mirror of https://gitee.com/openkylin/linux.git
[PATCH] char/isicom: Other little changes
Move some code from one place to another. Get rid of ugly ifdefs in code in next p[patches, so here create functions and macros to enable it. Rename some functions and align some code to 80 chars. Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jiri Slaby
Linus Torvalds
parent
8070e35c65
commit
aaa246ea78
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@ -135,6 +135,17 @@
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#include <linux/isicom.h>
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#define InterruptTheCard(base) outw(0, (base) + 0xc)
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#define ClearInterrupt(base) inw((base) + 0x0a)
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#ifdef DEBUG
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#define pr_dbg(str...) printk(KERN_DEBUG "ISICOM: " str)
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#define isicom_paranoia_check(a, b, c) __isicom_paranoia_check((a), (b), (c))
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#else
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#define pr_dbg(str...) do { } while (0)
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#define isicom_paranoia_check(a, b, c) 0
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#endif
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static struct pci_device_id isicom_pci_tbl[] = {
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{ VENDOR_ID, 0x2028, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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{ VENDOR_ID, 0x2051, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
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@ -161,7 +172,6 @@ static void isicom_tx(unsigned long _data);
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static void isicom_start(struct tty_struct *tty);
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static unsigned char *tmp_buf;
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static DECLARE_MUTEX(tmp_buf_sem);
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/* baud index mappings from linux defns to isi */
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@ -599,23 +609,20 @@ static int ISILoad_ioctl(struct inode *inode, struct file *filp,
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*
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*/
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static inline int isicom_paranoia_check(struct isi_port const *port, char *name,
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const char *routine)
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static inline int __isicom_paranoia_check(struct isi_port const *port,
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char *name, const char *routine)
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{
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#ifdef ISICOM_DEBUG
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static const char *badmagic =
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KERN_WARNING "ISICOM: Warning: bad isicom magic for dev %s in %s.\n";
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static const char *badport =
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KERN_WARNING "ISICOM: Warning: NULL isicom port for dev %s in %s.\n";
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if (!port) {
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printk(badport, name, routine);
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printk(KERN_WARNING "ISICOM: Warning: bad isicom magic for "
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"dev %s in %s.\n", name, routine);
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return 1;
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}
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if (port->magic != ISICOM_MAGIC) {
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printk(badmagic, name, routine);
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printk(KERN_WARNING "ISICOM: Warning: NULL isicom port for "
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"dev %s in %s.\n", name, routine);
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return 1;
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}
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#endif
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return 0;
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}
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@ -674,12 +681,10 @@ static void isicom_tx(unsigned long _data)
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unlock_card(&isi_card[card]);
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continue;
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}
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: txing %d bytes, port%d.\n",
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txcount, port->channel+1);
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#endif
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outw((port->channel << isi_card[card].shift_count) | txcount
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, base);
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pr_dbg("txing %d bytes, port%d.\n", txcount,
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port->channel + 1);
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outw((port->channel << isi_card[card].shift_count) | txcount,
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base);
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residue = NO;
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wrd = 0;
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while (1) {
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@ -725,8 +730,11 @@ static void isicom_tx(unsigned long _data)
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/* schedule another tx for hopefully in about 10ms */
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sched_again:
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if (!re_schedule)
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return;
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if (!re_schedule) {
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re_schedule = 2;
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return;
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}
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init_timer(&tx);
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tx.expires = jiffies + HZ/100;
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tx.data = 0;
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@ -830,9 +838,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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if (port->status & ISI_DCD) {
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if (!(header & ISI_DCD)) {
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/* Carrier has been lost */
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: interrupt: DCD->low.\n");
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#endif
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pr_dbg("interrupt: DCD->low.\n");
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port->status &= ~ISI_DCD;
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schedule_work(&port->hangup_tq);
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}
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@ -840,9 +846,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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else {
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if (header & ISI_DCD) {
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/* Carrier has been detected */
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: interrupt: DCD->high.\n");
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#endif
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pr_dbg("interrupt: DCD->high.\n");
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port->status |= ISI_DCD;
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wake_up_interruptible(&port->open_wait);
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}
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@ -899,21 +903,18 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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break;
