440 lines
13 KiB
C
Executable File
440 lines
13 KiB
C
Executable File
/*
|
|
* 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 "sconfig.h"
|
|
#include "sconfig.tab.h"
|
|
|
|
extern int linenum;
|
|
|
|
struct device *head, *lastdev;
|
|
|
|
struct header headers;
|
|
|
|
static int devcount = 0;
|
|
|
|
static struct device root;
|
|
static struct device mainboard = {
|
|
.name = "mainboard",
|
|
.name_underscore = "mainboard",
|
|
.id = 0,
|
|
.chip = &mainboard,
|
|
.type = chip,
|
|
.chiph_exists = 1,
|
|
.children = &root
|
|
};
|
|
|
|
static 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
|
|
};
|
|
|
|
static struct device *new_dev(struct device *parent, struct device *bus) {
|
|
struct device *dev = malloc(sizeof(struct device));
|
|
memset(dev, 0, sizeof(struct device));
|
|
dev->id = ++devcount;
|
|
dev->parent = parent;
|
|
dev->bus = bus;
|
|
head->next = dev;
|
|
head = dev;
|
|
return dev;
|
|
}
|
|
|
|
static 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, "line %d: %s\n", linenum, str);
|
|
}
|
|
|
|
void postprocess_devtree(void) {
|
|
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;
|
|
}
|
|
}
|
|
|
|
struct device *new_chip(struct device *parent, struct device *bus, char *path) {
|
|
struct device *new_chip = new_dev(parent, bus);
|
|
new_chip->chiph_exists = 1;
|
|
new_chip->name = path;
|
|
new_chip->name_underscore = strdup(new_chip->name);
|
|
char *c;
|
|
for (c = new_chip->name_underscore; *c; c++) {
|
|
if (*c == '/') *c = '_';
|
|
if (*c == '-') *c = '_';
|
|
}
|
|
new_chip->type = chip;
|
|
new_chip->chip = new_chip;
|
|
|
|
struct stat st;
|
|
char *chip_h = malloc(strlen(path)+12);
|
|
sprintf(chip_h, "src/%s/chip.h", path);
|
|
if ((stat(chip_h, &st) == -1) && (errno == ENOENT))
|
|
new_chip->chiph_exists = 0;
|
|
|
|
if (parent->latestchild) {
|
|
parent->latestchild->next_sibling = new_chip;
|
|
parent->latestchild->sibling = new_chip;
|
|
}
|
|
parent->latestchild = new_chip;
|
|
if (!parent->children)
|
|
parent->children = new_chip;
|
|
return new_chip;
|
|
}
|
|
|
|
void add_header(struct device *dev) {
|
|
if (dev->chiph_exists) {
|
|
int include_exists = 0;
|
|
struct header *h = &headers;
|
|
while (h->next) {
|
|
int result = strcmp(dev->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 = dev->name;
|
|
h->next->next = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
struct device *new_device(struct device *parent, struct device *busdev, const int bus, const char *devnum, int enabled) {
|
|
struct device *new_d = new_dev(parent, busdev);
|
|
new_d->bustype = bus;
|
|
|
|
char *tmp;
|
|
new_d->path_a = strtol(strdup(devnum), &tmp, 16);
|
|
if (*tmp == '.') {
|
|
tmp++;
|
|
new_d->path_b = strtol(tmp, NULL, 16);
|
|
}
|
|
|
|
char *name = malloc(10);
|
|
sprintf(name, "_dev%d", new_d->id);
|
|
new_d->name = name;
|
|
new_d->name_underscore = name; // shouldn't be necessary, but avoid 0-ptr
|
|
new_d->type = device;
|
|
new_d->enabled = enabled;
|
|
new_d->chip = new_d->parent->chip;
|
|
|
|
if (parent->latestchild) {
|
|
parent->latestchild->next_sibling = new_d;
|
|
parent->latestchild->sibling = new_d;
|
|
}
|
|
parent->latestchild = new_d;
|
|
if (!parent->children)
|
|
parent->children = new_d;
|
|
|
|
lastdev->nextdev = new_d;
|
|
lastdev = new_d;
|
|
if (bus == PCI) {
|
|
new_d->path = ".type=DEVICE_PATH_PCI,{.pci={ .devfn = PCI_DEVFN(0x%x,%d)}}";
|
|
}
|
|
if (bus == PNP) {
|
|
new_d->path = ".type=DEVICE_PATH_PNP,{.pnp={ .port = 0x%x, .device = 0x%x }}";
|
|
}
|
|
if (bus == I2C) {
|
|
new_d->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x }}";
|
|
}
|
|
if (bus == APIC) {
|
|
new_d->path = ".type=DEVICE_PATH_APIC,{.apic={ .apic_id = 0x%x }}";
|
|
}
|
|
if (bus == APIC_CLUSTER) {
|
|
new_d->path = ".type=DEVICE_PATH_APIC_CLUSTER,{.apic_cluster={ .cluster = 0x%x }}";
|
|
}
|
|
if (bus == PCI_DOMAIN) {
|
|
