ACPICA: ACPI 6.2: Add support for PinFunction() resource
ACPICA commit 6bbc6357f7061f1243601adde0ea45f7a89274e0
ACPI 6.2 introduced a new resource that is used to describe how certain
pins are muxed for a device. The ASL syntax of this new resource looks
like below:
PinFunction(Shared, PinConfig, FunctionNumber, ResourceSource,
ResourceSourceIndex, ResourceUsage, DescriptorName,
VendorData) {Pin List}
Which is pretty similar to GpioIo()/GpioInt() resources.
Teach ACPICA about this new resource.
Link: https://github.com/acpica/acpica/commit/6bbc6357
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
zero-colors
Mika Westerberg
Rafael J. Wysocki
parent
c7a1dfb95e
commit
2b72693066
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@ -1142,6 +1142,7 @@ struct acpi_port_info {
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#define ACPI_RESOURCE_NAME_ADDRESS64 0x8A
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#define ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 0x8B
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#define ACPI_RESOURCE_NAME_GPIO 0x8C
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#define ACPI_RESOURCE_NAME_PIN_FUNCTION 0x8D
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#define ACPI_RESOURCE_NAME_SERIAL_BUS 0x8E
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#define ACPI_RESOURCE_NAME_LARGE_MAX 0x8E
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@ -329,6 +329,7 @@ extern struct acpi_rsconvert_info acpi_rs_convert_fixed_dma[];
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extern struct acpi_rsconvert_info acpi_rs_convert_i2c_serial_bus[];
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extern struct acpi_rsconvert_info acpi_rs_convert_spi_serial_bus[];
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extern struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[];
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extern struct acpi_rsconvert_info acpi_rs_convert_pin_function[];
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/* These resources require separate get/set tables */
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@ -372,6 +373,7 @@ extern struct acpi_rsdump_info acpi_rs_dump_ext_address64[];
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extern struct acpi_rsdump_info acpi_rs_dump_ext_irq[];
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extern struct acpi_rsdump_info acpi_rs_dump_generic_reg[];
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extern struct acpi_rsdump_info acpi_rs_dump_gpio[];
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extern struct acpi_rsdump_info acpi_rs_dump_pin_function[];
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extern struct acpi_rsdump_info acpi_rs_dump_fixed_dma[];
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extern struct acpi_rsdump_info acpi_rs_dump_common_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[];
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@ -65,6 +65,7 @@
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#define ACPI_RESTAG_DRIVESTRENGTH "_DRS"
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#define ACPI_RESTAG_ENDIANNESS "_END"
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#define ACPI_RESTAG_FLOWCONTROL "_FLC"
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#define ACPI_RESTAG_FUNCTION "_FUN"
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#define ACPI_RESTAG_GRANULARITY "_GRA"
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#define ACPI_RESTAG_INTERRUPT "_INT"
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#define ACPI_RESTAG_INTERRUPTLEVEL "_LL_" /* active_lo(1), active_hi(0) */
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@ -404,6 +405,26 @@ struct aml_resource_uart_serialbus {
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#define AML_RESOURCE_UART_TYPE_REVISION 1 /* ACPI 5.0 */
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#define AML_RESOURCE_UART_MIN_DATA_LEN 10
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struct aml_resource_pin_function {
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AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
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u16 flags;
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u8 pin_config;
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u16 function_number;
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u16 pin_table_offset;
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u8 res_source_index;
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u16 res_source_offset;
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u16 vendor_offset;
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u16 vendor_length;
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/*
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* Optional fields follow immediately:
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* 1) PIN list (Words)
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* 2) Resource Source String
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* 3) Vendor Data bytes
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*/
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};
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#define AML_RESOURCE_PIN_FUNCTION_REVISION 1 /* ACPI 6.2 */
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/* restore default alignment */
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#pragma pack()
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@ -446,6 +467,7 @@ union aml_resource {
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struct aml_resource_spi_serialbus spi_serial_bus;
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struct aml_resource_uart_serialbus uart_serial_bus;
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struct aml_resource_common_serialbus common_serial_bus;
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struct aml_resource_pin_function pin_function;
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/* Utility overlays */
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@ -340,6 +340,22 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
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break;
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case ACPI_RESOURCE_TYPE_PIN_FUNCTION:
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total_size = (acpi_rs_length)(total_size +
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(resource->data.
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pin_function.
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pin_table_length * 2) +
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resource->data.
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pin_function.
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resource_source.
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string_length +
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resource->data.
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pin_function.
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vendor_length);
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break;
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case ACPI_RESOURCE_TYPE_SERIAL_BUS:
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total_size =
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@ -537,6 +553,24 @@ acpi_rs_get_list_length(u8 *aml_buffer,
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}
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break;
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case ACPI_RESOURCE_NAME_PIN_FUNCTION:
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/* Vendor data is optional */
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if (aml_resource->pin_function.vendor_length) {
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extra_struct_bytes +=
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aml_resource->pin_function.vendor_offset -
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aml_resource->pin_function.
