patch-2.4.21 linux-2.4.21/drivers/video/intel/intelfbdrv.c
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- Lines: 2220
- Date:
2003-06-13 07:51:37.000000000 -0700
- Orig file:
linux-2.4.20/drivers/video/intel/intelfbdrv.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.20/drivers/video/intel/intelfbdrv.c linux-2.4.21/drivers/video/intel/intelfbdrv.c
@@ -0,0 +1,2219 @@
+/*
+ * intelfb
+ *
+ * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G
+ * integrated graphics chips.
+ *
+ * Copyright (C) 2002, 2003 David Dawes <dawes@tungstengraphics.com>
+ *
+ * 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 1.15 2003/02/06 17:50:08 dawes Exp $ */
+/* $TG$ */
+
+/*
+ * 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)
+ *
+ * TODO:
+ * -
+ *
+ * Wish List:
+ * - Check clock limits for 845G and 830M.
+ * - Test on SMP config.
+ * - Check if any functions/data should be __devinit, etc.
+ * - See if it's feasible to get/use DDC/EDID info.
+ * - MTRR support.
+ * - See if module unloading can work.
+ * - See if driver works built-in to 2.5.32 kernel.
+ * - Check acceleration problems on 830M-855GM.
+ * - Add gtf support so that arbitrary modes can be calculated.
+ * - Port driver to latest 2.5.x fbdev interface.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/console.h>
+#include <linux/selection.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/kd.h>
+#include <linux/vt_kern.h>
+#include <linux/pagemap.h>
+#include <linux/version.h>
+
+#include <asm/io.h>
+
+#include <video/fbcon.h>
+#include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+#include <video/fbcon-cfb32.h>
+
+#include "intelfb.h"
+
+#include "builtinmodes.c"
+
+/*
+ * 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 struct pci_device_id intelfb_pci_table[] __devinitdata = {
+ { 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 },
+ { 0, }
+};
+
+/* Global data */
+static int num_registered = 0;
+
+
+/* Forward declarations */
+static int intelfb_get_fix(struct fb_fix_screeninfo *fix, int con,
+ struct fb_info *info);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+static int intelfb_get_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
+#endif
+static int intelfb_set_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
+static int intelfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info);
+static int intelfb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info);
+static int intelfb_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg, int con,
+ struct fb_info *info);
+static int intelfb_switch(int con, struct fb_info *info);
+static int intelfb_updatevar(int con, struct fb_info *info);
+static int intelfb_blank(int blank, struct fb_info *info);
+static int intelfb_getcolreg(unsigned regno, unsigned *red, unsigned *green,
+ unsigned *blue, unsigned *transp,
+ 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_pci_register(struct pci_dev *pdev,
+ const struct pci_device_id *ent);
+static void __devexit intelfb_pci_unregister(struct pci_dev *pdev);
+static int __devinit intelfb_set_fbinfo(struct intelfb_info *dinfo);
+static void intelfb_set_dispsw(struct intelfb_info *dinfo,
+ struct display *disp);
+static void mode_to_var(const struct fb_videomode *mode,
+ struct fb_var_screeninfo *var, u32 bpp);
+static int intelfb_set_mode(struct intelfb_info *dinfo,
+ struct fb_var_screeninfo *var,
+ struct display *disp, int blank);
+static void intelfb_do_install_cmap(int con, struct fb_info *info);
+static void update_dinfo(struct intelfb_info *dinfo,
+ struct fb_var_screeninfo *var, struct display *disp);
+static void intelfb_flashcursor(unsigned long ptr);
+static void fbcon_intelfb_setup(struct display *p);
+static void fbcon_intelfb_bmove(struct display *p, int sy, int sx, int dy,
+ int dx, int height, int width);
+static void fbcon_intelfb_clear(struct vc_data *conp, struct display *p,
+ int sy, int sx, int height, int width);
+static void fbcon_intelfb_putc(struct vc_data *conp, struct display *p,
+ int c, int yy, int xx);
+static void fbcon_intelfb_putcs(struct vc_data *conp, struct display *p,
+ const unsigned short *s, int count,
+ int yy, int xx);
+static void fbcon_intelfb_revc(struct display *p, int xx, int yy);
+static void fbcon_intelfb_clear_margins(struct vc_data *conp,
+ struct display *p, int bottom_only);
+static void fbcon_intelfb_cursor(struct display *disp, int mode, int x, int y);
+
+/* fb ops */
+static struct fb_ops intel_fb_ops = {
+ .owner = THIS_MODULE,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+ .fb_get_fix = intelfb_get_fix,
+ .fb_get_var = intelfb_get_var,
+#else
+ .fb_blank = intelfb_blank,
+ .fb_setcolreg = intelfb_setcolreg,
+#endif
+ .fb_set_var = intelfb_set_var,
+ .fb_get_cmap = intelfb_get_cmap,
+ .fb_set_cmap = intelfb_set_cmap,
+ .fb_pan_display = intelfbhw_pan_display,
+ .fb_ioctl = intelfb_ioctl
+};
+
+/* PCI driver module table */
+static struct pci_driver intelfb_driver = {
+ .name = INTELFB_MODULE_NAME,
+ .id_table = intelfb_pci_table,
+ .probe = intelfb_pci_register,
+ .remove = __devexit_p(intelfb_pci_unregister)
+};
+
+/* fbcon acceleration */
+static struct display_switch fbcon_intelfb = {
+ .setup = fbcon_intelfb_setup,
+ .bmove = fbcon_intelfb_bmove,
+ .clear = fbcon_intelfb_clear,
+ .putc = fbcon_intelfb_putc,
+ .putcs = fbcon_intelfb_putcs,
+ .revc = fbcon_intelfb_revc,
+ .cursor = fbcon_intelfb_cursor,
+ .clear_margins = fbcon_intelfb_clear_margins,
+ .fontwidthmask = FONTWIDTHRANGE(4, 16)
+};
+
+/* Module description/parameters */
+MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>");
+MODULE_DESCRIPTION(
+ "Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS " chipsets");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
+
+INTELFB_INT_PARAM(accel, 1, "Enable console acceleration");
+INTELFB_INT_PARAM(hwcursor, 1, "Enable HW cursor");
+INTELFB_INT_PARAM(fixed, 0, "Disable mode switching");
+INTELFB_INT_PARAM(noinit, 0, "Don't initialise graphics mode when loading");
+INTELFB_INT_PARAM(noregister, 0, "Don't register, just probe and exit (debug)");
+INTELFB_INT_PARAM(probeonly, 0, "Do a minimal probe (debug)");
+INTELFB_INT_PARAM(idonly, 0,
+ "Just identify without doing anything else (debug)");
+INTELFB_INT_PARAM(bailearly, 0, "Bail out early, depending on value (debug)");
+INTELFB_STR_PARAM(mode, NULL,
+ "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\"");
+INTELFB_STR_PARAM(font, NULL, "Specify which built-in font to use");
+
+
+/* module load/unload entry points */
+int __init
+intelfb_init(void)
+{
+ DBG_MSG("intelfb_init\n");
+
+ INF_MSG("Framebuffer driver for "
