* 3/9/99 sameer Added support for ISI4616 cards.
*
* 16/9/99 sameer We do not force RTS low anymore.
- * This is to prevent the firmware
+ * This is to prevent the firmware
* from getting confused.
*
* 26/10/99 sameer Cosmetic changes:The driver now
*
* 10/5/00 sameer Fixed isicom_shutdown_board()
* to not lower DTR on all the ports
- * when the last port on the card is
+ * when the last port on the card is
* closed.
*
* 10/5/00 sameer Signal mask setup command added
- * to isicom_setup_port and
+ * to isicom_setup_port and
* isicom_shutdown_port.
*
* 24/5/00 sameer The driver is now SMP aware.
- *
- *
+ *
+ *
* 27/11/00 Vinayak P Risbud Fixed the Driver Crash Problem
- *
- *
+ *
+ *
* 03/01/01 anil .s Added support for resetting the
* internal modems on ISI cards.
*
* 08/02/01 anil .s Upgraded the driver for kernel
* 2.4.x
*
- * 11/04/01 Kevin Fixed firmware load problem with
+ * 11/04/01 Kevin Fixed firmware load problem with
* ISIHP-4X card
- *
+ *
* 30/04/01 anil .s Fixed the remote login through
* ISI port problem. Now the link
* does not go down before password
* among ISI-PCI cards.
*
* 03/05/01 anil .s Added support to display the version
- * info during insmod as well as module
+ * info during insmod as well as module
* listing by lsmod.
- *
+ *
* 10/05/01 anil .s Done the modifications to the source
* file and Install script so that the
* same installation can be used for
* 06/06/01 anil .s Now we drop both dtr and rts during
* shutdown_port as well as raise them
* during isicom_config_port.
- *
+ *
* 09/06/01 acme@conectiva.com.br use capable, not suser, do
* restore_flags on failure in
* isicom_send_break, verify put_user
* result
*
- * 11/02/03 ranjeeth Added support for 230 Kbps and 460 Kbps
- * Baud index extended to 21
- *
- * 20/03/03 ranjeeth Made to work for Linux Advanced server.
- * Taken care of license warning.
- *
- * 10/12/03 Ravindra Made to work for Fedora Core 1 of
+ * 11/02/03 ranjeeth Added support for 230 Kbps and 460 Kbps
+ * Baud index extended to 21
+ *
+ * 20/03/03 ranjeeth Made to work for Linux Advanced server.
+ * Taken care of license warning.
+ *
+ * 10/12/03 Ravindra Made to work for Fedora Core 1 of
* Red Hat Distribution
*
* 06/01/05 Alan Cox Merged the ISI and base kernel strands
*
* ***********************************************************
*
- * To use this driver you also need the support package. You
+ * To use this driver you also need the support package. You
* can find this in RPM format on
* ftp://ftp.linux.org.uk/pub/linux/alan
- *
+ *
* You can find the original tools for this direct from Multitech
* ftp://ftp.multitech.com/ISI-Cards/
*
static int ISILoad_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg);
static void isicom_tx(unsigned long _data);
-static void isicom_start(struct tty_struct * tty);
+static void isicom_start(struct tty_struct *tty);
-static unsigned char * tmp_buf;
+static unsigned char *tmp_buf;
static DECLARE_MUTEX(tmp_buf_sem);
/* baud index mappings from linux defns to isi */
static signed char linuxb_to_isib[] = {
- -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17,
- 18, 19
+ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19
};
struct isi_board {
* the kernel lock for the card and have the card in a position that
* it wants to talk.
*/
-
+
static int lock_card(struct isi_board *card)
{
char retries;
for (retries = 0; retries < 100; retries++) {
spin_lock_irqsave(&card->card_lock, card->flags);
if (inw(base + 0xe) & 0x1) {
- return 1;
+ return 1;
} else {
spin_unlock_irqrestore(&card->card_lock, card->flags);
udelay(1000); /* 1ms */
spin_lock_irqsave(&card->card_lock, card->flags);
if (inw(base + 0xe) & 0x1)
- return 1;
+ return 1;
else
spin_unlock_irqrestore(&card->card_lock, card->flags);
}
/*
* ISI Card specific ops ...
*/
-
-static void raise_dtr(struct isi_port * port)
+
+static void raise_dtr(struct isi_port *port)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
unsigned short base = card->base;
unsigned char channel = port->channel;
if (!lock_card(card))
return;
- outw(0x8000 | (channel << card->shift_count) | 0x02 , base);
+ outw(0x8000 | (channel << card->shift_count) | 0x02, base);
outw(0x0504, base);
InterruptTheCard(base);
port->status |= ISI_DTR;
unlock_card(card);
}
-static inline void drop_dtr(struct isi_port * port)
-{
- struct isi_board * card = port->card;
+static inline void drop_dtr(struct isi_port *port)
+{
+ struct isi_board *card = port->card;
unsigned short base = card->base;
unsigned char channel = port->channel;
if (!lock_card(card))
return;
- outw(0x8000 | (channel << card->shift_count) | 0x02 , base);
+ outw(0x8000 | (channel << card->shift_count) | 0x02, base);
outw(0x0404, base);
- InterruptTheCard(base);
+ InterruptTheCard(base);
port->status &= ~ISI_DTR;
unlock_card(card);
}
-static inline void raise_rts(struct isi_port * port)
+static inline void raise_rts(struct isi_port *port)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
unsigned short base = card->base;
unsigned char channel = port->channel;
if (!lock_card(card))
return;
- outw(0x8000 | (channel << card->shift_count) | 0x02 , base);
+ outw(0x8000 | (channel << card->shift_count) | 0x02, base);
outw(0x0a04, base);
- InterruptTheCard(base);
+ InterruptTheCard(base);
port->status |= ISI_RTS;
unlock_card(card);
}
-static inline void drop_rts(struct isi_port * port)
+static inline void drop_rts(struct isi_port *port)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
unsigned short base = card->base;
unsigned char channel = port->channel;
if (!lock_card(card))
return;
- outw(0x8000 | (channel << card->shift_count) | 0x02 , base);
+ outw(0x8000 | (channel << card->shift_count) | 0x02, base);
outw(0x0804, base);
- InterruptTheCard(base);
+ InterruptTheCard(base);
port->status &= ~ISI_RTS;
unlock_card(card);
}
-static inline void raise_dtr_rts(struct isi_port * port)
+static inline void raise_dtr_rts(struct isi_port *port)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
unsigned short base = card->base;
unsigned char channel = port->channel;
if (!lock_card(card))
return;
- outw(0x8000 | (channel << card->shift_count) | 0x02 , base);
+ outw(0x8000 | (channel << card->shift_count) | 0x02, base);
outw(0x0f04, base);
InterruptTheCard(base);
port->status |= (ISI_DTR | ISI_RTS);
unlock_card(card);
}
-static void drop_dtr_rts(struct isi_port * port)
+static void drop_dtr_rts(struct isi_port *port)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
unsigned short base = card->base;
unsigned char channel = port->channel;
if (!lock_card(card))
return;
- outw(0x8000 | (channel << card->shift_count) | 0x02 , base);
+ outw(0x8000 | (channel << card->shift_count) | 0x02, base);
outw(0x0c04, base);
- InterruptTheCard(base);
+ InterruptTheCard(base);
port->status &= ~(ISI_RTS | ISI_DTR);
unlock_card(card);
}
-static inline void kill_queue(struct isi_port * port, short queue)
+static inline void kill_queue(struct isi_port *port, short queue)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
unsigned short base = card->base;
unsigned char channel = port->channel;
if (!lock_card(card))
return;
- outw(0x8000 | (channel << card->shift_count) | 0x02 , base);
+ outw(0x8000 | (channel << card->shift_count) | 0x02, base);
outw((queue << 8) | 0x06, base);
- InterruptTheCard(base);
+ InterruptTheCard(base);
unlock_card(card);
}
-/*
+/*
* Firmware loader driver specific routines. This needs to mostly die
* and be replaced with request_firmware.
*/
ISILOAD_MISC_MINOR, "isictl", &ISILoad_fops
};
-
+
static inline int WaitTillCardIsFree(unsigned short base)
{
unsigned long count=0;
while( (!(inw(base+0xe) & 0x1)) && (count++ < 6000000));
- if (inw(base+0xe)&0x1)
+ if (inw(base+0xe)&0x1)
return 0;
else
return 1;
}
static int ISILoad_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+ unsigned int cmd, unsigned long arg)
{
unsigned int card, i, j, signature, status, portcount = 0;
unsigned long t;
bin_frame frame;
void __user *argp = (void __user *)arg;
/* exec_record exec_rec; */
-
- if(get_user(card, (int __user *)argp))
+
+ if (get_user(card, (int __user *)argp))
return -EFAULT;
-
- if(card < 0 || card >= BOARD_COUNT)
+
+ if (card < 0 || card >= BOARD_COUNT)
return -ENXIO;
-
+
base=isi_card[card].base;
-
- if(base==0)
+
+ if (base==0)
return -ENXIO; /* disabled or not used */
-
+
switch(cmd) {
- case MIOCTL_RESET_CARD:
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- printk(KERN_DEBUG "ISILoad:Resetting Card%d at 0x%x ",card+1,base);
-
- inw(base+0x8);
-
- for(t=jiffies+HZ/100;time_before(jiffies, t););
-
- outw(0,base+0x8); /* Reset */
-
- for(j=1;j<=3;j++) {
- for(t=jiffies+HZ;time_before(jiffies, t););
- printk(".");
- }
- signature=(inw(base+0x4)) & 0xff;
- if (isi_card[card].isa) {
-
- if (!(inw(base+0xe) & 0x1) || (inw(base+0x2))) {
-#ifdef ISICOM_DEBUG
- printk("\nbase+0x2=0x%x , base+0xe=0x%x",inw(base+0x2),inw(base+0xe));
-#endif
- printk("\nISILoad:ISA Card%d reset failure (Possible bad I/O Port Address 0x%x).\n",card+1,base);
- return -EIO;
- }
- }
- else {
- portcount = inw(base+0x2);
- if (!(inw(base+0xe) & 0x1) || ((portcount!=0) && (portcount!=4) && (portcount!=8))) {
+ case MIOCTL_RESET_CARD:
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ printk(KERN_DEBUG "ISILoad:Resetting Card%d at 0x%x ",card+1,base);
+
+ inw(base+0x8);
+
+ for (t=jiffies+HZ/100;time_before(jiffies, t););
+
+ outw(0,base+0x8); /* Reset */
+
+ for (j=1;j<=3;j++) {
+ for (t=jiffies+HZ;time_before(jiffies, t););
+ printk(".");
+ }
+ signature=(inw(base+0x4)) & 0xff;
+ if (isi_card[card].isa) {
+
+ if (!(inw(base+0xe) & 0x1) || (inw(base+0x2))) {
#ifdef ISICOM_DEBUG
- printk("\nbase+0x2=0x%x , base+0xe=0x%x",inw(base+0x2),inw(base+0xe));
+ printk("\nbase+0x2=0x%x , base+0xe=0x%x",inw(base+0x2),inw(base+0xe));
#endif
- printk("\nISILoad:PCI Card%d reset failure (Possible bad I/O Port Address 0x%x).\n",card+1,base);
- return -EIO;
- }
- }
- switch(signature) {
- case 0xa5:
- case 0xbb:
- case 0xdd:
- if (isi_card[card].isa)
- isi_card[card].port_count = 8;
- else {
- if (portcount == 4)
- isi_card[card].port_count = 4;
- else
- isi_card[card].port_count = 8;
- }
- isi_card[card].shift_count = 12;
- break;
-
- case 0xcc: isi_card[card].port_count = 16;
- isi_card[card].shift_count = 11;
- break;
-
- default: printk("ISILoad:Card%d reset failure (Possible bad I/O Port Address 0x%x).\n",card+1,base);
-#ifdef ISICOM_DEBUG
- printk("Sig=0x%x\n",signature);
-#endif
- return -EIO;
+ printk("\nISILoad:ISA Card%d reset failure (Possible bad I/O Port Address 0x%x).\n",card+1,base);
+ return -EIO;
+ }
+ }
+ else {
+ portcount = inw(base+0x2);
+ if (!(inw(base+0xe) & 0x1) || ((portcount!=0) && (portcount!=4) && (portcount!=8))) {
+#ifdef ISICOM_DEBUG
+ printk("\nbase+0x2=0x%x , base+0xe=0x%x",inw(base+0x2),inw(base+0xe));
+#endif
+ printk("\nISILoad:PCI Card%d reset failure (Possible bad I/O Port Address 0x%x).\n",card+1,base);
+ return -EIO;
}
- printk("-Done\n");
- return put_user(signature,(unsigned __user *)argp);
-
+ }
+ switch(signature) {
+ case 0xa5:
+ case 0xbb:
+ case 0xdd:
+ if (isi_card[card].isa)
+ isi_card[card].port_count = 8;
+ else {
+ if (portcount == 4)
+ isi_card[card].port_count = 4;
+ else
+ isi_card[card].port_count = 8;
+ }
+ isi_card[card].shift_count = 12;
+ break;
+
+ case 0xcc: isi_card[card].port_count = 16;
+ isi_card[card].shift_count = 11;
+ break;
+
+ default: printk("ISILoad:Card%d reset failure (Possible bad I/O Port Address 0x%x).\n",card+1,base);
+#ifdef ISICOM_DEBUG
+ printk("Sig=0x%x\n",signature);
+#endif
+ return -EIO;
+ }
+ printk("-Done\n");
+ return put_user(signature,(unsigned __user *)argp);
+
case MIOCTL_LOAD_FIRMWARE:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
-
- if(copy_from_user(&frame, argp, sizeof(bin_frame)))
+
+ if (copy_from_user(&frame, argp, sizeof(bin_frame)))
return -EFAULT;
-
+
if (WaitTillCardIsFree(base))
return -EIO;
-
- outw(0xf0,base); /* start upload sequence */
+
+ outw(0xf0,base); /* start upload sequence */
outw(0x00,base);
- outw((frame.addr), base);/* lsb of adderess */
-
+ outw((frame.addr), base); /* lsb of adderess */
+
word_count=(frame.count >> 1) + frame.count % 2;
outw(word_count, base);
InterruptTheCard(base);
-
- for(i=0;i<=0x2f;i++); /* a wee bit of delay */
-
- if (WaitTillCardIsFree(base))
+
+ for (i=0;i<=0x2f;i++); /* a wee bit of delay */
+
+ if (WaitTillCardIsFree(base))
return -EIO;
-
+
if ((status=inw(base+0x4))!=0) {
- printk(KERN_WARNING "ISILoad:Card%d rejected load header:\nAddress:0x%x \nCount:0x%x \nStatus:0x%x \n",
+ printk(KERN_WARNING "ISILoad:Card%d rejected load header:\nAddress:0x%x \nCount:0x%x \nStatus:0x%x \n",
card+1, frame.addr, frame.count, status);
return -EIO;
}
outsw(base, (void *) frame.bin_data, word_count);
-
+
InterruptTheCard(base);
-
- for(i=0;i<=0x0f;i++); /* another wee bit of delay */
-
- if (WaitTillCardIsFree(base))
+
+ for (i=0;i<=0x0f;i++); /* another wee bit of delay */
+
+ if (WaitTillCardIsFree(base))
return -EIO;
-
+
if ((status=inw(base+0x4))!=0) {
printk(KERN_ERR "ISILoad:Card%d got out of sync.Card Status:0x%x\n",card+1, status);
return -EIO;
- }
+ }
return 0;
-
+
case MIOCTL_READ_FIRMWARE:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
-
- if(copy_from_user(&frame, argp, sizeof(bin_header)))
+
+ if (copy_from_user(&frame, argp, sizeof(bin_header)))
return -EFAULT;
-
+
if (WaitTillCardIsFree(base))
return -EIO;
-
- outw(0xf1,base); /* start download sequence */
+
+ outw(0xf1,base); /* start download sequence */
outw(0x00,base);
- outw((frame.addr), base);/* lsb of adderess */
-
+ outw((frame.addr), base); /* lsb of adderess */
+
word_count=(frame.count >> 1) + frame.count % 2;
outw(word_count+1, base);
InterruptTheCard(base);
-
- for(i=0;i<=0xf;i++); /* a wee bit of delay */
-
- if (WaitTillCardIsFree(base))
+
+ for (i=0;i<=0xf;i++); /* a wee bit of delay */
+
+ if (WaitTillCardIsFree(base))
return -EIO;
-
+
if ((status=inw(base+0x4))!=0) {
- printk(KERN_WARNING "ISILoad:Card%d rejected verify header:\nAddress:0x%x \nCount:0x%x \nStatus:0x%x \n",
+ printk(KERN_WARNING "ISILoad:Card%d rejected verify header:\nAddress:0x%x \nCount:0x%x \nStatus:0x%x \n",
card+1, frame.addr, frame.count, status);
return -EIO;
}
-
+
inw(base);
insw(base, frame.bin_data, word_count);
InterruptTheCard(base);
-
- for(i=0;i<=0x0f;i++); /* another wee bit of delay */
-
- if (WaitTillCardIsFree(base))
+
+ for (i=0;i<=0x0f;i++); /* another wee bit of delay */
+
+ if (WaitTillCardIsFree(base))
return -EIO;
-
+
if ((status=inw(base+0x4))!=0) {
printk(KERN_ERR "ISILoad:Card%d verify got out of sync.Card Status:0x%x\n",card+1, status);
return -EIO;
- }
-
- if(copy_to_user(argp, &frame, sizeof(bin_frame)))
+ }
+
+ if (copy_to_user(argp, &frame, sizeof(bin_frame)))
return -EFAULT;
return 0;
-
+
case MIOCTL_XFER_CTRL:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (WaitTillCardIsFree(base))
+ if (WaitTillCardIsFree(base))
return -EIO;
-
+
outw(0xf2, base);
outw(0x800, base);
outw(0x0, base);
outw(0x0, base);
InterruptTheCard(base);
- outw(0x0, base+0x4); /* for ISI4608 cards */
-
+ outw(0x0, base+0x4); /* for ISI4608 cards */
+
isi_card[card].status |= FIRMWARE_LOADED;
- return 0;
-
+ return 0;
+
default:
-#ifdef ISICOM_DEBUG
- printk(KERN_DEBUG "ISILoad: Received Ioctl cmd 0x%x.\n", cmd);
+#ifdef ISICOM_DEBUG
+ printk(KERN_DEBUG "ISILoad: Received Ioctl cmd 0x%x.\n", cmd);
#endif
return -ENOIOCTLCMD;
-
}
-
}
-
+
/*
* ISICOM Driver specific routines ...
