299 lines
9.8 KiB
C
299 lines
9.8 KiB
C
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2018, hathach (tinyusb.org)
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* This file is part of the TinyUSB stack.
|
|
*/
|
|
|
|
#include "chip.h"
|
|
#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
|
|
|
|
static const struct {
|
|
uint8_t mux_port;
|
|
uint8_t mux_pin;
|
|
|
|
uint8_t gpio_port;
|
|
uint8_t gpio_pin;
|
|
}buttons[] =
|
|
{
|
|
{0x0a, 3, 4, 10 }, // Joystick up
|
|
{0x09, 1, 4, 13 }, // Joystick down
|
|
{0x0a, 2, 4, 9 }, // Joystick left
|
|
{0x09, 0, 4, 12 }, // Joystick right
|
|
{0x0a, 1, 4, 8 }, // Joystick press
|
|
{0x02, 7, 0, 7 }, // SW6
|
|
};
|
|
|
|
enum {
|
|
BOARD_BUTTON_COUNT = sizeof(buttons) / sizeof(buttons[0])
|
|
};
|
|
|
|
/*------------------------------------------------------------------*/
|
|
/* TUSB HAL MILLISECOND
|
|
*------------------------------------------------------------------*/
|
|
#if CFG_TUSB_OS == OPT_OS_NONE
|
|
|
|
volatile uint32_t system_ticks = 0;
|
|
|
|
void SysTick_Handler (void)
|
|
{
|
|
system_ticks++;
|
|
}
|
|
|
|
uint32_t board_millis(void)
|
|
{
|
|
return system_ticks;
|
|
}
|
|
|
|
#endif
|
|
|
|
/*------------------------------------------------------------------*/
|
|
/* BOARD API
|
|
*------------------------------------------------------------------*/
|
|
|
|
/* System configuration variables used by chip driver */
|
|
const uint32_t ExtRateIn = 0;
|
|
const uint32_t OscRateIn = 12000000;
|
|
|
|
static const PINMUX_GRP_T pinmuxing[] =
|
|
{
|
|
// 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 */
|
|
static const PINMUX_GRP_T pinclockmuxing[] =
|
|
{
|
|
{0, 0, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
|
|
{0, 1, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
|
|
{0, 2, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
|
|
{0, 3, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_HIGHSPEEDSLEW_EN | SCU_MODE_FUNC0)},
|
|
};
|
|
|
|
// Invoked by startup code
|
|
void SystemInit(void)
|
|
{
|
|
/* Setup system level pin muxing */
|
|
Chip_SCU_SetPinMuxing(pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
|
|
|
|
/* Clock pins only, group field not used */
|
|
for (int i = 0; i <(int) (sizeof(pinclockmuxing) / sizeof(pinclockmuxing[0])); i++)
|
|
{
|
|
Chip_SCU_ClockPinMuxSet(pinclockmuxing[i].pinnum, pinclockmuxing[i].modefunc);
|
|
}
|
|
|
|
Chip_SetupXtalClocking();
|
|
}
|
|
|
|
void board_init(void)
|
|
{
|
|
SystemCoreClockUpdate();
|
|
|
|
#if CFG_TUSB_OS == OPT_OS_NONE
|
|
// 1ms tick timer
|
|
SysTick_Config(SystemCoreClock / 1000);
|
|
#endif
|
|
|
|
Chip_GPIO_Init(LPC_GPIO_PORT);
|
|
|
|
//------------- LED -------------//
|
|
/* Init I2C */
|
|
Chip_SCU_I2C0PinConfig(I2C0_STANDARD_FAST_MODE);
|
|
Chip_I2C_Init(I2C0);
|
|
Chip_I2C_SetClockRate(I2C0, 100000);
|
|
Chip_I2C_SetMasterEventHandler(I2C0, Chip_I2C_EventHandlerPolling);
|
|
|
|
pca9532_init();
|
|
|
|
#if 0
|
|
//------------- BUTTON -------------//
|
|
for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++)
|
|
{
|
|
scu_pinmux(buttons[i].mux_port, buttons[i].mux_pin, GPIO_NOPULL, FUNC0);
|
|
GPIO_SetDir(buttons[i].gpio_port, TU_BIT(buttons[i].gpio_pin), 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);
|
|
|
|
UART_CFG_Type UARTConfigStruct;
|
|
UART_ConfigStructInit(&UARTConfigStruct);
|
|
UARTConfigStruct.Baud_rate = CFG_UART_BAUDRATE;
|
|
UARTConfigStruct.Clock_Speed = 0;
|
|
|
|
UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
|
|
UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
|
|
#endif
|
|
|
|
//------------- USB -------------//
|
|
enum {
|
|
USBMODE_DEVICE = 2,
|
|
USBMODE_HOST = 3
|
|
};
|
|
|
|
enum {
|
|
USBMODE_VBUS_LOW = 0,
|
|
USBMODE_VBUS_HIGH = 1
|
|
};
|
|
|
|
/* USB0
|
|
* For USB Device operation; insert jumpers in position 1-2 in JP17/JP18/JP19. GPIO28 controls USB
|
|
* connect functionality and LED32 lights when the USB Device is connected. SJ4 has pads 1-2 shorted
|
|
* by default. LED33 is controlled by GPIO27 and signals USB-up state. GPIO54 is used for VBUS
|
|
* sensing.
