} /* End channel is open more than once */
/* Port open only once go ahead with shutdown & reset */
- if (ch->count < 0)
- BUG();
+ BUG_ON(ch->count < 0);
/* ---------------------------------------------------------------
Let the rest of the driver know the channel is being closed.
unsigned long flags;
struct tty_struct *tty;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
if (!(ch->asyncflags & ASYNC_INITIALIZED))
return;
struct channel *ch;
unsigned long flags;
int remain;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
/* ----------------------------------------------------------------
pc_write is primarily called directly by the kernel routine
------------------------------------------------------------------- */
dataLen = min(bytesAvailable, dataLen);
- memcpy(ch->txptr + head, buf, dataLen);
+ memcpy_toio(ch->txptr + head, buf, dataLen);
buf += dataLen;
head += dataLen;
amountCopied += dataLen;
struct channel *ch;
unsigned long flags;
unsigned int head, tail;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
remain = 0;
int remain;
unsigned long flags;
struct channel *ch;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
/* ---------------------------------------------------------
verifyChannel returns the channel from the tty struct
unsigned int tail;
unsigned long flags;
struct channel *ch;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
/* ---------------------------------------------------------
verifyChannel returns the channel from the tty struct
if it is valid. This serves as a sanity check.
struct channel *ch;
unsigned long flags;
int line, retval, boardnum;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
unsigned int head;
line = tty->index;
ch->statusflags = 0;
/* Save boards current modem status */
- ch->imodem = bc->mstat;
+ ch->imodem = readb(&bc->mstat);
/* ----------------------------------------------------------------
Set receive head and tail ptrs to each other. This indicates
{ /* Begin post_fep_init */
int i;
- unsigned char *memaddr;
- struct global_data *gd;
+ void __iomem *memaddr;
+ struct global_data __iomem *gd;
struct board_info *bd;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
struct channel *ch;
int shrinkmem = 0, lowwater ;
8 and 64 of these structures.
-------------------------------------------------------------------- */
- bc = (struct board_chan *)(memaddr + CHANSTRUCT);
+ bc = memaddr + CHANSTRUCT;
/* -------------------------------------------------------------------
The below assignment will set gd to point at the BEGINING of
pointer begins at 0xd10.
---------------------------------------------------------------------- */
- gd = (struct global_data *)(memaddr + GLOBAL);
+ gd = memaddr + GLOBAL;
/* --------------------------------------------------------------------
XEPORTS (address 0xc22) points at the number of channels the
for (i = 0; i < bd->numports; i++, ch++, bc++) { /* Begin for each port */
unsigned long flags;
+ u16 tseg, rseg;
ch->brdchan = bc;
ch->mailbox = gd;
shrinkmem = 0;
}
+ tseg = readw(&bc->tseg);
+ rseg = readw(&bc->rseg);
+
switch (bd->type) {
case PCIXEM:
case PCIXRJ:
case PCIXR:
/* Cover all the 2MEG cards */
- ch->txptr = memaddr + (((bc->tseg) << 4) & 0x1fffff);
- ch->rxptr = memaddr + (((bc->rseg) << 4) & 0x1fffff);
- ch->txwin = FEPWIN | ((bc->tseg) >> 11);
- ch->rxwin = FEPWIN | ((bc->rseg) >> 11);
+ ch->txptr = memaddr + ((tseg << 4) & 0x1fffff);
+ ch->rxptr = memaddr + ((rseg << 4) & 0x1fffff);
+ ch->txwin = FEPWIN | (tseg >> 11);
+ ch->rxwin = FEPWIN | (rseg >> 11);
break;
case PCXEM:
case EISAXEM:
/* Cover all the 32K windowed cards */
/* Mask equal to window size - 1 */
- ch->txptr = memaddr + (((bc->tseg) << 4) & 0x7fff);
- ch->rxptr = memaddr + (((bc->rseg) << 4) & 0x7fff);
- ch->txwin = FEPWIN | ((bc->tseg) >> 11);
- ch->rxwin = FEPWIN | ((bc->rseg) >> 11);
+ ch->txptr = memaddr + ((tseg << 4) & 0x7fff);
+ ch->rxptr = memaddr + ((rseg << 4) & 0x7fff);
+ ch->txwin = FEPWIN | (tseg >> 11);
+ ch->rxwin = FEPWIN | (rseg >> 11);
break;
case PCXEVE:
case PCXE:
- ch->txptr = memaddr + (((bc->tseg - bd->memory_seg) << 4) & 0x1fff);
- ch->txwin = FEPWIN | ((bc->tseg - bd->memory_seg) >> 9);
- ch->rxptr = memaddr + (((bc->rseg - bd->memory_seg) << 4) & 0x1fff);
- ch->rxwin = FEPWIN | ((bc->rseg - bd->memory_seg) >>9 );
+ ch->txptr = memaddr + (((tseg - bd->memory_seg) << 4) & 0x1fff);
+ ch->txwin = FEPWIN | ((tseg - bd->memory_seg) >> 9);
+ ch->rxptr = memaddr + (((rseg - bd->memory_seg) << 4) & 0x1fff);
+ ch->rxwin = FEPWIN | ((rseg - bd->memory_seg) >>9 );
break;
case PCXI:
case PC64XE:
- ch->txptr = memaddr + ((bc->tseg - bd->memory_seg) << 4);
- ch->rxptr = memaddr + ((bc->rseg - bd->memory_seg) << 4);
+ ch->txptr = memaddr + ((tseg - bd->memory_seg) << 4);
