lpt_pcctwo.c revision 1.9.16.1 1 1.9.16.1 mjf /* $NetBSD: lpt_pcctwo.c,v 1.9.16.1 2008/04/03 12:42:47 mjf Exp $ */
2 1.1 scw
3 1.1 scw /*-
4 1.1 scw * Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
5 1.1 scw * All rights reserved.
6 1.1 scw *
7 1.1 scw * This code is derived from software contributed to The NetBSD Foundation
8 1.1 scw * by Steve C. Woodford.
9 1.1 scw *
10 1.1 scw * Redistribution and use in source and binary forms, with or without
11 1.1 scw * modification, are permitted provided that the following conditions
12 1.1 scw * are met:
13 1.1 scw * 1. Redistributions of source code must retain the above copyright
14 1.1 scw * notice, this list of conditions and the following disclaimer.
15 1.1 scw * 2. Redistributions in binary form must reproduce the above copyright
16 1.1 scw * notice, this list of conditions and the following disclaimer in the
17 1.1 scw * documentation and/or other materials provided with the distribution.
18 1.1 scw * 3. All advertising materials mentioning features or use of this software
19 1.1 scw * must display the following acknowledgement:
20 1.1 scw * This product includes software developed by the NetBSD
21 1.1 scw * Foundation, Inc. and its contributors.
22 1.1 scw * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.1 scw * contributors may be used to endorse or promote products derived
24 1.1 scw * from this software without specific prior written permission.
25 1.1 scw *
26 1.1 scw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 1.1 scw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 1.1 scw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 1.1 scw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 1.1 scw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 1.1 scw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 1.1 scw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 1.1 scw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 1.1 scw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 1.1 scw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 1.1 scw * POSSIBILITY OF SUCH DAMAGE.
37 1.1 scw */
38 1.1 scw
39 1.1 scw /*
40 1.1 scw * Device Driver back-end for the PCCChip2's parallel printer port
41 1.1 scw */
42 1.5 lukem
43 1.5 lukem #include <sys/cdefs.h>
44 1.9.16.1 mjf __KERNEL_RCSID(0, "$NetBSD: lpt_pcctwo.c,v 1.9.16.1 2008/04/03 12:42:47 mjf Exp $");
45 1.1 scw
46 1.1 scw #include <sys/param.h>
47 1.1 scw #include <sys/kernel.h>
48 1.1 scw #include <sys/systm.h>
49 1.1 scw #include <sys/device.h>
50 1.1 scw #include <sys/syslog.h>
51 1.1 scw
52 1.9 ad #include <sys/cpu.h>
53 1.9 ad #include <sys/bus.h>
54 1.1 scw
55 1.1 scw #include <dev/mvme/lptvar.h>
56 1.1 scw #include <dev/mvme/pcctworeg.h>
57 1.1 scw #include <dev/mvme/pcctwovar.h>
58 1.1 scw
59 1.1 scw /*
60 1.1 scw * Autoconfig stuff
61 1.1 scw */
62 1.9.16.1 mjf int lpt_pcctwo_match(device_t, cfdata_t , void *);
63 1.9.16.1 mjf void lpt_pcctwo_attach(device_t, device_t, void *);
64 1.1 scw
65 1.9.16.1 mjf CFATTACH_DECL_NEW(lpt_pcctwo, sizeof(struct lpt_softc),
66 1.4 thorpej lpt_pcctwo_match, lpt_pcctwo_attach, NULL, NULL);
67 1.1 scw
68 1.1 scw extern struct cfdriver lpt_cd;
69 1.1 scw
70 1.1 scw
71 1.6 perry int lpt_pcctwo_intr(void *);
72 1.6 perry void lpt_pcctwo_open(struct lpt_softc *, int);
73 1.6 perry void lpt_pcctwo_close(struct lpt_softc *);
74 1.6 perry void lpt_pcctwo_iprime(struct lpt_softc *);
75 1.6 perry void lpt_pcctwo_speed(struct lpt_softc *, int);
76 1.6 perry int lpt_pcctwo_notrdy(struct lpt_softc *, int);
