config.c 20 KB

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  1. /*
  2. * linux/arch/m68k/amiga/config.c
  3. *
  4. * Copyright (C) 1993 Hamish Macdonald
  5. *
  6. * This file is subject to the terms and conditions of the GNU General Public
  7. * License. See the file COPYING in the main directory of this archive
  8. * for more details.
  9. */
  10. /*
  11. * Miscellaneous Amiga stuff
  12. */
  13. #include <linux/types.h>
  14. #include <linux/kernel.h>
  15. #include <linux/mm.h>
  16. #include <linux/seq_file.h>
  17. #include <linux/tty.h>
  18. #include <linux/clocksource.h>
  19. #include <linux/console.h>
  20. #include <linux/rtc.h>
  21. #include <linux/init.h>
  22. #include <linux/vt_kern.h>
  23. #include <linux/delay.h>
  24. #include <linux/interrupt.h>
  25. #include <linux/zorro.h>
  26. #include <linux/module.h>
  27. #include <linux/keyboard.h>
  28. #include <asm/bootinfo.h>
  29. #include <asm/bootinfo-amiga.h>
  30. #include <asm/byteorder.h>
  31. #include <asm/setup.h>
  32. #include <asm/amigahw.h>
  33. #include <asm/amigaints.h>
  34. #include <asm/irq.h>
  35. #include <asm/machdep.h>
  36. #include <asm/io.h>
  37. #include <asm/config.h>
  38. static unsigned long amiga_model;
  39. unsigned long amiga_eclock;
  40. EXPORT_SYMBOL(amiga_eclock);
  41. unsigned long amiga_colorclock;
  42. EXPORT_SYMBOL(amiga_colorclock);
  43. unsigned long amiga_chipset;
  44. EXPORT_SYMBOL(amiga_chipset);
  45. unsigned char amiga_vblank;
  46. EXPORT_SYMBOL(amiga_vblank);
  47. static unsigned char amiga_psfreq;
  48. struct amiga_hw_present amiga_hw_present;
  49. EXPORT_SYMBOL(amiga_hw_present);
  50. static char s_a500[] __initdata = "A500";
  51. static char s_a500p[] __initdata = "A500+";
  52. static char s_a600[] __initdata = "A600";
  53. static char s_a1000[] __initdata = "A1000";
  54. static char s_a1200[] __initdata = "A1200";
  55. static char s_a2000[] __initdata = "A2000";
  56. static char s_a2500[] __initdata = "A2500";
  57. static char s_a3000[] __initdata = "A3000";
  58. static char s_a3000t[] __initdata = "A3000T";
  59. static char s_a3000p[] __initdata = "A3000+";
  60. static char s_a4000[] __initdata = "A4000";
  61. static char s_a4000t[] __initdata = "A4000T";
  62. static char s_cdtv[] __initdata = "CDTV";
  63. static char s_cd32[] __initdata = "CD32";
  64. static char s_draco[] __initdata = "Draco";
  65. static char *amiga_models[] __initdata = {
  66. [AMI_500-AMI_500] = s_a500,
  67. [AMI_500PLUS-AMI_500] = s_a500p,
  68. [AMI_600-AMI_500] = s_a600,
  69. [AMI_1000-AMI_500] = s_a1000,
  70. [AMI_1200-AMI_500] = s_a1200,
  71. [AMI_2000-AMI_500] = s_a2000,
  72. [AMI_2500-AMI_500] = s_a2500,
  73. [AMI_3000-AMI_500] = s_a3000,
  74. [AMI_3000T-AMI_500] = s_a3000t,
  75. [AMI_3000PLUS-AMI_500] = s_a3000p,
  76. [AMI_4000-AMI_500] = s_a4000,
  77. [AMI_4000T-AMI_500] = s_a4000t,
  78. [AMI_CDTV-AMI_500] = s_cdtv,
  79. [AMI_CD32-AMI_500] = s_cd32,
  80. [AMI_DRACO-AMI_500] = s_draco,
  81. };
  82. static char amiga_model_name[13] = "Amiga ";
  83. static void amiga_sched_init(void);
