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linux/drivers/media/video/zoran_device.c
Hans Verkuil d45b9b8ab4 V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings 
Fix sparse warnings. None are serious, but cutting down on these helps find
future serious sparse warnings/errors.

Redid the av7710.c patch based on a suggestion by Oliver Endriss.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-12 09:36:58 -02:00

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/*
* Zoran zr36057/zr36067 PCI controller driver, for the
* Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
* Media Labs LML33/LML33R10.
*
* This part handles device access (PCI/I2C/codec/...)
*
* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
*
* Currently maintained by:
* Ronald Bultje <rbultje@ronald.bitfreak.net>
* Laurent Pinchart <laurent.pinchart@skynet.be>
* Mailinglist <mjpeg-users@lists.sf.net>
*
* 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/kernel.h>
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/videodev.h>
#include <linux/spinlock.h>
#include <linux/sem.h>
#include <linux/pci.h>
#include <linux/video_decoder.h>
#include <linux/video_encoder.h>
#include <linux/delay.h>
#include <linux/wait.h>
#include <asm/byteorder.h>
#include <asm/io.h>
#include "videocodec.h"
#include "zoran.h"
#include "zoran_device.h"
#include "zoran_card.h"
#define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \
ZR36057_ISR_GIRQ1 | \
ZR36057_ISR_JPEGRepIRQ )
static int lml33dpath; /* default = 0
* 1 will use digital path in capture
* mode instead of analog. It can be
* used for picture adjustments using
* tool like xawtv while watching image
* on TV monitor connected to the output.
* However, due to absence of 75 Ohm
* load on Bt819 input, there will be
* some image imperfections */
module_param(lml33dpath, bool, 0644);
MODULE_PARM_DESC(lml33dpath,
"Use digital path capture mode (on LML33 cards)");
static void
zr36057_init_vfe (struct zoran *zr);
/*
* General Purpose I/O and Guest bus access
*/
/*
* This is a bit tricky. When a board lacks a GPIO function, the corresponding
* GPIO bit number in the card_info structure is set to 0.
*/
void
GPIO (struct zoran *zr,
int bit,
unsigned int value)
{
u32 reg;
u32 mask;
/* Make sure the bit number is legal
* A bit number of -1 (lacking) gives a mask of 0,
* making it harmless */
mask = (1 << (24 + bit)) & 0xff000000;
reg = btread(ZR36057_GPPGCR1) & ~mask;
if (value) {
reg |= mask;
}
btwrite(reg, ZR36057_GPPGCR1);
udelay(1);
}
/*
* Wait til post office is no longer busy
*/
int
post_office_wait (struct zoran *zr)
{
u32 por;
// while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) {
while ((por = btread(ZR36057_POR)) & ZR36057_POR_POPen) {
/* wait for something to happen */
}
if ((por & ZR36057_POR_POTime) && !zr->card.gws_not_connected) {
/* In LML33/BUZ \GWS line is not connected, so it has always timeout set */
dprintk(1, KERN_INFO "%s: pop timeout %08x\n", ZR_DEVNAME(zr),
por);
return -1;
}
return 0;
}
int
post_office_write (struct zoran *zr,
unsigned int guest,
unsigned int reg,
unsigned int value)
{
u32 por;
por =
ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) |
((reg & 7) << 16) | (value & 0xFF);
btwrite(por, ZR36057_POR);
return post_office_wait(zr);
}
int
post_office_read (struct zoran *zr,
unsigned int guest,
unsigned int reg)
{
u32 por;
por = ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16);
btwrite(por, ZR36057_POR);
if (post_office_wait(zr) < 0) {
return -1;
}
return btread(ZR36057_POR) & 0xFF;
}
/*
* detect guests
*/
static void
dump_guests (struct zoran *zr)
{
if (zr36067_debug > 2) {
int i, guest[8];
for (i = 1; i < 8; i++) { // Don't read jpeg codec here
guest[i] = post_office_read(zr, i, 0);
}
printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
for (i = 1; i < 8; i++) {
printk(" 0x%02x", guest[i]);
}
printk("\n");
}
}
static inline unsigned long
get_time (void)
{
struct timeval tv;
do_gettimeofday(&tv);
return (1000000 * tv.tv_sec + tv.tv_usec);
}
void
detect_guest_activity (struct zoran *zr)
{
int timeout, i, j, res, guest[8], guest0[8], change[8][3];
unsigned long t0, t1;
dump_guests(zr);
printk(KERN_INFO "%s: Detecting guests activity, please wait...\n",
ZR_DEVNAME(zr));
for (i = 1; i < 8; i++) { // Don't read jpeg codec here
guest0[i] = guest[i] = post_office_read(zr, i, 0);
}
timeout = 0;
j = 0;
t0 = get_time();
while (timeout < 10000) {
udelay(10);
timeout++;
for (i = 1; (i < 8) && (j < 8); i++) {
res = post_office_read(zr, i, 0);
if (res != guest[i]) {
t1 = get_time();
change[j][0] = (t1 - t0);
t0 = t1;
change[j][1] = i;
change[j][2] = res;
j++;
guest[i] = res;
}
}
if (j >= 8)
break;
}
printk(KERN_INFO "%s: Guests:", ZR_DEVNAME(zr));
for (i = 1; i < 8; i++) {
printk(" 0x%02x", guest0[i]);
}
printk("\n");
if (j == 0) {
printk(KERN_INFO "%s: No activity detected.\n", ZR_DEVNAME(zr));
return;
}
for (i = 0; i < j; i++) {
printk(KERN_INFO "%s: %6d: %d => 0x%02x\n", ZR_DEVNAME(zr),
change[i][0], change[i][1], change[i][2]);
}
}
/*
* JPEG Codec access
*/
void
jpeg_codec_sleep (struct zoran *zr,
int sleep)
{
GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_SLEEP], !sleep);
if (!sleep) {
dprintk(3,
KERN_DEBUG
"%s: jpeg_codec_sleep() - wake GPIO=0x%08x\n",
ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
udelay(500);
} else {
dprintk(3,
KERN_DEBUG
"%s: jpeg_codec_sleep() - sleep GPIO=0x%08x\n",
ZR_DEVNAME(zr), btread(ZR36057_GPPGCR1));
udelay(2);
}
}
int
jpeg_codec_reset (struct zoran *zr)
{
/* Take the codec out of sleep */
jpeg_codec_sleep(zr, 0);
if (zr->card.gpcs[GPCS_JPEG_RESET] != 0xff) {
post_office_write(zr, zr->card.gpcs[GPCS_JPEG_RESET], 0,
0);
udelay(2);
} else {
GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 0);
udelay(2);
GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_RESET], 1);
udelay(2);
}
return 0;
}
/*
* Set the registers for the size we have specified. Don't bother
* trying to understand this without the ZR36057 manual in front of
* you [AC].
