-Index: linux-2.6.27/drivers/i2c/chips/isl12024-eeprom.c
-===================================================================
---- /dev/null
-+++ linux-2.6.27/drivers/i2c/chips/isl12024-eeprom.c
-@@ -0,0 +1,254 @@
-+/*
-+ * Intersil ISL12024 EEPROM class driver
-+ *
-+ *
-+ * Copyright (C) 2007, CenoSYS (www.cenosys.com).
-+ * Guillaume Ligneul
-+ * Guillaume.ligneul@gmail.com
-+ *
-+ * Code is based on eeprom.c
-+ *
-+ * This software program is licensed subject to the GNU General Public License
-+ * (GPL).Version 2,June 1991, available at http://www.fsf.org/copyleft/gpl.html
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/module.h>
-+//#include <linux/slab.h>
-+//#include <linux/jiffies.h>
-+#include <linux/i2c.h>
-+#include <linux/mutex.h>
-+#include <linux/i2c/isl12024.h>
-+
-+/* Addresses to scan */
-+static const unsigned short normal_i2c[] = { ISL12024_I2C_EEPROM_ADDR, I2C_CLIENT_END };
-+
-+/* Insmod parameters */
-+I2C_CLIENT_INSMOD_1(eeprom);
-+
-+
-+/* Size of EEPROM in bytes */
-+#define EEPROM_SIZE 4096
-+
-+/* Each client has this additional data */
-+struct eeprom_data {
-+ struct i2c_client client;
-+ struct mutex update_lock;
-+};
-+
-+int
-+isl12024_i2c_read(struct i2c_client *client, u8 reg, u8 buf[],
-+ unsigned len)
-+{
-+ int ret;
-+ u8 dt_addr[2];
-+
-+ struct i2c_msg msgs[2] = {
-+ {
-+ .addr = client->addr,
-+ .flags = 0,
-+ .len = 2,
-+ .buf = dt_addr,
-+ },
-+ {
-+ .addr = client->addr,
-+ .flags = I2C_M_RD,
-+ .len = len ,
-+ .buf = buf ,
-+ },
-+ };
-+
-+ dt_addr[0] = 0;
-+ dt_addr[1] = reg;
-+
-+ ret = i2c_transfer(client->adapter, msgs, 2);
-+ if ( ret < 0) {
-+ dev_err(&client->dev, "read error\n");
-+ return -EIO;
-+ }
-+ return ret;
-+}
-+
-+
-+int
-+isl12024_i2c_write(struct i2c_client *client, u8 reg, u8 const buf[],
-+ unsigned len)
-+{
-+ int ret;
-+ u8 i2c_buf[EEPROM_SIZE];
-+
-+ struct i2c_msg msgs[1] = {
-+ {
-+ .addr = client->addr,
-+ .flags = 0,
-+ .len = len+2,
-+ .buf = i2c_buf,
-+ },
-+ };
-+
-+ i2c_buf[0] = 0;
-+ i2c_buf[1] = reg;
-+
-+
-+ memcpy(&i2c_buf[2], &buf[0], len );
-+
-+
-+ ret = i2c_transfer(client->adapter, msgs, 1);
-+ printk(KERN_INFO "i2c_transfer %d\n",ret);
-+ return ret;
-+}
-+static int eeprom_attach_adapter(struct i2c_adapter *adapter);
-+static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind);
-+static int eeprom_detach_client(struct i2c_client *client);
-+
-+/* This is the driver that will be inserted */
-+static struct i2c_driver eeprom_driver = {
-+ .driver = {
-+ .name = "isl12024-eeprom",
-+ },
-+ .attach_adapter = eeprom_attach_adapter,
-+ .detach_client = eeprom_detach_client,
-+};
-+
-+static ssize_t eeprom_read(struct kobject *kobj, struct bin_attribute *bin_attr,
-+ char *buf, loff_t off, size_t count)
-+{
-+ struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj));
-+ struct eeprom_data *data = i2c_get_clientdata(client);
-+ int rc;
-+
-+ mutex_lock(&data->update_lock);
-+
-+ if (off >= EEPROM_SIZE)
-+ return 0;
-+
-+ if (off + count > EEPROM_SIZE)
-+ count = EEPROM_SIZE - off;
-+
-+ rc = isl12024_i2c_read(client,0,buf,EEPROM_SIZE);
-+
