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oleavr-rgl-a500-mini-linux-.../drivers/soc/allwinner/pm/extended_standby-sun8iw6.c
Ole André Vadla Ravnås 169c65d57e Initial commit
2022-05-07 01:01:45 +02:00

908 lines
26 KiB
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/*
* Copyright (c) 2007-2017 Allwinnertech Co., Ltd.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
/* extended_standby.c
*
* Copyright (C) 2013-2014 allwinner.
*
* By : liming
* Version : v1.0
* Date : 2013-4-17 09:08
*/
#include <linux/module.h>
#include <linux/power/aw_pm.h>
#include <linux/power/scenelock.h>
#include "pm.h"
#include "../../../../kernel/power/power.h"
static int aw_ex_standby_debug_mask;
#undef EXSTANDBY_DBG
#define EXSTANDBY_DBG(format, args...) do { \
if (aw_ex_standby_debug_mask) { \
pr_info("[exstandby]"format, ##args); \
} else { \
do {} while (0) \
; \
} \
} while (0)
static DEFINE_SPINLOCK(data_lock);
static extended_standby_t temp_standby_data = {
.id = 0,
};
static extended_standby_manager_t extended_standby_manager = {
.pextended_standby = NULL,
.event = 0,
.wakeup_gpio_map = 0,
.wakeup_gpio_group = 0,
};
static struct kobject *aw_ex_standby_kobj;
static bool calculate_pll(int index, scene_extended_standby_t *standby_data)
{
__u32 standby_rate;
__u32 tmp_standby_rate;
__u32 dividend;
__u32 divisor;
cpux_clk_para_t *pclk_para;
cpux_clk_para_t *ptmp_clk_para;
pclk_para = &(standby_data->soc_pwr_dep.cpux_clk_state);
ptmp_clk_para = &(temp_standby_data.cpux_clk_state);
switch (index) {
case PM_PLL_C0:
case PM_PLL_C1:
case PM_PLL_AUDIO:
case PM_PLL_VIDEO0:
case PM_PLL_VE:
case PM_PLL_DRAM:
pr_err("%s err: not ready.\n", __func__);
break;
case PM_PLL_PERIPH:
dividend = pclk_para->pll_factor[index].factor1 *
(pclk_para->pll_factor[index].factor2 + 1);
divisor = pclk_para->pll_factor[index].factor3 + 1;
standby_rate = do_div(dividend, divisor);
dividend = ptmp_clk_para->pll_factor[index].factor1 *
(ptmp_clk_para->pll_factor[index].factor2 + 1);
divisor = ptmp_clk_para->pll_factor[index].factor3 + 1;
tmp_standby_rate = do_div(dividend, divisor);
if (standby_rate > tmp_standby_rate)
return true;
else
return false;
case PM_PLL_GPU:
case PM_PLL_HSIC:
case PM_PLL_DE:
case PM_PLL_VIDEO1:
pr_err("%s err: not ready.\n", __func__);
break;
default:
pr_err("%s err: input para.\n", __func__);
break;
}
return false;
}
static bool calculate_bus(int index, scene_extended_standby_t *standby_data)
{
cpux_clk_para_t *pclk_para =
&(standby_data->soc_pwr_dep.cpux_clk_state);
cpux_clk_para_t *ptmp_clk_para = &(temp_standby_data.cpux_clk_state);
if (BUS_NUM <= index) {
if (pclk_para->bus_factor[index].src >
ptmp_clk_para->bus_factor[index].src)
return true;
else
return false;
} else {
pr_info("%s: input para err.\n", __func__);
}
return false;
}
/*
* function: make dependency check,
* for make sure the pwr dependency is reasonable.
* return 0: if reasonable.
* -1: if not reasonable.
