29 /* mode codes:  0  nybble reads, 8-bit writes
34 #define j44(a,b)	(((a>>3)&0x0f)|((b<<1)&0xf0))
36 #define P1	w2(5);w2(0xd);w2(0xd);w2(5);w2(4);
39 /* cont = 0 - access the IDE register file 
43 static int  cont_map[2] = { 0x08, 0x10 };
53         case 0: w0(r); P1; w0(0);  in comm_read_regr()
54         	w2(6); l = r1(); w0(0x80); h = r1(); w2(4);  in comm_read_regr()
57         case 1: w0(r+0x20); P1;   in comm_read_regr()
58         	w0(0); w2(0x26); h = r0(); w2(4);  in comm_read_regr()
63         case 4: w3(r+0x20); (void)r1();  in comm_read_regr()
64         	w2(0x24); h = r4(); w2(4);  in comm_read_regr()
79         case 0:  in comm_write_regr()
94         w2(4); w0(0xff); w2(6);  in comm_connect()
95         w2(4); w0(0xaa); w2(6);  in comm_connect()
96         w2(4); w0(0x00); w2(6);  in comm_connect()
97         w2(4); w0(0x87); w2(6);  in comm_connect()
98         w2(4); w0(0xe0); w2(0xc); w2(0xc); w2(4);  in comm_connect()
103 {       w2(0); w2(0); w2(0); w2(4);   in comm_disconnect()
114         case 0: w0(0x48); P1;  in comm_read_block()
115                 for(i=0;i<count;i++) {  in comm_read_block()
116                         w0(0); w2(6); l = r1();  in comm_read_block()
117                         w0(0x80); h = r1(); w2(4);  in comm_read_block()
122         case 1: w0(0x68); P1; w0(0);  in comm_read_block()
123                 for(i=0;i<count;i++) {  in comm_read_block()
124                         w2(0x26); buf[i] = r0(); w2(0x24);  in comm_read_block()
129 	case 2: w3(0x68); (void)r1(); w2(0x24);  in comm_read_block()
130 		for (i=0;i<count;i++) buf[i] = r4();  in comm_read_block()
134         case 3: w3(0x68); (void)r1(); w2(0x24);  in comm_read_block()
135                 for (i=0;i<count/2;i++) ((u16 *)buf)[i] = r4w();  in comm_read_block()
139         case 4: w3(0x68); (void)r1(); w2(0x24);  in comm_read_block()
140                 for (i=0;i<count/4;i++) ((u32 *)buf)[i] = r4l();  in comm_read_block()
155         case 0:  in comm_write_block()
156         case 1: w0(0x68); P1;  in comm_write_block()
157         	for (k=0;k<count;k++) {  in comm_write_block()
163         case 2: w3(0x48); (void)r1();  in comm_write_block()
164                 for (k=0;k<count;k++) w4(buf[k^1]);  in comm_write_block()
167         case 3: w3(0x48); (void)r1();  in comm_write_block()
168                 for (k=0;k<count/2;k++) w4w(pi_swab16(buf,k));  in comm_write_block()
171         case 4: w3(0x48); (void)r1();  in comm_write_block()
172                 for (k=0;k<count/4;k++) w4l(pi_swab32(buf,k));  in comm_write_block()
183         printk("%s: comm %s, DataStor Commuter at 0x%x, ",  in comm_log_adapter()