static int audio_ioctl(struct inode *inode, struct file *file,
uint cmd, ulong arg)
{
audio_state_t *state = (audio_state_t *)file->private_data;
audio_stream_t *os = state->output_stream;
audio_stream_t *is = state->input_stream;
long val;
/* dispatch based on command */
switch (cmd) {
case OSS_GETVERSION:
return put_user(SOUND_VERSION, (int *)arg);
case SNDCTL_DSP_GETBLKSIZE:
if (file->f_mode & FMODE_WRITE)
return put_user(os->fragsize, (int *)arg);
else
return put_user(is->fragsize, (int *)arg);
case SNDCTL_DSP_GETCAPS:
val = DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP;
if (is && os)
val |= DSP_CAP_DUPLEX;
return put_user(val, (int *)arg);
case SNDCTL_DSP_SETFRAGMENT:
if (get_user(val, (long *) arg))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
int ret = audio_set_fragments(is, val);
if (ret < 0)
return ret;
ret = put_user(ret, (int *)arg);
if (ret)
return ret;
}
if (file->f_mode & FMODE_WRITE) {
int ret = audio_set_fragments(os, val);
if (ret < 0)
return ret;
ret = put_user(ret, (int *)arg);
if (ret)
return ret;
}
return 0;
case SNDCTL_DSP_SYNC:
return audio_sync(file);
case SNDCTL_DSP_SETDUPLEX:
return 0;
case SNDCTL_DSP_POST:
return 0;
case SNDCTL_DSP_GETTRIGGER:
val = 0;
if (file->f_mode & FMODE_READ && is->active && !is->stopped)
val |= PCM_ENABLE_INPUT;
if (file->f_mode & FMODE_WRITE && os->active && !os->stopped)
val |= PCM_ENABLE_OUTPUT;
return put_user(val, (int *)arg);
case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, (int *)arg))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
if (val & PCM_ENABLE_INPUT) {
if (!is->active) {
if (!is->buffers && audio_setup_buf(is))
return -ENOMEM;
audio_prime_dma(is);
}
audio_check_tx_spin(state);
if (is->stopped) {
is->stopped = 0;
sa1100_dma_resume(is->dma_ch);
}
} else {
sa1100_dma_stop(is->dma_ch);
is->stopped = 1;
}
}
if (file->f_mode & FMODE_WRITE) {
if (val & PCM_ENABLE_OUTPUT) {
if (!os->active) {
if (!os->buffers && audio_setup_buf(os))
return -ENOMEM;
if (os->mapped)
audio_prime_dma(os);
}
if (os->stopped) {
os->stopped = 0;
sa1100_dma_resume(os->dma_ch);
}
} else {
sa1100_dma_stop(os->dma_ch);
os->stopped = 1;
}
}
return 0;
case SNDCTL_DSP_GETOPTR:
case SNDCTL_DSP_GETIPTR:
{
count_info inf = { 0, };
audio_stream_t *s = (cmd == SNDCTL_DSP_GETOPTR) ? os : is;
audio_buf_t *b;
dma_addr_t ptr;
int bytecount, offset, flags;
if ((s == is && !(file->f_mode & FMODE_READ)) ||
(s == os && !(file->f_mode & FMODE_WRITE)))
return -EINVAL;
if (s->active) {
save_flags_cli(flags);
if (sa1100_dma_get_current(s->dma_ch, (void *)&b, &ptr) == 0) {
offset = ptr - b->dma_addr;
inf.ptr = (b - s->buffers) * s->fragsize + offset;
} else offset = 0;
bytecount = s->bytecount + offset;
s->bytecount = -offset;
inf.blocks = s->fragcount;
s->fragcount = 0;
restore_flags(flags);
if (bytecount < 0)
bytecount = 0;
inf.bytes = bytecount;
}
return copy_to_user((void *)arg, &inf, sizeof(inf));
}
case SNDCTL_DSP_GETOSPACE:
{
audio_buf_info inf = { 0, };
int i;
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
