From 3306ce3d0554e2e59cc429b7133e17e1513307cb Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Fri, 8 Dec 2006 02:38:13 -0800 Subject: [PATCH] [PATCH] Char: mxser_new, upgrade to 1.9.1 Change cloned experimental driver according to original 1.9.1 moxa driver. Some int->ulong conversions, outb ~UART_IER_THRI constant. Remove commented stuff. I also added printk line with info, if somebody wants to test it, he may contact me as I can potentially debug the driver with him or just to confirm it works properly. Signed-off-by: Jiri Slaby Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/mxser_new.c | 396 +++++++++++++++++++-------------------- include/linux/pci_ids.h | 3 + 2 files changed, 195 insertions(+), 204 deletions(-) diff --git a/drivers/char/mxser_new.c b/drivers/char/mxser_new.c index 993e3a26c4..befff0548d 100644 --- a/drivers/char/mxser_new.c +++ b/drivers/char/mxser_new.c @@ -1,7 +1,7 @@ /* * 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). * * This code is loosely based on the Linux serial driver, written by * Linus Torvalds, Theodore T'so and others. @@ -20,15 +20,6 @@ * 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 * . The original 1.8 code is available on www.moxa.com. * - Fixed x86_64 cleanness @@ -66,7 +57,7 @@ #include "mxser_new.h" -#define MXSER_VERSION "1.8" +#define MXSER_VERSION "1.9.1" #define MXSERMAJOR 174 #define MXSERCUMAJOR 175 @@ -76,7 +67,7 @@ #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_ISR_PASS_LIMIT 99999L #define MXSER_ERR_IOADDR -1 #define MXSER_ERR_IRQ -2 @@ -125,6 +116,9 @@ enum { MXSER_BOARD_CP118U, MXSER_BOARD_CP102UL, MXSER_BOARD_CP102U, + MXSER_BOARD_CP118EL, + MXSER_BOARD_CP168EL, + MXSER_BOARD_CP104EL }; static char *mxser_brdname[] = { @@ -149,6 +143,9 @@ static char *mxser_brdname[] = { "CP-118U series", "CP-102UL series", "CP-102U series", + "CP-118EL series", + "CP-168EL series", + "CP-104EL series" }; static int mxser_numports[] = { @@ -173,6 +170,9 @@ static int mxser_numports[] = { 8, /* CP118U */ 2, /* CP102UL */ 2, /* CP102U */ + 8, /* CP118EL */ + 8, /* CP168EL */ + 4 /* CP104EL */ }; #define UART_TYPE_NUM 2 @@ -205,22 +205,43 @@ static const struct mxpciuart_info Gpci_uart_info[UART_INFO_NUM] = { #ifdef CONFIG_PCI 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_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C168), + .driver_data = MXSER_BOARD_C168_PCI }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C104), + .driver_data = MXSER_BOARD_C104_PCI }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132), + .driver_data = MXSER_BOARD_CP132 }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114), + .driver_data = MXSER_BOARD_CP114 }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CT114), + .driver_data = MXSER_BOARD_CT114 }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102), + .driver_data = MXSER_BOARD_CP102 }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104U), + .driver_data = MXSER_BOARD_CP104U }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168U), + .driver_data = MXSER_BOARD_CP168U }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132U), + .driver_data = MXSER_BOARD_CP132U }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134U), + .driver_data = MXSER_BOARD_CP134U }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104JU), + .driver_data = MXSER_BOARD_CP104JU }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_RC7000), + .driver_data = MXSER_BOARD_RC7000 }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118U), + .driver_data = MXSER_BOARD_CP118U }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102UL), + .driver_data = MXSER_BOARD_CP102UL }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102U), + .driver_data = MXSER_BOARD_CP102U }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118EL), + .driver_data = MXSER_BOARD_CP118EL }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168EL), + .driver_data = MXSER_BOARD_CP168EL }, + { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104EL), + .driver_data = MXSER_BOARD_CP104EL }, + { } }; MODULE_DEVICE_TABLE(pci, mxser_pcibrds); @@ -245,7 +266,6 @@ 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"); @@ -285,23 +305,23 @@ struct mxser_hwconf { int board_type; int ports; int irq; - int vector; - int vector_mask; + unsigned long vector; + unsigned long vector_mask; int uart_type; - int ioaddr[MXSER_PORTS_PER_BOARD]; + unsigned long 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 */ + unsigned long opmode_ioaddr[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 01-05-2004 */ }; struct mxser_struct { int port; - int base; /* port base address */ + unsigned long base; /* port base address */ int irq; /* port using irq no. */ - int vector; /* port irq vector */ - int vectormask; /* port vector mask */ + unsigned long vector; /* port irq vector */ + unsigned long vectormask; /* port vector mask */ int rx_high_water; int rx_trigger; /* Rx fifo trigger level */ int rx_low_water; @@ -337,7 +357,7 @@ struct mxser_struct { 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 long opmode_ioaddr; /* add by Victor Yu. 01-05-2004 */ unsigned char stop_rx; unsigned char ldisc_stop_rx; long realbaud; @@ -485,6 +505,9 @@ static int __init mxser_module_init(void) if (verbose) printk(KERN_DEBUG "Loading module mxser ...\n"); + printk(KERN_INFO "This is mxser driver version 1.9.1 and needs TESTING." + "If your are willing to test this driver, please report to " + "jirislaby@gmail.com. Thanks.\n"); ret = mxser_init(); if (verbose) printk(KERN_DEBUG "Done.\n"); @@ -636,7 +659,7 @@ static int mxser_get_PCI_conf(int busnum, int devnum, int board_type, struct mxs { int i, j; /* unsigned int val; */ - unsigned int ioaddress; + unsigned long ioaddress; struct pci_dev *pdev = hwconf->pciInfo.pdev; /* io address */ @@ -790,7 +813,7 @@ static int mxser_init(void) /* Start finding ISA boards from module arg */ for (b = 0; b < MXSER_BOARDS && m < MXSER_BOARDS; b++) { - int cap; + unsigned long cap; if (!