diff options
Diffstat (limited to 'platforms/chibios/drivers')
-rw-r--r-- | platforms/chibios/drivers/i2c_master.c | 59 | ||||
-rw-r--r-- | platforms/chibios/drivers/i2c_master.h | 61 | ||||
-rw-r--r-- | platforms/chibios/drivers/serial.c | 19 | ||||
-rw-r--r-- | platforms/chibios/drivers/serial_usart.c | 32 |
4 files changed, 76 insertions, 95 deletions
diff --git a/platforms/chibios/drivers/i2c_master.c b/platforms/chibios/drivers/i2c_master.c index 43591d56f8..4a5d4760d0 100644 --- a/platforms/chibios/drivers/i2c_master.c +++ b/platforms/chibios/drivers/i2c_master.c @@ -27,8 +27,67 @@ #include "quantum.h" #include "i2c_master.h" #include <string.h> +#include <ch.h> #include <hal.h> +#ifndef I2C1_SCL_PIN +# define I2C1_SCL_PIN B6 +#endif +#ifndef I2C1_SDA_PIN +# define I2C1_SDA_PIN B7 +#endif + +#ifdef USE_I2CV1 +# ifndef I2C1_OPMODE +# define I2C1_OPMODE OPMODE_I2C +# endif +# ifndef I2C1_CLOCK_SPEED +# define I2C1_CLOCK_SPEED 100000 /* 400000 */ +# endif +# ifndef I2C1_DUTY_CYCLE +# define I2C1_DUTY_CYCLE STD_DUTY_CYCLE /* FAST_DUTY_CYCLE_2 */ +# endif +#else +// The default timing values below configures the I2C clock to 400khz assuming a 72Mhz clock +// For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html +# ifndef I2C1_TIMINGR_PRESC +# define I2C1_TIMINGR_PRESC 0U +# endif +# ifndef I2C1_TIMINGR_SCLDEL +# define I2C1_TIMINGR_SCLDEL 7U +# endif +# ifndef I2C1_TIMINGR_SDADEL +# define I2C1_TIMINGR_SDADEL 0U +# endif +# ifndef I2C1_TIMINGR_SCLH +# define I2C1_TIMINGR_SCLH 38U +# endif +# ifndef I2C1_TIMINGR_SCLL +# define I2C1_TIMINGR_SCLL 129U +# endif +#endif + +#ifndef I2C_DRIVER +# define I2C_DRIVER I2CD1 +#endif + +#ifdef USE_GPIOV1 +# ifndef I2C1_SCL_PAL_MODE +# define I2C1_SCL_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN +# endif +# ifndef I2C1_SDA_PAL_MODE +# define I2C1_SDA_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN +# endif +#else +// The default PAL alternate modes are used to signal that the pins are used for I2C +# ifndef I2C1_SCL_PAL_MODE +# define I2C1_SCL_PAL_MODE 4 +# endif +# ifndef I2C1_SDA_PAL_MODE +# define I2C1_SDA_PAL_MODE 4 +# endif +#endif + static uint8_t i2c_address; static const I2CConfig i2cconfig = { diff --git a/platforms/chibios/drivers/i2c_master.h b/platforms/chibios/drivers/i2c_master.h index 5f082e9d1e..deee7ecc08 100644 --- a/platforms/chibios/drivers/i2c_master.h +++ b/platforms/chibios/drivers/i2c_master.h @@ -24,66 +24,7 @@ */ #pragma once -#include <ch.h> -#include <hal.h> - -#ifndef I2C1_SCL_PIN -# define I2C1_SCL_PIN B6 -#endif -#ifndef I2C1_SDA_PIN -# define I2C1_SDA_PIN B7 -#endif - -#ifdef USE_I2CV1 -# ifndef I2C1_OPMODE -# define I2C1_OPMODE OPMODE_I2C -# endif -# ifndef I2C1_CLOCK_SPEED -# define I2C1_CLOCK_SPEED 100000 /* 400000 */ -# endif -# ifndef I2C1_DUTY_CYCLE -# define I2C1_DUTY_CYCLE STD_DUTY_CYCLE /* FAST_DUTY_CYCLE_2 */ -# endif -#else -// The default timing values below configures the I2C clock to 400khz assuming a 72Mhz clock -// For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html -# ifndef I2C1_TIMINGR_PRESC -# define I2C1_TIMINGR_PRESC 0U -# endif -# ifndef I2C1_TIMINGR_SCLDEL -# define I2C1_TIMINGR_SCLDEL 7U -# endif -# ifndef I2C1_TIMINGR_SDADEL -# define I2C1_TIMINGR_SDADEL 0U -# endif -# ifndef I2C1_TIMINGR_SCLH -# define I2C1_TIMINGR_SCLH 38U -# endif -# ifndef I2C1_TIMINGR_SCLL -# define I2C1_TIMINGR_SCLL 129U -# endif -#endif - -#ifndef I2C_DRIVER -# define I2C_DRIVER I2CD1 -#endif - -#ifdef USE_GPIOV1 -# ifndef I2C1_SCL_PAL_MODE -# define I2C1_SCL_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN -# endif -# ifndef I2C1_SDA_PAL_MODE -# define I2C1_SDA_PAL_MODE PAL_MODE_ALTERNATE_OPENDRAIN -# endif -#else -// The default PAL alternate modes are used to signal that the pins are used for I2C -# ifndef I2C1_SCL_PAL_MODE -# define I2C1_SCL_PAL_MODE 4 -# endif -# ifndef I2C1_SDA_PAL_MODE -# define I2C1_SDA_PAL_MODE 4 -# endif -#endif +#include <stdint.h> typedef int16_t i2c_status_t; diff --git a/platforms/chibios/drivers/serial.c b/platforms/chibios/drivers/serial.c index ef6f0aa8d5..17d0b32be8 100644 --- a/platforms/chibios/drivers/serial.c +++ b/platforms/chibios/drivers/serial.c @@ -179,8 +179,6 @@ void interrupt_handler(void *arg) { // wait for the sync to finish sending serial_delay(); - *trans->status = (checksum_computed == checksum_received) ? TRANSACTION_ACCEPTED : TRANSACTION_DATA_ERROR; - // end transaction serial_input(); @@ -193,17 +191,12 @@ void interrupt_handler(void *arg) { ///////// // start transaction by initiator // -// int soft_serial_transaction(int sstd_index) +// bool soft_serial_transaction(int sstd_index) // -// Returns: -// TRANSACTION_END -// TRANSACTION_NO_RESPONSE -// TRANSACTION_DATA_ERROR // this code is very time dependent, so we need to disable interrupts -int soft_serial_transaction(int sstd_index) { - if (sstd_index > NUM_TOTAL_TRANSACTIONS) return TRANSACTION_TYPE_ERROR; +bool soft_serial_transaction(int sstd_index) { + if (sstd_index > NUM_TOTAL_TRANSACTIONS) return false; split_transaction_desc_t *trans = &split_transaction_table[sstd_index]; - if (!trans->status) return TRANSACTION_TYPE_ERROR; // not registered // TODO: remove extra delay between transactions serial_delay(); @@ -226,7 +219,7 @@ int soft_serial_transaction(int sstd_index) { // slave failed to pull the line low, assume not present dprintf("serial::NO_RESPONSE\n"); chSysUnlock(); - return TRANSACTION_NO_RESPONSE; + return false; } // if the slave is present syncronize with it @@ -266,7 +259,7 @@ int soft_serial_transaction(int sstd_index) { serial_high(); chSysUnlock(); - return TRANSACTION_DATA_ERROR; + return false; } // always, release the line when not in use @@ -274,5 +267,5 @@ int soft_serial_transaction(int sstd_index) { serial_output(); chSysUnlock(); - return TRANSACTION_END; + return true; } diff --git a/platforms/chibios/drivers/serial_usart.c b/platforms/chibios/drivers/serial_usart.c index 124e4be685..42c476a374 100644 --- a/platforms/chibios/drivers/serial_usart.c +++ b/platforms/chibios/drivers/serial_usart.c @@ -36,7 +36,7 @@ static SerialDriver* serial_driver = &SERIAL_USART_DRIVER; static inline bool react_to_transactions(void); static inline bool __attribute__((nonnull)) receive(uint8_t* destination, const size_t size); static inline bool __attribute__((nonnull)) send(const uint8_t* source, const size_t size); -static inline int initiate_transaction(uint8_t sstd_index); +static inline bool initiate_transaction(uint8_t sstd_index); static inline void usart_clear(void); /** @@ -206,14 +206,12 @@ static inline bool react_to_transactions(void) { to signal that the slave is ready to receive possible transaction buffers */ sstd_index ^= HANDSHAKE_MAGIC; if (!send(&sstd_index, sizeof(sstd_index))) { - *trans->status = TRANSACTION_DATA_ERROR; return false; } /* Receive transaction buffer from the master. If this transaction requires it.