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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 | /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Sony CXD2820R demodulator driver * * Copyright (C) 2010 Antti Palosaari <crope@iki.fi> */ #ifndef CXD2820R_H #define CXD2820R_H #include <linux/dvb/frontend.h> #define CXD2820R_GPIO_D (0 << 0) /* disable */ #define CXD2820R_GPIO_E (1 << 0) /* enable */ #define CXD2820R_GPIO_O (0 << 1) /* output */ #define CXD2820R_GPIO_I (1 << 1) /* input */ #define CXD2820R_GPIO_L (0 << 2) /* output low */ #define CXD2820R_GPIO_H (1 << 2) /* output high */ #define CXD2820R_TS_SERIAL 0x08 #define CXD2820R_TS_SERIAL_MSB 0x28 #define CXD2820R_TS_PARALLEL 0x30 #define CXD2820R_TS_PARALLEL_MSB 0x70 /* * I2C address: 0x6c, 0x6d */ /** * struct cxd2820r_platform_data - Platform data for the cxd2820r driver * @ts_mode: TS mode. * @ts_clk_inv: TS clock inverted. * @if_agc_polarity: IF AGC polarity. * @spec_inv: Input spectrum inverted. * @gpio_chip_base: GPIO. * @get_dvb_frontend: Get DVB frontend. */ struct cxd2820r_platform_data { u8 ts_mode; bool ts_clk_inv; bool if_agc_polarity; bool spec_inv; int **gpio_chip_base; struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); /* private: For legacy media attach wrapper. Do not set value. */ bool attach_in_use; }; /** * struct cxd2820r_config - configuration for cxd2020r demod * * @i2c_address: Demodulator I2C address. Driver determines DVB-C slave I2C * address automatically from master address. * Default: none, must set. Values: 0x6c, 0x6d. * @ts_mode: TS output mode. Default: none, must set. Values: FIXME? * @ts_clock_inv: TS clock inverted. Default: 0. Values: 0, 1. * @if_agc_polarity: Default: 0. Values: 0, 1 * @spec_inv: Spectrum inversion. Default: 0. Values: 0, 1. */ struct cxd2820r_config { /* Demodulator I2C address. * Driver determines DVB-C slave I2C address automatically from master * address. * Default: none, must set * Values: 0x6c, 0x6d */ u8 i2c_address; /* TS output mode. * Default: none, must set. * Values: */ u8 ts_mode; /* TS clock inverted. * Default: 0 * Values: 0, 1 */ bool ts_clock_inv; /* IF AGC polarity. * Default: 0 * Values: 0, 1 */ bool if_agc_polarity; /* Spectrum inversion. * Default: 0 * Values: 0, 1 */ bool spec_inv; }; #if IS_REACHABLE(CONFIG_DVB_CXD2820R) /** * cxd2820r_attach - Attach a cxd2820r demod * * @config: pointer to &struct cxd2820r_config with demod configuration. * @i2c: i2c adapter to use. * @gpio_chip_base: if zero, disables GPIO setting. Otherwise, if * CONFIG_GPIOLIB is set dynamically allocate * gpio base; if is not set, use its value to * setup the GPIO pins. * * return: FE pointer on success, NULL on failure. */ extern struct dvb_frontend *cxd2820r_attach( const struct cxd2820r_config *config, struct i2c_adapter *i2c, int *gpio_chip_base ); #else static inline struct dvb_frontend *cxd2820r_attach( const struct cxd2820r_config *config, struct i2c_adapter *i2c, int *gpio_chip_base ) { printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif #endif /* CXD2820R_H */ |