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#include "printf.h"
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#include "printf.h"
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#define MAX_OFW_ARGS    10
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#define MAX_OFW_ARGS    10
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#define BUF_SIZE        1024
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#define BUF_SIZE        1024
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typedef unsigned int ofw_arg_t;
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typedef unsigned long ofw_arg_t;
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typedef unsigned int ihandle;
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typedef unsigned long ihandle;
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typedef unsigned int phandle;
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typedef unsigned long phandle;
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/** OpenFirmware command structure
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/** OpenFirmware command structure
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 *
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 *
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 */
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 */
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typedef struct {
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typedef struct {
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    const char *service;          /**< Command name */
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    const char *service;          /**< Command name */
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    unsigned int nargs;           /**< Number of in arguments */
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    unsigned long nargs;           /**< Number of in arguments */
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    unsigned int nret;            /**< Number of out arguments */
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    unsigned long nret;            /**< Number of out arguments */
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    ofw_arg_t args[MAX_OFW_ARGS]; /**< List of arguments */
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    ofw_arg_t args[MAX_OFW_ARGS]; /**< List of arguments */
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} ofw_args_t;
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} ofw_args_t;
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typedef void (*ofw_entry)(ofw_args_t *);
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typedef void (*ofw_entry)(ofw_args_t *);
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ihandle ofw_mmu;
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ihandle ofw_mmu;
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phandle ofw_memory;
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phandle ofw_memory;
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phandle ofw_aliases;
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phandle ofw_aliases;
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static int ofw_call(const char *service, const int nargs, const int nret, ofw_arg_t *rets, ...)
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static long ofw_call(const char *service, const long nargs, const long nret, ofw_arg_t *rets, ...)
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{
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{
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    va_list list;
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    va_list list;
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    ofw_args_t args;
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    ofw_args_t args;
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    int i;
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    long i;
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    args.service = service;
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    args.service = service;
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    args.nargs = nargs;
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    args.nargs = nargs;
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    args.nret = nret;
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    args.nret = nret;
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{
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{
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    return ofw_call("finddevice", 1, 1, NULL, name);
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    return ofw_call("finddevice", 1, 1, NULL, name);
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}
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}
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static int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen)
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static long ofw_get_property(const phandle device, const char *name, const void *buf, const long buflen)
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{
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{
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    return ofw_call("getprop", 4, 1, NULL, device, name, buf, buflen);
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    return ofw_call("getprop", 4, 1, NULL, device, name, buf, buflen);
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}
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}
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static unsigned int ofw_get_address_cells(const phandle device)
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static unsigned long ofw_get_address_cells(const phandle device)
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{
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{
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    unsigned int ret;
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    unsigned long ret;
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    if (ofw_get_property(device, "#address-cells", &ret, sizeof(ret)) <= 0)
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    if (ofw_get_property(device, "#address-cells", &ret, sizeof(ret)) <= 0)
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        if (ofw_get_property(ofw_root, "#address-cells", &ret, sizeof(ret)) <= 0)
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        if (ofw_get_property(ofw_root, "#address-cells", &ret, sizeof(ret)) <= 0)
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            ret = 1;
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            ret = 1;
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    return ret;
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    return ret;
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}
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}
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static unsigned int ofw_get_size_cells(const phandle device)
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static unsigned long ofw_get_size_cells(const phandle device)
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{
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{
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    unsigned int ret;
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    unsigned long ret;
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    if (ofw_get_property(device, "#size-cells", &ret, sizeof(ret)) <= 0)
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    if (ofw_get_property(device, "#size-cells", &ret, sizeof(ret)) <= 0)
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        if (ofw_get_property(ofw_root, "#size-cells", &ret, sizeof(ret)) <= 0)
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        if (ofw_get_property(ofw_root, "#size-cells", &ret, sizeof(ret)) <= 0)
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            ret = 1;
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            ret = 1;
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        halt();
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        halt();
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    }
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    }
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}
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}
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void ofw_write(const char *str, const int len)
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void ofw_write(const char *str, const long len)
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{
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{
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    if (ofw_stdout == 0)
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    if (ofw_stdout == 0)
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        return;
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        return;
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    ofw_call("write", 3, 1, NULL, ofw_stdout, str, len);
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    ofw_call("write", 3, 1, NULL, ofw_stdout, str, len);
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    }
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    }
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    return (void *) result[2];
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    return (void *) result[2];
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}
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}
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int ofw_map(const void *phys, const void *virt, const int size, const int mode)
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long ofw_map(const void *phys, const void *virt, const long size, const long mode)
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{
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{
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    return ofw_call("call-method", 6, 1, NULL, "map", ofw_mmu, mode, size, virt, phys);
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    return ofw_call("call-method", 6, 1, NULL, "map", ofw_mmu, mode, size, virt, phys);
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}
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}
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int ofw_memmap(memmap_t *map)
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long ofw_memmap(memmap_t *map)
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{
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{
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    unsigned int buf[BUF_SIZE];
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    unsigned long buf[BUF_SIZE];
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    int ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(unsigned int) * BUF_SIZE);
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    long ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(unsigned long) * BUF_SIZE);
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    if (ret <= 0)
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    if (ret <= 0)
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        return false;
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        return false;
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    unsigned int ac = ofw_get_address_cells(ofw_memory);
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    unsigned long ac = ofw_get_address_cells(ofw_memory);
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    unsigned int sc = ofw_get_size_cells(ofw_memory);
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    unsigned long sc = ofw_get_size_cells(ofw_memory);
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    int pos;
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    long pos;
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    map->total = 0;
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    map->total = 0;
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    map->count = 0;
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    map->count = 0;
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    for (pos = 0; (pos < ret / sizeof(unsigned int)) && (map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) {
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    for (pos = 0; (pos < ret / sizeof(unsigned long)) && (map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) {
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        void * start = (void *) buf[pos + ac - 1];
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        void * start = (void *) buf[pos + ac - 1];
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        unsigned int size = buf[pos + ac + sc - 1];
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        unsigned long size = buf[pos + ac + sc - 1];
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        if (size > 0) {
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        if (size > 0) {
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            map->zones[map->count].start = start;
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            map->zones[map->count].start = start;
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            map->zones[map->count].size = size;
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            map->zones[map->count].size = size;
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            map->count++;
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            map->count++;
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        }
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        }
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    }
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    }
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}
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}
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int ofw_screen(screen_t *screen)
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long ofw_screen(screen_t *screen)
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{
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{
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    char device_name[BUF_SIZE];
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    char device_name[BUF_SIZE];
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    if (ofw_get_property(ofw_aliases, "screen", device_name, sizeof(char) * BUF_SIZE) <= 0)
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    if (ofw_get_property(ofw_aliases, "screen", device_name, sizeof(char) * BUF_SIZE) <= 0)
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        return false;
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        return false;