#include "libsigrok-internal.h"
#include "protocol.h"
-
-#define SERIALCOMM "115200/8n1"
+//Baud rate is really a don't care because we run USB CDC, dtr must be 1.
+//flow should be zero since we don't
+//use xon/xoff
+#define SERIALCOMM "115200/8n1/dtr=1/rts=0/flow=0"
static const uint32_t scanopts[] = {
- SR_CONF_CONN, //Required OS name for the port, i.e. /dev/ttyACM0
- SR_CONF_SERIALCOMM, //Optional config of the port, i.e. 115200/8n1
+ SR_CONF_CONN, //Required OS name for the port, i.e. /dev/ttyACM0
+ SR_CONF_SERIALCOMM, //Optional config of the port, i.e. 115200/8n1
};
-
-//PulseView reads a sample rate config list as a min, max and step.
-//If step is 1 then it creates a 1,2,5,10 set of selects, as well as the max.
-//If step is not 1, then it gives a place to enter any value, which gives the greatest flexibility
+//Sample rate can either provide a std_gvar_samplerates_steps or a std_gvar_samplerates.
+//The latter is just a long list of every supported rate.
+//For the steps, pulseview/pv/toolbars/mainbar.cpp will do a min,max,step. If step is
+//1 then it provides a 1,2,5,10 select otherwise it allows a spin box.
+//Going with the full list because while the spin box is more flexible, it is harder to read
static const uint64_t samplerates[] = {
- SR_HZ(10),
- SR_MHZ(120),
- SR_HZ(2),
+ SR_KHZ(5),
+ SR_KHZ(6),
+ SR_KHZ(8),
+ SR_KHZ(10),
+ SR_KHZ(20),
+ SR_KHZ(30),
+ SR_KHZ(40),
+ SR_KHZ(50),
+ SR_KHZ(60),
+ SR_KHZ(80),
+ SR_KHZ(100),
+ SR_KHZ(125),
+ SR_KHZ(150),
+ SR_KHZ(160),//max rate of 3 ADC channels that has integer divisor/dividend
+ SR_KHZ(200),
+ SR_KHZ(250), //max rate of 2 ADC channels
+ SR_KHZ(300),
+ SR_KHZ(400),
+ SR_KHZ(500),
+ SR_KHZ(600),
+ SR_KHZ(800),
+ //Give finer granularity near the thresholds of RLE effectiveness ~1-4Msps
+ //Also use 1.2 and 2.4 as likely max values for ADC overclocking
+ SR_MHZ(1),
+ SR_MHZ(1.2),
+ SR_MHZ(1.5),
+ SR_MHZ(2),
+ SR_MHZ(2.4),
+ SR_MHZ(3),
+ SR_MHZ(4),
+ SR_MHZ(5),
+ SR_MHZ(6),
+ SR_MHZ(8),
+ SR_MHZ(10),
+ SR_MHZ(15),
+ SR_MHZ(20),
+ SR_MHZ(30),
+ SR_MHZ(40),
+ SR_MHZ(60),
+ //The baseline 120Mhz PICO clock won't support an 80 or 100
+ //with non fractional divisor, but an overclocked version or one
+ //that modified sysclk could
+ SR_MHZ(80),
+ SR_MHZ(100),
+ SR_MHZ(120),
+ //These may not be practically useful, but someone might want to
+ //try to make it work with overclocking
+ SR_MHZ(150),
+ SR_MHZ(200),
+ SR_MHZ(240)
};
static const uint32_t drvopts[] = {
- SR_CONF_OSCILLOSCOPE,
- SR_CONF_LOGIC_ANALYZER,
+ SR_CONF_OSCILLOSCOPE,
+ SR_CONF_LOGIC_ANALYZER,
};
+
//SW trigger requires this
static const int32_t trigger_matches[] = {
- SR_TRIGGER_ZERO,
- SR_TRIGGER_ONE,
- SR_TRIGGER_RISING,
- SR_TRIGGER_FALLING,
- SR_TRIGGER_EDGE,
+ SR_TRIGGER_ZERO,
+ SR_TRIGGER_ONE,
+ SR_TRIGGER_RISING,
+ SR_TRIGGER_FALLING,
+ SR_TRIGGER_EDGE,
};
static const uint32_t devopts[] = {
//CLI prefers LIMIT_SAMPLES to be a list of high,low
- SR_CONF_LIMIT_SAMPLES | 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,
+ SR_CONF_LIMIT_SAMPLES | 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,
//pulseview needs a list return to allow sample rate setting
- SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
};
static struct sr_dev_driver raspberrypi_pico_driver_info;
-static GSList *scan(struct sr_dev_driver *di, GSList *options)
+static GSList *scan(struct sr_dev_driver *di, GSList * options)
{
- struct sr_config *src;
- struct sr_dev_inst *sdi;
- struct sr_serial_dev_inst *serial;
- struct dev_context *devc;
- struct sr_channel *ch;
- GSList *l;
- int num_read;
- unsigned int i;
- const char *conn, *serialcomm;
- char buf[32];
- int len;
- uint8_t num_a,num_d,a_size;
- gchar *channel_name;
-
- 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;
-
- serial = sr_serial_dev_inst_new(conn, serialcomm);
- sr_info("Opening %s.", conn);
- if (serial_open(serial, SERIAL_RDWR) != SR_OK){
- sr_err("1st serial open fail");
- return NULL;
- }
-
- sr_info("Reseting device with *s at %s.", conn);
- send_serial_char(serial,'*');
- g_usleep(10000);
- //drain any inflight data
- do{
- sr_warn("Drain reads");
- len=serial_read_blocking(serial, buf,32,100);
- sr_warn("Drain reads done");
- if(len) sr_dbg("Dropping in flight serial data");
- }while(len>0);
-
-
- //Send identify
- num_read=send_serial_w_resp(serial,"i\n",buf,17);
- if(num_read<16){
- sr_err("1st identify failed");
- serial_close(serial);
- g_usleep(100000);
- if (serial_open(serial, SERIAL_RDWR) != SR_OK){
- sr_err("2st serial open fail");
- return NULL;
- }
- g_usleep(100000);
- sr_err("Send second *");
- send_serial_char(serial,'*');
- g_usleep(100000);
- num_read=send_serial_w_resp(serial,"i\n",buf,17);
- if(num_read<10){
- sr_err("Second attempt failed");
- return NULL;
- }
- }
- //Expected ID response is SRPICO,AxxyDzz,VV
- //where xx are number of analog channels, y is bytes per analog sample
- //and zz is number of digital channels, and VV is two digit version# which must be 00
- if((num_read<16)
- ||(strncmp(buf,"SRPICO,A",8))
- ||(buf[11]!='D')
- ||(buf[15]!='0')
- ||(buf[16]!='0')){
- sr_err("ERROR:Bad response string %s %d",buf,num_read);
- return NULL;
- }
- a_size=buf[10]-'0';
- buf[10]='\0'; //Null to end the str for atois
- buf[14]='\0'; //Null to end the str for atois
- num_a=atoi(&buf[8]);
- num_d=atoi(&buf[12]);
-
