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SubjectRe: [PATCH 3/6] m68k: mac - Add SWIM floppy support
On Wed, Mar 25 2009, Geert Uytterhoeven wrote:
> Hi Jens,
>
> Is this OK for you to go in through the m68k tree?

Sure!

>
> Thanks!
>
> On Sun, Mar 1, 2009 at 10:21, Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > From: Laurent Vivier <laurent@lvivier.info>
> >
> > It allows to read data from a floppy, but not to write to, and to eject the
> > floppy (useful on our Mac without eject button).
> >
> > Signed-off-by: Laurent Vivier <Laurent@lvivier.info>
> > Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> > Cc: Jens Axboe <axboe@kernel.dk>
> > ---
> >  arch/m68k/mac/config.c   |   44 ++
> >  arch/m68k/mac/via.c      |    9 +
> >  drivers/block/Kconfig    |    7 +
> >  drivers/block/Makefile   |    3 +
> >  drivers/block/swim.c     |  995 ++++++++++++++++++++++++++++++++++++++++++++++
> >  drivers/block/swim_asm.S |  247 ++++++++++++
> >  6 files changed, 1305 insertions(+), 0 deletions(-)
> >  create mode 100644 drivers/block/swim.c
> >  create mode 100644 drivers/block/swim_asm.S
> >
> > diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
> > index 3a1c0b2..be01798 100644
> > --- a/arch/m68k/mac/config.c
> > +++ b/arch/m68k/mac/config.c
> > @@ -22,6 +22,7 @@
> >  /* keyb */
> >  #include <linux/init.h>
> >  #include <linux/vt_kern.h>
> > +#include <linux/platform_device.h>
> >
> >  #define BOOTINFO_COMPAT_1_0
> >  #include <asm/setup.h>
> > @@ -43,6 +44,10 @@
> >  #include <asm/mac_oss.h>
> >  #include <asm/mac_psc.h>
> >
> > +/* platform device info */
> > +
> > +#define SWIM_IO_SIZE 0x2000    /* SWIM IO resource size */
> > +
> >  /* Mac bootinfo struct */
> >
> >  struct mac_booter_data mac_bi_data;
> > @@ -870,3 +875,42 @@ static void mac_get_model(char *str)
> >        strcpy(str, "Macintosh ");
> >        strcat(str, macintosh_config->name);
> >  }
> > +
> > +static struct resource swim_resources[1];
> > +
> > +static struct platform_device swim_device = {
> > +       .name           = "swim",
> > +       .id             = -1,
> > +       .num_resources  = ARRAY_SIZE(swim_resources),
> > +       .resource       = swim_resources,
> > +};
> > +
> > +static struct platform_device *mac_platform_devices[] __initdata = {
> > +       &swim_device
> > +};
> > +
> > +int __init mac_platform_init(void)
> > +{
> > +       u8 *swim_base;
> > +
> > +       switch (macintosh_config->floppy_type) {
> > +       case MAC_FLOPPY_SWIM_ADDR1:
> > +               swim_base = (u8 *)(VIA1_BASE + 0x1E000);
> > +               break;
> > +       case MAC_FLOPPY_SWIM_ADDR2:
> > +               swim_base = (u8 *)(VIA1_BASE + 0x16000);
> > +               break;
> > +       default:
> > +               return 0;
> > +       }
> > +
> > +       swim_resources[0].name = "swim-regs";
> > +       swim_resources[0].start = (resource_size_t)swim_base;
> > +       swim_resources[0].end = (resource_size_t)(swim_base + SWIM_IO_SIZE);
> > +       swim_resources[0].flags = IORESOURCE_MEM;
> > +
> > +       return platform_add_devices(mac_platform_devices,
> > +                                   ARRAY_SIZE(mac_platform_devices));
> > +}
> > +
> > +arch_initcall(mac_platform_init);
> > diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
> > index 7d97ba5..11bce3c 100644
> > --- a/arch/m68k/mac/via.c
> > +++ b/arch/m68k/mac/via.c
> > @@ -645,3 +645,12 @@ int via_irq_pending(int irq)
> >        }
> >        return 0;
> >  }
> > +
> > +void via1_set_head(int head)
> > +{
> > +       if (head == 0)
> > +               via1[vBufA] &= ~VIA1A_vHeadSel;
> > +       else
> > +               via1[vBufA] |= VIA1A_vHeadSel;
> > +}
> > +EXPORT_SYMBOL(via1_set_head);
> > diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
> > index 0344a8a..e7b8aa0 100644
> > --- a/drivers/block/Kconfig
> > +++ b/drivers/block/Kconfig
> > @@ -45,6 +45,13 @@ config MAC_FLOPPY
> >          If you have a SWIM-3 (Super Woz Integrated Machine 3; from Apple)
> >          floppy controller, say Y here. Most commonly found in PowerMacs.
> >
> > +config BLK_DEV_SWIM
> > +       tristate "Support for SWIM Macintosh floppy"
> > +       depends on M68K && MAC
> > +       help
> > +         You should select this option if you want floppy support
> > +         and you don't have a II, IIfx, Q900, Q950 or AV series.
> > +
> >  config AMIGA_Z2RAM
> >        tristate "Amiga Zorro II ramdisk support"
> >        depends on ZORRO
> > diff --git a/drivers/block/Makefile b/drivers/block/Makefile
> > index 204332b..b32b7f9 100644
> > --- a/drivers/block/Makefile
> > +++ b/drivers/block/Makefile
> > @@ -6,6 +6,7 @@
> >  #
> >
> >  obj-$(CONFIG_MAC_FLOPPY)       += swim3.o
> > +obj-$(CONFIG_BLK_DEV_SWIM)     += swim_mod.o
> >  obj-$(CONFIG_BLK_DEV_FD)       += floppy.o
> >  obj-$(CONFIG_AMIGA_FLOPPY)     += amiflop.o
> >  obj-$(CONFIG_PS3_DISK)         += ps3disk.o
> > @@ -32,3 +33,5 @@ obj-$(CONFIG_BLK_DEV_UB)      += ub.o
> >  obj-$(CONFIG_BLK_DEV_HD)       += hd.o
> >
> >  obj-$(CONFIG_XEN_BLKDEV_FRONTEND)      += xen-blkfront.o
> > +
> > +swim_mod-objs  := swim.o swim_asm.o
> > diff --git a/drivers/block/swim.c b/drivers/block/swim.c
> > new file mode 100644
> > index 0000000..d22cc38
> > --- /dev/null
> > +++ b/drivers/block/swim.c
> > @@ -0,0 +1,995 @@
> > +/*
> > + * Driver for SWIM (Sander Woz Integrated Machine) floppy controller
> > + *
> > + * Copyright (C) 2004,2008 Laurent Vivier <Laurent@lvivier.info>
> > + *
> > + * based on Alastair Bridgewater SWIM analysis, 2001
> > + * based on SWIM3 driver (c) Paul Mackerras, 1996
> > + * based on netBSD IWM driver (c) 1997, 1998 Hauke Fath.
