#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
+#ifdef _WIN32
+#include <windows.h>
+#else
#include <termios.h>
+#endif
#include <string.h>
#include <sys/time.h>
#include <inttypes.h>
+#ifdef _WIN32
+/* TODO */
+#else
+#include <arpa/inet.h>
+#endif
#include <glib.h>
-#include "sigrok.h"
-
-#define NUM_PROBES 32
-#define NUM_TRIGGER_STAGES 4
-#define TRIGGER_TYPES "01"
-#define SERIAL_SPEED B115200
-/* TODO: SERIAL_ bits, parity, stop bit */
-#define CLOCK_RATE 100000000
-
-
-/* command opcodes */
-#define CMD_RESET 0x00
-#define CMD_ID 0x02
-#define CMD_SET_FLAGS 0x82
-#define CMD_SET_DIVIDER 0x80
-#define CMD_RUN 0x01
-#define CMD_CAPTURE_SIZE 0x81
-#define CMD_SET_TRIGGER_MASK_0 0xc0
-#define CMD_SET_TRIGGER_MASK_1 0xc4
-#define CMD_SET_TRIGGER_MASK_2 0xc8
-#define CMD_SET_TRIGGER_MASK_3 0xcc
-#define CMD_SET_TRIGGER_VALUE_0 0xc1
-#define CMD_SET_TRIGGER_VALUE_1 0xc5
-#define CMD_SET_TRIGGER_VALUE_2 0xc9
-#define CMD_SET_TRIGGER_VALUE_3 0xcd
-#define CMD_SET_TRIGGER_CONFIG_0 0xc2
-#define CMD_SET_TRIGGER_CONFIG_1 0xc6
-#define CMD_SET_TRIGGER_CONFIG_2 0xca
-#define CMD_SET_TRIGGER_CONFIG_3 0xce
-
-/* bitmasks for CMD_FLAGS */
-#define FLAG_DEMUX 0x01
-#define FLAG_FILTER 0x02
-#define FLAG_CHANNELGROUP_1 0x04
-#define FLAG_CHANNELGROUP_2 0x08
-#define FLAG_CHANNELGROUP_3 0x10
-#define FLAG_CHANNELGROUP_4 0x20
-#define FLAG_CLOCK_EXTERNAL 0x40
-#define FLAG_CLOCK_INVERTED 0x80
-#define FLAG_RLE 0x0100
-
+#include <sigrok.h>
+#include <sigrok-internal.h>
+
+#ifdef _WIN32
+#define O_NONBLOCK FIONBIO
+#endif
+
+#define NUM_PROBES 32
+#define NUM_TRIGGER_STAGES 4
+#define TRIGGER_TYPES "01"
+#define SERIAL_SPEED B115200
+#define CLOCK_RATE MHZ(100)
+#define MIN_NUM_SAMPLES 4
+
+/* Command opcodes */
+#define CMD_RESET 0x00
+#define CMD_ID 0x02
+#define CMD_SET_FLAGS 0x82
+#define CMD_SET_DIVIDER 0x80
+#define CMD_RUN 0x01
+#define CMD_CAPTURE_SIZE 0x81
+#define CMD_SET_TRIGGER_MASK_0 0xc0
+#define CMD_SET_TRIGGER_MASK_1 0xc4
+#define CMD_SET_TRIGGER_MASK_2 0xc8
+#define CMD_SET_TRIGGER_MASK_3 0xcc
+#define CMD_SET_TRIGGER_VALUE_0 0xc1
+#define CMD_SET_TRIGGER_VALUE_1 0xc5
+#define CMD_SET_TRIGGER_VALUE_2 0xc9
+#define CMD_SET_TRIGGER_VALUE_3 0xcd
+#define CMD_SET_TRIGGER_CONFIG_0 0xc2
+#define CMD_SET_TRIGGER_CONFIG_1 0xc6
+#define CMD_SET_TRIGGER_CONFIG_2 0xca
+#define CMD_SET_TRIGGER_CONFIG_3 0xce
+
+/* Bitmasks for CMD_FLAGS */
+#define FLAG_DEMUX 0x01
+#define FLAG_FILTER 0x02
+#define FLAG_CHANNELGROUP_1 0x04
+#define FLAG_CHANNELGROUP_2 0x08
+#define FLAG_CHANNELGROUP_3 0x10
+#define FLAG_CHANNELGROUP_4 0x20
+#define FLAG_CLOCK_EXTERNAL 0x40
+#define FLAG_CLOCK_INVERTED 0x80
+#define FLAG_RLE 0x0100
static int capabilities[] = {
- HWCAP_LOGIC_ANALYZER,
- HWCAP_SAMPLERATE,
- HWCAP_CAPTURE_RATIO,
- HWCAP_LIMIT_SAMPLES,
- 0
+ SR_HWCAP_LOGIC_ANALYZER,
+ SR_HWCAP_SAMPLERATE,
+ SR_HWCAP_CAPTURE_RATIO,
+ SR_HWCAP_LIMIT_SAMPLES,
+ 0,
};
-static struct samplerates samplerates = {
- 1,
+static struct sr_samplerates samplerates = {
+ 10,
MHZ(200),
1,
- 0
+ 0,
};
-/* list of struct serial_device_instance */
+/* List of struct sr_serial_device_instance */
static GSList *device_instances = NULL;
-/* current state of the flag register */
-uint32_t flag_reg = 0;
+/* Current state of the flag register */
+static uint32_t flag_reg = 0;
static uint64_t cur_samplerate = 0;
static uint64_t limit_samples = 0;
-/* pre/post trigger capture ratio, in percentage. 0 means no pre-trigger data. */
-int capture_ratio = 0;
-static uint32_t probe_mask = 0, trigger_mask[4] = {0}, trigger_value[4] = {0};
-
-
-
-int send_shortcommand(int fd, uint8_t command)
+/*
+ * Pre/post trigger capture ratio, in percentage.
