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Upstream merge up to 02d44beb44

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This commit is contained in:
jonathan.liu
2019-07-11 23:21:18 -07:00
parent a0fac849eb
commit 441b212c86
4854 changed files with 157576 additions and 41541 deletions
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15
drivers/arm/i2c_master.c
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@@ -45,16 +45,14 @@ static const I2CConfig i2cconfig = {
__attribute__ ((weak))
void i2c_init(void)
{
//palSetGroupMode(GPIOB, GPIOB_PIN6 | GPIOB_PIN7, 0, PAL_MODE_INPUT);
// Try releasing special pins for a short time
palSetPadMode(GPIOB, 6, PAL_MODE_INPUT);
palSetPadMode(GPIOB, 7, PAL_MODE_INPUT);
palSetPadMode(I2C1_BANK, I2C1_SCL, PAL_MODE_INPUT);
palSetPadMode(I2C1_BANK, I2C1_SDA, PAL_MODE_INPUT);
chThdSleepMilliseconds(10);
palSetPadMode(GPIOB, 6, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP);
palSetPadMode(GPIOB, 7, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP);
palSetPadMode(I2C1_BANK, I2C1_SCL, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN);
palSetPadMode(I2C1_BANK, I2C1_SDA, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN);
//i2cInit(); //This is invoked by halInit() so no need to redo it.
}
@@ -103,8 +101,7 @@ uint8_t i2c_readReg(uint8_t devaddr, uint8_t* regaddr, uint8_t* data, uint16_t l
return i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), regaddr, 1, data, length, MS2ST(timeout));
}
// This is usually not needed. It releases the driver to allow pins to become GPIO again.
uint8_t i2c_stop(uint16_t timeout)
uint8_t i2c_stop(void)
{
i2cStop(&I2C_DRIVER);
return 0;

12
drivers/arm/i2c_master.h
View File

@@ -26,6 +26,16 @@
#include "ch.h"
#include <hal.h>
#ifndef I2C1_BANK
#define I2C1_BANK GPIOB
#endif
#ifndef I2C1_SCL
#define I2C1_SCL 6
#endif
#ifndef I2C1_SDA
#define I2C1_SDA 7
#endif
#ifndef I2C_DRIVER
#define I2C_DRIVER I2CD1
#endif
@@ -37,4 +47,4 @@ uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t ti
uint8_t i2c_transmit_receive(uint8_t address, uint8_t * tx_body, uint16_t tx_length, uint8_t * rx_body, uint16_t rx_length);
uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
uint8_t i2c_readReg(uint8_t devaddr, uint8_t* regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
uint8_t i2c_stop(uint16_t timeout);
uint8_t i2c_stop(void);