*/
static int check_cfg(void)
{
int ret = 0;
int i = 0;
cpux_clk_para_t *ptmp_clk_para = &(temp_standby_data.cpux_clk_state);
/* make sure bus parent is exist. */
if (0 != ptmp_clk_para->bus_change) {
for (i = 0; i < BUS_NUM; i++) {
if ((CLK_SRC_LOSC == ptmp_clk_para->bus_factor[i].src)
&& !(ptmp_clk_para->osc_en & BITMAP(OSC_LOSC_BIT))) {
ret = -1;
}
if ((CLK_SRC_HOSC == ptmp_clk_para->bus_factor[i].src)
&& !(ptmp_clk_para->osc_en & BITMAP(OSC_HOSC_BIT))) {
ret = -2;
}
if ((CLK_SRC_PLL6 == ptmp_clk_para->bus_factor[i].src)
&& !(ptmp_clk_para->init_pll_dis &
BITMAP(PM_PLL_PERIPH))) {
ret = -3;
}
}
}
/* check hold_flag is reasonable. */
if (1 == temp_standby_data.soc_io_state.hold_flag &&
(temp_standby_data.soc_pwr_dm_state.state &
temp_standby_data.soc_pwr_dm_state.sys_mask &
BITMAP(VDD_SYS_BIT))) {
/* when vdd_sys is ON, no need to set hold_flag; */
ret = -11;
}
/* make sure selfresh flag is reasonable */
if (0 == temp_standby_data.soc_dram_state.selfresh_flag) {
/* when selfresh is disable, then VDD_SYS_BIT is needed */
if (!(temp_standby_data.soc_pwr_dm_state.state &
temp_standby_data.soc_pwr_dm_state.sys_mask &
BITMAP(VDD_SYS_BIT))) {
ret = -21;
}
}
if (-1 == ret) {
pr_info("func: %s, ret = %d.\n", __func__, ret);
dump_stack();
}
return ret;
}
/*
* return value:
* 0: merge io done for ptmp_io_para->io_state[i]
* -1: exist new io config, need to remerge.
*/
static int merge_io(soc_pwr_dep_t *ppwr_dep, int j,
soc_io_para_t *ptmp_io_para, int i)
{
int new_config_flag = 0;
soc_io_para_t *io_state = &(ppwr_dep->soc_io_state);
/* orig configed */
/* when io has not been initialized. */
if (0 == ptmp_io_para->io_state[i].paddr) {
ptmp_io_para->io_state[i].paddr = io_state->io_state[j].paddr;
ptmp_io_para->io_state[i].value_mask =
io_state->io_state[j].value_mask;
ptmp_io_para->io_state[i].value = io_state->io_state[j].value;
return 0;
} else {
if (ptmp_io_para->io_state[i].paddr ==
io_state->io_state[j].paddr &&
ptmp_io_para->io_state[i].value_mask ==
io_state->io_state[j].value_mask) {
if (ptmp_io_para->io_state[i].value !=
io_state->io_state[j].value) {
pr_info("NOTICE: io config conflict.\n");
dump_stack();
} else {
pr_info("NOTICE: io config is the same.\n");
new_config_flag = 0;
return 0;
}
} else {
/* new config? */
new_config_flag = 1;
}
}
if (1 == new_config_flag)
pr_err("NOTICE: exist new io config.\n");
return -1;
}
/* notice: how to merge io config
* not supprt add io config,
* this code just for checking io config.*/
static void merge_io_config(soc_pwr_dep_t *ppwr_dep,
soc_io_para_t *ptmp_io_para)
{
int i = 0;
int j = 0;
/* unhold_flag has higher level priority. */
ptmp_io_para->hold_flag &= ppwr_dep->soc_io_state.hold_flag;
for (j = 0; j < IO_NUM; j++) {
/* new added */
if (0 == ppwr_dep->soc_io_state.io_state[j].paddr) {
pr_info("io config is not in effect.\n");
continue;
}
for (i = 0; i < IO_NUM; i++) {
