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more cleanup and style syncing

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This commit is contained in:
Hierophect 2020-01-08 13:03:25 -05:00
parent b0f08ba465
commit 90613aa5fb
4 changed files with 131 additions and 79 deletions
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80
ports/stm32f4/common-hal/busio/I2C.c
View File

@ -35,35 +35,28 @@
#include "supervisor/shared/translate.h"
#include "common-hal/microcontroller/Pin.h"
STATIC bool reserved_i2c[3];
STATIC bool never_reset[3];
#define MAX_I2C 3
STATIC bool reserved_i2c[MAX_I2C];
STATIC bool never_reset_i2c[MAX_I2C];
#define ALL_CLOCKS 0xFF
STATIC void i2c_clock_enable(uint8_t mask);
STATIC void i2c_clock_disable(uint8_t mask);
//--------
//COMMON HAL
//--------
void i2c_reset(void) {
//Note: I2Cs are also forcibly reset in construct, due to silicon error
#ifdef I2C1
reserved_i2c[0] = false;
__HAL_RCC_I2C1_CLK_DISABLE();
#endif
#ifdef I2C2
reserved_i2c[1] = false;
__HAL_RCC_I2C2_CLK_DISABLE();
#endif
#ifdef I2C3
reserved_i2c[2] = false;
__HAL_RCC_I2C3_CLK_DISABLE();
#endif
}
void common_hal_busio_i2c_never_reset(busio_i2c_obj_t *self) {
for (size_t i = 0 ; i < MP_ARRAY_SIZE(mcu_i2c_banks); i++) {
if (self->handle.Instance == mcu_i2c_banks[i]) {
never_reset[i] = true;
never_reset_pin_number(self->scl->pin->port, self->scl->pin->number);
never_reset_pin_number(self->sda->pin->port, self->scl->pin->number);
break;
uint16_t never_reset_mask = 0x00;
for(int i=0;i<MAX_I2C;i++) {
if (!never_reset_i2c[i]) {
reserved_i2c[i] = false;
} else {
never_reset_mask |= 1<<i;
}
}
spi_clock_disable(ALL_CLOCKS & ~(never_reset_mask));
}
void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
@ -85,7 +78,6 @@ void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
i2c_taken = true;
continue;
}
self->scl = &mcu_i2c_scl_list[j];
self->sda = &mcu_i2c_sda_list[i];
break;
@ -176,6 +168,18 @@ void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
claim_pin(scl);
}
void common_hal_busio_i2c_never_reset(busio_i2c_obj_t *self) {
for (size_t i = 0 ; i < MP_ARRAY_SIZE(mcu_i2c_banks); i++) {
if (self->handle.Instance == mcu_i2c_banks[i]) {
never_reset[i] = true;
never_reset_pin_number(self->scl->pin->port, self->scl->pin->number);
never_reset_pin_number(self->sda->pin->port, self->scl->pin->number);
break;
}
}
}
bool common_hal_busio_i2c_deinited(busio_i2c_obj_t *self) {
return self->sda->pin == mp_const_none;
}
@ -252,3 +256,27 @@ uint8_t common_hal_busio_i2c_read(busio_i2c_obj_t *self, uint16_t addr,
uint8_t *data, size_t len) {
return HAL_I2C_Master_Receive(&(self->handle), (uint16_t)(addr<<1), data, (uint16_t)len, 500) == HAL_OK ? 0 : MP_EIO;
}
STATIC void i2c_clock_enable(uint8_t mask) {
#ifdef I2C1
if (mask & 1<<0) __HAL_RCC_I2C1_CLK_ENABLE();
#endif
#ifdef I2C2
if (mask & 1<<1) __HAL_RCC_I2C2_CLK_ENABLE();
#endif
#ifdef I2C3
if (mask & 1<<2) __HAL_RCC_I2C3_CLK_ENABLE();
#endif
}
STATIC void i2c_clock_disable(uint8_t mask) {
#ifdef I2C1
if (mask & 1<<0) __HAL_RCC_I2C1_CLK_DISABLE();
#endif
#ifdef I2C2
if (mask & 1<<1) __HAL_RCC_I2C2_CLK_DISABLE();
#endif
#ifdef I2C3
if (mask & 1<<2) __HAL_RCC_I2C3_CLK_DISABLE();
#endif
}

