Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/media/video/zr36120.c b/drivers/media/video/zr36120.c
new file mode 100644
index 0000000..c335331
--- /dev/null
+++ b/drivers/media/video/zr36120.c
@@ -0,0 +1,2073 @@
+/*
+ zr36120.c - Zoran 36120/36125 based framegrabbers
+
+ Copyright (C) 1998-1999 Pauline Middelink <middelin@polyware.nl>
+
+ 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.
+*/
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/signal.h>
+#include <linux/wait.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <linux/sched.h>
+#include <linux/video_decoder.h>
+
+#include <asm/uaccess.h>
+
+#include "tuner.h"
+#include "zr36120.h"
+#include "zr36120_mem.h"
+
+/* mark an required function argument unused - lintism */
+#define UNUSED(x) (void)(x)
+
+/* sensible default */
+#ifndef CARDTYPE
+#define CARDTYPE 0
+#endif
+
+/* Anybody who uses more than four? */
+#define ZORAN_MAX 4
+
+static unsigned int triton1=0; /* triton1 chipset? */
+static unsigned int cardtype[ZORAN_MAX]={ [ 0 ... ZORAN_MAX-1 ] = CARDTYPE };
+static int video_nr = -1;
+static int vbi_nr = -1;
+
+static struct pci_device_id zr36120_pci_tbl[] = {
+ { PCI_VENDOR_ID_ZORAN,PCI_DEVICE_ID_ZORAN_36120,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, zr36120_pci_tbl);
+
+MODULE_AUTHOR("Pauline Middelink <middelin@polyware.nl>");
+MODULE_DESCRIPTION("Zoran ZR36120 based framegrabber");
+MODULE_LICENSE("GPL");
+
+MODULE_PARM(triton1,"i");
+MODULE_PARM(cardtype,"1-" __MODULE_STRING(ZORAN_MAX) "i");
+MODULE_PARM(video_nr,"i");
+MODULE_PARM(vbi_nr,"i");
+
+static int zoran_cards;
+static struct zoran zorans[ZORAN_MAX];
+
+/*
+ * the meaning of each element can be found in zr36120.h
+ * Determining the value of gpdir/gpval can be tricky. The
+ * best way is to run the card under the original software
+ * and read the values from the general purpose registers
+ * 0x28 and 0x2C. How you do that is left as an exercise
+ * to the impatient reader :)
+ */
+#define T 1 /* to separate the bools from the ints */
+#define F 0
+static struct tvcard tvcards[] = {
+ /* reported working by <middelin@polyware.nl> */
+/*0*/ { "Trust Victor II",
+ 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
+ /* reported working by <Michael.Paxton@aihw.gov.au> */
+/*1*/ { "Aitech WaveWatcher TV-PCI",
+ 3, 0, T, F, T, T, 0x7F, 0x80, { 1, TUNER(3), SVHS(6) }, { 0 } },
+ /* reported working by ? */
+/*2*/ { "Genius Video Wonder PCI Video Capture Card",
+ 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
+ /* reported working by <Pascal.Gabriel@wanadoo.fr> */
+/*3*/ { "Guillemot Maxi-TV PCI",
+ 2, 0, T, T, T, T, 0x7F, 0x80, { 1, SVHS(6) }, { 0 } },
+ /* reported working by "Craig Whitmore <lennon@igrin.co.nz> */
+/*4*/ { "Quadrant Buster",
+ 3, 3, T, F, T, T, 0x7F, 0x80, { SVHS(1), TUNER(2), 3 }, { 1, 2, 3 } },
+ /* a debug entry which has all inputs mapped */
+/*5*/ { "ZR36120 based framegrabber (all inputs enabled)",
+ 6, 0, T, T, T, T, 0x7F, 0x80, { 1, 2, 3, 4, 5, 6 }, { 0 } }
+};
+#undef T
+#undef F
+#define NRTVCARDS (sizeof(tvcards)/sizeof(tvcards[0]))
+
+#ifdef __sparc__
+#define ENDIANESS 0
+#else
+#define ENDIANESS ZORAN_VFEC_LE
+#endif
+
+static struct { const char name[8]; uint mode; uint bpp; } palette2fmt[] = {
+/* n/a */ { "n/a", 0, 0 },
+/* GREY */ { "GRAY", 0, 0 },
