1 /* 2 * Copyright 2004-2008, François Revol, <revol@free.fr>. 3 * Distributed under the terms of the MIT License. 4 */ 5 6 #include "NW80xCamDevice.h" 7 #include "CamDebug.h" 8 #include "CamSensor.h" 9 10 // reference drivers: 11 // http://nw802.cvs.sourceforge.net 12 // http://nw802.cvs.sourceforge.net/nw802/nw802-2.4/ 13 // http://www.medias.ne.jp/~takam/bsd/NetBSD.html#nw802 14 // https://dev.openwrt.org/attachment/ticket/2319/nw802-patch.txt 15 // win binary driver template, readme has interesting info: 16 // http://www.bulgar-bg.com/Downloads/drivers/PCAMDriver/ 17 // http://www.bulgar-bg.com/Downloads/drivers/PCAMDriver/Readme.txt 18 19 const usb_webcam_support_descriptor kSupportedDevices[] = { 20 {{ 0, 0, 0, 0x046d, 0xd001 }, "Logitech", "QuickCam Pro", "??" }, // Alan's 21 // other IDs according to nw802 linux driver: 22 {{ 0, 0, 0, 0x052b, 0xd001 }, "Ezonics", "EZCam Pro", "??" }, 23 {{ 0, 0, 0, 0x055f, 0xd001 }, "Mustek"/*"PCLine"*/, "WCam 300"/*"PCL-W300"*/, "??" }, 24 {{ 0, 0, 0, 0x06a5, 0xd001 }, "Divio", "NW802", "??" }, 25 {{ 0, 0, 0, 0x06a5, 0x0000 }, "Divio", "NW800", "??" }, 26 {{ 0, 0, 0, 0, 0}, NULL, NULL, NULL } 27 }; 28 29 30 // TODO: Complete implementation! 31 32 // datasheets: (scarce) 33 // http://www.digchip.com/datasheets/parts/datasheet/132/NW800.php 34 // http://www.digchip.com/datasheets/parts/datasheet/132/NW802.php 35 // http://web.archive.org/web/*/divio.com/* 36 // http://web.archive.org/web/20020217173519/divio.com/NW802.html 37 // 38 // supported sensors: 39 // Sensor Model # Data Width Voltage Timing 40 // Conexant CN0352 10 bits 3.3 V Master 41 // Elecvision EVS110K 8 bits 3.3 V Slave 42 // HP (Agilent) HDC1000 10 bits 3.3 V Master 43 // Hyundai HB7121B 8 bits 3.3 V Master 44 // Pixart PAS006AC 9 bits 3.3 V Master 45 // TASC TAS5110A 9 bits 3.8 V Slave 46 // 47 // http://www.wifi.com.ar/english/doc/webcam/ov511cameras.html says: 48 // 06a5 (Divio) d800 Etoms ET31X110 (A.K.A Divio NW800) 49 50 NW80xCamDevice::NW80xCamDevice(CamDeviceAddon &_addon, BUSBDevice* _device) 51 :CamDevice(_addon, _device) 52 { 53 status_t err; 54 55 // linux seems to infer this sets I2C controller to 8 or 16 bit mode... 56 // sensors will set to the mode they want when probing 57 SetIICBitsMode(8); 58 err = ProbeSensor(); 59 if (err < B_OK) { 60 // reset I2C mode to 8 bit as linux driver does 61 SetIICBitsMode(8); 62 // not much we can do anyway 63 } 64 65 fInitStatus = B_OK; 66 } 67 68 69 NW80xCamDevice::~NW80xCamDevice() 70 { 71 72 } 73 74 75 bool 76 NW80xCamDevice::SupportsBulk() 77 { 78 return true; 79 } 80 81 82 bool 83 NW80xCamDevice::SupportsIsochronous() 84 { 85 return true; 86 } 87 88 89 status_t 90 NW80xCamDevice::StartTransfer() 91 { 92 SetScale(1); 93 if (Sensor()) 