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1668 lines
43 KiB
1668 lines
43 KiB
/* |
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* intelfb |
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* |
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* Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/ |
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* 945G/945GM/945GME/965G/965GM integrated graphics chips. |
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* |
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* Copyright © 2002, 2003 David Dawes <[email protected]> |
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* 2004 Sylvain Meyer |
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* 2006 David Airlie |
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* |
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* This driver consists of two parts. The first part (intelfbdrv.c) provides |
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* the basic fbdev interfaces, is derived in part from the radeonfb and |
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* vesafb drivers, and is covered by the GPL. The second part (intelfbhw.c) |
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* provides the code to program the hardware. Most of it is derived from |
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* the i810/i830 XFree86 driver. The HW-specific code is covered here |
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* under a dual license (GPL and MIT/XFree86 license). |
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* |
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* Author: David Dawes |
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* |
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*/ |
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|
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/* $DHD: intelfb/intelfbdrv.c,v 1.20 2003/06/27 15:17:40 dawes Exp $ */ |
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|
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/* |
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* Changes: |
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* 01/2003 - Initial driver (0.1.0), no mode switching, no acceleration. |
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* This initial version is a basic core that works a lot like |
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* the vesafb driver. It must be built-in to the kernel, |
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* and the initial video mode must be set with vga=XXX at |
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* boot time. (David Dawes) |
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* |
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* 01/2003 - Version 0.2.0: Mode switching added, colormap support |
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* implemented, Y panning, and soft screen blanking implemented. |
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* No acceleration yet. (David Dawes) |
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* |
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* 01/2003 - Version 0.3.0: fbcon acceleration support added. Module |
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* option handling added. (David Dawes) |
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* |
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* 01/2003 - Version 0.4.0: fbcon HW cursor support added. (David Dawes) |
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* |
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* 01/2003 - Version 0.4.1: Add auto-generation of built-in modes. |
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* (David Dawes) |
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* |
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* 02/2003 - Version 0.4.2: Add check for active non-CRT devices, and |
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* mode validation checks. (David Dawes) |
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* |
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* 02/2003 - Version 0.4.3: Check when the VC is in graphics mode so that |
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* acceleration is disabled while an XFree86 server is running. |
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* (David Dawes) |
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* |
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* 02/2003 - Version 0.4.4: Monitor DPMS support. (David Dawes) |
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* |
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* 02/2003 - Version 0.4.5: Basic XFree86 + fbdev working. (David Dawes) |
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* |
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* 02/2003 - Version 0.5.0: Modify to work with the 2.5.32 kernel as well |
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* as 2.4.x kernels. (David Dawes) |
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* |
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* 02/2003 - Version 0.6.0: Split out HW-specifics into a separate file. |
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* (David Dawes) |
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* |
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* 02/2003 - Version 0.7.0: Test on 852GM/855GM. Acceleration and HW |
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* cursor are disabled on this platform. (David Dawes) |
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* |
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* 02/2003 - Version 0.7.1: Test on 845G. Acceleration is disabled |
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* on this platform. (David Dawes) |
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* |
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* 02/2003 - Version 0.7.2: Test on 830M. Acceleration and HW |
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* cursor are disabled on this platform. (David Dawes) |
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* |
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* 02/2003 - Version 0.7.3: Fix 8-bit modes for mobile platforms |
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* (David Dawes) |
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* |
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* 02/2003 - Version 0.7.4: Add checks for FB and FBCON_HAS_CFB* configured |
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* in the kernel, and add mode bpp verification and default |
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* bpp selection based on which FBCON_HAS_CFB* are configured. |
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* (David Dawes) |
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* |
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* 02/2003 - Version 0.7.5: Add basic package/install scripts based on the |
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* DRI packaging scripts. (David Dawes) |
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* |
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* 04/2003 - Version 0.7.6: Fix typo that affects builds with SMP-enabled |
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* kernels. (David Dawes, reported by Anupam). |
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* |
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* 06/2003 - Version 0.7.7: |
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* Fix Makefile.kernel build problem (Tsutomu Yasuda). |
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* Fix mis-placed #endif (2.4.21 kernel). |
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* |
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* 09/2004 - Version 0.9.0 - by Sylvain Meyer |
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* Port to linux 2.6 kernel fbdev |
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* Fix HW accel and HW cursor on i845G |
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* Use of agpgart for fb memory reservation |
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* Add mtrr support |
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* |
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* 10/2004 - Version 0.9.1 |
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* Use module_param instead of old MODULE_PARM |
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* Some cleanup |
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* |