> > + *
> > + * 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.
> > + *
> > + * 2004-08-21 (lv) - Initial implementation
> > + * 2008-10-30 (lv) - Port to 2.6
> > + */
> > +
> > +#include <linux/module.h>
> > +#include <linux/fd.h>
> > +#include <linux/blkdev.h>
> > +#include <linux/hdreg.h>
> > +#include <linux/kernel.h>
> > +#include <linux/delay.h>
> > +#include <linux/platform_device.h>
> > +
> > +#include <asm/macintosh.h>
> > +#include <asm/mac_via.h>
> > +
> > +#define CARDNAME "swim"
> > +
> > +struct sector_header {
> > +       unsigned char side;
> > +       unsigned char track;
> > +       unsigned char sector;
> > +       unsigned char size;
> > +       unsigned char crc0;
> > +       unsigned char crc1;
> > +} __attribute__((packed));
> > +
> > +#define DRIVER_VERSION "Version 0.2 (2008-10-30)"
> > +
> > +#define REG(x) unsigned char x, x ## _pad[0x200 - 1];
> > +
> > +struct swim {
> > +       REG(write_data)
> > +       REG(write_mark)
> > +       REG(write_CRC)
> > +       REG(write_parameter)
> > +       REG(write_phase)
> > +       REG(write_setup)
> > +       REG(write_mode0)
> > +       REG(write_mode1)
> > +
> > +       REG(read_data)
> > +       REG(read_mark)
> > +       REG(read_error)
> > +       REG(read_parameter)
> > +       REG(read_phase)
> > +       REG(read_setup)
> > +       REG(read_status)
> > +       REG(read_handshake)
> > +} __attribute__((packed));
> > +
> > +#define swim_write(base, reg, v)       out_8(&(base)->write_##reg, (v))
> > +#define swim_read(base, reg)           in_8(&(base)->read_##reg)
> > +
> > +/* IWM registers */
> > +
> > +struct iwm {
> > +       REG(ph0L)
> > +       REG(ph0H)
> > +       REG(ph1L)
> > +       REG(ph1H)
> > +       REG(ph2L)
> > +       REG(ph2H)
> > +       REG(ph3L)
> > +       REG(ph3H)
> > +       REG(mtrOff)
> > +       REG(mtrOn)
> > +       REG(intDrive)
> > +       REG(extDrive)
> > +       REG(q6L)
> > +       REG(q6H)
> > +       REG(q7L)
> > +       REG(q7H)
> > +} __attribute__((packed));
> > +
> > +#define iwm_write(base, reg, v)        out_8(&(base)->reg, (v))
> > +#define iwm_read(base, reg)            in_8(&(base)->reg)
> > +
> > +/* bits in phase register */
> > +
> > +#define SEEK_POSITIVE  0x070
> > +#define SEEK_NEGATIVE  0x074
> > +#define STEP           0x071
> > +#define MOTOR_ON       0x072
> > +#define MOTOR_OFF      0x076
> > +#define INDEX          0x073
> > +#define EJECT          0x077
> > +#define SETMFM         0x171
> > +#define SETGCR         0x175
> > +
> > +#define RELAX          0x033
> > +#define LSTRB          0x008
> > +
> > +#define CA_MASK                0x077
> > +
> > +/* Select values for swim_select and swim_readbit */
> > +
> > +#define READ_DATA_0    0x074
> > +#define TWOMEG_DRIVE   0x075
> > +#define SINGLE_SIDED   0x076
> > +#define DRIVE_PRESENT  0x077
> > +#define DISK_IN                0x170
> > +#define WRITE_PROT     0x171
> > +#define TRACK_ZERO     0x172
> > +#define TACHO          0x173
> > +#define READ_DATA_1    0x174
> > +#define MFM_MODE       0x175
> > +#define SEEK_COMPLETE  0x176
> > +#define ONEMEG_MEDIA   0x177
> > +
> > +/* Bits in handshake register */
> > +
> > +#define MARK_BYTE      0x01
> > +#define CRC_ZERO       0x02
> > +#define RDDATA         0x04
> > +#define SENSE          0x08
> > +#define MOTEN          0x10
> > +#define ERROR          0x20
> > +#define DAT2BYTE       0x40
> > +#define DAT1BYTE       0x80
> > +
> > +/* bits in setup register */
> > +
> > +#define S_INV_WDATA    0x01
> > +#define S_3_5_SELECT   0x02
> > +#define S_GCR          0x04
> > +#define S_FCLK_DIV2    0x08
> > +#define S_ERROR_CORR   0x10
> > +#define S_IBM_DRIVE    0x20
> > +#define S_GCR_WRITE    0x40
> > +#define S_TIMEOUT      0x80
> > +
> > +/* bits in mode register */
> > +
> > +#define CLFIFO         0x01
> > +#define ENBL1          0x02
> > +#define ENBL2          0x04
> > +#define ACTION         0x08
> > +#define WRITE_MODE     0x10
> > +#define HEDSEL         0x20
> > +#define MOTON          0x80
> > +
> > +/*----------------------------------------------------------------------------*/
> > +
> > +enum drive_location {
> > +       INTERNAL_DRIVE = 0x02,
> > +       EXTERNAL_DRIVE = 0x04,
> > +};
> > +
> > +enum media_type {
> > +       DD_MEDIA,
> > +       HD_MEDIA,
> > +};
> > +
> > +struct floppy_state {
> > +
> > +       /* physical properties */
> > +
> > +       enum drive_location location;   /* internal or external drive */
> > +       int              head_number;   /* single- or double-sided drive */
> > +
> > +       /* media */
> > +
> > +       int              disk_in;
> > +       int              ejected;
> > +       enum media_type  type;
> > +       int              write_protected;
> > +
> > +       int              total_secs;
> > +       int              secpercyl;
> > +       int              secpertrack;
> > +
> > +       /* in-use information */
> > +
> > +       int             track;
> > +       int             ref_count;
> > +
> > +       struct gendisk *disk;
> > +
> > +       /* parent controller */
> > +
> > +       struct swim_priv *swd;
> > +};
> > +
> > +enum motor_action {
> > +       OFF,
> > +       ON,
> > +};
> > +
> > +enum head {
> > +       LOWER_HEAD = 0,
> > +       UPPER_HEAD = 1,
> > +};
> > +
> > +#define FD_MAX_UNIT    2
> > +
> > +struct swim_priv {
> > +       struct swim __iomem *base;
> > +       spinlock_t lock;
> > +       struct request_queue *queue;
