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[media] cx23885: initial support for VBI with the cx23885

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A handlful of coding style issue cleaned up in the following patches.

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Steven Toth 2011-10-10 11:09:54 -03:00 committed by Mauro Carvalho Chehab
parent 6aa07d9e63
commit b5f7405004
4 changed files with 47 additions and 6 deletions
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4
drivers/media/video/cx23885/cx23885-alsa.c
View File

@ -46,10 +46,10 @@
#define AUDIO_SRAM_CHANNEL SRAM_CH07
#define dprintk(level, fmt, arg...) if (audio_debug >= level) \
printk(KERN_INFO "%s/1: " fmt, chip->dev->name , ## arg)
printk(KERN_INFO "%s: " fmt, chip->dev->name , ## arg)
#define dprintk_core(level, fmt, arg...) if (audio_debug >= level) \
printk(KERN_DEBUG "%s/1: " fmt, chip->dev->name , ## arg)
printk(KERN_DEBUG "%s: " fmt, chip->dev->name , ## arg)
/****************************************************************************
Module global static vars

2
drivers/media/video/cx23885/cx23885-core.c
View File

@ -54,7 +54,7 @@ MODULE_PARM_DESC(card, "card type");
#define dprintk(level, fmt, arg...)\
do { if (debug >= level)\
printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
} while (0)
static unsigned int cx23885_devcount;

42
drivers/media/video/cx23885/cx23885-vbi.c
View File

@ -62,30 +62,65 @@ int cx23885_vbi_fmt(struct file *file, void *priv,
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);
q->count = 1;
/* enable irqs */
/* 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, 0x00000022);
cx_set(VID_A_DMA_CTL, 0x22); /* FIFO and RISC enable */
return 0;
}
static int cx23885_restart_vbi_queue(struct cx23885_dev *dev,
int cx23885_restart_vbi_queue(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q)
{
struct cx23885_buffer *buf;
@ -115,6 +150,7 @@ void cx23885_vbi_timeout(unsigned long data)
cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH02]);
/* Stop the VBI engine */
cx_clear(VID_A_DMA_CTL, 0x22);
spin_lock_irqsave(&dev->slock, flags);

5
drivers/media/video/cx23885/cx23885.h
View File

@ -564,6 +564,8 @@ extern void cx23885_free_buffer(struct videobuf_queue *q,
extern int cx23885_video_register(struct cx23885_dev *dev);
extern void cx23885_video_unregister(struct cx23885_dev *dev);
extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status);
extern void cx23885_video_wakeup(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q, u32 count);
/* ----------------------------------------------------------- */
/* cx23885-vbi.c */
@ -571,6 +573,9 @@ extern int cx23885_vbi_fmt(struct file *file, void *priv,
struct v4l2_format *f);
extern void cx23885_vbi_timeout(unsigned long data);
extern struct videobuf_queue_ops cx23885_vbi_qops;
extern int cx23885_restart_vbi_queue(struct cx23885_dev *dev,
struct cx23885_dmaqueue *q);
extern int cx23885_vbi_irq(struct cx23885_dev *dev, u32 status);
/* cx23885-i2c.c */
extern int cx23885_i2c_register(struct cx23885_i2c *bus);