Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965092AbXADViQ (ORCPT ); Thu, 4 Jan 2007 16:38:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965090AbXADViQ (ORCPT ); Thu, 4 Jan 2007 16:38:16 -0500 Received: from gate.crashing.org ([63.228.1.57]:47187 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965081AbXADViH (ORCPT ); Thu, 4 Jan 2007 16:38:07 -0500 Subject: Re: [RFC: 2.6 patch] remove the broken VIDEO_PLANB driver From: Benjamin Herrenschmidt To: Adrian Bunk Cc: mchehab@infradead.org, v4l-dvb-maintainer@linuxtv.org, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org In-Reply-To: <20070104185323.GF20714@stusta.de> References: <20070104185323.GF20714@stusta.de> Content-Type: text/plain Date: Fri, 05 Jan 2007 08:34:39 +1100 Message-Id: <1167946479.5273.18.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.8.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 85434 Lines: 2724 On Thu, 2007-01-04 at 19:53 +0100, Adrian Bunk wrote: > The VIDEO_PLANB driver: > - has been marked as BROKEN for more than two years and > - is still marked as BROKEN. > > Drivers that had been marked as BROKEN for such a long time seem to be > unlikely to be revived in the forseeable future. > > But if anyone wants to ever revive this driver, the code is still > present in the older kernel releases. > > Signed-off-by: Adrian Bunk I suppose I could give it a go as I do have a machine with that hardware rusting somewhere... Don't remove it right away, I'll have a look. Ben. > --- > > drivers/media/video/Kconfig | 11 > drivers/media/video/Makefile | 1 > drivers/media/video/planb.c | 2304 ---------------------------------- > drivers/media/video/planb.h | 231 --- > drivers/media/video/saa7196.h | 117 - > 5 files changed, 2664 deletions(-) > > --- linux-2.6.20-rc2-mm1/drivers/media/video/Kconfig.old 2007-01-04 17:49:44.000000000 +0100 > +++ linux-2.6.20-rc2-mm1/drivers/media/video/Kconfig 2007-01-04 17:49:55.000000000 +0100 > @@ -375,17 +375,6 @@ > To compile this driver as a module, choose M here: the > module will be called pms. > > -config VIDEO_PLANB > - tristate "PlanB Video-In on PowerMac" > - depends on PPC_PMAC && VIDEO_V4L1 && BROKEN > - help > - PlanB is the V4L driver for the PowerMac 7x00/8x00 series video > - input hardware. If you want to experiment with this, say Y. > - Otherwise, or if you don't understand a word, say N. See > - for more info. > - > - Saying M will compile this driver as a module (planb). > - > config VIDEO_BWQCAM > tristate "Quickcam BW Video For Linux" > depends on PARPORT && VIDEO_V4L1 > --- linux-2.6.20-rc2-mm1/drivers/media/video/Makefile.old 2007-01-04 17:50:03.000000000 +0100 > +++ linux-2.6.20-rc2-mm1/drivers/media/video/Makefile 2007-01-04 17:50:07.000000000 +0100 > @@ -52,7 +52,6 @@ > obj-$(CONFIG_VIDEO_ZORAN_ZR36060) += zr36060.o > > obj-$(CONFIG_VIDEO_PMS) += pms.o > -obj-$(CONFIG_VIDEO_PLANB) += planb.o > obj-$(CONFIG_VIDEO_VINO) += vino.o indycam.o > obj-$(CONFIG_VIDEO_STRADIS) += stradis.o > obj-$(CONFIG_VIDEO_CPIA) += cpia.o > --- linux-2.6.20-rc2-mm1/drivers/media/video/saa7196.h 2006-11-29 22:57:37.000000000 +0100 > +++ /dev/null 2006-09-19 00:45:31.000000000 +0200 > @@ -1,117 +0,0 @@ > -/* > - Definitions for the Philips SAA7196 digital video decoder, > - scaler, and clock generator circuit (DESCpro), as used in > - the PlanB video input of the Powermac 7x00/8x00 series. > - > - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) > - > - The register defines are shamelessly copied from the meteor > - driver out of NetBSD (with permission), > - and are copyrighted (c) 1995 Mark Tinguely and Jim Lowe > - (Thanks !) > - > - Additional debugging and coding by Takashi Oe (toe@unlinfo.unl.edu) > - > - The default values used for PlanB are my mistakes. > -*/ > - > -/* $Id: saa7196.h,v 1.5 1999/03/26 23:28:47 mlan Exp $ */ > - > -#ifndef _SAA7196_H_ > -#define _SAA7196_H_ > - > -#define SAA7196_NUMREGS 0x31 /* Number of registers (used)*/ > -#define NUM_SUPPORTED_NORM 3 /* Number of supported norms by PlanB */ > - > -/* Decoder part: */ > -#define SAA7196_IDEL 0x00 /* Increment delay */ > -#define SAA7196_HSB5 0x01 /* H-sync begin; 50 hz */ > -#define SAA7196_HSS5 0x02 /* H-sync stop; 50 hz */ > -#define SAA7196_HCB5 0x03 /* H-clamp begin; 50 hz */ > -#define SAA7196_HCS5 0x04 /* H-clamp stop; 50 hz */ > -#define SAA7196_HSP5 0x05 /* H-sync after PHI1; 50 hz */ > -#define SAA7196_LUMC 0x06 /* Luminance control */ > -#define SAA7196_HUEC 0x07 /* Hue control */ > -#define SAA7196_CKTQ 0x08 /* Colour Killer Threshold QAM (PAL, NTSC) */ > -#define SAA7196_CKTS 0x09 /* Colour Killer Threshold SECAM */ > -#define SAA7196_PALS 0x0a /* PAL switch sensitivity */ > -#define SAA7196_SECAMS 0x0b /* SECAM switch sensitivity */ > -#define SAA7196_CGAINC 0x0c /* Chroma gain control */ > -#define SAA7196_STDC 0x0d /* Standard/Mode control */ > -#define SAA7196_IOCC 0x0e /* I/O and Clock Control */ > -#define SAA7196_CTRL1 0x0f /* Control #1 */ > -#define SAA7196_CTRL2 0x10 /* Control #2 */ > -#define SAA7196_CGAINR 0x11 /* Chroma Gain Reference */ > -#define SAA7196_CSAT 0x12 /* Chroma Saturation */ > -#define SAA7196_CONT 0x13 /* Luminance Contrast */ > -#define SAA7196_HSB6 0x14 /* H-sync begin; 60 hz */ > -#define SAA7196_HSS6 0x15 /* H-sync stop; 60 hz */ > -#define SAA7196_HCB6 0x16 /* H-clamp begin; 60 hz */ > -#define SAA7196_HCS6 0x17 /* H-clamp stop; 60 hz */ > -#define SAA7196_HSP6 0x18 /* H-sync after PHI1; 60 hz */ > -#define SAA7196_BRIG 0x19 /* Luminance Brightness */ > - > -/* Scaler part: */ > -#define SAA7196_FMTS 0x20 /* Formats and sequence */ > -#define SAA7196_OUTPIX 0x21 /* Output data pixel/line */ > -#define SAA7196_INPIX 0x22 /* Input data pixel/line */ > -#define SAA7196_HWS 0x23 /* Horiz. window start */ > -#define SAA7196_HFILT 0x24 /* Horiz. filter */ > -#define SAA7196_OUTLINE 0x25 /* Output data lines/field */ > -#define SAA7196_INLINE 0x26 /* Input data lines/field */ > -#define SAA7196_VWS 0x27 /* Vertical window start */ > -#define SAA7196_VYP 0x28 /* AFS/vertical Y processing */ > -#define SAA7196_VBS 0x29 /* Vertical Bypass start */ > -#define SAA7196_VBCNT 0x2a /* Vertical Bypass count */ > -#define SAA7196_VBP 0x2b /* veritcal Bypass Polarity */ > -#define SAA7196_VLOW 0x2c /* Colour-keying lower V limit */ > -#define SAA7196_VHIGH 0x2d /* Colour-keying upper V limit */ > -#define SAA7196_ULOW 0x2e /* Colour-keying lower U limit */ > -#define SAA7196_UHIGH 0x2f /* Colour-keying upper U limit */ > -#define SAA7196_DPATH 0x30 /* Data path setting */ > - > -/* Initialization default values: */ > - > -unsigned char saa_regs[NUM_SUPPORTED_NORM][SAA7196_NUMREGS] = { > - > -/* PAL, 768x576 (no scaling), composite video-in */ > -/* Decoder: */ > - { 0x50, 0x30, 0x00, 0xe8, 0xb6, 0xe5, 0x63, 0xff, > - 0xfe, 0xf0, 0xfe, 0xe0, 0x20, 0x06, 0x3b, 0x98, > - 0x00, 0x59, 0x41, 0x45, 0x34, 0x0a, 0xf4, 0xd2, > - 0xe9, 0xa2, > -/* Padding */ > - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > -/* Scaler: */ > - 0x72, 0x80, 0x00, 0x03, 0x8d, 0x20, 0x20, 0x12, > - 0xa5, 0x12, 0x00, 0x00, 0x04, 0x00, 0x04, 0x00, > - 0x87 }, > - > -/* NTSC, 640x480? (no scaling), composite video-in */ > -/* Decoder: */ > - { 0x50, 0x30, 0x00, 0xe8, 0xb6, 0xe5, 0x50, 0x00, > - 0xf8, 0xf0, 0xfe, 0xe0, 0x00, 0x06, 0x3b, 0x98, > - 0x00, 0x2c, 0x3d, 0x40, 0x34, 0x0a, 0xf4, 0xd2, > - 0xe9, 0x98, > -/* Padding */ > - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > -/* Scaler: */ > - 0x72, 0x80, 0x80, 0x03, 0x89, 0xf0, 0xf0, 0x0d, > - 0xa0, 0x0d, 0x00, 0x00, 0x04, 0x00, 0x04, 0x00, > - 0x87 }, > - > -/* SECAM, 768x576 (no scaling), composite video-in */ > -/* Decoder: */ > - { 0x50, 0x30, 0x00, 0xe8, 0xb6, 0xe5, 0x63, 0xff, > - 0xfe, 0xf0, 0xfe, 0xe0, 0x20, 0x07, 0x3b, 0x98, > - 0x00, 0x59, 0x41, 0x45, 0x34, 0x0a, 0xf4, 0xd2, > - 0xe9, 0xa2, > -/* Padding */ > - 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > -/* Scaler: */ > - 0x72, 0x80, 0x00, 0x03, 0x8d, 0x20, 0x20, 0x12, > - 0xa5, 0x12, 0x00, 0x00, 0x04, 0x00, 0x04, 0x00, > - 0x87 } > - }; > - > -#endif /* _SAA7196_H_ */ > --- linux-2.6.20-rc2-mm1/drivers/media/video/planb.h 2006-11-29 22:57:37.000000000 +0100 > +++ /dev/null 2006-09-19 00:45:31.000000000 +0200 > @@ -1,231 +0,0 @@ > -/* > - planb - PlanB frame grabber driver > - > - PlanB is used in the 7x00/8x00 series of PowerMacintosh > - Computers as video input DMA controller. > - > - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) > - > - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) > - > - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) > - > - > - This program is free software; you can redistribute it and/or modify > - it under the terms of the GNU General Public License as published by > - the Free Software Foundation; either version 2 of the License, or > - (at your option) any later version. > - > - This program is distributed in the hope that it will be useful, > - but WITHOUT ANY WARRANTY; without even the implied warranty of > - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > - GNU General Public License for more details. > - > - You should have received a copy of the GNU General Public License > - along with this program; if not, write to the Free Software > - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. > -*/ > - > -/* $Id: planb.h,v 1.13 1999/05/03 19:28:56 mlan Exp $ */ > - > -#ifndef _PLANB_H_ > -#define _PLANB_H_ > - > -#ifdef __KERNEL__ > -#include > -#include "saa7196.h" > -#endif /* __KERNEL__ */ > - > -#define PLANB_DEVICE_NAME "Apple PlanB Video-In" > -#define PLANB_REV "1.0" > - > -#ifdef __KERNEL__ > -//#define PLANB_GSCANLINE /* use this if apps have the notion of */ > - /* grab buffer scanline */ > -/* This should be safe for both PAL and NTSC */ > -#define PLANB_MAXPIXELS 768 > -#define PLANB_MAXLINES 576 > -#define PLANB_NTSC_MAXLINES 480 > - > -/* Uncomment your