Char: mxser, remove it

(Old) mxser is obsoleted by mxser_new and scheduled for removal on Dec 2007.
Remove it by renaming mxser_new to mxser.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1728 insertions, 2140 deletions

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 35ff7a24554..dd1b0ab4b31 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1,41 +1,24 @@
 /*
  *          mxser.c  -- MOXA Smartio/Industio family multiport serial driver.
  *
- *      Copyright (C) 1999-2001  Moxa Technologies (support@moxa.com.tw).
+ *      Copyright (C) 1999-2006  Moxa Technologies (support@moxa.com.tw).
+ *	Copyright (C) 2006-2007  Jiri Slaby <jirislaby@gmail.com>
  *
- *      This code is loosely based on the Linux serial driver, written by
- *      Linus Torvalds, Theodore T'so and others.
+ *      This code is loosely based on the 1.8 moxa driver which is based on
+ *	Linux serial driver, written by Linus Torvalds, Theodore T'so and
+ *	others.
  *
  *      This program is free software; you can redistribute it and/or modify
  *      it under the terms of the GNU General Public License as published by
  *      the Free Software Foundation; either version 2 of the License, or
  *      (at your option) any later version.
  *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
- *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *	Original release	10/26/00
- *
- *	02/06/01	Support MOXA Industio family boards.
- *	02/06/01	Support TIOCGICOUNT.
- *	02/06/01	Fix the problem for connecting to serial mouse.
- *	02/06/01	Fix the problem for H/W flow control.
- *	02/06/01	Fix the compling warning when CONFIG_PCI
- *			don't be defined.
- *
  *	Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox
  *	<alan@redhat.com>. The original 1.8 code is available on www.moxa.com.
  *	- Fixed x86_64 cleanness
  *	- Fixed sleep with spinlock held in mxser_send_break
  */
 
-
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/signal.h>
@@ -64,30 +47,36 @@
 
 #include "mxser.h"
 
-#define	MXSER_VERSION	"1.8"
+#define	MXSER_VERSION	"2.0.2"		/* 1.10 */
 #define	MXSERMAJOR	 174
 #define	MXSERCUMAJOR	 175
 
-#define	MXSER_EVENT_TXLOW	1
-#define	MXSER_EVENT_HANGUP	2
-
 #define MXSER_BOARDS		4	/* Max. boards */
-#define MXSER_PORTS		32	/* Max. ports */
 #define MXSER_PORTS_PER_BOARD	8	/* Max. ports per board */
-#define MXSER_ISR_PASS_LIMIT	256
+#define MXSER_PORTS		(MXSER_BOARDS * MXSER_PORTS_PER_BOARD)
+#define MXSER_ISR_PASS_LIMIT	100
 
 #define	MXSER_ERR_IOADDR	-1
 #define	MXSER_ERR_IRQ		-2
 #define	MXSER_ERR_IRQ_CONFLIT	-3
 #define	MXSER_ERR_VECTOR	-4
 
+/*CheckIsMoxaMust return value*/
+#define MOXA_OTHER_UART		0x00
+#define MOXA_MUST_MU150_HWID	0x01
+#define MOXA_MUST_MU860_HWID	0x02
+
 #define WAKEUP_CHARS		256
 
 #define UART_MCR_AFE		0x20
 #define UART_LSR_SPECIAL	0x1E
 
+#define PCI_DEVICE_ID_CB108	0x1080
+#define PCI_DEVICE_ID_CB114	0x1142
+#define PCI_DEVICE_ID_CB134I	0x1341
+#define PCI_DEVICE_ID_CP138U	0x1380
+#define PCI_DEVICE_ID_POS104UL	0x1044
 
-#define IRQ_T(info) ((info->flags & ASYNC_SHARE_IRQ) ? IRQF_SHARED : IRQF_DISABLED)
 
 #define C168_ASIC_ID    1
 #define C104_ASIC_ID    2
@@ -96,88 +85,11 @@
 #define CI134_ASIC_ID	3
 #define CI104J_ASIC_ID  5
 
