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-rwxr-xr-xutil/sconfig/sconfig.y499
1 files changed, 499 insertions, 0 deletions
diff --git a/util/sconfig/sconfig.y b/util/sconfig/sconfig.y
new file mode 100755
index 0000000000..180ea8a735
--- /dev/null
+++ b/util/sconfig/sconfig.y
@@ -0,0 +1,499 @@
+%{
+/*
+ * sconfig, coreboot device tree compiler
+ *
+ * Copyright (C) 2010 coresystems GmbH
+ * written by Patrick Georgi <patrick.georgi@coresystems.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+
+enum devtype { chip, device };
+
+struct resource;
+struct resource {
+ int type;
+ int index;
+ int base;
+ struct resource *next;
+};
+
+struct reg;
+struct reg {
+ char *key;
+ char *value;
+ struct reg *next;
+};
+
+struct device;
+struct device {
+ int id;
+ int enabled;
+ int used;
+ int multidev;
+ int link;
+ int rescnt;
+ int chiph_exists;
+ char *ops;
+ char *name;
+ char *aliased_name;
+ char *name_underscore;
+ char *path;
+ int path_a;
+ int path_b;
+ int bustype;
+ enum devtype type;
+ struct device *parent;
+ struct device *bus;
+ struct device *next;
+ struct device *nextdev;
+ struct device *children;
+ struct device *latestchild;
+ struct device *next_sibling;
+ struct device *sibling;
+ struct device *chip;
+ struct resource *res;
+ struct reg *reg;
+} *head, *lastdev, *cur_parent, *cur_bus, root;
+
+struct header;
+struct header {
+ char *name;
+ struct header *next;
+} headers;
+
+int devcount = 0;
+
+struct device *new_dev() {
+ struct device *dev = malloc(sizeof(struct device));
+ memset(dev, 0, sizeof(struct device));
+ dev->id = ++devcount;
+ dev->parent = cur_parent;
+ dev->bus = cur_bus;
+ head->next = dev;
+ head = dev;
+ return dev;
+}
+
+int device_match(struct device *a, struct device *b) {
+ if ((a->bustype == b->bustype) && (a->bus == b->bus) && (a->path_a == b->path_a) && (a->path_b == b->path_b))
+ return 1;
+ return 0;
+}
+
+void fold_in(struct device *parent) {
+ struct device *child = parent->children;
+ struct device *latest = 0;
+ while (child != latest) {
+ if (child->children) {
+ if (!latest) latest = child->children;
+ parent->latestchild->next_sibling = child->children;
+ parent->latestchild = child->latestchild;
+ }
+ child = child->next_sibling;
+ }
+}
+
+int yywrap(void) {
+ return 1;
+}
+
+void yyerror (char const *str)
+{
+ fprintf (stderr, "%s\n", str);
+}
+%}
+%union {
+ struct device *device;
+ char *string;
+ int number;
+}
+%token CHIP DEVICE REGISTER BOOL BUS RESOURCE END EQUALS HEX STRING PCI PNP I2C APIC APIC_CLUSTER PCI_DOMAIN IRQ DRQ IO NUMBER
+%%
+devtree: devchip {
+ root.next_sibling = root.children;
+ root.next_sibling->next_sibling = root.next_sibling->children;
+
+ struct device *dev = &root;
+ while (dev) {
+ /* skip "chip" elements in children chain */
+ while (dev->children && (dev->children->type == chip)) dev->children = dev->children->children;
+ /* skip "chip" elements and functions of the same device in sibling chain */
+ while (dev->sibling && dev->sibling->used) dev->sibling = dev->sibling->sibling;
+ /* If end of chain, and parent is a chip, move on */
+ if (!dev->sibling && (dev->parent->type == chip)) dev->sibling = dev->parent->sibling;
+ /* skip chips */
+ while (dev->sibling && dev->sibling->type == chip) dev->sibling = dev->sibling->children;
+ /* skip duplicate function elements in nextdev chain */
