Commit | Line | Data |
---|---|---|
fd1e4b7b | 1 | /* lp.c 4.18 81/04/02 */ |
3f431cc4 | 2 | |
66b4fb09 | 3 | #include "lp.h" |
ca063532 | 4 | #if NLP > 0 |
3f431cc4 BJ |
5 | /* |
6 | * LP-11 Line printer driver | |
7 | * | |
3f431cc4 BJ |
8 | * This driver has been modified to work on printers where |
9 | * leaving IENABLE set would cause continuous interrupts. | |
683f0425 MT |
10 | * |
11 | * TODO: | |
683f0425 | 12 | * Test driver on multiple printers |
3f431cc4 BJ |
13 | */ |
14 | ||
15 | #include "../h/param.h" | |
16 | #include "../h/dir.h" | |
17 | #include "../h/user.h" | |
18 | #include "../h/buf.h" | |
19 | #include "../h/systm.h" | |
20 | #include "../h/map.h" | |
21 | #include "../h/pte.h" | |
ca063532 | 22 | #include "../h/ubavar.h" |
3f431cc4 BJ |
23 | #include "../h/ioctl.h" |
24 | #include "../h/tty.h" | |
3f431cc4 BJ |
25 | |
26 | #define LPPRI (PZERO+8) | |
27 | #define IENABLE 0100 | |
28 | #define DONE 0200 | |
29 | #define ERROR 0100000 | |
30 | #define LPLWAT 650 | |
31 | #define LPHWAT 800 | |
32 | ||
ca063532 MT |
33 | #define MAXCOL 132 |
34 | #define CAP 1 | |
35 | ||
36 | #define LPUNIT(dev) (minor(dev) >> 3) | |
37 | ||
38 | struct lpdevice { | |
3f431cc4 BJ |
39 | short lpsr; |
40 | short lpbuf; | |
41 | }; | |
42 | ||
ca063532 MT |
43 | struct lp_softc { |
44 | struct clist sc_outq; | |
45 | int sc_state; | |
46 | int sc_physcol; | |
47 | int sc_logcol; | |
48 | int sc_physline; | |
49 | char sc_flags; | |
50 | int sc_lpchar; | |
51 | struct buf *sc_inbuf; | |
52 | } lp_softc[NLP]; | |
53 | ||
54 | struct uba_device *lpinfo[NLP]; | |
55 | ||
56 | int lpprobe(), lpattach(), lptout(); | |
57 | u_short lpstd[] = { 0177514 }; | |
58 | struct uba_driver lpdriver = | |
59 | { lpprobe, 0, lpattach, 0, lpstd, "lp", lpinfo }; | |
3f431cc4 BJ |
60 | |
61 | /* bits for state */ | |
62 | #define OPEN 1 /* device is open */ | |
63 | #define TOUT 2 /* timeout is active */ | |
64 | #define MOD 4 /* device state has been modified */ | |
65 | #define ASLP 8 /* awaiting draining of printer */ | |
66 | ||
67 | extern lbolt; | |
68 | int lptout(); | |
69 | ||
5ffed226 BJ |
70 | lpattach(ui) |
71 | struct uba_device *ui; | |
72 | { | |
73 | register struct lp_softc *sc; | |
74 | ||
75 | sc = &lp_softc[ui->ui_unit]; | |
76 | sc->sc_lpchar = -1; | |
77 | } | |
78 | ||
79 | lpprobe(reg) | |
80 | caddr_t reg; | |
81 | { | |
c2213eb5 | 82 | register int br, cvec; /* value-result */ |
5ffed226 BJ |
83 | register struct lpdevice *lpaddr = (struct lpdevice *)reg; |
84 | ||
85 | lpaddr->lpsr = IENABLE; | |
c2213eb5 | 86 | DELAY(5); |
5ffed226 BJ |