(cap = ioaddr[b])) continue; @@ -928,12 +951,10 @@ static void mxser_do_softint(void *private_) tty = info->tty; - if (tty) { - if (test_and_clear_bit(MXSER_EVENT_TXLOW, &info->event)) - tty_wakeup(tty); - if (test_and_clear_bit(MXSER_EVENT_HANGUP, &info->event)) - tty_hangup(tty); - } + if (test_and_clear_bit(MXSER_EVENT_TXLOW, &info->event)) + tty_wakeup(tty); + if (test_and_clear_bit(MXSER_EVENT_HANGUP, &info->event)) + tty_hangup(tty); } static unsigned char mxser_get_msr(int baseaddr, int mode, int port, struct mxser_struct *info) @@ -979,6 +1000,7 @@ static int mxser_open(struct tty_struct *tty, struct file *filp) /* * Start up serial port */ + info->count++; retval = mxser_startup(info); if (retval) return retval; @@ -987,8 +1009,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp) if (retval) return retval; - info->count++; - if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) { if (tty->driver->subtype == SERIAL_TYPE_NORMAL) *tty->termios = info->normal_termios; @@ -1150,11 +1170,13 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou total += c; } - if (info->xmit_cnt && !tty->stopped && !(info->IER & UART_IER_THRI)) { + if (info->xmit_cnt && !tty->stopped + /*&& !(info->IER & UART_IER_THRI)*/) { if (!tty->hw_stopped || (info->type == PORT_16550A) || (info->IsMoxaMustChipFlag)) { spin_lock_irqsave(&info->slock, flags); + outb(info->IER & ~UART_IER_THRI, info->base + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->base + UART_IER); spin_unlock_irqrestore(&info->slock, flags); @@ -1179,11 +1201,12 @@ static void mxser_put_char(struct tty_struct *tty, unsigned char ch) info->xmit_head &= SERIAL_XMIT_SIZE - 1; info->xmit_cnt++; spin_unlock_irqrestore(&info->slock, flags); - if (!tty->stopped && !(info->IER & UART_IER_THRI)) { + if (!tty->stopped /*&& !(info->IER & UART_IER_THRI)*/) { if (!tty->hw_stopped || (info->type == PORT_16550A) || info->IsMoxaMustChipFlag) { spin_lock_irqsave(&info->slock, flags); + outb(info->IER & ~UART_IER_THRI, info->base + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->base + UART_IER); spin_unlock_irqrestore(&info->slock, flags); @@ -1208,6 +1231,7 @@ static void mxser_flush_chars(struct tty_struct *tty) spin_lock_irqsave(&info->slock, flags); + outb(info->IER & ~UART_IER_THRI, info->base + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->base + UART_IER); @@ -1228,7 +1252,12 @@ static int mxser_write_room(struct tty_struct *tty) static int mxser_chars_in_buffer(struct tty_struct *tty) { struct mxser_struct *info = tty->driver_data; - return info->xmit_cnt; + int len = info->xmit_cnt; + + if (!(inb(info->base + UART_LSR) & UART_LSR_THRE)) + len++; + + return len; } static void mxser_flush_buffer(struct tty_struct *tty) @@ -1270,7 +1299,8 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, unsigned int c /* following add by Victor Yu. 01-05-2004 */ if (cmd == MOXA_SET_OP_MODE || cmd == MOXA_GET_OP_MODE) { - int opmode, p; + int p; + unsigned long opmode; static unsigned char ModeMask[] = { 0xfc, 0xf3, 0xcf, 0x3f }; int shiftbit; unsigned char val, mask; @@ -1572,9 +1602,8 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) return -EFAULT; return 0; case MOXA_ASPP_MON_EXT: { - int status; - int opmode, p; - int shiftbit; + int status, p, shiftbit; + unsigned long opmode; unsigned cflag, iflag; for (i = 0; i < MXSER_PORTS; i++) { @@ -1654,73 +1683,52 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) static void mxser_stoprx(struct tty_struct *tty) { struct mxser_struct *info = tty->driver_data; - /* unsigned long flags; */ info->ldisc_stop_rx = 1; if (I_IXOFF(tty)) { - /* MX_LOCK(&info->slock); */ /* following add by Victor Yu. 09-02-2002 */ if (info->IsMoxaMustChipFlag) { info->IER &= ~MOXA_MUST_RECV_ISR; outb(info->IER, info->base + UART_IER); - } else { - /* above add by Victor Yu. 09-02-2002 */ + } else if (!