/************************************************************************************
 * boards/arm/lpc17xx_40xx/lx_cpu/include/board.h
 * include/arch/board/board.h
 *
 *   Copyright (C) 2019 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * 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.
 * 3. Neither the name NuttX nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * 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.
 *
 ************************************************************************************/

#ifndef __BOARDS_ARM_LX_CPU_INCLUDE_BOARD_H
#define __BOARDS_ARM_LX_CPU_INCLUDE_BOARD_H

/************************************************************************************
 * Included Files
 ************************************************************************************/

#include <nuttx/config.h>

#include <stdbool.h>

#if defined(CONFIG_ARCH_IRQBUTTONS) && defined(CONFIG_LPC17_40_GPIOIRQ)
#  include <nuttx/irq.h>
#endif

/************************************************************************************
 * Pre-processor Definitions
 ************************************************************************************/

/* Clocking *************************************************************************/

/* NOTE:  The following definitions require lpc17_40_syscon.h.  It is not included
 * here because the including C file may not have that file in its include path.
 */

#define BOARD_XTAL_FREQUENCY       (12000000)            /* XTAL oscillator frequency */
#define BOARD_OSCCLK_FREQUENCY     BOARD_XTAL_FREQUENCY  /* Main oscillator frequency */
#define BOARD_RTCCLK_FREQUENCY     (32768)               /* RTC oscillator frequency */
#define BOARD_INTRCOSC_FREQUENCY   (4000000)             /* Internal RC oscillator frequency */
#define BOARD_WDTOSC_FREQUENCY     (500000)              /* WDT oscillator frequency */

/* This is the clock setup we configure for:
 *
 *   SYSCLK = BOARD_OSCCLK_FREQUENCY = 12MHz  -> Select Main oscillator for source
 *   PLL0CLK = (12 * SYSCLK) / 1 = 144MHz -> PLL0 multipler=12, pre-divider=1
 *   CCLCK = 72MHz  -> CCLK divider = 2
 */

#define LPC17_40_CCLK                 72000000 /* 72Mhz */
#define BOARD_PCLKDIV              2         /* Peripheral clock = LPC17_40_CCLK/2 */
#define BOARD_PCLK_FREQUENCY       (LPC17_40_CCLK * BOARD_CCLKSEL_DIVIDER / BOARD_PCLKDIV)

/* Select the main oscillator as the frequency source.  SYSCLK is then the frequency
 * of the main oscillator.
 *
 * If BOARD_XTAL_FREQUENCY > 15000000, then the SCS OSCRS bit (bit 4) should also
 * be set in the BOARD_SCS_VALUE.
 */

#undef CONFIG_LPC17_40_MAINOSC
#define CONFIG_LPC17_40_MAINOSC       1
#define BOARD_SCS_VALUE            SYSCON_SCS_OSCEN

/* Select the main oscillator and CCLK divider. The output of the divider is CCLK.
 * The input to the divider (PLLCLK) will be determined by the PLL output.
 */

#define BOARD_CCLKSEL_DIVIDER      2
#define BOARD_CCLKSEL_VALUE        (BOARD_CCLKSEL_DIVIDER | SYSCON_CCLKSEL_CCLKSEL)

/* PLL0.  PLL0 is used to generate the CPU clock (PLLCLK).
 *
 *  Source clock:               Main oscillator
 *  PLL0 Multiplier value (M):  12
 *  PLL0 Pre-divider value (P): 1
 *
 *  PLL0CLK = (M * SYSCLK) = 144MHz
 */

#undef CONFIG_LPC17_40_PLL0
#define CONFIG_LPC17_40_PLL0          1
#define BOARD_CLKSRCSEL_VALUE      SYSCON_CLKSRCSEL_MAIN

#define BOARD_PLL0CFG_MSEL         12
#define BOARD_PLL0CFG_PSEL         1
#define BOARD_PLL0CFG_VALUE \
  (((BOARD_PLL0CFG_MSEL-1) << SYSCON_PLLCFG_MSEL_SHIFT) | \
   ((BOARD_PLL0CFG_PSEL-1) << SYSCON_PLLCFG_PSEL_SHIFT))

/* PLL1 : PLL1 is used to generate clock for the USB */

#undef  CONFIG_LPC17_40_PLL1
#define BOARD_PLL1CFG_MSEL        4
#define BOARD_PLL1CFG_PSEL        2
#define BOARD_PLL1CFG_VALUE \
  (((BOARD_PLL1CFG_MSEL-1) << SYSCON_PLLCFG_MSEL_SHIFT) | \
   ((BOARD_PLL1CFG_PSEL-1) << SYSCON_PLLCFG_PSEL_SHIFT))

