You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
327 lines
11 KiB
327 lines
11 KiB
#pragma once
|
|
|
|
#include "common.h"
|
|
#include "esphome/components/i2c/i2c.h"
|
|
#include "esphome/core/component.h"
|
|
#include "esphome/core/esphal.h"
|
|
#include <array>
|
|
|
|
namespace esphome {
|
|
namespace xiaomi {
|
|
namespace bslamp2 {
|
|
|
|
static const uint8_t MSG_LEN = 7;
|
|
using MSG = uint8_t[MSG_LEN];
|
|
using LED = uint16_t;
|
|
|
|
// clang-format off
|
|
|
|
// Bit patterns that are used for making a front panel LED light up.
|
|
// These patterns can be bitwise OR-ed to target multiple LEDs.
|
|
static const LED LED_NONE = 0b0000110000000000;
|
|
static const LED LED_POWER = 0b0100110000000000;
|
|
static const LED LED_COLOR = 0b0001110000000000;
|
|
static const LED LED_1 = 0b0000111000000000;
|
|
static const LED LED_2 = 0b0000110100000000;
|
|
static const LED LED_3 = 0b0000110010000000;
|
|
static const LED LED_4 = 0b0000110001000000;
|
|
static const LED LED_5 = 0b0000110000100000;
|
|
static const LED LED_6 = 0b0000110000010000;
|
|
static const LED LED_7 = 0b0000110000001000;
|
|
static const LED LED_8 = 0b0000110000000100;
|
|
static const LED LED_9 = 0b0000110000000010;
|
|
static const LED LED_10 = 0b0000110000000001;
|
|
|
|
// Combinations of LEDs that are use by the original firmware to
|
|
// indicate the current brightness setting of the lamp..
|
|
static const LED LED_LEVEL_0 = LED_NONE;
|
|
static const LED LED_LEVEL_1 = LED_POWER|LED_COLOR|LED_1;
|
|
static const LED LED_LEVEL_2 = LED_POWER|LED_COLOR|LED_1|LED_2;
|
|
static const LED LED_LEVEL_3 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3;
|
|
static const LED LED_LEVEL_4 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3|LED_4;
|
|
static const LED LED_LEVEL_5 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3|LED_4|LED_5;
|
|
static const LED LED_LEVEL_6 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3|LED_4|LED_5|LED_6;
|
|
static const LED LED_LEVEL_7 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3|LED_4|LED_5|LED_6|LED_7;
|
|
static const LED LED_LEVEL_8 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3|LED_4|LED_5|LED_6|LED_7|LED_8;
|
|
static const LED LED_LEVEL_9 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3|LED_4|LED_5|LED_6|LED_7|LED_8|LED_9;
|
|
static const LED LED_LEVEL_10 = LED_POWER|LED_COLOR|LED_1|LED_2|LED_3|LED_4|LED_5|LED_6|LED_7|LED_8|LED_9|LED_10;
|
|
|
|
// Commands for the I2C interface.
|
|
static const MSG READY_FOR_EV = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01};
|
|
|
|
using EVENT = uint16_t;
|
|
|
|
// Bit flags that are used for specifying an event.