-+ if (rc < 0){
-+ mutex_unlock(&data->update_lock);
-+ return -EIO;
-+ }
-+
-+ mutex_unlock(&data->update_lock);
-+ return count;
-+}
-+
-+static ssize_t eeprom_write(struct kobject *kobj, struct bin_attribute *attr,
-+ char *buf, loff_t off, size_t count)
-+{
-+ struct i2c_client *client = kobj_to_i2c_client(kobj);
-+ struct eeprom_data *data = i2c_get_clientdata(client);
-+
-+ if (off >= 256)
-+ return -ENOSPC;
-+
-+ if (off + count > 256)
-+ count = 256 - off;
-+
-+ mutex_unlock(&data->update_lock);
-+ if (isl12024_i2c_write(client, off, buf, count) < 0)
-+ {
-+ mutex_unlock(&data->update_lock);
-+ return -EIO;
-+ }
-+
-+ mutex_unlock(&data->update_lock);
-+ return count;
-+}
-+
-+static struct bin_attribute eeprom_attr = {
-+ .attr = {
-+ .name = "eeprom",
-+ .mode = S_IRUGO,
-+ },
-+ .size = EEPROM_SIZE,
-+ .read = eeprom_read,
-+ .write= eeprom_write,
-+};
-+
-+static int eeprom_attach_adapter(struct i2c_adapter *adapter)
-+{
-+ return i2c_probe(adapter, &addr_data, eeprom_detect);
-+}
-+
-+/* This function is called by i2c_probe */
-+static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind)
-+{
-+ struct i2c_client *new_client;
-+ struct eeprom_data *data;
-+ int err = 0;
-+
-+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA
-+ | I2C_FUNC_SMBUS_BYTE))
-+ goto exit;
-+
-+ if (!(data = kzalloc(sizeof(struct eeprom_data), GFP_KERNEL))) {
-+ err = -ENOMEM;
-+ goto exit;
-+ }
-+
-+ new_client = &data->client;
-+ i2c_set_clientdata(new_client, data);
-+ new_client->addr = address;
-+ new_client->adapter = adapter;
-+ new_client->driver = &eeprom_driver;
-+ new_client->flags = 0;
-+
-+ strlcpy(new_client->name, "isl12024-eeprom", I2C_NAME_SIZE);
-+ mutex_init(&data->update_lock);
-+
-+ /* Tell the I2C layer a new client has arrived */
-+ if ((err = i2c_attach_client(new_client)))
-+ goto exit_kfree;
-+
-+ /* create the sysfs eeprom file */
-+ err = sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr);
-+ if (err)
-+ goto exit_detach;
-+
-+ return 0;
-+
-+exit_detach:
-+ i2c_detach_client(new_client);
-+exit_kfree:
-+ kfree(data);
-+exit:
-+ return err;
-+}
-+
-+static int eeprom_detach_client(struct i2c_client *client)
-+{
-+ int err;
-+
-+ sysfs_remove_bin_file(&client->dev.kobj, &eeprom_attr);
-+
-+ err = i2c_detach_client(client);
-+ if (err)
-+ return err;
-+
-+ kfree(i2c_get_clientdata(client));
-+
-+ return 0;
-+}
-+
-+static int __init eeprom_init(void)
-+{
-+ return i2c_add_driver(&eeprom_driver);
-+}
-+
-+static void __exit eeprom_exit(void)
-+{
-+ i2c_del_driver(&eeprom_driver);
-+}
-+
-+
-+MODULE_AUTHOR("Guillaume Ligneul <guillaume.ligneul@cenosys.com>");
-+MODULE_DESCRIPTION("I2C Intersil12024 EEPROM driver");
-+MODULE_LICENSE("GPL");
-+
-+module_init(eeprom_init);
-+module_exit(eeprom_exit);
-Index: linux-2.6.27/drivers/i2c/chips/Kconfig
-===================================================================
---- linux-2.6.27.orig/drivers/i2c/chips/Kconfig
-+++ linux-2.6.27/drivers/i2c/chips/Kconfig
-@@ -40,6 +40,15 @@ config AT24
- This driver can also be built as a module. If so, the module
- will be called at24.