preferred norm ;-) */ > -#define PLANB_DEF_NORM VIDEO_MODE_PAL > -//#define PLANB_DEF_NORM VIDEO_MODE_NTSC > -//#define PLANB_DEF_NORM VIDEO_MODE_SECAM > - > -/* fields settings */ > -#define PLANB_GRAY 0x1 /* 8-bit mono? */ > -#define PLANB_COLOUR15 0x2 /* 16-bit mode */ > -#define PLANB_COLOUR32 0x4 /* 32-bit mode */ > -#define PLANB_CLIPMASK 0x8 /* hardware clipmasking */ > - > -/* misc. flags for PlanB DMA operation */ > -#define CH_SYNC 0x1 /* synchronize channels (set by ch1; > - cleared by ch2) */ > -#define FIELD_SYNC 0x2 /* used for the start of each field > - (0 -> 1 -> 0 for ch1; 0 -> 1 for ch2) */ > -#define EVEN_FIELD 0x0 /* even field is detected if unset */ > -#define DMA_ABORT 0x2 /* error or just out of sync if set */ > -#define ODD_FIELD 0x4 /* odd field is detected if set */ > - > -/* for capture operations */ > -#define MAX_GBUFFERS 2 > -/* note PLANB_MAX_FBUF must be divisible by PAGE_SIZE */ > -#ifdef PLANB_GSCANLINE > -#define PLANB_MAX_FBUF 0x240000 /* 576 * 1024 * 4 */ > -#define TAB_FACTOR (1) > -#else > -#define PLANB_MAX_FBUF 0x1b0000 /* 576 * 768 * 4 */ > -#define TAB_FACTOR (2) > -#endif > -#endif /* __KERNEL__ */ > - > -struct planb_saa_regs { > - unsigned char addr; > - unsigned char val; > -}; > - > -struct planb_stat_regs { > - unsigned int ch1_stat; > - unsigned int ch2_stat; > - unsigned char saa_stat0; > - unsigned char saa_stat1; > -}; > - > -struct planb_any_regs { > - unsigned int offset; > - unsigned int bytes; > - unsigned char data[128]; > -}; > - > -/* planb private ioctls */ > -#define PLANBIOCGSAAREGS _IOWR('v', BASE_VIDIOCPRIVATE, struct planb_saa_regs) /* Read a saa7196 reg value */ > -#define PLANBIOCSSAAREGS _IOW('v', BASE_VIDIOCPRIVATE + 1, struct planb_saa_regs) /* Set a saa7196 reg value */ > -#define PLANBIOCGSTAT _IOR('v', BASE_VIDIOCPRIVATE + 2, struct planb_stat_regs) /* Read planb status */ > -#define PLANB_TV_MODE 1 > -#define PLANB_VTR_MODE 2 > -#define PLANBIOCGMODE _IOR('v', BASE_VIDIOCPRIVATE + 3, int) /* Get TV/VTR mode */ > -#define PLANBIOCSMODE _IOW('v', BASE_VIDIOCPRIVATE + 4, int) /* Set TV/VTR mode */ > - > -#ifdef PLANB_GSCANLINE > -#define PLANBG_GRAB_BPL _IOR('v', BASE_VIDIOCPRIVATE + 5, int) /* # of bytes per scanline in grab buffer */ > -#endif > - > -/* call wake_up_interruptible() with appropriate actions */ > -#define PLANB_INTR_DEBUG _IOW('v', BASE_VIDIOCPRIVATE + 20, int) > -/* investigate which reg does what */ > -#define PLANB_INV_REGS _IOWR('v', BASE_VIDIOCPRIVATE + 21, struct planb_any_regs) > - > -#ifdef __KERNEL__ > - > -/* Potentially useful macros */ > -#define PLANB_SET(x) ((x) << 16 | (x)) > -#define PLANB_CLR(x) ((x) << 16) > - > -/* This represents the physical register layout */ > -struct planb_registers { > - volatile struct dbdma_regs ch1; /* 0x00: video in */ > - volatile unsigned int even; /* 0x40: even field setting */ > - volatile unsigned int odd; /* 0x44; odd field setting */ > - unsigned int pad1[14]; /* empty? */ > - volatile struct dbdma_regs ch2; /* 0x80: clipmask out */ > - unsigned int pad2[16]; /* 0xc0: empty? */ > - volatile unsigned int reg3; /* 0x100: ???? */ > - volatile unsigned int intr_stat; /* 0x104: irq status */ > -#define PLANB_CLR_IRQ 0x00 /* clear Plan B interrupt */ > -#define PLANB_GEN_IRQ 0x01 /* assert Plan B interrupt */ > -#define PLANB_FRM_IRQ 0x0100 /* end of frame */ > - unsigned int pad3[1]; /* empty? */ > - volatile unsigned int reg5; /* 0x10c: ??? */ > - unsigned int pad4[60]; /* empty? */ > - volatile unsigned char saa_addr; /* 0x200: SAA subadr */ > - char pad5[3]; > - volatile unsigned char saa_regval; /* SAA7196 write reg. val */ > - char pad6[3]; > - volatile unsigned char saa_status; /* SAA7196 status byte */ > - /* There is more unused stuff here */ > -}; > - > -struct planb_window { > - int x, y; > - ushort width, height; > - ushort bpp, bpl, depth, pad; > - ushort swidth, sheight; > - int norm; > - int interlace; > - u32 color_fmt; > - int chromakey; > - int mode; /* used to switch between TV/VTR modes */ > -}; > - > -struct planb_suspend { > - int overlay; > - int frame; > - struct dbdma_cmd cmd; > -}; > - > -struct planb { > - struct video_device video_dev; > - struct video_picture picture; /* Current picture params */ > - struct video_audio audio_dev; /* Current audio params */ > - > - volatile struct planb_registers *planb_base; /* virt base of planb */ > - struct planb_registers *planb_base_phys; /* phys base of planb */ > - void *priv_space; /* Org. alloc. mem for kfree */ > - int user; > - unsigned int tab_size; > - int maxlines; > - struct mutex lock; > - unsigned int irq; /* interrupt number */ > - volatile unsigned int intr_mask; > - > - int overlay; /* overlay running? */ > - struct planb_window win; > - unsigned long frame_buffer_phys; /* We need phys for DMA */ > - int offset; /* offset of pixel 1 */ > - volatile struct dbdma_cmd *ch1_cmd; /* Video In DMA cmd buffer */ > - volatile struct dbdma_cmd *ch2_cmd; /* Clip Out DMA cmd buffer */ > - volatile struct dbdma_cmd *overlay_last1; > - volatile struct dbdma_cmd *overlay_last2; > - unsigned long ch1_cmd_phys; > - volatile unsigned char *mask; /* Clipmask buffer */ > - int suspend; > - wait_queue_head_t suspendq; > - struct planb_suspend suspended; > - int cmd_buff_inited; /* cmd buffer inited? */ > - > - int grabbing; > - unsigned int gcount; > - wait_queue_head_t capq; > - int last_fr; > - int prev_last_fr; > - unsigned char **rawbuf; > - int rawbuf_size; > - int gbuf_idx[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *cap_cmd[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *last_cmd[MAX_GBUFFERS]; > - volatile struct dbdma_cmd *pre_cmd[MAX_GBUFFERS]; > - int need_pre_capture[MAX_GBUFFERS]; > -#define PLANB_DUMMY 40 /* # of command buf's allocated for pre-capture seq. */ > - int gwidth[MAX_GBUFFERS], gheight[MAX_GBUFFERS]; > - unsigned int gfmt[MAX_GBUFFERS]; > - int gnorm_switch[MAX_GBUFFERS]; > - volatile unsigned int *frame_stat; > -#define GBUFFER_UNUSED 0x00U > -#define GBUFFER_GRABBING 0x01U > -#define GBUFFER_DONE 0x02U > -#ifdef PLANB_GSCANLINE > - int gbytes_per_line; > -#else > -#define MAX_LNUM 431 /* change this if PLANB_MAXLINES or */ > - /* PLANB_MAXPIXELS changes */ > - int l_fr_addr_idx[MAX_GBUFFERS]; > - unsigned char *l_to_addr[MAX_GBUFFERS][MAX_LNUM]; > - int l_to_next_idx[MAX_GBUFFERS][MAX_LNUM]; > - int l_to_next_size[MAX_GBUFFERS][MAX_LNUM]; > - int lsize[MAX_GBUFFERS], lnum[MAX_GBUFFERS]; > -#endif > -}; > - > -#endif /* __KERNEL__ */ > - > -#endif /* _PLANB_H_ */ > --- linux-2.6.20-rc2-mm1/drivers/media/video/planb.c 2006-12-28 11:57:33.000000000 +0100 > +++ /dev/null 2006-09-19 00:45:31.000000000 +0200 > @@ -1,2304 +0,0 @@ > -/* > - planb - PlanB frame grabber driver > - > - PlanB is used in the 7x00/8x00 series of PowerMacintosh > - Computers as video input DMA controller. > - > - Copyright (C) 1998 Michel Lanners (mlan@cpu.lu) > - > - Based largely on the bttv driver by Ralph Metzler (rjkm@thp.uni-koeln.de) > - > - Additional debugging and coding by Takashi Oe (toe@unlserve.unl.edu) > - > - This program is free software; you can redistribute it and/or modify > - it under the terms of the GNU General Public License as published by > - the Free Software Foundation; either version 2 of the License, or > - (at your option) any later version. > - > - This program is distributed in the hope that it will be useful, > - but WITHOUT ANY WARRANTY; without even the implied warranty of > - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > - GNU General Public License for more details. > - > - You should have received a copy of the GNU General Public License > - along with this program; if not, write to the Free Software > - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. > -*/ > - > -/* $Id: planb.c,v 1.18 1999/05/02 17:36:34 mlan Exp $ */ > - > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > - > -#include "planb.h" > -#include "saa7196.h" > - > -/* Would you mind for some ugly debugging? */ > -#if 0 > -#define DEBUG(x...) printk(KERN_DEBUG ## x) /* Debug driver */ > -#else > -#define DEBUG(x...) /* Don't debug driver */ > -#endif > - > -#if 0 > -#define IDEBUG(x...) printk(KERN_DEBUG ## x) /* Debug interrupt part */ > -#else > -#define IDEBUG(x...) /* Don't debug interrupt part */ > -#endif > - > -/* Ever seen a Mac with more than 1 of these? */ > -#define PLANB_MAX 1 > - > -static int planb_num; > -static struct planb planbs[PLANB_MAX]; > -static volatile struct planb_registers *planb_regs; > - > -static int def_norm = PLANB_DEF_NORM; /* default norm */ > -static int video_nr = -1; > - > -module_param(def_norm, int, 0); > -MODULE_PARM_DESC(def_norm, "Default startup norm (0=PAL, 1=NTSC, 2=SECAM)"); > -module_param(video_nr, int, 0); > -MODULE_LICENSE("GPL"); > - > - > -/* ------------------ PlanB Exported Functions ------------------ */ > -static long planb_write(struct video_device *, const char *, unsigned long, int); > -static long planb_read(struct video_device *, char *, unsigned long, int); > -static int planb_open(struct video_device *, int); > -static void planb_close(struct video_device *); > -static int planb_ioctl(struct video_device *, unsigned int, void *); > -static int planb_init_done(struct video_device *); > -static int planb_mmap(struct video_device *, const char *, unsigned long); > -static void planb_irq(int, void *); > -static void release_planb(void); > -int init_planbs(struct video_init *); > - > -/* ------------------ PlanB Internal Functions ------------------ */ > -static int planb_prepare_open(struct planb *); > -static void planb_prepare_close(struct planb *); > -static void saa_write_reg(unsigned char, unsigned char); > -static unsigned char saa_status(int, struct planb *); > -static void saa_set(unsigned char, unsigned char, struct planb *); > -static void saa_init_regs(struct planb *); > -static int grabbuf_alloc(struct planb *); > -static int vgrab(struct planb *, struct video_mmap *); > -static void add_clip(struct planb *, struct video_clip *); > -static void fill_cmd_buff(struct planb *); > -static void cmd_buff(struct planb *); > -static volatile struct dbdma_cmd *setup_grab_cmd(int, struct planb *); > -static void overlay_start(struct planb *); > -static void overlay_stop(struct planb *); > -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *, unsigned short, > - unsigned int); > -static inline void tab_cmd_store(volatile struct dbdma_cmd *, unsigned int, > - unsigned int); > -static inline void tab_cmd_gen(volatile struct dbdma_cmd *, unsigned short, > - unsigned short, unsigned int, unsigned int); > -static int init_planb(struct planb *); > -static int find_planb(void); > -static void planb_pre_capture(int, int, struct planb *); > -static volatile struct dbdma_cmd *cmd_geo_setup(volatile struct dbdma_cmd *, > - int, int, int, int, int, struct planb *); > -static inline void planb_dbdma_stop(volatile struct dbdma_regs *); > -static unsigned int saa_geo_setup(int, int, int, int, struct planb *); > -static inline int overlay_is_active(struct planb *); > - > -/*******************************/ > -/* Memory management functions */ > -/*******************************/ > - > -static int grabbuf_alloc(struct planb *pb) > -{ > - int i, npage; > - > - npage = MAX_GBUFFERS * ((PLANB_MAX_FBUF / PAGE_SIZE + 1) > -#ifndef PLANB_GSCANLINE > - + MAX_LNUM > -#endif /* PLANB_GSCANLINE */ > - ); > - if ((pb->rawbuf = kmalloc(npage > - * sizeof(unsigned long), GFP_KERNEL)) == 0) > - return -ENOMEM; > - for (i = 0; i < npage; i++) { > - pb->rawbuf[i] = (unsigned char *)__get_free_pages(GFP_KERNEL > - |GFP_DMA, 0); > - if (!pb->rawbuf[i]) > - break; > - SetPageReserved(virt_to_page(pb->rawbuf[i])); > - } > - if (i-- < npage) { > - printk(KERN_DEBUG "PlanB: init_grab: grab buffer not allocated\n"); > - for (; i > 0; i--) { > - ClearPageReserved(virt_to_page(pb->rawbuf[i])); > - free_pages((unsigned long)pb->rawbuf[i], 0); > - } > - kfree(pb->rawbuf); > - return -ENOBUFS; > - } > - pb->rawbuf_size = npage; > - return 0; > -} > - > -/*****************************/ > -/* Hardware access functions */ > -/*****************************/ > - > -static void saa_write_reg(unsigned char addr, unsigned char val) > -{ > - planb_regs->saa_addr = addr; eieio(); > - planb_regs->saa_regval = val; eieio(); > - return; > -} > - > -/* return status byte 0 or 1: */ > -static unsigned char saa_status(int byte, struct planb *pb) > -{ > - saa_regs[pb->win.norm][SAA7196_STDC] = > - (saa_regs[pb->win.norm][SAA7196_STDC] & ~2) | ((byte & 1) << 1); > - saa_write_reg (SAA7196_STDC, saa_regs[pb->win.norm][SAA7196_STDC]); > - > - /* Let's wait 30msec for this one */ > - msleep_interruptible(30); > - > - return (unsigned char)in_8 (&planb_regs->saa_status); > -} > - > -static void saa_set(unsigned char addr, unsigned char val, struct planb *pb) > -{ > - if(saa_regs[pb->win.norm][addr] != val) { > - saa_regs[pb->win.norm][addr] = val; > - saa_write_reg (addr, val); > - } > - return; > -} > - > -static void saa_init_regs(struct planb *pb) > -{ > - int i; > - > - for (i = 0; i < SAA7196_NUMREGS; i++) > - saa_write_reg (i, saa_regs[pb->win.norm][i]); > -} > - > -static unsigned int saa_geo_setup(int width, int height, int interlace, int bpp, > - struct planb *pb) > -{ > - int ht, norm = pb->win.norm; > - > - switch(bpp) { > - case 2: > - /* RGB555+a 1x16-bit + 16-bit transparent */ > - saa_regs[norm][SAA7196_FMTS] &= ~0x3; > - break; > - case 1: > - case 4: > - /* RGB888 1x24-bit + 8-bit transparent */ > - saa_regs[norm][SAA7196_FMTS] &= ~0x1; > - saa_regs[norm][SAA7196_FMTS] |= 0x2; > - break; > - default: > - return -EINVAL; > - } > - ht = (interlace ? height / 2 : height); > - saa_regs[norm][SAA7196_OUTPIX] = (unsigned char) (width & 0x00ff); > - saa_regs[norm][SAA7196_HFILT] = (saa_regs[norm][SAA7196_HFILT] & ~0x3) > - | (width >> 8 & 0x3); > - saa_regs[norm][SAA7196_OUTLINE] = (unsigned char) (ht & 0xff); > - saa_regs[norm][SAA7196_VYP] = (saa_regs[norm][SAA7196_VYP] & ~0x3) > - | (ht >> 8 & 0x3); > - /* feed both fields if interlaced, or else feed only even fields */ > - saa_regs[norm][SAA7196_FMTS] = (interlace) ? > - (saa_regs[norm][SAA7196_FMTS] & ~0x60) > - : (saa_regs[norm][SAA7196_FMTS] | 0x60); > - /* transparent mode; extended format enabled */ > - saa_regs[norm][SAA7196_DPATH] |= 0x3; > - > - return 0; > -} > - > -/***************************/ > -/* DBDMA support functions */ > -/***************************/ > - > -static inline void planb_dbdma_restart(volatile struct dbdma_regs *ch) > -{ > - out_le32(&ch->control, PLANB_CLR(RUN)); > - out_le32(&ch->control, PLANB_SET(RUN|WAKE) | PLANB_CLR(PAUSE)); > -} > - > -static inline void planb_dbdma_stop(volatile struct dbdma_regs *ch) > -{ > - int i = 0; > - > - out_le32(&ch->control, PLANB_CLR(RUN) | PLANB_SET(FLUSH)); > - while((in_le32(&ch->status) == (ACTIVE | FLUSH)) && (i < 999)) { > - IDEBUG("PlanB: waiting for DMA to stop\n"); > - i++; > - } > -} > - > -static inline void tab_cmd_dbdma(volatile struct dbdma_cmd *ch, > - unsigned short command, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, command); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static inline void tab_cmd_store(volatile struct dbdma_cmd *ch, > - unsigned int phy_addr, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, STORE_WORD | KEY_SYSTEM); > - st_le16(&ch->req_count, 4); > - st_le32(&ch->phy_addr, phy_addr); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static inline void tab_cmd_gen(volatile struct dbdma_cmd *ch, > - unsigned short command, unsigned short req_count, > - unsigned int phy_addr, unsigned int cmd_dep) > -{ > - st_le16(&ch->command, command); > - st_le16(&ch->req_count, req_count); > - st_le32(&ch->phy_addr, phy_addr); > - st_le32(&ch->cmd_dep, cmd_dep); > -} > - > -static volatile struct dbdma_cmd *cmd_geo_setup( > - volatile struct dbdma_cmd *c1, int width, int height, int interlace, > - int bpp, int clip, struct planb *pb) > -{ > - int norm = pb->win.norm; > - > - if((saa_geo_setup(width, height, interlace, bpp, pb)) != 0) > - return (volatile struct dbdma_cmd *)NULL; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_FMTS); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_FMTS]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_DPATH); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_DPATH]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->even), > - bpp | ((clip)? PLANB_CLIPMASK: 0)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->odd), > - bpp | ((clip)? PLANB_CLIPMASK: 0)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_OUTPIX); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_OUTPIX]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_HFILT); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_HFILT]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_OUTLINE); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_OUTLINE]); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_addr), > - SAA7196_VYP); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->saa_regval), > - saa_regs[norm][SAA7196_VYP]); > - return c1; > -} > - > -/******************************/ > -/* misc. supporting functions */ > -/******************************/ > - > -static inline void planb_lock(struct planb *pb) > -{ > - mutex_lock(&pb->lock); > -} > - > -static inline void planb_unlock(struct planb *pb) > -{ > - mutex_unlock(&pb->lock); > -} > - > -/***************/ > -/* Driver Core */ > -/***************/ > - > -static int planb_prepare_open(struct planb *pb) > -{ > - int i, size; > - > - /* allocate memory for two plus alpha command buffers (size: max lines, > - plus 40 commands handling, plus 1 alignment), plus dummy command buf, > - plus clipmask buffer, plus frame grabbing status */ > - size = (pb->tab_size*(2+MAX_GBUFFERS*TAB_FACTOR)+1+MAX_GBUFFERS > - * PLANB_DUMMY)*sizeof(struct dbdma_cmd) > - +(PLANB_MAXLINES*((PLANB_MAXPIXELS+7)& ~7))/8 > - +MAX_GBUFFERS*sizeof(unsigned int); > - if ((pb->priv_space = kmalloc (size, GFP_KERNEL)) == 0) > - return -ENOMEM; > - memset ((void *) pb->priv_space, 0, size); > - pb->overlay_last1 = pb->ch1_cmd = (volatile struct dbdma_cmd *) > - DBDMA_ALIGN (pb->priv_space); > - pb->overlay_last2 = pb->ch2_cmd = pb->ch1_cmd + pb->tab_size; > - pb->ch1_cmd_phys = virt_to_bus(pb->ch1_cmd); > - pb->cap_cmd[0] = pb->ch2_cmd + pb->tab_size; > - pb->pre_cmd[0] = pb->cap_cmd[0] + pb->tab_size * TAB_FACTOR; > - for (i = 1; i < MAX_GBUFFERS; i++) { > - pb->cap_cmd[i] = pb->pre_cmd[i-1] + PLANB_DUMMY; > - pb->pre_cmd[i] = pb->cap_cmd[i] + pb->tab_size * TAB_FACTOR; > - } > - pb->frame_stat=(volatile unsigned int *)(pb->pre_cmd[MAX_GBUFFERS-1] > - + PLANB_DUMMY); > - pb->mask = (unsigned char *)(pb->frame_stat+MAX_GBUFFERS); > - > - pb->rawbuf = NULL; > - pb->rawbuf_size = 0; > - pb->grabbing = 0; > - for (i = 0; i < MAX_GBUFFERS; i++) { > - pb->frame_stat[i] = GBUFFER_UNUSED; > - pb->gwidth[i] = 0; > - pb->gheight[i] = 0; > - pb->gfmt[i] = 0; > - pb->gnorm_switch[i] = 0; > -#ifndef PLANB_GSCANLINE > - pb->lsize[i] = 0; > - pb->lnum[i] = 0; > -#endif /* PLANB_GSCANLINE */ > - } > - pb->gcount = 0; > - pb->suspend = 0; > - pb->last_fr = -999; > - pb->prev_last_fr = -999; > - > - /* Reset DMA controllers */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - return 0; > -} > - > -static void planb_prepare_close(struct planb *pb) > -{ > - int i; > - > - /* make sure the dma's are idle */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - /* free kernel memory of command buffers */ > - if(pb->priv_space != 0) { > - kfree (pb->priv_space); > - pb->priv_space = 0; > - pb->cmd_buff_inited = 0; > - } > - if(pb->rawbuf) { > - for (i = 0; i < pb->rawbuf_size; i++) { > - ClearPageReserved(virt_to_page(pb->rawbuf[i])); > - free_pages((unsigned long)pb->rawbuf[i], 0); > - } > - kfree(pb->rawbuf); > - } > - pb->rawbuf = NULL; > -} > - > -/*****************************/ > -/* overlay support functions */ > -/*****************************/ > - > -static inline int overlay_is_active(struct planb *pb) > -{ > - unsigned int size = pb->tab_size * sizeof(struct dbdma_cmd); > - unsigned int caddr = (unsigned)in_le32(&pb->planb_base->ch1.cmdptr); > - > - return (in_le32(&pb->overlay_last1->cmd_dep) == pb->ch1_cmd_phys) > - && (caddr < (pb->ch1_cmd_phys + size)) > - && (caddr >= (unsigned)pb->ch1_cmd_phys); > -} > - > -static void overlay_start(struct planb *pb) > -{ > - > - DEBUG("PlanB: overlay_start()\n"); > - > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - > - DEBUG("PlanB: presumably, grabbing is in progress...