+ "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n");
+ INF_MSG("Version " INTELFB_VERSION
+ ", written by David Dawes <dawes@tungstengraphics.com>\n");
+
+ if (idonly)
+ return -ENODEV;
+
+ return pci_module_init(&intelfb_driver);
+}
+
+void __exit
+intelfb_exit(void)
+{
+ DBG_MSG("intelfb_exit\n");
+ pci_unregister_driver(&intelfb_driver);
+}
+
+#ifndef MODULE
+#define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name)))
+#define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name), 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_bool(const char *this_opt, const char *name, int *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;
+}
+
+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_bool(this_opt, "hwcursor", &hwcursor))
+ ;
+ 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, "font="))
+ font = get_opt_string(this_opt, "font=");
+ else if (OPT_EQUAL(this_opt, "mode="))
+ mode = get_opt_string(this_opt, "mode=");
+ else
+ mode = this_opt;
+ }
+
+ return 0;
+}
+#endif
+
+#ifdef MODULE
+module_init(intelfb_init);
+module_exit(intelfb_exit);
+#endif
+
+static void
+cleanup(struct intelfb_info *dinfo)
+{
+ DBG_MSG("cleanup\n");
+
+ if (!dinfo)
+ return;
+
+ if (dinfo->registered)
+ unregister_framebuffer(&(dinfo->info));
+
+ if (&dinfo->cursor.timer)
+ del_timer_sync(&dinfo->cursor.timer);
+
+#if USE_SYNC_PAGE
+ if (dinfo->syncpage_virt) {
+ struct page *pg = virt_to_page((void *)dinfo->syncpage_virt);
+ if (pg) {
+ put_page(pg);
+ UnlockPage(pg);
+ free_page(dinfo->syncpage_virt);
+ }
+ }
+#endif
+
+ if (dinfo->cursor_base)
+ iounmap((void *)dinfo->cursor_base);
+ if (dinfo->ring_base)
+ iounmap((void *)dinfo->ring_base);
+ if (dinfo->fb_base)
+ iounmap((void *)dinfo->fb_base);
+ if (dinfo->mmio_base)
+ iounmap((void *)dinfo->mmio_base);
+ if (dinfo->mmio_base_phys && dinfo->pdev)
+ release_mem_region(dinfo->mmio_base_phys,
+ pci_resource_len(dinfo->pdev, 1));
+ if (dinfo->fb_base_phys && dinfo->pdev)
+ release_mem_region(dinfo->fb_base_phys,
+ pci_resource_len(dinfo->pdev, 0));
+ kfree(dinfo);
+}
+
+#define bailout(dinfo) do { \
+ DBG_MSG("bailout\n"); \
+ cleanup(dinfo); \
+ INF_MSG("Not going to register framebuffer, exiting...\n"); \
+ return -ENODEV; \
+} while (0)
+
+
+int
+intelfb_var_to_depth(const struct fb_var_screeninfo *var)
+{
+#if 0
+ DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n",
+ var->bits_per_pixel, var->green.length);
+#endif
+
+ 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 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->xres_virtual = var->xres;
+#if ALLOCATE_FOR_PANNING
+ /* Allow use of half of the video ram for panning */
+ var->yres_virtual =
+ dinfo->initial_video_ram / 2 / dinfo->initial_pitch;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+#else
+ var->yres_virtual = var->yres;
+#endif
+ 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_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct intelfb_info *dinfo;
+ int i, j, err;
+ const char *s;
+
+ 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;
+ }
+
+ if (!(dinfo = kmalloc(sizeof(struct intelfb_info), GFP_KERNEL))) {
+ ERR_MSG("Could not allocate memory for intelfb_info.\n");
+ return -ENODEV;
+ }
+
+ memset(dinfo, 0, sizeof(*dinfo));
+ dinfo->pdev = pdev;
+
+ /* Enable device. */
+ if ((err = pci_enable_device(pdev))) {
+ ERR_MSG("Cannot enable device.\n");
+ cleanup(dinfo);
+ return -ENODEV;
+ }
+
+ /* Set base addresses. */
+ dinfo->fb_base_phys = pci_resource_start(pdev, 0);
+ dinfo->mmio_base_phys = pci_resource_start(pdev, 1);
+
+ DBG_MSG("fb region: 0x%lx/0x%lx, MMIO region: 0x%lx/0x%lx\n",
+ pci_resource_start(pdev, 0), pci_resource_len(pdev, 0),
+ pci_resource_start(pdev, 1), pci_resource_len(pdev, 1));
+
+ /* Reserve the fb and MMIO regions */
+ if (!request_mem_region(dinfo->fb_base_phys, pci_resource_len(pdev, 0),
+ INTELFB_MODULE_NAME)) {
+ ERR_MSG("Cannot reserve FB region.\n");
+ cleanup(dinfo);
+ return -ENODEV;
+ }
+ if (!request_mem_region(dinfo->mmio_base_phys,
+ pci_resource_len(pdev, 1),
+ INTELFB_MODULE_NAME)) {
+ ERR_MSG("Cannot reserve MMIO region.\n");
+ cleanup(dinfo);
+ return -ENODEV;
+ }
+
+ /* Map the MMIO region. */
+ dinfo->mmio_base = (u32)ioremap(dinfo->mmio_base_phys, INTEL_REG_SIZE);
+ if (!dinfo->mmio_base) {
+ ERR_MSG("Cannot map MMIO.\n");
+ cleanup(dinfo);
+ return -ENODEV;
+ }
+
+ /* Get the chipset info. */
+ dinfo->pci_chipset = pdev->device;
+
+ if (intelfbhw_get_chipset(pdev, &dinfo->name, &dinfo->chipset,
+ &dinfo->mobile)) {
+ cleanup(dinfo);
+ return -ENODEV;
+ }
+
+ if (intelfbhw_get_memory(pdev, &dinfo->aperture_size,
+ &dinfo->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(dinfo->aperture_size),
+ BtoKB(dinfo->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;
+ }
+
+ /*
+ * For now, set the video ram size to the stolen size rounded
+ * down to a page multiple. This means the agpgart driver doesn't
+ * need to get involved.
+ */
+ dinfo->video_ram = ROUND_DOWN_TO_PAGE(dinfo->stolen_size);
+
+ /* Allocate space for the ring buffer and HW cursor. */
+ if (dinfo->accel) {
+ dinfo->ring_size = RINGBUFFER_SIZE;
+ dinfo->video_ram -= dinfo->ring_size;
+ dinfo->ring_base_phys = dinfo->fb_base_phys + dinfo->video_ram;
+ dinfo->ring_tail_mask = dinfo->ring_size - 1;
+ }
+ if (dinfo->hwcursor && !dinfo->mobile) {
+ dinfo->cursor_size = HW_CURSOR_SIZE;
+ dinfo->video_ram -= dinfo->cursor_size;
+ dinfo->cursor_offset = dinfo->video_ram;
+ dinfo->cursor_base_phys = dinfo->fb_base_phys +
+ dinfo->cursor_offset;
+ }
+
+ /* Framebuffer starts at offset 0. */
+ dinfo->fb_offset = 0;
+ dinfo->video_ram -= dinfo->fb_offset;
+
+ /* Map the FB region. Only map the memory used as video ram. */
+ dinfo->fb_base = (u32)ioremap(dinfo->fb_base_phys + dinfo->fb_offset,
+ dinfo->video_ram);
+ if (!dinfo->fb_base) {
+ ERR_MSG("Cannot map framebuffer.\n");
+ cleanup(dinfo);
+ return -ENODEV;
+ }
+
+ if (dinfo->accel) {
+ /* Map the ring buffer. */
+ dinfo->ring_base = (u32)ioremap(dinfo->ring_base_phys,
+ dinfo->ring_size);
+ if (!dinfo->ring_base) {
+ dinfo->accel = 0;
+ WRN_MSG("Cannot map ring buffer: "
+ "acceleration disabled.\n");
+ }
+ }
+
+ if (dinfo->hwcursor && !dinfo->mobile) {
+ /* Map the HW cursor buffer. */
+ dinfo->cursor_base = (u32)ioremap(dinfo->cursor_base_phys,
+ dinfo->cursor_size);
+ if (!dinfo->cursor_base) {
+ WRN_MSG("Cannot map the HW cursor space: "
+ "HW cursor disabled.\n");
+ dinfo->hwcursor = 0;
+ }
+ }
+
+ /*
+ * For mobile platforms, a physical page address is needed for the
+ * HW cursor. Allocate it here and insert it into the GTT.
