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/****************************************************************************
 *   Copyright (C) 2009-2010 by Claas Anders "CaScAdE" Rathje               *
 *   admiralcascade@gmail.com                                               *
 *   Project-URL: http://www.mylifesucks.de/oss/c-osd/                      *
 *                                                                          *
 *   This program is free software; you can redistribute it and/or modify   *
 *   it under the terms of the GNU General Public License as published by   *
 *   the Free Software Foundation; either version 2 of the License.         *
 *                                                                          *
 *   This program is distributed in the hope that it will be useful,        *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *   GNU General Public License for more details.                           *
 *                                                                          *
 *   You should have received a copy of the GNU General Public License      *
 *   along with this program; if not, write to the                          *
 *   Free Software Foundation, Inc.,                                        *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.              *
 ****************************************************************************/
 
/*
 * structs 'n union for easy SPI transfer
 */
typedef struct {
        int16_t ampere;
        int32_t mah;
        int16_t volt;
} __attribute__((packed)) SPI_strom_data_t;
 
typedef struct {
        uint8_t c[10];
        uint8_t chk;
} __attribute__((packed)) SPI_char_buffer_t;
 
union SPI_buffer_t {
  SPI_strom_data_t data;
  SPI_char_buffer_t buffer;
};
 
volatile union SPI_buffer_t SPI_buffer;
 
/**
 * SPI interrupt handler
 */
ISR(SPI_STC_vect);
 
/**
 * init the SPI as master
 */
void SpiMasterInit(void);
 
/**
 * check if SPI transfer is still busy
 */
int TransferIsBusy(void);
 
/**
 * start a new transfer with length <len>
 */
void StartTransfer(uint16_t);
 
/**
 * send next command through spi
 */
void spi_send_next();
 

Rev 507	Rev 728
1	/****************************************************************************	1	/****************************************************************************
2	* Copyright (C) 2009 by Claas Anders "CaScAdE" Rathje *	2	* Copyright (C) 2009-2010 by Claas Anders "CaScAdE" Rathje *
3	* admiralcascade@gmail.com *	3	* admiralcascade@gmail.com *
4	* Project-URL: http://www.mylifesucks.de/oss/c-osd/ *	4	* Project-URL: http://www.mylifesucks.de/oss/c-osd/ *
5	* *	5	* *
6	* This program is free software; you can redistribute it and/or modify *	6	* This program is free software; you can redistribute it and/or modify *
7	* it under the terms of the GNU General Public License as published by *	7	* it under the terms of the GNU General Public License as published by *
8	* the Free Software Foundation; either version 2 of the License. *	8	* the Free Software Foundation; either version 2 of the License. *
9	* *	9	* *
10	* This program is distributed in the hope that it will be useful, *	10	* This program is distributed in the hope that it will be useful, *
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of *	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13	* GNU General Public License for more details. *	13	* GNU General Public License for more details. *
14	* *	14	* *
15	* You should have received a copy of the GNU General Public License *	15	* You should have received a copy of the GNU General Public License *
16	* along with this program; if not, write to the *	16	* along with this program; if not, write to the *
17	* Free Software Foundation, Inc., *	17	* Free Software Foundation, Inc., *
18	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *	18	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19	****************************************************************************/	19	****************************************************************************/
20		20
21	/*	21	/*
22	* structs 'n union for easy SPI transfer	22	* structs 'n union for easy SPI transfer
23	*/	23	*/
24	typedef struct {	24	typedef struct {
25	int16_t ampere;	25	int16_t ampere;
26	int32_t mah;	26	int32_t mah;
27	int16_t volt;	27	int16_t volt;
28	} __attribute__((packed)) SPI_strom_data_t;	28	} __attribute__((packed)) SPI_strom_data_t;
29		29
30	typedef struct {	30	typedef struct {
31	uint8_t c[10];	31	uint8_t c[10];
32	uint8_t chk;	32	uint8_t chk;
33	} __attribute__((packed)) SPI_char_buffer_t;	33	} __attribute__((packed)) SPI_char_buffer_t;
34		34
35	union SPI_buffer_t {	35	union SPI_buffer_t {
36	SPI_strom_data_t data;	36	SPI_strom_data_t data;
37	SPI_char_buffer_t buffer;	37	SPI_char_buffer_t buffer;
38	};	38	};
39		39
40	volatile union SPI_buffer_t SPI_buffer;	40	volatile union SPI_buffer_t SPI_buffer;
41		41
42	/**	42	/**
43	* SPI interrupt handler	43	* SPI interrupt handler
44	*/	44	*/
45	ISR(SPI_STC_vect);	45	ISR(SPI_STC_vect);
46		46
47	/**	47	/**
48	* init the SPI as master	48	* init the SPI as master
49	*/	49	*/
50	void SpiMasterInit(void);	50	void SpiMasterInit(void);
51		51
52	/**	52	/**
53	* check if SPI transfer is still busy	53	* check if SPI transfer is still busy
54	*/	54	*/
55	int TransferIsBusy(void);	55	int TransferIsBusy(void);
56		56
57	/**	57	/**
58	* start a new transfer with length <len>	58	* start a new transfer with length <len>
59	*/	59	*/
60	void StartTransfer(uint16_t);	60	void StartTransfer(uint16_t);
61		61
62	/**	62	/**
63	* send next command through spi	63	* send next command through spi
64	*/	64	*/
65	void spi_send_next();	65	void spi_send_next();
66		66

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(root)/C-OSD/trunk/spi.h - Rev 507 → 728