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[Style] Fixed style in the newly added F3 code.

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This commit is contained in:
Piotr Esden-Tempski
2013-07-04 21:10:56 -07:00
parent b6231dbb49
commit 62e6635992
16 changed files with 693 additions and 584 deletions
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257
lib/stm32/f3/i2c.c
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@@ -107,7 +107,7 @@ mode, or simply release the bus if in Slave mode.
void i2c_send_stop(uint32_t i2c)
{
I2C_CR2(i2c) |= I2C_CR2_STOP;
I2C_CR2(i2c) |= I2C_CR2_STOP;
}
/*---------------------------------------------------------------------------*/
@@ -173,166 +173,174 @@ void i2c_send_data(uint32_t i2c, uint8_t data)
*/
uint8_t i2c_get_data(uint32_t i2c)
{
return(I2C_RXDR(i2c) & 0xff);
return I2C_RXDR(i2c) & 0xff;
}
void i2c_enable_analog_filter(uint32_t i2c)
{
I2C_CR1(i2c) &= ~I2C_CR1_ANFOFF;
I2C_CR1(i2c) &= ~I2C_CR1_ANFOFF;
}
void i2c_disable_analog_filter(uint32_t i2c)
{
I2C_CR1(i2c) |= I2C_CR1_ANFOFF;
I2C_CR1(i2c) |= I2C_CR1_ANFOFF;
}
void i2c_set_digital_filter(uint32_t i2c, uint8_t dnf_setting)
{
I2C_CR1(i2c) = (I2C_CR1(i2c) & ~I2C_CR1_DNF_MASK) | dnf_setting;
I2C_CR1(i2c) = (I2C_CR1(i2c) & ~I2C_CR1_DNF_MASK) | dnf_setting;
}
/* t_presc= (presc+1)*t_i2cclk */
void i2c_set_prescaler(uint32_t i2c, uint8_t presc)
{
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_PRESC_MASK) | (presc << I2C_TIMINGR_PRESC_SHIFT);
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_PRESC_MASK) |
(presc << I2C_TIMINGR_PRESC_SHIFT);
}
void i2c_set_data_setup_time(uint32_t i2c, uint8_t s_time)
{
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SCLDEL_MASK) | (s_time << I2C_TIMINGR_SCLDEL_SHIFT);
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SCLDEL_MASK) |
(s_time << I2C_TIMINGR_SCLDEL_SHIFT);
}
void i2c_set_data_hold_time(uint32_t i2c, uint8_t h_time)
{
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SDADEL_MASK) | (h_time << I2C_TIMINGR_SDADEL_SHIFT);
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SDADEL_MASK) |
(h_time << I2C_TIMINGR_SDADEL_SHIFT);
}
void i2c_set_scl_high_period(uint32_t i2c, uint8_t period)
{
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SCLH_MASK) | (period << I2C_TIMINGR_SCLH_SHIFT);
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SCLH_MASK) |
(period << I2C_TIMINGR_SCLH_SHIFT);
}
void i2c_set_scl_low_period(uint32_t i2c, uint8_t period)
{
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SCLL_MASK) | (period << I2C_TIMINGR_SCLL_SHIFT);
I2C_TIMINGR(i2c) = (I2C_TIMINGR(i2c) & ~I2C_TIMINGR_SCLL_MASK) |
(period << I2C_TIMINGR_SCLL_SHIFT);
}
void i2c_enable_stretching(uint32_t i2c)
{
I2C_CR1(i2c) &= ~I2C_CR1_NOSTRETCH;
I2C_CR1(i2c) &= ~I2C_CR1_NOSTRETCH;
}
void i2c_disable_stretching(uint32_t i2c)
{
I2C_CR1(i2c) |= I2C_CR1_NOSTRETCH;
I2C_CR1(i2c) |= I2C_CR1_NOSTRETCH;
}
void i2c_100khz_i2cclk8mhz(uint32_t i2c)
{
i2c_set_prescaler(i2c, 1);