*
* PS: The manual is free for download in .pdf format from
* www.zoran.com - nicely done those folks.
*/
static void
zr36057_adjust_vfe (struct zoran *zr,
enum zoran_codec_mode mode)
{
u32 reg;
switch (mode) {
case BUZ_MODE_MOTION_DECOMPRESS:
btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
reg = btread(ZR36057_VFEHCR);
if ((reg & (1 << 10)) && zr->card.type != LML33R10) {
reg += ((1 << 10) | 1);
}
btwrite(reg, ZR36057_VFEHCR);
break;
case BUZ_MODE_MOTION_COMPRESS:
case BUZ_MODE_IDLE:
default:
if (zr->norm == VIDEO_MODE_NTSC ||
(zr->card.type == LML33R10 &&
zr->norm == VIDEO_MODE_PAL))
btand(~ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
else
btor(ZR36057_VFESPFR_ExtFl, ZR36057_VFESPFR);
reg = btread(ZR36057_VFEHCR);
if (!(reg & (1 << 10)) && zr->card.type != LML33R10) {
reg -= ((1 << 10) | 1);
}
btwrite(reg, ZR36057_VFEHCR);
break;
}
}
/*
* set geometry
*/
static void
zr36057_set_vfe (struct zoran *zr,
int video_width,
int video_height,
const struct zoran_format *format)
{
struct tvnorm *tvn;
unsigned HStart, HEnd, VStart, VEnd;
unsigned DispMode;
unsigned VidWinWid, VidWinHt;
unsigned hcrop1, hcrop2, vcrop1, vcrop2;
unsigned Wa, We, Ha, He;
unsigned X, Y, HorDcm, VerDcm;
u32 reg;
unsigned mask_line_size;
tvn = zr->timing;
Wa = tvn->Wa;
Ha = tvn->Ha;
dprintk(2, KERN_INFO "%s: set_vfe() - width = %d, height = %d\n",
ZR_DEVNAME(zr), video_width, video_height);
if (zr->norm != VIDEO_MODE_PAL &&
zr->norm != VIDEO_MODE_NTSC &&
zr->norm != VIDEO_MODE_SECAM) {
dprintk(1,
KERN_ERR "%s: set_vfe() - norm = %d not valid\n",
ZR_DEVNAME(zr), zr->norm);
return;
}
if (video_width < BUZ_MIN_WIDTH ||
video_height < BUZ_MIN_HEIGHT ||
video_width > Wa || video_height > Ha) {
dprintk(1, KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n",
ZR_DEVNAME(zr), video_width, video_height);
return;
}
/**** zr36057 ****/
/* horizontal */
VidWinWid = video_width;
X = DIV_ROUND_UP(VidWinWid * 64, tvn->Wa);
We = (VidWinWid * 64) / X;
HorDcm = 64 - X;
hcrop1 = 2 * ((tvn->Wa - We) / 4);
hcrop2 = tvn->Wa - We - hcrop1;
HStart = tvn->HStart ? tvn->HStart : 1;
/* (Ronald) Original comment:
* "| 1 Doesn't have any effect, tested on both a DC10 and a DC10+"
* this is false. It inverses chroma values on the LML33R10 (so Cr
* suddenly is shown as Cb and reverse, really cool effect if you
* want to see blue faces, not useful otherwise). So don't use |1.
* However, the DC10 has '0' as HStart, but does need |1, so we
* use a dirty check...
*/
HEnd = HStart + tvn->Wa - 1;
HStart += hcrop1;
HEnd -= hcrop2;
reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart)
| ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd);
if (zr->card.vfe_pol.hsync_pol)
reg |= ZR36057_VFEHCR_HSPol;
btwrite(reg, ZR36057_VFEHCR);
/* Vertical */
DispMode = !(video_height > BUZ_MAX_HEIGHT / 2);
VidWinHt = DispMode ? video_height : video_height / 2;
Y = DIV_ROUND_UP(VidWinHt * 64 * 2, tvn->Ha);
He = (VidWinHt * 64) / Y;
VerDcm = 64 - Y;
vcrop1 = (tvn->Ha / 2 - He) / 2;
vcrop2 = tvn->Ha / 2 - He - vcrop1;
VStart = tvn->VStart;
VEnd = VStart + tvn->Ha / 2; // - 1; FIXME SnapShot times out with -1 in 768*576 on the DC10 - LP
VStart += vcrop1;
VEnd -= vcrop2;
reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart)
| ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd);
if (zr->card.vfe_pol.vsync_pol)
reg |= ZR36057_VFEVCR_VSPol;
btwrite(reg, ZR36057_VFEVCR);
/* scaler and pixel format */
reg = 0;
reg |= (HorDcm << ZR36057_VFESPFR_HorDcm);
reg |= (VerDcm << ZR36057_VFESPFR_VerDcm);
reg |= (DispMode << ZR36057_VFESPFR_DispMode);
/* RJ: I don't know, why the following has to be the opposite
* of the corresponding ZR36060 setting, but only this way
* we get the correct colors when uncompressing to the screen */
//reg |= ZR36057_VFESPFR_VCLKPol; /**/
/* RJ: Don't know if that is needed for NTSC also */
if (zr->norm != VIDEO_MODE_NTSC)
reg |= ZR36057_VFESPFR_ExtFl; // NEEDED!!!!!!! Wolfgang
reg |= ZR36057_VFESPFR_TopField;
if (HorDcm >= 48) {
reg |= 3 << ZR36057_VFESPFR_HFilter; /* 5 tap filter */
} else if (HorDcm >= 32) {
reg |= 2 << ZR36057_VFESPFR_HFilter; /* 4 tap filter */
} else if (HorDcm >= 16) {
reg |= 1 << ZR36057_VFESPFR_HFilter; /* 3 tap filter */
}
reg |= format->vfespfr;
btwrite(reg, ZR36057_VFESPFR);
/* display configuration */
reg = (16 << ZR36057_VDCR_MinPix)
| (VidWinHt << ZR36057_VDCR_VidWinHt)
| (VidWinWid << ZR36057_VDCR_VidWinWid);
if (pci_pci_problems & PCIPCI_TRITON)
// || zr->revision < 1) // Revision 1 has also Triton support
reg &= ~ZR36057_VDCR_Triton;
else
reg |= ZR36057_VDCR_Triton;
btwrite(reg, ZR36057_VDCR);
/* (Ronald) don't write this if overlay_mask = NULL */
if (zr->overlay_mask) {
/* Write overlay clipping mask data, but don't enable overlay clipping */
/* RJ: since this makes only sense on the screen, we use
* zr->overlay_settings.width instead of video_width */
mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
reg = virt_to_bus(zr->overlay_mask);
btwrite(reg, ZR36057_MMTR);
reg = virt_to_bus(zr->overlay_mask + mask_line_size);
btwrite(reg, ZR36057_MMBR);
reg =
mask_line_size - (zr->overlay_settings.width +
31) / 32;
if (DispMode == 0)
reg += mask_line_size;
reg <<= ZR36057_OCR_MaskStride;
btwrite(reg, ZR36057_OCR);
}
zr36057_adjust_vfe(zr, zr->codec_mode);
}
/*
* Switch overlay on or off
*/
void
zr36057_overlay (struct zoran *zr,
int on)
{
u32 reg;
if (on) {
/* do the necessary settings ... */
btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */
zr36057_set_vfe(zr,
zr->overlay_settings.width,
zr->overlay_settings.height,
zr->overlay_settings.format);
/* Start and length of each line MUST be 4-byte aligned.
