[ALSA] Adds Capture to P16V chip. (6e4abc40) · Commits · git / linux-net

include/sound/emu10k1.h

+4 −1

Original line number	Diff line number	Diff line
		@@ -83,7 +83,8 @@
		#define IPR 0x08 /* Global interrupt pending register */
		/* Clear pending interrupts by writing a 1 to */
		/* the relevant bits and zero to the other bits */

		#define IPR_P16V 0x80000000 /* Bit set when the CA0151 P16V chip wishes
		to interrupt */
		#define IPR_GPIOMSG 0x20000000 /* GPIO message interrupt (RE'd, still not sure
		which INTE bits enable it) */

		@@ -1109,7 +1110,9 @@ struct _snd_emu10k1 {

		emu10k1_voice_t voices[NUM_G];
		emu10k1_voice_t p16v_voices[4];
		emu10k1_voice_t p16v_capture_voice;
		int p16v_device_offset;
		u32 p16v_capture_source;
		emu10k1_pcm_mixer_t pcm_mixer[32];
		emu10k1_pcm_mixer_t efx_pcm_mixer[NUM_EFX_PLAYBACK];
		snd_kcontrol_t *ctl_send_routing;

sound/pci/emu10k1/irq.c

+29 −17

Original line number	Diff line number	Diff line
		@@ -37,7 +37,7 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void dev_id, struct pt_regs regs)
		int handled = 0;

		while ((status = inl(emu->port + IPR)) != 0) {
		// printk("irq - status = 0x%x\n", status);
		//printk("emu10k1 irq - status = 0x%x\n", status);
		orig_status = status;
		handled = 1;
		if (status & IPR_PCIERROR) {
		@@ -147,9 +147,36 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void dev_id, struct pt_regs regs)
		snd_emu10k1_intr_disable(emu, INTE_FXDSPENABLE);
		status &= ~IPR_FXDSP;
		}
		if (status & IPR_P16V) {
		while ((status2 = inl(emu->port + IPR2)) != 0) {
		u32 mask = INTE2_PLAYBACK_CH_0_LOOP; /* Full Loop */
		emu10k1_voice_t *pvoice = &(emu->p16v_voices[0]);
		emu10k1_voice_t *cvoice = &(emu->p16v_capture_voice);

		//printk(KERN_INFO "status2=0x%x\n", status2);
		orig_status2 = status2;
		if(status2 & mask) {
		if(pvoice->use) {
		snd_pcm_period_elapsed(pvoice->epcm->substream);
		} else {
		snd_printk(KERN_ERR "p16v: status: 0x%08x, mask=0x%08x, pvoice=%p, use=%d\n", status2, mask, pvoice, pvoice->use);
		}
		}
		if(status2 & 0x110000) {
		//printk(KERN_INFO "capture int found\n");
		if(cvoice->use) {
		//printk(KERN_INFO "capture period_elapsed\n");
		snd_pcm_period_elapsed(cvoice->epcm->substream);
		}
		}
		outl(orig_status2, emu->port + IPR2); /* ack all */
		}
		status &= ~IPR_P16V;
		}

		if (status) {
		unsigned int bits;
		//snd_printk(KERN_ERR "emu10k1: unhandled interrupt: 0x%08x\n", status);
		snd_printk(KERN_ERR "emu10k1: unhandled interrupt: 0x%08x\n", status);
		//make sure any interrupts we don't handle are disabled:
		bits = INTE_FXDSPENABLE \|
		INTE_PCIERRORENABLE \|
		@@ -170,20 +197,5 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void dev_id, struct pt_regs regs)
		}
		outl(orig_status, emu->port + IPR); /* ack all */
		}
		if (emu->audigy && emu->revision == 4) { /* P16V */
		while ((status2 = inl(emu->port + IPR2)) != 0) {
		u32 mask = INTE2_PLAYBACK_CH_0_LOOP; /* Full Loop */
		emu10k1_voice_t *pvoice = &(emu->p16v_voices[0]);
		orig_status2 = status2;
		if(status2 & mask) {
		if(pvoice->use) {
		snd_pcm_period_elapsed(pvoice->epcm->substream);
		} else {
		snd_printk(KERN_ERR "p16v: status: 0x%08x, mask=0x%08x, pvoice=%p, use=%d\n", status2, mask, pvoice, pvoice->use);
		}
		}
		outl(orig_status2, emu->port + IPR2); /* ack all */
		}
		}
		return IRQ_RETVAL(handled);
		}

