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Commit af249982 authored by Adrian Bunk's avatar Adrian Bunk Committed by Mauro Carvalho Chehab
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V4L/DVB (4887): Remove the broken VIDEO_ZR36120 driver 

The VIDEO_ZR36120 driver has:
- already been marked as BROKEN in 2.6.0 three years ago and
- is still marked as BROKEN.
Drivers that had been marked as BROKEN for such a long time seem to be 
unlikely to be revived in the forseeable future.
But if anyone wants to ever revive this driver, the code is still 
present in the older kernel releases.
Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
Acked-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent d0d30c03
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Documentation/video4linux/zr36120.txt deleted 100644 → 0
View file @ d0d30c03
Driver for Trust Computer Products Framegrabber, version 0.6.1
------ --- ----- -------- -------- ------------ ------- - - -
- ZORAN ------------------------------------------------------
Author: Pauline Middelink <middelin@polyware.nl>
Date: 18 September 1999
Version: 0.6.1
- Description ------------------------------------------------
Video4Linux compatible driver for an unknown brand framegrabber
(Sold in the Netherlands by TRUST Computer Products) and various
other zoran zr36120 based framegrabbers.
The card contains a ZR36120 Multimedia PCI Interface and a Philips
SAA7110 Onechip Frontend videodecoder. There is also an DSP of
which I have forgotten the number, since i will never get that thing
to work without specs from the vendor itself.
The SAA711x are capable of processing 6 different video inputs,
CVBS1..6 and Y1+C1, Y2+C2, Y3+C3. All in 50/60Hz, NTSC, PAL or
SECAM and delivering a YUV datastream. On my card the input
'CVBS-0' corresponds to channel CVBS2 and 'S-Video' to Y2+C2.
I have some reports of other cards working with the mentioned
chip sets. For a list of other working cards please have a look
at the cards named in the tvcards struct in the beginning of
zr36120.c
After some testing, I discovered that the carddesigner messed up
on the I2C interface. The Zoran chip includes 2 lines SDA and SCL
which (s)he connected reversely. So we have to clock on the SDA
and r/w data on the SCL pin. Life is fun... Each cardtype now has
a bit which signifies if you have a card with the same deficiency.
Oh, for the completeness of this story I must mention that my
card delivers the VSYNC pulse of the SAA chip to GIRQ1, not
GIRQ0 as some other cards have. This is also incorporated in
the driver be clearing/setting the 'useirq1' bit in the tvcard
description.
Another problems of continuous capturing data with a Zoran chip
is something nasty inside the chip. It effectively halves the
fps we ought to get... Here is the scenario: capturing frames
to memory is done in the so-called snapshot mode. In this mode
the Zoran stops after capturing a frame worth of data and wait
till the application set GRAB bit to indicate readiness for the
next frame. After detecting a set bit, the chip neatly waits
till the start of a frame, captures it and it goes back to off.
Smart ppl will notice the problem here. Its the waiting on the
_next_ frame each time we set the GRAB bit... Oh well, 12,5 fps
is still plenty fast for me.
-- update 28/7/1999 --
Don't believe a word I just said... Proof is the output
of `streamer -t 300 -r 25 -f avi15 -o /dev/null`
++--+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+- 25/25
+-s+-+-+-+-+-+-+-+-+-+-+-+-+-s+-+-+-+-+-+-+-+-+-+-+-
syncer: done
writer: done
(note the /dev/null is prudent here, my system is not able to
grab /and/ write 25 fps to a file... gifts welcome :) )
The technical reasoning follows: The zoran completed the last
frame, the VSYNC goes low, and GRAB is cleared. The interrupt
routine starts to work since its VSYNC driven, and again
activates the GRAB bit. A few ms later the VSYNC (re-)rises and
the zoran starts to work on a new and freshly broadcasted frame....
