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/*
* drivers/arisc/interfaces/arisc_axp.c
*
* Copyright (c) 2012 Allwinner.
* 2012-10-01 Written by superm (superm@allwinnertech.com).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "../arisc_i.h"
/* nmi isr node, record current nmi interrupt handler and argument */
nmi_isr_t nmi_isr_node[2];
/**
* register call-back function, call-back function is for arisc notify some event to ac327,
* axp/rtc interrupt for external interrupt NMI.
* @type: nmi type, pmu/rtc;
* @func: call-back function;
* @para: parameter for call-back function;
*
* @return: result, 0 - register call-back function successed;
* !0 - register call-back function failed;
* NOTE: the function is like "int callback(void *para)";
* this function will execute in system ISR.
*/
int arisc_nmi_cb_register(uint32_t type, arisc_cb_t func, void *para)
{
if (nmi_isr_node[type].handler) {
if(func == nmi_isr_node[type].handler) {
ARISC_WRN("nmi interrupt handler register already\n");
return 0;
}
/* just output warning message, overlay handler */
ARISC_WRN("nmi interrupt handler register already\n");
return -EINVAL;
}
nmi_isr_node[type].handler = func;
nmi_isr_node[type].arg = para;
return 0;
}
/**
* unregister call-back function.
* @type: nmi type, pmu/rtc;
* @func: call-back function which need be unregister;
*/
void arisc_nmi_cb_unregister(uint32_t type, arisc_cb_t func)
{
if ((nmi_isr_node[type].handler) != (func)) {
/* invalid handler */
ARISC_WRN("invalid handler for unreg\n\n");
return ;
}
nmi_isr_node[type].handler = NULL;
nmi_isr_node[type].arg = NULL;
}
int arisc_disable_nmi_irq(void)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_AXP_DISABLE_IRQ;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
int arisc_enable_nmi_irq(void)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_AXP_ENABLE_IRQ;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
int arisc_clear_nmi_status(void)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_CLR_NMI_STATUS;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
int arisc_set_nmi_trigger(uint32_t type)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_SET_NMI_TRIGGER;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
pmessage->paras[0] = type;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
int arisc_axp_get_chip_id(unsigned char *chip_id)
{
int i;
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_AXP_GET_CHIP_ID;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
memset((void *)pmessage->paras, 0, 16);
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* |paras[0] |paras[1] |paras[2] |paras[3] |
* |chip_id[0~3]|chip_id[4~7]|chip_id[8~11]|chip_id[12~15]|
*/
/* copy message readout data to user data buffer */
for (i = 0; i < 4; i++) {
chip_id[i] = (pmessage->paras[0] >> (i * 8)) & 0xff;
chip_id[4 + i] = (pmessage->paras[1] >> (i * 8)) & 0xff;
chip_id[8 + i] = (pmessage->paras[2] >> (i * 8)) & 0xff;
chip_id[12 + i] = (pmessage->paras[3] >> (i * 8)) & 0xff;
}
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
int arisc_set_led_bln(uint32_t *paras)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_SET_LED_BLN;
pmessage->paras[0] = paras[0];
pmessage->paras[1] = paras[1];
pmessage->paras[2] = paras[2];
pmessage->paras[3] = paras[3];
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
#if (defined CONFIG_ARCH_SUN8IW5P1) || (defined CONFIG_ARCH_SUN50IW1P1)
int arisc_adjust_pmu_chgcur(uint32_t max_chgcur, uint32_t chg_ic_temp, uint32_t flag)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_AXP_SET_PARAS;
pmessage->paras[0] = chg_ic_temp;
pmessage->paras[1] = max_chgcur;
pmessage->paras[2] = flag;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
#endif
int arisc_set_pwr_tree(uint32_t *pwr_tree)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_SET_PWR_TREE;
memcpy((void *)pmessage->paras, (void *)pwr_tree, sizeof(int)*DM_MAX);
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
int arisc_axp_int_notify(struct arisc_message *pmessage)
{
uint32_t type = pmessage->paras[0];
uint32_t ret = 0;
if (type & NMI_INT_TYPE_PMU_OFFSET) {
/* call pmu interrupt handler */
if (nmi_isr_node[NMI_INT_TYPE_PMU].handler == NULL) {
ARISC_WRN("pmu irq handler not install\n");
return 1;
}
ARISC_INF("call pmu interrupt handler\n");
ret |= (*(nmi_isr_node[NMI_INT_TYPE_PMU].handler))(nmi_isr_node[NMI_INT_TYPE_PMU].arg);
}
if (type & NMI_INT_TYPE_RTC_OFFSET)
{
/* call rtc interrupt handler */
if (nmi_isr_node[NMI_INT_TYPE_RTC].handler == NULL) {
ARISC_WRN("rtc irq handler not install\n");
return 1;
}
ARISC_INF("call rtc interrupt handler\n");
ret |= (*(nmi_isr_node[NMI_INT_TYPE_RTC].handler))(nmi_isr_node[NMI_INT_TYPE_RTC].arg);
}
return ret;
}
int arisc_pmu_set_voltage(uint32_t type, uint32_t voltage)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_SET_PMU_VOLT;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
pmessage->paras[0] = type;
pmessage->paras[1] = voltage;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
int arisc_pmu_get_voltage(uint32_t type, uint32_t *voltage)
{
int result;
struct arisc_message *pmessage;
/* allocate a message frame */
pmessage = arisc_message_allocate(ARISC_MESSAGE_ATTR_HARDSYN);
if (pmessage == NULL) {
ARISC_WRN("allocate message failed\n");
return -ENOMEM;
}
/* initialize message */
pmessage->type = ARISC_GET_PMU_VOLT;
pmessage->state = ARISC_MESSAGE_INITIALIZED;
pmessage->cb.handler = NULL;
pmessage->cb.arg = NULL;
pmessage->paras[0] = type;
/* send message use hwmsgbox */
arisc_hwmsgbox_send_message(pmessage, ARISC_SEND_MSG_TIMEOUT);
*voltage = pmessage->paras[1];
/* free message */
result = pmessage->result;
arisc_message_free(pmessage);
return result;
}
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