Tsungta Wu / Mbed OS mbed_SPIS_multiByte_example_SOG

fork from Sog

Dependencies:   NNN50_WIFI_API

Fork of mbed_SPIS_multiByte_example_SOG by Sog Yang

spi_api_multibyte.c@7:0ea5460e0de3, 2017-06-21 (annotated)

Committer:
tsungta
Date:
Wed Jun 21 08:54:26 2017 +0000
Revision:
7:0ea5460e0de3
Parent:
6:bce37a45b9cb 
Add TCP send function

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sog_yang 5:6a1155885fc9 1 /*
tsungta 0:b7415ae44dac 2 * Copyright (c) 2013 Nordic Semiconductor ASA
tsungta 0:b7415ae44dac 3 * All rights reserved.
sog_yang 5:6a1155885fc9 4 *
tsungta 0:b7415ae44dac 5 * Redistribution and use in source and binary forms, with or without modification,
tsungta 0:b7415ae44dac 6 * are permitted provided that the following conditions are met:
sog_yang 5:6a1155885fc9 7 *
sog_yang 5:6a1155885fc9 8 * 1. Redistributions of source code must retain the above copyright notice, this list
tsungta 0:b7415ae44dac 9 * of conditions and the following disclaimer.
tsungta 0:b7415ae44dac 10 *
sog_yang 5:6a1155885fc9 11 * 2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA
sog_yang 5:6a1155885fc9 12 * integrated circuit in a product or a software update for such product, must reproduce
sog_yang 5:6a1155885fc9 13 * the above copyright notice, this list of conditions and the following disclaimer in
tsungta 0:b7415ae44dac 14 * the documentation and/or other materials provided with the distribution.
tsungta 0:b7415ae44dac 15 *
sog_yang 5:6a1155885fc9 16 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its contributors may be
sog_yang 5:6a1155885fc9 17 * used to endorse or promote products derived from this software without specific prior
tsungta 0:b7415ae44dac 18 * written permission.
tsungta 0:b7415ae44dac 19 *
sog_yang 5:6a1155885fc9 20 * 4. This software, with or without modification, must only be used with a
tsungta 0:b7415ae44dac 21 * Nordic Semiconductor ASA integrated circuit.
tsungta 0:b7415ae44dac 22 *
sog_yang 5:6a1155885fc9 23 * 5. Any software provided in binary or object form under this license must not be reverse
sog_yang 5:6a1155885fc9 24 * engineered, decompiled, modified and/or disassembled.
sog_yang 5:6a1155885fc9 25 *
tsungta 0:b7415ae44dac 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
tsungta 0:b7415ae44dac 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
tsungta 0:b7415ae44dac 28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
tsungta 0:b7415ae44dac 29 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
tsungta 0:b7415ae44dac 30 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
tsungta 0:b7415ae44dac 31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
tsungta 0:b7415ae44dac 32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
tsungta 0:b7415ae44dac 33 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
tsungta 0:b7415ae44dac 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
tsungta 0:b7415ae44dac 35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
sog_yang 5:6a1155885fc9 36 *
tsungta 0:b7415ae44dac 37 */
tsungta 0:b7415ae44dac 38
tsungta 0:b7415ae44dac 39
tsungta 0:b7415ae44dac 40 #include "spi_api_multibyte.h"
tsungta 0:b7415ae44dac 41
tsungta 0:b7415ae44dac 42 #if DEVICE_SPI
tsungta 0:b7415ae44dac 43
tsungta 0:b7415ae44dac 44 #include "cmsis.h"
tsungta 0:b7415ae44dac 45 #include "pinmap.h"
tsungta 0:b7415ae44dac 46 #include "mbed_assert.h"
tsungta 0:b7415ae44dac 47 #include "mbed_error.h"
tsungta 0:b7415ae44dac 48 #include "nrf_drv_spi.h"
tsungta 0:b7415ae44dac 49 #include "nrf_drv_spis.h"
tsungta 0:b7415ae44dac 50 #include "app_util_platform.h"
tsungta 0:b7415ae44dac 51
tsungta 0:b7415ae44dac 52 #if DEVICE_SPI_ASYNCH
