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asix-sigma: Split into api.c and protocol.[ch] modules.

This commit is contained in:
jry 2015-11-05 11:41:27 +01:00 committed by Uwe Hermann
parent ee95d6bd8b
commit 3ba56876b4
4 changed files with 490 additions and 438 deletions
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5
Makefile.am
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@ -174,8 +174,9 @@ libsigrok_la_SOURCES += \
endif
if HW_ASIX_SIGMA
libsigrok_la_SOURCES += \
src/hardware/asix-sigma/asix-sigma.h \
src/hardware/asix-sigma/asix-sigma.c
src/hardware/asix-sigma/protocol.h \
src/hardware/asix-sigma/protocol.c \
src/hardware/asix-sigma/api.c
endif
if HW_ATTEN_PPS3XXX
libsigrok_la_SOURCES += \

445
src/hardware/asix-sigma/api.c Normal file
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@ -0,0 +1,445 @@
/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2010-2012 Håvard Espeland <gus@ping.uio.no>,
* Copyright (C) 2010 Martin Stensgård <mastensg@ping.uio.no>
* Copyright (C) 2010 Carl Henrik Lunde <chlunde@ping.uio.no>
*
* 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/>.
*/
/*
* ASIX SIGMA/SIGMA2 logic analyzer driver
*/
#include <config.h>
#include "protocol.h"
SR_PRIV struct sr_dev_driver asix_sigma_driver_info;
/*
* Channel numbers seem to go from 1-16, according to this image:
* http://tools.asix.net/img/sigma_sigmacab_pins_720.jpg
* (the cable has two additional GND pins, and a TI and TO pin)
*/
static const char *channel_names[] = {
"1", "2", "3", "4", "5", "6", "7", "8",
"9", "10", "11", "12", "13", "14", "15", "16",
};
static const uint32_t drvopts[] = {
SR_CONF_LOGIC_ANALYZER,
};
static const uint32_t devopts[] = {
SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
};
static const int32_t trigger_matches[] = {
SR_TRIGGER_ZERO,
SR_TRIGGER_ONE,
SR_TRIGGER_RISING,
SR_TRIGGER_FALLING,
};
static int dev_clear(const struct sr_dev_driver *di)
{
return std_dev_clear(di, sigma_clear_helper);
}
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 sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
GSList *devices;
struct ftdi_device_list *devlist;
char serial_txt[10];
uint32_t serial;
int ret;
unsigned int i;
(void)options;
drvc = di->context;
devices = NULL;
devc = g_malloc0(sizeof(struct dev_context));
ftdi_init(&devc->ftdic);
/* Look for SIGMAs. */
if ((ret = ftdi_usb_find_all(&devc->ftdic, &devlist,
USB_VENDOR, USB_PRODUCT)) <= 0) {
if (ret < 0)
sr_err("ftdi_usb_find_all(): %d", ret);
goto free;
}
/* Make sure it's a version 1 or 2 SIGMA. */
ftdi_usb_get_strings(&devc->ftdic, devlist->dev, NULL, 0, NULL, 0,
serial_txt, sizeof(serial_txt));
sscanf(serial_txt, "%x", &serial);
if (serial < 0xa6010000 || serial > 0xa602ffff) {
sr_err("Only SIGMA and SIGMA2 are supported "
"in this version of libsigrok.");
goto free;
}
sr_info("Found ASIX SIGMA - Serial: %s", serial_txt);
devc->cur_samplerate = samplerates[0];
devc->period_ps = 0;
devc->limit_msec = 0;
devc->cur_firmware = -1;
devc->num_channels = 0;
devc->samples_per_event = 0;
devc->capture_ratio = 50;
devc->use_triggers = 0;
/* Register SIGMA device. */
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INITIALIZING;
sdi->vendor = g_strdup(USB_VENDOR_NAME);
sdi->model = g_strdup(USB_MODEL_NAME);
sdi->driver = di;
for (i = 0; i < ARRAY_SIZE(channel_names); i++)
sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
