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 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",
43 /* Note: The IKALOGIC ScanaPLUS always samples at 100MHz. */
44 static const uint64_t samplerates[1] = { SR_MHZ(100) };
46 static void clear_helper(void *priv)
48 struct dev_context *devc;
52 ftdi_free(devc->ftdic);
53 g_free(devc->compressed_buf);
54 g_free(devc->sample_buf);
57 static int dev_clear(const struct sr_dev_driver *di)
59 return std_dev_clear_with_callback(di, clear_helper);
62 static GSList *scan(struct sr_dev_driver *di, GSList *options)
64 struct sr_dev_inst *sdi;
65 struct dev_context *devc;
71 /* Allocate memory for our private device context. */
72 devc = g_malloc0(sizeof(struct dev_context));
74 /* Allocate memory for the incoming compressed samples. */
75 if (!(devc->compressed_buf = g_try_malloc0(COMPRESSED_BUF_SIZE))) {
76 sr_err("compressed_buf malloc failed.");
80 /* Allocate memory for the uncompressed samples. */
81 if (!(devc->sample_buf = g_try_malloc0(SAMPLE_BUF_SIZE))) {
82 sr_err("sample_buf malloc failed.");
83 goto err_free_compressed_buf;
86 /* Allocate memory for the FTDI context (ftdic) and initialize it. */
87 if (!(devc->ftdic = ftdi_new())) {
88 sr_err("Failed to initialize libftdi.");
89 goto err_free_sample_buf;
92 /* Check for the device and temporarily open it. */
93 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
96 /* Log errors, except for -3 ("device not found"). */
98 sr_err("Failed to open device (%d): %s", ret,
99 ftdi_get_error_string(devc->ftdic));
103 /* Register the device with libsigrok. */
104 sdi = g_malloc0(sizeof(struct sr_dev_inst));
105 sdi->status = SR_ST_INACTIVE;
106 sdi->vendor = g_strdup(USB_VENDOR_NAME);
107 sdi->model = g_strdup(USB_MODEL_NAME);
110 for (i = 0; i < ARRAY_SIZE(channel_names); i++)
111 sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
113 /* Close device. We'll reopen it again when we need it. */
114 scanaplus_close(devc);
116 return std_scan_complete(di, g_slist_append(NULL, sdi));
118 scanaplus_close(devc);
120 ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
122 g_free(devc->sample_buf);
123 err_free_compressed_buf:
124 g_free(devc->compressed_buf);
131 static int dev_open(struct sr_dev_inst *sdi)
133 struct dev_context *devc;
138 /* Select interface A, otherwise communication will fail. */
139 ret = ftdi_set_interface(devc->ftdic, INTERFACE_A);
141 sr_err("Failed to set FTDI interface A (%d): %s", ret,
142 ftdi_get_error_string(devc->ftdic));
146 /* Open the device. */
147 ret = ftdi_usb_open_desc(devc->ftdic, USB_VENDOR_ID, USB_DEVICE_ID,
150 sr_err("Failed to open device (%d): %s", ret,
151 ftdi_get_error_string(devc->ftdic));
155 /* Purge RX/TX buffers in the FTDI chip. */
156 if ((ret = ftdi_usb_purge_buffers(devc->ftdic)) < 0) {
157 sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
158 ret, ftdi_get_error_string(devc->ftdic));
159 goto err_dev_open_close_ftdic;
162 /* Reset the FTDI bitmode. */
163 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_RESET);
165 sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
166 ret, ftdi_get_error_string(devc->ftdic));
167 goto err_dev_open_close_ftdic;
170 /* Set FTDI bitmode to "sync FIFO". */
171 ret = ftdi_set_bitmode(devc->ftdic, 0xff, BITMODE_SYNCFF);
173 sr_err("Failed to put FTDI chip into sync FIFO mode (%d): %s.",
174 ret, ftdi_get_error_string(devc->ftdic));
175 goto err_dev_open_close_ftdic;
178 /* Set the FTDI latency timer to 2. */
179 ret = ftdi_set_latency_timer(devc->ftdic, 2);
