+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
- *
- * 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 <http://www.gnu.org/licenses/>.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/time.h>
-#include <inttypes.h>
-#include <glib.h>
-#include <libusb.h>
-#include "config.h"
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "analyzer.h"
-
-#define USB_VENDOR 0x0c12
-
-#define VENDOR_NAME "ZEROPLUS"
-#define MODEL_NAME "Logic Cube LAP-C"
-#define MODEL_VERSION NULL
-
-#define NUM_PROBES 16
-#define USB_INTERFACE 0
-#define USB_CONFIGURATION 1
-#define NUM_TRIGGER_STAGES 4
-#define TRIGGER_TYPES "01"
-
-#define PACKET_SIZE 2048 /* ?? */
-
-typedef struct {
- unsigned short pid;
- char model_name[64];
- unsigned int channels;
- unsigned int sample_depth; /* In Ksamples/channel */
- unsigned int max_sampling_freq;
-} model_t;
-
-/*
- * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the
- * same 128K sample depth.
- */
-static model_t zeroplus_models[] = {
- {0x7009, "LAP-C(16064)", 16, 64, 100},
- {0x700A, "LAP-C(16128)", 16, 128, 200},
- {0x700B, "LAP-C(32128)", 32, 128, 200},
- {0x700C, "LAP-C(321000)", 32, 1024, 200},
- {0x700D, "LAP-C(322000)", 32, 2048, 200},
- {0x700E, "LAP-C(16032)", 16, 32, 100},
- {0x7016, "LAP-C(162000)", 16, 2048, 200},
-};
-
-static const int hwcaps[] = {
- SR_HWCAP_LOGIC_ANALYZER,
- SR_HWCAP_SAMPLERATE,
- SR_HWCAP_PROBECONFIG,
- SR_HWCAP_CAPTURE_RATIO,
-
- /* These are really implemented in the driver, not the hardware. */
- SR_HWCAP_LIMIT_SAMPLES,
- 0,
-};
-
-/*
- * ZEROPLUS LAP-C (16032) numbers the 16 probes A0-A7 and B0-B7.
- * We currently ignore other untested/unsupported devices here.
- */
-static const char *probe_names[NUM_PROBES + 1] = {
- "A0",
- "A1",
- "A2",
- "A3",
- "A4",
- "A5",
- "A6",
- "A7",
- "B0",
- "B1",
- "B2",
- "B3",
- "B4",
- "B5",
- "B6",
- "B7",
- NULL,
-};
-
-/* List of struct sr_dev_inst, maintained by dev_open()/dev_close(). */
-SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info;
-static struct sr_dev_driver *zdi = &zeroplus_logic_cube_driver_info;
-
-static libusb_context *usb_context = NULL;
-
-/*
- * The hardware supports more samplerates than these, but these are the
- * options hardcoded into the vendor's Windows GUI.
- */
-
-/*
- * TODO: We shouldn't support 150MHz and 200MHz on devices that don't go up
- * that high.
