Merge branch 'tty-updates' from Alan

* tty-updates: (75 commits) serial_8250: support for Sealevel Systems Model 7803 COMM+8 hso maintainers update patch hso modem detect fix patch against Alan Cox'es tty tree tty: Fix an ircomm warning and note another bug drivers/char/cyclades.c: cy_pci_probe: fix error path Serial: UART driver changes for Cavium OCTEON. Serial: Allow port type to be specified when calling serial8250_register_port. 8250: Serial driver changes to support future Cavium OCTEON serial patches. 8250: Don't clobber spinlocks. fix for tty-serial-move-port tty: We want the port object to be persistent __FUNCTION__ is gcc-specific, use __func__ serial: RS485 ioctl structure uses __u32 include linux/types.h tty: Drop the lock_kernel in the private ioctl hook synclink_cs: Convert to tty_port tty: use port methods for the rocket driver tty: kref the rocket driver tty: make rocketport use standard port->flags tty: Redo the rocket driver locking tty: Make epca use the port helpers ...
2009-01-02 10:25:51 -08:00
parent 609e5b71d0 e65f0f8271
commit d2fde28ce7
64 changed files with 3559 additions and 2625 deletions
--- a/include/linux/8250_pci.h
+++ b/include/linux/8250_pci.h
@@ -31,7 +31,7 @@ struct pciserial_board {
 struct serial_private;

 struct serial_private *
-pciserial_init_ports(struct pci_dev *dev, struct pciserial_board *board);
+pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board);
 void pciserial_remove_ports(struct serial_private *priv);
 void pciserial_suspend_ports(struct serial_private *priv);
 void pciserial_resume_ports(struct serial_private *priv);
--- a/include/linux/generic_serial.h
+++ b/include/linux/generic_serial.h
@@ -21,7 +21,6 @@ struct real_driver {
  void                    (*enable_tx_interrupts) (void *);
  void                    (*disable_rx_interrupts) (void *);
  void                    (*enable_rx_interrupts) (void *);
-  int                     (*get_CD) (void *);
  void                    (*shutdown_port) (void*);
  int                     (*set_real_termios) (void*);
  int                     (*chars_in_buffer) (void*);
--- a/include/linux/istallion.h
+++ b/include/linux/istallion.h
@@ -59,9 +59,7 @@ struct stliport {
 	unsigned int		devnr;
 	int			baud_base;
 	int			custom_divisor;
-	int			close_delay;
 	int			closing_wait;
-	int			openwaitcnt;
 	int			rc;
 	int			argsize;
 	void			*argp;
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1766,6 +1766,7 @@
 #define PCI_DEVICE_ID_SIIG_8S_20x_650	0x2081
 #define PCI_DEVICE_ID_SIIG_8S_20x_850	0x2082
 #define PCI_SUBDEVICE_ID_SIIG_QUARTET_SERIAL	0x2050
+#define PCI_SUBDEVICE_ID_SIIG_DUAL_SERIAL	0x2530

 #define PCI_VENDOR_ID_RADISYS		0x1331

@@ -1795,6 +1796,7 @@
 #define PCI_DEVICE_ID_SEALEVEL_UCOMM232	0x7202
 #define PCI_DEVICE_ID_SEALEVEL_COMM4	0x7401
 #define PCI_DEVICE_ID_SEALEVEL_COMM8	0x7801
+#define PCI_DEVICE_ID_SEALEVEL_7803	0x7803
 #define PCI_DEVICE_ID_SEALEVEL_UCOMM8	0x7804

 #define PCI_VENDOR_ID_HYPERCOPE		0x1365
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -10,8 +10,9 @@
 #ifndef _LINUX_SERIAL_H
 #define _LINUX_SERIAL_H

-#ifdef __KERNEL__
 #include <linux/types.h>
+
+#ifdef __KERNEL__
 #include <asm/page.h>

 /*
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -28,6 +28,9 @@ struct plat_serial8250_port {
 	unsigned char	iotype;		/* UPIO_* */
 	unsigned char	hub6;
 	upf_t		flags;		/* UPF_* flags */
+	unsigned int	type;		/* If UPF_FIXED_TYPE */
+	unsigned int	(*serial_in)(struct uart_port *, int);
+	void		(*serial_out)(struct uart_port *, int, int);
 };

