hd29l2.h 1.8 KB

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  1. /*
  2. * HDIC HD29L2 DMB-TH demodulator driver
  3. *
  4. * Copyright (C) 2011 Metropolia University of Applied Sciences, Electria R&D
  5. *
  6. * Author: Antti Palosaari <crope@iki.fi>
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation; either version 2 of the License, or
  11. * (at your option) any later version.
  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. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21. */
  22. #ifndef HD29L2_H
  23. #define HD29L2_H
  24. #include <linux/dvb/frontend.h>
  25. struct hd29l2_config {
  26. /*
  27. * demodulator I2C address
  28. */
  29. u8 i2c_addr;
  30. /*
  31. * tuner I2C address
  32. * only needed when tuner is behind demod I2C-gate
  33. */
  34. u8 tuner_i2c_addr;
  35. /*
  36. * TS settings
  37. */
  38. #define HD29L2_TS_SERIAL 0x00
  39. #define HD29L2_TS_PARALLEL 0x80
  40. #define HD29L2_TS_CLK_NORMAL 0x40
  41. #define HD29L2_TS_CLK_INVERTED 0x00
  42. #define HD29L2_TS_CLK_GATED 0x20
  43. #define HD29L2_TS_CLK_FREE 0x00
  44. u8 ts_mode;
  45. };
  46. #if IS_REACHABLE(CONFIG_DVB_HD29L2)
  47. extern struct dvb_frontend *hd29l2_attach(const struct hd29l2_config *config,
  48. struct i2c_adapter *i2c);
  49. #else
  50. static inline struct dvb_frontend *hd29l2_attach(
  51. const struct hd29l2_config *config, struct i2c_adapter *i2c)
  52. {
  53. pr_warn("%s: driver disabled by Kconfig\n", __func__);
  54. return NULL;
  55. }
  56. #endif
  57. #endif /* HD29L2_H */