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/*
* OMAP IPU_PM driver
*
* Copyright (C) 2010 Texas Instruments Inc.
*
* Written by Paul Hunt <hunt@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* 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 St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef IPU_PM_H
#define IPU_PM_H
#include <linux/ioctl.h>
#include <linux/cdev.h>
#include "../../../drivers/dsp/syslink/ipu_pm/ipu_pm.h"
#define IPU_PM_IOC_MAGIC (0xDB)
/* magic char is irrelevant until trying to upstream
* except for reducing exposure to misdirected ioctls
* see Documentation/ioctl/ioctl-number.txt
*/
#define IPU_PM_IOC_SUSPEND _IOW(IPU_PM_IOC_MAGIC, 0, int)
#define IPU_PM_IOC_RESUME _IOW(IPU_PM_IOC_MAGIC, 1, int)
#define IPU_PM_IOC_MAXNR 3
#define IPUPM_CAPS_START_BIT 0
#define IPUPM_CAPS_STOP_BIT 1
#define IPUPM_CAPS_PERF_BIT 2
#define IPUPM_CAPS_LAT_BIT 3
#define IPUPM_CAPS_BDW_BIT 4
/* omap_device built elsewhere */
#define IPUPM_CAPS_EXTINIT_BIT 5
#define IPUPM_CAPS_START (1 << IPUPM_CAPS_START_BIT)
#define IPUPM_CAPS_STOP (1 << IPUPM_CAPS_STOP_BIT)
#define IPUPM_CAPS_PERF (1 << IPUPM_CAPS_PERF_BIT)
#define IPUPM_CAPS_LAT (1 << IPUPM_CAPS_LAT_BIT)
#define IPUPM_CAPS_BDW (1 << IPUPM_CAPS_BDW_BIT)
#define IPUPM_CAPS_EXTINIT (1 << IPUPM_CAPS_EXTINIT_BIT)
#define IPU_PM_SELF 100
#define IPU_PM_MPU 101
#define IPU_PM_CORE 102
struct omap_ipupm_mod;
struct omap_ipupm_mod_ops {
int (*start)(enum res_type ipupm_modnum);
int (*stop)(enum res_type ipupm_modnum);
};
struct omap_ipupm_mod_platform_data {
struct platform_device *pdev;
struct device *dev;
char *name;
char *oh_name;
struct omap_hwmod *oh;
struct kobject kobj;
u32 caps;
struct pm_qos_request_list *qos_request;
struct omap_ipupm_mod_ops *ops;
};
struct omap_ipupm_mod {
struct device *dev;
struct cdev cdev;
atomic_t count;
int state;
int minor;
};
struct ipu_pm_dev {
/* FIXME: maybe more is needed */
struct cdev cdev;
};
extern int ipu_pm_first_dev;
extern int ipu_pm_module_start(unsigned rsrc);
extern int ipu_pm_module_stop(unsigned rsrc);
extern int ipu_pm_module_set_rate(unsigned rsrc,
unsigned target_rsrc,
unsigned rate);
extern int ipu_pm_module_set_latency(unsigned rsrc,
unsigned target_rsrc,
int latency);
extern int ipu_pm_module_set_bandwidth(unsigned rsrc,
unsigned target_rsrc,
int bandwidth);
#endif /* IPU_PM_H */
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