125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/* include/asm/mach-msm/htc_pwrsink.h
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*
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* Copyright (C) 2008 HTC Corporation.
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* Copyright (C) 2007 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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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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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/err.h>
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#include <linux/hrtimer.h>
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#include <../../../drivers/staging/android/timed_output.h>
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#include <linux/sched.h>
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#include <mach/msm_rpcrouter.h>
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#include <mach/msm_rpc_version.h>
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#define PM_LIBPROG 0x30000061
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#define PMIC_VIBRATOR_LEVEL (3000)
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static struct work_struct vibrator_work;
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static struct hrtimer vibe_timer;
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static spinlock_t vibe_lock;
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static int vibe_state;
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static void set_pmic_vibrator(int on)
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{
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static struct msm_rpc_endpoint *vib_endpoint;
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struct set_vib_on_off_req {
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struct rpc_request_hdr hdr;
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uint32_t data;
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} req;
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if (!vib_endpoint) {
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vib_endpoint = msm_rpc_connect(PM_LIBPROG, PM_LIBVERS, 0);
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if (IS_ERR(vib_endpoint)) {
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printk(KERN_ERR "init vib rpc failed!\n");
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vib_endpoint = 0;
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return;
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}
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}
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if (on)
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req.data = cpu_to_be32(PMIC_VIBRATOR_LEVEL);
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else
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req.data = cpu_to_be32(0);
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msm_rpc_call(vib_endpoint, HTC_PROCEDURE_SET_VIB_ON_OFF, &req,
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sizeof(req), 5 * HZ);
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}
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static void update_vibrator(struct work_struct *work)
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{
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set_pmic_vibrator(vibe_state);
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}
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static void vibrator_enable(struct timed_output_dev *dev, int value)
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{
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unsigned long flags;
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spin_lock_irqsave(&vibe_lock, flags);
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hrtimer_cancel(&vibe_timer);
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if (value == 0)
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vibe_state = 0;
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else {
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printk(KERN_INFO "%s(parent:%s): vibrates %d msec\n",
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current->comm, current->parent->comm, value);
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value = (value > 15000 ? 15000 : value);
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vibe_state = 1;
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hrtimer_start(&vibe_timer,
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ktime_set(value / 1000, (value % 1000) * 1000000),
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HRTIMER_MODE_REL);
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}
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spin_unlock_irqrestore(&vibe_lock, flags);
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schedule_work(&vibrator_work);
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}
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static int vibrator_get_time(struct timed_output_dev *dev)
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{
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if (hrtimer_active(&vibe_timer)) {
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ktime_t r = hrtimer_get_remaining(&vibe_timer);
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return r.tv.sec * 1000 + r.tv.nsec / 1000000;
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} else
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return 0;
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}
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static enum hrtimer_restart vibrator_timer_func(struct hrtimer *timer)
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{
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vibe_state = 0;
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schedule_work(&vibrator_work);
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return HRTIMER_NORESTART;
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}
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static struct timed_output_dev pmic_vibrator = {
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.name = "vibrator",
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.get_time = vibrator_get_time,
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.enable = vibrator_enable,
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};
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void __init msm_init_pmic_vibrator(void)
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{
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INIT_WORK(&vibrator_work, update_vibrator);
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spin_lock_init(&vibe_lock);
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vibe_state = 0;
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hrtimer_init(&vibe_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
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vibe_timer.function = vibrator_timer_func;
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timed_output_dev_register(&pmic_vibrator);
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}
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MODULE_DESCRIPTION("timed output pmic vibrator device");
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MODULE_LICENSE("GPL");
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