sog_yang 5:6a1155885fc9 53 #define SPI_IDX(obj) ((obj)->spi.spi_idx)
tsungta 0:b7415ae44dac 54 #else
sog_yang 5:6a1155885fc9 55 #define SPI_IDX(obj) ((obj)->spi_idx)
tsungta 0:b7415ae44dac 56 #endif
tsungta 0:b7415ae44dac 57 #define SPI_INFO(obj) (&m_spi_info[SPI_IDX(obj)])
tsungta 0:b7415ae44dac 58 #define MASTER_INST(obj) (&m_instances[SPI_IDX(obj)].master)
tsungta 0:b7415ae44dac 59 #define SLAVE_INST(obj) (&m_instances[SPI_IDX(obj)].slave)
tsungta 0:b7415ae44dac 60
sog_yang 5:6a1155885fc9 61 #define TEST_STRING "STR34567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890END"
sog_yang 5:6a1155885fc9 62 static uint8_t m_tx_buf[] = TEST_STRING; /**< TX buffer. */
sog_yang 5:6a1155885fc9 63 static uint8_t m_rx_buf[sizeof(TEST_STRING) + 1]; /**< RX buffer. */
sog_yang 5:6a1155885fc9 64 static uint8_t m_length = sizeof(m_tx_buf); /**< Transfer length. */
sog_yang 6:bce37a45b9cb 65 static uint8_t tx_m_length = 1; /**< RX length. */
sog_yang 5:6a1155885fc9 66
tsungta 0:b7415ae44dac 67 typedef struct {
tsungta 0:b7415ae44dac 68 bool initialized;
tsungta 0:b7415ae44dac 69 bool master;
tsungta 0:b7415ae44dac 70 uint8_t sck_pin;
tsungta 0:b7415ae44dac 71 uint8_t mosi_pin;
tsungta 0:b7415ae44dac 72 uint8_t miso_pin;
tsungta 0:b7415ae44dac 73 uint8_t ss_pin;
tsungta 0:b7415ae44dac 74 uint8_t spi_mode;
tsungta 0:b7415ae44dac 75 nrf_drv_spi_frequency_t frequency;
tsungta 0:b7415ae44dac 76 volatile union {
tsungta 0:b7415ae44dac 77 bool busy; // master
tsungta 0:b7415ae44dac 78 bool readable; // slave
tsungta 0:b7415ae44dac 79 } flag;
tsungta 0:b7415ae44dac 80 //volatile uint8_t tx_buf;
tsungta 0:b7415ae44dac 81 //volatile uint8_t rx_buf;
tsungta 0:b7415ae44dac 82
tsungta 0:b7415ae44dac 83 #if DEVICE_SPI_ASYNCH
tsungta 0:b7415ae44dac 84 uint32_t handler;
tsungta 0:b7415ae44dac 85 uint32_t event;
tsungta 0:b7415ae44dac 86 #endif
tsungta 0:b7415ae44dac 87 } spi_info_t;
tsungta 0:b7415ae44dac 88
sog_yang 5:6a1155885fc9 89 //#define TEST_STRING "012" //Tsungta, handle 32 bytes per SPI CS cycle
sog_yang 5:6a1155885fc9 90
sog_yang 5:6a1155885fc9 91 int receive_bytes;
sog_yang 5:6a1155885fc9 92
tsungta 0:b7415ae44dac 93 static spi_info_t m_spi_info[SPI_COUNT];
tsungta 0:b7415ae44dac 94
tsungta 0:b7415ae44dac 95 typedef struct {
tsungta 0:b7415ae44dac 96 nrf_drv_spi_t master;
tsungta 0:b7415ae44dac 97 nrf_drv_spis_t slave;
tsungta 0:b7415ae44dac 98 } sdk_driver_instances_t;
tsungta 0:b7415ae44dac 99
tsungta 0:b7415ae44dac 100 void SPI0_TWI0_IRQHandler(void);
tsungta 0:b7415ae44dac 101 void SPI1_TWI1_IRQHandler(void);
tsungta 0:b7415ae44dac 102 void SPIM2_SPIS2_SPI2_IRQHandler(void);
tsungta 0:b7415ae44dac 103
tsungta 0:b7415ae44dac 104 static const peripheral_handler_desc_t spi_hanlder_desc[SPI_COUNT] = {
tsungta 0:b7415ae44dac 105 #if SPI0_ENABLED
tsungta 0:b7415ae44dac 106 {
tsungta 0:b7415ae44dac 107 SPIS0_IRQ,
tsungta 0:b7415ae44dac 108 (uint32_t) SPI0_TWI0_IRQHandler
tsungta 0:b7415ae44dac 109 },
tsungta 0:b7415ae44dac 110 #endif
tsungta 0:b7415ae44dac 111 #if SPI1_ENABLED
tsungta 0:b7415ae44dac 112 {
tsungta 0:b7415ae44dac 113 SPIS1_IRQ,
tsungta 0:b7415ae44dac 114 (uint32_t) SPI1_TWI1_IRQHandler
tsungta 0:b7415ae44dac 115 },
tsungta 0:b7415ae44dac 116 #endif
tsungta 0:b7415ae44dac 117 #if SPI2_ENABLED
tsungta 0:b7415ae44dac 118 {
tsungta 0:b7415ae44dac 119 SPIS2_IRQ,
tsungta 0:b7415ae44dac 120 (uint32_t) SPIM2_SPIS2_SPI2_IRQHandler
tsungta 0:b7415ae44dac 121 },
sog_yang 5:6a1155885fc9 122 #endif
tsungta 0:b7415ae44dac 123 };
tsungta 0:b7415ae44dac 124
tsungta 0:b7415ae44dac 125
tsungta 0:b7415ae44dac 126 static sdk_driver_instances_t m_instances[SPI_COUNT] = {
tsungta 0:b7415ae44dac 127 #if SPI0_ENABLED
tsungta 0:b7415ae44dac 128 {
