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path: root/drivers/net/irda/donauboe.c
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Diffstat (limited to 'drivers/net/irda/donauboe.c')
-rw-r--r--drivers/net/irda/donauboe.c1732
1 files changed, 0 insertions, 1732 deletions
diff --git a/drivers/net/irda/donauboe.c b/drivers/net/irda/donauboe.c
deleted file mode 100644
index b337e6d23a88..000000000000
--- a/drivers/net/irda/donauboe.c
+++ /dev/null
@@ -1,1732 +0,0 @@
-/*****************************************************************
- *
- * Filename: donauboe.c
- * Version: 2.17
- * Description: Driver for the Toshiba OBOE (or type-O or 701)
- * FIR Chipset, also supports the DONAUOBOE (type-DO
- * or d01) FIR chipset which as far as I know is
- * register compatible.
- * Documentation: http://libxg.free.fr/irda/lib-irda.html
- * Status: Experimental.
- * Author: James McKenzie <james@fishsoup.dhs.org>
- * Created at: Sat May 8 12:35:27 1999
- * Modified: Paul Bristow <paul.bristow@technologist.com>
- * Modified: Mon Nov 11 19:10:05 1999
- * Modified: James McKenzie <james@fishsoup.dhs.org>
- * Modified: Thu Mar 16 12:49:00 2000 (Substantial rewrite)
- * Modified: Sat Apr 29 00:23:03 2000 (Added DONAUOBOE support)
- * Modified: Wed May 24 23:45:02 2000 (Fixed chipio_t structure)
- * Modified: 2.13 Christian Gennerat <christian.gennerat@polytechnique.org>
- * Modified: 2.13 dim jan 07 21:57:39 2001 (tested with kernel 2.4 & irnet/ppp)
- * Modified: 2.14 Christian Gennerat <christian.gennerat@polytechnique.org>
- * Modified: 2.14 lun fev 05 17:55:59 2001 (adapted to patch-2.4.1-pre8-irda1)
- * Modified: 2.15 Martin Lucina <mato@kotelna.sk>
- * Modified: 2.15 Fri Jun 21 20:40:59 2002 (sync with 2.4.18, substantial fixes)
- * Modified: 2.16 Martin Lucina <mato@kotelna.sk>
- * Modified: 2.16 Sat Jun 22 18:54:29 2002 (fix freeregion, default to verbose)
- * Modified: 2.17 Christian Gennerat <christian.gennerat@polytechnique.org>
- * Modified: 2.17 jeu sep 12 08:50:20 2002 (save_flags();cli(); replaced by spinlocks)
- * Modified: 2.18 Christian Gennerat <christian.gennerat@polytechnique.org>
- * Modified: 2.18 ven jan 10 03:14:16 2003 Change probe default options
- *
- * Copyright (c) 1999 James McKenzie, All Rights Reserved.
- *
- * 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.
- *
- * Neither James McKenzie nor Cambridge University admit liability nor
- * provide warranty for any of this software. This material is
- * provided "AS-IS" and at no charge.
- *
- * Applicable Models : Libretto 100/110CT and many more.
- * Toshiba refers to this chip as the type-O IR port,
- * or the type-DO IR port.
- *
- ********************************************************************/
-
-/* Look at toshoboe.h (currently in include/net/irda) for details of */
-/* Where to get documentation on the chip */
-
-/* See below for a description of the logic in this driver */
-
-/* User servicable parts */
-/* USE_PROBE Create the code which probes the chip and does a few tests */
-/* do_probe module parameter Enable this code */
-/* Probe code is very useful for understanding how the hardware works */
-/* Use it with various combinations of TT_LEN, RX_LEN */
-/* Strongly recommended, disable if the probe fails on your machine */
-/* and send me <james@fishsoup.dhs.org> the output of dmesg */
-#define USE_PROBE 1
-#undef USE_PROBE
-
-/* Trace Transmit ring, interrupts, Receive ring or not ? */
-#define PROBE_VERBOSE 1
-
-/* Debug option, examine sent and received raw data */
-/* Irdadump is better, but does not see all packets. enable it if you want. */
-#undef DUMP_PACKETS
-
-/* MIR mode has not been tested. Some behaviour is different */
-/* Seems to work against an Ericsson R520 for me. -Martin */
-#define USE_MIR
-
-/* Schedule back to back hardware transmits wherever possible, otherwise */
-/* we need an interrupt for every frame, unset if oboe works for a bit and */
-/* then hangs */
-#define OPTIMIZE_TX
-
-/* Set the number of slots in the rings */
-/* If you get rx/tx fifo overflows at high bitrates, you can try increasing */
-/* these */
-
-#define RING_SIZE (OBOE_RING_SIZE_RX8 | OBOE_RING_SIZE_TX8)
-#define TX_SLOTS 8
-#define RX_SLOTS 8
-
-
-/* Less user servicable parts below here */
-
-/* Test, Transmit and receive buffer sizes, adjust at your peril */
-/* remarks: nfs usually needs 1k blocks */
-/* remarks: in SIR mode, CRC is received, -> RX_LEN=TX_LEN+2 */
-/* remarks: test accepts large blocks. Standard is 0x80 */
-/* When TT_LEN > RX_LEN (SIR mode) data is stored in successive slots. */
-/* When 3 or more slots are needed for each test packet, */
-/* data received in the first slots is overwritten, even */
-/* if OBOE_CTL_RX_HW_OWNS is not set, without any error! */
-#define TT_LEN 0x80
-#define TX_LEN 0xc00
-#define RX_LEN 0xc04
-/* Real transmitted length (SIR mode) is about 14+(2%*TX_LEN) more */
-/* long than user-defined length (see async_wrap_skb) and is less then 4K */
-/* Real received length is (max RX_LEN) differs from user-defined */
-/* length only b the CRC (2 or 4 bytes) */
-#define BUF_SAFETY 0x7a
-#define RX_BUF_SZ (RX_LEN)
-#define TX_BUF_SZ (TX_LEN+BUF_SAFETY)
-
-
-/* Logic of the netdev part of this driver */
-
-/* The RX ring is filled with buffers, when a packet arrives */
-/* it is DMA'd into the buffer which is marked used and RxDone called */
-/* RxDone forms an skb (and checks the CRC if in SIR mode) and ships */
-/* the packet off upstairs */
-