> > +       int floppy_count;
> > +       struct floppy_state unit[FD_MAX_UNIT];
> > +};
> > +
> > +extern int swim_read_sector_header(struct swim __iomem *base,
> > +                                  struct sector_header *header);
> > +extern int swim_read_sector_data(struct swim __iomem *base,
> > +                                unsigned char *data);
> > +
> > +static inline void set_swim_mode(struct swim __iomem *base, int enable)
> > +{
> > +       struct iwm __iomem *iwm_base;
> > +       unsigned long flags;
> > +
> > +       if (!enable) {
> > +               swim_write(base, mode0, 0xf8);
> > +               return;
> > +       }
> > +
> > +       iwm_base = (struct iwm __iomem *)base;
> > +       local_irq_save(flags);
> > +
> > +       iwm_read(iwm_base, q7L);
> > +       iwm_read(iwm_base, mtrOff);
> > +       iwm_read(iwm_base, q6H);
> > +
> > +       iwm_write(iwm_base, q7H, 0x57);
> > +       iwm_write(iwm_base, q7H, 0x17);
> > +       iwm_write(iwm_base, q7H, 0x57);
> > +       iwm_write(iwm_base, q7H, 0x57);
> > +
> > +       local_irq_restore(flags);
> > +}
> > +
> > +static inline int get_swim_mode(struct swim __iomem *base)
> > +{
> > +       unsigned long flags;
> > +
> > +       local_irq_save(flags);
> > +
> > +       swim_write(base, phase, 0xf5);
> > +       if (swim_read(base, phase) != 0xf5)
> > +               goto is_iwm;
> > +       swim_write(base, phase, 0xf6);
> > +       if (swim_read(base, phase) != 0xf6)
> > +               goto is_iwm;
> > +       swim_write(base, phase, 0xf7);
> > +       if (swim_read(base, phase) != 0xf7)
> > +               goto is_iwm;
> > +       local_irq_restore(flags);
> > +       return 1;
> > +is_iwm:
> > +       local_irq_restore(flags);
> > +       return 0;
> > +}
> > +
> > +static inline void swim_select(struct swim __iomem *base, int sel)
> > +{
> > +       swim_write(base, phase, RELAX);
> > +
> > +       via1_set_head(sel & 0x100);
> > +
> > +       swim_write(base, phase, sel & CA_MASK);
> > +}
> > +
> > +static inline void swim_action(struct swim __iomem *base, int action)
> > +{
> > +       unsigned long flags;
> > +
> > +       local_irq_save(flags);
> > +
> > +       swim_select(base, action);
> > +       udelay(1);
> > +       swim_write(base, phase, (LSTRB<<4) | LSTRB);
> > +       udelay(1);
> > +       swim_write(base, phase, (LSTRB<<4) | ((~LSTRB) & 0x0F));
> > +       udelay(1);
> > +
> > +       local_irq_restore(flags);
> > +}
> > +
> > +static inline int swim_readbit(struct swim __iomem *base, int bit)
> > +{
> > +       int stat;
> > +
> > +       swim_select(base, bit);
> > +
> > +       udelay(10);
> > +
> > +       stat = swim_read(base, handshake);
> > +
> > +       return (stat & SENSE) == 0;
> > +}
> > +
> > +static inline void swim_drive(struct swim __iomem *base,
> > +                             enum drive_location location)
> > +{
> > +       if (location == INTERNAL_DRIVE) {
> > +               swim_write(base, mode0, EXTERNAL_DRIVE); /* clear drive 1 bit */
> > +               swim_write(base, mode1, INTERNAL_DRIVE); /* set drive 0 bit */
> > +       } else if (location == EXTERNAL_DRIVE) {
> > +               swim_write(base, mode0, INTERNAL_DRIVE); /* clear drive 0 bit */
> > +               swim_write(base, mode1, EXTERNAL_DRIVE); /* set drive 1 bit */
> > +       }
> > +}
> > +
> > +static inline void swim_motor(struct swim __iomem *base,
> > +                             enum motor_action action)
> > +{
> > +       if (action == ON) {
> > +               int i;
> > +
> > +               swim_action(base, MOTOR_ON);
> > +
> > +               for (i = 0; i < 2*HZ; i++) {
> > +                       swim_select(base, RELAX);
> > +                       if (swim_readbit(base, MOTOR_ON))
> > +                               break;
> > +                       current->state = TASK_INTERRUPTIBLE;
> > +                       schedule_timeout(1);
> > +               }
> > +       } else if (action == OFF) {
> > +               swim_action(base, MOTOR_OFF);
> > +               swim_select(base, RELAX);
> > +       }
> > +}
> > +
> > +static inline void swim_eject(struct swim __iomem *base)
> > +{
> > +       int i;
> > +
> > +       swim_action(base, EJECT);
> > +
> > +       for (i = 0; i < 2*HZ; i++) {
> > +               swim_select(base, RELAX);
> > +               if (!swim_readbit(base, DISK_IN))
> > +                       break;
> > +               current->state = TASK_INTERRUPTIBLE;
> > +               schedule_timeout(1);
> > +       }
> > +       swim_select(base, RELAX);
> > +}
> > +
> > +static inline void swim_head(struct swim __iomem *base, enum head head)
> > +{
> > +       /* wait drive is ready */
> > +
> > +       if (head == UPPER_HEAD)
> > +               swim_select(base, READ_DATA_1);
> > +       else if (head == LOWER_HEAD)
> > +               swim_select(base, READ_DATA_0);
> > +}
> > +
> > +static inline int swim_step(struct swim __iomem *base)
> > +{
> > +       int wait;
> > +
> > +       swim_action(base, STEP);
> > +
> > +       for (wait = 0; wait < HZ; wait++) {
> > +
> > +               current->state = TASK_INTERRUPTIBLE;
> > +               schedule_timeout(1);
> > +
> > +               swim_select(base, RELAX);
> > +               if (!swim_readbit(base, STEP))
> > +                       return 0;
> > +       }
> > +       return -1;
> > +}
> > +
> > +static inline int swim_track00(struct swim __iomem *base)
> > +{
