| 1 | /* |
| 2 | * This file is part of the libCEC(R) library. |
| 3 | * |
| 4 | * libCEC Exynos Code is Copyright (C) 2014 Valentin Manea |
| 5 | * libCEC(R) is Copyright (C) 2011-2013 Pulse-Eight Limited. All rights reserved. |
| 6 | * libCEC(R) is an original work, containing original code. |
| 7 | * |
| 8 | * libCEC(R) is a trademark of Pulse-Eight Limited. |
| 9 | * |
| 10 | * This program is dual-licensed; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 23 | * |
| 24 | * |
| 25 | * Alternatively, you can license this library under a commercial license, |
| 26 | * please contact Pulse-Eight Licensing for more information. |
| 27 | * |
| 28 | * For more information contact: |
| 29 | * Pulse-Eight Licensing <license@pulse-eight.com> |
| 30 | * http://www.pulse-eight.com/ |
| 31 | * http://www.pulse-eight.net/ |
| 32 | */ |
| 33 | |
| 34 | #include "env.h" |
| 35 | #include <fcntl.h> |
| 36 | #include <sys/ioctl.h> |
| 37 | |
| 38 | |
| 39 | #if defined(HAVE_EXYNOS_API) |
| 40 | #include "ExynosCEC.h" |
| 41 | #include "ExynosCECAdapterCommunication.h" |
| 42 | |
| 43 | #include "lib/CECTypeUtils.h" |
| 44 | #include "lib/LibCEC.h" |
| 45 | #include "lib/platform/util/StdString.h" |
| 46 | #include "lib/platform/util/buffer.h" |
| 47 | |
| 48 | using namespace std; |
| 49 | using namespace CEC; |
| 50 | using namespace PLATFORM; |
| 51 | |
| 52 | #define LIB_CEC m_callback->GetLib() |
| 53 | |
| 54 | |
| 55 | CExynosCECAdapterCommunication::CExynosCECAdapterCommunication(IAdapterCommunicationCallback *callback) : |
| 56 | IAdapterCommunication(callback), |
| 57 | m_bLogicalAddressChanged(false) |
| 58 | { |
| 59 | CLockObject lock(m_mutex); |
| 60 | |
| 61 | m_logicalAddresses.Clear(); |
| 62 | m_fd = INVALID_SOCKET_VALUE; |
| 63 | } |
| 64 | |
| 65 | |
| 66 | CExynosCECAdapterCommunication::~CExynosCECAdapterCommunication(void) |
| 67 | { |
| 68 | Close(); |
| 69 | } |
| 70 | |
| 71 | |
| 72 | bool CExynosCECAdapterCommunication::IsOpen(void) |
| 73 | { |
| 74 | return IsInitialised() && m_fd != INVALID_SOCKET_VALUE; |
| 75 | } |
| 76 | |
| 77 | |
| 78 | bool CExynosCECAdapterCommunication::Open(uint32_t UNUSED(iTimeoutMs), bool UNUSED(bSkipChecks), bool bStartListening) |
| 79 | { |
| 80 | if (m_fd != INVALID_SOCKET_VALUE) |
| 81 | close(m_fd); |
| 82 | |
| 83 | if ((m_fd = open(CEC_EXYNOS_PATH, O_RDWR)) > 0) |
| 84 | { |
| 85 | if (!bStartListening || CreateThread()) { |
| 86 | return true; |
| 87 | } |
| 88 | close(m_fd); |
| 89 | } |
| 90 | return false; |
| 91 | } |
| 92 | |
| 93 | |
| 94 | void CExynosCECAdapterCommunication::Close(void) |
| 95 | { |
| 96 | StopThread(0); |
| 97 | |
| 98 | close(m_fd); |
| 99 | m_fd = INVALID_SOCKET_VALUE; |
| 100 | } |
| 101 | |
| 102 | |
| 103 | std::string CExynosCECAdapterCommunication::GetError(void) const |
| 104 | { |
| 105 | std::string strError(m_strError); |
| 106 | return strError; |
| 107 | } |
| 108 | |
| 109 | |
| 110 | cec_adapter_message_state CExynosCECAdapterCommunication::Write( |
| 111 | const cec_command &data, bool &UNUSED(bRetry), uint8_t UNUSED(iLineTimeout), bool UNUSED(bIsReply)) |
| 112 | { |
| 113 | uint8_t buffer[CEC_MAX_FRAME_SIZE]; |
| 114 | int32_t size = 1; |
| 115 | cec_adapter_message_state rc = ADAPTER_MESSAGE_STATE_ERROR; |
| 116 | |
| 117 | if (!IsOpen()) |
| 118 | return rc; |
| 119 | |
| 120 | if ((size_t)data.parameters.size + data.opcode_set > sizeof(buffer)) |
| 121 | { |
| 122 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s: data size too large !", __func__); |
| 123 | return ADAPTER_MESSAGE_STATE_ERROR; |
| 124 | } |
| 125 | |
| 126 | buffer[0] = (data.initiator << 4) | (data.destination & 0x0f); |
| 127 | |
