^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* DVB frontend part of the Linux driver for TwinhanDTV Alpha/MagicBoxII USB2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * DVB-T receiver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Thanks to Twinhan who kindly provided hardware and information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * see Documentation/driver-api/media/drivers/dvb-usb.rst for more information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "vp7045.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /* It is a Zarlink MT352 within a Samsung Tuner (DNOS404ZH102A) - 040929 - AAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * Programming is hidden inside the firmware, so set_frontend is very easy.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * Even though there is a Firmware command that one can use to access the demod
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * via its registers. This is used for status information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct vp7045_fe_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct dvb_frontend fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct dvb_usb_device *d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static int vp7045_fe_read_status(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) enum fe_status *status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct vp7045_fe_state *state = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) u8 s0 = vp7045_read_reg(state->d,0x00),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) s1 = vp7045_read_reg(state->d,0x01),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) s3 = vp7045_read_reg(state->d,0x03);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) *status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) if (s0 & (1 << 4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) *status |= FE_HAS_CARRIER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (s0 & (1 << 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) *status |= FE_HAS_VITERBI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if (s0 & (1 << 5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) *status |= FE_HAS_LOCK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (s1 & (1 << 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) *status |= FE_HAS_SYNC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (s3 & (1 << 6))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) *status |= FE_HAS_SIGNAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) if ((*status & (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) *status &= ~FE_HAS_LOCK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) static int vp7045_fe_read_ber(struct dvb_frontend* fe, u32 *ber)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct vp7045_fe_state *state = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) *ber = (vp7045_read_reg(state->d, 0x0D) << 16) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) (vp7045_read_reg(state->d, 0x0E) << 8) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) vp7045_read_reg(state->d, 0x0F);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static int vp7045_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct vp7045_fe_state *state = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) *unc = (vp7045_read_reg(state->d, 0x10) << 8) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) vp7045_read_reg(state->d, 0x11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) static int vp7045_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct vp7045_fe_state *state = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) u16 signal = (vp7045_read_reg(state->d, 0x14) << 8) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) vp7045_read_reg(state->d, 0x15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) *strength = ~signal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static int vp7045_fe_read_snr(struct dvb_frontend* fe, u16 *snr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct vp7045_fe_state *state = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) u8 _snr = vp7045_read_reg(state->d, 0x09);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) *snr = (_snr << 8) | _snr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static int vp7045_fe_init(struct dvb_frontend* fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) static int vp7045_fe_sleep(struct dvb_frontend* fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static int vp7045_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) tune->min_delay_ms = 800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int vp7045_fe_set_frontend(struct dvb_frontend *fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) struct vp7045_fe_state *state = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) u8 buf[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) u32 freq = fep->frequency / 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) buf[0] = (freq >> 16) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) buf[1] = (freq >> 8) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) buf[2] = freq & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) buf[3] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) switch (fep->bandwidth_hz) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) case 8000000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) buf[4] = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) case 7000000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) buf[4] = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) case 6000000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) buf[4] = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) vp7045_usb_op(state->d,LOCK_TUNER_COMMAND,buf,5,NULL,0,200);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) static void vp7045_fe_release(struct dvb_frontend* fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct vp7045_fe_state *state = fe->demodulator_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) kfree(state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static const struct dvb_frontend_ops vp7045_fe_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct dvb_frontend * vp7045_fe_attach(struct dvb_usb_device *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) struct vp7045_fe_state *s = kzalloc(sizeof(struct vp7045_fe_state), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (s == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) s->d = d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) memcpy(&s->fe.ops, &vp7045_fe_ops, sizeof(struct dvb_frontend_ops));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) s->fe.demodulator_priv = s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) return &s->fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) static const struct dvb_frontend_ops vp7045_fe_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) .delsys = { SYS_DVBT },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) .info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) .name = "Twinhan VP7045/46 USB DVB-T",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) .frequency_min_hz = 44250 * kHz,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) .frequency_max_hz = 867250 * kHz,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) .frequency_stepsize_hz = 1 * kHz,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) .caps = FE_CAN_INVERSION_AUTO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) FE_CAN_TRANSMISSION_MODE_AUTO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) FE_CAN_GUARD_INTERVAL_AUTO |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) FE_CAN_RECOVER |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) FE_CAN_HIERARCHY_AUTO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) .release = vp7045_fe_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) .init = vp7045_fe_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) .sleep = vp7045_fe_sleep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) .set_frontend = vp7045_fe_set_frontend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) .get_tune_settings = vp7045_fe_get_tune_settings,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) .read_status = vp7045_fe_read_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) .read_ber = vp7045_fe_read_ber,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) .read_signal_strength = vp7045_fe_read_signal_strength,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) .read_snr = vp7045_fe_read_snr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) .read_ucblocks = vp7045_fe_read_unc_blocks,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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