drivers/media/dvb-frontends/isl6423.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3         Intersil ISL6423 SEC and LNB Power supply controller
   4
   5         Copyright (C) Manu Abraham <abraham.manu@gmail.com>
   6
   7 */
   8
   9 #ifndef __ISL_6423_H
  10 #define __ISL_6423_H
  11
  12 #include <linux/dvb/frontend.h>
  13
  14 enum isl6423_current {
  15         SEC_CURRENT_275m = 0,
  16         SEC_CURRENT_515m,
  17         SEC_CURRENT_635m,
  18         SEC_CURRENT_800m,
  19 };
  20
  21 enum isl6423_curlim {
  22         SEC_CURRENT_LIM_ON = 1,
  23         SEC_CURRENT_LIM_OFF
  24 };
  25
  26 struct isl6423_config {
  27         enum isl6423_current current_max;
  28         enum isl6423_curlim curlim;
  29         u8 addr;
  30         u8 mod_extern;
  31 };
  32
  33 #if IS_REACHABLE(CONFIG_DVB_ISL6423)
  34
  35
  36 extern struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
  37                                            struct i2c_adapter *i2c,
  38                                            const struct isl6423_config *config);
  39
  40 #else
  41 static inline struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
  42                                                   struct i2c_adapter *i2c,
  43                                                   const struct isl6423_config *config)
  44 {
  45         printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  46         return NULL;
  47 }
  48
  49 #endif /* CONFIG_DVB_ISL6423 */
  50
  51 #endif /* __ISL_6423_H */