-/* The transmitter on the oboe chip can work in one of two modes */
-/* for each ring->tx[] the transmitter can either */
-/* a) transmit the packet, leave the trasmitter enabled and proceed to */
-/* the next ring */
-/* OR */
-/* b) transmit the packet, switch off the transmitter and issue TxDone */
-
-/* All packets are entered into the ring in mode b), if the ring was */
-/* empty the transmitter is started. */
-
-/* If OPTIMIZE_TX is defined then in TxDone if the ring contains */
-/* more than one packet, all but the last are set to mode a) [HOWEVER */
-/* the hardware may not notice this, this is why we start in mode b) ] */
-/* then restart the transmitter */
-
-/* If OPTIMIZE_TX is not defined then we just restart the transmitter */
-/* if the ring isn't empty */
-
-/* Speed changes are delayed until the TxRing is empty */
-/* mtt is handled by generating packets with bad CRCs, before the data */
-
-/* TODO: */
-/* check the mtt works ok */
-/* finish the watchdog */
-
-/* No user servicable parts below here */
-
-#include <linux/module.h>
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/rtnetlink.h>
-
-#include <asm/io.h>
-
-#include <net/irda/wrapper.h>
-#include <net/irda/irda.h>
-//#include <net/irda/irmod.h>
-//#include <net/irda/irlap_frame.h>
-#include <net/irda/irda_device.h>
-#include <net/irda/crc.h>
-
-#include "donauboe.h"
-
-#define INB(port) inb_p(port)
-#define OUTB(val,port) outb_p(val,port)
-#define OUTBP(val,port) outb_p(val,port)
-
-#define PROMPT OUTB(OBOE_PROMPT_BIT,OBOE_PROMPT);
-
-#if PROBE_VERBOSE
-#define PROBE_DEBUG(args...) (printk (args))
-#else
-#define PROBE_DEBUG(args...) ;
-#endif
-
-/* Set the DMA to be byte at a time */
-#define CONFIG0H_DMA_OFF OBOE_CONFIG0H_RCVANY
-#define CONFIG0H_DMA_ON_NORX CONFIG0H_DMA_OFF| OBOE_CONFIG0H_ENDMAC
-#define CONFIG0H_DMA_ON CONFIG0H_DMA_ON_NORX | OBOE_CONFIG0H_ENRX
-
-static const struct pci_device_id toshoboe_pci_tbl[] = {
- { PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_FIR701, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_FIRD01, PCI_ANY_ID, PCI_ANY_ID, },
- { } /* Terminating entry */
-};
-MODULE_DEVICE_TABLE(pci, toshoboe_pci_tbl);
-
-#define DRIVER_NAME "toshoboe"
-static char *driver_name = DRIVER_NAME;
-
-static int max_baud = 4000000;
-#ifdef USE_PROBE
-static bool do_probe = false;
-#endif
-
-
-/**********************************************************************/
-static int
-toshoboe_checkfcs (unsigned char *buf, int len)
-{
- int i;
- union
- {
- __u16 value;
- __u8 bytes[2];
- }
- fcs;
-
- fcs.value = INIT_FCS;
-
- for (i = 0; i < len; ++i)
- fcs.value = irda_fcs (fcs.value, *(buf++));
-
- return fcs.value == GOOD_FCS;
-}
-
-/***********************************************************************/
-/* Generic chip handling code */
-#ifdef DUMP_PACKETS
-static unsigned char dump[50];
-static void
-_dumpbufs (unsigned char *data, int len, char tete)
-{
-int i,j;
-char head=tete;
-for (i=0;i<len;i+=16) {
- for (j=0;j<16 && i+j<len;j++) { sprintf(&dump[3*j],"%02x.",data[i+j]); }
- dump [3*j]=0;
- pr_debug("%c%s\n", head, dump);
- head='+';
- }
-}
-#endif
-
-#ifdef USE_PROBE
-/* Dump the registers */
-static void
-toshoboe_dumpregs (struct toshoboe_cb *self)
-{
- __u32 ringbase;
-
- ringbase = INB (OBOE_RING_BASE0) << 10;
- ringbase |= INB (OBOE_RING_BASE1) << 18;
- ringbase |= INB (OBOE_RING_BASE2) << 26;
-
- printk (KERN_ERR DRIVER_NAME ": Register dump:\n");
- printk (KERN_ERR "Interrupts: Tx:%d Rx:%d TxUnder:%d RxOver:%d Sip:%d\n",
- self->int_tx, self->int_rx, self->int_txunder, self->int_rxover,
- self->int_sip);
- printk (KERN_ERR "RX %02x TX %02x RingBase %08x\n",
- INB (OBOE_RXSLOT), INB (OBOE_TXSLOT), ringbase);
- printk (KERN_ERR "RING_SIZE %02x IER %02x ISR %02x\n",
- INB (OBOE_RING_SIZE), INB (OBOE_IER), INB (OBOE_ISR));
- printk (KERN_ERR "CONFIG1 %02x STATUS %02x\n",
- INB (OBOE_CONFIG1), INB (OBOE_STATUS));
- printk (KERN_ERR "CONFIG0 %02x%02x ENABLE %02x%02x\n",
- INB (OBOE_CONFIG0H), INB (OBOE_CONFIG0L),
- INB (OBOE_ENABLEH), INB (OBOE_ENABLEL));
- printk (KERN_ERR "NEW_PCONFIG %02x%02x CURR_PCONFIG %02x%02x\n",
- INB (OBOE_NEW_PCONFIGH), INB (OBOE_NEW_PCONFIGL),
- INB (OBOE_CURR_PCONFIGH), INB (OBOE_CURR_PCONFIGL));
- printk (KERN_ERR "MAXLEN %02x%02x RXCOUNT %02x%02x\n",
- INB (OBOE_MAXLENH), INB (OBOE_MAXLENL),
- INB (OBOE_RXCOUNTL), INB (OBOE_RXCOUNTH));
-
- if (self->ring)
- {
- int i;
- ringbase = virt_to_bus (self->ring);
- printk (KERN_ERR "Ring at %08x:\n", ringbase);
- printk (KERN_ERR "RX:");
- for (i = 0; i < RX_SLOTS; ++i)
- printk (" (%d,%02x)",self->ring->rx[i].len,self->ring->rx[i].control);
- printk ("\n");
- printk (KERN_ERR "TX:");
- for (i = 0; i < RX_SLOTS; ++i)
- printk (" (%d,%02x)",self->ring->tx[i].len,self->ring->tx[i].control);
- printk ("\n");
- }
-}
-#endif
-
-/*Don't let the chip look at memory */
-static void
-toshoboe_disablebm (struct toshoboe_cb *self)
-{
- __u8 command;
- pci_read_config_byte (self->pdev, PCI_COMMAND, &command);
- command &= ~PCI_COMMAND_MASTER;
- pci_write_config_byte (self->pdev, PCI_COMMAND, command);
-
-}
-
-/* Shutdown the chip and point the taskfile reg somewhere else */
-static void
-toshoboe_stopchip (struct toshoboe_cb *self)
-{
- /*Disable interrupts */
- OUTB (0x0, OBOE_IER);
- /*Disable DMA, Disable Rx, Disable Tx */
- OUTB (CONFIG0H_DMA_OFF, OBOE_CONFIG0H);
- /*Disable SIR MIR FIR, Tx and Rx */
- OUTB (0x00, OBOE_ENABLEH);
- /*Point the ring somewhere safe */
- OUTB (0x3f, OBOE_RING_BASE2);