*
*/
-
-static inline int isicom_paranoia_check(struct isi_port const * port, char *name,
- const char * routine)
+
+static inline int isicom_paranoia_check(struct isi_port const *port, char *name,
+ const char *routine)
{
-#ifdef ISICOM_DEBUG
- static const char * badmagic =
+#ifdef ISICOM_DEBUG
+ static const char *badmagic =
KERN_WARNING "ISICOM: Warning: bad isicom magic for dev %s in %s.\n";
- static const char * badport =
- KERN_WARNING "ISICOM: Warning: NULL isicom port for dev %s in %s.\n";
+ static const char *badport =
+ KERN_WARNING "ISICOM: Warning: NULL isicom port for dev %s in %s.\n";
if (!port) {
printk(badport, name, routine);
return 1;
if (port->magic != ISICOM_MAGIC) {
printk(badmagic, name, routine);
return 1;
- }
-#endif
+ }
+#endif
return 0;
}
-
+
/*
- * Transmitter.
+ * Transmitter.
*
* We shovel data into the card buffers on a regular basis. The card
* will do the rest of the work for us.
{
short count = (BOARD_COUNT-1), card, base;
short txcount, wrd, residue, word_count, cnt;
- struct isi_port * port;
- struct tty_struct * tty;
-
+ struct isi_port *port;
+ struct tty_struct *tty;
+
#ifdef ISICOM_DEBUG
++tx_count;
-#endif
-
+#endif
+
/* find next active board */
card = (prev_card + 1) & 0x0003;
while(count-- > 0) {
- if (isi_card[card].status & BOARD_ACTIVE)
+ if (isi_card[card].status & BOARD_ACTIVE)
break;
- card = (card + 1) & 0x0003;
+ card = (card + 1) & 0x0003;
}
if (!(isi_card[card].status & BOARD_ACTIVE))
goto sched_again;
-
+
prev_card = card;
-
+
count = isi_card[card].port_count;
port = isi_card[card].ports;
base = isi_card[card].base;
continue;
/* port not active or tx disabled to force flow control */
if (!(port->flags & ASYNC_INITIALIZED) ||
- !(port->status & ISI_TXOK))
+ !(port->status & ISI_TXOK))
unlock_card(&isi_card[card]);
continue;
-
+
tty = port->tty;
-
-
- if(tty == NULL) {
+
+
+ if (tty == NULL) {
unlock_card(&isi_card[card]);
continue;
}
-
+
txcount = min_t(short, TX_SIZE, port->xmit_cnt);
if (txcount <= 0 || tty->stopped || tty->hw_stopped) {
unlock_card(&isi_card[card]);
}
if (!(inw(base + 0x02) & (1 << port->channel))) {
unlock_card(&isi_card[card]);
- continue;
+ continue;
}
#ifdef ISICOM_DEBUG
- printk(KERN_DEBUG "ISICOM: txing %d bytes, port%d.\n",
- txcount, port->channel+1);
-#endif
+ printk(KERN_DEBUG "ISICOM: txing %d bytes, port%d.\n",
+ txcount, port->channel+1);
+#endif
outw((port->channel << isi_card[card].shift_count) | txcount
, base);
residue = NO;
- wrd = 0;
+ wrd = 0;
while (1) {
cnt = min_t(int, txcount, (SERIAL_XMIT_SIZE - port->xmit_tail));
if (residue == YES) {
port->xmit_cnt--;
txcount--;
cnt--;
- outw(wrd, base);
+ outw(wrd, base);
}
else {
outw(wrd, base);
break;
}
- }
+ }
if (cnt <= 0) break;
word_count = cnt >> 1;
outsw(base, port->xmit_buf+port->xmit_tail, word_count);
if (port->xmit_cnt <= WAKEUP_CHARS)
schedule_work(&port->bh_tqueue);
unlock_card(&isi_card[card]);
- }
+ }
- /* schedule another tx for hopefully in about 10ms */
-sched_again:
- if (!re_schedule)
+ /* schedule another tx for hopefully in about 10ms */
+sched_again:
+ if (!re_schedule)
return;
init_timer(&tx);
tx.expires = jiffies + HZ/100;
tx.data = 0;
tx.function = isicom_tx;
add_timer(&tx);
-
- return;
-}
-
+
+ return;
+}
+
/* Interrupt handlers */
-
-static void isicom_bottomhalf(void * data)
+
+static void isicom_bottomhalf(void *data)
{
- struct isi_port * port = (struct isi_port *) data;
- struct tty_struct * tty = port->tty;
-
+ struct isi_port *port = (struct isi_port *) data;
+ struct tty_struct *tty = port->tty;
+
if (!tty)
return;
- tty_wakeup(tty);
+ tty_wakeup(tty);
wake_up_interruptible(&tty->write_wait);
-}
-
+}
+
/*
- * Main interrupt handler routine
+ * Main interrupt handler routine
*/
-
+
static irqreturn_t isicom_interrupt(int irq, void *dev_id,
struct pt_regs *regs)
{
- struct isi_board * card;
- struct isi_port * port;
- struct tty_struct * tty;
+ struct isi_board *card;
+ struct isi_port *port;
+ struct tty_struct *tty;
unsigned short base, header, word_count, count;
unsigned char channel;
short byte_count;
unsigned char *rp;
-
+
card = (struct isi_board *) dev_id;
if (!card || !(card->status & FIRMWARE_LOADED))
return IRQ_NONE;
-
+
base = card->base;
spin_lock(&card->card_lock);
-
+
if (card->isa == NO) {
/*
- * disable any interrupts from the PCI card and lower the
- * interrupt line
+ * disable any interrupts from the PCI card and lower the
+ * interrupt line
*/
outw(0x8000, base+0x04);
ClearInterrupt(base);
}
-
+
inw(base); /* get the dummy word out */
header = inw(base);
channel = (header & 0x7800) >> card->shift_count;
if (card->isa)
ClearInterrupt(base);
else
- outw(0x0000, base+0x04); /* enable interrupts */
+ outw(0x0000, base+0x04); /* enable interrupts */
spin_unlock(&card->card_lock);
- return IRQ_HANDLED;
+ return IRQ_HANDLED;
}
port = card->ports + channel;
if (!(port->flags & ASYNC_INITIALIZED)) {
else
outw(0x0000, base+0x04); /* enable interrupts */
return IRQ_HANDLED;
- }
-
+ }
+
tty = port->tty;
if (tty == NULL) {
word_count = byte_count >> 1;
spin_unlock(&card->card_lock);
return IRQ_HANDLED;
