Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 222 insertions, 0 deletions

diff --git a/drivers/parport/parport_gsc.h b/drivers/parport/parport_gsc.h
new file mode 100644
index 000000000000..662f6c1fee5d
--- /dev/null
+++ b/drivers/parport/parport_gsc.h
@@ -0,0 +1,222 @@
+/*
+ *      Low-level parallel-support for PC-style hardware integrated in the
+ *      LASI-Controller (on GSC-Bus) for HP-PARISC Workstations
+ *
+ *      (C) 1999-2001 by Helge Deller <deller@gmx.de>
+ *
+ *
+ *      This program is free software; you can redistribute it and/or modify
+ *      it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ *
+ *      This program is distributed in the hope that it will be useful,
+ *      but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *      GNU General Public License for more details.
+ *
+ *      You should have received a copy of the GNU General Public License
+ *      along with this program; if not, write to the Free Software
+ *      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * based on parport_pc.c by
+ *          Grant Guenther <grant@torque.net>
+ *          Phil Blundell <Philip.Blundell@pobox.com>
+ *          Tim Waugh <tim@cyberelk.demon.co.uk>
+ *          Jose Renau <renau@acm.org>
+ *          David Campbell <campbell@torque.net>
+ *          Andrea Arcangeli
+ */
+
+#ifndef __DRIVERS_PARPORT_PARPORT_GSC_H
+#define __DRIVERS_PARPORT_PARPORT_GSC_H
+
+#include <asm/io.h>
+#include <linux/delay.h>
+
+#undef  DEBUG_PARPORT   /* undefine for production */
+#define DELAY_TIME      0
+
+#if DELAY_TIME == 0
+#define parport_readb   gsc_readb
+#define parport_writeb  gsc_writeb
+#else
+static __inline__ unsigned char parport_readb( unsigned long port )
+{
+    udelay(DELAY_TIME);
+    return gsc_readb(port);
+}
+
+static __inline__ void parport_writeb( unsigned char value, unsigned long port )
+{
+    gsc_writeb(value,port);
+    udelay(DELAY_TIME);
+}
+#endif
+
+/* --- register definitions ------------------------------- */
+
+#define EPPDATA(p)  ((p)->base    + 0x4)
+#define EPPADDR(p)  ((p)->base    + 0x3)
+#define CONTROL(p)  ((p)->base    + 0x2)
+#define STATUS(p)   ((p)->base    + 0x1)
+#define DATA(p)     ((p)->base    + 0x0)
+
+struct parport_gsc_private {
+        /* Contents of CTR. */
+        unsigned char ctr;
+
+        /* Bitmask of writable CTR bits. */
+        unsigned char ctr_writable;
+
+        /* Number of bytes per portword. */
+        int pword;
+
+        /* Not used yet. */
+        int readIntrThreshold;
+        int writeIntrThreshold;
+
+        /* buffer suitable for DMA, if DMA enabled */
+        char *dma_buf;
+        dma_addr_t dma_handle;
+        struct pci_dev *dev;
+};
+
+static inline void parport_gsc_write_data(struct parport *p, unsigned char d)
+{
+#ifdef DEBUG_PARPORT
+        printk (KERN_DEBUG "parport_gsc_write_data(%p,0x%02x)\n", p, d);
+#endif
+        parport_writeb(d, DATA(p));
+}
+
+static inline unsigned char parport_gsc_read_data(struct parport *p)
+{
+        unsigned char val = parport_readb (DATA (p));
+#ifdef DEBUG_PARPORT
+        printk (KERN_DEBUG "parport_gsc_read_data(%p) = 0x%02x\n",
+                p, val);
+#endif
+        return val;
+}
+
+/* __parport_gsc_frob_control differs from parport_gsc_frob_control in that
+ * it doesn't do any extra masking. */
+static inline unsigned char __parport_gsc_frob_control(struct parport *p,
+                                                        unsigned char mask,
+                                                        unsigned char val)
+{
+        struct parport_gsc_private *priv = p->physport->private_data;
+        unsigned char ctr = priv->ctr;
+#ifdef DEBUG_PARPORT
+        printk (KERN_DEBUG
+                "__parport_gsc_frob_control(%02x,%02x): %02x -> %02x\n",
+                mask, val, ctr, ((ctr & ~mask) ^ val) & priv->ctr_writable);
+#endif