tsungta 0:b7415ae44dac 129 NRF_DRV_SPI_INSTANCE(0),
tsungta 0:b7415ae44dac 130 NRF_DRV_SPIS_INSTANCE(0)
tsungta 0:b7415ae44dac 131 },
tsungta 0:b7415ae44dac 132 #endif
tsungta 0:b7415ae44dac 133 #if SPI1_ENABLED
tsungta 0:b7415ae44dac 134 {
tsungta 0:b7415ae44dac 135 NRF_DRV_SPI_INSTANCE(1),
tsungta 0:b7415ae44dac 136 NRF_DRV_SPIS_INSTANCE(1)
tsungta 0:b7415ae44dac 137 },
tsungta 0:b7415ae44dac 138 #endif
tsungta 0:b7415ae44dac 139 #if SPI2_ENABLED
tsungta 0:b7415ae44dac 140 {
tsungta 0:b7415ae44dac 141 NRF_DRV_SPI_INSTANCE(2),
tsungta 0:b7415ae44dac 142 NRF_DRV_SPIS_INSTANCE(2)
tsungta 0:b7415ae44dac 143 },
tsungta 0:b7415ae44dac 144 #endif
tsungta 0:b7415ae44dac 145 };
tsungta 0:b7415ae44dac 146
tsungta 0:b7415ae44dac 147 static void master_event_handler(uint8_t spi_idx,
tsungta 0:b7415ae44dac 148 nrf_drv_spi_evt_t const *p_event)
tsungta 0:b7415ae44dac 149 {
tsungta 0:b7415ae44dac 150 spi_info_t *p_spi_info = &m_spi_info[spi_idx];
tsungta 0:b7415ae44dac 151
tsungta 0:b7415ae44dac 152 if (p_event->type == NRF_DRV_SPI_EVENT_DONE) {
tsungta 0:b7415ae44dac 153 p_spi_info->flag.busy = false;
tsungta 0:b7415ae44dac 154 if (p_spi_info->handler) {
tsungta 0:b7415ae44dac 155 void (*handler)(void) = (void (*)(void))p_spi_info->handler;
tsungta 0:b7415ae44dac 156 p_spi_info->handler = 0;
tsungta 0:b7415ae44dac 157 handler();
tsungta 0:b7415ae44dac 158 }
tsungta 0:b7415ae44dac 159 }
tsungta 0:b7415ae44dac 160 }
tsungta 0:b7415ae44dac 161 #define MASTER_EVENT_HANDLER(idx) \
tsungta 0:b7415ae44dac 162 static void master_event_handler_##idx(nrf_drv_spi_evt_t const *p_event) { \
tsungta 0:b7415ae44dac 163 master_event_handler(SPI##idx##_INSTANCE_INDEX, p_event); \
tsungta 0:b7415ae44dac 164 }
tsungta 0:b7415ae44dac 165 #if SPI0_ENABLED
sog_yang 5:6a1155885fc9 166 MASTER_EVENT_HANDLER(0)
tsungta 0:b7415ae44dac 167 #endif
tsungta 0:b7415ae44dac 168 #if SPI1_ENABLED
sog_yang 5:6a1155885fc9 169 MASTER_EVENT_HANDLER(1)
tsungta 0:b7415ae44dac 170 #endif
tsungta 0:b7415ae44dac 171 #if SPI2_ENABLED
sog_yang 5:6a1155885fc9 172 MASTER_EVENT_HANDLER(2)
tsungta 0:b7415ae44dac 173 #endif
tsungta 0:b7415ae44dac 174
tsungta 0:b7415ae44dac 175 static nrf_drv_spi_handler_t const m_master_event_handlers[SPI_COUNT] = {
tsungta 0:b7415ae44dac 176 #if SPI0_ENABLED
tsungta 0:b7415ae44dac 177 master_event_handler_0,
tsungta 0:b7415ae44dac 178 #endif
tsungta 0:b7415ae44dac 179 #if SPI1_ENABLED
tsungta 0:b7415ae44dac 180 master_event_handler_1,
tsungta 0:b7415ae44dac 181 #endif
tsungta 0:b7415ae44dac 182 #if SPI2_ENABLED
tsungta 0:b7415ae44dac 183 master_event_handler_2,
tsungta 0:b7415ae44dac 184 #endif
tsungta 0:b7415ae44dac 185 };
tsungta 0:b7415ae44dac 186
tsungta 0:b7415ae44dac 187
tsungta 0:b7415ae44dac 188 static void slave_event_handler(uint8_t spi_idx,
tsungta 0:b7415ae44dac 189 nrf_drv_spis_event_t event)
tsungta 0:b7415ae44dac 190 {
tsungta 0:b7415ae44dac 191 spi_info_t *p_spi_info = &m_spi_info[spi_idx];
tsungta 0:b7415ae44dac 192
tsungta 0:b7415ae44dac 193 if (event.evt_type == NRF_DRV_SPIS_XFER_DONE) {
sog_yang 5:6a1155885fc9 194 p_spi_info->flag.readable = true;
sog_yang 5:6a1155885fc9 195
sog_yang 5:6a1155885fc9 196 // m_tx_buf = NRF_DRV_SPIS_DEFAULT_ORC;
sog_yang 5:6a1155885fc9 197 }
tsungta 0:b7415ae44dac 198
sog_yang 5:6a1155885fc9 199 /*
sog_yang 5:6a1155885fc9 200 if (event.evt_type == NRF_DRV_SPIS_XFER_DONE) {
sog_yang 5:6a1155885fc9 201 // Signal that there is some data received that could be read.
sog_yang 5:6a1155885fc9 202 if(event.rx_amount == receive_bytes)//Tsungta
sog_yang 5:6a1155885fc9 203 p_spi_info->flag.readable = true;
sog_yang 5:6a1155885fc9 204
sog_yang 5:6a1155885fc9 205 // And prepare for the next transfer.
