drivers/serial:support arm cmsdk drivers

Signed-off-by: anjiahao <anjiahao@xiaomi.com>

drivers/serial/CMakeLists.txt

@@ -26,6 +26,10 @@ if(CONFIG_SERIAL_GDBSTUB)
   list(APPEND SRCS serial_gdbstub.c)
 endif()
 
+if(CONFIG_CMSDK_UART)
+  list(APPEND SRCS serial_cmsdk.c)
+endif()
+
 if(CONFIG_SERIAL_RXDMA)
   list(APPEND SRCS serial_dma.c)
 elseif(CONFIG_SERIAL_TXDMA)

drivers/serial/Kconfig

@@ -61,6 +61,15 @@ if UART_PL011
 source "drivers/serial/Kconfig-pl011"
 endif
 
+menuconfig CMSDK_UART
+	bool "CMSDK UART Chip support"
+	select ARCH_HAVE_SERIAL_TERMIOS
+	default n
+
+if CMSDK_UART
+source "drivers/serial/Kconfig-cmsdk"
+endif # CMSDK_UART
+
 menuconfig 16550_UART
 	bool "16550 UART Chip support"
 	select ARCH_HAVE_SERIAL_TERMIOS

drivers/serial/Kconfig-cmsdk

@@ -0,0 +1,150 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if CMSDK_UART
+
+config CMSDK_UART0
+	bool "CMSDK UART0"
+	default n
+
+if CMSDK_UART0
+
+config CMSDK_UART0_BASE
+	hex "CMSDK UART0 base address"
+
+config CMSDK_UART0_CLOCK
+	int "CMSDK UART0 clock"
+
+config CMSDK_UART0_TX_IRQ
+	int "CMSDK UART0 TX IRQ number"
+
+config CMSDK_UART0_RX_IRQ
+	int "CMSDK UART0 RX IRQ number"
+
+config CMSDK_UART0_OV_IRQ
+	int "CMSDK UART0 OVERRUN IRQ number"
+
+config CMSDK_UART0_BAUD
+	int "CMSDK UART0 BAUD"
+	default 115200
+
+config CMSDK_UART0_RXBUFSIZE
+	int "CMSDK UART0 RX buffer size"
+	default 256
+	---help---
+		CMSDK UART0 RX buffer size.  Default: 256
+
+config CMSDK_UART0_TXBUFSIZE
+	int "CMSDK UART0 TX buffer size"
+	default 256
+	---help---
+		CMSDK UART0 TX buffer size.  Default: 256
+
+endif # CMSDK_UART0
+
+config CMSDK_UART1
+	bool "CMSDK UART1"
+	default n
+
+if CMSDK_UART1
+
+config CMSDK_UART1_BASE
+	hex "CMSDK UART1 base address"
+
+config CMSDK_UART1_CLOCK
+	int "CMSDK UART1 clock"
+
+config CMSDK_UART1_TX_IRQ
+	int "CMSDK UART1 TX IRQ number"
+
+config CMSDK_UART1_RX_IRQ
+	int "CMSDK UART1 RX IRQ number"
+
+config CMSDK_UART1_OV_IRQ
+	int "CMSDK UART1 OVERRUN IRQ number"
+
+config CMSDK_UART1_BAUD
+	int "CMSDK UART1 BAUD"
+	default 115200
+
+config CMSDK_UART1_RXBUFSIZE
+	int "CMSDK UART1 RX buffer size"
+	default 256
+	---help---
+		CMSDK UART1 RX buffer size.  Default: 256
+
+config CMSDK_UART1_TXBUFSIZE
+	int "CMSDK UART1 TX buffer size"
+	default 256
+	---help---
+		CMSDK UART1 TX buffer size.  Default: 256
+
+endif # CMSDK_UART1
+
+config CMSDK_UART2
+	bool "CMSDK UART2"
+	default n
+
+if CMSDK_UART2
+
+config CMSDK_UART2_BASE
+	hex "CMSDK UART2 base address"
+
+config CMSDK_UART2_CLOCK
+	hex "CMSDK UART2 clock"
+
+config CMSDK_UART2_TX_IRQ
+	int "CMSDK UART2 TX IRQ number"
+
+config CMSDK_UART2_RX_IRQ
+	int "CMSDK UART2 RX IRQ number"
+
+config CMSDK_UART2_OV_IRQ
+	int "CMSDK UART2 OVERRUN IRQ number"
+
+config CMSDK_UART2_BAUD
+	int "CMSDK UART2 BAUD"
+	default 115200
+
+config CMSDK_UART2_RXBUFSIZE
+	int "CMSDK UART2 RX buffer size"
+	default 256
+	---help---
+		CMSDK UART2 RX buffer size.  Default: 256
+
+config CMSDK_UART2_TXBUFSIZE
+	int "CMSDK UART2 TX buffer size"
+	default 256
+	---help---
+		CMSDK UART2 TX buffer size.  Default: 256
+
+endif # CMSDK_UART2
+
+choice
+	prompt "CMSDK Serial Console"
+	default CMSDK_NO_SERIAL_CONSOLE
+	depends on DEV_CONSOLE
+
+config CMSDK_UART0_SERIAL_CONSOLE
+	bool "CMSDK UART0 serial console"
+	depends on CMSDK_UART0
+	select SERIAL_CONSOLE
+
+config CMSDK_UART1_SERIAL_CONSOLE
+	bool "CMSDK UART1 serial console"
+	depends on CMSDK_UART1
+	select SERIAL_CONSOLE
+
+config CMSDK_UART2_SERIAL_CONSOLE
+	bool "CMSDK UART2 serial console"
+	depends on CMSDK_UART2
+	select SERIAL_CONSOLE
+
+config CMSDK_NO_SERIAL_CONSOLE
+	bool "No CMSDK serial console"
+
+endchoice # CMSDK Serial Console
+
+endif # CMSDK_UART

drivers/serial/Make.defs

@@ -26,6 +26,10 @@ ifeq ($(CONFIG_SERIAL_GDBSTUB),y)
   CSRCS += serial_gdbstub.c
 endif
 