  84. static void amiga_get_model(char *model);
  85. static void amiga_get_hardware_list(struct seq_file *m);
  86. extern void amiga_mksound(unsigned int count, unsigned int ticks);
  87. static void amiga_reset(void);
  88. extern void amiga_init_sound(void);
  89. static void amiga_mem_console_write(struct console *co, const char *b,
  90. unsigned int count);
  91. #ifdef CONFIG_HEARTBEAT
  92. static void amiga_heartbeat(int on);
  93. #endif
  94. static struct console amiga_console_driver = {
  95. .name = "debug",
  96. .flags = CON_PRINTBUFFER,
  97. .index = -1,
  98. };
  99. /*
  100. * Motherboard Resources present in all Amiga models
  101. */
  102. static struct {
  103. struct resource _ciab, _ciaa, _custom, _kickstart;
  104. } mb_resources = {
  105. ._ciab = {
  106. .name = "CIA B", .start = 0x00bfd000, .end = 0x00bfdfff
  107. },
  108. ._ciaa = {
  109. .name = "CIA A", .start = 0x00bfe000, .end = 0x00bfefff
  110. },
  111. ._custom = {
  112. .name = "Custom I/O", .start = 0x00dff000, .end = 0x00dfffff
  113. },
  114. ._kickstart = {
  115. .name = "Kickstart ROM", .start = 0x00f80000, .end = 0x00ffffff
  116. }
  117. };
  118. static struct resource ram_resource[NUM_MEMINFO];
  119. /*
  120. * Parse an Amiga-specific record in the bootinfo
  121. */
  122. int __init amiga_parse_bootinfo(const struct bi_record *record)
  123. {
  124. int unknown = 0;
  125. const void *data = record->data;
  126. switch (be16_to_cpu(record->tag)) {
  127. case BI_AMIGA_MODEL:
  128. amiga_model = be32_to_cpup(data);
  129. break;
  130. case BI_AMIGA_ECLOCK:
  131. amiga_eclock = be32_to_cpup(data);
  132. break;
  133. case BI_AMIGA_CHIPSET:
  134. amiga_chipset = be32_to_cpup(data);
  135. break;
  136. case BI_AMIGA_CHIP_SIZE:
  137. amiga_chip_size = be32_to_cpup(data);
  138. break;
  139. case BI_AMIGA_VBLANK:
  140. amiga_vblank = *(const __u8 *)data;
  141. break;
  142. case BI_AMIGA_PSFREQ:
  143. amiga_psfreq = *(const __u8 *)data;
  144. break;
  145. case BI_AMIGA_AUTOCON:
  146. #ifdef CONFIG_ZORRO
  147. if (zorro_num_autocon < ZORRO_NUM_AUTO) {
  148. const struct ConfigDev *cd = data;
  149. struct zorro_dev_init *dev = &zorro_autocon_init[zorro_num_autocon++];
  150. dev->rom = cd->cd_Rom;
  151. dev->slotaddr = be16_to_cpu(cd->cd_SlotAddr);
  152. dev->slotsize = be16_to_cpu(cd->cd_SlotSize);
  153. dev->boardaddr = be32_to_cpu(cd->cd_BoardAddr);
  154. dev->boardsize = be32_to_cpu(cd->cd_BoardSize);
  155. } else
  156. pr_warn("amiga_parse_bootinfo: too many AutoConfig devices\n");
  157. #endif /* CONFIG_ZORRO */
  158. break;
  159. case BI_AMIGA_SERPER:
  160. /* serial port period: ignored here */
  161. break;
  162. default:
  163. unknown = 1;
  164. }
  165. return unknown;
  166. }
  167. /*
  168. * Identify builtin hardware
  169. */
  170. static void __init amiga_identify(void)
  171. {
  172. /* Fill in some default values, if necessary */
  173. if (amiga_eclock == 0)
  174. amiga_eclock = 709379;
  175. memset(&amiga_hw_present, 0, sizeof(amiga_hw_present));
