2 * This file is part of the coreinfo project.
4 * Copyright (C) 2008 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <libpayload.h>
24 #ifdef CONFIG_MODULE_PCI
27 unsigned short device;
31 static struct pci_devices devices[64];
32 static int devices_index;
34 /* Number of entries to show in the list */
35 #define MENU_VISIBLE 16
37 static int menu_selected = 0;
38 static int menu_first = 0;
40 static void swap(struct pci_devices *a, struct pci_devices *b)
42 struct pci_devices tmp;
44 tmp.device = a->device;
47 a->device = b->device;
50 b->device = tmp.device;
54 static int partition(struct pci_devices *list, int len)
56 int val = list[len / 2].device;
60 swap(&list[len / 2], &list[len - 1]);
62 for (i = 0; i < len - 1; i++) {
63 if (list[i].device < val) {
64 swap(&list[i], &list[index]);
69 swap(&list[index], &list[len - 1]);
74 static void quicksort(struct pci_devices *list, int len)
81 index = partition(list, len);
83 quicksort(list, index);
84 quicksort(&(list[index]), len - index);
87 static void show_config_space(WINDOW *win, int row, int col, int index)
89 unsigned char cspace[64];
93 bus = (devices[index].device >> 8) & 0xff;
94 devfn = devices[index].device & 0xff;
96 for (i = 0; i < 64; i += 4)
97 pci_read_dword(bus, devfn, i, ((unsigned int *)&cspace[i]));
99 for (y = 0; y < 4; y++) {
100 for (x = 0; x < 16; x++)
101 mvwprintw(win, row + y, col + (x * 3), "%2.2X ",
102 cspace[(y * 16) + x]);
106 static int pci_module_redraw(WINDOW *win)
108 unsigned int bus, devfn, func;
111 print_module_title(win, "PCI Device List");
113 last = menu_first + MENU_VISIBLE;
115 if (last > devices_index)
116 last = devices_index;
118 for (i = 0; i < MENU_VISIBLE; i++) {
119 int item = menu_first + i;
121 /* Draw a blank space. */
122 if (item >= devices_index) {
123 wattrset(win, COLOR_PAIR(2));
124 mvwprintw(win, 2 + i, 1, " ");
128 bus = (devices[item].device >> 8) & 0xff;
129 devfn = (devices[item].device & 0xff) / 8;
130 func = (devices[item].device & 0xff) % 8;
132 if (item == menu_selected)
133 wattrset(win, COLOR_PAIR(3) | A_BOLD);
135 wattrset(win, COLOR_PAIR(2));
137 mvwprintw(win, 2 + i, 1, "%X:%2.2X.%2.2X %04X:%04X ",
139 devices[item].id & 0xffff,
140 (devices[item].id >> 16) & 0xffff);
142 wattrset(win, COLOR_PAIR(2));
146 mvwprintw(win, 2 + i, 19, "\30");
148 if (i == MENU_VISIBLE - 1) {
149 if ((item + 1) < devices_index)
150 mvwprintw(win, 2 + i, 19, "\31");
154 wattrset(win, COLOR_PAIR(2));
156 for (i = 0; i < 16; i++)
157 mvwprintw(win, 2, 26 + (i * 3), "%2.2X ", i);
161 for (i = 0; i < 48; i++)
162 waddch(win, (i == 0) ? '\332' : '\304');
164 for (i = 0; i < 4; i++) {
165 mvwprintw(win, 4 + i, 23, "%2.2X", i * 16);
166 wmove(win, 4 + i, 25);
170 show_config_space(win, 4, 26, menu_selected);
175 static void pci_scan_bus(int bus)
181 for (devfn = 0; devfn < 0x100;) {
182 for (func = 0; func < 8; func++, devfn++) {
183 pci_read_dword(bus, devfn, REG_VENDOR_ID, &val);
186 if (val == 0xffffffff || val == 0x00000000 ||
187 val == 0x0000ffff || val == 0xffff0000)
190 /* FIXME: Remove this arbitrary limitation. */
191 if (devices_index >= 64)
194 devices[devices_index].device =
195 ((bus & 0xff) << 8) | (devfn & 0xff);
197 devices[devices_index++].id = val;
199 /* If this is a bridge, then follow it. */
200 pci_read_byte(bus, devfn, REG_HEADER_TYPE, &hdr);
202 if (hdr == HEADER_TYPE_BRIDGE ||
203 hdr == HEADER_TYPE_CARDBUS) {
206 pci_read_dword(bus, devfn, REG_PRIMARY_BUS,
209 pci_scan_bus((busses >> 8) & 0xff);
215 quicksort(devices, devices_index);
218 static int pci_module_handle(int key)
224 if (menu_selected + 1 < devices_index) {
230 if (menu_selected > 0) {
240 if (menu_selected < menu_first)
241 menu_first = menu_selected;
242 else if (menu_selected >= menu_first + MENU_VISIBLE) {
243 menu_first = menu_selected - (MENU_VISIBLE - 1);
251 static int pci_module_init(void)
257 struct coreinfo_module pci_module = {
259 .init = pci_module_init,
260 .redraw = pci_module_redraw,
261 .handle = pci_module_handle,
266 struct coreinfo_module pci_module = {