- sdi = g_malloc0(sizeof(struct sr_dev_inst));
- sdi->status = SR_ST_INACTIVE;
- sdi->vendor = g_strdup("Raspberry Pi");
- sdi->model = g_strdup("PICO");
- sdi->version = g_strdup("00");
- sdi->conn = serial;
- sdi->driver = &raspberrypi_pico_driver_info;
- sdi->inst_type = SR_INST_SERIAL;
- sdi->serial_num = g_strdup("N/A");
- if(((num_a==0)&&(num_d==0))
- ||(num_a>MAX_ANALOG_CHANNELS)
- ||(num_d>MAX_DIGITAL_CHANNELS)
- ||(a_size<1)
- ||(a_size>4)){
- sr_err("ERROR: invalid channel config a %d d %d asz %d",num_a,num_d,a_size);
- return NULL;
- }
- devc = g_malloc0(sizeof(struct dev_context));
- devc->a_size=a_size;
- //multiple bytes per analog sample not supported
- if((num_a>0)&&(devc->a_size!=1)){
- sr_err("Only Analog Size of 1 supported\n\r");
- return NULL;
- }
- devc->num_a_channels=num_a;
- devc->num_d_channels=num_d;
- devc->a_chan_mask=((1<<num_a)-1);
- devc->d_chan_mask=((1<<num_d)-1);
+ struct sr_config *src;
+ struct sr_dev_inst *sdi;
+ struct sr_serial_dev_inst *serial;
+ struct dev_context *devc;
+ struct sr_channel *ch;
+ GSList *l;
+ int num_read;
+ unsigned int i;
+ const char *conn, *serialcomm;
+ char buf[32];
+ int len;
+ uint8_t num_a, num_d, a_size;
+ gchar *channel_name;
+
+ 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;
+
+ serial = sr_serial_dev_inst_new(conn, serialcomm);
+ sr_info("Opening %s.", conn);
+ if (serial_open(serial, SERIAL_RDWR) != SR_OK) {
+ sr_err("1st serial open fail");
+ return NULL;
+ }
+
+ sr_info("Resetting device with *s at %s.", conn);
+ send_serial_char(serial, '*');
+ g_usleep(10000);
+ //drain any inflight data
+ do {
+ sr_warn("Drain reads");
+ len = serial_read_blocking(serial, buf, 32, 100);
+ sr_warn("Drain reads done");
+ if (len)
+ sr_dbg("Dropping in flight serial data");
+ } while (len > 0);
+
+
+ //Send identify
+ num_read = send_serial_w_resp(serial, "i\n", buf, 17);
+ if (num_read < 16) {
+ sr_err("1st identify failed");
+ serial_close(serial);
+ g_usleep(100000);
+ if (serial_open(serial, SERIAL_RDWR) != SR_OK) {
+ sr_err("2nd serial open fail");
+ return NULL;
+ }
+ g_usleep(100000);
+ sr_err("Send second *");
+ send_serial_char(serial, '*');
+ g_usleep(100000);
+ num_read = send_serial_w_resp(serial, "i\n", buf, 17);
+ if (num_read < 10) {
+ sr_err("Second attempt failed");
+ return NULL;
+ }
+ }
+ //Expected ID response is SRPICO,AxxyDzz,VV
+ //where xx are number of analog channels, y is bytes per analog sample
+ //and zz is number of digital channels, and VV is two digit version# which must be 02
+ if ((num_read < 16)
+ || (strncmp(buf, "SRPICO,A", 8))
+ || (buf[11] != 'D')
+ || (buf[15] != '0')
+ || (buf[16] != '2')) {
+ sr_err("ERROR:Bad response string %s %d", buf, num_read);
+ return NULL;
+ }
+ a_size = buf[10] - '0';
+ buf[10] = '\0'; //Null to end the str for atois
+ buf[14] = '\0'; //Null to end the str for atois
+ num_a = atoi(&buf[8]);
+ num_d = atoi(&buf[12]);
+
+ sdi = g_malloc0(sizeof(struct sr_dev_inst));
+ sdi->status = SR_ST_INACTIVE;
+ sdi->vendor = g_strdup("Raspberry Pi");
+ sdi->model = g_strdup("PICO");
+ sdi->version = g_strdup("00");
+ sdi->conn = serial;
+ sdi->driver = &raspberrypi_pico_driver_info;
+ sdi->inst_type = SR_INST_SERIAL;
+ sdi->serial_num = g_strdup("N/A");
+ if (((num_a == 0) && (num_d == 0))
+ || (num_a > MAX_ANALOG_CHANNELS)
+ || (num_d > MAX_DIGITAL_CHANNELS)
+ || (a_size < 1)
+ || (a_size > 4)) {
+ sr_err("ERROR: invalid channel config a %d d %d asz %d",
+ num_a, num_d, a_size);
+ return NULL;
+ }
+ devc = g_malloc0(sizeof(struct dev_context));
+ devc->a_size = a_size;
+ //multiple bytes per analog sample not supported
+ if ((num_a > 0) && (devc->a_size != 1)) {
+ sr_err("Only Analog Size of 1 supported\n\r");
+ return NULL;
+ }
+ devc->num_a_channels = num_a;
+ devc->num_d_channels = num_d;
+ devc->a_chan_mask = ((1 << num_a) - 1);
+ devc->d_chan_mask = ((1 << num_d) - 1);
//The number of bytes that each digital sample in the buffers sent to the session.
//All logical channels are packed together, where a slice of N channels takes roundup(N/8) bytes
//This never changes even if channels are disabled because PV expects disabled channels to still
//be accounted for in the packing
- devc->dig_sample_bytes=((devc->num_d_channels+7)/8);
- //These are the slice sizes of the data on the wire
- //1 7 bit field per byte
- devc->bytes_per_slice=(devc->num_a_channels*devc->a_size);
- if(devc->num_d_channels>0){
- // logic sent in groups of 7
- devc->bytes_per_slice+=(devc->num_d_channels+6)/7;
- }
- sr_dbg("num channels a %d d %d bps %d dsb %d",num_a,num_d,devc->bytes_per_slice,devc->dig_sample_bytes);
+ devc->dig_sample_bytes = ((devc->num_d_channels + 7) / 8);
+ //These are the slice sizes of the data on the wire
+ //1 7 bit field per byte
+ devc->bytes_per_slice = (devc->num_a_channels * devc->a_size);
+ if (devc->num_d_channels > 0) {
+ // logic sent in groups of 7
+ devc->bytes_per_slice += (devc->num_d_channels + 6) / 7;
+ }
+ sr_dbg("num channels a %d d %d bps %d dsb %d", num_a, num_d,
+ devc->bytes_per_slice, devc->dig_sample_bytes);
//Each analog channel is it's own group
//Digital are just channels
//Grouping of channels is rather arbitrary as parameters like sample rate and number of samples
//apply to all changes. Analog channels do have a scale and offset, but that is applied
//without involvement of the session.
- devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group *) *
- devc->num_a_channels);
- for (i = 0; i < devc->num_a_channels; i++) {
- channel_name = g_strdup_printf("A%d", i );
- //sdi, index, type, enabled,name
- ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_name);
- devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
- devc->analog_groups[i]->name = channel_name;
- devc->analog_groups[i]->channels = g_slist_append(NULL, ch);
- sdi->channel_groups = g_slist_append(sdi->channel_groups,
- devc->analog_groups[i]);
- }
-
- if (devc->num_d_channels>0) {
- for (i = 0; i < devc->num_d_channels; i++){
- //Name digital channels starting at D2 to match pico board pin names
- channel_name = g_strdup_printf("D%d", i+2);
- sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
- channel_name);
- g_free(channel_name);
- }
-
- }
- //In large sample usages we get the call to receive with large transfers.
- //Since the CDC serial implemenation can silenty lose data as it gets close to full, allocate
- //storage for a half buffer which in a worst case scenario has 2x ratio of transmitted bytes
- // to storage bytes.
- //Note: The intent of making this buffer large is to prevent CDC serial buffer overflows.
- //However, it is likely that if the host is running slow (i.e. it's a raspberry pi model 3) that it becomes
- //compute bound and doesn't service CDC serial responses in time to not overflow the internal CDC buffers.
- //And thus no serial buffer is large enough. But, it's only 256K....
- devc->serial_buffer_size=256000;
- devc->buffer=NULL;
- sr_dbg("Setting serial buffer size: %i.", devc->serial_buffer_size);
- devc->cbuf_wrptr=0;
- //While slices are sent as a group of one sample across all channels, sigrok wants analog
- //channel data sent as separate packets.
- //Logical trace values are packed together.
- //A serial byte in normal mode never represent more than one sample so a 2x multiplier is plenty.
- //In D4 mode a serial byte can represents 100s of samples due to RLE, but process_D4 ensures that
- //it breaks up the rle_memset calls to prevent overflowing the sample buffer.
- //that it doesn't overflow the sample buffers.
- devc->sample_buf_size=devc->serial_buffer_size*2;
- for(i=0;i<devc->num_a_channels;i++){
- devc->a_data_bufs[i]=NULL;
- devc->a_pretrig_bufs[i]=NULL;
- }
- devc->d_data_buf=NULL;
- devc->sample_rate=5000;
- devc->capture_ratio=10;
- devc->rxstate=RX_IDLE;
- sdi->priv = devc;
- //Set an initial value as various code relies on an inital value.
- devc->limit_samples=1000;
-
- if(raspberrypi_pico_get_dev_cfg(sdi)!=SR_OK){
- return NULL;
- };
-
- sr_err("sr_err level logging enabled");
- sr_warn("sr_warn level logging enabled");
- sr_info("sr_info level logging enabled");
- sr_dbg("sr_dbg level logging enabled");
- sr_spew("sr_spew level logging enabled");
-
- return std_scan_complete(di, g_slist_append(NULL, sdi));
+ devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group *) *
+ devc->num_a_channels);
+ for (i = 0; i < devc->num_a_channels; i++) {
+ channel_name = g_strdup_printf("A%d", i);
+ //sdi, index, type, enabled,name
+ ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE,
+ channel_name);
+ devc->analog_groups[i] =
+ g_malloc0(sizeof(struct sr_channel_group));
+ devc->analog_groups[i]->name = channel_name;
+ devc->analog_groups[i]->channels =
+ g_slist_append(NULL, ch);
+ sdi->channel_groups =
+ g_slist_append(sdi->channel_groups,
+ devc->analog_groups[i]);
+ }
+
+ if (devc->num_d_channels > 0) {
+ for (i = 0; i < devc->num_d_channels; i++) {
+ //Name digital channels starting at D2 to match pico board pin names
+ channel_name = g_strdup_printf("D%d", i + 2);
+ sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE,
+ channel_name);
+ g_free(channel_name);
+ }
+
+ }
+ //In large sample usages we get the call to receive with large transfers.
+ //Since the CDC serial implemenation can silenty lose data as it gets close to full, allocate
+ //storage for a half buffer which in a worst case scenario has 2x ratio of transmitted bytes
+ // to storage bytes.
+ //Note: The intent of making this buffer large is to prevent CDC serial buffer overflows.
+ //However, it is likely that if the host is running slow (i.e. it's a raspberry pi model 3) that it becomes
+ //compute bound and doesn't service CDC serial responses in time to not overflow the internal CDC buffers.
+ //And thus no serial buffer is large enough. But, it's only 32K....
+ devc->serial_buffer_size = 32000;
+ devc->buffer = NULL;
+ sr_dbg("Setting serial buffer size: %i.",
+ devc->serial_buffer_size);
+ devc->cbuf_wrptr = 0;
+ //While slices are sent as a group of one sample across all channels, sigrok wants analog
+ //channel data sent as separate packets.
+ //Logical trace values are packed together.
+ //An RLE byte in normal mode can represent up to 1640 samples.
+ //In D4 an RLE byte can represents up to 640 samples.
+ //Rather than making the sample_buf_size 1640x the size of serial buff, we require that the process loops
+ //push samples to the session as we get anywhere close to full.
+
+ devc->sample_buf_size = devc->serial_buffer_size;
+ for (i = 0; i < devc->num_a_channels; i++) {
+ devc->a_data_bufs[i] = NULL;
+ devc->a_pretrig_bufs[i] = NULL;
+ }
+ devc->d_data_buf = NULL;
+ devc->sample_rate = 5000;
+ devc->capture_ratio = 10;
+ devc->rxstate = RX_IDLE;
+ sdi->priv = devc;
+ //Set an initial value as various code relies on an inital value.
+ devc->limit_samples = 1000;
+
+ if (raspberrypi_pico_get_dev_cfg(sdi) != SR_OK) {
+ return NULL;
+ };
+
+ sr_err("sr_err level logging enabled");
+ sr_warn("sr_warn level logging enabled");
+ sr_info("sr_info level logging enabled");
+ sr_dbg("sr_dbg level logging enabled");
+ sr_spew("sr_spew level logging enabled");
+ serial_close(serial);
+ return std_scan_complete(di, g_slist_append(NULL, sdi));
}
//Note that on the initial driver load we pull all values into local storage.
//Thus gets can return local data, but sets have to issue commands to device.