-
-+config ISL12024EEPROM
-+ tristate "Intersil 12024 EEPROM"
-+ depends on RTC_DRV_ISL12024
-+ help
-+ If you say yes here you get support for Intersil12024 EEPROM.
-+
-+ This driver can also be built as a module. If so, the module
-+ will be called isl12024-eeprom.
-+
- config SENSORS_EEPROM
- tristate "EEPROM reader"
- depends on EXPERIMENTAL
-Index: linux-2.6.27/drivers/i2c/chips/Makefile
-===================================================================
---- linux-2.6.27.orig/drivers/i2c/chips/Makefile
-+++ linux-2.6.27/drivers/i2c/chips/Makefile
-@@ -9,6 +9,8 @@
- # * I/O expander drivers go to drivers/gpio
- #
-
-+
-+obj-$(CONFIG_ISL12024EEPROM) += isl12024-eeprom.o
- obj-$(CONFIG_DS1682) += ds1682.o
- obj-$(CONFIG_AT24) += at24.o
- obj-$(CONFIG_SENSORS_EEPROM) += eeprom.o
Index: linux-2.6.27/drivers/rtc/Kconfig
===================================================================
--- linux-2.6.27.orig/drivers/rtc/Kconfig
===================================================================
--- /dev/null
+++ linux-2.6.27/drivers/rtc/rtc-isl12024.c
-@@ -0,0 +1,516 @@
+@@ -0,0 +1,517 @@
+/*
+ * Intersil ISL12024 class driver
+ *
+#include <linux/bcd.h>
+#include <linux/rtc.h>
+#include <linux/proc_fs.h>
-+#include <linux/i2c/isl12024.h>
+#include <linux/delay.h>
+
++#include "isl12024.h"
++
+
+#define DBG 1
+#undef DBG
+
+module_init(isl12024_init);
+module_exit(isl12024_exit);
-Index: linux-2.6.27/include/linux/i2c/isl12024.h
+Index: linux-2.6.27/drivers/i2c/chips/at24.c
+===================================================================
+--- linux-2.6.27.orig/drivers/i2c/chips/at24.c
++++ linux-2.6.27/drivers/i2c/chips/at24.c
+@@ -114,6 +114,8 @@ static const struct i2c_device_id at24_i
+ { "spd", AT24_DEVICE_MAGIC(2048 / 8,
+ AT24_FLAG_READONLY | AT24_FLAG_IRUGO) },
+ { "24c04", AT24_DEVICE_MAGIC(4096 / 8, 0) },
++ /* Intersil RTC/Unique-ID isl12024 eeprom handled here */
++ { "isl12024",AT24_DEVICE_MAGIC(4096 / 8, AT24_FLAG_ADDR16) },
+ /* 24rf08 quirk is handled at i2c-core */
+ { "24c08", AT24_DEVICE_MAGIC(8192 / 8, 0) },
+ { "24c16", AT24_DEVICE_MAGIC(16384 / 8, 0) },
+Index: linux-2.6.27/drivers/rtc/isl12024.h
===================================================================
--- /dev/null
-+++ linux-2.6.27/include/linux/i2c/isl12024.h
-@@ -0,0 +1,103 @@
++++ linux-2.6.27/drivers/rtc/isl12024.h
+@@ -0,0 +1,100 @@
+/*
+ * Intersil ISL12024 chip registers definitions
+ *
+#define ISL12024_HR_MIL 0x80 /* Set in ccr.hour for 24 hr mode */
+
+#define ISL12024_INT_AL0E 0x20 /* Alarm 0 enable */
++
+/* I2C ADDRESS */
+#define ISL12024_I2C_ADDR 0xDE
