mirror of https://gitee.com/openkylin/linux.git
2074 lines
54 KiB
C
2074 lines
54 KiB
C
/*
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zr36120.c - Zoran 36120/36125 based framegrabbers
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Copyright (C) 1998-1999 Pauline Middelink <middelin@polyware.nl>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/kernel.h>
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#include <linux/major.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/mm.h>
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#include <linux/pci.h>
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#include <linux/signal.h>
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#include <linux/wait.h>
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#include <asm/io.h>
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#include <asm/pgtable.h>
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#include <asm/page.h>
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#include <linux/sched.h>
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#include <linux/video_decoder.h>
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#include <asm/uaccess.h>
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#include "tuner.h"
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#include "zr36120.h"
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#include "zr36120_mem.h"
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/* mark an required function argument unused - lintism */
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#define UNUSED(x) (void)(x)
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/* sensible default */
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#ifndef CARDTYPE
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#define CARDTYPE 0
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#endif
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/* Anybody who uses more than four? */
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#define ZORAN_MAX 4
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static unsigned int triton1=0; /* triton1 chipset? */
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static unsigned int cardtype[ZORAN_MAX]={ [ 0 ... ZORAN_MAX-1 ] = CARDTYPE };
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static int video_nr = -1;
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static int vbi_nr = -1;
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static struct pci_device_id zr36120_pci_tbl[] = {
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{ PCI_VENDOR_ID_ZORAN,PCI_DEVICE_ID_ZORAN_36120,
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(pci, zr36120_pci_tbl);
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MODULE_AUTHOR("Pauline Middelink <middelin@polyware.nl>");
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MODULE_DESCRIPTION("Zoran ZR36120 based framegrabber");
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MODULE_LICENSE("GPL");
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MODULE_PARM(triton1,"i");
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MODULE_PARM(cardtype,"1-" __MODULE_STRING(ZORAN_MAX) "i");
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MODULE_PARM(video_nr,"i");
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MODULE_PARM(vbi_nr,"i");
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static int zoran_cards;
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static struct zoran zorans[ZORAN_MAX];
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/*
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* the meaning of each element can be found in zr36120.h
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* Determining the value of gpdir/gpval can be tricky. The
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* best way is to run the card under the original software
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* and read the values from the general purpose registers
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* 0x28 and 0x2C. How you do that is left as an exercise
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* to the impatient reader :)
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*/
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#define T 1 /* to separate the bools from the ints */
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#define F 0
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static struct tvcard tvcards[] = {
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/* reported working by <middelin@polyware.nl> */
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/*0*/ { "Trust Victor II",
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2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
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/* reported working by <Michael.Paxton@aihw.gov.au> */
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/*1*/ { "Aitech WaveWatcher TV-PCI",
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3, 0, T, F, T, T, 0x7F, 0x80, { 1, TUNER(3), SVHS(6) }, { 0 } },
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/* reported working by ? */
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/*2*/ { "Genius Video Wonder PCI Video Capture Card",
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2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
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/* reported working by <Pascal.Gabriel@wanadoo.fr> */
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/*3*/ { "Guillemot Maxi-TV PCI",
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2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
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/* reported working by "Craig Whitmore <lennon@igrin.co.nz> */
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/*4*/ { "Quadrant Buster",
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3, 3, T, F, T, T, 0x7F, 0x80, { SVHS(1), TUNER(2), 3 }, { 1, 2, 3 } },
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/* a debug entry which has all inputs mapped */
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/*5*/ { "ZR36120 based framegrabber (all inputs enabled)",
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6, 0, T, T, T, T, 0x7F, 0x80, { 1, 2, 3, 4, 5, 6 }, { 0 } }
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};
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#undef T
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#undef F
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#define NRTVCARDS (sizeof(tvcards)/sizeof(tvcards[0]))
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#ifdef __sparc__
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#define ENDIANESS 0
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#else
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#define ENDIANESS ZORAN_VFEC_LE
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#endif
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static struct { const char name[8]; uint mode; uint bpp; } palette2fmt[] = {
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/* n/a */ { "n/a", 0, 0 },
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/* GREY */ { "GRAY", 0, 0 },
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/* HI240 */ { "HI240", 0, 0 },
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/* RGB565 */ { "RGB565", ZORAN_VFEC_RGB_RGB565|ENDIANESS, 2 },
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/* RGB24 */ { "RGB24", ZORAN_VFEC_RGB_RGB888|ENDIANESS|ZORAN_VFEC_PACK24, 3 },
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/* RGB32 */ { "RGB32", ZORAN_VFEC_RGB_RGB888|ENDIANESS, 4 },
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/* RGB555 */ { "RGB555", ZORAN_VFEC_RGB_RGB555|ENDIANESS, 2 },
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/* YUV422 */ { "YUV422", ZORAN_VFEC_RGB_YUV422|ENDIANESS, 2 },
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/* YUYV */ { "YUYV", 0, 0 },
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/* UYVY */ { "UYVY", 0, 0 },
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/* YUV420 */ { "YUV420", 0, 0 },
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/* YUV411 */ { "YUV411", 0, 0 },
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/* RAW */ { "RAW", 0, 0 },
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/* YUV422P */ { "YUV422P", 0, 0 },
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/* YUV411P */ { "YUV411P", 0, 0 }};
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#define NRPALETTES (sizeof(palette2fmt)/sizeof(palette2fmt[0]))
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#undef ENDIANESS
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/* ----------------------------------------------------------------------- */
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/* ZORAN chipset detector */
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/* shamelessly stolen from bttv.c */
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/* Reason for beeing here: we need to detect if we are running on a */
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/* Triton based chipset, and if so, enable a certain bit */
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/* ----------------------------------------------------------------------- */
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static
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void __init handle_chipset(void)
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{
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/* Just in case some nut set this to something dangerous */
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if (triton1)
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triton1 = ZORAN_VDC_TRICOM;
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if (pci_pci_problems & PCIPCI_TRITON) {
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printk(KERN_INFO "zoran: Host bridge 82437FX Triton PIIX\n");
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triton1 = ZORAN_VDC_TRICOM;
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}
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}
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/* ----------------------------------------------------------------------- */
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/* ZORAN functions */
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/* ----------------------------------------------------------------------- */
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static void zoran_set_geo(struct zoran* ztv, struct vidinfo* i);
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#if 0 /* unused */
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static
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void zoran_dump(struct zoran *ztv)
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{
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char str[256];
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char *p=str; /* shut up, gcc! */
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int i;
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for (i=0; i<0x60; i+=4) {
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if ((i % 16) == 0) {
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if (i) printk("%s\n",str);
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p = str;
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p+= sprintf(str, KERN_DEBUG " %04x: ",i);
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}
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p += sprintf(p, "%08x ",zrread(i));
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}
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}
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#endif /* unused */
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static
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void reap_states(struct zoran* ztv)
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{
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/* count frames */
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ztv->fieldnr++;
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/*
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* Are we busy at all?
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* This depends on if there is a workqueue AND the
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* videotransfer is enabled on the chip...
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*/
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if (ztv->workqueue && (zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN))
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{
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struct vidinfo* newitem;
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/* did we get a complete frame? */
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if (zrread(ZORAN_VSTR) & ZORAN_VSTR_GRAB)
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return;
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DEBUG(printk(CARD_DEBUG "completed %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue));
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/* we are done with this buffer, tell everyone */
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ztv->workqueue->status = FBUFFER_DONE;
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ztv->workqueue->fieldnr = ztv->fieldnr;
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/* not good, here for BTTV_FIELDNR reasons */
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ztv->lastfieldnr = ztv->fieldnr;
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switch (ztv->workqueue->kindof) {
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case FBUFFER_GRAB:
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wake_up_interruptible(&ztv->grabq);
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break;
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case FBUFFER_VBI:
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wake_up_interruptible(&ztv->vbiq);
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break;
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default:
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printk(CARD_INFO "somebody killed the workqueue (kindof=%d)!\n",CARD,ztv->workqueue->kindof);
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}
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/* item completed, skip to next item in queue */
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write_lock(&ztv->lock);
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newitem = ztv->workqueue->next;
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ztv->workqueue->next = 0; /* mark completed */
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ztv->workqueue = newitem;
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write_unlock(&ztv->lock);
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}
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/*
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* ok, so it seems we have nothing in progress right now.
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* Lets see if we can find some work.
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*/
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if (ztv->workqueue)
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{
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struct vidinfo* newitem;
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again:
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DEBUG(printk(CARD_DEBUG "starting %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue));
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/* loadup the frame settings */
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read_lock(&ztv->lock);
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zoran_set_geo(ztv,ztv->workqueue);
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read_unlock(&ztv->lock);
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switch (ztv->workqueue->kindof) {
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case FBUFFER_GRAB:
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case FBUFFER_VBI:
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zrand(~ZORAN_OCR_OVLEN, ZORAN_OCR);
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zror(ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR);
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zror(ZORAN_VDC_VIDEN,ZORAN_VDC);
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/* start single-shot grab */
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zror(ZORAN_VSTR_GRAB, ZORAN_VSTR);
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break;
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default:
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printk(CARD_INFO "what is this doing on the queue? (kindof=%d)\n",CARD,ztv->workqueue->kindof);
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write_lock(&ztv->lock);
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newitem = ztv->workqueue->next;
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ztv->workqueue->next = 0;
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ztv->workqueue = newitem;
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write_unlock(&ztv->lock);
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if (newitem)
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goto again; /* yeah, sure.. */
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}
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/* bye for now */
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return;
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}
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DEBUG(printk(CARD_DEBUG "nothing in queue\n",CARD));
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/*
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* What? Even the workqueue is empty? Am i really here
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* for nothing? Did i come all that way to... do nothing?
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*/
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/* do we need to overlay? */
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if (test_bit(STATE_OVERLAY, &ztv->state))
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{
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/* are we already overlaying? */
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if (!(zrread(ZORAN_OCR) & ZORAN_OCR_OVLEN) ||
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!(zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN))
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{
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DEBUG(printk(CARD_DEBUG "starting overlay\n",CARD));
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read_lock(&ztv->lock);
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zoran_set_geo(ztv,&ztv->overinfo);
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read_unlock(&ztv->lock);
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zror(ZORAN_OCR_OVLEN, ZORAN_OCR);
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zrand(~ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR);
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zror(ZORAN_VDC_VIDEN,ZORAN_VDC);
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}
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/*
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* leave overlaying on, but turn interrupts off.