#ifdef CONFIG_LPC17_40_EMC
/* EMC clock selection.
 *
 * The EMC clock should not be driven above 80MHz.  As a result the EMC
 * uses the CPU clock divided by two.
 */

#  define BOARD_EMCCLKSEL_DIVIDER  1
#  define BOARD_EMCCLKSEL_VALUE    SYSCON_EMCCLKSEL_CCLK_DIV1
#  define LPC17_40_EMCCLK             (LPC17_40_CCLK / BOARD_EMCCLKSEL_DIVIDER)

#  define BOARD_EMC_FPGA_SETUP

#  define BOARD_XC_PROGRAM_PIN      (GPIO_PORT0 | GPIO_PIN8  | GPIO_OUTPUT | GPIO_VALUE_ONE)
#  define BOARD_XC_DONE_PIN         (GPIO_PORT0 | GPIO_PIN9  | GPIO_INPUT  | GPIO_PULLUP)
#  define BOARD_XC_INIT_PIN         (GPIO_PORT0 | GPIO_PIN18 | GPIO_OUTPUT | GPIO_PULLUP | GPIO_OPEN_DRAIN)
#  define BOARD_XC_SUSPEND_PIN      (GPIO_PORT0 | GPIO_PIN20 | GPIO_OUTPUT | GPIO_VALUE_ONE)
#  define BOARD_XC_RDWR_PIN         (GPIO_PORT4 | GPIO_PIN16 | GPIO_OUTPUT | GPIO_VALUE_ZERO)

#endif

#if defined(CONFIG_LPC17_40_USBHOST) || (CONFIG_LPC17_40_USBDEV)
/* USB divider.  The output of the PLL is used as the USB clock
 *
 *  USBCLK = PLL1CLK = (SYSCLK * 4)  = 48MHz
 */

#  define BOARD_USBCLKSEL_DIVIDER  1
#  define BOARD_USBCLKSEL_VALUE    (SYSCON_USBCLKSEL_USBDIV_DIV1 | \
                                    SYSCON_USBCLKSEL_USBSEL_PLL0)
#endif

#define GPIO_USB_DP GPIO_USB1DP
#define GPIO_USB_DM GPIO_USB1DM

#define GPIO_USB_CONNECT GPIO_USB1_CONNECT

#define GPIO_USB_OVRCR GPIO_USB2_OVRCR

#define GPIO_USB_PPWR GPIO_USB_PPWR2

#define GPIO_USB_PWRD  (GPIO_FLOAT | GPIO_PORT2 | GPIO_PIN10)

#if 0
#  define GPIO_USB_PPWR
#  define GPIO_USB_PWRD
#  define GPIO_USB_OVRCR
#endif

/* FLASH Configuration */

#undef  CONFIG_LPC17_40_FLASH
#define CONFIG_LPC17_40_FLASH         1

/* Flash access use 4 CPU clocks - Safe for 72 MHz */

#define BOARD_FLASHCFG_VALUE       SYSCON_FLASHCFG_TIM_3

/* Ethernet configuration */

#define ETH_MCFG_CLKSEL_DIV        ETH_MCFG_CLKSEL_DIV20

#define GPIO_ENET_CRS  (GPIO_ENET_CRSDV)
#define GPIO_ENET_MDC  GPIO_ENET_MDC_1
#define GPIO_ENET_MDIO GPIO_ENET_MDIO_1

/* CAN bus configuration */

#define GPIO_CAN2_RD GPIO_CAN2_RD_1
#define GPIO_CAN2_TD GPIO_CAN2_TD_1

#ifdef CONFIG_LPC17_40_SDCARD
/* SDIO dividers.  Note that slower clocking is required when DMA is disabled
 * in order to avoid RX overrun/TX underrun errors due to delayed responses
 * to service FIFOs in interrupt driven mode.
 * SDCARD_CLOCK=PCLK/(2*(SDCARD_CLKDIV+1))
 */

#  define SDCARD_CLKDIV_INIT       74   /* 400Khz  */
#  define SDCARD_INIT_CLKDIV       (SDCARD_CLKDIV_INIT)

#  define SDCARD_NORMAL_CLKDIV     1    /* DMA ON:  SDCARD_CLOCK=15MHz */
#define SDCARD_SLOW_CLKDIV         14   /* DMA OFF: SDCARD_CLOCK=2MHz */