 /*
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -40,7 +40,8 @@
 #define PORT_NS16550A	14
 #define PORT_XSCALE	15
 #define PORT_RM9000	16	/* PMC-Sierra RM9xxx internal UART */
-#define PORT_MAX_8250	16	/* max port ID */
+#define PORT_OCTEON	17	/* Cavium OCTEON internal UART */
+#define PORT_MAX_8250	17	/* max port ID */

 /*
 * ARM specific type numbers.  These are not currently guaranteed
@@ -248,6 +249,8 @@ struct uart_port {
 	spinlock_t		lock;			/* port lock */
 	unsigned long		iobase;			/* in/out[bwl] */
 	unsigned char __iomem	*membase;		/* read/write[bwl] */
+	unsigned int		(*serial_in)(struct uart_port *, int);
+	void			(*serial_out)(struct uart_port *, int, int);
 	unsigned int		irq;			/* irq number */
 	unsigned int		uartclk;		/* base uart clock */
 	unsigned int		fifosize;		/* tx fifo size */
@@ -293,6 +296,8 @@ struct uart_port {
 #define UPF_MAGIC_MULTIPLIER	((__force upf_t) (1 << 16))
 #define UPF_CONS_FLOW		((__force upf_t) (1 << 23))
 #define UPF_SHARE_IRQ		((__force upf_t) (1 << 24))
+/* The exact UART type is known and should not be probed.  */
+#define UPF_FIXED_TYPE		((__force upf_t) (1 << 27))
 #define UPF_BOOT_AUTOCONF	((__force upf_t) (1 << 28))
 #define UPF_FIXED_PORT		((__force upf_t) (1 << 29))
 #define UPF_DEAD		((__force upf_t) (1 << 30))
@@ -315,36 +320,14 @@ struct uart_port {
 	void			*private_data;		/* generic platform data pointer */
 };

-/*
- * This is the state information which is persistent across opens.
- * The low level driver must not to touch any elements contained
- * within.
- */
-struct uart_state {
-	unsigned int		close_delay;		/* msec */
-	unsigned int		closing_wait;		/* msec */
-
-#define USF_CLOSING_WAIT_INF	(0)
-#define USF_CLOSING_WAIT_NONE	(~0U)
-
-	int			count;
-	int			pm_state;
-	struct uart_info	*info;
-	struct uart_port	*port;
-
-	struct mutex		mutex;
-};
-
-#define UART_XMIT_SIZE	PAGE_SIZE
-
-typedef unsigned int __bitwise__ uif_t;
-
 /*
 * This is the state information which is only valid when the port
- * is open; it may be freed by the core driver once the device has
+ * is open; it may be cleared the core driver once the device has
 * been closed.  Either the low level driver or the core can modify
 * stuff here.
 */
+typedef unsigned int __bitwise__ uif_t;
+
 struct uart_info {
 	struct tty_port		port;
 	struct circ_buf		xmit;
@@ -366,6 +349,29 @@ struct uart_info {
 	wait_queue_head_t	delta_msr_wait;
 };

+/*
+ * This is the state information which is persistent across opens.
+ * The low level driver must not to touch any elements contained
+ * within.
+ */
+struct uart_state {
+	unsigned int		close_delay;		/* msec */
+	unsigned int		closing_wait;		/* msec */
+
+#define USF_CLOSING_WAIT_INF	(0)
+#define USF_CLOSING_WAIT_NONE	(~0U)
+
+	int			count;
+	int			pm_state;
+	struct uart_info	info;
+	struct uart_port	*port;
+
+	struct mutex		mutex;
+};
+
+#define UART_XMIT_SIZE	PAGE_SIZE
+
+
 /* number of characters left in xmit buffer before we ask for more */
 #define WAKEUP_CHARS		256

@@ -439,8 +445,13 @@ int uart_resume_port(struct uart_driver *reg, struct uart_port *port);
 #define uart_circ_chars_free(circ)	\
 	(CIRC_SPACE((circ)->head, (circ)->tail, UART_XMIT_SIZE))

-#define uart_tx_stopped(portp)		\
-	((portp)->info->port.tty->stopped || (portp)->info->port.tty->hw_stopped)
+static inline int uart_tx_stopped(struct uart_port *port)
+{
+	struct tty_struct *tty = port->info->port.tty;
+	if(tty->stopped || tty->hw_stopped)
+		return 1;
+	return 0;
+}