sog_yang 5:6a1155885fc9 206 // Previous data set in 'spi_slave_write' (if any) has been transmitted,
sog_yang 5:6a1155885fc9 207 // now use the default one, until some new is set by 'spi_slave_write'.
sog_yang 5:6a1155885fc9 208 //m_tx_buf = NRF_DRV_SPIS_DEFAULT_ORC;
sog_yang 5:6a1155885fc9 209 nrf_drv_spis_buffers_set(&m_instances[spi_idx].slave,
sog_yang 5:6a1155885fc9 210 m_tx_buf, m_length, m_rx_buf, m_length);
sog_yang 5:6a1155885fc9 211 }
sog_yang 5:6a1155885fc9 212 */
sog_yang 5:6a1155885fc9 213
tsungta 0:b7415ae44dac 214 }
tsungta 0:b7415ae44dac 215 #define SLAVE_EVENT_HANDLER(idx) \
tsungta 0:b7415ae44dac 216 static void slave_event_handler_##idx(nrf_drv_spis_event_t event) { \
tsungta 0:b7415ae44dac 217 slave_event_handler(SPIS##idx##_INSTANCE_INDEX, event); \
tsungta 0:b7415ae44dac 218 }
tsungta 0:b7415ae44dac 219 #if SPIS0_ENABLED
sog_yang 5:6a1155885fc9 220 SLAVE_EVENT_HANDLER(0)
tsungta 0:b7415ae44dac 221 #endif
tsungta 0:b7415ae44dac 222 #if SPIS1_ENABLED
sog_yang 5:6a1155885fc9 223 SLAVE_EVENT_HANDLER(1)
tsungta 0:b7415ae44dac 224 #endif
tsungta 0:b7415ae44dac 225 #if SPIS2_ENABLED
sog_yang 5:6a1155885fc9 226 SLAVE_EVENT_HANDLER(2)
tsungta 0:b7415ae44dac 227 #endif
tsungta 0:b7415ae44dac 228
tsungta 0:b7415ae44dac 229 static nrf_drv_spis_event_handler_t const m_slave_event_handlers[SPIS_COUNT] = {
tsungta 0:b7415ae44dac 230 #if SPIS0_ENABLED
tsungta 0:b7415ae44dac 231 slave_event_handler_0,
tsungta 0:b7415ae44dac 232 #endif
tsungta 0:b7415ae44dac 233 #if SPIS1_ENABLED
tsungta 0:b7415ae44dac 234 slave_event_handler_1,
tsungta 0:b7415ae44dac 235 #endif
tsungta 0:b7415ae44dac 236 #if SPIS2_ENABLED
tsungta 0:b7415ae44dac 237 slave_event_handler_2,
tsungta 0:b7415ae44dac 238 #endif
tsungta 0:b7415ae44dac 239 };
tsungta 0:b7415ae44dac 240
tsungta 0:b7415ae44dac 241 static void prepare_master_config(nrf_drv_spi_config_t *p_config,
tsungta 0:b7415ae44dac 242 spi_info_t const *p_spi_info)
tsungta 0:b7415ae44dac 243 {
tsungta 0:b7415ae44dac 244 p_config->sck_pin = p_spi_info->sck_pin;
tsungta 0:b7415ae44dac 245 p_config->mosi_pin = p_spi_info->mosi_pin;
tsungta 0:b7415ae44dac 246 p_config->miso_pin = p_spi_info->miso_pin;
tsungta 0:b7415ae44dac 247 p_config->ss_pin = p_spi_info->ss_pin;
tsungta 0:b7415ae44dac 248 p_config->frequency = p_spi_info->frequency;
tsungta 0:b7415ae44dac 249 p_config->mode = (nrf_drv_spi_mode_t)p_spi_info->spi_mode;
tsungta 0:b7415ae44dac 250
tsungta 0:b7415ae44dac 251 p_config->irq_priority = SPI1_CONFIG_IRQ_PRIORITY;
tsungta 0:b7415ae44dac 252 p_config->orc = 0xFF;
tsungta 0:b7415ae44dac 253 p_config->bit_order = NRF_DRV_SPI_BIT_ORDER_MSB_FIRST;
tsungta 0:b7415ae44dac 254 }
tsungta 0:b7415ae44dac 255
tsungta 0:b7415ae44dac 256 static void prepare_slave_config(nrf_drv_spis_config_t *p_config,
tsungta 0:b7415ae44dac 257 spi_info_t const *p_spi_info)
tsungta 0:b7415ae44dac 258 {
tsungta 0:b7415ae44dac 259 p_config->sck_pin = p_spi_info->sck_pin;
tsungta 0:b7415ae44dac 260 p_config->mosi_pin = p_spi_info->mosi_pin;
tsungta 0:b7415ae44dac 261 p_config->miso_pin = p_spi_info->miso_pin;
tsungta 0:b7415ae44dac 262 p_config->csn_pin = p_spi_info->ss_pin;
tsungta 0:b7415ae44dac 263 p_config->mode = (nrf_drv_spis_mode_t)p_spi_info->spi_mode;
