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2524 lines
64 KiB
2524 lines
64 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* $Id: aty128fb.c,v 1.1.1.1.36.1 1999/12/11 09:03:05 Exp $ |
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* linux/drivers/video/aty128fb.c -- Frame buffer device for ATI Rage128 |
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* |
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* Copyright (C) 1999-2003, Brad Douglas <[email protected]> |
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* Copyright (C) 1999, Anthony Tong <[email protected]> |
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* |
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* Ani Joshi / Jeff Garzik |
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* - Code cleanup |
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* |
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* Michel Danzer <[email protected]> |
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* - 15/16 bit cleanup |
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* - fix panning |
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* |
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* Benjamin Herrenschmidt |
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* - pmac-specific PM stuff |
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* - various fixes & cleanups |
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* |
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* Andreas Hundt <[email protected]> |
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* - FB_ACTIVATE fixes |
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* |
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* Paul Mackerras <[email protected]> |
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* - Convert to new framebuffer API, |
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* fix colormap setting at 16 bits/pixel (565) |
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* |
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* Paul Mundt |
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* - PCI hotplug |
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* |
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* Jon Smirl <[email protected]> |
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* - PCI ID update |
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* - replace ROM BIOS search |
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* |
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* Based off of Geert's atyfb.c and vfb.c. |
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* |
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* TODO: |
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* - monitor sensing (DDC) |
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* - virtual display |
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* - other platform support (only ppc/x86 supported) |
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* - hardware cursor support |
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* |
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* Please cc: your patches to [email protected]. |
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*/ |
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|
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/* |
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* A special note of gratitude to ATI's devrel for providing documentation, |
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* example code and hardware. Thanks Nitya. -atong and brad |
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*/ |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/string.h> |
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#include <linux/mm.h> |
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#include <linux/vmalloc.h> |
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#include <linux/delay.h> |
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#include <linux/interrupt.h> |
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#include <linux/uaccess.h> |
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#include <linux/fb.h> |
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#include <linux/init.h> |
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#include <linux/pci.h> |
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#include <linux/ioport.h> |
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#include <linux/console.h> |
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#include <linux/backlight.h> |
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#include <asm/io.h> |
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#ifdef CONFIG_PPC_PMAC |
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#include <asm/machdep.h> |
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#include <asm/pmac_feature.h> |
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#include <asm/prom.h> |
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#include "../macmodes.h" |
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#endif |
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#ifdef CONFIG_PMAC_BACKLIGHT |
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#include <asm/backlight.h> |
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#endif |
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#ifdef CONFIG_BOOTX_TEXT |
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#include <asm/btext.h> |
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#endif /* CONFIG_BOOTX_TEXT */ |
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#include <video/aty128.h> |
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/* Debug flag */ |
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#undef DEBUG |
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#ifdef DEBUG |
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#define DBG(fmt, args...) \ |
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printk(KERN_DEBUG "aty128fb: %s " fmt, __func__, ##args); |
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#else |
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#define DBG(fmt, args...) |
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#endif |
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#ifndef CONFIG_PPC_PMAC |
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/* default mode */ |
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static const struct fb_var_screeninfo default_var = { |
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/* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */ |
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640, 480, 640, 480, 0, 0, 8, 0, |
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, |
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0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2, |
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0, FB_VMODE_NONINTERLACED |
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}; |
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#else /* CONFIG_PPC_PMAC */ |
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/* default to 1024x768 at 75Hz on PPC - this will work |
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* on the iMac, the usual 640x480 @ 60Hz doesn't. */ |
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static const struct fb_var_screeninfo default_var = { |
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/* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */ |
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1024, 768, 1024, 768, 0, 0, 8, 0, |
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{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0}, |
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0, 0, -1, -1, 0, 12699, 160, 32, 28, 1, 96, 3, |
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FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, |
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FB_VMODE_NONINTERLACED |
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}; |
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#endif /* CONFIG_PPC_PMAC */ |
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/* default modedb mode */ |
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/* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */ |
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static const struct fb_videomode defaultmode = { |
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.refresh = 60, |
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.xres = 640, |
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.yres = 480, |
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.pixclock = 39722, |
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.left_margin = 48, |
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.right_margin = 16, |
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.upper_margin = 33, |
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.lower_margin = 10, |
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.hsync_len = 96, |
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.vsync_len = 2, |
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.sync = 0, |
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.vmode = FB_VMODE_NONINTERLACED |
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}; |
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/* Chip generations */ |
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enum { |
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rage_128, |
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rage_128_pci, |
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rage_128_pro, |
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rage_128_pro_pci, |
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rage_M3, |
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rage_M3_pci, |
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rage_M4, |
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rage_128_ultra, |
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}; |
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/* Must match above enum */ |
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static char * const r128_family[] = { |
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"AGP", |
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"PCI", |
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"PRO AGP", |
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"PRO PCI", |
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"M3 AGP", |
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"M3 PCI", |