sound/pci/emu10k1/p16v.c

+242 −15

Original line number	Diff line number	Diff line
		@@ -132,9 +132,29 @@ static snd_pcm_hardware_t snd_p16v_playback_hw = {
		.fifo_size = 0,
		};

		static snd_pcm_hardware_t snd_p16v_capture_hw = {
		.info = (SNDRV_PCM_INFO_MMAP \|
		SNDRV_PCM_INFO_INTERLEAVED \|
		SNDRV_PCM_INFO_BLOCK_TRANSFER \|
		SNDRV_PCM_INFO_MMAP_VALID),
		.formats = SNDRV_PCM_FMTBIT_S32_LE,
		.rates = SNDRV_PCM_RATE_48000,
		.rate_min = 48000,
		.rate_max = 48000,
		.channels_min = 2,
		.channels_max = 2,
		.buffer_bytes_max = (32*1024),
		.period_bytes_min = 64,
		.period_bytes_max = (16*1024),
		.periods_min = 2,
		.periods_max = 2,
		.fifo_size = 0,
		};


		static void snd_p16v_pcm_free_substream(snd_pcm_runtime_t *runtime)
		{
		snd_pcm_t *epcm = runtime->private_data;
		emu10k1_pcm_t *epcm = runtime->private_data;

		if (epcm) {
		//snd_printk("epcm free: %p\n", epcm);
		@@ -178,6 +198,43 @@ static int snd_p16v_pcm_open_playback_channel(snd_pcm_substream_t *substream, in

		return 0;
		}
		/* open_capture callback */
		static int snd_p16v_pcm_open_capture_channel(snd_pcm_substream_t *substream, int channel_id)
		{
		emu10k1_t *emu = snd_pcm_substream_chip(substream);
		emu10k1_voice_t *channel = &(emu->p16v_capture_voice);
		emu10k1_pcm_t *epcm;
		snd_pcm_runtime_t *runtime = substream->runtime;
		int err;

		epcm = kcalloc(1, sizeof(*epcm), GFP_KERNEL);
		//snd_printk("epcm kcalloc: %p\n", epcm);

		if (epcm == NULL)
		return -ENOMEM;
		epcm->emu = emu;
		epcm->substream = substream;
		//snd_printk("epcm device=%d, channel_id=%d\n", substream->pcm->device, channel_id);

		runtime->private_data = epcm;
		runtime->private_free = snd_p16v_pcm_free_substream;

		runtime->hw = snd_p16v_capture_hw;

		channel->emu = emu;
		channel->number = channel_id;

		channel->use=1;
		//snd_printk("p16v: open channel_id=%d, channel=%p, use=0x%x\n", channel_id, channel, channel->use);
		//printk("open:channel_id=%d, chip=%p, channel=%p\n",channel_id, chip, channel);
		//channel->interrupt = snd_p16v_pcm_channel_interrupt;
		channel->epcm=epcm;
		if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
		return err;

		return 0;
		}


		/* close callback */
		static int snd_p16v_pcm_close_playback(snd_pcm_substream_t *substream)
		@@ -190,41 +247,71 @@ static int snd_p16v_pcm_close_playback(snd_pcm_substream_t *substream)
		return 0;
		}

		/* close callback */
		static int snd_p16v_pcm_close_capture(snd_pcm_substream_t *substream)
		{
		emu10k1_t *emu = snd_pcm_substream_chip(substream);
		//snd_pcm_runtime_t *runtime = substream->runtime;
		//emu10k1_pcm_t *epcm = runtime->private_data;
		emu->p16v_capture_voice.use=0;
		/* FIXME: maybe zero others */
		return 0;
		}

		static int snd_p16v_pcm_open_playback_front(snd_pcm_substream_t *substream)
		{
		return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
		}

		static int snd_p16v_pcm_open_capture(snd_pcm_substream_t *substream)
		{
		// Only using channel 0 for now, but the card has 2 channels.
		return snd_p16v_pcm_open_capture_channel(substream, 0);
		}

		/* hw_params callback */
		static int snd_p16v_pcm_hw_params_playback(snd_pcm_substream_t *substream,
		snd_pcm_hw_params_t * hw_params)
		{
		int result;
		//snd_printk("hw_params alloc: substream=%p\n", substream);
		result = snd_pcm_lib_malloc_pages(substream,
		params_buffer_bytes(hw_params));
		//snd_printk("hw_params alloc: result=%d\n", result);
		//dump_stack();
		return result;
		}

