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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-19 06:28:01 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-20 13:08:32 +0200
commitd7d66d7d4523b904c8ccc6aea3709dc0d5aa5bdc (patch)
treecaa54b4229e86a68c84ab5961af34e087dce5302 /c/src/lib/libbsp/arm/lpc32xx
parentbsps/powerpc: Move shared btimer support (diff)
downloadrtems-d7d66d7d4523b904c8ccc6aea3709dc0d5aa5bdc.tar.bz2
bsps: Move console drivers to bsps
This patch is a part of the BSP source reorganization. Update #3285.
Diffstat (limited to 'c/src/lib/libbsp/arm/lpc32xx')
-rw-r--r--c/src/lib/libbsp/arm/lpc32xx/Makefile.am8
-rw-r--r--c/src/lib/libbsp/arm/lpc32xx/console/console-config.c225
-rw-r--r--c/src/lib/libbsp/arm/lpc32xx/console/hsu.c208
3 files changed, 4 insertions, 437 deletions
diff --git a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
index 743b0722b3..d07607060d 100644
--- a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
+++ b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
@@ -59,10 +59,10 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default-handler.c
librtemsbsp_a_SOURCES += irq/irq.c
# Console
-librtemsbsp_a_SOURCES += ../../shared/console-termios-init.c
-librtemsbsp_a_SOURCES += ../../shared/console-termios.c
-librtemsbsp_a_SOURCES += console/console-config.c
-librtemsbsp_a_SOURCES += console/hsu.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/serial/console-termios-init.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/serial/console-termios.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/lpc32xx/console/console-config.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/lpc32xx/console/hsu.c
# Clock
librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/clock/clock-nxp-lpc.c
diff --git a/c/src/lib/libbsp/arm/lpc32xx/console/console-config.c b/c/src/lib/libbsp/arm/lpc32xx/console/console-config.c
deleted file mode 100644
index 17e6b0af8f..0000000000
--- a/c/src/lib/libbsp/arm/lpc32xx/console/console-config.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/**
- * @file
- *
- * @ingroup arm_lpc32xx
- *
- * @brief Console configuration.
- */
-
-/*
- * Copyright (c) 2009-2014 embedded brains GmbH. All rights reserved.
- *
- * embedded brains GmbH
- * Dornierstr. 4
- * 82178 Puchheim
- * Germany
- * <rtems@embedded-brains.de>
- *
- * 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 <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);
diff --git a/c/src/lib/libbsp/arm/lpc32xx/console/hsu.c b/c/src/lib/libbsp/arm/lpc32xx/console/hsu.c
deleted file mode 100644
index b2044e0753..0000000000
--- a/c/src/lib/libbsp/arm/lpc32xx/console/hsu.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/**
- * @file
- *
- * @ingroup arm_lpc32xx
- *
- * @brief High speed UART driver (14-clock).
- */
-
-/*
- * Copyright (c) 2010-2014 embedded brains GmbH. All rights reserved.
- *
- * embedded brains GmbH
- * Dornierstr. 4
- * 82178 Puchheim
- * Germany
- * <rtems@embedded-brains.de>
- *
- * 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 <bsp/lpc32xx.h>
-#include <bsp/irq.h>
-#include <bsp/hsu.h>
-
-#define HSU_FIFO_SIZE 64
-
-#define HSU_LEVEL_RX_MASK 0xffU
-#define HSU_LEVEL_TX_MASK 0xff00U
-#define HSU_LEVEL_TX_SHIFT 8
-
-#define HSU_RX_DATA_MASK 0xffU
-#define HSU_RX_EMPTY (1U << 8)
-#define HSU_RX_ERROR (1U << 9)
-#define HSU_RX_BREAK (1U << 10)
-
-#define HSU_IIR_TX (1U << 0)
-#define HSU_IIR_RX_TRIG (1U << 1)
-#define HSU_IIR_RX_TIMEOUT (1U << 2)
-
-#define HSU_CTRL_INTR_DISABLED 0x1280fU
-#define HSU_CTRL_RX_INTR_ENABLED 0x1284fU
-#define HSU_CTRL_RX_AND_TX_INTR_ENABLED 0x1286fU
-
-/* We are interested in RX timeout, RX trigger and TX trigger interrupts */