  176. pr_info("Amiga hardware found: ");
  177. if (amiga_model >= AMI_500 && amiga_model <= AMI_DRACO) {
  178. pr_cont("[%s] ", amiga_models[amiga_model-AMI_500]);
  179. strcat(amiga_model_name, amiga_models[amiga_model-AMI_500]);
  180. }
  181. switch (amiga_model) {
  182. case AMI_UNKNOWN:
  183. break;
  184. case AMI_600:
  185. case AMI_1200:
  186. AMIGAHW_SET(A1200_IDE);
  187. AMIGAHW_SET(PCMCIA);
  188. fallthrough;
  189. case AMI_500:
  190. case AMI_500PLUS:
  191. case AMI_1000:
  192. case AMI_2000:
  193. case AMI_2500:
  194. AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
  195. break;
  196. case AMI_3000:
  197. case AMI_3000T:
  198. AMIGAHW_SET(AMBER_FF);
  199. AMIGAHW_SET(MAGIC_REKICK);
  200. fallthrough;
  201. case AMI_3000PLUS:
  202. AMIGAHW_SET(A3000_SCSI);
  203. AMIGAHW_SET(A3000_CLK);
  204. AMIGAHW_SET(ZORRO3);
  205. break;
  206. case AMI_4000T:
  207. AMIGAHW_SET(A4000_SCSI);
  208. fallthrough;
  209. case AMI_4000:
  210. AMIGAHW_SET(A4000_IDE);
  211. AMIGAHW_SET(A3000_CLK);
  212. AMIGAHW_SET(ZORRO3);
  213. break;
  214. case AMI_CDTV:
  215. case AMI_CD32:
  216. AMIGAHW_SET(CD_ROM);
  217. AMIGAHW_SET(A2000_CLK); /* Is this correct? */
  218. break;
  219. case AMI_DRACO:
  220. panic("No support for Draco yet");
  221. default:
  222. panic("Unknown Amiga Model");
  223. }
  224. AMIGAHW_SET(AMI_VIDEO);
  225. AMIGAHW_SET(AMI_BLITTER);
  226. AMIGAHW_SET(AMI_AUDIO);
  227. AMIGAHW_SET(AMI_FLOPPY);
  228. AMIGAHW_SET(AMI_KEYBOARD);
  229. AMIGAHW_SET(AMI_MOUSE);
  230. AMIGAHW_SET(AMI_SERIAL);
  231. AMIGAHW_SET(AMI_PARALLEL);
  232. AMIGAHW_SET(CHIP_RAM);
  233. AMIGAHW_SET(PAULA);
  234. switch (amiga_chipset) {
  235. case CS_OCS:
  236. case CS_ECS:
  237. case CS_AGA:
  238. switch (amiga_custom.deniseid & 0xf) {
  239. case 0x0c:
  240. AMIGAHW_SET(DENISE_HR);
  241. break;
  242. case 0x08:
  243. AMIGAHW_SET(LISA);
  244. break;
  245. default:
  246. AMIGAHW_SET(DENISE);
  247. break;
  248. }
  249. break;
  250. }
  251. switch ((amiga_custom.vposr>>8) & 0x7f) {
  252. case 0x00:
  253. AMIGAHW_SET(AGNUS_PAL);
  254. break;
  255. case 0x10:
  256. AMIGAHW_SET(AGNUS_NTSC);
  257. break;
  258. case 0x20:
  259. case 0x21:
  260. AMIGAHW_SET(AGNUS_HR_PAL);
  261. break;
  262. case 0x30:
  263. case 0x31:
  264. AMIGAHW_SET(AGNUS_HR_NTSC);
  265. break;
  266. case 0x22:
  267. case 0x23:
  268. AMIGAHW_SET(ALICE_PAL);
  269. break;
  270. case 0x32:
  271. case 0x33:
  272. AMIGAHW_SET(ALICE_NTSC);
  273. break;
  274. }
  275. AMIGAHW_SET(ZORRO);
  276. #define AMIGAHW_ANNOUNCE(name, str) \
  277. if (AMIGAHW_PRESENT(name)) \
  278. pr_cont(str)
  279. AMIGAHW_ANNOUNCE(AMI_VIDEO, "VIDEO ");
  280. AMIGAHW_ANNOUNCE(AMI_BLITTER, "BLITTER ");
  281. AMIGAHW_ANNOUNCE(AMBER_FF, "AMBER_FF ");
  282. AMIGAHW_ANNOUNCE(AMI_AUDIO, "AUDIO ");
  283. AMIGAHW_ANNOUNCE(AMI_FLOPPY, "FLOPPY ");
  284. AMIGAHW_ANNOUNCE(A3000_SCSI, "A3000_SCSI ");
  285. AMIGAHW_ANNOUNCE(A4000_SCSI, "A4000_SCSI ");
  286. AMIGAHW_ANNOUNCE(A1200_IDE, "A1200_IDE ");
  287. AMIGAHW_ANNOUNCE(A4000_IDE, "A4000_IDE ");