-enum {
-	MXSER_BOARD_C168_ISA = 1,
-	MXSER_BOARD_C104_ISA,
-	MXSER_BOARD_CI104J,
-	MXSER_BOARD_C168_PCI,
-	MXSER_BOARD_C104_PCI,
-	MXSER_BOARD_C102_ISA,
-	MXSER_BOARD_CI132,
-	MXSER_BOARD_CI134,
-	MXSER_BOARD_CP132,
-	MXSER_BOARD_CP114,
-	MXSER_BOARD_CT114,
-	MXSER_BOARD_CP102,
-	MXSER_BOARD_CP104U,
-	MXSER_BOARD_CP168U,
-	MXSER_BOARD_CP132U,
-	MXSER_BOARD_CP134U,
-	MXSER_BOARD_CP104JU,
-	MXSER_BOARD_RC7000,
-	MXSER_BOARD_CP118U,
-	MXSER_BOARD_CP102UL,
-	MXSER_BOARD_CP102U,
-};
-
-static char *mxser_brdname[] = {
-	"C168 series",
-	"C104 series",
-	"CI-104J series",
-	"C168H/PCI series",
-	"C104H/PCI series",
-	"C102 series",
-	"CI-132 series",
-	"CI-134 series",
-	"CP-132 series",
-	"CP-114 series",
-	"CT-114 series",
-	"CP-102 series",
-	"CP-104U series",
-	"CP-168U series",
-	"CP-132U series",
-	"CP-134U series",
-	"CP-104JU series",
-	"Moxa UC7000 Serial",
-	"CP-118U series",
-	"CP-102UL series",
-	"CP-102U series",
-};
-
-static int mxser_numports[] = {
-	8,			/* C168-ISA */
-	4,			/* C104-ISA */
-	4,			/* CI104J */
-	8,			/* C168-PCI */
-	4,			/* C104-PCI */
-	2,			/* C102-ISA */
-	2,			/* CI132 */
-	4,			/* CI134 */
-	2,			/* CP132 */
-	4,			/* CP114 */
-	4,			/* CT114 */
-	2,			/* CP102 */
-	4,			/* CP104U */
-	8,			/* CP168U */
-	2,			/* CP132U */
-	4,			/* CP134U */
-	4,			/* CP104JU */
-	8,			/* RC7000 */
-	8,			/* CP118U */
-	2,			/* CP102UL */
-	2,			/* CP102U */
-};
-
-#define UART_TYPE_NUM	2
-
-static const unsigned int Gmoxa_uart_id[UART_TYPE_NUM] = {
-	MOXA_MUST_MU150_HWID,
-	MOXA_MUST_MU860_HWID
-};
+#define MXSER_HIGHBAUD	1
+#define MXSER_HAS2	2
 
 /* This is only for PCI */
-#define UART_INFO_NUM	3
-struct mxpciuart_info {
+static const struct {
 	int type;
 	int tx_fifo;
 	int rx_fifo;
@@ -186,51 +98,83 @@ struct mxpciuart_info {
 	int rx_trigger;
 	int rx_low_water;
 	long max_baud;
-};
-
-static const struct mxpciuart_info Gpci_uart_info[UART_INFO_NUM] = {
+} Gpci_uart_info[] = {
 	{MOXA_OTHER_UART, 16, 16, 16, 14, 14, 1, 921600L},
 	{MOXA_MUST_MU150_HWID, 64, 64, 64, 48, 48, 16, 230400L},
 	{MOXA_MUST_MU860_HWID, 128, 128, 128, 96, 96, 32, 921600L}
 };
+#define UART_INFO_NUM	ARRAY_SIZE(Gpci_uart_info)
 
+struct mxser_cardinfo {
+	char *name;
+	unsigned int nports;
+	unsigned int flags;
+};
 
-#ifdef CONFIG_PCI
+static const struct mxser_cardinfo mxser_cards[] = {
+/* 0*/	{ "C168 series",	8, },
+	{ "C104 series",	4, },
+	{ "CI-104J series",	4, },
+	{ "C168H/PCI series",	8, },
+	{ "C104H/PCI series",	4, },
+/* 5*/	{ "C102 series",	4, MXSER_HAS2 },	/* C102-ISA */
+	{ "CI-132 series",	4, MXSER_HAS2 },
+	{ "CI-134 series",	4, },
+	{ "CP-132 series",	2, },
+	{ "CP-114 series",	4, },
+/*10*/	{ "CT-114 series",	4, },
+	{ "CP-102 series",	2, MXSER_HIGHBAUD },
+	{ "CP-104U series",	4, },
+	{ "CP-168U series",	8, },
+	{ "CP-132U series",	2, },
+/*15*/	{ "CP-134U series",	4, },
+	{ "CP-104JU series",	4, },
+	{ "Moxa UC7000 Serial",	8, },		/* RC7000 */
+	{ "CP-118U series",	8, },
+	{ "CP-102UL series",	2, },
+/*20*/	{ "CP-102U series",	2, },
+	{ "CP-118EL series",	8, },
+	{ "CP-168EL series",	8, },
+	{ "CP-104EL series",	4, },
+	{ "CB-108 series",	8, },
+/*25*/	{ "CB-114 series",	4, },
+	{ "CB-134I series",	4, },
+	{ "CP-138U series",	8, },
+	{ "POS-104UL series",	4, }
+};
 
+/* driver_data correspond to the lines in the structure above
+   see also ISA probe function before you change something */
 static struct pci_device_id mxser_pcibrds[] = {
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C168, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_C168_PCI},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_C104_PCI},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP132},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP114},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CT114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CT114},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP104U},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP168U},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP132U},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP134U},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104JU, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP104JU},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_RC7000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_RC7000},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP118U},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102UL, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102UL},
-	{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102U},
-	{0}
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C168),	.driver_data = 3 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C104),	.driver_data = 4 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132),	.driver_data = 8 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP114),	.driver_data = 9 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CT114),	.driver_data = 10 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102),	.driver_data = 11 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104U),	.driver_data = 12 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168U),	.driver_data = 13 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132U),	.driver_data = 14 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP134U),	.driver_data = 15 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104JU),.driver_data = 16 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_RC7000),	.driver_data = 17 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118U),	.driver_data = 18 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102UL),.driver_data = 19 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102U),	.driver_data = 20 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118EL),.driver_data = 21 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168EL),.driver_data = 22 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104EL),.driver_data = 23 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB108),	.driver_data = 24 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB114),	.driver_data = 25 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB134I),	.driver_data = 26 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP138U),	.driver_data = 27 },
+	{ PCI_VDEVICE(MOXA, PCI_DEVICE_ID_POS104UL),	.driver_data = 28 },
+	{ }
 };
-
 MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
 
