5 	ktti.c is a low-level protocol driver for the KT Technology
7         portable hard-drives.  As far as I can tell, this device
8 	supports 4-bit mode _only_.  
24 #define j44(a,b)                (((a>>4)&0x0f)|(b&0xf0))  argument
26 /* cont = 0 - access the IDE register file 
27    cont = 1 - access the IDE command set 
44 {	int  a, b, r;  in ktti_read_regr()  local
48         w0(r); w2(0xb); w2(0xa); w2(9); w2(0xc); w2(9);   in ktti_read_regr()
49 	a = r1(); w2(0xc);  b = r1(); w2(9); w2(0xc); w2(9);  in ktti_read_regr()
50 	return j44(a,b);  in ktti_read_regr()
56 {	int  k, a, b;  in ktti_read_block()  local
59 		w0(0x10); w2(0xb); w2(0xa); w2(9); w2(0xc); w2(9);  in ktti_read_block()
60 		a = r1(); w2(0xc); b = r1(); w2(9);  in ktti_read_block()
61 		buf[2*k] = j44(a,b);  in ktti_read_block()
62 		a = r1(); w2(0xc); b = r1(); w2(9);  in ktti_read_block()
63 		buf[2*k+1] = j44(a,b);  in ktti_read_block()
81 {       pi->saved_r0 = r0();  in ktti_connect()
82         pi->saved_r2 = r2();  in ktti_connect()
89 	w0(pi->saved_r0);  in ktti_disconnect()
90         w2(pi->saved_r2);  in ktti_disconnect()
96                 pi->device,KTTI_VERSION,pi->port,pi->delay);  in ktti_log_adapter()