i2c-algo-sibyte: Merge into i2c-sibyte
authorJean Delvare <khali@linux-fr.org>
Sun, 13 Aug 2006 21:33:16 +0000 (23:33 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 26 Sep 2006 22:38:50 +0000 (15:38 -0700)
i2c-algo-sibyte: Merge into i2c-sibyte

Merge i2c-algo-sibyte into i2c-sibyte, as this is a complete,
hardware-dependent SMBus implementation and not a reusable algorithm.

Perform some basic coding style cleanups while we're here (mainly
space-based indentation replaced by tabulations.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/i2c/algos/Kconfig
drivers/i2c/algos/Makefile
drivers/i2c/algos/i2c-algo-sibyte.c [deleted file]
drivers/i2c/busses/i2c-sibyte.c
include/linux/i2c-algo-sibyte.h [deleted file]

index 30408015d231fa485157020b477f4ee892389eef..c034820615bb7ff8bdea1d161f3590b3cd6685a7 100644 (file)
@@ -53,12 +53,6 @@ config I2C_ALGO8XX
        tristate "MPC8xx CPM I2C interface"
        depends on 8xx && I2C
 
-config I2C_ALGO_SIBYTE
-       tristate "SiByte SMBus interface"
-       depends on SIBYTE_SB1xxx_SOC && I2C
-       help
-         Supports the SiByte SOC on-chip I2C interfaces (2 channels).
-
 config I2C_ALGO_SGI
        tristate "I2C SGI interfaces"
        depends on I2C && (SGI_IP22 || SGI_IP32 || X86_VISWS)
index 867fe1f67401c31f3cfabfa598894cdc59d8d70e..208be04a3dbdc6eb097e57a23ad4a4e7bc0d60ed 100644 (file)
@@ -6,7 +6,6 @@ obj-$(CONFIG_I2C_ALGOBIT)       += i2c-algo-bit.o
 obj-$(CONFIG_I2C_ALGOPCF)      += i2c-algo-pcf.o
 obj-$(CONFIG_I2C_ALGOPCA)      += i2c-algo-pca.o
 obj-$(CONFIG_I2C_ALGOITE)      += i2c-algo-ite.o
-obj-$(CONFIG_I2C_ALGO_SIBYTE)  += i2c-algo-sibyte.o
 obj-$(CONFIG_I2C_ALGO_SGI)     += i2c-algo-sgi.o
 
