162 	struct zs_chanstate *cs;  in zs_attach()  local
177 		cs = &zsc->zsc_cs_store[channel];  in zs_attach()
179 		zsc->zsc_cs[channel] = cs;  in zs_attach()
184 			memcpy(cs, zs_conschan, sizeof(struct zs_chanstate));  in zs_attach()
185 			zs_conschan = cs;  in zs_attach()
188 			cs->cs_reg_csr  = zs_base + chanoff[channel] + ZS_CSR;  in zs_attach()
189 			cs->cs_reg_data = zs_base + chanoff[channel] + ZS_DATA;  in zs_attach()
190 			memcpy(cs->cs_creg, zs_init_reg, 16);  in zs_attach()
191 			memcpy(cs->cs_preg, zs_init_reg, 16);  in zs_attach()
192 			cs->cs_defspeed = zs_defspeed;  in zs_attach()
196 		zs_lock_init(cs);  in zs_attach()
197 		cs->cs_defcflag = zs_def_cflag;  in zs_attach()
199 		cs->cs_channel = channel;  in zs_attach()
200 		cs->cs_private = NULL;  in zs_attach()
201 		cs->cs_ops = &zsops_null;  in zs_attach()
202 		cs->cs_brg_clk = PCLK / 16;  in zs_attach()
205 		cs->cs_rr0_dcd = ZSRR0_DCD;  in zs_attach()
206 		cs->cs_rr0_cts = 0;  in zs_attach()
207 		cs->cs_wr5_dtr = ZSWR5_DTR | ZSWR5_RTS;  in zs_attach()
208 		cs->cs_wr5_rts = 0;  in zs_attach()
217 			zs_write_reg(cs, 9, 0);  in zs_attach()
231 			zs_write_reg(cs,  9, reset);  in zs_attach()
247 	cs = zsc->zsc_cs[0];  in zs_attach()
250 	zs_write_reg(cs, 2, 0);  in zs_attach()
252 	zs_write_reg(cs, 9, zs_init_reg[9]);  in zs_attach()
297 zs_get_speed(struct zs_chanstate *cs)
301 	tconst =  zs_read_reg(cs, 12);
302 	tconst |= zs_read_reg(cs, 13) << 8;
303 	return TCONST_TO_BPS(cs->cs_brg_clk, tconst);
311 zs_set_speed(struct zs_chanstate *cs, int bps)  in zs_set_speed()  argument
319 	if (cs->cs_brg_clk == 0)  in zs_set_speed()
323 	tconst = BPS_TO_TCONST(cs->cs_brg_clk, bps);  in zs_set_speed()
328 	real_bps = TCONST_TO_BPS(cs->cs_brg_clk, tconst);  in zs_set_speed()
334 	cs->cs_preg[12] = tconst;  in zs_set_speed()
335 	cs->cs_preg[13] = tconst >> 8;  in zs_set_speed()
342 zs_set_modes(struct zs_chanstate *cs, int cflag)  in zs_set_modes()  argument
354 	cs->cs_rr0_pps = 0;  in zs_set_modes()
356 		cs->cs_rr0_dcd = 0;  in zs_set_modes()
358 			cs->cs_rr0_pps = ZSRR0_DCD;  in zs_set_modes()
360 		cs->cs_rr0_dcd = ZSRR0_DCD;  in zs_set_modes()
362 		cs->cs_wr5_dtr = ZSWR5_DTR;  in zs_set_modes()
363 		cs->cs_wr5_rts = ZSWR5_RTS;  in zs_set_modes()
364 		cs->cs_rr0_cts = ZSRR0_CTS;  in zs_set_modes()
366 		cs->cs_wr5_dtr = 0;  in zs_set_modes()
367 		cs->cs_wr5_rts = ZSWR5_DTR;  in zs_set_modes()
368 		cs->cs_rr0_cts = ZSRR0_DCD;  in zs_set_modes()
370 		cs->cs_wr5_dtr = ZSWR5_DTR | ZSWR5_RTS;  in zs_set_modes()
371 		cs->cs_wr5_rts = 0;  in zs_set_modes()
372 		cs->cs_rr0_cts = 0;  in zs_set_modes()
386 zs_read_reg(struct zs_chanstate *cs, uint8_t reg)  in zs_read_reg()  argument
390 	*cs->cs_reg_csr = reg;  in zs_read_reg()
392 	val = *cs->cs_reg_csr;  in zs_read_reg()
398 zs_write_reg(struct zs_chanstate *cs, uint8_t reg, uint8_t val)  in zs_write_reg()  argument
401 	*cs->cs_reg_csr = reg;  in zs_write_reg()
403 	*cs->cs_reg_csr = val;  in zs_write_reg()
408 zs_read_csr(struct zs_chanstate *cs)  in zs_read_csr()  argument
412 	val = *cs->cs_reg_csr;  in zs_read_csr()
418 zs_write_csr(struct zs_chanstate *cs, uint8_t val)  in zs_write_csr()  argument
421 	*cs->cs_reg_csr = val;  in zs_write_csr()
426 zs_read_data(struct zs_chanstate *cs)  in zs_read_data()  argument
430 	val = *cs->cs_reg_data;  in zs_read_data()
436 zs_write_data(struct zs_chanstate *cs, uint8_t val)  in zs_write_data()  argument
439 	*cs->cs_reg_data = val;  in zs_write_data()
444 zs_abort(struct zs_chanstate *cs)  in zs_abort()  argument
458 	struct zs_chanstate *cs = arg;  in zs_getc()  local
465 		rr0 = *cs->cs_reg_csr;  in zs_getc()
469 	c = *cs->cs_reg_data;  in zs_getc()
482 	struct zs_chanstate *cs = arg;  in zs_putc()  local
489 		rr0 = *cs->cs_reg_csr;  in zs_putc()
493 	*cs->cs_reg_data = c;  in zs_putc()
509 	struct zs_chanstate *cs;  in zscninit()  local
517 	zs_conschan = cs = &zs_conschan_store;  in zscninit()
520 	cs->cs_reg_csr  = zs_cons + ZS_CSR;  in zscninit()
521 	cs->cs_reg_data = zs_cons + ZS_DATA;  in zscninit()
524 	memcpy(cs->cs_preg, zs_init_reg, 16);  in zscninit()
525 	cs->cs_preg[5] |= ZSWR5_DTR | ZSWR5_RTS;  in zscninit()
527 	cs->cs_preg[12] = BPS_TO_TCONST(PCLK / 16, ZS_DEFSPEED);  in zscninit()
528 	cs->cs_preg[13] = 0;  in zscninit()
529 	cs->cs_defspeed = ZS_DEFSPEED;  in zscninit()
532 	zs_write_reg(cs, 9, 0);  in zscninit()
535 	zs_write_reg(cs, 9, ZSWR9_HARD_RESET);  in zscninit()
538 	zs_loadchannelregs(cs);  in zscninit()