Maxim Integrated / Mbed OS MAXREFDES220#

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Dependencies:   USBDevice max32630fthr

Interfaces/SmartSensor/SSInterface.cpp@1:7a55c0c7d6d9, 2018-04-11 (annotated)

Committer:
Shaun Kelsey
Date:
Wed Apr 11 16:42:37 2018 -0700
Revision:
1:7a55c0c7d6d9
Parent:
0:da5f5b56060a
Child:
5:795cffb6f01a
Fix compiler warnings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Shaun Kelsey 0:da5f5b56060a 1 /***************************************************************************
Shaun Kelsey 0:da5f5b56060a 2 * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
Shaun Kelsey 0:da5f5b56060a 3 *
Shaun Kelsey 0:da5f5b56060a 4 * Permission is hereby granted, free of charge, to any person obtaining a
Shaun Kelsey 0:da5f5b56060a 5 * copy of this software and associated documentation files (the "Software"),
Shaun Kelsey 0:da5f5b56060a 6 * to deal in the Software without restriction, including without limitation
Shaun Kelsey 0:da5f5b56060a 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
Shaun Kelsey 0:da5f5b56060a 8 * and/or sell copies of the Software, and to permit persons to whom the
Shaun Kelsey 0:da5f5b56060a 9 * Software is furnished to do so, subject to the following conditions:
Shaun Kelsey 0:da5f5b56060a 10 *
Shaun Kelsey 0:da5f5b56060a 11 * The above copyright notice and this permission notice shall be included
Shaun Kelsey 0:da5f5b56060a 12 * in all copies or substantial portions of the Software.
Shaun Kelsey 0:da5f5b56060a 13 *
Shaun Kelsey 0:da5f5b56060a 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
Shaun Kelsey 0:da5f5b56060a 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Shaun Kelsey 0:da5f5b56060a 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
Shaun Kelsey 0:da5f5b56060a 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
Shaun Kelsey 0:da5f5b56060a 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
Shaun Kelsey 0:da5f5b56060a 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
Shaun Kelsey 0:da5f5b56060a 20 * OTHER DEALINGS IN THE SOFTWARE.
Shaun Kelsey 0:da5f5b56060a 21 *
Shaun Kelsey 0:da5f5b56060a 22 * Except as contained in this notice, the name of Maxim Integrated
Shaun Kelsey 0:da5f5b56060a 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
Shaun Kelsey 0:da5f5b56060a 24 * Products, Inc. Branding Policy.
Shaun Kelsey 0:da5f5b56060a 25 *
Shaun Kelsey 0:da5f5b56060a 26 * The mere transfer of this software does not imply any licenses
Shaun Kelsey 0:da5f5b56060a 27 * of trade secrets, proprietary technology, copyrights, patents,
Shaun Kelsey 0:da5f5b56060a 28 * trademarks, maskwork rights, or any other form of intellectual
Shaun Kelsey 0:da5f5b56060a 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
Shaun Kelsey 0:da5f5b56060a 30 * ownership rights.
Shaun Kelsey 0:da5f5b56060a 31 ****************************************************************************
Shaun Kelsey 0:da5f5b56060a 32 */
Shaun Kelsey 0:da5f5b56060a 33
Shaun Kelsey 0:da5f5b56060a 34 #include "SSInterface.h"
Shaun Kelsey 0:da5f5b56060a 35 #include "Peripherals.h"
Shaun Kelsey 0:da5f5b56060a 36 #include "assert.h"
Shaun Kelsey 0:da5f5b56060a 37 #include "utils.h"
Shaun Kelsey 0:da5f5b56060a 38
Shaun Kelsey 0:da5f5b56060a 39 SSInterface::SSInterface(I2C &i2cBus, PinName ss_mfio, PinName ss_reset)
Shaun Kelsey 0:da5f5b56060a 40 :m_i2cBus(&i2cBus), m_spiBus(NULL), mfio_pin(ss_mfio), reset_pin(ss_reset), irq_pin(ss_mfio)
Shaun Kelsey 0:da5f5b56060a 41 {
Shaun Kelsey 0:da5f5b56060a 42 reset_pin.input();
Shaun Kelsey 0:da5f5b56060a 43 irq_pin.fall(callback(this, &SSInterface::irq_handler));
Shaun Kelsey 0:da5f5b56060a 44
Shaun Kelsey 0:da5f5b56060a 45 reset_to_main_app();
Shaun Kelsey 0:da5f5b56060a 46 get_data_type(&data_type, &sc_en);
Shaun Kelsey 0:da5f5b56060a 47 }
Shaun Kelsey 0:da5f5b56060a 48
Shaun Kelsey 0:da5f5b56060a 49 SSInterface::SSInterface(SPI &spiBus, PinName ss_mfio, PinName ss_reset)
Shaun Kelsey 0:da5f5b56060a 50 :m_i2cBus(NULL), m_spiBus(&spiBus), mfio_pin(ss_mfio), reset_pin(ss_reset), irq_pin(ss_mfio)
Shaun Kelsey 0:da5f5b56060a 51 {
Shaun Kelsey 0:da5f5b56060a 52 reset_pin.input();
Shaun Kelsey 0:da5f5b56060a 53 irq_pin.fall(callback(this, &SSInterface::irq_handler));
Shaun Kelsey 0:da5f5b56060a 54
Shaun Kelsey 0:da5f5b56060a 55 reset_to_main_app();
Shaun Kelsey 0:da5f5b56060a 56 get_data_type(&data_type, &sc_en);
Shaun Kelsey 0:da5f5b56060a 57 }
Shaun Kelsey 0:da5f5b56060a 58
Shaun Kelsey 0:da5f5b56060a 59 SSInterface::~SSInterface()
Shaun Kelsey 0:da5f5b56060a 60 {
Shaun Kelsey 0:da5f5b56060a 61 }
Shaun Kelsey 0:da5f5b56060a 62
Shaun Kelsey 0:da5f5b56060a 63 SS_STATUS SSInterface::reset_to_main_app()
Shaun Kelsey 0:da5f5b56060a 64 {
Shaun Kelsey 0:da5f5b56060a 65 irq_pin.disable_irq();
Shaun Kelsey 0:da5f5b56060a 66 #if 0
Shaun Kelsey 0:da5f5b56060a 67 uint8_t cmd_bytes[] = { SS_FAM_W_MODE, SS_CMDIDX_MODE };
Shaun Kelsey 0:da5f5b56060a 68 uint8_t data[] = { 0x00 };
Shaun Kelsey 0:da5f5b56060a 69
Shaun Kelsey 0:da5f5b56060a 70 SS_STATUS status = ss_int->write_cmd(
Shaun Kelsey 0:da5f5b56060a 71 &cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 72 &data[0], ARRAY_SIZE(data),
Shaun Kelsey 0:da5f5b56060a 73 SS_STARTUP_TIME);
