kingst-la2016: use common support for sw limits and session feed

[libsigrok.git] / src / hardware / kingst-la2016 / protocol.h

diff --git a/src/hardware/kingst-la2016/protocol.h b/src/hardware/kingst-la2016/protocol.h
index 0d61fa71fbef5a63055138eae271bb81e29528c6..41367bdfca9eb5b63be7d91c0995c093517ab955 100644 (file)
--- a/src/hardware/kingst-la2016/protocol.h
+++ b/src/hardware/kingst-la2016/protocol.h
@@ -69,8 +69,23 @@
 #define LA2016_THR_VOLTAGE_MIN 0.40
 #define LA2016_THR_VOLTAGE_MAX 4.00
 
-#define LA2016_NUM_SAMPLES_MIN 256
-#define LA2016_NUM_SAMPLES_MAX (10UL * 1000 * 1000 * 1000)
+#define LA2016_NUM_SAMPLES_MIN (UINT64_C(256))
+#define LA2016_NUM_SAMPLES_MAX (UINT64_C(10 * 1000 * 1000 * 1000))
+
+/* Maximum device capabilities. May differ between models. */
+#define MAX_SAMPLE_RATE_LA2016 SR_MHZ(200)
+#define MAX_SAMPLE_RATE_LA1016 SR_MHZ(100)
+#define MIN_SAMPLE_RATE_LA2016 SR_KHZ(10)
+#define MAX_PWM_FREQ           SR_MHZ(20)
+#define PWM_CLOCK              SR_MHZ(200)     /* 200MHz for both LA2016 and LA1016 */
+
+/* TODO
+ * What is the origin and motivation of that 128Mi literal? What is its
+ * unit? How does it relate to a device's hardware capabilities? How to
+ * map the 1GiB of RAM of an LA2016 (at 16 channels) to the 128Mi value?
+ * It cannot be sample count. Is it memory size in bytes perhaps?
+ */
+#define LA2016_PRE_MEM_LIMIT_BASE      (128 * 1024 * 1024)
 
 #define LA2016_NUM_PWMCH_MAX   2
 
@@ -108,13 +123,12 @@ struct dev_context {
 
        /* User specified parameters. */
        struct pwm_setting pwm_setting[LA2016_NUM_PWMCH_MAX];
-       unsigned int threshold_voltage_idx;
+       size_t threshold_voltage_idx;
        float threshold_voltage;
        uint64_t max_samplerate;
        uint64_t cur_samplerate;
-       uint64_t limit_samples;
+       struct sr_sw_limits sw_limits;
        uint64_t capture_ratio;
-       uint16_t cur_channels;
 
        /* Internal acquisition and download state. */
        gboolean trigger_involved;
@@ -128,8 +142,7 @@ struct dev_context {
        uint64_t total_samples;
        uint32_t read_pos;
 
-       size_t convbuffer_size;
-       uint8_t *convbuffer;
+       struct feed_queue_logic *feed_queue;
        struct libusb_transfer *transfer;
 };