  288. AMIGAHW_ANNOUNCE(CD_ROM, "CD_ROM ");
  289. AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "KEYBOARD ");
  290. AMIGAHW_ANNOUNCE(AMI_MOUSE, "MOUSE ");
  291. AMIGAHW_ANNOUNCE(AMI_SERIAL, "SERIAL ");
  292. AMIGAHW_ANNOUNCE(AMI_PARALLEL, "PARALLEL ");
  293. AMIGAHW_ANNOUNCE(A2000_CLK, "A2000_CLK ");
  294. AMIGAHW_ANNOUNCE(A3000_CLK, "A3000_CLK ");
  295. AMIGAHW_ANNOUNCE(CHIP_RAM, "CHIP_RAM ");
  296. AMIGAHW_ANNOUNCE(PAULA, "PAULA ");
  297. AMIGAHW_ANNOUNCE(DENISE, "DENISE ");
  298. AMIGAHW_ANNOUNCE(DENISE_HR, "DENISE_HR ");
  299. AMIGAHW_ANNOUNCE(LISA, "LISA ");
  300. AMIGAHW_ANNOUNCE(AGNUS_PAL, "AGNUS_PAL ");
  301. AMIGAHW_ANNOUNCE(AGNUS_NTSC, "AGNUS_NTSC ");
  302. AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "AGNUS_HR_PAL ");
  303. AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "AGNUS_HR_NTSC ");
  304. AMIGAHW_ANNOUNCE(ALICE_PAL, "ALICE_PAL ");
  305. AMIGAHW_ANNOUNCE(ALICE_NTSC, "ALICE_NTSC ");
  306. AMIGAHW_ANNOUNCE(MAGIC_REKICK, "MAGIC_REKICK ");
  307. AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA ");
  308. if (AMIGAHW_PRESENT(ZORRO))
  309. pr_cont("ZORRO%s ", AMIGAHW_PRESENT(ZORRO3) ? "3" : "");
  310. pr_cont("\n");
  311. #undef AMIGAHW_ANNOUNCE
  312. }
  313. static unsigned long amiga_random_get_entropy(void)
  314. {
  315. /* VPOSR/VHPOSR provide at least 17 bits of data changing at 1.79 MHz */
  316. return *(unsigned long *)&amiga_custom.vposr;
  317. }
  318. /*
  319. * Setup the Amiga configuration info
  320. */
  321. void __init config_amiga(void)
  322. {
  323. int i;
  324. amiga_identify();
  325. /* Yuk, we don't have PCI memory */
  326. iomem_resource.name = "Memory";
  327. for (i = 0; i < 4; i++)
  328. request_resource(&iomem_resource, &((struct resource *)&mb_resources)[i]);
  329. mach_sched_init = amiga_sched_init;
  330. mach_init_IRQ = amiga_init_IRQ;
  331. mach_get_model = amiga_get_model;
  332. mach_get_hardware_list = amiga_get_hardware_list;
  333. mach_reset = amiga_reset;
  334. #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
  335. mach_beep = amiga_mksound;
  336. #endif
  337. #ifdef CONFIG_HEARTBEAT
  338. mach_heartbeat = amiga_heartbeat;
  339. #endif
  340. mach_random_get_entropy = amiga_random_get_entropy;
  341. /* Fill in the clock value (based on the 700 kHz E-Clock) */
  342. amiga_colorclock = 5*amiga_eclock; /* 3.5 MHz */
  343. /* clear all DMA bits */
  344. amiga_custom.dmacon = DMAF_ALL;
  345. /* ensure that the DMA master bit is set */
  346. amiga_custom.dmacon = DMAF_SETCLR | DMAF_MASTER;
  347. /* don't use Z2 RAM as system memory on Z3 capable machines */
  348. if (AMIGAHW_PRESENT(ZORRO3)) {
  349. int i, j;
  350. u32 disabled_z2mem = 0;
  351. for (i = 0; i < m68k_num_memory; i++) {
  352. if (m68k_memory[i].addr < 16*1024*1024) {
  353. if (i == 0) {
  354. /* don't cut off the branch we're sitting on */
  355. pr_warn("Warning: kernel runs in Zorro II memory\n");
  356. continue;
  357. }
  358. disabled_z2mem += m68k_memory[i].size;
  359. m68k_num_memory--;
  360. for (j = i; j < m68k_num_memory; j++)
