diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/gumstix/console/ffuart.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/gumstix/console/ffuart.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/c/src/lib/libbsp/arm/gumstix/console/ffuart.c b/c/src/lib/libbsp/arm/gumstix/console/ffuart.c deleted file mode 100644 index 335fc6f4de..0000000000 --- a/c/src/lib/libbsp/arm/gumstix/console/ffuart.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Console driver for pxa255 full function port by Yang Xi <hiyangxi@gmail.com> - * Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.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> -#include <rtems/libio.h> -#include <termios.h> - -#include <pxa255.h> -#include <ffuart.h> -#include <rtems/bspIo.h> -#include <libchip/serial.h> -#include <libchip/sersupp.h> - -volatile int dbg_dly; - -/* static function prototypes */ -static int ffuart_first_open(int major, int minor, void *arg); -static int ffuart_last_close(int major, int minor, void *arg); -static int ffuart_read(int minor); -static ssize_t ffuart_write(int minor, const char *buf, size_t len); -static void ffuart_init(int minor); -static void ffuart_write_polled(int minor, char c); -static int ffuart_set_attributes(int minor, const struct termios *t); - -/* Pointers to functions for handling the UART. */ -const console_fns ffuart_fns = -{ - libchip_serial_default_probe, - ffuart_first_open, - ffuart_last_close, - ffuart_read, - ffuart_write, - ffuart_init, - ffuart_write_polled, /* not used in this driver */ - ffuart_set_attributes, - FALSE /* TRUE if interrupt driven, FALSE if not. */ -}; - - -/* - * This is called the first time each device is opened. Since - * the driver is polled, we don't have to do anything. If the driver - * were interrupt driven, we'd enable interrupts here. - */ -static int ffuart_first_open(int major, int minor, void *arg) -{ - return 0; -} - - -/* - * This is called the last time each device is closed. Since - * the driver is polled, we don't have to do anything. If the driver - * were interrupt driven, we'd disable interrupts here. - */ -static int ffuart_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 ffuart_read(int minor) -{ - char c; - console_tbl *console_entry; - ffuart_reg_t *ffuart; - - console_entry = BSP_get_uart_from_minor(minor); - - if (console_entry == NULL) { - return -1; - } - - ffuart = (ffuart_reg_t *)console_entry->ulCtrlPort1; - - if (!(ffuart->lsr & FULL_RECEIVE)) { - return -1; - } - - c = ffuart->rbr & 0xff; - - return c; -} - - -/* - * Write buffer to UART - * - * return 1 on success, -1 on error - */ -static ssize_t ffuart_write(int minor, const char *buf, size_t len) -{ - size_t i, x; - char c; - console_tbl *console_entry; - ffuart_reg_t *ffuart; - - console_entry = BSP_get_uart_from_minor(minor); - - if (console_entry == NULL) { - return -1; - } - - ffuart = (ffuart_reg_t *)console_entry->ulCtrlPort1; - - for (i = 0; i < len; i++) { - - while(1) { - if (ffuart->lsr & SEND_EMPTY) { - break; - } - } - - c = (char) buf[i]; -#if ON_SKYEYE != 1 - if(c=='\n'){ - ffuart->rbr = '\r'; - for (x = 0; x < 100; x++) { - dbg_dly++; /* using a global so this doesn't get optimized out */ - } - while(1){ - if(ffuart->lsr & SEND_EMPTY){ - break; - } - } - } -#endif - ffuart->rbr = c; - - /* the TXRDY flag does not seem to update right away (is this true?) */ - /* so we wait a bit before continuing */ - for (x = 0; x < 100; x++) { - dbg_dly++; /* using a global so this doesn't get optimized out */ - } - } - - return 1; -} - - -static void ffuart_init(int minor) -{ - - - console_tbl *console_entry; - ffuart_reg_t *ffuart; - unsigned int divisor; - - console_entry = BSP_get_uart_from_minor(minor); - - - - if (console_entry == NULL) { - return; - } - - ffuart = (ffuart_reg_t *)console_entry->ulCtrlPort1; - ffuart->lcr |= DLAB; - /*Set the Bound*/ - ffuart->lcr |= DLAB; - divisor = FREQUENCY_UART / (115200*16); - ffuart->rbr = divisor & 0xff; - ffuart->ier = (divisor >> 8)&0xff; - /*Disable FIFO*/ - ffuart->iir = 0; - ffuart->lcr &=~DLAB; - /*Enable UART*/ - ffuart->ier = 0x40; - ffuart->lcr = EIGHT_BITS_NOPARITY_1STOPBIT; - -} - -/* I'm not sure this is needed for the shared console driver. */ -static void ffuart_write_polled(int minor, char c) -{ - ffuart_write(minor, &c, 1); -} - -/* This is for setting baud rate, bits, etc. */ -static int ffuart_set_attributes(int minor, const struct termios *t) -{ - return 0; -} - -/***********************************************************************/ -/* - * The following functions are not used by TERMIOS, but other RTEMS - * functions use them instead. - */ -/***********************************************************************/ -/* - * Read from UART. This is used in the exit code, and can't - * rely on interrupts. - */ -static int ffuart_poll_read(int minor) -{ - return ffuart_read(minor); -} - - -/* - * 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 ) { - ffuart_write_polled(0, c); -} - -static int _BSP_poll_char(void) { - return ffuart_poll_read(0); -} - -BSP_output_char_function_type BSP_output_char = _BSP_put_char; -BSP_polling_getchar_function_type BSP_poll_char = _BSP_poll_char; |