Shaun Kelsey 0:da5f5b56060a 74 if (status == SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 75 in_bootldr = false;
Shaun Kelsey 0:da5f5b56060a 76 return status;
Shaun Kelsey 0:da5f5b56060a 77 #else
Shaun Kelsey 0:da5f5b56060a 78 reset_pin.output();
Shaun Kelsey 0:da5f5b56060a 79 cfg_mfio(PIN_OUTPUT);
Shaun Kelsey 0:da5f5b56060a 80 reset_pin.write(0);
Shaun Kelsey 0:da5f5b56060a 81 wait_ms(SS_RESET_TIME);
Shaun Kelsey 0:da5f5b56060a 82 mfio_pin.write(1);
Shaun Kelsey 0:da5f5b56060a 83 reset_pin.write(1);
Shaun Kelsey 0:da5f5b56060a 84 wait_ms(SS_STARTUP_TIME);
Shaun Kelsey 0:da5f5b56060a 85 cfg_mfio(PIN_INPUT);
Shaun Kelsey 0:da5f5b56060a 86 reset_pin.input();
Shaun Kelsey 0:da5f5b56060a 87 // Verify we exited bootloader mode
Shaun Kelsey 0:da5f5b56060a 88 if (in_bootldr_mode() == 0)
Shaun Kelsey 0:da5f5b56060a 89 return SS_SUCCESS;
Shaun Kelsey 0:da5f5b56060a 90 else
Shaun Kelsey 0:da5f5b56060a 91 return SS_ERR_UNKNOWN;
Shaun Kelsey 0:da5f5b56060a 92 #endif
Shaun Kelsey 0:da5f5b56060a 93
Shaun Kelsey 0:da5f5b56060a 94 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 95 }
Shaun Kelsey 0:da5f5b56060a 96
Shaun Kelsey 0:da5f5b56060a 97 SS_STATUS SSInterface::reset_to_bootloader()
Shaun Kelsey 0:da5f5b56060a 98 {
Shaun Kelsey 0:da5f5b56060a 99 irq_pin.disable_irq();
Shaun Kelsey 0:da5f5b56060a 100 #if 0
Shaun Kelsey 0:da5f5b56060a 101 uint8_t cmd_bytes[] = { SS_FAM_W_MODE, SS_CMDIDX_MODE };
Shaun Kelsey 0:da5f5b56060a 102 uint8_t data[] = { SS_MASK_MODE_BOOTLDR };
Shaun Kelsey 0:da5f5b56060a 103
Shaun Kelsey 0:da5f5b56060a 104 SS_STATUS status = ss_int->write_cmd(
Shaun Kelsey 0:da5f5b56060a 105 &cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 106 &data[0], ARRAY_SIZE(data),
Shaun Kelsey 0:da5f5b56060a 107 SS_STARTUP_TIME);
Shaun Kelsey 0:da5f5b56060a 108 if (status == SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 109 in_bootldr = true;
Shaun Kelsey 0:da5f5b56060a 110 return status;
Shaun Kelsey 0:da5f5b56060a 111 #else
Shaun Kelsey 0:da5f5b56060a 112 reset_pin.output();
Shaun Kelsey 0:da5f5b56060a 113 cfg_mfio(PIN_OUTPUT);
Shaun Kelsey 0:da5f5b56060a 114 reset_pin.write(0);
Shaun Kelsey 0:da5f5b56060a 115 wait_ms(SS_RESET_TIME);
Shaun Kelsey 0:da5f5b56060a 116 mfio_pin.write(0);
Shaun Kelsey 0:da5f5b56060a 117 reset_pin.write(1);
Shaun Kelsey 0:da5f5b56060a 118 wait_ms(SS_STARTUP_TIME);
Shaun Kelsey 0:da5f5b56060a 119 cfg_mfio(PIN_INPUT);
Shaun Kelsey 0:da5f5b56060a 120 reset_pin.input();
Shaun Kelsey 0:da5f5b56060a 121 // Verify we entered bootloader mode
Shaun Kelsey 0:da5f5b56060a 122 if (in_bootldr_mode() < 0)
Shaun Kelsey 0:da5f5b56060a 123 return SS_ERR_UNKNOWN;
Shaun Kelsey 0:da5f5b56060a 124 return SS_SUCCESS;
Shaun Kelsey 0:da5f5b56060a 125 #endif
Shaun Kelsey 0:da5f5b56060a 126
Shaun Kelsey 0:da5f5b56060a 127 irq_pin.disable_irq();
Shaun Kelsey 0:da5f5b56060a 128 }
Shaun Kelsey 0:da5f5b56060a 129
Shaun Kelsey 0:da5f5b56060a 130 SS_STATUS SSInterface::reset()
Shaun Kelsey 0:da5f5b56060a 131 {
Shaun Kelsey 0:da5f5b56060a 132 int bootldr = in_bootldr_mode();
Shaun Kelsey 0:da5f5b56060a 133 if (bootldr > 0)
Shaun Kelsey 0:da5f5b56060a 134 return reset_to_bootloader();
Shaun Kelsey 0:da5f5b56060a 135 else if (bootldr == 0)
Shaun Kelsey 0:da5f5b56060a 136 return reset_to_main_app();
Shaun Kelsey 0:da5f5b56060a 137 else
Shaun Kelsey 0:da5f5b56060a 138 return SS_ERR_UNKNOWN;
Shaun Kelsey 0:da5f5b56060a 139 }
Shaun Kelsey 0:da5f5b56060a 140
Shaun Kelsey 0:da5f5b56060a 141 SS_STATUS SSInterface::self_test(int idx, uint8_t *result, int sleep_ms){
Shaun Kelsey 0:da5f5b56060a 142 uint8_t cmd_bytes[] = {SS_FAM_R_SELFTEST, idx};
Shaun Kelsey 0:da5f5b56060a 143 uint8_t rxbuf[2];
Shaun Kelsey 0:da5f5b56060a 144 SS_STATUS ret;
Shaun Kelsey 0:da5f5b56060a 145
Shaun Kelsey 0:da5f5b56060a 146 result[0] = 0xFF;
Shaun Kelsey 0:da5f5b56060a 147 ret = read_cmd(cmd_bytes, 2, (uint8_t *)0, 0, rxbuf, ARRAY_SIZE(rxbuf), sleep_ms);
Shaun Kelsey 0:da5f5b56060a 148 result[0] = rxbuf[1];
Shaun Kelsey 0:da5f5b56060a 149 return ret;
Shaun Kelsey 0:da5f5b56060a 150 }
Shaun Kelsey 0:da5f5b56060a 151
Shaun Kelsey 0:da5f5b56060a 152 void SSInterface::cfg_mfio(PinDirection dir)
Shaun Kelsey 0:da5f5b56060a 153 {
Shaun Kelsey 0:da5f5b56060a 154 if (dir == PIN_INPUT) {
Shaun Kelsey 0:da5f5b56060a 155 mfio_pin.input();
Shaun Kelsey 0:da5f5b56060a 156 mfio_pin.mode(PullUp);
Shaun Kelsey 0:da5f5b56060a 157 } else {
Shaun Kelsey 0:da5f5b56060a 158 mfio_pin.output();
Shaun Kelsey 0:da5f5b56060a 159 }
Shaun Kelsey 0:da5f5b56060a 160 }
Shaun Kelsey 0:da5f5b56060a 161
Shaun Kelsey 0:da5f5b56060a 162 void SSInterface::enable_irq()
Shaun Kelsey 0:da5f5b56060a 163 {
Shaun Kelsey 0:da5f5b56060a 164 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 165 }
Shaun Kelsey 0:da5f5b56060a 166 void SSInterface::disable_irq()
Shaun Kelsey 0:da5f5b56060a 167 {
Shaun Kelsey 0:da5f5b56060a 168 irq_pin.disable_irq();
Shaun Kelsey 0:da5f5b56060a 169 }
Shaun Kelsey 0:da5f5b56060a 170
Shaun Kelsey 0:da5f5b56060a 171 void SSInterface::mfio_selftest(){
Shaun Kelsey 0:da5f5b56060a 172 disable_irq();
Shaun Kelsey 0:da5f5b56060a 173 irq_pin.fall(callback(this, &SSInterface::irq_handler_selftest));
Shaun Kelsey 0:da5f5b56060a 174 enable_irq();
