The driver already supports more than just the FT2232H chip.
src/hardware/fluke-dmm/fluke.c \
src/hardware/fluke-dmm/api.c
endif
-if HW_FT2232H
+if HW_FTDI_LA
libsigrok_la_SOURCES += \
- src/hardware/ft2232h/protocol.h \
- src/hardware/ft2232h/protocol.c \
- src/hardware/ft2232h/api.c
+ src/hardware/ftdi-la/protocol.h \
+ src/hardware/ftdi-la/protocol.c \
+ src/hardware/ftdi-la/api.c
endif
if HW_FX2LAFW
libsigrok_la_SOURCES += \
SR_DRIVER([DER EE DE-5000], [deree-de5000], [libserialport])
SR_DRIVER([demo], [demo])
SR_DRIVER([Fluke DMM], [fluke-dmm], [libserialport])
-SR_DRIVER([FTDI FT2232H], [ft2232h], [libusb libftdi])
+SR_DRIVER([FTDI LA], [ftdi-la], [libusb libftdi])
SR_DRIVER([fx2lafw], [fx2lafw], [libusb])
SR_DRIVER([GMC MH 1x/2x], [gmc-mh-1x-2x], [libserialport])
SR_DRIVER([GW Instek GDS-800], [gwinstek-gds-800], [libserialport])
#ifdef HAVE_HW_FLUKE_DMM
extern SR_PRIV struct sr_dev_driver flukedmm_driver_info;
#endif
-#ifdef HAVE_HW_FT2232H
-extern SR_PRIV struct sr_dev_driver ft2232h_driver_info;
+#ifdef HAVE_HW_FTDI_LA
+extern SR_PRIV struct sr_dev_driver ftdi_la_driver_info;
#endif
#ifdef HAVE_HW_FX2LAFW
extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
#ifdef HAVE_HW_FLUKE_DMM
(DRVS) {&flukedmm_driver_info, NULL},
#endif
-#ifdef HAVE_HW_FT2232H
- (DRVS) {&ft2232h_driver_info, NULL},
+#ifdef HAVE_HW_FTDI_LA
+ (DRVS) {&ftdi_la_driver_info, NULL},
#endif
#ifdef HAVE_HW_FX2LAFW
(DRVS) {&fx2lafw_driver_info, NULL},
+++ /dev/null
-/*
- * 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 <libusb.h>
-#include "protocol.h"
-
-SR_PRIV struct sr_dev_driver ft2232h_driver_info;
-
-static const uint32_t scanopts[] = {
- /* TODO: SR_CONF_CONN to be able to specify the USB address. */
-};
-
-static const uint32_t devopts[] = {
- SR_CONF_LOGIC_ANALYZER,
- SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
- SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
-};
-
-static const uint64_t samplerates[] = {
- SR_HZ(3600),
- SR_MHZ(10),
- SR_HZ(1),
-};
-
-static const struct ftdi_chip_desc ft2232h_desc = {
- .vendor = 0x0403,
- .product = 0x6010,
- .samplerate_div = 20,
- .channel_names = {
- "ADBUS0",
- "ADBUS1",
- "ADBUS2",
- "ADBUS3",
- "ADBUS4",
- "ADBUS5",
- "ADBUS6",
- "ADBUS7",
- /* TODO: BDBUS[0..7] channels. */
- NULL
- }
-};
-
-static const struct ftdi_chip_desc ft232r_desc = {
- .vendor = 0x0403,
- .product = 0x6001,
- .samplerate_div = 30,
- .channel_names = {
- "TXD",
- "RI#",
- "DCD#",
- "DSR#",
- "DTR#",
- "CTS#",
- "RTS#",
- "RXD",
- NULL
- }
-};
-
-static const struct ftdi_chip_desc *chip_descs[] = {
- &ft2232h_desc,
- &ft232r_desc,
-};
-
-static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(struct sr_dev_driver *di, GSList *options)
-{
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_dev_inst *sdi;
- GSList *devices;
- struct ftdi_device_list *devlist = 0;
- struct ftdi_device_list *curdev;
- struct libusb_device_descriptor usb_desc;
- const struct ftdi_chip_desc *desc;
- char *vendor, *model, *serial_num;
- int ret;
-
- (void)options;
-
- devices = NULL;
- drvc = di->context;
- drvc->instances = NULL;
-
- /* Allocate memory for our private device context. */
- devc = g_malloc0(sizeof(struct dev_context));
-
- /* Allocate memory for the incoming data. */
- devc->data_buf = g_malloc0(DATA_BUF_SIZE);
-
- /* Allocate memory for the FTDI context (ftdic) and initialize it. */