}
-
+
if (header & 0x8000) { /* Status Packet */
header = inw(base);
switch(header & 0xff) {
- case 0: /* Change in EIA signals */
-
- if (port->flags & ASYNC_CHECK_CD) {
- if (port->status & ISI_DCD) {
- if (!(header & ISI_DCD)) {
- /* Carrier has been lost */
-#ifdef ISICOM_DEBUG
- printk(KERN_DEBUG "ISICOM: interrupt: DCD->low.\n");
-#endif
- port->status &= ~ISI_DCD;
- schedule_work(&port->hangup_tq);
- }
- }
- else {
- if (header & ISI_DCD) {
- /* Carrier has been detected */
+ case 0: /* Change in EIA signals */
+
+ if (port->flags & ASYNC_CHECK_CD) {
+ if (port->status & ISI_DCD) {
+ if (!(header & ISI_DCD)) {
+ /* Carrier has been lost */
#ifdef ISICOM_DEBUG
- printk(KERN_DEBUG "ISICOM: interrupt: DCD->high.\n");
-#endif
- port->status |= ISI_DCD;
- wake_up_interruptible(&port->open_wait);
- }
+ printk(KERN_DEBUG "ISICOM: interrupt: DCD->low.\n");
+#endif
+ port->status &= ~ISI_DCD;
+ schedule_work(&port->hangup_tq);
}
}
else {
- if (header & ISI_DCD)
+ if (header & ISI_DCD) {
+ /* Carrier has been detected */
+#ifdef ISICOM_DEBUG
+ printk(KERN_DEBUG "ISICOM: interrupt: DCD->high.\n");
+#endif
port->status |= ISI_DCD;
- else
- port->status &= ~ISI_DCD;
- }
-
- if (port->flags & ASYNC_CTS_FLOW) {
- if (port->tty->hw_stopped) {
- if (header & ISI_CTS) {
- port->tty->hw_stopped = 0;
- /* start tx ing */
- port->status |= (ISI_TXOK | ISI_CTS);
- schedule_work(&port->bh_tqueue);
- }
+ wake_up_interruptible(&port->open_wait);
}
- else {
- if (!(header & ISI_CTS)) {
- port->tty->hw_stopped = 1;
- /* stop tx ing */
- port->status &= ~(ISI_TXOK | ISI_CTS);
- }
+ }
+ }
+ else {
+ if (header & ISI_DCD)
+ port->status |= ISI_DCD;
+ else
+ port->status &= ~ISI_DCD;
+ }
+
+ if (port->flags & ASYNC_CTS_FLOW) {
+ if (port->tty->hw_stopped) {
+ if (header & ISI_CTS) {
+ port->tty->hw_stopped = 0;
+ /* start tx ing */
+ port->status |= (ISI_TXOK | ISI_CTS);
+ schedule_work(&port->bh_tqueue);
}
}
else {
- if (header & ISI_CTS)
- port->status |= ISI_CTS;
- else
- port->status &= ~ISI_CTS;
+ if (!(header & ISI_CTS)) {
+ port->tty->hw_stopped = 1;
+ /* stop tx ing */
+ port->status &= ~(ISI_TXOK | ISI_CTS);
+ }
}
-
- if (header & ISI_DSR)
- port->status |= ISI_DSR;
- else
- port->status &= ~ISI_DSR;
-
- if (header & ISI_RI)
- port->status |= ISI_RI;
+ }
+ else {
+ if (header & ISI_CTS)
+ port->status |= ISI_CTS;
else
- port->status &= ~ISI_RI;
-
- break;
-
- case 1: /* Received Break !!! */
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (port->flags & ASYNC_SAK)
- do_SAK(tty);
- tty_flip_buffer_push(tty);
- break;
-
- case 2: /* Statistics */
- printk(KERN_DEBUG "ISICOM: isicom_interrupt: stats!!!.\n");
- break;
-
- default:
- printk(KERN_WARNING "ISICOM: Intr: Unknown code in status packet.\n");
- break;
- }
+ port->status &= ~ISI_CTS;
+ }
+
+ if (header & ISI_DSR)
+ port->status |= ISI_DSR;
+ else
+ port->status &= ~ISI_DSR;
+
+ if (header & ISI_RI)
+ port->status |= ISI_RI;
+ else
+ port->status &= ~ISI_RI;
+
+ break;
+
+ case 1: /* Received Break !!! */
+ tty_insert_flip_char(tty, 0, TTY_BREAK);
+ if (port->flags & ASYNC_SAK)
+ do_SAK(tty);
+ tty_flip_buffer_push(tty);
+ break;
+
+ case 2: /* Statistics */
+ printk(KERN_DEBUG "ISICOM: isicom_interrupt: stats!!!.\n");
+ break;
+
+ default:
+ printk(KERN_WARNING "ISICOM: Intr: Unknown code in status packet.\n");
+ break;
+ }
}
else { /* Data Packet */
count = tty_prepare_flip_string(tty, &rp, byte_count & ~1);
#ifdef ISICOM_DEBUG
- printk(KERN_DEBUG "ISICOM: Intr: Can rx %d of %d bytes.\n",
+ printk(KERN_DEBUG "ISICOM: Intr: Can rx %d of %d bytes.\n",
count, byte_count);
-#endif
+#endif
word_count = count >> 1;
insw(base, rp, word_count);
byte_count -= (word_count << 1);
if (count & 0x0001) {
tty_insert_flip_char(tty, inw(base) & 0xff, TTY_NORMAL);
byte_count -= 2;
- }
+ }
if (byte_count > 0) {
printk(KERN_DEBUG "ISICOM: Intr(0x%x:%d): Flip buffer overflow! dropping bytes...\n",
base, channel+1);
if (card->isa == YES)
ClearInterrupt(base);
else
- outw(0x0000, base+0x04); /* enable interrupts */
+ outw(0x0000, base+0x04); /* enable interrupts */
return IRQ_HANDLED;
-}
+}
-static void isicom_config_port(struct isi_port * port)
+static void isicom_config_port(struct isi_port *port)
{
- struct isi_board * card = port->card;
- struct tty_struct * tty;
+ struct isi_board *card = port->card;
+ struct tty_struct *tty;
unsigned long baud;
unsigned short channel_setup, base = card->base;
unsigned short channel = port->channel, shift_count = card->shift_count;
unsigned char flow_ctrl;
-
+
if (!(tty = port->tty) || !tty->termios)
return;
baud = C_BAUD(tty);
if (baud & CBAUDEX) {
baud &= ~CBAUDEX;
-
+
/* if CBAUDEX bit is on and the baud is set to either 50 or 75
* then the card is programmed for 57.6Kbps or 115Kbps
* respectively.
- */
-
+ */
+
if (baud < 1 || baud > 2)
port->tty->termios->c_cflag &= ~CBAUDEX;
else
baud += 15;
- }
+ }
if (baud == 15) {
-
- /* the ASYNC_SPD_HI and ASYNC_SPD_VHI options are set
+
+ /* the ASYNC_SPD_HI and ASYNC_SPD_VHI options are set
* by the set_serial_info ioctl ... this is done by
* the 'setserial' utility.
