X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=hardware%2Ffx2lafw%2Ffx2lafw.c;h=ed95fd2b879c17382d89d82a558f513d9537a223;hb=94c26b08fdc2568a33e176b895c63048a4b66464;hp=636a0e7045d7e2616942f35a4e6baf710c04977c;hpb=62bc70e412e073580576fe8fda7c7bc7c9e2e30e;p=libsigrok.git diff --git a/hardware/fx2lafw/fx2lafw.c b/hardware/fx2lafw/fx2lafw.c index 636a0e70..ed95fd2b 100644 --- a/hardware/fx2lafw/fx2lafw.c +++ b/hardware/fx2lafw/fx2lafw.c @@ -19,20 +19,35 @@ #include #include -#include #include #include #include - #include "config.h" #include "sigrok.h" #include "sigrok-internal.h" #include "fx2lafw.h" +#include "command.h" + +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 + */ + { 0x0925, 0x3881, "Saleae", "Logic", NULL, + FIRMWARE_DIR "/fx2lafw-saleae-logic.fw", 8 }, -static struct fx2lafw_profile supported_fx2[] = { - /* USBee AX */ - { 0x08a9, 0x0014, "CWAV", "USBee AX", NULL, 8 }, - { 0, 0, 0, 0, 0, 0 } + { 0, 0, 0, 0, 0, 0, 0 } }; static int fx2lafw_capabilities[] = { @@ -42,7 +57,7 @@ static int fx2lafw_capabilities[] = { /* These are really implemented in the driver, not the hardware. */ SR_HWCAP_LIMIT_SAMPLES, SR_HWCAP_CONTINUOUS, - 0 + 0, }; static const char *fx2lafw_probe_names[] = { @@ -54,10 +69,10 @@ static const char *fx2lafw_probe_names[] = { "D5", "D6", "D7", - NULL + NULL, }; -static uint64_t fx2lafw_supported_samplerates[] = { +static uint64_t supported_samplerates[] = { SR_MHZ(1), SR_MHZ(2), SR_MHZ(3), @@ -66,34 +81,37 @@ static uint64_t fx2lafw_supported_samplerates[] = { SR_MHZ(8), SR_MHZ(12), SR_MHZ(16), - SR_MHZ(24) + SR_MHZ(24), }; -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); + /** * Check the USB configuration to determine if this is an fx2lafw device. * - * @return true if the device's configuration profile match fx2lafw - * configuration, flase otherwise. + * @return TRUE if the device's configuration profile match fx2lafw + * configuration, FALSE otherwise. */ -static bool check_conf_profile(libusb_device *dev) +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; - bool ret = false; + gboolean ret = FALSE; while (!ret) { - /* Assume it's not a Saleae Logic unless proven wrong. */ + /* Assume the firmware has not been loaded, unless proven wrong. */ ret = 0; if (libusb_get_device_descriptor(dev, &des) != 0) @@ -115,24 +133,19 @@ static bool check_conf_profile(libusb_device *dev) break; intf_dsc = &(conf_dsc->interface[0].altsetting[0]); - if (intf_dsc->bNumEndpoints != 3) - /* Need exactly 3 end points. */ + if (intf_dsc->bNumEndpoints != 2) + /* Need exactly 2 end points. */ 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). */ + (2 | LIBUSB_ENDPOINT_IN)) // 0x82 + /* The first endpoint should be 2 (inbound). */ break; /* TODO: Check the debug channel... */ /* If we made it here, it must be an fx2lafw. */ - ret = true; + ret = TRUE; } if (conf_dsc) @@ -146,8 +159,8 @@ static int fx2lafw_open_dev(int dev_index) libusb_device **devlist; struct libusb_device_descriptor des; struct sr_dev_inst *sdi; - struct fx2lafw_device *ctx; - int err, skip, i; + struct context *ctx; + int ret, skip, i; if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) return SR_ERR; @@ -160,13 +173,13 @@ static int fx2lafw_open_dev(int dev_index) 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); + if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { + sr_err("fx2lafw: failed to get device descriptor: %d", ret); continue; } - if (des.idVendor != FIRMWARE_VID - || des.idProduct != FIRMWARE_PID) + if (des.idVendor != ctx->profile->vid + || des.idProduct != ctx->profile->pid) continue; if (sdi->status == SR_ST_INITIALIZING) { @@ -186,7 +199,7 @@ 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, @@ -199,7 +212,7 @@ static int fx2lafw_open_dev(int dev_index) 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); } /* if we made it here, we handled the device one way or another */ @@ -215,7 +228,7 @@ static int fx2lafw_open_dev(int dev_index) static void close_dev(struct sr_dev_inst *sdi) { - struct fx2lafw_device *ctx; + struct context *ctx; ctx = sdi->priv; @@ -230,16 +243,62 @@ static void close_dev(struct sr_dev_inst *sdi) sdi->status = SR_ST_INACTIVE; } -static struct fx2lafw_device* fx2lafw_device_new(void) +static int configure_probes(struct context *ctx, GSList *probes) { - struct fx2lafw_device *fx2lafw; + struct sr_probe *probe; + GSList *l; + int probe_bit, stage, i; + char *tc; - if (!(fx2lafw = g_try_malloc0(sizeof(struct fx2lafw_device)))) { - sr_err("fx2lafw: %s: fx2lafw_device malloc failed", __func__); + 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_device_new(void) +{ + struct context *ctx; + + if (!(ctx = g_try_malloc0(sizeof(struct context)))) { + sr_err("fx2lafw: %s: ctx malloc failed", __func__); return NULL; } - return fx2lafw; + ctx->trigger_stage = TRIGGER_FIRED; + + return ctx; } /* @@ -250,10 +309,10 @@ static int hw_init(const char *deviceinfo) { struct sr_dev_inst *sdi; struct libusb_device_descriptor des; - struct fx2lafw_profile *fx2lafw_prof; - struct fx2lafw_device *ctx; + const struct fx2lafw_profile *fx2lafw_prof; + struct context *ctx; libusb_device **devlist; - int err; + int ret; int devcnt = 0; int i, j; @@ -269,9 +328,9 @@ static int hw_init(const char *deviceinfo) libusb_get_device_list(usb_context, &devlist); for (i = 0; devlist[i]; i++) { - if ((err = libusb_get_device_descriptor( + if ((ret = libusb_get_device_descriptor( devlist[i], &des)) != 0) { - sr_warn("failed to get device descriptor: %d", err); + sr_warn("failed to get device descriptor: %d", ret); continue; } @@ -296,7 +355,7 @@ static int hw_init(const char *deviceinfo) ctx = fx2lafw_device_new(); ctx->profile = fx2lafw_prof; sdi->priv = ctx; - device_instances = g_slist_append(dev_insts, sdi); + dev_insts = g_slist_append(dev_insts, sdi); if (check_conf_profile(devlist[i])) { /* Already has the firmware, so fix the new address. */ @@ -306,7 +365,8 @@ static int hw_init(const char *deviceinfo) (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, + fx2lafw_prof->firmware) == SR_OK) /* Remember when the firmware on this device was updated */ g_get_current_time(&ctx->fw_updated); else @@ -323,14 +383,14 @@ static int hw_init(const char *deviceinfo) return devcnt; } -static int hw_dev_open(int device_index) +static int hw_dev_open(int dev_index) { GTimeVal cur_time; struct sr_dev_inst *sdi; - struct fx2lafw_device *ctx; - int timediff, err; + struct context *ctx; + int timediff, ret; - if (!