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1 //========================================================================== |
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2 // |
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3 // io/serial/common/haldiag.c |
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4 // |
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5 // Serial I/O interface module using HAL I/O routines |
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6 // |
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7 //========================================================================== |
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8 //####COPYRIGHTBEGIN#### |
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9 // |
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10 // ------------------------------------------- |
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11 // The contents of this file are subject to the Cygnus eCos Public License |
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12 // Version 1.0 (the "License"); you may not use this file except in |
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13 // compliance with the License. You may obtain a copy of the License at |
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14 // http://sourceware.cygnus.com/ecos |
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15 // |
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16 // Software distributed under the License is distributed on an "AS IS" |
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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18 // License for the specific language governing rights and limitations under |
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19 // the License. |
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20 // |
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21 // The Original Code is eCos - Embedded Cygnus Operating System, released |
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22 // September 30, 1998. |
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23 // |
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24 // The Initial Developer of the Original Code is Cygnus. Portions created |
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25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved. |
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26 // ------------------------------------------- |
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27 // |
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28 //####COPYRIGHTEND#### |
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29 //========================================================================== |
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30 //#####DESCRIPTIONBEGIN#### |
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31 // |
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32 // Author(s): gthomas |
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33 // Contributors: gthomas |
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34 // Date: 1999-02-04 |
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35 // Purpose: HAL/diag serial driver |
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36 // Description: |
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37 // |
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38 //####DESCRIPTIONEND#### |
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39 // |
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40 //========================================================================== |
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41 |
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42 #include <pkgconf/io.h> |
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43 #include <pkgconf/io_serial.h> |
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44 #ifdef CYGPKG_IO_SERIAL_HALDIAG |
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45 #include <cyg/io/io.h> |
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46 #include <cyg/io/devtab.h> |
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47 #include <cyg/io/serial.h> |
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48 #include <cyg/infra/diag.h> |
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49 #include <cyg/hal/hal_diag.h> |
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50 |
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51 static bool haldiag_init(struct cyg_devtab_entry *tab); |
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52 static bool haldiag_putc(serial_channel *chan, unsigned char c); |
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53 static unsigned char haldiag_getc(serial_channel *chan); |
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54 static bool haldiag_set_config(serial_channel *chan, cyg_serial_info_t *config); |
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55 |
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56 static SERIAL_FUNS(haldiag_funs, |
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57 haldiag_putc, |
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58 haldiag_getc, |
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59 haldiag_set_config, |
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60 0, // start xmit - not used |
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61 0 // stop xmit - not used |
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62 ); |
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63 |
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64 static int _no_data; |
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65 SERIAL_CHANNEL(haldiag_channel0, |
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66 haldiag_funs, |
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67 _no_data, |
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68 CYG_SERIAL_BAUD_DEFAULT, |
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69 CYG_SERIAL_STOP_DEFAULT, |
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70 CYG_SERIAL_PARITY_DEFAULT, |
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71 CYG_SERIAL_WORD_LENGTH_DEFAULT, |
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72 CYG_SERIAL_FLAGS_DEFAULT |
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73 ); |
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74 DEVTAB_ENTRY(haldiag_io0, |
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75 "/dev/haldiag", |
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76 0, // Does not depend on a lower level interface |
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77 &serial_devio, |
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78 haldiag_init, |
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79 0, // No initialization/lookup needed |
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80 &haldiag_channel0); |
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81 |
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82 static void |
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83 haldiag_config_port(serial_channel *chan) |
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84 { |
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85 } |
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86 |
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87 static bool |
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88 haldiag_init(struct cyg_devtab_entry *tab) |
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89 { |
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90 serial_channel *chan = (serial_channel *)tab->priv; |
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91 #ifdef CYGDBG_IO_INIT |
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92 diag_printf("HAL/diag SERIAL init\n"); |
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93 #endif |
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94 haldiag_config_port(chan); |
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95 return true; |
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96 } |
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97 |
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98 // Return 'true' if character is sent to device |
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99 static bool |
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100 haldiag_putc(serial_channel *chan, unsigned char c) |
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101 { |
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102 HAL_DIAG_WRITE_CHAR(c); |
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103 return true; |
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104 } |
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105 |
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106 static unsigned char |
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107 haldiag_getc(serial_channel *chan) |
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108 { |
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109 unsigned char c; |
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110 HAL_DIAG_READ_CHAR(c); |
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111 return c; |
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112 } |
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113 |
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114 static bool |
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115 haldiag_set_config(serial_channel *chan, cyg_serial_info_t *config) |
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116 { |
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117 diag_printf("%s\n", __FUNCTION__); |
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118 return true; |
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119 } |
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120 #endif // CYGPKG_IO_SERIAL_HALDIAG |
