1 files changed, 283 insertions, 308 deletions

diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index 996d3230c929..9525eacc4758 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -8,7 +8,7 @@
  *  Extensively rewritten by Theodore Ts'o, 8/16/92 -- 9/14/92.  Now
  *  much more extensible to support other serial cards based on the
  *  16450/16550A UART's.  Added support for the AST FourPort and the
- *  Accent Async board.  
+ *  Accent Async board.
  *
  *  set_serial_info fixed to set the flags, custom divisor, and uart
  *      type fields.  Fix suggested by Michael K. Johnson 12/12/92.
@@ -61,11 +61,11 @@
 #include <linux/bitops.h>
 
 #include <asm/system.h>
-#include <asm/io.h>
+#include <linux/io.h>
 
 #include <asm/dma.h>
 #include <linux/slab.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include <linux/hayesesp.h>
 
@@ -127,8 +127,10 @@ static struct tty_driver *esp_driver;
 #undef SERIAL_DEBUG_FLOW
 
 #if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
-#define DBG_CNT(s) printk("(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \
- tty->name, (info->flags), serial_driver.refcount,info->count,tty->count,s)
+#define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \
+                                tty->name, info->flags, \
+                                serial_driver.refcount, \
+                                info->count, tty->count, s)
 #else
 #define DBG_CNT(s)
 #endif
@@ -189,7 +191,7 @@ static inline void serial_out(struct esp_struct *info, int offset,
  */
 static void rs_stop(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
 
         if (serial_paranoia_check(info, tty->name, "rs_stop"))
@@ -206,12 +208,12 @@ static void rs_stop(struct tty_struct *tty)
 
 static void rs_start(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
-        
+
         if (serial_paranoia_check(info, tty->name, "rs_start"))
                 return;
-        
+
         spin_lock_irqsave(&info->lock, flags);
         if (info->xmit_cnt && info->xmit_buf && !(info->IER & UART_IER_THRI)) {
                 info->IER |= UART_IER_THRI;
@@ -233,7 +235,7 @@ static void rs_start(struct tty_struct *tty)
  * rs_interrupt() should try to keep the interrupt handler as fast as
  * possible.  After you are done making modifications, it is not a bad
  * idea to do:
- * 
+ *
  * gcc -S -DKERNEL -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer serial.c
  *
  * and look at the resulting assemble code in serial.s.
@@ -290,7 +292,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
         }
 
         status_mask = (info->read_status_mask >> 2) & 0x07;
-                
+
         for (i = 0; i < num_bytes - 1; i += 2) {
                 *((unsigned short *)(pio_buf->data + i)) =
                         inw(info->port + UART_ESI_RX);
@@ -325,8 +327,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
                                 flag = TTY_BREAK;
                                 if (info->flags & ASYNC_SAK)
                                         do_SAK(tty);
-                        }
-                        else if (err_buf->data[i] & 0x02)
+                        } else if (err_buf->data[i] & 0x02)
                                 flag = TTY_FRAME;
                         else if (err_buf->data[i] & 0x01)
                                 flag = TTY_PARITY;
@@ -341,23 +342,29 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
         release_pio_buffer(err_buf);
 }
 
-static inline void receive_chars_dma(struct esp_struct *info, int num_bytes)
+static void program_isa_dma(int dma, int dir, unsigned long addr, int len)
 {
         unsigned long flags;
+
+        flags = claim_dma_lock();
+        disable_dma(dma);
+        clear_dma_ff(dma);
+        set_dma_mode(dma, dir);
+        set_dma_addr(dma, addr);
+        set_dma_count(dma, len);
+        enable_dma(dma);
+        release_dma_lock(flags);
+}
+
+static void receive_chars_dma(struct esp_struct *info, int num_bytes)
+{
         info->stat_flags &= ~ESP_STAT_RX_TIMEOUT;
         dma_bytes = num_bytes;
         info->stat_flags |= ESP_STAT_DMA_RX;
-        
-        flags=claim_dma_lock();
-        disable_dma(dma);
-        clear_dma_ff(dma);
-        set_dma_mode(dma, DMA_MODE_READ);
-        set_dma_addr(dma, isa_virt_to_bus(dma_buffer));
-        set_dma_count(dma, dma_bytes);
-        enable_dma(dma);
-        release_dma_lock(flags);
-        
-        serial_out(info, UART_ESI_CMD1, ESI_START_DMA_RX);
+
+        program_isa_dma(dma, DMA_MODE_READ, isa_virt_to_bus(dma_buffer),
+                                                                dma_bytes);
+        serial_out(info, UART_ESI_CMD1, ESI_START_DMA_RX);
 }
 
 static inline void receive_chars_dma_done(struct esp_struct *info,
@@ -366,22 +373,22 @@ static inline void receive_chars_dma_done(struct esp_struct *info,
         struct tty_struct *tty = info->tty;
         int num_bytes;
         unsigned long flags;
-        
-        flags=claim_dma_lock();
+
+        flags = claim_dma_lock();
         disable_dma(dma);
         clear_dma_ff(dma);
 
         info->stat_flags &= ~ESP_STAT_DMA_RX;
         num_bytes = dma_bytes - get_dma_residue(dma);
         release_dma_lock(flags);
-        
+
         info->icount.rx += num_bytes;
 
         if (num_bytes > 0) {
                 tty_insert_flip_string(tty, dma_buffer, num_bytes - 1);
 
                 status &= (0x1c & info->read_status_mask);
-                
+
                 /* Is the status significant or do we throw the last byte ? */
                 if (!(status & info->ignore_status_mask)) {
                         int statflag = 0;
@@ -393,13 +400,13 @@ static inline void receive_chars_dma_done(struct esp_struct *info,
                                         do_SAK(tty);
                         } else if (status & 0x08) {
                                 statflag = TTY_FRAME;
-                                (info->icount.frame)++;
-                        }
-                        else if (status & 0x04) {
+                                info->icount.frame++;
+                        } else if (status & 0x04) {
                                 statflag = TTY_PARITY;
-                                (info->icount.parity)++;
+                                info->icount.parity++;
                         }
-                        tty_insert_flip_char(tty, dma_buffer[num_bytes - 1], statflag);
+                        tty_insert_flip_char(tty, dma_buffer[num_bytes - 1],
+                                                                statflag);
                 }
                 tty_schedule_flip(tty);
         }
@@ -484,8 +491,6 @@ static inline void transmit_chars_pio(struct esp_struct *info,
 /* Caller must hold info->lock */
 static inline void transmit_chars_dma(struct esp_struct *info, int num_bytes)
 {
-        unsigned long flags;
-        
         dma_bytes = num_bytes;
 
