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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMLPC32XX
*
* @brief Console configuration.
*/
/*
* Copyright (C) 2009, 2014 embedded brains GmbH & Co. KG
*
* 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.
*
* 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 <libchip/ns16550.h>
#include <bsp.h>
#include <bsp/lpc32xx.h>
#include <bsp/irq.h>
#include <bsp/hsu.h>
#include <bsp/console-termios.h>
static uint8_t lpc32xx_uart_get_register(uintptr_t addr, uint8_t i)
{
volatile uint32_t *reg = (volatile uint32_t *) addr;
return (uint8_t) reg [i];
}
static void lpc32xx_uart_set_register(uintptr_t addr, uint8_t i, uint8_t val)
{
volatile uint32_t *reg = (volatile uint32_t *) addr;
reg [i] = val;
}
#ifdef LPC32XX_UART_3_BAUD
static bool lpc32xx_uart_probe_3(rtems_termios_device_context *context)
{
LPC32XX_UARTCLK_CTRL |= BSP_BIT32(0);
LPC32XX_U3CLK = LPC32XX_CONFIG_U3CLK;
LPC32XX_UART_CLKMODE = BSP_FLD32SET(LPC32XX_UART_CLKMODE, 0x2, 4, 5);
return ns16550_probe(context);
}
#endif
#ifdef LPC32XX_UART_4_BAUD
static bool lpc32xx_uart_probe_4(rtems_termios_device_context *context)
{
volatile lpc32xx_gpio *gpio = &lpc32xx.gpio;
/*
* Set GPO_21/U4_TX/LCDVD[3] to U4_TX. This works only if LCD module is
* disabled.
*/
gpio->p2_mux_set = BSP_BIT32(2);
LPC32XX_UARTCLK_CTRL |= BSP_BIT32(1);
LPC32XX_U4CLK = LPC32XX_CONFIG_U4CLK;
LPC32XX_UART_CLKMODE = BSP_FLD32SET(LPC32XX_UART_CLKMODE, 0x2, 6, 7);
return ns16550_probe(context);
}
#endif
#ifdef LPC32XX_UART_6_BAUD
static bool lpc32xx_uart_probe_6(rtems_termios_device_context *context)
{
/* Bypass the IrDA modulator/demodulator */
LPC32XX_UART_CTRL |= BSP_BIT32(5);
LPC32XX_UARTCLK_CTRL |= BSP_BIT32(3);
LPC32XX_U6CLK = LPC32XX_CONFIG_U6CLK;
LPC32XX_UART_CLKMODE = BSP_FLD32SET(LPC32XX_UART_CLKMODE, 0x2, 10, 11);
return ns16550_probe(context);
}
#endif
/* FIXME: Console selection */
#ifdef LPC32XX_UART_5_BAUD
static ns16550_context lpc32xx_uart_context_5 = {
.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART 5"),
.get_reg = lpc32xx_uart_get_register,
.set_reg = lpc32xx_uart_set_register,
.port = LPC32XX_BASE_UART_5,
.irq = LPC32XX_IRQ_UART_5,
.clock = 16 * LPC32XX_UART_5_BAUD,
.initial_baud = LPC32XX_UART_5_BAUD
};
#endif
#ifdef LPC32XX_UART_3_BAUD
static ns16550_context lpc32xx_uart_context_3 = {
.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART 3"),
.get_reg = lpc32xx_uart_get_register,
.set_reg = lpc32xx_uart_set_register,
.port = LPC32XX_BASE_UART_3,
.irq = LPC32XX_IRQ_UART_3,
.clock = 16 * LPC32XX_UART_3_BAUD,
.initial_baud = LPC32XX_UART_3_BAUD
};
#endif
#ifdef LPC32XX_UART_4_BAUD
static ns16550_context lpc32xx_uart_context_4 = {
.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART 4"),
