1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Montage Technology M88DS3103/M88RS6000 demodulator driver |
4 | * |
5 | * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> |
6 | */ |
7 | |
8 | #ifndef M88DS3103_H |
9 | #define M88DS3103_H |
10 | |
11 | #include <linux/dvb/frontend.h> |
12 | |
13 | /* |
14 | * I2C address |
15 | * 0x68, |
16 | */ |
17 | |
18 | /** |
19 | * enum m88ds3103_ts_mode - TS connection mode |
20 | * @M88DS3103_TS_SERIAL: TS output pin D0, normal |
21 | * @M88DS3103_TS_SERIAL_D7: TS output pin D7 |
22 | * @M88DS3103_TS_PARALLEL: TS Parallel mode |
23 | * @M88DS3103_TS_CI: TS CI Mode |
24 | */ |
25 | enum m88ds3103_ts_mode { |
26 | M88DS3103_TS_SERIAL, |
27 | M88DS3103_TS_SERIAL_D7, |
28 | M88DS3103_TS_PARALLEL, |
29 | M88DS3103_TS_CI |
30 | }; |
31 | |
32 | /** |
33 | * enum m88ds3103_clock_out |
34 | * @M88DS3103_CLOCK_OUT_DISABLED: Clock output is disabled |
35 | * @M88DS3103_CLOCK_OUT_ENABLED: Clock output is enabled with crystal |
36 | * clock. |
37 | * @M88DS3103_CLOCK_OUT_ENABLED_DIV2: Clock output is enabled with half |
38 | * crystal clock. |
39 | */ |
40 | enum m88ds3103_clock_out { |
41 | M88DS3103_CLOCK_OUT_DISABLED, |
42 | M88DS3103_CLOCK_OUT_ENABLED, |
43 | M88DS3103_CLOCK_OUT_ENABLED_DIV2 |
44 | }; |
45 | |
46 | /** |
47 | * struct m88ds3103_platform_data - Platform data for the m88ds3103 driver |
48 | * @clk: Clock frequency. |
49 | * @i2c_wr_max: Max bytes I2C adapter can write at once. |
50 | * @ts_mode: TS mode. |
51 | * @ts_clk: TS clock (KHz). |
52 | * @ts_clk_pol: TS clk polarity. 1-active at falling edge; 0-active at rising |
53 | * edge. |
54 | * @spec_inv: Input spectrum inversion. |
55 | * @agc: AGC configuration. |
56 | * @agc_inv: AGC polarity. |
57 | * @clk_out: Clock output. |
58 | * @envelope_mode: DiSEqC envelope mode. |
59 | * @lnb_hv_pol: LNB H/V pin polarity. 0: pin high set to VOLTAGE_18, pin low to |
60 | * set VOLTAGE_13. 1: pin high set to VOLTAGE_13, pin low to set VOLTAGE_18. |
61 | * @lnb_en_pol: LNB enable pin polarity. 0: pin high to disable, pin low to |
62 | * enable. 1: pin high to enable, pin low to disable. |
63 | * @get_dvb_frontend: Get DVB frontend. |
64 | * @get_i2c_adapter: Get I2C adapter. |
65 | */ |
66 | struct m88ds3103_platform_data { |
67 | u32 clk; |
68 | u16 i2c_wr_max; |
69 | enum m88ds3103_ts_mode ts_mode; |
70 | u32 ts_clk; |
71 | enum m88ds3103_clock_out clk_out; |
72 | u8 ts_clk_pol:1; |
73 | u8 spec_inv:1; |
74 | u8 agc; |
75 | u8 agc_inv:1; |
76 | u8 envelope_mode:1; |
77 | u8 lnb_hv_pol:1; |
78 | u8 lnb_en_pol:1; |
79 | |
80 | struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); |
81 | struct i2c_adapter* (*get_i2c_adapter)(struct i2c_client *); |
82 | |
83 | /* private: For legacy media attach wrapper. Do not set value. */ |
84 | u8 attach_in_use:1; |
85 | }; |
86 | |
87 | /** |
88 | * struct m88ds3103_config - m88ds3102 configuration |