         if (info->xmit_tail + dma_bytes <= ESP_XMIT_SIZE) {
@@ -517,26 +522,18 @@ static inline void transmit_chars_dma(struct esp_struct *info, int num_bytes)
         }
 
         info->stat_flags |= ESP_STAT_DMA_TX;
-        
-        flags=claim_dma_lock();
-        disable_dma(dma);
-        clear_dma_ff(dma);
-        set_dma_mode(dma, DMA_MODE_WRITE);
-        set_dma_addr(dma, isa_virt_to_bus(dma_buffer));
-        set_dma_count(dma, dma_bytes);
-        enable_dma(dma);
-        release_dma_lock(flags);
-        
-        serial_out(info, UART_ESI_CMD1, ESI_START_DMA_TX);
+
+        program_isa_dma(dma, DMA_MODE_WRITE, isa_virt_to_bus(dma_buffer),
+                                                                dma_bytes);
+        serial_out(info, UART_ESI_CMD1, ESI_START_DMA_TX);
 }
 
 static inline void transmit_chars_dma_done(struct esp_struct *info)
 {
         int num_bytes;
         unsigned long flags;
-        
 
-        flags=claim_dma_lock();
+        flags = claim_dma_lock();
         disable_dma(dma);
         clear_dma_ff(dma);
 
@@ -547,27 +544,21 @@ static inline void transmit_chars_dma_done(struct esp_struct *info)
         if (dma_bytes != num_bytes) {
                 dma_bytes -= num_bytes;
                 memmove(dma_buffer, dma_buffer + num_bytes, dma_bytes);
-                
-                flags=claim_dma_lock();
-                disable_dma(dma);
-                clear_dma_ff(dma);
-                set_dma_mode(dma, DMA_MODE_WRITE);
-                set_dma_addr(dma, isa_virt_to_bus(dma_buffer));
-                set_dma_count(dma, dma_bytes);
-                enable_dma(dma);
-                release_dma_lock(flags);
-                
-                serial_out(info, UART_ESI_CMD1, ESI_START_DMA_TX);
+
+                program_isa_dma(dma, DMA_MODE_WRITE,
+                                isa_virt_to_bus(dma_buffer), dma_bytes);
+
+                serial_out(info, UART_ESI_CMD1, ESI_START_DMA_TX);
         } else {
                 dma_bytes = 0;
                 info->stat_flags &= ~ESP_STAT_DMA_TX;
         }
 }
 
-static inline void check_modem_status(struct esp_struct *info)
+static void check_modem_status(struct esp_struct *info)
 {
         int     status;
-        
+
         serial_out(info, UART_ESI_CMD1, ESI_GET_UART_STAT);
         status = serial_in(info, UART_ESI_STAT2);
 
@@ -588,7 +579,7 @@ static inline void check_modem_status(struct esp_struct *info)
 #if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR))
                 printk("ttys%d CD now %s...", info->line,
                        (status & UART_MSR_DCD) ? "on" : "off");
-#endif          
+#endif
                 if (status & UART_MSR_DCD)
                         wake_up_interruptible(&info->open_wait);
                 else {
@@ -605,7 +596,7 @@ static inline void check_modem_status(struct esp_struct *info)
  */
 static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
 {
-        struct esp_struct * info;
+        struct esp_struct *info;
         unsigned err_status;
         unsigned int scratch;
 
@@ -617,7 +608,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
         scratch = serial_in(info, UART_ESI_SID);
 
         spin_lock(&info->lock);
-        
+
         if (!info->tty) {
                 spin_unlock(&info->lock);
                 return IRQ_NONE;
@@ -637,7 +628,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
                 if (err_status & 0x80) /* Start break */
                         wake_up_interruptible(&info->break_wait);
         }
-                
+
         if ((scratch & 0x88) || /* DMA completed or timed out */
             (err_status & 0x1c) /* receive error */) {
                 if (info->stat_flags & ESP_STAT_DMA_RX)
@@ -667,7 +658,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
                                 receive_chars_dma(info, num_bytes);
                 }
         }
-        
+
         if (!(info->stat_flags & (ESP_STAT_DMA_RX | ESP_STAT_DMA_TX)) &&
             (scratch & 0x02) && (info->IER & UART_IER_THRI)) {
                 if ((info->xmit_cnt <= 0) || info->tty->stopped) {
@@ -722,11 +713,11 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
  * ---------------------------------------------------------------
  */
 
-static inline void esp_basic_init(struct esp_struct * info)
+static void esp_basic_init(struct esp_struct *info)
 {
         /* put ESPC in enhanced mode */
         serial_out(info, UART_ESI_CMD1, ESI_SET_MODE);
-        
+
         if (info->stat_flags & ESP_STAT_NEVER_DMA)
                 serial_out(info, UART_ESI_CMD2, 0x01);
         else
@@ -783,13 +774,13 @@ static inline void esp_basic_init(struct esp_struct * info)
         serial_out(info, UART_ESI_CMD2, 0xff);
 }
 
-static int startup(struct esp_struct * info)
+static int startup(struct esp_struct *info)
 {
         unsigned long flags;
-        int     retval=0;
-        unsigned int num_chars;
+        int     retval = 0;
+        unsigned int num_chars;
 
-        spin_lock_irqsave(&info->lock, flags);
+        spin_lock_irqsave(&info->lock, flags);
 
         if (info->flags & ASYNC_INITIALIZED)
                 goto out;
@@ -802,7 +793,8 @@ static int startup(struct esp_struct * info)
         }
 
 #ifdef SERIAL_DEBUG_OPEN
-        printk("starting up ttys%d (irq %d)...", info->line, info->irq);
+        printk(KERN_DEBUG "starting up ttys%d (irq %d)...",
+                                                info->line, info->irq);
 #endif
 
