litmus-rt.git - The LITMUS^RT kernel.

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author	Linus Torvalds <torvalds@linux-foundation.org>	2011-06-23 00:08:52 -0400
committer	Linus Torvalds <torvalds@linux-foundation.org>	2011-06-23 00:08:52 -0400
commit	68d0080f1e222757c85606d3eaf81b5c4aa7719f (patch)
tree	5f177f7571a56e7dfe3888f67fcc86532be8235c /include/linux/notifier.h
parent	f957db4fcdd8f03e186aa8f041f4049e76ab741c (diff)
parent	a5f76d5eba157bf637beb2dd18026db2917c512e (diff)

Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6

* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PCI / PM: Block races between runtime PM and system sleep PM / Domains: Update documentation PM / Runtime: Handle clocks correctly if CONFIG_PM_RUNTIME is unset PM: Fix async resume following suspend failure PM: Free memory bitmaps if opening /dev/snapshot fails PM: Rename dev_pm_info.in_suspend to is_prepared PM: Update documentation regarding sysdevs PM / Runtime: Update doc: usage count no longer incremented across system PM

Diffstat (limited to 'include/linux/notifier.h')

0 files changed, 0 insertions, 0 deletions

/* * drivers/video/pvr2fb.c * * Frame buffer and fbcon support for the NEC PowerVR2 found within the Sega * Dreamcast. * * Copyright (c) 2001 M. R. Brown <mrbrown@0xd6.org> * Copyright (c) 2001 - 2008 Paul Mundt <lethal@linux-sh.org> * * This driver is mostly based on the excellent amifb and vfb sources. It uses * an odd scheme for converting hardware values to/from framebuffer values, * here are some hacked-up formulas: * * The Dreamcast has screen offsets from each side of its four borders and * the start offsets of the display window. I used these values to calculate * 'pseudo' values (think of them as placeholders) for the fb video mode, so * that when it came time to convert these values back into their hardware * values, I could just add mode- specific offsets to get the correct mode * settings: * * left_margin = diwstart_h - borderstart_h; * right_margin = borderstop_h - (diwstart_h + xres); * upper_margin = diwstart_v - borderstart_v; * lower_margin = borderstop_v - (diwstart_h + yres); * * hsync_len = borderstart_h + (hsync_total - borderstop_h); * vsync_len = borderstart_v + (vsync_total - borderstop_v); * * Then, when it's time to convert back to hardware settings, the only * constants are the borderstart_* offsets, all other values are derived from * the fb video mode: * * // PAL * borderstart_h = 116; * borderstart_v = 44; * ... * borderstop_h = borderstart_h + hsync_total - hsync_len; * ... * diwstart_v = borderstart_v - upper_margin; * * However, in the current implementation, the borderstart values haven't had * the benefit of being fully researched, so some modes may be broken. */ #undef DEBUG #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/mm.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/fb.h> #include <linux/init.h> #include <linux/pci.h> #ifdef CONFIG_SH_DREAMCAST #include <asm/machvec.h> #include <asm/mach/sysasic.h> #endif #ifdef CONFIG_SH_DMA #include <linux/pagemap.h> #include <asm/mach/dma.h> #include <asm/dma.h> #endif #ifdef CONFIG_SH_STORE_QUEUES #include <linux/uaccess.h> #include <asm/cpu/sq.h> #endif #ifndef PCI_DEVICE_ID_NEC_NEON250 # define PCI_DEVICE_ID_NEC_NEON250 0x0067 #endif /* 2D video registers */ #define DISP_BASE par->mmio_base #define DISP_BRDRCOLR (DISP_BASE + 0x40) #define DISP_DIWMODE (DISP_BASE + 0x44) #define DISP_DIWADDRL (DISP_BASE + 0x50) #define DISP_DIWADDRS (DISP_BASE + 0x54) #define DISP_DIWSIZE (DISP_BASE + 0x5c) #define DISP_SYNCCONF (DISP_BASE + 0xd0) #define DISP_BRDRHORZ (DISP_BASE + 0xd4) #define DISP_SYNCSIZE (DISP_BASE + 0xd8) #define DISP_BRDRVERT (DISP_BASE + 0xdc) #define DISP_DIWCONF (DISP_BASE + 0xe8) #define DISP_DIWHSTRT (DISP_BASE + 0xec) #define DISP_DIWVSTRT (DISP_BASE + 0xf0) #define DISP_PIXDEPTH (DISP_BASE + 0x108) /* Pixel clocks, one for TV output, doubled for VGA output */ #define TV_CLK 74239 #define VGA_CLK 37119 /* This is for 60Hz - the VTOTAL is doubled for interlaced modes */ #define PAL_HTOTAL 863 #define PAL_VTOTAL 312 #define NTSC_HTOTAL 857 #define NTSC_VTOTAL 262 /* Supported cable types */ enum { CT_VGA, CT_NONE, CT_RGB, CT_COMPOSITE }; /* Supported video output types */ enum { VO_PAL, VO_NTSC, VO_VGA }; /* Supported palette types */ enum { PAL_ARGB1555, PAL_RGB565, PAL_ARGB4444, PAL_ARGB8888 }; struct pvr2_params { unsigned int val; char *name; }; static struct pvr2_params cables[] __devinitdata = { { CT_VGA, "VGA" }, { CT_RGB, "RGB" }, { CT_COMPOSITE, "COMPOSITE" }, }; static struct pvr2_params outputs[] __devinitdata = { { VO_PAL, "PAL" }, { VO_NTSC, "NTSC" }, { VO_VGA, "VGA" }, }; /* * This