*/ if (trans->initiator2target_buffer_size) { if (!receive(split_trans_initiator2target_buffer(trans), trans->initiator2target_buffer_size)) { - *trans->status = TRANSACTION_DATA_ERROR; return false; } } @@ -226,12 +224,10 @@ static inline bool react_to_transactions(void) { /* Send transaction buffer to the master. If this transaction requires it. */ if (trans->target2initiator_buffer_size) { if (!send(split_trans_target2initiator_buffer(trans), trans->target2initiator_buffer_size)) { - *trans->status = TRANSACTION_DATA_ERROR; return false; } } - *trans->status = TRANSACTION_ACCEPTED; return true; } @@ -252,11 +248,9 @@ void soft_serial_initiator_init(void) { * @brief Start transaction from the master half to the slave half. * * @param index Transaction Table index of the transaction to start. - * @return int TRANSACTION_NO_RESPONSE in case of Timeout. - * TRANSACTION_TYPE_ERROR in case of invalid transaction index. - * TRANSACTION_END in case of success. + * @return bool Indicates success of transaction. */ -int soft_serial_transaction(int index) { +bool soft_serial_transaction(int index) { /* Clear the receive queue, to start with a clean slate. * Parts of failed transactions or spurious bytes could still be in it. */ usart_clear(); @@ -266,25 +260,19 @@ int soft_serial_transaction(int index) { /** * @brief Initiate transaction to slave half. */ -static inline int initiate_transaction(uint8_t sstd_index) { +static inline bool initiate_transaction(uint8_t sstd_index) { /* Sanity check that we are actually starting a valid transaction. */ if (sstd_index >= NUM_TOTAL_TRANSACTIONS) { dprintln("USART: Illegal transaction Id."); - return TRANSACTION_TYPE_ERROR; + return false; } split_transaction_desc_t* trans = &split_transaction_table[sstd_index]; - /* Transaction is not registered. Abort. */ - if (!trans->status) { - dprintln("USART: Transaction not registered."); - return TRANSACTION_TYPE_ERROR; - } - /* Send transaction table index to the slave, which doubles as basic handshake token. */ if (!send(&sstd_index, sizeof(sstd_index))) { dprintln("USART: Send Handshake failed."); - return TRANSACTION_TYPE_ERROR; + return false; } uint8_t sstd_index_shake = 0xFF; @@ -295,14 +283,14 @@ static inline int initiate_transaction(uint8_t sstd_index) { */ if (!receive(&sstd_index_shake, sizeof(sstd_index_shake)) || (sstd_index_shake != (sstd_index ^ HANDSHAKE_MAGIC))) { dprintln("USART: Handshake failed."); - return TRANSACTION_NO_RESPONSE; + return false; } /* Send transaction buffer to the slave. If this transaction requires it. */ if (trans->initiator2target_buffer_size) { if (!send(split_trans_initiator2target_buffer(trans), trans->initiator2target_buffer_size)) { dprintln("USART: Send failed."); - return TRANSACTION_NO_RESPONSE; + return false; } } @@ -310,9 +298,9 @@ static inline int initiate_transaction(uint8_t sstd_index) { if (trans->target2initiator_buffer_size) { if (!receive(split_trans_target2initiator_buffer(trans), trans->target2initiator_buffer_size)) { dprintln("USART: Receive failed."); - return TRANSACTION_NO_RESPONSE; + return false; } } - return TRANSACTION_END; + return true; } |