--- /dev/null
+/*
+ * Driver for Dummy Frontend
+ *
+ * Written by Emard <emard@softhome.net>
+ *
+ * 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/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include "dvb_frontend.h"
+#include "dvb_dummy_fe.h"
+
+
+struct dvb_dummy_fe_state {
+ struct dvb_frontend frontend;
+};
+
+
+static int dvb_dummy_fe_read_status(struct dvb_frontend* fe, fe_status_t* status)
+{
+ *status = FE_HAS_SIGNAL
+ | FE_HAS_CARRIER
+ | FE_HAS_VITERBI
+ | FE_HAS_SYNC
+ | FE_HAS_LOCK;
+
+ return 0;
+}
+
+static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
+{
+ *ber = 0;
+ return 0;
+}
+
+static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
+{
+ *strength = 0;
+ return 0;
+}
+
+static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+ *snr = 0;
+ return 0;
+}
+
+static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
+{
+ *ucblocks = 0;
+ return 0;
+}
+
+/*
+ * Only needed if it actually reads something from the hardware
+ */
+static int dvb_dummy_fe_get_frontend(struct dvb_frontend *fe)
+{
+ return 0;
+}
+
+static int dvb_dummy_fe_set_frontend(struct dvb_frontend *fe)
+{
+ if (fe->ops.tuner_ops.set_params) {
+ fe->ops.tuner_ops.set_params(fe);
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+ }
+
+ return 0;
+}
+
+static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
+{
+ return 0;
+}
+
+static int dvb_dummy_fe_init(struct dvb_frontend* fe)
+{
+ return 0;
+}
+
+static int dvb_dummy_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
+{
+ return 0;
+}
+
+static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
+{
+ return 0;
+}
+
+static void dvb_dummy_fe_release(struct dvb_frontend* fe)
+{
+ struct dvb_dummy_fe_state* state = fe->demodulator_priv;
+ kfree(state);
+}
+
+static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
+
+struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
+{
+ struct dvb_dummy_fe_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ /* create dvb_frontend */
+ memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops));
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+}
+
+static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
+
+struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void)
+{
+ struct dvb_dummy_fe_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ /* create dvb_frontend */
+ memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops));
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+}
+
+static struct dvb_frontend_ops dvb_dummy_fe_qam_ops;
+
+struct dvb_frontend *dvb_dummy_fe_qam_attach(void)
+{
+ struct dvb_dummy_fe_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ /* create dvb_frontend */
+ memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops));
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+}
+
+static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
+ .delsys = { SYS_DVBT },
+ .info = {
+ .name = "Dummy DVB-T",
+ .frequency_min = 0,
+ .frequency_max = 863250000,
+ .frequency_stepsize = 62500,
+ .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+ FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
+ FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
+ FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
+ FE_CAN_TRANSMISSION_MODE_AUTO |
+ FE_CAN_GUARD_INTERVAL_AUTO |
+ FE_CAN_HIERARCHY_AUTO,
+ },
+
+ .release = dvb_dummy_fe_release,
+
+ .init = dvb_dummy_fe_init,
+ .sleep = dvb_dummy_fe_sleep,
+
+ .set_frontend = dvb_dummy_fe_set_frontend,
+ .get_frontend = dvb_dummy_fe_get_frontend,
+
+ .read_status = dvb_dummy_fe_read_status,
+ .read_ber = dvb_dummy_fe_read_ber,
+ .read_signal_strength = dvb_dummy_fe_read_signal_strength,
+ .read_snr = dvb_dummy_fe_read_snr,
+ .read_ucblocks = dvb_dummy_fe_read_ucblocks,
+};
+
+static struct dvb_frontend_ops dvb_dummy_fe_qam_ops = {
+ .delsys = { SYS_DVBC_ANNEX_A },
+ .info = {
+ .name = "Dummy DVB-C",
+ .frequency_stepsize = 62500,
+ .frequency_min = 51000000,
+ .frequency_max = 858000000,
+ .symbol_rate_min = (57840000/2)/64, /* SACLK/64 == (XIN/2)/64 */
+ .symbol_rate_max = (57840000/2)/4, /* SACLK/4 */
+ .caps = FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
+ FE_CAN_QAM_128 | FE_CAN_QAM_256 |
+ FE_CAN_FEC_AUTO | FE_CAN_INVERSION_AUTO
+ },
+
+ .release = dvb_dummy_fe_release,
+
+ .init = dvb_dummy_fe_init,
+ .sleep = dvb_dummy_fe_sleep,
+
+ .set_frontend = dvb_dummy_fe_set_frontend,
+ .get_frontend = dvb_dummy_fe_get_frontend,
+
+ .read_status = dvb_dummy_fe_read_status,
+ .read_ber = dvb_dummy_fe_read_ber,
+ .read_signal_strength = dvb_dummy_fe_read_signal_strength,
+ .read_snr = dvb_dummy_fe_read_snr,
+ .read_ucblocks = dvb_dummy_fe_read_ucblocks,
+};
+
+static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops = {
+ .delsys = { SYS_DVBS },
+ .info = {
+ .name = "Dummy DVB-S",
+ .frequency_min = 950000,
+ .frequency_max = 2150000,
+ .frequency_stepsize = 250, /* kHz for QPSK frontends */
+ .frequency_tolerance = 29500,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+ .caps = FE_CAN_INVERSION_AUTO |
+ 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_FEC_AUTO |
+ FE_CAN_QPSK
+ },
+
+ .release = dvb_dummy_fe_release,
+
+ .init = dvb_dummy_fe_init,
+ .sleep = dvb_dummy_fe_sleep,
+
+ .set_frontend = dvb_dummy_fe_set_frontend,
+ .get_frontend = dvb_dummy_fe_get_frontend,
+
+ .read_status = dvb_dummy_fe_read_status,
+ .read_ber = dvb_dummy_fe_read_ber,
+ .read_signal_strength = dvb_dummy_fe_read_signal_strength,
+ .read_snr = dvb_dummy_fe_read_snr,
+ .read_ucblocks = dvb_dummy_fe_read_ucblocks,
+
+ .set_voltage = dvb_dummy_fe_set_voltage,
+ .set_tone = dvb_dummy_fe_set_tone,
+};
+
+MODULE_DESCRIPTION("DVB DUMMY Frontend");
+MODULE_AUTHOR("Emard");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
+EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
+EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);
Code Review / kvmfornfv.git / blobdiff