1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * netup-init.c |
4 | * |
5 | * NetUP Dual DVB-S2 CI driver |
6 | * |
7 | * Copyright (C) 2009 NetUP Inc. |
8 | * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru> |
9 | * Copyright (C) 2009 Abylay Ospan <aospan@netup.ru> |
10 | */ |
11 | |
12 | #include "cx23885.h" |
13 | #include "netup-init.h" |
14 | |
15 | static void i2c_av_write(struct i2c_adapter *i2c, u16 reg, u8 val) |
16 | { |
17 | int ret; |
18 | u8 buf[3]; |
19 | struct i2c_msg msg = { |
20 | .addr = 0x88 >> 1, |
21 | .flags = 0, |
22 | .buf = buf, |
23 | .len = 3 |
24 | }; |
25 | |
26 | buf[0] = reg >> 8; |
27 | buf[1] = reg & 0xff; |
28 | buf[2] = val; |
29 | |
30 | ret = i2c_transfer(adap: i2c, msgs: &msg, num: 1); |
31 | |
32 | if (ret != 1) |
33 | pr_err("%s: i2c write error!\n" , __func__); |
34 | } |
35 | |
36 | static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val) |
37 | { |
38 | int ret; |
39 | u8 buf[6]; |
40 | struct i2c_msg msg = { |
41 | .addr = 0x88 >> 1, |
42 | .flags = 0, |
43 | .buf = buf, |
44 | .len = 6 |
45 | }; |
46 | |
47 | buf[0] = reg >> 8; |
48 | buf[1] = reg & 0xff; |
49 | buf[2] = val & 0xff; |
50 | buf[3] = (val >> 8) & 0xff; |
51 | buf[4] = (val >> 16) & 0xff; |
52 | buf[5] = val >> 24; |
53 | |
54 | ret = i2c_transfer(adap: i2c, msgs: &msg, num: 1); |
55 | |
56 | if (ret != 1) |
57 | pr_err("%s: i2c write error!\n" , __func__); |
58 | } |
59 | |
60 | static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg) |
61 | { |
62 | int ret; |
63 | u8 buf[2]; |
64 | struct i2c_msg msg = { |
65 | .addr = 0x88 >> 1, |
66 | .flags = 0, |
67 | .buf = buf, |
68 | .len = 2 |
69 | }; |
70 | |
71 | buf[0] = reg >> 8; |
72 | buf[1] = reg & 0xff; |
73 | |
74 | ret = i2c_transfer(adap: i2c, msgs: &msg, num: 1); |
75 | |
76 | if (ret != 1) |
77 | pr_err("%s: i2c write error!\n" , __func__); |
78 | |
79 | msg.flags = I2C_M_RD; |
80 | msg.len = 1; |
81 | |
82 | ret = i2c_transfer(adap: i2c, msgs: &msg, num: 1); |
83 | |
84 | if (ret != 1) |
85 | pr_err("%s: i2c read error!\n" , __func__); |
86 | |
87 | return buf[0]; |
88 | } |
89 | |
90 | static void i2c_av_and_or(struct i2c_adapter *i2c, u16 reg, unsigned and_mask, |
91 | u8 or_value) |
92 | { |
93 | i2c_av_write(i2c, reg, val: (i2c_av_read(i2c, reg) & and_mask) | or_value); |
94 | } |
95 | /* set 27MHz on AUX_CLK */ |
96 | void netup_initialize(struct cx23885_dev *dev) |
97 | { |
98 | struct cx23885_i2c *i2c_bus = &dev->i2c_bus[2]; |
99 | struct i2c_adapter *i2c = &i2c_bus->i2c_adap; |
100 | |
101 | /* Stop microcontroller */ |
102 | i2c_av_and_or(i2c, reg: 0x803, and_mask: ~0x10, or_value: 0x00); |
103 | |
104 | /* Aux PLL frac for 27 MHz */ |
105 | i2c_av_write4(i2c, reg: 0x114, val: 0xea0eb3); |
106 | |
107 | /* Aux PLL int for 27 MHz */ |
108 | i2c_av_write4(i2c, reg: 0x110, val: 0x090319); |
109 | |
110 | /* start microcontroller */ |
111 | i2c_av_and_or(i2c, reg: 0x803, and_mask: ~0x10, or_value: 0x10); |
112 | } |
113 | |