Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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/*
* intelfb
*
* Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/
* 945G/945GM/945GME/965G/965GM integrated graphics chips.
*
* Copyright © 2002, 2003 David Dawes <dawes@xfree86.org>
* 2004 Sylvain Meyer
* 2006 David Airlie
*
* This driver consists of two parts. The first part (intelfbdrv.c) provides
* the basic fbdev interfaces, is derived in part from the radeonfb and
* vesafb drivers, and is covered by the GPL. The second part (intelfbhw.c)
* provides the code to program the hardware. Most of it is derived from
* the i810/i830 XFree86 driver. The HW-specific code is covered here
* under a dual license (GPL and MIT/XFree86 license).
*
* Author: David Dawes
*
*/
/* $DHD: intelfb/intelfbdrv.c,v 1.20 2003/06/27 15:17:40 dawes Exp $ */
/*
* Changes:
* 01/2003 - Initial driver (0.1.0), no mode switching, no acceleration.
* This initial version is a basic core that works a lot like
* the vesafb driver. It must be built-in to the kernel,
* and the initial video mode must be set with vga=XXX at
* boot time. (David Dawes)
*
* 01/2003 - Version 0.2.0: Mode switching added, colormap support
* implemented, Y panning, and soft screen blanking implemented.
* No acceleration yet. (David Dawes)
*
* 01/2003 - Version 0.3.0: fbcon acceleration support added. Module
* option handling added. (David Dawes)
*
* 01/2003 - Version 0.4.0: fbcon HW cursor support added. (David Dawes)
*
* 01/2003 - Version 0.4.1: Add auto-generation of built-in modes.
* (David Dawes)
*
* 02/2003 - Version 0.4.2: Add check for active non-CRT devices, and
* mode validation checks. (David Dawes)
*
* 02/2003 - Version 0.4.3: Check when the VC is in graphics mode so that
* acceleration is disabled while an XFree86 server is running.
* (David Dawes)
*
* 02/2003 - Version 0.4.4: Monitor DPMS support. (David Dawes)
*
* 02/2003 - Version 0.4.5: Basic XFree86 + fbdev working. (David Dawes)
*
* 02/2003 - Version 0.5.0: Modify to work with the 2.5.32 kernel as well
* as 2.4.x kernels. (David Dawes)
*
* 02/2003 - Version 0.6.0: Split out HW-specifics into a separate file.
* (David Dawes)
*
* 02/2003 - Version 0.7.0: Test on 852GM/855GM. Acceleration and HW
* cursor are disabled on this platform. (David Dawes)
*
* 02/2003 - Version 0.7.1: Test on 845G. Acceleration is disabled
* on this platform. (David Dawes)
*
* 02/2003 - Version 0.7.2: Test on 830M. Acceleration and HW
* cursor are disabled on this platform. (David Dawes)
*
* 02/2003 - Version 0.7.3: Fix 8-bit modes for mobile platforms
* (David Dawes)
*
* 02/2003 - Version 0.7.4: Add checks for FB and FBCON_HAS_CFB* configured
* in the kernel, and add mode bpp verification and default
* bpp selection based on which FBCON_HAS_CFB* are configured.
* (David Dawes)
*
* 02/2003 - Version 0.7.5: Add basic package/install scripts based on the
* DRI packaging scripts. (David Dawes)
*
* 04/2003 - Version 0.7.6: Fix typo that affects builds with SMP-enabled
* kernels. (David Dawes, reported by Anupam).
*
* 06/2003 - Version 0.7.7:
* Fix Makefile.kernel build problem (Tsutomu Yasuda).
* Fix mis-placed #endif (2.4.21 kernel).