-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;
- int ret;
- (void)cg;
- if (!sdi)
- return SR_ERR_ARG;
- devc=sdi->priv;
- ret = SR_OK;
- sr_dbg("Got config_set key %d \n",key);
- switch (key) {
- case SR_CONF_SAMPLERATE:
- devc->sample_rate = g_variant_get_uint64(data);
- sr_dbg("config_set sr %llu\n",devc->sample_rate);
- break;
- case SR_CONF_LIMIT_SAMPLES:
- devc->limit_samples = g_variant_get_uint64(data);
- sr_dbg("config_set slimit %lld\n",devc->limit_samples);
- break;
- case SR_CONF_CAPTURE_RATIO:
- devc->capture_ratio = g_variant_get_uint64(data);
- break;
-
- default:
- sr_err("ERROR:config_set undefine %d\n",key);
- ret = SR_ERR_NA;
- }
-
- return ret;
+ struct dev_context *devc;
+ int ret;
+ (void) cg;
+ if (!sdi)
+ return SR_ERR_ARG;
+ devc = sdi->priv;
+ ret = SR_OK;
+ sr_dbg("Got config_set key %d \n", key);
+ switch (key) {
+ case SR_CONF_SAMPLERATE:
+ devc->sample_rate = g_variant_get_uint64(data);
+ sr_dbg("config_set sr %llu\n", devc->sample_rate);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ devc->limit_samples = g_variant_get_uint64(data);
+ sr_dbg("config_set slimit %" PRIu64 "\n", devc->limit_samples);
+ break;
+ case SR_CONF_CAPTURE_RATIO:
+ devc->capture_ratio = g_variant_get_uint64(data);
+ break;
+
+ default:
+ sr_err("ERROR:config_set undefine %d\n", key);
+ ret = SR_ERR_NA;
+ }
+
+ return ret;
}
-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;
- sr_dbg("at config_get key %d",key);
- (void)cg;
- if (!sdi)
- return SR_ERR_ARG;
-
- devc = sdi->priv;
- switch (key) {
- case SR_CONF_SAMPLERATE:
- *data = g_variant_new_uint64(devc->sample_rate);
- sr_spew("sample rate get of %lld",devc->sample_rate);
- break;
- case SR_CONF_CAPTURE_RATIO:
- if (!sdi)
- return SR_ERR;
- devc = sdi->priv;
- *data = g_variant_new_uint64(devc->capture_ratio);
- break;
- case SR_CONF_LIMIT_SAMPLES:
- sr_spew("config_get limit_samples of %llu",devc->limit_samples);
- *data = g_variant_new_uint64(devc->limit_samples);
- break;
- default:
- sr_spew("unsupported cfg_get key %d",key);
- return SR_ERR_NA;
- }
- return SR_OK;
+ struct dev_context *devc;
+ sr_dbg("at config_get key %d", key);
+ (void) cg;
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ switch (key) {
+ case SR_CONF_SAMPLERATE:
+ *data = g_variant_new_uint64(devc->sample_rate);
+ sr_spew("sample rate get of %" PRIu64 "", devc->sample_rate);
+ break;
+ case SR_CONF_CAPTURE_RATIO:
+ if (!sdi)
+ return SR_ERR;
+ devc = sdi->priv;
+ *data = g_variant_new_uint64(devc->capture_ratio);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ sr_spew("config_get limit_samples of %llu",
+ devc->limit_samples);
+ *data = g_variant_new_uint64(devc->limit_samples);
+ break;
+ default:
+ sr_spew("unsupported cfg_get key %d", key);
+ return SR_ERR_NA;
+ }
+ 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)
{
- (void)cg;
- //scan or device options are the only ones that can be called without a defined instance
- if((key==SR_CONF_SCAN_OPTIONS)||(key==SR_CONF_DEVICE_OPTIONS)){
- return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
- }
- if (!sdi){
- sr_err("ERROR:\n\r\n\r\n\r Call to config list with null sdi\n\r\n\r");
- return SR_ERR_ARG;
- }
- sr_dbg("start config_list with key %X\n",key);
- switch(key){
-//Pulseview in pulseview/pv/toolbars/mainbar.cpp requires list support for frequencies as a triple
-//of min,max,step. If step is 1, then it proves a 1,2,5,10 select, but if not 1 it allows a spin box
- case SR_CONF_SAMPLERATE:
- sr_dbg("Return sample rate list");
- *data = std_gvar_samplerates_steps(ARRAY_AND_SIZE(samplerates));
- break;
+ (void) cg;
+ //scan or device options are the only ones that can be called without a defined instance
+ if ((key == SR_CONF_SCAN_OPTIONS)
+ || (key == SR_CONF_DEVICE_OPTIONS)) {
+ return STD_CONFIG_LIST(key, data, sdi, cg, scanopts,
+ drvopts, devopts);
+ }
+ if (!sdi) {
+ sr_err
+ ("ERROR:\n\r\n\r\n\r Call to config list with null sdi\n\r\n\r");
+ return SR_ERR_ARG;
+ }
+ sr_dbg("start config_list with key %X\n", key);
+ switch (key) {
+ case SR_CONF_SAMPLERATE:
+ sr_dbg("Return sample rate list");
+ *data =
+ std_gvar_samplerates(ARRAY_AND_SIZE
+ (samplerates));
+ break;
//This must be set to get SW trigger support
- case SR_CONF_TRIGGER_MATCH:
- *data = std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
- break;
- case SR_CONF_LIMIT_SAMPLES:
- //Really this limit is up to the memory capacity of the host,
- //and users that pick huge values deserve what they get.
- //But setting this limit to prevent really crazy things.
- *data = std_gvar_tuple_u64(1LL,1000000000LL);
- sr_dbg("sr_config_list limit samples ");
- break;
- default:
- sr_dbg("reached default statement of config_list");
-
- return SR_ERR_NA;
- }
-
- return SR_OK;
+ case SR_CONF_TRIGGER_MATCH:
+ *data =
+ std_gvar_array_i32(ARRAY_AND_SIZE(trigger_matches));
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ //Really this limit is up to the memory capacity of the host,
+ //and users that pick huge values deserve what they get.
+ //But setting this limit to prevent really crazy things.
+ *data = std_gvar_tuple_u64(1LL, 1000000000LL);
+ sr_dbg("sr_config_list limit samples ");
+ break;
+ default:
+ sr_dbg("reached default statement of config_list");
+
+ return SR_ERR_NA;
+ }
+
+ return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
- struct sr_serial_dev_inst *serial;
- struct dev_context *devc;
- struct sr_channel *ch;
- struct sr_trigger *trigger;
- char tmpstr[20];
- GSList *l;
- int a_enabled=0,d_enabled=0,len;
- serial = sdi->conn;
- int i;
- devc = sdi->priv;
- sr_dbg("Enter acq start");
- sr_dbg("dsbstart %d",devc->dig_sample_bytes);
- devc->buffer = g_malloc(devc->serial_buffer_size);
- if(!(devc->buffer)){sr_err("ERROR:serial buffer malloc fail");return SR_ERR_MALLOC;}
- //Get device in idle state
- if(serial_drain(serial)!=SR_OK){sr_err("Initial Drain Failed\n\r");return SR_ERR;}
- send_serial_char(serial,'*');
- if(serial_drain(serial)!=SR_OK){sr_err("Second Drain Failed\n\r");return SR_ERR;}
-
- for (l = sdi->channels; l; l = l->next) {
- ch = l->data;
- sr_dbg("c %d enabled %d name %s\n",ch->index,ch->enabled,ch->name);
-
- if(ch->name[0]=='A'){
- devc->a_chan_mask&=~(1<<ch->index);
- if(ch->enabled) {
- devc->a_chan_mask|=(ch->enabled<<ch->index);
- a_enabled++;
- }
-// sr_dbg("A%d en %d mask 0x%X",ch->index,ch->enabled,devc->a_chan_mask);
-
- }
- if(ch->name[0]=='D'){
- devc->d_chan_mask&=~(1<<ch->index);
- if(ch->enabled) {
- devc->d_chan_mask|=(ch->enabled<<ch->index);
- d_enabled++;
- // sr_dbg("D%d en %d mask 0x%X",ch->index,ch->enabled,devc->d_chan_mask);
- }
- }
- sr_info("Channel enable masks D 0x%X A 0x%X",devc->d_chan_mask,devc->a_chan_mask);
- sprintf(tmpstr,"%c%d%d\n",ch->name[0],ch->enabled,ch->index);
- if (send_serial_w_ack(serial,tmpstr) != SR_OK){
- sr_err("ERROR:Channel enable fail");
- return SR_ERR;
- } else{
-
- }
- }//for all channels
- //ensure data channels are continuous
- int invalid=0;
- for(i=0;i<32;i++){
- if((devc->d_chan_mask>>i)&1){
- if(invalid){
- sr_err("Digital channel mask 0x%X not continous\n\r",devc->d_chan_mask);
- return SR_ERR;
- }
- }
- else{
- invalid=1;
- }
- }
- //recalculate bytes_per_slice.
