libaltos: integrate Windows support.

This adds Windows support for discovery and I/O.

The API to the library is mostly unchanged, except that it now exports
product and vendor USB IDs as Win7 doesn't expose the product name
anywhere that we've been able to find, so we'll be updating the
firmware to use unique idProduct values for each product.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 56 insertions, 12 deletions

diff --git a/ao-tools/libaltos/libaltos.h b/ao-tools/libaltos/libaltos.h
index 53026e0a..fe2c483c 100644
--- a/ao-tools/libaltos/libaltos.h
+++ b/ao-tools/libaltos/libaltos.h
@@ -18,39 +18,83 @@
 #ifndef _LIBALTOS_H_
 #define _LIBALTOS_H_
 
+#if defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+# ifndef BUILD_STATIC
+#  ifdef BUILD_DLL
+#   define PUBLIC __declspec(dllexport)
+#  else
+#   define PUBLIC __declspec(dllimport)
+#  endif
+# endif /* BUILD_STATIC */
+#endif
+
+#ifndef PUBLIC
+# define PUBLIC
+#endif
+
+#define USB_VENDOR_FSF			0xfffe
+#define USB_VENDOR_ALTUSMETRUM		USB_VENDOR_FSF
+#define USB_PRODUCT_ALTUSMETRUM		0x000a
+#define USB_PRODUCT_TELEMETRUM		0x000b
+#define USB_PRODUCT_TELEDONGLE		0x000c
+#define USB_PRODUCT_TELETERRA		0x000d
+#define USB_PRODUCT_ALTUSMETRUM_MIN	0x000a
+#define USB_PRODUCT_ALTUSMETRUM_MAX	0x0013
+
+#define USB_IS_ALTUSMETRUM(v,p)	((v) == USB_VENDOR_ALTUSMETRUM && \
+		(USB_PRODUCT_ALTUSMETRUM_MIN <= (p) && \
+		 (p) <= USB_PRODUCT_ALTUSMETRUM_MAX))
+
 struct altos_device {
 	//%immutable;
-	char				product[256];
+	int				vendor;
+	int				product;
 	int				serial;
+	char				name[256];
 	char				path[256];
 	//%mutable;
 };
 
-int altos_init(void);
+#define LIBALTOS_SUCCESS	0
+#define LIBALTOS_ERROR		-1
+#define LIBALTOS_TIMEOUT	-2
+
+/* Returns 0 for success, < 0 on error */
+PUBLIC int
+altos_init(void);
 
-void altos_fini(void);
+PUBLIC void
+altos_fini(void);
 
-struct altos_list *
+PUBLIC struct altos_list *
 altos_list_start(void);
 
-int altos_list_next(struct altos_list *list, struct altos_device *device);
+/* Returns 1 for success, zero on end of list */
+PUBLIC int
+altos_list_next(struct altos_list *list, struct altos_device *device);
 
-void altos_list_finish(struct altos_list *list);
+PUBLIC void
+altos_list_finish(struct altos_list *list);
 
-struct altos_file *
+PUBLIC struct altos_file *
 altos_open(struct altos_device *device);
 
-void altos_close(struct altos_file *file);
+PUBLIC void
+altos_close(struct altos_file *file);
 
-void altos_free(struct altos_file *file);
+PUBLIC void
+altos_free(struct altos_file *file);
 
-int
+/* Returns < 0 for error */
+PUBLIC int
 altos_putchar(struct altos_file *file, char c);
 
-int
+/* Returns < 0 for error */
+PUBLIC int
 altos_flush(struct altos_file *file);
 
-int
+/* Returns < 0 for error or timeout. timeout of 0 == wait forever */
+PUBLIC int
 altos_getchar(struct altos_file *file, int timeout);
 
 #endif /* _LIBALTOS_H_ */