Thu, 06 Apr 2023 20:53:06 +0200
Set the new measured deep sleep current consumption. This is half of the Wemos D1 system.
/* * Copyright (c) 2018 Ruslan V. Uss <unclerus@gmail.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of the copyright holder nor the names of itscontributors * may be used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** * @file mcp23008.c * * ESP-IDF driver for I2C 8 bit GPIO expander MCP23008 * * Copyright (c) 2018 Ruslan V. Uss <unclerus@gmail.com> * * BSD Licensed as described in the file LICENSE */ #include <esp_log.h> #include <esp_idf_lib_helpers.h> #include "mcp23008.h" #define I2C_FREQ_HZ 1000000 // Max 1MHz for esp-idf, but device supports up to 1.7Mhz #define REG_IODIR 0x00 #define REG_IPOL 0x01 #define REG_GPINTEN 0x02 #define REG_DEFVAL 0x03 #define REG_INTCON 0x04 #define REG_IOCON 0x05 #define REG_GPPU 0x06 #define REG_INTF 0x07 #define REG_INTCAP 0x08 #define REG_GPIO 0x09 #define REG_OLAT 0x0a #define BIT_IOCON_INTPOL 1 #define BIT_IOCON_ODR 2 //#define BIT_IOCON_HAEN 3 #define BIT_IOCON_DISSLW 4 #define BIT_IOCON_SREAD 5 static const char *TAG = "mcp23008"; #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) #define BV(x) (1 << (x)) static esp_err_t read_reg(i2c_dev_t *dev, uint8_t reg, uint8_t *val) { CHECK_ARG(dev && val); I2C_DEV_TAKE_MUTEX(dev); I2C_DEV_CHECK(dev, i2c_dev_read_reg(dev, reg, val, 1)); I2C_DEV_GIVE_MUTEX(dev); return ESP_OK; } static esp_err_t write_reg(i2c_dev_t *dev, uint8_t reg, uint8_t val) { CHECK_ARG(dev); I2C_DEV_TAKE_MUTEX(dev); I2C_DEV_CHECK(dev, i2c_dev_write_reg(dev, reg, &val, 1)); I2C_DEV_GIVE_MUTEX(dev); return ESP_OK; } static esp_err_t read_reg_bit(i2c_dev_t *dev, uint8_t reg, bool *val, uint8_t bit) { CHECK_ARG(dev && val); uint8_t buf; I2C_DEV_TAKE_MUTEX(dev); I2C_DEV_CHECK(dev, i2c_dev_read_reg(dev, reg, &buf, 1)); I2C_DEV_GIVE_MUTEX(dev); *val = (buf & BV(bit)) >> bit; return ESP_OK; } static esp_err_t write_reg_bit(i2c_dev_t *dev, uint8_t reg, bool val, uint8_t bit) { CHECK_ARG(dev); uint8_t buf; I2C_DEV_TAKE_MUTEX(dev); I2C_DEV_CHECK(dev, i2c_dev_read_reg(dev, reg, &buf, 1)); buf = (buf & ~BV(bit)) | (val ? BV(bit) : 0); I2C_DEV_CHECK(dev, i2c_dev_write_reg(dev, reg, &buf, 1)); I2C_DEV_GIVE_MUTEX(dev); return ESP_OK; } /////////////////////////////////////////////////////////////////////////////// esp_err_t mcp23008_init_desc(i2c_dev_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio) { CHECK_ARG(dev); if (addr < MCP23008_I2C_ADDR_BASE || addr > MCP23008_I2C_ADDR_BASE + 7) { ESP_LOGE(TAG, "Invalid device address: 0x%02x", addr); return ESP_ERR_INVALID_ARG; } dev->port = port; dev->addr = addr; dev->cfg.sda_io_num = sda_gpio; dev->cfg.scl_io_num = scl_gpio; #if HELPER_TARGET_IS_ESP32 dev->cfg.master.clk_speed = I2C_FREQ_HZ; #endif return i2c_dev_create_mutex(dev); } esp_err_t mcp23008_free_desc(i2c_dev_t *dev) { CHECK_ARG(dev); return i2c_dev_delete_mutex(dev); } esp_err_t mcp23008_get_int_out_mode(i2c_dev_t *dev, mcp23008_int_out_mode_t *mode) { CHECK_ARG(mode); uint8_t r; CHECK(read_reg(dev, REG_IOCON, &r)); if (r & BV(BIT_IOCON_ODR)) { *mode = MCP23008_OPEN_DRAIN; return ESP_OK; } *mode = r & BV(BIT_IOCON_INTPOL) ? MCP23008_ACTIVE_HIGH : MCP23008_ACTIVE_LOW; return ESP_OK; } esp_err_t mcp23008_set_int_out_mode(i2c_dev_t *dev, mcp23008_int_out_mode_t mode) { if (mode == MCP23008_OPEN_DRAIN) return write_reg_bit(dev, REG_IOCON, true, BIT_IOCON_ODR); return write_reg_bit(dev, REG_IOCON, mode == MCP23008_ACTIVE_HIGH, BIT_IOCON_INTPOL); } esp_err_t mcp23008_port_get_mode(i2c_dev_t *dev, uint8_t *val) { return read_reg(dev, REG_IODIR, val); } esp_err_t mcp23008_port_set_mode(i2c_dev_t *dev, uint8_t val) { return write_reg(dev, REG_IODIR, val); } esp_err_t mcp23008_port_get_pullup(i2c_dev_t *dev, uint8_t *val) { return read_reg(dev, REG_GPPU, val); } esp_err_t mcp23008_port_set_pullup(i2c_dev_t *dev, uint8_t val) { return write_reg(dev, REG_GPPU, val); } esp_err_t mcp23008_port_read(i2c_dev_t *dev, uint8_t *val) { return read_reg(dev, REG_GPIO, val); } esp_err_t mcp23008_port_write(i2c_dev_t *dev, uint8_t val) { return write_reg(dev, REG_GPIO, val); } esp_err_t mcp23008_get_mode(i2c_dev_t *dev, uint8_t pin, mcp23008_gpio_mode_t *mode) { CHECK_ARG(mode && pin < 8); bool buf; CHECK(read_reg_bit(dev, REG_IODIR, &buf, pin)); *mode = buf ? MCP23008_GPIO_INPUT : MCP23008_GPIO_OUTPUT; return ESP_OK; } esp_err_t mcp23008_set_mode(i2c_dev_t *dev, uint8_t pin, mcp23008_gpio_mode_t mode) { CHECK_ARG(pin < 8); return write_reg_bit(dev, REG_IODIR, mode, pin); } esp_err_t mcp23008_get_pullup(i2c_dev_t *dev, uint8_t pin, bool *enable) { CHECK_ARG(pin < 8); return read_reg_bit(dev, REG_GPPU, enable, pin); } esp_err_t mcp23008_set_pullup(i2c_dev_t *dev, uint8_t pin, bool enable) { CHECK_ARG(pin < 8); return write_reg_bit(dev, REG_GPPU, enable, pin); } esp_err_t mcp23008_get_level(i2c_dev_t *dev, uint8_t pin, uint32_t *val) { CHECK_ARG(val && pin < 8); bool buf; CHECK(read_reg_bit(dev, REG_GPIO, &buf, pin)); *val = buf ? 1 : 0; return ESP_OK; } esp_err_t mcp23008_set_level(i2c_dev_t *dev, uint8_t pin, uint32_t val) { CHECK_ARG(pin < 8); return write_reg_bit(dev, REG_GPIO, val, pin); } esp_err_t mcp23008_port_set_interrupt(i2c_dev_t *dev, uint8_t mask, mcp23008_gpio_intr_t intr) { CHECK_ARG(dev); uint8_t int_en; CHECK(read_reg(dev, REG_GPINTEN, &int_en)); if (intr == MCP23008_INT_DISABLED) { // disable interrupts int_en &= ~mask; CHECK(write_reg(dev, REG_GPINTEN, int_en)); return ESP_OK; } uint8_t int_con; CHECK(read_reg(dev, REG_INTCON, &int_con)); if (intr == MCP23008_INT_ANY_EDGE) int_con &= ~mask; else { int_con |= mask; uint8_t int_def; CHECK(read_reg(dev, REG_DEFVAL, &int_def)); if (intr == MCP23008_INT_LOW_EDGE) int_def |= mask; else int_def &= ~mask; CHECK(write_reg(dev, REG_DEFVAL, int_def)); } CHECK(write_reg(dev, REG_INTCON, int_con)); // enable interrupts int_en |= mask; CHECK(write_reg(dev, REG_GPINTEN, int_en)); return ESP_OK; } esp_err_t mcp23008_set_interrupt(i2c_dev_t *dev, uint8_t pin, mcp23008_gpio_intr_t intr) { CHECK_ARG(pin < 8); return mcp23008_port_set_interrupt(dev, BV(pin), intr); }