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*/
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zrand(~ZORAN_ICR_EN,ZORAN_ICR);
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return;
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}
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/* do we have any VBI idle time processing? */
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if (test_bit(STATE_VBI, &ztv->state))
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{
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struct vidinfo* item;
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struct vidinfo* lastitem;
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/* protect the workqueue */
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write_lock(&ztv->lock);
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lastitem = ztv->workqueue;
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if (lastitem)
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while (lastitem->next) lastitem = lastitem->next;
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for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
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if (item->next == 0 && item->status == FBUFFER_FREE)
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{
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DEBUG(printk(CARD_DEBUG "%p added to queue\n",CARD,item));
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item->status = FBUFFER_BUSY;
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if (!lastitem)
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ztv->workqueue = item;
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else
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lastitem->next = item;
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lastitem = item;
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}
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write_unlock(&ztv->lock);
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if (ztv->workqueue)
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goto again; /* hey, _i_ graduated :) */
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}
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/*
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* Then we must be realy IDLE
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*/
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DEBUG(printk(CARD_DEBUG "turning off\n",CARD));
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/* nothing further to do, disable DMA and further IRQs */
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zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
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zrand(~ZORAN_ICR_EN,ZORAN_ICR);
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}
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static
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void zoran_irq(int irq, void *dev_id, struct pt_regs * regs)
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{
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u32 stat,estat;
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int count = 0;
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struct zoran *ztv = dev_id;
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UNUSED(irq); UNUSED(regs);
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for (;;) {
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/* get/clear interrupt status bits */
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stat=zrread(ZORAN_ISR);
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estat=stat & zrread(ZORAN_ICR);
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if (!estat)
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return;
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zrwrite(estat,ZORAN_ISR);
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IDEBUG(printk(CARD_DEBUG "estat %08x\n",CARD,estat));
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IDEBUG(printk(CARD_DEBUG " stat %08x\n",CARD,stat));
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if (estat & ZORAN_ISR_CODE)
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{
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IDEBUG(printk(CARD_DEBUG "CodReplIRQ\n",CARD));
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}
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if (estat & ZORAN_ISR_GIRQ0)
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{
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IDEBUG(printk(CARD_DEBUG "GIRQ0\n",CARD));
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if (!ztv->card->usegirq1)
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reap_states(ztv);
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}
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if (estat & ZORAN_ISR_GIRQ1)
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{
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IDEBUG(printk(CARD_DEBUG "GIRQ1\n",CARD));
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if (ztv->card->usegirq1)
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reap_states(ztv);
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}
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count++;
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if (count > 10)
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printk(CARD_ERR "irq loop %d (%x)\n",CARD,count,estat);
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if (count > 20)
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{
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zrwrite(0, ZORAN_ICR);
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printk(CARD_ERR "IRQ lockup, cleared int mask\n",CARD);
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}
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}
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}
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static
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int zoran_muxsel(struct zoran* ztv, int channel, int norm)
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{
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int rv;
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/* set the new video norm */
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rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &norm);
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if (rv)
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return rv;
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ztv->norm = norm;
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/* map the given channel to the cards decoder's channel */
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channel = ztv->card->video_mux[channel] & CHANNEL_MASK;
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/* set the new channel */
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rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &channel);
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return rv;
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}
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/* Tell the interrupt handler what to to. */
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static
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void zoran_cap(struct zoran* ztv, int on)
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{
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DEBUG(printk(CARD_DEBUG "zoran_cap(%d) state=%x\n",CARD,on,ztv->state));
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if (on) {
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ztv->running = 1;
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/*
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* turn interrupts (back) on. The DMA will be enabled
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* inside the irq handler when it detects a restart.
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*/
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zror(ZORAN_ICR_EN,ZORAN_ICR);
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}
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else {
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/*
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* turn both interrupts and DMA off
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*/
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zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
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zrand(~ZORAN_ICR_EN,ZORAN_ICR);
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ztv->running = 0;
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}
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}
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static ulong dmask[] = {
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0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFC, 0xFFFFFFF8,
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0xFFFFFFF0, 0xFFFFFFE0, 0xFFFFFFC0, 0xFFFFFF80,
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0xFFFFFF00, 0xFFFFFE00, 0xFFFFFC00, 0xFFFFF800,
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0xFFFFF000, 0xFFFFE000, 0xFFFFC000, 0xFFFF8000,
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0xFFFF0000, 0xFFFE0000, 0xFFFC0000, 0xFFF80000,
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0xFFF00000, 0xFFE00000, 0xFFC00000, 0xFF800000,
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0xFF000000, 0xFE000000, 0xFC000000, 0xF8000000,
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0xF0000000, 0xE0000000, 0xC0000000, 0x80000000
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};
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|
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static
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void zoran_built_overlay(struct zoran* ztv, int count, struct video_clip *vcp)
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{
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ulong* mtop;
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int ystep = (ztv->vidXshift + ztv->vidWidth+31)/32; /* next DWORD */
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int i;
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DEBUG(printk(KERN_DEBUG " overlay at %p, ystep=%d, clips=%d\n",ztv->overinfo.overlay,ystep,count));
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for (i=0; i<count; i++) {
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struct video_clip *vp = vcp+i;
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UNUSED(vp);
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DEBUG(printk(KERN_DEBUG " %d: clip(%d,%d,%d,%d)\n", i,vp->x,vp->y,vp->width,vp->height));
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}
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|
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/*
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* activate the visible portion of the screen
|
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* Note we take some shortcuts here, because we
|
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* know the width can never be < 32. (I.e. a DWORD)
|
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* We also assume the overlay starts somewhere in
|
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* the FIRST dword.
|
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*/
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{
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int start = ztv->vidXshift;
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ulong firstd = dmask[start];
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ulong lastd = ~dmask[(start + ztv->overinfo.w) & 31];
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mtop = ztv->overinfo.overlay;
|
|
for (i=0; i<ztv->overinfo.h; i++) {
|
|
int w = ztv->vidWidth;
|
|
ulong* line = mtop;
|
|
if (start & 31) {
|
|
*line++ = firstd;
|
|
w -= 32-(start&31);
|
|
}
|
|
memset(line, ~0, w/8);
|
|
if (w & 31)
|
|
line[w/32] = lastd;
|
|
mtop += ystep;
|
|
}
|
|
}
|
|
|
|
/* process clipping regions */
|
|
for (i=0; i<count; i++) {
|
|
int h;
|
|
if (vcp->x < 0 || (uint)vcp->x > ztv->overinfo.w ||
|
|
vcp->y < 0 || vcp->y > ztv->overinfo.h ||
|
|
vcp->width < 0 || (uint)(vcp->x+vcp->width) > ztv->overinfo.w ||
|
|
vcp->height < 0 || (vcp->y+vcp->height) > ztv->overinfo.h)
|
|
{
|
|
DEBUG(printk(CARD_DEBUG "invalid clipzone (%d,%d,%d,%d) not in (0,0,%d,%d), adapting\n",CARD,vcp->x,vcp->y,vcp->width,vcp->height,ztv->overinfo.w,ztv->overinfo.h));
|
|
if (vcp->x < 0) vcp->x = 0;
|
|
if ((uint)vcp->x > ztv->overinfo.w) vcp->x = ztv->overinfo.w;
|
|
if (vcp->y < 0) vcp->y = 0;
|
|
if (vcp->y > ztv->overinfo.h) vcp->y = ztv->overinfo.h;
|
|
if (vcp->width < 0) vcp->width = 0;
|
|
if ((uint)(vcp->x+vcp->width) > ztv->overinfo.w) vcp->width = ztv->overinfo.w - vcp->x;
|
|
if (vcp->height < 0) vcp->height = 0;
|
|
if (vcp->y+vcp->height > ztv->overinfo.h) vcp->height = ztv->overinfo.h - vcp->y;
|
|
// continue;
|
|
}
|
|
|
|
mtop = &ztv->overinfo.overlay[vcp->y*ystep];
|
|
for (h=0; h<=vcp->height; h++) {
|
|
int w;
|
|
int x = ztv->vidXshift + vcp->x;
|
|
for (w=0; w<=vcp->width; w++) {
|
|
clear_bit(x&31, &mtop[x/32]);
|
|
x++;
|
|
}
|
|
mtop += ystep;
|
|
}
|
|
++vcp;
|
|
}
|
|
|
|
mtop = ztv->overinfo.overlay;
|
|
zrwrite(virt_to_bus(mtop), ZORAN_MTOP);
|
|
zrwrite(virt_to_bus(mtop+ystep), ZORAN_MBOT);
|
|
zraor((ztv->vidInterlace*ystep)<<0,~ZORAN_OCR_MASKSTRIDE,ZORAN_OCR);
|
|
}
|
|
|
|
struct tvnorm
|
|
{
|
|
u16 Wt, Wa, Ht, Ha, HStart, VStart;
|
|
};
|
|
|
|
static struct tvnorm tvnorms[] = {
|
|
/* PAL-BDGHI */
|
|
/* { 864, 720, 625, 576, 131, 21 },*/
|
|
/*00*/ { 864, 768, 625, 576, 81, 17 },
|
|
/* NTSC */
|
|
/*01*/ { 858, 720, 525, 480, 121, 10 },
|
|
/* SECAM */
|
|
/*02*/ { 864, 720, 625, 576, 131, 21 },
|
|
/* BW50 */
|
|
/*03*/ { 864, 720, 625, 576, 131, 21 },
|
|
/* BW60 */
|
|
/*04*/ { 858, 720, 525, 480, 121, 10 }
|
|
};
|
|
#define TVNORMS (sizeof(tvnorms)/sizeof(tvnorm))
|
|
|
|
/*
|
|
* Program the chip for a setup as described in the vidinfo struct.
