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fdf4a1f5 UH |
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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
6ec6c43b | 21 | #include <config.h> |
fdf4a1f5 UH |
22 | #include "protocol.h" |
23 | ||
ab4bb6eb UH |
24 | #define USB_VENDOR_ID 0x0403 |
25 | #define USB_DEVICE_ID 0x6014 | |
ce95428c | 26 | #define USB_VENDOR_NAME "IKALOGIC" |
ab4bb6eb UH |
27 | #define USB_MODEL_NAME "ScanaPLUS" |
28 | #define USB_IPRODUCT "SCANAPLUS" | |
29 | ||
30 | #define SAMPLE_BUF_SIZE (8 * 1024 * 1024) | |
31 | ||
f254bc4b | 32 | static const uint32_t devopts[] = { |
ab4bb6eb | 33 | SR_CONF_LOGIC_ANALYZER, |
5827f61b BV |
34 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET, |
35 | SR_CONF_LIMIT_MSEC | SR_CONF_SET, | |
36 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
ab4bb6eb UH |
37 | }; |
38 | ||
ba7dd8bb UH |
39 | /* Channels are numbered 1-9. */ |
40 | static const char *channel_names[] = { | |
ab4bb6eb | 41 | "1", "2", "3", "4", "5", "6", "7", "8", "9", |
ab4bb6eb UH |
42 | }; |
43 | ||
ce95428c | 44 | /* Note: The IKALOGIC ScanaPLUS always samples at 100MHz. */ |
329733d9 | 45 | static const uint64_t samplerates[1] = { SR_MHZ(100) }; |
ab4bb6eb | 46 | |
695dc859 | 47 | static int dev_acquisition_stop(struct sr_dev_inst *sdi); |
ab4bb6eb UH |
48 | |
49 | static void clear_helper(void *priv) | |
50 | { | |
51 | struct dev_context *devc; | |
52 | ||
53 | devc = priv; | |
54 | ||
55 | ftdi_free(devc->ftdic); | |
56 | g_free(devc->compressed_buf); | |
57 | g_free(devc->sample_buf); | |
f817f05a | 58 | g_free(devc); |
ab4bb6eb UH |
59 | } |
60 | ||
4f840ce9 | 61 | static int dev_clear(const struct sr_dev_driver *di) |
ab4bb6eb UH |
62 | { |
63 | return std_dev_clear(di, clear_helper); | |
64 | } | |
65 | ||
4f840ce9 | 66 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
fdf4a1f5 | 67 | { |
ab4bb6eb | 68 | struct sr_dev_inst *sdi; |
fdf4a1f5 | 69 | struct drv_context *drvc; |
ab4bb6eb | 70 | struct dev_context *devc; |
fdf4a1f5 | 71 | GSList *devices; |
ab4bb6eb UH |
72 | unsigned int i; |
73 | int ret; | |
fdf4a1f5 UH |
74 | |
75 | (void)options; | |
76 | ||
41812aca | 77 | drvc = di->context; |
ab4bb6eb UH |
78 | |
79 | devices = NULL; | |
80 | ||
81 | /* Allocate memory for our private device context. */ | |
f57d8ffe | 82 | devc = g_malloc0(sizeof(struct dev_context)); |
ab4bb6eb UH |
83 | |
84 | /* Allocate memory for the incoming compressed samples. */ | |
85 | if (!(devc->compressed_buf = g_try_malloc0(COMPRESSED_BUF_SIZE))) { | |
86 | sr_err("compressed_buf malloc failed."); | |
87 | goto err_free_devc; | |
88 | } | |
89 | ||
90 | /* Allocate memory for the uncompressed samples. */ | |
91 | if (!(devc->sample_buf = g_try_malloc0(SAMPLE_BUF_SIZE))) { | |
92 | sr_err("sample_buf malloc failed."); | |
93 | goto err_free_compressed_buf; | |
94 | } | |
95 | ||
96 | /* Allocate memory for the FTDI context (ftdic) and initialize it. */ | |
97 | if (!(devc->ftdic = ftdi_new())) { | |
98 | sr_err("Failed to initialize libftdi."); | |
99 | goto err_free_sample_buf; | |
100 | } | |
101 | ||
102 | /* Check for the device and temporarily open it. */ | |
103 | ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID, | |
104 | USB_IPRODUCT, NULL); | |
105 | if (ret < 0) { | |
106 | /* Log errors, except for -3 ("device not found"). */ | |
107 | if (ret != -3) | |
108 | sr_err("Failed to open device (%d): %s", ret, | |
109 | ftdi_get_error_string(devc->ftdic)); | |
110 | goto err_free_ftdic; | |