+ifeq ($(CONFIG_CMSDK_UART),y)
+  CSRCS += serial_cmsdk.c
+endif
+
 ifeq ($(CONFIG_SERIAL_RXDMA),y)
   CSRCS += serial_dma.c
 else ifeq ($(CONFIG_SERIAL_TXDMA),y)

include/nuttx/serial/uart_cmsdk.h

@@ -0,0 +1,113 @@
+/****************************************************************************
+ * include/nuttx/serial/uart_cmsdk.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_NUTTX_SERIAL_UART_CMSDK_H
+#define __INCLUDE_NUTTX_SERIAL_UART_CMSDK_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Register offsets */
+
+#define UART_RBR_OFFSET                   0 /* Receiver Buffer Register */
+#define UART_THR_OFFSET                   0 /* Transmit Holding Register */
+#define UART_STATE_OFFSET                 1 /* Interrupt State Register */
+#define UART_CTRL_OFFSET                  2 /* Interrupt Control Register */
+#define UART_INTSTS_OFFSET                3 /* Interrupt Status Clear Register */
+#define UART_BAUDDIV_OFFSET               4 /* Baud rate divider Register */
+
+/* Register bit definitions */
+
+#define UART_STATE_TX_BUF_FULL            (1 << 0)
+#define UART_STATE_RX_BUF_FULL            (1 << 1)
+#define UART_STATE_TX_BUF_OVERRUN         (1 << 2)
+#define UART_STATE_RX_BUF_OVERRUN         (1 << 3)
+
+#define UART_CTRL_TX_ENABLE               (1 << 0)
+#define UART_CTRL_RX_ENABLE               (1 << 1)
+#define UART_CTRL_TX_INT_ENABLE           (1 << 2)
+#define UART_CTRL_RX_INT_ENABLE           (1 << 3)
+#define UART_CTRL_TX_OVERRUN_INT_ENABLE   (1 << 4)
+#define UART_CTRL_RX_OVERRUN_INT_ENABLE   (1 << 5)
+#define UART_CTRL_TSTMODE_ENABLE          (1 << 6)
+#define UART_CTRL_ALLIE                   (0x3C)
+
+#define UART_INTSTATUS_TX                 (1 << 0)
+#define UART_INTSTATUS_RX                 (1 << 1)
+#define UART_INTSTATUS_TX_OVERRUN         (1 << 2)
+#define UART_INTSTATUS_RX_OVERRUN         (1 << 3)
+
+#define UART_BAUDDIV_MIN                  (16)
+#define UART_BAUDDIV_MAX                  (0xfffff)
+
+#if defined(CONFIG_CMSDK_UART0_SERIAL_CONSOLE) && defined(CONFIG_CMSDK_UART0)
+#  undef CONFIG_CMSDK_UART1_SERIAL_CONSOLE
+#  undef CONFIG_CMSDK_UART2_SERIAL_CONSOLE
+#  define HAVE_CMSDK_CONSOLE               1
+#elif defined(CONFIG_CMSDK_UART1_SERIAL_CONSOLE) && defined(CONFIG_CMSDK_UART1)
+#  undef CONFIG_CMSDK_UART0_SERIAL_CONSOLE
+#  undef CONFIG_CMSDK_UART2_SERIAL_CONSOLE
+#  define HAVE_CMSDK_CONSOLE               1
+#elif defined(CONFIG_CMSDK_UART2_SERIAL_CONSOLE) && defined(CONFIG_CMSDK_UART2)
+#  undef CONFIG_CMSDK_UART0_SERIAL_CONSOLE
+#  undef CONFIG_CMSDK_UART1_SERIAL_CONSOLE
+#  define HAVE_CMSDK_CONSOLE               1
+#else
+#  undef CONFIG_CMSDK_UART0_SERIAL_CONSOLE
+#  undef CONFIG_CMSDK_UART1_SERIAL_CONSOLE
+#  undef CONFIG_CMSDK_UART2_SERIAL_CONSOLE
+#  undef HAVE_CMSDK_CONSOLE
+#endif
+
+/****************************************************************************
+ * Public functions prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: cmsdk_earlyserialinit
+ *
+ * Description:
+ *   Performs the low level UART initialization early in debug so that the
+ *   serial console will be available during bootup.  This must be called
+ *   before uart_serialinit.
+ *
+ ****************************************************************************/
+
+void cmsdk_earlyserialinit(void);
+
+/****************************************************************************
+ * Name: cmsdk_serialinit
+ *
+ * Description:
+ *   Register serial console and serial ports.  This assumes that
+ *   up_earlyserialinit was called previously.
+ *
+ ****************************************************************************/
+
+void cmsdk_serialinit(void);
+
+#endif /* __INCLUDE_NUTTX_SERIAL_UART_CMSDK_H */