mvme68k/dev/zs.c

132 	struct zs_chanstate *cs;
144 		cs = &zsc->zsc_cs_store[channel];
145 		zsc->zsc_cs[channel] = cs;
152 			memcpy(cs, zs_conschan, sizeof(struct zs_chanstate));
153 			zs_conschan = cs;
156 			cs->cs_reg_csr  = zc->zc_csr;
157 			cs->cs_reg_data = zc->zc_data;
158 			memcpy(cs->cs_creg, zs_init_reg, 16);
159 			memcpy(cs->cs_preg, zs_init_reg, 16);
160 			cs->cs_defspeed = zs_defspeed[zsc_unit][channel];
163 		zs_lock_init(cs);
164 		cs->cs_brg_clk = pclk / 16;
165 		cs->cs_creg[2] = cs->cs_preg[2] = vector;
166 		zs_set_speed(cs, cs->cs_defspeed);
167 		cs->cs_creg[12] = cs->cs_preg[12];
168 		cs->cs_creg[13] = cs->cs_preg[13];
169 		cs->cs_defcflag = zs_def_cflag;
172 		cs->cs_rr0_dcd = ZSRR0_DCD;
173 		cs->cs_rr0_cts = 0;
174 		cs->cs_wr5_dtr = ZSWR5_DTR | ZSWR5_RTS;
175 		cs->cs_wr5_rts = 0;
177 		cs->cs_channel = channel;
178 		cs->cs_private = NULL;
179 		cs->cs_ops = &zsops_null;
188 			zs_write_reg(cs, 9, 0);
189 			zs_write_reg(cs, 2, vector);
202 			zs_write_reg(cs,  9, reset);
286 zs_get_speed(struct zs_chanstate *cs)
290 	tconst = zs_read_reg(cs, 12);
291 	tconst |= zs_read_reg(cs, 13) << 8;
292 	return TCONST_TO_BPS(cs->cs_brg_clk, tconst);
300 zs_set_speed(struct zs_chanstate *cs, int bps)
308 	if (cs->cs_brg_clk == 0)
312 	tconst = BPS_TO_TCONST(cs->cs_brg_clk, bps);
317 	real_bps = TCONST_TO_BPS(cs->cs_brg_clk, tconst);
323 	cs->cs_preg[12] = tconst;
324 	cs->cs_preg[13] = tconst >> 8;
331 zs_set_modes(struct zs_chanstate *cs, int cflag)
343 	cs->cs_rr0_pps = 0;
345 		cs->cs_rr0_dcd = 0;
347 			cs->cs_rr0_pps = ZSRR0_DCD;
349 		cs->cs_rr0_dcd = ZSRR0_DCD;
351 		cs->cs_wr5_dtr = ZSWR5_DTR;
352 		cs->cs_wr5_rts = ZSWR5_RTS;
353 		cs->cs_rr0_cts = ZSRR0_CTS;
355 		cs->cs_wr5_dtr = 0;
356 		cs->cs_wr5_rts = ZSWR5_DTR;
357 		cs->cs_rr0_cts = ZSRR0_DCD;
359 		cs->cs_wr5_dtr = ZSWR5_DTR | ZSWR5_RTS;
360 		cs->cs_wr5_rts = 0;
361 		cs->cs_rr0_cts = 0;
375 zs_read_reg(struct zs_chanstate *cs, uint8_t reg)
379 	*cs->cs_reg_csr = reg;
381 	val = *cs->cs_reg_csr;
387 zs_write_reg(struct zs_chanstate *cs, uint8_t reg, uint8_t val)
390 	*cs->cs_reg_csr = reg;
392 	*cs->cs_reg_csr = val;
397 zs_read_csr(struct zs_chanstate *cs)
401 	val = *cs->cs_reg_csr;
407 zs_write_csr(struct zs_chanstate *cs, uint8_t val)
410 	*cs->cs_reg_csr = val;
415 zs_read_data(struct zs_chanstate *cs)
419 	val = *cs->cs_reg_data;
425 zs_write_data(struct zs_chanstate *cs, uint8_t val)
428 	*cs->cs_reg_data = val;
442 	struct zs_chanstate *cs = arg;
449 		rr0 = *cs->cs_reg_csr;
454 	stat = zs_read_reg(cs, 1) & (ZSRR1_FE | ZSRR1_DO | ZSRR1_PE);
456 		zs_write_csr(cs, ZSM_RESET_ERR);
461 	c = *cs->cs_reg_data;
474 	struct zs_chanstate *cs = arg;
480 		rr0 = *cs->cs_reg_csr;
484 	*cs->cs_reg_data = c;
495 	struct zs_chanstate *cs;
505 	zs_conschan = cs = &zs_conschan_store;
509 	cs->cs_brg_clk = pclk / 16;
510 	cs->cs_reg_csr  = zc->zc_csr;
511 	cs->cs_reg_data = zc->zc_data;
514 	memcpy(cs->cs_preg, zs_init_reg, 16);
515 	cs->cs_preg[5] |= (ZSWR5_DTR | ZSWR5_RTS);
520 	cs->cs_defspeed = zs_get_speed(cs);
522 	cs->cs_defspeed = 9600;	/* XXX */
524 	zs_set_speed(cs, cs->cs_defspeed);
525 	cs->cs_creg[12] = cs->cs_preg[12];
526 	cs->cs_creg[13] = cs->cs_preg[13];
529 	zs_write_reg(cs, 9, 0);
532 	zs_write_reg(cs, 9, ZSWR9_HARD_RESET);
535 	zs_loadchannelregs(cs);
544 	struct zs_chanstate *cs = zs_conschan;
547 	c = zs_getc(cs);
557 	struct zs_chanstate *cs = zs_conschan;
559 	zs_putc(cs, c);
566 zs_abort(struct zs_chanstate *cs)
573 		rr0 = *cs->cs_reg_csr;