devices = g_slist_append(devices, sdi);
drvc->instances = g_slist_append(drvc->instances, sdi);
sdi->priv = devc;
/* We will open the device again when we need it. */
ftdi_list_free(&devlist);
return devices;
free:
ftdi_deinit(&devc->ftdic);
g_free(devc);
return NULL;
}
static GSList *dev_list(const struct sr_dev_driver *di)
{
return ((struct drv_context *)(di->context))->instances;
}
static int dev_open(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
int ret;
devc = sdi->priv;
/* Make sure it's an ASIX SIGMA. */
if ((ret = ftdi_usb_open_desc(&devc->ftdic,
USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) {
sr_err("ftdi_usb_open failed: %s",
ftdi_get_error_string(&devc->ftdic));
return 0;
}
sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
devc = sdi->priv;
/* TODO */
if (sdi->status == SR_ST_ACTIVE)
ftdi_usb_close(&devc->ftdic);
sdi->status = SR_ST_INACTIVE;
return SR_OK;
}
static int cleanup(const struct sr_dev_driver *di)
{
return dev_clear(di);
}
static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
struct dev_context *devc;
(void)cg;
if (!sdi)
return SR_ERR;
devc = sdi->priv;
switch (key) {
case SR_CONF_SAMPLERATE:
*data = g_variant_new_uint64(devc->cur_samplerate);
break;
case SR_CONF_LIMIT_MSEC:
*data = g_variant_new_uint64(devc->limit_msec);
break;
case SR_CONF_CAPTURE_RATIO:
*data = g_variant_new_uint64(devc->capture_ratio);
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
struct dev_context *devc;
uint64_t tmp;
int ret;
(void)cg;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
devc = sdi->priv;
ret = SR_OK;
switch (key) {
case SR_CONF_SAMPLERATE:
ret = sigma_set_samplerate(sdi, g_variant_get_uint64(data));
break;
case SR_CONF_LIMIT_MSEC:
tmp = g_variant_get_uint64(data);
if (tmp > 0)
devc->limit_msec = g_variant_get_uint64(data);
else
ret = SR_ERR;
break;
case SR_CONF_LIMIT_SAMPLES:
tmp = g_variant_get_uint64(data);
devc->limit_msec = tmp * 1000 / devc->cur_samplerate;
break;
case SR_CONF_CAPTURE_RATIO:
tmp = g_variant_get_uint64(data);
if (tmp <= 100)
devc->capture_ratio = tmp;
else
ret = SR_ERR;
break;
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)
{
GVariant *gvar;
GVariantBuilder gvb;
(void)cg;
switch (key) {
case SR_CONF_DEVICE_OPTIONS:
if (!sdi)
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
else
*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,
SAMPLERATES_COUNT, sizeof(uint64_t));
g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar);
*data = g_variant_builder_end(&gvb);
break;
case SR_CONF_TRIGGER_MATCH:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
trigger_matches, ARRAY_SIZE(trigger_matches),
sizeof(int32_t));
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
struct dev_context *devc;
struct clockselect_50 clockselect;
int frac, triggerpin, ret;
uint8_t triggerselect = 0;
struct triggerinout triggerinout_conf;
struct triggerlut lut;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
devc = sdi->priv;
if (sigma_convert_trigger(sdi) != SR_OK) {
sr_err("Failed to configure triggers.");
return SR_ERR;
}
/* If the samplerate has not been set, default to 200 kHz. */
if (devc->cur_firmware == -1) {
if ((ret = sigma_set_samplerate(sdi, SR_KHZ(200))) != SR_OK)
return ret;
}
/* Enter trigger programming mode. */
sigma_set_register(WRITE_TRIGGER_SELECT1, 0x20, devc);
/* 100 and 200 MHz mode. */