- devc->ftdic = ftdi_new();
- if (!devc->ftdic) {
- sr_err("Failed to initialize libftdi.");
- goto err_free_data_buf;
- }
-
- ret = ftdi_usb_find_all(devc->ftdic, &devlist, 0, 0);
- if (ret < 0) {
- sr_err("Failed to list devices (%d): %s", ret,
- ftdi_get_error_string(devc->ftdic));
- goto err_free_ftdic;
- }
-
- sr_dbg("Number of FTDI devices found: %d", ret);
-
- curdev = devlist;
- while (curdev) {
- libusb_get_device_descriptor(curdev->dev, &usb_desc);
-
- desc = NULL;
- for (unsigned long i = 0; i < ARRAY_SIZE(chip_descs); i++) {
- desc = chip_descs[i];
- if (desc->vendor == usb_desc.idVendor &&
- desc->product == usb_desc.idProduct)
- break;
- }
-
- if (!desc) {
- sr_spew("Unsupported FTDI device 0x%4x:0x%4x.",
- usb_desc.idVendor, usb_desc.idProduct);
- continue;
- }
- devc->usbdev = curdev->dev;
- devc->desc = desc;
-
- vendor = g_malloc(32);
- model = g_malloc(32);
- serial_num = g_malloc(32);
- ftdi_usb_get_strings(devc->ftdic, curdev->dev, vendor, 32,
- model, 32, serial_num, 32);
- sr_dbg("Found an FTDI device: %s.", model);
-
- /* Register the device with libsigrok. */
- sdi = g_malloc0(sizeof(struct sr_dev_inst));
- sdi->status = SR_ST_INITIALIZING;
- sdi->vendor = vendor;
- sdi->model = model;
- sdi->serial_num = serial_num;
- sdi->driver = di;
- sdi->priv = devc;
-
- for (char *const *chan = &(desc->channel_names[0]); *chan; chan++)
- sr_channel_new(sdi, &(desc->channel_names[0]) - chan,
- SR_CHANNEL_LOGIC, TRUE, *chan);
-
- devices = g_slist_append(devices, sdi);
- drvc->instances = g_slist_append(drvc->instances, sdi);
-
- curdev = curdev->next;
- }
-
- return devices;
-
-err_free_ftdic:
- ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
-err_free_data_buf:
- g_free(devc->data_buf);
- g_free(devc);
-
- return NULL;
-}
-
-static GSList *dev_list(const struct sr_dev_driver *di)
-{
- return ((struct drv_context *)(di->context))->instances;
-}
-
-static void clear_helper(void *priv)
-{
- struct dev_context *devc;
-
- devc = priv;
-
- ftdi_free(devc->ftdic);
- g_free(devc->data_buf);
- g_free(devc);
-}
-
-static int dev_clear(const struct sr_dev_driver *di)
-{
- return std_dev_clear(di, clear_helper);
-}
-
-static int dev_open(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- int ret = SR_OK;
-
- devc = sdi->priv;
-
- ret = ftdi_usb_open_dev(devc->ftdic, devc->usbdev);
- if (ret < 0) {
- /* Log errors, except for -3 ("device not found"). */
- if (ret != -3)
- sr_err("Failed to open device (%d): %s", ret,
- ftdi_get_error_string(devc->ftdic));
- return SR_ERR;
- }
-
- /* Purge RX/TX buffers in the FTDI chip. */
- ret = ftdi_usb_purge_buffers(devc->ftdic);
- if (ret < 0) {
- sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- goto err_dev_open_close_ftdic;
- }
- sr_dbg("FTDI chip buffers purged successfully.");
-
- /* Reset the FTDI bitmode. */
- ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_RESET);
- if (ret < 0) {
- sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- goto err_dev_open_close_ftdic;
- }
- sr_dbg("FTDI chip bitmode reset successfully.");
-
- ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_BITBANG);
- if (ret < 0) {
- sr_err("Failed to put FTDI chip into bitbang mode (%d): %s.",
- ret, ftdi_get_error_string(devc->ftdic));
- goto err_dev_open_close_ftdic;
- }
- sr_dbg("FTDI chip bitbang mode entered successfully.");
-
- sdi->status = SR_ST_ACTIVE;
-
- return SR_OK;
