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C++ saa7146_read函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中saa7146_read函数的典型用法代码示例。如果您正苦于以下问题：C++ saa7146_read函数的具体用法？C++ saa7146_read怎么用？C++ saa7146_read使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了saa7146_read函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: saa7146_wait_for_debi_done_busyloop

static inline int saa7146_wait_for_debi_done_busyloop(struct saa7146_dev *dev,
        unsigned long us1, unsigned long us2)
{
    unsigned long loops;

    /* wait for registers to be programmed */
    loops = us1;
    while (1) {
        if (saa7146_read(dev, MC2) & 2)
            break;
        if (!loops--) {
            printk(KERN_ERR "%s: %s timed out while waiting for "
                   "registers getting programmed\n",
                   dev->name, __func__);
            return -ETIMEDOUT;
        }
        udelay(1);
    }

    /* wait for transfer to complete */
    loops = us2 / 5;
    while (1) {
        if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S))
            break;
        saa7146_read(dev, MC2);
        if (!loops--) {
            DEB_S(("%s: %s timed out while waiting for transfer "
                   "completion\n", dev->name, __func__));
            return -ETIMEDOUT;
        }
        udelay(5);
    }

    return 0;
}
开发者ID:chunyenho，项目名称:RTS-hw2，代码行数:35，代码来源:saa7146_core.c


示例2: interrupt_hw

/* interrupt handler */
static irqreturn_t interrupt_hw(int irq, void *dev_id)
{
	struct saa7146_dev *dev = dev_id;
	u32 isr;
	u32 ack_isr;

	/* read out the interrupt status register */
	ack_isr = isr = saa7146_read(dev, ISR);

	/* is this our interrupt? */
	if ( 0 == isr ) {
		/* nope, some other device */
		return IRQ_NONE;
	}

	if (dev->ext) {
		if (dev->ext->irq_mask & isr) {
			if (dev->ext->irq_func)
				dev->ext->irq_func(dev, &isr);
			isr &= ~dev->ext->irq_mask;
		}
	}
	if (0 != (isr & (MASK_27))) {
		DEB_INT(("irq: RPS0 (0x%08x).\n",isr));
		if (dev->vv_data && dev->vv_callback)
			dev->vv_callback(dev,isr);
		isr &= ~MASK_27;
	}
	if (0 != (isr & (MASK_28))) {
		if (dev->vv_data && dev->vv_callback)
			dev->vv_callback(dev,isr);
		isr &= ~MASK_28;
	}
	if (0 != (isr & (MASK_16|MASK_17))) {
		SAA7146_IER_DISABLE(dev, MASK_16|MASK_17);
		/* only wake up if we expect something */
		if (0 != dev->i2c_op) {
			dev->i2c_op = 0;
			wake_up(&dev->i2c_wq);
		} else {
			u32 psr = saa7146_read(dev, PSR);
			u32 ssr = saa7146_read(dev, SSR);
#ifdef CONFIG_DEBUG_PRINTK
			printk(KERN_WARNING "%s: unexpected i2c irq: isr %08x psr %08x ssr %08x\n",
			       dev->name, isr, psr, ssr);
#else
			;
#endif
		}
		isr &= ~(MASK_16|MASK_17);
	}
	if( 0 != isr ) {
		ERR(("warning: interrupt enabled, but not handled properly.(0x%08x)\n",isr));
		ERR(("disabling interrupt source(s)!\n"));
		SAA7146_IER_DISABLE(dev,isr);
	}
	saa7146_write(dev, ISR, ack_isr);
	return IRQ_HANDLED;
}
开发者ID:Epirex，项目名称:Chrono_Kernel-1，代码行数:60，代码来源:saa7146_core.c


示例3: saa7146_s_ctrl

int saa7146_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct saa7146_dev *dev = container_of(ctrl->handler,
				struct saa7146_dev, ctrl_handler);
	struct saa7146_vv *vv = dev->vv_data;
	u32 val;

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		val = saa7146_read(dev, BCS_CTRL);
		val &= 0x00ffffff;
		val |= (ctrl->val << 24);
		saa7146_write(dev, BCS_CTRL, val);
		saa7146_write(dev, MC2, MASK_22 | MASK_06);
		break;

	case V4L2_CID_CONTRAST:
		val = saa7146_read(dev, BCS_CTRL);
		val &= 0xff00ffff;
		val |= (ctrl->val << 16);
		saa7146_write(dev, BCS_CTRL, val);
		saa7146_write(dev, MC2, MASK_22 | MASK_06);
		break;

	case V4L2_CID_SATURATION:
		val = saa7146_read(dev, BCS_CTRL);
		val &= 0xffffff00;
		val |= (ctrl->val << 0);
		saa7146_write(dev, BCS_CTRL, val);
		saa7146_write(dev, MC2, MASK_22 | MASK_06);
		break;

