623 lines
17 KiB
C
Executable file
623 lines
17 KiB
C
Executable file
/*
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* drivers/arisc/interfaces/arisc_standby.c
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*
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* Copyright (c) 2012 Allwinner.
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* 2012-05-01 Written by sunny (sunny@allwinnertech.com).
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* 2012-10-01 Written by superm (superm@allwinnertech.com).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "../arisc_i.h"
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#include <asm/tlbflush.h>
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#include <asm/cacheflush.h>
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#include <linux/sys_config.h>
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/* record super-standby wakeup event */
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static unsigned long dram_crc_error = 0;
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static unsigned long dram_crc_total_count = 0;
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static unsigned long dram_crc_error_count = 0;
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#ifdef CONFIG_SUNXI_ARISC_COM_DIRECTLY
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static unsigned long wakeup_event;
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/*
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* enter cpu idle.
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* @para: parameter for enter cpu idle.
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* para->flag: 0x01-clear pending, 0x10-enter cpuidle
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* para->resume_addr: the address cpu0 will run when exit idle
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*
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* return: result, 0 - super standby successed,
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* !0 - super standby failed;
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*/
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int arisc_enter_cpuidle(arisc_cb_t cb, void *cb_arg, struct sunxi_enter_idle_para *para)
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{
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struct arisc_message *pmessage; /* allocate a message frame */
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pmessage = arisc_message_allocate(0);
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if (pmessage == NULL) {
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ARISC_ERR("allocate message for cpuidle request failed\n");
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return -ENOMEM;
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}
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/* initialize message */
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pmessage->type = ARISC_CPUIDLE_ENTER_REQ;
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pmessage->cb.handler = cb;
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pmessage->cb.arg = cb_arg;
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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pmessage->paras[0] = para->flags;
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pmessage->paras[1] = (unsigned long)(para->resume_addr);
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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return 0;
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}
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EXPORT_SYMBOL(arisc_enter_cpuidle);
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int arisc_config_cpuidle(arisc_cb_t cb, void *cb_arg, struct sunxi_enter_idle_para *para)
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{
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int result = 0;
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struct arisc_message *pmessage;
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/* allocate a message frame */
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pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
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if (pmessage == NULL) {
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ARISC_WRN("allocate message failed\n");
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return -ENOMEM;
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}
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/* initialize message */
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pmessage->type = ARISC_CPUIDLE_CFG_REQ;
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pmessage->cb.handler = cb;
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pmessage->cb.arg = cb_arg;
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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pmessage->paras[0] = para->flags;
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pmessage->paras[1] = (unsigned long)(para->resume_addr);
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/* send request message */
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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if (pmessage->result) {
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ARISC_WRN("config cpuidle fail!\n");
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result = -EINVAL;
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}
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/* free allocated message */
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arisc_message_free(pmessage);
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return result;
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}
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EXPORT_SYMBOL(arisc_config_cpuidle);
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/**
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* enter super standby.
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* @para: parameter for enter normal standby.
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*
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* return: result, 0 - super standby successed,
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* !0 - super standby failed;
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*/
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int arisc_standby_super(struct super_standby_para *para, arisc_cb_t cb, void *cb_arg)
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{
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struct arisc_message *pmessage;
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/* allocate a message frame */
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pmessage = arisc_message_allocate(0);
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if (pmessage == NULL) {
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ARISC_ERR("allocate message for super-standby request failed\n");
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return -ENOMEM;
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}
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/* check super_standby_para size valid or not */
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if (sizeof(struct super_standby_para) > sizeof(pmessage->paras)) {
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ARISC_ERR("super-standby parameters number too long\n");
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return -EINVAL;
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}
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/* initialize message */
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if (para->pextended_standby == 0)
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pmessage->type = ARISC_SSTANDBY_ENTER_REQ;
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else
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pmessage->type = ARISC_ESSTANDBY_ENTER_REQ;
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pmessage->cb.handler = cb;
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pmessage->cb.arg = cb_arg;
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memcpy((void *)pmessage->paras, (const void *)para, sizeof(struct super_standby_para));
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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/* send enter super-standby request to arisc */
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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return 0;
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}
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EXPORT_SYMBOL(arisc_standby_super);
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/**
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* query super-standby wakeup source.