* This should be allready checked before the call to this routine.
* All error messages are internal driver checking only! */
/* video display top and bottom registers */
reg = (long) zr->buffer.base +
zr->overlay_settings.x *
((zr->overlay_settings.format->depth + 7) / 8) +
zr->overlay_settings.y *
zr->buffer.bytesperline;
btwrite(reg, ZR36057_VDTR);
if (reg & 3)
dprintk(1,
KERN_ERR
"%s: zr36057_overlay() - video_address not aligned\n",
ZR_DEVNAME(zr));
if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
reg += zr->buffer.bytesperline;
btwrite(reg, ZR36057_VDBR);
/* video stride, status, and frame grab register */
reg = zr->buffer.bytesperline -
zr->overlay_settings.width *
((zr->overlay_settings.format->depth + 7) / 8);
if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2)
reg += zr->buffer.bytesperline;
if (reg & 3)
dprintk(1,
KERN_ERR
"%s: zr36057_overlay() - video_stride not aligned\n",
ZR_DEVNAME(zr));
reg = (reg << ZR36057_VSSFGR_DispStride);
reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */
btwrite(reg, ZR36057_VSSFGR);
/* Set overlay clipping */
if (zr->overlay_settings.clipcount > 0)
btor(ZR36057_OCR_OvlEnable, ZR36057_OCR);
/* ... and switch it on */
btor(ZR36057_VDCR_VidEn, ZR36057_VDCR);
} else {
/* Switch it off */
btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
}
}
/*
* The overlay mask has one bit for each pixel on a scan line,
* and the maximum window size is BUZ_MAX_WIDTH * BUZ_MAX_HEIGHT pixels.
*/
void
write_overlay_mask (struct file *file,
struct video_clip *vp,
int count)
{
struct zoran_fh *fh = file->private_data;
struct zoran *zr = fh->zr;
unsigned mask_line_size = (BUZ_MAX_WIDTH + 31) / 32;
u32 *mask;
int x, y, width, height;
unsigned i, j, k;
u32 reg;
/* fill mask with one bits */
memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT);
reg = 0;
for (i = 0; i < count; ++i) {
/* pick up local copy of clip */
x = vp[i].x;
y = vp[i].y;
width = vp[i].width;
height = vp[i].height;
/* trim clips that extend beyond the window */
if (x < 0) {
width += x;
x = 0;
}
if (y < 0) {
height += y;
y = 0;
}
if (x + width > fh->overlay_settings.width) {
width = fh->overlay_settings.width - x;
}
if (y + height > fh->overlay_settings.height) {
height = fh->overlay_settings.height - y;
}
/* ignore degenerate clips */
if (height <= 0) {
continue;
}
if (width <= 0) {
continue;
}
/* apply clip for each scan line */
for (j = 0; j < height; ++j) {
/* reset bit for each pixel */
/* this can be optimized later if need be */
mask = fh->overlay_mask + (y + j) * mask_line_size;
for (k = 0; k < width; ++k) {
mask[(x + k) / 32] &=
~((u32) 1 << (x + k) % 32);
}
}
}
}
/* Enable/Disable uncompressed memory grabbing of the 36057 */
void
zr36057_set_memgrab (struct zoran *zr,
int mode)
{
if (mode) {
/* We only check SnapShot and not FrameGrab here. SnapShot==1
* means a capture is already in progress, but FrameGrab==1
* doesn't necessary mean that. It's more correct to say a 1
* to 0 transition indicates a capture completed. If a
* capture is pending when capturing is tuned off, FrameGrab
* will be stuck at 1 until capturing is turned back on.
*/
if (btread(ZR36057_VSSFGR) & ZR36057_VSSFGR_SnapShot)
dprintk(1,
KERN_WARNING
"%s: zr36057_set_memgrab(1) with SnapShot on!?\n",
ZR_DEVNAME(zr));
/* switch on VSync interrupts */
btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts
btor(zr->card.vsync_int, ZR36057_ICR); // SW
/* enable SnapShot */
btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
/* Set zr36057 video front end and enable video */
zr36057_set_vfe(zr, zr->v4l_settings.width,
zr->v4l_settings.height,
zr->v4l_settings.format);
zr->v4l_memgrab_active = 1;
} else {
/* switch off VSync interrupts */
btand(~zr->card.vsync_int, ZR36057_ICR); // SW
zr->v4l_memgrab_active = 0;
zr->v4l_grab_frame = NO_GRAB_ACTIVE;
/* reenable grabbing to screen if it was running */
if (zr->v4l_overlay_active) {
zr36057_overlay(zr, 1);
} else {
btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
btand(~ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
}
}
}
int
wait_grab_pending (struct zoran *zr)
{
unsigned long flags;
/* wait until all pending grabs are finished */
if (!zr->v4l_memgrab_active)
return 0;
wait_event_interruptible(zr->v4l_capq,
(zr->v4l_pend_tail == zr->v4l_pend_head));
if (signal_pending(current))
return -ERESTARTSYS;
spin_lock_irqsave(&zr->spinlock, flags);
zr36057_set_memgrab(zr, 0);
