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Diffstat (limited to 'arch/arm/mach-msm/mpp.c')
| -rw-r--r-- | arch/arm/mach-msm/mpp.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/mpp.c b/arch/arm/mach-msm/mpp.c new file mode 100644 index 000000000000..eb6f533d61d0 --- /dev/null +++ b/arch/arm/mach-msm/mpp.c @@ -0,0 +1,176 @@ +/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Code Aurora Forum nor + * the names of its contributors may be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * Alternatively, provided that this notice is retained in full, this software + * may be relicensed by the recipient under the terms of the GNU General Public + * License version 2 ("GPL") and only version 2, in which case the provisions of + * the GPL apply INSTEAD OF those given above. If the recipient relicenses the + * software under the GPL, then the identification text in the MODULE_LICENSE + * macro must be changed to reflect "GPLv2" instead of "Dual BSD/GPL". Once a + * recipient changes the license terms to the GPL, subsequent recipients shall + * not relicense under alternate licensing terms, including the BSD or dual + * BSD/GPL terms. In addition, the following license statement immediately + * below and between the words START and END shall also then apply when this + * software is relicensed under the GPL: + * + * START + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 and only version 2 as + * published by the Free Software Foundation. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * END + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + */ + +/* Qualcomm PMIC Multi-Purpose Pin Configurations */ + +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/init.h> +#include <linux/debugfs.h> + +#include <mach/mpp.h> + +#include "proc_comm.h" + +#define MPP(_name, _id, _is_input, _status) \ + { .name = _name, .id = _id, .is_input = _is_input, .status = _status} + +static struct mpp mpps[] = { + MPP("mpp1", 0, 0, 0), + MPP("mpp2", 1, 0, 0), + MPP("mpp3", 2, 0, 0), + MPP("mpp4", 3, 0, 0), + MPP("mpp5", 4, 0, 0), + MPP("mpp6", 5, 0, 0), + MPP("mpp7", 6, 0, 0), + MPP("mpp8", 7, 0, 0), + MPP("mpp9", 8, 0, 0), + MPP("mpp10", 9, 0, 0), + MPP("mpp11", 10, 0, 0), + MPP("mpp12", 11, 0, 0), + MPP("mpp13", 12, 0, 0), + MPP("mpp14", 13, 0, 0), + MPP("mpp15", 14, 0, 0), + MPP("mpp16", 15, 0, 0), + MPP("mpp17", 16, 0, 0), + MPP("mpp18", 17, 0, 0), + MPP("mpp19", 18, 0, 0), + MPP("mpp20", 19, 0, 0), + MPP("mpp21", 20, 0, 0), + MPP("mpp22", 21, 0, 0), +}; + +struct mpp *mpp_get(struct device *dev, const char *id) +{ + int n; + for (n = 0; n < ARRAY_SIZE(mpps); n++) { + if (!strcmp(mpps[n].name, id)) + return mpps + n; + } + return NULL; +} +EXPORT_SYMBOL(mpp_get); + +int mpp_config_digital_out(struct mpp *mpp, unsigned config) +{ + unsigned id = mpp->id; + int err; + err = msm_proc_comm(PCOM_PM_MPP_CONFIG, &id, &config); + mpp->status = err; + mpp->is_input = 0; + return err; +} +EXPORT_SYMBOL(mpp_config_digital_out); + +int mpp_config_digital_in(struct mpp *mpp, unsigned config) +{ + unsigned id = mpp->id; + int err; + err = msm_proc_comm(PCOM_PM_MPP_CONFIG_DIGITAL_INPUT, &id, &config); + mpp->status = err; + mpp->is_input = 1; + return err; +} +EXPORT_SYMBOL(mpp_config_digital_in); + +#if defined(CONFIG_DEBUG_FS) +static int mpp_debug_set(void *data, u64 val) +{ + int err; + struct mpp *mpp = data; + + err = mpp_config_digital_out(mpp, (unsigned)val); + if (err) { + printk(KERN_ERR + "%s: mpp_config_digital_out \ + [%s(%d) = 0x%x] failed\n", + __func__, mpp->name, mpp->id, (unsigned)val); + } + return 0; +} + +static int mpp_debug_get(void *data, u64 *val) +{ + struct mpp *mpp = data; + int status = mpp->status; + if (!status) + *val = 0; + else + *val = 1; + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(mpp_fops, mpp_debug_get, mpp_debug_set, "%llu\n"); + +static int __init mpp_debug_init(void) +{ + struct dentry *dent; + int n; + + dent = debugfs_create_dir("mpp", 0); + if (IS_ERR(dent)) + return 0; + + for (n = 0; n < ARRAY_SIZE(mpps); n++) + debugfs_create_file(mpps[n].name, 0644, dent, mpps + n, + &mpp_fops); + + return 0; +} + +device_initcall(mpp_debug_init); +#endif |