+ ch->rxptr = memaddr + ((rseg - bd->memory_seg) << 4);
ch->txwin = ch->rxwin = 0;
break;
} /* End switch bd->type */
ch->txbufhead = 0;
- ch->txbufsize = bc->tmax + 1;
+ ch->txbufsize = readw(&bc->tmax) + 1;
ch->rxbufhead = 0;
- ch->rxbufsize = bc->rmax + 1;
+ ch->rxbufsize = readw(&bc->rmax) + 1;
lowwater = ch->txbufsize >= 2000 ? 1024 : (ch->txbufsize / 2);
static void doevent(int crd)
{ /* Begin doevent */
- void *eventbuf;
+ void __iomem *eventbuf;
struct channel *ch, *chan0;
static struct tty_struct *tty;
struct board_info *bd;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
unsigned int tail, head;
int event, channel;
int mstat, lstat;
if (tty) { /* Begin if valid tty */
if (event & BREAK_IND) { /* Begin if BREAK_IND */
/* A break has been indicated */
- tty->flip.count++;
- *tty->flip.flag_buf_ptr++ = TTY_BREAK;
- *tty->flip.char_buf_ptr++ = 0;
+ tty_insert_flip_char(tty, 0, TTY_BREAK);
tty_schedule_flip(tty);
} else if (event & LOWTX_IND) { /* Begin LOWTX_IND */
if (ch->statusflags & LOWWAIT)
static void fepcmd(struct channel *ch, int cmd, int word_or_byte,
int byte2, int ncmds, int bytecmd)
{ /* Begin fepcmd */
- unchar *memaddr;
+ unchar __iomem *memaddr;
unsigned int head, cmdTail, cmdStart, cmdMax;
long count;
int n;
unsigned int cmdHead;
struct termios *ts;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
unsigned mval, hflow, cflag, iflag;
bc = ch->brdchan;
ts = tty->termios;
if ((ts->c_cflag & CBAUD) == 0) { /* Begin CBAUD detected */
cmdHead = readw(&bc->rin);
- bc->rout = cmdHead;
+ writew(cmdHead, &bc->rout);
cmdHead = readw(&bc->tin);
/* Changing baud in mid-stream transmission can be wonderful */
/* ---------------------------------------------------------------
unchar *rptr;
struct termios *ts = NULL;
struct tty_struct *tty;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
int dataToRead, wrapgap, bytesAvailable;
unsigned int tail, head;
unsigned int wrapmask;
- int rc;
/* ---------------------------------------------------------------
This routine is called by doint when a receive data event
--------------------------------------------------------------------- */
if (!tty || !ts || !(ts->c_cflag & CREAD)) {
- bc->rout = head;
+ writew(head, &bc->rout);
return;
}
- if (tty->flip.count == TTY_FLIPBUF_SIZE)
+ if (tty_buffer_request_room(tty, bytesAvailable + 1) == 0)
return;
if (readb(&bc->orun)) {
writeb(0, &bc->orun);
printk(KERN_WARNING "epca; overrun! DigiBoard device %s\n",tty->name);
+ tty_insert_flip_char(tty, 0, TTY_OVERRUN);
}
rxwinon(ch);
- rptr = tty->flip.char_buf_ptr;
- rc = tty->flip.count;
while (bytesAvailable > 0) { /* Begin while there is data on the card */
wrapgap = (head >= tail) ? head - tail : ch->rxbufsize - tail;
/* ---------------------------------------------------------------
/* --------------------------------------------------------------
Make sure we don't overflow the buffer
----------------------------------------------------------------- */
- if ((rc + dataToRead) > TTY_FLIPBUF_SIZE)
- dataToRead = TTY_FLIPBUF_SIZE - rc;
+ dataToRead = tty_prepare_flip_string(tty, &rptr, dataToRead);
if (dataToRead == 0)
break;
/* ---------------------------------------------------------------
for translation if necessary.
------------------------------------------------------------------ */
memcpy_fromio(rptr, ch->rxptr + tail, dataToRead);
- rc += dataToRead;
- rptr += dataToRead;
tail = (tail + dataToRead) & wrapmask;
bytesAvailable -= dataToRead;
} /* End while there is data on the card */
- tty->flip.count = rc;
- tty->flip.char_buf_ptr = rptr;
globalwinon(ch);
writew(tail, &bc->rout);
/* Must be called with global data */
static int pc_tiocmget(struct tty_struct *tty, struct file *file)
{
struct channel *ch = (struct channel *) tty->driver_data;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
unsigned int mstat, mflag = 0;
unsigned long flags;
unsigned long flags;
unsigned int mflag, mstat;
unsigned char startc, stopc;
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
struct channel *ch = (struct channel *) tty->driver_data;
void __user *argp = (void __user *)arg;
spin_lock_irqsave(&epca_lock, flags);
/* Just in case output was resumed because of a change in Digi-flow */
if (ch->statusflags & TXSTOPPED) { /* Begin transmit resume requested */
- struct board_chan *bc;
+ struct board_chan __iomem *bc;
globalwinon(ch);
bc = ch->brdchan;
if (ch->statusflags & LOWWAIT)
static void setup_empty_event(struct tty_struct *tty, struct channel *ch)
{ /* Begin setup_empty_event */
- struct board_chan *bc = ch->brdchan;
+ struct board_chan __iomem *bc = ch->brdchan;
globalwinon(ch);
ch->statusflags |= EMPTYWAIT;
git.openpandora.org / pandora-kernel.git / blobdiff