rocket: use tty_port

Switch the rocketport to use the new tty_port structure

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 61 insertions, 64 deletions

diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 743dc80a9325..bc35b900f9c6 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -434,15 +434,15 @@ static void rp_do_transmit(struct r_port *info)
 #endif
         if (!info)
                 return;
-        if (!info->tty) {
+        if (!info->port.tty) {
                 printk(KERN_WARNING "rp: WARNING %s called with "
-                                "info->tty==NULL\n", __func__);
+                                "info->port.tty==NULL\n", __func__);
                 clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
                 return;
         }
 
         spin_lock_irqsave(&info->slock, flags);
-        tty = info->tty;
+        tty = info->port.tty;
         info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
 
         /*  Loop sending data to FIFO until done or FIFO full */
@@ -502,13 +502,13 @@ static void rp_handle_port(struct r_port *info)
                                 "info->flags & NOT_INIT\n");
                 return;
         }
-        if (!info->tty) {
+        if (!info->port.tty) {
                 printk(KERN_WARNING "rp: WARNING: rp_handle_port called with "
-                                "info->tty==NULL\n");
+                                "info->port.tty==NULL\n");
                 return;
         }
         cp = &info->channel;
-        tty = info->tty;
+        tty = info->port.tty;
 
         IntMask = sGetChanIntID(cp) & info->intmask;
 #ifdef ROCKET_DEBUG_INTR
@@ -530,7 +530,7 @@ static void rp_handle_port(struct r_port *info)
                         tty_hangup(tty);
                 }
                 info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0;
-                wake_up_interruptible(&info->open_wait);
+                wake_up_interruptible(&info->port.open_wait);
         }
 #ifdef ROCKET_DEBUG_INTR
         if (IntMask & DELTA_CTS) {      /* CTS change */
@@ -650,7 +650,7 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
         info->chan = chan;
         info->closing_wait = 3000;
         info->close_delay = 50;
-        init_waitqueue_head(&info->open_wait);
+        init_waitqueue_head(&info->port.open_wait);
         init_completion(&info->close_wait);
         info->flags &= ~ROCKET_MODE_MASK;
         switch (pc104[board][line]) {
@@ -717,7 +717,7 @@ static void configure_r_port(struct r_port *info,
         unsigned rocketMode;
         int bits, baud, divisor;
         CHANNEL_t *cp;
-        struct ktermios *t = info->tty->termios;
+        struct ktermios *t = info->port.tty->termios;
 
         cp = &info->channel;
         cflag = t->c_cflag;
@@ -750,7 +750,7 @@ static void configure_r_port(struct r_port *info,
         }
 
         /* baud rate */
-        baud = tty_get_baud_rate(info->tty);
+        baud = tty_get_baud_rate(info->port.tty);
         if (!baud)
                 baud = 9600;
         divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1;
@@ -768,7 +768,7 @@ static void configure_r_port(struct r_port *info,
         sSetBaud(cp, divisor);
 
         /* FIXME: Should really back compute a baud rate from the divisor */
-        tty_encode_baud_rate(info->tty, baud, baud);
+        tty_encode_baud_rate(info->port.tty, baud, baud);
 
         if (cflag & CRTSCTS) {
                 info->intmask |= DELTA_CTS;
@@ -793,15 +793,15 @@ static void configure_r_port(struct r_port *info,
          * Handle software flow control in the board
          */
 #ifdef ROCKET_SOFT_FLOW
-        if (I_IXON(info->tty)) {
+        if (I_IXON(info->port.tty)) {
                 sEnTxSoftFlowCtl(cp);
-                if (I_IXANY(info->tty)) {
+                if (I_IXANY(info->port.tty)) {
                         sEnIXANY(cp);
                 } else {
                         sDisIXANY(cp);
                 }
-                sSetTxXONChar(cp, START_CHAR(info->tty));
-                sSetTxXOFFChar(cp, STOP_CHAR(info->tty));
+                sSetTxXONChar(cp, START_CHAR(info->port.tty));
+                sSetTxXOFFChar(cp, STOP_CHAR(info->port.tty));
         } else {
                 sDisTxSoftFlowCtl(cp);
                 sDisIXANY(cp);
@@ -813,24 +813,24 @@ static void configure_r_port(struct r_port *info,
          * Set up ignore/read mask words
          */
         info->read_status_mask = STMRCVROVRH | 0xFF;
-        if (I_INPCK(info->tty))
+        if (I_INPCK(info->port.tty))
                 info->read_status_mask |= STMFRAMEH | STMPARITYH;
-        if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+        if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
                 info->read_status_mask |= STMBREAKH;
 