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"M4 AGP", |
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"Ultra AGP", |
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}; |
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/* |
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* PCI driver prototypes |
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*/ |
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static int aty128_probe(struct pci_dev *pdev, |
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const struct pci_device_id *ent); |
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static void aty128_remove(struct pci_dev *pdev); |
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static int aty128_pci_suspend_late(struct device *dev, pm_message_t state); |
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static int __maybe_unused aty128_pci_suspend(struct device *dev); |
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static int __maybe_unused aty128_pci_hibernate(struct device *dev); |
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static int __maybe_unused aty128_pci_freeze(struct device *dev); |
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static int __maybe_unused aty128_pci_resume(struct device *dev); |
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static int aty128_do_resume(struct pci_dev *pdev); |
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static const struct dev_pm_ops aty128_pci_pm_ops = { |
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.suspend = aty128_pci_suspend, |
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.resume = aty128_pci_resume, |
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.freeze = aty128_pci_freeze, |
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.thaw = aty128_pci_resume, |
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.poweroff = aty128_pci_hibernate, |
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.restore = aty128_pci_resume, |
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}; |
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/* supported Rage128 chipsets */ |
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static const struct pci_device_id aty128_pci_tbl[] = { |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LE, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3_pci }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LF, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_MF, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_ML, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M4 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PA, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PB, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PC, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PD, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PE, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PF, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PG, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PH, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PI, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PJ, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PK, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PL, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PM, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PN, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PO, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PP, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PQ, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PR, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro_pci }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PS, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PT, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PU, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PV, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PW, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_PX, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pro }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RE, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RF, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RG, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RK, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_RL, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SE, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SF, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_pci }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SG, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SH, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SK, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SL, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SM, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_SN, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128 }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TF, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TL, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TR, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TS, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TT, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, |
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{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_TU, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_128_ultra }, |
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{ 0, } |
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}; |
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MODULE_DEVICE_TABLE(pci, aty128_pci_tbl); |
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static struct pci_driver aty128fb_driver = { |
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.name = "aty128fb", |
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.id_table = aty128_pci_tbl, |
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.probe = aty128_probe, |
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.remove = aty128_remove, |
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.driver.pm = &aty128_pci_pm_ops, |
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}; |
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/* packed BIOS settings */ |
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#ifndef CONFIG_PPC |
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typedef struct { |
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u8 clock_chip_type; |
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u8 struct_size; |
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u8 accelerator_entry; |
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u8 VGA_entry; |
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u16 VGA_table_offset; |
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u16 POST_table_offset; |
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u16 XCLK; |
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u16 MCLK; |
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u8 num_PLL_blocks; |
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u8 size_PLL_blocks; |
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u16 PCLK_ref_freq; |
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u16 PCLK_ref_divider; |
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u32 PCLK_min_freq; |
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u32 PCLK_max_freq; |
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u16 MCLK_ref_freq; |
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u16 MCLK_ref_divider; |
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u32 MCLK_min_freq; |
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u32 MCLK_max_freq; |
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u16 XCLK_ref_freq; |
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u16 XCLK_ref_divider; |
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u32 XCLK_min_freq; |
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u32 XCLK_max_freq; |
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} __attribute__ ((packed)) PLL_BLOCK; |
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#endif /* !CONFIG_PPC */ |
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/* onboard memory information */ |
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struct aty128_meminfo { |
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u8 ML; |
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u8 MB; |
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u8 Trcd; |
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u8 Trp; |
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u8 Twr; |
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u8 CL; |
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u8 Tr2w; |
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u8 LoopLatency; |
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u8 DspOn; |
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u8 Rloop; |
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const char *name; |
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}; |
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/* various memory configurations */ |
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static const struct aty128_meminfo sdr_128 = { |
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.ML = 4, |
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.MB = 4, |
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.Trcd = 3, |
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.Trp = 3, |
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.Twr = 1, |
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.CL = 3, |
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.Tr2w = 1, |
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.LoopLatency = 16, |
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.DspOn = 30, |
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.Rloop = 16, |
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.name = "128-bit SDR SGRAM (1:1)", |
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}; |
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static const struct aty128_meminfo sdr_sgram = { |
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.ML = 4, |
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.MB = 4, |
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.Trcd = 1, |
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.Trp = 2, |
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.Twr = 1, |
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.CL = 2, |
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.Tr2w = 1, |
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.LoopLatency = 16, |
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.DspOn = 24, |