  361. m68k_memory[j] = m68k_memory[j+1];
  362. i--;
  363. }
  364. }
  365. if (disabled_z2mem)
  366. pr_info("%dK of Zorro II memory will not be used as system memory\n",
  367. disabled_z2mem>>10);
  368. }
  369. /* request all RAM */
  370. for (i = 0; i < m68k_num_memory; i++) {
  371. ram_resource[i].name =
  372. (m68k_memory[i].addr >= 0x01000000) ? "32-bit Fast RAM" :
  373. (m68k_memory[i].addr < 0x00c00000) ? "16-bit Fast RAM" :
  374. "16-bit Slow RAM";
  375. ram_resource[i].start = m68k_memory[i].addr;
  376. ram_resource[i].end = m68k_memory[i].addr+m68k_memory[i].size-1;
  377. request_resource(&iomem_resource, &ram_resource[i]);
  378. }
  379. /* initialize chipram allocator */
  380. amiga_chip_init();
  381. /* our beloved beeper */
  382. if (AMIGAHW_PRESENT(AMI_AUDIO))
  383. amiga_init_sound();
  384. /*
  385. * if it is an A3000, set the magic bit that forces
  386. * a hard rekick
  387. */
  388. if (AMIGAHW_PRESENT(MAGIC_REKICK))
  389. *(unsigned char *)ZTWO_VADDR(0xde0002) |= 0x80;
  390. }
  391. static u64 amiga_read_clk(struct clocksource *cs);
  392. static struct clocksource amiga_clk = {
  393. .name = "ciab",
  394. .rating = 250,
  395. .read = amiga_read_clk,
  396. .mask = CLOCKSOURCE_MASK(32),
  397. .flags = CLOCK_SOURCE_IS_CONTINUOUS,
  398. };
  399. static unsigned short jiffy_ticks;
  400. static u32 clk_total, clk_offset;
  401. static irqreturn_t ciab_timer_handler(int irq, void *dev_id)
  402. {
  403. clk_total += jiffy_ticks;
  404. clk_offset = 0;
  405. legacy_timer_tick(1);
  406. timer_heartbeat();
  407. return IRQ_HANDLED;
  408. }
  409. static void __init amiga_sched_init(void)
  410. {
  411. static struct resource sched_res = {
  412. .name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
  413. };
  414. jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ);
  415. if (request_resource(&mb_resources._ciab, &sched_res))
  416. pr_warn("Cannot allocate ciab.ta{lo,hi}\n");
  417. ciab.cra &= 0xC0; /* turn off timer A, continuous mode, from Eclk */
  418. ciab.talo = jiffy_ticks % 256;
  419. ciab.tahi = jiffy_ticks / 256;
  420. /* install interrupt service routine for CIAB Timer A
  421. *
  422. * Please don't change this to use ciaa, as it interferes with the
  423. * SCSI code. We'll have to take a look at this later
  424. */
  425. if (request_irq(IRQ_AMIGA_CIAB_TA, ciab_timer_handler, IRQF_TIMER,
  426. "timer", NULL))
  427. pr_err("Couldn't register timer interrupt\n");
  428. /* start timer */
  429. ciab.cra |= 0x11;
  430. clocksource_register_hz(&amiga_clk, amiga_eclock);
  431. }
  432. static u64 amiga_read_clk(struct clocksource *cs)
  433. {
  434. unsigned short hi, lo, hi2;
  435. unsigned long flags;
  436. u32 ticks;
  437. local_irq_save(flags);
  438. /* read CIA B timer A current value */
  439. hi = ciab.tahi;
  440. lo = ciab.talo;
  441. hi2 = ciab.tahi;
  442. if (hi != hi2) {
  443. lo = ciab.talo;
  444. hi = hi2;
  445. }
  446. ticks = hi << 8 | lo;
  447. if (ticks > jiffy_ticks / 2)
  448. /* check for pending interrupt */