|
|
*
|
|
* Side-effects: calculates vidXshift, vidInterlace,
|
|
* vidHeight, vidWidth which are used in a later stage
|
|
* to calculate the overlay mask
|
|
*
|
|
* This is an internal function, as such it does not check the
|
|
* validity of the struct members... Spectaculair crashes will
|
|
* follow /very/ quick when you're wrong and the chip right :)
|
|
*/
|
|
static
|
|
void zoran_set_geo(struct zoran* ztv, struct vidinfo* i)
|
|
{
|
|
ulong top, bot;
|
|
int stride;
|
|
int winWidth, winHeight;
|
|
int maxWidth, maxHeight, maxXOffset, maxYOffset;
|
|
long vfec;
|
|
|
|
DEBUG(printk(CARD_DEBUG "set_geo(rect=(%d,%d,%d,%d), norm=%d, format=%d, bpp=%d, bpl=%d, busadr=%lx, overlay=%p)\n",CARD,i->x,i->y,i->w,i->h,ztv->norm,i->format,i->bpp,i->bpl,i->busadr,i->overlay));
|
|
|
|
/*
|
|
* make sure the DMA transfers are inhibited during our
|
|
* reprogramming of the chip
|
|
*/
|
|
zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
|
|
|
|
maxWidth = tvnorms[ztv->norm].Wa;
|
|
maxHeight = tvnorms[ztv->norm].Ha/2;
|
|
maxXOffset = tvnorms[ztv->norm].HStart;
|
|
maxYOffset = tvnorms[ztv->norm].VStart;
|
|
|
|
/* setup vfec register (keep ExtFl,TopField and VCLKPol settings) */
|
|
vfec = (zrread(ZORAN_VFEC) & (ZORAN_VFEC_EXTFL|ZORAN_VFEC_TOPFIELD|ZORAN_VFEC_VCLKPOL)) |
|
|
(palette2fmt[i->format].mode & (ZORAN_VFEC_RGB|ZORAN_VFEC_ERRDIF|ZORAN_VFEC_LE|ZORAN_VFEC_PACK24));
|
|
|
|
/*
|
|
* Set top, bottom ptrs. Since these must be DWORD aligned,
|
|
* possible adjust the x and the width of the window.
|
|
* so the endposition stay the same. The vidXshift will make
|
|
* sure we are not writing pixels before the requested x.
|
|
*/
|
|
ztv->vidXshift = 0;
|
|
winWidth = i->w;
|
|
if (winWidth < 0)
|
|
winWidth = -winWidth;
|
|
top = i->busadr + i->x*i->bpp + i->y*i->bpl;
|
|
if (top & 3) {
|
|
ztv->vidXshift = (top & 3) / i->bpp;
|
|
winWidth += ztv->vidXshift;
|
|
DEBUG(printk(KERN_DEBUG " window-x shifted %d pixels left\n",ztv->vidXshift));
|
|
top &= ~3;
|
|
}
|
|
|
|
/*
|
|
* bottom points to next frame but in interleaved mode we want
|
|
* to 'mix' the 2 frames to one capture, so 'bot' points to one
|
|
* (physical) line below the top line.
|
|
*/
|
|
bot = top + i->bpl;
|
|
zrwrite(top,ZORAN_VTOP);
|
|
zrwrite(bot,ZORAN_VBOT);
|
|
|
|
/*
|
|
* Make sure the winWidth is DWORD aligned too,
|
|
* thereby automaticly making sure the stride to the
|
|
* next line is DWORD aligned too (as required by spec).
|
|
*/
|
|
if ((winWidth*i->bpp) & 3) {
|
|
DEBUG(printk(KERN_DEBUG " window-width enlarged by %d pixels\n",(winWidth*i->bpp) & 3));
|
|
winWidth += (winWidth*i->bpp) & 3;
|
|
}
|
|
|
|
/* determine the DispMode and stride */
|
|
if (i->h >= 0 && i->h <= maxHeight) {
|
|
/* single frame grab suffices for this height. */
|
|
vfec |= ZORAN_VFEC_DISPMOD;
|
|
ztv->vidInterlace = 0;
|
|
stride = i->bpl - (winWidth*i->bpp);
|
|
winHeight = i->h;
|
|
}
|
|
else {
|
|
/* interleaving needed for this height */
|
|
ztv->vidInterlace = 1;
|
|
stride = i->bpl*2 - (winWidth*i->bpp);
|
|
winHeight = i->h/2;
|
|
}
|
|
if (winHeight < 0) /* can happen for VBI! */
|
|
winHeight = -winHeight;
|
|
|
|
/* safety net, sometimes bpl is too short??? */
|
|
if (stride<0) {
|
|
DEBUG(printk(CARD_DEBUG "WARNING stride = %d\n",CARD,stride));
|
|
stride = 0;
|
|
}
|
|
|
|
zraor((winHeight<<12)|(winWidth<<0),~(ZORAN_VDC_VIDWINHT|ZORAN_VDC_VIDWINWID), ZORAN_VDC);
|
|
zraor(stride<<16,~ZORAN_VSTR_DISPSTRIDE,ZORAN_VSTR);
|
|
|
|
/* remember vidWidth, vidHeight for overlay calculations */
|
|
ztv->vidWidth = winWidth;
|
|
ztv->vidHeight = winHeight;
|
|
DEBUG(printk(KERN_DEBUG " top=%08lx, bottom=%08lx\n",top,bot));
|
|
DEBUG(printk(KERN_DEBUG " winWidth=%d, winHeight=%d\n",winWidth,winHeight));
|
|
DEBUG(printk(KERN_DEBUG " maxWidth=%d, maxHeight=%d\n",maxWidth,maxHeight));
|
|
DEBUG(printk(KERN_DEBUG " stride=%d\n",stride));
|
|
|
|
/*
|
|
* determine horizontal scales and crops
|
|
*/
|
|
if (i->w < 0) {
|
|
int Hstart = 1;
|
|
int Hend = Hstart + winWidth;
|
|
DEBUG(printk(KERN_DEBUG " Y: scale=0, start=%d, end=%d\n", Hstart, Hend));
|
|
zraor((Hstart<<10)|(Hend<<0),~(ZORAN_VFEH_HSTART|ZORAN_VFEH_HEND),ZORAN_VFEH);
|
|
}
|
|
else {
|
|
int Wa = maxWidth;
|
|
int X = (winWidth*64+Wa-1)/Wa;
|
|
int We = winWidth*64/X;
|
|
int HorDcm = 64-X;
|
|
int hcrop1 = 2*(Wa-We)/4;
|
|
/*
|
|
* BUGFIX: Juha Nurmela <junki@qn-lpr2-165.quicknet.inet.fi>
|
|
* found the solution to the color phase shift.
|
|
* See ChangeLog for the full explanation)
|
|
*/
|
|
int Hstart = (maxXOffset + hcrop1) | 1;
|
|
int Hend = Hstart + We - 1;
|
|
|
|
DEBUG(printk(KERN_DEBUG " X: scale=%d, start=%d, end=%d\n", HorDcm, Hstart, Hend));
|
|
|
|
zraor((Hstart<<10)|(Hend<<0),~(ZORAN_VFEH_HSTART|ZORAN_VFEH_HEND),ZORAN_VFEH);
|
|
vfec |= HorDcm<<14;
|
|
|
|
if (HorDcm<16)
|
|
vfec |= ZORAN_VFEC_HFILTER_1; /* no filter */
|
|
else if (HorDcm<32)
|
|
vfec |= ZORAN_VFEC_HFILTER_3; /* 3 tap filter */
|
|
else if (HorDcm<48)
|
|
vfec |= ZORAN_VFEC_HFILTER_4; /* 4 tap filter */
|
|
else vfec |= ZORAN_VFEC_HFILTER_5; /* 5 tap filter */
|
|
}
|
|
|
|
/*
|
|
* Determine vertical scales and crops
|
|
*
|
|
* when height is negative, we want to read starting at line 0
|
|
* One day someone might need access to these lines...
|
|
*/
|
|
if (i->h < 0) {
|
|
int Vstart = 0;
|
|
int Vend = Vstart + winHeight;
|
|
DEBUG(printk(KERN_DEBUG " Y: scale=0, start=%d, end=%d\n", Vstart, Vend));
|
|
zraor((Vstart<<10)|(Vend<<0),~(ZORAN_VFEV_VSTART|ZORAN_VFEV_VEND),ZORAN_VFEV);
|
|
}
|
|
else {
|
|
int Ha = maxHeight;
|
|
int Y = (winHeight*64+Ha-1)/Ha;
|
|
int He = winHeight*64/Y;
|
|
int VerDcm = 64-Y;
|
|
int vcrop1 = 2*(Ha-He)/4;
|
|
int Vstart = maxYOffset + vcrop1;
|
|
int Vend = Vstart + He - 1;
|
|
|
|
DEBUG(printk(KERN_DEBUG " Y: scale=%d, start=%d, end=%d\n", VerDcm, Vstart, Vend));
|
|
zraor((Vstart<<10)|(Vend<<0),~(ZORAN_VFEV_VSTART|ZORAN_VFEV_VEND),ZORAN_VFEV);
|
|
vfec |= VerDcm<<8;
|
|
}
|
|
|
|
DEBUG(printk(KERN_DEBUG " F: format=%d(=%s)\n",i->format,palette2fmt[i->format].name));
|
|
|
|
/* setup the requested format */
|
|
zrwrite(vfec, ZORAN_VFEC);
|
|
}
|
|
|
|
static
|
|
void zoran_common_open(struct zoran* ztv, int flags)
|
|
{
|
|
UNUSED(flags);
|
|
|
|
/* already opened? */
|
|
if (ztv->users++ != 0)
|
|
return;
|
|
|
|
/* unmute audio */
|
|
/* /what/ audio? */
|
|
|
|
ztv->state = 0;
|
|
|
|
/* setup the encoder to the initial values */
|
|
ztv->picture.colour=254<<7;
|
|
ztv->picture.brightness=128<<8;
|
|
ztv->picture.hue=128<<8;
|
|
ztv->picture.contrast=216<<7;
|
|
i2c_control_device(&ztv->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_PICTURE, &ztv->picture);
|
|
|
|
/* default to the composite input since my camera is there */
|
|
zoran_muxsel(ztv, 0, VIDEO_MODE_PAL);
|
|
}
|
|
|
|
static
|
|
void zoran_common_close(struct zoran* ztv)
|
|
{
|
|
if (--ztv->users != 0)
|
|
return;
|
|
|
|
/* mute audio */
|
|
/* /what/ audio? */
|
|
|
|
/* stop the chip */
|
|
zoran_cap(ztv, 0);
|
|
}
|
|
|
|
/*
|
|
* Open a zoran card. Right now the flags are just a hack
|
|
*/
|
|
static int zoran_open(struct video_device *dev, int flags)
|
|
{
|
|
struct zoran *ztv = (struct zoran*)dev;
|
|
struct vidinfo* item;
|
|
char* pos;
|
|
|
|
DEBUG(printk(CARD_DEBUG "open(dev,%d)\n",CARD,flags));
|
|
|
|
/*********************************************
|
|
* We really should be doing lazy allocing...
