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Diffstat (limited to 'drivers/char/rio/rio_linux.c')
-rw-r--r--drivers/char/rio/rio_linux.c1204
1 files changed, 0 insertions, 1204 deletions
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
deleted file mode 100644
index 5e33293d24e3..000000000000
--- a/drivers/char/rio/rio_linux.c
+++ /dev/null
@@ -1,1204 +0,0 @@
-
-/* rio_linux.c -- Linux driver for the Specialix RIO series cards.
- *
- *
- * (C) 1999 R.E.Wolff@BitWizard.nl
- *
- * Specialix pays for the development and support of this driver.
- * Please DO contact support@specialix.co.uk if you require
- * support. But please read the documentation (rio.txt) first.
- *
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- * */
-
-#include <linux/module.h>
-#include <linux/kdev_t.h>
-#include <asm/io.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/miscdevice.h>
-#include <linux/init.h>
-
-#include <linux/generic_serial.h>
-#include <asm/uaccess.h>
-
-#include "linux_compat.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-#include "param.h"
-#include "protsts.h"
-#include "rioboard.h"
-
-
-#include "rio_linux.h"
-
-/* I don't think that this driver can handle more than 512 ports on
-one machine. Specialix specifies max 4 boards in one machine. I don't
-know why. If you want to try anyway you'll have to increase the number
-of boards in rio.h. You'll have to allocate more majors if you need
-more than 512 ports.... */
-
-#ifndef RIO_NORMAL_MAJOR0
-/* This allows overriding on the compiler commandline, or in a "major.h"
- include or something like that */
-#define RIO_NORMAL_MAJOR0 154
-#define RIO_NORMAL_MAJOR1 156
-#endif
-
-#ifndef PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8
-#define PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8 0x2000
-#endif
-
-#ifndef RIO_WINDOW_LEN
-#define RIO_WINDOW_LEN 0x10000
-#endif
-
-
-/* Configurable options:
- (Don't be too sure that it'll work if you toggle them) */
-
-/* Am I paranoid or not ? ;-) */
-#undef RIO_PARANOIA_CHECK
-
-
-/* 20 -> 2000 per second. The card should rate-limit interrupts at 1000
- Hz, but it is user configurable. I don't recommend going above 1000
- Hz. The interrupt ratelimit might trigger if the interrupt is
- shared with a very active other device.
- undef this if you want to disable the check....
-*/
-#define IRQ_RATE_LIMIT 200
-
-
-/* These constants are derived from SCO Source */
-static DEFINE_MUTEX(rio_fw_mutex);
-static struct Conf
- RIOConf = {
- /* locator */ "RIO Config here",
- /* startuptime */ HZ * 2,
- /* how long to wait for card to run */
- /* slowcook */ 0,
- /* TRUE -> always use line disc. */
- /* intrpolltime */ 1,
- /* The frequency of OUR polls */
- /* breakinterval */ 25,
- /* x10 mS XXX: units seem to be 1ms not 10! -- REW */
- /* timer */ 10,
- /* mS */
- /* RtaLoadBase */ 0x7000,
- /* HostLoadBase */ 0x7C00,
- /* XpHz */ 5,
- /* number of Xprint hits per second */
- /* XpCps */ 120,
- /* Xprint characters per second */
- /* XpOn */ "\033d#",
- /* start Xprint for a wyse 60 */
- /* XpOff */ "\024",
- /* end Xprint for a wyse 60 */
- /* MaxXpCps */ 2000,
- /* highest Xprint speed */
- /* MinXpCps */ 10,
- /* slowest Xprint speed */
- /* SpinCmds */ 1,
- /* non-zero for mega fast boots */
- /* First Addr */ 0x0A0000,
- /* First address to look at */
- /* Last Addr */ 0xFF0000,
- /* Last address looked at */
- /* BufferSize */ 1024,
- /* Bytes per port of buffering */
- /* LowWater */ 256,
- /* how much data left before wakeup */
- /* LineLength */ 80,
- /* how wide is the console? */
- /* CmdTimeout */ HZ,
- /* how long a close command may take */
-};
-
-
-
-
-/* Function prototypes */
-
-static void rio_disable_tx_interrupts(void *ptr);
-static void rio_enable_tx_interrupts(void *ptr);
-static void rio_disable_rx_interrupts(void *ptr);
-static void rio_enable_rx_interrupts(void *ptr);
-static int rio_carrier_raised(struct tty_port *port);
-static void rio_shutdown_port(void *ptr);
-static int rio_set_real_termios(void *ptr);
-static void rio_hungup(void *ptr);
-static void rio_close(void *ptr);
-static int rio_chars_in_buffer(void *ptr);
-static long rio_fw_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-static int rio_init_drivers(void);
-
-static void my_hd(void *addr, int len);
-
-static struct tty_driver *rio_driver, *rio_driver2;
-
-/* The name "p" is a bit non-descript. But that's what the rio-lynxos
-sources use all over the place. */
-struct rio_info *p;
-
-int rio_debug;
-
-
-/* You can have the driver poll your card.