+ * 0 means no pre-trigger data.
+ */
+static int capture_ratio = 0;
+static int trigger_at = -1;
+static uint32_t probe_mask = 0xffffffff;
+static uint32_t trigger_mask[4] = { 0, 0, 0, 0 };
+static uint32_t trigger_value[4] = { 0, 0, 0, 0 };
+static int num_stages = 0;
+
+static int send_shortcommand(int fd, uint8_t command)
{
char buf[1];
- g_message("ols: sending cmd 0x%.2x", command);
+ g_debug("ols: sending cmd 0x%.2x", command);
buf[0] = command;
- if(write(fd, buf, 1) != 1)
- return SIGROK_ERR;
+ if (serial_write(fd, buf, 1) != 1)
+ return SR_ERR;
- return SIGROK_OK;
+ return SR_OK;
}
-
-int send_longcommand(int fd, uint8_t command, uint32_t data)
+static int send_longcommand(int fd, uint8_t command, uint32_t data)
{
char buf[5];
- g_message("ols: sending cmd 0x%.2x data 0x%.8x", command, data);
+ g_debug("ols: sending cmd 0x%.2x data 0x%.8x", command, data);
buf[0] = command;
- buf[1] = data & 0xff;
- buf[2] = data & 0xff00 >> 8;
- buf[3] = data & 0xff0000 >> 16;
- buf[4] = data & 0xff000000 >> 24;
- if(write(fd, buf, 5) != 5)
- return SIGROK_ERR;
-
- return SIGROK_OK;
+ buf[1] = (data & 0xff000000) >> 24;
+ buf[2] = (data & 0xff0000) >> 16;
+ buf[3] = (data & 0xff00) >> 8;
+ buf[4] = data & 0xff;
+ if (serial_write(fd, buf, 5) != 5)
+ return SR_ERR;
+
+ return SR_OK;
}
static int configure_probes(GSList *probes)
{
- struct probe *probe;
+ struct sr_probe *probe;
GSList *l;
- int probe_bit, changrp_mask, stage, i;
+ int probe_bit, stage, i;
char *tc;
probe_mask = 0;
- for(i = 0; i < NUM_TRIGGER_STAGES; i++)
- {
+ for (i = 0; i < NUM_TRIGGER_STAGES; i++) {
trigger_mask[i] = 0;
trigger_value[i] = 0;
}
- for(l = probes; l; l = l->next)
- {
- probe = (struct probe *) l->data;
+ num_stages = 0;
+ for (l = probes; l; l = l->next) {
+ probe = (struct sr_probe *)l->data;
+ if (!probe->enabled)
+ continue;
+
+ /*
+ * Set up the probe mask for later configuration into the
+ * flag register.
+ */
probe_bit = 1 << (probe->index - 1);
probe_mask |= probe_bit;
- if(probe->trigger)
- {
- stage = 0;
- for(tc = probe->trigger; *tc; tc++)
- {
- trigger_mask[stage] |= probe_bit;
- if(*tc == '1')
- trigger_value[stage] |= probe_bit;
- stage++;
- if(stage > 3)
- {
- /* only supporting parallel mode, with up to 4 stages */
- return SIGROK_ERR;
- }
- }
+
+ if (!probe->trigger)
+ continue;
+
+ /* Configure trigger mask and value. */
+ stage = 0;
+ for (tc = probe->trigger; tc && *tc; tc++) {
+ trigger_mask[stage] |= probe_bit;
+ if (*tc == '1')
+ trigger_value[stage] |= probe_bit;
+ stage++;
+ if (stage > 3)
+ /*
+ * TODO: Only supporting parallel mode, with
+ * up to 4 stages.
+ */
+ return SR_ERR;
}
+ if (stage > num_stages)
+ num_stages = stage;
}
- /* enable/disable channel groups in the flag register according
- * to the probe mask we just made. The register stores them backwards,
- * hence shift right from 1000.
