forked from luck/tmp_suning_uos_patched
[media] cx23885: initial support for VBI with the cx23885
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>
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@ -46,10 +46,10 @@
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#define AUDIO_SRAM_CHANNEL SRAM_CH07
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#define dprintk(level, fmt, arg...) if (audio_debug >= level) \
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printk(KERN_INFO "%s/1: " fmt, chip->dev->name , ## arg)
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printk(KERN_INFO "%s: " fmt, chip->dev->name , ## arg)
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#define dprintk_core(level, fmt, arg...) if (audio_debug >= level) \
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printk(KERN_DEBUG "%s/1: " fmt, chip->dev->name , ## arg)
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printk(KERN_DEBUG "%s: " fmt, chip->dev->name , ## arg)
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/****************************************************************************
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Module global static vars
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@ -54,7 +54,7 @@ MODULE_PARM_DESC(card, "card type");
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#define dprintk(level, fmt, arg...)\
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do { if (debug >= level)\
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printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
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printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
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} while (0)
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static unsigned int cx23885_devcount;
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@ -62,30 +62,65 @@ int cx23885_vbi_fmt(struct file *file, void *priv,
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return 0;
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}
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/* We're given the Video Interrupt status register.
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* The cx23885_video_irq() func has already validated
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* the potential error bits, we just need to
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* deal with vbi payload and return indication if
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* we actually processed any payload.
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*/
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int cx23885_vbi_irq(struct cx23885_dev *dev, u32 status)
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{
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u32 count;
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int handled = 0;
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if (status & VID_BC_MSK_VBI_RISCI1) {
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dprintk(1, "%s() VID_BC_MSK_VBI_RISCI1\n", __func__);
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spin_lock(&dev->slock);
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count = cx_read(VID_A_GPCNT);
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cx23885_video_wakeup(dev, &dev->vbiq, count);
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spin_unlock(&dev->slock);
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handled++;
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}
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if (status & VID_BC_MSK_VBI_RISCI2) {
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dprintk(1, "%s() VID_BC_MSK_VBI_RISCI2\n", __func__);
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dprintk(2, "stopper vbi\n");
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spin_lock(&dev->slock);
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cx23885_restart_vbi_queue(dev, &dev->vbiq);
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spin_unlock(&dev->slock);
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handled++;
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}
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return handled;
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}
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static int cx23885_start_vbi_dma(struct cx23885_dev *dev,
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struct cx23885_dmaqueue *q,
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struct cx23885_buffer *buf)
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{
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dprintk(1, "%s()\n", __func__);
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/* setup fifo + format */
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cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH02],
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buf->vb.width, buf->risc.dma);
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/* reset counter */
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cx_write(VID_A_GPCNT_CTL, 3);
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q->count = 1;
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/* enable irqs */
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/* enable irq */
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cx23885_irq_add_enable(dev, 0x01);
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cx_set(VID_A_INT_MSK, 0x000022);
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/* start dma */
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cx_set(DEV_CNTRL2, (1<<5));
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cx_set(VID_A_DMA_CTL, 0x00000022);
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cx_set(VID_A_DMA_CTL, 0x22); /* FIFO and RISC enable */
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return 0;
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}
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static int cx23885_restart_vbi_queue(struct cx23885_dev *dev,
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int cx23885_restart_vbi_queue(struct cx23885_dev *dev,
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struct cx23885_dmaqueue *q)
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{
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struct cx23885_buffer *buf;
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@ -115,6 +150,7 @@ void cx23885_vbi_timeout(unsigned long data)
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cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH02]);
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/* Stop the VBI engine */
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cx_clear(VID_A_DMA_CTL, 0x22);
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spin_lock_irqsave(&dev->slock, flags);
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@ -564,6 +564,8 @@ extern void cx23885_free_buffer(struct videobuf_queue *q,
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extern int cx23885_video_register(struct cx23885_dev *dev);
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extern void cx23885_video_unregister(struct cx23885_dev *dev);
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extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status);
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extern void cx23885_video_wakeup(struct cx23885_dev *dev,
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struct cx23885_dmaqueue *q, u32 count);
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/* ----------------------------------------------------------- */
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/* cx23885-vbi.c */
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@ -571,6 +573,9 @@ extern int cx23885_vbi_fmt(struct file *file, void *priv,
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struct v4l2_format *f);
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extern void cx23885_vbi_timeout(unsigned long data);
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extern struct videobuf_queue_ops cx23885_vbi_qops;
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extern int cx23885_restart_vbi_queue(struct cx23885_dev *dev,
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struct cx23885_dmaqueue *q);
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extern int cx23885_vbi_irq(struct cx23885_dev *dev, u32 status);
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/* cx23885-i2c.c */
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extern int cx23885_i2c_register(struct cx23885_i2c *bus);
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