/* * 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/videodev2.h> #include <media/v4l2-common.h> #include <linux/spinlock.h> #include <linux/sem.h> #include <linux/pci.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 bool 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 & V4L2_STD_NTSC) || (zr->card.type == LML33R10 && (zr->norm & V4L2_STD_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 (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 & V4L2_STD_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 already checked before the call to this routine. * All error messages are internal driver checking only! */ /* video display top and bottom registers */ reg = (long) zr->vbuf_base + zr->overlay_settings.x * ((zr->overlay_settings.format->depth + 7) / 8) + zr->overlay_settings.y * zr->vbuf_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->vbuf_bytesperline; btwrite(reg, ZR36057_VDBR); /* video stride, status, and frame grab register */ reg = zr->vbuf_bytesperline - zr->overlay_settings.width * ((zr->overlay_settings.format->depth + 7) / 8); if (zr->overlay_settings.height > BUZ_MAX_HEIGHT / 2) reg += zr->vbuf_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 zoran_fh *fh, struct v4l2_clip *vp, int count) { 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; /* fill mask with one bits */ memset(fh->overlay_mask, ~0, mask_line_size * 4 * BUZ_MAX_HEIGHT); for (i = 0; i < count; ++i) { /* pick up local copy of clip */ x = vp[i].c.left; y = vp[i].c.top; width = vp[i].c.width; height = vp[i].c.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) 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) { 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_call(zr, video, s_stream, 1); encoder_call(zr, video, s_routing, 0, 0, 0); /* 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_call(zr, video, s_stream, 0); set_videobus_dir(zr, 1); encoder_call(zr, video, s_routing, 1, 0, 0); /* 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_call(zr, video, s_stream, 1); encoder_call(zr, video, s_routing, 0, 0, 0); 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].jpg.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].jpg.frag_tab_bus); zr->stat_com[i + 1] = cpu_to_le32(zr->jpg_buffers.buffer[frame].jpg.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_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]; v4l2_get_timestamp(&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 zoran_restart(struct zoran *zr) { /* Now the stat_comm buffer is ready for restart */ unsigned int status = 0; int mode; if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) { decoder_call(zr, video, g_input_status, &status); mode = CODEC_DO_COMPRESSION; } else { status = V4L2_IN_ST_NO_SIGNAL; mode = CODEC_DO_EXPANSION; } if (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || !(status & V4L2_IN_ST_NO_SIGNAL)) { /********** 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 ***********/ } } static void error_handler (struct zoran *zr, u32 astat, u32 stat) { int i; /* This is JPEG error handling part */ if (zr->codec_mode != BUZ_MODE_MOTION_COMPRESS && zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS) { 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) { zoran_restart(zr); return; } /* * 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; int j; 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(KERN_INFO "stat_com frames:"); 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].jpg.frag_tab_bus) printk(KERN_CONT "% d->%d", j, i); } } printk(KERN_CONT "\n"); } /* Find an entry in stat_com and rotate contents */ 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; */ zoran_restart(zr); } 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; v4l2_get_timestamp(&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].v4l.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) && (zr->codec_mode == BUZ_MODE_MOTION_DECOMPRESS || zr->codec_mode == BUZ_MODE_MOTION_COMPRESS)) { if (zr36067_debug > 1 && (!zr->frame_num || zr->JPEG_error)) { char sv[BUZ_NUM_STAT_COM + 1]; int i; 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); for (i = 0; i < BUZ_NUM_STAT_COM; i++) sv[i] = le32_to_cpu(zr->stat_com[i]) & 1 ? '1' : '0'; sv[BUZ_NUM_STAT_COM] = 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 { /* Get statistics */ if (zr->JPEG_missed > zr->JPEG_max_missed) 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(KERN_INFO "%s: seq=%ld stat_com:", ZR_DEVNAME(zr), zr->jpg_seq_num); for (i = 0; i < 4; i++) { printk(KERN_CONT " %08x", le32_to_cpu(zr->stat_com[i])); } printk(KERN_CONT "\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); } #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) { /* Enable bus-mastering */ zoran_set_pci_master(zr, 1); /* Initialize the board */ if (zr->card.init) { zr->card.init(zr); } decoder_call(zr, core, init, 0); decoder_call(zr, video, s_std, zr->norm); decoder_call(zr, video, s_routing, zr->card.input[zr->input].muxsel, 0, 0); encoder_call(zr, core, init, 0); encoder_call(zr, video, s_std_output, zr->norm); encoder_call(zr, video, s_routing, 0, 0, 0); /* 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); }