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Diffstat (limited to 'drivers/media/video/cx23885/cx23885-vbi.c')
-rw-r--r--drivers/media/video/cx23885/cx23885-vbi.c295
1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/media/video/cx23885/cx23885-vbi.c b/drivers/media/video/cx23885/cx23885-vbi.c
deleted file mode 100644
index a1154f035bc1..000000000000
--- a/drivers/media/video/cx23885/cx23885-vbi.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- *  Driver for the Conexant CX23885 PCIe bridge
- *
- *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.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/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-
-#include "cx23885.h"
-
-static unsigned int vbibufs = 4;
-module_param(vbibufs, int, 0644);
-MODULE_PARM_DESC(vbibufs, "number of vbi buffers, range 2-32");
-
-static unsigned int vbi_debug;
-module_param(vbi_debug, int, 0644);
-MODULE_PARM_DESC(vbi_debug, "enable debug messages [vbi]");
-
-#define dprintk(level, fmt, arg...)\
-	do { if (vbi_debug >= level)\
-		printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
-	} while (0)
-
-/* ------------------------------------------------------------------ */
-
-#define VBI_LINE_LENGTH 1440
-#define NTSC_VBI_START_LINE 10        /* line 10 - 21 */
-#define NTSC_VBI_END_LINE   21
-#define NTSC_VBI_LINES      (NTSC_VBI_END_LINE - NTSC_VBI_START_LINE + 1)
-
-
-int cx23885_vbi_fmt(struct file *file, void *priv,
-	struct v4l2_format *f)
-{
-	struct cx23885_fh *fh = priv;
-	struct cx23885_dev *dev = fh->dev;
-
-	if (dev->tvnorm & V4L2_STD_525_60) {
-		/* ntsc */
-		f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
-		f->fmt.vbi.sampling_rate = 27000000;
-		f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
-		f->fmt.vbi.offset = 0;
-		f->fmt.vbi.flags = 0;
-		f->fmt.vbi.start[0] = 10;
-		f->fmt.vbi.count[0] = 17;
-		f->fmt.vbi.start[1] = 263 + 10 + 1;
-		f->fmt.vbi.count[1] = 17;
-	} else if (dev->tvnorm & V4L2_STD_625_50) {
-		/* pal */
-		f->fmt.vbi.sampling_rate = 35468950;
-		f->fmt.vbi.start[0] = 7 - 1;
-		f->fmt.vbi.start[1] = 319 - 1;
-	}
-
-	return 0;
-}
-
-/* We're given the Video Interrupt status register.
- * The cx23885_video_irq() func has already validated
- * the potential error bits, we just need to
- * deal with vbi payload and return indication if
- * we actually processed any payload.
- */
-int cx23885_vbi_irq(struct cx23885_dev *dev, u32 status)
-{
-	u32 count;
-	int handled = 0;
-
-	if (status & VID_BC_MSK_VBI_RISCI1) {
-		dprintk(1, "%s() VID_BC_MSK_VBI_RISCI1\n", __func__);
-		spin_lock(&dev->slock);
-		count = cx_read(VID_A_GPCNT);
-		cx23885_video_wakeup(dev, &dev->vbiq, count);
-		spin_unlock(&dev->slock);
-		handled++;
-	}
-
-	if (status & VID_BC_MSK_VBI_RISCI2) {
-		dprintk(1, "%s() VID_BC_MSK_VBI_RISCI2\n", __func__);
-		dprintk(2, "stopper vbi\n");
-		spin_lock(&dev->slock);
-		cx23885_restart_vbi_queue(dev, &dev->vbiq);
-		spin_unlock(&dev->slock);
-		handled++;
-	}
-
-	return handled;
-}
-
-static int cx23885_start_vbi_dma(struct cx23885_dev    *dev,
-			 struct cx23885_dmaqueue *q,
-			 struct cx23885_buffer   *buf)
-{
-	dprintk(1, "%s()\n", __func__);
-
-	/* setup fifo + format */
-	cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH02],
-				buf->vb.width, buf->risc.dma);
-
-	/* reset counter */
-	cx_write(VID_A_GPCNT_CTL, 3);
-	cx_write(VID_A_VBI_CTRL, 3);
-	cx_write(VBI_A_GPCNT_CTL, 3);
-	q->count = 1;
-
-	/* enable irq */
-	cx23885_irq_add_enable(dev, 0x01);
-	cx_set(VID_A_INT_MSK, 0x000022);
-
-	/* start dma */
-	cx_set(DEV_CNTRL2, (1<<5));
-	cx_set(VID_A_DMA_CTL, 0x22); /* FIFO and RISC enable */
-
-	return 0;
-}
-
-
-int cx23885_restart_vbi_queue(struct cx23885_dev    *dev,
-			     struct cx23885_dmaqueue *q)
-{
-	struct cx23885_buffer *buf;
-	struct list_head *item;
-
-	if (list_empty(&q->active))
-		return 0;
-
-	buf = list_entry(q->active.next, struct cx23885_buffer, vb.queue);
-	dprintk(2, "restart_queue [%p/%d]: restart dma\n",
-		buf, buf->vb.i);
-	cx23885_start_vbi_dma(dev, q, buf);
-	list_for_each(item, &q->active) {