- */
- changrp_mask = 0;
- for(i = 0; i < 4; i++)
- {
- if(probe_mask & (0xff << i))
- changrp_mask |= 8 >> i;
- }
- /* but the flag register wants them here */
- flag_reg |= changrp_mask << 2;
+ return SR_OK;
+}
+
+static uint32_t reverse16(uint32_t in)
+{
+ uint32_t out;
- return SIGROK_OK;
+ out = (in & 0xff) << 8;
+ out |= (in & 0xff00) >> 8;
+ out |= (in & 0xff0000) << 8;
+ out |= (in & 0xff000000) >> 8;
+
+ return out;
}
+static uint32_t reverse32(uint32_t in)
+{
+ uint32_t out;
+
+ out = (in & 0xff) << 24;
+ out |= (in & 0xff00) << 8;
+ out |= (in & 0xff0000) >> 8;
+ out |= (in & 0xff000000) >> 24;
+
+ return out;
+}
static int hw_init(char *deviceinfo)
{
- struct sigrok_device_instance *sdi;
+ struct sr_device_instance *sdi;
GSList *ports, *l;
GPollFD *fds;
- struct termios term, *prev_termios;
- int devcnt, final_devcnt, num_ports, fd, i;
- char buf[8], **device_names;
+ int devcnt, final_devcnt, num_ports, fd, ret, i;
+ char buf[8], **device_names, **serial_params;
- if(deviceinfo)
- ports = g_slist_append(NULL, g_strdup(deviceinfo));
+ if (deviceinfo)
+ ports = g_slist_append(NULL, strdup(deviceinfo));
else
- /* no specific device given, so scan all serial ports */
+ /* No specific device given, so scan all serial ports. */
ports = list_serial_ports();
num_ports = g_slist_length(ports);
- fds = g_malloc0(num_ports * sizeof(GPollFD));
- device_names = g_malloc(num_ports * (sizeof(char *)));
- prev_termios = g_malloc(num_ports * sizeof(struct termios));
+ fds = calloc(1, num_ports * sizeof(GPollFD));
+ device_names = malloc(num_ports * sizeof(char *));
+ serial_params = malloc(num_ports * sizeof(char *));
devcnt = 0;
- for(l = ports; l; l = l->next) {
- /* The discovery procedure is like this: first send the Reset command (0x00) 5 times,
- * since the device could be anywhere in a 5-byte command. Then send the ID command
- * (0x02). If the device responds with 4 bytes ("OLS1" or "SLA1"), we have a match.
- * Since it may take the device a while to respond at 115Kb/s, we do all the sending
- * first, then wait for all of them to respond with g_poll().
+ for (l = ports; l; l = l->next) {
+ /* The discovery procedure is like this: first send the Reset
+ * command (0x00) 5 times, since the device could be anywhere
+ * in a 5-byte command. Then send the ID command (0x02).
+ * If the device responds with 4 bytes ("OLS1" or "SLA1"), we
+ * have a match.
+ *
+ * Since it may take the device a while to respond at 115Kb/s,
+ * we do all the sending first, then wait for all of them to
+ * respond with g_poll().
*/
- fd = open(l->data, O_RDWR | O_NONBLOCK);
- if(fd != -1) {
- tcgetattr(fd, &prev_termios[devcnt]);
- tcgetattr(fd, &term);
- cfsetispeed(&term, SERIAL_SPEED);
- tcsetattr(fd, TCSADRAIN, &term);
- memset(buf, CMD_RESET, 5);
- buf[5] = CMD_ID;
- if(write(fd, buf, 6) == 6) {
- fds[devcnt].fd = fd;
- fds[devcnt].events = G_IO_IN;
- device_names[devcnt] = l->data;
- devcnt++;
- g_message("probed device %s", (char *) l->data);
+ g_message("ols: probing %s...", (char *)l->data);
+ fd = serial_open(l->data, O_RDWR | O_NONBLOCK);
+ if (fd != -1) {
+ serial_params[devcnt] = serial_backup_params(fd);
+ serial_set_params(fd, 115200, 8, 0, 1, 2);
+ ret = SR_OK;
+ for (i = 0; i < 5; i++) {
+ if ((ret = send_shortcommand(fd,
+ CMD_RESET)) != SR_OK) {
+ /* Serial port is not writable. */
+ break;
+ }
}
- else {
- /* restore port settings. of course, we've crapped all over the port. */
- tcsetattr(fd, TCSADRAIN, &prev_termios[devcnt]);
- g_free(l->data);
+ if (ret != SR_OK) {
+ serial_restore_params(fd,
+ serial_params[devcnt]);
+ serial_close(fd);
+ continue;
}
+ send_shortcommand(fd, CMD_ID);
+ fds[devcnt].fd = fd;
+ fds[devcnt].events = G_IO_IN;
+ device_names[devcnt] = strdup(l->data);
+ devcnt++;
}
+ free(l->data);
}
- /* 2ms should do it, that's enough time for 28 bytes to go over the bus */
- usleep(2000);
+ /* 2ms isn't enough for reliable transfer with pl2303, let's try 10 */
+ usleep(10000);
final_devcnt = 0;
g_poll(fds, devcnt, 1);
- for(i = 0; i < devcnt; i++) {
- if(fds[i].revents == G_IO_IN) {
