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path: root/drivers/acpi/acpica
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-rw-r--r--drivers/acpi/acpica/aclocal.h22
-rw-r--r--drivers/acpi/acpica/acmacros.h29
-rw-r--r--drivers/acpi/acpica/utxface.c87
3 files changed, 126 insertions, 12 deletions
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 493529a3500a..c816ee675094 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -707,15 +707,18 @@ union acpi_parse_value {
u8 disasm_opcode; /* Subtype used for disassembly */\
char aml_op_name[16]) /* Op name (debug only) */
-#define ACPI_DASM_BUFFER 0x00
-#define ACPI_DASM_RESOURCE 0x01
-#define ACPI_DASM_STRING 0x02
-#define ACPI_DASM_UNICODE 0x03
-#define ACPI_DASM_EISAID 0x04
-#define ACPI_DASM_MATCHOP 0x05
-#define ACPI_DASM_LNOT_PREFIX 0x06
-#define ACPI_DASM_LNOT_SUFFIX 0x07
-#define ACPI_DASM_IGNORE 0x08
+/* Flags for disasm_flags field above */
+
+#define ACPI_DASM_BUFFER 0x00 /* Buffer is a simple data buffer */
+#define ACPI_DASM_RESOURCE 0x01 /* Buffer is a Resource Descriptor */
+#define ACPI_DASM_STRING 0x02 /* Buffer is a ASCII string */
+#define ACPI_DASM_UNICODE 0x03 /* Buffer is a Unicode string */
+#define ACPI_DASM_PLD_METHOD 0x04 /* Buffer is a _PLD method bit-packed buffer */
+#define ACPI_DASM_EISAID 0x05 /* Integer is an EISAID */
+#define ACPI_DASM_MATCHOP 0x06 /* Parent opcode is a Match() operator */
+#define ACPI_DASM_LNOT_PREFIX 0x07 /* Start of a Lnot_equal (etc.) pair of opcodes */
+#define ACPI_DASM_LNOT_SUFFIX 0x08 /* End of a Lnot_equal (etc.) pair of opcodes */
+#define ACPI_DASM_IGNORE 0x09 /* Not used at this time */
/*
* Generic operation (for example: If, While, Store)
@@ -1025,6 +1028,7 @@ struct acpi_port_info {
****************************************************************************/
struct acpi_db_method_info {
+ acpi_handle method;
acpi_handle main_thread_gate;
acpi_handle thread_complete_gate;
acpi_thread_id *threads;
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 832b6198652e..a7f68c47f517 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -277,10 +277,33 @@
/* Bitfields within ACPI registers */
-#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) ((val << pos) & mask)
-#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
+#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \
+ ((val << pos) & mask)
-#define ACPI_INSERT_BITS(target, mask, source) target = ((target & (~(mask))) | (source & mask))
+#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \
+ reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
+
+#define ACPI_INSERT_BITS(target, mask, source) \
+ target = ((target & (~(mask))) | (source & mask))
+
+/* Generic bitfield macros and masks */
+
+#define ACPI_GET_BITS(source_ptr, position, mask) \
+ ((*source_ptr >> position) & mask)
+
+#define ACPI_SET_BITS(target_ptr, position, mask, value) \
+ (*target_ptr |= ((value & mask) << position))
+
+#define ACPI_1BIT_MASK 0x00000001
+#define ACPI_2BIT_MASK 0x00000003
+#define ACPI_3BIT_MASK 0x00000007
+#define ACPI_4BIT_MASK 0x0000000F
+#define ACPI_5BIT_MASK 0x0000001F
+#define ACPI_6BIT_MASK 0x0000003F
+#define ACPI_7BIT_MASK 0x0000007F
+#define ACPI_8BIT_MASK 0x000000FF
+#define ACPI_16BIT_MASK 0x0000FFFF
+#define ACPI_24BIT_MASK 0x00FFFFFF
/*
* An object of type struct acpi_namespace_node can appear in some contexts
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 667229dbcbad..b09632b4f5b3 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -418,3 +418,90 @@ acpi_check_address_range(acpi_adr_space_type space_id,
ACPI_EXPORT_SYMBOL(acpi_check_address_range)
#endif /* !ACPI_ASL_COMPILER */
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_decode_pld_buffer
+ *
+ * PARAMETERS: in_buffer - Buffer returned by _PLD method
+ * length - Length of the in_buffer
+ * return_buffer - Where the decode buffer is returned
+ *
+ * RETURN: Status and the decoded _PLD buffer. User must deallocate
+ * the buffer via ACPI_FREE.