For pointers I used the specs of both chips. Below are the URLs:
http://www.zoran.com/ftp/download/devices/pci/ZR36120/36120data.pdf
http://www-us.semiconductor.philips.com/acrobat/datasheets/SAA_7110_A_1.pdf
Some alternatives for the Philips SAA 7110 datasheet are:
http://www.datasheetcatalog.com/datasheets_pdf/S/A/A/7/SAA7110.shtml
http://www.datasheetarchive.com/search.php?search=SAA7110&sType=part
The documentation has very little on absolute numbers or timings
needed for the various modes/resolutions, but there are other
programs you can borrow those from.
------ Install --------------------------------------------
Read the file called TODO. Note its long list of limitations.
Build a kernel with VIDEO4LINUX enabled. Activate the
BT848 driver; we need this because we have need for the
other modules (i2c and videodev) it enables.
To install this software, extract it into a suitable directory.
Examine the makefile and change anything you don't like. Type "make".
After making the modules check if you have the much needed
/dev/video devices. If not, execute the following 4 lines:
mknod /dev/video c 81 0
mknod /dev/video1 c 81 1
mknod /dev/video2 c 81 2
mknod /dev/video3 c 81 3
mknod /dev/video4 c 81 4
After making/checking the devices do:
modprobe i2c
modprobe videodev
modprobe saa7110 (optional)
modprobe saa7111 (optional)
modprobe tuner (optional)
insmod zoran cardtype=<n>
<n> is the cardtype of the card you have. The cardnumber can
be found in the source of zr36120. Look for tvcards. If your
card is not there, please try if any other card gives some
response, and mail me if you got a working tvcard addition.
PS. <TVCard editors behold!)
Don't forget to set video_input to the number of inputs
you defined in the video_mux part of the tvcard definition.
It's a common error to add a channel but not incrementing
video_input and getting angry with me/v4l/linux/linus :(
You are now ready to test the framegrabber with your favorite
video4linux compatible tool
------ Application ----------------------------------------
This device works with all Video4Linux compatible applications,
given the limitations in the TODO file.
------ API ------------------------------------------------
This uses the V4L interface as of kernel release 2.1.116, and in
fact has not been tested on any lower version. There are a couple
of minor differences due to the fact that the amount of data returned
with each frame varies, and no doubt there are discrepancies due to my
misunderstanding of the API. I intend to convert this driver to the
new V4L2 API when it has stabilized more.
------ Current state --------------------------------------
The driver is capable of overlaying a video image in screen, and
even capable of grabbing frames. It uses the BIGPHYSAREA patch
to allocate lots of large memory blocks when tis patch is
found in the kernel, but it doesn't need it.
The consequence is that, when loading the driver as a module,
the module may tell you it's out of memory, but 'free' says
otherwise. The reason is simple; the modules wants its memory
contiguous, not fragmented, and after a long uptime there
probably isn't a fragment of memory large enough...
The driver uses a double buffering scheme, which should really
be an n-way buffer, depending on the size of allocated framebuffer
and the requested grab-size/format.
This current version also fixes a dead-lock situation during irq
time, which really, really froze my system... :)
Good luck.
Pauline
drivers/media/video/Kconfig
View file @ af249982
......@@ -575,18 +575,6 @@ config VIDEO_ZORAN_AVS6EYES
help
Support for the AverMedia 6 Eyes video surveillance card.
config VIDEO_ZR36120
tristate "Zoran ZR36120/36125 Video For Linux"
depends on PCI && I2C && VIDEO_V4L1 && BROKEN
help
Support for ZR36120/ZR36125 based frame grabber/overlay boards.
This includes the Victor II, WaveWatcher, Video Wonder, Maxi-TV,
and Buster boards. Please read the material in
<file:Documentation/video4linux/zr36120.txt> for more information.
