}
static ssize_t mtk_btcvsd_snd_read(struct mtk_btcvsd_snd *bt,
- char __user *buf,
+ struct iov_iter *buf,
size_t count)
{
ssize_t read_size = 0, read_count = 0, cur_read_idx, cont;
- unsigned int cur_buf_ofs = 0;
unsigned long avail;
unsigned long flags;
unsigned int packet_size = bt->rx->packet_size;
if (read_size > cont)
read_size = cont;
- if (copy_to_user(buf + cur_buf_ofs,
- bt->rx_packet_buf + cur_read_idx,
- read_size)) {
- dev_warn(bt->dev, "%s(), copy_to_user fail\n",
+ if (copy_to_iter(bt->rx_packet_buf + cur_read_idx,
+ read_size, buf) != read_size) {
+ dev_warn(bt->dev, "%s(), copy_to_iter fail\n",
__func__);
return -EFAULT;
}
spin_unlock_irqrestore(&bt->rx_lock, flags);
read_count += read_size;
- cur_buf_ofs += read_size;
count -= read_size;
}
}
static ssize_t mtk_btcvsd_snd_write(struct mtk_btcvsd_snd *bt,
- char __user *buf,
+ struct iov_iter *buf,
size_t count)
{
int written_size = count, avail, cur_write_idx, write_size, cont;
- unsigned int cur_buf_ofs = 0;
unsigned long flags;
unsigned int packet_size = bt->tx->packet_size;
if (write_size > cont)
write_size = cont;
- if (copy_from_user(bt->tx_packet_buf +
- cur_write_idx,
- buf + cur_buf_ofs,
- write_size)) {
- dev_warn(bt->dev, "%s(), copy_from_user fail\n",
+ if (copy_from_iter(bt->tx_packet_buf + cur_write_idx,
+ write_size, buf) != write_size) {
+ dev_warn(bt->dev, "%s(), copy_from_iter fail\n",
__func__);
return -EFAULT;
}
spin_lock_irqsave(&bt->tx_lock, flags);
bt->tx->packet_w += write_size / packet_size;
spin_unlock_irqrestore(&bt->tx_lock, flags);
- cur_buf_ofs += write_size;
count -= write_size;
}
static int mtk_pcm_btcvsd_copy(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
int channel, unsigned long pos,
- void __user *buf, unsigned long count)
+ struct iov_iter *buf, unsigned long count)
{
struct mtk_btcvsd_snd *bt = snd_soc_component_get_drvdata(component);
.prepare = mtk_pcm_btcvsd_prepare,
.trigger = mtk_pcm_btcvsd_trigger,
.pointer = mtk_pcm_btcvsd_pointer,
- .copy_user = mtk_pcm_btcvsd_copy,
+ .copy = mtk_pcm_btcvsd_copy,
};
static int mtk_btcvsd_snd_probe(struct platform_device *pdev)