+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
- *
- * 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 <glib.h>
-#include <libusb.h>
-#include <stdlib.h>
-#include <string.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "protocol.h"
-
-#define LOGIC16_VID 0x21a9
-#define LOGIC16_PID 0x1001
-#define NUM_PROBES 16
-
-#define USB_INTERFACE 0
-#define USB_CONFIGURATION 1
-#define FX2_FIRMWARE FIRMWARE_DIR "/saleae-logic16-fx2.fw"
-
-#define MAX_RENUM_DELAY_MS 3000
-
-
-SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
-static struct sr_dev_driver *di = &saleae_logic16_driver_info;
-
-static const char *probe_names[NUM_PROBES + 1] = {
- "0", "1", "2", "3", "4", "5", "6", "7", "8",
- "9", "10", "11", "12", "13", "14", "15",
- NULL,
-};
-
-static int init(struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static gboolean check_conf_profile(libusb_device *dev)
-{
- struct libusb_device_descriptor des;
- struct libusb_device_handle *hdl;
- gboolean ret;
- unsigned char strdesc[64];
-
- hdl = NULL;
- ret = FALSE;
- while (!ret) {
- /* Assume the FW has not been loaded, unless proven wrong. */
- if (libusb_get_device_descriptor(dev, &des) != 0)
- break;
-
- if (libusb_open(dev, &hdl) != 0)
- break;
-
- if (libusb_get_string_descriptor_ascii(hdl,
- des.iManufacturer, strdesc, sizeof(strdesc)) < 0)
- break;
- if (strcmp((const char *)strdesc, "Saleae LLC"))
- break;
-
- if (libusb_get_string_descriptor_ascii(hdl,
- des.iProduct, strdesc, sizeof(strdesc)) < 0)
- break;
- if (strcmp((const char *)strdesc, "Logic S/16"))
- break;
-
- /* If we made it here, it must be a configured Logic16. */
- ret = TRUE;
- }
- if (hdl)
- libusb_close(hdl);
-
- return ret;
-}
-
-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_probe *probe;
- struct sr_config *src;
- GSList *l, *devices, *conn_devices;
- struct libusb_device_descriptor des;
- libusb_device **devlist;
- int devcnt, ret, i, j;
- const char *conn;
-
- 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 Logic16 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 (des.idVendor != LOGIC16_VID || des.idProduct != LOGIC16_PID)
- continue;
-
- devcnt = g_slist_length(drvc->instances);
- sdi = sr_dev_inst_new(devcnt, SR_ST_INITIALIZING,
- "Saleae", "Logic16", NULL);
- if (!sdi)
- return NULL;
- sdi->driver = di;
-
- for (j = 0; probe_names[j]; j++) {
- if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE,
- probe_names[j])))
- return NULL;
- sdi->probes = g_slist_append(sdi->probes, probe);
- }
-
- if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
- return NULL;
- sdi->priv = devc;
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
-
- if (check_conf_profile(devlist[i])) {
- /* Already has the firmware, so fix the new address. */
- sr_dbg("Found a Logic16 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,
- FX2_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)
-{
- struct drv_context *drvc;
-
- drvc = di->priv;
-
- return drvc->instances;
-}
-
-static int dev_clear(void)
-{
- return std_dev_clear(di, NULL);
-}
-
-static int logic16_dev_open(struct sr_dev_inst *sdi)
-{
- libusb_device **devlist;
- struct sr_usb_dev_inst *usb;
- struct libusb_device_descriptor des;
- struct dev_context *devc;
- struct drv_context *drvc;
- int ret, skip, i, device_count;
-
- drvc = di->priv;
- devc = sdi->priv;
- usb = sdi->conn;
-
- if (sdi->status == SR_ST_ACTIVE)
- /* Device is already in use. */
- return SR_ERR;
-
- skip = 0;
- device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist);
- if (device_count < 0) {
- sr_err("Failed to get device list: %s.",
- libusb_error_name(device_count));
- return SR_ERR;
- }
-
- for (i = 0; i < device_count; i++) {
- if ((ret = libusb_get_device_descriptor(devlist[i], &des))) {
- sr_err("Failed to get device descriptor: %s.",
- libusb_error_name(ret));
- continue;
- }
-
- if (des.idVendor != LOGIC16_VID
- || des.idProduct != LOGIC16_PID)
- continue;
-
- if (sdi->status == SR_ST_INITIALIZING) {
- if (skip != sdi->index) {
- /* Skip devices of this type that aren't the one we want. */
- skip += 1;
- continue;
- }
- } else if (sdi->status == SR_ST_INACTIVE) {
- /*
- * This device is fully enumerated, so we need to find
- * this device by vendor, product, bus and address.
- */
- if (libusb_get_bus_number(devlist[i]) != usb->bus
- || libusb_get_device_address(devlist[i]) != usb->address)
- /* This is not the one. */
- continue;
- }
-
- if (!(ret = libusb_open(devlist[i], &usb->devhdl))) {
- if (usb->address == 0xff)
- /*
- * First time we touch this device after FW
- * upload, so we don't know the address yet.
- */
- usb->address = libusb_get_device_address(devlist[i]);
- } else {
- sr_err("Failed to open device: %s.",
- libusb_error_name(ret));
- break;
- }
-
- if ((ret = saleae_logic16_init_device(sdi)) != SR_OK) {
- sr_err("Failed to init device.");
- break;
- }
-
- sdi->status = SR_ST_ACTIVE;
- sr_info("Opened device %d on %d.%d, "
- "interface %d.",
- sdi->index, usb->bus, usb->address,
- USB_INTERFACE);
-
- break;
- }
- libusb_free_device_list(devlist, 1);
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- return SR_OK;
-}
-
-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 = logic16_dev_open(sdi)) == 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 = logic16_dev_open(sdi);
- }
-
- 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 = 500000;
- }
-
- 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("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))
- /* Can get called on an unused driver, doesn't matter. */
- return SR_OK;
-
- ret = dev_clear();
- g_free(drvc);
- di->priv = NULL;
-
- return ret;
-}
-
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
-{
- int ret;
-
- (void)sdi;
- (void)data;
-
- ret = SR_OK;
- switch (key) {
- /* TODO */
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
-{
- int ret;
-
- (void)data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- ret = SR_OK;
- switch (key) {
- /* TODO */
- default:
- ret = SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
-{
- int ret;
-
- (void)sdi;
- (void)data;
-
- ret = SR_OK;
- switch (key) {
- /* TODO */
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
- (void)sdi;
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- /* TODO: stop acquisition. */
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver saleae_logic16_driver_info = {
- .name = "saleae-logic16",
- .longname = "Saleae Logic16",
- .api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
- .dev_clear = dev_clear,
- .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,
-};
projects / libsigrok.git / blobdiff