tsungta 0:b7415ae44dac 264
tsungta 0:b7415ae44dac 265 p_config->irq_priority = SPIS1_CONFIG_IRQ_PRIORITY;
tsungta 0:b7415ae44dac 266 p_config->orc = NRF_DRV_SPIS_DEFAULT_ORC;
tsungta 0:b7415ae44dac 267 p_config->def = NRF_DRV_SPIS_DEFAULT_DEF;
tsungta 0:b7415ae44dac 268 p_config->bit_order = NRF_DRV_SPIS_BIT_ORDER_MSB_FIRST;
tsungta 0:b7415ae44dac 269 p_config->csn_pullup = NRF_DRV_SPIS_DEFAULT_CSN_PULLUP;
tsungta 0:b7415ae44dac 270 p_config->miso_drive = NRF_DRV_SPIS_DEFAULT_MISO_DRIVE;
tsungta 0:b7415ae44dac 271 }
tsungta 0:b7415ae44dac 272
tsungta 0:b7415ae44dac 273 void spi_init_multibyte(spi_mb_t *obj,
sog_yang 5:6a1155885fc9 274 PinName mosi, PinName miso, PinName sclk, PinName ssel)
tsungta 0:b7415ae44dac 275 {
tsungta 0:b7415ae44dac 276 int i;
tsungta 0:b7415ae44dac 277 for (i = 0; i < SPI_COUNT; ++i) {
tsungta 0:b7415ae44dac 278 spi_info_t *p_spi_info = &m_spi_info[i];
tsungta 0:b7415ae44dac 279 if (!p_spi_info->initialized) {
sog_yang 5:6a1155885fc9 280
tsungta 0:b7415ae44dac 281 NVIC_SetVector(spi_hanlder_desc[i].IRQn, spi_hanlder_desc[i].vector);
sog_yang 5:6a1155885fc9 282
tsungta 0:b7415ae44dac 283 p_spi_info->sck_pin = (uint8_t)sclk;
tsungta 0:b7415ae44dac 284 p_spi_info->mosi_pin = (mosi != NC) ?
sog_yang 5:6a1155885fc9 285 (uint8_t)mosi : NRF_DRV_SPI_PIN_NOT_USED;
tsungta 0:b7415ae44dac 286 p_spi_info->miso_pin = (miso != NC) ?
sog_yang 5:6a1155885fc9 287 (uint8_t)miso : NRF_DRV_SPI_PIN_NOT_USED;
tsungta 0:b7415ae44dac 288 p_spi_info->ss_pin = (ssel != NC) ?
sog_yang 5:6a1155885fc9 289 (uint8_t)ssel : NRF_DRV_SPI_PIN_NOT_USED;
tsungta 0:b7415ae44dac 290 p_spi_info->spi_mode = (uint8_t)NRF_DRV_SPI_MODE_0;
tsungta 0:b7415ae44dac 291 p_spi_info->frequency = NRF_DRV_SPI_FREQ_1M;
tsungta 0:b7415ae44dac 292
tsungta 0:b7415ae44dac 293 // By default each SPI instance is initialized to work as a master.
tsungta 0:b7415ae44dac 294 // Should the slave mode be used, the instance will be reconfigured
tsungta 0:b7415ae44dac 295 // appropriately in 'spi_format'.
tsungta 0:b7415ae44dac 296 nrf_drv_spi_config_t config;
tsungta 0:b7415ae44dac 297 prepare_master_config(&config, p_spi_info);
tsungta 0:b7415ae44dac 298
tsungta 0:b7415ae44dac 299 nrf_drv_spi_t const *p_spi = &m_instances[i].master;
tsungta 0:b7415ae44dac 300 ret_code_t ret_code = nrf_drv_spi_init(p_spi,
sog_yang 5:6a1155885fc9 301 &config, m_master_event_handlers[i]);
tsungta 0:b7415ae44dac 302 if (ret_code == NRF_SUCCESS) {
tsungta 0:b7415ae44dac 303 p_spi_info->initialized = true;
tsungta 0:b7415ae44dac 304 p_spi_info->master = true;
tsungta 0:b7415ae44dac 305 p_spi_info->flag.busy = false;
sog_yang 5:6a1155885fc9 306 #if DEVICE_SPI_ASYNCH
tsungta 0:b7415ae44dac 307 p_spi_info->handler = 0;
sog_yang 5:6a1155885fc9 308 #endif
tsungta 0:b7415ae44dac 309 SPI_IDX(obj) = i;
tsungta 0:b7415ae44dac 310
tsungta 0:b7415ae44dac 311 return;
tsungta 0:b7415ae44dac 312 }
tsungta 0:b7415ae44dac 313 }
tsungta 0:b7415ae44dac 314 }
tsungta 0:b7415ae44dac 315
tsungta 0:b7415ae44dac 316 // No available peripheral
tsungta 0:b7415ae44dac 317 error("No available SPI peripheral\r\n");
tsungta 0:b7415ae44dac 318 }
tsungta 0:b7415ae44dac 319
