/*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
*
- * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
+ * Copyright (C) 2011 Daniel Ribeiro <drwyrm@gmail.com>
+ * Copyright (C) 2012 Renato Caldas <rmsc@fe.up.pt>
+ * Copyright (C) 2013 Lior Elazary <lelazary@yahoo.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
#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;
+/* serial protocol */
+#define mso_trans(a, v) \
+ (((v) & 0x3f) | (((v) & 0xc0) << 6) | (((a) & 0xf) << 8) | \
+ ((~(v) & 0x20) << 1) | ((~(v) & 0x80) << 7))
- 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; */
-
+static const char mso_head[] = { 0x40, 0x4c, 0x44, 0x53, 0x7e };
+static const char mso_foot[] = { 0x7e };
- /* 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;
-}
+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_send_control_message(struct sr_serial_dev_inst *serial,
- uint16_t payload[], int n)
+ uint16_t payload[], int n)
{
int i, w, ret, s = n * 2 + sizeof(mso_head) + sizeof(mso_foot);
char *p, *buf;
p += sizeof(mso_head);
for (i = 0; i < n; i++) {
- *(uint16_t *) p = htons(payload[i]);
+ *(uint16_t *) p = g_htons(payload[i]);
p += 2;
}
memcpy(p, mso_foot, sizeof(mso_foot));
return ret;
}
+SR_PRIV int mso_configure_trigger(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc = sdi->priv;
+ uint16_t threshold_value = mso_calc_raw_from_mv(devc);
+
+ threshold_value = 0x153C;
+ uint8_t trigger_config = 0;
+
+ if (devc->trigger_slope)
+ trigger_config |= 0x04; //Trigger on falling edge
+
+ switch (devc->trigger_outsrc) {
+ case 1:
+ trigger_config |= 0x00; //Trigger pulse output
+ break;
+ case 2:
+ trigger_config |= 0x08; //PWM DAC from the pattern generator buffer
+ break;
+ case 3:
+ trigger_config |= 0x18; //White noise
+ break;
+ }
+
+ switch (devc->trigger_chan) {
+ case 0:
+ trigger_config |= 0x00; //DSO level trigger //b00000000
+ break;
+ case 1:
+ trigger_config |= 0x20; //DSO level trigger & width < trigger_width
+ break;
+ case 2:
+ trigger_config |= 0x40; //DSO level trigger & width >= trigger_width
+ break;
+ case 3:
+ trigger_config |= 0x60; //LA combination trigger
+ break;
+ }
+
+ //Last bit of trigger config reg 4 needs to be 1 for trigger enable,
+ //otherwise the trigger is not enabled
+ if (devc->use_trigger)
+ trigger_config |= 0x80;
+
+ uint16_t ops[18];
+ ops[0] = mso_trans(3, threshold_value & 0xff);
+ //The trigger_config also holds the 2 MSB bits from the threshold value
+ ops[1] = mso_trans(4, trigger_config | ((threshold_value >> 8) & 0x03));
+ ops[2] = mso_trans(5, devc->la_trigger);
+ ops[3] = mso_trans(6, devc->la_trigger_mask);
+ ops[4] = mso_trans(7, devc->trigger_holdoff[0]);
+ ops[5] = mso_trans(8, devc->trigger_holdoff[1]);
+
+ ops[6] = mso_trans(11,
+ devc->dso_trigger_width /
+ SR_HZ_TO_NS(devc->cur_rate));
+
+ /* Select the SPI/I2C trigger config bank */
+ ops[7] = mso_trans(REG_CTL2, (devc->ctlbase2 | BITS_CTL2_BANK(2)));
+ /* Configure the SPI/I2C protocol trigger */
+ ops[8] = mso_trans(REG_PT_WORD(0), devc->protocol_trigger.word[0]);
+ ops[9] = mso_trans(REG_PT_WORD(1), devc->protocol_trigger.word[1]);
+ ops[10] = mso_trans(REG_PT_WORD(2), devc->protocol_trigger.word[2]);
+ ops[11] = mso_trans(REG_PT_WORD(3), devc->protocol_trigger.word[3]);
