Andrew Duggan | 052556f | 2014-04-16 11:32:30 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 Andrew Duggan |
| 3 | * Copyright (C) 2014 Synaptics Inc |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 18 | #include <stdio.h> |
| 19 | #include <sys/types.h> |
| 20 | #include <sys/stat.h> |
| 21 | #include <fcntl.h> |
| 22 | #include <errno.h> |
| 23 | #include <string.h> |
| 24 | #include <unistd.h> |
| 25 | #include <sys/ioctl.h> |
| 26 | #include <sys/select.h> |
| 27 | |
| 28 | #include <linux/types.h> |
| 29 | #include <linux/input.h> |
| 30 | #include <linux/hidraw.h> |
| 31 | #include <signal.h> |
| 32 | #include <stdlib.h> |
| 33 | |
| 34 | #include "hiddevice.h" |
| 35 | |
| 36 | #define RMI_WRITE_REPORT_ID 0x9 // Output Report |
| 37 | #define RMI_READ_ADDR_REPORT_ID 0xa // Output Report |
| 38 | #define RMI_READ_DATA_REPORT_ID 0xb // Input Report |
| 39 | #define RMI_ATTN_REPORT_ID 0xc // Input Report |
| 40 | #define RMI_SET_RMI_MODE_REPORT_ID 0xf // Feature Report |
| 41 | |
| 42 | enum rmi_hid_mode_type { |
| 43 | HID_RMI4_MODE_MOUSE = 0, |
| 44 | HID_RMI4_MODE_ATTN_REPORTS = 1, |
| 45 | HID_RMI4_MODE_NO_PACKED_ATTN_REPORTS = 2, |
| 46 | }; |
| 47 | |
Andrew Duggan | 8b77439 | 2014-06-18 13:11:49 -0700 | [diff] [blame] | 48 | enum hid_report_type { |
| 49 | HID_REPORT_TYPE_UNKNOWN = 0x0, |
| 50 | HID_REPORT_TYPE_INPUT = 0x81, |
| 51 | HID_REPORT_TYPE_OUTPUT = 0x91, |
| 52 | HID_REPORT_TYPE_FEATURE = 0xb1, |
| 53 | }; |
| 54 | |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 55 | #define HID_RMI4_REPORT_ID 0 |
| 56 | #define HID_RMI4_READ_INPUT_COUNT 1 |
| 57 | #define HID_RMI4_READ_INPUT_DATA 2 |
| 58 | #define HID_RMI4_READ_OUTPUT_ADDR 2 |
| 59 | #define HID_RMI4_READ_OUTPUT_COUNT 4 |
| 60 | #define HID_RMI4_WRITE_OUTPUT_COUNT 1 |
| 61 | #define HID_RMI4_WRITE_OUTPUT_ADDR 2 |
| 62 | #define HID_RMI4_WRITE_OUTPUT_DATA 4 |
| 63 | #define HID_RMI4_FEATURE_MODE 1 |
| 64 | #define HID_RMI4_ATTN_INTERUPT_SOURCES 1 |
| 65 | #define HID_RMI4_ATTN_DATA 2 |
| 66 | |
Andrew Duggan | fa10fc8 | 2014-07-07 17:36:33 -0700 | [diff] [blame] | 67 | #define SYNAPTICS_VENDOR_ID 0x06cb |
| 68 | |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 69 | int HIDDevice::Open(const char * filename) |
| 70 | { |
| 71 | int rc; |
| 72 | int desc_size; |
| 73 | |
Andrew Duggan | 7216358 | 2014-04-03 16:25:12 -0700 | [diff] [blame] | 74 | if (!filename) |
| 75 | return -EINVAL; |
| 76 | |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 77 | m_fd = open(filename, O_RDWR); |
| 78 | if (m_fd < 0) |
| 79 | return -1; |
| 80 | |
| 81 | memset(&m_rptDesc, 0, sizeof(m_rptDesc)); |
| 82 | memset(&m_info, 0, sizeof(m_info)); |
| 83 | |
| 84 | rc = ioctl(m_fd, HIDIOCGRDESCSIZE, &desc_size); |
| 85 | if (rc < 0) |
| 86 | return rc; |
| 87 | |
| 88 | m_rptDesc.size = desc_size; |
| 89 | rc = ioctl(m_fd, HIDIOCGRDESC, &m_rptDesc); |