> > +       int try;
> > +
> > +       swim_action(base, SEEK_NEGATIVE);
> > +
> > +       for (try = 0; try < 100; try++) {
> > +
> > +               swim_select(base, RELAX);
> > +               if (swim_readbit(base, TRACK_ZERO))
> > +                       break;
> > +
> > +               if (swim_step(base))
> > +                       return -1;
> > +       }
> > +
> > +       if (swim_readbit(base, TRACK_ZERO))
> > +               return 0;
> > +
> > +       return -1;
> > +}
> > +
> > +static inline int swim_seek(struct swim __iomem *base, int step)
> > +{
> > +       if (step == 0)
> > +               return 0;
> > +
> > +       if (step < 0) {
> > +               swim_action(base, SEEK_NEGATIVE);
> > +               step = -step;
> > +       } else
> > +               swim_action(base, SEEK_POSITIVE);
> > +
> > +       for ( ; step > 0; step--) {
> > +               if (swim_step(base))
> > +                       return -1;
> > +       }
> > +
> > +       return 0;
> > +}
> > +
> > +static inline int swim_track(struct floppy_state *fs,  int track)
> > +{
> > +       struct swim __iomem *base = fs->swd->base;
> > +       int ret;
> > +
> > +       ret = swim_seek(base, track - fs->track);
> > +
> > +       if (ret == 0)
> > +               fs->track = track;
> > +       else {
> > +               swim_track00(base);
> > +               fs->track = 0;
> > +       }
> > +
> > +       return ret;
> > +}
> > +
> > +static int floppy_eject(struct floppy_state *fs)
> > +{
> > +       struct swim __iomem *base = fs->swd->base;
> > +
> > +       swim_drive(base, fs->location);
> > +       swim_motor(base, OFF);
> > +       swim_eject(base);
> > +
> > +       fs->disk_in = 0;
> > +       fs->ejected = 1;
> > +
> > +       return 0;
> > +}
> > +
> > +static inline int swim_read_sector(struct floppy_state *fs,
> > +                                  int side, int track,
> > +                                  int sector, unsigned char *buffer)
> > +{
> > +       struct swim __iomem *base = fs->swd->base;
> > +       unsigned long flags;
> > +       struct sector_header header;
> > +       int ret = -1;
> > +       short i;
> > +
> > +       swim_track(fs, track);
> > +
> > +       swim_write(base, mode1, MOTON);
> > +       swim_head(base, side);
> > +       swim_write(base, mode0, side);
> > +
> > +       local_irq_save(flags);
> > +       for (i = 0; i < 36; i++) {
> > +               ret = swim_read_sector_header(base, &header);
> > +               if (!ret && (header.sector == sector)) {
> > +                       /* found */
> > +
> > +                       ret = swim_read_sector_data(base, buffer);
> > +                       break;
> > +               }
> > +       }
> > +       local_irq_restore(flags);
> > +
> > +       swim_write(base, mode0, MOTON);
> > +
> > +       if ((header.side != side)  || (header.track != track) ||
> > +            (header.sector != sector))
> > +               return 0;
> > +
> > +       return ret;
> > +}
> > +
> > +static int floppy_read_sectors(struct floppy_state *fs,
> > +                              int req_sector, int sectors_nb,
> > +                              unsigned char *buffer)
> > +{
> > +       struct swim __iomem *base = fs->swd->base;
> > +       int ret;
> > +       int side, track, sector;
> > +       int i, try;
> > +
> > +
> > +       swim_drive(base, fs->location);
> > +       for (i = req_sector; i < req_sector + sectors_nb; i++) {
> > +               int x;
> > +               track = i / fs->secpercyl;
> > +               x = i % fs->secpercyl;
> > +               side = x / fs->secpertrack;
> > +               sector = x % fs->secpertrack + 1;
> > +
> > +               try = 5;
> > +               do {
> > +                       ret = swim_read_sector(fs, side, track, sector,
> > +                                               buffer);
> > +                       if (try-- == 0)
> > +                               return -1;
> > +               } while (ret != 512);
> > +
> > +               buffer += ret;
> > +       }
> > +
> > +       return 0;
> > +}
> > +
> > +static void redo_fd_request(struct request_queue *q)
> > +{
> > +       struct request *req;
> > +       struct floppy_state *fs;
> > +
> > +       while ((req = elv_next_request(q))) {
> > +
> > +               fs = req->rq_disk->private_data;
> > +               if (req->sector < 0 || req->sector >= fs->total_secs) {
> > +                       end_request(req, 0);
> > +                       continue;
> > +               }
> > +               if (req->current_nr_sectors == 0) {
> > +                       end_request(req, 1);
> > +                       continue;
> > +               }
> > +               if (!fs->disk_in) {
> > +                       end_request(req, 0);
> > +                       continue;
> > +               }
> > +               if (rq_data_dir(req) == WRITE) {
> > +                       if (fs->write_protected) {
> > +                               end_request(req, 0);
> > +                               continue;
> > +                       }
> > +               }
> > +               switch (rq_data_dir(req)) {
> > +               case WRITE:
> > +                       /* NOT IMPLEMENTED */
> > +                       end_request(req, 0);
> > +                       break;
> > +               case READ:
> > +                       if (floppy_read_sectors(fs, req->sector,