+/* HI240 */ { "HI240", 0, 0 },
+/* RGB565 */ { "RGB565", ZORAN_VFEC_RGB_RGB565|ENDIANESS, 2 },
+/* RGB24 */ { "RGB24", ZORAN_VFEC_RGB_RGB888|ENDIANESS|ZORAN_VFEC_PACK24, 3 },
+/* RGB32 */ { "RGB32", ZORAN_VFEC_RGB_RGB888|ENDIANESS, 4 },
+/* RGB555 */ { "RGB555", ZORAN_VFEC_RGB_RGB555|ENDIANESS, 2 },
+/* YUV422 */ { "YUV422", ZORAN_VFEC_RGB_YUV422|ENDIANESS, 2 },
+/* YUYV */ { "YUYV", 0, 0 },
+/* UYVY */ { "UYVY", 0, 0 },
+/* YUV420 */ { "YUV420", 0, 0 },
+/* YUV411 */ { "YUV411", 0, 0 },
+/* RAW */ { "RAW", 0, 0 },
+/* YUV422P */ { "YUV422P", 0, 0 },
+/* YUV411P */ { "YUV411P", 0, 0 }};
+#define NRPALETTES (sizeof(palette2fmt)/sizeof(palette2fmt[0]))
+#undef ENDIANESS
+
+/* ----------------------------------------------------------------------- */
+/* ZORAN chipset detector */
+/* shamelessly stolen from bttv.c */
+/* Reason for beeing here: we need to detect if we are running on a */
+/* Triton based chipset, and if so, enable a certain bit */
+/* ----------------------------------------------------------------------- */
+static
+void __init handle_chipset(void)
+{
+ /* Just in case some nut set this to something dangerous */
+ if (triton1)
+ triton1 = ZORAN_VDC_TRICOM;
+
+ if (pci_pci_problems & PCIPCI_TRITON) {
+ printk(KERN_INFO "zoran: Host bridge 82437FX Triton PIIX\n");
+ triton1 = ZORAN_VDC_TRICOM;
+ }
+}
+
+/* ----------------------------------------------------------------------- */
+/* ZORAN functions */
+/* ----------------------------------------------------------------------- */
+
+static void zoran_set_geo(struct zoran* ztv, struct vidinfo* i);
+
+#if 0 /* unused */
+static
+void zoran_dump(struct zoran *ztv)
+{
+ char str[256];
+ char *p=str; /* shut up, gcc! */
+ int i;
+
+ for (i=0; i<0x60; i+=4) {
+ if ((i % 16) == 0) {
+ if (i) printk("%s\n",str);
+ p = str;
+ p+= sprintf(str, KERN_DEBUG " %04x: ",i);
+ }
+ p += sprintf(p, "%08x ",zrread(i));
+ }
+}
+#endif /* unused */
+
+static
+void reap_states(struct zoran* ztv)
+{
+ /* count frames */
+ ztv->fieldnr++;
+
+ /*
+ * Are we busy at all?
+ * This depends on if there is a workqueue AND the
+ * videotransfer is enabled on the chip...
+ */
+ if (ztv->workqueue && (zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN))
+ {
+ struct vidinfo* newitem;
+
+ /* did we get a complete frame? */
+ if (zrread(ZORAN_VSTR) & ZORAN_VSTR_GRAB)
+ return;
+
+DEBUG(printk(CARD_DEBUG "completed %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue));
+
+ /* we are done with this buffer, tell everyone */
+ ztv->workqueue->status = FBUFFER_DONE;
+ ztv->workqueue->fieldnr = ztv->fieldnr;
+ /* not good, here for BTTV_FIELDNR reasons */
+ ztv->lastfieldnr = ztv->fieldnr;
+
+ switch (ztv->workqueue->kindof) {
+ case FBUFFER_GRAB:
+ wake_up_interruptible(&ztv->grabq);
+ break;
+ case FBUFFER_VBI:
+ wake_up_interruptible(&ztv->vbiq);
+ break;
+ default:
+ printk(CARD_INFO "somebody killed the workqueue (kindof=%d)!\n",CARD,ztv->workqueue->kindof);
+ }
+
+ /* item completed, skip to next item in queue */
+ write_lock(&ztv->lock);
+ newitem = ztv->workqueue->next;
+ ztv->workqueue->next = 0; /* mark completed */
+ ztv->workqueue = newitem;
+ write_unlock(&ztv->lock);
+ }
+
+ /*
+ * ok, so it seems we have nothing in progress right now.
+ * Lets see if we can find some work.