if (0 == merge_io(ppwr_dep, j, ptmp_io_para, i))
break;
else
continue;
}
}
return;
}
/* only update voltage when new config has pwr on info;
* for stable reason, remain the higher voltage;*/
static void merge_volt_config(soc_pwr_dep_t *ppwr_dep,
pwr_dm_state_t *ptmp_pwr_dep)
{
int i = 0;
if ((0 != ((ptmp_pwr_dep->state) & (ptmp_pwr_dep->sys_mask))) ||
((ptmp_pwr_dep->sys_mask == 0) && (0 != ptmp_pwr_dep->state))) {
for (i = 0; i < VCC_MAX_INDEX; i++) {
if (ppwr_dep->soc_pwr_dm_state.volt[i] >
ptmp_pwr_dep->volt[i]) {
ptmp_pwr_dep->volt[i] =
ppwr_dep->soc_pwr_dm_state.volt[i];
}
}
}
}
static void merge_clk_config(cpux_clk_para_t *ptmp_clk_para,
cpux_clk_para_t *pclk_para,
scene_extended_standby_t *standby_data)
{
int i = 0;
ptmp_clk_para->osc_en |= pclk_para->osc_en;
/* 0 is disable, enable have higher priority. */
ptmp_clk_para->init_pll_dis |= pclk_para->init_pll_dis;
ptmp_clk_para->exit_pll_en |= pclk_para->exit_pll_en;
if (0 != pclk_para->pll_change) {
for (i = 0; i < PLL_NUM; i++) {
if (pclk_para->pll_change & (0x1 << i)) {
if (!(ptmp_clk_para->pll_change & (0x1 << i))
|| calculate_pll(i, standby_data))
ptmp_clk_para->pll_factor[i]
= pclk_para->pll_factor[i];
}
}
ptmp_clk_para->pll_change |= pclk_para->pll_change;
}
if (0 != pclk_para->bus_change) {
for (i = 0; i < BUS_NUM; i++) {
if (pclk_para->bus_change & (0x1 << i)) {
if (!(ptmp_clk_para->bus_change & (0x1 << i))
|| calculate_bus(i, standby_data))
ptmp_clk_para->bus_factor[i]
= pclk_para->bus_factor[i];
}
}
ptmp_clk_para->bus_change |= pclk_para->bus_change;
}
return;
}
static int copy_extended_standby_data(scene_extended_standby_t *standby_data)
{
int i = 0;
cpux_clk_para_t *pclk_para =
&(standby_data->soc_pwr_dep.cpux_clk_state);
cpux_clk_para_t *ptmp_clk_para = &(temp_standby_data.cpux_clk_state);
soc_pwr_dep_t *ppwr_dep = &(standby_data->soc_pwr_dep);
pwr_dm_state_t *ptmp_pwr_dep = &(temp_standby_data.soc_pwr_dm_state);
soc_io_para_t *ptmp_io_para = &(temp_standby_data.soc_io_state);
if (!standby_data) {
temp_standby_data.id = 0;
ptmp_pwr_dep->state = 0;
ptmp_pwr_dep->sys_mask = 0;
memset(&ptmp_pwr_dep->volt, 0, sizeof(ptmp_pwr_dep->volt));
ptmp_clk_para->osc_en = 0;
ptmp_clk_para->init_pll_dis = 0;
ptmp_clk_para->exit_pll_en = 0;
ptmp_clk_para->pll_change = 0;
ptmp_clk_para->bus_change = 0;
memset(&ptmp_clk_para->pll_factor, 0,
sizeof(ptmp_clk_para->pll_factor));
memset(&ptmp_clk_para->bus_factor, 0,
sizeof(ptmp_clk_para->bus_factor));
ptmp_io_para->hold_flag = 0;
memset(&ptmp_io_para->io_state, 0,
sizeof(ptmp_io_para->io_state));
temp_standby_data.soc_dram_state.selfresh_flag = 0;
} else {
if ((0 != temp_standby_data.id)
&& (!((ppwr_dep->id) & (temp_standby_data.id)))) {
temp_standby_data.id |= ppwr_dep->id;
ptmp_pwr_dep->state |= ppwr_dep->soc_pwr_dm_state.state;
merge_volt_config(ppwr_dep, ptmp_pwr_dep);
merge_clk_config(ptmp_clk_para,
