RTC auf true
drivers/QSPI.cpp@0:38ceb79fef03, 2018-11-28 (annotated)
- Committer:
- kevman
- Date:
- Wed Nov 28 15:10:15 2018 +0000
- Revision:
- 0:38ceb79fef03
RTC modified
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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kevman | 0:38ceb79fef03 | 1 | /* mbed Microcontroller Library |
kevman | 0:38ceb79fef03 | 2 | * Copyright (c) 2006-2018 ARM Limited |
kevman | 0:38ceb79fef03 | 3 | * |
kevman | 0:38ceb79fef03 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
kevman | 0:38ceb79fef03 | 5 | * you may not use this file except in compliance with the License. |
kevman | 0:38ceb79fef03 | 6 | * You may obtain a copy of the License at |
kevman | 0:38ceb79fef03 | 7 | * |
kevman | 0:38ceb79fef03 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
kevman | 0:38ceb79fef03 | 9 | * |
kevman | 0:38ceb79fef03 | 10 | * Unless required by applicable law or agreed to in writing, software |
kevman | 0:38ceb79fef03 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
kevman | 0:38ceb79fef03 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
kevman | 0:38ceb79fef03 | 13 | * See the License for the specific language governing permissions and |
kevman | 0:38ceb79fef03 | 14 | * limitations under the License. |
kevman | 0:38ceb79fef03 | 15 | */ |
kevman | 0:38ceb79fef03 | 16 | |
kevman | 0:38ceb79fef03 | 17 | #include "drivers/QSPI.h" |
kevman | 0:38ceb79fef03 | 18 | #include "platform/mbed_critical.h" |
kevman | 0:38ceb79fef03 | 19 | #include <string.h> |
kevman | 0:38ceb79fef03 | 20 | |
kevman | 0:38ceb79fef03 | 21 | #if DEVICE_QSPI |
kevman | 0:38ceb79fef03 | 22 | |
kevman | 0:38ceb79fef03 | 23 | namespace mbed { |
kevman | 0:38ceb79fef03 | 24 | |
kevman | 0:38ceb79fef03 | 25 | QSPI *QSPI::_owner = NULL; |
kevman | 0:38ceb79fef03 | 26 | SingletonPtr<PlatformMutex> QSPI::_mutex; |
kevman | 0:38ceb79fef03 | 27 | |
kevman | 0:38ceb79fef03 | 28 | QSPI::QSPI(PinName io0, PinName io1, PinName io2, PinName io3, PinName sclk, PinName ssel, int mode) : _qspi() |
kevman | 0:38ceb79fef03 | 29 | { |
kevman | 0:38ceb79fef03 | 30 | _qspi_io0 = io0; |
kevman | 0:38ceb79fef03 | 31 | _qspi_io1 = io1; |
kevman | 0:38ceb79fef03 | 32 | _qspi_io2 = io2; |
kevman | 0:38ceb79fef03 | 33 | _qspi_io3 = io3; |
kevman | 0:38ceb79fef03 | 34 | _qspi_clk = sclk; |
kevman | 0:38ceb79fef03 | 35 | _qspi_cs = ssel; |
kevman | 0:38ceb79fef03 | 36 | _inst_width = QSPI_CFG_BUS_SINGLE; |
kevman | 0:38ceb79fef03 | 37 | _address_width = QSPI_CFG_BUS_SINGLE; |
kevman | 0:38ceb79fef03 | 38 | _address_size = QSPI_CFG_ADDR_SIZE_24; |
kevman | 0:38ceb79fef03 | 39 | _alt_width = QSPI_CFG_BUS_SINGLE; |
kevman | 0:38ceb79fef03 | 40 | _alt_size = QSPI_CFG_ALT_SIZE_8; |
kevman | 0:38ceb79fef03 | 41 | _data_width = QSPI_CFG_BUS_SINGLE; |