  449. if (cia_set_irq(&ciab_base, 0) & CIA_ICR_TA)
  450. clk_offset = jiffy_ticks;
  451. ticks = jiffy_ticks - ticks;
  452. ticks += clk_offset + clk_total;
  453. local_irq_restore(flags);
  454. return ticks;
  455. }
  456. static void amiga_reset(void) __noreturn;
  457. static void amiga_reset(void)
  458. {
  459. unsigned long jmp_addr040 = virt_to_phys(&&jmp_addr_label040);
  460. unsigned long jmp_addr = virt_to_phys(&&jmp_addr_label);
  461. local_irq_disable();
  462. if (CPU_IS_040_OR_060)
  463. /* Setup transparent translation registers for mapping
  464. * of 16 MB kernel segment before disabling translation
  465. */
  466. asm volatile ("\n"
  467. " move.l %0,%%d0\n"
  468. " and.l #0xff000000,%%d0\n"
  469. " or.w #0xe020,%%d0\n" /* map 16 MB, enable, cacheable */
  470. " .chip 68040\n"
  471. " movec %%d0,%%itt0\n"
  472. " movec %%d0,%%dtt0\n"
  473. " .chip 68k\n"
  474. " jmp %0@\n"
  475. : /* no outputs */
  476. : "a" (jmp_addr040)
  477. : "d0");
  478. else
  479. /* for 680[23]0, just disable translation and jump to the physical
  480. * address of the label
  481. */
  482. asm volatile ("\n"
  483. " pmove %%tc,%@\n"
  484. " bclr #7,%@\n"
  485. " pmove %@,%%tc\n"
  486. " jmp %0@\n"
  487. : /* no outputs */
  488. : "a" (jmp_addr));
  489. jmp_addr_label040:
  490. /* disable translation on '040 now */
  491. asm volatile ("\n"
  492. " moveq #0,%%d0\n"
  493. " .chip 68040\n"
  494. " movec %%d0,%%tc\n" /* disable MMU */
  495. " .chip 68k\n"
  496. : /* no outputs */
  497. : /* no inputs */
  498. : "d0");
  499. jmp_addr_label:
  500. /* pickup reset address from AmigaOS ROM, reset devices and jump
  501. * to reset address
  502. */
  503. asm volatile ("\n"
  504. " move.w #0x2700,%sr\n"
  505. " lea 0x01000000,%a0\n"
  506. " sub.l %a0@(-0x14),%a0\n"
  507. " move.l %a0@(4),%a0\n"
  508. " subq.l #2,%a0\n"
  509. " jra 1f\n"
  510. /* align on a longword boundary */
  511. " " __ALIGN_STR "\n"
  512. "1:\n"
  513. " reset\n"
  514. " jmp %a0@");
  515. for (;;)
  516. ;
  517. }
  518. /*
  519. * Debugging
  520. */
  521. #define SAVEKMSG_MAXMEM 128*1024
  522. #define SAVEKMSG_MAGIC1 0x53415645 /* 'SAVE' */
  523. #define SAVEKMSG_MAGIC2 0x4B4D5347 /* 'KMSG' */
  524. struct savekmsg {
  525. unsigned long magic1; /* SAVEKMSG_MAGIC1 */
  526. unsigned long magic2; /* SAVEKMSG_MAGIC2 */
  527. unsigned long magicptr; /* address of magic1 */
  528. unsigned long size;
  529. char data[];
  530. };
  531. static struct savekmsg *savekmsg;
  532. static void amiga_mem_console_write(struct console *co, const char *s,
  533. unsigned int count)
  534. {
  535. if (savekmsg->size + count <= SAVEKMSG_MAXMEM-sizeof(struct savekmsg)) {
  536. memcpy(savekmsg->data + savekmsg->size, s, count);
  537. savekmsg->size += count;
  538. }
  539. }
  540. static int __init amiga_savekmsg_setup(char *arg)
  541. {
  542. bool registered;
  543. if (!MACH_IS_AMIGA || strcmp(arg, "mem"))
  544. return 0;
  545. if (amiga_chip_size < SAVEKMSG_MAXMEM) {
  546. pr_err("Not enough chipram for debugging\n");
  547. return -ENOMEM;