|
|
*********************************************/
|
|
/* allocate a frame buffer */
|
|
if (!ztv->fbuffer)
|
|
ztv->fbuffer = bmalloc(ZORAN_MAX_FBUFSIZE);
|
|
if (!ztv->fbuffer) {
|
|
/* could not get a buffer, bail out */
|
|
return -ENOBUFS;
|
|
}
|
|
/* at this time we _always_ have a framebuffer */
|
|
memset(ztv->fbuffer,0,ZORAN_MAX_FBUFSIZE);
|
|
|
|
if (!ztv->overinfo.overlay)
|
|
ztv->overinfo.overlay = kmalloc(1024*1024/8, GFP_KERNEL);
|
|
if (!ztv->overinfo.overlay) {
|
|
/* could not get an overlay buffer, bail out */
|
|
bfree(ztv->fbuffer, ZORAN_MAX_FBUFSIZE);
|
|
return -ENOBUFS;
|
|
}
|
|
/* at this time we _always_ have a overlay */
|
|
|
|
/* clear buffer status, and give them a DMAable address */
|
|
pos = ztv->fbuffer;
|
|
for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++)
|
|
{
|
|
item->status = FBUFFER_FREE;
|
|
item->memadr = pos;
|
|
item->busadr = virt_to_bus(pos);
|
|
pos += ZORAN_MAX_FBUFFER;
|
|
}
|
|
|
|
/* do the common part of all open's */
|
|
zoran_common_open(ztv, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static
|
|
void zoran_close(struct video_device* dev)
|
|
{
|
|
struct zoran *ztv = (struct zoran*)dev;
|
|
|
|
DEBUG(printk(CARD_DEBUG "close(dev)\n",CARD));
|
|
|
|
/* driver specific closure */
|
|
clear_bit(STATE_OVERLAY, &ztv->state);
|
|
|
|
zoran_common_close(ztv);
|
|
|
|
/*
|
|
* This is sucky but right now I can't find a good way to
|
|
* be sure its safe to free the buffer. We wait 5-6 fields
|
|
* which is more than sufficient to be sure.
|
|
*/
|
|
msleep(100); /* Wait 1/10th of a second */
|
|
|
|
/* free the allocated framebuffer */
|
|
if (ztv->fbuffer)
|
|
bfree( ztv->fbuffer, ZORAN_MAX_FBUFSIZE );
|
|
ztv->fbuffer = 0;
|
|
if (ztv->overinfo.overlay)
|
|
kfree( ztv->overinfo.overlay );
|
|
ztv->overinfo.overlay = 0;
|
|
|
|
}
|
|
|
|
/*
|
|
* This read function could be used reentrant in a SMP situation.
|
|
*
|
|
* This is made possible by the spinlock which is kept till we
|
|
* found and marked a buffer for our own use. The lock must
|
|
* be released as soon as possible to prevent lock contention.
|
|
*/
|
|
static
|
|
long zoran_read(struct video_device* dev, char* buf, unsigned long count, int nonblock)
|
|
{
|
|
struct zoran *ztv = (struct zoran*)dev;
|
|
unsigned long max;
|
|
struct vidinfo* unused = 0;
|
|
struct vidinfo* done = 0;
|
|
|
|
DEBUG(printk(CARD_DEBUG "zoran_read(%p,%ld,%d)\n",CARD,buf,count,nonblock));
|
|
|
|
/* find ourself a free or completed buffer */
|
|
for (;;) {
|
|
struct vidinfo* item;
|
|
|
|
write_lock_irq(&ztv->lock);
|
|
for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++)
|
|
{
|
|
if (!unused && item->status == FBUFFER_FREE)
|
|
unused = item;
|
|
if (!done && item->status == FBUFFER_DONE)
|
|
done = item;
|
|
}
|
|
if (done || unused)
|
|
break;
|
|
|
|
/* no more free buffers, wait for them. */
|
|
write_unlock_irq(&ztv->lock);
|
|
if (nonblock)
|
|
return -EWOULDBLOCK;
|
|
interruptible_sleep_on(&ztv->grabq);
|
|
if (signal_pending(current))
|
|
return -EINTR;
|
|
}
|
|
|
|
/* Do we have 'ready' data? */
|
|
if (!done) {
|
|
/* no? than this will take a while... */
|
|
if (nonblock) {
|
|
write_unlock_irq(&ztv->lock);
|
|
return -EWOULDBLOCK;
|
|
}
|
|
|
|
/* mark the unused buffer as wanted */
|
|
unused->status = FBUFFER_BUSY;
|
|
unused->w = 320;
|
|
unused->h = 240;
|
|
unused->format = VIDEO_PALETTE_RGB24;
|
|
unused->bpp = palette2fmt[unused->format].bpp;
|
|
unused->bpl = unused->w * unused->bpp;
|
|
unused->next = 0;
|
|
{ /* add to tail of queue */
|
|
struct vidinfo* oldframe = ztv->workqueue;
|
|
if (!oldframe) ztv->workqueue = unused;
|
|
else {
|
|
while (oldframe->next) oldframe = oldframe->next;
|
|
oldframe->next = unused;
|
|
}
|
|
}
|
|
write_unlock_irq(&ztv->lock);
|
|
|
|
/* tell the state machine we want it filled /NOW/ */
|
|
zoran_cap(ztv, 1);
|
|
|
|
/* wait till this buffer gets grabbed */
|
|
wait_event_interruptible(ztv->grabq,
|
|
(unused->status != FBUFFER_BUSY));
|
|
/* see if a signal did it */
|
|
if (signal_pending(current))
|
|
return -EINTR;
|
|
done = unused;
|
|
}
|
|
else
|
|
write_unlock_irq(&ztv->lock);
|
|
|
|
/* Yes! we got data! */
|
|
max = done->bpl * done->h;
|
|
if (count > max)
|
|
count = max;
|
|
if (copy_to_user((void*)buf, done->memadr, count))
|
|
count = -EFAULT;
|
|
|
|
/* keep the engine running */
|
|
done->status = FBUFFER_FREE;
|
|
// zoran_cap(ztv,1);
|
|
|
|
/* tell listeners this buffer became free */
|
|
wake_up_interruptible(&ztv->grabq);
|
|
|
|
/* goodbye */
|
|
DEBUG(printk(CARD_DEBUG "zoran_read() returns %lu\n",CARD,count));
|
|
return count;
|
|
}
|
|
|
|
static
|
|
long zoran_write(struct video_device* dev, const char* buf, unsigned long count, int nonblock)
|
|
{
|
|
struct zoran *ztv = (struct zoran *)dev;
|
|
UNUSED(ztv); UNUSED(dev); UNUSED(buf); UNUSED(count); UNUSED(nonblock);
|
|
DEBUG(printk(CARD_DEBUG "zoran_write\n",CARD));
|
|
return -EINVAL;
|
|
}
|
|
|
|
static
|
|
unsigned int zoran_poll(struct video_device *dev, struct file *file, poll_table *wait)
|
|
{
|
|
struct zoran *ztv = (struct zoran *)dev;
|
|
struct vidinfo* item;
|
|
unsigned int mask = 0;
|
|
|
|
poll_wait(file, &ztv->grabq, wait);
|
|
|
|
for (item=ztv->grabinfo; item!=ztv->grabinfo+ZORAN_MAX_FBUFFERS; item++)
|
|
if (item->status == FBUFFER_DONE)
|
|
{
|
|
mask |= (POLLIN | POLLRDNORM);
|
|
break;
|
|
}
|
|
|
|
DEBUG(printk(CARD_DEBUG "zoran_poll()=%x\n",CARD,mask));
|
|
|
|
return mask;
|
|
}
|
|
|
|
/* append a new clipregion to the vector of video_clips */
|
|
static
|
|
void new_clip(struct video_window* vw, struct video_clip* vcp, int x, int y, int w, int h)
|
|
{
|
|
vcp[vw->clipcount].x = x;
|
|
vcp[vw->clipcount].y = y;
|
|
vcp[vw->clipcount].width = w;
|
|
vcp[vw->clipcount].height = h;
|
|
vw->clipcount++;
|
|
}
|
|
|
|
static
|
|
int zoran_ioctl(struct video_device* dev, unsigned int cmd, void *arg)
|
|
{
|
|
struct zoran* ztv = (struct zoran*)dev;
|
|
|
|
switch (cmd) {
|
|
case VIDIOCGCAP:
|
|
{
|
|
struct video_capability c;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGCAP\n",CARD));
|
|
|
|
strcpy(c.name,ztv->video_dev.name);
|
|
c.type = VID_TYPE_CAPTURE|
|
|
VID_TYPE_OVERLAY|
|
|
VID_TYPE_CLIPPING|
|
|
VID_TYPE_FRAMERAM|
|
|
VID_TYPE_SCALES;
|
|
if (ztv->have_tuner)
|
|
c.type |= VID_TYPE_TUNER;
|
|
if (ztv->have_decoder) {
|
|
c.channels = ztv->card->video_inputs;
|
|
c.audios = ztv->card->audio_inputs;
|
|
} else
|
|
/* no decoder -> no channels */
|
|
c.channels = c.audios = 0;
|
|
c.maxwidth = 768;
|
|
c.maxheight = 576;
|
|
c.minwidth = 32;
|
|
c.minheight = 32;
|
|
if (copy_to_user(arg,&c,sizeof(c)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
|
|
case VIDIOCGCHAN:
|
|
{
|
|
struct video_channel v;
|
|
int mux;
|
|
if (copy_from_user(&v, arg,sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGCHAN(%d)\n",CARD,v.channel));
|
|
v.flags=VIDEO_VC_AUDIO
|
|
#ifdef VIDEO_VC_NORM
|
|
|VIDEO_VC_NORM
|
|
#endif
|
|
;
|
|
v.tuners=0;
|
|
v.type=VIDEO_TYPE_CAMERA;
|
|
#ifdef I_EXPECT_POSSIBLE_NORMS_IN_THE_API
|
|
v.norm=VIDEO_MODE_PAL|
|
|
VIDEO_MODE_NTSC|
|
|
VIDEO_MODE_SECAM;
|
|
#else
|
|
v.norm=VIDEO_MODE_PAL;
|
|
#endif
|
|
/* too many inputs? no decoder -> no channels */
|
|
