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drivers/tty/moxa.c
52.1 KB
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// SPDX-License-Identifier: GPL-2.0+ |
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/*****************************************************************************/ /* * moxa.c -- MOXA Intellio family multiport serial driver. * |
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* Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com). * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> |
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* * This code is loosely based on the Linux serial driver, written by * Linus Torvalds, Theodore T'so and others. |
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*/ /* * MOXA Intellio Series Driver * for : LINUX * date : 1999/1/7 * version : 5.1 */ |
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#include <linux/module.h> #include <linux/types.h> #include <linux/mm.h> #include <linux/ioport.h> #include <linux/errno.h> |
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#include <linux/firmware.h> |
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#include <linux/signal.h> #include <linux/sched.h> #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/tty.h> #include <linux/tty_flip.h> #include <linux/major.h> #include <linux/string.h> #include <linux/fcntl.h> #include <linux/ptrace.h> #include <linux/serial.h> #include <linux/tty_driver.h> #include <linux/delay.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/bitops.h> |
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#include <linux/slab.h> |
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#include <linux/ratelimit.h> |
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#include <asm/io.h> |
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#include <linux/uaccess.h> |
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#include "moxa.h" |
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#define MOXA_VERSION "6.0k" |
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#define MOXA_FW_HDRLEN 32 |
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#define MOXAMAJOR 172 |
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#define MAX_BOARDS 4 /* Don't change this value */ |
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#define MAX_PORTS_PER_BOARD 32 /* Don't change this value */ |
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#define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD) |
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#define MOXA_IS_320(brd) ((brd)->boardType == MOXA_BOARD_C320_ISA || \ (brd)->boardType == MOXA_BOARD_C320_PCI) |
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/* * Define the Moxa PCI vendor and device IDs. */ |
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#define MOXA_BUS_TYPE_ISA 0 #define MOXA_BUS_TYPE_PCI 1 |
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enum { MOXA_BOARD_C218_PCI = 1, MOXA_BOARD_C218_ISA, MOXA_BOARD_C320_PCI, MOXA_BOARD_C320_ISA, MOXA_BOARD_CP204J, }; static char *moxa_brdname[] = { "C218 Turbo PCI series", "C218 Turbo ISA series", "C320 Turbo PCI series", "C320 Turbo ISA series", "CP-204J series", }; #ifdef CONFIG_PCI |
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static const struct pci_device_id moxa_pcibrds[] = { |
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{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218), .driver_data = MOXA_BOARD_C218_PCI }, { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320), .driver_data = MOXA_BOARD_C320_PCI }, { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J), .driver_data = MOXA_BOARD_CP204J }, |
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{ 0 } }; MODULE_DEVICE_TABLE(pci, moxa_pcibrds); #endif /* CONFIG_PCI */ |
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struct moxa_port; |
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static struct moxa_board_conf { |
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int boardType; int numPorts; |
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int busType; |
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unsigned int ready; |
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struct moxa_port *ports; |
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void __iomem *basemem; void __iomem *intNdx; void __iomem *intPend; void __iomem *intTable; } moxa_boards[MAX_BOARDS]; struct mxser_mstatus { tcflag_t cflag; int cts; int dsr; int ri; int dcd; |
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}; |
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struct moxaq_str { int inq; int outq; }; |
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struct moxa_port { |
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struct tty_port port; |
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struct moxa_board_conf *board; |
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void __iomem *tableAddr; |
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int type; |
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int cflag; |
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unsigned long statusflags; |
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|
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u8 DCDState; /* Protected by the port lock */ |
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u8 lineCtrl; u8 lowChkFlag; |
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}; |
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struct mon_str { int tick; int rxcnt[MAX_PORTS]; int txcnt[MAX_PORTS]; }; |
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/* statusflags */ |
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#define TXSTOPPED 1 #define LOWWAIT 2 #define EMPTYWAIT 3 |
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#define WAKEUP_CHARS 256 |
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static int ttymajor = MOXAMAJOR; |
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static struct mon_str moxaLog; static unsigned int moxaFuncTout = HZ / 2; |
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static unsigned int moxaLowWaterChk; |
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static DEFINE_MUTEX(moxa_openlock); |
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static DEFINE_SPINLOCK(moxa_lock); |
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static unsigned long baseaddr[MAX_BOARDS]; static unsigned int type[MAX_BOARDS]; static unsigned int numports[MAX_BOARDS]; |
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static struct tty_port moxa_service_port; |
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MODULE_AUTHOR("William Chen"); MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver"); MODULE_LICENSE("GPL"); |
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MODULE_FIRMWARE("c218tunx.cod"); MODULE_FIRMWARE("cp204unx.cod"); MODULE_FIRMWARE("c320tunx.cod"); |
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module_param_array(type, uint, NULL, 0); MODULE_PARM_DESC(type, "card type: C218=2, C320=4"); |
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module_param_hw_array(baseaddr, ulong, ioport, NULL, 0); |
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MODULE_PARM_DESC(baseaddr, "base address"); module_param_array(numports, uint, NULL, 0); MODULE_PARM_DESC(numports, "numports (ignored for C218)"); |
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module_param(ttymajor, int, 0); |
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/* * static functions: */ |
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static int moxa_open(struct tty_struct *, struct file *); static void moxa_close(struct tty_struct *, struct file *); static int moxa_write(struct tty_struct *, const unsigned char *, int); static int moxa_write_room(struct tty_struct *); static void moxa_flush_buffer(struct tty_struct *); static int moxa_chars_in_buffer(struct tty_struct *); |
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static void moxa_set_termios(struct tty_struct *, struct ktermios *); |
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static void moxa_stop(struct tty_struct *); static void moxa_start(struct tty_struct *); static void moxa_hangup(struct tty_struct *); |
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static int moxa_tiocmget(struct tty_struct *tty); |
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static int moxa_tiocmset(struct tty_struct *tty, |
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unsigned int set, unsigned int clear); |
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static void moxa_poll(struct timer_list *); |
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static void moxa_set_tty_param(struct tty_struct *, struct ktermios *); |
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static void moxa_shutdown(struct tty_port *); |
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static int moxa_carrier_raised(struct tty_port *); |
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static void moxa_dtr_rts(struct tty_port *, int); |
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/* * moxa board interface functions: */ |
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static void MoxaPortEnable(struct moxa_port *); static void MoxaPortDisable(struct moxa_port *); static int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t); static int MoxaPortGetLineOut(struct moxa_port *, int *, int *); static void MoxaPortLineCtrl(struct moxa_port *, int, int); static void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int); static int MoxaPortLineStatus(struct moxa_port *); |
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static void MoxaPortFlushData(struct moxa_port *, int); |
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static int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int); |
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static int MoxaPortReadData(struct moxa_port *); |
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static int MoxaPortTxQueue(struct moxa_port *); static int MoxaPortRxQueue(struct moxa_port *); static int MoxaPortTxFree(struct moxa_port *); static void MoxaPortTxDisable(struct moxa_port *); static void MoxaPortTxEnable(struct moxa_port *); |
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static int moxa_get_serial_info(struct tty_struct *, struct serial_struct *); static int moxa_set_serial_info(struct tty_struct *, struct serial_struct *); |
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static void MoxaSetFifo(struct moxa_port *port, int enable); |
