drivers/pnp/pnpacpi/rsparser.c

Source file repositories/reference/linux-study-clean/drivers/pnp/pnpacpi/rsparser.c

File Facts

System
Linux kernel
Corpus path
drivers/pnp/pnpacpi/rsparser.c
Extension
.c
Size
26489 bytes
Lines
949
Domain
Driver Families
Bucket
drivers/pnp
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct acpipnp_parse_option_s {
	struct pnp_dev *dev;
	unsigned int option_flags;
};

static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
						  void *data)
{
	int priority;
	struct acpipnp_parse_option_s *parse_data = data;
	struct pnp_dev *dev = parse_data->dev;
	unsigned int option_flags = parse_data->option_flags;

	switch (res->type) {
	case ACPI_RESOURCE_TYPE_IRQ:
		pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
		break;

	case ACPI_RESOURCE_TYPE_DMA:
		pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
		break;

	case ACPI_RESOURCE_TYPE_START_DEPENDENT:
		switch (res->data.start_dpf.compatibility_priority) {
		case ACPI_GOOD_CONFIGURATION:
			priority = PNP_RES_PRIORITY_PREFERRED;
			break;

		case ACPI_ACCEPTABLE_CONFIGURATION:
			priority = PNP_RES_PRIORITY_ACCEPTABLE;
			break;

		case ACPI_SUB_OPTIMAL_CONFIGURATION:
			priority = PNP_RES_PRIORITY_FUNCTIONAL;
			break;
		default:
			priority = PNP_RES_PRIORITY_INVALID;
			break;
		}
		parse_data->option_flags = pnp_new_dependent_set(dev, priority);
		break;

	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
		parse_data->option_flags = 0;
		break;

	case ACPI_RESOURCE_TYPE_IO:
		pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
		break;

	case ACPI_RESOURCE_TYPE_FIXED_IO:
		pnpacpi_parse_fixed_port_option(dev, option_flags,
					        &res->data.fixed_io);
		break;

	case ACPI_RESOURCE_TYPE_VENDOR:
	case ACPI_RESOURCE_TYPE_END_TAG:
		break;

	case ACPI_RESOURCE_TYPE_MEMORY24:
		pnpacpi_parse_mem24_option(dev, option_flags,
					   &res->data.memory24);
		break;

	case ACPI_RESOURCE_TYPE_MEMORY32:
		pnpacpi_parse_mem32_option(dev, option_flags,
					   &res->data.memory32);
		break;

	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
		pnpacpi_parse_fixed_mem32_option(dev, option_flags,
						 &res->data.fixed_memory32);
		break;

	case ACPI_RESOURCE_TYPE_ADDRESS16:
	case ACPI_RESOURCE_TYPE_ADDRESS32:
	case ACPI_RESOURCE_TYPE_ADDRESS64:
		pnpacpi_parse_address_option(dev, option_flags, res);
		break;

	case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
		pnpacpi_parse_ext_address_option(dev, option_flags, res);
		break;

	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
		pnpacpi_parse_ext_irq_option(dev, option_flags,
					     &res->data.extended_irq);
		break;

	case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:

Annotation

Implementation Notes