Shaun Kelsey 0:da5f5b56060a 175 }
Shaun Kelsey 0:da5f5b56060a 176
Shaun Kelsey 0:da5f5b56060a 177 int SSInterface::in_bootldr_mode()
Shaun Kelsey 0:da5f5b56060a 178 {
Shaun Kelsey 0:da5f5b56060a 179 uint8_t cmd_bytes[] = { SS_FAM_R_MODE, SS_CMDIDX_MODE };
Shaun Kelsey 0:da5f5b56060a 180 uint8_t rxbuf[2] = { 0 };
Shaun Kelsey 0:da5f5b56060a 181
Shaun Kelsey 0:da5f5b56060a 182 SS_STATUS status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 183 0, 0,
Shaun Kelsey 0:da5f5b56060a 184 &rxbuf[0], ARRAY_SIZE(rxbuf));
Shaun Kelsey 0:da5f5b56060a 185 if (status != SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 186 return -1;
Shaun Kelsey 0:da5f5b56060a 187
Shaun Kelsey 0:da5f5b56060a 188 return (rxbuf[1] & SS_MASK_MODE_BOOTLDR);
Shaun Kelsey 0:da5f5b56060a 189 }
Shaun Kelsey 0:da5f5b56060a 190
Shaun Kelsey 0:da5f5b56060a 191 const char* SSInterface::get_ss_fw_version()
Shaun Kelsey 0:da5f5b56060a 192 {
Shaun Kelsey 0:da5f5b56060a 193 uint8_t cmd_bytes[2];
Shaun Kelsey 0:da5f5b56060a 194 uint8_t rxbuf[4];
Shaun Kelsey 0:da5f5b56060a 195
Shaun Kelsey 0:da5f5b56060a 196 int bootldr = in_bootldr_mode();
Shaun Kelsey 0:da5f5b56060a 197
Shaun Kelsey 0:da5f5b56060a 198 if (bootldr > 0) {
Shaun Kelsey 0:da5f5b56060a 199 cmd_bytes[0] = SS_FAM_R_BOOTLOADER;
Shaun Kelsey 0:da5f5b56060a 200 cmd_bytes[1] = SS_CMDIDX_BOOTFWVERSION;
Shaun Kelsey 0:da5f5b56060a 201 } else if (bootldr == 0) {
Shaun Kelsey 0:da5f5b56060a 202 cmd_bytes[0] = SS_FAM_R_IDENTITY;
Shaun Kelsey 0:da5f5b56060a 203 cmd_bytes[1] = SS_CMDIDX_FWVERSION;
Shaun Kelsey 0:da5f5b56060a 204 } else {
Shaun Kelsey 0:da5f5b56060a 205 return plat_name;
Shaun Kelsey 0:da5f5b56060a 206 }
Shaun Kelsey 0:da5f5b56060a 207
Shaun Kelsey 0:da5f5b56060a 208 SS_STATUS status = read_cmd(
Shaun Kelsey 0:da5f5b56060a 209 &cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 210 0, 0,
Shaun Kelsey 0:da5f5b56060a 211 &rxbuf[0], ARRAY_SIZE(rxbuf));
Shaun Kelsey 0:da5f5b56060a 212
Shaun Kelsey 0:da5f5b56060a 213 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 214 snprintf(fw_version, sizeof(fw_version),
Shaun Kelsey 0:da5f5b56060a 215 "%d.%d.%d", rxbuf[1], rxbuf[2], rxbuf[3]);
Shaun Kelsey 0:da5f5b56060a 216 pr_info("fw_version:%s\r\n", fw_version);
Shaun Kelsey 0:da5f5b56060a 217 }
Shaun Kelsey 0:da5f5b56060a 218
Shaun Kelsey 0:da5f5b56060a 219 return &fw_version[0];
Shaun Kelsey 0:da5f5b56060a 220 }
Shaun Kelsey 0:da5f5b56060a 221
Shaun Kelsey 0:da5f5b56060a 222 const char* SSInterface::get_ss_platform_name()
Shaun Kelsey 0:da5f5b56060a 223 {
Shaun Kelsey 0:da5f5b56060a 224 uint8_t cmd_bytes[] = { SS_FAM_R_IDENTITY, SS_CMDIDX_PLATTYPE };
Shaun Kelsey 0:da5f5b56060a 225 uint8_t rxbuf[2];
Shaun Kelsey 0:da5f5b56060a 226
Shaun Kelsey 0:da5f5b56060a 227 SS_STATUS status = read_cmd(
Shaun Kelsey 0:da5f5b56060a 228 &cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 229 0, 0,
Shaun Kelsey 0:da5f5b56060a 230 &rxbuf[0], ARRAY_SIZE(rxbuf));
Shaun Kelsey 0:da5f5b56060a 231
Shaun Kelsey 0:da5f5b56060a 232 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 233 if (rxbuf[1] == SS_PLAT_MAX3263X) {
Shaun Kelsey 0:da5f5b56060a 234 if (in_bootldr_mode() > 0) {
Shaun Kelsey 0:da5f5b56060a 235 plat_name = SS_BOOTLOADER_PLATFORM_MAX3263X;
Shaun Kelsey 0:da5f5b56060a 236 } else {
Shaun Kelsey 0:da5f5b56060a 237 plat_name = SS_PLATFORM_MAX3263X;
Shaun Kelsey 0:da5f5b56060a 238 }
Shaun Kelsey 0:da5f5b56060a 239 } else if (rxbuf[1] == SS_PLAT_MAX32660) {
Shaun Kelsey 0:da5f5b56060a 240 if (in_bootldr_mode() > 0) {
Shaun Kelsey 0:da5f5b56060a 241 plat_name = SS_BOOTLOADER_PLATFORM_MAX32660;
Shaun Kelsey 0:da5f5b56060a 242 } else {
Shaun Kelsey 0:da5f5b56060a 243 plat_name = SS_PLATFORM_MAX32660;
Shaun Kelsey 0:da5f5b56060a 244 }
Shaun Kelsey 0:da5f5b56060a 245 }
Shaun Kelsey 0:da5f5b56060a 246 }
Shaun Kelsey 0:da5f5b56060a 247
Shaun Kelsey 0:da5f5b56060a 248 return plat_name;
Shaun Kelsey 0:da5f5b56060a 249 }
Shaun Kelsey 0:da5f5b56060a 250
Shaun Kelsey 0:da5f5b56060a 251 SS_STATUS SSInterface::write_cmd(uint8_t *cmd_bytes, int cmd_bytes_len,
Shaun Kelsey 0:da5f5b56060a 252 uint8_t *data, int data_len,
Shaun Kelsey 0:da5f5b56060a 253 int sleep_ms)
Shaun Kelsey 0:da5f5b56060a 254 {
Shaun Kelsey 0:da5f5b56060a 255 int total_len = data_len + cmd_bytes_len;
Shaun Kelsey 0:da5f5b56060a 256
Shaun Kelsey 0:da5f5b56060a 257 if (total_len <= SS_SMALL_BUF_SIZE) {
Shaun Kelsey 0:da5f5b56060a 258 return write_cmd_small(cmd_bytes, cmd_bytes_len, data, data_len, sleep_ms);
Shaun Kelsey 0:da5f5b56060a 259 } else if (total_len <= SS_LARGE_BUF_SIZE) {
Shaun Kelsey 0:da5f5b56060a 260 return write_cmd_large(cmd_bytes, cmd_bytes_len, data, data_len, sleep_ms);
Shaun Kelsey 0:da5f5b56060a 261 } else {
Shaun Kelsey 0:da5f5b56060a 262 assert_msg(true, "Tried to send I2C tx larger than maximum allowed size\n");
Shaun Kelsey 0:da5f5b56060a 263 return SS_ERR_DATA_FORMAT;
Shaun Kelsey 0:da5f5b56060a 264 }
Shaun Kelsey 0:da5f5b56060a 265 }
Shaun Kelsey 0:da5f5b56060a 266
Shaun Kelsey 0:da5f5b56060a 267 SS_STATUS SSInterface::write_cmd(uint8_t *tx_buf, int tx_len, int sleep_ms)
Shaun Kelsey 0:da5f5b56060a 268 {
Shaun Kelsey 0:da5f5b56060a 269 pr_info("write_cmd: ");
Shaun Kelsey 0:da5f5b56060a 270 for (int i = 0; i < tx_len; i++) {
