diff options
Diffstat (limited to 'drivers/media/pci/ddbridge')
| -rw-r--r-- | drivers/media/pci/ddbridge/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/media/pci/ddbridge/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/pci/ddbridge/ddbridge-core.c | 4 | ||||
| -rw-r--r-- | drivers/media/pci/ddbridge/ddbridge-dummy-fe.c | 153 | ||||
| -rw-r--r-- | drivers/media/pci/ddbridge/ddbridge-dummy-fe.h | 16 |
5 files changed, 172 insertions, 4 deletions
diff --git a/drivers/media/pci/ddbridge/Kconfig b/drivers/media/pci/ddbridge/Kconfig index dab34fb85c09..169efd558e45 100644 --- a/drivers/media/pci/ddbridge/Kconfig +++ b/drivers/media/pci/ddbridge/Kconfig @@ -15,7 +15,6 @@ config DVB_DDBRIDGE select MEDIA_TUNER_TDA18212 if MEDIA_SUBDRV_AUTOSELECT select DVB_MXL5XX if MEDIA_SUBDRV_AUTOSELECT select DVB_CXD2099 if MEDIA_SUBDRV_AUTOSELECT - select DVB_DUMMY_FE if MEDIA_SUBDRV_AUTOSELECT help Support for cards with the Digital Devices PCI express bridge: - Octopus PCIe Bridge diff --git a/drivers/media/pci/ddbridge/Makefile b/drivers/media/pci/ddbridge/Makefile index 2b77c8d0eb2e..5e7eab81173b 100644 --- a/drivers/media/pci/ddbridge/Makefile +++ b/drivers/media/pci/ddbridge/Makefile @@ -7,7 +7,7 @@ ddbridge-objs := ddbridge-main.o ddbridge-core.o ddbridge-ci.o \ ddbridge-hw.o ddbridge-i2c.o ddbridge-max.o ddbridge-mci.o \ ddbridge-sx8.o -obj-$(CONFIG_DVB_DDBRIDGE) += ddbridge.o +obj-$(CONFIG_DVB_DDBRIDGE) += ddbridge.o ddbridge-dummy-fe.o ccflags-y += -I $(srctree)/drivers/media/dvb-frontends/ ccflags-y += -I $(srctree)/drivers/media/tuners/ diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c index 7a2d19682fe3..7cabb9e9ffe2 100644 --- a/drivers/media/pci/ddbridge/ddbridge-core.c +++ b/drivers/media/pci/ddbridge/ddbridge-core.c @@ -50,7 +50,7 @@ #include "stv6111.h" #include "lnbh25.h" #include "cxd2099.h" -#include "dvb_dummy_fe.h" +#include "ddbridge-dummy-fe.h" /****************************************************************************/ @@ -1265,7 +1265,7 @@ static int demod_attach_dummy(struct ddb_input *input) struct ddb_dvb *dvb = &input->port->dvb[input->nr & 1]; struct device *dev = input->port->dev->dev; - dvb->fe = dvb_attach(dvb_dummy_fe_qam_attach); + dvb->fe = dvb_attach(ddbridge_dummy_fe_qam_attach); if (!dvb->fe) { dev_err(dev, "QAM dummy attach failed!\n"); return -ENODEV; diff --git a/drivers/media/pci/ddbridge/ddbridge-dummy-fe.c b/drivers/media/pci/ddbridge/ddbridge-dummy-fe.c new file mode 100644 index 000000000000..6868a0c4fc82 --- /dev/null +++ b/drivers/media/pci/ddbridge/ddbridge-dummy-fe.c @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Dummy Frontend + * + * Written by Emard <emard@softhome.net> + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/slab.h> + +#include <media/dvb_frontend.h> +#include "ddbridge-dummy-fe.h" + +struct ddbridge_dummy_fe_state { + struct dvb_frontend frontend; +}; + +static int ddbridge_dummy_fe_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + *status = FE_HAS_SIGNAL + | FE_HAS_CARRIER + | FE_HAS_VITERBI + | FE_HAS_SYNC + | FE_HAS_LOCK; + + return 0; +} + +static int ddbridge_dummy_fe_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + *ber = 0; + return 0; +} + +static int ddbridge_dummy_fe_read_signal_strength(struct dvb_frontend *fe, + u16 *strength) +{ + *strength = 0; + return 0; +} + +static int ddbridge_dummy_fe_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + *snr = 0; + return 0; +} + +static int ddbridge_dummy_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + *ucblocks = 0; + return 0; +} + +/* + * Should only be implemented if it actually reads something from the hardware. + * Also, it should check for the locks, in order to avoid report wrong data + * to userspace. + */ +static int ddbridge_dummy_fe_get_frontend(struct dvb_frontend *fe, + struct dtv_frontend_properties *p) +{ + return 0; +} + +static int ddbridge_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 ddbridge_dummy_fe_sleep(struct dvb_frontend *fe) +{ + return 0; +} + +static int ddbridge_dummy_fe_init(struct dvb_frontend *fe) +{ + return 0; +} + +static void ddbridge_dummy_fe_release(struct dvb_frontend *fe) +{ + struct ddbridge_dummy_fe_state *state = fe->demodulator_priv; + + kfree(state); +} + +static const struct dvb_frontend_ops ddbridge_dummy_fe_qam_ops; + +struct dvb_frontend *ddbridge_dummy_fe_qam_attach(void) +{ + struct ddbridge_dummy_fe_state *state = NULL; + + /* allocate memory for the internal state */ + state = kzalloc(sizeof(struct ddbridge_dummy_fe_state), GFP_KERNEL); + if (!state) + return NULL; + + /* create dvb_frontend */ + memcpy(&state->frontend.ops, + &ddbridge_dummy_fe_qam_ops, + sizeof(struct dvb_frontend_ops)); + + state->frontend.demodulator_priv = state; + return &state->frontend; +} +EXPORT_SYMBOL(ddbridge_dummy_fe_qam_attach); + +static const struct dvb_frontend_ops ddbridge_dummy_fe_qam_ops = { + .delsys = { SYS_DVBC_ANNEX_A }, + .info = { + .name = "ddbridge dummy DVB-C", + .frequency_min_hz = 51 * MHz, + .frequency_max_hz = 858 * MHz, + .frequency_stepsize_hz = 62500, + /* symbol_rate_min: SACLK/64 == (XIN/2)/64 */ + .symbol_rate_min = (57840000 / 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 = ddbridge_dummy_fe_release, + + .init = ddbridge_dummy_fe_init, + .sleep = ddbridge_dummy_fe_sleep, + + .set_frontend = ddbridge_dummy_fe_set_frontend, + .get_frontend = ddbridge_dummy_fe_get_frontend, + + .read_status = ddbridge_dummy_fe_read_status, + .read_ber = ddbridge_dummy_fe_read_ber, + .read_signal_strength = ddbridge_dummy_fe_read_signal_strength, + .read_snr = ddbridge_dummy_fe_read_snr, + .read_ucblocks = ddbridge_dummy_fe_read_ucblocks, +}; + +MODULE_DESCRIPTION("ddbridge dummy Frontend"); +MODULE_AUTHOR("Emard"); +MODULE_LICENSE("GPL"); diff --git a/drivers/media/pci/ddbridge/ddbridge-dummy-fe.h b/drivers/media/pci/ddbridge/ddbridge-dummy-fe.h new file mode 100644 index 000000000000..ddf189c09524 --- /dev/null +++ b/drivers/media/pci/ddbridge/ddbridge-dummy-fe.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Driver for Dummy Frontend + * + * Written by Emard <emard@softhome.net> + */ + +#ifndef DDBRIDGE_DUMMY_FE_H +#define DDBRIDGE_DUMMY_FE_H + +#include <linux/dvb/frontend.h> +#include <media/dvb_frontend.h> + +struct dvb_frontend *ddbridge_dummy_fe_qam_attach(void); + +#endif // DDBRIDGE_DUMMY_FE_H |