- OUTB (0xff, OBOE_RING_BASE1);
- OUTB (0xff, OBOE_RING_BASE0);
-
- OUTB (RX_LEN >> 8, OBOE_MAXLENH);
- OUTB (RX_LEN & 0xff, OBOE_MAXLENL);
-
- /*Acknoledge any pending interrupts */
- OUTB (0xff, OBOE_ISR);
-
- /*Why */
- OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH);
-
- /*switch it off */
- OUTB (OBOE_CONFIG1_OFF, OBOE_CONFIG1);
-
- toshoboe_disablebm (self);
-}
-
-/* Transmitter initialization */
-static void
-toshoboe_start_DMA (struct toshoboe_cb *self, int opts)
-{
- OUTB (0x0, OBOE_ENABLEH);
- OUTB (CONFIG0H_DMA_ON | opts, OBOE_CONFIG0H);
- OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH);
- PROMPT;
-}
-
-/*Set the baud rate */
-static void
-toshoboe_setbaud (struct toshoboe_cb *self)
-{
- __u16 pconfig = 0;
- __u8 config0l = 0;
-
- pr_debug("%s(%d/%d)\n", __func__, self->speed, self->io.speed);
-
- switch (self->speed)
- {
- case 2400:
- case 4800:
- case 9600:
- case 19200:
- case 38400:
- case 57600:
- case 115200:
-#ifdef USE_MIR
- case 1152000:
-#endif
- case 4000000:
- break;
- default:
-
- printk (KERN_ERR DRIVER_NAME ": switch to unsupported baudrate %d\n",
- self->speed);
- return;
- }
-
- switch (self->speed)
- {
- /* For SIR the preamble is done by adding XBOFs */
- /* to the packet */
- /* set to filtered SIR mode, filter looks for BOF and EOF */
- case 2400:
- pconfig |= 47 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT;
- break;
- case 4800:
- pconfig |= 23 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT;
- break;
- case 9600:
- pconfig |= 11 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT;
- break;
- case 19200:
- pconfig |= 5 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT;
- break;
- case 38400:
- pconfig |= 2 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT;
- break;
- case 57600:
- pconfig |= 1 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT;
- break;
- case 115200:
- pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 25 << OBOE_PCONFIG_WIDTHSHIFT;
- break;
- default:
- /*Set to packet based reception */
- OUTB (RX_LEN >> 8, OBOE_MAXLENH);
- OUTB (RX_LEN & 0xff, OBOE_MAXLENL);
- break;
- }
-
- switch (self->speed)
- {
- case 2400:
- case 4800:
- case 9600:
- case 19200:
- case 38400:
- case 57600:
- case 115200:
- config0l = OBOE_CONFIG0L_ENSIR;
- if (self->async)
- {
- /*Set to character based reception */
- /*System will lock if MAXLEN=0 */
- /*so have to be careful */
- OUTB (0x01, OBOE_MAXLENH);
- OUTB (0x01, OBOE_MAXLENL);
- OUTB (0x00, OBOE_MAXLENH);
- }
- else
- {
- /*Set to packet based reception */
- config0l |= OBOE_CONFIG0L_ENSIRF;
- OUTB (RX_LEN >> 8, OBOE_MAXLENH);
- OUTB (RX_LEN & 0xff, OBOE_MAXLENL);
- }
- break;
-
-#ifdef USE_MIR
- /* MIR mode */
- /* Set for 16 bit CRC and enable MIR */
- /* Preamble now handled by the chip */
- case 1152000:
- pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT;
- pconfig |= 8 << OBOE_PCONFIG_WIDTHSHIFT;
- pconfig |= 1 << OBOE_PCONFIG_PREAMBLESHIFT;
- config0l = OBOE_CONFIG0L_CRC16 | OBOE_CONFIG0L_ENMIR;
- break;
-#endif
- /* FIR mode */
- /* Set for 32 bit CRC and enable FIR */
- /* Preamble handled by the chip */
- case 4000000:
- pconfig |= 0 << OBOE_PCONFIG_BAUDSHIFT;
- /* Documentation says 14, but toshiba use 15 in their drivers */
- pconfig |= 15 << OBOE_PCONFIG_PREAMBLESHIFT;
- config0l = OBOE_CONFIG0L_ENFIR;
- break;
- }
-
- /* Copy into new PHY config buffer */
- OUTBP (pconfig >> 8, OBOE_NEW_PCONFIGH);
- OUTB (pconfig & 0xff, OBOE_NEW_PCONFIGL);
- OUTB (config0l, OBOE_CONFIG0L);
-
- /* Now make OBOE copy from new PHY to current PHY */
- OUTB (0x0, OBOE_ENABLEH);
- OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH);
- PROMPT;
-
- /* speed change executed */
- self->new_speed = 0;
- self->io.speed = self->speed;
-}
-
-/*Let the chip look at memory */
-static void
-toshoboe_enablebm (struct toshoboe_cb *self)
-{
- pci_set_master (self->pdev);
-}
-
-/*setup the ring */
-static void
-toshoboe_initring (struct toshoboe_cb *self)
-{
- int i;
-
- for (i = 0; i < TX_SLOTS; ++i)
- {
- self->ring->tx[i].len = 0;
- self->ring->tx[i].control = 0x00;
- self->ring->tx[i].address = virt_to_bus (self->tx_bufs[i]);
- }
-
- for (i = 0; i < RX_SLOTS; ++i)
- {
- self->ring->rx[i].len = RX_LEN;
- self->ring->rx[i].len = 0;
- self->ring->rx[i].address = virt_to_bus (self->rx_bufs[i]);
- self->ring->rx[i].control = OBOE_CTL_RX_HW_OWNS;
- }
-}
-
-static void
-toshoboe_resetptrs (struct toshoboe_cb *self)
-{
- /* Can reset pointers by twidling DMA */
- OUTB (0x0, OBOE_ENABLEH);
- OUTBP (CONFIG0H_DMA_OFF, OBOE_CONFIG0H);
- OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH);
-
- self->rxs = inb_p (OBOE_RXSLOT) & OBOE_SLOT_MASK;
- self->txs = inb_p (OBOE_TXSLOT) & OBOE_SLOT_MASK;
-}
-
-/* Called in locked state */
-static void
-toshoboe_initptrs (struct toshoboe_cb *self)
-{
-
- /* spin_lock_irqsave(self->spinlock, flags); */
- /* save_flags (flags); */
-
- /* Can reset pointers by twidling DMA */
- toshoboe_resetptrs (self);
-
- OUTB (0x0, OBOE_ENABLEH);
- OUTB (CONFIG0H_DMA_ON, OBOE_CONFIG0H);
- OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH);
-
- self->txpending = 0;
-
- /* spin_unlock_irqrestore(self->spinlock, flags); */
- /* restore_flags (flags); */
-}
-
-/* Wake the chip up and get it looking at the rings */
-/* Called in locked state */
-static void
-toshoboe_startchip (struct toshoboe_cb *self)
-{
- __u32 physaddr;
-
- toshoboe_initring (self);
- toshoboe_enablebm (self);
- OUTBP (OBOE_CONFIG1_RESET, OBOE_CONFIG1);
