| /* |
| * 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 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, >t_info)) { |
| ERR_MSG("cannot get agp info\n"); |
| agp_backend_release(bridge); |
| cleanup(dinfo); |
| return -ENODEV; |
| } |
| |
| if (MB(voffset) < stolen_size) |
| offset = (stolen_size >> 12); |
| else |
| offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; |
| |
| /* set the mem offsets - set them after the already used pages */ |
| if (dinfo->accel) |
| dinfo->ring.offset = offset + gtt_info.current_memory; |
| if (dinfo->hwcursor) |
| dinfo->cursor.offset = offset + |
| + gtt_info.current_memory + (dinfo->ring.size >> 12); |
| if (dinfo->fbmem_gart) |
| dinfo->fb.offset = offset + |
| + gtt_info.current_memory + (dinfo->ring.size >> 12) |
| + (dinfo->cursor.size >> 12); |
| |
| /* Allocate memories (which aren't stolen) */ |
| /* Map the fb and MMIO regions */ |
| /* ioremap only up to the end of used aperture */ |
| dinfo->aperture.virtual = (u8 __iomem *)ioremap_wc |
| (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) |
| + dinfo->fb.size); |
| if (!dinfo->aperture.virtual) { |
| ERR_MSG("Cannot remap FB region.\n"); |
| agp_backend_release(bridge); |
| cleanup(dinfo); |
| return -ENODEV; |
| } |
| |
| dinfo->mmio_base = |
| (u8 __iomem *)ioremap_nocache(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; |
| } |
| |