8 files changed, 54 insertions, 46 deletions

diff --git a/include/linux/devpts_fs.h b/include/linux/devpts_fs.h
index 5ce0e5fd712..251a2090a55 100644
--- a/include/linux/devpts_fs.h
+++ b/include/linux/devpts_fs.h
@@ -20,28 +20,28 @@
 int devpts_new_index(struct inode *ptmx_inode);
 void devpts_kill_index(struct inode *ptmx_inode, int idx);
 /* mknod in devpts */
-int devpts_pty_new(struct inode *ptmx_inode, struct tty_struct *tty);
-/* get tty structure */
-struct tty_struct *devpts_get_tty(struct inode *pts_inode, int number);
+struct inode *devpts_pty_new(struct inode *ptmx_inode, dev_t device, int index,
+                void *priv);
+/* get private structure */
+void *devpts_get_priv(struct inode *pts_inode);
 /* unlink */
-void devpts_pty_kill(struct tty_struct *tty);
+void devpts_pty_kill(struct inode *inode);
 
 #else
 
 /* Dummy stubs in the no-pty case */
 static inline int devpts_new_index(struct inode *ptmx_inode) { return -EINVAL; }
 static inline void devpts_kill_index(struct inode *ptmx_inode, int idx) { }
-static inline int devpts_pty_new(struct inode *ptmx_inode,
-                                struct tty_struct *tty)
+static inline struct inode *devpts_pty_new(struct inode *ptmx_inode,
+                dev_t device, int index, void *priv)
 {
-        return -EINVAL;
+        return ERR_PTR(-EINVAL);
 }
-static inline struct tty_struct *devpts_get_tty(struct inode *pts_inode,
-                int number)
+static inline void *devpts_get_priv(struct inode *pts_inode)
 {
         return NULL;
 }
-static inline void devpts_pty_kill(struct tty_struct *tty) { }
+static inline void devpts_pty_kill(struct inode *inode) { }
 
 #endif
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 9d36b829533..0f8447376dd 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1985,6 +1985,9 @@
 #define PCI_DEVICE_ID_EXAR_XR17C152     0x0152
 #define PCI_DEVICE_ID_EXAR_XR17C154     0x0154
 #define PCI_DEVICE_ID_EXAR_XR17C158     0x0158
+#define PCI_DEVICE_ID_EXAR_XR17V352     0x0352
+#define PCI_DEVICE_ID_EXAR_XR17V354     0x0354
+#define PCI_DEVICE_ID_EXAR_XR17V358     0x0358
 
 #define PCI_VENDOR_ID_MICROGATE         0x13c0
 #define PCI_DEVICE_ID_MICROGATE_USC     0x0010
@@ -2323,6 +2326,8 @@
 
 #define PCI_VENDOR_ID_TOPSPIN           0x1867
 
+#define PCI_VENDOR_ID_COMMTECH          0x18f7
+
 #define PCI_VENDOR_ID_SILAN             0x1904
 
 #define PCI_VENDOR_ID_RENESAS           0x1912
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index c174c90fb3f..c490d20b3fb 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -105,6 +105,8 @@ extern int early_serial_setup(struct uart_port *port);
 
 extern int serial8250_find_port(struct uart_port *p);
 extern int serial8250_find_port_for_earlycon(void);
+extern unsigned int serial8250_early_in(struct uart_port *port, int offset);
+extern void serial8250_early_out(struct uart_port *port, int offset, int value);
 extern int setup_early_serial8250_console(char *cmdline);
 extern void serial8250_do_set_termios(struct uart_port *port,
                 struct ktermios *termios, struct ktermios *old);
diff --git a/include/linux/tty.h b/include/linux/tty.h
index f0b4eb47297..8db1b569c37 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -188,7 +188,9 @@ struct tty_port_operations {
 };
         
 struct tty_port {
+        struct tty_bufhead      buf;            /* Locked internally */
         struct tty_struct       *tty;           /* Back pointer */
+        struct tty_struct       *itty;          /* internal back ptr */
         const struct tty_port_operations *ops;  /* Port operations */
         spinlock_t              lock;           /* Lock protecting tty field */
         int                     blocked_open;   /* Waiting to open */
@@ -197,6 +199,9 @@ struct tty_port {
         wait_queue_head_t       close_wait;     /* Close waiters */
         wait_queue_head_t       delta_msr_wait; /* Modem status change */
         unsigned long           flags;          /* TTY flags ASY_*/
+        unsigned long           iflags;         /* TTYP_ internal flags */
+#define TTYP_FLUSHING                   1  /* Flushing to ldisc in progress */
+#define TTYP_FLUSHPENDING               2  /* Queued buffer flush pending */
         unsigned char           console:1;      /* port is a console */
         struct mutex            mutex;          /* Locking */
         struct mutex            buf_mutex;      /* Buffer alloc lock */
@@ -235,6 +240,7 @@ struct tty_struct {
         struct mutex ldisc_mutex;
         struct tty_ldisc *ldisc;
 
