Commit | Line | Data |
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7da157da | 1 | /* vp.c 4.21 82/10/17 */ |
2a75a0e9 | 2 | |
66b4fb09 | 3 | #include "vp.h" |
a5cc519e BJ |
4 | #if NVP > 0 |
5 | /* | |
6 | * Versatec matrix printer/plotter | |
7 | * dma interface driver | |
48a8d9c7 BJ |
8 | * |
9 | * SETUP NOTES: | |
10 | * Set up both print and plot interrupts to go through the same vector | |
11 | * Give the address of the plcsr register in the config specification | |
a5cc519e | 12 | */ |
2a75a0e9 BJ |
13 | #include "../h/param.h" |
14 | #include "../h/dir.h" | |
15 | #include "../h/user.h" | |
16 | #include "../h/buf.h" | |
17 | #include "../h/systm.h" | |
18 | #include "../h/map.h" | |
19 | #include "../h/pte.h" | |
fc4d0a69 | 20 | #include "../h/vcmd.h" |
5c46243f | 21 | #include "../h/uio.h" |
2a75a0e9 | 22 | |
896962b1 BJ |
23 | #include "../vaxuba/ubavar.h" |
24 | #include "../vaxuba/ubareg.h" | |
25 | ||
2a75a0e9 BJ |
26 | unsigned minvpph(); |
27 | ||
28 | #define VPPRI (PZERO-1) | |
29 | ||
fc4d0a69 | 30 | struct vpdevice { |
2a75a0e9 | 31 | short plbcr; |
3bfdaa99 | 32 | short pbxaddr; |
2a75a0e9 | 33 | short prbcr; |
fc4d0a69 | 34 | u_short pbaddr; |
2a75a0e9 BJ |
35 | short plcsr; |
36 | short plbuf; | |
37 | short prcsr; | |
fc4d0a69 | 38 | u_short prbuf; |
2a75a0e9 BJ |
39 | }; |
40 | ||
fc4d0a69 BJ |
41 | #define VP_ERROR 0100000 |
42 | #define VP_DTCINTR 0040000 | |
43 | #define VP_DMAACT 0020000 | |
44 | #define VP_READY 0000200 | |
45 | #define VP_IENABLE 0000100 | |
46 | #define VP_TERMCOM 0000040 | |
47 | #define VP_FFCOM 0000020 | |
48 | #define VP_EOTCOM 0000010 | |
49 | #define VP_CLRCOM 0000004 | |
50 | #define VP_RESET 0000002 | |
51 | #define VP_SPP 0000001 | |
52 | ||
53 | struct vp_softc { | |
54 | int sc_state; | |
55 | int sc_count; | |
56 | int sc_bufp; | |
57 | struct buf *sc_bp; | |
58 | int sc_ubinfo; | |
59 | } vp_softc[NVP]; | |
60 | ||
61 | /* sc_state bits */ | |
62 | #define VPSC_BUSY 0001000 | |
63 | #define VPSC_MODE 0000700 | |
64 | #define VPSC_SPP 0000400 | |
65 | #define VPSC_PLOT 0000200 | |
66 | #define VPSC_PRINT 0000100 | |
67 | #define VPSC_CMNDS 0000076 | |
68 | #define VPSC_OPEN 0000001 | |
69 | ||
70 | struct uba_device *vpdinfo[NVP]; | |
71 | ||
72 | #define VPUNIT(dev) (minor(dev)) | |
73 | ||
74 | struct buf rvpbuf[NVP]; | |
75 | ||
76 | int vpprobe(), vpattach(); | |
77 | struct uba_device *vpdinfo[NVP]; | |
78 | u_short vpstd[] = { 0777500, 0 }; | |
79 | struct uba_driver vpdriver = | |
80 | { vpprobe, 0, vpattach, 0, vpstd, "vp", vpdinfo }; | |
81 | ||
82 | vpprobe(reg) | |
83 | caddr_t reg; | |
84 | { | |
85 | register int br, cvec; /* value-result */ | |
86 | register struct vpdevice *vpaddr = (struct vpdevice *)(reg-010); | |
87 | ||
89b8a44c BJ |
88 | #ifdef lint |
89 | br = 0; cvec = br; br = cvec; | |
90 | vpintr(0); | |
91 | #endif | |
fc4d0a69 BJ |
