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102 lines
3.7 KiB
Diff
102 lines
3.7 KiB
Diff
From 820c64e4c002090bcd9df10ab79d5851b28ac503 Mon Sep 17 00:00:00 2001
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From: Eric Snowberg <eric.snowberg@oracle.com>
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Date: Mon, 26 Feb 2018 17:34:15 -0800
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Subject: [PATCH] ieee1275: encode-unit command for 4 addr cell devs
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Convert physical address to text unit-string.
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Convert phys.lo ... phys-high, the numerical representation, to unit-string,
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the text string representation of a physical address within the address
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space defined by this device node. The number of cells in the list
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phys.lo ... phys.hi is determined by the value of the #address-cells property
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of this node.
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This function is for devices with #address-cells == 4
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Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/kern/ieee1275/ieee1275.c | 45 ++++++++++++++++++++++++++++++++++++++
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include/grub/ieee1275/ieee1275.h | 6 +++++
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2 files changed, 51 insertions(+)
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diff --git a/grub-core/kern/ieee1275/ieee1275.c b/grub-core/kern/ieee1275/ieee1275.c
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index b0ac6f9f9a8..41503ead090 100644
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--- a/grub-core/kern/ieee1275/ieee1275.c
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+++ b/grub-core/kern/ieee1275/ieee1275.c
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@@ -19,6 +19,7 @@
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#include <grub/ieee1275/ieee1275.h>
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#include <grub/types.h>
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+#include <grub/misc.h>
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#define IEEE1275_PHANDLE_INVALID ((grub_ieee1275_cell_t) -1)
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#define IEEE1275_IHANDLE_INVALID ((grub_ieee1275_cell_t) 0)
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@@ -523,6 +524,50 @@ grub_ieee1275_decode_unit4 (grub_ieee1275_ihandle_t ihandle,
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return 0;
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}
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+char *
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+grub_ieee1275_encode_uint4 (grub_ieee1275_ihandle_t ihandle,
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+ grub_uint32_t phy_lo, grub_uint32_t phy_hi,
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+ grub_uint32_t lun_lo, grub_uint32_t lun_hi,
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+ grub_size_t *size)
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+{
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+ char *addr;
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+ struct encode_args
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+ {
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+ struct grub_ieee1275_common_hdr common;
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+ grub_ieee1275_cell_t method;
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+ grub_ieee1275_cell_t ihandle;
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+ grub_ieee1275_cell_t tgt_h;
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+ grub_ieee1275_cell_t tgt_l;
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+ grub_ieee1275_cell_t lun_h;
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+ grub_ieee1275_cell_t lun_l;
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+ grub_ieee1275_cell_t catch_result;
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+ grub_ieee1275_cell_t size;
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+ grub_ieee1275_cell_t addr;
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+ }
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+ args;
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+
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+ INIT_IEEE1275_COMMON (&args.common, "call-method", 6, 3);
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+ args.method = (grub_ieee1275_cell_t) "encode-unit";
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+ args.ihandle = ihandle;
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+
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+ args.tgt_l = phy_lo;
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+ args.tgt_h = phy_hi;
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+ args.lun_l = lun_lo;
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+ args.lun_h = lun_hi;
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+ args.catch_result = 1;
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+
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+ if ((IEEE1275_CALL_ENTRY_FN (&args) == -1) || (args.catch_result))
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+ {
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+ grub_error (GRUB_ERR_OUT_OF_RANGE, "encode-unit failed\n");
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+ return 0;
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+ }
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+
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+ addr = (void *)args.addr;
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+ *size = args.size;
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+ addr = grub_strdup ((char *)args.addr);
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+ return addr;
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+}
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+
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int
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grub_ieee1275_claim (grub_addr_t addr, grub_size_t size, unsigned int align,
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grub_addr_t *result)
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diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
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index 534406458b2..c93a97e695e 100644
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--- a/include/grub/ieee1275/ieee1275.h
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+++ b/include/grub/ieee1275/ieee1275.h
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@@ -216,6 +216,12 @@ int EXPORT_FUNC(grub_ieee1275_decode_unit4) (grub_ieee1275_ihandle_t ihandle,
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grub_uint32_t *phy_hi,
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grub_uint32_t *lun_lo,
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grub_uint32_t *lun_hi);
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+char *EXPORT_FUNC(grub_ieee1275_encode_uint4) (grub_ieee1275_ihandle_t ihandle,
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+ grub_uint32_t phy_lo,
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+ grub_uint32_t phy_hi,
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+ grub_uint32_t lun_lo,
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+ grub_uint32_t lun_hi,
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+ grub_size_t *size);
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grub_err_t EXPORT_FUNC(grub_claimmap) (grub_addr_t addr, grub_size_t size);
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