- - Set rio_poll to 1 to poll every timer tick (10ms on Intel).
- This is used when the card cannot use an interrupt for some reason.
-*/
-static int rio_poll = 1;
-
-
-/* These are the only open spaces in my computer. Yours may have more
- or less.... */
-static int rio_probe_addrs[] = { 0xc0000, 0xd0000, 0xe0000 };
-
-#define NR_RIO_ADDRS ARRAY_SIZE(rio_probe_addrs)
-
-
-/* Set the mask to all-ones. This alas, only supports 32 interrupts.
- Some architectures may need more. -- Changed to LONG to
- support up to 64 bits on 64bit architectures. -- REW 20/06/99 */
-static long rio_irqmask = -1;
-
-MODULE_AUTHOR("Rogier Wolff <R.E.Wolff@bitwizard.nl>, Patrick van de Lageweg <patrick@bitwizard.nl>");
-MODULE_DESCRIPTION("RIO driver");
-MODULE_LICENSE("GPL");
-module_param(rio_poll, int, 0);
-module_param(rio_debug, int, 0644);
-module_param(rio_irqmask, long, 0);
-
-static struct real_driver rio_real_driver = {
- rio_disable_tx_interrupts,
- rio_enable_tx_interrupts,
- rio_disable_rx_interrupts,
- rio_enable_rx_interrupts,
- rio_shutdown_port,
- rio_set_real_termios,
- rio_chars_in_buffer,
- rio_close,
- rio_hungup,
- NULL
-};
-
-/*
- * Firmware loader driver specific routines
- *
- */
-
-static const struct file_operations rio_fw_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = rio_fw_ioctl,
- .llseek = noop_llseek,
-};
-
-static struct miscdevice rio_fw_device = {
- RIOCTL_MISC_MINOR, "rioctl", &rio_fw_fops
-};
-
-
-
-
-
-#ifdef RIO_PARANOIA_CHECK
-
-/* This doesn't work. Who's paranoid around here? Not me! */
-
-static inline int rio_paranoia_check(struct rio_port const *port, char *name, const char *routine)
-{
-
- static const char *badmagic = KERN_ERR "rio: Warning: bad rio port magic number for device %s in %s\n";
- static const char *badinfo = KERN_ERR "rio: Warning: null rio port for device %s in %s\n";
-
- if (!port) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (port->magic != RIO_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-
- return 0;
-}
-#else
-#define rio_paranoia_check(a,b,c) 0
-#endif
-
-
-#ifdef DEBUG
-static void my_hd(void *ad, int len)
-{
- int i, j, ch;
- unsigned char *addr = ad;
-
- for (i = 0; i < len; i += 16) {
- rio_dprintk(RIO_DEBUG_PARAM, "%08lx ", (unsigned long) addr + i);
- for (j = 0; j < 16; j++) {
- rio_dprintk(RIO_DEBUG_PARAM, "%02x %s", addr[j + i], (j == 7) ? " " : "");
- }
- for (j = 0; j < 16; j++) {
- ch = addr[j + i];
- rio_dprintk(RIO_DEBUG_PARAM, "%c", (ch < 0x20) ? '.' : ((ch > 0x7f) ? '.' : ch));
- }
- rio_dprintk(RIO_DEBUG_PARAM, "\n");
- }
-}
-#else
-#define my_hd(ad,len) do{/* nothing*/ } while (0)
-#endif
-
-
-/* Delay a number of jiffies, allowing a signal to interrupt */
-int RIODelay(struct Port *PortP, int njiffies)
-{
- func_enter();
-
- rio_dprintk(RIO_DEBUG_DELAY, "delaying %d jiffies\n", njiffies);
- msleep_interruptible(jiffies_to_msecs(njiffies));
- func_exit();
-
- if (signal_pending(current))
- return RIO_FAIL;
- else
- return !RIO_FAIL;
-}
-
-
-/* Delay a number of jiffies, disallowing a signal to interrupt */
-int RIODelay_ni(struct Port *PortP, int njiffies)
-{
- func_enter();
-
- rio_dprintk(RIO_DEBUG_DELAY, "delaying %d jiffies (ni)\n", njiffies);
- msleep(jiffies_to_msecs(njiffies));
- func_exit();
- return !RIO_FAIL;
-}
-
-void rio_copy_to_card(void *from, void __iomem *to, int len)
-{
- rio_copy_toio(to, from, len);
-}
-
-int rio_minor(struct tty_struct *tty)
-{
- return tty->index + ((tty->driver == rio_driver) ? 0 : 256);
-}
-
-static int rio_set_real_termios(void *ptr)
-{
- return RIOParam((struct Port *) ptr, RIOC_CONFIG, 1, 1);
-}
-
-
-static void rio_reset_interrupt(struct Host *HostP)
-{
- func_enter();
-
- switch (HostP->Type) {
- case RIO_AT:
- case RIO_MCA:
- case RIO_PCI:
- writeb(0xFF, &HostP->ResetInt);
- }
-
- func_exit();
-}
-
-
-static irqreturn_t rio_interrupt(int irq, void *ptr)
-{
- struct Host *HostP;
- func_enter();
-
- HostP = ptr; /* &p->RIOHosts[(long)ptr]; */
- rio_dprintk(RIO_DEBUG_IFLOW, "rio: enter rio_interrupt (%d/%d)\n", irq, HostP->Ivec);
-
- /* AAargh! The order in which to do these things is essential and
- not trivial.
