diff options
Diffstat (limited to 'src/rv64/rv64-uart.c')
| -rw-r--r-- | src/rv64/rv64-uart.c | 52 |
1 files changed, 22 insertions, 30 deletions
diff --git a/src/rv64/rv64-uart.c b/src/rv64/rv64-uart.c index 0bc6517..a859add 100644 --- a/src/rv64/rv64-uart.c +++ b/src/rv64/rv64-uart.c @@ -1,6 +1,6 @@ /* ------------------------------------------- - Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved. + Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved. ------------------------------------------- */ @@ -11,51 +11,43 @@ /* this file handles the UART */ -static uint8_t* cb_uart_ptr = (uint8_t*)CB_UART_BASE; +static uint8_t* cb_uart_ptr = (uint8_t*) CB_UART_BASE; -utf_char_t cb_get_char(void) -{ - uintptr_t ptr = CB_UART_BASE; +utf_char_t cb_get_char(void) { + uintptr_t ptr = CB_UART_BASE; - while (!(*(((volatile uint8_t*)ptr) + 0x05) & 0x01)) - ; + while (!(*(((volatile uint8_t*) ptr) + 0x05) & 0x01)); - return (utf_char_t)*cb_uart_ptr; + return (utf_char_t) *cb_uart_ptr; } // we need that one, to avoid sending mutliple chars to UART. static boolean cb_locked_put_char = no; -void cb_put_char(utf_char_t ch) -{ - int32_t timeout = 0; +void cb_put_char(utf_char_t ch) { + int32_t timeout = 0; - while (cb_locked_put_char) - { - ++timeout; + while (cb_locked_put_char) { + ++timeout; - if (timeout > 1000000) - break; - } + if (timeout > 1000000) break; + } - cb_locked_put_char = yes; - *cb_uart_ptr = ch; - cb_locked_put_char = no; + cb_locked_put_char = yes; + *cb_uart_ptr = ch; + cb_locked_put_char = no; } /// @brief UART put string /// @param text the input text. -size_t cb_put_string(const char* text) -{ - if (text == nil) - return 0; +size_t cb_put_string(const char* text) { + if (text == nil) return 0; - size_t i = 0; + size_t i = 0; - for (; i < strlen(text); i++) - { - cb_put_char(text[i]); - } + for (; i < strlen(text); i++) { + cb_put_char(text[i]); + } - return i; + return i; } |