1 files changed, 94 insertions, 0 deletions

diff --git a/drivers/i2c/busses/i2c-parport.h b/drivers/i2c/busses/i2c-parport.h
new file mode 100644
index 000000000000..f63a53779281
--- /dev/null
+++ b/drivers/i2c/busses/i2c-parport.h
@@ -0,0 +1,94 @@
+/* ------------------------------------------------------------------------ *
+ * i2c-parport.h I2C bus over parallel port                                 *
+ * ------------------------------------------------------------------------ *
+   Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
+   
+   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * ------------------------------------------------------------------------ */
+
+#ifdef DATA
+#undef DATA
+#endif
+
+#define DATA    0
+#define STAT    1
+#define CTRL    2
+
+struct lineop {
+        u8 val;
+        u8 port;
+        u8 inverted;
+};
+
+struct adapter_parm {
+        struct lineop setsda;
+        struct lineop setscl;
+        struct lineop getsda;
+        struct lineop getscl;
+        struct lineop init;
+};
+
+static struct adapter_parm adapter_parm[] = {
+        /* type 0: Philips adapter */
+        {
+                .setsda = { 0x80, DATA, 1 },
+                .setscl = { 0x08, CTRL, 0 },
+                .getsda = { 0x80, STAT, 0 },
+                .getscl = { 0x08, STAT, 0 },
+        },
+        /* type 1: home brew teletext adapter */
+        {
+                .setsda = { 0x02, DATA, 0 },
+                .setscl = { 0x01, DATA, 0 },
+                .getsda = { 0x80, STAT, 1 },
+        },
+        /* type 2: Velleman K8000 adapter */
+        {
+                .setsda = { 0x02, CTRL, 1 },
+                .setscl = { 0x08, CTRL, 1 },
+                .getsda = { 0x10, STAT, 0 },
+        },
+        /* type 3: ELV adapter */
+        {
+                .setsda = { 0x02, DATA, 1 },
+                .setscl = { 0x01, DATA, 1 },
+                .getsda = { 0x40, STAT, 1 },
+                .getscl = { 0x08, STAT, 1 },
+        },
+        /* type 4: ADM1032 evaluation board */
+        {
+                .setsda = { 0x02, DATA, 1 },
+                .setscl = { 0x01, DATA, 1 },
+                .getsda = { 0x10, STAT, 1 },
+                .init   = { 0xf0, DATA, 0 },
+        },
+        /* type 5: ADM1025, ADM1030 and ADM1031 evaluation boards */
+        {
+                .setsda = { 0x02, DATA, 1 },
+                .setscl = { 0x01, DATA, 1 },
+                .getsda = { 0x10, STAT, 1 },
+        },
+};
+
+static int type;
+module_param(type, int, 0);
+MODULE_PARM_DESC(type,
+        "Type of adapter:\n"
+        " 0 = Philips adapter\n"
+        " 1 = home brew teletext adapter\n"
+        " 2 = Velleman K8000 adapter\n"
+        " 3 = ELV adapter\n"
+        " 4 = ADM1032 evaluation board\n"
+        " 5 = ADM1025, ADM1030 and ADM1031 evaluation boards\n");