diff options
Diffstat (limited to 'api/Xceive_XC4000.c')
| -rw-r--r-- | api/Xceive_XC4000.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/api/Xceive_XC4000.c b/api/Xceive_XC4000.c new file mode 100644 index 0000000..db77f25 --- /dev/null +++ b/api/Xceive_XC4000.c @@ -0,0 +1,213 @@ +/* + * @(#)Xceive_XC4000.cpp + * + * ========================================================== + * Version: 2.1 + * Date: 2009.01.20 + * ========================================================== + * + * ========================================================== + * History: + * + * Date Author Description + * ---------------------------------------------------------- + * + * 2008.07.02 Tom Lin created + * 2008.09.18 Tom Lin improve performance + * 2009.01.20 Tom Lin fix clock stretch issue + * ========================================================== + * + * Copyright 2008 Afatech, Inc. All rights reserved. + * + */ + +//#include <stdio.h> //for Linux +#include "type.h" +#include "error.h" +#include "user.h" +#include "register.h" +#include "standard.h" +#include "xc4000_control.h" +#include "i2c_driver.h" +#include "xc4000_firmwares.h" +#include "xc4000_channelmaps.h" +#include "xc4000_standards.h" +#include "xc4000_scodes.h" +#include "Xceive_XC4000_Script.h" + + +extern Demodulator* XC4000Handle; +extern Byte XC4000Chip; + + +Dword XC4000_open ( + IN Demodulator* demodulator, + IN Byte chip +) { + Dword error = Error_NO_ERROR; + + XC4000Handle = demodulator; + XC4000Chip = chip; + + /** Enable I2C clock dynamic speed */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83ED, 1); + if (error) goto exit; + + /** xc4000 links TV standard to its configuration file */ + XC4000_Loading_TVStandards (); + + /** xc4000 hardware resets */ + error = xc_reset(); + if (error) goto exit; + + User_delay (demodulator, 100); + + /** xc4000 downloads firmware */ + error = xc_load_i2c_sequence (XC4000_firmware_SEQUENCE); + if (error) goto exit; + + /** xc4000 initiates */ + error = xc_load_i2c_sequence (XC4000_INIT_SEQUENCE); + if (error) goto exit; + + /** Disable I2C clock dynamic speed */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83ED, 0); + if (error) goto exit; + +exit: + return (error); +} + + +Dword XC4000_set ( + IN Demodulator* demodulator, + IN Byte chip, + IN Word bandwidth, + IN Dword frequency +) { + Dword error = Error_NO_ERROR; + Byte amplitude[4]; + + amplitude[0] = 0, amplitude[1] = 0x10, amplitude[2] = 0, amplitude[3] = 0x87; + + XC4000Handle = demodulator; + XC4000Chip = chip; + + /** Enable I2C clock dynamic speed */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83ED, 1); + if (error) goto exit; + + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83E6, 0x28); + if (error) goto exit; + + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83E7, 0x07); + if (error) goto exit; + + if (bandwidth == 6000) + { + /** Tell f/w the stretched packet */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83E3, 23); + if (error) goto exit; + + /** xc4000 sets TV standard to DVBT-6 */ + error = xc_load_i2c_sequence (XC4000_Standard[23].ConfFile); + if (error) goto exit; + } + else if (bandwidth == 7000) + { + /** Tell f/w the stretched packet */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83E3, 22); + if (error) goto exit; + + /** xc4000 sets TV standard to DVBT-7 */ + error = xc_load_i2c_sequence(XC4000_Standard[26].ConfFile); + if (error) goto exit; + } + else if (bandwidth == 8000) + { + /** Tell f/w the stretched packet */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83E3, 22); + if (error) goto exit; + + /** xc4000 sets TV standard to DVBT-8 */ + error = xc_load_i2c_sequence(XC4000_Standard[24].ConfFile); + if (error) goto exit; + } + else + { + error = Error_INVALID_BW; + goto exit; + } + + /** xc4000 enters direct-setting-mode */ + error = xc_enter_directsitting_mode (); + if (error) goto exit; + + /** xc4000 downloads scode */ + error = xc_send_i2c_data (&XC4000_scode_table_4560000[0][0], 13); + if (error) goto exit; + + /** xc4000 exits direct-setting-mode */ + error = xc_exit_directsitting_mode (); + if (error) goto exit; + + /** xc4000 sets RF mode to Air(0) */ + error = xc_rf_mode(0); + if (error) goto exit; + + /** xc4000 sets dcode */ + error = xc_set_dcode (0); + if (error) goto exit; + + /** xc4000 sets RF frequency of Hz */ + if (bandwidth == 6000) + frequency -= 1750; + else if (bandwidth == 7000) + frequency -= 2250; + else if (bandwidth == 8000) + frequency -= 2750; + else + { + error = Error_INVALID_BW; + goto exit; + } + + error = xc_set_RF_frequency (frequency * 1000); + if (error) goto exit; + + /** Tell f/w the stretched packet 0x83E3, 0x83E6, 0x83E7 */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83E3, 1); + if (error) goto exit; + + /** Improve Performance by set reg 0x0010 to the value of 0x0087 */ + error = Standard_writeTunerRegisters (demodulator, chip, 0x0000, 4, amplitude); + if (error) goto exit; + +exit: + /** Disable I2C clock dynamic speed */ + error = Standard_writeRegister (demodulator, 0, Processor_LINK, 0x83ED, 0); + + return (error); +} + + +Dword XC4000_close ( + IN Demodulator* demodulator, + IN Byte chip +) { + return (Error_NO_ERROR); +} + + +TunerDescription tuner_XC4000 = { + XC4000_open, + XC4000_close, + XC4000_set, + XC4000_scripts, + XC4000_scriptSets, + XC4000_ADDRESS, /** tuner i2c address */ + 0, /** length of tuner register address */ + 4560000, /** tuner if */ + True, /** spectrum inverse */ + 0x2A, /** tuner id */ +}; |