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-rw-r--r--drivers/char/rio/rioparam.c663
1 files changed, 0 insertions, 663 deletions
diff --git a/drivers/char/rio/rioparam.c b/drivers/char/rio/rioparam.c
deleted file mode 100644
index 6415f3f..0000000
--- a/drivers/char/rio/rioparam.c
+++ /dev/null
@@ -1,663 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * 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.
-**
-** Module : rioparam.c
-** SID : 1.3
-** Last Modified : 11/6/98 10:33:45
-** Retrieved : 11/6/98 10:33:50
-**
-** ident @(#)rioparam.c 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-
-#include "linux_compat.h"
-#include "rio_linux.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"
-
-
-
-/*
-** The Scam, based on email from jeremyr@bugs.specialix.co.uk....
-**
-** To send a command on a particular port, you put a packet with the
-** command bit set onto the port. The command bit is in the len field,
-** and gets ORed in with the actual byte count.
-**
-** When you send a packet with the command bit set the first
-** data byte (data[0]) is interpreted as the command to execute.
-** It also governs what data structure overlay should accompany the packet.
-** Commands are defined in cirrus/cirrus.h
-**
-** If you want the command to pre-emt data already on the queue for the
-** port, set the pre-emptive bit in conjunction with the command bit.
-** It is not defined what will happen if you set the preemptive bit
-** on a packet that is NOT a command.
-**
-** Pre-emptive commands should be queued at the head of the queue using
-** add_start(), whereas normal commands and data are enqueued using
-** add_end().
-**
-** Most commands do not use the remaining bytes in the data array. The
-** exceptions are OPEN MOPEN and CONFIG. (NB. As with the SI CONFIG and
-** OPEN are currently analogous). With these three commands the following
-** 11 data bytes are all used to pass config information such as baud rate etc.
-** The fields are also defined in cirrus.h. Some contain straightforward
-** information such as the transmit XON character. Two contain the transmit and
-** receive baud rates respectively. For most baud rates there is a direct
-** mapping between the rates defined in <sys/termio.h> and the byte in the
-** packet. There are additional (non UNIX-standard) rates defined in
-** /u/dos/rio/cirrus/h/brates.h.
-**
-** The rest of the data fields contain approximations to the Cirrus registers
-** that are used to program number of bits etc. Each registers bit fields is
-** defined in cirrus.h.
-**
-** NB. Only use those bits that are defined as being driver specific
-** or common to the RTA and the driver.
-**
-** All commands going from RTA->Host will be dealt with by the Host code - you
-** will never see them. As with the SI there will be three fields to look out
-** for in each phb (not yet defined - needs defining a.s.a.p).
-**
-** modem_status - current state of handshake pins.
-**
-** port_status - current port status - equivalent to hi_stat for SI, indicates
-** if port is IDLE_OPEN, IDLE_CLOSED etc.
-**
-** break_status - bit X set if break has been received.
-**
-** Happy hacking.
-**
-*/
-
-/*
-** RIOParam is used to open or configure a port. You pass it a PortP,
-** which will have a tty struct attached to it. You also pass a command,
-** either OPEN or CONFIG. The port's setup is taken from the t_ fields
-** of the tty struct inside the PortP, and the port is either opened
-** or re-configured. You must also tell RIOParam if the device is a modem
-** device or not (i.e. top bit of minor number set or clear - take special
-** care when deciding on this!).
-** RIOParam neither flushes nor waits for drain, and is NOT preemptive.
-**
-** RIOParam assumes it will be called at splrio(), and also assumes
-** that CookMode is set correctly in the port structure.
-**
-** NB. for MPX
-** tty lock must NOT have been previously acquired.