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.Rloop = 16, |
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.name = "64-bit SDR SGRAM (2:1)", |
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}; |
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static const struct aty128_meminfo ddr_sgram = { |
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.ML = 4, |
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.MB = 4, |
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.Trcd = 3, |
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.Trp = 3, |
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.Twr = 2, |
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.CL = 3, |
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.Tr2w = 1, |
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.LoopLatency = 16, |
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.DspOn = 31, |
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.Rloop = 16, |
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.name = "64-bit DDR SGRAM", |
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}; |
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static const struct fb_fix_screeninfo aty128fb_fix = { |
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.id = "ATY Rage128", |
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.type = FB_TYPE_PACKED_PIXELS, |
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.visual = FB_VISUAL_PSEUDOCOLOR, |
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.xpanstep = 8, |
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.ypanstep = 1, |
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.mmio_len = 0x2000, |
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.accel = FB_ACCEL_ATI_RAGE128, |
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}; |
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static char *mode_option = NULL; |
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|
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#ifdef CONFIG_PPC_PMAC |
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static int default_vmode = VMODE_1024_768_60; |
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static int default_cmode = CMODE_8; |
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#endif |
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static int default_crt_on = 0; |
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static int default_lcd_on = 1; |
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static bool mtrr = true; |
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#ifdef CONFIG_FB_ATY128_BACKLIGHT |
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static int backlight = IS_BUILTIN(CONFIG_PMAC_BACKLIGHT); |
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#endif |
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/* PLL constants */ |
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struct aty128_constants { |
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u32 ref_clk; |
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u32 ppll_min; |
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u32 ppll_max; |
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u32 ref_divider; |
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u32 xclk; |
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u32 fifo_width; |
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u32 fifo_depth; |
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}; |
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struct aty128_crtc { |
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u32 gen_cntl; |
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u32 h_total, h_sync_strt_wid; |
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u32 v_total, v_sync_strt_wid; |
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u32 pitch; |
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u32 offset, offset_cntl; |
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u32 xoffset, yoffset; |
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u32 vxres, vyres; |
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u32 depth, bpp; |
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}; |
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struct aty128_pll { |
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u32 post_divider; |
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u32 feedback_divider; |
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u32 vclk; |
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}; |
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struct aty128_ddafifo { |
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u32 dda_config; |
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u32 dda_on_off; |
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}; |
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|
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/* register values for a specific mode */ |
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struct aty128fb_par { |
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struct aty128_crtc crtc; |
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struct aty128_pll pll; |
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struct aty128_ddafifo fifo_reg; |
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u32 accel_flags; |
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struct aty128_constants constants; /* PLL and others */ |
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void __iomem *regbase; /* remapped mmio */ |
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u32 vram_size; /* onboard video ram */ |
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int chip_gen; |
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const struct aty128_meminfo *mem; /* onboard mem info */ |
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int wc_cookie; |
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int blitter_may_be_busy; |
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int fifo_slots; /* free slots in FIFO (64 max) */ |
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|
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int crt_on, lcd_on; |
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struct pci_dev *pdev; |
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struct fb_info *next; |
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int asleep; |
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int lock_blank; |
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|
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u8 red[32]; /* see aty128fb_setcolreg */ |
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u8 green[64]; |
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u8 blue[32]; |
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u32 pseudo_palette[16]; /* used for TRUECOLOR */ |
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}; |
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|
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#define round_div(n, d) ((n+(d/2))/d) |
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|
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static int aty128fb_check_var(struct fb_var_screeninfo *var, |
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struct fb_info *info); |
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static int aty128fb_set_par(struct fb_info *info); |
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static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
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u_int transp, struct fb_info *info); |
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static int aty128fb_pan_display(struct fb_var_screeninfo *var, |
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struct fb_info *fb); |
|
static int aty128fb_blank(int blank, struct fb_info *fb); |
|
static int aty128fb_ioctl(struct fb_info *info, u_int cmd, unsigned long arg); |
|
static int aty128fb_sync(struct fb_info *info); |
|
|
|
/* |
|
* Internal routines |
|
*/ |
|
|
|
static int aty128_encode_var(struct fb_var_screeninfo *var, |
|
const struct aty128fb_par *par); |
|
static int aty128_decode_var(struct fb_var_screeninfo *var, |
|
struct aty128fb_par *par); |
|
static void aty128_timings(struct aty128fb_par *par); |
|
static void aty128_init_engine(struct aty128fb_par *par); |
|
static void aty128_reset_engine(const struct aty128fb_par *par); |
|
static void aty128_flush_pixel_cache(const struct aty128fb_par *par); |
|
static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par); |
|
static void wait_for_fifo(u16 entries, struct aty128fb_par *par); |
|
static void wait_for_idle(struct aty128fb_par *par); |
|
static u32 depth_to_dst(u32 depth); |
|
|
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
static void aty128_bl_set_power(struct fb_info *info, int power); |
|
#endif |
|
|
|
#define BIOS_IN8(v) (readb(bios + (v))) |
|
#define BIOS_IN16(v) (readb(bios + (v)) | \ |
|
(readb(bios + (v) + 1) << 8)) |
|
#define BIOS_IN32(v) (readb(bios + (v)) | \ |
|
(readb(bios + (v) + 1) << 8) | \ |
|
(readb(bios + (v) + 2) << 16) | \ |
|
(readb(bios + (v) + 3) << 24)) |
|
|
|
|
|
static const struct fb_ops aty128fb_ops = { |
|
.owner = THIS_MODULE, |
|
.fb_check_var = aty128fb_check_var, |
|
.fb_set_par = aty128fb_set_par, |
|
.fb_setcolreg = aty128fb_setcolreg, |
|
.fb_pan_display = aty128fb_pan_display, |
|
.fb_blank = aty128fb_blank, |
|
.fb_ioctl = aty128fb_ioctl, |
|
.fb_sync = aty128fb_sync, |
|
.fb_fillrect = cfb_fillrect, |
|
.fb_copyarea = cfb_copyarea, |
|
.fb_imageblit = cfb_imageblit, |
|
}; |
|
|
|
/* |
|
* Functions to read from/write to the mmio registers |
|
* - endian conversions may possibly be avoided by |
|
* using the other register aperture. TODO. |
|
*/ |
|
static inline u32 _aty_ld_le32(volatile unsigned int regindex, |
|
const struct aty128fb_par *par) |
|
{ |
|
return readl (par->regbase + regindex); |
|
} |
|
|
|
static inline void _aty_st_le32(volatile unsigned int regindex, u32 val, |
|
const struct aty128fb_par *par) |
|
{ |
|
writel (val, par->regbase + regindex); |
|
} |
|
|
|
static inline u8 _aty_ld_8(unsigned int regindex, |
|
const struct aty128fb_par *par) |
|
{ |
|
return readb (par->regbase + regindex); |
|
} |
|
|
|
static inline void _aty_st_8(unsigned int regindex, u8 val, |
|
const struct aty128fb_par *par) |
|
{ |
|
writeb (val, par->regbase + regindex); |
|
} |
|
|
|
#define aty_ld_le32(regindex) _aty_ld_le32(regindex, par) |
|
#define aty_st_le32(regindex, val) _aty_st_le32(regindex, val, par) |
|
#define aty_ld_8(regindex) _aty_ld_8(regindex, par) |
|
#define aty_st_8(regindex, val) _aty_st_8(regindex, val, par) |