+ * If/when this driver is modified to be aware of the agpgart
+ * driver, it can be used to obtain/insert the page.
+ */
+ if (dinfo->hwcursor && dinfo->mobile) {
+#if !MOBILE_HW_CURSOR
+ dinfo->hwcursor = 0;
+ INF_MSG("HW cursor is not supported for mobile platforms.\n");
+#else
+ struct page *pg;
+
+ /*
+ * Allocate a page of physical memory for the graphics
+ * engine to write to for synchronisation purposes.
+ */
+ pg = alloc_page(GFP_KERNEL);
+ if (!pg) {
+ WRN_MSG("Cannot allocate a page for the HW cursor. "
+ "Disabling the HW cursor.");
+ dinfo->hwcursor = 0;
+ } else {
+ get_page(pg);
+ LockPage(pg);
+ dinfo->cursor_page_virt = (u32)page_address(pg);
+ dinfo->cursor_base_real =
+ virt_to_phys(page_address(pg));
+
+ /*
+ * XXX Add code to insert GTT entry and map the
+ * appropriate part of the aperture as
+ * dinfo->cursor_base.
+ */
+ }
+#endif
+ }
+ DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%x)\n",
+ dinfo->fb_base_phys, dinfo->fb_offset, dinfo->video_ram,
+ dinfo->fb_base);
+ DBG_MSG("MMIO: 0x%x/0x%x (0x%x)\n",
+ dinfo->mmio_base_phys, INTEL_REG_SIZE, dinfo->mmio_base);
+ DBG_MSG("ring buffer: 0x%x/0x%x (0x%x)\n",
+ dinfo->ring_base_phys, dinfo->ring_size, dinfo->ring_base);
+ DBG_MSG("HW cursor: 0x%x/0x%x (0x%x) (offset 0x%x) (phys 0x%x)\n",
+ dinfo->cursor_base_phys, dinfo->cursor_size,
+ dinfo->cursor_base, dinfo->cursor_offset,
+ dinfo->cursor_base_real);
+
+ DBG_MSG("options: accel = %d, fixed = %d, noinit = %d\n",
+ accel, fixed, noinit);
+ DBG_MSG("options: mode = \"%s\", font = \"%s\"\n",
+ mode ? mode : "", font ? font : "");
+
+ if (probeonly)
+ bailout(dinfo);
+
+ dinfo->fixed_mode = fixed;
+
+ /*
+ * Check if the LVDS port or any DVO ports are enabled. If so,
+ * don't allow mode switching.
+ */
+ if ((s = intelfbhw_check_non_crt(dinfo))) {
+ WRN_MSG("Non-CRT device is enabled (%s). "
+ "Disabling mode switching.\n", s);
+ dinfo->fixed_mode = 1;
+ }
+
+ if (bailearly == 1)
+ bailout(dinfo);
+
+ if (dinfo->fixed_mode && 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 (ORIG_VIDEO_ISVGA == VIDEO_TYPE_VLFB)
+ get_initial_mode(dinfo);
+
+ if (bailearly == 3)
+ bailout(dinfo);
+
+#if 0
+ if (dinfo->fixed_mode) {
+ /*
+ * XXX Check video ram amounts and remap if the region already
+ * mapped is too small because of ring/cursor allocations.
+ */
+ update_dinfo(dinfo, &dinfo->initial_var, NULL);
+ }
+#endif
+
+ /* currcon will be set by the first switch. */
+ dinfo->currcon = -1;
+ dinfo->vc_mode = KD_TEXT;
+
+#if USE_SYNC_PAGE
+ if (dinfo->accel) {
+ struct page *pg;
+
+ /*
+ * Allocate a page of physical memory for the graphics
+ * engine to write to for synchronisation purposes.
+ */
+ pg = alloc_page(GFP_KERNEL);
+ if (!pg) {
+ WRN_MSG("Cannot allocate a page for 2D accel. "
+ "Disabling acceleration.");
+ dinfo->accel = 0;
+ } else {
+ get_page(pg);
+ LockPage(pg);
+ dinfo->syncpage_virt = (u32)page_address(pg);
+ dinfo->syncpage_phys = virt_to_phys(page_address(pg));
+ /* Write zero to the first dword */
+ writel(0, dinfo->syncpage_virt);
+ DBG_MSG("2D sync page: 0x%x (0x%x)\n",
+ dinfo->syncpage_phys, dinfo->syncpage_virt);
+ }
+ }
+#endif
+
+ if (bailearly == 4)
+ bailout(dinfo);
+
+
+ if (intelfb_set_fbinfo(dinfo)) {
+ cleanup(dinfo);
+ return -ENODEV;
+ }
+
+ if (bailearly == 5)
+ bailout(dinfo);
+
+ for (i = 0; i < 16; i++) {
+ j = color_table[i];
+ dinfo->palette[i].red = default_red[j];
+ dinfo->palette[i].green = default_grn[j];
+ dinfo->palette[i].blue = default_blu[j];
+ }
+
+ 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);
+
+#if TEST_MODE_TO_HW
+ {
+ struct intelfb_hwstate hw;
+ struct fb_var_screeninfo var;
+ int i;
+
+ for (i = 0; i < num_modes; i++) {
+ mode_to_var(&modedb[i], &var, 8);
+ intelfbhw_read_hw_state(dinfo, &hw, 0);
+ if (intelfbhw_mode_to_hw(dinfo, &hw, &var)) {
+ DGB_MSG("Failed to set hw for mode %dx%d\n",
+ var.xres, var.yres);
+ } else {
+ DGB_MSG("HW state for mode %dx%d\n",
+ var.xres, var.yres);
+ intelfbhw_print_hw_state(dinfo, &hw);
+ }
+ }
+ }
+#endif
+
+ /* Cursor initialisation */
+ if (dinfo->hwcursor) {
+ init_timer(&dinfo->cursor.timer);
+ dinfo->cursor.timer.function = intelfb_flashcursor;
+ dinfo->cursor.timer.data = (unsigned long)dinfo;
+ dinfo->cursor.state = CM_ERASE;
+ spin_lock_init(&dinfo->DAClock);
+ }
+
+ if (bailearly == 19)
+ 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;
+
+ return 0;
+}
+
+static void __devexit
+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);
+
+ pci_set_drvdata(pdev, NULL);
+}
+
+/*
+ * A simplified version of fb_find_mode. The latter doesn't seem to work
+ * too well -- haven't figured out why yet.
