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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/video/zoran_device.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/media/video/zoran_device.c')
-rw-r--r--drivers/media/video/zoran_device.c1785
1 files changed, 1785 insertions, 0 deletions
diff --git a/drivers/media/video/zoran_device.c b/drivers/media/video/zoran_device.c
new file mode 100644
index 000000000000..4e15afdec4c9
--- /dev/null
+++ b/drivers/media/video/zoran_device.c
@@ -0,0 +1,1785 @@
+/*
+ * 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/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+#include <linux/byteorder/generic.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/io.h>
+
+#include "videocodec.h"
+#include "zoran.h"
+#include "zoran_device.h"
+
+#define IRQ_MASK ( ZR36057_ISR_GIRQ0 | \
+ ZR36057_ISR_GIRQ1 | \
+ ZR36057_ISR_JPEGRepIRQ )
+
+extern const struct zoran_format zoran_formats[];
+
+extern int *zr_debug;
+
+#define dprintk(num, format, args...) \
+ do { \
+ if (*zr_debug >= num) \
+ printk(format, ##args); \
+ } while (0)
+
+static int lml33dpath = 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, 0);
+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 (*zr_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[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[GPIO_JPEG_RESET], 0);
+ udelay(2);
+ GPIO(zr, zr->card.gpio[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 = (VidWinWid * 64 + tvn->Wa - 1) / 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 = (VidWinHt * 64 * 2 + tvn->Ha - 1) / 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);
+ if (format->palette != VIDEO_PALETTE_YUV422)
+ reg |= ZR36057_VFESPFR_LittleEndian;
+ /* 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;
+ switch (format->palette) {
+
+ case VIDEO_PALETTE_YUV422:
+ reg |= ZR36057_VFESPFR_YUV422;
+ break;
+
+ case VIDEO_PALETTE_RGB555:
+ reg |= ZR36057_VFESPFR_RGB555 | ZR36057_VFESPFR_ErrDif;
+ break;
+
+ case VIDEO_PALETTE_RGB565:
+ reg |= ZR36057_VFESPFR_RGB565 | ZR36057_VFESPFR_ErrDif;
+ break;
+
+ case VIDEO_PALETTE_RGB24:
+ reg |= ZR36057_VFESPFR_RGB888 | ZR36057_VFESPFR_Pack24;
+ break;
+
+ case VIDEO_PALETTE_RGB32:
+ reg |= ZR36057_VFESPFR_RGB888;
+ break;
+
+ default:
+ dprintk(1,
+ KERN_INFO "%s: set_vfe() - unknown color_fmt=%x\n",
+ ZR_DEVNAME(zr), format->palette);
+ return;
+
+ }
+ 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 */
+ }
+ 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 = (u32) 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) {
+ if (btread(ZR36057_VSSFGR) &
+ (ZR36057_VSSFGR_SnapShot | ZR36057_VSSFGR_FrameGrab))
+ dprintk(1,
+ KERN_WARNING
+ "%s: zr36057_set_memgrab(1) with SnapShot or FrameGrab 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 {
+ zr->v4l_memgrab_active = 0;
+
+ /* switch off VSync interrupts */
+ btand(~zr->card.vsync_int, ZR36057_ICR); // SW
+
+ /* 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[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[GPIO_VID_DIR],
+ zr->card.gpio_pol[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;
+}
+
+/* hack */
+extern void zr36016_write (struct videocodec *codec,
+ u16 reg,
+ u32 val);
+
+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 = 0;
+ 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 (*zr_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;
+ u32 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,
+ struct pt_regs *regs)
+{
+ u32 stat, astat;
+ int count;
+ struct zoran *zr;
+ unsigned long flags;
+
+ zr = (struct zoran *) 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 (*zr_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 (*zr_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 || 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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