|
|
|
/* |
|
* Functions to read from/write to the pll registers |
|
*/ |
|
|
|
#define aty_ld_pll(pll_index) _aty_ld_pll(pll_index, par) |
|
#define aty_st_pll(pll_index, val) _aty_st_pll(pll_index, val, par) |
|
|
|
|
|
static u32 _aty_ld_pll(unsigned int pll_index, |
|
const struct aty128fb_par *par) |
|
{ |
|
aty_st_8(CLOCK_CNTL_INDEX, pll_index & 0x3F); |
|
return aty_ld_le32(CLOCK_CNTL_DATA); |
|
} |
|
|
|
|
|
static void _aty_st_pll(unsigned int pll_index, u32 val, |
|
const struct aty128fb_par *par) |
|
{ |
|
aty_st_8(CLOCK_CNTL_INDEX, (pll_index & 0x3F) | PLL_WR_EN); |
|
aty_st_le32(CLOCK_CNTL_DATA, val); |
|
} |
|
|
|
|
|
/* return true when the PLL has completed an atomic update */ |
|
static int aty_pll_readupdate(const struct aty128fb_par *par) |
|
{ |
|
return !(aty_ld_pll(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R); |
|
} |
|
|
|
|
|
static void aty_pll_wait_readupdate(const struct aty128fb_par *par) |
|
{ |
|
unsigned long timeout = jiffies + HZ/100; // should be more than enough |
|
int reset = 1; |
|
|
|
while (time_before(jiffies, timeout)) |
|
if (aty_pll_readupdate(par)) { |
|
reset = 0; |
|
break; |
|
} |
|
|
|
if (reset) /* reset engine?? */ |
|
printk(KERN_DEBUG "aty128fb: PLL write timeout!\n"); |
|
} |
|
|
|
|
|
/* tell PLL to update */ |
|
static void aty_pll_writeupdate(const struct aty128fb_par *par) |
|
{ |
|
aty_pll_wait_readupdate(par); |
|
|
|
aty_st_pll(PPLL_REF_DIV, |
|
aty_ld_pll(PPLL_REF_DIV) | PPLL_ATOMIC_UPDATE_W); |
|
} |
|
|
|
|
|
/* write to the scratch register to test r/w functionality */ |
|
static int register_test(const struct aty128fb_par *par) |
|
{ |
|
u32 val; |
|
int flag = 0; |
|
|
|
val = aty_ld_le32(BIOS_0_SCRATCH); |
|
|
|
aty_st_le32(BIOS_0_SCRATCH, 0x55555555); |
|
if (aty_ld_le32(BIOS_0_SCRATCH) == 0x55555555) { |
|
aty_st_le32(BIOS_0_SCRATCH, 0xAAAAAAAA); |
|
|
|
if (aty_ld_le32(BIOS_0_SCRATCH) == 0xAAAAAAAA) |
|
flag = 1; |
|
} |
|
|
|
aty_st_le32(BIOS_0_SCRATCH, val); // restore value |
|
return flag; |
|
} |
|
|
|
|
|
/* |
|
* Accelerator engine functions |
|
*/ |
|
static void do_wait_for_fifo(u16 entries, struct aty128fb_par *par) |
|
{ |
|
int i; |
|
|
|
for (;;) { |
|
for (i = 0; i < 2000000; i++) { |
|
par->fifo_slots = aty_ld_le32(GUI_STAT) & 0x0fff; |
|
if (par->fifo_slots >= entries) |
|
return; |
|
} |
|
aty128_reset_engine(par); |
|
} |
|
} |
|
|
|
|
|
static void wait_for_idle(struct aty128fb_par *par) |
|
{ |
|
int i; |
|
|
|
do_wait_for_fifo(64, par); |
|
|
|
for (;;) { |
|
for (i = 0; i < 2000000; i++) { |
|
if (!(aty_ld_le32(GUI_STAT) & (1 << 31))) { |
|
aty128_flush_pixel_cache(par); |
|
par->blitter_may_be_busy = 0; |
|
return; |
|
} |
|
} |
|
aty128_reset_engine(par); |
|
} |
|
} |
|
|
|
|
|
static void wait_for_fifo(u16 entries, struct aty128fb_par *par) |
|
{ |
|
if (par->fifo_slots < entries) |
|
do_wait_for_fifo(64, par); |
|
par->fifo_slots -= entries; |
|
} |
|
|
|
|
|
static void aty128_flush_pixel_cache(const struct aty128fb_par *par) |
|
{ |
|
int i; |
|
u32 tmp; |
|
|
|
tmp = aty_ld_le32(PC_NGUI_CTLSTAT); |
|
tmp &= ~(0x00ff); |
|
tmp |= 0x00ff; |
|
aty_st_le32(PC_NGUI_CTLSTAT, tmp); |
|
|
|
for (i = 0; i < 2000000; i++) |
|
if (!(aty_ld_le32(PC_NGUI_CTLSTAT) & PC_BUSY)) |
|
break; |
|
} |
|
|
|
|
|
static void aty128_reset_engine(const struct aty128fb_par *par) |
|
{ |
|
u32 gen_reset_cntl, clock_cntl_index, mclk_cntl; |
|
|
|
aty128_flush_pixel_cache(par); |
|
|
|
clock_cntl_index = aty_ld_le32(CLOCK_CNTL_INDEX); |
|
mclk_cntl = aty_ld_pll(MCLK_CNTL); |
|
|
|
aty_st_pll(MCLK_CNTL, mclk_cntl | 0x00030000); |
|
|
|
gen_reset_cntl = aty_ld_le32(GEN_RESET_CNTL); |
|
aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl | SOFT_RESET_GUI); |
|
aty_ld_le32(GEN_RESET_CNTL); |
|
aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl & ~(SOFT_RESET_GUI)); |
|
aty_ld_le32(GEN_RESET_CNTL); |
|
|
|
aty_st_pll(MCLK_CNTL, mclk_cntl); |
|
aty_st_le32(CLOCK_CNTL_INDEX, clock_cntl_index); |
|
aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl); |
|
|
|
/* use old pio mode */ |
|
aty_st_le32(PM4_BUFFER_CNTL, PM4_BUFFER_CNTL_NONPM4); |
|
|
|
DBG("engine reset"); |
|
} |
|
|
|
|
|
static void aty128_init_engine(struct aty128fb_par *par) |
|
{ |
|
u32 pitch_value; |
|
|
|
wait_for_idle(par); |
|
|
|
/* 3D scaler not spoken here */ |
|
wait_for_fifo(1, par); |
|
aty_st_le32(SCALE_3D_CNTL, 0x00000000); |
|
|
|
aty128_reset_engine(par); |
|
|
|
pitch_value = par->crtc.pitch; |
|
if (par->crtc.bpp == 24) { |
|
pitch_value = pitch_value * 3; |
|
} |
|
|
|
wait_for_fifo(4, par); |
|
/* setup engine offset registers */ |
|
aty_st_le32(DEFAULT_OFFSET, 0x00000000); |
|
|
|
/* setup engine pitch registers */ |
|
aty_st_le32(DEFAULT_PITCH, pitch_value); |
|
|
|
/* set the default scissor register to max dimensions */ |
|
aty_st_le32(DEFAULT_SC_BOTTOM_RIGHT, (0x1FFF << 16) | 0x1FFF); |
|
|
|
/* set the drawing controls registers */ |
|
aty_st_le32(DP_GUI_MASTER_CNTL, |
|
GMC_SRC_PITCH_OFFSET_DEFAULT | |
|
GMC_DST_PITCH_OFFSET_DEFAULT | |
|
GMC_SRC_CLIP_DEFAULT | |
|
GMC_DST_CLIP_DEFAULT | |
|
GMC_BRUSH_SOLIDCOLOR | |
|
(depth_to_dst(par->crtc.depth) << 8) | |
|
GMC_SRC_DSTCOLOR | |
|
GMC_BYTE_ORDER_MSB_TO_LSB | |
|
GMC_DP_CONVERSION_TEMP_6500 | |
|
ROP3_PATCOPY | |
|
GMC_DP_SRC_RECT | |
|
GMC_3D_FCN_EN_CLR | |
|
GMC_DST_CLR_CMP_FCN_CLEAR | |
|
GMC_AUX_CLIP_CLEAR | |
|
GMC_WRITE_MASK_SET); |
|
|
|
wait_for_fifo(8, par); |
|
/* clear the line drawing registers */ |
|
aty_st_le32(DST_BRES_ERR, 0); |
|
aty_st_le32(DST_BRES_INC, 0); |
|
aty_st_le32(DST_BRES_DEC, 0); |
|
|
|
/* set brush color registers */ |
|
aty_st_le32(DP_BRUSH_FRGD_CLR, 0xFFFFFFFF); /* white */ |
|
aty_st_le32(DP_BRUSH_BKGD_CLR, 0x00000000); /* black */ |
|
|
|
/* set source color registers */ |
|
aty_st_le32(DP_SRC_FRGD_CLR, 0xFFFFFFFF); /* white */ |
|
aty_st_le32(DP_SRC_BKGD_CLR, 0x00000000); /* black */ |
|
|
|
/* default write mask */ |
|
aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF); |
|
|
|
/* Wait for all the writes to be completed before returning */ |
|
wait_for_idle(par); |
|
} |
|
|
|
|
|
/* convert depth values to their register representation */ |
|
static u32 depth_to_dst(u32 depth) |
|
{ |
|
if (depth <= 8) |
|
return DST_8BPP; |
|
else if (depth <= 15) |
|
return DST_15BPP; |
|
else if (depth == 16) |
|
return DST_16BPP; |
|
else if (depth <= 24) |
|
return DST_24BPP; |
|
else if (depth <= 32) |
|
return DST_32BPP; |
|
|
|
return -EINVAL; |
|
} |
|
|
|
/* |
|
* PLL informations retreival |
|
*/ |
|
|
|
|
|
#ifndef __sparc__ |
|
static void __iomem *aty128_map_ROM(const struct aty128fb_par *par, |
|
struct pci_dev *dev) |
|
{ |
|
u16 dptr; |
|
u8 rom_type; |
|
void __iomem *bios; |
|
size_t rom_size; |
|
|
|
/* Fix from ATI for problem with Rage128 hardware not leaving ROM enabled */ |
|
unsigned int temp; |
|
temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG); |
|
temp &= 0x00ffffffu; |
|
temp |= 0x04 << 24; |
|
aty_st_le32(RAGE128_MPP_TB_CONFIG, temp); |
|
temp = aty_ld_le32(RAGE128_MPP_TB_CONFIG); |
|
|
|
bios = pci_map_rom(dev, &rom_size); |
|
|
|
if (!bios) { |
|
printk(KERN_ERR "aty128fb: ROM failed to map\n"); |
|
return NULL; |
|
} |
|
|
|
/* Very simple test to make sure it appeared */ |
|
if (BIOS_IN16(0) != 0xaa55) { |
|
printk(KERN_DEBUG "aty128fb: Invalid ROM signature %x should " |
|
" be 0xaa55\n", BIOS_IN16(0)); |
|
goto failed; |
|
} |
|
|
|
/* Look for the PCI data to check the ROM type */ |
|
dptr = BIOS_IN16(0x18); |
|
|
|
/* Check the PCI data signature. If it's wrong, we still assume a normal |
|
* x86 ROM for now, until I've verified this works everywhere. |
|
* The goal here is more to phase out Open Firmware images. |
|
* |
|
* Currently, we only look at the first PCI data, we could iteratre and |
|
* deal with them all, and we should use fb_bios_start relative to start |
|
* of image and not relative start of ROM, but so far, I never found a |
|
* dual-image ATI card. |
|
* |
|
* typedef struct { |
|
* u32 signature; + 0x00 |
|
* u16 vendor; + 0x04 |
|
* u16 device; + 0x06 |
|
* u16 reserved_1; + 0x08 |
|
* u16 dlen; + 0x0a |
|
* u8 drevision; + 0x0c |
|
* u8 class_hi; + 0x0d |
|
* u16 class_lo; + 0x0e |
|
* u16 ilen; + 0x10 |
|
* u16 irevision; + 0x12 |
|
* u8 type; + 0x14 |
|
* u8 indicator; + 0x15 |
|
* u16 reserved_2; + 0x16 |
|
* } pci_data_t; |
|
*/ |
|
if (BIOS_IN32(dptr) != (('R' << 24) | ('I' << 16) | ('C' << 8) | 'P')) { |
|
printk(KERN_WARNING "aty128fb: PCI DATA signature in ROM incorrect: %08x\n", |
|
BIOS_IN32(dptr)); |
|
goto anyway; |
|
} |
|
rom_type = BIOS_IN8(dptr + 0x14); |
|
switch(rom_type) { |
|
case 0: |
|
printk(KERN_INFO "aty128fb: Found Intel x86 BIOS ROM Image\n"); |
|
break; |
|
case 1: |
|
printk(KERN_INFO "aty128fb: Found Open Firmware ROM Image\n"); |
|
goto failed; |
|
case 2: |
|
printk(KERN_INFO "aty128fb: Found HP PA-RISC ROM Image\n"); |
|
goto failed; |
|
default: |
|
printk(KERN_INFO "aty128fb: Found unknown type %d ROM Image\n", |
|
rom_type); |
|
goto failed; |
|
} |
|
anyway: |
|
return bios; |
|
|
|
failed: |
|
pci_unmap_rom(dev, bios); |
|
return NULL; |
|
} |
|
|
|
static void aty128_get_pllinfo(struct aty128fb_par *par, |
|
unsigned char __iomem *bios) |
|
{ |
|
unsigned int bios_hdr; |
|
unsigned int bios_pll; |
|
|
|
bios_hdr = BIOS_IN16(0x48); |
|
bios_pll = BIOS_IN16(bios_hdr + 0x30); |
|
|
|
par->constants.ppll_max = BIOS_IN32(bios_pll + 0x16); |
|
par->constants.ppll_min = BIOS_IN32(bios_pll + 0x12); |
|
par->constants.xclk = BIOS_IN16(bios_pll + 0x08); |
|
par->constants.ref_divider = BIOS_IN16(bios_pll + 0x10); |
|
par->constants.ref_clk = BIOS_IN16(bios_pll + 0x0e); |
|
|
|
DBG("ppll_max %d ppll_min %d xclk %d ref_divider %d ref clock %d\n", |
|
par->constants.ppll_max, par->constants.ppll_min, |
|
par->constants.xclk, par->constants.ref_divider, |
|
par->constants.ref_clk); |
|
|
|
} |
|
|
|
#ifdef CONFIG_X86 |
|
static void __iomem *aty128_find_mem_vbios(struct aty128fb_par *par) |
|
{ |
|
/* I simplified this code as we used to miss the signatures in |
|
* a lot of case. It's now closer to XFree, we just don't check |
|
* for signatures at all... Something better will have to be done |
|
* if we end up having conflicts |
|
*/ |
|
u32 segstart; |
|
unsigned char __iomem *rom_base = NULL; |
|
|
|
for (segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) { |
|
rom_base = ioremap(segstart, 0x10000); |
|
if (rom_base == NULL) |
|
return NULL; |
|
if (readb(rom_base) == 0x55 && readb(rom_base + 1) == 0xaa) |
|
break; |
|
iounmap(rom_base); |
|
rom_base = NULL; |
|
} |
|
return rom_base; |
|
} |
|
#endif |
|
#endif /* ndef(__sparc__) */ |
|
|
|
/* fill in known card constants if pll_block is not available */ |
|
static void aty128_timings(struct aty128fb_par *par) |
|
{ |
|
#ifdef CONFIG_PPC |
|
/* instead of a table lookup, assume OF has properly |
|