92 | vpaddr->prcsr = VP_IENABLE|VP_DTCINTR; |
93 | vpaddr->pbaddr = 0; | |
94 | vpaddr->pbxaddr = 0; | |
48a8d9c7 | 95 | vpaddr->prbcr = 1; |
fc4d0a69 BJ |
96 | DELAY(10000); |
97 | vpaddr->prcsr = 0; | |
243189a0 | 98 | #if ERNIE || CAD || UCBVAX |
48a8d9c7 BJ |
99 | /* UNTIL REWIRED, GET INTERRUPT AT 200 BUT WANT 174 */ |
100 | if (cvec == 0200) { | |
101 | printf("vp reset vec from 200 to 174\n"); | |
102 | cvec = 0174; | |
103 | } | |
104 | #endif | |
9c0adba0 | 105 | return (sizeof (struct vpdevice)); |
fc4d0a69 BJ |
106 | } |
107 | ||
108 | /*ARGSUSED*/ | |
109 | vpattach(ui) | |
110 | struct uba_device *ui; | |
111 | { | |
112 | ||
113 | ui->ui_addr -= 010; | |
114 | ui->ui_physaddr -= 010; | |
115 | } | |
116 | ||
117 | vpopen(dev) | |
118 | dev_t dev; | |
2a75a0e9 | 119 | { |
fc4d0a69 BJ |
120 | register struct vp_softc *sc; |
121 | register struct vpdevice *vpaddr; | |
122 | register struct uba_device *ui; | |
2a75a0e9 | 123 | |
fc4d0a69 BJ |
124 | if (VPUNIT(dev) >= NVP || |
125 | ((sc = &vp_softc[minor(dev)])->sc_state&VPSC_OPEN) || | |
7da157da BJ |
126 | (ui = vpdinfo[VPUNIT(dev)]) == 0 || ui->ui_alive == 0) |
127 | return (ENXIO); | |
fc4d0a69 BJ |
128 | vpaddr = (struct vpdevice *)ui->ui_addr; |
129 | sc->sc_state = VPSC_OPEN|VPSC_PRINT | VP_CLRCOM|VP_RESET; | |
130 | sc->sc_count = 0; | |
131 | vpaddr->prcsr = VP_IENABLE|VP_DTCINTR; | |
132 | vptimo(dev); | |
133 | while (sc->sc_state & VPSC_CMNDS) { | |
81263dba | 134 | (void) spl4(); |
fc4d0a69 BJ |
135 | if (vpwait(dev)) { |
136 | vpclose(dev); | |
7da157da | 137 | return (EIO); |
2a75a0e9 | 138 | } |
fc4d0a69 | 139 | vpstart(dev); |
81263dba | 140 | (void) spl0(); |
2a75a0e9 | 141 | } |
7da157da | 142 | return (0); |
2a75a0e9 BJ |
143 | } |
144 | ||
145 | vpstrategy(bp) | |
146 | register struct buf *bp; | |
147 | { | |
148 | register int e; | |
fc4d0a69 BJ |
149 | register struct vp_softc *sc = &vp_softc[VPUNIT(bp->b_dev)]; |
150 | register struct uba_device *ui = vpdinfo[VPUNIT(bp->b_dev)]; | |
151 | register struct vpdevice *vpaddr = (struct vpdevice *)ui->ui_addr; | |
2a75a0e9 | 152 | |
81263dba | 153 | (void) spl4(); |
fc4d0a69 BJ |
154 | while (sc->sc_state & VPSC_BUSY) |
155 | sleep((caddr_t)sc, VPPRI); | |
156 | sc->sc_state |= VPSC_BUSY; | |
157 | sc->sc_bp = bp; | |
158 | sc->sc_ubinfo = ubasetup(ui->ui_ubanum, bp, UBA_NEEDBDP); | |
159 | if (e = vpwait(bp->b_dev)) | |
2a75a0e9 | 160 | goto brkout; |
fc4d0a69 BJ |
161 | sc->sc_count = bp->b_bcount; |
162 | vpstart(bp->b_dev); | |
163 | while (((sc->sc_state&VPSC_PLOT) ? vpaddr->plcsr : vpaddr->prcsr) & VP_DMAACT) | |
164 | sleep((caddr_t)sc, VPPRI); | |
165 | sc->sc_count = 0; | |
166 | if ((sc->sc_state&VPSC_MODE) == VPSC_SPP) | |
167 | sc->sc_state = (sc->sc_state &~ VPSC_MODE) | VPSC_PLOT; | |
81263dba | 168 | (void) spl0(); |
2a75a0e9 | 169 | brkout: |
fc4d0a69 BJ |
170 | ubarelse(ui->ui_ubanum, &sc->sc_ubinfo); |