 /*
 * The following are helper functions for the low level drivers.
@@ -451,7 +462,7 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 #ifdef SUPPORT_SYSRQ
 	if (port->sysrq) {
 		if (ch && time_before(jiffies, port->sysrq)) {
-			handle_sysrq(ch, port->info ? port->info->port.tty : NULL);
+			handle_sysrq(ch, port->info->port.tty);
 			port->sysrq = 0;
 			return 1;
 		}
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -180,8 +180,17 @@ struct signal_struct;
 * until a hangup so don't use the wrong path.
 */

+struct tty_port;
+
+struct tty_port_operations {
+	/* Return 1 if the carrier is raised */
+	int (*carrier_raised)(struct tty_port *port);
+	void (*raise_dtr_rts)(struct tty_port *port);
+};
+	
 struct tty_port {
 	struct tty_struct	*tty;		/* Back pointer */
+	const struct tty_port_operations *ops;	/* Port operations */
 	spinlock_t		lock;		/* Lock protecting tty field */
 	int			blocked_open;	/* Waiting to open */
 	int			count;		/* Usage count */
@@ -253,6 +262,7 @@ struct tty_struct {
 	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;
@@ -262,11 +272,16 @@ struct tty_struct {
 	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;
@@ -295,6 +310,7 @@ struct tty_struct {
 #define TTY_PUSH 		6	/* n_tty private */
 #define TTY_CLOSING 		7	/* ->close() in progress */
 #define TTY_LDISC 		9	/* Line discipline attached */
+#define TTY_LDISC_CHANGING 	10	/* Line discipline changing */
 #define TTY_HW_COOK_OUT 	14	/* Hardware can do output cooking */
 #define TTY_HW_COOK_IN 		15	/* Hardware can do input cooking */
 #define TTY_PTY_LOCK 		16	/* pty private */
@@ -354,8 +370,7 @@ extern int tty_write_room(struct tty_struct *tty);
 extern void tty_driver_flush_buffer(struct tty_struct *tty);
 extern void tty_throttle(struct tty_struct *tty);
 extern void tty_unthrottle(struct tty_struct *tty);
-extern int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty,
-						struct winsize *ws);
+extern int tty_do_resize(struct tty_struct *tty, struct winsize *ws);
 extern void tty_shutdown(struct tty_struct *tty);
 extern void tty_free_termios(struct tty_struct *tty);
 extern int is_current_pgrp_orphaned(void);
@@ -421,6 +436,14 @@ extern int tty_port_alloc_xmit_buf(struct tty_port *port);
 extern void tty_port_free_xmit_buf(struct tty_port *port);
 extern struct tty_struct *tty_port_tty_get(struct tty_port *port);
 extern void tty_port_tty_set(struct tty_port *port, struct tty_struct *tty);
+extern int tty_port_carrier_raised(struct tty_port *port);
+extern void tty_port_raise_dtr_rts(struct tty_port *port);
+extern void tty_port_hangup(struct tty_port *port);
+extern int tty_port_block_til_ready(struct tty_port *port,
+				struct tty_struct *tty, struct file *filp);
+extern int tty_port_close_start(struct tty_port *port,
+				struct tty_struct *tty, struct file *filp);
+extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty);

 extern int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc);
 extern int tty_unregister_ldisc(int disc);
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -196,8 +196,7 @@
 *	Optional: If not provided then the write method is called under
 *	the atomic write lock to keep it serialized with the ldisc.
 *
- * int (*resize)(struct tty_struct *tty, struct tty_struct *real_tty,
- *				unsigned int rows, unsigned int cols);
+ * int (*resize)(struct tty_struct *tty, struct winsize *ws)
 *
 *	Called when a termios request is issued which changes the
 *	requested terminal geometry.
@@ -258,8 +257,7 @@ struct tty_operations {
 	int (*tiocmget)(struct tty_struct *tty, struct file *file);
 	int (*tiocmset)(struct tty_struct *tty, struct file *file,
 			unsigned int set, unsigned int clear);
-	int (*resize)(struct tty_struct *tty, struct tty_struct *real_tty,
-				struct winsize *ws);
+	int (*resize)(struct tty_struct *tty, struct winsize *ws);
 	int (*set_termiox)(struct tty_struct *tty, struct termiox *tnew);
 #ifdef CONFIG_CONSOLE_POLL
 	int (*poll_init)(struct tty_driver *driver, int line, char *options);