-
- - hardware twiddling goes before "recursive". Otherwise when we
- poll the card, and a recursive interrupt happens, we won't
- ack the card, so it might keep on interrupting us. (especially
- level sensitive interrupt systems like PCI).
-
- - Rate limit goes before hardware twiddling. Otherwise we won't
- catch a card that has gone bonkers.
-
- - The "initialized" test goes after the hardware twiddling. Otherwise
- the card will stick us in the interrupt routine again.
-
- - The initialized test goes before recursive.
- */
-
- rio_dprintk(RIO_DEBUG_IFLOW, "rio: We've have noticed the interrupt\n");
- if (HostP->Ivec == irq) {
- /* Tell the card we've noticed the interrupt. */
- rio_reset_interrupt(HostP);
- }
-
- if ((HostP->Flags & RUN_STATE) != RC_RUNNING)
- return IRQ_HANDLED;
-
- if (test_and_set_bit(RIO_BOARD_INTR_LOCK, &HostP->locks)) {
- printk(KERN_ERR "Recursive interrupt! (host %p/irq%d)\n", ptr, HostP->Ivec);
- return IRQ_HANDLED;
- }
-
- RIOServiceHost(p, HostP);
-
- rio_dprintk(RIO_DEBUG_IFLOW, "riointr() doing host %p type %d\n", ptr, HostP->Type);
-
- clear_bit(RIO_BOARD_INTR_LOCK, &HostP->locks);
- rio_dprintk(RIO_DEBUG_IFLOW, "rio: exit rio_interrupt (%d/%d)\n", irq, HostP->Ivec);
- func_exit();
- return IRQ_HANDLED;
-}
-
-
-static void rio_pollfunc(unsigned long data)
-{
- func_enter();
-
- rio_interrupt(0, &p->RIOHosts[data]);
- mod_timer(&p->RIOHosts[data].timer, jiffies + rio_poll);
-
- func_exit();
-}
-
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the generic_serial driver *
- * ********************************************************************** */
-
-/* Ehhm. I don't know how to fiddle with interrupts on the Specialix
- cards. .... Hmm. Ok I figured it out. You don't. -- REW */
-
-static void rio_disable_tx_interrupts(void *ptr)
-{
- func_enter();
-
- /* port->gs.port.flags &= ~GS_TX_INTEN; */
-
- func_exit();
-}
-
-
-static void rio_enable_tx_interrupts(void *ptr)
-{
- struct Port *PortP = ptr;
- /* int hn; */
-
- func_enter();
-
- /* hn = PortP->HostP - p->RIOHosts;
-
- rio_dprintk (RIO_DEBUG_TTY, "Pushing host %d\n", hn);
- rio_interrupt (-1,(void *) hn, NULL); */
-
- RIOTxEnable((char *) PortP);
-
- /*
- * In general we cannot count on "tx empty" interrupts, although
- * the interrupt routine seems to be able to tell the difference.
- */
- PortP->gs.port.flags &= ~GS_TX_INTEN;
-
- func_exit();
-}
-
-
-static void rio_disable_rx_interrupts(void *ptr)
-{
- func_enter();
- func_exit();
-}
-
-static void rio_enable_rx_interrupts(void *ptr)
-{
- /* struct rio_port *port = ptr; */
- func_enter();
- func_exit();
-}
-
-
-/* Jeez. Isn't this simple? */
-static int rio_carrier_raised(struct tty_port *port)
-{
- struct Port *PortP = container_of(port, struct Port, gs.port);
- int rv;
-
- func_enter();
- rv = (PortP->ModemState & RIOC_MSVR1_CD) != 0;
-
- rio_dprintk(RIO_DEBUG_INIT, "Getting CD status: %d\n", rv);
-
- func_exit();
- return rv;
-}
-
-
-/* Jeez. Isn't this simple? Actually, we can sync with the actual port
- by just pushing stuff into the queue going to the port... */
-static int rio_chars_in_buffer(void *ptr)
-{
- func_enter();
-
- func_exit();
- return 0;
-}
-
-
-/* Nothing special here... */
-static void rio_shutdown_port(void *ptr)
-{
- struct Port *PortP;
-
- func_enter();
-
- PortP = (struct Port *) ptr;
- PortP->gs.port.tty = NULL;
- func_exit();
-}
-
-
-/* I haven't the foggiest why the decrement use count has to happen
- here. The whole linux serial drivers stuff needs to be redesigned.
- My guess is that this is a hack to minimize the impact of a bug
- elsewhere. Thinking about it some more. (try it sometime) Try
- running minicom on a serial port that is driven by a modularized
- driver. Have the modem hangup. Then remove the driver module. Then
- exit minicom. I expect an "oops". -- REW */
-static void rio_hungup(void *ptr)
-{
- struct Port *PortP;
-
- func_enter();
-
- PortP = (struct Port *) ptr;
- PortP->gs.port.tty = NULL;
-
- func_exit();
-}
-
-
-/* The standard serial_close would become shorter if you'd wrap it like
- this.
