ACPI 5.0: Support for GeneralPurposeIo and GenericSerialBus operation region

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h
index f895a24..f467d49 100644 (file)
--- a/drivers/acpi/acpica/acconfig.h
+++ b/drivers/acpi/acpica/acconfig.h
@@ -202,9 +202,10 @@
 #define ACPI_RSDP_CHECKSUM_LENGTH       20
 #define ACPI_RSDP_XCHECKSUM_LENGTH      36
 
-/* SMBus and IPMI bidirectional buffer size */
+/* SMBus, GSBus and IPMI bidirectional buffer size */
 
 #define ACPI_SMBUS_BUFFER_SIZE          34
+#define ACPI_GSBUS_BUFFER_SIZE          34
 #define ACPI_IPMI_BUFFER_SIZE           66
 
 /* _sx_d and _sx_w control methods */

diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index adf7a71..c7db80e 100644 (file)
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -466,13 +466,16 @@ typedef enum {
  * access_as keyword
  */
 typedef enum {
-       AML_FIELD_ATTRIB_SMB_QUICK = 0x02,
-       AML_FIELD_ATTRIB_SMB_SEND_RCV = 0x04,
-       AML_FIELD_ATTRIB_SMB_BYTE = 0x06,
-       AML_FIELD_ATTRIB_SMB_WORD = 0x08,
-       AML_FIELD_ATTRIB_SMB_BLOCK = 0x0A,
-       AML_FIELD_ATTRIB_SMB_WORD_CALL = 0x0C,
-       AML_FIELD_ATTRIB_SMB_BLOCK_CALL = 0x0D
+       AML_FIELD_ATTRIB_QUICK = 0x02,
+       AML_FIELD_ATTRIB_SEND_RCV = 0x04,
+       AML_FIELD_ATTRIB_BYTE = 0x06,
+       AML_FIELD_ATTRIB_WORD = 0x08,
+       AML_FIELD_ATTRIB_BLOCK = 0x0A,
+       AML_FIELD_ATTRIB_MULTIBYTE = 0x0B,
+       AML_FIELD_ATTRIB_WORD_CALL = 0x0C,
+       AML_FIELD_ATTRIB_BLOCK_CALL = 0x0D,
+       AML_FIELD_ATTRIB_RAW_BYTES = 0x0E,
+       AML_FIELD_ATTRIB_RAW_PROCESS = 0x0F
 } AML_ACCESS_ATTRIBUTE;
 
 /* Bit fields in the AML method_flags byte */

diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index 0bde223..3aeec02 100644 (file)
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -100,18 +100,25 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
                   (obj_desc->field.region_obj->region.space_id ==
                    ACPI_ADR_SPACE_SMBUS
                    || obj_desc->field.region_obj->region.space_id ==
+                   ACPI_ADR_SPACE_GSBUS
+                   || obj_desc->field.region_obj->region.space_id ==
                    ACPI_ADR_SPACE_IPMI)) {
                /*
-                * This is an SMBus or IPMI read. We must create a buffer to hold
+                * This is an SMBus, GSBus or IPMI read. We must create a buffer to hold
                 * the data and then directly access the region handler.
                 *
-                * Note: Smbus protocol value is passed in upper 16-bits of Function
+                * Note: SMBus and GSBus protocol value is passed in upper 16-bits of Function
                 */
                if (obj_desc->field.region_obj->region.space_id ==
                    ACPI_ADR_SPACE_SMBUS) {
                        length = ACPI_SMBUS_BUFFER_SIZE;
                        function =
                            ACPI_READ | (obj_desc->field.attribute << 16);
+               } else if (obj_desc->field.region_obj->region.space_id ==
+                          ACPI_ADR_SPACE_GSBUS) {
+                       length = ACPI_GSBUS_BUFFER_SIZE;
+                       function =
+                           ACPI_READ | (obj_desc->field.attribute << 16);
                } else {        /* IPMI */
 
