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C++ snd_nm256_writeb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snd_nm256_writeb函数的典型用法代码示例。如果您正苦于以下问题：C++ snd_nm256_writeb函数的具体用法？C++ snd_nm256_writeb怎么用？C++ snd_nm256_writeb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snd_nm256_writeb函数的17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: snd_nm256_interrupt

static irqreturn_t
snd_nm256_interrupt(int irq, void *dev_id, struct pt_regs *dummy)
{
    nm256_t *chip = dev_id;
    u16 status;
    u8 cbyte;

    status = snd_nm256_readw(chip, NM_INT_REG);

    /* Not ours. */
    if (status == 0) {
        snd_nm256_intr_check(chip);
        return IRQ_NONE;
    }

    chip->badintrcount = 0;

    /* Rather boring; check for individual interrupts and process them. */

    spin_lock(&chip->reg_lock);
    if (status & NM_PLAYBACK_INT) {
        status &= ~NM_PLAYBACK_INT;
        NM_ACK_INT(chip, NM_PLAYBACK_INT);
        snd_nm256_playback_update(chip);
    }

    if (status & NM_RECORD_INT) {
        status &= ~NM_RECORD_INT;
        NM_ACK_INT(chip, NM_RECORD_INT);
        snd_nm256_capture_update(chip);
    }

    if (status & NM_MISC_INT_1) {
        status &= ~NM_MISC_INT_1;
        NM_ACK_INT(chip, NM_MISC_INT_1);
        snd_printd("NM256: Got misc interrupt #1\n");
        snd_nm256_writew(chip, NM_INT_REG, 0x8000);
        cbyte = snd_nm256_readb(chip, 0x400);
        snd_nm256_writeb(chip, 0x400, cbyte | 2);
    }

    if (status & NM_MISC_INT_2) {
        status &= ~NM_MISC_INT_2;
        NM_ACK_INT(chip, NM_MISC_INT_2);
        snd_printd("NM256: Got misc interrupt #2\n");
        cbyte = snd_nm256_readb(chip, 0x400);
        snd_nm256_writeb(chip, 0x400, cbyte & ~2);
    }

    /* Unknown interrupt. */
    if (status) {
        snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n",
                   status);
        /* Pray. */
        NM_ACK_INT(chip, status);
    }

    spin_unlock(&chip->reg_lock);
    return IRQ_HANDLED;
}
开发者ID:Dronevery，项目名称:JetsonTK1-kernel，代码行数:60，代码来源:nm256.c


示例2: snd_nm256_ac97_reset

/* initialize the ac97 into a known state */
static void
snd_nm256_ac97_reset(struct snd_ac97 *ac97)
{
	struct nm256 *chip = ac97->private_data;

	/* Reset the mixer.  'Tis magic!  */
	snd_nm256_writeb(chip, 0x6c0, 1);
	if (! chip->reset_workaround) {
		/* Dell latitude LS will lock up by this */
		snd_nm256_writeb(chip, 0x6cc, 0x87);
	}
	if (! chip->reset_workaround_2) {
		/* Dell latitude CSx will lock up by this */
		snd_nm256_writeb(chip, 0x6cc, 0x80);
		snd_nm256_writeb(chip, 0x6cc, 0x0);
	}
	if (! chip->in_resume) {
		int i;
		for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) {
			/* preload the cache, so as to avoid even a single
			 * read of the mixer regs
			 */
			snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg,
					     nm256_ac97_init_val[i].value);
		}
	}
}
开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:28，代码来源:nm256.c


示例3: snd_nm256_set_format

/*
 * set sample rate and format
 */
static void
snd_nm256_set_format(struct nm256 *chip, struct nm256_stream *s,
		     struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	int rate_index = snd_nm256_fixed_rate(runtime->rate);
	unsigned char ratebits = (rate_index << 4) & NM_RATE_MASK;

	s->shift = 0;
	if (snd_pcm_format_width(runtime->format) == 16) {
		ratebits |= NM_RATE_BITS_16;
		s->shift++;
	}
	if (runtime->channels > 1) {
		ratebits |= NM_RATE_STEREO;
		s->shift++;
	}

	runtime->rate = samplerates[rate_index];

	switch (substream->stream) {
	case SNDRV_PCM_STREAM_PLAYBACK:
		snd_nm256_load_coefficient(chip, 0, rate_index); /* 0 = playback */
		snd_nm256_writeb(chip,
				 NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET,
				 ratebits);
		break;
	case SNDRV_PCM_STREAM_CAPTURE:
		snd_nm256_load_coefficient(chip, 1, rate_index); /* 1 = record */
		snd_nm256_writeb(chip,
				 NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET,
				 ratebits);
		break;
	}
}
开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:38，代码来源:nm256.c


