97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/* Copyright (c) 2008-2009, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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/* Qualcomm PMIC Multi-Purpose Pin Configurations */
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/debugfs.h>
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#include <linux/module.h>
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#include <mach/mpp.h>
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#include <mach/proc_comm.h>
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int mpp_config_digital_out(unsigned mpp, unsigned config)
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{
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int err;
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err = msm_proc_comm(PCOM_PM_MPP_CONFIG, &mpp, &config);
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if (err)
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pr_err("%s: msm_proc_comm(PCOM_PM_MPP_CONFIG) failed\n",
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__func__);
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return err;
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}
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EXPORT_SYMBOL(mpp_config_digital_out);
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int mpp_config_digital_in(unsigned mpp, unsigned config)
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{
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int err;
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err = msm_proc_comm(PCOM_PM_MPP_CONFIG_DIGITAL_INPUT, &mpp, &config);
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if (err)
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pr_err("%s: msm_proc_comm(PCOM_PM_MPP_CONFIG) failed\n",
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__func__);
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return err;
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}
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EXPORT_SYMBOL(mpp_config_digital_in);
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#if defined(CONFIG_DEBUG_FS)
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static int test_result;
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static int mpp_debug_set(void *data, u64 val)
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{
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unsigned mpp = (unsigned) data;
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test_result = mpp_config_digital_out(mpp, (unsigned)val);
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if (test_result) {
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printk(KERN_ERR
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"%s: mpp_config_digital_out \
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[mpp(%d) = 0x%x] failed (err=%d)\n",
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__func__, mpp, (unsigned)val, test_result);
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}
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return 0;
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}
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static int mpp_debug_get(void *data, u64 *val)
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{
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if (!test_result)
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*val = 0;
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else
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*val = 1;
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return 0;
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}
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DEFINE_SIMPLE_ATTRIBUTE(mpp_fops, mpp_debug_get, mpp_debug_set, "%llu\n");
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static int __init mpp_debug_init(void)
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{
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struct dentry *dent;
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int n;
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char file_name[16];
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dent = debugfs_create_dir("mpp", 0);
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if (IS_ERR(dent))
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return 0;
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for (n = 0; n < MPPS; n++) {
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snprintf(file_name, sizeof(file_name), "mpp%d", n + 1);
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debugfs_create_file(file_name, 0644, dent,
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(void *)n, &mpp_fops);
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}
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return 0;
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}
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device_initcall(mpp_debug_init);
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#endif
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