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* @para: point of buffer to store wakeup event informations.
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*
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* return: result, 0 - query successed,
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* !0 - query failed;
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*/
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int arisc_query_wakeup_source(unsigned int *event)
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{
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*event = wakeup_event;
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return 0;
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}
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EXPORT_SYMBOL(arisc_query_wakeup_source);
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/**
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* clear super-standby wakeup source.
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*
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* return: result, 0 - clear successed,
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* !0 - clear failed;
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*/
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int arisc_clear_wakeup_source(void)
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{
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wakeup_event = 0;
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return 0;
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}
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EXPORT_SYMBOL(arisc_clear_wakeup_source);
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/*
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* query super-standby infoation.
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* @para: point of array to store power states informations during sst.
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* @op: 0:read, 1:set
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*
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* return: result, 0 - query successed,
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* !0 - query failed;
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*/
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int arisc_query_standby_power_cfg(struct standby_info_para *para)
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{
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memcpy((void *)para, (void *)&arisc_powchk_back, sizeof(struct standby_info_para));
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return 0;
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}
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EXPORT_SYMBOL(arisc_query_standby_power_cfg);
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/*
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* query super-standby infoation.
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* @para: point of array to store power states informations during sst.
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* @op: 0:read, 1:set
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*
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* return: result, 0 - query successed,
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* !0 - query failed;
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*/
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int arisc_query_set_standby_info(struct standby_info_para *para, arisc_rw_type_e op)
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{
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struct arisc_message *pmsg;
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int result;
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/* allocate a message frame */
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pmsg = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
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if (pmsg == NULL) {
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ARISC_ERR("allocate message for query standby info failed\n");
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return -ENOMEM;
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}
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/* check standby_info_para size valid or not */
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if (sizeof(struct standby_info_para) > sizeof(pmsg->paras)) {
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ARISC_ERR("standby info parameters number too long\n");
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return -EINVAL;
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}
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/* initialize message */
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pmsg->type = ARISC_STANDBY_INFO_REQ;
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pmsg->cb.handler = NULL;
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pmsg->cb.arg = NULL;
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pmsg->private = (void *)op;
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if (ARISC_WRITE == op) {
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memcpy((void *)pmsg->paras, (const void *)para, sizeof(struct standby_info_para));
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memcpy((void *)&arisc_powchk_back, (const void *)para, sizeof(struct standby_info_para));
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}
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pmsg->state = ARISC_MESSAGE_INITIALIZED;
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/* send query sst info request to arisc */
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arisc_hwmsgbox_send_message(pmsg, ARISC_SEND_MSG_TIMEOUT);
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if (ARISC_READ == op)
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memcpy((void *)para, (void *)pmsg->paras, sizeof(struct standby_info_para));
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/* free message */
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result = pmsg->result;
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arisc_message_free(pmsg);
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return result;
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}
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EXPORT_SYMBOL(arisc_query_set_standby_info);
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/*
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* query super-standby dram crc result.
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* @para: point of buffer to store dram crc result informations.
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*
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* return: result, 0 - query successed,
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* !0 - query failed;
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*/
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int arisc_query_dram_crc_result(unsigned long *perror, unsigned long *ptotal_count,
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unsigned long *perror_count)
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{
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*perror = dram_crc_error;
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*ptotal_count = dram_crc_total_count;
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*perror_count = dram_crc_error_count;
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return 0;
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}
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EXPORT_SYMBOL(arisc_query_dram_crc_result);
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int arisc_set_dram_crc_result(unsigned long error, unsigned long total_count,
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unsigned long error_count)
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{
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dram_crc_error = error;
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dram_crc_total_count = total_count;
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dram_crc_error_count = error_count;
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return 0;
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}
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EXPORT_SYMBOL(arisc_set_dram_crc_result);
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/**
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* notify arisc cpux restored.