Shaun Kelsey 0:da5f5b56060a 271 pr_info("0x%02X ", tx_buf[i]);
Shaun Kelsey 0:da5f5b56060a 272 }
Shaun Kelsey 0:da5f5b56060a 273 pr_info("\r\n");
Shaun Kelsey 0:da5f5b56060a 274
Shaun Kelsey 0:da5f5b56060a 275 int ret = 0;
Shaun Kelsey 0:da5f5b56060a 276 ret |= m_i2cBus->write(SS_I2C_8BIT_SLAVE_ADDR, (char*)tx_buf, tx_len);
Shaun Kelsey 0:da5f5b56060a 277
Shaun Kelsey 0:da5f5b56060a 278 if (ret != 0) {
Shaun Kelsey 0:da5f5b56060a 279 pr_err("m_i2cBus->write returned %d\r\n", ret);
Shaun Kelsey 0:da5f5b56060a 280 return SS_ERR_UNAVAILABLE;
Shaun Kelsey 0:da5f5b56060a 281 }
Shaun Kelsey 0:da5f5b56060a 282
Shaun Kelsey 0:da5f5b56060a 283 wait_ms(sleep_ms);
Shaun Kelsey 0:da5f5b56060a 284
Shaun Kelsey 0:da5f5b56060a 285 char status_byte;
Shaun Kelsey 0:da5f5b56060a 286 ret |= m_i2cBus->read(SS_I2C_8BIT_SLAVE_ADDR, &status_byte, 1);
Shaun Kelsey 0:da5f5b56060a 287
Shaun Kelsey 0:da5f5b56060a 288 if (ret != 0) {
Shaun Kelsey 0:da5f5b56060a 289 pr_err("m_i2cBus->read returned %d\r\n", ret);
Shaun Kelsey 0:da5f5b56060a 290 return SS_ERR_UNAVAILABLE;
Shaun Kelsey 0:da5f5b56060a 291 }
Shaun Kelsey 0:da5f5b56060a 292
Shaun Kelsey 0:da5f5b56060a 293 pr_info("status_byte: %d\r\n", status_byte);
Shaun Kelsey 0:da5f5b56060a 294
Shaun Kelsey 0:da5f5b56060a 295 return (SS_STATUS)status_byte;
Shaun Kelsey 0:da5f5b56060a 296 }
Shaun Kelsey 0:da5f5b56060a 297
Shaun Kelsey 0:da5f5b56060a 298 SS_STATUS SSInterface::write_cmd_small(uint8_t *cmd_bytes, int cmd_bytes_len,
Shaun Kelsey 0:da5f5b56060a 299 uint8_t *data, int data_len,
Shaun Kelsey 0:da5f5b56060a 300 int sleep_ms)
Shaun Kelsey 0:da5f5b56060a 301 {
Shaun Kelsey 0:da5f5b56060a 302 uint8_t write_buf[SS_SMALL_BUF_SIZE];
Shaun Kelsey 0:da5f5b56060a 303 memcpy(write_buf, cmd_bytes, cmd_bytes_len);
Shaun Kelsey 0:da5f5b56060a 304 memcpy(write_buf + cmd_bytes_len, data, data_len);
Shaun Kelsey 0:da5f5b56060a 305
Shaun Kelsey 0:da5f5b56060a 306 SS_STATUS status = write_cmd(write_buf, cmd_bytes_len + data_len, sleep_ms);
Shaun Kelsey 0:da5f5b56060a 307 return status;
Shaun Kelsey 0:da5f5b56060a 308 }
Shaun Kelsey 0:da5f5b56060a 309
Shaun Kelsey 0:da5f5b56060a 310 SS_STATUS SSInterface::write_cmd_large(uint8_t *cmd_bytes, int cmd_bytes_len,
Shaun Kelsey 0:da5f5b56060a 311 uint8_t *data, int data_len,
Shaun Kelsey 0:da5f5b56060a 312 int sleep_ms)
Shaun Kelsey 0:da5f5b56060a 313 {
Shaun Kelsey 0:da5f5b56060a 314 uint8_t write_buf[SS_LARGE_BUF_SIZE];
Shaun Kelsey 0:da5f5b56060a 315 memcpy(write_buf, cmd_bytes, cmd_bytes_len);
Shaun Kelsey 0:da5f5b56060a 316 memcpy(write_buf + cmd_bytes_len, data, data_len);
Shaun Kelsey 0:da5f5b56060a 317
Shaun Kelsey 0:da5f5b56060a 318 SS_STATUS status = write_cmd(write_buf, cmd_bytes_len + data_len, sleep_ms);
Shaun Kelsey 0:da5f5b56060a 319 return status;
Shaun Kelsey 0:da5f5b56060a 320 }
Shaun Kelsey 0:da5f5b56060a 321
Shaun Kelsey 0:da5f5b56060a 322 SS_STATUS SSInterface::read_cmd(uint8_t *cmd_bytes, int cmd_bytes_len,
Shaun Kelsey 0:da5f5b56060a 323 uint8_t *data, int data_len,
Shaun Kelsey 0:da5f5b56060a 324 uint8_t *rxbuf, int rxbuf_sz,
Shaun Kelsey 0:da5f5b56060a 325 int sleep_ms)
Shaun Kelsey 0:da5f5b56060a 326 {
Shaun Kelsey 0:da5f5b56060a 327 int ret = 0;
Shaun Kelsey 0:da5f5b56060a 328
Shaun Kelsey 0:da5f5b56060a 329 pr_info("read_cmd: ");
Shaun Kelsey 0:da5f5b56060a 330 for (int i = 0; i < cmd_bytes_len; i++) {
Shaun Kelsey 0:da5f5b56060a 331 pr_info("0x%02X ", cmd_bytes[i]);
Shaun Kelsey 0:da5f5b56060a 332 }
Shaun Kelsey 0:da5f5b56060a 333 pr_info("\r\n");
Shaun Kelsey 0:da5f5b56060a 334
Shaun Kelsey 0:da5f5b56060a 335 ret |= m_i2cBus->write(SS_I2C_8BIT_SLAVE_ADDR, (char*)cmd_bytes, cmd_bytes_len, (data_len != 0));
Shaun Kelsey 0:da5f5b56060a 336
Shaun Kelsey 0:da5f5b56060a 337 if (data_len != 0) {
Shaun Kelsey 0:da5f5b56060a 338 ret |= m_i2cBus->write(SS_I2C_8BIT_SLAVE_ADDR, (char*)data, data_len, false);
Shaun Kelsey 0:da5f5b56060a 339 }
Shaun Kelsey 0:da5f5b56060a 340
Shaun Kelsey 0:da5f5b56060a 341 if (ret != 0) {
Shaun Kelsey 0:da5f5b56060a 342 pr_err("m_i2cBus->write returned %d\r\n", ret);
Shaun Kelsey 0:da5f5b56060a 343 return SS_ERR_UNAVAILABLE;
Shaun Kelsey 0:da5f5b56060a 344 }
Shaun Kelsey 0:da5f5b56060a 345
Shaun Kelsey 0:da5f5b56060a 346 wait_ms(sleep_ms);
Shaun Kelsey 0:da5f5b56060a 347
Shaun Kelsey 0:da5f5b56060a 348 ret |= m_i2cBus->read(SS_I2C_8BIT_SLAVE_ADDR, (char*)rxbuf, rxbuf_sz);
Shaun Kelsey 0:da5f5b56060a 349
Shaun Kelsey 0:da5f5b56060a 350 if (ret != 0) {
Shaun Kelsey 0:da5f5b56060a 351 pr_err("m_i2cBus->read returned %d\r\n", ret);
Shaun Kelsey 0:da5f5b56060a 352 return SS_ERR_UNAVAILABLE;
Shaun Kelsey 0:da5f5b56060a 353 }
Shaun Kelsey 0:da5f5b56060a 354
Shaun Kelsey 0:da5f5b56060a 355 wait_ms(sleep_ms);
Shaun Kelsey 0:da5f5b56060a 356 pr_info("status_byte: %d\r\n", rxbuf[0]);
Shaun Kelsey 0:da5f5b56060a 357 pr_info("data: ");
Shaun Kelsey 0:da5f5b56060a 358 for (int i = 1; i < rxbuf_sz; i++) {
Shaun Kelsey 0:da5f5b56060a 359 pr_info("0x%02X ", rxbuf[i]);
Shaun Kelsey 0:da5f5b56060a 360 }
Shaun Kelsey 0:da5f5b56060a 361 pr_info("\r\n");
Shaun Kelsey 0:da5f5b56060a 362
Shaun Kelsey 0:da5f5b56060a 363 return (SS_STATUS)rxbuf[0];
Shaun Kelsey 0:da5f5b56060a 364 }
Shaun Kelsey 0:da5f5b56060a 365