-
-err_dev_open_close_ftdic:
- ftdi_usb_close(devc->ftdic);
- return SR_ERR;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- devc = sdi->priv;
-
- ftdi_usb_close(devc->ftdic);
-
- sdi->status = SR_ST_INACTIVE;
-
- return SR_OK;
-}
-
-static int cleanup(const struct sr_dev_driver *di)
-{
- dev_clear(di);
-
- /* TODO: Free other driver resources, if any. */
-
- return SR_OK;
-}
-
-static int config_get(uint32_t key, GVariant **data,
- const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
-{
- int ret;
- struct dev_context *devc;
-
- (void)cg;
-
- devc = sdi->priv;
-
- ret = SR_OK;
- switch (key) {
- case SR_CONF_SAMPLERATE:
- *data = g_variant_new_uint64(devc->cur_samplerate);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int ft2232h_set_samplerate(struct dev_context *devc)
-{
- int ret;
-
- ret = ftdi_set_baudrate(devc->ftdic,
- devc->cur_samplerate / devc->desc->samplerate_div);
- if (ret < 0) {
- sr_err("Failed to set baudrate (%d): %s.", devc->cur_samplerate,
- ftdi_get_error_string(devc->ftdic));
- return SR_ERR;
- }
- return SR_OK;
-}
-
-static int config_set(uint32_t key, GVariant *data,
- const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
-{
- int ret;
- struct dev_context *devc;
- uint64_t value;
-
- (void)cg;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- devc = sdi->priv;
-
- ret = SR_OK;
- switch (key) {
- case SR_CONF_LIMIT_MSEC:
- value = g_variant_get_uint64(data);
- /* TODO: Implement. */
- ret = SR_ERR_NA;
- break;
- case SR_CONF_LIMIT_SAMPLES:
- if (g_variant_get_uint64(data) == 0)
- return SR_ERR_ARG;
- devc->limit_samples = g_variant_get_uint64(data);
- break;
- case SR_CONF_SAMPLERATE:
- value = g_variant_get_uint64(data);
- if (value < 3600)
- return SR_ERR_SAMPLERATE;
- devc->cur_samplerate = value;
- return ft2232h_set_samplerate(devc);
- default:
- ret = SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int config_list(uint32_t key, GVariant **data,
- const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
-{
- int ret;
- GVariant *gvar;
- GVariantBuilder gvb;
-
- (void)sdi;
- (void)cg;
-
- ret = SR_OK;
- switch (key) {
- case SR_CONF_SCAN_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
- break;
- case SR_CONF_DEVICE_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
- devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
- break;
- case SR_CONF_SAMPLERATE:
- g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
- gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
- samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t));
- g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
- *data = g_variant_builder_end(&gvb);
- break;
- default:
- return SR_ERR_NA;
- }
-
- return ret;
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
-{
- struct dev_context *devc;
-
- (void)cb_data;
-
- devc = sdi->priv;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- if (!devc->ftdic)
- return SR_ERR_BUG;
-
- ftdi_set_bitmode(devc->ftdic, 0, BITMODE_BITBANG);
-
- devc->cb_data = cb_data;
-
- /* Properly reset internal variables before every new acquisition. */
- devc->samples_sent = 0;
- devc->bytes_received = 0;
-
- /* Send header packet to the session bus. */
- std_session_send_df_header(sdi, LOG_PREFIX);
-
- /* Hook up a dummy handler to receive data from the device. */
- sr_session_source_add(sdi->session, -1, G_IO_IN, 0,