spin_unlock_irqrestore(&zr->spinlock, flags);
return 0;
}
/*****************************************************************************
* *
* Set up the Buz-specific MJPEG part *
* *
*****************************************************************************/
static inline void
set_frame (struct zoran *zr,
int val)
{
GPIO(zr, zr->card.gpio[ZR_GPIO_JPEG_FRAME], val);
}
static void
set_videobus_dir (struct zoran *zr,
int val)
{
switch (zr->card.type) {
case LML33:
case LML33R10:
if (lml33dpath == 0)
GPIO(zr, 5, val);
else
GPIO(zr, 5, 1);
break;
default:
GPIO(zr, zr->card.gpio[ZR_GPIO_VID_DIR],
zr->card.gpio_pol[ZR_GPIO_VID_DIR] ? !val : val);
break;
}
}
static void
init_jpeg_queue (struct zoran *zr)
{
int i;
/* re-initialize DMA ring stuff */
zr->jpg_que_head = 0;
zr->jpg_dma_head = 0;
zr->jpg_dma_tail = 0;
zr->jpg_que_tail = 0;
zr->jpg_seq_num = 0;
zr->JPEG_error = 0;
zr->num_errors = 0;
zr->jpg_err_seq = 0;
zr->jpg_err_shift = 0;
zr->jpg_queued_num = 0;
for (i = 0; i < zr->jpg_buffers.num_buffers; i++) {
zr->jpg_buffers.buffer[i].state = BUZ_STATE_USER; /* nothing going on */
}
for (i = 0; i < BUZ_NUM_STAT_COM; i++) {
zr->stat_com[i] = cpu_to_le32(1); /* mark as unavailable to zr36057 */
}
}
static void
zr36057_set_jpg (struct zoran *zr,
enum zoran_codec_mode mode)
{
struct tvnorm *tvn;
u32 reg;
tvn = zr->timing;
/* assert P_Reset, disable code transfer, deassert Active */
btwrite(0, ZR36057_JPC);
/* MJPEG compression mode */
switch (mode) {
case BUZ_MODE_MOTION_COMPRESS:
default:
reg = ZR36057_JMC_MJPGCmpMode;
break;
case BUZ_MODE_MOTION_DECOMPRESS:
reg = ZR36057_JMC_MJPGExpMode;
reg |= ZR36057_JMC_SyncMstr;
/* RJ: The following is experimental - improves the output to screen */
//if(zr->jpg_settings.VFIFO_FB) reg |= ZR36057_JMC_VFIFO_FB; // No, it doesn't. SM
break;
case BUZ_MODE_STILL_COMPRESS:
reg = ZR36057_JMC_JPGCmpMode;
break;
case BUZ_MODE_STILL_DECOMPRESS:
reg = ZR36057_JMC_JPGExpMode;
break;
}
reg |= ZR36057_JMC_JPG;
if (zr->jpg_settings.field_per_buff == 1)
reg |= ZR36057_JMC_Fld_per_buff;
btwrite(reg, ZR36057_JMC);
/* vertical */
btor(ZR36057_VFEVCR_VSPol, ZR36057_VFEVCR);
reg = (6 << ZR36057_VSP_VsyncSize) |
(tvn->Ht << ZR36057_VSP_FrmTot);
btwrite(reg, ZR36057_VSP);
reg = ((zr->jpg_settings.img_y + tvn->VStart) << ZR36057_FVAP_NAY) |
(zr->jpg_settings.img_height << ZR36057_FVAP_PAY);
btwrite(reg, ZR36057_FVAP);
/* horizontal */
if (zr->card.vfe_pol.hsync_pol)
btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
else
btand(~ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
reg = ((tvn->HSyncStart) << ZR36057_HSP_HsyncStart) |
(tvn->Wt << ZR36057_HSP_LineTot);
btwrite(reg, ZR36057_HSP);
reg = ((zr->jpg_settings.img_x +
tvn->HStart + 4) << ZR36057_FHAP_NAX) |
(zr->jpg_settings.img_width << ZR36057_FHAP_PAX);
btwrite(reg, ZR36057_FHAP);
/* field process parameters */
if (zr->jpg_settings.odd_even)
reg = ZR36057_FPP_Odd_Even;
else
reg = 0;
btwrite(reg, ZR36057_FPP);
/* Set proper VCLK Polarity, else colors will be wrong during playback */
//btor(ZR36057_VFESPFR_VCLKPol, ZR36057_VFESPFR);
/* code base address */
reg = virt_to_bus(zr->stat_com);
btwrite(reg, ZR36057_JCBA);
/* FIFO threshold (FIFO is 160. double words) */
/* NOTE: decimal values here */
switch (mode) {
case BUZ_MODE_STILL_COMPRESS:
case BUZ_MODE_MOTION_COMPRESS:
if (zr->card.type != BUZ)
reg = 140;
else
reg = 60;
break;
case BUZ_MODE_STILL_DECOMPRESS:
case BUZ_MODE_MOTION_DECOMPRESS:
reg = 20;
break;
default:
reg = 80;
break;
}
btwrite(reg, ZR36057_JCFT);
zr36057_adjust_vfe(zr, mode);
}
void
print_interrupts (struct zoran *zr)
{
int res, noerr = 0;
printk(KERN_INFO "%s: interrupts received:", ZR_DEVNAME(zr));
if ((res = zr->field_counter) < -1 || res > 1) {
printk(" FD:%d", res);
}
if ((res = zr->intr_counter_GIRQ1) != 0) {
printk(" GIRQ1:%d", res);
noerr++;
}
if ((res = zr->intr_counter_GIRQ0) != 0) {
printk(" GIRQ0:%d", res);
noerr++;
}
if ((res = zr->intr_counter_CodRepIRQ) != 0) {
printk(" CodRepIRQ:%d", res);
noerr++;
}
if ((res = zr->intr_counter_JPEGRepIRQ) != 0) {
printk(" JPEGRepIRQ:%d", res);
noerr++;
}
if (zr->JPEG_max_missed) {
printk(" JPEG delays: max=%d min=%d", zr->JPEG_max_missed,
zr->JPEG_min_missed);
}
if (zr->END_event_missed) {
printk(" ENDs missed: %d", zr->END_event_missed);
}
//if (zr->jpg_queued_num) {
printk(" queue_state=%ld/%ld/%ld/%ld", zr->jpg_que_tail,
zr->jpg_dma_tail, zr->jpg_dma_head, zr->jpg_que_head);
//}
if (!noerr) {