- */
-static const uint64_t supported_samplerates[] = {
- SR_HZ(100),
- SR_HZ(500),
- SR_KHZ(1),
- SR_KHZ(5),
- SR_KHZ(25),
- SR_KHZ(50),
- SR_KHZ(100),
- SR_KHZ(200),
- SR_KHZ(400),
- SR_KHZ(800),
- SR_MHZ(1),
- SR_MHZ(10),
- SR_MHZ(25),
- SR_MHZ(50),
- SR_MHZ(80),
- SR_MHZ(100),
- SR_MHZ(150),
- SR_MHZ(200),
- 0,
-};
-
-static const struct sr_samplerates samplerates = {
- 0,
- 0,
- 0,
- supported_samplerates,
-};
-
-/* Private, per-device-instance driver context. */
-struct context {
- uint64_t cur_samplerate;
- uint64_t limit_samples;
- int num_channels; /* TODO: This isn't initialized before it's needed :( */
- uint64_t memory_size;
- uint8_t probe_mask;
- uint8_t trigger_mask[NUM_TRIGGER_STAGES];
- uint8_t trigger_value[NUM_TRIGGER_STAGES];
- // uint8_t trigger_buffer[NUM_TRIGGER_STAGES];
-
- /* TODO: this belongs in the device instance */
- struct sr_usb_dev_inst *usb;
-};
-
-static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
- const void *value);
-static int hw_dev_close(struct sr_dev_inst *sdi);
-
-static unsigned int get_memory_size(int type)
-{
- if (type == MEMORY_SIZE_8K)
- return 8 * 1024;
- else if (type == MEMORY_SIZE_64K)
- return 64 * 1024;
- else if (type == MEMORY_SIZE_128K)
- return 128 * 1024;
- else if (type == MEMORY_SIZE_512K)
- return 512 * 1024;
- else
- return 0;
-}
-
-static int opendev4(struct sr_dev_inst **sdi, libusb_device *dev,
- struct libusb_device_descriptor *des)
-{
- struct context *ctx;
- unsigned int i;
- int ret;
-
- /* Note: sdi is non-NULL, the caller already checked this. */
-
- if (!(ctx = (*sdi)->priv)) {
- sr_err("zp: %s: (*sdi)->priv was NULL", __func__);
- return -1;
- }
-
- if ((ret = libusb_get_device_descriptor(dev, des))) {
- sr_err("zp: failed to get device descriptor: %d", ret);
- return -1;
- }
-
- if (des->idVendor != USB_VENDOR)
- return 0;
-
- if (libusb_get_bus_number(dev) == ctx->usb->bus
- && libusb_get_device_address(dev) == ctx->usb->address) {
-
- for (i = 0; i < ARRAY_SIZE(zeroplus_models); i++) {
- if (!(des->idProduct == zeroplus_models[i].pid))
- continue;
-
- sr_info("zp: Found ZEROPLUS device 0x%04x (%s)",
- des->idProduct, zeroplus_models[i].model_name);
- ctx->num_channels = zeroplus_models[i].channels;
- ctx->memory_size = zeroplus_models[i].sample_depth * 1024;
- break;
- }
-
- if (ctx->num_channels == 0) {
- sr_err("zp: Unknown ZEROPLUS device 0x%04x",
- des->idProduct);
- return -2;
- }
-
- /* Found it. */
- if (!(ret = libusb_open(dev, &(ctx->usb->devhdl)))) {
- (*sdi)->status = SR_ST_ACTIVE;
- sr_info("zp: opened device %d on %d.%d interface %d",
- (*sdi)->index, ctx->usb->bus,
- ctx->usb->address, USB_INTERFACE);
- } else {
- sr_err("zp: failed to open device: %d", ret);
- *sdi = NULL;
- }
- }
-
- return 0;
-}
-
-static struct sr_dev_inst *zp_open_dev(int dev_index)
-{
- struct sr_dev_inst *sdi;
- libusb_device **devlist;
- struct libusb_device_descriptor des;
- int i;
-
- if (!(sdi = sr_dev_inst_get(zdi->instances, dev_index)))
- return NULL;
-
- libusb_get_device_list(usb_context, &devlist);
- if (sdi->status == SR_ST_INACTIVE) {
- /* Find the device by vendor, product, bus and address. */
- libusb_get_device_list(usb_context, &devlist);
- for (i = 0; devlist[i]; i++) {
- /* TODO: Error handling. */
- opendev4(&sdi, devlist[i], &des);
- }
- } else {
- /* Status must be SR_ST_ACTIVE, i.e. already in use... */
- sdi = NULL;
- }
- libusb_free_device_list(devlist, 1);
-
- if (sdi && sdi->status != SR_ST_ACTIVE)
- sdi = NULL;
-
- return sdi;
-}
-