> > +                                               req->current_nr_sectors,
> > +                                               req->buffer)) {
> > +                               end_request(req, 0);
> > +                               continue;
> > +                       }
> > +                       req->nr_sectors -= req->current_nr_sectors;
> > +                       req->sector += req->current_nr_sectors;
> > +                       req->buffer += req->current_nr_sectors * 512;
> > +                       end_request(req, 1);
> > +                       break;
> > +               }
> > +       }
> > +}
> > +
> > +static void do_fd_request(struct request_queue *q)
> > +{
> > +       redo_fd_request(q);
> > +}
> > +
> > +static struct floppy_struct floppy_type[4] = {
> > +       {    0,  0, 0,  0, 0, 0x00, 0x00, 0x00, 0x00, NULL }, /* no testing   */
> > +       {  720,  9, 1, 80, 0, 0x2A, 0x02, 0xDF, 0x50, NULL }, /* 360KB SS 3.5"*/
> > +       { 1440,  9, 2, 80, 0, 0x2A, 0x02, 0xDF, 0x50, NULL }, /* 720KB 3.5"   */
> > +       { 2880, 18, 2, 80, 0, 0x1B, 0x00, 0xCF, 0x6C, NULL }, /* 1.44MB 3.5"  */
> > +};
> > +
> > +static int get_floppy_geometry(struct floppy_state *fs, int type,
> > +                              struct floppy_struct **g)
> > +{
> > +       if (type >= ARRAY_SIZE(floppy_type))
> > +               return -EINVAL;
> > +
> > +       if (type)
> > +               *g = &floppy_type[type];
> > +       else if (fs->type == HD_MEDIA) /* High-Density media */
> > +               *g = &floppy_type[3];
> > +       else if (fs->head_number == 2) /* double-sided */
> > +               *g = &floppy_type[2];
> > +       else
> > +               *g = &floppy_type[1];
> > +
> > +       return 0;
> > +}
> > +
> > +static void setup_medium(struct floppy_state *fs)
> > +{
> > +       struct swim __iomem *base = fs->swd->base;
> > +
> > +       if (swim_readbit(base, DISK_IN)) {
> > +               struct floppy_struct *g;
> > +               fs->disk_in = 1;
> > +               fs->write_protected = swim_readbit(base, WRITE_PROT);
> > +               fs->type = swim_readbit(base, ONEMEG_MEDIA);
> > +
> > +               if (swim_track00(base))
> > +                       printk(KERN_ERR
> > +                               "SWIM: cannot move floppy head to track 0\n");
> > +
> > +               swim_track00(base);
> > +
> > +               get_floppy_geometry(fs, 0, &g);
> > +               fs->total_secs = g->size;
> > +               fs->secpercyl = g->head * g->sect;
> > +               fs->secpertrack = g->sect;
> > +               fs->track = 0;
> > +       } else {
> > +               fs->disk_in = 0;
> > +       }
> > +}
> > +
> > +static int floppy_open(struct block_device *bdev, fmode_t mode)
> > +{
> > +       struct floppy_state *fs = bdev->bd_disk->private_data;
> > +       struct swim __iomem *base = fs->swd->base;
> > +       int err;
> > +
> > +       if (fs->ref_count == -1 || (fs->ref_count && mode & FMODE_EXCL))
> > +               return -EBUSY;
> > +
> > +       if (mode & FMODE_EXCL)
> > +               fs->ref_count = -1;
> > +       else
> > +               fs->ref_count++;
> > +
> > +       swim_write(base, setup, S_IBM_DRIVE  | S_FCLK_DIV2);
> > +       udelay(10);
> > +       swim_drive(base, INTERNAL_DRIVE);
> > +       swim_motor(base, ON);
> > +       swim_action(base, SETMFM);
> > +       if (fs->ejected)
> > +               setup_medium(fs);
> > +       if (!fs->disk_in) {
> > +               err = -ENXIO;
> > +               goto out;
> > +       }
> > +
> > +       if (mode & FMODE_NDELAY)
> > +               return 0;
> > +
> > +       if (mode & (FMODE_READ|FMODE_WRITE)) {
> > +               check_disk_change(bdev);
> > +               if ((mode & FMODE_WRITE) && fs->write_protected) {
> > +                       err = -EROFS;
> > +                       goto out;
> > +               }
> > +       }
> > +       return 0;
> > +out:
> > +       if (fs->ref_count < 0)
> > +               fs->ref_count = 0;
> > +       else if (fs->ref_count > 0)
> > +               --fs->ref_count;
> > +
> > +       if (fs->ref_count == 0)
> > +               swim_motor(base, OFF);
> > +       return err;
> > +}
> > +
> > +static int floppy_release(struct gendisk *disk, fmode_t mode)
> > +{
> > +       struct floppy_state *fs = disk->private_data;
> > +       struct swim __iomem *base = fs->swd->base;
> > +
> > +       if (fs->ref_count < 0)
> > +               fs->ref_count = 0;
> > +       else if (fs->ref_count > 0)
> > +               --fs->ref_count;
> > +
> > +       if (fs->ref_count == 0)
> > +               swim_motor(base, OFF);
> > +
> > +       return 0;
> > +}
> > +
> > +static int floppy_ioctl(struct block_device *bdev, fmode_t mode,
> > +                       unsigned int cmd, unsigned long param)
> > +{
> > +       struct floppy_state *fs = bdev->bd_disk->private_data;
> > +       int err;
> > +
> > +       if ((cmd & 0x80) && !capable(CAP_SYS_ADMIN))
> > +                       return -EPERM;
> > +
> > +       switch (cmd) {
> > +       case FDEJECT:
> > +               if (fs->ref_count != 1)
> > +                       return -EBUSY;
> > +               err = floppy_eject(fs);
> > +               return err;
> > +
> > +       case FDGETPRM:
> > +               if (copy_to_user((void __user *) param, (void *) &floppy_type,
> > +                                sizeof(struct floppy_struct)))
> > +                       return -EFAULT;