  548. }
  549. /* Just steal the block, the chipram allocator isn't functional yet */
  550. amiga_chip_size -= SAVEKMSG_MAXMEM;
  551. savekmsg = ZTWO_VADDR(CHIP_PHYSADDR + amiga_chip_size);
  552. savekmsg->magic1 = SAVEKMSG_MAGIC1;
  553. savekmsg->magic2 = SAVEKMSG_MAGIC2;
  554. savekmsg->magicptr = ZTWO_PADDR(savekmsg);
  555. savekmsg->size = 0;
  556. registered = !!amiga_console_driver.write;
  557. amiga_console_driver.write = amiga_mem_console_write;
  558. if (!registered)
  559. register_console(&amiga_console_driver);
  560. return 0;
  561. }
  562. early_param("debug", amiga_savekmsg_setup);
  563. static void amiga_serial_putc(char c)
  564. {
  565. amiga_custom.serdat = (unsigned char)c | 0x100;
  566. while (!(amiga_custom.serdatr & 0x2000))
  567. ;
  568. }
  569. static void amiga_serial_console_write(struct console *co, const char *s,
  570. unsigned int count)
  571. {
  572. while (count--) {
  573. if (*s == '\n')
  574. amiga_serial_putc('\r');
  575. amiga_serial_putc(*s++);
  576. }
  577. }
  578. #if 0
  579. void amiga_serial_puts(const char *s)
  580. {
  581. amiga_serial_console_write(NULL, s, strlen(s));
  582. }
  583. int amiga_serial_console_wait_key(struct console *co)
  584. {
  585. int ch;
  586. while (!(amiga_custom.intreqr & IF_RBF))
  587. barrier();
  588. ch = amiga_custom.serdatr & 0xff;
  589. /* clear the interrupt, so that another character can be read */
  590. amiga_custom.intreq = IF_RBF;
  591. return ch;
  592. }
  593. void amiga_serial_gets(struct console *co, char *s, int len)
  594. {
  595. int ch, cnt = 0;
  596. while (1) {
  597. ch = amiga_serial_console_wait_key(co);
  598. /* Check for backspace. */
  599. if (ch == 8 || ch == 127) {
  600. if (cnt == 0) {
  601. amiga_serial_putc('\007');
  602. continue;
  603. }
  604. cnt--;
  605. amiga_serial_puts("\010 \010");
  606. continue;
  607. }
  608. /* Check for enter. */
  609. if (ch == 10 || ch == 13)
  610. break;
  611. /* See if line is too long. */
  612. if (cnt >= len + 1) {
  613. amiga_serial_putc(7);
  614. cnt--;
  615. continue;
  616. }
  617. /* Store and echo character. */
  618. s[cnt++] = ch;
  619. amiga_serial_putc(ch);
  620. }
  621. /* Print enter. */
  622. amiga_serial_puts("\r\n");
  623. s[cnt] = 0;
  624. }
  625. #endif
  626. static int __init amiga_debug_setup(char *arg)
  627. {
  628. bool registered;
  629. if (!MACH_IS_AMIGA || strcmp(arg, "ser"))
  630. return 0;
  631. /* no initialization required (?) */
  632. registered = !!amiga_console_driver.write;
  633. amiga_console_driver.write = amiga_serial_console_write;
  634. if (!registered)
  635. register_console(&amiga_console_driver);
  636. return 0;
  637. }
  638. early_param("debug", amiga_debug_setup);
  639. #ifdef CONFIG_HEARTBEAT
  640. static void amiga_heartbeat(int on)
  641. {
  642. if (on)
  643. ciaa.pra &= ~2;
  644. else
  645. ciaa.pra |= 2;
  646. }
  647. #endif
  648. /*
  649. * Amiga specific parts of /proc
  650. */
  651. static void amiga_get_model(char *model)
  652. {
  653. strcpy(model, amiga_model_name);
