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/* *****************************************************************************
* The MIT License
*
* Copyright (c) 2010 LeafLabs LLC.
*
* 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.
* ****************************************************************************/
#ifndef __HARDWARE_H
#define __HARDWARE_H
#include "usb_type.h"
/* macro'd register and peripheral definitions */
#define EXC_RETURN 0xFFFFFFF9
#define DEFAULT_CPSR 0x61000000
#define STACK_TOP 0x20005000
#define RCC ((u32)0x40021000)
#define FLASH ((u32)0x40022000)
#define GPIOA ((u32)0x40010800)
#define GPIOC ((u32)0x40011000)
#define USB_PACKET_BUFFER ((u32)0x40006000)
#define RCC_CR RCC
#define RCC_CFGR RCC + 0x04
#define RCC_CIR RCC + 0x08
#define RCC_AHBENR RCC + 0x14
#define RCC_APB2ENR RCC + 0x18
#define RCC_APB1ENR RCC + 0x16
#define GPIO_CRL(port) port
#define GPIO_CRH(port) port+0x04
#define GPIO_ODR(port) port+0x0c
#define GPIO_BSRR(port) port+0x10
#define SCS_BASE ((u32)0xE000E000)
#define NVIC_BASE (SCS_BASE + 0x0100)
#define SCB_BASE (SCS_BASE + 0x0D00)
#define SCS 0xE000E000
#define NVIC (SCS+0x100)
#define SCB (SCS+0xD00)
#define STK (SCS+0x10)
#define SCB_VTOR (SCB+0x08)
#define STK_CTRL (STK+0x00)
#define USB_HP_IRQ ((u8)0x13)
#define USB_LP_IRQ ((u8)0x14)
/* AIRCR */
#define AIRCR_RESET 0x05FA0000
#define AIRCR_RESET_REQ (AIRCR_RESET | (u32)0x04);
/* temporary copyage of example from kiel */
#define __VAL(__TIMCLK, __PERIOD) ((__TIMCLK/1000000UL)*__PERIOD)
#define __PSC(__TIMCLK, __PERIOD) (((__VAL(__TIMCLK, __PERIOD)+49999UL)/50000UL) - 1)
#define __ARR(__TIMCLK, __PERIOD) ((__VAL(__TIMCLK, __PERIOD)/(__PSC(__TIMCLK, __PERIOD)+1)) - 1)
/* todo, wrap in do whiles for the natural ; */
#define SET_REG(addr,val) *(vu32*)(addr)=val
#define GET_REG(addr) *(vu32*)(addr)
#if defined(__cplusplus)
extern "C" {
#endif
/* todo: there must be some major misunderstanding in how we access regs. The direct access approach (GET_REG)
causes the usb init to fail upon trying to activate RCC_APB1 |= 0x00800000. However, using the struct approach
from ST, it works fine...temporarily switching to that approach */
typedef struct
{
vu32 CR;
vu32 CFGR;
vu32 CIR;
vu32 APB2RSTR;
vu32 APB1RSTR;
vu32 AHBENR;
vu32 APB2ENR;
vu32 APB1ENR;
vu32 BDCR;
vu32 CSR;
} RCC_RegStruct;
#define pRCC ((RCC_RegStruct *) RCC)
typedef struct {
vu32 ISER[2];
u32 RESERVED0[30];
vu32 ICER[2];
u32 RSERVED1[30];
vu32 ISPR[2];
u32 RESERVED2[30];
vu32 ICPR[2];
u32 RESERVED3[30];
vu32 IABR[2];
u32 RESERVED4[62];
vu32 IPR[15];
} NVIC_TypeDef;
typedef struct {
u8 NVIC_IRQChannel;
u8 NVIC_IRQChannelPreemptionPriority;
u8 NVIC_IRQChannelSubPriority;
USB_Bool NVIC_IRQChannelCmd; /* TRUE for enable */
} NVIC_InitTypeDef;
typedef struct {
vuc32 CPUID;
vu32 ICSR;
vu32 VTOR;
vu32 AIRCR;
vu32 SCR;
vu32 CCR;
vu32 SHPR[3];
vu32 SHCSR;
vu32 CFSR;
vu32 HFSR;
vu32 DFSR;
vu32 MMFAR;
vu32 BFAR;
vu32 AFSR;
} SCB_TypeDef;
void setPin (u32 bank, u8 pin);
void resetPin (u32 bank, u8 pin);
void systemHardReset(void);
void systemReset (void);
void setupCLK (void);
void nvicInit (NVIC_InitTypeDef*);
void nvicDisableInterrupts(void);
#if defined(__cplusplus)
}
#endif
#endif
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