if (devc->cur_samplerate >= SR_MHZ(100)) {
sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81, devc);
/* Find which pin to trigger on from mask. */
for (triggerpin = 0; triggerpin < 8; ++triggerpin)
if ((devc->trigger.risingmask | devc->trigger.fallingmask) &
(1 << triggerpin))
break;
/* Set trigger pin and light LED on trigger. */
triggerselect = (1 << LEDSEL1) | (triggerpin & 0x7);
/* Default rising edge. */
if (devc->trigger.fallingmask)
triggerselect |= 1 << 3;
/* All other modes. */
} else if (devc->cur_samplerate <= SR_MHZ(50)) {
sigma_build_basic_trigger(&lut, devc);
sigma_write_trigger_lut(&lut, devc);
triggerselect = (1 << LEDSEL1) | (1 << LEDSEL0);
}
/* Setup trigger in and out pins to default values. */
memset(&triggerinout_conf, 0, sizeof(struct triggerinout));
triggerinout_conf.trgout_bytrigger = 1;
triggerinout_conf.trgout_enable = 1;
sigma_write_register(WRITE_TRIGGER_OPTION,
(uint8_t *) &triggerinout_conf,
sizeof(struct triggerinout), devc);
/* Go back to normal mode. */
sigma_set_register(WRITE_TRIGGER_SELECT1, triggerselect, devc);
/* Set clock select register. */
if (devc->cur_samplerate == SR_MHZ(200))
/* Enable 4 channels. */
sigma_set_register(WRITE_CLOCK_SELECT, 0xf0, devc);
else if (devc->cur_samplerate == SR_MHZ(100))
/* Enable 8 channels. */
sigma_set_register(WRITE_CLOCK_SELECT, 0x00, devc);
else {
/*
* 50 MHz mode (or fraction thereof). Any fraction down to
* 50 MHz / 256 can be used, but is not supported by sigrok API.
*/
frac = SR_MHZ(50) / devc->cur_samplerate - 1;
clockselect.async = 0;
clockselect.fraction = frac;
clockselect.disabled_channels = 0;
sigma_write_register(WRITE_CLOCK_SELECT,
(uint8_t *) &clockselect,
sizeof(clockselect), devc);
}
/* Setup maximum post trigger time. */
sigma_set_register(WRITE_POST_TRIGGER,
(devc->capture_ratio * 255) / 100, devc);
/* Start acqusition. */
gettimeofday(&devc->start_tv, 0);
sigma_set_register(WRITE_MODE, 0x0d, devc);
devc->cb_data = cb_data;
/* Send header packet to the session bus. */
std_session_send_df_header(sdi, LOG_PREFIX);
/* Add capture source. */
sr_session_source_add(sdi->session, -1, 0, 10, sigma_receive_data, (void *)sdi);
devc->state.state = SIGMA_CAPTURE;
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
struct dev_context *devc;
(void)cb_data;
devc = sdi->priv;
devc->state.state = SIGMA_IDLE;
sr_session_source_remove(sdi->session, -1);
return SR_OK;
}
SR_PRIV struct sr_dev_driver asix_sigma_driver_info = {
.name = "asix-sigma",
.longname = "ASIX SIGMA/SIGMA2",
.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,
};

446
src/hardware/asix-sigma/asix-sigma.c → src/hardware/asix-sigma/protocol.c
View File

@ -24,14 +24,7 @@
*/
#include <config.h>
#include <glib.h>
#include <glib/gstdio.h>
#include <ftdi.h>
#include <string.h>
#include <unistd.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#include "asix-sigma.h"
#include "protocol.h"
#define USB_VENDOR 0xa600
#define USB_PRODUCT 0xa000
@ -40,7 +33,6 @@
#define USB_MODEL_NAME "SIGMA"
SR_PRIV struct sr_dev_driver asix_sigma_driver_info;
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
/*
* The ASIX Sigma supports arbitrary integer frequency divider in
@ -48,7 +40,7 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
* very precise sampling rate selection. This driver supports only
* a subset of the sampling rates.