|
|
* For USB Host operation; insert jumpers in position 2-3 in JP17/JP18/JP19. USB Host power is
|
|
* controlled via distribution switch U20 (found in schematic page 11). Signal GPIO26 is active low and
|
|
* enables +5V on VBUS2. LED35 light whenever +5V is present on VBUS2. GPIO55 is connected to
|
|
* status feedback from the distribution switch. GPIO54 is used for VBUS sensing. 15Kohm pull-down
|
|
* resistors are always active
|
|
*/
|
|
#if CFG_TUSB_RHPORT0_MODE
|
|
Chip_USB0_Init();
|
|
|
|
// Reset controller
|
|
LPC_USB0->USBCMD_D |= 0x02;
|
|
while( LPC_USB0->USBCMD_D & 0x02 ) {}
|
|
|
|
// Set mode
|
|
#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
|
|
LPC_USB0->USBMODE_H = USBMODE_HOST | (USBMODE_VBUS_HIGH << 5);
|
|
|
|
LPC_USB0->PORTSC1_D |= (1<<24); // FIXME force full speed for debugging
|
|
#else // TODO OTG
|
|
LPC_USB0->USBMODE_D = USBMODE_DEVICE;
|
|
LPC_USB0->OTGSC = (1<<3) | (1<<0) /*| (1<<16)| (1<<24)| (1<<25)| (1<<26)| (1<<27)| (1<<28)| (1<<29)| (1<<30)*/;
|
|
#endif
|
|
#endif
|
|
|
|
/* USB1
|
|
* When USB channel #1 is used as USB Host, 15Kohm pull-down resistors are needed on the USB data
|
|
* signals. These are activated inside the USB OTG chip (U31), and this has to be done via the I2C
|
|
* interface of GPIO52/GPIO53.
|
|
* J20 is the connector to use when USB Host is used. In order to provide +5V to the external USB
|
|
* device connected to this connector (J20), channel A of U20 must be enabled. It is enabled by default
|
|
* since SJ5 is normally connected between pin 1-2. LED34 lights green when +5V is available on J20.
|
|
* JP15 shall not be inserted. JP16 has no effect
|
|
*
|
|
* When USB channel #1 is used as USB Device, a 1.5Kohm pull-up resistor is needed on the USB DP
|
|
* data signal. There are two methods to create this. JP15 is inserted and the pull-up resistor is always
|
|
* enabled. Alternatively, the pull-up resistor is activated inside the USB OTG chip (U31), and this has to
|
|
* be done via the I2C interface of GPIO52/GPIO53. In the latter case, JP15 shall not be inserted.
|
|
* J19 is the connector to use when USB Device is used. Normally it should be a USB-B connector for
|
|
* creating a USB Device interface, but the mini-AB connector can also be used in this case. The status
|
|
* of VBUS can be read via U31.
|
|
* JP16 shall not be inserted.
|
|
*/
|
|
#if CFG_TUSB_RHPORT1_MODE
|
|
Chip_USB1_Init();
|
|
|
|
// Reset controller
|
|
LPC_USB1->USBCMD_D |= 0x02;
|
|
while( LPC_USB1->USBCMD_D & 0x02 ) {}
|
|
|
|
// Set mode
|
|
#if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
|
|
LPC_USB1->USBMODE_H = USBMODE_HOST | (USBMODE_VBUS_HIGH << 5);
|
|
#else // TODO OTG
|
|
LPC_USB1->USBMODE_D = USBMODE_DEVICE;
|
|
#endif
|
|
|
|
// USB1 as fullspeed
|
|
LPC_USB1->PORTSC1_D |= (1<<24);
|
|
#endif
|
|
|
|
// USB0 Vbus Power: P2_3 on EA4357 channel B U20 GPIO26 active low (base board)
|
|
Chip_SCU_PinMuxSet(2, 3, SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC7);
|
|
|
|
#if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
|
|
// P9_5 (GPIO5[18]) (GPIO28 on oem base) as USB connect, active low.
|
|
Chip_SCU_PinMuxSet(9, 5, SCU_MODE_PULLDOWN | SCU_MODE_FUNC4);
|
|
Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 5, 18);
|
|
#endif
|
|
|
|
// USB1 Power: EA4357 channel A U20 is enabled by SJ5 connected to pad 1-2, no more action required
|
|
// TODO Remove R170, R171, solder a pair of 15K to USB1 D+/D- to test with USB1 Host
|
|
}
|
|
|
|
// LED
|
|
void board_led_write(bool state)
|
|
{
|
|
if (state)
|
|
{
|
|
pca9532_setLeds( LED1, 0 );
|
|
}else
|
|
{
|
|
pca9532_setLeds( 0, LED1);
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// BUTTONS
|
|
//--------------------------------------------------------------------+
|
|
#if 0
|
|
static bool button_read(uint8_t id)
|
|
{
|
|
// return !TU_BIT_TEST( GPIO_ReadValue(buttons[id].gpio_port), buttons[id].gpio_pin ); // button is active low
|
|
}
|
|
#endif
|
|
|
|
uint32_t board_button_read(void)
|
|
{
|
|
uint32_t result = 0;
|
|
|
|
// for(uint8_t i=0; i<BOARD_BUTTON_COUNT; i++) result |= (button_read(i) ? TU_BIT(i) : 0);
|
|
|
|
return result;
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// UART
|
|
//--------------------------------------------------------------------+
|
|
int board_uart_read(uint8_t* buf, int len)
|
|
{
|
|
//return UART_ReceiveByte(BOARD_UART_PORT);
|
|
(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;
|
|
}
|