patch-2.4.22 linux-2.4.22/drivers/i2c/i2c-sibyte.c

• Lines: 115
• Date: 2003-08-25 04:44:41.000000000 -0700
• Orig file: linux-2.4.21/drivers/i2c/i2c-sibyte.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/drivers/i2c/i2c-sibyte.c linux-2.4.22/drivers/i2c/i2c-sibyte.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2001,2002,2003 Broadcom Corporation
+ *
+ * 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.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <asm/sibyte/sb1250_regs.h>
+#include <asm/sibyte/sb1250_smbus.h>
+
+#include <linux/i2c.h>
+#include <linux/i2c-algo-sibyte.h>
+
+static int sibyte_reg(struct i2c_client *client)
+{
+	return 0;
+}
+
+static int sibyte_unreg(struct i2c_client *client)
+{
+	return 0;
+}
+
+static void sibyte_inc_use(struct i2c_adapter *adap)
+{
+#ifdef MODULE
+	MOD_INC_USE_COUNT;
+#endif
+}
+
+static void sibyte_dec_use(struct i2c_adapter *adap)
+{
+#ifdef MODULE
+	MOD_DEC_USE_COUNT;
+#endif
+}
+
+static struct i2c_algo_sibyte_data sibyte_board_data[2] = {
+        { NULL, 0, (void *)(KSEG1+A_SMB_BASE(0)) },
+        { NULL, 1, (void *)(KSEG1+A_SMB_BASE(1)) }
+};
+
+static struct i2c_adapter sibyte_board_adapter[2] = {
+        {
+                name:              "SiByte SMBus 0",
+                id:                I2C_HW_SIBYTE,
+                algo:              NULL,
+                algo_data:         &sibyte_board_data[0],
+                inc_use:           sibyte_inc_use,
+                dec_use:           sibyte_dec_use,
+                client_register:   sibyte_reg,
+                client_unregister: sibyte_unreg,
+		client_count:      0
+        } , 
+        {
+                name:              "SiByte SMBus 1",
+                id:                I2C_HW_SIBYTE,
+                algo:              NULL,
+                algo_data:         &sibyte_board_data[1],
+                inc_use:           sibyte_inc_use,
+                dec_use:           sibyte_dec_use,
+                client_register:   sibyte_reg,
+                client_unregister: sibyte_unreg,
+		client_count:      0
+        }
+};
+
+int __init i2c_sibyte_init(void)
+{
+	printk("i2c-swarm.o: i2c SMBus adapter module for SiByte board\n");
+        if (i2c_sibyte_add_bus(&sibyte_board_adapter[0], K_SMB_FREQ_100KHZ) < 0)
+                return -ENODEV;
+        if (i2c_sibyte_add_bus(&sibyte_board_adapter[1], K_SMB_FREQ_400KHZ) < 0)
+                return -ENODEV;
+	return 0;
+}
+
+
+EXPORT_NO_SYMBOLS;
+
+#ifdef MODULE
+MODULE_AUTHOR("Kip Walker, Broadcom Corp.");
+MODULE_DESCRIPTION("SMBus adapter routines for SiByte boards");
+MODULE_LICENSE("GPL");
+
+int init_module(void)
+{
+	return i2c_sibyte_init();
+}
+
+void cleanup_module(void)
+{
+	i2c_sibyte_del_bus(&sibyte_board_adapter[0]);
+	i2c_sibyte_del_bus(&sibyte_board_adapter[1]);
+}
+
+#endif