+ while (dev->nextdev && dev->nextdev->used) dev->nextdev = dev->nextdev->nextdev;
+ dev = dev->next_sibling;
+ }
+ };
+
+devchip: chip | device ;
+
+devices: devices devchip | devices registers | ;
+
+devicesorresources: devicesorresources devchip | devicesorresources resource | ;
+
+chip: CHIP STRING /* == path */ {
+ $<device>$ = new_dev();
+ $<device>$->chiph_exists = 1;
+ $<device>$->name = $<string>2;
+ $<device>$->name_underscore = strdup($<device>$->name);
+ char *c;
+ for (c = $<device>$->name_underscore; *c; c++) {
+ if (*c == '/') *c = '_';
+ }
+ $<device>$->type = chip;
+ $<device>$->chip = $<device>$;
+
+ struct stat st;
+ char *chip_h = malloc(strlen($<string>2)+12);
+ sprintf(chip_h, "src/%s/chip.h", $<string>2);
+ if ((stat(chip_h, &st) == -1) && (errno == ENOENT))
+ $<device>$->chiph_exists = 0;
+
+ if (cur_parent->latestchild) {
+ cur_parent->latestchild->next_sibling = $<device>$;
+ cur_parent->latestchild->sibling = $<device>$;
+ }
+ cur_parent->latestchild = $<device>$;
+ if (!cur_parent->children)
+ cur_parent->children = $<device>$;
+
+ cur_parent = $<device>$;
+}
+ devices END {
+ cur_parent = $<device>3->parent;
+
+ fold_in($<device>3);
+
+ if ($<device>3->chiph_exists) {
+ int include_exists = 0;
+ struct header *h = &headers;
+ while (h->next) {
+ int result = strcmp($<device>3->name, h->next->name);
+ if (result == 0) {
+ include_exists = 1;
+ break;
+ }
+ if (result < 0) break;
+ h = h->next;
+ }
+ if (!include_exists) {
+ struct header *tmp = h->next;
+ h->next = malloc(sizeof(struct header));
+ memset(h->next, 0, sizeof(struct header));
+ h->next->name = $<device>3->name;
+ h->next->next = tmp;
+ break;
+ }
+ }
+};
+
+device: DEVICE BUS NUMBER /* == devnum */ BOOL {
+ $<device>$ = new_dev();
+ $<device>$->bustype = $<number>2;
+
+ char *tmp;
+ $<device>$->path_a = strtol(strdup($<string>3), &tmp, 16);
+ if (*tmp == '.') {
+ tmp++;
+ $<device>$->path_b = strtol(tmp, NULL, 16);
+ }
+
+ char *name = malloc(10);
+ sprintf(name, "_dev%d", $<device>$->id);
+ $<device>$->name = name;
+ $<device>$->name_underscore = name; // shouldn't be necessary, but avoid 0-ptr
+ $<device>$->type = device;
+ $<device>$->enabled = $<number>4;
+ $<device>$->chip = $<device>$->parent->chip;
+
+ if (cur_parent->latestchild) {
+ cur_parent->latestchild->next_sibling = $<device>$;
+ cur_parent->latestchild->sibling = $<device>$;
+ }
+ cur_parent->latestchild = $<device>$;
+ if (!cur_parent->children)
+ cur_parent->children = $<device>$;
+
+ lastdev->nextdev = $<device>$;
+ lastdev = $<device>$;
+ if ($<number>2 == PCI) {
+ $<device>$->path = ".type=DEVICE_PATH_PCI,{.pci={ .devfn = PCI_DEVFN(0x%x,%d)}}";
+ }
+ if ($<number>2 == PNP) {
+ $<device>$->path = ".type=DEVICE_PATH_PNP,{.pnp={ .port = 0x%x, .device = 0x%x }}";
+ }
+ if ($<number>2 == I2C) {
+ $<device>$->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x }}";
+ }
+ if ($<number>2 == APIC) {
+ $<device>$->path = ".type=DEVICE_PATH_APIC,{.apic={ .apic_id = 0x%x }}";
+ }
+ if ($<number>2 == APIC_CLUSTER) {
+ $<device>$->path = ".type=DEVICE_PATH_APIC_CLUSTER,{.apic_cluster={ .cluster = 0x%x }}";
+ }
+ if ($<number>2 == PCI_DOMAIN) {
+ $<device>$->path = ".type=DEVICE_PATH_PCI_DOMAIN,{.pci_domain={ .domain = 0x%x }}";
+ }
+ cur_parent = $<device>$;
+ cur_bus = $<device>$;
+}
+ devicesorresources END {
+ cur_parent = $<device>5->parent;
+ cur_bus = $<device>5->bus;