To compile this driver as a module, choose M here: the
module will be called zr36120.
config VIDEO_MEYE
tristate "Sony Vaio Picturebook Motion Eye Video For Linux"
depends on PCI && SONYPI && VIDEO_V4L1
......
drivers/media/video/Makefile
View file @ af249982
......@@ -2,7 +2,6 @@
# Makefile for the video capture/playback device drivers.
#
zoran-objs := zr36120.o zr36120_i2c.o zr36120_mem.o
zr36067-objs := zoran_procfs.o zoran_device.o \
zoran_driver.o zoran_card.o
tuner-objs := tuner-core.o tuner-types.o tuner-simple.o \
......@@ -23,7 +22,6 @@ obj-$(CONFIG_VIDEO_TDA7432) += tda7432.o
obj-$(CONFIG_VIDEO_TDA9875) += tda9875.o
obj-$(CONFIG_SOUND_TVMIXER) += tvmixer.o
obj-$(CONFIG_VIDEO_ZR36120) += zoran.o
obj-$(CONFIG_VIDEO_SAA6588) += saa6588.o
obj-$(CONFIG_VIDEO_SAA5246A) += saa5246a.o
obj-$(CONFIG_VIDEO_SAA5249) += saa5249.o
......
drivers/media/video/zr36120.c deleted 100644 → 0
View file @ d0d30c03
/*
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_param(triton1, uint, 0);
module_param_array(cardtype, uint, NULL, 0);
module_param(video_nr, int, 0);
module_param(vbi_nr, int, 0);
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)
{
u32 stat,estat;
int count = 0;
struct zoran *ztv = dev_id;
UNUSED(irq);
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 */
bfree(ztv->fbuffer, ZORAN_MAX_FBUFSIZE);
ztv->fbuffer = 0;
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 (pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL))
c.type &= ~VID_TYPE_OVERLAY;
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 (pcipci_problems & (PCIPCI_FAIL|PCIAGP_FAIL))
return -ENXIO;
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,
.compat_ioctl = v4l_compat_ioctl32,
.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_get_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))
continue;
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,
IRQF_SHARED|IRQF_DISABLED,"zoran", ztv);
if (result==-EINVAL)
{
iounmap(ztv->zoran_mem);
printk(KERN_ERR "zoran: Bad irq number or handler\n");
continue;
}
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);
continue;
}
/* Enable bus-mastering */
pci_set_master(dev);
/* Keep a reference */
pci_dev_get(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);
/* Drop PCI device */
pci_dev_put(ztv->dev);
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)
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);
drivers/media/video/zr36120.h deleted 100644 → 0
View file @ d0d30c03
/*
zr36120.h - 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.
*/
#ifndef _ZR36120_H
#define _ZR36120_H
#ifdef __KERNEL__
#include <linux/types.h>
#include <linux/wait.h>
#include <linux/i2c-old.h>
#include <linux/videodev.h>
#include <asm/io.h>
/*
* Debug macro's, place an x behind the ) for actual debug-compilation
* E.g. #define DEBUG(x...) x
*/
#define DEBUG(x...) /* Debug driver */
#define IDEBUG(x...) /* Debug interrupt handler */
#define PDEBUG 0 /* Debug PCI writes */
/* defined in zr36120_i2c */
