/kernel/trunk/arch/ppc32/boot/ofw.h |
---|
0,0 → 1,65 |
/* |
* Copyright (C) 2005 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
#ifndef __OFW_H__ |
#define __OFW_H__ |
#define NULL 0 |
#define MAX_OFW_ARGS 10 |
typedef __builtin_va_list va_list; |
#define va_start(ap, last) __builtin_va_start(ap, last) |
#define va_arg(ap, type) __builtin_va_arg(ap, type) |
#define va_end(ap) __builtin_va_end(ap) |
typedef unsigned int ofw_arg_t; |
typedef unsigned int ihandle; |
typedef unsigned int phandle; |
/** OpenFirmware command structure |
* |
*/ |
typedef struct { |
const char *service; /**< Command name */ |
unsigned int nargs; /**< Number of in arguments */ |
unsigned int nret; /**< Number of out arguments */ |
ofw_arg_t args[MAX_OFW_ARGS]; /**< List of arguments */ |
} ofw_args_t; |
typedef void (*ofw_entry)(ofw_args_t *); |
extern void init(void); |
extern int ofw_call(const char *service, const int nargs, const int nret, ...); |
extern void ofw_write(const char *str, const int len); |
extern void ofw_puts(const char *str); |
extern void *ofw_claim(const void *addr, const int size, const int align); |
extern phandle ofw_find_device(const char *name); |
extern int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen); |
#endif |
/kernel/trunk/arch/ppc32/boot/printf.c |
---|
0,0 → 1,230 |
/* |
* Copyright (C) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include "printf.h" |
#include "ofw.h" |
static char digits[] = "0123456789abcdef"; /**< Hexadecimal characters */ |
/** Print hexadecimal digits |
* |
* Print fixed count of hexadecimal digits from |
* the number num. The digits are printed in |
* natural left-to-right order starting with |
* the width-th digit. |
* |
* @param num Number containing digits. |
* @param width Count of digits to print. |
* |
*/ |
static void print_fixed_hex(const __u64 num, const int width) |
{ |
int i; |
for (i = width * 8 - 4; i >= 0; i -= 4) |
ofw_write(digits + ((num >> i) & 0xf), 1); |
} |
/** Print number in given base |
* |
* Print significant digits of a number in given |
* base. |
* |
* @param num Number to print. |
* @param base Base to print the number in (should |
* be in range 2 .. 16). |
* |
*/ |
static void print_number(const __native num, const unsigned int base) |
{ |
int val = num; |
char d[sizeof(__native) * 8 + 1]; /* this is good enough even for base == 2 */ |
int i = sizeof(__native) * 8 - 1; |
do { |
d[i--] = digits[val % base]; |
} while (val /= base); |
d[sizeof(__native) * 8] = 0; |
ofw_puts(&d[i + 1]); |
} |
/** General formatted text print |
* |
* Print text formatted according the fmt parameter |
* and variant arguments. Each formatting directive |
* begins with \% (percentage) character and one of the |
* following character: |
* |
* \% Prints the percentage character. |
* |
* s The next variant argument is treated as char* |
* and printed as a NULL terminated string. |
* |
* c The next variant argument is treated as a single char. |
* |
* p The next variant argument is treated as a maximum |
* bit-width integer with respect to architecture |
* and printed in full hexadecimal width. |
* |
* P As with 'p', but '0x' is prefixed. |
* |
* q The next variant argument is treated as a 64b integer |
* and printed in full hexadecimal width. |
* |
* Q As with 'q', but '0x' is prefixed. |
* |
* l The next variant argument is treated as a 32b integer |
* and printed in full hexadecimal width. |
* |
* L As with 'l', but '0x' is prefixed. |
* |
* w The next variant argument is treated as a 16b integer |
* and printed in full hexadecimal width. |
* |
* W As with 'w', but '0x' is prefixed. |
* |
* b The next variant argument is treated as a 8b integer |
* and printed in full hexadecimal width. |
* |
* B As with 'b', but '0x' is prefixed. |
* |
