ft2232h: Add support for FTDI FT2232H/FT232R chip as LA.
This closes bug #780.
This commit is contained in:
Sergey Alirzaev
Uwe Hermann
parent
625430bf88
commit
4f7fdcdd74
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@ -269,6 +269,12 @@ libsigrok_la_SOURCES += \
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src/hardware/fluke-dmm/fluke.c \
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src/hardware/fluke-dmm/api.c
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endif
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if HW_FT2232H
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libsigrok_la_SOURCES += \
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src/hardware/ft2232h/protocol.h \
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src/hardware/ft2232h/protocol.c \
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src/hardware/ft2232h/api.c
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endif
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if HW_FX2LAFW
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libsigrok_la_SOURCES += \
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src/hardware/fx2lafw/protocol.h \
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@ -232,6 +232,7 @@ SR_DRIVER([Conrad DIGI 35 CPU], [conrad-digi-35-cpu], [libserialport])
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SR_DRIVER([DER EE DE-5000], [deree-de5000], [libserialport])
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SR_DRIVER([demo], [demo])
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SR_DRIVER([Fluke DMM], [fluke-dmm], [libserialport])
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SR_DRIVER([FTDI FT2232H], [ft2232h], [libftdi])
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SR_DRIVER([fx2lafw], [fx2lafw], [libusb])
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SR_DRIVER([GMC MH 1x/2x], [gmc-mh-1x-2x], [libserialport])
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SR_DRIVER([GW Instek GDS-800], [gwinstek-gds-800], [libserialport])
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@ -74,6 +74,9 @@ extern SR_PRIV struct sr_dev_driver deree_de5000_driver_info;
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#ifdef HAVE_HW_FLUKE_DMM
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extern SR_PRIV struct sr_dev_driver flukedmm_driver_info;
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#endif
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#ifdef HAVE_HW_FT2232H
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extern SR_PRIV struct sr_dev_driver ft2232h_driver_info;
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#endif
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#ifdef HAVE_HW_FX2LAFW
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extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
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#endif
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@ -244,6 +247,9 @@ SR_PRIV struct sr_dev_driver **drivers_lists[] = {
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#ifdef HAVE_HW_FLUKE_DMM
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(DRVS) {&flukedmm_driver_info, NULL},
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#endif
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#ifdef HAVE_HW_FT2232H
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(DRVS) {&ft2232h_driver_info, NULL},
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#endif
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#ifdef HAVE_HW_FX2LAFW
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(DRVS) {&fx2lafw_driver_info, NULL},
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#endif
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@ -0,0 +1,457 @@
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/*
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* This file is part of the libsigrok project.
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*
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* Copyright (C) 2015 Sergey Alirzaev <zl29ah@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <ftdi.h>
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#include <libusb.h>
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#include "protocol.h"
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SR_PRIV struct sr_dev_driver ft2232h_driver_info;
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static const uint32_t scanopts[] = {
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/* TODO: SR_CONF_CONN to be able to specify the USB address. */
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};
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static const uint32_t devopts[] = {
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SR_CONF_LOGIC_ANALYZER,
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SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
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SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
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};
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static const uint64_t samplerates[] = {
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SR_HZ(3600),
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SR_MHZ(10),
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SR_HZ(1),
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};
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static const struct ftdi_chip_desc ft2232h_desc = {
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.vendor = 0x0403,
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.product = 0x6010,
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.samplerate_div = 20,
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.channel_names = {
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"ADBUS0",
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"ADBUS1",
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"ADBUS2",
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"ADBUS3",
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"ADBUS4",
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"ADBUS5",
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"ADBUS6",
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"ADBUS7",
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/* TODO: BDBUS[0..7] channels. */
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NULL
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}
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};
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static const struct ftdi_chip_desc ft232r_desc = {
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.vendor = 0x0403,
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.product = 0x6001,
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.samplerate_div = 30,
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.channel_names = {
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"TXD",
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"RI#",
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"DCD#",
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"DSR#",
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"DTR#",
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"CTS#",
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"RTS#",
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"RXD",
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NULL
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}
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};
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static const struct ftdi_chip_desc *chip_descs[] = {
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&ft2232h_desc,
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&ft232r_desc,
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};
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static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
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{
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return std_init(sr_ctx, di, LOG_PREFIX);
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}
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static GSList *scan(struct sr_dev_driver *di, GSList *options)
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{
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struct drv_context *drvc;
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struct dev_context *devc;
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struct sr_dev_inst *sdi;
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GSList *devices;
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struct ftdi_device_list *devlist = 0;
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struct ftdi_device_list *curdev;
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struct libusb_device_descriptor usb_desc;
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const struct ftdi_chip_desc *desc;
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char *vendor, *model, *serial_num;
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int ret;
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(void)options;
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devices = NULL;
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drvc = di->context;
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drvc->instances = NULL;
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/* Allocate memory for our private device context. */
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devc = g_malloc0(sizeof(struct dev_context));
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/* Allocate memory for the incoming data. */
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devc->data_buf = g_malloc0(DATA_BUF_SIZE);
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/* Allocate memory for the FTDI context (ftdic) and initialize it. */
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devc->ftdic = ftdi_new();
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if (!devc->ftdic) {
