drivers/media/dvb-frontends/cxd2820r.h

   1 /*
   2  * Sony CXD2820R demodulator driver
   3  *
   4  * Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
   5  *
   6  *    This program is free software; you can redistribute it and/or modify
   7  *    it under the terms of the GNU General Public License as published by
   8  *    the Free Software Foundation; either version 2 of the License, or
   9  *    (at your option) any later version.
  10  *
  11  *    This program is distributed in the hope that it will be useful,
  12  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *    GNU General Public License for more details.
  15  *
  16  *    You should have received a copy of the GNU General Public License along
  17  *    with this program; if not, write to the Free Software Foundation, Inc.,
  18  *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21
  22 #ifndef CXD2820R_H
  23 #define CXD2820R_H
  24
  25 #include <linux/dvb/frontend.h>
  26
  27 #define CXD2820R_GPIO_D (0 << 0) /* disable */
  28 #define CXD2820R_GPIO_E (1 << 0) /* enable */
  29 #define CXD2820R_GPIO_O (0 << 1) /* output */
  30 #define CXD2820R_GPIO_I (1 << 1) /* input */
  31 #define CXD2820R_GPIO_L (0 << 2) /* output low */
  32 #define CXD2820R_GPIO_H (1 << 2) /* output high */
  33
  34 #define CXD2820R_TS_SERIAL        0x08
  35 #define CXD2820R_TS_SERIAL_MSB    0x28
  36 #define CXD2820R_TS_PARALLEL      0x30
  37 #define CXD2820R_TS_PARALLEL_MSB  0x70
  38
  39 /*
  40  * I2C address: 0x6c, 0x6d
  41  */
  42
  43 /**
  44  * struct cxd2820r_platform_data - Platform data for the cxd2820r driver
  45  * @ts_mode: TS mode.
  46  * @ts_clk_inv: TS clock inverted.
  47  * @if_agc_polarity: IF AGC polarity.
  48  * @spec_inv: Input spectrum inverted.
  49  * @gpio_chip_base: GPIO.
  50  * @get_dvb_frontend: Get DVB frontend.
  51  */
  52
  53 struct cxd2820r_platform_data {
  54         u8 ts_mode;
  55         bool ts_clk_inv;
  56         bool if_agc_polarity;
  57         bool spec_inv;
  58         int **gpio_chip_base;
  59
  60         struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
  61 /* private: For legacy media attach wrapper. Do not set value. */
  62         bool attach_in_use;
  63 };
  64
  65 struct cxd2820r_config {
  66         /* Demodulator I2C address.
  67          * Driver determines DVB-C slave I2C address automatically from master
  68          * address.
  69          * Default: none, must set
  70          * Values: 0x6c, 0x6d
  71          */
  72         u8 i2c_address;
  73
  74         /* TS output mode.
  75          * Default: none, must set.
  76          * Values:
  77          */
  78         u8 ts_mode;
  79
  80         /* TS clock inverted.
  81          * Default: 0
  82          * Values: 0, 1
  83          */
  84         bool ts_clock_inv;
  85
  86         /* IF AGC polarity.
  87          * Default: 0
  88          * Values: 0, 1
  89          */
  90         bool if_agc_polarity;
  91
  92         /* Spectrum inversion.
  93          * Default: 0
  94          * Values: 0, 1
  95          */
  96         bool spec_inv;
  97 };
  98
  99
 100 #if IS_REACHABLE(CONFIG_DVB_CXD2820R)
 101 extern struct dvb_frontend *cxd2820r_attach(
 102         const struct cxd2820r_config *config,
 103         struct i2c_adapter *i2c,
 104         int *gpio_chip_base
 105 );
 106 #else
 107 static inline struct dvb_frontend *cxd2820r_attach(
 108         const struct cxd2820r_config *config,
 109         struct i2c_adapter *i2c,
 110         int *gpio_chip_base
 111 )
 112 {
 113         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
 114         return NULL;
 115 }
 116
 117 #endif
 118
 119 #endif /* CXD2820R_H */