X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;ds=inline;f=bertos%2Fcpu%2Favr%2Fdrv%2Ftwi_avr.c;fp=bertos%2Fcpu%2Favr%2Fdrv%2Ftwi_avr.c;h=80b97ad645b8ee63fe7b3f565baef06c0e92a3be;hb=2ec062d0fa64791fc844d8385a8cf06e8df5dab6;hp=270efe45ea4497f88dbb8c21eed686322e1875a8;hpb=4b5d9de0c1791d0d4b7dcd78cf7ef01c6f5e3481;p=bertos.git diff --git a/bertos/cpu/avr/drv/twi_avr.c b/bertos/cpu/avr/drv/twi_avr.c index 270efe45..80b97ad6 100644 --- a/bertos/cpu/avr/drv/twi_avr.c +++ b/bertos/cpu/avr/drv/twi_avr.c @@ -38,11 +38,11 @@ * \author Bernie Innocenti */ -#include "twi_avr.h" +#include "i2c_avr.h" #include "hw/hw_cpu.h" /* CLOCK_FREQ */ -#include "cfg/cfg_twi.h" +#include "cfg/cfg_i2c.h" #include #include // BV() #include @@ -65,7 +65,7 @@ * * \return true on success, false otherwise. */ -static bool twi_start(void) +static bool i2c_start(void) { TWCR = BV(TWINT) | BV(TWSTA) | BV(TWEN); WAIT_TWI_READY; @@ -85,7 +85,7 @@ static bool twi_start(void) * * \return true on success, false otherwise. */ -bool twi_start_w(uint8_t id) +bool i2c_start_w(uint8_t id) { /* * Loop on the select write sequence: when the eeprom is busy @@ -94,7 +94,7 @@ bool twi_start_w(uint8_t id) * keep trying until the eeprom responds with an ACK. */ ticks_t start = timer_clock(); - while (twi_start()) + while (i2c_start()) { TWDR = id & ~READ_BIT; TWCR = BV(TWINT) | BV(TWEN); @@ -125,9 +125,9 @@ bool twi_start_w(uint8_t id) * * \return true on success, false otherwise. */ -bool twi_start_r(uint8_t id) +bool i2c_start_r(uint8_t id) { - if (twi_start()) + if (i2c_start()) { TWDR = id | READ_BIT; TWCR = BV(TWINT) | BV(TWEN); @@ -146,7 +146,7 @@ bool twi_start_r(uint8_t id) /** * Send STOP condition. */ -void twi_stop(void) +void i2c_stop(void) { TWCR = BV(TWINT) | BV(TWEN) | BV(TWSTO); } @@ -158,7 +158,7 @@ void twi_stop(void) * * \return true on success, false on error. */ -bool twi_put(const uint8_t data) +bool i2c_put(const uint8_t data) { TWDR = data; TWCR = BV(TWINT) | BV(TWEN); @@ -179,7 +179,7 @@ bool twi_put(const uint8_t data) * * \return the byte read if ok, EOF on errors. */ -int twi_get(bool ack) +int i2c_get(bool ack) { TWCR = BV(TWINT) | BV(TWEN) | (ack ? BV(TWEA) : 0); WAIT_TWI_READY; @@ -212,13 +212,13 @@ int twi_get(bool ack) * * \return true on success, false on error. */ -bool twi_send(const void *_buf, size_t count) +bool i2c_send(const void *_buf, size_t count) { const uint8_t *buf = (const uint8_t *)_buf; while (count--) { - if (!twi_put(*buf++)) + if (!i2c_put(*buf++)) return false; } return true; @@ -237,7 +237,7 @@ bool twi_send(const void *_buf, size_t count) * * \return true on success, false on error */ -bool twi_recv(void *_buf, size_t count) +bool i2c_recv(void *_buf, size_t count) { uint8_t *buf = (uint8_t *)_buf; @@ -251,7 +251,7 @@ bool twi_recv(void *_buf, size_t count) * The last byte read does not has an ACK * to stop communication. */ - int c = twi_get(count); + int c = i2c_get(count); if (c == EOF) return false; @@ -263,12 +263,12 @@ bool twi_recv(void *_buf, size_t count) } -MOD_DEFINE(twi); +MOD_DEFINE(i2c); /** * Initialize TWI module. */ -void twi_init(void) +void i2c_init(void) { ATOMIC( /* @@ -305,5 +305,5 @@ void twi_init(void) TWSR = 0; TWCR = BV(TWEN); ); - MOD_INIT(twi); + MOD_INIT(i2c); }