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* 11/2004 - Version 0.9.2 |
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* Add vram option to reserve more memory than stolen by BIOS |
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* Fix intelfbhw_pan_display typo |
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* Add __initdata annotations |
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* |
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* 04/2008 - Version 0.9.5 |
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* Add support for 965G/965GM. (Maik Broemme <[email protected]>) |
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* |
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* 08/2008 - Version 0.9.6 |
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* Add support for 945GME. (Phil Endecott <[email protected]>) |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/string.h> |
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#include <linux/mm.h> |
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#include <linux/slab.h> |
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#include <linux/delay.h> |
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#include <linux/fb.h> |
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#include <linux/ioport.h> |
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#include <linux/init.h> |
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#include <linux/pci.h> |
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#include <linux/vmalloc.h> |
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#include <linux/pagemap.h> |
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#include <linux/screen_info.h> |
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|
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#include <asm/io.h> |
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|
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#include "intelfb.h" |
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#include "intelfbhw.h" |
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#include "../edid.h" |
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|
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static void get_initial_mode(struct intelfb_info *dinfo); |
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static void update_dinfo(struct intelfb_info *dinfo, |
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struct fb_var_screeninfo *var); |
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static int intelfb_open(struct fb_info *info, int user); |
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static int intelfb_release(struct fb_info *info, int user); |
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static int intelfb_check_var(struct fb_var_screeninfo *var, |
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struct fb_info *info); |
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static int intelfb_set_par(struct fb_info *info); |
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static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, |
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unsigned blue, unsigned transp, |
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struct fb_info *info); |
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|
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static int intelfb_blank(int blank, struct fb_info *info); |
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static int intelfb_pan_display(struct fb_var_screeninfo *var, |
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struct fb_info *info); |
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|
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static void intelfb_fillrect(struct fb_info *info, |
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const struct fb_fillrect *rect); |
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static void intelfb_copyarea(struct fb_info *info, |
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const struct fb_copyarea *region); |
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static void intelfb_imageblit(struct fb_info *info, |
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const struct fb_image *image); |
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static int intelfb_cursor(struct fb_info *info, |
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struct fb_cursor *cursor); |
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|
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static int intelfb_sync(struct fb_info *info); |
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|
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static int intelfb_ioctl(struct fb_info *info, |
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unsigned int cmd, unsigned long arg); |
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|
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static int intelfb_pci_register(struct pci_dev *pdev, |
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const struct pci_device_id *ent); |
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static void intelfb_pci_unregister(struct pci_dev *pdev); |
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static int intelfb_set_fbinfo(struct intelfb_info *dinfo); |
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|
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/* |
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* Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the |
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* mobile chipsets from being registered. |
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*/ |
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#if DETECT_VGA_CLASS_ONLY |
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#define INTELFB_CLASS_MASK ~0 << 8 |
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#else |
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#define INTELFB_CLASS_MASK 0 |
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#endif |
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static const struct pci_device_id intelfb_pci_table[] = { |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_830M, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_830M }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_865G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_865G }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_854, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_854 }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915G }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GM }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GME, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GME }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965G }, |
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{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965GM }, |
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{ 0, } |
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}; |
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|
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/* Global data */ |
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static int num_registered = 0; |
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|
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/* fb ops */ |
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static const struct fb_ops intel_fb_ops = { |
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.owner = THIS_MODULE, |
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.fb_open = intelfb_open, |
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.fb_release = intelfb_release, |
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.fb_check_var = intelfb_check_var, |
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.fb_set_par = intelfb_set_par, |
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.fb_setcolreg = intelfb_setcolreg, |
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.fb_blank = intelfb_blank, |
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.fb_pan_display = intelfb_pan_display, |
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.fb_fillrect = intelfb_fillrect, |
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.fb_copyarea = intelfb_copyarea, |
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.fb_imageblit = intelfb_imageblit, |
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.fb_cursor = intelfb_cursor, |
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.fb_sync = intelfb_sync, |
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.fb_ioctl = intelfb_ioctl |
