[PATCH 49/140] ACPICA: Temporary fix for BankValue parameter

Len Brown
2007-02-07T18:54:04Z

From: Bob Moore <robert.moore@intel.com>

Temporary fix for BankValue parameter of a Bank
Field to support all constant values, including Zero
and One. Must eventually be converted to a full TermArg
evaluation.

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/dispatcher/dsfield.c | 30 ++++++++++++++++++++++++++++--
1 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/dispatcher/dsfield.c b/drivers/acpi/dispatcher/dsfield.c
index a6d77ef..379dd71 100644
--- a/drivers/acpi/dispatcher/dsfield.c
+++ b/drivers/acpi/dispatcher/dsfield.c
@@ -133,7 +133,8 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
}
}

- /* We could put the returned object (Node) on the object stack for later,
+ /*
+ * We could put the returned object (Node) on the object stack for later,
* but for now, we will put it in the "op" object that the parser uses,
* so we can get it again at the end of this scope
*/
@@ -514,8 +515,33 @@ acpi_ds_create_bank_field(union acpi_parse_object *op,

/* Third arg is the bank_value */

+ /* TBD: This arg is a term_arg, not a constant, and must be evaluated */
+
arg = arg->common.next;
- info.bank_value = (u32) arg->common.value.integer;
+
+ /* Currently, only the following constants are supported */
+
+ switch (arg->common.aml_opcode) {
+ case AML_ZERO_OP:
+ info.bank_value = 0;
+ break;
+
+ case AML_ONE_OP:
+ info.bank_value = 1;
+ break;
+
+ case AML_BYTE_OP:
+ case AML_WORD_OP:
+ case AML_DWORD_OP:
+ case AML_QWORD_OP:
+ info.bank_value = (u32) arg->common.value.integer;
+ break;
+
+ default:
+ info.bank_value = 0;
+ ACPI_ERROR((AE_INFO,
+ "Non-constant BankValue for BankField is not implemented"));
+ }

/* Fourth arg is the field flags */

--
1.5.0.rc3.39.gec804