extern struct i2c_bus zoran_i2c_bus_template;
#define ZORAN_MAX_FBUFFERS 2
#define ZORAN_MAX_FBUFFER (768*576*2)
#define ZORAN_MAX_FBUFSIZE (ZORAN_MAX_FBUFFERS*ZORAN_MAX_FBUFFER)
#define ZORAN_VBI_BUFFERS 2
#define ZORAN_VBI_BUFSIZE (22*1024*2)
struct tvcard {
char* name; /* name of the cardtype */
int video_inputs; /* number of channels defined in video_mux */
int audio_inputs; /* number of channels defined in audio_mux */
__u32 swapi2c:1, /* need to swap i2c wires SDA/SCL? */
usegirq1:1, /* VSYNC at GIRQ1 instead of GIRQ0? */
vsync_pos:1, /* positive VSYNC signal? */
hsync_pos:1, /* positive HSYNC signal? */
gpdir:8, /* General Purpose Direction register */
gpval:8; /* General Purpose Value register */
int video_mux[6]; /* mapping channel number to physical input */
#define IS_TUNER 0x80
#define IS_SVHS 0x40
#define CHANNEL_MASK 0x3F
int audio_mux[6]; /* mapping channel number to physical input */
};
#define TUNER(x) ((x)|IS_TUNER)
#define SVHS(x) ((x)|IS_SVHS)
struct vidinfo {
struct vidinfo* next; /* next active buffer */
uint kindof;
#define FBUFFER_OVERLAY 0
#define FBUFFER_GRAB 1
#define FBUFFER_VBI 2
uint status;
#define FBUFFER_FREE 0
#define FBUFFER_BUSY 1
#define FBUFFER_DONE 2
ulong fieldnr; /* # of field, not framer! */
uint x,y;
int w,h; /* w,h can be negative! */
uint format; /* index in palette2fmt[] */
uint bpp; /* lookup from palette2fmt[] */
uint bpl; /* calc: width * bpp */
ulong busadr; /* bus addr for DMA engine */
char* memadr; /* kernel addr for making copies */
ulong* overlay; /* kernel addr of overlay mask */
};
struct zoran
{
struct video_device video_dev;
#define CARD_DEBUG KERN_DEBUG "%s(%lu): "
#define CARD_INFO KERN_INFO "%s(%lu): "
#define CARD_ERR KERN_ERR "%s(%lu): "
#define CARD ztv->video_dev.name,ztv->fieldnr
/* zoran chip specific details */
struct i2c_bus i2c; /* i2c registration data */
struct pci_dev* dev; /* ptr to PCI device */
ulong zoran_adr; /* bus address of IO memory */
char* zoran_mem; /* kernel address of IO memory */
struct tvcard* card; /* the cardtype */
uint norm; /* 0=PAL, 1=NTSC, 2=SECAM */
uint tuner_freq; /* Current freq in kHz */
struct video_picture picture; /* Current picture params */
/* videocard details */
uint swidth; /* screen width */
uint sheight; /* screen height */
uint depth; /* depth in bits */
/* State details */
char* fbuffer; /* framebuffers for mmap */
struct vidinfo overinfo; /* overlay data */
struct vidinfo grabinfo[ZORAN_MAX_FBUFFERS]; /* grabbing data*/
wait_queue_head_t grabq; /* grabbers queue */
/* VBI details */
struct video_device vbi_dev;
struct vidinfo readinfo[2]; /* VBI data - flip buffers */
wait_queue_head_t vbiq; /* vbi queue */
/* maintenance data */
int have_decoder; /* did we detect a mux? */
int have_tuner; /* did we detect a tuner? */
int users; /* howmany video/vbi open? */
int tuner_type; /* tuner type, when found */
int running; /* are we rolling? */
rwlock_t lock;
long state; /* what is requested of us? */
#define STATE_OVERLAY 0
#define STATE_VBI 1