+
+ fold_in($<device>5);
+
+ struct device *d = $<device>5->children;
+ while (d) {
+ int link = 0;
+ struct device *cmp = d->next_sibling;
+ while (cmp && (cmp->bus == d->bus) && (cmp->path_a == d->path_a) && (cmp->path_b == d->path_b)) {
+ if (cmp->type==device && !cmp->used) {
+ if (device_match(d, cmp)) {
+ d->multidev = 1;
+
+ cmp->aliased_name = malloc(12);
+ sprintf(cmp->aliased_name, "_dev%d", cmp->id);
+ cmp->id = d->id;
+ cmp->name = d->name;
+ cmp->used = 1;
+ cmp->link = ++link;
+ }
+ }
+ cmp = cmp->next_sibling;
+ }
+ d = d->next_sibling;
+ }
+};
+
+resource: RESOURCE NUMBER /* == resnum */ EQUALS NUMBER /* == resval */
+ {
+ struct resource *r = malloc(sizeof(struct resource));
+ memset (r, 0, sizeof(struct resource));
+ r->type = $<number>1;
+ r->index = strtol($<string>2, NULL, 0);
+ r->base = strtol($<string>4, NULL, 0);
+ if (cur_parent->res) {
+ struct resource *head = cur_parent->res;
+ while (head->next) head = head->next;
+ head->next = r;
+ } else {
+ cur_parent->res = r;
+ }
+ cur_parent->rescnt++;
+ }
+ ;
+
+registers: REGISTER STRING /* == regname */ EQUALS STRING /* == regval */
+ {
+ struct reg *r = malloc(sizeof(struct reg));
+ memset (r, 0, sizeof(struct reg));
+ r->key = $<string>2;
+ r->value = $<string>4;
+ if (cur_parent->reg) {
+ struct reg *head = cur_parent->reg;
+ // sorting to be equal to sconfig's behaviour
+ int sort = strcmp(r->key, head->key);
+ if (sort == 0) {
+ printf("ERROR: duplicate 'register' key.\n");
+ exit(1);
+ }
+ if (sort<0) {
+ r->next = head;
+ cur_parent->reg = r;
+ } else {
+ while ((head->next) && (strcmp(head->next->key, r->key)<0)) head = head->next;
+ r->next = head->next;
+ head->next = r;
+ }
+ } else {
+ cur_parent->reg = r;
+ }
+ }
+ ;
+
+%%
+void pass0(FILE *fil, struct device *ptr) {
+ if ((ptr->type == device) && (ptr->id != 0) && (!ptr->used))
+ fprintf(fil, "struct device %s;\n", ptr->name);
+ if ((ptr->type == device) && (ptr->id != 0) && ptr->used)
+ fprintf(fil, "struct device %s;\n", ptr->aliased_name);
+}
+
+void pass1(FILE *fil, struct device *ptr) {
+ if (!ptr->used && (ptr->type == device)) {
+ fprintf(fil, "struct device %s = {\n", ptr->name);
+ fprintf(fil, "\t.ops = %s,\n", (ptr->ops)?(ptr->ops):"0");
+ fprintf(fil, "\t.bus = &%s.link[%d],\n", ptr->bus->name, ptr->bus->link);
+ fprintf(fil, "\t.path = {");
+ fprintf(fil, ptr->path, ptr->path_a, ptr->path_b);
+ fprintf(fil, "},\n");
+ fprintf(fil, "\t.enabled = %d,\n", ptr->enabled);
+ fprintf(fil, "\t.on_mainboard = 1,\n");
+ if (ptr->rescnt > 0) {
+ fprintf(fil, "\t.resources = %d,\n", ptr->rescnt);
+ fprintf(fil, "\t.resource = {\n");
+ struct resource *r = ptr->res;
+ while (r) {
+ fprintf(fil, "\t\t{ .flags=IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_");
+ if (r->type == IRQ) fprintf(fil, "IRQ");
+ if (r->type == DRQ) fprintf(fil, "DRQ");
+ if (r->type == IO) fprintf(fil, "IO");
+ fprintf(fil, ", .index=0x%x, .base=0x%x},\n", r->index, r->base);
+ r = r->next;
+ }
+ fprintf(fil, "\t },\n");
+ }
+ int link = 0;
+ fprintf(fil, "\t.link = {\n");
+ if (ptr->multidev) {
+ struct device *d = ptr;
+ while (d) {
+ if (device_match(d, ptr)) {
+ fprintf(fil, "\t\t[%d] = {\n", d->link);
+ fprintf(fil, "\t\t\t.link = %d,\n", d->link);
+ fprintf(fil, "\t\t\t.dev = &%s,\n", d->name);
+ if (d->children)
+ fprintf(fil, "\t\t\t.children = &%s,\n", d->children->name);
