Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / drivers / char / cyclades.c

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 1cf94f1..cc7acf8 100644 (file)
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -281,7 +281,7 @@ static char rcsid[] =
  * make sure "cyc" appears in all kernel messages; all soft interrupts
  * handled by same routine; recognize out-of-band reception; comment
  * out some diagnostic messages; leave RTS/CTS flow control to hardware;
- * fix race condition in -Z buffer management; only -Y needs to explictly
+ * fix race condition in -Z buffer management; only -Y needs to explicitly
  * flush chars; tidy up some startup messages;
  *
  * Revision 1.36.4.18  1996/07/25 18:57:31  bentson
@@ -641,6 +641,7 @@ static char rcsid[] =
 #include <linux/timer.h>
 #include <linux/interrupt.h>
 #include <linux/tty.h>
+#include <linux/tty_flip.h>
 #include <linux/serial.h>
 #include <linux/major.h>
 #include <linux/string.h>
@@ -723,7 +724,7 @@ static unsigned int cy_isa_addresses[] = {
         0xDE000,
         0,0,0,0,0,0,0,0
 };
-#define NR_ISA_ADDRS (sizeof(cy_isa_addresses)/sizeof(unsigned char*))
+#define NR_ISA_ADDRS ARRAY_SIZE(cy_isa_addresses)
 
 #ifdef MODULE
 static long maddr[NR_CARDS] = { 0, };
@@ -865,7 +866,7 @@ static void cyz_poll(unsigned long);
 static long cyz_polling_cycle = CZ_DEF_POLL;
 
 static int cyz_timeron = 0;
-static struct timer_list cyz_timerlist = TIMER_INITIALIZER(cyz_poll, 0, 0);
+static DEFINE_TIMER(cyz_timerlist, cyz_poll, 0, 0);
 
 #else /* CONFIG_CYZ_INTR */
 static void cyz_rx_restart(unsigned long);
@@ -1086,7 +1087,7 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
   int had_work;
   int mdm_change;
   int mdm_status;
-
+  int len;
     if((cinfo = (struct cyclades_card *)dev_id) == 0){
 #ifdef CY_DEBUG_INTERRUPTS
        printk("cyy_interrupt: spurious interrupt %d\n\r", irq);
@@ -1163,63 +1164,43 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                                info->icount.rx++;
                                 continue;
                             }
-                            if (tty->flip.count < TTY_FLIPBUF_SIZE){
-                                tty->flip.count++;
+                            if (tty_buffer_request_room(tty, 1)) {
                                 if (data & info->read_status_mask){
                                     if(data & CyBREAK){
-                                        *tty->flip.flag_buf_ptr++ =
-                                                           TTY_BREAK;
-                                        *tty->flip.char_buf_ptr++ =
-                                         cy_readb(base_addr+(CyRDSR<<index));
+                                        tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_BREAK);
                                        info->icount.rx++;
                                         if (info->flags & ASYNC_SAK){
                                             do_SAK(tty);
                                         }
                                     }else if(data & CyFRAME){
-                                        *tty->flip.flag_buf_ptr++ =
-                                                           TTY_FRAME;
-                                        *tty->flip.char_buf_ptr++ =
-                                         cy_readb(base_addr+(CyRDSR<<index));
+                                        tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_FRAME);
                                        info->icount.rx++;
                                        info->idle_stats.frame_errs++;
                                     }else if(data & CyPARITY){
-                                        *tty->flip.flag_buf_ptr++ =
-                                                           TTY_PARITY;
-                                        *tty->flip.char_buf_ptr++ =
-                                         cy_readb(base_addr+(CyRDSR<<index));
+                                       /* Pieces of seven... */
+                                        tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_PARITY);
                                        info->icount.rx++;
                                        info->idle_stats.parity_errs++;
                                     }else if(data & CyOVERRUN){
-                                        *tty->flip.flag_buf_ptr++ =
-                                                           TTY_OVERRUN;
-                                        *tty->flip.char_buf_ptr++ = 0;
+                                        tty_insert_flip_char(tty, 0, TTY_OVERRUN);
                                        info->icount.rx++;
                                         /* If the flip buffer itself is
                                            overflowing, we still lose
                                            the next incoming character.
                                          */
-                                        if(tty->flip.count
-                                                  < TTY_FLIPBUF_SIZE){
-                                            tty->flip.count++;
-                                            *tty->flip.flag_buf_ptr++ =
-                                                            TTY_NORMAL;
-                                           *tty->flip.char_buf_ptr++ =
-                                           cy_readb(base_addr+(CyRDSR<<index));
-                                           info->icount.rx++;
-                                        }
+                                        tty_insert_flip_char(tty, cy_readb(base_addr+(CyRDSR<<index)), TTY_FRAME);
+                                       info->icount.rx++;
                                        info->idle_stats.overruns++;
                                     /* These two conditions may imply */
                                     /* a normal read should be done. */
                                     /* }else if(data & CyTIMEOUT){ */
                                     /* }else if(data & CySPECHAR){ */
-                                    }else{
-                                        *tty->flip.flag_buf_ptr++ = 0;
-                                        *tty->flip.char_buf_ptr++ = 0;
-                                       info->icount.rx++;
+                                    }else {
+                                       tty_insert_flip_char(tty, 0, TTY_NORMAL);
+                                       info->icount.rx++;
                                     }
                                 }else{
-                                    *tty->flip.flag_buf_ptr++ = 0;
-                                    *tty->flip.char_buf_ptr++ = 0;
+                                   tty_insert_flip_char(tty, 0, TTY_NORMAL);
                                    info->icount.rx++;
                                 }
                             }else{
@@ -1240,14 +1221,10 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                                info->mon.char_max = char_count;
                             info->mon.char_last = char_count;
 #endif
-                            while(char_count--){
-                                if (tty->flip.count >= TTY_FLIPBUF_SIZE){
-                                        break;
-                                }
-                                tty->flip.count++;
+                           len = tty_buffer_request_room(tty, char_count);
+                            while(len--){
                                 data = cy_readb(base_addr+(CyRDSR<<index));
-                                *tty->flip.flag_buf_ptr++ = TTY_NORMAL;
-                                *tty->flip.char_buf_ptr++ = data;
+                               tty_insert_flip_char(tty, data, TTY_NORMAL);
                                info->idle_stats.recv_bytes++;
                                info->icount.rx++;
 #ifdef CY_16Y_HACK
@@ -1256,7 +1233,7 @@ cyy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                             }
                              info->idle_stats.recv_idle = jiffies;
                         }
-                        schedule_delayed_work(&tty->flip.work, 1);
+                       tty_schedule_flip(tty);
                     }
                     /* end of service */
                     cy_writeb(base_addr+(CyRIR<<index), (save_xir & 0x3f));
@@ -1551,6 +1528,7 @@ cyz_handle_rx(struct cyclades_port *info,
   struct cyclades_card *cinfo = &cy_card[info->card];
   struct tty_struct *tty = info->tty;
   volatile int char_count;
+  int len;
 #ifdef BLOCKMOVE
   int small_count;
 #else
@@ -1606,18 +1584,11 @@ cyz_handle_rx(struct cyclades_port *info,
                tty->flip.count += small_count;
            }
 #else
-           while(char_count--){
-               if (tty->flip.count >= N_TTY_BUF_SIZE - tty->read_cnt)
-                    break;
-
-               if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-                   break;
-
+           len = tty_buffer_request_room(tty, char_count);
+           while(len--){
                data = cy_readb(cinfo->base_addr + rx_bufaddr + new_rx_get);
                new_rx_get = (new_rx_get + 1) & (rx_bufsize - 1);
-               tty->flip.count++;
-               *tty->flip.flag_buf_ptr++ = TTY_NORMAL;
-               *tty->flip.char_buf_ptr++ = data;
+               tty_insert_flip_char(tty, data, TTY_NORMAL);
                info->idle_stats.recv_bytes++;
                info->icount.rx++;
            }
@@ -1635,7 +1606,7 @@ cyz_handle_rx(struct cyclades_port *info,
            }
 #endif
            info->idle_stats.recv_idle = jiffies;
-           schedule_delayed_work(&tty->flip.work, 1);
+           tty_schedule_flip(tty);
        }
        /* Update rx_get */
        cy_writel(&buf_ctrl->rx_get, new_rx_get);
@@ -1763,23 +1734,17 @@ cyz_handle_cmd(struct cyclades_card *cinfo)
 
        switch(cmd) {
            case C_CM_PR_ERROR:
-               tty->flip.count++;
-               *tty->flip.flag_buf_ptr++ = TTY_PARITY;
-               *tty->flip.char_buf_ptr++ = 0;
+               tty_insert_flip_char(tty, 0, TTY_PARITY);
                info->icount.rx++;
                special_count++;
                break;
            case C_CM_FR_ERROR:
-               tty->flip.count++;
-               *tty->flip.flag_buf_ptr++ = TTY_FRAME;
-               *tty->flip.char_buf_ptr++ = 0;
+               tty_insert_flip_char(tty, 0, TTY_FRAME);
                info->icount.rx++;
                special_count++;
                break;
            case C_CM_RXBRK:
-               tty->flip.count++;
-               *tty->flip.flag_buf_ptr++ = TTY_BREAK;
-               *tty->flip.char_buf_ptr++ = 0;
+               tty_insert_flip_char(tty, 0, TTY_BREAK);
                info->icount.rx++;
                special_count++;
                break;
@@ -1844,7 +1809,7 @@ cyz_handle_cmd(struct cyclades_card *cinfo)
        if(delta_count)
            cy_sched_event(info, Cy_EVENT_DELTA_WAKEUP);
        if(special_count)
-           schedule_delayed_work(&tty->flip.work, 1);
+           tty_schedule_flip(tty);
     }
 }
 
@@ -4054,7 +4019,7 @@ cy_ioctl(struct tty_struct *tty, struct file * file,
            break;
 #endif /* CONFIG_CYZ_INTR */
        case CYSETWAIT:
-           info->closing_wait = (unsigned int)arg * HZ/100;
+           info->closing_wait = (unsigned short)arg * HZ/100;
            ret_val = 0;
            break;
        case CYGETWAIT: