/* * Copyright (c) 2012 The Linux Foundation. All rights reserved.* */ /* Copyright (c) 2010-2012, The Linux Foundation. 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 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. * */ #ifndef __ARCH_ARM_MACH_MSM_MPM_H #define __ARCH_ARM_MACH_MSM_MPM_H #include #include #define MSM_MPM_NR_MPM_IRQS 64 struct msm_mpm_device_data { uint16_t *irqs_m2a; unsigned int irqs_m2a_size; uint16_t *bypassed_apps_irqs; unsigned int bypassed_apps_irqs_size; void __iomem *mpm_request_reg_base; void __iomem *mpm_status_reg_base; void __iomem *mpm_apps_ipc_reg; unsigned int mpm_apps_ipc_val; unsigned int mpm_ipc_irq; }; extern struct msm_mpm_device_data msm8660_mpm_dev_data; extern struct msm_mpm_device_data msm8960_mpm_dev_data; extern struct msm_mpm_device_data apq8064_mpm_dev_data; extern struct msm_mpm_device_data ipq806x_mpm_dev_data; void msm_mpm_irq_extn_init(struct msm_mpm_device_data *mpm_data); #if defined(CONFIG_MSM_MPM) /** * msm_mpm_enable_pin() - Enable/Disable a MPM pin for idle wakeups. * * @pin: MPM pin to set * @enable: enable/disable the pin * * returns 0 on success or errorno * * Drivers can call the function to configure MPM pins for wakeup from idle low * power modes. The API provides a direct access to the configuring MPM pins * that are not connected to a IRQ/GPIO */ int msm_mpm_enable_pin(unsigned int pin, unsigned int enable); /** * msm_mpm_set_pin_wake() - Enable/Disable a MPM pin during suspend * * @pin: MPM pin to set * @enable: enable/disable the pin as wakeup * * returns 0 on success or errorno * * Drivers can call the function to configure MPM pins for wakeup from suspend * low power modes. The API provides a direct access to the configuring MPM pins * that are not connected to a IRQ/GPIO */ int msm_mpm_set_pin_wake(unsigned int pin, unsigned int on); /** * msm_mpm_set_pin_type() - Set the flowtype of a MPM pin. * * @pin: MPM pin to configure * @flow_type: flowtype of the MPM pin. * * returns 0 on success or errorno * * Drivers can call the function to configure the flowtype of the MPM pins * The API provides a direct access to the configuring MPM pins that are not * connected to a IRQ/GPIO */ int msm_mpm_set_pin_type(unsigned int pin, unsigned int flow_type); /** * msm_mpm_irqs_detectable() - Check if active irqs can be monitored by MPM * * @from_idle: indicates if the sytem is entering low power mode as a part of * suspend/idle task. * * returns true if all active interrupts can be monitored by the MPM * * Low power management code calls into this API to check if all active * interrupts can be monitored by MPM and choose a level such that all active * interrupts can wake the system up from low power mode. */ bool msm_mpm_irqs_detectable(bool from_idle); /** * msm_mpm_gpio_detectable() - Check if active gpio irqs can be monitored by * MPM * * @from_idle: indicates if the sytem is entering low power mode as a part of * suspend/idle task. * * returns true if all active GPIO interrupts can be monitored by the MPM * * Low power management code calls into this API to check if all active * GPIO interrupts can be monitored by MPM and choose a level such that all * active interrupts can wake the system up from low power mode. */ bool msm_mpm_gpio_irqs_detectable(bool from_idle); /** * msm_mpm_enter_sleep() -Called from PM code before entering low power mode * * @sclk_count: wakeup time in sclk counts for programmed RPM wakeup * @from_idle: indicates if the sytem is entering low power mode as a part of * suspend/idle task. * * Low power management code calls into this API to configure the MPM to * monitor the active irqs before going to sleep. */ void msm_mpm_enter_sleep(uint32_t sclk_count, bool from_idle); /** * msm_mpm_exit_sleep() -Called from PM code after resuming from low power mode * * @from_idle: indicates if the sytem is entering low power mode as a part of * suspend/idle task. * * Low power management code calls into this API to query the MPM for the * wakeup source and retriggering the appropriate interrupt. */ void msm_mpm_exit_sleep(bool from_idle); /** * of_mpm_init() - Device tree initialization function * * @node: MPM device tree node. * * The initialization function is called from the machine irq function after * GPIO/GIC device initialization routines are called. MPM driver keeps track * of all enabled/wakeup interrupts in the system to be able to configure MPM * when entering a system wide low power mode. The MPM is a alway-on low power * hardware block that monitors 64 wakeup interrupts when the system is in a * low power mode. The initialization function constructs the MPM mapping * between the IRQs and the MPM pin based on data in the device tree. */ void __init of_mpm_init(struct device_node *node); #else static inline int msm_mpm_enable_irq(unsigned int irq, unsigned int enable) { return -ENODEV; } static inline int msm_mpm_set_irq_wake(unsigned int irq, unsigned int on) { return -ENODEV; } static inline int msm_mpm_set_irq_type(unsigned int irq, unsigned int flow_type) { return -ENODEV; } static inline int msm_mpm_enable_pin(unsigned int pin, unsigned int enable) { return -ENODEV; } static inline int msm_mpm_set_pin_wake(unsigned int pin, unsigned int on) { return -ENODEV; } static inline int msm_mpm_set_pin_type(unsigned int pin, unsigned int flow_type) { return -ENODEV; } static inline bool msm_mpm_irqs_detectable(bool from_idle) { return false; } static inline bool msm_mpm_gpio_irqs_detectable(bool from_idle) { return false; } static inline void msm_mpm_enter_sleep(uint32_t sclk_count, bool from_idle) {} static inline void msm_mpm_exit_sleep(bool from_idle) {} static inline void __init of_mpm_init(struct device_node *node) {} #endif #endif /* __ARCH_ARM_MACH_MSM_MPM_H */