if (!ztv->have_decoder || v.channel < 0 || v.channel >= ztv->card->video_inputs)
|
|
return -EINVAL;
|
|
|
|
/* now determine the name of the channel */
|
|
mux = ztv->card->video_mux[v.channel];
|
|
if (mux & IS_TUNER) {
|
|
/* lets assume only one tuner, yes? */
|
|
strcpy(v.name,"Television");
|
|
v.type = VIDEO_TYPE_TV;
|
|
if (ztv->have_tuner) {
|
|
v.flags |= VIDEO_VC_TUNER;
|
|
v.tuners = 1;
|
|
}
|
|
}
|
|
else if (mux & IS_SVHS)
|
|
sprintf(v.name,"S-Video-%d",v.channel);
|
|
else
|
|
sprintf(v.name,"CVBS-%d",v.channel);
|
|
|
|
if (copy_to_user(arg,&v,sizeof(v)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
case VIDIOCSCHAN:
|
|
{ /* set video channel */
|
|
struct video_channel v;
|
|
if (copy_from_user(&v, arg,sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCSCHAN(%d,%d)\n",CARD,v.channel,v.norm));
|
|
|
|
/* too many inputs? no decoder -> no channels */
|
|
if (!ztv->have_decoder || v.channel >= ztv->card->video_inputs || v.channel < 0)
|
|
return -EINVAL;
|
|
|
|
if (v.norm != VIDEO_MODE_PAL &&
|
|
v.norm != VIDEO_MODE_NTSC &&
|
|
v.norm != VIDEO_MODE_SECAM &&
|
|
v.norm != VIDEO_MODE_AUTO)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* make it happen, nr1! */
|
|
return zoran_muxsel(ztv,v.channel,v.norm);
|
|
}
|
|
|
|
case VIDIOCGTUNER:
|
|
{
|
|
struct video_tuner v;
|
|
if (copy_from_user(&v, arg,sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGTUNER(%d)\n",CARD,v.tuner));
|
|
|
|
/* Only no or one tuner for now */
|
|
if (!ztv->have_tuner || v.tuner)
|
|
return -EINVAL;
|
|
|
|
strcpy(v.name,"Television");
|
|
v.rangelow = 0;
|
|
v.rangehigh = ~0;
|
|
v.flags = VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM;
|
|
v.mode = ztv->norm;
|
|
v.signal = 0xFFFF; /* unknown */
|
|
|
|
if (copy_to_user(arg,&v,sizeof(v)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
case VIDIOCSTUNER:
|
|
{
|
|
struct video_tuner v;
|
|
if (copy_from_user(&v, arg, sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCSTUNER(%d,%d)\n",CARD,v.tuner,v.mode));
|
|
|
|
/* Only no or one tuner for now */
|
|
if (!ztv->have_tuner || v.tuner)
|
|
return -EINVAL;
|
|
|
|
/* and it only has certain valid modes */
|
|
if( v.mode != VIDEO_MODE_PAL &&
|
|
v.mode != VIDEO_MODE_NTSC &&
|
|
v.mode != VIDEO_MODE_SECAM)
|
|
return -EOPNOTSUPP;
|
|
|
|
/* engage! */
|
|
return zoran_muxsel(ztv,v.tuner,v.mode);
|
|
}
|
|
|
|
case VIDIOCGPICT:
|
|
{
|
|
struct video_picture p = ztv->picture;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGPICT\n",CARD));
|
|
p.depth = ztv->depth;
|
|
switch (p.depth) {
|
|
case 8: p.palette=VIDEO_PALETTE_YUV422;
|
|
break;
|
|
case 15: p.palette=VIDEO_PALETTE_RGB555;
|
|
break;
|
|
case 16: p.palette=VIDEO_PALETTE_RGB565;
|
|
break;
|
|
case 24: p.palette=VIDEO_PALETTE_RGB24;
|
|
break;
|
|
case 32: p.palette=VIDEO_PALETTE_RGB32;
|
|
break;
|
|
}
|
|
if (copy_to_user(arg, &p, sizeof(p)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
case VIDIOCSPICT:
|
|
{
|
|
struct video_picture p;
|
|
if (copy_from_user(&p, arg,sizeof(p)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCSPICT(%d,%d,%d,%d,%d,%d,%d)\n",CARD,p.brightness,p.hue,p.colour,p.contrast,p.whiteness,p.depth,p.palette));
|
|
|
|
/* depth must match with framebuffer */
|
|
if (p.depth != ztv->depth)
|
|
return -EINVAL;
|
|
|
|
/* check if palette matches this bpp */
|
|
if (p.palette>NRPALETTES ||
|
|
palette2fmt[p.palette].bpp != ztv->overinfo.bpp)
|
|
return -EINVAL;
|
|
|
|
write_lock_irq(&ztv->lock);
|
|
ztv->overinfo.format = p.palette;
|
|
ztv->picture = p;
|
|
write_unlock_irq(&ztv->lock);
|
|
|
|
/* tell the decoder */
|
|
i2c_control_device(&ztv->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_PICTURE, &p);
|
|
break;
|
|
}
|
|
|
|
case VIDIOCGWIN:
|
|
{
|
|
struct video_window vw;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGWIN\n",CARD));
|
|
read_lock(&ztv->lock);
|
|
vw.x = ztv->overinfo.x;
|
|
vw.y = ztv->overinfo.y;
|
|
vw.width = ztv->overinfo.w;
|
|
vw.height = ztv->overinfo.h;
|
|
vw.chromakey= 0;
|
|
vw.flags = 0;
|
|
if (ztv->vidInterlace)
|
|
vw.flags|=VIDEO_WINDOW_INTERLACE;
|
|
read_unlock(&ztv->lock);
|
|
if (copy_to_user(arg,&vw,sizeof(vw)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
case VIDIOCSWIN:
|
|
{
|
|
struct video_window vw;
|
|
struct video_clip *vcp;
|
|
int on;
|
|
if (copy_from_user(&vw,arg,sizeof(vw)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCSWIN(%d,%d,%d,%d,%x,%d)\n",CARD,vw.x,vw.y,vw.width,vw.height,vw.flags,vw.clipcount));
|
|
|
|
if (vw.flags)
|
|
return -EINVAL;
|
|
|
|
if (vw.clipcount <0 || vw.clipcount>256)
|
|
return -EDOM; /* Too many! */
|
|
|
|
/*
|
|
* Do any clips.
|
|
*/
|
|
vcp = vmalloc(sizeof(struct video_clip)*(vw.clipcount+4));
|
|
if (vcp==NULL)
|
|
return -ENOMEM;
|
|
if (vw.clipcount && copy_from_user(vcp,vw.clips,sizeof(struct video_clip)*vw.clipcount)) {
|
|
vfree(vcp);
|
|
return -EFAULT;
|
|
}
|
|
|
|
on = ztv->running;
|
|
if (on)
|
|
zoran_cap(ztv, 0);
|
|
|
|
/*
|
|
* strange, it seems xawtv sometimes calls us with 0
|
|
* width and/or height. Ignore these values
|
|
*/
|
|
if (vw.x == 0)
|
|
vw.x = ztv->overinfo.x;
|
|
if (vw.y == 0)
|
|
vw.y = ztv->overinfo.y;
|
|
|
|
/* by now we are committed to the new data... */
|
|
write_lock_irq(&ztv->lock);
|
|
ztv->overinfo.x = vw.x;
|
|
ztv->overinfo.y = vw.y;
|
|
ztv->overinfo.w = vw.width;
|
|
ztv->overinfo.h = vw.height;
|
|
write_unlock_irq(&ztv->lock);
|
|
|
|
/*
|
|
* Impose display clips
|
|
*/
|
|
if (vw.x+vw.width > ztv->swidth)
|
|
new_clip(&vw, vcp, ztv->swidth-vw.x, 0, vw.width-1, vw.height-1);
|
|
if (vw.y+vw.height > ztv->sheight)
|
|
new_clip(&vw, vcp, 0, ztv->sheight-vw.y, vw.width-1, vw.height-1);
|
|
|
|
/* built the requested clipping zones */
|
|
zoran_set_geo(ztv, &ztv->overinfo);
|
|
zoran_built_overlay(ztv, vw.clipcount, vcp);
|
|
vfree(vcp);
|
|
|
|
/* if we were on, restart the video engine */
|
|
if (on)
|
|
zoran_cap(ztv, 1);
|
|
break;
|
|
}
|
|
|
|
case VIDIOCCAPTURE:
|
|
{
|
|
int v;
|
|
if (get_user(v, (int *)arg))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCCAPTURE(%d)\n",CARD,v));
|
|
|
|
if (v==0) {
|
|
clear_bit(STATE_OVERLAY, &ztv->state);
|
|
zoran_cap(ztv, 1);
|
|
}
|
|
else {
|
|
/* is VIDIOCSFBUF, VIDIOCSWIN done? */
|
|
if (ztv->overinfo.busadr==0 || ztv->overinfo.w==0 || ztv->overinfo.h==0)
|
|
return -EINVAL;
|
|
|
|
set_bit(STATE_OVERLAY, &ztv->state);
|
|
zoran_cap(ztv, 1);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case VIDIOCGFBUF:
|
|
{
|
|
struct video_buffer v;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGFBUF\n",CARD));
|
|
read_lock(&ztv->lock);
|
|
v.base = (void *)ztv->overinfo.busadr;
|
|
v.height = ztv->sheight;
|
|
v.width = ztv->swidth;
|
|
v.depth = ztv->depth;
|
|
v.bytesperline = ztv->overinfo.bpl;
|
|
read_unlock(&ztv->lock);
|
|
if(copy_to_user(arg, &v,sizeof(v)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
case VIDIOCSFBUF:
|
|
{
|
|
struct video_buffer v;
|
|
if(!capable(CAP_SYS_ADMIN))
|
|
return -EPERM;
|
|
if (copy_from_user(&v, arg,sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCSFBUF(%p,%d,%d,%d,%d)\n",CARD,v.base, v.width,v.height,v.depth,v.bytesperline));
|
|
|
|
if (v.depth!=15 && v.depth!=16 && v.depth!=24 && v.depth!=32)
