| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Support for LGDT3302 and LGDT3303 - VSB/QAM |
| 4 | * |
| 5 | * Copyright (C) 2005 Wilson Michaels <wilsonmichaels@earthlink.net> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #ifndef LGDT330X_H |
| 9 | #define LGDT330X_H |
| 10 | |
| 11 | #include <linux/dvb/frontend.h> |
| 12 | |
| 13 | typedef enum lg_chip_t { |
| 14 | UNDEFINED, |
| 15 | LGDT3302, |
| 16 | LGDT3303 |
| 17 | }lg_chip_type; |
| 18 | |
| 19 | /** |
| 20 | * struct lgdt330x_config - contains lgdt330x configuration |
| 21 | * |
| 22 | * @demod_chip: LG demodulator chip LGDT3302 or LGDT3303 |
| 23 | * @serial_mpeg: MPEG hardware interface - 0:parallel 1:serial |
| 24 | * @pll_rf_set: Callback function to set PLL interface |
| 25 | * @set_ts_params: Callback function to set device param for start_dma |
| 26 | * @clock_polarity_flip: |
| 27 | * Flip the polarity of the mpeg data transfer clock using alternate |
| 28 | * init data. |
| 29 | * This option applies ONLY to LGDT3303 - 0:disabled (default) 1:enabled |
| 30 | * @get_dvb_frontend: |
| 31 | * returns the frontend associated with this I2C client. |
| 32 | * Filled by the driver. |
| 33 | */ |
| 34 | struct lgdt330x_config |
| 35 | { |
| 36 | lg_chip_type demod_chip; |
| 37 | int serial_mpeg; |
| 38 | int (*pll_rf_set) (struct dvb_frontend* fe, int index); |
| 39 | int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured); |
| 40 | int clock_polarity_flip; |
| 41 | |
| 42 | struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); |
| 43 | }; |
| 44 | |
| 45 | #if IS_REACHABLE(CONFIG_DVB_LGDT330X) |
| 46 | struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config, |
| 47 | u8 demod_address, |
| 48 | struct i2c_adapter *i2c); |
| 49 | #else |
| 50 | static inline |
| 51 | struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config, |
| 52 | u8 demod_address, |
| 53 | struct i2c_adapter *i2c) |
| 54 | { |
| 55 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
| 56 | return NULL; |
| 57 | } |
| 58 | #endif // CONFIG_DVB_LGDT330X |
| 59 | |
| 60 | #endif /* LGDT330X_H */ |