1#ifndef __SPARC_OPENPROM_H 2#define __SPARC_OPENPROM_H 3 4/* openprom.h: Prom structures and defines for access to the OPENBOOT 5 * prom routines and data areas. 6 * 7 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 8 */ 9 10 11/* Empirical constants... */ 12#ifdef CONFIG_SUN3 13#define KADB_DEBUGGER_BEGVM 0x0fee0000 /* There is no kadb yet but...*/ 14#define LINUX_OPPROM_BEGVM 0x0fef0000 15#define LINUX_OPPROM_ENDVM 0x0ff10000 /* I think this is right - tm */ 16#else 17#define KADB_DEBUGGER_BEGVM 0xffc00000 /* Where kern debugger is in virt-mem */ 18#define LINUX_OPPROM_BEGVM 0xffd00000 19#define LINUX_OPPROM_ENDVM 0xfff00000 20#define LINUX_OPPROM_MAGIC 0x10010407 21#endif 22 23#ifndef __ASSEMBLY__ 24/* V0 prom device operations. */ 25struct linux_dev_v0_funcs { 26 int (*v0_devopen)(char *device_str); 27 int (*v0_devclose)(int dev_desc); 28 int (*v0_rdblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); 29 int (*v0_wrblkdev)(int dev_desc, int num_blks, int blk_st, char *buf); 30 int (*v0_wrnetdev)(int dev_desc, int num_bytes, char *buf); 31 int (*v0_rdnetdev)(int dev_desc, int num_bytes, char *buf); 32 int (*v0_rdchardev)(int dev_desc, int num_bytes, int dummy, char *buf); 33 int (*v0_wrchardev)(int dev_desc, int num_bytes, int dummy, char *buf); 34 int (*v0_seekdev)(int dev_desc, long logical_offst, int from); 35}; 36 37/* V2 and later prom device operations. */ 38struct linux_dev_v2_funcs { 39 int (*v2_inst2pkg)(int d); /* Convert ihandle to phandle */ 40 char * (*v2_dumb_mem_alloc)(char *va, unsigned sz); 41 void (*v2_dumb_mem_free)(char *va, unsigned sz); 42 43 /* To map devices into virtual I/O space. */ 44 char * (*v2_dumb_mmap)(char *virta, int which_io, unsigned paddr, unsigned sz); 45 void (*v2_dumb_munmap)(char *virta, unsigned size); 46 47 int (*v2_dev_open)(char *devpath); 48 void (*v2_dev_close)(int d); 49 int (*v2_dev_read)(int d, char *buf, int nbytes); 50 int (*v2_dev_write)(int d, char *buf, int nbytes); 51 int (*v2_dev_seek)(int d, int hi, int lo); 52 53 /* Never issued (multistage load support) */ 54 void (*v2_wheee2)(void); 55 void (*v2_wheee3)(void); 56}; 57 58struct linux_mlist_v0 { 59 struct linux_mlist_v0 *theres_more; 60 char *start_adr; 61 unsigned num_bytes; 62}; 63 64struct linux_mem_v0 { 65 struct linux_mlist_v0 **v0_totphys; 66 struct linux_mlist_v0 **v0_prommap; 67 struct linux_mlist_v0 **v0_available; /* What we can use */ 68}; 69 70/* Arguments sent to the kernel from the boot prompt. */ 71struct linux_arguments_v0 { 72 char *argv[8]; 73 char args[100]; 74 char boot_dev[2]; 75 int boot_dev_ctrl; 76 int boot_dev_unit; 77 int dev_partition; 78 char *kernel_file_name; 79 void *aieee1; 80}; 81 82/* V2 and up boot things. */ 83struct linux_bootargs_v2 { 84 char **bootpath; 85 char **bootargs; 86 int *fd_stdin; 87 int *fd_stdout; 88}; 89 90#if defined(CONFIG_SUN3) || defined(CONFIG_SUN3X) 91struct linux_romvec { 92 char *pv_initsp; 93 int (*pv_startmon)(void); 94 95 int *diagberr; 96 97 struct linux_arguments_v0 **pv_v0bootargs; 98 unsigned *pv_sun3mem; 99 100 unsigned char (*pv_getchar)(void); 101 int (*pv_putchar)(int ch); 102 int (*pv_nbgetchar)(void); 103 int (*pv_nbputchar)(int ch); 104 unsigned char *pv_echo; 105 unsigned char *pv_insource; 106 unsigned char *pv_outsink; 107 108 int (*pv_getkey)(void); 109 int (*pv_initgetkey)(void); 110 unsigned int *pv_translation; 111 unsigned char *pv_keybid; 112 int *pv_screen_x; 113 int *pv_screen_y; 114 struct keybuf *pv_keybuf; 115 116 char *pv_monid; 117 118 /* 119 * Frame buffer output and terminal emulation 120 */ 121 122 int (*pv_fbwritechar)(char); 123 int *pv_fbaddr; 124 char **pv_font; 125 int (*pv_fbwritestr)(char); 126 127 void (*pv_reboot)(char *bootstr); 128 129 /* 130 * Line input and parsing 131 */ 132 133 unsigned char *pv_linebuf; 134 unsigned char **pv_lineptr; 135 int *pv_linesize; 136 int (*pv_getline)(void); 137 unsigned char (*pv_getnextchar)(void); 138 unsigned char (*pv_peeknextchar)(void); 139 int *pv_fbthere; 140 int (*pv_getnum)(void); 141 142 void (*pv_printf)(const char *fmt, ...); 143 int (*pv_printhex)(void); 144 145 unsigned char *pv_leds; 146 int (*pv_setleds)(void); 147 148 /* 149 * Non-maskable interrupt (nmi) information 150 */ 151 152 int (*pv_nmiaddr)(void); 153 int (*pv_abortentry)(void); 154 int *pv_nmiclock; 155 156 int *pv_fbtype; 157 158 /* 159 * Assorted other things 160 */ 161 162 