Added missing tegra files.HEADmaster

1 files changed, 264 insertions, 0 deletions

diff --git a/drivers/misc/inv_mpu/accel/kxsd9.c b/drivers/misc/inv_mpu/accel/kxsd9.c
new file mode 100644
index 00000000000..5cb4eaf6b4a
--- /dev/null
+++ b/drivers/misc/inv_mpu/accel/kxsd9.c
@@ -0,0 +1,264 @@
+/*
+        $License:
+        Copyright (C) 2011 InvenSense Corporation, All Rights Reserved.
+
+        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, see <http://www.gnu.org/licenses/>.
+        $
+ */
+
+/**
+ *  @addtogroup ACCELDL
+ *  @brief      Accelerometer setup and handling methods for Kionix KXSD9.
+ *
+ *  @{
+ *      @file   kxsd9.c
+ *      @brief  Accelerometer setup and handling methods for Kionix KXSD9.
+ */
+
+/* -------------------------------------------------------------------------- */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include "mpu-dev.h"
+
+#include <log.h>
+#include <linux/mpu.h>
+#include "mlsl.h"
+#include "mldl_cfg.h"
+#undef MPL_LOG_TAG
+#define MPL_LOG_TAG "MPL-acc"
+
+/* -------------------------------------------------------------------------- */
+
+static int kxsd9_suspend(void *mlsl_handle,
+                         struct ext_slave_descr *slave,
+                         struct ext_slave_platform_data *pdata)
+{
+        int result;
+        /* CTRL_REGB: low-power standby mode */
+        result =
+            inv_serial_single_write(mlsl_handle, pdata->address, 0x0d, 0x0);
+        if (result) {
+                LOG_RESULT_LOCATION(result);
+                return result;
+        }
+        return result;
+}
+
+/* full scale setting - register and mask */
+#define ACCEL_KIONIX_CTRL_REG      (0x0C)
+#define ACCEL_KIONIX_CTRL_MASK     (0x3)
+
+static int kxsd9_resume(void *mlsl_handle,
+                        struct ext_slave_descr *slave,
+                        struct ext_slave_platform_data *pdata)
+{
+        int result = INV_SUCCESS;
+        unsigned char reg;
+
+        /* Full Scale */
+        reg = 0x0;
+        reg &= ~ACCEL_KIONIX_CTRL_MASK;
+        reg |= 0x00;
+        if (slave->range.mantissa == 4) {               /* 4g scale = 4.9951 */
+                reg |= 0x2;
+                slave->range.fraction = 9951;
+        } else if (slave->range.mantissa == 7) {        /* 6g scale = 7.5018 */
+                reg |= 0x1;
+                slave->range.fraction = 5018;
+        } else if (slave->range.mantissa == 9) {        /* 8g scale = 9.9902 */
+                reg |= 0x0;
+                slave->range.fraction = 9902;
+        } else {
+                slave->range.mantissa = 2;              /* 2g scale = 2.5006 */
+                slave->range.fraction = 5006;
+                reg |= 0x3;
+        }
+        reg |= 0xC0;            /* 100Hz LPF */
+        result =
+            inv_serial_single_write(mlsl_handle, pdata->address,
+                                    ACCEL_KIONIX_CTRL_REG, reg);
+        if (result) {
+                LOG_RESULT_LOCATION(result);
+                return result;
+        }
+        /* normal operation */
+        result =
+            inv_serial_single_write(mlsl_handle, pdata->address, 0x0d, 0x40);
+        if (result) {
+                LOG_RESULT_LOCATION(result);
+                return result;
+        }
+
+        return INV_SUCCESS;
+}
+
+static int kxsd9_read(void *mlsl_handle,
+                      struct ext_slave_descr *slave,
+                      struct ext_slave_platform_data *pdata,
+                      unsigned char *data)
+{
+        int result;
+        result = inv_serial_read(mlsl_handle, pdata->address,
+                                 slave->read_reg, slave->read_len, data);
+        return result;
+}
+
+static struct ext_slave_descr kxsd9_descr = {
+        .init             = NULL,
+        .exit             = NULL,
+        .suspend          = kxsd9_suspend,
+        .resume           = kxsd9_resume,
+        .read             = kxsd9_read,