- */
-
+ */
+
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baud++; /* 57.6 Kbps */
+ baud++; /* 57.6 Kbps */
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baud +=2; /* 115 Kbps */
+ baud +=2; /* 115 Kbps */
}
if (linuxb_to_isib[baud] == -1) {
/* hang up */
- drop_dtr(port);
- return;
- }
- else
+ drop_dtr(port);
+ return;
+ }
+ else
raise_dtr(port);
-
+
if (lock_card(card)) {
outw(0x8000 | (channel << shift_count) |0x03, base);
outw(linuxb_to_isib[baud] << 8 | 0x03, base);
channel_setup = 0;
switch(C_CSIZE(tty)) {
- case CS5:
- channel_setup |= ISICOM_CS5;
- break;
- case CS6:
- channel_setup |= ISICOM_CS6;
- break;
- case CS7:
- channel_setup |= ISICOM_CS7;
- break;
- case CS8:
- channel_setup |= ISICOM_CS8;
- break;
+ case CS5:
+ channel_setup |= ISICOM_CS5;
+ break;
+ case CS6:
+ channel_setup |= ISICOM_CS6;
+ break;
+ case CS7:
+ channel_setup |= ISICOM_CS7;
+ break;
+ case CS8:
+ channel_setup |= ISICOM_CS8;
+ break;
}
-
+
if (C_CSTOPB(tty))
channel_setup |= ISICOM_2SB;
if (C_PARENB(tty)) {
channel_setup |= ISICOM_EVPAR;
if (C_PARODD(tty))
- channel_setup |= ISICOM_ODPAR;
+ channel_setup |= ISICOM_ODPAR;
}
- outw(channel_setup, base);
+ outw(channel_setup, base);
InterruptTheCard(base);
- unlock_card(card);
- }
+ unlock_card(card);
+ }
if (C_CLOCAL(tty))
port->flags &= ~ASYNC_CHECK_CD;
else
- port->flags |= ASYNC_CHECK_CD;
-
+ port->flags |= ASYNC_CHECK_CD;
+
/* flow control settings ...*/
flow_ctrl = 0;
port->flags &= ~ASYNC_CTS_FLOW;
if (C_CRTSCTS(tty)) {
port->flags |= ASYNC_CTS_FLOW;
flow_ctrl |= ISICOM_CTSRTS;
- }
- if (I_IXON(tty))
+ }
+ if (I_IXON(tty))
flow_ctrl |= ISICOM_RESPOND_XONXOFF;
if (I_IXOFF(tty))
- flow_ctrl |= ISICOM_INITIATE_XONXOFF;
-
+ flow_ctrl |= ISICOM_INITIATE_XONXOFF;
+
if (lock_card(card)) {
outw(0x8000 | (channel << shift_count) |0x04, base);
outw(flow_ctrl << 8 | 0x05, base);
InterruptTheCard(base);
unlock_card(card);
}
-
+
/* rx enabled -> enable port for rx on the card */
if (C_CREAD(tty)) {
card->port_status |= (1 << channel);
outw(card->port_status, base + 0x02);
}
}
-
-/* open et all */
-static inline void isicom_setup_board(struct isi_board * bp)
+/* open et all */
+
+static inline void isicom_setup_board(struct isi_board *bp)
{
int channel;
- struct isi_port * port;
+ struct isi_port *port;
unsigned long flags;
-
+
spin_lock_irqsave(&bp->card_lock, flags);
if (bp->status & BOARD_ACTIVE) {
spin_unlock_irqrestore(&bp->card_lock, flags);
port = bp->ports;
bp->status |= BOARD_ACTIVE;
spin_unlock_irqrestore(&bp->card_lock, flags);
- for(channel = 0; channel < bp->port_count; channel++, port++)
+ for (channel = 0; channel < bp->port_count; channel++, port++)
drop_dtr_rts(port);
return;
}
-
-static int isicom_setup_port(struct isi_port * port)
+
+static int isicom_setup_port(struct isi_port *port)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
unsigned long flags;
-
+
if (port->flags & ASYNC_INITIALIZED) {
return 0;
}
if (!port->xmit_buf) {
unsigned long page;
-
+
if (!(page = get_zeroed_page(GFP_KERNEL)))
return -ENOMEM;
-
+
if (port->xmit_buf) {
free_page(page);
return -ERESTARTSYS;
}
- port->xmit_buf = (unsigned char *) page;
- }
+ port->xmit_buf = (unsigned char *) page;
+ }
spin_lock_irqsave(&card->card_lock, flags);
if (port->tty)
clear_bit(TTY_IO_ERROR, &port->tty->flags);
if (port->count == 1)
card->count++;
-
+
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
-
+
/* discard any residual data */
kill_queue(port, ISICOM_KILLTX | ISICOM_KILLRX);
-
+
isicom_config_port(port);
port->flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&card->card_lock, flags);
-
- return 0;
-}
-
-static int block_til_ready(struct tty_struct * tty, struct file * filp, struct isi_port * port)
+
+ return 0;
+}
+
+static int block_til_ready(struct tty_struct *tty, struct file *filp, struct isi_port *port)
{
- struct isi_board * card = port->card;
+ struct isi_board *card = port->card;
int do_clocal = 0, retval;
unsigned long flags;
DECLARE_WAITQUEUE(wait, current);
/* block if port is in the process of being closed */
if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
-#ifdef ISICOM_DEBUG
+#ifdef ISICOM_DEBUG
printk(KERN_DEBUG "ISICOM: block_til_ready: close in progress.\n");
-#endif
+#endif
interruptible_sleep_on(&port->close_wait);
if (port->flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
}
-
+
/* if non-blocking mode is set ... */
-
+
if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) {
-#ifdef ISICOM_DEBUG
+#ifdef ISICOM_DEBUG
printk(KERN_DEBUG "ISICOM: block_til_ready: non-block mode.\n");
-#endif
+#endif
port->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
+ return 0;
+ }
+
if (C_CLOCAL(tty))
do_clocal = 1;
-
- /* block waiting for DCD to be asserted, and while
+
+ /* block waiting for DCD to be asserted, and while
callout dev is busy */
retval = 0;
add_wait_queue(&port->open_wait, &wait);
port->count--;
port->blocked_open++;
spin_unlock_irqrestore(&card->card_lock, flags);
-
+
while (1) {
raise_dtr_rts(port);
set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
+ if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
if (port->flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
- }
+ }
if (!(port->flags & ASYNC_CLOSING) &&
- (do_clocal || (port->status & ISI_DCD))) {
+ (do_clocal || (port->status & ISI_DCD))) {
break;
- }
+ }
if (signal_pending(current)) {
retval = -ERESTARTSYS;
break;
}
- schedule();
+ schedule();
}
set_current_state(TASK_RUNNING);
remove_wait_queue(&port->open_wait, &wait);
port->flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
-
-static int isicom_open(struct tty_struct * tty, struct file * filp)
+
+static int isicom_open(struct tty_struct *tty, struct file *filp)
{
- struct isi_port * port;
- struct isi_board * card;
+ struct isi_port *port;
+ struct isi_board *card;
unsigned int line, board;
int error;
return -ENODEV;
board = BOARD(line);
card = &isi_card[board];
-
+
if (!(card->status & FIRMWARE_LOADED))
return -ENODEV;
-
+
/* open on a port greater than the port count for the card !!! */
if (line > ((board * 16) + card->port_count - 1))
return -ENODEV;
- port = &isi_ports[line];
+ port = &isi_ports[line];
if (isicom_paranoia_check(port, tty->name, "isicom_open"))
return -ENODEV;
-
- isicom_setup_board(card);
-
+
+ isicom_setup_board(card);
+
port->count++;
tty->driver_data = port;
port->tty = tty;
if ((error = block_til_ready(tty, filp, port))!=0)
return error;
- return 0;
+ return 0;
}
-
+
/* close et all */
-static inline void isicom_shutdown_board(struct isi_board * bp)
+static inline void isicom_shutdown_board(struct isi_board *bp)
{
unsigned long flags;
spin_unlock_irqrestore(&bp->card_lock, flags);
}
-static void isicom_shutdown_port(struct isi_port * port)
+static void isicom_shutdown_port(struct isi_port *port)
{
- struct isi_board * card = port->card;
- struct tty_struct * tty;
+ struct isi_board *card = port->card;
+ struct tty_struct *tty;
unsigned long flags;
-
+
tty = port->tty;
- spin_lock_irqsave(&card->card_lock, flags);
+ spin_lock_irqsave(&card->card_lock, flags);
if (!(port->flags & ASYNC_INITIALIZED)) {
spin_unlock_irqrestore(&card->card_lock, flags);
return;
if (port->xmit_buf) {
free_page((unsigned long) port->xmit_buf);
port->xmit_buf = NULL;
- }
+ }
port->flags &= ~ASYNC_INITIALIZED;
/* 3rd October 2000 : Vinayak P Risbud */
port->tty = NULL;
spin_unlock_irqrestore(&card->card_lock, flags);
-
+
/*Fix done by Anil .S on 30-04-2001
remote login through isi port has dtr toggle problem
due to which the carrier drops before the password prompt
- appears on the remote end. Now we drop the dtr only if the
+ appears on the remote end. Now we drop the dtr only if the
HUPCL(Hangup on close) flag is set for the tty*/
-
- if (C_HUPCL(tty))
+
+ if (C_HUPCL(tty))
/* drop dtr on this port */
drop_dtr(port);
-
- /* any other port uninits */
+
+ /* any other port uninits */
if (tty)
set_bit(TTY_IO_ERROR, &tty->flags);
-
+
if (--card->count < 0) {
printk(KERN_DEBUG "ISICOM: isicom_shutdown_port: bad board(0x%x) count %d.\n",
card->base, card->count);
- card->count = 0;
+ card->count = 0;
}
-
+
/* last port was closed , shutdown that boad too */
- if(C_HUPCL(tty)) {
+ if (C_HUPCL(tty)) {
if (!card->count)
isicom_shutdown_board(card);
}
}