\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - out_le32 (&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->ch2_cmd)); > - planb_dbdma_restart(&pb->planb_base->ch2); > - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - pb->prev_last_fr = pb->last_fr; > - pb->last_fr = -2; > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - IDEBUG("PlanB: became inactive " > - "in the mean time... reactivating\n"); > - planb_dbdma_stop(&pb->planb_base->ch1); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->ch1_cmd)); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } else { > - > - DEBUG("PlanB: currently idle, so can do whatever\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - st_le32 (&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->ch2_cmd)); > - st_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->ch1_cmd)); > - out_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - planb_dbdma_restart(&pb->planb_base->ch2); > - planb_dbdma_restart(&pb->planb_base->ch1); > - pb->last_fr = -1; > - } > - return; > -} > - > -static void overlay_stop(struct planb *pb) > -{ > - DEBUG("PlanB: overlay_stop()\n"); > - > - if(pb->last_fr == -1) { > - > - DEBUG("PlanB: no grabbing, it seems...\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->last_fr = -999; > - } else if(pb->last_fr == -2) { > - unsigned int cmd_dep; > - tab_cmd_dbdma(pb->cap_cmd[pb->prev_last_fr], DBDMA_STOP, 0); > - eieio(); > - cmd_dep = (unsigned int)in_le32(&pb->overlay_last1->cmd_dep); > - if(overlay_is_active(pb)) { > - > - DEBUG("PlanB: overlay is currently active\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - if(cmd_dep != pb->ch1_cmd_phys) { > - out_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->overlay_last1)); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } > - pb->last_fr = pb->prev_last_fr; > - pb->prev_last_fr = -999; > - } > - return; > -} > - > -static void suspend_overlay(struct planb *pb) > -{ > - int fr = -1; > - struct dbdma_cmd last; > - > - DEBUG("PlanB: suspend_overlay: %d\n", pb->suspend); > - > - if(pb->suspend++) > - return; > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - if(pb->last_fr == -2) { > - fr = pb->prev_last_fr; > - memcpy(&last, (void*)pb->last_cmd[fr], sizeof(last)); > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - } > - if(overlay_is_active(pb)) { > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->suspended.overlay = 1; > - pb->suspended.frame = fr; > - memcpy(&pb->suspended.cmd, &last, sizeof(last)); > - return; > - } > - } > - pb->suspended.overlay = 0; > - pb->suspended.frame = fr; > - memcpy(&pb->suspended.cmd, &last, sizeof(last)); > - return; > -} > - > -static void resume_overlay(struct planb *pb) > -{ > - > - DEBUG("PlanB: resume_overlay: %d\n", pb->suspend); > - > - if(pb->suspend > 1) > - return; > - if(pb->suspended.frame != -1) { > - memcpy((void*)pb->last_cmd[pb->suspended.frame], > - &pb->suspended.cmd, sizeof(pb->suspended.cmd)); > - } > - if(ACTIVE & in_le32(&pb->planb_base->ch1.status)) { > - goto finish; > - } > - if(pb->suspended.overlay) { > - > - DEBUG("PlanB: overlay being resumed\n"); > - > - st_le16 (&pb->ch1_cmd->command, DBDMA_NOP); > - st_le16 (&pb->ch2_cmd->command, DBDMA_NOP); > - /* Set command buffer addresses */ > - st_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->overlay_last1)); > - out_le32(&pb->planb_base->ch2.cmdptr, > - virt_to_bus(pb->overlay_last2)); > - /* Start the DMA controller */ > - out_le32 (&pb->planb_base->ch2.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - out_le32 (&pb->planb_base->ch1.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - } else if(pb->suspended.frame != -1) { > - out_le32(&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->last_cmd[pb->suspended.frame])); > - out_le32 (&pb->planb_base->ch1.control, > - PLANB_CLR(PAUSE) | PLANB_SET(RUN|WAKE)); > - } > - > -finish: > - pb->suspend--; > - wake_up_interruptible(&pb->suspendq); > -} > - > -static void add_clip(struct planb *pb, struct video_clip *clip) > -{ > - volatile unsigned char *base; > - int xc = clip->x, yc = clip->y; > - int wc = clip->width, hc = clip->height; > - int ww = pb->win.width, hw = pb->win.height; > - int x, y, xtmp1, xtmp2; > - > - DEBUG("PlanB: clip %dx%d+%d+%d\n", wc, hc, xc, yc); > - > - if(xc < 0) { > - wc += xc; > - xc = 0; > - } > - if(yc < 0) { > - hc += yc; > - yc = 0; > - } > - if(xc + wc > ww) > - wc = ww - xc; > - if(wc <= 0) /* Nothing to do */ > - return; > - if(yc + hc > hw) > - hc = hw - yc; > - > - for (y = yc; y < yc+hc; y++) { > - xtmp1=xc>>3; > - xtmp2=(xc+wc)>>3; > - base = pb->mask + y*96; > - if(xc != 0 || wc >= 8) > - *(base + xtmp1) &= (unsigned char)(0x00ff & > - (0xff00 >> (xc&7))); > - for (x = xtmp1 + 1; x < xtmp2; x++) { > - *(base + x) = 0; > - } > - if(xc < (ww & ~0x7)) > - *(base + xtmp2) &= (unsigned char)(0x00ff >> > - ((xc+wc) & 7)); > - } > - > - return; > -} > - > -static void fill_cmd_buff(struct planb *pb) > -{ > - int restore = 0; > - volatile struct dbdma_cmd last; > - > - DEBUG("PlanB: fill_cmd_buff()\n"); > - > - if(pb->overlay_last1 != pb->ch1_cmd) { > - restore = 1; > - last = *(pb->overlay_last1); > - } > - memset ((void *) pb->ch1_cmd, 0, 2 * pb->tab_size > - * sizeof(struct dbdma_cmd)); > - cmd_buff (pb); > - if(restore) > - *(pb->overlay_last1) = last; > - if(pb->suspended.overlay) { > - unsigned long jump_addr = in_le32(&pb->overlay_last1->cmd_dep); > - if(jump_addr != pb->ch1_cmd_phys) { > - int i; > - > - DEBUG("PlanB: adjusting ch1's jump address\n"); > - > - for(i = 0; i < MAX_GBUFFERS; i++) { > - if(pb->need_pre_capture[i]) { > - if(jump_addr == virt_to_bus(pb->pre_cmd[i])) > - goto found; > - } else { > - if(jump_addr == virt_to_bus(pb->cap_cmd[i])) > - goto found; > - } > - } > - > - DEBUG("PlanB: not found...\n"); > - > - goto out; > -found: > - if(pb->need_pre_capture[i]) > - out_le32(&pb->pre_cmd[i]->phy_addr, > - virt_to_bus(pb->overlay_last1)); > - else > - out_le32(&pb->cap_cmd[i]->phy_addr, > - virt_to_bus(pb->overlay_last1)); > - } > - } > -out: > - pb->cmd_buff_inited = 1; > - > - return; > -} > - > -static void cmd_buff(struct planb *pb) > -{ > - int i, bpp, count, nlines, stepsize, interlace; > - unsigned long base, jump, addr_com, addr_dep; > - volatile struct dbdma_cmd *c1 = pb->ch1_cmd; > - volatile struct dbdma_cmd *c2 = pb->ch2_cmd; > - > - interlace = pb->win.interlace; > - bpp = pb->win.bpp; > - count = (bpp * ((pb->win.x + pb->win.width > pb->win.swidth) ? > - (pb->win.swidth - pb->win.x) : pb->win.width)); > - nlines = ((pb->win.y + pb->win.height > pb->win.sheight) ? > - (pb->win.sheight - pb->win.y) : pb->win.height); > - > - /* Do video in: */ > - > - /* Preamble commands: */ > - addr_com = virt_to_bus(c1); > - addr_dep = virt_to_bus(&c1->cmd_dep); > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - jump = virt_to_bus(c1+16); /* 14 by cmd_geo_setup() and 2 for padding */ > - if((c1 = cmd_geo_setup(c1, pb->win.width, pb->win.height, interlace, > - bpp, 1, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered serious problems\n"); > - tab_cmd_dbdma(pb->ch1_cmd + 1, DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->ch2_cmd + 1, DBDMA_STOP, 0); > - return; > - } > - tab_cmd_store(c1++, addr_com, (unsigned)(DBDMA_NOP | BR_ALWAYS) << 16); > - tab_cmd_store(c1++, addr_dep, jump); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - /* (1) wait for field sync to be set */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - /* wait for field sync to be cleared */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - /* if not odd field, wait until field sync is set again */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - /* assert ch_sync to ch2 */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_SET(CH_SYNC)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - base = (pb->frame_buffer_phys + pb->offset + pb->win.y * (pb->win.bpl > - + pb->win.pad) + pb->win.x * bpp); > - > - if (interlace) { > - stepsize = 2; > - jump = virt_to_bus(c1 + (nlines + 1) / 2); > - } else { > - stepsize = 1; > - jump = virt_to_bus(c1 + nlines); > - } > - > - /* even field data: */ > - for (i=0; i < nlines; i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, > - count, base + i * (pb->win.bpl + pb->win.pad), jump); > - > - /* For non-interlaced, we use even fields only */ > - if (!interlace) > - goto cmd_tab_data_end; > - > - /* Resync to odd field */ > - /* (2) wait for field sync to be set */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - /* wait for field sync to be cleared */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - /* if not odd field, wait until field sync is set again */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - /* assert ch_sync to ch2 */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_SET(CH_SYNC)); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - /* odd field data: */ > - jump = virt_to_bus(c1 + nlines / 2); > - for (i=1; i < nlines; i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + i * (pb->win.bpl + pb->win.pad), jump); > - > - /* And jump back to the start */ > -cmd_tab_data_end: > - pb->overlay_last1 = c1; /* keep a pointer to the last command */ > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch1_cmd)); > - > - /* Clipmask command buffer */ > - > - /* Preamble commands: */ > - tab_cmd_dbdma(c2++, DBDMA_NOP, 0); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), > - PLANB_SET(CH_SYNC)); > - /* wait until ch1 asserts ch_sync */ > - tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); > - /* clear ch_sync asserted by ch1 */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.control), > - PLANB_CLR(CH_SYNC)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(ODD_FIELD)); > - > - /* jump to end of even field if appropriate */ > - /* this points to (interlace)? pos. C: pos. B */ > - jump = (interlace) ? virt_to_bus(c2 + (nlines + 1) / 2 + 2): > - virt_to_bus(c2 + nlines + 2); > - /* if odd field, skip over to odd field clipmasking */ > - tab_cmd_dbdma(c2++, DBDMA_NOP | BR_IFSET, jump); > - > - /* even field mask: */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* this points to pos. B */ > - jump = (interlace) ? virt_to_bus(c2 + nlines + 1): > - virt_to_bus(c2 + nlines); > - base = virt_to_bus(pb->mask); > - for (i=0; i < nlines; i += stepsize, c2++) > - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, > - base + i * 96, jump); > - > - /* For non-interlaced, we use only even fields */ > - if(!interlace) > - goto cmd_tab_mask_end; > - > - /* odd field mask: */ > -/* C */ tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch2.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* this points to pos. B */ > - jump = virt_to_bus(c2 + nlines / 2); > - base = virt_to_bus(pb->mask); > - for (i=1; i < nlines; i += 2, c2++) /* abort if set */ > - tab_cmd_gen(c2, OUTPUT_MORE | KEY_STREAM0 | BR_IFSET, 96, > - base + i * 96, jump); > - > - /* Inform channel 1 and jump back to start */ > -cmd_tab_mask_end: > - /* ok, I just realized this is kind of flawed. */ > - /* this part is reached only after odd field clipmasking. */ > - /* wanna clean up? */ > - /* wait for field sync to be set */ > - /* corresponds to fsync (1) of ch1 */ > -/* B */ tab_cmd_dbdma(c2++, DBDMA_NOP | WAIT_IFCLR, 0); > - /* restart ch1, meant to clear any dead bit or something */ > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), > - PLANB_CLR(RUN)); > - tab_cmd_store(c2++, (unsigned)(&pb->planb_base_phys->ch1.control), > - PLANB_SET(RUN)); > - pb->overlay_last2 = c2; /* keep a pointer to the last command */ > - /* start over even field clipmasking */ > - tab_cmd_dbdma(c2, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->ch2_cmd)); > - > - eieio(); > - return; > -} > - > -/*********************************/ > -/* grabdisplay support functions */ > -/*********************************/ > - > -static int palette2fmt[] = { > - 0, > - PLANB_GRAY, > - 0, > - 0, > - 0, > - PLANB_COLOUR32, > - PLANB_COLOUR15, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > - 0, > -}; > - > -#define PLANB_PALETTE_MAX 15 > - > -static int vgrab(struct planb *pb, struct video_mmap *mp) > -{ > - unsigned int fr = mp->frame; > - unsigned int format; > - > - if(pb->rawbuf==NULL) { > - int err; > - if((err=grabbuf_alloc(pb))) > - return err; > - } > - > - IDEBUG("PlanB: grab %d: %dx%d(%u)\n", pb->grabbing, > - mp->width, mp->height, fr); > - > - if(pb->grabbing >= MAX_GBUFFERS) > - return -ENOBUFS; > - if(fr > (MAX_GBUFFERS - 1) || fr < 0) > - return -EINVAL; > - if(mp->height <= 0 || mp->width <= 0) > - return -EINVAL; > - if(mp->format < 0 || mp->format >= PLANB_PALETTE_MAX) > - return -EINVAL; > - if((format = palette2fmt[mp->format]) == 0) > - return -EINVAL; > - if (mp->height * mp->width * format > PLANB_MAX_FBUF) /* format = bpp */ > - return -EINVAL; > - > - planb_lock(pb); > - if(mp->width != pb->gwidth[fr] || mp->height != pb->gheight[fr] || > - format != pb->gfmt[fr] || (pb->gnorm_switch[fr])) { > - int i; > -#ifndef PLANB_GSCANLINE > - unsigned int osize = pb->gwidth[fr] * pb->gheight[fr] > - * pb->gfmt[fr]; > - unsigned int nsize = mp->width * mp->height * format; > -#endif > - > - IDEBUG("PlanB: gwidth = %d, gheight = %d, mp->format = %u\n", > - mp->width, mp->height, mp->format); > - > -#ifndef PLANB_GSCANLINE > - if(pb->gnorm_switch[fr]) > - nsize = 0; > - if (nsize < osize) { > - for(i = pb->gbuf_idx[fr]; osize > 0; i++) { > - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); > - osize -= PAGE_SIZE; > - } > - } > - for(i = pb->l_fr_addr_idx[fr]; i < pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]; i++) > - memset((void *)pb->rawbuf[i], 0, PAGE_SIZE); > -#else > -/* XXX TODO */ > -/* > - if(pb->gnorm_switch[fr]) > - memset((void *)pb->gbuffer[fr], 0, > - pb->gbytes_per_line * pb->gheight[fr]); > - else { > - if(mp-> > - for(i = 0; i < pb->gheight[fr]; i++) { > - memset((void *)(pb->gbuffer[fr] > - + pb->gbytes_per_line * i > - } > - } > -*/ > -#endif > - pb->gwidth[fr] = mp->width; > - pb->gheight[fr] = mp->height; > - pb->gfmt[fr] = format; > - pb->last_cmd[fr] = setup_grab_cmd(fr, pb); > - planb_pre_capture(fr, pb->gfmt[fr], pb); /* gfmt = bpp */ > - pb->need_pre_capture[fr] = 1; > - pb->gnorm_switch[fr] = 0; > - } else > - pb->need_pre_capture[fr] = 0; > - pb->frame_stat[fr] = GBUFFER_GRABBING; > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - > - IDEBUG("PlanB: ch1 inactive, initiating grabbing\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch1); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->pre_cmd[fr])); > - } else { > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - /* let's be on the safe side. here is not timing critical. */ > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), DBDMA_NOP, 0); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->cap_cmd[fr])); > - } > - planb_dbdma_restart(&pb->planb_base->ch1); > - pb->last_fr = fr; > - } else { > - int i; > - > - IDEBUG("PlanB: ch1 active, grabbing being queued\n"); > - > - if((pb->last_fr == -1) || ((pb->last_fr == -2) && > - overlay_is_active(pb))) { > - > - IDEBUG("PlanB: overlay is active, grabbing defered\n"); > - > - tab_cmd_dbdma(pb->last_cmd[fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_store(pb->pre_cmd[fr], > - virt_to_bus(&pb->overlay_last1->cmd_dep), > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - out_le32 (&pb->overlay_last1->cmd_dep, > - virt_to_bus(pb->pre_cmd[fr])); > - } else { > - tab_cmd_store(pb->cap_cmd[fr], > - virt_to_bus(&pb->overlay_last1->cmd_dep), > - virt_to_bus(pb->ch1_cmd)); > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - eieio(); > - out_le32 (&pb->overlay_last1->cmd_dep, > - virt_to_bus(pb->cap_cmd[fr])); > - } > - for(i = 0; overlay_is_active(pb) && i < 999; i++) > - IDEBUG("PlanB: waiting for overlay done\n"); > - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); > - pb->prev_last_fr = fr; > - pb->last_fr = -2; > - } else if(pb->last_fr == -2) { > - > - IDEBUG("PlanB: mixed mode detected, grabbing" > - " will be done before activating overlay\n"); > - > - tab_cmd_dbdma(pb->ch1_cmd, DBDMA_NOP, 0); > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->pre_cmd[fr])); > - eieio(); > - } else { > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - if(pb->gwidth[pb->prev_last_fr] != > - pb->gwidth[fr] > - || pb->gheight[pb->prev_last_fr] != > - pb->gheight[fr] > - || pb->gfmt[pb->prev_last_fr] != > - pb->gfmt[fr]) > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - else > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr] + 16)); > - tab_cmd_dbdma(pb->last_cmd[pb->prev_last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr])); > - eieio(); > - } > - tab_cmd_dbdma(pb->last_cmd[fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->ch1_cmd)); > - eieio(); > - pb->prev_last_fr = fr; > - pb->last_fr = -2; > - } else { > - > - IDEBUG("PlanB: active grabbing session detected\n"); > - > - if(pb->need_pre_capture[fr]) { > - > - IDEBUG("PlanB: padding pre-capture sequence\n"); > - > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->pre_cmd[fr])); > - eieio(); > - } else { > - tab_cmd_dbdma(pb->last_cmd[fr], DBDMA_STOP, 0); > - tab_cmd_dbdma(pb->cap_cmd[fr], DBDMA_NOP, 0); > - if(pb->gwidth[pb->last_fr] != pb->gwidth[fr] > - || pb->gheight[pb->last_fr] != > - pb->gheight[fr] > - || pb->gfmt[pb->last_fr] != > - pb->gfmt[fr]) > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP, 0); > - else > - tab_cmd_dbdma((pb->cap_cmd[fr] + 1), > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr] + 16)); > - tab_cmd_dbdma(pb->last_cmd[pb->last_fr], > - DBDMA_NOP | BR_ALWAYS, > - virt_to_bus(pb->cap_cmd[fr])); > - eieio(); > - } > - pb->last_fr = fr; > - } > - if(!(ACTIVE & in_le32(&pb->planb_base->ch1.status))) { > - > - IDEBUG("PlanB: became inactive in the mean time..." > - "reactivating\n"); > - > - planb_dbdma_stop(&pb->planb_base->ch1); > - out_le32 (&pb->planb_base->ch1.cmdptr, > - virt_to_bus(pb->cap_cmd[fr])); > - planb_dbdma_restart(&pb->planb_base->ch1); > - } > - } > - pb->grabbing++; > - planb_unlock(pb); > - > - return 0; > -} > - > -static void planb_pre_capture(int fr, int bpp, struct planb *pb) > -{ > - volatile struct dbdma_cmd *c1 = pb->pre_cmd[fr]; > - int interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; > - > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, > - bpp, 0, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered some problems\n"); > - tab_cmd_dbdma(pb->pre_cmd[fr] + 1, DBDMA_STOP, 0); > - return; > - } > - /* Sync to even field */ > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - /* For non-interlaced, we use even fields only */ > - if (pb->gheight[fr] <= pb->maxlines/2) > - goto cmd_tab_data_end; > - /* Sync to odd field */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > -cmd_tab_data_end: > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(pb->cap_cmd[fr])); > - > - eieio(); > -} > - > -static volatile struct dbdma_cmd *setup_grab_cmd(int fr, struct planb *pb) > -{ > - int i, bpp, count, nlines, stepsize, interlace; > -#ifdef PLANB_GSCANLINE > - int scanline; > -#else > - int nlpp, leftover1; > - unsigned long base; > -#endif > - unsigned long jump; > - int pagei; > - volatile struct dbdma_cmd *c1; > - volatile struct dbdma_cmd *jump_addr; > - > - c1 = pb->cap_cmd[fr]; > - interlace = (pb->gheight[fr] > pb->maxlines/2)? 