- devc->bytes_per_slice=(a_enabled*devc->a_size);
-
- for(i=0;i<devc->num_d_channels;i+=7){
- if(((devc->d_chan_mask)>>i)&(0x7F)){(devc->bytes_per_slice)++;}
- }
- if((a_enabled==0)&&(d_enabled==0)){
- sr_err("ERROR:No channels enabled");
- return SR_ERR;
- }
- sr_dbg("bps %d\n",devc->bytes_per_slice);
-
- //Apply sample rate limits
- //Save off the lower rate values which are hacked way of getting configs to the device
- uint8_t cfg_bits;
- cfg_bits=(devc->sample_rate%10&0x6); //Only bits 2&1 are used as cfg_bits
- devc->sample_rate-=cfg_bits;
- sr_warn("Capture device cfg_bits of 0x%X from sample rate %lld",cfg_bits,devc->sample_rate);
- if((a_enabled==3)&&(devc->sample_rate>166660)){
- sr_err("ERROR:3 channel ADC sample rate dropped to 166.660khz");
- devc->sample_rate=166660;
- }
- if((a_enabled==2)&&(devc->sample_rate>250000)){
- sr_err("ERROR:2 channel ADC sample rate dropped to 250khz");
- devc->sample_rate=250000;
- }
- if((a_enabled==1)&&(devc->sample_rate>500000)){
- sr_err("ERROR:1 channel ADC sample rate dropped to 500khz");
- devc->sample_rate=500000;
- }
- //Depending on channel configs, rates below 5ksps are possible
- //but such a low rate can easily stream and this eliminates a lot
- //of special cases.
- if(devc->sample_rate<5000){
- sr_err("Sample rate override to min of 5ksps");
- devc->sample_rate=5000;
- }
- if(devc->sample_rate>120000000){
- sr_err("Sample rate override to max of 120Msps");
- devc->sample_rate=12000000;
- }
- //It may take a very large number of samples to notice, but if digital and analog are enabled
- //and either PIO or ADC are fractional the samples will skew over time.
- //24Mhz is the max common divisor to the 120Mhz and 48Mhz ADC clock
- //so force an integer divisor to it.
- if((a_enabled>0)&&(d_enabled>0)){
- if(24000000ULL%(devc->sample_rate)){
- uint32_t commondivint=24000000ULL/(devc->sample_rate);
- //Always increment the divisor so that we go down in frequency to avoid max sample rate issues
- commondivint++;
- devc->sample_rate=24000000ULL/commondivint;
- //While the common divisor is an integer, that does not mean the resulting sample rate is, and
- //we want to keep the sample_rate divisible by 10 to support the cfg_bits
- while((devc->sample_rate%10)&&(commondivint<4800)){
- commondivint++;
- devc->sample_rate=24000000ULL/commondivint;
- //sr_err(" sample rate of %llu div %u\n\r",devc->sample_rate,commondivint);
- }
- //Make sure the divisor increement didn't make use go too low.
- if(devc->sample_rate<5000){devc->sample_rate=50000;}
- sr_err("WARN: Forcing common integer divisor sample rate of %llu div %u\n\r",devc->sample_rate,commondivint);
- }
-
- }
- //If we are only digital only or only analog print a warning that the
- //fractional divisors aren't a true PLL fractional feedback loop and thus
- //could have sample to sample variation.
- if(a_enabled>0){
- if(48000000ULL%(devc->sample_rate*a_enabled)){
- sr_warn("WARN: Non integer ADC divisor of 48Mhz clock for sample rate %llu may cause sample to sample variability.",devc->sample_rate);
- }
- }
- if(d_enabled>0){
- if(120000000ULL%(devc->sample_rate)){
- sr_warn("WARN: Non integer PIO divisor of 120Mhz for sample rate %llu may cause sample to sample variability.",devc->sample_rate);
- }
- }
-
-
- //modulo 10 to add cfg_bits back in
- //All code above should create overrides that are multiples of 10, but add a check just in case.