.get_reg = lpc32xx_uart_get_register,
.set_reg = lpc32xx_uart_set_register,
.port = LPC32XX_BASE_UART_4,
.irq = LPC32XX_IRQ_UART_4,
.clock = 16 * LPC32XX_UART_4_BAUD,
.initial_baud = LPC32XX_UART_4_BAUD
};
#endif
#ifdef LPC32XX_UART_6_BAUD
static ns16550_context lpc32xx_uart_context_6 = {
.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART 6"),
.get_reg = lpc32xx_uart_get_register,
.set_reg = lpc32xx_uart_set_register,
.port = LPC32XX_BASE_UART_6,
.irq = LPC32XX_IRQ_UART_6,
.clock = 16 * LPC32XX_UART_6_BAUD,
.initial_baud = LPC32XX_UART_6_BAUD
};
#endif
#ifdef LPC32XX_UART_1_BAUD
static lpc32xx_hsu_context lpc32xx_uart_context_1 = {
.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART 1"),
.hsu = (volatile lpc32xx_hsu *) LPC32XX_BASE_UART_1,
.irq = LPC32XX_IRQ_UART_1,
.initial_baud = LPC32XX_UART_1_BAUD
};
#endif
#ifdef LPC32XX_UART_2_BAUD
static lpc32xx_hsu_context lpc32xx_uart_context_2 = {
.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART 2"),
.hsu = (volatile lpc32xx_hsu *) LPC32XX_BASE_UART_2,
.irq = LPC32XX_IRQ_UART_2,
.initial_baud = LPC32XX_UART_2_BAUD
};
#endif
#ifdef LPC32XX_UART_7_BAUD
static lpc32xx_hsu_context lpc32xx_uart_context_7 = {
.base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("UART 7"),
.hsu = (volatile lpc32xx_hsu *) LPC32XX_BASE_UART_7,
.irq = LPC32XX_IRQ_UART_7,
.initial_baud = LPC32XX_UART_7_BAUD
};
#endif
const console_device console_device_table[] = {
#ifdef LPC32XX_UART_5_BAUD
{
.device_file = "/dev/ttyS5",
.probe = console_device_probe_default,
.handler = &ns16550_handler_interrupt,
.context = &lpc32xx_uart_context_5.base
},
#endif
#ifdef LPC32XX_UART_3_BAUD
{
.device_file = "/dev/ttyS3",
.probe = lpc32xx_uart_probe_3,
.handler = &ns16550_handler_interrupt,
.context = &lpc32xx_uart_context_3.base
},
#endif
#ifdef LPC32XX_UART_4_BAUD
{
.device_file = "/dev/ttyS4",
.probe = lpc32xx_uart_probe_4,
.handler = &ns16550_handler_interrupt,
.context = &lpc32xx_uart_context_4.base
},
#endif
#ifdef LPC32XX_UART_6_BAUD
{
.device_file = "/dev/ttyS6",
.probe = lpc32xx_uart_probe_6,
.handler = &ns16550_handler_interrupt,
.context = &lpc32xx_uart_context_6.base
},
#endif
#ifdef LPC32XX_UART_1_BAUD
{
.device_file = "/dev/ttyS1",
.probe = lpc32xx_hsu_probe,
.handler = &lpc32xx_hsu_fns,
.context = &lpc32xx_uart_context_1.base
},
#endif
#ifdef LPC32XX_UART_2_BAUD
{
.device_file = "/dev/ttyS2",
.probe = lpc32xx_hsu_probe,
.handler = &lpc32xx_hsu_fns,
.context = &lpc32xx_uart_context_2.base
},
#endif
#ifdef LPC32XX_UART_7_BAUD
{
.device_file = "/dev/ttyS7",
.probe = lpc32xx_hsu_probe,
.handler = &lpc32xx_hsu_fns,
.context = &lpc32xx_uart_context_7.base
},
#endif
};
const size_t console_device_count = RTEMS_ARRAY_SIZE(console_device_table);
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