| 90 | if (rc < 0) |
| 91 | return rc; |
| 92 | |
| 93 | rc = ioctl(m_fd, HIDIOCGRAWINFO, &m_info); |
| 94 | if (rc < 0) |
| 95 | return rc; |
| 96 | |
Andrew Duggan | fa10fc8 | 2014-07-07 17:36:33 -0700 | [diff] [blame] | 97 | if (m_info.vendor != SYNAPTICS_VENDOR_ID) { |
| 98 | errno = -ENODEV; |
| 99 | return -1; |
| 100 | } |
| 101 | |
Andrew Duggan | 8b77439 | 2014-06-18 13:11:49 -0700 | [diff] [blame] | 102 | ParseReportSizes(); |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 103 | |
| 104 | m_inputReport = new unsigned char[m_inputReportSize](); |
Andrew Duggan | fa10fc8 | 2014-07-07 17:36:33 -0700 | [diff] [blame] | 105 | if (!m_inputReport) { |
| 106 | errno = -ENOMEM; |
| 107 | return -1; |
| 108 | } |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 109 | |
| 110 | m_outputReport = new unsigned char[m_outputReportSize](); |
Andrew Duggan | fa10fc8 | 2014-07-07 17:36:33 -0700 | [diff] [blame] | 111 | if (!m_outputReport) { |
| 112 | errno = -ENOMEM; |
| 113 | return -1; |
| 114 | } |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 115 | |
| 116 | m_readData = new unsigned char[m_inputReportSize](); |
Andrew Duggan | fa10fc8 | 2014-07-07 17:36:33 -0700 | [diff] [blame] | 117 | if (!m_readData) { |
| 118 | errno = -ENOMEM; |
| 119 | return -1; |
| 120 | } |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 121 | |
| 122 | m_attnReportQueue = new unsigned char[m_inputReportSize * HID_REPORT_QUEUE_MAX_SIZE](); |
Andrew Duggan | fa10fc8 | 2014-07-07 17:36:33 -0700 | [diff] [blame] | 123 | if (!m_attnReportQueue) { |
| 124 | errno = -ENOMEM; |
| 125 | return -1; |
| 126 | } |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 127 | |
| 128 | m_deviceOpen = true; |
| 129 | |
| 130 | rc = SetMode(HID_RMI4_MODE_ATTN_REPORTS); |
| 131 | if (rc) |
| 132 | return -1; |
| 133 | |
| 134 | return 0; |
| 135 | } |
| 136 | |
Andrew Duggan | 8b77439 | 2014-06-18 13:11:49 -0700 | [diff] [blame] | 137 | void HIDDevice::ParseReportSizes() |
| 138 | { |
| 139 | bool isVendorSpecific = false; |
| 140 | bool isReport = false; |
| 141 | int totalReportSize = 0; |
| 142 | int reportSize = 0; |
| 143 | int reportCount = 0; |
| 144 | enum hid_report_type hidReportType = HID_REPORT_TYPE_UNKNOWN; |
| 145 | |
| 146 | for (unsigned int i = 0; i < m_rptDesc.size; ++i) { |
| 147 | if (isVendorSpecific) { |
| 148 | if (m_rptDesc.value[i] == 0x85 || m_rptDesc.value[i] == 0xc0) { |
| 149 | if (isReport) { |
| 150 | // finish up data on the previous report |
| 151 | totalReportSize = (reportSize * reportCount) >> 3; |
| 152 | |
| 153 | switch (hidReportType) { |
| 154 | case HID_REPORT_TYPE_INPUT: |
| 155 | m_inputReportSize = totalReportSize + 1; |
| 156 | break; |
| 157 | case HID_REPORT_TYPE_OUTPUT: |
| 158 | m_outputReportSize = totalReportSize + 1; |
| 159 | break; |
| 160 | case HID_REPORT_TYPE_FEATURE: |
| 161 | m_featureReportSize = totalReportSize + 1; |
