| 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 | * Sony CXD2820R demodulator driver |
| 4 | * |
| 5 | * Copyright (C) 2010 Antti Palosaari <crope@iki.fi> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | |
| 9 | #ifndef CXD2820R_H |
| 10 | #define CXD2820R_H |
| 11 | |
| 12 | #include <linux/dvb/frontend.h> |
| 13 | |
| 14 | #define CXD2820R_GPIO_D (0 << 0) /* disable */ |
| 15 | #define CXD2820R_GPIO_E (1 << 0) /* enable */ |
| 16 | #define CXD2820R_GPIO_O (0 << 1) /* output */ |
| 17 | #define CXD2820R_GPIO_I (1 << 1) /* input */ |
| 18 | #define CXD2820R_GPIO_L (0 << 2) /* output low */ |
| 19 | #define CXD2820R_GPIO_H (1 << 2) /* output high */ |
| 20 | |
| 21 | #define CXD2820R_TS_SERIAL 0x08 |
| 22 | #define CXD2820R_TS_SERIAL_MSB 0x28 |
| 23 | #define CXD2820R_TS_PARALLEL 0x30 |
| 24 | #define CXD2820R_TS_PARALLEL_MSB 0x70 |
| 25 | |
| 26 | /* |
| 27 | * I2C address: 0x6c, 0x6d |
| 28 | */ |
| 29 | |
| 30 | /** |
| 31 | * struct cxd2820r_platform_data - Platform data for the cxd2820r driver |
| 32 | * @ts_mode: TS mode. |
| 33 | * @ts_clk_inv: TS clock inverted. |
| 34 | * @if_agc_polarity: IF AGC polarity. |
| 35 | * @spec_inv: Input spectrum inverted. |
| 36 | * @gpio_chip_base: GPIO. |
| 37 | * @get_dvb_frontend: Get DVB frontend. |
| 38 | */ |
| 39 | struct cxd2820r_platform_data { |
| 40 | u8 ts_mode; |
| 41 | bool ts_clk_inv; |
| 42 | bool if_agc_polarity; |
| 43 | bool spec_inv; |
| 44 | int **gpio_chip_base; |
| 45 | |
| 46 | struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); |
| 47 | /* private: For legacy media attach wrapper. Do not set value. */ |
| 48 | bool attach_in_use; |
| 49 | }; |
| 50 | |
| 51 | /** |
| 52 | * struct cxd2820r_config - configuration for cxd2020r demod |
| 53 | * |
| 54 | * @i2c_address: Demodulator I2C address. Driver determines DVB-C slave I2C |
| 55 | * address automatically from master address. |
| 56 | * Default: none, must set. Values: 0x6c, 0x6d. |
| 57 | * @ts_mode: TS output mode. Default: none, must set. Values: FIXME? |
| 58 | * @ts_clock_inv: TS clock inverted. Default: 0. Values: 0, 1. |
| 59 | * @if_agc_polarity: Default: 0. Values: 0, 1 |
| 60 | * @spec_inv: Spectrum inversion. Default: 0. Values: 0, 1. |
| 61 | */ |
| 62 | struct cxd2820r_config { |
| 63 | /* Demodulator I2C address. |
| 64 | * Driver determines DVB-C slave I2C address automatically from master |
| 65 | * address. |
| 66 | * Default: none, must set |
| 67 | * Values: 0x6c, 0x6d |
| 68 | */ |
| 69 | u8 i2c_address; |
| 70 | |
| 71 | /* TS output mode. |
| 72 | * Default: none, must set. |
| 73 | * Values: |
| 74 | */ |
| 75 | u8 ts_mode; |
| 76 | |
| 77 | /* TS clock inverted. |
| 78 | * Default: 0 |
| 79 | * Values: 0, 1 |
| 80 | */ |
| 81 | bool ts_clock_inv; |
| 82 | |
| 83 | /* IF AGC polarity. |
| 84 | * Default: 0 |
| 85 | * Values: 0, 1 |
| 86 | */ |
| 87 | bool if_agc_polarity; |
| 88 | |
| 89 | /* Spectrum inversion. |
| 90 | * Default: 0 |
| 91 | * Values: 0, 1 |
| 92 | */ |
| 93 | bool spec_inv; |
| 94 | }; |
| 95 | |
| 96 | |
| 97 | #if IS_REACHABLE(CONFIG_DVB_CXD2820R) |
| 98 | /** |
| 99 | * Attach a cxd2820r demod |
| 100 | * |
| 101 | * @config: pointer to &struct cxd2820r_config with demod configuration. |
| 102 | * @i2c: i2c adapter to use. |
| 103 | * @gpio_chip_base: if zero, disables GPIO setting. Otherwise, if |
| 104 | * CONFIG_GPIOLIB is set dynamically allocate |
| 105 | * gpio base; if is not set, use its value to |
| 106 | * setup the GPIO pins. |
| 107 | * |
| 108 | * return: FE pointer on success, NULL on failure. |
| 109 | */ |
| 110 | extern struct dvb_frontend *cxd2820r_attach( |
| 111 | const struct cxd2820r_config *config, |
| 112 | struct i2c_adapter *i2c, |
| 113 | int *gpio_chip_base |
| 114 | ); |
| 115 | #else |
| 116 | static inline struct dvb_frontend *cxd2820r_attach( |
| 117 | const struct cxd2820r_config *config, |
| 118 | struct i2c_adapter *i2c, |
| 119 | int *gpio_chip_base |
| 120 | ) |
| 121 | { |
| 122 | printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); |
| 123 | return NULL; |
| 124 | } |
| 125 | |
| 126 | #endif |
| 127 | |
| 128 | #endif /* CXD2820R_H */ |