77 1.6 perry void lpt_pcctwo_wr_data(struct lpt_softc *, u_char);
78 1.1 scw
79 1.1 scw struct lpt_funcs lpt_pcctwo_funcs = {
80 1.1 scw lpt_pcctwo_open,
81 1.1 scw lpt_pcctwo_close,
82 1.1 scw lpt_pcctwo_iprime,
83 1.1 scw lpt_pcctwo_speed,
84 1.1 scw lpt_pcctwo_notrdy,
85 1.1 scw lpt_pcctwo_wr_data
86 1.1 scw };
87 1.1 scw
88 1.1 scw /* ARGSUSED */
89 1.1 scw int
90 1.1 scw lpt_pcctwo_match(parent, cf, args)
91 1.9.16.1 mjf device_t parent;
92 1.9.16.1 mjf cfdata_t cf;
93 1.1 scw void *args;
94 1.1 scw {
95 1.1 scw struct pcctwo_attach_args *pa;
96 1.1 scw
97 1.1 scw pa = args;
98 1.1 scw
99 1.1 scw if (strcmp(pa->pa_name, lpt_cd.cd_name))
100 1.1 scw return (0);
101 1.1 scw
102 1.1 scw #ifdef MVME68K
103 1.1 scw if (machineid != MVME_167 && machineid != MVME_177)
104 1.1 scw return (0);
105 1.1 scw #endif
106 1.1 scw
107 1.1 scw #ifdef MVME88K
108 1.1 scw if (machineid != MVME_187)
109 1.1 scw return (0);
110 1.1 scw #endif
111 1.1 scw
112 1.1 scw pa->pa_ipl = cf->pcctwocf_ipl;
113 1.1 scw
114 1.1 scw return (1);
115 1.1 scw }
116 1.1 scw
117 1.1 scw /* ARGSUSED */
118 1.1 scw void
119 1.1 scw lpt_pcctwo_attach(parent, self, args)
120 1.9.16.1 mjf device_t parent;
121 1.9.16.1 mjf device_t self;
122 1.1 scw void *args;
123 1.1 scw {
124 1.1 scw struct pcctwo_attach_args *pa;
125 1.1 scw struct lpt_softc *sc;
126 1.1 scw
127 1.1 scw pa = (struct pcctwo_attach_args *) args;
128 1.8 thorpej sc = device_private(self);
129 1.9.16.1 mjf sc->sc_dev = self;
130 1.1 scw
131 1.1 scw /* The printer registers are part of the PCCChip2's own registers. */
132 1.1 scw sc->sc_bust = pa->pa_bust;
133 1.1 scw bus_space_map(pa->pa_bust, pa->pa_offset, PCC2REG_SIZE, 0,
134 1.1 scw &sc->sc_bush);
135 1.1 scw
136 1.1 scw sc->sc_ipl = pa->pa_ipl & PCCTWO_ICR_LEVEL_MASK;
137 1.1 scw sc->sc_laststatus = 0;
138 1.1 scw sc->sc_funcs = &lpt_pcctwo_funcs;
139 1.1 scw
140 1.9.16.1 mjf aprint_normal(": PCCchip2 Parallel Printer\n");
141 1.1 scw
142 1.1 scw /*
143 1.1 scw * Disable interrupts until device is opened
144 1.1 scw */
145 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_ACK_ICSR, 0);
146 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_FAULT_ICSR, 0);
147 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_SEL_ICSR, 0);
148 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_PE_ICSR, 0);
149 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_BUSY_ICSR, 0);
150 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_CONTROL, 0);
151 1.1 scw
152 1.1 scw /*
153 1.1 scw * Main attachment code
154 1.1 scw */
155 1.1 scw lpt_attach_subr(sc);
156 1.1 scw
157 1.1 scw /* Register the event counter */
158 1.1 scw evcnt_attach_dynamic(&sc->sc_evcnt, EVCNT_TYPE_INTR,
159 1.9.16.1 mjf pcctwointr_evcnt(sc->sc_ipl), "printer", device_xname(sc->sc_dev));
160 1.1 scw
161 1.1 scw /*
162 1.1 scw * Hook into the printer interrupt
163 1.1 scw */
164 1.1 scw pcctwointr_establish(PCCTWOV_PRT_ACK, lpt_pcctwo_intr, sc->sc_ipl, sc,
165 1.1 scw &sc->sc_evcnt);
166 1.1 scw }
167 1.1 scw
168 1.1 scw /*
169 1.1 scw * Handle printer interrupts
170 1.1 scw */
171 1.1 scw int
172 1.1 scw lpt_pcctwo_intr(arg)
173 1.1 scw void *arg;
174 1.1 scw {
175 1.1 scw struct lpt_softc *sc;
176 1.1 scw int i;
177 1.1 scw
178 1.1 scw sc = (struct lpt_softc *) arg;
179 1.1 scw
180 1.1 scw /* is printer online and ready for output */
181 1.1 scw if (lpt_pcctwo_notrdy(sc, 0) || lpt_pcctwo_notrdy(sc, 1))
182 1.1 scw return (0);
183 1.1 scw
184 1.1 scw i = lpt_intr(sc);
185 1.1 scw
186 1.1 scw if (pcc2_reg_read(sc, PCC2REG_PRT_INPUT_STATUS) & PCCTWO_PRT_IN_SR_PINT)