	case V4L2_CID_HFLIP:
		/* fixme: we can support changing VFLIP and HFLIP here... */
		if ((vv->video_status & STATUS_CAPTURE))
			return -EBUSY;
		vv->hflip = ctrl->val;
		break;

	case V4L2_CID_VFLIP:
		if ((vv->video_status & STATUS_CAPTURE))
			return -EBUSY;
		vv->vflip = ctrl->val;
		break;

	default:
		return -EINVAL;
	}

	if ((vv->video_status & STATUS_OVERLAY) != 0) { /* CHECK: && (vv->video_fh == fh)) */
		struct saa7146_fh *fh = vv->video_fh;

		saa7146_stop_preview(fh);
		saa7146_start_preview(fh);
	}
	return 0;
}
开发者ID:AdrianHuang，项目名称:linux-3.8.13，代码行数:57，代码来源:saa7146_video.c


示例4: interrupt_hw

static irqreturn_t interrupt_hw(int irq, void *dev_id)
{
	struct saa7146_dev *dev = dev_id;
	u32 isr;
	u32 ack_isr;

	
	ack_isr = isr = saa7146_read(dev, ISR);

	
	if ( 0 == isr ) {
		
		return IRQ_NONE;
	}

	if (dev->ext) {
		if (dev->ext->irq_mask & isr) {
			if (dev->ext->irq_func)
				dev->ext->irq_func(dev, &isr);
			isr &= ~dev->ext->irq_mask;
		}
	}
	if (0 != (isr & (MASK_27))) {
		DEB_INT("irq: RPS0 (0x%08x)\n", isr);
		if (dev->vv_data && dev->vv_callback)
			dev->vv_callback(dev,isr);
		isr &= ~MASK_27;
	}
	if (0 != (isr & (MASK_28))) {
		if (dev->vv_data && dev->vv_callback)
			dev->vv_callback(dev,isr);
		isr &= ~MASK_28;
	}
	if (0 != (isr & (MASK_16|MASK_17))) {
		SAA7146_IER_DISABLE(dev, MASK_16|MASK_17);
		
		if (0 != dev->i2c_op) {
			dev->i2c_op = 0;
			wake_up(&dev->i2c_wq);
		} else {
			u32 psr = saa7146_read(dev, PSR);
			u32 ssr = saa7146_read(dev, SSR);
			pr_warn("%s: unexpected i2c irq: isr %08x psr %08x ssr %08x\n",
				dev->name, isr, psr, ssr);
		}
		isr &= ~(MASK_16|MASK_17);
	}
	if( 0 != isr ) {
		ERR("warning: interrupt enabled, but not handled properly.(0x%08x)\n",
		    isr);
		ERR("disabling interrupt source(s)!\n");
		SAA7146_IER_DISABLE(dev,isr);
	}
	saa7146_write(dev, ISR, ack_isr);
	return IRQ_HANDLED;
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:56，代码来源:saa7146_core.c


示例5: vbi_open

static int vbi_open(struct saa7146_dev *dev, struct file *file)
{
    struct saa7146_fh *fh = file->private_data;

    u32 arbtr_ctrl	= saa7146_read(dev, PCI_BT_V1);
    int ret = 0;

    DEB_VBI(("dev:%p, fh:%p\n",dev,fh));

    ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS);
    if (0 == ret) {
        DEB_S(("cannot get vbi RESOURCE_DMA3_BRS resource\n"));
        return -EBUSY;
    }

    /* adjust arbitrition control for video dma 3 */
    arbtr_ctrl &= ~0x1f0000;
    arbtr_ctrl |=  0x1d0000;
    saa7146_write(dev, PCI_BT_V1, arbtr_ctrl);
    saa7146_write(dev, MC2, (MASK_04|MASK_20));

    memset(&fh->vbi_fmt,0,sizeof(fh->vbi_fmt));

    fh->vbi_fmt.sampling_rate	= 27000000;
    fh->vbi_fmt.offset		= 248; /* todo */
    fh->vbi_fmt.samples_per_line	= vbi_pixel_to_capture;
    fh->vbi_fmt.sample_format	= V4L2_PIX_FMT_GREY;

    fh->vbi_fmt.start[0] = 5;
    fh->vbi_fmt.count[0] = 16;
    fh->vbi_fmt.start[1] = 312;
    fh->vbi_fmt.count[1] = 16;

    videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops,
                           &dev->pci->dev, &dev->slock,
                           V4L2_BUF_TYPE_VBI_CAPTURE,
                           V4L2_FIELD_SEQ_TB,
                           sizeof(struct saa7146_buf),
                           file);

    init_timer(&fh->vbi_read_timeout);
    fh->vbi_read_timeout.function = vbi_read_timeout;
    fh->vbi_read_timeout.data = (unsigned long)file;