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pin_table_offset +
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aml_resource->pin_function.vendor_length;
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} else {
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extra_struct_bytes +=
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aml_resource->large_header.resource_length +
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sizeof(struct aml_resource_large_header) -
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aml_resource->pin_function.pin_table_offset;
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}
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break;
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case ACPI_RESOURCE_NAME_SERIAL_BUS:
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minimum_aml_resource_length =
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@ -314,6 +314,29 @@ struct acpi_rsdump_info acpi_rs_dump_gpio[16] = {
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NULL},
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};
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struct acpi_rsdump_info acpi_rs_dump_pin_function[10] = {
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{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_function),
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"PinFunction", NULL},
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{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_function.revision_id),
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"RevisionId", NULL},
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{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_function.pin_config), "PinConfig",
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acpi_gbl_ppc_decode},
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{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_function.sharable), "Sharing",
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acpi_gbl_shr_decode},
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{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.function_number),
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"FunctionNumber", NULL},
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{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_function.resource_source),
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"ResourceSource", NULL},
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{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.pin_table_length),
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"PinTableLength", NULL},
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{ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(pin_function.pin_table), "PinTable",
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NULL},
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{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_function.vendor_length),
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"VendorLength", NULL},
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{ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_function.vendor_data),
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"VendorData", NULL},
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};
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struct acpi_rsdump_info acpi_rs_dump_fixed_dma[4] = {
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{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_dma),
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"FixedDma", NULL},
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@ -80,6 +80,7 @@ struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
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acpi_rs_convert_gpio, /* 0x11, ACPI_RESOURCE_TYPE_GPIO */
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acpi_rs_convert_fixed_dma, /* 0x12, ACPI_RESOURCE_TYPE_FIXED_DMA */
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NULL, /* 0x13, ACPI_RESOURCE_TYPE_SERIAL_BUS - Use subtype table below */
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acpi_rs_convert_pin_function, /* 0x14, ACPI_RESOURCE_TYPE_PIN_FUNCTION */
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};
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/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
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@ -119,7 +120,7 @@ struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
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acpi_rs_convert_address64, /* 0x0A, ACPI_RESOURCE_NAME_ADDRESS64 */
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acpi_rs_convert_ext_address64, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64 */
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acpi_rs_convert_gpio, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */
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NULL, /* 0x0D, Reserved */
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acpi_rs_convert_pin_function, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */
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NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use subtype table below */
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};
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@ -157,6 +158,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
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acpi_rs_dump_gpio, /* ACPI_RESOURCE_TYPE_GPIO */
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acpi_rs_dump_fixed_dma, /* ACPI_RESOURCE_TYPE_FIXED_DMA */
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NULL, /* ACPI_RESOURCE_TYPE_SERIAL_BUS */
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acpi_rs_dump_pin_function, /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */
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};
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struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = {
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@ -193,6 +195,7 @@ const u8 acpi_gbl_aml_resource_sizes[] = {
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sizeof(struct aml_resource_gpio), /* ACPI_RESOURCE_TYPE_GPIO */
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sizeof(struct aml_resource_fixed_dma), /* ACPI_RESOURCE_TYPE_FIXED_DMA */
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sizeof(struct aml_resource_common_serialbus), /* ACPI_RESOURCE_TYPE_SERIAL_BUS */
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sizeof(struct aml_resource_pin_function), /* ACPI_RESOURCE_TYPE_PIN_FUNCTION */
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};
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const u8 acpi_gbl_resource_struct_sizes[] = {
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@ -230,6 +233,7 @@ const u8 acpi_gbl_resource_struct_sizes[] = {
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ACPI_RS_SIZE(struct acpi_resource_address64),
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ACPI_RS_SIZE(struct acpi_resource_extended_address64),
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ACPI_RS_SIZE(struct acpi_resource_gpio),
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ACPI_RS_SIZE(struct acpi_resource_pin_function),
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ACPI_RS_SIZE(struct acpi_resource_common_serialbus)
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};
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@ -145,6 +145,82 @@ struct acpi_rsconvert_info acpi_rs_convert_gpio[18] = {
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0},
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};
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/*******************************************************************************
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*
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* acpi_rs_convert_pinfunction
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*
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******************************************************************************/
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struct acpi_rsconvert_info acpi_rs_convert_pin_function[13] = {
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_FUNCTION,
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ACPI_RS_SIZE(struct acpi_resource_pin_function),
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ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_function)},
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_FUNCTION,
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sizeof(struct aml_resource_pin_function),
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0},
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{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_function.revision_id),
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AML_OFFSET(pin_function.revision_id),
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1},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_function.sharable),
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AML_OFFSET(pin_function.flags),
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0},
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{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_function.pin_config),
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AML_OFFSET(pin_function.pin_config),
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1},
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{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.pin_function.function_number),
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AML_OFFSET(pin_function.function_number),
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2},
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/* Pin Table */
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/*
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* It is OK to use GPIO operations here because none of them refer GPIO
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* structures directly but instead use offsets given here.