- if(read(fds[i].fd, buf, 4) == 4) {
- if(!strncmp(buf, "1SLO", 4) || !strncmp(buf, "1ALS", 4)) {
- if(!strncmp(buf, "1SLO", 4))
- sdi = sigrok_device_instance_new(final_devcnt, ST_INACTIVE,
- "Openbench", "Logic Sniffer", "v1.0");
+ for (i = 0; i < devcnt; i++) {
+ if (fds[i].revents == G_IO_IN) {
+ if (serial_read(fds[i].fd, buf, 4) == 4) {
+ if (!strncmp(buf, "1SLO", 4)
+ || !strncmp(buf, "1ALS", 4)) {
+ if (!strncmp(buf, "1SLO", 4))
+ sdi = sr_device_instance_new
+ (final_devcnt, SR_ST_INACTIVE,
+ "Openbench",
+ "Logic Sniffer", "v1.0");
else
- sdi = sigrok_device_instance_new(final_devcnt, ST_INACTIVE,
- "Sump", "Logic Analyzer", "v1.0");
- sdi->serial = serial_device_instance_new(device_names[i], -1);
- device_instances = g_slist_append(device_instances, sdi);
+ sdi = sr_device_instance_new
+ (final_devcnt, SR_ST_INACTIVE,
+ "Openbench", "Logic Sniffer",
+ "v1.0");
+ sdi->serial = sr_serial_device_instance_new
+ (device_names[i], -1);
+ device_instances =
+ g_slist_append(device_instances, sdi);
final_devcnt++;
+ serial_close(fds[i].fd);
fds[i].fd = 0;
}
}
+ free(device_names[i]);
}
- if(fds[i].fd != 0)
- tcsetattr(fds[i].fd, TCSADRAIN, &prev_termios[i]);
- close(fds[i].fd);
+ if (fds[i].fd != 0) {
+ serial_restore_params(fds[i].fd, serial_params[i]);
+ serial_close(fds[i].fd);
+ }
+ free(serial_params[i]);
}
- g_free(fds);
- g_free(device_names);
- g_free(prev_termios);
+ free(fds);
+ free(device_names);
+ free(serial_params);
g_slist_free(ports);
+ cur_samplerate = KHZ(200);
+
return final_devcnt;
}
-
static int hw_opendev(int device_index)
{
- struct sigrok_device_instance *sdi;
+ struct sr_device_instance *sdi;
- if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
- return SIGROK_ERR;
+ if (!(sdi = sr_get_device_instance(device_instances, device_index)))
+ return SR_ERR;
- sdi->serial->fd = open(sdi->serial->port, O_RDWR);
- if(sdi->serial->fd == -1)
- return SIGROK_ERR;
+ sdi->serial->fd = serial_open(sdi->serial->port, O_RDWR);
+ if (sdi->serial->fd == -1)
+ return SR_ERR;
- sdi->status = ST_ACTIVE;
+ sdi->status = SR_ST_ACTIVE;
- return SIGROK_OK;
+ return SR_OK;
}
-
static void hw_closedev(int device_index)
{
- struct sigrok_device_instance *sdi;
+ struct sr_device_instance *sdi;
- if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
+ if (!(sdi = sr_get_device_instance(device_instances, device_index)))
return;
- if(sdi->serial->fd != -1) {
- close(sdi->serial->fd);
+ if (sdi->serial->fd != -1) {
+ serial_close(sdi->serial->fd);
sdi->serial->fd = -1;
- sdi->status = ST_INACTIVE;
+ sdi->status = SR_ST_INACTIVE;
}
-
}
-
static void hw_cleanup(void)
{
GSList *l;
- struct sigrok_device_instance *sdi;
+ struct sr_device_instance *sdi;
- /* properly close all devices */
- for(l = device_instances; l; l = l->next) {
+ /* Properly close all devices. */
+ for (l = device_instances; l; l = l->next) {
sdi = l->data;
- if(sdi->serial->fd != -1)
- close(sdi->serial->fd);
- sigrok_device_instance_free(sdi);
+ if (sdi->serial->fd != -1)
+ serial_close(sdi->serial->fd);
+ sr_device_instance_free(sdi);
}
g_slist_free(device_instances);
device_instances = NULL;
-
}
-
static void *hw_get_device_info(int device_index, int device_info_id)
{
- struct sigrok_device_instance *sdi;
+ struct sr_device_instance *sdi;
void *info;
- if( !(sdi = get_sigrok_device_instance(device_instances, device_index)) )
+ if (!(sdi = sr_get_device_instance(device_instances, device_index)))
return NULL;
info = NULL;
- switch(device_info_id)
- {
- case DI_INSTANCE:
+ switch (device_info_id) {
+ case SR_DI_INSTANCE:
info = sdi;
break;
- case DI_NUM_PROBES:
+ case SR_DI_NUM_PROBES:
info = GINT_TO_POINTER(NUM_PROBES);
break;
- case DI_SAMPLERATES:
+ case SR_DI_SAMPLERATES:
info = &samplerates;
break;
- case DI_TRIGGER_TYPES:
- info = (char *) TRIGGER_TYPES;
+ case SR_DI_TRIGGER_TYPES:
+ info = (char *)TRIGGER_TYPES;
break;
- case DI_CUR_SAMPLERATE:
+ case SR_DI_CUR_SAMPLERATE:
info = &cur_samplerate;
break;
}
return info;
}
-
static int hw_get_status(int device_index)
{
- struct sigrok_device_instance *sdi;