struct vidinfo* workqueue; /* buffers to grab, head is active */
ulong fieldnr; /* #field, ticked every VSYNC */
ulong lastfieldnr; /* #field, ticked every GRAB */
int vidInterlace; /* calculated */
int vidXshift; /* calculated */
uint vidWidth; /* calculated */
uint vidHeight; /* calculated */
};
#define zrwrite(dat,adr) writel((dat),(char *) (ztv->zoran_mem+(adr)))
#define zrread(adr) readl(ztv->zoran_mem+(adr))
#if PDEBUG == 0
#define zrand(dat,adr) zrwrite((dat) & zrread(adr), adr)
#define zror(dat,adr) zrwrite((dat) | zrread(adr), adr)
#define zraor(dat,mask,adr) zrwrite( ((dat)&~(mask)) | ((mask)&zrread(adr)), adr)
#else
#define zrand(dat, adr) \
do { \
ulong data = (dat) & zrread((adr)); \
zrwrite(data, (adr)); \
if (0 != (~(dat) & zrread((adr)))) \
printk(KERN_DEBUG "zoran: zrand at %d(%d) detected set bits(%x)\n", __LINE__, (adr), (dat)); \
} while(0)
#define zror(dat, adr) \
do { \
ulong data = (dat) | zrread((adr)); \
zrwrite(data, (adr)); \
if ((dat) != ((dat) & zrread(adr))) \
printk(KERN_DEBUG "zoran: zror at %d(%d) detected unset bits(%x)\n", __LINE__, (adr), (dat)); \
} while(0)
#define zraor(dat, mask, adr) \
do { \
ulong data; \
if ((dat) & (mask)) \
printk(KERN_DEBUG "zoran: zraor at %d(%d) detected bits(%x:%x)\n", __LINE__, (adr), (dat), (mask)); \
data = ((dat)&~(mask)) | ((mask) & zrread((adr))); \
zrwrite(data,(adr)); \
if ( (dat) != (~(mask) & zrread((adr))) ) \
printk(KERN_DEBUG "zoran: zraor at %d(%d) could not set all bits(%x:%x)\n", __LINE__, (adr), (dat), (mask)); \
} while(0)
#endif
#endif
/* zoran PCI address space */
#define ZORAN_VFEH 0x000 /* Video Front End Horizontal Conf. */
#define ZORAN_VFEH_HSPOL (1<<30)
#define ZORAN_VFEH_HSTART (0x3FF<<10)
#define ZORAN_VFEH_HEND (0x3FF<<0)
#define ZORAN_VFEV 0x004 /* Video Front End Vertical Conf. */
#define ZORAN_VFEV_VSPOL (1<<30)
#define ZORAN_VFEV_VSTART (0x3FF<<10)
#define ZORAN_VFEV_VEND (0x3FF<<0)
#define ZORAN_VFEC 0x008 /* Video Front End Scaler and Pixel */
#define ZORAN_VFEC_EXTFL (1<<26)
#define ZORAN_VFEC_TOPFIELD (1<<25)
#define ZORAN_VFEC_VCLKPOL (1<<24)
#define ZORAN_VFEC_HFILTER (7<<21)
#define ZORAN_VFEC_HFILTER_1 (0<<21) /* no lumi, 3-tap chromo */
#define ZORAN_VFEC_HFILTER_2 (1<<21) /* 3-tap lumi, 3-tap chromo */
#define ZORAN_VFEC_HFILTER_3 (2<<21) /* 4-tap lumi, 4-tap chromo */
#define ZORAN_VFEC_HFILTER_4 (3<<21) /* 5-tap lumi, 4-tap chromo */
#define ZORAN_VFEC_HFILTER_5 (4<<21) /* 4-tap lumi, 4-tap chromo */
#define ZORAN_VFEC_DUPFLD (1<<20)
#define ZORAN_VFEC_HORDCM (63<<14)
#define ZORAN_VFEC_VERDCM (63<<8)
#define ZORAN_VFEC_DISPMOD (1<<6)
#define ZORAN_VFEC_RGB (3<<3)
#define ZORAN_VFEC_RGB_YUV422 (0<<3)
#define ZORAN_VFEC_RGB_RGB888 (1<<3)
#define ZORAN_VFEC_RGB_RGB565 (2<<3)
#define ZORAN_VFEC_RGB_RGB555 (3<<3)
#define ZORAN_VFEC_ERRDIF (1<<2)
#define ZORAN_VFEC_PACK24 (1<<1)
#define ZORAN_VFEC_LE (1<<0)
#define ZORAN_VTOP 0x00C /* Video Display "Top" */
#define ZORAN_VBOT 0x010 /* Video Display "Bottom" */
