Commit | Line | Data |
---|---|---|
5ffed226 | 1 | /* lp.c 4.14 81/03/11 */ |
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: | |
12 | * Test driver | |
13 | * Test driver on multiple printers | |
3f431cc4 BJ |
14 | */ |
15 | ||
16 | #include "../h/param.h" | |
17 | #include "../h/dir.h" | |
18 | #include "../h/user.h" | |
19 | #include "../h/buf.h" | |
20 | #include "../h/systm.h" | |
21 | #include "../h/map.h" | |
22 | #include "../h/pte.h" | |
ca063532 | 23 | #include "../h/ubavar.h" |
3f431cc4 BJ |
24 | #include "../h/ioctl.h" |
25 | #include "../h/tty.h" | |
3f431cc4 BJ |
26 | |
27 | #define LPPRI (PZERO+8) | |
28 | #define IENABLE 0100 | |
29 | #define DONE 0200 | |
30 | #define ERROR 0100000 | |
31 | #define LPLWAT 650 | |
32 | #define LPHWAT 800 | |
33 | ||
ca063532 MT |
34 | #define MAXCOL 132 |
35 | #define CAP 1 | |
36 | ||
37 | #define LPUNIT(dev) (minor(dev) >> 3) | |
38 | ||
39 | struct lpdevice { | |
3f431cc4 BJ |
40 | short lpsr; |
41 | short lpbuf; | |
42 | }; | |
43 | ||
ca063532 MT |
44 | struct lp_softc { |
45 | struct clist sc_outq; | |
46 | int sc_state; | |
47 | int sc_physcol; | |
48 | int sc_logcol; | |
49 | int sc_physline; | |
50 | char sc_flags; | |
51 | int sc_lpchar; | |
52 | struct buf *sc_inbuf; | |
53 | } lp_softc[NLP]; | |
54 | ||
55 | struct uba_device *lpinfo[NLP]; | |
56 | ||
57 | int lpprobe(), lpattach(), lptout(); | |
58 | u_short lpstd[] = { 0177514 }; | |
59 | struct uba_driver lpdriver = | |
60 | { lpprobe, 0, lpattach, 0, lpstd, "lp", lpinfo }; | |
3f431cc4 BJ |
61 | |
62 | /* bits for state */ | |
63 | #define OPEN 1 /* device is open */ | |
64 | #define TOUT 2 /* timeout is active */ | |
65 | #define MOD 4 /* device state has been modified */ | |
66 | #define ASLP 8 /* awaiting draining of printer */ | |
67 | ||
68 | extern lbolt; | |
69 | int lptout(); | |
70 | ||
5ffed226 BJ |
71 | lpattach(ui) |
72 | struct uba_device *ui; | |
73 | { | |
74 | register struct lp_softc *sc; | |
75 | ||
76 | sc = &lp_softc[ui->ui_unit]; | |
77 | sc->sc_lpchar = -1; | |
78 | } | |
79 | ||
80 | lpprobe(reg) | |
81 | caddr_t reg; | |
82 | { | |
83 | register struct lpdevice *lpaddr = (struct lpdevice *)reg; | |
84 | ||
85 | lpaddr->lpsr = IENABLE; | |
86 | lpaddr->lpbuf = ' '; | |
87 | DELAY(10000); | |
88 | lpaddr->lpsr = 0; | |
89 | } | |
90 | ||
3f431cc4 BJ |
91 | /*ARGSUSED*/ |
92 | lpopen(dev, flag) | |
5ffed226 BJ |
93 | dev_t dev; |
94 | int flag; | |
3f431cc4 | 95 | { |
ca063532 MT |
96 | register int unit; |
97 | register struct lpdevice *lpaddr; | |
98 | register struct lp_softc *sc; | |
99 | register struct uba_device *ui; | |
100 | ||
5ffed226 BJ |
101 | if ((unit = LPUNIT(dev)) >= NLP || |
102 | (sc = &lp_softc[unit])->sc_state&OPEN || | |
103 | (ui = lpinfo[unit]) == 0 || ui->ui_alive == 0) { | |
ca063532 MT |
104 | u.u_error = ENXIO; |
105 | return; | |
106 | } | |
5ffed226 BJ |
107 | lpaddr = (struct lpdevice *)ui->ui_addr; |
108 | if (lpaddr->lpsr&ERROR) { | |
3f431cc4 BJ |
109 | u.u_error = EIO; |
110 | return; | |
111 | } | |
ca063532 MT |
112 | sc->sc_state |= OPEN; |
113 | sc->sc_inbuf = geteblk(); | |
114 | sc->sc_flags = minor(dev) & 07; | |
a0eab615 | 115 | (void) spl4(); |
ca063532 MT |
116 | if ((sc->sc_state&TOUT) == 0) { |
117 | sc->sc_state |= TOUT; | |
118 | timeout(lptout, dev, 10*hz); | |
3f431cc4 | 119 | } |
a0eab615 | 120 | (void) spl0(); |