         /*
          * Characters to ignore
          */
         info->ignore_status_mask = 0;
-        if (I_IGNPAR(info->tty))
+        if (I_IGNPAR(info->port.tty))
                 info->ignore_status_mask |= STMFRAMEH | STMPARITYH;
-        if (I_IGNBRK(info->tty)) {
+        if (I_IGNBRK(info->port.tty)) {
                 info->ignore_status_mask |= STMBREAKH;
                 /*
                  * If we're ignoring parity and break indicators,
                  * ignore overruns too.  (For real raw support).
                  */
-                if (I_IGNPAR(info->tty))
+                if (I_IGNPAR(info->port.tty))
                         info->ignore_status_mask |= STMRCVROVRH;
         }
 
@@ -863,7 +863,7 @@ static void configure_r_port(struct r_port *info,
         }
 }
 
-/*  info->count is considered critical, protected by spinlocks.  */
+/*  info->port.count is considered critical, protected by spinlocks.  */
 static int block_til_ready(struct tty_struct *tty, struct file *filp,
                            struct r_port *info)
 {
@@ -897,13 +897,13 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
         /*
          * Block waiting for the carrier detect and the line to become free.  While we are in
-         * this loop, info->count is dropped by one, so that rp_close() knows when to free things.  
+         * this loop, info->port.count is dropped by one, so that rp_close() knows when to free things.
          * We restore it upon exit, either normal or abnormal.
          */
         retval = 0;
-        add_wait_queue(&info->open_wait, &wait);
+        add_wait_queue(&info->port.open_wait, &wait);
 #ifdef ROCKET_DEBUG_OPEN
-        printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->count);
+        printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->port.count);
 #endif
         spin_lock_irqsave(&info->slock, flags);
 
@@ -912,10 +912,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 #else
         if (!tty_hung_up_p(filp)) {
                 extra_count = 1;
-                info->count--;
+                info->port.count--;
         }
 #endif
-        info->blocked_open++;
+        info->port.blocked_open++;
 
         spin_unlock_irqrestore(&info->slock, flags);
 
@@ -940,24 +940,24 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
                 }
 #ifdef ROCKET_DEBUG_OPEN
                 printk(KERN_INFO "block_til_ready blocking: ttyR%d, count = %d, flags=0x%0x\n",
-                     info->line, info->count, info->flags);
+                     info->line, info->port.count, info->flags);
 #endif
                 schedule();     /*  Don't hold spinlock here, will hang PC */
         }
         __set_current_state(TASK_RUNNING);
-        remove_wait_queue(&info->open_wait, &wait);
+        remove_wait_queue(&info->port.open_wait, &wait);
 
         spin_lock_irqsave(&info->slock, flags);
 
         if (extra_count)
-                info->count++;
-        info->blocked_open--;
+                info->port.count++;
+        info->port.blocked_open--;
 
         spin_unlock_irqrestore(&info->slock, flags);
 
 #ifdef ROCKET_DEBUG_OPEN
         printk(KERN_INFO "block_til_ready after blocking: ttyR%d, count = %d\n",
-               info->line, info->count);
+               info->line, info->port.count);
 #endif
         if (retval)
                 return retval;
@@ -1001,9 +1001,9 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
                 info->xmit_buf = (unsigned char *) page;
 
         tty->driver_data = info;
-        info->tty = tty;
+        info->port.tty = tty;
 
-        if (info->count++ == 0) {
+        if (info->port.count++ == 0) {
                 atomic_inc(&rp_num_ports_open);
 
 #ifdef ROCKET_DEBUG_OPEN
@@ -1012,7 +1012,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 #endif
         }
 #ifdef ROCKET_DEBUG_OPEN
-        printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->count);
+        printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
 #endif
 
         /*
@@ -1048,13 +1048,13 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
                  * Set up the tty->alt_speed kludge
                  */
                 if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
-                        info->tty->alt_speed = 57600;
+                        info->port.tty->alt_speed = 57600;
                 if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
-                        info->tty->alt_speed = 115200;
+                        info->port.tty->alt_speed = 115200;
                 if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
-                        info->tty->alt_speed = 230400;
+                        info->port.tty->alt_speed = 230400;
                 if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
-                        info->tty->alt_speed = 460800;
+                        info->port.tty->alt_speed = 460800;
 
                 configure_r_port(info, NULL);
                 if (tty->termios->c_cflag & CBAUD) {
@@ -1076,7 +1076,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 }
 
 /*
- *  Exception handler that closes a serial port. info->count is considered critical. 
+ *  Exception handler that closes a serial port. info->port.count is considered critical.
  */
 static void rp_close(struct tty_struct *tty, struct file *filp)
 {
@@ -1089,14 +1089,14 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
                 return;
 
