1 | #ifndef DS1375_I2C_RTC_H |
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2 | #define DS1375_I2C_RTC_H |
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3 | |
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4 | /* Driver for the Maxim 1375 i2c RTC (TOD only; very simple...) */ |
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5 | |
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6 | /* |
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7 | * Authorship |
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8 | * ---------- |
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9 | * This software was created by |
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10 | * |
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11 | * Till Straumann <strauman@slac.stanford.edu>, 2005-2007, |
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12 | * Stanford Linear Accelerator Center, Stanford University. |
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13 | * |
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14 | * Acknowledgement of sponsorship |
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15 | * ------------------------------ |
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16 | * The software was produced by |
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17 | * the Stanford Linear Accelerator Center, Stanford University, |
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18 | * under Contract DE-AC03-76SFO0515 with the Department of Energy. |
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19 | * |
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20 | * Government disclaimer of liability |
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21 | * ---------------------------------- |
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22 | * Neither the United States nor the United States Department of Energy, |
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23 | * nor any of their employees, makes any warranty, express or implied, or |
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24 | * assumes any legal liability or responsibility for the accuracy, |
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25 | * completeness, or usefulness of any data, apparatus, product, or process |
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26 | * disclosed, or represents that its use would not infringe privately owned |
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27 | * rights. |
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28 | * |
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29 | * Stanford disclaimer of liability |
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30 | * -------------------------------- |
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31 | * Stanford University makes no representations or warranties, express or |
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32 | * implied, nor assumes any liability for the use of this software. |
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33 | * |
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34 | * Stanford disclaimer of copyright |
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35 | * -------------------------------- |
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36 | * Stanford University, owner of the copyright, hereby disclaims its |
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37 | * copyright and all other rights in this software. Hence, anyone may |
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38 | * freely use it for any purpose without restriction. |
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39 | * |
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40 | * Maintenance of notices |
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41 | * ---------------------- |
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42 | * In the interest of clarity regarding the origin and status of this |
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43 | * SLAC software, this and all the preceding Stanford University notices |
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44 | * are to remain affixed to any copy or derivative of this software made |
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45 | * or distributed by the recipient and are to be affixed to any copy of |
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46 | * software made or distributed by the recipient that contains a copy or |
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47 | * derivative of this software. |
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48 | * |
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49 | * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03 |
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50 | */ |
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51 | |
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52 | #include <rtems.h> |
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53 | #include <libchip/rtc.h> |
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54 | #include <stdint.h> |
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55 | |
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56 | #ifdef __cplusplus |
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57 | extern "C" { |
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58 | #endif |
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59 | |
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60 | extern rtc_fns rtc_ds1375_fns; |
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61 | |
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62 | bool |
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63 | rtc_ds1375_device_probe( int minor ); |
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64 | |
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65 | uint32_t |
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66 | rtc_ds1375_get_register( uintptr_t port, uint8_t reg ); |
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67 | |
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68 | void |
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69 | rtc_ds1375_set_register( uintptr_t port, uint8_t reg, uint32_t value ); |
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70 | |
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71 | /* |
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72 | * BSP must supply string constant argument 'i2cname' which matches |
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73 | * the registered device name of the raw i2c device (created with mknod). |
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74 | * E.g., "/dev/i2c.ds1375-raw" |
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75 | * |
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76 | * NOTE: The i2c bus driver must already be up and 'i2cname' already |
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77 | * be available when this ENTRY is registered or initialized. |
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78 | * |
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79 | * If you want to allow applications to add the RTC driver to |
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80 | * the configuration table then the i2c subsystem must be |
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81 | * initialized by the BSP from the predriver_hook. |
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82 | */ |
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83 | #define DS1375_RTC_TBL_ENTRY(i2cname) \ |
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84 | { \ |
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85 | sDeviceName: "/dev/rtc", \ |
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86 | deviceType: RTC_CUSTOM, \ |
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87 | pDeviceFns: &rtc_ds1375_fns, \ |
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88 | deviceProbe: rtc_ds1375_device_probe, \ |
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89 | ulCtrlPort1: (uintptr_t)(i2cname), \ |
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90 | ulDataPort: 0, \ |
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91 | getRegister: rtc_ds1375_get_register, \ |
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92 | setRegister: rtc_ds1375_set_register, \ |
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93 | } |
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94 | |
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95 | #ifdef __cplusplus |
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96 | } |
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97 | #endif |
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98 | |
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99 | #endif |
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