diff options
Diffstat (limited to 'drivers/media/pci/zoran/zoran_device.c')
| -rw-r--r-- | drivers/media/pci/zoran/zoran_device.c | 1640 |
1 files changed, 1640 insertions, 0 deletions
diff --git a/drivers/media/pci/zoran/zoran_device.c b/drivers/media/pci/zoran/zoran_device.c new file mode 100644 index 000000000000..a4cd504b8eee --- /dev/null +++ b/drivers/media/pci/zoran/zoran_device.c @@ -0,0 +1,1640 @@ +/* + * 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 == 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) +{ + 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]; + 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 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; + 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].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, core, 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); +} |
