version T

This commit is contained in:
noxorc 2013-02-21 10:45:36 -05:00
parent 1d931b46c0
commit acea2e9ad8
2 changed files with 260 additions and 0 deletions

114
gnu-efi-3.0/apps/modelist.c Normal file
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#include <efi.h>
#include <efilib.h>
extern EFI_GUID GraphicsOutputProtocol;
static int memcmp(const void *s1, const void *s2, UINTN n)
{
const unsigned char *c1 = s1, *c2 = s2;
int d = 0;
if (!s1 && !s2)
return 0;
if (s1 && !s2)
return 1;
if (!s1 && s2)
return -1;
while (n--) {
d = (int)*c1++ - (int)*c2++;
if (d)
break;
}
return d;
}
static void
print_modes(EFI_GRAPHICS_OUTPUT_PROTOCOL *gop)
{
int i, imax;
EFI_STATUS rc;
imax = gop->Mode->MaxMode;
Print(L"GOP reports MaxMode %d\n", imax);
for (i = 0; i < imax; i++) {
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *info;
UINTN SizeOfInfo;
rc = uefi_call_wrapper(gop->QueryMode, 4, gop, i, &SizeOfInfo,
&info);
if (EFI_ERROR(rc) && rc == EFI_NOT_STARTED) {
rc = uefi_call_wrapper(gop->SetMode, 2, gop,
gop->Mode->Mode);
rc = uefi_call_wrapper(gop->QueryMode, 4, gop, i,
&SizeOfInfo, &info);
}
if (EFI_ERROR(rc)) {
CHAR16 Buffer[64];
StatusToString(Buffer, rc);
Print(L"%d: Bad response from QueryMode: %s (%d)\n",
i, Buffer, rc);
continue;
}
Print(L"%c%d: %dx%d ", memcmp(info,gop->Mode->Info,sizeof(*info)) == 0 ? '*' : ' ', i,
info->HorizontalResolution,
info->VerticalResolution);
switch(info->PixelFormat) {
case PixelRedGreenBlueReserved8BitPerColor:
Print(L"RGBR");
break;
case PixelBlueGreenRedReserved8BitPerColor:
Print(L"BGRR");
break;
case PixelBitMask:
Print(L"R:%08x G:%08x B:%08x X:%08x",
info->PixelInformation.RedMask,
info->PixelInformation.GreenMask,
info->PixelInformation.BlueMask,
info->PixelInformation.ReservedMask);
break;
case PixelBltOnly:
Print(L"(blt only)");
break;
default:
Print(L"(Invalid pixel format)");
break;
}
Print(L" pitch %d\n", info->PixelsPerScanLine);
}
}
static EFI_STATUS
SetWatchdog(UINTN seconds)
{
EFI_STATUS rc;
rc = uefi_call_wrapper(BS->SetWatchdogTimer, 4, seconds, 0x1ffff,
0, NULL);
if (EFI_ERROR(rc)) {
CHAR16 Buffer[64];
StatusToString(Buffer, rc);
Print(L"Bad response from QueryMode: %s (%d)\n", Buffer, rc);
}
return rc;
}
EFI_STATUS
efi_main (EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *systab)
{
EFI_STATUS rc;
EFI_GRAPHICS_OUTPUT_PROTOCOL *gop;
InitializeLib(image_handle, systab);
SetWatchdog(10);
rc = LibLocateProtocol(&GraphicsOutputProtocol, (void **)&gop);
if (EFI_ERROR(rc))
return rc;
print_modes(gop);
SetWatchdog(0);
return EFI_SUCCESS;
}

