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
24 #define USB_VENDOR_ID 0x0403
25 #define USB_DEVICE_ID 0x6014
26 #define USB_VENDOR_NAME "IKALOGIC"
27 #define USB_MODEL_NAME "ScanaPLUS"
28 #define USB_IPRODUCT "SCANAPLUS"
30 #define SAMPLE_BUF_SIZE (8 * 1024 * 1024)
32 static const uint32_t devopts[] = {
33 SR_CONF_LOGIC_ANALYZER,
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,
39 /* Channels are numbered 1-9. */
40 static const char *channel_names[] = {
41 "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 static int dev_acquisition_stop(struct sr_dev_inst *sdi);
49 static void clear_helper(void *priv)
51 struct dev_context *devc;
55 ftdi_free(devc->ftdic);
56 g_free(devc->compressed_buf);
57 g_free(devc->sample_buf);
61 static int dev_clear(const struct sr_dev_driver *di)
63 return std_dev_clear(di, clear_helper);
66 static GSList *scan(struct sr_dev_driver *di, GSList *options)
68 struct sr_dev_inst *sdi;
69 struct drv_context *drvc;
70 struct dev_context *devc;
78 /* Allocate memory for our private device context. */
79 devc = g_malloc0(sizeof(struct dev_context));
81 /* Allocate memory for the incoming compressed samples. */
82 if (!(devc->compressed_buf = g_try_malloc0(COMPRESSED_BUF_SIZE))) {
83 sr_err("compressed_buf malloc failed.");
87 /* Allocate memory for the uncompressed samples. */
88 if (!(devc->sample_buf = g_try_malloc0(SAMPLE_BUF_SIZE))) {
89 sr_err("sample_buf malloc failed.");
90 goto err_free_compressed_buf;
93 /* Allocate memory for the FTDI context (ftdic) and initialize it. */
94 if (!(devc->ftdic = ftdi_new())) {
95 sr_err("Failed to initialize libftdi.");
96 goto err_free_sample_buf;
99 /* Check for the device and temporarily open it. */
100 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
103 /* Log errors, except for -3 ("device not found"). */
105 sr_err("Failed to open device (%d): %s", ret,
106 ftdi_get_error_string(devc->ftdic));
110 /* Register the device with libsigrok. */
111 sdi = g_malloc0(sizeof(struct sr_dev_inst));
112 sdi->status = SR_ST_INACTIVE;
113 sdi->vendor = g_strdup(USB_VENDOR_NAME);
114 sdi->model = g_strdup(USB_MODEL_NAME);
117 for (i = 0; i < ARRAY_SIZE(channel_names); i++)
118 sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
120 /* Close device. We'll reopen it again when we need it. */
121 scanaplus_close(devc);
123 return std_scan_complete(di, g_slist_append(NULL, sdi));
125 scanaplus_close(devc);
127 ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
129 g_free(devc->sample_buf);
130 err_free_compressed_buf:
131 g_free(devc->compressed_buf);
138 static int dev_open(struct sr_dev_inst *sdi)
140 struct dev_context *devc;
145 /* Select interface A, otherwise communication will fail. */
146 ret = ftdi_set_interface(devc->ftdic, INTERFACE_A);
148 sr_err("Failed to set FTDI interface A (%d): %s", ret,
149 ftdi_get_error_string(devc->ftdic));
152 sr_dbg("FTDI chip interface A set successfully.");
154 /* Open the device. */
155 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
158 sr_err("Failed to open device (%d): %s", ret,
159 ftdi_get_error_string(devc->ftdic));
162 sr_dbg("FTDI device opened successfully.");
164 /* Purge RX/TX buffers in the FTDI chip. */
165 if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
166 sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
167 ret, ftdi_get_error_string(devc->ftdic));
168 goto err_dev_open_close_ftdic;
170 sr_dbg("FTDI chip buffers purged successfully.");
172 /* Reset the FTDI bitmode. */
173 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET);
175 sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
176 ret, ftdi_get_error_string(devc->ftdic));
177 goto err_dev_open_close_ftdic;
179 sr_dbg("FTDI chip bitmode reset successfully.");
181 /* Set FTDI bitmode to "sync FIFO". */
182 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_SYNCFF);
184 sr_err("Failed to put FTDI chip into sync FIFO mode (%d): %s.",
185 ret, ftdi_get_error_string(devc->ftdic));
186 goto err_dev_open_close_ftdic;
188 sr_dbg("FTDI chip sync FIFO mode entered successfully.");
190 /* Set the FTDI latency timer to 2. */