(sdi = sr_dev_inst_get(dev_insts, device_index))) + if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) return SR_ERR; ctx = sdi->priv; @@ -338,14 +398,14 @@ static int hw_dev_open(int device_index) * 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"); /* 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(device_index)) == SR_OK) + if ((ret = fx2lafw_open_dev(dev_index)) == SR_OK) break; g_usleep(100 * 1000); g_get_current_time(&cur_time); @@ -353,21 +413,28 @@ static int hw_dev_open(int device_index) } sr_info("fx2lafw: device came back after %d ms", timediff); } else { - err = fx2lafw_open_dev(device_index); + ret = fx2lafw_open_dev(dev_index); } - if (err != SR_OK) { + 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, + &supported_samplerates[0]) == SR_ERR) + return SR_ERR; + } + return SR_OK; } @@ -377,7 +444,7 @@ static int hw_dev_close(int dev_index) if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) { sr_err("fx2lafw: %s: sdi was NULL", __func__); - return SR_ERR; /* TODO: SR_ERR_ARG? */ + return SR_ERR_BUG; } /* TODO */ @@ -390,7 +457,7 @@ static int hw_cleanup(void) { GSList *l; struct sr_dev_inst *sdi; - struct fx2lafw_device *ctx; + struct context *ctx; int ret = SR_OK; for(l = dev_insts; l; l = l->next) { @@ -422,16 +489,16 @@ static int hw_cleanup(void) return ret; } -static void *hw_dev_info_get(int device_index, int device_info_id) +static void *hw_dev_info_get(int dev_index, int dev_info_id) { struct sr_dev_inst *sdi; - struct fx2lafw_device *ctx; + struct context *ctx; - if (!(sdi = sr_dev_inst_get(dev_insts, device_index))) + if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) return NULL; ctx = sdi->priv; - switch (device_info_id) { + switch (dev_info_id) { case SR_DI_INST: return sdi; case SR_DI_NUM_PROBES: @@ -439,18 +506,20 @@ static void *hw_dev_info_get(int device_index, int device_info_id) case SR_DI_PROBE_NAMES: return fx2lafw_probe_names; case SR_DI_SAMPLERATES: - return &fx2lafw_samplerates; + return &samplerates; case SR_DI_TRIGGER_TYPES: return TRIGGER_TYPES; + case SR_DI_CUR_SAMPLERATE: + return &ctx->cur_samplerate; } return NULL; } -static int hw_dev_status_get(int device_index) +static int hw_dev_status_get(int dev_index) { const struct sr_dev_inst *const sdi = - sr_dev_inst_get(dev_insts, device_index); + sr_dev_inst_get(dev_insts, dev_index); if (!sdi) return SR_ST_NOT_FOUND; @@ -463,32 +532,298 @@ static int *hw_hwcap_get_all(void) return fx2lafw_capabilities; } -static int hw_dev_config_set(int dev_index, int capability, void *value) +static int hw_dev_config_set(int dev_index, int hwcap, void *value) { - (void)dev_index; - (void)capability; - (void)value; - return SR_OK; + struct sr_dev_inst *sdi; + struct context *ctx; + int ret; + + if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) + return SR_ERR; + ctx = sdi->priv; + + if (hwcap == SR_HWCAP_SAMPLERATE) { + ctx->cur_samplerate = *(uint64_t *)value; + ret = SR_OK; + } else if (hwcap == SR_HWCAP_PROBECONFIG) { + ret = configure_probes(ctx, (GSList *) value); + } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) { + ctx->limit_samples = *(uint64_t *)value; + ret = SR_OK; + } else { + ret = SR_ERR; + } + + return ret; } -static int hw_dev_acquisition_start(int dev_index, gpointer session_data) +static int receive_data(int fd, int revents, void *cb_data) { - (void)dev_index; - (void)session_data; + struct timeval tv; + + /* Avoid compiler warnings. */ + (void)fd; + (void)revents; + (void)cb_data; + + tv.tv_sec = tv.tv_usec = 0; + libusb_handle_events_timeout(usb_context, &tv); + + return TRUE; +} + +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); + + /* 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) +{ + /* TODO: These statics have to move to the ctx struct. */ + static int empty_transfer_count = 0; + struct sr_datafeed_packet packet; + struct sr_datafeed_logic logic; + struct context *ctx = transfer->user_data; + int cur_buflen, trigger_offset, i; + unsigned char *cur_buf, *new_buf; + + /* + * If acquisition has already ended, just free any queued up + * transfer that come in. + */ + 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", + transfer->status, transfer->actual_length); + + /* Save incoming transfer before reusing the transfer struct. */ + cur_buf = transfer->buffer; + cur_buflen = transfer->actual_length; + + /* Fire off a new request. */ + if (!