-static int configure_probes(const struct sr_dev_inst *sdi, const GSList *probes)
-{
- struct context *ctx;
- const struct sr_probe *probe;
- const GSList *l;
- int probe_bit, stage, i;
- char *tc;
-
- /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */
- ctx = sdi->priv;
-
- ctx->probe_mask = 0;
- 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);
- ctx->probe_mask |= probe_bit;
-
- if (probe->trigger) {
- 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;
- }
- }
- }
-
- return SR_OK;
-}
-
-static void clear_instances(void)
-{
- GSList *l;
- struct sr_dev_inst *sdi;
-
- for (l = zdi->instances; l; l = l->next) {
- sdi = l->data;
- /* Properly close all devices... */
- hw_dev_close(sdi);
- /* ...and free all their memory. */
- sr_dev_inst_free(sdi);
- }
- g_slist_free(zdi->instances);
- zdi->instances = NULL;
-
-}
-
-/*
- * API callbacks
- */
-
-static int hw_init(void)
-{
-
- if (libusb_init(&usb_context) != 0) {
- sr_err("zp: Failed to initialize USB.");
- return 0;
- }
-
- return SR_OK;
-}
-
-static GSList *hw_scan(GSList *options)
-{
- struct sr_dev_inst *sdi;
- struct libusb_device_descriptor des;
- GSList *devices;
- libusb_device **devlist;
- int ret, devcnt, i;
- struct context *ctx;
-
- (void)options;
- devices = NULL;
-
- clear_instances();
-
- /* Allocate memory for our private driver context. */
- if (!(ctx = g_try_malloc(sizeof(struct context)))) {
- sr_err("zp: %s: ctx malloc failed", __func__);
- return 0;
- }
-
- /* Set some sane defaults. */
- ctx->cur_samplerate = 0;
- ctx->limit_samples = 0;
- /* TODO: num_channels isn't initialized before it's needed :( */
- ctx->num_channels = NUM_PROBES;
- ctx->memory_size = 0;
- ctx->probe_mask = 0;
- memset(ctx->trigger_mask, 0, NUM_TRIGGER_STAGES);
- memset(ctx->trigger_value, 0, NUM_TRIGGER_STAGES);
- // memset(ctx->trigger_buffer, 0, NUM_TRIGGER_STAGES);
-
- /* Find all ZEROPLUS analyzers and add them to device list. */
- devcnt = 0;
- libusb_get_device_list(usb_context, &devlist); /* TODO: Errors. */
-
- for (i = 0; devlist[i]; i++) {
- ret = libusb_get_device_descriptor(devlist[i], &des);
- if (ret != 0) {
- sr_err("zp: failed to get device descriptor: %d", ret);
- continue;
- }
-
- if (des.idVendor == USB_VENDOR) {
- /*
- * Definitely a ZEROPLUS.
- * TODO: Any way to detect specific model/version in
- * the ZEROPLUS range?
- */
- /* Register the device with libsigrok. */
- if (!(sdi = sr_dev_inst_new(devcnt,
- SR_ST_INACTIVE, VENDOR_NAME,
- MODEL_NAME, MODEL_VERSION))) {
- sr_err("zp: %s: sr_dev_inst_new failed",
- __func__);
- return 0;
- }
- sdi->driver = zdi;
- sdi->priv = ctx;
-
- devices = g_slist_append(devices, sdi);
- zdi->instances = g_slist_append(zdi->instances, sdi);
- ctx->usb = sr_usb_dev_inst_new(
- libusb_get_bus_number(devlist[i]),
- libusb_get_device_address(devlist[i]), NULL);
- devcnt++;
- }
- }
- libusb_free_device_list(devlist, 1);
-
- return devices;
-}
-
-static int hw_dev_open(struct sr_dev_inst *sdi)
-{
- struct context *ctx;
- int ret;
-
- if (!(ctx = sdi->priv)) {
- sr_err("zp: %s: sdi->priv was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- ret = libusb_set_configuration(ctx->usb->devhdl, USB_CONFIGURATION);
- if (ret < 0) {
- sr_err("zp: Unable to set USB configuration %d: %d",
- USB_CONFIGURATION, ret);
- return SR_ERR;
- }
-
- ret = libusb_claim_interface(ctx->usb->devhdl, USB_INTERFACE);
- if (ret != 0) {
- sr_err("zp: Unable to claim interface: %d", ret);
- return SR_ERR;
- }
-
- analyzer_reset(ctx->usb->devhdl);
- analyzer_initialize(ctx->usb->devhdl);
-
