WebSVN – HelenOS-historic – Diff – /boot/trunk/arch/ppc64/loader/ofw.c



#include "printf.h"
 
#define MAX_OFW_ARGS    10
#define BUF_SIZE        1024
 
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 *);
 

ihandle ofw_mmu;
phandle ofw_memory;
phandle ofw_aliases;
 
 
static int ofw_call(const char *service, const int nargs, const int nret, ofw_arg_t *rets, ...)
{
    va_list list;
    ofw_args_t args;
    int i;
   
    args.service = service;
    args.nargs = nargs;
    args.nret = nret;
   

{
    return ofw_call("finddevice", 1, 1, NULL, name);
}
 
 
static int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen)
{
    return ofw_call("getprop", 4, 1, NULL, device, name, buf, buflen);
}
 
 
static unsigned int ofw_get_address_cells(const phandle device)
{
    unsigned int ret;
   
    if (ofw_get_property(device, "#address-cells", &ret, sizeof(ret)) <= 0)
        if (ofw_get_property(ofw_root, "#address-cells", &ret, sizeof(ret)) <= 0)
            ret = 1;
   
    return ret;
}
 
 
static unsigned int ofw_get_size_cells(const phandle device)
{
    unsigned int ret;
   
    if (ofw_get_property(device, "#size-cells", &ret, sizeof(ret)) <= 0)
        if (ofw_get_property(ofw_root, "#size-cells", &ret, sizeof(ret)) <= 0)
            ret = 1;
   

    }
    return (void *) result[2];
}
 
 
int ofw_map(const void *phys, const void *virt, const int size, const int mode)
{
    return ofw_call("call-method", 6, 1, NULL, "map", ofw_mmu, mode, size, virt, phys);
}
 
 
int ofw_memmap(memmap_t *map)
{
    unsigned int buf[BUF_SIZE];
    int ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(unsigned int) * BUF_SIZE);
    if (ret <= 0)
        return false;
       
    unsigned int ac = ofw_get_address_cells(ofw_memory);
    unsigned int sc = ofw_get_size_cells(ofw_memory);
   
    int pos;
    map->total = 0;
    map->count = 0;
    for (pos = 0; (pos < ret / sizeof(unsigned int)) && (map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) {
        void * start = (void *) buf[pos + ac - 1];
        unsigned int size = buf[pos + ac + sc - 1];
       
        if (size > 0) {
            map->zones[map->count].start = start;
            map->zones[map->count].size = size;
            map->count++;

        }
    }
}
 
 
int ofw_screen(screen_t *screen)
{
    char device_name[BUF_SIZE];
   
    if (ofw_get_property(ofw_aliases, "screen", device_name, sizeof(char) * BUF_SIZE) <= 0)
        return false;

