| |
| /* |
| * 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 low 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 & vcc 3.3v*/ |
| 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 & vcc 3.3v*/ |
| 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 | ETH_PHY_GPIO_SRC); |
| |
| p->sources = val; |
| |
| /* Power Key: AO_GPIO[3]*/ |
| gpio = &(p->gpio_info[i]); |
| gpio->wakeup_id = POWER_KEY_WAKEUP_SRC; |
| gpio->gpio_in_idx = GPIOAO_3; |
| gpio->gpio_in_ao = 1; |
| gpio->gpio_out_idx = -1; |
| gpio->gpio_out_ao = -1; |
| gpio->irq = IRQ_AO_GPIO0_NUM; |
| gpio->trig_type = GPIO_IRQ_FALLING_EDGE; |
| p->gpio_info_count = ++i; |
| |
| /*Eth:GPIOZ_14*/ |
| gpio = &(p->gpio_info[i]); |
| gpio->wakeup_id = ETH_PHY_GPIO_SRC; |
| gpio->gpio_in_idx = GPIOZ_14; |
| gpio->gpio_in_ao = 0; |
| gpio->gpio_out_idx = -1; |
| gpio->gpio_out_ao = -1; |
| gpio->irq = IRQ_GPIO1_NUM; |
| gpio->trig_type = GPIO_IRQ_FALLING_EDGE; |
| 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_AO_GPIO0] == IRQ_AO_GPIO0_NUM) { |
| irq[IRQ_AO_GPIO0] = 0xFFFFFFFF; |
| if ((readl(AO_GPIO_I) & (1<<3)) == 0) |
| exit_reason = POWER_KEY_WAKEUP; |
| } |
| #if 0 |
| if (irq[IRQ_GPIO1] == IRQ_GPIO1_NUM) { |
| irq[IRQ_GPIO1] = 0xFFFFFFFF; |
| if (!(readl(PREG_PAD_GPIO4_I) & (0x01 << 14)) |
| && (readl(PREG_PAD_GPIO4_EN_N) & (0x01 << 14))) |
| exit_reason = ETH_PHY_GPIO; |
| } |
| #endif |
| 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; |
| } |