pclk_para, standby_data);
merge_io_config(ppwr_dep, ptmp_io_para);
/* un_selfresh_flag has higher level priority. */
temp_standby_data.soc_dram_state.selfresh_flag
&= ppwr_dep->soc_dram_state.selfresh_flag;
} else if ((0 == temp_standby_data.id)) {
/* update sys_mask:
* when scene_unlock happend or scene_lock cnt > 0 */
#if defined(CONFIG_AW_AXP)
ptmp_pwr_dep->sys_mask = get_sys_pwr_dm_mask();
#endif
temp_standby_data.id = ppwr_dep->id;
ptmp_pwr_dep->state = ppwr_dep->soc_pwr_dm_state.state;
if (0 != (ptmp_pwr_dep->state & ptmp_pwr_dep->sys_mask)) {
for (i = 0; i < VCC_MAX_INDEX; i++) {
ptmp_pwr_dep->volt[i] =
ppwr_dep->soc_pwr_dm_state.volt[i];
}
} else
memset(&ptmp_pwr_dep->volt, 0,
sizeof(ptmp_pwr_dep->volt));
ptmp_clk_para->osc_en = pclk_para->osc_en;
ptmp_clk_para->init_pll_dis = pclk_para->init_pll_dis;
ptmp_clk_para->exit_pll_en = pclk_para->exit_pll_en;
ptmp_clk_para->pll_change = pclk_para->pll_change;
if (0 != pclk_para->pll_change) {
for (i = 0; i < PLL_NUM; i++) {
ptmp_clk_para->pll_factor[i] =
pclk_para->pll_factor[i];
}
} else
memset(&ptmp_clk_para->pll_factor, 0,
sizeof(ptmp_clk_para->pll_factor));
ptmp_clk_para->bus_change = pclk_para->bus_change;
if (0 != pclk_para->bus_change) {
for (i = 0; i < BUS_NUM; i++) {
ptmp_clk_para->bus_factor[i] =
pclk_para->bus_factor[i];
}
} else
memset(&ptmp_clk_para->bus_factor, 0,
sizeof(ptmp_clk_para->bus_factor));
ptmp_io_para->hold_flag =
ppwr_dep->soc_io_state.hold_flag;
for (i = 0; i < IO_NUM; i++) {
ptmp_io_para->io_state[i] =
ppwr_dep->soc_io_state.io_state[i];
}
temp_standby_data.soc_dram_state.selfresh_flag =
ppwr_dep->soc_dram_state.selfresh_flag;
}
}
return check_cfg();
}
/**
* get_extended_standby_manager -
* get the extended_standby_manager pointer
*
* Return : if the extended_standby_manager is effective,
* return the extended_standby_manager pointer;
* else return NULL;
* Notes : you can check the configuration from the pointer.
*/
const extended_standby_manager_t *get_extended_standby_manager(void)
{
unsigned long irqflags;
extended_standby_manager_t *manager_data = NULL;
spin_lock_irqsave(&data_lock, irqflags);
manager_data = &extended_standby_manager;
spin_unlock_irqrestore(&data_lock, irqflags);
if ((NULL != manager_data) && (NULL != manager_data->pextended_standby)) {
#if defined(CONFIG_AW_AXP)
/* update sys_mask */
manager_data->pextended_standby->soc_pwr_dm_state.sys_mask
= get_sys_pwr_dm_mask();
#endif
EXSTANDBY_DBG("leave %s : id 0x%x\n", __func__,
manager_data->pextended_standby->id);
}
return manager_data;
}
/**
* set_extended_standby_manager - set the extended_standby_manager;
* manager@: the manager config.
*
* return value: if the setting is correct, return true.
* else return false;
* notes: the function will check
* the struct member: pextended_standby and event.
* if the setting is not proper, return false.