62
ports/stm32f4/common-hal/busio/SPI.c
View File

@ -46,6 +46,10 @@ STATIC bool never_reset_spi[MAX_SPI];
STATIC void spi_clock_enable(uint8_t mask);
STATIC void spi_clock_disable(uint8_t mask);
//--------
//STATICS
//--------
STATIC uint32_t get_busclock(SPI_TypeDef * instance) {
//SPI2 and 3 are on PCLK1, if they exist.
#ifdef SPI2
@ -57,11 +61,41 @@ STATIC uint32_t get_busclock(SPI_TypeDef * instance) {
return HAL_RCC_GetPCLK2Freq();
}
STATIC uint32_t stm32_baud_to_spi_div(uint32_t baudrate, uint16_t * prescaler, uint32_t busclock) {
static const uint32_t baud_map[8][2] = {
{2,SPI_BAUDRATEPRESCALER_2},
{4,SPI_BAUDRATEPRESCALER_4},
{8,SPI_BAUDRATEPRESCALER_8},
{16,SPI_BAUDRATEPRESCALER_16},
{32,SPI_BAUDRATEPRESCALER_32},
{64,SPI_BAUDRATEPRESCALER_64},
{128,SPI_BAUDRATEPRESCALER_128},
{256,SPI_BAUDRATEPRESCALER_256}
};
size_t i = 0;
uint16_t divisor;
do {
divisor = baud_map[i][0];
if (baudrate >= (busclock/divisor)) {
*prescaler = divisor;
return baud_map[i][1];
}
i++;
} while (divisor != 256);
//only gets here if requested baud is lower than minimum
*prescaler = 256;
return SPI_BAUDRATEPRESCALER_256;
}
//--------
//COMMON HAL
//--------
void spi_reset(void) {
uint16_t never_reset_mask = 0x00;
for(int i=0;i<MAX_SPI;i++) {
if (!never_reset_spi[i]) {
reserved_spi[i] = 0x00;
reserved_spi[i] = false;
} else {
never_reset_mask |= 1<<i;
}
@ -202,32 +236,6 @@ void common_hal_busio_spi_deinit(busio_spi_obj_t *self) {
self->miso = mp_const_none;
}
STATIC uint32_t stm32_baud_to_spi_div(uint32_t baudrate, uint16_t * prescaler, uint32_t busclock) {
static const uint32_t baud_map[8][2] = {
{2,SPI_BAUDRATEPRESCALER_2},
{4,SPI_BAUDRATEPRESCALER_4},
{8,SPI_BAUDRATEPRESCALER_8},
{16,SPI_BAUDRATEPRESCALER_16},
{32,SPI_BAUDRATEPRESCALER_32},
{64,SPI_BAUDRATEPRESCALER_64},
{128,SPI_BAUDRATEPRESCALER_128},
{256,SPI_BAUDRATEPRESCALER_256}
};
size_t i = 0;
uint16_t divisor;
do {
divisor = baud_map[i][0];
if (baudrate >= (busclock/divisor)) {
*prescaler = divisor;
return baud_map[i][1];
}
i++;
} while (divisor != 256);
//only gets here if requested baud is lower than minimum
*prescaler = 256;
return SPI_BAUDRATEPRESCALER_256;
}
bool common_hal_busio_spi_configure(busio_spi_obj_t *self,
uint32_t baudrate, uint8_t polarity, uint8_t phase, uint8_t bits) {
//This resets the SPI, so check before updating it redundantly