*
* 09/2004 - Version 0.9.0 - by Sylvain Meyer
* Port to linux 2.6 kernel fbdev
* Fix HW accel and HW cursor on i845G
* Use of agpgart for fb memory reservation
* Add mtrr support
*
* 10/2004 - Version 0.9.1
* Use module_param instead of old MODULE_PARM
* Some cleanup
*
* 11/2004 - Version 0.9.2
* Add vram option to reserve more memory than stolen by BIOS
* Fix intelfbhw_pan_display typo
* Add __initdata annotations
*
* 04/2008 - Version 0.9.5
* Add support for 965G/965GM. (Maik Broemme <mbroemme@plusserver.de>)
*
* 08/2008 - Version 0.9.6
* Add support for 945GME. (Phil Endecott <spam_from_intelfb@chezphil.org>)
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/screen_info.h>
#include <asm/io.h>
#include "intelfb.h"
#include "intelfbhw.h"
#include "../edid.h"
static void get_initial_mode(struct intelfb_info *dinfo);
static void update_dinfo(struct intelfb_info *dinfo,
<------><------><------> struct fb_var_screeninfo *var);
static int intelfb_open(struct fb_info *info, int user);
static int intelfb_release(struct fb_info *info, int user);
static int intelfb_check_var(struct fb_var_screeninfo *var,
<------><------><------> struct fb_info *info);
static int intelfb_set_par(struct fb_info *info);
static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
<------><------><------> unsigned blue, unsigned transp,
<------><------><------> struct fb_info *info);
static int intelfb_blank(int blank, struct fb_info *info);
static int intelfb_pan_display(struct fb_var_screeninfo *var,
<------><------><------> struct fb_info *info);
static void intelfb_fillrect(struct fb_info *info,
<------><------><------> const struct fb_fillrect *rect);
static void intelfb_copyarea(struct fb_info *info,
<------><------><------> const struct fb_copyarea *region);
static void intelfb_imageblit(struct fb_info *info,
<------><------><------> const struct fb_image *image);
static int intelfb_cursor(struct fb_info *info,
<------><------><------> struct fb_cursor *cursor);
static int intelfb_sync(struct fb_info *info);
static int intelfb_ioctl(struct fb_info *info,
<------><------><------> unsigned int cmd, unsigned long arg);
static int intelfb_pci_register(struct pci_dev *pdev,
<------><------><------><------>const struct pci_device_id *ent);
static void intelfb_pci_unregister(struct pci_dev *pdev);
static int intelfb_set_fbinfo(struct intelfb_info *dinfo);
/*
* Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the
* mobile chipsets from being registered.
*/
#if DETECT_VGA_CLASS_ONLY
#define INTELFB_CLASS_MASK ~0 << 8
#else
#define INTELFB_CLASS_MASK 0
#endif
static const struct pci_device_id intelfb_pci_table[] = {
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 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 },
<------>{ 0, }
};
/* Global data */
static int num_registered = 0;
/* fb ops */
static const struct fb_ops intel_fb_ops = {
<------>.owner = THIS_MODULE,
<------>.fb_open = intelfb_open,
<------>.fb_release = intelfb_release,
<------>.fb_check_var = intelfb_check_var,
<------>.fb_set_par = intelfb_set_par,
<------>.fb_setcolreg = intelfb_setcolreg,
<------>.fb_blank = intelfb_blank,
<------>.fb_pan_display = intelfb_pan_display,
<------>.fb_fillrect = intelfb_fillrect,
<------>.fb_copyarea = intelfb_copyarea,
<------>.fb_imageblit = intelfb_imageblit,
<------>.fb_cursor = intelfb_cursor,
<------>.fb_sync = intelfb_sync,
<------>.fb_ioctl = intelfb_ioctl
};
/* PCI driver module table */
static struct pci_driver intelfb_driver = {
<------>.name = "intelfb",
<------>.id_table = intelfb_pci_table,
<------>.probe = intelfb_pci_register,
<------>.remove = intelfb_pci_unregister,
};
/* Module description/parameters */
MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, "
