diff options
Diffstat (limited to 'arch/arm/mach-msm/msm_vibrator.c')
| -rw-r--r-- | arch/arm/mach-msm/msm_vibrator.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/msm_vibrator.c b/arch/arm/mach-msm/msm_vibrator.c new file mode 100644 index 000000000000..f4da4363aa98 --- /dev/null +++ b/arch/arm/mach-msm/msm_vibrator.c @@ -0,0 +1,137 @@ +/* include/asm/mach-msm/htc_pwrsink.h + * + * Copyright (C) 2008 HTC Corporation. + * Copyright (C) 2007 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/hrtimer.h> +#include <../../../drivers/staging/android/timed_output.h> +#include <linux/sched.h> + +#include <mach/msm_rpcrouter.h> + +#define PM_LIBPROG 0x30000061 +#if (CONFIG_MSM_AMSS_VERSION == 6220) || (CONFIG_MSM_AMSS_VERSION == 6225) +#define PM_LIBVERS 0xfb837d0b +#else +#define PM_LIBVERS 0x10001 +#endif + +#define HTC_PROCEDURE_SET_VIB_ON_OFF 21 +#define PMIC_VIBRATOR_LEVEL (3000) + +static struct work_struct work_vibrator_on; +static struct work_struct work_vibrator_off; +static struct hrtimer vibe_timer; + +static void set_pmic_vibrator(int on) +{ + static struct msm_rpc_endpoint *vib_endpoint; + struct set_vib_on_off_req { + struct rpc_request_hdr hdr; + uint32_t data; + } req; + + if (!vib_endpoint) { + vib_endpoint = msm_rpc_connect(PM_LIBPROG, PM_LIBVERS, 0); + if (IS_ERR(vib_endpoint)) { + printk(KERN_ERR "init vib rpc failed!\n"); + vib_endpoint = 0; + return; + } + } + + + if (on) + req.data = cpu_to_be32(PMIC_VIBRATOR_LEVEL); + else + req.data = cpu_to_be32(0); + + msm_rpc_call(vib_endpoint, HTC_PROCEDURE_SET_VIB_ON_OFF, &req, + sizeof(req), 5 * HZ); +} + +static void pmic_vibrator_on(struct work_struct *work) +{ + set_pmic_vibrator(1); +} + +static void pmic_vibrator_off(struct work_struct *work) +{ + set_pmic_vibrator(0); +} + +static void timed_vibrator_on(struct timed_output_dev *sdev) +{ + schedule_work(&work_vibrator_on); +} + +static void timed_vibrator_off(struct timed_output_dev *sdev) +{ + schedule_work(&work_vibrator_off); +} + +static void vibrator_enable(struct timed_output_dev *dev, int value) +{ + hrtimer_cancel(&vibe_timer); + + if (value == 0) + timed_vibrator_off(dev); + else { + value = (value > 15000 ? 15000 : value); + + timed_vibrator_on(dev); + + hrtimer_start(&vibe_timer, + ktime_set(value / 1000, (value % 1000) * 1000000), + HRTIMER_MODE_REL); + } +} + +static int vibrator_get_time(struct timed_output_dev *dev) +{ + if (hrtimer_active(&vibe_timer)) { + ktime_t r = hrtimer_get_remaining(&vibe_timer); + return r.tv.sec * 1000 + r.tv.nsec / 1000000; + } else + return 0; +} + +static enum hrtimer_restart vibrator_timer_func(struct hrtimer *timer) +{ + timed_vibrator_off(NULL); + return HRTIMER_NORESTART; +} + +static struct timed_output_dev pmic_vibrator = { + .name = "vibrator", + .get_time = vibrator_get_time, + .enable = vibrator_enable, +}; + +void __init msm_init_pmic_vibrator(void) +{ + INIT_WORK(&work_vibrator_on, pmic_vibrator_on); + INIT_WORK(&work_vibrator_off, pmic_vibrator_off); + + hrtimer_init(&vibe_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + vibe_timer.function = vibrator_timer_func; + + timed_output_dev_register(&pmic_vibrator); +} + +MODULE_DESCRIPTION("timed output pmic vibrator device"); +MODULE_LICENSE("GPL"); + |