* d The next variant argument is treated as integer |
* and printed in standard decimal format (only significant |
* digits). |
* |
* x The next variant argument is treated as integer |
* and printed in standard hexadecimal format (only significant |
* digits). |
* |
* X As with 'x', but '0x' is prefixed. |
* |
* All other characters from fmt except the formatting directives |
* are printed in verbatim. |
* |
* @param fmt Formatting NULL terminated string. |
*/ |
void printf(const char *fmt, ...) |
{ |
int i = 0; |
va_list ap; |
char c; |
va_start(ap, fmt); |
while ((c = fmt[i++])) { |
switch (c) { |
/* control character */ |
case '%': |
switch (c = fmt[i++]) { |
/* percentile itself */ |
case '%': |
break; |
/* |
* String and character conversions. |
*/ |
case 's': |
ofw_puts(va_arg(ap, char_ptr)); |
goto loop; |
case 'c': |
c = (char) va_arg(ap, int); |
break; |
/* |
* Hexadecimal conversions with fixed width. |
*/ |
case 'P': |
ofw_puts("0x"); |
case 'p': |
print_fixed_hex(va_arg(ap, __native), sizeof(__native)); |
goto loop; |
case 'Q': |
ofw_puts("0x"); |
case 'q': |
print_fixed_hex(va_arg(ap, __u64), INT64); |
goto loop; |
case 'L': |
ofw_puts("0x"); |
case 'l': |
print_fixed_hex(va_arg(ap, __native), INT32); |
goto loop; |
case 'W': |
ofw_puts("0x"); |
case 'w': |
print_fixed_hex(va_arg(ap, __native), INT16); |
goto loop; |
case 'B': |
ofw_puts("0x"); |
case 'b': |
print_fixed_hex(va_arg(ap, __native), INT8); |
goto loop; |
/* |
* Decimal and hexadecimal conversions. |
*/ |
case 'd': |
print_number(va_arg(ap, __native), 10); |
goto loop; |
case 'X': |
ofw_puts("0x"); |
case 'x': |
print_number(va_arg(ap, __native), 16); |
goto loop; |
/* |
* Bad formatting. |
*/ |
default: |
goto out; |
} |
default: |
ofw_write(&c, 1); |
} |
loop: |
; |
} |
out: |
va_end(ap); |
} |
/kernel/trunk/arch/ppc32/boot/main.c |
---|
27,76 → 27,23 |
*/ |
#include "main.h" |
#include "printf.h" |
#include "ofw.h" |
ofw_entry ofw; |
phandle ofw_chosen; |
ihandle ofw_stdout; |
void init(void) |
static void halt(void) |
{ |
ofw_chosen = ofw_find_device("/chosen"); |
if (ofw_chosen == -1) |
ofw_call("exit", 0, 0); |
if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0) |
ofw_stdout = 0; |
while (1); |
} |
int ofw_call(const char *service, const int nargs, const int nret, ...) |
void bootstrap(void) |
{ |
va_list list; |
ofw_args_t args; |
int i; |
printf("\nHelenOS PPC Bootloader\nKernel size %d, load address %L\n", KERNEL_SIZE, KERNEL_LOAD_ADDRESS); |
args.service = service; |
args.nargs = nargs; |
args.nret = nret; |
va_start(list, nret); |
for (i = 0; i < nargs; i++) |
args.args[i] = va_arg(list, ofw_arg_t); |
va_end(list); |
for (i = 0; i < nret; i++) |
args.args[i + nargs] = 0; |
ofw(&args); |
return args.args[nargs]; |
void *addr = ofw_claim((void *) KERNEL_LOAD_ADDRESS, KERNEL_SIZE, 1); |
if (addr == NULL) { |
printf("Error: Unable to claim memory"); |
halt(); |
} |
void ofw_write(const char *str, const int len) |
{ |
if (ofw_stdout == 0) |
return; |
ofw_call("write", 3, 1, ofw_stdout, str, len); |
halt(); |
} |
void ofw_puts(const char *str) |
{ |
int len = 0; |
while (str[len] != 0) |
len++; |
ofw_write(str, len); |
} |
phandle ofw_find_device(const char *name) |
{ |
return ofw_call("finddevice", 1, 1, name); |
} |
int ofw_get_property(const phandle device, const char *name, void *buf, const int buflen) |
{ |
return ofw_call("getprop", 4, 1, device, name, buf, buflen); |
} |
void bootstrap(void) |
{ |
ofw_puts("\nHelenOS PPC Bootloader\n"); |
while (1); |
} |
/kernel/trunk/arch/ppc32/boot/printf.h |
---|
0,0 → 1,51 |
/* |
* Copyright (C) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
#ifndef __PRINTF_H__ |
#define __PRINTF_H__ |
#define INT8 1 |
#define INT16 2 |
#define INT32 4 |
#define INT64 8 |
typedef signed char __s8; |