<------> "Sylvain Meyer <sylvain.meyer@worldonline.fr>");
MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS
<------><------> " chipsets");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
static bool accel = 1;
static int vram = 4;
static bool hwcursor = 0;
static bool mtrr = 1;
static bool fixed = 0;
static bool noinit = 0;
static bool noregister = 0;
static bool probeonly = 0;
static bool idonly = 0;
static int bailearly = 0;
static int voffset = 48;
static char *mode = NULL;
module_param(accel, bool, S_IRUGO);
MODULE_PARM_DESC(accel, "Enable hardware acceleration");
module_param(vram, int, S_IRUGO);
MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB");
module_param(voffset, int, S_IRUGO);
MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB");
module_param(hwcursor, bool, S_IRUGO);
MODULE_PARM_DESC(hwcursor, "Enable HW cursor");
module_param(mtrr, bool, S_IRUGO);
MODULE_PARM_DESC(mtrr, "Enable MTRR support");
module_param(fixed, bool, S_IRUGO);
MODULE_PARM_DESC(fixed, "Disable mode switching");
module_param(noinit, bool, 0);
MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading");
module_param(noregister, bool, 0);
MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)");
module_param(probeonly, bool, 0);
MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)");
module_param(idonly, bool, 0);
MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)");
module_param(bailearly, int, 0);
MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)");
module_param(mode, charp, S_IRUGO);
MODULE_PARM_DESC(mode,
<------><------> "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\"");
#ifndef MODULE
#define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name)))
#define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0)
#define OPT_STRVAL(opt, name) (opt + strlen(name))
static __inline__ char * get_opt_string(const char *this_opt, const char *name)
{
<------>const char *p;
<------>int i;
<------>char *ret;
<------>p = OPT_STRVAL(this_opt, name);
<------>i = 0;
<------>while (p[i] && p[i] != ' ' && p[i] != ',')
<------><------>i++;
<------>ret = kmalloc(i + 1, GFP_KERNEL);
<------>if (ret) {
<------><------>strncpy(ret, p, i);
<------><------>ret[i] = '\0';
<------>}
<------>return ret;
}
static __inline__ int get_opt_int(const char *this_opt, const char *name,
<------><------><------><------> int *ret)
{
<------>if (!ret)
<------><------>return 0;
<------>if (!OPT_EQUAL(this_opt, name))
<------><------>return 0;
<------>*ret = OPT_INTVAL(this_opt, name);
<------>return 1;
}
static __inline__ int get_opt_bool(const char *this_opt, const char *name,
<------><------><------><------> bool *ret)
{
<------>if (!ret)
<------><------>return 0;
<------>if (OPT_EQUAL(this_opt, name)) {
<------><------>if (this_opt[strlen(name)] == '=')
<------><------><------>*ret = simple_strtoul(this_opt + strlen(name) + 1,
<------><------><------><------><------> NULL, 0);
<------><------>else
<------><------><------>*ret = 1;
<------>} else {
<------><------>if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name))
<------><------><------>*ret = 0;
<------><------>else
<------><------><------>return 0;
<------>}
<------>return 1;
}
static int __init intelfb_setup(char *options)
{
<------>char *this_opt;
<------>DBG_MSG("intelfb_setup\n");
<------>if (!options || !*options) {
<------><------>DBG_MSG("no options\n");
<------><------>return 0;
<------>} else
<------><------>DBG_MSG("options: %s\n", options);
<------>/*
<------> * These are the built-in options analogous to the module parameters
<------> * defined above.
<------> *
<------> * The syntax is:
<------> *
<------> * video=intelfb:[mode][,<param>=<val>] ...