|
|
return -EINVAL;
|
|
if (v.bytesperline<1)
|
|
return -EINVAL;
|
|
if (ztv->running)
|
|
return -EBUSY;
|
|
write_lock_irq(&ztv->lock);
|
|
ztv->overinfo.busadr = (ulong)v.base;
|
|
ztv->sheight = v.height;
|
|
ztv->swidth = v.width;
|
|
ztv->depth = v.depth; /* bits per pixel */
|
|
ztv->overinfo.bpp = ((v.depth+1)&0x38)/8;/* bytes per pixel */
|
|
ztv->overinfo.bpl = v.bytesperline; /* bytes per line */
|
|
write_unlock_irq(&ztv->lock);
|
|
break;
|
|
}
|
|
|
|
case VIDIOCKEY:
|
|
{
|
|
/* Will be handled higher up .. */
|
|
break;
|
|
}
|
|
|
|
case VIDIOCSYNC:
|
|
{
|
|
int i;
|
|
if (get_user(i, (int *) arg))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDEOCSYNC(%d)\n",CARD,i));
|
|
if (i<0 || i>ZORAN_MAX_FBUFFERS)
|
|
return -EINVAL;
|
|
switch (ztv->grabinfo[i].status) {
|
|
case FBUFFER_FREE:
|
|
return -EINVAL;
|
|
case FBUFFER_BUSY:
|
|
/* wait till this buffer gets grabbed */
|
|
wait_event_interruptible(ztv->grabq,
|
|
(ztv->grabinfo[i].status != FBUFFER_BUSY));
|
|
/* see if a signal did it */
|
|
if (signal_pending(current))
|
|
return -EINTR;
|
|
/* don't fall through; a DONE buffer is not UNUSED */
|
|
break;
|
|
case FBUFFER_DONE:
|
|
ztv->grabinfo[i].status = FBUFFER_FREE;
|
|
/* tell ppl we have a spare buffer */
|
|
wake_up_interruptible(&ztv->grabq);
|
|
break;
|
|
}
|
|
DEBUG(printk(CARD_DEBUG "VIDEOCSYNC(%d) returns\n",CARD,i));
|
|
break;
|
|
}
|
|
|
|
case VIDIOCMCAPTURE:
|
|
{
|
|
struct video_mmap vm;
|
|
struct vidinfo* frame;
|
|
if (copy_from_user(&vm,arg,sizeof(vm)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCMCAPTURE(%d,(%d,%d),%d)\n",CARD,vm.frame,vm.width,vm.height,vm.format));
|
|
if (vm.frame<0 || vm.frame>ZORAN_MAX_FBUFFERS ||
|
|
vm.width<32 || vm.width>768 ||
|
|
vm.height<32 || vm.height>576 ||
|
|
vm.format>NRPALETTES ||
|
|
palette2fmt[vm.format].mode == 0)
|
|
return -EINVAL;
|
|
|
|
/* we are allowed to take over UNUSED and DONE buffers */
|
|
frame = &ztv->grabinfo[vm.frame];
|
|
if (frame->status == FBUFFER_BUSY)
|
|
return -EBUSY;
|
|
|
|
/* setup the other parameters if they are given */
|
|
write_lock_irq(&ztv->lock);
|
|
frame->w = vm.width;
|
|
frame->h = vm.height;
|
|
frame->format = vm.format;
|
|
frame->bpp = palette2fmt[frame->format].bpp;
|
|
frame->bpl = frame->w*frame->bpp;
|
|
frame->status = FBUFFER_BUSY;
|
|
frame->next = 0;
|
|
{ /* add to tail of queue */
|
|
struct vidinfo* oldframe = ztv->workqueue;
|
|
if (!oldframe) ztv->workqueue = frame;
|
|
else {
|
|
while (oldframe->next) oldframe = oldframe->next;
|
|
oldframe->next = frame;
|
|
}
|
|
}
|
|
write_unlock_irq(&ztv->lock);
|
|
zoran_cap(ztv, 1);
|
|
break;
|
|
}
|
|
|
|
case VIDIOCGMBUF:
|
|
{
|
|
struct video_mbuf mb;
|
|
int i;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGMBUF\n",CARD));
|
|
mb.size = ZORAN_MAX_FBUFSIZE;
|
|
mb.frames = ZORAN_MAX_FBUFFERS;
|
|
for (i=0; i<ZORAN_MAX_FBUFFERS; i++)
|
|
mb.offsets[i] = i*ZORAN_MAX_FBUFFER;
|
|
if(copy_to_user(arg, &mb,sizeof(mb)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
|
|
case VIDIOCGUNIT:
|
|
{
|
|
struct video_unit vu;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGUNIT\n",CARD));
|
|
vu.video = ztv->video_dev.minor;
|
|
vu.vbi = ztv->vbi_dev.minor;
|
|
vu.radio = VIDEO_NO_UNIT;
|
|
vu.audio = VIDEO_NO_UNIT;
|
|
vu.teletext = VIDEO_NO_UNIT;
|
|
if(copy_to_user(arg, &vu,sizeof(vu)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
|
|
case VIDIOCGFREQ:
|
|
{
|
|
unsigned long v = ztv->tuner_freq;
|
|
if (copy_to_user(arg,&v,sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGFREQ\n",CARD));
|
|
break;
|
|
}
|
|
case VIDIOCSFREQ:
|
|
{
|
|
unsigned long v;
|
|
if (copy_from_user(&v, arg, sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCSFREQ\n",CARD));
|
|
|
|
if (ztv->have_tuner) {
|
|
int fixme = v;
|
|
if (i2c_control_device(&(ztv->i2c), I2C_DRIVERID_TUNER, TUNER_SET_TVFREQ, &fixme) < 0)
|
|
return -EAGAIN;
|
|
}
|
|
ztv->tuner_freq = v;
|
|
break;
|
|
}
|
|
|
|
/* Why isn't this in the API?
|
|
* And why doesn't it take a buffer number?
|
|
case BTTV_FIELDNR:
|
|
{
|
|
unsigned long v = ztv->lastfieldnr;
|
|
if (copy_to_user(arg,&v,sizeof(v)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "BTTV_FIELDNR\n",CARD));
|
|
break;
|
|
}
|
|
*/
|
|
|
|
default:
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static
|
|
int zoran_mmap(struct vm_area_struct *vma, struct video_device* dev, const char* adr, unsigned long size)
|
|
{
|
|
struct zoran* ztv = (struct zoran*)dev;
|
|
unsigned long start = (unsigned long)adr;
|
|
unsigned long pos;
|
|
|
|
DEBUG(printk(CARD_DEBUG "zoran_mmap(0x%p,%ld)\n",CARD,adr,size));
|
|
|
|
/* sanity checks */
|
|
if (size > ZORAN_MAX_FBUFSIZE || !ztv->fbuffer)
|
|
return -EINVAL;
|
|
|
|
/* start mapping the whole shabang to user memory */
|
|
pos = (unsigned long)ztv->fbuffer;
|
|
while (size>0) {
|
|
unsigned long pfn = virt_to_phys((void*)pos) >> PAGE_SHIFT;
|
|
if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, PAGE_SHARED))
|
|
return -EAGAIN;
|
|
start += PAGE_SIZE;
|
|
pos += PAGE_SIZE;
|
|
size -= PAGE_SIZE;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct video_device zr36120_template=
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.name = "UNSET",
|
|
.type = VID_TYPE_TUNER|VID_TYPE_CAPTURE|VID_TYPE_OVERLAY,
|
|
.hardware = VID_HARDWARE_ZR36120,
|
|
.open = zoran_open,
|
|
.close = zoran_close,
|
|
.read = zoran_read,
|
|
.write = zoran_write,
|
|
.poll = zoran_poll,
|
|
.ioctl = zoran_ioctl,
|
|
.mmap = zoran_mmap,
|
|
.minor = -1,
|
|
};
|
|
|
|
static
|
|
int vbi_open(struct video_device *dev, int flags)
|
|
{
|
|
struct zoran *ztv = dev->priv;
|
|
struct vidinfo* item;
|
|
|
|
DEBUG(printk(CARD_DEBUG "vbi_open(dev,%d)\n",CARD,flags));
|
|
|
|
/*
|
|
* During VBI device open, we continiously grab VBI-like
|
|
* data in the vbi buffer when we have nothing to do.
|
|
* Only when there is an explicit request for VBI data
|
|
* (read call) we /force/ a read.
|
|
*/
|
|
|
|
/* allocate buffers */
|
|
for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
|
|
{
|
|
item->status = FBUFFER_FREE;
|
|
|
|
/* alloc */
|
|
if (!item->memadr) {
|
|
item->memadr = bmalloc(ZORAN_VBI_BUFSIZE);
|
|
if (!item->memadr) {
|
|
/* could not get a buffer, bail out */
|
|
while (item != ztv->readinfo) {
|
|
item--;
|
|
bfree(item->memadr, ZORAN_VBI_BUFSIZE);
|
|
item->memadr = 0;
|
|
item->busadr = 0;
|
|
}
|
|
return -ENOBUFS;
|
|
}
|
|
}
|
|
|
|
/* determine the DMAable address */
|
|
item->busadr = virt_to_bus(item->memadr);
|
|
}
|
|
|
|
/* do the common part of all open's */
|
|
zoran_common_open(ztv, flags);
|
|
|
|
set_bit(STATE_VBI, &ztv->state);
|
|
/* start read-ahead */
|
|
zoran_cap(ztv, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static
|
|
void vbi_close(struct video_device *dev)
|
|
{
|
|
struct zoran *ztv = dev->priv;
|
|
struct vidinfo* item;
|
|
|
|
DEBUG(printk(CARD_DEBUG "vbi_close(dev)\n",CARD));
|
|
|
|
/* driver specific closure */
|
|
clear_bit(STATE_VBI, &ztv->state);
|
|
|
|
zoran_common_close(ztv);
|
|
|
|
/*
|
|
* This is sucky but right now I can't find a good way to
|
|
* be sure its safe to free the buffer. We wait 5-6 fields
|
|
* which is more than sufficient to be sure.
