developer | e0cea0f | 2021-12-16 16:08:26 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * spi.h |
| 4 | * SPI driver implementation file |
| 5 | * |
| 6 | * Author(s): |
| 7 | * laj |
| 8 | * |
| 9 | * Distributed by: |
| 10 | * Silicon Laboratories, Inc |
| 11 | * |
| 12 | * File Description: |
| 13 | * This is the implementation file for the SPI driver used |
| 14 | * in the ProSLIC demonstration code. It calls the library |
| 15 | * that initializes and talks to the proslic motherboard. |
| 16 | * |
| 17 | * Dependancies: |
| 18 | * |
| 19 | */ |
| 20 | //#include "../iowrapper.h" // This is the motherboard interface library |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/delay.h> |
| 23 | #include "config_inc/si_voice_datatypes.h" |
| 24 | #include "inc/si_voice_ctrl.h" |
| 25 | #include "spi.h" |
| 26 | #include "proslic_sys.h" |
| 27 | |
| 28 | /* |
| 29 | ** Function: SPI_Init |
| 30 | ** |
| 31 | ** Description: |
| 32 | ** Initializes the SPI interface |
| 33 | ** |
| 34 | ** Input Parameters: |
| 35 | ** none |
| 36 | ** |
| 37 | ** Return: |
| 38 | ** none |
| 39 | */ |
| 40 | int SPI_Init (ctrl_S *hSpi){ |
| 41 | int ret; |
| 42 | |
| 43 | ret = proslic_spi_setup(); |
| 44 | |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | /* |
| 49 | ** Function: spiGci_ResetWrapper |
| 50 | ** |
| 51 | ** Description: |
| 52 | ** Sets the reset pin of the ProSLIC |
| 53 | */ |
| 54 | int ctrl_ResetWrapper (void *hSpiGci, int status){ |
| 55 | |
| 56 | printk("ctrl_ResetWrapper"); |
| 57 | proslic_reset(NULL, status); |
| 58 | |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | /* |
| 63 | ** SPI/GCI register read |
| 64 | ** |
| 65 | ** Description: |
| 66 | ** Reads a single ProSLIC register |
| 67 | ** |
| 68 | ** Input Parameters: |
| 69 | ** channel: ProSLIC channel to read from |
| 70 | ** regAddr: Address of register to read |
| 71 | ** return data: data to read from register |
| 72 | ** |
| 73 | ** Return: |
| 74 | ** none |
| 75 | */ |
| 76 | uInt8 ctrl_ReadRegisterWrapper (void *hSpiGci, uInt8 channel, uInt8 regAddr){ |
| 77 | |
| 78 | |
| 79 | return proslic_read_register(hSpiGci,channel,regAddr); |
| 80 | } |
| 81 | |
| 82 | |
| 83 | /* |
| 84 | ** Function: spiGci_WriteRegisterWrapper |
| 85 | ** |
| 86 | ** Description: |
| 87 | ** Writes a single ProSLIC register |
| 88 | ** |
| 89 | ** Input Parameters: |
| 90 | ** channel: ProSLIC channel to write to |
| 91 | ** address: Address of register to write |
| 92 | ** data: data to write to register |
| 93 | ** |
| 94 | ** Return: |
| 95 | ** none |
| 96 | */ |
| 97 | int ctrl_WriteRegisterWrapper (void *hSpiGci, unsigned char channel, unsigned char regAddr, unsigned char data){ |
| 98 | |
| 99 | proslic_write_register(hSpiGci,channel,regAddr, data); |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | |
| 104 | /* |
| 105 | ** Function: SPI_ReadRAMWrapper |
| 106 | ** |
| 107 | ** Description: |
| 108 | ** Reads a single ProSLIC RAM location |
| 109 | ** |
| 110 | ** Input Parameters: |
| 111 | ** channel: ProSLIC channel to read from |
| 112 | ** address: Address of RAM location to read |
| 113 | ** pData: data to read from RAM location |
| 114 | ** |
| 115 | ** Return: |
| 116 | ** none |
| 117 | */ |
| 118 | ramData ctrl_ReadRAMWrapper (void *hSpiGci, unsigned char channel, unsigned short ramAddr){ |
| 119 | ramData data; |
| 120 | |
| 121 | data = proslic_read_ram(hSpiGci,channel,ramAddr); |
| 122 | |
| 123 | return data; |
| 124 | } |
| 125 | |
| 126 | |
| 127 | /* |
| 128 | ** Function: SPI_WriteRAMWrapper |
| 129 | ** |
| 130 | ** Description: |
| 131 | ** Writes a single ProSLIC RAM location |
| 132 | ** |
| 133 | ** Input Parameters: |
| 134 | ** channel: ProSLIC channel to write to |
| 135 | ** address: Address of RAM location to write |
| 136 | ** data: data to write to RAM location |
| 137 | ** |
| 138 | ** Return: |
| 139 | ** none |
| 140 | */ |
| 141 | int ctrl_WriteRAMWrapper (void *hSpiGci, unsigned char channel, unsigned short ramAddr, ramData data){ |
| 142 | |
| 143 | proslic_write_ram(hSpiGci,channel,ramAddr,data); |
| 144 | |
| 145 | return 0; |
| 146 | } |
| 147 | |
| 148 | |
| 149 | |
| 150 | /* |
| 151 | ** $Log: proslic_spi_api.c,v $ |
| 152 | ** Revision 1.11 2008/07/24 21:06:16 lajordan |
| 153 | ** no message |
| 154 | ** |
| 155 | ** Revision 1.10 2008/03/19 18:20:09 lajordan |
| 156 | ** no message |
| 157 | ** |
| 158 | ** Revision 1.9 2007/06/04 16:35:51 lajordan |
| 159 | ** added profiling |
| 160 | ** |
| 161 | ** Revision 1.8 2007/02/27 19:25:48 lajordan |
| 162 | ** updated api |
| 163 | ** |
| 164 | ** Revision 1.7 2007/02/05 23:43:27 lajordan |
| 165 | ** fixed register access func |
| 166 | ** |
| 167 | ** Revision 1.6 2006/11/22 21:38:19 lajordan |
| 168 | ** broadcast added |
| 169 | ** |
| 170 | ** Revision 1.5 2006/07/21 20:31:26 lajordan |
| 171 | ** fixed cant connect message |
| 172 | ** |
| 173 | ** Revision 1.4 2006/07/19 18:15:56 lajordan |
| 174 | ** fixed spi init |
| 175 | ** |
| 176 | ** Revision 1.3 2006/07/18 21:50:16 lajordan |
| 177 | ** removed extraneous endif |
| 178 | ** |
| 179 | ** Revision 1.2 2006/07/18 21:48:51 lajordan |
| 180 | ** added 16 bit accesses example code |
| 181 | ** |
| 182 | ** Revision 1.1.1.1 2006/07/13 20:26:08 lajordan |
| 183 | ** no message |
| 184 | ** |
| 185 | ** Revision 1.1.1.1 2006/07/06 22:06:23 lajordan |
| 186 | ** no message |
| 187 | ** |
| 188 | ** Revision 1.3 2006/06/29 19:11:18 laj |
| 189 | ** lpt driver completed |
| 190 | ** |
| 191 | ** Revision 1.2 2006/06/21 23:46:58 laj |
| 192 | ** register reads/writes added |
| 193 | ** |
| 194 | ** Revision 1.1 2006/06/21 23:18:07 laj |
| 195 | ** no message |
| 196 | ** |
| 197 | ** Revision 1.1 2006/06/21 22:42:26 laj |
| 198 | ** new api style |
| 199 | ** |
| 200 | ** Revision 1.3 2005/11/14 17:42:34 laj |
| 201 | ** added SPI_init |
| 202 | ** |
| 203 | ** Revision 1.2 2005/11/07 23:20:54 laj |
| 204 | ** took out extra spaces |
| 205 | ** |
| 206 | */ |