    /* initialize the brs */
    if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) {
        saa7146_write(dev, BRS_CTRL, MASK_30|MASK_29 | (7 << 19));
    } else {
        saa7146_write(dev, BRS_CTRL, 0x00000001);

        if (0 != (ret = vbi_workaround(dev))) {
            DEB_VBI(("vbi workaround failed!\n"));
            /* return ret;*/
        }
    }

    /* upload brs register */
    saa7146_write(dev, MC2, (MASK_08|MASK_24));
    return 0;
}
开发者ID:daodaoliang，项目名称:miwifi，代码行数:60，代码来源:saa7146_vbi.c


示例6: vpeirq

static void vpeirq (unsigned long data)
{
        struct budget *budget = (struct budget*) data;
        u8 *mem = (u8 *)(budget->grabbing);
        u32 olddma = budget->ttbp;
        u32 newdma = saa7146_read(budget->dev, PCI_VDP3);

        /* nearest lower position divisible by 188 */
        newdma -= newdma % 188;

        if (newdma >= TS_BUFLEN)
                return;

	budget->ttbp = newdma;
	
	if(budget->feeding == 0 || newdma == olddma)
		return;

        if (newdma > olddma) { /* no wraparound, dump olddma..newdma */
                        dvb_dmx_swfilter_packets(&budget->demux, 
        	                mem+olddma, (newdma-olddma) / 188);
        } else { /* wraparound, dump olddma..buflen and 0..newdma */
	                dvb_dmx_swfilter_packets(&budget->demux,
        	                mem+olddma, (TS_BUFLEN-olddma) / 188);
                        dvb_dmx_swfilter_packets(&budget->demux,
                                mem, newdma / 188);
        }
}
开发者ID:FelipeFernandes1988，项目名称:Alice-1121-Modem，代码行数:28，代码来源:budget-core.c


示例7: dump_registers

static void dump_registers(struct saa7146_dev* dev)
{
	int i = 0;

	pr_info(" @ %li jiffies:\n", jiffies);
	for (i = 0; i <= 0x148; i += 4)
		pr_info("0x%03x: 0x%08x\n", i, saa7146_read(dev, i));
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:8，代码来源:saa7146_core.c


示例8: saa7146_setgpio

void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data)
{
    u32 value = 0;

    BUG_ON(port > 3);

    value = saa7146_read(dev, GPIO_CTRL);
    value &= ~(0xff << (8*port));
    value |= (data << (8*port));
    saa7146_write(dev, GPIO_CTRL, value);
}
开发者ID:chunyenho，项目名称:RTS-hw2，代码行数:11，代码来源:saa7146_core.c


示例9: get_control

static int get_control(struct saa7146_fh *fh, struct v4l2_control *c)
{
	struct saa7146_dev *dev = fh->dev;
	struct saa7146_vv *vv = dev->vv_data;

	const struct v4l2_queryctrl* ctrl;
	u32 value = 0;

	ctrl = ctrl_by_id(c->id);
	if (NULL == ctrl)
		return -EINVAL;
	switch (c->id) {
	case V4L2_CID_BRIGHTNESS:
		value = saa7146_read(dev, BCS_CTRL);
		c->value = 0xff & (value >> 24);
		DEB_D(("V4L2_CID_BRIGHTNESS: %d\n",c->value));
		break;
	case V4L2_CID_CONTRAST:
		value = saa7146_read(dev, BCS_CTRL);
		c->value = 0x7f & (value >> 16);
		DEB_D(("V4L2_CID_CONTRAST: %d\n",c->value));
		break;
	case V4L2_CID_SATURATION:
		value = saa7146_read(dev, BCS_CTRL);
		c->value = 0x7f & (value >> 0);
		DEB_D(("V4L2_CID_SATURATION: %d\n",c->value));
		break;
	case V4L2_CID_VFLIP:
		c->value = vv->vflip;
		DEB_D(("V4L2_CID_VFLIP: %d\n",c->value));
		break;
	case V4L2_CID_HFLIP:
		c->value = vv->hflip;
		DEB_D(("V4L2_CID_HFLIP: %d\n",c->value));
		break;
	default:
		return -EINVAL;
	}

	return 0;
}
开发者ID:BackupTheBerlios，项目名称:tew632-brp-svn，代码行数:41，代码来源:saa7146_video.c


示例10: dump_registers

static void dump_registers(struct saa7146_dev* dev)
{
	int i = 0;

	INFO((" @ %li jiffies:\n",jiffies));
	for(i = 0; i <= 0x148; i+=4) {
#ifdef CONFIG_DEBUG_PRINTK
		printk("0x%03x: 0x%08x\n",i,saa7146_read(dev,i));
#else
		;
#endif
	}
}
开发者ID:Epirex，项目名称:Chrono_Kernel-1，代码行数:13，代码来源:saa7146_core.c