> > +               break;
> > +
> > +       default:
> > +               printk(KERN_DEBUG "SWIM floppy_ioctl: unknown cmd %d\n",
> > +                      cmd);
> > +               return -ENOSYS;
> > +       }
> > +       return 0;
> > +}
> > +
> > +static int floppy_getgeo(struct block_device *bdev, struct hd_geometry *geo)
> > +{
> > +       struct floppy_state *fs = bdev->bd_disk->private_data;
> > +       struct floppy_struct *g;
> > +       int ret;
> > +
> > +       ret = get_floppy_geometry(fs, 0, &g);
> > +       if (ret)
> > +               return ret;
> > +
> > +       geo->heads = g->head;
> > +       geo->sectors = g->sect;
> > +       geo->cylinders = g->track;
> > +
> > +       return 0;
> > +}
> > +
> > +static int floppy_check_change(struct gendisk *disk)
> > +{
> > +       struct floppy_state *fs = disk->private_data;
> > +
> > +       return fs->ejected;
> > +}
> > +
> > +static int floppy_revalidate(struct gendisk *disk)
> > +{
> > +       struct floppy_state *fs = disk->private_data;
> > +       struct swim __iomem *base = fs->swd->base;
> > +
> > +       swim_drive(base, fs->location);
> > +
> > +       if (fs->ejected)
> > +               setup_medium(fs);
> > +
> > +       if (!fs->disk_in)
> > +               swim_motor(base, OFF);
> > +       else
> > +               fs->ejected = 0;
> > +
> > +       return !fs->disk_in;
> > +}
> > +
> > +static struct block_device_operations floppy_fops = {
> > +       .owner           = THIS_MODULE,
> > +       .open            = floppy_open,
> > +       .release         = floppy_release,
> > +       .locked_ioctl    = floppy_ioctl,
> > +       .getgeo          = floppy_getgeo,
> > +       .media_changed   = floppy_check_change,
> > +       .revalidate_disk = floppy_revalidate,
> > +};
> > +
> > +static struct kobject *floppy_find(dev_t dev, int *part, void *data)
> > +{
> > +       struct swim_priv *swd = data;
> > +       int drive = (*part & 3);
> > +
> > +       if (drive > swd->floppy_count)
> > +               return NULL;
> > +
> > +       *part = 0;
> > +       return get_disk(swd->unit[drive].disk);
> > +}
> > +
> > +static int __devinit swim_add_floppy(struct swim_priv *swd,
> > +                                    enum drive_location location)
> > +{
> > +       struct floppy_state *fs = &swd->unit[swd->floppy_count];
> > +       struct swim __iomem *base = swd->base;
> > +
> > +       fs->location = location;
> > +
> > +       swim_drive(base, location);
> > +
> > +       swim_motor(base, OFF);
> > +
> > +       if (swim_readbit(base, SINGLE_SIDED))
> > +               fs->head_number = 1;
> > +       else
> > +               fs->head_number = 2;
> > +       fs->ref_count = 0;
> > +       fs->ejected = 1;
> > +
> > +       swd->floppy_count++;
> > +
> > +       return 0;
> > +}
> > +
> > +static int __devinit swim_floppy_init(struct swim_priv *swd)
> > +{
> > +       int err;
> > +       int drive;
> > +       struct swim __iomem *base = swd->base;
> > +
> > +       /* scan floppy drives */
> > +
> > +       swim_drive(base, INTERNAL_DRIVE);
> > +       if (swim_readbit(base, DRIVE_PRESENT))
> > +               swim_add_floppy(swd, INTERNAL_DRIVE);
> > +       swim_drive(base, EXTERNAL_DRIVE);
> > +       if (swim_readbit(base, DRIVE_PRESENT))
> > +               swim_add_floppy(swd, EXTERNAL_DRIVE);
> > +
> > +       /* register floppy drives */
> > +
> > +       err = register_blkdev(FLOPPY_MAJOR, "fd");
> > +       if (err) {
> > +               printk(KERN_ERR "Unable to get major %d for SWIM floppy\n",
> > +                      FLOPPY_MAJOR);
> > +               return -EBUSY;
> > +       }
> > +
> > +       for (drive = 0; drive < swd->floppy_count; drive++) {
> > +               swd->unit[drive].disk = alloc_disk(1);
> > +               if (swd->unit[drive].disk == NULL) {
> > +                       err = -ENOMEM;
> > +                       goto exit_put_disks;
> > +               }
> > +               swd->unit[drive].swd = swd;
> > +       }
> > +
> > +       swd->queue = blk_init_queue(do_fd_request, &swd->lock);
> > +       if (!swd->queue) {
> > +               err = -ENOMEM;
> > +               goto exit_put_disks;
> > +       }
> > +
> > +       for (drive = 0; drive < swd->floppy_count; drive++) {
> > +               swd->unit[drive].disk->flags = GENHD_FL_REMOVABLE;
> > +               swd->unit[drive].disk->major = FLOPPY_MAJOR;
> > +               swd->unit[drive].disk->first_minor = drive;
> > +               sprintf(swd->unit[drive].disk->disk_name, "fd%d", drive);
> > +               swd->unit[drive].disk->fops = &floppy_fops;
> > +               swd->unit[drive].disk->private_data = &swd->unit[drive];
> > +               swd->unit[drive].disk->queue = swd->queue;
> > +               set_capacity(swd->unit[drive].disk, 2880);
> > +               add_disk(swd->unit[drive].disk);
> > +       }
> > +
> > +       blk_register_region(MKDEV(FLOPPY_MAJOR, 0), 256, THIS_MODULE,
> > +                           floppy_find, NULL, swd);
> > +
> > +       return 0;
> > +
> > +exit_put_disks:
> > +       unregister_blkdev(FLOPPY_MAJOR, "fd");
> > +       while (drive--)
> > +               put_disk(swd->unit[drive].disk);
> > +       return err;
> > +}
> > +
> > +static int __devinit swim_probe(struct platform_device *dev)
> > +{
> > +       struct resource *res;
> > +       struct swim __iomem *swim_base;
> > +       struct swim_priv *swd;
> > +       int ret;