#define ZORAN_VSTR 0x014 /* Video Display Stride */
#define ZORAN_VSTR_DISPSTRIDE (0xFFFF<<16)
#define ZORAN_VSTR_VIDOVF (1<<8)
#define ZORAN_VSTR_SNAPSHOT (1<<1)
#define ZORAN_VSTR_GRAB (1<<0)
#define ZORAN_VDC 0x018 /* Video Display Conf. */
#define ZORAN_VDC_VIDEN (1<<31)
#define ZORAN_VDC_MINPIX (0x1F<<25)
#define ZORAN_VDC_TRICOM (1<<24)
#define ZORAN_VDC_VIDWINHT (0x3FF<<12)
#define ZORAN_VDC_VIDWINWID (0x3FF<<0)
#define ZORAN_MTOP 0x01C /* Masking Map "Top" */
#define ZORAN_MBOT 0x020 /* Masking Map "Bottom" */
#define ZORAN_OCR 0x024 /* Overlay Control */
#define ZORAN_OCR_OVLEN (1<<15)
#define ZORAN_OCR_MASKSTRIDE (0xFF<<0)
#define ZORAN_PCI 0x028 /* System, PCI and GPP Control */
#define ZORAN_PCI_SOFTRESET (1<<24)
#define ZORAN_PCI_WAITSTATE (3<<16)
#define ZORAN_PCI_GENPURDIR (0xFF<<0)
#define ZORAN_GUEST 0x02C /* GuestBus Control */
#define ZORAN_CSOURCE 0x030 /* Code Source Address */
#define ZORAN_CTRANS 0x034 /* Code Transfer Control */
#define ZORAN_CMEM 0x038 /* Code Memory Pointer */
#define ZORAN_ISR 0x03C /* Interrupt Status Register */
#define ZORAN_ISR_CODE (1<<28)
#define ZORAN_ISR_GIRQ0 (1<<29)
#define ZORAN_ISR_GIRQ1 (1<<30)
#define ZORAN_ICR 0x040 /* Interrupt Control Register */
#define ZORAN_ICR_EN (1<<24)
#define ZORAN_ICR_CODE (1<<28)
#define ZORAN_ICR_GIRQ0 (1<<29)
#define ZORAN_ICR_GIRQ1 (1<<30)
#define ZORAN_I2C 0x044 /* I2C-Bus */
#define ZORAN_I2C_SCL (1<<1)
#define ZORAN_I2C_SDA (1<<0)
#define ZORAN_POST 0x48 /* PostOffice */
#define ZORAN_POST_PEN (1<<25)
#define ZORAN_POST_TIME (1<<24)
#define ZORAN_POST_DIR (1<<23)
#define ZORAN_POST_GUESTID (3<<20)
#define ZORAN_POST_GUEST (7<<16)
#define ZORAN_POST_DATA (0xFF<<0)
#endif
drivers/media/video/zr36120_i2c.c deleted 100644 → 0
View file @ d0d30c03
/*
zr36120_i2c.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/types.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <linux/video_decoder.h>
#include <asm/uaccess.h>
#include "tuner.h"
#include "zr36120.h"
/* ----------------------------------------------------------------------- */
/* I2C functions */
/* ----------------------------------------------------------------------- */
/* software I2C functions */
#define I2C_DELAY 10
static void i2c_setlines(struct i2c_bus *bus,int ctrl,int data)
{
struct zoran *ztv = (struct zoran*)bus->data;
unsigned int b = 0;
if (data) b |= ztv->card->swapi2c ? ZORAN_I2C_SCL : ZORAN_I2C_SDA;
if (ctrl) b |= ztv->card->swapi2c ? ZORAN_I2C_SDA : ZORAN_I2C_SCL;
zrwrite(b, ZORAN_I2C);
udelay(I2C_DELAY);
}
static int i2c_getdataline(struct i2c_bus *bus)
{
struct zoran *ztv = (struct zoran*)bus->data;
if (ztv->card->swapi2c)
return zrread(ZORAN_I2C) & ZORAN_I2C_SCL;
return zrread(ZORAN_I2C) & ZORAN_I2C_SDA;
}
static
void attach_inform(struct i2c_bus *bus, int id)
{
struct zoran *ztv = (struct zoran*)bus->data;
struct video_decoder_capability dc;
int rv;
switch (id) {
case I2C_DRIVERID_VIDEODECODER:
DEBUG(printk(CARD_INFO "decoder attached\n",CARD));
/* fetch the capabilities of the decoder */
