607 lines
16 KiB
C
607 lines
16 KiB
C
/*
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* sconfig, coreboot device tree compiler
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*
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* Copyright (C) 2010 coresystems GmbH
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* written by Patrick Georgi <patrick.georgi@coresystems.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#include "sconfig.h"
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#include "sconfig.tab.h"
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extern int linenum;
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struct device *head, *lastdev;
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struct header headers;
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static int devcount = 0;
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typedef enum {
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STATIC_MODE,
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BOOTBLOCK_MODE,
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KCONFIG_MODE
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} scan_t;
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static scan_t scan_mode = STATIC_MODE;
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static struct device root;
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static struct device mainboard = {
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.name = "mainboard",
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.name_underscore = "mainboard",
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.id = 0,
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.chip = &mainboard,
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.type = chip,
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.chiph_exists = 1,
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.children = &root
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};
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static struct device root = {
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.name = "dev_root",
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.name_underscore = "dev_root",
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.id = 0,
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.chip = &mainboard,
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.type = device,
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.path = " .type = DEVICE_PATH_ROOT ",
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.ops = "&default_dev_ops_root",
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.parent = &root,
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.bus = &root,
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.enabled = 1
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};
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static struct device *new_dev(struct device *parent, struct device *bus) {
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struct device *dev = malloc(sizeof(struct device));
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memset(dev, 0, sizeof(struct device));
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dev->id = ++devcount;
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dev->parent = parent;
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dev->bus = bus;
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dev->subsystem_vendor = -1;
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dev->subsystem_device = -1;
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head->next = dev;
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head = dev;
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return dev;
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}
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static int device_match(struct device *a, struct device *b) {
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if ((a->bustype == b->bustype) && (a->bus == b->bus) && (a->path_a == b->path_a) && (a->path_b == b->path_b))
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return 1;
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return 0;
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}
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void fold_in(struct device *parent) {
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struct device *child = parent->children;
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struct device *latest = 0;
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while (child != latest) {
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if (child->children) {
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if (!latest) latest = child->children;
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parent->latestchild->next_sibling = child->children;
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parent->latestchild = child->latestchild;
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}
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child = child->next_sibling;
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}
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}
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int yywrap(void) {
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return 1;
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}
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void yyerror (char const *str)
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{
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extern char *yytext;
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fprintf (stderr, "line %d: %s: %s\n", linenum + 1, yytext, str);
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exit(1);
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}
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void postprocess_devtree(void) {
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root.next_sibling = root.children;
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root.next_sibling->next_sibling = root.next_sibling->children;
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struct device *dev = &root;
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while (dev) {
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/* skip "chip" elements in children chain */
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while (dev->children && (dev->children->type == chip)) dev->children = dev->children->children;
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/* skip "chip" elements and functions of the same device in sibling chain */
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while (dev->sibling && dev->sibling->used) dev->sibling = dev->sibling->sibling;
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/* If end of chain, and parent is a chip, move on */
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if (!dev->sibling && (dev->parent->type == chip)) dev->sibling = dev->parent->sibling;
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/* skip chips */
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while (dev->sibling && dev->sibling->type == chip) dev->sibling = dev->sibling->children;
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/* skip duplicate function elements in nextdev chain */