- if(devc->sample_rate%10){
- sr_err("Output sample rate %llu not mod 10",devc->sample_rate);
- devc->sample_rate=(devc->sample_rate/10)*10;
- }
-
- devc->sample_rate+=cfg_bits;
- if(cfg_bits){
- sr_warn("Embedding cfg_bits of 0x%X in sample_rate %lld\n\r",cfg_bits,devc->sample_rate);
- }
- sprintf(&tmpstr[0],"R%llu\n", devc->sample_rate);
- if(send_serial_w_ack(serial, tmpstr)!=SR_OK) {
- sr_err("Sample rate to device failed");
- return SR_ERR;
- }
- sprintf(tmpstr,"L%lld\n", devc->limit_samples);
- if(send_serial_w_ack(serial, tmpstr)!=SR_OK) {
- sr_err("Sample limit to device failed");
- return SR_ERR;
- }
-
-
- devc->sent_samples=0;
- devc->byte_cnt=0;
- devc->bytes_avail=0;
- devc->wrptr=0;
- devc->cbuf_wrptr=0;
- len=serial_read_blocking(serial, devc->buffer, devc->serial_buffer_size,serial_timeout(serial, 4));
- if(len>0){
- sr_info("Pre-ARM drain had %d characters:",len);
- devc->buffer[len]=0;
- sr_info("%s",devc->buffer);
- }
-
- for(i=0;i<devc->num_a_channels;i++){
- devc->a_data_bufs[i]=g_malloc(devc->sample_buf_size*sizeof(float));
- if(!(devc->a_data_bufs[i])){sr_err("ERROR:analog buffer malloc fail");return SR_ERR_MALLOC;}
- }
- if(devc->num_d_channels>0){
- devc->d_data_buf=g_malloc(devc->sample_buf_size*devc->dig_sample_bytes);
- if(!(devc->d_data_buf)){sr_err("ERROR:logic buffer malloc fail");return SR_ERR_MALLOC;}
- }
-
- if ((trigger = sr_session_trigger_get(sdi->session))) {
- devc->pretrig_entries = (devc->capture_ratio * devc->limit_samples) / 100;
- devc->stl = soft_trigger_logic_new(sdi, trigger, devc->pretrig_entries);
- if (!devc->stl)
- return SR_ERR_MALLOC;
- devc->trigger_fired=FALSE;
- if(devc->pretrig_entries>0){
- sr_dbg("Allocating pretrig buffers size %d",devc->pretrig_entries);
- for(i=0;i<devc->num_a_channels;i++){
- if((devc->a_chan_mask>>i)&1){
- devc->a_pretrig_bufs[i] = g_malloc0(sizeof(float)*devc->pretrig_entries);
- if(!devc->a_pretrig_bufs[i]){
- sr_err("ERROR:Analog pretrigger buffer malloc failure, disabling");
- devc->trigger_fired=TRUE;
- }
- }//if chan_mask
- }//for num_a_channels
- }//if pre_trigger
- sr_info("Entering sw triggered mode");
- //post the receive before starting the device to ensure we are ready to receive data ASAP
- serial_source_add(sdi->session, serial, G_IO_IN, 200,raspberrypi_pico_receive, (void *) sdi);
- sprintf(tmpstr,"C\n");
- if(send_serial_str(serial, tmpstr) != SR_OK)
- return SR_ERR;
-
- } else{
- devc->trigger_fired=TRUE;
- devc->pretrig_entries=0;
- sr_info("Entering fixed sample mode");
- serial_source_add(sdi->session, serial, G_IO_IN, 200,raspberrypi_pico_receive, (void *) sdi);
- sprintf(tmpstr,"F\n");
- if(send_serial_str(serial,tmpstr) != SR_OK)
- return SR_ERR;
- }
- std_session_send_df_header(sdi);
-
- sr_dbg("dsbstartend %d",devc->dig_sample_bytes);
-
- if(devc->trigger_fired) std_session_send_df_trigger(sdi);
- //Keep this at the end as we don't want to be RX_ACTIVE unless everything is ok
- devc->rxstate=RX_ACTIVE;
-
- return SR_OK;
+ struct sr_serial_dev_inst *serial;
+ struct dev_context *devc;
+ struct sr_channel *ch;
+ struct sr_trigger *trigger;
+ char tmpstr[20];
+ char buf[32];
+ GSList *l;
+ int a_enabled = 0, d_enabled = 0, len;
+ serial = sdi->conn;
+ int i,num_read;
+ devc = sdi->priv;
+ sr_dbg("Enter acq start");
+ sr_dbg("dsbstart %d", devc->dig_sample_bytes);
+ devc->buffer = g_malloc(devc->serial_buffer_size);
+ if (!(devc->buffer)) {
+ sr_err("ERROR:serial buffer malloc fail");
+ return SR_ERR_MALLOC;
+ }
+ //Get device in idle state
+ if (serial_drain(serial) != SR_OK) {
+ sr_err("Initial Drain Failed\n\r");
+ return SR_ERR;
+ }
+ send_serial_char(serial, '*');
+ if (serial_drain(serial) != SR_OK) {
+ sr_err("Second Drain Failed\n\r");
+ return SR_ERR;
+ }
+
+ for (l = sdi->channels; l; l = l->next) {
+ ch = l->data;
+ sr_dbg("c %d enabled %d name %s\n", ch->index, ch->enabled,
+ ch->name);
+
+ if (ch->name[0] == 'A') {
+ devc->a_chan_mask &= ~(1 << ch->index);
+ if (ch->enabled) {
+ devc->a_chan_mask |=
+ (ch->enabled << ch->index);
+ a_enabled++;
+ }
+ }
+ if (ch->name[0] == 'D') {
+ devc->d_chan_mask &= ~(1 << ch->index);
+ if (ch->enabled) {
+ devc->d_chan_mask |=
+ (ch->enabled << ch->index);
+ d_enabled++;
+ }
+ }
+ sr_info("Channel enable masks D 0x%X A 0x%X",
+ devc->d_chan_mask, devc->a_chan_mask);
+ sprintf(tmpstr, "%c%d%d\n", ch->name[0], ch->enabled,
+ ch->index);
+ if (send_serial_w_ack(serial, tmpstr) != SR_OK) {
+ sr_err("ERROR:Channel enable fail");
+ return SR_ERR;
+ } else {
+
+ }
+ }//for all channels
+ //ensure data channels are continuous
+ int invalid = 0;
+ for (i = 0; i < 32; i++) {
+ if ((devc->d_chan_mask >> i) & 1) {
+ if (invalid) {
+ sr_err
+ ("Digital channel mask 0x%X not continous\n\r",
+ devc->d_chan_mask);
+ return SR_ERR;
+ }
+ } else {
+ invalid = 1;
+ }
+ }
+ //recalculate bytes_per_slice based on which analog channels are enabled
+ devc->bytes_per_slice = (a_enabled * devc->a_size);
+
+ for (i = 0; i < devc->num_d_channels; i += 7) {
+ if (((devc->d_chan_mask) >> i) & (0x7F)) {
+ (devc->bytes_per_slice)++;
+ }
+ }
+ if ((a_enabled == 0) && (d_enabled == 0)) {
+ sr_err("ERROR:No channels enabled");
+ return SR_ERR;
+ }
+ sr_dbg("bps %d\n", devc->bytes_per_slice);
+
+ //Apply sample rate limits
+ //While earlier versions forced a lower sample rate, the PICO seems to allow
+ //ADC overclocking, and by not enforcing these limits it may support other devices.
+ //Thus call sr_err to get something into the device logs, but allowing it to progress.
+ if ((a_enabled == 3) && (devc->sample_rate > 160000)) {
+ sr_err
+ ("WARN:3 channel ADC sample rate above 160khz");
+ }
+ if ((a_enabled == 2) && (devc->sample_rate > 250000)) {
+ sr_err
+ ("WARN:2 channel ADC sample rate above 250khz");
+ }
+ if ((a_enabled == 1) && (devc->sample_rate > 500000)) {
+ sr_err
+ ("WARN:1 channel ADC sample rate above 500khz");
+ }
+ //Depending on channel configs, rates below 5ksps are possible
+ //but such a low rate can easily stream and this eliminates a lot
+ //of special cases.
+ if (devc->sample_rate < 5000) {
+ sr_err("Sample rate override to min of 5ksps");
+ devc->sample_rate = 5000;
+ }
+ //While PICO specs a max clock ~120-125Mhz, it does overclock in many cases
+ //so leaving is a warning.
+ if (devc->sample_rate > 120000000) {
+ sr_err("WARN: Sample rate above 120Msps");
+ }
+ //It may take a very large number of samples to notice, but if digital and analog are enabled
+ //and either PIO or ADC are fractional the samples will skew over time.
+ //24Mhz is the max common divisor to the 120Mhz and 48Mhz ADC clock
+ //so force an integer divisor to 24Mhz.