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* @para: none.
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*
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* return: result, 0 - notify successed, !0 - notify failed;
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*/
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int arisc_cpux_ready_notify(void)
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{
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struct arisc_message *pmessage;
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/* notify hwspinlock and hwmsgbox resume first */
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arisc_hwmsgbox_standby_resume();
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/* allocate a message frame */
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pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
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if (pmessage == NULL) {
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ARISC_WRN("allocate message failed\n");
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return -ENOMEM;
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}
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/* initialize message */
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pmessage->type = ARISC_SSTANDBY_RESTORE_NOTIFY;
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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/* record wakeup event */
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wakeup_event = pmessage->paras[0];
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if (arisc_debug_dram_crc_en) {
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dram_crc_error = pmessage->paras[1];
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dram_crc_total_count++;
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dram_crc_error_count += (dram_crc_error ? 1 : 0);
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}
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/* free message */
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arisc_message_free(pmessage);
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return 0;
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}
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EXPORT_SYMBOL(arisc_cpux_ready_notify);
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/**
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* enter talk standby.
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* @para: parameter for enter talk standby.
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*
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* return: result, 0 - talk standby successed,
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* !0 - talk standby failed;
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*/
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int arisc_standby_talk(struct super_standby_para *para, arisc_cb_t cb, void *cb_arg)
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{
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struct arisc_message *pmessage;
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/* allocate a message frame */
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pmessage = arisc_message_allocate(0);
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if (pmessage == NULL) {
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ARISC_ERR("allocate message for talk-standby request failed\n");
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return -ENOMEM;
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}
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/* check super_standby_para size valid or not */
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if (sizeof(struct super_standby_para) > sizeof(pmessage->paras)) {
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ARISC_ERR("talk-standby parameters number too long\n");
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return -EINVAL;
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}
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/* initialize message */
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pmessage->type = ARISC_TSTANDBY_ENTER_REQ;
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pmessage->cb.handler = cb;
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pmessage->cb.arg = cb_arg;
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memcpy((void *)pmessage->paras, (const void *)para, sizeof(struct super_standby_para));
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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/* send enter super-standby request to arisc */
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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return 0;
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}
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EXPORT_SYMBOL(arisc_standby_talk);
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/**
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* notify arisc cpux talk-standby restored.
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* @para: none.
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*
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* return: result, 0 - notify successed, !0 - notify failed;
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*/
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int arisc_cpux_talkstandby_ready_notify(void)
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{
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struct arisc_message *pmessage;
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/* notify hwspinlock and hwmsgbox resume first */
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arisc_hwmsgbox_standby_resume();
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/* allocate a message frame */
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pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
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if (pmessage == NULL) {
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ARISC_WRN("allocate message failed\n");
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return -ENOMEM;
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}
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/* initialize message */
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pmessage->type = ARISC_TSTANDBY_RESTORE_NOTIFY;
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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/* record wakeup event */
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wakeup_event = pmessage->paras[0];
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if (arisc_debug_dram_crc_en) {
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dram_crc_error = pmessage->paras[1];
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dram_crc_total_count++;
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dram_crc_error_count += (dram_crc_error ? 1 : 0);
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}
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/* free message */
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arisc_message_free(pmessage);
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return 0;
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}
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EXPORT_SYMBOL(arisc_cpux_talkstandby_ready_notify);
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int arisc_config_ir_paras(u32 ir_code, u32 ir_addr)
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{
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int result = 0;
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struct arisc_message *pmessage;
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/* allocate a message frame */
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pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