#  ifdef CONFIG_SDIO_DMA
#    define SDCARD_MMCXFR_CLKDIV   (SDCARD_NORMAL_CLKDIV)
#  else
#    define SDCARD_MMCXFR_CLKDIV   (SDCARD_SLOW_CLKDIV)
#  endif

#  ifdef CONFIG_SDIO_DMA
#    define SDCARD_SDXFR_CLKDIV    (SDCARD_NORMAL_CLKDIV)
#  else
#    define SDCARD_SDXFR_CLKDIV    (SDCARD_SLOW_CLKDIV)
#  endif
#endif

/* Set EMC delay values:
 *
 * CMDDLY: Programmable delay value for EMC outputs in command delayed
 *   mode.  The delay amount is roughly CMDDLY * 250 picoseconds.
 * FBCLKDLY: Programmable delay value for the feedback clock that controls
 *   input data sampling.  The delay amount is roughly (FBCLKDLY+1) * 250
 *   picoseconds.
 * CLKOUT0DLY: Programmable delay value for the CLKOUT0 output. This would
 *   typically be used in clock delayed mode.  The delay amount is roughly
 *  (CLKOUT0DLY+1) * 250 picoseconds.
 * CLKOUT1DLY: Programmable delay value for the CLKOUT1 output. This would
 *  typically be used in clock delayed mode.  The delay amount is roughly
 *  (CLKOUT1DLY+1) * 250 picoseconds.
 *
 * Optimal for NOR: {1,1,1,1}
 * Needed for NAND and SDRAM: {17,1,2,1}
 */

#ifdef CONFIG_LPC17_40_EMC
#if defined(CONFIG_LPC17_40_EXTNAND) || defined(CONFIG_LPC17_40_EXTDRAM)
#  define BOARD_CMDDLY             16
#  define BOARD_FBCLKDLY           16
#  define BOARD_CLKOUT0DLY         1
#  define BOARD_CLKOUT1DLY         1
#else
#  define BOARD_CMDDLY             1
#  define BOARD_FBCLKDLY           1
#  define BOARD_CLKOUT0DLY         1
#  define BOARD_CLKOUT1DLY         1
#endif
#endif

#define BOARD_NADDR 16
#define BOARD_NDATA 32

/* #define BOARD_EMC_CONFIG_BY_LOADER 1 */

/* LED definitions ******************************************************************/

/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
 * any way.  The following definitions are used to access individual LEDs.
 *
 * LED1 -- Connected to P1[29]  RED
 * LED2 -- Connected to P0[16]  GREEN
 *
 * These LEDs are connecte to ground so a high output value will illuminate them.
 */

/* LED index values for use with board_userled() */

#define BOARD_LED1                 0
#define BOARD_LED2                 1
#define BOARD_NLEDS                2

/* LED bits for use with board_userled_all() */

#define BOARD_LED1_BIT             (1 << BOARD_LED1)
#define BOARD_LED2_BIT             (1 << BOARD_LED2)

/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the four LEDs
 * on the WaveShare Open1788K.  The following definitions describe how NuttX
 * controls the LEDs:
 */
                                      /* LED1 LED2 LED3 LED4                        */
#define LED_STARTED                0  /*  OFF  OFF  OFF  OFF                        */
#define LED_HEAPALLOCATE           1  /*  ON   OFF  OFF  OFF                        */
#define LED_IRQSENABLED            2  /*  OFF   ON  OFF  OFF                        */
#define LED_STACKCREATED           3  /*  ON    ON  OFF  OFF                        */
#define LED_INIRQ                  4  /*  LED3 glows, on while in interrupt         */
#define LED_SIGNAL                 4  /*  LED3 glows, on while in signal handler    */
#define LED_ASSERTION              4  /*  LED3 glows, on while in assertion         */
#define LED_PANIC                  4  /*  LED3 Flashes at 2Hz                       */
#define LED_IDLE                   5  /*  LED4 glows: ON while active               *
                                       *              OFF while sleeping            */

/* Button definitions ***************************************************************/