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*/
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{ACPI_RSC_COUNT_GPIO_PIN,
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ACPI_RS_OFFSET(data.pin_function.pin_table_length),
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AML_OFFSET(pin_function.pin_table_offset),
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AML_OFFSET(pin_function.res_source_offset)},
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{ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.pin_function.pin_table),
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AML_OFFSET(pin_function.pin_table_offset),
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0},
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/* Resource Source */
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{ACPI_RSC_MOVE8,
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ACPI_RS_OFFSET(data.pin_function.resource_source.index),
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AML_OFFSET(pin_function.res_source_index),
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1},
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{ACPI_RSC_COUNT_GPIO_RES,
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ACPI_RS_OFFSET(data.pin_function.resource_source.string_length),
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AML_OFFSET(pin_function.res_source_offset),
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AML_OFFSET(pin_function.vendor_offset)},
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{ACPI_RSC_MOVE_GPIO_RES,
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ACPI_RS_OFFSET(data.pin_function.resource_source.string_ptr),
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AML_OFFSET(pin_function.res_source_offset),
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0},
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/* Vendor Data */
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{ACPI_RSC_COUNT_GPIO_VEN,
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ACPI_RS_OFFSET(data.pin_function.vendor_length),
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AML_OFFSET(pin_function.vendor_length),
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1},
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{ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.pin_function.vendor_data),
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AML_OFFSET(pin_function.vendor_offset),
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0},
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};
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/*******************************************************************************
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*
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* acpi_rs_convert_i2c_serial_bus
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@ -332,7 +332,7 @@ const u8 acpi_gbl_resource_aml_sizes[] = {
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ACPI_AML_SIZE_LARGE(struct aml_resource_address64),
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ACPI_AML_SIZE_LARGE(struct aml_resource_extended_address64),
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ACPI_AML_SIZE_LARGE(struct aml_resource_gpio),
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0,
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ACPI_AML_SIZE_LARGE(struct aml_resource_pin_function),
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ACPI_AML_SIZE_LARGE(struct aml_resource_common_serialbus),
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};
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@ -384,7 +384,7 @@ static const u8 acpi_gbl_resource_types[] = {
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ACPI_VARIABLE_LENGTH, /* 0A Qword* address */
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ACPI_FIXED_LENGTH, /* 0B Extended* address */
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ACPI_VARIABLE_LENGTH, /* 0C Gpio* */
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0,
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ACPI_VARIABLE_LENGTH, /* 0D pin_function */
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ACPI_VARIABLE_LENGTH /* 0E *serial_bus */
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};
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@ -534,6 +534,18 @@ struct acpi_resource_uart_serialbus {
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#define ACPI_UART_CLEAR_TO_SEND (1<<6)
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#define ACPI_UART_REQUEST_TO_SEND (1<<7)
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struct acpi_resource_pin_function {
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u8 revision_id;
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u8 pin_config;
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u8 sharable; /* For values, see Interrupt Attributes above */
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u16 function_number;
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u16 pin_table_length;
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u16 vendor_length;
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struct acpi_resource_source resource_source;
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u16 *pin_table;
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u8 *vendor_data;
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};
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/* ACPI_RESOURCE_TYPEs */
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#define ACPI_RESOURCE_TYPE_IRQ 0
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@ -556,7 +568,8 @@ struct acpi_resource_uart_serialbus {
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#define ACPI_RESOURCE_TYPE_GPIO 17 /* ACPI 5.0 */
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#define ACPI_RESOURCE_TYPE_FIXED_DMA 18 /* ACPI 5.0 */
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#define ACPI_RESOURCE_TYPE_SERIAL_BUS 19 /* ACPI 5.0 */
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#define ACPI_RESOURCE_TYPE_MAX 19
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#define ACPI_RESOURCE_TYPE_PIN_FUNCTION 20 /* ACPI 6.2 */
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#define ACPI_RESOURCE_TYPE_MAX 20
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/* Master union for resource descriptors */
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@ -584,6 +597,7 @@ union acpi_resource_data {
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struct acpi_resource_spi_serialbus spi_serial_bus;
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struct acpi_resource_uart_serialbus uart_serial_bus;
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struct acpi_resource_common_serialbus common_serial_bus;
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struct acpi_resource_pin_function pin_function;
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/* Common fields */
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