diff options
Diffstat (limited to 'bsps/arm/tms570/console/printk-support.c')
| -rw-r--r-- | bsps/arm/tms570/console/printk-support.c | 75 |
1 files changed, 46 insertions, 29 deletions
diff --git a/bsps/arm/tms570/console/printk-support.c b/bsps/arm/tms570/console/printk-support.c index 3415b7d863..17c3a1f630 100644 --- a/bsps/arm/tms570/console/printk-support.c +++ b/bsps/arm/tms570/console/printk-support.c @@ -1,13 +1,17 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * * @ingroup RTEMSBSPsARMTMS570 * - * @brief definitions of serial line for debugging. + * @brief This source file contains the definition of ::BSP_output_char and + * ::BSP_poll_char. */ /* - * Copyright (c) 2014 Premysl Houdek <kom541000@gmail.com> + * Copyright (C) 2023 embedded brains GmbH & Co. KG + * Copyright (C) 2014 Premysl Houdek <kom541000@gmail.com> * * Google Summer of Code 2014 at * Czech Technical University in Prague @@ -15,19 +19,32 @@ * 166 36 Praha 6 * Czech Republic * - * Based on LPC24xx and LPC1768 BSP - * by embedded brains GmbH and others + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. * - * 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. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. */ #include <rtems/bspIo.h> #include <rtems/sysinit.h> #include <stdint.h> #include <string.h> -#include <bsp/tms570-sci.h> #include <bsp/tms570-sci-driver.h> #define TMS570_CONSOLE (&driver_context_table[0]) @@ -39,33 +56,33 @@ * * @retval Void */ -static void tms570_debug_console_putc(char ch) +static void tms570_debug_console_out(char ch) { tms570_sci_context *ctx = TMS570_CONSOLE; volatile tms570_sci_t *regs = ctx->regs; - rtems_interrupt_level level; - rtems_interrupt_disable(level); - while ( ( regs->FLR & TMS570_SCI_FLR_TXRDY ) == 0) { - rtems_interrupt_flash(level); + while ( true ) { + rtems_interrupt_level level; + + while ( ( regs->FLR & TMS570_SCI_FLR_TXRDY ) == 0) { + /* Wait */ + } + + rtems_interrupt_disable( level ); + + if ( ( regs->FLR & TMS570_SCI_FLR_TXRDY ) != 0) { + regs->TD = ch; + rtems_interrupt_enable( level ); + + break; + } + + rtems_interrupt_enable( level ); } - regs->TD = ch; + while ( ( regs->FLR & TMS570_SCI_FLR_TX_EMPTY ) == 0) { - rtems_interrupt_flash(level); + /* Wait */ } - rtems_interrupt_enable(level); -} - -/** - * @brief debug console output - * - * debug functions always use serial dev 0 peripheral - * - * @retval Void - */ -static void tms570_debug_console_out(char c) -{ - tms570_debug_console_putc(c); } static void tms570_debug_console_init(void) @@ -75,7 +92,7 @@ static void tms570_debug_console_init(void) tms570_sci_initialize(ctx); memset(&term, 0, sizeof(term)); - term.c_cflag = B115200; + term.c_ospeed = B115200; tms570_sci_set_attributes(&ctx->base, &term); BSP_output_char = tms570_debug_console_out; } |