (sdi->status != SR_ST_ACTIVE) |
232 | return SR_ERR_DEV_CLOSED; | |
233 | ||
a8806f03 BV |
234 | if (!di->priv) { |
235 | sr_err("Driver was not initialized."); | |
236 | return SR_ERR; | |
237 | } | |
238 | ||
239 | devc = sdi->priv; | |
ed759a08 BV |
240 | ret = SR_OK; |
241 | switch (key) { | |
a8806f03 BV |
242 | case SR_CONF_LIMIT_SAMPLES: |
243 | devc->limit_samples = g_variant_get_uint64(data); | |
244 | sr_dbg("Setting sample limit to %" PRIu64 ".", | |
245 | devc->limit_samples); | |
246 | break; | |
ed759a08 BV |
247 | default: |
248 | ret = SR_ERR_NA; | |
249 | } | |
250 | ||
251 | return ret; | |
252 | } | |
253 | ||
254 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) | |
255 | { | |
ed759a08 BV |
256 | |
257 | (void)sdi; | |
ed759a08 | 258 | |
ed759a08 | 259 | switch (key) { |
a8806f03 BV |
260 | case SR_CONF_DEVICE_OPTIONS: |
261 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
262 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
263 | break; | |
ed759a08 BV |
264 | default: |
265 | return SR_ERR_NA; | |
266 | } | |
267 | ||
a8806f03 | 268 | return SR_OK; |
ed759a08 BV |
269 | } |
270 | ||
271 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
272 | void *cb_data) | |
273 | { | |
274 | (void)sdi; | |
275 | (void)cb_data; | |
276 | ||
277 | if (sdi->status != SR_ST_ACTIVE) | |
278 | return SR_ERR_DEV_CLOSED; | |
279 | ||
280 | /* TODO: configure hardware, reset acquisition state, set up | |
281 | * callbacks and send header packet. */ | |
282 | ||
283 | return SR_OK; | |
284 | } | |
285 | ||
286 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
287 | { | |
288 | (void)cb_data; | |
289 | ||
290 | if (sdi->status != SR_ST_ACTIVE) | |
291 | return SR_ERR_DEV_CLOSED; | |
292 | ||
293 | /* TODO: stop acquisition. */ | |
294 | ||
295 | return SR_OK; | |
296 | } | |
297 | ||
298 | SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info = { | |
299 | .name = "kecheng-kc-330b", | |
300 | .longname = "Kecheng KC-330B", | |
301 | .api_version = 1, | |
302 | .init = init, | |
303 | .cleanup = cleanup, | |
304 | .scan = scan, | |
305 | .dev_list = dev_list, | |
306 | .dev_clear = dev_clear, | |
307 | .config_get = config_get, | |
308 | .config_set = config_set, | |
309 | .config_list = config_list, | |
310 | .dev_open = dev_open, | |
311 | .dev_close = dev_close, | |
312 | .dev_acquisition_start = dev_acquisition_start, | |
313 | .dev_acquisition_stop = dev_acquisition_stop, | |
314 | .priv = NULL, | |
315 | }; |