tsungta 0:b7415ae44dac 320 void spi_free_multibyte(spi_mb_t *obj)
tsungta 0:b7415ae44dac 321 {
tsungta 0:b7415ae44dac 322 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 323 if (p_spi_info->master) {
tsungta 0:b7415ae44dac 324 nrf_drv_spi_uninit(MASTER_INST(obj));
sog_yang 5:6a1155885fc9 325 } else {
tsungta 0:b7415ae44dac 326 nrf_drv_spis_uninit(SLAVE_INST(obj));
tsungta 0:b7415ae44dac 327 }
tsungta 0:b7415ae44dac 328 p_spi_info->initialized = false;
tsungta 0:b7415ae44dac 329 }
tsungta 0:b7415ae44dac 330
tsungta 0:b7415ae44dac 331 int spi_busy_multibyte(spi_mb_t *obj)
tsungta 0:b7415ae44dac 332 {
tsungta 0:b7415ae44dac 333 return (int)(SPI_INFO(obj)->flag.busy);
tsungta 0:b7415ae44dac 334 }
tsungta 0:b7415ae44dac 335
tsungta 0:b7415ae44dac 336 void spi_format_multibyte(spi_mb_t *obj, int bits, int mode, int slave)
tsungta 0:b7415ae44dac 337 {
sog_yang 5:6a1155885fc9 338 /*
tsungta 0:b7415ae44dac 339 if (bits != 8) {
tsungta 0:b7415ae44dac 340 error("Only 8-bits SPI is supported\r\n");
tsungta 0:b7415ae44dac 341 }
tsungta 0:b7415ae44dac 342 if (mode > 3) {
tsungta 0:b7415ae44dac 343 error("SPI format error\r\n");
tsungta 0:b7415ae44dac 344 }
sog_yang 5:6a1155885fc9 345 */
tsungta 0:b7415ae44dac 346
tsungta 0:b7415ae44dac 347 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 348
sog_yang 5:6a1155885fc9 349 if (slave) {
tsungta 0:b7415ae44dac 350 nrf_drv_spis_mode_t spi_modes[4] = {
tsungta 0:b7415ae44dac 351 NRF_DRV_SPIS_MODE_0,
tsungta 0:b7415ae44dac 352 NRF_DRV_SPIS_MODE_1,
tsungta 0:b7415ae44dac 353 NRF_DRV_SPIS_MODE_2,
tsungta 0:b7415ae44dac 354 NRF_DRV_SPIS_MODE_3,
tsungta 0:b7415ae44dac 355 };
tsungta 0:b7415ae44dac 356 nrf_drv_spis_mode_t new_mode = spi_modes[mode];
tsungta 0:b7415ae44dac 357
tsungta 0:b7415ae44dac 358 // If the peripheral is currently working as a master, the SDK driver
tsungta 0:b7415ae44dac 359 // it uses needs to be switched from SPI to SPIS.
tsungta 0:b7415ae44dac 360 if (p_spi_info->master) {
tsungta 0:b7415ae44dac 361 nrf_drv_spi_uninit(MASTER_INST(obj));
tsungta 0:b7415ae44dac 362 }
tsungta 0:b7415ae44dac 363 // I the SPI mode has to be changed, the SDK's SPIS driver needs to be
tsungta 0:b7415ae44dac 364 // re-initialized (there is no other way to change its configuration).
tsungta 0:b7415ae44dac 365 else if (p_spi_info->spi_mode != (uint8_t)new_mode) {
tsungta 0:b7415ae44dac 366 nrf_drv_spis_uninit(SLAVE_INST(obj));
sog_yang 5:6a1155885fc9 367 } else {
tsungta 0:b7415ae44dac 368 return;
tsungta 0:b7415ae44dac 369 }
tsungta 0:b7415ae44dac 370
tsungta 0:b7415ae44dac 371 p_spi_info->spi_mode = (uint8_t)new_mode;
tsungta 0:b7415ae44dac 372 p_spi_info->master = false;
tsungta 0:b7415ae44dac 373 p_spi_info->flag.readable = false;
tsungta 0:b7415ae44dac 374
tsungta 0:b7415ae44dac 375 // Initialize SDK's SPIS driver with the new configuration.
tsungta 0:b7415ae44dac 376 nrf_drv_spis_config_t config;
tsungta 0:b7415ae44dac 377 prepare_slave_config(&config, p_spi_info);
tsungta 0:b7415ae44dac 378 (void)nrf_drv_spis_init(SLAVE_INST(obj), &config,
sog_yang 5:6a1155885fc9 379 m_slave_event_handlers[SPI_IDX(obj)]);
tsungta 0:b7415ae44dac 380
tsungta 0:b7415ae44dac 381 // Prepare the slave for transfer.