示例11: saa7146_wait_for_debi_done_sleep

/* This DEBI code is based on the saa7146 Stradis driver by Nathan Laredo */
static inline int saa7146_wait_for_debi_done_sleep(struct saa7146_dev *dev,
        unsigned long us1, unsigned long us2)
{
    unsigned long timeout;
    int err;

    /* wait for registers to be programmed */
    timeout = jiffies + usecs_to_jiffies(us1);
    while (1) {
        err = time_after(jiffies, timeout);
        if (saa7146_read(dev, MC2) & 2)
            break;
        if (err) {
            printk(KERN_ERR "%s: %s timed out while waiting for "
                   "registers getting programmed\n",
                   dev->name, __func__);
            return -ETIMEDOUT;
        }
        msleep(1);
    }

    /* wait for transfer to complete */
    timeout = jiffies + usecs_to_jiffies(us2);
    while (1) {
        err = time_after(jiffies, timeout);
        if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S))
            break;
        saa7146_read(dev, MC2);
        if (err) {
            DEB_S(("%s: %s timed out while waiting for transfer "
                   "completion\n",	dev->name, __func__));
            return -ETIMEDOUT;
        }
        msleep(1);
    }

    return 0;
}
开发者ID:chunyenho，项目名称:RTS-hw2，代码行数:39，代码来源:saa7146_core.c


示例12: vbi_open

static int vbi_open(struct saa7146_dev *dev, struct file *file)
{
	struct saa7146_fh *fh = file->private_data;
	struct saa7146_vv *vv = fh->dev->vv_data;

	u32 arbtr_ctrl	= saa7146_read(dev, PCI_BT_V1);
	int ret = 0;

	DEB_VBI("dev:%p, fh:%p\n", dev, fh);

	ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS);
	if (0 == ret) {
		DEB_S("cannot get vbi RESOURCE_DMA3_BRS resource\n");
		return -EBUSY;
	}

	/* adjust arbitrition control for video dma 3 */
	arbtr_ctrl &= ~0x1f0000;
	arbtr_ctrl |=  0x1d0000;
	saa7146_write(dev, PCI_BT_V1, arbtr_ctrl);
	saa7146_write(dev, MC2, (MASK_04|MASK_20));

	videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops,
			    &dev->pci->dev, &dev->slock,
			    V4L2_BUF_TYPE_VBI_CAPTURE,
			    V4L2_FIELD_SEQ_TB, // FIXME: does this really work?
			    sizeof(struct saa7146_buf),
			    file, &dev->v4l2_lock);

	vv->vbi_read_timeout.function = vbi_read_timeout;
	vv->vbi_read_timeout.data = (unsigned long)file;

	/* initialize the brs */
	if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) {
		saa7146_write(dev, BRS_CTRL, MASK_30|MASK_29 | (7 << 19));
	} else {
		saa7146_write(dev, BRS_CTRL, 0x00000001);

		if (0 != (ret = vbi_workaround(dev))) {
			DEB_VBI("vbi workaround failed!\n");
			/* return ret;*/
		}
	}

	/* upload brs register */
	saa7146_write(dev, MC2, (MASK_08|MASK_24));
	return 0;
}
开发者ID:03199618，项目名称:linux，代码行数:48，代码来源:saa7146_vbi.c


示例13: vpeirq

static void vpeirq(unsigned long data)
{
	struct budget *budget = (struct budget *) data;
	u8 *mem = (u8 *) (budget->grabbing);
	u32 olddma = budget->ttbp;
	u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
	u32 count;

	/* Ensure streamed PCI data is synced to CPU */
	pci_dma_sync_sg_for_cpu(budget->dev->pci, budget->pt.slist, budget->pt.nents, PCI_DMA_FROMDEVICE);

	/* nearest lower position divisible by 188 */
	newdma -= newdma % 188;

	if (newdma >= budget->buffer_size)
		return;

	budget->ttbp = newdma;

	if (budget->feeding == 0 || newdma == olddma)
		return;

	if (newdma > olddma) {	/* no wraparound, dump olddma..newdma */
		count = newdma - olddma;
		dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
	} else {		/* wraparound, dump olddma..buflen and 0..newdma */
		count = budget->buffer_size - olddma;
		dvb_dmx_swfilter_packets(&budget->demux, mem + olddma, count / 188);
		count += newdma;
		dvb_dmx_swfilter_packets(&budget->demux, mem, newdma / 188);
	}

	if (count > budget->buffer_warning_threshold)
		budget->buffer_warnings++;

	if (budget->buffer_warnings && time_after(jiffies, budget->buffer_warning_time)) {
		printk("%s %s: used %d times >80%% of buffer (%u bytes now)\n",
			budget->dev->name, __func__, budget->buffer_warnings, count);
		budget->buffer_warning_time = jiffies + BUFFER_WARNING_WAIT;
		budget->buffer_warnings = 0;
	}
}
开发者ID:03199618，项目名称:linux，代码行数:42，代码来源:budget-core.c


