Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * oplib.h:  Describes the interface and available routines in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *           Linux Prom library.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #ifndef __SPARC_OPLIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #define __SPARC_OPLIB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <asm/openprom.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) /* The master romvec pointer... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) extern struct linux_romvec *romvec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) /* Enumeration to describe the prom major version we have detected. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) enum prom_major_version {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	PROM_V0,      /* Original sun4c V0 prom */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	PROM_V2,      /* sun4c and early sun4m V2 prom */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	PROM_V3,      /* sun4m and later, up to sun4d/sun4e machines V3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	PROM_P1275,   /* IEEE compliant ISA based Sun PROM, only sun4u */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) extern enum prom_major_version prom_vers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) /* Revision, and firmware revision. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) extern unsigned int prom_rev, prom_prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) /* Root node of the prom device tree, this stays constant after
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  * initialization is complete.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) extern int prom_root_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) /* Pointer to prom structure containing the device tree traversal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  * and usage utility functions.  Only prom-lib should use these,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  * users use the interface defined by the library only!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) extern struct linux_nodeops *prom_nodeops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) /* The functions... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) /* You must call prom_init() before using any of the library services,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43)  * preferably as early as possible.  Pass it the romvec pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) extern void prom_init(struct linux_romvec *rom_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) /* Boot argument acquisition, returns the boot command line string. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) extern char *prom_getbootargs(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) /* Device utilities. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) /* Map and unmap devices in IO space at virtual addresses. Note that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  * virtual address you pass is a request and the prom may put your mappings
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  * somewhere else, so check your return value as that is where your new
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  * mappings really are!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57)  * Another note, these are only available on V2 or higher proms!
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) extern void prom_unmapio(char *virt_addr, unsigned int num_bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) /* Device operations. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) /* Open the device described by the passed string.  Note, that the format
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  * of the string is different on V0 vs. V2->higher proms.  The caller must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  * know what he/she is doing!  Returns the device descriptor, an int.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) extern int prom_devopen(char *device_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) /* Close a previously opened device described by the passed integer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71)  * descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) extern int prom_devclose(int device_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) /* Do a seek operation on the device described by the passed integer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)  * descriptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) extern void prom_seek(int device_handle, unsigned int seek_hival,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		      unsigned int seek_lowval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) /* Machine memory configuration routine. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) /* This function returns a V0 format memory descriptor table, it has three
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84)  * entries.  One for the total amount of physical ram on the machine, one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85)  * for the amount of physical ram available, and one describing the virtual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86)  * areas which are allocated by the prom.  So, in a sense the physical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87)  * available is a calculation of the total physical minus the physical mapped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88)  * by the prom with virtual mappings.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90)  * These lists are returned pre-sorted, this should make your life easier
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91)  * since the prom itself is way too lazy to do such nice things.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) extern struct linux_mem_v0 *prom_meminfo(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) /* Miscellaneous routines, don't really fit in any category per se. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) /* Reboot the machine with the command line passed. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) extern void prom_reboot(char *boot_command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /* Evaluate the forth string passed. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) extern void prom_feval(char *forth_string);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /* Enter the prom, with possibility of continuation with the 'go'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)  * command in newer proms.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) extern void prom_cmdline(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /* Enter the prom, with no chance of continuation for the stand-alone
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)  * which calls this.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) extern void prom_halt(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /* Set the PROM 'sync' callback function to the passed function pointer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)  * When the user gives the 'sync' command at the prom prompt while the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)  * kernel is still active, the prom will call this routine.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)  * XXX The arguments are different on V0 vs. V2->higher proms, grrr! XXX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) typedef void (*sync_func_t)(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) extern void prom_setsync(sync_func_t func_ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /* Acquire the IDPROM of the root node in the prom device tree.  This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)  * gets passed a buffer where you would like it stuffed.  The return value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)  * is the format type of this idprom or 0xff on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /* Get the prom major version. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) extern int prom_version(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /* Get the prom plugin revision. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) extern int prom_getrev(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) /* Get the prom firmware revision. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) extern int prom_getprev(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /* Character operations to/from the console.... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /* Non-blocking get character from console. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) extern int prom_nbgetchar(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) /* Non-blocking put character to console. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) extern int prom_nbputchar(char character);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* Blocking get character from console. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) extern char prom_getchar(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /* Blocking put character to console. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) extern void prom_putchar(char character);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /* Prom's internal printf routine, don't use in kernel/boot code. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) void prom_printf(char *fmt, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* Query for input device type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) enum prom_input_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	PROMDEV_IKBD,			/* input from keyboard */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	PROMDEV_ITTYA,			/* input from ttya */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	PROMDEV_ITTYB,			/* input from ttyb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	PROMDEV_I_UNK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) extern enum prom_input_device prom_query_input_device(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) /* Query for output device type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) enum prom_output_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	PROMDEV_OSCREEN,		/* to screen */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	PROMDEV_OTTYA,			/* to ttya */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	PROMDEV_OTTYB,			/* to ttyb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	PROMDEV_O_UNK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) extern enum prom_output_device prom_query_output_device(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /* Multiprocessor operations... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* Start the CPU with the given device tree node, context table, and context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)  * at the passed program counter.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			 int context, char *program_counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /* Stop the CPU with the passed device tree node. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) extern int prom_stopcpu(int cpunode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /* Idle the CPU with the passed device tree node. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) extern int prom_idlecpu(int cpunode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) /* Re-Start the CPU with the passed device tree node. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) extern int prom_restartcpu(int cpunode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /* PROM memory allocation facilities... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /* Allocated at possibly the given virtual address a chunk of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)  * indicated size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) extern char *prom_alloc(char *virt_hint, unsigned int size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) /* Free a previously allocated chunk. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) extern void prom_free(char *virt_addr, unsigned int size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) /* Sun4/sun4c specific memory-management startup hook. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /* Map the passed segment in the given context at the passed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)  * virtual address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) extern void prom_putsegment(int context, unsigned long virt_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			    int physical_segment);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) /* PROM device tree traversal functions... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) /* Get the child node of the given node, or zero if no child exists. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) extern int prom_getchild(int parent_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /* Get the next sibling node of the given node, or zero if no further
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)  * siblings exist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) extern int prom_getsibling(int node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /* Get the length, at the passed node, of the given property type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)  * Returns -1 on error (ie. no such property at this node).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) extern int prom_getproplen(int thisnode, char *property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /* Fetch the requested property using the given buffer.  Returns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)  * the number of bytes the prom put into your buffer or -1 on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) extern int prom_getproperty(int thisnode, char *property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			    char *prop_buffer, int propbuf_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) /* Acquire an integer property. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) extern int prom_getint(int node, char *property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) /* Acquire an integer property, with a default value. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) extern int prom_getintdefault(int node, char *property, int defval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /* Acquire a boolean property, 0=FALSE 1=TRUE. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) extern int prom_getbool(int node, char *prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) /* Acquire a string property, null string on error. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) extern void prom_getstring(int node, char *prop, char *buf, int bufsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /* Does the passed node have the given "name"? YES=1 NO=0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) extern int prom_nodematch(int thisnode, char *name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) /* Search all siblings starting at the passed node for "name" matching
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)  * the given string.  Returns the node on success, zero on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) extern int prom_searchsiblings(int node_start, char *name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /* Return the first property type, as a string, for the given node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)  * Returns a null string on error.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) extern char *prom_firstprop(int node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) /* Returns the next property after the passed property for the given
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)  * node.  Returns null string on failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) extern char *prom_nextprop(int node, char *prev_property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) /* Returns 1 if the specified node has given property. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) extern int prom_node_has_property(int node, char *property);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) /* Set the indicated property at the given node with the passed value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)  * Returns the number of bytes of your value that the prom took.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) extern int prom_setprop(int node, char *prop_name, char *prop_value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 			int value_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) extern int prom_pathtoinode(char *path);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) extern int prom_inst2pkg(int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) /* Dorking with Bus ranges... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) /* Adjust reg values with the passed ranges. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) extern void prom_adjust_regs(struct linux_prom_registers *regp, int nregs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 			     struct linux_prom_ranges *rangep, int nranges);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) /* Adjust child ranges with the passed parent ranges. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) extern void prom_adjust_ranges(struct linux_prom_ranges *cranges, int ncranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 			       struct linux_prom_ranges *pranges, int npranges);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /* Apply promlib probed OBIO ranges to registers. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) /* Apply ranges of any prom node (and optionally parent node as well) to registers. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) extern void prom_apply_generic_ranges(int node, int parent,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 				      struct linux_prom_registers *sbusregs, int nregs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) #endif /* !(__SPARC_OPLIB_H) */