typedef unsigned char __u8; |
typedef unsigned short __u16; |
typedef unsigned long __u32; |
typedef long long __u64; |
typedef __u32 __address; |
typedef __u32 __native; |
typedef char *char_ptr; |
void printf(const char *fmt, ...); |
#endif |
/kernel/trunk/arch/ppc32/boot/main.h |
---|
29,36 → 29,6 |
#ifndef __MAIN_H__ |
#define __MAIN_H__ |
#define MAX_OFW_ARGS 10 |
typedef __builtin_va_list va_list; |
#define va_start(ap, last) __builtin_va_start(ap, last) |
#define va_arg(ap, type) __builtin_va_arg(ap, type) |
#define va_end(ap) __builtin_va_end(ap) |
typedef unsigned int ofw_arg_t; |
typedef unsigned int ihandle; |
typedef unsigned int phandle; |
/** OpenFirmware command structure |
* |
*/ |
typedef struct { |
const char *service; /**< Command name */ |
unsigned int nargs; /**< Number of in arguments */ |
unsigned int nret; /**< Number of out arguments */ |
ofw_arg_t args[MAX_OFW_ARGS]; /**< List of arguments */ |
} ofw_args_t; |
typedef void (*ofw_entry)(ofw_args_t *); |
extern void init(void); |
extern int ofw_call(const char *service, const int nargs, const int nret, ...); |
extern void ofw_write(const char *str, const int len); |
extern void ofw_puts(const char *str); |
extern phandle ofw_find_device(const char *name); |
extern int ofw_get_property(const phandle device, const char *name, void *buf, const int buflen); |
extern void bootstrap(void); |
#endif |
/kernel/trunk/arch/ppc32/boot/ofw.c |
---|
0,0 → 1,107 |
/* |
* Copyright (C) 2005 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
#include "ofw.h" |
ofw_entry ofw; |
phandle ofw_chosen; |
ihandle ofw_stdout; |
void init(void) |
{ |
ofw_chosen = ofw_find_device("/chosen"); |
if (ofw_chosen == -1) |
ofw_call("exit", 0, 0); |
if (ofw_get_property(ofw_chosen, "stdout", &ofw_stdout, sizeof(ofw_stdout)) <= 0) |
ofw_stdout = 0; |
} |
int ofw_call(const char *service, const int nargs, const int nret, ...) |
{ |
va_list list; |
ofw_args_t args; |
int i; |
args.service = service; |
args.nargs = nargs; |
args.nret = nret; |
va_start(list, nret); |
for (i = 0; i < nargs; i++) |
args.args[i] = va_arg(list, ofw_arg_t); |
va_end(list); |
for (i = 0; i < nret; i++) |
args.args[i + nargs] = 0; |
ofw(&args); |
return args.args[nargs]; |
} |
void ofw_write(const char *str, const int len) |
{ |
if (ofw_stdout == 0) |
return; |
ofw_call("write", 3, 1, ofw_stdout, str, len); |
} |
void ofw_puts(const char *str) |
{ |
int len = 0; |
while (str[len] != 0) |
len++; |
ofw_write(str, len); |
} |
phandle ofw_find_device(const char *name) |
{ |
return ofw_call("finddevice", 1, 1, name); |
} |
int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen) |
{ |
return ofw_call("getprop", 4, 1, device, name, buf, buflen); |
} |
void *ofw_claim(const void *addr, const int size, const int align) |
{ |
return (void *) ofw_call("claim", 3, 1, addr, size, align); |
} |
/kernel/trunk/arch/ppc32/boot/Makefile |
---|
1,18 → 1,27 |
.PHONY: build clean |
CFLAGS = -nostdinc -nostdlib -fno-builtin -Werror-implicit-function-declaration -Wmissing-prototypes -Werror -O3 -I../include |
DEFS = -DKERNEL_LOAD_ADDRESS=0x800000 -DKERNEL_SIZE=40960 |
SOURCES = \ |
main.c \ |
ofw.c \ |
printf.c \ |
boot.S |
OBJECTS := $(addsuffix .o,$(basename $(SOURCES))) |
build: boot.bin |
cp boot.bin ../../../load.bin |
boot.bin: boot.o main.o |
$(LD) -no-check-sections -N -T _link.ld boot.o main.o -o $@ |
boot.bin: $(OBJECTS) |
$(LD) -no-check-sections -N -T _link.ld $(OBJECTS) -o $@ |
boot.o: boot.S |
$(CC) $(CFLAGS) -c boot.S -o $@ |
%.o: %.S |
$(CC) $(DEFS) $(CFLAGS) -D__ASM__ -c $< -o $@ |
main.o: main.c |
$(CC) $(CFLAGS) -c main.c -o $@ |
%.o: %.c |
$(CC) $(DEFS) $(CFLAGS) -c $< -o $@ |
clean: |
-rm -f boot.o main.o boot.bin ../../../load.bin |
-rm -f $(OBJECTS) boot.bin ../../../load.bin |