dev/ic/z8530sc.c

109 zs_break(struct zs_chanstate *cs, int set)
113 		cs->cs_preg[5] |= ZSWR5_BREAK;
114 		cs->cs_creg[5] |= ZSWR5_BREAK;
116 		cs->cs_preg[5] &= ~ZSWR5_BREAK;
117 		cs->cs_creg[5] &= ~ZSWR5_BREAK;
119 	zs_write_reg(cs, 5, cs->cs_creg[5]);
127 zs_iflush(struct zs_chanstate *cs)
138 		rr0 = zs_read_csr(cs);
146 		rr1 = zs_read_reg(cs, 1);
147 		c = zs_read_data(cs);
151 			zs_write_csr(cs, ZSWR0_RESET_ERRORS);
164 zs_loadchannelregs(struct zs_chanstate *cs)
168 	zs_write_csr(cs, ZSM_RESET_ERR); /* XXX: reset error condition */
175 	zs_iflush(cs);	/* XXX */
178 	if (cs->cs_ctl_chan != NULL)
179 		v = ((cs->cs_ctl_chan->cs_creg[5] & (ZSWR5_RTS | ZSWR5_DTR)) !=
180 		    (cs->cs_ctl_chan->cs_preg[5] & (ZSWR5_RTS | ZSWR5_DTR)));
184 	if (memcmp((void *)cs->cs_preg, (void *)cs->cs_creg, 16) == 0 && !v)
188 	memcpy((void *)cs->cs_creg, (void *)cs->cs_preg, 16);
189 	reg = cs->cs_creg;	/* current regs */
192 	zs_write_reg(cs, 1, reg[1] & ~ZSWR1_IMASK);
195 	zs_write_reg(cs, 4, reg[4]);
198 	zs_write_reg(cs, 10, reg[10]);
201 	zs_write_reg(cs, 3, reg[3] & ~ZSWR3_RX_ENABLE);
202 	zs_write_reg(cs, 5, reg[5] & ~ZSWR5_TX_ENABLE);
205 	zs_write_reg(cs, 6, reg[6]);
207 		zs_write_reg(cs, 15, 0);
208 	zs_write_reg(cs, 7, reg[7]);
219 	zs_write_reg(cs, 2, reg[2]);
221 	zs_write_reg(cs, 9, reg[9]);
225 	zs_write_reg(cs, 14, reg[14] & ~ZSWR14_BAUD_ENA);
229 	ZS_MD_SETCLK(cs);
233 	zs_write_reg(cs, 11, reg[11]);
236 	zs_write_reg(cs, 12, reg[12]);
237 	zs_write_reg(cs, 13, reg[13]);
240 	zs_write_reg(cs, 14, reg[14]);
243 	zs_write_reg(cs, 15, reg[15]);
251 	zs_write_csr(cs, ZSM_RESET_STINT);
252 	zs_write_csr(cs, ZSM_RESET_STINT);
255 	zs_write_reg(cs, 3, reg[3]);
256 	zs_write_reg(cs, 5, reg[5]);
259 	if (cs->cs_ctl_chan != NULL) {
260 		v = cs->cs_ctl_chan->cs_preg[5];
261 		cs->cs_ctl_chan->cs_creg[5] = v;
262 		zs_write_reg(cs->cs_ctl_chan, 5, v);
267 		zs_write_reg(cs, 7, reg[16]);
270 	zs_write_reg(cs, 1, reg[1]);
347 	struct zs_chanstate *cs;
352 		cs = zsc->zsc_cs[chan];
359 		if (cs->cs_softreq) {
360 			cs->cs_softreq = 0;
361 			(*cs->cs_ops->zsop_softint)(cs);
378 zsnull_rxint(struct zs_chanstate *cs)
382 	cs->cs_softreq = 1;
386 zsnull_stint(struct zs_chanstate *cs, int force)
390 	cs->cs_softreq = 1;
394 zsnull_txint(struct zs_chanstate *cs)
398 	cs->cs_softreq = 1;
402 zsnull_softint(struct zs_chanstate *cs)
405 	zs_write_reg(cs,  1, 0);
406 	zs_write_reg(cs, 15, 0);