Tasmota/tasmota/xlgt_08_bp5758d.ino

194 lines
7.0 KiB
C++

/*
xlgt_08_bp5758d.ino - bp5758d five channel led support for Tasmota
Copyright (C) 2022 Theo Arends and oomg
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_LIGHT
#ifdef USE_BP5758D
/*********************************************************************************************\
* BP5758D RGBCW Led bulbs commonly used by Tuya hardware
*
* Example configuration for a Fitop RGBCCT filament light bulb:
* {"NAME":"Fitop Filament RGBCCT","GPIO":[1,1,0,1,1,0,0,0,8416,0,8384,0,0,0],"FLAG":0,"BASE":18,"CMND":"RGBWWTable 255,109,245,255,255"}
\*********************************************************************************************/
#define XLGT_08 8
// Layout: Bits B[7:8]=10 (address selection identification bits), B[5:6] sleep mode if set to 00, B[0:4] Address selection
#define BP5758D_ADDR_SLEEP 0x86 //10 00 0110: Sleep mode bits set (OUT1 gray-scale level setup selected, ignored by chip)
#define BP5758D_ADDR_SETUP 0x90 //10 01 0000: OUT1-5 enable/disable setup - used during init
#define BP5758D_ADDR_OUT1_CR 0x91 //10 01 0001: OUT1 current range
#define BP5758D_ADDR_OUT2_CR 0x92 //10 01 0010: OUT2 current range
#define BP5758D_ADDR_OUT3_CR 0x93 //10 01 0011: OUT3 current range
#define BP5758D_ADDR_OUT4_CR 0x94 //10 01 0100: OUT4 current range
#define BP5758D_ADDR_OUT5_CR 0x95 //10 01 0101: OUT5 current range
#define BP5758D_ADDR_OUT1_GL 0x96 //10 01 0110: OUT1 gray-scale level
#define BP5758D_ADDR_OUT2_GL 0x98 //10 01 1000: OUT2 gray-scale level
#define BP5758D_ADDR_OUT3_GL 0x9A //10 01 1010: OUT3 gray-scale level
#define BP5758D_ADDR_OUT4_GL 0x9C //10 01 1100: OUT4 gray-scale level
#define BP5758D_ADDR_OUT5_GL 0x9E //10 01 1110: OUT5 gray-scale level
// Output enabled (OUT1-5, represented by lower 5 bits)
#define BP5758D_ENABLE_OUTPUTS_ALL 0x1F
// Current values: Bit 6 to 0 represent 30mA, 32mA, 16mA, 8mA, 4mA, 2mA, 1mA respectively
#define BP5758D_10MA 0x0A // 0 0001010
#define BP5758D_14MA 0x0E // 0 0001110
#define BP5758D_15MA 0x0F // 0 0001111
#define BP5758D_65MA 0x63 // 0 1100011
#define BP5758D_90MA 0x7C // 0 1111100
struct BP5758D {
uint8_t clk = 0;
uint8_t data = 0;
uint8_t current;
} Bp5758d;
/*********************************************************************************************\
* Bp5758d code - inspired by SM2135 and github.com/dbuezas/esphome-bp5758
\*********************************************************************************************/
const uint8_t BP5758D_DELAY = 2;
void Bp5758dInit(void) {
pinMode(Bp5758d.data, OUTPUT);
pinMode(Bp5758d.clk, OUTPUT);
Bp5758dStop();
}
void Bp5758dWrite(uint8_t value) {
for (int bit_idx = 7; bit_idx >= 0; bit_idx--) {
bool bit = bitRead(value, bit_idx);
digitalWrite(Bp5758d.data, bit);
delayMicroseconds(BP5758D_DELAY);
digitalWrite(Bp5758d.clk, HIGH);
delayMicroseconds(BP5758D_DELAY);
digitalWrite(Bp5758d.clk, LOW);
delayMicroseconds(BP5758D_DELAY);
}
// Wait for ACK
pinMode(Bp5758d.data, INPUT);
digitalWrite(Bp5758d.clk, HIGH);
delayMicroseconds(BP5758D_DELAY);
digitalWrite(Bp5758d.clk, LOW);
delayMicroseconds(BP5758D_DELAY);
pinMode(Bp5758d.data, OUTPUT);
}
void Bp5758dStart(uint8_t addr) {
digitalWrite(Bp5758d.data, LOW);
delayMicroseconds(BP5758D_DELAY);
digitalWrite(Bp5758d.clk, LOW);
delayMicroseconds(BP5758D_DELAY);
Bp5758dWrite(addr);
}
void Bp5758dStop(void) {
digitalWrite(Bp5758d.clk, HIGH);
delayMicroseconds(BP5758D_DELAY);
digitalWrite(Bp5758d.data, HIGH);
delayMicroseconds(BP5758D_DELAY);
}
/********************************************************************************************/
bool Bp5758dSetChannels(void) {
uint16_t *cur_col_10 = (uint16_t*)XdrvMailbox.command;
// If we receive 0 for all channels, we'll assume that the lightbulb is off, and activate BP5758d's sleep mode.
if (cur_col_10[0]==0 && cur_col_10[1]==0 && cur_col_10[2]==0 && cur_col_10[3]==0 && cur_col_10[4]==0) {
Bp5758dStart(BP5758D_ADDR_SLEEP);
Bp5758dStop();
return true;
}
// Even though we could address changing channels only, in practice we observed that the lightbulb always sets all channels.
Bp5758dStart(BP5758D_ADDR_OUT1_GL);
// Brigtness values are transmitted as two bytes. The light-bulb accepts a 10-bit integer (0-1023) as an input value.
// The first 5bits of this input are transmitted in second byte, the second 5bits in the first byte.
Bp5758dWrite((uint8_t)(cur_col_10[0] & 0x1F)); //Red
Bp5758dWrite((uint8_t)(cur_col_10[0] >> 5));
Bp5758dWrite((uint8_t)(cur_col_10[1] & 0x1F)); //Green
Bp5758dWrite((uint8_t)(cur_col_10[1] >> 5));
Bp5758dWrite((uint8_t)(cur_col_10[2] & 0x1F)); //Blue
Bp5758dWrite((uint8_t)(cur_col_10[2] >> 5));
Bp5758dWrite((uint8_t)(cur_col_10[4] & 0x1F)); //Cold
Bp5758dWrite((uint8_t)(cur_col_10[4] >> 5));
Bp5758dWrite((uint8_t)(cur_col_10[3] & 0x1F)); //Warm
Bp5758dWrite((uint8_t)(cur_col_10[3] >> 5));
Bp5758dStop();
return true;
}
void Bp5758dModuleSelected(void)
{
if (PinUsed(GPIO_BP5758D_CLK) && PinUsed(GPIO_BP5758D_DAT)) {
Bp5758d.clk = Pin(GPIO_BP5758D_CLK);
Bp5758d.data = Pin(GPIO_BP5758D_DAT);
// For it's init sequence, BP5758D just sets all fields
Bp5758dInit();
Bp5758dStart(BP5758D_ADDR_SETUP);
// Output enabled: enable all outputs since we're using a RGBCW light
Bp5758dWrite(BP5758D_ENABLE_OUTPUTS_ALL);
// Set currents for OUT1-OUT5
Bp5758dWrite(BP5758D_14MA);
Bp5758dWrite(BP5758D_14MA);
Bp5758dWrite(BP5758D_14MA);
Bp5758dWrite(BP5758D_14MA);
Bp5758dWrite(BP5758D_14MA);
// Set grayscale levels ouf all outputs to 0
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dWrite(0x00);
Bp5758dStop();
TasmotaGlobal.light_type = LT_RGBWC;
TasmotaGlobal.light_driver = XLGT_08;
AddLog(LOG_LEVEL_DEBUG, PSTR("LGT: BP5758D Found"));
}
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xlgt08(uint8_t function)
{
bool result = false;
switch (function) {
case FUNC_SET_CHANNELS:
result = Bp5758dSetChannels();
break;
case FUNC_MODULE_INIT:
Bp5758dModuleSelected();
break;
}
return result;
}
#endif // USE_BP5758D
#endif // USE_LIGHT