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drivers
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media
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dvb-frontends
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lgs8gxx.h

lgs8gxx.h 1.9 KB
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  1. /* SPDX-License-Identifier: GPL-2.0-or-later */
    2. 

  2. /*
    3. 

  3.  *    Support for Legend Silicon GB20600 (a.k.a DMB-TH) demodulator
    4. 

  4.  *    LGS8913, LGS8GL5, LGS8G75
    5. 

  5.  *    experimental support LGS8G42, LGS8G52
    6. 

  6.  *
    7. 

  7.  *    Copyright (C) 2007-2009 David T.L. Wong <davidtlwong@gmail.com>
    8. 

  8.  *    Copyright (C) 2008 Sirius International (Hong Kong) Limited
    9. 

  9.  *    Timothy Lee <timothy.lee@siriushk.com> (for initial work on LGS8GL5)
    10. 

  10.  */
    11. 

  11. 

  12. #ifndef __LGS8GXX_H__
    13. 

  13. #define __LGS8GXX_H__
    14. 

  14. 

  15. #include <linux/dvb/frontend.h>
    16. 

  16. #include <linux/i2c.h>
    17. 

  17. 

  18. #define LGS8GXX_PROD_LGS8913 0
    19. 

  19. #define LGS8GXX_PROD_LGS8GL5 1
    20. 

  20. #define LGS8GXX_PROD_LGS8G42 3
    21. 

  21. #define LGS8GXX_PROD_LGS8G52 4
    22. 

  22. #define LGS8GXX_PROD_LGS8G54 5
    23. 

  23. #define LGS8GXX_PROD_LGS8G75 6
    24. 

  24. 

  25. struct lgs8gxx_config {
    26. 

  26. 

  27. 	/* product type */
    28. 

  28. 	u8 prod;
    29. 

  29. 

  30. 	/* the demodulator's i2c address */
    31. 

  31. 	u8 demod_address;
    32. 

  32. 

  33. 	/* parallel or serial transport stream */
    34. 

  34. 	u8 serial_ts;
    35. 

  35. 

  36. 	/* transport stream polarity*/
    37. 

  37. 	u8 ts_clk_pol;
    38. 

  38. 

  39. 	/* transport stream clock gated by ts_valid */
    40. 

  40. 	u8 ts_clk_gated;
    41. 

  41. 

  42. 	/* A/D Clock frequency */
    43. 

  43. 	u32 if_clk_freq; /* in kHz */
    44. 

  44. 

  45. 	/* IF frequency */
    46. 

  46. 	u32 if_freq; /* in kHz */
    47. 

  47. 

  48. 	/*Use External ADC*/
    49. 

  49. 	u8 ext_adc;
    50. 

  50. 

  51. 	/*External ADC output two's complement*/
    52. 

  52. 	u8 adc_signed;
    53. 

  53. 

  54. 	/*Sample IF data at falling edge of IF_CLK*/
    55. 

  55. 	u8 if_neg_edge;
    56. 

  56. 

  57. 	/*IF use Negative center frequency*/
    58. 

  58. 	u8 if_neg_center;
    59. 

  59. 

  60. 	/*8G75 internal ADC input range selection*/
    61. 

  61. 	/*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/
    62. 

  62. 	u8 adc_vpp;
    63. 

  63. 

  64. 	/* slave address and configuration of the tuner */
    65. 

  65. 	u8 tuner_address;
    66. 

  66. };
    67. 

  67. 

  68. #if IS_REACHABLE(CONFIG_DVB_LGS8GXX)
    69. 

  69. extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
    70. 

  70. 					   struct i2c_adapter *i2c);
    71. 

  71. #else
    72. 

  72. static inline
    73. 

  73. struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
    74. 

  74. 				    struct i2c_adapter *i2c) {
    75. 

  75. 	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
    76. 

  76. 	return NULL;
    77. 

  77. }
    78. 

  78. #endif /* CONFIG_DVB_LGS8GXX */
    79. 

  79. 

  80. #endif /* __LGS8GXX_H__ */
    81. 

  81.