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case 2: /* Statistics */
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printk(KERN_DEBUG "ISICOM: isicom_interrupt: stats!!!.\n");
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pr_dbg("isicom_interrupt: stats!!!.\n");
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break;
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default:
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printk(KERN_WARNING "ISICOM: Intr: Unknown code in status packet.\n");
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pr_dbg("Intr: Unknown code in status packet.\n");
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break;
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}
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}
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else { /* Data Packet */
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count = tty_prepare_flip_string(tty, &rp, byte_count & ~1);
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: Intr: Can rx %d of %d bytes.\n",
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count, byte_count);
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#endif
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pr_dbg("Intr: Can rx %d of %d bytes.\n", count, byte_count);
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word_count = count >> 1;
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insw(base, rp, word_count);
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byte_count -= (word_count << 1);
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@ -922,8 +923,8 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id, struct pt_regs *regs)
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byte_count -= 2;
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}
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if (byte_count > 0) {
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printk(KERN_DEBUG "ISICOM: Intr(0x%lx:%d): Flip buffer overflow! dropping bytes...\n",
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base, channel+1);
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pr_dbg("Intr(0x%lx:%d): Flip buffer overflow! dropping "
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"bytes...\n", base, channel + 1);
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while(byte_count > 0) { /* drain out unread xtra data */
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inw(base);
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byte_count -= 2;
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@ -1116,9 +1117,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, struct isi
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/* block if port is in the process of being closed */
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if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: block_til_ready: close in progress.\n");
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#endif
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pr_dbg("block_til_ready: close in progress.\n");
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interruptible_sleep_on(&port->close_wait);
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if (port->flags & ASYNC_HUP_NOTIFY)
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return -EAGAIN;
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@ -1129,9 +1128,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, struct isi
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/* if non-blocking mode is set ... */
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if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) {
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: block_til_ready: non-block mode.\n");
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#endif
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pr_dbg("block_til_ready: non-block mode.\n");
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port->flags |= ASYNC_NORMAL_ACTIVE;
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return 0;
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}
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@ -1271,7 +1268,7 @@ static void isicom_shutdown_port(struct isi_port *port)
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set_bit(TTY_IO_ERROR, &tty->flags);
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if (--card->count < 0) {
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printk(KERN_DEBUG "ISICOM: isicom_shutdown_port: bad board(0x%lx) count %d.\n",
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pr_dbg("isicom_shutdown_port: bad board(0x%lx) count %d.\n",
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card->base, card->count);
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card->count = 0;
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}
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@ -1294,9 +1291,7 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
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if (isicom_paranoia_check(port, tty->name, "isicom_close"))
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return;
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: Close start!!!.\n");
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#endif
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pr_dbg("Close start!!!.\n");
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spin_lock_irqsave(&card->card_lock, flags);
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if (tty_hung_up_p(filp)) {
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@ -1347,9 +1342,7 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
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if (port->blocked_open) {
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spin_unlock_irqrestore(&card->card_lock, flags);
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if (port->close_delay) {
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#ifdef ISICOM_DEBUG
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printk(KERN_DEBUG "ISICOM: scheduling until time out.\n");
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#endif
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pr_dbg("scheduling until time out.\n");
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msleep_interruptible(jiffies_to_msecs(port->close_delay));
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}
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spin_lock_irqsave(&card->card_lock, flags);
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@ -1786,42 +1779,44 @@ static struct tty_operations isicom_ops = {
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.tiocmset = isicom_tiocmset,
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};
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static int __devinit register_drivers(void)
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static int __devinit isicom_register_tty_driver(void)
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{
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int error;
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int error = -ENOMEM;
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/* tty driver structure initialization */
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isicom_normal = alloc_tty_driver(PORT_COUNT);
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if (!isicom_normal)
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return -ENOMEM;
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goto end;
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isicom_normal->owner = THIS_MODULE;
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isicom_normal->name = "ttyM";
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isicom_normal->devfs_name = "isicom/";
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isicom_normal->major = ISICOM_NMAJOR;
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isicom_normal->minor_start = 0;
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isicom_normal->type = TTY_DRIVER_TYPE_SERIAL;
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isicom_normal->subtype = SERIAL_TYPE_NORMAL;
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isicom_normal->init_termios = tty_std_termios;
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isicom_normal->init_termios.c_cflag =
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B9600 | CS8 | CREAD | HUPCL |CLOCAL;
