resource_34xx.h

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/*
 * linux/arch/arm/mach-omap3/resource.h
 *
 * Copyright (C) 2006-2007 Texas Instruments, Inc.
 * Rajendra Nayak <[e-mail]>
 *
 * 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 PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * History:
 *
 */

#define __ARCH_ARM_MACH_OMAP3_RESOURCE_H

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <asm/arch/resource.h>
#include <asm/arch/prcm.h>

/* Flags to denote Pool usage */
#define UNUSED			0x0
#define USED			0x1

#define curr_arm_freq 	500
#define curr_dsp_freq 	360
#define curr_vdd1_opp	3
#define curr_vdd2_opp	3
#define min_arm_freq 	125
#define max_arm_freq 	600
#define min_dsp_freq 	90
#define max_dsp_freq 	430
#define min_vdd1_opp 	CO_VDD1_OPP1
#define max_vdd1_opp 	CO_VDD1_OPP5
#define min_vdd2_opp 	CO_VDD2_OPP2
#define max_vdd2_opp 	CO_VDD2_OPP3

extern u32 current_vdd1_opp;
extern u32 current_vdd2_opp;
extern struct clk *p_vdd1_clk;
extern struct clk *p_vdd2_clk;

extern unsigned int vdd1_opp_setting(u32 target_opp_no);
extern unsigned int vdd2_opp_setting(u32 target_opp_no);
extern int prcm_set_memory_resource_on_state(unsigned short state);
int set_memory_resource_state(unsigned short);
/* Activation/Validation functions for various shared resources */
int activate_power_res(struct shared_resource *resp,
		       unsigned short current_level,
		       unsigned short target_level);
int activate_logical_res(struct shared_resource *resp,
			 unsigned short current_level,
			 unsigned short target_level);
int activate_memory_res(unsigned long prcm_id, unsigned short current_level,
			unsigned short target_level);
int activate_dpll_res(unsigned long prcm_id, unsigned short current_level,
			unsigned short target_level);
int validate_power_res(struct shared_resource *res,
			unsigned short current_level,
			unsigned short target_level);
int validate_logical_res(struct shared_resource *res,
			unsigned short current_level,
			unsigned short target_level);
int validate_memory_res(struct shared_resource *res,
			unsigned short current_level,
			unsigned short target_level);
int validate_dpll_res(struct shared_resource *res, unsigned short current_level,
			unsigned short target_level);
int activate_constraint(struct shared_resource *resp,
			unsigned short current_value,
			unsigned short target_value);
int activate_pd_constraint(struct shared_resource *resp,
			   unsigned short current_value,
			   unsigned short target_value);
int validate_constraint(struct shared_resource *res,
			unsigned short current_level,
			unsigned short target_level);

int activate_memory_logic(struct shared_resource *resp,
			 unsigned short current_level,
			 unsigned short target_level);
int validate_memory_logic(struct shared_resource *resp,
			 unsigned short current_level,
			 unsigned short target_level);

int activate_autoidle_resource(struct shared_resource *resp,
			unsigned short current_level,
			unsigned short target_level);
int validate_autoidle_resource(struct shared_resource *resp,
			unsigned short current_level,
			unsigned short target_level);
static struct shared_resource dss = {
	.name = "dss",
	.prcm_id = DOM_DSS,
	.res_type = RES_POWER_DOMAIN,
	.no_of_users = 0,
	.curr_level = POWER_DOMAIN_OFF,
	.max_levels = POWER_DOMAIN_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_power_res,
	.validate = validate_power_res,
};

static struct shared_resource cam = {
	.name = "cam",
	.prcm_id = DOM_CAM,
	.res_type = RES_POWER_DOMAIN,
	.no_of_users = 0,
	.curr_level = POWER_DOMAIN_OFF,
	.max_levels = POWER_DOMAIN_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_power_res,
	.validate = validate_power_res,
};

static struct shared_resource iva2 = {
	.name = "iva2",
	.prcm_id = DOM_IVA2,
	.res_type = RES_POWER_DOMAIN,
	.no_of_users = 0,
	.curr_level = POWER_DOMAIN_OFF,
	.max_levels = POWER_DOMAIN_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_power_res,
	.validate = validate_power_res,
};

static struct shared_resource sgx = {
	.name = "sgx",
	.prcm_id = DOM_SGX,
	.res_type = RES_POWER_DOMAIN,
	.no_of_users = 0,
	.curr_level = POWER_DOMAIN_OFF,
	.max_levels = POWER_DOMAIN_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_power_res,
	.validate = validate_power_res,
};

static struct shared_resource usbhost = {
	.name = "usb",
	.prcm_id = DOM_USBHOST,
	.res_type = RES_POWER_DOMAIN,
	.no_of_users = 0,
	.curr_level = POWER_DOMAIN_OFF,
	.max_levels = POWER_DOMAIN_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_power_res,
	.validate = validate_power_res,
};

