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/block/paride/on20.c b/drivers/block/paride/on20.c
new file mode 100644
index 0000000..9f8e010
--- /dev/null
+++ b/drivers/block/paride/on20.c
@@ -0,0 +1,153 @@
+/*
+ on20.c (c) 1996-8 Grant R. Guenther <grant@torque.net>
+ Under the terms of the GNU General Public License.
+
+ on20.c is a low-level protocol driver for the
+ Onspec 90c20 parallel to IDE adapter.
+*/
+
+/* Changes:
+
+ 1.01 GRG 1998.05.06 init_proto, release_proto
+
+*/
+
+#define ON20_VERSION "1.01"
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/wait.h>
+#include <asm/io.h>
+
+#include "paride.h"
+
+#define op(f) w2(4);w0(f);w2(5);w2(0xd);w2(5);w2(0xd);w2(5);w2(4);
+#define vl(v) w2(4);w0(v);w2(5);w2(7);w2(5);w2(4);
+
+#define j44(a,b) (((a>>4)&0x0f)|(b&0xf0))
+
+/* cont = 0 - access the IDE register file
+ cont = 1 - access the IDE command set
+*/
+
+static int on20_read_regr( PIA *pi, int cont, int regr )
+
+{ int h,l, r ;
+
+ r = (regr<<2) + 1 + cont;
+
+ op(1); vl(r); op(0);
+
+ switch (pi->mode) {
+
+ case 0: w2(4); w2(6); l = r1();
+ w2(4); w2(6); h = r1();
+ w2(4); w2(6); w2(4); w2(6); w2(4);
+ return j44(l,h);
+
+ case 1: w2(4); w2(0x26); r = r0();
+ w2(4); w2(0x26); w2(4);
+ return r;
+
+ }
+ return -1;
+}
+
+static void on20_write_regr( PIA *pi, int cont, int regr, int val )
+
+{ int r;
+
+ r = (regr<<2) + 1 + cont;
+
+ op(1); vl(r);
+ op(0); vl(val);
+ op(0); vl(val);
+}
+
+static void on20_connect ( PIA *pi)
+
+{ pi->saved_r0 = r0();
+ pi->saved_r2 = r2();
+
+ w2(4);w0(0);w2(0xc);w2(4);w2(6);w2(4);w2(6);w2(4);
+ if (pi->mode) { op(2); vl(8); op(2); vl(9); }
+ else { op(2); vl(0); op(2); vl(8); }
+}
+
+static void on20_disconnect ( PIA *pi )
+
+{ w2(4);w0(7);w2(4);w2(0xc);w2(4);
+ w0(pi->saved_r0);
+ w2(pi->saved_r2);
+}
+
+static void on20_read_block( PIA *pi, char * buf, int count )
+
+{ int k, l, h;
+
+ op(1); vl(1); op(0);
+
+ for (k=0;k<count;k++)
+ if (pi->mode) {
+ w2(4); w2(0x26); buf[k] = r0();
+ } else {
+ w2(6); l = r1(); w2(4);
+ w2(6); h = r1(); w2(4);
+ buf[k] = j44(l,h);
+ }
+ w2(4);
+}
+
+static void on20_write_block( PIA *pi, char * buf, int count )
+
+{ int k;
+
+ op(1); vl(1); op(0);
+
+ for (k=0;k<count;k++) { w2(5); w0(buf[k]); w2(7); }
+ w2(4);
+}
+
+static void on20_log_adapter( PIA *pi, char * scratch, int verbose )
+
+{ char *mode_string[2] = {"4-bit","8-bit"};
+
+ printk("%s: on20 %s, OnSpec 90c20 at 0x%x, ",
+ pi->device,ON20_VERSION,pi->port);
+ printk("mode %d (%s), delay %d\n",pi->mode,
+ mode_string[pi->mode],pi->delay);
+
+}
+
+static struct pi_protocol on20 = {
+ .owner = THIS_MODULE,
+ .name = "on20",
+ .max_mode = 2,
+ .epp_first = 2,
+ .default_delay = 1,
+ .max_units = 1,
+ .write_regr = on20_write_regr,
+ .read_regr = on20_read_regr,
+ .write_block = on20_write_block,
+ .read_block = on20_read_block,
+ .connect = on20_connect,
+ .disconnect = on20_disconnect,
+ .log_adapter = on20_log_adapter,
+};
+
+static int __init on20_init(void)
+{
+ return pi_register(&on20)-1;
+}
+
+static void __exit on20_exit(void)
+{
+ pi_unregister(&on20);
+}
+
+MODULE_LICENSE("GPL");
+module_init(on20_init)
+module_exit(on20_exit)