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authorRalf Baechle <ralf@linux-mips.org>2000-08-28 22:00:09 +0000
committerRalf Baechle <ralf@linux-mips.org>2000-08-28 22:00:09 +0000
commit1a1d77dd589de5a567fa95e36aa6999c704ceca4 (patch)
tree141e31f89f18b9fe0831f31852e0435ceaccafc5 /drivers/char/buz.c
parentfb9c690a18b3d66925a65b17441c37fa14d4370b (diff)
Merge with 2.4.0-test7.
Diffstat (limited to 'drivers/char/buz.c')
-rw-r--r--drivers/char/buz.c3479
1 files changed, 0 insertions, 3479 deletions
diff --git a/drivers/char/buz.c b/drivers/char/buz.c
deleted file mode 100644
index ca3cb4f47..000000000
--- a/drivers/char/buz.c
+++ /dev/null
@@ -1,3479 +0,0 @@
-#define MAX_KMALLOC_MEM (512*1024)
-/*
- buz - Iomega Buz driver version 1.0
-
- Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
-
- based on
-
- buz.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
-
- and
-
- bttv - Bt848 frame grabber driver
-
- Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
- & Marcus Metzler (mocm@thp.uni-koeln.de)
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/malloc.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-#include <linux/signal.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <linux/sched.h>
-#include <asm/segment.h>
-#include <linux/types.h>
-#include <linux/wrapper.h>
-#include <linux/spinlock.h>
-#include <linux/vmalloc.h>
-
-#include <linux/videodev.h>
-
-#include <linux/version.h>
-#include <asm/uaccess.h>
-
-#include <linux/i2c-old.h>
-#include "buz.h"
-#include <linux/video_decoder.h>
-#include <linux/video_encoder.h>
-
-#define IRQ_MASK ( ZR36057_ISR_GIRQ0 | /* ZR36057_ISR_GIRQ1 | ZR36057_ISR_CodRepIRQ | */ ZR36057_ISR_JPEGRepIRQ )
-#define GPIO_MASK 0xdf
-
-/*
-
- BUZ
-
- GPIO0 = 1, take board out of reset
- GPIO1 = 1, take JPEG codec out of sleep mode
- GPIO3 = 1, deassert FRAME# to 36060
-
-
- GIRQ0 signals a vertical sync of the video signal
- GIRQ1 signals that ZR36060's DATERR# line is asserted.
-
- SAA7111A
-
- In their infinite wisdom, the Iomega engineers decided to
- use the same input line for composite and S-Video Color,
- although there are two entries not connected at all!
- Through this ingenious strike, it is not possible to
- keep two running video sources connected at the same time
- to Composite and S-VHS input!
-
- mode 0 - N/C
- mode 1 - S-Video Y
- mode 2 - noise or something I don't know
- mode 3 - Composite and S-Video C
- mode 4 - N/C
- mode 5 - S-Video (gain C independently selectable of gain Y)
- mode 6 - N/C
- mode 7 - S-Video (gain C adapted to gain Y)
- */
-
-#define MAJOR_VERSION 1 /* driver major version */
-#define MINOR_VERSION 0 /* driver minor version */
-
-#define BUZ_NAME "Iomega BUZ V-1.0" /* name of the driver */
-
-#define DEBUG(x) /* Debug driver */
-#define IDEBUG(x) /* Debug interrupt handler */
-#define IOCTL_DEBUG(x)
-
-
-/* The parameters for this driver */
-
-/*
- The video mem address of the video card.
- The driver has a little database for some videocards
- to determine it from there. If your video card is not in there
- you have either to give it to the driver as a parameter
- or set in in a VIDIOCSFBUF ioctl
- */
-
-static unsigned long vidmem = 0; /* Video memory base address */
-
-/* Special purposes only: */
-
-static int triton = 0; /* 0=no, 1=yes */
-static int natoma = 0; /* 0=no, 1=yes */
-
-/*
- Number and size of grab buffers for Video 4 Linux
- The vast majority of applications should not need more than 2,
- the very popular BTTV driver actually does ONLY have 2.
- Time sensitive applications might need more, the maximum
- is VIDEO_MAX_FRAME (defined in <linux/videodev.h>).
-
- The size is set so that the maximum possible request
- can be satisfied. Decrease it, if bigphys_area alloc'd
- memory is low. If you don't have the bigphys_area patch,
- set it to 128 KB. Will you allow only to grab small
- images with V4L, but that's better than nothing.
-
- v4l_bufsize has to be given in KB !
-
- */
-
-static int v4l_nbufs = 2;
-static int v4l_bufsize = 128; /* Everybody should be able to work with this setting */
-
-/*
- Default input and video norm at startup of the driver.
- */
-
-static int default_input = 0; /* 0=Composite, 1=S-VHS */
-static int default_norm = 0; /* 0=PAL, 1=NTSC */
-
-MODULE_PARM(vidmem, "i");
-MODULE_PARM(triton, "i");
-MODULE_PARM(natoma, "i");
-MODULE_PARM(v4l_nbufs, "i");
-MODULE_PARM(v4l_bufsize, "i");
-MODULE_PARM(default_input, "i");
-MODULE_PARM(default_norm, "i");
-
-/* Anybody who uses more than four? */
-#define BUZ_MAX 4
-
-static int zoran_num; /* number of Buzs in use */
-static struct zoran zoran[BUZ_MAX];
-
-/* forward references */
-
-static void v4l_fbuffer_free(struct zoran *zr);
-static void jpg_fbuffer_free(struct zoran *zr);
-static void zoran_feed_stat_com(struct zoran *zr);
-
-
-
-/*
- * Allocate the V4L grab buffers
- *
- * These have to be pysically contiguous.
- * If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
- */
-
-static int v4l_fbuffer_alloc(struct zoran *zr)
-{
- int i, off;
- unsigned char *mem;
-
- for (i = 0; i < v4l_nbufs; i++) {
- if (zr->v4l_gbuf[i].fbuffer)
- printk(KERN_WARNING "%s: v4l_fbuffer_alloc: buffer %d allready allocated ?\n", zr->name, i);
-
- if (v4l_bufsize <= MAX_KMALLOC_MEM) {
- /* Use kmalloc */
-
- mem = (unsigned char *) kmalloc(v4l_bufsize, GFP_KERNEL);
- if (mem == 0) {
- printk(KERN_ERR "%s: kmalloc for V4L bufs failed\n", zr->name);
- v4l_fbuffer_free(zr);
- return -ENOBUFS;
- }
- zr->v4l_gbuf[i].fbuffer = mem;
- zr->v4l_gbuf[i].fbuffer_phys = virt_to_phys(mem);
- zr->v4l_gbuf[i].fbuffer_bus = virt_to_bus(mem);
- for (off = 0; off < v4l_bufsize; off += PAGE_SIZE)
- mem_map_reserve(virt_to_page(mem + off));
- DEBUG(printk(BUZ_INFO ": V4L frame %d mem 0x%x (bus: 0x%x=%d)\n", i, mem, virt_to_bus(mem), virt_to_bus(mem)));
- } else {
- return -ENOBUFS;
- }
- }
-
- return 0;
-}
-
-/* free the V4L grab buffers */
-static void v4l_fbuffer_free(struct zoran *zr)
-{
- int i, off;
- unsigned char *mem;
-
- for (i = 0; i < v4l_nbufs; i++) {
- if (!zr->v4l_gbuf[i].fbuffer)
- continue;
-
- mem = zr->v4l_gbuf[i].fbuffer;
- for (off = 0; off < v4l_bufsize; off += PAGE_SIZE)
- mem_map_unreserve(virt_to_page(mem + off));
- kfree((void *) zr->v4l_gbuf[i].fbuffer);
- zr->v4l_gbuf[i].fbuffer = NULL;
- }
-}
-
-/*
- * Allocate the MJPEG grab buffers.
- *
- * If the requested buffer size is smaller than MAX_KMALLOC_MEM,
- * kmalloc is used to request a physically contiguous area,
- * else we allocate the memory in framgents with get_free_page.
- *
- * If a Natoma chipset is present and this is a revision 1 zr36057,
- * each MJPEG buffer needs to be physically contiguous.
- * (RJ: This statement is from Dave Perks' original driver,
- * I could never check it because I have a zr36067)
- * The driver cares about this because it reduces the buffer
- * size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
- *
- * RJ: The contents grab buffers needs never be accessed in the driver.
- * Therefore there is no need to allocate them with vmalloc in order
- * to get a contiguous virtual memory space.
- * I don't understand why many other drivers first allocate them with
- * vmalloc (which uses internally also get_free_page, but delivers you
- * virtual addresses) and then again have to make a lot of efforts
- * to get the physical address.
- *
- */
-
-static int jpg_fbuffer_alloc(struct zoran *zr)
-{
- int i, j, off, alloc_contig;
- unsigned long mem;
-
- /* Decide if we should alloc contiguous or fragmented memory */
- /* This has to be identical in jpg_fbuffer_alloc and jpg_fbuffer_free */
-
- alloc_contig = (zr->jpg_bufsize < MAX_KMALLOC_MEM);
-
- for (i = 0; i < zr->jpg_nbufs; i++) {
- if (zr->jpg_gbuf[i].frag_tab)
- printk(KERN_WARNING "%s: jpg_fbuffer_alloc: buffer %d allready allocated ???\n", zr->name, i);
-
- /* Allocate fragment table for this buffer */
-
- mem = get_free_page(GFP_KERNEL);
- if (mem == 0) {
- printk(KERN_ERR "%s: jpg_fbuffer_alloc: get_free_page (frag_tab) failed for buffer %d\n", zr->name, i);
- jpg_fbuffer_free(zr);
- return -ENOBUFS;
- }
- memset((void *) mem, 0, PAGE_SIZE);
- zr->jpg_gbuf[i].frag_tab = (u32 *) mem;
- zr->jpg_gbuf[i].frag_tab_bus = virt_to_bus((void *) mem);
-
- if (alloc_contig) {
- mem = (unsigned long) kmalloc(zr->jpg_bufsize, GFP_KERNEL);
- if (mem == 0) {
- jpg_fbuffer_free(zr);
- return -ENOBUFS;
- }
- zr->jpg_gbuf[i].frag_tab[0] = virt_to_bus((void *) mem);
- zr->jpg_gbuf[i].frag_tab[1] = ((zr->jpg_bufsize / 4) << 1) | 1;
- for (off = 0; off < zr->jpg_bufsize; off += PAGE_SIZE)
- mem_map_reserve(virt_to_page(mem + off));
- } else {
- /* jpg_bufsize is alreay page aligned */
- for (j = 0; j < zr->jpg_bufsize / PAGE_SIZE; j++) {
- mem = get_free_page(GFP_KERNEL);
- if (mem == 0) {
- jpg_fbuffer_free(zr);
- return -ENOBUFS;
- }
- zr->jpg_gbuf[i].frag_tab[2 * j] = virt_to_bus((void *) mem);
- zr->jpg_gbuf[i].frag_tab[2 * j + 1] = (PAGE_SIZE / 4) << 1;
- mem_map_reserve(virt_to_page(mem));
- }
-
- zr->jpg_gbuf[i].frag_tab[2 * j - 1] |= 1;
- }
- }
-
- DEBUG(printk("jpg_fbuffer_alloc: %d KB allocated\n",
- (zr->jpg_nbufs * zr->jpg_bufsize) >> 10));
- zr->jpg_buffers_allocated = 1;
- return 0;
-}
-
-/* free the MJPEG grab buffers */
-static void jpg_fbuffer_free(struct zoran *zr)
-{
- int i, j, off, alloc_contig;
- unsigned char *mem;
-
- /* Decide if we should alloc contiguous or fragmented memory */
- /* This has to be identical in jpg_fbuffer_alloc and jpg_fbuffer_free */
-
- alloc_contig = (zr->jpg_bufsize < MAX_KMALLOC_MEM);
-
- for (i = 0; i < zr->jpg_nbufs; i++) {
- if (!zr->jpg_gbuf[i].frag_tab)
- continue;
-
- if (alloc_contig) {
- if (zr->jpg_gbuf[i].frag_tab[0]) {
- mem = (unsigned char *) bus_to_virt(zr->jpg_gbuf[i].frag_tab[0]);
- for (off = 0; off < zr->jpg_bufsize; off += PAGE_SIZE)
- mem_map_unreserve(virt_to_page(mem + off));
- kfree((void *) mem);
- zr->jpg_gbuf[i].frag_tab[0] = 0;
- zr->jpg_gbuf[i].frag_tab[1] = 0;
- }
- } else {
- for (j = 0; j < zr->jpg_bufsize / PAGE_SIZE; j++) {
- if (!zr->jpg_gbuf[i].frag_tab[2 * j])
- break;
- mem_map_unreserve(virt_to_page(bus_to_virt(zr->jpg_gbuf[i].frag_tab[2 * j])));
- free_page((unsigned long) bus_to_virt(zr->jpg_gbuf[i].frag_tab[2 * j]));
- zr->jpg_gbuf[i].frag_tab[2 * j] = 0;
- zr->jpg_gbuf[i].frag_tab[2 * j + 1] = 0;
- }
- }
-
- free_page((unsigned long) zr->jpg_gbuf[i].frag_tab);
- zr->jpg_gbuf[i].frag_tab = NULL;
- }
- zr->jpg_buffers_allocated = 0;
-}
-
-
-/* ----------------------------------------------------------------------- */
-
-/* I2C functions */
-
-#define I2C_DELAY 10
-
-
-/* software I2C functions */
-
-static void i2c_setlines(struct i2c_bus *bus, int ctrl, int data)
-{
- struct zoran *zr = (struct zoran *) bus->data;
- btwrite((data << 1) | ctrl, ZR36057_I2CBR);
- btread(ZR36057_I2CBR);
- udelay(I2C_DELAY);
-}
-
-static int i2c_getdataline(struct i2c_bus *bus)
-{
- struct zoran *zr = (struct zoran *) bus->data;
- return (btread(ZR36057_I2CBR) >> 1) & 1;
-}
-
-static void attach_inform(struct i2c_bus *bus, int id)
-{
- DEBUG(struct zoran *zr = (struct zoran *) bus->data);
- DEBUG(printk(BUZ_DEBUG "-%u: i2c attach %02x\n", zr->id, id));
-}
-
-static void detach_inform(struct i2c_bus *bus, int id)
-{
- DEBUG(struct zoran *zr = (struct zoran *) bus->data);
- DEBUG(printk(BUZ_DEBUG "-%u: i2c detach %02x\n", zr->id, id));
-}
-
-static struct i2c_bus zoran_i2c_bus_template =
-{
- "zr36057",
- I2C_BUSID_BT848,
- NULL,
-
- SPIN_LOCK_UNLOCKED,
-
- attach_inform,
- detach_inform,
-
- i2c_setlines,
- i2c_getdataline,
- NULL,
- NULL,
-};
-
-
-/* ----------------------------------------------------------------------- */
-
-static void GPIO(struct zoran *zr, unsigned bit, unsigned value)
-{
- u32 reg;
- u32 mask;
-
- mask = 1 << (24 + bit);
- reg = btread(ZR36057_GPPGCR1) & ~mask;
- if (value) {
- reg |= mask;
- }
- btwrite(reg, ZR36057_GPPGCR1);
- /* Stop any PCI posting on the GPIO bus */
- btread(ZR36057_I2CBR);
-}
-
-
-/*
- * 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.