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}; |
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|
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/* PCI driver module table */ |
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static struct pci_driver intelfb_driver = { |
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.name = "intelfb", |
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.id_table = intelfb_pci_table, |
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.probe = intelfb_pci_register, |
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.remove = intelfb_pci_unregister, |
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}; |
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|
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/* Module description/parameters */ |
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MODULE_AUTHOR("David Dawes <[email protected]>, " |
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"Sylvain Meyer <[email protected]>"); |
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MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS |
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" chipsets"); |
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MODULE_LICENSE("Dual BSD/GPL"); |
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MODULE_DEVICE_TABLE(pci, intelfb_pci_table); |
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|
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static bool accel = 1; |
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static int vram = 4; |
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static bool hwcursor = 0; |
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static bool mtrr = 1; |
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static bool fixed = 0; |
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static bool noinit = 0; |
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static bool noregister = 0; |
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static bool probeonly = 0; |
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static bool idonly = 0; |
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static int bailearly = 0; |
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static int voffset = 48; |
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static char *mode = NULL; |
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module_param(accel, bool, S_IRUGO); |
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MODULE_PARM_DESC(accel, "Enable hardware acceleration"); |
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module_param(vram, int, S_IRUGO); |
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MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB"); |
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module_param(voffset, int, S_IRUGO); |
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MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB"); |
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module_param(hwcursor, bool, S_IRUGO); |
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MODULE_PARM_DESC(hwcursor, "Enable HW cursor"); |
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module_param(mtrr, bool, S_IRUGO); |
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MODULE_PARM_DESC(mtrr, "Enable MTRR support"); |
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module_param(fixed, bool, S_IRUGO); |
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MODULE_PARM_DESC(fixed, "Disable mode switching"); |
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module_param(noinit, bool, 0); |
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MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading"); |
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module_param(noregister, bool, 0); |
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MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)"); |
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module_param(probeonly, bool, 0); |
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MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)"); |
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module_param(idonly, bool, 0); |
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MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)"); |
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module_param(bailearly, int, 0); |
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MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)"); |
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module_param(mode, charp, S_IRUGO); |
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MODULE_PARM_DESC(mode, |
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"Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\""); |
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|
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#ifndef MODULE |
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#define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name))) |
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#define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0) |
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#define OPT_STRVAL(opt, name) (opt + strlen(name)) |
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|
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static __inline__ char * get_opt_string(const char *this_opt, const char *name) |
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{ |
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const char *p; |
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int i; |
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char *ret; |
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|
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p = OPT_STRVAL(this_opt, name); |
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i = 0; |
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while (p[i] && p[i] != ' ' && p[i] != ',') |
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i++; |
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ret = kmalloc(i + 1, GFP_KERNEL); |
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if (ret) { |
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strncpy(ret, p, i); |
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ret[i] = '\0'; |
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} |
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return ret; |
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} |
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|
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static __inline__ int get_opt_int(const char *this_opt, const char *name, |
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int *ret) |
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{ |
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if (!ret) |
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return 0; |
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|
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if (!OPT_EQUAL(this_opt, name)) |
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return 0; |
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|
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*ret = OPT_INTVAL(this_opt, name); |
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return 1; |
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} |
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|
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static __inline__ int get_opt_bool(const char *this_opt, const char *name, |
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bool *ret) |
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{ |
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if (!ret) |
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return 0; |
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|
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if (OPT_EQUAL(this_opt, name)) { |
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if (this_opt[strlen(name)] == '=') |
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*ret = simple_strtoul(this_opt + strlen(name) + 1, |
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NULL, 0); |
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else |
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*ret = 1; |
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} else { |
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if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name)) |