*/
bool set_extended_standby_manager(scene_extended_standby_t *local_standby)
{
unsigned long irqflags;
EXSTANDBY_DBG("enter %s\n", __func__);
if (local_standby &&
(0 == local_standby->soc_pwr_dep.soc_pwr_dm_state.state)) {
return true;
}
if (!local_standby) {
spin_lock_irqsave(&data_lock, irqflags);
copy_extended_standby_data(NULL);
extended_standby_manager.pextended_standby = NULL;
spin_unlock_irqrestore(&data_lock, irqflags);
return true;
} else {
spin_lock_irqsave(&data_lock, irqflags);
copy_extended_standby_data(local_standby);
extended_standby_manager.pextended_standby = &temp_standby_data;
spin_unlock_irqrestore(&data_lock, irqflags);
}
if (NULL != extended_standby_manager.pextended_standby)
EXSTANDBY_DBG("leave %s : id 0x%x\n", __func__,
extended_standby_manager.pextended_standby->id);
return true;
}
/**
* extended_standby_set_pmu_id - set pmu_id for suspend modules.
*
* @num: pmu serial number;
* @pmu_id: corresponding pmu_id;
*/
int extended_standby_set_pmu_id(unsigned int num, unsigned int pmu_id)
{
unsigned int tmp;
if (num > 4 || num < 0) {
pr_err("num: %ux not valid.\n", num);
return -1;
}
tmp = temp_standby_data.pmu_id;
tmp &= ~(0xff << ((num) * 8));
tmp |= (pmu_id << ((num) * 8));
temp_standby_data.pmu_id = tmp;
return 0;
}
/**
* extended_standby_get_pmu_id -
* get specific pmu_id for suspend modules.
*
* @num: pmu serial number;
*/
int extended_standby_get_pmu_id(unsigned int num)
{
unsigned int tmp;
if (num > 4 || num < 0) {
pr_err("num: %ux not valid.\n", num);
return -1;
}
tmp = temp_standby_data.pmu_id;
tmp >>= ((num) * 8);
tmp &= (0xff);
return tmp;
}
/**
* extended_standby_store_dram_crc_paras
* - store dram_crc_paras for suspend modules.
*
* @num: pmu serial number;
* @dram_crc_paras: corresponding dram_crc_paras;
*/
static ssize_t extended_standby_dram_crc_paras_store(struct device *dev, struct
device_attribute
*attr,
const char *buf,
size_t size)
{
unsigned int dram_crc_en;
unsigned int dram_crc_start;
unsigned int dram_crc_len;
sscanf(buf, "%x %x %x\n", &dram_crc_en, &dram_crc_start, &dram_crc_len);
if ((dram_crc_en != 0) && (dram_crc_en != 1)) {
pr_err("invalid paras for dram_crc: [%x] [%x] [%x]\n",
dram_crc_en, dram_crc_start, dram_crc_len);
return size;
}
temp_standby_data.soc_dram_state.crc_en = dram_crc_en;
temp_standby_data.soc_dram_state.crc_start = dram_crc_start;
temp_standby_data.soc_dram_state.crc_len = dram_crc_len;
return size;
}
/**
* extended_standby_show_dram_crc_paras
* - show specific dram_crc_paras for suspend modules.
*
* @num: pmu serial number;
*/
ssize_t extended_standby_dram_crc_paras_show(struct device *dev,
struct device_attribute *
attr, char *buf)
{
char *s = buf;
s += sprintf(buf, "dram_crc_paras: enable, start, len == \
[%x] [%x] [%x]\n", temp_standby_data.soc_dram_state.crc_en, temp_standby_data.soc_dram_state.crc_start, temp_standby_data.soc_dram_state.crc_len);
return s - buf;
}
/**
* extended_standby_enable_wakeup_src - enable the wakeup src.
*
* function: the device driver care about the wakeup src.
* if the device driver do want the system
* be wakenup while in standby state.
* the device driver should use this function
* to enable corresponding intterupt.
* @src: wakeup src.
* @para: if wakeup src need para, be the para of wakeup src,
* else ignored.
* notice: 1. for gpio intterupt, only access the enable bit,
* mean u need care about other config,
* such as: int mode, pull up
* or pull down resistance, etc.
* 2. At a31, only gpio<69><6F>pa, pb, pe, pg,
* pl, pm<70><6D>int wakeup src is supported.