-
-#endif
-
-typedef struct _moxa_pci_info {
-	unsigned short busNum;
-	unsigned short devNum;
-	struct pci_dev *pdev;	/* add by Victor Yu. 06-23-2003 */
-} moxa_pci_info;
-
 static int ioaddr[MXSER_BOARDS] = { 0, 0, 0, 0 };
 static int ttymajor = MXSERMAJOR;
-static int calloutmajor = MXSERCUMAJOR;
-static int verbose = 0;
 
 /* Variables for insmod */
 
@@ -238,8 +182,6 @@ MODULE_AUTHOR("Casper Yang");
 MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver");
 module_param_array(ioaddr, int, NULL, 0);
 module_param(ttymajor, int, 0);
-module_param(calloutmajor, int, 0);
-module_param(verbose, bool, 0);
 MODULE_LICENSE("GPL");
 
 struct mxser_log {
@@ -274,67 +216,69 @@ struct mxser_mon_ext {
 	int iftype[32];
 };
 
-struct mxser_hwconf {
-	int board_type;
-	int ports;
-	int irq;
-	int vector;
-	int vector_mask;
-	int uart_type;
-	int ioaddr[MXSER_PORTS_PER_BOARD];
-	int baud_base[MXSER_PORTS_PER_BOARD];
-	moxa_pci_info pciInfo;
-	int IsMoxaMustChipFlag;	/* add by Victor Yu. 08-30-2002 */
-	int MaxCanSetBaudRate[MXSER_PORTS_PER_BOARD];	/* add by Victor Yu. 09-04-2002 */
-	int opmode_ioaddr[MXSER_PORTS_PER_BOARD];	/* add by Victor Yu. 01-05-2004 */
-};
+struct mxser_board;
+
+struct mxser_port {
+	struct mxser_board *board;
+	struct tty_struct *tty;
+
+	unsigned long ioaddr;
+	unsigned long opmode_ioaddr;
+	int max_baud;
 
-struct mxser_struct {
-	int port;
-	int base;		/* port base address */
-	int irq;		/* port using irq no. */
-	int vector;		/* port irq vector */
-	int vectormask;		/* port vector mask */
 	int rx_high_water;
 	int rx_trigger;		/* Rx fifo trigger level */
 	int rx_low_water;
 	int baud_base;		/* max. speed */
-	int flags;		/* defined in tty.h */
 	int type;		/* UART type */
-	struct tty_struct *tty;
-	int read_status_mask;
-	int ignore_status_mask;
-	int xmit_fifo_size;
-	int custom_divisor;
+	int flags;		/* defined in tty.h */
+
 	int x_char;		/* xon/xoff character */
-	int close_delay;
-	unsigned short closing_wait;
 	int IER;		/* Interrupt Enable Register */
 	int MCR;		/* Modem control register */
+
+	unsigned char stop_rx;
+	unsigned char ldisc_stop_rx;
+
+	int custom_divisor;
+	int close_delay;
+	unsigned short closing_wait;
+	unsigned char err_shadow;
 	unsigned long event;
+
 	int count;		/* # of fd on device */
 	int blocked_open;	/* # of blocked opens */
+	struct async_icount icount; /* kernel counters for 4 input interrupts */
+	int timeout;
+
+	int read_status_mask;
+	int ignore_status_mask;
+	int xmit_fifo_size;
 	unsigned char *xmit_buf;
 	int xmit_head;
 	int xmit_tail;
 	int xmit_cnt;
-	struct work_struct tqueue;
+
 	struct ktermios normal_termios;
-	struct ktermios callout_termios;
-	wait_queue_head_t open_wait;
-	wait_queue_head_t close_wait;
-	wait_queue_head_t delta_msr_wait;
-	struct async_icount icount;	/* kernel counters for the 4 input interrupts */
-	int timeout;
-	int IsMoxaMustChipFlag;	/* add by Victor Yu. 08-30-2002 */
-	int MaxCanSetBaudRate;	/* add by Victor Yu. 09-04-2002 */
-	int opmode_ioaddr;	/* add by Victor Yu. 01-05-2004 */
-	unsigned char stop_rx;
-	unsigned char ldisc_stop_rx;
-	long realbaud;
+
 	struct mxser_mon mon_data;
-	unsigned char err_shadow;
+
 	spinlock_t slock;
+	wait_queue_head_t open_wait;
+	wait_queue_head_t delta_msr_wait;
+};
+
+struct mxser_board {
+	unsigned int idx;
+	int irq;
+	const struct mxser_cardinfo *info;
+	unsigned long vector;
+	unsigned long vector_mask;
+
+	int chip_flag;
+	int uart_type;
+
+	struct mxser_port ports[MXSER_PORTS_PER_BOARD];
 };
 
 struct mxser_mstatus {
@@ -352,73 +296,16 @@ static int mxserBoardCAP[MXSER_BOARDS] = {
 	/*  0x180, 0x280, 0x200, 0x320 */
 };
 