87 | lpaddr->lpsr = 0; |
88 | } | |
89 | ||
3f431cc4 BJ |
90 | /*ARGSUSED*/ |
91 | lpopen(dev, flag) | |
5ffed226 BJ |
92 | dev_t dev; |
93 | int flag; | |
3f431cc4 | 94 | { |
ca063532 MT |
95 | register int unit; |
96 | register struct lpdevice *lpaddr; | |
97 | register struct lp_softc *sc; | |
98 | register struct uba_device *ui; | |
99 | ||
5ffed226 BJ |
100 | if ((unit = LPUNIT(dev)) >= NLP || |
101 | (sc = &lp_softc[unit])->sc_state&OPEN || | |
102 | (ui = lpinfo[unit]) == 0 || ui->ui_alive == 0) { | |
ca063532 MT |
103 | u.u_error = ENXIO; |
104 | return; | |
105 | } | |
5ffed226 BJ |
106 | lpaddr = (struct lpdevice *)ui->ui_addr; |
107 | if (lpaddr->lpsr&ERROR) { | |
3f431cc4 BJ |
108 | u.u_error = EIO; |
109 | return; | |
110 | } | |
ca063532 MT |
111 | sc->sc_state |= OPEN; |
112 | sc->sc_inbuf = geteblk(); | |
113 | sc->sc_flags = minor(dev) & 07; | |
a0eab615 | 114 | (void) spl4(); |
ca063532 MT |
115 | if ((sc->sc_state&TOUT) == 0) { |
116 | sc->sc_state |= TOUT; | |
117 | timeout(lptout, dev, 10*hz); | |
3f431cc4 | 118 | } |
a0eab615 | 119 | (void) spl0(); |
5ffed226 | 120 | lpcanon(dev, '\f'); |
3f431cc4 BJ |
121 | } |
122 | ||
123 | /*ARGSUSED*/ | |
124 | lpclose(dev, flag) | |
5ffed226 BJ |
125 | dev_t dev; |
126 | int flag; | |
3f431cc4 | 127 | { |
5ffed226 | 128 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 | 129 | |
5ffed226 | 130 | lpcanon(dev, '\f'); |
ca063532 MT |
131 | brelse(sc->sc_inbuf); |
132 | sc->sc_state &= ~OPEN; | |
3f431cc4 BJ |
133 | } |
134 | ||
ca063532 | 135 | lpwrite(dev) |
5ffed226 | 136 | dev_t dev; |
3f431cc4 | 137 | { |
ca063532 | 138 | register int n; |
3f431cc4 | 139 | register char *cp; |
5ffed226 | 140 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 BJ |
141 | |
142 | while (n = min(BSIZE, u.u_count)) { | |
ca063532 | 143 | cp = sc->sc_inbuf->b_un.b_addr; |
3f431cc4 BJ |
144 | iomove(cp, n, B_WRITE); |
145 | do | |
5ffed226 | 146 | lpcanon(dev, *cp++); |
3f431cc4 BJ |
147 | while (--n); |
148 | } | |
149 | } | |
150 | ||
5ffed226 BJ |
151 | lpcanon(dev, c) |
152 | dev_t dev; | |
153 | register int c; | |
3f431cc4 BJ |
154 | { |
155 | register int logcol, physcol; | |
5ffed226 | 156 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 | 157 | |
ca063532 | 158 | if (sc->sc_flags&CAP) { |
3f431cc4 BJ |
159 | register c2; |
160 | ||
161 | if (c>='a' && c<='z') | |
162 | c += 'A'-'a'; else | |
163 | switch (c) { | |
164 | ||
165 | case '{': | |
166 | c2 = '('; | |
167 | goto esc; | |
168 | ||
169 | case '}': | |
170 | c2 = ')'; | |
171 | goto esc; | |
172 | ||
173 | case '`': | |
