]>
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 | ||
df035528 | 20 | #include <string.h> |
ed759a08 BV |
21 | #include "protocol.h" |
22 | ||
df035528 BV |
23 | extern struct sr_dev_driver kecheng_kc_330b_driver_info; |
24 | static struct sr_dev_driver *di = &kecheng_kc_330b_driver_info; | |
25 | extern const uint64_t kecheng_kc_330b_sample_intervals[][2]; | |
26 | ||
bc7be4a9 | 27 | SR_PRIV int kecheng_kc_330b_handle_events(int fd, int revents, void *cb_data) |
ed759a08 | 28 | { |
df035528 | 29 | struct drv_context *drvc; |
bc7be4a9 | 30 | struct dev_context *devc; |
df035528 BV |
31 | struct sr_datafeed_packet packet; |
32 | struct sr_dev_inst *sdi; | |
33 | struct sr_usb_dev_inst *usb; | |
bc7be4a9 | 34 | struct timeval tv; |
df035528 BV |
35 | const uint64_t *intv_entry; |
36 | gint64 now, interval; | |
37 | int len, ret, i; | |
38 | unsigned char cmd; | |
bc7be4a9 | 39 | |
ed759a08 | 40 | (void)fd; |
bc7be4a9 | 41 | (void)revents; |
ed759a08 | 42 | |
df035528 | 43 | drvc = di->priv; |
bc7be4a9 BV |
44 | sdi = cb_data; |
45 | devc = sdi->priv; | |
df035528 | 46 | usb = sdi->conn; |
bc7be4a9 | 47 | |
df035528 BV |
48 | memset(&tv, 0, sizeof(struct timeval)); |
49 | libusb_handle_events_timeout_completed(drvc->sr_ctx->libusb_ctx, &tv, | |
50 | NULL); | |
51 | ||
52 | if (sdi->status == SR_ST_STOPPING) { | |
53 | libusb_free_transfer(devc->xfer); | |
54 | for (i = 0; devc->usbfd[i] != -1; i++) | |
55 | sr_source_remove(devc->usbfd[i]); | |
56 | packet.type = SR_DF_END; | |
57 | sr_session_send(cb_data, &packet); | |
58 | sdi->status = SR_ST_ACTIVE; | |
59 | return TRUE; | |
60 | } | |
61 | ||
62 | if (devc->state == LIVE_SPL_IDLE) { | |
63 | now = g_get_monotonic_time() / 1000; | |
64 | intv_entry = kecheng_kc_330b_sample_intervals[devc->sample_interval]; | |
65 | interval = intv_entry[0] * 1000 / intv_entry[1]; | |
66 | if (now - devc->last_live_request > interval) { | |
67 | cmd = CMD_GET_LIVE_SPL; | |
68 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, &cmd, 1, &len, 5); | |
69 | if (ret != 0 || len != 1) { | |
70 | sr_dbg("Failed to request new acquisition: %s", | |
71 | libusb_error_name(ret)); | |
72 | sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi, | |
73 | devc->cb_data); | |
74 | return TRUE; | |
75 | } | |
76 | libusb_submit_transfer(devc->xfer); | |
77 | devc->last_live_request = now; | |
78 | devc->state = LIVE_SPL_WAIT; | |
79 | } | |
80 | } | |
bc7be4a9 BV |
81 | |
82 | return TRUE; | |
83 | } | |
84 | ||
df035528 BV |
85 | static void send_data(const struct sr_dev_inst *sdi, void *buf, unsigned int buf_len) |
86 | { | |
87 | struct dev_context *devc; | |
88 | struct sr_datafeed_packet packet; | |
89 | struct sr_datafeed_analog analog; | |
90 | ||
91 | devc = sdi->priv; | |
92 | ||
93 | memset(&analog, 0, sizeof(struct sr_datafeed_analog)); | |
94 | analog.mq = SR_MQ_SOUND_PRESSURE_LEVEL; | |
95 | analog.mqflags = devc->mqflags; | |
96 | analog.unit = SR_UNIT_DECIBEL_SPL; | |
97 | analog.probes = sdi->probes; | |
98 | analog.num_samples = buf_len; | |
99 | analog.data = buf; | |