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isicom_normal->flags = TTY_DRIVER_REAL_RAW;
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isicom_normal->owner = THIS_MODULE;
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isicom_normal->name = "ttyM";
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isicom_normal->devfs_name = "isicom/";
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isicom_normal->major = ISICOM_NMAJOR;
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isicom_normal->minor_start = 0;
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isicom_normal->type = TTY_DRIVER_TYPE_SERIAL;
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isicom_normal->subtype = SERIAL_TYPE_NORMAL;
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isicom_normal->init_termios = tty_std_termios;
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isicom_normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL |
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CLOCAL;
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isicom_normal->flags = TTY_DRIVER_REAL_RAW;
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tty_set_operations(isicom_normal, &isicom_ops);
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if ((error=tty_register_driver(isicom_normal))!=0) {
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printk(KERN_DEBUG "ISICOM: Couldn't register the dialin driver, error=%d\n",
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if ((error = tty_register_driver(isicom_normal))) {
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pr_dbg("Couldn't register the dialin driver, error=%d\n",
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error);
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put_tty_driver(isicom_normal);
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return error;
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}
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return 0;
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end:
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return error;
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}
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static void unregister_drivers(void)
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static void isicom_unregister_tty_driver(void)
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{
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int error = tty_unregister_driver(isicom_normal);
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if (error)
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printk(KERN_DEBUG "ISICOM: couldn't unregister normal driver error=%d.\n",error);
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int error;
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if ((error = tty_unregister_driver(isicom_normal)))
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pr_dbg("couldn't unregister normal driver, error=%d.\n", error);
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put_tty_driver(isicom_normal);
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}
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@ -1891,7 +1886,7 @@ static int __devinit isicom_init(void)
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free_page((unsigned long)tmp_buf);
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return 0;
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}
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if (register_drivers())
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if (isicom_register_tty_driver())
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{
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unregister_ioregion();
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free_page((unsigned long)tmp_buf);
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@ -1899,7 +1894,7 @@ static int __devinit isicom_init(void)
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}
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if (!register_isr())
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{
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unregister_drivers();
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isicom_unregister_tty_driver();
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/* ioports already uregistered in register_isr */
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free_page((unsigned long)tmp_buf);
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return 0;
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@ -1936,14 +1931,6 @@ static int __devinit isicom_init(void)
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static int io[4];
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static int irq[4];
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MODULE_AUTHOR("MultiTech");
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MODULE_DESCRIPTION("Driver for the ISI series of cards by MultiTech");
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MODULE_LICENSE("GPL");
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module_param_array(io, int, NULL, 0);
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MODULE_PARM_DESC(io, "I/O ports for the cards");
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module_param_array(irq, int, NULL, 0);
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MODULE_PARM_DESC(irq, "Interrupts for the cards");
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static int __devinit isicom_setup(void)
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{
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struct pci_dev *dev = NULL;
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@ -2047,11 +2034,15 @@ static int __devinit isicom_setup(void)
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static void __exit isicom_exit(void)
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{
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unsigned int index = 0;
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re_schedule = 0;
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/* FIXME */
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msleep(1000);
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while (re_schedule != 2 && index++ < 100)
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msleep(10);
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unregister_isr();
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unregister_drivers();
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isicom_unregister_tty_driver();
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unregister_ioregion();
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if (tmp_buf)
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free_page((unsigned long)tmp_buf);
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@ -2061,3 +2052,11 @@ static void __exit isicom_exit(void)
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module_init(isicom_setup);
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module_exit(isicom_exit);
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MODULE_AUTHOR("MultiTech");
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MODULE_DESCRIPTION("Driver for the ISI series of cards by MultiTech");
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MODULE_LICENSE("GPL");
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module_param_array(io, int, NULL, 0);
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MODULE_PARM_DESC(io, "I/O ports for the cards");
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module_param_array(irq, int, NULL, 0);
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MODULE_PARM_DESC(irq, "Interrupts for the cards");
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@ -98,9 +98,6 @@ typedef struct {
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#define ISICOM_INITIATE_XONXOFF 0x04
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#define ISICOM_RESPOND_XONXOFF 0x08
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#define InterruptTheCard(base) (outw(0,(base)+0xc))
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#define ClearInterrupt(base) (inw((base)+0x0a))
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#define BOARD(line) (((line) >> 4) & 0x3)
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/* isi kill queue bitmap */
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