+ */
+ if (ztv->workqueue)
+ {
+ struct vidinfo* newitem;
+again:
+
+DEBUG(printk(CARD_DEBUG "starting %s at %p\n",CARD,ztv->workqueue->kindof==FBUFFER_GRAB?"grab":"read",ztv->workqueue));
+
+ /* loadup the frame settings */
+ read_lock(&ztv->lock);
+ zoran_set_geo(ztv,ztv->workqueue);
+ read_unlock(&ztv->lock);
+
+ switch (ztv->workqueue->kindof) {
+ case FBUFFER_GRAB:
+ case FBUFFER_VBI:
+ zrand(~ZORAN_OCR_OVLEN, ZORAN_OCR);
+ zror(ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR);
+ zror(ZORAN_VDC_VIDEN,ZORAN_VDC);
+
+ /* start single-shot grab */
+ zror(ZORAN_VSTR_GRAB, ZORAN_VSTR);
+ break;
+ default:
+ printk(CARD_INFO "what is this doing on the queue? (kindof=%d)\n",CARD,ztv->workqueue->kindof);
+ write_lock(&ztv->lock);
+ newitem = ztv->workqueue->next;
+ ztv->workqueue->next = 0;
+ ztv->workqueue = newitem;
+ write_unlock(&ztv->lock);
+ if (newitem)
+ goto again; /* yeah, sure.. */
+ }
+ /* bye for now */
+ return;
+ }
+DEBUG(printk(CARD_DEBUG "nothing in queue\n",CARD));
+
+ /*
+ * What? Even the workqueue is empty? Am i really here
+ * for nothing? Did i come all that way to... do nothing?
+ */
+
+ /* do we need to overlay? */
+ if (test_bit(STATE_OVERLAY, &ztv->state))
+ {
+ /* are we already overlaying? */
+ if (!(zrread(ZORAN_OCR) & ZORAN_OCR_OVLEN) ||
+ !(zrread(ZORAN_VDC) & ZORAN_VDC_VIDEN))
+ {
+DEBUG(printk(CARD_DEBUG "starting overlay\n",CARD));
+
+ read_lock(&ztv->lock);
+ zoran_set_geo(ztv,&ztv->overinfo);
+ read_unlock(&ztv->lock);
+
+ zror(ZORAN_OCR_OVLEN, ZORAN_OCR);
+ zrand(~ZORAN_VSTR_SNAPSHOT,ZORAN_VSTR);
+ zror(ZORAN_VDC_VIDEN,ZORAN_VDC);
+ }
+
+ /*
+ * leave overlaying on, but turn interrupts off.
+ */
+ zrand(~ZORAN_ICR_EN,ZORAN_ICR);
+ return;
+ }
+
+ /* do we have any VBI idle time processing? */
+ if (test_bit(STATE_VBI, &ztv->state))
+ {
+ struct vidinfo* item;
+ struct vidinfo* lastitem;
+
+ /* protect the workqueue */
+ write_lock(&ztv->lock);
+ lastitem = ztv->workqueue;
+ if (lastitem)
+ while (lastitem->next) lastitem = lastitem->next;
+ for (item=ztv->readinfo; item!=ztv->readinfo+ZORAN_VBI_BUFFERS; item++)
+ if (item->next == 0 && item->status == FBUFFER_FREE)
+ {
+DEBUG(printk(CARD_DEBUG "%p added to queue\n",CARD,item));
+ item->status = FBUFFER_BUSY;
+ if (!lastitem)
+ ztv->workqueue = item;
+ else
+ lastitem->next = item;
+ lastitem = item;
+ }
+ write_unlock(&ztv->lock);
+ if (ztv->workqueue)
+ goto again; /* hey, _i_ graduated :) */
+ }
+
+ /*
+ * Then we must be realy IDLE
+ */
+DEBUG(printk(CARD_DEBUG "turning off\n",CARD));
+ /* nothing further to do, disable DMA and further IRQs */
+ zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
+ zrand(~ZORAN_ICR_EN,ZORAN_ICR);
+}
+
+static
+void zoran_irq(int irq, void *dev_id, struct pt_regs * regs)
+{
+ u32 stat,estat;
+ int count = 0;
+ struct zoran *ztv = dev_id;
+
+ UNUSED(irq); UNUSED(regs);
+ for (;;) {
+ /* get/clear interrupt status bits */
+ stat=zrread(ZORAN_ISR);
+ estat=stat & zrread(ZORAN_ICR);
+ if (!estat)
+ return;
+ zrwrite(estat,ZORAN_ISR);