+        .config           = NULL,
+        .get_config       = NULL,
+        .name             = "kxsd9",
+        .type             = EXT_SLAVE_TYPE_ACCEL,
+        .id               = ACCEL_ID_KXSD9,
+        .read_reg         = 0x00,
+        .read_len         = 6,
+        .endian           = EXT_SLAVE_BIG_ENDIAN,
+        .range            = {2, 5006},
+        .trigger          = NULL,
+};
+
+static
+struct ext_slave_descr *kxsd9_get_slave_descr(void)
+{
+        return &kxsd9_descr;
+}
+
+/* -------------------------------------------------------------------------- */
+struct kxsd9_mod_private_data {
+        struct i2c_client *client;
+        struct ext_slave_platform_data *pdata;
+};
+
+static unsigned short normal_i2c[] = { I2C_CLIENT_END };
+
+static int kxsd9_mod_probe(struct i2c_client *client,
+                           const struct i2c_device_id *devid)
+{
+        struct ext_slave_platform_data *pdata;
+        struct kxsd9_mod_private_data *private_data;
+        int result = 0;
+
+        dev_info(&client->adapter->dev, "%s: %s\n", __func__, devid->name);
+
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+                result = -ENODEV;
+                goto out_no_free;
+        }
+
+        pdata = client->dev.platform_data;
+        if (!pdata) {
+                dev_err(&client->adapter->dev,
+                        "Missing platform data for slave %s\n", devid->name);
+                result = -EFAULT;
+                goto out_no_free;
+        }
+
+        private_data = kzalloc(sizeof(*private_data), GFP_KERNEL);
+        if (!private_data) {
+                result = -ENOMEM;
+                goto out_no_free;
+        }
+
+        i2c_set_clientdata(client, private_data);
+        private_data->client = client;
+        private_data->pdata = pdata;
+
+        result = inv_mpu_register_slave(THIS_MODULE, client, pdata,
+                                        kxsd9_get_slave_descr);
+        if (result) {
+                dev_err(&client->adapter->dev,
+                        "Slave registration failed: %s, %d\n",
+                        devid->name, result);
+                goto out_free_memory;
+        }
+
+        return result;
+
+out_free_memory:
+        kfree(private_data);
+out_no_free:
+        dev_err(&client->adapter->dev, "%s failed %d\n", __func__, result);
+        return result;
+
+}
+
+static int kxsd9_mod_remove(struct i2c_client *client)
+{
+        struct kxsd9_mod_private_data *private_data =
+                i2c_get_clientdata(client);
+
+        dev_dbg(&client->adapter->dev, "%s\n", __func__);
+
+        inv_mpu_unregister_slave(client, private_data->pdata,
+                                kxsd9_get_slave_descr);
+
+        kfree(private_data);
+        return 0;
+}
+
+static const struct i2c_device_id kxsd9_mod_id[] = {
+        { "kxsd9", ACCEL_ID_KXSD9 },
+        {}
+};
+
+MODULE_DEVICE_TABLE(i2c, kxsd9_mod_id);
+
+static struct i2c_driver kxsd9_mod_driver = {
+        .class = I2C_CLASS_HWMON,
+        .probe = kxsd9_mod_probe,
+        .remove = kxsd9_mod_remove,
+        .id_table = kxsd9_mod_id,
+        .driver = {
+                   .owner = THIS_MODULE,
+                   .name = "kxsd9_mod",
+                   },
+        .address_list = normal_i2c,
+};
+
+static int __init kxsd9_mod_init(void)
+{
+        int res = i2c_add_driver(&kxsd9_mod_driver);
+        pr_info("%s: Probe name %s\n", __func__, "kxsd9_mod");
+        if (res)
+                pr_err("%s failed\n", __func__);
+        return res;
+}
+
+static void __exit kxsd9_mod_exit(void)
+{
+        pr_info("%s\n", __func__);
+        i2c_del_driver(&kxsd9_mod_driver);
+}
+
+module_init(kxsd9_mod_init);
+module_exit(kxsd9_mod_exit);
+
+MODULE_AUTHOR("Invensense Corporation");
+MODULE_DESCRIPTION("Driver to integrate KXSD9 sensor with the MPU");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("kxsd9_mod");
+
+/**
+ *  @}
+ */