grub2/0124-ieee1275-set-address-bus-specific-method.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Eric Snowberg <eric.snowberg@oracle.com>
Date: Mon, 26 Feb 2018 17:34:16 -0800
Subject: [PATCH] ieee1275: set-address bus specific method
IEEE 1275-1994 Standard for Boot (Initialization Configuration)
Firmware: Core Requirements and Practices
E.3.2.2 Bus-specific methods for bus nodes
A package implementing the scsi-2 device type shall implement the
following bus-specific method:
set-address ( unit# target# -- )
Sets the SCSI target number (0x0..0xf) and unit number (0..7) to which
subsequent commands apply.
This function is for devices with #address-cells == 2
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/kern/ieee1275/ieee1275.c | 40 ++++++++++++++++++++++++++++++++++++++
include/grub/ieee1275/ieee1275.h | 3 +++
2 files changed, 43 insertions(+)
diff --git a/grub-core/kern/ieee1275/ieee1275.c b/grub-core/kern/ieee1275/ieee1275.c
index 41503ead090..497f170fb6b 100644
--- a/grub-core/kern/ieee1275/ieee1275.c
+++ b/grub-core/kern/ieee1275/ieee1275.c
@@ -693,3 +693,43 @@ grub_ieee1275_milliseconds (grub_uint32_t *msecs)
*msecs = args.msecs;
return 0;
}
+
+int
+grub_ieee1275_set_address (grub_ieee1275_ihandle_t ihandle,
+ grub_uint32_t target, grub_uint32_t lun)
+{
+ struct set_address
+ {
+ struct grub_ieee1275_common_hdr common;
+ grub_ieee1275_cell_t method;
+ grub_ieee1275_cell_t ihandle;
+ grub_ieee1275_cell_t tgt;
+ grub_ieee1275_cell_t lun;
+ grub_ieee1275_cell_t catch_result;
+ }
+ args;
+
+ INIT_IEEE1275_COMMON (&args.common, "call-method", 4, 1);
+
+ /*
+ * IEEE 1275-1994 Standard for Boot (Initialization Configuration)
+ * Firmware: Core Requirements and Practices
+ * E.3.2.2 Bus-specific methods for bus nodes
+ *
+ * A package implementing the scsi-2 device type shall implement the
+ * following bus-specific method:
+ *
+ * set-address ( unit# target# -- )
+ * Sets the SCSI target number (0x0..0xf) and unit number (0..7) to which
+ * subsequent commands apply.
+ */
+ args.method = (grub_ieee1275_cell_t) "set-address";
+ args.ihandle = ihandle;
+ args.tgt = target;
+ args.lun = lun;
+
+ if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
+ return -1;
+
+ return args.catch_result;
+}
diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
index c93a97e695e..55e920e816f 100644
--- a/include/grub/ieee1275/ieee1275.h
+++ b/include/grub/ieee1275/ieee1275.h
@@ -210,6 +210,9 @@ int EXPORT_FUNC(grub_ieee1275_set_property) (grub_ieee1275_phandle_t phandle,
int EXPORT_FUNC(grub_ieee1275_set_color) (grub_ieee1275_ihandle_t ihandle,
int index, int r, int g, int b);
int EXPORT_FUNC(grub_ieee1275_milliseconds) (grub_uint32_t *msecs);
+int EXPORT_FUNC(grub_ieee1275_set_address) (grub_ieee1275_ihandle_t ihandle,
+ grub_uint32_t target,
+ grub_uint32_t lun);
int EXPORT_FUNC(grub_ieee1275_decode_unit4) (grub_ieee1275_ihandle_t ihandle,
void *addr, grub_size_t size,
grub_uint32_t *phy_lo,