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/* * I/O functions */ |
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static DEFINE_SPINLOCK(moxafunc_lock); |
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static void moxa_wait_finish(void __iomem *ofsAddr) { unsigned long end = jiffies + moxaFuncTout; while (readw(ofsAddr + FuncCode) != 0) if (time_after(jiffies, end)) return; |
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if (readw(ofsAddr + FuncCode) != 0) printk_ratelimited(KERN_WARNING "moxa function expired "); |
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} |
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static void moxafunc(void __iomem *ofsAddr, u16 cmd, u16 arg) |
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{ |
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unsigned long flags; spin_lock_irqsave(&moxafunc_lock, flags); |
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writew(arg, ofsAddr + FuncArg); writew(cmd, ofsAddr + FuncCode); moxa_wait_finish(ofsAddr); |
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spin_unlock_irqrestore(&moxafunc_lock, flags); } static int moxafuncret(void __iomem *ofsAddr, u16 cmd, u16 arg) { unsigned long flags; u16 ret; spin_lock_irqsave(&moxafunc_lock, flags); writew(arg, ofsAddr + FuncArg); writew(cmd, ofsAddr + FuncCode); moxa_wait_finish(ofsAddr); ret = readw(ofsAddr + FuncArg); spin_unlock_irqrestore(&moxafunc_lock, flags); return ret; |
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} |
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static void moxa_low_water_check(void __iomem *ofsAddr) { u16 rptr, wptr, mask, len; if (readb(ofsAddr + FlagStat) & Xoff_state) { rptr = readw(ofsAddr + RXrptr); wptr = readw(ofsAddr + RXwptr); mask = readw(ofsAddr + RX_mask); len = (wptr - rptr) & mask; if (len <= Low_water) moxafunc(ofsAddr, FC_SendXon, 0); } } |
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/* * TTY operations */ |
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static int moxa_ioctl(struct tty_struct *tty, |
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unsigned int cmd, unsigned long arg) { struct moxa_port *ch = tty->driver_data; void __user *argp = (void __user *)arg; |
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int status, ret = 0; |
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if (tty->index == MAX_PORTS) { if (cmd != MOXA_GETDATACOUNT && cmd != MOXA_GET_IOQUEUE && cmd != MOXA_GETMSTATUS) return -EINVAL; } else if (!ch) return -ENODEV; switch (cmd) { case MOXA_GETDATACOUNT: moxaLog.tick = jiffies; |
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if (copy_to_user(argp, &moxaLog, sizeof(moxaLog))) ret = -EFAULT; break; |
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case MOXA_FLUSH_QUEUE: MoxaPortFlushData(ch, arg); |
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break; |
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case MOXA_GET_IOQUEUE: { struct moxaq_str __user *argm = argp; struct moxaq_str tmp; struct moxa_port *p; unsigned int i, j; for (i = 0; i < MAX_BOARDS; i++) { p = moxa_boards[i].ports; for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { memset(&tmp, 0, sizeof(tmp)); |
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spin_lock_bh(&moxa_lock); |
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if (moxa_boards[i].ready) { tmp.inq = MoxaPortRxQueue(p); tmp.outq = MoxaPortTxQueue(p); } |
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spin_unlock_bh(&moxa_lock); if (copy_to_user(argm, &tmp, sizeof(tmp))) |
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return -EFAULT; } } |
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break; |
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} case MOXA_GET_OQUEUE: status = MoxaPortTxQueue(ch); |
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ret = put_user(status, (unsigned long __user *)argp); break; |
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case MOXA_GET_IQUEUE: status = MoxaPortRxQueue(ch); |
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ret = put_user(status, (unsigned long __user *)argp); break; |
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case MOXA_GETMSTATUS: { struct mxser_mstatus __user *argm = argp; struct mxser_mstatus tmp; struct moxa_port *p; unsigned int i, j; for (i = 0; i < MAX_BOARDS; i++) { p = moxa_boards[i].ports; for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) { |
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struct tty_struct *ttyp; |
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memset(&tmp, 0, sizeof(tmp)); |
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spin_lock_bh(&moxa_lock); if (!moxa_boards[i].ready) { spin_unlock_bh(&moxa_lock); |
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goto copy; |
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} |
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status = MoxaPortLineStatus(p); |
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spin_unlock_bh(&moxa_lock); |
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if (status & 1) tmp.cts = 1; if (status & 2) tmp.dsr = 1; if (status & 4) tmp.dcd = 1; |
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ttyp = tty_port_tty_get(&p->port); |
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if (!ttyp) |
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tmp.cflag = p->cflag; else |
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tmp.cflag = ttyp->termios.c_cflag; |
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tty_kref_put(ttyp); |
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copy: |
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if (copy_to_user(argm, &tmp, sizeof(tmp))) |
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return -EFAULT; } } |
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break; |
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} |
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default: ret = -ENOIOCTLCMD; |
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} |
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return ret; |
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} |
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static int moxa_break_ctl(struct tty_struct *tty, int state) |
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{ struct moxa_port *port = tty->driver_data; moxafunc(port->tableAddr, state ? FC_SendBreak : FC_StopBreak, Magic_code); |
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return 0; |
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} |
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static const struct tty_operations moxa_ops = { |
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.open = moxa_open, .close = moxa_close, .write = moxa_write, .write_room = moxa_write_room, .flush_buffer = moxa_flush_buffer, .chars_in_buffer = moxa_chars_in_buffer, |
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.ioctl = moxa_ioctl, |
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.set_termios = moxa_set_termios, .stop = moxa_stop, .start = moxa_start, .hangup = moxa_hangup, |
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.break_ctl = moxa_break_ctl, |
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.tiocmget = moxa_tiocmget, .tiocmset = moxa_tiocmset, |
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.set_serial = moxa_set_serial_info, .get_serial = moxa_get_serial_info, |
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}; |
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392 393 |
static const struct tty_port_operations moxa_port_ops = { .carrier_raised = moxa_carrier_raised, |
f176178ba tty: moxa: Use mo... |
394 395 |
.dtr_rts = moxa_dtr_rts, .shutdown = moxa_shutdown, |
31f35939d tty_port: Add a p... |
396 |
}; |
aa7e5221f [PATCH] Char: mox... |
397 |
static struct tty_driver *moxaDriver; |
1d27e3e22 timer: Remove exp... |
398 |
static DEFINE_TIMER(moxaTimer, moxa_poll); |
33f0f88f1 [PATCH] TTY layer... |
399 |
|
74d7d97b9 Char: moxa, ioctl... |
400 401 402 |
/* * HW init */ |
037182346 Char: moxa, add f... |
403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 |
static int moxa_check_fw_model(struct moxa_board_conf *brd, u8 model) { switch (brd->boardType) { case MOXA_BOARD_C218_ISA: case MOXA_BOARD_C218_PCI: if (model != 1) goto err; break; case MOXA_BOARD_CP204J: if (model != 3) goto err; break; default: if (model != 2) goto err; break; } return 0; err: return -EINVAL; } static int moxa_check_fw(const void *ptr) { const __le16 *lptr = ptr; if (*lptr != cpu_to_le16(0x7980)) return -EINVAL; return 0; } static int moxa_load_bios(struct moxa_board_conf *brd, const u8 *buf, size_t len) { void __iomem *baseAddr = brd->basemem; u16 tmp; writeb(HW_reset, baseAddr + Control_reg); /* reset */ msleep(10); memset_io(baseAddr, 0, 4096); memcpy_toio(baseAddr, buf, len); /* download BIOS */ writeb(0, baseAddr + Control_reg); /* restart */ msleep(2000); switch (brd->boardType) { case MOXA_BOARD_C218_ISA: case MOXA_BOARD_C218_PCI: tmp = readw(baseAddr + C218_key); if (tmp != C218_KeyCode) goto err; break; case MOXA_BOARD_CP204J: tmp = readw(baseAddr + C218_key); if (tmp != CP204J_KeyCode) goto err; break; default: tmp = readw(baseAddr + C320_key); if (tmp != C320_KeyCode) goto err; tmp = readw(baseAddr + C320_status); if (tmp != STS_init) { |
eaa95a8da Char: moxa, littl... |
467 |
printk(KERN_ERR "MOXA: bios upload failed -- CPU/Basic " |
037182346 Char: moxa, add f... |
468 469 470 471 472 473 474 475 476 |
"module not found "); return -EIO; } break; } return 0; err: |
eaa95a8da Char: moxa, littl... |
477 478 |
printk(KERN_ERR "MOXA: bios upload failed -- board not found "); |
037182346 Char: moxa, add f... |
479 480 481 482 483 484 485 486 487 |
return -EIO; } static int moxa_load_320b(struct moxa_board_conf *brd, const u8 *ptr, size_t len) { void __iomem *baseAddr = brd->basemem; if (len < 7168) { |
eaa95a8da Char: moxa, littl... |
488 489 |
printk(KERN_ERR "MOXA: invalid 320 bios -- too short "); |
037182346 Char: moxa, add f... |
490 491 492 493 494 495 496 497 498 499 500 |
return -EINVAL; } writew(len - 7168 - 2, baseAddr + C320bapi_len); writeb(1, baseAddr + Control_reg); /* Select Page 1 */ memcpy_toio(baseAddr + DynPage_addr, ptr, 7168); writeb(2, baseAddr + Control_reg); /* Select Page 2 */ memcpy_toio(baseAddr + DynPage_addr, ptr + 7168, len - 7168); return 0; } |
5292bcd38 Char: moxa, merge... |
501 |
static int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr, |
037182346 Char: moxa, add f... |
502 503 504 |
