1 files changed, 521 insertions, 0 deletions

diff --git a/linux/drivers/media/video/saa7134/saa7134-ts.c b/linux/drivers/media/video/saa7134/saa7134-ts.c
new file mode 100644
index 000000000..a18478bfe
--- /dev/null
+++ b/linux/drivers/media/video/saa7134/saa7134-ts.c
@@ -0,0 +1,521 @@
+/*
+ * device driver for philips saa7134 based TV cards
+ * video4linux video interface
+ *
+ * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
+ *
+ *  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/init.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+
+#include "saa7134-reg.h"
+#include "saa7134.h"
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,64)
+#include "saa6752hs.h"
+#else
+#include <media/saa6752hs.h>
+#endif
+
+/* ------------------------------------------------------------------ */
+
+static unsigned int ts_debug  = 0;
+MODULE_PARM(ts_debug,"i");
+MODULE_PARM_DESC(ts_debug,"enable debug messages [ts]");
+
+static unsigned int tsbufs = 4;
+MODULE_PARM(tsbufs,"i");
+MODULE_PARM_DESC(tsbufs,"number of ts buffers, range 2-32");
+
+#define TS_PACKET_SIZE 188 /* TS packets 188 bytes */
+#define TS_NR_PACKETS 312
+
+#define dprintk(fmt, arg...)	if (ts_debug) \
+	printk(KERN_DEBUG "%s/ts: " fmt, dev->name , ## arg)
+
+/* ------------------------------------------------------------------ */
+
+static int buffer_activate(struct saa7134_dev *dev,
+			   struct saa7134_buf *buf,
+			   struct saa7134_buf *next)
+{
+	u32 control;
+	
+	dprintk("buffer_activate [%p]",buf);
+	buf->vb.state = STATE_ACTIVE;
+	buf->top_seen = 0;
+	
+        /* dma: setup channel 5 (= TS) */
+        control = SAA7134_RS_CONTROL_BURST_16 |
+                SAA7134_RS_CONTROL_ME |
+                (buf->pt->dma >> 12);
+
+	if (NULL == next)
+		next = buf;
+	if (V4L2_FIELD_TOP == buf->vb.field) {
+		dprintk("- [top]     buf=%p next=%p\n",buf,next);
+		saa_writel(SAA7134_RS_BA1(5),saa7134_buffer_base(buf));
+		saa_writel(SAA7134_RS_BA2(5),saa7134_buffer_base(next));
+	} else {
+		dprintk("- [bottom]  buf=%p next=%p\n",buf,next);
+		saa_writel(SAA7134_RS_BA1(5),saa7134_buffer_base(next));
+		saa_writel(SAA7134_RS_BA2(5),saa7134_buffer_base(buf));
+	}
+	saa_writel(SAA7134_RS_PITCH(5),TS_PACKET_SIZE);
+	saa_writel(SAA7134_RS_CONTROL(5),control);
+
+	/* start DMA */
+	saa7134_set_dmabits(dev);
+	
+	mod_timer(&dev->ts_q.timeout, jiffies+BUFFER_TIMEOUT);
+	return 0;
+}
+
+static int buffer_prepare(struct file *file, struct videobuf_buffer *vb,
+			  enum v4l2_field field)
+{
+	struct saa7134_dev *dev = file->private_data;
+	struct saa7134_buf *buf = (struct saa7134_buf *)vb;
+	unsigned int lines, llength, size;
+	int err;
+	
+	dprintk("buffer_prepare [%p,%s]\n",buf,v4l2_field_names[field]);
+
+	llength = TS_PACKET_SIZE;
+	lines = TS_NR_PACKETS;
+	
+	size = lines * llength;
+	if (0 != buf->vb.baddr  &&  buf->vb.bsize < size)
+		return -EINVAL;
+
+	if (buf->vb.size != size) {
+		saa7134_dma_free(dev,buf);
+	}
+
+	if (STATE_NEEDS_INIT == buf->vb.state) {
+		buf->vb.width  = llength;
+		buf->vb.height = lines;
+		buf->vb.size   = size;
+		buf->pt        = &dev->ts.pt_ts;
+
+		err = videobuf_iolock(dev->pci,&buf->vb,NULL);
+		if (err)
+			goto oops;
+		err = saa7134_pgtable_build(dev->pci,buf->pt,
+					    buf->vb.dma.sglist,
+					    buf->vb.dma.sglen,
+					    saa7134_buffer_startpage(buf));
+		if (err)
+			goto oops;
+	}
+	buf->vb.state = STATE_PREPARED;
+	buf->activate = buffer_activate;
