[LinuxBIOS] r487 - in LinuxBIOSv3: device util/x86emu

Author: stepan
Date: 2007-09-05 03:41:52 +0200 (Wed, 05 Sep 2007)
New Revision: 487

Modified:
   LinuxBIOSv3/device/pci_device.c
   LinuxBIOSv3/util/x86emu/vm86.c
Log:
this patch changes vm86.c:do_bios to run_bios(dev, addr).

While doing this, we can remove lot of code duplication about searching
the device, which is already done in the parent pci_device.c.

Signed-off-by: Alex Beregszaszi 
Acked-by: Stefan Reinauer

Modified: LinuxBIOSv3/device/pci_device.c
===================================================================
--- LinuxBIOSv3/device/pci_device.c	2007-08-30 10:25:43 UTC (rev 486)
+++ LinuxBIOSv3/device/pci_device.c	2007-09-05 01:41:52 UTC (rev 487)
@@ -649,9 +649,9 @@

void pci_dev_init(struct device *dev)
 {
+	printk(BIOS_SPEW, "PCI: pci_dev_init\n");
 #if defined(CONFIG_PCI_OPTION_ROM_RUN) && CONFIG_PCI_OPTION_ROM_RUN == 1
    void run_bios(struct device *dev, unsigned long addr);
-	void do_vgabios(void);
    struct rom_header *rom, *ram;

printk(BIOS_INFO, "Probing for option ROM\n");
@@ -661,15 +661,8 @@
    ram = pci_rom_load(dev, rom);
    if (ram == NULL)
    	return;
-#if defined(CONFIG_PCI_OPTION_ROM_RUN_X86EMU) && \
-	CONFIG_PCI_OPTION_ROM_RUN_X86EMU == 1
    run_bios(dev, ram);
 #endif
-#if defined(CONFIG_PCI_OPTION_ROM_RUN_VM86) && \
-	CONFIG_PCI_OPTION_ROM_RUN_VM86 == 1
-	do_vgabios();
-#endif
-#endif
 }

/** Default device operation for PCI devices. */

Modified: LinuxBIOSv3/util/x86emu/vm86.c
===================================================================
--- LinuxBIOSv3/util/x86emu/vm86.c	2007-08-30 10:25:43 UTC (rev 486)
+++ LinuxBIOSv3/util/x86emu/vm86.c	2007-09-05 01:41:52 UTC (rev 487)
@@ -307,13 +307,8 @@
    	);
 }

-void do_vgabios(void)
+void run_bios(struct device *dev, unsigned long addr)
 {
-	struct device *dev;
-	unsigned int busdevfn;
-	unsigned long rom = 0;
-	unsigned char *buf;
-	unsigned int size = 64*1024;
    int i;
    
    /* clear vga bios data area */
@@ -321,41 +316,7 @@
    	*(unsigned char *) i = 0;
    }

-	dev = dev_find_class(PCI_CLASS_DISPLAY_VGA<<8 , 0);
-
-	if (!dev) {
-		printk(BIOS_DEBUG, "NO VGA FOUND\n");
-		return;
-	}
-	printk(BIOS_DEBUG,"found VGA: vid=%x, did=%x\n", dev->vendor, dev->device);
-
-	/* declare rom address here - keep any config data out of the way
-	 * of core LXB stuff */
-#warning fix rom address
-	rom = 0xc0000;
-	pci_write_config32(dev, PCI_ROM_ADDRESS, rom|1);
-	printk(BIOS_DEBUG, "rom base, size: %p\n", (void *)rom);
-
-	buf = (unsigned char *) rom;
-	if ((buf[0] == 0x55) && (buf[1] == 0xaa)) {
-		memcpy((void *) 0xc0000, buf, size);
-
-#warning Implement write_protect_vgabios()
-		//write_protect_vgabios();  // in northbridge
-
-	  	// check signature again
-		buf = (unsigned char *) 0xc0000;
-		if (buf[0]==0x55 && buf[1]==0xAA) {
-			busdevfn = (dev->bus->secondary << 8) | dev->path.u.pci.devfn;
-			printk(BIOS_DEBUG, "bus/devfn = %#x\n", busdevfn);
-
-		    	real_mode_switch_call_vga(busdevfn);
-		} else
-			printk(BIOS_DEBUG, "Failed to copy VGA BIOS to 0xc0000\n");
-	} else 
-		printk(BIOS_DEBUG, "BAD SIGNATURE 0x%x 0x%x\n", buf[0], buf[1]);
-
-	pci_write_config32(dev, PCI_ROM_ADDRESS, 0);
+	real_mode_switch_call_vga((dev->bus->secondary << 8) | dev->path.u.pci.devfn);
 }