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path: root/drivers/media/video/bttv-vbi.c
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Diffstat (limited to 'drivers/media/video/bttv-vbi.c')
-rw-r--r--drivers/media/video/bttv-vbi.c235
1 files changed, 0 insertions, 235 deletions
diff --git a/drivers/media/video/bttv-vbi.c b/drivers/media/video/bttv-vbi.c
deleted file mode 100644
index 06f3e62b3e8..00000000000
--- a/drivers/media/video/bttv-vbi.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- $Id: bttv-vbi.c,v 1.9 2005/01/13 17:22:33 kraxel Exp $
-
- bttv - Bt848 frame grabber driver
- vbi interface
-
- (c) 2002 Gerd Knorr <kraxel@bytesex.org>
-
- 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/moduleparam.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/kdev_t.h>
-#include <asm/io.h>
-#include "bttvp.h"
-
-#define VBI_DEFLINES 16
-#define VBI_MAXLINES 32
-
-static unsigned int vbibufs = 4;
-static unsigned int vbi_debug = 0;
-
-module_param(vbibufs, int, 0444);
-module_param(vbi_debug, int, 0644);
-MODULE_PARM_DESC(vbibufs,"number of vbi buffers, range 2-32, default 4");
-MODULE_PARM_DESC(vbi_debug,"vbi code debug messages, default is 0 (no)");
-
-#ifdef dprintk
-# undef dprintk
-#endif
-#define dprintk(fmt, arg...) if (vbi_debug) \
- printk(KERN_DEBUG "bttv%d/vbi: " fmt, btv->c.nr , ## arg)
-
-/* ----------------------------------------------------------------------- */
-/* vbi risc code + mm */
-
-static int
-vbi_buffer_risc(struct bttv *btv, struct bttv_buffer *buf, int lines)
-{
- int bpl = 2048;
-
- bttv_risc_packed(btv, &buf->top, buf->vb.dma.sglist,
- 0, bpl-4, 4, lines);
- bttv_risc_packed(btv, &buf->bottom, buf->vb.dma.sglist,
- lines * bpl, bpl-4, 4, lines);
- return 0;
-}
-
-static int vbi_buffer_setup(struct videobuf_queue *q,
- unsigned int *count, unsigned int *size)
-{
- struct bttv_fh *fh = q->priv_data;
- struct bttv *btv = fh->btv;
-
- if (0 == *count)
- *count = vbibufs;
- *size = fh->lines * 2 * 2048;
- dprintk("setup: lines=%d\n",fh->lines);
- return 0;
-}
-
-static int vbi_buffer_prepare(struct videobuf_queue *q,
- struct videobuf_buffer *vb,
- enum v4l2_field field)
-{
- struct bttv_fh *fh = q->priv_data;
- struct bttv *btv = fh->btv;
- struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
- int rc;
-
- buf->vb.size = fh->lines * 2 * 2048;
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
- return -EINVAL;
-
- if (STATE_NEEDS_INIT == buf->vb.state) {
- if (0 != (rc = videobuf_iolock(btv->c.pci, &buf->vb, NULL)))
- goto fail;
- if (0 != (rc = vbi_buffer_risc(btv,buf,fh->lines)))
- goto fail;
- }
- buf->vb.state = STATE_PREPARED;
- buf->vb.field = field;
- dprintk("buf prepare %p: top=%p bottom=%p field=%s\n",
- vb, &buf->top, &buf->bottom,
- v4l2_field_names[buf->vb.field]);
- return 0;
-
- fail:
- bttv_dma_free(btv,buf);
- return rc;
-}
-
-static void
-vbi_buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct bttv_fh *fh = q->priv_data;
- struct bttv *btv = fh->btv;
- struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
-
- dprintk("queue %p\n",vb);
- buf->vb.state = STATE_QUEUED;
- list_add_tail(&buf->vb.queue,&btv->vcapture);
- if (NULL == btv->cvbi) {
- fh->btv->loop_irq |= 4;
- bttv_set_dma(btv,0x0c);
- }
-}
-
-static void vbi_buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct bttv_fh *fh = q->priv_data;
- struct bttv *btv = fh->btv;
- struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
-
- dprintk("free %p\n",vb);
- bttv_dma_free(fh->btv,buf);
-}
-
-struct videobuf_queue_ops bttv_vbi_qops = {
- .buf_setup = vbi_buffer_setup,
- .buf_prepare = vbi_buffer_prepare,
- .buf_queue = vbi_buffer_queue,
- .buf_release = vbi_buffer_release,
-};
-
-/* ----------------------------------------------------------------------- */
-
-void bttv_vbi_setlines(struct bttv_fh *fh, struct bttv *btv, int lines)
-{
- int vdelay;
-
- if (lines < 1)
- lines = 1;
- if (lines > VBI_MAXLINES)
- lines = VBI_MAXLINES;
- fh->lines = lines;
-
- vdelay = btread(BT848_E_VDELAY_LO);
- if (vdelay < lines*2) {
- vdelay = lines*2;
- btwrite(vdelay,BT848_E_VDELAY_LO);
- btwrite(vdelay,BT848_O_VDELAY_LO);
- }
-}
-
-void bttv_vbi_try_fmt(struct bttv_fh *fh, struct v4l2_format *f)
-{
- const struct bttv_tvnorm *tvnorm;
- u32 start0,start1;
- s32 count0,count1,count;
-
- tvnorm = &bttv_tvnorms[fh->btv->tvnorm];
- f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
- f->fmt.vbi.sampling_rate = tvnorm->Fsc;
- f->fmt.vbi.samples_per_line = 2048;
- f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
- f->fmt.vbi.offset = 244;
- f->fmt.vbi.flags = 0;
- switch (fh->btv->tvnorm) {
- case 1: /* NTSC */
- start0 = 10;
- start1 = 273;
- break;
- case 0: /* PAL */
- case 2: /* SECAM */
- default:
- start0 = 7;
- start1 = 320;
- }
-
- count0 = (f->fmt.vbi.start[0] + f->fmt.vbi.count[0]) - start0;
- count1 = (f->fmt.vbi.start[1] + f->fmt.vbi.count[1]) - start1;
- count = max(count0,count1);
- if (count > VBI_MAXLINES)
- count = VBI_MAXLINES;
- if (count < 1)
- count = 1;
-
- f->fmt.vbi.start[0] = start0;
- f->fmt.vbi.start[1] = start1;
- f->fmt.vbi.count[0] = count;
- f->fmt.vbi.count[1] = count;
-}
-
-void bttv_vbi_get_fmt(struct bttv_fh *fh, struct v4l2_format *f)
-{
- const struct bttv_tvnorm *tvnorm;
-
- tvnorm = &bttv_tvnorms[fh->btv->tvnorm];
- memset(f,0,sizeof(*f));
- f->type = V4L2_BUF_TYPE_VBI_CAPTURE;
- f->fmt.vbi.sampling_rate = tvnorm->Fsc;
- f->fmt.vbi.samples_per_line = 2048;
- f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
- f->fmt.vbi.offset = 244;
- f->fmt.vbi.count[0] = fh->lines;
- f->fmt.vbi.count[1] = fh->lines;
- f->fmt.vbi.flags = 0;
- switch (fh->btv->tvnorm) {
- case 1: /* NTSC */
- f->fmt.vbi.start[0] = 10;
- f->fmt.vbi.start[1] = 273;
- break;
- case 0: /* PAL */
- case 2: /* SECAM */
- default:
- f->fmt.vbi.start[0] = 7;
- f->fmt.vbi.start[1] = 319;
- }
-}
-
-/* ----------------------------------------------------------------------- */
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
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