示例14: ttpci_budget_debiread

int ttpci_budget_debiread(struct budget *budget, u32 config, int addr, int count,
			  int uselocks, int nobusyloop)
{
	struct saa7146_dev *saa = budget->dev;
	int result = 0;
	unsigned long flags = 0;

	if (count > 4 || count <= 0)
		return 0;

	if (uselocks)
		spin_lock_irqsave(&budget->debilock, flags);

	if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
		if (uselocks)
			spin_unlock_irqrestore(&budget->debilock, flags);
		return result;
	}

	saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
	saa7146_write(saa, DEBI_CONFIG, config);
	saa7146_write(saa, DEBI_PAGE, 0);
	saa7146_write(saa, MC2, (2 << 16) | 2);

	if ((result = saa7146_wait_for_debi_done(saa, nobusyloop)) < 0) {
		if (uselocks)
			spin_unlock_irqrestore(&budget->debilock, flags);
		return result;
	}

	result = saa7146_read(saa, DEBI_AD);
	result &= (0xffffffffUL >> ((4 - count) * 8));

	if (uselocks)
		spin_unlock_irqrestore(&budget->debilock, flags);

	return result;
}
开发者ID:03199618，项目名称:linux，代码行数:38，代码来源:budget-core.c


示例15: ttpci_budget_debiread_nolock

static int ttpci_budget_debiread_nolock(struct budget *budget, u32 config,
		int addr, int count, int nobusyloop)
{
	struct saa7146_dev *saa = budget->dev;
	int result;

	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	if (result < 0)
		return result;

	saa7146_write(saa, DEBI_COMMAND, (count << 17) | 0x10000 | (addr & 0xffff));
	saa7146_write(saa, DEBI_CONFIG, config);
	saa7146_write(saa, DEBI_PAGE, 0);
	saa7146_write(saa, MC2, (2 << 16) | 2);

	result = saa7146_wait_for_debi_done(saa, nobusyloop);
	if (result < 0)
		return result;

	result = saa7146_read(saa, DEBI_AD);
	result &= (0xffffffffUL >> ((4 - count) * 8));
	return result;
}
开发者ID:Lyude，项目名称:linux，代码行数:23，代码来源:budget-core.c


示例16: set_control

static int set_control(struct saa7146_fh *fh, struct v4l2_control *c)
{
	struct saa7146_dev *dev = fh->dev;
	struct saa7146_vv *vv = dev->vv_data;

	const struct v4l2_queryctrl* ctrl;

	ctrl = ctrl_by_id(c->id);
	if (NULL == ctrl) {
		DEB_D(("unknown control %d\n",c->id));
		return -EINVAL;
	}

	down(&dev->lock);

	switch (ctrl->type) {
	case V4L2_CTRL_TYPE_BOOLEAN:
	case V4L2_CTRL_TYPE_MENU:
	case V4L2_CTRL_TYPE_INTEGER:
		if (c->value < ctrl->minimum)
			c->value = ctrl->minimum;
		if (c->value > ctrl->maximum)
			c->value = ctrl->maximum;
		break;
	default:
		/* nothing */;
	};

	switch (c->id) {
	case V4L2_CID_BRIGHTNESS: {
		u32 value = saa7146_read(dev, BCS_CTRL);
		value &= 0x00ffffff;
		value |= (c->value << 24);
		saa7146_write(dev, BCS_CTRL, value);
		saa7146_write(dev, MC2, MASK_22 | MASK_06 );
		break;
	}
	case V4L2_CID_CONTRAST: {
		u32 value = saa7146_read(dev, BCS_CTRL);
		value &= 0xff00ffff;
		value |= (c->value << 16);
		saa7146_write(dev, BCS_CTRL, value);
		saa7146_write(dev, MC2, MASK_22 | MASK_06 );
		break;
	}
	case V4L2_CID_SATURATION: {
		u32 value = saa7146_read(dev, BCS_CTRL);
		value &= 0xffffff00;
		value |= (c->value << 0);
		saa7146_write(dev, BCS_CTRL, value);
		saa7146_write(dev, MC2, MASK_22 | MASK_06 );
		break;
	}
	case V4L2_CID_HFLIP:
		/* fixme: we can support changing VFLIP and HFLIP here... */
		if (IS_CAPTURE_ACTIVE(fh) != 0) {
			DEB_D(("V4L2_CID_HFLIP while active capture.\n"));
			up(&dev->lock);
			return -EINVAL;
		}
		vv->hflip = c->value;
		break;
	case V4L2_CID_VFLIP:
		if (IS_CAPTURE_ACTIVE(fh) != 0) {
			DEB_D(("V4L2_CID_VFLIP while active capture.\n"));
			up(&dev->lock);
			return -EINVAL;
		}
		vv->vflip = c->value;
		break;
	default: {
		return -EINVAL;
	}
	}
	up(&dev->lock);

