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[l1] fix whitespace and missing license info

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Earlier additions to the L1 support were not correctly using linux
coding guidelines as specified in /HACKING.

Some examples were also missing license information.
This commit is contained in:
Karl Palsson
2013-01-22 21:51:24 +00:00
parent 20bfcaeb1c
commit 48eed286b9
6 changed files with 200 additions and 165 deletions
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88
examples/stm32/l1/stm32l-discovery/usart/usart.c
View File

@@ -22,59 +22,63 @@
#include <libopencm3/stm32/l1/gpio.h>
#include <libopencm3/stm32/usart.h>
void clock_setup(void) {
/* We are running on MSI after boot. */
/* Enable GPIOD clock for LED & USARTs. */
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_GPIOAEN);
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_GPIOBEN);
void clock_setup(void)
{
/* We are running on MSI after boot. */
/* Enable GPIOD clock for LED & USARTs. */
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_GPIOAEN);
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_GPIOBEN);
/* Enable clocks for USART2. */
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN);
/* Enable clocks for USART2. */
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USART2EN);
}
void usart_setup(void) {
/* Setup USART2 parameters. */
usart_set_baudrate(USART2, 38400);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_STOPBITS_1);
usart_set_mode(USART2, USART_MODE_TX);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
void usart_setup(void)
{
/* Setup USART2 parameters. */
usart_set_baudrate(USART2, 38400);
usart_set_databits(USART2, 8);
usart_set_stopbits(USART2, USART_STOPBITS_1);
usart_set_mode(USART2, USART_MODE_TX);
usart_set_parity(USART2, USART_PARITY_NONE);
usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART2);
/* Finally enable the USART. */
usart_enable(USART2);
}
void gpio_setup(void) {
/* Setup GPIO pin GPIO7 on GPIO port B for Green LED. */
gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO7);
void gpio_setup(void)
{
/* Setup GPIO pin GPIO7 on GPIO port B for Green LED. */
gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO7);
/* Setup GPIO pins for USART2 transmit. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO2);
/* Setup GPIO pins for USART2 transmit. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO2);
/* Setup USART2 TX pin as alternate function. */
gpio_set_af(GPIOA, GPIO_AF7, GPIO2);
/* Setup USART2 TX pin as alternate function. */
gpio_set_af(GPIOA, GPIO_AF7, GPIO2);
}
int main(void) {
int i, j = 0, c = 0;
int main(void)
{
int i, j = 0, c = 0;
clock_setup();
gpio_setup();
usart_setup();
clock_setup();
gpio_setup();
usart_setup();
/* Blink the LED (PD12) on the board with every transmitted byte. */
while (1) {
gpio_toggle(GPIOB, GPIO7); /* LED on/off */
usart_send_blocking(USART2, c + '0'); /* USART2: Send byte. */
c = (c == 9) ? 0 : c + 1; /* Increment c. */
if ((j++ % 80) == 0) { /* Newline after line full. */
usart_send_blocking(USART2, '\r');
usart_send_blocking(USART2, '\n');
}
for (i = 0; i < 100000; i++) /* Wait a bit. */
__asm__("NOP");
}
/* Blink the LED (PD12) on the board with every transmitted byte. */
while (1) {
gpio_toggle(GPIOB, GPIO7); /* LED on/off */
usart_send_blocking(USART2, c + '0'); /* USART2: Send byte. */
c = (c == 9) ? 0 : c + 1; /* Increment c. */
if ((j++ % 80) == 0) { /* Newline after line full. */
usart_send_blocking(USART2, '\r');
usart_send_blocking(USART2, '\n');
}
for (i = 0; i < 100000; i++) /* Wait a bit. */
__asm__("NOP");
}
return 0;
return 0;
}