+	buf->vb.field = field;
+	return 0;
+
+ oops:
+	saa7134_dma_free(dev,buf);
+	return err;
+}
+
+static int
+buffer_setup(struct file *file, unsigned int *count, unsigned int *size)
+{
+	*size = TS_PACKET_SIZE * TS_NR_PACKETS;
+	if (0 == *count)
+		*count = tsbufs;
+	*count = saa7134_buffer_count(*size,*count);
+	return 0;
+}
+
+static void buffer_queue(struct file *file, struct videobuf_buffer *vb)
+{
+	struct saa7134_dev *dev = file->private_data;
+	struct saa7134_buf *buf = (struct saa7134_buf *)vb;
+	
+	saa7134_buffer_queue(dev,&dev->ts_q,buf);
+}
+
+static void buffer_release(struct file *file, struct videobuf_buffer *vb)
+{
+	struct saa7134_dev *dev = file->private_data;
+	struct saa7134_buf *buf = (struct saa7134_buf *)vb;
+	
+	saa7134_dma_free(dev,buf);
+}
+
+static struct videobuf_queue_ops ts_qops = {
+	.buf_setup    = buffer_setup,
+	.buf_prepare  = buffer_prepare,
+	.buf_queue    = buffer_queue,
+	.buf_release  = buffer_release,
+};
+
+
+/* ------------------------------------------------------------------ */
+
+static void ts_reset_encoder(struct saa7134_dev* dev) 
+{
+	saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
+	mdelay(10);
+   	saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
+   	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ/10);
+}
+
+static int ts_init_encoder(struct saa7134_dev* dev, void* arg) 
+{
+	ts_reset_encoder(dev);
+	saa7134_i2c_call_clients(dev, MPEG_SETPARAMS, arg);
+ 	return 0;
+}
+
+
+/* ------------------------------------------------------------------ */
+
+static int ts_open(struct inode *inode, struct file *file)
+{
+	int minor = iminor(inode);
+	struct saa7134_dev *h,*dev = NULL;
+	struct list_head *list;
+	int err;
+	
+	list_for_each(list,&saa7134_devlist) {
+		h = list_entry(list, struct saa7134_dev, devlist);
+		if (h->ts_dev && h->ts_dev->minor == minor)
+			dev = h;
+	}
+	if (NULL == dev)
+		return -ENODEV;
+
+	dprintk("open minor=%d\n",minor);
+	down(&dev->ts.ts.lock);
+	err = -EBUSY;
+	if (dev->ts.users)
+		goto done;
+
+	dev->ts.started = 0;
+	dev->ts.users++;
+	file->private_data = dev;
+	err = 0;
+
+ done:
+	up(&dev->ts.ts.lock);
+	return err;
+}
+
+static int ts_release(struct inode *inode, struct file *file)
+{
+	struct saa7134_dev *dev = file->private_data;
+
+	if (dev->ts.ts.streaming)
+		videobuf_streamoff(file,&dev->ts.ts);
+	down(&dev->ts.ts.lock);
+	if (dev->ts.ts.reading)
+		videobuf_read_stop(file,&dev->ts.ts);
+	dev->ts.users--;
+
+	/* stop the encoder */
+	if (dev->ts.started)
+	      	ts_reset_encoder(dev);
+  
+	up(&dev->ts.ts.lock);
+	return 0;
+}
+
+static ssize_t
+ts_read(struct file *file, char *data, size_t count, loff_t *ppos)
+{
+	struct saa7134_dev *dev = file->private_data;
+
+	if (!dev->ts.started) {
+		ts_init_encoder(dev, NULL);
+		dev->ts.started = 1;
+	}
+  
+	return videobuf_read_stream(file, &dev->ts.ts, data, count, ppos, 0);
+}
+
+static unsigned int
+ts_poll(struct file *file, struct poll_table_struct *wait)
+{
+	struct saa7134_dev *dev = file->private_data;
+
+	return videobuf_poll_stream(file, &dev->ts.ts, wait);
+}
+
+
+static int
+ts_mmap(struct file *file, struct vm_area_struct * vma)
+{
+	struct saa7134_dev *dev = file->private_data;
+
+	return videobuf_mmap_mapper(vma, &dev->ts.ts);
+}
+
+/*
+ * This function is _not_ called directly, but from
+ * video_generic_ioctl (and maybe others).  userspace
+ * copying is done already, arg is a kernel pointer.
