2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
5 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include <glib/gstdio.h>
29 * This should be larger than the FPGA bitstream image so that it'll get
30 * uploaded in one big operation. There seem to be issues when uploading
33 #define FW_BUFSIZE (1024 * 1024)
35 #define FPGA_UPLOAD_DELAY (10 * 1000)
37 #define USB_TIMEOUT (3 * 1000)
39 SR_PRIV int dslogic_fpga_firmware_upload(const struct sr_dev_inst *sdi,
43 struct sr_resource bitstream;
44 struct drv_context *drvc;
45 struct sr_usb_dev_inst *usb;
52 drvc = sdi->driver->context;
55 sr_dbg("Uploading FPGA firmware '%s'.", name);
57 result = sr_resource_open(drvc->sr_ctx, &bitstream,
58 SR_RESOURCE_FIRMWARE, name);
62 /* Tell the device firmware is coming. */
63 memset(cmd, 0, sizeof(cmd));
64 if ((ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
65 LIBUSB_ENDPOINT_OUT, DS_CMD_FPGA_FW, 0x0000, 0x0000,
66 (unsigned char *)&cmd, sizeof(cmd), USB_TIMEOUT)) < 0) {
67 sr_err("Failed to upload FPGA firmware: %s.", libusb_error_name(ret));
68 sr_resource_close(drvc->sr_ctx, &bitstream);
72 /* Give the FX2 time to get ready for FPGA firmware upload. */
73 g_usleep(FPGA_UPLOAD_DELAY);
75 buf = g_malloc(FW_BUFSIZE);
79 chunksize = sr_resource_read(drvc->sr_ctx, &bitstream,
86 if ((ret = libusb_bulk_transfer(usb->devhdl, 2 | LIBUSB_ENDPOINT_OUT,
87 buf, chunksize, &transferred, USB_TIMEOUT)) < 0) {
88 sr_err("Unable to configure FPGA firmware: %s.",
89 libusb_error_name(ret));
94 sr_spew("Uploaded %" PRIu64 "/%" PRIu64 " bytes.",
97 if (transferred != chunksize) {
98 sr_err("Short transfer while uploading FPGA firmware.");
104 sr_resource_close(drvc->sr_ctx, &bitstream);
107 sr_dbg("FPGA firmware upload done.");
112 SR_PRIV int dslogic_start_acquisition(const struct sr_dev_inst *sdi)
114 struct dev_context *devc;
115 struct sr_usb_dev_inst *usb;
116 struct dslogic_mode mode;
120 mode.flags = DS_START_FLAGS_MODE_LA;
121 mode.sample_delay_h = mode.sample_delay_l = 0;
122 if (devc->sample_wide)
123 mode.flags |= DS_START_FLAGS_SAMPLE_WIDE;
126 ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
127 LIBUSB_ENDPOINT_OUT, DS_CMD_START, 0x0000, 0x0000,
128 (unsigned char *)&mode, sizeof(mode), USB_TIMEOUT);
130 sr_err("Failed to send start command: %s.", libusb_error_name(ret));
137 SR_PRIV int dslogic_stop_acquisition(const struct sr_dev_inst *sdi)
139 struct sr_usb_dev_inst *usb;
140 struct dslogic_mode mode;
143 mode.flags = DS_START_FLAGS_STOP;
144 mode.sample_delay_h = mode.sample_delay_l = 0;
147 ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
148 LIBUSB_ENDPOINT_OUT, DS_CMD_START, 0x0000, 0x0000,
149 (unsigned char *)&mode, sizeof(struct dslogic_mode), USB_TIMEOUT);
151 sr_err("Failed to send stop command: %s.", libusb_error_name(ret));
159 * Get the session trigger and configure the FPGA structure
162 static int dslogic_set_trigger(const struct sr_dev_inst *sdi,
163 struct dslogic_fpga_config *cfg)
165 struct sr_trigger *trigger;
166 struct sr_trigger_stage *stage;
167 struct sr_trigger_match *match;
168 struct dev_context *devc;
170 int channelbit, i = 0;
174 devc->trigger_en = FALSE;
176 cfg->trig_mask0[0] = 0xffff;
177 cfg->trig_mask1[0] = 0xffff;
179 cfg->trig_value0[0] = 0;
180 cfg->trig_value1[0] = 0;
182 cfg->trig_edge0[0] = 0;
183 cfg->trig_edge1[0] = 0;
185 cfg->trig_logic0[0] = 0;
186 cfg->trig_logic1[0] = 0;
188 cfg->trig_count0[0] = 0;
189 cfg->trig_count1[0] = 0;
191 if (!(trigger = sr_session_trigger_get(sdi->session)))
194 for (l = trigger->stages; l; l = l->next) {
196 for (m = stage->matches; m; m = m->next) {
198 if (!match->channel->enabled)
199 /* Ignore disabled channels with a trigger. */
201 channelbit = 1 << (match->channel->index);
202 devc->trigger_en = TRUE; /* Triggered. */
203 /* Simple trigger support (event). */
204 if (match->match == SR_TRIGGER_ONE) {