- */
-
-struct tvnorm {
- u16 Wt, Wa, Ht, Ha, HStart, VStart;
-};
-
-static struct tvnorm tvnorms[] =
-{
- /* PAL-BDGHI */
- {864, 720, 625, 576, 31, 16},
- /* NTSC */
- {858, 720, 525, 480, 21, 8},
-};
-#define TVNORMS (sizeof(tvnorms) / sizeof(tvnorm))
-
-static int format2bpp(int format)
-{
- int bpp;
-
- /* Determine the number of bytes per pixel for the video format requested */
-
- switch (format) {
-
- case VIDEO_PALETTE_YUV422:
- bpp = 2;
- break;
-
- case VIDEO_PALETTE_RGB555:
- bpp = 2;
- break;
-
- case VIDEO_PALETTE_RGB565:
- bpp = 2;
- break;
-
- case VIDEO_PALETTE_RGB24:
- bpp = 3;
- break;
-
- case VIDEO_PALETTE_RGB32:
- bpp = 4;
- break;
-
- default:
- bpp = 0;
- }
-
- return bpp;
-}
-
-/*
- * set geometry
- */
-static void zr36057_set_vfe(struct zoran *zr, int video_width, int video_height,
- unsigned int video_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;
-
- if (zr->params.norm < 0 || zr->params.norm > 1) {
- printk(KERN_ERR "%s: set_vfe: video_norm = %d not valid\n", zr->name, zr->params.norm);
- return;
- }
- if (video_width < BUZ_MIN_WIDTH || video_height < BUZ_MIN_HEIGHT) {
- printk(KERN_ERR "%s: set_vfe: w=%d h=%d not valid\n", zr->name, video_width, video_height);
- return;
- }
- tvn = &tvnorms[zr->params.norm];
-
- Wa = tvn->Wa;
- Ha = tvn->Ha;
-
- /* if window has more than half of active height,
- switch on interlacing - we want the full information */
-
- zr->video_interlace = (video_height > Ha / 2);
-
-/**** 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 | 1;
- HEnd = HStart + tvn->Wa - 1;
- HStart += hcrop1;
- HEnd -= hcrop2;
- reg = ((HStart & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HStart)
- | ((HEnd & ZR36057_VFEHCR_Hmask) << ZR36057_VFEHCR_HEnd);
- reg |= ZR36057_VFEHCR_HSPol;
- btwrite(reg, ZR36057_VFEHCR);
-
- /* Vertical */
- DispMode = !zr->video_interlace;
- 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;
- VStart += vcrop1;
- VEnd -= vcrop2;
- reg = ((VStart & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VStart)
- | ((VEnd & ZR36057_VFEVCR_Vmask) << ZR36057_VFEVCR_VEnd);
- reg |= ZR36057_VFEVCR_VSPol;
- btwrite(reg, ZR36057_VFEVCR);
-
- /* scaler and pixel format */
- reg = 0 // ZR36057_VFESPFR_ExtFl /* Trying to live without ExtFl */
- | (HorDcm << ZR36057_VFESPFR_HorDcm)
- | (VerDcm << ZR36057_VFESPFR_VerDcm)
- | (DispMode << ZR36057_VFESPFR_DispMode)
- | 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 */
- reg |= ZR36057_VFESPFR_TopField;
- switch (video_format) {
-
- 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:
- printk(KERN_INFO "%s: Unknown color_fmt=%x\n", zr->name, video_format);
- 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 (triton)
- reg &= ~ZR36057_VDCR_Triton;
- else
- reg |= ZR36057_VDCR_Triton;
- btwrite(reg, ZR36057_VDCR);
-
- /* Write overlay clipping mask data, but don't enable overlay clipping */
- /* RJ: since this makes only sense on the screen, we use
- zr->window.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->window.width + 31) / 32;
- if (DispMode == 0)
- reg += mask_line_size;
- reg <<= ZR36057_OCR_MaskStride;
- btwrite(reg, ZR36057_OCR);
-
-}
-
-/*
- * Switch overlay on or off
- */
-
-static void zr36057_overlay(struct zoran *zr, int on)
-{
- int fmt, bpp;
- u32 reg;
-
- if (on) {
- /* do the necessary settings ... */
-
- btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR); /* switch it off first */
-
- switch (zr->buffer.depth) {
- case 15:
- fmt = VIDEO_PALETTE_RGB555;
- bpp = 2;
- break;
- case 16:
- fmt = VIDEO_PALETTE_RGB565;
- bpp = 2;
- break;
- case 24:
- fmt = VIDEO_PALETTE_RGB24;
- bpp = 3;
- break;
- case 32:
- fmt = VIDEO_PALETTE_RGB32;
- bpp = 4;
- break;
- default:
- fmt = 0;
- bpp = 0;
- }
-
- zr36057_set_vfe(zr, zr->window.width, zr->window.height, fmt);
-
- /* 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->window.x * bpp
- + zr->window.y * zr->buffer.bytesperline;
- btwrite(reg, ZR36057_VDTR);
- if (reg & 3)
- printk(KERN_ERR "%s: zr36057_overlay: video_address not aligned\n", zr->name);
- if (zr->video_interlace)
- reg += zr->buffer.bytesperline;
- btwrite(reg, ZR36057_VDBR);
-
- /* video stride, status, and frame grab register */
-
- reg = zr->buffer.bytesperline - zr->window.width * bpp;
- if (zr->video_interlace)
- reg += zr->buffer.bytesperline;
- if (reg & 3)
- printk(KERN_ERR "%s: zr36057_overlay: video_stride not aligned\n", zr->name);
- reg = (reg << ZR36057_VSSFGR_DispStride);
- reg |= ZR36057_VSSFGR_VidOvf; /* clear overflow status */
- btwrite(reg, ZR36057_VSSFGR);
-
- /* Set overlay clipping */
-
- if (zr->window.clipcount)
- 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.
- */
-static void write_overlay_mask(struct zoran *zr, struct video_clip *vp, int count)
-{
- 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(zr->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 > zr->window.width) {
- width = zr->window.width - x;
- }
- if (y + height > zr->window.height) {
- height = zr->window.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 = zr->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 */
-
-static void zr36057_set_memgrab(struct zoran *zr, int mode)
-{
- if (mode) {
- if (btread(ZR36057_VSSFGR) & (ZR36057_VSSFGR_SnapShot | ZR36057_VSSFGR_FrameGrab))
- printk(KERN_WARNING "%s: zr36057_set_memgrab_on with SnapShot or FrameGrab on ???\n", zr->name);
-
- /* switch on VSync interrupts */
-
- btwrite(IRQ_MASK, ZR36057_ISR); // Clear Interrupts
-
- btor(ZR36057_ICR_GIRQ0, ZR36057_ICR);
-
- /* enable SnapShot */
-
- btor(ZR36057_VSSFGR_SnapShot, ZR36057_VSSFGR);
-
- /* Set zr36057 video front end and enable video */
-
-#ifdef XAWTV_HACK
- zr36057_set_vfe(zr, zr->gwidth > 720 ? 720 : zr->gwidth, zr->gheight, zr->gformat);
-#else
- zr36057_set_vfe(zr, zr->gwidth, zr->gheight, zr->gformat);
-#endif
-
- zr->v4l_memgrab_active = 1;
- } else {
- zr->v4l_memgrab_active = 0;
-
- /* switch off VSync interrupts */
-
- btand(~ZR36057_ICR_GIRQ0, ZR36057_ICR);
-
- /* 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);
- }
- }
-}
-
-static int wait_grab_pending(struct zoran *zr)
-{
- unsigned long flags;
-
- /* wait until all pending grabs are finished */
-
- if (!zr->v4l_memgrab_active)
- return 0;
-
- while (zr->v4l_pend_tail != zr->v4l_pend_head) {
- interruptible_sleep_on(&zr->v4l_capq);
- if (signal_pending(current))
- return -ERESTARTSYS;
- }
-
- spin_lock_irqsave(&zr->lock, flags);
- zr36057_set_memgrab(zr, 0);
- spin_unlock_irqrestore(&zr->lock, flags);
-
- return 0;
-}
-
-/*
- * V4L Buffer grabbing
- */
-
-static int v4l_grab(struct zoran *zr, struct video_mmap *mp)
-{
- unsigned long flags;
- int res, bpp;
-
- /*
- * There is a long list of limitations to what is allowed to be grabbed
- * We don't output error messages her, since some programs (e.g. xawtv)
- * just try several settings to find out what is valid or not.
- */
-
- /* No grabbing outside the buffer range! */
-
- if (mp->frame >= v4l_nbufs || mp->frame < 0)
- return -EINVAL;
-
- /* Check size and format of the grab wanted */
-
- if (mp->height < BUZ_MIN_HEIGHT || mp->width < BUZ_MIN_WIDTH)
- return -EINVAL;
- if (mp->height > BUZ_MAX_HEIGHT || mp->width > BUZ_MAX_WIDTH)
- return -EINVAL;
-
- bpp = format2bpp(mp->format);
- if (bpp == 0)
- return -EINVAL;
-
- /* Check against available buffer size */
-
- if (mp->height * mp->width * bpp > v4l_bufsize)
- return -EINVAL;
-
- /* The video front end needs 4-byte alinged line sizes */
-
- if ((bpp == 2 && (mp->width & 1)) || (bpp == 3 && (mp->width & 3)))
- return -EINVAL;
-
- /*
- * To minimize the time spent in the IRQ routine, we avoid setting up
- * the video front end there.
- * If this grab has different parameters from a running streaming capture
- * we stop the streaming capture and start it over again.