         /* Flush the RX buffer.  Using the ESI flush command may cause */
@@ -863,7 +855,7 @@ static int startup(struct esp_struct * info)
                         dma_buffer = NULL;
                         info->stat_flags |= ESP_STAT_USE_PIO;
                 }
-                        
+
         }
 
         info->MCR = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2;
@@ -872,7 +864,7 @@ static int startup(struct esp_struct * info)
         serial_out(info, UART_ESI_CMD1, ESI_WRITE_UART);
         serial_out(info, UART_ESI_CMD2, UART_MCR);
         serial_out(info, UART_ESI_CMD2, info->MCR);
-        
+
         /*
          * Finally, enable interrupts
          */
@@ -881,7 +873,7 @@ static int startup(struct esp_struct * info)
                         UART_IER_DMA_TC;
         serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
         serial_out(info, UART_ESI_CMD2, info->IER);
-        
+
         if (info->tty)
                 clear_bit(TTY_IO_ERROR, &info->tty->flags);
         info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
@@ -900,7 +892,7 @@ static int startup(struct esp_struct * info)
                 if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
                         info->tty->alt_speed = 460800;
         }
-        
+
         /*
          * set the speed of the serial port
          */
@@ -918,7 +910,7 @@ out_unlocked:
  * This routine will shutdown a serial port; interrupts are disabled, and
  * DTR is dropped if the hangup on close termio flag is on.
  */
-static void shutdown(struct esp_struct * info)
+static void shutdown(struct esp_struct *info)
 {
         unsigned long   flags, f;
 
@@ -929,7 +921,7 @@ static void shutdown(struct esp_struct * info)
         printk("Shutting down serial port %d (irq %d)....", info->line,
                info->irq);
 #endif
-        
+
         spin_lock_irqsave(&info->lock, flags);
         /*
          * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
@@ -941,14 +933,14 @@ static void shutdown(struct esp_struct * info)
         /* stop a DMA transfer on the port being closed */
         /* DMA lock is higher priority always */
         if (info->stat_flags & (ESP_STAT_DMA_RX | ESP_STAT_DMA_TX)) {
-                f=claim_dma_lock();
+                f = claim_dma_lock();
                 disable_dma(dma);
                 clear_dma_ff(dma);
                 release_dma_lock(f);
-                
+
                 dma_bytes = 0;
         }
-        
+
         /*
          * Free the IRQ
          */
@@ -970,7 +962,7 @@ static void shutdown(struct esp_struct * info)
                         free_pages((unsigned long)dma_buffer,
                                    get_order(DMA_BUFFER_SZ));
                         dma_buffer = NULL;
-                }               
+                }
         }
 
         if (info->xmit_buf) {
@@ -992,7 +984,7 @@ static void shutdown(struct esp_struct * info)
 
         if (info->tty)
                 set_bit(TTY_IO_ERROR, &info->tty->flags);
-        
+
         info->flags &= ~ASYNC_INITIALIZED;
         spin_unlock_irqrestore(&info->lock, flags);
 }
@@ -1005,7 +997,7 @@ static void change_speed(struct esp_struct *info)
 {
         unsigned short port;
         int     quot = 0;
-        unsigned cflag,cval;
+        unsigned cflag, cval;
         int     baud, bits;
         unsigned char flow1 = 0, flow2 = 0;
         unsigned long flags;
@@ -1014,14 +1006,14 @@ static void change_speed(struct esp_struct *info)
                 return;
         cflag = info->tty->termios->c_cflag;
         port = info->port;
-        
+
         /* byte size and parity */
         switch (cflag & CSIZE) {
-              case CS5: cval = 0x00; bits = 7; break;
-              case CS6: cval = 0x01; bits = 8; break;
-              case CS7: cval = 0x02; bits = 9; break;
-              case CS8: cval = 0x03; bits = 10; break;
-              default:  cval = 0x00; bits = 7; break;
+        case CS5: cval = 0x00; bits = 7; break;
+        case CS6: cval = 0x01; bits = 8; break;
+        case CS7: cval = 0x02; bits = 9; break;
+        case CS8: cval = 0x03; bits = 10; break;
+        default:  cval = 0x00; bits = 7; break;
         }
         if (cflag & CSTOPB) {
                 cval |= 0x04;
@@ -1037,14 +1029,12 @@ static void change_speed(struct esp_struct *info)
         if (cflag & CMSPAR)
                 cval |= UART_LCR_SPAR;
 #endif
-
         baud = tty_get_baud_rate(info->tty);
         if (baud == 38400 &&
-            ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
+                ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
                 quot = info->custom_divisor;
         else {
-                if (baud == 134)
-                        /* Special case since 134 is really 134.5 */
+                if (baud == 134) /* Special case since 134 is really 134.5 */
                         quot = (2*BASE_BAUD / 269);
                 else if (baud)
                         quot = BASE_BAUD / baud;
@@ -1052,7 +1042,12 @@ static void change_speed(struct esp_struct *info)
         /* If the quotient is ever zero, default to 9600 bps */
         if (!quot)
                 quot = BASE_BAUD / 9600;
-        
+
+        if (baud) {
+                /* Actual rate */
+                baud = BASE_BAUD/quot;
+                tty_encode_baud_rate(info->tty, baud, baud);
+        }
         info->timeout = ((1024 * HZ * bits * quot) / BASE_BAUD) + (HZ / 50);
 
         /* CTS flow control flag and modem status interrupts */
@@ -1066,10 +1061,8 @@ static void change_speed(struct esp_struct *info)
                 info->flags &= ~ASYNC_CTS_FLOW;
         if (cflag & CLOCAL)
                 info->flags &= ~ASYNC_CHECK_CD;
-        else {
+        else
                 info->flags |= ASYNC_CHECK_CD;
-                /* info->IER |= UART_IER_MSI; */
-        }
 
