/* * This file is part of the libsigrok project. * * Copyright (C) 2013 Bert Vermeulen * Copyright (C) 2012 Joel Holdsworth * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #include "protocol.h" static const struct fx2lafw_profile supported_fx2[] = { /* * CWAV USBee AX * EE Electronics ESLA201A * ARMFLY AX-Pro */ { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw", 0, NULL, NULL}, /* * CWAV USBee DX * XZL-Studio DX */ { 0x08a9, 0x0015, "CWAV", "USBee DX", NULL, FIRMWARE_DIR "/fx2lafw-cwav-usbeedx.fw", DEV_CAPS_16BIT, NULL, NULL }, /* * CWAV USBee SX */ { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL, FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw", 0, NULL, NULL}, /* * Saleae Logic * EE Electronics ESLA100 * Robomotic MiniLogic * Robomotic BugLogic 3 */ { 0x0925, 0x3881, "Saleae", "Logic", NULL, FIRMWARE_DIR "/fx2lafw-saleae-logic.fw", 0, NULL, NULL}, /* * Default Cypress FX2 without EEPROM, e.g.: * Lcsoft Mini Board * Braintechnology USB Interface V2.x */ { 0x04B4, 0x8613, "Cypress", "FX2", NULL, FIRMWARE_DIR "/fx2lafw-cypress-fx2.fw", DEV_CAPS_16BIT, NULL, NULL }, /* * Braintechnology USB-LPS */ { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL, FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw", DEV_CAPS_16BIT, NULL, NULL }, { 0, 0, 0, 0, 0, 0, 0, 0, 0 } }; static const int32_t hwopts[] = { SR_CONF_CONN, }; static const int32_t hwcaps[] = { SR_CONF_LOGIC_ANALYZER, SR_CONF_TRIGGER_MATCH, SR_CONF_SAMPLERATE, /* These are really implemented in the driver, not the hardware. */ SR_CONF_LIMIT_SAMPLES, SR_CONF_CONTINUOUS, }; static const char *channel_names[] = { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", NULL, }; static const int32_t soft_trigger_matches[] = { SR_TRIGGER_ZERO, SR_TRIGGER_ONE, SR_TRIGGER_RISING, SR_TRIGGER_FALLING, SR_TRIGGER_EDGE, }; static const uint64_t samplerates[] = { SR_KHZ(20), SR_KHZ(25), SR_KHZ(50), SR_KHZ(100), SR_KHZ(200), SR_KHZ(250), SR_KHZ(500), SR_MHZ(1), SR_MHZ(2), SR_MHZ(3), SR_MHZ(4), SR_MHZ(6), SR_MHZ(8), SR_MHZ(12), SR_MHZ(16), SR_MHZ(24), }; SR_PRIV struct sr_dev_driver fx2lafw_driver_info; static struct sr_dev_driver *di = &fx2lafw_driver_info; static int init(struct sr_context *sr_ctx) { return std_init(sr_ctx, di, LOG_PREFIX); } static GSList *scan(GSList *options) { struct drv_context *drvc; struct dev_context *devc; struct sr_dev_inst *sdi; struct sr_usb_dev_inst *usb; struct sr_channel *ch; struct sr_config *src; const struct fx2lafw_profile *prof; GSList *l, *devices, *conn_devices; struct libusb_device_descriptor des; libusb_device **devlist; struct libusb_device_handle *hdl; int devcnt, num_logic_channels, ret, i, j; const char *conn; char manufacturer[64], product[64]; drvc = di->priv; conn = NULL; for (l = options; l; l = l->next) { src = l->data; switch (src->key) { case SR_CONF_CONN: conn = g_variant_get_string(src->data, NULL); break; } } if (conn) conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); else conn_devices = NULL; /* Find all fx2lafw compatible devices and upload firmware to them. */ devices = NULL; libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); for (i = 0; devlist[i]; i++) { if (conn) { usb = NULL; for (l = conn_devices; l; l = l->next) { usb = l->data; if (usb->bus == libusb_get_bus_number(devlist[i]) && usb->address == libusb_get_device_address(devlist[i])) break; } if (!l) /* This device matched none of the ones that * matched the conn specification. */ continue; } if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) { sr_warn("Failed to get device descriptor: %s.", libusb_error_name(ret)); continue; } if ((ret = libusb_open(devlist[i], &hdl)) < 0) continue; if (des.iManufacturer == 0) { manufacturer[0] = '\0'; } else if ((ret = libusb_get_string_descriptor_ascii(hdl, des.iManufacturer, (unsigned char *) manufacturer, sizeof(manufacturer))) < 0) { sr_warn("Failed to get manufacturer string descriptor: %s.", libusb_error_name(ret)); continue; } if (des.iProduct == 0) { product[0] = '\0'; } else if ((ret = libusb_get_string_descriptor_ascii(hdl, des.iProduct, (unsigned char *) product, sizeof(product))) < 0) { sr_warn("Failed to get product string descriptor: %s.", libusb_error_name(ret)); continue; } libusb_close(hdl); prof = NULL; for (j = 0; supported_fx2[j].vid; j++) { if (des.idVendor == supported_fx2[j].vid && des.idProduct == supported_fx2[j].pid && (!supported_fx2[j].usb_manufacturer || !strcmp(manufacturer, supported_fx2[j].usb_manufacturer)) && (!supported_fx2[j].usb_manufacturer || !strcmp(product, supported_fx2[j].usb_product))) { prof = &supported_fx2[j]; break; } } /* Skip if the device was not found. */ if (!prof) continue; devcnt = g_slist_length(drvc->instances); sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, prof->vendor, prof->model, prof->model_version); if (!sdi) return NULL; sdi->driver = di; /* Fill in channellist according to this device's profile. */ num_logic_channels = prof->dev_caps & DEV_CAPS_16BIT ? 