191 ret = ftdi_set_latency_timer(devc->ftdic, 2);
193 sr_err("Failed to set FTDI latency timer (%d): %s.",
194 ret, ftdi_get_error_string(devc->ftdic));
195 goto err_dev_open_close_ftdic;
197 sr_dbg("FTDI chip latency timer set successfully.");
199 /* Set the FTDI read data chunk size to 64kB. */
200 ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024);
202 sr_err("Failed to set FTDI read data chunk size (%d): %s.",
203 ret, ftdi_get_error_string(devc->ftdic));
204 goto err_dev_open_close_ftdic;
206 sr_dbg("FTDI chip read data chunk size set successfully.");
208 /* Get the ScanaPLUS device ID from the FTDI EEPROM. */
209 if ((ret = scanaplus_get_device_id(devc)) < 0) {
210 sr_err("Failed to get ScanaPLUS device ID: %d.", ret);
211 goto err_dev_open_close_ftdic;
213 sr_dbg("Received ScanaPLUS device ID successfully: %02x %02x %02x.",
214 devc->devid[0], devc->devid[1], devc->devid[2]);
216 sdi->status = SR_ST_ACTIVE;
220 err_dev_open_close_ftdic:
221 scanaplus_close(devc);
225 static int dev_close(struct sr_dev_inst *sdi)
228 struct dev_context *devc;
233 if (sdi->status == SR_ST_ACTIVE) {
234 sr_dbg("Status ACTIVE, closing device.");
235 ret = scanaplus_close(devc);
237 sr_spew("Status not ACTIVE, nothing to do.");
240 sdi->status = SR_ST_INACTIVE;
245 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
246 const struct sr_channel_group *cg)
252 case SR_CONF_SAMPLERATE:
253 /* The ScanaPLUS samplerate is 100MHz and can't be changed. */
254 *data = g_variant_new_uint64(SR_MHZ(100));
263 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
264 const struct sr_channel_group *cg)
266 struct dev_context *devc;
270 if (sdi->status != SR_ST_ACTIVE)
271 return SR_ERR_DEV_CLOSED;
276 case SR_CONF_SAMPLERATE:
277 if (g_variant_get_uint64(data) != SR_MHZ(100)) {
278 sr_err("ScanaPLUS only supports samplerate = 100MHz.");
281 /* Nothing to do, the ScanaPLUS samplerate is always 100MHz. */
283 case SR_CONF_LIMIT_MSEC:
284 if (g_variant_get_uint64(data) == 0)
286 devc->limit_msec = g_variant_get_uint64(data);
288 case SR_CONF_LIMIT_SAMPLES:
289 if (g_variant_get_uint64(data) == 0)
291 devc->limit_samples = g_variant_get_uint64(data);
300 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
301 const struct sr_channel_group *cg)
310 case SR_CONF_DEVICE_OPTIONS:
311 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
312 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
314 case SR_CONF_SAMPLERATE:
315 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
316 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
317 samplerates, ARRAY_SIZE(samplerates),
319 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
320 *data = g_variant_builder_end(&gvb);
329 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
332 struct dev_context *devc;
334 if (sdi->status != SR_ST_ACTIVE)
335 return SR_ERR_DEV_CLOSED;
342 /* TODO: Configure channels later (thresholds etc.). */
344 /* Properly reset internal variables before every new acquisition. */
345 devc->compressed_bytes_ignored = 0;
346 devc->samples_sent = 0;
347 devc->bytes_received = 0;
349 if ((ret = scanaplus_init(devc)) < 0)
352 if ((ret = scanaplus_start_acquisition(devc)) < 0)
355 std_session_send_df_header(sdi, LOG_PREFIX);
357 /* Hook up a dummy handler to receive data from the device. */
358 sr_session_source_add(sdi->session, -1, 0, 0, scanaplus_receive_data, (void *)sdi);
363 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
365 sr_dbg("Stopping acquisition.");
366 sr_session_source_remove(sdi->session, -1);
367 std_session_send_df_end(sdi, LOG_PREFIX);
372 static struct sr_dev_driver ikalogic_scanaplus_driver_info = {
373 .name = "ikalogic-scanaplus",
374 .longname = "IKALOGIC ScanaPLUS",
377 .cleanup = std_cleanup,
379 .dev_list = std_dev_list,
380 .dev_clear = dev_clear,
381 .config_get = config_get,
382 .config_set = config_set,
383 .config_list = config_list,
384 .dev_open = dev_open,
385 .dev_close = dev_close,
386 .dev_acquisition_start = dev_acquisition_start,
387 .dev_acquisition_stop = dev_acquisition_stop,
390 SR_REGISTER_DEV_DRIVER(ikalogic_scanaplus_driver_info);