181 sr_err("Failed to set FTDI latency timer (%d): %s.",
182 ret, ftdi_get_error_string(devc->ftdic));
183 goto err_dev_open_close_ftdic;
186 /* Set the FTDI read data chunk size to 64kB. */
187 ret = ftdi_read_data_set_chunksize(devc->ftdic, 64 * 1024);
189 sr_err("Failed to set FTDI read data chunk size (%d): %s.",
190 ret, ftdi_get_error_string(devc->ftdic));
191 goto err_dev_open_close_ftdic;
194 /* Get the ScanaPLUS device ID from the FTDI EEPROM. */
195 if ((ret = scanaplus_get_device_id(devc)) < 0) {
196 sr_err("Failed to get ScanaPLUS device ID: %d.", ret);
197 goto err_dev_open_close_ftdic;
199 sr_dbg("Received ScanaPLUS device ID successfully: %02x %02x %02x.",
200 devc->devid[0], devc->devid[1], devc->devid[2]);
204 err_dev_open_close_ftdic:
205 scanaplus_close(devc);
210 static int dev_close(struct sr_dev_inst *sdi)
212 struct dev_context *devc;
216 return scanaplus_close(devc);
219 static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
220 const struct sr_channel_group *cg)
226 case SR_CONF_SAMPLERATE:
227 /* The ScanaPLUS samplerate is 100MHz and can't be changed. */
228 *data = g_variant_new_uint64(SR_MHZ(100));
237 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
238 const struct sr_channel_group *cg)
240 struct dev_context *devc;
247 case SR_CONF_SAMPLERATE:
248 if (g_variant_get_uint64(data) != SR_MHZ(100)) {
249 sr_err("ScanaPLUS only supports samplerate = 100MHz.");
252 /* Nothing to do, the ScanaPLUS samplerate is always 100MHz. */
254 case SR_CONF_LIMIT_MSEC:
255 if (g_variant_get_uint64(data) == 0)
257 devc->limit_msec = g_variant_get_uint64(data);
259 case SR_CONF_LIMIT_SAMPLES:
260 if (g_variant_get_uint64(data) == 0)
262 devc->limit_samples = g_variant_get_uint64(data);
271 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
272 const struct sr_channel_group *cg)
281 case SR_CONF_DEVICE_OPTIONS:
282 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
283 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
285 case SR_CONF_SAMPLERATE:
286 g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
287 gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
288 samplerates, ARRAY_SIZE(samplerates),
290 g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
291 *data = g_variant_builder_end(&gvb);
300 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
303 struct dev_context *devc;
310 /* TODO: Configure channels later (thresholds etc.). */
312 /* Properly reset internal variables before every new acquisition. */
313 devc->compressed_bytes_ignored = 0;
314 devc->samples_sent = 0;
315 devc->bytes_received = 0;
317 if ((ret = scanaplus_init(devc)) < 0)
320 if ((ret = scanaplus_start_acquisition(devc)) < 0)
323 std_session_send_df_header(sdi);
325 /* Hook up a dummy handler to receive data from the device. */
326 sr_session_source_add(sdi->session, -1, 0, 0, scanaplus_receive_data, (void *)sdi);
331 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
333 sr_session_source_remove(sdi->session, -1);
334 std_session_send_df_end(sdi);
339 static struct sr_dev_driver ikalogic_scanaplus_driver_info = {
340 .name = "ikalogic-scanaplus",
341 .longname = "IKALOGIC ScanaPLUS",
344 .cleanup = std_cleanup,
346 .dev_list = std_dev_list,
347 .dev_clear = dev_clear,
348 .config_get = config_get,
349 .config_set = config_set,
350 .config_list = config_list,
351 .dev_open = dev_open,
352 .dev_close = dev_close,
353 .dev_acquisition_start = dev_acquisition_start,
354 .dev_acquisition_stop = dev_acquisition_stop,
357 SR_REGISTER_DEV_DRIVER(ikalogic_scanaplus_driver_info);