--- /dev/null
+/* DVB frontend part of the Linux driver for the TwinhanDTV StarBox USB2.0
+ * DVB-S receiver.
+ *
+ * Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
+ * Metzler Brothers Systementwicklung GbR
+ *
+ * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.de>
+ *
+ * Thanks to Twinhan who kindly provided hardware and information.
+ *
+ * This file can be removed soon, after the DST-driver is rewritten to provice
+ * the frontend-controlling separately.
+ *
+ * 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, version 2.
+ *
+ * see Documentation/dvb/README.dvb-usb for more information
+ *
+ */
+#include "vp702x.h"
+
+struct vp702x_fe_state {
+ struct dvb_frontend fe;
+ struct dvb_usb_device *d;
+
+ fe_sec_voltage_t voltage;
+ fe_sec_tone_mode_t tone_mode;
+
+ u8 lnb_buf[8];
+
+ u8 lock;
+ u8 sig;
+ u8 snr;
+
+ unsigned long next_status_check;
+ unsigned long status_check_interval;
+};
+
+static int vp702x_fe_refresh_state(struct vp702x_fe_state *st)
+{
+ u8 buf[10];
+ if (time_after(jiffies,st->next_status_check)) {
+ vp702x_usb_in_op(st->d,READ_STATUS,0,0,buf,10);
+
+ st->lock = buf[4];
+ vp702x_usb_in_op(st->d,READ_TUNER_REG_REQ,0x11,0,&st->snr,1);
+ vp702x_usb_in_op(st->d,READ_TUNER_REG_REQ,0x15,0,&st->sig,1);
+
+ st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000;
+ }
+ return 0;
+}
+
+static u8 vp702x_chksum(u8 *buf,int f, int count)
+{
+ u8 s = 0;
+ int i;
+ for (i = f; i < f+count; i++)
+ s += buf[i];
+ return ~s+1;
+}
+
+static int vp702x_fe_read_status(struct dvb_frontend* fe, fe_status_t *status)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ vp702x_fe_refresh_state(st);
+ deb_fe("%s\n",__FUNCTION__);
+
+ if (st->lock == 0)
+ *status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_SIGNAL | FE_HAS_CARRIER;
+ else
+ *status = 0;
+
+ deb_fe("real state: %x\n",*status);
+ *status = 0x1f;
+
+ if (*status & FE_HAS_LOCK)
+ st->status_check_interval = 1000;
+ else
+ st->status_check_interval = 250;
+ return 0;
+}
+
+/* not supported by this Frontend */
+static int vp702x_fe_read_ber(struct dvb_frontend* fe, u32 *ber)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ vp702x_fe_refresh_state(st);
+ *ber = 0;
+ return 0;
+}
+
+/* not supported by this Frontend */
+static int vp702x_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ vp702x_fe_refresh_state(st);
+ *unc = 0;
+ return 0;
+}
+
+static int vp702x_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ vp702x_fe_refresh_state(st);
+
+ *strength = (st->sig << 8) | st->sig;
+ return 0;
+}
+
+static int vp702x_fe_read_snr(struct dvb_frontend* fe, u16 *snr)
+{
+ u8 _snr;
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ vp702x_fe_refresh_state(st);
+
+ _snr = (st->snr & 0x1f) * 0xff / 0x1f;
+ *snr = (_snr << 8) | _snr;
+ return 0;
+}
+
+static int vp702x_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
+{
+ deb_fe("%s\n",__FUNCTION__);
+ tune->min_delay_ms = 2000;
+ return 0;
+}
+
+static int vp702x_fe_set_frontend(struct dvb_frontend* fe,
+ struct dvb_frontend_parameters *fep)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ u32 freq = fep->frequency/1000;
+ /*CalFrequency*/
+/* u16 frequencyRef[16] = { 2, 4, 8, 16, 32, 64, 128, 256, 24, 5, 10, 20, 40, 80, 160, 320 }; */
+ u64 sr;
+ u8 cmd[8] = { 0 },ibuf[10];
+
+ cmd[0] = (freq >> 8) & 0x7f;
+ cmd[1] = freq & 0xff;
+ cmd[2] = 1; /* divrate == 4 -> frequencyRef[1] -> 1 here */
+
+ sr = (u64) (fep->u.qpsk.symbol_rate/1000) << 20;
+ do_div(sr,88000);
+ cmd[3] = (sr >> 12) & 0xff;
+ cmd[4] = (sr >> 4) & 0xff;
+ cmd[5] = (sr << 4) & 0xf0;
+
+ deb_fe("setting frontend to: %u -> %u (%x) LNB-based GHz, symbolrate: %d -> %lu (%lx)\n",
+ fep->frequency,freq,freq, fep->u.qpsk.symbol_rate,
+ (unsigned long) sr, (unsigned long) sr);
+
+/* if (fep->inversion == INVERSION_ON)
+ cmd[6] |= 0x80; */
+
+ if (st->voltage == SEC_VOLTAGE_18)
+ cmd[6] |= 0x40;
+
+/* if (fep->u.qpsk.symbol_rate > 8000000)
+ cmd[6] |= 0x20;
+
+ if (fep->frequency < 1531000)
+ cmd[6] |= 0x04;
+
+ if (st->tone_mode == SEC_TONE_ON)
