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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 | /* * split into mid and low-level for better support of different hardware * by Joerg Dorchain (dorchain@mpi-sb.mpg.de) * * Amiga printer device by Michael Rausch (linux@uni-koblenz.de); * Atari support added by Andreas Schwab (schwab@ls5.informatik.uni-dortmund.de); * based upon work from * * Copyright (C) 1992 by Jim Weigand and Linus Torvalds * Copyright (C) 1992,1993 by Michael K. Johnson * - Thanks much to Gunter Windau for pointing out to me where the error * checking ought to be. * Copyright (C) 1993 by Nigel Gamble (added interrupt code) */ #include <linux/module.h> #include <linux/config.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/sched.h> #include <linux/init.h> #include <asm/irq.h> #include <asm/setup.h> #ifdef CONFIG_AMIGA #include <asm/amigahw.h> #include <asm/amigaints.h> #endif #ifdef CONFIG_ATARI #include <linux/delay.h> #include <asm/atarihw.h> #include <asm/atariints.h> #endif #ifdef CONFIG_MVME16x #include <asm/mvme16xhw.h> #endif #ifdef CONFIG_BVME6000 #include<asm/bvme6000hw.h> #endif #include <linux/lp_intern.h> static int minor = -1; MODULE_PARM(minor,"i"); static void lp_int_out(int, int); static int lp_int_busy(int); static int lp_int_pout(int); static int lp_int_online(int); static void lp_int_out (int c, int dev) { switch (m68k_machtype) { #ifdef CONFIG_AMIGA case MACH_AMIGA: { int wait = 0; while (wait != lp_table[dev]->wait) wait++; ciaa.prb = c; } break; #endif #ifdef CONFIG_ATARI case MACH_ATARI: { int wait = 0; sound_ym.rd_data_reg_sel = 15; sound_ym.wd_data = c; sound_ym.rd_data_reg_sel = 14; while (wait != lp_table[dev]->wait) wait++; sound_ym.wd_data = sound_ym.rd_data_reg_sel & ~(1 << 5); while (wait) wait--; sound_ym.wd_data = sound_ym.rd_data_reg_sel | (1 << 5); break; } #endif #ifdef CONFIG_MVME16x case MACH_MVME16x: { int wait = 0; while (wait != lp_table[dev]->wait) wait++; mvmelp.data = c; break; } #endif #ifdef CONFIG_BVME6000 case MACH_BVME6000: { int wait = 0; while (wait != lp_table[dev]->wait) wait++; bvmepit.padr = c; bvmepit.pacr |= 0x02; break; } #endif } } static int lp_int_busy (int dev) { switch (m68k_machtype) { #ifdef CONFIG_AMIGA case MACH_AMIGA: return ciab.pra & 1; #endif #ifdef CONFIG_ATARI case MACH_ATARI: return mfp.par_dt_reg & 1; #endif #ifdef CONFIG_MVME16x case MACH_MVME16x: return mvmelp.isr & 1; #endif #ifdef CONFIG_BVME6000 case MACH_BVME6000: return 0 /* !(bvmepit.psr & 0x40) */ ; #endif default: return 0; } } static int lp_int_pout (int dev) { switch (m68k_machtype) { #ifdef CONFIG_AMIGA case MACH_AMIGA: return ciab.pra & 2; #endif #ifdef CONFIG_ATARI case MACH_ATARI: return 0; #endif #ifdef CONFIG_MVME16x case MACH_MVME16x: return mvmelp.isr & 2; #endif #ifdef CONFIG_BVME6000 case MACH_BVME6000: return 0; #endif default: return 0; } } static int lp_int_online (int dev) { switch (m68k_machtype) { #ifdef CONFIG_AMIGA case MACH_AMIGA: return ciab.pra & 4; #endif #ifdef CONFIG_ATARI case MACH_ATARI: return !