111 | } | |
112 | ||
113 | /* Register the device with libsigrok. */ | |
aac29cc1 | 114 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
45884333 | 115 | sdi->status = SR_ST_INACTIVE; |
0af636be UH |
116 | sdi->vendor = g_strdup(USB_VENDOR_NAME); |
117 | sdi->model = g_strdup(USB_MODEL_NAME); | |
ab4bb6eb UH |
118 | sdi->driver = di; |
119 | sdi->priv = devc; | |
120 | ||
0f34cb47 UH |
121 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) |
122 | sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]); | |
ab4bb6eb UH |
123 | |
124 | devices = g_slist_append(devices, sdi); | |
125 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
126 | ||
127 | /* Close device. We'll reopen it again when we need it. */ | |
128 | scanaplus_close(devc); | |
fdf4a1f5 UH |
129 | |
130 | return devices; | |
ab4bb6eb | 131 | |
ab4bb6eb UH |
132 | scanaplus_close(devc); |
133 | err_free_ftdic: | |
134 | ftdi_free(devc->ftdic); /* NOT free() or g_free()! */ | |
135 | err_free_sample_buf: | |
136 | g_free(devc->sample_buf); | |
137 | err_free_compressed_buf: | |
138 | g_free(devc->compressed_buf); | |
139 | err_free_devc: | |
140 | g_free(devc); | |
ab4bb6eb UH |
141 | |
142 | return NULL; | |
fdf4a1f5 UH |
143 | } |
144 | ||
fdf4a1f5 UH |
145 | static int dev_open(struct sr_dev_inst *sdi) |
146 | { | |
ab4bb6eb UH |
147 | struct dev_context *devc; |
148 | int ret; | |
149 | ||
150 | devc = sdi->priv; | |
151 | ||
152 | /* Select interface A, otherwise communication will fail. */ | |
153 | ret = ftdi_set_interface(devc->ftdic, INTERFACE_A); | |
154 | if (ret < 0) { | |
155 | sr_err("Failed to set FTDI interface A (%d): %s", ret, | |
156 | ftdi_get_error_string(devc->ftdic)); | |
157 | return SR_ERR; | |
158 | } | |
159 | sr_dbg("FTDI chip interface A set successfully."); | |
160 | ||
161 | /* Open the device. */ | |
162 | ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID, | |
163 | USB_IPRODUCT, NULL); | |
164 | if (ret < 0) { | |
165 | sr_err("Failed to open device (%d): %s", ret, | |
166 | ftdi_get_error_string(devc->ftdic)); | |
167 | return SR_ERR; | |
168 | } | |
169 | sr_dbg("FTDI device opened successfully."); | |
170 | ||
171 | /* Purge RX/TX buffers in the FTDI chip. */ | |
172 | if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) { | |
173 | sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.", | |
174 | ret, ftdi_get_error_string(devc->ftdic)); | |
175 | goto err_dev_open_close_ftdic; | |
176 | } | |
177 | sr_dbg("FTDI chip buffers purged successfully."); | |
178 | ||
179 | /* Reset the FTDI bitmode. */ | |
180 | ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET); | |
181 | if (ret < 0) { | |
182 | sr_err("Failed to reset the FTDI chip bitmode (%d): %s.", | |
183 | ret, ftdi_get_error_string(devc->ftdic)); | |
184 | goto err_dev_open_close_ftdic; | |
185 | } | |
186 | sr_dbg("FTDI chip bitmode reset successfully."); | |
187 | ||
188 | /* Set FTDI bitmode to "sync FIFO". */ | |
189 | ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_SYNCFF); | |
190 | if (ret < 0) { | |
191 | sr_err("Failed to put FTDI chip into sync FIFO mode (%d): %s.", | |
192 | ret, ftdi_get_error_string(devc->ftdic)); | |
193 | goto err_dev_open_close_ftdic; | |
194 | } | |
195 | sr_dbg("FTDI chip sync FIFO mode entered successfully."); | |
196 | ||
197 | /* Set the FTDI latency timer to 2. */ | |
198 | ret = ftdi_set_latency_timer(devc->ftdic, 2); | |
199 | if (ret < 0) { | |
200 | sr_err("Failed to set FTDI latency timer (%d): %s.", | |
