1 files changed, 131 insertions, 0 deletions

diff --git a/firmware/export/axp192.h b/firmware/export/axp192.h
new file mode 100644
index 0000000000..6ed278d086
--- /dev/null
+++ b/firmware/export/axp192.h
@@ -0,0 +1,131 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2021 Aidan MacDonald
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef __AXP192_H__
+#define __AXP192_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+enum {
+#define DEFREG(regname, addr) AXP_REG_##regname = addr,
+#include "axp192-defs.h"
+};
+
+enum {
+#define DEFFLD(regname, fldname, msb, lsb, ...) \
+    BM_AXP_##regname##_##fldname = ((1 << ((msb) - (lsb) + 1)) - 1) << lsb, \
+    BP_AXP_##regname##_##fldname = lsb,
+#include "axp192-defs.h"
+};
+
+enum {
+    AXP_SUPPLY_EXTEN,
+    AXP_SUPPLY_DCDC1,
+    AXP_SUPPLY_DCDC2,
+    AXP_SUPPLY_DCDC3,
+    AXP_SUPPLY_LDO2,
+    AXP_SUPPLY_LDO3,
+    AXP_SUPPLY_LDOIO0,
+    AXP_NUM_SUPPLIES,
+};
+
+enum {
+    AXP_ADC_ACIN_VOLTAGE,
+    AXP_ADC_ACIN_CURRENT,
+    AXP_ADC_VBUS_VOLTAGE,
+    AXP_ADC_VBUS_CURRENT,
+    AXP_ADC_INTERNAL_TEMP,
+    AXP_ADC_TS_INPUT,
+    AXP_ADC_GPIO0,
+    AXP_ADC_GPIO1,
+    AXP_ADC_GPIO2,
+    AXP_ADC_GPIO3,
+    AXP_ADC_BATTERY_VOLTAGE,
+    AXP_ADC_CHARGE_CURRENT,
+    AXP_ADC_DISCHARGE_CURRENT,
+    AXP_ADC_APS_VOLTAGE,
+    AXP_NUM_ADCS,
+};
+
+enum {
+    AXP_GPIO_OPEN_DRAIN_OUTPUT = 0x0,
+    AXP_GPIO_INPUT             = 0x1,
+    AXP_GPIO_SPECIAL           = 0x2,
+    AXP_GPIO_ADC_IN            = 0x4,
+    AXP_GPIO_LOW_OUTPUT        = 0x5,
+    AXP_GPIO_FLOATING          = 0x7,
+};
+
+enum {
+    /* Limit USB current consumption to 100 mA. */
+    AXP_VBUS_LIMIT_100mA = (1 << BP_AXP_VBUSIPSOUT_VHOLD_LIM) |
+                           (1 << BP_AXP_VBUSIPSOUT_VBUS_LIM) |
+                           (1 << BP_AXP_VBUSIPSOUT_LIM_100mA),
+
+    /* Limit USB current consumption to 500 mA. */
+    AXP_VBUS_LIMIT_500mA = (1 << BP_AXP_VBUSIPSOUT_VHOLD_LIM) |
+                           (1 << BP_AXP_VBUSIPSOUT_VBUS_LIM) |
+                           (0 << BP_AXP_VBUSIPSOUT_LIM_100mA),
+
+    /* No upper bound on USB current, but the current will still
+     * be reduced to maintain the bus voltage above V_hold. */
+    AXP_VBUS_UNLIMITED = (1 << BP_AXP_VBUSIPSOUT_VHOLD_LIM) |
+                         (0 << BP_AXP_VBUSIPSOUT_VBUS_LIM) |
+                         (0 << BP_AXP_VBUSIPSOUT_LIM_100mA),
+
+    /* Unlimited USB current consumption. Voltage is allowed to drop
+     * below V_hold, which may interfere with normal USB operation.
+     * This mode is really only useful with AC charging adapters. */
+    AXP_VBUS_FULLY_UNLIMITED = (0 << BP_AXP_VBUSIPSOUT_VHOLD_LIM) |
+                               (0 << BP_AXP_VBUSIPSOUT_VBUS_LIM) |
+                               (0 << BP_AXP_VBUSIPSOUT_LIM_100mA),
+};
+
+extern int axp_read(uint8_t reg);
+extern int axp_write(uint8_t reg, uint8_t value);
+extern int axp_modify(uint8_t reg, uint8_t clr, uint8_t set);
+
+extern void axp_enable_supply(int supply, bool enable);
+extern void axp_set_enabled_supplies(unsigned int supply_mask);
+extern void axp_set_supply_voltage(int supply, int output_mV);
+
+extern void axp_enable_adc(int adc, bool enable);
+extern void axp_set_enabled_adcs(unsigned int adc_mask);
+extern int axp_read_adc_raw(int adc);
+extern int axp_conv_adc(int adc, int value);
+extern int axp_read_adc(int adc);
+
+extern void axp_set_gpio_function(int gpio, int function);
+extern void axp_set_gpio_pulldown(int gpio, bool enable);
+extern int axp_get_gpio(int gpio);
+extern void axp_set_gpio(int gpio, bool enable);
+
+extern void axp_set_charge_current(int current_mA);
+extern int axp_get_charge_current(void);
+extern void axp_set_vbus_limit(int vbus_limit);
+extern void axp_set_vhold_level(int vhold_mV);
+extern bool axp_is_charging(void);
+extern unsigned int axp_power_input_status(void);
+
+extern void axp_power_off(void);
+
+#endif /* __AXP192_H__ */