ACPICA: ACPI 6.2: Add support for PinConfig() resource
ACPICA commit a06fdba686cefccd5dd5b93b52fa0f1e3f984906
ACPI 6.2 introduced a new resource that is used to specify fine-grained
configuration of a pin or set of pins used by a device. The ASL syntax of
this new resource looks like:
PinConfig (Shared/Exclusive, PinConfigType, PinConfigValue,
ResourceSource, ResourceSourceIndex, ResourceUsage,
DescriptorName, Vendordata) {Pin List}
PinConfigType is an integer with following accepted values:
0x00 (Default) - No configuration is applied to the pin
0x01 (Bias Pull-up) - Pin is pulled up using certain size resistor
0x02 (Bias Pull-down) - Pin is pulled down using certain size resistor
0x03 (Bias Default) - Set to default biasing
0x04 (Bias Disable) - All bias settings will be disabled
0x05 (Bias High Impedance) - Configure the pin as hi_z
0x06 (Bias Bus Hold) - Configure the pin in a weak latch state where
it drives the last value on a tristate bus
0x07 (Drive Open Drain) - Configure the pin into open drain state
0x08 (Drive Open Source) - Configure the pin into open source state
0x09 (Drive Push Pull) - Configure the pin into push-pull state
0x0a (Drive Strength) - How much the pin can supply current
0x0b (Slew Rate) - Configure slew rate of the pin
0x0c (Input Debounce) - Enable input debouncer for the pin
0x0d (Input Schmitt Trigger) - Enable schmitt trigger for the pin
0x0e - 0x7f - Reserved
0x80 - 0xff - Vendor defined types
The PinConfigValue depends on the type and is expressed as units
suitable for that type (for example bias uses Ohms).
Link: https://github.com/acpica/acpica/commit/a06fdba6
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>
This commit is contained in:
Mika Westerberg
Rafael J. Wysocki
parent
2b72693066
commit
97028ce6fc
@ -1144,7 +1144,8 @@ struct acpi_port_info {
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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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#define ACPI_RESOURCE_NAME_PIN_CONFIG 0x8F
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#define ACPI_RESOURCE_NAME_LARGE_MAX 0x8F
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/*****************************************************************************
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*
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@ -330,6 +330,7 @@ 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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extern struct acpi_rsconvert_info acpi_rs_convert_pin_config[];
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/* These resources require separate get/set tables */
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@ -380,6 +381,7 @@ extern struct acpi_rsdump_info acpi_rs_dump_i2c_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_spi_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_uart_serial_bus[];
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extern struct acpi_rsdump_info acpi_rs_dump_general_flags[];
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extern struct acpi_rsdump_info acpi_rs_dump_pin_config[];
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#endif
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#endif /* __ACRESRC_H__ */
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@ -85,6 +85,7 @@ extern const char *acpi_gbl_bpb_decode[];
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extern const char *acpi_gbl_sb_decode[];
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extern const char *acpi_gbl_fc_decode[];
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extern const char *acpi_gbl_pt_decode[];
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extern const char *acpi_gbl_ptyp_decode[];
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#endif
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/*
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@ -85,6 +85,8 @@
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#define ACPI_RESTAG_PHASE "_PHA"
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#define ACPI_RESTAG_PIN "_PIN"
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#define ACPI_RESTAG_PINCONFIG "_PPI"
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#define ACPI_RESTAG_PINCONFIG_TYPE "_TYP"
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#define ACPI_RESTAG_PINCONFIG_VALUE "_VAL"
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#define ACPI_RESTAG_POLARITY "_POL"
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#define ACPI_RESTAG_REGISTERBITOFFSET "_RBO"
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#define ACPI_RESTAG_REGISTERBITWIDTH "_RBW"
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@ -425,6 +427,26 @@ struct aml_resource_pin_function {
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#define AML_RESOURCE_PIN_FUNCTION_REVISION 1 /* ACPI 6.2 */
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struct aml_resource_pin_config {
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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_type;
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u32 pin_config_value;
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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_CONFIG_REVISION 1 /* ACPI 6.2 */
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/* restore default alignment */
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#pragma pack()
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@ -468,6 +490,7 @@ union aml_resource {
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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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struct aml_resource_pin_config pin_config;
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/* Utility overlays */
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@ -375,6 +375,20 @@ acpi_rs_get_aml_length(struct acpi_resource *resource,
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break;
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case ACPI_RESOURCE_TYPE_PIN_CONFIG:
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total_size = (acpi_rs_length)(total_size +
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(resource->data.
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pin_config.
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pin_table_length * 2) +
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resource->data.pin_config.
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resource_source.
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string_length +
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resource->data.pin_config.
