X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhardware%2Fasix-sigma%2Fapi.c;h=8e1a490aa345ee6e91ea8a968236d0899c2ad8cf;hb=095eba19d6ddda139f01eeb36e81f06bd2d91748;hp=d420998889ed3b821db735ddfee86cdc554d87c4;hpb=bee2b0168c087676c1b365861d8c2d4714afa9b9;p=libsigrok.git
diff --git a/src/hardware/asix-sigma/api.c b/src/hardware/asix-sigma/api.c
index d4209988..8e1a490a 100644
--- a/src/hardware/asix-sigma/api.c
+++ b/src/hardware/asix-sigma/api.c
@@ -19,10 +19,6 @@
* along with this program. If not, see .
*/
-/*
- * ASIX SIGMA/SIGMA2 logic analyzer driver
- */
-
#include
#include "protocol.h"
@@ -42,23 +38,31 @@ static const uint32_t drvopts[] = {
static const uint32_t devopts[] = {
SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
- SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+#if ASIX_SIGMA_WITH_TRIGGER
SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
+#endif
};
+#if ASIX_SIGMA_WITH_TRIGGER
static const int32_t trigger_matches[] = {
SR_TRIGGER_ZERO,
SR_TRIGGER_ONE,
SR_TRIGGER_RISING,
SR_TRIGGER_FALLING,
};
+#endif
+static void clear_helper(struct dev_context *devc)
+{
+ ftdi_deinit(&devc->ftdic);
+}
static int dev_clear(const struct sr_dev_driver *di)
{
- return std_dev_clear(di, sigma_clear_helper);
+ return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
}
static GSList *scan(struct sr_dev_driver *di, GSList *options)
@@ -77,8 +81,6 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
ftdi_init(&devc->ftdic);
- /* Look for SIGMAs. */
-
if ((ret = ftdi_usb_find_all(&devc->ftdic, &devlist,
USB_VENDOR, USB_PRODUCT)) <= 0) {
if (ret < 0)
@@ -100,26 +102,24 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
sr_info("Found ASIX SIGMA - Serial: %s", serial_txt);
devc->cur_samplerate = samplerates[0];
- devc->period_ps = 0;
devc->limit_msec = 0;
+ devc->limit_samples = 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->vendor = g_strdup("ASIX");
+ sdi->model = g_strdup("SIGMA");
for (i = 0; i < ARRAY_SIZE(channel_names); i++)
sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_names[i]);
sdi->priv = devc;
- /* We will open the device again when we need it. */
ftdi_list_free(&devlist);
return std_scan_complete(di, g_slist_append(NULL, sdi));
@@ -137,18 +137,13 @@ static int dev_open(struct sr_dev_inst *sdi)
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;
+ USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) {
+ sr_err("Failed to open device (%d): %s.",
+ ret, ftdi_get_error_string(&devc->ftdic));
+ return SR_ERR;
}
- sdi->status = SR_ST_ACTIVE;
-
return SR_OK;
}
@@ -158,17 +153,11 @@ static int dev_close(struct sr_dev_inst *sdi)
devc = sdi->priv;
- /* TODO */
- if (sdi->status == SR_ST_ACTIVE)
- ftdi_usb_close(&devc->ftdic);
-
- sdi->status = SR_ST_INACTIVE;
-
- return SR_OK;
+ return (ftdi_usb_close(&devc->ftdic) == 0) ? SR_OK : SR_ERR;
}
-static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+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;
@@ -185,9 +174,14 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
case SR_CONF_LIMIT_MSEC:
*data = g_variant_new_uint64(devc->limit_msec);
break;
+ case SR_CONF_LIMIT_SAMPLES:
+ *data = g_variant_new_uint64(devc->limit_samples);
+ break;
+#if ASIX_SIGMA_WITH_TRIGGER
case SR_CONF_CAPTURE_RATIO:
*data = g_variant_new_uint64(devc->capture_ratio);
break;
+#endif
default:
return SR_ERR_NA;
}
@@ -195,79 +189,52 @@ static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *s
return SR_OK;
}
-static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+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;
+ return sigma_set_samplerate(sdi, g_variant_get_uint64(data));
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;
+ devc->limit_msec = g_variant_get_uint64(data);
break;
case SR_CONF_LIMIT_SAMPLES:
- tmp = g_variant_get_uint64(data);
- devc->limit_msec = tmp * 1000 / devc->cur_samplerate;
+ devc->limit_samples = g_variant_get_uint64(data);
+ devc->limit_msec = sigma_limit_samples_to_msec(devc,
+ devc->limit_samples);
break;
+#if ASIX_SIGMA_WITH_TRIGGER
case SR_CONF_CAPTURE_RATIO:
- tmp = g_variant_get_uint64(data);
- if (tmp <= 100)
- devc->capture_ratio = tmp;
- else
- ret = SR_ERR;
+ devc->capture_ratio = g_variant_get_uint64(data);
break;
+#endif
default:
