]> sigrok.org Git - libsigrok.git/blobdiff - hardware/demo/demo.c
Add and use std_session_send_df_header().
[libsigrok.git] / hardware / demo / demo.c
index 0c4c211e9f085d2f1aadc4bf124d4709759a89a1..8a4bc9a0593c7b15ae5cfdfb44e3c2306716104b 100644 (file)
@@ -84,20 +84,20 @@ struct dev_context {
 };
 
 static const int hwcaps[] = {
-       SR_HWCAP_LOGIC_ANALYZER,
-       SR_HWCAP_DEMO_DEV,
-       SR_HWCAP_SAMPLERATE,
-       SR_HWCAP_PATTERN_MODE,
-       SR_HWCAP_LIMIT_SAMPLES,
-       SR_HWCAP_LIMIT_MSEC,
-       SR_HWCAP_CONTINUOUS,
+       SR_CONF_LOGIC_ANALYZER,
+       SR_CONF_DEMO_DEV,
+       SR_CONF_SAMPLERATE,
+       SR_CONF_PATTERN_MODE,
+       SR_CONF_LIMIT_SAMPLES,
+       SR_CONF_LIMIT_MSEC,
+       SR_CONF_CONTINUOUS,
 };
 
 static const struct sr_samplerates samplerates = {
-       SR_HZ(1),
-       SR_GHZ(1),
-       SR_HZ(1),
-       NULL,
+       .low  = SR_HZ(1),
+       .high = SR_GHZ(1),
+       .step = SR_HZ(1),
+       .list = NULL,
 };
 
 static const char *pattern_strings[] = {
@@ -111,14 +111,7 @@ static const char *pattern_strings[] = {
 
 /* We name the probes 0-7 on our demo driver. */
 static const char *probe_names[NUM_PROBES + 1] = {
-       "0",
-       "1",
-       "2",
-       "3",
-       "4",
-       "5",
-       "6",
-       "7",
+       "0", "1", "2", "3", "4", "5", "6", "7",
        NULL,
 };
 
@@ -138,7 +131,7 @@ static uint8_t pattern_sigrok[] = {
 
 /* List of struct sr_dev_inst, maintained by dev_open()/dev_close(). */
 SR_PRIV struct sr_dev_driver demo_driver_info;
-static struct sr_dev_driver *ddi = &demo_driver_info;
+static struct sr_dev_driver *di = &demo_driver_info;
 static uint64_t cur_samplerate = SR_KHZ(200);
 static uint64_t limit_samples = 0;
 static uint64_t limit_msec = 0;
@@ -153,17 +146,9 @@ static int clear_instances(void)
        return SR_OK;
 }
 
-static int hw_init(void)
+static int hw_init(struct sr_context *sr_ctx)
 {
-       struct drv_context *drvc;
-
-       if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
-               sr_err("Driver context malloc failed.");
-               return SR_ERR_MALLOC;
-       }
-       ddi->priv = drvc;
-
-       return SR_OK;
+       return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN);
 }
 
 static GSList *hw_scan(GSList *options)
@@ -176,7 +161,8 @@ static GSList *hw_scan(GSList *options)
 
        (void)options;
 
-       drvc = ddi->priv;
+       drvc = di->priv;
+
        devices = NULL;
 
        sdi = sr_dev_inst_new(0, SR_ST_ACTIVE, DEMONAME, NULL, NULL);
@@ -184,7 +170,7 @@ static GSList *hw_scan(GSList *options)
                sr_err("%s: sr_dev_inst_new failed", __func__);
                return 0;
        }
-       sdi->driver = ddi;
+       sdi->driver = di;
 
        for (i = 0; probe_names[i]; i++) {
                if (!(probe = sr_probe_new(i, SR_PROBE_LOGIC, TRUE,
@@ -201,11 +187,7 @@ static GSList *hw_scan(GSList *options)
 
 static GSList *hw_dev_list(void)
 {
-       struct drv_context *drvc;
-
-       drvc = ddi->priv;
-
-       return drvc->instances;
+       return ((struct drv_context *)(di->priv))->instances;
 }
 
 static int hw_dev_open(struct sr_dev_inst *sdi)
@@ -232,30 +214,14 @@ static int hw_cleanup(void)
        return SR_OK;
 }
 
-static int hw_info_get(int info_id, const void **data,
-       const struct sr_dev_inst *sdi)
+static int config_get(int id, const void **data, const struct sr_dev_inst *sdi)
 {
        (void)sdi;
 
-       switch (info_id) {
-       case SR_DI_HWCAPS:
-               *data = hwcaps;
-               break;
-       case SR_DI_NUM_PROBES:
-               *data = GINT_TO_POINTER(NUM_PROBES);
-               break;
-       case SR_DI_PROBE_NAMES:
-               *data = probe_names;
-               break;
-       case SR_DI_SAMPLERATES:
-               *data = &samplerates;
-               break;
-       case SR_DI_CUR_SAMPLERATE:
+       switch (id) {
+       case SR_CONF_SAMPLERATE:
                *data = &cur_samplerate;
                break;
-       case SR_DI_PATTERNS:
-               *data = &pattern_strings;
-               break;
        default:
                return SR_ERR_ARG;
        }
@@ -263,32 +229,31 @@ static int hw_info_get(int info_id, const void **data,
        return SR_OK;
 }
 
-static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
-               const void *value)
+static int config_set(int id, const void *value, const struct sr_dev_inst *sdi)
 {
        int ret;
        const char *stropt;
 
        (void)sdi;
 
-       if (hwcap == SR_HWCAP_SAMPLERATE) {
+       if (id == SR_CONF_SAMPLERATE) {
                cur_samplerate = *(const uint64_t *)value;
                sr_dbg("%s: setting samplerate to %" PRIu64, __func__,
                       cur_samplerate);
                ret = SR_OK;
-       } else if (hwcap == SR_HWCAP_LIMIT_SAMPLES) {
+       } else if (id == SR_CONF_LIMIT_SAMPLES) {
                limit_msec = 0;
                limit_samples = *(const uint64_t *)value;
                sr_dbg("%s: setting limit_samples to %" PRIu64, __func__,
                       limit_samples);
                ret = SR_OK;
-       } else if (hwcap == SR_HWCAP_LIMIT_MSEC) {
+       } else if (id == SR_CONF_LIMIT_MSEC) {
                limit_msec = *(const uint64_t *)value;
                limit_samples = 0;
                sr_dbg("%s: setting limit_msec to %" PRIu64, __func__,
                       limit_msec);
                ret = SR_OK;
-       } else if (hwcap == SR_HWCAP_PATTERN_MODE) {
+       } else if (id == SR_CONF_PATTERN_MODE) {
                stropt = value;
                ret = SR_OK;
                if (!strcmp(stropt, "sigrok")) {
@@ -312,6 +277,28 @@ static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
        return ret;
 }
 
+static int config_list(int key, const void **data, const struct sr_dev_inst *sdi)
+{
+
+       (void)sdi;
+
+       switch (key) {
+       case SR_CONF_DEVICE_OPTIONS:
+               *data = hwcaps;
+               break;
+       case SR_CONF_SAMPLERATE:
+               *data = &samplerates;
+               break;
+       case SR_CONF_PATTERN_MODE:
+               *data = &pattern_strings;
+               break;
+       default:
+               return SR_ERR_ARG;
+       }
+
+       return SR_OK;
+}
+
 static void samples_generator(uint8_t *buf, uint64_t size,
                              struct dev_context *devc)
 {
@@ -388,11 +375,8 @@ static int receive_data(int fd, int revents, void *cb_data)
                devc->samples_counter += sending_now;
        }
 
-
-       if (devc->samples_counter >= limit_samples) {
-               sr_spew("We sent a total of %" PRIu64 " samples.",
-                       devc->samples_counter);
-               /* Make sure we don't receive more packets. */
+       if (limit_samples && devc->samples_counter >= limit_samples) {
+               sr_info("Requested number of samples reached.");
                hw_dev_acquisition_stop(NULL, cb_data);
                return TRUE;
        }
@@ -403,15 +387,10 @@ static int receive_data(int fd, int revents, void *cb_data)
 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
                void *cb_data)
 {
-       struct sr_datafeed_packet *packet;
-       struct sr_datafeed_header *header;
-       struct sr_datafeed_meta_logic meta;
        struct dev_context *devc;
 
        (void)sdi;
 
-       sr_dbg("Starting acquisition.");
-
        /* TODO: 'devc' is never g_free()'d? */
        if (!(devc = g_try_malloc(sizeof(struct dev_context)))) {
                sr_err("%s: devc malloc failed", __func__);
@@ -451,35 +430,12 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
        sr_session_source_add_channel(devc->channels[0], G_IO_IN | G_IO_ERR,
                    40, receive_data, devc);
 
-       if (!(packet = g_try_malloc(sizeof(struct sr_datafeed_packet)))) {
-               sr_err("%s: packet malloc failed", __func__);
-               return SR_ERR_MALLOC;
-       }
-
-       if (!(header = g_try_malloc(sizeof(struct sr_datafeed_header)))) {
-               sr_err("%s: header malloc failed", __func__);
-               return SR_ERR_MALLOC;
-       }
-
-       packet->type = SR_DF_HEADER;
-       packet->payload = header;
-       header->feed_version = 1;
-       gettimeofday(&header->starttime, NULL);
-       sr_session_send(devc->session_dev_id, packet);
-
-       /* Send metadata about the SR_DF_LOGIC packets to come. */
-       packet->type = SR_DF_META_LOGIC;
-       packet->payload = &meta;
-       meta.samplerate = cur_samplerate;
-       meta.num_probes = NUM_PROBES;
-       sr_session_send(devc->session_dev_id, packet);
+       /* Send header packet to the session bus. */
+       std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
 
        /* We use this timestamp to decide how many more samples to send. */
        devc->starttime = g_get_monotonic_time();
 
-       g_free(header);
-       g_free(packet);
-
        return SR_OK;
 }
 
@@ -513,10 +469,11 @@ SR_PRIV struct sr_dev_driver demo_driver_info = {
        .scan = hw_scan,
        .dev_list = hw_dev_list,
        .dev_clear = clear_instances,
+       .config_get = config_get,
+       .config_set = config_set,
+       .config_list = config_list,
        .dev_open = hw_dev_open,
        .dev_close = hw_dev_close,
-       .info_get = hw_info_get,
-       .dev_config_set = hw_dev_config_set,
        .dev_acquisition_start = hw_dev_acquisition_start,
        .dev_acquisition_stop = hw_dev_acquisition_stop,
        .priv = NULL,