LXR linux/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/kconfig.h>
  26#include <linux/dvb/frontend.h>
  27
  28#define CXD2820R_GPIO_D (0 << 0) /* disable */
  29#define CXD2820R_GPIO_E (1 << 0) /* enable */
  30#define CXD2820R_GPIO_O (0 << 1) /* output */
  31#define CXD2820R_GPIO_I (1 << 1) /* input */
  32#define CXD2820R_GPIO_L (0 << 2) /* output low */
  33#define CXD2820R_GPIO_H (1 << 2) /* output high */
  34
  35#define CXD2820R_TS_SERIAL        0x08
  36#define CXD2820R_TS_SERIAL_MSB    0x28
  37#define CXD2820R_TS_PARALLEL      0x30
  38#define CXD2820R_TS_PARALLEL_MSB  0x70
  39
  40struct cxd2820r_config {
  41        /* Demodulator I2C address.
  42         * Driver determines DVB-C slave I2C address automatically from master
  43         * address.
  44         * Default: none, must set
  45         * Values: 0x6c, 0x6d
  46         */
  47        u8 i2c_address;
  48
  49        /* TS output mode.
  50         * Default: none, must set.
  51         * Values:
  52         */
  53        u8 ts_mode;
  54
  55        /* IF AGC polarity.
  56         * Default: 0
  57         * Values: 0, 1
  58         */
  59        bool if_agc_polarity;
  60
  61        /* Spectrum inversion.
  62         * Default: 0
  63         * Values: 0, 1
  64         */
  65        bool spec_inv;
  66};
  67
  68
  69#if IS_ENABLED(CONFIG_DVB_CXD2820R)
  70extern struct dvb_frontend *cxd2820r_attach(
  71        const struct cxd2820r_config *config,
  72        struct i2c_adapter *i2c,
  73        int *gpio_chip_base
  74);
  75#else
  76static inline struct dvb_frontend *cxd2820r_attach(
  77        const struct cxd2820r_config *config,
  78        struct i2c_adapter *i2c,
  79        int *gpio_chip_base
  80)
  81{
  82        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  83        return NULL;
  84}
  85
  86#endif
  87
  88#endif /* CXD2820R_H */
  89