 ifeq ($(CONFIG_I2C_DEBUG_ALGO),y)
diff --git a/drivers/i2c/algos/i2c-algo-sibyte.c b/drivers/i2c/algos/i2c-algo-sibyte.c
deleted file mode 100644 (file)
index 16d666f..0000000
+++ /dev/null
@@ -1,186 +0,0 @@
-/* ------------------------------------------------------------------------- */
-/* i2c-algo-sibyte.c i2c driver algorithms for bit-shift adapters                   */
-/* ------------------------------------------------------------------------- */
-/*   Copyright (C) 2001,2002,2003 Broadcom Corporation
-     Copyright (C) 1995-2000 Simon G. Vogl
-
-    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.               */
-/* ------------------------------------------------------------------------- */
-
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
-   Frodo Looijaard <frodol@dds.nl>.  */
-
-/* Ported for SiByte SOCs by Broadcom Corporation.  */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/sibyte/sb1250_regs.h>
-#include <asm/sibyte/sb1250_smbus.h>
-
-#include <linux/i2c.h>
-#include <linux/i2c-algo-sibyte.h>
-
-/* ----- global defines ----------------------------------------------- */
-#define SMB_CSR(a,r) ((long)(a->reg_base + r))
-
-/* ----- global variables ---------------------------------------------        */
-
-/* module parameters:
- */
-static int bit_scan;   /* have a look at what's hanging 'round         */
-
-
-static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, 
-                      unsigned short flags, char read_write,
-                      u8 command, int size, union i2c_smbus_data * data)
-{
-       struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data;
-        int data_bytes = 0;
-        int error;
-
-        while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY)
-                ;
-
-        switch (size) {
-        case I2C_SMBUS_QUICK:
-                csr_out32((V_SMB_ADDR(addr) | (read_write == I2C_SMBUS_READ ? M_SMB_QDATA : 0) |
-                          V_SMB_TT_QUICKCMD), SMB_CSR(adap, R_SMB_START));
-                break;
-        case I2C_SMBUS_BYTE:
-                if (read_write == I2C_SMBUS_READ) {
-                        csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_RD1BYTE),
-                                 SMB_CSR(adap, R_SMB_START));
-                        data_bytes = 1;
-                } else {
-                        csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD));
-                        csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR1BYTE),
-                                 SMB_CSR(adap, R_SMB_START));
-                }
-                break;
-        case I2C_SMBUS_BYTE_DATA:
-                csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD));
-                if (read_write == I2C_SMBUS_READ) {
-                        csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD1BYTE),
-                                 SMB_CSR(adap, R_SMB_START));
-                        data_bytes = 1;
-                } else {
-                        csr_out32(V_SMB_LB(data->byte), SMB_CSR(adap, R_SMB_DATA));
-                        csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE),
-                                 SMB_CSR(adap, R_SMB_START));
-                }
-                break;
-        case I2C_SMBUS_WORD_DATA:
-                csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD));
-                if (read_write == I2C_SMBUS_READ) {
-                        csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD2BYTE),
-                                 SMB_CSR(adap, R_SMB_START));
-                        data_bytes = 2;
-                } else {
-                        csr_out32(V_SMB_LB(data->word & 0xff), SMB_CSR(adap, R_SMB_DATA));
-                        csr_out32(V_SMB_MB(data->word >> 8), SMB_CSR(adap, R_SMB_DATA));
-                        csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE),
-                                 SMB_CSR(adap, R_SMB_START));
-                }
-                break;
-        default:
-                return -1;      /* XXXKW better error code? */
-        }
-
-        while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY)
-                ;
-
-        error = csr_in32(SMB_CSR(adap, R_SMB_STATUS));
-        if (error & M_SMB_ERROR) {
-                /* Clear error bit by writing a 1 */
-                csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS));
-                return -1;      /* XXXKW better error code? */
-        }
-
-        if (data_bytes == 1)
-                data->byte = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xff;
-        if (data_bytes == 2)
-                data->word = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xffff;
-
-        return 0;
-}
-
-static u32 bit_func(struct i2c_adapter *adap)
-{
-       return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
-                I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA);
-}
-
-
-/* -----exported algorithm data: ------------------------------------- */
-
-static struct i2c_algorithm i2c_sibyte_algo = {
-       .smbus_xfer     = smbus_xfer,
-       .functionality  = bit_func,
-};
-
-/* 
- * registering functions to load algorithms at runtime 
- */
-int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed)
-{
-       int i;
-       struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data;
-
-       /* register new adapter to i2c module... */
-       i2c_adap->algo = &i2c_sibyte_algo;
-        
-        /* Set the frequency to 100 kHz */
-        csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ));
-        csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL));
-
-       /* scan bus */
-       if (bit_scan) {
-                union i2c_smbus_data data;
-                int rc;
-               printk(KERN_INFO " i2c-algo-sibyte.o: scanning bus %s.\n",
-                      i2c_adap->name);
-               for (i = 0x00; i < 0x7f; i++) {
-                        /* XXXKW is this a realistic probe? */
-                        rc = smbus_xfer(i2c_adap, i, 0, I2C_SMBUS_READ, 0,
-                                        I2C_SMBUS_BYTE_DATA, &data);
-                       if (!rc) {
-                               printk("(%02x)",i); 
-                       } else 
-                               printk("."); 
-               }
-               printk("\n");
-       }
-
-       return i2c_add_adapter(i2c_adap);
-}
-
-
-int i2c_sibyte_del_bus(struct i2c_adapter *adap)
-{
-       return i2c_del_adapter(adap);
-}
-
-
-EXPORT_SYMBOL(i2c_sibyte_add_bus);
-EXPORT_SYMBOL(i2c_sibyte_del_bus);
-
-MODULE_AUTHOR("Kip Walker, Broadcom Corp.");
-MODULE_DESCRIPTION("SiByte I2C-Bus algorithm");
-module_param(bit_scan, int, 0);
-MODULE_PARM_DESC(bit_scan, "Scan for active chips on the bus");
-MODULE_LICENSE("GPL");
index fa503ed9f86db6d8fb32899d817a9db78d6e60f7..f516eb7a23f72da592944c63883c0a7763fb6528 100644 (file)
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2004 Steven J. Hill
  * Copyright (C) 2001,2002,2003 Broadcom Corporation
+ * Copyright (C) 1995-2000 Simon G. Vogl
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
+#include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/i2c-algo-sibyte.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <asm/io.h>
 #include <asm/sibyte/sb1250_regs.h>
 #include <asm/sibyte/sb1250_smbus.h>
 