kevman | 0:38ceb79fef03 | 42 | _num_dummy_cycles = 0; |
kevman | 0:38ceb79fef03 | 43 | _mode = mode; |
kevman | 0:38ceb79fef03 | 44 | _hz = ONE_MHZ; |
kevman | 0:38ceb79fef03 | 45 | _initialized = false; |
kevman | 0:38ceb79fef03 | 46 | |
kevman | 0:38ceb79fef03 | 47 | //Go ahead init the device here with the default config |
kevman | 0:38ceb79fef03 | 48 | bool success = _initialize(); |
kevman | 0:38ceb79fef03 | 49 | MBED_ASSERT(success); |
kevman | 0:38ceb79fef03 | 50 | } |
kevman | 0:38ceb79fef03 | 51 | |
kevman | 0:38ceb79fef03 | 52 | qspi_status_t QSPI::configure_format(qspi_bus_width_t inst_width, qspi_bus_width_t address_width, qspi_address_size_t address_size, qspi_bus_width_t alt_width, qspi_alt_size_t alt_size, qspi_bus_width_t data_width, int dummy_cycles) |
kevman | 0:38ceb79fef03 | 53 | { |
kevman | 0:38ceb79fef03 | 54 | qspi_status_t ret_status = QSPI_STATUS_OK; |
kevman | 0:38ceb79fef03 | 55 | |
kevman | 0:38ceb79fef03 | 56 | lock(); |
kevman | 0:38ceb79fef03 | 57 | _inst_width = inst_width; |
kevman | 0:38ceb79fef03 | 58 | _address_width = address_width; |
kevman | 0:38ceb79fef03 | 59 | _address_size = address_size; |
kevman | 0:38ceb79fef03 | 60 | _alt_width = alt_width; |
kevman | 0:38ceb79fef03 | 61 | _alt_size = alt_size; |
kevman | 0:38ceb79fef03 | 62 | _data_width = data_width; |
kevman | 0:38ceb79fef03 | 63 | _num_dummy_cycles = dummy_cycles; |
kevman | 0:38ceb79fef03 | 64 | |
kevman | 0:38ceb79fef03 | 65 | unlock(); |
kevman | 0:38ceb79fef03 | 66 | |
kevman | 0:38ceb79fef03 | 67 | return ret_status; |
kevman | 0:38ceb79fef03 | 68 | } |
kevman | 0:38ceb79fef03 | 69 | |
kevman | 0:38ceb79fef03 | 70 | qspi_status_t QSPI::set_frequency(int hz) |
kevman | 0:38ceb79fef03 | 71 | { |
kevman | 0:38ceb79fef03 | 72 | qspi_status_t ret_status = QSPI_STATUS_OK; |
kevman | 0:38ceb79fef03 | 73 | |
kevman | 0:38ceb79fef03 | 74 | if (_initialized) { |
kevman | 0:38ceb79fef03 | 75 | lock(); |
kevman | 0:38ceb79fef03 | 76 | _hz = hz; |
kevman | 0:38ceb79fef03 | 77 | //If the same owner, just change freq. |
kevman | 0:38ceb79fef03 | 78 | //Otherwise we may have to change mode as well, so call _acquire |
kevman | 0:38ceb79fef03 | 79 | if (_owner == this) { |
kevman | 0:38ceb79fef03 | 80 | if (QSPI_STATUS_OK != qspi_frequency(&_qspi, _hz)) { |
kevman | 0:38ceb79fef03 | 81 | ret_status = QSPI_STATUS_ERROR; |
kevman | 0:38ceb79fef03 | 82 | } |
kevman | 0:38ceb79fef03 | 83 | } else { |
kevman | 0:38ceb79fef03 | 84 | _acquire(); |
kevman | 0:38ceb79fef03 | 85 | } |
kevman | 0:38ceb79fef03 | 86 | unlock(); |
kevman | 0:38ceb79fef03 | 87 | } else { |
kevman | 0:38ceb79fef03 | 88 | ret_status = QSPI_STATUS_ERROR; |
kevman | 0:38ceb79fef03 | 89 | } |
kevman | 0:38ceb79fef03 | 90 | |