*/
static const uint64_t samplerates[] = {
SR_PRIV const uint64_t samplerates[] = {
SR_KHZ(200), /* div=250 */
SR_KHZ(250), /* div=200 */
SR_KHZ(500), /* div=100 */
@ -61,34 +53,7 @@ static const uint64_t samplerates[] = {
SR_MHZ(200), /* Special FW needed */
};
/*
* Channel numbers seem to go from 1-16, according to this image:
* http://tools.asix.net/img/sigma_sigmacab_pins_720.jpg
* (the cable has two additional GND pins, and a TI and TO pin)
*/
static const char *channel_names[] = {
"1", "2", "3", "4", "5", "6", "7", "8",
"9", "10", "11", "12", "13", "14", "15", "16",
};
static const uint32_t drvopts[] = {
SR_CONF_LOGIC_ANALYZER,
};
static const uint32_t devopts[] = {
SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
};
static const int32_t trigger_matches[] = {
SR_TRIGGER_ZERO,
SR_TRIGGER_ONE,
SR_TRIGGER_RISING,
SR_TRIGGER_FALLING,
};
SR_PRIV const int SAMPLERATES_COUNT = ARRAY_SIZE(samplerates);
static const char sigma_firmware_files[][24] = {
/* 50 MHz, supports 8 bit fractions */
@ -135,8 +100,8 @@ static int sigma_write(void *buf, size_t size, struct dev_context *devc)
* NOTE: We chose the buffer size to be large enough to hold any write to the
* device. We still print a message just in case.
*/
static int sigma_write_register(uint8_t reg, uint8_t *data, size_t len,
struct dev_context *devc)
SR_PRIV int sigma_write_register(uint8_t reg, uint8_t *data, size_t len,
struct dev_context *devc)
{
size_t i;
uint8_t buf[80];
@ -159,7 +124,7 @@ static int sigma_write_register(uint8_t reg, uint8_t *data, size_t len,
return sigma_write(buf, idx, devc);
}
static int sigma_set_register(uint8_t reg, uint8_t value, struct dev_context *devc)
SR_PRIV int sigma_set_register(uint8_t reg, uint8_t value, struct dev_context *devc)
{
return sigma_write_register(reg, &value, 1, devc);
}
@ -255,7 +220,7 @@ static int sigma_read_dram(uint16_t startchunk, size_t numchunks,
}
/* Upload trigger look-up tables to Sigma. */
static int sigma_write_trigger_lut(struct triggerlut *lut, struct dev_context *devc)
SR_PRIV int sigma_write_trigger_lut(struct triggerlut *lut, struct dev_context *devc)
{
int i;
uint8_t tmp[2];
@ -313,7 +278,7 @@ static int sigma_write_trigger_lut(struct triggerlut *lut, struct dev_context *d
return SR_OK;
}
static void clear_helper(void *priv)
SR_PRIV void sigma_clear_helper(void *priv)
{
struct dev_context *devc;
@ -322,99 +287,6 @@ static void clear_helper(void *priv)
ftdi_deinit(&devc->ftdic);
}
static int dev_clear(const struct sr_dev_driver *di)
{
return std_dev_clear(di, clear_helper);
}
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 sr_dev_inst *sdi;
struct drv_context *drvc;
struct dev_context *devc;
GSList *devices;
struct ftdi_device_list *devlist;
char serial_txt[10];
uint32_t serial;
int ret;
unsigned int i;
(void)options;
drvc = di->context;
devices = NULL;
devc = g_malloc0(sizeof(struct dev_context));
ftdi_init(&devc->ftdic);
/* Look for SIGMAs. */
if ((ret = ftdi_usb_find_all(&devc->ftdic, &devlist,
USB_VENDOR, USB_PRODUCT)) <= 0) {
if (ret < 0)
sr_err("ftdi_usb_find_all(): %d", ret);
goto free;
}
/* Make sure it's a version 1 or 2 SIGMA. */
ftdi_usb_get_strings(&devc->ftdic, devlist->dev, NULL, 0, NULL, 0,
serial_txt, sizeof(serial_txt));
sscanf(serial_txt, "%x", &serial);
if (serial < 0xa6010000 || serial > 0xa602ffff) {
sr_err("Only SIGMA and SIGMA2 are supported "
"in this version of libsigrok.");
goto free;
}
sr_info("Found ASIX SIGMA - Serial: %s", serial_txt);
devc->cur_samplerate = samplerates[0];
devc->period_ps = 0;
devc->limit_msec = 0;
devc->cur_firmware = -1;
devc->num_channels = 0;
devc->samples_per_event = 0;
devc->capture_ratio = 50;
devc->use_triggers = 0;
/* Register SIGMA device. */
sdi = g_malloc0(sizeof(struct sr_dev_inst));
sdi->status = SR_ST_INITIALIZING;
sdi->vendor = g_strdup(USB_VENDOR_NAME);
sdi->model = g_strdup(USB_MODEL_NAME);
sdi->driver = di;
for (i = 0; i < ARRAY_SIZE(channel_names); i++)
sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
devices = g_slist_append(devices, sdi);
drvc->instances = g_slist_append(drvc->instances, sdi);
sdi->priv = devc;
/* We will open the device again when we need it. */
ftdi_list_free(&devlist);
return devices;
free:
ftdi_deinit(&devc->ftdic);
g_free(devc);
return NULL;
}
static GSList *dev_list(const struct sr_dev_driver *di)
{
return ((struct drv_context *)(di->context))->instances;
}
/*
* Configure the FPGA for bitbang mode.
* This sequence is documented in section 2. of the ASIX Sigma programming
@ -642,29 +514,7 @@ static int upload_firmware(struct sr_context *ctx,
return SR_OK;
}
static int dev_open(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
int ret;
devc = sdi->priv;
/* Make sure it's an ASIX SIGMA. */
if ((ret = ftdi_usb_open_desc(&devc->ftdic,
USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) {
sr_err("ftdi_usb_open failed: %s",
ftdi_get_error_string(&devc->ftdic));
return 0;
}
sdi->status = SR_ST_ACTIVE;
return SR_OK;
}
static int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
SR_PRIV int sigma_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
{
struct dev_context *devc;
struct drv_context *drvc;
@ -711,7 +561,7 @@ static int set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate)
* The Sigma supports complex triggers using boolean expressions, but this
* has not been implemented yet.
*/
static int convert_trigger(const struct sr_dev_inst *sdi)
SR_PRIV int sigma_convert_trigger(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct sr_trigger *trigger;
@ -788,133 +638,6 @@ static int convert_trigger(const struct sr_dev_inst *sdi)
return SR_OK;
}
static int dev_close(struct sr_dev_inst *sdi)
{
struct dev_context *devc;
devc = sdi->priv;
/* TODO */
if (sdi->status == SR_ST_ACTIVE)
ftdi_usb_close(&devc->ftdic);
sdi->status = SR_ST_INACTIVE;
return SR_OK;
}
static int cleanup(const struct sr_dev_driver *di)
{
return dev_clear(di);
}
static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
struct dev_context *devc;
(void)cg;
if (!sdi)
return SR_ERR;
devc = sdi->priv;
switch (key) {
case SR_CONF_SAMPLERATE:
*data = g_variant_new_uint64(devc->cur_samplerate);
break;
case SR_CONF_LIMIT_MSEC:
*data = g_variant_new_uint64(devc->limit_msec);
break;
case SR_CONF_CAPTURE_RATIO:
*data = g_variant_new_uint64(devc->capture_ratio);
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
struct dev_context *devc;
uint64_t tmp;
int ret;
(void)cg;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
devc = sdi->priv;
ret = SR_OK;
switch (key) {
case SR_CONF_SAMPLERATE:
ret = set_samplerate(sdi, g_variant_get_uint64(data));
break;
case SR_CONF_LIMIT_MSEC:
tmp = g_variant_get_uint64(data);
if (tmp > 0)
devc->limit_msec = g_variant_get_uint64(data);
else
ret = SR_ERR;
break;
case SR_CONF_LIMIT_SAMPLES:
tmp = g_variant_get_uint64(data);
devc->limit_msec = tmp * 1000 / devc->cur_samplerate;
break;
case SR_CONF_CAPTURE_RATIO:
tmp = g_variant_get_uint64(data);
if (tmp <= 100)
devc->capture_ratio = tmp;
else
ret = SR_ERR;
break;
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)
{
GVariant *gvar;
GVariantBuilder gvb;
(void)cg;
switch (key) {
case SR_CONF_DEVICE_OPTIONS:
if (!sdi)
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
else
*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}", "samplerates", gvar);
*data = g_variant_builder_end(&gvb);
break;
case SR_CONF_TRIGGER_MATCH:
*data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
trigger_matches, ARRAY_SIZE(trigger_matches),
sizeof(int32_t));
break;
default:
return SR_ERR_NA;
}
return SR_OK;
}
/* Software trigger to determine exact trigger position. */
static int get_trigger_offset(uint8_t *samples, uint16_t last_sample,