171 | sc->sc_state &= ~VPSC_BUSY; | |
172 | sc->sc_bp = 0; | |
2a75a0e9 | 173 | if (e) |
b91c756d BJ |
174 | bp->b_flags |= B_ERROR; |
175 | iodone(bp); | |
fc4d0a69 | 176 | wakeup((caddr_t)sc); |
2a75a0e9 BJ |
177 | } |
178 | ||
179 | int vpblock = 16384; | |
180 | ||
181 | unsigned | |
182 | minvpph(bp) | |
fc4d0a69 | 183 | struct buf *bp; |
2a75a0e9 BJ |
184 | { |
185 | ||
186 | if (bp->b_bcount > vpblock) | |
187 | bp->b_bcount = vpblock; | |
188 | } | |
189 | ||
190 | /*ARGSUSED*/ | |
0cd5eac7 | 191 | vpwrite(dev, uio) |
fc4d0a69 | 192 | dev_t dev; |
0cd5eac7 | 193 | struct uio *uio; |
2a75a0e9 BJ |
194 | { |
195 | ||
002227dd | 196 | if (VPUNIT(dev) >= NVP) |
0cd5eac7 BJ |
197 | return (ENXIO); |
198 | return (physio(vpstrategy, &rvpbuf[VPUNIT(dev)], dev, B_WRITE, | |
199 | minvpph, uio)); | |
2a75a0e9 BJ |
200 | } |
201 | ||
fc4d0a69 BJ |
202 | vpwait(dev) |
203 | dev_t dev; | |
2a75a0e9 | 204 | { |
fc4d0a69 BJ |
205 | register struct vpdevice *vpaddr = |
206 | (struct vpdevice *)vpdinfo[VPUNIT(dev)]->ui_addr; | |
207 | register struct vp_softc *sc = &vp_softc[VPUNIT(dev)]; | |
208 | register int e; | |
2a75a0e9 | 209 | |
fc4d0a69 BJ |
210 | for (;;) { |
211 | e = (sc->sc_state & VPSC_PLOT) ? vpaddr->plcsr : vpaddr->prcsr; | |
212 | if (e & (VP_READY|VP_ERROR)) | |
213 | break; | |
214 | sleep((caddr_t)sc, VPPRI); | |
215 | } | |
b91c756d | 216 | /* I WISH I COULD TELL WHETHER AN ERROR INDICATED AN NPR TIMEOUT */ |
fc4d0a69 | 217 | return (e & VP_ERROR); |
2a75a0e9 BJ |
218 | } |
219 | ||
fc4d0a69 BJ |
220 | vpstart(dev) |
221 | dev_t; | |
2a75a0e9 | 222 | { |
fc4d0a69 BJ |
223 | register struct vp_softc *sc = &vp_softc[VPUNIT(dev)]; |
224 | register struct vpdevice *vpaddr = | |
225 | (struct vpdevice *)vpdinfo[VPUNIT(dev)]->ui_addr; | |
226 | short bit; | |
227 | ||
228 | if (sc->sc_count) { | |
229 | vpaddr->pbaddr = sc->sc_ubinfo; | |
230 | vpaddr->pbxaddr = (sc->sc_ubinfo>>12)&0x30; | |
231 | if (sc->sc_state & (VPSC_PRINT|VPSC_SPP)) | |
232 | vpaddr->prbcr = sc->sc_count; | |
2a75a0e9 | 233 | else |
fc4d0a69 | 234 | vpaddr->plbcr = sc->sc_count; |
2a75a0e9 BJ |
235 | return; |
236 | } | |
237 | for (bit = 1; bit != 0; bit <<= 1) | |
fc4d0a69 BJ |
238 | if (sc->sc_state&bit&VPSC_CMNDS) { |
239 | vpaddr->plcsr |= bit; | |
240 | sc->sc_state &= ~bit; | |
2a75a0e9 BJ |
241 | return; |
242 | } | |
243 | } | |
244 | ||
245 | /*ARGSUSED*/ | |
246 | vpioctl(dev, cmd, addr, flag) | |
fc4d0a69 BJ |
247 | dev_t dev; |
248 | int cmd; | |
2a75a0e9 | 249 | register caddr_t addr; |
fc4d0a69 | 250 | int flag; |
2a75a0e9 BJ |
251 | { |
252 | register int m; | |
fc4d0a69 BJ |
253 | register struct vp_softc *sc = &vp_softc[VPUNIT(dev)]; |
254 | register struct vpdevice *vpaddr = | |
255 | (struct vpdevice *)vpdinfo[VPUNIT(dev)]->ui_addr; | |
2a75a0e9 BJ |
256 | |
257 | switch (cmd) { | |
258 | ||
fc4d0a69 BJ |