+ if ((a_enabled > 0) && (d_enabled > 0)) {
+ if (24000000ULL % (devc->sample_rate)) {
+ uint32_t commondivint =
+ 24000000ULL / (devc->sample_rate);
+ //Always increment the divisor so that we go down in frequency to avoid max sample rate issues
+ commondivint++;
+ devc->sample_rate = 24000000ULL / commondivint;
+ //Make sure the divisor increement didn't make use go too low.
+ if (devc->sample_rate < 5000) {
+ devc->sample_rate = 50000;
+ }
+ sr_err
+ ("WARN: Forcing common integer divisor sample rate of %llu div %u\n\r",
+ devc->sample_rate, commondivint);
+ }
+
+ }
+ //If we are only digital or only analog print a warning that the
+ //fractional divisors aren't a true PLL fractional feedback loop and thus
+ //could have sample to sample variation.
+ //These warnings of course assume that the device is programmed with the expected ratios
+ //but non PICO implementations, or PICO implementations that use different divisors could avoid.
+ //This generally won't be a problem because most of the sampe_rate pulldown values are integer divisors.
+ if (a_enabled > 0) {
+ if (48000000ULL % (devc->sample_rate * a_enabled)) {
+ sr_warn
+ ("WARN: Non integer ADC divisor of 48Mhz clock for sample rate %llu may cause sample to sample variability.",
+ devc->sample_rate);
+ }
+ }
+ if (d_enabled > 0) {
+ if (120000000ULL % (devc->sample_rate)) {
+ sr_warn
+ ("WARN: Non integer PIO divisor of 120Mhz for sample rate %llu may cause sample to sample variability.",
+ devc->sample_rate);
+ }
+ }
+
+
+ sprintf(tmpstr, "L%" PRIu64 "\n", devc->limit_samples);
+ if (send_serial_w_ack(serial, tmpstr) != SR_OK) {
+ sr_err("Sample limit to device failed");
+ return SR_ERR;
+ }
+ //To support future devices that may allow the analog scale/offset to change, call get_dev_cfg again to get new values
+ if(raspberrypi_pico_get_dev_cfg(sdi) != SR_OK){
+ sr_err("get_dev_cfg failure on start");
+ return SR_ERR;
+ }
+
+ //With all other params set, we use the final sample rate setting as an opportunity for the device
+ //to communicate any errors in configuration.
+ //A single "*" indicates success.
+ //A "*" with subsequent data is success, but allows for the device to print something
+ //to the error console without aborting.
+ //A non "*" in the first character blocks the start
+ sprintf(tmpstr, "R%llu\n", devc->sample_rate);
+ num_read = send_serial_w_resp(serial, tmpstr, buf, 30);
+ buf[num_read]=0;
+ if((num_read>1)&&(buf[0]=='*')){
+ sr_err("Sample rate to device success with resp %s",buf);
+ }
+ else if(!((num_read==1)&&(buf[0]=='*'))){
+ sr_err("Sample rate to device failed");
+ if(num_read>0){
+ buf[num_read]=0;
+ sr_err("sample_rate error string %s",buf);
+ }
+ return SR_ERR;
+ }
+ devc->sent_samples = 0;
+ devc->byte_cnt = 0;
+ devc->bytes_avail = 0;
+ devc->wrptr = 0;
+ devc->cbuf_wrptr = 0;
+ len =
+ serial_read_blocking(serial, devc->buffer,
+ devc->serial_buffer_size,
+ serial_timeout(serial, 4));
+ if (len > 0) {
+ sr_info("Pre-ARM drain had %d characters:", len);
+ devc->buffer[len] = 0;
+ sr_info("%s", devc->buffer);
+ }
+
+ for (i = 0; i < devc->num_a_channels; i++) {
+ devc->a_data_bufs[i] =
+ g_malloc(devc->sample_buf_size * sizeof(float));
+ if (!(devc->a_data_bufs[i])) {
+ sr_err("ERROR:analog buffer malloc fail");
+ return SR_ERR_MALLOC;
+ }
+ }
+ if (devc->num_d_channels > 0) {
+ devc->d_data_buf =
+ g_malloc(devc->sample_buf_size *
+ devc->dig_sample_bytes);
+ if (!(devc->d_data_buf)) {
+ sr_err("ERROR:logic buffer malloc fail");
+ return SR_ERR_MALLOC;
+ }
+ }
+ devc->pretrig_entries =
+ (devc->capture_ratio * devc->limit_samples) / 100;
+ //While the driver supports the passing of trigger info to the device
+ //it has been found that the sw overhead of supporting triggering and
+ //pretrigger buffer entries etc.. ends up slowing the cores down enough
+ //that the effective continous sample rate isn't much higher than that of sending
+ //untriggered samples across USB. Thus this code will remain but likely may
+ //not be used by the device, unless HW based triggers are implemented
+ if ((trigger = sr_session_trigger_get(sdi->session))) {
+ if (g_slist_length(trigger->stages) > 1)
+ return SR_ERR_NA;
+
+ struct sr_trigger_stage *stage;
+ struct sr_trigger_match *match;
+ GSList *l;
+ stage = g_slist_nth_data(trigger->stages, 0);
+ if (!stage)
+ return SR_ERR_ARG;
+ for (l = stage->matches; l; l = l->next) {
+ match = l->data;
+ if (!match->match)
+ continue;
+ if (!match->channel->enabled)
+ continue;
+ int idx = match->channel->index;
+ int8_t val;
+ switch(match->match){
+ case SR_TRIGGER_ZERO:
+ val=0; break;
+ case SR_TRIGGER_ONE:
+ val=1; break;
+ case SR_TRIGGER_RISING:
+ val=2; break;
+ case SR_TRIGGER_FALLING:
+ val=3; break;
+ case SR_TRIGGER_EDGE:
+ val=4; break;
+ default:
+ val=-1;
+ }
+ sr_info("Trigger value idx %d match %d",idx,match->match);
+ //Only set trigger on enabled channels
+ if((val>=0) && ((devc->d_chan_mask>>idx)&1)){
+ sprintf(&tmpstr[0], "t%d%02d\n", val,idx+2);
+ if (send_serial_w_ack(serial, tmpstr) != SR_OK) {
+ sr_err("Trigger cfg to device failed");
+ return SR_ERR;
+ }
+
+ }
+ }
+ sprintf(&tmpstr[0], "p%d\n", devc->pretrig_entries);
+ if (send_serial_w_ack(serial, tmpstr) != SR_OK) {
+ sr_err("Pretrig to device failed");
+ return SR_ERR;
+ }
+ devc->stl =
+ soft_trigger_logic_new(sdi, trigger,
+ devc->pretrig_entries);
+ if (!devc->stl)
+ return SR_ERR_MALLOC;
+ devc->trigger_fired = FALSE;
+ if (devc->pretrig_entries > 0) {
+ sr_dbg("Allocating pretrig buffers size %d",
+ devc->pretrig_entries);
+ for (i = 0; i < devc->num_a_channels; i++) {
+ if ((devc->a_chan_mask >> i) & 1) {
+ devc->a_pretrig_bufs[i] =
+ g_malloc0(sizeof(float) *
+ devc->
+ pretrig_entries);
+ if (!devc->a_pretrig_bufs[i]) {
+ sr_err
+ ("ERROR:Analog pretrigger buffer malloc failure, disabling");
+ devc->trigger_fired = TRUE;
+ }
+ } //if chan_mask
+ } //for num_a_channels
+ } //if pre_trigger
+ sr_info("Entering sw triggered mode");
+ //post the receive before starting the device to ensure we are ready to receive data ASAP
+ serial_source_add(sdi->session, serial, G_IO_IN, 200,
+ raspberrypi_pico_receive, (void *) sdi);
+ sprintf(tmpstr, "C\n");
+ if (send_serial_str(serial, tmpstr) != SR_OK)
+ return SR_ERR;
+
+ } else {
+ devc->trigger_fired = TRUE;
+ devc->pretrig_entries = 0;
+ sr_info("Entering fixed sample mode");
+ serial_source_add(sdi->session, serial, G_IO_IN, 200,
+ raspberrypi_pico_receive, (void *) sdi);
+ sprintf(tmpstr, "F\n");
+ if (send_serial_str(serial, tmpstr) != SR_OK)
+ return SR_ERR;
+ }
+ std_session_send_df_header(sdi);
+
+ sr_dbg("dsbstartend %d", devc->dig_sample_bytes);
+
+ if (devc->trigger_fired)
+ std_session_send_df_trigger(sdi);
+ //Keep this at the end as we don't want to be RX_ACTIVE unless everything is ok
+ devc->rxstate = RX_ACTIVE;
+
+ return SR_OK;
}
+
//This function is called either by the protocol code if we reached all of the samples
//or an error condition, and also by the user clicking stop in pulseview.