187 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_ACK_ICSR,
188 1.1 scw sc->sc_icr | PCCTWO_ICR_ICLR);
189 1.1 scw
190 1.1 scw return (i);
191 1.1 scw }
192 1.1 scw
193 1.1 scw void
194 1.1 scw lpt_pcctwo_open(sc, int_ena)
195 1.1 scw struct lpt_softc *sc;
196 1.1 scw int int_ena;
197 1.1 scw {
198 1.1 scw int sps;
199 1.1 scw
200 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_ACK_ICSR,
201 1.1 scw PCCTWO_ICR_ICLR | PCCTWO_ICR_EDGE);
202 1.1 scw
203 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_CONTROL,
204 1.1 scw pcc2_reg_read(sc, PCC2REG_PRT_CONTROL) | PCCTWO_PRT_CTRL_DOEN);
205 1.1 scw
206 1.1 scw if (int_ena == 0) {
207 1.1 scw sps = splhigh();
208 1.1 scw sc->sc_icr = sc->sc_ipl | PCCTWO_ICR_EDGE;
209 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_ACK_ICSR, sc->sc_icr);
210 1.1 scw splx(sps);
211 1.1 scw }
212 1.1 scw }
213 1.1 scw
214 1.1 scw void
215 1.1 scw lpt_pcctwo_close(sc)
216 1.1 scw struct lpt_softc *sc;
217 1.1 scw {
218 1.1 scw
219 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_ACK_ICSR,
220 1.1 scw PCCTWO_ICR_ICLR | PCCTWO_ICR_EDGE);
221 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_CONTROL, 0);
222 1.1 scw }
223 1.1 scw
224 1.1 scw void
225 1.1 scw lpt_pcctwo_iprime(sc)
226 1.1 scw struct lpt_softc *sc;
227 1.1 scw {
228 1.1 scw
229 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_CONTROL,
230 1.1 scw pcc2_reg_read(sc, PCC2REG_PRT_CONTROL) | PCCTWO_PRT_CTRL_INP);
231 1.1 scw
232 1.1 scw delay(100);
233 1.1 scw
234 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_CONTROL,
235 1.1 scw pcc2_reg_read(sc, PCC2REG_PRT_CONTROL) & ~PCCTWO_PRT_CTRL_INP);
236 1.1 scw
237 1.1 scw delay(100);
238 1.1 scw }
239 1.1 scw
240 1.1 scw void
241 1.1 scw lpt_pcctwo_speed(sc, speed)
242 1.1 scw struct lpt_softc *sc;
243 1.1 scw int speed;
244 1.1 scw {
245 1.1 scw u_int8_t reg;
246 1.1 scw
247 1.1 scw reg = pcc2_reg_read(sc, PCC2REG_PRT_CONTROL);
248 1.1 scw
249 1.1 scw if (speed == LPT_STROBE_FAST)
250 1.1 scw reg |= PCCTWO_PRT_CTRL_FAST;
251 1.1 scw else
252 1.1 scw reg &= ~PCCTWO_PRT_CTRL_FAST;
253 1.1 scw
254 1.1 scw pcc2_reg_write(sc, PCC2REG_PRT_CONTROL, reg);
255 1.1 scw }
256 1.1 scw
257 1.1 scw int
258 1.1 scw lpt_pcctwo_notrdy(sc, err)
259 1.1 scw struct lpt_softc *sc;
260 1.1 scw int err;
261 1.1 scw {
262 1.1 scw u_int8_t status;
263 1.1 scw u_int8_t new;
264 1.1 scw
265 1.1 scw #define LPS_INVERT (PCCTWO_PRT_IN_SR_SEL)
266 1.1 scw #define LPS_MASK (PCCTWO_PRT_IN_SR_SEL | PCCTWO_PRT_IN_SR_FLT | \
267 1.1 scw PCCTWO_PRT_IN_SR_BSY | PCCTWO_PRT_IN_SR_PE)
268 1.1 scw
269 1.1 scw status = pcc2_reg_read(sc, PCC2REG_PRT_INPUT_STATUS) ^ LPS_INVERT;
270 1.1 scw status &= LPS_MASK;
271 1.1 scw
272 1.1 scw if (err) {
273 1.1 scw new = status & ~sc->sc_laststatus;
274 1.1 scw sc->sc_laststatus = status;
275 1.1 scw
276 1.1 scw if (new & PCCTWO_PRT_IN_SR_SEL)
277 1.1 scw log(LOG_NOTICE, "%s: offline\n",
278 1.9.16.1 mjf device_xname(sc->sc_dev));
279 1.1 scw else if (new & PCCTWO_PRT_IN_SR_PE)
280 1.1 scw log(LOG_NOTICE, "%s: out of paper\n",
281 1.9.16.1 mjf device_xname(sc->sc_dev));
282 1.1 scw else if (new & PCCTWO_PRT_IN_SR_FLT)
283 1.1 scw log(LOG_NOTICE, "%s: output error\n",
284 1.9.16.1 mjf device_xname(sc->sc_dev));
285 1.1 scw }
286 1.1 scw
287 1.1 scw return (status);
288 1.1 scw }
289 1.1 scw
290 1.1 scw void
291 1.1 scw lpt_pcctwo_wr_data(sc, data)
292 1.1 scw struct lpt_softc *sc;
293 1.1 scw u_char data;
294 1.1 scw {
295 1.1 scw
296 1.1 scw pcc2_reg_write16(sc, PCC2REG_PRT_DATA, (u_int16_t) data);
297 1.1 scw }
298