/*
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* Copyright (C) 2019 Allwinner.
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* weidonghui <weidonghui@allwinnertech.com>
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*
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* SUNXI AXP Driver
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <sunxi_power/axp.h>
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#include <asm/arch/pmic_bus.h>
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#ifdef AXP_DEBUG
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#define axp_err(fmt...) tick_printf("[axp][err]: " fmt)
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#else
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#define axp_err(fmt...)
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#endif
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__attribute__((section(".data"))) static struct sunxi_pmu_dev_t *sunxi_pmu_dev =
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NULL;
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/* traverse the u-boot segment to find the pmu offset*/
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static struct sunxi_pmu_dev_t *pmu_get_axp_dev_t(void)
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{
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struct sunxi_pmu_dev_t *sunxi_pmu_dev_temp;
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struct sunxi_pmu_dev_t *sunxi_pmu_dev_start =
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ll_entry_start(struct sunxi_pmu_dev_t, pmu);
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int max = ll_entry_count(struct sunxi_pmu_dev_t, pmu);
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for (sunxi_pmu_dev_temp = sunxi_pmu_dev_start;
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sunxi_pmu_dev_temp != sunxi_pmu_dev_start + max;
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sunxi_pmu_dev_temp++) {
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if (!strncmp("pmu", sunxi_pmu_dev_temp->pmu_name, 3)) {
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if (!sunxi_pmu_dev_temp->probe()) {
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pr_msg("PMU: %s found\n",
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sunxi_pmu_dev_temp->pmu_name);
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return sunxi_pmu_dev_temp;
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}
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}
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}
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pr_msg("PMU: no found\n");
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return NULL;
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}
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/* matches chipid*/
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int pmu_probe(void)
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{
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sunxi_pmu_dev = pmu_get_axp_dev_t();
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if (sunxi_pmu_dev == NULL)
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return -1;
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return 0;
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}
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/*get axp info*/
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int pmu_get_info(char *name, unsigned char *chipid)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->get_info))
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return sunxi_pmu_dev->get_info(name, chipid);
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axp_err("not imple:%s\n", __func__);
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*name = 0;
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*chipid = 0;
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return -1;
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}
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/*Set a certain power, voltage value. */
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int pmu_set_voltage(char *name, uint vol_value, uint onoff)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->set_voltage))
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return sunxi_pmu_dev->set_voltage(name, vol_value, onoff);
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*Read a certain power, voltage value */
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int pmu_get_voltage(char *name)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->get_voltage))
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return sunxi_pmu_dev->get_voltage(name);
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*Set shutdown*/
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int pmu_set_power_off(void)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->set_power_off))
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return sunxi_pmu_dev->set_power_off();
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*Sets the state of the next mode */
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int pmu_set_sys_mode(int status)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->set_sys_mode))
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return sunxi_pmu_dev->set_sys_mode(status);
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*Force DCDC in pwm mode or not */
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int pmu_set_dcdc_mode(const char *name, int mode)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->set_dcdc_mode))
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return sunxi_pmu_dev->set_dcdc_mode(name, mode);
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*Get the current mode*/
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int pmu_get_sys_mode(void)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->get_sys_mode))
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return sunxi_pmu_dev->get_sys_mode();
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*Get the button length interrupt*/
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int pmu_get_key_irq(void)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->get_key_irq))
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return sunxi_pmu_dev->get_key_irq();
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*Set limit total voltage*/
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int pmu_set_bus_vol_limit(int vol_value)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->set_bus_vol_limit))
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return sunxi_pmu_dev->set_bus_vol_limit(vol_value);
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*get register value*/
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unsigned char pmu_get_reg_value(unsigned char reg_addr)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->get_reg_value))
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return sunxi_pmu_dev->get_reg_value(reg_addr);
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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/*set register value*/
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unsigned char pmu_set_reg_value(unsigned char reg_addr, unsigned char reg_value)
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{
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if ((sunxi_pmu_dev) && (sunxi_pmu_dev->set_reg_value))
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return sunxi_pmu_dev->set_reg_value(reg_addr, reg_value);
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axp_err("not imple:%s\n", __func__);
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return -1;
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}
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