+static struct mxser_board mxser_boards[MXSER_BOARDS];
 static struct tty_driver *mxvar_sdriver;
-static struct mxser_struct mxvar_table[MXSER_PORTS];
-static struct tty_struct *mxvar_tty[MXSER_PORTS + 1];
-static struct ktermios *mxvar_termios[MXSER_PORTS + 1];
-static struct ktermios *mxvar_termios_locked[MXSER_PORTS + 1];
 static struct mxser_log mxvar_log;
 static int mxvar_diagflag;
 static unsigned char mxser_msr[MXSER_PORTS + 1];
 static struct mxser_mon_ext mon_data_ext;
 static int mxser_set_baud_method[MXSER_PORTS + 1];
-static spinlock_t gm_lock;
-
-/*
- * This is used to figure out the divisor speeds and the timeouts
- */
-
-static struct mxser_hwconf mxsercfg[MXSER_BOARDS];
-
-/*
- * static functions:
- */
-
-static void mxser_getcfg(int board, struct mxser_hwconf *hwconf);
-static int mxser_init(void);
-
-/* static void   mxser_poll(unsigned long); */
-static int mxser_get_ISA_conf(int, struct mxser_hwconf *);
-static void mxser_do_softint(struct work_struct *);
-static int mxser_open(struct tty_struct *, struct file *);
-static void mxser_close(struct tty_struct *, struct file *);
-static int mxser_write(struct tty_struct *, const unsigned char *, int);
-static int mxser_write_room(struct tty_struct *);
-static void mxser_flush_buffer(struct tty_struct *);
-static int mxser_chars_in_buffer(struct tty_struct *);
-static void mxser_flush_chars(struct tty_struct *);
-static void mxser_put_char(struct tty_struct *, unsigned char);
-static int mxser_ioctl(struct tty_struct *, struct file *, uint, ulong);
-static int mxser_ioctl_special(unsigned int, void __user *);
-static void mxser_throttle(struct tty_struct *);
-static void mxser_unthrottle(struct tty_struct *);
-static void mxser_set_termios(struct tty_struct *, struct ktermios *);
-static void mxser_stop(struct tty_struct *);
-static void mxser_start(struct tty_struct *);
-static void mxser_hangup(struct tty_struct *);
-static void mxser_rs_break(struct tty_struct *, int);
-static irqreturn_t mxser_interrupt(int, void *);
-static void mxser_receive_chars(struct mxser_struct *, int *);
-static void mxser_transmit_chars(struct mxser_struct *);
-static void mxser_check_modem_status(struct mxser_struct *, int);
-static int mxser_block_til_ready(struct tty_struct *, struct file *, struct mxser_struct *);
-static int mxser_startup(struct mxser_struct *);
-static void mxser_shutdown(struct mxser_struct *);
-static int mxser_change_speed(struct mxser_struct *, struct ktermios *old_termios);
-static int mxser_get_serial_info(struct mxser_struct *, struct serial_struct __user *);
-static int mxser_set_serial_info(struct mxser_struct *, struct serial_struct __user *);
-static int mxser_get_lsr_info(struct mxser_struct *, unsigned int __user *);
-static void mxser_send_break(struct mxser_struct *, int);
-static int mxser_tiocmget(struct tty_struct *, struct file *);
-static int mxser_tiocmset(struct tty_struct *, struct file *, unsigned int, unsigned int);
-static int mxser_set_baud(struct mxser_struct *info, long newspd);
-static void mxser_wait_until_sent(struct tty_struct *tty, int timeout);
-
-static void mxser_startrx(struct tty_struct *tty);
-static void mxser_stoprx(struct tty_struct *tty);
 
 #ifdef CONFIG_PCI
-static int CheckIsMoxaMust(int io)
+static int __devinit CheckIsMoxaMust(unsigned long io)
 {
 	u8 oldmcr, hwid;
 	int i;
@@ -434,90 +321,15 @@ static int CheckIsMoxaMust(int io)
 	}
 
 	GET_MOXA_MUST_HARDWARE_ID(io, &hwid);
-	for (i = 0; i < UART_TYPE_NUM; i++) {
-		if (hwid == Gmoxa_uart_id[i])
+	for (i = 1; i < UART_INFO_NUM; i++) { /* 0 = OTHER_UART */
+		if (hwid == Gpci_uart_info[i].type)
 			return (int)hwid;
 	}
 	return MOXA_OTHER_UART;
 }
 #endif
 
