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sys/riotboot: serial: add bootloader LED

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This commit is contained in:
Benjamin Valentin 2021-11-21 15:40:06 +01:00
parent f53a398bfb
commit e6a06501b8
3 changed files with 36 additions and 0 deletions
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3
bootloaders/riotboot_serial/Makefile.ci
View File

@ -1,3 +1,6 @@
BOARD_INSUFFICIENT_MEMORY := \
frdm-kw41z \
pba-d-01-kw2x \
phynode-kw41z \
usb-kw41z \
#

12
sys/include/riotboot/bootloader_selection.h
View File

@ -68,6 +68,18 @@ extern "C" {
#define BTN_BOOTLOADER_INVERTED true
#endif
/** @brief LED pin for bootloader indication
*
* This pin (typically connected to a LED) will be toggled while the bootloader is active.
* It can be used to communicate the current bootloader state to the user.
*/
#if !defined(LED_BOOTLOADER_PIN) && defined(LED0_PIN) && !defined(LED_BOOTLOADER_NONE) || DOXYGEN
#define LED_BOOTLOADER_PIN LED0_PIN
#define LED_BOOTLOADER_ON LED0_ON /**< Turn the bootloader LED on */
#define LED_BOOTLOADER_OFF LED0_OFF /**< Turn the bootloader LED off */
#define LED_BOOTLOADER_TOGGLE LED0_TOGGLE /**< Toggle the bootloader LED */
#endif
#ifdef __cplusplus
}
#endif

21
sys/riotboot/serial.c
View File

@ -69,6 +69,18 @@ static inline bool _boot_pin(void)
#endif
}
static inline void _boot_led_toggle(void)
{
#ifdef LED_BOOTLOADER_PIN
static unsigned count = RIOTBOOT_DELAY / 10;
if (--count == 0) {
count = RIOTBOOT_DELAY / 10;
LED_BOOTLOADER_TOGGLE;
}
#endif
}
/* send 'hello' byte until we get enter bootloader byte or timeout */
static bool _bootdelay(unsigned tries, volatile bool *boot_default)
{
@ -88,6 +100,7 @@ static bool _bootdelay(unsigned tries, volatile bool *boot_default)
if (_boot_pin()) {
return false;
}
_boot_led_toggle();
}
return *boot_default;
@ -238,6 +251,10 @@ int riotboot_serial_loader(void)
#ifdef BTN_BOOTLOADER_PIN
gpio_init(BTN_BOOTLOADER_PIN, BTN_BOOTLOADER_MODE);
#endif
#ifdef LED_BOOTLOADER_PIN
gpio_init(LED_BOOTLOADER_PIN, GPIO_OUT);
LED_BOOTLOADER_OFF;
#endif
uart_init(RIOTBOOT_UART_DEV, RIOTBOOT_UART_BAUDRATE,
_uart_rx_cmd, (void *)&reading);
@ -247,6 +264,10 @@ int riotboot_serial_loader(void)
return -1;
}
#ifdef LED_BOOTLOADER_ON
LED_BOOTLOADER_ON;
#endif
while (1) {
/* we can't use mutex in riotboot */