1 | /* |
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2 | * Copyright (c) 2016 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Dornierstr. 4 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <info@embedded-brains.de> |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.org/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #include <bsp/atsam-i2c.h> |
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16 | #include <bsp/i2c.h> |
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17 | |
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18 | /** TWI0 data pin */ |
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19 | #define PIN_TWI_TWD0 {PIO_PA3A_TWD0, PIOA, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT} |
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20 | /** TWI0 clock pin */ |
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21 | #define PIN_TWI_TWCK0 {PIO_PA4A_TWCK0, PIOA, ID_PIOA, PIO_PERIPH_A, PIO_DEFAULT} |
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22 | |
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23 | /** TWI1 data pin */ |
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24 | #define PIN_TWI_TWD1 {PIO_PB4A_TWD1, PIOB, ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT} |
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25 | /** TWI1 clock pin */ |
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26 | #define PIN_TWI_TWCK1 {PIO_PB5A_TWCK1, PIOB, ID_PIOB, PIO_PERIPH_A, PIO_DEFAULT} |
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27 | |
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28 | /** TWI2 data pin */ |
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29 | #define PIN_TWI_TWD2 {PIO_PD27C_TWD2, PIOD, ID_PIOD, PIO_PERIPH_C, PIO_DEFAULT} |
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30 | /** TWI2 clock pin */ |
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31 | #define PIN_TWI_TWCK2 {PIO_PD28C_TWCK2, PIOD, ID_PIOD, PIO_PERIPH_C, PIO_DEFAULT} |
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32 | |
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33 | int atsam_register_i2c_0(void) |
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34 | { |
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35 | static const Pin pins[] = {PIN_TWI_TWD0, PIN_TWI_TWCK0}; |
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36 | |
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37 | return i2c_bus_register_atsam( |
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38 | ATSAM_I2C_0_BUS_PATH, |
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39 | TWIHS0, |
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40 | ID_TWIHS0, |
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41 | pins); |
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42 | } |
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43 | |
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44 | int atsam_register_i2c_1(void) |
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45 | { |
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46 | static const Pin pins[] = {PIN_TWI_TWD1, PIN_TWI_TWCK1}; |
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47 | |
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48 | return i2c_bus_register_atsam( |
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49 | ATSAM_I2C_1_BUS_PATH, |
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50 | TWIHS1, |
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51 | ID_TWIHS1, |
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52 | pins); |
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53 | } |
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54 | |
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55 | int atsam_register_i2c_2(void) |
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56 | { |
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57 | static const Pin pins[] = {PIN_TWI_TWD2, PIN_TWI_TWCK2}; |
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58 | |
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59 | return i2c_bus_register_atsam( |
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60 | ATSAM_I2C_2_BUS_PATH, |
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61 | TWIHS2, |
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62 | ID_TWIHS2, |
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63 | pins); |
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64 | } |
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