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*ret = 0; |
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else |
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return 0; |
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} |
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return 1; |
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} |
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|
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static int __init intelfb_setup(char *options) |
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{ |
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char *this_opt; |
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|
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DBG_MSG("intelfb_setup\n"); |
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|
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if (!options || !*options) { |
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DBG_MSG("no options\n"); |
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return 0; |
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} else |
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DBG_MSG("options: %s\n", options); |
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|
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/* |
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* These are the built-in options analogous to the module parameters |
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* defined above. |
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* |
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* The syntax is: |
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* |
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* video=intelfb:[mode][,<param>=<val>] ... |
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* |
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* e.g., |
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* |
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* video=intelfb:1024x768-16@75,accel=0 |
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*/ |
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|
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while ((this_opt = strsep(&options, ","))) { |
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if (!*this_opt) |
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continue; |
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if (get_opt_bool(this_opt, "accel", &accel)) |
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; |
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else if (get_opt_int(this_opt, "vram", &vram)) |
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; |
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else if (get_opt_bool(this_opt, "hwcursor", &hwcursor)) |
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; |
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else if (get_opt_bool(this_opt, "mtrr", &mtrr)) |
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; |
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else if (get_opt_bool(this_opt, "fixed", &fixed)) |
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; |
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else if (get_opt_bool(this_opt, "init", &noinit)) |
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noinit = !noinit; |
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else if (OPT_EQUAL(this_opt, "mode=")) |
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mode = get_opt_string(this_opt, "mode="); |
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else |
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mode = this_opt; |
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} |
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|
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return 0; |
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} |
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|
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#endif |
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|
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static int __init intelfb_init(void) |
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{ |
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#ifndef MODULE |
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char *option = NULL; |
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#endif |
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|
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DBG_MSG("intelfb_init\n"); |
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|
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INF_MSG("Framebuffer driver for " |
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"Intel(R) " SUPPORTED_CHIPSETS " chipsets\n"); |
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INF_MSG("Version " INTELFB_VERSION "\n"); |
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|
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if (idonly) |
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return -ENODEV; |
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|
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#ifndef MODULE |
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if (fb_get_options("intelfb", &option)) |
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return -ENODEV; |
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intelfb_setup(option); |
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#endif |
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|
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return pci_register_driver(&intelfb_driver); |
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} |
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|
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static void __exit intelfb_exit(void) |
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{ |
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DBG_MSG("intelfb_exit\n"); |
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pci_unregister_driver(&intelfb_driver); |
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} |
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|
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module_init(intelfb_init); |
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module_exit(intelfb_exit); |
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|
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/*************************************************************** |
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* driver init / cleanup * |
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***************************************************************/ |
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|
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static void cleanup(struct intelfb_info *dinfo) |
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{ |
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DBG_MSG("cleanup\n"); |
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|
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if (!dinfo) |
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return; |
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|
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intelfbhw_disable_irq(dinfo); |
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|
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fb_dealloc_cmap(&dinfo->info->cmap); |
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kfree(dinfo->info->pixmap.addr); |
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|
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if (dinfo->registered) |
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unregister_framebuffer(dinfo->info); |
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|
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arch_phys_wc_del(dinfo->wc_cookie); |
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|
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if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) { |
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agp_unbind_memory(dinfo->gtt_fb_mem); |
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agp_free_memory(dinfo->gtt_fb_mem); |
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} |
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if (dinfo->gtt_cursor_mem) { |
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agp_unbind_memory(dinfo->gtt_cursor_mem); |
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agp_free_memory(dinfo->gtt_cursor_mem); |