-static void isicom_close(struct tty_struct * tty, struct file * filp)
+static void isicom_close(struct tty_struct *tty, struct file *filp)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
- struct isi_board * card = port->card;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+ struct isi_board *card = port->card;
unsigned long flags;
-
+
if (!port)
return;
if (isicom_paranoia_check(port, tty->name, "isicom_close"))
return;
-
-#ifdef ISICOM_DEBUG
+
+#ifdef ISICOM_DEBUG
printk(KERN_DEBUG "ISICOM: Close start!!!.\n");
-#endif
-
+#endif
+
spin_lock_irqsave(&card->card_lock, flags);
if (tty_hung_up_p(filp)) {
spin_unlock_irqrestore(&card->card_lock, flags);
return;
}
-
+
if (tty->count == 1 && port->count != 1) {
printk(KERN_WARNING "ISICOM:(0x%x) isicom_close: bad port count"
"tty->count = 1 port count = %d.\n",
}
if (--port->count < 0) {
printk(KERN_WARNING "ISICOM:(0x%x) isicom_close: bad port count for"
- "channel%d = %d", card->base, port->channel,
+ "channel%d = %d", card->base, port->channel,
port->count);
- port->count = 0;
+ port->count = 0;
}
-
+
if (port->count) {
spin_unlock_irqrestore(&card->card_lock, flags);
return;
- }
+ }
port->flags |= ASYNC_CLOSING;
tty->closing = 1;
spin_unlock_irqrestore(&card->card_lock, flags);
-
+
if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
tty_wait_until_sent(tty, port->closing_wait);
- /* indicate to the card that no more data can be received
+ /* indicate to the card that no more data can be received
on this port */
spin_lock_irqsave(&card->card_lock, flags);
- if (port->flags & ASYNC_INITIALIZED) {
+ if (port->flags & ASYNC_INITIALIZED) {
card->port_status &= ~(1 << port->channel);
outw(card->port_status, card->base + 0x02);
- }
+ }
isicom_shutdown_port(port);
spin_unlock_irqrestore(&card->card_lock, flags);
-
+
if (tty->driver->flush_buffer)
tty->driver->flush_buffer(tty);
tty_ldisc_flush(tty);
if (port->blocked_open) {
spin_unlock_irqrestore(&card->card_lock, flags);
if (port->close_delay) {
-#ifdef ISICOM_DEBUG
+#ifdef ISICOM_DEBUG
printk(KERN_DEBUG "ISICOM: scheduling until time out.\n");
-#endif
+#endif
msleep_interruptible(jiffies_to_msecs(port->close_delay));
}
spin_lock_irqsave(&card->card_lock, flags);
wake_up_interruptible(&port->open_wait);
- }
+ }
port->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
wake_up_interruptible(&port->close_wait);
spin_unlock_irqrestore(&card->card_lock, flags);
}
/* write et all */
-static int isicom_write(struct tty_struct * tty,
- const unsigned char * buf, int count)
+static int isicom_write(struct tty_struct *tty, const unsigned char *buf,
+ int count)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
- struct isi_board * card = port->card;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+ struct isi_board *card = port->card;
unsigned long flags;
int cnt, total = 0;
if (isicom_paranoia_check(port, tty->name, "isicom_write"))
return 0;
-
+
if (!tty || !port->xmit_buf || !tmp_buf)
return 0;
-
+
spin_lock_irqsave(&card->card_lock, flags);
-
- while(1) {
+
+ while(1) {
cnt = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - port->xmit_head));
- if (cnt <= 0)
+ SERIAL_XMIT_SIZE - port->xmit_head));
+ if (cnt <= 0)
break;
-
+
memcpy(port->xmit_buf + port->xmit_head, buf, cnt);
port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE - 1);
port->xmit_cnt += cnt;
buf += cnt;
count -= cnt;
total += cnt;
- }
+ }
if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped)
port->status |= ISI_TXOK;
spin_unlock_irqrestore(&card->card_lock, flags);
- return total;
+ return total;
}
/* put_char et all */
-static void isicom_put_char(struct tty_struct * tty, unsigned char ch)
+static void isicom_put_char(struct tty_struct *tty, unsigned char ch)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
- struct isi_board * card = port->card;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+ struct isi_board *card = port->card;
unsigned long flags;
-
+
if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))
return;
-
+
if (!tty || !port->xmit_buf)
return;
spin_unlock_irqrestore(&card->card_lock, flags);
return;
}
-
+
port->xmit_buf[port->xmit_head++] = ch;
port->xmit_head &= (SERIAL_XMIT_SIZE - 1);
port->xmit_cnt++;
}
/* flush_chars et all */
-static void isicom_flush_chars(struct tty_struct * tty)
+static void isicom_flush_chars(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
-
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+
if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars"))
return;
-
+
if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || !port->xmit_buf)
return;
-
+
/* this tells the transmitter to consider this port for
data output to the card ... that's the best we can do. */
- port->status |= ISI_TXOK;
+ port->status |= ISI_TXOK;
}
/* write_room et all */
-static int isicom_write_room(struct tty_struct * tty)
+static int isicom_write_room(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
int free;
if (isicom_paranoia_check(port, tty->name, "isicom_write_room"))
return 0;
-
+
free = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
if (free < 0)
free = 0;
}
/* chars_in_buffer et all */
-static int isicom_chars_in_buffer(struct tty_struct * tty)
+static int isicom_chars_in_buffer(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer"))
return 0;
return port->xmit_cnt;
}
/* ioctl et all */
-static inline void isicom_send_break(struct isi_port * port, unsigned long length)
+static inline void isicom_send_break(struct isi_port *port, unsigned long length)
{
- struct isi_board * card = port->card;
- unsigned short base = card->base;
-
- if(!lock_card(card))
+ struct isi_board *card = port->card;
+ unsigned short base = card->base;
+
+ if (!lock_card(card))
return;
-
+
outw(0x8000 | ((port->channel) << (card->shift_count)) | 0x3, base);
outw((length & 0xff) << 8 | 0x00, base);
outw((length & 0xff00), base);
static int isicom_tiocmget(struct tty_struct *tty, struct file *file)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
/* just send the port status */
unsigned short status = port->status;
if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
return -ENODEV;
-
+
return ((status & ISI_RTS) ? TIOCM_RTS : 0) |
((status & ISI_DTR) ? TIOCM_DTR : 0) |
((status & ISI_DCD) ? TIOCM_CAR : 0) |
}
static int isicom_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
+ unsigned int set, unsigned int clear)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
-
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+
if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
return -ENODEV;
-
+
if (set & TIOCM_RTS)
raise_rts(port);
if (set & TIOCM_DTR)
drop_dtr(port);
return 0;
-}
+}
-static int isicom_set_serial_info(struct isi_port * port,
- struct serial_struct __user *info)
+static int isicom_set_serial_info(struct isi_port *port,
+ struct serial_struct __user *info)
{
struct serial_struct newinfo;
int reconfig_port;
- if(copy_from_user(&newinfo, info, sizeof(newinfo)))
+ if (copy_from_user(&newinfo, info, sizeof(newinfo)))
return -EFAULT;
-
- reconfig_port = ((port->flags & ASYNC_SPD_MASK) !=
- (newinfo.flags & ASYNC_SPD_MASK));
-
+
+ reconfig_port = ((port->flags & ASYNC_SPD_MASK) !=
+ (newinfo.flags & ASYNC_SPD_MASK));
+
if (!capable(CAP_SYS_ADMIN)) {
if ((newinfo.close_delay != port->close_delay) ||
- (newinfo.closing_wait != port->closing_wait) ||
- ((newinfo.flags & ~ASYNC_USR_MASK) !=
- (port->flags & ~ASYNC_USR_MASK)))
+ (newinfo.closing_wait != port->closing_wait) ||
+ ((newinfo.flags & ~ASYNC_USR_MASK) !=
+ (port->flags & ~ASYNC_USR_MASK)))
return -EPERM;
port->flags = ((port->flags & ~ ASYNC_USR_MASK) |
(newinfo.flags & ASYNC_USR_MASK));
- }
+ }
else {
port->close_delay = newinfo.close_delay;
- port->closing_wait = newinfo.closing_wait;
- port->flags = ((port->flags & ~ASYNC_FLAGS) |
+ port->closing_wait = newinfo.closing_wait;
+ port->flags = ((port->flags & ~ASYNC_FLAGS) |
(newinfo.flags & ASYNC_FLAGS));
}
if (reconfig_port) {
isicom_config_port(port);
}
- return 0;
-}
+ return 0;
+}
-static int isicom_get_serial_info(struct isi_port * port,
- struct serial_struct __user *info)
+static int isicom_get_serial_info(struct isi_port *port,
+ struct serial_struct __user *info)
{
struct serial_struct out_info;
-
+
memset(&out_info, 0, sizeof(out_info));
/* out_info.type = ? */