-*/
-int RIOParam(struct Port *PortP, int cmd, int Modem, int SleepFlag)
-{
- struct tty_struct *TtyP;
- int retval;
- struct phb_param __iomem *phb_param_ptr;
- struct PKT __iomem *PacketP;
- int res;
- u8 Cor1 = 0, Cor2 = 0, Cor4 = 0, Cor5 = 0;
- u8 TxXon = 0, TxXoff = 0, RxXon = 0, RxXoff = 0;
- u8 LNext = 0, TxBaud = 0, RxBaud = 0;
- int retries = 0xff;
- unsigned long flags;
-
- func_enter();
-
- TtyP = PortP->gs.port.tty;
-
- rio_dprintk(RIO_DEBUG_PARAM, "RIOParam: Port:%d cmd:%d Modem:%d SleepFlag:%d Mapped: %d, tty=%p\n", PortP->PortNum, cmd, Modem, SleepFlag, PortP->Mapped, TtyP);
-
- if (!TtyP) {
- rio_dprintk(RIO_DEBUG_PARAM, "Can't call rioparam with null tty.\n");
-
- func_exit();
-
- return RIO_FAIL;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- if (cmd == RIOC_OPEN) {
- /*
- ** If the port is set to store or lock the parameters, and it is
- ** paramed with OPEN, we want to restore the saved port termio, but
- ** only if StoredTermio has been saved, i.e. NOT 1st open after reboot.
- */
- }
-
- /*
- ** wait for space
- */
- while (!(res = can_add_transmit(&PacketP, PortP)) || (PortP->InUse != NOT_INUSE)) {
- if (retries-- <= 0) {
- break;
- }
- if (PortP->InUse != NOT_INUSE) {
- rio_dprintk(RIO_DEBUG_PARAM, "Port IN_USE for pre-emptive command\n");
- }
-
- if (!res) {
- rio_dprintk(RIO_DEBUG_PARAM, "Port has no space on transmit queue\n");
- }
-
- if (SleepFlag != OK_TO_SLEEP) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
-
- return RIO_FAIL;
- }
-
- rio_dprintk(RIO_DEBUG_PARAM, "wait for can_add_transmit\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- retval = RIODelay(PortP, HUNDRED_MS);
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- if (retval == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_PARAM, "wait for can_add_transmit broken by signal\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
- return -EINTR;
- }
- if (PortP->State & RIO_DELETED) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
- return 0;
- }
- }
-
- if (!res) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
-
- return RIO_FAIL;
- }
-
- rio_dprintk(RIO_DEBUG_PARAM, "can_add_transmit() returns %x\n", res);
- rio_dprintk(RIO_DEBUG_PARAM, "Packet is %p\n", PacketP);
-
- phb_param_ptr = (struct phb_param __iomem *) PacketP->data;
-
-
- switch (TtyP->termios->c_cflag & CSIZE) {
- case CS5:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "5 bit data\n");
- Cor1 |= RIOC_COR1_5BITS;
- break;
- }
- case CS6:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "6 bit data\n");
- Cor1 |= RIOC_COR1_6BITS;
- break;
- }
- case CS7:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "7 bit data\n");
- Cor1 |= RIOC_COR1_7BITS;
- break;
- }
- case CS8:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "8 bit data\n");
- Cor1 |= RIOC_COR1_8BITS;
- break;
- }
- }
-
- if (TtyP->termios->c_cflag & CSTOPB) {
- rio_dprintk(RIO_DEBUG_PARAM, "2 stop bits\n");
- Cor1 |= RIOC_COR1_2STOP;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "1 stop bit\n");
- Cor1 |= RIOC_COR1_1STOP;
- }
-
- if (TtyP->termios->c_cflag & PARENB) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable parity\n");
- Cor1 |= RIOC_COR1_NORMAL;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Disable parity\n");
- Cor1 |= RIOC_COR1_NOP;
- }
- if (TtyP->termios->c_cflag & PARODD) {