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while (dev->nextdev && dev->nextdev->used) dev->nextdev = dev->nextdev->nextdev;
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dev = dev->next_sibling;
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}
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}
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void translate_name(char *str, int uppercase)
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{
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char *c;
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for (c = str; *c; c++) {
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if (*c == '/') *c = '_';
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if (*c == '-') *c = '_';
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if (uppercase)
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*c = toupper(*c);
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}
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}
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struct device *new_chip(struct device *parent, struct device *bus, char *path) {
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struct device *new_chip = new_dev(parent, bus);
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new_chip->chiph_exists = 1;
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new_chip->name = path;
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new_chip->name_underscore = strdup(new_chip->name);
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translate_name(new_chip->name_underscore, 0);
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new_chip->type = chip;
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new_chip->chip = new_chip;
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struct stat st;
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char *chip_h = malloc(strlen(path)+18);
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sprintf(chip_h, "src/%s", path);
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if ((stat(chip_h, &st) == -1) && (errno == ENOENT)) {
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fprintf(stderr, "ERROR: Chip component %s does not exist.\n",
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path);
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exit(1);
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}
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if (scan_mode == STATIC_MODE)
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sprintf(chip_h, "src/%s/chip.h", path);
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else if (scan_mode == BOOTBLOCK_MODE)
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sprintf(chip_h, "src/%s/bootblock.c", path);
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if ((scan_mode == STATIC_MODE) || (scan_mode == BOOTBLOCK_MODE)) {
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if ((stat(chip_h, &st) == -1) && (errno == ENOENT))
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new_chip->chiph_exists = 0;
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}
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if (parent->latestchild) {
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parent->latestchild->next_sibling = new_chip;
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parent->latestchild->sibling = new_chip;
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}
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parent->latestchild = new_chip;
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if (!parent->children)
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parent->children = new_chip;
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return new_chip;
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}
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void add_header(struct device *dev) {
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if ((dev->chiph_exists) || (scan_mode == KCONFIG_MODE)){
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int include_exists = 0;
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struct header *h = &headers;
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while (h->next) {
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int result = strcmp(dev->name, h->next->name);
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if (result == 0) {
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include_exists = 1;
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break;
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}
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if (result < 0) break;
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h = h->next;
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}
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if (!include_exists) {
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struct header *tmp = h->next;
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h->next = malloc(sizeof(struct header));
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memset(h->next, 0, sizeof(struct header));
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h->next->name = dev->name;
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h->next->next = tmp;
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}
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}
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}
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struct device *new_device(struct device *parent, struct device *busdev, const int bus, const char *devnum, int enabled) {
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struct device *new_d = new_dev(parent, busdev);
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new_d->bustype = bus;
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char *tmp;
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new_d->path_a = strtol(strdup(devnum), &tmp, 16);
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if (*tmp == '.') {
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tmp++;
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new_d->path_b = strtol(tmp, NULL, 16);
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}
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char *name = malloc(10);
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sprintf(name, "_dev%d", new_d->id);
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new_d->name = name;
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new_d->name_underscore = name; // shouldn't be necessary, but avoid 0-ptr
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new_d->type = device;
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new_d->enabled = enabled;
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new_d->chip = new_d->parent->chip;
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if (parent->latestchild) {
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parent->latestchild->next_sibling = new_d;
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parent->latestchild->sibling = new_d;
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}
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parent->latestchild = new_d;
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if (!parent->children)
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parent->children = new_d;
