blob: b864d1adaff8f17d186d2f6dbfa2402ea44635dd [file] [log] [blame]
/*
* This file is part of the coreinfo project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <arch/io.h>
#include <pci.h>
#include <libpayload.h>
#include "coreinfo.h"
#ifdef CONFIG_MODULE_PCI
struct pci_devices {
pcidev_t device;
unsigned int id;
};
#define MAX_PCI_DEVICES 64
static struct pci_devices devices[MAX_PCI_DEVICES];
static int devices_index;
/* Number of entries to show in the list */
#define MENU_VISIBLE 16
static int menu_selected = 0;
static int menu_first = 0;
static void swap(struct pci_devices *a, struct pci_devices *b)
{
struct pci_devices tmp;
tmp.device = a->device;
tmp.id = a->id;
a->device = b->device;
a->id = b->id;
b->device = tmp.device;
b->id = tmp.id;
}
static int partition(struct pci_devices *list, int len)
{
int val = list[len / 2].device;
int index = 0;
int i;
swap(&list[len / 2], &list[len - 1]);
for (i = 0; i < len - 1; i++) {
if (list[i].device < val) {
swap(&list[i], &list[index]);
index++;
}
}
swap(&list[index], &list[len - 1]);
return index;
}
static void quicksort(struct pci_devices *list, int len)
{
int index;
if (len <= 1)
return;
index = partition(list, len);
quicksort(list, index);
quicksort(&(list[index]), len - index);
}
static void show_config_space(WINDOW *win, int row, int col, int index)
{
unsigned char cspace[256];
pcidev_t dev;
int i, x, y;
dev = devices[index].device;
for (i = 0; i < 256; i ++)
cspace[i] = pci_read_config8(dev, i);
for (y = 0; y < 16; y++) {
for (x = 0; x < 16; x++)
mvwprintw(win, row + y, col + (x * 3), "%2.2X ",
cspace[(y * 16) + x]);
}
}
static int pci_module_redraw(WINDOW *win)
{
unsigned int bus, slot, func;
int i, last;
print_module_title(win, "PCI Device List");
last = menu_first + MENU_VISIBLE;
if (last > devices_index)
last = devices_index;
for (i = 0; i < MENU_VISIBLE; i++) {
int item = menu_first + i;
/* Draw a blank space. */
if (item >= devices_index) {
wattrset(win, COLOR_PAIR(2));
mvwprintw(win, 2 + i, 1, " ");
continue;
}
bus = PCI_BUS(devices[item].device);
slot = PCI_SLOT(devices[item].device);
func = PCI_FUNC(devices[item].device);
if (item == menu_selected)
wattrset(win, COLOR_PAIR(3) | A_BOLD);
else
wattrset(win, COLOR_PAIR(2));
mvwprintw(win, 2 + i, 1, "%X:%2.2X.%2.2X %04X:%04X ",
bus, slot, func,
devices[item].id & 0xffff,
(devices[item].id >> 16) & 0xffff);
wattrset(win, COLOR_PAIR(2));
if (i == 0) {
if (item != 0)
mvwaddch(win, 2 + i, 19, ACS_UARROW);
}
if (i == MENU_VISIBLE - 1) {
if ((item + 1) < devices_index)
mvwaddch(win, 2 + i, 19, ACS_DARROW);
}
}
wattrset(win, COLOR_PAIR(2));
for (i = 0; i < 16; i++)
mvwprintw(win, 2, 26 + (i * 3), "%2.2X ", i);
wmove(win, 3, 25);
for (i = 0; i < 48; i++)
waddch(win, (i == 0) ? ACS_ULCORNER : ACS_HLINE);
for (i = 0; i < 16; i++) {
mvwprintw(win, 4 + i, 23, "%2.2X", i * 16);
wmove(win, 4 + i, 25);
waddch(win, ACS_VLINE);
}
show_config_space(win, 4, 26, menu_selected);
return 0;
}
static void pci_scan_bus(int bus)
{
int slot, func;
unsigned int val;
unsigned char hdr;
for (slot = 0; slot < 0x20; slot++) {
for (func = 0; func < 8; func++) {
pcidev_t dev = PCI_DEV(bus, slot, func);
val = pci_read_config32(dev, REG_VENDOR_ID);
/* Nobody home. */
if (val == 0xffffffff || val == 0x00000000 ||
val == 0x0000ffff || val == 0xffff0000)
continue;
/* FIXME: Remove this arbitrary limitation. */
if (devices_index >= MAX_PCI_DEVICES)
return;
devices[devices_index].device =
PCI_DEV(bus, slot, func);
devices[devices_index++].id = val;
/* If this is a bridge, then follow it. */
hdr = pci_read_config8(dev, REG_HEADER_TYPE);
hdr &= 0x7f;
if (hdr == HEADER_TYPE_BRIDGE ||
hdr == HEADER_TYPE_CARDBUS) {
unsigned int busses;
busses = pci_read_config32(dev, REG_PRIMARY_BUS);
pci_scan_bus((busses >> 8) & 0xff);
}
}
}
quicksort(devices, devices_index);
}
static int pci_module_handle(int key)
{
int ret = 0;
switch (key) {
case KEY_DOWN:
if (menu_selected + 1 < devices_index) {
menu_selected++;
ret = 1;
}
break;
case KEY_UP:
if (menu_selected > 0) {
menu_selected--;
ret = 1;
}
break;
}
if (!ret)
return ret;
if (menu_selected < menu_first)
menu_first = menu_selected;
else if (menu_selected >= menu_first + MENU_VISIBLE) {
menu_first = menu_selected - (MENU_VISIBLE - 1);
if (menu_first < 0)
menu_first = 0;
}
return ret;
}
static int pci_module_init(void)
{
pci_scan_bus(0);
return 0;
}
struct coreinfo_module pci_module = {
.name = "PCI",
.init = pci_module_init,
.redraw = pci_module_redraw,
.handle = pci_module_handle,
};
#else
struct coreinfo_module pci_module = {
};
#endif