blob: b95d5423d6d01b757ec8bf381a0eaeeeab69cbb0 [file] [log] [blame]
/*
* board/amlogic/txl_skt_v1/firmware/scp_task/pwr_ctrl.c
*
* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <gpio.h>
#include "pwm_ctrl.h"
#ifdef CONFIG_CEC_WAKEUP
#include <cec_tx_reg.h>
#endif
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
static void set_vddee_voltage(unsigned int target_voltage)
{
unsigned int to;
for (to = 0; to < ARRAY_SIZE(pwm_voltage_table_ee); to++) {
if (pwm_voltage_table_ee[to][1] >= target_voltage) {
break;
}
}
if (to >= ARRAY_SIZE(pwm_voltage_table_ee)) {
to = ARRAY_SIZE(pwm_voltage_table_ee) - 1;
}
writel(pwm_voltage_table_ee[to][0],AO_PWM_PWM_B);
}
static void power_off_at_24M(unsigned int suspend_from)
{
/*set gpioH_8 high to power off vcc 5v*/
writel(readl(PREG_PAD_GPIO3_EN_N) | (1 << 8), PREG_PAD_GPIO3_EN_N);
writel(readl(PERIPHS_PIN_MUX_C) & (~(0xf)), PERIPHS_PIN_MUX_C);
/*set test_n low to power off vcck*/
writel(readl(AO_GPIO_O) & (~(1 << 31)), AO_GPIO_O);
writel(readl(AO_GPIO_O_EN_N) & (~(1 << 31)), AO_GPIO_O_EN_N);
writel(readl(AO_RTI_PIN_MUX_REG1) & (~(0xf << 28)), AO_RTI_PIN_MUX_REG1);
/*step down ee voltage*/
set_vddee_voltage(CONFIG_VDDEE_SLEEP_VOLTAGE);
}
static void power_on_at_24M(unsigned int suspend_from)
{
/*step up ee voltage*/
set_vddee_voltage(CONFIG_VDDEE_INIT_VOLTAGE);
/*set test_n low to power on vcck*/
writel(readl(AO_GPIO_O) | (1 << 31), AO_GPIO_O);
writel(readl(AO_GPIO_O_EN_N) & (~(1 << 31)), AO_GPIO_O_EN_N);
writel(readl(AO_RTI_PIN_MUX_REG1) & (~(0xf << 28)), AO_RTI_PIN_MUX_REG1);
_udelay(100);
/*set gpioH_8 low to power on vcc 5v*/
writel(readl(PREG_PAD_GPIO3_EN_N) & (~(1 << 8)), PREG_PAD_GPIO3_EN_N);
writel(readl(PERIPHS_PIN_MUX_C) & (~(0xf)), PERIPHS_PIN_MUX_C);
_udelay(10000);
}
void get_wakeup_source(void *response, unsigned int suspend_from)
{
struct wakeup_info *p = (struct wakeup_info *)response;
struct wakeup_gpio_info *gpio;
unsigned val;
unsigned i = 0;
p->status = RESPONSE_OK;
val = (POWER_KEY_WAKEUP_SRC | AUTO_WAKEUP_SRC | REMOTE_WAKEUP_SRC |
ETH_PHY_WAKEUP_SRC | BT_WAKEUP_SRC);
p->sources = val;
p->gpio_info_count = i;
/*bt wake host*/
gpio = &(p->gpio_info[i]);
gpio->wakeup_id = BT_WAKEUP_SRC;
gpio->gpio_in_idx = GPIOX_18;
gpio->gpio_in_ao = 0;
gpio->gpio_out_idx = -1;
gpio->gpio_out_ao = -1;
gpio->irq = IRQ_GPIO0_NUM;
gpio->trig_type = GPIO_IRQ_FALLING_EDGE;
p->gpio_info_count = ++i;
}
extern void __switch_idle_task(void);
static unsigned int detect_key(unsigned int suspend_from)
{
int exit_reason = 0;
unsigned *irq = (unsigned *)WAKEUP_SRC_IRQ_ADDR_BASE;
unsigned char adc_key_cnt = 0;
init_remote();
saradc_enable();
#ifdef CONFIG_CEC_WAKEUP
if (hdmi_cec_func_config & 0x1) {
remote_cec_hw_reset();
cec_node_init();
}
#endif
do {
#ifdef CONFIG_CEC_WAKEUP
if (irq[IRQ_AO_CECB] == IRQ_AO_CEC2_NUM) {
irq[IRQ_AO_CECB] = 0xFFFFFFFF;
if (cec_power_on_check())
exit_reason = CEC_WAKEUP;
}
#endif
if (irq[IRQ_AO_IR_DEC] == IRQ_AO_IR_DEC_NUM) {
irq[IRQ_AO_IR_DEC] = 0xFFFFFFFF;
if (remote_detect_key())
exit_reason = REMOTE_WAKEUP;
}
if (irq[IRQ_VRTC] == IRQ_VRTC_NUM) {
irq[IRQ_VRTC] = 0xFFFFFFFF;
exit_reason = RTC_WAKEUP;
}
if (irq[IRQ_AO_TIMERA] == IRQ_AO_TIMERA_NUM) {
irq[IRQ_AO_TIMERA] = 0xFFFFFFFF;
if (check_adc_key_resume()) {
adc_key_cnt++;
/*using variable 'adc_key_cnt' to eliminate the dithering of the key*/
if (2 == adc_key_cnt)
exit_reason = POWER_KEY_WAKEUP;
} else {
adc_key_cnt = 0;
}
}
if (irq[IRQ_GPIO0] == IRQ_GPIO0_NUM) {
irq[IRQ_GPIO0] = 0xFFFFFFFF;
if (!(readl(PREG_PAD_GPIO2_I) & (0x01 << 18))
&& (readl(PREG_PAD_GPIO2_O) & (0x01 << 17))
&& !(readl(PREG_PAD_GPIO2_EN_N) & (0x01 << 17)))
exit_reason = BT_WAKEUP;
}
if (exit_reason)
break;
else
__switch_idle_task();
} while (1);
saradc_disable();
return exit_reason;
}
static void pwr_op_init(struct pwr_op *pwr_op)
{
pwr_op->power_off_at_24M = power_off_at_24M;
pwr_op->power_on_at_24M = power_on_at_24M;
pwr_op->detect_key = detect_key;
pwr_op->get_wakeup_source = get_wakeup_source;
}