C++ (Cpp) unregister_sst_card Examples

Example #1

File: sst_platform.c Project: CSCLOG/beaglebone

static int sst_platform_close(struct snd_pcm_substream *substream)
{
	struct sst_runtime_stream *stream;
	int ret_val = 0, str_id;

	pr_debug("sst_platform_close called\n");
	stream = substream->runtime->private_data;
	str_id = stream->stream_info.str_id;
	if (str_id)
		ret_val = stream->sstdrv_ops->pcm_control->close(str_id);
	unregister_sst_card(stream->sstdrv_ops);
	kfree(stream->sstdrv_ops);
	kfree(stream);
	return ret_val;
}

Example #2

File: intelmid.c Project: 119-org/hi3518-osdrv

static int snd_intelmad_dev_free(struct snd_device *device)
{
	struct snd_intelmad *intelmaddata;

	WARN_ON(!device);

	intelmaddata = device->device_data;

	pr_debug("snd_intelmad_dev_free called\n");
	unregister_sst_card(intelmaddata->sstdrv_ops);

	/* free allocated memory for internal context */
	destroy_workqueue(intelmaddata->mad_jack_wq);
	device->device_data = NULL;
	kfree(intelmaddata->sstdrv_ops);
	kfree(intelmaddata);

	return 0;
}

Example #3

File: intelmid.c Project: 119-org/hi3518-osdrv

/**
* snd_intelmad_probe- function registred for init
* @pdev :  pointer to the device struture
* This function is called when the device is initialized
*/
int __devinit snd_intelmad_probe(struct platform_device *pdev)
{
	struct snd_card *card;
	int ret_val;
	struct snd_intelmad *intelmaddata;
	const struct platform_device_id *id = platform_get_device_id(pdev);
	struct snd_intelmad_probe_info *info = (void *)id->driver_data;

	pr_debug("probe for %s cpu_id %d\n", pdev->name, info->cpu_id);
	pr_debug("rq_chache %x of size %x\n", info->irq_cache, info->size);
	if (!strcmp(pdev->name, DRIVER_NAME_MRST))
		pr_debug("detected MRST\n");
	else if (!strcmp(pdev->name, DRIVER_NAME_MFLD))
		pr_debug("detected MFLD\n");
	else {
		pr_err("detected unknown device abort!!\n");
		return -EIO;
	}
	if ((info->cpu_id < CPU_CHIP_LINCROFT) ||
				(info->cpu_id > CPU_CHIP_PENWELL)) {
		pr_err("detected unknown cpu_id abort!!\n");
		return -EIO;
	}
	/* allocate memory for saving internal context and working */
	intelmaddata = kzalloc(sizeof(*intelmaddata), GFP_KERNEL);
	if (!intelmaddata) {
		pr_debug("mem alloctn fail\n");
		return -ENOMEM;
	}
	intelmad_drv = intelmaddata;

	/* allocate memory for LPE API set */
	intelmaddata->sstdrv_ops = kzalloc(sizeof(struct intel_sst_card_ops),
					GFP_KERNEL);
	if (!intelmaddata->sstdrv_ops) {
		pr_err("mem allocation for ops fail\n");
		kfree(intelmaddata);
		return -ENOMEM;
	}

	intelmaddata->cpu_id = info->cpu_id;
	/* create a card instance with ALSA framework */
	ret_val = snd_card_create(card_index, card_id, THIS_MODULE, 0, &card);
	if (ret_val) {
		pr_err("snd_card_create fail\n");
		goto free_allocs;
	}

	intelmaddata->pdev = pdev;
	intelmaddata->irq = platform_get_irq(pdev, 0);
	platform_set_drvdata(pdev, intelmaddata);
	intelmaddata->card = card;
	intelmaddata->card_id = card_id;
	intelmaddata->card_index = card_index;
	intelmaddata->master_mute = UNMUTE;
	intelmaddata->playback_cnt =  intelmaddata->capture_cnt = 0;
	strncpy(card->driver, INTEL_MAD, strlen(INTEL_MAD));
	strncpy(card->shortname, INTEL_MAD, strlen(INTEL_MAD));

	intelmaddata->sstdrv_ops->module_name = SST_CARD_NAMES;
	/* registering with LPE driver to get access to SST APIs to use */
	ret_val = snd_intelmad_sst_register(intelmaddata);
	if (ret_val) {
		pr_err("snd_intelmad_sst_register failed\n");
		goto set_null_data;
	}

	intelmaddata->pmic_status = PMIC_INIT;

	ret_val = snd_intelmad_pcm(card, intelmaddata);
	if (ret_val) {
		pr_err("snd_intelmad_pcm failed\n");
		goto free_sst;
	}

	ret_val = snd_intelmad_mixer(intelmaddata);
	if (ret_val) {
		pr_err("snd_intelmad_mixer failed\n");
		goto free_card;
	}

	ret_val = snd_intelmad_jack(intelmaddata);
	if (ret_val) {
		pr_err("snd_intelmad_jack failed\n");
		goto free_card;
	}
	intelmaddata->adc_address = mid_initialize_adc();

	/*create work queue for jack interrupt*/
	INIT_WORK(&intelmaddata->mad_jack_msg.wq,
		sst_process_mad_jack_detection);

	intelmaddata->mad_jack_wq = create_workqueue("sst_mad_jack_wq");
	if (!intelmaddata->mad_jack_wq)
		goto free_card;

	ret_val = snd_intelmad_register_irq(intelmaddata,
					info->irq_cache, info->size);
	if (ret_val) {
		pr_err("snd_intelmad_register_irq fail\n");
		goto free_mad_jack_wq;
	}

	/* internal function call to register device with ALSA */
	ret_val = snd_intelmad_create(intelmaddata, card);
	if (ret_val) {
		pr_err("snd_intelmad_create failed\n");
		goto set_pvt_data;
	}
	card->private_data = &intelmaddata;
	snd_card_set_dev(card, &pdev->dev);
	ret_val = snd_card_register(card);
	if (ret_val) {
		pr_err("snd_card_register failed\n");
		goto set_pvt_data;
	}
	if (pdev->dev.platform_data) {
		int gpio_amp = *(int *)pdev->dev.platform_data;
		if (gpio_request_one(gpio_amp, GPIOF_OUT_INIT_LOW, "amp power"))
			gpio_amp = 0;
		intelmaddata->sstdrv_ops->scard_ops->gpio_amp = gpio_amp;
	}

	pr_debug("snd_intelmad_probe complete\n");
	return ret_val;

set_pvt_data:
	card->private_data = NULL;
free_mad_jack_wq:
	destroy_workqueue(intelmaddata->mad_jack_wq);
free_card:
	snd_card_free(intelmaddata->card);
free_sst:
	unregister_sst_card(intelmaddata->sstdrv_ops);
set_null_data:
	platform_set_drvdata(pdev, NULL);
free_allocs:
	pr_err("probe failed\n");
	snd_card_free(card);
	kfree(intelmaddata->sstdrv_ops);
	kfree(intelmaddata);
	return ret_val;
}