printk(": no interrupts detected.");
}
printk("\n");
}
void
clear_interrupt_counters (struct zoran *zr)
{
zr->intr_counter_GIRQ1 = 0;
zr->intr_counter_GIRQ0 = 0;
zr->intr_counter_CodRepIRQ = 0;
zr->intr_counter_JPEGRepIRQ = 0;
zr->field_counter = 0;
zr->IRQ1_in = 0;
zr->IRQ1_out = 0;
zr->JPEG_in = 0;
zr->JPEG_out = 0;
zr->JPEG_0 = 0;
zr->JPEG_1 = 0;
zr->END_event_missed = 0;
zr->JPEG_missed = 0;
zr->JPEG_max_missed = 0;
zr->JPEG_min_missed = 0x7fffffff;
}
static u32
count_reset_interrupt (struct zoran *zr)
{
u32 isr;
if ((isr = btread(ZR36057_ISR) & 0x78000000)) {
if (isr & ZR36057_ISR_GIRQ1) {
btwrite(ZR36057_ISR_GIRQ1, ZR36057_ISR);
zr->intr_counter_GIRQ1++;
}
if (isr & ZR36057_ISR_GIRQ0) {
btwrite(ZR36057_ISR_GIRQ0, ZR36057_ISR);
zr->intr_counter_GIRQ0++;
}
if (isr & ZR36057_ISR_CodRepIRQ) {
btwrite(ZR36057_ISR_CodRepIRQ, ZR36057_ISR);
zr->intr_counter_CodRepIRQ++;
}
if (isr & ZR36057_ISR_JPEGRepIRQ) {
btwrite(ZR36057_ISR_JPEGRepIRQ, ZR36057_ISR);
zr->intr_counter_JPEGRepIRQ++;
}
}
return isr;
}
void
jpeg_start (struct zoran *zr)
{
int reg;
zr->frame_num = 0;
/* deassert P_reset, disable code transfer, deassert Active */
btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC);
/* stop flushing the internal code buffer */
btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
/* enable code transfer */
btor(ZR36057_JPC_CodTrnsEn, ZR36057_JPC);
/* clear IRQs */
btwrite(IRQ_MASK, ZR36057_ISR);
/* enable the JPEG IRQs */
btwrite(zr->card.jpeg_int |
ZR36057_ICR_JPEGRepIRQ |
ZR36057_ICR_IntPinEn,
ZR36057_ICR);
set_frame(zr, 0); // \FRAME
/* set the JPEG codec guest ID */
reg = (zr->card.gpcs[1] << ZR36057_JCGI_JPEGuestID) |
(0 << ZR36057_JCGI_JPEGuestReg);
btwrite(reg, ZR36057_JCGI);
if (zr->card.video_vfe == CODEC_TYPE_ZR36016 &&
zr->card.video_codec == CODEC_TYPE_ZR36050) {
/* Enable processing on the ZR36016 */
if (zr->vfe)
zr36016_write(zr->vfe, 0, 1);
/* load the address of the GO register in the ZR36050 latch */
post_office_write(zr, 0, 0, 0);
}
/* assert Active */
btor(ZR36057_JPC_Active, ZR36057_JPC);
/* enable the Go generation */
btor(ZR36057_JMC_Go_en, ZR36057_JMC);
udelay(30);
set_frame(zr, 1); // /FRAME
dprintk(3, KERN_DEBUG "%s: jpeg_start\n", ZR_DEVNAME(zr));
}
void
zr36057_enable_jpg (struct zoran *zr,
enum zoran_codec_mode mode)
{
static int zero;
static int one = 1;
struct vfe_settings cap;
int field_size =
zr->jpg_buffers.buffer_size / zr->jpg_settings.field_per_buff;
zr->codec_mode = mode;
cap.x = zr->jpg_settings.img_x;
cap.y = zr->jpg_settings.img_y;
cap.width = zr->jpg_settings.img_width;
cap.height = zr->jpg_settings.img_height;
cap.decimation =
zr->jpg_settings.HorDcm | (zr->jpg_settings.VerDcm << 8);
cap.quality = zr->jpg_settings.jpg_comp.quality;
switch (mode) {
case BUZ_MODE_MOTION_COMPRESS: {
struct jpeg_app_marker app;
struct jpeg_com_marker com;
/* In motion compress mode, the decoder output must be enabled, and
* the video bus direction set to input.
*/
set_videobus_dir(zr, 0);
decoder_command(zr, DECODER_ENABLE_OUTPUT, &one);
encoder_command(zr, ENCODER_SET_INPUT, &zero);
/* Take the JPEG codec and the VFE out of sleep */
jpeg_codec_sleep(zr, 0);
/* set JPEG app/com marker */
app.appn = zr->jpg_settings.jpg_comp.APPn;
app.len = zr->jpg_settings.jpg_comp.APP_len;
memcpy(app.data, zr->jpg_settings.jpg_comp.APP_data, 60);
zr->codec->control(zr->codec, CODEC_S_JPEG_APP_DATA,
sizeof(struct jpeg_app_marker), &app);
com.len = zr->jpg_settings.jpg_comp.COM_len;
memcpy(com.data, zr->jpg_settings.jpg_comp.COM_data, 60);
zr->codec->control(zr->codec, CODEC_S_JPEG_COM_DATA,
sizeof(struct jpeg_com_marker), &com);
/* Setup the JPEG codec */
zr->codec->control(zr->codec, CODEC_S_JPEG_TDS_BYTE,
sizeof(int), &field_size);
zr->codec->set_video(zr->codec, zr->timing, &cap,
&zr->card.vfe_pol);
zr->codec->set_mode(zr->codec, CODEC_DO_COMPRESSION);
/* Setup the VFE */
if (zr->vfe) {
zr->vfe->control(zr->vfe, CODEC_S_JPEG_TDS_BYTE,
sizeof(int), &field_size);
zr->vfe->set_video(zr->vfe, zr->timing, &cap,
&zr->card.vfe_pol);
zr->vfe->set_mode(zr->vfe, CODEC_DO_COMPRESSION);
}
init_jpeg_queue(zr);
zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
clear_interrupt_counters(zr);
dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_COMPRESS)\n",
ZR_DEVNAME(zr));
break;
}
case BUZ_MODE_MOTION_DECOMPRESS:
/* In motion decompression mode, the decoder output must be disabled, and
* the video bus direction set to output.