| 162 | break; |
| 163 | case HID_REPORT_TYPE_UNKNOWN: |
| 164 | default: |
| 165 | break; |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | // reset values for the new report |
| 170 | totalReportSize = 0; |
| 171 | reportSize = 0; |
| 172 | reportCount = 0; |
| 173 | hidReportType = HID_REPORT_TYPE_UNKNOWN; |
| 174 | |
| 175 | if (m_rptDesc.value[i] == 0x85) |
| 176 | isReport = true; |
| 177 | else |
| 178 | isReport = false; |
| 179 | |
| 180 | if (m_rptDesc.value[i] == 0xc0) |
| 181 | isVendorSpecific = false; |
| 182 | } |
| 183 | |
| 184 | if (isReport) { |
| 185 | if (m_rptDesc.value[i] == 0x75) { |
| 186 | reportSize = m_rptDesc.value[++i]; |
| 187 | continue; |
| 188 | } |
| 189 | |
| 190 | if (m_rptDesc.value[i] == 0x95) { |
| 191 | reportCount = m_rptDesc.value[++i]; |
| 192 | continue; |
| 193 | } |
| 194 | |
| 195 | if (m_rptDesc.value[i] == HID_REPORT_TYPE_INPUT) |
| 196 | hidReportType = HID_REPORT_TYPE_INPUT; |
| 197 | |
| 198 | if (m_rptDesc.value[i] == HID_REPORT_TYPE_OUTPUT) |
| 199 | hidReportType = HID_REPORT_TYPE_OUTPUT; |
| 200 | |
| 201 | if (m_rptDesc.value[i] == HID_REPORT_TYPE_FEATURE) { |
| 202 | hidReportType = HID_REPORT_TYPE_FEATURE; |
| 203 | } |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | if (m_rptDesc.value[i] == 0x06 && m_rptDesc.value[i + 1] == 0x00 |
| 208 | && m_rptDesc.value[i + 2] == 0xFF) { |
| 209 | isVendorSpecific = true; |
| 210 | i += 2; |
| 211 | } |
| 212 | } |
| 213 | } |
| 214 | |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 215 | int HIDDevice::Read(unsigned short addr, unsigned char *buf, unsigned short len) |
| 216 | { |
Andrew Duggan | 64d6e59 | 2014-07-01 13:02:10 -0700 | [diff] [blame] | 217 | ssize_t count; |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 218 | size_t bytesReadPerRequest; |
| 219 | size_t bytesInDataReport; |
| 220 | size_t totalBytesRead; |
| 221 | size_t bytesPerRequest; |
| 222 | size_t bytesWritten; |
| 223 | size_t bytesToRequest; |
| 224 | int rc; |
| 225 | |
| 226 | if (!m_deviceOpen) |
| 227 | return -1; |
| 228 | |
| 229 | if (m_bytesPerReadRequest) |
| 230 | bytesPerRequest = m_bytesPerReadRequest; |
| 231 | else |
| 232 | bytesPerRequest = len; |
| 233 | |
| 234 | for (totalBytesRead = 0; totalBytesRead < len; totalBytesRead += bytesReadPerRequest) { |
| 235 | count = 0; |
| 236 | if ((len - totalBytesRead) < bytesPerRequest) |
| 237 | bytesToRequest = len % bytesPerRequest; |
| 238 | else |
| 239 | bytesToRequest = bytesPerRequest; |
| 240 | |
| 241 | m_outputReport[HID_RMI4_REPORT_ID] = RMI_READ_ADDR_REPORT_ID; |
| 242 | m_outputReport[1] = 0; /* old 1 byte read count */ |
| 243 | m_outputReport[HID_RMI4_READ_OUTPUT_ADDR] = addr & 0xFF; |
| 244 | m_outputReport[HID_RMI4_READ_OUTPUT_ADDR + 1] = (addr >> 8) & 0xFF; |
| 245 | m_outputReport[HID_RMI4_READ_OUTPUT_COUNT] = bytesToRequest & 0xFF; |
