#include <sigrok.h>
#include "config.h"
-#define BUFSIZE 4096
-
-#define NUM_PROBES 8
-#define NUM_TRIGGER_STAGES 4
-#define TRIGGER_TYPES "01"
-
-/* Software trigger implementation: positive values indicate trigger stage. */
-#define TRIGGER_FIRED -1
-
-#define USB_MODEL_NAME "demodevice"
-#define USB_VENDOR_NAME "demovendor"
-#define USB_MODEL_VERSION "1.0"
+#define NUM_PROBES 8
+#define DEMONAME "Demo device"
+/* size of chunks to send through the session bus */
+#define BUFSIZE 4096
+
+enum {
+ GENMODE_DEFAULT,
+ GENMODE_RANDOM,
+ GENMODE_INC,
+};
-#define GENMODE_RANDOM 1
-#define GENMODE_INC 2
+struct databag {
+ int pipe_fds[2];
+ uint8_t sample_generator;
+ uint8_t thread_running;
+ uint64_t samples_counter;
+ int device_index;
+ int loop_sleep;
+ gpointer session_device_id;
+};
static GThread *my_thread;
static int thread_running;
static int capabilities[] = {
HWCAP_LOGIC_ANALYZER,
- HWCAP_SAMPLERATE,
+ HWCAP_PATTERN_MODE,
HWCAP_LIMIT_SAMPLES,
+ HWCAP_CONTINUOUS
};
-/* Random selection of samplerates this "device" shall support. */
-static uint64_t supported_samplerates[] = {
- KHZ(100),
- KHZ(500),
- MHZ(1),
- MHZ(2),
- MHZ(12),
- MHZ(24),
- 0,
-};
-
-static struct samplerates samplerates = {
- KHZ(100),
- MHZ(24),
- 0,
- supported_samplerates,
+static const char *patternmodes[] = {
+ "random",
+ "incremental",
+ NULL,
};
-struct databag {
- int pipe_fds[2];
- uint8_t sample_generator;
- uint8_t thread_running;
- uint64_t samples_counter;
- int device_index;
- int loop_sleep;
- gpointer session_device_id;
+static uint8_t genmode_default[] = {
+ 0x4c, 0x92, 0x92, 0x92, 0x64, 0x00, 0x00, 0x00,
+ 0x82, 0xfe, 0xfe, 0x82, 0x00, 0x00, 0x00, 0x00,
+ 0x7c, 0x82, 0x82, 0x92, 0x74, 0x00, 0x00, 0x00,
+ 0xfe, 0x12, 0x12, 0x32, 0xcc, 0x00, 0x00, 0x00,
+ 0x7c, 0x82, 0x82, 0x82, 0x7c, 0x00, 0x00, 0x00,
+ 0xfe, 0x10, 0x28, 0x44, 0x82, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xbe, 0xbe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
/* List of struct sigrok_device_instance, maintained by opendev()/closedev(). */
static GSList *device_instances = NULL;
-
-/* TODO: All of these should go in a device-specific struct. */
static uint64_t cur_samplerate = 0;
-static uint64_t limit_samples = 0;
-// static uint8_t probe_mask = 0;
-// static uint8_t trigger_mask[NUM_TRIGGER_STAGES] = { 0 };
-// static uint8_t trigger_value[NUM_TRIGGER_STAGES] = { 0 };
-// static uint8_t trigger_buffer[NUM_TRIGGER_STAGES] = { 0 };
-
-// static int trigger_stage = TRIGGER_FIRED;
+static uint64_t limit_samples = -1;
+static int default_genmode = GENMODE_DEFAULT;
-static int hw_set_configuration(int device_index, int capability, void *value);
static void hw_stop_acquisition(int device_index, gpointer session_device_id);
static int hw_init(char *deviceinfo)
{
- /* Avoid compiler warning. */
- deviceinfo = deviceinfo;
-
struct sigrok_device_instance *sdi;
- sdi = sigrok_device_instance_new(0, ST_ACTIVE,
- USB_VENDOR_NAME, USB_MODEL_NAME, USB_MODEL_VERSION);
+ /* Avoid compiler warnings. */
+ deviceinfo = deviceinfo;
+ sdi = sigrok_device_instance_new(0, ST_ACTIVE, DEMONAME, NULL, NULL);
if (!sdi)
return 0;
+
device_instances = g_slist_append(device_instances, sdi);
return 1;
static int hw_opendev(int device_index)
{
- /* Avoid compiler warning. */
+ /* Avoid compiler warnings. */
device_index = device_index;
/* Nothing needed so far. */
static void hw_closedev(int device_index)
{
- /* Avoid compiler warning. */
+ /* Avoid compiler warnings. */
device_index = device_index;
/* Nothing needed so far. */
case DI_NUM_PROBES:
info = GINT_TO_POINTER(NUM_PROBES);
break;
- case DI_SAMPLERATES:
- info = &samplerates;
- break;
- case DI_TRIGGER_TYPES:
- info = TRIGGER_TYPES;