size_t len) { void __iomem *baseAddr = brd->basemem; |
b46f69cd2 char: moxa.c spar... |
505 |
const __le16 *uptr = ptr; |
037182346 Char: moxa, add f... |
506 |
size_t wlen, len2, j; |
5292bcd38 Char: moxa, merge... |
507 |
unsigned long key, loadbuf, loadlen, checksum, checksum_ok; |
08d01c792 Char: moxa, intro... |
508 |
unsigned int i, retry; |
037182346 Char: moxa, add f... |
509 |
u16 usum, keycode; |
5292bcd38 Char: moxa, merge... |
510 511 |
keycode = (brd->boardType == MOXA_BOARD_CP204J) ? CP204J_KeyCode : C218_KeyCode; |
037182346 Char: moxa, add f... |
512 |
|
5292bcd38 Char: moxa, merge... |
513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 |
switch (brd->boardType) { case MOXA_BOARD_CP204J: case MOXA_BOARD_C218_ISA: case MOXA_BOARD_C218_PCI: key = C218_key; loadbuf = C218_LoadBuf; loadlen = C218DLoad_len; checksum = C218check_sum; checksum_ok = C218chksum_ok; break; default: key = C320_key; keycode = C320_KeyCode; loadbuf = C320_LoadBuf; loadlen = C320DLoad_len; checksum = C320check_sum; checksum_ok = C320chksum_ok; break; |
037182346 Char: moxa, add f... |
531 |
} |
037182346 Char: moxa, add f... |
532 533 534 535 536 537 538 539 540 541 542 543 |
usum = 0; wlen = len >> 1; for (i = 0; i < wlen; i++) usum += le16_to_cpu(uptr[i]); retry = 0; do { wlen = len >> 1; j = 0; while (wlen) { len2 = (wlen > 2048) ? 2048 : wlen; wlen -= len2; |
5292bcd38 Char: moxa, merge... |
544 |
memcpy_toio(baseAddr + loadbuf, ptr + j, len2 << 1); |
037182346 Char: moxa, add f... |
545 |
j += len2 << 1; |
5292bcd38 Char: moxa, merge... |
546 547 548 549 550 |
writew(len2, baseAddr + loadlen); writew(0, baseAddr + key); for (i = 0; i < 100; i++) { if (readw(baseAddr + key) == keycode) |
037182346 Char: moxa, add f... |
551 552 553 |
break; msleep(10); } |
5292bcd38 Char: moxa, merge... |
554 |
if (readw(baseAddr + key) != keycode) |
037182346 Char: moxa, add f... |
555 556 |
return -EIO; } |
5292bcd38 Char: moxa, merge... |
557 558 559 560 561 |
writew(0, baseAddr + loadlen); writew(usum, baseAddr + checksum); writew(0, baseAddr + key); for (i = 0; i < 100; i++) { if (readw(baseAddr + key) == keycode) |
037182346 Char: moxa, add f... |
562 563 564 565 |
break; msleep(10); } retry++; |
5292bcd38 Char: moxa, merge... |
566 567 |
} while ((readb(baseAddr + checksum_ok) != 1) && (retry < 3)); if (readb(baseAddr + checksum_ok) != 1) |
037182346 Char: moxa, add f... |
568 |
return -EIO; |
5292bcd38 Char: moxa, merge... |
569 |
writew(0, baseAddr + key); |
037182346 Char: moxa, add f... |
570 571 572 573 574 575 576 |
for (i = 0; i < 600; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) return -EIO; |
08d01c792 Char: moxa, intro... |
577 |
if (MOXA_IS_320(brd)) { |
5292bcd38 Char: moxa, merge... |
578 579 580 581 582 583 584 585 586 |
if (brd->busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */ writew(0x3800, baseAddr + TMS320_PORT1); writew(0x3900, baseAddr + TMS320_PORT2); writew(28499, baseAddr + TMS320_CLOCK); } else { writew(0x3200, baseAddr + TMS320_PORT1); writew(0x3400, baseAddr + TMS320_PORT2); writew(19999, baseAddr + TMS320_CLOCK); } |
037182346 Char: moxa, add f... |
587 588 589 590 591 592 593 594 595 596 |
} writew(1, baseAddr + Disable_IRQ); writew(0, baseAddr + Magic_no); for (i = 0; i < 500; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) return -EIO; |
08d01c792 Char: moxa, intro... |
597 |
if (MOXA_IS_320(brd)) { |
5292bcd38 Char: moxa, merge... |
598 599 600 601 602 603 604 605 606 607 608 609 610 |
j = readw(baseAddr + Module_cnt); if (j <= 0) return -EIO; brd->numPorts = j * 8; writew(j, baseAddr + Module_no); writew(0, baseAddr + Magic_no); for (i = 0; i < 600; i++) { if (readw(baseAddr + Magic_no) == Magic_code) break; msleep(10); } if (readw(baseAddr + Magic_no) != Magic_code) return -EIO; |
037182346 Char: moxa, add f... |
611 |
} |
037182346 Char: moxa, add f... |
612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 |
brd->intNdx = baseAddr + IRQindex; brd->intPend = baseAddr + IRQpending; brd->intTable = baseAddr + IRQtable; return 0; } static int moxa_load_code(struct moxa_board_conf *brd, const void *ptr, size_t len) { void __iomem *ofsAddr, *baseAddr = brd->basemem; struct moxa_port *port; int retval, i; if (len % 2) { |
eaa95a8da Char: moxa, littl... |
627 628 |
printk(KERN_ERR "MOXA: bios length is not even "); |
037182346 Char: moxa, add f... |
629 630 |
return -EINVAL; } |
5292bcd38 Char: moxa, merge... |
631 632 633 |
retval = moxa_real_load_code(brd, ptr, len); /* may change numPorts */ if (retval) return retval; |
037182346 Char: moxa, add f... |
634 635 636 637 |
switch (brd->boardType) { case MOXA_BOARD_C218_ISA: case MOXA_BOARD_C218_PCI: case MOXA_BOARD_CP204J: |
037182346 Char: moxa, add f... |
638 639 |
port = brd->ports; for (i = 0; i < brd->numPorts; i++, port++) { |
b4173f457 Char: moxa, remov... |
640 |
port->board = brd; |
037182346 Char: moxa, add f... |
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 |
port->DCDState = 0; port->tableAddr = baseAddr + Extern_table + Extern_size * i; ofsAddr = port->tableAddr; writew(C218rx_mask, ofsAddr + RX_mask); writew(C218tx_mask, ofsAddr + TX_mask); writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb); writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb); writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb); writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb); } break; default: |
037182346 Char: moxa, add f... |
656 657 |
port = brd->ports; for (i = 0; i < brd->numPorts; i++, port++) { |
b4173f457 Char: moxa, remov... |
658 |
port->board = brd; |
037182346 Char: moxa, add f... |
659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 |
port->DCDState = 0; port->tableAddr = baseAddr + Extern_table + Extern_size * i; ofsAddr = port->tableAddr; switch (brd->numPorts) { case 8: writew(C320p8rx_mask, ofsAddr + RX_mask); writew(C320p8tx_mask, ofsAddr + TX_mask); writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb); writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb); writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb); writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb); break; case 16: writew(C320p16rx_mask, ofsAddr + RX_mask); writew(C320p16tx_mask, ofsAddr + TX_mask); writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb); writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb); writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb); writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb); break; case 24: writew(C320p24rx_mask, ofsAddr + RX_mask); writew(C320p24tx_mask, ofsAddr + TX_mask); writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb); writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb); writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb); writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); break; case 32: writew(C320p32rx_mask, ofsAddr + RX_mask); writew(C320p32tx_mask, ofsAddr + TX_mask); writew(C320p32tx_ofs, ofsAddr + Ofs_txb); writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb); writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb); writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb); writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb); break; } } break; } |
037182346 Char: moxa, add f... |
703 704 705 706 707 |
return 0; } static int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw) { |
2bca76e89 Fix a const assig... |
708 |
const void *ptr = fw->data; |
037182346 Char: moxa, add f... |
709 710 711 712 713 714 715 716 717 718 719 720 |
char rsn[64]; u16 lens[5]; size_t len; unsigned int a, lenp, lencnt; int ret = -EINVAL; struct { __le32 magic; /* 0x34303430 */ u8 reserved1[2]; u8 type; /* UNIX = 3 */ u8 model; /* C218T=1, C320T=2, CP204=3 */ u8 reserved2[8]; __le16 len[5]; |
2bca76e89 Fix a const assig... |
721 |
} const *hdr = ptr; |
037182346 Char: moxa, add f... |
722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 |
BUILD_BUG_ON(ARRAY_SIZE(hdr->len) != ARRAY_SIZE(lens)); if (fw->size < MOXA_FW_HDRLEN) { strcpy(rsn, "too short (even header won't fit)"); goto err; } if (hdr->magic != cpu_to_le32(0x30343034)) { sprintf(rsn, "bad magic: %.8x", le32_to_cpu(hdr->magic)); goto err; } if (hdr->type != 3) { sprintf(rsn, "not for linux, type is %u", hdr->type); goto err; } if (moxa_check_fw_model(brd, hdr->model)) { sprintf(rsn, "not for this card, model is %u", hdr->model); goto err; } len = MOXA_FW_HDRLEN; lencnt = hdr->model == 2 ? 5 : 3; for (a = 0; a < ARRAY_SIZE(lens); a++) { lens[a] = le16_to_cpu(hdr->len[a]); if (lens[a] && len + lens[a] <= fw->size && moxa_check_fw(&fw->data[len])) |
eaa95a8da Char: moxa, littl... |
748 |
printk(KERN_WARNING "MOXA firmware: unexpected input " |
037182346 Char: moxa, add f... |
749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 |
"at offset %u, but going on ", (u32)len); if (!lens[a] && a < lencnt) { sprintf(rsn, "too few entries in fw file"); goto err; } len += lens[a]; } if (len != fw->size) { sprintf(rsn, "bad length: %u (should be %u)", (u32)fw->size, (u32)len); goto err; } ptr += MOXA_FW_HDRLEN; lenp = 0; /* bios */ strcpy(rsn, "read above"); ret = moxa_load_bios(brd, ptr, lens[lenp]); if (ret) goto err; /* we skip the tty section (lens[1]), since we don't need it */ ptr += lens[lenp] + lens[lenp + 1]; lenp += 2; /* comm */ if (hdr->model == 2) { ret = moxa_load_320b(brd, ptr, lens[lenp]); if (ret) goto err; /* skip another tty */ ptr += lens[lenp] + lens[lenp + 1]; lenp += 2; } ret = moxa_load_code(brd, ptr, lens[lenp]); if (ret) goto err; return 0; err: printk(KERN_ERR "firmware failed to load, reason: %s ", rsn); return ret; } static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev) { const struct firmware *fw; const char *file; |
810ab09b2 Char: moxa, centr... |
801 |
struct moxa_port *p; |
793be8984 TTY: moxa, conver... |
802 |
unsigned int i, first_idx; |
037182346 Char: moxa, add f... |
803 |
int ret; |
810ab09b2 Char: moxa, centr... |
804 805 806 807 808 809 810 811 812 813 |
brd->ports = kcalloc(MAX_PORTS_PER_BOARD, sizeof(*brd->ports), GFP_KERNEL); if (brd->ports == NULL) { printk(KERN_ERR "cannot allocate memory for ports "); ret = -ENOMEM; goto err; } for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) { |
44b7d1b37 tty: add more tty... |
814 |
tty_port_init(&p->port); |
31f35939d tty_port: Add a p... |
815 |
p->port.ops = &moxa_port_ops; |
810ab09b2 Char: moxa, centr... |
816 |
p->type = PORT_16550A; |
810ab09b2 Char: moxa, centr... |
817 |
p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; |
810ab09b2 Char: moxa, centr... |
818 |
} |
037182346 Char: moxa, add f... |
819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 |
