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-rw-r--r--drivers/i2c/busses/i2c-parport.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-parport.h b/drivers/i2c/busses/i2c-parport.h
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+++ b/drivers/i2c/busses/i2c-parport.h
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+/* ------------------------------------------------------------------------ *
+ * 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");