1: 0; > - bpp = pb->gfmt[fr]; /* gfmt = bpp */ > - count = bpp * pb->gwidth[fr]; > - nlines = pb->gheight[fr]; > -#ifdef PLANB_GSCANLINE > - scanline = pb->gbytes_per_line; > -#else > - pb->lsize[fr] = count; > - pb->lnum[fr] = 0; > -#endif > - > - /* Do video in: */ > - > - /* Preamble commands: */ > - tab_cmd_dbdma(c1++, DBDMA_NOP, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, virt_to_bus(c1 + 16)); c1++; > - if((c1 = cmd_geo_setup(c1, pb->gwidth[fr], pb->gheight[fr], interlace, > - bpp, 0, pb)) == NULL) { > - printk(KERN_WARNING "PlanB: encountered serious problems\n"); > - tab_cmd_dbdma(pb->cap_cmd[fr] + 1, DBDMA_STOP, 0); > - return (pb->cap_cmd[fr] + 2); > - } > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.wait_sel), > - PLANB_SET(FIELD_SYNC)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFSET, virt_to_bus(c1-3)); c1++; > - tab_cmd_dbdma(c1++, DBDMA_NOP | INTR_ALWAYS, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - if (interlace) { > - stepsize = 2; > - jump_addr = c1 + TAB_FACTOR * (nlines + 1) / 2; > - } else { > - stepsize = 1; > - jump_addr = c1 + TAB_FACTOR * nlines; > - } > - jump = virt_to_bus(jump_addr); > - > - /* even field data: */ > - > - pagei = pb->gbuf_idx[fr]; > -#ifdef PLANB_GSCANLINE > - for (i = 0; i < nlines; i += stepsize) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pagei > - + i * scanline / PAGE_SIZE]), jump); > - } > -#else > - i = 0; > - leftover1 = 0; > - do { > - int j; > - > - base = virt_to_bus(pb->rawbuf[pagei]); > - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; > - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, > - count, base + count * j * stepsize + leftover1, jump); > - if(i < nlines) { > - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; > - > - if(lov0 == 0) > - leftover1 = 0; > - else { > - if(lov0 >= count) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, base > - + count * nlpp * stepsize + leftover1, jump); > - } else { > - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] > - + count * nlpp * stepsize + leftover1; > - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; > - pb->l_to_next_size[fr][pb->lnum[fr]] = count - lov0; > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]]), jump); > - if(++pb->lnum[fr] > MAX_LNUM) > - pb->lnum[fr]--; > - } > - leftover1 = count * stepsize - lov0; > - i += stepsize; > - } > - } > - pagei++; > - } while(i < nlines); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); > - c1 = jump_addr; > -#endif /* PLANB_GSCANLINE */ > - > - /* For non-interlaced, we use even fields only */ > - if (!interlace) > - goto cmd_tab_data_end; > - > - /* Sync to odd field */ > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFCLR, 0); > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(ODD_FIELD)); > - tab_cmd_dbdma(c1++, DBDMA_NOP | WAIT_IFSET, 0); > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_IFCLR, virt_to_bus(c1-3)); c1++; > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->ch1.br_sel), > - PLANB_SET(DMA_ABORT)); > - > - /* odd field data: */ > - jump_addr = c1 + TAB_FACTOR * nlines / 2; > - jump = virt_to_bus(jump_addr); > -#ifdef PLANB_GSCANLINE > - for (i = 1; i < nlines; i += stepsize) { > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pagei > - + i * scanline / PAGE_SIZE]), jump); > - } > -#else > - i = 1; > - leftover1 = 0; > - pagei = pb->gbuf_idx[fr]; > - if(nlines <= 1) > - goto skip; > - do { > - int j; > - > - base = virt_to_bus(pb->rawbuf[pagei]); > - nlpp = (PAGE_SIZE - leftover1) / count / stepsize; > - if(leftover1 >= count) { > - tab_cmd_gen(c1++, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + leftover1 - count, jump); > - i += stepsize; > - } > - for(j = 0; j < nlpp && i < nlines; j++, i += stepsize, c1++) > - tab_cmd_gen(c1, INPUT_MORE | KEY_STREAM0 | BR_IFSET, count, > - base + count * (j * stepsize + 1) + leftover1, jump); > - if(i < nlines) { > - int lov0 = PAGE_SIZE - count * nlpp * stepsize - leftover1; > - > - if(lov0 == 0) > - leftover1 = 0; > - else { > - if(lov0 > count) { > - pb->l_to_addr[fr][pb->lnum[fr]] = pb->rawbuf[pagei] > - + count * (nlpp * stepsize + 1) + leftover1; > - pb->l_to_next_idx[fr][pb->lnum[fr]] = pagei + 1; > - pb->l_to_next_size[fr][pb->lnum[fr]] = count * stepsize > - - lov0; > - tab_cmd_gen(c1++, INPUT_MORE | BR_IFSET, count, > - virt_to_bus(pb->rawbuf[pb->l_fr_addr_idx[fr] > - + pb->lnum[fr]]), jump); > - if(++pb->lnum[fr] > MAX_LNUM) > - pb->lnum[fr]--; > - i += stepsize; > - } > - leftover1 = count * stepsize - lov0; > - } > - } > - pagei++; > - } while(i < nlines); > -skip: > - tab_cmd_dbdma(c1, DBDMA_NOP | BR_ALWAYS, jump); > - c1 = jump_addr; > -#endif /* PLANB_GSCANLINE */ > - > -cmd_tab_data_end: > - tab_cmd_store(c1++, (unsigned)(&pb->planb_base_phys->intr_stat), > - (fr << 9) | PLANB_FRM_IRQ | PLANB_GEN_IRQ); > - /* stop it */ > - tab_cmd_dbdma(c1, DBDMA_STOP, 0); > - > - eieio(); > - return c1; > -} > - > -static void planb_irq(int irq, void *dev_id) > -{ > - unsigned int stat, astat; > - struct planb *pb = (struct planb *)dev_id; > - > - IDEBUG("PlanB: planb_irq()\n"); > - > - /* get/clear interrupt status bits */ > - eieio(); > - stat = in_le32(&pb->planb_base->intr_stat); > - astat = stat & pb->intr_mask; > - out_le32(&pb->planb_base->intr_stat, PLANB_FRM_IRQ > - & ~astat & stat & ~PLANB_GEN_IRQ); > - IDEBUG("PlanB: stat = %X, astat = %X\n", stat, astat); > - > - if(astat & PLANB_FRM_IRQ) { > - unsigned int fr = stat >> 9; > -#ifndef PLANB_GSCANLINE > - int i; > -#endif > - IDEBUG("PlanB: PLANB_FRM_IRQ\n"); > - > - pb->gcount++; > - > - IDEBUG("PlanB: grab %d: fr = %d, gcount = %d\n", > - pb->grabbing, fr, pb->gcount); > -#ifndef PLANB_GSCANLINE > - IDEBUG("PlanB: %d * %d bytes are being copied over\n", > - pb->lnum[fr], pb->lsize[fr]); > - for(i = 0; i < pb->lnum[fr]; i++) { > - int first = pb->lsize[fr] - pb->l_to_next_size[fr][i]; > - > - memcpy(pb->l_to_addr[fr][i], > - pb->rawbuf[pb->l_fr_addr_idx[fr] + i], > - first); > - memcpy(pb->rawbuf[pb->l_to_next_idx[fr][i]], > - pb->rawbuf[pb->l_fr_addr_idx[fr] + i] + first, > - pb->l_to_next_size[fr][i]); > - } > -#endif > - pb->frame_stat[fr] = GBUFFER_DONE; > - pb->grabbing--; > - wake_up_interruptible(&pb->capq); > - return; > - } > - /* incorrect interrupts? */ > - pb->intr_mask = PLANB_CLR_IRQ; > - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - printk(KERN_ERR "PlanB: IRQ lockup, cleared intrrupts" > - " unconditionally\n"); > -} > - > -/******************************* > - * Device Operations functions * > - *******************************/ > - > -static int planb_open(struct video_device *dev, int mode) > -{ > - struct planb *pb = (struct planb *)dev; > - > - if (pb->user == 0) { > - int err; > - if((err = planb_prepare_open(pb)) != 0) > - return err; > - } > - pb->user++; > - > - DEBUG("PlanB: device opened\n"); > - return 0; > -} > - > -static void planb_close(struct video_device *dev) > -{ > - struct planb *pb = (struct planb *)dev; > - > - if(pb->user < 1) /* ??? */ > - return; > - planb_lock(pb); > - if (pb->user == 1) { > - if (pb->overlay) { > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - pb->overlay = 0; > - } > - planb_prepare_close(pb); > - } > - pb->user--; > - planb_unlock(pb); > - > - DEBUG("PlanB: device closed\n"); > -} > - > -static long planb_read(struct video_device *v, char *buf, unsigned long count, > - int nonblock) > -{ > - DEBUG("planb: read request\n"); > - return -EINVAL; > -} > - > -static long planb_write(struct video_device *v, const char *buf, > - unsigned long count, int nonblock) > -{ > - DEBUG("planb: write request\n"); > - return -EINVAL; > -} > - > -static int planb_ioctl(struct video_device *dev, unsigned int cmd, void *arg) > -{ > - struct planb *pb=(struct planb *)dev; > - > - switch (cmd) > - { > - case VIDIOCGCAP: > - { > - struct video_capability b; > - > - DEBUG("PlanB: IOCTL VIDIOCGCAP\n"); > - > - strcpy (b.name, pb->video_dev.name); > - b.type = VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | > - VID_TYPE_FRAMERAM | VID_TYPE_SCALES | > - VID_TYPE_CAPTURE; > - b.channels = 2; /* composite & svhs */ > - b.audios = 0; > - b.maxwidth = PLANB_MAXPIXELS; > - b.maxheight = PLANB_MAXLINES; > - b.minwidth = 32; /* wild guess */ > - b.minheight = 32; > - if (copy_to_user(arg,&b,sizeof(b))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSFBUF: > - { > - struct video_buffer v; > - unsigned short bpp; > - unsigned int fmt; > - > - DEBUG("PlanB: IOCTL VIDIOCSFBUF\n"); > - > - if (!capable(CAP_SYS_ADMIN) > - || !capable(CAP_SYS_RAWIO)) > - return -EPERM; > - if (copy_from_user(&v, arg,sizeof(v))) > - return -EFAULT; > - planb_lock(pb); > - switch(v.depth) { > - case 8: > - bpp = 1; > - fmt = PLANB_GRAY; > - break; > - case 15: > - case 16: > - bpp = 2; > - fmt = PLANB_COLOUR15; > - break; > - case 24: > - case 32: > - bpp = 4; > - fmt = PLANB_COLOUR32; > - break; > - default: > - planb_unlock(pb); > - return -EINVAL; > - } > - if (bpp * v.width > v.bytesperline) { > - planb_unlock(pb); > - return -EINVAL; > - } > - pb->win.bpp = bpp; > - pb->win.color_fmt = fmt; > - pb->frame_buffer_phys = (unsigned long) v.base; > - pb->win.sheight = v.height; > - pb->win.swidth = v.width; > - pb->picture.depth = pb->win.depth = v.depth; > - pb->win.bpl = pb->win.bpp * pb->win.swidth; > - pb->win.pad = v.bytesperline - pb->win.bpl; > - > - DEBUG("PlanB: Display at %p is %d by %d, bytedepth %d," > - " bpl %d (+ %d)\n", v.base, v.width,v.height, > - pb->win.bpp, pb->win.bpl, pb->win.pad); > - > - pb->cmd_buff_inited = 0; > - if(pb->overlay) { > - suspend_overlay(pb); > - fill_cmd_buff(pb); > - resume_overlay(pb); > - } > - planb_unlock(pb); > - return 0; > - } > - case VIDIOCGFBUF: > - { > - struct video_buffer v; > - > - DEBUG("PlanB: IOCTL VIDIOCGFBUF\n"); > - > - v.base = (void *)pb->frame_buffer_phys; > - v.height = pb->win.sheight; > - v.width = pb->win.swidth; > - v.depth = pb->win.depth; > - v.bytesperline = pb->win.bpl + pb->win.pad; > - if (copy_to_user(arg, &v, sizeof(v))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCCAPTURE: > - { > - int i; > - > - if(copy_from_user(&i, arg, sizeof(i))) > - return -EFAULT; > - if(i==0) { > - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Stop\n"); > - > - if (!