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sr_err("Failed to initialize libftdi.");
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goto err_free_data_buf;
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}
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ret = ftdi_usb_find_all(devc->ftdic, &devlist, 0, 0);
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if (ret < 0) {
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sr_err("Failed to list devices (%d): %s", ret,
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ftdi_get_error_string(devc->ftdic));
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goto err_free_ftdic;
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}
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sr_dbg("Number of FTDI devices found: %d", ret);
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curdev = devlist;
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while (curdev) {
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libusb_get_device_descriptor(curdev->dev, &usb_desc);
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desc = NULL;
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for (unsigned long i = 0; i < ARRAY_SIZE(chip_descs); i++) {
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desc = chip_descs[i];
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if (desc->vendor == usb_desc.idVendor &&
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desc->product == usb_desc.idProduct)
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break;
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}
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if (!desc) {
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sr_spew("Unsupported FTDI device 0x%4x:0x%4x.",
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usb_desc.idVendor, usb_desc.idProduct);
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continue;
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}
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devc->usbdev = curdev->dev;
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devc->desc = desc;
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vendor = g_malloc(32);
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model = g_malloc(32);
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serial_num = g_malloc(32);
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ftdi_usb_get_strings(devc->ftdic, curdev->dev, vendor, 32,
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model, 32, serial_num, 32);
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sr_dbg("Found an FTDI device: %s.", model);
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/* Register the device with libsigrok. */
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sdi = g_malloc0(sizeof(struct sr_dev_inst));
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sdi->status = SR_ST_INITIALIZING;
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sdi->vendor = vendor;
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sdi->model = model;
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sdi->serial_num = serial_num;
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sdi->driver = di;
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sdi->priv = devc;
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for (char *const *chan = &(desc->channel_names[0]); *chan; chan++)
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sr_channel_new(sdi, &(desc->channel_names[0]) - chan,
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SR_CHANNEL_LOGIC, TRUE, *chan);
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devices = g_slist_append(devices, sdi);
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drvc->instances = g_slist_append(drvc->instances, sdi);
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curdev = curdev->next;
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}
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return devices;
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err_free_ftdic:
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ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
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err_free_data_buf:
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g_free(devc->data_buf);
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g_free(devc);
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return NULL;
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}
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static GSList *dev_list(const struct sr_dev_driver *di)
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{
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return ((struct drv_context *)(di->context))->instances;
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}
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static void clear_helper(void *priv)
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{
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struct dev_context *devc;
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devc = priv;
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ftdi_free(devc->ftdic);
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g_free(devc->data_buf);
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g_free(devc);
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}
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static int dev_clear(const struct sr_dev_driver *di)
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{
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return std_dev_clear(di, clear_helper);
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}
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static int dev_open(struct sr_dev_inst *sdi)
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{
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struct dev_context *devc;
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int ret = SR_OK;
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devc = sdi->priv;
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ret = ftdi_usb_open_dev(devc->ftdic, devc->usbdev);
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if (ret < 0) {
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/* Log errors, except for -3 ("device not found"). */
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if (ret != -3)
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sr_err("Failed to open device (%d): %s", ret,
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ftdi_get_error_string(devc->ftdic));
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return SR_ERR;
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}
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/* Purge RX/TX buffers in the FTDI chip. */
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ret = ftdi_usb_purge_buffers(devc->ftdic);
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if (ret < 0) {
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sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
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ret, ftdi_get_error_string(devc->ftdic));
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goto err_dev_open_close_ftdic;
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}
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sr_dbg("FTDI chip buffers purged successfully.");
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/* Reset the FTDI bitmode. */
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ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_RESET);
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if (ret < 0) {
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sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
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ret, ftdi_get_error_string(devc->ftdic));
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goto err_dev_open_close_ftdic;
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}
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sr_dbg("FTDI chip bitmode reset successfully.");
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ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_BITBANG);
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if (ret < 0) {
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sr_err("Failed to put FTDI chip into bitbang mode (%d): %s.",
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ret, ftdi_get_error_string(devc->ftdic));
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goto err_dev_open_close_ftdic;
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}
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sr_dbg("FTDI chip bitbang mode entered successfully.");
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sdi->status = SR_ST_ACTIVE;
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return SR_OK;
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err_dev_open_close_ftdic:
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ftdi_usb_close(devc->ftdic);
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return SR_ERR;
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}
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static int dev_close(struct sr_dev_inst *sdi)
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{
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struct dev_context *devc;
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devc = sdi->priv;
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ftdi_usb_close(devc->ftdic);
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sdi->status = SR_ST_INACTIVE;
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return SR_OK;
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}
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static int cleanup(const struct sr_dev_driver *di)
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{
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dev_clear(di);
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/* TODO: Free other driver resources, if any. */