- ft2232h_receive_data, (void *)sdi);
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- struct sr_datafeed_packet packet;
-
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- sr_dbg("Stopping acquisition.");
- 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,
-};
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
--- /dev/null
+/*
+ * 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 <libusb.h>
+#include "protocol.h"
+
+SR_PRIV struct sr_dev_driver ftdi_la_driver_info;
+
+static const uint32_t scanopts[] = {
+ /* TODO: SR_CONF_CONN to be able to specify the USB address. */
+};
+
+static const uint32_t devopts[] = {
+ SR_CONF_LOGIC_ANALYZER,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
+ SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+};
+
+static const uint64_t samplerates[] = {
+ SR_HZ(3600),
+ SR_MHZ(10),
+ SR_HZ(1),
+};
+
+static const struct ftdi_chip_desc ft2232h_desc = {
+ .vendor = 0x0403,
+ .product = 0x6010,
+ .samplerate_div = 20,
+ .channel_names = {
+ "ADBUS0",
+ "ADBUS1",
+ "ADBUS2",
+ "ADBUS3",
+ "ADBUS4",
+ "ADBUS5",
+ "ADBUS6",
+ "ADBUS7",
+ /* TODO: BDBUS[0..7] channels. */
+ NULL
+ }
+};
+
+static const struct ftdi_chip_desc ft232r_desc = {
+ .vendor = 0x0403,
+ .product = 0x6001,
+ .samplerate_div = 30,
+ .channel_names = {
+ "TXD",
+ "RI#",
+ "DCD#",
+ "DSR#",
+ "DTR#",
+ "CTS#",
+ "RTS#",
+ "RXD",
+ NULL
+ }
+};
+
+static const struct ftdi_chip_desc *chip_descs[] = {
+ &ft2232h_desc,
+ &ft232r_desc,
+};
+
+static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
+{
+ return std_init(sr_ctx, di, LOG_PREFIX);
+}
+
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
+{
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_dev_inst *sdi;
+ GSList *devices;
+ struct ftdi_device_list *devlist = 0;
+ struct ftdi_device_list *curdev;
+ struct libusb_device_descriptor usb_desc;
+ const struct ftdi_chip_desc *desc;
+ char *vendor, *model, *serial_num;
+ int ret;
+
+ (void)options;
+
+ devices = NULL;
+ drvc = di->context;
+ drvc->instances = NULL;
+
+ /* Allocate memory for our private device context. */
+ devc = g_malloc0(sizeof(struct dev_context));
+
+ /* Allocate memory for the incoming data. */
+ devc->data_buf = g_malloc0(DATA_BUF_SIZE);
+
+ /* Allocate memory for the FTDI context (ftdic) and initialize it. */
+ devc->ftdic = ftdi_new();
+ if (!devc->ftdic) {
+ sr_err("Failed to initialize libftdi.");
+ goto err_free_data_buf;
+ }
+
+ ret = ftdi_usb_find_all(devc->ftdic, &devlist, 0, 0);
+ if (ret < 0) {
+ sr_err("Failed to list devices (%d): %s", ret,
+ ftdi_get_error_string(devc->ftdic));
+ goto err_free_ftdic;
+ }
+
+ sr_dbg("Number of FTDI devices found: %d", ret);
+
+ curdev = devlist;
+ while (curdev) {
+ libusb_get_device_descriptor(curdev->dev, &usb_desc);
+
+ desc = NULL;
+ for (unsigned long i = 0; i < ARRAY_SIZE(chip_descs); i++) {
+ desc = chip_descs[i];
+ if (desc->vendor == usb_desc.idVendor &&
+ desc->product == usb_desc.idProduct)
+ break;
+ }
+
+ if (!desc) {
+ sr_spew("Unsupported FTDI device 0x%4x:0x%4x.",
+ usb_desc.idVendor, usb_desc.idProduct);
+ continue;
+ }
+ devc->usbdev = curdev->dev;
+ devc->desc = desc;
+
+ vendor = g_malloc(32);
+ model = g_malloc(32);
+ serial_num = g_malloc(32);
+ ftdi_usb_get_strings(devc->ftdic, curdev->dev, vendor, 32,
+ model, 32, serial_num, 32);
+ sr_dbg("Found an FTDI device: %s.", model);
+
+ /* Register the device with libsigrok. */