//It must always be called for any acquistion that was started to free memory.
static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
- struct dev_context *devc;
- struct sr_serial_dev_inst *serial;
- sr_dbg("****at dev_acquisition_stop");
- int len;
- devc = sdi->priv;
- serial = sdi->conn;
-
- std_session_send_df_end(sdi);
- //If we reached this while still active it is likely because the stop button was pushed
- //in pulseview.
- //That is generally some kind of error condition, so we don't try to check the bytenct
- if(devc->rxstate==RX_ACTIVE){
- sr_err("Reached dev_acquisition_stop in RX_ACTIVE");
- }
- if(devc->rxstate!=RX_IDLE){
- sr_err("Sending plus to stop device stream\n\r");
- send_serial_char(serial,'+');
- }
- //In case we get calls to receive force it to exit
- devc->rxstate=RX_IDLE;
- //drain data from device so that it doesn't confuse subsequent commands
- do{
- len=serial_read_blocking(serial, devc->buffer, devc->serial_buffer_size,100);
- if(len) sr_err("Dropping %d device bytes\n\r",len);
- }while(len>0);
-
-
-
- if(devc->buffer){g_free(devc->buffer);devc->buffer=NULL;}
-
- for(int i=0;i<devc->num_a_channels;i++){
- if(devc->a_data_bufs[i]){
- g_free(devc->a_data_bufs[i]);
- devc->a_data_bufs[i]=NULL;
- }
- }
-
- if(devc->d_data_buf){g_free(devc->d_data_buf);devc->d_data_buf=NULL;}
- for(int i=0;i<devc->num_a_channels;i++){
- if(devc->a_pretrig_bufs[i]) g_free(devc->a_pretrig_bufs[i]);
- devc->a_pretrig_bufs[i]=NULL;
- }
-
- serial= sdi->conn;
- serial_source_remove(sdi->session, serial);
-
- return SR_OK;
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+ sr_dbg("****at dev_acquisition_stop");
+ int len;
+ devc = sdi->priv;
+ serial = sdi->conn;
+
+ std_session_send_df_end(sdi);
+ //If we reached this while still active it is likely because the stop button was pushed
+ //in pulseview.
+ //That is generally some kind of error condition, so we don't try to check the bytenct
+ if (devc->rxstate == RX_ACTIVE) {
+ sr_err("Reached dev_acquisition_stop in RX_ACTIVE");
+ }
+ if (devc->rxstate != RX_IDLE) {
+ sr_err("Sending plus to stop device stream\n\r");
+ send_serial_char(serial, '+');
+ }
+ //In case we get calls to receive force it to exit
+ devc->rxstate = RX_IDLE;
+ //drain data from device so that it doesn't confuse subsequent commands
+ do {
+ len =
+ serial_read_blocking(serial, devc->buffer,
+ devc->serial_buffer_size, 100);
+ if (len)
+ sr_err("Dropping %d device bytes\n\r", len);
+ } while (len > 0);
+ if (devc->buffer) {
+ g_free(devc->buffer);
+ devc->buffer = NULL;
+ }
+ for (int i = 0; i < devc->num_a_channels; i++) {
+ if (devc->a_data_bufs[i]) {
+ g_free(devc->a_data_bufs[i]);
+ devc->a_data_bufs[i] = NULL;
+ }
+ }
+ if (devc->d_data_buf) {
+ g_free(devc->d_data_buf);
+ devc->d_data_buf = NULL;
+ }
+ for (int i = 0; i < devc->num_a_channels; i++) {
+ if (devc->a_pretrig_bufs[i])
+ g_free(devc->a_pretrig_bufs[i]);
+ devc->a_pretrig_bufs[i] = NULL;
+ }
+ serial = sdi->conn;
+ serial_source_remove(sdi->session, serial);
+ return SR_OK;
}
static struct sr_dev_driver raspberrypi_pico_driver_info = {
- .name = "raspberrypi-pico",
- .longname = "RaspberryPI PICO",
- .api_version = 1,
- .init = std_init,
- .cleanup = std_cleanup,
- .scan = scan,
- .dev_list = std_dev_list,
- .dev_clear = std_dev_clear,
- .config_get = config_get,
- .config_set = config_set,
- .config_list = config_list,
- .dev_open = std_serial_dev_open,
- .dev_close = std_serial_dev_close,
- .dev_acquisition_start = dev_acquisition_start,
- .dev_acquisition_stop = dev_acquisition_stop,
- .context = NULL,
+ .name = "raspberrypi-pico",
+ .longname = "RaspberryPI PICO",
+ .api_version = 1,
+ .init = std_init,
+ .cleanup = std_cleanup,
+ .scan = scan,
+ .dev_list = std_dev_list,
+ .dev_clear = std_dev_clear,
+ .config_get = config_get,
+ .config_set = config_set,
+ .config_list = config_list,
+ .dev_open = std_serial_dev_open,
+ .dev_close = std_serial_dev_close,
+ .dev_acquisition_start = dev_acquisition_start,
+ .dev_acquisition_stop = dev_acquisition_stop,
+ .context = NULL,
};
+
SR_REGISTER_DEV_DRIVER(raspberrypi_pico_driver_info);
projects / libsigrok.git / blobdiff