rv = i2c_control_device(&ztv->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_GET_CAPABILITIES, &dc);
if (rv) {
DEBUG(printk(CARD_DEBUG "decoder is not V4L aware!\n",CARD));
break;
}
DEBUG(printk(CARD_DEBUG "capabilities %d %d %d\n",CARD,dc.flags,dc.inputs,dc.outputs));
/* Test if the decoder can de VBI transfers */
if (dc.flags & 16 /*VIDEO_DECODER_VBI*/)
ztv->have_decoder = 2;
else
ztv->have_decoder = 1;
break;
case I2C_DRIVERID_TUNER:
ztv->have_tuner = 1;
DEBUG(printk(CARD_INFO "tuner attached\n",CARD));
if (ztv->tuner_type >= 0)
{
if (i2c_control_device(&ztv->i2c,I2C_DRIVERID_TUNER,TUNER_SET_TYPE,&ztv->tuner_type)<0)
DEBUG(printk(CARD_INFO "attach_inform; tuner won't be set to type %d\n",CARD,ztv->tuner_type));
}
break;
default:
DEBUG(printk(CARD_INFO "attach_inform; unknown device id=%d\n",CARD,id));
break;
}
}
static
void detach_inform(struct i2c_bus *bus, int id)
{
struct zoran *ztv = (struct zoran*)bus->data;
switch (id) {
case I2C_DRIVERID_VIDEODECODER:
ztv->have_decoder = 0;
DEBUG(printk(CARD_INFO "decoder detached\n",CARD));
break;
case I2C_DRIVERID_TUNER:
ztv->have_tuner = 0;
DEBUG(printk(CARD_INFO "tuner detached\n",CARD));
break;
default:
DEBUG(printk(CARD_INFO "detach_inform; unknown device id=%d\n",CARD,id));
break;
}
}
struct i2c_bus zoran_i2c_bus_template =
{
"ZR36120",
I2C_BUSID_ZORAN,
NULL,
SPIN_LOCK_UNLOCKED,
attach_inform,
detach_inform,
i2c_setlines,
i2c_getdataline,
NULL,
NULL
};
drivers/media/video/zr36120_mem.c deleted 100644 → 0
View file @ d0d30c03
/*
zr36120_mem.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/mm.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <asm/io.h>
#ifdef CONFIG_BIGPHYS_AREA
#include <linux/bigphysarea.h>
#endif
#include "zr36120.h"
#include "zr36120_mem.h"
/*******************************/
/* Memory management functions */
/*******************************/
void* bmalloc(unsigned long size)
{
void* mem;
#ifdef CONFIG_BIGPHYS_AREA
mem = bigphysarea_alloc_pages(size/PAGE_SIZE, 1, GFP_KERNEL);
#else
/*
* The following function got a lot of memory at boottime,
* so we know its always there...
*/
mem = (void*)__get_free_pages(GFP_USER|GFP_DMA,get_order(size));
#endif
if (mem) {
unsigned long adr = (unsigned long)mem;
while (size > 0) {
SetPageReserved(virt_to_page(phys_to_virt(adr)));
adr += PAGE_SIZE;
size -= PAGE_SIZE;
}
}
return mem;
}
void bfree(void* mem, unsigned long size)
{
if (mem) {
unsigned long adr = (unsigned long)mem;
unsigned long siz = size;
while (siz > 0) {
ClearPageReserved(virt_to_page(phys_to_virt(adr)));
adr += PAGE_SIZE;
siz -= PAGE_SIZE;
}
#ifdef CONFIG_BIGPHYS_AREA
bigphysarea_free_pages(mem);
#else
free_pages((unsigned long)mem,get_order(size));
#endif
}
}
MODULE_LICENSE("GPL");
drivers/media/video/zr36120_mem.h deleted 100644 → 0
View file @ d0d30c03
/* either kmalloc() or bigphysarea() alloced memory - continuous */
void* bmalloc(unsigned long size);
void bfree(void* mem, unsigned long size);
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