diff options
Diffstat (limited to '')
| -rw-r--r-- | c/src/lib/libbsp/arm/rtl22xx/console/uart.c | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/c/src/lib/libbsp/arm/rtl22xx/console/uart.c b/c/src/lib/libbsp/arm/rtl22xx/console/uart.c index bdc52eda6c..f774c476bf 100644 --- a/c/src/lib/libbsp/arm/rtl22xx/console/uart.c +++ b/c/src/lib/libbsp/arm/rtl22xx/console/uart.c @@ -1,10 +1,10 @@ /* * console driver for RTL22xx UARTs * - * This driver uses the shared console driver in + * This driver uses the shared console driver in * ...../libbsp/shared/console.c * - * If you want the driver to be interrupt driven, you + * If you want the driver to be interrupt driven, you * need to write the ISR, and in the ISR insert the * chars into termios's queue. * Copyright (c) By ray <rayx.cn@gmail.com> @@ -52,8 +52,8 @@ console_data Console_Port_Data[NUM_DEVS]; rtems_device_minor_number Console_Port_Minor = 0; /* Pointers to functions for handling the UART. */ -console_fns uart_fns = -{ +console_fns uart_fns = +{ libchip_serial_default_probe, uart_first_open, uart_last_close, @@ -65,7 +65,7 @@ console_fns uart_fns = FALSE /* TRUE if interrupt driven, FALSE if not. */ }; -/* +/* * There's one item in array for each UART. * * Some of these fields are marked "NOT USED". They are not used @@ -119,25 +119,25 @@ console_tbl Console_Port_Tbl[] = { /* Functions called via termios callbacks (i.e. the ones in uart_fns */ /*********************************************************************/ -/* - * This is called the first time each device is opened. If the driver - * is interrupt driven, you should enable interrupts here. Otherwise, +/* + * This is called the first time each device is opened. If the driver + * is interrupt driven, you should enable interrupts here. Otherwise, * it's probably safe to do nothing. * * Since micromonitor already set up the UART, we do nothing. */ -static int uart_first_open(int major, int minor, void *arg) +static int uart_first_open(int major, int minor, void *arg) { return 0; } -/* - * This is called the last time each device is closed. If the driver - * is interrupt driven, you should disable interrupts here. Otherwise, +/* + * This is called the last time each device is closed. If the driver + * is interrupt driven, you should disable interrupts here. Otherwise, * it's probably safe to do nothing. */ -static int uart_last_close(int major, int minor, void *arg) +static int uart_last_close(int major, int minor, void *arg) { return 0; } @@ -149,7 +149,7 @@ static int uart_last_close(int major, int minor, void *arg) * Return -1 if there's no data, otherwise return * the character in lowest 8 bits of returned int. */ -static int uart_read(int minor) +static int uart_read(int minor) { char c; @@ -175,8 +175,8 @@ static int uart_read(int minor) } -/* - * Write buffer to UART +/* + * Write buffer to UART * * return 1 on success, -1 on error */ @@ -200,7 +200,7 @@ static int uart_write(int minor, const char *buf, int len) printk("Unknown console minor number %d\n", minor); return -1; } - + return 1; } @@ -218,7 +218,7 @@ static void uart_init(int minor) U0IER = 0x00; // disable all interrupts // set the baudrate - U0LCR = 1<<7; // select divisor latches + U0LCR = 1<<7; // select divisor latches U0DLL = (uint8_t)baud; // set for baud low byte U0DLM = (uint8_t)(baud >> 8); // set for baud high byte @@ -226,23 +226,23 @@ static void uart_init(int minor) // user specified operating parameters U0LCR = (mode & ~ULCR_DLAB_ENABLE); U0FCR = mode>>8; /*fifo mode*/ - + // set port pins for UART1 PINSEL0 = (PINSEL0 & ~U1_PINMASK) | U1_PINSEL; - + U1IER = 0x00; // disable all interrupts }else if(minor==1){ // set the baudrate - U1LCR = ULCR_DLAB_ENABLE; // select divisor latches + U1LCR = ULCR_DLAB_ENABLE; // select divisor latches U1DLL = (uint8_t)baud; // set for baud low byte U1DLM = (uint8_t)(baud >> 8); // set for baud high byte - + // set the number of characters and other // user specified operating parameters U1LCR = (mode & ~ULCR_DLAB_ENABLE); U1FCR = mode>>8;/*fifo mode*/ } - + #endif } @@ -253,7 +253,7 @@ static void uart_write_polled(int minor, char c) } /* This is for setting baud rate, bits, etc. */ -static int uart_set_attributes(int minor, const struct termios *t) +static int uart_set_attributes(int minor, const struct termios *t) { return 0; } @@ -264,7 +264,7 @@ static int uart_set_attributes(int minor, const struct termios *t) * functions use them instead. */ /***********************************************************************/ -/* +/* * Read from UART. This is used in the exit code, and can't * rely on interrupts. */ @@ -275,7 +275,7 @@ int uart_poll_read(int minor) /* - * Write a character to the console. This is used by printk() and + * Write a character to the console. This is used by printk() and * maybe other low level functions. It should not use interrupts or any * RTEMS system calls. It needs to be very simple */ @@ -300,29 +300,29 @@ BSP_polling_getchar_function_type BSP_poll_char = _BSP_get_char; * init USART 0ĄŁ8 bit, 1 Stop,No checkout, BPS115200 ****************************************************************************/ void UART0_Ini(void) -{ +{ long Fdiv; int i; PINSEL0 = 0x00000005; // I/O to UART0 U0LCR = 0x83; // DLAB = 1 Fdiv = (Fpclk >>4) / UART_BPS; // configure BPS - U0DLM = Fdiv/256; - U0DLL = Fdiv%256; + U0DLM = Fdiv/256; + U0DLL = Fdiv%256; U0LCR = 0x03; for(i=0;i<10;i++){ U0THR = 67; //send a C to see if is OK while( (U0LSR&0x40)==0 ); - } + } } - + /**************************************************************************** *Send a Byte ****************************************************************************/ void UART0_SendByte(char data) -{ - U0THR = data; +{ + U0THR = data; while( (U0LSR&0x40)==0 ); } |