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lastdev->nextdev = new_d;
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lastdev = new_d;
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if (bus == PCI) {
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new_d->path = ".type=DEVICE_PATH_PCI,{.pci={ .devfn = PCI_DEVFN(0x%x,%d)}}";
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}
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if (bus == PNP) {
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new_d->path = ".type=DEVICE_PATH_PNP,{.pnp={ .port = 0x%x, .device = 0x%x }}";
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}
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if (bus == I2C) {
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new_d->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x }}";
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}
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if (bus == APIC) {
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new_d->path = ".type=DEVICE_PATH_APIC,{.apic={ .apic_id = 0x%x }}";
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}
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if (bus == APIC_CLUSTER) {
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new_d->path = ".type=DEVICE_PATH_APIC_CLUSTER,{.apic_cluster={ .cluster = 0x%x }}";
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}
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if (bus == PCI_DOMAIN) {
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new_d->path = ".type=DEVICE_PATH_PCI_DOMAIN,{.pci_domain={ .domain = 0x%x }}";
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}
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return new_d;
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}
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void alias_siblings(struct device *d) {
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while (d) {
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int link = 0;
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struct device *cmp = d->next_sibling;
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while (cmp && (cmp->bus == d->bus) && (cmp->path_a == d->path_a) && (cmp->path_b == d->path_b)) {
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if (cmp->type==device && !cmp->used) {
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if (device_match(d, cmp)) {
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d->multidev = 1;
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cmp->id = d->id;
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cmp->name = d->name;
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cmp->used = 1;
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cmp->link = ++link;
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}
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}
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cmp = cmp->next_sibling;
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}
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d = d->next_sibling;
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}
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}
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void add_resource(struct device *dev, int type, int index, int base) {
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struct resource *r = malloc(sizeof(struct resource));
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memset (r, 0, sizeof(struct resource));
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r->type = type;
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r->index = index;
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r->base = base;
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if (dev->res) {
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struct resource *head = dev->res;
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while (head->next) head = head->next;
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head->next = r;
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} else {
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dev->res = r;
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}
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dev->rescnt++;
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}
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void add_register(struct device *dev, char *name, char *val) {
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struct reg *r = malloc(sizeof(struct reg));
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memset (r, 0, sizeof(struct reg));
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r->key = name;
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r->value = val;
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if (dev->reg) {
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struct reg *head = dev->reg;
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// sorting to be equal to sconfig's behaviour
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int sort = strcmp(r->key, head->key);
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if (sort == 0) {
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printf("ERROR: duplicate 'register' key.\n");
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exit(1);
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}
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if (sort<0) {
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r->next = head;
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dev->reg = r;
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} else {
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while ((head->next) && (strcmp(head->next->key, r->key)<0)) head = head->next;
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r->next = head->next;
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head->next = r;
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}
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} else {
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dev->reg = r;
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}
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}
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void add_pci_subsystem_ids(struct device *dev, int vendor, int device, int inherit)
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{
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if (dev->bustype != PCI && dev->bustype != PCI_DOMAIN) {
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printf("ERROR: 'subsystem' only allowed for PCI devices\n");
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exit(1);
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}
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dev->subsystem_vendor = vendor;
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dev->subsystem_device = device;
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dev->inherit_subsystem = inherit;
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}
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static void pass0(FILE *fil, struct device *ptr) {
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if (ptr->type == device && ptr->id == 0)
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fprintf(fil, "struct bus %s_links[];\n", ptr->name);