5ffed226 | 121 | lpcanon(dev, '\f'); |
3f431cc4 BJ |
122 | } |
123 | ||
124 | /*ARGSUSED*/ | |
125 | lpclose(dev, flag) | |
5ffed226 BJ |
126 | dev_t dev; |
127 | int flag; | |
3f431cc4 | 128 | { |
5ffed226 | 129 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 | 130 | |
5ffed226 | 131 | lpcanon(dev, '\f'); |
ca063532 MT |
132 | brelse(sc->sc_inbuf); |
133 | sc->sc_state &= ~OPEN; | |
3f431cc4 BJ |
134 | } |
135 | ||
ca063532 | 136 | lpwrite(dev) |
5ffed226 | 137 | dev_t dev; |
3f431cc4 | 138 | { |
ca063532 | 139 | register int n; |
3f431cc4 | 140 | register char *cp; |
5ffed226 | 141 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 BJ |
142 | |
143 | while (n = min(BSIZE, u.u_count)) { | |
ca063532 | 144 | cp = sc->sc_inbuf->b_un.b_addr; |
3f431cc4 BJ |
145 | iomove(cp, n, B_WRITE); |
146 | do | |
5ffed226 | 147 | lpcanon(dev, *cp++); |
3f431cc4 BJ |
148 | while (--n); |
149 | } | |
150 | } | |
151 | ||
5ffed226 BJ |
152 | lpcanon(dev, c) |
153 | dev_t dev; | |
154 | register int c; | |
3f431cc4 BJ |
155 | { |
156 | register int logcol, physcol; | |
5ffed226 | 157 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 | 158 | |
ca063532 | 159 | if (sc->sc_flags&CAP) { |
3f431cc4 BJ |
160 | register c2; |
161 | ||
162 | if (c>='a' && c<='z') | |
163 | c += 'A'-'a'; else | |
164 | switch (c) { | |
165 | ||
166 | case '{': | |
167 | c2 = '('; | |
168 | goto esc; | |
169 | ||
170 | case '}': | |
171 | c2 = ')'; | |
172 | goto esc; | |
173 | ||
174 | case '`': | |
175 | c2 = '\''; | |
176 | goto esc; | |
177 | ||
178 | case '|': | |
179 | c2 = '!'; | |
180 | goto esc; | |
181 | ||
182 | case '~': | |
183 | c2 = '^'; | |
184 | ||
185 | esc: | |
5ffed226 | 186 | lpcanon(dev, c2); |
ca063532 | 187 | sc->sc_logcol--; |
3f431cc4 BJ |
188 | c = '-'; |
189 | } | |
190 | } | |
ca063532 MT |
191 | logcol = sc->sc_logcol; |
192 | physcol = sc->sc_physcol; | |
3f431cc4 BJ |
193 | if (c == ' ') |
194 | logcol++; | |
195 | else switch(c) { | |
196 | ||
197 | case '\t': | |
ca063532 | 198 | logcol = (logcol-8) & ~7; |
3f431cc4 BJ |
199 | break; |
200 | ||
3f431cc4 | 201 | case '\f': |
ca063532 | 202 | if (sc->sc_physline == 0 && physcol == 0) |
ea588cf0 | 203 | break; |
fb5a911f MT |
204 | /* fall into ... */ |
205 | ||
206 | case '\n': | |
5ffed226 | 207 | lpoutput(dev, c); |
ea588cf0 | 208 | if (c == '\f') |
ca063532 | 209 | sc->sc_physline = 0; |
ea588cf0 | 210 | else |
ca063532 | 211 | sc->sc_physline++; |
fb5a911f | 212 | physcol = 0; |
3f431cc4 BJ |
213 | /* fall into ... */ |
214 | ||
215 | case '\r': | |
ca063532 | 216 | logcol = 0; |
a0eab615 | 217 | (void) spl4(); |
5ffed226 | 218 | lpintr(LPUNIT(dev)); |
a0eab615 | 219 | (void) spl0(); |
3f431cc4 BJ |
220 | break; |
221 | ||
222 | case '\b': | |
223 | if (logcol > 0) | |
224 | logcol--; | |
225 | break; | |
226 | ||
227 | default: | |
228 | if (logcol < physcol) { | |
5ffed226 | 229 | lpoutput(dev, '\r'); |
3f431cc4 BJ |
230 | physcol = 0; |
231 | } | |
ca063532 | 232 | if (logcol < MAXCOL) { |
3f431cc4 | 233 | while (logcol > physcol) { |
5ffed226 | 234 | lpoutput(dev, ' '); |
3f431cc4 BJ |
235 | physcol++; |
236 | } | |
5ffed226 | 237 | lpoutput(dev, c); |
3f431cc4 BJ |
238 | physcol++; |
239 | } | |
240 | logcol++; | |
241 | } | |
242 | if (logcol > 1000) /* ignore long lines */ | |
243 | logcol = 1000; | |
ca063532 MT |