	if (IS_OVERLAY_ACTIVE(fh) != 0) {
		saa7146_stop_preview(fh);
		saa7146_start_preview(fh);
	}
	return 0;
}
开发者ID:BackupTheBerlios，项目名称:tew632-brp-svn，代码行数:82，代码来源:saa7146_video.c


示例17: vbi_workaround


//.........这里部分代码省略.........
	saa7146_write(dev, BASE_PAGE3,	0x0);
	saa7146_write(dev, NUM_LINE_BYTE3, (2<<16)|((vbi_pixel_to_capture)<<0));
	saa7146_write(dev, MC2, MASK_04|MASK_20);

	/* load brs-control register */
	WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4));
	/* BXO = 1h, BRS to outbound */
	WRITE_RPS1(0xc000008c);
	/* wait for vbi_a or vbi_b*/
	if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) {
		DEB_D("...using port b\n");
		WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_E_FID_B);
		WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_O_FID_B);
/*
		WRITE_RPS1(CMD_PAUSE | MASK_09);
*/
	} else {
		DEB_D("...using port a\n");
		WRITE_RPS1(CMD_PAUSE | MASK_10);
	}
	/* upload brs */
	WRITE_RPS1(CMD_UPLOAD | MASK_08);
	/* load brs-control register */
	WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4));
	/* BYO = 1, BXO = NQBIL (=1728 for PAL, for NTSC this is 858*2) - NumByte3 (=1440) = 288 */
	WRITE_RPS1(((1728-(vbi_pixel_to_capture)) << 7) | MASK_19);
	/* wait for brs_done */
	WRITE_RPS1(CMD_PAUSE | MASK_08);
	/* upload brs */
	WRITE_RPS1(CMD_UPLOAD | MASK_08);
	/* load video-dma3 NumLines3 and NumBytes3 */
	WRITE_RPS1(CMD_WR_REG | (1 << 8) | (NUM_LINE_BYTE3/4));
	/* dev->vbi_count*2 lines, 720 pixel (= 1440 Bytes) */
	WRITE_RPS1((2 << 16) | (vbi_pixel_to_capture));
	/* load brs-control register */
	WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4));
	/* Set BRS right: note: this is an experimental value for BXO (=> PAL!) */
	WRITE_RPS1((540 << 7) | (5 << 19));  // 5 == vbi_start
	/* wait for brs_done */
	WRITE_RPS1(CMD_PAUSE | MASK_08);
	/* upload brs and video-dma3*/
	WRITE_RPS1(CMD_UPLOAD | MASK_08 | MASK_04);
	/* load mc2 register: enable dma3 */
	WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC1/4));
	WRITE_RPS1(MASK_20 | MASK_04);
	/* generate interrupt */
	WRITE_RPS1(CMD_INTERRUPT);
	/* stop rps1 */
	WRITE_RPS1(CMD_STOP);

	/* we have to do the workaround twice to be sure that
	   everything is ok */
	for(i = 0; i < 2; i++) {

		/* indicate to the irq handler that we do the workaround */
		saa7146_write(dev, MC2, MASK_31|MASK_15);

		saa7146_write(dev, NUM_LINE_BYTE3, (1<<16)|(2<<0));
		saa7146_write(dev, MC2, MASK_04|MASK_20);

		/* enable rps1 irqs */
		SAA7146_IER_ENABLE(dev,MASK_28);

		/* prepare to wait to be woken up by the irq-handler */
		add_wait_queue(&vv->vbi_wq, &wait);
		current->state = TASK_INTERRUPTIBLE;

		/* start rps1 to enable workaround */
		saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
		saa7146_write(dev, MC1, (MASK_13 | MASK_29));

		schedule();

		DEB_VBI("brs bug workaround %d/1\n", i);

		remove_wait_queue(&vv->vbi_wq, &wait);
		current->state = TASK_RUNNING;

		/* disable rps1 irqs */
		SAA7146_IER_DISABLE(dev,MASK_28);

		/* stop video-dma3 */
		saa7146_write(dev, MC1, MASK_20);

		if(signal_pending(current)) {

			DEB_VBI("aborted (rps:0x%08x)\n",
				saa7146_read(dev, RPS_ADDR1));