- OUTBP (OBOE_CONFIG1_ON, OBOE_CONFIG1);
-
- /* Stop the clocks */
- OUTB (0, OBOE_ENABLEH);
-
- /*Set size of rings */
- OUTB (RING_SIZE, OBOE_RING_SIZE);
-
- /*Acknoledge any pending interrupts */
- OUTB (0xff, OBOE_ISR);
-
- /*Enable ints */
- OUTB (OBOE_INT_TXDONE | OBOE_INT_RXDONE |
- OBOE_INT_TXUNDER | OBOE_INT_RXOVER | OBOE_INT_SIP , OBOE_IER);
-
- /*Acknoledge any pending interrupts */
- OUTB (0xff, OBOE_ISR);
-
- /*Set the maximum packet length to 0xfff (4095) */
- OUTB (RX_LEN >> 8, OBOE_MAXLENH);
- OUTB (RX_LEN & 0xff, OBOE_MAXLENL);
-
- /*Shutdown DMA */
- OUTB (CONFIG0H_DMA_OFF, OBOE_CONFIG0H);
-
- /*Find out where the rings live */
- physaddr = virt_to_bus (self->ring);
-
- IRDA_ASSERT ((physaddr & 0x3ff) == 0,
- printk (KERN_ERR DRIVER_NAME "ring not correctly aligned\n");
- return;);
-
- OUTB ((physaddr >> 10) & 0xff, OBOE_RING_BASE0);
- OUTB ((physaddr >> 18) & 0xff, OBOE_RING_BASE1);
- OUTB ((physaddr >> 26) & 0x3f, OBOE_RING_BASE2);
-
- /*Enable DMA controller in byte mode and RX */
- OUTB (CONFIG0H_DMA_ON, OBOE_CONFIG0H);
-
- /* Start up the clocks */
- OUTB (OBOE_ENABLEH_PHYANDCLOCK, OBOE_ENABLEH);
-
- /*set to sensible speed */
- self->speed = 9600;
- toshoboe_setbaud (self);
- toshoboe_initptrs (self);
-}
-
-static void
-toshoboe_isntstuck (struct toshoboe_cb *self)
-{
-}
-
-static void
-toshoboe_checkstuck (struct toshoboe_cb *self)
-{
- unsigned long flags;
-
- if (0)
- {
- spin_lock_irqsave(&self->spinlock, flags);
-
- /* This will reset the chip completely */
- printk (KERN_ERR DRIVER_NAME ": Resetting chip\n");
-
- toshoboe_stopchip (self);
- toshoboe_startchip (self);
- spin_unlock_irqrestore(&self->spinlock, flags);
- }
-}
-
-/*Generate packet of about mtt us long */
-static int
-toshoboe_makemttpacket (struct toshoboe_cb *self, void *buf, int mtt)
-{
- int xbofs;
-
- xbofs = ((int) (mtt/100)) * (int) (self->speed);
- xbofs=xbofs/80000; /*Eight bits per byte, and mtt is in us*/
- xbofs++;
-
- pr_debug(DRIVER_NAME ": generated mtt of %d bytes for %d us at %d baud\n",
- xbofs, mtt, self->speed);
-
- if (xbofs > TX_LEN)
- {
- printk (KERN_ERR DRIVER_NAME ": wanted %d bytes MTT but TX_LEN is %d\n",
- xbofs, TX_LEN);
- xbofs = TX_LEN;
- }
-
- /*xbofs will do for SIR, MIR and FIR,SIR mode doesn't generate a checksum anyway */
- memset (buf, XBOF, xbofs);
-
- return xbofs;
-}
-
-#ifdef USE_PROBE
-/***********************************************************************/
-/* Probe code */
-
-static void
-toshoboe_dumptx (struct toshoboe_cb *self)
-{
- int i;
- PROBE_DEBUG(KERN_WARNING "TX:");
- for (i = 0; i < RX_SLOTS; ++i)
- PROBE_DEBUG(" (%d,%02x)",self->ring->tx[i].len,self->ring->tx[i].control);
- PROBE_DEBUG(" [%d]\n",self->speed);
-}
-
-static void
-toshoboe_dumprx (struct toshoboe_cb *self, int score)
-{
- int i;
- PROBE_DEBUG(" %d\nRX:",score);
- for (i = 0; i < RX_SLOTS; ++i)
- PROBE_DEBUG(" (%d,%02x)",self->ring->rx[i].len,self->ring->rx[i].control);
- PROBE_DEBUG("\n");
-}
-
-static inline int
-stuff_byte (__u8 byte, __u8 * buf)
-{
- switch (byte)
- {
- case BOF: /* FALLTHROUGH */
- case EOF: /* FALLTHROUGH */
- case CE:
- /* Insert transparently coded */
- buf[0] = CE; /* Send link escape */
- buf[1] = byte ^ IRDA_TRANS; /* Complement bit 5 */
- return 2;
- /* break; */
- default:
- /* Non-special value, no transparency required */
- buf[0] = byte;
- return 1;
- /* break; */
- }
-}
-
-static irqreturn_t
-toshoboe_probeinterrupt (int irq, void *dev_id)
-{
- struct toshoboe_cb *self = dev_id;
- __u8 irqstat;
-
- irqstat = INB (OBOE_ISR);
-
-/* was it us */
- if (!(irqstat & OBOE_INT_MASK))
- return IRQ_NONE;
-
-/* Ack all the interrupts */
- OUTB (irqstat, OBOE_ISR);
-
- if (irqstat & OBOE_INT_TXDONE)
- {
- int txp;
-
- self->int_tx++;
- PROBE_DEBUG("T");
-
- txp = INB (OBOE_TXSLOT) & OBOE_SLOT_MASK;
- if (self->ring->tx[txp].control & OBOE_CTL_TX_HW_OWNS)
- {
- self->int_tx+=100;
- PROBE_DEBUG("S");
- toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP);
- }
- }
-
- if (irqstat & OBOE_INT_RXDONE) {
- self->int_rx++;
- PROBE_DEBUG("R"); }
- if (irqstat & OBOE_INT_TXUNDER) {
- self->int_txunder++;
- PROBE_DEBUG("U"); }
- if (irqstat & OBOE_INT_RXOVER) {
- self->int_rxover++;
- PROBE_DEBUG("O"); }
- if (irqstat & OBOE_INT_SIP) {
- self->int_sip++;
- PROBE_DEBUG("I"); }
- return IRQ_HANDLED;
-}
-
-static int
-toshoboe_maketestpacket (unsigned char *buf, int badcrc, int fir)
-{
- int i;
- int len = 0;
- union
- {
- __u16 value;
- __u8 bytes[2];
- }
- fcs;
-
- if (fir)
- {
- memset (buf, 0, TT_LEN);
- return TT_LEN;
- }
-
- fcs.value = INIT_FCS;
-
- memset (buf, XBOF, 10);
- len += 10;
- buf[len++] = BOF;
-
- for (i = 0; i < TT_LEN; ++i)
- {
- len += stuff_byte (i, buf + len);
- fcs.value = irda_fcs (fcs.value, i);
- }
-
- len += stuff_byte (fcs.bytes[0] ^ badcrc, buf + len);
- len += stuff_byte (fcs.bytes[1] ^ badcrc, buf + len);
- buf[len++] = EOF;
- len++;
- return len;
-}
-
-static int
-toshoboe_probefail (struct toshoboe_cb *self, char *msg)
-{
- printk (KERN_ERR DRIVER_NAME "probe(%d) failed %s\n",self-> speed, msg);
- toshoboe_dumpregs (self);
- toshoboe_stopchip (self);
- free_irq (self->io.irq, (void *) self);
- return 0;
-}
-
-static int
-toshoboe_numvalidrcvs (struct toshoboe_cb *self)
-{
- int i, ret = 0;
- for (i = 0; i < RX_SLOTS; ++i)
- if ((self->ring->rx[i].control & 0xe0) == 0)
- ret++;
-
- return ret;
-}
-
-static int
-toshoboe_numrcvs (struct toshoboe_cb *self)
-{
- int i, ret = 0;
- for (i = 0; i < RX_SLOTS; ++i)