out_info.line = port - isi_ports;
/* out_info.baud_base = ? */
out_info.close_delay = port->close_delay;
out_info.closing_wait = port->closing_wait;
- if(copy_to_user(info, &out_info, sizeof(out_info)))
+ if (copy_to_user(info, &out_info, sizeof(out_info)))
return -EFAULT;
return 0;
-}
+}
-static int isicom_ioctl(struct tty_struct * tty, struct file * filp,
- unsigned int cmd, unsigned long arg)
+static int isicom_ioctl(struct tty_struct *tty, struct file *filp,
+ unsigned int cmd, unsigned long arg)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
void __user *argp = (void __user *)arg;
int retval;
return -ENODEV;
switch(cmd) {
- case TCSBRK:
- retval = tty_check_change(tty);
- if (retval)
- return retval;
- tty_wait_until_sent(tty, 0);
- if (!arg)
- isicom_send_break(port, HZ/4);
- return 0;
-
- case TCSBRKP:
- retval = tty_check_change(tty);
- if (retval)
- return retval;
- tty_wait_until_sent(tty, 0);
- isicom_send_break(port, arg ? arg * (HZ/10) : HZ/4);
- return 0;
-
- case TIOCGSOFTCAR:
- return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *)argp);
-
- case TIOCSSOFTCAR:
- if(get_user(arg, (unsigned long __user *) argp))
- return -EFAULT;
- tty->termios->c_cflag =
- ((tty->termios->c_cflag & ~CLOCAL) |
- (arg ? CLOCAL : 0));
- return 0;
-
- case TIOCGSERIAL:
- return isicom_get_serial_info(port, argp);
-
- case TIOCSSERIAL:
- return isicom_set_serial_info(port, argp);
-
- default:
- return -ENOIOCTLCMD;
+ case TCSBRK:
+ retval = tty_check_change(tty);
+ if (retval)
+ return retval;
+ tty_wait_until_sent(tty, 0);
+ if (!arg)
+ isicom_send_break(port, HZ/4);
+ return 0;
+
+ case TCSBRKP:
+ retval = tty_check_change(tty);
+ if (retval)
+ return retval;
+ tty_wait_until_sent(tty, 0);
+ isicom_send_break(port, arg ? arg * (HZ/10) : HZ/4);
+ return 0;
+
+ case TIOCGSOFTCAR:
+ return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *)argp);
+
+ case TIOCSSOFTCAR:
+ if (get_user(arg, (unsigned long __user *) argp))
+ return -EFAULT;
+ tty->termios->c_cflag =
+ ((tty->termios->c_cflag & ~CLOCAL) |
+ (arg ? CLOCAL : 0));
+ return 0;
+
+ case TIOCGSERIAL:
+ return isicom_get_serial_info(port, argp);
+
+ case TIOCSSERIAL:
+ return isicom_set_serial_info(port, argp);
+
+ default:
+ return -ENOIOCTLCMD;
}
return 0;
}
/* set_termios et all */
-static void isicom_set_termios(struct tty_struct * tty, struct termios * old_termios)
+static void isicom_set_termios(struct tty_struct *tty,
+ struct termios *old_termios)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
-
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+
if (isicom_paranoia_check(port, tty->name, "isicom_set_termios"))
return;
-
+
if (tty->termios->c_cflag == old_termios->c_cflag &&
- tty->termios->c_iflag == old_termios->c_iflag)
+ tty->termios->c_iflag == old_termios->c_iflag)
return;
-
+
isicom_config_port(port);
-
+
if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
+ !(tty->termios->c_cflag & CRTSCTS)) {
tty->hw_stopped = 0;
- isicom_start(tty);
- }
+ isicom_start(tty);
+ }
}
/* throttle et all */
-static void isicom_throttle(struct tty_struct * tty)
+static void isicom_throttle(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
- struct isi_board * card = port->card;
-
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+ struct isi_board *card = port->card;
+
if (isicom_paranoia_check(port, tty->name, "isicom_throttle"))
return;
-
+
/* tell the card that this port cannot handle any more data for now */
card->port_status &= ~(1 << port->channel);
outw(card->port_status, card->base + 0x02);
}
/* unthrottle et all */
-static void isicom_unthrottle(struct tty_struct * tty)
+static void isicom_unthrottle(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
- struct isi_board * card = port->card;
-
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+ struct isi_board *card = port->card;
+
if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle"))
return;
-
+
/* tell the card that this port is ready to accept more data */
card->port_status |= (1 << port->channel);
outw(card->port_status, card->base + 0x02);
}
/* stop et all */
-static void isicom_stop(struct tty_struct * tty)
+static void isicom_stop(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
if (isicom_paranoia_check(port, tty->name, "isicom_stop"))
return;
-
+
/* this tells the transmitter not to consider this port for
data output to the card. */
port->status &= ~ISI_TXOK;
}
/* start et all */
-static void isicom_start(struct tty_struct * tty)
+static void isicom_start(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
-
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+
if (isicom_paranoia_check(port, tty->name, "isicom_start"))
return;
-
+
/* this tells the transmitter to consider this port for
data output to the card. */
port->status |= ISI_TXOK;
}
/* hangup et all */
-static void do_isicom_hangup(void * data)
+static void do_isicom_hangup(void *data)
{
- struct isi_port * port = (struct isi_port *) data;
- struct tty_struct * tty;
-
+ struct isi_port *port = (struct isi_port *) data;
+ struct tty_struct *tty;
+
tty = port->tty;
if (tty)
tty_hangup(tty);
}
-static void isicom_hangup(struct tty_struct * tty)
+static void isicom_hangup(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
-
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+
if (isicom_paranoia_check(port, tty->name, "isicom_hangup"))
return;
-
+
isicom_shutdown_port(port);
port->count = 0;
port->flags &= ~ASYNC_NORMAL_ACTIVE;
}
/* flush_buffer et all */
-static void isicom_flush_buffer(struct tty_struct * tty)
+static void isicom_flush_buffer(struct tty_struct *tty)
{
- struct isi_port * port = (struct isi_port *) tty->driver_data;
- struct isi_board * card = port->card;
+ struct isi_port *port = (struct isi_port *) tty->driver_data;
+ struct isi_board *card = port->card;
unsigned long flags;
-
+
if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer"))
return;
-
+
spin_lock_irqsave(&card->card_lock, flags);
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
spin_unlock_irqrestore(&card->card_lock, flags);
-
+
wake_up_interruptible(&tty->write_wait);
tty_wakeup(tty);
}
static void unregister_ioregion(void)
{
int count;
- for (count=0; count < BOARD_COUNT; count++ )
+ for (count=0; count < BOARD_COUNT; count++ )
if (isi_card[count].base) {
release_region(isi_card[count].base,16);
-#ifdef ISICOM_DEBUG
+#ifdef ISICOM_DEBUG
printk(KERN_DEBUG "ISICOM: I/O Region 0x%x-0x%x released for Card%d.\n",isi_card[count].base,isi_card[count].base+15,count+1);
-#endif
+#endif
}
}
static struct tty_operations isicom_ops = {
- .open = isicom_open,
- .close = isicom_close,
- .write = isicom_write,
- .put_char = isicom_put_char,
- .flush_chars = isicom_flush_chars,
- .write_room = isicom_write_room,
+ .open = isicom_open,
+ .close = isicom_close,
+ .write = isicom_write,
+ .put_char = isicom_put_char,
+ .flush_chars = isicom_flush_chars,
+ .write_room = isicom_write_room,
.chars_in_buffer = isicom_chars_in_buffer,
- .ioctl = isicom_ioctl,
- .set_termios = isicom_set_termios,
- .throttle = isicom_throttle,
- .unthrottle = isicom_unthrottle,
- .stop = isicom_stop,
- .start = isicom_start,
- .hangup = isicom_hangup,
- .flush_buffer = isicom_flush_buffer,
- .tiocmget = isicom_tiocmget,
- .tiocmset = isicom_tiocmset,
+ .ioctl = isicom_ioctl,
+ .set_termios = isicom_set_termios,
+ .throttle = isicom_throttle,
+ .unthrottle = isicom_unthrottle,
+ .stop = isicom_stop,
+ .start = isicom_start,
+ .hangup = isicom_hangup,
+ .flush_buffer = isicom_flush_buffer,
+ .tiocmget = isicom_tiocmget,
+ .tiocmset = isicom_tiocmset,
};
static int __devinit register_drivers(void)
isicom_normal->type = TTY_DRIVER_TYPE_SERIAL;
isicom_normal->subtype = SERIAL_TYPE_NORMAL;
isicom_normal->init_termios = tty_std_termios;
- isicom_normal->init_termios.c_cflag =
+ isicom_normal->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL |CLOCAL;
isicom_normal->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(isicom_normal, &isicom_ops);
-
+
if ((error=tty_register_driver(isicom_normal))!=0) {
printk(KERN_DEBUG "ISICOM: Couldn't register the dialin driver, error=%d\n",
error);
for (count=0; count < BOARD_COUNT; count++ ) {
if (isi_card[count].base) {
- irqflags = (isi_card[count].isa == YES) ?