244 | sc->sc_logcol = logcol; |
245 | sc->sc_physcol = physcol; | |
3f431cc4 BJ |
246 | } |
247 | ||
5ffed226 BJ |
248 | lpoutput(dev, c) |
249 | dev_t dev; | |
250 | int c; | |
3f431cc4 | 251 | { |
5ffed226 | 252 | register struct lp_softc *sc = &lp_softc[LPUNIT(dev)]; |
3f431cc4 | 253 | |
ca063532 | 254 | if (sc->sc_outq.c_cc >= LPHWAT) { |
a0eab615 | 255 | (void) spl4(); |
5ffed226 | 256 | lpintr(LPUNIT(dev)); /* unchoke */ |
ca063532 MT |
257 | while (sc->sc_outq.c_cc >= LPHWAT) { |
258 | sc->sc_state |= ASLP; /* must be ERROR */ | |
259 | sleep((caddr_t)sc, LPPRI); | |
3f431cc4 | 260 | } |
a0eab615 | 261 | (void) spl0(); |
3f431cc4 | 262 | } |
ca063532 | 263 | while (putc(c, &sc->sc_outq)) |
3f431cc4 BJ |
264 | sleep((caddr_t)&lbolt, LPPRI); |
265 | } | |
266 | ||
5ffed226 BJ |
267 | lpintr(lp11) |
268 | int lp11; | |
3f431cc4 BJ |
269 | { |
270 | register int n; | |
5ffed226 BJ |
271 | register struct lp_softc *sc = &lp_softc[lp11]; |
272 | register struct uba_device *ui = lpinfo[lp11]; | |
273 | register struct lpdevice *lpaddr = (struct lpdevice *)ui->ui_addr; | |
ca063532 | 274 | |
ca063532 MT |
275 | lpaddr->lpsr &= ~IENABLE; |
276 | n = sc->sc_outq.c_cc; | |
277 | if (sc->sc_lpchar < 0) | |
278 | sc->sc_lpchar = getc(&sc->sc_outq); | |
279 | while ((lpaddr->lpsr&DONE) && sc->sc_lpchar >= 0) { | |
280 | lpaddr->lpbuf = sc->sc_lpchar; | |
281 | sc->sc_lpchar = getc(&sc->sc_outq); | |
3f431cc4 | 282 | } |
ca063532 MT |
283 | sc->sc_state |= MOD; |
284 | if (sc->sc_outq.c_cc > 0 && (lpaddr->lpsr&ERROR)==0) | |
285 | lpaddr->lpsr |= IENABLE; /* ok and more to do later */ | |
286 | if (n>LPLWAT && sc->sc_outq.c_cc<=LPLWAT && sc->sc_state&ASLP) { | |
287 | sc->sc_state &= ~ASLP; | |
288 | wakeup((caddr_t)sc); /* top half should go on */ | |
3f431cc4 BJ |
289 | } |
290 | } | |
291 | ||
ca063532 | 292 | lptout(dev) |
5ffed226 | 293 | dev_t dev; |
3f431cc4 | 294 | { |
ca063532 MT |
295 | register struct lp_softc *sc; |
296 | register struct uba_device *ui; | |
297 | register struct lpdevice *lpaddr; | |
298 | ||
299 | sc = &lp_softc[LPUNIT(dev)]; | |
300 | ui = lpinfo[LPUNIT(dev)]; | |
301 | lpaddr = (struct lpdevice *) ui->ui_addr; | |
302 | if ((sc->sc_state&MOD) != 0) { | |
303 | sc->sc_state &= ~MOD; /* something happened */ | |
304 | timeout(lptout, dev, 2*hz); /* so don't sweat */ | |
3f431cc4 BJ |
305 | return; |
306 | } | |
ca063532 MT |
307 | if ((sc->sc_state&OPEN) == 0) { |
308 | sc->sc_state &= ~TOUT; /* no longer open */ | |
309 | lpaddr->lpsr = 0; | |
3f431cc4 BJ |
310 | return; |
311 | } | |
ca063532 | 312 | if (sc->sc_outq.c_cc && (lpaddr->lpsr&DONE) && (lpaddr->lpsr&ERROR)==0) |
5ffed226 | 313 | lpintr(LPUNIT(dev)); /* ready to go */ |
ca063532 | 314 | timeout(lptout, dev, 10*hz); |
3f431cc4 BJ |
315 | } |
316 | ||
ca063532 | 317 | lpreset(uban) |
5ffed226 | 318 | int uban; |
3f431cc4 | 319 | { |
ca063532 MT |
320 | register struct uba_device *ui; |
321 | register struct lpdevice *lpaddr; | |
322 | register int unit; | |
323 | ||
5ffed226 BJ |
324 | for (unit = 0; unit < NLP; unit++) { |
325 | if ((ui = lpinfo[unit]) == 0 || ui->ui_ubanum != uban || | |
326 | ui->ui_alive == 0) | |
ca063532 MT |
327 | continue; |
328 | printf(" lp%d", unit); | |
5ffed226 | 329 | lpaddr = (struct lpdevice *)ui->ui_addr; |
ca063532 | 330 | lpaddr->lpsr |= IENABLE; |
3f431cc4 BJ |
331 | } |
332 | } |