+ */
+static int
+intelfb_find_mode(struct fb_var_screeninfo *var,
+ struct fb_info *info, const char *mode_option,
+ const struct fb_videomode *db, unsigned int dbsize,
+ const struct fb_videomode *default_mode,
+ unsigned int default_bpp)
+{
+ int i;
+ char mname[20] = "", tmp[20] = "", *p, *q;
+ unsigned int bpp = 0;
+
+ DBG_MSG("intelfb_find_mode\n");
+
+ /* Set up defaults */
+ if (!db) {
+ db = modedb;
+ dbsize = sizeof(modedb) / sizeof(*modedb);
+ }
+
+ if (!default_bpp)
+#if defined(FBCON_HAS_CFB8)
+ default_bpp = 8;
+#elif defined(FBCON_HAS_CFB16)
+ default_bpp = 16;
+#elif defined(FBCON_HAS_CFB32)
+ default_bpp = 32;
+#endif
+
+ var->activate = FB_ACTIVATE_TEST;
+ if (mode_option && *mode_option) {
+ if (strlen(mode_option) < sizeof(tmp) - 1) {
+ strcat(tmp, mode_option);
+ q = tmp;
+ p = strsep(&q, "-");
+ strcat(mname, p);
+ if (q) {
+ p = strsep(&q, "@");
+ bpp = simple_strtoul(p, NULL, 10);
+ if (q) {
+ strcat(mname, "@");
+ strcat(mname, q);
+ }
+ }
+ }
+ if (!bpp)
+ bpp = default_bpp;
+ DBG_MSG("Mode is %s, bpp %d\n", mname, bpp);
+ }
+ if (*mname) {
+ for (i = 0; i < dbsize; i++) {
+ if (!strncmp(db[i].name, mname, strlen(mname))) {
+ mode_to_var(&db[i], var, bpp);
+ if (!intelfb_set_var(var, -1, info))
+ return 1;
+ }
+ }
+ }
+
+ if (!default_mode)
+ return 0;
+
+ mode_to_var(default_mode, var, default_bpp);
+ if (!intelfb_set_var(var, -1, info))
+ return 3;
+
+ for (i = 0; i < dbsize; i++) {
+ mode_to_var(&db[i], var, default_bpp);
+ if (!intelfb_set_var(var, -1, info))
+ return 4;
+ }
+
+ return 0;
+}
+
+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 intialisation functions */
+
+static int __devinit
+intelfb_init_disp_var(struct intelfb_info *dinfo)
+{
+ int msrc = 0;
+
+ DBG_MSG("intelfb_init_disp_var\n");
+
+ if (dinfo->fixed_mode) {
+ dinfo->disp.var = dinfo->initial_var;
+ msrc = 5;
+ } else {
+ if (mode) {
+ msrc = intelfb_find_mode(&dinfo->disp.var,
+ &dinfo->info, mode,
+ modedb, num_modes, NULL, 0);
+ if (msrc)
+ msrc |= 8;
+ }
+ if (!msrc) {
+ msrc = intelfb_find_mode(&dinfo->disp.var,
+ &dinfo->info, PREFERRED_MODE,
+ modedb, num_modes,
+ &modedb[DFLT_MODE], 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", dinfo->disp.var.xres,
+ dinfo->disp.var.yres, intelfb_var_to_depth(&dinfo->disp.var),
+ var_to_refresh(&dinfo->disp.var));
+
+ DBG_MSG("Initial video mode is from %d.\n", msrc);
+
+ if (dinfo->accel)
+ dinfo->disp.var.accel_flags |= FB_ACCELF_TEXT;
+ else
+ dinfo->disp.var.accel_flags &= ~FB_ACCELF_TEXT;
+
+ return 0;
+}
+
+static void
+intelfb_set_dispsw(struct intelfb_info *dinfo, struct display *disp)
+{
+ DBG_MSG("intelfb_set_dispsw: (bpp is %d)\n", disp->var.bits_per_pixel);
+
+ disp->dispsw_data = NULL;
+ disp->dispsw = NULL;
+
+ switch (disp->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ disp->dispsw_data = &dinfo->con_cmap.cfb16;
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ disp->dispsw_data = &dinfo->con_cmap.cfb32;
+ break;
+#endif
+ default:
+ WRN_MSG("Setting fbcon_dummy renderer (bpp is %d).\n",
+ disp->var.bits_per_pixel);
+ disp->dispsw = &fbcon_dummy;
+ }
+ /* For all supported bpp. */
+ if (!disp->dispsw)
+ disp->dispsw = &fbcon_intelfb;
+}
+
+static int __devinit
+intelfb_init_disp(struct intelfb_info *dinfo)
+{
+ struct fb_info *info;
+ struct display *disp;
+
+ DBG_MSG("intelfb_init_disp\n");
+
+ info = &dinfo->info;
+ disp = &dinfo->disp;
+
+ if (intelfb_init_disp_var(dinfo))
+ return 1;
+
+ info->disp = disp;
+
+ update_dinfo(dinfo, &disp->var, disp);
+
+ intelfb_set_dispsw(dinfo, disp);
+
+ dinfo->currcon_display = disp;
+
+ return 0;
+}
+
+static int __devinit
+intelfb_set_fbinfo(struct intelfb_info *dinfo)
+{
+ struct fb_info *info;
+
+ DBG_MSG("intelfb_set_fbinfo\n");
+
+ info = &dinfo->info;
+
+ strcpy(info->modename, dinfo->name);
+ info->node = NODEV;
+ info->flags = FBINFO_FLAG_DEFAULT;
+ info->fbops = &intel_fb_ops;
+ info->display_fg = NULL;
+ info->changevar = NULL;
+ info->switch_con = intelfb_switch;
+ info->updatevar = intelfb_updatevar;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+ info->blank = intelfbhw_do_blank;
+#endif
+
+ if (intelfb_init_disp(dinfo))
+ return 1;
+ return 0;
+}
+
+/* Update dinfo to match the active video mode. */
+static void
+update_dinfo(struct intelfb_info *dinfo, struct fb_var_screeninfo *var,
+ struct display *disp)
+{
+ 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;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+ intelfb_get_fix(&dinfo->info.fix, dinfo->currcon, &dinfo->info);
+#endif
+
+ switch (dinfo->bpp) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ dinfo->visual = FB_VISUAL_PSEUDOCOLOR;
+ dinfo->pitch = disp->var.xres_virtual;
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ dinfo->visual = FB_VISUAL_TRUECOLOR;
+ dinfo->pitch = disp->var.xres_virtual * 2;
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ dinfo->visual = FB_VISUAL_TRUECOLOR;
+ dinfo->pitch = disp->var.xres_virtual * 4;
+ break;
+#endif
+ }
+
+ /* Make sure the line length is a aligned correctly. */
+ dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
+
+ if (dinfo->fixed_mode)
+ dinfo->pitch = dinfo->initial_pitch;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+ disp->screen_base = (char *)dinfo->fb_base;
+ disp->visual = dinfo->visual;
+ disp->line_length = dinfo->pitch;
+ disp->type = FB_TYPE_PACKED_PIXELS;
+ disp->type_aux = 0;
+ disp->ypanstep = 1;
+ disp->ywrapstep = 0;
+#else
+ dinfo->info.screen_base = (char *)dinfo->fb_base;
+ dinfo->info.fix.line_length = dinfo->pitch;
+ dinfo->info.fix.visual = dinfo->visual;
