59 static volatile struct adb_regs __iomem *adb;  variable
108 	adb = ioremap(r.start, sizeof(struct adb_regs));  in macio_init()
110 	out_8(&adb->ctrl.r, 0);  in macio_init()
111 	out_8(&adb->intr.r, 0);  in macio_init()
112 	out_8(&adb->error.r, 0);  in macio_init()
113 	out_8(&adb->active_hi.r, 0xff); /* for now, set all devices active */  in macio_init()
114 	out_8(&adb->active_lo.r, 0xff);  in macio_init()
115 	out_8(&adb->autopoll.r, APE);  in macio_init()
123 	out_8(&adb->intr_enb.r, DFB | TAG);  in macio_init()
135 	out_8(&adb->active_hi.r, devs >> 8);  in macio_adb_autopoll()
136 	out_8(&adb->active_lo.r, devs);  in macio_adb_autopoll()
137 	out_8(&adb->autopoll.r, devs? APE: 0);  in macio_adb_autopoll()
153 	out_8(&adb->ctrl.r, in_8(&adb->ctrl.r) | ADB_RST);  in macio_adb_reset_bus()
154 	while ((in_8(&adb->ctrl.r) & ADB_RST) != 0) {  in macio_adb_reset_bus()
156 			out_8(&adb->ctrl.r, in_8(&adb->ctrl.r) & ~ADB_RST);  in macio_adb_reset_bus()
189 		out_8(&adb->ctrl.r, in_8(&adb->ctrl.r) | TAR);  in macio_send_request()
212 	if (in_8(&adb->intr.r) & TAG) {  in macio_adb_interrupt()
217 				out_8(&adb->data[i].r, req->data[i]);  in macio_adb_interrupt()
218 			out_8(&adb->dcount.r, req->nbytes & HMB);  in macio_adb_interrupt()
221 				out_8(&adb->ctrl.r, DTB + CRE);  in macio_adb_interrupt()
223 				out_8(&adb->ctrl.r, DTB);  in macio_adb_interrupt()
227 					out_8(&adb->ctrl.r, in_8(&adb->ctrl.r) | TAR);  in macio_adb_interrupt()
230 		out_8(&adb->intr.r, 0);  in macio_adb_interrupt()
233 	if (in_8(&adb->intr.r) & DFB) {  in macio_adb_interrupt()
235 		err = in_8(&adb->error.r);  in macio_adb_interrupt()
240 				req->reply_len = in_8(&adb->dcount.r) & HMB;  in macio_adb_interrupt()
242 					req->reply[i] = in_8(&adb->data[i].r);  in macio_adb_interrupt()
247 				out_8(&adb->ctrl.r, in_8(&adb->ctrl.r) | TAR);  in macio_adb_interrupt()
250 			n = in_8(&adb->dcount.r) & HMB;  in macio_adb_interrupt()
252 				ibuf[i] = in_8(&adb->data[i].r);  in macio_adb_interrupt()
254 			autopoll = (in_8(&adb->dcount.r) & APD) != 0;  in macio_adb_interrupt()
256 		out_8(&adb->error.r, 0);  in macio_adb_interrupt()
257 		out_8(&adb->intr.r, 0);  in macio_adb_interrupt()
281 	if (in_8(&adb->intr.r) != 0)  in macio_adb_poll()