示例4: snd_nm256_interrupt

static irqreturn_t
snd_nm256_interrupt(int irq, void *dev_id)
{
	struct nm256 *chip = dev_id;
	u16 status;
	u8 cbyte;

	status = snd_nm256_readw(chip, NM_INT_REG);

	
	if (status == 0)
		return snd_nm256_intr_check(chip);

	chip->badintrcount = 0;

	

	spin_lock(&chip->reg_lock);
	if (status & NM_PLAYBACK_INT) {
		status &= ~NM_PLAYBACK_INT;
		NM_ACK_INT(chip, NM_PLAYBACK_INT);
		snd_nm256_playback_update(chip);
	}

	if (status & NM_RECORD_INT) {
		status &= ~NM_RECORD_INT;
		NM_ACK_INT(chip, NM_RECORD_INT);
		snd_nm256_capture_update(chip);
	}

	if (status & NM_MISC_INT_1) {
		status &= ~NM_MISC_INT_1;
		NM_ACK_INT(chip, NM_MISC_INT_1);
		snd_printd("NM256: Got misc interrupt #1\n");
		snd_nm256_writew(chip, NM_INT_REG, 0x8000);
		cbyte = snd_nm256_readb(chip, 0x400);
		snd_nm256_writeb(chip, 0x400, cbyte | 2);
	}

	if (status & NM_MISC_INT_2) {
		status &= ~NM_MISC_INT_2;
		NM_ACK_INT(chip, NM_MISC_INT_2);
		snd_printd("NM256: Got misc interrupt #2\n");
		cbyte = snd_nm256_readb(chip, 0x400);
		snd_nm256_writeb(chip, 0x400, cbyte & ~2);
	}

	
	if (status) {
		snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n",
			   status);
		
		NM_ACK_INT(chip, status);
	}

	spin_unlock(&chip->reg_lock);
	return IRQ_HANDLED;
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:58，代码来源:nm256.c


示例5: snd_nm256_ac97_reset

/* initialize the ac97 into a known state */
static void
snd_nm256_ac97_reset(ac97_t *ac97)
{
    nm256_t *chip = ac97->private_data;

    /* Reset the mixer.  'Tis magic!  */
    snd_nm256_writeb(chip, 0x6c0, 1);
    if (! chip->reset_workaround) {
        /* Dell latitude LS will lock up by this */
        snd_nm256_writeb(chip, 0x6cc, 0x87);
    }
    snd_nm256_writeb(chip, 0x6cc, 0x80);
    snd_nm256_writeb(chip, 0x6cc, 0x0);
}
开发者ID:Dronevery，项目名称:JetsonTK1-kernel，代码行数:15，代码来源:nm256.c


示例6: snd_nm256_playback_stop

/* Stop the play engine. */
static void
snd_nm256_playback_stop(struct nm256 *chip)
{
	/* Shut off sound from both channels. */
	snd_nm256_writew(chip, NM_AUDIO_MUTE_REG,
			 NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT);
	/* Disable play engine. */
	snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0);
}
开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:10，代码来源:nm256.c


示例7: snd_nm256_playback_stop

static void
snd_nm256_playback_stop(struct nm256 *chip)
{
	
	snd_nm256_writew(chip, NM_AUDIO_MUTE_REG,
			 NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT);
	
	snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0);
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:9，代码来源:nm256.c


示例8: snd_nm256_init_chip

static void
snd_nm256_init_chip(struct nm256 *chip)
{
	
	snd_nm256_writeb(chip, 0x0, 0x11);
	snd_nm256_writew(chip, 0x214, 0);
	
	
	
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:10，代码来源:nm256.c


示例9: snd_nm256_init_chip

/* 
 * Initialize the hardware. 
 */
static void
snd_nm256_init_chip(struct nm256 *chip)
{
	/* Reset everything. */
	snd_nm256_writeb(chip, 0x0, 0x11);
	snd_nm256_writew(chip, 0x214, 0);
	/* stop sounds.. */
	//snd_nm256_playback_stop(chip);
	//snd_nm256_capture_stop(chip);
}
开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:13，代码来源:nm256.c