*/
int extended_standby_enable_wakeup_src(cpu_wakeup_src_e src, int para)
{
unsigned long irqflags;
unsigned long gpio_map = extended_standby_manager.wakeup_gpio_map;
unsigned long gpio_group = extended_standby_manager.wakeup_gpio_group;
spin_lock_irqsave(&data_lock, irqflags);
extended_standby_manager.event |= src;
if (CPUS_GPIO_SRC & src) {
if (para >= AXP_PIN_BASE) {
gpio_map |= (WAKEUP_GPIO_AXP((para - AXP_PIN_BASE)));
} else if (para >= SUNXI_PM_BASE) {
gpio_map |= (WAKEUP_GPIO_PM((para - SUNXI_PM_BASE)));
} else if (para >= SUNXI_PL_BASE) {
gpio_map |= (WAKEUP_GPIO_PL((para - SUNXI_PL_BASE)));
} else if (para >= SUNXI_PH_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('H'));
} else if (para >= SUNXI_PG_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('G'));
} else if (para >= SUNXI_PF_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('F'));
} else if (para >= SUNXI_PE_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('E'));
} else if (para >= SUNXI_PD_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('D'));
} else if (para >= SUNXI_PC_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('C'));
} else if (para >= SUNXI_PB_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('B'));
} else if (para >= SUNXI_PA_BASE) {
gpio_group |= (WAKEUP_GPIO_GROUP('A'));
} else {
pr_info("cpux need care gpio %d. but, notice,\
currently, cpux not support it.\n", para);
}
}
spin_unlock_irqrestore(&data_lock, irqflags);
EXSTANDBY_DBG("leave %s : event 0x%lx\n",
__func__, extended_standby_manager.event);
EXSTANDBY_DBG("leave %s : wakeup_gpio_map 0x%lx\n", __func__, gpio_map);
EXSTANDBY_DBG("leave %s : wakeup_gpio_group 0x%lx\n",
__func__, gpio_group);
extended_standby_manager.wakeup_gpio_group = gpio_group;
extended_standby_manager.wakeup_gpio_map = gpio_map;
return 0;
}
/**
* extended_standby_disable_wakeup_src - disable the wakeup src.
*
* function: if the device driver do not want the system
* be wakenup while in standby state again.
* the device driver should use this function
* to disable the corresponding intterupt.
*
* @src: wakeup src.
* @para: if wakeup src need para, be the para of wakeup src,
* else ignored.
* notice: for gpio intterupt, only access the enable bit,
* mean u need care about other config,
* such as: int mode, pull up or
* pull down resistance, etc.
*/
int extended_standby_disable_wakeup_src(cpu_wakeup_src_e src, int para)
{
unsigned long irqflags;
extended_standby_manager_t *pextend_mnger = &(extended_standby_manager);
unsigned long gpio_map = extended_standby_manager.wakeup_gpio_map;
unsigned long gpio_group = extended_standby_manager.wakeup_gpio_group;
spin_lock_irqsave(&data_lock, irqflags);
pextend_mnger->event &= (~src);
if (CPUS_GPIO_SRC & src) {
if (para >= AXP_PIN_BASE) {
gpio_map &= (~(WAKEUP_GPIO_AXP((para - AXP_PIN_BASE))));
} else if (para >= SUNXI_PM_BASE) {
gpio_map &= (~(WAKEUP_GPIO_PM((para - SUNXI_PM_BASE))));
} else if (para >= SUNXI_PL_BASE) {
gpio_map &= (~(WAKEUP_GPIO_PL((para - SUNXI_PL_BASE))));
} else if (para >= SUNXI_PH_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('H')));
} else if (para >= SUNXI_PG_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('G')));
} else if (para >= SUNXI_PF_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('F')));
} else if (para >= SUNXI_PE_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('E')));
} else if (para >= SUNXI_PD_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('D')));
} else if (para >= SUNXI_PC_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('C')));
} else if (para >= SUNXI_PB_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('B')));
} else if (para >= SUNXI_PA_BASE) {
gpio_group &= (~(WAKEUP_GPIO_GROUP('A')));
} else {
pr_info("cpux need care gpio %d. but, notice,\
currently, cpux not support it.\n", para);
}
}
spin_unlock_irqrestore(&data_lock, irqflags);
EXSTANDBY_DBG("leave %s : event 0x%lx\n",
__func__, pextend_mnger->event);
EXSTANDBY_DBG("leave %s : wakeup_gpio_map 0x%lx\n", __func__, gpio_map);
EXSTANDBY_DBG("leave %s : wakeup_gpio_group 0x%lx\n",
__func__, gpio_group);
extended_standby_manager.wakeup_gpio_group = gpio_group;
extended_standby_manager.wakeup_gpio_map = gpio_map;
return 0;
}
/**
* extended_standby_check_wakeup_state
* - to get the corresponding
* wakeup src intterupt state, enable or disable.