- rio_dprintk(RIO_DEBUG_PARAM, "Odd parity\n");
- Cor1 |= RIOC_COR1_ODD;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Even parity\n");
- Cor1 |= RIOC_COR1_EVEN;
- }
-
- /*
- ** COR 2
- */
- if (TtyP->termios->c_iflag & IXON) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable start/stop output control\n");
- Cor2 |= RIOC_COR2_IXON;
- } else {
- if (PortP->Config & RIO_IXON) {
- rio_dprintk(RIO_DEBUG_PARAM, "Force enable start/stop output control\n");
- Cor2 |= RIOC_COR2_IXON;
- } else
- rio_dprintk(RIO_DEBUG_PARAM, "IXON has been disabled.\n");
- }
-
- if (TtyP->termios->c_iflag & IXANY) {
- if (PortP->Config & RIO_IXANY) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable any key to restart output\n");
- Cor2 |= RIOC_COR2_IXANY;
- } else
- rio_dprintk(RIO_DEBUG_PARAM, "IXANY has been disabled due to sanity reasons.\n");
- }
-
- if (TtyP->termios->c_iflag & IXOFF) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable start/stop input control 2\n");
- Cor2 |= RIOC_COR2_IXOFF;
- }
-
- if (TtyP->termios->c_cflag & HUPCL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Hangup on last close\n");
- Cor2 |= RIOC_COR2_HUPCL;
- }
-
- if (C_CRTSCTS(TtyP)) {
- rio_dprintk(RIO_DEBUG_PARAM, "Rx hardware flow control enabled\n");
- Cor2 |= RIOC_COR2_CTSFLOW;
- Cor2 |= RIOC_COR2_RTSFLOW;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Rx hardware flow control disabled\n");
- Cor2 &= ~RIOC_COR2_CTSFLOW;
- Cor2 &= ~RIOC_COR2_RTSFLOW;
- }
-
-
- if (TtyP->termios->c_cflag & CLOCAL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Local line\n");
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Possible Modem line\n");
- }
-
- /*
- ** COR 4 (there is no COR 3)
- */
- if (TtyP->termios->c_iflag & IGNBRK) {
- rio_dprintk(RIO_DEBUG_PARAM, "Ignore break condition\n");
- Cor4 |= RIOC_COR4_IGNBRK;
- }
- if (!(TtyP->termios->c_iflag & BRKINT)) {
- rio_dprintk(RIO_DEBUG_PARAM, "Break generates NULL condition\n");
- Cor4 |= RIOC_COR4_NBRKINT;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Interrupt on break condition\n");
- }
-
- if (TtyP->termios->c_iflag & INLCR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map newline to carriage return on input\n");
- Cor4 |= RIOC_COR4_INLCR;
- }
-
- if (TtyP->termios->c_iflag & IGNCR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Ignore carriage return on input\n");
- Cor4 |= RIOC_COR4_IGNCR;
- }
-
- if (TtyP->termios->c_iflag & ICRNL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map carriage return to newline on input\n");
- Cor4 |= RIOC_COR4_ICRNL;
- }
- if (TtyP->termios->c_iflag & IGNPAR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Ignore characters with parity errors\n");
- Cor4 |= RIOC_COR4_IGNPAR;
- }
- if (TtyP->termios->c_iflag & PARMRK) {
- rio_dprintk(RIO_DEBUG_PARAM, "Mark parity errors\n");
- Cor4 |= RIOC_COR4_PARMRK;
- }
-
- /*
- ** Set the RAISEMOD flag to ensure that the modem lines are raised
- ** on reception of a config packet.
- ** The download code handles the zero baud condition.
- */
- Cor4 |= RIOC_COR4_RAISEMOD;
-
- /*
- ** COR 5
- */
-
- Cor5 = RIOC_COR5_CMOE;
-
- /*
- ** Set to monitor tbusy/tstop (or not).
- */
-
- if (PortP->MonitorTstate)
- Cor5 |= RIOC_COR5_TSTATE_ON;
- else
- Cor5 |= RIOC_COR5_TSTATE_OFF;
-
- /*
- ** Could set LNE here if you wanted LNext processing. SVR4 will use it.