> > +
> > +       res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs");
> > +       if (!res) {
> > +               ret = -ENODEV;
> > +               goto out;
> > +       }
> > +
> > +       if (!request_mem_region(res->start, resource_size(res), CARDNAME)) {
> > +               ret = -EBUSY;
> > +               goto out;
> > +       }
> > +
> > +       swim_base = ioremap(res->start, resource_size(res));
> > +       if (!swim_base) {
> > +               return -ENOMEM;
> > +               goto out_release_io;
> > +       }
> > +
> > +       /* probe device */
> > +
> > +       set_swim_mode(swim_base, 1);
> > +       if (!get_swim_mode(swim_base)) {
> > +               printk(KERN_INFO "SWIM device not found !\n");
> > +               ret = -ENODEV;
> > +               goto out_iounmap;
> > +       }
> > +
> > +       /* set platform driver data */
> > +
> > +       swd = kzalloc(sizeof(struct swim_priv), GFP_KERNEL);
> > +       if (!swd) {
> > +               ret = -ENOMEM;
> > +               goto out_iounmap;
> > +       }
> > +       platform_set_drvdata(dev, swd);
> > +
> > +       swd->base = swim_base;
> > +
> > +       ret = swim_floppy_init(swd);
> > +       if (ret)
> > +               goto out_kfree;
> > +
> > +       return 0;
> > +
> > +out_kfree:
> > +       platform_set_drvdata(dev, NULL);
> > +       kfree(swd);
> > +out_iounmap:
> > +       iounmap(swim_base);
> > +out_release_io:
> > +       release_mem_region(res->start, resource_size(res));
> > +out:
> > +       return ret;
> > +}
> > +
> > +static int __devexit swim_remove(struct platform_device *dev)
> > +{
> > +       struct swim_priv *swd = platform_get_drvdata(dev);
> > +       int drive;
> > +       struct resource *res;
> > +
> > +       blk_unregister_region(MKDEV(FLOPPY_MAJOR, 0), 256);
> > +
> > +       for (drive = 0; drive < swd->floppy_count; drive++) {
> > +               del_gendisk(swd->unit[drive].disk);
> > +               put_disk(swd->unit[drive].disk);
> > +       }
> > +
> > +       unregister_blkdev(FLOPPY_MAJOR, "fd");
> > +
> > +       blk_cleanup_queue(swd->queue);
> > +
> > +       /* eject floppies */
> > +
> > +       for (drive = 0; drive < swd->floppy_count; drive++)
> > +               floppy_eject(&swd->unit[drive]);
> > +
> > +       iounmap(swd->base);
> > +
> > +       res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs");
> > +       if (res)
> > +               release_mem_region(res->start, resource_size(res));
> > +
> > +       platform_set_drvdata(dev, NULL);
> > +       kfree(swd);
> > +
> > +       return 0;
> > +}
> > +
> > +static struct platform_driver swim_driver = {
> > +       .probe  = swim_probe,
> > +       .remove = __devexit_p(swim_remove),
> > +       .driver   = {
> > +               .name   = CARDNAME,
> > +               .owner  = THIS_MODULE,
> > +       },
> > +};
> > +
> > +static int __init swim_init(void)
> > +{
> > +       printk(KERN_INFO "SWIM floppy driver %s\n", DRIVER_VERSION);
> > +
> > +       return platform_driver_register(&swim_driver);
> > +}
> > +module_init(swim_init);
> > +
> > +static void __exit swim_exit(void)
> > +{
> > +       platform_driver_unregister(&swim_driver);
> > +}
> > +module_exit(swim_exit);
> > +
> > +MODULE_DESCRIPTION("Driver for SWIM floppy controller");
> > +MODULE_LICENSE("GPL");
> > +MODULE_AUTHOR("Laurent Vivier <laurent@lvivier.info>");
> > +MODULE_ALIAS_BLOCKDEV_MAJOR(FLOPPY_MAJOR);
> > diff --git a/drivers/block/swim_asm.S b/drivers/block/swim_asm.S
> > new file mode 100644
> > index 0000000..c966820
> > --- /dev/null
> > +++ b/drivers/block/swim_asm.S
> > @@ -0,0 +1,247 @@
> > +/*
> > + * low-level functions for the SWIM floppy controller
> > + *
> > + * needs assembly language because is very timing dependent
> > + * this controller exists only on macintosh 680x0 based
> > + *
> > + * Copyright (C) 2004,2008 Laurent Vivier <Laurent@lvivier.info>
> > + *
> > + * based on Alastair Bridgewater SWIM analysis, 2001
> > + * based on netBSD IWM driver (c) 1997, 1998 Hauke Fath.
> > + *
> > + * 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.
> > + *
> > + * 2004-08-21 (lv) - Initial implementation
> > + * 2008-11-05 (lv) - add get_swim_mode
> > + */
> > +
> > +       .equ    write_data,     0x0000
> > +       .equ    write_mark,     0x0200
> > +       .equ    write_CRC,      0x0400
> > +       .equ    write_parameter,0x0600
> > +       .equ    write_phase,    0x0800
> > +       .equ    write_setup,    0x0a00
> > +       .equ    write_mode0,    0x0c00
> > +       .equ    write_mode1,    0x0e00
> > +       .equ    read_data,      0x1000
> > +       .equ    read_mark,      0x1200
> > +       .equ    read_error,     0x1400
> > +       .equ    read_parameter, 0x1600
> > +       .equ    read_phase,     0x1800
> > +       .equ    read_setup,     0x1a00
> > +       .equ    read_status,    0x1c00
> > +       .equ    read_handshake, 0x1e00
> > +
> > +       .equ    o_side, 0
> > +       .equ    o_track, 1
> > +       .equ    o_sector, 2
> > +       .equ    o_size, 3
> > +       .equ    o_crc0, 4
> > +       .equ    o_crc1, 5
> > +
> > +       .equ    seek_time, 30000
> > +       .equ    max_retry, 40
> > +       .equ    sector_size, 512
> > +
> > +       .global swim_read_sector_header
> > +swim_read_sector_header:
> > +       link    %a6, #0
> > +       moveml  %d1-%d5/%a0-%a4,%sp@-
> > +       movel   %a6@(0x0c), %a4
> > +       bsr     mfm_read_addrmark