| 246 | m_outputReport[HID_RMI4_READ_OUTPUT_COUNT + 1] = (bytesToRequest >> 8) & 0xFF; |
| 247 | |
| 248 | m_dataBytesRead = 0; |
| 249 | |
| 250 | for (bytesWritten = 0; bytesWritten < m_outputReportSize; bytesWritten += count) { |
| 251 | m_bCancel = false; |
| 252 | count = write(m_fd, m_outputReport + bytesWritten, |
| 253 | m_outputReportSize - bytesWritten); |
| 254 | if (count < 0) { |
| 255 | if (errno == EINTR && m_deviceOpen && !m_bCancel) |
| 256 | continue; |
| 257 | else |
| 258 | return count; |
| 259 | } |
| 260 | break; |
| 261 | } |
| 262 | |
| 263 | bytesReadPerRequest = 0; |
| 264 | while (bytesReadPerRequest < bytesToRequest) { |
| 265 | rc = GetReport(RMI_READ_DATA_REPORT_ID); |
| 266 | if (rc > 0) { |
| 267 | bytesInDataReport = m_readData[HID_RMI4_READ_INPUT_COUNT]; |
| 268 | memcpy(buf + bytesReadPerRequest, &m_readData[HID_RMI4_READ_INPUT_DATA], |
| 269 | bytesInDataReport); |
| 270 | bytesReadPerRequest += bytesInDataReport; |
| 271 | m_dataBytesRead = 0; |
| 272 | } |
| 273 | } |
| 274 | addr += bytesPerRequest; |
| 275 | } |
| 276 | |
| 277 | return totalBytesRead; |
| 278 | } |
| 279 | |
| 280 | int HIDDevice::Write(unsigned short addr, const unsigned char *buf, unsigned short len) |
| 281 | { |
Andrew Duggan | 64d6e59 | 2014-07-01 13:02:10 -0700 | [diff] [blame] | 282 | ssize_t count; |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 283 | |
| 284 | if (!m_deviceOpen) |
| 285 | return -1; |
| 286 | |
| 287 | m_outputReport[HID_RMI4_REPORT_ID] = RMI_WRITE_REPORT_ID; |
| 288 | m_outputReport[HID_RMI4_WRITE_OUTPUT_COUNT] = len; |
| 289 | m_outputReport[HID_RMI4_WRITE_OUTPUT_ADDR] = addr & 0xFF; |
| 290 | m_outputReport[HID_RMI4_WRITE_OUTPUT_ADDR + 1] = (addr >> 8) & 0xFF; |
| 291 | memcpy(&m_outputReport[HID_RMI4_WRITE_OUTPUT_DATA], buf, len); |
| 292 | |
| 293 | for (;;) { |
| 294 | m_bCancel = false; |
| 295 | count = write(m_fd, m_outputReport, m_outputReportSize); |
| 296 | if (count < 0) { |
| 297 | if (errno == EINTR && m_deviceOpen && !m_bCancel) |
| 298 | continue; |
| 299 | else |
| 300 | return count; |
| 301 | } |
| 302 | return count; |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | int HIDDevice::SetMode(int mode) |
| 307 | { |
| 308 | int rc; |
| 309 | char buf[2]; |
| 310 | |
| 311 | if (!m_deviceOpen) |
| 312 | return -1; |
| 313 | |
| 314 | buf[0] = 0xF; |
| 315 | buf[1] = mode; |
| 316 | rc = ioctl(m_fd, HIDIOCSFEATURE(2), buf); |
| 317 | if (rc < 0) { |
| 318 | perror("HIDIOCSFEATURE"); |
| 319 | return rc; |
| 320 | } |
| 321 | |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | void HIDDevice::Close() |
| 326 | { |
| 327 | if (!m_deviceOpen) |
| 328 | return; |
| 329 | |
| 330 | SetMode(HID_RMI4_MODE_MOUSE); |
| 331 | m_deviceOpen = false; |
| 332 | close(m_fd); |
| 333 | m_fd = -1; |
| 334 | |
| 335 | delete[] m_inputReport; |
| 336 | m_inputReport = NULL; |