  654. }
  655. static void amiga_get_hardware_list(struct seq_file *m)
  656. {
  657. if (AMIGAHW_PRESENT(CHIP_RAM))
  658. seq_printf(m, "Chip RAM:\t%ldK\n", amiga_chip_size>>10);
  659. seq_printf(m, "PS Freq:\t%dHz\nEClock Freq:\t%ldHz\n",
  660. amiga_psfreq, amiga_eclock);
  661. if (AMIGAHW_PRESENT(AMI_VIDEO)) {
  662. char *type;
  663. switch (amiga_chipset) {
  664. case CS_OCS:
  665. type = "OCS";
  666. break;
  667. case CS_ECS:
  668. type = "ECS";
  669. break;
  670. case CS_AGA:
  671. type = "AGA";
  672. break;
  673. default:
  674. type = "Old or Unknown";
  675. break;
  676. }
  677. seq_printf(m, "Graphics:\t%s\n", type);
  678. }
  679. #define AMIGAHW_ANNOUNCE(name, str) \
  680. if (AMIGAHW_PRESENT(name)) \
  681. seq_printf (m, "\t%s\n", str)
  682. seq_puts(m, "Detected hardware:\n");
  683. AMIGAHW_ANNOUNCE(AMI_VIDEO, "Amiga Video");
  684. AMIGAHW_ANNOUNCE(AMI_BLITTER, "Blitter");
  685. AMIGAHW_ANNOUNCE(AMBER_FF, "Amber Flicker Fixer");
  686. AMIGAHW_ANNOUNCE(AMI_AUDIO, "Amiga Audio");
  687. AMIGAHW_ANNOUNCE(AMI_FLOPPY, "Floppy Controller");
  688. AMIGAHW_ANNOUNCE(A3000_SCSI, "SCSI Controller WD33C93 (A3000 style)");
  689. AMIGAHW_ANNOUNCE(A4000_SCSI, "SCSI Controller NCR53C710 (A4000T style)");
  690. AMIGAHW_ANNOUNCE(A1200_IDE, "IDE Interface (A1200 style)");
  691. AMIGAHW_ANNOUNCE(A4000_IDE, "IDE Interface (A4000 style)");
  692. AMIGAHW_ANNOUNCE(CD_ROM, "Internal CD ROM drive");
  693. AMIGAHW_ANNOUNCE(AMI_KEYBOARD, "Keyboard");
  694. AMIGAHW_ANNOUNCE(AMI_MOUSE, "Mouse Port");
  695. AMIGAHW_ANNOUNCE(AMI_SERIAL, "Serial Port");
  696. AMIGAHW_ANNOUNCE(AMI_PARALLEL, "Parallel Port");
  697. AMIGAHW_ANNOUNCE(A2000_CLK, "Hardware Clock (A2000 style)");
  698. AMIGAHW_ANNOUNCE(A3000_CLK, "Hardware Clock (A3000 style)");
  699. AMIGAHW_ANNOUNCE(CHIP_RAM, "Chip RAM");
  700. AMIGAHW_ANNOUNCE(PAULA, "Paula 8364");
  701. AMIGAHW_ANNOUNCE(DENISE, "Denise 8362");
  702. AMIGAHW_ANNOUNCE(DENISE_HR, "Denise 8373");
  703. AMIGAHW_ANNOUNCE(LISA, "Lisa 8375");
  704. AMIGAHW_ANNOUNCE(AGNUS_PAL, "Normal/Fat PAL Agnus 8367/8371");
  705. AMIGAHW_ANNOUNCE(AGNUS_NTSC, "Normal/Fat NTSC Agnus 8361/8370");
  706. AMIGAHW_ANNOUNCE(AGNUS_HR_PAL, "Fat Hires PAL Agnus 8372");
  707. AMIGAHW_ANNOUNCE(AGNUS_HR_NTSC, "Fat Hires NTSC Agnus 8372");
  708. AMIGAHW_ANNOUNCE(ALICE_PAL, "PAL Alice 8374");
  709. AMIGAHW_ANNOUNCE(ALICE_NTSC, "NTSC Alice 8374");
  710. AMIGAHW_ANNOUNCE(MAGIC_REKICK, "Magic Hard Rekick");
  711. AMIGAHW_ANNOUNCE(PCMCIA, "PCMCIA Slot");
  712. #ifdef CONFIG_ZORRO
  713. if (AMIGAHW_PRESENT(ZORRO))
  714. seq_printf(m, "\tZorro II%s AutoConfig: %d Expansion "
  715. "Device%s\n",
  716. AMIGAHW_PRESENT(ZORRO3) ? "I" : "",
  717. zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s");
  718. #endif /* CONFIG_ZORRO */
  719. #undef AMIGAHW_ANNOUNCE
  720. }
  721. /*
  722. * The Amiga keyboard driver needs key_maps, but we cannot export it in
  723. * drivers/char/defkeymap.c, as it is autogenerated
  724. */
  725. #ifdef CONFIG_HW_CONSOLE
  726. EXPORT_SYMBOL_GPL(key_maps);
  727. #endif