Shaun Kelsey 0:da5f5b56060a 366 SS_STATUS SSInterface::get_reg(int idx, uint8_t addr, uint32_t *val)
Shaun Kelsey 0:da5f5b56060a 367 {
Shaun Kelsey 0:da5f5b56060a 368 assert_msg((idx <= SS_MAX_SUPPORTED_SENSOR_NUM), "idx must be < SS_MAX_SUPPORTED_SENSOR_NUM, or update code to handle variable length idx values");
Shaun Kelsey 0:da5f5b56060a 369
Shaun Kelsey 0:da5f5b56060a 370 uint8_t cmd_bytes[] = { SS_FAM_R_REGATTRIBS, (uint8_t)idx };
Shaun Kelsey 0:da5f5b56060a 371 uint8_t rx_reg_attribs[3] = {0};
Shaun Kelsey 0:da5f5b56060a 372
Shaun Kelsey 0:da5f5b56060a 373 SS_STATUS status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 374 0, 0,
Shaun Kelsey 0:da5f5b56060a 375 &rx_reg_attribs[0], ARRAY_SIZE(rx_reg_attribs));
Shaun Kelsey 0:da5f5b56060a 376
Shaun Kelsey 0:da5f5b56060a 377 if (status != SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 378 return status;
Shaun Kelsey 0:da5f5b56060a 379
Shaun Kelsey 0:da5f5b56060a 380 int reg_width = rx_reg_attribs[1];
Shaun Kelsey 0:da5f5b56060a 381
Shaun Kelsey 0:da5f5b56060a 382 uint8_t cmd_bytes2[] = { SS_FAM_R_READREG, (uint8_t)idx, addr };
Shaun Kelsey 0:da5f5b56060a 383 uint8_t rxbuf[5] = {0};
Shaun Kelsey 0:da5f5b56060a 384
Shaun Kelsey 0:da5f5b56060a 385 status = read_cmd(&cmd_bytes2[0], ARRAY_SIZE(cmd_bytes2),
Shaun Kelsey 0:da5f5b56060a 386 0, 0,
Shaun Kelsey 0:da5f5b56060a 387 &rxbuf[0], ARRAY_SIZE(rxbuf));
Shaun Kelsey 0:da5f5b56060a 388
Shaun Kelsey 0:da5f5b56060a 389 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 390 *val = 0;
Shaun Kelsey 0:da5f5b56060a 391 for (int i = 0; i < reg_width; i++) {
Shaun Kelsey 0:da5f5b56060a 392 *val = (*val << 8) | rxbuf[i + 1];
Shaun Kelsey 0:da5f5b56060a 393 }
Shaun Kelsey 0:da5f5b56060a 394 }
Shaun Kelsey 0:da5f5b56060a 395
Shaun Kelsey 0:da5f5b56060a 396 return status;
Shaun Kelsey 0:da5f5b56060a 397 }
Shaun Kelsey 0:da5f5b56060a 398
Shaun Kelsey 0:da5f5b56060a 399 SS_STATUS SSInterface::set_reg(int idx, uint8_t addr, uint32_t val, int byte_size)
Shaun Kelsey 0:da5f5b56060a 400 {
Shaun Kelsey 0:da5f5b56060a 401 assert_msg((idx <= SS_MAX_SUPPORTED_SENSOR_NUM), "idx must be < SS_MAX_SUPPORTED_SENSOR_NUM, or update code to handle variable length idx values");
Shaun Kelsey 0:da5f5b56060a 402
Shaun Kelsey 0:da5f5b56060a 403 uint8_t cmd_bytes[] = { SS_FAM_W_WRITEREG, (uint8_t)idx, addr };
Shaun Kelsey 0:da5f5b56060a 404 uint8_t data_bytes[4];
Shaun Kelsey 0:da5f5b56060a 405 for (int i = 0; i < byte_size; i++) {
Shaun Kelsey 0:da5f5b56060a 406 data_bytes[i] = (val >> (8 * (byte_size - 1)) & 0xFF);
Shaun Kelsey 0:da5f5b56060a 407 }
Shaun Kelsey 0:da5f5b56060a 408
Shaun Kelsey 0:da5f5b56060a 409 SS_STATUS status = write_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 410 &data_bytes[0], byte_size);
Shaun Kelsey 0:da5f5b56060a 411
Shaun Kelsey 0:da5f5b56060a 412 return status;
Shaun Kelsey 0:da5f5b56060a 413 }
Shaun Kelsey 0:da5f5b56060a 414
Shaun Kelsey 0:da5f5b56060a 415 SS_STATUS SSInterface::dump_reg(int idx, addr_val_pair* reg_vals, int reg_vals_sz, int* num_regs)
Shaun Kelsey 0:da5f5b56060a 416 {
Shaun Kelsey 0:da5f5b56060a 417 assert_msg((idx <= SS_MAX_SUPPORTED_SENSOR_NUM), "idx must be < SS_MAX_SUPPORTED_SENSOR_NUM, or update code to handle variable length idx values");
Shaun Kelsey 0:da5f5b56060a 418
Shaun Kelsey 0:da5f5b56060a 419 uint8_t cmd_bytes[] = { SS_FAM_R_REGATTRIBS, (uint8_t)idx };
Shaun Kelsey 0:da5f5b56060a 420 uint8_t rx_reg_attribs[3] = {0};
Shaun Kelsey 0:da5f5b56060a 421
Shaun Kelsey 0:da5f5b56060a 422 SS_STATUS status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 423 0, 0,
Shaun Kelsey 0:da5f5b56060a 424 &rx_reg_attribs[0], ARRAY_SIZE(rx_reg_attribs));
Shaun Kelsey 0:da5f5b56060a 425
Shaun Kelsey 0:da5f5b56060a 426 if (status != SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 427 return status;
Shaun Kelsey 0:da5f5b56060a 428
Shaun Kelsey 0:da5f5b56060a 429 int reg_width = rx_reg_attribs[1];
Shaun Kelsey 0:da5f5b56060a 430 *num_regs = rx_reg_attribs[2];
Shaun Kelsey 0:da5f5b56060a 431 assert_msg((*num_regs <= reg_vals_sz), "Need to increase reg_vals array to hold all dump_reg data");
Shaun Kelsey 0:da5f5b56060a 432 assert_msg(((size_t)reg_width <= sizeof(uint32_t)), "IC returned register values greater than 4 bytes in width");
Shaun Kelsey 0:da5f5b56060a 433
Shaun Kelsey 0:da5f5b56060a 434 int dump_reg_sz = (*num_regs) * (reg_width + 1) + 1; //+1 to reg_width for address, +1 for status byte
Shaun Kelsey 0:da5f5b56060a 435
Shaun Kelsey 0:da5f5b56060a 436 uint8_t rxbuf[512];
Shaun Kelsey 0:da5f5b56060a 437 assert_msg(((size_t)dump_reg_sz <= sizeof(rxbuf)), "Need to increase buffer size to receive dump_reg data");
Shaun Kelsey 0:da5f5b56060a 438
Shaun Kelsey 0:da5f5b56060a 439 cmd_bytes[0] = SS_FAM_R_DUMPREG;
Shaun Kelsey 0:da5f5b56060a 440 status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 441 0, 0,
Shaun Kelsey 0:da5f5b56060a 442 &rxbuf[0], dump_reg_sz, SS_DUMP_REG_SLEEP_MS);
Shaun Kelsey 0:da5f5b56060a 443
Shaun Kelsey 0:da5f5b56060a 444 if (status != SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 445 return status;
Shaun Kelsey 0:da5f5b56060a 446
Shaun Kelsey 0:da5f5b56060a 447 //rxbuf format is [status][addr0](reg_width x [val0])[addr1](reg_width x [val1])...
