+++ /dev/null
-/*
- * This file is part of the libsigrok project.
- *
- * Copyright (C) 2014 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 <string.h>
-#include <errno.h>
-#include "protocol.h"
-
-/*
- * The default serial communication settings on the device are 9600
- * baud, 9 data bits. The 9th bit isn't actually used, and the vendor
- * software uses Mark parity to absorb the extra bit.
- *
- * Since 9 data bits is not a standard available in POSIX, we use two
- * stop bits to skip over the extra bit instead.
- */
-#define SERIALCOMM "9600/8n2"
-
-static const int32_t scanopts[] = {
- SR_CONF_CONN,
- SR_CONF_SERIALCOMM,
-};
-
-static const int32_t devopts[] = {
- SR_CONF_POWER_SUPPLY,
- SR_CONF_CONTINUOUS,
- SR_CONF_OUTPUT_CHANNEL,
- SR_CONF_OVER_CURRENT_PROTECTION,
-};
-
-static const int32_t devopts_cg[] = {
- SR_CONF_OUTPUT_VOLTAGE,
- SR_CONF_OUTPUT_VOLTAGE_MAX,
- SR_CONF_OUTPUT_CURRENT,
- SR_CONF_OUTPUT_CURRENT_MAX,
- SR_CONF_OUTPUT_ENABLED,
-};
-
-static const char *channel_modes[] = {
- "Independent",
- "Series",
- "Parallel",
-};
-
-static struct pps_model models[] = {
- { PPS_3203T_3S, "PPS3203T-3S",
- CHANMODE_INDEPENDENT | CHANMODE_SERIES | CHANMODE_PARALLEL,
- 3,
- {
- /* Channel 1 */
- { { 0, 32, 0.01 }, { 0, 3, 0.001 } },
- /* Channel 2 */
- { { 0, 32, 0.01 }, { 0, 3, 0.001 } },
- /* Channel 3 */
- { { 0, 6, 0.01 }, { 0, 3, 0.001 } },
- },
- },
-};
-
-
-SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
-static struct sr_dev_driver *di = &atten_pps3203_driver_info;
-
-static int init(struct sr_context *sr_ctx)
-{
- return std_init(sr_ctx, di, LOG_PREFIX);
-}
-
-static GSList *scan(GSList *options, int modelid)
-{
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_config *src;
- struct sr_channel *ch;
- struct sr_channel_group *cg;
- struct sr_serial_dev_inst *serial;
- GSList *l, *devices;
- struct pps_model *model;
- uint8_t packet[PACKET_SIZE];
- unsigned int i;
- int ret;
- const char *conn, *serialcomm;
- char channel[10];
-
- devices = NULL;
- drvc = di->priv;
- drvc->instances = NULL;
-
- conn = serialcomm = 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;
- case SR_CONF_SERIALCOMM:
- serialcomm = g_variant_get_string(src->data, NULL);
- break;
- }
- }
- if (!conn)
- return NULL;
- if (!serialcomm)
- serialcomm = SERIALCOMM;
-
- if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
- return NULL;
-
- if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
- return NULL;
- serial_flush(serial);
-
- /* This is how the vendor software channels for hardware. */
- memset(packet, 0, PACKET_SIZE);
- packet[0] = 0xaa;
- packet[1] = 0xaa;
- if (serial_write(serial, packet, PACKET_SIZE) == -1) {
- sr_err("Unable to write while probing for hardware: %s",
- strerror(errno));
- return NULL;
- }
- /* The device responds with a 24-byte packet when it receives a packet.
