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authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 17:31:38 +0400
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 09:10:19 +0400
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/pvr2fb.c
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
downloadlinux-f7018c21350204c4cf628462f229d44d03545254.tar.xz
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/pvr2fb.c')
-rw-r--r--drivers/video/pvr2fb.c1142
1 files changed, 0 insertions, 1142 deletions
diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c
deleted file mode 100644
index 167cffff3d4e..000000000000
--- a/drivers/video/pvr2fb.c
+++ /dev/null
@@ -1,1142 +0,0 @@
-/*
- * 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 <mach-dreamcast/mach/sysasic.h>
-#endif
-
-#ifdef CONFIG_PVR2_DMA
-#include <linux/pagemap.h>
-#include <mach/dma.h>
-#include <asm/dma.h>
-#endif
-
-#ifdef CONFIG_SH_STORE_QUEUES
-#include <linux/uaccess.h>
-#include <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[] = {
- { CT_VGA, "VGA" }, { CT_RGB, "RGB" }, { CT_COMPOSITE, "COMPOSITE" },
-};
-
-static struct pvr2_params outputs[] = {
- { 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 = {
- .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 = {
- .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_PVR2_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_PVR2_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_PVR2_DMA
- .fb_write = pvr2fb_write,
-#endif
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
-};
-
-static struct fb_videomode pvr2_modedb[] = {
- /*
- * 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 = 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);
-}
-
-static void set_color_bitfields(struct fb_var_screeninfo *var)
-{
- switch (var->bits_per_pixel) {
- case 16: /* RGB 565 */
- pvr2fb_set_pal_type(PAL_RGB565);
- var->red.offset = 11; var->red.length = 5;
- var->green.offset = 5; var->green.length = 6;
- var->blue.offset = 0; var->blue.length = 5;
- var->transp.offset = 0; var->transp.length = 0;
- break;
- case 24: /* RGB 888 */
- var->red.offset = 16; var->red.length = 8;
- var->green.offset = 8; var->green.length = 8;
- var->blue.offset = 0; var->blue.length = 8;
- var->transp.offset = 0; var->transp.length = 0;
- break;
- case 32: /* ARGB 8888 */
- pvr2fb_set_pal_type(PAL_ARGB8888);
- var->red.offset = 16; var->red.length = 8;
- var->green.offset = 8; var->green.length = 8;
- var->blue.offset = 0; var->blue.length = 8;
- var->transp.offset = 24; var->transp.length = 8;
- break;
- }
-}
-
-static int pvr2fb_setcolreg(unsigned int regno, unsigned int red,
- unsigned int green, unsigned int blue,
- unsigned int transp, struct fb_info *info)
-{
- struct pvr2fb_par *par = (struct pvr2fb_par *)info->par;
- unsigned int tmp;
-
- if (regno > info->cmap.len)
- return 1;
-
- /*
- * We only support the hardware palette for 16 and 32bpp. It's also
- * expected that the palette format has been set by the time we get
- * here, so we don't waste time setting it again.
- */
- switch (info->var.bits_per_pixel) {
- case 16: /* RGB 565 */
- tmp = (red & 0xf800) |
- ((green & 0xfc00) >> 5) |
- ((blue & 0xf800) >> 11);
-
- pvr2fb_set_pal_entry(par, regno, tmp);
- break;
- case 24: /* RGB 888 */
- red >>= 8; green >>= 8; blue >>= 8;
- tmp = (red << 16) | (green << 8) | blue;
- break;
- case 32: /* ARGB 8888 */
- red >>= 8; green >>= 8; blue >>= 8;
- tmp = (transp << 24) | (red << 16) | (green << 8) | blue;
-
- pvr2fb_set_pal_entry(par, regno, tmp);
- break;
- default:
- pr_debug("Invalid bit depth %d?!?\n", info->var.bits_per_pixel);
- return 1;
- }
-
- if (regno < 16)
- ((u32*)(info->pseudo_palette))[regno] = tmp;
-
- return 0;
-}
-
-static int pvr2fb_set_par(struct fb_info *info)
-{
- struct pvr2fb_par *par = (struct pvr2fb_par *)info->par;
- struct fb_var_screeninfo *var = &info->var;
- unsigned long line_length;
- unsigned int vtotal;
-
- /*
- * XXX: It's possible that a user could use a VGA box, change the cable
- * type in hardware (i.e. switch from VGA<->composite), then change
- * modes (i.e. switching to another VT). If that happens we should
- * automagically change the output format to cope, but currently I
- * don't have a VGA box to make sure this works properly.
