ACPI 5.0: Support for all new resource descriptors

FixedDMA, GPIO descriptors, SerialBus descriptors

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

1 files changed, 242 insertions, 34 deletions

diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index 6ffd3a8bdaa5..cd7fbbf57f30 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -43,7 +43,7 @@
 
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include "amlresrc.h"
+#include "acresrc.h"
 
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utresrc")
@@ -154,6 +154,138 @@ const char *acpi_gbl_typ_decode[] = {
 	"TypeF"
 };
 
+const char *acpi_gbl_ppc_decode[] = {
+	"PullDefault",
+	"PullUp",
+	"PullDown",
+	"PullNone"
+};
+
+const char *acpi_gbl_ior_decode[] = {
+	"IoRestrictionNone",
+	"IoRestrictionInputOnly",
+	"IoRestrictionOutputOnly",
+	"IoRestrictionNoneAndPreserve"
+};
+
+const char *acpi_gbl_dts_decode[] = {
+	"Width8bit",
+	"Width16bit",
+	"Width32bit",
+	"Width64bit",
+	"Width128bit",
+	"Width256bit",
+};
+
+/* GPIO connection type */
+
+const char *acpi_gbl_ct_decode[] = {
+	"Interrupt",
+	"I/O"
+};
+
+/* Serial bus type */
+
+const char *acpi_gbl_sbt_decode[] = {
+	"/* UNKNOWN serial bus type */",
+	"I2C",
+	"SPI",
+	"UART"
+};
+
+/* I2C serial bus access mode */
+
+const char *acpi_gbl_am_decode[] = {
+	"AddressingMode7Bit",
+	"AddressingMode10Bit"
+};
+
+/* I2C serial bus slave mode */
+
+const char *acpi_gbl_sm_decode[] = {
+	"ControllerInitiated",
+	"DeviceInitiated"
+};
+
+/* SPI serial bus wire mode */
+
+const char *acpi_gbl_wm_decode[] = {
+	"FourWireMode",
+	"ThreeWireMode"
+};
+
+/* SPI serial clock phase */
+
+const char *acpi_gbl_cph_decode[] = {
+	"ClockPhaseFirst",
+	"ClockPhaseSecond"
+};
+
+/* SPI serial bus clock polarity */
+
+const char *acpi_gbl_cpo_decode[] = {
+	"ClockPolarityLow",
+	"ClockPolarityHigh"
+};
+
+/* SPI serial bus device polarity */
+
+const char *acpi_gbl_dp_decode[] = {
+	"PolarityLow",
+	"PolarityHigh"
+};
+
+/* UART serial bus endian */
+
+const char *acpi_gbl_ed_decode[] = {
+	"LittleEndian",
+	"BigEndian"
+};
+
+/* UART serial bus bits per byte */
+
+const char *acpi_gbl_bpb_decode[] = {
+	"DataBitsFive",
+	"DataBitsSix",
+	"DataBitsSeven",
+	"DataBitsEight",
+	"DataBitsNine",
+	"/* UNKNOWN Bits per byte */",
+	"/* UNKNOWN Bits per byte */",
+	"/* UNKNOWN Bits per byte */"
+};
+
+/* UART serial bus stop bits */
+
+const char *acpi_gbl_sb_decode[] = {
+	"StopBitsNone",
+	"StopBitsOne",
+	"StopBitsOnePlusHalf",
+	"StopBitsTwo"
+};
+
+/* UART serial bus flow control */
+
+const char *acpi_gbl_fc_decode[] = {
+	"FlowControlNone",
+	"FlowControlHardware",
+	"FlowControlXON",
+	"/* UNKNOWN flow control keyword */"
+};
+
+/* UART serial bus parity type */
+
+const char *acpi_gbl_pt_decode[] = {
+	"ParityTypeNone",
+	"ParityTypeEven",
+	"ParityTypeOdd",
+	"ParityTypeMark",
+	"ParityTypeSpace",
+	"/* UNKNOWN parity keyword */",
+	"/* UNKNOWN parity keyword */",
+	"/* UNKNOWN parity keyword */"
+};
+
 #endif
 
 /*
@@ -173,7 +305,7 @@ const u8 acpi_gbl_resource_aml_sizes[] = {
 	ACPI_AML_SIZE_SMALL(struct aml_resource_end_dependent),
 	ACPI_AML_SIZE_SMALL(struct aml_resource_io),
 	ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_io),
-	0,
+	ACPI_AML_SIZE_SMALL(struct aml_resource_fixed_dma),
 	0,
 	0,
 	0,
@@ -193,7 +325,17 @@ const u8 acpi_gbl_resource_aml_sizes[] = {
 	ACPI_AML_SIZE_LARGE(struct aml_resource_address16),
 	ACPI_AML_SIZE_LARGE(struct aml_resource_extended_irq),
 	ACPI_AML_SIZE_LARGE(struct aml_resource_address64),
-	ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64)
+	ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64),
+	ACPI_AML_SIZE_LARGE(struct aml_resource_gpio),
+	0,
+	ACPI_AML_SIZE_LARGE(struct aml_resource_common_serialbus),
+};
+
+const u8 acpi_gbl_resource_aml_serial_bus_sizes[] = {
+	0,
+	ACPI_AML_SIZE_LARGE(struct aml_resource_i2c_serialbus),
+	ACPI_AML_SIZE_LARGE(struct aml_resource_spi_serialbus),
+	ACPI_AML_SIZE_LARGE(struct aml_resource_uart_serialbus),
 };
 