259 | case VGETSTATE: |
260 | (void) suword(addr, sc->sc_state); | |
7da157da | 261 | break; |
2a75a0e9 | 262 | |
fc4d0a69 | 263 | case VSETSTATE: |
2a75a0e9 | 264 | m = fuword(addr); |
7da157da BJ |
265 | if (m == -1) |
266 | return (EFAULT); | |
fc4d0a69 BJ |
267 | sc->sc_state = |
268 | (sc->sc_state & ~VPSC_MODE) | (m&(VPSC_MODE|VPSC_CMNDS)); | |
2a75a0e9 BJ |
269 | break; |
270 | ||
271 | default: | |
7da157da | 272 | return (ENOTTY); |
2a75a0e9 | 273 | } |
81263dba | 274 | (void) spl4(); |
fc4d0a69 BJ |
275 | (void) vpwait(dev); |
276 | if (sc->sc_state&VPSC_SPP) | |
277 | vpaddr->plcsr |= VP_SPP; | |
2a75a0e9 | 278 | else |
fc4d0a69 BJ |
279 | vpaddr->plcsr &= ~VP_SPP; |
280 | sc->sc_count = 0; | |
281 | while (sc->sc_state & VPSC_CMNDS) { | |
282 | (void) vpwait(dev); | |
283 | vpstart(dev); | |
2a75a0e9 | 284 | } |
81263dba | 285 | (void) spl0(); |
7da157da | 286 | return (0); |
2a75a0e9 BJ |
287 | } |
288 | ||
fc4d0a69 BJ |
289 | vptimo(dev) |
290 | dev_t dev; | |
2a75a0e9 | 291 | { |
fc4d0a69 | 292 | register struct vp_softc *sc = &vp_softc[VPUNIT(dev)]; |
2a75a0e9 | 293 | |
fc4d0a69 BJ |
294 | if (sc->sc_state&VPSC_OPEN) |
295 | timeout(vptimo, (caddr_t)dev, hz/10); | |
296 | vpintr(dev); | |
2a75a0e9 BJ |
297 | } |
298 | ||
299 | /*ARGSUSED*/ | |
300 | vpintr(dev) | |
fc4d0a69 | 301 | dev_t dev; |
2a75a0e9 | 302 | { |
fc4d0a69 | 303 | register struct vp_softc *sc = &vp_softc[VPUNIT(dev)]; |
2a75a0e9 | 304 | |
fc4d0a69 | 305 | wakeup((caddr_t)sc); |
2a75a0e9 BJ |
306 | } |
307 | ||
fc4d0a69 BJ |
308 | vpclose(dev) |
309 | dev_t dev; | |
2a75a0e9 | 310 | { |
fc4d0a69 BJ |
311 | register struct vp_softc *sc = &vp_softc[VPUNIT(dev)]; |
312 | register struct vpdevice *vpaddr = | |
313 | (struct vpdevice *)vpdinfo[VPUNIT(dev)]->ui_addr; | |
2a75a0e9 | 314 | |
fc4d0a69 BJ |
315 | sc->sc_state = 0; |
316 | sc->sc_count = 0; | |
317 | vpaddr->plcsr = 0; | |
2a75a0e9 | 318 | } |
d62630e9 | 319 | |
fc4d0a69 BJ |
320 | vpreset(uban) |
321 | int uban; | |
d62630e9 | 322 | { |
fc4d0a69 BJ |
323 | register int vp11; |
324 | register struct uba_device *ui; | |
325 | register struct vp_softc *sc = vp_softc; | |
326 | register struct vpdevice *vpaddr; | |
327 | ||
328 | for (vp11 = 0; vp11 < NVP; vp11++, sc++) { | |
329 | if ((ui = vpdinfo[vp11]) == 0 || ui->ui_alive == 0 || | |
330 | ui->ui_ubanum != uban || (sc->sc_state&VPSC_OPEN) == 0) | |
331 | continue; | |
332 | printf(" vp%d", vp11); | |
333 | vpaddr = (struct vpdevice *)ui->ui_addr; | |
334 | vpaddr->prcsr = VP_IENABLE|VP_DTCINTR; | |
335 | if ((sc->sc_state & VPSC_BUSY) == 0) | |
336 | continue; | |
7da157da | 337 | sc->sc_ubinfo = 0; |
fc4d0a69 BJ |
338 | sc->sc_count = sc->sc_bp->b_bcount; |
339 | vpstart(sc->sc_bp->b_dev); | |
d62630e9 | 340 | } |
d62630e9 | 341 | } |
941b74fe SL |
342 | |
343 | vpselect() | |
344 | { | |
345 | return (1); | |
346 | } | |
a5cc519e | 347 | #endif |