146
gnu-efi-3.0/apps/route80h.c Normal file
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#include <efi.h>
#include <efilib.h>
/* this example program changes the Reserved Page Route (RPR) bit on ICH10's General
* Control And Status Register (GCS) from LPC to PCI. In practical terms, it routes
* outb to port 80h to the PCI bus. */
#define GCS_OFFSET_ADDR 0x3410
#define GCS_RPR_SHIFT 2
#define GCS_RPR_PCI 1
#define GCS_RPR_LPC 0
#define VENDOR_ID_INTEL 0x8086
#define DEVICE_ID_LPCIF 0x3a16
#define DEVICE_ID_COUGARPOINT_LPCIF 0x1c56
static EFI_HANDLE ImageHandle;
typedef struct {
uint16_t vendor_id; /* 00-01 */
uint16_t device_id; /* 02-03 */
char pad[0xEB]; /* 04-EF */
uint32_t rcba; /* F0-F3 */
uint32_t reserved[3]; /* F4-FF */
} lpcif_t;
static inline void set_bit(volatile uint32_t *flag, int bit, int value)
{
uint32_t val = *flag;
Print(L"current value is 0x%2x\n", val);
if (value) {
val |= (1 << bit);
} else {
val &= ~(1 << bit);
}
Print(L"setting value to 0x%2x\n", val);
*flag = val;
val = *flag;
Print(L"new value is 0x%2x\n", val);
}
static inline int configspace_matches_ids(void *config, uint32_t vendor_id,
uint32_t device_id)
{
uint32_t *cfg = config;
if (cfg[0] == vendor_id && cfg[1] == device_id)
return 1;
return 0;
}
static int is_device(EFI_PCI_IO *pciio, uint16_t vendor_id, uint16_t device_id)
{
lpcif_t lpcif;
EFI_STATUS rc;
rc = uefi_call_wrapper(pciio->Pci.Read, 5, pciio, EfiPciIoWidthUint16, 0, 2, &lpcif);
if (EFI_ERROR(rc))
return 0;
if (vendor_id == lpcif.vendor_id && device_id == lpcif.device_id)
return 1;
return 0;
}
static EFI_STATUS find_pci_device(uint16_t vendor_id, uint16_t device_id,
EFI_PCI_IO **pciio)
{
EFI_STATUS rc;
EFI_HANDLE *Handles;
UINTN NoHandles;
int i;
if (!pciio)
return EFI_INVALID_PARAMETER;
rc = LibLocateHandle(ByProtocol, &PciIoProtocol, NULL, &NoHandles,
&Handles);
if (EFI_ERROR(rc))
return rc;
for (i = 0; i < NoHandles; i++) {
void *pciio_tmp = NULL;
rc = uefi_call_wrapper(BS->OpenProtocol, 6, Handles[i],
&PciIoProtocol, &pciio_tmp, ImageHandle,
NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (EFI_ERROR(rc))
continue;
*pciio = pciio_tmp;
if (!is_device(*pciio, vendor_id, device_id)) {
*pciio = NULL;
continue;
}
return EFI_SUCCESS;
}
return EFI_NOT_FOUND;
}
EFI_STATUS
efi_main (EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *systab)
{
InitializeLib(image_handle, systab);
EFI_PCI_IO *pciio = NULL;
lpcif_t lpcif;
EFI_STATUS rc;
struct {
uint16_t vendor;
uint16_t device;
} devices[] = {
{ VENDOR_ID_INTEL, DEVICE_ID_LPCIF },
{ VENDOR_ID_INTEL, DEVICE_ID_COUGARPOINT_LPCIF },
{ 0, 0 }
};
int i;
ImageHandle = image_handle;
for (i = 0; devices[i].vendor != 0; i++) {
rc = find_pci_device(devices[i].vendor, devices[i].device, &pciio);
if (EFI_ERROR(rc))
continue;
}
if (rc == EFI_NOT_FOUND) {
Print(L"Device not found.\n");
return rc;
} else if (EFI_ERROR(rc)) {
return rc;
}
rc = uefi_call_wrapper(pciio->Pci.Read, 5, pciio, EfiPciIoWidthUint32,
EFI_FIELD_OFFSET(lpcif_t, rcba), 1, &lpcif.rcba);
if (EFI_ERROR(rc))
return rc;
if (!(lpcif.rcba & 1)) {
Print(L"rcrb is not mapped, cannot route port 80h\n");
return EFI_UNSUPPORTED;
}
lpcif.rcba &= ~1UL;
Print(L"rcba: 0x%8x\n", lpcif.rcba, lpcif.rcba);
set_bit((uint32_t *)(uint64_t)(lpcif.rcba + GCS_OFFSET_ADDR),
GCS_RPR_SHIFT, GCS_RPR_PCI);
return EFI_SUCCESS;
}