- if (!(self->ring->rx[i].control & OBOE_CTL_RX_HW_OWNS))
- ret++;
-
- return ret;
-}
-
-static int
-toshoboe_probe (struct toshoboe_cb *self)
-{
- int i, j, n;
-#ifdef USE_MIR
- static const int bauds[] = { 9600, 115200, 4000000, 1152000 };
-#else
- static const int bauds[] = { 9600, 115200, 4000000 };
-#endif
- unsigned long flags;
-
- if (request_irq (self->io.irq, toshoboe_probeinterrupt,
- self->io.irqflags, "toshoboe", (void *) self))
- {
- printk (KERN_ERR DRIVER_NAME ": probe failed to allocate irq %d\n",
- self->io.irq);
- return 0;
- }
-
- /* test 1: SIR filter and back to back */
-
- for (j = 0; j < ARRAY_SIZE(bauds); ++j)
- {
- int fir = (j > 1);
- toshoboe_stopchip (self);
-
-
- spin_lock_irqsave(&self->spinlock, flags);
- /*Address is already setup */
- toshoboe_startchip (self);
- self->int_rx = self->int_tx = 0;
- self->speed = bauds[j];
- toshoboe_setbaud (self);
- toshoboe_initptrs (self);
- spin_unlock_irqrestore(&self->spinlock, flags);
-
- self->ring->tx[self->txs].control =
-/* (FIR only) OBOE_CTL_TX_SIP needed for switching to next slot */
-/* MIR: all received data is stored in one slot */
- (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX
- : OBOE_CTL_TX_HW_OWNS ;
- self->ring->tx[self->txs].len =
- toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir);
- self->txs++;
- self->txs %= TX_SLOTS;
-
- self->ring->tx[self->txs].control =
- (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_SIP
- : OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX ;
- self->ring->tx[self->txs].len =
- toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir);
- self->txs++;
- self->txs %= TX_SLOTS;
-
- self->ring->tx[self->txs].control =
- (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX
- : OBOE_CTL_TX_HW_OWNS ;
- self->ring->tx[self->txs].len =
- toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir);
- self->txs++;
- self->txs %= TX_SLOTS;
-
- self->ring->tx[self->txs].control =
- (fir) ? OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX
- | OBOE_CTL_TX_SIP | OBOE_CTL_TX_BAD_CRC
- : OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX ;
- self->ring->tx[self->txs].len =
- toshoboe_maketestpacket (self->tx_bufs[self->txs], 0, fir);
- self->txs++;
- self->txs %= TX_SLOTS;
-
- toshoboe_dumptx (self);
- /* Turn on TX and RX and loopback */
- toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP);
-
- i = 0;
- n = fir ? 1 : 4;
- while (toshoboe_numvalidrcvs (self) != n)
- {
- if (i > 4800)
- return toshoboe_probefail (self, "filter test");
- udelay ((9600*(TT_LEN+16))/self->speed);
- i++;
- }
-
- n = fir ? 203 : 102;
- while ((toshoboe_numrcvs(self) != self->int_rx) || (self->int_tx != n))
- {
- if (i > 4800)
- return toshoboe_probefail (self, "interrupt test");
- udelay ((9600*(TT_LEN+16))/self->speed);
- i++;
- }
- toshoboe_dumprx (self,i);
-
- }
-
- /* test 2: SIR in char at a time */
-
- toshoboe_stopchip (self);
- self->int_rx = self->int_tx = 0;
-
- spin_lock_irqsave(&self->spinlock, flags);
- toshoboe_startchip (self);
- spin_unlock_irqrestore(&self->spinlock, flags);
-
- self->async = 1;
- self->speed = 115200;
- toshoboe_setbaud (self);
- self->ring->tx[self->txs].control =
- OBOE_CTL_TX_RTCENTX | OBOE_CTL_TX_HW_OWNS;
- self->ring->tx[self->txs].len = 4;
-
- ((unsigned char *) self->tx_bufs[self->txs])[0] = 'f';
- ((unsigned char *) self->tx_bufs[self->txs])[1] = 'i';
- ((unsigned char *) self->tx_bufs[self->txs])[2] = 's';
- ((unsigned char *) self->tx_bufs[self->txs])[3] = 'h';
- toshoboe_dumptx (self);
- toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP);
-
- i = 0;
- while (toshoboe_numvalidrcvs (self) != 4)
- {
- if (i > 100)
- return toshoboe_probefail (self, "Async test");
- udelay (100);
- i++;
- }
-
- while ((toshoboe_numrcvs (self) != self->int_rx) || (self->int_tx != 1))
- {
- if (i > 100)
- return toshoboe_probefail (self, "Async interrupt test");
- udelay (100);
- i++;
- }
- toshoboe_dumprx (self,i);
-
- self->async = 0;
- self->speed = 9600;
- toshoboe_setbaud (self);
- toshoboe_stopchip (self);
-
- free_irq (self->io.irq, (void *) self);
-
- printk (KERN_WARNING DRIVER_NAME ": Self test passed ok\n");
-
- return 1;
-}
-#endif
-
-/******************************************************************/
-/* Netdev style code */
-
-/* Transmit something */
-static netdev_tx_t
-toshoboe_hard_xmit (struct sk_buff *skb, struct net_device *dev)
-{
- struct toshoboe_cb *self;
- __s32 speed;
- int mtt, len, ctl;
- unsigned long flags;
- struct irda_skb_cb *cb = (struct irda_skb_cb *) skb->cb;
-
- self = netdev_priv(dev);
-
- IRDA_ASSERT (self != NULL, return NETDEV_TX_OK; );
-
- pr_debug("%s.tx:%x(%x)%x\n",
- __func__, skb->len, self->txpending, INB(OBOE_ENABLEH));
- if (!cb->magic) {
- pr_debug("%s.Not IrLAP:%x\n", __func__, cb->magic);
-#ifdef DUMP_PACKETS
- _dumpbufs(skb->data,skb->len,'>');
-#endif
- }
-
- /* change speed pending, wait for its execution */
- if (self->new_speed)
- return NETDEV_TX_BUSY;
-
- /* device stopped (apm) wait for restart */
- if (self->stopped)
- return NETDEV_TX_BUSY;
-
- toshoboe_checkstuck (self);
-
- /* Check if we need to change the speed */
- /* But not now. Wait after transmission if mtt not required */
- speed=irda_get_next_speed(skb);
- if ((speed != self->io.speed) && (speed != -1))
- {
- spin_lock_irqsave(&self->spinlock, flags);
-
- if (self->txpending || skb->len)
- {
- self->new_speed = speed;
- pr_debug("%s: Queued TxDone scheduled speed change %d\n" ,
- __func__, speed);
- /* if no data, that's all! */
