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Jordan Crouse7249f792008-03-20 00:11:05 +00001/*
2 * This file is part of the coreinfo project.
3 *
4 * Copyright (C) 2008 Advanced Micro Devices, Inc.
5 *
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.
Uwe Hermann3a406fe2008-03-20 01:11:28 +00009 *
Jordan Crouse7249f792008-03-20 00:11:05 +000010 * 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.
Uwe Hermann3a406fe2008-03-20 01:11:28 +000014 *
Jordan Crouse7249f792008-03-20 00:11:05 +000015 * 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
18 */
19
20#include <arch/io.h>
Stefan Reinauer28dff392008-08-13 08:23:06 +000021#include <pci.h>
Uwe Hermann754edf72008-08-04 21:02:07 +000022#include <libpayload.h>
Jordan Crouse7249f792008-03-20 00:11:05 +000023#include "coreinfo.h"
24
Uwe Hermannab5b3e02008-03-31 20:30:18 +000025#ifdef CONFIG_MODULE_PCI
26
Jordan Crouse7249f792008-03-20 00:11:05 +000027struct pci_devices {
Stefan Reinauer28dff392008-08-13 08:23:06 +000028 pcidev_t device;
Jordan Crouse7249f792008-03-20 00:11:05 +000029 unsigned int id;
30};
31
Stefan Reinauer10d0a812008-09-05 15:18:15 +000032#define MAX_PCI_DEVICES 64
33static struct pci_devices devices[MAX_PCI_DEVICES];
Jordan Crouse7249f792008-03-20 00:11:05 +000034static int devices_index;
35
Jordan Crouse7249f792008-03-20 00:11:05 +000036/* Number of entries to show in the list */
37#define MENU_VISIBLE 16
38
39static int menu_selected = 0;
40static int menu_first = 0;
41
42static void swap(struct pci_devices *a, struct pci_devices *b)
43{
44 struct pci_devices tmp;
45
46 tmp.device = a->device;
47 tmp.id = a->id;
48
49 a->device = b->device;
50 a->id = b->id;
51
52 b->device = tmp.device;
53 b->id = tmp.id;
54}
55
56static int partition(struct pci_devices *list, int len)
57{
58 int val = list[len / 2].device;
59 int index = 0;
60 int i;
61
62 swap(&list[len / 2], &list[len - 1]);
63
Uwe Hermann3a406fe2008-03-20 01:11:28 +000064 for (i = 0; i < len - 1; i++) {
Jordan Crouse7249f792008-03-20 00:11:05 +000065 if (list[i].device < val) {
66 swap(&list[i], &list[index]);
67 index++;
68 }
69 }
70
71 swap(&list[index], &list[len - 1]);
Uwe Hermann3a406fe2008-03-20 01:11:28 +000072
Jordan Crouse7249f792008-03-20 00:11:05 +000073 return index;
74}
75
76static void quicksort(struct pci_devices *list, int len)
77{
78 int index;
79
80 if (len <= 1)
81 return;
82
83 index = partition(list, len);
84
85 quicksort(list, index);
86 quicksort(&(list[index]), len - index);
87}
88
Uwe Hermann35845a22008-03-20 20:05:22 +000089static void show_config_space(WINDOW *win, int row, int col, int index)
Jordan Crouse7249f792008-03-20 00:11:05 +000090{
Stefan Reinauer28dff392008-08-13 08:23:06 +000091 unsigned char cspace[256];
92 pcidev_t dev;
Jordan Crouse7249f792008-03-20 00:11:05 +000093 int i, x, y;
94
Stefan Reinauer28dff392008-08-13 08:23:06 +000095 dev = devices[index].device;
Jordan Crouse7249f792008-03-20 00:11:05 +000096
Stefan Reinauer28dff392008-08-13 08:23:06 +000097 for (i = 0; i < 256; i ++)
98 cspace[i] = pci_read_config8(dev, i);
Jordan Crouse7249f792008-03-20 00:11:05 +000099
Stefan Reinauer28dff392008-08-13 08:23:06 +0000100 for (y = 0; y < 16; y++) {
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000101 for (x = 0; x < 16; x++)
102 mvwprintw(win, row + y, col + (x * 3), "%2.2X ",