		/* hw_params callback */
		static int snd_p16v_pcm_hw_params_capture(snd_pcm_substream_t *substream,
		snd_pcm_hw_params_t * hw_params)
		{
		int result;
		result = snd_pcm_lib_malloc_pages(substream,
		params_buffer_bytes(hw_params));
		return result;
		}


		/* hw_free callback */
		static int snd_p16v_pcm_hw_free_playback(snd_pcm_substream_t *substream)
		{
		int result;
		//snd_printk("hw_params free: substream=%p\n", substream);
		result = snd_pcm_lib_free_pages(substream);
		//snd_printk("hw_params free: result=%d\n", result);
		//dump_stack();
		return result;
		}

		/* hw_free callback */
		static int snd_p16v_pcm_hw_free_capture(snd_pcm_substream_t *substream)
		{
		int result;
		result = snd_pcm_lib_free_pages(substream);
		return result;
		}


		/* prepare playback callback */
		static int snd_p16v_pcm_prepare_playback(snd_pcm_substream_t *substream)
		{
		emu10k1_t *emu = snd_pcm_substream_chip(substream);
		snd_pcm_runtime_t *runtime = substream->runtime;
		//emu10k1_pcm_t *epcm = runtime->private_data;
		int channel = substream->pcm->device - emu->p16v_device_offset;
		u32 table_base = (u32 )(emu->p16v_buffer.area+(816channel));
		u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
		@@ -270,6 +357,23 @@ static int snd_p16v_pcm_prepare_playback(snd_pcm_substream_t *substream)
		return 0;
		}

		/* prepare capture callback */
		static int snd_p16v_pcm_prepare_capture(snd_pcm_substream_t *substream)
		{
		emu10k1_t *emu = snd_pcm_substream_chip(substream);
		snd_pcm_runtime_t *runtime = substream->runtime;
		int channel = substream->pcm->device - emu->p16v_device_offset;
		//printk("prepare:channel_number=%d, rate=%d, format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, frames_to_bytes=%d\n",channel, runtime->rate, runtime->format, runtime->channels, runtime->buffer_size, runtime->period_size, frames_to_bytes(runtime, 1));
		snd_emu10k1_ptr20_write(emu, 0x13, channel, 0);
		snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
		snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes
		snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
		//snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
		//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) \| (0x110000<<channel));

		return 0;
		}

		static void snd_p16v_intr_enable(emu10k1_t *emu, unsigned int intrenb)
		{
		unsigned long flags;
		@@ -345,6 +449,36 @@ static int snd_p16v_pcm_trigger_playback(snd_pcm_substream_t *substream,
		return result;
		}

		/* trigger_capture callback */
		static int snd_p16v_pcm_trigger_capture(snd_pcm_substream_t *substream,
		int cmd)
		{
		emu10k1_t *emu = snd_pcm_substream_chip(substream);
		snd_pcm_runtime_t *runtime = substream->runtime;
		emu10k1_pcm_t *epcm = runtime->private_data;
		int channel = 0;
		int result = 0;
		u32 inte = INTE2_CAPTURE_CH_0_LOOP \| INTE2_CAPTURE_CH_0_HALF_LOOP;

		switch (cmd) {
		case SNDRV_PCM_TRIGGER_START:
		snd_p16v_intr_enable(emu, inte);
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)\|(0x100<<channel));
		epcm->running = 1;
		break;
		case SNDRV_PCM_TRIGGER_STOP:
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
		snd_p16v_intr_disable(emu, inte);
		//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
		epcm->running = 0;
		break;
		default:
		result = -EINVAL;
		break;
		}
		return result;
		}

		/* pointer_playback callback */
		static snd_pcm_uframes_t
		snd_p16v_pcm_pointer_playback(snd_pcm_substream_t *substream)
		@@ -370,6 +504,31 @@ snd_p16v_pcm_pointer_playback(snd_pcm_substream_t *substream)
		return ptr;
		}

		/* pointer_capture callback */
		static snd_pcm_uframes_t
		snd_p16v_pcm_pointer_capture(snd_pcm_substream_t *substream)
		{
		emu10k1_t *emu = snd_pcm_substream_chip(substream);
		snd_pcm_runtime_t *runtime = substream->runtime;
		emu10k1_pcm_t *epcm = runtime->private_data;
		snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
		int channel = 0;

		if (!epcm->running)
		return 0;

		ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
		ptr2 = bytes_to_frames(runtime, ptr1);
		ptr=ptr2;
		if (ptr >= runtime->buffer_size) {
		ptr -= runtime->buffer_size;
		printk("buffer capture limited!\n");
		}
		//printk("ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n", ptr1, ptr2, ptr, (int)runtime->buffer_size, (int)runtime->period_size, (int)runtime->frame_bits, (int)runtime->rate);

		return ptr;
		}

		/* operators */
		static snd_pcm_ops_t snd_p16v_playback_front_ops = {
		.open = snd_p16v_pcm_open_playback_front,
		@@ -382,6 +541,18 @@ static snd_pcm_ops_t snd_p16v_playback_front_ops = {
		.pointer = snd_p16v_pcm_pointer_playback,
		};

		static snd_pcm_ops_t snd_p16v_capture_ops = {
		.open = snd_p16v_pcm_open_capture,
		.close = snd_p16v_pcm_close_capture,
		.ioctl = snd_pcm_lib_ioctl,
		.hw_params = snd_p16v_pcm_hw_params_capture,
		.hw_free = snd_p16v_pcm_hw_free_capture,
		.prepare = snd_p16v_pcm_prepare_capture,
		.trigger = snd_p16v_pcm_trigger_capture,
		.pointer = snd_p16v_pcm_pointer_capture,
		};


		int snd_p16v_free(emu10k1_t *chip)
		{
		// release the data
		@@ -405,20 +576,22 @@ int snd_p16v_pcm(emu10k1_t emu, int device, snd_pcm_t *rpcm)
		snd_pcm_t *pcm;
		snd_pcm_substream_t *substream;
		int err;
		int capture=0;
		int capture=1;

		//snd_printk("snd_p16v_pcm called. device=%d\n", device);
		emu->p16v_device_offset = device;
		if (rpcm)
		*rpcm = NULL;
		//if (device == 0) capture=1;

		if ((err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm)) < 0)
		return err;

		pcm->private_data = emu;
		pcm->private_free = snd_p16v_pcm_free;

		// Single playback 8 channel device.
		// Single capture 2 channel device.
		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);

		pcm->info_flags = 0;
		pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
		@@ -694,6 +867,56 @@ static snd_kcontrol_new_t snd_p16v_volume_control_spdif_rear =
		.put = snd_p16v_volume_put_spdif_rear
		};

		static int snd_p16v_capture_source_info(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
		{
		static char *texts[8] = { "SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S", "CDIF", "FX", "AC97" };

		uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
		uinfo->count = 1;
		uinfo->value.enumerated.items = 8;
		if (uinfo->value.enumerated.item > 7)
		uinfo->value.enumerated.item = 7;
		strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
		return 0;
		}

		static int snd_p16v_capture_source_get(snd_kcontrol_t * kcontrol,
		snd_ctl_elem_value_t * ucontrol)
		{
		emu10k1_t *emu = snd_kcontrol_chip(kcontrol);

		ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
		return 0;
		}

		static int snd_p16v_capture_source_put(snd_kcontrol_t * kcontrol,
		snd_ctl_elem_value_t * ucontrol)
		{
		emu10k1_t *emu = snd_kcontrol_chip(kcontrol);
		unsigned int val;
		int change = 0;
		u32 mask;
		u32 source;

		val = ucontrol->value.enumerated.item[0] ;
		change = (emu->p16v_capture_source != val);
		if (change) {
		emu->p16v_capture_source = val;
		source = (val << 28) \| (val << 24) \| (val << 20) \| (val << 16);
		mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source \| mask);
		}
		return change;
		}

		static snd_kcontrol_new_t snd_p16v_capture_source __devinitdata =
		{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "HD Capture source",
		.info = snd_p16v_capture_source_info,
		.get = snd_p16v_capture_source_get,
		.put = snd_p16v_capture_source_put
		};
		int snd_p16v_mixer(emu10k1_t *emu)
		{
		int err;
		@@ -731,6 +954,10 @@ int snd_p16v_mixer(emu10k1_t *emu)
		return -ENOMEM;
		if ((err = snd_ctl_add(card, kctl)))
		return err;
		if ((kctl = snd_ctl_new1(&snd_p16v_capture_source, emu)) == NULL)
		return -ENOMEM;
		if ((err = snd_ctl_add(card, kctl)))
		return err;
		return 0;
		}