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->status = SR_ST_INITIALIZING;
+ sdi->vendor = vendor;
+ sdi->model = model;
+ sdi->serial_num = serial_num;
+ sdi->driver = di;
+ sdi->priv = devc;
+
+ for (char *const *chan = &(desc->channel_names[0]); *chan; chan++)
+ sr_channel_new(sdi, &(desc->channel_names[0]) - chan,
+ SR_CHANNEL_LOGIC, TRUE, *chan);
+
+ devices = g_slist_append(devices, sdi);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+
+ curdev = curdev->next;
+ }
+
+ return devices;
+
+err_free_ftdic:
+ ftdi_free(devc->ftdic); /* NOT free() or g_free()! */
+err_free_data_buf:
+ g_free(devc->data_buf);
+ g_free(devc);
+
+ return NULL;
+}
+
+static GSList *dev_list(const struct sr_dev_driver *di)
+{
+ return ((struct drv_context *)(di->context))->instances;
+}
+
+static void clear_helper(void *priv)
+{
+ struct dev_context *devc;
+
+ devc = priv;
+
+ ftdi_free(devc->ftdic);
+ g_free(devc->data_buf);
+ g_free(devc);
+}
+
+static int dev_clear(const struct sr_dev_driver *di)
+{
+ return std_dev_clear(di, clear_helper);
+}
+
+static int dev_open(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ int ret = SR_OK;
+
+ devc = sdi->priv;
+
+ ret = ftdi_usb_open_dev(devc->ftdic, devc->usbdev);
+ if (ret < 0) {
+ /* Log errors, except for -3 ("device not found"). */
+ if (ret != -3)
+ sr_err("Failed to open device (%d): %s", ret,
+ ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ }
+
+ /* Purge RX/TX buffers in the FTDI chip. */
+ ret = ftdi_usb_purge_buffers(devc->ftdic);
+ if (ret < 0) {
+ sr_err("Failed to purge FTDI RX/TX buffers (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_dev_open_close_ftdic;
+ }
+ sr_dbg("FTDI chip buffers purged successfully.");
+
+ /* Reset the FTDI bitmode. */
+ ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_RESET);
+ if (ret < 0) {
+ sr_err("Failed to reset the FTDI chip bitmode (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_dev_open_close_ftdic;
+ }
+ sr_dbg("FTDI chip bitmode reset successfully.");
+
+ ret = ftdi_set_bitmode(devc->ftdic, 0x00, BITMODE_BITBANG);
+ if (ret < 0) {
+ sr_err("Failed to put FTDI chip into bitbang mode (%d): %s.",
+ ret, ftdi_get_error_string(devc->ftdic));
+ goto err_dev_open_close_ftdic;
+ }
+ sr_dbg("FTDI chip bitbang mode entered successfully.");
+
+ sdi->status = SR_ST_ACTIVE;
+
+ return SR_OK;
+
+err_dev_open_close_ftdic:
+ ftdi_usb_close(devc->ftdic);
+ return SR_ERR;
+}
+
+static int dev_close(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+
+ devc = sdi->priv;
+
+ ftdi_usb_close(devc->ftdic);
+
+ sdi->status = SR_ST_INACTIVE;
+
+ return SR_OK;
+}
+
+static int cleanup(const struct sr_dev_driver *di)
+{
+ dev_clear(di);
+
+ /* TODO: Free other driver resources, if any. */
+
+ return SR_OK;
+}
+
+static int config_get(uint32_t key, GVariant **data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
+{
+ int ret;
+ struct dev_context *devc;
+
+ (void)cg;
+
+ devc = sdi->priv;
+
+ ret = SR_OK;
+ switch (key) {
+ case SR_CONF_SAMPLERATE:
+ *data = g_variant_new_uint64(devc->cur_samplerate);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return ret;
+}
+
+static int ftdi_la_set_samplerate(struct dev_context *devc)
+{
+ int ret;
+
+ ret = ftdi_set_baudrate(devc->ftdic,
+ devc->cur_samplerate / devc->desc->samplerate_div);
+ if (ret < 0) {
+ sr_err("Failed to set baudrate (%d): %s.", devc->cur_samplerate,