 /*
@@ -209,35 +351,49 @@ static const u8 acpi_gbl_resource_types[] = {
 	0,
 	0,
 	0,
-	ACPI_SMALL_VARIABLE_LENGTH,
-	ACPI_FIXED_LENGTH,
-	ACPI_SMALL_VARIABLE_LENGTH,
-	ACPI_FIXED_LENGTH,
-	ACPI_FIXED_LENGTH,
-	ACPI_FIXED_LENGTH,
-	0,
+	ACPI_SMALL_VARIABLE_LENGTH,	/* 04 IRQ */
+	ACPI_FIXED_LENGTH,	/* 05 DMA */
+	ACPI_SMALL_VARIABLE_LENGTH,	/* 06 start_dependent_functions */
+	ACPI_FIXED_LENGTH,	/* 07 end_dependent_functions */
+	ACPI_FIXED_LENGTH,	/* 08 IO */
+	ACPI_FIXED_LENGTH,	/* 09 fixed_iO */
+	ACPI_FIXED_LENGTH,	/* 0_a fixed_dMA */
 	0,
 	0,
 	0,
-	ACPI_VARIABLE_LENGTH,
-	ACPI_FIXED_LENGTH,
+	ACPI_VARIABLE_LENGTH,	/* 0_e vendor_short */
+	ACPI_FIXED_LENGTH,	/* 0_f end_tag */
 
 	/* Large descriptors */
 
 	0,
-	ACPI_FIXED_LENGTH,
-	ACPI_FIXED_LENGTH,
+	ACPI_FIXED_LENGTH,	/* 01 Memory24 */
+	ACPI_FIXED_LENGTH,	/* 02 generic_register */
 	0,
-	ACPI_VARIABLE_LENGTH,
-	ACPI_FIXED_LENGTH,
-	ACPI_FIXED_LENGTH,
-	ACPI_VARIABLE_LENGTH,
-	ACPI_VARIABLE_LENGTH,
-	ACPI_VARIABLE_LENGTH,
-	ACPI_VARIABLE_LENGTH,
-	ACPI_FIXED_LENGTH
+	ACPI_VARIABLE_LENGTH,	/* 04 vendor_long */
+	ACPI_FIXED_LENGTH,	/* 05 Memory32 */
+	ACPI_FIXED_LENGTH,	/* 06 memory32_fixed */
+	ACPI_VARIABLE_LENGTH,	/* 07 Dword* address */
+	ACPI_VARIABLE_LENGTH,	/* 08 Word* address */
+	ACPI_VARIABLE_LENGTH,	/* 09 extended_iRQ */
+	ACPI_VARIABLE_LENGTH,	/* 0_a Qword* address */
+	ACPI_FIXED_LENGTH,	/* 0_b Extended* address */
+	ACPI_VARIABLE_LENGTH,	/* 0_c Gpio* */
+	0,
+	ACPI_VARIABLE_LENGTH	/* 0_e *serial_bus */
 };
 
+/*
+ * For the i_aSL compiler/disassembler, we don't want any error messages
+ * because the disassembler uses the resource validation code to determine
+ * if Buffer objects are actually Resource Templates.
+ */
+#ifdef ACPI_ASL_COMPILER
+#define ACPI_RESOURCE_ERROR(plist)
+#else
+#define ACPI_RESOURCE_ERROR(plist)  ACPI_ERROR(plist)
+#endif
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_walk_aml_resources
@@ -265,6 +421,7 @@ acpi_ut_walk_aml_resources(u8 * aml,
 	u8 resource_index;
 	u32 length;
 	u32 offset = 0;
+	u8 end_tag[2] = { 0x79, 0x00 };
 
 	ACPI_FUNCTION_TRACE(ut_walk_aml_resources);
 
@@ -286,6 +443,10 @@ acpi_ut_walk_aml_resources(u8 * aml,
 
 		status = acpi_ut_validate_resource(aml, &resource_index);
 		if (ACPI_FAILURE(status)) {
+			/*
+			 * Exit on failure. Cannot continue because the descriptor length
+			 * may be bogus also.
+			 */
 			return_ACPI_STATUS(status);
 		}
 
