1 | #include <freebsd/machine/rtems-bsd-config.h> |
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2 | |
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3 | /** |
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4 | * @file |
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5 | * |
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6 | * @ingroup rtems_bsd_rtems |
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7 | * |
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8 | * @brief This is the rtems version for the FreeBSD cpu specific |
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9 | * file pci_cfgreg.c. Please note that the Ether Express is not |
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10 | * supported in this version. |
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11 | */ |
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12 | |
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13 | /* |
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14 | * COPYRIGHT (c) 2012. On-Line Applications Research Corporation (OAR). |
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15 | * All rights reserved. |
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16 | * |
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17 | * Redistribution and use in source and binary forms, with or without |
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18 | * modification, are permitted provided that the following conditions |
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19 | * are met: |
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20 | * 1. Redistributions of source code must retain the above copyright |
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21 | * notice, this list of conditions and the following disclaimer. |
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22 | * 2. Redistributions in binary form must reproduce the above copyright |
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23 | * notice, this list of conditions and the following disclaimer in the |
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24 | * documentation and/or other materials provided with the distribution. |
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25 | * |
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26 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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36 | * SUCH DAMAGE. |
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37 | */ |
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38 | |
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39 | #include <freebsd/sys/cdefs.h> |
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40 | __FBSDID("$FreeBSD$"); |
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41 | |
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42 | #include <freebsd/sys/param.h> |
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43 | #include <freebsd/sys/systm.h> |
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44 | #include <freebsd/sys/bus.h> |
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45 | #include <freebsd/sys/lock.h> |
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46 | #include <freebsd/sys/kernel.h> |
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47 | #include <freebsd/sys/malloc.h> |
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48 | #include <freebsd/sys/sysctl.h> |
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49 | #include <freebsd/dev/pci/pcivar.h> |
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50 | #include <freebsd/dev/pci/pcireg.h> |
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51 | #include <freebsd/machine/pci_cfgreg.h> |
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52 | |
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53 | #include <rtems/pci.h> |
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54 | |
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55 | |
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56 | /* |
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57 | * Initialise access to PCI configuration space |
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58 | */ |
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59 | int |
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60 | pci_cfgregopen(void) |
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61 | { |
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62 | return(1); |
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63 | } |
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64 | |
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65 | /* |
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66 | * Read configuration space register |
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67 | */ |
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68 | u_int32_t |
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69 | pci_cfgregread(int bus, int slot, int func, int reg, int bytes) |
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70 | { |
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71 | u_int32_t value; |
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72 | uint8_t v8; |
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73 | uint16_t v16; |
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74 | uint32_t v32; |
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75 | int data; |
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76 | |
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77 | switch (bytes) { |
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78 | case 1: |
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79 | data = pci_read_config_byte( bus, slot, func, reg, &v8 ); |
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80 | value = v8; |
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81 | break; |
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82 | case 2: |
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83 | data = pci_read_config_word( bus, slot, func, reg, &v16 ); |
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84 | value = v16; |
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85 | break; |
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86 | case 4: |
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87 | data = pci_read_config_dword( bus, slot, func, reg, &v32 ); |
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88 | value = v32; |
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89 | break; |
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90 | } |
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91 | |
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92 | return value; |
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93 | } |
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94 | |
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95 | /* |
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96 | * Write configuration space register |
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97 | */ |
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98 | void |
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99 | pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes) |
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100 | { |
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101 | uint8_t v8 = data & 0xff; |
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102 | uint16_t v16 = data & 0xffff; |
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103 | uint32_t v32 = data; |
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104 | |
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105 | switch (bytes) { |
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106 | case 1: |
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107 | pci_write_config_byte( bus, slot, func, reg, v8 ); |
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108 | break; |
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109 | case 2: |
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110 | pci_write_config_word( bus, slot, func, reg, v16 ); |
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111 | break; |
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112 | case 4: |
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113 | pci_write_config_dword( bus, slot, func, reg, v32 ); |
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114 | break; |
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115 | } |
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116 | } |
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