- break;
case DI_CUR_SAMPLERATE:
info = &cur_samplerate;
break;
+ case DI_PATTERNMODES:
+ info = &patternmodes;
+ break;
}
return info;
static int hw_get_status(int device_index)
{
- /* Avoid compiler warning. */
+ /* Avoid compiler warnings. */
device_index = device_index;
- return 0; /* FIXME */
+ return ST_ACTIVE;
}
static int *hw_get_capabilities(void)
{
int ret;
uint64_t *tmp_u64;
+ char *stropt;
- /* Avoid compiler warning. */
+ /* Avoid compiler warnings. */
device_index = device_index;
- if (capability == HWCAP_SAMPLERATE) {
- cur_samplerate = *(uint64_t *) value;
- ret = SIGROK_OK;
- } else if (capability == HWCAP_PROBECONFIG) {
- // ret = configure_probes((GSList *) value); FIXME
+ if (capability == HWCAP_PROBECONFIG) {
+ /* Nothing to do. */
ret = SIGROK_OK;
} else if (capability == HWCAP_LIMIT_SAMPLES) {
tmp_u64 = value;
limit_samples = *tmp_u64;
ret = SIGROK_OK;
+ } else if (capability == HWCAP_PATTERN_MODE) {
+ stropt = value;
+ if (!strcmp(stropt, "random")) {
+ default_genmode = GENMODE_RANDOM;
+ ret = SIGROK_OK;
+ } else if (!strcmp(stropt, "incremental")) {
+ default_genmode = GENMODE_INC;
+ ret = SIGROK_OK;
+ } else {
+ ret = SIGROK_ERR;
+ }
} else {
ret = SIGROK_ERR;
}
static void samples_generator(uint8_t *buf, uint64_t size, void *data)
{
struct databag *mydata = data;
- uint64_t i;
+ uint64_t p, i;
memset(buf, 0, size);
switch (mydata->sample_generator) {
+ case GENMODE_DEFAULT:
+ p = 0;
+ for (i = 0; i < size; i++) {
+ *(buf + i) = ~(genmode_default[p] >> 1);
+ if (++p == 64)
+ p = 0;
+ }
+ break;
case GENMODE_RANDOM: /* Random */
for (i = 0; i < size; i++)
*(buf + i) = (uint8_t)(rand() & 0xff);
uint64_t nb_to_send = 0;
while (thread_running) {
- nb_to_send = limit_samples - mydata->samples_counter;
+ if (limit_samples)
+ nb_to_send = limit_samples - mydata->samples_counter;
+ else
+ nb_to_send = BUFSIZE; /* Continuous mode */
if (nb_to_send == 0) {
close(mydata->pipe_fds[1]);
static int receive_data(int fd, int revents, void *user_data)
{
struct datafeed_packet packet;
- /* uint16_t samples[1000]; */
char c[BUFSIZE];
uint64_t z;
{
struct datafeed_packet *packet;
struct datafeed_header *header;
- unsigned char *buf;
struct databag *mydata;
mydata = malloc(sizeof(struct databag));
if (!mydata)
return SIGROK_ERR_MALLOC;
- mydata->sample_generator = GENMODE_RANDOM;
+ mydata->sample_generator = default_genmode;
mydata->session_device_id = session_device_id;
mydata->device_index = device_index;
mydata->samples_counter = 0;
mydata->loop_sleep = 100000;
- if (pipe(mydata->pipe_fds)) {
- fprintf(stderr, "Pipe failed.\n");
- return SIGROK_ERR_MALLOC; /* FIXME */
+ if (pipe(mydata->pipe_fds))
+ return SIGROK_ERR;
- }
source_add(mydata->pipe_fds[0], G_IO_IN | G_IO_ERR, 40, receive_data,
session_device_id);
thread_running = 1;
my_thread =
g_thread_create((GThreadFunc)thread_func, mydata, TRUE, NULL);
- if (!my_thread) {
- fprintf(stderr, "demo: Thread creation failed.\n");
- return SIGROK_ERR_MALLOC; /* FIXME */
- }
+ if (!my_thread)
+ return SIGROK_ERR;
packet = malloc(sizeof(struct datafeed_packet));
header = malloc(sizeof(struct datafeed_header));
- buf = malloc(2048);
- if (!packet || !header || !buf)
+ if (!packet || !header)
return SIGROK_ERR_MALLOC;
- /* FIXME */
- memset(buf, 0x55, 2048);
-
packet->type = DF_HEADER;
packet->length = sizeof(struct datafeed_header);
packet->payload = (unsigned char *)header;
return SIGROK_OK;
}
-/* This stops acquisition on ALL devices, ignoring device_index. */
static void hw_stop_acquisition(int device_index, gpointer session_device_id)
{
struct datafeed_packet packet;
- /* QUICK HACK */
+ /* Avoid compiler warnings. */
device_index = device_index;
/* Send last packet. */