tsungta 0:b7415ae44dac 382 //m_tx_buf = NRF_DRV_SPIS_DEFAULT_ORC;
tsungta 0:b7415ae44dac 383 nrf_drv_spis_buffers_set(SLAVE_INST(obj),
sog_yang 6:bce37a45b9cb 384 m_tx_buf, tx_m_length, m_rx_buf, m_length);
tsungta 0:b7415ae44dac 385 }
tsungta 0:b7415ae44dac 386 }
tsungta 0:b7415ae44dac 387
tsungta 0:b7415ae44dac 388 static nrf_drv_spi_frequency_t freq_translate(int hz)
tsungta 0:b7415ae44dac 389 {
tsungta 0:b7415ae44dac 390 nrf_drv_spi_frequency_t frequency;
tsungta 0:b7415ae44dac 391 if (hz<250000) { //125Kbps
tsungta 0:b7415ae44dac 392 frequency = NRF_DRV_SPI_FREQ_125K;
tsungta 0:b7415ae44dac 393 } else if (hz<500000) { //250Kbps
tsungta 0:b7415ae44dac 394 frequency = NRF_DRV_SPI_FREQ_250K;
tsungta 0:b7415ae44dac 395 } else if (hz<1000000) { //500Kbps
tsungta 0:b7415ae44dac 396 frequency = NRF_DRV_SPI_FREQ_500K;
tsungta 0:b7415ae44dac 397 } else if (hz<2000000) { //1Mbps
tsungta 0:b7415ae44dac 398 frequency = NRF_DRV_SPI_FREQ_1M;
tsungta 0:b7415ae44dac 399 } else if (hz<4000000) { //2Mbps
tsungta 0:b7415ae44dac 400 frequency = NRF_DRV_SPI_FREQ_2M;
tsungta 0:b7415ae44dac 401 } else if (hz<8000000) { //4Mbps
tsungta 0:b7415ae44dac 402 frequency = NRF_DRV_SPI_FREQ_4M;
tsungta 0:b7415ae44dac 403 } else { //8Mbps
tsungta 0:b7415ae44dac 404 frequency = NRF_DRV_SPI_FREQ_8M;
tsungta 0:b7415ae44dac 405 }
tsungta 0:b7415ae44dac 406 return frequency;
tsungta 0:b7415ae44dac 407 }
tsungta 0:b7415ae44dac 408
tsungta 0:b7415ae44dac 409 void spi_frequency_multibyte(spi_mb_t *obj, int hz)
tsungta 0:b7415ae44dac 410 {
tsungta 0:b7415ae44dac 411 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 412 nrf_drv_spi_frequency_t new_frequency = freq_translate(hz);
tsungta 0:b7415ae44dac 413
sog_yang 5:6a1155885fc9 414 if (p_spi_info->master) {
tsungta 0:b7415ae44dac 415 if (p_spi_info->frequency != new_frequency) {
tsungta 0:b7415ae44dac 416 p_spi_info->frequency = new_frequency;
tsungta 0:b7415ae44dac 417
tsungta 0:b7415ae44dac 418 nrf_drv_spi_config_t config;
tsungta 0:b7415ae44dac 419 prepare_master_config(&config, p_spi_info);
tsungta 0:b7415ae44dac 420
tsungta 0:b7415ae44dac 421 nrf_drv_spi_t const *p_spi = MASTER_INST(obj);
tsungta 0:b7415ae44dac 422 nrf_drv_spi_uninit(p_spi);
tsungta 0:b7415ae44dac 423 (void)nrf_drv_spi_init(p_spi, &config,
sog_yang 5:6a1155885fc9 424 m_master_event_handlers[SPI_IDX(obj)]);
tsungta 0:b7415ae44dac 425 }
tsungta 0:b7415ae44dac 426 }
tsungta 0:b7415ae44dac 427 // There is no need to set anything in slaves when it comes to frequency,
tsungta 0:b7415ae44dac 428 // since slaves just synchronize with the clock provided by a master.
tsungta 0:b7415ae44dac 429 }
tsungta 0:b7415ae44dac 430
tsungta 0:b7415ae44dac 431 int spi_master_write_multibyte(spi_mb_t *obj, int value)
tsungta 0:b7415ae44dac 432 {
tsungta 0:b7415ae44dac 433 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 434
tsungta 0:b7415ae44dac 435 #if DEVICE_SPI_ASYNCH
tsungta 0:b7415ae44dac 436 while (p_spi_info->flag.busy) {
tsungta 0:b7415ae44dac 437 }
tsungta 0:b7415ae44dac 438 #endif
tsungta 0:b7415ae44dac 439
tsungta 0:b7415ae44dac 440 //m_tx_buf = value;
tsungta 0:b7415ae44dac 441 p_spi_info->flag.busy = true;
tsungta 0:b7415ae44dac 442 (void)nrf_drv_spi_transfer(MASTER_INST(obj),
sog_yang 5:6a1155885fc9 443 m_tx_buf, m_length, m_rx_buf, m_length);
tsungta 0:b7415ae44dac 444 while (p_spi_info->flag.busy) {
tsungta 0:b7415ae44dac 445 }
tsungta 0:b7415ae44dac 446
tsungta 0:b7415ae44dac 447 return m_rx_buf;
tsungta 0:b7415ae44dac 448 }
tsungta 0:b7415ae44dac 449
tsungta 2:c520d7c7739d 450 int spi_slave_receive_multibyte(spi_mb_t *obj, int bytes)
tsungta 0:b7415ae44dac 451 {
tsungta 2:c520d7c7739d 452 receive_bytes = bytes;//Tsungta
tsungta 0:b7415ae44dac 453 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 454 MBED_ASSERT(!p_spi_info->master);
tsungta 0:b7415ae44dac 455 return p_spi_info->flag.readable;
sog_yang 5:6a1155885fc9 456 ;
