From e4570c35f757a6fcf7b4998ecd29663627051168 Mon Sep 17 00:00:00 2001
From: hathach <thach@tinyusb.org>
Date: Mon, 20 Apr 2020 00:27:35 +0700
Subject: [PATCH] add uart for ea4357

---
 hw/bsp/ea4357/ea4357.c   | 51 +++++++++++++++++-----------------------
 src/common/tusb_common.h |  4 ++++
 2 files changed, 25 insertions(+), 30 deletions(-)

diff --git a/hw/bsp/ea4357/ea4357.c b/hw/bsp/ea4357/ea4357.c
index 87f1e83cc..b7e7f7a5c 100644
--- a/hw/bsp/ea4357/ea4357.c
+++ b/hw/bsp/ea4357/ea4357.c
@@ -28,15 +28,14 @@
 #include "../board.h"
 #include "pca9532.h"
 
-#define BOARD_UART_PORT           LPC_USART0
-#define BOARD_UART_PIN_PORT       0x0f
-#define BOARD_UART_PIN_TX         10 // PF.10 : UART0_TXD
-#define BOARD_UART_PIN_RX         11 // PF.11 : UART0_RXD
+#define UART_DEV        LPC_USART0
+#define UART_PORT       0x0f
+#define UART_PIN_TX     10 // PF.10 : UART0_TXD
+#define UART_PIN_RX     11 // PF.11 : UART0_RXD
 
 // P9_1 joystick down
-#define BUTTON_PORT   4
-#define BUTTON_PIN    13
-
+#define BUTTON_PORT     4
+#define BUTTON_PIN      13
 
 //static const struct {
 //  uint8_t mux_port;
@@ -68,14 +67,6 @@ static const PINMUX_GRP_T pinmuxing[] =
   {0x9, 1,  (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLUP)},
 
   // USB
-
-  /*  I2S  */
-  {0x3,  0,  (SCU_PINIO_FAST | SCU_MODE_FUNC2)}, //I2S0_TX_CLK
-  {0xC, 12,  (SCU_PINIO_FAST | SCU_MODE_FUNC6)}, //I2S0_TX_SDA
-  {0xC, 13,  (SCU_PINIO_FAST | SCU_MODE_FUNC6)}, //I2S0_TX_WS
-  {0x6,  0,  (SCU_PINIO_FAST | SCU_MODE_FUNC4)}, //I2S0_RX_SCK
-  {0x6,  1,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)}, //I2S0_RX_WS
-  {0x6,  2,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)}, //I2S0_RX_SDA
 };
 
 /* Pin clock mux values, re-used structure, value in first index is meaningless */
@@ -127,19 +118,14 @@ void board_init(void)
   // Button
   Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
 
-#if 0
   //------------- UART -------------//
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN, FUNC1);
-  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN | MD_EZI | MD_ZI, FUNC1);
+  Chip_SCU_PinMuxSet(UART_PORT, UART_PIN_TX, (SCU_MODE_PULLDOWN | SCU_MODE_FUNC1));
+  Chip_SCU_PinMuxSet(UART_PORT, UART_PIN_RX, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC1));
 
-  UART_CFG_Type UARTConfigStruct;
-  UART_ConfigStructInit(&UARTConfigStruct);
-  UARTConfigStruct.Baud_rate   = CFG_BOARD_UART_BAUDRATE;
-  UARTConfigStruct.Clock_Speed = 0;
-
-  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
-  UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
-#endif
+	Chip_UART_Init(UART_DEV);
+	Chip_UART_SetBaud(UART_DEV, CFG_BOARD_UART_BAUDRATE);
+	Chip_UART_ConfigData(UART_DEV, UART_LCR_WLEN8 | UART_LCR_SBS_1BIT | UART_LCR_PARITY_DIS);
+	Chip_UART_TXEnable(UART_DEV);
 
   //------------- USB -------------//
   enum {
@@ -278,16 +264,21 @@ uint32_t board_button_read(void)
 
 int board_uart_read(uint8_t* buf, int len)
 {
-  //return UART_ReceiveByte(BOARD_UART_PORT);
+  //return UART_ReceiveByte(BOARD_UART_DEV);
   (void) buf; (void) len;
   return 0;
 }
 
 int board_uart_write(void const * buf, int len)
 {
-  //UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
-  (void) buf; (void) len;
-  return 0;
+  uint8_t const* buf8 = (uint8_t const*) buf;
+  for(int i=0; i<len; i++)
+  {
+    while ((Chip_UART_ReadLineStatus(UART_DEV) & UART_LSR_THRE) == 0) {}
+    Chip_UART_SendByte(UART_DEV, buf8[i]);
+  }
+
+  return len;
 }
 
 #if CFG_TUSB_OS == OPT_OS_NONE
diff --git a/src/common/tusb_common.h b/src/common/tusb_common.h
index ef232a593..2d80f8210 100644
--- a/src/common/tusb_common.h
+++ b/src/common/tusb_common.h
@@ -223,12 +223,16 @@ void tu_print_mem(void const *buf, uint16_t count, uint8_t indent);
 #define TU_LOG1               tu_printf
 #define TU_LOG1_MEM           tu_print_mem
 #define TU_LOG1_LOCATION()    tu_printf("%s: %d:\r\n", __PRETTY_FUNCTION__, __LINE__)
+#define TU_LOG1_INT(x)        tu_printf(#x " = %ld\n", (uint32_t) (x) )
+#define TU_LOG1_HEX(x)        tu_printf(#x " = %lX\n", (uint32_t) (x) )
 
 // Log with debug level 2
 #if CFG_TUSB_DEBUG > 1
   #define TU_LOG2             TU_LOG1
   #define TU_LOG2_MEM         TU_LOG1_MEM
   #define TU_LOG2_LOCATION()  TU_LOG1_LOCATION()
+  #define TU_LOG2_INT         TU_LOG1_INT
+  #define TU_LOG2_HEX         TU_LOG1_HEX
 #endif