- */
- if (TtyP->termios->c_iflag & ISTRIP) {
- rio_dprintk(RIO_DEBUG_PARAM, "Strip input characters\n");
- if (!(PortP->State & RIO_TRIAD_MODE)) {
- Cor5 |= RIOC_COR5_ISTRIP;
- }
- }
-
- if (TtyP->termios->c_oflag & ONLCR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map newline to carriage-return, newline on output\n");
- if (PortP->CookMode == COOK_MEDIUM)
- Cor5 |= RIOC_COR5_ONLCR;
- }
- if (TtyP->termios->c_oflag & OCRNL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map carriage return to newline on output\n");
- if (PortP->CookMode == COOK_MEDIUM)
- Cor5 |= RIOC_COR5_OCRNL;
- }
- if ((TtyP->termios->c_oflag & TABDLY) == TAB3) {
- rio_dprintk(RIO_DEBUG_PARAM, "Tab delay 3 set\n");
- if (PortP->CookMode == COOK_MEDIUM)
- Cor5 |= RIOC_COR5_TAB3;
- }
-
- /*
- ** Flow control bytes.
- */
- TxXon = TtyP->termios->c_cc[VSTART];
- TxXoff = TtyP->termios->c_cc[VSTOP];
- RxXon = TtyP->termios->c_cc[VSTART];
- RxXoff = TtyP->termios->c_cc[VSTOP];
- /*
- ** LNEXT byte
- */
- LNext = 0;
-
- /*
- ** Baud rate bytes
- */
- rio_dprintk(RIO_DEBUG_PARAM, "Mapping of rx/tx baud %x (%x)\n", TtyP->termios->c_cflag, CBAUD);
-
- switch (TtyP->termios->c_cflag & CBAUD) {
-#define e(b) case B ## b : RxBaud = TxBaud = RIO_B ## b ;break
- e(50);
- e(75);
- e(110);
- e(134);
- e(150);
- e(200);
- e(300);
- e(600);
- e(1200);
- e(1800);
- e(2400);
- e(4800);
- e(9600);
- e(19200);
- e(38400);
- e(57600);
- e(115200); /* e(230400);e(460800); e(921600); */
- }
-
- rio_dprintk(RIO_DEBUG_PARAM, "tx baud 0x%x, rx baud 0x%x\n", TxBaud, RxBaud);
-
-
- /*
- ** Leftovers
- */
- if (TtyP->termios->c_cflag & CREAD)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable receiver\n");
-#ifdef RCV1EN
- if (TtyP->termios->c_cflag & RCV1EN)
- rio_dprintk(RIO_DEBUG_PARAM, "RCV1EN (?)\n");
-#endif
-#ifdef XMT1EN
- if (TtyP->termios->c_cflag & XMT1EN)
- rio_dprintk(RIO_DEBUG_PARAM, "XMT1EN (?)\n");
-#endif
- if (TtyP->termios->c_lflag & ISIG)
- rio_dprintk(RIO_DEBUG_PARAM, "Input character signal generating enabled\n");
- if (TtyP->termios->c_lflag & ICANON)
- rio_dprintk(RIO_DEBUG_PARAM, "Canonical input: erase and kill enabled\n");
- if (TtyP->termios->c_lflag & XCASE)
- rio_dprintk(RIO_DEBUG_PARAM, "Canonical upper/lower presentation\n");
- if (TtyP->termios->c_lflag & ECHO)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable input echo\n");
- if (TtyP->termios->c_lflag & ECHOE)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable echo erase\n");
- if (TtyP->termios->c_lflag & ECHOK)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable echo kill\n");
- if (TtyP->termios->c_lflag & ECHONL)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable echo newline\n");
- if (TtyP->termios->c_lflag & NOFLSH)
- rio_dprintk(RIO_DEBUG_PARAM, "Disable flush after interrupt or quit\n");
-#ifdef TOSTOP
- if (TtyP->termios->c_lflag & TOSTOP)
- rio_dprintk(RIO_DEBUG_PARAM, "Send SIGTTOU for background output\n");
-#endif
-#ifdef XCLUDE
- if (TtyP->termios->c_lflag & XCLUDE)
