Lines Matching defs:zc

192 	volatile struct zschan *zc;
248 		zc = (channel == 0) ? &zsd->zs_chan_a : &zsd->zs_chan_b;
250 		cs->cs_reg_csr  = &zc->zc_csr;
251 		cs->cs_reg_data = &zc->zc_data;
891 zs_getc(volatile struct zschan *zc)
898 		rr0 = in8(&zc->zc_csr);
902 	c = in8(&zc->zc_data);
913 zs_putc(volatile struct zschan *zc, int c)
921 		rr0 = in8(&zc->zc_csr);
926 		out8(&zc->zc_data, c);
939 	register volatile struct zschan *zc = zs_conschan;
942 	if (zc) {
943 		c = zs_getc(zc);
958 	register volatile struct zschan *zc = zs_conschan;
960 	if (zc) {
961 		zs_putc(zc, c);
1048 	volatile struct zschan *zc = zs_conschan;
1054 		rr0 = zc->zc_csr;