177 lines
3.9 KiB
C
177 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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Mantis VP-2033 driver
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Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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*/
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#include <linux/signal.h>
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#include <linux/sched.h>
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#include <linux/interrupt.h>
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#include <media/dmxdev.h>
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#include <media/dvbdev.h>
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#include <media/dvb_demux.h>
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#include <media/dvb_frontend.h>
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#include <media/dvb_net.h>
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#include "tda1002x.h"
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#include "mantis_common.h"
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#include "mantis_ioc.h"
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#include "mantis_dvb.h"
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#include "mantis_vp2033.h"
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#define MANTIS_MODEL_NAME "VP-2033"
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#define MANTIS_DEV_TYPE "DVB-C"
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static struct tda1002x_config vp2033_tda1002x_cu1216_config = {
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.demod_address = 0x18 >> 1,
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.invert = 1,
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};
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static struct tda10023_config vp2033_tda10023_cu1216_config = {
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.demod_address = 0x18 >> 1,
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.invert = 1,
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};
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static u8 read_pwm(struct mantis_pci *mantis)
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{
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struct i2c_adapter *adapter = &mantis->adapter;
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u8 b = 0xff;
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u8 pwm;
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struct i2c_msg msg[] = {
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{.addr = 0x50, .flags = 0, .buf = &b, .len = 1},
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{.addr = 0x50, .flags = I2C_M_RD, .buf = &pwm, .len = 1}
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};
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if ((i2c_transfer(adapter, msg, 2) != 2)
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|| (pwm == 0xff))
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pwm = 0x48;
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return pwm;
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}
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static int tda1002x_cu1216_tuner_set(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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struct mantis_pci *mantis = fe->dvb->priv;
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struct i2c_adapter *adapter = &mantis->adapter;
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u8 buf[6];
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struct i2c_msg msg = {.addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf)};
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int i;
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#define CU1216_IF 36125000
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#define TUNER_MUL 62500
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u32 div = (p->frequency + CU1216_IF + TUNER_MUL / 2) / TUNER_MUL;
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buf[0] = (div >> 8) & 0x7f;
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buf[1] = div & 0xff;
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buf[2] = 0xce;
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buf[3] = (p->frequency < 150000000 ? 0x01 :
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p->frequency < 445000000 ? 0x02 : 0x04);
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buf[4] = 0xde;
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buf[5] = 0x20;
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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if (i2c_transfer(adapter, &msg, 1) != 1)
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return -EIO;
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/* wait for the pll lock */
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msg.flags = I2C_M_RD;
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msg.len = 1;
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for (i = 0; i < 20; i++) {
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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if (i2c_transfer(adapter, &msg, 1) == 1 && (buf[0] & 0x40))
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break;
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msleep(10);
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}
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/* switch the charge pump to the lower current */
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msg.flags = 0;
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msg.len = 2;
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msg.buf = &buf[2];
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buf[2] &= ~0x40;
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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if (i2c_transfer(adapter, &msg, 1) != 1)
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return -EIO;
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return 0;
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}
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static int vp2033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe)
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{
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struct i2c_adapter *adapter = &mantis->adapter;
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int err = 0;
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err = mantis_frontend_power(mantis, POWER_ON);
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if (err == 0) {
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mantis_frontend_soft_reset(mantis);
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msleep(250);
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dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)");
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fe = dvb_attach(tda10021_attach, &vp2033_tda1002x_cu1216_config,
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adapter,
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read_pwm(mantis));
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if (fe) {
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dprintk(MANTIS_ERROR, 1,
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"found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x",
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vp2033_tda1002x_cu1216_config.demod_address);
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} else {
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fe = dvb_attach(tda10023_attach, &vp2033_tda10023_cu1216_config,
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adapter,
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read_pwm(mantis));
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if (fe) {
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dprintk(MANTIS_ERROR, 1,
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"found Philips CU1216 DVB-C frontend (TDA10023) @ 0x%02x",
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vp2033_tda1002x_cu1216_config.demod_address);
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}
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}
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if (fe) {
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fe->ops.tuner_ops.set_params = tda1002x_cu1216_tuner_set;
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dprintk(MANTIS_ERROR, 1, "Mantis DVB-C Philips CU1216 frontend attach success");
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} else {
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return -1;
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}
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} else {
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dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>",
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adapter->name,
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err);
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return -EIO;
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}
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mantis->fe = fe;
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dprintk(MANTIS_DEBUG, 1, "Done!");
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return 0;
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}
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struct mantis_hwconfig vp2033_config = {
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.model_name = MANTIS_MODEL_NAME,
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.dev_type = MANTIS_DEV_TYPE,
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.ts_size = MANTIS_TS_204,
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.baud_rate = MANTIS_BAUD_9600,
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.parity = MANTIS_PARITY_NONE,
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.bytes = 0,
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.frontend_init = vp2033_frontend_init,
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.power = GPIF_A12,
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.reset = GPIF_A13,
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};
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