#define GPIOG_READ (1<<1)
int XGIfb_GetXG21DefaultLVDSModeIdx(void);
+#define XGIFB_ROM_SIZE 65536
+
/* -------------------- Macro definitions ---------------------------- */
#undef XGIFBDEBUG
return 0;
}
-static unsigned char VBIOS_BUF[65535];
-
-static unsigned char *attempt_map_rom(struct pci_dev *dev, void *copy_address)
+static unsigned char *xgifb_copy_rom(struct pci_dev *dev)
{
- u32 rom_size = 0;
- u32 rom_address = 0;
- int j;
-
- /* Get the size of the expansion rom */
- pci_write_config_dword(dev, PCI_ROM_ADDRESS, 0xFFFFFFFF);
- pci_read_config_dword(dev, PCI_ROM_ADDRESS, &rom_size);
- if ((rom_size & 0x01) == 0) {
- printk("No ROM\n");
- return NULL;
- }
+ void __iomem *rom_address;
+ unsigned char *rom_copy;
+ size_t rom_size;
- rom_size &= 0xFFFFF800;
- rom_size = (~rom_size) + 1;
-
- rom_address = pci_resource_start(dev, 0);
- if (rom_address == 0 || rom_address == 0xFFFFFFF0) {
- printk("No suitable rom address found\n");
+ rom_address = pci_map_rom(dev, &rom_size);
+ if (rom_address == NULL)
return NULL;
- }
- printk("ROM Size is %dK, Address is %x\n", rom_size / 1024, rom_address);
+ rom_copy = vzalloc(XGIFB_ROM_SIZE);
+ if (rom_copy == NULL)
+ goto done;
- /* Map ROM */
- pci_write_config_dword(dev, PCI_ROM_ADDRESS, rom_address
- | PCI_ROM_ADDRESS_ENABLE);
+ rom_size = min_t(size_t, rom_size, XGIFB_ROM_SIZE);
+ memcpy_fromio(rom_copy, rom_address, rom_size);
- /* memcpy(copy_address, rom_address, rom_size); */
- {
- unsigned char *virt_addr = ioremap(rom_address, 0x8000000);
-
- unsigned char *from = (unsigned char *) virt_addr;
- unsigned char *to = (unsigned char *) copy_address;
- for (j = 0; j < 65536 /*rom_size*/; j++)
- *to++ = *from++;
- }
-
- pci_write_config_dword(dev, PCI_ROM_ADDRESS, 0);
-
- printk("Copy is done\n");
-
- return copy_address;
+done:
+ pci_unmap_rom(dev, rom_address);
+ return rom_copy;
}
static int __devinit xgifb_probe(struct pci_dev *pdev,
u16 reg16;
u8 reg, reg1;
u8 CR48, CR38;
+ int ret;
+
if (XGIfb_off)
return -ENXIO;
printk("XGIfb: Relocate IO address: %lx [%08lx]\n",
(unsigned long)pci_resource_start(pdev, 2), XGI_Pr.RelIO);
- if (pci_enable_device(pdev))
- return -EIO;
+ if (pci_enable_device(pdev)) {
+ ret = -EIO;
+ goto error;
+ }
XGIRegInit(&XGI_Pr, (unsigned long)XGIhw_ext.pjIOAddress);
if (reg1 != 0xa1) { /*I/O error */
printk("\nXGIfb: I/O error!!!");
- return -EIO;
+ ret = -EIO;
+ goto error;
}
switch (xgi_video_info.chip_id) {
XGIfb_CRT2_write_enable = IND_XGI_CRT2_WRITE_ENABLE_315;
break;
default:
- return -ENODEV;
+ ret = -ENODEV;
+ goto error;
}
printk("XGIfb:chipid = %x\n", xgi_video_info.chip);
XGIhw_ext.pDevice = NULL;
if ((xgi_video_info.chip == XG21) || (XGIfb_userom)) {
- XGIhw_ext.pjVirtualRomBase = attempt_map_rom(pdev, VBIOS_BUF);
-
+ XGIhw_ext.pjVirtualRomBase = xgifb_copy_rom(pdev);
if (XGIhw_ext.pjVirtualRomBase)
