C++ (Cpp) PcmDeviceNew Examples

Example #1

//+++++++++++++++++++++++++++++++++++++++++++++++++++++
//
//  Function Name: DriverProbe
//
//  Description: 'probe' call back function
//
//------------------------------------------------------------
static int __devinit DriverProbe(struct platform_device *pdev)
{
	struct snd_card *card;
	int err;
	
	DEBUG("\n %lx:DriverProbe \n",jiffies);
		
	err = -ENODEV;
	if (!enable)
      return err;
    
    err = -ENOMEM;  
	err  = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, 
		THIS_MODULE, sizeof(brcm_alsa_chip_t), &card);
		
	if (!card)
      goto err;
            
	g_brcm_alsa_chip = (brcm_alsa_chip_t*)card->private_data;
	g_brcm_alsa_chip->card = card;
	
	card->dev = &pdev->dev;
	strncpy(card->driver, pdev->dev.driver->name, sizeof(card->driver));
	
	//PCM interface	
	err = PcmDeviceNew(card);
	if (err)
    	goto err;

	//CTRL interface	
	err = ControlDeviceNew(card);
	if (err)
    	goto err;

	//TODO: other interface
	
	
	strcpy(card->driver, "Broadcom");
	strcpy(card->shortname, "Broadcom ALSA");
	sprintf(card->longname, "Broadcom ALSA PCM %i", 0);
	
	
	err = snd_card_register(card);
	if (err==0)
	{
	  int ret;
      platform_set_drvdata(pdev, card);
      ret = BrcmCreateControlSysFs(card);
	  if(ret!=0)
	  	DEBUG("ALSA DriverProbe Error to create sysfs for FMDirectPlay ret = %d\n", ret);
      return 0;
	}

err:
	DEBUG("\n probe failed =%d\n",err);
	if (card)
		snd_card_free(card);
	
	g_brcm_alsa_chip=NULL;
	return err;
}

Example #2

File: caph_module.c Project: TheNikiz/android_kernel_samsung_hawaii

static int DriverProbe(struct platform_device *pdev)
{
	struct snd_card *card;
	int err;

	aTrace(LOG_ALSA_INTERFACE, "ALSA-CAPH Driver Probe:\n");

	aTrace(LOG_ALSA_INTERFACE, "\n %lx:DriverProbe\n", jiffies);

	if (pdev->dev.platform_data != NULL) {
		/* Copy over platform specific data */
		memcpy(&sgCaphPlatInfo, pdev->dev.platform_data,
				sizeof(sgCaphPlatInfo));

		/* Set the platform configuration data */
		AUDCTRL_PlatCfgSet(&sgCaphPlatInfo.aud_ctrl_plat_cfg);
	}

	err = -ENODEV;
	err = -ENOMEM;
	err = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
			      THIS_MODULE, sizeof(brcm_alsa_chip_t), &card);

	if (!card) {
		aError("card is not created!!!!!!!!");
		goto err;
		}

	sgpCaph_chip = (brcm_alsa_chip_t *) card->private_data;
	sgpCaph_chip->card = card;

	card->dev = &pdev->dev;
	strncpy(card->driver, pdev->dev.driver->name, sizeof(card->driver) - 1);
	/* add Null terminating character */
	card->driver[sizeof(card->driver) - 1] = '\0';
	/* PCM interface */
	err = PcmDeviceNew(card);
	if (err) {
		aError("failed PcmDeviceNew");
		goto err;
		}
	/* CTRL interface */
	err = ControlDeviceNew(card);
	if (err) {
		aError("failed ControlDeviceNew");
		goto err;
		}
	/* HWDEP interface */
	/*err = HwdepDeviceNew(card);*/

	voipchrdevpvtdata.card = card;

	err = voipdevicecreate(&voipchrdevpvtdata);
	if (err) {
		aError("voipDeviceCreate faileddddddddddddddd");
		goto err;
		}
	/* HWDEP PTT interface */
	err = HwdepPttDeviceNew(card);
	if (err) {
		aError("cannot create PTT HWDEP device\n");
		goto err;
	}

	strncpy(card->driver, "Broadcom", 9);
	strncpy(card->shortname, "Broadcom ALSA", 14);
	snprintf(card->longname, 20, "Broadcom ALSA PCM %i", 0);

	err = snd_card_register(card);
	if (err == 0) {
		int ret;
		platform_set_drvdata(pdev, card);

		ret = BrcmCreateAuddrv_testSysFs(card);
		if (ret != 0)
			aError("ALSA DriverProbe Error ret= %d\n", ret);
#ifdef CONFIG_BCM_AUDIO_SELFTEST
		ret = BrcmCreateAuddrv_selftestSysFs(card);
		if (ret != 0)
			aError("DriverProbe sysfs err ret = %d\n", ret);
#endif

		return 0;
	}

err:
	aError("\n probe failed =%d\n", err);
	if (card)
		snd_card_free(card);

	sgpCaph_chip = NULL;
	return err;
}