diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-09-11 13:27:23 +0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-09-11 13:27:23 +0400 |
commit | 48c92022ad264cb8084cee78a499f183b264e45f (patch) | |
tree | 2d888fb2a7663d0d7130f1d82f231f335d757fcb /drivers/mfd/ucb1x00-assabet.c | |
parent | acb45439a89c6830349c02405f00a7208db0a66b (diff) | |
download | linux-48c92022ad264cb8084cee78a499f183b264e45f.tar.xz |
[MFD] Add code UCB1200/UCB1300 assabet platform support
Add support for Intel assabet specific board support for
UCB1200/UCB1300 devices.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mfd/ucb1x00-assabet.c')
-rw-r--r-- | drivers/mfd/ucb1x00-assabet.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/mfd/ucb1x00-assabet.c b/drivers/mfd/ucb1x00-assabet.c new file mode 100644 index 000000000000..e325fa71f38b --- /dev/null +++ b/drivers/mfd/ucb1x00-assabet.c @@ -0,0 +1,73 @@ +/* + * linux/drivers/mfd/ucb1x00-assabet.c + * + * Copyright (C) 2001-2003 Russell King, 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. + * + * We handle the machine-specific bits of the UCB1x00 driver here. + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/fs.h> +#include <linux/proc_fs.h> +#include <linux/device.h> + +#include <asm/dma.h> + +#include "ucb1x00.h" + +#define UCB1X00_ATTR(name,input)\ +static ssize_t name##_show(struct class_device *dev, char *buf) \ +{ \ + struct ucb1x00 *ucb = classdev_to_ucb1x00(dev); \ + int val; \ + ucb1x00_adc_enable(ucb); \ + val = ucb1x00_adc_read(ucb, input, UCB_NOSYNC); \ + ucb1x00_adc_disable(ucb); \ + return sprintf(buf, "%d\n", val); \ +} \ +static CLASS_DEVICE_ATTR(name,0444,name##_show,NULL) + +UCB1X00_ATTR(vbatt, UCB_ADC_INP_AD1); +UCB1X00_ATTR(vcharger, UCB_ADC_INP_AD0); +UCB1X00_ATTR(batt_temp, UCB_ADC_INP_AD2); + +static int ucb1x00_assabet_add(struct ucb1x00_dev *dev) +{ + class_device_create_file(&dev->ucb->cdev, &class_device_attr_vbatt); + class_device_create_file(&dev->ucb->cdev, &class_device_attr_vcharger); + class_device_create_file(&dev->ucb->cdev, &class_device_attr_batt_temp); + return 0; +} + +static void ucb1x00_assabet_remove(struct ucb1x00_dev *dev) +{ + class_device_remove_file(&dev->ucb->cdev, &class_device_attr_batt_temp); + class_device_remove_file(&dev->ucb->cdev, &class_device_attr_vcharger); + class_device_remove_file(&dev->ucb->cdev, &class_device_attr_vbatt); +} + +static struct ucb1x00_driver ucb1x00_assabet_driver = { + .add = ucb1x00_assabet_add, + .remove = ucb1x00_assabet_remove, +}; + +static int __init ucb1x00_assabet_init(void) +{ + return ucb1x00_register_driver(&ucb1x00_assabet_driver); +} + +static void __exit ucb1x00_assabet_exit(void) +{ + ucb1x00_unregister_driver(&ucb1x00_assabet_driver); +} + +module_init(ucb1x00_assabet_init); +module_exit(ucb1x00_assabet_exit); + +MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); +MODULE_DESCRIPTION("Assabet noddy testing only example ADC driver"); +MODULE_LICENSE("GPL"); |