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1 | /**************************************************************************** |
1 | /**************************************************************************** |
2 | * Copyright (C) 2009-2010 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 | ||
- | 21 | #ifndef _SPI_H |
|
- | 22 | #define _SPI_H |
|
20 | 23 | ||
21 | /* |
24 | /* |
22 | * structs 'n union for easy SPI transfer |
25 | * structs 'n union for easy SPI transfer |
23 | */ |
26 | */ |
24 | typedef struct { |
27 | typedef struct { |
25 | int16_t ampere; |
28 | int16_t ampere; |
26 | int32_t mah; |
29 | int32_t mah; |
27 | int16_t volt; |
30 | int16_t volt; |
28 | } __attribute__((packed)) SPI_strom_data_t; |
31 | } __attribute__((packed)) SPI_strom_data_t; |
29 | 32 | ||
30 | typedef struct { |
33 | typedef struct { |
31 | uint8_t c[10]; |
34 | uint8_t c[10]; |
32 | uint8_t chk; |
35 | uint8_t chk; |
33 | } __attribute__((packed)) SPI_char_buffer_t; |
36 | } __attribute__((packed)) SPI_char_buffer_t; |
34 | 37 | ||
35 | union SPI_buffer_t { |
38 | union SPI_buffer_t { |
36 | SPI_strom_data_t data; |
39 | SPI_strom_data_t data; |
37 | SPI_char_buffer_t buffer; |
40 | SPI_char_buffer_t buffer; |
38 | }; |
41 | }; |
39 | 42 | ||
40 | volatile union SPI_buffer_t SPI_buffer; |
43 | volatile union SPI_buffer_t SPI_buffer; |
41 | 44 | ||
42 | /** |
45 | /** |
43 | * SPI interrupt handler |
46 | * SPI interrupt handler |
44 | */ |
47 | */ |
45 | ISR(SPI_STC_vect); |
48 | ISR(SPI_STC_vect); |
46 | 49 | ||
47 | /** |
50 | /** |
48 | * init the SPI as master |
51 | * init the SPI as master |
49 | */ |
52 | */ |
50 | void SpiMasterInit(void); |
53 | void SpiMasterInit(void); |
51 | 54 | ||
52 | /** |
55 | /** |
53 | * check if SPI transfer is still busy |
56 | * check if SPI transfer is still busy |
54 | */ |
57 | */ |
55 | int TransferIsBusy(void); |
58 | int TransferIsBusy(void); |
56 | 59 | ||
57 | /** |
60 | /** |
58 | * start a new transfer with length <len> |
61 | * start a new transfer with length <len> |
59 | */ |
62 | */ |
60 | void StartTransfer(uint16_t); |
63 | void StartTransfer(uint16_t); |
61 | 64 | ||
62 | /** |
65 | /** |
63 | * send next command through spi |
66 | * send next command through spi |
64 | */ |
67 | */ |
65 | void spi_send_next(); |
68 | void spi_send_next(); |
- | 69 | ||
- | 70 | #endif |
|
66 | 71 |