/* The LX_CPU supports several buttons.  All must be pulled up by the LX_CPU.
 * When closed, the pins will be pulled to ground.  So the buttons will read "1"
 * when open and "0" when closed.  All except USER1 are capable of generating
 * interrupts.
 *
 * USER1           -- Connected to P4[26]
 * USER2           -- Connected to P2[22]
 * USER3           -- Connected to P0[10]
 *
 * And a Joystick
 *
 * JOY_A           -- Connected to P2[25]
 * JOY_B           -- Connected to P2[26]
 * JOY_C           -- Connected to P2[23]
 * JOY_D           -- Connected to P2[19]
 * JOY_CTR         -- Connected to P0[14] (shared with SSP1 SSEL)
 *
 * For the interrupting buttons, interrupts are generated on both edges (press and
 * release).
 */

#define BOARD_BUTTON_USER1         0
#define BOARD_BUTTON_USER2         1
#define BOARD_BUTTON_USER3         2

#define BOARD_JOYSTICK_A           3
#define BOARD_JOYSTICK_B           4
#define BOARD_JOYSTICK_C           5
#define BOARD_JOYSTICK_D           6
#define BOARD_JOYSTICK_CTR         7

#define NUM_BUTTONS                8

#define BOARD_BUTTON_USER1_BIT     (1 << BOARD_BUTTON_USER1)
#define BOARD_BUTTON_USER2_BIT     (1 << BOARD_BUTTON_USER2)
#define BOARD_BUTTON_USER3_BIT     (1 << BOARD_BUTTON_USER3)

#define BOARD_JOYSTICK_A_BIT       (1 << BOARD_JOYSTICK_A)
#define BOARD_JOYSTICK_B_BIT       (1 << BOARD_JOYSTICK_B)
#define BOARD_JOYSTICK_C_BIT       (1 << BOARD_JOYSTICK_C)
#define BOARD_JOYSTICK_D_BIT       (1 << BOARD_JOYSTICK_D)
#define BOARD_JOYSTICK_CTR_BIT     (1 << BOARD_JOYSTICK_CTR)

/* Alternate pin selections *********************************************************/

/* UART0:
 *
 * TX    --- Connected to P0[2]
 * RX    --- Connected to P0[3]
 */

#define GPIO_UART0_TXD             GPIO_UART0_TXD_2
#define GPIO_UART0_RXD             GPIO_UART0_RXD_2

/* UART1:
 *
 * All pin options are controlled by older briges on the bottom of the board.  There
 * are the default settings on my board as it came out of the box:
 *
 * RTS   --- Connected to P0[22]
 * DSR   --- Connected to P0[19]
 * CTS   --- Connected to P0[17]
 * TXD   --- Connected to P0[15]
 * RXD   --- Connected to P0[16] (Shared with LED2)
 */

#define GPIO_UART1_RTS             GPIO_UART1_RTS_2
#define GPIO_UART1_DSR             GPIO_UART1_DSR_1
#define GPIO_UART1_CTS             GPIO_UART1_CTS_1
#define GPIO_UART1_TXD             GPIO_UART1_TXD_1
#define GPIO_UART1_RXD             GPIO_UART1_RXD_1

/* MCI-SDIO:
 *
 * D0    --- Connected to P1[6]
 * D1    --- Connected to P2[11]
 * D2    --- Connected to P2[12]
 * D3    --- Connected to P2[13]
 * CLK   --- Connected to P1[2]
 * CMD   --- Connected to P1[3]
 */

#define GPIO_SD_DAT0               GPIO_SD_DAT0_2
#define GPIO_SD_DAT1               GPIO_SD_DAT1_2
#define GPIO_SD_DAT2               GPIO_SD_DAT2_2
#define GPIO_SD_DAT3               GPIO_SD_DAT3_2
#define GPIO_SD_CLK                GPIO_SD_CLK_2
#define GPIO_SD_CMD                GPIO_SD_CMD_2

/* LCD R:
 *
 * VD0   --- Connected to P0[4]
 * VD1   --- Connected to P0[5]
 * VD2   --- Connected to P4[28]
 * VD3   --- Connected to P4[29]
 * VD4   --- Connected to P2[6]
 * VD5   --- Connected to P2[7]
 * VD6   --- Connected to P2[8]
 * VD7   --- Connected to P2[9]
 */

#define GPIO_LCD_VD0                GPIO_LCD_VD0_1
#define GPIO_LCD_VD1                GPIO_LCD_VD1_1
#define GPIO_LCD_VD2                GPIO_LCD_VD2_2
#define GPIO_LCD_VD3                GPIO_LCD_VD3_3
#define GPIO_LCD_VD4                GPIO_LCD_VD4_1
#define GPIO_LCD_VD5                GPIO_LCD_VD5_1
#define GPIO_LCD_VD6                GPIO_LCD_VD6_2
#define GPIO_LCD_VD7                GPIO_LCD_VD7_2