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if (pmessage == NULL) {
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ARISC_WRN("allocate message failed\n");
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return -ENOMEM;
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}
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/* initialize message */
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pmessage->type = ARISC_SET_IR_PARAS;
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pmessage->paras[0] = ir_code;
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pmessage->paras[1] = ir_addr;
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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pmessage->cb.handler = NULL;
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pmessage->cb.arg = NULL;
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ARISC_INF("ir power key:0x%x, addr:0x%x\n", ir_code, ir_addr);
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/* send request message */
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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if (pmessage->result) {
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ARISC_WRN("config ir power key code [%d] fail\n", pmessage->paras[0]);
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result = -EINVAL;
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}
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/* free allocated message */
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arisc_message_free(pmessage);
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return result;
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}
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EXPORT_SYMBOL(arisc_config_ir_paras);
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int arisc_sysconfig_ir_paras(void)
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{
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struct device_node *np;
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u32 ir_power_key_code = 0;
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u32 ir_addr_code = 0;
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int result = 0;
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struct arisc_message *pmessage;
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np = of_find_compatible_node(NULL, NULL, "allwinner,s_cir");
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if (!np) {
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ARISC_INF("No allwinner,s_cir node found\n");
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return -ENODEV;
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}
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if (of_property_read_u32(np, "ir_power_key_code", &ir_power_key_code)) {
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ARISC_INF("parse ir power key code fail\n");
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return -EINVAL;
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}
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if (of_property_read_u32(np, "ir_addr_code", &ir_power_key_code)) {
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ARISC_INF("parse ir address code fail\n");
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return -EINVAL;
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}
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/* allocate a message frame */
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pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
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if (pmessage == NULL) {
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ARISC_INF("allocate message failed\n");
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return -ENOMEM;
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}
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/* initialize message */
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pmessage->type = ARISC_SET_IR_PARAS;
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pmessage->paras[0] = ir_power_key_code;
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pmessage->paras[1] = ir_addr_code;
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pmessage->state = ARISC_MESSAGE_INITIALIZED;
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pmessage->cb.handler = NULL;
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pmessage->cb.arg = NULL;
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ARISC_INF("ir power key code:0x%x\n", pmessage->paras[0]);
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/* send request message */
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arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
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/* check config fail or not */
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if (pmessage->result) {
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ARISC_WRN("config ir power key code [%d] fail\n", pmessage->paras[0]);
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result = -EINVAL;
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}
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/* free allocated message */
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arisc_message_free(pmessage);
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|
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return result;
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}
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|
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int arisc_sysconfig_sstpower_paras(void)
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{
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struct device_node *np;
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np = of_find_compatible_node(NULL, NULL, "allwinner,s_powchk");
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if (IS_ERR(np)) {
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ARISC_ERR("get [allwinner,s_powchk] node error\n");
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return -EINVAL;
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}
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arisc_powchk_back.power_state.enable = of_device_is_available(np);
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if (of_property_read_u32(np, "s_power_reg", &arisc_powchk_back.power_state.power_reg)) {
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ARISC_ERR("sst power reg err %d!", __LINE__);
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return -EINVAL;
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}
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if (of_property_read_u32(np, "s_system_power", &arisc_powchk_back.power_state.system_power)) {
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ARISC_ERR("sst system power err %d!", __LINE__);
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return -EINVAL;
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}
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arisc_set_standby_power_cfg(&arisc_powchk_back);
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return 0;
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}
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|
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#else
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/**
|
|
* query super-standby wakeup source.
|
|
* @para: point of buffer to store wakeup event informations.
|
|
*
|
|
* return: result, 0 - query successed,
|
|
* !0 - query failed;
|
|
*/
|
|
int arisc_query_wakeup_source(u32 *event)
|
|
{
|
|
int result;
|
|
|
|
/* send message use hwmsgbox */
|
|
result = invoke_scp_fn_smc(ARM_SVC_ARISC_QUERY_WAKEUP_SRC_REQ, virt_to_phys(event), 0, 0);
|
|
|
|
return result;
|
|
}
|
|
EXPORT_SYMBOL(arisc_query_wakeup_source);
|
|
|
|
/**
|
|
* clear super-standby wakeup source.
