X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Ffx2lafw%2Ffx2lafw.c;h=8132251f4410a296af06e03a3ae767bc52dd1f89;hb=79dc64985f7e50943562169aebd7eefbd6e13490;hp=e213df9c2cd18ef4b6df5b090acc468a9d3b93a5;hpb=f92994fd9174bc423e58c21eda83633afc9513da;p=libsigrok.git diff --git a/hardware/fx2lafw/fx2lafw.c b/hardware/fx2lafw/fx2lafw.c index e213df9c..8132251f 100644 --- a/hardware/fx2lafw/fx2lafw.c +++ b/hardware/fx2lafw/fx2lafw.c @@ -19,8 +19,8 @@ #include #include +#include #include -#include #include #include "config.h" #include "sigrok.h" @@ -28,13 +28,47 @@ #include "fx2lafw.h" #include "command.h" -static struct fx2lafw_profile supported_fx2[] = { - /* USBee AX */ - { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, 8 }, - { 0, 0, 0, 0, 0, 0 } +static const struct fx2lafw_profile supported_fx2[] = { + /* + * CWAV USBee AX + * EE Electronics ESLA201A + */ + { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, + FIRMWARE_DIR "/fx2lafw-cwav-usbeeax.fw", 8 }, + + /* + * CWAV USBee SX + */ + { 0x08a9, 0x0009, "CWAV", "USBee SX", NULL, + FIRMWARE_DIR "/fx2lafw-cwav-usbeesx.fw", 8 }, + + /* + * Saleae Logic + * EE Electronics ESLA100 + * Robomotic MiniLogic + * Robomotic BugLogic 3 + */ + { 0x0925, 0x3881, "Saleae", "Logic", NULL, + FIRMWARE_DIR "/fx2lafw-saleae-logic.fw", 8 }, + + /* + * 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", 8 }, + + /* + * Braintechnology USB-LPS + */ + { 0x16d0, 0x0498, "Braintechnology", "USB-LPS", NULL, + FIRMWARE_DIR "/fx2lafw-braintechnology-usb-lps.fw", 8 }, + + { 0, 0, 0, 0, 0, 0, 0 } }; -static int fx2lafw_capabilities[] = { +static int hwcaps[] = { SR_HWCAP_LOGIC_ANALYZER, SR_HWCAP_SAMPLERATE, @@ -44,19 +78,29 @@ static int fx2lafw_capabilities[] = { 0, }; -static const char *fx2lafw_probe_names[] = { - "D0", - "D1", - "D2", - "D3", - "D4", - "D5", - "D6", - "D7", +/* + * TODO: Different probe_names[] for each supported device. + */ +static const char *probe_names[] = { + "0", + "1", + "2", + "3", + "4", + "5", + "6", + "7", NULL, }; -static uint64_t fx2lafw_supported_samplerates[] = { +static uint64_t supported_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), @@ -66,20 +110,21 @@ static uint64_t fx2lafw_supported_samplerates[] = { SR_MHZ(12), SR_MHZ(16), SR_MHZ(24), + 0, }; -static struct sr_samplerates fx2lafw_samplerates = { - SR_MHZ(1), - SR_MHZ(24), - SR_HZ(0), - fx2lafw_supported_samplerates, +static struct sr_samplerates samplerates = { + 0, + 0, + 0, + supported_samplerates, }; static GSList *dev_insts = NULL; static libusb_context *usb_context = NULL; static int hw_dev_config_set(int dev_index, int hwcap, void *value); -static int hw_dev_acquisition_stop(int dev_index, void *session_dev_id); +static int hw_dev_acquisition_stop(int dev_index, void *cb_data); /** * Check the USB configuration to determine if this is an fx2lafw device. @@ -90,66 +135,50 @@ static int hw_dev_acquisition_stop(int dev_index, void *session_dev_id); static gboolean check_conf_profile(libusb_device *dev) { struct libusb_device_descriptor des; - struct libusb_config_descriptor *conf_dsc = NULL; - const struct libusb_interface_descriptor *intf_dsc; - gboolean ret = FALSE; + struct libusb_device_handle *hdl; + gboolean ret; + unsigned char strdesc[64]; + hdl = NULL; + ret = FALSE; while (!ret) { - /* Assume it's not a Saleae Logic unless proven wrong. */ - ret = 0; - + /* Assume the FW has not been loaded, unless proven wrong. */ if (libusb_get_device_descriptor(dev, &des) != 0) break; - if (des.bNumConfigurations != 1) - /* Need exactly 1 configuration. */ + if (libusb_open(dev, &hdl) != 0) break; - if (libusb_get_config_descriptor(dev, 0, &conf_dsc) != 0) + if (libusb_get_string_descriptor_ascii(hdl, + des.iManufacturer, strdesc, sizeof(strdesc)) < 0) break; - - if (conf_dsc->bNumInterfaces != 1) - /* Need exactly 1 interface. */ - break; - - if (conf_dsc->interface[0].num_altsetting != 1) - /* Need just one alternate setting. */ + if (strncmp((const char *)strdesc, "sigrok", 6)) break; - intf_dsc = &(conf_dsc->interface[0].altsetting[0]); - if (intf_dsc->bNumEndpoints != 3) - /* Need exactly 3 end points. */ + if (libusb_get_string_descriptor_ascii(hdl, + des.iProduct, strdesc, sizeof(strdesc)) < 0) break; - - if ((intf_dsc->endpoint[0].bEndpointAddress & 0x8f) != - (1 | LIBUSB_ENDPOINT_OUT)) - /* The first endpoint should be 1 (outbound). */ - break; - - if ((intf_dsc->endpoint[1].bEndpointAddress & 0x8f) != - (2 | LIBUSB_ENDPOINT_IN)) - /* The second endpoint should be 2 (inbound). */ + if (strncmp((const char *)strdesc, "fx2lafw", 7)) break; - /* TODO: Check the debug channel... */ - /* If we made it here, it must be an fx2lafw. */ ret = TRUE; } - - if (conf_dsc) - libusb_free_config_descriptor(conf_dsc); + if (hdl) + libusb_close(hdl); return ret; } -static int fx2lafw_open_dev(int dev_index) +static int fx2lafw_dev_open(int dev_index) { libusb_device **devlist; struct libusb_device_descriptor des; struct sr_dev_inst *sdi; struct context *ctx; - int err, skip, i; + struct version_info vi; + int ret, skip, i; + uint8_t revid; if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) return SR_ERR; @@ -160,10 +189,17 @@ static int fx2lafw_open_dev(int dev_index) return SR_ERR; skip = 0; - libusb_get_device_list(usb_context, &devlist); - for (i = 0; devlist[i]; i++) { - if ((err = libusb_get_device_descriptor(devlist[i], &des))) { - sr_err("fx2lafw: failed to get device descriptor: %d", err); + const int device_count = libusb_get_device_list(usb_context, &devlist); + if (device_count < 0) { + sr_err("fx2lafw: Failed to retrieve device list (%d)", + device_count); + return SR_ERR; + } + + for (i = 0; i < device_count; i++) { + if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { + sr_err("fx2lafw: Failed to get device descriptor: %d.", + ret); continue; } @@ -188,23 +224,45 @@ static int fx2lafw_open_dev(int dev_index) continue; } - if (!(err = libusb_open(devlist[i], &ctx->usb->devhdl))) { + if (!(ret = libusb_open(devlist[i], &ctx->usb->devhdl))) { if (ctx->usb->address == 0xff) /* * first time we touch this device after firmware upload, * so we don't know the address yet. */ ctx->usb->address = libusb_get_device_address(devlist[i]); - - sdi->status = SR_ST_ACTIVE; - sr_info("fx2lafw: opened device %d on %d.