+ IDEBUG(printk(CARD_DEBUG "estat %08x\n",CARD,estat));
+ IDEBUG(printk(CARD_DEBUG " stat %08x\n",CARD,stat));
+
+ if (estat & ZORAN_ISR_CODE)
+ {
+ IDEBUG(printk(CARD_DEBUG "CodReplIRQ\n",CARD));
+ }
+ if (estat & ZORAN_ISR_GIRQ0)
+ {
+ IDEBUG(printk(CARD_DEBUG "GIRQ0\n",CARD));
+ if (!ztv->card->usegirq1)
+ reap_states(ztv);
+ }
+ if (estat & ZORAN_ISR_GIRQ1)
+ {
+ IDEBUG(printk(CARD_DEBUG "GIRQ1\n",CARD));
+ if (ztv->card->usegirq1)
+ reap_states(ztv);
+ }
+
+ count++;
+ if (count > 10)
+ printk(CARD_ERR "irq loop %d (%x)\n",CARD,count,estat);
+ if (count > 20)
+ {
+ zrwrite(0, ZORAN_ICR);
+ printk(CARD_ERR "IRQ lockup, cleared int mask\n",CARD);
+ }
+ }
+}
+
+static
+int zoran_muxsel(struct zoran* ztv, int channel, int norm)
+{
+ int rv;
+
+ /* set the new video norm */
+ rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &norm);
+ if (rv)
+ return rv;
+ ztv->norm = norm;
+
+ /* map the given channel to the cards decoder's channel */
+ channel = ztv->card->video_mux[channel] & CHANNEL_MASK;
+
+ /* set the new channel */
+ rv = i2c_control_device(&(ztv->i2c), I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &channel);
+ return rv;
+}
+
+/* Tell the interrupt handler what to to. */
+static
+void zoran_cap(struct zoran* ztv, int on)
+{
+DEBUG(printk(CARD_DEBUG "zoran_cap(%d) state=%x\n",CARD,on,ztv->state));
+
+ if (on) {
+ ztv->running = 1;
+
+ /*
+ * turn interrupts (back) on. The DMA will be enabled
+ * inside the irq handler when it detects a restart.
+ */
+ zror(ZORAN_ICR_EN,ZORAN_ICR);
+ }
+ else {
+ /*
+ * turn both interrupts and DMA off
+ */
+ zrand(~ZORAN_VDC_VIDEN,ZORAN_VDC);
+ zrand(~ZORAN_ICR_EN,ZORAN_ICR);
+
+ ztv->running = 0;
+ }
+}
+
+static ulong dmask[] = {
+ 0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFC, 0xFFFFFFF8,
+ 0xFFFFFFF0, 0xFFFFFFE0, 0xFFFFFFC0, 0xFFFFFF80,
+ 0xFFFFFF00, 0xFFFFFE00, 0xFFFFFC00, 0xFFFFF800,
+ 0xFFFFF000, 0xFFFFE000, 0xFFFFC000, 0xFFFF8000,
+ 0xFFFF0000, 0xFFFE0000, 0xFFFC0000, 0xFFF80000,
+ 0xFFF00000, 0xFFE00000, 0xFFC00000, 0xFF800000,
+ 0xFF000000, 0xFE000000, 0xFC000000, 0xF8000000,
+ 0xF0000000, 0xE0000000, 0xC0000000, 0x80000000
+};
+
+static
+void zoran_built_overlay(struct zoran* ztv, int count, struct video_clip *vcp)
+{
+ ulong* mtop;
+ int ystep = (ztv->vidXshift + ztv->vidWidth+31)/32; /* next DWORD */
+ int i;
+
+DEBUG(printk(KERN_DEBUG " overlay at %p, ystep=%d, clips=%d\n",ztv->overinfo.overlay,ystep,count));
+
+ for (i=0; i<count; i++) {
+ struct video_clip *vp = vcp+i;
+ UNUSED(vp);
+DEBUG(printk(KERN_DEBUG " %d: clip(%d,%d,%d,%d)\n", i,vp->x,vp->y,vp->width,vp->height));
+ }
+
+ /*
+ * activate the visible portion of the screen
+ * Note we take some shortcuts here, because we
+ * know the width can never be < 32. (I.e. a DWORD)
+ * We also assume the overlay starts somewhere in
+ * the FIRST dword.
+ */
+ {
+ int start = ztv->vidXshift;
+ ulong firstd = dmask[start];
+ ulong lastd = ~dmask[(start + ztv->overinfo.w) & 31];
+ 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);