- if (!skb->len)
- {
- spin_unlock_irqrestore(&self->spinlock, flags);
- dev_kfree_skb (skb);
- return NETDEV_TX_OK;
- }
- /* True packet, go on, but */
- /* do not accept anything before change speed execution */
- netif_stop_queue(dev);
- /* ready to process TxDone interrupt */
- spin_unlock_irqrestore(&self->spinlock, flags);
- }
- else
- {
- /* idle and no data, change speed now */
- self->speed = speed;
- toshoboe_setbaud (self);
- spin_unlock_irqrestore(&self->spinlock, flags);
- dev_kfree_skb (skb);
- return NETDEV_TX_OK;
- }
-
- }
-
- if ((mtt = irda_get_mtt(skb)))
- {
- /* This is fair since the queue should be empty anyway */
- spin_lock_irqsave(&self->spinlock, flags);
-
- if (self->txpending)
- {
- spin_unlock_irqrestore(&self->spinlock, flags);
- return NETDEV_TX_BUSY;
- }
-
- /* If in SIR mode we need to generate a string of XBOFs */
- /* In MIR and FIR we need to generate a string of data */
- /* which we will add a wrong checksum to */
-
- mtt = toshoboe_makemttpacket (self, self->tx_bufs[self->txs], mtt);
- pr_debug("%s.mtt:%x(%x)%d\n", __func__, skb->len, mtt, self->txpending);
- if (mtt)
- {
- self->ring->tx[self->txs].len = mtt & 0xfff;
-
- ctl = OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX;
- if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_FIRON)
- {
- ctl |= OBOE_CTL_TX_BAD_CRC | OBOE_CTL_TX_SIP ;
- }
-#ifdef USE_MIR
- else if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_MIRON)
- {
- ctl |= OBOE_CTL_TX_BAD_CRC;
- }
-#endif
- self->ring->tx[self->txs].control = ctl;
-
- OUTB (0x0, OBOE_ENABLEH);
- /* It is only a timer. Do not send mtt packet outside! */
- toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX | OBOE_CONFIG0H_LOOP);
-
- self->txpending++;
-
- self->txs++;
- self->txs %= TX_SLOTS;
-
- }
- else
- {
- printk(KERN_ERR DRIVER_NAME ": problem with mtt packet - ignored\n");
- }
- spin_unlock_irqrestore(&self->spinlock, flags);
- }
-
-#ifdef DUMP_PACKETS
-dumpbufs(skb->data,skb->len,'>');
-#endif
-
- spin_lock_irqsave(&self->spinlock, flags);
-
- if (self->ring->tx[self->txs].control & OBOE_CTL_TX_HW_OWNS)
- {
- pr_debug("%s.ful:%x(%x)%x\n",
- __func__, skb->len, self->ring->tx[self->txs].control,
- self->txpending);
- toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX);
- spin_unlock_irqrestore(&self->spinlock, flags);
- return NETDEV_TX_BUSY;
- }
-
- if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_SIRON)
- {
- len = async_wrap_skb (skb, self->tx_bufs[self->txs], TX_BUF_SZ);
- }
- else
- {
- len = skb->len;
- skb_copy_from_linear_data(skb, self->tx_bufs[self->txs], len);
- }
- self->ring->tx[self->txs].len = len & 0x0fff;
-
- /*Sometimes the HW doesn't see us assert RTCENTX in the interrupt code */
- /*later this plays safe, we garuntee the last packet to be transmitted */
- /*has RTCENTX set */
-
- ctl = OBOE_CTL_TX_HW_OWNS | OBOE_CTL_TX_RTCENTX;
- if (INB (OBOE_ENABLEH) & OBOE_ENABLEH_FIRON)
- {
- ctl |= OBOE_CTL_TX_SIP ;
- }
- self->ring->tx[self->txs].control = ctl;
-
- /* If transmitter is idle start in one-shot mode */
-
- if (!self->txpending)
- toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX);
-
- self->txpending++;
-
- self->txs++;
- self->txs %= TX_SLOTS;
-
- spin_unlock_irqrestore(&self->spinlock, flags);
- dev_kfree_skb (skb);
-
- return NETDEV_TX_OK;
-}
-
-/*interrupt handler */
-static irqreturn_t
-toshoboe_interrupt (int irq, void *dev_id)
-{
- struct toshoboe_cb *self = dev_id;
- __u8 irqstat;
- struct sk_buff *skb = NULL;
-
- irqstat = INB (OBOE_ISR);
-
-/* was it us */
- if (!(irqstat & OBOE_INT_MASK))
- return IRQ_NONE;
-
-/* Ack all the interrupts */
- OUTB (irqstat, OBOE_ISR);
-
- toshoboe_isntstuck (self);
-
-/* Txdone */
- if (irqstat & OBOE_INT_TXDONE)
- {
- int txp, txpc;
- int i;
-
- txp = self->txpending;
- self->txpending = 0;
-
- for (i = 0; i < TX_SLOTS; ++i)
- {
- if (self->ring->tx[i].control & OBOE_CTL_TX_HW_OWNS)
- self->txpending++;
- }
- pr_debug("%s.txd(%x)%x/%x\n", __func__, irqstat, txp, self->txpending);
-
- txp = INB (OBOE_TXSLOT) & OBOE_SLOT_MASK;
-
- /* Got anything queued ? start it together */
- if (self->ring->tx[txp].control & OBOE_CTL_TX_HW_OWNS)
- {
- txpc = txp;
-#ifdef OPTIMIZE_TX
- while (self->ring->tx[txpc].control & OBOE_CTL_TX_HW_OWNS)
- {
- txp = txpc;
- txpc++;
- txpc %= TX_SLOTS;
- self->netdev->stats.tx_packets++;
- if (self->ring->tx[txpc].control & OBOE_CTL_TX_HW_OWNS)
- self->ring->tx[txp].control &= ~OBOE_CTL_TX_RTCENTX;
- }
- self->netdev->stats.tx_packets--;
-#else
- self->netdev->stats.tx_packets++;
-#endif
- toshoboe_start_DMA(self, OBOE_CONFIG0H_ENTX);
- }
-
- if ((!self->txpending) && (self->new_speed))
- {
- self->speed = self->new_speed;
- pr_debug("%s: Executed TxDone scheduled speed change %d\n",
- __func__, self->speed);
- toshoboe_setbaud (self);
- }
-
- /* Tell network layer that we want more frames */
- if (!self->new_speed)
- netif_wake_queue(self->netdev);
- }
-
- if (irqstat & OBOE_INT_RXDONE)
- {
- while (!(self->ring->rx[self->rxs].control & OBOE_CTL_RX_HW_OWNS))
- {
- int len = self->ring->rx[self->rxs].len;
- skb = NULL;
- pr_debug("%s.rcv:%x(%x)\n", __func__
- , len, self->ring->rx[self->rxs].control);
-
-#ifdef DUMP_PACKETS
-dumpbufs(self->rx_bufs[self->rxs],len,'<');
-#endif
-
- if (self->ring->rx[self->rxs].control == 0)
- {
- __u8 enable = INB (OBOE_ENABLEH);
-
- /* In SIR mode we need to check the CRC as this */
- /* hasn't been done by the hardware */
- if (enable & OBOE_ENABLEH_SIRON)
- {
