macppc/dev/adb_direct.c

119 #define ADB_SET_STATE_IDLE_CUDA()   via_reg_or(VIA1, vBufB, (vPB4 | vPB5))
120 #define ADB_SET_STATE_TIP()	    via_reg_and(VIA1, vBufB, ~vPB5)
121 #define ADB_CLR_STATE_TIP() 	    via_reg_or(VIA1, vBufB, vPB5)
122 #define ADB_TOGGLE_STATE_ACK_CUDA() via_reg_xor(VIA1, vBufB, vPB4)
123 #define ADB_SET_STATE_ACKOFF_CUDA() via_reg_or(VIA1, vBufB, vPB4)
124 #define ADB_SET_SR_INPUT()	    via_reg_and(VIA1, vACR, ~vSR_OUT)
125 #define ADB_SET_SR_OUTPUT()	    via_reg_or(VIA1, vACR, vSR_OUT)
126 #define ADB_SR()		    read_via_reg(VIA1, vSR)
127 #define ADB_VIA_INTR_ENABLE()	    write_via_reg(VIA1, vIER, 0x84)
128 #define ADB_VIA_INTR_DISABLE()	    write_via_reg(VIA1, vIER, 0x04)
129 #define ADB_INTR_IS_OFF		   (vPB3 == (read_via_reg(VIA1, vBufB) & vPB3))
130 #define ADB_INTR_IS_ON		   (0 == (read_via_reg(VIA1, vBufB) & vPB3))
131 #define ADB_SR_INTR_IS_OFF	   (0 == (read_via_reg(VIA1, vIFR) & vSR_INT))
132 #define ADB_SR_INTR_IS_ON	   (vSR_INT == (read_via_reg(VIA1, \
339 	reg = read_via_reg(VIA1, vIFR);		/* Read the interrupts */
345 	write_via_reg(VIA1, vIFR, reg & 0x7f);	/* Clear 'em */
459 				write_via_reg(VIA1, vSR, adbOutputBuffer[adbSentChars + 1]);
528 			write_via_reg(VIA1, vSR, adbOutputBuffer[adbSentChars + 1]);	/* send next byte */
630 		write_via_reg(VIA1, vSR, adbOutputBuffer[adbSentChars + 1]);	/* load byte for output */
638 	if ((s & (1 << 18)) || adb_polling) /* XXX were VIA1 interrupts blocked ? */
936 		write_via_reg(VIA1, vIFR, 0x90);	/* clear interrupt */
940 		via_reg_or(VIA1, vDirB, 0x30);	/* register B bits 4 and 5:
942 		via_reg_and(VIA1, vDirB, 0xf7);	/* register B bit 3: input */
943 		via_reg_and(VIA1, vACR, ~vSR_OUT);	/* make sure SR is set
945 		write_via_reg(VIA1, vACR, (read_via_reg(VIA1, vACR) | 0x0c) & ~0x10);
948 		write_via_reg(VIA1, vIER, 0x84);/* make sure VIA interrupts
970 		write_via_reg(VIA1, vIER, 0x04);/* turn interrupts off - TO