+#define ISL12024_I2C_EEPROM_ADDR 0x57
++
+/* device id section */
+#define ISL12024_REG_ID 0x20
++
+/* Register map */
+/* rtc section */
-+//#define ISL12024_REG_MSB 0x00
-+//#define ISL12024_REG_SC 0x30 /* Seconds */
-+//#define ISL12024_REG_MN 0x31 /* Minutes */
-+//#define ISL12024_REG_HR 0x32 /* Hours */
+#define ISL12024_REG_HR_MIL (1<<7) /* 24h/12h mode */
+#define ISL12024_REG_HR_PM (1<<5) /* PM/AM bit in 12h mode */
+//#define ISL12024_REG_DT 0x33 /* Date */
+//#define ISL12024_REG_Y2K 0x37
+#define ISL12024_RTC_SECTION_LEN 8
+
-+
-+
+/* control/status section */
+//#define ISL12024_REG_SR 0x3F
+//#define ISL12024_REG_SR_BAT (1<<7) /* battery */
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.27
-# Fri Jan 16 19:05:52 2009
+# Thu Feb 26 12:59:36 2009
#
# CONFIG_PPC64 is not set
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
-CONFIG_GENERIC_GPIO=y
# CONFIG_ARCH_NO_VIRT_TO_BUS is not set
CONFIG_PPC=y
CONFIG_EARLY_PRINTK=y
CONFIG_PPC_INDIRECT_PCI=y
CONFIG_FSL_SOC=y
CONFIG_FSL_PCI=y
-CONFIG_FSL_LBC=y
CONFIG_PPC_PCI_CHOICE=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
# CONFIG_MTD_NAND_PLATFORM is not set
# CONFIG_MTD_ALAUDA is not set
CONFIG_MTD_NAND_FSL_ELBC=y
-CONFIG_MTD_NAND_FSL_UPM=y
# CONFIG_MTD_ONENAND is not set
#
#
# CONFIG_MTD_UBI is not set
CONFIG_OF_DEVICE=y
-CONFIG_OF_GPIO=y
CONFIG_OF_I2C=y
CONFIG_OF_SPI=y
# CONFIG_PARPORT is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
-# CONFIG_I2C_GPIO is not set
CONFIG_I2C_MPC=y
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_SIMTEC is not set
#
# CONFIG_DS1682 is not set
CONFIG_AT24=y
-CONFIG_ISL12024EEPROM=y
# CONFIG_SENSORS_EEPROM is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_PCF8575 is not set
# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_PCF8591 is not set
-# CONFIG_TPS65010 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_I2C_DEBUG_CORE is not set
CONFIG_SPI_SPIDEV=y
# CONFIG_SPI_TLE62X0 is not set
CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
-CONFIG_GPIOLIB=y
-CONFIG_GPIO_SYSFS=y
-
-#
-# I2C GPIO expanders:
-#
-# CONFIG_GPIO_MAX732X is not set
-# CONFIG_GPIO_PCA953X is not set
-# CONFIG_GPIO_PCF857X is not set
-
-#
-# PCI GPIO expanders:
-#
-# CONFIG_GPIO_BT8XX is not set
-
-#
-# SPI GPIO expanders:
-#
-# CONFIG_GPIO_MAX7301 is not set
-# CONFIG_GPIO_MCP23S08 is not set
+# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_SUPPLY_DEBUG=y
# LED drivers
#
# CONFIG_LEDS_PCA9532 is not set
-# CONFIG_LEDS_GPIO is not set
# CONFIG_LEDS_PCA955X is not set
#
git.openpandora.org / openembedded.git / commitdiff