+#endif
+ disp->can_soft_blank = 1;
+ disp->inverse = 0;
+ DBG_MSG("disp->scrollmode is 0x%x\n", disp->scrollmode);
+ if (disp->var.yres_virtual == disp->var.yres &&
+ !(disp->var.accel_flags & FB_ACCELF_TEXT)) {
+ /* No space for panning. */
+ disp->scrollmode = SCROLL_YREDRAW;
+ } else {
+ disp->scrollmode = __SCROLL_YMOVE;
+ }
+}
+
+/* fbops functions */
+
+static int
+intelfb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
+{
+ struct intelfb_info *dinfo = GET_DINFO(info);
+ struct display *disp;
+
+ DBG_MSG("intelfb_get_fix\n");
+
+ disp = GET_DISP(info, con);
+
+ memset(fix, 0, sizeof(*fix));
+ strcpy(fix->id, dinfo->name);
+ fix->smem_start = dinfo->fb_base_phys;
+ fix->smem_len = dinfo->video_ram;
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->type_aux = 0;
+ fix->visual = dinfo->visual;
+ fix->xpanstep = 8;
+ fix->ypanstep = 1;
+ fix->ywrapstep = 0;
+ fix->line_length = dinfo->pitch;
+ fix->mmio_start = dinfo->mmio_base_phys;
+ fix->mmio_len = INTEL_REG_SIZE;
+ fix->accel = FB_ACCEL_NONE;
+ return 0;
+}
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+static int
+intelfb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+ struct intelfb_info *dinfo = GET_DINFO(info);
+
+ DBG_MSG("intelfb_get_var\n");
+
+ if (con == -1)
+ *var = dinfo->disp.var;
+ else
+ *var = fb_display[con].var;
+
+ return 0;
+}
+#endif
+
+static int
+intelfb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+ struct display *disp;
+ int change_var = 0;
+ struct fb_var_screeninfo v;
+ struct intelfb_info *dinfo;
+ int ret;
+ static int first = 1;
+
+ DBG_MSG("intelfb_set_var: con is %d, accel_flags is %d\n",
+ con, var->accel_flags);
+
+ dinfo = GET_DINFO(info);
+ disp = GET_DISP(info, con);
+
+ if (intelfbhw_validate_mode(dinfo, con, var) != 0)
+ return -EINVAL;
+
+ memcpy(&v, var, sizeof(v));
+
+ /* Check for a supported bpp. */
+ if (v.bits_per_pixel <= 8) {
+#ifdef FBCON_HAS_CFB8
+ v.bits_per_pixel = 8;
+#else
+ return -EINVAL;
+#endif
+ } else if (v.bits_per_pixel <= 16) {
+#ifdef FBCON_HAS_CFB16
+ if (v.bits_per_pixel == 16)
+ v.green.length = 6;
+ v.bits_per_pixel = 16;
+#else
+ return -EINVAL;
+#endif
+ } else if (v.bits_per_pixel <= 32) {
+#ifdef FBCON_HAS_CFB32
+ v.bits_per_pixel = 32;
+#else
+ return -EINVAL;
+#endif
+ } else
+ return -EINVAL;
+
+ if (con < 0) {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+ info->var = *var;
+#endif
+ return 0;
+ }
+
+
+ change_var = ((disp->var.xres != var->xres) ||
+ (disp->var.yres != var->yres) ||
+ (disp->var.xres_virtual != var->xres_virtual) ||
+ (disp->var.yres_virtual != var->yres_virtual) ||
+ (disp->var.bits_per_pixel != var->bits_per_pixel) ||
+ memcmp(&disp->var.red, &var->red, sizeof(var->red)) ||
+ memcmp(&disp->var.green, &var->green,
+ sizeof(var->green)) ||
+ memcmp(&disp->var.blue, &var->blue, sizeof(var->blue)));
+
+ if (dinfo->fixed_mode &&
+ (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;
+ }
+
+ if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_NOW)
+ return 0;
+
+ switch (intelfb_var_to_depth(&v)) {
+#ifdef FBCON_HAS_CFB8
+ 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;
+#endif
+#ifdef FBCON_HAS_CFB16
+ 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;
+#endif
+#ifdef FBCON_HAS_CFB32
+ 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;
+#endif
+ }
+
+ if (v.xoffset < 0)
+ v.xoffset = 0;
+ if (v.yoffset < 0)
+ v.yoffset = 0;
+
+ 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;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
+ info->var = v;
+#endif
+
+ memcpy(&disp->var, &v, sizeof(v));
+
+ update_dinfo(dinfo, &v, disp);
+
+ intelfb_set_dispsw(dinfo, disp);
+
+ if (change_var) {
+ if (info && info->changevar)
+ info->changevar(con);
+ }
+
+ intelfb_blank(1, info);
+
+#if 0
+ if (dinfo->hwcursor)
+ intelfbhw_cursor_hide(dinfo);
+#endif
+
+ intelfbhw_2d_stop(dinfo);
+
+ if (!dinfo->fixed_mode) {
+ mdelay(100);
+ if ((ret = intelfb_set_mode(dinfo, &v, disp, 1)))
+ return ret;
+
+ mdelay(100);
+ }
+
+ if (dinfo->vc_mode == KD_TEXT) {
+ intelfb_do_install_cmap(con, info);
+
+ if (dinfo->hwcursor) {
+ del_timer(&dinfo->cursor.timer);
+ dinfo->cursor.state = CM_ERASE;
+ if (disp->conp) {
+ intelfbhw_cursor_init(dinfo);
+ intelfbhw_cursor_load(dinfo, disp);
+ dinfo->cursor.redraw = 1;
+ }
+ }
+
+ mdelay(100);
+
+ intelfbhw_2d_start(dinfo);
+#if 0
+ if (dinfo->hwcursor)
+ intelfbhw_cursor_show(dinfo);
+#endif
+
+ if (v.yoffset != 0)
+ intelfbhw_pan_display(&v, con, info);
+ } else {
+ dinfo->cursor.enabled = 0;
+ }
+
+ intelfb_blank(0, info);
+
+ return 0;
+}
+
+static int
+intelfb_get_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
+{
+ struct intelfb_info *dinfo = GET_DINFO(info);
+ struct display *disp = GET_DISP(info, con);
+
+ DBG_MSG("intelfb_get_cmap: con = %d, bpp = %d\n", con,
+ disp->var.bits_per_pixel);
+
+ if (con == dinfo->currcon)
+ return fb_get_cmap(cmap, kspc, intelfb_getcolreg, info);
+ else if (disp->cmap.len)
+ fb_copy_cmap(&disp->cmap, cmap, kspc ? 0 : 2);
+ else {
+ int cmap_len = (disp->var.bits_per_pixel > 8) ? 16 : 256;
+ fb_copy_cmap(fb_default_cmap(cmap_len), cmap, kspc ? 0 : 2);
+ }
+ return 0;
+}
+
+static int
+intelfb_set_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
+{
+ struct intelfb_info *dinfo = GET_DINFO(info);
+ struct display *disp = GET_DISP(info, con);
+ unsigned int cmap_len;
+ int err;
+
+ DBG_MSG("intelfb_set_cmap: con = %d, bpp = %d\n", con,
+ disp->var.bits_per_pixel);
+
+ cmap_len = (disp->var.bits_per_pixel > 8) ? 16 : 256;
+ if (!disp->cmap.len) {
+ err = fb_alloc_cmap(&disp->cmap, cmap_len, 0);