+ cmd[6] |= 0x01;*/
+
+ cmd[7] = vp702x_chksum(cmd,0,7);
+
+ st->status_check_interval = 250;
+ st->next_status_check = jiffies;
+
+ vp702x_usb_in_op(st->d, RESET_TUNER, 0, 0, NULL, 0);
+ msleep(30);
+ vp702x_usb_inout_op(st->d,cmd,8,ibuf,10,100);
+
+ if (ibuf[2] == 0 && ibuf[3] == 0)
+ deb_fe("tuning failed.\n");
+ else
+ deb_fe("tuning succeeded.\n");
+
+ return 0;
+}
+
+static int vp702x_fe_get_frontend(struct dvb_frontend* fe,
+ struct dvb_frontend_parameters *fep)
+{
+ deb_fe("%s\n",__FUNCTION__);
+ return 0;
+}
+
+static int vp702x_fe_send_diseqc_msg (struct dvb_frontend* fe,
+ struct dvb_diseqc_master_cmd *m)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ u8 cmd[8],ibuf[10];
+ memset(cmd,0,8);
+
+ deb_fe("%s\n",__FUNCTION__);
+
+ if (m->msg_len > 4)
+ return -EINVAL;
+
+ cmd[1] = SET_DISEQC_CMD;
+ cmd[2] = m->msg_len;
+ memcpy(&cmd[3], m->msg, m->msg_len);
+ cmd[7] = vp702x_chksum(cmd,0,7);
+
+ vp702x_usb_inout_op(st->d,cmd,8,ibuf,10,100);
+
+ if (ibuf[2] == 0 && ibuf[3] == 0)
+ deb_fe("diseqc cmd failed.\n");
+ else
+ deb_fe("diseqc cmd succeeded.\n");
+
+ return 0;
+}
+
+static int vp702x_fe_send_diseqc_burst (struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
+{
+ deb_fe("%s\n",__FUNCTION__);
+ return 0;
+}
+
+static int vp702x_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ u8 ibuf[10];
+ deb_fe("%s\n",__FUNCTION__);
+
+ st->tone_mode = tone;
+
+ if (tone == SEC_TONE_ON)
+ st->lnb_buf[2] = 0x02;
+ else
+ st->lnb_buf[2] = 0x00;
+
+ st->lnb_buf[7] = vp702x_chksum(st->lnb_buf,0,7);
+
+ vp702x_usb_inout_op(st->d,st->lnb_buf,8,ibuf,10,100);
+ if (ibuf[2] == 0 && ibuf[3] == 0)
+ deb_fe("set_tone cmd failed.\n");
+ else
+ deb_fe("set_tone cmd succeeded.\n");
+
+ return 0;
+}
+
+static int vp702x_fe_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t
+ voltage)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ u8 ibuf[10];
+ deb_fe("%s\n",__FUNCTION__);
+
+ st->voltage = voltage;
+
+ if (voltage != SEC_VOLTAGE_OFF)
+ st->lnb_buf[4] = 0x01;
+ else
+ st->lnb_buf[4] = 0x00;
+
+ st->lnb_buf[7] = vp702x_chksum(st->lnb_buf,0,7);
+
+ vp702x_usb_inout_op(st->d,st->lnb_buf,8,ibuf,10,100);
+ if (ibuf[2] == 0 && ibuf[3] == 0)
+ deb_fe("set_voltage cmd failed.\n");
+ else
+ deb_fe("set_voltage cmd succeeded.\n");
+
+ return 0;
+}
+
+static void vp702x_fe_release(struct dvb_frontend* fe)
+{
+ struct vp702x_fe_state *st = fe->demodulator_priv;
+ kfree(st);
+}
+
+static struct dvb_frontend_ops vp702x_fe_ops;
+
+struct dvb_frontend * vp702x_fe_attach(struct dvb_usb_device *d)
+{
+ struct vp702x_fe_state *s = kzalloc(sizeof(struct vp702x_fe_state), GFP_KERNEL);
+ if (s == NULL)
+ goto error;
+
+ s->d = d;
+ s->fe.ops = &vp702x_fe_ops;
+ s->fe.demodulator_priv = s;
+
+ s->lnb_buf[1] = SET_LNB_POWER;
+ s->lnb_buf[3] = 0xff; /* 0=tone burst, 2=data burst, ff=off */
+
+ goto success;
+error:
+ return NULL;
+success:
+ return &s->fe;
+}
+
+
+static struct dvb_frontend_ops vp702x_fe_ops = {
+ .info = {
+ .name = "Twinhan DST-like frontend (VP7021/VP7020) DVB-S",
+ .type = FE_QPSK,
+ .frequency_min = 950000,
+ .frequency_max = 2150000,
+ .frequency_stepsize = 1000, /* kHz for QPSK frontends */
+ .frequency_tolerance = 0,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+ .symbol_rate_tolerance = 500, /* ppm */
+ .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
+ FE_CAN_QPSK |
+ FE_CAN_FEC_AUTO
+ },
+ .release = vp702x_fe_release,
+
+ .init = NULL,
+ .sleep = NULL,
+
+ .set_frontend = vp702x_fe_set_frontend,
+ .get_frontend = vp702x_fe_get_frontend,
+ .get_tune_settings = vp702x_fe_get_tune_settings,
+
+ .read_status = vp702x_fe_read_status,
+ .read_ber = vp702x_fe_read_ber,
+ .read_signal_strength = vp702x_fe_read_signal_strength,
+ .read_snr = vp702x_fe_read_snr,
+ .read_ucblocks = vp702x_fe_read_unc_blocks,
+
+ .diseqc_send_master_cmd = vp702x_fe_send_diseqc_msg,
+ .diseqc_send_burst = vp702x_fe_send_diseqc_burst,
+ .set_tone = vp702x_fe_set_tone,
+ .set_voltage = vp702x_fe_set_voltage,
+};
git://git.onelab.eu / linux-2.6.git / blobdiff