1/* 2 Mantis VP-2033 driver 3 4 Copyright (C) Manu Abraham (abraham.manu@gmail.com) 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19*/ 20 21#include <linux/signal.h> 22#include <linux/sched.h> 23#include <linux/interrupt.h> 24 25#include "dmxdev.h" 26#include "dvbdev.h" 27#include "dvb_demux.h" 28#include "dvb_frontend.h" 29#include "dvb_net.h" 30 31#include "tda1002x.h" 32#include "mantis_common.h" 33#include "mantis_ioc.h" 34#include "mantis_dvb.h" 35#include "mantis_vp2033.h" 36 37#define MANTIS_MODEL_NAME "VP-2033" 38#define MANTIS_DEV_TYPE "DVB-C" 39 40struct tda1002x_config vp2033_tda1002x_cu1216_config = { 41 .demod_address = 0x18 >> 1, 42 .invert = 1, 43}; 44 45struct tda10023_config vp2033_tda10023_cu1216_config = { 46 .demod_address = 0x18 >> 1, 47 .invert = 1, 48}; 49 50static u8 read_pwm(struct mantis_pci *mantis) 51{ 52 struct i2c_adapter *adapter = &mantis->adapter; 53 54 u8 b = 0xff; 55 u8 pwm; 56 struct i2c_msg msg[] = { 57 {.addr = 0x50, .flags = 0, .buf = &b, .len = 1}, 58 {.addr = 0x50, .flags = I2C_M_RD, .buf = &pwm, .len = 1} 59 }; 60 61 if ((i2c_transfer(adapter, msg, 2) != 2) 62 || (pwm == 0xff)) 63 pwm = 0x48; 64 65 return pwm; 66} 67 68static int tda1002x_cu1216_tuner_set(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) 69{ 70 struct mantis_pci *mantis = fe->dvb->priv; 71 struct i2c_adapter *adapter = &mantis->adapter; 72 73 u8 buf[6]; 74 struct i2c_msg msg = {.addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf)}; 75 int i; 76 77#define CU1216_IF 36125000 78#define TUNER_MUL 62500 79 80 u32 div = (params->frequency + CU1216_IF + TUNER_MUL / 2) / TUNER_MUL; 81 82 buf[0] = (div >> 8) & 0x7f; 83 buf[1] = div & 0xff; 84 buf[2] = 0xce; 85 buf[3] = (params->frequency < 150000000 ? 0x01 : 86 params->frequency < 445000000 ? 0x02 : 0x04); 87 buf[4] = 0xde; 88 buf[5] = 0x20; 89 90 if (fe->ops.i2c_gate_ctrl) 91 fe->ops.i2c_gate_ctrl(fe, 1); 92 93 if (i2c_transfer(adapter, &msg, 1) != 1) 94 return -EIO; 95 96 /* wait for the pll lock */ 97 msg.flags = I2C_M_RD; 98 msg.len = 1; 99 for (i = 0; i < 20; i++) { 100 if (fe->ops.i2c_gate_ctrl) 101 fe->ops.i2c_gate_ctrl(fe, 1); 102 103 if (i2c_transfer(adapter, &msg, 1) == 1 && (buf[0] & 0x40)) 104 break; 105 106 msleep(10); 107 } 108 109 /* switch the charge pump to the lower current */ 110 msg.flags = 0; 111 msg.len = 2; 112 msg.buf = &buf[2]; 113 buf[2] &= ~0x40; 114 if (fe->ops.i2c_gate_ctrl) 115 fe->ops.i2c_gate_ctrl(fe, 1); 116 117 if (i2c_transfer(adapter, &msg, 1) != 1) 118 return -EIO; 119 120 return 0; 121} 122 123static int vp2033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe) 124{ 125 struct i2c_adapter *adapter = &mantis->adapter; 126 127 int err = 0; 128 129 err = mantis_frontend_power(mantis, POWER_ON); 130 if (err == 0) { 131 mantis_frontend_soft_reset(mantis); 132 msleep(250); 133 134 dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)"); 135 fe = tda10021_attach(&vp2033_tda1002x_cu1216_config, 136 adapter, 137 read_pwm(mantis)); 138 139 if (fe) { 140 dprintk(MANTIS_ERROR, 1, 141 "found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x", 142 vp2033_tda1002x_cu1216_config.demod_address); 143 } else { 144 fe = tda10023_attach(&vp2033_tda10023_cu1216_config, 145 adapter, 146 read_pwm(mantis)); 147 148 if (fe) { 149 dprintk(MANTIS_ERROR, 1, 150 "found Philips CU1216 DVB-C frontend (TDA10023) @ 0x%02x", 151 vp2033_tda1002x_cu1216_config.demod_address); 152 } 153 } 154 155 if (fe) { 156 fe->ops.tuner_ops.set_params = tda1002x_cu1216_tuner_set; 157 dprintk(MANTIS_ERROR, 1, "Mantis DVB-C Philips CU1216 frontend attach success"); 158 } else { 159 return -1; 160 } 161 } else { 162 dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>", 163 adapter->name, 164 err); 165 166 return -EIO; 167 } 168 169 mantis->fe = fe; 170 dprintk(MANTIS_DEBUG, 1, "Done!"); 171 172 return 0; 173} 174 175struct mantis_hwconfig vp2033_config = { 176 .model_name = MANTIS_MODEL_NAME, 177 .dev_type = MANTIS_DEV_TYPE, 178 .ts_size = MANTIS_TS_204, 179 180 .baud_rate = MANTIS_BAUD_9600, 181 .parity = MANTIS_PARITY_NONE, 182 .bytes = 0, 183 184 .frontend_init = vp2033_frontend_init, 185 .power = GPIF_A12, 186 .reset = GPIF_A13, 187}; 188