         /*
          * Set up parity check flag
@@ -1079,7 +1072,7 @@ static void change_speed(struct esp_struct *info)
                 info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
         if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
                 info->read_status_mask |= UART_LSR_BI;
-        
+
         info->ignore_status_mask = 0;
 #if 0
         /* This should be safe, but for some broken bits of hardware... */
@@ -1092,7 +1085,7 @@ static void change_speed(struct esp_struct *info)
                 info->ignore_status_mask |= UART_LSR_BI;
                 info->read_status_mask |= UART_LSR_BI;
                 /*
-                 * If we're ignore parity and break indicators, ignore 
+                 * If we're ignore parity and break indicators, ignore
                  * overruns too.  (For real raw support).
                  */
                 if (I_IGNPAR(info->tty)) {
@@ -1130,19 +1123,19 @@ static void change_speed(struct esp_struct *info)
                 serial_out(info, UART_ESI_CMD2, 0x10);
                 serial_out(info, UART_ESI_CMD2, 0x21);
                 switch (cflag & CSIZE) {
-                        case CS5:
-                                serial_out(info, UART_ESI_CMD2, 0x1f);
-                                break;
-                        case CS6:
-                                serial_out(info, UART_ESI_CMD2, 0x3f);
-                                break;
-                        case CS7:
-                        case CS8:
-                                serial_out(info, UART_ESI_CMD2, 0x7f);
-                                break;
-                        default:
-                                serial_out(info, UART_ESI_CMD2, 0xff);
-                                break;
+                case CS5:
+                        serial_out(info, UART_ESI_CMD2, 0x1f);
+                        break;
+                case CS6:
+                        serial_out(info, UART_ESI_CMD2, 0x3f);
+                        break;
+                case CS7:
+                case CS8:
+                        serial_out(info, UART_ESI_CMD2, 0x7f);
+                        break;
+                default:
+                        serial_out(info, UART_ESI_CMD2, 0xff);
+                        break;
                 }
         }
 
@@ -1158,7 +1151,7 @@ static void change_speed(struct esp_struct *info)
 
 static int rs_put_char(struct tty_struct *tty, unsigned char ch)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
         int ret = 0;
 
@@ -1181,9 +1174,9 @@ static int rs_put_char(struct tty_struct *tty, unsigned char ch)
 
 static void rs_flush_chars(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
-                                
+
         if (serial_paranoia_check(info, tty->name, "rs_flush_chars"))
                 return;
 
@@ -1201,11 +1194,11 @@ out:
         spin_unlock_irqrestore(&info->lock, flags);
 }
 
-static int rs_write(struct tty_struct * tty,
+static int rs_write(struct tty_struct *tty,
                     const unsigned char *buf, int count)
 {
         int     c, t, ret = 0;
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
 
         if (serial_paranoia_check(info, tty->name, "rs_write"))
@@ -1213,19 +1206,19 @@ static int rs_write(struct tty_struct * tty,
 
         if (!info->xmit_buf)
                 return 0;
-            
+
         while (1) {
                 /* Thanks to R. Wolff for suggesting how to do this with */
                 /* interrupts enabled */
 
                 c = count;
                 t = ESP_XMIT_SIZE - info->xmit_cnt - 1;
-                
+
                 if (t < c)
                         c = t;
 
                 t = ESP_XMIT_SIZE - info->xmit_head;
-                
+
                 if (t < c)
                         c = t;
 
@@ -1255,10 +1248,10 @@ static int rs_write(struct tty_struct * tty,
 
 static int rs_write_room(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         int     ret;
         unsigned long flags;
-                                
+
         if (serial_paranoia_check(info, tty->name, "rs_write_room"))
                 return 0;
 
@@ -1273,8 +1266,8 @@ static int rs_write_room(struct tty_struct *tty)
 
 static int rs_chars_in_buffer(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
-                                
+        struct esp_struct *info = tty->driver_data;
+
         if (serial_paranoia_check(info, tty->name, "rs_chars_in_buffer"))
                 return 0;
         return info->xmit_cnt;
@@ -1282,9 +1275,9 @@ static int rs_chars_in_buffer(struct tty_struct *tty)
 
 static void rs_flush_buffer(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
-                                
+
         if (serial_paranoia_check(info, tty->name, "rs_flush_buffer"))
                 return;
         spin_lock_irqsave(&info->lock, flags);
@@ -1296,20 +1289,20 @@ static void rs_flush_buffer(struct tty_struct *tty)
 /*
  * ------------------------------------------------------------
  * rs_throttle()
- * 
+ *
  * This routine is called by the upper-layer tty layer to signal that
  * incoming characters should be throttled.
  * ------------------------------------------------------------
  */
-static void rs_throttle(struct tty_struct * tty)
+static void rs_throttle(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
 #ifdef SERIAL_DEBUG_THROTTLE
         char    buf[64];
-        
+
         printk("throttle %s: %d....\n", tty_name(tty, buf),
-               tty->ldisc.chars_in_buffer(tty));
+                                                tty_chars_in_buffer(tty));
 #endif
 
         if (serial_paranoia_check(info, tty->name, "rs_throttle"))
@@ -1324,20 +1317,20 @@ static void rs_throttle(struct tty_struct * tty)
         spin_unlock_irqrestore(&info->lock, flags);
 }
 
-static void rs_unthrottle(struct tty_struct * tty)
+static void rs_unthrottle(struct tty_struct *tty)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
 #ifdef SERIAL_DEBUG_THROTTLE
         char    buf[64];
-        
-        printk("unthrottle %s: %d....\n", tty_name(tty, buf),
-               tty->ldisc.chars_in_buffer(tty));
+
+        printk(KERN_DEBUG "unthrottle %s: %d....\n", tty_name(tty, buf),
+               tty_chars_in_buffer(tty));
 #endif
 
         if (serial_paranoia_check(info, tty->name, "rs_unthrottle"))
                 return;
-        
+
         spin_lock_irqsave(&info->lock, flags);
         info->IER |= UART_IER_RDI;
         serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
@@ -1353,11 +1346,11 @@ static void rs_unthrottle(struct tty_struct * tty)
  * ------------------------------------------------------------
  */
 
