1 | /* |
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2 | * Header file for GRASCS RTEMS driver |
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3 | * |
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4 | * COPYRIGHT (c) 2008. |
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5 | * Cobham Gaisler AB. |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.org/license/LICENSE. |
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10 | */ |
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11 | |
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12 | #ifndef __GRASCS_H__ |
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13 | #define __GRASCS_H__ |
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14 | |
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15 | #ifdef __cplusplus |
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16 | extern "C" { |
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17 | #endif |
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18 | |
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19 | /* Minimum and maximum system frequency */ |
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20 | #define GRASCS_MIN_SFREQ 10000 |
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21 | #define GRASCS_MAX_SFREQ 255000 |
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22 | |
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23 | /* Default, minimum and maximum ETR pulse frequency */ |
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24 | #define GRASCS_DEFAULT_ETRFREQ 10 |
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25 | #define GRASCS_MIN_ETRFREQ 1 |
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26 | #define GRASCS_MAX_ETRFREQ 100 |
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27 | |
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28 | /* Maximum number of external time markers */ |
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29 | #define GRASCS_MAX_TMS 6 |
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30 | |
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31 | /* Error codes */ |
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32 | #define GRASCS_ERROR_STARTSTOP 1 /* Serial/synch interface is running/stopped */ |
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33 | #define GRASCS_ERROR_TRANSACTIVE 2 /* Busy with transaction */ |
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34 | #define GRASCS_ERROR_CAPFAULT 3 /* Core capabilities prohibit request */ |
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35 | |
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36 | /* Command register */ |
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37 | #define GRASCS_CMD_RESET (1 << 0) |
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38 | #define GRASCS_CMD_STARTSTOP (1 << 1) |
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39 | #define GRASCS_CMD_ESTARTSTOP (1 << 2) |
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40 | #define GRASCS_CMD_SENDTM (1 << 3) |
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41 | #define GRASCS_CMD_ETRCTRL (7 << 4) |
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42 | #define GRASCS_CMD_ETRCTRL_BITS 4 |
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43 | #define GRASCS_CMD_SLAVESEL (15 << 8) |
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44 | #define GRASCS_CMD_SLAVESEL_BITS 8 |
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45 | #define GRASCS_CMD_TCDONE (1 << 12) |
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46 | #define GRASCS_CMD_TMDONE (1 << 13) |
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47 | #define GRASCS_CMD_US1 (255 << 16) |
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48 | #define GRASCS_CMD_US1_BITS 16 |
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49 | #define GRASCS_CMD_US1C (1 << 24) |
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50 | |
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51 | /* Clock scale register */ |
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52 | #define GRASCS_CLK_ETRFREQ_BITS 12 |
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53 | |
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54 | /* Status register */ |
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55 | #define GRASCS_STS_RUNNING (1 << 0) |
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56 | #define GRASCS_STS_ERUNNING (1 << 1) |
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57 | #define GRASCS_STS_TCDONE (1 << 4) |
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58 | #define GRASCS_STS_TMDONE (1 << 5) |
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59 | #define GRASCS_STS_DBITS_BITS 8 |
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60 | #define GRASCS_STS_NSLAVES_BITS 13 |
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61 | #define GRASCS_STS_USCONF_BITS 18 |
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62 | #define GRASCS_STS_TMCONF_BITS 19 |
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63 | |
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64 | extern int ASCS_init(void); |
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65 | |
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66 | extern int ASCS_input_select(int slave); |
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67 | |
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68 | extern int ASCS_etr_select(int etr, int freq); |
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69 | |
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70 | extern void ASCS_start(void); |
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71 | |
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72 | extern void ASCS_stop(void); |
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73 | |
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74 | extern int ASCS_iface_status(void); |
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75 | |
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76 | extern int ASCS_TC_send(int *word); |
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77 | |
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78 | extern int ASCS_TC_send_block(int *block, int ntrans); |
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79 | |
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80 | extern void ASCS_TC_sync_start(void); |
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81 | |
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82 | extern void ASCS_TC_sync_stop(void); |
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83 | |
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84 | extern int ASCS_TM_recv(int *word); |
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85 | |
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86 | extern int ASCS_TM_recv_block(int *block, int ntrans); |
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87 | |
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88 | #ifdef __cplusplus |
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89 | } |
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90 | #endif |
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91 | |
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92 | #endif |
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