+ ops[12] = mso_trans(REG_PT_MASK(0), devc->protocol_trigger.mask[0]);
+ ops[13] = mso_trans(REG_PT_MASK(1), devc->protocol_trigger.mask[1]);
+ ops[14] = mso_trans(REG_PT_MASK(2), devc->protocol_trigger.mask[2]);
+ ops[15] = mso_trans(REG_PT_MASK(3), devc->protocol_trigger.mask[3]);
+ ops[16] = mso_trans(REG_PT_SPIMODE, devc->protocol_trigger.spimode);
+ /* Select the default config bank */
+ ops[17] = mso_trans(REG_CTL2, devc->ctlbase2);
+
+ return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
+}
+
+SR_PRIV int mso_configure_threshold_level(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc = sdi->priv;
+
+ return mso_dac_out(sdi, la_threshold_map[devc->la_threshold]);
+}
+
+SR_PRIV int mso_read_buffer(struct sr_dev_inst *sdi)
+{
+ uint16_t ops[] = { mso_trans(REG_BUFFER, 0) };
+ struct dev_context *devc = sdi->priv;
+
+ sr_dbg("Requesting buffer dump.");
+ return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
+}
+
+SR_PRIV int mso_arm(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc = sdi->priv;
+ uint16_t ops[] = {
+ mso_trans(REG_CTL1, devc->ctlbase1 | BIT_CTL1_RESETFSM),
+ mso_trans(REG_CTL1, devc->ctlbase1 | BIT_CTL1_ARM),
+ mso_trans(REG_CTL1, devc->ctlbase1),
+ };
+
+ sr_dbg("Requesting trigger arm.");
+ return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
+}
+
+SR_PRIV int mso_force_capture(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc = sdi->priv;
+ uint16_t ops[] = {
+ mso_trans(REG_CTL1, devc->ctlbase1 | 8),
+ mso_trans(REG_CTL1, devc->ctlbase1),
+ };
+
+ sr_dbg("Requesting forced capture.");
+ return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
+}
+
+SR_PRIV int mso_dac_out(const struct sr_dev_inst *sdi, uint16_t val)
+{
+ struct dev_context *devc = sdi->priv;
+ uint16_t ops[] = {
+ mso_trans(REG_DAC1, (val >> 8) & 0xff),
+ mso_trans(REG_DAC2, val & 0xff),
+ mso_trans(REG_CTL1, devc->ctlbase1 | BIT_CTL1_RESETADC),
+ };
+
+ sr_dbg("Setting dac word to 0x%x.", val);
+ return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
+}
+
+SR_PRIV inline uint16_t mso_calc_raw_from_mv(struct dev_context * devc)
+{
+ return (uint16_t) (0x200 -
+ ((devc->dso_trigger_voltage / devc->dso_probe_attn) /
+ devc->vbit));
+}
+
+SR_PRIV int mso_parse_serial(const char *iSerial, const char *iProduct,
+ struct dev_context *devc)
+{
+ unsigned int u1, u2, u3, u4, u5, u6;
+
+ (void)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->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_reset_adc(struct sr_dev_inst *sdi)
{
struct dev_context *devc = sdi->priv;
return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
}
+SR_PRIV int mso_reset_fsm(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc = sdi->priv;
+ uint16_t ops[1];
+
+ devc->ctlbase1 |= BIT_CTL1_RESETFSM;
+ ops[0] = mso_trans(REG_CTL1, devc->ctlbase1);
+
+ sr_dbg("Requesting ADC reset.");
+ return mso_send_control_message(devc->serial, ARRAY_AND_SIZE(ops));
+}
+
+SR_PRIV int mso_toggle_led(struct sr_dev_inst *sdi, int state)
+{
+ struct dev_context *devc = sdi->priv;
+ uint16_t ops[1];
+
+ devc->ctlbase1 &= ~BIT_CTL1_LED;
+ if (state)
+ devc->ctlbase1 |= BIT_CTL1_LED;
+ ops[0] = mso_trans(REG_CTL1, devc->ctlbase1);
+
+ sr_dbg("Requesting LED toggle.");
+ 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);
+ serial_source_remove(devc->serial);