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} |
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if (dinfo->gtt_ring_mem) { |
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agp_unbind_memory(dinfo->gtt_ring_mem); |
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agp_free_memory(dinfo->gtt_ring_mem); |
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} |
|
|
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#ifdef CONFIG_FB_INTEL_I2C |
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/* un-register I2C bus */ |
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intelfb_delete_i2c_busses(dinfo); |
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#endif |
|
|
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if (dinfo->mmio_base) |
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iounmap((void __iomem *)dinfo->mmio_base); |
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if (dinfo->aperture.virtual) |
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iounmap((void __iomem *)dinfo->aperture.virtual); |
|
|
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if (dinfo->flag & INTELFB_MMIO_ACQUIRED) |
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release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE); |
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if (dinfo->flag & INTELFB_FB_ACQUIRED) |
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release_mem_region(dinfo->aperture.physical, |
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dinfo->aperture.size); |
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framebuffer_release(dinfo->info); |
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} |
|
|
|
#define bailout(dinfo) do { \ |
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DBG_MSG("bailout\n"); \ |
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cleanup(dinfo); \ |
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INF_MSG("Not going to register framebuffer, exiting...\n"); \ |
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return -ENODEV; \ |
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} while (0) |
|
|
|
|
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static int intelfb_pci_register(struct pci_dev *pdev, |
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const struct pci_device_id *ent) |
|
{ |
|
struct fb_info *info; |
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struct intelfb_info *dinfo; |
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int i, err, dvo; |
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int aperture_size, stolen_size; |
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struct agp_kern_info gtt_info; |
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int agp_memtype; |
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const char *s; |
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struct agp_bridge_data *bridge; |
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int aperture_bar = 0; |
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int mmio_bar = 1; |
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int offset; |
|
|
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DBG_MSG("intelfb_pci_register\n"); |
|
|
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num_registered++; |
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if (num_registered != 1) { |
|
ERR_MSG("Attempted to register %d devices " |
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"(should be only 1).\n", num_registered); |
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return -ENODEV; |
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} |
|
|
|
info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev); |
|
if (!info) |
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return -ENOMEM; |
|
|
|
if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) { |
|
ERR_MSG("Could not allocate cmap for intelfb_info.\n"); |
|
goto err_out_cmap; |
|
} |
|
|
|
dinfo = info->par; |
|
dinfo->info = info; |
|
dinfo->fbops = &intel_fb_ops; |
|
dinfo->pdev = pdev; |
|
|
|
/* Reserve pixmap space. */ |
|
info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL); |
|
if (info->pixmap.addr == NULL) { |
|
ERR_MSG("Cannot reserve pixmap memory.\n"); |
|
goto err_out_pixmap; |
|
} |
|
|
|
/* set early this option because it could be changed by tv encoder |
|
driver */ |
|
dinfo->fixed_mode = fixed; |
|
|
|
/* Enable device. */ |
|
if ((err = pci_enable_device(pdev))) { |
|
ERR_MSG("Cannot enable device.\n"); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
/* Set base addresses. */ |
|
if ((ent->device == PCI_DEVICE_ID_INTEL_915G) || |
|
(ent->device == PCI_DEVICE_ID_INTEL_915GM) || |
|
(ent->device == PCI_DEVICE_ID_INTEL_945G) || |
|
(ent->device == PCI_DEVICE_ID_INTEL_945GM) || |
|
(ent->device == PCI_DEVICE_ID_INTEL_945GME) || |
|
(ent->device == PCI_DEVICE_ID_INTEL_965G) || |
|
(ent->device == PCI_DEVICE_ID_INTEL_965GM)) { |
|
|
|
aperture_bar = 2; |
|
mmio_bar = 0; |
|
} |
|
dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar); |
|
dinfo->aperture.size = pci_resource_len(pdev, aperture_bar); |
|
dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar); |
|
DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n", |
|
(unsigned long long)pci_resource_start(pdev, aperture_bar), |
|
(unsigned long long)pci_resource_len(pdev, aperture_bar), |
|
(unsigned long long)pci_resource_start(pdev, mmio_bar), |
|
(unsigned long long)pci_resource_len(pdev, mmio_bar)); |
|
|
|
/* Reserve the fb and MMIO regions */ |
|
if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size, |
|
INTELFB_MODULE_NAME)) { |
|
ERR_MSG("Cannot reserve FB region.\n"); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
dinfo->flag |= INTELFB_FB_ACQUIRED; |
|
|
|
if (!request_mem_region(dinfo->mmio_base_phys, |
|
INTEL_REG_SIZE, |
|
INTELFB_MODULE_NAME)) { |
|
ERR_MSG("Cannot reserve MMIO region.\n"); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
dinfo->flag |= INTELFB_MMIO_ACQUIRED; |
|
|
|
/* Get the chipset info. */ |
|
dinfo->pci_chipset = pdev->device; |
|
|
|
if (intelfbhw_get_chipset(pdev, dinfo)) { |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) { |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, " |
|
"stolen memory %dkB\n", |
|
pdev->bus->number, PCI_SLOT(pdev->devfn), |
|
PCI_FUNC(pdev->devfn), dinfo->name, |
|
BtoMB(aperture_size), BtoKB(stolen_size)); |
|
|
|
/* Set these from the options. */ |
|
dinfo->accel = accel; |
|
dinfo->hwcursor = hwcursor; |
|
|
|
if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) { |
|
INF_MSG("Acceleration is not supported for the %s chipset.\n", |
|
dinfo->name); |
|
dinfo->accel = 0; |
|
} |
|
|
|
/* Framebuffer parameters - Use all the stolen memory if >= vram */ |
|
if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) { |
|
dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size); |
|
dinfo->fbmem_gart = 0; |
|
} else { |
|
dinfo->fb.size = MB(vram); |
|
dinfo->fbmem_gart = 1; |
|
} |
|
|
|
/* Allocate space for the ring buffer and HW cursor if enabled. */ |
|
if (dinfo->accel) { |
|
dinfo->ring.size = RINGBUFFER_SIZE; |
|
dinfo->ring_tail_mask = dinfo->ring.size - 1; |
|
} |
|
if (dinfo->hwcursor) |
|
dinfo->cursor.size = HW_CURSOR_SIZE; |
|
|
|
/* Use agpgart to manage the GATT */ |
|
if (!(bridge = agp_backend_acquire(pdev))) { |
|
ERR_MSG("cannot acquire agp\n"); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
/* get the current gatt info */ |
|
if (agp_copy_info(bridge, >t_info)) { |
|
ERR_MSG("cannot get agp info\n"); |
|
agp_backend_release(bridge); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
if (MB(voffset) < stolen_size) |
|
offset = (stolen_size >> 12); |
|
else |
|
offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; |
|
|
|
/* set the mem offsets - set them after the already used pages */ |
|
if (dinfo->accel) |
|
dinfo->ring.offset = offset + gtt_info.current_memory; |
|
if (dinfo->hwcursor) |
|
dinfo->cursor.offset = offset + |
|
+ gtt_info.current_memory + (dinfo->ring.size >> 12); |
|
if (dinfo->fbmem_gart) |
|
dinfo->fb.offset = offset + |
|
+ gtt_info.current_memory + (dinfo->ring.size >> 12) |
|
+ (dinfo->cursor.size >> 12); |
|
|
|
/* Allocate memories (which aren't stolen) */ |
|
/* Map the fb and MMIO regions */ |
|
/* ioremap only up to the end of used aperture */ |
|
dinfo->aperture.virtual = (u8 __iomem *)ioremap_wc |
|
(dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) |
|
+ dinfo->fb.size); |
|
if (!dinfo->aperture.virtual) { |
|
ERR_MSG("Cannot remap FB region.\n"); |
|
agp_backend_release(bridge); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
dinfo->mmio_base = |
|