-		buf = list_entry(item, struct cx23885_buffer, vb.queue);
-		buf->count = q->count++;
-	}
-	mod_timer(&q->timeout, jiffies + (BUFFER_TIMEOUT / 30));
-	return 0;
-}
-
-void cx23885_vbi_timeout(unsigned long data)
-{
-	struct cx23885_dev *dev = (struct cx23885_dev *)data;
-	struct cx23885_dmaqueue *q = &dev->vbiq;
-	struct cx23885_buffer *buf;
-	unsigned long flags;
-
-	/* Stop the VBI engine */
-	cx_clear(VID_A_DMA_CTL, 0x22);
-
-	spin_lock_irqsave(&dev->slock, flags);
-	while (!list_empty(&q->active)) {
-		buf = list_entry(q->active.next, struct cx23885_buffer,
-			vb.queue);
-		list_del(&buf->vb.queue);
-		buf->vb.state = VIDEOBUF_ERROR;
-		wake_up(&buf->vb.done);
-		printk("%s/0: [%p/%d] timeout - dma=0x%08lx\n", dev->name,
-		       buf, buf->vb.i, (unsigned long)buf->risc.dma);
-	}
-	cx23885_restart_vbi_queue(dev, q);
-	spin_unlock_irqrestore(&dev->slock, flags);
-}
-
-/* ------------------------------------------------------------------ */
-#define VBI_LINE_LENGTH 1440
-#define VBI_LINE_COUNT 17
-
-static int
-vbi_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
-{
-	*size = VBI_LINE_COUNT * VBI_LINE_LENGTH * 2;
-	if (0 == *count)
-		*count = vbibufs;
-	if (*count < 2)
-		*count = 2;
-	if (*count > 32)
-		*count = 32;
-	return 0;
-}
-
-static int
-vbi_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
-	    enum v4l2_field field)
-{
-	struct cx23885_fh *fh  = q->priv_data;
-	struct cx23885_dev *dev = fh->dev;
-	struct cx23885_buffer *buf = container_of(vb,
-		struct cx23885_buffer, vb);
-	struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
-	unsigned int size;
-	int rc;
-
-	size = VBI_LINE_COUNT * VBI_LINE_LENGTH * 2;
-	if (0 != buf->vb.baddr  &&  buf->vb.bsize < size)
-		return -EINVAL;
-
-	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
-		buf->vb.width  = VBI_LINE_LENGTH;
-		buf->vb.height = VBI_LINE_COUNT;
-		buf->vb.size   = size;
-		buf->vb.field  = V4L2_FIELD_SEQ_TB;
-
-		rc = videobuf_iolock(q, &buf->vb, NULL);
-		if (0 != rc)
-			goto fail;
-		cx23885_risc_vbibuffer(dev->pci, &buf->risc,
-				 dma->sglist,
-				 0, buf->vb.width * buf->vb.height,
-				 buf->vb.width, 0,
-				 buf->vb.height);
-	}
-	buf->vb.state = VIDEOBUF_PREPARED;
-	return 0;
-
- fail:
-	cx23885_free_buffer(q, buf);
-	return rc;
-}
-
-static void
-vbi_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
-	struct cx23885_buffer   *buf =
-		container_of(vb, struct cx23885_buffer, vb);
-	struct cx23885_buffer   *prev;
-	struct cx23885_fh       *fh   = vq->priv_data;
-	struct cx23885_dev      *dev  = fh->dev;
-	struct cx23885_dmaqueue *q    = &dev->vbiq;
-
-	/* add jump to stopper */
-	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
-	buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
-	buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
-
-	if (list_empty(&q->active)) {
-		list_add_tail(&buf->vb.queue, &q->active);
-		cx23885_start_vbi_dma(dev, q, buf);
-		buf->vb.state = VIDEOBUF_ACTIVE;
-		buf->count    = q->count++;
-		mod_timer(&q->timeout, jiffies + (BUFFER_TIMEOUT / 30));
-		dprintk(2, "[%p/%d] vbi_queue - first active\n",
-			buf, buf->vb.i);
-
-	} else {
-		prev = list_entry(q->active.prev, struct cx23885_buffer,
-			vb.queue);
-		list_add_tail(&buf->vb.queue, &q->active);
-		buf->vb.state = VIDEOBUF_ACTIVE;
-		buf->count    = q->count++;
-		prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
-		prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63-32 */
-		dprintk(2, "[%p/%d] buffer_queue - append to active\n",
-			buf, buf->vb.i);
-	}
-}
-
-static void vbi_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
-	struct cx23885_buffer *buf =
-		container_of(vb, struct cx23885_buffer, vb);
-
-	cx23885_free_buffer(q, buf);
-}
-
-struct videobuf_queue_ops cx23885_vbi_qops = {
-	.buf_setup    = vbi_setup,
-	.buf_prepare  = vbi_prepare,
-	.buf_queue    = vbi_queue,
-	.buf_release  = vbi_release,
-};
-
-/* ------------------------------------------------------------------ */
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-10-05 14:34:35 +0000