103 cspace[(y * 16) + x]);
Jordan Crouse7249f792008-03-20 00:11:05 +0000104 }
105}
106
Uwe Hermann0bfb5c42008-03-23 15:34:04 +0000107static int pci_module_redraw(WINDOW *win)
Jordan Crouse7249f792008-03-20 00:11:05 +0000108{
Stefan Reinauer28dff392008-08-13 08:23:06 +0000109 unsigned int bus, slot, func;
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000110 int i, last;
Jordan Crouse7249f792008-03-20 00:11:05 +0000111
112 print_module_title(win, "PCI Device List");
113
114 last = menu_first + MENU_VISIBLE;
115
116 if (last > devices_index)
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000117 last = devices_index;
Jordan Crouse7249f792008-03-20 00:11:05 +0000118
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000119 for (i = 0; i < MENU_VISIBLE; i++) {
Jordan Crouse7249f792008-03-20 00:11:05 +0000120 int item = menu_first + i;
121
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000122 /* Draw a blank space. */
Jordan Crouse7249f792008-03-20 00:11:05 +0000123 if (item >= devices_index) {
124 wattrset(win, COLOR_PAIR(2));
125 mvwprintw(win, 2 + i, 1, " ");
126 continue;
127 }
128
Stefan Reinauer28dff392008-08-13 08:23:06 +0000129 bus = PCI_BUS(devices[item].device);
130 slot = PCI_SLOT(devices[item].device);
131 func = PCI_FUNC(devices[item].device);
Jordan Crouse7249f792008-03-20 00:11:05 +0000132
133 if (item == menu_selected)
134 wattrset(win, COLOR_PAIR(3) | A_BOLD);
135 else
136 wattrset(win, COLOR_PAIR(2));
137
Uwe Hermanna0c00932008-03-27 20:46:49 +0000138 mvwprintw(win, 2 + i, 1, "%X:%2.2X.%2.2X %04X:%04X ",
Stefan Reinauer28dff392008-08-13 08:23:06 +0000139 bus, slot, func,
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000140 devices[item].id & 0xffff,
141 (devices[item].id >> 16) & 0xffff);
Jordan Crouse7249f792008-03-20 00:11:05 +0000142
143 wattrset(win, COLOR_PAIR(2));
144
145 if (i == 0) {
146 if (item != 0)
Ulf Jordand133d9a2008-08-11 20:35:32 +0000147 mvwaddch(win, 2 + i, 19, ACS_UARROW);
Jordan Crouse7249f792008-03-20 00:11:05 +0000148 }
149 if (i == MENU_VISIBLE - 1) {
150 if ((item + 1) < devices_index)
Ulf Jordand133d9a2008-08-11 20:35:32 +0000151 mvwaddch(win, 2 + i, 19, ACS_DARROW);
Jordan Crouse7249f792008-03-20 00:11:05 +0000152 }
153 }
154
155 wattrset(win, COLOR_PAIR(2));
156
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000157 for (i = 0; i < 16; i++)
Jordan Crouse7249f792008-03-20 00:11:05 +0000158 mvwprintw(win, 2, 26 + (i * 3), "%2.2X ", i);
159
160 wmove(win, 3, 25);
161
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000162 for (i = 0; i < 48; i++)
Ulf Jordand133d9a2008-08-11 20:35:32 +0000163 waddch(win, (i == 0) ? ACS_ULCORNER : ACS_HLINE);
Jordan Crouse7249f792008-03-20 00:11:05 +0000164
Stefan Reinauer28dff392008-08-13 08:23:06 +0000165 for (i = 0; i < 16; i++) {
Jordan Crouse7249f792008-03-20 00:11:05 +0000166 mvwprintw(win, 4 + i, 23, "%2.2X", i * 16);
167 wmove(win, 4 + i, 25);
Ulf Jordand133d9a2008-08-11 20:35:32 +0000168 waddch(win, ACS_VLINE);
Jordan Crouse7249f792008-03-20 00:11:05 +0000169 }
170
171 show_config_space(win, 4, 26, menu_selected);
172
173 return 0;
174}
175
176static void pci_scan_bus(int bus)
177{
Stefan Reinauer28dff392008-08-13 08:23:06 +0000178 int slot, func;
Jordan Crouse7249f792008-03-20 00:11:05 +0000179 unsigned int val;
180 unsigned char hdr;
181