* setup the PLL registers and use their values |
|
* to set the XCLK values and reference divider values */ |
|
|
|
u32 x_mpll_ref_fb_div; |
|
u32 xclk_cntl; |
|
u32 Nx, M; |
|
unsigned PostDivSet[] = { 0, 1, 2, 4, 8, 3, 6, 12 }; |
|
#endif |
|
|
|
if (!par->constants.ref_clk) |
|
par->constants.ref_clk = 2950; |
|
|
|
#ifdef CONFIG_PPC |
|
x_mpll_ref_fb_div = aty_ld_pll(X_MPLL_REF_FB_DIV); |
|
xclk_cntl = aty_ld_pll(XCLK_CNTL) & 0x7; |
|
Nx = (x_mpll_ref_fb_div & 0x00ff00) >> 8; |
|
M = x_mpll_ref_fb_div & 0x0000ff; |
|
|
|
par->constants.xclk = round_div((2 * Nx * par->constants.ref_clk), |
|
(M * PostDivSet[xclk_cntl])); |
|
|
|
par->constants.ref_divider = |
|
aty_ld_pll(PPLL_REF_DIV) & PPLL_REF_DIV_MASK; |
|
#endif |
|
|
|
if (!par->constants.ref_divider) { |
|
par->constants.ref_divider = 0x3b; |
|
|
|
aty_st_pll(X_MPLL_REF_FB_DIV, 0x004c4c1e); |
|
aty_pll_writeupdate(par); |
|
} |
|
aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider); |
|
aty_pll_writeupdate(par); |
|
|
|
/* from documentation */ |
|
if (!par->constants.ppll_min) |
|
par->constants.ppll_min = 12500; |
|
if (!par->constants.ppll_max) |
|
par->constants.ppll_max = 25000; /* 23000 on some cards? */ |
|
if (!par->constants.xclk) |
|
par->constants.xclk = 0x1d4d; /* same as mclk */ |
|
|
|
par->constants.fifo_width = 128; |
|
par->constants.fifo_depth = 32; |
|
|
|
switch (aty_ld_le32(MEM_CNTL) & 0x3) { |
|
case 0: |
|
par->mem = &sdr_128; |
|
break; |
|
case 1: |
|
par->mem = &sdr_sgram; |
|
break; |
|
case 2: |
|
par->mem = &ddr_sgram; |
|
break; |
|
default: |
|
par->mem = &sdr_sgram; |
|
} |
|
} |
|
|
|
|
|
|
|
/* |
|
* CRTC programming |
|
*/ |
|
|
|
/* Program the CRTC registers */ |
|
static void aty128_set_crtc(const struct aty128_crtc *crtc, |
|
const struct aty128fb_par *par) |
|
{ |
|
aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl); |
|
aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_total); |
|
aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid); |
|
aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_total); |
|
aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid); |
|
aty_st_le32(CRTC_PITCH, crtc->pitch); |
|
aty_st_le32(CRTC_OFFSET, crtc->offset); |
|
aty_st_le32(CRTC_OFFSET_CNTL, crtc->offset_cntl); |
|
/* Disable ATOMIC updating. Is this the right place? */ |
|
aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~(0x00030000)); |
|
} |
|
|
|
|
|
static int aty128_var_to_crtc(const struct fb_var_screeninfo *var, |
|
struct aty128_crtc *crtc, |
|
const struct aty128fb_par *par) |
|
{ |
|
u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp, dst; |
|
u32 left, right, upper, lower, hslen, vslen, sync, vmode; |
|
u32 h_total, h_disp, h_sync_strt, h_sync_wid, h_sync_pol; |
|
u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync; |
|
u32 depth, bytpp; |
|
u8 mode_bytpp[7] = { 0, 0, 1, 2, 2, 3, 4 }; |
|
|
|
/* input */ |
|
xres = var->xres; |
|
yres = var->yres; |
|
vxres = var->xres_virtual; |
|
vyres = var->yres_virtual; |
|
xoffset = var->xoffset; |
|
yoffset = var->yoffset; |
|
bpp = var->bits_per_pixel; |
|
left = var->left_margin; |
|
right = var->right_margin; |
|
upper = var->upper_margin; |
|
lower = var->lower_margin; |
|
hslen = var->hsync_len; |
|
vslen = var->vsync_len; |
|
sync = var->sync; |
|
vmode = var->vmode; |
|
|
|
if (bpp != 16) |
|
depth = bpp; |
|
else |
|
depth = (var->green.length == 6) ? 16 : 15; |
|
|
|
/* check for mode eligibility |
|
* accept only non interlaced modes */ |
|
if ((vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED) |
|
return -EINVAL; |
|
|
|
/* convert (and round up) and validate */ |
|
xres = (xres + 7) & ~7; |
|
xoffset = (xoffset + 7) & ~7; |
|
|
|
if (vxres < xres + xoffset) |
|
vxres = xres + xoffset; |
|
|
|
if (vyres < yres + yoffset) |
|
vyres = yres + yoffset; |
|
|
|
/* convert depth into ATI register depth */ |
|
dst = depth_to_dst(depth); |
|
|
|
if (dst == -EINVAL) { |
|
printk(KERN_ERR "aty128fb: Invalid depth or RGBA\n"); |
|
return -EINVAL; |
|
} |
|
|
|
/* convert register depth to bytes per pixel */ |
|
bytpp = mode_bytpp[dst]; |
|
|
|
/* make sure there is enough video ram for the mode */ |
|
if ((u32)(vxres * vyres * bytpp) > par->vram_size) { |
|
printk(KERN_ERR "aty128fb: Not enough memory for mode\n"); |
|
return -EINVAL; |
|
} |
|
|
|
h_disp = (xres >> 3) - 1; |
|
h_total = (((xres + right + hslen + left) >> 3) - 1) & 0xFFFFL; |
|
|
|
v_disp = yres - 1; |
|
v_total = (yres + upper + vslen + lower - 1) & 0xFFFFL; |
|
|
|
/* check to make sure h_total and v_total are in range */ |
|
if (((h_total >> 3) - 1) > 0x1ff || (v_total - 1) > 0x7FF) { |
|
printk(KERN_ERR "aty128fb: invalid width ranges\n"); |
|
return -EINVAL; |
|
} |
|
|
|
h_sync_wid = (hslen + 7) >> 3; |
|
if (h_sync_wid == 0) |
|
h_sync_wid = 1; |
|
else if (h_sync_wid > 0x3f) /* 0x3f = max hwidth */ |
|
h_sync_wid = 0x3f; |
|
|
|
h_sync_strt = (h_disp << 3) + right; |
|
|
|
v_sync_wid = vslen; |
|
if (v_sync_wid == 0) |
|
v_sync_wid = 1; |
|
else if (v_sync_wid > 0x1f) /* 0x1f = max vwidth */ |
|
v_sync_wid = 0x1f; |
|
|
|
v_sync_strt = v_disp + lower; |
|
|
|
h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1; |
|
v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1; |
|
|
|
c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0; |
|
|
|
crtc->gen_cntl = 0x3000000L | c_sync | (dst << 8); |
|
|
|
crtc->h_total = h_total | (h_disp << 16); |
|
crtc->v_total = v_total | (v_disp << 16); |
|
|
|
crtc->h_sync_strt_wid = h_sync_strt | (h_sync_wid << 16) | |
|
(h_sync_pol << 23); |
|
crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid << 16) | |
|
(v_sync_pol << 23); |
|
|
|
crtc->pitch = vxres >> 3; |
|
|
|
crtc->offset = 0; |
|
|
|
if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) |
|
crtc->offset_cntl = 0x00010000; |
|
else |
|
crtc->offset_cntl = 0; |
|
|
|
crtc->vxres = vxres; |
|
crtc->vyres = vyres; |
|
crtc->xoffset = xoffset; |
|
crtc->yoffset = yoffset; |
|
crtc->depth = depth; |
|
crtc->bpp = bpp; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int aty128_pix_width_to_var(int pix_width, struct fb_var_screeninfo *var) |
|
{ |
|
|
|
/* fill in pixel info */ |
|
var->red.msb_right = 0; |
|
var->green.msb_right = 0; |
|
var->blue.offset = 0; |
|
var->blue.msb_right = 0; |
|
var->transp.offset = 0; |
|
var->transp.length = 0; |
|
var->transp.msb_right = 0; |
|
switch (pix_width) { |
|
case CRTC_PIX_WIDTH_8BPP: |
|
var->bits_per_pixel = 8; |
|
var->red.offset = 0; |
|
var->red.length = 8; |
|
var->green.offset = 0; |
|
var->green.length = 8; |
|
var->blue.length = 8; |
|
break; |
|
case CRTC_PIX_WIDTH_15BPP: |
|
var->bits_per_pixel = 16; |
|
var->red.offset = 10; |
|
var->red.length = 5; |
|
var->green.offset = 5; |
|
var->green.length = 5; |
|
var->blue.length = 5; |
|
break; |
|
case CRTC_PIX_WIDTH_16BPP: |
|
var->bits_per_pixel = 16; |
|
var->red.offset = 11; |
|
var->red.length = 5; |
|
var->green.offset = 5; |
|
var->green.length = 6; |
|
var->blue.length = 5; |
|
break; |
|
case CRTC_PIX_WIDTH_24BPP: |
|
var->bits_per_pixel = 24; |
|
var->red.offset = 16; |
|
var->red.length = 8; |
|
var->green.offset = 8; |
|
var->green.length = 8; |
|
var->blue.length = 8; |
|
break; |
|
case CRTC_PIX_WIDTH_32BPP: |
|
var->bits_per_pixel = 32; |
|
var->red.offset = 16; |
|
var->red.length = 8; |
|
var->green.offset = 8; |
|
var->green.length = 8; |
|
var->blue.length = 8; |
|
var->transp.offset = 24; |
|
var->transp.length = 8; |
|
break; |
|
default: |
|
printk(KERN_ERR "aty128fb: Invalid pixel width\n"); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int aty128_crtc_to_var(const struct aty128_crtc *crtc, |
|
struct fb_var_screeninfo *var) |
|
{ |
|
u32 xres, yres, left, right, upper, lower, hslen, vslen, sync; |
|
u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid, h_sync_pol; |
|
u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync; |
|
u32 pix_width; |
|
|
|
/* fun with masking */ |
|
h_total = crtc->h_total & 0x1ff; |
|
h_disp = (crtc->h_total >> 16) & 0xff; |
|
h_sync_strt = (crtc->h_sync_strt_wid >> 3) & 0x1ff; |
|
h_sync_dly = crtc->h_sync_strt_wid & 0x7; |
|
h_sync_wid = (crtc->h_sync_strt_wid >> 16) & 0x3f; |
|
h_sync_pol = (crtc->h_sync_strt_wid >> 23) & 0x1; |
|
v_total = crtc->v_total & 0x7ff; |
|
v_disp = (crtc->v_total >> 16) & 0x7ff; |
|
v_sync_strt = crtc->v_sync_strt_wid & 0x7ff; |
|
v_sync_wid = (crtc->v_sync_strt_wid >> 16) & 0x1f; |
|
v_sync_pol = (crtc->v_sync_strt_wid >> 23) & 0x1; |
|
c_sync = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0; |
|
pix_width = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK; |
|
|
|
/* do conversions */ |
|
xres = (h_disp + 1) << 3; |
|
yres = v_disp + 1; |
|
left = ((h_total - h_sync_strt - h_sync_wid) << 3) - h_sync_dly; |
|
right = ((h_sync_strt - h_disp) << 3) + h_sync_dly; |
|
hslen = h_sync_wid << 3; |
|
upper = v_total - v_sync_strt - v_sync_wid; |
|
lower = v_sync_strt - v_disp; |
|
vslen = v_sync_wid; |
|
sync = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) | |
|
(v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) | |
|
(c_sync ? FB_SYNC_COMP_HIGH_ACT : 0); |
|
|
|
aty128_pix_width_to_var(pix_width, var); |
|
|
|
var->xres = xres; |
|
var->yres = yres; |
|
var->xres_virtual = crtc->vxres; |
|
var->yres_virtual = crtc->vyres; |
|
var->xoffset = crtc->xoffset; |
|
var->yoffset = crtc->yoffset; |
|
var->left_margin = left; |
|
var->right_margin = right; |
|
var->upper_margin = upper; |
|
var->lower_margin = lower; |
|
var->hsync_len = hslen; |
|
var->vsync_len = vslen; |
|
var->sync = sync; |
|
var->vmode = FB_VMODE_NONINTERLACED; |
|
|
|
return 0; |
|
} |
|
|
|
static void aty128_set_crt_enable(struct aty128fb_par *par, int on) |
|
{ |
|
if (on) { |
|
aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) | |
|
CRT_CRTC_ON); |
|
aty_st_le32(DAC_CNTL, (aty_ld_le32(DAC_CNTL) | |
|
DAC_PALETTE2_SNOOP_EN)); |
|
} else |
|
aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) & |
|
~CRT_CRTC_ON); |
|
} |
|
|
|
static void aty128_set_lcd_enable(struct aty128fb_par *par, int on) |
|
{ |
|
u32 reg; |
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
struct fb_info *info = pci_get_drvdata(par->pdev); |
|
#endif |
|
|
|
if (on) { |
|
reg = aty_ld_le32(LVDS_GEN_CNTL); |
|
reg |= LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION; |
|
reg &= ~LVDS_DISPLAY_DIS; |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
aty128_bl_set_power(info, FB_BLANK_UNBLANK); |
|
#endif |
|
} else { |
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
aty128_bl_set_power(info, FB_BLANK_POWERDOWN); |
|
#endif |
|
reg = aty_ld_le32(LVDS_GEN_CNTL); |
|
reg |= LVDS_DISPLAY_DIS; |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
mdelay(100); |
|
reg &= ~(LVDS_ON /*| LVDS_EN*/); |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
} |
|
} |
|
|
|
static void aty128_set_pll(struct aty128_pll *pll, |
|