%d interface %d", - sdi->index, ctx->usb->bus, - ctx->usb->address, USB_INTERFACE); } else { - sr_err("fx2lafw: failed to open device: %d", err); + sr_err("fx2lafw: Failed to open device: %d.", ret); + break; + } + + ret = command_get_fw_version(ctx->usb->devhdl, &vi); + if (ret != SR_OK) { + sr_err("fx2lafw: Failed to retrieve " + "firmware version information."); + break; + } + + ret = command_get_revid_version(ctx->usb->devhdl, &revid); + if (ret != SR_OK) { + sr_err("fx2lafw: Failed to retrieve REVID."); + break; + } + + if (vi.major != FX2LAFW_VERSION_MAJOR || + vi.minor != FX2LAFW_VERSION_MINOR) { + sr_err("fx2lafw: Expected firmware version %d.%d " + "got %d.%d.", FX2LAFW_VERSION_MAJOR, + FX2LAFW_VERSION_MINOR, vi.major, vi.minor); + break; } - /* if we made it here, we handled the device one way or another */ + sdi->status = SR_ST_ACTIVE; + sr_info("fx2lafw: Opened device %d on %d.%d " + "interface %d, firmware %d.%d, REVID %d.", + sdi->index, ctx->usb->bus, ctx->usb->address, + USB_INTERFACE, vi.major, vi.minor, revid); + break; } libusb_free_device_list(devlist, 1); @@ -224,23 +282,69 @@ static void close_dev(struct sr_dev_inst *sdi) if (ctx->usb->devhdl == NULL) return; - sr_info("fx2lafw: closing device %d on %d.%d interface %d", sdi->index, - ctx->usb->bus, ctx->usb->address, USB_INTERFACE); + sr_info("fx2lafw: Closing device %d on %d.%d interface %d.", + sdi->index, ctx->usb->bus, ctx->usb->address, USB_INTERFACE); libusb_release_interface(ctx->usb->devhdl, USB_INTERFACE); libusb_close(ctx->usb->devhdl); ctx->usb->devhdl = NULL; sdi->status = SR_ST_INACTIVE; } -static struct context *fx2lafw_device_new(void) +static int configure_probes(struct context *ctx, GSList *probes) +{ + struct sr_probe *probe; + GSList *l; + int probe_bit, stage, i; + char *tc; + + for (i = 0; i < NUM_TRIGGER_STAGES; i++) { + ctx->trigger_mask[i] = 0; + ctx->trigger_value[i] = 0; + } + + stage = -1; + for (l = probes; l; l = l->next) { + probe = (struct sr_probe *)l->data; + if (probe->enabled == FALSE) + continue; + probe_bit = 1 << (probe->index - 1); + if (!(probe->trigger)) + continue; + + stage = 0; + for (tc = probe->trigger; *tc; tc++) { + ctx->trigger_mask[stage] |= probe_bit; + if (*tc == '1') + ctx->trigger_value[stage] |= probe_bit; + stage++; + if (stage > NUM_TRIGGER_STAGES) + return SR_ERR; + } + } + + if (stage == -1) + /* + * We didn't configure any triggers, make sure acquisition + * doesn't wait for any. + */ + ctx->trigger_stage = TRIGGER_FIRED; + else + ctx->trigger_stage = 0; + + return SR_OK; +} + +static struct context *fx2lafw_dev_new(void) { struct context *ctx; if (!(ctx = g_try_malloc0(sizeof(struct context)))) { - sr_err("fx2lafw: %s: ctx malloc failed", __func__); + sr_err("fx2lafw: %s: ctx malloc failed.", __func__); return NULL; } + ctx->trigger_stage = TRIGGER_FIRED; + return ctx; } @@ -248,72 +352,72 @@ static struct context *fx2lafw_device_new(void) * API callbacks */ -static int hw_init(const char *deviceinfo) +static int hw_init(const char *devinfo) { struct sr_dev_inst *sdi; struct libusb_device_descriptor des; - struct fx2lafw_profile *fx2lafw_prof; + const struct fx2lafw_profile *prof; struct context *ctx; libusb_device **devlist; - int err; + int ret; int devcnt = 0; int i, j; /* Avoid compiler warnings. */ - (void)deviceinfo; + (void)devinfo; if (libusb_init(&usb_context) != 0) { - sr_warn("Failed to initialize USB."); + sr_warn("fx2lafw: Failed to initialize libusb."); return 0; } - /* Find all fx2lafw compatible devices and upload firware to all of them. */ + /* Find all fx2lafw compatible devices and upload firware to them. */ libusb_get_device_list(usb_context, &devlist); for (i = 0; devlist[i]; i++) { - if ((err = libusb_get_device_descriptor( - devlist[i], &des)) != 0) { - sr_warn("failed to get device descriptor: %d", err); + if ((ret = libusb_get_device_descriptor( + devlist[i], &des)) != 0) { + sr_warn("fx2lafw: Failed to get device descriptor: %d.", ret); continue; } - fx2lafw_prof = NULL; + prof = NULL; for (j = 0; supported_fx2[j].vid; j++) { if (des.idVendor == supported_fx2[j].vid && des.idProduct == supported_fx2[j].pid) { - fx2lafw_prof = &supported_fx2[j]; + prof = &supported_fx2[j]; } } /* Skip if the device was not found */ - if(!fx2lafw_prof) + if (!prof) continue; sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING, - fx2lafw_prof->vendor, fx2lafw_prof->model, - fx2lafw_prof->model_version); - if(!sdi) + prof->vendor, prof->model, prof->model_version); + if (!sdi) return 0; - ctx = fx2lafw_device_new(); - ctx->profile = fx2lafw_prof; + ctx = fx2lafw_dev_new(); + ctx->profile = prof; sdi->priv = ctx; dev_insts = g_slist_append(dev_insts, sdi); if (check_conf_profile(devlist[i])) { /* Already has the firmware, so fix the new address. */ - sr_dbg("fx2lafw: Found a fx2lafw device."); + sr_dbg("fx2lafw: Found an fx2lafw device."); sdi->status = SR_ST_INACTIVE; ctx->usb = 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, FIRMWARE) == SR_OK) + if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, + prof->firmware) == SR_OK) /* Remember when the firmware on this device was updated */ g_get_current_time(&ctx->fw_updated); else - sr_err("fx2lafw: firmware upload failed for " - "device %d", devcnt); + sr_err("fx2lafw: Firmware upload failed for " + "device %d.", devcnt); ctx->usb = sr_usb_dev_inst_new (libusb_get_bus_number(devlist[i]), 0xff, NULL); } @@ -330,50 +434,50 @@ static int hw_dev_open(int dev_index) GTimeVal cur_time; struct sr_dev_inst *sdi; struct context *ctx; - int timediff, err; + int timediff, ret; if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) return SR_ERR; ctx = sdi->priv; /* - * if the firmware was recently uploaded, wait up to MAX_RENUM_DELAY ms - * for the FX2 to renumerate + * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY ms + * for the FX2 to renumerate. */ - err = 0; + ret = 0; if (GTV_TO_MSEC(ctx->fw_updated) > 0) { - sr_info("fx2lafw: waiting for device to reset"); + sr_info("fx2lafw: Waiting for device to reset."); /* takes at least 300ms for the FX2 to be gone from the USB bus */ g_usleep(300 * 1000); timediff = 0; while (timediff < MAX_RENUM_DELAY) { - if ((err = fx2lafw_open_dev(dev_index)) == SR_OK) + if ((ret = fx2lafw_dev_open(dev_index)) == SR_OK) break; g_usleep(100 * 1000); g_get_current_time(&cur_time); timediff = GTV_TO_MSEC(cur_time) - GTV_TO_MSEC(ctx->fw_updated); } - sr_info("fx2lafw: device came back after %d ms", timediff); + sr_info("fx2lafw: Device came back after %d ms.", timediff); } else { - err = fx2lafw_open_dev(dev_index); + ret = fx2lafw_dev_open(dev_index); } - if (err != SR_OK) { - sr_err("fx2lafw: unable to open device"); + if (ret != SR_OK) { + sr_err("fx2lafw: Unable to open device."); return SR_ERR; } ctx = sdi->priv; - err = libusb_claim_interface(ctx->usb->devhdl, USB_INTERFACE); - if (err != 0) { - sr_err("fx2lafw: Unable to claim interface: %d", err); + ret = libusb_claim_interface(ctx->usb->devhdl, USB_INTERFACE); + if (ret != 0) { + sr_err("fx2lafw: Unable to claim interface: %d.", ret); return SR_ERR; } if (ctx->cur_samplerate == 0) { /* Samplerate hasn't been set; default to the slowest one. */ if (hw_dev_config_set(dev_index, SR_HWCAP_SAMPLERATE, - &fx2lafw_supported_samplerates[0]) == SR_ERR) + &supported_samplerates[0]) == SR_ERR) return SR_ERR; } @@ -385,7 +489,7 @@ static int hw_dev_close(int dev_index) struct sr_dev_inst *sdi; if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) { - sr_err("fx2lafw: %s: sdi was NULL", __func__); + sr_err("fx2lafw: %s: sdi was NULL.", __func__); return SR_ERR_BUG; } @@ -402,10 +506,11 @@ static int hw_cleanup(void) struct context *ctx; int ret = SR_OK; - for(l = dev_insts; l; l = l->next) { + for (l = dev_insts; l; l = l->next) { if (!(sdi = l->data)) { /* Log error, but continue cleaning up the rest. */ - sr_err("fx2lafw: %s: sdi was NULL, continuing", __func__); + sr_err("fx2lafw: %s: sdi was NULL, continuing.", + __func__); ret = SR_ERR_BUG; continue; } @@ -424,7 +529,7 @@ static int hw_cleanup(void) g_slist_free(dev_insts); dev_insts = NULL; - if(usb_context) + if (usb_context) libusb_exit(usb_context); usb_context = NULL; @@ -446,9 +551,9 @@ static void *hw_dev_info_get(int dev_index, int dev_info_id) case SR_DI_NUM_PROBES: return GINT_TO_POINTER(ctx->profile->num_probes); case SR_DI_PROBE_NAMES: - return fx2lafw_probe_names; + return probe_names; case SR_DI_SAMPLERATES: - return &fx2lafw_samplerates; + return &samplerates; case SR_DI_TRIGGER_TYPES: return TRIGGER_TYPES; case SR_DI_CUR_SAMPLERATE: @@ -471,7 +576,7 @@ static int hw_dev_status_get(int dev_index) static int *hw_hwcap_get_all(void) { - return fx2lafw_capabilities; + return hwcaps; } static int hw_dev_config_set(int dev_index, int hwcap, void *value) @@ -488,7 +593,7 @@ static int hw_dev_config_set(int dev_index, int hwcap, void *value) ctx->cur_samplerate = *(uint64_t *)value; ret = SR_OK; } else if (hwcap == SR_HWCAP_PROBECONFIG) { - ret = SR_OK; + ret = configure_probes(ctx, (GSList *) value); } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) { ctx->limit_samples = *(uint64_t *)value; ret = SR_OK; @@ -515,15 +620,25 @@ static int receive_data(int fd, int revents, void *cb_data) } static void abort_acquisition(struct context *ctx) +{ + ctx->num_samples = -1; +} + +static void finish_acquisition(struct context *ctx) { struct sr_datafeed_packet packet; + int i; + /* Terminate session */ packet.type = SR_DF_END; sr_session_send(ctx->session_dev_id, &packet); - ctx->num_samples = -1; - - /* TODO: Need to cancel and free any queued up transfers. */ + /* Remove fds from polling */ + const struct libusb_pollfd **const lupfd = + libusb_get_pollfds(usb_context); + for (i = 0; lupfd[i]; i++) + sr_source_remove(lupfd[i]->fd); + free(lupfd); /* NOT