*
* @src: wakeup src.
* @para: if wakeup src need para, be the para of wakeup src,
* else ignored.
*
* return value:
* enable, return 1,
* disable, return 2,
* error: return -1.
*/
int extended_standby_check_wakeup_state(cpu_wakeup_src_e src, int para)
{
unsigned long irqflags;
int ret = -1;
spin_lock_irqsave(&data_lock, irqflags);
if (extended_standby_manager.event & src)
ret = 1;
else
ret = 2;
spin_unlock_irqrestore(&data_lock, irqflags);
return ret;
}
/**
*
* function: standby state including locked_scene,
* power_supply dependancy, the wakeup src.
*
* return value:
* succeed, return 0,
* else return -1.
*/
int extended_standby_show_state(void)
{
unsigned long irqflags;
int i = 0;
unsigned int pwr_on_bitmap = 0;
unsigned int pwr_off_bitmap = 0;
extended_standby_t *pextend_standby =
(extended_standby_manager.pextended_standby);
cpux_clk_para_t *pclk_para = &(pextend_standby->cpux_clk_state);
standby_show_state();
spin_lock_irqsave(&data_lock, irqflags);
pr_info("dynamic config wakeup_src: 0x%16lx\n",
extended_standby_manager.event);
parse_wakeup_event(NULL, 0, extended_standby_manager.event);
pr_info("wakeup_gpio_map 0x%16lx\n",
extended_standby_manager.wakeup_gpio_map);
parse_wakeup_gpio_map(NULL, 0,
extended_standby_manager.wakeup_gpio_map);
pr_info("wakeup_gpio_group 0x%16lx\n",
extended_standby_manager.wakeup_gpio_group);
parse_wakeup_gpio_group_map(NULL, 0,
extended_standby_manager.wakeup_gpio_group);
if (NULL != pextend_standby) {
pr_info("extended_standby id = 0x%16x\n", pextend_standby->id);
pr_info("extended_standby pmu_id = 0x%16x\n",
pextend_standby->pmu_id);
pr_info("extended_standby soc_id = 0x%16x\n",
pextend_standby->soc_id);
pr_info("extended_standby pwr dep as follow:\n");
pr_info("pwr dm state as follow:\n");
pr_info("\tpwr dm state = 0x%8x.\n",
pextend_standby->soc_pwr_dm_state.state);
parse_pwr_dm_map(NULL, 0,
pextend_standby->soc_pwr_dm_state.state);
pr_info("\tpwr dm sys mask = 0x%8x.\n",
pextend_standby->soc_pwr_dm_state.sys_mask);
parse_pwr_dm_map(NULL, 0,
pextend_standby->soc_pwr_dm_state.sys_mask);
pwr_on_bitmap =
pextend_standby->
soc_pwr_dm_state.sys_mask & pextend_standby->
soc_pwr_dm_state.state;
pr_info("\tpwr on = 0x%x.\n", pwr_on_bitmap);
parse_pwr_dm_map(NULL, 0, pwr_on_bitmap);
pwr_off_bitmap =
(~pextend_standby->
soc_pwr_dm_state.sys_mask) | pextend_standby->
soc_pwr_dm_state.state;
pr_info("\tpwr off = 0x%x.\n", pwr_off_bitmap);
parse_pwr_dm_map(NULL, 0, (~pwr_off_bitmap));
EXSTANDBY_DBG("\tpwr on volt which need adjusted:\n");
if (0 != (pextend_standby->soc_pwr_dm_state.state &
pextend_standby->soc_pwr_dm_state.sys_mask)) {
for (i = 0; i < VCC_MAX_INDEX; i++) {
if (0 !=
pextend_standby->soc_pwr_dm_state.volt[i]) {
pr_info
("index = %d, volt[]= %d.\n",
i,
pextend_standby->soc_pwr_dm_state.