100 | packet.type = SR_DF_ANALOG; | |
101 | packet.payload = &analog; | |
102 | sr_session_send(devc->cb_data, &packet); | |
103 | ||
104 | } | |
105 | ||
106 | SR_PRIV void kecheng_kc_330b_receive_transfer(struct libusb_transfer *transfer) | |
107 | { | |
108 | struct dev_context *devc; | |
109 | struct sr_dev_inst *sdi; | |
110 | float fvalue; | |
111 | int packet_has_error; | |
112 | ||
113 | sdi = transfer->user_data; | |
114 | devc = sdi->priv; | |
115 | ||
116 | packet_has_error = FALSE; | |
117 | switch (transfer->status) { | |
118 | case LIBUSB_TRANSFER_NO_DEVICE: | |
119 | /* USB device was unplugged. */ | |
120 | sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi, | |
121 | devc->cb_data); | |
122 | return; | |
123 | case LIBUSB_TRANSFER_COMPLETED: | |
124 | case LIBUSB_TRANSFER_TIMED_OUT: /* We may have received some data though */ | |
125 | break; | |
126 | default: | |
127 | packet_has_error = TRUE; | |
128 | break; | |
129 | } | |
130 | ||
131 | if (!packet_has_error) { | |
132 | if (devc->state == LIVE_SPL_WAIT) { | |
133 | if (transfer->actual_length != 3 || transfer->buffer[0] != 0x88) { | |
134 | sr_dbg("Received invalid SPL packet."); | |
135 | } else { | |
136 | fvalue = ((transfer->buffer[1] << 8) + transfer->buffer[2]) / 10.0; | |
137 | send_data(sdi, &fvalue, 1); | |
138 | devc->num_samples++; | |
139 | if (devc->limit_samples && devc->num_samples >= devc->limit_samples) | |
140 | sdi->driver->dev_acquisition_stop((struct sr_dev_inst *)sdi, | |
141 | devc->cb_data); | |
142 | ||
143 | /* let USB event handler fire off another | |
144 | * request when the time is right. */ | |
145 | devc->state = LIVE_SPL_IDLE; | |
146 | } | |
147 | } | |
148 | } | |
149 | ||
150 | ||
151 | } | |
152 | ||
bc7be4a9 BV |
153 | SR_PRIV int kecheng_kc_330b_configure(const struct sr_dev_inst *sdi) |
154 | { | |
ed759a08 | 155 | struct dev_context *devc; |
bc7be4a9 BV |
156 | struct sr_usb_dev_inst *usb; |
157 | int len, ret; | |
158 | unsigned char buf[7]; | |
ed759a08 | 159 | |
bc7be4a9 | 160 | sr_dbg("Configuring device."); |
ed759a08 | 161 | |
bc7be4a9 BV |
162 | usb = sdi->conn; |
163 | devc = sdi->priv; | |
ed759a08 | 164 | |
bc7be4a9 BV |
165 | buf[0] = CMD_CONFIGURE; |
166 | buf[1] = devc->sample_interval; | |
167 | buf[2] = devc->alarm_low; | |
168 | buf[3] = devc->alarm_high; | |
169 | buf[4] = devc->mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F ? 0 : 1; | |
170 | buf[5] = devc->mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A ? 0 : 1; | |
171 | buf[6] = devc->data_source; | |
172 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, buf, 7, &len, 5); | |
173 | if (ret != 0 || len != 7) { | |
174 | sr_dbg("Failed to configure device: %s", libusb_error_name(ret)); | |
175 | return SR_ERR; | |
ed759a08 BV |
176 | } |
177 | ||
bc7be4a9 BV |
178 | /* The configure command ack takes about 32ms to come in. */ |
179 | ret = libusb_bulk_transfer(usb->devhdl, EP_IN, buf, 1, &len, 40); | |
180 | if (ret != 0 || len != 1) { | |
181 | sr_dbg("Failed to configure device (no ack): %s", libusb_error_name(ret)); | |