Shaun Kelsey 0:da5f5b56060a 448 for (int reg = 0; reg < *num_regs; reg++) {
Shaun Kelsey 0:da5f5b56060a 449 reg_vals[reg].addr = rxbuf[(reg * (reg_width + 1)) + 1];
Shaun Kelsey 0:da5f5b56060a 450 uint32_t *val = &(reg_vals[reg].val);
Shaun Kelsey 0:da5f5b56060a 451 *val = 0;
Shaun Kelsey 0:da5f5b56060a 452 for (int byte = 0; byte < reg_width; byte++) {
Shaun Kelsey 0:da5f5b56060a 453 *val = (*val << 8) | rxbuf[(reg * (reg_width + 1)) + byte + 2];
Shaun Kelsey 0:da5f5b56060a 454 }
Shaun Kelsey 0:da5f5b56060a 455 }
Shaun Kelsey 0:da5f5b56060a 456
Shaun Kelsey 0:da5f5b56060a 457 return SS_SUCCESS;
Shaun Kelsey 0:da5f5b56060a 458 }
Shaun Kelsey 0:da5f5b56060a 459
Shaun Kelsey 0:da5f5b56060a 460 SS_STATUS SSInterface::enable_sensor(int idx, int mode, ss_data_req *data_req)
Shaun Kelsey 0:da5f5b56060a 461 {
Shaun Kelsey 0:da5f5b56060a 462 assert_msg((idx <= SS_MAX_SUPPORTED_SENSOR_NUM), "idx must be < SS_MAX_SUPPORTED_SENSOR_NUM, or update code to handle variable length idx values");
Shaun Kelsey 0:da5f5b56060a 463 assert_msg((mode <= SS_MAX_SUPPORTED_MODE_NUM), "mode must be < SS_MAX_SUPPORTED_MODE_NUM, or update code to handle variable length mode values");
Shaun Kelsey 0:da5f5b56060a 464 assert_msg((mode != 0), "Tried to enable sensor to mode 0, but mode 0 is disable");
Shaun Kelsey 0:da5f5b56060a 465
Shaun Kelsey 0:da5f5b56060a 466 uint8_t cmd_bytes[] = { SS_FAM_W_SENSORMODE, (uint8_t)idx, (uint8_t)mode };
Shaun Kelsey 0:da5f5b56060a 467
Shaun Kelsey 0:da5f5b56060a 468 SS_STATUS status = write_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes), 0, 0, SS_ENABLE_SENSOR_SLEEP_MS);
Shaun Kelsey 0:da5f5b56060a 469
Shaun Kelsey 0:da5f5b56060a 470 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 471 sensor_enabled_mode[idx] = mode;
Shaun Kelsey 0:da5f5b56060a 472 sensor_data_reqs[idx] = data_req;
Shaun Kelsey 0:da5f5b56060a 473 }
Shaun Kelsey 0:da5f5b56060a 474 return status;
Shaun Kelsey 0:da5f5b56060a 475 }
Shaun Kelsey 0:da5f5b56060a 476
Shaun Kelsey 0:da5f5b56060a 477 SS_STATUS SSInterface::disable_sensor(int idx)
Shaun Kelsey 0:da5f5b56060a 478 {
Shaun Kelsey 0:da5f5b56060a 479 assert_msg((idx <= SS_MAX_SUPPORTED_SENSOR_NUM), "idx must be < SS_MAX_SUPPORTED_SENSOR_NUM, or update code to handle variable length idx values");
Shaun Kelsey 0:da5f5b56060a 480 uint8_t cmd_bytes[] = { SS_FAM_W_SENSORMODE, (uint8_t)idx, 0 };
Shaun Kelsey 0:da5f5b56060a 481
Shaun Kelsey 0:da5f5b56060a 482 SS_STATUS status = write_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes), 0, 0, SS_ENABLE_SENSOR_SLEEP_MS);
Shaun Kelsey 0:da5f5b56060a 483
Shaun Kelsey 0:da5f5b56060a 484 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 485 sensor_enabled_mode[idx] = 0;
Shaun Kelsey 0:da5f5b56060a 486 sensor_data_reqs[idx] = 0;
Shaun Kelsey 0:da5f5b56060a 487 }
Shaun Kelsey 0:da5f5b56060a 488
Shaun Kelsey 0:da5f5b56060a 489 return status;
Shaun Kelsey 0:da5f5b56060a 490 }
Shaun Kelsey 0:da5f5b56060a 491
Shaun Kelsey 0:da5f5b56060a 492 SS_STATUS SSInterface::enable_algo(int idx, int mode, ss_data_req *data_req)
Shaun Kelsey 0:da5f5b56060a 493 {
Shaun Kelsey 0:da5f5b56060a 494 assert_msg((idx <= SS_MAX_SUPPORTED_ALGO_NUM), "idx must be < SS_MAX_SUPPORTED_ALGO_NUM, or update code to handle variable length idx values");
Shaun Kelsey 0:da5f5b56060a 495 assert_msg((mode <= SS_MAX_SUPPORTED_MODE_NUM), "mode must be < SS_MAX_SUPPORTED_MODE_NUM, or update code to handle variable length mode values");
Shaun Kelsey 0:da5f5b56060a 496 assert_msg((mode != 0), "Tried to enable algo to mode 0, but mode 0 is disable");
Shaun Kelsey 0:da5f5b56060a 497
Shaun Kelsey 0:da5f5b56060a 498 uint8_t cmd_bytes[] = { SS_FAM_W_ALGOMODE, (uint8_t)idx, (uint8_t)mode };
Shaun Kelsey 0:da5f5b56060a 499
Shaun Kelsey 0:da5f5b56060a 500 SS_STATUS status = write_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes), 0, 0, SS_ENABLE_SENSOR_SLEEP_MS);
Shaun Kelsey 0:da5f5b56060a 501
Shaun Kelsey 0:da5f5b56060a 502 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 503 algo_enabled_mode[idx] = mode;
Shaun Kelsey 0:da5f5b56060a 504 algo_data_reqs[idx] = data_req;
Shaun Kelsey 0:da5f5b56060a 505 }
Shaun Kelsey 0:da5f5b56060a 506
Shaun Kelsey 0:da5f5b56060a 507 return status;
Shaun Kelsey 0:da5f5b56060a 508 }
Shaun Kelsey 0:da5f5b56060a 509
Shaun Kelsey 0:da5f5b56060a 510 SS_STATUS SSInterface::disable_algo(int idx)
Shaun Kelsey 0:da5f5b56060a 511 {
Shaun Kelsey 0:da5f5b56060a 512 assert_msg((idx <= SS_MAX_SUPPORTED_ALGO_NUM), "idx must be < SS_MAX_SUPPORTED_ALGO_NUM, or update code to handle variable length idx values");
Shaun Kelsey 0:da5f5b56060a 513 uint8_t cmd_bytes[] = { SS_FAM_W_ALGOMODE, (uint8_t)idx, 0 };
Shaun Kelsey 0:da5f5b56060a 514
Shaun Kelsey 0:da5f5b56060a 515 SS_STATUS status = write_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes), 0, 0, SS_ENABLE_SENSOR_SLEEP_MS);
Shaun Kelsey 0:da5f5b56060a 516
Shaun Kelsey 0:da5f5b56060a 517 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 518 algo_enabled_mode[idx] = 0;
Shaun Kelsey 0:da5f5b56060a 519 algo_data_reqs[idx] = 0;
Shaun Kelsey 0:da5f5b56060a 520 }
Shaun Kelsey 0:da5f5b56060a 521
Shaun Kelsey 0:da5f5b56060a 522 return status;
Shaun Kelsey 0:da5f5b56060a 523 }
Shaun Kelsey 0:da5f5b56060a 524
Shaun Kelsey 0:da5f5b56060a 525 SS_STATUS SSInterface::set_data_type(int data_type, bool sc_en)
Shaun Kelsey 0:da5f5b56060a 526 {
Shaun Kelsey 0:da5f5b56060a 527 assert_msg((data_type >= 0) && (data_type <= 3), "Invalid value for data_type");
Shaun Kelsey 0:da5f5b56060a 528 uint8_t cmd_bytes[] = { SS_FAM_W_COMMCHAN, SS_CMDIDX_OUTPUTMODE };
Shaun Kelsey 1:7a55c0c7d6d9 529 uint8_t data_bytes[] = { (uint8_t)((sc_en ? SS_MASK_OUTPUTMODE_SC_EN : 0) |