const struct aty128fb_par *par) |
|
{ |
|
u32 div3; |
|
|
|
unsigned char post_conv[] = /* register values for post dividers */ |
|
{ 2, 0, 1, 4, 2, 2, 6, 2, 3, 2, 2, 2, 7 }; |
|
|
|
/* select PPLL_DIV_3 */ |
|
aty_st_le32(CLOCK_CNTL_INDEX, aty_ld_le32(CLOCK_CNTL_INDEX) | (3 << 8)); |
|
|
|
/* reset PLL */ |
|
aty_st_pll(PPLL_CNTL, |
|
aty_ld_pll(PPLL_CNTL) | PPLL_RESET | PPLL_ATOMIC_UPDATE_EN); |
|
|
|
/* write the reference divider */ |
|
aty_pll_wait_readupdate(par); |
|
aty_st_pll(PPLL_REF_DIV, par->constants.ref_divider & 0x3ff); |
|
aty_pll_writeupdate(par); |
|
|
|
div3 = aty_ld_pll(PPLL_DIV_3); |
|
div3 &= ~PPLL_FB3_DIV_MASK; |
|
div3 |= pll->feedback_divider; |
|
div3 &= ~PPLL_POST3_DIV_MASK; |
|
div3 |= post_conv[pll->post_divider] << 16; |
|
|
|
/* write feedback and post dividers */ |
|
aty_pll_wait_readupdate(par); |
|
aty_st_pll(PPLL_DIV_3, div3); |
|
aty_pll_writeupdate(par); |
|
|
|
aty_pll_wait_readupdate(par); |
|
aty_st_pll(HTOTAL_CNTL, 0); /* no horiz crtc adjustment */ |
|
aty_pll_writeupdate(par); |
|
|
|
/* clear the reset, just in case */ |
|
aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~PPLL_RESET); |
|
} |
|
|
|
|
|
static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, |
|
const struct aty128fb_par *par) |
|
{ |
|
const struct aty128_constants c = par->constants; |
|
unsigned char post_dividers[] = {1,2,4,8,3,6,12}; |
|
u32 output_freq; |
|
u32 vclk; /* in .01 MHz */ |
|
int i = 0; |
|
u32 n, d; |
|
|
|
vclk = 100000000 / period_in_ps; /* convert units to 10 kHz */ |
|
|
|
/* adjust pixel clock if necessary */ |
|
if (vclk > c.ppll_max) |
|
vclk = c.ppll_max; |
|
if (vclk * 12 < c.ppll_min) |
|
vclk = c.ppll_min/12; |
|
|
|
/* now, find an acceptable divider */ |
|
for (i = 0; i < ARRAY_SIZE(post_dividers); i++) { |
|
output_freq = post_dividers[i] * vclk; |
|
if (output_freq >= c.ppll_min && output_freq <= c.ppll_max) { |
|
pll->post_divider = post_dividers[i]; |
|
break; |
|
} |
|
} |
|
|
|
if (i == ARRAY_SIZE(post_dividers)) |
|
return -EINVAL; |
|
|
|
/* calculate feedback divider */ |
|
n = c.ref_divider * output_freq; |
|
d = c.ref_clk; |
|
|
|
pll->feedback_divider = round_div(n, d); |
|
pll->vclk = vclk; |
|
|
|
DBG("post %d feedback %d vlck %d output %d ref_divider %d " |
|
"vclk_per: %d\n", pll->post_divider, |
|
pll->feedback_divider, vclk, output_freq, |
|
c.ref_divider, period_in_ps); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int aty128_pll_to_var(const struct aty128_pll *pll, |
|
struct fb_var_screeninfo *var) |
|
{ |
|
var->pixclock = 100000000 / pll->vclk; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static void aty128_set_fifo(const struct aty128_ddafifo *dsp, |
|
const struct aty128fb_par *par) |
|
{ |
|
aty_st_le32(DDA_CONFIG, dsp->dda_config); |
|
aty_st_le32(DDA_ON_OFF, dsp->dda_on_off); |
|
} |
|
|
|
|
|
static int aty128_ddafifo(struct aty128_ddafifo *dsp, |
|
const struct aty128_pll *pll, |
|
u32 depth, |
|
const struct aty128fb_par *par) |
|
{ |
|
const struct aty128_meminfo *m = par->mem; |
|
u32 xclk = par->constants.xclk; |
|
u32 fifo_width = par->constants.fifo_width; |
|
u32 fifo_depth = par->constants.fifo_depth; |
|
s32 x, b, p, ron, roff; |
|
u32 n, d, bpp; |
|
|
|
/* round up to multiple of 8 */ |
|
bpp = (depth+7) & ~7; |
|
|
|
n = xclk * fifo_width; |
|
d = pll->vclk * bpp; |
|
x = round_div(n, d); |
|
|
|
ron = 4 * m->MB + |
|
3 * ((m->Trcd - 2 > 0) ? m->Trcd - 2 : 0) + |
|
2 * m->Trp + |
|
m->Twr + |
|
m->CL + |
|
m->Tr2w + |
|
x; |
|
|
|
DBG("x %x\n", x); |
|
|
|
b = 0; |
|
while (x) { |
|
x >>= 1; |
|
b++; |
|
} |
|
p = b + 1; |
|
|
|
ron <<= (11 - p); |
|
|
|
n <<= (11 - p); |
|
x = round_div(n, d); |
|
roff = x * (fifo_depth - 4); |
|
|
|
if ((ron + m->Rloop) >= roff) { |
|
printk(KERN_ERR "aty128fb: Mode out of range!\n"); |
|
return -EINVAL; |
|
} |
|
|
|
DBG("p: %x rloop: %x x: %x ron: %x roff: %x\n", |
|
p, m->Rloop, x, ron, roff); |
|
|
|
dsp->dda_config = p << 16 | m->Rloop << 20 | x; |
|
dsp->dda_on_off = ron << 16 | roff; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
/* |
|
* This actually sets the video mode. |
|
*/ |
|
static int aty128fb_set_par(struct fb_info *info) |
|
{ |
|
struct aty128fb_par *par = info->par; |
|
u32 config; |
|
int err; |
|
|
|
if ((err = aty128_decode_var(&info->var, par)) != 0) |
|
return err; |
|
|
|
if (par->blitter_may_be_busy) |
|
wait_for_idle(par); |
|
|
|
/* clear all registers that may interfere with mode setting */ |
|
aty_st_le32(OVR_CLR, 0); |
|
aty_st_le32(OVR_WID_LEFT_RIGHT, 0); |
|
aty_st_le32(OVR_WID_TOP_BOTTOM, 0); |
|
aty_st_le32(OV0_SCALE_CNTL, 0); |
|
aty_st_le32(MPP_TB_CONFIG, 0); |
|
aty_st_le32(MPP_GP_CONFIG, 0); |
|
aty_st_le32(SUBPIC_CNTL, 0); |
|
aty_st_le32(VIPH_CONTROL, 0); |
|
aty_st_le32(I2C_CNTL_1, 0); /* turn off i2c */ |
|
aty_st_le32(GEN_INT_CNTL, 0); /* turn off interrupts */ |
|
aty_st_le32(CAP0_TRIG_CNTL, 0); |
|
aty_st_le32(CAP1_TRIG_CNTL, 0); |
|
|
|
aty_st_8(CRTC_EXT_CNTL + 1, 4); /* turn video off */ |
|
|
|
aty128_set_crtc(&par->crtc, par); |
|
aty128_set_pll(&par->pll, par); |
|
aty128_set_fifo(&par->fifo_reg, par); |
|
|
|
config = aty_ld_le32(CNFG_CNTL) & ~3; |
|
|
|
#if defined(__BIG_ENDIAN) |
|
if (par->crtc.bpp == 32) |
|
config |= 2; /* make aperture do 32 bit swapping */ |
|
else if (par->crtc.bpp == 16) |
|
config |= 1; /* make aperture do 16 bit swapping */ |
|
#endif |
|
|
|
aty_st_le32(CNFG_CNTL, config); |
|
aty_st_8(CRTC_EXT_CNTL + 1, 0); /* turn the video back on */ |
|
|
|
info->fix.line_length = (par->crtc.vxres * par->crtc.bpp) >> 3; |
|
info->fix.visual = par->crtc.bpp == 8 ? FB_VISUAL_PSEUDOCOLOR |
|
: FB_VISUAL_DIRECTCOLOR; |
|
|
|
if (par->chip_gen == rage_M3) { |
|
aty128_set_crt_enable(par, par->crt_on); |
|
aty128_set_lcd_enable(par, par->lcd_on); |
|
} |
|
if (par->accel_flags & FB_ACCELF_TEXT) |
|
aty128_init_engine(par); |
|
|
|
#ifdef CONFIG_BOOTX_TEXT |
|
btext_update_display(info->fix.smem_start, |
|
(((par->crtc.h_total>>16) & 0xff)+1)*8, |
|
((par->crtc.v_total>>16) & 0x7ff)+1, |
|
par->crtc.bpp, |
|
par->crtc.vxres*par->crtc.bpp/8); |
|
#endif /* CONFIG_BOOTX_TEXT */ |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* encode/decode the User Defined Part of the Display |
|
*/ |
|
|
|
static int aty128_decode_var(struct fb_var_screeninfo *var, |
|
struct aty128fb_par *par) |
|
{ |
|
int err; |
|
struct aty128_crtc crtc; |
|
struct aty128_pll pll; |
|
struct aty128_ddafifo fifo_reg; |
|
|
|
if ((err = aty128_var_to_crtc(var, &crtc, par))) |
|
return err; |
|
|
|
if ((err = aty128_var_to_pll(var->pixclock, &pll, par))) |
|
return err; |
|
|
|
if ((err = aty128_ddafifo(&fifo_reg, &pll, crtc.depth, par))) |
|
return err; |
|
|
|
par->crtc = crtc; |
|
par->pll = pll; |
|
par->fifo_reg = fifo_reg; |
|
par->accel_flags = var->accel_flags; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int aty128_encode_var(struct fb_var_screeninfo *var, |
|
const struct aty128fb_par *par) |
|
{ |
|
int err; |
|
|
|
if ((err = aty128_crtc_to_var(&par->crtc, var))) |
|
return err; |
|
|
|
if ((err = aty128_pll_to_var(&par->pll, var))) |
|
return err; |
|
|
|
var->nonstd = 0; |
|
var->activate = 0; |
|
|
|
var->height = -1; |
|
var->width = -1; |
|
var->accel_flags = par->accel_flags; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int aty128fb_check_var(struct fb_var_screeninfo *var, |
|
struct fb_info *info) |
|
{ |
|
struct aty128fb_par par; |
|
int err; |
|
|
|
par = *(struct aty128fb_par *)info->par; |
|
if ((err = aty128_decode_var(var, &par)) != 0) |
|
return err; |
|
aty128_encode_var(var, &par); |
|
return 0; |
|
} |
|
|
|
|
|
/* |
|
* Pan or Wrap the Display |
|
*/ |
|
static int aty128fb_pan_display(struct fb_var_screeninfo *var, |
|
struct fb_info *fb) |
|
{ |
|
struct aty128fb_par *par = fb->par; |
|
u32 xoffset, yoffset; |
|
u32 offset; |
|
u32 xres, yres; |
|
|
|
xres = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3; |
|
yres = ((par->crtc.v_total >> 16) & 0x7ff) + 1; |
|
|
|
xoffset = (var->xoffset +7) & ~7; |
|
yoffset = var->yoffset; |
|
|
|
if (xoffset+xres > par->crtc.vxres || yoffset+yres > par->crtc.vyres) |
|
return -EINVAL; |
|
|
|
par->crtc.xoffset = xoffset; |
|
par->crtc.yoffset = yoffset; |
|
|
|
offset = ((yoffset * par->crtc.vxres + xoffset) * (par->crtc.bpp >> 3)) |
|
& ~7; |
|
|
|
if (par->crtc.bpp == 24) |
|
offset += 8 * (offset % 3); /* Must be multiple of 8 and 3 */ |
|
|
|
aty_st_le32(CRTC_OFFSET, offset); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
/* |
|
* Helper function to store a single palette register |
|
*/ |
|
static void aty128_st_pal(u_int regno, u_int red, u_int green, u_int blue, |
|
struct aty128fb_par *par) |
|
{ |
|
if (par->chip_gen == rage_M3) { |
|
aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & |
|
~DAC_PALETTE_ACCESS_CNTL); |
|
} |
|
|
|
aty_st_8(PALETTE_INDEX, regno); |
|
aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue); |
|
} |
|
|
|
static int aty128fb_sync(struct fb_info *info) |
|
{ |
|
struct aty128fb_par *par = info->par; |
|
|
|
if (par->blitter_may_be_busy) |
|
wait_for_idle(par); |
|
return 0; |
|
} |
|
|
|
#ifndef MODULE |
|
static int aty128fb_setup(char *options) |
|
{ |
|
char *this_opt; |
|
|
|
if (!options || !*options) |
|
return 0; |
|
|
|
while ((this_opt = strsep(&options, ",")) != NULL) { |
|
if (!strncmp(this_opt, "lcd:", 4)) { |
|
default_lcd_on = simple_strtoul(this_opt+4, NULL, 0); |
|
continue; |
|
} else if (!strncmp(this_opt, "crt:", 4)) { |
|
default_crt_on = simple_strtoul(this_opt+4, NULL, 0); |
|
continue; |
|
} else if (!strncmp(this_opt, "backlight:", 10)) { |
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
backlight = simple_strtoul(this_opt+10, NULL, 0); |
|
#endif |
|
continue; |
|
} |
|
if(!strncmp(this_opt, "nomtrr", 6)) { |
|
mtrr = false; |
|
continue; |
|
} |
|
#ifdef CONFIG_PPC_PMAC |
|
/* vmode and cmode deprecated */ |
|
if (!strncmp(this_opt, "vmode:", 6)) { |
|
unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0); |
|
if (vmode > 0 && vmode <= VMODE_MAX) |
|
default_vmode = vmode; |
|
continue; |
|
} else if (!strncmp(this_opt, "cmode:", 6)) { |
|
unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0); |
|
switch (cmode) { |
|
case 0: |
|
case 8: |
|
default_cmode = CMODE_8; |
|
break; |
|
case 15: |
|
case 16: |
|
default_cmode = CMODE_16; |
|
break; |
|
case 24: |
|
case 32: |
|
default_cmode = CMODE_32; |
|
break; |
|
} |
|
continue; |
|
} |
|
#endif /* CONFIG_PPC_PMAC */ |
|
mode_option = this_opt; |
|
} |
|
return 0; |
|
} |
|
#endif /* MODULE */ |
|
|
|
/* Backlight */ |
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
#define MAX_LEVEL 0xFF |
|
|
|
static int aty128_bl_get_level_brightness(struct aty128fb_par *par, |
|
int level) |
|
{ |
|
struct fb_info *info = pci_get_drvdata(par->pdev); |
|
int atylevel; |
|
|
|
/* Get and convert the value */ |
|
/* No locking of bl_curve since we read a single value */ |
