Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/scsi/ppa.h b/drivers/scsi/ppa.h
new file mode 100644
index 0000000..f6e1a15
--- /dev/null
+++ b/drivers/scsi/ppa.h
@@ -0,0 +1,151 @@
+/* Driver for the PPA3 parallel port SCSI HBA embedded in
+ * the Iomega ZIP drive
+ *
+ * (c) 1996 Grant R. Guenther grant@torque.net
+ * David Campbell campbell@torque.net
+ *
+ * All comments to David.
+ */
+
+#ifndef _PPA_H
+#define _PPA_H
+
+#define PPA_VERSION "2.07 (for Linux 2.4.x)"
+
+/*
+ * this driver has been hacked by Matteo Frigo (athena@theory.lcs.mit.edu)
+ * to support EPP and scatter-gather. [0.26-athena]
+ *
+ * additional hacks by David Campbell
+ * in response to this driver "mis-behaving" on his machine.
+ * Fixed EPP to handle "software" changing of EPP port data direction.
+ * Chased down EPP timeouts
+ * Made this driver "kernel version friendly" [0.28-athena]
+ *
+ * [ Stuff removed ]
+ *
+ * Corrected ppa.h for 2.1.x kernels (>=2.1.85)
+ * Modified "Nat Semi Kludge" for extended chipsets
+ * [1.41]
+ *
+ * Fixed id_probe for EPP 1.9 chipsets (misdetected as EPP 1.7)
+ * [1.42]
+ *
+ * Development solely for 2.1.x kernels from now on!
+ * [2.00]
+ *
+ * Hack and slash at the init code (EPP device check routine)
+ * Added INSANE option.
+ * [2.01]
+ *
+ * Patch applied to sync against the 2.1.x kernel code
+ * Included qboot_zip.sh
+ * [2.02]
+ *
+ * Cleaned up the mess left by someone else trying to fix the
+ * asm section to keep egcc happy. The asm section no longer
+ * exists, the nibble code is *almost* as fast as the asm code
+ * providing it is compiled with egcc.
+ *
+ * Other clean ups include the follow changes:
+ * CONFIG_SCSI_PPA_HAVE_PEDANTIC => CONFIG_SCSI_IZIP_EPP16
+ * added CONFIG_SCSI_IZIP_SLOW_CTR option
+ * [2.03]
+ *
+ * Use ppa_wait() to check for ready AND connected status bits
+ * Add ppa_wait() calls to ppa_completion()
+ * by Peter Cherriman <pjc@ecs.soton.ac.uk> and
+ * Tim Waugh <twaugh@redhat.com>
+ * [2.04]
+ *
+ * Fix kernel panic on scsi timeout, 2000-08-18 [2.05]
+ *
+ * Avoid io_request_lock problems.
+ * John Cavan <johncavan@home.com> [2.06]
+ *
+ * Busy wait for connected status bit in ppa_completion()
+ * in order to cope with some hardware that has this bit low
+ * for short periods of time.
+ * Add udelay() to ppa_select()
+ * by Peter Cherriman <pjc@ecs.soton.ac.uk> and
+ * Oleg Makarenko <omakarenko@cyberplat.ru>
+ * [2.07]
+ */
+/* ------ END OF USER CONFIGURABLE PARAMETERS ----- */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/blkdev.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <scsi/scsi_host.h>
+/* batteries not included :-) */
+
+/*
+ * modes in which the driver can operate
+ */
+#define PPA_AUTODETECT 0 /* Autodetect mode */
+#define PPA_NIBBLE 1 /* work in standard 4 bit mode */
+#define PPA_PS2 2 /* PS/2 byte mode */
+#define PPA_EPP_8 3 /* EPP mode, 8 bit */
+#define PPA_EPP_16 4 /* EPP mode, 16 bit */
+#define PPA_EPP_32 5 /* EPP mode, 32 bit */
+#define PPA_UNKNOWN 6 /* Just in case... */
+
+static char *PPA_MODE_STRING[] =
+{
+ "Autodetect",
+ "SPP",
+ "PS/2",
+ "EPP 8 bit",
+ "EPP 16 bit",
+#ifdef CONFIG_SCSI_IZIP_EPP16
+ "EPP 16 bit",
+#else
+ "EPP 32 bit",
+#endif
+ "Unknown"};
+
+/* other options */
+#define PPA_BURST_SIZE 512 /* data burst size */
+#define PPA_SELECT_TMO 5000 /* how long to wait for target ? */
+#define PPA_SPIN_TMO 50000 /* ppa_wait loop limiter */
+#define PPA_RECON_TMO 500 /* scsi reconnection loop limiter */
+#define PPA_DEBUG 0 /* debugging option */
+#define IN_EPP_MODE(x) (x == PPA_EPP_8 || x == PPA_EPP_16 || x == PPA_EPP_32)
+
+/* args to ppa_connect */
+#define CONNECT_EPP_MAYBE 1
+#define CONNECT_NORMAL 0
+
+#define r_dtr(x) (unsigned char)inb((x))
+#define r_str(x) (unsigned char)inb((x)+1)
+#define r_ctr(x) (unsigned char)inb((x)+2)
+#define r_epp(x) (unsigned char)inb((x)+4)
+#define r_fifo(x) (unsigned char)inb((x)) /* x must be base_hi */
+ /* On PCI is base+0x400 != base_hi */
+#define r_ecr(x) (unsigned char)inb((x)+0x2) /* x must be base_hi */
+
+#define w_dtr(x,y) outb(y, (x))
+#define w_str(x,y) outb(y, (x)+1)
+#define w_epp(x,y) outb(y, (x)+4)
+#define w_fifo(x,y) outb(y, (x)) /* x must be base_hi */
+#define w_ecr(x,y) outb(y, (x)+0x2)/* x must be base_hi */
+
+#ifdef CONFIG_SCSI_IZIP_SLOW_CTR
+#define w_ctr(x,y) outb_p(y, (x)+2)
+#else
+#define w_ctr(x,y) outb(y, (x)+2)
+#endif
+
+static int ppa_engine(ppa_struct *, struct scsi_cmnd *);
+
+#endif /* _PPA_H */