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ieee1275: set-address bus specific method

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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>
This commit is contained in:
Eric Snowberg 2018-02-26 17:34:16 -08:00 committed by Daniel Kiper
parent 820c64e4c0
commit f02037afe3
2 changed files with 43 additions and 0 deletions
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40
grub-core/kern/ieee1275/ieee1275.c
View file

@ -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;
}

3
include/grub/ieee1275/ieee1275.h
View file

@ -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,