1 files changed, 276 insertions, 0 deletions

diff --git a/drivers/media/dvb/frontends/dvb_dummy_fe.c b/drivers/media/dvb/frontends/dvb_dummy_fe.c
new file mode 100644
index 00000000000..a7fc7e53a55
--- /dev/null
+++ b/drivers/media/dvb/frontends/dvb_dummy_fe.c
@@ -0,0 +1,276 @@
+/*
+ *  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;
+}
+
+static int dvb_dummy_fe_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+{
+        return 0;
+}
+
+static int dvb_dummy_fe_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+{
+        if (fe->ops.tuner_ops.set_params) {
+                fe->ops.tuner_ops.set_params(fe, p);
+                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 == NULL) goto error;
+
+        /* 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;
+
+error:
+        kfree(state);
+        return NULL;
+}
+
+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 == NULL) goto error;
+
+        /* 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;
+
+error:
+        kfree(state);
+        return NULL;
+}
+
+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 == NULL) goto error;
+
+        /* 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;
+
+error:
+        kfree(state);
+        return NULL;
+}
+
+static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
+
+        .info = {
+                .name                   = "Dummy DVB-T",
+                .type                   = FE_OFDM,
+                .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 = {
+
+        .info = {
+                .name                   = "Dummy DVB-C",
+                .type                   = FE_QAM,
+                .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 = {
+
+        .info = {
+                .name                   = "Dummy DVB-S",
+                .type                   = FE_QPSK,
+                .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);