-/* above is modified by Victor Yu. 08-15-2002 */
-
-static const struct tty_operations mxser_ops = {
-	.open = mxser_open,
-	.close = mxser_close,
-	.write = mxser_write,
-	.put_char = mxser_put_char,
-	.flush_chars = mxser_flush_chars,
-	.write_room = mxser_write_room,
-	.chars_in_buffer = mxser_chars_in_buffer,
-	.flush_buffer = mxser_flush_buffer,
-	.ioctl = mxser_ioctl,
-	.throttle = mxser_throttle,
-	.unthrottle = mxser_unthrottle,
-	.set_termios = mxser_set_termios,
-	.stop = mxser_stop,
-	.start = mxser_start,
-	.hangup = mxser_hangup,
-	.break_ctl = mxser_rs_break,
-	.wait_until_sent = mxser_wait_until_sent,
-	.tiocmget = mxser_tiocmget,
-	.tiocmset = mxser_tiocmset,
-};
-
-/*
- * The MOXA Smartio/Industio serial driver boot-time initialization code!
- */
-
-static int __init mxser_module_init(void)
-{
-	int ret;
-
-	if (verbose)
-		printk(KERN_DEBUG "Loading module mxser ...\n");
-	ret = mxser_init();
-	if (verbose)
-		printk(KERN_DEBUG "Done.\n");
-	return ret;
-}
-
-static void __exit mxser_module_exit(void)
-{
-	int i, err;
-
-	if (verbose)
-		printk(KERN_DEBUG "Unloading module mxser ...\n");
-
-	err = tty_unregister_driver(mxvar_sdriver);
-	if (!err)
-		put_tty_driver(mxvar_sdriver);
-	else
-		printk(KERN_ERR "Couldn't unregister MOXA Smartio/Industio family serial driver\n");
-
-	for (i = 0; i < MXSER_BOARDS; i++) {
-		struct pci_dev *pdev;
-
-		if (mxsercfg[i].board_type == -1)
-			continue;
-		else {
-			pdev = mxsercfg[i].pciInfo.pdev;
-			free_irq(mxsercfg[i].irq, &mxvar_table[i * MXSER_PORTS_PER_BOARD]);
-			if (pdev != NULL) {	/* PCI */
-				release_region(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2));
-				release_region(pci_resource_start(pdev, 3), pci_resource_len(pdev, 3));
-				pci_dev_put(pdev);
-			} else {
-				release_region(mxsercfg[i].ioaddr[0], 8 * mxsercfg[i].ports);
-				release_region(mxsercfg[i].vector, 1);
-			}
-		}
-	}
-	if (verbose)
-		printk(KERN_DEBUG "Done.\n");
-}
-
-static void process_txrx_fifo(struct mxser_struct *info)
+static void process_txrx_fifo(struct mxser_port *info)
 {
 	int i;
 
@@ -526,424 +338,548 @@ static void process_txrx_fifo(struct mxser_struct *info)
 		info->rx_high_water = 1;
 		info->rx_low_water = 1;
 		info->xmit_fifo_size = 1;
-	} else {
-		for (i = 0; i < UART_INFO_NUM; i++) {
-			if (info->IsMoxaMustChipFlag == Gpci_uart_info[i].type) {
+	} else
+		for (i = 0; i < UART_INFO_NUM; i++)
+			if (info->board->chip_flag == Gpci_uart_info[i].type) {
 				info->rx_trigger = Gpci_uart_info[i].rx_trigger;
 				info->rx_low_water = Gpci_uart_info[i].rx_low_water;
 				info->rx_high_water = Gpci_uart_info[i].rx_high_water;
 				info->xmit_fifo_size = Gpci_uart_info[i].xmit_fifo_size;
 				break;
 			}
-		}
-	}
 }
 
-static int mxser_initbrd(int board, struct mxser_hwconf *hwconf)
+static unsigned char mxser_get_msr(int baseaddr, int mode, int port)
 {
-	struct mxser_struct *info;
-	int retval;
-	int i, n;
+	unsigned char status = 0;
 
-	n = board * MXSER_PORTS_PER_BOARD;
-	info = &mxvar_table[n];
-	/*if (verbose) */  {
-		printk(KERN_DEBUG "        ttyMI%d - ttyMI%d ",
-			n, n + hwconf->ports - 1);
-		printk(" max. baud rate = %d bps.\n",
-			hwconf->MaxCanSetBaudRate[0]);
-	}
-
-	for (i = 0; i < hwconf->ports; i++, n++, info++) {
-		info->port = n;
-		info->base = hwconf->ioaddr[i];
-		info->irq = hwconf->irq;
-		info->vector = hwconf->vector;
-		info->vectormask = hwconf->vector_mask;
-		info->opmode_ioaddr = hwconf->opmode_ioaddr[i];	/* add by Victor Yu. 01-05-2004 */
-		info->stop_rx = 0;
-		info->ldisc_stop_rx = 0;
+	status = inb(baseaddr + UART_MSR);
 
-		info->IsMoxaMustChipFlag = hwconf->IsMoxaMustChipFlag;
-		/* Enhance mode enabled here */
-		if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) {
-			ENABLE_MOXA_MUST_ENCHANCE_MODE(info->base);
-		}
+	mxser_msr[port] &= 0x0F;
+	mxser_msr[port] |= status;
+	status = mxser_msr[port];
+	if (mode)
+		mxser_msr[port] = 0;
 
-		info->flags = ASYNC_SHARE_IRQ;
-		info->type = hwconf->uart_type;
-		info->baud_base = hwconf->baud_base[i];
+	return status;
+}
 
-		info->MaxCanSetBaudRate = hwconf->MaxCanSetBaudRate[i];
+static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
+		struct mxser_port *port)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	int retval;
+	int do_clocal = 0;
+	unsigned long flags;
 
-		process_txrx_fifo(info);
+	/*
+	 * If non-blocking mode is set, or the port is not enabled,
+	 * then make the check up front and then exit.
+	 */
+	if ((filp->f_flags & O_NONBLOCK) ||
+			test_bit(TTY_IO_ERROR, &tty->flags)) {
+		port->flags |= ASYNC_NORMAL_ACTIVE;
+		return 0;
+	}
 
+	if (tty->termios->c_cflag & CLOCAL)
+		do_clocal = 1;
 
