asix-sigma: add support for external clock

[libsigrok.git] / src / hardware / asix-sigma / protocol.h

diff --git a/src/hardware/asix-sigma/protocol.h b/src/hardware/asix-sigma/protocol.h
index 1311c935d10b32f2b4e23e826c686124e97b3f82..406f9e4d140817bba31fd196ddf2cf9cf8b46e3e 100644 (file)
--- a/src/hardware/asix-sigma/protocol.h
+++ b/src/hardware/asix-sigma/protocol.h
@@ -129,6 +129,11 @@ enum sigma_read_register {
 
 #define BIT_MASK(l)    ((1UL << (l)) - 1)
 
+#define CLKSEL_CLKSEL8         (1 << 0)
+#define CLKSEL_PINMASK         BIT_MASK(4)
+#define CLKSEL_RISING          (1 << 4)
+#define CLKSEL_FALLING         (1 << 5)
+
 #define TRGSEL_SELINC_MASK     BIT_MASK(2)
 #define TRGSEL_SELINC_SHIFT    0
 #define TRGSEL_SELRES_MASK     BIT_MASK(2)
@@ -341,6 +346,12 @@ enum sigma_firmware_idx {
        SIGMA_FW_FREQ,
 };
 
+enum ext_clock_edge_t {
+       SIGMA_CLOCK_EDGE_RISING,
+       SIGMA_CLOCK_EDGE_FALLING,
+       SIGMA_CLOCK_EDGE_EITHER,
+};
+
 struct submit_buffer;
 
 struct dev_context {
@@ -354,7 +365,12 @@ struct dev_context {
                struct ftdi_context ctx;
                gboolean is_open, must_close;
        } ftdi;
-       uint64_t samplerate;
+       struct {
+               uint64_t samplerate;
+               gboolean use_ext_clock;
+               size_t clock_pin;
+               enum ext_clock_edge_t clock_edge;
+       } clock;
        struct sr_sw_limits cfg_limits; /* Configured limits (user specified). */
        struct sr_sw_limits acq_limits; /* Acquisition limits (internal use). */
        struct sr_sw_limits feed_limits; /* Datafeed limits (internal use). */