+ struct sr_device_instance *sdi;
- if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
- return ST_NOT_FOUND;
+ if (!(sdi = sr_get_device_instance(device_instances, device_index)))
+ return SR_ST_NOT_FOUND;
return sdi->status;
}
-
static int *hw_get_capabilities(void)
{
-
return capabilities;
}
-
-static int set_configuration_samplerate(struct sigrok_device_instance *sdi, uint64_t samplerate)
+static int set_configuration_samplerate(struct sr_device_instance *sdi,
+ uint64_t samplerate)
{
uint32_t divider;
- if(samplerate < samplerates.low || samplerate > samplerates.high)
- return SIGROK_ERR_SAMPLERATE;
+ if (samplerate < samplerates.low || samplerate > samplerates.high)
+ return SR_ERR_SAMPLERATE;
- if(samplerate > CLOCK_RATE) {
+ if (samplerate > CLOCK_RATE) {
flag_reg |= FLAG_DEMUX;
- divider = (uint8_t) (CLOCK_RATE * 2 / samplerate) - 1;
+ divider = (CLOCK_RATE * 2 / samplerate) - 1;
+ } else {
+ flag_reg &= ~FLAG_DEMUX;
+ divider = (CLOCK_RATE / samplerate) - 1;
}
- else {
- flag_reg &= FLAG_DEMUX;
- divider = (uint8_t) (CLOCK_RATE / samplerate) - 1;
- }
- divider <<= 8;
- g_message("setting samplerate to %"PRIu64" Hz (divider %u, demux %s)", samplerate, divider,
- flag_reg & FLAG_DEMUX ? "on" : "off");
- if(send_longcommand(sdi->serial->fd, CMD_SET_DIVIDER, divider) != SIGROK_OK)
- return SIGROK_ERR;
+ g_message("ols: setting samplerate to %" PRIu64 " Hz (divider %u, demux %s)",
+ samplerate, divider, flag_reg & FLAG_DEMUX ? "on" : "off");
+
+ if (send_longcommand(sdi->serial->fd, CMD_SET_DIVIDER, reverse32(divider)) != SR_OK)
+ return SR_ERR;
cur_samplerate = samplerate;
- return SIGROK_OK;
+ return SR_OK;
}
-
static int hw_set_configuration(int device_index, int capability, void *value)
{
- struct sigrok_device_instance *sdi;
+ struct sr_device_instance *sdi;
int ret;
uint64_t *tmp_u64;
- if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
- return SIGROK_ERR;
+ if (!(sdi = sr_get_device_instance(device_instances, device_index)))
+ return SR_ERR;
- if(sdi->status != ST_ACTIVE)
- return SIGROK_ERR;
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR;
- if(capability == HWCAP_SAMPLERATE) {
+ switch (capability) {
+ case SR_HWCAP_SAMPLERATE:
tmp_u64 = value;
ret = set_configuration_samplerate(sdi, *tmp_u64);
- }
- else if(capability == HWCAP_PROBECONFIG)
- ret = configure_probes( (GSList *) value);
- else if(capability == HWCAP_LIMIT_SAMPLES) {
- limit_samples = strtoull(value, NULL, 10);
- ret = SIGROK_OK;
- }
- else if(capability == HWCAP_CAPTURE_RATIO) {
- capture_ratio = strtol(value, NULL, 10);
- if(capture_ratio < 0 || capture_ratio > 100) {
+ break;
+ case SR_HWCAP_PROBECONFIG:
+ ret = configure_probes((GSList *) value);
+ break;
+ case SR_HWCAP_LIMIT_SAMPLES:
+ tmp_u64 = value;
+ if (*tmp_u64 < MIN_NUM_SAMPLES)
+ return SR_ERR;
+ limit_samples = *tmp_u64;
+ g_message("ols: sample limit %" PRIu64, limit_samples);
+ ret = SR_OK;
+ break;
+ case SR_HWCAP_CAPTURE_RATIO:
+ tmp_u64 = value;
+ capture_ratio = *tmp_u64;
+ if (capture_ratio < 0 || capture_ratio > 100) {
capture_ratio = 0;
- ret = SIGROK_ERR;
- }
- else
- ret = SIGROK_OK;
+ ret = SR_ERR;
+ } else
+ ret = SR_OK;
+ break;
+ default:
+ ret = SR_ERR;
}
- else
- ret = SIGROK_ERR;
return ret;
}
-
static int receive_data(int fd, int revents, void *user_data)
{
- static int num_transfers = 0;
+ static unsigned int num_transfers = 0;
static int num_bytes = 0;
- static char last_sample[4] = {0xff};
- static unsigned char sample[4];
- int count, buflen, i;
- struct datafeed_packet packet;
+ static char last_sample[4] = { 0xff, 0xff, 0xff, 0xff };
+ static unsigned char sample[4] = { 0, 0, 0, 0 };
+ static unsigned char tmp_sample[4];
+ static unsigned char *raw_sample_buf = NULL;
+ int count, buflen, num_channels, offset, i, j;
+ struct sr_datafeed_packet packet;
unsigned char byte, *buffer;
- if(num_transfers++ == 0) {
- /* first time round, means the device started sending data, and will not
- * stop until done. if it stops sending for longer than it takes to send
- * a byte, that means it's finished. we'll double that to 30ms to be sure...