- rs_close (...){save_flags;cli;real_close();dec_use_count;restore_flags;}
- */
-static void rio_close(void *ptr)
-{
- struct Port *PortP;
-
- func_enter();
-
- PortP = (struct Port *) ptr;
-
- riotclose(ptr);
-
- if (PortP->gs.port.count) {
- printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.port.count);
- PortP->gs.port.count = 0;
- }
-
- PortP->gs.port.tty = NULL;
- func_exit();
-}
-
-
-
-static long rio_fw_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- int rc = 0;
- func_enter();
-
- /* The "dev" argument isn't used. */
- mutex_lock(&rio_fw_mutex);
- rc = riocontrol(p, 0, cmd, arg, capable(CAP_SYS_ADMIN));
- mutex_unlock(&rio_fw_mutex);
-
- func_exit();
- return rc;
-}
-
-extern int RIOShortCommand(struct rio_info *p, struct Port *PortP, int command, int len, int arg);
-
-static int rio_ioctl(struct tty_struct *tty, struct file *filp, unsigned int cmd, unsigned long arg)
-{
- void __user *argp = (void __user *)arg;
- int rc;
- struct Port *PortP;
- int ival;
-
- func_enter();
-
- PortP = (struct Port *) tty->driver_data;
-
- rc = 0;
- switch (cmd) {
- case TIOCSSOFTCAR:
- if ((rc = get_user(ival, (unsigned __user *) argp)) == 0) {
- tty->termios->c_cflag = (tty->termios->c_cflag & ~CLOCAL) | (ival ? CLOCAL : 0);
- }
- break;
- case TIOCGSERIAL:
- rc = -EFAULT;
- if (access_ok(VERIFY_WRITE, argp, sizeof(struct serial_struct)))
- rc = gs_getserial(&PortP->gs, argp);
- break;
- case TCSBRK:
- if (PortP->State & RIO_DELETED) {
- rio_dprintk(RIO_DEBUG_TTY, "BREAK on deleted RTA\n");
- rc = -EIO;
- } else {
- if (RIOShortCommand(p, PortP, RIOC_SBREAK, 2, 250) ==
- RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_INTR, "SBREAK RIOShortCommand failed\n");
- rc = -EIO;
- }
- }
- break;
- case TCSBRKP:
- if (PortP->State & RIO_DELETED) {
- rio_dprintk(RIO_DEBUG_TTY, "BREAK on deleted RTA\n");
- rc = -EIO;
- } else {
- int l;
- l = arg ? arg * 100 : 250;
- if (l > 255)
- l = 255;
- if (RIOShortCommand(p, PortP, RIOC_SBREAK, 2,
- arg ? arg * 100 : 250) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_INTR, "SBREAK RIOShortCommand failed\n");
- rc = -EIO;
- }
- }
- break;
- case TIOCSSERIAL:
- rc = -EFAULT;
- if (access_ok(VERIFY_READ, argp, sizeof(struct serial_struct)))
- rc = gs_setserial(&PortP->gs, argp);
- break;
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
- func_exit();
- return rc;
-}
-
-
-/* The throttle/unthrottle scheme for the Specialix card is different
- * from other drivers and deserves some explanation.
- * The Specialix hardware takes care of XON/XOFF
- * and CTS/RTS flow control itself. This means that all we have to
- * do when signalled by the upper tty layer to throttle/unthrottle is
- * to make a note of it here. When we come to read characters from the
- * rx buffers on the card (rio_receive_chars()) we look to see if the
- * upper layer can accept more (as noted here in rio_rx_throt[]).
- * If it can't we simply don't remove chars from the cards buffer.
- * When the tty layer can accept chars, we again note that here and when
- * rio_receive_chars() is called it will remove them from the cards buffer.
- * The card will notice that a ports buffer has drained below some low
- * water mark and will unflow control the line itself, using whatever
- * flow control scheme is in use for that port. -- Simon Allen
- */
-
-static void rio_throttle(struct tty_struct *tty)
-{
- struct Port *port = (struct Port *) tty->driver_data;
-
- func_enter();
- /* If the port is using any type of input flow
- * control then throttle the port.
- */
-
- if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) {
- port->State |= RIO_THROTTLE_RX;
- }
-
- func_exit();
-}
-
-
-static void rio_unthrottle(struct tty_struct *tty)
-{
- struct Port *port = (struct Port *) tty->driver_data;
-
- func_enter();
- /* Always unthrottle even if flow control is not enabled on
- * this port in case we disabled flow control while the port
- * was throttled
- */
-
- port->State &= ~RIO_THROTTLE_RX;
-
- func_exit();
- return;
-}
-
-
-
-
-
-/* ********************************************************************** *
- * Here are the initialization routines. *
- * ********************************************************************** */
-
-
-static struct vpd_prom *get_VPD_PROM(struct Host *hp)
-{
- static struct vpd_prom vpdp;
- char *p;
- int i;
-
- func_enter();
- rio_dprintk(RIO_DEBUG_PROBE, "Going to verify vpd prom at %p.\n", hp->Caddr + RIO_VPD_ROM);
-
- p = (char *) &vpdp;
- for (i = 0; i < sizeof(struct vpd_prom); i++)
- *p++ = readb(hp->Caddr + RIO_VPD_ROM + i * 2);
- /* read_rio_byte (hp, RIO_VPD_ROM + i*2); */
-
- /* Terminate the identifier string.
