2 * This file is part of the libsigrok project.
4 * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
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.
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.
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
23 #define USB_VENDOR_ID 0x0403
24 #define USB_DEVICE_ID 0x6014
25 #define USB_VENDOR_NAME "IKALOGIC"
26 #define USB_MODEL_NAME "ScanaPLUS"
27 #define USB_IPRODUCT "SCANAPLUS"
29 #define SAMPLE_BUF_SIZE (8 * 1024 * 1024)
31 static const uint32_t devopts[] = {
32 SR_CONF_LOGIC_ANALYZER,
33 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
34 SR_CONF_LIMIT_MSEC | SR_CONF_SET,
35 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
38 /* Channels are numbered 1-9. */
39 static const char *channel_names[] = {
40 "1", "2", "3", "4", "5", "6", "7", "8", "9",
44 /* Note: The IKALOGIC ScanaPLUS always samples at 100MHz. */
45 static const uint64_t samplerates[1] = { SR_MHZ(100) };
47 SR_PRIV struct sr_dev_driver ikalogic_scanaplus_driver_info;
49 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
51 static void clear_helper(void *priv)
53 struct dev_context *devc;
57 ftdi_free(devc->ftdic);
58 g_free(devc->compressed_buf);
59 g_free(devc->sample_buf);
63 static int dev_clear(const struct sr_dev_driver *di)
65 return std_dev_clear(di, clear_helper);
68 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
70 return std_init(sr_ctx, di, LOG_PREFIX);
73 static GSList *scan(struct sr_dev_driver *di, GSList *options)
75 struct sr_dev_inst *sdi;
76 struct drv_context *drvc;
77 struct dev_context *devc;
88 /* Allocate memory for our private device context. */
89 devc = g_malloc0(sizeof(struct dev_context));
91 /* Allocate memory for the incoming compressed samples. */
92 if (!(devc->compressed_buf = g_try_malloc0(COMPRESSED_BUF_SIZE))) {
93 sr_err("compressed_buf malloc failed.");
97 /* Allocate memory for the uncompressed samples. */
98 if (!(devc->sample_buf = g_try_malloc0(SAMPLE_BUF_SIZE))) {
99 sr_err("sample_buf malloc failed.");
100 goto err_free_compressed_buf;
103 /* Allocate memory for the FTDI context (ftdic) and initialize it. */
104 if (!(devc->ftdic = ftdi_new())) {
105 sr_err("Failed to initialize libftdi.");
106 goto err_free_sample_buf;
109 /* Check for the device and temporarily open it. */
110 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
113 /* Log errors, except for -3 ("device not found"). */
115 sr_err("Failed to open device (%d): %s", ret,
116 ftdi_get_error_string(devc->ftdic));
120 /* Register the device with libsigrok. */
121 sdi = g_malloc0(sizeof(struct sr_dev_inst));
122 sdi->status = SR_ST_INITIALIZING;
123 sdi->vendor = g_strdup(USB_VENDOR_NAME);
124 sdi->model = g_strdup(USB_MODEL_NAME);
128 for (i = 0; channel_names[i]; i++)
129 sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
132 devices = g_slist_append(devices, sdi);
133 drvc->instances = g_slist_append(drvc->instances, sdi);
135 /* Close device. We'll reopen it again when we need it. */
136 scanaplus_close(devc);
140 scanaplus_close(devc);
142 ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
144 g_free(devc->sample_buf);
145 err_free_compressed_buf:
146 g_free(devc->compressed_buf);
153 static GSList *dev_list(const struct sr_dev_driver *di)
155 return ((struct drv_context *)(di->priv))->instances;
158 static int dev_open(struct sr_dev_inst *sdi)
160 struct dev_context *devc;
165 /* Select interface A, otherwise communication will fail. */
166 ret = ftdi_set_interface(devc->ftdic, INTERFACE_A);
168 sr_err("Failed to set FTDI interface A (%d): %s", ret,
169 ftdi_get_error_string(devc->ftdic));
172 sr_dbg("FTDI chip interface A set successfully.");
174 /* Open the device. */
175 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
178 sr_err("Failed to open device (%d): %s", ret,
179 ftdi_get_error_string(devc->ftdic));
182 sr_dbg("FTDI device opened successfully.");
184 /* Purge RX/TX buffers in the FTDI chip. */
185 if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
186 sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
187 ret, ftdi_get_error_string(devc->ftdic));
188 goto err_dev_open_close_ftdic;
190 sr_dbg("FTDI chip buffers purged successfully.");
192 /* Reset the FTDI bitmode. */
193 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET);
195 sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
196 ret, ftdi_get_error_string(devc->ftdic));
197 goto err_dev_open_close_ftdic;
199 sr_dbg("FTDI chip bitmode reset successfully.");
201 /* Set FTDI bitmode to "sync FIFO". */
202 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_SYNCFF);
