]> Joshua Wise's Git repositories - netwatch.git/blob - aseg/firstrun.c
add dump-buffer command
[netwatch.git] / aseg / firstrun.c
1 #include <io.h>
2 #include <smi.h>
3 #include <pci.h>
4 #include <reg-82801b.h>
5 #include <output.h>
6 #include "vga-overlay.h"
7 #include <smram.h>
8
9 extern int _bss, _bssend;
10
11 extern void timer_handler(smi_event_t ev);
12 extern void kbc_handler(smi_event_t ev);
13 extern void gbl_rls_handler(smi_event_t ev);
14
15 int bother_3c905(pci_dev_t *dev)
16 {
17         if (dev->vid == 0x10B7 || dev->did == 0x9200)
18         {
19                 int bar;
20                 
21                 outputf("Found a 3c905 to bother");
22                 pci_write16(dev->bus, dev->dev, dev->fn, 0x04, 0x00);
23                 
24                 for (bar = 0; bar < 6; bar++)
25                         if (dev->bars[bar].type != PCI_BAR_NONE)
26                                 pci_write32(dev->bus, dev->dev, dev->fn, 0x10 + bar*4, 0);
27                 
28                 return 1;
29         }
30         return 0;
31 }
32
33 void __firstrun_start() {
34         unsigned char *bp;
35         smram_state_t smram;
36         
37         smram = smram_save_state();
38         smram_tseg_set_state(SMRAM_TSEG_OPEN);
39         
40         for (bp = (void *)&_bss; (void *)bp < (void *)&_bssend; bp++)
41                 *bp = 0;
42         
43         outputf("NetWatch running");
44
45         /* Try really hard to shut up USB_LEGKEY. */
46         pci_write16(0, 31, 2, 0xC0, pci_read16(0, 31, 2, 0xC0));
47         pci_write16(0, 31, 2, 0xC0, 0);
48         pci_write16(0, 31, 4, 0xC0, pci_read16(0, 31, 4, 0xC0));
49         pci_write16(0, 31, 4, 0xC0, 0);
50
51         /* Turn on the SMIs we want */
52         smi_disable();
53         
54         pci_probe(bother_3c905);
55         
56         smi_register_handler(SMI_EVENT_FAST_TIMER, timer_handler);
57         smi_enable_event(SMI_EVENT_FAST_TIMER);
58         
59         smi_register_handler(SMI_EVENT_DEVTRAP_KBC, kbc_handler);
60         smi_enable_event(SMI_EVENT_DEVTRAP_KBC);
61         
62         smi_register_handler(SMI_EVENT_GBL_RLS, gbl_rls_handler);
63         smi_enable_event(SMI_EVENT_GBL_RLS);
64
65         smi_enable();
66         
67         smram_restore_state(smram);
68 }
69
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