sog_yang 5:6a1155885fc9 457 }
sog_yang 5:6a1155885fc9 458
sog_yang 5:6a1155885fc9 459 bool get_spi_slave_readable(spi_mb_t *obj)
sog_yang 5:6a1155885fc9 460 {
sog_yang 5:6a1155885fc9 461 spi_info_t *p_spi_info = SPI_INFO(obj);
sog_yang 5:6a1155885fc9 462 return p_spi_info->flag.readable;
tsungta 0:b7415ae44dac 463 }
tsungta 0:b7415ae44dac 464
tsungta 0:b7415ae44dac 465 int spi_slave_read_multibyte(spi_mb_t *obj)
tsungta 0:b7415ae44dac 466 {
sog_yang 5:6a1155885fc9 467
tsungta 0:b7415ae44dac 468 spi_info_t *p_spi_info = SPI_INFO(obj);
sog_yang 5:6a1155885fc9 469 memset(m_rx_buf, 0, m_length);
sog_yang 5:6a1155885fc9 470 p_spi_info->flag.readable = false;
sog_yang 5:6a1155885fc9 471
sog_yang 5:6a1155885fc9 472 nrf_drv_spis_buffers_set(SLAVE_INST(obj),
sog_yang 6:bce37a45b9cb 473 m_tx_buf, tx_m_length, m_rx_buf, m_length);
tsungta 0:b7415ae44dac 474 MBED_ASSERT(!p_spi_info->master);
sog_yang 5:6a1155885fc9 475 /*
tsungta 0:b7415ae44dac 476 while (!p_spi_info->flag.readable) {
sog_yang 5:6a1155885fc9 477 __WFE();
tsungta 0:b7415ae44dac 478 }
sog_yang 5:6a1155885fc9 479 */
sog_yang 5:6a1155885fc9 480 //return m_rx_buf[223]; //Sog test
sog_yang 5:6a1155885fc9 481 return &m_rx_buf;
tsungta 0:b7415ae44dac 482 }
tsungta 0:b7415ae44dac 483
tsungta 2:c520d7c7739d 484 void spi_slave_write_multibyte(spi_mb_t *obj, uint8_t *value, int bytes)
tsungta 0:b7415ae44dac 485 {
tsungta 0:b7415ae44dac 486 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 487 MBED_ASSERT(!p_spi_info->master);
tsungta 0:b7415ae44dac 488
tsungta 3:f9aa81ae7c4c 489 memcpy(m_tx_buf, value, bytes);
tsungta 4:8e796b751cd3 490 m_length = bytes;
tsungta 0:b7415ae44dac 491 }
tsungta 0:b7415ae44dac 492
tsungta 0:b7415ae44dac 493 #if DEVICE_SPI_ASYNCH
tsungta 0:b7415ae44dac 494
tsungta 0:b7415ae44dac 495 void spi_master_transfer_multibyte(spi_mb_t *obj,
sog_yang 5:6a1155885fc9 496 const void *tx, size_t tx_length,
sog_yang 5:6a1155885fc9 497 void *rx, size_t rx_length, uint8_t bit_width,
sog_yang 5:6a1155885fc9 498 uint32_t handler, uint32_t event, DMAUsage hint)
tsungta 0:b7415ae44dac 499 {
tsungta 0:b7415ae44dac 500 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 501 MBED_ASSERT(p_spi_info->master);
tsungta 0:b7415ae44dac 502 (void)hint;
tsungta 0:b7415ae44dac 503 (void)bit_width;
tsungta 0:b7415ae44dac 504
tsungta 0:b7415ae44dac 505 p_spi_info->handler = handler;
tsungta 0:b7415ae44dac 506 p_spi_info->event = event;
tsungta 0:b7415ae44dac 507
tsungta 0:b7415ae44dac 508 p_spi_info->flag.busy = true;
tsungta 0:b7415ae44dac 509 (void)nrf_drv_spi_transfer(MASTER_INST(obj),
sog_yang 5:6a1155885fc9 510 (uint8_t const *)tx, tx_length,
sog_yang 5:6a1155885fc9 511 (uint8_t *)rx, rx_length);
tsungta 0:b7415ae44dac 512 }
tsungta 0:b7415ae44dac 513
tsungta 0:b7415ae44dac 514 uint32_t spi_irq_handler_asynch_multibyte(spi_mb_t *obj)
tsungta 0:b7415ae44dac 515 {
tsungta 0:b7415ae44dac 516 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 517 MBED_ASSERT(p_spi_info->master);
tsungta 0:b7415ae44dac 518 return p_spi_info->event & SPI_EVENT_COMPLETE;
tsungta 0:b7415ae44dac 519 }
tsungta 0:b7415ae44dac 520
tsungta 0:b7415ae44dac 521 uint8_t spi_active_multibyte(spi_mb_t *obj)
tsungta 0:b7415ae44dac 522 {
tsungta 0:b7415ae44dac 523 spi_info_t *p_spi_info = SPI_INFO(obj);
tsungta 0:b7415ae44dac 524 MBED_ASSERT(p_spi_info->master);
tsungta 0:b7415ae44dac 525 return p_spi_info->flag.busy;
tsungta 0:b7415ae44dac 526 }
tsungta 0:b7415ae44dac 527
tsungta 0:b7415ae44dac 528 void spi_abort_asynch_multibyte(spi_mb_t *obj)
tsungta 0:b7415ae44dac 529 {
tsungta 0:b7415ae44dac 530 MBED_ASSERT(SPI_INFO(obj)->master);
tsungta 0:b7415ae44dac 531 nrf_drv_spi_abort(MASTER_INST(obj));
tsungta 0:b7415ae44dac 532 }
tsungta 0:b7415ae44dac 533
tsungta 0:b7415ae44dac 534 #endif // DEVICE_SPI_ASYNCH
tsungta 0:b7415ae44dac 535
tsungta 0:b7415ae44dac 536 #endif // DEVICE_SPI