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,
+};