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return SR_OK;
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}
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static int config_get(uint32_t key, GVariant **data,
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const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
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{
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int ret;
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struct dev_context *devc;
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(void)cg;
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devc = sdi->priv;
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ret = SR_OK;
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switch (key) {
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case SR_CONF_SAMPLERATE:
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*data = g_variant_new_uint64(devc->cur_samplerate);
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break;
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default:
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return SR_ERR_NA;
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}
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return ret;
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}
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static int ft2232h_set_samplerate(struct dev_context *devc)
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{
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int ret;
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ret = ftdi_set_baudrate(devc->ftdic,
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devc->cur_samplerate / devc->desc->samplerate_div);
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if (ret < 0) {
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sr_err("Failed to set baudrate (%d): %s.", devc->cur_samplerate,
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ftdi_get_error_string(devc->ftdic));
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return SR_ERR;
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}
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return SR_OK;
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}
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static int config_set(uint32_t key, GVariant *data,
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const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
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{
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int ret;
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struct dev_context *devc;
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uint64_t value;
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(void)cg;
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if (sdi->status != SR_ST_ACTIVE)
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return SR_ERR_DEV_CLOSED;
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devc = sdi->priv;
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ret = SR_OK;
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switch (key) {
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case SR_CONF_LIMIT_MSEC:
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value = g_variant_get_uint64(data);
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/* TODO: Implement. */
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ret = SR_ERR_NA;
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break;
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case SR_CONF_LIMIT_SAMPLES:
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if (g_variant_get_uint64(data) == 0)
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return SR_ERR_ARG;
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devc->limit_samples = g_variant_get_uint64(data);
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break;
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case SR_CONF_SAMPLERATE:
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value = g_variant_get_uint64(data);
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if (value < 3600)
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return SR_ERR_SAMPLERATE;
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devc->cur_samplerate = value;
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return ft2232h_set_samplerate(devc);
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default:
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ret = SR_ERR_NA;
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}
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return ret;
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}
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static int config_list(uint32_t key, GVariant **data,
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const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
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{
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int ret;
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GVariant *gvar;
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GVariantBuilder gvb;
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(void)sdi;
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(void)cg;
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ret = SR_OK;
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switch (key) {
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case SR_CONF_SCAN_OPTIONS:
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*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
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scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
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break;
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case SR_CONF_DEVICE_OPTIONS:
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*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
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devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
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break;
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case SR_CONF_SAMPLERATE:
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g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
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gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
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samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t));
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g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
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*data = g_variant_builder_end(&gvb);
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break;
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default:
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return SR_ERR_NA;
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}
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return ret;
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}
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static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
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{
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struct dev_context *devc;
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(void)cb_data;
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devc = sdi->priv;
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if (sdi->status != SR_ST_ACTIVE)
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return SR_ERR_DEV_CLOSED;
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if (!devc->ftdic)
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return SR_ERR_BUG;
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ftdi_set_bitmode(devc->ftdic, 0, BITMODE_BITBANG);
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devc->cb_data = cb_data;
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/* Properly reset internal variables before every new acquisition. */
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devc->samples_sent = 0;
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devc->bytes_received = 0;
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/* Send header packet to the session bus. */
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std_session_send_df_header(sdi, LOG_PREFIX);
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/* Hook up a dummy handler to receive data from the device. */
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sr_session_source_add(sdi->session, -1, G_IO_IN, 0,
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ft2232h_receive_data, (void *)sdi);
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return SR_OK;
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}
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static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
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{
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struct sr_datafeed_packet packet;
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(void)cb_data;
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if (sdi->status != SR_ST_ACTIVE)
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return SR_ERR_DEV_CLOSED;
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sr_dbg("Stopping acquisition.");
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sr_session_source_remove(sdi->session, -1);
|
||||
|
||||
/* Send end packet to the session bus. */
|
||||
sr_dbg("Sending SR_DF_END.");
|
||||
packet.type = SR_DF_END;
|
||||
sr_session_send(sdi, &packet);
|
||||
|
||||
return SR_OK;
|
||||
}
|
||||
|
||||
SR_PRIV struct sr_dev_driver ft2232h_driver_info = {
|
||||
.name = "ft2232h",
|
||||
.longname = "FT2232H",
|
||||
.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,
|
||||
.context = NULL,
|
||||
};
|
||||
|
|
@ -0,0 +1,87 @@
|
|||
/*
|
||||
* This file is part of the libsigrok project.
