294 lines
6.0 KiB
C
294 lines
6.0 KiB
C
/*
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* This file is part of the coreinfo project.
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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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 <arch/io.h>
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#include "coreinfo.h"
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#ifdef CONFIG_MODULE_PCI
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struct pci_devices {
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unsigned short device;
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unsigned int id;
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};
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static struct pci_devices devices[64];
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static int devices_index;
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#define REG_VENDOR_ID 0x00
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#define REG_HEADER_TYPE 0x0e
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#define REG_PRIMARY_BUS 0x18
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#define HEADER_TYPE_NORMAL 0
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#define HEADER_TYPE_BRIDGE 1
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#define HEADER_TYPE_CARDBUS 2
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#define PCI_ADDR(_bus, _dev, _reg) \
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(0x80000000 | (_bus << 16) | (_dev << 8) | (_reg & ~3))
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/* Number of entries to show in the list */
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#define MENU_VISIBLE 16
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static int menu_selected = 0;
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static int menu_first = 0;
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static void swap(struct pci_devices *a, struct pci_devices *b)
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{
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struct pci_devices tmp;
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tmp.device = a->device;
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tmp.id = a->id;
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a->device = b->device;
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a->id = b->id;
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b->device = tmp.device;
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b->id = tmp.id;
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}
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static int partition(struct pci_devices *list, int len)
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{
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int val = list[len / 2].device;
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int index = 0;
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int i;
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swap(&list[len / 2], &list[len - 1]);
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for (i = 0; i < len - 1; i++) {
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if (list[i].device < val) {
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swap(&list[i], &list[index]);
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index++;
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}
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}
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swap(&list[index], &list[len - 1]);
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return index;
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}
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static void quicksort(struct pci_devices *list, int len)
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{
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int index;
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if (len <= 1)
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return;
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index = partition(list, len);
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quicksort(list, index);
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quicksort(&(list[index]), len - index);
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}
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static void pci_read_dword(unsigned int bus, unsigned int devfn,
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unsigned int reg, unsigned int *val)
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{
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outl(PCI_ADDR(bus, devfn, reg), 0xcf8);
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*val = inl(0xcfc);
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}
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static void pci_read_byte(unsigned int bus, unsigned int devfn,
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unsigned int reg, unsigned char *val)
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{
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outl(PCI_ADDR(bus, devfn, reg), 0xcf8);
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*val = inb(0xcfc + (reg & 3));
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}
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static void show_config_space(WINDOW *win, int row, int col, int index)
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{
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unsigned char cspace[64];
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int bus, devfn;
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int i, x, y;
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bus = (devices[index].device >> 8) & 0xff;
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devfn = devices[index].device & 0xff;
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for (i = 0; i < 64; i += 4)
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pci_read_dword(bus, devfn, i, ((unsigned int *)&cspace[i]));
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for (y = 0; y < 4; y++) {
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for (x = 0; x < 16; x++)
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mvwprintw(win, row + y, col + (x * 3), "%2.2X ",
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cspace[(y * 16) + x]);
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}
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}
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static int pci_module_redraw(WINDOW *win)
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{
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unsigned int bus, devfn, func;
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int i, last;
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print_module_title(win, "PCI Device List");
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last = menu_first + MENU_VISIBLE;
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if (last > devices_index)
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last = devices_index;
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for (i = 0; i < MENU_VISIBLE; i++) {
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int item = menu_first + i;
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/* Draw a blank space. */
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if (item >= devices_index) {
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wattrset(win, COLOR_PAIR(2));
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mvwprintw(win, 2 + i, 1, " ");
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continue;
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}
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bus = (devices[item].device >> 8) & 0xff;
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devfn = (devices[item].device & 0xff) / 8;
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func = (devices[item].device & 0xff) % 8;
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if (item == menu_selected)
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wattrset(win, COLOR_PAIR(3) | A_BOLD);
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else
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wattrset(win, COLOR_PAIR(2));
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mvwprintw(win, 2 + i, 1, "%X:%2.2X.%2.2X %04X:%04X ",
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bus, devfn, func,
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devices[item].id & 0xffff,
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(devices[item].id >> 16) & 0xffff);
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wattrset(win, COLOR_PAIR(2));
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if (i == 0) {
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if (item != 0)
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mvwprintw(win, 2 + i, 19, "\30");
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}
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if (i == MENU_VISIBLE - 1) {
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if ((item + 1) < devices_index)
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mvwprintw(win, 2 + i, 19, "\31");
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}
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}
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wattrset(win, COLOR_PAIR(2));
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for (i = 0; i < 16; i++)
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mvwprintw(win, 2, 26 + (i * 3), "%2.2X ", i);
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wmove(win, 3, 25);
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for (i = 0; i < 48; i++)
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waddch(win, (i == 0) ? '\332' : '\304');
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for (i = 0; i < 4; i++) {
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mvwprintw(win, 4 + i, 23, "%2.2X", i * 16);
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wmove(win, 4 + i, 25);
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waddch(win, '\263');
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}
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show_config_space(win, 4, 26, menu_selected);
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return 0;
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}
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static void pci_scan_bus(int bus)
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{
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int devfn, func;
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unsigned int val;
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unsigned char hdr;
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for (devfn = 0; devfn < 0x100;) {
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for (func = 0; func < 8; func++, devfn++) {
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pci_read_dword(bus, devfn, REG_VENDOR_ID, &val);
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/* Nobody home. */
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if (val == 0xffffffff || val == 0x00000000 ||
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val == 0x0000ffff || val == 0xffff0000)
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continue;
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/* FIXME: Remove this arbitrary limitation. */
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if (devices_index >= 64)
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return;
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devices[devices_index].device =
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((bus & 0xff) << 8) | (devfn & 0xff);
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devices[devices_index++].id = val;
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/* If this is a bridge, then follow it. */
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pci_read_byte(bus, devfn, REG_HEADER_TYPE, &hdr);
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hdr &= 0x7f;
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if (hdr == HEADER_TYPE_BRIDGE ||
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hdr == HEADER_TYPE_CARDBUS) {
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unsigned int busses;
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pci_read_dword(bus, devfn, REG_PRIMARY_BUS,
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&busses);
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pci_scan_bus((busses >> 8) & 0xff);
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}
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}
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}
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quicksort(devices, devices_index);
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}
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static int pci_module_handle(int key)
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{
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int ret = 0;
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switch (key) {
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case KEY_DOWN:
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if (menu_selected + 1 < devices_index) {
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menu_selected++;
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ret = 1;
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}
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break;
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case KEY_UP:
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if (menu_selected > 0) {
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menu_selected--;
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ret = 1;
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}
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break;
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}
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if (!ret)
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return ret;
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if (menu_selected < menu_first)
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menu_first = menu_selected;
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else if (menu_selected >= menu_first + MENU_VISIBLE) {
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menu_first = menu_selected - (MENU_VISIBLE - 1);
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if (menu_first < 0)
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menu_first = 0;
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}
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return ret;
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}
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static int pci_module_init(void)
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{
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pci_scan_bus(0);
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return 0;
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}
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struct coreinfo_module pci_module = {
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.name = "PCI",
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.init = pci_module_init,
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.redraw = pci_module_redraw,
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.handle = pci_module_handle,
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};
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#else
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struct coreinfo_module pci_module = {
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};
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#endif
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