 #ifdef ROCKET_DEBUG_OPEN
-        printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->count);
+        printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->port.count);
 #endif
 
         if (tty_hung_up_p(filp))
                 return;
         spin_lock_irqsave(&info->slock, flags);
 
-        if ((tty->count == 1) && (info->count != 1)) {
+        if ((tty->count == 1) && (info->port.count != 1)) {
                 /*
                  * Uh, oh.  tty->count is 1, which means that the tty
                  * structure will be freed.  Info->count should always
@@ -1105,15 +1105,15 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
                  * serial port won't be shutdown.
                  */
                 printk(KERN_WARNING "rp_close: bad serial port count; "
-                        "tty->count is 1, info->count is %d\n", info->count);
-                info->count = 1;
+                        "tty->count is 1, info->port.count is %d\n", info->port.count);
+                info->port.count = 1;
         }
-        if (--info->count < 0) {
+        if (--info->port.count < 0) {
                 printk(KERN_WARNING "rp_close: bad serial port count for "
-                                "ttyR%d: %d\n", info->line, info->count);
-                info->count = 0;
+                                "ttyR%d: %d\n", info->line, info->port.count);
+                info->port.count = 0;
         }
-        if (info->count) {
+        if (info->port.count) {
                 spin_unlock_irqrestore(&info->slock, flags);
                 return;
         }
@@ -1167,11 +1167,11 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
 
         clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
 
-        if (info->blocked_open) {
+        if (info->port.blocked_open) {
                 if (info->close_delay) {
                         msleep_interruptible(jiffies_to_msecs(info->close_delay));
                 }
-                wake_up_interruptible(&info->open_wait);
+                wake_up_interruptible(&info->port.open_wait);
         } else {
                 if (info->xmit_buf) {
                         free_page((unsigned long) info->xmit_buf);
@@ -1357,13 +1357,13 @@ static int set_config(struct r_port *info, struct rocket_config __user *new_info
         info->closing_wait = new_serial.closing_wait;
 
         if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
-                info->tty->alt_speed = 57600;
+                info->port.tty->alt_speed = 57600;
         if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
-                info->tty->alt_speed = 115200;
+                info->port.tty->alt_speed = 115200;
         if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
-                info->tty->alt_speed = 230400;
+                info->port.tty->alt_speed = 230400;
         if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
-                info->tty->alt_speed = 460800;
+                info->port.tty->alt_speed = 460800;
 
         configure_r_port(info, NULL);
         return 0;
@@ -1636,13 +1636,13 @@ static void rp_hangup(struct tty_struct *tty)
         rp_flush_buffer(tty);
         if (info->flags & ROCKET_CLOSING)
                 return;
-        if (info->count) 
+        if (info->port.count)
                 atomic_dec(&rp_num_ports_open);
         clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
 
-        info->count = 0;
+        info->port.count = 0;
         info->flags &= ~ROCKET_NORMAL_ACTIVE;
-        info->tty = NULL;
+        info->port.tty = NULL;
 
         cp = &info->channel;
         sDisRxFIFO(cp);
@@ -1653,7 +1653,7 @@ static void rp_hangup(struct tty_struct *tty)
         sClrTxXOFF(cp);
         info->flags &= ~ROCKET_INITIALIZED;
 
-        wake_up_interruptible(&info->open_wait);
+        wake_up_interruptible(&info->port.open_wait);
 }
 
 /*
@@ -1762,7 +1762,7 @@ static int rp_write(struct tty_struct *tty,
 
         /*  Write remaining data into the port's xmit_buf */
         while (1) {
-                if (!info->tty)         /* Seemingly obligatory check... */
+                if (!info->port.tty)            /* Seemingly obligatory check... */
                         goto end;
                 c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1);
                 c = min(c, XMIT_BUF_SIZE - info->xmit_head);
diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h
index 143cc432fdb2..3affc48f6a57 100644
--- a/drivers/char/rocket_int.h
+++ b/drivers/char/rocket_int.h
@@ -1125,11 +1125,9 @@ Warnings: This function writes the data byte without checking to see if
 
 struct r_port {
         int magic;
+        struct tty_port port;
         int line;
-        int flags;
-        int count;
-        int blocked_open;
-        struct tty_struct *tty;
+        int flags;              /* Don't yet match the ASY_ flags!! */
         unsigned int board:3;
         unsigned int aiop:2;
         unsigned int chan:3;
@@ -1148,8 +1146,7 @@ struct r_port {
         int read_status_mask;
         int cps;
 
-        wait_queue_head_t open_wait;
-        struct completion close_wait;
+        struct completion close_wait;   /* Not yet matching the core */
         spinlock_t slock;
         struct mutex write_mtx;
 };