- */
-
- if (zr->v4l_memgrab_active &&
- (zr->gwidth != mp->width || zr->gheight != mp->height || zr->gformat != mp->format)) {
- res = wait_grab_pending(zr);
- if (res)
- return res;
- }
- zr->gwidth = mp->width;
- zr->gheight = mp->height;
- zr->gformat = mp->format;
- zr->gbpl = bpp * zr->gwidth;
-
-
- spin_lock_irqsave(&zr->lock, flags);
-
- /* make sure a grab isn't going on currently with this buffer */
-
- switch (zr->v4l_gbuf[mp->frame].state) {
-
- default:
- case BUZ_STATE_PEND:
- res = -EBUSY; /* what are you doing? */
- break;
-
- case BUZ_STATE_USER:
- case BUZ_STATE_DONE:
- /* since there is at least one unused buffer there's room for at least one more pend[] entry */
- zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = mp->frame;
- zr->v4l_gbuf[mp->frame].state = BUZ_STATE_PEND;
- res = 0;
- break;
-
- }
-
- /* put the 36057 into frame grabbing mode */
-
- if (!res && !zr->v4l_memgrab_active)
- zr36057_set_memgrab(zr, 1);
-
- spin_unlock_irqrestore(&zr->lock, flags);
-
- return res;
-}
-
-/*
- * Sync on a V4L buffer
- */
-
-static int v4l_sync(struct zoran *zr, int frame)
-{
- unsigned long flags;
-
-
- /* check passed-in frame number */
- if (frame >= v4l_nbufs || frame < 0) {
- printk(KERN_ERR "%s: v4l_sync: frame %d is invalid\n", zr->name, frame);
- return -EINVAL;
- }
- /* Check if is buffer was queued at all */
-
- if (zr->v4l_gbuf[frame].state == BUZ_STATE_USER) {
-// printk(KERN_ERR "%s: v4l_sync: Trying to sync on a buffer which was not queued?\n", zr->name);
- return -EINVAL;
- }
- /* wait on this buffer to get ready */
-
- while (zr->v4l_gbuf[frame].state == BUZ_STATE_PEND) {
- interruptible_sleep_on(&zr->v4l_capq);
- if (signal_pending(current))
- return -ERESTARTSYS;
- }
-
- /* buffer should now be in BUZ_STATE_DONE */
-
- if (zr->v4l_gbuf[frame].state != BUZ_STATE_DONE)
- printk(KERN_ERR "%s: v4l_sync - internal error\n", zr->name);
-
- /* Check if streaming capture has finished */
-
- spin_lock_irqsave(&zr->lock, flags);
-
- if (zr->v4l_pend_tail == zr->v4l_pend_head)
- zr36057_set_memgrab(zr, 0);
-
- spin_unlock_irqrestore(&zr->lock, flags);
-
- return 0;
-}
-/*****************************************************************************
- * *
- * Set up the Buz-specific MJPEG part *
- * *
- *****************************************************************************/
-
-/*
- * Wait til post office is no longer busy
- */
-
-static int post_office_wait(struct zoran *zr)
-{
- u32 por;
- u32 ct=0;
-
- while (((por = btread(ZR36057_POR)) & (ZR36057_POR_POPen | ZR36057_POR_POTime)) == ZR36057_POR_POPen) {
- ct++;
- if(ct>100000)
- {
- printk(KERN_ERR "%s: timeout on post office.\n", zr->name);
- return -1;
- }
- /* wait for something to happen */
- }
- if ((por & ZR36057_POR_POPen) != 0) {
- printk(KERN_WARNING "%s: pop pending %08x\n", zr->name, por);
- return -1;
- }
- if ((por & (ZR36057_POR_POTime | ZR36057_POR_POPen)) != 0) {
- printk(KERN_WARNING "%s: pop timeout %08x\n", zr->name, por);
- return -1;
- }
- return 0;
-}
-
-static int post_office_write(struct zoran *zr, unsigned guest, unsigned reg, unsigned value)
-{
- u32 por;
-
- post_office_wait(zr);
- por = ZR36057_POR_PODir | ZR36057_POR_POTime | ((guest & 7) << 20) | ((reg & 7) << 16) | (value & 0xFF);
- btwrite(por, ZR36057_POR);
- return post_office_wait(zr);
-}
-
-static int post_office_read(struct zoran *zr, unsigned guest, unsigned reg)
-{
- u32 por;
-
- post_office_wait(zr);
- 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;
-}
-
-static int zr36060_write_8(struct zoran *zr, unsigned reg, unsigned val)
-{
- if (post_office_wait(zr)
- || post_office_write(zr, 0, 1, reg >> 8)
- || post_office_write(zr, 0, 2, reg)) {
- return -1;
- }
- return post_office_write(zr, 0, 3, val);
-}
-
-static int zr36060_write_16(struct zoran *zr, unsigned reg, unsigned val)
-{
- if (zr36060_write_8(zr, reg + 0, val >> 8)) {
- return -1;
- }
- return zr36060_write_8(zr, reg + 1, val >> 0);
-}
-
-static int zr36060_write_24(struct zoran *zr, unsigned reg, unsigned val)
-{
- if (zr36060_write_8(zr, reg + 0, val >> 16)) {
- return -1;
- }
- return zr36060_write_16(zr, reg + 1, val >> 0);
-}
-
-static int zr36060_write_32(struct zoran *zr, unsigned reg, unsigned val)
-{
- if (zr36060_write_16(zr, reg + 0, val >> 16)) {
- return -1;
- }
- return zr36060_write_16(zr, reg + 2, val >> 0);
-}
-
-static u32 zr36060_read_8(struct zoran *zr, unsigned reg)
-{
- if (post_office_wait(zr)
- || post_office_write(zr, 0, 1, reg >> 8)
- || post_office_write(zr, 0, 2, reg)) {
- return -1;
- }
- return post_office_read(zr, 0, 3) & 0xFF;
-}
-
-static int zr36060_reset(struct zoran *zr)
-{
- return post_office_write(zr, 3, 0, 0);
-}
-
-static void zr36060_sleep(struct zoran *zr, int sleep)
-{
- GPIO(zr, 1, !sleep);
-}
-
-
-static void zr36060_set_jpg(struct zoran *zr, enum zoran_codec_mode mode)
-{
- struct tvnorm *tvn;
- u32 reg;
- int size;
-
- reg = (1 << 0) /* CodeMstr */
- |(0 << 2) /* CFIS=0 */
- |(0 << 6) /* Endian=0 */
- |(0 << 7); /* Code16=0 */
- zr36060_write_8(zr, 0x002, reg);
-
- switch (mode) {
-
- case BUZ_MODE_MOTION_DECOMPRESS:
- case BUZ_MODE_STILL_DECOMPRESS:
- reg = 0x00; /* Codec mode = decompression */
- break;
-
- case BUZ_MODE_MOTION_COMPRESS:
- case BUZ_MODE_STILL_COMPRESS:
- default:
- reg = 0xa4; /* Codec mode = compression with variable scale factor */
- break;
-
- }
- zr36060_write_8(zr, 0x003, reg);
-
- reg = 0x00; /* reserved, mbz */
- zr36060_write_8(zr, 0x004, reg);
-
- reg = 0xff; /* 510 bits/block */
- zr36060_write_8(zr, 0x005, reg);
-
- /* JPEG markers */
- reg = (zr->params.jpeg_markers) & 0x38; /* DRI, DQT, DHT */
- if (zr->params.COM_len)
- reg |= JPEG_MARKER_COM;
- if (zr->params.APP_len)
- reg |= JPEG_MARKER_APP;
- zr36060_write_8(zr, 0x006, reg);
-
- reg = (0 << 3) /* DATERR=0 */
- |(0 << 2) /* END=0 */
- |(0 << 1) /* EOI=0 */
- |(0 << 0); /* EOAV=0 */
- zr36060_write_8(zr, 0x007, reg);
-
- /* code volume */
-
- /* Target field size in pixels: */
- tvn = &tvnorms[zr->params.norm];
- size = (tvn->Ha / 2) * (tvn->Wa) / (zr->params.HorDcm) / (zr->params.VerDcm);
-
- /* Target compressed field size in bits: */
- size = size * 16; /* uncompressed size in bits */
- size = size * zr->params.quality / 400; /* quality = 100 is a compression ratio 1:4 */
-
- /* Lower limit (arbitrary, 1 KB) */
- if (size < 8192)
- size = 8192;
-
- /* Upper limit: 7/8 of the code buffers */
- if (size * zr->params.field_per_buff > zr->jpg_bufsize * 7)
- size = zr->jpg_bufsize * 7 / zr->params.field_per_buff;
-
- reg = size;
- zr36060_write_32(zr, 0x009, reg);
-
- /* how do we set initial SF as a function of quality parameter? */
- reg = 0x0100; /* SF=1.0 */
- zr36060_write_16(zr, 0x011, reg);
-
- reg = 0x00ffffff; /* AF=max */
- zr36060_write_24(zr, 0x013, reg);
-
- reg = 0x0000; /* test */
- zr36060_write_16(zr, 0x024, reg);
-}
-
-static void zr36060_set_video(struct zoran *zr, enum zoran_codec_mode mode)
-{
- struct tvnorm *tvn;
- u32 reg;
-
- reg = (0 << 7) /* Video8=0 */
- |(0 << 6) /* Range=0 */
- |(0 << 3) /* FlDet=0 */
- |(1 << 2) /* FlVedge=1 */
- |(0 << 1) /* FlExt=0 */
- |(0 << 0); /* SyncMstr=0 */
-
- /* According to ZR36067 documentation, FlDet should correspond
- to the odd_even flag of the ZR36067 */
- if (zr->params.odd_even)
- reg |= (1 << 3);
-
- if (mode != BUZ_MODE_STILL_DECOMPRESS) {
- /* limit pixels to range 16..235 as per CCIR-601 */
- reg |= (1 << 6); /* Range=1 */
- }
- zr36060_write_8(zr, 0x030, reg);
-
- reg = (0 << 7) /* VCLKPol=0 */
- |(0 << 6) /* PValPol=0 */
- |(1 << 5) /* PoePol=1 */
- |(0 << 4) /* SImgPol=0 */
- |(0 << 3) /* BLPol=0 */
- |(0 << 2) /* FlPol=0 */
- |(0 << 1) /* HSPol=0, sync on falling edge */
- |(1 << 0); /* VSPol=1 */
- zr36060_write_8(zr, 0x031, reg);
-
- switch (zr->params.HorDcm) {
- default:
- case 1:
- reg = (0 << 0);
- break; /* HScale = 0 */
-
- case 2:
- reg = (1 << 0);
- break; /* HScale = 1 */
-
- case 4:
- reg = (2 << 0);
- break; /* HScale = 2 */
- }
- if (zr->params.VerDcm == 2)
- reg |= (1 << 2);
- zr36060_write_8(zr, 0x032, reg);
-
- reg = 0x80; /* BackY */
- zr36060_write_8(zr, 0x033, reg);
-
- reg = 0xe0; /* BackU */
- zr36060_write_8(zr, 0x034, reg);
-
- reg = 0xe0; /* BackV */
- zr36060_write_8(zr, 0x035, reg);
-
- /* sync generator */
-
- tvn = &tvnorms[zr->params.norm];
-
- reg = tvn->Ht - 1; /* Vtotal */
- zr36060_write_16(zr, 0x036, reg);
-
- reg = tvn->Wt - 1; /* Htotal */
- zr36060_write_16(zr, 0x038, reg);
-
- reg = 6 - 1; /* VsyncSize */
- zr36060_write_8(zr, 0x03a, reg);
-
- reg = 100 - 1; /* HsyncSize */
- zr36060_write_8(zr, 0x03b, reg);
-
- reg = tvn->VStart - 1; /* BVstart */
- zr36060_write_8(zr, 0x03c, reg);
-
- reg += tvn->Ha / 2; /* BVend */
- zr36060_write_16(zr, 0x03e, reg);
-
- reg = tvn->HStart - 1; /* BHstart */
- zr36060_write_8(zr, 0x03d, reg);
-
- reg += tvn->Wa; /* BHend */
- zr36060_write_16(zr, 0x040, reg);
-
- /* active area */
- reg = zr->params.img_y + tvn->VStart; /* Vstart */
- zr36060_write_16(zr, 0x042, reg);
-
- reg += zr->params.img_height; /* Vend */
- zr36060_write_16(zr, 0x044, reg);
-
- reg = zr->params.img_x + tvn->HStart; /* Hstart */
- zr36060_write_16(zr, 0x046, reg);
-
- reg += zr->params.img_width; /* Hend */
- zr36060_write_16(zr, 0x048, reg);
-
- /* subimage area */
- reg = zr->params.img_y + tvn->VStart; /* SVstart */
- zr36060_write_16(zr, 0x04a, reg);
-
- reg += zr->params.img_height; /* SVend */
- zr36060_write_16(zr, 0x04c, reg);
-
- reg = zr->params.img_x + tvn->HStart; /* SHstart */
- zr36060_write_16(zr, 0x04e, reg);
-
- reg += zr->params.img_width; /* SHend */
- zr36060_write_16(zr, 0x050, reg);
-}
-
-static void zr36060_set_jpg_SOF(struct zoran *zr)
-{
- u32 reg;
-
-
- reg = 0xffc0; /* SOF marker */
- zr36060_write_16(zr, 0x060, reg);
-
- reg = 17; /* SOF length */
- zr36060_write_16(zr, 0x062, reg);
-
- reg = 8; /* precision 8 bits */
- zr36060_write_8(zr, 0x064, reg);
-
- reg = zr->params.img_height / zr->params.VerDcm; /* image height */
- zr36060_write_16(zr, 0x065, reg);
-
- reg = zr->params.img_width / zr->params.HorDcm; /* image width */
- zr36060_write_16(zr, 0x067, reg);
-
- reg = 3; /* 3 color components */
- zr36060_write_8(zr, 0x069, reg);
-
- reg = 0x002100; /* Y component */
- zr36060_write_24(zr, 0x06a, reg);
-
- reg = 0x011101; /* U component */
- zr36060_write_24(zr, 0x06d, reg);
-