-		info->custom_divisor = hwconf->baud_base[i] * 16;
-		info->close_delay = 5 * HZ / 10;
-		info->closing_wait = 30 * HZ;
-		INIT_WORK(&info->tqueue, mxser_do_softint);
-		info->normal_termios = mxvar_sdriver->init_termios;
-		init_waitqueue_head(&info->open_wait);
-		init_waitqueue_head(&info->close_wait);
-		init_waitqueue_head(&info->delta_msr_wait);
-		memset(&info->mon_data, 0, sizeof(struct mxser_mon));
-		info->err_shadow = 0;
-		spin_lock_init(&info->slock);
-	}
 	/*
-	 * Allocate the IRQ if necessary
+	 * Block waiting for the carrier detect and the line to become
+	 * free (i.e., not in use by the callout).  While we are in
+	 * this loop, port->count is dropped by one, so that
+	 * mxser_close() knows when to free things.  We restore it upon
+	 * exit, either normal or abnormal.
 	 */
+	retval = 0;
+	add_wait_queue(&port->open_wait, &wait);
 
-
-	/* before set INT ISR, disable all int */
-	for (i = 0; i < hwconf->ports; i++) {
-		outb(inb(hwconf->ioaddr[i] + UART_IER) & 0xf0,
-			hwconf->ioaddr[i] + UART_IER);
+	spin_lock_irqsave(&port->slock, flags);
+	if (!tty_hung_up_p(filp))
+		port->count--;
+	spin_unlock_irqrestore(&port->slock, flags);
+	port->blocked_open++;
+	while (1) {
+		spin_lock_irqsave(&port->slock, flags);
+		outb(inb(port->ioaddr + UART_MCR) |
+			UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR);
+		spin_unlock_irqrestore(&port->slock, flags);
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
+			if (port->flags & ASYNC_HUP_NOTIFY)
+				retval = -EAGAIN;
+			else
+				retval = -ERESTARTSYS;
+			break;
+		}
+		if (!(port->flags & ASYNC_CLOSING) &&
+				(do_clocal ||
+				(inb(port->ioaddr + UART_MSR) & UART_MSR_DCD)))
+			break;
+		if (signal_pending(current)) {
+			retval = -ERESTARTSYS;
+			break;
+		}
+		schedule();
 	}
-
-	n = board * MXSER_PORTS_PER_BOARD;
-	info = &mxvar_table[n];
-
-	retval = request_irq(hwconf->irq, mxser_interrupt, IRQ_T(info),
-				"mxser", info);
-	if (retval) {
-		printk(KERN_ERR "Board %d: %s",
-			board, mxser_brdname[hwconf->board_type - 1]);
-		printk("  Request irq failed, IRQ (%d) may conflict with"
-			" another device.\n", info->irq);
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&port->open_wait, &wait);
+	if (!tty_hung_up_p(filp))
+		port->count++;
+	port->blocked_open--;
+	if (retval)
 		return retval;
-	}
+	port->flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }
 
-static void mxser_getcfg(int board, struct mxser_hwconf *hwconf)
+static int mxser_set_baud(struct mxser_port *info, long newspd)
 {
-	mxsercfg[board] = *hwconf;
-}
+	int quot = 0, baud;
+	unsigned char cval;
 
-#ifdef CONFIG_PCI
-static int mxser_get_PCI_conf(int busnum, int devnum, int board_type, struct mxser_hwconf *hwconf)
-{
-	int i, j;
-	/* unsigned int val; */
-	unsigned int ioaddress;
-	struct pci_dev *pdev = hwconf->pciInfo.pdev;
+	if (!info->tty || !info->tty->termios)
+		return -1;
 
-	/* io address */
-	hwconf->board_type = board_type;
-	hwconf->ports = mxser_numports[board_type - 1];
-	ioaddress = pci_resource_start(pdev, 2);
-	request_region(pci_resource_start(pdev, 2), pci_resource_len(pdev, 2),
-			"mxser(IO)");
+	if (!(info->ioaddr))
+		return -1;
 
-	for (i = 0; i < hwconf->ports; i++)
-		hwconf->ioaddr[i] = ioaddress + 8 * i;
+	if (newspd > info->max_baud)
+		return -1;
 
-	/* vector */
-	ioaddress = pci_resource_start(pdev, 3);
-	request_region(pci_resource_start(pdev, 3), pci_resource_len(pdev, 3),
-			"mxser(vector)");
-	hwconf->vector = ioaddress;
+	if (newspd == 134) {
+		quot = 2 * info->baud_base / 269;
+		tty_encode_baud_rate(info->tty, 134, 134);
+	} else if (newspd) {
+		quot = info->baud_base / newspd;
+		if (quot == 0)
+			quot = 1;
+		baud = info->baud_base/quot;
+		tty_encode_baud_rate(info->tty, baud, baud);
+	} else {
+		quot = 0;
+	}
 
-	/* irq */
-	hwconf->irq = hwconf->pciInfo.pdev->irq;
+	info->timeout = ((info->xmit_fifo_size * HZ * 10 * quot) / info->baud_base);
+	info->timeout += HZ / 50;	/* Add .02 seconds of slop */
 
-	hwconf->IsMoxaMustChipFlag = CheckIsMoxaMust(hwconf->ioaddr[0]);
-	hwconf->uart_type = PORT_16550A;
-	hwconf->vector_mask = 0;
+	if (quot) {
+		info->MCR |= UART_MCR_DTR;
+		outb(info->MCR, info->ioaddr + UART_MCR);
+	} else {
+		info->MCR &= ~UART_MCR_DTR;
+		outb(info->MCR, info->ioaddr + UART_MCR);
+		return 0;
+	}
 