- rio_dprintk(RIO_DEBUG_PARAM, "Exclusive use of this line\n");
-#endif
- if (TtyP->termios->c_iflag & IUCLC)
- rio_dprintk(RIO_DEBUG_PARAM, "Map uppercase to lowercase on input\n");
- if (TtyP->termios->c_oflag & OPOST)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable output post-processing\n");
- if (TtyP->termios->c_oflag & OLCUC)
- rio_dprintk(RIO_DEBUG_PARAM, "Map lowercase to uppercase on output\n");
- if (TtyP->termios->c_oflag & ONOCR)
- rio_dprintk(RIO_DEBUG_PARAM, "No carriage return output at column 0\n");
- if (TtyP->termios->c_oflag & ONLRET)
- rio_dprintk(RIO_DEBUG_PARAM, "Newline performs carriage return function\n");
- if (TtyP->termios->c_oflag & OFILL)
- rio_dprintk(RIO_DEBUG_PARAM, "Use fill characters for delay\n");
- if (TtyP->termios->c_oflag & OFDEL)
- rio_dprintk(RIO_DEBUG_PARAM, "Fill character is DEL\n");
- if (TtyP->termios->c_oflag & NLDLY)
- rio_dprintk(RIO_DEBUG_PARAM, "Newline delay set\n");
- if (TtyP->termios->c_oflag & CRDLY)
- rio_dprintk(RIO_DEBUG_PARAM, "Carriage return delay set\n");
- if (TtyP->termios->c_oflag & TABDLY)
- rio_dprintk(RIO_DEBUG_PARAM, "Tab delay set\n");
- /*
- ** These things are kind of useful in a later life!
- */
- PortP->Cor2Copy = Cor2;
-
- if (PortP->State & RIO_DELETED) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
-
- return RIO_FAIL;
- }
-
- /*
- ** Actually write the info into the packet to be sent
- */
- writeb(cmd, &phb_param_ptr->Cmd);
- writeb(Cor1, &phb_param_ptr->Cor1);
- writeb(Cor2, &phb_param_ptr->Cor2);
- writeb(Cor4, &phb_param_ptr->Cor4);
- writeb(Cor5, &phb_param_ptr->Cor5);
- writeb(TxXon, &phb_param_ptr->TxXon);
- writeb(RxXon, &phb_param_ptr->RxXon);
- writeb(TxXoff, &phb_param_ptr->TxXoff);
- writeb(RxXoff, &phb_param_ptr->RxXoff);
- writeb(LNext, &phb_param_ptr->LNext);
- writeb(TxBaud, &phb_param_ptr->TxBaud);
- writeb(RxBaud, &phb_param_ptr->RxBaud);
-
- /*
- ** Set the length/command field
- */
- writeb(12 | PKT_CMD_BIT, &PacketP->len);
-
- /*
- ** The packet is formed - now, whack it off
- ** to its final destination:
- */
- add_transmit(PortP);
- /*
- ** Count characters transmitted for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->txchars += 12;
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-
- rio_dprintk(RIO_DEBUG_PARAM, "add_transmit returned.\n");
- /*
- ** job done.
- */
- func_exit();
-
- return 0;
-}
-
-
-/*
-** We can add another packet to a transmit queue if the packet pointer pointed
-** to by the TxAdd pointer has PKT_IN_USE clear in its address.
-*/
-int can_add_transmit(struct PKT __iomem **PktP, struct Port *PortP)
-{
- struct PKT __iomem *tp;
-
- *PktP = tp = (struct PKT __iomem *) RIO_PTR(PortP->Caddr, readw(PortP->TxAdd));
-
- return !((unsigned long) tp & PKT_IN_USE);
-}
-
-/*
-** To add a packet to the queue, you set the PKT_IN_USE bit in the address,
-** and then move the TxAdd pointer along one position to point to the next
-** packet pointer. You must wrap the pointer from the end back to the start.