/* Terminate session */
packet.type = SR_DF_END;
return mso_send_control_message(serial, ARRAY_AND_SIZE(ops));
}
-SR_PRIV int mso_configure_rate(struct sr_dev_inst *sdi, uint32_t rate)
+SR_PRIV int mso_configure_rate(const struct sr_dev_inst *sdi, uint32_t rate)
{
struct dev_context *devc = sdi->priv;
unsigned int i;
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);
+ ret = mso_clkrate_out(devc->serial, rate_map[i].val);
if (ret == SR_OK)
devc->cur_rate = rate;
return ret;
}
}
- return ret;
-}
-
-
+ if (ret != SR_OK)
+ sr_err("Unsupported rate.");
+ return ret;
+}
SR_PRIV int mso_check_trigger(struct sr_serial_dev_inst *serial, uint8_t *info)
{
if (info == NULL || ret != SR_OK)
return ret;
-
- uint8_t buf = 0;
- if (serial_read(serial, &buf, 1) != 1) /* FIXME: Need timeout */
+ uint8_t buf = 0;
+ if (serial_read(serial, &buf, 1) != 1) /* FIXME: Need timeout */
ret = SR_ERR;
- *info = buf;
+ if (!info)
+ *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;
+ int i;
- drvc = di->priv;
+ struct drv_context *drvc = di->priv;
/* Find this device's devc struct by its fd. */
- devc = NULL;
+ struct dev_context *devc = NULL;
for (l = drvc->instances; l; l = l->next) {
sdi = l->data;
devc = sdi->priv;
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;
- }
+
+ /* Check if we triggered, then send a command that we are ready
+ * to read the data */
+ 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 TRUE;
+ }
/* the hardware always dumps 1024 samples, 24bits each */
if (devc->buffer_n < 3072) {
devc->buffer_n += s;
}
if (devc->buffer_n < 3072)
- return FALSE;
+ return TRUE;
/* do the conversion */
uint8_t logic_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);
+ ((devc->buffer[i * 3 + 1] & 0xf) << 6);
+ (void)analog_out;
logic_out[i] = ((devc->buffer[i * 3 + 1] & 0x30) >> 4) |
- ((devc->buffer[i * 3 + 2] & 0x3f) << 2);
+ ((devc->buffer[i * 3 + 2] & 0x3f) << 2);
}
packet.type = SR_DF_LOGIC;
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);
- */
+ devc->num_samples += 1024;
- packet.type = SR_DF_END;
- sr_session_send(devc->session_dev_id, &packet);
+ if (devc->limit_samples && devc->num_samples >= devc->limit_samples) {
+ sr_info("Requested number of samples reached.");
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ }
+ return TRUE;
+}
+
+SR_PRIV int mso_configure_channels(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_channel *ch;
+ GSList *l;
+ char *tc;
+
+ devc = sdi->priv;
+
+ devc->la_trigger_mask = 0xFF; //the mask for the LA_TRIGGER (bits set to 0 matter, those set to 1 are ignored).
+ devc->la_trigger = 0x00; //The value of the LA byte that generates a trigger event (in that mode).
+ devc->dso_trigger_voltage = 3;
+ devc->dso_probe_attn = 1;
+ devc->trigger_outsrc = 0;
+ devc->trigger_chan = 3; //LA combination trigger
+ devc->use_trigger = FALSE;
+
+ for (l = sdi->channels; l; l = l->next) {
+ ch = (struct sr_channel *)l->data;
+ if (ch->enabled == FALSE)
+ continue;
+
+ int channel_bit = 1 << (ch->index);
+ if (!(ch->trigger))
+ continue;
+
+ devc->use_trigger = TRUE;
+ //Configure trigger mask and value.
+ for (tc = ch->trigger; *tc; tc++) {
+ devc->la_trigger_mask &= ~channel_bit;
+ if (*tc == '1')
+ devc->la_trigger |= channel_bit;
+ }
+ }
+
+ return SR_OK;
}
projects / libsigrok.git / blobdiff