<------> *
<------> * e.g.,
<------> *
<------> * video=intelfb:1024x768-16@75,accel=0
<------> */
<------>while ((this_opt = strsep(&options, ","))) {
<------><------>if (!*this_opt)
<------><------><------>continue;
<------><------>if (get_opt_bool(this_opt, "accel", &accel))
<------><------><------>;
<------><------>else if (get_opt_int(this_opt, "vram", &vram))
<------><------><------>;
<------><------>else if (get_opt_bool(this_opt, "hwcursor", &hwcursor))
<------><------><------>;
<------><------>else if (get_opt_bool(this_opt, "mtrr", &mtrr))
<------><------><------>;
<------><------>else if (get_opt_bool(this_opt, "fixed", &fixed))
<------><------><------>;
<------><------>else if (get_opt_bool(this_opt, "init", &noinit))
<------><------><------>noinit = !noinit;
<------><------>else if (OPT_EQUAL(this_opt, "mode="))
<------><------><------>mode = get_opt_string(this_opt, "mode=");
<------><------>else
<------><------><------>mode = this_opt;
<------>}
<------>return 0;
}
#endif
static int __init intelfb_init(void)
{
#ifndef MODULE
<------>char *option = NULL;
#endif
<------>DBG_MSG("intelfb_init\n");
<------>INF_MSG("Framebuffer driver for "
<------><------>"Intel(R) " SUPPORTED_CHIPSETS " chipsets\n");
<------>INF_MSG("Version " INTELFB_VERSION "\n");
<------>if (idonly)
<------><------>return -ENODEV;
#ifndef MODULE
<------>if (fb_get_options("intelfb", &option))
<------><------>return -ENODEV;
<------>intelfb_setup(option);
#endif
<------>return pci_register_driver(&intelfb_driver);
}
static void __exit intelfb_exit(void)
{
<------>DBG_MSG("intelfb_exit\n");
<------>pci_unregister_driver(&intelfb_driver);
}
module_init(intelfb_init);
module_exit(intelfb_exit);
/***************************************************************
* driver init / cleanup *
***************************************************************/
static void cleanup(struct intelfb_info *dinfo)
{
<------>DBG_MSG("cleanup\n");
<------>if (!dinfo)
<------><------>return;
<------>intelfbhw_disable_irq(dinfo);
<------>fb_dealloc_cmap(&dinfo->info->cmap);
<------>kfree(dinfo->info->pixmap.addr);
<------>if (dinfo->registered)
<------><------>unregister_framebuffer(dinfo->info);
<------>arch_phys_wc_del(dinfo->wc_cookie);
<------>if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) {
<------><------>agp_unbind_memory(dinfo->gtt_fb_mem);
<------><------>agp_free_memory(dinfo->gtt_fb_mem);
<------>}
<------>if (dinfo->gtt_cursor_mem) {
<------><------>agp_unbind_memory(dinfo->gtt_cursor_mem);
<------><------>agp_free_memory(dinfo->gtt_cursor_mem);
<------>}
<------>if (dinfo->gtt_ring_mem) {
<------><------>agp_unbind_memory(dinfo->gtt_ring_mem);
<------><------>agp_free_memory(dinfo->gtt_ring_mem);
<------>}
#ifdef CONFIG_FB_INTEL_I2C
<------>/* un-register I2C bus */
<------>intelfb_delete_i2c_busses(dinfo);
#endif
<------>if (dinfo->mmio_base)
<------><------>iounmap((void __iomem *)dinfo->mmio_base);
<------>if (dinfo->aperture.virtual)
<------><------>iounmap((void __iomem *)dinfo->aperture.virtual);
<------>if (dinfo->flag & INTELFB_MMIO_ACQUIRED)
<------><------>release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE);
<------>if (dinfo->flag & INTELFB_FB_ACQUIRED)
<------><------>release_mem_region(dinfo->aperture.physical,
<------><------><------><------> dinfo->aperture.size);
<------>framebuffer_release(dinfo->info);
}
#define bailout(dinfo) do { \
<------>DBG_MSG("bailout\n"); \
<------>cleanup(dinfo); \
<------>INF_MSG("Not going to register framebuffer, exiting...\n"); \
<------>return -ENODEV; \
} while (0)
static int intelfb_pci_register(struct pci_dev *pdev,
<------><------><------><------>const struct pci_device_id *ent)
{
<------>struct fb_info *info;
<------>struct intelfb_info *dinfo;
<------>int i, err, dvo;
<------>int aperture_size, stolen_size;
<------>struct agp_kern_info gtt_info;
<------>int agp_memtype;
<------>const char *s;
<------>struct agp_bridge_data *bridge;
<------>int aperture_bar = 0;
<------>int mmio_bar = 1;
<------>int offset;
<------>DBG_MSG("intelfb_pci_register\n");
<------>num_registered++;
<------>if (num_registered != 1) {
<------><------>ERR_MSG("Attempted to register %d devices "
<------><------><------>"(should be only 1).\n", num_registered);
<------><------>return -ENODEV;
<------>}
<------>info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev);
<------>if (!info)
<------><------>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, &gtt_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;
}