|
atylevel = MAX_LEVEL - |
|
(info->bl_curve[level] * FB_BACKLIGHT_MAX / MAX_LEVEL); |
|
|
|
if (atylevel < 0) |
|
atylevel = 0; |
|
else if (atylevel > MAX_LEVEL) |
|
atylevel = MAX_LEVEL; |
|
|
|
return atylevel; |
|
} |
|
|
|
/* We turn off the LCD completely instead of just dimming the backlight. |
|
* This provides greater power saving and the display is useless without |
|
* backlight anyway |
|
*/ |
|
#define BACKLIGHT_LVDS_OFF |
|
/* That one prevents proper CRT output with LCD off */ |
|
#undef BACKLIGHT_DAC_OFF |
|
|
|
static int aty128_bl_update_status(struct backlight_device *bd) |
|
{ |
|
struct aty128fb_par *par = bl_get_data(bd); |
|
unsigned int reg = aty_ld_le32(LVDS_GEN_CNTL); |
|
int level; |
|
|
|
if (bd->props.power != FB_BLANK_UNBLANK || |
|
bd->props.fb_blank != FB_BLANK_UNBLANK || |
|
!par->lcd_on) |
|
level = 0; |
|
else |
|
level = bd->props.brightness; |
|
|
|
reg |= LVDS_BL_MOD_EN | LVDS_BLON; |
|
if (level > 0) { |
|
reg |= LVDS_DIGION; |
|
if (!(reg & LVDS_ON)) { |
|
reg &= ~LVDS_BLON; |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
aty_ld_le32(LVDS_GEN_CNTL); |
|
mdelay(10); |
|
reg |= LVDS_BLON; |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
} |
|
reg &= ~LVDS_BL_MOD_LEVEL_MASK; |
|
reg |= (aty128_bl_get_level_brightness(par, level) << |
|
LVDS_BL_MOD_LEVEL_SHIFT); |
|
#ifdef BACKLIGHT_LVDS_OFF |
|
reg |= LVDS_ON | LVDS_EN; |
|
reg &= ~LVDS_DISPLAY_DIS; |
|
#endif |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
#ifdef BACKLIGHT_DAC_OFF |
|
aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & (~DAC_PDWN)); |
|
#endif |
|
} else { |
|
reg &= ~LVDS_BL_MOD_LEVEL_MASK; |
|
reg |= (aty128_bl_get_level_brightness(par, 0) << |
|
LVDS_BL_MOD_LEVEL_SHIFT); |
|
#ifdef BACKLIGHT_LVDS_OFF |
|
reg |= LVDS_DISPLAY_DIS; |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
aty_ld_le32(LVDS_GEN_CNTL); |
|
udelay(10); |
|
reg &= ~(LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION); |
|
#endif |
|
aty_st_le32(LVDS_GEN_CNTL, reg); |
|
#ifdef BACKLIGHT_DAC_OFF |
|
aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PDWN); |
|
#endif |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct backlight_ops aty128_bl_data = { |
|
.update_status = aty128_bl_update_status, |
|
}; |
|
|
|
static void aty128_bl_set_power(struct fb_info *info, int power) |
|
{ |
|
if (info->bl_dev) { |
|
info->bl_dev->props.power = power; |
|
backlight_update_status(info->bl_dev); |
|
} |
|
} |
|
|
|
static void aty128_bl_init(struct aty128fb_par *par) |
|
{ |
|
struct backlight_properties props; |
|
struct fb_info *info = pci_get_drvdata(par->pdev); |
|
struct backlight_device *bd; |
|
char name[12]; |
|
|
|
/* Could be extended to Rage128Pro LVDS output too */ |
|
if (par->chip_gen != rage_M3) |
|
return; |
|
|
|
#ifdef CONFIG_PMAC_BACKLIGHT |
|
if (!pmac_has_backlight_type("ati")) |
|
return; |
|
#endif |
|
|
|
snprintf(name, sizeof(name), "aty128bl%d", info->node); |
|
|
|
memset(&props, 0, sizeof(struct backlight_properties)); |
|
props.type = BACKLIGHT_RAW; |
|
props.max_brightness = FB_BACKLIGHT_LEVELS - 1; |
|
bd = backlight_device_register(name, info->dev, par, &aty128_bl_data, |
|
&props); |
|
if (IS_ERR(bd)) { |
|
info->bl_dev = NULL; |
|
printk(KERN_WARNING "aty128: Backlight registration failed\n"); |
|
goto error; |
|
} |
|
|
|
info->bl_dev = bd; |
|
fb_bl_default_curve(info, 0, |
|
63 * FB_BACKLIGHT_MAX / MAX_LEVEL, |
|
219 * FB_BACKLIGHT_MAX / MAX_LEVEL); |
|
|
|
bd->props.brightness = bd->props.max_brightness; |
|
bd->props.power = FB_BLANK_UNBLANK; |
|
backlight_update_status(bd); |
|
|
|
printk("aty128: Backlight initialized (%s)\n", name); |
|
|
|
return; |
|
|
|
error: |
|
return; |
|
} |
|
|
|
static void aty128_bl_exit(struct backlight_device *bd) |
|
{ |
|
backlight_device_unregister(bd); |
|
printk("aty128: Backlight unloaded\n"); |
|
} |
|
#endif /* CONFIG_FB_ATY128_BACKLIGHT */ |
|
|
|
/* |
|
* Initialisation |
|
*/ |
|
|
|
#ifdef CONFIG_PPC_PMAC__disabled |
|
static void aty128_early_resume(void *data) |
|
{ |
|
struct aty128fb_par *par = data; |
|
|
|
if (!console_trylock()) |
|
return; |
|
pci_restore_state(par->pdev); |
|
aty128_do_resume(par->pdev); |
|
console_unlock(); |
|
} |
|
#endif /* CONFIG_PPC_PMAC */ |
|
|
|
static int aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent) |
|
{ |
|
struct fb_info *info = pci_get_drvdata(pdev); |
|
struct aty128fb_par *par = info->par; |
|
struct fb_var_screeninfo var; |
|
char video_card[50]; |
|
u8 chip_rev; |
|
u32 dac; |
|
|
|
/* Get the chip revision */ |
|
chip_rev = (aty_ld_le32(CNFG_CNTL) >> 16) & 0x1F; |
|
|
|
strcpy(video_card, "Rage128 XX "); |
|
video_card[8] = ent->device >> 8; |
|
video_card[9] = ent->device & 0xFF; |
|
|
|
/* range check to make sure */ |
|
if (ent->driver_data < ARRAY_SIZE(r128_family)) |
|
strlcat(video_card, r128_family[ent->driver_data], |
|
sizeof(video_card)); |
|
|
|
printk(KERN_INFO "aty128fb: %s [chip rev 0x%x] ", video_card, chip_rev); |
|
|
|
if (par->vram_size % (1024 * 1024) == 0) |
|
printk("%dM %s\n", par->vram_size / (1024*1024), par->mem->name); |
|
else |
|
printk("%dk %s\n", par->vram_size / 1024, par->mem->name); |
|
|
|
par->chip_gen = ent->driver_data; |
|
|
|
/* fill in info */ |
|
info->fbops = &aty128fb_ops; |
|
info->flags = FBINFO_FLAG_DEFAULT; |
|
|
|
par->lcd_on = default_lcd_on; |
|
par->crt_on = default_crt_on; |
|
|
|
var = default_var; |
|
#ifdef CONFIG_PPC_PMAC |
|
if (machine_is(powermac)) { |
|
/* Indicate sleep capability */ |
|
if (par->chip_gen == rage_M3) { |
|
pmac_call_feature(PMAC_FTR_DEVICE_CAN_WAKE, NULL, 0, 1); |
|
#if 0 /* Disable the early video resume hack for now as it's causing problems, |
|
* among others we now rely on the PCI core restoring the config space |
|
* for us, which isn't the case with that hack, and that code path causes |
|
* various things to be called with interrupts off while they shouldn't. |
|
* I'm leaving the code in as it can be useful for debugging purposes |
|
*/ |
|
pmac_set_early_video_resume(aty128_early_resume, par); |
|
#endif |
|
} |
|
|
|
/* Find default mode */ |
|
if (mode_option) { |
|
if (!mac_find_mode(&var, info, mode_option, 8)) |
|
var = default_var; |
|
} else { |
|
if (default_vmode <= 0 || default_vmode > VMODE_MAX) |
|
default_vmode = VMODE_1024_768_60; |
|
|
|
/* iMacs need that resolution |
|
* PowerMac2,1 first r128 iMacs |
|
* PowerMac2,2 summer 2000 iMacs |
|
* PowerMac4,1 january 2001 iMacs "flower power" |
|
*/ |
|
if (of_machine_is_compatible("PowerMac2,1") || |
|
of_machine_is_compatible("PowerMac2,2") || |
|
of_machine_is_compatible("PowerMac4,1")) |
|
default_vmode = VMODE_1024_768_75; |
|
|
|
/* iBook SE */ |
|
if (of_machine_is_compatible("PowerBook2,2")) |
|
default_vmode = VMODE_800_600_60; |
|
|
|
/* PowerBook Firewire (Pismo), iBook Dual USB */ |
|
if (of_machine_is_compatible("PowerBook3,1") || |
|
of_machine_is_compatible("PowerBook4,1")) |
|
default_vmode = VMODE_1024_768_60; |
|
|
|
/* PowerBook Titanium */ |
|
if (of_machine_is_compatible("PowerBook3,2")) |
|
default_vmode = VMODE_1152_768_60; |
|
|
|
if (default_cmode > 16) |
|
default_cmode = CMODE_32; |
|
else if (default_cmode > 8) |
|
default_cmode = CMODE_16; |
|
else |
|
default_cmode = CMODE_8; |
|
|
|
if (mac_vmode_to_var(default_vmode, default_cmode, &var)) |
|
var = default_var; |
|
} |
|
} else |
|
#endif /* CONFIG_PPC_PMAC */ |
|
{ |
|
if (mode_option) |
|
if (fb_find_mode(&var, info, mode_option, NULL, |
|
0, &defaultmode, 8) == 0) |
|
var = default_var; |
|
} |
|
|
|
var.accel_flags &= ~FB_ACCELF_TEXT; |
|
// var.accel_flags |= FB_ACCELF_TEXT;/* FIXME Will add accel later */ |
|
|
|
if (aty128fb_check_var(&var, info)) { |
|
printk(KERN_ERR "aty128fb: Cannot set default mode.\n"); |
|
return 0; |
|
} |
|
|
|
/* setup the DAC the way we like it */ |
|
dac = aty_ld_le32(DAC_CNTL); |
|
dac |= (DAC_8BIT_EN | DAC_RANGE_CNTL); |
|
dac |= DAC_MASK; |
|
if (par->chip_gen == rage_M3) |
|
dac |= DAC_PALETTE2_SNOOP_EN; |
|
aty_st_le32(DAC_CNTL, dac); |
|
|
|
/* turn off bus mastering, just in case */ |
|
aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL) | BUS_MASTER_DIS); |
|
|
|
info->var = var; |
|
fb_alloc_cmap(&info->cmap, 256, 0); |
|
|
|
var.activate = FB_ACTIVATE_NOW; |
|
|
|
aty128_init_engine(par); |
|
|
|
par->pdev = pdev; |
|
par->asleep = 0; |
|
par->lock_blank = 0; |
|
|
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
if (backlight) |
|
aty128_bl_init(par); |
|
#endif |
|
|
|
if (register_framebuffer(info) < 0) |
|
return 0; |
|
|
|
fb_info(info, "%s frame buffer device on %s\n", |
|
info->fix.id, video_card); |
|
|
|
return 1; /* success! */ |
|
} |
|
|
|
#ifdef CONFIG_PCI |
|
/* register a card ++ajoshi */ |
|
static int aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
|
{ |
|
unsigned long fb_addr, reg_addr; |
|
struct aty128fb_par *par; |
|
struct fb_info *info; |
|
int err; |
|
#ifndef __sparc__ |
|
void __iomem *bios = NULL; |
|
#endif |
|
|
|
/* Enable device in PCI config */ |
|
if ((err = pci_enable_device(pdev))) { |
|
printk(KERN_ERR "aty128fb: Cannot enable PCI device: %d\n", |
|
err); |
|
return -ENODEV; |
|
} |
|
|
|
fb_addr = pci_resource_start(pdev, 0); |
|
if (!request_mem_region(fb_addr, pci_resource_len(pdev, 0), |
|
"aty128fb FB")) { |
|
printk(KERN_ERR "aty128fb: cannot reserve frame " |
|
"buffer memory\n"); |
|
return -ENODEV; |
|
} |
|
|
|
reg_addr = pci_resource_start(pdev, 2); |
|
if (!request_mem_region(reg_addr, pci_resource_len(pdev, 2), |
|
"aty128fb MMIO")) { |
|
printk(KERN_ERR "aty128fb: cannot reserve MMIO region\n"); |
|
goto err_free_fb; |
|
} |
|
|
|
/* We have the resources. Now virtualize them */ |
|
info = framebuffer_alloc(sizeof(struct aty128fb_par), &pdev->dev); |
|
if (!info) |
|
goto err_free_mmio; |
|
|
|
par = info->par; |
|
|
|
info->pseudo_palette = par->pseudo_palette; |
|
|
|
/* Virtualize mmio region */ |
|
info->fix.mmio_start = reg_addr; |
|
par->regbase = pci_ioremap_bar(pdev, 2); |
|
if (!par->regbase) |
|
goto err_free_info; |
|
|
|
/* Grab memory size from the card */ |
|
// How does this relate to the resource length from the PCI hardware? |
|
par->vram_size = aty_ld_le32(CNFG_MEMSIZE) & 0x03FFFFFF; |
|
|
|
/* Virtualize the framebuffer */ |
|
info->screen_base = ioremap_wc(fb_addr, par->vram_size); |
|
if (!info->screen_base) |
|
goto err_unmap_out; |
|
|
|
/* Set up info->fix */ |
|
info->fix = aty128fb_fix; |
|
info->fix.smem_start = fb_addr; |
|
info->fix.smem_len = par->vram_size; |
|
info->fix.mmio_start = reg_addr; |
|
|
|
/* If we can't test scratch registers, something is seriously wrong */ |
|
if (!register_test(par)) { |
|
printk(KERN_ERR "aty128fb: Can't write to video register!\n"); |
|
goto err_out; |
|
} |
|
|
|
#ifndef __sparc__ |
|
bios = aty128_map_ROM(par, pdev); |
|
#ifdef CONFIG_X86 |
|
if (bios == NULL) |
|
