+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "protocol.h"
-
-extern SR_PRIV struct sr_dev_driver link_mso19_driver_info;
-static struct sr_dev_driver *di = &link_mso19_driver_info;
-
-SR_PRIV int mso_parse_serial(const char *iSerial, const char *iProduct,
- struct dev_context *devc)
-{
- unsigned int u1, u2, u3, u4, u5, u6;
-
- iProduct = iProduct;
- /* FIXME: This code is in the original app, but I think its
- * used only for the GUI */
- /* if (strstr(iProduct, "REV_02") || strstr(iProduct, "REV_03"))
- devc->num_sample_rates = 0x16;
- else
- devc->num_sample_rates = 0x10; */
-
-
- /* parse iSerial */
- if (iSerial[0] != '4' || sscanf(iSerial, "%5u%3u%3u%1u%1u%6u",
- &u1, &u2, &u3, &u4, &u5, &u6) != 6)
- return SR_ERR;
- devc->hwmodel = u4;
- devc->hwrev = u5;
- devc->serial = u6;
- devc->vbit = u1 / 10000;
- if (devc->vbit == 0)
- devc->vbit = 4.19195;
- devc->dac_offset = u2;
- if (devc->dac_offset == 0)
- devc->dac_offset = 0x1ff;
- devc->offset_range = u3;
- if (devc->offset_range == 0)
- devc->offset_range = 0x17d;
-
- /*
- * FIXME: There is more code on the original software to handle
- * bigger iSerial strings, but as I can't test on my device
- * I will not implement it yet
- */
-
- return SR_OK;
-}
-
-SR_PRIV int mso_send_control_message(struct sr_serial_dev_inst *serial,
- uint16_t payload[], int n)
-{
- int i, w, ret, s = n * 2 + sizeof(mso_head) + sizeof(mso_foot);
- char *p, *buf;
-
- ret = SR_ERR;
-
- if (serial->fd < 0)
- goto ret;
-
- if (!(buf = g_try_malloc(s))) {
- sr_err("Failed to malloc message buffer.");
- ret = SR_ERR_MALLOC;
- goto ret;
- }
-
- p = buf;
- memcpy(p, mso_head, sizeof(mso_head));
- p += sizeof(mso_head);
-
- for (i = 0; i < n; i++) {
- *(uint16_t *) p = htons(payload[i]);
- p += 2;
- }
- memcpy(p, mso_foot, sizeof(mso_foot));
-
- w = 0;
- while (w < s) {
- ret = serial_write(serial, buf + w, s - w);
- if (ret < 0) {
- ret = SR_ERR;
- goto free;
- }
- w += ret;
- }
- ret = SR_OK;
-free:
- g_free(buf);
-ret:
- return ret;
-}
-
-SR_PRIV int mso_reset_adc(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc = sdi->priv;
- uint16_t ops[2];
-
- ops[0] = mso_trans(REG_CTL1, (devc->ctlbase1 | BIT_CTL1_RESETADC));
- ops[1] = mso_trans(REG_CTL1, devc->ctlbase1);
- devc->ctlbase1 |= BIT_CTL1_ADC_UNKNOWN4;
-
- sr_dbg("Requesting ADC reset.");
- return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
-}
-
-SR_PRIV void stop_acquisition(const struct sr_dev_inst *sdi)
-{
- struct sr_datafeed_packet packet;
- struct dev_context *devc;
-
- devc = sdi->priv;
- sr_source_remove(devc->serial->fd);
-
- /* Terminate session */
- packet.type = SR_DF_END;
- sr_session_send(sdi, &packet);
-}
-
-SR_PRIV int mso_clkrate_out(struct sr_serial_dev_inst *serial, uint16_t val)
-{
- uint16_t ops[] = {
- mso_trans(REG_CLKRATE1, (val >> 8) & 0xff),
- mso_trans(REG_CLKRATE2, val & 0xff),
- };
-
- sr_dbg("Setting clkrate word to 0x%x.", val);
- return mso_send_control_message(serial, ARRAY_AND_SIZE(ops));