printk(KERN_INFO "XGIfb: Video ROM found and mapped to %p\n", XGIhw_ext.pjVirtualRomBase);
else
XGIhw_ext.pSR = vmalloc(sizeof(struct XGI_DSReg) * SR_BUFFER_SIZE);
if (XGIhw_ext.pSR == NULL) {
printk(KERN_ERR "XGIfb: Fatal error: Allocating SRReg space failed.\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto error;
}
XGIhw_ext.pSR[0].jIdx = XGIhw_ext.pSR[0].jVal = 0xFF;
XGIhw_ext.pCR = vmalloc(sizeof(struct XGI_DSReg) * CR_BUFFER_SIZE);
if (XGIhw_ext.pCR == NULL) {
- vfree(XGIhw_ext.pSR);
printk(KERN_ERR "XGIfb: Fatal error: Allocating CRReg space failed.\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto error;
}
XGIhw_ext.pCR[0].jIdx = XGIhw_ext.pCR[0].jVal = 0xFF;
}
#endif
if (XGIfb_get_dram_size()) {
- vfree(XGIhw_ext.pSR);
- vfree(XGIhw_ext.pCR);
printk(KERN_INFO "XGIfb: Fatal error: Unable to determine RAM size.\n");
- return -ENODEV;
+ ret = -ENODEV;
+ goto error;
}
if ((xgifb_mode_idx < 0) || ((XGIbios_mode[xgifb_mode_idx].mode_no) != 0xFF)) {
printk("unable request memory size %x", xgi_video_info.video_size);
printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve frame buffer memory\n");
printk(KERN_ERR "XGIfb: Is there another framebuffer driver active?\n");
- vfree(XGIhw_ext.pSR);
- vfree(XGIhw_ext.pCR);
- return -ENODEV;
+ ret = -ENODEV;
+ goto error;
}
if (!request_mem_region(xgi_video_info.mmio_base, XGIfb_mmio_size, "XGIfb MMIO")) {
printk(KERN_ERR "XGIfb: Fatal error: Unable to reserve MMIO region\n");
- release_mem_region(xgi_video_info.video_base, xgi_video_info.video_size);
- vfree(XGIhw_ext.pSR);
- vfree(XGIhw_ext.pCR);
- return -ENODEV;
+ ret = -ENODEV;
+ goto error_0;
}
xgi_video_info.video_vbase = XGIhw_ext.pjVideoMemoryAddress =
printk(KERN_INFO "XGIfb: Added MTRRs\n");
#endif
- if (register_framebuffer(fb_info) < 0)
- return -EINVAL;
+ if (register_framebuffer(fb_info) < 0) {
+ ret = -EINVAL;
+ goto error_1;
+ }
XGIfb_registered = 1;
dumpVGAReg();
return 0;
+
+error_1:
+ iounmap(xgi_video_info.mmio_vbase);
+ iounmap(xgi_video_info.video_vbase);
+ release_mem_region(xgi_video_info.mmio_base, XGIfb_mmio_size);
+error_0:
+ release_mem_region(xgi_video_info.video_base,
+ xgi_video_info.video_size);
+error:
+ vfree(XGIhw_ext.pjVirtualRomBase);
+ vfree(XGIhw_ext.pSR);
+ vfree(XGIhw_ext.pCR);
+ framebuffer_release(fb_info);
+ return ret;
}
/*****************************************************/
/* Unregister the framebuffer */
/* if (xgi_video_info.registered) { */
unregister_framebuffer(fb_info);
+ iounmap(xgi_video_info.mmio_vbase);
+ iounmap(xgi_video_info.video_vbase);
+ release_mem_region(xgi_video_info.mmio_base, XGIfb_mmio_size);
+ release_mem_region(xgi_video_info.video_base,
+ xgi_video_info.video_size);
+ vfree(XGIhw_ext.pjVirtualRomBase);
framebuffer_release(fb_info);
/* } */
projects / deliverable / linux.git / blobdiff