|
|
// Events are registered using the following bit pattern
|
|
// (bit 1 being the least significant bit):
|
|
//
|
|
// BITS INDICATE PATTERN RESULT
|
|
// 1 status 0 parsing event failed
|
|
// 1 parsing event successful
|
|
// 2-4 part 000 part unknown
|
|
// 001 power button
|
|
// 010 color button
|
|
// 100 slider
|
|
// 5-6 type 00 type unknown
|
|
// 01 touch
|
|
// 10 release
|
|
// 7-11 slider 00000 level known (or part is not "slider")
|
|
// level 00001 level 1
|
|
// ... up to
|
|
// 10101 level 21
|
|
//
|
|
static const EVENT FLAG_INIT = 0b00000000000;
|
|
|
|
static const EVENT FLAG_ERR = 0b00000000000;
|
|
static const EVENT FLAG_OK = 0b00000000001;
|
|
|
|
static const EVENT FLAG_PART_SHIFT = 1;
|
|
static const EVENT FLAG_PART_MASK = 0b00000001110;
|
|
static const EVENT FLAG_PART_UNKNOWN = 0b00000000000;
|
|
static const EVENT FLAG_PART_POWER = 0b00000000010;
|
|
static const EVENT FLAG_PART_COLOR = 0b00000000100;
|
|
static const EVENT FLAG_PART_SLIDER = 0b00000001000;
|
|
|
|
static const EVENT FLAG_TYPE_SHIFT = 4;
|
|
static const EVENT FLAG_TYPE_MASK = 0b00000110000;
|
|
static const EVENT FLAG_TYPE_UNKNOWN = 0b00000000000;
|
|
static const EVENT FLAG_TYPE_TOUCH = 0b00000010000;
|
|
static const EVENT FLAG_TYPE_RELEASE = 0b00000100000;
|
|
|
|
static const EVENT FLAG_LEVEL_SHIFT = 6;
|
|
static const EVENT FLAG_LEVEL_MASK = 0b11111000000;
|
|
static const EVENT FLAG_LEVEL_UNKNOWN = 0b00000000000;
|
|
|
|
// clang-format on
|
|
|
|
/**
|
|
* This class implements a parser that translates event byte codes from the
|
|
* Xiaomi Mijia Bedside Lamp 2 into usable events.
|
|
*/
|
|
class FrontPanelEventParser {
|
|
public:
|
|
/**
|
|
* Parse the provided event byte code (7 bytes long).
|
|
* Returns a unique integer event code that describes the parsed event.
|
|
*/
|
|
EVENT parse(uint8_t *m) {
|
|
EVENT ev = FLAG_INIT;
|
|
|
|
// All events use the prefix [04:04:01:00].
|
|
if (m[0] != 0x04 || m[1] != 0x04 || m[2] != 0x01 || m[3] != 0x00) {
|
|
return error_(ev, m, "prefix is not 04:04:01:00");
|
|
}
|
|
|
|
// The next byte determines the part that is touched.
|
|
// All remaining bytes specify the event for that part.
|
|
switch (m[4]) {
|
|
case 0x01: // power button
|
|
case 0x02: // color button
|
|
ev |= (m[4] == 0x01 ? FLAG_PART_POWER : FLAG_PART_COLOR);
|
|
if (m[5] == 0x01 && m[6] == (0x02 + m[4]))
|
|
ev |= FLAG_TYPE_TOUCH;
|
|
else if (m[5] == 0x02 && m[6] == (0x03 + m[4]))
|
|
ev |= FLAG_TYPE_RELEASE;
|
|
else
|
|
return error_(ev, m, "invalid event type for button");
|
|
break;
|
|
case 0x03: // slider touch
|
|
case 0x04: // slider release
|
|
ev |= FLAG_PART_SLIDER;
|
|
ev |= (m[4] == 0x03 ? FLAG_TYPE_TOUCH : FLAG_TYPE_RELEASE);
|
|
if ((m[6] - m[5] - m[4] - 0x01) != 0)
|
|
return error_(ev, m, "invalid slider level crc");
|
|
else if (m[5] > 0x16 || m[5] < 0x01)
|
|
return error_(ev, m, "out of bounds slider value");
|
|
else {
|
|
auto level = 0x17 - m[5];
|
|
ev |= (level << FLAG_LEVEL_SHIFT);
|
|
}
|
|
break;
|
|
default:
|
|
return error_(ev, m, "invalid part id");
|
|
return ev;
|
|
}
|
|
|
|
// All parsing rules passed. This event is valid.