-}
-
-SR_PRIV int mso_configure_rate(struct sr_dev_inst *sdi, uint32_t rate)
-{
- struct dev_context *devc = sdi->priv;
- unsigned int i;
- int ret = SR_ERR;
-
- for (i = 0; i < ARRAY_SIZE(rate_map); i++) {
- if (rate_map[i].rate == rate) {
- devc->ctlbase2 = rate_map[i].slowmode;
- ret = mso_clkrate_out(sdi, rate_map[i].val);
- if (ret == SR_OK)
- devc->cur_rate = rate;
- return ret;
- }
- }
- return ret;
-}
-
-
-
-
-
-SR_PRIV int mso_check_trigger(struct sr_serial_dev_inst *serial, uint8_t *info)
-{
- uint16_t ops[] = { mso_trans(REG_TRIGGER, 0) };
- int ret;
-
- sr_dbg("Requesting trigger state.");
- ret = mso_send_control_message(serial, ARRAY_AND_SIZE(ops));
- if (info == NULL || ret != SR_OK)
- return ret;
-
-
- uint8_t buf = 0;
- if (serial_read(serial, &buf, 1) != 1) /* FIXME: Need timeout */
- ret = SR_ERR;
- *info = buf;
-
- sr_dbg("Trigger state is: 0x%x.", *info);
- return ret;
-}
-
-SR_PRIV int mso_receive_data(int fd, int revents, void *cb_data)
-{
-
- struct sr_datafeed_packet packet;
- struct sr_datafeed_logic logic;
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
- GSList *l;
- int num_channels, offset, i, j;
- unsigned char byte;
-
- drvc = di->priv;
-
- /* Find this device's devc struct by its fd. */
- devc = NULL;
- for (l = drvc->instances; l; l = l->next) {
- sdi = l->data;
- devc = sdi->priv;
- if (devc->serial->fd == fd)
- break;
- devc = NULL;
- }
- if (!devc)
- /* Shouldn't happen. */
- return TRUE;
-
- (void)revents;
-
- uint8_t in[1024];
- size_t s = serial_read(devc->serial, in, sizeof(in));
- if (s <= 0)
- return FALSE;
-
- /* No samples */
- if (devc->trigger_state != MSO_TRIGGER_DATAREADY) {
- devc->trigger_state = in[0];
- if (devc->trigger_state == MSO_TRIGGER_DATAREADY) {
- mso_read_buffer(sdi);
- devc->buffer_n = 0;
- } else {
- mso_check_trigger(devc->serial, NULL);
- }
- return FALSE;
- }
-
- /* the hardware always dumps 1024 samples, 24bits each */
- if (devc->buffer_n < 3072) {
- memcpy(devc->buffer + devc->buffer_n, in, s);
- devc->buffer_n += s;
- }
- if (devc->buffer_n < 3072)
- return FALSE;
-
- /* do the conversion */
- uint8_t logic_out[1024];
- double analog_out[1024];
- for (i = 0; i < 1024; i++) {
- /* FIXME: Need to do conversion to mV */
- analog_out[i] = (devc->buffer[i * 3] & 0x3f) |
- ((devc->buffer[i * 3 + 1] & 0xf) << 6);
- logic_out[i] = ((devc->buffer[i * 3 + 1] & 0x30) >> 4) |
- ((devc->buffer[i * 3 + 2] & 0x3f) << 2);
- }
-
- packet.type = SR_DF_LOGIC;
- packet.payload = &logic;
- logic.length = 1024;
- logic.unitsize = 1;
- logic.data = logic_out;
- sr_session_send(cb_data, &packet);
-
- // Dont bother fixing this yet, keep it "old style"
- /*
- packet.type = SR_DF_ANALOG;
- packet.length = 1024;
- packet.unitsize = sizeof(double);
- packet.payload = analog_out;
- sr_session_send(ctx->session_dev_id, &packet);
- */
-
- packet.type = SR_DF_END;
- sr_session_send(devc->session_dev_id, &packet);
-
-}
projects / libsigrok.git / blobdiff