- */
- cable_type = pvr2_init_cable();
- if (cable_type == CT_VGA && video_output != VO_VGA)
- video_output = VO_VGA;
-
- var->vmode &= FB_VMODE_MASK;
- if (var->vmode & FB_VMODE_INTERLACED && video_output != VO_VGA)
- par->is_interlaced = 1;
- /*
- * XXX: Need to be more creative with this (i.e. allow doublecan for
- * PAL/NTSC output).
- */
- if (var->vmode & FB_VMODE_DOUBLE && video_output == VO_VGA)
- par->is_doublescan = 1;
-
- par->hsync_total = var->left_margin + var->xres + var->right_margin +
- var->hsync_len;
- par->vsync_total = var->upper_margin + var->yres + var->lower_margin +
- var->vsync_len;
-
- if (var->sync & FB_SYNC_BROADCAST) {
- vtotal = par->vsync_total;
- if (par->is_interlaced)
- vtotal /= 2;
- if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) {
- /* XXX: Check for start values here... */
- /* XXX: Check hardware for PAL-compatibility */
- par->borderstart_h = 116;
- par->borderstart_v = 44;
- } else {
- /* NTSC video output */
- par->borderstart_h = 126;
- par->borderstart_v = 18;
- }
- } else {
- /* VGA mode */
- /* XXX: What else needs to be checked? */
- /*
- * XXX: We have a little freedom in VGA modes, what ranges
- * should be here (i.e. hsync/vsync totals, etc.)?
- */
- par->borderstart_h = 126;
- par->borderstart_v = 40;
- }
-
- /* Calculate the remainding offsets */
- par->diwstart_h = par->borderstart_h + var->left_margin;
- par->diwstart_v = par->borderstart_v + var->upper_margin;
- par->borderstop_h = par->diwstart_h + var->xres +
- var->right_margin;
- par->borderstop_v = par->diwstart_v + var->yres +
- var->lower_margin;
-
- if (!par->is_interlaced)
- par->borderstop_v /= 2;
- if (info->var.xres < 640)
- par->is_lowres = 1;
-
- line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);
- par->disp_start = info->fix.smem_start + (line_length * var->yoffset) * line_length;
- info->fix.line_length = line_length;
- return 0;
-}
-
-static int pvr2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
-{
- struct pvr2fb_par *par = (struct pvr2fb_par *)info->par;
- unsigned int vtotal, hsync_total;
- unsigned long line_length;
-
- if (var->pixclock != TV_CLK && var->pixclock != VGA_CLK) {
- pr_debug("Invalid pixclock value %d\n", var->pixclock);
- return -EINVAL;
- }
-
- if (var->xres < 320)
- var->xres = 320;
- if (var->yres < 240)
- var->yres = 240;
- if (var->xres_virtual < var->xres)
- var->xres_virtual = var->xres;
- if (var->yres_virtual < var->yres)
- var->yres_virtual = var->yres;
-
- if (var->bits_per_pixel <= 16)
- var->bits_per_pixel = 16;
- else if (var->bits_per_pixel <= 24)
- var->bits_per_pixel = 24;
- else if (var->bits_per_pixel <= 32)
- var->bits_per_pixel = 32;
-
- set_color_bitfields(var);
-
- if (var->vmode & FB_VMODE_YWRAP) {
- if (var->xoffset || var->yoffset < 0 ||
- var->yoffset >= var->yres_virtual) {
- var->xoffset = var->yoffset = 0;
- } else {
- if (var->xoffset > var->xres_virtual - var->xres ||
- var->yoffset > var->yres_virtual - var->yres ||
- var->xoffset < 0 || var->yoffset < 0)
- var->xoffset = var->yoffset = 0;
- }
- } else {
- var->xoffset = var->yoffset = 0;
- }
-
- /*
- * XXX: Need to be more creative with this (i.e. allow doublecan for
- * PAL/NTSC output).