switch (brd->boardType) { case MOXA_BOARD_C218_ISA: case MOXA_BOARD_C218_PCI: file = "c218tunx.cod"; break; case MOXA_BOARD_CP204J: file = "cp204unx.cod"; break; default: file = "c320tunx.cod"; break; } ret = request_firmware(&fw, file, dev); if (ret) { |
ec09cd562 Char: moxa, add f... |
834 835 836 837 838 |
printk(KERN_ERR "MOXA: request_firmware failed. Make sure " "you've placed '%s' file into your firmware " "loader directory (e.g. /lib/firmware) ", file); |
810ab09b2 Char: moxa, centr... |
839 |
goto err_free; |
037182346 Char: moxa, add f... |
840 841 842 843 844 |
} ret = moxa_load_fw(brd, fw); release_firmware(fw); |
810ab09b2 Char: moxa, centr... |
845 846 847 |
if (ret) goto err_free; |
2a5413416 Char: moxa, seria... |
848 |
spin_lock_bh(&moxa_lock); |
810ab09b2 Char: moxa, centr... |
849 |
brd->ready = 1; |
0bcc4caad Char: moxa, timer... |
850 851 |
if (!timer_pending(&moxaTimer)) mod_timer(&moxaTimer, jiffies + HZ / 50); |
2a5413416 Char: moxa, seria... |
852 |
spin_unlock_bh(&moxa_lock); |
0bcc4caad Char: moxa, timer... |
853 |
|
793be8984 TTY: moxa, conver... |
854 855 856 857 |
first_idx = (brd - moxa_boards) * MAX_PORTS_PER_BOARD; for (i = 0; i < brd->numPorts; i++) tty_port_register_device(&brd->ports[i].port, moxaDriver, first_idx + i, dev); |
810ab09b2 Char: moxa, centr... |
858 859 |
return 0; err_free: |
191c5f102 TTY: call tty_por... |
860 861 |
for (i = 0; i < MAX_PORTS_PER_BOARD; i++) tty_port_destroy(&brd->ports[i].port); |
810ab09b2 Char: moxa, centr... |
862 863 |
kfree(brd->ports); err: |
037182346 Char: moxa, add f... |
864 865 |
return ret; } |
810ab09b2 Char: moxa, centr... |
866 867 |
static void moxa_board_deinit(struct moxa_board_conf *brd) { |
793be8984 TTY: moxa, conver... |
868 |
unsigned int a, opened, first_idx; |
a8f5cda06 Char: moxa, rewor... |
869 870 |
mutex_lock(&moxa_openlock); |
7bcf97d1d Char: moxa, merge... |
871 |
spin_lock_bh(&moxa_lock); |
810ab09b2 Char: moxa, centr... |
872 |
brd->ready = 0; |
7bcf97d1d Char: moxa, merge... |
873 |
spin_unlock_bh(&moxa_lock); |
a8f5cda06 Char: moxa, rewor... |
874 875 876 |
/* pci hot-un-plug support */ for (a = 0; a < brd->numPorts; a++) |
d41861ca1 tty: Replace ASYN... |
877 |
if (tty_port_initialized(&brd->ports[a].port)) |
aa27a094e TTY: add tty_port... |
878 |
tty_port_tty_hangup(&brd->ports[a].port, false); |
191c5f102 TTY: call tty_por... |
879 880 |
for (a = 0; a < MAX_PORTS_PER_BOARD; a++) tty_port_destroy(&brd->ports[a].port); |
aa27a094e TTY: add tty_port... |
881 |
|
a8f5cda06 Char: moxa, rewor... |
882 883 884 |
while (1) { opened = 0; for (a = 0; a < brd->numPorts; a++) |
d41861ca1 tty: Replace ASYN... |
885 |
if (tty_port_initialized(&brd->ports[a].port)) |
a8f5cda06 Char: moxa, rewor... |
886 887 888 889 890 891 892 |
opened++; mutex_unlock(&moxa_openlock); if (!opened) break; msleep(50); mutex_lock(&moxa_openlock); } |
793be8984 TTY: moxa, conver... |
893 894 895 |
first_idx = (brd - moxa_boards) * MAX_PORTS_PER_BOARD; for (a = 0; a < brd->numPorts; a++) tty_unregister_device(moxaDriver, first_idx + a); |
810ab09b2 Char: moxa, centr... |
896 897 898 899 |
iounmap(brd->basemem); brd->basemem = NULL; kfree(brd->ports); } |
1da177e4c Linux-2.6.12-rc2 |
900 |
#ifdef CONFIG_PCI |
9671f0992 tty: remove use o... |
901 |
static int moxa_pci_probe(struct pci_dev *pdev, |
9cde5bf02 [PATCH] Char: mox... |
902 |
const struct pci_device_id *ent) |
1da177e4c Linux-2.6.12-rc2 |
903 |
{ |
9cde5bf02 [PATCH] Char: mox... |
904 905 906 907 908 909 |
struct moxa_board_conf *board; unsigned int i; int board_type = ent->driver_data; int retval; retval = pci_enable_device(pdev); |
7aeb95daf Char: moxa, clean... |
910 911 912 |
if (retval) { dev_err(&pdev->dev, "can't enable pci device "); |
9cde5bf02 [PATCH] Char: mox... |
913 |
goto err; |
7aeb95daf Char: moxa, clean... |
914 |
} |
9cde5bf02 [PATCH] Char: mox... |
915 916 917 918 919 920 921 |
for (i = 0; i < MAX_BOARDS; i++) if (moxa_boards[i].basemem == NULL) break; retval = -ENODEV; if (i >= MAX_BOARDS) { |
7aeb95daf Char: moxa, clean... |
922 |
dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards " |
9cde5bf02 [PATCH] Char: mox... |
923 924 925 926 927 928 |
"found. Board is ignored. ", MAX_BOARDS); goto err; } board = &moxa_boards[i]; |
e46a5e3ff Char: moxa, pci i... |
929 930 931 932 933 934 935 |
retval = pci_request_region(pdev, 2, "moxa-base"); if (retval) { dev_err(&pdev->dev, "can't request pci region 2 "); goto err; } |
4bdc0d676 remove ioremap_no... |
936 |
board->basemem = ioremap(pci_resource_start(pdev, 2), 0x4000); |
7aeb95daf Char: moxa, clean... |
937 938 939 |
if (board->basemem == NULL) { dev_err(&pdev->dev, "can't remap io space 2 "); |
386d95b3a drivers/tty/moxa.... |
940 |
retval = -ENOMEM; |
e46a5e3ff Char: moxa, pci i... |
941 |
goto err_reg; |
7aeb95daf Char: moxa, clean... |
942 |
} |
9cde5bf02 [PATCH] Char: mox... |
943 |
|
1da177e4c Linux-2.6.12-rc2 |
944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 |
board->boardType = board_type; switch (board_type) { case MOXA_BOARD_C218_ISA: case MOXA_BOARD_C218_PCI: board->numPorts = 8; break; case MOXA_BOARD_CP204J: board->numPorts = 4; break; default: board->numPorts = 0; break; } board->busType = MOXA_BUS_TYPE_PCI; |
a784bf7c1 [PATCH] Char: mox... |
959 |
|
037182346 Char: moxa, add f... |
960 961 962 |
retval = moxa_init_board(board, &pdev->dev); if (retval) goto err_base; |
9cde5bf02 [PATCH] Char: mox... |
963 |
pci_set_drvdata(pdev, board); |
1da177e4c Linux-2.6.12-rc2 |
964 |
|
bb9f910a1 Char: moxa, notif... |
965 966 967 |
dev_info(&pdev->dev, "board '%s' ready (%u ports, firmware loaded) ", moxa_brdname[board_type - 1], board->numPorts); |
eaa95a8da Char: moxa, littl... |
968 |
return 0; |
037182346 Char: moxa, add f... |
969 970 971 |
err_base: iounmap(board->basemem); board->basemem = NULL; |
e46a5e3ff Char: moxa, pci i... |
972 973 |
err_reg: pci_release_region(pdev, 2); |
9cde5bf02 [PATCH] Char: mox... |
974 975 976 |
err: return retval; } |
ae8d8a146 tty: remove use o... |
977 |
static void moxa_pci_remove(struct pci_dev *pdev) |
9cde5bf02 [PATCH] Char: mox... |
978 979 |
{ struct moxa_board_conf *brd = pci_get_drvdata(pdev); |
810ab09b2 Char: moxa, centr... |
980 |
moxa_board_deinit(brd); |
e46a5e3ff Char: moxa, pci i... |
981 |
pci_release_region(pdev, 2); |
1da177e4c Linux-2.6.12-rc2 |
982 |
} |
a784bf7c1 [PATCH] Char: mox... |
983 984 985 986 987 |
static struct pci_driver moxa_pci_driver = { .name = "moxa", .id_table = moxa_pcibrds, .probe = moxa_pci_probe, |
91116cba5 tty: remove use o... |
988 |
.remove = moxa_pci_remove |
a784bf7c1 [PATCH] Char: mox... |
989 |
}; |
1da177e4c Linux-2.6.12-rc2 |
990 991 992 993 |
#endif /* CONFIG_PCI */ static int __init moxa_init(void) { |
810ab09b2 Char: moxa, centr... |
994 |
unsigned int isabrds = 0; |
d353eca4e Char: moxa, clean... |
995 |
int retval = 0; |
c6fc826e4 tty: moxa: remove... |
996 997 |
struct moxa_board_conf *brd = moxa_boards; unsigned int i; |
1da177e4c Linux-2.6.12-rc2 |
998 |
|
7aeb95daf Char: moxa, clean... |
999 1000 1001 |
printk(KERN_INFO "MOXA Intellio family driver version %s ", MOXA_VERSION); |
793be8984 TTY: moxa, conver... |
1002 1003 1004 1005 1006 1007 |
tty_port_init(&moxa_service_port); moxaDriver = tty_alloc_driver(MAX_PORTS + 1, TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV); |
c3a6344ae TTY: tty_alloc_dr... |
1008 1009 |
if (IS_ERR(moxaDriver)) return PTR_ERR(moxaDriver); |
1da177e4c Linux-2.6.12-rc2 |
1010 |
|
9b4e3b13b [SERIAL] Fix moxa... |
1011 |
moxaDriver->name = "ttyMX"; |
1da177e4c Linux-2.6.12-rc2 |
1012 1013 1014 1015 1016 |
moxaDriver->major = ttymajor; moxaDriver->minor_start = 0; moxaDriver->type = TTY_DRIVER_TYPE_SERIAL; moxaDriver->subtype = SERIAL_TYPE_NORMAL; moxaDriver->init_termios = tty_std_termios; |
1da177e4c Linux-2.6.12-rc2 |
1017 |
moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL; |
606d099cd [PATCH] tty: swit... |
1018 1019 |
moxaDriver->init_termios.c_ispeed = 9600; moxaDriver->init_termios.c_ospeed = 9600; |
1da177e4c Linux-2.6.12-rc2 |
1020 |
tty_set_operations(moxaDriver, &moxa_ops); |
793be8984 TTY: moxa, conver... |
1021 1022 |
/* Having one more port only for ioctls is ugly */ tty_port_link_device(&moxa_service_port, moxaDriver, MAX_PORTS); |
1da177e4c Linux-2.6.12-rc2 |
1023 |
|
1da177e4c Linux-2.6.12-rc2 |
1024 |
if (tty_register_driver(moxaDriver)) { |
eaa95a8da Char: moxa, littl... |
1025 1026 |
printk(KERN_ERR "can't register MOXA Smartio tty driver! "); |
1da177e4c Linux-2.6.12-rc2 |
1027 1028 1029 |
put_tty_driver(moxaDriver); return -1; } |
1da177e4c Linux-2.6.12-rc2 |
1030 |
|
d353eca4e Char: moxa, clean... |
1031 |
/* Find the boards defined from module args. */ |
c6fc826e4 tty: moxa: remove... |
1032 |
|
1da177e4c Linux-2.6.12-rc2 |
1033 |
for (i = 0; i < MAX_BOARDS; i++) { |
d353eca4e Char: moxa, clean... |
1034 1035 1036 1037 |
if (!baseaddr[i]) break; if (type[i] == MOXA_BOARD_C218_ISA || type[i] == MOXA_BOARD_C320_ISA) { |
7aeb95daf Char: moxa, clean... |
1038 1039 |
pr_debug("Moxa board %2d: %s board(baseAddr=%lx) ", |
d353eca4e Char: moxa, clean... |
1040 1041 1042 1043 1044 1045 |
isabrds + 1, moxa_brdname[type[i] - 1], baseaddr[i]); brd->boardType = type[i]; brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 : numports[i]; brd->busType = MOXA_BUS_TYPE_ISA; |
4bdc0d676 remove ioremap_no... |
1046 |
brd->basemem = ioremap(baseaddr[i], 0x4000); |
d353eca4e Char: moxa, clean... |
1047 |
if (!brd->basemem) { |
eaa95a8da Char: moxa, littl... |
1048 1049 |
printk(KERN_ERR "MOXA: can't remap %lx ", |
d353eca4e Char: moxa, clean... |
1050 |
baseaddr[i]); |
1da177e4c Linux-2.6.12-rc2 |
1051 1052 |
continue; } |
037182346 Char: moxa, add f... |
1053 1054 1055 1056 1057 |
if (moxa_init_board(brd, NULL)) { iounmap(brd->basemem); brd->basemem = NULL; continue; } |
d353eca4e Char: moxa, clean... |
1058 |
|
e0525393b TTY: fix decimal ... |
1059 |
printk(KERN_INFO "MOXA isa board found at 0x%.8lx and " |
bb9f910a1 Char: moxa, notif... |
1060 1061 1062 |
"ready (%u ports, firmware loaded) ", baseaddr[i], brd->numPorts); |
d353eca4e Char: moxa, clean... |
1063 1064 |
brd++; isabrds++; |
1da177e4c Linux-2.6.12-rc2 |
1065 1066 |
} } |
a784bf7c1 [PATCH] Char: mox... |
1067 |
|
1da177e4c Linux-2.6.12-rc2 |
1068 |
#ifdef CONFIG_PCI |
a784bf7c1 [PATCH] Char: mox... |
1069 1070 |
retval = pci_register_driver(&moxa_pci_driver); if (retval) { |
eaa95a8da Char: moxa, littl... |
1071 1072 |
printk(KERN_ERR "Can't register MOXA pci driver! "); |
d353eca4e Char: moxa, clean... |
1073 |
if (isabrds) |
a784bf7c1 [PATCH] Char: mox... |
1074 |
retval = 0; |
1da177e4c Linux-2.6.12-rc2 |
1075 1076 |
} #endif |
a784bf7c1 [PATCH] Char: mox... |
1077 |
|
a784bf7c1 [PATCH] Char: mox... |
1078 |