+ if (err)
+ return err;
+ }
+ if (con == dinfo->currcon)
+ return FB_SET_CMAP(cmap, kspc, intelfb_setcolreg, info);
+ else
+ fb_copy_cmap(cmap, &disp->cmap, kspc ? 0 : 1);
+
+ return 0;
+}
+
+/* When/if we have our own ioctls. */
+static int
+intelfb_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
+ unsigned long arg, int con, struct fb_info *info)
+{
+ DBG_MSG("intelfb_ioctl\n");
+ return -EINVAL;
+}
+
+static int
+intelfb_switch(int con, struct fb_info *info)
+{
+ struct intelfb_info *dinfo = GET_DINFO(info);
+ struct display *disp;
+ struct fb_cmap *cmap;
+ int switchmode = 0;
+
+ DBG_MSG("intelfb_switch: con = %d, currcon = %d\n",
+ con, dinfo->currcon);
+
+ disp = GET_DISP(info, con);
+ if (dinfo->currcon >= 0) {
+ cmap = &dinfo->currcon_display->cmap;
+ if (cmap->len)
+ fb_get_cmap(cmap, 1, intelfb_getcolreg, info);
+ }
+
+ switchmode = (con != dinfo->currcon);
+
+ dinfo->currcon = con;
+ dinfo->vc_mode = con >= 0 ? vt_cons[con]->vc_mode : KD_TEXT;
+ dinfo->currcon_display = disp;
+ disp->var.activate = FB_ACTIVATE_NOW;
+
+ if (switchmode) {
+ intelfb_set_var(&disp->var, con, info);
+ intelfb_do_install_cmap(con, info);
+ }
+
+ return 0;
+}
+
+/* Called whenever there's panning. */
+static int
+intelfb_updatevar(int con, struct fb_info *info)
+{
+ struct display *disp = GET_DISP(info, con);
+
+ DBG_MSG("intelfb_updatevar\n");
+
+ if (con < 0)
+ return -EINVAL;
+ else
+ return intelfbhw_pan_display(&disp->var, con, info);
+}
+
+static int
+intelfb_blank(int blank, struct fb_info *info)
+{
+ intelfbhw_do_blank(blank, info);
+ return 0;
+}
+
+static int
+intelfb_getcolreg(unsigned regno, unsigned *red, unsigned *green,
+ unsigned *blue, unsigned *transp, struct fb_info *info)
+{
+ struct intelfb_info *dinfo = GET_DINFO(info);
+
+#if 0
+ DBG_MSG("intelfb_getcolreg\n");
+#endif
+
+ if (regno > 255)
+ return 1;
+
+ *red = (dinfo->palette[regno].red<<8) | dinfo->palette[regno].red;
+ *green = (dinfo->palette[regno].green<<8) | dinfo->palette[regno].green;
+ *blue = (dinfo->palette[regno].blue<<8) | dinfo->palette[regno].blue;
+ *transp = 0;
+
+ return 0;
+}
+
+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 1
+ DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth);
+#endif
+
+ if ((dinfo->depth > 8 && regno > 16) || regno > 255)
+ return 1;
+
+ switch (dinfo->depth) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ {
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+
+ dinfo->palette[regno].red = red;
+ dinfo->palette[regno].green = green;
+ dinfo->palette[regno].blue = blue;
+
+ intelfbhw_setcolreg(dinfo, regno, red, green, blue,
+ transp);
+ }
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 15:
+ dinfo->con_cmap.cfb16[regno] = ((red & 0xf800) >> 1) |
+ ((green & 0xf800) >> 6) |
+ ((blue & 0xf800) >> 11);
+ break;
+ case 16:
+ dinfo->con_cmap.cfb16[regno] = (red & 0xf800) |
+ ((green & 0xfc00) >> 5) |
+ ((blue & 0xf800) >> 11);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 24:
+ dinfo->con_cmap.cfb32[regno] = ((red & 0xff00) << 8) |
+ (green & 0xff00) |
+ ((blue & 0xff00) >> 8);
+ break;
+#endif
+ }
+ return 0;
+}
+
+/* Convert a mode to a var, also making the bpp a supported value. */
+static void
+mode_to_var(const struct fb_videomode *mode, struct fb_var_screeninfo *var,
+ u32 bpp)
+{
+ if (!mode || !var)
+ return;
+
+ var->xres = mode->xres;
+ var->yres = mode->yres;
+ var->xres_virtual = mode->xres;
+ var->yres_virtual = mode->yres;
+ var->xoffset = 0;
+ var->yoffset = 0;
+ if (bpp <= 8)
+ var->bits_per_pixel = 8;
+ else if (bpp <= 16) {
+ if (bpp == 16)
+ var->green.length = 6;
+ var->bits_per_pixel = 16;
+ } else if (bpp <= 32)
+ var->bits_per_pixel = 32;
+ else {
+ WRN_MSG("var_to_mode: bad bpp: %d\n", bpp);
+ var->bits_per_pixel = bpp;
+ }
+ var->pixclock = mode->pixclock;
+ var->left_margin = mode->left_margin;
+ var->right_margin = mode->right_margin;
+ var->upper_margin = mode->upper_margin;
+ var->lower_margin = mode->lower_margin;
+ var->hsync_len = mode->hsync_len;
+ var->vsync_len = mode->vsync_len;
+ var->sync = mode->sync;
+ var->vmode = mode->vmode;
+ var->width = -1;
+ var->height = -1;
+}
+
+static int
+intelfb_set_mode(struct intelfb_info *dinfo, struct fb_var_screeninfo *var,
+ struct display *disp, int blank)
+{
+ struct intelfb_hwstate hw;
+
+ DBG_MSG("intelfb_set_mode (%dx%d-%d)\n", var->xres, var->yres,
+ intelfb_var_to_depth(var));
+
+ memcpy(&hw, &dinfo->save_state, sizeof(hw));
+ if (intelfbhw_mode_to_hw(dinfo, &hw, var))
+ return -EINVAL;
+ intelfbhw_print_hw_state(dinfo, &hw);
+ if (intelfbhw_program_mode(dinfo, &hw, blank))
+ return -EINVAL;
+
+ update_dinfo(dinfo, var, disp);
+
+ return 0;
+}
+
+static void
+intelfb_do_install_cmap(int con, struct fb_info *info)
+{
+ struct intelfb_info *dinfo = GET_DINFO(info);
+ struct display *disp;
+
+ if (con != dinfo->currcon)
+ return;
+
+ disp = GET_DISP(info, con);
+ if (disp->cmap.len)
+ FB_SET_CMAP(&disp->cmap, 1, intelfb_setcolreg, info);
+ else {
+ int size = (disp->var.bits_per_pixel > 8) ? 16 : 256;
+ FB_SET_CMAP(fb_default_cmap(size), 1, intelfb_setcolreg, info);
+ }
+}
+
+static void
+check_vc_mode(struct intelfb_info *dinfo)
+{
+#if VERBOSE > 1
+ DBG_MSG("check_vc_mode\n");
+#endif
+
+ if (dinfo->currcon >= 0) {
+ if (vt_cons[dinfo->currcon]->vc_mode != dinfo->vc_mode) {
+ dinfo->vc_mode = vt_cons[dinfo->currcon]->vc_mode;
+ if (dinfo->vc_mode == KD_GRAPHICS) {
+ DBG_MSG("vc_mode changed to KD_GRAPHICS\n");
+ intelfbhw_2d_stop(dinfo);
+ if (dinfo->cursor.enabled) {
+ intelfbhw_cursor_hide(dinfo);
+ dinfo->cursor.enabled = 1;