/* LCD G:
 *
 * VD8    --- Connected to P0[6]
 * VD9    --- Connected to P0[7]
 * VD10   --- Connected to P1[20]
 * VD11   --- Connected to P1[21]
 * VD12   --- Connected to P1[22]
 * VD13   --- Connected to P1[23]
 * VD14   --- Connected to P1[24]
 * VD15   --- Connected to P1[25]
 */

#define GPIO_LCD_VD8                GPIO_LCD_VD8_1
#define GPIO_LCD_VD9                GPIO_LCD_VD9_1
#define GPIO_LCD_VD10               GPIO_LCD_VD10_1
#define GPIO_LCD_VD11               GPIO_LCD_VD11_1
#define GPIO_LCD_VD12               GPIO_LCD_VD12_1
#define GPIO_LCD_VD13               GPIO_LCD_VD13_1
#define GPIO_LCD_VD14               GPIO_LCD_VD14_1
#define GPIO_LCD_VD15               GPIO_LCD_VD15_1

/* LCD B:
 *
 * VD16   --- Connected to P0[8]
 * VD17   --- Connected to P0[9]
 * VD18   --- Connected to P2[12]
 * VD19   --- Connected to P2[13]
 * VD20   --- Connected to P1[26]
 * VD21   --- Connected to P1[27]
 * VD22   --- Connected to P1[28]
 * VD23   --- Connected to P1[29]
 *
 * DCLK   --- Connected to P2[2]
 * LP     --- Connected to P2[5]
 * FP     --- Connected to P2[3]
 * ENAB_M --- Connected to P2[4]
 * PWR    --- Connected to P2[0]
 */

#define GPIO_SSP0_SCK  GPIO_SSP0_SCK_3
#define GPIO_SSP0_MISO GPIO_SSP0_MISO_2
#define GPIO_SSP0_MOSI GPIO_SSP0_MOSI_4

/* XPT2046 Touchscreen:
 *
 * -------------- -------------------- ------------ --------------------------------
 * XTPT2046       Module               Module       LX_CPU LED
 *                Signal               Connector    Connector
 * -------------- -------------------- ------------ ---------------------------------
 * Pin 11 PENIRQ\ PENIRQ (pulled high) PORT3 Pin 1  P2.15 PENIRQ
 * Pin 12 DOUT    MISO                 PORT3 Pin 4  P1.18 MISO1  (Also USB HOST UP
 *                                                                LED)
 * Pin 13 BUSY    BUSY (pulled high)   PORT3 Pin 9  P2.14 BUSY
 * Pin 14 DIN     MOSI                 PORT3 Pin 3  P0.13 MOSI1  (Also USB Device up
 *                                                                LED and SD CD pin)
 * Pin 15 CS\     SSEL (pulled high)   PORT3 Pin 6  P1.8  GPIO   (Also RMII_CRS_DV)
 * Pin 16 DCLK    SCK                  PORT3 Pin 5  P1.19 SCK1
 * -------------- -------------------- ------------ ---------------------------------
 */

#define GPIO_SSP1_MISO   GPIO_SSP1_MISO_3
#define GPIO_SSP1_MOSI   GPIO_SSP1_MOSI_2
#define GPIO_SSP1_SCK    GPIO_SSP1_SCK_2

#define UL_DRV_SYSLESS_CHIP "16450"
#define UL_DRV_SYSLESS_PORT LPC17_40_UART1_BASE
#define UL_DRV_SYSLESS_BAUD 19200
#define UL_DRV_SYSLESS_BAUDBASE ((BOARD_PCLK_FREQUENCY + 8) / 16)
#define UL_DRV_SYSLESS_IRQ LPC17_40_IRQ_UART1
#define UL_DRV_SYSLESS_MY_ADR_DEFAULT 3

struct nuttx_ulan_chip_data_s
{
  const char *chip;
  int my_adr;
  int baud;
  int baudbase;
  int irq;
  int port;
};

int nuttx_ulan_get_chip_data(int minor, struct nuttx_ulan_chip_data_s *chip_data);

#endif  /* __BOARDS_ARM_LX_CPU_INCLUDE_BOARD_H */