- if (!toshoboe_checkfcs (self->rx_bufs[self->rxs], len))
- len = 0;
- /*Trim off the CRC */
- if (len > 1)
- len -= 2;
- else
- len = 0;
- pr_debug("%s.SIR:%x(%x)\n", __func__, len, enable);
- }
-
-#ifdef USE_MIR
- else if (enable & OBOE_ENABLEH_MIRON)
- {
- if (len > 1)
- len -= 2;
- else
- len = 0;
- pr_debug("%s.MIR:%x(%x)\n", __func__, len, enable);
- }
-#endif
- else if (enable & OBOE_ENABLEH_FIRON)
- {
- if (len > 3)
- len -= 4; /*FIXME: check this */
- else
- len = 0;
- pr_debug("%s.FIR:%x(%x)\n", __func__, len, enable);
- }
- else
- pr_debug("%s.?IR:%x(%x)\n", __func__, len, enable);
-
- if (len)
- {
- skb = dev_alloc_skb (len + 1);
- if (skb)
- {
- skb_reserve (skb, 1);
-
- skb_put (skb, len);
- skb_copy_to_linear_data(skb, self->rx_bufs[self->rxs],
- len);
- self->netdev->stats.rx_packets++;
- skb->dev = self->netdev;
- skb_reset_mac_header(skb);
- skb->protocol = htons (ETH_P_IRDA);
- }
- else
- {
- printk (KERN_INFO
- "%s(), memory squeeze, dropping frame.\n",
- __func__);
- }
- }
- }
- else
- {
- /* TODO: =========================================== */
- /* if OBOE_CTL_RX_LENGTH, our buffers are too small */
- /* (MIR or FIR) data is lost. */
- /* (SIR) data is splitted in several slots. */
- /* we have to join all the received buffers received */
- /*in a large buffer before checking CRC. */
- pr_debug("%s.err:%x(%x)\n", __func__
- , len, self->ring->rx[self->rxs].control);
- }
-
- self->ring->rx[self->rxs].len = 0x0;
- self->ring->rx[self->rxs].control = OBOE_CTL_RX_HW_OWNS;
-
- self->rxs++;
- self->rxs %= RX_SLOTS;
-
- if (skb)
- netif_rx (skb);
-
- }
- }
-
- if (irqstat & OBOE_INT_TXUNDER)
- {
- printk (KERN_WARNING DRIVER_NAME ": tx fifo underflow\n");
- }
- if (irqstat & OBOE_INT_RXOVER)
- {
- printk (KERN_WARNING DRIVER_NAME ": rx fifo overflow\n");
- }
-/* This must be useful for something... */
- if (irqstat & OBOE_INT_SIP)
- {
- self->int_sip++;
- pr_debug("%s.sip:%x(%x)%x\n",
- __func__, self->int_sip, irqstat, self->txpending);
- }
- return IRQ_HANDLED;
-}
-
-
-static int
-toshoboe_net_open (struct net_device *dev)
-{
- struct toshoboe_cb *self;
- unsigned long flags;
- int rc;
-
- self = netdev_priv(dev);
-
- if (self->async)
- return -EBUSY;
-
- if (self->stopped)
- return 0;
-
- rc = request_irq (self->io.irq, toshoboe_interrupt,
- IRQF_SHARED, dev->name, self);
- if (rc)
- return rc;
-
- spin_lock_irqsave(&self->spinlock, flags);
- toshoboe_startchip (self);
- spin_unlock_irqrestore(&self->spinlock, flags);
-
- /* Ready to play! */
- netif_start_queue(dev);
-
- /*
- * Open new IrLAP layer instance, now that everything should be
- * initialized properly
- */
- self->irlap = irlap_open (dev, &self->qos, driver_name);
-
- self->irdad = 1;
-
- return 0;
-}
-
-static int
-toshoboe_net_close (struct net_device *dev)
-{
- struct toshoboe_cb *self;
-
- IRDA_ASSERT (dev != NULL, return -1; );
- self = netdev_priv(dev);
-
- /* Stop device */
- netif_stop_queue(dev);
-
- /* Stop and remove instance of IrLAP */
- if (self->irlap)
- irlap_close (self->irlap);
- self->irlap = NULL;
-
- self->irdad = 0;
-
- free_irq (self->io.irq, (void *) self);
-
- if (!self->stopped)
- {
- toshoboe_stopchip (self);
- }
-
- return 0;
-}
-
-/*
- * Function toshoboe_net_ioctl (dev, rq, cmd)
- *
- * Process IOCTL commands for this device
- *
- */
-static int
-toshoboe_net_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct if_irda_req *irq = (struct if_irda_req *) rq;
- struct toshoboe_cb *self;
- unsigned long flags;
- int ret = 0;
-
- IRDA_ASSERT (dev != NULL, return -1; );
-
- self = netdev_priv(dev);
-
- IRDA_ASSERT (self != NULL, return -1; );
-
- pr_debug("%s(), %s, (cmd=0x%X)\n", __func__, dev->name, cmd);
-
- /* Disable interrupts & save flags */
- spin_lock_irqsave(&self->spinlock, flags);
-
- switch (cmd)
- {
- case SIOCSBANDWIDTH: /* Set bandwidth */
- /* This function will also be used by IrLAP to change the
- * speed, so we still must allow for speed change within
- * interrupt context.
- */
- pr_debug("%s(BANDWIDTH), %s, (%X/%ld\n",
- __func__, dev->name, INB(OBOE_STATUS), irq->ifr_baudrate);
- if (!in_interrupt () && !capable (CAP_NET_ADMIN)) {
- ret = -EPERM;
- goto out;
- }
-
- /* self->speed=irq->ifr_baudrate; */
- /* toshoboe_setbaud(self); */
- /* Just change speed once - inserted by Paul Bristow */
- self->new_speed = irq->ifr_baudrate;
- break;
- case SIOCSMEDIABUSY: /* Set media busy */
- pr_debug("%s(MEDIABUSY), %s, (%X/%x)\n",
- __func__, dev->name,
- INB(OBOE_STATUS), capable(CAP_NET_ADMIN));
- if (!capable (CAP_NET_ADMIN)) {
- ret = -EPERM;
- goto out;
- }
- irda_device_set_media_busy (self->netdev, TRUE);
- break;
- case SIOCGRECEIVING: /* Check if we are receiving right now */
- irq->ifr_receiving = (INB (OBOE_STATUS) & OBOE_STATUS_RXBUSY) ? 1 : 0;
- pr_debug("%s(RECEIVING), %s, (%X/%x)\n",
- __func__, dev->name, INB(OBOE_STATUS), irq->ifr_receiving);
- break;
- default:
- pr_debug("%s(?), %s, (cmd=0x%X)\n", __func__, dev->name, cmd);
- ret = -EOPNOTSUPP;
- }
-out:
- spin_unlock_irqrestore(&self->spinlock, flags);
- return ret;
-
-}
-
-MODULE_DESCRIPTION("Toshiba OBOE IrDA Device Driver");
-MODULE_AUTHOR("James McKenzie <james@fishsoup.dhs.org>");
-MODULE_LICENSE("GPL");
-
-module_param (max_baud, int, 0);
-MODULE_PARM_DESC(max_baud, "Maximum baud rate");
-
-#ifdef USE_PROBE
-module_param (do_probe, bool, 0);
-MODULE_PARM_DESC(do_probe, "Enable/disable chip probing and self-test");
-#endif
-
-static void
-toshoboe_close (struct pci_dev *pci_dev)
-{
- int i;