(mfp.par_dt_reg & 1); #endif #ifdef CONFIG_MVME16x case MACH_MVME16x: return mvmelp.isr & 4; #endif #ifdef CONFIG_BVME6000 case MACH_BVME6000: return 1; #endif default: return 0; } } static void lp_int_interrupt(int irq, void *data, struct pt_regs *fp) { #ifdef CONFIG_MVME16x if (MACH_IS_MVME16x) mvmelp.ack_icr |= 0x08; #endif #ifdef CONFIG_BVME6000 if (MACH_IS_BVME6000) bvmepit.pacr &= ~0x02; #endif lp_interrupt(minor); } static int lp_int_open(int dev) { MOD_INC_USE_COUNT; return 0; } static void lp_int_release(int dev) { MOD_DEC_USE_COUNT; } static struct lp_struct tab = { "Builtin parallel port", /* name */ 0, /* irq */ lp_int_out, lp_int_busy, lp_int_pout, lp_int_online, 0, NULL, /* ioctl */ lp_int_open, lp_int_release, LP_EXIST, LP_INIT_CHAR, LP_INIT_TIME, LP_INIT_WAIT, NULL, NULL, }; __initfunc(int lp_internal_init(void)) { #ifdef CONFIG_AMIGA if (MACH_IS_AMIGA && AMIGAHW_PRESENT(AMI_PARALLEL)) { ciaa.ddrb = 0xff; ciab.ddra &= 0xf8; if (lp_irq) tab.irq = request_irq(IRQ_AMIGA_CIAA_FLG, lp_int_interrupt, 0, "builtin printer port", lp_int_interrupt); tab.base = (void *) &ciaa.prb; /* dummy, not used */ tab.type = LP_AMIGA; } #endif #ifdef CONFIG_ATARI if (MACH_IS_ATARI) { unsigned long flags; save_flags(flags); cli(); sound_ym.rd_data_reg_sel = 7; sound_ym.wd_data = (sound_ym.rd_data_reg_sel & 0x3f) | 0xc0; restore_flags(flags); if (lp_irq) tab.irq = request_irq(IRQ_MFP_BUSY, lp_int_interrupt, IRQ_TYPE_SLOW, "builtin printer port", lp_int_interrupt); tab.base = (void *) &sound_ym.wd_data; /* dummy, not used */ tab.type = LP_ATARI; } #endif #ifdef CONFIG_MAC if (MACH_IS_MAC) return -ENODEV; #endif #ifdef CONFIG_MVME16x if (MACH_IS_MVME16x) { unsigned long flags; if (!(mvme16x_config & MVME16x_CONFIG_GOT_LP)) return -ENODEV; save_flags(flags); cli(); mvmelp.ack_icr = 0x08; mvmelp.flt_icr = 0x08; mvmelp.sel_icr = 0x08; mvmelp.pe_icr = 0x08; mvmelp.bsy_icr = 0x08; mvmelp.cr = 0x10; mvmelp.ack_icr = 0xd9; /* Int on trailing edge of ACK */ restore_flags(flags); if (lp_irq) tab.irq = request_irq(MVME167_IRQ_PRN, lp_int_interrupt, 0, "builtin printer port", lp_int_interrupt); tab.base = (void *)&mvmelp; /* dummy, not used */ tab.type = LP_MVME167; } #endif #ifdef CONFIG_BVME6000 if (MACH_IS_BVME6000) { unsigned long flags; save_flags(flags); cli(); bvmepit.pgcr = 0x0f; bvmepit.psrr = 0x18; bvmepit.paddr = 0xff; bvmepit.pcdr = (bvmepit.pcdr & 0xfc) | 0x02; bvmepit.pcddr |= 0x03; bvmepit.pacr = 0x78; bvmepit.pbcr = 0x00; bvmepit.pivr = BVME_IRQ_PRN; bvmepit.pgcr = 0x1f; restore_flags(flags); if (lp_irq) tab.irq = request_irq(BVME_IRQ_PRN, lp_int_interrupt, 0, "builtin printer port", lp_int_interrupt); tab.base = (void *)&bvmepit; /* dummy, not used */ tab.type = LP_BVME6000; } #endif if ((minor = register_parallel(&tab, minor)) < 0) { printk("builtin lp init: cant get a minor\n"); if (lp_irq) { #ifdef CONFIG_AMIGA if (MACH_IS_AMIGA) free_irq(IRQ_AMIGA_CIAA_FLG, lp_int_interrupt); #endif #ifdef CONFIG_ATARI if (MACH_IS_ATARI) free_irq(IRQ_MFP_BUSY, lp_int_interrupt); #endif #ifdef CONFIG_MVME16x if (MACH_IS_MVME16x) free_irq(MVME167_IRQ_PRN, lp_int_interrupt); #endif #ifdef CONFIG_BVME6000 if (MACH_IS_BVME6000) free_irq(BVME_IRQ_PRN, lp_int_interrupt); #endif } return -ENODEV; } return 0; } #ifdef MODULE int init_module(void) { return lp_internal_init(); } void cleanup_module(void) { if (lp_irq) { #ifdef CONFIG_AMIGA if (MACH_IS_AMIGA) free_irq(IRQ_AMIGA_CIAA_FLG, lp_int_interrupt); #endif #ifdef CONFIG_ATARI if (MACH_IS_ATARI) free_irq(IRQ_MFP_BUSY, lp_int_interrupt); #endif #ifdef CONFIG_MVME16x if (MACH_IS_MVME16x) free_irq(MVME167_IRQ_PRN, lp_int_interrupt); #endif #ifdef CONFIG_BVME6000 if (MACH_IS_BVME6000) free_irq(BVME_IRQ_PRN, lp_int_interrupt); #endif } unregister_parallel(minor); } #endif |