X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=libsigrok-internal.h;h=54b23e32913b45f7d3807f3644ea6f2b2ddce01e;hb=0ab702601d6b855f162340da9a19b1885ee16253;hp=aa8283f1c070c5eca237e46334692caca589f329;hpb=2a854d71392d2d22c59ec975ca11eb72ab81061d;p=libsigrok.git

diff --git a/libsigrok-internal.h b/libsigrok-internal.h
index aa8283f1..54b23e32 100644
--- a/libsigrok-internal.h
+++ b/libsigrok-internal.h
@@ -50,6 +50,13 @@
 #define ARRAY_AND_SIZE(a) (a), ARRAY_SIZE(a)
 #endif
 
+/**
+ * Read a 8 bits integer out of memory.
+ * @param x a pointer to the input memory
+ * @return the corresponding integer
+ */
+#define R8(x)     ((unsigned)((const uint8_t*)(x))[0])
+
 /**
  * Read a 16 bits big endian integer out of memory.
  * @param x a pointer to the input memory
@@ -86,6 +93,49 @@
                   ((unsigned)((const uint8_t*)(x))[1] <<  8) |  \
                    (unsigned)((const uint8_t*)(x))[0])
 
+/**
+ * Write a 8 bits integer to memory.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define W8(p, x)    do { ((uint8_t*)(p))[0] = (uint8_t) (x);      } while(0)
+
+/**
+ * Write a 16 bits integer to memory stored as big endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WB16(p, x)  do { ((uint8_t*)(p))[1] = (uint8_t) (x);      \
+                         ((uint8_t*)(p))[0] = (uint8_t)((x)>>8);  } while(0)
+
+/**
+ * Write a 16 bits integer to memory stored as little endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WL16(p, x)  do { ((uint8_t*)(p))[0] = (uint8_t) (x);      \
+                         ((uint8_t*)(p))[1] = (uint8_t)((x)>>8);  } while(0)
+
+/**
+ * Write a 32 bits integer to memory stored as big endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WB32(p, x)  do { ((uint8_t*)(p))[3] = (uint8_t) (x);      \
+                         ((uint8_t*)(p))[2] = (uint8_t)((x)>>8);  \
+                         ((uint8_t*)(p))[1] = (uint8_t)((x)>>16); \
+                         ((uint8_t*)(p))[0] = (uint8_t)((x)>>24); } while(0)
+
+/**
+ * Write a 32 bits integer to memory stored as little endian.
+ * @param p a pointer to the output memory
+ * @param x the input integer
+ */
+#define WL32(p, x)  do { ((uint8_t*)(p))[0] = (uint8_t) (x);      \
+                         ((uint8_t*)(p))[1] = (uint8_t)((x)>>8);  \
+                         ((uint8_t*)(p))[2] = (uint8_t)((x)>>16); \
+                         ((uint8_t*)(p))[3] = (uint8_t)((x)>>24); } while(0)
+
 /* Portability fixes for FreeBSD. */
 #ifdef __FreeBSD__
 #define LIBUSB_CLASS_APPLICATION 0xfe
@@ -194,7 +244,6 @@ SR_PRIV void sr_dev_inst_free(struct sr_dev_inst *sdi);
 /* USB-specific instances */
 SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
 		uint8_t address, struct libusb_device_handle *hdl);
-SR_PRIV GSList *sr_usb_find_usbtmc(libusb_context *usb_ctx);
 SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb);
 #endif
 
@@ -324,6 +373,7 @@ SR_PRIV int sr_serial_extract_options(GSList *options, const char **serial_devic
 SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
 		int timeout, sr_receive_data_callback_t cb, void *cb_data);
 SR_PRIV int serial_source_remove(struct sr_serial_dev_inst *serial);
+SR_PRIV GSList *sr_serial_find_usb(uint16_t vendor_id, uint16_t product_id);
 #endif
 
 /*--- hardware/common/ezusb.c -----------------------------------------------*/
@@ -388,8 +438,9 @@ struct sr_scpi_dev_inst {
 	const char *name;
 	const char *prefix;
 	int priv_size;
-	int (*dev_inst_new)(void *priv, const char *resource, char **params,
-		const char *serialcomm);
+	GSList *(*scan)(struct drv_context *drvc);
+	int (*dev_inst_new)(void *priv, struct drv_context *drvc,
+		const char *resource, char **params, const char *serialcomm);
 	int (*open)(void *priv);
 	int (*source_add)(void *priv, int events,
 		int timeout, sr_receive_data_callback_t cb, void *cb_data);
@@ -403,8 +454,10 @@ struct sr_scpi_dev_inst {
 	void *priv;
 };
 
-SR_PRIV struct sr_scpi_dev_inst *scpi_dev_inst_new(const char *resource,
-		const char *serialcomm);
+SR_PRIV GSList *sr_scpi_scan(struct drv_context *drvc, GSList *options,
+		struct sr_dev_inst *(*probe_device)(struct sr_scpi_dev_inst *scpi));
+SR_PRIV struct sr_scpi_dev_inst *scpi_dev_inst_new(struct drv_context *drvc,
+		const char *resource, const char *serialcomm);
 SR_PRIV int sr_scpi_open(struct sr_scpi_dev_inst *scpi);
 SR_PRIV int sr_scpi_source_add(struct sr_scpi_dev_inst *scpi, int events,
 		int timeout, sr_receive_data_callback_t cb, void *cb_data);