unsigned pv_romvers; 163 struct globram *pv_globram; 164 char *pv_kbdzscc; 165 166 int *pv_keyrinit; 167 unsigned char *pv_keyrtick; 168 unsigned *pv_memoryavail; 169 long *pv_resetaddr; 170 long *pv_resetmap; 171 172 void (*pv_halt)(void); 173 unsigned char *pv_memorybitmap; 174 175#ifdef CONFIG_SUN3 176 void (*pv_setctxt)(int ctxt, char *va, int pmeg); 177 void (*pv_vector_cmd)(void); 178 int dummy1z; 179 int dummy2z; 180 int dummy3z; 181 int dummy4z; 182#endif 183}; 184#else 185/* The top level PROM vector. */ 186struct linux_romvec { 187 /* Version numbers. */ 188 unsigned int pv_magic_cookie; 189 unsigned int pv_romvers; 190 unsigned int pv_plugin_revision; 191 unsigned int pv_printrev; 192 193 /* Version 0 memory descriptors. */ 194 struct linux_mem_v0 pv_v0mem; 195 196 /* Node operations. */ 197 struct linux_nodeops *pv_nodeops; 198 199 char **pv_bootstr; 200 struct linux_dev_v0_funcs pv_v0devops; 201 202 char *pv_stdin; 203 char *pv_stdout; 204#define PROMDEV_KBD 0 /* input from keyboard */ 205#define PROMDEV_SCREEN 0 /* output to screen */ 206#define PROMDEV_TTYA 1 /* in/out to ttya */ 207#define PROMDEV_TTYB 2 /* in/out to ttyb */ 208 209 /* Blocking getchar/putchar. NOT REENTRANT! (grr) */ 210 int (*pv_getchar)(void); 211 void (*pv_putchar)(int ch); 212 213 /* Non-blocking variants. */ 214 int (*pv_nbgetchar)(void); 215 int (*pv_nbputchar)(int ch); 216 217 void (*pv_putstr)(char *str, int len); 218 219 /* Miscellany. */ 220 void (*pv_reboot)(char *bootstr); 221 void (*pv_printf)(__const__ char *fmt, ...); 222 void (*pv_abort)(void); 223 __volatile__ int *pv_ticks; 224 void (*pv_halt)(void); 225 void (**pv_synchook)(void); 226 227 /* Evaluate a forth string, not different proto for V0 and V2->up. */ 228 union { 229 void (*v0_eval)(int len, char *str); 230 void (*v2_eval)(char *str); 231 } pv_fortheval; 232 233 struct linux_arguments_v0 **pv_v0bootargs; 234 235 /* Get ether address. */ 236 unsigned int (*pv_enaddr)(int d, char *enaddr); 237 238 struct linux_bootargs_v2 pv_v2bootargs; 239 struct linux_dev_v2_funcs pv_v2devops; 240 241 int filler[15]; 242 243 /* This one is sun4c/sun4 only. */ 244 void (*pv_setctxt)(int ctxt, char *va, int pmeg); 245 246 /* Prom version 3 Multiprocessor routines. This stuff is crazy. 247 * No joke. Calling these when there is only one cpu probably 248 * crashes the machine, have to test this. :-) 249 */ 250 251 /* v3_cpustart() will start the cpu 'whichcpu' in mmu-context 252 * 'thiscontext' executing at address 'prog_counter' 253 */ 254 int (*v3_cpustart)(unsigned int whichcpu, int ctxtbl_ptr, 255 int thiscontext, char *prog_counter); 256 257 /* v3_cpustop() will cause cpu 'whichcpu' to stop executing 258 * until a resume cpu call is made. 259 */ 260 int (*v3_cpustop)(unsigned int whichcpu); 261 262 /* v3_cpuidle() will idle cpu 'whichcpu' until a stop or 263 * resume cpu call is made. 264 */ 265 int (*v3_cpuidle)(unsigned int whichcpu); 266 267 /* v3_cpuresume() will resume processor 'whichcpu' executing 268 * starting with whatever 'pc' and 'npc' were left at the 269 * last 'idle' or 'stop' call. 270 */ 271 int (*v3_cpuresume)(unsigned int whichcpu); 272}; 273#endif 274 275/* Routines for traversing the prom device tree. */ 276struct linux_nodeops { 277 int (*no_nextnode)(int node); 278 int (*no_child)(int node); 279 int (*no_proplen)(int node, char *name); 280 int (*no_getprop)(int node, char *name, char *val); 281 int (*no_setprop)(int node, char *name, char *val, int len); 282 char * (*no_nextprop)(int node, char *name); 283}; 284 285/* More fun PROM structures for device probing. */ 286#define PROMREG_MAX 16 287#define PROMVADDR_MAX 16 288#define PROMINTR_MAX 15 289 290struct linux_prom_registers { 291 int which_io; /* is this in OBIO space? */ 292 char *phys_addr; /* The physical address of this register */ 293 int reg_size; /* How many bytes does this register take up? */ 294}; 295 296struct linux_prom_irqs { 297 int pri; /* IRQ priority */ 298 int vector; /* This is foobar, what does it do? */ 299}; 300 301/* Element of the "ranges" vector */ 302struct linux_prom_ranges { 303 unsigned int ot_child_space; 304 unsigned int ot_child_base; /* Bus feels this */ 305 unsigned int ot_parent_space; 306 unsigned int ot_parent_base; /* CPU looks from here */ 307 unsigned int or_size; 308}; 309 310#endif /* !(__ASSEMBLY__) */ 311 312#endif /* !(__SPARC_OPENPROM_H) */ 313