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#ifndef CYGONCE_ATMEL_SUPPORT_H
#define CYGONCE_ATMEL_SUPPORT_H
 
//=============================================================================
//
//      atmel_support.h
//
//      Platform specific support (register layout, etc)
//
//=============================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
//
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// version.                                                                 
//
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
// for more details.                                                        
//
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// along with eCos; if not, write to the Free Software Foundation, Inc.,    
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//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
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// must still be made available in accordance with section (3) of the GNU   
// General Public License v2.                                               
//
// This exception does not invalidate any other reasons why a work based    
// on this file might be covered by the GNU General Public License.         
// -------------------------------------------                              
// ####ECOSGPLCOPYRIGHTEND####                                              
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas
// Date:         2001-02-27
// Purpose:      Intel SA1110/iPAQ platform specific support routines
// Description: 
// Usage:        #include <cyg/hal/atmel_support.h>
//
//####DESCRIPTIONEND####
//
//=============================================================================
 
// Command codes 
#define ATMEL_CMD_VERSION      0
#define ATMEL_CMD_UNKNOWN      1
#define ATMEL_CMD_KEYBD        2
#define ATMEL_CMD_TOUCH        3
#define ATMEL_CMD_EEPROM_READ  4
#define ATMEL_CMD_EEPROM_WRITE 5
#define ATMEL_CMD_THERMAL      6
#define ATMEL_CMD_LED          8
#define ATMEL_CMD_BATTERY      9
#define ATMEL_CMD_SPI_READ     11
#define ATMEL_CMD_SPI_WRITE    12
#define ATMEL_CMD_LIGHT        13
#define NUM_ATMEL_CMDS         16
 
// Structure of actual packets
//
// Byte 0 - SOF
// Byte 1 - (cmd << 4) | length
// Byte 2 - Data   |
// ...             | 'length' bytes (0..15) 
// Byte m - Data   |
// Byte n - Checksum 
//
// Since the length must be less than 16, the entire
// packet will fit in 18 bytes
//
#define ATMEL_PKT_LEN 18
typedef struct _atmel_pkt {
    struct _atmel_pkt *next;
    unsigned char data[ATMEL_PKT_LEN];
    int len, size;
} atmel_pkt;
#define ATMEL_PKT_SOF  0
#define ATMEL_PKT_CMD  1
#define ATMEL_PKT_DATA 2
 
#define ATMEL_NUM_PKT  4
 
#define SOF 0x02
 
//
// Keyboard events are one byte with the button code
// and state or'd
//
#define ATMEL_BUTTON_STATE      0x80
#define ATMEL_BUTTON_STATE_DOWN 0x00
#define ATMEL_BUTTON_STATE_UP   0x80
#define ATMEL_BUTTON_VALUE      0x7F
 
#define ATMEL_BUTTON_RECORD     0x01
#define ATMEL_BUTTON_CALENDAR   0x02
#define ATMEL_BUTTON_MEMO       0x03
#define ATMEL_BUTTON_Q          0x04
#define ATMEL_BUTTON_RETURN     0x05
#define ATMEL_BUTTON_JOY_UP     0x06
#define ATMEL_BUTTON_JOY_RIGHT  0x07
#define ATMEL_BUTTON_JOY_DOWN   0x09
#define ATMEL_BUTTON_JOY_LEFT   0x08
 
struct key_event {
    unsigned char button_info;
};
 
//
// Touch screen events
// Note: up/down is really hard to discern
//
struct ts_event {
    bool   up;
    short  x, y;
};
 
// Functions
void atmel_init(void);
bool atmel_send(int, unsigned char *, int);
int  atmel_recv(unsigned char *, int);
typedef void atmel_handler(atmel_pkt *);
void atmel_register(int, atmel_handler *);
void atmel_interrupt_mode(bool enable);
 
bool ts_get_event(struct ts_event *);
bool key_get_event(struct key_event *);
 
#endif /* CYGONCE_ATMEL_SUPPORT_H */