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vendor_length);
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break;
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default:
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break;
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@ -581,6 +595,23 @@ acpi_rs_get_list_length(u8 *aml_buffer,
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minimum_aml_resource_length;
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break;
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case ACPI_RESOURCE_NAME_PIN_CONFIG:
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/* Vendor data is optional */
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if (aml_resource->pin_config.vendor_length) {
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extra_struct_bytes +=
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aml_resource->pin_config.vendor_offset -
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aml_resource->pin_config.pin_table_offset +
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aml_resource->pin_config.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_config.pin_table_offset;
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}
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break;
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default:
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break;
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@ -337,6 +337,31 @@ struct acpi_rsdump_info acpi_rs_dump_pin_function[10] = {
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"VendorData", NULL},
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};
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struct acpi_rsdump_info acpi_rs_dump_pin_config[11] = {
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{ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_pin_config),
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"PinConfig", NULL},
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{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_config.revision_id), "RevisionId",
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NULL},
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{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_config.producer_consumer),
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"ProducerConsumer", acpi_gbl_consume_decode},
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{ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(pin_config.sharable), "Sharing",
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acpi_gbl_shr_decode},
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{ACPI_RSD_UINT8, ACPI_RSD_OFFSET(pin_config.pin_config_type),
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"PinConfigType", NULL},
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{ACPI_RSD_UINT32, ACPI_RSD_OFFSET(pin_config.pin_config_value),
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"PinConfigValue", NULL},
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{ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(pin_config.resource_source),
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"ResourceSource", NULL},
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{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_config.pin_table_length),
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"PinTableLength", NULL},
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{ACPI_RSD_WORDLIST, ACPI_RSD_OFFSET(pin_config.pin_table), "PinTable",
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NULL},
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{ACPI_RSD_UINT16, ACPI_RSD_OFFSET(pin_config.vendor_length),
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"VendorLength", NULL},
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{ACPI_RSD_SHORTLISTX, ACPI_RSD_OFFSET(pin_config.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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@ -81,6 +81,7 @@ struct acpi_rsconvert_info *acpi_gbl_set_resource_dispatch[] = {
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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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acpi_rs_convert_pin_config, /* 0x15, ACPI_RESOURCE_TYPE_PIN_CONFIG */
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};
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/* Dispatch tables for AML-to-resource (Get Resource) conversion functions */
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@ -122,6 +123,7 @@ struct acpi_rsconvert_info *acpi_gbl_get_resource_dispatch[] = {
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acpi_rs_convert_gpio, /* 0x0C, ACPI_RESOURCE_NAME_GPIO */
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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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acpi_rs_convert_pin_config, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */
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};
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/* Subtype table for serial_bus -- I2C, SPI, and UART */
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@ -159,6 +161,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
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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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acpi_rs_dump_pin_config, /* ACPI_RESOURCE_TYPE_PIN_CONFIG */
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};
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struct acpi_rsdump_info *acpi_gbl_dump_serial_bus_dispatch[] = {
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@ -196,6 +199,7 @@ const u8 acpi_gbl_aml_resource_sizes[] = {
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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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sizeof(struct aml_resource_pin_config), /* ACPI_RESOURCE_TYPE_PIN_CONFIG */
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};
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const u8 acpi_gbl_resource_struct_sizes[] = {
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@ -234,7 +238,8 @@ const u8 acpi_gbl_resource_struct_sizes[] = {
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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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ACPI_RS_SIZE(struct acpi_resource_common_serialbus),
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ACPI_RS_SIZE(struct acpi_resource_pin_config),
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};
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const u8 acpi_gbl_aml_resource_serial_bus_sizes[] = {
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@ -534,3 +534,81 @@ struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[23] = {
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AML_OFFSET(uart_serial_bus.default_baud_rate),
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1},
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};
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/*******************************************************************************
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*
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* acpi_rs_convert_pin_config
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*
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******************************************************************************/
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struct acpi_rsconvert_info acpi_rs_convert_pin_config[14] = {
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{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_PIN_CONFIG,
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ACPI_RS_SIZE(struct acpi_resource_pin_config),
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ACPI_RSC_TABLE_SIZE(acpi_rs_convert_pin_config)},
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{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_PIN_CONFIG,
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sizeof(struct aml_resource_pin_config),
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0},
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{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_config.revision_id),
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AML_OFFSET(pin_config.revision_id),
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1},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_config.sharable),
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AML_OFFSET(pin_config.flags),
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0},
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{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.pin_config.producer_consumer),
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AML_OFFSET(pin_config.flags),
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1},
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{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_config.pin_config_type),