174 | c2 = '\''; | |
175 | goto esc; | |
176 | ||
177 | case '|': | |
178 | c2 = '!'; | |
179 | goto esc; | |
180 | ||
181 | case '~': | |
182 | c2 = '^'; | |
183 | ||
184 | esc: | |
5ffed226 | 185 | lpcanon(dev, c2); |
ca063532 | 186 | sc->sc_logcol--; |
3f431cc4 BJ |
187 | c = '-'; |
188 | } | |
189 | } | |
ca063532 MT |
190 | logcol = sc->sc_logcol; |
191 | physcol = sc->sc_physcol; | |
3f431cc4 BJ |
192 | if (c == ' ') |
193 | logcol++; | |
194 | else switch(c) { | |
195 | ||
196 | case '\t': | |
36abf8b6 | 197 | logcol = (logcol+8) & ~7; |
3f431cc4 BJ |
198 | break; |
199 | ||
3f431cc4 | 200 | case '\f': |
ca063532 | 201 | if (sc->sc_physline == 0 && physcol == 0) |
ea588cf0 | 202 | break; |
fb5a911f MT |
203 | /* fall into ... */ |
204 | ||
205 | case '\n': | |
5ffed226 | 206 | lpoutput(dev, c); |
ea588cf0 | 207 | if (c == '\f') |
ca063532 | 208 | sc->sc_physline = 0; |
ea588cf0 | 209 | else |
ca063532 | 210 | sc->sc_physline++; |
fb5a911f | 211 | physcol = 0; |
3f431cc4 BJ |
212 | /* fall into ... */ |
213 | ||
214 | case '\r': | |
ca063532 | 215 | logcol = 0; |
a0eab615 | 216 | (void) spl4(); |
5ffed226 | 217 | lpintr(LPUNIT(dev)); |
a0eab615 | 218 | (void) spl0(); |
3f431cc4 BJ |
219 | break; |
220 | ||
221 | case '\b': | |
222 | if (logcol > 0) | |
223 | logcol--; | |
224 | break; | |
225 | ||
226 | default: | |
227 | if (logcol < physcol) { | |
5ffed226 | 228 | lpoutput(dev, '\r'); |
3f431cc4 BJ |
229 | physcol = 0; |
230 | } | |
ca063532 | 231 | if (logcol < MAXCOL) { |
3f431cc4 | 232 | while (logcol > physcol) { |
5ffed226 | 233 | lpoutput(dev, ' '); |
3f431cc4 BJ |
234 | physcol++; |
235 | } | |
5ffed226 | 236 | lpoutput(dev, c); |
3f431cc4 BJ |
237 | physcol++; |
238 | } | |
239 | logcol++; | |
240 | } | |
241 | if (logcol > 1000) /* ignore long lines */ | |
242 | logcol = 1000; | |
ca063532 MT |
243 | sc->sc_logcol = logcol; |
244 | sc->sc_physcol = physcol; | |
3f431cc4 BJ |
245 | } |
246 | ||
5ffed226 BJ |
247 | lpoutput(dev, c) |
248 | dev_t dev; | |
249 | int c; | |
3f431cc4 | 250 | { |
5ffed226 | 251 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 | 252 | |
ca063532 | 253 | if (sc->sc_outq.c_cc >= LPHWAT) { |
a0eab615 | 254 | (void) spl4(); |
5ffed226 | 255 | lpintr(LPUNIT(dev)); /* unchoke */ |
ca063532 MT |
256 | while (sc->sc_outq.c_cc >= LPHWAT) { |
257 | sc->sc_state |= ASLP; /* must be ERROR */ | |
258 | sleep((caddr_t)sc, LPPRI); | |
3f431cc4 | 259 | } |
a0eab615 | 260 | (void) spl0(); |
3f431cc4 | 261 | } |
ca063532 | 262 | while (putc(c, &sc->sc_outq)) |
3f431cc4 BJ |
263 | sleep((caddr_t)&lbolt, LPPRI); |
264 | } | |