204 sr_err("Failed to put FTDI chip into sync FIFO mode (%d): %s.",
205 ret, ftdi_get_error_string(devc->ftdic));
206 goto err_dev_open_close_ftdic;
208 sr_dbg("FTDI chip sync FIFO mode entered successfully.");
210 /* Set the FTDI latency timer to 2. */
211 ret = ftdi_set_latency_timer(devc->ftdic, 2);
213 sr_err("Failed to set FTDI latency timer (%d): %s.",
214 ret, ftdi_get_error_string(devc->ftdic));
215 goto err_dev_open_close_ftdic;
217 sr_dbg("FTDI chip latency timer set successfully.");
219 /* Set the FTDI read data chunk size to 64kB. */
220 ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024);
222 sr_err("Failed to set FTDI read data chunk size (%d): %s.",
223 ret, ftdi_get_error_string(devc->ftdic));
224 goto err_dev_open_close_ftdic;
226 sr_dbg("FTDI chip read data chunk size set successfully.");
228 /* Get the ScanaPLUS device ID from the FTDI EEPROM. */
229 if ((ret = scanaplus_get_device_id(devc)) < 0) {
230 sr_err("Failed to get ScanaPLUS device ID: %d.", ret);
231 goto err_dev_open_close_ftdic;
233 sr_dbg("Received ScanaPLUS device ID successfully: %02x %02x %02x.",
234 devc->devid[0], devc->devid[1], devc->devid[2]);
236 sdi->status = SR_ST_ACTIVE;
240 err_dev_open_close_ftdic:
241 scanaplus_close(devc);
245 static int dev_close(struct sr_dev_inst *sdi)
248 struct dev_context *devc;
253 if (sdi->status == SR_ST_ACTIVE) {
254 sr_dbg("Status ACTIVE, closing device.");
255 ret = scanaplus_close(devc);
257 sr_spew("Status not ACTIVE, nothing to do.");
260 sdi->status = SR_ST_INACTIVE;
265 static int cleanup(const struct sr_dev_driver *di)
267 return dev_clear(di);
270 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
271 const struct sr_channel_group *cg)
277 case SR_CONF_SAMPLERATE:
278 /* The ScanaPLUS samplerate is 100MHz and can't be changed. */
279 *data = g_variant_new_uint64(SR_MHZ(100));
288 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
289 const struct sr_channel_group *cg)
291 struct dev_context *devc;
295 if (sdi->status != SR_ST_ACTIVE)
296 return SR_ERR_DEV_CLOSED;
301 case SR_CONF_SAMPLERATE:
302 if (g_variant_get_uint64(data) != SR_MHZ(100)) {
303 sr_err("ScanaPLUS only supports samplerate = 100MHz.");
306 /* Nothing to do, the ScanaPLUS samplerate is always 100MHz. */
308 case SR_CONF_LIMIT_MSEC:
309 if (g_variant_get_uint64(data) == 0)
311 devc->limit_msec = g_variant_get_uint64(data);
313 case SR_CONF_LIMIT_SAMPLES:
314 if (g_variant_get_uint64(data) == 0)
316 devc->limit_samples = g_variant_get_uint64(data);
325 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
326 const struct sr_channel_group *cg)
335 case SR_CONF_DEVICE_OPTIONS:
336 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
337 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
339 case SR_CONF_SAMPLERATE:
340 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
341 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
342 samplerates, ARRAY_SIZE(samplerates),
344 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
345 *data = g_variant_builder_end(&gvb);
354 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
357 struct dev_context *devc;
359 if (sdi->status != SR_ST_ACTIVE)
360 return SR_ERR_DEV_CLOSED;
362 if (!(devc = sdi->priv))
368 /* TODO: Configure channels later (thresholds etc.). */
370 devc->cb_data = cb_data;
372 /* Properly reset internal variables before every new acquisition. */
373 devc->compressed_bytes_ignored = 0;
374 devc->samples_sent = 0;
375 devc->bytes_received = 0;
377 if ((ret = scanaplus_init(devc)) < 0)
380 if ((ret = scanaplus_start_acquisition(devc)) < 0)
383 /* Send header packet to the session bus. */
384 std_session_send_df_header(sdi, LOG_PREFIX);
386 /* Hook up a dummy handler to receive data from the device. */
387 sr_session_source_add(sdi->session, -1, G_IO_IN, 0, scanaplus_receive_data, (void *)sdi);
392 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
394 struct sr_datafeed_packet packet;
398 sr_dbg("Stopping acquisition.");
399 sr_session_source_remove(sdi->session, -1);
401 /* Send end packet to the session bus. */
402 sr_dbg("Sending SR_DF_END.");
403 packet.type = SR_DF_END;
404 sr_session_send(sdi, &packet);
409 SR_PRIV struct sr_dev_driver ikalogic_scanaplus_driver_info = {
410 .name = "ikalogic-scanaplus",
411 .longname = "IKALOGIC ScanaPLUS",
416 .dev_list = dev_list,
417 .dev_clear = dev_clear,
418 .config_get = config_get,
419 .config_set = config_set,
420 .config_list = config_list,
421 .dev_open = dev_open,
422 .dev_close = dev_close,
423 .dev_acquisition_start = dev_acquisition_start,
424 .dev_acquisition_stop = dev_acquisition_stop,