@@ -300,7 +461,7 @@ acpi_ut_walk_aml_resources(u8 * aml,
 			    user_function(aml, length, offset, resource_index,
 					  context);
 			if (ACPI_FAILURE(status)) {
-				return (status);
+				return_ACPI_STATUS(status);
 			}
 		}
 
@@ -333,7 +494,19 @@ acpi_ut_walk_aml_resources(u8 * aml,
 
 	/* Did not find an end_tag descriptor */
 
-	return (AE_AML_NO_RESOURCE_END_TAG);
+	if (user_function) {
+
+		/* Insert an end_tag anyway. acpi_rs_get_list_length always leaves room */
+
+		(void)acpi_ut_validate_resource(end_tag, &resource_index);
+		status =
+		    user_function(end_tag, 2, offset, resource_index, context);
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
+	}
+
+	return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
 }
 
 /*******************************************************************************
@@ -354,6 +527,7 @@ acpi_ut_walk_aml_resources(u8 * aml,
 
 acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 {
+	union aml_resource *aml_resource;
 	u8 resource_type;
 	u8 resource_index;
 	acpi_rs_length resource_length;
@@ -375,7 +549,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 		/* Verify the large resource type (name) against the max */
 
 		if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) {
-			return (AE_AML_INVALID_RESOURCE_TYPE);
+			goto invalid_resource;
 		}
 
 		/*
@@ -392,15 +566,17 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 		    ((resource_type & ACPI_RESOURCE_NAME_SMALL_MASK) >> 3);
 	}
 
-	/* Check validity of the resource type, zero indicates name is invalid */
-
+	/*
+	 * Check validity of the resource type, via acpi_gbl_resource_types. Zero
+	 * indicates an invalid resource.
+	 */
 	if (!acpi_gbl_resource_types[resource_index]) {
-		return (AE_AML_INVALID_RESOURCE_TYPE);
+		goto invalid_resource;
 	}
 
 	/*
-	 * 2) Validate the resource_length field. This ensures that the length
-	 *    is at least reasonable, and guarantees that it is non-zero.
+	 * Validate the resource_length field. This ensures that the length
+	 * is at least reasonable, and guarantees that it is non-zero.
 	 */
 	resource_length = acpi_ut_get_resource_length(aml);
 	minimum_resource_length = acpi_gbl_resource_aml_sizes[resource_index];
@@ -413,7 +589,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 		/* Fixed length resource, length must match exactly */
 
 		if (resource_length != minimum_resource_length) {
-			return (AE_AML_BAD_RESOURCE_LENGTH);
+			goto bad_resource_length;
 		}
 		break;
 
@@ -422,7 +598,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 		/* Variable length resource, length must be at least the minimum */
 
 		if (resource_length < minimum_resource_length) {
-			return (AE_AML_BAD_RESOURCE_LENGTH);
+			goto bad_resource_length;
 		}
 		break;
 
@@ -432,7 +608,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 
 		if ((resource_length > minimum_resource_length) ||
 		    (resource_length < (minimum_resource_length - 1))) {
-			return (AE_AML_BAD_RESOURCE_LENGTH);
+			goto bad_resource_length;
 		}
 		break;
 
@@ -440,7 +616,23 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 
 		/* Shouldn't happen (because of validation earlier), but be sure */
 
-		return (AE_AML_INVALID_RESOURCE_TYPE);
+		goto invalid_resource;
+	}
+
+	aml_resource = ACPI_CAST_PTR(union aml_resource, aml);
+	if (resource_type == ACPI_RESOURCE_NAME_SERIAL_BUS) {
+
+		/* Validate the bus_type field */
+
+		if ((aml_resource->common_serial_bus.type == 0) ||
+		    (aml_resource->common_serial_bus.type >
+		     AML_RESOURCE_MAX_SERIALBUSTYPE)) {
+			ACPI_RESOURCE_ERROR((AE_INFO,
+					     "Invalid/unsupported SerialBus resource descriptor: BusType 0x%2.2X",
+					     aml_resource->common_serial_bus.
+					     type));
+			return (AE_AML_INVALID_RESOURCE_TYPE);
+		}
 	}
 
 	/* Optionally return the resource table index */
@@ -450,6 +642,22 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index)
 	}
 
 	return (AE_OK);
+
+      invalid_resource:
+
+	ACPI_RESOURCE_ERROR((AE_INFO,
+			     "Invalid/unsupported resource descriptor: Type 0x%2.2X",
+			     resource_type));
+	return (AE_AML_INVALID_RESOURCE_TYPE);
+
+      bad_resource_length:
+
+	ACPI_RESOURCE_ERROR((AE_INFO,
+			     "Invalid resource descriptor length: Type "
+			     "0x%2.2X, Length 0x%4.4X, MinLength 0x%4.4X",
+			     resource_type, resource_length,
+			     minimum_resource_length));
+	return (AE_AML_BAD_RESOURCE_LENGTH);
 }
 
 /*******************************************************************************