22
ports/stm32f4/common-hal/busio/UART.c
View File

@ -47,13 +47,9 @@ STATIC void uart_clock_enable(uint16_t mask);
STATIC void uart_clock_disable(uint16_t mask);
STATIC void uart_assign_irq(busio_uart_obj_t* self, USART_TypeDef* USARTx);
void uart_reset(void) {
for (uint8_t i = 0; i < MAX_UART; i++) {
reserved_uart[i] = false;
MP_STATE_PORT(cpy_uart_obj_all)[i] = NULL;
}
uart_clock_disable(ALL_UARTS);
}
//--------
//STATICS
//--------
STATIC USART_TypeDef * assign_uart_or_throw(busio_uart_obj_t* self, bool pin_eval,
int uart_index, bool uart_taken) {
@ -70,6 +66,18 @@ STATIC USART_TypeDef * assign_uart_or_throw(busio_uart_obj_t* self, bool pin_eva
}
}
//--------
//COMMON HAL
//--------
void uart_reset(void) {
for (uint8_t i = 0; i < MAX_UART; i++) {
reserved_uart[i] = false;
MP_STATE_PORT(cpy_uart_obj_all)[i] = NULL;
}
uart_clock_disable(ALL_UARTS);
}
void common_hal_busio_uart_construct(busio_uart_obj_t* self,
const mcu_pin_obj_t* tx, const mcu_pin_obj_t* rx, uint32_t baudrate,
uint8_t bits, uart_parity_t parity, uint8_t stop, mp_float_t timeout,

46
ports/stm32f4/common-hal/pulseio/PWMOut.c
View File

@ -44,6 +44,10 @@ STATIC bool never_reset_tim[TIM_BANK_ARRAY_LEN];
STATIC void tim_clock_enable(uint16_t mask);
STATIC void tim_clock_disable(uint16_t mask);
//--------
//STATICS
//--------
// Get the frequency (in Hz) of the source clock for the given timer.
// On STM32F405/407/415/417 there are 2 cases for how the clock freq is set.
// If the APB prescaler is 1, then the timer clock is equal to its respective
@ -87,6 +91,10 @@ STATIC void timer_get_optimal_divisors(uint32_t*period, uint32_t*prescaler,
}
}
//--------
//COMMON HAL
//--------
void pwmout_reset(void) {
uint16_t never_reset_mask = 0x00;
for(int i=0;i<TIM_BANK_ARRAY_LEN;i++) {
@ -100,25 +108,6 @@ void pwmout_reset(void) {
tim_clock_disable(ALL_CLOCKS & ~(never_reset_mask));
}
void common_hal_pulseio_pwmout_never_reset(pulseio_pwmout_obj_t *self) {
for(size_t i = 0 ; i < TIM_BANK_ARRAY_LEN; i++) {
if (mcu_tim_banks[i] == self->handle.Instance) {
never_reset_tim[i] = true;
never_reset_pin_number(self->tim->pin->port, self->tim->pin->number);
break;
}
}
}
void common_hal_pulseio_pwmout_reset_ok(pulseio_pwmout_obj_t *self) {
for(size_t i = 0 ; i < TIM_BANK_ARRAY_LEN; i++) {
if (mcu_tim_banks[i] == self->handle.Instance) {
never_reset_tim[i] = false;
break;
}
}
}
pwmout_result_t common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
const mcu_pin_obj_t* pin,
uint16_t duty,
@ -241,6 +230,25 @@ pwmout_result_t common_hal_pulseio_pwmout_construct(pulseio_pwmout_obj_t* self,
return PWMOUT_OK;
}
void common_hal_pulseio_pwmout_never_reset(pulseio_pwmout_obj_t *self) {
for(size_t i = 0 ; i < TIM_BANK_ARRAY_LEN; i++) {
if (mcu_tim_banks[i] == self->handle.Instance) {
never_reset_tim[i] = true;
never_reset_pin_number(self->tim->pin->port, self->tim->pin->number);
break;
}
}
}
void common_hal_pulseio_pwmout_reset_ok(pulseio_pwmout_obj_t *self) {
for(size_t i = 0 ; i < TIM_BANK_ARRAY_LEN; i++) {
if (mcu_tim_banks[i] == self->handle.Instance) {
never_reset_tim[i] = false;
break;
}
}
}
bool common_hal_pulseio_pwmout_deinited(pulseio_pwmout_obj_t* self) {
return self->tim == mp_const_none;
}