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%{
/* sconfig, coreboot device tree compiler */
/* SPDX-License-Identifier: GPL-2.0-only */
#include "sconfig.h"
int yylex();
void yyerror(const char *s);
static struct bus *cur_parent;
static struct chip_instance *cur_chip_instance;
%}
%union {
struct device *dev;
struct chip_instance *chip_instance;
char *string;
int number;
}
%token CHIP DEVICE REGISTER BOOL STATUS MANDATORY BUS RESOURCE END EQUALS HEX STRING PCI PNP I2C APIC CPU_CLUSTER CPU DOMAIN IRQ DRQ SLOT_DESC IO NUMBER SUBSYSTEMID INHERIT IOAPIC_IRQ IOAPIC PCIINT GENERIC SPI USB MMIO
%%
devtree: { cur_parent = root_parent; } chip;
chipchildren: chipchildren device | chipchildren chip | chipchildren registers | /* empty */ ;
devicechildren: devicechildren device | devicechildren chip | devicechildren resource | devicechildren subsystemid | devicechildren ioapic_irq | devicechildren smbios_slot_desc | devicechildren registers | /* empty */ ;
chip: CHIP STRING /* == path */ {
$<chip_instance>$ = new_chip_instance($<string>2);
chip_enqueue_tail(cur_chip_instance);
cur_chip_instance = $<chip_instance>$;
}
chipchildren END {
cur_chip_instance = chip_dequeue_tail();
};
device: DEVICE BUS NUMBER /* == devnum */ status {
$<dev>$ = new_device(cur_parent, cur_chip_instance, $<number>2, $<string>3, $<number>4);
cur_parent = $<dev>$->last_bus;
}
devicechildren END {
cur_parent = $<dev>5->parent;
};
status: BOOL | STATUS ;
resource: RESOURCE NUMBER /* == resnum */ EQUALS NUMBER /* == resval */
{ add_resource(cur_parent, $<number>1, strtol($<string>2, NULL, 0), strtol($<string>4, NULL, 0)); } ;
registers: REGISTER STRING /* == regname */ EQUALS STRING /* == regval */
{ add_register(cur_chip_instance, $<string>2, $<string>4); } ;
subsystemid: SUBSYSTEMID NUMBER NUMBER
{ add_pci_subsystem_ids(cur_parent, strtol($<string>2, NULL, 16), strtol($<string>3, NULL, 16), 0); };
subsystemid: SUBSYSTEMID NUMBER NUMBER INHERIT
{ add_pci_subsystem_ids(cur_parent, strtol($<string>2, NULL, 16), strtol($<string>3, NULL, 16), 1); };
ioapic_irq: IOAPIC_IRQ NUMBER PCIINT NUMBER
{ add_ioapic_info(cur_parent, strtol($<string>2, NULL, 16), $<string>3, strtol($<string>4, NULL, 16)); };
smbios_slot_desc: SLOT_DESC STRING STRING STRING STRING
{ add_slot_desc(cur_parent, $<string>2, $<string>3, $<string>4, $<string>5); };
smbios_slot_desc: SLOT_DESC STRING STRING STRING
{ add_slot_desc(cur_parent, $<string>2, $<string>3, $<string>4, NULL); };
smbios_slot_desc: SLOT_DESC STRING STRING
{ add_slot_desc(cur_parent, $<string>2, $<string>3, NULL, NULL); };
%%
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