+        struct mutex atomic_write_lock;
         struct mutex legacy_mutex;
         struct mutex termios_mutex;
         spinlock_t ctrl_lock;
@@ -254,7 +260,6 @@ struct tty_struct {
 
         struct tty_struct *link;
         struct fasync_struct *fasync;
-        struct tty_bufhead buf;         /* Locked internally */
         int alt_speed;          /* For magic substitution of 38400 bps */
         wait_queue_head_t write_wait;
         wait_queue_head_t read_wait;
@@ -265,37 +270,10 @@ struct tty_struct {
 
 #define N_TTY_BUF_SIZE 4096
 
-        /*
-         * The following is data for the N_TTY line discipline.  For
-         * historical reasons, this is included in the tty structure.
-         * Mostly locked by the BKL.
-         */
-        unsigned int column;
-        unsigned char lnext:1, erasing:1, raw:1, real_raw:1, icanon:1;
         unsigned char closing:1;
-        unsigned char echo_overrun:1;
         unsigned short minimum_to_wake;
-        unsigned long overrun_time;
-        int num_overrun;
-        unsigned long process_char_map[256/(8*sizeof(unsigned long))];
-        char *read_buf;
-        int read_head;
-        int read_tail;
-        int read_cnt;
-        unsigned long read_flags[N_TTY_BUF_SIZE/(8*sizeof(unsigned long))];
-        unsigned char *echo_buf;
-        unsigned int echo_pos;
-        unsigned int echo_cnt;
-        int canon_data;
-        unsigned long canon_head;
-        unsigned int canon_column;
-        struct mutex atomic_read_lock;
-        struct mutex atomic_write_lock;
-        struct mutex output_lock;
-        struct mutex echo_lock;
         unsigned char *write_buf;
         int write_cnt;
-        spinlock_t read_lock;
         /* If the tty has a pending do_SAK, queue it here - akpm */
         struct work_struct SAK_work;
         struct tty_port *port;
@@ -335,8 +313,6 @@ struct tty_file_private {
 #define TTY_PTY_LOCK            16      /* pty private */
 #define TTY_NO_WRITE_SPLIT      17      /* Preserve write boundaries to driver */
 #define TTY_HUPPED              18      /* Post driver->hangup() */
-#define TTY_FLUSHING            19      /* Flushing to ldisc in progress */
-#define TTY_FLUSHPENDING        20      /* Queued buffer flush pending */
 #define TTY_HUPPING             21      /* ->hangup() in progress */
 
 #define TTY_WRITE_FLUSH(tty) tty_write_flush((tty))
@@ -412,9 +388,9 @@ extern void disassociate_ctty(int priv);
 extern void no_tty(void);
 extern void tty_flip_buffer_push(struct tty_struct *tty);
 extern void tty_flush_to_ldisc(struct tty_struct *tty);
-extern void tty_buffer_free_all(struct tty_struct *tty);
+extern void tty_buffer_free_all(struct tty_port *port);
 extern void tty_buffer_flush(struct tty_struct *tty);
-extern void tty_buffer_init(struct tty_struct *tty);
+extern void tty_buffer_init(struct tty_port *port);
 extern speed_t tty_get_baud_rate(struct tty_struct *tty);
 extern speed_t tty_termios_baud_rate(struct ktermios *termios);
 extern speed_t tty_termios_input_baud_rate(struct ktermios *termios);
@@ -479,6 +455,7 @@ extern struct device *tty_port_register_device_attr(struct tty_port *port,
                 const struct attribute_group **attr_grp);
 extern int tty_port_alloc_xmit_buf(struct tty_port *port);
 extern void tty_port_free_xmit_buf(struct tty_port *port);
+extern void tty_port_destroy(struct tty_port *port);
 extern void tty_port_put(struct tty_port *port);
 