			/* stop rps1 for sure */
			saa7146_write(dev, MC1, MASK_29);

			pci_free_consistent(dev->pci, 4096, cpu, dma_addr);
			return -EINTR;
		}
	}

	pci_free_consistent(dev->pci, 4096, cpu, dma_addr);
	return 0;
}
开发者ID:03199618，项目名称:linux，代码行数:101，代码来源:saa7146_vbi.c


示例18: start_ts_capture

static int start_ts_capture(struct budget *budget)
{
	struct saa7146_dev *dev = budget->dev;

	dprintk(2, "budget: %p\n", budget);

	if (!budget->feeding || !budget->fe_synced)
		return 0;

	saa7146_write(dev, MC1, MASK_20);	

	memset(budget->grabbing, 0x00, budget->buffer_size);

	saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));

	budget->ttbp = 0;


	switch(budget->card->type) {
	case BUDGET_FS_ACTIVY:
		saa7146_write(dev, DD1_INIT, 0x04000000);
		saa7146_write(dev, MC2, (MASK_09 | MASK_25));
		saa7146_write(dev, BRS_CTRL, 0x00000000);
		break;
	case BUDGET_PATCH:
		saa7146_write(dev, DD1_INIT, 0x00000200);
		saa7146_write(dev, MC2, (MASK_10 | MASK_26));
		saa7146_write(dev, BRS_CTRL, 0x60000000);
		break;
	case BUDGET_CIN1200C_MK3:
	case BUDGET_KNC1C_MK3:
	case BUDGET_KNC1C_TDA10024:
	case BUDGET_KNC1CP_MK3:
		if (budget->video_port == BUDGET_VIDEO_PORTA) {
			saa7146_write(dev, DD1_INIT, 0x06000200);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x00000000);
		} else {
			saa7146_write(dev, DD1_INIT, 0x00000600);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x60000000);
		}
		break;
	default:
		if (budget->video_port == BUDGET_VIDEO_PORTA) {
			saa7146_write(dev, DD1_INIT, 0x06000200);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x00000000);
		} else {
			saa7146_write(dev, DD1_INIT, 0x02000600);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x60000000);
		}
	}

	saa7146_write(dev, MC2, (MASK_08 | MASK_24));
	mdelay(10);

	saa7146_write(dev, BASE_ODD3, 0);
	if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
		
		saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
	} else {
		
		saa7146_write(dev, BASE_EVEN3, 0);
	}
	saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
	saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);

	saa7146_write(dev, PITCH3, budget->buffer_width);
	saa7146_write(dev, NUM_LINE_BYTE3,
			(budget->buffer_height << 16) | budget->buffer_width);

	saa7146_write(dev, MC2, (MASK_04 | MASK_20));

	SAA7146_ISR_CLEAR(budget->dev, MASK_10);	
	SAA7146_IER_ENABLE(budget->dev, MASK_10);	
	saa7146_write(dev, MC1, (MASK_04 | MASK_20));	

	return 0;
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:81，代码来源:budget-core.c


示例19: start_ts_capture

static int start_ts_capture (struct budget *budget)
{
        struct saa7146_dev *dev=budget->dev;

	DEB_EE(("budget: %p\n",budget));

        if (budget->feeding) 
                return ++budget->feeding;

      	saa7146_write(dev, MC1, MASK_20); // DMA3 off

        memset(budget->grabbing, 0x00, TS_HEIGHT*TS_WIDTH);

        saa7146_write(dev, PCI_BT_V1, 0x001c0000 |
            (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));

        budget->tsf=0xff;
        budget->ttbp=0;

	/*
	 *  Signal path on the Activy:
	 *
	 *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
	 *
	 *  Since the tuner feeds 204 bytes packets into the SAA7146,
	 *  DMA3 is configured to strip the trailing 16 FEC bytes:
	 *	Pitch: 188, NumBytes3: 188, NumLines3: 1024
	 */

	if (budget->card->type == BUDGET_FS_ACTIVY) {
		saa7146_write(dev, DD1_INIT, 0x04000000);
		saa7146_write(dev, MC2, (MASK_09 | MASK_25));
		saa7146_write(dev, BRS_CTRL, 0x00000000);
	} else {
		if (budget->video_port == BUDGET_VIDEO_PORTA) {
			saa7146_write(dev, DD1_INIT, 0x06000200);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x00000000);
		} else {
        saa7146_write(dev, DD1_INIT, 0x02000600);
        saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
        saa7146_write(dev, BRS_CTRL, 0x60000000);	
		}
	}

      	saa7146_write(dev, MC2, (MASK_08 | MASK_24));
        mdelay(10);

        saa7146_write(dev, BASE_ODD3, 0);
        saa7146_write(dev, BASE_EVEN3, 0);
        saa7146_write(dev, PROT_ADDR3, TS_WIDTH*TS_HEIGHT);	
        saa7146_write(dev, BASE_PAGE3, budget->pt.dma |ME1|0x90);

	if (budget->card->type == BUDGET_FS_ACTIVY) {
		saa7146_write(dev, PITCH3, TS_WIDTH/2);
		saa7146_write(dev, NUM_LINE_BYTE3, ((TS_HEIGHT*2)<<16)|(TS_WIDTH/2));
	} else {
		saa7146_write(dev, PITCH3, TS_WIDTH);
        saa7146_write(dev, NUM_LINE_BYTE3, (TS_HEIGHT<<16)|TS_WIDTH);
	}

      	saa7146_write(dev, MC2, (MASK_04 | MASK_20));
     	saa7146_write(dev, MC1, (MASK_04 | MASK_20)); // DMA3 on