- reg = 0x021101; /* V component */
- zr36060_write_24(zr, 0x070, reg);
-}
-
-static void zr36060_set_jpg_SOS(struct zoran *zr)
-{
- u32 reg;
-
-
- reg = 0xffda; /* SOS marker */
- zr36060_write_16(zr, 0x07a, reg);
-
- reg = 12; /* SOS length */
- zr36060_write_16(zr, 0x07c, reg);
-
- reg = 3; /* 3 color components */
- zr36060_write_8(zr, 0x07e, reg);
-
- reg = 0x0000; /* Y component */
- zr36060_write_16(zr, 0x07f, reg);
-
- reg = 0x0111; /* U component */
- zr36060_write_16(zr, 0x081, reg);
-
- reg = 0x0211; /* V component */
- zr36060_write_16(zr, 0x083, reg);
-
- reg = 0x003f00; /* Start, end spectral scans */
- zr36060_write_24(zr, 0x085, reg);
-}
-
-static void zr36060_set_jpg_DRI(struct zoran *zr)
-{
- u32 reg;
-
-
- reg = 0xffdd; /* DRI marker */
- zr36060_write_16(zr, 0x0c0, reg);
-
- reg = 4; /* DRI length */
- zr36060_write_16(zr, 0x0c2, reg);
-
- reg = 8; /* length in MCUs */
- zr36060_write_16(zr, 0x0c4, reg);
-}
-
-static void zr36060_set_jpg_DQT(struct zoran *zr)
-{
- unsigned i;
- unsigned adr;
- static const u8 dqt[] =
- {
- 0xff, 0xdb, /* DHT marker */
- 0x00, 0x84, /* DHT length */
- 0x00, /* table ID 0 */
- 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e,
- 0x0d, 0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28,
- 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25,
- 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33,
- 0x38, 0x37, 0x40, 0x48, 0x5c, 0x4e, 0x40, 0x44,
- 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51, 0x57,
- 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71,
- 0x79, 0x70, 0x64, 0x78, 0x5c, 0x65, 0x67, 0x63,
- 0x01, /* table ID 1 */
- 0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a,
- 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63
- };
-
- /* write fixed quantitization tables */
- adr = 0x0cc;
- for (i = 0; i < sizeof(dqt); ++i) {
- zr36060_write_8(zr, adr++, dqt[i]);
- }
-}
-
-static void zr36060_set_jpg_DHT(struct zoran *zr)
-{
- unsigned i;
- unsigned adr;
- static const u8 dht[] =
- {
- 0xff, 0xc4, /* DHT marker */
- 0x01, 0xa2, /* DHT length */
- 0x00, /* table class 0, ID 0 */
- 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, /* # codes of length 1..8 */
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* # codes of length 8..16 */
- 0x00, /* values for codes of length 2 */
- 0x01, 0x02, 0x03, 0x04, 0x05, /* values for codes of length 3 */
- 0x06, /* values for codes of length 4 */
- 0x07, /* values for codes of length 5 */
- 0x08, /* values for codes of length 6 */
- 0x09, /* values for codes of length 7 */
- 0x0a, /* values for codes of length 8 */
- 0x0b, /* values for codes of length 9 */
- 0x01, /* table class 0, ID 1 */
- 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, /* # codes of length 1..8 */
- 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, /* # codes of length 9..16 */
- 0x00, 0x01, 0x02, /* values for codes of length 2 */
- 0x03, /* values for codes of length 3 */
- 0x04, /* values for codes of length 4 */
- 0x05, /* values for codes of length 5 */
- 0x06, /* values for codes of length 6 */
- 0x07, /* values for codes of length 7 */
- 0x08, /* values for codes of length 8 */
- 0x09, /* values for codes of length 9 */
- 0x0a, /* values for codes of length 10 */
- 0x0b, /* values for codes of length 11 */
- 0x10,
- 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03,
- 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7d,
- 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12,
- 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07,
- 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08,
- 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0,
- 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16,
- 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28,
- 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
- 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
- 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
- 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
- 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
- 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
- 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98,
- 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
- 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6,
- 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5,
- 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4,
- 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2,
- 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea,
- 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8,
- 0xf9, 0xfa, 0x11, 0x00, 0x02, 0x01, 0x02, 0x04,
- 0x04, 0x03, 0x04, 0x07, 0x05, 0x04, 0x04, 0x00,
- 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11,
- 0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51,
- 0x07, 0x61, 0x71, 0x13, 0x22, 0x32, 0x81, 0x08,
- 0x14, 0x42, 0x91, 0xa1, 0xb1, 0xc1, 0x09, 0x23,
- 0x33, 0x52, 0xf0, 0x15, 0x62, 0x72, 0xd1, 0x0a,
- 0x16, 0x24, 0x34, 0xe1, 0x25, 0xf1, 0x17, 0x18,
- 0x19, 0x1a, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x35,
- 0x36, 0x37, 0x38, 0x39, 0x3a, 0x43, 0x44, 0x45,
- 0x46, 0x47, 0x48, 0x49, 0x4a, 0x53, 0x54, 0x55,
- 0x56, 0x57, 0x58, 0x59, 0x5a, 0x63, 0x64, 0x65,
- 0x66, 0x67, 0x68, 0x69, 0x6a, 0x73, 0x74, 0x75,
- 0x76, 0x77, 0x78, 0x79, 0x7a, 0x82, 0x83, 0x84,
- 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x92, 0x93,
- 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0xa2,
- 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa,
- 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9,
- 0xba, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8,
- 0xc9, 0xca, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
- 0xd8, 0xd9, 0xda, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6,
- 0xe7, 0xe8, 0xe9, 0xea, 0xf2, 0xf3, 0xf4, 0xf5,
- 0xf6, 0xf7, 0xf8, 0xf9, 0xfa
- };
-
- /* write fixed Huffman tables */
- adr = 0x1d4;
- for (i = 0; i < sizeof(dht); ++i) {
- zr36060_write_8(zr, adr++, dht[i]);
- }
-}
-
-static void zr36060_set_jpg_APP(struct zoran *zr)
-{
- unsigned adr;
- int len, i;
- u32 reg;
-
-
- len = zr->params.APP_len;
- if (len < 0)
- len = 0;
- if (len > 60)
- len = 60;
-
- i = zr->params.APPn;
- if (i < 0)
- i = 0;
- if (i > 15)
- i = 15;
-
- reg = 0xffe0 + i; /* APPn marker */
- zr36060_write_16(zr, 0x380, reg);
-
- reg = len + 2; /* APPn len */
- zr36060_write_16(zr, 0x382, reg);
-
- /* write APPn data */
- adr = 0x384;
- for (i = 0; i < 60; i++) {
- zr36060_write_8(zr, adr++, (i < len ? zr->params.APP_data[i] : 0));
- }
-}
-
-static void zr36060_set_jpg_COM(struct zoran *zr)
-{
- unsigned adr;
- int len, i;
- u32 reg;
-
-
- len = zr->params.COM_len;
- if (len < 0)
- len = 0;
- if (len > 60)
- len = 60;
-
- reg = 0xfffe; /* COM marker */
- zr36060_write_16(zr, 0x3c0, reg);
-
- reg = len + 2; /* COM len */
- zr36060_write_16(zr, 0x3c2, reg);
-
- /* write COM data */
- adr = 0x3c4;
- for (i = 0; i < 60; i++) {
- zr36060_write_8(zr, adr++, (i < len ? zr->params.COM_data[i] : 0));
- }
-}
-
-static void zr36060_set_cap(struct zoran *zr, enum zoran_codec_mode mode)
-{
- unsigned i;
- u32 reg;
-
- zr36060_reset(zr);
- mdelay(10);
-
- reg = (0 << 7) /* Load=0 */
- |(1 << 0); /* SynRst=1 */
- zr36060_write_8(zr, 0x000, reg);
-
- zr36060_set_jpg(zr, mode);
- zr36060_set_video(zr, mode);
- zr36060_set_jpg_SOF(zr);
- zr36060_set_jpg_SOS(zr);
- zr36060_set_jpg_DRI(zr);
- zr36060_set_jpg_DQT(zr);
- zr36060_set_jpg_DHT(zr);
- zr36060_set_jpg_APP(zr);
- zr36060_set_jpg_COM(zr);
-
- reg = (1 << 7) /* Load=1 */
- |(0 << 0); /* SynRst=0 */
- zr36060_write_8(zr, 0x000, reg);
-
- /* wait for codec to unbusy */
- for (i = 0; i < 1000; ++i) {
- reg = zr36060_read_8(zr, 0x001);
- if ((reg & (1 << 7)) == 0) {
- DEBUG(printk(KERN_DEBUG "060: loaded, loops=%u\n", i));
- return;
- }
- udelay(1000);
- }
- printk(KERN_INFO "060: stuck busy, statux=%02x\n", reg);
-}
-
-static void zr36057_set_jpg(struct zoran *zr, enum zoran_codec_mode mode)
-{
- struct tvnorm *tvn;
- u32 reg;
- int i;
-
- tvn = &tvnorms[zr->params.norm];
-
- /* assert P_Reset */
- btwrite(0, ZR36057_JPC);
-
- /* 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;
- for (i = 0; i < BUZ_NUM_STAT_COM; ++i) {
- zr->stat_com[i] = 1; /* mark as unavailable to zr36057 */
- }
- for (i = 0; i < zr->jpg_nbufs; i++) {
- zr->jpg_gbuf[i].state = BUZ_STATE_USER; /* nothing going on */
- }
-
- /* 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->params.VFIFO_FB)
- reg |= ZR36057_JMC_VFIFO_FB;
- 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->params.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->params.img_y + tvn->VStart) << ZR36057_FVAP_NAY)
- | (zr->params.img_height << ZR36057_FVAP_PAY);
- btwrite(reg, ZR36057_FVAP);
-
- /* horizontal */
- btor(ZR36057_VFEHCR_HSPol, ZR36057_VFEHCR);
- reg = ((tvn->Wt - 100) << ZR36057_HSP_HsyncStart) | (tvn->Wt << ZR36057_HSP_LineTot);
- btwrite(reg, ZR36057_HSP);
- reg = ((zr->params.img_x + tvn->HStart) << ZR36057_FHAP_NAX)
- | (zr->params.img_width << ZR36057_FHAP_PAX);
- btwrite(reg, ZR36057_FHAP);
-
- /* field process parameters */
- if (zr->params.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 and FIFO threshold */
- reg = virt_to_bus(zr->stat_com);
- btwrite(reg, ZR36057_JCBA);
- reg = 0x50;
- btwrite(reg, ZR36057_JCFT);
-
- /* JPEG codec guest ID */
- reg = (1 << ZR36057_JCGI_JPEGuestID) | (0 << ZR36057_JCGI_JPEGuestReg);
- btwrite(reg, ZR36057_JCGI);
-
- /* Code transfer guest ID */
- reg = (0 << ZR36057_MCTCR_CodGuestID) | (3 << ZR36057_MCTCR_CodGuestReg);
- reg |= ZR36057_MCTCR_CFlush;
- btwrite(reg, ZR36057_MCTCR);
-
- /* deassert P_Reset */
- btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC);
-}
-
-static void zr36057_enable_jpg(struct zoran *zr, enum zoran_codec_mode mode)
-{
- static int zero = 0;
- static int one = 1;
-
- switch (mode) {
-
- case BUZ_MODE_MOTION_COMPRESS:
- zr36060_set_cap(zr, mode);
- zr36057_set_jpg(zr, mode);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_ENABLE_OUTPUT, &one);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEOENCODER, ENCODER_SET_INPUT, &zero);
-
- /* deassert P_Reset, assert Code transfer enable */
- btwrite(IRQ_MASK, ZR36057_ISR);
- btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
- break;
-
- case BUZ_MODE_MOTION_DECOMPRESS:
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_ENABLE_OUTPUT, &zero);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEOENCODER, ENCODER_SET_INPUT, &one);
- zr36060_set_cap(zr, mode);
- zr36057_set_jpg(zr, mode);
-
- /* deassert P_Reset, assert Code transfer enable */
- btwrite(IRQ_MASK, ZR36057_ISR);
- btand(~ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
- break;
-
- case BUZ_MODE_IDLE:
- default:
- /* shut down processing */
- btor(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
- btwrite(ZR36057_JPC_P_Reset, ZR36057_JPC);
- btand(~ZR36057_JMC_VFIFO_FB, ZR36057_JMC);
- btand(~ZR36057_JMC_SyncMstr, ZR36057_JMC);
- btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
- btwrite(0, ZR36057_ISR);
- zr36060_reset(zr);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_ENABLE_OUTPUT, &one);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEOENCODER, ENCODER_SET_INPUT, &zero);
- break;
-
- }
- zr->codec_mode = mode;
-}
-
-/*
- * Queue a MJPEG buffer for capture/playback
- */
-
-static int jpg_qbuf(struct zoran *zr, int frame, enum zoran_codec_mode mode)
-{
- unsigned long flags;
- int res;
-
- /* Check if buffers are allocated */
-
- if (!zr->jpg_buffers_allocated) {
- printk(KERN_ERR "%s: jpg_qbuf: buffers not yet allocated\n", zr->name);
- return -ENOMEM;
- }
- /* Does the user want to stop streaming? */
-
- if (frame < 0) {
- if (zr->codec_mode == mode) {
- zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
- return 0;
- } else {
- printk(KERN_ERR "%s: jpg_qbuf - stop streaming but not in streaming mode\n", zr->name);
- return -EINVAL;
- }
- }
- /* No grabbing outside the buffer range! */
-
- if (frame >= zr->jpg_nbufs) {
- printk(KERN_ERR "%s: jpg_qbuf: buffer %d out of range\n", zr->name, frame);
- return -EINVAL;
- }
- /* what is the codec mode right now? */
-
- if (zr->codec_mode == BUZ_MODE_IDLE) {
- /* Ok load up the zr36060 and go */
- zr36057_enable_jpg(zr, mode);
- } else if (zr->codec_mode != mode) {
- /* wrong codec mode active - invalid */
- printk(KERN_ERR "%s: jpg_qbuf - codec in wrong mode\n", zr->name);
- return -EINVAL;
- }
- spin_lock_irqsave(&zr->lock, flags);
-
- /* make sure a grab isn't going on currently with this buffer */
-
- switch (zr->jpg_gbuf[frame].state) {
-
- default:
- case BUZ_STATE_DMA:
- case BUZ_STATE_PEND:
- case BUZ_STATE_DONE:
- res = -EBUSY; /* what are you doing? */
- break;
-
- case BUZ_STATE_USER:
- /* since there is at least one unused buffer there's room for at least one more pend[] entry */
- zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = frame;
- zr->jpg_gbuf[frame].state = BUZ_STATE_PEND;
- zoran_feed_stat_com(zr);
- res = 0;
- break;
-
- }
-
- spin_unlock_irqrestore(&zr->lock, flags);
-
- /* Start the zr36060 when the first frame is queued */
- if (zr->jpg_que_head == 1) {
- btor(ZR36057_JMC_Go_en, ZR36057_JMC);
- btwrite(ZR36057_JPC_P_Reset | ZR36057_JPC_CodTrnsEn | ZR36057_JPC_Active, ZR36057_JPC);
- }
- return res;
-}
-
-/*
- * Sync on a MJPEG buffer
- */
-
-static int jpg_sync(struct zoran *zr, struct zoran_sync *bs)
-{
- unsigned long flags;
- int frame;
-
- if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
- zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
- return -EINVAL;
- }
- while (zr->jpg_que_tail == zr->jpg_dma_tail) {
- interruptible_sleep_on(&zr->jpg_capq);
- if (signal_pending(current))
- return -ERESTARTSYS;
- }
-
- spin_lock_irqsave(&zr->lock, flags);
-
- frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
-
- /* buffer should now be in BUZ_STATE_DONE */
-
- if (zr->jpg_gbuf[frame].state != BUZ_STATE_DONE)
- printk(KERN_ERR "%s: jpg_sync - internal error\n", zr->name);
-
- *bs = zr->jpg_gbuf[frame].bs;
- zr->jpg_gbuf[frame].state = BUZ_STATE_USER;
-
- spin_unlock_irqrestore(&zr->lock, flags);
-
- return 0;
-}
-
-/* when this is called the spinlock must be held */
-static 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->params.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->params.TmpDcm == 1) {
- /* fill 1 stat_com entry */
- i = zr->jpg_dma_head & BUZ_MASK_STAT_COM;
- zr->stat_com[i] = zr->jpg_gbuf[frame].frag_tab_bus;
- } else {
- /* fill 2 stat_com entries */
- i = (zr->jpg_dma_head & 1) * 2;
- zr->stat_com[i] = zr->jpg_gbuf[frame].frag_tab_bus;
- zr->stat_com[i + 1] = zr->jpg_gbuf[frame].frag_tab_bus;
- }
- zr->jpg_gbuf[frame].state = BUZ_STATE_DMA;
- zr->jpg_dma_head++;
-
- }
-}
-
-/* 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;
- int frame;
- struct zoran_gbuffer *gbuf;
-
- /* 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->params.TmpDcm == 1)
- i = zr->jpg_dma_tail & BUZ_MASK_STAT_COM;
- else
- i = (zr->jpg_dma_tail & 1) * 2 + 1;
-
- stat_com = zr->stat_com[i];
-
- if ((stat_com & 1) == 0) {
- return;
- }
- frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
- gbuf = &zr->jpg_gbuf[frame];
- get_fast_time(&gbuf->bs.timestamp);
-
- if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
- gbuf->bs.length = (stat_com & 0x7fffff) >> 1;
-
- /* update sequence number with the help of the counter in stat_com */
-
- seq = stat_com >> 24;
- dif = (seq - zr->jpg_seq_num) & 0xff;
- zr->jpg_seq_num += dif;
- } else {
- gbuf->bs.length = 0;
- }
- gbuf->bs.seq = zr->params.TmpDcm == 2 ? (zr->jpg_seq_num >> 1) : zr->jpg_seq_num;
- gbuf->state = BUZ_STATE_DONE;
-
- zr->jpg_dma_tail++;
- }
-}
-
-static void 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;
-
- spin_lock_irqsave(&zr->lock, flags);
- while (1) {
- /* get/clear interrupt status bits */
- stat = btread(ZR36057_ISR);
- astat = stat & IRQ_MASK;
- if (!astat) {
- break;
- }
- btwrite(astat, ZR36057_ISR);
- IDEBUG(printk(BUZ_DEBUG "-%u: astat %08x stat %08x\n", zr->id, astat, stat));
-
-#if (IRQ_MASK & ZR36057_ISR_GIRQ0)
- if (astat & ZR36057_ISR_GIRQ0) {
-
- /* 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)
- printk(KERN_WARNING "%s: BuzIRQ with SnapShot off ???\n", zr->name);
-
- 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_gbuf[zr->v4l_grab_frame].state = BUZ_STATE_DONE;
- zr->v4l_grab_frame = NO_GRAB_ACTIVE;
- zr->v4l_grab_seq++;
- 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_gbuf[frame].fbuffer_bus;
- btwrite(reg, ZR36057_VDTR);
- if (zr->video_interlace)
- reg += zr->gbpl;
- btwrite(reg, ZR36057_VDBR);
-
- /* video stride, status, and frame grab register */
-
-#ifdef XAWTV_HACK
- reg = (zr->gwidth > 720) ? ((zr->gwidth & ~3) - 720) * zr->gbpl / zr->gwidth : 0;
-#else
- reg = 0;
-#endif
- if (zr->video_interlace)
- reg += zr->gbpl;
- 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);
- }
- }
- }
-#endif /* (IRQ_MASK & ZR36057_ISR_GIRQ0) */
-
-#if (IRQ_MASK & ZR36057_ISR_GIRQ1)
- if (astat & ZR36057_ISR_GIRQ1) {
- unsigned csr = zr36060_read_8(zr, 0x001);
- unsigned isr = zr36060_read_8(zr, 0x008);
-
- IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_GIRQ1 60_code=%02x 60_intr=%02x\n",
- zr->name, csr, isr));
-
- btand(~ZR36057_ICR_GIRQ1, ZR36057_ICR);
- zoran_reap_stat_com(zr);
- zoran_feed_stat_com(zr);
- }
-#endif /* (IRQ_MASK & ZR36057_ISR_GIRQ1) */
-
-#if (IRQ_MASK & ZR36057_ISR_CodRepIRQ)
- if (astat & ZR36057_ISR_CodRepIRQ) {
- IDEBUG(printk(KERN_DEBUG "%s: ZR36057_ISR_CodRepIRQ\n", zr->name));
- 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)) {
- zoran_reap_stat_com(zr);
- zoran_feed_stat_com(zr);
- wake_up_interruptible(&zr->jpg_capq);
- }
-#endif /* (IRQ_MASK & ZR36057_ISR_JPEGRepIRQ) */
-
- count++;
- if (count > 10) {
- printk(KERN_WARNING "%s: irq loop %d\n", zr->name, count);
- if (count > 20) {
- btwrite(0, ZR36057_ICR);
- printk(KERN_ERR "%s: IRQ lockup, cleared int mask\n", zr->name);
- break;
- }
- }
- }
- spin_unlock_irqrestore(&zr->lock, flags);
-}
-
-/* Check a zoran_params struct for correctness, insert default params */
-
-static int zoran_check_params(struct zoran *zr, struct zoran_params *params)
-{
- int err = 0, err0 = 0;
-
- /* insert constant params */
-
- params->major_version = MAJOR_VERSION;
- params->minor_version = MINOR_VERSION;
-
- /* Check input and norm */
-
- if (params->input != 0 && params->input != 1) {
- err++;
- }
- if (params->norm != VIDEO_MODE_PAL && params->norm != VIDEO_MODE_NTSC) {
- err++;
- }
- /* Check decimation, set default values for decimation = 1, 2, 4 */
-
- switch (params->decimation) {
- case 1:
-
- params->HorDcm = 1;
- params->VerDcm = 1;
- params->TmpDcm = 1;
- params->field_per_buff = 2;
-
- params->img_x = 0;
- params->img_y = 0;
- params->img_width = 720;
- params->img_height = tvnorms[params->norm].Ha / 2;
- break;
-
- case 2:
-
- params->HorDcm = 2;
- params->VerDcm = 1;
- params->TmpDcm = 2;
- params->field_per_buff = 1;
-
- params->img_x = 8;
- params->img_y = 0;
- params->img_width = 704;
- params->img_height = tvnorms[params->norm].Ha / 2;
- break;
-
- case 4:
-
- params->HorDcm = 4;
- params->VerDcm = 2;
- params->TmpDcm = 2;
- params->field_per_buff = 1;
-
- params->img_x = 8;
- params->img_y = 0;
- params->img_width = 704;
- params->img_height = tvnorms[params->norm].Ha / 2;
- break;
-
- case 0:
-
- /* We have to check the data the user has set */
-
- if (params->HorDcm != 1 && params->HorDcm != 2 && params->HorDcm != 4)
- err0++;
- if (params->VerDcm != 1 && params->VerDcm != 2)
- err0++;
- if (params->TmpDcm != 1 && params->TmpDcm != 2)
- err0++;
- if (params->field_per_buff != 1 && params->field_per_buff != 2)
- err0++;
-
- if (params->img_x < 0)
- err0++;
- if (params->img_y < 0)
- err0++;
- if (params->img_width < 0)
- err0++;
- if (params->img_height < 0)
- err0++;
- if (params->img_x + params->img_width > 720)
- err0++;
- if (params->img_y + params->img_height > tvnorms[params->norm].Ha / 2)
- err0++;
- if (params->img_width % (16 * params->HorDcm) != 0)
- err0++;
- if (params->img_height % (8 * params->VerDcm) != 0)
- err0++;
-
- if (err0) {
- err++;
- }
- break;
-
- default:
- err++;
- break;
- }
-
- if (params->quality > 100)
- params->quality = 100;
- if (params->quality < 5)
- params->quality = 5;
-
- if (params->APPn < 0)
- params->APPn = 0;
- if (params->APPn > 15)
- params->APPn = 15;
- if (params->APP_len < 0)
- params->APP_len = 0;
- if (params->APP_len > 60)
- params->APP_len = 60;
- if (params->COM_len < 0)
- params->COM_len = 0;
- if (params->COM_len > 60)
- params->COM_len = 60;
-
- if (err)
- return -EINVAL;
-
- return 0;
-
-}
-static void zoran_open_init_params(struct zoran *zr)
-{
- int i;