                        length = ACPI_IPMI_BUFFER_SIZE;
@@ -248,21 +255,23 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
                   (obj_desc->field.region_obj->region.space_id ==
                    ACPI_ADR_SPACE_SMBUS
                    || obj_desc->field.region_obj->region.space_id ==
+                   ACPI_ADR_SPACE_GSBUS
+                   || obj_desc->field.region_obj->region.space_id ==
                    ACPI_ADR_SPACE_IPMI)) {
                /*
-                * This is an SMBus or IPMI write. We will bypass the entire field
+                * This is an SMBus, GSBus or IPMI write. We will bypass the entire field
                 * mechanism and handoff the buffer directly to the handler. For
                 * these address spaces, the buffer is bi-directional; on a write,
                 * return data is returned in the same buffer.
                 *
                 * Source must be a buffer of sufficient size:
-                * ACPI_SMBUS_BUFFER_SIZE or ACPI_IPMI_BUFFER_SIZE.
+                * ACPI_SMBUS_BUFFER_SIZE, ACPI_GSBUS_BUFFER_SIZE, or ACPI_IPMI_BUFFER_SIZE.
                 *
-                * Note: SMBus protocol type is passed in upper 16-bits of Function
+                * Note: SMBus and GSBus protocol type is passed in upper 16-bits of Function
                 */
                if (source_desc->common.type != ACPI_TYPE_BUFFER) {
                        ACPI_ERROR((AE_INFO,
-                                   "SMBus or IPMI write requires Buffer, found type %s",
+                                   "SMBus/IPMI/GenericSerialBus write requires Buffer, found type %s",
                                    acpi_ut_get_object_type_name(source_desc)));
 
                        return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
@@ -273,6 +282,11 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
                        length = ACPI_SMBUS_BUFFER_SIZE;
                        function =
                            ACPI_WRITE | (obj_desc->field.attribute << 16);
+               } else if (obj_desc->field.region_obj->region.space_id ==
+                          ACPI_ADR_SPACE_GSBUS) {
+                       length = ACPI_GSBUS_BUFFER_SIZE;
+                       function =
+                           ACPI_WRITE | (obj_desc->field.attribute << 16);
                } else {        /* IPMI */
 
                        length = ACPI_IPMI_BUFFER_SIZE;
@@ -281,7 +295,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 
                if (source_desc->buffer.length < length) {
                        ACPI_ERROR((AE_INFO,
-                                   "SMBus or IPMI write requires Buffer of length %u, found length %u",
+                                   "SMBus/IPMI/GenericSerialBus write requires Buffer of length %u, found length %u",
                                    length, source_desc->buffer.length));
 
                        return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);

diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index cc9c5df..5b76c11 100644 (file)
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -131,10 +131,11 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
        }
 
        /*
-        * Exit now for SMBus or IPMI address space, it has a non-linear
+        * Exit now for SMBus, GSBus or IPMI address space, it has a non-linear
         * address space and the request cannot be directly validated
         */
        if (space_id == ACPI_ADR_SPACE_SMBUS ||
+           space_id == ACPI_ADR_SPACE_GSBUS ||
            space_id == ACPI_ADR_SPACE_IPMI) {
 
                /* SMBus or IPMI has a non-linear address space */

diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index 8b087e2..6fd56d5 100644 (file)
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -171,7 +171,9 @@ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
        "SMBus",
        "SystemCMOS",
        "PCIBARTarget",
-       "IPMI"
+       "IPMI",
+       "GeneralPurposeIo",
+       "GenericSerialBus"
 };
 
 char *acpi_ut_get_region_name(u8 space_id)

diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index d088c90..d5dee7c 100644 (file)
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -712,8 +712,10 @@ typedef u8 acpi_adr_space_type;
 #define ACPI_ADR_SPACE_CMOS             (acpi_adr_space_type) 5
 #define ACPI_ADR_SPACE_PCI_BAR_TARGET   (acpi_adr_space_type) 6
 #define ACPI_ADR_SPACE_IPMI             (acpi_adr_space_type) 7
+#define ACPI_ADR_SPACE_GPIO             (acpi_adr_space_type) 8
+#define ACPI_ADR_SPACE_GSBUS            (acpi_adr_space_type) 9
 
-#define ACPI_NUM_PREDEFINED_REGIONS     8
+#define ACPI_NUM_PREDEFINED_REGIONS     10
 
 /*
  * Special Address Spaces