isl6421.h 1.9 KB

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  1. /*
  2. * isl6421.h - driver for lnb supply and control ic ISL6421
  3. *
  4. * Copyright (C) 2006 Andrew de Quincey
  5. * Copyright (C) 2006 Oliver Endriss
  6. *
  7. * This program is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU General Public License
  9. * as published by the Free Software Foundation; either version 2
  10. * of the License, or (at your option) any later version.
  11. *
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. *
  19. * You should have received a copy of the GNU General Public License
  20. * along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22. * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  23. *
  24. *
  25. * the project's page is at http://www.linuxtv.org
  26. */
  27. #ifndef _ISL6421_H
  28. #define _ISL6421_H
  29. #include <linux/dvb/frontend.h>
  30. /* system register bits */
  31. #define ISL6421_OLF1 0x01
  32. #define ISL6421_EN1 0x02
  33. #define ISL6421_VSEL1 0x04
  34. #define ISL6421_LLC1 0x08
  35. #define ISL6421_ENT1 0x10
  36. #define ISL6421_ISEL1 0x20
  37. #define ISL6421_DCL 0x40
  38. #if defined(CONFIG_DVB_ISL6421) || (defined(CONFIG_DVB_ISL6421_MODULE) && defined(MODULE))
  39. /* override_set and override_clear control which system register bits (above) to always set & clear */
  40. extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
  41. u8 override_set, u8 override_clear);
  42. #else
  43. static inline struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
  44. u8 override_set, u8 override_clear)
  45. {
  46. printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
  47. return NULL;
  48. }
  49. #endif // CONFIG_DVB_ISL6421
  50. #endif