*/
decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
set_videobus_dir(zr, 1);
encoder_command(zr, ENCODER_SET_INPUT, &one);
/* Take the JPEG codec and the VFE out of sleep */
jpeg_codec_sleep(zr, 0);
/* Setup the VFE */
if (zr->vfe) {
zr->vfe->set_video(zr->vfe, zr->timing, &cap,
&zr->card.vfe_pol);
zr->vfe->set_mode(zr->vfe, CODEC_DO_EXPANSION);
}
/* Setup the JPEG codec */
zr->codec->set_video(zr->codec, zr->timing, &cap,
&zr->card.vfe_pol);
zr->codec->set_mode(zr->codec, CODEC_DO_EXPANSION);
init_jpeg_queue(zr);
zr36057_set_jpg(zr, mode); // \P_Reset, ... Video param, FIFO
clear_interrupt_counters(zr);
dprintk(2, KERN_INFO "%s: enable_jpg(MOTION_DECOMPRESS)\n",
ZR_DEVNAME(zr));
break;
case BUZ_MODE_IDLE:
default:
/* shut down processing */
btand(~(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ),
ZR36057_ICR);
btwrite(zr->card.jpeg_int | ZR36057_ICR_JPEGRepIRQ,
ZR36057_ISR);
btand(~ZR36057_JMC_Go_en, ZR36057_JMC); // \Go_en
msleep(50);
set_videobus_dir(zr, 0);
set_frame(zr, 1); // /FRAME
btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR); // /CFlush
btwrite(0, ZR36057_JPC); // \P_Reset,\CodTrnsEn,\Active
btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC);
btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC);
jpeg_codec_reset(zr);
jpeg_codec_sleep(zr, 1);
zr36057_adjust_vfe(zr, mode);
decoder_command(zr, DECODER_ENABLE_OUTPUT, &one);
encoder_command(zr, ENCODER_SET_INPUT, &zero);
dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr));
break;
}
}
/* when this is called the spinlock must be held */
void
zoran_feed_stat_com (struct zoran *zr)
{
/* move frames from pending queue to DMA */
int frame, i, max_stat_com;
max_stat_com =
(zr->jpg_settings.TmpDcm ==
1) ? BUZ_NUM_STAT_COM : (BUZ_NUM_STAT_COM >> 1);
while ((zr->jpg_dma_head - zr->jpg_dma_tail) < max_stat_com &&
zr->jpg_dma_head < zr->jpg_que_head) {
frame = zr->jpg_pend[zr->jpg_dma_head & BUZ_MASK_FRAME];
if (zr->jpg_settings.TmpDcm == 1) {
/* fill 1 stat_com entry */
i = (zr->jpg_dma_head -
zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
if (!(zr->stat_com[i] & cpu_to_le32(1)))
break;
zr->stat_com[i] =
cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus);
} else {
/* fill 2 stat_com entries */
i = ((zr->jpg_dma_head -
zr->jpg_err_shift) & 1) * 2;
if (!(zr->stat_com[i] & cpu_to_le32(1)))
break;
zr->stat_com[i] =
cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus);
zr->stat_com[i + 1] =
cpu_to_le32(zr->jpg_buffers.buffer[frame].frag_tab_bus);
}
zr->jpg_buffers.buffer[frame].state = BUZ_STATE_DMA;
zr->jpg_dma_head++;
}
if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS)
zr->jpg_queued_num++;
}
/* when this is called the spinlock must be held */
static void
zoran_reap_stat_com (struct zoran *zr)
{
/* move frames from DMA queue to done queue */
int i;
u32 stat_com;
unsigned int seq;
unsigned int dif;
struct zoran_jpg_buffer *buffer;
int frame;
/* In motion decompress we don't have a hardware frame counter,
* we just count the interrupts here */
if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
zr->jpg_seq_num++;
}
while (zr->jpg_dma_tail < zr->jpg_dma_head) {
if (zr->jpg_settings.TmpDcm == 1)
i = (zr->jpg_dma_tail -
zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
else
i = ((zr->jpg_dma_tail -
zr->jpg_err_shift) & 1) * 2 + 1;
stat_com = le32_to_cpu(zr->stat_com[i]);
if ((stat_com & 1) == 0) {
return;
}
frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
buffer = &zr->jpg_buffers.buffer[frame];
do_gettimeofday(&buffer->bs.timestamp);
if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
buffer->bs.length = (stat_com & 0x7fffff) >> 1;
/* update sequence number with the help of the counter in stat_com */
seq = ((stat_com >> 24) + zr->jpg_err_seq) & 0xff;
dif = (seq - zr->jpg_seq_num) & 0xff;
zr->jpg_seq_num += dif;
} else {
buffer->bs.length = 0;
}
buffer->bs.seq =
zr->jpg_settings.TmpDcm ==
2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num;
buffer->state = BUZ_STATE_DONE;
zr->jpg_dma_tail++;
}
}
static void
error_handler (struct zoran *zr,
u32 astat,
u32 stat)
{
/* This is JPEG error handling part */
if ((zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) &&
(zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS)) {
//dprintk(1, KERN_ERR "%s: Internal error: error handling request in mode %d\n", ZR_DEVNAME(zr), zr->codec_mode);
return;
}
if ((stat & 1) == 0 &&
zr->codec_mode == BUZ_MODE_MOTION_COMPRESS &&
zr->jpg_dma_tail - zr->jpg_que_tail >=
zr->jpg_buffers.num_buffers) {
/* No free buffers... */
zoran_reap_stat_com(zr);
zoran_feed_stat_com(zr);
wake_up_interruptible(&zr->jpg_capq);
zr->JPEG_missed = 0;
return;
}
if (zr->JPEG_error != 1) {
/*
* First entry: error just happened during normal operation
*
* In BUZ_MODE_MOTION_COMPRESS:
*
* Possible glitch in TV signal. In this case we should
* stop the codec and wait for good quality signal before
* restarting it to avoid further problems
*
* In BUZ_MODE_MOTION_DECOMPRESS:
*
* Bad JPEG frame: we have to mark it as processed (codec crashed
* and was not able to do it itself), and to remove it from queue.
*/
btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
udelay(1);
stat = stat | (post_office_read(zr, 7, 0) & 3) << 8;
btwrite(0, ZR36057_JPC);
btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
jpeg_codec_reset(zr);
jpeg_codec_sleep(zr, 1);
zr->JPEG_error = 1;
zr->num_errors++;
/* Report error */
if (zr36067_debug > 1 && zr->num_errors <= 8) {
long frame;
frame =
zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
printk(KERN_ERR
"%s: JPEG error stat=0x%08x(0x%08x) queue_state=%ld/%ld/%ld/%ld seq=%ld frame=%ld. Codec stopped. ",
ZR_DEVNAME(zr), stat, zr->last_isr,
zr->jpg_que_tail, zr->jpg_dma_tail,
zr->jpg_dma_head, zr->jpg_que_head,
zr->jpg_seq_num, frame);
printk("stat_com frames:");
{
int i, j;
for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
for (i = 0;
i < zr->jpg_buffers.num_buffers;
i++) {
if (le32_to_cpu(zr->stat_com[j]) ==
zr->jpg_buffers.
buffer[i].