describes the current video mode */ static struct pvr2fb_par { unsigned int hsync_total; /* Clocks/line */ unsigned int vsync_total; /* Lines/field */ unsigned int borderstart_h; unsigned int borderstop_h; unsigned int borderstart_v; unsigned int borderstop_v; unsigned int diwstart_h; /* Horizontal offset of the display field */ unsigned int diwstart_v; /* Vertical offset of the display field, for interlaced modes, this is the long field */ unsigned long disp_start; /* Address of image within VRAM */ unsigned char is_interlaced; /* Is the display interlaced? */ unsigned char is_doublescan; /* Are scanlines output twice? (doublescan) */ unsigned char is_lowres; /* Is horizontal pixel-doubling enabled? */ unsigned long mmio_base; /* MMIO base */ u32 palette[16]; } *currentpar; static struct fb_info *fb_info; static struct fb_fix_screeninfo pvr2_fix __devinitdata = { .id = "NEC PowerVR2", .type = FB_TYPE_PACKED_PIXELS, .visual = FB_VISUAL_TRUECOLOR, .ypanstep = 1, .ywrapstep = 1, .accel = FB_ACCEL_NONE, }; static struct fb_var_screeninfo pvr2_var __devinitdata = { .xres = 640, .yres = 480, .xres_virtual = 640, .yres_virtual = 480, .bits_per_pixel =16, .red = { 11, 5, 0 }, .green = { 5, 6, 0 }, .blue = { 0, 5, 0 }, .activate = FB_ACTIVATE_NOW, .height = -1, .width = -1, .vmode = FB_VMODE_NONINTERLACED, }; static int cable_type = CT_VGA; static int video_output = VO_VGA; static int nopan = 0; static int nowrap = 1; /* * We do all updating, blanking, etc. during the vertical retrace period */ static unsigned int do_vmode_full = 0; /* Change the video mode */ static unsigned int do_vmode_pan = 0; /* Update the video mode */ static short do_blank = 0; /* (Un)Blank the screen */ static unsigned int is_blanked = 0; /* Is the screen blanked? */ #ifdef CONFIG_SH_STORE_QUEUES static unsigned long pvr2fb_map; #endif #ifdef CONFIG_SH_DMA static unsigned int shdma = PVR2_CASCADE_CHAN; static unsigned int pvr2dma = ONCHIP_NR_DMA_CHANNELS; #endif static int pvr2fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green, unsigned int blue, unsigned int transp, struct fb_info *info); static int pvr2fb_blank(int blank, struct fb_info *info); static unsigned long get_line_length(int xres_virtual, int bpp); static void set_color_bitfields(struct fb_var_screeninfo *var); static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info); static int pvr2fb_set_par(struct fb_info *info); static void pvr2_update_display(struct fb_info *info); static void pvr2_init_display(struct fb_info *info); static void pvr2_do_blank(void); static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id); static int pvr2_init_cable(void); static int pvr2_get_param(const struct pvr2_params *p, const char *s, int val, int size); #ifdef CONFIG_SH_DMA static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, size_t count, loff_t *ppos); #endif static struct fb_ops pvr2fb_ops = { .owner = THIS_MODULE, .fb_setcolreg = pvr2fb_setcolreg, .fb_blank = pvr2fb_blank, .fb_check_var = pvr2fb_check_var, .fb_set_par = pvr2fb_set_par, #ifdef CONFIG_SH_DMA .fb_write = pvr2fb_write, #endif .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, }; static struct fb_videomode pvr2_modedb[] __devinitdata = { /* * Broadcast video modes (PAL and NTSC). I'm unfamiliar with * PAL-M and PAL-N, but from what I've read both modes parallel PAL and * NTSC, so it shouldn't be a problem (I hope). */ { /* 640x480 @ 60Hz interlaced (NTSC) */ "ntsc_640x480i", 60, 640, 480, TV_CLK, 38, 33, 0, 18, 146, 26, FB_SYNC_BROADCAST, FB_VMODE_INTERLACED | FB_VMODE_YWRAP }, { /* 640x240 @ 60Hz (NTSC) */ /* XXX: Broken! Don't use... */ "ntsc_640x240", 60, 640, 240, TV_CLK, 38, 33, 0, 0, 146, 22, FB_SYNC_BROADCAST, FB_VMODE_YWRAP }, { /* 640x480 @ 60hz (VGA) */ "vga_640x480", 60, 640, 480, VGA_CLK, 38, 33, 0, 18, 146, 26, 0, FB_VMODE_YWRAP }, }; #define NUM_TOTAL_MODES ARRAY_SIZE(pvr2_modedb) #define DEFMODE_NTSC 0 #define DEFMODE_PAL 0 #define DEFMODE_VGA 2 static int defmode = DEFMODE_NTSC; static char *mode_option __devinitdata = NULL; static inline void pvr2fb_set_pal_type(unsigned int type) { struct pvr2fb_par *par = (struct pvr2fb_par *)fb_info->par; fb_writel(type, par->mmio_base + 0x108); } static inline void pvr2fb_set_pal_entry(struct pvr2fb_par *par, unsigned int regno, unsigned int val) { fb_writel(val, par->mmio_base + 0x1000 + (4 * regno)); } static int pvr2fb_blank(int blank, struct fb_info *info) { do_blank = blank ? blank : -1; return 0; } static inline unsigned long get_line_length(int xres_virtual, int bpp) { return (unsigned long)((((xres_virtual*bpp)+31)&~31) >> 3); }


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