+ }
+ } else {
+ DBG_MSG("vc_mode changed to KD_TEXT\n");
+ intelfbhw_2d_start(dinfo);
+#if 0
+ if (dinfo->cursor.enabled)
+ intelfbhw_cursor_show(dinfo);
+#endif
+ }
+ }
+ }
+}
+
+static void
+fbcon_intelfb_setup(struct display *p)
+{
+ struct intelfb_info *dinfo = GET_DINFO(p->fb_info);
+
+ DBG_MSG("fbcon_intelfb_setup: accel: %d bpp: %d\n",
+ TEXT_ACCEL(dinfo, &p->var), p->var.bits_per_pixel);
+
+ switch (p->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ fbcon_cfb8.setup(p);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ fbcon_cfb16.setup(p);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ fbcon_cfb32.setup(p);
+ break;
+#endif
+ }
+}
+
+static void
+fbcon_intelfb_bmove(struct display *p, int sy, int sx, int dy, int dx,
+ int height, int width)
+{
+ struct intelfb_info *dinfo = GET_DINFO(p->fb_info);
+
+#if VERBOSE > 0
+ DBG_MSG("fbcon_intelfb_bmove: accel: %d, bpp: %d\n",
+ TEXT_ACCEL(dinfo, &p->var), p->var.bits_per_pixel);
+#endif
+
+ if (TEXT_ACCEL(dinfo, &p->var)) {
+ intelfbhw_do_bitblt(dinfo, fontwidth(p) * sx,
+ fontheight(p) * sy,
+ fontwidth(p) * dx, fontheight(p) * dy,
+ fontwidth(p) * width,
+ fontheight(p) * height,
+ dinfo->pitch, p->var.bits_per_pixel);
+ intelfbhw_do_sync(dinfo);
+ return;
+ }
+
+ /* Non-accel fallback */
+ switch (p->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ fbcon_cfb8.bmove(p, sy, sx, dy, dx, height, width);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ fbcon_cfb16.bmove(p, sy, sx, dy, dx, height, width);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ fbcon_cfb32.bmove(p, sy, sx, dy, dx, height, width);
+ break;
+#endif
+ }
+}
+
+static void
+fbcon_intelfb_clear(struct vc_data *conp, struct display *p, int sy, int sx,
+ int height, int width)
+{
+ struct intelfb_info *dinfo = GET_DINFO(p->fb_info);
+
+#if VERBOSE > 0
+ DBG_MSG("fbcon_intelfb_clear: accel: %d, bpp: %d\n",
+ TEXT_ACCEL(dinfo, &p->var), p->var.bits_per_pixel);
+#endif
+
+ if (TEXT_ACCEL(dinfo, &p->var)) {
+ u32 bg = 0;
+
+ switch (p->var.bits_per_pixel) {
+ case 8:
+ bg = attr_bgcol_ec(p, conp);
+ break;
+ case 16:
+ bg = ((u16 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+ break;
+ case 32:
+ bg = ((u32 *)p->dispsw_data)[attr_bgcol_ec(p, conp)];
+ break;
+ }
+ intelfbhw_do_fillrect(dinfo, fontwidth(p) * sx,
+ fontheight(p) * sy, fontwidth(p) * width,
+ fontheight(p) * height, bg, dinfo->pitch,
+ p->var.bits_per_pixel, PAT_ROP_GXCOPY);
+ intelfbhw_do_sync(dinfo);
+ return;
+ }
+
+ /* Non-accel fallback */
+ switch (p->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ fbcon_cfb8.clear(conp, p, sy, sx, height, width);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ fbcon_cfb16.clear(conp, p, sy, sx, height, width);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ fbcon_cfb32.clear(conp, p, sy, sx, height, width);
+ break;
+#endif
+ }
+}
+
+static void
+fbcon_intelfb_putc(struct vc_data *conp, struct display *p, int c,
+ int yy, int xx)
+{
+ struct intelfb_info *dinfo = GET_DINFO(p->fb_info);
+
+#if VERBOSE > 0
+ DBG_MSG("fbcon_intelfb_putc: accel: %d, bpp: %d\n",
+ TEXT_ACCEL(dinfo, &p->var), p->var.bits_per_pixel);
+#endif
+
+ /* intelfbhw_do_drawglyph() has problems with the 852GM/855GM */
+ if (TEXT_ACCEL(dinfo, &p->var) && USE_DRAWGLYPH(dinfo)) {
+ u32 bg = 0, fg = 0;
+ u8 *cdat;
+ int fw;
+
+ switch (p->var.bits_per_pixel) {
+ case 8:
+ bg = attr_bgcol(p, c);
+ fg = attr_fgcol(p, c);
+ break;
+ case 16:
+ bg = ((u16 *)p->dispsw_data)[attr_bgcol(p, c)];
+ fg = ((u16 *)p->dispsw_data)[attr_fgcol(p, c)];
+ break;
+ case 32:
+ bg = ((u32 *)p->dispsw_data)[attr_bgcol(p, c)];
+ fg = ((u32 *)p->dispsw_data)[attr_fgcol(p, c)];
+ break;
+ }
+
+ fw = ROUND_UP_TO(fontwidth(p), 8) / 8;
+ cdat = p->fontdata + (c & p->charmask) * fontheight(p) * fw;
+
+ if (intelfbhw_do_drawglyph(dinfo, fg, bg, fontwidth(p),
+ fontheight(p), cdat,
+ xx * fontwidth(p),
+ yy * fontheight(p), dinfo->pitch,
+ p->var.bits_per_pixel)) {
+ intelfbhw_do_sync(dinfo);
+ return;
+ }
+ }
+
+ if (TEXT_ACCEL(dinfo, &p->var))
+ intelfbhw_do_sync(dinfo);
+
+ /* Non-accel fallback */
+ switch (p->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ fbcon_cfb8.putc(conp, p, c, yy, xx);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ fbcon_cfb16.putc(conp, p, c, yy, xx);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ fbcon_cfb32.putc(conp, p, c, yy, xx);
+ break;
+#endif
+ }
+}
+
+static void
+fbcon_intelfb_putcs(struct vc_data *conp, struct display *p,
+ const unsigned short *s, int count, int yy, int xx)
+{
+ struct intelfb_info *dinfo = GET_DINFO(p->fb_info);
+
+#if VERBOSE > 0
+ DBG_MSG("fbcon_intelfb_putcs: accel: %d, bpp: %d, (%d,%d) %d\n",
+ TEXT_ACCEL(dinfo, &p->var), p->var.bits_per_pixel,
+ xx, yy, count);
+#endif
+
+ if (TEXT_ACCEL(dinfo, &p->var) && USE_DRAWGLYPH(dinfo)) {
+ u32 bg = 0, fg = 0;
+ u8 *cdat;
+ int fw;
+ u16 c = scr_readw(s);
+
+ switch (p->var.bits_per_pixel) {
+ case 8:
+ bg = attr_bgcol(p, c);
+ fg = attr_fgcol(p, c);
+ break;
+ case 16:
+ bg = ((u16 *)p->dispsw_data)[attr_bgcol(p, c)];
+ fg = ((u16 *)p->dispsw_data)[attr_fgcol(p, c)];
+ break;
+ case 32:
+ bg = ((u32 *)p->dispsw_data)[attr_bgcol(p, c)];
+ fg = ((u32 *)p->dispsw_data)[attr_fgcol(p, c)];
+ break;
+ }
+ fw = ROUND_UP_TO(fontwidth(p), 8) / 8;
+ while (count--) {
+ cdat = p->fontdata + (scr_readw(s++) & p->charmask) *
+ fontheight(p) * fw;
+
+ intelfbhw_do_drawglyph(dinfo, fg, bg, fontwidth(p),
+ fontheight(p), cdat,
+ xx * fontwidth(p),
+ yy * fontheight(p),
+ dinfo->pitch,
+ p->var.bits_per_pixel);
+ xx++;
+ }
