| /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 |
|---|
| 25,78 → 25,25 |
| * (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 "main.h" |
| ofw_entry ofw; |
| #include "main.h" |
| #include "printf.h" |
| #include "ofw.h" |
| 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; |
| void *addr = ofw_claim((void *) KERNEL_LOAD_ADDRESS, KERNEL_SIZE, 1); |
| if (addr == NULL) { |
| printf("Error: Unable to claim memory"); |
| halt(); |
| } |
| 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]; |
| halt(); |
| } |
| 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, 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 |