- */
- if (var->yres < 480 && video_output == VO_VGA)
- var->vmode |= FB_VMODE_DOUBLE;
-
- if (video_output != VO_VGA) {
- var->sync |= FB_SYNC_BROADCAST;
- var->vmode |= FB_VMODE_INTERLACED;
- } else {
- var->sync &= ~FB_SYNC_BROADCAST;
- var->vmode &= ~FB_VMODE_INTERLACED;
- var->vmode |= FB_VMODE_NONINTERLACED;
- }
-
- if ((var->activate & FB_ACTIVATE_MASK) != FB_ACTIVATE_TEST) {
- var->right_margin = par->borderstop_h -
- (par->diwstart_h + var->xres);
- var->left_margin = par->diwstart_h - par->borderstart_h;
- var->hsync_len = par->borderstart_h +
- (par->hsync_total - par->borderstop_h);
-
- var->upper_margin = par->diwstart_v - par->borderstart_v;
- var->lower_margin = par->borderstop_v -
- (par->diwstart_v + var->yres);
- var->vsync_len = par->borderstop_v +
- (par->vsync_total - par->borderstop_v);
- }
-
- hsync_total = var->left_margin + var->xres + var->right_margin +
- var->hsync_len;
- vtotal = var->upper_margin + var->yres + var->lower_margin +
- var->vsync_len;
-
- if (var->sync & FB_SYNC_BROADCAST) {
- if (var->vmode & FB_VMODE_INTERLACED)
- vtotal /= 2;
- if (vtotal > (PAL_VTOTAL + NTSC_VTOTAL)/2) {
- /* PAL video output */
- /* XXX: Should be using a range here ... ? */
- if (hsync_total != PAL_HTOTAL) {
- pr_debug("invalid hsync total for PAL\n");
- return -EINVAL;
- }
- } else {
- /* NTSC video output */
- if (hsync_total != NTSC_HTOTAL) {
- pr_debug("invalid hsync total for NTSC\n");
- return -EINVAL;
- }
- }
- }
-
- /* Check memory sizes */
- line_length = get_line_length(var->xres_virtual, var->bits_per_pixel);
- if (line_length * var->yres_virtual > info->fix.smem_len)
- return -ENOMEM;
-
- return 0;
-}
-
-static void pvr2_update_display(struct fb_info *info)
-{
- struct pvr2fb_par *par = (struct pvr2fb_par *) info->par;
- struct fb_var_screeninfo *var = &info->var;
-
- /* Update the start address of the display image */
- fb_writel(par->disp_start, DISP_DIWADDRL);
- fb_writel(par->disp_start +
- get_line_length(var->xoffset+var->xres, var->bits_per_pixel),
- DISP_DIWADDRS);
-}
-
-/*
- * Initialize the video mode. Currently, the 16bpp and 24bpp modes aren't
- * very stable. It's probably due to the fact that a lot of the 2D video
- * registers are still undocumented.