94 SetVideoFrame(BRect(0, 0, Sensor()->MaxWidth()-1, Sensor()->MaxHeight()-1)); 95 96 //SetVideoFrame(BRect(0, 0, 320-1, 240-1)); 97 98 DumpRegs(); 99 #if 0 100 status_t err; 101 uint8 r; 102 103 err = ReadReg(SN9C102_CHIP_CTRL, &r, 1, true); 104 if (err < 0) 105 return err; 106 r |= 0x04; 107 err = WriteReg8(SN9C102_CHIP_CTRL, r); 108 if (err < 0) 109 return err; 110 #endif 111 return CamDevice::StartTransfer(); 112 } 113 114 115 status_t 116 NW80xCamDevice::StopTransfer() 117 { 118 status_t err; 119 DumpRegs(); 120 err = CamDevice::StopTransfer(); 121 #if 0 122 uint8 r; 123 124 // if (err < 0) 125 // return err; 126 err = ReadReg(SN9C102_CHIP_CTRL, &r, 1, true); 127 if (err < 0) 128 return err; 129 r &= ~0x04; 130 err = WriteReg8(SN9C102_CHIP_CTRL, r); 131 if (err < 0) 132 return err; 133 #endif 134 return err; 135 } 136 137 138 ssize_t 139 NW80xCamDevice::WriteReg(uint16 address, uint8 *data, size_t count) 140 { 141 PRINT((CH "(%u, @%p, %" B_PRIuSIZE ")" CT, address, data, count)); 142 return SendCommand(USB_REQTYPE_DEVICE_OUT, 0x04, address, 0, count, data); 143 } 144 145 146 ssize_t 147 NW80xCamDevice::ReadReg(uint16 address, uint8 *data, size_t count, bool cached) 148 { 149 PRINT((CH "(%u, @%p, %" B_PRIuSIZE ", %d)" CT, address, data, count, 150 cached)); 151 memset(data, 0xaa, count); // linux drivers do that without explaining why !? 152 return SendCommand(USB_REQTYPE_DEVICE_IN, 0x04, address, 0, count, data); 153 } 154 155 156 status_t 157 NW80xCamDevice::GetStatusIIC() 158 { 159 status_t err = B_ERROR; 160 uint8 status = 0; 161 // TODO: WRITEME 162 //dprintf(ID "i2c_status: error 0x%08lx, status = %02x\n", err, status); 163 if (err < 0) 164 return err; 165 return (status&0x08)?EIO:0; 166 } 167 168 169 status_t 170 NW80xCamDevice::WaitReadyIIC() 171 { 172 // TODO: WRITEME 173 return EBUSY; 174 } 175 176 177 ssize_t 178 NW80xCamDevice::WriteIIC(uint8 address, uint8 *data, size_t count) 179 { 180 size_t i; 181 uint8 buffer[0x23]; 182 if (count > 16) 183 return EINVAL; 184 memset(buffer, 0, sizeof(buffer)); 185 buffer[0x20] = Sensor() ? Sensor()->IICWriteAddress() : 0; 186 buffer[0x21] = count - 1; 187 buffer[0x22] = 0x01; 188 for (i = 0; i < count; i++) { 189 buffer[i] = address + i; 190 buffer[i+16] = data[i]; 191 } 192 return SendCommand(USB_REQTYPE_DEVICE_OUT, 0x04, STV_I2C_WRITE, 0, 0x23, buffer); 193 } 194 195 196 ssize_t 197 NW80xCamDevice::ReadIIC(uint8 address, uint8 *data) 198 { 199 return ReadIIC(address, data); 200 } 201 202 203 ssize_t 204 NW80xCamDevice::ReadIIC8(uint8 address, uint8 *data) 205 { 206 status_t err; 207 uint8 buffer[0x23]; 208 memset(buffer, 0, sizeof(buffer)); 209 buffer[0x20] = Sensor() ? Sensor()->IICReadAddress() : 0; 210 buffer[0x21] = 1 - 1; 