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, see <http://www.gnu.org/licenses/>.
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 drvopts[] = {
32 SR_CONF_LOGIC_ANALYZER,
35 static const uint32_t devopts[] = {
36 SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
37 SR_CONF_LIMIT_MSEC | SR_CONF_SET,
38 SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
41 /* Channels are numbered 1-9. */
42 static const char *channel_names[] = {
43 "1", "2", "3", "4", "5", "6", "7", "8", "9",
46 /* Note: The IKALOGIC ScanaPLUS always samples at 100MHz. */
47 static const uint64_t samplerates[1] = { SR_MHZ(100) };
49 static void clear_helper(struct dev_context *devc)
51 ftdi_free(devc->ftdic);
52 g_free(devc->compressed_buf);
53 g_free(devc->sample_buf);
56 static int dev_clear(const struct sr_dev_driver *di)
58 return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
61 static GSList *scan(struct sr_dev_driver *di, GSList *options)
63 struct sr_dev_inst *sdi;
64 struct dev_context *devc;
70 /* Allocate memory for our private device context. */
71 devc = g_malloc0(sizeof(struct dev_context));
73 /* Allocate memory for the incoming compressed samples. */
74 if (!(devc->compressed_buf = g_try_malloc0(COMPRESSED_BUF_SIZE))) {
75 sr_err("compressed_buf malloc failed.");
79 /* Allocate memory for the uncompressed samples. */
80 if (!(devc->sample_buf = g_try_malloc0(SAMPLE_BUF_SIZE))) {
81 sr_err("sample_buf malloc failed.");
82 goto err_free_compressed_buf;
85 /* Allocate memory for the FTDI context (ftdic) and initialize it. */
86 if (!(devc->ftdic = ftdi_new())) {
87 sr_err("Failed to initialize libftdi.");
88 goto err_free_sample_buf;
91 /* Check for the device and temporarily open it. */
92 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
95 /* Log errors, except for -3 ("device not found"). */
97 sr_err("Failed to open device (%d): %s", ret,
98 ftdi_get_error_string(devc->ftdic));
102 /* Register the device with libsigrok. */
103 sdi = g_malloc0(sizeof(struct sr_dev_inst));
104 sdi->status = SR_ST_INACTIVE;
105 sdi->vendor = g_strdup(USB_VENDOR_NAME);
106 sdi->model = g_strdup(USB_MODEL_NAME);
109 for (i = 0; i < ARRAY_SIZE(channel_names); i++)
110 sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
112 /* Close device. We'll reopen it again when we need it. */
113 scanaplus_close(devc);
115 return std_scan_complete(di, g_slist_append(NULL, sdi));
117 scanaplus_close(devc);
119 ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
121 g_free(devc->sample_buf);
122 err_free_compressed_buf:
123 g_free(devc->compressed_buf);
130 static int dev_open(struct sr_dev_inst *sdi)
132 struct dev_context *devc;
137 /* Select interface A, otherwise communication will fail. */
138 ret = ftdi_set_interface(devc->ftdic, INTERFACE_A);
140 sr_err("Failed to set FTDI interface A (%d): %s", ret,
141 ftdi_get_error_string(devc->ftdic));
145 /* Open the device. */
146 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
149 sr_err("Failed to open device (%d): %s", ret,
150 ftdi_get_error_string(devc->ftdic));
154 /* Purge RX/TX buffers in the FTDI chip. */
155 if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
156 sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
157 ret, ftdi_get_error_string(devc->ftdic));
158 goto err_dev_open_close_ftdic;
161 /* Reset the FTDI bitmode. */
162 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET);
164 sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
165 ret, ftdi_get_error_string(devc->ftdic));
166 goto err_dev_open_close_ftdic;
169 /* Set FTDI bitmode to "sync FIFO". */
170 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_SYNCFF);
172 sr_err("Failed to put FTDI chip into sync FIFO mode (%d): %s.",