+ intelfbhw_do_sync(dinfo);
+ return;
+ }
+
+ if (TEXT_ACCEL(dinfo, &p->var))
+ intelfbhw_do_sync(dinfo);
+
+ /* Non-accel fallback */
+ switch (p->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ fbcon_cfb8.putcs(conp, p, s, count, yy, xx);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ fbcon_cfb16.putcs(conp, p, s, count, yy, xx);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ fbcon_cfb32.putcs(conp, p, s, count, yy, xx);
+ break;
+#endif
+ }
+}
+
+static void
+fbcon_intelfb_revc(struct display *p, int xx, int yy)
+{
+ struct intelfb_info *dinfo = GET_DINFO(p->fb_info);
+
+#if VERBOSE > 0
+ DBG_MSG("fbcon_intelfb_revc: accel: %d, bpp: %d\n",
+ TEXT_ACCEL(dinfo, &p->var), p->var.bits_per_pixel);
+#endif
+
+ if (TEXT_ACCEL(dinfo, &p->var)) {
+ int bpp = p->var.bits_per_pixel;
+ u32 xor_mask = bpp == 8 ? 0x0f : 0xffffffff;
+
+ intelfbhw_do_fillrect(dinfo, xx * fontwidth(p),
+ yy * fontheight(p), fontwidth(p),
+ fontheight(p), xor_mask, dinfo->pitch,
+ bpp, PAT_ROP_GXXOR);
+ intelfbhw_do_sync(dinfo);
+ return;
+ }
+
+ /* Non-accel fallback */
+ switch (p->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ fbcon_cfb8.revc(p, xx, yy);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ fbcon_cfb16.revc(p, xx, yy);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ fbcon_cfb32.revc(p, xx, yy);
+ break;
+#endif
+ }
+}
+
+static void
+fbcon_intelfb_clear_margins(struct vc_data *conp, struct display *p,
+ int bottom_only)
+{
+ struct intelfb_info *dinfo = GET_DINFO(p->fb_info);
+
+#if VERBOSE > 0
+ DBG_MSG("fbcon_intelfb_clear_margins: accel: %d, bpp: %d\n",
+ TEXT_ACCEL(dinfo, &p->var), p->var.bits_per_pixel);
+#endif
+
+ if (TEXT_ACCEL(dinfo, &p->var)) {
+ u32 cw, ch, rw, bh, rs, bs;
+
+ cw = fontwidth(p);
+ ch = fontheight(p);
+ rw = p->var.xres % cw;
+ bh = p->var.yres % ch;
+ rs = p->var.xres - rw;
+ bs = p->var.yres - bh;
+
+ if (!bottom_only && rw) {
+ intelfbhw_do_fillrect(dinfo, p->var.xoffset + rs, 0,
+ rw, p->var.yres_virtual, 0,
+ dinfo->pitch,
+ p->var.bits_per_pixel,
+ PAT_ROP_GXCOPY);
+ }
+ if (bh) {
+ intelfbhw_do_fillrect(dinfo, p->var.xoffset,
+ p->var.yoffset + bs, rs, bh, 0,
+ dinfo->pitch,
+ p->var.bits_per_pixel,
+ PAT_ROP_GXCOPY);
+ }
+ if ((!bottom_only && rw) || bh) {
+ intelfbhw_do_sync(dinfo);
+ }
+ return;
+ }
+
+ /* Non-accel fallback */
+ switch (p->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ fbcon_cfb8.clear_margins(conp, p, bottom_only);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ fbcon_cfb16.clear_margins(conp, p, bottom_only);
+ break;
+#endif
+#ifdef FBCON_HAS_CFB32
+ case 32:
+ fbcon_cfb32.clear_margins(conp, p, bottom_only);
+ break;
+#endif
+ }
+}
+
+void
+intelfb_create_cursor_shape(struct intelfb_info *dinfo, struct display *disp)
+{
+ u32 h, cu, cd;
+
+ DBG_MSG("intelfb_create_cursor_shape\n");
+
+ h = fontheight(disp);
+ cd = h;
+ if (cd >= 10)
+ cd --;
+ dinfo->cursor.type = disp->conp->vc_cursor_type & CUR_HWMASK;
+ switch (dinfo->cursor.type) {
+ case CUR_NONE:
+ cu = cd;
+ break;
+ case CUR_UNDERLINE:
+ cu = cd - 2;
+ break;
+ case CUR_LOWER_THIRD:
+ cu = (h * 2) / 3;
+ break;
+ case CUR_LOWER_HALF:
+ cu = h / 2;
+ break;
+ case CUR_TWO_THIRDS:
+ cu = h / 3;
+ break;
+ case CUR_BLOCK:
+ default:
+ cu = 0;
+ cd = h;
+ break;
+ }
+ dinfo->cursor.w = fontwidth(disp);
+ dinfo->cursor.u = cu;
+ dinfo->cursor.d = cd;
+}
+
+static void
+intelfb_flashcursor(unsigned long ptr)
+{
+ struct intelfb_info *dinfo = (struct intelfb_info *)ptr;
+ unsigned long flags;
+
+#if VERBOSE > 2
+ DBG_MSG("intelfb_flashcursor\n");
+#endif
+
+ spin_lock_irqsave(&dinfo->DAClock, flags);
+ if (dinfo->cursor.enabled) {
+ if (dinfo->cursor.on)
+ intelfbhw_cursor_hide(dinfo);
+ else
+ intelfbhw_cursor_show(dinfo);
+ dinfo->cursor.enabled = 1;
+ }
+ dinfo->cursor.timer.expires = jiffies + HZ / 2;
+ add_timer(&dinfo->cursor.timer);
+ spin_unlock_irqrestore(&dinfo->DAClock, flags);
+}
+
+static void
+fbcon_intelfb_cursor(struct display *disp, int mode, int x, int y)
+{
+ unsigned long flags = 0;
+ struct intelfb_info *dinfo = GET_DINFO(disp->fb_info);
+
+#if VERBOSE > 0
+ DBG_MSG("fbcon_intelfb_cursor, mode is %d (%d)\n",
+ mode, dinfo->cursor.state);
+#endif
+
+ /*
+ * This appears to be the first place that we can detect changes
+ * in vc_mode. We need to know this so that acceleration can be
+ * enabled or disabled so that it won't interfere with an XFree86
+ * server.
+ */
+ check_vc_mode(dinfo);
+
+ if (!dinfo->hwcursor) {
+ disp->dispsw->cursor = NULL;
+ fb_con.con_cursor(disp->conp, mode);
+ disp->dispsw->cursor = fbcon_intelfb_cursor;
+ return;
+ }
+
+ if (mode == CM_ERASE) {
+ if (dinfo->cursor.state != CM_ERASE) {
+ spin_lock_irqsave(&dinfo->DAClock, flags);
+ dinfo->cursor.state = CM_ERASE;
+ intelfbhw_cursor_hide(dinfo);
+ del_timer(&dinfo->cursor.timer);
+ spin_unlock_irqrestore(&dinfo->DAClock, flags);
+ }
+ return;
+ }
+ if ((disp->conp->vc_cursor_type & CUR_HWMASK) != dinfo->cursor.type)
+ intelfbhw_cursor_load(dinfo, disp);
+ x *= fontwidth(disp);
+ y *= fontheight(disp);
+ y -= disp->var.yoffset;
+ x -= disp->var.xoffset;
+ spin_lock_irqsave(&dinfo->DAClock, flags);
+ if (x != dinfo->cursor.x || y != dinfo->cursor.y ||
+ dinfo->cursor.redraw) {
+#if 1
+ intelfbhw_cursor_hide(dinfo);
+#endif
+ intelfbhw_cursor_setcolor(dinfo, 0, 0xffffff);
+ intelfbhw_cursor_setpos(dinfo, x, y);
+ }
+ dinfo->cursor.state = CM_DRAW;
+ mod_timer(&dinfo->cursor.timer, jiffies + HZ / 2);
+ intelfbhw_cursor_show(dinfo);
+ spin_unlock_irqrestore(&dinfo->DAClock, flags);
+}
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)