(new_buf = g_try_malloc(4096))) { + sr_err("fx2lafw: %s: new_buf malloc failed", __func__); + return; /* TODO: SR_ERR_MALLOC */ + } + + transfer->buffer = new_buf; + transfer->length = 4096; + if (libusb_submit_transfer(transfer) != 0) { + /* TODO: Stop session? */ + /* TODO: Better error message. */ + sr_err("fx2lafw: %s: libusb_submit_transfer error", __func__); + } + + if (cur_buflen == 0) { + empty_transfer_count++; + if (empty_transfer_count > MAX_EMPTY_TRANSFERS) { + /* + * The FX2 gave up. End the acquisition, the frontend + * will work out that the samplecount is short. + */ + abort_acquisition(ctx); + } + return; + } else { + empty_transfer_count = 0; + } + + 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; + } + + /* + * 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. + */ + } +} + +static int hw_dev_acquisition_start(int dev_index, void *cb_data) +{ + struct sr_dev_inst *sdi; + struct sr_datafeed_packet *packet; + struct sr_datafeed_header *header; + struct context *ctx; + struct libusb_transfer *transfer; + const struct libusb_pollfd **lupfd; + int ret, size, i; + unsigned char *buf; + + if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) + return SR_ERR; + ctx = sdi->priv; + ctx->session_dev_id = cb_data; + ctx->num_samples = 0; + + if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) { + 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__); + return SR_ERR_MALLOC; + } + + /* 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__); + return SR_ERR_MALLOC; + } + transfer = libusb_alloc_transfer(0); + libusb_fill_bulk_transfer(transfer, ctx->usb->devhdl, + 2 | LIBUSB_ENDPOINT_IN, buf, size, + receive_transfer, ctx, 40); + if (libusb_submit_transfer(transfer) != 0) { + /* TODO: Free them all. */ + libusb_free_transfer(transfer); + g_free(buf); + return SR_ERR; + } + + ctx->submitted_transfers++; + size = 4096; + } + + lupfd = libusb_get_pollfds(usb_context); + for (i = 0; lupfd[i]; i++) + sr_source_add(lupfd[i]->fd, lupfd[i]->events, + 40, receive_data, NULL); + free(lupfd); /* NOT g_free()! */ + + packet->type = SR_DF_HEADER; + packet->payload = header; + header->feed_version = 1; + gettimeofday(&header->starttime, NULL); + header->samplerate = ctx->cur_samplerate; + header->num_logic_probes = ctx->profile->num_probes; + sr_session_send(cb_data, packet); + g_free(header); + g_free(packet); + + if ((ret = command_start_acquisition (ctx->usb->devhdl, + ctx->cur_samplerate)) != SR_OK) { + return ret; + } + return SR_OK; } -/* This stops acquisition on ALL devices, ignoring device_index. */ -static int hw_dev_acquisition_stop(int dev_index, gpointer session_data) +/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ +static int hw_dev_acquisition_stop(int dev_index, void *cb_data) { - (void)dev_index; - (void)session_data; + struct sr_dev_inst *sdi; + + /* unused parameter */ + (void)cb_data; + + if (!(sdi = sr_dev_inst_get(dev_insts, dev_index))) + return SR_ERR; + + abort_acquisition(sdi->priv); + return SR_OK; } -SR_PRIV struct sr_dev_plugin fx2lafw_plugin_info = { +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,