1 /* z0194a.h Sharp z0194a tuner support 2 * 3 * Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by) 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License as published by the 7 * Free Software Foundation, version 2. 8 * 9 * see Documentation/media/dvb-drivers/dvb-usb.rst for more information 10 */ 11 12 #ifndef Z0194A 13 #define Z0194A 14 15 static int sharp_z0194a_set_symbol_rate(struct dvb_frontend *fe, 16 u32 srate, u32 ratio) 17 { 18 u8 aclk = 0; 19 u8 bclk = 0; 20 21 if (srate < 1500000) { 22 aclk = 0xb7; bclk = 0x47; } 23 else if (srate < 3000000) { 24 aclk = 0xb7; bclk = 0x4b; } 25 else if (srate < 7000000) { 26 aclk = 0xb7; bclk = 0x4f; } 27 else if (srate < 14000000) { 28 aclk = 0xb7; bclk = 0x53; } 29 else if (srate < 30000000) { 30 aclk = 0xb6; bclk = 0x53; } 31 else if (srate < 45000000) { 32 aclk = 0xb4; bclk = 0x51; } 33 34 stv0299_writereg(fe, 0x13, aclk); 35 stv0299_writereg(fe, 0x14, bclk); 36 stv0299_writereg(fe, 0x1f, (ratio >> 16) & 0xff); 37 stv0299_writereg(fe, 0x20, (ratio >> 8) & 0xff); 38 stv0299_writereg(fe, 0x21, (ratio) & 0xf0); 39 40 return 0; 41 } 42 43 static u8 sharp_z0194a_inittab[] = { 44 0x01, 0x15, 45 0x02, 0x30, 46 0x03, 0x00, 47 0x04, 0x7d, /* F22FR = 0x7d, F22 = f_VCO / 128 / 0x7d = 22 kHz */ 48 0x05, 0x35, /* I2CT = 0, SCLT = 1, SDAT = 1 */ 49 0x06, 0x40, /* DAC not used, set to high impendance mode */ 50 0x07, 0x00, /* DAC LSB */ 51 0x08, 0x40, /* DiSEqC off, LNB power on OP2/LOCK pin on */ 52 0x09, 0x00, /* FIFO */ 53 0x0c, 0x51, /* OP1 ctl = Normal, OP1 val = 1 (LNB Power ON) */ 54 0x0d, 0x82, /* DC offset compensation = ON, beta_agc1 = 2 */ 55 0x0e, 0x23, /* alpha_tmg = 2, beta_tmg = 3 */ 56 0x10, 0x3f, /* AGC2 0x3d */ 57 0x11, 0x84, 58 0x12, 0xb9, 59 0x15, 0xc9, /* lock detector threshold */ 60 0x16, 0x00, 61 0x17, 0x00, 62 0x18, 0x00, 63 0x19, 0x00, 64 0x1a, 0x00, 65 0x1f, 0x50, 66 0x20, 0x00, 67 0x21, 0x00, 68 0x22, 0x00, 69 0x23, 0x00, 70 0x28, 0x00, /* out imp: normal out type: parallel FEC mode:0 */ 71 0x29, 0x1e, /* 1/2 threshold */ 72 0x2a, 0x14, /* 2/3 threshold */ 73 0x2b, 0x0f, /* 3/4 threshold */ 74 0x2c, 0x09, /* 5/6 threshold */ 75 0x2d, 0x05, /* 7/8 threshold */ 76 0x2e, 0x01, 77 0x31, 0x1f, /* test all FECs */ 78 0x32, 0x19, /* viterbi and synchro search */ 79 0x33, 0xfc, /* rs control */ 80 0x34, 0x93, /* error control */ 81 0x0f, 0x52, 82 0xff, 0xff 83 }; 84 85 #endif 86