static int labx_dma_ioctl_cdev(struct inode *inode,
struct file *filp,
unsigned int command, unsigned long arg) {
struct labx_dma_pdev *dma_pdev = (struct labx_dma_pdev*)filp->private_data;
return labx_dma_ioctl(&dma_pdev->dma, command, arg);
}
static int labx_local_audio_ioctl_cdev(struct inode *inode, struct file *filp,
unsigned int command, unsigned long arg)
{
struct labx_local_audio_pdev *local_audio_pdev = (struct labx_local_audio_pdev*)filp->private_data;
int returnValue = 0;
switch(command) {
case IOC_LA_SET_CHANNEL_MAPPING:
{
struct LocalAudioChannelMapping mapping;
if(copy_from_user(&mapping, (void __user*)arg, sizeof(mapping)) != 0) {
printk("CFU failed\n");
return(-EFAULT);
}
if (mapping.channel >= local_audio_pdev->numChannels) {
printk("Channel check failed: %d, %d\n", mapping.channel, local_audio_pdev->numChannels);
return(-EINVAL);
}
XIo_Out32(LOCAL_AUDIO_REGISTER_BASE(local_audio_pdev, LOCAL_AUDIO_CHANNEL_REG + mapping.channel),
mapping.streams);
}
break;
case IOC_LA_GET_CHANNEL_MAPPING:
{
struct LocalAudioChannelMapping mapping;
if(copy_from_user(&mapping, (void __user*)arg, sizeof(mapping)) != 0) {
return(-EFAULT);
}
if (mapping.channel >= local_audio_pdev->numChannels) {
return(-EINVAL);
}
mapping.streams = XIo_In32(LOCAL_AUDIO_REGISTER_BASE(local_audio_pdev, LOCAL_AUDIO_CHANNEL_REG + mapping.channel));
if(copy_to_user(&mapping, (void __user*)arg, sizeof(mapping)) != 0) {
return(-EFAULT);
}
}
break;
case IOC_LA_SET_INSERT_MODE:
{
struct LocalAudioInsertConfig config;
uint32_t value = 0;
if(copy_from_user(&config, (void __user*)arg, sizeof(config)) != 0) {
return(-EFAULT);
}
switch(config.mode)
{
default:
return(-EINVAL);
case LA_INSERT_MODE_OFF:
break;
case LA_INSERT_MODE_ZERO:
value = LOCAL_AUDIO_INSERTER_ENABLE | LOCAL_AUDIO_INSERTER_ZERO;
break;
case LA_INSERT_MODE_DC:
value = LOCAL_AUDIO_INSERTER_ENABLE | LOCAL_AUDIO_INSERTER_DC;
break;
case LA_INSERT_MODE_RAMP:
value = LOCAL_AUDIO_INSERTER_ENABLE | LOCAL_AUDIO_INSERTER_RAMP;
break;
case LA_INSERT_MODE_LFSR:
value = LOCAL_AUDIO_INSERTER_ENABLE;
break;
}
value |= (config.stream << LOCAL_AUDIO_INSERTER_STREAM_SHIFT) & LOCAL_AUDIO_INSERTER_STREAM_MASK;
value |= (config.slot << LOCAL_AUDIO_INSERTER_SLOT_SHIFT) & LOCAL_AUDIO_INSERTER_SLOT_MASK;
XIo_Out32(LOCAL_AUDIO_INSERTER_BASE(local_audio_pdev, LOCAL_AUDIO_INSERTER_TDM_CTRL_REG),
value);
}
break;
default:
/* We don't recognize this command; first give an encapsulated DMA controller
* a crack at it (if one exists), and then our derived driver (if one exists).
*/
if(local_audio_pdev->dma != NULL) returnValue = labx_dma_ioctl(local_audio_pdev->dma, command, arg);
if(((local_audio_pdev->dma == NULL) | (returnValue == -EINVAL)) &&
(local_audio_pdev->derivedFops != NULL) &&
(local_audio_pdev->derivedFops->ioctl != NULL)) {
returnValue = local_audio_pdev->derivedFops->ioctl(inode, filp, command, arg);
}
return(returnValue);
}
/* Command handled locally without incident, return success */
return(0);
}