static struct shared_resource per = {
	.name = "per",
	.prcm_id = DOM_PER,
	.res_type = RES_POWER_DOMAIN,
	.no_of_users = 0,
	.curr_level = POWER_DOMAIN_OFF,
	.max_levels = POWER_DOMAIN_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_power_res,
	.validate = validate_power_res,
};

static struct shared_resource neon  = {
	.name = "neon",
	.prcm_id = DOM_NEON,
	.res_type = RES_POWER_DOMAIN,
	.no_of_users = 0,
	.curr_level = POWER_DOMAIN_OFF,
	.max_levels = POWER_DOMAIN_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_power_res,
	.validate = validate_power_res,
};

static struct shared_resource core = {
	.name = "core",
	.prcm_id = DOM_CORE1,
	.res_type = RES_LOGICAL,
	.no_of_users = 0,
	.curr_level = LOGICAL_UNUSED,
	.max_levels = LOGICAL_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_logical_res,
	.validate = validate_logical_res,
};

/* Constraint resources */
static struct shared_resource latency = {
	.name = "latency",
	.prcm_id = RES_LATENCY_CO,
	.res_type = RES_LATENCY_CO,
	.no_of_users = 0,
	.curr_level = CO_UNUSED,
	.max_levels = CO_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_constraint,
	.validate = validate_constraint,
};

static struct shared_resource arm_freq = {
	.name = "arm_freq",
	.prcm_id = PRCM_ARMFREQ_CONSTRAINT,
	.res_type = RES_FREQ_CO,
	.no_of_users = 0,
	.curr_level = curr_arm_freq,
	.max_levels = CO_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_constraint,
	.validate = validate_constraint,
};

static struct shared_resource dsp_freq = {
	.name = "dsp_freq",
	.prcm_id = PRCM_DSPFREQ_CONSTRAINT,
	.res_type = RES_FREQ_CO,
	.no_of_users = 0,
	.curr_level = curr_dsp_freq,
	.max_levels = CO_MAXLEVEL,
	.linked_res_num = 0,
	.action = activate_constraint,
	.validate = validate_constraint,
};

static struct shared_resource vdd1_opp = {
	.name = "vdd1_opp",
	.prcm_id = PRCM_VDD1_CONSTRAINT,
	.res_type = RES_OPP_CO,
	.no_of_users = 0,
	.curr_level = curr_vdd1_opp,
	.max_levels = max_vdd1_opp+1,
	.linked_res_num = 0,
	.action = activate_constraint,
	.validate = validate_constraint,
};

static struct shared_resource vdd2_opp = {
	.name = "vdd2_opp",
	.prcm_id = PRCM_VDD2_CONSTRAINT,
	.res_type = RES_OPP_CO,
	.no_of_users = 0,
	.curr_level = curr_vdd2_opp,
	.max_levels = max_vdd2_opp+1,
	.linked_res_num = 0,
	.action = activate_constraint,
	.validate = validate_constraint,
};

static char *lat_dss_linked_res[] = {"dss",};

static struct shared_resource lat_dss = {
	.name = "lat_dss",
	.prcm_id = PRCM_DSS_CONSTRAINT,
	.res_type = RES_CLOCK_RAMPUP_CO,
	.no_of_users = 0,
	.curr_level = CO_UNUSED,
	.max_levels = CO_MAXLEVEL,
	.linked_res_num = sizeof(lat_dss_linked_res) /
			  sizeof(lat_dss_linked_res[0]),
	.linked_res_names = lat_dss_linked_res,
	.action = activate_pd_constraint,
	.validate = validate_constraint,
};

static char *lat_cam_linked_res[] = {"cam",};

static struct shared_resource lat_cam = {
	.name = "lat_cam",
	.prcm_id = PRCM_CAM_CONSTRAINT,
	.res_type = RES_CLOCK_RAMPUP_CO,
	.no_of_users = 0,
	.curr_level = CO_UNUSED,
	.max_levels = CO_MAXLEVEL,
	.linked_res_num = sizeof(lat_cam_linked_res) /
			  sizeof(lat_cam_linked_res[0]),
	.linked_res_names = lat_cam_linked_res,
	.action = activate_pd_constraint,
	.validate = validate_constraint,
};

static char *lat_iva2_linked_res[] = {"iva2",};

static struct shared_resource lat_iva2 = {
	.name = "lat_iva2",
	.prcm_id = PRCM_IVA2_CONSTRAINT,
	.res_type = RES_CLOCK_RAMPUP_CO,
	.no_of_users = 0,
	.curr_level = CO_UNUSED,
	.max_levels = CO_MAXLEVEL,
	.linked_res_num = sizeof(lat_iva2_linked_res) /
			  sizeof(lat_iva2_linked_res[0]),
	.linked_res_names = lat_iva2_linked_res,