+	cval = inb(info->ioaddr + UART_LCR);
 
-	for (i = 0; i < hwconf->ports; i++) {
-		for (j = 0; j < UART_INFO_NUM; j++) {
-			if (Gpci_uart_info[j].type == hwconf->IsMoxaMustChipFlag) {
-				hwconf->MaxCanSetBaudRate[i] = Gpci_uart_info[j].max_baud;
+	outb(cval | UART_LCR_DLAB, info->ioaddr + UART_LCR);	/* set DLAB */
 
-				/* exception....CP-102 */
-				if (board_type == MXSER_BOARD_CP102)
-					hwconf->MaxCanSetBaudRate[i] = 921600;
-				break;
-			}
-		}
-	}
+	outb(quot & 0xff, info->ioaddr + UART_DLL);	/* LS of divisor */
+	outb(quot >> 8, info->ioaddr + UART_DLM);	/* MS of divisor */
+	outb(cval, info->ioaddr + UART_LCR);	/* reset DLAB */
 
-	if (hwconf->IsMoxaMustChipFlag == MOXA_MUST_MU860_HWID) {
-		for (i = 0; i < hwconf->ports; i++) {
-			if (i < 4)
-				hwconf->opmode_ioaddr[i] = ioaddress + 4;
-			else
-				hwconf->opmode_ioaddr[i] = ioaddress + 0x0c;
-		}
-		outb(0, ioaddress + 4);	/* default set to RS232 mode */
-		outb(0, ioaddress + 0x0c);	/* default set to RS232 mode */
-	}
+#ifdef BOTHER
+	if (C_BAUD(info->tty) == BOTHER) {
+		quot = info->baud_base % newspd;
+		quot *= 8;
+		if (quot % newspd > newspd / 2) {
+			quot /= newspd;
+			quot++;
+		} else
+			quot /= newspd;
+
+		SET_MOXA_MUST_ENUM_VALUE(info->ioaddr, quot);
+	} else
+#endif
+		SET_MOXA_MUST_ENUM_VALUE(info->ioaddr, 0);
 
-	for (i = 0; i < hwconf->ports; i++) {
-		hwconf->vector_mask |= (1 << i);
-		hwconf->baud_base[i] = 921600;
-	}
 	return 0;
 }
-#endif
 
-static int mxser_init(void)
+/*
+ * This routine is called to set the UART divisor registers to match
+ * the specified baud rate for a serial port.
+ */
+static int mxser_change_speed(struct mxser_port *info,
+		struct ktermios *old_termios)
 {
-	int i, m, retval, b, n;
-	struct pci_dev *pdev = NULL;
-	int index;
-	unsigned char busnum, devnum;
-	struct mxser_hwconf hwconf;
-
-	mxvar_sdriver = alloc_tty_driver(MXSER_PORTS + 1);
-	if (!mxvar_sdriver)
-		return -ENOMEM;
-	spin_lock_init(&gm_lock);
-
-	for (i = 0; i < MXSER_BOARDS; i++) {
-		mxsercfg[i].board_type = -1;
-	}
+	unsigned cflag, cval, fcr;
+	int ret = 0;
+	unsigned char status;
 
-	printk(KERN_INFO "MOXA Smartio/Industio family driver version %s\n",
-		MXSER_VERSION);
+	if (!info->tty || !info->tty->termios)
+		return ret;
+	cflag = info->tty->termios->c_cflag;
+	if (!(info->ioaddr))
+		return ret;
 
-	/* Initialize the tty_driver structure */
-	memset(mxvar_sdriver, 0, sizeof(struct tty_driver));
-	mxvar_sdriver->owner = THIS_MODULE;
-	mxvar_sdriver->magic = TTY_DRIVER_MAGIC;
-	mxvar_sdriver->name = "ttyMI";
-	mxvar_sdriver->major = ttymajor;
-	mxvar_sdriver->minor_start = 0;
-	mxvar_sdriver->num = MXSER_PORTS + 1;
-	mxvar_sdriver->type = TTY_DRIVER_TYPE_SERIAL;
-	mxvar_sdriver->subtype = SERIAL_TYPE_NORMAL;
-	mxvar_sdriver->init_termios = tty_std_termios;
-	mxvar_sdriver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
-	mxvar_sdriver->init_termios.c_ispeed = 9600;
-	mxvar_sdriver->init_termios.c_ospeed = 9600;
-	mxvar_sdriver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(mxvar_sdriver, &mxser_ops);
-	mxvar_sdriver->ttys = mxvar_tty;
-	mxvar_sdriver->termios = mxvar_termios;
-	mxvar_sdriver->termios_locked = mxvar_termios_locked;
+	if (mxser_set_baud_method[info->tty->index] == 0)
+		mxser_set_baud(info, tty_get_baud_rate(info->tty));
 