205 cfg->trig_mask0[0] &= ~channelbit;
206 cfg->trig_mask1[0] &= ~channelbit;
207 cfg->trig_value0[0] |= channelbit;
208 cfg->trig_value1[0] |= channelbit;
209 } else if (match->match == SR_TRIGGER_ZERO) {
210 cfg->trig_mask0[0] &= ~channelbit;
211 cfg->trig_mask1[0] &= ~channelbit;
212 } else if (match->match == SR_TRIGGER_FALLING) {
213 cfg->trig_mask0[0] &= ~channelbit;
214 cfg->trig_mask1[0] &= ~channelbit;
215 cfg->trig_edge0[0] |= channelbit;
216 cfg->trig_edge1[0] |= channelbit;
217 } else if (match->match == SR_TRIGGER_RISING) {
218 cfg->trig_mask0[0] &= ~channelbit;
219 cfg->trig_mask1[0] &= ~channelbit;
220 cfg->trig_value0[0] |= channelbit;
221 cfg->trig_value1[0] |= channelbit;
222 cfg->trig_edge0[0] |= channelbit;
223 cfg->trig_edge1[0] |= channelbit;
224 } else if (match->match == SR_TRIGGER_EDGE){
225 cfg->trig_edge0[0] |= channelbit;
226 cfg->trig_edge1[0] |= channelbit;
231 if (devc->trigger_en) {
232 for (i = 1; i < 16; i++) {
233 cfg->trig_mask0[i] = 0xff;
234 cfg->trig_mask1[i] = 0xff;
235 cfg->trig_value0[i] = 0;
236 cfg->trig_value1[i] = 0;
237 cfg->trig_edge0[i] = 0;
238 cfg->trig_edge1[i] = 0;
239 cfg->trig_count0[i] = 0;
240 cfg->trig_count1[i] = 0;
241 cfg->trig_logic0[i] = 2;
242 cfg->trig_logic1[i] = 2;
244 v16 = RL16(&cfg->mode);
246 WL16(&cfg->mode, v16);
252 SR_PRIV int dslogic_fpga_configure(const struct sr_dev_inst *sdi)
254 struct dev_context *devc;
255 struct sr_usb_dev_inst *usb;
257 struct dslogic_fpga_config cfg;
260 int transferred, len, ret;
262 sr_dbg("Configuring FPGA.");
266 WL32(&cfg.sync, DS_CFG_START);
267 WL16(&cfg.mode_header, DS_CFG_MODE);
268 WL32(&cfg.divider_header, DS_CFG_DIVIDER);
269 WL32(&cfg.count_header, DS_CFG_COUNT);
270 WL32(&cfg.trig_pos_header, DS_CFG_TRIG_POS);
271 WL16(&cfg.trig_glb_header, DS_CFG_TRIG_GLB);
272 WL32(&cfg.trig_adp_header, DS_CFG_TRIG_ADP);
273 WL32(&cfg.trig_sda_header, DS_CFG_TRIG_SDA);
274 WL32(&cfg.trig_mask0_header, DS_CFG_TRIG_MASK0);
275 WL32(&cfg.trig_mask1_header, DS_CFG_TRIG_MASK1);
276 WL32(&cfg.trig_value0_header, DS_CFG_TRIG_VALUE0);
277 WL32(&cfg.trig_value1_header, DS_CFG_TRIG_VALUE1);
278 WL32(&cfg.trig_edge0_header, DS_CFG_TRIG_EDGE0);
279 WL32(&cfg.trig_edge1_header, DS_CFG_TRIG_EDGE1);
280 WL32(&cfg.trig_count0_header, DS_CFG_TRIG_COUNT0);
281 WL32(&cfg.trig_count1_header, DS_CFG_TRIG_COUNT1);
282 WL32(&cfg.trig_logic0_header, DS_CFG_TRIG_LOGIC0);
283 WL32(&cfg.trig_logic1_header, DS_CFG_TRIG_LOGIC1);
284 WL32(&cfg.end_sync, DS_CFG_END);
286 /* Pass in the length of a fixed-size struct. Really. */
287 len = sizeof(struct dslogic_fpga_config) / 2;
289 c[1] = (len >> 8) & 0xff;
290 c[2] = (len >> 16) & 0xff;
292 ret = libusb_control_transfer(usb->devhdl, LIBUSB_REQUEST_TYPE_VENDOR |
293 LIBUSB_ENDPOINT_OUT, DS_CMD_CONFIG, 0x0000, 0x0000,
296 sr_err("Failed to send FPGA configure command: %s.", libusb_error_name(ret));
301 * 15 1 = internal test mode
302 * 14 1 = external test mode
303 * 13 1 = loopback test mode
305 * 11 1 = serial trigger
308 * 6 1 = samplerate 400MHz
309 * 5 1 = samplerate 200MHz or analog mode
310 * 4 0 = logic, 1 = dso or analog
312 * 1 0 = internal clock, 1 = external clock
313 * 0 1 = trigger enabled
316 if (devc->dslogic_mode == DS_OP_INTERNAL_TEST)
318 else if (devc->dslogic_mode == DS_OP_EXTERNAL_TEST)
320 else if (devc->dslogic_mode == DS_OP_LOOPBACK_TEST)
322 //if (devc->dslogic_external_clock)
325 WL16(&cfg.mode, v16);
326 v32 = ceil(SR_MHZ(100) * 1.0 / devc->cur_samplerate);
327 WL32(&cfg.divider, v32);
328 WL32(&cfg.count, devc->limit_samples);
330 dslogic_set_trigger(sdi, &cfg);
332 len = sizeof(struct dslogic_fpga_config);
333 ret = libusb_bulk_transfer(usb->devhdl, 2 | LIBUSB_ENDPOINT_OUT,
334 (unsigned char *)&cfg, len, &transferred, USB_TIMEOUT);
335 if (ret < 0 || transferred != len) {
336 sr_err("Failed to send FPGA configuration: %s.", libusb_error_name(ret));