return retval; |
1da177e4c Linux-2.6.12-rc2 |
1079 1080 1081 1082 |
} static void __exit moxa_exit(void) { |
eaa95a8da Char: moxa, littl... |
1083 |
unsigned int i; |
1da177e4c Linux-2.6.12-rc2 |
1084 |
|
9cde5bf02 [PATCH] Char: mox... |
1085 |
#ifdef CONFIG_PCI |
a784bf7c1 [PATCH] Char: mox... |
1086 |
pci_unregister_driver(&moxa_pci_driver); |
9cde5bf02 [PATCH] Char: mox... |
1087 |
#endif |
a784bf7c1 [PATCH] Char: mox... |
1088 |
|
810ab09b2 Char: moxa, centr... |
1089 1090 1091 |
for (i = 0; i < MAX_BOARDS; i++) /* ISA boards */ if (moxa_boards[i].ready) moxa_board_deinit(&moxa_boards[i]); |
2a5413416 Char: moxa, seria... |
1092 1093 1094 1095 1096 1097 1098 1099 |
del_timer_sync(&moxaTimer); if (tty_unregister_driver(moxaDriver)) printk(KERN_ERR "Couldn't unregister MOXA Intellio family " "serial driver "); put_tty_driver(moxaDriver); |
1da177e4c Linux-2.6.12-rc2 |
1100 1101 1102 1103 |
} module_init(moxa_init); module_exit(moxa_exit); |
f176178ba tty: moxa: Use mo... |
1104 |
static void moxa_shutdown(struct tty_port *port) |
a8f5cda06 Char: moxa, rewor... |
1105 |
{ |
f176178ba tty: moxa: Use mo... |
1106 1107 |
struct moxa_port *ch = container_of(port, struct moxa_port, port); MoxaPortDisable(ch); |
a8f5cda06 Char: moxa, rewor... |
1108 |
MoxaPortFlushData(ch, 2); |
a8f5cda06 Char: moxa, rewor... |
1109 |
} |
31f35939d tty_port: Add a p... |
1110 1111 1112 1113 |
static int moxa_carrier_raised(struct tty_port *port) { struct moxa_port *ch = container_of(port, struct moxa_port, port); int dcd; |
8482bcd58 tty: moxa: Fix mo... |
1114 |
spin_lock_irq(&port->lock); |
31f35939d tty_port: Add a p... |
1115 |
dcd = ch->DCDState; |
8482bcd58 tty: moxa: Fix mo... |
1116 |
spin_unlock_irq(&port->lock); |
31f35939d tty_port: Add a p... |
1117 1118 |
return dcd; } |
f176178ba tty: moxa: Use mo... |
1119 |
static void moxa_dtr_rts(struct tty_port *port, int onoff) |
a8f5cda06 Char: moxa, rewor... |
1120 |
{ |
f176178ba tty: moxa: Use mo... |
1121 1122 |
struct moxa_port *ch = container_of(port, struct moxa_port, port); MoxaPortLineCtrl(ch, onoff, onoff); |
a8f5cda06 Char: moxa, rewor... |
1123 |
} |
f176178ba tty: moxa: Use mo... |
1124 |
|
1da177e4c Linux-2.6.12-rc2 |
1125 1126 |
static int moxa_open(struct tty_struct *tty, struct file *filp) { |
810ab09b2 Char: moxa, centr... |
1127 |
struct moxa_board_conf *brd; |
8f8ecbad0 [PATCH] Char: mox... |
1128 |
struct moxa_port *ch; |
1da177e4c Linux-2.6.12-rc2 |
1129 |
int port; |
1da177e4c Linux-2.6.12-rc2 |
1130 |
|
11324edd4 [PATCH] Char: mox... |
1131 |
port = tty->index; |
1da177e4c Linux-2.6.12-rc2 |
1132 |
if (port == MAX_PORTS) { |
74d7d97b9 Char: moxa, ioctl... |
1133 |
return capable(CAP_SYS_ADMIN) ? 0 : -EPERM; |
1da177e4c Linux-2.6.12-rc2 |
1134 |
} |
a8f5cda06 Char: moxa, rewor... |
1135 1136 |
if (mutex_lock_interruptible(&moxa_openlock)) return -ERESTARTSYS; |
810ab09b2 Char: moxa, centr... |
1137 |
brd = &moxa_boards[port / MAX_PORTS_PER_BOARD]; |
a8f5cda06 Char: moxa, rewor... |
1138 1139 |
if (!brd->ready) { mutex_unlock(&moxa_openlock); |
810ab09b2 Char: moxa, centr... |
1140 |
return -ENODEV; |
a8f5cda06 Char: moxa, rewor... |
1141 |
} |
1da177e4c Linux-2.6.12-rc2 |
1142 |
|
f0e852772 moxa: prevent ope... |
1143 1144 1145 1146 |
if (port % MAX_PORTS_PER_BOARD >= brd->numPorts) { mutex_unlock(&moxa_openlock); return -ENODEV; } |
810ab09b2 Char: moxa, centr... |
1147 |
ch = &brd->ports[port % MAX_PORTS_PER_BOARD]; |
9de6a51fe moxa: use tty_port |
1148 |
ch->port.count++; |
1da177e4c Linux-2.6.12-rc2 |
1149 |
tty->driver_data = ch; |
d450b5a01 tty: kref usage f... |
1150 |
tty_port_tty_set(&ch->port, tty); |
f176178ba tty: moxa: Use mo... |
1151 |
mutex_lock(&ch->port.mutex); |
d41861ca1 tty: Replace ASYN... |
1152 |
if (!tty_port_initialized(&ch->port)) { |
1da177e4c Linux-2.6.12-rc2 |
1153 |
ch->statusflags = 0; |
adc8d746c tty: move the ter... |
1154 |
moxa_set_tty_param(tty, &tty->termios); |
b4173f457 Char: moxa, remov... |
1155 1156 |
MoxaPortLineCtrl(ch, 1, 1); MoxaPortEnable(ch); |
a8f5cda06 Char: moxa, rewor... |
1157 |
MoxaSetFifo(ch, ch->type == PORT_16550A); |
d41861ca1 tty: Replace ASYN... |
1158 |
tty_port_set_initialized(&ch->port, 1); |
1da177e4c Linux-2.6.12-rc2 |
1159 |
} |
f176178ba tty: moxa: Use mo... |
1160 |
mutex_unlock(&ch->port.mutex); |
a8f5cda06 Char: moxa, rewor... |
1161 |
mutex_unlock(&moxa_openlock); |
1da177e4c Linux-2.6.12-rc2 |
1162 |
|
7c31bdb6b Char: moxa, do no... |
1163 |
return tty_port_block_til_ready(&ch->port, tty, filp); |
1da177e4c Linux-2.6.12-rc2 |
1164 1165 1166 1167 |
} static void moxa_close(struct tty_struct *tty, struct file *filp) { |
f176178ba tty: moxa: Use mo... |
1168 |
struct moxa_port *ch = tty->driver_data; |
adc8d746c tty: move the ter... |
1169 |
ch->cflag = tty->termios.c_cflag; |
f176178ba tty: moxa: Use mo... |
1170 |
tty_port_close(&ch->port, tty, filp); |
1da177e4c Linux-2.6.12-rc2 |
1171 1172 1173 1174 1175 |
} static int moxa_write(struct tty_struct *tty, const unsigned char *buf, int count) { |
b4173f457 Char: moxa, remov... |
1176 |
struct moxa_port *ch = tty->driver_data; |
0ad7c9af3 Char: moxa, fix l... |
1177 |
unsigned long flags; |
b4173f457 Char: moxa, remov... |
1178 |
int len; |
1da177e4c Linux-2.6.12-rc2 |
1179 |
|
1da177e4c Linux-2.6.12-rc2 |
1180 |
if (ch == NULL) |
b4173f457 Char: moxa, remov... |
1181 |
return 0; |
33f0f88f1 [PATCH] TTY layer... |
1182 |
|
0ad7c9af3 Char: moxa, fix l... |
1183 |
spin_lock_irqsave(&moxa_lock, flags); |
d450b5a01 tty: kref usage f... |
1184 |
len = MoxaPortWriteData(tty, buf, count); |
0ad7c9af3 Char: moxa, fix l... |
1185 |
spin_unlock_irqrestore(&moxa_lock, flags); |
1da177e4c Linux-2.6.12-rc2 |
1186 |
|
a808ac0c4 tty: moxa: Lockin... |
1187 |
set_bit(LOWWAIT, &ch->statusflags); |
eaa95a8da Char: moxa, littl... |
1188 |
return len; |
1da177e4c Linux-2.6.12-rc2 |
1189 1190 1191 1192 |
} static int moxa_write_room(struct tty_struct *tty) { |
8f8ecbad0 [PATCH] Char: mox... |
1193 |
struct moxa_port *ch; |
1da177e4c Linux-2.6.12-rc2 |
1194 1195 |
if (tty->stopped) |
eaa95a8da Char: moxa, littl... |
1196 |
return 0; |
b4173f457 Char: moxa, remov... |
1197 |
ch = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1198 |
if (ch == NULL) |
eaa95a8da Char: moxa, littl... |
1199 |
return 0; |
b4173f457 Char: moxa, remov... |
1200 |
return MoxaPortTxFree(ch); |
1da177e4c Linux-2.6.12-rc2 |
1201 1202 1203 1204 |
} static void moxa_flush_buffer(struct tty_struct *tty) { |
b4173f457 Char: moxa, remov... |
1205 |
struct moxa_port *ch = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1206 1207 1208 |
if (ch == NULL) return; |
b4173f457 Char: moxa, remov... |
1209 |
MoxaPortFlushData(ch, 1); |
1da177e4c Linux-2.6.12-rc2 |
1210 1211 1212 1213 1214 |
tty_wakeup(tty); } static int moxa_chars_in_buffer(struct tty_struct *tty) { |
b4173f457 Char: moxa, remov... |
1215 |
struct moxa_port *ch = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1216 |
int chars; |
1da177e4c Linux-2.6.12-rc2 |
1217 |
|
b4173f457 Char: moxa, remov... |
1218 |
chars = MoxaPortTxQueue(ch); |
f710ebd7f tty: moxa: Kill t... |
1219 |
if (chars) |
1da177e4c Linux-2.6.12-rc2 |
1220 1221 1222 1223 |
/* * Make it possible to wakeup anything waiting for output * in tty_ioctl.c, etc. */ |
f710ebd7f tty: moxa: Kill t... |
1224 |
set_bit(EMPTYWAIT, &ch->statusflags); |
eaa95a8da Char: moxa, littl... |
1225 |
return chars; |
1da177e4c Linux-2.6.12-rc2 |
1226 |
} |
60b33c133 tiocmget: kill of... |
1227 |
static int moxa_tiocmget(struct tty_struct *tty) |
1da177e4c Linux-2.6.12-rc2 |
1228 |
{ |
8482bcd58 tty: moxa: Fix mo... |
1229 |
struct moxa_port *ch = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1230 |
int flag = 0, dtr, rts; |
b4173f457 Char: moxa, remov... |
1231 |
MoxaPortGetLineOut(ch, &dtr, &rts); |
1da177e4c Linux-2.6.12-rc2 |
1232 1233 1234 1235 |
if (dtr) flag |= TIOCM_DTR; if (rts) flag |= TIOCM_RTS; |
b4173f457 Char: moxa, remov... |
1236 |
dtr = MoxaPortLineStatus(ch); |
1da177e4c Linux-2.6.12-rc2 |
1237 1238 1239 1240 1241 1242 1243 1244 |
if (dtr & 1) flag |= TIOCM_CTS; if (dtr & 2) flag |= TIOCM_DSR; if (dtr & 4) flag |= TIOCM_CD; return flag; } |
20b9d1771 tiocmset: kill th... |
1245 |
static int moxa_tiocmset(struct tty_struct *tty, |
1da177e4c Linux-2.6.12-rc2 |
1246 1247 |
unsigned int set, unsigned int clear) { |
a8f5cda06 Char: moxa, rewor... |
1248 |
struct moxa_port *ch; |
1da177e4c Linux-2.6.12-rc2 |
1249 |
int dtr, rts; |
a8f5cda06 Char: moxa, rewor... |
1250 1251 1252 1253 |
mutex_lock(&moxa_openlock); ch = tty->driver_data; if (!ch) { mutex_unlock(&moxa_openlock); |
74d7d97b9 Char: moxa, ioctl... |
1254 |
return -EINVAL; |
a8f5cda06 Char: moxa, rewor... |
1255 |
} |
1da177e4c Linux-2.6.12-rc2 |
1256 |
|
b4173f457 Char: moxa, remov... |
1257 |
MoxaPortGetLineOut(ch, &dtr, &rts); |
1da177e4c Linux-2.6.12-rc2 |
1258 1259 1260 1261 1262 1263 1264 1265 |
if (set & TIOCM_RTS) rts = 1; if (set & TIOCM_DTR) dtr = 1; if (clear & TIOCM_RTS) rts = 0; if (clear & TIOCM_DTR) dtr = 0; |
b4173f457 Char: moxa, remov... |
1266 |
MoxaPortLineCtrl(ch, dtr, rts); |
a8f5cda06 Char: moxa, rewor... |
1267 |
mutex_unlock(&moxa_openlock); |
1da177e4c Linux-2.6.12-rc2 |
1268 1269 |
return 0; } |
1da177e4c Linux-2.6.12-rc2 |
1270 |
static void moxa_set_termios(struct tty_struct *tty, |
eaa95a8da Char: moxa, littl... |
1271 |
struct ktermios *old_termios) |
1da177e4c Linux-2.6.12-rc2 |
1272 |
{ |
eaa95a8da Char: moxa, littl... |
1273 |
struct moxa_port *ch = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1274 1275 1276 |
if (ch == NULL) return; |
db1acaa63 moxa: first pass ... |
1277 |
moxa_set_tty_param(tty, old_termios); |
eaa95a8da Char: moxa, littl... |
1278 |
if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty)) |
9de6a51fe moxa: use tty_port |
1279 |
wake_up_interruptible(&ch->port.open_wait); |
1da177e4c Linux-2.6.12-rc2 |
1280 1281 1282 1283 |
} static void moxa_stop(struct tty_struct *tty) { |
eaa95a8da Char: moxa, littl... |
1284 |
struct moxa_port *ch = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1285 1286 1287 |
if (ch == NULL) return; |
b4173f457 Char: moxa, remov... |
1288 |
MoxaPortTxDisable(ch); |
a808ac0c4 tty: moxa: Lockin... |
1289 |
set_bit(TXSTOPPED, &ch->statusflags); |
1da177e4c Linux-2.6.12-rc2 |
1290 1291 1292 1293 1294 |
} static void moxa_start(struct tty_struct *tty) { |
eaa95a8da Char: moxa, littl... |
1295 |
struct moxa_port *ch = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1296 1297 1298 |
if (ch == NULL) return; |
58112dfbf tty: moxa: fix bi... |
1299 |
if (!test_bit(TXSTOPPED, &ch->statusflags)) |
1da177e4c Linux-2.6.12-rc2 |
1300 |
return; |
b4173f457 Char: moxa, remov... |
1301 |
MoxaPortTxEnable(ch); |