-static int get_serial_info(struct esp_struct * info,
+static int get_serial_info(struct esp_struct *info,
                            struct serial_struct __user *retinfo)
 {
         struct serial_struct tmp;
-  
+
         lock_kernel();
         memset(&tmp, 0, sizeof(tmp));
         tmp.type = PORT_16550A;
@@ -1372,16 +1365,16 @@ static int get_serial_info(struct esp_struct * info,
         tmp.custom_divisor = info->custom_divisor;
         tmp.hub6 = 0;
         unlock_kernel();
-        if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
+        if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
                 return -EFAULT;
         return 0;
 }
 
-static int get_esp_config(struct esp_struct * info,
+static int get_esp_config(struct esp_struct *info,
                           struct hayes_esp_config __user *retinfo)
 {
         struct hayes_esp_config tmp;
-  
+
         if (!retinfo)
                 return -EFAULT;
 
@@ -1399,7 +1392,7 @@ static int get_esp_config(struct esp_struct * info,
         return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
 }
 
-static int set_serial_info(struct esp_struct * info,
+static int set_serial_info(struct esp_struct *info,
                            struct serial_struct __user *new_info)
 {
         struct serial_struct new_serial;
@@ -1408,7 +1401,7 @@ static int set_serial_info(struct esp_struct * info,
         int retval = 0;
         struct esp_struct *current_async;
 
-        if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
+        if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
                 return -EFAULT;
         old_info = *info;
 
@@ -1429,7 +1422,7 @@ static int set_serial_info(struct esp_struct * info,
                 return -EINVAL;
 
         if (!capable(CAP_SYS_ADMIN)) {
-                if (change_irq || 
+                if (change_irq ||
                     (new_serial.close_delay != info->close_delay) ||
                     ((new_serial.flags & ~ASYNC_USR_MASK) !=
                      (info->flags & ~ASYNC_USR_MASK)))
@@ -1514,8 +1507,8 @@ static int set_serial_info(struct esp_struct * info,
         return retval;
 }
 
-static int set_esp_config(struct esp_struct * info,
-                          struct hayes_esp_config __user * new_info)
+static int set_esp_config(struct esp_struct *info,
+                          struct hayes_esp_config __user *new_info)
 {
         struct hayes_esp_config new_config;
         unsigned int change_dma;
@@ -1557,7 +1550,6 @@ static int set_esp_config(struct esp_struct * info,
                 if (new_config.dma_channel) {
                         /* PIO mode to DMA mode transition OR */
                         /* change current DMA channel */
-                        
                         current_async = ports;
 
                         while (current_async) {
@@ -1566,16 +1558,15 @@ static int set_esp_config(struct esp_struct * info,
                                                 return -EBUSY;
                                 } else if (current_async->count)
                                         return -EBUSY;
-                                        
-                                current_async =
-                                        current_async->next_port;
+
+                                current_async = current_async->next_port;
                         }
 
                         shutdown(info);
                         dma = new_config.dma_channel;
                         info->stat_flags &= ~ESP_STAT_NEVER_DMA;
-                        
-                        /* all ports must use the same DMA channel */
+
+                        /* all ports must use the same DMA channel */
 
                         spin_lock_irqsave(&info->lock, flags);
                         current_async = ports;
@@ -1587,7 +1578,6 @@ static int set_esp_config(struct esp_struct * info,
                         spin_unlock_irqrestore(&info->lock, flags);
                 } else {
                         /* DMA mode to PIO mode only */
-                        
                         if (info->count > 1)
                                 return -EBUSY;
 
@@ -1658,9 +1648,9 @@ static int set_esp_config(struct esp_struct * info,
  *          release the bus after transmitting. This must be done when
  *          the transmit shift register is empty, not be done when the
  *          transmit holding register is empty.  This functionality
- *          allows an RS485 driver to be written in user space. 
+ *          allows an RS485 driver to be written in user space.
  */
-static int get_lsr_info(struct esp_struct * info, unsigned int __user *value)
+static int get_lsr_info(struct esp_struct *info, unsigned int __user *value)
 {
         unsigned char status;
         unsigned int result;
@@ -1671,13 +1661,13 @@ static int get_lsr_info(struct esp_struct * info, unsigned int __user *value)
         status = serial_in(info, UART_ESI_STAT1);
         spin_unlock_irqrestore(&info->lock, flags);
         result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0);
-        return put_user(result,value);
+        return put_user(result, value);
 }
 
 
 static int esp_tiocmget(struct tty_struct *tty, struct file *file)
 {
-        struct esp_struct * info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned char control, status;
         unsigned long flags;
 
@@ -1704,7 +1694,7 @@ static int esp_tiocmget(struct tty_struct *tty, struct file *file)
 static int esp_tiocmset(struct tty_struct *tty, struct file *file,
                         unsigned int set, unsigned int clear)
 {
-        struct esp_struct * info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
 
         if (serial_paranoia_check(info, tty->name, __FUNCTION__))
@@ -1737,9 +1727,9 @@ static int esp_tiocmset(struct tty_struct *tty, struct file *file,
  */
 static void esp_break(struct tty_struct *tty, int break_state)
 {
-        struct esp_struct * info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
-        
+
         if (serial_paranoia_check(info, tty->name, "esp_break"))
                 return;
 
@@ -1759,10 +1749,10 @@ static void esp_break(struct tty_struct *tty, int break_state)
         }
 }
 
-static int rs_ioctl(struct tty_struct *tty, struct file * file,
+static int rs_ioctl(struct tty_struct *tty, struct file *file,
                     unsigned int cmd, unsigned long arg)
 {
-        struct esp_struct * info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         struct async_icount cprev, cnow;        /* kernel counter temps */
         struct serial_icounter_struct __user *p_cuser;  /* user space */
         void __user *argp = (void __user *)arg;
@@ -1780,102 +1770,93 @@ static int rs_ioctl(struct tty_struct *tty, struct file * file,
                 if (tty->flags & (1 << TTY_IO_ERROR))
                     return -EIO;
         }
-        
-        switch (cmd) {
-                case TIOCGSERIAL:
-                        return get_serial_info(info, argp);
-                case TIOCSSERIAL:
-                        lock_kernel();
-                        ret = set_serial_info(info, argp);
-                        unlock_kernel();
-                        return ret;
-                case TIOCSERCONFIG:
-                        /* do not reconfigure after initial configuration */
-                        return 0;
-
-                case TIOCSERGWILD:
-                        return put_user(0L, (unsigned long __user *)argp);
 