+
+struct i2c_algo_sibyte_data {
+       void *data;             /* private data */
+       int   bus;              /* which bus */
+       void *reg_base;         /* CSR base */
+};
+
+/* ----- global defines ----------------------------------------------- */
+#define SMB_CSR(a,r) ((long)(a->reg_base + r))
+
+/* ----- global variables --------------------------------------------- */
+
+/* module parameters:
+ */
+static int bit_scan;   /* have a look at what's hanging 'round */
+module_param(bit_scan, int, 0);
+MODULE_PARM_DESC(bit_scan, "Scan for active chips on the bus");
+
+
+static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr,
+                     unsigned short flags, char read_write,
+                     u8 command, int size, union i2c_smbus_data * data)
+{
+       struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data;
+       int data_bytes = 0;
+       int error;
+
+       while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY)
+               ;
+
+       switch (size) {
+       case I2C_SMBUS_QUICK:
+               csr_out32((V_SMB_ADDR(addr) |
+                          (read_write == I2C_SMBUS_READ ? M_SMB_QDATA : 0) |
+                          V_SMB_TT_QUICKCMD), SMB_CSR(adap, R_SMB_START));
+               break;
+       case I2C_SMBUS_BYTE:
+               if (read_write == I2C_SMBUS_READ) {
+                       csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_RD1BYTE),
+                                 SMB_CSR(adap, R_SMB_START));
+                       data_bytes = 1;
+               } else {
+                       csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD));
+                       csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR1BYTE),
+                                 SMB_CSR(adap, R_SMB_START));
+               }
+               break;
+       case I2C_SMBUS_BYTE_DATA:
+               csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD));
+               if (read_write == I2C_SMBUS_READ) {
+                       csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD1BYTE),
+                                 SMB_CSR(adap, R_SMB_START));
+                       data_bytes = 1;
+               } else {
+                       csr_out32(V_SMB_LB(data->byte),
+                                 SMB_CSR(adap, R_SMB_DATA));
+                       csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE),
+                                 SMB_CSR(adap, R_SMB_START));
+               }
+               break;
+       case I2C_SMBUS_WORD_DATA:
+               csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD));
+               if (read_write == I2C_SMBUS_READ) {
+                       csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD2BYTE),
+                                 SMB_CSR(adap, R_SMB_START));
+                       data_bytes = 2;
+               } else {
+                       csr_out32(V_SMB_LB(data->word & 0xff),
+                                 SMB_CSR(adap, R_SMB_DATA));
+                       csr_out32(V_SMB_MB(data->word >> 8),
+                                 SMB_CSR(adap, R_SMB_DATA));
+                       csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE),
+                                 SMB_CSR(adap, R_SMB_START));
+               }
+               break;
+       default:
+               return -1;      /* XXXKW better error code? */
+       }
+
+       while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY)
+               ;
+
+       error = csr_in32(SMB_CSR(adap, R_SMB_STATUS));
+       if (error & M_SMB_ERROR) {
+               /* Clear error bit by writing a 1 */
+               csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS));
+               return -1;      /* XXXKW better error code? */
+       }
+
+       if (data_bytes == 1)
+               data->byte = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xff;
+       if (data_bytes == 2)
+               data->word = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xffff;
+
+       return 0;
+}
+
+static u32 bit_func(struct i2c_adapter *adap)
+{
+       return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
+               I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA);
+}
+
+
+/* -----exported algorithm data: ------------------------------------- */
+
+static struct i2c_algorithm i2c_sibyte_algo = {
+       .smbus_xfer     = smbus_xfer,
+       .functionality  = bit_func,
+};
+
+/*
+ * registering functions to load algorithms at runtime
+ */
+int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed)
+{
+       int i;
+       struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data;
+
+       /* register new adapter to i2c module... */
+       i2c_adap->algo = &i2c_sibyte_algo;
+
+       /* Set the frequency to 100 kHz */
+       csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ));
+       csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL));
+
+       /* scan bus */
+       if (bit_scan) {
+               union i2c_smbus_data data;
+               int rc;
+               printk(KERN_INFO " i2c-algo-sibyte.o: scanning bus %s.\n",
+                      i2c_adap->name);
+               for (i = 0x00; i < 0x7f; i++) {
+                       /* XXXKW is this a realistic probe? */
+                       rc = smbus_xfer(i2c_adap, i, 0, I2C_SMBUS_READ, 0,
+                                       I2C_SMBUS_BYTE_DATA, &data);
+                       if (!rc) {
+                               printk("(%02x)",i);
+                       } else
+                               printk(".");
+               }
+               printk("\n");
+       }
+
+       return i2c_add_adapter(i2c_adap);
+}
+
+
 static struct i2c_algo_sibyte_data sibyte_board_data[2] = {
        { NULL, 0, (void *) (CKSEG1+A_SMB_BASE(0)) },
        { NULL, 1, (void *) (CKSEG1+A_SMB_BASE(1)) }
@@ -58,8 +210,8 @@ static int __init i2c_sibyte_init(void)
 
 static void __exit i2c_sibyte_exit(void)
 {
-       i2c_sibyte_del_bus(&sibyte_board_adapter[0]);
-       i2c_sibyte_del_bus(&sibyte_board_adapter[1]);
+       i2c_del_bus(&sibyte_board_adapter[0]);
+       i2c_del_bus(&sibyte_board_adapter[1]);
 }
 
 module_init(i2c_sibyte_init);
diff --git a/include/linux/i2c-algo-sibyte.h b/include/linux/i2c-algo-sibyte.h
deleted file mode 100644 (file)
index 03914de..0000000
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * 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.
- */
-
-#ifndef I2C_ALGO_SIBYTE_H
-#define I2C_ALGO_SIBYTE_H 1
-
-#include <linux/i2c.h>
-
-struct i2c_algo_sibyte_data {
-       void *data;             /* private data */
-        int   bus;             /* which bus */
-        void *reg_base;                /* CSR base */
-};
-
-int i2c_sibyte_add_bus(struct i2c_adapter *, int speed);
-int i2c_sibyte_del_bus(struct i2c_adapter *);
-
-#endif /* I2C_ALGO_SIBYTE_H */