+ */
+static int ts_do_ioctl(struct inode *inode, struct file *file,
+		       unsigned int cmd, void *arg)
+{
+	struct saa7134_dev *dev = file->private_data;
+
+	if (ts_debug > 1)
+		saa7134_print_ioctl(dev->name,cmd);
+	switch (cmd) {
+	case VIDIOC_QUERYCAP:
+	{
+		struct v4l2_capability *cap = arg;
+
+		memset(cap,0,sizeof(*cap));
+                strcpy(cap->driver, "saa7134");
+		strlcpy(cap->card, saa7134_boards[dev->board].name,
+			sizeof(cap->card));
+		sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
+		cap->version = SAA7134_VERSION_CODE;
+		cap->capabilities =
+			V4L2_CAP_VIDEO_CAPTURE |
+			V4L2_CAP_READWRITE |
+			V4L2_CAP_STREAMING;
+		return 0;
+	}
+
+	/* --- input switching --------------------------------------- */
+	case VIDIOC_ENUMINPUT:
+	{
+		struct v4l2_input *i = arg;
+		
+		if (i->index != 0)
+			return -EINVAL;
+		i->type = V4L2_INPUT_TYPE_CAMERA;
+		strcpy(i->name,"CCIR656");
+		return 0;
+	}
+	case VIDIOC_G_INPUT:
+	{
+		int *i = arg;
+		*i = 0;
+		return 0;
+	}
+	case VIDIOC_S_INPUT:
+	{
+		int *i = arg;
+		
+		if (*i != 0)
+			return -EINVAL;
+		return 0;
+	}
+	/* --- capture ioctls ---------------------------------------- */
+	
+	case VIDIOC_ENUM_FMT:
+	{
+		struct v4l2_fmtdesc *f = arg;
+		int index;
+
+		index = f->index;
+		if (index != 0)
+			return -EINVAL;
+		
+		memset(f,0,sizeof(*f));
+		f->index = index;
+		strlcpy(f->description, "MPEG TS", sizeof(f->description));
+		f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		f->pixelformat = V4L2_PIX_FMT_MPEG;
+		return 0;
+	}
+
+	case VIDIOC_G_FMT:
+	{
+		struct v4l2_format *f = arg;
+
+		memset(f,0,sizeof(*f));
+		f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		
+		/* FIXME: translate subsampling type EMPRESS into
+		 *        width/height: */
+		f->fmt.pix.width        = 720; /* D1 */
+		f->fmt.pix.height       = 576;
+		f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
+		f->fmt.pix.sizeimage    = TS_PACKET_SIZE*TS_NR_PACKETS;
+		return 0;
+	}
+	
+	case VIDIOC_S_FMT:
+	{
+		struct v4l2_format *f = arg;
+
+		if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		    return -EINVAL;
+
+		/* 
+		  FIXME: translate and round width/height into EMPRESS
+		  subsample type:
+		 
+		          type  |   PAL   |  NTSC 
+			---------------------------
+			  SIF   | 352x288 | 352x240
+			 1/2 D1 | 352x576 | 352x480
+			 2/3 D1 | 480x576 | 480x480
+			  D1    | 720x576 | 720x480
+		*/
+
+		f->fmt.pix.width        = 720; /* D1 */
+		f->fmt.pix.height       = 576;
+		f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
+		f->fmt.pix.sizeimage    = TS_PACKET_SIZE*TS_NR_PACKETS;
+		return 0;
+	}
+
+	case VIDIOC_REQBUFS:
+		return videobuf_reqbufs(file,&dev->ts.ts,arg);
+
+	case VIDIOC_QUERYBUF:
+		return videobuf_querybuf(&dev->ts.ts,arg);
+
+	case VIDIOC_QBUF:
+		return videobuf_qbuf(file,&dev->ts.ts,arg);
+
+	case VIDIOC_DQBUF:
+		return videobuf_dqbuf(file,&dev->ts.ts,arg);
+
+	case VIDIOC_STREAMON:
+		return videobuf_streamon(file,&dev->ts.ts);