|
|
ESP_LOGD(TAG, "Front panel I2C event parsed: code=%d", ev);
|
|
ev |= FLAG_OK;
|
|
|
|
return ev;
|
|
}
|
|
|
|
protected:
|
|
bool has_(EVENT ev, EVENT mask, EVENT flag) { return (ev & mask) == flag; }
|
|
|
|
EVENT error_(EVENT ev, uint8_t *m, const char *msg) {
|
|
ESP_LOGE(TAG, "Front panel I2C event error:");
|
|
ESP_LOGE(TAG, " Error: %s", msg);
|
|
ESP_LOGE(TAG, " Event: [%02x:%02x:%02x:%02x:%02x:%02x:%02x]", m[0], m[1], m[2], m[3], m[4], m[5], m[6]);
|
|
ESP_LOGE(TAG, " Parsed part: %s", format_part(ev));
|
|
ESP_LOGE(TAG, " Parsed event type: %s", format_event_type(ev));
|
|
if (has_(ev, FLAG_PART_MASK, FLAG_PART_SLIDER)) {
|
|
auto level = (ev & FLAG_LEVEL_MASK) >> FLAG_LEVEL_SHIFT;
|
|
if (level > 0) {
|
|
ESP_LOGE(TAG, " Parsed slider level: %d", level);
|
|
}
|
|
}
|
|
|
|
return ev;
|
|
}
|
|
|
|
const char *format_part(EVENT ev) {
|
|
if (has_(ev, FLAG_PART_MASK, FLAG_PART_POWER))
|
|
return "power button";
|
|
if (has_(ev, FLAG_PART_MASK, FLAG_PART_COLOR))
|
|
return "color button";
|
|
if (has_(ev, FLAG_PART_MASK, FLAG_PART_SLIDER))
|
|
return "slider";
|
|
return "n/a";
|
|
}
|
|
|
|
const char *format_event_type(EVENT ev) {
|
|
if (has_(ev, FLAG_TYPE_MASK, FLAG_TYPE_TOUCH))
|
|
return "touch";
|
|
if (has_(ev, FLAG_TYPE_MASK, FLAG_TYPE_RELEASE))
|
|
return "release";
|
|
return "n/a";
|
|
}
|
|
};
|
|
|
|
/**
|
|
* This is a hardware abstraction layer that communicates with with front
|
|
* panel of the Xiaomi Mijia Bedside Lamp 2.
|
|
*
|
|
* It serves as a hub component for other components that implement
|
|
* the actual buttons and slider components.
|
|
*/
|
|
class FrontPanelHAL : public Component, public i2c::I2CDevice {
|
|
public:
|
|
FrontPanelEventParser event;
|
|
|
|
/**
|
|
* Set the GPIO pin that is used by the front panel to notify the ESP
|
|
* that a touch/release event can be read using I2C.
|
|
*/
|
|
void set_trigger_pin(GPIOPin *pin) { trigger_pin_ = pin; }
|
|
|
|
void add_on_event_callback(std::function<void(EVENT)> &&callback) { event_callback_.add(std::move(callback)); }
|
|
|
|
void setup() {
|
|
ESP_LOGCONFIG(TAG, "Setting up I2C trigger pin interrupt...");
|
|
trigger_pin_->setup();
|
|
trigger_pin_->attach_interrupt(FrontPanelHAL::isr, this, FALLING);
|
|
}
|
|
|
|
void dump_config() {
|
|
ESP_LOGCONFIG(TAG, "FrontPanelHAL:");
|
|
LOG_PIN(" I2C interrupt pin: ", trigger_pin_);
|
|
}
|
|
|
|
void loop() {
|
|
// Read and publish front panel events.
|
|
auto current_event_id = event_id_;
|
|
if (current_event_id != last_event_id_) {
|
|
last_event_id_ = current_event_id;
|
|
MSG message;
|
|
if (write_bytes_raw(READY_FOR_EV, MSG_LEN) && read_bytes_raw(message, MSG_LEN)) {
|
|
auto ev = event.parse(message);
|
|
if (ev & FLAG_OK) {
|
|
event_callback_.call(ev);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Turn on one or more LEDs (leaving the state of the other LEDs intact).
|
|
* The input value is a bitwise OR-ed set of LED constants.
|
|
*/
|
|
void turn_on_leds(uint16_t leds) {
|
|
set_leds_(led_state_ | leds);
|
|
}
|
|
|
|
/**
|
|
* Turn off one or more LEDs (leaving the state of the other LEDs intact).
|
|
* The input value is a bitwise OR-ed set of LED constants.
|
|
*/
|
|
void turn_off_leds(uint16_t leds) {
|
|
set_leds_(led_state_ & ~leds);
|
|
}
|
|
|
|
/**
|
|
* Updates the state of the LEDs according to the provided input.
|
|
* The input value is a bitwise OR-ed set of LED constants, representing the
|
|
* LEDs that must be turned on. All other LEDs are turned off.
|
|
*/
|
|
void set_leds(uint16_t leds) {
|
|
set_leds_(leds);
|
|
}
|
|
|
|
/**
|
|
* Sets the front panel illumination to the provided level (0.0 - 1.0).
|
|
*
|
|
* This implements the behavior of the original firmware for representing
|
|
* the lamp's brightness.
|
|
*
|
|
* Level 0.0 means: turn off the front panel illumination.
|
|
* The other levels are translated to one of the available levels,
|
|
* represented by the level indicator (i.e. the illumination of the
|
|
* slider bar.)
|
|
*/
|
|
void set_light_level(float level) {
|
|
if (level == 0.0f)
|
|
set_leds(LED_LEVEL_0);
|
|
else if (level < 0.15)
|
|
set_leds(LED_LEVEL_1);
|
|
else if (level < 0.25)
|
|
set_leds(LED_LEVEL_2);
|
|
else if (level < 0.35)
|
|
set_leds(LED_LEVEL_3);
|
|
else if (level < 0.45)
|
|
set_leds(LED_LEVEL_4);
|
|
else if (level < 0.55)
|
|
set_leds(LED_LEVEL_5);
|
|
else if (level < 0.65)
|
|
set_leds(LED_LEVEL_6);
|
|
else if (level < 0.75)
|
|
set_leds(LED_LEVEL_7);
|
|
else if (level < 0.85)
|
|
set_leds(LED_LEVEL_8);
|
|
else if (level < 0.95)
|
|
set_leds(LED_LEVEL_9);
|
|
else
|
|
set_leds(LED_LEVEL_10);
|
|
}
|
|
|
|
protected:
|
|
GPIOPin *trigger_pin_;
|
|
static void isr(FrontPanelHAL *store);
|
|
volatile int event_id_ = 0;
|
|
int last_event_id_ = 0;
|
|
CallbackManager<void(EVENT)> event_callback_{};
|
|
|
|
MSG led_msg_ = {0x02, 0x03, 0x00, 0x00, 0x64, 0x00, 0x00};
|
|
uint16_t led_state_ = 0;
|
|
|
|
void set_leds_(uint16_t leds) {
|
|
led_state_ = 0b0000110000000000 | leds;
|
|
led_msg_[2] = led_state_ >> 8;
|
|
led_msg_[3] = led_state_ & 0xff;
|
|
write_bytes_raw(led_msg_, MSG_LEN);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* This ISR is used to handle IRQ triggers from the front panel.
|
|
*
|
|
* The front panel pulls the trigger pin low for a short period of time
|
|
* when a new event is available. All we do here to handle the interrupt,
|
|
* is increment a simple event id counter. The main loop of the component
|
|
* will take care of actually reading and processing the event.
|
|
*/
|
|
void ICACHE_RAM_ATTR HOT FrontPanelHAL::isr(FrontPanelHAL *store) { store->event_id_++; }
|
|
|
|
} // namespace bslamp2
|
|
} // namespace xiaomi
|
|
} // namespace esphome
|