bios = aty128_find_mem_vbios(par); |
|
#endif |
|
if (bios == NULL) |
|
printk(KERN_INFO "aty128fb: BIOS not located, guessing timings.\n"); |
|
else { |
|
printk(KERN_INFO "aty128fb: Rage128 BIOS located\n"); |
|
aty128_get_pllinfo(par, bios); |
|
pci_unmap_rom(pdev, bios); |
|
} |
|
#endif /* __sparc__ */ |
|
|
|
aty128_timings(par); |
|
pci_set_drvdata(pdev, info); |
|
|
|
if (!aty128_init(pdev, ent)) |
|
goto err_out; |
|
|
|
if (mtrr) |
|
par->wc_cookie = arch_phys_wc_add(info->fix.smem_start, |
|
par->vram_size); |
|
return 0; |
|
|
|
err_out: |
|
iounmap(info->screen_base); |
|
err_unmap_out: |
|
iounmap(par->regbase); |
|
err_free_info: |
|
framebuffer_release(info); |
|
err_free_mmio: |
|
release_mem_region(pci_resource_start(pdev, 2), |
|
pci_resource_len(pdev, 2)); |
|
err_free_fb: |
|
release_mem_region(pci_resource_start(pdev, 0), |
|
pci_resource_len(pdev, 0)); |
|
return -ENODEV; |
|
} |
|
|
|
static void aty128_remove(struct pci_dev *pdev) |
|
{ |
|
struct fb_info *info = pci_get_drvdata(pdev); |
|
struct aty128fb_par *par; |
|
|
|
if (!info) |
|
return; |
|
|
|
par = info->par; |
|
|
|
unregister_framebuffer(info); |
|
|
|
#ifdef CONFIG_FB_ATY128_BACKLIGHT |
|
aty128_bl_exit(info->bl_dev); |
|
#endif |
|
|
|
arch_phys_wc_del(par->wc_cookie); |
|
iounmap(par->regbase); |
|
iounmap(info->screen_base); |
|
|
|
release_mem_region(pci_resource_start(pdev, 0), |
|
pci_resource_len(pdev, 0)); |
|
release_mem_region(pci_resource_start(pdev, 2), |
|
pci_resource_len(pdev, 2)); |
|
framebuffer_release(info); |
|
} |
|
#endif /* CONFIG_PCI */ |
|
|
|
|
|
|
|
/* |
|
* Blank the display. |
|
*/ |
|
static int aty128fb_blank(int blank, struct fb_info *fb) |
|
{ |
|
struct aty128fb_par *par = fb->par; |
|
u8 state; |
|
|
|
if (par->lock_blank || par->asleep) |
|
return 0; |
|
|
|
switch (blank) { |
|
case FB_BLANK_NORMAL: |
|
state = 4; |
|
break; |
|
case FB_BLANK_VSYNC_SUSPEND: |
|
state = 6; |
|
break; |
|
case FB_BLANK_HSYNC_SUSPEND: |
|
state = 5; |
|
break; |
|
case FB_BLANK_POWERDOWN: |
|
state = 7; |
|
break; |
|
case FB_BLANK_UNBLANK: |
|
default: |
|
state = 0; |
|
break; |
|
} |
|
aty_st_8(CRTC_EXT_CNTL+1, state); |
|
|
|
if (par->chip_gen == rage_M3) { |
|
aty128_set_crt_enable(par, par->crt_on && !blank); |
|
aty128_set_lcd_enable(par, par->lcd_on && !blank); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* Set a single color register. The values supplied are already |
|
* rounded down to the hardware's capabilities (according to the |
|
* entries in the var structure). Return != 0 for invalid regno. |
|
*/ |
|
static int aty128fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, |
|
u_int transp, struct fb_info *info) |
|
{ |
|
struct aty128fb_par *par = info->par; |
|
|
|
if (regno > 255 |
|
|| (par->crtc.depth == 16 && regno > 63) |
|
|| (par->crtc.depth == 15 && regno > 31)) |
|
return 1; |
|
|
|
red >>= 8; |
|
green >>= 8; |
|
blue >>= 8; |
|
|
|
if (regno < 16) { |
|
int i; |
|
u32 *pal = info->pseudo_palette; |
|
|
|
switch (par->crtc.depth) { |
|
case 15: |
|
pal[regno] = (regno << 10) | (regno << 5) | regno; |
|
break; |
|
case 16: |
|
pal[regno] = (regno << 11) | (regno << 6) | regno; |
|
break; |
|
case 24: |
|
pal[regno] = (regno << 16) | (regno << 8) | regno; |
|
break; |
|
case 32: |
|
i = (regno << 8) | regno; |
|
pal[regno] = (i << 16) | i; |
|
break; |
|
} |
|
} |
|
|
|
if (par->crtc.depth == 16 && regno > 0) { |
|
/* |
|
* With the 5-6-5 split of bits for RGB at 16 bits/pixel, we |
|
* have 32 slots for R and B values but 64 slots for G values. |
|
* Thus the R and B values go in one slot but the G value |
|
* goes in a different slot, and we have to avoid disturbing |
|
* the other fields in the slots we touch. |
|
*/ |
|
par->green[regno] = green; |
|
if (regno < 32) { |
|
par->red[regno] = red; |
|
par->blue[regno] = blue; |
|
aty128_st_pal(regno * 8, red, par->green[regno*2], |
|
blue, par); |
|
} |
|
red = par->red[regno/2]; |
|
blue = par->blue[regno/2]; |
|
regno <<= 2; |
|
} else if (par->crtc.bpp == 16) |
|
regno <<= 3; |
|
aty128_st_pal(regno, red, green, blue, par); |
|
|
|
return 0; |
|
} |
|
|
|
#define ATY_MIRROR_LCD_ON 0x00000001 |
|
#define ATY_MIRROR_CRT_ON 0x00000002 |
|
|
|
/* out param: u32* backlight value: 0 to 15 */ |
|
#define FBIO_ATY128_GET_MIRROR _IOR('@', 1, __u32) |
|
/* in param: u32* backlight value: 0 to 15 */ |
|
#define FBIO_ATY128_SET_MIRROR _IOW('@', 2, __u32) |
|
|
|
static int aty128fb_ioctl(struct fb_info *info, u_int cmd, u_long arg) |
|
{ |
|
struct aty128fb_par *par = info->par; |
|
u32 value; |
|
int rc; |
|
|
|
switch (cmd) { |
|
case FBIO_ATY128_SET_MIRROR: |
|
if (par->chip_gen != rage_M3) |
|
return -EINVAL; |
|
rc = get_user(value, (__u32 __user *)arg); |
|
if (rc) |
|
return rc; |
|
par->lcd_on = (value & 0x01) != 0; |
|
par->crt_on = (value & 0x02) != 0; |
|
if (!par->crt_on && !par->lcd_on) |
|
par->lcd_on = 1; |
|
aty128_set_crt_enable(par, par->crt_on); |
|
aty128_set_lcd_enable(par, par->lcd_on); |
|
return 0; |
|
case FBIO_ATY128_GET_MIRROR: |
|
if (par->chip_gen != rage_M3) |
|
return -EINVAL; |
|
value = (par->crt_on << 1) | par->lcd_on; |
|
return put_user(value, (__u32 __user *)arg); |
|
} |
|
return -EINVAL; |
|
} |
|
|
|
static void aty128_set_suspend(struct aty128fb_par *par, int suspend) |
|
{ |
|
u32 pmgt; |
|
|
|
if (!par->pdev->pm_cap) |
|
return; |
|
|
|
/* Set the chip into the appropriate suspend mode (we use D2, |
|
* D3 would require a complete re-initialisation of the chip, |
|
* including PCI config registers, clocks, AGP configuration, ...) |
|
* |
|
* For resume, the core will have already brought us back to D0 |
|
*/ |
|
if (suspend) { |
|
/* Make sure CRTC2 is reset. Remove that the day we decide to |
|
* actually use CRTC2 and replace it with real code for disabling |
|
* the CRTC2 output during sleep |
|
*/ |
|
aty_st_le32(CRTC2_GEN_CNTL, aty_ld_le32(CRTC2_GEN_CNTL) & |
|
~(CRTC2_EN)); |
|
|
|
/* Set the power management mode to be PCI based */ |
|
/* Use this magic value for now */ |
|
pmgt = 0x0c005407; |
|
aty_st_pll(POWER_MANAGEMENT, pmgt); |
|
(void)aty_ld_pll(POWER_MANAGEMENT); |
|
aty_st_le32(BUS_CNTL1, 0x00000010); |
|
aty_st_le32(MEM_POWER_MISC, 0x0c830000); |
|
msleep(100); |
|
} |
|
} |
|
|
|
static int aty128_pci_suspend_late(struct device *dev, pm_message_t state) |
|
{ |
|
struct pci_dev *pdev = to_pci_dev(dev); |
|
struct fb_info *info = pci_get_drvdata(pdev); |
|
struct aty128fb_par *par = info->par; |
|
|
|
/* We don't do anything but D2, for now we return 0, but |
|
* we may want to change that. How do we know if the BIOS |
|
* can properly take care of D3 ? Also, with swsusp, we |
|
* know we'll be rebooted, ... |
|
*/ |
|
#ifndef CONFIG_PPC_PMAC |
|
/* HACK ALERT ! Once I find a proper way to say to each driver |
|
* individually what will happen with it's PCI slot, I'll change |
|
* that. On laptops, the AGP slot is just unclocked, so D2 is |
|
* expected, while on desktops, the card is powered off |
|
*/ |
|
return 0; |
|
#endif /* CONFIG_PPC_PMAC */ |
|
|
|
if (state.event == pdev->dev.power.power_state.event) |
|
return 0; |
|
|
|
printk(KERN_DEBUG "aty128fb: suspending...\n"); |
|
|
|
console_lock(); |
|
|
|
fb_set_suspend(info, 1); |
|
|
|
/* Make sure engine is reset */ |
|
wait_for_idle(par); |
|
aty128_reset_engine(par); |
|
wait_for_idle(par); |
|
|
|
/* Blank display and LCD */ |
|
aty128fb_blank(FB_BLANK_POWERDOWN, info); |
|
|
|
/* Sleep */ |
|
par->asleep = 1; |
|
par->lock_blank = 1; |
|
|
|
#ifdef CONFIG_PPC_PMAC |
|
/* On powermac, we have hooks to properly suspend/resume AGP now, |
|
* use them here. We'll ultimately need some generic support here, |
|
* but the generic code isn't quite ready for that yet |
|
*/ |
|
pmac_suspend_agp_for_card(pdev); |
|
#endif /* CONFIG_PPC_PMAC */ |
|
|
|
/* We need a way to make sure the fbdev layer will _not_ touch the |
|
* framebuffer before we put the chip to suspend state. On 2.4, I |
|
* used dummy fb ops, 2.5 need proper support for this at the |
|
* fbdev level |
|
*/ |
|
if (state.event != PM_EVENT_ON) |
|
aty128_set_suspend(par, 1); |
|
|
|
console_unlock(); |
|
|
|
pdev->dev.power.power_state = state; |
|
|
|
return 0; |
|
} |
|
|
|
static int __maybe_unused aty128_pci_suspend(struct device *dev) |
|
{ |
|
return aty128_pci_suspend_late(dev, PMSG_SUSPEND); |
|
} |
|
|
|
static int __maybe_unused aty128_pci_hibernate(struct device *dev) |
|
{ |
|
return aty128_pci_suspend_late(dev, PMSG_HIBERNATE); |
|
} |
|
|
|
static int __maybe_unused aty128_pci_freeze(struct device *dev) |
|
{ |
|
return aty128_pci_suspend_late(dev, PMSG_FREEZE); |
|
} |
|
|
|
static int aty128_do_resume(struct pci_dev *pdev) |
|
{ |
|
struct fb_info *info = pci_get_drvdata(pdev); |
|
struct aty128fb_par *par = info->par; |
|
|
|
if (pdev->dev.power.power_state.event == PM_EVENT_ON) |
|
return 0; |
|
|
|
/* PCI state will have been restored by the core, so |
|
* we should be in D0 now with our config space fully |
|
* restored |
|
*/ |
|
|
|
/* Wakeup chip */ |
|
aty128_set_suspend(par, 0); |
|
par->asleep = 0; |
|
|
|
/* Restore display & engine */ |
|
aty128_reset_engine(par); |
|
wait_for_idle(par); |
|
aty128fb_set_par(info); |
|
fb_pan_display(info, &info->var); |
|
fb_set_cmap(&info->cmap, info); |
|
|
|
/* Refresh */ |
|
fb_set_suspend(info, 0); |
|
|
|
/* Unblank */ |
|
par->lock_blank = 0; |
|
aty128fb_blank(0, info); |
|
|
|
#ifdef CONFIG_PPC_PMAC |
|
/* On powermac, we have hooks to properly suspend/resume AGP now, |
|
* use them here. We'll ultimately need some generic support here, |
|
* but the generic code isn't quite ready for that yet |
|
*/ |
|
pmac_resume_agp_for_card(pdev); |
|
#endif /* CONFIG_PPC_PMAC */ |
|
|
|
pdev->dev.power.power_state = PMSG_ON; |
|
|
|
printk(KERN_DEBUG "aty128fb: resumed !\n"); |
|
|
|
return 0; |
|
} |
|
|
|
static int __maybe_unused aty128_pci_resume(struct device *dev) |
|
{ |
|
int rc; |
|
|
|
console_lock(); |
|
rc = aty128_do_resume(to_pci_dev(dev)); |
|
console_unlock(); |
|
|
|
return rc; |
|
} |
|
|
|
|
|
static int aty128fb_init(void) |
|
{ |
|
#ifndef MODULE |
|
char *option = NULL; |
|
|
|
if (fb_get_options("aty128fb", &option)) |
|
return -ENODEV; |
|
aty128fb_setup(option); |
|
#endif |
|
|
|
return pci_register_driver(&aty128fb_driver); |
|
} |
|
|
|
static void __exit aty128fb_exit(void) |
|
{ |
|
pci_unregister_driver(&aty128fb_driver); |
|
} |
|
|
|
module_init(aty128fb_init); |
|
|
|
module_exit(aty128fb_exit); |
|
|
|
MODULE_AUTHOR("(c)1999-2003 Brad Douglas <[email protected]>"); |
|
MODULE_DESCRIPTION("FBDev driver for ATI Rage128 / Pro cards"); |
|
MODULE_LICENSE("GPL"); |
|
module_param(mode_option, charp, 0); |
|
MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" "); |
|
module_param_named(nomtrr, mtrr, invbool, 0); |
|
MODULE_PARM_DESC(nomtrr, "bool: Disable MTRR support (0 or 1=disabled) (default=0)");
|
|
|