/*
+ * $Id: saa7134-ts.c,v 1.12 2004/11/07 13:17:15 kraxel Exp $
+ *
* device driver for philips saa7134 based TV cards
* video4linux video interface
*
#include "saa7134-reg.h"
#include "saa7134.h"
-#include <media/saa6752hs.h>
-
/* ------------------------------------------------------------------ */
-#define TS_PACKET_SIZE 188 /* TS packets 188 bytes */
-
static unsigned int ts_debug = 0;
-MODULE_PARM(ts_debug,"i");
+module_param(ts_debug, int, 0644);
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");
-
-static unsigned int ts_nr_packets = 30;
-MODULE_PARM(ts_nr_packets,"i");
-MODULE_PARM_DESC(ts_nr_packets,"size of a ts buffers (in ts packets)");
-
#define dprintk(fmt, arg...) if (ts_debug) \
printk(KERN_DEBUG "%s/ts: " fmt, dev->name , ## arg)
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 |
/* 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,
+static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
- struct saa7134_dev *dev = file->private_data;
- struct saa7134_buf *buf = (struct saa7134_buf *)vb;
+ struct saa7134_dev *dev = q->priv_data;
+ struct saa7134_buf *buf = container_of(vb,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;
-
+ lines = dev->ts.nr_packets;
+
size = lines * llength;
if (0 != buf->vb.baddr && buf->vb.bsize < size)
return -EINVAL;
}
static int
-buffer_setup(struct file *file, unsigned int *count, unsigned int *size)
+buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
{
- *size = TS_PACKET_SIZE * ts_nr_packets;
+ struct saa7134_dev *dev = q->priv_data;
+
+ *size = TS_PACKET_SIZE * dev->ts.nr_packets;
if (0 == *count)
- *count = tsbufs;
+ *count = dev->ts.nr_bufs;
*count = saa7134_buffer_count(*size,*count);
return 0;
}
-static void buffer_queue(struct file *file, struct videobuf_buffer *vb)
+static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
- struct saa7134_dev *dev = file->private_data;
- struct saa7134_buf *buf = (struct saa7134_buf *)vb;
-
+ struct saa7134_dev *dev = q->priv_data;
+ struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
+
saa7134_buffer_queue(dev,&dev->ts_q,buf);
}
-static void buffer_release(struct file *file, struct videobuf_buffer *vb)
+static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
- struct saa7134_dev *dev = file->private_data;
- struct saa7134_buf *buf = (struct saa7134_buf *)vb;
-
+ struct saa7134_dev *dev = q->priv_data;
+ struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
+
saa7134_dma_free(dev,buf);
}
-static struct videobuf_queue_ops ts_qops = {
+struct videobuf_queue_ops saa7134_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 __user *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,
-};
-
+EXPORT_SYMBOL_GPL(saa7134_ts_qops);
/* ----------------------------------------------------------- */
/* exported stuff */
-struct video_device saa7134_ts_template =
-{
- .name = "saa7134-ts",
- .type = 0 /* FIXME */,
- .type2 = 0 /* FIXME */,
- .hardware = 0,
- .fops = &ts_fops,
- .minor = -1,
-};
+static unsigned int tsbufs = 4;
+module_param(tsbufs, int, 0444);
+MODULE_PARM_DESC(tsbufs,"number of ts buffers, range 2-32");
+
+static unsigned int ts_nr_packets = 30;
+module_param(ts_nr_packets, int, 0444);
+MODULE_PARM_DESC(ts_nr_packets,"size of a ts buffers (in ts packets)");
int saa7134_ts_init1(struct saa7134_dev *dev)
{
ts_nr_packets = 4;
if (ts_nr_packets > 312)
ts_nr_packets = 312;
+ dev->ts.nr_bufs = tsbufs;
+ dev->ts.nr_packets = ts_nr_packets;
INIT_LIST_HEAD(&dev->ts_q.queue);
init_timer(&dev->ts_q.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 */
-
+ saa_writeb(SAA7134_TS_DMA0, ((dev->ts.nr_packets-1)&0xff));
+ saa_writeb(SAA7134_TS_DMA1, (((dev->ts.nr_packets-1)>>8)&0xff));
+ saa_writeb(SAA7134_TS_DMA2, ((((dev->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;
}
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