kingst-la2016: add support for streaming mode, works for 16 channels

[libsigrok.git] / src / hardware / kingst-la2016 / api.c

diff --git a/src/hardware/kingst-la2016/api.c b/src/hardware/kingst-la2016/api.c
index d9cb9b19e0ebf6e95dc7f3f346c458a784c60627..3dee6c862ced9019bb67b4108f5003b3f89ba103 100644 (file)
--- a/src/hardware/kingst-la2016/api.c
+++ b/src/hardware/kingst-la2016/api.c
@@ -1,6 +1,7 @@
 /*
  * This file is part of the libsigrok project.
  *
+ * Copyright (C) 2022 Gerhard Sittig <gerhard.sittig@gmx.net>
  * Copyright (C) 2020 Florian Schmidt <schmidt_florian@gmx.de>
  * Copyright (C) 2013 Marcus Comstedt <marcus@mc.pp.se>
  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
@@ -43,7 +44,6 @@ static const uint32_t drvopts[] = {
 };
 
 static const uint32_t devopts[] = {
-       /* TODO: SR_CONF_CONTINUOUS, */
        SR_CONF_CONN | SR_CONF_GET,
        SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
        SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
@@ -53,6 +53,7 @@ static const uint32_t devopts[] = {
 #endif
        SR_CONF_TRIGGER_MATCH | SR_CONF_LIST,
        SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET,
+       SR_CONF_CONTINUOUS | SR_CONF_GET | SR_CONF_SET,
 };
 
 static const uint32_t devopts_cg_logic[] = {
@@ -517,9 +518,10 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
                 * this device.
                 */
                devc->fw_uploaded = 0;
+               devc->usb_pid = pid;
                if (des.iProduct != LA2016_IPRODUCT_INDEX) {
                        sr_info("Uploading MCU firmware to '%s'.", conn_id);
-                       ret = la2016_upload_firmware(sdi, ctx, dev, pid);
+                       ret = la2016_upload_firmware(sdi, ctx, dev, FALSE);
                        if (ret != SR_OK) {
                                sr_err("MCU firmware upload failed.");
                                kingst_la2016_free_sdi(sdi);
@@ -529,6 +531,13 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
                        usb->address = 0xff;
                        renum_devices = g_slist_append(renum_devices, sdi);
                        continue;
+               } else {
+                       ret = la2016_upload_firmware(sdi, NULL, NULL, TRUE);
+                       if (ret != SR_OK) {
+                               sr_err("MCU firmware filename check failed.");
+                               kingst_la2016_free_sdi(sdi);
+                               continue;
+                       }
                }
 
                /*
@@ -618,6 +627,8 @@ static GSList *scan(struct sr_dev_driver *di, GSList *options)
                devc->sw_limits.limit_samples = 0;
                devc->capture_ratio = 50;
                devc->samplerate = devc->model->samplerate;
+               if (!devc->model->memory_bits)
+                       devc->continuous = TRUE;
                devc->threshold_voltage_idx = LOGIC_THRESHOLD_IDX_DFLT;
                if  (ARRAY_SIZE(devc->pwm_setting) >= 1) {
                        devc->pwm_setting[0].enabled = FALSE;
@@ -671,6 +682,8 @@ static int dev_close(struct sr_dev_inst *sdi)
        if (!usb->devhdl)
                return SR_ERR_BUG;
 
+       la2016_release_resources(sdi);
+
        if (WITH_DEINIT_IN_CLOSE)
                la2016_deinit_hardware(sdi);
 
@@ -811,6 +824,9 @@ static int config_get(uint32_t key, GVariant **data,
                *data = std_gvar_tuple_double(voltage, voltage);
                break;
 #endif /* WITH_THRESHOLD_DEVCFG */
+       case SR_CONF_CONTINUOUS:
+               *data = g_variant_new_boolean(devc->continuous);
+               break;
        default:
                return SR_ERR_NA;
        }
@@ -827,6 +843,7 @@ static int config_set(uint32_t key, GVariant *data,
        struct pwm_setting *pwm;
        double value_f;
        int idx;
+       gboolean on;
 
        devc = sdi->priv;
 
@@ -906,6 +923,12 @@ static int config_set(uint32_t key, GVariant *data,
                devc->threshold_voltage_idx = idx;
                break;
 #endif /* WITH_THRESHOLD_DEVCFG */
+       case SR_CONF_CONTINUOUS:
+               on = g_variant_get_boolean(data);
+               if (!devc->model->memory_bits && !on)
+                       return SR_ERR_ARG;
+               devc->continuous = on;
+               break;
        default:
                return SR_ERR_NA;
        }
@@ -974,8 +997,10 @@ static int config_list(uint32_t key, GVariant **data,
                        *data = std_gvar_samplerates(ARRAY_AND_SIZE(rates_500mhz));
                else if (devc->model->samplerate == SR_MHZ(200))
                        *data = std_gvar_samplerates(ARRAY_AND_SIZE(rates_200mhz));
-               else
+               else if (devc->model->samplerate == SR_MHZ(100))
                        *data = std_gvar_samplerates(ARRAY_AND_SIZE(rates_100mhz));
+               else
+                       return SR_ERR_BUG;
                break;
        case SR_CONF_LIMIT_SAMPLES:
                *data = std_gvar_tuple_u64(0, LA2016_NUM_SAMPLES_MAX);
@@ -1001,6 +1026,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
        struct drv_context *drvc;
        struct sr_context *ctx;
        struct dev_context *devc;
+       size_t unitsize;
        double voltage;
        int ret;
 
@@ -1010,12 +1036,21 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
        devc = sdi->priv;
 
        if (!devc->feed_queue) {
+               if (devc->model->channel_count == 32)
+                       unitsize = sizeof(uint32_t);
+               else if (devc->model->channel_count == 16)
+                       unitsize = sizeof(uint16_t);
+               else
+                       return SR_ERR_ARG;
                devc->feed_queue = feed_queue_logic_alloc(sdi,
-                       LA2016_CONVBUFFER_SIZE, sizeof(uint16_t));
+                       LA2016_CONVBUFFER_SIZE, unitsize);
                if (!devc->feed_queue) {
                        sr_err("Cannot allocate buffer for session feed.");
                        return SR_ERR_MALLOC;
                }
+               devc->packets_per_chunk = TRANSFER_PACKET_LENGTH;
+               devc->packets_per_chunk--;
+               devc->packets_per_chunk /= unitsize + sizeof(uint8_t);
        }
 
        sr_sw_limits_acquisition_start(&devc->sw_limits);