Shaun Kelsey 1:7a55c0c7d6d9 530 ((data_type << SS_SHIFT_OUTPUTMODE_DATATYPE) & SS_MASK_OUTPUTMODE_DATATYPE)) };
Shaun Kelsey 0:da5f5b56060a 531
Shaun Kelsey 0:da5f5b56060a 532 SS_STATUS status = write_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 533 &data_bytes[0], ARRAY_SIZE(data_bytes));
Shaun Kelsey 0:da5f5b56060a 534
Shaun Kelsey 0:da5f5b56060a 535 this->data_type = data_type;
Shaun Kelsey 0:da5f5b56060a 536 this->sc_en = sc_en;
Shaun Kelsey 0:da5f5b56060a 537
Shaun Kelsey 0:da5f5b56060a 538 return status;
Shaun Kelsey 0:da5f5b56060a 539 }
Shaun Kelsey 0:da5f5b56060a 540
Shaun Kelsey 0:da5f5b56060a 541
Shaun Kelsey 0:da5f5b56060a 542 SS_STATUS SSInterface::get_data_type(int *data_type, bool *sc_en)
Shaun Kelsey 0:da5f5b56060a 543 {
Shaun Kelsey 0:da5f5b56060a 544 uint8_t cmd_bytes[] = { SS_FAM_R_COMMCHAN, SS_CMDIDX_OUTPUTMODE };
Shaun Kelsey 0:da5f5b56060a 545 uint8_t rxbuf[2] = {0};
Shaun Kelsey 0:da5f5b56060a 546
Shaun Kelsey 0:da5f5b56060a 547 SS_STATUS status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 548 0, 0,
Shaun Kelsey 0:da5f5b56060a 549 &rxbuf[0], ARRAY_SIZE(rxbuf));
Shaun Kelsey 0:da5f5b56060a 550 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 551 *data_type =
Shaun Kelsey 0:da5f5b56060a 552 (rxbuf[1] & SS_MASK_OUTPUTMODE_DATATYPE) >> SS_SHIFT_OUTPUTMODE_DATATYPE;
Shaun Kelsey 0:da5f5b56060a 553 *sc_en =
Shaun Kelsey 0:da5f5b56060a 554 (bool)((rxbuf[1] & SS_MASK_OUTPUTMODE_SC_EN) >> SS_SHIFT_OUTPUTMODE_SC_EN);
Shaun Kelsey 0:da5f5b56060a 555 }
Shaun Kelsey 0:da5f5b56060a 556
Shaun Kelsey 0:da5f5b56060a 557 return status;
Shaun Kelsey 0:da5f5b56060a 558 }
Shaun Kelsey 0:da5f5b56060a 559
Shaun Kelsey 0:da5f5b56060a 560 void SSInterface::fifo_sample_size(int data_type, int *sample_size)
Shaun Kelsey 0:da5f5b56060a 561 {
Shaun Kelsey 0:da5f5b56060a 562 *sample_size = 0;
Shaun Kelsey 0:da5f5b56060a 563
Shaun Kelsey 0:da5f5b56060a 564 if (data_type == SS_DATATYPE_RAW || data_type == SS_DATATYPE_BOTH) {
Shaun Kelsey 0:da5f5b56060a 565 for (int i = 0; i < SS_MAX_SUPPORTED_SENSOR_NUM; i++) {
Shaun Kelsey 0:da5f5b56060a 566 if (sensor_enabled_mode[i]) {
Shaun Kelsey 0:da5f5b56060a 567 assert_msg(sensor_data_reqs[i], "no ss_data_req found for enabled sensor");
Shaun Kelsey 0:da5f5b56060a 568 *sample_size += sensor_data_reqs[i]->data_size;
Shaun Kelsey 0:da5f5b56060a 569 }
Shaun Kelsey 0:da5f5b56060a 570 }
Shaun Kelsey 0:da5f5b56060a 571 }
Shaun Kelsey 0:da5f5b56060a 572
Shaun Kelsey 0:da5f5b56060a 573 if (data_type == SS_DATATYPE_ALGO || data_type == SS_DATATYPE_BOTH) {
Shaun Kelsey 0:da5f5b56060a 574 for (int i = 0; i < SS_MAX_SUPPORTED_ALGO_NUM; i++) {
Shaun Kelsey 0:da5f5b56060a 575 if (algo_enabled_mode[i]) {
Shaun Kelsey 0:da5f5b56060a 576 assert_msg(algo_data_reqs[i], "no ss_data_req found for enabled algo");
Shaun Kelsey 0:da5f5b56060a 577 *sample_size += algo_data_reqs[i]->data_size;
Shaun Kelsey 0:da5f5b56060a 578 }
Shaun Kelsey 0:da5f5b56060a 579 }
Shaun Kelsey 0:da5f5b56060a 580 }
Shaun Kelsey 0:da5f5b56060a 581 }
Shaun Kelsey 0:da5f5b56060a 582
Shaun Kelsey 0:da5f5b56060a 583 SS_STATUS SSInterface::num_avail_samples(int *num_samples)
Shaun Kelsey 0:da5f5b56060a 584 {
Shaun Kelsey 0:da5f5b56060a 585 uint8_t cmd_bytes[] = { SS_FAM_R_OUTPUTFIFO, SS_CMDIDX_OUT_NUMSAMPLES };
Shaun Kelsey 0:da5f5b56060a 586 uint8_t rxbuf[2] = {0};
Shaun Kelsey 0:da5f5b56060a 587
Shaun Kelsey 0:da5f5b56060a 588 SS_STATUS status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 589 0, 0,
Shaun Kelsey 0:da5f5b56060a 590 &rxbuf[0], ARRAY_SIZE(rxbuf));
Shaun Kelsey 0:da5f5b56060a 591
Shaun Kelsey 0:da5f5b56060a 592 if (status == SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 593 *num_samples = rxbuf[1];
Shaun Kelsey 0:da5f5b56060a 594 }
Shaun Kelsey 0:da5f5b56060a 595
Shaun Kelsey 0:da5f5b56060a 596 return status;
Shaun Kelsey 0:da5f5b56060a 597 }
Shaun Kelsey 0:da5f5b56060a 598
Shaun Kelsey 0:da5f5b56060a 599 SS_STATUS SSInterface::read_fifo_data(
Shaun Kelsey 0:da5f5b56060a 600 int num_samples, int sample_size,
Shaun Kelsey 0:da5f5b56060a 601 uint8_t* databuf, int databuf_sz)
Shaun Kelsey 0:da5f5b56060a 602 {
Shaun Kelsey 0:da5f5b56060a 603 int bytes_to_read = num_samples * sample_size + 1; //+1 for status byte
Shaun Kelsey 0:da5f5b56060a 604 assert_msg((bytes_to_read <= databuf_sz), "databuf too small");
Shaun Kelsey 0:da5f5b56060a 605
Shaun Kelsey 0:da5f5b56060a 606 uint8_t cmd_bytes[] = { SS_FAM_R_OUTPUTFIFO, SS_CMDIDX_READFIFO };
Shaun Kelsey 0:da5f5b56060a 607
Shaun Kelsey 0:da5f5b56060a 608 pr_err("[reading %d bytes (%d samples)\r\n", bytes_to_read, num_samples);
Shaun Kelsey 0:da5f5b56060a 609
Shaun Kelsey 0:da5f5b56060a 610 SS_STATUS status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 611 0, 0,
Shaun Kelsey 0:da5f5b56060a 612 databuf, bytes_to_read, 15);
Shaun Kelsey 0:da5f5b56060a 613
Shaun Kelsey 0:da5f5b56060a 614 return status;
Shaun Kelsey 0:da5f5b56060a 615 }
Shaun Kelsey 0:da5f5b56060a 616
Shaun Kelsey 0:da5f5b56060a 617 void SSInterface::irq_handler()
Shaun Kelsey 0:da5f5b56060a 618 {
Shaun Kelsey 0:da5f5b56060a 619 uint8_t databuf[512];
Shaun Kelsey 0:da5f5b56060a 620 uint8_t sample_count;
Shaun Kelsey 0:da5f5b56060a 621
Shaun Kelsey 0:da5f5b56060a 622 uint8_t cmd_bytes[] = { SS_FAM_R_STATUS, SS_CMDIDX_STATUS };
Shaun Kelsey 0:da5f5b56060a 623 uint8_t rxbuf[2] = {0};
Shaun Kelsey 0:da5f5b56060a 624
Shaun Kelsey 0:da5f5b56060a 625 irq_pin.disable_irq();
Shaun Kelsey 0:da5f5b56060a 626
Shaun Kelsey 0:da5f5b56060a 627 SS_STATUS status = read_cmd(&cmd_bytes[0], ARRAY_SIZE(cmd_bytes),
Shaun Kelsey 0:da5f5b56060a 628 0, 0,