	IER_ENABLE(budget->dev, MASK_10); // VPE

        return ++budget->feeding;
}
开发者ID:FelipeFernandes1988，项目名称:Alice-1121-Modem，代码行数:68，代码来源:budget-core.c


示例20: start_ts_capture

static int start_ts_capture(struct budget *budget)
{
	struct saa7146_dev *dev = budget->dev;

	dprintk(2, "budget: %p\n", budget);

	if (!budget->feeding || !budget->fe_synced)
		return 0;

	saa7146_write(dev, MC1, MASK_20);	// DMA3 off

	memset(budget->grabbing, 0x00, budget->buffer_size);

	saa7146_write(dev, PCI_BT_V1, 0x001c0000 | (saa7146_read(dev, PCI_BT_V1) & ~0x001f0000));

	budget->ttbp = 0;

	/*
	 *  Signal path on the Activy:
	 *
	 *  tuner -> SAA7146 port A -> SAA7146 BRS -> SAA7146 DMA3 -> memory
	 *
	 *  Since the tuner feeds 204 bytes packets into the SAA7146,
	 *  DMA3 is configured to strip the trailing 16 FEC bytes:
	 *      Pitch: 188, NumBytes3: 188, NumLines3: 1024
	 */

	switch(budget->card->type) {
	case BUDGET_FS_ACTIVY:
		saa7146_write(dev, DD1_INIT, 0x04000000);
		saa7146_write(dev, MC2, (MASK_09 | MASK_25));
		saa7146_write(dev, BRS_CTRL, 0x00000000);
		break;
	case BUDGET_PATCH:
		saa7146_write(dev, DD1_INIT, 0x00000200);
		saa7146_write(dev, MC2, (MASK_10 | MASK_26));
		saa7146_write(dev, BRS_CTRL, 0x60000000);
		break;
	case BUDGET_CIN1200C_MK3:
	case BUDGET_KNC1C_MK3:
	case BUDGET_KNC1C_TDA10024:
	case BUDGET_KNC1CP_MK3:
		if (budget->video_port == BUDGET_VIDEO_PORTA) {
			saa7146_write(dev, DD1_INIT, 0x06000200);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x00000000);
		} else {
			saa7146_write(dev, DD1_INIT, 0x00000600);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x60000000);
		}
		break;
	default:
		if (budget->video_port == BUDGET_VIDEO_PORTA) {
			saa7146_write(dev, DD1_INIT, 0x06000200);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x00000000);
		} else {
			saa7146_write(dev, DD1_INIT, 0x02000600);
			saa7146_write(dev, MC2, (MASK_09 | MASK_25 | MASK_10 | MASK_26));
			saa7146_write(dev, BRS_CTRL, 0x60000000);
		}
	}

	saa7146_write(dev, MC2, (MASK_08 | MASK_24));
	mdelay(10);

	saa7146_write(dev, BASE_ODD3, 0);
	if (budget->buffer_size > budget->buffer_height * budget->buffer_width) {
		// using odd/even buffers
		saa7146_write(dev, BASE_EVEN3, budget->buffer_height * budget->buffer_width);
	} else {
		// using a single buffer
		saa7146_write(dev, BASE_EVEN3, 0);
	}
	saa7146_write(dev, PROT_ADDR3, budget->buffer_size);
	saa7146_write(dev, BASE_PAGE3, budget->pt.dma | ME1 | 0x90);

	saa7146_write(dev, PITCH3, budget->buffer_width);
	saa7146_write(dev, NUM_LINE_BYTE3,
			(budget->buffer_height << 16) | budget->buffer_width);

	saa7146_write(dev, MC2, (MASK_04 | MASK_20));

	SAA7146_ISR_CLEAR(budget->dev, MASK_10);	/* VPE */
	SAA7146_IER_ENABLE(budget->dev, MASK_10);	/* VPE */
	saa7146_write(dev, MC1, (MASK_04 | MASK_20));	/* DMA3 on */

	return 0;
}
开发者ID:03199618，项目名称:linux，代码行数:90，代码来源:budget-core.c



注：本文中的saa7146_read函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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