mirror of
https://github.com/phdlee/uvk5cec
synced 2024-11-21 15:39:48 +00:00
123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/* Copyright 2023 Dual Tachyon
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* https://github.com/DualTachyon
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "bsp/dp32g030/gpio.h"
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#include "bk1080.h"
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#include "driver/gpio.h"
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#include "driver/i2c.h"
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#include "driver/system.h"
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#include "misc.h"
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
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#endif
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static const uint16_t BK1080_RegisterTable[] =
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{
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0x0008, 0x1080, 0x0201, 0x0000, 0x40C0, 0x0A1F, 0x002E, 0x02FF,
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0x5B11, 0x0000, 0x411E, 0x0000, 0xCE00, 0x0000, 0x0000, 0x1000,
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0x3197, 0x0000, 0x13FF, 0x9852, 0x0000, 0x0000, 0x0008, 0x0000,
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0x51E1, 0xA8BC, 0x2645, 0x00E4, 0x1CD8, 0x3A50, 0xEAE0, 0x3000,
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0x0200, 0x0000,
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};
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static bool gIsInitBK1080;
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uint16_t BK1080_BaseFrequency;
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uint16_t BK1080_FrequencyDeviation;
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void BK1080_Init(uint16_t Frequency, bool bDoScan)
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{
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unsigned int i;
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if (bDoScan)
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{
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GPIO_ClearBit(&GPIOB->DATA, GPIOB_PIN_BK1080);
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if (!gIsInitBK1080)
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{
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for (i = 0; i < ARRAY_SIZE(BK1080_RegisterTable); i++)
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BK1080_WriteRegister(i, BK1080_RegisterTable[i]);
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SYSTEM_DelayMs(250);
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BK1080_WriteRegister(BK1080_REG_25_INTERNAL, 0xA83C);
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BK1080_WriteRegister(BK1080_REG_25_INTERNAL, 0xA8BC);
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SYSTEM_DelayMs(60);
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gIsInitBK1080 = true;
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}
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else
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{
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BK1080_WriteRegister(BK1080_REG_02_POWER_CONFIGURATION, 0x0201);
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}
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BK1080_WriteRegister(BK1080_REG_05_SYSTEM_CONFIGURATION2, 0x0A5F);
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BK1080_WriteRegister(BK1080_REG_03_CHANNEL, Frequency - 760);
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SYSTEM_DelayMs(10);
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BK1080_WriteRegister(BK1080_REG_03_CHANNEL, (Frequency - 760) | 0x8000);
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}
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else
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{
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BK1080_WriteRegister(BK1080_REG_02_POWER_CONFIGURATION, 0x0241);
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GPIO_SetBit(&GPIOB->DATA, GPIOB_PIN_BK1080);
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}
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}
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uint16_t BK1080_ReadRegister(BK1080_Register_t Register)
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{
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uint8_t Value[2];
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I2C_Start();
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I2C_Write(0x80);
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I2C_Write((Register << 1) | I2C_READ);
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I2C_ReadBuffer(Value, sizeof(Value));
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I2C_Stop();
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return (Value[0] << 8) | Value[1];
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}
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void BK1080_WriteRegister(BK1080_Register_t Register, uint16_t Value)
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{
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I2C_Start();
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I2C_Write(0x80);
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I2C_Write((Register << 1) | I2C_WRITE);
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Value = ((Value >> 8) & 0xFF) | ((Value & 0xFF) << 8);
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I2C_WriteBuffer(&Value, sizeof(Value));
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I2C_Stop();
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}
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void BK1080_Mute(bool Mute)
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{
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BK1080_WriteRegister(BK1080_REG_02_POWER_CONFIGURATION, Mute ? 0x4201 : 0x0201);
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}
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void BK1080_SetFrequency(uint16_t Frequency)
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{
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BK1080_WriteRegister(BK1080_REG_03_CHANNEL, Frequency - 760);
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SYSTEM_DelayMs(10);
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BK1080_WriteRegister(BK1080_REG_03_CHANNEL, (Frequency - 760) | 0x8000);
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}
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void BK1080_GetFrequencyDeviation(uint16_t Frequency)
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{
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BK1080_BaseFrequency = Frequency;
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BK1080_FrequencyDeviation = BK1080_ReadRegister(BK1080_REG_07) / 16;
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}
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