-
- /* Per default, map the V4L Buffers */
-
- zr->map_mjpeg_buffers = 0;
-
- /* User must explicitly set a window */
-
- zr->window_set = 0;
-
- zr->window.x = 0;
- zr->window.y = 0;
- zr->window.width = 0;
- zr->window.height = 0;
- zr->window.chromakey = 0;
- zr->window.flags = 0;
- zr->window.clips = NULL;
- zr->window.clipcount = 0;
-
- zr->video_interlace = 0;
-
- zr->v4l_memgrab_active = 0;
- zr->v4l_overlay_active = 0;
-
- zr->v4l_grab_frame = NO_GRAB_ACTIVE;
- zr->v4l_grab_seq = 0;
-
- zr->gwidth = 0;
- zr->gheight = 0;
- zr->gformat = 0;
- zr->gbpl = 0;
-
- /* DMA ring stuff for V4L */
-
- zr->v4l_pend_tail = 0;
- zr->v4l_pend_head = 0;
- for (i = 0; i < v4l_nbufs; i++) {
- zr->v4l_gbuf[i].state = BUZ_STATE_USER; /* nothing going on */
- }
-
- /* Set necessary params and call zoran_check_params to set the defaults */
-
- zr->params.decimation = 1;
-
- zr->params.quality = 50; /* default compression factor 8 */
- zr->params.odd_even = 1;
-
- zr->params.APPn = 0;
- zr->params.APP_len = 0; /* No APPn marker */
- for (i = 0; i < 60; i++)
- zr->params.APP_data[i] = 0;
-
- zr->params.COM_len = 0; /* No COM marker */
- for (i = 0; i < 60; i++)
- zr->params.COM_data[i] = 0;
-
- zr->params.VFIFO_FB = 0;
-
- memset(zr->params.reserved, 0, sizeof(zr->params.reserved));
-
- zr->params.jpeg_markers = JPEG_MARKER_DHT | JPEG_MARKER_DQT;
-
- i = zoran_check_params(zr, &zr->params);
- if (i)
- printk(KERN_ERR "%s: zoran_open_init_params internal error\n", zr->name);
-}
-
-/*
- * Open a buz card. Right now the flags stuff is just playing
- */
-
-static int zoran_open(struct video_device *dev, int flags)
-{
- struct zoran *zr = (struct zoran *) dev;
-
- DEBUG(printk(KERN_INFO ": zoran_open\n"));
-
- switch (flags) {
-
- case 0:
- if (zr->user)
- return -EBUSY;
- zr->user++;
-
- if (v4l_fbuffer_alloc(zr) < 0) {
- zr->user--;
- return -ENOMEM;
- }
- /* default setup */
-
- zoran_open_init_params(zr);
-
- zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
-
- btwrite(IRQ_MASK, ZR36057_ISR); // Clears interrupts
-
- btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
-
- break;
-
- default:
- return -EBUSY;
-
- }
- MOD_INC_USE_COUNT;
- return 0;
-}
-
-static void zoran_close(struct video_device *dev)
-{
- struct zoran *zr = (struct zoran *) dev;
-
- DEBUG(printk(KERN_INFO ": zoran_close\n"));
-
- /* disable interrupts */
- btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
-
- /* wake up sleeping beauties */
- wake_up_interruptible(&zr->v4l_capq);
- wake_up_interruptible(&zr->jpg_capq);
-
- zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
- zr36057_set_memgrab(zr, 0);
- if (zr->v4l_overlay_active)
- zr36057_overlay(zr, 0);
-
- zr->user--;
-
- v4l_fbuffer_free(zr);
- jpg_fbuffer_free(zr);
- zr->jpg_nbufs = 0;
-
- MOD_DEC_USE_COUNT;
- DEBUG(printk(KERN_INFO ": zoran_close done\n"));
-}
-
-
-static long zoran_read(struct video_device *dev, char *buf, unsigned long count, int nonblock)
-{
- return -EINVAL;
-}
-
-static long zoran_write(struct video_device *dev, const char *buf, unsigned long count, int nonblock)
-{
- return -EINVAL;
-}
-
-/*
- * ioctl routine
- */
-
-
-static int zoran_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
-{
- struct zoran *zr = (struct zoran *) dev;
-
- switch (cmd) {
-
- case VIDIOCGCAP:
- {
- struct video_capability b;
- IOCTL_DEBUG(printk("buz ioctl VIDIOCGCAP\n"));
- strncpy(b.name, zr->video_dev.name, sizeof(b.name));
- b.type = VID_TYPE_CAPTURE |
- VID_TYPE_OVERLAY |
- VID_TYPE_CLIPPING |
- VID_TYPE_FRAMERAM |
- VID_TYPE_SCALES;
- /* theoretically we could also flag VID_TYPE_SUBCAPTURE
- but this is not even implemented in the BTTV driver */
-
- b.channels = 2; /* composite, svhs */
- b.audios = 0;
- b.maxwidth = BUZ_MAX_WIDTH;
- b.maxheight = BUZ_MAX_HEIGHT;
- b.minwidth = BUZ_MIN_WIDTH;
- b.minheight = BUZ_MIN_HEIGHT;
- if (copy_to_user(arg, &b, sizeof(b))) {
- return -EFAULT;
- }
- return 0;
- }
-
- case VIDIOCGCHAN:
- {
- struct video_channel v;
-
- if (copy_from_user(&v, arg, sizeof(v))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl VIDIOCGCHAN for channel %d\n", v.channel));
- switch (v.channel) {
- case 0:
- strcpy(v.name, "Composite");
- break;
- case 1:
- strcpy(v.name, "SVHS");
- break;
- default:
- return -EINVAL;
- }
- v.tuners = 0;
- v.flags = 0;
- v.type = VIDEO_TYPE_CAMERA;
- v.norm = zr->params.norm;
- if (copy_to_user(arg, &v, sizeof(v))) {
- return -EFAULT;
- }
- return 0;
- }
-
- /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
-
- * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
- * ^^^^^^^
- * The famos BTTV driver has it implemented with a struct video_channel argument
- * and we follow it for compatibility reasons
- *
- * BTW: this is the only way the user can set the norm!
- */
-
- case VIDIOCSCHAN:
- {
- struct video_channel v;
- int input;
- int on, res;
-
- if (copy_from_user(&v, arg, sizeof(v))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl VIDIOCSCHAN: channel=%d, norm=%d\n", v.channel, v.norm));
- switch (v.channel) {
- case 0:
- input = 3;
- break;
- case 1:
- input = 7;
- break;
- default:
- return -EINVAL;
- }
-
- if (v.norm != VIDEO_MODE_PAL
- && v.norm != VIDEO_MODE_NTSC) {
- return -EINVAL;
- }
- zr->params.norm = v.norm;
- zr->params.input = v.channel;
-
- /* We switch overlay off and on since a change in the norm
- needs different VFE settings */
-
- on = zr->v4l_overlay_active && !zr->v4l_memgrab_active;
- if (on)
- zr36057_overlay(zr, 0);
-
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &input);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &zr->params.norm);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEOENCODER, ENCODER_SET_NORM, &zr->params.norm);
-
- if (on)
- zr36057_overlay(zr, 1);
-
- /* Make sure the changes come into effect */
- res = wait_grab_pending(zr);
- if (res)
- return res;
-
- return 0;
- }
-
- case VIDIOCGTUNER:
- case VIDIOCSTUNER:
- return -EINVAL;
-
- case VIDIOCGPICT:
- {
- struct video_picture p = zr->picture;
-
- IOCTL_DEBUG(printk("buz ioctl VIDIOCGPICT\n"));
- p.depth = zr->buffer.depth;
- switch (zr->buffer.depth) {
- case 15:
- p.palette = VIDEO_PALETTE_RGB555;
- break;
-
- case 16:
- p.palette = VIDEO_PALETTE_RGB565;
- break;
-
- case 24:
- p.palette = VIDEO_PALETTE_RGB24;
- break;
-
- case 32:
- p.palette = VIDEO_PALETTE_RGB32;
- break;
- }
-
- if (copy_to_user(arg, &p, sizeof(p))) {
- return -EFAULT;
- }
- return 0;
- }
-
- case VIDIOCSPICT:
- {
- struct video_picture p;
-
- if (copy_from_user(&p, arg, sizeof(p))) {
- return -EFAULT;
- }
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_PICTURE, &p);
- IOCTL_DEBUG(printk("buz ioctl VIDIOCSPICT bri=%d hue=%d col=%d con=%d dep=%d pal=%d\n",
- p.brightness, p.hue, p.colour, p.contrast, p.depth, p.palette));
- /* The depth and palette values have no meaning to us,
- should we return -EINVAL if they don't fit ? */
- zr->picture = p;
- return 0;
- }
-
- case VIDIOCCAPTURE:
- {
- int v, res;
-
- if (copy_from_user(&v, arg, sizeof(v))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl VIDIOCCAPTURE: %d\n", v));
- /* If there is nothing to do, return immediatly */
-
- if ((v && zr->v4l_overlay_active) || (!v && !zr->v4l_overlay_active))
- return 0;
-
- if (v == 0) {
- zr->v4l_overlay_active = 0;
- if (!zr->v4l_memgrab_active)
- zr36057_overlay(zr, 0);
- /* When a grab is running, the video simply won't be switched on any more */
- } else {
- if (!zr->buffer_set || !zr->window_set) {
- return -EINVAL;
- }
- zr->v4l_overlay_active = 1;
- if (!zr->v4l_memgrab_active)
- zr36057_overlay(zr, 1);
- /* When a grab is running, the video will be switched on when grab is finished */
- }
- /* Make sure the changes come into effect */
- res = wait_grab_pending(zr);
- if (res)
- return res;
- return 0;
- }
-
- case VIDIOCGWIN:
- {
- IOCTL_DEBUG(printk("buz ioctl VIDIOCGWIN\n"));
- if (copy_to_user(arg, &zr->window, sizeof(zr->window))) {
- return -EFAULT;
- }
- return 0;
- }
-
- case VIDIOCSWIN:
- {
- struct video_clip *vcp;
- struct video_window vw;
- int on, end, res;
-
- if (copy_from_user(&vw, arg, sizeof(vw))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl VIDIOCSWIN: x=%d y=%d w=%d h=%d clipcount=%d\n", vw.x, vw.y, vw.width, vw.height, vw.clipcount));
- if (!zr->buffer_set) {
- return -EINVAL;
- }
- /*
- * The video front end needs 4-byte alinged line sizes, we correct that
- * silently here if necessary
- */
-
- if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
- end = (vw.x + vw.width) & ~1; /* round down */
- vw.x = (vw.x + 1) & ~1; /* round up */
- vw.width = end - vw.x;
- }
- if (zr->buffer.depth == 24) {
- end = (vw.x + vw.width) & ~3; /* round down */
- vw.x = (vw.x + 3) & ~3; /* round up */
- vw.width = end - vw.x;
- }
-#if 0
- // At least xawtv seems to care about the following - just leave it away
- /*
- * Also corrected silently (as long as window fits at all):
- * video not fitting the screen
- */
-#if 0
- if (vw.x < 0 || vw.y < 0 || vw.x + vw.width > zr->buffer.width ||
- vw.y + vw.height > zr->buffer.height) {
- printk(BUZ_ERR ": VIDIOCSWIN: window does not fit frame buffer: %dx%d+%d*%d\n",
- vw.width, vw.height, vw.x, vw.y);
- return -EINVAL;
- }
-#else
- if (vw.x < 0)
- vw.x = 0;
- if (vw.y < 0)
- vw.y = 0;
- if (vw.x + vw.width > zr->buffer.width)
- vw.width = zr->buffer.width - vw.x;
- if (vw.y + vw.height > zr->buffer.height)
- vw.height = zr->buffer.height - vw.y;
-#endif
-#endif
-
- /* Check for vaild parameters */
- if (vw.width < BUZ_MIN_WIDTH || vw.height < BUZ_MIN_HEIGHT ||
- vw.width > BUZ_MAX_WIDTH || vw.height > BUZ_MAX_HEIGHT) {
- return -EINVAL;
- }
-#ifdef XAWTV_HACK
- if (vw.width > 720)
- vw.width = 720;
-#endif
-
- zr->window.x = vw.x;
- zr->window.y = vw.y;
- zr->window.width = vw.width;
- zr->window.height = vw.height;
- zr->window.chromakey = 0;
- zr->window.flags = 0; // RJ: Is this intended for interlace on/off ?
-
- zr->window.clips = NULL;
- zr->window.clipcount = vw.clipcount;
-
- /*
- * If an overlay is running, we have to switch it off
- * and switch it on again in order to get the new settings in effect.
- *
- * We also want to avoid that the overlay mask is written
- * when an overlay is running.
- */
-
- on = zr->v4l_overlay_active && !zr->v4l_memgrab_active;
- if (on)
- zr36057_overlay(zr, 0);
-
- /*
- * Write the overlay mask if clips are wanted.