|
||||
*
|
||||
* Copyright (C) 2015 Sergey Alirzaev <zl29ah@gmail.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 <ftdi.h>
|
||||
#include "protocol.h"
|
||||
|
||||
static void send_samples(struct dev_context *devc, uint64_t samples_to_send)
|
||||
{
|
||||
struct sr_datafeed_packet packet;
|
||||
struct sr_datafeed_logic logic;
|
||||
|
||||
sr_spew("Sending %" PRIu64 " samples.", samples_to_send);
|
||||
|
||||
packet.type = SR_DF_LOGIC;
|
||||
packet.payload = &logic;
|
||||
logic.length = samples_to_send;
|
||||
logic.unitsize = 1;
|
||||
logic.data = devc->data_buf;
|
||||
sr_session_send(devc->cb_data, &packet);
|
||||
|
||||
devc->samples_sent += samples_to_send;
|
||||
devc->bytes_received -= samples_to_send;
|
||||
}
|
||||
|
||||
SR_PRIV int ft2232h_receive_data(int fd, int revents, void *cb_data)
|
||||
{
|
||||
struct sr_dev_inst *sdi;
|
||||
struct dev_context *devc;
|
||||
int bytes_read;
|
||||
uint64_t n;
|
||||
|
||||
(void)fd;
|
||||
(void)revents;
|
||||
|
||||
if (!(sdi = cb_data))
|
||||
return TRUE;
|
||||
if (!(devc = sdi->priv))
|
||||
return TRUE;
|
||||
if (!(revents == G_IO_IN || revents == 0))
|
||||
return TRUE;
|
||||
if (!devc->ftdic)
|
||||
return TRUE;
|
||||
|
||||
/* Get a block of data. */
|
||||
bytes_read = ftdi_read_data(devc->ftdic, devc->data_buf, DATA_BUF_SIZE);
|
||||
if (bytes_read < 0) {
|
||||
sr_err("Failed to read FTDI data (%d): %s.",
|
||||
bytes_read, ftdi_get_error_string(devc->ftdic));
|
||||
sdi->driver->dev_acquisition_stop(sdi, sdi);
|
||||
return FALSE;
|
||||
}
|
||||
if (bytes_read == 0) {
|
||||
sr_spew("Received 0 bytes, nothing to do.");
|
||||
return TRUE;
|
||||
}
|
||||
sr_spew("Got some data.");
|
||||
devc->bytes_received += bytes_read;
|
||||
|
||||
n = devc->samples_sent + devc->bytes_received;
|
||||
|
||||
if (devc->limit_samples && (n >= devc->limit_samples)) {
|
||||
send_samples(devc, devc->limit_samples - devc->samples_sent);
|
||||
sr_info("Requested number of samples reached.");
|
||||
sdi->driver->dev_acquisition_stop(sdi, cb_data);
|
||||
return TRUE;
|
||||
} else {
|
||||
send_samples(devc, devc->bytes_received);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
@ -0,0 +1,56 @@
|
|||
/*
|
||||
* This file is part of the libsigrok project.
|
||||
*
|
||||
* Copyright (C) 2015 Sergey Alirzaev <zl29ah@gmail.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/>.
|
||||
*/
|
||||
|
||||
#ifndef LIBSIGROK_HARDWARE_FT2232H_PROTOCOL_H
|
||||
#define LIBSIGROK_HARDWARE_FT2232H_PROTOCOL_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include <glib.h>
|
||||
#include <libsigrok/libsigrok.h>
|
||||
#include "libsigrok-internal.h"
|
||||
|
||||
#define LOG_PREFIX "ft2232h"
|
||||
|
||||
#define DATA_BUF_SIZE (16 * 1024)
|
||||
|
||||
struct ftdi_chip_desc {
|
||||
uint16_t vendor;
|
||||
uint16_t product;
|
||||
int samplerate_div;
|
||||
char *channel_names[];
|
||||
};
|
||||
|
||||
/** Private, per-device-instance driver context. */
|
||||
struct dev_context {
|
||||
struct ftdi_context *ftdic;
|
||||
const struct ftdi_chip_desc *desc;
|
||||
struct libusb_device *usbdev;
|
||||
|
||||
uint64_t limit_samples;
|
||||
uint32_t cur_samplerate;
|
||||
|
||||
unsigned char *data_buf;
|
||||
uint64_t samples_sent;
|
||||
uint64_t bytes_received;
|
||||
void *cb_data;
|
||||
};
|
||||
|
||||
SR_PRIV int ft2232h_receive_data(int fd, int revents, void *cb_data);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue