1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __PLAT_I2C_H 18 #define __PLAT_I2C_H 19 20 #include <gpio.h> 21 #include <platform.h> 22 #include <plat/cmsis.h> 23 #include <plat/gpio.h> 24 #include <plat/plat.h> 25 26 struct StmI2cDmaCfg { 27 uint8_t channel; 28 uint8_t stream; 29 }; 30 31 struct StmI2cGpioCfg { 32 uint8_t gpioNum; 33 enum StmGpioAltFunc func; 34 }; 35 36 struct StmI2cBoardCfg { 37 struct StmI2cGpioCfg gpioScl; 38 struct StmI2cGpioCfg gpioSda; 39 40 enum StmGpioSpeed gpioSpeed; 41 enum GpioPullMode gpioPull; 42 43 struct StmI2cDmaCfg dmaRx; 44 struct StmI2cDmaCfg dmaTx; 45 46 enum PlatSleepDevID sleepDev; 47 }; 48 49 #define I2C_DMA_BUS 0 50 51 #define I2C1_GPIO_SCL_PB6 { .gpioNum = GPIO_PB(6), .func = GPIO_AF_I2C1 } 52 #define I2C1_GPIO_SCL_PB8 { .gpioNum = GPIO_PB(8), .func = GPIO_AF_I2C1 } 53 #define I2C1_GPIO_SDA_PB7 { .gpioNum = GPIO_PB(7), .func = GPIO_AF_I2C1 } 54 #define I2C1_GPIO_SDA_PB9 { .gpioNum = GPIO_PB(9), .func = GPIO_AF_I2C1 } 55 #define I2C1_DMA_RX_CFG_A { .channel = 1, .stream = 0 } 56 #define I2C1_DMA_RX_CFG_B { .channel = 1, .stream = 5 } 57 #define I2C1_DMA_TX_CFG_A { .channel = 0, .stream = 1 } 58 #define I2C1_DMA_TX_CFG_B { .channel = 1, .stream = 6 } 59 #define I2C1_DMA_TX_CFG_C { .channel = 1, .stream = 7 } 60 61 #define I2C2_GPIO_SCL_PB10 { .gpioNum = GPIO_PB(10), .func = GPIO_AF_I2C2_A } 62 #define I2C2_GPIO_SDA_PB3 { .gpioNum = GPIO_PB(3), .func = GPIO_AF_I2C2_B } 63 #define I2C2_GPIO_SDA_PB9 { .gpioNum = GPIO_PB(9), .func = GPIO_AF_I2C2_B } 64 #define I2C2_GPIO_SDA_PB11 { .gpioNum = GPIO_PB(11), .func = GPIO_AF_I2C2_A } 65 #define I2C2_DMA_RX_CFG_A { .channel = 7, .stream = 2 } 66 #define I2C2_DMA_RX_CFG_B { .channel = 7, .stream = 3 } 67 #define I2C2_DMA_TX_CFG { .channel = 7, .stream = 7 } 68 69 #define I2C3_GPIO_SCL_PA8 { .gpioNum = GPIO_PA(8), .func = GPIO_AF_I2C3_A } 70 #define I2C3_GPIO_SDA_PB4 { .gpioNum = GPIO_PB(4), .func = GPIO_AF_I2C3_B } 71 #define I2C3_GPIO_SDA_PC9 { .gpioNum = GPIO_PC(9), .func = GPIO_AF_I2C3_A } 72 #define I2C3_DMA_RX_CFG_A { .channel = 1, .stream = 1 } 73 #define I2C3_DMA_RX_CFG_B { .channel = 3, .stream = 2 } 74 #define I2C3_DMA_TX_CFG_A { .channel = 3, .stream = 4 } 75 #define I2C3_DMA_TX_CFG_B { .channel = 6, .stream = 5 } 76 77 extern const struct StmI2cBoardCfg *boardStmI2cCfg(uint8_t busId); 78 79 #endif /* __PLAT_I2C_H */ 80