- *** requires one extra byte in struct vpd_prom *** */
- *p++ = 0;
-
- if (rio_debug & RIO_DEBUG_PROBE)
- my_hd((char *) &vpdp, 0x20);
-
- func_exit();
-
- return &vpdp;
-}
-
-static const struct tty_operations rio_ops = {
- .open = riotopen,
- .close = gs_close,
- .write = gs_write,
- .put_char = gs_put_char,
- .flush_chars = gs_flush_chars,
- .write_room = gs_write_room,
- .chars_in_buffer = gs_chars_in_buffer,
- .flush_buffer = gs_flush_buffer,
- .ioctl = rio_ioctl,
- .throttle = rio_throttle,
- .unthrottle = rio_unthrottle,
- .set_termios = gs_set_termios,
- .stop = gs_stop,
- .start = gs_start,
- .hangup = gs_hangup,
-};
-
-static int rio_init_drivers(void)
-{
- int error = -ENOMEM;
-
- rio_driver = alloc_tty_driver(256);
- if (!rio_driver)
- goto out;
- rio_driver2 = alloc_tty_driver(256);
- if (!rio_driver2)
- goto out1;
-
- func_enter();
-
- rio_driver->owner = THIS_MODULE;
- rio_driver->driver_name = "specialix_rio";
- rio_driver->name = "ttySR";
- rio_driver->major = RIO_NORMAL_MAJOR0;
- rio_driver->type = TTY_DRIVER_TYPE_SERIAL;
- rio_driver->subtype = SERIAL_TYPE_NORMAL;
- rio_driver->init_termios = tty_std_termios;
- rio_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- rio_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(rio_driver, &rio_ops);
-
- rio_driver2->owner = THIS_MODULE;
- rio_driver2->driver_name = "specialix_rio";
- rio_driver2->name = "ttySR";
- rio_driver2->major = RIO_NORMAL_MAJOR1;
- rio_driver2->type = TTY_DRIVER_TYPE_SERIAL;
- rio_driver2->subtype = SERIAL_TYPE_NORMAL;
- rio_driver2->init_termios = tty_std_termios;
- rio_driver2->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- rio_driver2->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(rio_driver2, &rio_ops);
-
- rio_dprintk(RIO_DEBUG_INIT, "set_termios = %p\n", gs_set_termios);
-
- if ((error = tty_register_driver(rio_driver)))
- goto out2;
- if ((error = tty_register_driver(rio_driver2)))
- goto out3;
- func_exit();
- return 0;
- out3:
- tty_unregister_driver(rio_driver);
- out2:
- put_tty_driver(rio_driver2);
- out1:
- put_tty_driver(rio_driver);
- out:
- printk(KERN_ERR "rio: Couldn't register a rio driver, error = %d\n", error);
- return 1;
-}
-
-static const struct tty_port_operations rio_port_ops = {
- .carrier_raised = rio_carrier_raised,
-};
-
-static int rio_init_datastructures(void)
-{
- int i;
- struct Port *port;
- func_enter();
-
- /* Many drivers statically allocate the maximum number of ports
- There is no reason not to allocate them dynamically. Is there? -- REW */
- /* However, the RIO driver allows users to configure their first
- RTA as the ports numbered 504-511. We therefore need to allocate
- the whole range. :-( -- REW */
-
-#define RI_SZ sizeof(struct rio_info)
-#define HOST_SZ sizeof(struct Host)
-#define PORT_SZ sizeof(struct Port *)
-#define TMIO_SZ sizeof(struct termios *)
- rio_dprintk(RIO_DEBUG_INIT, "getting : %Zd %Zd %Zd %Zd %Zd bytes\n", RI_SZ, RIO_HOSTS * HOST_SZ, RIO_PORTS * PORT_SZ, RIO_PORTS * TMIO_SZ, RIO_PORTS * TMIO_SZ);
-
- if (!(p = kzalloc(RI_SZ, GFP_KERNEL)))
- goto free0;
- if (!(p->RIOHosts = kzalloc(RIO_HOSTS * HOST_SZ, GFP_KERNEL)))
- goto free1;
- if (!(p->RIOPortp = kzalloc(RIO_PORTS * PORT_SZ, GFP_KERNEL)))
- goto free2;
- p->RIOConf = RIOConf;
- rio_dprintk(RIO_DEBUG_INIT, "Got : %p %p %p\n", p, p->RIOHosts, p->RIOPortp);
-
-#if 1
- for (i = 0; i < RIO_PORTS; i++) {
- port = p->RIOPortp[i] = kzalloc(sizeof(struct Port), GFP_KERNEL);
- if (!port) {
- goto free6;
- }
- rio_dprintk(RIO_DEBUG_INIT, "initing port %d (%d)\n", i, port->Mapped);