- */
-
-static void pvr2_init_display(struct fb_info *info)
-{
- struct pvr2fb_par *par = (struct pvr2fb_par *) info->par;
- struct fb_var_screeninfo *var = &info->var;
- unsigned int diw_height, diw_width, diw_modulo = 1;
- unsigned int bytesperpixel = var->bits_per_pixel >> 3;
-
- /* hsync and vsync totals */
- fb_writel((par->vsync_total << 16) | par->hsync_total, DISP_SYNCSIZE);
-
- /* column height, modulo, row width */
- /* since we're "panning" within vram, we need to offset things based
- * on the offset from the virtual x start to our real gfx. */
- if (video_output != VO_VGA && par->is_interlaced)
- diw_modulo += info->fix.line_length / 4;
- diw_height = (par->is_interlaced ? var->yres / 2 : var->yres);
- diw_width = get_line_length(var->xres, var->bits_per_pixel) / 4;
- fb_writel((diw_modulo << 20) | (--diw_height << 10) | --diw_width,
- DISP_DIWSIZE);
-
- /* display address, long and short fields */
- fb_writel(par->disp_start, DISP_DIWADDRL);
- fb_writel(par->disp_start +
- get_line_length(var->xoffset+var->xres, var->bits_per_pixel),
- DISP_DIWADDRS);
-
- /* border horizontal, border vertical, border color */
- fb_writel((par->borderstart_h << 16) | par->borderstop_h, DISP_BRDRHORZ);
- fb_writel((par->borderstart_v << 16) | par->borderstop_v, DISP_BRDRVERT);
- fb_writel(0, DISP_BRDRCOLR);
-
- /* display window start position */
- fb_writel(par->diwstart_h, DISP_DIWHSTRT);
- fb_writel((par->diwstart_v << 16) | par->diwstart_v, DISP_DIWVSTRT);
-
- /* misc. settings */
- fb_writel((0x16 << 16) | par->is_lowres, DISP_DIWCONF);
-
- /* clock doubler (for VGA), scan doubler, display enable */
- fb_writel(((video_output == VO_VGA) << 23) |
- (par->is_doublescan << 1) | 1, DISP_DIWMODE);
-
- /* bits per pixel */
- fb_writel(fb_readl(DISP_DIWMODE) | (--bytesperpixel << 2), DISP_DIWMODE);
- fb_writel(bytesperpixel << 2, DISP_PIXDEPTH);
-
- /* video enable, color sync, interlace,
- * hsync and vsync polarity (currently unused) */
- fb_writel(0x100 | ((par->is_interlaced /*|4*/) << 4), DISP_SYNCCONF);
-}
-
-/* Simulate blanking by making the border cover the entire screen */
-
-#define BLANK_BIT (1<<3)
-
-static void pvr2_do_blank(void)
-{
- struct pvr2fb_par *par = currentpar;
- unsigned long diwconf;
-
- diwconf = fb_readl(DISP_DIWCONF);
- if (do_blank > 0)
- fb_writel(diwconf | BLANK_BIT, DISP_DIWCONF);
- else
- fb_writel(diwconf & ~BLANK_BIT, DISP_DIWCONF);
-
- is_blanked = do_blank > 0 ? do_blank : 0;
-}
-
-static irqreturn_t pvr2fb_interrupt(int irq, void *dev_id)
-{
- struct fb_info *info = dev_id;
-
- if (do_vmode_pan || do_vmode_full)
- pvr2_update_display(info);
- if (do_vmode_full)
- pvr2_init_display(info);
- if (do_vmode_pan)
- do_vmode_pan = 0;
- if (do_vmode_full)
- do_vmode_full = 0;
- if (do_blank) {
- pvr2_do_blank();
- do_blank = 0;
- }
- return IRQ_HANDLED;
-}
-
-/*
- * Determine the cable type and initialize the cable output format. Don't do
- * anything if the cable type has been overidden (via "cable:XX").