+ fprintf(fil, "\t\t},\n");
+ link++;
+ }
+ d = d->next_sibling;
+ }
+ } else {
+ if (ptr->children) {
+ fprintf(fil, "\t\t[0] = {\n");
+ fprintf(fil, "\t\t\t.link = 0,\n");
+ fprintf(fil, "\t\t\t.dev = &%s,\n", ptr->name);
+ fprintf(fil, "\t\t\t.children = &%s,\n", ptr->children->name);
+ fprintf(fil, "\t\t},\n");
+ link++;
+ }
+ }
+ fprintf(fil, "\t},\n");
+ fprintf(fil, "\t.links = %d,\n", link);
+ if (ptr->sibling)
+ fprintf(fil, "\t.sibling = &%s,\n", ptr->sibling->name);
+ if (ptr->chip->chiph_exists) {
+ fprintf(fil, "\t.chip_ops = &%s_ops,\n", ptr->chip->name_underscore);
+ fprintf(fil, "\t.chip_info = &%s_info_%d,\n", ptr->chip->name_underscore, ptr->chip->id);
+ }
+ if (ptr->nextdev)
+ fprintf(fil, "\t.next=&%s\n", ptr->nextdev->name);
+ fprintf(fil, "};\n");
+ }
+ if ((ptr->type == chip) && (ptr->chiph_exists)) {
+ if (ptr->reg) {
+ fprintf(fil, "struct %s_config %s_info_%d\t= {\n", ptr->name_underscore, ptr->name_underscore, ptr->id);
+ struct reg *r = ptr->reg;
+ while (r) {
+ fprintf(fil, "\t.%s = %s,\n", r->key, r->value);
+ r = r->next;
+ }
+ fprintf(fil, "};\n\n");
+ } else {
+ fprintf(fil, "struct %s_config %s_info_%d;\n", ptr->name_underscore, ptr->name_underscore, ptr->id);
+ }
+ }
+}
+
+void walk_device_tree(FILE *fil, struct device *ptr, void (*func)(FILE *, struct device*), struct device *chips) {
+ do {
+ func(fil, ptr);
+ ptr = ptr->next_sibling;
+ } while (ptr);
+}
+
+struct device mainboard = {
+ .name = "mainboard",
+ .name_underscore = "mainboard",
+ .id = 0,
+ .chip = &mainboard,
+ .type = chip,
+ .chiph_exists = 1,
+ .children = &root
+};
+
+struct device root = {
+ .name = "dev_root",
+ .name_underscore = "dev_root",
+ .id = 0,
+ .chip = &mainboard,
+ .type = device,
+ .path = " .type = DEVICE_PATH_ROOT ",
+ .ops = "&default_dev_ops_root",
+ .parent = &root,
+ .bus = &root,
+ .enabled = 1
+};
+
+int main(int argc, char** argv) {
+ if (argc != 3) {
+ printf("usage: sconfig vendor/mainboard outputdir\n");
+ return 1;
+ }
+ char *mainboard=argv[1];
+ char *outputdir=argv[2];
+ char *devtree=malloc(strlen(mainboard)+30);
+ char *outputc=malloc(strlen(outputdir)+10);
+ sprintf(devtree, "src/mainboard/%s/devicetree.cb", mainboard);
+ sprintf(outputc, "%s/static.c", outputdir);
+
+ headers.next = malloc(sizeof(struct header));
+ headers.next->name = malloc(strlen(mainboard)+12);
+ headers.next->next = 0;
+ sprintf(headers.next->name, "mainboard/%s", mainboard);
+
+ FILE *filec = fopen(devtree, "r");
+ yyrestart(filec);
+
+ FILE *staticc = fopen(outputc, "w");
+
+ cur_bus = cur_parent = lastdev = head = &root;
+ yyparse();
+ fclose(filec);
+
+ if ((head->type == chip) && (!head->chiph_exists)) {
+ struct device *tmp = head;
+ head = &root;
+ while (head->next != tmp) head = head->next;
+ }
+
+ fprintf(staticc, "#include <device/device.h>\n");
+ fprintf(staticc, "#include <device/pci.h>\n");
+ struct header *h = &headers;
+ while (h->next) {
+ h = h->next;
+ fprintf(staticc, "#include \"%s/chip.h\"\n", h->name);
+ }
+ fprintf(staticc, "\n/* pass 0 */\n");
+ walk_device_tree(staticc, &root, pass0, NULL);
+ fprintf(staticc, "\n/* pass 1 */\nstruct mainboard_config mainboard_info_0;\nstruct device **last_dev_p = &%s.next;\n", lastdev->name);
+ walk_device_tree(staticc, &root, pass1, NULL);
+
+ fclose(staticc);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 18:14:49 +0000