frag_tab_bus) {
printk("% d->%d",
j, i);
}
}
}
printk("\n");
}
}
/* Find an entry in stat_com and rotate contents */
{
int i;
if (zr->jpg_settings.TmpDcm == 1)
i = (zr->jpg_dma_tail -
zr->jpg_err_shift) & BUZ_MASK_STAT_COM;
else
i = ((zr->jpg_dma_tail -
zr->jpg_err_shift) & 1) * 2;
if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) {
/* Mimic zr36067 operation */
zr->stat_com[i] |= cpu_to_le32(1);
if (zr->jpg_settings.TmpDcm != 1)
zr->stat_com[i + 1] |= cpu_to_le32(1);
/* Refill */
zoran_reap_stat_com(zr);
zoran_feed_stat_com(zr);
wake_up_interruptible(&zr->jpg_capq);
/* Find an entry in stat_com again after refill */
if (zr->jpg_settings.TmpDcm == 1)
i = (zr->jpg_dma_tail -
zr->jpg_err_shift) &
BUZ_MASK_STAT_COM;
else
i = ((zr->jpg_dma_tail -
zr->jpg_err_shift) & 1) * 2;
}
if (i) {
/* Rotate stat_comm entries to make current entry first */
int j;
__le32 bus_addr[BUZ_NUM_STAT_COM];
/* Here we are copying the stat_com array, which
* is already in little endian format, so
* no endian conversions here
*/
memcpy(bus_addr, zr->stat_com,
sizeof(bus_addr));
for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
zr->stat_com[j] =
bus_addr[(i + j) &
BUZ_MASK_STAT_COM];
}
zr->jpg_err_shift += i;
zr->jpg_err_shift &= BUZ_MASK_STAT_COM;
}
if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)
zr->jpg_err_seq = zr->jpg_seq_num; /* + 1; */
}
}
/* Now the stat_comm buffer is ready for restart */
do {
int status, mode;
if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
decoder_command(zr, DECODER_GET_STATUS, &status);
mode = CODEC_DO_COMPRESSION;
} else {
status = 0;
mode = CODEC_DO_EXPANSION;
}
if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
(status & DECODER_STATUS_GOOD)) {
/********** RESTART code *************/
jpeg_codec_reset(zr);
zr->codec->set_mode(zr->codec, mode);
zr36057_set_jpg(zr, zr->codec_mode);
jpeg_start(zr);
if (zr->num_errors <= 8)
dprintk(2, KERN_INFO "%s: Restart\n",
ZR_DEVNAME(zr));
zr->JPEG_missed = 0;
zr->JPEG_error = 2;
/********** End RESTART code ***********/
}
} while (0);
}
irqreturn_t
zoran_irq (int irq,
void *dev_id)
{
u32 stat, astat;
int count;
struct zoran *zr;
unsigned long flags;
zr = dev_id;
count = 0;
if (zr->testing) {
/* Testing interrupts */
spin_lock_irqsave(&zr->spinlock, flags);
while ((stat = count_reset_interrupt(zr))) {
if (count++ > 100) {
btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
dprintk(1,
KERN_ERR
"%s: IRQ lockup while testing, isr=0x%08x, cleared int mask\n",
ZR_DEVNAME(zr), stat);
wake_up_interruptible(&zr->test_q);
}
}
zr->last_isr = stat;
spin_unlock_irqrestore(&zr->spinlock, flags);
return IRQ_HANDLED;
}
spin_lock_irqsave(&zr->spinlock, flags);
while (1) {
/* get/clear interrupt status bits */
stat = count_reset_interrupt(zr);
astat = stat & IRQ_MASK;
if (!astat) {
break;
}
dprintk(4,
KERN_DEBUG
"zoran_irq: astat: 0x%08x, mask: 0x%08x\n",
astat, btread(ZR36057_ICR));
if (astat & zr->card.vsync_int) { // SW
if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
/* count missed interrupts */
zr->JPEG_missed++;
}
//post_office_read(zr,1,0);
/* Interrupts may still happen when
* zr->v4l_memgrab_active is switched off.
* We simply ignore them */
if (zr->v4l_memgrab_active) {
/* A lot more checks should be here ... */
if ((btread(ZR36057_VSSFGR) &
ZR36057_VSSFGR_SnapShot) == 0)
dprintk(1,
KERN_WARNING
"%s: BuzIRQ with SnapShot off ???\n",
ZR_DEVNAME(zr));
if (zr->v4l_grab_frame != NO_GRAB_ACTIVE) {
/* There is a grab on a frame going on, check if it has finished */
if ((btread(ZR36057_VSSFGR) &
ZR36057_VSSFGR_FrameGrab) ==
0) {
/* it is finished, notify the user */
zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE;
zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq;
do_gettimeofday(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp);
zr->v4l_grab_frame = NO_GRAB_ACTIVE;
zr->v4l_pend_tail++;
}
}
if (zr->v4l_grab_frame == NO_GRAB_ACTIVE)
wake_up_interruptible(&zr->v4l_capq);
/* Check if there is another grab queued */
if (zr->v4l_grab_frame == NO_GRAB_ACTIVE &&
zr->v4l_pend_tail != zr->v4l_pend_head) {
int frame = zr->v4l_pend[zr->v4l_pend_tail &
V4L_MASK_FRAME];
u32 reg;
zr->v4l_grab_frame = frame;
/* Set zr36057 video front end and enable video */
/* Buffer address */
reg =
zr->v4l_buffers.buffer[frame].
fbuffer_bus;
btwrite(reg, ZR36057_VDTR);
if (zr->v4l_settings.height >
BUZ_MAX_HEIGHT / 2)
reg +=
zr->v4l_settings.
bytesperline;
btwrite(reg, ZR36057_VDBR);
/* video stride, status, and frame grab register */
reg = 0;
if (zr->v4l_settings.height >
BUZ_MAX_HEIGHT / 2)
reg +=
zr->v4l_settings.
bytesperline;
reg =
(reg <<
ZR36057_VSSFGR_DispStride);
reg |= ZR36057_VSSFGR_VidOvf;
reg |= ZR36057_VSSFGR_SnapShot;
reg |= ZR36057_VSSFGR_FrameGrab;
btwrite(reg, ZR36057_VSSFGR);
btor(ZR36057_VDCR_VidEn,
ZR36057_VDCR);
}
}
/* even if we don't grab, we do want to increment
* the sequence counter to see lost frames */
zr->v4l_grab_seq++;
}
#if (IRQ_MASK & ZR36057_ISR_CodRepIRQ)
if (astat & ZR36057_ISR_CodRepIRQ) {
zr->intr_counter_CodRepIRQ++;
IDEBUG(printk
(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n",
ZR_DEVNAME(zr)));
btand(~ZR36057_ICR_CodRepIRQ, ZR36057_ICR);
}
#endif /* (IRQ_MASK & ZR36057_ISR_CodRepIRQ) */
#if (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ)
if (astat & ZR36057_ISR_JPEGRepIRQ) {
if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS ||
zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
if (zr36067_debug > 1 &&
(!zr->frame_num || zr->JPEG_error)) {
printk(KERN_INFO
"%s: first frame ready: state=0x%08x odd_even=%d field_per_buff=%d delay=%d\n",
ZR_DEVNAME(zr), stat,
zr->jpg_settings.odd_even,
zr->jpg_settings.
