1 files changed, 65 insertions, 0 deletions
diff --git a/xpp/slic.h b/xpp/slic.h
new file mode 100644
index 0000000..76f2d6e
--- /dev/null
+++ b/xpp/slic.h
@@ -0,0 +1,65 @@
+#ifndef	SLIC_H
+#define	SLIC_H
+
+#include "xdefs.h"
+
+/*------------------------------ SLIC Data Structures ----------------------*/
+
+struct slic_reg_d {		/* SLIC Register Direct Read/Write */
+	byte	reg_num:7;
+	byte	read:1;
+	byte	reg_data;
+} __attribute__((packed));
+
+struct slic_reg_iw {		/* SLIC Register Indirect-Write */
+	struct slic_reg_d	iw_data_low;
+	struct slic_reg_d	iw_data_high;
+	struct slic_reg_d	iw_reg;
+} __attribute__((packed));
+
+struct slic_reg_ir {		/* SLIC Register Indirect-Read */
+	struct slic_reg_d	ir_reg;
+} __attribute__((packed));
+
+typedef struct slic_cmd {
+	xpp_line_t	lines;
+	byte		bytes;
+	union {
+		struct slic_reg_d	direct;
+		struct slic_reg_iw	indirect_write;
+		struct slic_reg_ir	indirect_read;
+	} content;
+} __attribute__((packed)) slic_cmd_t;
+
+typedef	struct slic_reply {
+	byte	size;
+	byte	reg_num:7;
+	byte	indirect:1;
+	byte	data_low;
+	byte	data_high;
+} __attribute__((packed)) slic_reply_t;
+
+#define	SLIC_REG_INIT(slic_reg, reading, num, data)	\
+				do {	\
+					(slic_reg)->read = reading;	\
+					(slic_reg)->reg_num = num;	\
+					(slic_reg)->reg_data = data;	\
+				} while(0);
+
+/* OLD SLIC_INIT data */
+typedef	struct slic_data {
+	byte	len;
+	byte	data[40];
+} __attribute__((packed)) slic_data_t;
+
+
+/*------------------------------ SLIC Initializers -------------------------*/
+
+int slic_cmd_direct_write(slic_cmd_t *sc, xpp_line_t lines, byte reg, byte data);
+int slic_cmd_direct_read(slic_cmd_t *sc, xpp_line_t lines, byte reg);
+int slic_cmd_indirect_write(slic_cmd_t *sc, xpp_line_t lines, byte reg, byte data_low, byte data_high);
+int slic_cmd_indirect_read(slic_cmd_t *sc, xpp_line_t lines, byte reg);
+void dump_slic_cmd(const char msg[], slic_cmd_t *sc);
+
+
+#endif	/* SLIC_H */