i2c_set_scl_low_period(i2c, 0x13);
i2c_set_scl_high_period(i2c, 0xF);
i2c_set_data_hold_time(i2c, 0x2);
i2c_set_data_setup_time(i2c, 0x4);
i2c_set_prescaler(i2c, 1);
i2c_set_scl_low_period(i2c, 0x13);
i2c_set_scl_high_period(i2c, 0xF);
i2c_set_data_hold_time(i2c, 0x2);
i2c_set_data_setup_time(i2c, 0x4);
}
void i2c_set_7bit_addr_mode(uint32_t i2c)
{
I2C_CR2(i2c) &= ~I2C_CR2_ADD10;
I2C_CR2(i2c) &= ~I2C_CR2_ADD10;
}
void i2c_set_10bit_addr_mode(uint32_t i2c)
{
I2C_CR2(i2c) |= I2C_CR2_ADD10;
I2C_CR2(i2c) |= I2C_CR2_ADD10;
}
void i2c_set_7bit_address(uint32_t i2c, uint8_t addr)
{
I2C_CR2(i2c) = (I2C_CR2(i2c) & ~I2C_CR2_SADD_7BIT_MASK) | ((addr & 0x7F) << I2C_CR2_SADD_7BIT_SHIFT);
I2C_CR2(i2c) = (I2C_CR2(i2c) & ~I2C_CR2_SADD_7BIT_MASK) |
((addr & 0x7F) << I2C_CR2_SADD_7BIT_SHIFT);
}
void i2c_set_10bit_address(uint32_t i2c, uint16_t addr)
{
I2C_CR2(i2c) = (I2C_CR2(i2c) & ~I2C_CR2_SADD_10BIT_MASK) | ((addr & 0x3FF) << I2C_CR2_SADD_10BIT_SHIFT);
I2C_CR2(i2c) = (I2C_CR2(i2c) & ~I2C_CR2_SADD_10BIT_MASK) |
((addr & 0x3FF) << I2C_CR2_SADD_10BIT_SHIFT);
}
void i2c_set_write_transfer_dir(uint32_t i2c)
{
I2C_CR2(i2c) &= ~I2C_CR2_RD_WRN;
I2C_CR2(i2c) &= ~I2C_CR2_RD_WRN;
}
void i2c_set_read_transfer_dir(uint32_t i2c)
{
I2C_CR2(i2c) |= I2C_CR2_RD_WRN;
I2C_CR2(i2c) |= I2C_CR2_RD_WRN;
}
void i2c_set_bytes_to_transfer(uint32_t i2c, uint32_t n_bytes)
{
I2C_CR2(i2c) = (I2C_CR2(i2c) & ~I2C_CR2_NBYTES_MASK) | (n_bytes << I2C_CR2_NBYTES_SHIFT);
I2C_CR2(i2c) = (I2C_CR2(i2c) & ~I2C_CR2_NBYTES_MASK) |
(n_bytes << I2C_CR2_NBYTES_SHIFT);
}
uint8_t i2c_is_start(uint32_t i2c)
{
if ((I2C_CR2(i2c) & I2C_CR2_START) != 0) {
return(1);
} else {
return(0);
}
if ((I2C_CR2(i2c) & I2C_CR2_START) != 0) {
return 1;
}
return 0;
}
void i2c_enable_autoend(uint32_t i2c)
{
I2C_CR2(i2c) |= I2C_CR2_AUTOEND;
I2C_CR2(i2c) |= I2C_CR2_AUTOEND;
}
void i2c_disable_autoend(uint32_t i2c)
{
I2C_CR2(i2c) &= ~I2C_CR2_AUTOEND;
I2C_CR2(i2c) &= ~I2C_CR2_AUTOEND;
}
uint8_t i2c_nack(uint32_t i2c)
{
if ((I2C_ISR(i2c) & I2C_ISR_NACKF) != 0) {
return(1);
} else {
return(0);
}
if ((I2C_ISR(i2c) & I2C_ISR_NACKF) != 0) {
return 1;
}
return 0;
}
uint8_t i2c_busy(uint32_t i2c)
{
if ((I2C_ISR(i2c) & I2C_ISR_BUSY) != 0) {
return(1);
} else {
return(0);
}
if ((I2C_ISR(i2c) & I2C_ISR_BUSY) != 0) {
return 1;
}
return 0;
}
uint8_t i2c_transmit_int_status(uint32_t i2c)
{
if ((I2C_ISR(i2c) & I2C_ISR_TXIS) != 0) {
return(1);
} else {
return(0);
}
if ((I2C_ISR(i2c) & I2C_ISR_TXIS) != 0) {
return 1;
}
return 0;
}
uint8_t i2c_transfer_complete(uint32_t i2c)
{
if ((I2C_ISR(i2c) & I2C_ISR_TC) != 0) {
return(1);
} else {
return(0);
}
if ((I2C_ISR(i2c) & I2C_ISR_TC) != 0) {
return 1;
}
return 0;
}
uint8_t i2c_received_data(uint32_t i2c)
{
if ((I2C_ISR(i2c) & I2C_ISR_RXNE) != 0) {
return(1);
} else {
return(0);
}
if ((I2C_ISR(i2c) & I2C_ISR_RXNE) != 0) {
return 1;
}
return 0;
}
@@ -398,78 +406,79 @@ void i2c_disable_txdma(uint32_t i2c)
I2C_CR1(i2c) &= ~I2C_CR1_TXDMAEN;
}
void write_i2c(uint32_t i2c, uint8_t i2c_addr, uint8_t reg, uint8_t size, uint8_t *data) {
int wait;
int i;
while (i2c_busy(i2c) == 1) {}
while (i2c_is_start(i2c) == 1) {}
/*Setting transfer properties*/
i2c_set_bytes_to_transfer(i2c, size+1);
i2c_set_7bit_address(i2c, (i2c_addr & 0x7F));
i2c_set_write_transfer_dir(i2c);
i2c_enable_autoend(i2c);
/*start transfer*/
i2c_send_start(i2c);
wait=true;
while (wait) {
if (i2c_transmit_int_status(i2c)) {
wait=false;
}
while (i2c_nack(i2c)){}
}
i2c_send_data(i2c, reg);
for (i=0; i<size; i++) {
wait=true;
while (wait) {
if (i2c_transmit_int_status(i2c)) {
wait=false;
}
while (i2c_nack(i2c)){}
}
i2c_send_data(i2c, data[i]);
}
}
void read_i2c(uint32_t i2c, uint8_t i2c_addr, uint8_t reg, uint8_t size, uint8_t *data)
void write_i2c(uint32_t i2c, uint8_t i2c_addr, uint8_t reg, uint8_t size,
uint8_t *data)
{
int wait;
int i;
while (i2c_busy(i2c) == 1) {}
while (i2c_is_start(i2c) == 1) {}
/*Setting transfer properties*/
i2c_set_bytes_to_transfer(i2c, 1);
i2c_set_7bit_address(i2c, i2c_addr);
i2c_set_write_transfer_dir(i2c);
i2c_disable_autoend(i2c);
/*start transfer*/
i2c_send_start(i2c);
int wait;
int i;
while (i2c_busy(i2c) == 1);
while (i2c_is_start(i2c) == 1);
/*Setting transfer properties*/
i2c_set_bytes_to_transfer(i2c, size + 1);
i2c_set_7bit_address(i2c, (i2c_addr & 0x7F));
i2c_set_write_transfer_dir(i2c);
i2c_enable_autoend(i2c);
/*start transfer*/
i2c_send_start(i2c);
wait=true;
while (wait)
{
if (i2c_transmit_int_status(i2c)) {
wait=false;
}
while (i2c_nack(i2c)){} /* Some error */
}
i2c_send_data(i2c, reg);
wait = true;
while (wait) {
if (i2c_transmit_int_status(i2c)) {
wait = false;
}
while (i2c_nack(i2c));
}
while (i2c_is_start(i2c) == 1) {}
/*Setting transfer properties*/
i2c_set_bytes_to_transfer(i2c, size);
i2c_set_7bit_address(i2c, i2c_addr);
i2c_set_read_transfer_dir(i2c);
i2c_enable_autoend(i2c);
/*start transfer*/
i2c_send_start(i2c);
for (i=0; i<size; i++) {
while (i2c_received_data(i2c) == 0) {}
data[i]=i2c_get_data(i2c);
}
i2c_send_data(i2c, reg);
for (i = 0; i < size; i++) {
wait = true;
while (wait) {
if (i2c_transmit_int_status(i2c)) {
wait = false;
}
while (i2c_nack(i2c));
}
i2c_send_data(i2c, data[i]);
}
}
void read_i2c(uint32_t i2c, uint8_t i2c_addr, uint8_t reg, uint8_t size,
uint8_t *data)
{
int wait;
int i;
while (i2c_busy(i2c) == 1);
while (i2c_is_start(i2c) == 1);
/*Setting transfer properties*/
i2c_set_bytes_to_transfer(i2c, 1);
i2c_set_7bit_address(i2c, i2c_addr);
i2c_set_write_transfer_dir(i2c);
i2c_disable_autoend(i2c);
/*start transfer*/
i2c_send_start(i2c);
wait = true;
while (wait) {
if (i2c_transmit_int_status(i2c)) {
wait = false;
}
while (i2c_nack(i2c)); /* Some error */
}
i2c_send_data(i2c, reg);
while (i2c_is_start(i2c) == 1);
/*Setting transfer properties*/
i2c_set_bytes_to_transfer(i2c, size);
i2c_set_7bit_address(i2c, i2c_addr);
i2c_set_read_transfer_dir(i2c);
i2c_enable_autoend(i2c);
/*start transfer*/
i2c_send_start(i2c);
for (i = 0; i < size; i++) {
while (i2c_received_data(i2c) == 0);
data[i] = i2c_get_data(i2c);
}
}
/**@}*/