@ -1190,7 +913,7 @@ static int download_capture(struct sr_dev_inst *sdi)
packet.type = SR_DF_END;
sr_session_send(sdi, &packet);
dev_acquisition_stop(sdi, sdi);
sdi->driver->dev_acquisition_stop(sdi, sdi);
g_free(dram_line);
@ -1229,7 +952,7 @@ static int sigma_capture_mode(struct sr_dev_inst *sdi)
return TRUE;
}
static int receive_data(int fd, int revents, void *cb_data)
SR_PRIV int sigma_receive_data(int fd, int revents, void *cb_data)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
@ -1361,7 +1084,7 @@ static void add_trigger_function(enum triggerop oper, enum triggerfunc func,
* simple pin change and state triggers. Only two transitions (rise/fall) can be
* set at any time, but a full mask and value can be set (0/1).
*/
static int build_basic_trigger(struct triggerlut *lut, struct dev_context *devc)
SR_PRIV int sigma_build_basic_trigger(struct triggerlut *lut, struct dev_context *devc)
{
int i,j;
uint16_t masks[2] = { 0, 0 };
@ -1406,146 +1129,3 @@ static int build_basic_trigger(struct triggerlut *lut, struct dev_context *devc)
return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
{
struct dev_context *devc;
struct clockselect_50 clockselect;
int frac, triggerpin, ret;
uint8_t triggerselect = 0;
struct triggerinout triggerinout_conf;
struct triggerlut lut;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
devc = sdi->priv;
if (convert_trigger(sdi) != SR_OK) {
sr_err("Failed to configure triggers.");
return SR_ERR;
}
/* If the samplerate has not been set, default to 200 kHz. */
if (devc->cur_firmware == -1) {
if ((ret = set_samplerate(sdi, SR_KHZ(200))) != SR_OK)
return ret;
}
/* Enter trigger programming mode. */
sigma_set_register(WRITE_TRIGGER_SELECT1, 0x20, devc);
/* 100 and 200 MHz mode. */
if (devc->cur_samplerate >= SR_MHZ(100)) {
sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81, devc);
/* Find which pin to trigger on from mask. */
for (triggerpin = 0; triggerpin < 8; ++triggerpin)
if ((devc->trigger.risingmask | devc->trigger.fallingmask) &
(1 << triggerpin))
break;
/* Set trigger pin and light LED on trigger. */
triggerselect = (1 << LEDSEL1) | (triggerpin & 0x7);
/* Default rising edge. */
if (devc->trigger.fallingmask)
triggerselect |= 1 << 3;
/* All other modes. */
} else if (devc->cur_samplerate <= SR_MHZ(50)) {
build_basic_trigger(&lut, devc);
sigma_write_trigger_lut(&lut, devc);
triggerselect = (1 << LEDSEL1) | (1 << LEDSEL0);
}
/* Setup trigger in and out pins to default values. */
memset(&triggerinout_conf, 0, sizeof(struct triggerinout));
triggerinout_conf.trgout_bytrigger = 1;
triggerinout_conf.trgout_enable = 1;
sigma_write_register(WRITE_TRIGGER_OPTION,
(uint8_t *) &triggerinout_conf,
sizeof(struct triggerinout), devc);
/* Go back to normal mode. */
sigma_set_register(WRITE_TRIGGER_SELECT1, triggerselect, devc);
/* Set clock select register. */
if (devc->cur_samplerate == SR_MHZ(200))
/* Enable 4 channels. */
sigma_set_register(WRITE_CLOCK_SELECT, 0xf0, devc);
else if (devc->cur_samplerate == SR_MHZ(100))
/* Enable 8 channels. */
sigma_set_register(WRITE_CLOCK_SELECT, 0x00, devc);
else {
/*
* 50 MHz mode (or fraction thereof). Any fraction down to
* 50 MHz / 256 can be used, but is not supported by sigrok API.