|
|
*/
|
|
msleep(100); /* Wait 1/10th of a second */
|
|
|
|
for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
|
|
{
|
|
if (item->memadr)
|
|
bfree(item->memadr, ZORAN_VBI_BUFSIZE);
|
|
item->memadr = 0;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* This read function could be used reentrant in a SMP situation.
|
|
*
|
|
* This is made possible by the spinlock which is kept till we
|
|
* found and marked a buffer for our own use. The lock must
|
|
* be released as soon as possible to prevent lock contention.
|
|
*/
|
|
static
|
|
long vbi_read(struct video_device* dev, char* buf, unsigned long count, int nonblock)
|
|
{
|
|
struct zoran *ztv = dev->priv;
|
|
unsigned long max;
|
|
struct vidinfo* unused = 0;
|
|
struct vidinfo* done = 0;
|
|
|
|
DEBUG(printk(CARD_DEBUG "vbi_read(0x%p,%ld,%d)\n",CARD,buf,count,nonblock));
|
|
|
|
/* find ourself a free or completed buffer */
|
|
for (;;) {
|
|
struct vidinfo* item;
|
|
|
|
write_lock_irq(&ztv->lock);
|
|
for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++) {
|
|
if (!unused && item->status == FBUFFER_FREE)
|
|
unused = item;
|
|
if (!done && item->status == FBUFFER_DONE)
|
|
done = item;
|
|
}
|
|
if (done || unused)
|
|
break;
|
|
|
|
/* no more free buffers, wait for them. */
|
|
write_unlock_irq(&ztv->lock);
|
|
if (nonblock)
|
|
return -EWOULDBLOCK;
|
|
interruptible_sleep_on(&ztv->vbiq);
|
|
if (signal_pending(current))
|
|
return -EINTR;
|
|
}
|
|
|
|
/* Do we have 'ready' data? */
|
|
if (!done) {
|
|
/* no? than this will take a while... */
|
|
if (nonblock) {
|
|
write_unlock_irq(&ztv->lock);
|
|
return -EWOULDBLOCK;
|
|
}
|
|
|
|
/* mark the unused buffer as wanted */
|
|
unused->status = FBUFFER_BUSY;
|
|
unused->next = 0;
|
|
{ /* add to tail of queue */
|
|
struct vidinfo* oldframe = ztv->workqueue;
|
|
if (!oldframe) ztv->workqueue = unused;
|
|
else {
|
|
while (oldframe->next) oldframe = oldframe->next;
|
|
oldframe->next = unused;
|
|
}
|
|
}
|
|
write_unlock_irq(&ztv->lock);
|
|
|
|
/* tell the state machine we want it filled /NOW/ */
|
|
zoran_cap(ztv, 1);
|
|
|
|
/* wait till this buffer gets grabbed */
|
|
wait_event_interruptible(ztv->vbiq,
|
|
(unused->status != FBUFFER_BUSY));
|
|
/* see if a signal did it */
|
|
if (signal_pending(current))
|
|
return -EINTR;
|
|
done = unused;
|
|
}
|
|
else
|
|
write_unlock_irq(&ztv->lock);
|
|
|
|
/* Yes! we got data! */
|
|
max = done->bpl * -done->h;
|
|
if (count > max)
|
|
count = max;
|
|
|
|
/* check if the user gave us enough room to write the data */
|
|
if (!access_ok(VERIFY_WRITE, buf, count)) {
|
|
count = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Now transform/strip the data from YUV to Y-only
|
|
* NB. Assume the Y is in the LSB of the YUV data.
|
|
*/
|
|
{
|
|
unsigned char* optr = buf;
|
|
unsigned char* eptr = buf+count;
|
|
|
|
/* are we beeing accessed from an old driver? */
|
|
if (count == 2*19*2048) {
|
|
/*
|
|
* Extreme HACK, old VBI programs expect 2048 points
|
|
* of data, and we only got 864 orso. Double each
|
|
* datapoint and clear the rest of the line.
|
|
* This way we have appear to have a
|
|
* sample_frequency of 29.5 Mc.
|
|
*/
|
|
int x,y;
|
|
unsigned char* iptr = done->memadr+1;
|
|
for (y=done->h; optr<eptr && y<0; y++)
|
|
{
|
|
/* copy to doubled data to userland */
|
|
for (x=0; optr+1<eptr && x<-done->w; x++)
|
|
{
|
|
unsigned char a = iptr[x*2];
|
|
__put_user(a, optr++);
|
|
__put_user(a, optr++);
|
|
}
|
|
/* and clear the rest of the line */
|
|
for (x*=2; optr<eptr && x<done->bpl; x++)
|
|
__put_user(0, optr++);
|
|
/* next line */
|
|
iptr += done->bpl;
|
|
}
|
|
}
|
|
else {
|
|
/*
|
|
* Other (probably newer) programs asked
|
|
* us what geometry we are using, and are
|
|
* reading the correct size.
|
|
*/
|
|
int x,y;
|
|
unsigned char* iptr = done->memadr+1;
|
|
for (y=done->h; optr<eptr && y<0; y++)
|
|
{
|
|
/* copy to doubled data to userland */
|
|
for (x=0; optr<eptr && x<-done->w; x++)
|
|
__put_user(iptr[x*2], optr++);
|
|
/* and clear the rest of the line */
|
|
for (;optr<eptr && x<done->bpl; x++)
|
|
__put_user(0, optr++);
|
|
/* next line */
|
|
iptr += done->bpl;
|
|
}
|
|
}
|
|
|
|
/* API compliance:
|
|
* place the framenumber (half fieldnr) in the last long
|
|
*/
|
|
__put_user(done->fieldnr/2, ((ulong*)eptr)[-1]);
|
|
}
|
|
|
|
/* keep the engine running */
|
|
done->status = FBUFFER_FREE;
|
|
zoran_cap(ztv, 1);
|
|
|
|
/* tell listeners this buffer just became free */
|
|
wake_up_interruptible(&ztv->vbiq);
|
|
|
|
/* goodbye */
|
|
out:
|
|
DEBUG(printk(CARD_DEBUG "vbi_read() returns %lu\n",CARD,count));
|
|
return count;
|
|
}
|
|
|
|
static
|
|
unsigned int vbi_poll(struct video_device *dev, struct file *file, poll_table *wait)
|
|
{
|
|
struct zoran *ztv = dev->priv;
|
|
struct vidinfo* item;
|
|
unsigned int mask = 0;
|
|
|
|
poll_wait(file, &ztv->vbiq, wait);
|
|
|
|
for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
|
|
if (item->status == FBUFFER_DONE)
|
|
{
|
|
mask |= (POLLIN | POLLRDNORM);
|
|
break;
|
|
}
|
|
|
|
DEBUG(printk(CARD_DEBUG "vbi_poll()=%x\n",CARD,mask));
|
|
|
|
return mask;
|
|
}
|
|
|
|
static
|
|
int vbi_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
|
|
{
|
|
struct zoran* ztv = dev->priv;
|
|
|
|
switch (cmd) {
|
|
case VIDIOCGVBIFMT:
|
|
{
|
|
struct vbi_format f;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCGVBIINFO\n",CARD));
|
|
f.sampling_rate = 14750000UL;
|
|
f.samples_per_line = -ztv->readinfo[0].w;
|
|
f.sample_format = VIDEO_PALETTE_RAW;
|
|
f.start[0] = f.start[1] = ztv->readinfo[0].y;
|
|
f.start[1] += 312;
|
|
f.count[0] = f.count[1] = -ztv->readinfo[0].h;
|
|
f.flags = VBI_INTERLACED;
|
|
if (copy_to_user(arg,&f,sizeof(f)))
|
|
return -EFAULT;
|
|
break;
|
|
}
|
|
case VIDIOCSVBIFMT:
|
|
{
|
|
struct vbi_format f;
|
|
int i;
|
|
if (copy_from_user(&f, arg,sizeof(f)))
|
|
return -EFAULT;
|
|
DEBUG(printk(CARD_DEBUG "VIDIOCSVBIINFO(%d,%d,%d,%d,%d,%d,%d,%x)\n",CARD,f.sampling_rate,f.samples_per_line,f.sample_format,f.start[0],f.start[1],f.count[0],f.count[1],f.flags));
|
|
|
|
/* lots of parameters are fixed... (PAL) */
|
|
if (f.sampling_rate != 14750000UL ||
|
|
f.samples_per_line > 864 ||
|
|
f.sample_format != VIDEO_PALETTE_RAW ||
|
|
f.start[0] < 0 ||
|
|
f.start[0] != f.start[1]-312 ||
|
|
f.count[0] != f.count[1] ||
|
|
f.start[0]+f.count[0] >= 288 ||
|
|
f.flags != VBI_INTERLACED)
|
|
return -EINVAL;
|
|
|
|
write_lock_irq(&ztv->lock);
|
|
ztv->readinfo[0].y = f.start[0];
|
|
ztv->readinfo[0].w = -f.samples_per_line;
|
|
ztv->readinfo[0].h = -f.count[0];
|
|
ztv->readinfo[0].bpl = f.samples_per_line*ztv->readinfo[0].bpp;
|
|
for (i=1; i<ZORAN_VBI_BUFFERS; i++)
|
|
ztv->readinfo[i] = ztv->readinfo[i];
|
|
write_unlock_irq(&ztv->lock);
|
|
break;
|
|
}
|
|
default:
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct video_device vbi_template=
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.name = "UNSET",