| 337 | delete[] m_outputReport; |
| 338 | m_outputReport = NULL; |
| 339 | delete[] m_readData; |
| 340 | m_readData = NULL; |
| 341 | delete[] m_attnReportQueue; |
| 342 | m_attnReportQueue = NULL; |
| 343 | } |
| 344 | |
| 345 | int HIDDevice::WaitForAttention(struct timeval * timeout, int *sources) |
| 346 | { |
| 347 | return GetAttentionReport(timeout, sources, NULL, NULL); |
| 348 | } |
| 349 | |
Andrew Duggan | e9a5cd0 | 2014-04-29 13:34:42 -0700 | [diff] [blame] | 350 | int HIDDevice::GetAttentionReport(struct timeval * timeout, int *sources, unsigned char *buf, unsigned int *len) |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 351 | { |
| 352 | int rc; |
| 353 | int interrupt_sources; |
| 354 | const unsigned char * queue_report; |
| 355 | int bytes = m_inputReportSize; |
| 356 | |
Andrew Duggan | e9a5cd0 | 2014-04-29 13:34:42 -0700 | [diff] [blame] | 357 | if (len && m_inputReportSize < *len) { |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 358 | bytes = *len; |
| 359 | *len = m_inputReportSize; |
| 360 | } |
| 361 | |
| 362 | rc = GetReport(RMI_ATTN_REPORT_ID, timeout); |
| 363 | if (rc > 0) { |
| 364 | queue_report = m_attnReportQueue |
| 365 | + m_inputReportSize * m_tailIdx; |
| 366 | interrupt_sources = queue_report[HID_RMI4_ATTN_INTERUPT_SOURCES]; |
| 367 | if (buf) |
| 368 | memcpy(buf, queue_report, bytes); |
| 369 | m_tailIdx = (m_tailIdx + 1) & (HID_REPORT_QUEUE_MAX_SIZE - 1); |
| 370 | --m_attnQueueCount; |
| 371 | if (sources) |
| 372 | *sources = interrupt_sources; |
| 373 | return rc; |
| 374 | } |
| 375 | |
| 376 | return rc; |
| 377 | } |
| 378 | |
| 379 | int HIDDevice::GetReport(int reportid, struct timeval * timeout) |
| 380 | { |
Andrew Duggan | 64d6e59 | 2014-07-01 13:02:10 -0700 | [diff] [blame] | 381 | ssize_t count = 0; |
Andrew Duggan | 4e81125 | 2014-04-03 15:17:57 -0700 | [diff] [blame] | 382 | unsigned char *queue_report; |
| 383 | fd_set fds; |
| 384 | int rc; |
| 385 | int report_count = 0; |
| 386 | |
| 387 | if (!m_deviceOpen) |
| 388 | return -1; |
| 389 | |
| 390 | for (;;) { |
| 391 | FD_ZERO(&fds); |
| 392 | FD_SET(m_fd, &fds); |
| 393 | |
| 394 | rc = select(m_fd + 1, &fds, NULL, NULL, timeout); |
| 395 | if (rc == 0) { |
| 396 | return -ETIMEDOUT; |
| 397 | } else if (rc < 0) { |
| 398 | if (errno == EINTR && m_deviceOpen && !m_bCancel) |
| 399 | continue; |
| 400 | else |
| 401 | return rc; |
| 402 | } else if (rc > 0 && FD_ISSET(m_fd, &fds)) { |
| 403 | size_t offset = 0; |
| 404 | for (;;) { |
| 405 | m_bCancel = false; |
| 406 | count = read(m_fd, m_inputReport + offset, m_inputReportSize - offset); |
| 407 | if (count < 0) { |
| 408 | if (errno == EINTR && m_deviceOpen && !m_bCancel) |
| 409 | continue; |
| 410 | else |
| 411 | return count; |
| 412 | } |
| 413 | offset += count; |
| 414 | if (offset == m_inputReportSize) |
