/* TTY functions prototype */
static int cpc_tty_open(struct tty_struct *tty, struct file *flip);
static void cpc_tty_close(struct tty_struct *tty, struct file *flip);
-static int cpc_tty_write(struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count);
+static int cpc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count);
static int cpc_tty_write_room(struct tty_struct *tty);
static int cpc_tty_chars_in_buffer(struct tty_struct *tty);
static void cpc_tty_flush_buffer(struct tty_struct *tty);
* o verify the DCD signal
* o send characters to board and start the transmission
*/
-static int cpc_tty_write(struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count)
+static int cpc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
st_cpc_tty_area *cpc_tty;
pc300ch_t *pc300chan;
return -EINVAL; /* frame too big */
}
- CPC_TTY_DBG("%s: cpc_tty_write %s data len=%i\n",cpc_tty->name,
- (from_user)?"from user" : "from kernel",count);
+ CPC_TTY_DBG("%s: cpc_tty_write data len=%i\n",cpc_tty->name,count);
pc300chan = (pc300ch_t *)((pc300dev_t*)cpc_tty->pc300dev)->chan;
stats = hdlc_stats(((pc300dev_t*)cpc_tty->pc300dev)->dev);
return -EINVAL;
}
- if (from_user) {
- unsigned char *buf_tmp;
-
- buf_tmp = cpc_tty->buf_tx;
- if (copy_from_user(buf_tmp, buf, count)) {
- /* failed to copy from user */
- CPC_TTY_DBG("%s: error in copy from user\n",cpc_tty->name);
- return -EINVAL;
- }
-
- if (cpc_tty_send_to_card(cpc_tty->pc300dev, (void*) buf_tmp,count)) {
- /* failed to send */
- CPC_TTY_DBG("%s: transmission error\n",cpc_tty->name);
- return 0;
- }
- } else {
- if (cpc_tty_send_to_card(cpc_tty->pc300dev, (void*)buf, count)) {
- /* failed to send */
- CPC_TTY_DBG("%s: trasmition error\n", cpc_tty->name);
- return 0;
- }
+ if (cpc_tty_send_to_card(cpc_tty->pc300dev, (void*)buf, count)) {
+ /* failed to send */
+ CPC_TTY_DBG("%s: trasmition error\n", cpc_tty->name);
+ return 0;
}
return count;
}
*/
static void cpc_tty_rx_disc_frame(pc300ch_t *pc300chan)
{
- volatile pcsca_bd_t * ptdescr;
+ volatile pcsca_bd_t __iomem * ptdescr;
volatile unsigned char status;
pc300_t *card = (pc300_t *)pc300chan->card;
int ch = pc300chan->channel;
/* dma buf read */
- ptdescr = (pcsca_bd_t *)(card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
RX_BD_ADDR(ch, pc300chan->rx_first_bd));
while (pc300chan->rx_first_bd != pc300chan->rx_last_bd) {
status = cpc_readb(&ptdescr->status);
if (status & DST_EOM) {
break; /* end of message */
}
- ptdescr = (pcsca_bd_t *)(card->hw.rambase + cpc_readl(&ptdescr->next));
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase + cpc_readl(&ptdescr->next));
}
}
pc300ch_t *pc300chan = (pc300ch_t *)pc300dev->chan;
pc300_t *card = (pc300_t *)pc300chan->card;
int ch = pc300chan->channel;
- volatile pcsca_bd_t * ptdescr;
+ volatile pcsca_bd_t __iomem * ptdescr;
struct net_device_stats *stats = hdlc_stats(pc300dev->dev);
int rx_len, rx_aux;
volatile unsigned char status;
while (1) {
rx_len = 0;
- ptdescr = (pcsca_bd_t *)(card->hw.rambase + RX_BD_ADDR(ch, first_bd));
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase + RX_BD_ADDR(ch, first_bd));
while ((status = cpc_readb(&ptdescr->status)) & DST_OSB) {
rx_len += cpc_readw(&ptdescr->len);
first_bd = (first_bd + 1) & (N_DMA_RX_BUF - 1);
if (status & DST_EOM) {
break;
}
- ptdescr=(pcsca_bd_t*)(card->hw.rambase+cpc_readl(&ptdescr->next));
+ ptdescr=(pcsca_bd_t __iomem *)(card->hw.rambase+cpc_readl(&ptdescr->next));
}
if (!rx_len) {
}
/* dma buf read */
- ptdescr = (pcsca_bd_t *)(card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
RX_BD_ADDR(ch, pc300chan->rx_first_bd));
rx_len = 0; /* counter frame size */
/* read the segment of the frame */
if (rx_aux != 0) {
memcpy_fromio((new->data + rx_len),
- (void *)(card->hw.rambase +
+ (void __iomem *)(card->hw.rambase +
cpc_readl(&ptdescr->ptbuf)), rx_aux);
rx_len += rx_aux;
}
(N_DMA_RX_BUF -1);
if (status & DST_EOM)break;
- ptdescr = (pcsca_bd_t *) (card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *) (card->hw.rambase +
cpc_readl(&ptdescr->next));
}
/* update pointer */
int ch = chan->channel;
struct net_device_stats *stats = hdlc_stats(dev->dev);
unsigned long flags;
- volatile pcsca_bd_t * ptdescr;
+ volatile pcsca_bd_t __iomem *ptdescr;
int i, nchar;
int tosend = len;
int nbuf = ((len - 1)/BD_DEF_LEN) + 1;
CPC_TTY_DBG("%s: call dma_buf_write\n",
(st_cpc_tty_area *)dev->cpc_tty->name);
for (i = 0 ; i < nbuf ; i++) {
- ptdescr = (pcsca_bd_t *)(card->hw.rambase +
+ ptdescr = (pcsca_bd_t __iomem *)(card->hw.rambase +
TX_BD_ADDR(ch, card->chan[ch].tx_next_bd));
nchar = (BD_DEF_LEN > tosend) ? tosend : BD_DEF_LEN;
if (cpc_readb(&ptdescr->status) & DST_OSB) {
- memcpy_toio((void *)(card->hw.rambase +
+ memcpy_toio((void __iomem *)(card->hw.rambase +
cpc_readl(&ptdescr->ptbuf)),
&pdata[len - tosend],
nchar);