173 ret, ftdi_get_error_string(devc->ftdic));
174 goto err_dev_open_close_ftdic;
177 /* Set the FTDI latency timer to 2. */
178 ret = ftdi_set_latency_timer(devc->ftdic, 2);
180 sr_err("Failed to set FTDI latency timer (%d): %s.",
181 ret, ftdi_get_error_string(devc->ftdic));
182 goto err_dev_open_close_ftdic;
185 /* Set the FTDI read data chunk size to 64kB. */
186 ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024);
188 sr_err("Failed to set FTDI read data chunk size (%d): %s.",
189 ret, ftdi_get_error_string(devc->ftdic));
190 goto err_dev_open_close_ftdic;
193 /* Get the ScanaPLUS device ID from the FTDI EEPROM. */
194 if ((ret = scanaplus_get_device_id(devc)) < 0) {
195 sr_err("Failed to get ScanaPLUS device ID: %d.", ret);
196 goto err_dev_open_close_ftdic;
198 sr_dbg("Received ScanaPLUS device ID successfully: %02x %02x %02x.",
199 devc->devid[0], devc->devid[1], devc->devid[2]);
203 err_dev_open_close_ftdic:
204 scanaplus_close(devc);
209 static int dev_close(struct sr_dev_inst *sdi)
211 struct dev_context *devc;
215 return scanaplus_close(devc);
218 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
219 const struct sr_channel_group *cg)
225 case SR_CONF_SAMPLERATE:
226 /* The ScanaPLUS samplerate is 100MHz and can't be changed. */
227 *data = g_variant_new_uint64(SR_MHZ(100));
236 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
237 const struct sr_channel_group *cg)
239 struct dev_context *devc;
246 case SR_CONF_SAMPLERATE:
247 if (g_variant_get_uint64(data) != SR_MHZ(100)) {
248 sr_err("ScanaPLUS only supports samplerate = 100MHz.");
251 /* Nothing to do, the ScanaPLUS samplerate is always 100MHz. */
253 case SR_CONF_LIMIT_MSEC:
254 if (g_variant_get_uint64(data) == 0)
256 devc->limit_msec = g_variant_get_uint64(data);
258 case SR_CONF_LIMIT_SAMPLES:
259 if (g_variant_get_uint64(data) == 0)
261 devc->limit_samples = g_variant_get_uint64(data);
270 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
271 const struct sr_channel_group *cg)
277 case SR_CONF_DEVICE_OPTIONS:
278 return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
279 case SR_CONF_SAMPLERATE:
280 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
281 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
282 samplerates, ARRAY_SIZE(samplerates),
284 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
285 *data = g_variant_builder_end(&gvb);
294 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
297 struct dev_context *devc;
304 /* TODO: Configure channels later (thresholds etc.). */
306 /* Properly reset internal variables before every new acquisition. */
307 devc->compressed_bytes_ignored = 0;
308 devc->samples_sent = 0;
309 devc->bytes_received = 0;
311 if ((ret = scanaplus_init(devc)) < 0)
314 if ((ret = scanaplus_start_acquisition(devc)) < 0)
317 std_session_send_df_header(sdi);
319 /* Hook up a dummy handler to receive data from the device. */
320 sr_session_source_add(sdi->session, -1, 0, 0, scanaplus_receive_data, (void *)sdi);
325 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
327 sr_session_source_remove(sdi->session, -1);
328 std_session_send_df_end(sdi);
333 static struct sr_dev_driver ikalogic_scanaplus_driver_info = {
334 .name = "ikalogic-scanaplus",
335 .longname = "IKALOGIC ScanaPLUS",
338 .cleanup = std_cleanup,
340 .dev_list = std_dev_list,
341 .dev_clear = dev_clear,
342 .config_get = config_get,
343 .config_set = config_set,
344 .config_list = config_list,
345 .dev_open = dev_open,
346 .dev_close = dev_close,
347 .dev_acquisition_start = dev_acquisition_start,
348 .dev_acquisition_stop = dev_acquisition_stop,
351 SR_REGISTER_DEV_DRIVER(ikalogic_scanaplus_driver_info);