/* Mantis VP-2040 driver Copyright (C) Manu Abraham (abraham.manu@gmail.com) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/signal.h> #include <linux/sched.h> #include <linux/interrupt.h> #include <media/dmxdev.h> #include <media/dvbdev.h> #include <media/dvb_demux.h> #include <media/dvb_frontend.h> #include <media/dvb_net.h> #include "tda1002x.h" #include "mantis_common.h" #include "mantis_ioc.h" #include "mantis_dvb.h" #include "mantis_vp2040.h" #define MANTIS_MODEL_NAME "VP-2040" #define MANTIS_DEV_TYPE "DVB-C" static struct tda1002x_config vp2040_tda1002x_cu1216_config = { .demod_address = 0x18 >> 1, .invert = 1, }; static struct tda10023_config vp2040_tda10023_cu1216_config = { .demod_address = 0x18 >> 1, .invert = 1, }; static int tda1002x_cu1216_tuner_set(struct dvb_frontend *fe) { struct dtv_frontend_properties *p = &fe->dtv_property_cache; struct mantis_pci *mantis = fe->dvb->priv; struct i2c_adapter *adapter = &mantis->adapter; u8 buf[6]; struct i2c_msg msg = {.addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf)}; int i; #define CU1216_IF 36125000 #define TUNER_MUL 62500 u32 div = (p->frequency + CU1216_IF + TUNER_MUL / 2) / TUNER_MUL; buf[0] = (div >> 8) & 0x7f; buf[1] = div & 0xff; buf[2] = 0xce; buf[3] = (p->frequency < 150000000 ? 0x01 : p->frequency < 445000000 ? 0x02 : 0x04); buf[4] = 0xde; buf[5] = 0x20; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); if (i2c_transfer(adapter, &msg, 1) != 1) return -EIO; /* wait for the pll lock */ msg.flags = I2C_M_RD; msg.len = 1; for (i = 0; i < 20; i++) { if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); if (i2c_transfer(adapter, &msg, 1) == 1 && (buf[0] & 0x40)) break; msleep(10); } /* switch the charge pump to the lower current */ msg.flags = 0; msg.len = 2; msg.buf = &buf[2]; buf[2] &= ~0x40; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); if (i2c_transfer(adapter, &msg, 1) != 1) return -EIO; return 0; } static u8 read_pwm(struct mantis_pci *mantis) { struct i2c_adapter *adapter = &mantis->adapter; u8 b = 0xff; u8 pwm; struct i2c_msg msg[] = { {.addr = 0x50, .flags = 0, .buf = &b, .len = 1}, {.addr = 0x50, .flags = I2C_M_RD, .buf = &pwm, .len = 1} }; if ((i2c_transfer(adapter, msg, 2) != 2) || (pwm == 0xff)) pwm = 0x48; return pwm; } static int vp2040_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe) { struct i2c_adapter *adapter = &mantis->adapter; int err = 0; err = mantis_frontend_power(mantis, POWER_ON); if (err == 0) { mantis_frontend_soft_reset(mantis); msleep(250); dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)"); fe = dvb_attach(tda10021_attach, &vp2040_tda1002x_cu1216_config, adapter, read_pwm(mantis)); if (fe) { dprintk(MANTIS_ERROR, 1, "found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x", vp2040_tda1002x_cu1216_config.demod_address); } else { fe = dvb_attach(tda10023_attach, &vp2040_tda10023_cu1216_config, adapter, read_pwm(mantis)); if (fe) { dprintk(MANTIS_ERROR, 1, "found Philips CU1216 DVB-C frontend (TDA10023) @ 0x%02x", vp2040_tda1002x_cu1216_config.demod_address); } } if (fe) { fe->ops.tuner_ops.set_params = tda1002x_cu1216_tuner_set; dprintk(MANTIS_ERROR, 1, "Mantis DVB-C Philips CU1216 frontend attach success"); } else { return -1; } } else { dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>", adapter->name, err); return -EIO; } mantis->fe = fe; dprintk(MANTIS_DEBUG, 1, "Done!"); return 0; } struct mantis_hwconfig vp2040_config = { .model_name = MANTIS_MODEL_NAME, .dev_type = MANTIS_DEV_TYPE, .ts_size = MANTIS_TS_204, .baud_rate = MANTIS_BAUD_9600, .parity = MANTIS_PARITY_NONE, .bytes = 0, .frontend_init = vp2040_frontend_init, .power = GPIF_A12, .reset = GPIF_A13, };