volt[i]);
}
}
}
EXSTANDBY_DBG("cpux clk state as follow:\n");
EXSTANDBY_DBG(" cpux osc en: 0x%8x.\n", pclk_para->osc_en);
EXSTANDBY_DBG
(" cpux pll init disabled config: 0x%8x.\n",
pclk_para->init_pll_dis);
EXSTANDBY_DBG(" cpux pll exit enable config: 0x%8x.\n",
pclk_para->exit_pll_en);
if (0 != pclk_para->pll_change) {
for (i = 0; i < PLL_NUM; i++) {
EXSTANDBY_DBG("pll%i: factor1=%d factor2=%d\
factor3=%d factor4=%d\n", i, pclk_para->pll_factor[i].factor1, pclk_para->pll_factor[i].factor2, pclk_para->pll_factor[i].factor3, pclk_para->pll_factor[i].factor4);
}
} else {
EXSTANDBY_DBG("pll_change == 0: no pll need change.\n");
}
if (0 != pclk_para->bus_change) {
for (i = 0; i < BUS_NUM; i++) {
EXSTANDBY_DBG("bus%i: src=%d pre_div=%d\
div_ratio=%d n=%d m=%d\n", i, pclk_para->bus_factor[i].src, pclk_para->bus_factor[i].pre_div, pclk_para->bus_factor[i].div_ratio, pclk_para->bus_factor[i].n, pclk_para->bus_factor[i].m);
}
} else {
EXSTANDBY_DBG("bus_change == 0: no bus need change.\n");
}
EXSTANDBY_DBG("cpux io state as follow:\n");
EXSTANDBY_DBG(" hold_flag = %d.\n",
pextend_standby->soc_io_state.hold_flag);
for (i = 0; i < IO_NUM; i++) {
if (0 !=
pextend_standby->soc_io_state.io_state[i].paddr) {
pr_info(" count %4d io config: addr 0x%x,\
value_mask 0x%8x, value 0x%8x.\n", i, pextend_standby->soc_io_state.io_state[i].paddr, pextend_standby->soc_io_state.io_state[i].value_mask, pextend_standby->soc_io_state.io_state[i].value);
}
}
EXSTANDBY_DBG("soc dram state as follow:\n");
EXSTANDBY_DBG(" selfresh_flag = %d.\n",
pextend_standby->soc_dram_state.selfresh_flag);
}
spin_unlock_irqrestore(&data_lock, irqflags);
return 0;
}
static DEVICE_ATTR(dram_crc_paras, S_IRUGO | S_IWUSR | S_IWGRP,
extended_standby_dram_crc_paras_show,
extended_standby_dram_crc_paras_store);
static struct attribute *g[] = {
&dev_attr_dram_crc_paras.attr,
NULL,
};
static struct attribute_group attr_group = {
.attrs = g,
};
static int __init aw_ex_standby_init(void)
{
int error = 0;
aw_ex_standby_kobj =
kobject_create_and_add("aw_ex_standby", power_kobj);
if (!aw_ex_standby_kobj)
return -ENOMEM;
error = sysfs_create_group(aw_ex_standby_kobj, &attr_group);
return error ? error : 0;
}
/*
*************************************************************
* aw_ex_standby_exit
*
*Description: exit ex_standby sub-system on platform;
*
*Arguments : none
*
*Return : none
*
*Notes :
*
*************************************************************
*/
static void __exit aw_ex_standby_exit(void)
{
pr_info("aw_ex_standby_exit!\n");
return;
}
module_param_named(aw_ex_standby_debug_mask, aw_ex_standby_debug_mask,
int, S_IRUGO | S_IWUSR);
module_init(aw_ex_standby_init);
module_exit(aw_ex_standby_exit);
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