- SA_INTERRUPT :
+ irqflags = (isi_card[count].isa == YES) ?
+ SA_INTERRUPT :
(SA_INTERRUPT | SA_SHIRQ);
- if (request_irq(isi_card[count].irq,
- isicom_interrupt,
- irqflags,
+ if (request_irq(isi_card[count].irq,
+ isicom_interrupt,
+ irqflags,
ISICOM_NAME, &isi_card[count])) {
printk(KERN_WARNING "ISICOM: Could not"
}
else
done++;
- }
+ }
}
return done;
}
static int __devinit isicom_init(void)
{
int card, channel, base;
- struct isi_port * port;
+ struct isi_port *port;
unsigned long page;
-
- if (!tmp_buf) {
+
+ if (!tmp_buf) {
page = get_zeroed_page(GFP_KERNEL);
- if (!page) {
-#ifdef ISICOM_DEBUG
- printk(KERN_DEBUG "ISICOM: Couldn't allocate page for tmp_buf.\n");
+ if (!page) {
+#ifdef ISICOM_DEBUG
+ printk(KERN_DEBUG "ISICOM: Couldn't allocate page for tmp_buf.\n");
#else
printk(KERN_ERR "ISICOM: Not enough memory...\n");
-#endif
- return 0;
- }
- tmp_buf = (unsigned char *) page;
+#endif
+ return 0;
+ }
+ tmp_buf = (unsigned char *) page;
}
-
- if (!register_ioregion())
+
+ if (!register_ioregion())
{
printk(KERN_ERR "ISICOM: All required I/O space found busy.\n");
free_page((unsigned long)tmp_buf);
return 0;
}
- if (register_drivers())
+ if (register_drivers())
{
unregister_ioregion();
free_page((unsigned long)tmp_buf);
return 0;
}
- if (!register_isr())
+ if (!register_isr())
{
unregister_drivers();
/* ioports already uregistered in register_isr */
free_page((unsigned long)tmp_buf);
- return 0;
+ return 0;
}
-
+
memset(isi_ports, 0, sizeof(isi_ports));
for (card = 0; card < BOARD_COUNT; card++) {
port = &isi_ports[card * 16];
port->magic = ISICOM_MAGIC;
port->card = &isi_card[card];
port->channel = channel;
- port->close_delay = 50 * HZ/100;
- port->closing_wait = 3000 * HZ/100;
- INIT_WORK(&port->hangup_tq, do_isicom_hangup, port);
- INIT_WORK(&port->bh_tqueue, isicom_bottomhalf, port);
- port->status = 0;
- init_waitqueue_head(&port->open_wait);
+ port->close_delay = 50 * HZ/100;
+ port->closing_wait = 3000 * HZ/100;
+ INIT_WORK(&port->hangup_tq, do_isicom_hangup, port);
+ INIT_WORK(&port->bh_tqueue, isicom_bottomhalf, port);
+ port->status = 0;
+ init_waitqueue_head(&port->open_wait);
init_waitqueue_head(&port->close_wait);
/* . . . */
- }
- }
-
- return 1;
+ }
+ }
+
+ return 1;
}
/*
* Insmod can set static symbols so keep these static
*/
-
+
static int io[4];
static int irq[4];
int retval, card, idx, count;
unsigned char pciirq;
unsigned int ioaddr;
-
+
card = 0;
- for(idx=0; idx < BOARD_COUNT; idx++) {
+ for (idx=0; idx < BOARD_COUNT; idx++) {
if (io[idx]) {
isi_card[idx].base=io[idx];
isi_card[idx].irq=irq[idx];
isi_card[idx].irq = 0;
}
}
-
+
for (idx=0 ;idx < card; idx++) {
if (!((isi_card[idx].irq==2)||(isi_card[idx].irq==3)||
- (isi_card[idx].irq==4)||(isi_card[idx].irq==5)||
- (isi_card[idx].irq==7)||(isi_card[idx].irq==10)||
- (isi_card[idx].irq==11)||(isi_card[idx].irq==12)||
- (isi_card[idx].irq==15))) {
-
+ (isi_card[idx].irq==4)||(isi_card[idx].irq==5)||
+ (isi_card[idx].irq==7)||(isi_card[idx].irq==10)||
+ (isi_card[idx].irq==11)||(isi_card[idx].irq==12)||
+ (isi_card[idx].irq==15))) {
+
if (isi_card[idx].base) {
printk(KERN_ERR "ISICOM: Irq %d unsupported. Disabling Card%d...\n",
isi_card[idx].irq, idx+1);
isi_card[idx].base=0;
card--;
- }
+ }
}
- }
-
+ }
+
if (card < BOARD_COUNT) {
for (idx=0; idx < DEVID_COUNT; idx++) {
dev = NULL;
break;
if (card >= BOARD_COUNT)
break;
-
+
if (pci_enable_device(dev))
break;
/* found a PCI ISI card! */
- ioaddr = pci_resource_start (dev, 3); /* i.e at offset 0x1c in the
- * PCI configuration register
- * space.
- */
+ ioaddr = pci_resource_start (dev, 3);
+ /* i.e at offset 0x1c in the
+ * PCI configuration register
+ * space.
+ */
pciirq = dev->irq;
printk(KERN_INFO "ISI PCI Card(Device ID 0x%x)\n", isicom_pci_tbl[idx].device);
/*
* allot the first empty slot in the array
- */
- for (count=0; count < BOARD_COUNT; count++) {
+ */
+ for (count=0; count < BOARD_COUNT; count++) {
if (isi_card[count].base == 0) {
isi_card[count].base = ioaddr;
isi_card[count].irq = pciirq;
break;
}
}
- }
+ }
if (card >= BOARD_COUNT) break;
}
}
-
+
if (!(isi_card[0].base || isi_card[1].base || isi_card[2].base || isi_card[3].base)) {
- printk(KERN_ERR "ISICOM: No valid card configuration. Driver cannot be initialized...\n");
+ printk(KERN_ERR "ISICOM: No valid card configuration. Driver cannot be initialized...\n");
return -EIO;
- }
+ }
retval = misc_register(&isiloader_device);
if (retval < 0) {
printk(KERN_ERR "ISICOM: Unable to register firmware loader driver.\n");
return retval;
}
-
+
if (!isicom_init()) {
- if (misc_deregister(&isiloader_device))
+ if (misc_deregister(&isiloader_device))
printk(KERN_ERR "ISICOM: Unable to unregister Firmware Loader driver\n");
return -EIO;
}
-
+
init_timer(&tx);
tx.expires = jiffies + 1;
tx.data = 0;
tx.function = isicom_tx;
re_schedule = 1;
add_timer(&tx);
-
+
return 0;
}
msleep(1000);
unregister_isr();
unregister_drivers();
- unregister_ioregion();
- if(tmp_buf)
+ unregister_ioregion();
+ if (tmp_buf)
free_page((unsigned long)tmp_buf);
if (misc_deregister(&isiloader_device))
printk(KERN_ERR "ISICOM: Unable to unregister Firmware Loader driver\n");
projects / linux-2.6 / commitdiff