+
+	case VIDIOC_STREAMOFF:
+		return videobuf_streamoff(file,&dev->ts.ts);
+
+	case VIDIOC_QUERYCTRL:
+	case VIDIOC_G_CTRL:
+	case VIDIOC_S_CTRL:
+		return saa7134_common_ioctl(dev, cmd, arg);
+
+	case MPEG_SETPARAMS:
+		return ts_init_encoder(dev, arg);
+	  
+	default:
+		return -ENOIOCTLCMD;
+	}
+	return 0;
+}
+
+static int ts_ioctl(struct inode *inode, struct file *file,
+		     unsigned int cmd, unsigned long arg)
+{
+	return video_usercopy(inode, file, cmd, arg, ts_do_ioctl);
+}
+
+
+static struct file_operations ts_fops =
+{
+	.owner	  = THIS_MODULE,
+	.open	  = ts_open,
+	.release  = ts_release,
+	.read	  = ts_read,
+	.poll	  = ts_poll,
+	.mmap	  = ts_mmap,
+	.ioctl	  = ts_ioctl,
+	.llseek   = no_llseek,
+};
+
+
+/* ----------------------------------------------------------- */
+/* exported stuff                                              */
+
+struct video_device saa7134_ts_template =
+{
+	.name          = "saa7134-ts",
+	.type          = 0 /* FIXME */,
+	.type2         = 0 /* FIXME */,
+	.hardware      = 0,
+	.fops          = &ts_fops,
+	.minor	       = -1,
+};
+
+int saa7134_ts_init1(struct saa7134_dev *dev)
+{
+	/* sanitycheck insmod options */
+	if (tsbufs < 2)
+		tsbufs = 2;
+	if (tsbufs > VIDEO_MAX_FRAME)
+		tsbufs = VIDEO_MAX_FRAME;
+
+	INIT_LIST_HEAD(&dev->ts_q.queue);
+	init_timer(&dev->ts_q.timeout);
+	dev->ts_q.timeout.function = saa7134_buffer_timeout;
+	dev->ts_q.timeout.data     = (unsigned long)(&dev->ts_q);
+	dev->ts_q.dev              = dev;
+	dev->ts_q.need_two         = 1;
+	videobuf_queue_init(&dev->ts.ts, &ts_qops, dev->pci, &dev->slock,
+			    V4L2_BUF_TYPE_VIDEO_CAPTURE,
+			    V4L2_FIELD_ALTERNATE,
+			    sizeof(struct saa7134_buf));
+	saa7134_pgtable_alloc(dev->pci,&dev->ts.pt_ts);
+
+	/* init TS hw */
+	saa_writeb(SAA7134_TS_SERIAL1, 0x00);  /* deactivate TS softreset */
+	saa_writeb(SAA7134_TS_PARALLEL, 0xec); /* TSSOP high active, TSVAL high active, TSLOCK ignored */
+	saa_writeb(SAA7134_TS_PARALLEL_SERIAL, (TS_PACKET_SIZE-1));
+	saa_writeb(SAA7134_TS_DMA0, ((TS_NR_PACKETS-1)&0xff));
+	saa_writeb(SAA7134_TS_DMA1, (((TS_NR_PACKETS-1)>>8)&0xff));
+	saa_writeb(SAA7134_TS_DMA2, ((((TS_NR_PACKETS-1)>>16)&0x3f) | 0x00)); /* TSNOPIT=0, TSCOLAP=0 */	 
+ 
+	return 0;
+}
+
+int saa7134_ts_fini(struct saa7134_dev *dev)
+{
+	/* nothing */
+	saa7134_pgtable_free(dev->pci,&dev->ts.pt_ts);
+	return 0;
+}
+
+
+void saa7134_irq_ts_done(struct saa7134_dev *dev, unsigned long status)
+{
+	enum v4l2_field field;
+
+	spin_lock(&dev->slock);
+	if (dev->ts_q.curr) {
+		field = dev->ts_q.curr->vb.field;
+		if (field == V4L2_FIELD_TOP) {
+			if ((status & 0x100000) != 0x100000)
+				goto done;
+		} else {
+			if ((status & 0x100000) != 0x000000)
+				goto done;
+		}
+		saa7134_buffer_finish(dev,&dev->ts_q,STATE_DONE);
+	}
+	saa7134_buffer_next(dev,&dev->ts_q);
+
+ done:
+	spin_unlock(&dev->slock);
+}
+
+/* ----------------------------------------------------------- */
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */