sysclk-lwla: Various cosmetic improvements

[libsigrok.git] / src / hardware / sysclk-lwla / lwla.h

diff --git a/src/hardware/sysclk-lwla/lwla.h b/src/hardware/sysclk-lwla/lwla.h
index 7bd5886415519524131774f8b30dd9cba81ca79f..7d95f9c1f447e33f932a18fa3dda36a95c9d8357 100644 (file)
--- a/src/hardware/sysclk-lwla/lwla.h
+++ b/src/hardware/sysclk-lwla/lwla.h
@@ -48,7 +48,8 @@ struct sr_usb_dev_inst;
 #define LWLA_WORD_3(val) GUINT16_TO_LE(((val) >> 32) & 0xFFFF)
 
 /* Maximum number of 16-bit words sent at a time during acquisition.
- * Used for allocating the libusb transfer buffer.
+ * Used for allocating the libusb transfer buffer. Keep this even so that
+ * subsequent members are always 32-bit aligned.
  */
 #define MAX_ACQ_SEND_LEN16     64 /* 43 for capture setup plus stuffing */
 
@@ -68,14 +69,6 @@ struct sr_usb_dev_inst;
  */
 #define PACKET_SIZE            (5000 * 4 * 5)
 
-/** USB device end points.
- */
-enum usb_endpoint {
-       EP_COMMAND = 2,
-       EP_CONFIG  = 4,
-       EP_REPLY   = 6 | LIBUSB_ENDPOINT_IN
-};
-
 /** LWLA protocol command ID codes.
  */
 enum command_id {
@@ -90,7 +83,7 @@ enum command_id {
 /** LWLA capture state flags.
  * The bit positions are the same as in the LWLA1016 control register.
  */
-enum {
+enum status_flag {
        STATUS_CAPTURING = 1 << 2,
        STATUS_TRIGGERED = 1 << 5,
        STATUS_MEM_AVAIL = 1 << 6,
@@ -124,13 +117,13 @@ struct acquisition_state {
        struct libusb_transfer *xfer_in;        /* USB in transfer record */
        struct libusb_transfer *xfer_out;       /* USB out transfer record */
 
-       size_t mem_addr_fill;   /* capture memory fill level */
-       size_t mem_addr_done;   /* position up to which data was received */
-       size_t mem_addr_next;   /* start address for next async read */
-       size_t mem_addr_stop;   /* end of memory range to be read */
-       size_t in_index;        /* position in read transfer buffer */
-       size_t out_index;       /* position in logic packet buffer */
-       enum rle_state rle;     /* RLE decoding state */
+       unsigned int mem_addr_fill;     /* capture memory fill level */
+       unsigned int mem_addr_done;     /* next address to be processed */
+       unsigned int mem_addr_next;     /* start address for next async read */
+       unsigned int mem_addr_stop;     /* end of memory range to be read */
+       unsigned int in_index;          /* position in read transfer buffer */
+       unsigned int out_index;         /* position in logic packet buffer */
+       enum rle_state rle;             /* RLE decoding state */
 
        gboolean rle_enabled;   /* capturing in timing-state mode */
        gboolean clock_boost;   /* switch to faster clock during capture */