- */
- if (vw.clipcount) {
- vcp = vmalloc(sizeof(struct video_clip) * (vw.clipcount + 4));
- if (vcp == NULL) {
- return -ENOMEM;
- }
- if (copy_from_user(vcp, vw.clips, sizeof(struct video_clip) * vw.clipcount)) {
- vfree(vcp);
- return -EFAULT;
- }
- write_overlay_mask(zr, vcp, vw.clipcount);
- vfree(vcp);
- }
- if (on)
- zr36057_overlay(zr, 1);
- zr->window_set = 1;
-
- /* Make sure the changes come into effect */
- res = wait_grab_pending(zr);
- if (res)
- return res;
-
- return 0;
- }
-
- case VIDIOCGFBUF:
- {
- IOCTL_DEBUG(printk("buz ioctl VIDIOCGFBUF\n"));
- if (copy_to_user(arg, &zr->buffer, sizeof(zr->buffer))) {
- return -EFAULT;
- }
- return 0;
- }
-
- case VIDIOCSFBUF:
- {
- struct video_buffer v;
-
- if (!capable(CAP_SYS_ADMIN)
- || !capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- if (copy_from_user(&v, arg, sizeof(v)))
- return -EFAULT;
-
- IOCTL_DEBUG(printk("buz ioctl VIDIOCSFBUF: base=0x%x w=%d h=%d depth=%d bpl=%d\n", (u32) v.base, v.width, v.height, v.depth, v.bytesperline));
- if (zr->v4l_overlay_active) {
- /* Has the user gotten crazy ... ? */
- return -EINVAL;
- }
- if (v.depth != 15
- && v.depth != 16
- && v.depth != 24
- && v.depth != 32) {
- return -EINVAL;
- }
- if (v.height <= 0 || v.width <= 0 || v.bytesperline <= 0) {
- return -EINVAL;
- }
- if (v.bytesperline & 3) {
- return -EINVAL;
- }
- if (v.base) {
- zr->buffer.base = (void *) ((unsigned long) v.base & ~3);
- }
- zr->buffer.height = v.height;
- zr->buffer.width = v.width;
- zr->buffer.depth = v.depth;
- zr->buffer.bytesperline = v.bytesperline;
-
- if (zr->buffer.base)
- zr->buffer_set = 1;
- zr->window_set = 0; /* The user should set new window parameters */
- return 0;
- }
-
- /* RJ: what is VIDIOCKEY intended to do ??? */
-
- case VIDIOCGFREQ:
- case VIDIOCSFREQ:
- case VIDIOCGAUDIO:
- case VIDIOCSAUDIO:
- return -EINVAL;
-
- case VIDIOCSYNC:
- {
- int v;
-
- if (copy_from_user(&v, arg, sizeof(v))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl VIDIOCSYNC %d\n", v));
- return v4l_sync(zr, v);
- }
-
- case VIDIOCMCAPTURE:
- {
- struct video_mmap vm;
-
- if (copy_from_user((void *) &vm, (void *) arg, sizeof(vm))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl VIDIOCMCAPTURE frame=%d geom=%dx%d fmt=%d\n",
- vm.frame, vm.height, vm.width, vm.format));
- return v4l_grab(zr, &vm);
- }
-
- case VIDIOCGMBUF:
- {
- struct video_mbuf vm;
- int i;
-
- IOCTL_DEBUG(printk("buz ioctl VIDIOCGMBUF\n"));
-
- vm.size = v4l_nbufs * v4l_bufsize;
- vm.frames = v4l_nbufs;
- for (i = 0; i < v4l_nbufs; i++) {
- vm.offsets[i] = i * v4l_bufsize;
- }
-
- /* The next mmap will map the V4L buffers */
- zr->map_mjpeg_buffers = 0;
-
- if (copy_to_user(arg, &vm, sizeof(vm))) {
- return -EFAULT;
- }
- return 0;
- }
-
- case VIDIOCGUNIT:
- {
- struct video_unit vu;
-
- IOCTL_DEBUG(printk("buz ioctl VIDIOCGUNIT\n"));
- vu.video = zr->video_dev.minor;
- vu.vbi = VIDEO_NO_UNIT;
- vu.radio = VIDEO_NO_UNIT;
- vu.audio = VIDEO_NO_UNIT;
- vu.teletext = VIDEO_NO_UNIT;
- if (copy_to_user(arg, &vu, sizeof(vu)))
- return -EFAULT;
- return 0;
- }
-
- /*
- * RJ: In principal we could support subcaptures for V4L grabbing.
- * Not even the famous BTTV driver has them, however.
- * If there should be a strong demand, one could consider
- * to implement them.
- */
- case VIDIOCGCAPTURE:
- case VIDIOCSCAPTURE:
- return -EINVAL;
-
- case BUZIOC_G_PARAMS:
- {
- IOCTL_DEBUG(printk("buz ioctl BUZIOC_G_PARAMS\n"));
- if (copy_to_user(arg, &(zr->params), sizeof(zr->params)))
- return -EFAULT;
- return 0;
- }
-
- case BUZIOC_S_PARAMS:
- {
- struct zoran_params bp;
- int input, on;
-
- if (zr->codec_mode != BUZ_MODE_IDLE) {
- return -EINVAL;
- }
- if (copy_from_user(&bp, arg, sizeof(bp))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl BUZIOC_S_PARAMS\n"));
-
- /* Check the params first before overwriting our internal values */
-
- if (zoran_check_params(zr, &bp))
- return -EINVAL;
-
- zr->params = bp;
-
- /* Make changes of input and norm go into effect immediatly */
-
- /* We switch overlay off and on since a change in the norm
- needs different VFE settings */
-
- on = zr->v4l_overlay_active && !zr->v4l_memgrab_active;
- if (on)
- zr36057_overlay(zr, 0);
-
- input = zr->params.input == 0 ? 3 : 7;
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &input);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &zr->params.norm);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEOENCODER, ENCODER_SET_NORM, &zr->params.norm);
-
- if (on)
- zr36057_overlay(zr, 1);
-
- if (copy_to_user(arg, &bp, sizeof(bp))) {
- return -EFAULT;
- }
- return 0;
- }
-
- case BUZIOC_REQBUFS:
- {
- struct zoran_requestbuffers br;
-
- if (zr->jpg_buffers_allocated) {
- return -EINVAL;
- }
- if (copy_from_user(&br, arg, sizeof(br))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl BUZIOC_REQBUFS count = %lu size=%lu\n",
- br.count, br.size));
- /* Enforce reasonable lower and upper limits */
- if (br.count < 4)
- br.count = 4; /* Could be choosen smaller */
- if (br.count > BUZ_MAX_FRAME)
- br.count = BUZ_MAX_FRAME;
- br.size = PAGE_ALIGN(br.size);
- if (br.size < 8192)
- br.size = 8192; /* Arbitrary */
- /* br.size is limited by 1 page for the stat_com tables to a Maximum of 2 MB */
- if (br.size > (512 * 1024))
- br.size = (512 * 1024); /* 512 K should be enough */
- if (zr->need_contiguous && br.size > MAX_KMALLOC_MEM)
- br.size = MAX_KMALLOC_MEM;
-
- zr->jpg_nbufs = br.count;
- zr->jpg_bufsize = br.size;
-
- if (jpg_fbuffer_alloc(zr))
- return -ENOMEM;
-
- /* The next mmap will map the MJPEG buffers */
- zr->map_mjpeg_buffers = 1;
-
- if (copy_to_user(arg, &br, sizeof(br))) {
- return -EFAULT;
- }
- return 0;
- }
-
- case BUZIOC_QBUF_CAPT:
- {
- int nb;
-
- if (copy_from_user((void *) &nb, (void *) arg, sizeof(int))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl BUZIOC_QBUF_CAPT %d\n", nb));
- return jpg_qbuf(zr, nb, BUZ_MODE_MOTION_COMPRESS);
- }
-
- case BUZIOC_QBUF_PLAY:
- {
- int nb;
-
- if (copy_from_user((void *) &nb, (void *) arg, sizeof(int))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl BUZIOC_QBUF_PLAY %d\n", nb));
- return jpg_qbuf(zr, nb, BUZ_MODE_MOTION_DECOMPRESS);
- }
-
- case BUZIOC_SYNC:
- {
- struct zoran_sync bs;
- int res;
-
- IOCTL_DEBUG(printk("buz ioctl BUZIOC_SYNC\n"));
- res = jpg_sync(zr, &bs);
- if (copy_to_user(arg, &bs, sizeof(bs))) {
- return -EFAULT;
- }
- return res;
- }
-
- case BUZIOC_G_STATUS:
- {
- struct zoran_status bs;
- int norm, input, status;
-
- if (zr->codec_mode != BUZ_MODE_IDLE) {
- return -EINVAL;
- }
- if (copy_from_user(&bs, arg, sizeof(bs))) {
- return -EFAULT;
- }
- IOCTL_DEBUG(printk("buz ioctl BUZIOC_G_STATUS\n"));
- switch (bs.input) {
- case 0:
- input = 3;
- break;
- case 1:
- input = 7;
- break;
- default:
- return -EINVAL;
- }
-
- /* Set video norm to VIDEO_MODE_AUTO */
-
- norm = VIDEO_MODE_AUTO;
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &input);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &norm);
-
- /* sleep 1 second */
-
- schedule_timeout(HZ);
-
- /* Get status of video decoder */
-
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_GET_STATUS, &status);
- bs.signal = (status & DECODER_STATUS_GOOD) ? 1 : 0;
- bs.norm = (status & DECODER_STATUS_NTSC) ? VIDEO_MODE_NTSC : VIDEO_MODE_PAL;
- bs.color = (status & DECODER_STATUS_COLOR) ? 1 : 0;
-
- /* restore previous input and norm */
- input = zr->params.input == 0 ? 3 : 7;
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &input);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &zr->params.norm);
-
- if (copy_to_user(arg, &bs, sizeof(bs))) {
- return -EFAULT;
- }
- return 0;
- }
-
- default:
- return -ENOIOCTLCMD;
-
- }
- return 0;
-}
-
-
-/*
- * This maps the buffers to user space.
- *
- * Depending on the state of zr->map_mjpeg_buffers
- * the V4L or the MJPEG buffers are mapped
- *
- */
-
-static int zoran_mmap(struct video_device *dev, const char *adr, unsigned long size)
-{
- struct zoran *zr = (struct zoran *) dev;
- unsigned long start = (unsigned long) adr;
- unsigned long page, pos, todo, fraglen;
- int i, j;
-
- if (zr->map_mjpeg_buffers) {
- /* Map the MJPEG buffers */
-
- if (!zr->jpg_buffers_allocated) {
- return -ENOMEM;
- }
- if (size > zr->jpg_nbufs * zr->jpg_bufsize) {
- return -EINVAL;
- }
-
- for (i = 0; i < zr->jpg_nbufs; i++) {
- for (j = 0; j < zr->jpg_bufsize / PAGE_SIZE; j++) {
- fraglen = (zr->jpg_gbuf[i].frag_tab[2 * j + 1] & ~1) << 1;
- todo = size;
- if (todo > fraglen)
- todo = fraglen;
- pos = (unsigned long) zr->jpg_gbuf[i].frag_tab[2 * j];
- page = virt_to_phys(bus_to_virt(pos)); /* should just be pos on i386 */
- if (remap_page_range(start, page, todo, PAGE_SHARED)) {
- printk(KERN_ERR "%s: zoran_mmap(V4L): remap_page_range failed\n", zr->name);
- return -EAGAIN;
- }
- size -= todo;
- start += todo;
- if (size == 0)
- break;
- if (zr->jpg_gbuf[i].frag_tab[2 * j + 1] & 1)
- break; /* was last fragment */
- }
- if (size == 0)
- break;
- }
- } else {
- /* Map the V4L buffers */
-
- if (size > v4l_nbufs * v4l_bufsize) {
- return -EINVAL;
- }
-
- for (i = 0; i < v4l_nbufs; i++) {
- todo = size;
- if (todo > v4l_bufsize)
- todo = v4l_bufsize;
- page = zr->v4l_gbuf[i].fbuffer_phys;
- DEBUG(printk("V4L remap page range %d 0x%x %d to 0x%x\n", i, page, todo, start));
- if (remap_page_range(start, page, todo, PAGE_SHARED)) {
- printk(KERN_ERR "%s: zoran_mmap(V4L): remap_page_range failed\n", zr->name);
- return -EAGAIN;
- }
- size -= todo;
- start += todo;
- if (size == 0)
- break;
- }
- }
- return 0;
-}
-
-static int zoran_init_done(struct video_device *dev)
-{
- return 0;
-}
-
-static struct video_device zoran_template =
-{
- BUZ_NAME,
- VID_TYPE_CAPTURE | VID_TYPE_OVERLAY | VID_TYPE_CLIPPING | VID_TYPE_FRAMERAM |
- VID_TYPE_SCALES | VID_TYPE_SUBCAPTURE,
- VID_HARDWARE_ZR36067,
- zoran_open,
- zoran_close,
- zoran_read,
- zoran_write,
- NULL,
- zoran_ioctl,
- zoran_mmap,
- zoran_init_done,
- NULL,
- 0,
- 0
-};
-
-static int zr36057_init(int i)
-{
- struct zoran *zr = &zoran[i];
- unsigned long mem;
- unsigned mem_needed;
- int j;
- int rev;
-
- /* reset zr36057 */
- btwrite(0, ZR36057_SPGPPCR);
- mdelay(10);
-
- /* default setup of all parameters which will persist beetween opens */
-
- zr->user = 0;
-
- init_waitqueue_head(&zr->v4l_capq);
- init_waitqueue_head(&zr->jpg_capq);
-
- zr->map_mjpeg_buffers = 0; /* Map V4L buffers by default */
-
- zr->jpg_nbufs = 0;
- zr->jpg_bufsize = 0;
- zr->jpg_buffers_allocated = 0;