-#define HSU_IIR_MASK 0x7U
-
-bool lpc32xx_hsu_probe(rtems_termios_device_context *base)
-{
- lpc32xx_hsu_context *ctx = (lpc32xx_hsu_context *) base;
- volatile lpc32xx_hsu *hsu = ctx->hsu;
-
- hsu->ctrl = HSU_CTRL_INTR_DISABLED;
-
- /* Drain FIFOs */
- while (hsu->level != 0) {
- hsu->fifo;
- }
-
- return true;
-}
-
-static void lpc32xx_hsu_interrupt_handler(void *arg)
-{
- rtems_termios_tty *tty = arg;
- lpc32xx_hsu_context *ctx = rtems_termios_get_device_context(tty);
- volatile lpc32xx_hsu *hsu = ctx->hsu;
-
- /* Iterate until no more interrupts are pending */
- do {
- int rv = 0;
- int i = 0;
- char buf [HSU_FIFO_SIZE];
-
- /* Enqueue received characters */
- while (i < HSU_FIFO_SIZE) {
- uint32_t in = hsu->fifo;
-
- if ((in & HSU_RX_EMPTY) == 0) {
- if ((in & HSU_RX_BREAK) == 0) {
- buf [i] = in & HSU_RX_DATA_MASK;
- ++i;
- }
- } else {
- break;
- }
- }
- rtems_termios_enqueue_raw_characters(tty, buf, i);
-
- /* Dequeue transmitted characters */
- rv = rtems_termios_dequeue_characters(tty, (int) ctx->chars_in_transmission);
- if (rv == 0) {
- /* Nothing to transmit */
- }
- } while ((hsu->iir & HSU_IIR_MASK) != 0);
-}
-
-static bool lpc32xx_hsu_first_open(
- struct rtems_termios_tty *tty,
- rtems_termios_device_context *base,
- struct termios *term,
- rtems_libio_open_close_args_t *args
-)
-{
- lpc32xx_hsu_context *ctx = (lpc32xx_hsu_context *) base;
- volatile lpc32xx_hsu *hsu = ctx->hsu;
- rtems_status_code sc;
- bool ok;
-
- sc = rtems_interrupt_handler_install(
- ctx->irq,
- "HSU",
- RTEMS_INTERRUPT_UNIQUE,
- lpc32xx_hsu_interrupt_handler,
- tty
- );
- ok = sc == RTEMS_SUCCESSFUL;
-
- if (ok) {
- rtems_termios_set_initial_baud(tty, ctx->initial_baud);
- hsu->ctrl = HSU_CTRL_RX_INTR_ENABLED;
- }
-
- return ok;
-}
-
-static void lpc32xx_hsu_last_close(
- struct rtems_termios_tty *tty,
- rtems_termios_device_context *base,
- rtems_libio_open_close_args_t *args
-)
-{
- lpc32xx_hsu_context *ctx = (lpc32xx_hsu_context *) base;
- volatile lpc32xx_hsu *hsu = ctx->hsu;
-
- hsu->ctrl = HSU_CTRL_INTR_DISABLED;
-
- rtems_interrupt_handler_remove(
- ctx->irq,
- lpc32xx_hsu_interrupt_handler,
- tty
- );
-}
-
-static void lpc32xx_hsu_write(
- rtems_termios_device_context *base,
- const char *buf,
- size_t len
-)
-{
- lpc32xx_hsu_context *ctx = (lpc32xx_hsu_context *) base;
- volatile lpc32xx_hsu *hsu = ctx->hsu;
- size_t tx_level = (hsu->level & HSU_LEVEL_TX_MASK) >> HSU_LEVEL_TX_SHIFT;
- size_t tx_free = HSU_FIFO_SIZE - tx_level;
- size_t i = 0;
- size_t out = len > tx_free ? tx_free : len;
-
- for (i = 0; i < out; ++i) {
- hsu->fifo = buf [i];
- }
-
- ctx->chars_in_transmission = out;
-
- if (len > 0) {
- hsu->ctrl = HSU_CTRL_RX_AND_TX_INTR_ENABLED;
- } else {
- hsu->ctrl = HSU_CTRL_RX_INTR_ENABLED;
- hsu->iir = HSU_IIR_TX;
- }
-}
-
-static bool lpc32xx_hsu_set_attributes(
- rtems_termios_device_context *base,
- const struct termios *term
-)
-{
- lpc32xx_hsu_context *ctx = (lpc32xx_hsu_context *) base;
- volatile lpc32xx_hsu *hsu = ctx->hsu;
- int baud_flags = term->c_ospeed;
-
- if (baud_flags != 0) {
- int32_t baud = rtems_termios_baud_to_number(baud_flags);
-
- if (baud > 0) {
- uint32_t baud_divisor = 14 * (uint32_t) baud;
- uint32_t rate = LPC32XX_PERIPH_CLK / baud_divisor;
- uint32_t remainder = LPC32XX_PERIPH_CLK - rate * baud_divisor;
-
- if (2 * remainder >= baud_divisor) {
- ++rate;
- }
-
- hsu->rate = rate - 1;
- }
- }
-
- return true;
-}
-
-const rtems_termios_device_handler lpc32xx_hsu_fns = {
- .first_open = lpc32xx_hsu_first_open,
- .last_close = lpc32xx_hsu_last_close,
- .write = lpc32xx_hsu_write,
- .set_attributes = lpc32xx_hsu_set_attributes,
- .mode = TERMIOS_IRQ_DRIVEN
-};