kevman | 0:38ceb79fef03 | 91 | return ret_status; |
kevman | 0:38ceb79fef03 | 92 | } |
kevman | 0:38ceb79fef03 | 93 | |
kevman | 0:38ceb79fef03 | 94 | qspi_status_t QSPI::read(int address, char *rx_buffer, size_t *rx_length) |
kevman | 0:38ceb79fef03 | 95 | { |
kevman | 0:38ceb79fef03 | 96 | qspi_status_t ret_status = QSPI_STATUS_ERROR; |
kevman | 0:38ceb79fef03 | 97 | |
kevman | 0:38ceb79fef03 | 98 | if (_initialized) { |
kevman | 0:38ceb79fef03 | 99 | if ((rx_length != NULL) && (rx_buffer != NULL)) { |
kevman | 0:38ceb79fef03 | 100 | if (*rx_length != 0) { |
kevman | 0:38ceb79fef03 | 101 | lock(); |
kevman | 0:38ceb79fef03 | 102 | if (true == _acquire()) { |
kevman | 0:38ceb79fef03 | 103 | _build_qspi_command(-1, address, -1); |
kevman | 0:38ceb79fef03 | 104 | if (QSPI_STATUS_OK == qspi_read(&_qspi, &_qspi_command, rx_buffer, rx_length)) { |
kevman | 0:38ceb79fef03 | 105 | ret_status = QSPI_STATUS_OK; |
kevman | 0:38ceb79fef03 | 106 | } |
kevman | 0:38ceb79fef03 | 107 | } |
kevman | 0:38ceb79fef03 | 108 | unlock(); |
kevman | 0:38ceb79fef03 | 109 | } |
kevman | 0:38ceb79fef03 | 110 | } else { |
kevman | 0:38ceb79fef03 | 111 | ret_status = QSPI_STATUS_INVALID_PARAMETER; |
kevman | 0:38ceb79fef03 | 112 | } |
kevman | 0:38ceb79fef03 | 113 | } |
kevman | 0:38ceb79fef03 | 114 | |
kevman | 0:38ceb79fef03 | 115 | return ret_status; |
kevman | 0:38ceb79fef03 | 116 | } |
kevman | 0:38ceb79fef03 | 117 | |
kevman | 0:38ceb79fef03 | 118 | qspi_status_t QSPI::write(int address, const char *tx_buffer, size_t *tx_length) |
kevman | 0:38ceb79fef03 | 119 | { |
kevman | 0:38ceb79fef03 | 120 | qspi_status_t ret_status = QSPI_STATUS_ERROR; |
kevman | 0:38ceb79fef03 | 121 | |
kevman | 0:38ceb79fef03 | 122 | if (_initialized) { |
kevman | 0:38ceb79fef03 | 123 | if ((tx_length != NULL) && (tx_buffer != NULL)) { |
kevman | 0:38ceb79fef03 | 124 | if (*tx_length != 0) { |
kevman | 0:38ceb79fef03 | 125 | lock(); |
kevman | 0:38ceb79fef03 | 126 | if (true == _acquire()) { |
kevman | 0:38ceb79fef03 | 127 | _build_qspi_command(-1, address, -1); |
kevman | 0:38ceb79fef03 | 128 | if (QSPI_STATUS_OK == qspi_write(&_qspi, &_qspi_command, tx_buffer, tx_length)) { |
kevman | 0:38ceb79fef03 | 129 | ret_status = QSPI_STATUS_OK; |
kevman | 0:38ceb79fef03 | 130 | } |
kevman | 0:38ceb79fef03 | 131 | } |
kevman | 0:38ceb79fef03 | 132 | unlock(); |
kevman | 0:38ceb79fef03 | 133 | } |
kevman | 0:38ceb79fef03 | 134 | } else { |
kevman | 0:38ceb79fef03 | 135 | ret_status = QSPI_STATUS_INVALID_PARAMETER; |
kevman | 0:38ceb79fef03 | 136 | } |
kevman | 0:38ceb79fef03 | 137 | } |
kevman | 0:38ceb79fef03 | 138 | |
kevman | 0:38ceb79fef03 | 139 | return ret_status; |
kevman | 0:38ceb79fef03 | 140 | } |
kevman | 0:38ceb79fef03 | 141 | |
kevman | 0:38ceb79fef03 | 142 | qspi_status_t QSPI::read(int instruction, int alt, int address, char *rx_buffer, size_t *rx_length) |
kevman | 0:38ceb79fef03 | 143 | { |
kevman | 0:38ceb79fef03 | 144 | qspi_status_t ret_status = QSPI_STATUS_ERROR; |
kevman | 0:38ceb79fef03 | 145 | |
kevman | 0:38ceb79fef03 | 146 | if (_initialized) { |
kevman | 0:38ceb79fef03 | 147 | if ((rx_length != NULL) && (rx_buffer != NULL)) { |
kevman | 0:38ceb79fef03 | 148 | if (*rx_length != 0) { |
kevman | 0:38ceb79fef03 | 149 | lock(); |
kevman | 0:38ceb79fef03 | 150 | if (true == _acquire()) { |
kevman | 0:38ceb79fef03 | 151 | _build_qspi_command(instruction, address, alt); |
kevman | 0:38ceb79fef03 | 152 | if (QSPI_STATUS_OK == qspi_read(&_qspi, &_qspi_command, rx_buffer, rx_length)) { |
kevman | 0:38ceb79fef03 | 153 | ret_status = QSPI_STATUS_OK; |
kevman | 0:38ceb79fef03 | 154 | } |
kevman | 0:38ceb79fef03 | 155 | } |
kevman | 0:38ceb79fef03 | 156 | unlock(); |
kevman | 0:38ceb79fef03 | 157 | } |
kevman | 0:38ceb79fef03 | 158 | } else { |
kevman | 0:38ceb79fef03 | 159 | ret_status = QSPI_STATUS_INVALID_PARAMETER; |
kevman | 0:38ceb79fef03 | 160 | } |
kevman | 0:38ceb79fef03 | 161 | } |
kevman | 0:38ceb79fef03 | 162 | |
kevman | 0:38ceb79fef03 | 163 | return ret_status; |
kevman | 0:38ceb79fef03 | 164 | } |
kevman | 0:38ceb79fef03 | 165 | |
kevman | 0:38ceb79fef03 | 166 | qspi_status_t QSPI::write(int instruction, int alt, int address, const char *tx_buffer, size_t *tx_length) |
kevman | 0:38ceb79fef03 | 167 | { |
kevman | 0:38ceb79fef03 | 168 | qspi_status_t ret_status = QSPI_STATUS_ERROR; |
kevman | 0:38ceb79fef03 | 169 | |
kevman | 0:38ceb79fef03 | 170 | if (_initialized) { |
kevman | 0:38ceb79fef03 | 171 | if ((tx_length != NULL) && (tx_buffer != NULL)) { |
kevman | 0:38ceb79fef03 | 172 | if (*tx_length != 0) { |
kevman | 0:38ceb79fef03 | 173 | lock(); |
kevman | 0:38ceb79fef03 | 174 | if (true == _acquire()) { |
kevman | 0:38ceb79fef03 | 175 | _build_qspi_command(instruction, address, alt); |
kevman | 0:38ceb79fef03 | 176 | if (QSPI_STATUS_OK == qspi_write(&_qspi, &_qspi_command, tx_buffer, tx_length)) { |
kevman | 0:38ceb79fef03 | 177 | ret_status = QSPI_STATUS_OK; |
kevman | 0:38ceb79fef03 | 178 | } |
kevman | 0:38ceb79fef03 | 179 | } |
kevman | 0:38ceb79fef03 | 180 | unlock(); |
kevman | 0:38ceb79fef03 | 181 | } |
kevman | 0:38ceb79fef03 | 182 | } else { |
kevman | 0:38ceb79fef03 | 183 | ret_status = QSPI_STATUS_INVALID_PARAMETER; |
kevman | 0:38ceb79fef03 | 184 | } |
kevman | 0:38ceb79fef03 | 185 | } |
kevman | 0:38ceb79fef03 | 186 | |
kevman | 0:38ceb79fef03 | 187 | return ret_status; |
kevman | 0:38ceb79fef03 | 188 | } |
kevman | 0:38ceb79fef03 | 189 | |
kevman | 0:38ceb79fef03 | 190 | qspi_status_t QSPI::command_transfer(int instruction, int address, const char *tx_buffer, size_t tx_length, const char *rx_buffer, size_t rx_length) |
kevman | 0:38ceb79fef03 | 191 | { |
kevman | 0:38ceb79fef03 | 192 | qspi_status_t ret_status = QSPI_STATUS_ERROR; |
kevman | 0:38ceb79fef03 | 193 | |
kevman | 0:38ceb79fef03 | 194 | if (_initialized) { |
kevman | 0:38ceb79fef03 | 195 | lock(); |
kevman | 0:38ceb79fef03 | 196 | if (true == _acquire()) { |
kevman | 0:38ceb79fef03 | 197 | _build_qspi_command(instruction, address, -1); //We just need the command |
kevman | 0:38ceb79fef03 | 198 | if (QSPI_STATUS_OK == qspi_command_transfer(&_qspi, &_qspi_command, (const void *)tx_buffer, tx_length, (void *)rx_buffer, rx_length)) { |
kevman | 0:38ceb79fef03 | 199 | ret_status = QSPI_STATUS_OK; |
kevman | 0:38ceb79fef03 | 200 | } |
kevman | 0:38ceb79fef03 | 201 | } |
kevman | 0:38ceb79fef03 | 202 | unlock(); |
kevman | 0:38ceb79fef03 | 203 | } |
kevman | 0:38ceb79fef03 | 204 | |
kevman | 0:38ceb79fef03 | 205 | return ret_status; |
kevman | 0:38ceb79fef03 | 206 | } |
kevman | 0:38ceb79fef03 | 207 | |
kevman | 0:38ceb79fef03 | 208 | void QSPI::lock() |
kevman | 0:38ceb79fef03 | 209 | { |
kevman | 0:38ceb79fef03 | 210 | _mutex->lock(); |
kevman | 0:38ceb79fef03 | 211 | } |
kevman | 0:38ceb79fef03 | 212 | |
kevman | 0:38ceb79fef03 | 213 | void QSPI::unlock() |
kevman | 0:38ceb79fef03 | 214 | { |
kevman | 0:38ceb79fef03 | 215 | _mutex->unlock(); |
kevman | 0:38ceb79fef03 | 216 | } |
kevman | 0:38ceb79fef03 | 217 | |
kevman | 0:38ceb79fef03 | 218 | // Note: Private helper function to initialize qspi HAL |
kevman | 0:38ceb79fef03 | 219 | bool QSPI::_initialize() |
kevman | 0:38ceb79fef03 | 220 | { |
kevman | 0:38ceb79fef03 | 221 | if (_mode != 0 && _mode != 1) { |
kevman | 0:38ceb79fef03 | 222 | _initialized = false; |
kevman | 0:38ceb79fef03 | 223 | return _initialized; |
kevman | 0:38ceb79fef03 | 224 | } |
kevman | 0:38ceb79fef03 | 225 | |
kevman | 0:38ceb79fef03 | 226 | qspi_status_t ret = qspi_init(&_qspi, _qspi_io0, _qspi_io1, _qspi_io2, _qspi_io3, _qspi_clk, _qspi_cs, _hz, _mode); |
kevman | 0:38ceb79fef03 | 227 | if (QSPI_STATUS_OK == ret) { |
kevman | 0:38ceb79fef03 | 228 | _initialized = true; |
kevman | 0:38ceb79fef03 | 229 | } else { |
kevman | 0:38ceb79fef03 | 230 | _initialized = false; |
kevman | 0:38ceb79fef03 | 231 | } |
kevman | 0:38ceb79fef03 | 232 | |
kevman | 0:38ceb79fef03 | 233 | return _initialized; |
kevman | 0:38ceb79fef03 | 234 | } |
kevman | 0:38ceb79fef03 | 235 | |
kevman | 0:38ceb79fef03 | 236 | // Note: Private function with no locking |
kevman | 0:38ceb79fef03 | 237 | bool QSPI::_acquire() |
kevman | 0:38ceb79fef03 | 238 | { |
kevman | 0:38ceb79fef03 | 239 | if (_owner != this) { |
kevman | 0:38ceb79fef03 | 240 | //This will set freq as well |
kevman | 0:38ceb79fef03 | 241 | _initialize(); |
kevman | 0:38ceb79fef03 | 242 | _owner = this; |
kevman | 0:38ceb79fef03 | 243 | } |
kevman | 0:38ceb79fef03 | 244 | |
kevman | 0:38ceb79fef03 | 245 | return _initialized; |
kevman | 0:38ceb79fef03 | 246 | } |
kevman | 0:38ceb79fef03 | 247 | |
kevman | 0:38ceb79fef03 | 248 | void QSPI::_build_qspi_command(int instruction, int address, int alt) |
kevman | 0:38ceb79fef03 | 249 | { |
kevman | 0:38ceb79fef03 | 250 | memset(&_qspi_command, 0, sizeof(qspi_command_t)); |
kevman | 0:38ceb79fef03 | 251 | //Set up instruction phase parameters |
kevman | 0:38ceb79fef03 | 252 | _qspi_command.instruction.bus_width = _inst_width; |
kevman | 0:38ceb79fef03 | 253 | if (instruction != -1) { |
kevman | 0:38ceb79fef03 | 254 | _qspi_command.instruction.value = instruction; |
kevman | 0:38ceb79fef03 | 255 | _qspi_command.instruction.disabled = false; |
kevman | 0:38ceb79fef03 | 256 | } else { |
kevman | 0:38ceb79fef03 | 257 | _qspi_command.instruction.disabled = true; |
kevman | 0:38ceb79fef03 | 258 | } |
kevman | 0:38ceb79fef03 | 259 | |
kevman | 0:38ceb79fef03 | 260 | //Set up address phase parameters |
kevman | 0:38ceb79fef03 | 261 | _qspi_command.address.bus_width = _address_width; |
kevman | 0:38ceb79fef03 | 262 | _qspi_command.address.size = _address_size; |
kevman | 0:38ceb79fef03 | 263 | if (address != -1) { |
kevman | 0:38ceb79fef03 | 264 | _qspi_command.address.value = address; |
kevman | 0:38ceb79fef03 | 265 | _qspi_command.address.disabled = false; |
kevman | 0:38ceb79fef03 | 266 | } else { |
kevman | 0:38ceb79fef03 | 267 | _qspi_command.address.disabled = true; |
kevman | 0:38ceb79fef03 | 268 | } |
kevman | 0:38ceb79fef03 | 269 | |
kevman | 0:38ceb79fef03 | 270 | //Set up alt phase parameters |
kevman | 0:38ceb79fef03 | 271 | _qspi_command.alt.bus_width = _alt_width; |
kevman | 0:38ceb79fef03 | 272 | _qspi_command.alt.size = _alt_size; |
kevman | 0:38ceb79fef03 | 273 | if (alt != -1) { |
kevman | 0:38ceb79fef03 | 274 | _qspi_command.alt.value = alt; |
kevman | 0:38ceb79fef03 | 275 | _qspi_command.alt.disabled = false; |
kevman | 0:38ceb79fef03 | 276 | } else { |
kevman | 0:38ceb79fef03 | 277 | _qspi_command.alt.disabled = true; |
kevman | 0:38ceb79fef03 | 278 | } |
kevman | 0:38ceb79fef03 | 279 | |
kevman | 0:38ceb79fef03 | 280 | _qspi_command.dummy_count = _num_dummy_cycles; |
kevman | 0:38ceb79fef03 | 281 | |
kevman | 0:38ceb79fef03 | 282 | //Set up bus width for data phase |
kevman | 0:38ceb79fef03 | 283 | _qspi_command.data.bus_width = _data_width; |
kevman | 0:38ceb79fef03 | 284 | } |
kevman | 0:38ceb79fef03 | 285 | |
kevman | 0:38ceb79fef03 | 286 | } // namespace mbed |
kevman | 0:38ceb79fef03 | 287 | |
kevman | 0:38ceb79fef03 | 288 | #endif |