+        ctr = (ctr & ~mask) ^ val;
+        ctr &= priv->ctr_writable; /* only write writable bits. */
+        parport_writeb (ctr, CONTROL (p));
+        priv->ctr = ctr;        /* Update soft copy */
+        return ctr;
+}
+
+static inline void parport_gsc_data_reverse(struct parport *p)
+{
+        __parport_gsc_frob_control (p, 0x20, 0x20);
+}
+
+static inline void parport_gsc_data_forward(struct parport *p)
+{
+        __parport_gsc_frob_control (p, 0x20, 0x00);
+}
+
+static inline void parport_gsc_write_control(struct parport *p,
+                                                 unsigned char d)
+{
+        const unsigned char wm = (PARPORT_CONTROL_STROBE |
+                                  PARPORT_CONTROL_AUTOFD |
+                                  PARPORT_CONTROL_INIT |
+                                  PARPORT_CONTROL_SELECT);
+
+        /* Take this out when drivers have adapted to newer interface. */
+        if (d & 0x20) {
+                printk (KERN_DEBUG "%s (%s): use data_reverse for this!\n",
+                        p->name, p->cad->name);
+                parport_gsc_data_reverse (p);
+        }
+
+        __parport_gsc_frob_control (p, wm, d & wm);
+}
+
+static inline unsigned char parport_gsc_read_control(struct parport *p)
+{
+        const unsigned char rm = (PARPORT_CONTROL_STROBE |
+                                  PARPORT_CONTROL_AUTOFD |
+                                  PARPORT_CONTROL_INIT |
+                                  PARPORT_CONTROL_SELECT);
+        const struct parport_gsc_private *priv = p->physport->private_data;
+        return priv->ctr & rm; /* Use soft copy */
+}
+
+static inline unsigned char parport_gsc_frob_control(struct parport *p,
+                                                        unsigned char mask,
+                                                        unsigned char val)
+{
+        const unsigned char wm = (PARPORT_CONTROL_STROBE |
+                                  PARPORT_CONTROL_AUTOFD |
+                                  PARPORT_CONTROL_INIT |
+                                  PARPORT_CONTROL_SELECT);
+
+        /* Take this out when drivers have adapted to newer interface. */
+        if (mask & 0x20) {
+                printk (KERN_DEBUG "%s (%s): use data_%s for this!\n",
+                        p->name, p->cad->name,
+                        (val & 0x20) ? "reverse" : "forward");
+                if (val & 0x20)
+                        parport_gsc_data_reverse (p);
+                else
+                        parport_gsc_data_forward (p);
+        }
+
+        /* Restrict mask and val to control lines. */
+        mask &= wm;
+        val &= wm;
+
+        return __parport_gsc_frob_control (p, mask, val);
+}
+
+static inline unsigned char parport_gsc_read_status(struct parport *p)
+{
+        return parport_readb (STATUS(p));
+}
+
+static inline void parport_gsc_disable_irq(struct parport *p)
+{
+        __parport_gsc_frob_control (p, 0x10, 0x00);
+}
+
+static inline void parport_gsc_enable_irq(struct parport *p)
+{
+        __parport_gsc_frob_control (p, 0x10, 0x10);
+}
+
+extern void parport_gsc_release_resources(struct parport *p);
+
+extern int parport_gsc_claim_resources(struct parport *p);
+
+extern void parport_gsc_init_state(struct pardevice *, struct parport_state *s);
+
+extern void parport_gsc_save_state(struct parport *p, struct parport_state *s);
+
+extern void parport_gsc_restore_state(struct parport *p, struct parport_state *s);
+
+extern void parport_gsc_inc_use_count(void);
+
+extern void parport_gsc_dec_use_count(void);
+
+extern struct parport *parport_gsc_probe_port(unsigned long base,
+                                                unsigned long base_hi,
+                                                int irq, int dma,
+                                                struct pci_dev *dev);
+
+#endif  /* __DRIVERS_PARPORT_PARPORT_GSC_H */