+ if (num_transfers++ == 0) {
+ /*
+ * First time round, means the device started sending data,
+ * and will not stop until done. If it stops sending for
+ * longer than it takes to send a byte, that means it's
+ * finished. We'll double that to 30ms to be sure...
*/
- source_remove(fd);
- source_add(fd, G_IO_IN, 30, receive_data, user_data);
+ sr_source_remove(fd);
+ sr_source_add(fd, G_IO_IN, 30, receive_data, user_data);
+ raw_sample_buf = malloc(limit_samples * 4);
+ /* fill with 1010... for debugging */
+ memset(raw_sample_buf, 0x82, limit_samples * 4);
+ }
+
+ num_channels = 0;
+ for (i = 0x20; i > 0x02; i /= 2) {
+ if ((flag_reg & i) == 0)
+ num_channels++;
}
- /* TODO: / 4 depends on # of channels used */
- if(revents == G_IO_IN && num_transfers / 4 <= limit_samples){
- if(read(fd, &byte, 1) != 1)
+ if (revents == G_IO_IN
+ && num_transfers / num_channels <= limit_samples) {
+ if (serial_read(fd, &byte, 1) != 1)
return FALSE;
sample[num_bytes++] = byte;
- if(num_bytes == 4) {
- g_message("got sample 0x%.2x%.2x%.2x%.2x", sample[3], sample[2], sample[1], sample[0]);
- /* got a full sample */
- if(flag_reg & FLAG_RLE) {
- /* in RLE mode -1 should never come in as a sample, because
- * bit 31 is the "count" flag */
- /* TODO: endianness may be wrong here, could be sample[3] */
- if(sample[0] & 0x80 && !(last_sample[0] & 0x80)) {
- count = (int) (*sample) & 0x7fffffff;
+ g_debug("ols: received byte 0x%.2x", byte);
+ if (num_bytes == num_channels) {
+ g_debug("ols: received sample 0x%.*x", num_bytes * 2, (int) *sample);
+ /* Got a full sample. */
+ if (flag_reg & FLAG_RLE) {
+ /*
+ * In RLE mode -1 should never come in as a
+ * sample, because bit 31 is the "count" flag.
+ * TODO: Endianness may be wrong here, could be
+ * sample[3].
+ */
+ if (sample[0] & 0x80
+ && !(last_sample[0] & 0x80)) {
+ count = (int)(*sample) & 0x7fffffff;
buffer = g_malloc(count);
buflen = 0;
- for(i = 0; i < count; i++)
- {
- memcpy(buffer + buflen , last_sample, 4);
+ for (i = 0; i < count; i++) {
+ memcpy(buffer + buflen, last_sample, 4);
buflen += 4;
}
- }
- else {
- /* just a single sample, next sample will probably be a count
- * referring to this -- but this one is still a part of the stream
+ } else {
+ /*
+ * Just a single sample, next sample
+ * will probably be a count referring
+ * to this -- but this one is still a
+ * part of the stream.
*/
buffer = sample;
buflen = 4;
}
- }
- else {
- /* no compression */
+ } else {
+ /* No compression. */
buffer = sample;
buflen = 4;
}
- /* send it all to the session bus */
- packet.type = DF_LOGIC32;
- packet.length = buflen;
- packet.payload = buffer;
- session_bus(user_data, &packet);
- if(buffer == sample)
- memcpy(last_sample, buffer, 4);
+ if (num_channels < 4) {
+ /*
+ * Some channel groups may have been turned
+ * off, to speed up transfer between the
+ * hardware and the PC. Expand that here before
+ * submitting it over the session bus --
+ * whatever is listening on the bus will be
+ * expecting a full 32-bit sample, based on
+ * the number of probes.
+ */
+ j = 0;
+ memset(tmp_sample, 0, 4);
+ for (i = 0; i < 4; i++) {
+ if (((flag_reg >> 2) & (1 << i)) == 0) {
+ /*
+ * This channel group was
+ * enabled, copy from received
+ * sample.
+ */
+ tmp_sample[i] = sample[j++];
+ }
+ }
+ memcpy(sample, tmp_sample, 4);
+ g_debug("ols: full sample 0x%.8x", (int) *sample);
+ }
+
+ /* the OLS sends its sample buffer backwards.
+ * store it in reverse order here, so we can dump
+ * this on the session bus later.
