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Diffstat (limited to 'c/src/lib/libbsp/arm/rtl22xx/console/uart.c')
-rw-r--r--c/src/lib/libbsp/arm/rtl22xx/console/uart.c283
1 files changed, 0 insertions, 283 deletions
diff --git a/c/src/lib/libbsp/arm/rtl22xx/console/uart.c b/c/src/lib/libbsp/arm/rtl22xx/console/uart.c
deleted file mode 100644
index 2952e74508..0000000000
--- a/c/src/lib/libbsp/arm/rtl22xx/console/uart.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * console driver for RTL22xx UARTs
- *
- * 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>
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <bsp.h> /* Must be before libio.h */
-#include <rtems/libio.h>
-#include <termios.h>
-#include <rtems/bspIo.h>
-
-/* Put the CPU (or UART) specific header file #include here */
-#include <lpc22xx.h>
-#include "lpc22xx_uart.h"
-
-#include <libchip/serial.h>
-#include <libchip/sersupp.h>
-
-/* How many serial ports? */
-#define NUM_DEVS 1
-
-int dbg_dly;
-
-/* static function prototypes */
-static int uart_first_open(int major, int minor, void *arg);
-static int uart_last_close(int major, int minor, void *arg);
-static int uart_read(int minor);
-static ssize_t uart_write(int minor, const char *buf, size_t len);
-static void uart_init(int minor);
-static void uart_write_polled(int minor, char c);
-static int uart_set_attributes(int minor, const struct termios *t);
-
-/* These are used by code in console.c */
-unsigned long Console_Configuration_Count = NUM_DEVS;
-
-/* Pointers to functions for handling the UART. */
-const console_fns uart_fns = {
- libchip_serial_default_probe,
- uart_first_open,
- uart_last_close,
- uart_read,
- uart_write,
- uart_init,
- uart_write_polled, /* not used in this driver */
- uart_set_attributes,
- 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
- * by console.c, but may be used by drivers in libchip
- */
-console_tbl Console_Configuration_Ports[] = {
-{
- "/dev/com0", /* sDeviceName */
- SERIAL_CUSTOM, /* deviceType */
- &uart_fns, /* pDeviceFns */
- NULL, /* deviceProbe */
- NULL, /* pDeviceFlow */
- 0, /* ulMargin - NOT USED */
- 0, /* ulHysteresis - NOT USED */
- NULL, /* pDeviceParams */
- 0, /* ulCtrlPort1 - NOT USED */
- 0, /* ulCtrlPort2 - NOT USED */
- 0, /* ulDataPort - NOT USED */
- NULL, /* getRegister - NOT USED */
- NULL, /* setRegister - NOT USED */
- NULL, /* getData - NOT USED */
- NULL, /* setData - NOT USED */
- 0, /* ulClock - NOT USED */
- 0 /* ulIntVector - NOT USED */
-}
-#if 0
-{
- "/dev/com1", /* sDeviceName */
- SERIAL_CUSTOM, /* deviceType */
- &uart_fns, /* pDeviceFns */
- NULL, /* deviceProbe */
- NULL, /* pDeviceFlow */
- 0, /* ulMargin - NOT USED */
- 0, /* ulHysteresis - NOT USED */
- NULL, /* pDeviceParams */
- 0, /* ulCtrlPort1 - NOT USED */
- 0, /* ulCtrlPort2 - NOT USED */
- 0, /* ulDataPort - NOT USED */
- NULL, /* getRegister - NOT USED */
- NULL, /* setRegister - NOT USED */
- NULL, /* getData - NOT USED */
- NULL, /* setData - NOT USED */
- 0, /* ulClock - NOT USED */
- 0 /* ulIntVector - NOT USED */
-}
-#endif
-};
-
-/*
- * 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)
-{
- return 0;
-}
-
-/*
- * 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)
-{
- return 0;
-}
-
-/*
- * Read one character from UART.
- *
- * Return -1 if there's no data, otherwise return
- * the character in lowest 8 bits of returned int.
- */
-static int uart_read(int minor)
-{
- char c;
-
- switch (minor) {
- case 0:
- if (U0LSR & ULSR_RDR) {
- c = U0RBR;
- return c;
- }
- return -1;
- case 1:
- if (U1LSR & ULSR_RDR) {
- c = U1RBR;
- return c;
- }
- return -1;
- default:
- break;
- }
- printk("Unknown console minor number %d\n", minor);
- return -1;
-}
-
-/*
- * Write buffer to UART
- *
- * return 1 on success, -1 on error
- */
-static ssize_t uart_write(int minor, const char *buf, size_t len)
-{
- size_t i;
-
- switch (minor) {
- case 0:
- for (i = 0; i < len; i++) {
- while (!(U0LSR & ULSR_THRE)) /* wait for TX buffer to empty*/
- continue; /* also either WDOG() or swap()*/
- U0THR = (char) buf[i];
- }
- break;
- case 1:
- for (i = 0; i < len; i++) {
- while (!(U0LSR & ULSR_THRE)) /* wait for TX buffer to empty*/
- continue; /* also either WDOG() or swap()*/
- U0THR = (char) buf[i];
- }
- break;
- default:
- printk("Unknown console minor number %d\n", minor);
- return -1;
- }
-
- return len;
-}
-
-/* Set up the UART. */
-static void uart_init(int minor)
-{
-#if 0 //init will be done in bspstart.c
- int baud=6;
- int mode =0x03;
- if(minor==0){
- // set port pins for UART0
- PINSEL0 = (PINSEL0 & ~U0_PINMASK) | U0_PINSEL;
-
- U0IER = 0x00; // disable all interrupts
-
- // set the baudrate
- 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
-
- // set the number of characters and other
- // 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
- 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
-}
-
-/* I'm not sure this is needed for the shared console driver. */
-static void uart_write_polled(int minor, char c)
-{
- uart_write(minor, &c, 1);
-}
-
-/* This is for setting baud rate, bits, etc. */
-static int uart_set_attributes(int minor, const struct termios *t)
-{
- return 0;
-}
-
-/*
- * 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
- */
-static void _BSP_put_char( char c )
-{
- uart_write_polled(0, c);
-}
-
-BSP_output_char_function_type BSP_output_char = _BSP_put_char;
-
-static int _BSP_get_char(void)
-{
- return uart_read(0);
-}
-
-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;
- U0LCR = 0x03;
-
- for(i=0;i<10;i++){
- U0THR = 67; //send a C to see if is OK
- while ( (U0LSR&0x40)==0 );
- }
-}
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