> > +       moveml  %sp@+, %d1-%d5/%a0-%a4
> > +       unlk    %a6
> > +       rts
> > +
> > +sector_address_mark:
> > +       .byte   0xa1, 0xa1, 0xa1, 0xfe
> > +sector_data_mark:
> > +       .byte   0xa1, 0xa1, 0xa1, 0xfb
> > +
> > +mfm_read_addrmark:
> > +       movel   %a6@(0x08), %a3
> > +       lea     %a3@(read_handshake), %a2
> > +       lea     %a3@(read_mark), %a3
> > +       moveq   #-1, %d0
> > +       movew   #seek_time, %d2
> > +
> > +wait_header_init:
> > +       tstb    %a3@(read_error - read_mark)
> > +       moveb   #0x18, %a3@(write_mode0 - read_mark)
> > +       moveb   #0x01, %a3@(write_mode1 - read_mark)
> > +       moveb   #0x01, %a3@(write_mode0 - read_mark)
> > +       tstb    %a3@(read_error - read_mark)
> > +       moveb   #0x08, %a3@(write_mode1 - read_mark)
> > +
> > +       lea     sector_address_mark, %a0
> > +       moveq   #3, %d1
> > +
> > +wait_addr_mark_byte:
> > +
> > +       tstb    %a2@
> > +       dbmi    %d2, wait_addr_mark_byte
> > +       bpl     header_exit
> > +
> > +       moveb   %a3@, %d3
> > +       cmpb    %a0@+, %d3
> > +       dbne    %d1, wait_addr_mark_byte
> > +       bne     wait_header_init
> > +
> > +       moveq   #max_retry, %d2
> > +
> > +amark0:        tstb    %a2@
> > +       dbmi    %d2, amark0
> > +       bpl     signal_nonyb
> > +
> > +       moveb   %a3@, %a4@(o_track)
> > +
> > +       moveq   #max_retry, %d2
> > +
> > +amark1:        tstb    %a2@
> > +       dbmi    %d2, amark1
> > +       bpl     signal_nonyb
> > +
> > +       moveb   %a3@, %a4@(o_side)
> > +
> > +       moveq   #max_retry, %d2
> > +
> > +amark2:        tstb    %a2@
> > +       dbmi    %d2, amark2
> > +       bpl     signal_nonyb
> > +
> > +       moveb   %a3@, %a4@(o_sector)
> > +
> > +       moveq   #max_retry, %d2
> > +
> > +amark3:        tstb    %a2@
> > +       dbmi    %d2, amark3
> > +       bpl     signal_nonyb
> > +
> > +       moveb   %a3@, %a4@(o_size)
> > +
> > +       moveq   #max_retry, %d2
> > +
> > +crc0:  tstb    %a2@
> > +       dbmi    %d2, crc0
> > +       bpl     signal_nonyb
> > +
> > +       moveb   %a3@, %a4@(o_crc0)
> > +
> > +       moveq   #max_retry, %d2
> > +
> > +crc1:  tstb    %a2@
> > +       dbmi    %d2, crc1
> > +       bpl     signal_nonyb
> > +
> > +       moveb   %a3@, %a4@(o_crc1)
> > +
> > +       tstb    %a3@(read_error - read_mark)
> > +
> > +header_exit:
> > +       moveq   #0, %d0
> > +       moveb   #0x18, %a3@(write_mode0 - read_mark)
> > +       rts
> > +signal_nonyb:
> > +       moveq   #-1, %d0
> > +       moveb   #0x18, %a3@(write_mode0 - read_mark)
> > +       rts
> > +
> > +       .global swim_read_sector_data
> > +swim_read_sector_data:
> > +       link    %a6, #0
> > +       moveml  %d1-%d5/%a0-%a5,%sp@-
> > +       movel   %a6@(0x0c), %a4
> > +       bsr     mfm_read_data
> > +       moveml  %sp@+, %d1-%d5/%a0-%a5
> > +       unlk    %a6
> > +       rts
> > +
> > +mfm_read_data:
> > +       movel   %a6@(0x08), %a3
> > +       lea     %a3@(read_handshake), %a2
> > +       lea     %a3@(read_data), %a5
> > +       lea     %a3@(read_mark), %a3
> > +       movew   #seek_time, %d2
> > +
> > +wait_data_init:
> > +       tstb    %a3@(read_error - read_mark)
> > +       moveb   #0x18, %a3@(write_mode0 - read_mark)
> > +       moveb   #0x01, %a3@(write_mode1 - read_mark)
> > +       moveb   #0x01, %a3@(write_mode0 - read_mark)
> > +       tstb    %a3@(read_error - read_mark)
> > +       moveb   #0x08, %a3@(write_mode1 - read_mark)
> > +
> > +       lea     sector_data_mark, %a0
> > +       moveq   #3, %d1
> > +
> > +       /* wait data address mark */
> > +
> > +wait_data_mark_byte:
> > +
> > +       tstb    %a2@
> > +       dbmi    %d2, wait_data_mark_byte
> > +       bpl     data_exit
> > +
> > +       moveb   %a3@, %d3
> > +       cmpb    %a0@+, %d3
> > +       dbne    %d1, wait_data_mark_byte
> > +       bne     wait_data_init
> > +
> > +       /* read data */
> > +
> > +       tstb    %a3@(read_error - read_mark)
> > +
> > +       movel   #sector_size-1, %d4             /* sector size */
> > +read_new_data:
> > +       movew   #max_retry, %d2
> > +read_data_loop:
> > +       moveb   %a2@, %d5
> > +       andb    #0xc0, %d5
> > +       dbne    %d2, read_data_loop
> > +       beq     data_exit
> > +       moveb   %a5@, %a4@+
> > +       andb    #0x40, %d5
> > +       dbne    %d4, read_new_data
> > +       beq     exit_loop
> > +       moveb   %a5@, %a4@+
> > +       dbra    %d4, read_new_data
> > +exit_loop:
> > +
> > +       /* read CRC */
> > +
> > +       movew   #max_retry, %d2
> > +data_crc0:
> > +
> > +       tstb    %a2@
> > +       dbmi    %d2, data_crc0
> > +       bpl     data_exit
> > +
> > +       moveb   %a3@, %d5
> > +
> > +       moveq   #max_retry, %d2
> > +
> > +data_crc1:
> > +
> > +       tstb    %a2@
> > +       dbmi    %d2, data_crc1
> > +       bpl     data_exit
> > +
> > +       moveb   %a3@, %d5
> > +
> > +       tstb    %a3@(read_error - read_mark)
> > +
> > +       moveb   #0x18, %a3@(write_mode0 - read_mark)
> > +
> > +       /* return number of bytes read */
> > +
> > +       movel   #sector_size, %d0
> > +       addw    #1, %d4
> > +       subl    %d4, %d0
> > +       rts
> > +data_exit:
> > +       moveb   #0x18, %a3@(write_mode0 - read_mark)
> > +       moveq   #-1, %d0
> > +       rts
> > --
> > 1.6.1.3
> >
> >
>
>
>
> --
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds

--
Jens Axboe

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