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if ((ptr->type == device) && (ptr->id != 0) && (!ptr->used)) {
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fprintf(fil, "static struct device %s;\n", ptr->name);
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if (ptr->rescnt > 0)
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fprintf(fil, "struct resource %s_res[];\n", ptr->name);
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if (ptr->children || ptr->multidev)
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fprintf(fil, "struct bus %s_links[];\n", ptr->name);
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}
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}
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static void pass1(FILE *fil, struct device *ptr) {
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if (!ptr->used && (ptr->type == device)) {
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if (ptr->id != 0)
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fprintf(fil, "static ", ptr->name);
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fprintf(fil, "struct device %s = {\n", ptr->name);
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fprintf(fil, "\t.ops = %s,\n", (ptr->ops)?(ptr->ops):"0");
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fprintf(fil, "\t.bus = &%s_links[%d],\n", ptr->bus->name, ptr->bus->link);
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fprintf(fil, "\t.path = {");
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fprintf(fil, ptr->path, ptr->path_a, ptr->path_b);
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fprintf(fil, "},\n");
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fprintf(fil, "\t.enabled = %d,\n", ptr->enabled);
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fprintf(fil, "\t.on_mainboard = 1,\n");
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if (ptr->subsystem_vendor > 0)
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fprintf(fil, "\t.subsystem_vendor = 0x%04x,\n", ptr->subsystem_vendor);
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if (ptr->subsystem_device > 0)
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fprintf(fil, "\t.subsystem_device = 0x%04x,\n", ptr->subsystem_device);
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if (ptr->rescnt > 0) {
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fprintf(fil, "\t.resource_list = &%s_res[0],\n", ptr->name);
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}
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int link = 0;
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if (ptr->children || ptr->multidev)
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fprintf(fil, "\t.link_list = &%s_links[0],\n", ptr->name);
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else
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fprintf(fil, "\t.link_list = NULL,\n", ptr->name);
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if (ptr->sibling)
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fprintf(fil, "\t.sibling = &%s,\n", ptr->sibling->name);
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if (ptr->chip->chiph_exists) {
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fprintf(fil, "\t.chip_ops = &%s_ops,\n", ptr->chip->name_underscore);
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fprintf(fil, "\t.chip_info = &%s_info_%d,\n", ptr->chip->name_underscore, ptr->chip->id);
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}
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if (ptr->nextdev)
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fprintf(fil, "\t.next=&%s\n", ptr->nextdev->name);
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fprintf(fil, "};\n");
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}
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if (ptr->rescnt > 0) {
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int i=1;
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fprintf(fil, "struct resource %s_res[] = {\n", ptr->name);
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struct resource *r = ptr->res;
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while (r) {
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fprintf(fil, "\t\t{ .flags=IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_");
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if (r->type == IRQ) fprintf(fil, "IRQ");
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if (r->type == DRQ) fprintf(fil, "DRQ");
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if (r->type == IO) fprintf(fil, "IO");
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fprintf(fil, ", .index=0x%x, .base=0x%x,", r->index, r->base);
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if (r->next)
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fprintf(fil, ".next=&%s_res[%d]},\n", ptr->name, i++);
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else
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fprintf(fil, ".next=NULL },\n");
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r = r->next;
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}
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fprintf(fil, "\t };\n");
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}
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if (!ptr->used && ptr->type == device && (ptr->children || ptr->multidev)) {
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fprintf(fil, "struct bus %s_links[] = {\n", ptr->name);
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if (ptr->multidev) {
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struct device *d = ptr;
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while (d) {
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if (device_match(d, ptr)) {
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fprintf(fil, "\t\t[%d] = {\n", d->link);
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fprintf(fil, "\t\t\t.link_num = %d,\n", d->link);
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fprintf(fil, "\t\t\t.dev = &%s,\n", d->name);
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if (d->children)
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fprintf(fil, "\t\t\t.children = &%s,\n", d->children->name);
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if (d->next_sibling && device_match(d->next_sibling, ptr))
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fprintf(fil, "\t\t\t.next=&%s_links[%d],\n", d->name, d->link+1);
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else
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fprintf(fil, "\t\t\t.next = NULL,\n");
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fprintf(fil, "\t\t},\n");
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}
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d = d->next_sibling;
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}
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} else {
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if (ptr->children) {
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fprintf(fil, "\t\t[0] = {\n");
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fprintf(fil, "\t\t\t.link_num = 0,\n");
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fprintf(fil, "\t\t\t.dev = &%s,\n", ptr->name);