field_per_buff,
zr->JPEG_missed);
{
char sc[] = "0000";
char sv[5];
int i;
strcpy(sv, sc);
for (i = 0; i < 4; i++) {
if (le32_to_cpu(zr->stat_com[i]) & 1)
sv[i] = '1';
}
sv[4] = 0;
printk(KERN_INFO
"%s: stat_com=%s queue_state=%ld/%ld/%ld/%ld\n",
ZR_DEVNAME(zr), sv,
zr->jpg_que_tail,
zr->jpg_dma_tail,
zr->jpg_dma_head,
zr->jpg_que_head);
}
} else {
if (zr->JPEG_missed > zr->JPEG_max_missed) // Get statistics
zr->JPEG_max_missed =
zr->JPEG_missed;
if (zr->JPEG_missed <
zr->JPEG_min_missed)
zr->JPEG_min_missed =
zr->JPEG_missed;
}
if (zr36067_debug > 2 && zr->frame_num < 6) {
int i;
printk("%s: seq=%ld stat_com:",
ZR_DEVNAME(zr), zr->jpg_seq_num);
for (i = 0; i < 4; i++) {
printk(" %08x",
le32_to_cpu(zr->stat_com[i]));
}
printk("\n");
}
zr->frame_num++;
zr->JPEG_missed = 0;
zr->JPEG_error = 0;
zoran_reap_stat_com(zr);
zoran_feed_stat_com(zr);
wake_up_interruptible(&zr->jpg_capq);
} /*else {
dprintk(1,
KERN_ERR
"%s: JPEG interrupt while not in motion (de)compress mode!\n",
ZR_DEVNAME(zr));
}*/
}
#endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */
/* DATERR, too many fields missed, error processing */
if ((astat & zr->card.jpeg_int) ||
zr->JPEG_missed > 25 ||
zr->JPEG_error == 1 ||
((zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS) &&
(zr->frame_num & (zr->JPEG_missed >
zr->jpg_settings.field_per_buff)))) {
error_handler(zr, astat, stat);
}
count++;
if (count > 10) {
dprintk(2, KERN_WARNING "%s: irq loop %d\n",
ZR_DEVNAME(zr), count);
if (count > 20) {
btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
dprintk(2,
KERN_ERR
"%s: IRQ lockup, cleared int mask\n",
ZR_DEVNAME(zr));
break;
}
}
zr->last_isr = stat;
}
spin_unlock_irqrestore(&zr->spinlock, flags);
return IRQ_HANDLED;
}
void
zoran_set_pci_master (struct zoran *zr,
int set_master)
{
if (set_master) {
pci_set_master(zr->pci_dev);
} else {
u16 command;
pci_read_config_word(zr->pci_dev, PCI_COMMAND, &command);
command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(zr->pci_dev, PCI_COMMAND, command);
}
}
void
zoran_init_hardware (struct zoran *zr)
{
int j, zero = 0;
/* Enable bus-mastering */
zoran_set_pci_master(zr, 1);
/* Initialize the board */
if (zr->card.init) {
zr->card.init(zr);
}
j = zr->card.input[zr->input].muxsel;
decoder_command(zr, 0, NULL);
decoder_command(zr, DECODER_SET_NORM, &zr->norm);
decoder_command(zr, DECODER_SET_INPUT, &j);
encoder_command(zr, 0, NULL);
encoder_command(zr, ENCODER_SET_NORM, &zr->norm);
encoder_command(zr, ENCODER_SET_INPUT, &zero);
/* toggle JPEG codec sleep to sync PLL */
jpeg_codec_sleep(zr, 1);
jpeg_codec_sleep(zr, 0);
/* set individual interrupt enables (without GIRQ1)
* but don't global enable until zoran_open() */
//btwrite(IRQ_MASK & ~ZR36057_ISR_GIRQ1, ZR36057_ICR); // SW
// It looks like using only JPEGRepIRQEn is not always reliable,
// may be when JPEG codec crashes it won't generate IRQ? So,
/*CP*/ // btwrite(IRQ_MASK, ZR36057_ICR); // Enable Vsync interrupts too. SM WHY ? LP
zr36057_init_vfe(zr);
zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts
}
void
zr36057_restart (struct zoran *zr)
{
btwrite(0, ZR36057_SPGPPCR);
mdelay(1);
btor(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR);
mdelay(1);
/* assert P_Reset */
btwrite(0, ZR36057_JPC);
/* set up GPIO direction - all output */
btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR);
/* set up GPIO pins and guest bus timing */
btwrite((0x81 << 24) | 0x8888, ZR36057_GPPGCR1);
}
/*
* initialize video front end
*/
static void
zr36057_init_vfe (struct zoran *zr)
{
u32 reg;
reg = btread(ZR36057_VFESPFR);
reg |= ZR36057_VFESPFR_LittleEndian;
reg &= ~ZR36057_VFESPFR_VCLKPol;
reg |= ZR36057_VFESPFR_ExtFl;
reg |= ZR36057_VFESPFR_TopField;
btwrite(reg, ZR36057_VFESPFR);
reg = btread(ZR36057_VDCR);
if (pci_pci_problems & PCIPCI_TRITON)
// || zr->revision < 1) // Revision 1 has also Triton support
reg &= ~ZR36057_VDCR_Triton;
else
reg |= ZR36057_VDCR_Triton;
btwrite(reg, ZR36057_VDCR);
}
/*
* Interface to decoder and encoder chips using i2c bus
*/
int
decoder_command (struct zoran *zr,
int cmd,
void *data)
{
if (zr->decoder == NULL)
return -EIO;
if (zr->card.type == LML33 &&
(cmd == DECODER_SET_NORM || cmd == DECODER_SET_INPUT)) {
int res;
// Bt819 needs to reset its FIFO buffer using #FRST pin and
// LML33 card uses GPIO(7) for that.
GPIO(zr, 7, 0);
res = zr->decoder->driver->command(zr->decoder, cmd, data);
// Pull #FRST high.
GPIO(zr, 7, 1);
return res;
} else
return zr->decoder->driver->command(zr->decoder, cmd,
data);
}
int
encoder_command (struct zoran *zr,
int cmd,
void *data)
{
if (zr->encoder == NULL)
return -1;
return zr->encoder->driver->command(zr->encoder, cmd, data);
}
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