- tty_port_init(&port->gs.port);
- port->gs.port.ops = &rio_port_ops;
- port->PortNum = i;
- port->gs.magic = RIO_MAGIC;
- port->gs.close_delay = HZ / 2;
- port->gs.closing_wait = 30 * HZ;
- port->gs.rd = &rio_real_driver;
- spin_lock_init(&port->portSem);
- }
-#else
- /* We could postpone initializing them to when they are configured. */
-#endif
-
-
-
- if (rio_debug & RIO_DEBUG_INIT) {
- my_hd(&rio_real_driver, sizeof(rio_real_driver));
- }
-
-
- func_exit();
- return 0;
-
- free6:for (i--; i >= 0; i--)
- kfree(p->RIOPortp[i]);
-/*free5:
- free4:
- free3:*/ kfree(p->RIOPortp);
- free2:kfree(p->RIOHosts);
- free1:
- rio_dprintk(RIO_DEBUG_INIT, "Not enough memory! %p %p %p\n", p, p->RIOHosts, p->RIOPortp);
- kfree(p);
- free0:
- return -ENOMEM;
-}
-
-static void __exit rio_release_drivers(void)
-{
- func_enter();
- tty_unregister_driver(rio_driver2);
- tty_unregister_driver(rio_driver);
- put_tty_driver(rio_driver2);
- put_tty_driver(rio_driver);
- func_exit();
-}
-
-
-#ifdef CONFIG_PCI
- /* This was written for SX, but applies to RIO too...
- (including bugs....)
-
- There is another bit besides Bit 17. Turning that bit off
- (on boards shipped with the fix in the eeprom) results in a
- hang on the next access to the card.
- */
-
- /********************************************************
- * Setting bit 17 in the CNTRL register of the PLX 9050 *
- * chip forces a retry on writes while a read is pending.*
- * This is to prevent the card locking up on Intel Xeon *
- * multiprocessor systems with the NX chipset. -- NV *
- ********************************************************/
-
-/* Newer cards are produced with this bit set from the configuration
- EEprom. As the bit is read/write for the CPU, we can fix it here,
- if we detect that it isn't set correctly. -- REW */
-
-static void fix_rio_pci(struct pci_dev *pdev)
-{
- unsigned long hwbase;
- unsigned char __iomem *rebase;
- unsigned int t;
-
-#define CNTRL_REG_OFFSET 0x50
-#define CNTRL_REG_GOODVALUE 0x18260000
-
- hwbase = pci_resource_start(pdev, 0);
- rebase = ioremap(hwbase, 0x80);
- t = readl(rebase + CNTRL_REG_OFFSET);
- if (t != CNTRL_REG_GOODVALUE) {
- printk(KERN_DEBUG "rio: performing cntrl reg fix: %08x -> %08x\n", t, CNTRL_REG_GOODVALUE);
- writel(CNTRL_REG_GOODVALUE, rebase + CNTRL_REG_OFFSET);
- }
- iounmap(rebase);
-}
-#endif
-
-
-static int __init rio_init(void)
-{
- int found = 0;
- int i;
- struct Host *hp;
- int retval;
- struct vpd_prom *vpdp;
- int okboard;
-
-#ifdef CONFIG_PCI
- struct pci_dev *pdev = NULL;
- unsigned short tshort;
-#endif
-
- func_enter();
- rio_dprintk(RIO_DEBUG_INIT, "Initing rio module... (rio_debug=%d)\n", rio_debug);
-
- if (abs((long) (&rio_debug) - rio_debug) < 0x10000) {
- printk(KERN_WARNING "rio: rio_debug is an address, instead of a value. " "Assuming -1. Was %x/%p.\n", rio_debug, &rio_debug);
- rio_debug = -1;
- }
-
- if (misc_register(&rio_fw_device) < 0) {
- printk(KERN_ERR "RIO: Unable to register firmware loader driver.\n");
- return -EIO;
- }
-
- retval = rio_init_datastructures();
- if (retval < 0) {
- misc_deregister(&rio_fw_device);
- return retval;
- }
-#ifdef CONFIG_PCI
- /* First look for the JET devices: */
- while ((pdev = pci_get_device(PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8, pdev))) {
- u32 tint;
-
- if (pci_enable_device(pdev))
- continue;
-
- /* Specialix has a whole bunch of cards with
- 0x2000 as the device ID. They say its because
- the standard requires it. Stupid standard. */
- /* It seems that reading a word doesn't work reliably on 2.0.