-
- zr->buffer_set = 0; /* Flag if frame buffer has been set */
- zr->buffer.base = (void *) vidmem;
- zr->buffer.width = 0;
- zr->buffer.height = 0;
- zr->buffer.depth = 0;
- zr->buffer.bytesperline = 0;
-
- zr->params.norm = default_norm ? 1 : 0; /* Avoid nonsense settings from user */
- zr->params.input = default_input ? 1 : 0; /* Avoid nonsense settings from user */
- zr->video_interlace = 0;
-
- /* Should the following be reset at every open ? */
-
- zr->picture.colour = 32768;
- zr->picture.brightness = 32768;
- zr->picture.hue = 32768;
- zr->picture.contrast = 32768;
- zr->picture.whiteness = 0;
- zr->picture.depth = 0;
- zr->picture.palette = 0;
-
- for (j = 0; j < VIDEO_MAX_FRAME; j++) {
- zr->v4l_gbuf[i].fbuffer = 0;
- zr->v4l_gbuf[i].fbuffer_phys = 0;
- zr->v4l_gbuf[i].fbuffer_bus = 0;
- }
-
- zr->stat_com = 0;
-
- /* default setup (will be repeated at every open) */
-
- zoran_open_init_params(zr);
-
- /* allocate memory *before* doing anything to the hardware in case allocation fails */
-
- /* STAT_COM table and overlay mask */
-
- mem_needed = (BUZ_NUM_STAT_COM + ((BUZ_MAX_WIDTH + 31) / 32) * BUZ_MAX_HEIGHT) * 4;
- mem = (unsigned long) kmalloc(mem_needed, GFP_KERNEL);
- if (!mem) {
- return -ENOMEM;
- }
- memset((void *) mem, 0, mem_needed);
-
- zr->stat_com = (u32 *) mem;
- for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
- zr->stat_com[j] = 1; /* mark as unavailable to zr36057 */
- }
- zr->overlay_mask = (u32 *) (mem + BUZ_NUM_STAT_COM * 4);
-
- /* Initialize zr->jpg_gbuf */
-
- for (j = 0; j < BUZ_MAX_FRAME; j++) {
- zr->jpg_gbuf[j].frag_tab = 0;
- zr->jpg_gbuf[j].frag_tab_bus = 0;
- zr->jpg_gbuf[j].state = BUZ_STATE_USER;
- zr->jpg_gbuf[j].bs.frame = j;
- }
-
- /* take zr36057 out of reset now */
- btwrite(ZR36057_SPGPPCR_SoftReset, ZR36057_SPGPPCR);
- mdelay(10);
-
- /* stop all DMA processes */
- btwrite(ZR36057_MCTCR_CFlush, ZR36057_MCTCR);
- btand(~ZR36057_VDCR_VidEn, ZR36057_VDCR);
- /* assert P_Reset */
- btwrite(0, ZR36057_JPC);
-
- switch(zr->board)
- {
- case BOARD_BUZ:
-
- /* set up GPIO direction */
- btwrite(ZR36057_SPGPPCR_SoftReset | 0, ZR36057_SPGPPCR);
-
- /* Set up guest bus timing - Guests 0..3 Tdur=12, Trec=3 */
- btwrite((GPIO_MASK << 24) | 0x8888, ZR36057_GPPGCR1);
- mdelay(10);
-
- /* reset video decoder */
-
- GPIO(zr, 0, 0);
- mdelay(10);
- GPIO(zr, 0, 1);
- mdelay(10);
-
- /* reset JPEG codec */
- zr36060_sleep(zr, 0);
- mdelay(10);
- zr36060_reset(zr);
- mdelay(10);
-
- /* display codec revision */
- if ((rev=zr36060_read_8(zr, 0x022)) == 0x33) {
- printk(KERN_INFO "%s: Zoran ZR36060 (rev %d)\n",
- zr->name, zr36060_read_8(zr, 0x023));
- } else {
- printk(KERN_ERR "%s: Zoran ZR36060 not found (Rev=%d)\n", zr->name, rev);
- kfree((void *) zr->stat_com);
- return -1;
- }
- break;
-
- case BOARD_LML33:
-// btwrite(btread(ZR36057_SPGPPCR)&~ZR36057_SPGPPCR_SoftReset , ZR36057_SPGPPCR);
-// udelay(100);
-// btwrite(btread(ZR36057_SPGPPCR)|ZR36057_SPGPPCR_SoftReset , ZR36057_SPGPPCR);
-// udelay(1000);
-
- /*
- * Set up the GPIO direction
- */
- btwrite(btread(ZR36057_SPGPPCR_SoftReset)|0 , ZR36057_SPGPPCR);
- /* Set up guest bus timing - Guests 0..2 Tdur=12, Trec=3 */
- btwrite(0xFF00F888, ZR36057_GPPGCR1);
- mdelay(10);
- GPIO(zr, 5, 0); /* Analog video bypass */
- udelay(3000);
- GPIO(zr, 0, 0); /* Reset 819 */
- udelay(3000);
- GPIO(zr, 0, 1); /* 819 back */
- udelay(3000);
- /* reset JPEG codec */
- zr36060_sleep(zr, 0);
- udelay(3000);
- zr36060_reset(zr);
- udelay(3000);
-
- /* display codec revision */
- if ((rev=zr36060_read_8(zr, 0x022)) == 0x33) {
- printk(KERN_INFO "%s: Zoran ZR36060 (rev %d)\n",
- zr->name, zr36060_read_8(zr, 0x023));
- } else {
- printk(KERN_ERR "%s: Zoran ZR36060 not found (rev=%d)\n", zr->name, rev);
- kfree((void *) zr->stat_com);
- return -1;
- }
- break;
- }
- /* i2c */
- memcpy(&zr->i2c, &zoran_i2c_bus_template, sizeof(struct i2c_bus));
- sprintf(zr->i2c.name, "zoran%u", zr->id);
- zr->i2c.data = zr;
- if (i2c_register_bus(&zr->i2c) < 0) {
- kfree((void *) zr->stat_com);
- return -1;
- }
- /*
- * Now add the template and register the device unit.
- */
- memcpy(&zr->video_dev, &zoran_template, sizeof(zoran_template));
- sprintf(zr->video_dev.name, "zoran%u", zr->id);
- if (video_register_device(&zr->video_dev, VFL_TYPE_GRABBER) < 0) {
- i2c_unregister_bus(&zr->i2c);
- kfree((void *) zr->stat_com);
- return -1;
- }
- /* toggle JPEG codec sleep to sync PLL */
- zr36060_sleep(zr, 1);
- mdelay(10);
- zr36060_sleep(zr, 0);
- mdelay(10);
-
- /* Enable bus-mastering */
- pci_set_master(zr->pci_dev);
-
- j = zr->params.input == 0 ? 3 : 7;
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_INPUT, &j);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEODECODER, DECODER_SET_NORM, &zr->params.norm);
- i2c_control_device(&zr->i2c, I2C_DRIVERID_VIDEOENCODER, ENCODER_SET_NORM, &zr->params.norm);
-
- /* set individual interrupt enables (without GIRQ0)
- but don't global enable until zoran_open() */
-
- btwrite(IRQ_MASK & ~ZR36057_ISR_GIRQ0, ZR36057_ICR);
-
- if(request_irq(zr->pci_dev->irq, zoran_irq,
- SA_SHIRQ | SA_INTERRUPT, zr->name, (void *) zr)<0)
- {
- printk(KERN_ERR "%s: Can't assign irq.\n", zr->name);
- video_unregister_device(&zr->video_dev);
- i2c_unregister_bus(&zr->i2c);
- kfree((void *) zr->stat_com);
- return -1;
- }
- zr->initialized = 1;
- return 0;
-}
-
-
-
-static void release_zoran(void)
-{
- u8 command;
- int i;
- struct zoran *zr;
-
- for (i = 0; i < zoran_num; i++) {
- zr = &zoran[i];
-
- if (!zr->initialized)
- continue;
-
- /* unregister i2c_bus */
- i2c_unregister_bus((&zr->i2c));
-
- /* disable PCI bus-mastering */
- pci_read_config_byte(zr->pci_dev, PCI_COMMAND, &command);
- command &= ~PCI_COMMAND_MASTER;
- pci_write_config_byte(zr->pci_dev, PCI_COMMAND, command);
-
- /* put chip into reset */
- btwrite(0, ZR36057_SPGPPCR);
-
- free_irq(zr->pci_dev->irq, zr);
-
- /* unmap and free memory */
-
- kfree((void *) zr->stat_com);
-
- iounmap(zr->zr36057_mem);
-
- video_unregister_device(&zr->video_dev);
- }
-}
-
-/*
- * Scan for a Buz card (actually for the PCI controller ZR36057),
- * request the irq and map the io memory
- */
-
-static int find_zr36057(void)
-{
- unsigned char latency;
- struct zoran *zr;
- struct pci_dev *dev = NULL;
-
- zoran_num = 0;
-
- while (zoran_num < BUZ_MAX
- && (dev = pci_find_device(PCI_VENDOR_ID_ZORAN, PCI_DEVICE_ID_ZORAN_36057, dev)) != NULL) {
- zr = &zoran[zoran_num];
- zr->pci_dev = dev;
- zr->zr36057_mem = NULL;
- zr->id = zoran_num;
- sprintf(zr->name, "zoran%u", zr->id);
-
- spin_lock_init(&zr->lock);
-
- if (pci_enable_device(dev))
- continue;
-
- zr->zr36057_adr = pci_resource_start(zr->pci_dev, 0);
- pci_read_config_byte(zr->pci_dev, PCI_CLASS_REVISION, &zr->revision);
- if (zr->revision < 2) {
- printk(KERN_INFO "%s: Zoran ZR36057 (rev %d) irq: %d, memory: 0x%08x.\n",
- zr->name, zr->revision, zr->pci_dev->irq, zr->zr36057_adr);
- } else {
- unsigned short ss_vendor_id, ss_id;
-
- ss_vendor_id = zr->pci_dev->subsystem_vendor;
- ss_id = zr->pci_dev->subsystem_device;
- printk(KERN_INFO "%s: Zoran ZR36067 (rev %d) irq: %d, memory: 0x%08x\n",
- zr->name, zr->revision, zr->pci_dev->irq, zr->zr36057_adr);
- printk(KERN_INFO "%s: subsystem vendor=0x%04x id=0x%04x\n",
- zr->name, ss_vendor_id, ss_id);
- if(ss_vendor_id==0xFF10 && ss_id == 0xDE41)
- {
- zr->board = BOARD_LML33;
- printk(KERN_INFO "%s: LML33 detected.\n", zr->name);
- }
- }
-
- zr->zr36057_mem = ioremap(zr->zr36057_adr, 0x1000);
- if (!zr->zr36057_mem) {
- printk(KERN_ERR "%s: ioremap failed\n", zr->name);
- /* XXX handle error */
- }
-
- /* set PCI latency timer */
- pci_read_config_byte(zr->pci_dev, PCI_LATENCY_TIMER, &latency);
- if (latency != 48) {
- printk(KERN_INFO "%s: Changing PCI latency from %d to 48.\n", zr->name, latency);
- latency = 48;
- pci_write_config_byte(zr->pci_dev, PCI_LATENCY_TIMER, latency);
- }
- zoran_num++;
- }
- if (zoran_num == 0)
- printk(KERN_INFO "zoran: no cards found.\n");
-
- return zoran_num;
-}
-
-static void handle_chipset(void)
-{
- if(pci_pci_problems&PCIPCI_FAIL)
- {
- printk(KERN_WARNING "buz: This configuration is known to have PCI to PCI DMA problems\n");
- printk(KERN_WARNING "buz: You may not be able to use overlay mode.\n");
- }
-
-
- if(pci_pci_problems&PCIPCI_TRITON)
- {
- printk("buz: Enabling Triton support.\n");
- triton = 1;
- }
-
- if(pci_pci_problems&PCIPCI_NATOMA)
- {
- printk("buz: Enabling Natoma workaround.\n");
- natoma = 1;
- }
-}
-
-#ifdef MODULE
-int init_module(void)
-#else
-int init_zoran_cards(struct video_init *unused)
-#endif
-{
- int i;
-
-
- printk(KERN_INFO "Zoran driver 1.00 (c) 1999 Rainer Johanni, Dave Perks.\n");
-
- /* Look for Buz cards */
-
- if (find_zr36057() <= 0) {
- return -EIO;
- }
- printk(KERN_INFO"zoran: %d zoran card(s) found\n", zoran_num);
-
- if (zoran_num == 0)
- return -ENXIO;
-
-
- /* check the parameters we have been given, adjust if necessary */
-
- if (v4l_nbufs < 0)
- v4l_nbufs = 0;
- if (v4l_nbufs > VIDEO_MAX_FRAME)
- v4l_nbufs = VIDEO_MAX_FRAME;
- /* The user specfies the in KB, we want them in byte (and page aligned) */
- v4l_bufsize = PAGE_ALIGN(v4l_bufsize * 1024);
- if (v4l_bufsize < 32768)
- v4l_bufsize = 32768;
- /* 2 MB is arbitrary but sufficient for the maximum possible images */
- if (v4l_bufsize > 2048 * 1024)
- v4l_bufsize = 2048 * 1024;
-
- printk(KERN_INFO "zoran: using %d V4L buffers of size %d KB\n", v4l_nbufs, v4l_bufsize >> 10);
-
- /* Use parameter for vidmem or try to find a video card */
-
- if (vidmem) {
- printk(KERN_INFO "zoran: Using supplied video memory base address @ 0x%lx\n", vidmem);
- }
-
- /* check if we have a Triton or Natome chipset */
-
- handle_chipset();
-
- /* take care of Natoma chipset and a revision 1 zr36057 */
-
- for (i = 0; i < zoran_num; i++) {
- if (natoma && zoran[i].revision <= 1) {
- zoran[i].need_contiguous = 1;
- printk(KERN_INFO "%s: ZR36057/Natome bug, max. buffer size is 128K\n", zoran[i].name);
- } else {
- zoran[i].need_contiguous = 0;
- }
- }
-
- /* initialize the Buzs */
-
- /* We have to know which ones must be released if an error occurs */
- for (i = 0; i < zoran_num; i++)
- zoran[i].initialized = 0;
-
- for (i = 0; i < zoran_num; i++) {
- if (zr36057_init(i) < 0) {
- release_zoran();
- return -EIO;
- }
- }
-
- return 0;
-}
-
-
-
-#ifdef MODULE
-
-void cleanup_module(void)
-{
- release_zoran();
-}
-
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 05:29:22 +0000