-*/
-void add_transmit(struct Port *PortP)
-{
- if (readw(PortP->TxAdd) & PKT_IN_USE) {
- rio_dprintk(RIO_DEBUG_PARAM, "add_transmit: Packet has been stolen!");
- }
- writew(readw(PortP->TxAdd) | PKT_IN_USE, PortP->TxAdd);
- PortP->TxAdd = (PortP->TxAdd == PortP->TxEnd) ? PortP->TxStart : PortP->TxAdd + 1;
- writew(RIO_OFF(PortP->Caddr, PortP->TxAdd), &PortP->PhbP->tx_add);
-}
-
-/****************************************
- * Put a packet onto the end of the
- * free list
- ****************************************/
-void put_free_end(struct Host *HostP, struct PKT __iomem *PktP)
-{
- struct rio_free_list __iomem *tmp_pointer;
- unsigned short old_end, new_end;
- unsigned long flags;
-
- rio_spin_lock_irqsave(&HostP->HostLock, flags);
-
- /*************************************************
- * Put a packet back onto the back of the free list
- *
- ************************************************/
-
- rio_dprintk(RIO_DEBUG_PFE, "put_free_end(PktP=%p)\n", PktP);
-
- if ((old_end = readw(&HostP->ParmMapP->free_list_end)) != TPNULL) {
- new_end = RIO_OFF(HostP->Caddr, PktP);
- tmp_pointer = (struct rio_free_list __iomem *) RIO_PTR(HostP->Caddr, old_end);
- writew(new_end, &tmp_pointer->next);
- writew(old_end, &((struct rio_free_list __iomem *) PktP)->prev);
- writew(TPNULL, &((struct rio_free_list __iomem *) PktP)->next);
- writew(new_end, &HostP->ParmMapP->free_list_end);
- } else { /* First packet on the free list this should never happen! */
- rio_dprintk(RIO_DEBUG_PFE, "put_free_end(): This should never happen\n");
- writew(RIO_OFF(HostP->Caddr, PktP), &HostP->ParmMapP->free_list_end);
- tmp_pointer = (struct rio_free_list __iomem *) PktP;
- writew(TPNULL, &tmp_pointer->prev);
- writew(TPNULL, &tmp_pointer->next);
- }
- rio_dprintk(RIO_DEBUG_CMD, "Before unlock: %p\n", &HostP->HostLock);
- rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
-}
-
-/*
-** can_remove_receive(PktP,P) returns non-zero if PKT_IN_USE is set
-** for the next packet on the queue. It will also set PktP to point to the
-** relevant packet, [having cleared the PKT_IN_USE bit]. If PKT_IN_USE is clear,
-** then can_remove_receive() returns 0.
-*/
-int can_remove_receive(struct PKT __iomem **PktP, struct Port *PortP)
-{
- if (readw(PortP->RxRemove) & PKT_IN_USE) {
- *PktP = (struct PKT __iomem *) RIO_PTR(PortP->Caddr, readw(PortP->RxRemove) & ~PKT_IN_USE);
- return 1;
- }
- return 0;
-}
-
-/*
-** To remove a packet from the receive queue you clear its PKT_IN_USE bit,
-** and then bump the pointers. Once the pointers get to the end, they must
-** be wrapped back to the start.
-*/
-void remove_receive(struct Port *PortP)
-{
- writew(readw(PortP->RxRemove) & ~PKT_IN_USE, PortP->RxRemove);
- PortP->RxRemove = (PortP->RxRemove == PortP->RxEnd) ? PortP->RxStart : PortP->RxRemove + 1;
- writew(RIO_OFF(PortP->Caddr, PortP->RxRemove), &PortP->PhbP->rx_remove);
-}
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