| 128 | if (data.opcode_set) |
| 129 | { |
| 130 | buffer[1] = data.opcode; |
| 131 | size++; |
| 132 | |
| 133 | memcpy(&buffer[size], data.parameters.data, data.parameters.size); |
| 134 | size += data.parameters.size; |
| 135 | } |
| 136 | |
| 137 | if (write(m_fd, (void *)buffer, size) == size) |
| 138 | { |
| 139 | rc = ADAPTER_MESSAGE_STATE_SENT_ACKED; |
| 140 | } |
| 141 | else |
| 142 | { |
| 143 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s: write failed !", __func__); |
| 144 | } |
| 145 | |
| 146 | return rc; |
| 147 | } |
| 148 | |
| 149 | |
| 150 | uint16_t CExynosCECAdapterCommunication::GetFirmwareVersion(void) |
| 151 | { |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | |
| 156 | cec_vendor_id CExynosCECAdapterCommunication::GetVendorId(void) |
| 157 | { |
| 158 | return cec_vendor_id(CEC_VENDOR_SAMSUNG); |
| 159 | } |
| 160 | |
| 161 | |
| 162 | uint16_t CExynosCECAdapterCommunication::GetPhysicalAddress(void) |
| 163 | { |
| 164 | uint16_t phys_addr = CEC_DEFAULT_PADDR; |
| 165 | |
| 166 | FILE *f = fopen(CEC_PADDR_NAME, "r"); |
| 167 | if(f) { |
| 168 | if(fscanf(f, "%hu", &phys_addr) != 1) |
| 169 | phys_addr = CEC_DEFAULT_PADDR; |
| 170 | |
| 171 | fclose(f); |
| 172 | } |
| 173 | return phys_addr; |
| 174 | } |
| 175 | |
| 176 | |
| 177 | cec_logical_addresses CExynosCECAdapterCommunication::GetLogicalAddresses(void) |
| 178 | { |
| 179 | return m_logicalAddresses; |
| 180 | } |
| 181 | |
| 182 | |
| 183 | bool CExynosCECAdapterCommunication::SetLogicalAddresses(const cec_logical_addresses &addresses) |
| 184 | { |
| 185 | unsigned int log_addr = addresses.primary; |
| 186 | CLockObject lock(m_mutex); |
| 187 | |
| 188 | if (!IsOpen()) |
| 189 | return false; |
| 190 | |
| 191 | if (ioctl(m_fd, CEC_IOC_SETLADDR, &log_addr)) |
| 192 | { |
| 193 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s: IOCTL SetLogicalAddr failed !", __func__); |
| 194 | return false; |
| 195 | } |
| 196 | m_logicalAddresses = addresses; |
| 197 | m_bLogicalAddressChanged = true; |
| 198 | |
| 199 | return true; |
| 200 | } |
| 201 | |
| 202 | |
| 203 | void CExynosCECAdapterCommunication::HandleLogicalAddressLost(cec_logical_address UNUSED(oldAddress)) |
| 204 | { |
| 205 | unsigned int log_addr = CECDEVICE_BROADCAST; |
| 206 | if (ioctl(m_fd, CEC_IOC_SETLADDR, &log_addr)) |
| 207 | { |
| 208 | LIB_CEC->AddLog(CEC_LOG_ERROR, "%s: IOCTL SetLogicalAddr failed !", __func__); |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | |
| 213 | void *CExynosCECAdapterCommunication::Process(void) |
| 214 | { |
| 215 | uint8_t buffer[CEC_MAX_FRAME_SIZE]; |
| 216 | uint32_t size; |
| 217 | fd_set rfds; |
| 218 | cec_logical_address initiator, destination; |
| 219 | |
| 220 | if (!IsOpen()) |
| 221 | return 0; |
| 222 | |
| 223 | FD_ZERO(&rfds); |
| 224 | FD_SET(m_fd, &rfds); |
| 225 | |
| 226 | while (!IsStopped()) |
| 227 | { |
| 228 | if (select(m_fd + 1, &rfds, NULL, NULL, NULL) >= 0 ) |
| 229 | { |
| 230 | size = read(m_fd, buffer, CEC_MAX_FRAME_SIZE); |
| 231 | |
| 232 | if (size > 0) |
| 233 | { |
| 234 | initiator = cec_logical_address(buffer[0] >> 4); |
| 235 | destination = cec_logical_address(buffer[0] & 0x0f); |
| 236 | |
| 237 | cec_command cmd; |
| 238 | |
| 239 | cec_command::Format( |
| 240 | cmd, initiator, destination, |
| 241 | ( size > 1 ) ? cec_opcode(buffer[1]) : CEC_OPCODE_NONE); |
| 242 | |
| 243 | for( uint8_t i = 2; i < size; i++ ) |
| 244 | cmd.parameters.PushBack(buffer[i]); |
| 245 | |
| 246 | if (!IsStopped()) |
| 247 | m_callback->OnCommandReceived(cmd); |
| 248 | } |
| 249 | } |
| 250 | |
| 251 | } |
| 252 | |
| 253 | return 0; |
| 254 | } |
| 255 | |
| 256 | #endif // HAVE_EXYNOS_API |