+ ftdi_get_error_string(devc->ftdic));
+ return SR_ERR;
+ }
+ return SR_OK;
+}
+
+static int config_set(uint32_t key, GVariant *data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
+{
+ int ret;
+ struct dev_context *devc;
+ uint64_t value;
+
+ (void)cg;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ devc = sdi->priv;
+
+ ret = SR_OK;
+ switch (key) {
+ case SR_CONF_LIMIT_MSEC:
+ value = g_variant_get_uint64(data);
+ /* TODO: Implement. */
+ ret = SR_ERR_NA;
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ if (g_variant_get_uint64(data) == 0)
+ return SR_ERR_ARG;
+ devc->limit_samples = g_variant_get_uint64(data);
+ break;
+ case SR_CONF_SAMPLERATE:
+ value = g_variant_get_uint64(data);
+ if (value < 3600)
+ return SR_ERR_SAMPLERATE;
+ devc->cur_samplerate = value;
+ return ftdi_la_set_samplerate(devc);
+ default:
+ ret = SR_ERR_NA;
+ }
+
+ return ret;
+}
+
+static int config_list(uint32_t key, GVariant **data,
+ const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
+{
+ int ret;
+ GVariant *gvar;
+ GVariantBuilder gvb;
+
+ (void)sdi;
+ (void)cg;
+
+ ret = SR_OK;
+ switch (key) {
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
+ break;
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
+ devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
+ break;
+ case SR_CONF_SAMPLERATE:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}"));
+ gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"),
+ samplerates, ARRAY_SIZE(samplerates), sizeof(uint64_t));
+ g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar);
+ *data = g_variant_builder_end(&gvb);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+
+ return ret;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
+{
+ struct dev_context *devc;
+
+ (void)cb_data;
+
+ devc = sdi->priv;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ if (!devc->ftdic)
+ return SR_ERR_BUG;
+
+ ftdi_set_bitmode(devc->ftdic, 0, BITMODE_BITBANG);
+
+ devc->cb_data = cb_data;
+
+ /* Properly reset internal variables before every new acquisition. */
+ devc->samples_sent = 0;
+ devc->bytes_received = 0;
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(sdi, LOG_PREFIX);
+
+ /* Hook up a dummy handler to receive data from the device. */
+ sr_session_source_add(sdi->session, -1, G_IO_IN, 0,
+ ftdi_la_receive_data, (void *)sdi);
+
+ return SR_OK;
+}
+
+static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
+{
+ struct sr_datafeed_packet packet;
+
+ (void)cb_data;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR_DEV_CLOSED;
+
+ sr_dbg("Stopping acquisition.");
+ 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 ftdi_la_driver_info = {
+ .name = "ftdi-la",
+ .longname = "FTDI LA",
+ .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,
+};
--- /dev/null
+/*
+ * 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 ftdi_la_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;
+}
--- /dev/null
+/*
+ * 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_FTID_LA_PROTOCOL_H
+#define LIBSIGROK_HARDWARE_FTID_LA_PROTOCOL_H
+
+#include <stdint.h>
+#include <glib.h>
+#include <libsigrok/libsigrok.h>
+#include "libsigrok-internal.h"
+
+#define LOG_PREFIX "ftdi-la"
+
+#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 ftdi_la_receive_data(int fd, int revents, void *cb_data);
+
+#endif
projects / libsigrok.git / commitdiff