16 : 8; for (j = 0; j < num_logic_channels; j++) { if (!(ch = sr_channel_new(j, SR_CHANNEL_LOGIC, TRUE, channel_names[j]))) return NULL; sdi->channels = g_slist_append(sdi->channels, ch); } devc = fx2lafw_dev_new(); devc->profile = prof; sdi->priv = devc; drvc->instances = g_slist_append(drvc->instances, sdi); devices = g_slist_append(devices, sdi); if (fx2lafw_check_conf_profile(devlist[i])) { /* Already has the firmware, so fix the new address. */ sr_dbg("Found an fx2lafw device."); sdi->status = SR_ST_INACTIVE; sdi->inst_type = SR_INST_USB; sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), libusb_get_device_address(devlist[i]), NULL); } else { if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, prof->firmware) == SR_OK) /* Store when this device's FW was updated. */ devc->fw_updated = g_get_monotonic_time(); else sr_err("Firmware upload failed for " "device %d.", devcnt); sdi->inst_type = SR_INST_USB; sdi->conn = sr_usb_dev_inst_new(libusb_get_bus_number(devlist[i]), 0xff, NULL); } } libusb_free_device_list(devlist, 1); g_slist_free_full(conn_devices, (GDestroyNotify)sr_usb_dev_inst_free); return devices; } static GSList *dev_list(void) { return ((struct drv_context *)(di->priv))->instances; } static int dev_open(struct sr_dev_inst *sdi) { struct sr_usb_dev_inst *usb; struct dev_context *devc; int ret; int64_t timediff_us, timediff_ms; devc = sdi->priv; usb = sdi->conn; /* * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS * milliseconds for the FX2 to renumerate. */ ret = SR_ERR; if (devc->fw_updated > 0) { sr_info("Waiting for device to reset."); /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ g_usleep(300 * 1000); timediff_ms = 0; while (timediff_ms < MAX_RENUM_DELAY_MS) { if ((ret = fx2lafw_dev_open(sdi, di)) == SR_OK) break; g_usleep(100 * 1000); timediff_us = g_get_monotonic_time() - devc->fw_updated; timediff_ms = timediff_us / 1000; sr_spew("Waited %" PRIi64 "ms.", timediff_ms); } if (ret != SR_OK) { sr_err("Device failed to renumerate."); return SR_ERR; } sr_info("Device came back after %" PRIi64 "ms.", timediff_ms); } else { sr_info("Firmware upload was not needed."); ret = fx2lafw_dev_open(sdi, di); } if (ret != SR_OK) { sr_err("Unable to open device."); return SR_ERR; } ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); if (ret != 0) { switch (ret) { case LIBUSB_ERROR_BUSY: sr_err("Unable to claim USB interface. Another " "program or driver has already claimed it."); break; case LIBUSB_ERROR_NO_DEVICE: sr_err("Device has been disconnected."); break; default: sr_err("Unable to claim interface: %s.", libusb_error_name(ret)); break; } return SR_ERR; } if (devc->cur_samplerate == 0) { /* Samplerate hasn't been set; default to the slowest one. */ devc->cur_samplerate = samplerates[0]; } return SR_OK; } static int dev_close(struct sr_dev_inst *sdi) { struct sr_usb_dev_inst *usb; usb = sdi->conn; if (usb->devhdl == NULL) return SR_ERR; sr_info("fx2lafw: Closing device %d on %d.%d interface %d.", sdi->index, usb->bus, usb->address, USB_INTERFACE); libusb_release_interface(usb->devhdl, USB_INTERFACE); libusb_close(usb->devhdl); usb->devhdl = NULL; sdi->status = SR_ST_INACTIVE; return SR_OK; } static int cleanup(void) { int ret; struct drv_context *drvc; if (!(drvc = di->priv)) return SR_OK; ret = std_dev_clear(di, NULL); g_free(drvc); di->priv = NULL; return ret; } static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc; struct sr_usb_dev_inst *usb; char str[128]; (void)cg; if (!sdi) return SR_ERR_ARG; devc = sdi->priv; switch (id) { case SR_CONF_CONN: if (!sdi->conn) return SR_ERR_ARG; usb = sdi->conn; if (usb->address == 255) /* Device still needs to re-enumerate after firmware * upload, so we don't know its (future) address. */ return SR_ERR; snprintf(str, 128, "%d.%d", usb->bus, usb->address); *data = g_variant_new_string(str); break; case SR_CONF_LIMIT_SAMPLES: *data = g_variant_new_uint64(devc->limit_samples); break; case SR_CONF_SAMPLERATE: *data = g_variant_new_uint64(devc->cur_samplerate); break; default: return SR_ERR_NA; } return SR_OK; } static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { struct dev_context *devc; int ret; (void)cg; if (!sdi) return SR_ERR_ARG; if (sdi->status != SR_ST_ACTIVE) return SR_ERR; devc = sdi->priv; ret = SR_OK; switch (id) { case SR_CONF_SAMPLERATE: devc->cur_samplerate = g_variant_get_uint64(data); break; case SR_CONF_LIMIT_SAMPLES: devc->limit_samples = g_variant_get_uint64(data); break; default: ret = SR_ERR_NA; } return ret; } static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) { GVariant *gvar; GVariantBuilder gvb; (void)sdi; (void)cg; switch (key) { case SR_CONF_SCAN_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); break; case SR_CONF_DEVICE_OPTIONS: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); break; case SR_CONF_SAMPLERATE: g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t)); g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); *data = g_variant_builder_end(&gvb); break; case SR_CONF_TRIGGER_MATCH: *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, soft_trigger_matches, ARRAY_SIZE(soft_trigger_matches), sizeof(int32_t)); break; default: return SR_ERR_NA; } return SR_OK; } static int receive_data(int fd, int revents, void *cb_data) { struct timeval tv; struct drv_context *drvc; (void)fd; (void)revents; (void)cb_data; drvc = di->priv; tv.tv_sec = tv.tv_usec = 0; libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); return TRUE; } static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) { struct dev_context *devc; struct drv_context *drvc; struct sr_usb_dev_inst *usb; struct sr_trigger *trigger; struct libusb_transfer *transfer; unsigned int i, timeout, num_transfers; int ret; unsigned char *buf; size_t size; if (sdi->status != SR_ST_ACTIVE) return SR_ERR_DEV_CLOSED; drvc = di->priv; devc = sdi->priv; usb = sdi->conn; devc->cb_data = cb_data; devc->sent_samples = 0; devc->acq_aborted = FALSE; devc->empty_transfer_count = 0; if ((trigger = sr_session_trigger_get())) { devc->stl = soft_trigger_logic_new(sdi, trigger); devc->trigger_fired = FALSE; } else devc->trigger_fired = TRUE; timeout = fx2lafw_get_timeout(devc); num_transfers = fx2lafw_get_number_of_transfers(devc); size = fx2lafw_get_buffer_size(devc); devc->submitted_transfers = 0; devc->transfers = g_try_malloc0(sizeof(*devc->transfers) * num_transfers); if (!devc->transfers) { sr_err("USB transfers malloc failed."); return SR_ERR_MALLOC; } devc->num_transfers = num_transfers; for (i = 0; i < num_transfers; i++) { if (!(buf = g_try_malloc(size))) { sr_err("USB transfer buffer malloc failed."); return SR_ERR_MALLOC; } transfer = libusb_alloc_transfer(0); libusb_fill_bulk_transfer(transfer, usb->devhdl, 2 | LIBUSB_ENDPOINT_IN, buf, size, fx2lafw_receive_transfer, (void *)sdi, timeout); if ((ret = libusb_submit_transfer(transfer)) != 0) { sr_err("Failed to submit transfer: %s.", libusb_error_name(ret)); libusb_free_transfer(transfer); g_free(buf); fx2lafw_abort_acquisition(devc); return SR_ERR; } devc->transfers[i] = transfer; devc->submitted_transfers++; } devc->ctx = drvc->sr_ctx; usb_source_add(devc->ctx, timeout, receive_data, NULL); /* Send header packet to the session bus. */ std_session_send_df_header(cb_data, LOG_PREFIX); if ((ret = fx2lafw_command_start_acquisition(sdi)) != SR_OK) { fx2lafw_abort_acquisition(devc); return ret; } return SR_OK; } static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) { (void)cb_data; fx2lafw_abort_acquisition(sdi->priv); return SR_OK; } SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { .name = "fx2lafw", .longname = "fx2lafw (generic driver for FX2 based LAs)", .api_version = 1, .init = init, .cleanup = cleanup, .scan = scan, .dev_list = dev_list, .dev_clear = NULL, .config_get = config_get, .config_set = config_set, .config_list = config_list, .dev_open = dev_open, .dev_close = dev_close, .dev_acquisition_start = dev_acquisition_start, .dev_acquisition_stop = dev_acquisition_stop, .priv = NULL, };