+ */
+ offset = (limit_samples - num_transfers / num_channels) * 4;
+ memcpy(raw_sample_buf + offset, sample, 4);
+
+ if (buffer == sample)
+ memcpy(last_sample, buffer, num_channels);
else
g_free(buffer);
+ memset(sample, 0, 4);
num_bytes = 0;
}
- }
- else {
- /* this is the main loop telling us a timeout was reached -- we're done */
- tcflush(fd, TCIOFLUSH);
- close(fd);
- packet.type = DF_END;
+ } else {
+ /*
+ * This is the main loop telling us a timeout was reached, or
+ * we've acquired all the samples we asked for -- we're done.
+ * Send the (properly-ordered) buffer to the frontend.
+ */
+ if (trigger_at != -1) {
+ /* a trigger was set up, so we need to tell the frontend
+ * about it.
+ */
+ if (trigger_at > 0) {
+ /* there are pre-trigger samples, send those first */
+ packet.type = SR_DF_LOGIC;
+ packet.length = trigger_at * 4;
+ packet.unitsize = 4;
+ packet.payload = raw_sample_buf;
+ sr_session_bus(user_data, &packet);
+ }
+
+ packet.type = SR_DF_TRIGGER;
+ packet.length = 0;
+ sr_session_bus(user_data, &packet);
+
+ packet.type = SR_DF_LOGIC;
+ packet.length = (limit_samples * 4) - (trigger_at * 4);
+ packet.unitsize = 4;
+ packet.payload = raw_sample_buf + trigger_at * 4;
+ sr_session_bus(user_data, &packet);
+ } else {
+ packet.type = SR_DF_LOGIC;
+ packet.length = limit_samples * 4;
+ packet.unitsize = 4;
+ packet.payload = raw_sample_buf;
+ sr_session_bus(user_data, &packet);
+ }
+ free(raw_sample_buf);
+
+ serial_flush(fd);
+ serial_close(fd);
+ packet.type = SR_DF_END;
packet.length = 0;
- session_bus(user_data, &packet);
+ sr_session_bus(user_data, &packet);
}
return TRUE;
}
-
static int hw_start_acquisition(int device_index, gpointer session_device_id)
{
- struct datafeed_packet *packet;
- struct datafeed_header *header;
- struct sigrok_device_instance *sdi;
+ int i;
+ struct sr_datafeed_packet *packet;
+ struct sr_datafeed_header *header;
+ struct sr_device_instance *sdi;
+ uint32_t trigger_config[4];
uint32_t data;
-
- if(!(sdi = get_sigrok_device_instance(device_instances, device_index)))
- return SIGROK_ERR;
-
- if(sdi->status != ST_ACTIVE)
- return SIGROK_ERR;
-
- /* reset again */
- if(send_longcommand(sdi->serial->fd, CMD_RESET, 0) != SIGROK_OK)
- return SIGROK_ERR;
-
- /* send flag register */
- data = flag_reg << 24;
- if(send_longcommand(sdi->serial->fd, CMD_SET_FLAGS, data) != SIGROK_OK)
- return SIGROK_ERR;
-
- /* send sample limit and pre/post-trigger capture ratio */
- data = limit_samples / 4 << 16;
- if(capture_ratio)
- data |= (limit_samples - (limit_samples / 100 * capture_ratio)) / 4;
- data = 0x00190019;
- if(send_longcommand(sdi->serial->fd, CMD_CAPTURE_SIZE, data) != SIGROK_OK)
- return SIGROK_ERR;
-
- /* trigger masks */
- if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0, trigger_mask[0]) != SIGROK_OK)
- return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_1, trigger_mask[1]) != SIGROK_OK)
-// return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_2, trigger_mask[2]) != SIGROK_OK)
-// return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_3, trigger_mask[3]) != SIGROK_OK)
-// return SIGROK_ERR;
-
- if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0, trigger_value[0]) != SIGROK_OK)
- return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_1, trigger_value[1]) != SIGROK_OK)
-// return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_2, trigger_value[2]) != SIGROK_OK)
-// return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_3, trigger_value[3]) != SIGROK_OK)
-// return SIGROK_ERR;
-
- /* trigger configuration */
- /* TODO: the start flag should only be on the last used stage I think... */
- if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0, 0x00000008) != SIGROK_OK)
- return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_1, 0x00000000) != SIGROK_OK)
-// return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_2, 0x00000000) != SIGROK_OK)
-// return SIGROK_ERR;
-// if(send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_3, 0x00000000) != SIGROK_OK)
-// return SIGROK_ERR;
+ uint16_t readcount, delaycount;
+ uint8_t changrp_mask;
+
+ if (!(sdi = sr_get_device_instance(device_instances, device_index)))
+ return SR_ERR;
+
+ if (sdi->status != SR_ST_ACTIVE)
+ return SR_ERR;
+
+ readcount = limit_samples / 4;
+
+ memset(trigger_config, 0, 16);
+ trigger_config[num_stages-1] |= 0x08;
+ if (trigger_mask[0]) {
+ delaycount = readcount * (1 - capture_ratio / 100.0);
+ trigger_at = (readcount - delaycount) * 4 - num_stages;