201 | ret, ftdi_get_error_string(devc->ftdic)); | |
202 | goto err_dev_open_close_ftdic; | |
203 | } | |
204 | sr_dbg("FTDI chip latency timer set successfully."); | |
205 | ||
206 | /* Set the FTDI read data chunk size to 64kB. */ | |
207 | ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024); | |
208 | if (ret < 0) { | |
209 | sr_err("Failed to set FTDI read data chunk size (%d): %s.", | |
210 | ret, ftdi_get_error_string(devc->ftdic)); | |
211 | goto err_dev_open_close_ftdic; | |
212 | } | |
213 | sr_dbg("FTDI chip read data chunk size set successfully."); | |
214 | ||
215 | /* Get the ScanaPLUS device ID from the FTDI EEPROM. */ | |
216 | if ((ret = scanaplus_get_device_id(devc)) < 0) { | |
217 | sr_err("Failed to get ScanaPLUS device ID: %d.", ret); | |
218 | goto err_dev_open_close_ftdic; | |
219 | } | |
220 | sr_dbg("Received ScanaPLUS device ID successfully: %02x %02x %02x.", | |
221 | devc->devid[0], devc->devid[1], devc->devid[2]); | |
fdf4a1f5 UH |
222 | |
223 | sdi->status = SR_ST_ACTIVE; | |
224 | ||
225 | return SR_OK; | |
ab4bb6eb UH |
226 | |
227 | err_dev_open_close_ftdic: | |
228 | scanaplus_close(devc); | |
229 | return SR_ERR; | |
fdf4a1f5 UH |
230 | } |
231 | ||
232 | static int dev_close(struct sr_dev_inst *sdi) | |
233 | { | |
ab4bb6eb UH |
234 | int ret; |
235 | struct dev_context *devc; | |
236 | ||
237 | ret = SR_OK; | |
238 | devc = sdi->priv; | |
239 | ||
240 | if (sdi->status == SR_ST_ACTIVE) { | |
241 | sr_dbg("Status ACTIVE, closing device."); | |
242 | ret = scanaplus_close(devc); | |
243 | } else { | |
244 | sr_spew("Status not ACTIVE, nothing to do."); | |
245 | } | |
fdf4a1f5 UH |
246 | |
247 | sdi->status = SR_ST_INACTIVE; | |
248 | ||
ab4bb6eb | 249 | return ret; |
fdf4a1f5 UH |
250 | } |
251 | ||
584560f1 | 252 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 253 | const struct sr_channel_group *cg) |
fdf4a1f5 | 254 | { |
fdf4a1f5 | 255 | (void)sdi; |
53b4680f | 256 | (void)cg; |
fdf4a1f5 | 257 | |
584560f1 | 258 | switch (key) { |
ab4bb6eb UH |
259 | case SR_CONF_SAMPLERATE: |
260 | /* The ScanaPLUS samplerate is 100MHz and can't be changed. */ | |
261 | *data = g_variant_new_uint64(SR_MHZ(100)); | |
262 | break; | |
fdf4a1f5 UH |
263 | default: |
264 | return SR_ERR_NA; | |
265 | } | |
266 | ||
ab4bb6eb | 267 | return SR_OK; |
fdf4a1f5 UH |
268 | } |
269 | ||
584560f1 | 270 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 271 | const struct sr_channel_group *cg) |
fdf4a1f5 | 272 | { |
ab4bb6eb | 273 | struct dev_context *devc; |
fdf4a1f5 | 274 | |
53b4680f | 275 | (void)cg; |
d3c74a6f | 276 | |
fdf4a1f5 UH |
277 | if (sdi->status != SR_ST_ACTIVE) |
278 | return SR_ERR_DEV_CLOSED; | |
279 | ||
ab4bb6eb UH |
280 | devc = sdi->priv; |
281 | ||
584560f1 | 282 | switch (key) { |
ab4bb6eb UH |
283 | case SR_CONF_SAMPLERATE: |
284 | if (g_variant_get_uint64(data) != SR_MHZ(100)) { | |
285 | sr_err("ScanaPLUS only supports samplerate = 100MHz."); | |
286 | return SR_ERR_ARG; | |
287 | } | |
288 | /* Nothing to do, the ScanaPLUS samplerate is always 100MHz. */ | |
289 | break; | |
290 | case SR_CONF_LIMIT_MSEC: | |
291 | if (g_variant_get_uint64(data) == 0) | |
292 | return SR_ERR_ARG; | |
293 | devc->limit_msec = g_variant_get_uint64(data); | |
294 | break; | |
295 | case SR_CONF_LIMIT_SAMPLES: | |
296 | if (g_variant_get_uint64(data) == 0) | |
297 | return SR_ERR_ARG; | |
298 | devc->limit_samples = g_variant_get_uint64(data); | |
299 | break; | |
fdf4a1f5 | 300 | default: |
ab4bb6eb | 301 | return SR_ERR_NA; |
fdf4a1f5 UH |