- */
-
-#define PCTRA 0xff80002c
-#define PDTRA 0xff800030
-#define VOUTC 0xa0702c00
-
-static int pvr2_init_cable(void)
-{
- if (cable_type < 0) {
- fb_writel((fb_readl(PCTRA) & 0xfff0ffff) | 0x000a0000,
- PCTRA);
- cable_type = (fb_readw(PDTRA) >> 8) & 3;
- }
-
- /* Now select the output format (either composite or other) */
- /* XXX: Save the previous val first, as this reg is also AICA
- related */
- if (cable_type == CT_COMPOSITE)
- fb_writel(3 << 8, VOUTC);
- else if (cable_type == CT_RGB)
- fb_writel(1 << 9, VOUTC);
- else
- fb_writel(0, VOUTC);
-
- return cable_type;
-}
-
-#ifdef CONFIG_PVR2_DMA
-static ssize_t pvr2fb_write(struct fb_info *info, const char *buf,
- size_t count, loff_t *ppos)
-{
- unsigned long dst, start, end, len;
- unsigned int nr_pages;
- struct page **pages;
- int ret, i;
-
- nr_pages = (count + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
- pages = kmalloc(nr_pages * sizeof(struct page *), GFP_KERNEL);
- if (!pages)
- return -ENOMEM;
-
- down_read(&current->mm->mmap_sem);
- ret = get_user_pages(current, current->mm, (unsigned long)buf,
- nr_pages, WRITE, 0, pages, NULL);
- up_read(&current->mm->mmap_sem);
-
- if (ret < nr_pages) {
- nr_pages = ret;
- ret = -EINVAL;
- goto out_unmap;
- }
-
- dma_configure_channel(shdma, 0x12c1);
-
- dst = (unsigned long)fb_info->screen_base + *ppos;
- start = (unsigned long)page_address(pages[0]);
- end = (unsigned long)page_address(pages[nr_pages]);
- len = nr_pages << PAGE_SHIFT;
-
- /* Half-assed contig check */
- if (start + len == end) {
- /* As we do this in one shot, it's either all or nothing.. */
- if ((*ppos + len) > fb_info->fix.smem_len) {
- ret = -ENOSPC;
- goto out_unmap;
- }
-
- dma_write(shdma, start, 0, len);
- dma_write(pvr2dma, 0, dst, len);
- dma_wait_for_completion(pvr2dma);
-
- goto out;
- }
-
- /* Not contiguous, writeout per-page instead.. */
- for (i = 0; i < nr_pages; i++, dst += PAGE_SIZE) {
- if ((*ppos + (i << PAGE_SHIFT)) > fb_info->fix.smem_len) {
- ret = -ENOSPC;
- goto out_unmap;
- }
-
- dma_write_page(shdma, (unsigned long)page_address(pages[i]), 0);
- dma_write_page(pvr2dma, 0, dst);
- dma_wait_for_completion(pvr2dma);
- }
-
-out:
- *ppos += count;
- ret = count;
-
-out_unmap:
- for (i = 0; i < nr_pages; i++)
- page_cache_release(pages[i]);
-
- kfree(pages);
-
- return ret;
-}
-#endif /* CONFIG_PVR2_DMA */
-
-/**
- * pvr2fb_common_init
- *
- * Common init code for the PVR2 chips.
- *
- * This mostly takes care of the common aspects of the fb setup and
- * registration. It's expected that the board-specific init code has
- * already setup pvr2_fix with something meaningful at this point.
- *
- * Device info reporting is also done here, as well as picking a sane
- * default from the modedb. For board-specific modelines, simply define
- * a per-board modedb.