a808ac0c4 tty: moxa: Lockin... |
1302 |
clear_bit(TXSTOPPED, &ch->statusflags); |
1da177e4c Linux-2.6.12-rc2 |
1303 1304 1305 1306 |
} static void moxa_hangup(struct tty_struct *tty) { |
a808ac0c4 tty: moxa: Lockin... |
1307 |
struct moxa_port *ch = tty->driver_data; |
f176178ba tty: moxa: Use mo... |
1308 |
tty_port_hangup(&ch->port); |
1da177e4c Linux-2.6.12-rc2 |
1309 |
} |
7bcf97d1d Char: moxa, merge... |
1310 |
static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd) |
1da177e4c Linux-2.6.12-rc2 |
1311 |
{ |
8482bcd58 tty: moxa: Fix mo... |
1312 |
unsigned long flags; |
7bcf97d1d Char: moxa, merge... |
1313 |
dcd = !!dcd; |
1da177e4c Linux-2.6.12-rc2 |
1314 |
|
8482bcd58 tty: moxa: Fix mo... |
1315 |
spin_lock_irqsave(&p->port.lock, flags); |
d450b5a01 tty: kref usage f... |
1316 |
if (dcd != p->DCDState) { |
8482bcd58 tty: moxa: Fix mo... |
1317 1318 |
p->DCDState = dcd; spin_unlock_irqrestore(&p->port.lock, flags); |
aa27a094e TTY: add tty_port... |
1319 1320 |
if (!dcd) tty_port_tty_hangup(&p->port, true); |
7bcf97d1d Char: moxa, merge... |
1321 |
} |
8482bcd58 tty: moxa: Fix mo... |
1322 1323 |
else spin_unlock_irqrestore(&p->port.lock, flags); |
7bcf97d1d Char: moxa, merge... |
1324 |
} |
1da177e4c Linux-2.6.12-rc2 |
1325 |
|
7bcf97d1d Char: moxa, merge... |
1326 1327 1328 |
static int moxa_poll_port(struct moxa_port *p, unsigned int handle, u16 __iomem *ip) { |
d450b5a01 tty: kref usage f... |
1329 |
struct tty_struct *tty = tty_port_tty_get(&p->port); |
7bcf97d1d Char: moxa, merge... |
1330 |
void __iomem *ofsAddr; |
d41861ca1 tty: Replace ASYN... |
1331 |
unsigned int inited = tty_port_initialized(&p->port); |
7bcf97d1d Char: moxa, merge... |
1332 1333 1334 |
u16 intr; if (tty) { |
a808ac0c4 tty: moxa: Lockin... |
1335 |
if (test_bit(EMPTYWAIT, &p->statusflags) && |
7bcf97d1d Char: moxa, merge... |
1336 |
MoxaPortTxQueue(p) == 0) { |
a808ac0c4 tty: moxa: Lockin... |
1337 |
clear_bit(EMPTYWAIT, &p->statusflags); |
7bcf97d1d Char: moxa, merge... |
1338 1339 |
tty_wakeup(tty); } |
a808ac0c4 tty: moxa: Lockin... |
1340 |
if (test_bit(LOWWAIT, &p->statusflags) && !tty->stopped && |
7bcf97d1d Char: moxa, merge... |
1341 |
MoxaPortTxQueue(p) <= WAKEUP_CHARS) { |
a808ac0c4 tty: moxa: Lockin... |
1342 |
clear_bit(LOWWAIT, &p->statusflags); |
7bcf97d1d Char: moxa, merge... |
1343 1344 |
tty_wakeup(tty); } |
97ef38b82 tty: Replace TTY_... |
1345 |
if (inited && !tty_throttled(tty) && |
7bcf97d1d Char: moxa, merge... |
1346 1347 |
MoxaPortRxQueue(p) > 0) { /* RX */ MoxaPortReadData(p); |
6732c8bb8 TTY: switch tty_s... |
1348 |
tty_schedule_flip(&p->port); |
7bcf97d1d Char: moxa, merge... |
1349 1350 |
} } else { |
a808ac0c4 tty: moxa: Lockin... |
1351 |
clear_bit(EMPTYWAIT, &p->statusflags); |
7bcf97d1d Char: moxa, merge... |
1352 |
MoxaPortFlushData(p, 0); /* flush RX */ |
1da177e4c Linux-2.6.12-rc2 |
1353 |
} |
0bcc4caad Char: moxa, timer... |
1354 |
|
7bcf97d1d Char: moxa, merge... |
1355 |
if (!handle) /* nothing else to do */ |
0e0fd7d73 tty: moxa, fix re... |
1356 |
goto put; |
7bcf97d1d Char: moxa, merge... |
1357 1358 1359 |
intr = readw(ip); /* port irq status */ if (intr == 0) |
0e0fd7d73 tty: moxa, fix re... |
1360 |
goto put; |
7bcf97d1d Char: moxa, merge... |
1361 1362 1363 1364 1365 1366 1367 1368 |
writew(0, ip); /* ACK port */ ofsAddr = p->tableAddr; if (intr & IntrTx) /* disable tx intr */ writew(readw(ofsAddr + HostStat) & ~WakeupTx, ofsAddr + HostStat); if (!inited) |
0e0fd7d73 tty: moxa, fix re... |
1369 |
goto put; |
7bcf97d1d Char: moxa, merge... |
1370 1371 |
if (tty && (intr & IntrBreak) && !I_IGNBRK(tty)) { /* BREAK */ |
92a19f9ce TTY: switch tty_i... |
1372 |
tty_insert_flip_char(&p->port, 0, TTY_BREAK); |
6732c8bb8 TTY: switch tty_s... |
1373 |
tty_schedule_flip(&p->port); |
7bcf97d1d Char: moxa, merge... |
1374 1375 1376 1377 |
} if (intr & IntrLine) moxa_new_dcdstate(p, readb(ofsAddr + FlagStat) & DCD_state); |
0e0fd7d73 tty: moxa, fix re... |
1378 1379 |
put: tty_kref_put(tty); |
7bcf97d1d Char: moxa, merge... |
1380 1381 1382 |
return 0; } |
24ed960ab treewide: Switch ... |
1383 |
static void moxa_poll(struct timer_list *unused) |
7bcf97d1d Char: moxa, merge... |
1384 1385 1386 |
{ struct moxa_board_conf *brd; u16 __iomem *ip; |
2a5413416 Char: moxa, seria... |
1387 |
unsigned int card, port, served = 0; |
7bcf97d1d Char: moxa, merge... |
1388 1389 |
spin_lock(&moxa_lock); |
1da177e4c Linux-2.6.12-rc2 |
1390 |
for (card = 0; card < MAX_BOARDS; card++) { |
7bcf97d1d Char: moxa, merge... |
1391 1392 |
brd = &moxa_boards[card]; if (!brd->ready) |
1da177e4c Linux-2.6.12-rc2 |
1393 |
continue; |
7bcf97d1d Char: moxa, merge... |
1394 |
|
2a5413416 Char: moxa, seria... |
1395 |
served++; |
7bcf97d1d Char: moxa, merge... |
1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 |
ip = NULL; if (readb(brd->intPend) == 0xff) ip = brd->intTable + readb(brd->intNdx); for (port = 0; port < brd->numPorts; port++) moxa_poll_port(&brd->ports[port], !!ip, ip + port); if (ip) writeb(0, brd->intPend); /* ACK */ if (moxaLowWaterChk) { struct moxa_port *p = brd->ports; for (port = 0; port < brd->numPorts; port++, p++) if (p->lowChkFlag) { p->lowChkFlag = 0; moxa_low_water_check(p->tableAddr); |
1da177e4c Linux-2.6.12-rc2 |
1412 |
} |
1da177e4c Linux-2.6.12-rc2 |
1413 1414 |
} } |
7bcf97d1d Char: moxa, merge... |
1415 |
moxaLowWaterChk = 0; |
1da177e4c Linux-2.6.12-rc2 |
1416 |
|
2a5413416 Char: moxa, seria... |
1417 1418 1419 |
if (served) mod_timer(&moxaTimer, jiffies + HZ / 50); spin_unlock(&moxa_lock); |
1da177e4c Linux-2.6.12-rc2 |
1420 1421 1422 |
} /******************************************************************************/ |
db1acaa63 moxa: first pass ... |
1423 |
static void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios) |
1da177e4c Linux-2.6.12-rc2 |
1424 |
{ |
adc8d746c tty: move the ter... |
1425 |
register struct ktermios *ts = &tty->termios; |
eaa95a8da Char: moxa, littl... |
1426 |
struct moxa_port *ch = tty->driver_data; |
db1acaa63 moxa: first pass ... |
1427 |
int rts, cts, txflow, rxflow, xany, baud; |
1da177e4c Linux-2.6.12-rc2 |
1428 |
|
1da177e4c Linux-2.6.12-rc2 |
1429 1430 1431 1432 1433 1434 1435 1436 1437 |
rts = cts = txflow = rxflow = xany = 0; if (ts->c_cflag & CRTSCTS) rts = cts = 1; if (ts->c_iflag & IXON) txflow = 1; if (ts->c_iflag & IXOFF) rxflow = 1; if (ts->c_iflag & IXANY) xany = 1; |
db1acaa63 moxa: first pass ... |
1438 |
|
b4173f457 Char: moxa, remov... |
1439 1440 |
MoxaPortFlowCtrl(ch, rts, cts, txflow, rxflow, xany); baud = MoxaPortSetTermio(ch, ts, tty_get_baud_rate(tty)); |
db1acaa63 moxa: first pass ... |
1441 1442 1443 1444 |
if (baud == -1) baud = tty_termios_baud_rate(old_termios); /* Not put the baud rate into the termios data */ tty_encode_baud_rate(tty, baud, baud); |
1da177e4c Linux-2.6.12-rc2 |
1445 |
} |
1da177e4c Linux-2.6.12-rc2 |
1446 1447 |
/***************************************************************************** * Driver level functions: * |
1da177e4c Linux-2.6.12-rc2 |
1448 |
*****************************************************************************/ |
1da177e4c Linux-2.6.12-rc2 |
1449 |
|
b4173f457 Char: moxa, remov... |
1450 |
static void MoxaPortFlushData(struct moxa_port *port, int mode) |
1da177e4c Linux-2.6.12-rc2 |
1451 1452 |
{ void __iomem *ofsAddr; |
eaa95a8da Char: moxa, littl... |
1453 |
if (mode < 0 || mode > 2) |
1da177e4c Linux-2.6.12-rc2 |
1454 |
return; |
b4173f457 Char: moxa, remov... |
1455 |
ofsAddr = port->tableAddr; |
1da177e4c Linux-2.6.12-rc2 |
1456 1457 |
moxafunc(ofsAddr, FC_FlushQueue, mode); if (mode != 1) { |
b4173f457 Char: moxa, remov... |
1458 |
port->lowChkFlag = 0; |
6f56b658b Char: moxa, funct... |
1459 |
moxa_low_water_check(ofsAddr); |
1da177e4c Linux-2.6.12-rc2 |
1460 1461 |
} } |
1da177e4c Linux-2.6.12-rc2 |
1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 |
/* * Moxa Port Number Description: * * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And, * the port number using in MOXA driver functions will be 0 to 31 for * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96 * to 127 for fourth. For example, if you setup three MOXA boards, * first board is C218, second board is C320-16 and third board is * C320-32. The port number of first board (C218 - 8 ports) is from * 0 to 7. The port number of second board (C320 - 16 ports) is form * 32 to 47. The port number of third board (C320 - 32 ports) is from * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to * 127 will be invalid. * * * Moxa Functions Description: * * Function 1: Driver initialization routine, this routine must be * called when initialized driver. * Syntax: * void MoxaDriverInit(); * * * Function 2: Moxa driver private IOCTL command processing. * Syntax: * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port); * * unsigned int cmd : IOCTL command * unsigned long arg : IOCTL argument * int port : port number (0 - 127) * * return: 0 (OK) * -EINVAL * -ENOIOCTLCMD * * |
1da177e4c Linux-2.6.12-rc2 |
1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 |
* Function 6: Enable this port to start Tx/Rx data. * Syntax: * void MoxaPortEnable(int port); * int port : port number (0 - 127) * * * Function 7: Disable this port * Syntax: * void MoxaPortDisable(int port); * int port : port number (0 - 127) * * |
1da177e4c Linux-2.6.12-rc2 |
1510 1511 |
* Function 10: Setting baud rate of this port. * Syntax: |
08d01c792 Char: moxa, intro... |
1512 |
* speed_t MoxaPortSetBaud(int port, speed_t baud); |
1da177e4c Linux-2.6.12-rc2 |
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 |
* int port : port number (0 - 127) * long baud : baud rate (50 - 115200) * * return: 0 : this port is invalid or baud < 50 * 50 - 115200 : the real baud rate set to the port, if * the argument baud is large than maximun * available baud rate, the real setting * baud rate will be the maximun baud rate. * * |
1da177e4c Linux-2.6.12-rc2 |
1523 1524 |
* Function 12: Configure the port. * Syntax: |
606d099cd [PATCH] tty: swit... |
1525 |
* int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud); |
1da177e4c Linux-2.6.12-rc2 |
1526 |
* int port : port number (0 - 127) |
606d099cd [PATCH] tty: swit... |
1527 |
* struct ktermios * termio : termio structure pointer |
c7bce3097 [PATCH] serial: F... |
1528 |
* speed_t baud : baud rate |
1da177e4c Linux-2.6.12-rc2 |
1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 |