182 | return SR_ERR; | |
183 | } | |
184 | if (buf[0] != (CMD_CONFIGURE | 0x80)) { | |
185 | sr_dbg("Failed to configure device: invalid response 0x%2.x", buf[0]); | |
186 | return SR_ERR; | |
187 | } | |
188 | ||
189 | return SR_OK; | |
190 | } | |
191 | ||
192 | SR_PRIV int kecheng_kc_330b_set_date_time(struct sr_dev_inst *sdi) | |
193 | { | |
194 | struct sr_usb_dev_inst *usb; | |
195 | GDateTime *dt; | |
196 | int len, ret; | |
197 | unsigned char buf[7]; | |
198 | ||
199 | sr_dbg("Setting device date/time."); | |
200 | ||
201 | usb = sdi->conn; | |
202 | ||
203 | dt = g_date_time_new_now_local(); | |
204 | buf[0] = CMD_SET_DATE_TIME; | |
205 | buf[1] = g_date_time_get_year(dt) - 2000; | |
206 | buf[2] = g_date_time_get_month(dt); | |
207 | buf[3] = g_date_time_get_day_of_month(dt); | |
208 | buf[4] = g_date_time_get_hour(dt); | |
209 | buf[5] = g_date_time_get_minute(dt); | |
210 | buf[6] = g_date_time_get_second(dt); | |
211 | g_date_time_unref(dt); | |
212 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, buf, 7, &len, 5); | |
213 | if (ret != 0 || len != 7) { | |
214 | sr_dbg("Failed to set date/time: %s", libusb_error_name(ret)); | |
215 | return SR_ERR; | |
216 | } | |
217 | ||
218 | ret = libusb_bulk_transfer(usb->devhdl, EP_IN, buf, 1, &len, 10); | |
219 | if (ret != 0 || len != 1) { | |
220 | sr_dbg("Failed to set date/time (no ack): %s", libusb_error_name(ret)); | |
221 | return SR_ERR; | |
222 | } | |
223 | if (buf[0] != (CMD_SET_DATE_TIME | 0x80)) { | |
224 | sr_dbg("Failed to set date/time: invalid response 0x%2.x", buf[0]); | |
225 | return SR_ERR; | |
226 | } | |
227 | ||
f336618c BV |
228 | return SR_OK; |
229 | } | |
230 | ||
231 | SR_PRIV int kecheng_kc_330b_status_get(const struct sr_dev_inst *sdi, | |
232 | int *status) | |
233 | { | |
234 | struct sr_usb_dev_inst *usb; | |
235 | int len, ret; | |
236 | unsigned char buf; | |
237 | ||
238 | sr_dbg("Getting device status."); | |
239 | ||
240 | usb = sdi->conn; | |
241 | buf = CMD_GET_STATUS; | |
242 | ret = libusb_bulk_transfer(usb->devhdl, EP_OUT, &buf, 1, &len, 5); | |
243 | if (ret != 0 || len != 1) { | |
244 | sr_dbg("Failed to get status: %s", libusb_error_name(ret)); | |
245 | return SR_ERR; | |
246 | } | |
247 | ||
248 | ret = libusb_bulk_transfer(usb->devhdl, EP_IN, &buf, 1, &len, 10); | |
249 | if (ret != 0 || len != 1) { | |
250 | sr_dbg("Failed to get status (no ack): %s", libusb_error_name(ret)); | |
251 | return SR_ERR; | |
252 | } | |
253 | /* Need either 0x84 or 0xa4. */ | |
254 | if (buf != (CMD_GET_STATUS | 0x80) && buf != (CMD_GET_STATUS | 0xa0)) { | |
255 | sr_dbg("Failed to get status: invalid response 0x%2.x", buf); | |
256 | return SR_ERR; | |
257 | } | |
bc7be4a9 | 258 | |
f336618c BV |
259 | if (buf & 0x20) |
260 | *status = DEVICE_INACTIVE; | |
261 | else | |
262 | *status = DEVICE_ACTIVE; | |
bc7be4a9 BV |
263 | |
264 | return SR_OK; | |
265 | } | |
266 | ||
267 | SR_PRIV int kecheng_kc_330b_recording_get(const struct sr_dev_inst *sdi, | |
268 | gboolean *tmp) | |
269 | { | |
270 | ||
271 | return SR_OK; | |
ed759a08 | 272 | } |