- Also, reading a non-aligned dword doesn't work. So we read the
- whole dword at 0x2c and extract the word at 0x2e (SUBSYSTEM_ID)
- ourselves */
- pci_read_config_dword(pdev, 0x2c, &tint);
- tshort = (tint >> 16) & 0xffff;
- rio_dprintk(RIO_DEBUG_PROBE, "Got a specialix card: %x.\n", tint);
- if (tshort != 0x0100) {
- rio_dprintk(RIO_DEBUG_PROBE, "But it's not a RIO card (%d)...\n", tshort);
- continue;
- }
- rio_dprintk(RIO_DEBUG_PROBE, "cp1\n");
-
- hp = &p->RIOHosts[p->RIONumHosts];
- hp->PaddrP = pci_resource_start(pdev, 2);
- hp->Ivec = pdev->irq;
- if (((1 << hp->Ivec) & rio_irqmask) == 0)
- hp->Ivec = 0;
- hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP, RIO_WINDOW_LEN);
- hp->CardP = (struct DpRam __iomem *) hp->Caddr;
- hp->Type = RIO_PCI;
- hp->Copy = rio_copy_to_card;
- hp->Mode = RIO_PCI_BOOT_FROM_RAM;
- spin_lock_init(&hp->HostLock);
- rio_reset_interrupt(hp);
- rio_start_card_running(hp);
-
- rio_dprintk(RIO_DEBUG_PROBE, "Going to test it (%p/%p).\n", (void *) p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr);
- if (RIOBoardTest(p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr, RIO_PCI, 0) == 0) {
- rio_dprintk(RIO_DEBUG_INIT, "Done RIOBoardTest\n");
- writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
- p->RIOHosts[p->RIONumHosts].UniqueNum =
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[0]) & 0xFF) << 0) |
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[1]) & 0xFF) << 8) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[2]) & 0xFF) << 16) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[3]) & 0xFF) << 24);
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, uniqid = %x.\n", p->RIOHosts[p->RIONumHosts].UniqueNum);
-
- fix_rio_pci(pdev);
-
- p->RIOHosts[p->RIONumHosts].pdev = pdev;
- pci_dev_get(pdev);
-
- p->RIOLastPCISearch = 0;
- p->RIONumHosts++;
- found++;
- } else {
- iounmap(p->RIOHosts[p->RIONumHosts].Caddr);
- p->RIOHosts[p->RIONumHosts].Caddr = NULL;
- }
- }
-
- /* Then look for the older PCI card.... : */
-
- /* These older PCI cards have problems (only byte-mode access is
- supported), which makes them a bit awkward to support.
- They also have problems sharing interrupts. Be careful.
- (The driver now refuses to share interrupts for these
- cards. This should be sufficient).
- */
-
- /* Then look for the older RIO/PCI devices: */
- while ((pdev = pci_get_device(PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_RIO, pdev))) {
- if (pci_enable_device(pdev))
- continue;
-
-#ifdef CONFIG_RIO_OLDPCI
- hp = &p->RIOHosts[p->RIONumHosts];
- hp->PaddrP = pci_resource_start(pdev, 0);
- hp->Ivec = pdev->irq;
- if (((1 << hp->Ivec) & rio_irqmask) == 0)
- hp->Ivec = 0;
- hp->Ivec |= 0x8000; /* Mark as non-sharable */
- hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP, RIO_WINDOW_LEN);
- hp->CardP = (struct DpRam __iomem *) hp->Caddr;
- hp->Type = RIO_PCI;
- hp->Copy = rio_copy_to_card;
- hp->Mode = RIO_PCI_BOOT_FROM_RAM;
- spin_lock_init(&hp->HostLock);
-
- rio_dprintk(RIO_DEBUG_PROBE, "Ivec: %x\n", hp->Ivec);
- rio_dprintk(RIO_DEBUG_PROBE, "Mode: %x\n", hp->Mode);
-
- rio_reset_interrupt(hp);
- rio_start_card_running(hp);
- rio_dprintk(RIO_DEBUG_PROBE, "Going to test it (%p/%p).\n", (void *) p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr);
- if (RIOBoardTest(p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr, RIO_PCI, 0) == 0) {
- writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
- p->RIOHosts[p->RIONumHosts].UniqueNum =
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[0]) & 0xFF) << 0) |
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[1]) & 0xFF) << 8) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[2]) & 0xFF) << 16) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[3]) & 0xFF) << 24);
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, uniqid = %x.\n", p->RIOHosts[p->RIONumHosts].UniqueNum);
-
- p->RIOHosts[p->RIONumHosts].pdev = pdev;
- pci_dev_get(pdev);
-
- p->RIOLastPCISearch = 0;
- p->RIONumHosts++;
- found++;
- } else {
- iounmap(p->RIOHosts[p->RIONumHosts].Caddr);
- p->RIOHosts[p->RIONumHosts].Caddr = NULL;
- }
-#else
- printk(KERN_ERR "Found an older RIO PCI card, but the driver is not " "compiled to support it.\n");
-#endif
- }
-#endif /* PCI */
-
- /* Now probe for ISA cards... */
- for (i = 0; i < NR_RIO_ADDRS; i++) {
- hp = &p->RIOHosts[p->RIONumHosts];
- hp->PaddrP = rio_probe_addrs[i];
- /* There was something about the IRQs of these cards. 'Forget what.--REW */
- hp->Ivec = 0;
- hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP, RIO_WINDOW_LEN);
- hp->CardP = (struct DpRam __iomem *) hp->Caddr;
- hp->Type = RIO_AT;
- hp->Copy = rio_copy_to_card; /* AT card PCI???? - PVDL
- * -- YES! this is now a normal copy. Only the
- * old PCI card uses the special PCI copy.