-                case TIOCSERGETLSR: /* Get line status register */
-                            return get_lsr_info(info, argp);
-
-                case TIOCSERSWILD:
-                        if (!capable(CAP_SYS_ADMIN))
-                                return -EPERM;
-                        return 0;
-
-                /*
-                 * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
-                 * - mask passed in arg for lines of interest
-                 *   (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
-                 * Caller should use TIOCGICOUNT to see which one it was
-                 */
-                 case TIOCMIWAIT:
+        switch (cmd) {
+        case TIOCGSERIAL:
+                return get_serial_info(info, argp);
+        case TIOCSSERIAL:
+                lock_kernel();
+                ret = set_serial_info(info, argp);
+                unlock_kernel();
+                return ret;
+        case TIOCSERGWILD:
+                return put_user(0L, (unsigned long __user *)argp);
+        case TIOCSERGETLSR: /* Get line status register */
+                return get_lsr_info(info, argp);
+        case TIOCSERSWILD:
+                if (!capable(CAP_SYS_ADMIN))
+                        return -EPERM;
+                return 0;
+        /*
+         * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
+         * - mask passed in arg for lines of interest
+         *   (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
+         * Caller should use TIOCGICOUNT to see which one it was
+         */
+        case TIOCMIWAIT:
+                spin_lock_irqsave(&info->lock, flags);
+                cprev = info->icount;   /* note the counters on entry */
+                spin_unlock_irqrestore(&info->lock, flags);
+                while (1) {
+                        /* FIXME: convert to new style wakeup */
+                        interruptible_sleep_on(&info->delta_msr_wait);
+                        /* see if a signal did it */
+                        if (signal_pending(current))
+                                return -ERESTARTSYS;
                         spin_lock_irqsave(&info->lock, flags);
-                        cprev = info->icount;   /* note the counters on entry */
+                        cnow = info->icount;    /* atomic copy */
                         spin_unlock_irqrestore(&info->lock, flags);
-                        while (1) {
-                                /* FIXME: convert to new style wakeup */
-                                interruptible_sleep_on(&info->delta_msr_wait);
-                                /* see if a signal did it */
-                                if (signal_pending(current))
-                                        return -ERESTARTSYS;
-                                spin_lock_irqsave(&info->lock, flags);
-                                cnow = info->icount;    /* atomic copy */
-                                spin_unlock_irqrestore(&info->lock, flags);
-                                if (cnow.rng == cprev.rng &&
-                                    cnow.dsr == cprev.dsr && 
-                                    cnow.dcd == cprev.dcd &&
-                                    cnow.cts == cprev.cts)
-                                        return -EIO; /* no change => error */
-                                if (((arg & TIOCM_RNG) &&
-                                     (cnow.rng != cprev.rng)) ||
-                                     ((arg & TIOCM_DSR) &&
-                                      (cnow.dsr != cprev.dsr)) ||
-                                     ((arg & TIOCM_CD) &&
-                                      (cnow.dcd != cprev.dcd)) ||
-                                     ((arg & TIOCM_CTS) &&
-                                      (cnow.cts != cprev.cts)) ) {
-                                        return 0;
-                                }
-                                cprev = cnow;
+                        if (cnow.rng == cprev.rng &&
+                            cnow.dsr == cprev.dsr &&
+                            cnow.dcd == cprev.dcd &&
+                            cnow.cts == cprev.cts)
+                                return -EIO; /* no change => error */
+                        if (((arg & TIOCM_RNG) &&
+                             (cnow.rng != cprev.rng)) ||
+                             ((arg & TIOCM_DSR) &&
+                              (cnow.dsr != cprev.dsr)) ||
+                             ((arg & TIOCM_CD) &&
+                              (cnow.dcd != cprev.dcd)) ||
+                             ((arg & TIOCM_CTS) &&
+                              (cnow.cts != cprev.cts))) {
+                                return 0;
                         }
-                        /* NOTREACHED */
-
-                /* 
-                 * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
-                 * Return: write counters to the user passed counter struct
-                 * NB: both 1->0 and 0->1 transitions are counted except for
-                 *     RI where only 0->1 is counted.
-                 */
-                case TIOCGICOUNT:
-                        spin_lock_irqsave(&info->lock, flags);
-                        cnow = info->icount;
-                        spin_unlock_irqrestore(&info->lock, flags);
-                        p_cuser = argp;
-                        if (put_user(cnow.cts, &p_cuser->cts) ||
-                            put_user(cnow.dsr, &p_cuser->dsr) ||
-                            put_user(cnow.rng, &p_cuser->rng) ||
-                            put_user(cnow.dcd, &p_cuser->dcd))
-                                return -EFAULT;
-
-                        return 0;
-                case TIOCGHAYESESP:
-                        return get_esp_config(info, argp);
-                case TIOCSHAYESESP:
-                        lock_kernel();
-                        ret = set_esp_config(info, argp);
-                        unlock_kernel();
-                        return ret;
-                default:
-                        return -ENOIOCTLCMD;
+                        cprev = cnow;
                 }
+                /* NOTREACHED */
+        /*
+         * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
+         * Return: write counters to the user passed counter struct
+         * NB: both 1->0 and 0->1 transitions are counted except for
+         *     RI where only 0->1 is counted.
+         */
+        case TIOCGICOUNT:
+                spin_lock_irqsave(&info->lock, flags);
+                cnow = info->icount;
+                spin_unlock_irqrestore(&info->lock, flags);
+                p_cuser = argp;
+                if (put_user(cnow.cts, &p_cuser->cts) ||
+                    put_user(cnow.dsr, &p_cuser->dsr) ||
+                    put_user(cnow.rng, &p_cuser->rng) ||
+                    put_user(cnow.dcd, &p_cuser->dcd))
+                        return -EFAULT;
+                        return 0;
+        case TIOCGHAYESESP:
+                return get_esp_config(info, argp);
+        case TIOCSHAYESESP:
+                lock_kernel();
+                ret = set_esp_config(info, argp);
+                unlock_kernel();
+                return ret;
+        default:
+                return -ENOIOCTLCMD;
+        }
         return 0;
 }
 
