30 #define j44(a,b)                ((((a>>4)&0x0f)|(b&0xf0))^0x88)
32 /* cont = 0 - access the IDE register file 
36 static int  cont_map[2] = { 0x08, 0x20 };
42 	r = regr + cont_map[cont] + 0x80;  in aten_write_regr()
44 	w0(r); w2(0xe); w2(6); w0(val); w2(7); w2(6); w2(0xc);  in aten_write_regr()
51         r = regr + cont_map[cont] + 0x40;  in aten_read_regr()
55         case 0: w0(r); w2(0xe); w2(6);   in aten_read_regr()
56 		w2(7); w2(6); w2(0);  in aten_read_regr()
57 		a = r1(); w0(0x10); b = r1(); w2(0xc);  in aten_read_regr()
60         case 1: r |= 0x10;  in aten_read_regr()
61 		w0(r); w2(0xe); w2(6); w0(0xff);   in aten_read_regr()
62 		w2(0x27); w2(0x26); w2(0x20);  in aten_read_regr()
64 		w2(0x26); w2(0xc);  in aten_read_regr()
76 	case 0:	w0(0x48); w2(0xe); w2(6);  in aten_read_block()
77 		for (k=0;k<count/2;k++) {  in aten_read_block()
79 			a = r1(); w0(0x58); b = r1();  in aten_read_block()
80 			w2(0); d = r1(); w0(0x48); c = r1();  in aten_read_block()
84 		w2(0xc);  in aten_read_block()
87 	case 1: w0(0x58); w2(0xe); w2(6);  in aten_read_block()
88 		for (k=0;k<count/2;k++) {  in aten_read_block()
89 			w2(0x27); w2(0x26); w2(0x22);  in aten_read_block()
90 			a = r0(); w2(0x20); b = r0();  in aten_read_block()
93 		w2(0x26); w2(0xc);  in aten_read_block()
102 	w0(0x88); w2(0xe); w2(6);  in aten_write_block()
103 	for (k=0;k<count/2;k++) {  in aten_write_block()
104 		w0(buf[2*k+1]); w2(0xe); w2(6);  in aten_write_block()
107 	w2(0xc);  in aten_write_block()
114 	w2(0xc);	  in aten_connect()
127         printk("%s: aten %s, ATEN EH-100 at 0x%x, ",  in aten_log_adapter()