89 | * |
90 | * @i2c_addr: I2C address. Default: none, must set. Example: 0x68, ... |
91 | * @clock: Device's clock. Default: none, must set. Example: 27000000 |
92 | * @i2c_wr_max: Max bytes I2C provider is asked to write at once. |
93 | * Default: none, must set. Example: 33, 65, ... |
94 | * @ts_mode: TS output mode, as defined by &enum m88ds3103_ts_mode. |
95 | * Default: M88DS3103_TS_SERIAL. |
96 | * @ts_clk: TS clk in KHz. Default: 0. |
97 | * @ts_clk_pol: TS clk polarity.Default: 0. |
98 | * 1-active at falling edge; 0-active at rising edge. |
99 | * @spec_inv: Spectrum inversion. Default: 0. |
100 | * @agc_inv: AGC polarity. Default: 0. |
101 | * @clock_out: Clock output, as defined by &enum m88ds3103_clock_out. |
102 | * Default: M88DS3103_CLOCK_OUT_DISABLED. |
103 | * @envelope_mode: DiSEqC envelope mode. Default: 0. |
104 | * @agc: AGC configuration. Default: none, must set. |
105 | * @lnb_hv_pol: LNB H/V pin polarity. Default: 0. Values: |
106 | * 1: pin high set to VOLTAGE_13, pin low to set VOLTAGE_18; |
107 | * 0: pin high set to VOLTAGE_18, pin low to set VOLTAGE_13. |
108 | * @lnb_en_pol: LNB enable pin polarity. Default: 0. Values: |
109 | * 1: pin high to enable, pin low to disable; |
110 | * 0: pin high to disable, pin low to enable. |
111 | */ |
112 | struct m88ds3103_config { |
113 | u8 i2c_addr; |
114 | u32 clock; |
115 | u16 i2c_wr_max; |
116 | u8 ts_mode; |
117 | u32 ts_clk; |
118 | u8 ts_clk_pol:1; |
119 | u8 spec_inv:1; |
120 | u8 agc_inv:1; |
121 | u8 clock_out; |
122 | u8 envelope_mode:1; |
123 | u8 agc; |
124 | u8 lnb_hv_pol:1; |
125 | u8 lnb_en_pol:1; |
126 | }; |
127 | |
128 | #if defined(CONFIG_DVB_M88DS3103) || \ |
129 | (defined(CONFIG_DVB_M88DS3103_MODULE) && defined(MODULE)) |
130 | /** |
131 | * m88ds3103_attach - Attach a m88ds3103 demod |
132 | * |
133 | * @config: pointer to &struct m88ds3103_config with demod configuration. |
134 | * @i2c: i2c adapter to use. |
135 | * @tuner_i2c: on success, returns the I2C adapter associated with |
136 | * m88ds3103 tuner. |
137 | * |
138 | * return: FE pointer on success, NULL on failure. |
139 | * Note: Do not add new m88ds3103_attach() users! Use I2C bindings instead. |
140 | */ |
141 | extern struct dvb_frontend *m88ds3103_attach( |
142 | const struct m88ds3103_config *config, |
143 | struct i2c_adapter *i2c, |
144 | struct i2c_adapter **tuner_i2c); |
145 | extern int m88ds3103_get_agc_pwm(struct dvb_frontend *fe, u8 *_agc_pwm); |
146 | #else |
147 | static inline struct dvb_frontend *m88ds3103_attach( |
148 | const struct m88ds3103_config *config, |
149 | struct i2c_adapter *i2c, |
150 | struct i2c_adapter **tuner_i2c) |
151 | { |
152 | pr_warn("%s: driver disabled by Kconfig\n" , __func__); |
153 | return NULL; |
154 | } |
155 | #define m88ds3103_get_agc_pwm NULL |
156 | #endif |
157 | |
158 | #endif |
159 | |