new_d->path = ".type=DEVICE_PATH_PCI_DOMAIN,{.pci_domain={ .domain = 0x%x }}";
|
|
}
|
|
return new_d;
|
|
}
|
|
|
|
void alias_siblings(struct device *d) {
|
|
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->id = d->id;
|
|
cmp->name = d->name;
|
|
cmp->used = 1;
|
|
cmp->link = ++link;
|
|
}
|
|
}
|
|
cmp = cmp->next_sibling;
|
|
}
|
|
d = d->next_sibling;
|
|
}
|
|
}
|
|
|
|
void add_resource(struct device *dev, int type, int index, int base) {
|
|
struct resource *r = malloc(sizeof(struct resource));
|
|
memset (r, 0, sizeof(struct resource));
|
|
r->type = type;
|
|
r->index = index;
|
|
r->base = base;
|
|
if (dev->res) {
|
|
struct resource *head = dev->res;
|
|
while (head->next) head = head->next;
|
|
head->next = r;
|
|
} else {
|
|
dev->res = r;
|
|
}
|
|
dev->rescnt++;
|
|
}
|
|
|
|
void add_register(struct device *dev, char *name, char *val) {
|
|
struct reg *r = malloc(sizeof(struct reg));
|
|
memset (r, 0, sizeof(struct reg));
|
|
r->key = name;
|
|
r->value = val;
|
|
if (dev->reg) {
|
|
struct reg *head = dev->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;
|
|
dev->reg = r;
|
|
} else {
|
|
while ((head->next) && (strcmp(head->next->key, r->key)<0)) head = head->next;
|
|
r->next = head->next;
|
|
head->next = r;
|
|
}
|
|
} else {
|
|
dev->reg = r;
|
|
}
|
|
}
|
|
|
|
static void pass0(FILE *fil, struct device *ptr) {
|
|
if (ptr->type == device && ptr->id == 0)
|
|
fprintf(fil, "struct bus %s_links[];\n", ptr->name);
|
|
if ((ptr->type == device) && (ptr->id != 0) && (!ptr->used)) {
|
|
fprintf(fil, "static struct device %s;\n", ptr->name);
|
|
if (ptr->rescnt > 0)
|
|
fprintf(fil, "struct resource %s_res[];\n", ptr->name);
|
|
if (ptr->children || ptr->multidev)
|
|
fprintf(fil, "struct bus %s_links[];\n", ptr->name);
|
|
}
|
|
}
|
|
|
|
static void pass1(FILE *fil, struct device *ptr) {
|
|
if (!ptr->used && (ptr->type == device)) {
|
|
if (ptr->id != 0)
|
|
fprintf(fil, "static ", ptr->name);
|
|
fprintf(fil, "struct device %s = {\n", ptr->name);
|
|
fprintf(fil, "\t.ops = %s,\n", (ptr->ops)?(ptr->ops):"0");
|
|
fprintf(fil, "\t.bus = &%s_links[%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.resource_list = &%s_res[0],\n", ptr->name);
|
|
}
|
|
int link = 0;
|
|
if (ptr->children || ptr->multidev)
|
|
fprintf(fil, "\t.link_list = &%s_links[0],\n", ptr->name);
|
|
else
|
|
fprintf(fil, "\t.link_list = NULL,\n", ptr->name);
|
|
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->rescnt > 0) {
|
|
int i=1;
|
|
fprintf(fil, "struct resource %s_res[] = {\n", ptr->name);
|
|
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,", r->index, r->base);
|
|
if (r->next)
|
|
fprintf(fil, ".next=&%s_res[%d]},\n", ptr->name, i++);
|
|
else
|
|
fprintf(fil, ".next=NULL },\n");
|
|
r = r->next;
|
|
}
|
|
fprintf(fil, "\t };\n");
|
|
}
|
|
if (!ptr->used && ptr->type == device && (ptr->children || ptr->multidev)) {
|
|
fprintf(fil, "struct bus %s_links[] = {\n", ptr->name);
|
|
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_num = %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);
|
|
if (d->next_sibling && device_match(d->next_sibling, ptr))
|
|
fprintf(fil, "\t\t\t.next=&%s_links[%d],\n", d->name, d->link+1);
|
|
else
|
|
fprintf(fil, "\t\t\t.next = NULL,\n");
|
|
fprintf(fil, "\t\t},\n");
|
|
}
|
|
d = d->next_sibling;
|
|
}
|
|
} else {
|
|
if (ptr->children) {
|
|
fprintf(fil, "\t\t[0] = {\n");
|
|
fprintf(fil, "\t\t\t.link_num = 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\t.next = NULL,\n");
|
|
fprintf(fil, "\t\t},\n");
|
|
}
|
|
}
|
|
fprintf(fil, "\t};\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);
|
|
}
|
|
}
|
|
}
|
|
|
|
static 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);
|
|
}
|
|
|
|
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");
|
|
|
|
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);
|
|
return 0;
|
|
}
|