| 415 | break; |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | if (m_inputReport[HID_RMI4_REPORT_ID] == RMI_ATTN_REPORT_ID) { |
| 420 | queue_report = m_attnReportQueue |
| 421 | + m_inputReportSize * m_headIdx; |
| 422 | memcpy(queue_report, m_inputReport, count); |
| 423 | m_headIdx = (m_headIdx + 1) & (HID_REPORT_QUEUE_MAX_SIZE - 1); |
| 424 | ++m_attnQueueCount; |
| 425 | } else if (m_inputReport[HID_RMI4_REPORT_ID] == RMI_READ_DATA_REPORT_ID) { |
| 426 | memcpy(m_readData, m_inputReport, count); |
| 427 | m_dataBytesRead = count; |
| 428 | } |
| 429 | ++report_count; |
| 430 | |
| 431 | if (m_inputReport[HID_RMI4_REPORT_ID] == reportid) |
| 432 | break; |
| 433 | } |
| 434 | return report_count; |
| 435 | } |
| 436 | |
| 437 | void HIDDevice::PrintReport(const unsigned char *report) |
| 438 | { |
| 439 | int i; |
| 440 | int len = 0; |
| 441 | const unsigned char * data; |
| 442 | int addr = 0; |
| 443 | |
| 444 | switch (report[HID_RMI4_REPORT_ID]) { |
| 445 | case RMI_WRITE_REPORT_ID: |
| 446 | len = report[HID_RMI4_WRITE_OUTPUT_COUNT]; |
| 447 | data = &report[HID_RMI4_WRITE_OUTPUT_DATA]; |
| 448 | addr = (report[HID_RMI4_WRITE_OUTPUT_ADDR] & 0xFF) |
| 449 | | ((report[HID_RMI4_WRITE_OUTPUT_ADDR + 1] & 0xFF) << 8); |
| 450 | fprintf(stdout, "Write Report:\n"); |
| 451 | fprintf(stdout, "Address = 0x%02X\n", addr); |
| 452 | fprintf(stdout, "Length = 0x%02X\n", len); |
| 453 | break; |
| 454 | case RMI_READ_ADDR_REPORT_ID: |
| 455 | addr = (report[HID_RMI4_READ_OUTPUT_ADDR] & 0xFF) |
| 456 | | ((report[HID_RMI4_READ_OUTPUT_ADDR + 1] & 0xFF) << 8); |
| 457 | len = (report[HID_RMI4_READ_OUTPUT_COUNT] & 0xFF) |
| 458 | | ((report[HID_RMI4_READ_OUTPUT_COUNT + 1] & 0xFF) << 8); |
| 459 | fprintf(stdout, "Read Request (Output Report):\n"); |
| 460 | fprintf(stdout, "Address = 0x%02X\n", addr); |
| 461 | fprintf(stdout, "Length = 0x%02X\n", len); |
| 462 | return; |
| 463 | break; |
| 464 | case RMI_READ_DATA_REPORT_ID: |
| 465 | len = report[HID_RMI4_READ_INPUT_COUNT]; |
| 466 | data = &report[HID_RMI4_READ_INPUT_DATA]; |
| 467 | fprintf(stdout, "Read Data Report:\n"); |
| 468 | fprintf(stdout, "Length = 0x%02X\n", len); |
| 469 | break; |
| 470 | case RMI_ATTN_REPORT_ID: |
| 471 | fprintf(stdout, "Attention Report:\n"); |
| 472 | len = 28; |
| 473 | data = &report[HID_RMI4_ATTN_DATA]; |
| 474 | fprintf(stdout, "Interrupt Sources: 0x%02X\n", |
| 475 | report[HID_RMI4_ATTN_INTERUPT_SOURCES]); |
| 476 | break; |
| 477 | default: |
| 478 | fprintf(stderr, "Unknown Report: ID 0x%02x\n", report[HID_RMI4_REPORT_ID]); |
| 479 | return; |
| 480 | } |
| 481 | |
| 482 | fprintf(stdout, "Data:\n"); |
| 483 | for (i = 0; i < len; ++i) { |
| 484 | fprintf(stdout, "0x%02X ", data[i]); |
| 485 | if (i % 8 == 7) { |
| 486 | fprintf(stdout, "\n"); |
| 487 | } |
| 488 | } |
| 489 | fprintf(stdout, "\n\n"); |
Andrew Duggan | 64d6e59 | 2014-07-01 13:02:10 -0700 | [diff] [blame] | 490 | } |