265 | ||
5ffed226 BJ |
266 | lpintr(lp11) |
267 | int lp11; | |
3f431cc4 BJ |
268 | { |
269 | register int n; | |
5ffed226 BJ |
270 | register struct lp_softc *sc = &lp_softc[lp11]; |
271 | register struct uba_device *ui = lpinfo[lp11]; | |
272 | register struct lpdevice *lpaddr = (struct lpdevice *)ui->ui_addr; | |
ca063532 | 273 | |
ca063532 MT |
274 | lpaddr->lpsr &= ~IENABLE; |
275 | n = sc->sc_outq.c_cc; | |
276 | if (sc->sc_lpchar < 0) | |
277 | sc->sc_lpchar = getc(&sc->sc_outq); | |
278 | while ((lpaddr->lpsr&DONE) && sc->sc_lpchar >= 0) { | |
279 | lpaddr->lpbuf = sc->sc_lpchar; | |
280 | sc->sc_lpchar = getc(&sc->sc_outq); | |
3f431cc4 | 281 | } |
ca063532 MT |
282 | sc->sc_state |= MOD; |
283 | if (sc->sc_outq.c_cc > 0 && (lpaddr->lpsr&ERROR)==0) | |
284 | lpaddr->lpsr |= IENABLE; /* ok and more to do later */ | |
285 | if (n>LPLWAT && sc->sc_outq.c_cc<=LPLWAT && sc->sc_state&ASLP) { | |
286 | sc->sc_state &= ~ASLP; | |
287 | wakeup((caddr_t)sc); /* top half should go on */ | |
3f431cc4 BJ |
288 | } |
289 | } | |
290 | ||
ca063532 | 291 | lptout(dev) |
5ffed226 | 292 | dev_t dev; |
3f431cc4 | 293 | { |
ca063532 MT |
294 | register struct lp_softc *sc; |
295 | register struct uba_device *ui; | |
296 | register struct lpdevice *lpaddr; | |
297 | ||
298 | sc = &lp_softc[LPUNIT(dev)]; | |
299 | ui = lpinfo[LPUNIT(dev)]; | |
300 | lpaddr = (struct lpdevice *) ui->ui_addr; | |
301 | if ((sc->sc_state&MOD) != 0) { | |
302 | sc->sc_state &= ~MOD; /* something happened */ | |
303 | timeout(lptout, dev, 2*hz); /* so don't sweat */ | |
3f431cc4 BJ |
304 | return; |
305 | } | |
ca063532 MT |
306 | if ((sc->sc_state&OPEN) == 0) { |
307 | sc->sc_state &= ~TOUT; /* no longer open */ | |
308 | lpaddr->lpsr = 0; | |
3f431cc4 BJ |
309 | return; |
310 | } | |
ca063532 | 311 | if (sc->sc_outq.c_cc && (lpaddr->lpsr&DONE) && (lpaddr->lpsr&ERROR)==0) |
5ffed226 | 312 | lpintr(LPUNIT(dev)); /* ready to go */ |
ca063532 | 313 | timeout(lptout, dev, 10*hz); |
3f431cc4 BJ |
314 | } |
315 | ||
ca063532 | 316 | lpreset(uban) |
5ffed226 | 317 | int uban; |
3f431cc4 | 318 | { |
ca063532 MT |
319 | register struct uba_device *ui; |
320 | register struct lpdevice *lpaddr; | |
321 | register int unit; | |
322 | ||
5ffed226 BJ |
323 | for (unit = 0; unit < NLP; unit++) { |
324 | if ((ui = lpinfo[unit]) == 0 || ui->ui_ubanum != uban || | |
325 | ui->ui_alive == 0) | |
ca063532 MT |
326 | continue; |
327 | printf(" lp%d", unit); | |
5ffed226 | 328 | lpaddr = (struct lpdevice *)ui->ui_addr; |
ca063532 | 329 | lpaddr->lpsr |= IENABLE; |
3f431cc4 BJ |
330 | } |
331 | } |