X-Git-Url: http://git.joshuawise.com/netwatch.git/blobdiff_plain/a9d1719cd11f54eaa60e5206f220212b771caf7c..31ddf9b375ddf1bd142750bc4762b3268e297619:/grubload/multiboot_c.c diff --git a/grubload/multiboot_c.c b/grubload/multiboot_c.c index be11ab1..372363c 100644 --- a/grubload/multiboot_c.c +++ b/grubload/multiboot_c.c @@ -1,6 +1,6 @@ #include "console.h" #include "loader.h" - +#include #include #include #include @@ -13,8 +13,6 @@ extern char _binary_realmode_bin_start[]; extern int _binary_realmode_bin_size; - - struct info_section { unsigned int signature; @@ -23,9 +21,7 @@ struct info_section void panic(const char *msg) { - puts("PANIC: "); - puts(msg); - puts("\nSystem halted\n"); + outputf("PANIC: %s\nSystem halted\n", msg); while(1) { __asm__("hlt"); } } @@ -39,25 +35,24 @@ void c_start(unsigned int magic, struct mb_info *mbinfo) void (*realmode)() = (void (*)()) 0x4000; show_cursor(); - puts("NetWatch loader\n"); + outputf("NetWatch loader"); if (magic != MULTIBOOT_LOADER_MAGIC) panic("Bootloader was not multiboot compliant; cannot continue."); for (i = 0; i < mbinfo->mod_cnt; i++) { - puts("Module found:\n"); - puts(" Start: "); puthex((unsigned long) mods[i].mod_start); puts("\n"); - puts(" Size: "); puthex((unsigned long)mods[i].mod_end - (unsigned long)mods[i].mod_start); puts("\n"); - puts(" Name: "); puts(mods[i].mod_string); puts("\n"); + outputf("Module found:"); + outputf(" Start: %08x", (unsigned long) mods[i].mod_start); + outputf(" Size: %08x", (unsigned long)mods[i].mod_end - (unsigned long)mods[i].mod_start); + outputf(" Name: %s", mods[i].mod_string); } if (mbinfo->mod_cnt != 1) panic("Expected exactly one module; cannot continue."); - - puts("Current USB state is: "); puthex(pci_read16(0, 31, 2, 0xC0)); puts(" "); puthex(pci_read16(0, 31, 4, 0xC0)); puts("\n"); - puts("Current SMI state is: "); puthex(inl(0x830)); puts("\n"); - puts("Current SMRAMC state is: "); puthex(pci_read8(0, 0, 0, 0x70)); puts("\n"); + outputf("Current SMRAMC state is: %02x", pci_read8(0, 0, 0, 0x70)); + outputf("Current USB state is: %04x %04x", pci_read16(0, 31, 2, 0xC0), pci_read16(0, 31, 4, 0xC0)); + outputf("Current SMI state is: %08x", inl(0x830)); smi_disable(); @@ -66,6 +61,8 @@ void c_start(unsigned int magic, struct mb_info *mbinfo) pci_write16(0, 31, 2, 0xC0, 0); pci_write16(0, 31, 4, 0xC0, pci_read16(0, 31, 4, 0xC0)); pci_write16(0, 31, 4, 0xC0, 0); + + pci_bus_enum(); /* Open the SMRAM aperture and load our ELF. */ old_smramc = smram_save_state(); @@ -84,6 +81,8 @@ void c_start(unsigned int magic, struct mb_info *mbinfo) info->firstrun(); smram_restore_state(old_smramc); + + outputf("New SMRAMC state is: %02x", pci_read8(0, 0, 0, 0x70)); puts("Waiting for a bit before returning to real mode..."); for (i=0; i<0x500000; i++) @@ -94,7 +93,7 @@ void c_start(unsigned int magic, struct mb_info *mbinfo) } puts("\n"); - puts("Now returning to real mode.\n"); + outputf("Now returning to real mode."); memcpy((void *)0x4000, _binary_realmode_bin_start, (int)&_binary_realmode_bin_size); realmode(); // goodbye! }