-	mxvar_diagflag = 0;
-	memset(mxvar_table, 0, MXSER_PORTS * sizeof(struct mxser_struct));
-	memset(&mxvar_log, 0, sizeof(struct mxser_log));
+	/* byte size and parity */
+	switch (cflag & CSIZE) {
+	case CS5:
+		cval = 0x00;
+		break;
+	case CS6:
+		cval = 0x01;
+		break;
+	case CS7:
+		cval = 0x02;
+		break;
+	case CS8:
+		cval = 0x03;
+		break;
+	default:
+		cval = 0x00;
+		break;		/* too keep GCC shut... */
+	}
+	if (cflag & CSTOPB)
+		cval |= 0x04;
+	if (cflag & PARENB)
+		cval |= UART_LCR_PARITY;
+	if (!(cflag & PARODD))
+		cval |= UART_LCR_EPAR;
+	if (cflag & CMSPAR)
+		cval |= UART_LCR_SPAR;
 
-	memset(&mxser_msr, 0, sizeof(unsigned char) * (MXSER_PORTS + 1));
-	memset(&mon_data_ext, 0, sizeof(struct mxser_mon_ext));
-	memset(&mxser_set_baud_method, 0, sizeof(int) * (MXSER_PORTS + 1));
-	memset(&hwconf, 0, sizeof(struct mxser_hwconf));
+	if ((info->type == PORT_8250) || (info->type == PORT_16450)) {
+		if (info->board->chip_flag) {
+			fcr = UART_FCR_ENABLE_FIFO;
+			fcr |= MOXA_MUST_FCR_GDA_MODE_ENABLE;
+			SET_MOXA_MUST_FIFO_VALUE(info);
+		} else
+			fcr = 0;
+	} else {
+		fcr = UART_FCR_ENABLE_FIFO;
+		if (info->board->chip_flag) {
+			fcr |= MOXA_MUST_FCR_GDA_MODE_ENABLE;
+			SET_MOXA_MUST_FIFO_VALUE(info);
+		} else {
+			switch (info->rx_trigger) {
+			case 1:
+				fcr |= UART_FCR_TRIGGER_1;
+				break;
+			case 4:
+				fcr |= UART_FCR_TRIGGER_4;
+				break;
+			case 8:
+				fcr |= UART_FCR_TRIGGER_8;
+				break;
+			default:
+				fcr |= UART_FCR_TRIGGER_14;
+				break;
+			}
+		}
+	}
 
-	m = 0;
-	/* Start finding ISA boards here */
-	for (b = 0; b < MXSER_BOARDS && m < MXSER_BOARDS; b++) {
-		int cap;
-
-		if (!(cap = mxserBoardCAP[b]))
-			continue;
-
-		retval = mxser_get_ISA_conf(cap, &hwconf);
-
-		if (retval != 0)
-			printk(KERN_INFO "Found MOXA %s board (CAP=0x%x)\n",
-				mxser_brdname[hwconf.board_type - 1], ioaddr[b]);
-
-		if (retval <= 0) {
-			if (retval == MXSER_ERR_IRQ)
-				printk(KERN_ERR "Invalid interrupt number, "
-					"board not configured\n");
-			else if (retval == MXSER_ERR_IRQ_CONFLIT)
-				printk(KERN_ERR "Invalid interrupt number, "
-					"board not configured\n");
-			else if (retval == MXSER_ERR_VECTOR)
-				printk(KERN_ERR "Invalid interrupt vector, "
-					"board not configured\n");
-			else if (retval == MXSER_ERR_IOADDR)
-				printk(KERN_ERR "Invalid I/O address, "
-					"board not configured\n");
-
-			continue;
+	/* CTS flow control flag and modem status interrupts */
+	info->IER &= ~UART_IER_MSI;
+	info->MCR &= ~UART_MCR_AFE;
+	if (cflag & CRTSCTS) {
+		info->flags |= ASYNC_CTS_FLOW;
+		info->IER |= UART_IER_MSI;
+		if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
+			info->MCR |= UART_MCR_AFE;
+		} else {
+			status = inb(info->ioaddr + UART_MSR);
+			if (info->tty->hw_stopped) {
+				if (status & UART_MSR_CTS) {
+					info->tty->hw_stopped = 0;
+					if (info->type != PORT_16550A &&
+							!info->board->chip_flag) {
+						outb(info->IER & ~UART_IER_THRI,
+							info->ioaddr +
+							UART_IER);
+						info->IER |= UART_IER_THRI;
+						outb(info->IER, info->ioaddr +
+								UART_IER);
+					}
+					tty_wakeup(info->tty);
+				}
+			} else {
+				if (!(status & UART_MSR_CTS)) {
+					info->tty->hw_stopped = 1;
+					if ((info->type != PORT_16550A) &&
+							(!info->board->chip_flag)) {
+						info->IER &= ~UART_IER_THRI;
+						outb(info->IER, info->ioaddr +
+								UART_IER);
+					}
+				}
+			}
 		}
+	} else {
+		info->flags &= ~ASYNC_CTS_FLOW;
+	}
+	outb(info->MCR, info->ioaddr + UART_MCR);
+	if (cflag & CLOCAL) {
+		info->flags &= ~ASYNC_CHECK_CD;
+	} else {
+		info->flags |= ASYNC_CHECK_CD;
+		info->IER |= UART_IER_MSI;
+	}
+	outb(info->IER, info->ioaddr + UART_IER);
+
+	/*
+	 * Set up parity check flag
+	 */
+	info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
+	if (I_INPCK(info->tty))
+		info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
+	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+		info->read_sta