-/*
- * Driver for Dummy Frontend
+/*
+ * Driver for Dummy Frontend
*
* Written by Emard <emard@softhome.net>
*
* 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/moduleparam.h>
#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
#include "dvb_frontend.h"
+#include "dvb_dummy_fe.h"
-static int sct = 0;
+struct dvb_dummy_fe_state {
+ struct dvb_frontend frontend;
+};
-/* depending on module parameter sct deliver different infos
- */
-static struct dvb_frontend_info dvb_s_dummyfe_info = {
- .name = "DVB-S dummy frontend",
- .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,
-/* .symbol_rate_tolerance = ???,*/
- .notifier_delay = 50, /* 1/20 s */
- .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
-};
+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;
-static struct dvb_frontend_info dvb_c_dummyfe_info = {
- .name = "DVB-C dummy frontend",
- .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 */
-#if 0
- .frequency_tolerance = ???,
- .symbol_rate_tolerance = ???, /* ppm */ /* == 8% (spec p. 5) */
- .notifier_delay = ?,
-#endif
- .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
-};
+ return 0;
+}
-static struct dvb_frontend_info dvb_t_dummyfe_info = {
- .name = "DVB-T dummy frontend",
- .type = FE_OFDM,
- .frequency_min = 0,
- .frequency_max = 863250000,
- .frequency_stepsize = 62500,
- /*.frequency_tolerance = */ /* FIXME: 12% of SR */
- .symbol_rate_min = 0, /* FIXME */
- .symbol_rate_max = 9360000, /* FIXME */
- .symbol_rate_tolerance = 4000,
- .notifier_delay = 0,
- .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,
-};
+static int dvb_dummy_fe_read_ber(struct dvb_frontend* fe, u32* ber)
+{
+ *ber = 0;
+ return 0;
+}
-struct dvb_frontend_info *frontend_info(void)
+static int dvb_dummy_fe_read_signal_strength(struct dvb_frontend* fe, u16* strength)
{
- switch(sct)
- {
- case 2:
- return &dvb_t_dummyfe_info;
- case 1:
- return &dvb_c_dummyfe_info;
- case 0:
- default:
- return &dvb_s_dummyfe_info;
- }
+ *strength = 0;
+ return 0;
}
+static int dvb_dummy_fe_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+ *snr = 0;
+ return 0;
+}
-static int dvbdummyfe_ioctl (struct dvb_frontend *fe, unsigned int cmd, void *arg)
+static int dvb_dummy_fe_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
{
- switch (cmd) {
- case FE_GET_INFO:
- memcpy (arg, frontend_info(),
- sizeof(struct dvb_frontend_info));
- break;
-
- case FE_READ_STATUS:
- {
- fe_status_t *status = arg;
- *status = FE_HAS_SIGNAL
- | FE_HAS_CARRIER
- | FE_HAS_VITERBI
- | FE_HAS_SYNC
- | FE_HAS_LOCK;
- break;
- }
+ *ucblocks = 0;
+ return 0;
+}
- case FE_READ_BER:
- {
- u32 *ber = (u32 *) arg;
- *ber = 0;
- break;
- }
+static int dvb_dummy_fe_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+{
+ return 0;
+}
- case FE_READ_SIGNAL_STRENGTH:
- {
- u8 signal = 0xff;
- *((u16*) arg) = (signal << 8) | signal;
- break;
+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);
}
- case FE_READ_SNR:
- {
- u8 snr = 0xf0;
- *(u16*) arg = (snr << 8) | snr;
- break;
- }
+ return 0;
+}
- case FE_READ_UNCORRECTED_BLOCKS:
- *(u32*) arg = 0;
- break;
+static int dvb_dummy_fe_sleep(struct dvb_frontend* fe)
+{
+ return 0;
+}
- case FE_SET_FRONTEND:
- break;
+static int dvb_dummy_fe_init(struct dvb_frontend* fe)
+{
+ return 0;
+}
- case FE_GET_FRONTEND:
- break;
+static int dvb_dummy_fe_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
+{
+ return 0;
+}
- case FE_SLEEP:
- return 0;
+static int dvb_dummy_fe_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
+{
+ return 0;
+}
- case FE_INIT:
- return 0;
+static void dvb_dummy_fe_release(struct dvb_frontend* fe)
+{
+ struct dvb_dummy_fe_state* state = fe->demodulator_priv;
+ kfree(state);
+}
- case FE_SET_TONE:
- return -EOPNOTSUPP;
+static struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops;
- case FE_SET_VOLTAGE:
- return 0;
+struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void)
+{
+ struct dvb_dummy_fe_state* state = NULL;
- default:
- return -EOPNOTSUPP;
- }
- return 0;
-}
+ /* allocate memory for the internal state */
+ state = kmalloc(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;
-static int dvbdummyfe_attach (struct dvb_i2c_bus *i2c, void **data)
-{
- return dvb_register_frontend (dvbdummyfe_ioctl, i2c, NULL, frontend_info());
+error:
+ kfree(state);
+ return NULL;
}
+static struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops;
-static void dvbdummyfe_detach (struct dvb_i2c_bus *i2c, void *data)
+struct dvb_frontend* dvb_dummy_fe_qpsk_attach()
{
- dvb_unregister_frontend (dvbdummyfe_ioctl, i2c);
-}
+ struct dvb_dummy_fe_state* state = NULL;
+ /* allocate memory for the internal state */
+ state = kmalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL);
+ if (state == NULL) goto error;
-static int __init init_dvbdummyfe (void)
-{
- return dvb_register_i2c_device (THIS_MODULE,
- dvbdummyfe_attach,
- dvbdummyfe_detach);
+ /* 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;
-static void __exit exit_dvbdummyfe (void)
+struct dvb_frontend* dvb_dummy_fe_qam_attach()
{
- dvb_unregister_i2c_device (dvbdummyfe_attach);
+ struct dvb_dummy_fe_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = kmalloc(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,
+};
-module_init(init_dvbdummyfe);
-module_exit(exit_dvbdummyfe);
+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");
-MODULE_PARM(sct, "i");
+
+EXPORT_SYMBOL(dvb_dummy_fe_ofdm_attach);
+EXPORT_SYMBOL(dvb_dummy_fe_qam_attach);
+EXPORT_SYMBOL(dvb_dummy_fe_qpsk_attach);
git://git.onelab.eu / linux-2.6.git / blobdiff