From c29c3bf03eb853b823ccb354af4ace19b59f06a6 Mon Sep 17 00:00:00 2001 From: hans Date: Mon, 15 May 2017 13:48:06 +0800 Subject: [PATCH] 1. remove the unnecessary file tmp421.c Signed-off-by: hans --- .../modules/builds/tmp421.c | 309 ------------------ 1 file changed, 309 deletions(-) delete mode 100644 packages/platforms/delta/x86-64/x86-64-delta-agc7648a/modules/builds/tmp421.c diff --git a/packages/platforms/delta/x86-64/x86-64-delta-agc7648a/modules/builds/tmp421.c b/packages/platforms/delta/x86-64/x86-64-delta-agc7648a/modules/builds/tmp421.c deleted file mode 100644 index 7bab7a9b..00000000 --- a/packages/platforms/delta/x86-64/x86-64-delta-agc7648a/modules/builds/tmp421.c +++ /dev/null @@ -1,309 +0,0 @@ -/* tmp421.c - * - * Copyright (C) 2009 Andre Prendel - * Preliminary support by: - * Melvin Rook, Raymond Ng - * - * 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. - */ - -/* - * Driver for the Texas Instruments TMP421 SMBus temperature sensor IC. - * Supported models: TMP421, TMP422, TMP423 - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* Addresses to scan */ -static const unsigned short normal_i2c[] = { 0x2a, 0x4c, 0x4d, 0x4e, 0x4f, - I2C_CLIENT_END }; - -enum chips { tmp421, tmp422, tmp423 }; - -/* The TMP421 registers */ -#define TMP421_CONFIG_REG_1 0x09 -#define TMP421_CONVERSION_RATE_REG 0x0B -#define TMP421_MANUFACTURER_ID_REG 0xFE -#define TMP421_DEVICE_ID_REG 0xFF - -static const u8 TMP421_TEMP_MSB[4] = { 0x00, 0x01, 0x02, 0x03 }; -static const u8 TMP421_TEMP_LSB[4] = { 0x10, 0x11, 0x12, 0x13 }; - -/* Flags */ -#define TMP421_CONFIG_SHUTDOWN 0x40 -#define TMP421_CONFIG_RANGE 0x04 - -/* Manufacturer / Device ID's */ -#define TMP421_MANUFACTURER_ID 0x55 -#define TMP421_DEVICE_ID 0x21 -#define TMP422_DEVICE_ID 0x22 -#define TMP423_DEVICE_ID 0x23 - -static const struct i2c_device_id tmp421_id[] = { - { "tmp421", 2 }, - { "tmp422", 3 }, - { "tmp423", 4 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, tmp421_id); - -struct tmp421_data { - struct i2c_client *client; - struct mutex update_lock; - char valid; - unsigned long last_updated; - int channels; - u8 config; - s16 temp[4]; -}; - -static int temp_from_s16(s16 reg) -{ - /* Mask out status bits */ - int temp = reg & ~0xf; - - return (temp * 1000 + 128) / 256; -} - -static int temp_from_u16(u16 reg) -{ - /* Mask out status bits */ - int temp = reg & ~0xf; - - /* Add offset for extended temperature range. */ - temp -= 64 * 256; - - return (temp * 1000 + 128) / 256; -} - -static struct tmp421_data *tmp421_update_device(struct device *dev) -{ - struct tmp421_data *data = dev_get_drvdata(dev); - struct i2c_client *client = data->client; - int i; - - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) { - data->config = i2c_smbus_read_byte_data(client, - TMP421_CONFIG_REG_1); - - for (i = 0; i < data->channels; i++) { - data->temp[i] = i2c_smbus_read_byte_data(client, - TMP421_TEMP_MSB[i]) << 8; - data->temp[i] |= i2c_smbus_read_byte_data(client, - TMP421_TEMP_LSB[i]); - } - data->last_updated = jiffies; - data->valid = 1; - } - - mutex_unlock(&data->update_lock); - - return data; -} - -static ssize_t show_temp_value(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp421_data *data = tmp421_update_device(dev); - int temp; - - mutex_lock(&data->update_lock); - if (data->config & TMP421_CONFIG_RANGE) - temp = temp_from_u16(data->temp[index]); - else - temp = temp_from_s16(data->temp[index]); - mutex_unlock(&data->update_lock); - - return sprintf(buf, "%d\n", temp); -} - -static ssize_t show_fault(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp421_data *data = tmp421_update_device(dev); - - /* - * The OPEN bit signals a fault. This is bit 0 of the temperature - * register (low byte). - */ - if (data->temp[index] & 0x01) - return sprintf(buf, "1\n"); - else - return sprintf(buf, "0\n"); -} - -static umode_t tmp421_is_visible(struct kobject *kobj, struct