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ieee1275: encode-unit command for 4 addr cell devs

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Convert physical address to text unit-string.

Convert phys.lo ... phys-high, the numerical representation, to unit-string,
the text string representation of a physical address within the address
space defined by this device node. The number of cells in the list
phys.lo ... phys.hi is determined by the value of the #address-cells property
of this node.

This function is for devices with #address-cells == 4

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Eric Snowberg 2018-02-26 17:34:15 -08:00 committed by Vincent Batts
parent 856004c85b
commit 8d68e13b22
2 changed files with 51 additions and 0 deletions
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45
grub-core/kern/ieee1275/ieee1275.c
View file

@ -19,6 +19,7 @@
#include <grub/ieee1275/ieee1275.h>
#include <grub/types.h>
#include <grub/misc.h>
#define IEEE1275_PHANDLE_INVALID ((grub_ieee1275_cell_t) -1)
#define IEEE1275_IHANDLE_INVALID ((grub_ieee1275_cell_t) 0)
@ -523,6 +524,50 @@ grub_ieee1275_decode_unit4 (grub_ieee1275_ihandle_t ihandle,
return 0;
}
char *
grub_ieee1275_encode_uint4 (grub_ieee1275_ihandle_t ihandle,
grub_uint32_t phy_lo, grub_uint32_t phy_hi,
grub_uint32_t lun_lo, grub_uint32_t lun_hi,
grub_size_t *size)
{
char *addr;
struct encode_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t method;
grub_ieee1275_cell_t ihandle;
grub_ieee1275_cell_t tgt_h;
grub_ieee1275_cell_t tgt_l;
grub_ieee1275_cell_t lun_h;
grub_ieee1275_cell_t lun_l;
grub_ieee1275_cell_t catch_result;
grub_ieee1275_cell_t size;
grub_ieee1275_cell_t addr;
}
args;
INIT_IEEE1275_COMMON (&args.common, "call-method", 6, 3);
args.method = (grub_ieee1275_cell_t) "encode-unit";
args.ihandle = ihandle;
args.tgt_l = phy_lo;
args.tgt_h = phy_hi;
args.lun_l = lun_lo;
args.lun_h = lun_hi;
args.catch_result = 1;
if ((IEEE1275_CALL_ENTRY_FN (&args) == -1) || (args.catch_result))
{
grub_error (GRUB_ERR_OUT_OF_RANGE, "encode-unit failed\n");
return 0;
}
addr = (void *)args.addr;
*size = args.size;
addr = grub_strdup ((char *)args.addr);
return addr;
}
int
grub_ieee1275_claim (grub_addr_t addr, grub_size_t size, unsigned int align,
grub_addr_t *result)

6
include/grub/ieee1275/ieee1275.h
View file

@ -216,6 +216,12 @@ int EXPORT_FUNC(grub_ieee1275_decode_unit4) (grub_ieee1275_ihandle_t ihandle,
grub_uint32_t *phy_hi,
grub_uint32_t *lun_lo,
grub_uint32_t *lun_hi);
char *EXPORT_FUNC(grub_ieee1275_encode_uint4) (grub_ieee1275_ihandle_t ihandle,
grub_uint32_t phy_lo,
grub_uint32_t phy_hi,
grub_uint32_t lun_lo,
grub_uint32_t lun_hi,
grub_size_t *size);
grub_err_t EXPORT_FUNC(grub_claimmap) (grub_addr_t addr, grub_size_t size);