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Diffstat (limited to 'payloads/coreinfo/pci_module.c')
-rw-r--r--payloads/coreinfo/pci_module.c299
1 files changed, 299 insertions, 0 deletions
diff --git a/payloads/coreinfo/pci_module.c b/payloads/coreinfo/pci_module.c
new file mode 100644
index 0000000000..723c51377d
--- /dev/null
+++ b/payloads/coreinfo/pci_module.c
@@ -0,0 +1,299 @@
+/*
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include "coreinfo.h"
+
+struct pci_devices {
+ unsigned short device;
+ unsigned int id;
+};
+
+static struct pci_devices devices[64];
+static int devices_index;
+
+#define REG_VENDOR_ID 0x00
+#define REG_HEADER_TYPE 0x0E
+#define REG_PRIMARY_BUS 0x18
+
+#define HEADER_TYPE_NORMAL 0
+#define HEADER_TYPE_BRIDGE 1
+#define HEADER_TYPE_CARDBUS 2
+
+#define PCI_ADDR(_bus, _dev, _reg) \
+(0x80000000 | (_bus << 16) | (_dev << 8) | (_reg & ~3))
+
+/* 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 pci_read_dword(unsigned int bus, unsigned int devfn,
+ unsigned int reg, unsigned int *val)
+{
+ outl(PCI_ADDR(bus, devfn, reg), 0xCF8);
+ *val = inl(0xCFC);
+}
+
+static void pci_read_byte(unsigned int bus, unsigned int devfn,
+ unsigned int reg, unsigned char *val)
+{
+ outl(PCI_ADDR(bus, devfn, reg), 0xCF8);
+ *val = inb(0xCFC + (reg & 3));
+}
+
+static int show_config_space(WINDOW *win, int row, int col, int index)
+{
+ unsigned char cspace[64];
+ int bus, devfn;
+ int i, x, y;
+
+ bus = (devices[index].device >> 8) & 0xFF;
+ devfn = devices[index].device & 0xFF;
+
+ for(i = 0; i < 64; i+= 4)
+ pci_read_dword(bus, devfn, i, ((int *) &cspace[i]));
+
+ for(y = 0; y < 4; y++) {
+ for(x = 0; x < 16; x++)
+ mvwprintw(win, row + y, col + (x * 3), "%2.2X ", cspace[(y * 16) + x]);
+ }
+}
+
+int pci_module_redraw(WINDOW *win)
+{
+ unsigned int bus, devfn, func;
+ int i;
+ int 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 = (devices[item].device >> 8) & 0xFF;
+ devfn = (devices[item].device & 0xFF) / 8;
+ func = (devices[item].device & 0xFF) % 8;
+
+ 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 %X:%X ",
+ bus, devfn, func,
+ devices[item].id & 0xFFFF,
+ (devices[item].id >> 16) & 0xFFFF);
+
+ wattrset(win, COLOR_PAIR(2));
+
+ if (i == 0) {
+ if (item != 0)
+ mvwprintw(win, 2+ i, 19, "\30");
+ }
+ if (i == MENU_VISIBLE - 1) {
+ if ((item + 1) < devices_index)
+ mvwprintw(win, 2+ i, 19, "\31");
+ }
+ }
+
+ 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) ? '\332' : '\304');
+
+ for(i = 0; i < 4; i++) {
+ mvwprintw(win, 4 + i, 23, "%2.2X", i * 16);
+ wmove(win, 4 + i, 25);
+ waddch(win, '\263');
+ }
+
+ show_config_space(win, 4, 26, menu_selected);
+
+ return 0;
+}
+
+static void pci_scan_bus(int bus)
+{
+ int devfn, func;
+ unsigned int val;
+ unsigned char hdr;
+
+ for(devfn = 0; devfn < 0x100; ) {
+ for(func = 0; func < 8; func++, devfn++) {
+ pci_read_dword(bus, devfn, REG_VENDOR_ID, &val);
+
+ /* Nobody home */
+
+ if (val == 0xffffffff || val == 0x00000000 ||
+ val == 0x0000ffff || val == 0xffff0000)
+ continue;
+
+ /* FIXME: Remove this arbitrary limitation */
+
+ if (devices_index >= 64)
+ return;
+
+ devices[devices_index].device =
+ ((bus & 0xFF) << 8) | (devfn & 0xFF);
+
+ devices[devices_index++].id = val;
+
+ /* If this is a bridge, then follow it */
+
+ pci_read_byte(bus, devfn, REG_HEADER_TYPE, &hdr);
+
+ hdr &= 0x7F;
+
+ if (hdr == HEADER_TYPE_BRIDGE ||
+ hdr == HEADER_TYPE_CARDBUS) {
+ unsigned int busses;
+
+ pci_read_dword(bus, devfn, REG_PRIMARY_BUS,
+ &busses);
+
+ pci_scan_bus((busses >> 8) & 0xFF);
+
+ }
+ }
+ }
+
+ quicksort(devices, devices_index);
+}
+
+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;
+}
+
+int pci_module_init(void)
+{
+ unsigned int val;
+ int bus = 0;
+
+
+ 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,
+};