Rev 1166	Rev 1395
Line 31...	Line 31...
31	#include "printf.h"	31	#include "printf.h"
32		32
33	#define MAX_OFW_ARGS 10	33	#define MAX_OFW_ARGS 10
34	#define BUF_SIZE 1024	34	#define BUF_SIZE 1024
35		35
36	typedef unsigned long ofw_arg_t;	36	typedef unsigned int ofw_arg_t;
37	typedef unsigned long ihandle;	37	typedef unsigned int ihandle;
38	typedef unsigned long phandle;	38	typedef unsigned int phandle;
39		39
40	/** OpenFirmware command structure	40	/** OpenFirmware command structure
41	*	41	*
42	*/	42	*/
43	typedef struct {	43	typedef struct {
44	const char service; /< Command name /	44	const char service; /< Command name /
45	unsigned long nargs; /*< Number of in arguments /	45	unsigned int nargs; /*< Number of in arguments /
46	unsigned long nret; /*< Number of out arguments /	46	unsigned int nret; /*< Number of out arguments /
47	ofw_arg_t args[MAX_OFW_ARGS]; /*< List of arguments /	47	ofw_arg_t args[MAX_OFW_ARGS]; /*< List of arguments /
48	} ofw_args_t;	48	} ofw_args_t;
49		49
50	typedef void (ofw_entry)(ofw_args_t );	50	typedef void (ofw_entry)(ofw_args_t );
51		51
Line 58...	Line 58...
58	ihandle ofw_mmu;	58	ihandle ofw_mmu;
59	phandle ofw_memory;	59	phandle ofw_memory;
60	phandle ofw_aliases;	60	phandle ofw_aliases;
61		61
62		62
63	static long ofw_call(const char service, const long nargs, const long nret, ofw_arg_t rets, ...)	63	static int ofw_call(const char service, const int nargs, const int nret, ofw_arg_t rets, ...)
64	{	64	{
65	va_list list;	65	va_list list;
66	ofw_args_t args;	66	ofw_args_t args;
67	long i;	67	int i;
68		68
69	args.service = service;	69	args.service = service;
70	args.nargs = nargs;	70	args.nargs = nargs;
71	args.nret = nret;	71	args.nret = nret;
72		72
Line 91...	Line 91...
91	{	91	{
92	return ofw_call("finddevice", 1, 1, NULL, name);	92	return ofw_call("finddevice", 1, 1, NULL, name);
93	}	93	}
94		94
95		95
96	static long ofw_get_property(const phandle device, const char name, const void buf, const long buflen)	96	static int ofw_get_property(const phandle device, const char name, const void buf, const int buflen)
97	{	97	{
98	return ofw_call("getprop", 4, 1, NULL, device, name, buf, buflen);	98	return ofw_call("getprop", 4, 1, NULL, device, name, buf, buflen);
99	}	99	}
100		100
101		101
102	static unsigned long ofw_get_address_cells(const phandle device)	102	static unsigned int ofw_get_address_cells(const phandle device)
103	{	103	{
104	unsigned long ret;	104	unsigned int ret;
105		105
106	if (ofw_get_property(device, "#address-cells", &ret, sizeof(ret)) <= 0)	106	if (ofw_get_property(device, "#address-cells", &ret, sizeof(ret)) <= 0)
107	if (ofw_get_property(ofw_root, "#address-cells", &ret, sizeof(ret)) <= 0)	107	if (ofw_get_property(ofw_root, "#address-cells", &ret, sizeof(ret)) <= 0)
108	ret = 1;	108	ret = 1;
109		109
110	return ret;	110	return ret;
111	}	111	}
112		112
113		113
114	static unsigned long ofw_get_size_cells(const phandle device)	114	static unsigned int ofw_get_size_cells(const phandle device)
115	{	115	{
116	unsigned long ret;	116	unsigned int ret;
117		117
118	if (ofw_get_property(device, "#size-cells", &ret, sizeof(ret)) <= 0)	118	if (ofw_get_property(device, "#size-cells", &ret, sizeof(ret)) <= 0)
119	if (ofw_get_property(ofw_root, "#size-cells", &ret, sizeof(ret)) <= 0)	119	if (ofw_get_property(ofw_root, "#size-cells", &ret, sizeof(ret)) <= 0)
120	ret = 1;	120	ret = 1;
121		121
Line 182...	Line 182...
182	}	182	}
183	return (void *) result[2];	183	return (void *) result[2];
184	}	184	}
185		185
186		186
187	long ofw_map(const void phys, const void virt, const long size, const long mode)	187	int ofw_map(const void phys, const void virt, const int size, const int mode)
188	{	188	{
189	return ofw_call("call-method", 6, 1, NULL, "map", ofw_mmu, mode, size, virt, phys);	189	return ofw_call("call-method", 6, 1, NULL, "map", ofw_mmu, mode, size, virt, phys);
190	}	190	}
191		191
192		192
193	long ofw_memmap(memmap_t *map)	193	int ofw_memmap(memmap_t *map)
194	{	194	{
195	unsigned long buf[BUF_SIZE];	195	unsigned int buf[BUF_SIZE];
196	long ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(unsigned long) * BUF_SIZE);	196	int ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(unsigned int) * BUF_SIZE);
197	if (ret <= 0)	197	if (ret <= 0)
198	return false;	198	return false;
199		199
200	unsigned long ac = ofw_get_address_cells(ofw_memory);	200	unsigned int ac = ofw_get_address_cells(ofw_memory);
201	unsigned long sc = ofw_get_size_cells(ofw_memory);	201	unsigned int sc = ofw_get_size_cells(ofw_memory);
202		202
203	long pos;	203	int pos;
204	map->total = 0;	204	map->total = 0;
205	map->count = 0;	205	map->count = 0;
206	for (pos = 0; (pos < ret / sizeof(unsigned long)) && (map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) {	206	for (pos = 0; (pos < ret / sizeof(unsigned int)) && (map->count < MEMMAP_MAX_RECORDS); pos += ac + sc) {
207	void * start = (void *) buf[pos + ac - 1];	207	void * start = (void *) buf[pos + ac - 1];
208	unsigned long size = buf[pos + ac + sc - 1];	208	unsigned int size = buf[pos + ac + sc - 1];
209		209
210	if (size > 0) {	210	if (size > 0) {
211	map->zones[map->count].start = start;	211	map->zones[map->count].start = start;
212	map->zones[map->count].size = size;	212	map->zones[map->count].size = size;
213	map->count++;	213	map->count++;
Line 215...	Line 215...
215	}	215	}
216	}	216	}
217	}	217	}
218		218
219		219
220	long ofw_screen(screen_t *screen)	220	int ofw_screen(screen_t *screen)
221	{	221	{
222	char device_name[BUF_SIZE];	222	char device_name[BUF_SIZE];
223		223
224	if (ofw_get_property(ofw_aliases, "screen", device_name, sizeof(char) * BUF_SIZE) <= 0)	224	if (ofw_get_property(ofw_aliases, "screen", device_name, sizeof(char) * BUF_SIZE) <= 0)
225	return false;	225	return false;

Subversion Repositories HelenOS-historic

(root)/boot/trunk/arch/ppc64/loader/ofw.c @ 1755 – Rev 1166 → 1395