if (!os->buffers && audio_setup_buf(os))
return -ENOMEM;
for (i = 0; i < os->nbfrags; i++) {
if (atomic_read(&os->buffers[i].sem.count) > 0) {
if (os->buffers[i].size == 0)
inf.fragments++;
inf.bytes += os->fragsize - os->buffers[i].size;
}
}
inf.fragstotal = os->nbfrags;
inf.fragsize = os->fragsize;
return copy_to_user((void *)arg, &inf, sizeof(inf));
}
case SNDCTL_DSP_GETISPACE:
{
audio_buf_info inf = { 0, };
int i;
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
if (!is->buffers && audio_setup_buf(is))
return -ENOMEM;
for (i = 0; i < is->nbfrags; i++) {
if (atomic_read(&is->buffers[i].sem.count) > 0) {
if (is->buffers[i].size == is->fragsize)
inf.fragments++;
inf.bytes += is->buffers[i].size;
}
}
inf.fragstotal = is->nbfrags;
inf.fragsize = is->fragsize;
return copy_to_user((void *)arg, &inf, sizeof(inf));
}
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
return 0;
case SNDCTL_DSP_GETODELAY: {
int count = 0;
int i;
int flags;
audio_buf_t *b;
dma_addr_t ptr;
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
if (!os->buffers && audio_setup_buf(os))
return -ENOMEM;
save_flags_cli(flags);
for (i = 0; i < os->nbfrags; i++) {
/* if contains data */
if (atomic_read(&os->buffers[i].sem.count) <= 0) {
count += os->fragsize;
}
}
if (sa1100_dma_get_current(os->dma_ch, (void *)&b, &ptr) == 0)
count -= ptr - b->dma_addr;
restore_flags(flags);
return put_user(count, (int *)arg);
}
case SNDCTL_DSP_RESET:
if (file->f_mode & FMODE_READ) {
if (state->tx_spinning) {
sa1100_dma_set_spin(os->dma_ch, 0, 0);
state->tx_spinning = 0;
}
audio_reset_buf(is);
}
if (file->f_mode & FMODE_WRITE) {
audio_reset_buf(os);
}
return 0;
default:
/*
* Let the client of this module handle the
* non generic ioctls
*/
return state->client_ioctl(inode, file, cmd, arg);
}
return 0;
}
static void sa1100_irda_fir_error(struct sa1100_irda *si, struct net_device *dev)
{
struct sk_buff *skb = si->rxskb;
dma_addr_t dma_addr;
unsigned int len, stat, data;
if (!skb) {
printk(KERN_ERR "sa1100_ir: SKB is NULL!\n");
return;
}
/*
* Get the current data position.
*/
sa1100_dma_get_current(si->rxdma, NULL, &dma_addr);
len = dma_addr - si->rxbuf_dma;
pci_unmap_single(NULL, si->rxbuf_dma, len, PCI_DMA_FROMDEVICE);
do {
/*
* Read Status, and then Data.
*/
stat = Ser2HSSR1;
rmb();
data = Ser2HSDR;
if (stat & (HSSR1_CRE | HSSR1_ROR)) {
si->stats.rx_errors++;
if (stat & HSSR1_CRE)
si->stats.rx_crc_errors++;
if (stat & HSSR1_ROR)
si->stats.rx_frame_errors++;
} else
skb->data[len++] = data;
/*
* If we hit the end of frame, there's
* no point in continuing.
*/
if (stat & HSSR1_EOF)
break;
} while (Ser2HSSR0 & HSSR0_EIF);
if (stat & HSSR1_EOF) {
si->rxskb = NULL;
skb_put(skb, len);
skb->dev = dev;
skb->mac.raw = skb->data;
skb->protocol = htons(ETH_P_IRDA);
si->stats.rx_packets++;
si->stats.rx_bytes += len;
/*
* Before we pass the buffer up, allocate a new one.
*/
sa1100_irda_rx_alloc(si);
netif_rx(skb);
} else {
/*
* Remap the buffer.
*/
si->rxbuf_dma = pci_map_single(NULL, si->rxskb->data,
HPSIR_MAX_RXLEN,
PCI_DMA_FROMDEVICE);
}
}