- *
- * Also worth noting is that the cable and video output types are likely
- * always going to be VGA for the PCI-based PVR2 boards, but we leave this
- * in for flexibility anyways. Who knows, maybe someone has tv-out on a
- * PCI-based version of these things ;-)
- */
-static int pvr2fb_common_init(void)
-{
- struct pvr2fb_par *par = currentpar;
- unsigned long modememused, rev;
-
- fb_info->screen_base = ioremap_nocache(pvr2_fix.smem_start,
- pvr2_fix.smem_len);
-
- if (!fb_info->screen_base) {
- printk(KERN_ERR "pvr2fb: Failed to remap smem space\n");
- goto out_err;
- }
-
- par->mmio_base = (unsigned long)ioremap_nocache(pvr2_fix.mmio_start,
- pvr2_fix.mmio_len);
- if (!par->mmio_base) {
- printk(KERN_ERR "pvr2fb: Failed to remap mmio space\n");
- goto out_err;
- }
-
- fb_memset(fb_info->screen_base, 0, pvr2_fix.smem_len);
-
- pvr2_fix.ypanstep = nopan ? 0 : 1;
- pvr2_fix.ywrapstep = nowrap ? 0 : 1;
-
- fb_info->fbops = &pvr2fb_ops;
- fb_info->fix = pvr2_fix;
- fb_info->par = currentpar;
- fb_info->pseudo_palette = currentpar->palette;
- fb_info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
-
- if (video_output == VO_VGA)
- defmode = DEFMODE_VGA;
-
- if (!mode_option)
- mode_option = "640x480@60";
-
- if (!fb_find_mode(&fb_info->var, fb_info, mode_option, pvr2_modedb,
- NUM_TOTAL_MODES, &pvr2_modedb[defmode], 16))
- fb_info->var = pvr2_var;
-
- fb_alloc_cmap(&fb_info->cmap, 256, 0);
-
- if (register_framebuffer(fb_info) < 0)
- goto out_err;
- /*Must write PIXDEPTH to register before anything is displayed - so force init */
- pvr2_init_display(fb_info);
-
- modememused = get_line_length(fb_info->var.xres_virtual,
- fb_info->var.bits_per_pixel);
- modememused *= fb_info->var.yres_virtual;
-
- rev = fb_readl(par->mmio_base + 0x04);
-
- fb_info(fb_info, "%s (rev %ld.%ld) frame buffer device, using %ldk/%ldk of video memory\n",
- fb_info->fix.id, (rev >> 4) & 0x0f, rev & 0x0f,
- modememused >> 10,
- (unsigned long)(fb_info->fix.smem_len >> 10));
- fb_info(fb_info, "Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n",
- fb_info->var.xres, fb_info->var.yres,
- fb_info->var.bits_per_pixel,
- get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel),
- (char *)pvr2_get_param(cables, NULL, cable_type, 3),
- (char *)pvr2_get_param(outputs, NULL, video_output, 3));
-
-#ifdef CONFIG_SH_STORE_QUEUES
- fb_notice(fb_info, "registering with SQ API\n");
-
- pvr2fb_map = sq_remap(fb_info->fix.smem_start, fb_info->fix.smem_len,
- fb_info->fix.id, PAGE_SHARED);
-
- fb_notice(fb_info, "Mapped video memory to SQ addr 0x%lx\n",
- pvr2fb_map);
-#endif
-
- return 0;
-
-out_err:
- if (fb_info->screen_base)
- iounmap(fb_info->screen_base);
- if (par->mmio_base)
- iounmap((void *)par->mmio_base);
-
- return -ENXIO;
-}
-
-#ifdef CONFIG_SH_DREAMCAST
-static int __init pvr2fb_dc_init(void)
-{
- if (!mach_is_dreamcast())
- return -ENXIO;
-
- /* Make a guess at the monitor based on the attached cable */
- if (pvr2_init_cable() == CT_VGA) {
- fb_info->monspecs.hfmin = 30000;
- fb_info->monspecs.hfmax = 70000;
- fb_info->monspecs.vfmin = 60;
- fb_info->monspecs.vfmax = 60;
- } else {
- /* Not VGA, using a TV (taken from acornfb) */
- fb_info->monspecs.hfmin = 15469;
- fb_info->monspecs.hfmax = 15781;
- fb_info->monspecs.vfmin = 49;
- fb_info->monspecs.vfmax = 51;
- }
-
- /*
- * XXX: This needs to pull default video output via BIOS or other means
- */
- if (video_output < 0) {
- if (cable_type == CT_VGA) {
- video_output = VO_VGA;
- } else {
- video_output = VO_NTSC;
- }
- }
-
- /*
- * Nothing exciting about the DC PVR2 .. only a measly 8MiB.