g_free()! */ } static void receive_transfer(struct libusb_transfer *transfer) @@ -533,7 +648,7 @@ static void receive_transfer(struct libusb_transfer *transfer) struct sr_datafeed_packet packet; struct sr_datafeed_logic logic; struct context *ctx = transfer->user_data; - int cur_buflen; + int cur_buflen, trigger_offset, i; unsigned char *cur_buf, *new_buf; /* @@ -543,20 +658,24 @@ static void receive_transfer(struct libusb_transfer *transfer) if (ctx->num_samples == -1) { if (transfer) libusb_free_transfer(transfer); + + ctx->submitted_transfers--; + if (ctx->submitted_transfers == 0) + finish_acquisition(ctx); + return; } - sr_info("fx2lafw: receive_transfer(): status %d received %d bytes", + sr_info("fx2lafw: receive_transfer(): status %d received %d bytes.", transfer->status, transfer->actual_length); /* Save incoming transfer before reusing the transfer struct. */ cur_buf = transfer->buffer; cur_buflen = transfer->actual_length; - ctx = transfer->user_data; /* Fire off a new request. */ if (!(new_buf = g_try_malloc(4096))) { - sr_err("fx2lafw: %s: new_buf malloc failed", __func__); + sr_err("fx2lafw: %s: new_buf malloc failed.", __func__); return; /* TODO: SR_ERR_MALLOC */ } @@ -565,7 +684,7 @@ static void receive_transfer(struct libusb_transfer *transfer) if (libusb_submit_transfer(transfer) != 0) { /* TODO: Stop session? */ /* TODO: Better error message. */ - sr_err("fx2lafw: %s: libusb_submit_transfer error", __func__); + sr_err("fx2lafw: %s: libusb_submit_transfer error.", __func__); } if (cur_buflen == 0) { @@ -582,19 +701,81 @@ static void receive_transfer(struct libusb_transfer *transfer) empty_transfer_count = 0; } - /* Send the incoming transfer to the session bus. */ - packet.type = SR_DF_LOGIC; - packet.payload = &logic; - logic.length = cur_buflen; - logic.unitsize = 1; - logic.data = cur_buf; - sr_session_send(ctx->session_dev_id, &packet); - g_free(cur_buf); + trigger_offset = 0; + if (ctx->trigger_stage >= 0) { + for (i = 0; i < cur_buflen; i++) { + + if ((cur_buf[i] & ctx->trigger_mask[ctx->trigger_stage]) == ctx->trigger_value[ctx->trigger_stage]) { + /* Match on this trigger stage. */ + ctx->trigger_buffer[ctx->trigger_stage] = cur_buf[i]; + ctx->trigger_stage++; + + if (ctx->trigger_stage == NUM_TRIGGER_STAGES || ctx->trigger_mask[ctx->trigger_stage] == 0) { + /* Match on all trigger stages, we're done. */ + trigger_offset = i + 1; + + /* + * TODO: Send pre-trigger buffer to session bus. + * Tell the frontend we hit the trigger here. + */ + packet.type = SR_DF_TRIGGER; + packet.payload = NULL; + sr_session_send(ctx->session_dev_id, &packet); + + /* + * Send the samples that triggered it, since we're + * skipping past them. + */ + packet.type = SR_DF_LOGIC; + packet.payload = &logic; + logic.length = ctx->trigger_stage; + logic.unitsize = 1; + logic.data = ctx->trigger_buffer; + sr_session_send(ctx->session_dev_id, &packet); + + ctx->trigger_stage = TRIGGER_FIRED; + break; + } + return; + } - ctx->num_samples += cur_buflen; - if (ctx->limit_samples && - (unsigned int) ctx->num_samples > ctx->limit_samples) { - abort_acquisition(ctx); + /* + * We had a match before, but not in the next sample. However, we may + * have a match on this stage in the next bit -- trigger on 0001 will + * fail on seeing 00001, so we need to go back to stage 0 -- but at + * the next sample from the one that matched originally, which the + * counter increment at the end of the loop takes care of. + */ + if (ctx->trigger_stage > 0) { + i -= ctx->trigger_stage; + if (i < -1) + i = -1; /* Oops, went back past this buffer. */ + /* Reset trigger stage. */ + ctx->trigger_stage = 0; + } + } + } + + if (ctx->trigger_stage == TRIGGER_FIRED) { + /* Send the incoming transfer to the session bus. */ + packet.type = SR_DF_LOGIC; + packet.payload = &logic; + logic.length = cur_buflen - trigger_offset; + logic.unitsize = 1; + logic.data = cur_buf + trigger_offset; + sr_session_send(ctx->session_dev_id, &packet); + g_free(cur_buf); + + ctx->num_samples += cur_buflen; + if (ctx->limit_samples && + (unsigned int)ctx->num_samples > ctx->limit_samples) { + abort_acquisition(ctx); + } + } else { + /* + * TODO: Buffer pre-trigger data in capture + * ratio-sized buffer. + */ } } @@ -606,7 +787,7 @@ static int hw_dev_acquisition_start(int dev_index, void *cb_data) struct context *ctx; struct libusb_transfer *transfer; const struct libusb_pollfd **lupfd; - int err, size, i; + int ret, size, i; unsigned char *buf; if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) @@ -616,24 +797,20 @@ static int hw_dev_acquisition_start(int dev_index, void *cb_data) ctx->num_samples = 0; if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) { - sr_err("fx2lafw: %s: packet malloc failed", __func__); + sr_err("fx2lafw: %s: packet malloc failed.", __func__); return SR_ERR_MALLOC; } if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) { - sr_err("fx2lafw: %s: header malloc failed", __func__); + sr_err("fx2lafw: %s: header malloc failed.", __func__); return SR_ERR_MALLOC; } - if ((err = command_start_acquisition (ctx->usb->devhdl)) != SR_OK) { - return err; - } - /* Start with 2K transfer, subsequently increased to 4K. */ size = 2048; for (i = 0; i < NUM_SIMUL_TRANSFERS; i++) { if (!(buf = g_try_malloc(size))) { - sr_err("fx2lafw: %s: buf malloc failed", __func__); + sr_err("fx2lafw: %s: buf malloc failed.", __func__); return SR_ERR_MALLOC; } transfer = libusb_alloc_transfer(0); @@ -646,6 +823,8 @@ static int hw_dev_acquisition_start(int dev_index, void *cb_data) g_free(buf); return SR_ERR; } + + ctx->submitted_transfers++; size = 4096; } @@ -665,6 +844,11 @@ static int hw_dev_acquisition_start(int dev_index, void *cb_data) g_free(header); g_free(packet); + if ((ret = command_start_acquisition (ctx->usb->devhdl, + ctx->cur_samplerate)) != SR_OK) { + return ret; + } + return SR_OK; } @@ -673,7 +857,7 @@ static int hw_dev_acquisition_stop(int dev_index, void *cb_data) { struct sr_dev_inst *sdi; - /* unused parameter */ + /* Avoid compiler warnings. */ (void)cb_data; if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) @@ -686,7 +870,7 @@ static int hw_dev_acquisition_stop(int dev_index, void *cb_data) SR_PRIV struct sr_dev_driver fx2lafw_driver_info = { .name = "fx2lafw", - .longname = "fx2lafw", + .longname = "fx2lafw (generic driver for FX2 based LAs)", .api_version = 1, .init = hw_init, .cleanup = hw_cleanup,