Stefan Reinauerbc5379a2008-08-13 09:38:12 +0000182 for (slot = 0; slot < 0x20; slot++) {
Stefan Reinauer28dff392008-08-13 08:23:06 +0000183 for (func = 0; func < 8; func++) {
184 pcidev_t dev = PCI_DEV(bus, slot, func);
Stefan Reinauer88ad6b02008-08-07 19:09:17 +0000185
186 val = pci_read_config32(dev, REG_VENDOR_ID);
Jordan Crouse7249f792008-03-20 00:11:05 +0000187
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000188 /* Nobody home. */
Jordan Crouse7249f792008-03-20 00:11:05 +0000189 if (val == 0xffffffff || val == 0x00000000 ||
190 val == 0x0000ffff || val == 0xffff0000)
191 continue;
192
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000193 /* FIXME: Remove this arbitrary limitation. */
Stefan Reinauer10d0a812008-09-05 15:18:15 +0000194 if (devices_index >= MAX_PCI_DEVICES)
Jordan Crouse7249f792008-03-20 00:11:05 +0000195 return;
196
Stefan Reinauer28dff392008-08-13 08:23:06 +0000197 devices[devices_index].device =
198 PCI_DEV(bus, slot, func);
Jordan Crouse7249f792008-03-20 00:11:05 +0000199
200 devices[devices_index++].id = val;
201
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000202 /* If this is a bridge, then follow it. */
Stefan Reinauer88ad6b02008-08-07 19:09:17 +0000203 hdr = pci_read_config8(dev, REG_HEADER_TYPE);
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000204 hdr &= 0x7f;
Jordan Crouse7249f792008-03-20 00:11:05 +0000205 if (hdr == HEADER_TYPE_BRIDGE ||
206 hdr == HEADER_TYPE_CARDBUS) {
207 unsigned int busses;
208
Stefan Reinauer88ad6b02008-08-07 19:09:17 +0000209 busses = pci_read_config32(dev, REG_PRIMARY_BUS);
Jordan Crouse7249f792008-03-20 00:11:05 +0000210
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000211 pci_scan_bus((busses >> 8) & 0xff);
Jordan Crouse7249f792008-03-20 00:11:05 +0000212
213 }
214 }
215 }
216
217 quicksort(devices, devices_index);
218}
219
Uwe Hermann0bfb5c42008-03-23 15:34:04 +0000220static int pci_module_handle(int key)
Jordan Crouse7249f792008-03-20 00:11:05 +0000221{
222 int ret = 0;
223
Uwe Hermann3a406fe2008-03-20 01:11:28 +0000224 switch (key) {
Jordan Crouse7249f792008-03-20 00:11:05 +0000225 case KEY_DOWN:
226 if (menu_selected + 1 < devices_index) {
227 menu_selected++;
228 ret = 1;
229 }
Jordan Crouse7249f792008-03-20 00:11:05 +0000230 break;
Jordan Crouse7249f792008-03-20 00:11:05 +0000231 case KEY_UP:
232 if (menu_selected > 0) {
233 menu_selected--;
234 ret = 1;
235 }
Jordan Crouse7249f792008-03-20 00:11:05 +0000236 break;
237 }
238
239 if (!ret)
240 return ret;
241
242 if (menu_selected < menu_first)
243 menu_first = menu_selected;
244 else if (menu_selected >= menu_first + MENU_VISIBLE) {
245 menu_first = menu_selected - (MENU_VISIBLE - 1);
246 if (menu_first < 0)
247 menu_first = 0;
248 }
249
Jordan Crouse7249f792008-03-20 00:11:05 +0000250 return ret;
251}
252
Uwe Hermann0bfb5c42008-03-23 15:34:04 +0000253static int pci_module_init(void)
Jordan Crouse7249f792008-03-20 00:11:05 +0000254{
Jordan Crouse7249f792008-03-20 00:11:05 +0000255 pci_scan_bus(0);
Jordan Crouse7249f792008-03-20 00:11:05 +0000256 return 0;
257}
258
259struct coreinfo_module pci_module = {
260 .name = "PCI",
261 .init = pci_module_init,
262 .redraw = pci_module_redraw,
263 .handle = pci_module_handle,
264};
Uwe Hermannab5b3e02008-03-31 20:30:18 +0000265
266#else
267
268struct coreinfo_module pci_module = {
269};
270
271#endif