|
|
.type = VID_TYPE_CAPTURE|VID_TYPE_TELETEXT,
|
|
.hardware = VID_HARDWARE_ZR36120,
|
|
.open = vbi_open,
|
|
.close = vbi_close,
|
|
.read = vbi_read,
|
|
.write = zoran_write,
|
|
.poll = vbi_poll,
|
|
.ioctl = vbi_ioctl,
|
|
.minor = -1,
|
|
};
|
|
|
|
/*
|
|
* Scan for a Zoran chip, request the irq and map the io memory
|
|
*/
|
|
static
|
|
int __init find_zoran(void)
|
|
{
|
|
int result;
|
|
struct zoran *ztv;
|
|
struct pci_dev *dev = NULL;
|
|
unsigned char revision;
|
|
int zoran_num=0;
|
|
|
|
while ((dev = pci_find_device(PCI_VENDOR_ID_ZORAN,PCI_DEVICE_ID_ZORAN_36120, dev)))
|
|
{
|
|
/* Ok, a ZR36120/ZR36125 found! */
|
|
ztv = &zorans[zoran_num];
|
|
ztv->dev = dev;
|
|
|
|
if (pci_enable_device(dev))
|
|
return -EIO;
|
|
|
|
pci_read_config_byte(dev, PCI_CLASS_REVISION, &revision);
|
|
printk(KERN_INFO "zoran: Zoran %x (rev %d) ",
|
|
dev->device, revision);
|
|
printk("bus: %d, devfn: %d, irq: %d, ",
|
|
dev->bus->number, dev->devfn, dev->irq);
|
|
printk("memory: 0x%08lx.\n", ztv->zoran_adr);
|
|
|
|
ztv->zoran_mem = ioremap(ztv->zoran_adr, 0x1000);
|
|
DEBUG(printk(KERN_DEBUG "zoran: mapped-memory at 0x%p\n",ztv->zoran_mem));
|
|
|
|
result = request_irq(dev->irq, zoran_irq,
|
|
SA_SHIRQ|SA_INTERRUPT,"zoran", ztv);
|
|
if (result==-EINVAL)
|
|
{
|
|
iounmap(ztv->zoran_mem);
|
|
printk(KERN_ERR "zoran: Bad irq number or handler\n");
|
|
return -EINVAL;
|
|
}
|
|
if (result==-EBUSY)
|
|
printk(KERN_ERR "zoran: IRQ %d busy, change your PnP config in BIOS\n",dev->irq);
|
|
if (result < 0) {
|
|
iounmap(ztv->zoran_mem);
|
|
return result;
|
|
}
|
|
/* Enable bus-mastering */
|
|
pci_set_master(dev);
|
|
|
|
zoran_num++;
|
|
}
|
|
if(zoran_num)
|
|
printk(KERN_INFO "zoran: %d Zoran card(s) found.\n",zoran_num);
|
|
return zoran_num;
|
|
}
|
|
|
|
static
|
|
int __init init_zoran(int card)
|
|
{
|
|
struct zoran *ztv = &zorans[card];
|
|
int i;
|
|
|
|
/* if the given cardtype valid? */
|
|
if (cardtype[card]>=NRTVCARDS) {
|
|
printk(KERN_INFO "invalid cardtype(%d) detected\n",cardtype[card]);
|
|
return -1;
|
|
}
|
|
|
|
/* reset the zoran */
|
|
zrand(~ZORAN_PCI_SOFTRESET,ZORAN_PCI);
|
|
udelay(10);
|
|
zror(ZORAN_PCI_SOFTRESET,ZORAN_PCI);
|
|
udelay(10);
|
|
|
|
/* zoran chip specific details */
|
|
ztv->card = tvcards+cardtype[card]; /* point to the selected card */
|
|
ztv->norm = 0; /* PAL */
|
|
ztv->tuner_freq = 0;
|
|
|
|
/* videocard details */
|
|
ztv->swidth = 800;
|
|
ztv->sheight = 600;
|
|
ztv->depth = 16;
|
|
|
|
/* State details */
|
|
ztv->fbuffer = 0;
|
|
ztv->overinfo.kindof = FBUFFER_OVERLAY;
|
|
ztv->overinfo.status = FBUFFER_FREE;
|
|
ztv->overinfo.x = 0;
|
|
ztv->overinfo.y = 0;
|
|
ztv->overinfo.w = 768; /* 640 */
|
|
ztv->overinfo.h = 576; /* 480 */
|
|
ztv->overinfo.format = VIDEO_PALETTE_RGB565;
|
|
ztv->overinfo.bpp = palette2fmt[ztv->overinfo.format].bpp;
|
|
ztv->overinfo.bpl = ztv->overinfo.bpp*ztv->swidth;
|
|
ztv->overinfo.busadr = 0;
|
|
ztv->overinfo.memadr = 0;
|
|
ztv->overinfo.overlay = 0;
|
|
for (i=0; i<ZORAN_MAX_FBUFFERS; i++) {
|
|
ztv->grabinfo[i] = ztv->overinfo;
|
|
ztv->grabinfo[i].kindof = FBUFFER_GRAB;
|
|
}
|
|
init_waitqueue_head(&ztv->grabq);
|
|
|
|
/* VBI details */
|
|
ztv->readinfo[0] = ztv->overinfo;
|
|
ztv->readinfo[0].kindof = FBUFFER_VBI;
|
|
ztv->readinfo[0].w = -864;
|
|
ztv->readinfo[0].h = -38;
|
|
ztv->readinfo[0].format = VIDEO_PALETTE_YUV422;
|
|
ztv->readinfo[0].bpp = palette2fmt[ztv->readinfo[0].format].bpp;
|
|
ztv->readinfo[0].bpl = 1024*ztv->readinfo[0].bpp;
|
|
for (i=1; i<ZORAN_VBI_BUFFERS; i++)
|
|
ztv->readinfo[i] = ztv->readinfo[0];
|
|
init_waitqueue_head(&ztv->vbiq);
|
|
|
|
/* maintenance data */
|
|
ztv->have_decoder = 0;
|
|
ztv->have_tuner = 0;
|
|
ztv->tuner_type = 0;
|
|
ztv->running = 0;
|
|
ztv->users = 0;
|
|
rwlock_init(&ztv->lock);
|
|
ztv->workqueue = 0;
|
|
ztv->fieldnr = 0;
|
|
ztv->lastfieldnr = 0;
|
|
|
|
if (triton1)
|
|
zrand(~ZORAN_VDC_TRICOM, ZORAN_VDC);
|
|
|
|
/* external FL determines TOP frame */
|
|
zror(ZORAN_VFEC_EXTFL, ZORAN_VFEC);
|
|
|
|
/* set HSpol */
|
|
if (ztv->card->hsync_pos)
|
|
zrwrite(ZORAN_VFEH_HSPOL, ZORAN_VFEH);
|
|
/* set VSpol */
|
|
if (ztv->card->vsync_pos)
|
|
zrwrite(ZORAN_VFEV_VSPOL, ZORAN_VFEV);
|
|
|
|
/* Set the proper General Purpuse register bits */
|
|
/* implicit: no softreset, 0 waitstates */
|
|
zrwrite(ZORAN_PCI_SOFTRESET|(ztv->card->gpdir<<0),ZORAN_PCI);
|
|
/* implicit: 3 duration and recovery PCI clocks on guest 0-3 */
|
|
zrwrite(ztv->card->gpval<<24,ZORAN_GUEST);
|
|
|
|
/* clear interrupt status */
|
|
zrwrite(~0, ZORAN_ISR);
|
|
|
|
/*
|
|
* i2c template
|
|
*/
|
|
ztv->i2c = zoran_i2c_bus_template;
|
|
sprintf(ztv->i2c.name,"zoran-%d",card);
|
|
ztv->i2c.data = ztv;
|
|
|
|
/*
|
|
* Now add the template and register the device unit
|
|
*/
|
|
ztv->video_dev = zr36120_template;
|
|
strcpy(ztv->video_dev.name, ztv->i2c.name);
|
|
ztv->video_dev.priv = ztv;
|
|
if (video_register_device(&ztv->video_dev, VFL_TYPE_GRABBER, video_nr) < 0)
|
|
return -1;
|
|
|
|
ztv->vbi_dev = vbi_template;
|
|
strcpy(ztv->vbi_dev.name, ztv->i2c.name);
|
|
ztv->vbi_dev.priv = ztv;
|
|
if (video_register_device(&ztv->vbi_dev, VFL_TYPE_VBI, vbi_nr) < 0) {
|
|
video_unregister_device(&ztv->video_dev);
|
|
return -1;
|
|
}
|
|
i2c_register_bus(&ztv->i2c);
|
|
|
|
/* set interrupt mask - the PIN enable will be set later */
|
|
zrwrite(ZORAN_ICR_GIRQ0|ZORAN_ICR_GIRQ1|ZORAN_ICR_CODE, ZORAN_ICR);
|
|
|
|
printk(KERN_INFO "%s: installed %s\n",ztv->i2c.name,ztv->card->name);
|
|
return 0;
|
|
}
|
|
|
|
static
|
|
void release_zoran(int max)
|
|
{
|
|
struct zoran *ztv;
|
|
int i;
|
|
|
|
for (i=0;i<max; i++)
|
|
{
|
|
ztv = &zorans[i];
|
|
|
|
/* turn off all capturing, DMA and IRQs */
|
|
/* reset the zoran */
|
|
zrand(~ZORAN_PCI_SOFTRESET,ZORAN_PCI);
|
|
udelay(10);
|
|
zror(ZORAN_PCI_SOFTRESET,ZORAN_PCI);
|
|
udelay(10);
|
|
|
|
/* first disable interrupts before unmapping the memory! */
|
|
zrwrite(0, ZORAN_ICR);
|
|
zrwrite(0xffffffffUL,ZORAN_ISR);
|
|
|
|
/* free it */
|
|
free_irq(ztv->dev->irq,ztv);
|
|
|
|
/* unregister i2c_bus */
|
|
i2c_unregister_bus((&ztv->i2c));
|
|
|
|
/* unmap and free memory */
|
|
if (ztv->zoran_mem)
|
|
iounmap(ztv->zoran_mem);
|
|
|
|
video_unregister_device(&ztv->video_dev);
|
|
video_unregister_device(&ztv->vbi_dev);
|
|
}
|
|
}
|
|
|
|
void __exit zr36120_exit(void)
|
|
{
|
|
release_zoran(zoran_cards);
|
|
}
|
|
|
|
int __init zr36120_init(void)
|
|
{
|
|
int card;
|
|
|
|
handle_chipset();
|
|
zoran_cards = find_zoran();
|
|
if (zoran_cards<0)
|
|
/* no cards found, no need for a driver */
|
|
return -EIO;
|
|
|
|
/* initialize Zorans */
|
|
for (card=0; card<zoran_cards; card++) {
|
|
if (init_zoran(card)<0) {
|
|
/* only release the zorans we have registered */
|
|
release_zoran(card);
|
|
return -EIO;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
module_init(zr36120_init);
|
|
module_exit(zr36120_exit);
|