- * Moreover, the ISA card will work with the
- * special PCI copy anyway. -- REW */
- hp->Mode = 0;
- spin_lock_init(&hp->HostLock);
-
- vpdp = get_VPD_PROM(hp);
- rio_dprintk(RIO_DEBUG_PROBE, "Got VPD ROM\n");
- okboard = 0;
- if ((strncmp(vpdp->identifier, RIO_ISA_IDENT, 16) == 0) || (strncmp(vpdp->identifier, RIO_ISA2_IDENT, 16) == 0) || (strncmp(vpdp->identifier, RIO_ISA3_IDENT, 16) == 0)) {
- /* Board is present... */
- if (RIOBoardTest(hp->PaddrP, hp->Caddr, RIO_AT, 0) == 0) {
- /* ... and feeling fine!!!! */
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, uniqid = %x.\n", p->RIOHosts[p->RIONumHosts].UniqueNum);
- if (RIOAssignAT(p, hp->PaddrP, hp->Caddr, 0)) {
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, host%d uniqid = %x.\n", p->RIONumHosts, p->RIOHosts[p->RIONumHosts - 1].UniqueNum);
- okboard++;
- found++;
- }
- }
-
- if (!okboard) {
- iounmap(hp->Caddr);
- hp->Caddr = NULL;
- }
- }
- }
-
-
- for (i = 0; i < p->RIONumHosts; i++) {
- hp = &p->RIOHosts[i];
- if (hp->Ivec) {
- int mode = IRQF_SHARED;
- if (hp->Ivec & 0x8000) {
- mode = 0;
- hp->Ivec &= 0x7fff;
- }
- rio_dprintk(RIO_DEBUG_INIT, "Requesting interrupt hp: %p rio_interrupt: %d Mode: %x\n", hp, hp->Ivec, hp->Mode);
- retval = request_irq(hp->Ivec, rio_interrupt, mode, "rio", hp);
- rio_dprintk(RIO_DEBUG_INIT, "Return value from request_irq: %d\n", retval);
- if (retval) {
- printk(KERN_ERR "rio: Cannot allocate irq %d.\n", hp->Ivec);
- hp->Ivec = 0;
- }
- rio_dprintk(RIO_DEBUG_INIT, "Got irq %d.\n", hp->Ivec);
- if (hp->Ivec != 0) {
- rio_dprintk(RIO_DEBUG_INIT, "Enabling interrupts on rio card.\n");
- hp->Mode |= RIO_PCI_INT_ENABLE;
- } else
- hp->Mode &= ~RIO_PCI_INT_ENABLE;
- rio_dprintk(RIO_DEBUG_INIT, "New Mode: %x\n", hp->Mode);
- rio_start_card_running(hp);
- }
- /* Init the timer "always" to make sure that it can safely be
- deleted when we unload... */
-
- setup_timer(&hp->timer, rio_pollfunc, i);
- if (!hp->Ivec) {
- rio_dprintk(RIO_DEBUG_INIT, "Starting polling at %dj intervals.\n", rio_poll);
- mod_timer(&hp->timer, jiffies + rio_poll);
- }
- }
-
- if (found) {
- rio_dprintk(RIO_DEBUG_INIT, "rio: total of %d boards detected.\n", found);
- rio_init_drivers();
- } else {
- /* deregister the misc device we created earlier */
- misc_deregister(&rio_fw_device);
- }
-
- func_exit();
- return found ? 0 : -EIO;
-}
-
-
-static void __exit rio_exit(void)
-{
- int i;
- struct Host *hp;
-
- func_enter();
-
- for (i = 0, hp = p->RIOHosts; i < p->RIONumHosts; i++, hp++) {
- RIOHostReset(hp->Type, hp->CardP, hp->Slot);
- if (hp->Ivec) {
- free_irq(hp->Ivec, hp);
- rio_dprintk(RIO_DEBUG_INIT, "freed irq %d.\n", hp->Ivec);
- }
- /* It is safe/allowed to del_timer a non-active timer */
- del_timer_sync(&hp->timer);
- if (hp->Caddr)
- iounmap(hp->Caddr);
- if (hp->Type == RIO_PCI)
- pci_dev_put(hp->pdev);
- }
-
- if (misc_deregister(&rio_fw_device) < 0) {
- printk(KERN_INFO "rio: couldn't deregister control-device\n");
- }
-
-
- rio_dprintk(RIO_DEBUG_CLEANUP, "Cleaning up drivers\n");
-
- rio_release_drivers();
-
- /* Release dynamically allocated memory */
- kfree(p->RIOPortp);
- kfree(p->RIOHosts);
- kfree(p);
-
- func_exit();
-}
-
-module_init(rio_init);
-module_exit(rio_exit);