 static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
 
         change_speed(info);
@@ -1912,32 +1893,33 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 /*
  * ------------------------------------------------------------
  * rs_close()
- * 
+ *
  * This routine is called when the serial port gets closed.  First, we
  * wait for the last remaining data to be sent.  Then, we unlink its
  * async structure from the interrupt chain if necessary, and we free
  * that IRQ if nothing is left in the chain.
  * ------------------------------------------------------------
  */
-static void rs_close(struct tty_struct *tty, struct file * filp)
+static void rs_close(struct tty_struct *tty, struct file *filp)
 {
-        struct esp_struct * info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long flags;
 
         if (!info || serial_paranoia_check(info, tty->name, "rs_close"))
                 return;
-        
+
         spin_lock_irqsave(&info->lock, flags);
-        
+
         if (tty_hung_up_p(filp)) {
                 DBG_CNT("before DEC-hung");
                 goto out;
         }
-        
+
 #ifdef SERIAL_DEBUG_OPEN
-        printk("rs_close ttys%d, count = %d\n", info->line, info->count);
+        printk(KERN_DEBUG "rs_close ttys%d, count = %d\n",
+                                                info->line, info->count);
 #endif
-        if ((tty->count == 1) && (info->count != 1)) {
+        if (tty->count == 1 && info->count != 1) {
                 /*
                  * Uh, oh.  tty->count is 1, which means that the tty
                  * structure will be freed.  Info->count should always
@@ -1945,12 +1927,11 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
                  * one, we've got real problems, since it means the
                  * serial port won't be shutdown.
                  */
-                printk("rs_close: bad serial port count; tty->count is 1, "
-                       "info->count is %d\n", info->count);
+                printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->count is %d\n", info->count);
                 info->count = 1;
         }
         if (--info->count < 0) {
-                printk("rs_close: bad serial port count for ttys%d: %d\n",
+                printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n",
                        info->line, info->count);
                 info->count = 0;
         }
@@ -1962,7 +1943,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
 
         spin_unlock_irqrestore(&info->lock, flags);
         /*
-         * Now we wait for the transmit buffer to clear; and we notify 
+         * Now we wait for the transmit buffer to clear; and we notify
          * the line discipline to only process XON/XOFF characters.
          */
         tty->closing = 1;
@@ -2003,9 +1984,8 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
         info->tty = NULL;
 
         if (info->blocked_open) {
-                if (info->close_delay) {
+                if (info->close_delay)
                         msleep_interruptible(jiffies_to_msecs(info->close_delay));
-                }
                 wake_up_interruptible(&info->open_wait);
         }
         info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
@@ -2018,7 +1998,7 @@ out:
 
 static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
 {
-        struct esp_struct *info = (struct esp_struct *)tty->driver_data;
+        struct esp_struct *info = tty->driver_data;
         unsigned long orig_jiffies, char_time;
         unsigned long flags;
 
@@ -2060,11 +2040,11 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
  */
 static void esp_hangup(struct tty_struct *tty)
 {
-        struct esp_struct * info = (struct esp_struct *)tty->driver_data;
-        
+        struct esp_struct *info = tty->driver_data;
+
         if (serial_paranoia_check(info, tty->name, "esp_hangup"))
                 return;
-        
+
         rs_flush_buffer(tty);
         shutdown(info);
         info->count = 0;
@@ -2078,7 +2058,7 @@ static void esp_hangup(struct tty_struct *tty)
  * esp_open() and friends
  * ------------------------------------------------------------
  */
-static int block_til_ready(struct tty_struct *tty, struct file * filp,
+static int block_til_ready(struct tty_struct *tty, struct file *filp,
                            struct esp_struct *info)
 {
         DECLARE_WAITQUEUE(wait, current);
@@ -2127,11 +2107,11 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
         retval = 0;
         add_wait_queue(&info->open_wait, &wait);
 #ifdef SERIAL_DEBUG_OPEN
-        printk("block_til_ready before block: ttys%d, count = %d\n",
+        printk(KERN_DEBUG "block_til_ready before block: ttys%d, count = %d\n",
                info->line, info->count);
 #endif
         spin_lock_irqsave(&info->lock, flags);
-        if (!tty_hung_up_p(filp)) 
+        if (!tty_hung_up_p(filp))
                 info->count--;
         info->blocked_open++;
         while (1) {
@@ -2153,7 +2133,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
                         if (info->flags & ASYNC_HUP_NOTIFY)
                                 retval = -EAGAIN;
                         else
-                                retval = -ERESTARTSYS;  
+                                retval = -ERESTARTSYS;
 #else
                         retval = -EAGAIN;
 #endif
@@ -2172,7 +2152,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
                         break;
                 }
 #ifdef SERIAL_DEBUG_OPEN
-                printk("block_til_ready blocking: ttys%d, count = %d\n",
+                printk(KERN_DEBUG "block_til_ready blocking: ttys%d, count = %d\n",
                        info->line, info->count);
 #endif
                 spin_unlock_irqrestore(&info->lock, flags);
@@ -2186,14 +2166,14 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
         info->blocked_open--;
         spin_unlock_irqrestore(&info->lock, flags);
 #ifdef SERIAL_DEBUG_OPEN
-        printk("block_til_ready after blocking: ttys%d, count = %d\n",
+        printk(KERN_DEBUG "block_til_ready after blocking: ttys%d, count = %d\n",
                info->line, info->count);
 #endif
         if (retval)
                 return retval;
         info->flags |= ASYNC_NORMAL_ACTIVE;
         return 0;
-}       
+}
 
 /*
  * This routine is called whenever a serial port is opened.  It
@@ -2201,7 +2181,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
  * the IRQ chain.   It also performs the serial-specific
  * initialization for the tty structure.
  */
-static int esp_open(struct tty_struct *tty, struct file * filp)
+static int esp_open(struct tty_struct *tty, struct file *filp)
 {
         struct esp_struct       *info;
         int                     retval, line;
@@ -2224,7 +2204,7 @@ static int esp_open(struct tty_struct *tty, struct file * filp)
         }
 