- */
- pvr2_fix.smem_start = 0xa5000000; /* RAM starts here */
- pvr2_fix.smem_len = 8 << 20;
-
- pvr2_fix.mmio_start = 0xa05f8000; /* registers start here */
- pvr2_fix.mmio_len = 0x2000;
-
- if (request_irq(HW_EVENT_VSYNC, pvr2fb_interrupt, IRQF_SHARED,
- "pvr2 VBL handler", fb_info)) {
- return -EBUSY;
- }
-
-#ifdef CONFIG_PVR2_DMA
- if (request_dma(pvr2dma, "pvr2") != 0) {
- free_irq(HW_EVENT_VSYNC, fb_info);
- return -EBUSY;
- }
-#endif
-
- return pvr2fb_common_init();
-}
-
-static void __exit pvr2fb_dc_exit(void)
-{
- if (fb_info->screen_base) {
- iounmap(fb_info->screen_base);
- fb_info->screen_base = NULL;
- }
- if (currentpar->mmio_base) {
- iounmap((void *)currentpar->mmio_base);
- currentpar->mmio_base = 0;
- }
-
- free_irq(HW_EVENT_VSYNC, fb_info);
-#ifdef CONFIG_PVR2_DMA
- free_dma(pvr2dma);
-#endif
-}
-#endif /* CONFIG_SH_DREAMCAST */
-
-#ifdef CONFIG_PCI
-static int pvr2fb_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- int ret;
-
- ret = pci_enable_device(pdev);
- if (ret) {
- printk(KERN_ERR "pvr2fb: PCI enable failed\n");
- return ret;
- }
-
- ret = pci_request_regions(pdev, "pvr2fb");
- if (ret) {
- printk(KERN_ERR "pvr2fb: PCI request regions failed\n");
- return ret;
- }
-
- /*
- * Slightly more exciting than the DC PVR2 .. 16MiB!
- */
- pvr2_fix.smem_start = pci_resource_start(pdev, 0);
- pvr2_fix.smem_len = pci_resource_len(pdev, 0);
-
- pvr2_fix.mmio_start = pci_resource_start(pdev, 1);
- pvr2_fix.mmio_len = pci_resource_len(pdev, 1);
-
- fb_info->device = &pdev->dev;
-
- return pvr2fb_common_init();
-}
-
-static void pvr2fb_pci_remove(struct pci_dev *pdev)
-{
- if (fb_info->screen_base) {
- iounmap(fb_info->screen_base);
- fb_info->screen_base = NULL;
- }
- if (currentpar->mmio_base) {
- iounmap((void *)currentpar->mmio_base);
- currentpar->mmio_base = 0;
- }
-
- pci_release_regions(pdev);
-}
-
-static struct pci_device_id pvr2fb_pci_tbl[] = {
- { PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_NEON250,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { 0, },
-};
-
-MODULE_DEVICE_TABLE(pci, pvr2fb_pci_tbl);
-
-static struct pci_driver pvr2fb_pci_driver = {
- .name = "pvr2fb",
- .id_table = pvr2fb_pci_tbl,
- .probe = pvr2fb_pci_probe,
- .remove = pvr2fb_pci_remove,
-};
-
-static int __init pvr2fb_pci_init(void)
-{
- return pci_register_driver(&pvr2fb_pci_driver);
-}
-
-static void __exit pvr2fb_pci_exit(void)
-{
- pci_unregister_driver(&pvr2fb_pci_driver);
-}
-#endif /* CONFIG_PCI */
-
-static int pvr2_get_param(const struct pvr2_params *p, const char *s, int val,
- int size)
-{
- int i;
-
- for (i = 0 ; i < size ; i++ ) {
- if (s != NULL) {
- if (!strnicmp(p[i].name, s, strlen(s)))
- return p[i].val;
- } else {
- if (p[i].val == val)
- return (int)p[i].name;
- }
- }
- return -1;
-}
-
-/*
- * Parse command arguments. Supported arguments are:
- * inverse Use inverse color maps
- * cable:composite|rgb|vga Override the video cable type
- * output:NTSC|PAL|VGA Override the video output format
- *
- * <xres>x<yres>[-<bpp>][@<refresh>] or,
- * <name>[-<bpp>][@<refresh>] Startup using this video mode
- */
-
-#ifndef MODULE
-static int __init pvr2fb_setup(char *options)
-{
- char *this_opt;
- char cable_arg[80];
- char output_arg[80];
-
- if (!options || !*options)
- return 0;
-
- while ((this_opt = strsep(&options, ","))) {
- if (!*this_opt)
- continue;
- if (!strcmp(this_opt, "inverse")) {
- fb_invert_cmaps();
- } else if (!strncmp(this_opt, "cable:", 6)) {
- strcpy(cable_arg, this_opt + 6);
- } else if (!strncmp(this_opt, "output:", 7)) {
- strcpy(output_arg, this_opt + 7);
- } else if (!strncmp(this_opt, "nopan", 5)) {
- nopan = 1;
- } else if (!strncmp(this_opt, "nowrap", 6)) {
- nowrap = 1;
- } else {
- mode_option = this_opt;
- }
- }
-
- if (*cable_arg)
- cable_type = pvr2_get_param(cables, cable_arg, 0, 3);
- if (*output_arg)
- video_output = pvr2_get_param(outputs, output_arg, 0, 3);
-
- return 0;
-}
-#endif
-
-static struct pvr2_board {
- int (*init)(void);
- void (*exit)(void);
- char name[16];
-} board_driver[] __refdata = {
-#ifdef CONFIG_SH_DREAMCAST
- { pvr2fb_dc_init, pvr2fb_dc_exit, "Sega DC PVR2" },
-#endif
-#ifdef CONFIG_PCI
- { pvr2fb_pci_init, pvr2fb_pci_exit, "PCI PVR2" },
-#endif
- { 0, },
-};
-
-static int __init pvr2fb_init(void)
-{
- int i, ret = -ENODEV;
- int size;
-
-#ifndef MODULE
- char *option = NULL;
-
- if (fb_get_options("pvr2fb", &option))
- return -ENODEV;
- pvr2fb_setup(option);
-#endif
- size = sizeof(struct fb_info) + sizeof(struct pvr2fb_par) + 16 * sizeof(u32);
-
- fb_info = framebuffer_alloc(sizeof(struct pvr2fb_par), NULL);
-
- if (!fb_info) {
- printk(KERN_ERR "Failed to allocate memory for fb_info\n");
- return -ENOMEM;
- }
-
-
- currentpar = fb_info->par;
-
- for (i = 0; i < ARRAY_SIZE(board_driver); i++) {
- struct pvr2_board *pvr_board = board_driver + i;
-
- if (!pvr_board->init)
- continue;
-
- ret = pvr_board->init();
-
- if (ret != 0) {
- printk(KERN_ERR "pvr2fb: Failed init of %s device\n",
- pvr_board->name);
- framebuffer_release(fb_info);
- break;
- }
- }
-
- return ret;
-}
-
-static void __exit pvr2fb_exit(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(board_driver); i++) {
- struct pvr2_board *pvr_board = board_driver + i;
-
- if (pvr_board->exit)
- pvr_board->exit();
- }
-
-#ifdef CONFIG_SH_STORE_QUEUES
- sq_unmap(pvr2fb_map);
-#endif
-
- unregister_framebuffer(fb_info);
- framebuffer_release(fb_info);
-}
-
-module_init(pvr2fb_init);
-module_exit(pvr2fb_exit);
-
-MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>, M. R. Brown <mrbrown@0xd6.org>");
-MODULE_DESCRIPTION("Framebuffer driver for NEC PowerVR 2 based graphics boards");
-MODULE_LICENSE("GPL");