attribute *a, - int n) -{ - struct device *dev = container_of(kobj, struct device, kobj); - struct tmp421_data *data = dev_get_drvdata(dev); - struct device_attribute *devattr; - unsigned int index; - - devattr = container_of(a, struct device_attribute, attr); - index = to_sensor_dev_attr(devattr)->index; - - if (index < data->channels) - return a->mode; - - return 0; -} - -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_value, NULL, 0); -static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_value, NULL, 1); -static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_fault, NULL, 1); -static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp_value, NULL, 2); -static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_fault, NULL, 2); -static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp_value, NULL, 3); -static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_fault, NULL, 3); - -static struct attribute *tmp421_attr[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - &sensor_dev_attr_temp3_input.dev_attr.attr, - &sensor_dev_attr_temp3_fault.dev_attr.attr, - &sensor_dev_attr_temp4_input.dev_attr.attr, - &sensor_dev_attr_temp4_fault.dev_attr.attr, - NULL -}; - -static const struct attribute_group tmp421_group = { - .attrs = tmp421_attr, - .is_visible = tmp421_is_visible, -}; - -static const struct attribute_group *tmp421_groups[] = { - &tmp421_group, - NULL -}; - -static int tmp421_init_client(struct i2c_client *client) -{ - int config, config_orig; - - /* Set the conversion rate to 2 Hz */ - i2c_smbus_write_byte_data(client, TMP421_CONVERSION_RATE_REG, 0x05); - - /* Start conversions (disable shutdown if necessary) */ - config = i2c_smbus_read_byte_data(client, TMP421_CONFIG_REG_1); - if (config < 0) { - dev_err(&client->dev, - "Could not read configuration register (%d)\n", config); - return config; - } - - config_orig = config; - config &= ~TMP421_CONFIG_SHUTDOWN; - - if (config != config_orig) { - dev_info(&client->dev, "Enable monitoring chip\n"); - i2c_smbus_write_byte_data(client, TMP421_CONFIG_REG_1, config); - } - - return 0; -} - -static int tmp421_detect(struct i2c_client *client, - struct i2c_board_info *info) -{ - enum chips kind; - struct i2c_adapter *adapter = client->adapter; - const char *names[] = { "TMP421", "TMP422", "TMP423" }; - u8 reg; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -ENODEV; - - reg = i2c_smbus_read_byte_data(client, TMP421_MANUFACTURER_ID_REG); - if (reg != TMP421_MANUFACTURER_ID) - return -ENODEV; - - reg = i2c_smbus_read_byte_data(client, TMP421_DEVICE_ID_REG); - switch (reg) { - case TMP421_DEVICE_ID: - kind = tmp421; - break; - case TMP422_DEVICE_ID: - kind = tmp422; - break; - case TMP423_DEVICE_ID: - kind = tmp423; - break; - default: - return -ENODEV; - } - - strlcpy(info->type, tmp421_id[kind].name, I2C_NAME_SIZE); - dev_info(&adapter->dev, "Detected TI %s chip at 0x%02x\n", - names[kind], client->addr); - - return 0; -} - -static int tmp421_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct device *dev = &client->dev; - struct device *hwmon_dev; - struct tmp421_data *data; - int err; - - data = devm_kzalloc(dev, sizeof(struct tmp421_data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - mutex_init(&data->update_lock); - data->channels = id->driver_data; - data->client = client; - - err = tmp421_init_client(client); - if (err) - return err; - - hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, - data, tmp421_groups); - return PTR_ERR_OR_ZERO(hwmon_dev); -} - -static struct i2c_driver tmp421_driver = { - .class = I2C_CLASS_HWMON, - .driver = { - .name = "tmp421", - }, - .probe = tmp421_probe, - .id_table = tmp421_id, - .detect = tmp421_detect, - .address_list = normal_i2c, -}; - -module_i2c_driver(tmp421_driver); - -MODULE_AUTHOR("Andre Prendel "); -MODULE_DESCRIPTION("Texas Instruments TMP421/422/423 temperature sensor driver"); -MODULE_LICENSE("GPL");