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AML_OFFSET(pin_config.pin_config_type),
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1},
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{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.pin_config.pin_config_value),
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AML_OFFSET(pin_config.pin_config_value),
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1},
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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_config.pin_table_length),
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AML_OFFSET(pin_config.pin_table_offset),
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AML_OFFSET(pin_config.res_source_offset)},
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{ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.pin_config.pin_table),
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AML_OFFSET(pin_config.pin_table_offset),
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0},
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/* Resource Source */
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{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.pin_config.resource_source.index),
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AML_OFFSET(pin_config.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_config.resource_source.string_length),
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AML_OFFSET(pin_config.res_source_offset),
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AML_OFFSET(pin_config.vendor_offset)},
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{ACPI_RSC_MOVE_GPIO_RES,
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ACPI_RS_OFFSET(data.pin_config.resource_source.string_ptr),
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AML_OFFSET(pin_config.res_source_offset),
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0},
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/* Vendor Data */
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{ACPI_RSC_COUNT_GPIO_VEN, ACPI_RS_OFFSET(data.pin_config.vendor_length),
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AML_OFFSET(pin_config.vendor_length),
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1},
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{ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.pin_config.vendor_data),
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AML_OFFSET(pin_config.vendor_offset),
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0},
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};
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@ -291,6 +291,25 @@ const char *acpi_gbl_pt_decode[] = {
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"/* UNKNOWN parity keyword */"
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};
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/* pin_config type */
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const char *acpi_gbl_ptyp_decode[] = {
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"Default",
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"Bias Pull-up",
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"Bias Pull-down",
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"Bias Default",
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"Bias Disable",
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"Bias High Impedance",
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"Bias Bus Hold",
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"Drive Open Drain",
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"Drive Open Source",
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"Drive Push Pull",
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"Drive Strength",
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"Slew Rate",
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"Input Debounce",
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"Input Schmitt Trigger",
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};
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#endif
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/*
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@ -334,6 +353,7 @@ const u8 acpi_gbl_resource_aml_sizes[] = {
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ACPI_AML_SIZE_LARGE(struct aml_resource_gpio),
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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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ACPI_AML_SIZE_LARGE(struct aml_resource_pin_config),
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};
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const u8 acpi_gbl_resource_aml_serial_bus_sizes[] = {
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@ -385,7 +405,8 @@ static const u8 acpi_gbl_resource_types[] = {
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ACPI_FIXED_LENGTH, /* 0B Extended* address */
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ACPI_VARIABLE_LENGTH, /* 0C Gpio* */
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ACPI_VARIABLE_LENGTH, /* 0D pin_function */
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ACPI_VARIABLE_LENGTH /* 0E *serial_bus */
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ACPI_VARIABLE_LENGTH, /* 0E *serial_bus */
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ACPI_VARIABLE_LENGTH, /* 0F pin_config */
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};
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/*******************************************************************************
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@ -546,6 +546,36 @@ struct acpi_resource_pin_function {
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u8 *vendor_data;
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};
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struct acpi_resource_pin_config {
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u8 revision_id;
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u8 producer_consumer; /* For values, see Producer/Consumer above */
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u8 sharable; /* For values, see Interrupt Attributes above */
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u8 pin_config_type;
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u32 pin_config_value;
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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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/* Values for pin_config_type field above */
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#define ACPI_PIN_CONFIG_DEFAULT 0
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#define ACPI_PIN_CONFIG_BIAS_PULL_UP 1
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#define ACPI_PIN_CONFIG_BIAS_PULL_DOWN 2
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#define ACPI_PIN_CONFIG_BIAS_DEFAULT 3
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#define ACPI_PIN_CONFIG_BIAS_DISABLE 4
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#define ACPI_PIN_CONFIG_BIAS_HIGH_IMPEDANCE 5
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#define ACPI_PIN_CONFIG_BIAS_BUS_HOLD 6
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#define ACPI_PIN_CONFIG_DRIVE_OPEN_DRAIN 7
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#define ACPI_PIN_CONFIG_DRIVE_OPEN_SOURCE 8
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#define ACPI_PIN_CONFIG_DRIVE_PUSH_PULL 9
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#define ACPI_PIN_CONFIG_DRIVE_STRENGTH 10
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#define ACPI_PIN_CONFIG_SLEW_RATE 11
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#define ACPI_PIN_CONFIG_INPUT_DEBOUNCE 12
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#define ACPI_PIN_CONFIG_INPUT_SCHMITT_TRIGGER 13
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/* ACPI_RESOURCE_TYPEs */
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#define ACPI_RESOURCE_TYPE_IRQ 0
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@ -569,7 +599,8 @@ struct acpi_resource_pin_function {
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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_PIN_FUNCTION 20 /* ACPI 6.2 */
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#define ACPI_RESOURCE_TYPE_MAX 20
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#define ACPI_RESOURCE_TYPE_PIN_CONFIG 21 /* ACPI 6.2 */
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#define ACPI_RESOURCE_TYPE_MAX 21
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/* Master union for resource descriptors */
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@ -598,6 +629,7 @@ union acpi_resource_data {
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struct acpi_resource_uart_serialbus uart_serial_bus;
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||||
struct acpi_resource_common_serialbus common_serial_bus;
|
||||
struct acpi_resource_pin_function pin_function;
|
||||
struct acpi_resource_pin_config pin_config;
|
||||
|
||||
/* Common fields */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user