- analyzer_set_memory_size(MEMORY_SIZE_512K);
- // analyzer_set_freq(g_freq, g_freq_scale);
- analyzer_set_trigger_count(1);
- // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger)
- // * get_memory_size(g_memory_size)) / 100) >> 2);
- analyzer_set_ramsize_trigger_address(
- (100 * get_memory_size(MEMORY_SIZE_512K) / 100) >> 2);
-
-#if 0
- if (g_double_mode == 1)
- analyzer_set_compression(COMPRESSION_DOUBLE);
- else if (g_compression == 1)
- analyzer_set_compression(COMPRESSION_ENABLE);
- else
-#endif
- analyzer_set_compression(COMPRESSION_NONE);
-
- if (ctx->cur_samplerate == 0) {
- /* Samplerate hasn't been set. Default to the slowest one. */
- if (hw_dev_config_set(sdi, SR_HWCAP_SAMPLERATE,
- &samplerates.list[0]) == SR_ERR)
- return SR_ERR;
- }
-
- return SR_OK;
-}
-
-static int hw_dev_close(struct sr_dev_inst *sdi)
-{
- struct context *ctx;
-
- if (!(ctx = sdi->priv)) {
- sr_err("zp: %s: sdi->priv was NULL", __func__);
- return SR_ERR;
- }
-
- if (!ctx->usb->devhdl)
- return SR_ERR;
-
- sr_info("zp: 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_reset_device(ctx->usb->devhdl);
- libusb_close(ctx->usb->devhdl);
- ctx->usb->devhdl = NULL;
- sdi->status = SR_ST_INACTIVE;
-
- return SR_OK;
-}
-
-static int hw_cleanup(void)
-{
-
- clear_instances();
-
- if (usb_context)
- libusb_exit(usb_context);
- usb_context = NULL;
-
- return SR_OK;
-}
-
-static int hw_info_get(int info_id, const void **data,
- const struct sr_dev_inst *sdi)
-{
- struct context *ctx;
-
- switch (info_id) {
- case SR_DI_INST:
- *data = sdi;
- sr_spew("zp: %s: Returning sdi.", __func__);
- break;
- case SR_DI_HWCAPS:
- *data = hwcaps;
- break;
- case SR_DI_NUM_PROBES:
- if (sdi) {
- ctx = sdi->priv;
- *data = GINT_TO_POINTER(ctx->num_channels);
- sr_spew("zp: %s: Returning number of channels: %d.",
- __func__, ctx->num_channels);
- } else
- return SR_ERR;
- break;
- case SR_DI_PROBE_NAMES:
- *data = probe_names;
- sr_spew("zp: %s: Returning probenames.", __func__);
- break;
- case SR_DI_SAMPLERATES:
- *data = &samplerates;
- sr_spew("zp: %s: Returning samplerates.", __func__);
- break;
- case SR_DI_TRIGGER_TYPES:
- *data = TRIGGER_TYPES;
- sr_spew("zp: %s: Returning triggertypes: %s.", __func__, TRIGGER_TYPES);
- break;
- case SR_DI_CUR_SAMPLERATE:
- if (sdi) {
- ctx = sdi->priv;
- *data = &ctx->cur_samplerate;
- sr_spew("zp: %s: Returning samplerate: %" PRIu64 "Hz.",
- __func__, ctx->cur_samplerate);
- } else
- return SR_ERR;
- break;
- default:
- return SR_ERR_ARG;
- }
-
- return SR_OK;
-}
-
-static int hw_dev_status_get(int dev_index)
-{
- struct sr_dev_inst *sdi;
-
- sdi = sr_dev_inst_get(zdi->instances, dev_index);
- if (sdi)
- return sdi->status;
- else
- return SR_ST_NOT_FOUND;
-}
-
-static int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
-{
- struct context *ctx;
-
- if (!sdi) {
- sr_err("zp: %s: sdi was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!(ctx = sdi->priv)) {
- sr_err("zp: %s: sdi->priv was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- sr_info("zp: Setting samplerate to %" PRIu64 "Hz.", samplerate);
-
- if (samplerate > SR_MHZ(1))
- analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ);
- else if (samplerate > SR_KHZ(1))
- analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ);
- else
- analyzer_set_freq(samplerate, FREQ_SCALE_HZ);
-
- ctx->cur_samplerate = samplerate;
-
- return SR_OK;
-}
-
-static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
- const void *value)
-{
- struct context *ctx;
-
- if (!(ctx = sdi->priv)) {