+ *
+ * DESCRIPTION: Decode the bit-packed buffer returned by the _PLD method into
+ * a local struct that is much more useful to an ACPI driver.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_decode_pld_buffer(u8 *in_buffer,
+ acpi_size length, struct acpi_pld_info ** return_buffer)
+{
+ struct acpi_pld_info *pld_info;
+ u32 *buffer = ACPI_CAST_PTR(u32, in_buffer);
+ u32 dword;
+
+ /* Parameter validation */
+
+ if (!in_buffer || !return_buffer || (length < 16)) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ pld_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pld_info));
+ if (!pld_info) {
+ return (AE_NO_MEMORY);
+ }
+
+ /* First 32-bit DWord */
+
+ ACPI_MOVE_32_TO_32(&dword, &buffer[0]);
+ pld_info->revision = ACPI_PLD_GET_REVISION(&dword);
+ pld_info->ignore_color = ACPI_PLD_GET_IGNORE_COLOR(&dword);
+ pld_info->color = ACPI_PLD_GET_COLOR(&dword);
+
+ /* Second 32-bit DWord */
+
+ ACPI_MOVE_32_TO_32(&dword, &buffer[1]);
+ pld_info->width = ACPI_PLD_GET_WIDTH(&dword);
+ pld_info->height = ACPI_PLD_GET_HEIGHT(&dword);
+
+ /* Third 32-bit DWord */
+
+ ACPI_MOVE_32_TO_32(&dword, &buffer[2]);
+ pld_info->user_visible = ACPI_PLD_GET_USER_VISIBLE(&dword);
+ pld_info->dock = ACPI_PLD_GET_DOCK(&dword);
+ pld_info->lid = ACPI_PLD_GET_LID(&dword);
+ pld_info->panel = ACPI_PLD_GET_PANEL(&dword);
+ pld_info->vertical_position = ACPI_PLD_GET_VERTICAL(&dword);
+ pld_info->horizontal_position = ACPI_PLD_GET_HORIZONTAL(&dword);
+ pld_info->shape = ACPI_PLD_GET_SHAPE(&dword);
+ pld_info->group_orientation = ACPI_PLD_GET_ORIENTATION(&dword);
+ pld_info->group_token = ACPI_PLD_GET_TOKEN(&dword);
+ pld_info->group_position = ACPI_PLD_GET_POSITION(&dword);
+ pld_info->bay = ACPI_PLD_GET_BAY(&dword);
+
+ /* Fourth 32-bit DWord */
+
+ ACPI_MOVE_32_TO_32(&dword, &buffer[3]);
+ pld_info->ejectable = ACPI_PLD_GET_EJECTABLE(&dword);
+ pld_info->ospm_eject_required = ACPI_PLD_GET_OSPM_EJECT(&dword);
+ pld_info->cabinet_number = ACPI_PLD_GET_CABINET(&dword);
+ pld_info->card_cage_number = ACPI_PLD_GET_CARD_CAGE(&dword);
+ pld_info->reference = ACPI_PLD_GET_REFERENCE(&dword);
+ pld_info->rotation = ACPI_PLD_GET_ROTATION(&dword);
+ pld_info->order = ACPI_PLD_GET_ORDER(&dword);
+
+ if (length >= ACPI_PLD_BUFFER_SIZE) {
+
+ /* Fifth 32-bit DWord (Revision 2 of _PLD) */
+
+ ACPI_MOVE_32_TO_32(&dword, &buffer[4]);
+ pld_info->vertical_offset = ACPI_PLD_GET_VERT_OFFSET(&dword);
+ pld_info->horizontal_offset = ACPI_PLD_GET_HORIZ_OFFSET(&dword);
+ }
+
+ *return_buffer = pld_info;
+ return (AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_decode_pld_buffer)
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 00:50:00 +0300