- ret = SR_ERR_NA;
+ return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
-static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+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;
+ return STD_CONFIG_LIST(key, data, sdi, cg, NULL, drvopts, devopts);
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);
+ *data = std_gvar_samplerates(samplerates, samplerates_count);
break;
+#if ASIX_SIGMA_WITH_TRIGGER
case SR_CONF_TRIGGER_MATCH:
- *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
- trigger_matches, ARRAY_SIZE(trigger_matches),
- sizeof(int32_t));
+ *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
break;
+#endif
default:
return SR_ERR_NA;
}
@@ -279,13 +246,13 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
struct clockselect_50 clockselect;
- int frac, triggerpin, ret;
- uint8_t triggerselect = 0;
+ int triggerpin, ret;
+ uint8_t triggerselect;
struct triggerinout triggerinout_conf;
struct triggerlut lut;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ uint8_t regval;
+ uint8_t clock_bytes[sizeof(clockselect)];
+ size_t clock_idx;
devc = sdi->priv;
@@ -303,8 +270,9 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
/* Enter trigger programming mode. */
sigma_set_register(WRITE_TRIGGER_SELECT1, 0x20, devc);
- /* 100 and 200 MHz mode. */
+ triggerselect = 0;
if (devc->cur_samplerate >= SR_MHZ(100)) {
+ /* 100 and 200 MHz mode. */
sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81, devc);
/* Find which pin to trigger on from mask. */
@@ -320,8 +288,8 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
if (devc->trigger.fallingmask)
triggerselect |= 1 << 3;
- /* All other modes. */
} else if (devc->cur_samplerate <= SR_MHZ(50)) {
+ /* All other modes. */
sigma_build_basic_trigger(&lut, devc);
sigma_write_trigger_lut(&lut, devc);
@@ -342,35 +310,43 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
sigma_set_register(WRITE_TRIGGER_SELECT1, triggerselect, devc);
/* Set clock select register. */
- if (devc->cur_samplerate == SR_MHZ(200))
+ clockselect.async = 0;
+ clockselect.fraction = 1 - 1; /* Divider 1. */
+ clockselect.disabled_channels = 0x0000; /* All channels enabled. */
+ 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))
+ clockselect.disabled_channels = 0xf0ff;
+ } else if (devc->cur_samplerate == SR_MHZ(100)) {
/* Enable 8 channels. */
- sigma_set_register(WRITE_CLOCK_SELECT, 0x00, devc);
- else {
+ clockselect.disabled_channels = 0x00ff;
+ } else {
/*
- * 50 MHz mode (or fraction thereof). Any fraction down to
- * 50 MHz / 256 can be used, but is not supported by sigrok API.
+ * 50 MHz mode, or fraction thereof. The 50MHz reference
+ * can get divided by any integer in the range 1 to 256.
+ * Divider minus 1 gets written to the hardware.
+ * (The driver lists a discrete set of sample rates, but
+ * all of them fit the above description.)
*/
- 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);
+ clockselect.fraction = SR_MHZ(50) / devc->cur_samplerate - 1;
}
+ clock_idx = 0;
+ clock_bytes[clock_idx++] = clockselect.async;
+ clock_bytes[clock_idx++] = clockselect.fraction;
+ clock_bytes[clock_idx++] = clockselect.disabled_channels & 0xff;
+ clock_bytes[clock_idx++] = clockselect.disabled_channels >> 8;
+ sigma_write_register(WRITE_CLOCK_SELECT, clock_bytes, clock_idx, 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->start_time = g_get_monotonic_time();
+ regval = WMR_TRGRES | WMR_SDRAMWRITEEN;
+#if ASIX_SIGMA_WITH_TRIGGER
+ regval |= WMR_TRGEN;
+#endif
+ sigma_set_register(WRITE_MODE, regval, devc);
std_session_send_df_header(sdi);
@@ -387,9 +363,20 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi)
struct dev_context *devc;
devc = sdi->priv;
- devc->state.state = SIGMA_IDLE;
- sr_session_source_remove(sdi->session, -1);
+ /*
+ * When acquisition is currently running, keep the receive
+ * routine registered and have it stop the acquisition upon the
+ * next invocation. Else unregister the receive routine here
+ * already. The detour is required to have sample data retrieved
+ * for forced acquisition stops.
+ */
+ if (devc->state.state == SIGMA_CAPTURE) {
+ devc->state.state = SIGMA_STOPPING;
+ } else {
+ devc->state.state = SIGMA_IDLE;
+ sr_session_source_remove(sdi->session, -1);
+ }
return SR_OK;
}