 static inline struct tty_port *tty_port_get(struct tty_port *port)
@@ -535,7 +512,7 @@ extern void n_tty_inherit_ops(struct tty_ldisc_ops *ops);
 /* tty_audit.c */
 #ifdef CONFIG_AUDIT
 extern void tty_audit_add_data(struct tty_struct *tty, unsigned char *data,
-                               size_t size);
+                               size_t size, unsigned icanon);
 extern void tty_audit_exit(void);
 extern void tty_audit_fork(struct signal_struct *sig);
 extern void tty_audit_tiocsti(struct tty_struct *tty, char ch);
@@ -544,7 +521,7 @@ extern int tty_audit_push_task(struct task_struct *tsk,
                                kuid_t loginuid, u32 sessionid);
 #else
 static inline void tty_audit_add_data(struct tty_struct *tty,
-                                      unsigned char *data, size_t size)
+                unsigned char *data, size_t size, unsigned icanon)
 {
 }
 static inline void tty_audit_tiocsti(struct tty_struct *tty, char ch)
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index 9239d033a0a..2002344ed36 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -11,7 +11,7 @@ void tty_schedule_flip(struct tty_struct *tty);
 static inline int tty_insert_flip_char(struct tty_struct *tty,
                                         unsigned char ch, char flag)
 {
-        struct tty_buffer *tb = tty->buf.tail;
+        struct tty_buffer *tb = tty->port->buf.tail;
         if (tb && tb->used < tb->size) {
                 tb->flag_buf_ptr[tb->used] = flag;
                 tb->char_buf_ptr[tb->used++] = ch;
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 199975fac39..143dacbb7d9 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -74,6 +74,9 @@
 #define TCSETXW         0x5435
 #define TIOCSIG         _IOW('T', 0x36, int)  /* pty: generate signal */
 #define TIOCVHANGUP     0x5437
+#define TIOCGPKT        _IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK      _IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL       _IOR('T', 0x40, int) /* Get exclusive mode state */
 
 #define FIONCLEX        0x5450
 #define FIOCLEX         0x5451
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 7e1ab20adc0..78f99d97475 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -49,7 +49,8 @@
 #define PORT_XR17D15X   21      /* Exar XR17D15x UART */
 #define PORT_LPC3220    22      /* NXP LPC32xx SoC "Standard" UART */
 #define PORT_8250_CIR   23      /* CIR infrared port, has its own driver */
-#define PORT_MAX_8250   23      /* max port ID */
+#define PORT_XR17V35X   24      /* Exar XR17V35x UARTs */
+#define PORT_MAX_8250   24      /* max port ID */
 
 /*
  * ARM specific type numbers.  These are not currently guaranteed
@@ -215,5 +216,7 @@
 /* Energy Micro efm32 SoC */
 #define PORT_EFMUART   100
 
+/* ARC (Synopsys) on-chip UART */
+#define PORT_ARC       101
 
 #endif /* _UAPILINUX_SERIAL_CORE_H */
diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h
index 5ed325e88a8..e6322605b13 100644
--- a/include/uapi/linux/serial_reg.h
+++ b/include/uapi/linux/serial_reg.h
@@ -367,5 +367,23 @@
 #define UART_OMAP_MDR1_CIR_MODE         0x06    /* CIR mode */
 #define UART_OMAP_MDR1_DISABLE          0x07    /* Disable (default state) */
 
+/*
+ * These are definitions for the Exar XR17V35X and XR17(C|D)15X
+ */
+#define UART_EXAR_8XMODE        0x88    /* 8X sampling rate select */
+#define UART_EXAR_SLEEP         0x8b    /* Sleep mode */
+#define UART_EXAR_DVID          0x8d    /* Device identification */
+
+#define UART_EXAR_FCTR          0x08    /* Feature Control Register */
+#define UART_FCTR_EXAR_IRDA     0x08    /* IrDa data encode select */
+#define UART_FCTR_EXAR_485      0x10    /* Auto 485 half duplex dir ctl */
+#define UART_FCTR_EXAR_TRGA     0x00    /* FIFO trigger table A */
+#define UART_FCTR_EXAR_TRGB     0x60    /* FIFO trigger table B */
+#define UART_FCTR_EXAR_TRGC     0x80    /* FIFO trigger table C */
+#define UART_FCTR_EXAR_TRGD     0xc0    /* FIFO trigger table D programmable */
+
+#define UART_EXAR_TXTRG         0x0a    /* Tx FIFO trigger level write-only */
+#define UART_EXAR_RXTRG         0x0b    /* Rx FIFO trigger level write-only */
+
 #endif /* _LINUX_SERIAL_REG_H */