*/
frac = SR_MHZ(50) / devc->cur_samplerate - 1;
clockselect.async = 0;
clockselect.fraction = frac;
clockselect.disabled_channels = 0;
sigma_write_register(WRITE_CLOCK_SELECT,
(uint8_t *) &clockselect,
sizeof(clockselect), devc);
}
/* Setup maximum post trigger time. */
sigma_set_register(WRITE_POST_TRIGGER,
(devc->capture_ratio * 255) / 100, devc);
/* Start acqusition. */
gettimeofday(&devc->start_tv, 0);
sigma_set_register(WRITE_MODE, 0x0d, devc);
devc->cb_data = cb_data;
/* Send header packet to the session bus. */
std_session_send_df_header(sdi, LOG_PREFIX);
/* Add capture source. */
sr_session_source_add(sdi->session, -1, 0, 10, receive_data, (void *)sdi);
devc->state.state = SIGMA_CAPTURE;
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
struct dev_context *devc;
(void)cb_data;
devc = sdi->priv;
devc->state.state = SIGMA_IDLE;
sr_session_source_remove(sdi->session, -1);
return SR_OK;
}
SR_PRIV struct sr_dev_driver asix_sigma_driver_info = {
.name = "asix-sigma",
.longname = "ASIX SIGMA/SIGMA2",
.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,
};

32
src/hardware/asix-sigma/asix-sigma.h → src/hardware/asix-sigma/protocol.h
View File

@ -1,7 +1,7 @@
/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2010 Håvard Espeland <gus@ping.uio.no>,
* Copyright (C) 2010-2012 Håvard Espeland <gus@ping.uio.no>,
* Copyright (C) 2010 Martin Stensgård <mastensg@ping.uio.no>
* Copyright (C) 2010 Carl Henrik Lunde <chlunde@ping.uio.no>
*
@ -19,11 +19,24 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBSIGROK_HARDWARE_ASIX_SIGMA_ASIX_SIGMA_H
#define LIBSIGROK_HARDWARE_ASIX_SIGMA_ASIX_SIGMA_H
#ifndef LIBSIGROK_HARDWARE_ASIX_SIGMA_PROTOCOL_H
#define LIBSIGROK_HARDWARE_ASIX_SIGMA_PROTOCOL_H
#include <stdint.h>
#include <glib.h>
#include <ftdi.h>
#include <string.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
#define LOG_PREFIX "asix-sigma"
#define USB_VENDOR 0xa600
#define USB_PRODUCT 0xa000
#define USB_DESCRIPTION "ASIX SIGMA"
#define USB_VENDOR_NAME "ASIX"
#define USB_MODEL_NAME "SIGMA"
enum sigma_write_register {
WRITE_CLOCK_SELECT = 0,
WRITE_TRIGGER_SELECT0 = 1,
@ -208,4 +221,17 @@ struct dev_context {
void *cb_data;
};
extern SR_PRIV const uint64_t samplerates[];
extern SR_PRIV const int SAMPLERATES_COUNT;
SR_PRIV int sigma_write_register(uint8_t reg, uint8_t *data, size_t len,
struct dev_context *devc);
SR_PRIV int sigma_set_register(uint8_t reg, uint8_t value, struct dev_context *devc);
SR_PRIV int sigma_write_trigger_lut(struct triggerlut *lut, struct dev_context *devc);
SR_PRIV void sigma_clear_helper(void *priv);
SR_PRIV int sigma_set_samplerate(const struct sr_dev_inst *sdi, uint64_t samplerate);
SR_PRIV int sigma_convert_trigger(const struct sr_dev_inst *sdi);
SR_PRIV int sigma_receive_data(int fd, int revents, void *cb_data);
SR_PRIV int sigma_build_basic_trigger(struct triggerlut *lut, struct dev_context *devc);
#endif