|
|
*
|
|
* return: result, 0 - clear successed,
|
|
* !0 - clear failed;
|
|
*/
|
|
int arisc_clear_wakeup_source(void)
|
|
{
|
|
int result;
|
|
|
|
/* send message use hwmsgbox */
|
|
result = invoke_scp_fn_smc(ARM_SVC_ARISC_CLEAR_WAKEUP_SRC_REQ, 0, 0, 0);
|
|
|
|
return result;
|
|
}
|
|
EXPORT_SYMBOL(arisc_clear_wakeup_source);
|
|
/*
|
|
* query super-standby infoation.
|
|
* @para: point of array to store power states informations during sst.
|
|
* @op: 0:read, 1:set
|
|
*
|
|
* return: result, 0 - query successed,
|
|
* !0 - query failed;
|
|
*/
|
|
int arisc_query_standby_power_cfg(struct standby_info_para *para)
|
|
{
|
|
memcpy((void *)para, (void *)&arisc_powchk_back, sizeof(struct standby_info_para));
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(arisc_query_standby_power_cfg);
|
|
|
|
/*
|
|
* query super-standby infoation.
|
|
* @para: point of array to store power states informations during sst.
|
|
* @op: 0:read, 1:set
|
|
*
|
|
* return: result, 0 - query successed,
|
|
* !0 - query failed;
|
|
*/
|
|
int arisc_query_set_standby_info(struct standby_info_para *para, arisc_rw_type_e op)
|
|
{
|
|
int result;
|
|
u32 temp_paras[22];
|
|
|
|
/* check standby_info_para size valid or not */
|
|
if (sizeof(struct standby_info_para) > sizeof(temp_paras)) {
|
|
ARISC_ERR("standby info parameters number too long\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* initialize message */
|
|
if (ARISC_WRITE == op) {
|
|
memcpy((void *)temp_paras, (const void *)para, sizeof(struct standby_info_para));
|
|
memcpy((void *)&arisc_powchk_back, (const void *)para, sizeof(struct standby_info_para));
|
|
/* send query sst info request to arisc */
|
|
/* FIXME: if the runtime sever enable the mmu & dcache,
|
|
* should not use flush cache here.
|
|
*/
|
|
}
|
|
|
|
|
|
/* send message use hwmsgbox */
|
|
result = invoke_scp_fn_smc(ARM_SVC_ARISC_STANDBY_INFO_REQ, virt_to_phys(temp_paras), op, 0);
|
|
if (ARISC_READ == op) {
|
|
memcpy((void *)para, (void *)temp_paras, sizeof(struct standby_info_para));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
EXPORT_SYMBOL(arisc_query_set_standby_info);
|
|
|
|
/*
|
|
* query super-standby dram crc result.
|
|
* @para: point of buffer to store dram crc result informations.
|
|
*
|
|
* return: result, 0 - query successed,
|
|
* !0 - query failed;
|
|
*/
|
|
int arisc_query_dram_crc_result(unsigned long *perror, unsigned long *ptotal_count,
|
|
unsigned long *perror_count)
|
|
{
|
|
*perror = dram_crc_error;
|
|
*ptotal_count = dram_crc_total_count;
|
|
*perror_count = dram_crc_error_count;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(arisc_query_dram_crc_result);
|
|
|
|
int arisc_set_dram_crc_result(unsigned long error, unsigned long total_count,
|
|
unsigned long error_count)
|
|
{
|
|
dram_crc_error = error;
|
|
dram_crc_total_count = total_count;
|
|
dram_crc_error_count = error_count;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(arisc_set_dram_crc_result);
|
|
#endif
|