- * At 9600 baud, 300ms is long enough for it to have arrived. */
- g_usleep(300 * 1000);
- memset(packet, 0, PACKET_SIZE);
- if ((ret = serial_read_nonblocking(serial, packet, PACKET_SIZE)) < 0) {
- sr_err("Unable to read while probing for hardware: %s",
- strerror(errno));
- return NULL;
- }
- if (ret != PACKET_SIZE || packet[0] != 0xaa || packet[1] != 0xaa) {
- /* Doesn't look like an Atten PPS. */
- return NULL;
- }
-
- model = NULL;
- for (i = 0; i < ARRAY_SIZE(models); i++) {
- if (models[i].modelid == modelid) {
- model = &models[i];
- break;
- }
- }
- if (!model) {
- sr_err("Unknown modelid %d", modelid);
- return NULL;
- }
-
- sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Atten", model->name, NULL);
- sdi->driver = di;
- sdi->inst_type = SR_INST_SERIAL;
- sdi->conn = serial;
- for (i = 0; i < MAX_CHANNELS; i++) {
- snprintf(channel, 10, "CH%d", i + 1);
- ch = sr_channel_new(i, SR_CHANNEL_ANALOG, TRUE, channel);
- sdi->channels = g_slist_append(sdi->channels, ch);
- cg = g_malloc(sizeof(struct sr_channel_group));
- cg->name = g_strdup(channel);
- cg->channels = g_slist_append(NULL, ch);
- cg->priv = NULL;
- sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
- }
-
- devc = g_malloc0(sizeof(struct dev_context));
- devc->model = model;
- devc->config = g_malloc0(sizeof(struct per_channel_config) * model->num_channels);
- sdi->priv = devc;
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
-
- serial_close(serial);
- if (!devices)
- sr_serial_dev_inst_free(serial);
-
- return devices;
-}
-
-static GSList *scan_3203(GSList *options)
-{
- return scan(options, PPS_3203T_3S);
-}
-
-static GSList *dev_list(void)
-{
- return ((struct drv_context *)(di->priv))->instances;
-}
-
-static int cleanup(void)
-{
- return std_dev_clear(di, NULL);
-}
-
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
- struct sr_channel *ch;
- int channel, ret;
-
- if (!sdi)
- return SR_ERR_ARG;
-
- devc = sdi->priv;
-
- ret = SR_OK;
- if (!cg) {
- /* No channel group: global options. */
- switch (key) {
- case SR_CONF_OUTPUT_CHANNEL:
- *data = g_variant_new_string(channel_modes[devc->channel_mode]);
- break;
- case SR_CONF_OVER_CURRENT_PROTECTION:
- *data = g_variant_new_boolean(devc->over_current_protection);
- break;
- default:
- return SR_ERR_NA;
- }
- } else {
- /* We only ever have one channel per channel group in this driver. */
- ch = cg->channels->data;
- channel = ch->index;
-
- switch (key) {
- case SR_CONF_OUTPUT_VOLTAGE:
- *data = g_variant_new_double(devc->config[channel].output_voltage_last);
- break;
- case SR_CONF_OUTPUT_VOLTAGE_MAX:
- *data = g_variant_new_double(devc->config[channel].output_voltage_max);
- break;
- case SR_CONF_OUTPUT_CURRENT:
- *data = g_variant_new_double(devc->config[channel].output_current_last);
- break;
- case SR_CONF_OUTPUT_CURRENT_MAX:
- *data = g_variant_new_double(devc->config[channel].output_current_max);
- break;
- case SR_CONF_OUTPUT_ENABLED:
- *data = g_variant_new_boolean(devc->config[channel].output_enabled);
- break;
- default:
- return SR_ERR_NA;
- }
- }
-
- return ret;
-}
-
-static int find_str(const char *str, const char **strings, int array_size)
-{
- int idx, i;
-
- idx = -1;
- for (i = 0; i < array_size; i++) {
- if (!strcmp(str, strings[i])) {
- idx = i;
- break;
- }
- }
-
- return idx;
-}
-
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
- struct sr_channel *ch;
- gdouble dval;
- int channel, ret, ival;
- const char *sval;
- gboolean bval;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- ret = SR_OK;
- devc = sdi->priv;
- if (!cg) {
- /* No channel group: global options. */
- switch (key) {
- case SR_CONF_OUTPUT_CHANNEL:
- sval = g_variant_get_string(data, NULL);
- if ((ival = find_str(sval, channel_modes,
- ARRAY_SIZE(channel_modes))) == -1) {
- ret = SR_ERR_ARG;
- break;
- }
- if (devc->model->channel_modes && (1 << ival) == 0) {
- /* Not supported on this model. */
- ret = SR_ERR_ARG;
- }
- if (ival == devc->channel_mode_set)
- /* Nothing to do. */
- break;
- devc->channel_mode_set = ival;
- devc->config_dirty = TRUE;
- break;
- case SR_CONF_OVER_CURRENT_PROTECTION:
- bval = g_variant_get_boolean(data);
- if (bval == devc->over_current_protection_set)
- /* Nothing to do. */
- break;
- devc->over_current_protection_set = bval;
- devc->config_dirty = TRUE;
- break;
- default:
- return SR_ERR_NA;
- }
- } else {
- /* Channel group specified: per-channel options. */
- /* We only ever have one channel per channel group in this driver. */
- ch = cg->channels->data;
- channel = ch->index;
-
- switch (key) {
- case SR_CONF_OUTPUT_VOLTAGE_MAX:
