UDI - Adding an attempt at a BochsGA UDI GFX driver

[tpg/acess2.git] / UDI / drivers / helpers.h

diff --git a/UDI/drivers/helpers.h b/UDI/drivers/helpers.h
new file mode 100644 (file)
index 0000000..9b827b3
--- /dev/null
+++ b/UDI/drivers/helpers.h
@@ -0,0 +1,65 @@
+/*
+ * UDI Driver helper macros
+ */
+#ifndef _UDI_HELPERS_H_
+#define _UDI_HELPERS_H_
+
+#if DEBUG_ENABLED
+# define DEBUG_OUT(fmt, v...)  udi_debug_printf("%s: "fmt"\n", __func__ ,## v) 
+#else
+# define DEBUG_OUT(...)        do{}while(0)
+#endif
+
+#define ARRAY_COUNT(arr)       (sizeof(arr)/sizeof(arr[0]))
+
+#define __EXPJOIN(a,b) a##b
+#define _EXPJOIN(a,b)  __EXPJOIN(a,b)
+#define _EXPLODE(params...)    params
+#define _ADDGCB(params...)     (udi_cb_t *gcb, params)
+#define CONTIN(suffix, call, args, params)     extern void _EXPJOIN(suffix##$,__LINE__) _ADDGCB params;\
+       call( _EXPJOIN(suffix##$,__LINE__), gcb, _EXPLODE args); } \
+       void _EXPJOIN(suffix##$,__LINE__) _ADDGCB params { \
+       rdata_t *rdata = gcb->context;
+
+/* Copied from http://projectudi.cvs.sourceforge.net/viewvc/projectudi/udiref/driver/udi_dpt/udi_dpt.h */
+#define UDIH_SET_ATTR_BOOLEAN(attr, name, val) \
+               udi_strcpy((attr)->attr_name, (name)); \
+               (attr)->attr_type = UDI_ATTR_BOOLEAN; \
+               (attr)->attr_length = sizeof(udi_boolean_t); \
+               UDI_ATTR32_SET((attr)->attr_value, (val))
+
+#define UDIH_SET_ATTR32(attr, name, val)       \
+               udi_strcpy((attr)->attr_name, (name)); \
+               (attr)->attr_type = UDI_ATTR_UBIT32; \
+               (attr)->attr_length = sizeof(udi_ubit32_t); \
+               UDI_ATTR32_SET((attr)->attr_value, (val))
+
+#define UDIH_SET_ATTR_ARRAY8(attr, name, val, len) \
+               udi_strcpy((attr)->attr_name, (name)); \
+               (attr)->attr_type = UDI_ATTR_ARRAY8; \
+               (attr)->attr_length = (len); \
+               udi_memcpy((attr)->attr_value, (val), (len))
+
+#define UDIH_SET_ATTR_STRING(attr, name, val, len) \
+               udi_strcpy((attr)->attr_name, (name)); \
+               (attr)->attr_type = UDI_ATTR_STRING; \
+               (attr)->attr_length = (len); \
+               udi_strncpy_rtrim((char *)(attr)->attr_value, (val), (len))
+#define UDIH_SET_ATTR_STRFMT(attr, name, maxlen, fmt, v...) \
+               udi_strcpy((attr)->attr_name, (name)); \
+               (attr)->attr_type = UDI_ATTR_STRING; \
+               (attr)->attr_length = udi_snprintf((char *)(attr)->attr_value, (maxlen), (fmt) ,## v )
+
+/**
+ * \brief UDI PIO Helpers
+ */
+struct s_pio_ops {
+       udi_pio_trans_t *trans_list;
+       udi_ubit16_t    list_length;
+       udi_ubit16_t    pio_attributes;
+       udi_ubit32_t    regset_idx;
+       udi_ubit32_t    base_offset;
+       udi_ubit32_t    length;
+};
+#define UDIH_PIO_OPS_ENTRY(list, attr, regset, base, len)      {list, ARRAY_COUNT(list), attr, regset, base, len}
+#endif