211 buffer[0x22] = 0x03; 212 buffer[0] = address; 213 err = SendCommand(USB_REQTYPE_DEVICE_OUT, 0x04, STV_I2C_WRITE, 0, 0x23, buffer); 214 PRINT((CH ": SendCommand: %s" CT, strerror(err))); 215 if (err < B_OK) 216 return err; 217 218 buffer[0] = 0xaa; 219 err = SendCommand(USB_REQTYPE_DEVICE_IN, 0x04, STV_I2C_READ, 0, 0x1, buffer); 220 PRINT((CH ": SendCommand: %s" CT, strerror(err))); 221 if (err < B_OK) 222 return err; 223 224 *data = buffer[0]; 225 PRINT((CH ": 0x%02x" CT, *data)); 226 return 1; 227 } 228 229 230 ssize_t 231 NW80xCamDevice::ReadIIC16(uint8 address, uint16 *data) 232 { 233 status_t err; 234 uint8 buffer[0x23]; 235 memset(buffer, 0, sizeof(buffer)); 236 buffer[0x20] = Sensor() ? Sensor()->IICReadAddress() : 0; 237 buffer[0x21] = 1 - 1; 238 buffer[0x22] = 0x03; 239 buffer[0] = address; 240 err = SendCommand(USB_REQTYPE_DEVICE_OUT, 0x04, STV_I2C_WRITE, 0, 0x23, buffer); 241 if (err < B_OK) 242 return err; 243 244 buffer[0] = 0xaa; 245 buffer[1] = 0xaa; 246 err = SendCommand(USB_REQTYPE_DEVICE_IN, 0x04, STV_I2C_READ, 0, 0x2, buffer); 247 PRINT((CH ": SendCommand: %s" CT, strerror(err))); 248 if (err < B_OK) 249 return err; 250 251 if (fChipIsBigEndian) 252 *data = B_HOST_TO_BENDIAN_INT16(*(uint16 *)(&buffer[0])); 253 else 254 *data = B_HOST_TO_LENDIAN_INT16(*(uint16 *)(&buffer[0])); 255 PRINT((CH ": 0x%04x" CT, *data)); 256 return 2; 257 } 258 259 260 status_t 261 NW80xCamDevice::SetIICBitsMode(size_t bits) 262 { 263 switch (bits) { 264 case 8: 265 WriteReg8(STV_REG23, 0); 266 break; 267 case 16: 268 WriteReg8(STV_REG23, 1); 269 break; 270 default: 271 return EINVAL; 272 } 273 return B_OK; 274 } 275 276 277 status_t 278 NW80xCamDevice::SendCommand(uint8 dir, uint8 request, uint16 value, 279 uint16 index, uint16 length, void* data) 280 { 281 size_t ret; 282 if (!GetDevice()) 283 return ENODEV; 284 if (length > GetDevice()->MaxEndpoint0PacketSize()) 285 return EINVAL; 286 ret = GetDevice()->ControlTransfer( 287 USB_REQTYPE_VENDOR | dir, 288 request, value, index, length, data); 289 return ret; 290 } 291 292 293 NW80xCamDeviceAddon::NW80xCamDeviceAddon(WebCamMediaAddOn* webcam) 294 : CamDeviceAddon(webcam) 295 { 296 SetSupportedDevices(kSupportedDevices); 297 } 298 299 300 NW80xCamDeviceAddon::~NW80xCamDeviceAddon() 301 { 302 } 303 304 305 const char * 306 NW80xCamDeviceAddon::BrandName() 307 { 308 return "NW80x-based"; 309 } 310 311 312 NW80xCamDevice * 313 NW80xCamDeviceAddon::Instantiate(CamRoster &roster, BUSBDevice *from) 314 { 315 return new NW80xCamDevice(*this, from); 316 } 317 318 319 extern "C" status_t 320 B_WEBCAM_MKINTFUNC(nw80xcam) 321 (WebCamMediaAddOn* webcam, CamDeviceAddon **addon) 322 { 323 *addon = new NW80xCamDeviceAddon(webcam); 324 return B_OK; 325 } 326