- dval = g_variant_get_double(data);
- if (dval < 0 || dval > devc->model->channels[channel].voltage[1])
- ret = SR_ERR_ARG;
- devc->config[channel].output_voltage_max = dval;
- devc->config_dirty = TRUE;
- break;
- case SR_CONF_OUTPUT_CURRENT_MAX:
- dval = g_variant_get_double(data);
- if (dval < 0 || dval > devc->model->channels[channel].current[1])
- ret = SR_ERR_ARG;
- devc->config[channel].output_current_max = dval;
- devc->config_dirty = TRUE;
- break;
- case SR_CONF_OUTPUT_ENABLED:
- bval = g_variant_get_boolean(data);
- if (bval == devc->config[channel].output_enabled_set)
- /* Nothing to do. */
- break;
- devc->config[channel].output_enabled_set = bval;
- devc->config_dirty = TRUE;
- break;
- default:
- ret = SR_ERR_NA;
- }
- }
-
-
- return ret;
-}
-
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
-{
- struct dev_context *devc;
- struct sr_channel *ch;
- GVariant *gvar;
- GVariantBuilder gvb;
- int channel, ret, i;
-
- /* Always available, even without sdi. */
- if (key == SR_CONF_SCAN_OPTIONS) {
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- scanopts, ARRAY_SIZE(scanopts), sizeof(int32_t));
- return SR_OK;
- }
-
- if (!sdi)
- return SR_ERR_ARG;
- devc = sdi->priv;
-
- ret = SR_OK;
- if (!cg) {
- /* No channel group: global options. */
- switch (key) {
- case SR_CONF_DEVICE_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- devopts, ARRAY_SIZE(devopts), sizeof(int32_t));
- break;
- case SR_CONF_OUTPUT_CHANNEL:
- if (devc->model->channel_modes == CHANMODE_INDEPENDENT) {
- /* The 1-channel models. */
- *data = g_variant_new_strv(channel_modes, 1);
- } else {
- /* The other models support all modes. */
- *data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
- }
- break;
- default:
- return SR_ERR_NA;
- }
- } else {
- /* Channel group specified: per-channel options. */
- if (!sdi)
- return SR_ERR_ARG;
- /* We only ever have one channel per channel group in this driver. */
- ch = cg->channels->data;
- channel = ch->index;
-
- switch (key) {
- case SR_CONF_DEVICE_OPTIONS:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(int32_t));
- break;
- case SR_CONF_OUTPUT_VOLTAGE_MAX:
- g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
- /* Min, max, step. */
- for (i = 0; i < 3; i++) {
- gvar = g_variant_new_double(devc->model->channels[channel].voltage[i]);
- g_variant_builder_add_value(&gvb, gvar);
- }
- *data = g_variant_builder_end(&gvb);
- break;
- case SR_CONF_OUTPUT_CURRENT_MAX:
- g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
- /* Min, max, step. */
- for (i = 0; i < 3; i++) {
- gvar = g_variant_new_double(devc->model->channels[channel].current[i]);
- g_variant_builder_add_value(&gvb, gvar);
- }
- *data = g_variant_builder_end(&gvb);
- break;
- default:
- return SR_ERR_NA;
- }
- }
-
- return ret;
-}
-
-static int dev_close(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- devc = sdi->priv;
- if (devc->config_dirty)
- /* Some configuration changes were queued up but didn't
- * get sent to the device, likely because we were never
- * in acquisition mode. Send them out now. */
- send_config(sdi);
-
- return std_serial_dev_close(sdi);
-}
-
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
- struct dev_context *devc;
- struct sr_serial_dev_inst *serial;
- uint8_t packet[PACKET_SIZE];
-
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- devc = sdi->priv;
- memset(devc->packet, 0x44, PACKET_SIZE);
- devc->packet_size = 0;
-
- devc->acquisition_running = TRUE;
-
- serial = sdi->conn;
- serial_source_add(sdi->session, serial, G_IO_IN, 50,
- atten_pps3xxx_receive_data, (void *)sdi);
- std_session_send_df_header(cb_data, LOG_PREFIX);
-
- /* Send a "channel" configuration packet now. */
- memset(packet, 0, PACKET_SIZE);
- packet[0] = 0xaa;
- packet[1] = 0xaa;
- send_packet(sdi, packet);
-
- return SR_OK;
-}
-
-static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- struct dev_context *devc;
-
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
-
- devc = sdi->priv;
- devc->acquisition_running = FALSE;
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver atten_pps3203_driver_info = {
- .name = "atten-pps3203",
- .longname = "Atten PPS3203T-3S",
- .api_version = 1,
- .init = init,
- .cleanup = cleanup,
- .scan = scan_3203,
- .dev_list = dev_list,
- .dev_clear = NULL,
- .config_get = config_get,
- .config_set = config_set,
- .config_list = config_list,
- .dev_open = std_serial_dev_open,
- .dev_close = dev_close,
- .dev_acquisition_start = dev_acquisition_start,
- .dev_acquisition_stop = dev_acquisition_stop,
- .priv = NULL,
-};
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