--- a/lc8951.h	Fri Jan 28 22:48:06 2022 -0800
+++ b/lc8951.h	Sat Jan 29 17:43:37 2022 -0800
@@ -3,35 +3,40 @@
 
 #include <stdint.h>
 
+typedef uint8_t (*lcd8951_byte_recv_fun)(void *data, uint8_t byte);
+
 typedef struct {
+	lcd8951_byte_recv_fun byte_handler;
+	void     *handler_data;
 	uint32_t cycle;
 	uint32_t clock_step;
 	uint32_t decode_end;
 	uint32_t transfer_end;
 
-	uint8_t buffer[0x4000];
+	uint8_t  buffer[0x4000];
 
-	uint8_t regs[16];
-	uint8_t comin[8];
+	uint8_t  regs[16];
+	uint8_t  comin[8];
 
 	uint16_t dac;
-	uint8_t comin_write;
-	uint8_t comin_count;
-	uint8_t ifctrl;
-	uint8_t ctrl0;
-	uint8_t ctrl1;
-	uint8_t ar;
-	uint8_t ar_mask;
-	uint8_t decoding;
+	uint8_t  comin_write;
+	uint8_t  comin_count;
+	uint8_t  ifctrl;
+	uint8_t  ctrl0;
+	uint8_t  ctrl1;
+	uint8_t  ar;
+	uint8_t  ar_mask;
+	uint8_t  decoding;
 	uint16_t ptl_internal;
 } lc8951;
 
-void lc8951_init(lc8951 *context);
+void lc8951_init(lc8951 *context, lcd8951_byte_recv_fun byte_handler, void *handler_data);
 void lc8951_run(lc8951 *context, uint32_t cycle);
 void lc8951_reg_write(lc8951 *context, uint8_t value);
 uint8_t lc8951_reg_read(lc8951 *context);
 void lc8951_ar_write(lc8951 *context, uint8_t value);
 void lc8951_write_byte(lc8951 *context, uint32_t cycle, int sector_offset, uint8_t byte);
 uint32_t lc8951_next_interrupt(lc8951 *context);
+void lc8951_resume_transfer(lc8951 *context);
 
 #endif //LC8951_H_