Shaun Kelsey 0:da5f5b56060a 629 &rxbuf[0], ARRAY_SIZE(rxbuf));
Shaun Kelsey 0:da5f5b56060a 630
Shaun Kelsey 0:da5f5b56060a 631 if (status != SS_SUCCESS) {
Shaun Kelsey 0:da5f5b56060a 632 pr_err("Couldn't read status byte of SmartSensor!");
Shaun Kelsey 0:da5f5b56060a 633 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 634 return;
Shaun Kelsey 0:da5f5b56060a 635 }
Shaun Kelsey 0:da5f5b56060a 636
Shaun Kelsey 0:da5f5b56060a 637 if (rxbuf[1] & SS_MASK_STATUS_ERR) {
Shaun Kelsey 0:da5f5b56060a 638 pr_err("SmartSensor status error: %d", rxbuf[1] & SS_MASK_STATUS_ERR);
Shaun Kelsey 0:da5f5b56060a 639 }
Shaun Kelsey 0:da5f5b56060a 640 if (rxbuf[1] & SS_MASK_STATUS_FIFO_OUT_OVR) {
Shaun Kelsey 0:da5f5b56060a 641 pr_err("SmartSensor Output FIFO overflow!");
Shaun Kelsey 0:da5f5b56060a 642 }
Shaun Kelsey 0:da5f5b56060a 643 if (rxbuf[1] & SS_MASK_STATUS_FIFO_IN_OVR) {
Shaun Kelsey 0:da5f5b56060a 644 pr_err("SmartSensor Input FIFO overflow!");
Shaun Kelsey 0:da5f5b56060a 645 }
Shaun Kelsey 0:da5f5b56060a 646
Shaun Kelsey 0:da5f5b56060a 647 if (rxbuf[1] & SS_MASK_STATUS_DATA_RDY) {
Shaun Kelsey 0:da5f5b56060a 648 int num_samples;
Shaun Kelsey 0:da5f5b56060a 649 status = num_avail_samples(&num_samples);
Shaun Kelsey 0:da5f5b56060a 650 if (status != SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 651 {
Shaun Kelsey 0:da5f5b56060a 652 pr_err("Couldn't read number of available samples in SmartSensor Output FIFO");
Shaun Kelsey 0:da5f5b56060a 653 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 654 return;
Shaun Kelsey 0:da5f5b56060a 655 }
Shaun Kelsey 0:da5f5b56060a 656
Shaun Kelsey 0:da5f5b56060a 657 if (num_samples <= 0)
Shaun Kelsey 0:da5f5b56060a 658 {
Shaun Kelsey 0:da5f5b56060a 659 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 660 return;
Shaun Kelsey 0:da5f5b56060a 661 }
Shaun Kelsey 0:da5f5b56060a 662
Shaun Kelsey 0:da5f5b56060a 663
Shaun Kelsey 0:da5f5b56060a 664 int sample_size;
Shaun Kelsey 0:da5f5b56060a 665 fifo_sample_size(data_type, &sample_size);
Shaun Kelsey 0:da5f5b56060a 666
Shaun Kelsey 1:7a55c0c7d6d9 667 size_t bytes_to_read = num_samples * sample_size + 1; //+1 for status byte
Shaun Kelsey 0:da5f5b56060a 668 if (bytes_to_read > sizeof(databuf)) {
Shaun Kelsey 0:da5f5b56060a 669 //Reduce number of samples to read to fit in buffer
Shaun Kelsey 0:da5f5b56060a 670 num_samples = (sizeof(databuf) - 1) / sample_size;
Shaun Kelsey 0:da5f5b56060a 671 }
Shaun Kelsey 0:da5f5b56060a 672
Shaun Kelsey 0:da5f5b56060a 673 status = read_fifo_data(num_samples, sample_size, &databuf[0], sizeof(databuf));
Shaun Kelsey 0:da5f5b56060a 674 if (status != SS_SUCCESS)
Shaun Kelsey 0:da5f5b56060a 675 {
Shaun Kelsey 0:da5f5b56060a 676 pr_err("Couldn't read from SmartSensor Output FIFO");
Shaun Kelsey 0:da5f5b56060a 677 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 678 return;
Shaun Kelsey 0:da5f5b56060a 679 }
Shaun Kelsey 0:da5f5b56060a 680
Shaun Kelsey 0:da5f5b56060a 681 //Skip status byte
Shaun Kelsey 0:da5f5b56060a 682 uint8_t *data_ptr = &databuf[1];
Shaun Kelsey 0:da5f5b56060a 683
Shaun Kelsey 0:da5f5b56060a 684 int i = 0;
Shaun Kelsey 0:da5f5b56060a 685 for (i = 0; i < num_samples; i++) {
Shaun Kelsey 0:da5f5b56060a 686 if (sc_en) {
Shaun Kelsey 0:da5f5b56060a 687 sample_count = *data_ptr++;
Shaun Kelsey 0:da5f5b56060a 688 pr_info("Received sample #%d", sample_count);
Shaun Kelsey 0:da5f5b56060a 689 }
Shaun Kelsey 0:da5f5b56060a 690
Shaun Kelsey 0:da5f5b56060a 691 //Chop up data and send to modules with enabled sensors
Shaun Kelsey 0:da5f5b56060a 692 if (data_type == SS_DATATYPE_RAW || data_type == SS_DATATYPE_BOTH) {
Shaun Kelsey 0:da5f5b56060a 693 for (int i = 0; i < SS_MAX_SUPPORTED_SENSOR_NUM; i++) {
Shaun Kelsey 0:da5f5b56060a 694 if (sensor_enabled_mode[i]) {
Shaun Kelsey 0:da5f5b56060a 695 assert_msg(sensor_data_reqs[i],
Shaun Kelsey 0:da5f5b56060a 696 "no ss_data_req found for enabled sensor");
Shaun Kelsey 0:da5f5b56060a 697 sensor_data_reqs[i]->callback(data_ptr);
Shaun Kelsey 0:da5f5b56060a 698 data_ptr += sensor_data_reqs[i]->data_size;
Shaun Kelsey 0:da5f5b56060a 699 }
Shaun Kelsey 0:da5f5b56060a 700 }
Shaun Kelsey 0:da5f5b56060a 701 }
Shaun Kelsey 0:da5f5b56060a 702 if (data_type == SS_DATATYPE_ALGO || data_type == SS_DATATYPE_BOTH) {
Shaun Kelsey 0:da5f5b56060a 703 for (int i = 0; i < SS_MAX_SUPPORTED_ALGO_NUM; i++) {
Shaun Kelsey 0:da5f5b56060a 704 if (algo_enabled_mode[i]) {
Shaun Kelsey 0:da5f5b56060a 705 assert_msg(algo_data_reqs[i],
Shaun Kelsey 0:da5f5b56060a 706 "no ss_data_req found for enabled algo");
Shaun Kelsey 0:da5f5b56060a 707 algo_data_reqs[i]->callback(data_ptr);
Shaun Kelsey 0:da5f5b56060a 708 data_ptr += algo_data_reqs[i]->data_size;
Shaun Kelsey 0:da5f5b56060a 709 }
Shaun Kelsey 0:da5f5b56060a 710 }
Shaun Kelsey 0:da5f5b56060a 711 }
Shaun Kelsey 0:da5f5b56060a 712 }
Shaun Kelsey 0:da5f5b56060a 713 }
Shaun Kelsey 0:da5f5b56060a 714 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 715 }
Shaun Kelsey 0:da5f5b56060a 716
Shaun Kelsey 0:da5f5b56060a 717 void SSInterface::irq_handler_selftest(){
Shaun Kelsey 0:da5f5b56060a 718 mfio_int_happened = true;
Shaun Kelsey 0:da5f5b56060a 719 }
Shaun Kelsey 0:da5f5b56060a 720
Shaun Kelsey 0:da5f5b56060a 721 bool SSInterface::reset_mfio_irq(){
Shaun Kelsey 0:da5f5b56060a 722 bool ret = mfio_int_happened;
Shaun Kelsey 0:da5f5b56060a 723 mfio_int_happened = false;
Shaun Kelsey 0:da5f5b56060a 724 irq_pin.disable_irq();
Shaun Kelsey 0:da5f5b56060a 725 irq_pin.fall(callback(this, &SSInterface::irq_handler));
Shaun Kelsey 0:da5f5b56060a 726 irq_pin.enable_irq();
Shaun Kelsey 0:da5f5b56060a 727 return ret;
Shaun Kelsey 0:da5f5b56060a 728 }