 #ifdef SERIAL_DEBUG_OPEN
-        printk("esp_open %s, count = %d\n", tty->name, info->count);
+        printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->count);
 #endif
         spin_lock_irqsave(&info->lock, flags);
         info->count++;
@@ -2232,7 +2212,7 @@ static int esp_open(struct tty_struct *tty, struct file * filp)
         info->tty = tty;
 
         spin_unlock_irqrestore(&info->lock, flags);
-        
+
         /*
          * Start up serial port
          */
@@ -2243,14 +2223,13 @@ static int esp_open(struct tty_struct *tty, struct file * filp)
         retval = block_til_ready(tty, filp, info);
         if (retval) {
 #ifdef SERIAL_DEBUG_OPEN
-                printk("esp_open returning after block_til_ready with %d\n",
+                printk(KERN_DEBUG "esp_open returning after block_til_ready with %d\n",
                        retval);
 #endif
                 return retval;
         }
-
 #ifdef SERIAL_DEBUG_OPEN
-        printk("esp_open %s successful...", tty->name);
+        printk(KERN_DEBUG "esp_open %s successful...", tty->name);
 #endif
         return 0;
 }
@@ -2268,10 +2247,10 @@ static int esp_open(struct tty_struct *tty, struct file * filp)
  * number, and identifies which options were configured into this
  * driver.
  */
- 
-static inline void show_serial_version(void)
+
+static void show_serial_version(void)
 {
-        printk(KERN_INFO "%s version %s (DMA %u)\n",
+        printk(KERN_INFO "%s version %s (DMA %u)\n",
                 serial_name, serial_version, dma);
 }
 
@@ -2279,7 +2258,7 @@ static inline void show_serial_version(void)
  * This routine is called by espserial_init() to initialize a specific serial
  * port.
  */
-static inline int autoconfig(struct esp_struct * info)
+static int autoconfig(struct esp_struct *info)
 {
         int port_detected = 0;
         unsigned long flags;
@@ -2355,14 +2334,14 @@ static const struct tty_operations esp_ops = {
 static int __init espserial_init(void)
 {
         int i, offset;
-        struct esp_struct * info;
+        struct esp_struct *info;
         struct esp_struct *last_primary = NULL;
-        int esp[] = {0x100,0x140,0x180,0x200,0x240,0x280,0x300,0x380};
+        int esp[] = { 0x100, 0x140, 0x180, 0x200, 0x240, 0x280, 0x300, 0x380 };
 
         esp_driver = alloc_tty_driver(NR_PORTS);
         if (!esp_driver)
                 return -ENOMEM;
-        
+
         for (i = 0; i < NR_PRIMARY; i++) {
                 if (irq[i] != 0) {
                         if ((irq[i] < 2) || (irq[i] > 15) || (irq[i] == 6) ||
@@ -2384,20 +2363,20 @@ static int __init espserial_init(void)
 
         if ((flow_off < 1) || (flow_off > 1023))
                 flow_off = 1016;
-        
+
         if ((flow_on < 1) || (flow_on > 1023))
                 flow_on = 944;
 
         if ((rx_timeout < 0) || (rx_timeout > 255))
                 rx_timeout = 128;
-        
+
         if (flow_on >= flow_off)
                 flow_on = flow_off - 1;
 
         show_serial_version();
 
         /* Initialize the tty_driver structure */
-        
+
         esp_driver->owner = THIS_MODULE;
         esp_driver->name = "ttyP";
         esp_driver->major = ESP_IN_MAJOR;
@@ -2407,10 +2386,11 @@ static int __init espserial_init(void)
         esp_driver->init_termios = tty_std_termios;
         esp_driver->init_termios.c_cflag =
                 B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+        esp_driver->init_termios.c_ispeed = 9600;
+        esp_driver->init_termios.c_ospeed = 9600;
         esp_driver->flags = TTY_DRIVER_REAL_RAW;
         tty_set_operations(esp_driver, &esp_ops);
-        if (tty_register_driver(esp_driver))
-        {
+        if (tty_register_driver(esp_driver)) {
                 printk(KERN_ERR "Couldn't register esp serial driver");
                 put_tty_driver(esp_driver);
                 return 1;
@@ -2418,8 +2398,7 @@ static int __init espserial_init(void)
 
         info = kzalloc(sizeof(struct esp_struct), GFP_KERNEL);
 
-        if (!info)
-        {
+        if (!info) {
                 printk(KERN_ERR "Couldn't allocate memory for esp serial device information\n");
                 tty_unregister_driver(esp_driver);
                 put_tty_driver(esp_driver);
@@ -2482,10 +2461,8 @@ static int __init espserial_init(void)
                         info->stat_flags |= ESP_STAT_NEVER_DMA;
 
                 info = kzalloc(sizeof(struct esp_struct), GFP_KERNEL);
-                if (!info)
-                {
-                        printk(KERN_ERR "Couldn't allocate memory for esp serial device information\n"); 
-
+                if (!info) {
+                        printk(KERN_ERR "Couldn't allocate memory for esp serial device information\n");
                         /* allow use of the already detected ports */
                         return 0;
                 }
@@ -2509,22 +2486,20 @@ static int __init espserial_init(void)
         return 0;
 }
 
-static void __exit espserial_exit(void) 
+static void __exit espserial_exit(void)
 {
         int e1;
         struct esp_struct *temp_async;
         struct esp_pio_buffer *pio_buf;
 
-        /* printk("Unloading %s: version %s\n", serial_name, serial_version); */
-        if ((e1 = tty_unregister_driver(esp_driver)))
-                printk("SERIAL: failed to unregister serial driver (%d)\n",
-                       e1);
+        e1 = tty_unregister_driver(esp_driver);
+        if (e1)
+                printk(KERN_ERR "esp: failed to unregister driver (%d)\n", e1);
         put_tty_driver(esp_driver);
 
         while (ports) {
-                if (ports->port) {
+                if (ports->port)
                         release_region(ports->port, REGION_SIZE);
-                }
                 temp_async = ports->next_port;
                 kfree(ports);
                 ports = temp_async;