(pb->overlay)) > - return 0; > - planb_lock(pb); > - pb->overlay = 0; > - overlay_stop(pb); > - planb_unlock(pb); > - } else { > - DEBUG("PlanB: IOCTL VIDIOCCAPTURE Start\n"); > - > - if (pb->frame_buffer_phys == 0 || > - pb->win.width == 0 || > - pb->win.height == 0) > - return -EINVAL; > - if (pb->overlay) > - return 0; > - planb_lock(pb); > - pb->overlay = 1; > - if(!(pb->cmd_buff_inited)) > - fill_cmd_buff(pb); > - overlay_start(pb); > - planb_unlock(pb); > - } > - return 0; > - } > - case VIDIOCGCHAN: > - { > - struct video_channel v; > - > - DEBUG("PlanB: IOCTL VIDIOCGCHAN\n"); > - > - if(copy_from_user(&v, arg,sizeof(v))) > - return -EFAULT; > - v.flags = 0; > - v.tuners = 0; > - v.type = VIDEO_TYPE_CAMERA; > - v.norm = pb->win.norm; > - switch(v.channel) > - { > - case 0: > - strcpy(v.name,"Composite"); > - break; > - case 1: > - strcpy(v.name,"SVHS"); > - break; > - default: > - return -EINVAL; > - break; > - } > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - > - return 0; > - } > - case VIDIOCSCHAN: > - { > - struct video_channel v; > - > - DEBUG("PlanB: IOCTL VIDIOCSCHAN\n"); > - > - if(copy_from_user(&v, arg, sizeof(v))) > - return -EFAULT; > - > - if (v.norm != pb->win.norm) { > - int i, maxlines; > - > - switch (v.norm) > - { > - case VIDEO_MODE_PAL: > - case VIDEO_MODE_SECAM: > - maxlines = PLANB_MAXLINES; > - break; > - case VIDEO_MODE_NTSC: > - maxlines = PLANB_NTSC_MAXLINES; > - break; > - default: > - return -EINVAL; > - break; > - } > - planb_lock(pb); > - /* empty the grabbing queue */ > - wait_event(pb->capq, !pb->grabbing); > - pb->maxlines = maxlines; > - pb->win.norm = v.norm; > - /* Stop overlay if running */ > - suspend_overlay(pb); > - for(i = 0; i < MAX_GBUFFERS; i++) > - pb->gnorm_switch[i] = 1; > - /* I know it's an overkill, but.... */ > - fill_cmd_buff(pb); > - /* ok, now init it accordingly */ > - saa_init_regs (pb); > - /* restart overlay if it was running */ > - resume_overlay(pb); > - planb_unlock(pb); > - } > - > - switch(v.channel) > - { > - case 0: /* Composite */ > - saa_set (SAA7196_IOCC, > - ((saa_regs[pb->win.norm][SAA7196_IOCC] & > - ~7) | 3), pb); > - break; > - case 1: /* SVHS */ > - saa_set (SAA7196_IOCC, > - ((saa_regs[pb->win.norm][SAA7196_IOCC] & > - ~7) | 4), pb); > - break; > - default: > - return -EINVAL; > - break; > - } > - > - return 0; > - } > - case VIDIOCGPICT: > - { > - struct video_picture vp = pb->picture; > - > - DEBUG("PlanB: IOCTL VIDIOCGPICT\n"); > - > - switch(pb->win.color_fmt) { > - case PLANB_GRAY: > - vp.palette = VIDEO_PALETTE_GREY; > - case PLANB_COLOUR15: > - vp.palette = VIDEO_PALETTE_RGB555; > - break; > - case PLANB_COLOUR32: > - vp.palette = VIDEO_PALETTE_RGB32; > - break; > - default: > - vp.palette = 0; > - break; > - } > - > - if(copy_to_user(arg,&vp,sizeof(vp))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSPICT: > - { > - struct video_picture vp; > - > - DEBUG("PlanB: IOCTL VIDIOCSPICT\n"); > - > - if(copy_from_user(&vp,arg,sizeof(vp))) > - return -EFAULT; > - pb->picture = vp; > - /* Should we do sanity checks here? */ > - saa_set (SAA7196_BRIG, (unsigned char) > - ((pb->picture.brightness) >> 8), pb); > - saa_set (SAA7196_HUEC, (unsigned char) > - ((pb->picture.hue) >> 8) ^ 0x80, pb); > - saa_set (SAA7196_CSAT, (unsigned char) > - ((pb->picture.colour) >> 9), pb); > - saa_set (SAA7196_CONT, (unsigned char) > - ((pb->picture.contrast) >> 9), pb); > - > - return 0; > - } > - case VIDIOCSWIN: > - { > - struct video_window vw; > - struct video_clip clip; > - int i; > - > - DEBUG("PlanB: IOCTL VIDIOCSWIN\n"); > - > - if(copy_from_user(&vw,arg,sizeof(vw))) > - return -EFAULT; > - > - planb_lock(pb); > - /* Stop overlay if running */ > - suspend_overlay(pb); > - pb->win.interlace = (vw.height > pb->maxlines/2)? 1: 0; > - if (pb->win.x != vw.x || > - pb->win.y != vw.y || > - pb->win.width != vw.width || > - pb->win.height != vw.height || > - !pb->cmd_buff_inited) { > - pb->win.x = vw.x; > - pb->win.y = vw.y; > - pb->win.width = vw.width; > - pb->win.height = vw.height; > - fill_cmd_buff(pb); > - } > - /* Reset clip mask */ > - memset ((void *) pb->mask, 0xff, (pb->maxlines > - * ((PLANB_MAXPIXELS + 7) & ~7)) / 8); > - /* Add any clip rects */ > - for (i = 0; i < vw.clipcount; i++) { > - if (copy_from_user(&clip, vw.clips + i, > - sizeof(struct video_clip))) > - return -EFAULT; > - add_clip(pb, &clip); > - } > - /* restart overlay if it was running */ > - resume_overlay(pb); > - planb_unlock(pb); > - return 0; > - } > - case VIDIOCGWIN: > - { > - struct video_window vw; > - > - DEBUG("PlanB: IOCTL VIDIOCGWIN\n"); > - > - vw.x=pb->win.x; > - vw.y=pb->win.y; > - vw.width=pb->win.width; > - vw.height=pb->win.height; > - vw.chromakey=0; > - vw.flags=0; > - if(pb->win.interlace) > - vw.flags|=VIDEO_WINDOW_INTERLACE; > - if(copy_to_user(arg,&vw,sizeof(vw))) > - return -EFAULT; > - return 0; > - } > - case VIDIOCSYNC: { > - int i; > - > - IDEBUG("PlanB: IOCTL VIDIOCSYNC\n"); > - > - if(copy_from_user((void *)&i,arg,sizeof(int))) > - return -EFAULT; > - > - IDEBUG("PlanB: sync to frame %d\n", i); > - > - if(i > (MAX_GBUFFERS - 1) || i < 0) > - return -EINVAL; > -chk_grab: > - switch (pb->frame_stat[i]) { > - case GBUFFER_UNUSED: > - return -EINVAL; > - case GBUFFER_GRABBING: > - IDEBUG("PlanB: waiting for grab" > - " done (%d)\n", i); > - interruptible_sleep_on(&pb->capq); > - if(signal_pending(current)) > - return -EINTR; > - goto chk_grab; > - case GBUFFER_DONE: > - pb->frame_stat[i] = GBUFFER_UNUSED; > - break; > - } > - return 0; > - } > - > - case VIDIOCMCAPTURE: > - { > - struct video_mmap vm; > - volatile unsigned int status; > - > - IDEBUG("PlanB: IOCTL VIDIOCMCAPTURE\n"); > - > - if(copy_from_user((void *) &vm,(void *)arg,sizeof(vm))) > - return -EFAULT; > - status = pb->frame_stat[vm.frame]; > - if (status != GBUFFER_UNUSED) > - return -EBUSY; > - > - return vgrab(pb, &vm); > - } > - > - case VIDIOCGMBUF: > - { > - int i; > - struct video_mbuf vm; > - > - DEBUG("PlanB: IOCTL VIDIOCGMBUF\n"); > - > - memset(&vm, 0 , sizeof(vm)); > - vm.size = PLANB_MAX_FBUF * MAX_GBUFFERS; > - vm.frames = MAX_GBUFFERS; > - for(i = 0; i - vm.offsets[i] = PLANB_MAX_FBUF * i; > - if(copy_to_user((void *)arg, (void *)&vm, sizeof(vm))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCGSAAREGS: > - { > - struct planb_saa_regs preg; > - > - DEBUG("PlanB: IOCTL PLANBIOCGSAAREGS\n"); > - > - if(copy_from_user(&preg, arg, sizeof(preg))) > - return -EFAULT; > - if(preg.addr >= SAA7196_NUMREGS) > - return -EINVAL; > - preg.val = saa_regs[pb->win.norm][preg.addr]; > - if(copy_to_user((void *)arg, (void *)&preg, > - sizeof(preg))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCSSAAREGS: > - { > - struct planb_saa_regs preg; > - > - DEBUG("PlanB: IOCTL PLANBIOCSSAAREGS\n"); > - > - if(copy_from_user(&preg, arg, sizeof(preg))) > - return -EFAULT; > - if(preg.addr >= SAA7196_NUMREGS) > - return -EINVAL; > - saa_set (preg.addr, preg.val, pb); > - return 0; > - } > - > - case PLANBIOCGSTAT: > - { > - struct planb_stat_regs pstat; > - > - DEBUG("PlanB: IOCTL PLANBIOCGSTAT\n"); > - > - pstat.ch1_stat = in_le32(&pb->planb_base->ch1.status); > - pstat.ch2_stat = in_le32(&pb->planb_base->ch2.status); > - pstat.saa_stat0 = saa_status(0, pb); > - pstat.saa_stat1 = saa_status(1, pb); > - > - if(copy_to_user((void *)arg, (void *)&pstat, > - sizeof(pstat))) > - return -EFAULT; > - return 0; > - } > - > - case PLANBIOCSMODE: { > - int v; > - > - DEBUG("PlanB: IOCTL PLANBIOCSMODE\n"); > - > - if(copy_from_user(&v, arg, sizeof(v))) > - return -EFAULT; > - > - switch(v) > - { > - case PLANB_TV_MODE: > - saa_set (SAA7196_STDC, > - (saa_regs[pb->win.norm][SAA7196_STDC] & > - 0x7f), pb); > - break; > - case PLANB_VTR_MODE: > - saa_set (SAA7196_STDC, > - (saa_regs[pb->win.norm][SAA7196_STDC] | > - 0x80), pb); > - break; > - default: > - return -EINVAL; > - break; > - } > - pb->win.mode = v; > - return 0; > - } > - case PLANBIOCGMODE: { > - int v=pb->win.mode; > - > - DEBUG("PlanB: IOCTL PLANBIOCGMODE\n"); > - > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - return 0; > - } > -#ifdef PLANB_GSCANLINE > - case PLANBG_GRAB_BPL: { > - int v=pb->gbytes_per_line; > - > - DEBUG("PlanB: IOCTL PLANBG_GRAB_BPL\n"); > - > - if(copy_to_user(arg,&v,sizeof(v))) > - return -EFAULT; > - return 0; > - } > -#endif /* PLANB_GSCANLINE */ > - case PLANB_INTR_DEBUG: { > - int i; > - > - DEBUG("PlanB: IOCTL PLANB_INTR_DEBUG\n"); > - > - if(copy_from_user(&i, arg, sizeof(i))) > - return -EFAULT; > - > - /* avoid hang ups all together */ > - for (i = 0; i < MAX_GBUFFERS; i++) { > - if(pb->frame_stat[i] == GBUFFER_GRABBING) { > - pb->frame_stat[i] = GBUFFER_DONE; > - } > - } > - if(pb->grabbing) > - pb->grabbing--; > - wake_up_interruptible(&pb->capq); > - return 0; > - } > - case PLANB_INV_REGS: { > - int i; > - struct planb_any_regs any; > - > - DEBUG("PlanB: IOCTL PLANB_INV_REGS\n"); > - > - if(copy_from_user(&any, arg, sizeof(any))) > - return -EFAULT; > - if(any.offset < 0 || any.offset + any.bytes > 0x400) > - return -EINVAL; > - if(any.bytes > 128) > - return -EINVAL; > - for (i = 0; i < any.bytes; i++) { > - any.data[i] = > - in_8((unsigned char *)pb->planb_base > - + any.offset + i); > - } > - if(copy_to_user(arg,&any,sizeof(any))) > - return -EFAULT; > - return 0; > - } > - default: > - { > - DEBUG("PlanB: Unimplemented IOCTL\n"); > - return -ENOIOCTLCMD; > - } > - /* Some IOCTLs are currently unsupported on PlanB */ > - case VIDIOCGTUNER: { > - DEBUG("PlanB: IOCTL VIDIOCGTUNER\n"); > - goto unimplemented; } > - case VIDIOCSTUNER: { > - DEBUG("PlanB: IOCTL VIDIOCSTUNER\n"); > - goto unimplemented; } > - case VIDIOCSFREQ: { > - DEBUG("PlanB: IOCTL VIDIOCSFREQ\n"); > - goto unimplemented; } > - case VIDIOCGFREQ: { > - DEBUG("PlanB: IOCTL VIDIOCGFREQ\n"); > - goto unimplemented; } > - case VIDIOCKEY: { > - DEBUG("PlanB: IOCTL VIDIOCKEY\n"); > - goto unimplemented; } > - case VIDIOCSAUDIO: { > - DEBUG("PlanB: IOCTL VIDIOCSAUDIO\n"); > - goto unimplemented; } > - case VIDIOCGAUDIO: { > - DEBUG("PlanB: IOCTL VIDIOCGAUDIO\n"); > - goto unimplemented; } > -unimplemented: > - DEBUG(" Unimplemented\n"); > - return -ENOIOCTLCMD; > - } > - return 0; > -} > - > -static int planb_mmap(struct vm_area_struct *vma, struct video_device *dev, const char *adr, unsigned long size) > -{ > - int i; > - struct planb *pb = (struct planb *)dev; > - unsigned long start = (unsigned long)adr; > - > - if (size > MAX_GBUFFERS * PLANB_MAX_FBUF) > - return -EINVAL; > - if (!pb->rawbuf) { > - int err; > - if((err=grabbuf_alloc(pb))) > - return err; > - } > - for (i = 0; i < pb->rawbuf_size; i++) { > - unsigned long pfn; > - > - pfn = virt_to_phys((void *)pb->rawbuf[i]) >> PAGE_SHIFT; > - if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED)) > - return -EAGAIN; > - start += PAGE_SIZE; > - if (size <= PAGE_SIZE) > - break; > - size -= PAGE_SIZE; > - } > - return 0; > -} > - > -static struct video_device planb_template= > -{ > - .owner = THIS_MODULE, > - .name = PLANB_DEVICE_NAME, > - .type = VID_TYPE_OVERLAY, > - .hardware = VID_HARDWARE_PLANB, > - .open = planb_open, > - .close = planb_close, > - .read = planb_read, > - .write = planb_write, > - .ioctl = planb_ioctl, > - .mmap = planb_mmap, /* mmap? */ > -}; > - > -static int init_planb(struct planb *pb) > -{ > - unsigned char saa_rev; > - int i, result; > - > - memset ((void *) &pb->win, 0, sizeof (struct planb_window)); > - /* Simple sanity check */ > - if(def_norm >= NUM_SUPPORTED_NORM || def_norm < 0) { > - printk(KERN_ERR "PlanB: Option(s) invalid\n"); > - return -2; > - } > - pb->win.norm = def_norm; > - pb->win.mode = PLANB_TV_MODE; /* TV mode */ > - pb->win.interlace=1; > - pb->win.x=0; > - pb->win.y=0; > - pb->win.width=768; /* 640 */ > - pb->win.height=576; /* 480 */ > - pb->maxlines=576; > -#if 0 > - btv->win.cropwidth=768; /* 640 */ > - btv->win.cropheight=576; /* 480 */ > - btv->win.cropx=0; > - btv->win.cropy=0; > -#endif > - pb->win.pad=0; > - pb->win.bpp=4; > - pb->win.depth=32; > - pb->win.color_fmt=PLANB_COLOUR32; > - pb->win.bpl=1024*pb->win.bpp; > - pb->win.swidth=1024; > - pb->win.sheight=768; > -#ifdef PLANB_GSCANLINE > - if((pb->gbytes_per_line = PLANB_MAXPIXELS * 4) > PAGE_SIZE > - || (pb->gbytes_per_line <= 0)) > - return -3; > - else { > - /* page align pb->gbytes_per_line for DMA purpose */ > - for(i = PAGE_SIZE; pb->gbytes_per_line < (i>>1);) > - i>>=1; > - pb->gbytes_per_line = i; > - } > -#endif > - pb->tab_size = PLANB_MAXLINES + 40; > - pb->suspend = 0; > - mutex_init(&pb->lock); > - pb->ch1_cmd = 0; > - pb->ch2_cmd = 0; > - pb->mask = 0; > - pb->priv_space = 0; > - pb->offset = 0; > - pb->user = 0; > - pb->overlay = 0; > - init_waitqueue_head(&pb->suspendq); > - pb->cmd_buff_inited = 0; > - pb->frame_buffer_phys = 0; > - > - /* Reset DMA controllers */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - saa_rev = (saa_status(0, pb) & 0xf0) >> 4; > - printk(KERN_INFO "PlanB: SAA7196 video processor rev. %d\n", saa_rev); > - /* Initialize the SAA registers in memory and on chip */ > - saa_init_regs (pb); > - > - /* clear interrupt mask */ > - pb->intr_mask = PLANB_CLR_IRQ; > - > - result = request_irq(pb->irq, planb_irq, 0, "PlanB", (void *)pb); > - if (result < 0) { > - if (result==-EINVAL) > - printk(KERN_ERR "PlanB: Bad irq number (%d) " > - "or handler\n", (int)pb->irq); > - else if (result==-EBUSY) > - printk(KERN_ERR "PlanB: I don't know why, " > - "but IRQ %d is busy\n", (int)pb->irq); > - return result; > - } > - disable_irq(pb->irq); > - > - /* Now add the template and register the device unit. */ > - memcpy(&pb->video_dev,&planb_template,sizeof(planb_template)); > - > - pb->picture.brightness=0x90<<8; > - pb->picture.contrast = 0x70 << 8; > - pb->picture.colour = 0x70<<8; > - pb->picture.hue = 0x8000; > - pb->picture.whiteness = 0; > - pb->picture.depth = pb->win.depth; > - > - pb->frame_stat=NULL; > - init_waitqueue_head(&pb->capq); > - for(i=0; i - pb->gbuf_idx[i] = PLANB_MAX_FBUF * i / PAGE_SIZE; > - pb->gwidth[i]=0; > - pb->gheight[i]=0; > - pb->gfmt[i]=0; > - pb->cap_cmd[i]=NULL; > -#ifndef PLANB_GSCANLINE > - pb->l_fr_addr_idx[i] = MAX_GBUFFERS * (PLANB_MAX_FBUF > - / PAGE_SIZE + 1) + MAX_LNUM * i; > - pb->lsize[i] = 0; > - pb->lnum[i] = 0; > -#endif > - } > - pb->rawbuf=NULL; > - pb->grabbing=0; > - > - /* enable interrupts */ > - out_le32(&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - pb->intr_mask = PLANB_FRM_IRQ; > - enable_irq(pb->irq); > - > - if(video_register_device(&pb->video_dev, VFL_TYPE_GRABBER, video_nr)<0) > - return -1; > - > - return 0; > -} > - > -/* > - * Scan for a PlanB controller, request the irq and map the io memory > - */ > - > -static int find_planb(void) > -{ > - struct planb *pb; > - struct device_node *planb_devices; > - unsigned char dev_fn, confreg, bus; > - unsigned int old_base, new_base; > - unsigned int irq; > - struct pci_dev *pdev; > - int rc; > - > - if (!machine_is(powermac)) > - return 0; > - > - planb_devices = find_devices("planb"); > - if (planb_devices == 0) { > - planb_num=0; > - printk(KERN_WARNING "PlanB: no device found!\n"); > - return planb_num; > - } > - > - if (planb_devices->next != NULL) > - printk(KERN_ERR "Warning: only using first PlanB device!\n"); > - pb = &planbs[0]; > - planb_num = 1; > - > - if (planb_devices->n_addrs != 1) { > - printk (KERN_WARNING "PlanB: expecting 1 address for planb " > - "(got %d)", planb_devices->n_addrs); > - return 0; > - } > - > - if (planb_devices->n_intrs == 0) { > - printk(KERN_WARNING "PlanB: no intrs for device %s\n", > - planb_devices->full_name); > - return 0; > - } else { > - irq = planb_devices->intrs[0].line; > - } > - > - /* Initialize PlanB's PCI registers */ > - > - /* There is a bug with the way OF assigns addresses > - to the devices behind the chaos bridge. > - control needs only 0x1000 of space, but decodes only > - the upper 16 bits. It therefore occupies a full 64K. > - OF assigns the planb controller memory within this space; > - so we need to change that here in order to access planb. */ > - > - /* We remap to 0xf1000000 in hope that nobody uses it ! */ > - > - bus = (planb_devices->addrs[0].space >> 16) & 0xff; > - dev_fn = (planb_devices->addrs[0].space >> 8) & 0xff; > - confreg = planb_devices->addrs[0].space & 0xff; > - old_base = planb_devices->addrs[0].address; > - new_base = 0xf1000000; > - > - DEBUG("PlanB: Found on bus %d, dev %d, func %d, " > - "membase 0x%x (base reg. 0x%x)\n", > - bus, PCI_SLOT(dev_fn), PCI_FUNC(dev_fn), old_base, confreg); > - > - pdev = pci_find_slot (bus, dev_fn); > - if (!pdev) { > - printk(KERN_ERR "planb: cannot find slot\n"); > - goto err_out; > - } > - > - /* Enable response in memory space, bus mastering, > - use memory write and invalidate */ > - rc = pci_enable_device(pdev); > - if (rc) { > - printk(KERN_ERR "planb: cannot enable PCI device %s\n", > - pci_name(pdev)); > - goto err_out; > - } > - rc = pci_set_mwi(pdev); > - if (rc) { > - printk(KERN_ERR "planb: cannot enable MWI on PCI device %s\n", > - pci_name(pdev)); > - goto err_out_disable; > - } > - pci_set_master(pdev); > - > - /* Set the new base address */ > - pci_write_config_dword (pdev, confreg, new_base); > - > - planb_regs = (volatile struct planb_registers *) > - ioremap (new_base, 0x400); > - pb->planb_base = planb_regs; > - pb->planb_base_phys = (struct planb_registers *)new_base; > - pb->irq = irq; > - > - return planb_num; > - > -err_out_disable: > - pci_disable_device(pdev); > -err_out: > - /* FIXME handle error */ /* comment moved from pci_find_slot, above */ > - return 0; > -} > - > -static void release_planb(void) > -{ > - int i; > - struct planb *pb; > - > - for (i=0;i - { > - pb=&planbs[i]; > - > - /* stop and flash DMAs unconditionally */ > - planb_dbdma_stop(&pb->planb_base->ch2); > - planb_dbdma_stop(&pb->planb_base->ch1); > - > - /* clear and free interrupts */ > - pb->intr_mask = PLANB_CLR_IRQ; > - out_le32 (&pb->planb_base->intr_stat, PLANB_CLR_IRQ); > - free_irq(pb->irq, pb); > - > - /* make sure all allocated memory are freed */ > - planb_prepare_close(pb); > - > - printk(KERN_INFO "PlanB: unregistering with v4l\n"); > - video_unregister_device(&pb->video_dev); > - > - /* note that iounmap() does nothing on the PPC right now */ > - iounmap ((void *)pb->planb_base); > - } > -} > - > -static int __init init_planbs(void) > -{ > - int i; > - > - if (find_planb()<=0) > - return -EIO; > - > - for (i=0; i - if (init_planb(&planbs[i])<0) { > - printk(KERN_ERR "PlanB: error registering device %d" > - " with v4l\n", i); > - release_planb(); > - return -EIO; > - } > - printk(KERN_INFO "PlanB: registered device %d with v4l\n", i); > - } > - return 0; > -} > - > -static void __exit exit_planbs(void) > -{ > - release_planb(); > -} > - > -module_init(init_planbs); > -module_exit(exit_planbs); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/