* * return: -1 : this port is invalid or termio == NULL * 0 : setting O.K. * * * Function 13: Get the DTR/RTS state of this port. * Syntax: * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState); * int port : port number (0 - 127) * int * dtrState : pointer to INT to receive the current DTR * state. (if NULL, this function will not * write to this address) * int * rtsState : pointer to INT to receive the current RTS * state. (if NULL, this function will not * write to this address) * * return: -1 : this port is invalid * 0 : O.K. * * * Function 14: Setting the DTR/RTS output state of this port. * Syntax: * void MoxaPortLineCtrl(int port, int dtrState, int rtsState); * int port : port number (0 - 127) * int dtrState : DTR output state (0: off, 1: on) * int rtsState : RTS output state (0: off, 1: on) * * * Function 15: Setting the flow control of this port. * Syntax: * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow, * int txFlow,int xany); * int port : port number (0 - 127) * int rtsFlow : H/W RTS flow control (0: no, 1: yes) * int ctsFlow : H/W CTS flow control (0: no, 1: yes) * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes) * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes) * int xany : S/W XANY flow control (0: no, 1: yes) * * * Function 16: Get ths line status of this port * Syntax: * int MoxaPortLineStatus(int port); * int port : port number (0 - 127) * * return: Bit 0 - CTS state (0: off, 1: on) * Bit 1 - DSR state (0: off, 1: on) * Bit 2 - DCD state (0: off, 1: on) * * |
1da177e4c Linux-2.6.12-rc2 |
1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 |
* Function 19: Flush the Rx/Tx buffer data of this port. * Syntax: * void MoxaPortFlushData(int port, int mode); * int port : port number (0 - 127) * int mode * 0 : flush the Rx buffer * 1 : flush the Tx buffer * 2 : flush the Rx and Tx buffer * * * Function 20: Write data. * Syntax: * int MoxaPortWriteData(int port, unsigned char * buffer, int length); * int port : port number (0 - 127) * unsigned char * buffer : pointer to write data buffer. * int length : write data length * * return: 0 - length : real write data length * * * Function 21: Read data. * Syntax: |
33f0f88f1 [PATCH] TTY layer... |
1601 |
* int MoxaPortReadData(int port, struct tty_struct *tty); |
1da177e4c Linux-2.6.12-rc2 |
1602 |
* int port : port number (0 - 127) |
33f0f88f1 [PATCH] TTY layer... |
1603 |
* struct tty_struct *tty : tty for data |
1da177e4c Linux-2.6.12-rc2 |
1604 1605 1606 1607 |
* * return: 0 - length : real read data length * * |
1da177e4c Linux-2.6.12-rc2 |
1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 |
* Function 24: Get the Tx buffer current queued data bytes * Syntax: * int MoxaPortTxQueue(int port); * int port : port number (0 - 127) * * return: .. : Tx buffer current queued data bytes * * * Function 25: Get the Tx buffer current free space * Syntax: * int MoxaPortTxFree(int port); * int port : port number (0 - 127) * * return: .. : Tx buffer current free space * * * Function 26: Get the Rx buffer current queued data bytes * Syntax: * int MoxaPortRxQueue(int port); * int port : port number (0 - 127) * * return: .. : Rx buffer current queued data bytes * * |
1da177e4c Linux-2.6.12-rc2 |
1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 |
* Function 28: Disable port data transmission. * Syntax: * void MoxaPortTxDisable(int port); * int port : port number (0 - 127) * * * Function 29: Enable port data transmission. * Syntax: * void MoxaPortTxEnable(int port); * int port : port number (0 - 127) * * |
1da177e4c Linux-2.6.12-rc2 |
1644 1645 1646 1647 1648 1649 1650 1651 |
* Function 31: Get the received BREAK signal count and reset it. * Syntax: * int MoxaPortResetBrkCnt(int port); * int port : port number (0 - 127) * * return: 0 - .. : BREAK signal count * * |
1da177e4c Linux-2.6.12-rc2 |
1652 |
*/ |
1da177e4c Linux-2.6.12-rc2 |
1653 |
|
b4173f457 Char: moxa, remov... |
1654 |
static void MoxaPortEnable(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1655 1656 |
{ void __iomem *ofsAddr; |
eaa95a8da Char: moxa, littl... |
1657 |
u16 lowwater = 512; |
1da177e4c Linux-2.6.12-rc2 |
1658 |
|
b4173f457 Char: moxa, remov... |
1659 |
ofsAddr = port->tableAddr; |
1da177e4c Linux-2.6.12-rc2 |
1660 |
writew(lowwater, ofsAddr + Low_water); |
08d01c792 Char: moxa, intro... |
1661 |
if (MOXA_IS_320(port->board)) |
1da177e4c Linux-2.6.12-rc2 |
1662 |
moxafunc(ofsAddr, FC_SetBreakIrq, 0); |
eaa95a8da Char: moxa, littl... |
1663 1664 1665 |
else writew(readw(ofsAddr + HostStat) | WakeupBreak, ofsAddr + HostStat); |
1da177e4c Linux-2.6.12-rc2 |
1666 1667 1668 1669 1670 1671 1672 |
moxafunc(ofsAddr, FC_SetLineIrq, Magic_code); moxafunc(ofsAddr, FC_FlushQueue, 2); moxafunc(ofsAddr, FC_EnableCH, Magic_code); MoxaPortLineStatus(port); } |
b4173f457 Char: moxa, remov... |
1673 |
static void MoxaPortDisable(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1674 |
{ |
b4173f457 Char: moxa, remov... |
1675 |
void __iomem *ofsAddr = port->tableAddr; |
1da177e4c Linux-2.6.12-rc2 |
1676 1677 1678 1679 1680 1681 |
moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */ moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code); writew(0, ofsAddr + HostStat); moxafunc(ofsAddr, FC_DisableCH, Magic_code); } |
08d01c792 Char: moxa, intro... |
1682 |
static speed_t MoxaPortSetBaud(struct moxa_port *port, speed_t baud) |
1da177e4c Linux-2.6.12-rc2 |
1683 |
{ |
08d01c792 Char: moxa, intro... |
1684 1685 1686 |
void __iomem *ofsAddr = port->tableAddr; unsigned int clock, val; speed_t max; |
1da177e4c Linux-2.6.12-rc2 |
1687 |
|
08d01c792 Char: moxa, intro... |
1688 1689 |
max = MOXA_IS_320(port->board) ? 460800 : 921600; if (baud < 50) |
eaa95a8da Char: moxa, littl... |
1690 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1691 1692 |
if (baud > max) baud = max; |
08d01c792 Char: moxa, intro... |
1693 |
clock = 921600; |
1da177e4c Linux-2.6.12-rc2 |
1694 1695 1696 |
val = clock / baud; moxafunc(ofsAddr, FC_SetBaud, val); baud = clock / val; |
eaa95a8da Char: moxa, littl... |
1697 |
return baud; |
1da177e4c Linux-2.6.12-rc2 |
1698 |
} |
b4173f457 Char: moxa, remov... |
1699 1700 |
static int MoxaPortSetTermio(struct moxa_port *port, struct ktermios *termio, speed_t baud) |
1da177e4c Linux-2.6.12-rc2 |
1701 1702 |
{ void __iomem *ofsAddr; |
1da177e4c Linux-2.6.12-rc2 |
1703 |
tcflag_t mode = 0; |
b4173f457 Char: moxa, remov... |
1704 |
ofsAddr = port->tableAddr; |
1da177e4c Linux-2.6.12-rc2 |
1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 |
mode = termio->c_cflag & CSIZE; if (mode == CS5) mode = MX_CS5; else if (mode == CS6) mode = MX_CS6; else if (mode == CS7) mode = MX_CS7; else if (mode == CS8) mode = MX_CS8; if (termio->c_cflag & CSTOPB) { if (mode == MX_CS5) mode |= MX_STOP15; else mode |= MX_STOP2; } else mode |= MX_STOP1; if (termio->c_cflag & PARENB) { |
d8dcbdd08 tty: moxa: Add su... |
1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 |
if (termio->c_cflag & PARODD) { if (termio->c_cflag & CMSPAR) mode |= MX_PARMARK; else mode |= MX_PARODD; } else { if (termio->c_cflag & CMSPAR) mode |= MX_PARSPACE; else mode |= MX_PAREVEN; } |
1da177e4c Linux-2.6.12-rc2 |
1736 1737 |
} else mode |= MX_PARNONE; |
eaa95a8da Char: moxa, littl... |
1738 |
moxafunc(ofsAddr, FC_SetDataMode, (u16)mode); |
1da177e4c Linux-2.6.12-rc2 |
1739 |
|
08d01c792 Char: moxa, intro... |
1740 1741 |
if (MOXA_IS_320(port->board) && baud >= 921600) return -1; |
db1acaa63 moxa: first pass ... |
1742 |
baud = MoxaPortSetBaud(port, baud); |
1da177e4c Linux-2.6.12-rc2 |
1743 1744 |
if (termio->c_iflag & (IXON | IXOFF | IXANY)) { |
f5c5a36d2 tty: moxa: rework... |
1745 |
spin_lock_irq(&moxafunc_lock); |
1da177e4c Linux-2.6.12-rc2 |
1746 1747 1748 |
writeb(termio->c_cc[VSTART], ofsAddr + FuncArg); writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1); writeb(FC_SetXonXoff, ofsAddr + FuncCode); |
6f56b658b Char: moxa, funct... |
1749 |
moxa_wait_finish(ofsAddr); |
a808ac0c4 tty: moxa: Lockin... |
1750 |
spin_unlock_irq(&moxafunc_lock); |
1da177e4c Linux-2.6.12-rc2 |
1751 1752 |
} |
eaa95a8da Char: moxa, littl... |
1753 |
return baud; |
1da177e4c Linux-2.6.12-rc2 |
1754 |
} |
b4173f457 Char: moxa, remov... |
1755 1756 |
static int MoxaPortGetLineOut(struct moxa_port *port, int *dtrState, int *rtsState) |
1da177e4c Linux-2.6.12-rc2 |
1757 |
{ |
b4173f457 Char: moxa, remov... |
1758 1759 1760 1761 |
if (dtrState) *dtrState = !!(port->lineCtrl & DTR_ON); if (rtsState) *rtsState = !!(port->lineCtrl & RTS_ON); |
eaa95a8da Char: moxa, littl... |
1762 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1763 |
} |
b4173f457 Char: moxa, remov... |
1764 |
static void MoxaPortLineCtrl(struct moxa_port *port, int dtr, int rts) |
1da177e4c Linux-2.6.12-rc2 |
1765 |
{ |
eaa95a8da Char: moxa, littl... |
1766 |
u8 mode = 0; |
1da177e4c Linux-2.6.12-rc2 |
1767 |
|
1da177e4c Linux-2.6.12-rc2 |
1768 1769 1770 1771 |
if (dtr) mode |= DTR_ON; if (rts) mode |= RTS_ON; |
b4173f457 Char: moxa, remov... |
1772 1773 |
port->lineCtrl = mode; moxafunc(port->tableAddr, FC_LineControl, mode); |
1da177e4c Linux-2.6.12-rc2 |
1774 |
} |
b4173f457 Char: moxa, remov... |
1775 1776 |
static void MoxaPortFlowCtrl(struct moxa_port *port, int rts, int cts, int txflow, int rxflow, int txany) |
1da177e4c Linux-2.6.12-rc2 |
1777 |
{ |
b4173f457 Char: moxa, remov... |
1778 |
int mode = 0; |
1da177e4c Linux-2.6.12-rc2 |
1779 |
|
1da177e4c Linux-2.6.12-rc2 |
1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 |
if (rts) mode |= RTS_FlowCtl; if (cts) mode |= CTS_FlowCtl; if (txflow) mode |= Tx_FlowCtl; if (rxflow) mode |= Rx_FlowCtl; if (txany) mode |= IXM_IXANY; |
b4173f457 Char: moxa, remov... |
1790 |
moxafunc(port->tableAddr, FC_SetFlowCtl, mode); |
1da177e4c Linux-2.6.12-rc2 |
1791 |
} |
b4173f457 Char: moxa, remov... |
1792 |
static int MoxaPortLineStatus(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1793 1794 1795 |
{ void __iomem *ofsAddr; int val; |
b4173f457 Char: moxa, remov... |
1796 |
ofsAddr = port->tableAddr; |
f5c5a36d2 tty: moxa: rework... |
1797 1798 1799 |
if (MOXA_IS_320(port->board)) val = moxafuncret(ofsAddr, FC_LineStatus, 0); else |
1da177e4c Linux-2.6.12-rc2 |
1800 |
val = readw(ofsAddr + FlagStat) >> 4; |
1da177e4c Linux-2.6.12-rc2 |
1801 |
val &= 0x0B; |
7bcf97d1d Char: moxa, merge... |
1802 |
if (val & 8) |
1da177e4c Linux-2.6.12-rc2 |
1803 |
val |= 4; |
7bcf97d1d Char: moxa, merge... |
1804 |
moxa_new_dcdstate(port, val & 8); |
1da177e4c Linux-2.6.12-rc2 |
1805 |
val &= 7; |
7bcf97d1d Char: moxa, merge... |
1806 |
return val; |
1da177e4c Linux-2.6.12-rc2 |
1807 |
} |
d450b5a01 tty: kref usage f... |
1808 |
static int MoxaPortWriteData(struct tty_struct *tty, |
2108eba5c Char: moxa, clean... |
1809 |
const unsigned char *buffer, int len) |
1da177e4c Linux-2.6.12-rc2 |
1810 |
{ |
d450b5a01 tty: kref usage f... |
1811 |
struct moxa_port *port = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1812 |
void __iomem *baseAddr, *ofsAddr, *ofs; |