- struct toshoboe_cb *self = pci_get_drvdata(pci_dev);
-
- IRDA_ASSERT (self != NULL, return; );
-
- if (!self->stopped)
- {
- toshoboe_stopchip (self);
- }
-
- release_region (self->io.fir_base, self->io.fir_ext);
-
- for (i = 0; i < TX_SLOTS; ++i)
- {
- kfree (self->tx_bufs[i]);
- self->tx_bufs[i] = NULL;
- }
-
- for (i = 0; i < RX_SLOTS; ++i)
- {
- kfree (self->rx_bufs[i]);
- self->rx_bufs[i] = NULL;
- }
-
- unregister_netdev(self->netdev);
-
- kfree (self->ringbuf);
- self->ringbuf = NULL;
- self->ring = NULL;
-
- free_netdev(self->netdev);
-}
-
-static const struct net_device_ops toshoboe_netdev_ops = {
- .ndo_open = toshoboe_net_open,
- .ndo_stop = toshoboe_net_close,
- .ndo_start_xmit = toshoboe_hard_xmit,
- .ndo_do_ioctl = toshoboe_net_ioctl,
-};
-
-static int
-toshoboe_open (struct pci_dev *pci_dev, const struct pci_device_id *pdid)
-{
- struct toshoboe_cb *self;
- struct net_device *dev;
- int i = 0;
- int ok = 0;
- int err;
-
- if ((err=pci_enable_device(pci_dev)))
- return err;
-
- dev = alloc_irdadev(sizeof (struct toshoboe_cb));
- if (dev == NULL)
- {
- printk (KERN_ERR DRIVER_NAME ": can't allocate memory for "
- "IrDA control block\n");
- return -ENOMEM;
- }
-
- self = netdev_priv(dev);
- self->netdev = dev;
- self->pdev = pci_dev;
- self->base = pci_resource_start(pci_dev,0);
-
- self->io.fir_base = self->base;
- self->io.fir_ext = OBOE_IO_EXTENT;
- self->io.irq = pci_dev->irq;
- self->io.irqflags = IRQF_SHARED;
-
- self->speed = self->io.speed = 9600;
- self->async = 0;
-
- /* Lock the port that we need */
- if (NULL==request_region (self->io.fir_base, self->io.fir_ext, driver_name))
- {
- printk (KERN_ERR DRIVER_NAME ": can't get iobase of 0x%03x\n"
- ,self->io.fir_base);
- err = -EBUSY;
- goto freeself;
- }
-
- spin_lock_init(&self->spinlock);
-
- irda_init_max_qos_capabilies (&self->qos);
- self->qos.baud_rate.bits = 0;
-
- if (max_baud >= 2400)
- self->qos.baud_rate.bits |= IR_2400;
- /*if (max_baud>=4800) idev->qos.baud_rate.bits|=IR_4800; */
- if (max_baud >= 9600)
- self->qos.baud_rate.bits |= IR_9600;
- if (max_baud >= 19200)
- self->qos.baud_rate.bits |= IR_19200;
- if (max_baud >= 115200)
- self->qos.baud_rate.bits |= IR_115200;
-#ifdef USE_MIR
- if (max_baud >= 1152000)
- {
- self->qos.baud_rate.bits |= IR_1152000;
- }
-#endif
- if (max_baud >= 4000000)
- {
- self->qos.baud_rate.bits |= (IR_4000000 << 8);
- }
-
- /*FIXME: work this out... */
- self->qos.min_turn_time.bits = 0xff;
-
- irda_qos_bits_to_value (&self->qos);
-
- /* Allocate twice the size to guarantee alignment */
- self->ringbuf = kmalloc(OBOE_RING_LEN << 1, GFP_KERNEL);
- if (!self->ringbuf)
- {
- err = -ENOMEM;
- goto freeregion;
- }
-
-#if (BITS_PER_LONG == 64)
-#error broken on 64-bit: casts pointer to 32-bit, and then back to pointer.
-#endif
-
- /*We need to align the taskfile on a taskfile size boundary */
- {
- unsigned long addr;
-
- addr = (__u32) self->ringbuf;
- addr &= ~(OBOE_RING_LEN - 1);
- addr += OBOE_RING_LEN;
- self->ring = (struct OboeRing *) addr;
- }
-
- memset (self->ring, 0, OBOE_RING_LEN);
- self->io.mem_base = (__u32) self->ring;
-
- ok = 1;
- for (i = 0; i < TX_SLOTS; ++i)
- {
- self->tx_bufs[i] = kmalloc (TX_BUF_SZ, GFP_KERNEL);
- if (!self->tx_bufs[i])
- ok = 0;
- }
-
- for (i = 0; i < RX_SLOTS; ++i)
- {
- self->rx_bufs[i] = kmalloc (RX_BUF_SZ, GFP_KERNEL);
- if (!self->rx_bufs[i])
- ok = 0;
- }
-
- if (!ok)
- {
- err = -ENOMEM;
- goto freebufs;
- }
-
-
-#ifdef USE_PROBE
- if (do_probe)
- if (!toshoboe_probe (self))
- {
- err = -ENODEV;
- goto freebufs;
- }
-#endif
-
- SET_NETDEV_DEV(dev, &pci_dev->dev);
- dev->netdev_ops = &toshoboe_netdev_ops;
-
- err = register_netdev(dev);
- if (err)
- {
- printk (KERN_ERR DRIVER_NAME ": register_netdev() failed\n");
- err = -ENOMEM;
- goto freebufs;
- }
- printk (KERN_INFO "IrDA: Registered device %s\n", dev->name);
-
- pci_set_drvdata(pci_dev,self);
-
- printk (KERN_INFO DRIVER_NAME ": Using multiple tasks\n");
-
- return 0;
-
-freebufs:
- for (i = 0; i < TX_SLOTS; ++i)
- kfree (self->tx_bufs[i]);
- for (i = 0; i < RX_SLOTS; ++i)
- kfree (self->rx_bufs[i]);
- kfree(self->ringbuf);
-
-freeregion:
- release_region (self->io.fir_base, self->io.fir_ext);
-
-freeself:
- free_netdev(dev);
-
- return err;
-}
-
-static int
-toshoboe_gotosleep (struct pci_dev *pci_dev, pm_message_t crap)
-{
- struct toshoboe_cb *self = pci_get_drvdata(pci_dev);
- unsigned long flags;
- int i = 10;
-
- if (!self || self->stopped)
- return 0;
-
- if ((!self->irdad) && (!self->async))
- return 0;
-
-/* Flush all packets */
- while ((i--) && (self->txpending))
- msleep(10);
-
- spin_lock_irqsave(&self->spinlock, flags);
-
- toshoboe_stopchip (self);
- self->stopped = 1;
- self->txpending = 0;
-
- spin_unlock_irqrestore(&self->spinlock, flags);
- return 0;
-}
-
-static int
-toshoboe_wakeup (struct pci_dev *pci_dev)
-{
- struct toshoboe_cb *self = pci_get_drvdata(pci_dev);
- unsigned long flags;
-
- if (!self || !self->stopped)
- return 0;
-
- if ((!self->irdad) && (!self->async))
- return 0;
-
- spin_lock_irqsave(&self->spinlock, flags);
-
- toshoboe_startchip (self);
- self->stopped = 0;
-
- netif_wake_queue(self->netdev);
- spin_unlock_irqrestore(&self->spinlock, flags);
- return 0;
-}
-
-static struct pci_driver donauboe_pci_driver = {
- .name = "donauboe",
- .id_table = toshoboe_pci_tbl,
- .probe = toshoboe_open,
- .remove = toshoboe_close,
- .suspend = toshoboe_gotosleep,
- .resume = toshoboe_wakeup
-};
-
-module_pci_driver(donauboe_pci_driver);