(u8 __iomem *)ioremap(dinfo->mmio_base_phys, |
|
INTEL_REG_SIZE); |
|
if (!dinfo->mmio_base) { |
|
ERR_MSG("Cannot remap MMIO region.\n"); |
|
agp_backend_release(bridge); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
if (dinfo->accel) { |
|
if (!(dinfo->gtt_ring_mem = |
|
agp_allocate_memory(bridge, dinfo->ring.size >> 12, |
|
AGP_NORMAL_MEMORY))) { |
|
ERR_MSG("cannot allocate ring buffer memory\n"); |
|
agp_backend_release(bridge); |
|
cleanup(dinfo); |
|
return -ENOMEM; |
|
} |
|
if (agp_bind_memory(dinfo->gtt_ring_mem, |
|
dinfo->ring.offset)) { |
|
ERR_MSG("cannot bind ring buffer memory\n"); |
|
agp_backend_release(bridge); |
|
cleanup(dinfo); |
|
return -EBUSY; |
|
} |
|
dinfo->ring.physical = dinfo->aperture.physical |
|
+ (dinfo->ring.offset << 12); |
|
dinfo->ring.virtual = dinfo->aperture.virtual |
|
+ (dinfo->ring.offset << 12); |
|
dinfo->ring_head = 0; |
|
} |
|
if (dinfo->hwcursor) { |
|
agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY |
|
: AGP_NORMAL_MEMORY; |
|
if (!(dinfo->gtt_cursor_mem = |
|
agp_allocate_memory(bridge, dinfo->cursor.size >> 12, |
|
agp_memtype))) { |
|
ERR_MSG("cannot allocate cursor memory\n"); |
|
agp_backend_release(bridge); |
|
cleanup(dinfo); |
|
return -ENOMEM; |
|
} |
|
if (agp_bind_memory(dinfo->gtt_cursor_mem, |
|
dinfo->cursor.offset)) { |
|
ERR_MSG("cannot bind cursor memory\n"); |
|
agp_backend_release(bridge); |
|
cleanup(dinfo); |
|
return -EBUSY; |
|
} |
|
if (dinfo->mobile) |
|
dinfo->cursor.physical |
|
= dinfo->gtt_cursor_mem->physical; |
|
else |
|
dinfo->cursor.physical = dinfo->aperture.physical |
|
+ (dinfo->cursor.offset << 12); |
|
dinfo->cursor.virtual = dinfo->aperture.virtual |
|
+ (dinfo->cursor.offset << 12); |
|
} |
|
if (dinfo->fbmem_gart) { |
|
if (!(dinfo->gtt_fb_mem = |
|
agp_allocate_memory(bridge, dinfo->fb.size >> 12, |
|
AGP_NORMAL_MEMORY))) { |
|
WRN_MSG("cannot allocate framebuffer memory - use " |
|
"the stolen one\n"); |
|
dinfo->fbmem_gart = 0; |
|
} |
|
if (agp_bind_memory(dinfo->gtt_fb_mem, |
|
dinfo->fb.offset)) { |
|
WRN_MSG("cannot bind framebuffer memory - use " |
|
"the stolen one\n"); |
|
dinfo->fbmem_gart = 0; |
|
} |
|
} |
|
|
|
/* update framebuffer memory parameters */ |
|
if (!dinfo->fbmem_gart) |
|
dinfo->fb.offset = 0; /* starts at offset 0 */ |
|
dinfo->fb.physical = dinfo->aperture.physical |
|
+ (dinfo->fb.offset << 12); |
|
dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12); |
|
dinfo->fb_start = dinfo->fb.offset << 12; |
|
|
|
/* release agpgart */ |
|
agp_backend_release(bridge); |
|
|
|
if (mtrr) |
|
dinfo->wc_cookie = arch_phys_wc_add(dinfo->aperture.physical, |
|
dinfo->aperture.size); |
|
|
|
DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n", |
|
dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size, |
|
dinfo->fb.virtual); |
|
DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n", |
|
dinfo->mmio_base_phys, INTEL_REG_SIZE, |
|
dinfo->mmio_base); |
|
DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n", |
|
dinfo->ring.physical, dinfo->ring.size, |
|
dinfo->ring.virtual); |
|
DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n", |
|
dinfo->cursor.physical, dinfo->cursor.size, |
|
dinfo->cursor.virtual, dinfo->cursor.offset, |
|
dinfo->cursor.physical); |
|
|
|
DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, " |
|
"noinit = %d\n", vram, accel, hwcursor, fixed, noinit); |
|
DBG_MSG("options: mode = \"%s\"\n", mode ? mode : ""); |
|
|
|
if (probeonly) |
|
bailout(dinfo); |
|
|
|
/* |
|
* Check if the LVDS port or any DVO ports are enabled. If so, |
|
* don't allow mode switching |
|
*/ |
|
dvo = intelfbhw_check_non_crt(dinfo); |
|
if (dvo) { |
|
dinfo->fixed_mode = 1; |
|
WRN_MSG("Non-CRT device is enabled ( "); |
|
i = 0; |
|
while (dvo) { |
|
if (dvo & 1) { |
|
s = intelfbhw_dvo_to_string(1 << i); |
|
if (s) |
|
printk("%s ", s); |
|
} |
|
dvo >>= 1; |
|
++i; |
|
} |
|
printk("). Disabling mode switching.\n"); |
|
} |
|
|
|
if (bailearly == 1) |
|
bailout(dinfo); |
|
|
|
if (FIXED_MODE(dinfo) && |
|
screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) { |
|
ERR_MSG("Video mode must be programmed at boot time.\n"); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
if (bailearly == 2) |
|
bailout(dinfo); |
|
|
|
/* Initialise dinfo and related data. */ |
|
/* If an initial mode was programmed at boot time, get its details. */ |
|
if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) |
|
get_initial_mode(dinfo); |
|
|
|
if (bailearly == 3) |
|
bailout(dinfo); |
|
|
|
if (FIXED_MODE(dinfo)) /* remap fb address */ |
|
update_dinfo(dinfo, &dinfo->initial_var); |
|
|
|
if (bailearly == 4) |
|
bailout(dinfo); |
|
|
|
|
|
if (intelfb_set_fbinfo(dinfo)) { |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
if (bailearly == 5) |
|
bailout(dinfo); |
|
|
|
#ifdef CONFIG_FB_INTEL_I2C |
|
/* register I2C bus */ |
|
intelfb_create_i2c_busses(dinfo); |
|
#endif |
|
|
|
if (bailearly == 6) |
|
bailout(dinfo); |
|
|
|
pci_set_drvdata(pdev, dinfo); |
|
|
|
/* Save the initial register state. */ |
|
i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state, |
|
bailearly > 6 ? bailearly - 6 : 0); |
|
if (i != 0) { |
|
DBG_MSG("intelfbhw_read_hw_state returned %d\n", i); |
|
bailout(dinfo); |
|
} |
|
|
|
intelfbhw_print_hw_state(dinfo, &dinfo->save_state); |
|
|
|
if (bailearly == 18) |
|
bailout(dinfo); |
|
|
|
/* read active pipe */ |
|
dinfo->pipe = intelfbhw_active_pipe(&dinfo->save_state); |
|
|
|
/* Cursor initialisation */ |
|
if (dinfo->hwcursor) { |
|
intelfbhw_cursor_init(dinfo); |
|
intelfbhw_cursor_reset(dinfo); |
|
} |
|
|
|
if (bailearly == 19) |
|
bailout(dinfo); |
|
|
|
/* 2d acceleration init */ |
|
if (dinfo->accel) |
|
intelfbhw_2d_start(dinfo); |
|
|
|
if (bailearly == 20) |
|
bailout(dinfo); |
|
|
|
if (noregister) |
|
bailout(dinfo); |
|
|
|
if (register_framebuffer(dinfo->info) < 0) { |
|
ERR_MSG("Cannot register framebuffer.\n"); |
|
cleanup(dinfo); |
|
return -ENODEV; |
|
} |
|
|
|
dinfo->registered = 1; |
|
dinfo->open = 0; |
|
|
|
init_waitqueue_head(&dinfo->vsync.wait); |
|
spin_lock_init(&dinfo->int_lock); |
|
dinfo->irq_flags = 0; |
|
dinfo->vsync.pan_display = 0; |
|
dinfo->vsync.pan_offset = 0; |
|
|
|
return 0; |
|
|
|
err_out_pixmap: |
|
fb_dealloc_cmap(&info->cmap); |
|
err_out_cmap: |
|
framebuffer_release(info); |
|
return -ENODEV; |
|
} |
|
|
|
static void intelfb_pci_unregister(struct pci_dev *pdev) |
|
{ |
|
struct intelfb_info *dinfo = pci_get_drvdata(pdev); |
|
|
|
DBG_MSG("intelfb_pci_unregister\n"); |
|
|
|
if (!dinfo) |
|
return; |
|
|
|
cleanup(dinfo); |
|
} |
|
|
|
/*************************************************************** |
|
* helper functions * |
|
***************************************************************/ |
|
|
|
__inline__ int intelfb_var_to_depth(const struct fb_var_screeninfo *var) |
|
{ |
|
DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n", |
|
var->bits_per_pixel, var->green.length); |
|
|
|
switch (var->bits_per_pixel) { |
|
case 16: |
|
return (var->green.length == 6) ? 16 : 15; |
|
case 32: |
|
return 24; |
|
default: |
|
return var->bits_per_pixel; |
|
} |
|
} |
|
|
|
|
|
static __inline__ int var_to_refresh(const struct fb_var_screeninfo *var) |
|
{ |
|
int xtot = var->xres + var->left_margin + var->right_margin + |
|
var->hsync_len; |
|
int ytot = var->yres + var->upper_margin + var->lower_margin + |
|
var->vsync_len; |
|
|
|
return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot; |
|
} |
|
|
|
/*************************************************************** |
|
* Various initialisation functions * |
|
***************************************************************/ |
|
|
|
static void get_initial_mode(struct intelfb_info *dinfo) |
|
{ |
|
struct fb_var_screeninfo *var; |
|
int xtot, ytot; |
|
|
|
DBG_MSG("get_initial_mode\n"); |
|
|
|
dinfo->initial_vga = 1; |
|
dinfo->initial_fb_base = screen_info.lfb_base; |
|
dinfo->initial_video_ram = screen_info.lfb_size * KB(64); |
|
dinfo->initial_pitch = screen_info.lfb_linelength; |
|
|
|
var = &dinfo->initial_var; |
|
memset(var, 0, sizeof(*var)); |
|
var->xres = screen_info.lfb_width; |
|
var->yres = screen_info.lfb_height; |
|
var->bits_per_pixel = screen_info.lfb_depth; |
|
switch (screen_info.lfb_depth) { |
|
case 15: |
|
var->bits_per_pixel = 16; |
|
break; |
|
case 24: |
|
var->bits_per_pixel = 32; |
|
break; |
|
} |
|
|
|
DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n", |
|
dinfo->initial_fb_base, dinfo->initial_video_ram, |
|
BtoKB(dinfo->initial_video_ram)); |
|
|
|
DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n", |
|
var->xres, var->yres, var->bits_per_pixel, |
|
dinfo->initial_pitch); |
|
|
|
/* Dummy timing values (assume 60Hz) */ |
|
var->left_margin = (var->xres / 8) & 0xf8; |