示例10: snd_nm256_init_chip

/*
 * Initialize the hardware.
 */
static void
snd_nm256_init_chip(nm256_t *chip)
{
    spin_lock_irq(&chip->reg_lock);
    /* Reset everything. */
    snd_nm256_writeb(chip, 0x0, 0x11);
    snd_nm256_writew(chip, 0x214, 0);
    /* stop sounds.. */
    //snd_nm256_playback_stop(chip);
    //snd_nm256_capture_stop(chip);
    spin_unlock_irq(&chip->reg_lock);
}
开发者ID:Dronevery，项目名称:JetsonTK1-kernel，代码行数:15，代码来源:nm256.c


示例11: snd_nm256_capture_start

static void
snd_nm256_capture_start(nm256_t *chip, nm256_stream_t *s, snd_pcm_substream_t *substream)
{
    /* program buffer pointers */
    snd_nm256_writel(chip, NM_RBUFFER_START, s->buf);
    snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size);
    snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf);
    snd_nm256_capture_mark(chip, s);

    /* Enable playback engine and interrupts. */
    snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG,
                     NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN);
}
开发者ID:Dronevery，项目名称:JetsonTK1-kernel，代码行数:13，代码来源:nm256.c


示例12: snd_nm256_capture_start

static void
snd_nm256_capture_start(struct nm256 *chip, struct nm256_stream *s,
			struct snd_pcm_substream *substream)
{
	
	snd_nm256_writel(chip, NM_RBUFFER_START, s->buf);
	snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size);
	snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf);
	snd_nm256_capture_mark(chip, s);

	
	snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG,
			 NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN);
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:14，代码来源:nm256.c


示例13: snd_nm256_playback_start

static void
snd_nm256_playback_start(nm256_t *chip, nm256_stream_t *s, snd_pcm_substream_t *substream)
{
    /* program buffer pointers */
    snd_nm256_writel(chip, NM_PBUFFER_START, s->buf);
    snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift));
    snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf);
    snd_nm256_playback_mark(chip, s);

    /* Enable playback engine and interrupts. */
    snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG,
                     NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN);
    /* Enable both channels. */
    snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0);
}
开发者ID:Dronevery，项目名称:JetsonTK1-kernel，代码行数:15，代码来源:nm256.c


示例14: snd_nm256_ac97_reset

static void
snd_nm256_ac97_reset(struct snd_ac97 *ac97)
{
	struct nm256 *chip = ac97->private_data;

	
	snd_nm256_writeb(chip, 0x6c0, 1);
	if (! chip->reset_workaround) {
		
		snd_nm256_writeb(chip, 0x6cc, 0x87);
	}
	if (! chip->reset_workaround_2) {
		
		snd_nm256_writeb(chip, 0x6cc, 0x80);
		snd_nm256_writeb(chip, 0x6cc, 0x0);
	}
	if (! chip->in_resume) {
		int i;
		for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) {
			snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg,
					     nm256_ac97_init_val[i].value);
		}
	}
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:24，代码来源:nm256.c


示例15: snd_nm256_playback_start

static void
snd_nm256_playback_start(struct nm256 *chip, struct nm256_stream *s,
			 struct snd_pcm_substream *substream)
{
	
	snd_nm256_writel(chip, NM_PBUFFER_START, s->buf);
	snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift));
	snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf);
	snd_nm256_playback_mark(chip, s);

	
	snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG,
			 NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN);
	
	snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0);
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:16，代码来源:nm256.c


示例16: snd_nm256_capture_stop

static void
snd_nm256_capture_stop(struct nm256 *chip)
{
	/* Disable recording engine. */
	snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0);
}
开发者ID:3sOx，项目名称:asuswrt-merlin，代码行数:6，代码来源:nm256.c


示例17: snd_nm256_capture_stop

static void
snd_nm256_capture_stop(struct nm256 *chip)
{
	
	snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0);
}
开发者ID:MiniBlu，项目名称:cm11_kernel_htc_msm8974a3ul，代码行数:6，代码来源:nm256.c



注：本文中的snd_nm256_writeb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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