- sr_err("zp: %s: sdi->priv was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- switch (hwcap) {
- case SR_HWCAP_SAMPLERATE:
- return set_samplerate(sdi, *(const uint64_t *)value);
- case SR_HWCAP_PROBECONFIG:
- return configure_probes(sdi, (const GSList *)value);
- case SR_HWCAP_LIMIT_SAMPLES:
- ctx->limit_samples = *(const uint64_t *)value;
- return SR_OK;
- default:
- return SR_ERR;
- }
-}
-
-static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
- struct sr_datafeed_packet packet;
- struct sr_datafeed_logic logic;
- struct sr_datafeed_header header;
- struct sr_datafeed_meta_logic meta;
- uint64_t samples_read;
- int res;
- unsigned int packet_num;
- unsigned char *buf;
- struct context *ctx;
-
- if (!(ctx = sdi->priv)) {
- sr_err("zp: %s: sdi->priv was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- /* push configured settings to device */
- analyzer_configure(ctx->usb->devhdl);
-
- analyzer_start(ctx->usb->devhdl);
- sr_info("zp: Waiting for data");
- analyzer_wait_data(ctx->usb->devhdl);
-
- sr_info("zp: Stop address = 0x%x",
- analyzer_get_stop_address(ctx->usb->devhdl));
- sr_info("zp: Now address = 0x%x",
- analyzer_get_now_address(ctx->usb->devhdl));
- sr_info("zp: Trigger address = 0x%x",
- analyzer_get_trigger_address(ctx->usb->devhdl));
-
- packet.type = SR_DF_HEADER;
- packet.payload = &header;
- header.feed_version = 1;
- gettimeofday(&header.starttime, NULL);
- sr_session_send(cb_data, &packet);
-
- /* Send metadata about the SR_DF_LOGIC packets to come. */
- packet.type = SR_DF_META_LOGIC;
- packet.payload = &meta;
- meta.samplerate = ctx->cur_samplerate;
- meta.num_probes = ctx->num_channels;
- sr_session_send(cb_data, &packet);
-
- if (!(buf = g_try_malloc(PACKET_SIZE))) {
- sr_err("zp: %s: buf malloc failed", __func__);
- return SR_ERR_MALLOC;
- }
-
- samples_read = 0;
- analyzer_read_start(ctx->usb->devhdl);
- /* Send the incoming transfer to the session bus. */
- for (packet_num = 0; packet_num < (ctx->memory_size * 4 / PACKET_SIZE);
- packet_num++) {
- res = analyzer_read_data(ctx->usb->devhdl, buf, PACKET_SIZE);
- sr_info("zp: Tried to read %llx bytes, actually read %x bytes",
- PACKET_SIZE, res);
-
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- logic.length = PACKET_SIZE;
- logic.unitsize = 4;
- logic.data = buf;
- sr_session_send(cb_data, &packet);
- samples_read += res / 4;
- }
- analyzer_read_stop(ctx->usb->devhdl);
- g_free(buf);
-
- packet.type = SR_DF_END;
- sr_session_send(cb_data, &packet);
-
- return SR_OK;
-}
-
-/* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
-static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
- struct sr_datafeed_packet packet;
- struct context *ctx;
-
- packet.type = SR_DF_END;
- sr_session_send(cb_data, &packet);
-
- if (!(ctx = sdi->priv)) {
- sr_err("zp: %s: sdi->priv was NULL", __func__);
- return SR_ERR_BUG;
- }
-
- analyzer_reset(ctx->usb->devhdl);
- /* TODO: Need to cancel and free any queued up transfers. */
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = {
- .name = "zeroplus-logic-cube",
- .longname = "ZEROPLUS Logic Cube LAP-C series",
- .api_version = 1,
- .init = hw_init,
- .cleanup = hw_cleanup,
- .scan = hw_scan,
- .dev_open = hw_dev_open,
- .dev_close = hw_dev_close,
- .info_get = hw_info_get,
- .dev_status_get = hw_dev_status_get,
- .dev_config_set = hw_dev_config_set,
- .dev_acquisition_start = hw_dev_acquisition_start,
- .dev_acquisition_stop = hw_dev_acquisition_stop,
- .instances = NULL,
-};
projects / libsigrok.git / blobdiff