|
var->right_margin = 32; |
|
var->upper_margin = 16; |
|
var->lower_margin = 4; |
|
var->hsync_len = (var->xres / 8) & 0xf8; |
|
var->vsync_len = 4; |
|
|
|
xtot = var->xres + var->left_margin + |
|
var->right_margin + var->hsync_len; |
|
ytot = var->yres + var->upper_margin + |
|
var->lower_margin + var->vsync_len; |
|
var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60; |
|
|
|
var->height = -1; |
|
var->width = -1; |
|
|
|
if (var->bits_per_pixel > 8) { |
|
var->red.offset = screen_info.red_pos; |
|
var->red.length = screen_info.red_size; |
|
var->green.offset = screen_info.green_pos; |
|
var->green.length = screen_info.green_size; |
|
var->blue.offset = screen_info.blue_pos; |
|
var->blue.length = screen_info.blue_size; |
|
var->transp.offset = screen_info.rsvd_pos; |
|
var->transp.length = screen_info.rsvd_size; |
|
} else { |
|
var->red.length = 8; |
|
var->green.length = 8; |
|
var->blue.length = 8; |
|
} |
|
} |
|
|
|
static int intelfb_init_var(struct intelfb_info *dinfo) |
|
{ |
|
struct fb_var_screeninfo *var; |
|
int msrc = 0; |
|
|
|
DBG_MSG("intelfb_init_var\n"); |
|
|
|
var = &dinfo->info->var; |
|
if (FIXED_MODE(dinfo)) { |
|
memcpy(var, &dinfo->initial_var, |
|
sizeof(struct fb_var_screeninfo)); |
|
msrc = 5; |
|
} else { |
|
const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev); |
|
u8 *edid_d = NULL; |
|
|
|
if (edid_s) { |
|
edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL); |
|
|
|
if (edid_d) { |
|
fb_edid_to_monspecs(edid_d, |
|
&dinfo->info->monspecs); |
|
kfree(edid_d); |
|
} |
|
} |
|
|
|
if (mode) { |
|
printk("intelfb: Looking for mode in private " |
|
"database\n"); |
|
msrc = fb_find_mode(var, dinfo->info, mode, |
|
dinfo->info->monspecs.modedb, |
|
dinfo->info->monspecs.modedb_len, |
|
NULL, 0); |
|
|
|
if (msrc && msrc > 1) { |
|
printk("intelfb: No mode in private database, " |
|
"intelfb: looking for mode in global " |
|
"database "); |
|
msrc = fb_find_mode(var, dinfo->info, mode, |
|
NULL, 0, NULL, 0); |
|
|
|
if (msrc) |
|
msrc |= 8; |
|
} |
|
|
|
} |
|
|
|
if (!msrc) |
|
msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE, |
|
NULL, 0, NULL, 0); |
|
} |
|
|
|
if (!msrc) { |
|
ERR_MSG("Cannot find a suitable video mode.\n"); |
|
return 1; |
|
} |
|
|
|
INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres, |
|
var->bits_per_pixel, var_to_refresh(var)); |
|
|
|
DBG_MSG("Initial video mode is from %d.\n", msrc); |
|
|
|
#if ALLOCATE_FOR_PANNING |
|
/* Allow use of half of the video ram for panning */ |
|
var->xres_virtual = var->xres; |
|
var->yres_virtual = |
|
dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres); |
|
if (var->yres_virtual < var->yres) |
|
var->yres_virtual = var->yres; |
|
#else |
|
var->yres_virtual = var->yres; |
|
#endif |
|
|
|
if (dinfo->accel) |
|
var->accel_flags |= FB_ACCELF_TEXT; |
|
else |
|
var->accel_flags &= ~FB_ACCELF_TEXT; |
|
|
|
return 0; |
|
} |
|
|
|
static int intelfb_set_fbinfo(struct intelfb_info *dinfo) |
|
{ |
|
struct fb_info *info = dinfo->info; |
|
|
|
DBG_MSG("intelfb_set_fbinfo\n"); |
|
|
|
info->flags = FBINFO_FLAG_DEFAULT; |
|
info->fbops = &intel_fb_ops; |
|
info->pseudo_palette = dinfo->pseudo_palette; |
|
|
|
info->pixmap.size = 64*1024; |
|
info->pixmap.buf_align = 8; |
|
info->pixmap.access_align = 32; |
|
info->pixmap.flags = FB_PIXMAP_SYSTEM; |
|
|
|
if (intelfb_init_var(dinfo)) |
|
return 1; |
|
|
|
info->pixmap.scan_align = 1; |
|
strcpy(info->fix.id, dinfo->name); |
|
info->fix.smem_start = dinfo->fb.physical; |
|
info->fix.smem_len = dinfo->fb.size; |
|
info->fix.type = FB_TYPE_PACKED_PIXELS; |
|
info->fix.type_aux = 0; |
|
info->fix.xpanstep = 8; |
|
info->fix.ypanstep = 1; |
|
info->fix.ywrapstep = 0; |
|
info->fix.mmio_start = dinfo->mmio_base_phys; |
|
info->fix.mmio_len = INTEL_REG_SIZE; |
|
info->fix.accel = FB_ACCEL_I830; |
|
update_dinfo(dinfo, &info->var); |
|
|
|
return 0; |
|
} |
|
|
|
/* Update dinfo to match the active video mode. */ |
|
static void update_dinfo(struct intelfb_info *dinfo, |
|
struct fb_var_screeninfo *var) |
|
{ |
|
DBG_MSG("update_dinfo\n"); |
|
|
|
dinfo->bpp = var->bits_per_pixel; |
|
dinfo->depth = intelfb_var_to_depth(var); |
|
dinfo->xres = var->xres; |
|
dinfo->yres = var->xres; |
|
dinfo->pixclock = var->pixclock; |
|
|
|
dinfo->info->fix.visual = dinfo->visual; |
|
dinfo->info->fix.line_length = dinfo->pitch; |
|
|
|
switch (dinfo->bpp) { |
|
case 8: |
|
dinfo->visual = FB_VISUAL_PSEUDOCOLOR; |
|
dinfo->pitch = var->xres_virtual; |
|
break; |
|
case 16: |
|
dinfo->visual = FB_VISUAL_TRUECOLOR; |
|
dinfo->pitch = var->xres_virtual * 2; |
|
break; |
|
case 32: |
|
dinfo->visual = FB_VISUAL_TRUECOLOR; |
|
dinfo->pitch = var->xres_virtual * 4; |
|
break; |
|
} |
|
|
|
/* Make sure the line length is a aligned correctly. */ |
|
if (IS_I9XX(dinfo)) |
|
dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX); |
|
else |
|
dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT); |
|
|
|
if (FIXED_MODE(dinfo)) |
|
dinfo->pitch = dinfo->initial_pitch; |
|
|
|
dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual; |
|
dinfo->info->fix.line_length = dinfo->pitch; |
|
dinfo->info->fix.visual = dinfo->visual; |
|
} |
|
|
|
/* fbops functions */ |
|
|
|
/*************************************************************** |
|
* fbdev interface * |
|
***************************************************************/ |
|
|
|
static int intelfb_open(struct fb_info *info, int user) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
|
|
if (user) |
|
dinfo->open++; |
|
|
|
return 0; |
|
} |
|
|
|
static int intelfb_release(struct fb_info *info, int user) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
|
|
if (user) { |
|
dinfo->open--; |
|
msleep(1); |
|
if (!dinfo->open) |
|
intelfbhw_disable_irq(dinfo); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int intelfb_check_var(struct fb_var_screeninfo *var, |
|
struct fb_info *info) |
|
{ |
|
int change_var = 0; |
|
struct fb_var_screeninfo v; |
|
struct intelfb_info *dinfo; |
|
static int first = 1; |
|
int i; |
|
/* Good pitches to allow tiling. Don't care about pitches < 1024. */ |
|
static const int pitches[] = { |
|
128 * 8, |
|
128 * 16, |
|
128 * 32, |
|
128 * 64, |
|
0 |
|
}; |
|
|
|
DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags); |
|
|
|
dinfo = GET_DINFO(info); |
|
|
|
/* update the pitch */ |
|
if (intelfbhw_validate_mode(dinfo, var) != 0) |
|
return -EINVAL; |
|
|
|
v = *var; |
|
|
|
for (i = 0; pitches[i] != 0; i++) { |
|
if (pitches[i] >= v.xres_virtual) { |
|
v.xres_virtual = pitches[i]; |
|
break; |
|
} |
|
} |
|
|
|
/* Check for a supported bpp. */ |
|
if (v.bits_per_pixel <= 8) |
|
v.bits_per_pixel = 8; |
|
else if (v.bits_per_pixel <= 16) { |
|
if (v.bits_per_pixel == 16) |
|
v.green.length = 6; |
|
v.bits_per_pixel = 16; |
|
} else if (v.bits_per_pixel <= 32) |
|
v.bits_per_pixel = 32; |
|
else |
|
return -EINVAL; |
|
|
|
change_var = ((info->var.xres != var->xres) || |
|
(info->var.yres != var->yres) || |
|
(info->var.xres_virtual != var->xres_virtual) || |
|
(info->var.yres_virtual != var->yres_virtual) || |
|
(info->var.bits_per_pixel != var->bits_per_pixel) || |
|
memcmp(&info->var.red, &var->red, sizeof(var->red)) || |
|
memcmp(&info->var.green, &var->green, |
|
sizeof(var->green)) || |
|
memcmp(&info->var.blue, &var->blue, sizeof(var->blue))); |
|
|
|
if (FIXED_MODE(dinfo) && |
|
(change_var || |
|
var->yres_virtual > dinfo->initial_var.yres_virtual || |
|
var->yres_virtual < dinfo->initial_var.yres || |
|
var->xoffset || var->nonstd)) { |
|
if (first) { |
|
ERR_MSG("Changing the video mode is not supported.\n"); |
|
first = 0; |
|
} |
|
return -EINVAL; |
|
} |
|
|
|
switch (intelfb_var_to_depth(&v)) { |
|
case 8: |
|
v.red.offset = v.green.offset = v.blue.offset = 0; |
|
v.red.length = v.green.length = v.blue.length = 8; |
|
v.transp.offset = v.transp.length = 0; |
|
break; |
|
case 15: |
|
v.red.offset = 10; |
|
v.green.offset = 5; |
|
v.blue.offset = 0; |
|
v.red.length = v.green.length = v.blue.length = 5; |
|
v.transp.offset = v.transp.length = 0; |
|
break; |
|
case 16: |
|
v.red.offset = 11; |
|
v.green.offset = 5; |
|
v.blue.offset = 0; |
|
v.red.length = 5; |
|
v.green.length = 6; |
|
v.blue.length = 5; |
|
v.transp.offset = v.transp.length = 0; |
|
break; |
|
case 24: |
|
v.red.offset = 16; |
|
v.green.offset = 8; |
|
v.blue.offset = 0; |
|
v.red.length = v.green.length = v.blue.length = 8; |
|
v.transp.offset = v.transp.length = 0; |
|
break; |
|
case 32: |
|
v.red.offset = 16; |
|
v.green.offset = 8; |
|
v.blue.offset = 0; |
|
v.red.length = v.green.length = v.blue.length = 8; |
|
v.transp.offset = 24; |
|
v.transp.length = 8; |
|
break; |
|
} |
|
|
|
if (v.xoffset > v.xres_virtual - v.xres) |
|