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fprintf(fil, "\t\t\t.children = &%s,\n", ptr->children->name);
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fprintf(fil, "\t\t\t.next = NULL,\n");
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fprintf(fil, "\t\t},\n");
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}
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}
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fprintf(fil, "\t};\n");
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}
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if ((ptr->type == chip) && (ptr->chiph_exists)) {
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if (ptr->reg) {
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fprintf(fil, "struct %s_config %s_info_%d\t= {\n",
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ptr->name_underscore, ptr->name_underscore, ptr->id);
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struct reg *r = ptr->reg;
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while (r) {
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fprintf(fil, "\t.%s = %s,\n", r->key, r->value);
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r = r->next;
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}
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fprintf(fil, "};\n\n");
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} else {
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fprintf(fil, "struct %s_config %s_info_%d;\n",
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ptr->name_underscore, ptr->name_underscore, ptr->id);
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}
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}
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}
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static void walk_device_tree(FILE *fil, struct device *ptr, void (*func)(FILE *, struct device*), struct device *chips) {
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do {
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func(fil, ptr);
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ptr = ptr->next_sibling;
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} while (ptr);
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}
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static void inherit_subsystem_ids(FILE *file, struct device *dev)
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{
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struct device *p;
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if (dev->subsystem_vendor != -1 && dev->subsystem_device != -1) {
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/* user already gave us a subsystem vendor/device */
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return;
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}
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for(p = dev; p && p != p->parent; p = p->parent) {
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if (p->bustype != PCI && p->bustype != PCI_DOMAIN)
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continue;
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if (p->inherit_subsystem) {
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dev->subsystem_vendor = p->subsystem_vendor;
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dev->subsystem_device = p->subsystem_device;
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break;
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}
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}
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}
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static void usage(void)
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{
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printf("usage: sconfig vendor/mainboard outputdir [-{s|b|k} outputfile]\n");
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printf("\t-s file\tcreate ramstage static device map\n");
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printf("\t-b file\tcreate bootblock init_mainboard()\n");
|
|
printf("\t-k file\tcreate Kconfig devicetree section\n");
|
|
printf("Defaults to \"-s static.c\" if no {s|b|k} specified.\n");
|
|
exit (1);
|
|
}
|
|
|
|
|
|
int main(int argc, char** argv) {
|
|
if (argc < 3)
|
|
usage();
|
|
|
|
char *mainboard=argv[1];
|
|
char *outputdir=argv[2];
|
|
char *devtree=malloc(strlen(mainboard)+30);
|
|
sprintf(devtree, "src/mainboard/%s/devicetree.cb", mainboard);
|
|
char *outputc;
|
|
|
|
if (argc == 3) {
|
|
scan_mode = STATIC_MODE;
|
|
outputc=malloc(strlen(outputdir)+20);
|
|
sprintf(outputc, "%s/static.c", outputdir);
|
|
} else if ((argc == 5) && (argv[3][0] == '-') && (argv[3][2] == 0)) {
|
|
|
|
switch (argv[3][1]) {
|
|
case 's':
|
|
scan_mode = STATIC_MODE;
|
|
break;
|
|
case 'b':
|
|
scan_mode = BOOTBLOCK_MODE;
|
|
break;
|
|
case 'k':
|
|
scan_mode = KCONFIG_MODE;
|
|
break;
|
|
default:
|
|
usage();
|
|
break;
|
|
}
|
|
char *outputfile=argv[4];
|
|
|
|
outputc=malloc(strlen(outputdir)+strlen(outputfile)+2);
|
|
sprintf(outputc, "%s/%s", outputdir, outputfile);
|
|
}
|
|
|
|
headers.next = 0;
|
|
if (scan_mode == STATIC_MODE) {
|
|
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");
|
|
if (!filec) {
|
|
fprintf(stderr, "Could not open file '%s' for reading: ", devtree);
|
|
perror(NULL);
|
|
exit(1);
|
|
}
|
|
|
|
yyrestart(filec);
|
|
|
|
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;
|
|
}
|
|
|
|
FILE *autogen = fopen(outputc, "w");
|
|
if (!autogen) {
|
|
fprintf(stderr, "Could not open file '%s' for writing: ", outputc);
|
|
perror(NULL);
|
|
exit(1);
|
|
}
|
|
|
|
struct header *h;
|
|
if (scan_mode == STATIC_MODE) {
|
|
|
|
fprintf(autogen, "#include <device/device.h>\n");
|
|
fprintf(autogen, "#include <device/pci.h>\n");
|
|
h = &headers;
|
|
while (h->next) {
|
|
h = h->next;
|
|
fprintf(autogen, "#include \"%s/chip.h\"\n", h->name);
|
|
}
|
|
|
|
walk_device_tree(autogen, &root, inherit_subsystem_ids, NULL);
|
|
fprintf(autogen, "\n/* pass 0 */\n");
|
|
walk_device_tree(autogen, &root, pass0, NULL);
|
|
fprintf(autogen, "\n/* pass 1 */\nstruct mainboard_config mainboard_info_0;\n"
|
|
"struct device *last_dev = &%s;\n", lastdev->name);
|
|
walk_device_tree(autogen, &root, pass1, NULL);
|
|
|
|
} else if (scan_mode == BOOTBLOCK_MODE) {
|
|
h = &headers;
|
|
while (h->next) {
|
|
h = h->next;
|
|
fprintf(autogen, "#include \"%s/bootblock.c\"\n", h->name);
|
|
}
|
|
|
|
fprintf(autogen, "\n#if CONFIG_HAS_MAINBOARD_BOOTBLOCK\n");
|
|
fprintf(autogen, "#include \"mainboard/%s/bootblock.c\"\n", mainboard);
|
|
fprintf(autogen, "#else\n");
|
|
fprintf(autogen, "static unsigned long init_mainboard(int bsp_cpu)\n{\n");
|
|
fprintf(autogen, "\tif (! bsp_cpu) return 0;\n");
|
|
h = &headers;
|
|
while (h->next) {
|
|
h = h->next;
|
|
translate_name(h->name, 0);
|
|
fprintf(autogen, "\tinit_%s();\n", h->name);
|
|
}
|
|
|
|
fprintf(autogen, "\treturn 0;\n}\n");
|
|
fprintf(autogen, "#endif\n");
|
|
|
|
} else if (scan_mode == KCONFIG_MODE) {
|
|
fprintf(autogen, "\nconfig MAINBOARD_DIR\n\tstring\n");
|
|
fprintf(autogen, "\tdefault %s\n", mainboard);
|
|
|
|
fprintf(autogen, "\nconfig MAINBOARD_DEVTREE\n\tdef_bool y\n");
|
|
h = &headers;
|
|
while (h->next) {
|
|
h = h->next;
|
|
translate_name(h->name, 1);
|
|
fprintf(autogen, "\tselect %s\n", h->name);
|
|
}
|
|
}
|
|
|
|
fclose(autogen);
|
|
|
|
return 0;
|
|
}
|