302 | } |
303 | ||
ab4bb6eb | 304 | return SR_OK; |
fdf4a1f5 UH |
305 | } |
306 | ||
584560f1 | 307 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 308 | const struct sr_channel_group *cg) |
fdf4a1f5 | 309 | { |
ab4bb6eb UH |
310 | GVariant *gvar; |
311 | GVariantBuilder gvb; | |
fdf4a1f5 UH |
312 | |
313 | (void)sdi; | |
53b4680f | 314 | (void)cg; |
fdf4a1f5 | 315 | |
fdf4a1f5 | 316 | switch (key) { |
ab4bb6eb | 317 | case SR_CONF_DEVICE_OPTIONS: |
584560f1 | 318 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
f254bc4b | 319 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); |
ab4bb6eb UH |
320 | break; |
321 | case SR_CONF_SAMPLERATE: | |
322 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
323 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
324 | samplerates, ARRAY_SIZE(samplerates), | |
325 | sizeof(uint64_t)); | |
326 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
327 | *data = g_variant_builder_end(&gvb); | |
328 | break; | |
fdf4a1f5 UH |
329 | default: |
330 | return SR_ERR_NA; | |
331 | } | |
332 | ||
ab4bb6eb | 333 | return SR_OK; |
fdf4a1f5 UH |
334 | } |
335 | ||
695dc859 | 336 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
fdf4a1f5 | 337 | { |
ab4bb6eb UH |
338 | int ret; |
339 | struct dev_context *devc; | |
fdf4a1f5 UH |
340 | |
341 | if (sdi->status != SR_ST_ACTIVE) | |
342 | return SR_ERR_DEV_CLOSED; | |
343 | ||
208c1d35 | 344 | devc = sdi->priv; |
ab4bb6eb UH |
345 | |
346 | if (!devc->ftdic) | |
347 | return SR_ERR_BUG; | |
348 | ||
ba7dd8bb | 349 | /* TODO: Configure channels later (thresholds etc.). */ |
ab4bb6eb | 350 | |
ab4bb6eb UH |
351 | /* Properly reset internal variables before every new acquisition. */ |
352 | devc->compressed_bytes_ignored = 0; | |
353 | devc->samples_sent = 0; | |
354 | devc->bytes_received = 0; | |
355 | ||
356 | if ((ret = scanaplus_init(devc)) < 0) | |
357 | return ret; | |
358 | ||
359 | if ((ret = scanaplus_start_acquisition(devc)) < 0) | |
360 | return ret; | |
361 | ||
102f1239 | 362 | std_session_send_df_header(sdi, LOG_PREFIX); |
ab4bb6eb UH |
363 | |
364 | /* Hook up a dummy handler to receive data from the device. */ | |
c650d3ec | 365 | sr_session_source_add(sdi->session, -1, 0, 0, scanaplus_receive_data, (void *)sdi); |
ab4bb6eb | 366 | |
fdf4a1f5 UH |
367 | return SR_OK; |
368 | } | |
369 | ||
695dc859 | 370 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
fdf4a1f5 | 371 | { |
ab4bb6eb | 372 | sr_dbg("Stopping acquisition."); |
102f1239 | 373 | sr_session_source_remove(sdi->session, -1); |
3be42bc2 | 374 | std_session_send_df_end(sdi, LOG_PREFIX); |
fdf4a1f5 UH |
375 | |
376 | return SR_OK; | |
377 | } | |
378 | ||
dd5c48a6 | 379 | static struct sr_dev_driver ikalogic_scanaplus_driver_info = { |
fdf4a1f5 | 380 | .name = "ikalogic-scanaplus", |
ce95428c | 381 | .longname = "IKALOGIC ScanaPLUS", |
fdf4a1f5 | 382 | .api_version = 1, |
c2fdcc25 | 383 | .init = std_init, |
700d6b64 | 384 | .cleanup = std_cleanup, |
fdf4a1f5 | 385 | .scan = scan, |
c01bf34c | 386 | .dev_list = std_dev_list, |
fdf4a1f5 UH |
387 | .dev_clear = dev_clear, |
388 | .config_get = config_get, | |
389 | .config_set = config_set, | |
390 | .config_list = config_list, | |
391 | .dev_open = dev_open, | |
392 | .dev_close = dev_close, | |
393 | .dev_acquisition_start = dev_acquisition_start, | |
394 | .dev_acquisition_stop = dev_acquisition_stop, | |
41812aca | 395 | .context = NULL, |
fdf4a1f5 | 396 | }; |
dd5c48a6 | 397 | SR_REGISTER_DEV_DRIVER(ikalogic_scanaplus_driver_info); |