v.xoffset = v.xres_virtual - v.xres; |
|
if (v.yoffset > v.yres_virtual - v.yres) |
|
v.yoffset = v.yres_virtual - v.yres; |
|
|
|
v.red.msb_right = v.green.msb_right = v.blue.msb_right = |
|
v.transp.msb_right = 0; |
|
|
|
*var = v; |
|
|
|
return 0; |
|
} |
|
|
|
static int intelfb_set_par(struct fb_info *info) |
|
{ |
|
struct intelfb_hwstate *hw; |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
|
|
if (FIXED_MODE(dinfo)) { |
|
ERR_MSG("Changing the video mode is not supported.\n"); |
|
return -EINVAL; |
|
} |
|
|
|
hw = kmalloc(sizeof(*hw), GFP_ATOMIC); |
|
if (!hw) |
|
return -ENOMEM; |
|
|
|
DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres, |
|
info->var.yres, info->var.bits_per_pixel); |
|
|
|
/* |
|
* Disable VCO prior to timing register change. |
|
*/ |
|
OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE); |
|
|
|
intelfb_blank(FB_BLANK_POWERDOWN, info); |
|
|
|
if (ACCEL(dinfo, info)) |
|
intelfbhw_2d_stop(dinfo); |
|
|
|
memcpy(hw, &dinfo->save_state, sizeof(*hw)); |
|
if (intelfbhw_mode_to_hw(dinfo, hw, &info->var)) |
|
goto invalid_mode; |
|
if (intelfbhw_program_mode(dinfo, hw, 0)) |
|
goto invalid_mode; |
|
|
|
#if REGDUMP > 0 |
|
intelfbhw_read_hw_state(dinfo, hw, 0); |
|
intelfbhw_print_hw_state(dinfo, hw); |
|
#endif |
|
|
|
update_dinfo(dinfo, &info->var); |
|
|
|
if (ACCEL(dinfo, info)) |
|
intelfbhw_2d_start(dinfo); |
|
|
|
intelfb_pan_display(&info->var, info); |
|
|
|
intelfb_blank(FB_BLANK_UNBLANK, info); |
|
|
|
if (ACCEL(dinfo, info)) { |
|
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | |
|
FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | |
|
FBINFO_HWACCEL_IMAGEBLIT; |
|
} else |
|
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; |
|
|
|
kfree(hw); |
|
return 0; |
|
invalid_mode: |
|
kfree(hw); |
|
return -EINVAL; |
|
} |
|
|
|
static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, |
|
unsigned blue, unsigned transp, |
|
struct fb_info *info) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
|
|
#if VERBOSE > 0 |
|
DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth); |
|
#endif |
|
|
|
if (regno > 255) |
|
return 1; |
|
|
|
if (dinfo->depth == 8) { |
|
red >>= 8; |
|
green >>= 8; |
|
blue >>= 8; |
|
|
|
intelfbhw_setcolreg(dinfo, regno, red, green, blue, |
|
transp); |
|
} |
|
|
|
if (regno < 16) { |
|
switch (dinfo->depth) { |
|
case 15: |
|
dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) | |
|
((green & 0xf800) >> 6) | |
|
((blue & 0xf800) >> 11); |
|
break; |
|
case 16: |
|
dinfo->pseudo_palette[regno] = (red & 0xf800) | |
|
((green & 0xfc00) >> 5) | |
|
((blue & 0xf800) >> 11); |
|
break; |
|
case 24: |
|
dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) | |
|
(green & 0xff00) | |
|
((blue & 0xff00) >> 8); |
|
break; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int intelfb_blank(int blank, struct fb_info *info) |
|
{ |
|
intelfbhw_do_blank(blank, info); |
|
return 0; |
|
} |
|
|
|
static int intelfb_pan_display(struct fb_var_screeninfo *var, |
|
struct fb_info *info) |
|
{ |
|
intelfbhw_pan_display(var, info); |
|
return 0; |
|
} |
|
|
|
/* When/if we have our own ioctls. */ |
|
static int intelfb_ioctl(struct fb_info *info, unsigned int cmd, |
|
unsigned long arg) |
|
{ |
|
int retval = 0; |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
u32 pipe = 0; |
|
|
|
switch (cmd) { |
|
case FBIO_WAITFORVSYNC: |
|
if (get_user(pipe, (__u32 __user *)arg)) |
|
return -EFAULT; |
|
|
|
retval = intelfbhw_wait_for_vsync(dinfo, pipe); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
return retval; |
|
} |
|
|
|
static void intelfb_fillrect (struct fb_info *info, |
|
const struct fb_fillrect *rect) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
u32 rop, color; |
|
|
|
#if VERBOSE > 0 |
|
DBG_MSG("intelfb_fillrect\n"); |
|
#endif |
|
|
|
if (!ACCEL(dinfo, info) || dinfo->depth == 4) { |
|
cfb_fillrect(info, rect); |
|
return; |
|
} |
|
|
|
if (rect->rop == ROP_COPY) |
|
rop = PAT_ROP_GXCOPY; |
|
else /* ROP_XOR */ |
|
rop = PAT_ROP_GXXOR; |
|
|
|
if (dinfo->depth != 8) |
|
color = dinfo->pseudo_palette[rect->color]; |
|
else |
|
color = rect->color; |
|
|
|
intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy, |
|
rect->width, rect->height, color, |
|
dinfo->pitch, info->var.bits_per_pixel, |
|
rop); |
|
} |
|
|
|
static void intelfb_copyarea(struct fb_info *info, |
|
const struct fb_copyarea *region) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
|
|
#if VERBOSE > 0 |
|
DBG_MSG("intelfb_copyarea\n"); |
|
#endif |
|
|
|
if (!ACCEL(dinfo, info) || dinfo->depth == 4) { |
|
cfb_copyarea(info, region); |
|
return; |
|
} |
|
|
|
intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx, |
|
region->dy, region->width, region->height, |
|
dinfo->pitch, info->var.bits_per_pixel); |
|
} |
|
|
|
static void intelfb_imageblit(struct fb_info *info, |
|
const struct fb_image *image) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
u32 fgcolor, bgcolor; |
|
|
|
#if VERBOSE > 0 |
|
DBG_MSG("intelfb_imageblit\n"); |
|
#endif |
|
|
|
if (!ACCEL(dinfo, info) || dinfo->depth == 4 |
|
|| image->depth != 1) { |
|
cfb_imageblit(info, image); |
|
return; |
|
} |
|
|
|
if (dinfo->depth != 8) { |
|
fgcolor = dinfo->pseudo_palette[image->fg_color]; |
|
bgcolor = dinfo->pseudo_palette[image->bg_color]; |
|
} else { |
|
fgcolor = image->fg_color; |
|
bgcolor = image->bg_color; |
|
} |
|
|
|
if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width, |
|
image->height, image->data, |
|
image->dx, image->dy, |
|
dinfo->pitch, info->var.bits_per_pixel)) { |
|
cfb_imageblit(info, image); |
|
return; |
|
} |
|
} |
|
|
|
static int intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
u32 physical; |
|
#if VERBOSE > 0 |
|
DBG_MSG("intelfb_cursor\n"); |
|
#endif |
|
|
|
if (!dinfo->hwcursor) |
|
return -ENODEV; |
|
|
|
intelfbhw_cursor_hide(dinfo); |
|
|
|
/* If XFree killed the cursor - restore it */ |
|
physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical : |
|
(dinfo->cursor.offset << 12); |
|
|
|
if (INREG(CURSOR_A_BASEADDR) != physical) { |
|
u32 fg, bg; |
|
|
|
DBG_MSG("the cursor was killed - restore it !!\n"); |
|
DBG_MSG("size %d, %d pos %d, %d\n", |
|
cursor->image.width, cursor->image.height, |
|
cursor->image.dx, cursor->image.dy); |
|
|
|
intelfbhw_cursor_init(dinfo); |
|
intelfbhw_cursor_reset(dinfo); |
|
intelfbhw_cursor_setpos(dinfo, cursor->image.dx, |
|
cursor->image.dy); |
|
|
|
if (dinfo->depth != 8) { |
|
fg =dinfo->pseudo_palette[cursor->image.fg_color]; |
|
bg =dinfo->pseudo_palette[cursor->image.bg_color]; |
|
} else { |
|
fg = cursor->image.fg_color; |
|
bg = cursor->image.bg_color; |
|
} |
|
intelfbhw_cursor_setcolor(dinfo, bg, fg); |
|
intelfbhw_cursor_load(dinfo, cursor->image.width, |
|
cursor->image.height, |
|
dinfo->cursor_src); |
|
|
|
if (cursor->enable) |
|
intelfbhw_cursor_show(dinfo); |
|
return 0; |
|
} |
|
|
|
if (cursor->set & FB_CUR_SETPOS) { |
|
u32 dx, dy; |
|
|
|
dx = cursor->image.dx - info->var.xoffset; |
|
dy = cursor->image.dy - info->var.yoffset; |
|
|
|
intelfbhw_cursor_setpos(dinfo, dx, dy); |
|
} |
|
|
|
if (cursor->set & FB_CUR_SETSIZE) { |
|
if (cursor->image.width > 64 || cursor->image.height > 64) |
|
return -ENXIO; |
|
|
|
intelfbhw_cursor_reset(dinfo); |
|
} |
|
|
|
if (cursor->set & FB_CUR_SETCMAP) { |
|
u32 fg, bg; |
|
|
|
if (dinfo->depth != 8) { |
|
fg = dinfo->pseudo_palette[cursor->image.fg_color]; |
|
bg = dinfo->pseudo_palette[cursor->image.bg_color]; |
|
} else { |
|
fg = cursor->image.fg_color; |
|
bg = cursor->image.bg_color; |
|
} |
|
|
|
intelfbhw_cursor_setcolor(dinfo, bg, fg); |
|
} |
|
|
|
if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { |
|
u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8); |
|
u32 size = s_pitch * cursor->image.height; |
|
u8 *dat = (u8 *) cursor->image.data; |
|
u8 *msk = (u8 *) cursor->mask; |
|
u8 src[64]; |
|
u32 i; |
|
|
|
if (cursor->image.depth != 1) |
|
return -ENXIO; |
|
|
|
switch (cursor->rop) { |
|
case ROP_XOR: |
|
for (i = 0; i < size; i++) |
|
src[i] = dat[i] ^ msk[i]; |
|
break; |
|
case ROP_COPY: |
|
default: |
|
for (i = 0; i < size; i++) |
|
src[i] = dat[i] & msk[i]; |
|
break; |
|
} |
|
|
|
/* save the bitmap to restore it when XFree will |
|
make the cursor dirty */ |
|
memcpy(dinfo->cursor_src, src, size); |
|
|
|
intelfbhw_cursor_load(dinfo, cursor->image.width, |
|
cursor->image.height, src); |
|
} |
|
|
|
if (cursor->enable) |
|
intelfbhw_cursor_show(dinfo); |
|
|
|
return 0; |
|
} |
|
|
|
static int intelfb_sync(struct fb_info *info) |
|
{ |
|
struct intelfb_info *dinfo = GET_DINFO(info); |
|
|
|
#if VERBOSE > 0 |
|
DBG_MSG("intelfb_sync\n"); |
|
#endif |
|
|
|
if (dinfo->ring_lockup) |
|
return 0; |
|
|
|
intelfbhw_do_sync(dinfo); |
|
return 0; |
|
} |
|
|
|
|