2108eba5c Char: moxa, clean... |
1813 1814 1815 |
unsigned int c, total; u16 head, tail, tx_mask, spage, epage; u16 pageno, pageofs, bufhead; |
1da177e4c Linux-2.6.12-rc2 |
1816 |
|
b4173f457 Char: moxa, remov... |
1817 1818 |
ofsAddr = port->tableAddr; baseAddr = port->board->basemem; |
1da177e4c Linux-2.6.12-rc2 |
1819 1820 1821 1822 1823 |
tx_mask = readw(ofsAddr + TX_mask); spage = readw(ofsAddr + Page_txb); epage = readw(ofsAddr + EndPage_txb); tail = readw(ofsAddr + TXwptr); head = readw(ofsAddr + TXrptr); |
2108eba5c Char: moxa, clean... |
1824 |
c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask); |
1da177e4c Linux-2.6.12-rc2 |
1825 1826 |
if (c > len) c = len; |
9de6a51fe moxa: use tty_port |
1827 |
moxaLog.txcnt[port->port.tty->index] += c; |
1da177e4c Linux-2.6.12-rc2 |
1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 |
total = c; if (spage == epage) { bufhead = readw(ofsAddr + Ofs_txb); writew(spage, baseAddr + Control_reg); while (c > 0) { if (head > tail) len = head - tail - 1; else len = tx_mask + 1 - tail; len = (c > len) ? len : c; ofs = baseAddr + DynPage_addr + bufhead + tail; |
2108eba5c Char: moxa, clean... |
1839 1840 |
memcpy_toio(ofs, buffer, len); buffer += len; |
1da177e4c Linux-2.6.12-rc2 |
1841 1842 1843 |
tail = (tail + len) & tx_mask; c -= len; } |
1da177e4c Linux-2.6.12-rc2 |
1844 |
} else { |
1da177e4c Linux-2.6.12-rc2 |
1845 1846 |
pageno = spage + (tail >> 13); pageofs = tail & Page_mask; |
2108eba5c Char: moxa, clean... |
1847 1848 1849 1850 |
while (c > 0) { len = Page_size - pageofs; if (len > c) len = c; |
1da177e4c Linux-2.6.12-rc2 |
1851 1852 |
writeb(pageno, baseAddr + Control_reg); ofs = baseAddr + DynPage_addr + pageofs; |
2108eba5c Char: moxa, clean... |
1853 1854 |
memcpy_toio(ofs, buffer, len); buffer += len; |
1da177e4c Linux-2.6.12-rc2 |
1855 1856 1857 |
if (++pageno == epage) pageno = spage; pageofs = 0; |
2108eba5c Char: moxa, clean... |
1858 1859 1860 |
c -= len; } tail = (tail + total) & tx_mask; |
1da177e4c Linux-2.6.12-rc2 |
1861 |
} |
2108eba5c Char: moxa, clean... |
1862 |
writew(tail, ofsAddr + TXwptr); |
1da177e4c Linux-2.6.12-rc2 |
1863 |
writeb(1, ofsAddr + CD180TXirq); /* start to send */ |
2108eba5c Char: moxa, clean... |
1864 |
return total; |
1da177e4c Linux-2.6.12-rc2 |
1865 |
} |
7bcf97d1d Char: moxa, merge... |
1866 |
static int MoxaPortReadData(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1867 |
{ |
9de6a51fe moxa: use tty_port |
1868 |
struct tty_struct *tty = port->port.tty; |
2108eba5c Char: moxa, clean... |
1869 |
unsigned char *dst; |
1da177e4c Linux-2.6.12-rc2 |
1870 |
void __iomem *baseAddr, *ofsAddr, *ofs; |
2108eba5c Char: moxa, clean... |
1871 1872 1873 |
unsigned int count, len, total; u16 tail, rx_mask, spage, epage; u16 pageno, pageofs, bufhead, head; |
1da177e4c Linux-2.6.12-rc2 |
1874 |
|
b4173f457 Char: moxa, remov... |
1875 1876 |
ofsAddr = port->tableAddr; baseAddr = port->board->basemem; |
1da177e4c Linux-2.6.12-rc2 |
1877 1878 1879 1880 1881 |
head = readw(ofsAddr + RXrptr); tail = readw(ofsAddr + RXwptr); rx_mask = readw(ofsAddr + RX_mask); spage = readw(ofsAddr + Page_rxb); epage = readw(ofsAddr + EndPage_rxb); |
2108eba5c Char: moxa, clean... |
1882 |
count = (tail >= head) ? (tail - head) : (tail - head + rx_mask + 1); |
1da177e4c Linux-2.6.12-rc2 |
1883 |
if (count == 0) |
33f0f88f1 [PATCH] TTY layer... |
1884 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1885 |
|
33f0f88f1 [PATCH] TTY layer... |
1886 |
total = count; |
7bcf97d1d Char: moxa, merge... |
1887 |
moxaLog.rxcnt[tty->index] += total; |
1da177e4c Linux-2.6.12-rc2 |
1888 1889 1890 1891 |
if (spage == epage) { bufhead = readw(ofsAddr + Ofs_rxb); writew(spage, baseAddr + Control_reg); while (count > 0) { |
1da177e4c Linux-2.6.12-rc2 |
1892 |
ofs = baseAddr + DynPage_addr + bufhead + head; |
2108eba5c Char: moxa, clean... |
1893 1894 |
len = (tail >= head) ? (tail - head) : (rx_mask + 1 - head); |
2f6933571 TTY: convert more... |
1895 |
len = tty_prepare_flip_string(&port->port, &dst, |
2108eba5c Char: moxa, clean... |
1896 1897 |
min(len, count)); memcpy_fromio(dst, ofs, len); |
1da177e4c Linux-2.6.12-rc2 |
1898 1899 1900 |
head = (head + len) & rx_mask; count -= len; } |
1da177e4c Linux-2.6.12-rc2 |
1901 |
} else { |
1da177e4c Linux-2.6.12-rc2 |
1902 1903 |
pageno = spage + (head >> 13); pageofs = head & Page_mask; |
2108eba5c Char: moxa, clean... |
1904 |
while (count > 0) { |
1da177e4c Linux-2.6.12-rc2 |
1905 1906 |
writew(pageno, baseAddr + Control_reg); ofs = baseAddr + DynPage_addr + pageofs; |
2f6933571 TTY: convert more... |
1907 |
len = tty_prepare_flip_string(&port->port, &dst, |
2108eba5c Char: moxa, clean... |
1908 1909 1910 1911 1912 1913 |
min(Page_size - pageofs, count)); memcpy_fromio(dst, ofs, len); count -= len; pageofs = (pageofs + len) & Page_mask; if (pageofs == 0 && ++pageno == epage) |
1da177e4c Linux-2.6.12-rc2 |
1914 |
pageno = spage; |
2108eba5c Char: moxa, clean... |
1915 1916 |
} head = (head + total) & rx_mask; |
1da177e4c Linux-2.6.12-rc2 |
1917 |
} |
2108eba5c Char: moxa, clean... |
1918 1919 |
writew(head, ofsAddr + RXrptr); if (readb(ofsAddr + FlagStat) & Xoff_state) { |
1da177e4c Linux-2.6.12-rc2 |
1920 |
moxaLowWaterChk = 1; |
b4173f457 Char: moxa, remov... |
1921 |
port->lowChkFlag = 1; |
1da177e4c Linux-2.6.12-rc2 |
1922 |
} |
2108eba5c Char: moxa, clean... |
1923 |
return total; |
1da177e4c Linux-2.6.12-rc2 |
1924 |
} |
b4173f457 Char: moxa, remov... |
1925 |
static int MoxaPortTxQueue(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1926 |
{ |
b4173f457 Char: moxa, remov... |
1927 |
void __iomem *ofsAddr = port->tableAddr; |
2108eba5c Char: moxa, clean... |
1928 |
u16 rptr, wptr, mask; |
1da177e4c Linux-2.6.12-rc2 |
1929 |
|
1da177e4c Linux-2.6.12-rc2 |
1930 1931 1932 |
rptr = readw(ofsAddr + TXrptr); wptr = readw(ofsAddr + TXwptr); mask = readw(ofsAddr + TX_mask); |
2108eba5c Char: moxa, clean... |
1933 |
return (wptr - rptr) & mask; |
1da177e4c Linux-2.6.12-rc2 |
1934 |
} |
b4173f457 Char: moxa, remov... |
1935 |
static int MoxaPortTxFree(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1936 |
{ |
b4173f457 Char: moxa, remov... |
1937 |
void __iomem *ofsAddr = port->tableAddr; |
2108eba5c Char: moxa, clean... |
1938 |
u16 rptr, wptr, mask; |
1da177e4c Linux-2.6.12-rc2 |
1939 |
|
1da177e4c Linux-2.6.12-rc2 |
1940 1941 1942 |
rptr = readw(ofsAddr + TXrptr); wptr = readw(ofsAddr + TXwptr); mask = readw(ofsAddr + TX_mask); |
2108eba5c Char: moxa, clean... |
1943 |
return mask - ((wptr - rptr) & mask); |
1da177e4c Linux-2.6.12-rc2 |
1944 |
} |
b4173f457 Char: moxa, remov... |
1945 |
static int MoxaPortRxQueue(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1946 |
{ |
b4173f457 Char: moxa, remov... |
1947 |
void __iomem *ofsAddr = port->tableAddr; |
2108eba5c Char: moxa, clean... |
1948 |
u16 rptr, wptr, mask; |
1da177e4c Linux-2.6.12-rc2 |
1949 |
|
1da177e4c Linux-2.6.12-rc2 |
1950 1951 1952 |
rptr = readw(ofsAddr + RXrptr); wptr = readw(ofsAddr + RXwptr); mask = readw(ofsAddr + RX_mask); |
2108eba5c Char: moxa, clean... |
1953 |
return (wptr - rptr) & mask; |
1da177e4c Linux-2.6.12-rc2 |
1954 |
} |
b4173f457 Char: moxa, remov... |
1955 |
static void MoxaPortTxDisable(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1956 |
{ |
b4173f457 Char: moxa, remov... |
1957 |
moxafunc(port->tableAddr, FC_SetXoffState, Magic_code); |
1da177e4c Linux-2.6.12-rc2 |
1958 |
} |
b4173f457 Char: moxa, remov... |
1959 |
static void MoxaPortTxEnable(struct moxa_port *port) |
1da177e4c Linux-2.6.12-rc2 |
1960 |
{ |
b4173f457 Char: moxa, remov... |
1961 |
moxafunc(port->tableAddr, FC_SetXonState, Magic_code); |
1da177e4c Linux-2.6.12-rc2 |
1962 |
} |
1c729ab15 moxa: switch to -... |
1963 1964 |
static int moxa_get_serial_info(struct tty_struct *tty, struct serial_struct *ss) |
1da177e4c Linux-2.6.12-rc2 |
1965 |
{ |
1c729ab15 moxa: switch to -... |
1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 |
struct moxa_port *info = tty->driver_data; if (tty->index == MAX_PORTS) return -EINVAL; if (!info) return -ENODEV; mutex_lock(&info->port.mutex); ss->type = info->type, ss->line = info->port.tty->index, ss->flags = info->port.flags, ss->baud_base = 921600, ss->close_delay = info->port.close_delay; mutex_unlock(&info->port.mutex); return 0; |
1da177e4c Linux-2.6.12-rc2 |
1980 |
} |
1c729ab15 moxa: switch to -... |
1981 1982 |
static int moxa_set_serial_info(struct tty_struct *tty, struct serial_struct *ss) |
1da177e4c Linux-2.6.12-rc2 |
1983 |
{ |
1c729ab15 moxa: switch to -... |
1984 |
struct moxa_port *info = tty->driver_data; |
1da177e4c Linux-2.6.12-rc2 |
1985 |
|
1c729ab15 moxa: switch to -... |
1986 1987 1988 1989 |
if (tty->index == MAX_PORTS) return -EINVAL; if (!info) return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
1990 |
|
1c729ab15 moxa: switch to -... |
1991 1992 1993 |
if (ss->irq != 0 || ss->port != 0 || ss->custom_divisor != 0 || ss->baud_base != 921600) |
eaa95a8da Char: moxa, littl... |
1994 |
return -EPERM; |
1da177e4c Linux-2.6.12-rc2 |
1995 |
|
1c729ab15 moxa: switch to -... |
1996 |
mutex_lock(&info->port.mutex); |
1da177e4c Linux-2.6.12-rc2 |
1997 |
if (!capable(CAP_SYS_ADMIN)) { |
1c729ab15 moxa: switch to -... |
1998 1999 2000 |
if (((ss->flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK))) { mutex_unlock(&info->port.mutex); |
eaa95a8da Char: moxa, littl... |
2001 |
return -EPERM; |
1c729ab15 moxa: switch to -... |
2002 2003 2004 |
} } info->port.close_delay = ss->close_delay * HZ / 100; |
1da177e4c Linux-2.6.12-rc2 |
2005 |
|
1c729ab15 moxa: switch to -... |
2006 |
MoxaSetFifo(info, ss->type == PORT_16550A); |
1da177e4c Linux-2.6.12-rc2 |
2007 |
|
1c729ab15 moxa: switch to -... |
2008 2009 |
info->type = ss->type; mutex_unlock(&info->port.mutex); |
eaa95a8da Char: moxa, littl... |
2010 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
2011 2012 2013 2014 2015 2016 2017 |
} /***************************************************************************** * Static local functions: * *****************************************************************************/ |
1da177e4c Linux-2.6.12-rc2 |
2018 |
|
b4173f457 Char: moxa, remov... |
2019 |
static void MoxaSetFifo(struct moxa_port *port, int enable) |
1da177e4c Linux-2.6.12-rc2 |
2020 |
{ |
b4173f457 Char: moxa, remov... |
2021 |
void __iomem *ofsAddr = port->tableAddr; |
1da177e4c Linux-2.6.12-rc2 |
2022 2023 2024 2025 2026 2027 2028 2029 2030 |
if (!enable) { moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0); moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1); } else { moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3); moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16); } } |