+
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0,
+ reverse32(trigger_mask[0])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0,
+ reverse32(trigger_value[0])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0,
+ trigger_config[0]) != SR_OK)
+ return SR_ERR;
+
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_1,
+ reverse32(trigger_mask[1])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_1,
+ reverse32(trigger_value[1])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_1,
+ trigger_config[1]) != SR_OK)
+ return SR_ERR;
+
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_2,
+ reverse32(trigger_mask[2])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_2,
+ reverse32(trigger_value[2])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_2,
+ trigger_config[2]) != SR_OK)
+ return SR_ERR;
+
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_3,
+ reverse32(trigger_mask[3])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_3,
+ reverse32(trigger_value[3])) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_3,
+ trigger_config[3]) != SR_OK)
+ return SR_ERR;
+ } else {
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0,
+ trigger_mask[0]) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0,
+ trigger_value[0]) != SR_OK)
+ return SR_ERR;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0,
+ 0x00000008) != SR_OK)
+ return SR_ERR;
+ delaycount = readcount;
+ }
set_configuration_samplerate(sdi, cur_samplerate);
- /* start acquisition on the device */
- if(send_shortcommand(sdi->serial->fd, CMD_RUN) != SIGROK_OK)
- return SIGROK_ERR;
+ /* Send sample limit and pre/post-trigger capture ratio. */
+ data = ((readcount - 1) & 0xffff) << 16;
+ data |= (delaycount - 1) & 0xffff;
+ if (send_longcommand(sdi->serial->fd, CMD_CAPTURE_SIZE, reverse16(data)) != SR_OK)
+ return SR_ERR;
- source_add(sdi->serial->fd, G_IO_IN, -1, receive_data, session_device_id);
+ /*
+ * Enable/disable channel groups in the flag register according to the
+ * probe mask.
+ */
+ changrp_mask = 0;
+ for (i = 0; i < 4; i++) {
+ if (probe_mask & (0xff << (i * 8)))
+ changrp_mask |= (1 << i);
+ }
- /* send header packet to the session bus */
- packet = g_malloc(sizeof(struct datafeed_packet));
- header = g_malloc(sizeof(struct datafeed_header));
- if(!packet || !header)
- return SIGROK_ERR;
- packet->type = DF_HEADER;
- packet->length = sizeof(struct datafeed_header);
- packet->payload = (unsigned char *) header;
+ /* The flag register wants them here, and 1 means "disable channel". */
+ flag_reg |= ~(changrp_mask << 2) & 0x3c;
+ flag_reg |= FLAG_FILTER;
+ data = flag_reg << 24;
+ if (send_longcommand(sdi->serial->fd, CMD_SET_FLAGS, data) != SR_OK)
+ return SR_ERR;
+
+ /* Start acquisition on the device. */
+ if (send_shortcommand(sdi->serial->fd, CMD_RUN) != SR_OK)
+ return SR_ERR;
+
+ sr_source_add(sdi->serial->fd, G_IO_IN, -1, receive_data,
+ session_device_id);
+
+ /* Send header packet to the session bus. */
+ packet = g_malloc(sizeof(struct sr_datafeed_packet));
+ header = g_malloc(sizeof(struct sr_datafeed_header));
+ if (!packet || !header)
+ return SR_ERR;
+ packet->type = SR_DF_HEADER;
+ packet->length = sizeof(struct sr_datafeed_header);
+ packet->payload = (unsigned char *)header;
header->feed_version = 1;
gettimeofday(&header->starttime, NULL);
header->samplerate = cur_samplerate;
- header->protocol_id = PROTO_RAW;
- header->num_probes = NUM_PROBES;
- session_bus(session_device_id, packet);
+ header->protocol_id = SR_PROTO_RAW;
+ header->num_logic_probes = NUM_PROBES;
+ header->num_analog_probes = 0;
+ sr_session_bus(session_device_id, packet);
g_free(header);
g_free(packet);
- return SIGROK_OK;
+ return SR_OK;
}
-
static void hw_stop_acquisition(int device_index, gpointer session_device_id)
{
- struct datafeed_packet packet;
+ struct sr_datafeed_packet packet;
- packet.type = DF_END;
- packet.length = 0;
- session_bus(session_device_id, &packet);
+ /* Avoid compiler warnings. */
+ device_index = device_index;
+ packet.type = SR_DF_END;
+ packet.length = 0;
+ sr_session_bus(session_device_id, &packet);
}
-
-
-struct device_plugin ols_plugin_info = {
- "sump",
+struct sr_device_plugin ols_plugin_info = {
+ "ols",
+ "Openbench Logic Sniffer",
1,
hw_init,
hw_cleanup,
-
hw_opendev,
hw_closedev,
hw_get_device_info,
hw_get_capabilities,
hw_set_configuration,
hw_start_acquisition,
- hw_stop_acquisition
+ hw_stop_acquisition,
};
-
projects / libsigrok.git / blobdiff