(info->flags & ASYNC_CLOSING)) { info->x_char = STOP_CHAR(tty); - /* mask by Victor Yu. 09-02-2002 */ - /* outb(info->IER, 0); */ outb(0, info->base + UART_IER); info->IER |= UART_IER_THRI; - /* force Tx interrupt */ outb(info->IER, info->base + UART_IER); - } /* add by Victor Yu. 09-02-2002 */ - /* MX_UNLOCK(&info->slock); */ + } } if (info->tty->termios->c_cflag & CRTSCTS) { - /* MX_LOCK(&info->slock); */ info->MCR &= ~UART_MCR_RTS; outb(info->MCR, info->base + UART_MCR); - /* MX_UNLOCK(&info->slock); */ } } static void mxser_startrx(struct tty_struct *tty) { struct mxser_struct *info = tty->driver_data; - /* unsigned long flags; */ info->ldisc_stop_rx = 0; if (I_IXOFF(tty)) { if (info->x_char) info->x_char = 0; else { - /* MX_LOCK(&info->slock); */ - /* following add by Victor Yu. 09-02-2002 */ if (info->IsMoxaMustChipFlag) { info->IER |= MOXA_MUST_RECV_ISR; outb(info->IER, info->base + UART_IER); - } else { - /* above add by Victor Yu. 09-02-2002 */ - + } else if (!(info->flags & ASYNC_CLOSING)) { info->x_char = START_CHAR(tty); - /* mask by Victor Yu. 09-02-2002 */ - /* outb(info->IER, 0); */ - /* add by Victor Yu. 09-02-2002 */ outb(0, info->base + UART_IER); - /* force Tx interrupt */ info->IER |= UART_IER_THRI; outb(info->IER, info->base + UART_IER); - } /* add by Victor Yu. 09-02-2002 */ - /* MX_UNLOCK(&info->slock); */ + } } } if (info->tty->termios->c_cflag & CRTSCTS) { - /* MX_LOCK(&info->slock); */ info->MCR |= UART_MCR_RTS; outb(info->MCR, info->base + UART_MCR); - /* MX_UNLOCK(&info->slock); */ } } @@ -1730,22 +1738,22 @@ static void mxser_startrx(struct tty_struct *tty) */ static void mxser_throttle(struct tty_struct *tty) { - /* struct mxser_struct *info = tty->driver_data; */ - /* unsigned long flags; */ + struct mxser_struct *info = tty->driver_data; + unsigned long flags; - /* MX_LOCK(&info->slock); */ + spin_lock_irqsave(&info->slock, flags); mxser_stoprx(tty); - /* MX_UNLOCK(&info->slock); */ + spin_unlock_irqrestore(&info->slock, flags); } static void mxser_unthrottle(struct tty_struct *tty) { - /* struct mxser_struct *info = tty->driver_data; */ - /* unsigned long flags; */ + struct mxser_struct *info = tty->driver_data; + unsigned long flags; - /* MX_LOCK(&info->slock); */ + spin_lock_irqsave(&info->slock, flags); mxser_startrx(tty); - /* MX_UNLOCK(&info->slock); */ + spin_unlock_irqrestore(&info->slock, flags); } static void mxser_set_termios(struct tty_struct *tty, struct termios *old_termios) @@ -1807,7 +1815,9 @@ static void mxser_start(struct tty_struct *tty) unsigned long flags; spin_lock_irqsave(&info->slock, flags); - if (info->xmit_cnt && info->xmit_buf && !(info->IER & UART_IER_THRI)) { + if (info->xmit_cnt && info->xmit_buf + /* && !(info->IER & UART_IER_THRI) */) { + outb(info->IER & ~UART_IER_THRI, info->base + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->base + UART_IER); } @@ -1927,6 +1937,7 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs) struct mxser_struct *port; int max, irqbits, bits, msr; int pass_counter = 0; + unsigned int int_cnt; int handled = IRQ_NONE; port = NULL; @@ -1957,90 +1968,77 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs) continue; info = port + i; - /* following add by Victor Yu. 09-13-2002 */ - iir = inb(info->base + UART_IIR); - if (iir & UART_IIR_NO_INT) - continue; - iir &= MOXA_MUST_IIR_MASK; - if (!info->tty) { - status = inb(info->base + UART_LSR); - outb(0x27, info->base + UART_FCR); - inb(info->base + UART_MSR); - continue; - } - /* above add by Victor Yu. 09-13-2002 */ - /* - if (info->tty->flip.count < TTY_FLIPBUF_SIZE / 4) { - info->IER |= MOXA_MUST_RECV_ISR; - outb(info->IER, info->base + UART_IER); - } - */ - - - /* mask by Victor Yu. 09-13-2002 - if ( !info->tty || - (inb(info->base + UART_IIR) & UART_IIR_NO_INT) ) - continue; - */ - /* mask by Victor Yu. 09-02-2002 - status = inb(info->base + UART_LSR) & info->read_status_mask; - */ - - /* following add by Victor Yu. 09-02-2002 */ - status = inb(info->base + UART_LSR); + int_cnt = 0; + do { + /* following add by Victor Yu. 09-13-2002 */ + iir = inb(info->base + UART_IIR); + if (iir & UART_IIR_NO_INT) + break; + iir &= MOXA_MUST_IIR_MASK; + if (!info->tty) { + status = inb(info->base + UART_LSR); + outb(0x27, info->base + UART_FCR); + inb(info->base + UART_MSR); + break; + } + /* above add by Victor Yu. 09-13-2002 */ - if (status & UART_LSR_PE) - info->err_shadow |= NPPI_NOTIFY_PARITY; - if (status & UART_LSR_FE) - info->err_shadow |= NPPI_NOTIFY_FRAMING; - if (status & UART_LSR_OE) - info->err_shadow |= NPPI_NOTIFY_HW_OVERRUN; - if (status & UART_LSR_BI) - info->err_shadow |= NPPI_NOTIFY_BREAK; + spin_lock(&info->slock); + /* following add by Victor Yu. 09-02-2002 */ + status = inb(info->base + UART_LSR); - if (info->IsMoxaMustChipFlag) { - /* - if ( (status & 0x02) && !(status & 0x01) ) { - outb(info->base+UART_FCR, 0x23); - continue; - } - */ - if (iir == MOXA_MUST_IIR_GDA || - iir == MOXA_MUST_IIR_RDA || - iir == MOXA_MUST_IIR_RTO || - iir == MOXA_MUST_IIR_LSR) - mxser_receive_chars(info, &status); + if (status & UART_LSR_PE) + info->err_shadow |= NPPI_NOTIFY_PARITY; + if (status & UART_LSR_FE) + info->err_shadow |= NPPI_NOTIFY_FRAMING; + if (status & UART_LSR_OE) + info->err_shadow |= + NPPI_NOTIFY_HW_OVERRUN; + if (status & UART_LSR_BI) + info->err_shadow |= NPPI_NOTIFY_BREAK; + + if (info->IsMoxaMustChipFlag) { + /* + if ( (status & 0x02) && !(status & 0x01) ) { + outb(info->base+UART_FCR, 0x23); + continue; + } + */ + if (iir == MOXA_MUST_IIR_GDA || + iir == MOXA_MUST_IIR_RDA || + iir == MOXA_MUST_IIR_RTO || + iir == MOXA_MUST_IIR_LSR) + mxser_receive_chars(info, + &status); - } else { - /* above add by Victor Yu. 09-02-2002 */ + } else { + /* above add by Victor Yu. 09-02-2002 */ - status &= info->read_status_mask; - if (status & UART_LSR_DR) - mxser_receive_chars(info, &status); - } - msr = inb(info->base + UART_MSR); - if (msr & UART_MSR_ANY_DELTA) { - mxser_check_modem_status(info, msr); - } - /* following add by Victor Yu. 09-13-2002 */ - if (info->IsMoxaMustChipFlag) { - if ((iir == 0x02) && (status & UART_LSR_THRE)) { - mxser_transmit_chars(info); + status &= info->read_status_mask; + if (status & UART_LSR_DR) + mxser_receive_chars(info, + &status); } - } else { - /* above add by Victor Yu. 09-13-2002 */ + msr = inb(info->base + UART_MSR); + if (msr & UART_MSR_ANY_DELTA) + mxser_check_modem_status(info, msr); + + /* following add by Victor Yu. 09-13-2002 */ + if (info->IsMoxaMustChipFlag) { + if (iir == 0x02 && (status & + UART_LSR_THRE)) + mxser_transmit_chars(info); + } else { + /* above add by Victor Yu. 09-13-2002 */ - if (status & UART_LSR_THRE) { -/* 8-2-99 by William - if ( info->x_char || (info->xmit_cnt > 0) ) -*/ - mxser_transmit_chars(info); + if (status & UART_LSR_THRE) + mxser_transmit_chars(info); } - } + spin_unlock(&info->slock); + } while (int_cnt++ < MXSER_ISR_PASS_LIMIT); } - if (pass_counter++ > MXSER_ISR_PASS_LIMIT) { + if (pass_counter++ > MXSER_ISR_PASS_LIMIT) break; /* Prevent infinite loops */ - } } irq_stop: @@ -2070,9 +2068,8 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status) /* following add by Victor Yu. 09-02-2002 */ if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) { - if (*status & UART_LSR_SPECIAL) { + if (*status & UART_LSR_SPECIAL) goto intr_old; - } /* following add by Victor Yu. 02-11-2004 */ if (info->IsMoxaMustChipFlag == MOXA_MUST_MU860_HWID && (*status & MOXA_MUST_LSR_RERR)) @@ -2097,12 +2094,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status) ch = inb(info->base + UART_RX); tty_insert_flip_char(tty, ch, 0); cnt++; - /* - if ((cnt >= HI_WATER) && (info->stop_rx == 0)) { - mxser_stoprx(tty); - info->stop_rx = 1; - break; - } */ } goto end_intr; } @@ -2112,17 +2103,11 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status) do { if (max-- < 0) break; - /* - if ((cnt >= HI_WATER) && (info->stop_rx == 0)) { - mxser_stoprx(tty); - info->stop_rx=1; - break; - } - */ ch = inb(info->base + UART_RX); /* following add by Victor Yu. 09-02-2002 */ - if (info->IsMoxaMustChipFlag && (*status & UART_LSR_OE) /*&& !(*status&UART_LSR_DR) */ ) + if (info->IsMoxaMustChipFlag && (*status & UART_LSR_OE) + /*&& !(*status&UART_LSR_DR) */) outb(0x23, info->base + UART_FCR); *status &= info->read_status_mask; /* above add by Victor Yu. 09-02-2002 */ @@ -2136,26 +2121,25 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status) flag = TTY_BREAK; /* added by casper 1/11/2000 */ info->icount.brk++; -/* */ + if (info->flags & ASYNC_SAK) do_SAK(tty); } else if (*status & UART_LSR_PE) { flag = TTY_PARITY; /* added by casper 1/11/2000 */ info->icount.parity++; -/* */ } else if (*status & UART_LSR_FE) { flag = TTY_FRAME; /* added by casper 1/11/2000 */ info->icount.frame++; -/* */ } else if (*status & UART_LSR_OE) { flag = TTY_OVERRUN; /* added by casper 1/11/2000 */ info->icount.overrun++; -/* */ - } - } + } else + flags = TTY_BREAK; + } else + flags = 0; tty_insert_flip_char(tty, ch, flag); cnt++; if (cnt >= recv_room) { @@ -2171,7 +2155,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status) /* following add by Victor Yu. 09-02-2002 */ if (info->IsMoxaMustChipFlag) break; - /* above add by Victor Yu. 09-02-2002 */ /* mask by Victor Yu. 09-02-2002 *status = inb(info->base + UART_LSR) & info->read_status_mask; @@ -2206,24 +2189,25 @@ static void mxser_transmit_chars(struct mxser_struct *info) /* added by casper 1/11/2000 */ info->icount.tx++; -/* */ - spin_unlock_irqrestore(&info->slock, flags); - return; + goto unlock; } - if (info->xmit_buf == 0) { - spin_unlock_irqrestore(&info->slock, flags); - return; - } + if (info->xmit_buf == 0) + goto unlock; - if ((info->xmit_cnt <= 0) || info->tty->stopped || - (info->tty->hw_stopped && + if (info->xmit_cnt == 0) { + if (info->xmit_cnt < WAKEUP_CHARS) { /* XXX what's this for?? */ + set_bit(MXSER_EVENT_TXLOW, &info->event); + schedule_work(&info->tqueue); + } + goto unlock; + } + if (info->tty->stopped || (info->tty->hw_stopped && (info->type != PORT_16550A) && (!info->IsMoxaMustChipFlag))) { info->IER &= ~UART_IER_THRI; outb(info->IER, info->base + UART_IER); - spin_unlock_irqrestore(&info->slock, flags); - return; + goto unlock; } cnt = info->xmit_cnt; @@ -2240,11 +2224,9 @@ static void mxser_transmit_chars(struct mxser_struct *info) /* added by James 03-12-2004. */ info->mon_data.txcnt += (cnt - info->xmit_cnt); info->mon_data.up_txcnt += (cnt - info->xmit_cnt); -/* (above) added by James. */ /* added by casper 1/11/2000 */ info->icount.tx += (cnt - info->xmit_cnt); -/* */ if (info->xmit_cnt < WAKEUP_CHARS) { set_bit(MXSER_EVENT_TXLOW, &info->event); @@ -2254,6 +2236,7 @@ static void mxser_transmit_chars(struct mxser_struct *info) info->IER &= ~UART_IER_THRI; outb(info->IER, info->base + UART_IER); } +unlock: spin_unlock_irqrestore(&info->slock, flags); } @@ -2284,16 +2267,19 @@ static void mxser_check_modem_status(struct mxser_struct *info, int status) if ((info->type != PORT_16550A) && (!info->IsMoxaMustChipFlag)) { + outb(info->IER & ~UART_IER_THRI, + info->base + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->base + UART_IER); } set_bit(MXSER_EVENT_TXLOW, &info->event); - schedule_work(&info->tqueue); } + schedule_work(&info->tqueue); + } } else { if (!(status & UART_MSR_CTS)) { info->tty->hw_stopped = 1; - if ((info->type != PORT_16550A) && - (!info->IsMoxaMustChipFlag)) { + if (info->type != PORT_16550A && + !info->IsMoxaMustChipFlag) { info->IER &= ~UART_IER_THRI; outb(info->IER, info->base + UART_IER); } @@ -2645,8 +2631,10 @@ static int mxser_change_speed(struct mxser_struct *info, struct termios *old_ter if (info->tty->hw_stopped) { if (status & UART_MSR_CTS) { info->tty->hw_stopped = 0; - if ((info->type != PORT_16550A) && - (!info->IsMoxaMustChipFlag)) { + if (info->type != PORT_16550A && + !info->IsMoxaMustChipFlag) { + outb(info->IER & ~UART_IER_THRI, + info->base + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->base + UART_IER); } diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 4d972bbef3..51180dba9a 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1785,14 +1785,17 @@ #define PCI_DEVICE_ID_MOXA_C104 0x1040 #define PCI_DEVICE_ID_MOXA_CP104U 0x1041 #define PCI_DEVICE_ID_MOXA_CP104JU 0x1042 +#define PCI_DEVICE_ID_MOXA_CP104EL 0x1043 #define PCI_DEVICE_ID_MOXA_CT114 0x1140 #define PCI_DEVICE_ID_MOXA_CP114 0x1141 #define PCI_DEVICE_ID_MOXA_CP118U 0x1180 +#define PCI_DEVICE_ID_MOXA_CP118EL 0x1181 #define PCI_DEVICE_ID_MOXA_CP132 0x1320 #define PCI_DEVICE_ID_MOXA_CP132U 0x1321 #define PCI_DEVICE_ID_MOXA_CP134U 0x1340 #define PCI_DEVICE_ID_MOXA_C168 0x1680 #define PCI_DEVICE_ID_MOXA_CP168U 0x1681 +#define PCI_DEVICE_ID_MOXA_CP168EL 0x1682 #define PCI_VENDOR_ID_CCD 0x1397 #define PCI_DEVICE_ID_CCD_2BD0 0x2bd0 -- 2.39.5